We present a Chinese word segmentation system submitted to the closed track of Sighan bakeoff 2005. Our segmenter was built using a conditional random field sequence model that provides a framework to use a large number of linguistic features such as character identity, morphological and character reduplication features. Because our morphological features were extracted from the training corpora automatically, our system was not biased toward any particular variety of Mandarin. Thus, our system does not overfit the variety (...) of Mandarin most familiar to the system's designers. Our final system achieved a F-score of.. (shrink)

Discriminative feature-based methods are widely used in natural language processing, but sentence parsing is still dominated by generative methods. While prior feature-based dynamic programming parsers have restricted training and evaluation to artificially short sentences, we present the first general, featurerich discriminative parser, based on a conditional random field model, which has been successfully scaled to the full WSJ parsing data. Our efficiency is primarily due to the use of stochastic optimization techniques, as well as parallelization and chart (...) prefiltering. On WSJ15, we attain a state-of-the-art F-score of 90.9%, a 14% relative reduction in error over previous models, while being two orders of magnitude faster. On sentences of length 40, our system achieves an F-score of 89.0%, a 36% relative reduction in error over a generative baseline. (shrink)

We show a number of improvements in the use of Hidden Conditional Random Fields for phone classification on the TIMIT and Switchboard corpora. We first show that the use of regularization effectively prevents overfitting, improving over other methods such as early stopping. We then show that HCRFs are able to make use of non-independent features in phone classification, at least with small numbers of mixture components, while HMMs degrade due to their strong independence assumptions. Finally, we successfully apply (...) Maximum a Posteriori adaptation to HCRFs, decreasing the phone classification error rate in the Switchboard corpus by around 1% – 5% given only small amounts of adaptation data. (shrink)

This paper extends Kripke’s theory of truth to a language with a variably strict conditional operator, of the kind that Stalnaker and others have used to represent ordinary indicative conditionals of English. It then shows how to combine this with a different and independently motivated conditional operator, to get a substantial logic of restricted quantification within naive truth theory.

ABSTRACT Section 1 discusses properties and propositions, and some of the motivation for an account in which property instantiation and propositional truth behave ‘naively’. Section 2 generalizes a standard Kripke construction for naive properties and propositions, in a language with modal operators but no conditionals. Whereas Kripke uses a 3-valued value space, the generalized account allows for a broad array of value spaces, including the unit interval [0,1]. This is put to use in Section 3, where I add to the (...) language a conditional suitable for restricting quantification. The shift from a value space based on the ‘mini-space’ {0,, 1} to one based on the ‘mini-space’ [0,1] leads to more satisfactory results than I was able to achieve in previous work: a vast variety of paradoxical sentences can now be treated very simply. In Section 4 I make a further addition to the language, a conditional modeled on the ordinary English conditional, paying particular attention to how it interacts with the restricted quantifier conditional. This is all done in the [0,1] framework, and two alternatives are considered for how the ordinary conditional is to be handled; one of them results from adding a tweak to a construction by Ross Brady. Section 5 discusses a further alternative, a standard relevance conditional (for the ordinary conditional, perhaps for use with a different quantifier-restricting conditional), but argues that it is not promising. Section 6 discusses the identity conditions of properties and propositions (again in the setting of a value space based on [0,1]); the issue of achieving naivety for coarse-grained properties is seen to be more complicated than some brief remarks in Field [2010] suggested, but a way to get a fair degree of coarse-grainedness is shown. (shrink)

There is good evidence that, in general, autonomic conditioning in humans occurs only when subjects can verbalize the contingencies of conditioning. However, one form of conditioning, evaluative conditioning (EC), seems exceptional in that a growing body of evidence suggests that it can occur without conscious contingency awareness. As such, EC offers a unique insight into what role contingency awareness might play in associative learning. Despite this evidence, there are reasons to doubt that evaluative conditioning can occur without conscious awareness. This (...) paper aims to critically review the EC literature and to draw some parallels to what is known about autonomic conditioning. In doing so, some important general issues about measuring contingency awareness are raised. These issues are illustrated with a brief report of an experiment in which a sensitive measure of contingency awareness is compared against a commonly used measure. (shrink)

Two experiments are described that investigate the effects of attention in moderating evaluative conditioning (EC) effects in a picture‐picture paradigm in which previously discovered experimental artifacts (e.g., Field & Davey, 1999 Field, AP, and Davey, GCL, (1999). Reevaluating evaluative conditioning: A nonassociative explanation of conditioning effects in the visual evaluative conditioning paradigm, Journal of Experimental Psychology. Animal Behavior Processes 25 ((1999)), pp. 211–224.[Crossref], [PubMed], [Web of Science ®], [Google Scholar]) were overcome by counterbalancing conditioned stimuli (CSs) and unconditioned (...) stimuli (USs) across participants. Conditioned responses for individuals who had attention enhanced were compared against a control group and groups for whom attention was impeded using a distracter task. In a second experiment the effects of attention were dissociated from those of contingency awareness by using backward‐masked US presentations. The results of these experiments indicate that although associative EC effects may not be disrupted by a lack of contingency awareness, attention is an important factor in establishing conditioning. These results shed some light onto the possible boundary conditions that could explain past inconsistencies in obtaining EC effects in the visual paradigm. (shrink)

In her commentary of Field (1999), Hammerl (1999) has drawn attention to several interesting points concerning the issue of contingency awareness in evaluative conditioning. First, she comments on several contentious issues arising from Field's review of the evaluative conditioning literature, second she critiques the data from his pilot study and finally she argues the case that EC is a distinct form of conditioning that can occur in the absence of contingency awareness. With reference to these criticisms, this reply (...) attempts to address Hammerl's comments by exploring the issues of how awareness is defined, how it is best measured, and whether it is reasonable to believe that EC uniformly occurs in the absence of contingency awareness. The article concludes that the available evidence supports Field's proposition that EC is, in fact, Pavlovian learning. (shrink)

Are there questions for which 'there is no determinate fact of the matter' as to which answer is correct? Most of us think so, but there are serious difficulties in maintaining the view, and in explaining the idea of determinateness in a satisfactory manner. The paper argues that to overcome the difficulties, we need to reject the law of excluded middle; and it investigates the sense of 'rejection' that is involved. The paper also explores the logic that is required if (...) we reject excluded middle, with special emphasis on the conditional. There is also discussion of higher order indeterminacy (in several different senses) and of penumbral connections; and there is a suggested definition of determinateness in terms of the conditional and a discussion of the extent to which the notion of determinateness is objective. And there are suggestions about a unified treatment of vagueness and the semantic paradoxes. (shrink)

The paper offers a solution to the semantic paradoxes, one in which (1) we keep the unrestricted truth schema “True(A)↔A”, and (2) the object language can include its own metalanguage. Because of the first feature, classical logic must be restricted, but full classical reasoning applies in “ordinary” contexts, including standard set theory. The more general logic that replaces classical logic includes a principle of substitutivity of equivalents, which with the truth schema leads to the general intersubstitutivity of True(A) with A (...) within the language.The logic is also shown to have the resources required to represent the way in which sentences (like the Liar sentence and the Curry sentence) that lead to paradox in classical logic are “defective”. We can in fact define a hierarchy of “defectiveness” predicates within the language. Contrary to claims that any solution to the paradoxes just breeds further paradoxes (“revenge problems”) involving defectiveness predicates, there is a general consistency/conservativeness proof that shows that talk of truth and the various “levels of defectiveness” can all be made coherent together within a single object language. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Psychopathy, Other-Regarding Moral Beliefs, and ResponsibilityLloyd Fields (bio)AbstractIn this paper I seek to show that at least one kind of psychopath is incapable of forming other-regarding moral beliefs; hence that they cannot act for other-regarding moral reasons; and hence that they are not appropriate subjects for the assessment of either moral or legal responsibility. Various attempts to characterize psychopaths are considered and rejected, in particular the widely held view (...) that psychopaths are, in general, incapable of understanding moral concepts. The particular disability proposed here, the incapacity to form other-regarding moral beliefs, is then derived from an analysis of what is required for someone to be a responsible agent. This is illustrated with a detailed case history. A defect of this kind is shown to vitiate moral responsibility, because it renders the psychopath irresponsive to the social pressures which normally ensure respect for moral norms. It is also shown that the psychopath is not a suitable subject for the assessment of legal responsibility, because he lacks the capacity to act from common prudence to avoid sanctions. I conclude that the attempt to characterize particular defects from among the heterogeneity of psychopathic subjects, could lead to better targeted, and hence to more effective, management of particular cases.KeywordsCriminality, mental illness, personality disorder, blame, liability, moral beliefs, guilt, social moralityIntroductionThe term “psychopath” has been used with a wide variety of different meanings and, no doubt, covers a heterogeneous group of subjects (Criminal behaviour and mental health 1992). My aim in this paper is to argue that at least a subgroup of those subjects are characterized by an inability to form other-regarding moral beliefs—and hence, for this particular reason, are not morally responsible agents—and that they also lack the capacity for prudence, and hence are not legally responsible agents.I begin by distinguishing the particular sense in which I will be using the term “psychopathy.” I then consider some suggestions in the literature regarding the defect by which psychopaths might be characterized—that they are mentally ill, or incapable of understanding moral concepts. In rejecting these, I come to the suggestion that the relevant defect is an inability to form other-regarding moral beliefs, a defect which is graphically illustrated by a case report from the literature. I explore the implication of this kind of defect for [End Page 261] moral responsibility as a socially-embedded notion, and the implication of the psychopath’s inability to exercise prudence in relation to legal liability.Nothing in this paper should be taken to suggest that psychopaths are irredeemable. On the contrary, as I argue in an endnote, correctly characterizing the defect from which they suffer leads directly to forms of treatment whose effectiveness has acquired a measure of empirical support.The Nature of PsychopathyPsychopathy is not a homogeneous concept; there are different types of psychopaths. For example, Henderson identified a type of psychopath who he classified as “Predominantly Creative,” exemplified by such figures as T. E. Lawrence and Joan of Arc. In people of this type genius is associated with heightened sensitivity, psychosexual immaturity and emotional instability (Henderson 1939, 108–20; Henderson and Gillespie 1969, 317). Predominantly creative psychopaths do not come within my purview.By “psychopathy” I shall mean the specific form of personality disorder described by Cleckley in his book, The Mask of Sanity (Cleckley 1964). Cleckley’s description forms the basis of Hare’s Revised (20-item) Psychopathy Checklist. The Checklist includes the following personality traits and deviant behaviors:1. Glibness/superficial charm.2. Grandiose sense of self-worth.3. Need for stimulation/proneness to boredom.4. Pathological lying.5. Conning/manipulative.6. Lack of remorse or guilt.7. Shallow affect.8. Callous/lack of empathy.9. Parasitic lifestyle.10. Poor behavioral controls.11. Promiscuous sexual behavior.12. Early behavior problems.13. Lack of realistic, long-term plans.14. Impulsivity.15. Irresponsibility.16. Failure to accept responsibility for own actions.17. Many short-term marital relationships.18. Juvenile delinquency.19. Revocation of conditional release.20. Criminal versatility (Hare 1986, 18). 1This conceptualization resembles in many respects the category of Antisocial Personality Disorder as described in the American Psychiatric... (shrink)

The paper distinguishes two approaches to understanding the representational content of sentences and intentional states, and its role in describing people, predicting and explaining their behavior, and so forth. It sets forth the case for one of these approaches, the “egocentric” one, initially on the basis of its ability to explain the near‐indefeasibility of ascriptions of content to our own terms (“‘dogs’ as I use it means dogs”), but more generally on the basis of its providing an attractive overall picture (...) of the descriptive and explanatory role of representational content. In doing this, the paper relates the egocentric view to an “immanent” or “deflationary” view of reference and truth conditions, and also to the view of reference‐talk and truth‐talk as anaphoric devices. It discusses the indeterminacy of content ascriptions to those in communities with radically different theories, a phenomenon that is unsurprising on the egocentric approach, and connects this to the thesis of the normativity of meaning. (It does all this in rather broad brush: many strands of the egocentric account will be familiar, and are the subject of familiar controversies; the point of the paper is less to address these controversies individually than to tie the strands together into what is hoped to be an appealing package.). (shrink)

The naive theory of properties states that for every condition there is a property instantiated by exactly the things which satisfy that condition. The naive theory of properties is inconsistent in classical logic, but there are many ways to obtain consistent naive theories of properties in nonclassical logics. The naive theory of classes adds to the naive theory of properties an extensionality rule or axiom, which states roughly that if two classes have exactly the same members, they are identical. In (...) this paper we examine the prospects for obtaining a satisfactory naive theory of classes. We start from a result by Ross Brady, which demonstrates the consistency of something resembling a naive theory of classes. We generalize Brady’s result somewhat and extend it to a recent system developed by Andrew Bacon. All of the theories we prove consistent contain an extensionality rule or axiom. But we argue that given the background logics, the relevant extensionality principles are too weak. For example, in some of these theories, there are universal classes which are not declared coextensive. We elucidate some very modest demands on extensionality, designed to rule out this kind of pathology. But we close by proving that even these modest demands cannot be jointly satisfied. In light of this new impossibility result, the prospects for a naive theory of classes are bleak. (shrink)

ABSTRACTWhether valence change during evaluative conditioning is mediated by a link between the conditional stimulus and the unconditional stimulus or between the CS and the unconditional response is a matter of continued debate. Changing the valence of the US after conditioning, known as US revaluation, can be used to dissociate these accounts. Changes in CS valence after US revaluation provide evidence for S-S learning but if CS valence does not change, evidence for S-R learning is found. Support for S-S (...) learning has been provided by most past revaluation studies, but typically the CS and US have been from the same stimulus category, the task instructions have suggested that judgements of the CS should be based on the US, and USs have been mildly valenced stimuli. These factors may bias the results in favour of S-S learning. We examined whether S-R learning would be evident when CSs and USs were taken from different categories, the task instructions were removed, a... (shrink)

If properties are to play a useful role in semantics, it is hard to avoid assuming the naïve theory of properties: for any predicate Θ(x), there is a property such that an object o has it if and only if Θ(o). Yet this appears to lead to various paradoxes. I show that no paradoxes arise as long as the logic is weakened appropriately; the main difficulty is finding a semantics that can handle a conditional obeying reasonable laws without engendering (...) paradox. I employ a semantics which is infinite-valued, with the values only partially ordered. Can the solution be adapted to naïve set theory? Probably not, but limiting naïve comprehension in set theory is perfectly satisfactory, whereas this is not so in a property theory used for semantics. (shrink)

The paper shows how we can add a truth predicate to arithmetic (or formalized syntactic theory), and keep the usual truth schema Tr( ) ↔ A (understood as the conjunction of Tr( ) → A and A → Tr( )). We also keep the full intersubstitutivity of Tr(>A>)) with A in all contexts, even inside of an →. Keeping these things requires a weakening of classical logic; I suggest a logic based on the strong Kleene truth tables, but with → (...) as an additional connective, and where the effect of classical logic is preserved in the arithmetic or formal syntax itself. Section 1 is an introduction to the problem and some of the difficulties that must be faced, in particular as to the logic of the →; Section 2 gives a construction of an arithmetically standard model of a truth theory; Section 3 investigates the logical laws that result from this; and Section 4 provides some philosophical commentary. (shrink)

A proper evaluation of the biological significance of Pavlovian conditioning requires consideration of performance mechanisms. Domjan et al.'s definition of net benefit is simplistic, and their model promotes convergence in behaviour, ignoring the possibility of innovation.

ABSTRACT Genevieve Lloyd argues that when we follow Spinoza in understanding reason as a part of nature, we gain new insights into the human condition. Specifically, we gain a new political insight: we should respond to cultural difference with a pluralist ethos. This is because there is no pure universal reason; human minds find their reason shaped differently by their various embodied social contexts. Furthermore, we can use the resources of the imagination to bring this ethos about. In my response, (...) I offer a friendly challenge to Lloyd’s characterisation of the lessons of Spinoza’s philosophy. I argue that Lloyd’s Spinoza remains excessively unpolitical, even in the moment that he is brought to bear on contemporary politics. An unpluralistic attitude may well be rationally inferior, but is it really explained by insufficient or inappropriate imagination? To the contrary, a properly Spinozist account of reason must include an account of the concrete determinants of reason’s imperfect realisation in the world. In Spinoza’s own oeuvre, this is carried out through an ever-increasing—and ever more sociological—interest in the political structures within which individual reason flourishes or withers. (shrink)

Fulcher and Hammerl's (2001) important exploration of the role of contingency awareness in evaluative conditioning (EC) raises a lot of issues for discussion: (1) what boundaries, if any, exist between EC and affective learning paradigms?; (2) if EC does occur without awareness does this mean it is nonpropositional learning?; (3) is EC driven by stimulus-response (S-R), rather than stimulus-stimulus (S-S), associations and if so should it then surprise us that contingency awareness is not important?; and (4) if S-R associations are (...) at the heart of EC, should we automatically assume EC is part of a different learning mechanism to autonomic Pavlovian conditioning (Field, 2000a, 2000b)? This article, after a critical review of Fulcher and Hammerl's work, discusses these issues with reference to what can be realistically inferred about the mechanisms underlying EC. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Commentary on “Sanity and Irresponsibility”Lloyd Fields (bio)AbstractI make two criticisms of Wilson’s proposal to dispense with a loaded axiological criterion of sanity. First, Edwards’s axiological criterion of sanity, which Wilson accepts, involves the requirement of impartiality, which at least excludes some standards of right and wrong. Second, value pluralism applies only to morally acceptable forms of life and thus presupposes a standard of right and wrong. I conclude by (...) noting that mental illnesses are not sufficiently characterised by extreme and persistent deviance from practical rationality, as conceived by Edwards and Wilson.KeywordsSanity, responsibility, mental illness, value pluralismWilson’s paper is set in an important tradition of which Susan Wolf is a notable exemplar. He tackles the crucially important issue of how practical rationality is related to mental health and of how certain forms of irrationality are connected with mental illness. This issue must be taken into account in order to avoid infecting the criteria of sanity with “idiosyncratic or culturally biased norms.” Like Wolf (1989, 137–151), Wilson holds that sanity is a necessary condition of responsibility. But Wilson rejects the second of Wolf’s two criteria of sanity on the grounds that it invokes a definite normative theory of right and wrong. He proposes instead that whether an agent is sane should be decided on the basis of whether s/he displays practical rationality, as defined by Edwards’s list of seven items. Following Edwards, Wilson implicitly equates “sanity” with “mental health” and “insanity” with “mental illness.” By rejecting an axiological criterion of sanity that depends on a normative theory of right and wrong, Wilson is able to ensure that individuals like JoJo are not judged to be insane and hence not morally responsible for their actions. Wilson is right to stress the importance of our not applying notions such as “mental illness” or “insanity” too widely, especially in such a way as to allow blameworthy persons to escape blame and punishment.But are Wilson’s own criteria of sanity free from dependence on a normative theory, or a normative standard, of right and wrong? First, let us note that Wilson states Edwards’s seventh condition of practical rationality as follows: “holding values that are or would be adopted under the conditions of (negative) freedom.” Edwards’s own formulation of this condition is the following: “having values which have been (or would be) adopted under conditions of freedom, enlightenment and impartiality” (1982, 315). Wilson explains “freedom” as the absence of coercion. It is uncertain what “enlightenment” means in this context. Impartiality would seem to include being impartial between oneself and others and between one’s own tribe, nation or race and that of others. Although this requirement is perhaps too general to be regarded as a sufficient standard [End Page 303] of right and wrong, it is at least part of such normative theories as utilitarianism and Kant’s moral theory, while it is inconsistent with ethical egoism, i.e., the view that an action is right or wrong depending on whether it serves or frustrates the agent’s overall best interests. One could dispute Wilson’s claim, therefore, that Edwards’s seventh item is not a “loaded” axiological criterion.Second, Wilson maintains that we can avoid assuming a loaded axiological criterion for sanity by adopting the position of value pluralism. Wolf’s axiological criterion for sanity is that the agent should be capable of knowing the difference between right and wrong. Wilson holds that this criterion, as presented, invokes a normative theory of right and wrong. The criterion would not do so if it were applied in accordance with value pluralism, which, Wilson says, “rejects the notion that there is one monolithic theory of right and wrong without denying that an actor may behave virtuously or viciously.” Wilson appears to assume that an “unloaded” version of Wolf’s axiological criterion would be more or less equivalent to Edwards’s seventh condition of practical rationality.Value pluralism maintains that there are incompatible forms of life that display distinct virtues. “Whichever form of life one is pursuing there are virtues which elude one because they are available only to people pursuing alternative and... (shrink)

Debates over vaccine mandates raise intense emotions, as reflected in the current controversy over whether to mandate the vaccine against human papilloma virus (HPV), the virus that can cause cervical cancer. Public health ethics so far has failed to facilitate meaningful dialogue between the opposing sides. When stripped of its emotional charge, the debate can be framed as a contest between competing ethical values. This framework can be conceptualized graphically as a conflict between autonomy on the one hand, which militates (...) against government intrusion, and beneficence, utilitarianism, justice, and nonmaleficence on the other, which may lend support to intervention. When applied to the HPV vaccine, this framework would support a mandate based on utilitarianism, if certain conditions are met and if herd immunity is a realistic objective. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Response to the CommentariesLloyd FieldsAbstractIn this response, I address three points raised in the commentaries: the question of whether there is a legitimate formal use of “moral,” the claim that a certain sort of affective capacity is required for acquiring the capacity to form other-regarding moral beliefs, and the problem of how to show that psychopaths lack the capacity to form other-regarding moral beliefs. I maintain that there is (...) a use of “moral” according to which moral beliefs need not be rational. Regarding the affective capacity that Adshead identifies, I explain that I had not intended that such a capacity be constitutive of a moral belief, even an other-regarding one. I then try a new approach, in the light of Adshead’s commentary, to the third point addressed, according to which the psychopath is unable to form other-regarding moral beliefs because a causally necessary condition for doing so is absent in him.KeywordsMoral beliefs, moral understanding, personality disorder, empathy, incapacity, responsibilityThe criticisms offered in the three excellent commentaries on my paper raise deep and important issues. I agree with many of the points made and will respond to three key issues: (1) the question of whether there is a legitimate formal use of “moral”; (2) the claim that there is a certain sort of affective capacity that is required in order to form other-regarding moral beliefs; (3) the problem of how to show that psychopaths lack the capacity to form other-regarding moral beliefs.I concede that Duff establishes (Duff 1977) that the psychopath lacks moral understanding in Duff’s own content-based sense of “moral.” It is illuminating, however, to emphasize that in my formal sense a psychopath of the kind that I consider in my paper is capable of some degree of understanding of “moral” concepts. Unlike Duff, I do not build rationality into my account of moral principles. Hence, I can accommodate eccentric, irrational or even “crazy” moral beliefs like that of Duff’s split-infinitive fanatic. A person can have irrational factual beliefs; why not irrational moral beliefs?Adshead in her commentary attributes to me the claim that moral beliefs, including other-regarding beliefs, “result” in a disposition to experience certain emotions, and to have certain attitudes in certain situations. She then writes, “it is arguable that the disposition to experience certain emotions and have certain attitudes towards others could be critical to acquiring the capacity to have other-regarding beliefs.” There is only an apparent disagreement here. First, I intended to claim that a disposition to experience certain emotions, etc., is partly constitutive of having a moral belief, not a result of having one. Second, in specifying my third condition of having a moral belief, I had in mind such attitudes and emotions as approval, disapproval, indignation and remorse. Adshead identifies an affective capacity, aspects of which are the recognition of, empathy with, and sympathy with, another’s distress. This capacity seems to correspond more or less to what Rousseau described as “natural compassion” (Rousseau [End Page 291] 1973, 66–69), which arises prior to reflection and the use of reason, and which is exemplified by a mother’s responsiveness to the distress of her child. Rousseau distinguished natural compassion from moral virtues, which require the use of reason. I agree with Adshead that having this affective capacity is likely to be critical to acquiring the capacity to have other-regarding moral beliefs.Radden’s incisive commentary poses the problem of how to show that the psychopath lacks the capacity to form other-regarding moral beliefs, since this does not follow from the fact that he fails to form them. In the light of Adshead’s commentary, I should like to try a different approach to this problem. At least one type of situation in which we say that something, x, cannot do a certain sort of thing, d, is one where a causally necessary condition for x doing d is absent. For example, we should say of a car, not simply that it does not run, but that, as it is presently constituted, it cannot run, if we found that the carburetor of its... (shrink)

Evaluative conditioning (EC) is one of the terms that is used to refer to associatively induced changes in liking. Many controversies have arisen in the literature on EC. Do associatively induced changes in liking actually exist? Does EC depend on awareness of the fact that stimuli are associated? Is EC resistant to extinction? Does attention help or hinder EC? As an introduction to this special issue, we will discuss the extent to which the papers that are published in this issue (...) help to resolve some of the controversies that surround EC. We also speculate about possible boundary conditions of EC and attempt to reconcile conflicting results on the functional properties of EC. (shrink)

Evaluative conditioning (EC) is one of the terms that is used to refer to associatively induced changes in liking. Many controversies have arisen in the literature on EC. Do associatively induced changes in liking actually exist? Does EC depend on awareness of the fact that stimuli are associated? Is EC resistant to extinction? Does attention help or hinder EC? As an introduction to this special issue, we will discuss the extent to which the papers that are published in this issue (...) help to resolve some of the controversies that surround EC. We also speculate about possible boundary conditions of EC and attempt to reconcile conflicting results on the functional properties of EC. (shrink)

The relationship between philosophy and research on artificial intelligence (AI) has been difficult since its beginning, with mutual misunderstanding and sometimes even hostility. By contrast, we show how an approach informed by both philosophy and AI can be productive. After reviewing some popular frameworks for computation and learning, we apply the AI methodology of “build it and see” to tackle the philosophical and psychological problem of characterizing perception as distinct from sensation. Our model comprises a network of very simple, but (...) interacting agents which have binary experiences of the “yes/no”-type and communicate their experiences with each other. When does such a network refer to a single agent instead of a distributed network of entities? We apply machine learning techniques to address the following related questions: i) how can the model explain stability of compound entities, and ii) how could the model implement a single task such as perceptual inference? We thereby find consistency with previous work on “interface” strategies from perception research. While this reflects some necessary conditions for the ascription of agency, we suggest that it is not sufficient. Here, AI research, if it is intended to contribute to conceptual understanding, would benefit from issues previously raised by philosophy. We thus conclude the article with a discussion of action-selection, the role of embodiment, and consciousness to make this more explicit. We conjecture that a combination of AI research and philosophy allows general principles of mind and being to emerge from a “quasi-empirical” investigation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:161 HUME ON RESPONSIBILITY For Hume, to hold a person morally responsible for an action is morally to approve of him or to blame him in virtue of the action. Moreover, as he says in the Treatise of Human Nature, "approbation or blame... is nothing but a fainter and more imperceptible love or hatred." How must an action be related to a person in order for the person to (...) be held morally responsible for the action? Since to hold a person morally responsible for an action is morally to approve of him or to blame him in virtue of the action, and since moral approval or blame is nothing but a fainter and more imperceptible love or hatred, the first stage in answering this question is to attempt to answer the following more general question: How must an action be related to a person in order for the person to be loved or hated because of the action? This question, in turn, requires one to consider some of the main features of Hume's account of the passions of love and hatred. One main feature of Hume's account of these passions is that he distinguishes between the object of love and hatred and their causes. Hume says: As the immediate object of pride and humility is self or that identical person, of whose thoughts, actions, and sensations we are intimately conscious; so the object of love and hatred is some other person, of whose thoughts, actions, and sensations we are not conscious (T 329). Though the object of love and hatred be some person other than one-self, the object is not, strictly speaking, the cause, that is, the sole and 162 sufficient cause. For if the other person were the cause, then he would cause both passions in oneself; and since love and hatred nullify one another, neither could ever exist. The causes of love and hatred are complex and diversified. The ingredients of such causes are as follows: First, there are certain general qualities or circumstances. These may be subdivided as follows: (a) mental qualities: qualities of a person such as virtue, knowledge, wit, tend to produce love; those such as vice, ignorance, dullness, tend to produce hatred; (b) bodily features: beauty, strength, swiftness are conducive to love; their opposites, to hatred; (c) external advantages and disadvantages, such as family position, possessions, clothing, etc., can contribute to the production of love or hatred. But, secondly, these qualities or circumstances, considered in abstraction, cannot cause love or hatred. They must be related to the person who is the object of love or hatred. For example, knowing of a beautiful palace cannot lead one to esteem a particular prince unless the palace is related to him by, for instance, being his property. Thirdly, in order for mental qualities, bodily features, or external advantages or disadvantages to produce love or hatred, they must not only be related to the object of these passions; they must also induce pleasure or displeasure. Without pleasure or displeasure, neither love nor hatred could arise. How, then, do actions figure in the causation of love or hatred? An action can cause pleasure or pain. But, for Hume, an action's production of pleasure or pain is a necessary but not a sufficient condition for the production of love or hatred towards the person whose action it is. In addition, 163 the action must be related to the person. But an action is of relatively short duration. Thus, Hume argues: 'Tis not enough, that the action arise from the person, and have him for its immediate cause and author. This relation alone is too feeble and inconstant to be a foundation for these passions. It reaches not the sensible and thinking part, and neither proceeds from any thing durable in him, nor leaves any thing behind it; but passes in a moment, and as if it had never been. On the other hand, an intention shews certain qualities, which, remaining after the action is perform'd, connect it with the person, and facilitate the transition of ideas from one to the other (T 349). Now, as we have seen, Hume holds that 'approbation or blame... is... (shrink)

This paper outlines an analysis of the word ‘fun’, as it is used in everyday English sentences to describe various activities and asks why some things are labeled as fun while others seem unable to be properly described as such. One common unspoken idea, for example, is that a fun activity is deemed fun due to having a particular phenomenology, in a way that might be comparable to being in a ‘flow state’. Due to the trouble such psychological accounts of (...) fun have in explaining both the precise conditions of fun and also why some activities are thought to be enjoyable but not fun, a deflationary theory is instead introduced. This proposed alternative account suggests that the use of the word ‘fun’, when describing activities in English sentences, signals that the sentence is a generic sentence, an idea based on a semantic distinction made by Greg Carlson (1989). Further, it is argued that the words ‘pleasurable’ and ‘enjoyable’ are reserved for non-generic sentences, leaving the use of the word ‘fun’ to signal something akin to a grammar relation, rather than referring to a feeling or psychological state. (shrink)

Integrity is often conceived as a heroic ideal: the person of integrity sticks to what they believe is right, regardless of the consequences. In this article, I defend a conception of ordinary integrity, for people who either do not desire or are unable to be moral martyrs. Drawing on the writings of seventeenth century thinker Huang Zongxi, I propose refocussing attention away from an abstract ideal of integrity, to instead consider the institutional conditions whereby it is made safe not to (...) be servile. (shrink)

The Botany of Desire:. Plant's‐Eye View of the World. By Michael Pollan. 2001. New York: Random House. 271 pages. $24.95 (hardback). ISBN 0‐375‐50129‐0.

Twentieth-century action theory has concentrated on the relationship of intention to action, and thereby the relationship of belief as an occurrent state of the agent to the agent’s action. This stress on belief appears to be predicated on the view that our actions are primarily guided by our understanding of the relevant conditions of action, a view encouraged by the fact that we can and do attribute beliefs to ourselves and others to explain instances of the failure of an action (...) toachieve a desired outcome. I argue that, to the contrary, there is no compelling reason to conclude that such attributions imply that our actions are guided by occurrent beliefs. The alternative view offered is that our actions are typically guided by habit, but in cases of pragmatic failure we attribute putative prefailurebeliefs on the basis of the overall intention of action and relevant background understanding. (shrink)

This paper attempts a comprehensive account of the comparative merits of paracomplete and dialetheic approaches to the semantic paradoxes. It argues that aside from issues about conditionals, there can be no strong case for paracomplete approaches over dialetheic, or dialetheic over paracomplete, and indeed that in absence of conditionals, the two approaches are plausibly seen as notational variants. Graham Priest disagrees: many of his arguments favoring dialetheic solutions over paracomplete do not turn on issues about conditionals. The paper discusses his (...) arguments on these points in some detail. On the matter of conditionals, it argues that extant paracomplete approaches are far better than extant dialetheic approaches, a fact that traces in part to dialetheists having focused too heavily on “relevant logics”. It holds out hope for better dialetheic treatments of conditionals, but it also suggests that this is the one area where paracomplete approaches are inevitably better. (shrink)

Prompted by the centenary of the founding of Summerhill, in my contribution to this JOPE Suite on Democratic Education, I briefly explore both the admiring reciprocity and the subsidiary but significant differences of praxis between A.S. Neill and Alex Bloom, two remarkable pioneers of education in and for participatory democracy as a way of life. Because A.S. Neill's work is internationally renowned and Alex Bloom's has yet to re-establish the worldwide recognition it had in his own lifetime, my emphasis is (...) on the contribution of Alex Bloom, in large part because he is amongst the most radical pioneers of democratic education the UK state sector has ever known. To a significant degree, the aspirations and actualities of Bloom's work rebutted Neill's insistence that pioneers within the state sector of education could not innovate in ways that would significantly challenge the status quo. Indeed, Alex Bloom extended participatory democratic educational aspirations in ways which Neill did not. Most importantly, these not only entailed a commitment to community engagement, they did so in conditions of abject poverty and profound psychological trauma following the ravages of the Second World War London Blitz with its attendant evacuation and subsequent return to the ruins of their former homes.In the first section, I take as my starting point Alex Bloom's strongly supportive review of A.S. Neill's book The Problem Family and Neill's visit to Bloom's school in the East End of London, some five years later. Foregrounding the dialectic of practice and aspiration, I touch on some of the key issues that emerged for both Neill and Bloom at that time.Challenging Neill's later affirmation that the only significant freedom one can introduce into a state school is ‘a free attitude on the teacher's part, his or her being on the side of the child’ and his reported view that Bloom and others might be able to experiment in methods of teaching or ways of organising the timetable, ‘but not in methods of living’, the second section explores the nature and interrelationship of six key strands woven into the fabric of Alex Bloom's truly remarkable work that exemplified the grounded possibility and vibrant actuality of participatory democracy as a way of living and learning together that prefigures a more just, creative and caring form of human engagement.Locating the foundation of Alex Bloom's praxis within the 20th-century personalist philosophical tradition and its Adlerian psychological counterpart, the brief concluding section draws in particular on the work of John Macmurray who argues, as did Bloom in his own writing and his daily praxis, that ‘The first priority in education—if by education we mean learning to be human—is learning to live in personal relation to other people. Let us call it learning to live in community’. (shrink)

Population-based research is enhanced by biological measures, but biological sampling raises complex ethical issues. The third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3) will estimate the population prevalence of five sexually transmitted infections (STIs) (Chlamydia trachomatis, Neisseria gonorrhoeae, human papillomavirus (HPV), HIV and Mycoplasma genitalium) in a probability sample aged 16–44 years. The present work describes the development of an ethical approach to urine testing for STIs, including the process of reaching consensus on whether to return results. The (...) following issues were considered: (1) testing for some STIs that are treatable and for which appropriate settings to obtain free testing and advice are widely available (Natsal-3 provides all respondents with STI and healthcare access information), (2) limits on test accuracy and timeliness imposed by survey conditions and sample type, (3) testing for some STIs with unknown clinical and public health implications, (4) how a uniform approach is easier to explain and understand, (5) practical difficulties in returning results and cost efficiency, such as enabling wider STI testing by not returning results. The agreed approach, to perform voluntary anonymous testing with specific consent for five STIs without returning results, was approved by stakeholders and a research ethics committee. Overall, this was acceptable to respondents in developmental piloting; 61% (68 of 111) of respondents agreed to provide a sample. The experiences reported here may inform the ethical decision making of researchers, research ethics committees and funders considering population-based biological sampling. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Proceedings of the 1998 International Buddhist-Christian Theological EncounterBarbara Fields Bernstein and Brian MuldoonThe 1998 International Buddhist-Christian Theological Encounter, the continuation of the Cobb-Abe group, met in Indianapolis, Indiana, from May 1 to 3, 1998. Following the reading of a statement from Prof. Masao Abe in which he stated his regret at not being able to attend this important gathering and his hope that the encounter would begin to address (...) the global crises facing humankind today, John Cobb provided a brief history of the encounter for the new participants.First Paper: “Buddhism and Ecological Ethics,” by Chatsumarn KabilsinghProf. Kabilsingh began the morning discussion by focusing on the Buddhist doctrine of dependent origination, which reveals the interconnectedness of all life, as the starting place for fashioning a response to the environmental crisis. Suggesting that the inner and outer worlds are necessarily related (“As the king is, so are the sun and the moon”), she recommended adopting certain monastic practices to create a more harmonious relationship with nature. This provoked a discussion about the need for concrete action in addressing the behaviors not so much of individuals as of institutions. Institutions are uniquely human, embodying human imperfection even as they shape who we are. Noting that both traditions tended to focus on individual awakening or redemption, the question was asked how the principles of individual enlightenment or salvation could be applied to a community or institution. Further, there needs to be some practical balance between the two traditions’ extreme views of civilization, one of which places it in the heart of the forest (the East) and the other that finds it in the marbled city (the West). This balance, which must restore the tree of life to the heart of the city, will require a new model of institutions as living organisms rather than lifeless monoliths or random encounters. The balance of the morning’s discussion addressed the relationship between community and institutions and the “eschatological hope” of both Christianity and Buddhism. Chatsumarn concluded the session by highlighting the principle of interrelationship as the common ground between Christianity and Buddhism. [End Page 193]Second Paper: “Self and Nature in Christianity (and Buddhism),” by Sallie McfagueMcFague’s paper generated a spirited discussion about a series of paired concepts: Self-other, individual-community, sacramental-prophetic, absolute-relative, commonality-distinctiveness, vertical-horizontal, thinking-feeling, and scientific-aesthetic. The observation that ethics must be based on empirical data led to an exploration of the relationship of the relative (concrete reality that can be described) and the absolute (that which cannot be described, but may or may not be expressed through that which is particular) levels of truth. Interdependence, in the Buddhist model, includes an appreciation of the particularity of each thing while also recognizing the sameness of all. Speakers agreed that we must think both relatively and absolutely (although a new way of applying language to these concepts is needed). Meaningful environmental ethics must be grounded in the sacramental, in scientific particularity as perceived through the heart of the aesthete in intimate relationship with the natural world. But how could we move from these theoretical reflections into a closer encounter with that world? Stephanie Kaza would provide the needed vehicle in her comprehensive overview of the environmental crisis in the next session.Third Paper: “Overcoming the Grip of Consumerism,” by Stephanie KazaIt is fair to say that Kaza’s paper catalyzed provocative directions for thought during the three-day encounter, both because it provided the factual data from which an ethical discussion might proceed and because it focused the conversation on the role of consumerism in the environmental crisis. Prof. Kaza provided a telling comparison of consumerism and liberation practice as paths to self-realization and fulfillment, showing how the twelve links of dependent origination are integral to both paths. Breaking the grip of consumerism requires breaking any one of these links, like an addiction. This generated a spirited discussion about the relationship between enlightenment—whether “sudden” or otherwise—and consumerism and the relationship between consumerism and the more fundamental human tendency toward the acceptance of suffering over practices that promote liberation. While education was obviously critical for a... (shrink)

In this dissertation I offer a theory of intrinsic value based on contextualist principles drawn from the value theories of John Dewey and Alfred North Whitehead. The point of departure for the argument is the contextualist view that the qualitative patters representing in experience objects of states of affairs to which we attribute values provide necessary, but not sufficient, conditions to elicit particular valuations, and ground the evaluative judgments we make. The sufficient conditions for valuation include a broader context of (...) memories, beliefs, and peripheral qualia that combine in an integral experiential whole whose value is not reducible to that of its parts. It is first argued that value is, as G.E. Moore suggested, a simple, indefinable property. This property is emergent from experiential qualitative patterns in the sense that value is conditioned by the patterns, but is not itself a condition of them. An analysis of experiential qualitative pattern is then offered, which indicates how some parts of these patterns are focused on in evaluative judgment as crucial for the reproduction of particular values through practical action, whereas the influence of other parts is largely ignored, thus forming a relatively constant experiential context. Finally, a theory of evaluative judgment is offered based on contextualist principles. It is suggested that a contextualist theory can answer the challenge of value relativism by showing how evaluative judgment is 'position relative' rather than 'author relative'. That is, two subjects many come to different evaluative judgments on account of their differing positions or situations, while both may agree that the other's judgment is sound given his or her situation. (shrink)

ObjectivesA sample of women with persistent distress following breast cancer previously exhibited attentional bias away from supraliminally presented cancer-or threat-related information, responses consistent with avoidance coping, and showed negative interpretation bias. Here, we attempt to characterize the nature of supraliminal AB and interpretation bias in that sample of women by comparing against healthy controls.MethodsExtending our previous work, we compared AB patterns for supraliminally presented negatively valenced words and cancer-related information assessed by modified dot-probe tasks and negative interpretation bias assessed by (...) an ambiguous cue task between 140 BC women previously identified as featuring low-stable or persistent high anxiety and 150 age-matched non-BC healthy controls having HADS-defined low or high anxiety.ResultsAttentional avoidance of non-cancer-related negatively valenced words was seen among the anxious BC group, while heightened attention toward such words was seen in anxious healthy controls, F = 3.97, p = 0.009. However, all anxious women in both BC and healthy groups directed attention away from CRI under supraliminal conditions. Interpretation bias scores were significantly higher in BC women with high anxiety vs. healthy controls with high anxiety, F = 13.26, p < 0.001.ConclusionWomen with high anxiety generalized conscious attentional avoidance responses to negatively valenced stimuli, indicating a likely hypersensitivity to potential threat in ambiguous cues and exaggerated threat perception. This may cause maladaptive emotional regulation. Attention focus training, reducing threat salience or modifying threat appraisal, may help women alleviate anxiety levels after BC. (shrink)

The extent to which Pavlovian feed-forward mechanisms operate in primates is debatable. Monkeys and apes are long-lived, usually gregarious, and intelligent animals reliant on learned behavior. Learning occurs during play, mother-infant interactions, and grooming. We address these situations, and are hesitant to accept Domjan et al.'s reliance on Pavlovian conditioning as a major operant in primates.

Using simple stochastic models, we discuss how cooperative breeders, especially wasps and bees, can improve their productivity by reducing foraging work. In a harsh environment, where foraging is the main cause of mortality, such breeders achieve greater productivity by reducing their foraging effort below full capacity, and they may thrive by adopting cooperative breeding. This could prevent the population extinction of cooperative breeders under conditions where a population of lone breeders cannot be maintained.

There is an active debate within the field of phonology concerning the cognitive status of substantive phonetic factors such as ease of articulation and perceptual distinctiveness. A new framework is proposed in which substance acts as a bias, or prior, on phonological learning. Two experiments tested this framework with a method in which participants are first provided highly impoverished evidence of a new phonological pattern, and then tested on how they extend this pattern to novel contexts and novel sounds. (...) Participants were found to generalize velar palatalization (e.g., the change from [k] as in keep to [t⌢∫S] as in cheap) in a way that accords with linguistic typology, and that is predicted by a cognitive bias in favor of changes that relate perceptually similar sounds. Velar palatalization was extended from the mid front vowel context (i.e., before [e] as in cape) to the high front vowel context (i.e., before [i] as in keep), but not vice versa. The key explanatory notion of perceptual similarity is quantified with a psychological model of categorization, and the substantively biased framework is formalized as a conditional random field. Implications of these results for the debate on substance, theories of phonological generalization, and the formalization of similarity are discussed. (shrink)

Legal judgments are complex in nature and hence a brief summary of the judgment, known as a headnote , is generated by experts to enable quick perusal. Headnote generation is a time consuming process and there have been attempts made at automating the process. The difficulty in interpreting such automatically generated summaries is that they are not coherent and do not convey the relative relevance of the various components of the judgment. A legal judgment can be segmented into coherent chunks (...) based on the rhetorical roles played by the sentences. In this paper, a comprehensive system is proposed for labeling sentences with their rhetorical roles and extracting structured head notes automatically from legal judgments. An annotated data set was created with the help of legal experts and used as training data. A machine learning technique, Conditional Random Field, is applied to perform document segmentation by identifying the rhetorical roles. The present work also describes the application of probabilistic models for the extraction of key sentences and composing the relevant chunks in the form of a headnote. The understanding of basic structures and distinct segments is shown to improve the final presentation of the summary. Moreover, by adding simple additional features the system can be extended to other legal sub-domains. The proposed system has been empirically evaluated and found to be highly effective on both the segmentation and summarization tasks. The final summary generated with underlying rhetorical roles improves the readability and efficiency of the system. (shrink)

In this paper we consider conditional random quantities (c.r.q.’s) in the setting of coherence. Based on betting scheme, a c.r.q. X|H is not looked at as a restriction but, in a more extended way, as \({XH + \mathbb{P}(X|H)H^c}\) ; in particular (the indicator of) a conditional event E|H is looked at as EH + P(E|H)H c . This extended notion of c.r.q. allows algebraic developments among c.r.q.’s even if the conditioning events are different; then, for instance, we (...) can give a meaning to the sum X|H + Y|K and we can define the iterated c.r.q. (X|H)|K. We analyze the conjunction of two conditional events, introduced by the authors in a recent work, in the setting of coherence. We show that the conjoined conditional is a conditional random quantity, which may be a conditional event when there are logical dependencies. Moreover, we introduce the negation of the conjunction and by applying De Morgan’s Law we obtain the disjoined conditional. Finally, we give the lower and upper bounds for the conjunction and disjunction of two conditional events, by showing that the usual probabilistic properties continue to hold. (shrink)

Past research showed that the ability to focus on one’s internal states positively correlates with the self-regulation of behavior in situations that are accompanied by somatic and/or physiological changes, such as emotions, physical workload, and decision-making. The analysis of moral oriented decision-making can be the first step for better understanding the legal reasoning carried on by the main players in the field, as lawyers are. For this reason, this study investigated the influence of the decision context and interoceptive manipulation (...) on the moral decision-making process in the legal field gathering the responses of two groups of lawyers. A total of 20 lawyers were randomly divided into an experimental group, which was explicitly required to focus the attention on its interoceptive correlates, and a control group, which only received the general instruction to perform the task. Both groups underwent a modified version of the Ultimatum Game, where are presented three different moral conditions and three different offers. Results highlighted a significant increase of Acceptance Rate in those offers that should be considered more equal than fair or unfair ones, associated with a general increase of Reaction Times in the equal offers. Furthermore, the interoceptive manipulation oriented the Lawyers toward a more self-centered decision. This study shows how individual, situational, contextual, and interoceptive factors may influence the moral decision-making of lawyers. Future research in the so-called Neurolaw field is needed to replicate and expand current findings. (shrink)

The origin of the wave properties of matter is discussed from the point of view of stochastic electrodynamics. A nonrelativistic model of a charged particle with an effective structure embedded in the random zeropoint radiation field reveals that the field induces a high-frequency vibration on the particle; internal consistency of the theory fixes the frequency of this jittering at mc2/ħ. The particle is therefore assumed to interact intensely with stationary zeropoint waves of this frequency as seen from (...) its proper frame of reference; such waves, identified here as de Broglie's phase waves, give rise to a modulated wave in the laboratory frame, with de Broglie's wavelength and phase velocity equal to the particle velocity. The time-independent equation that describes this modulated wave is shown to be the stationary Schrödinger equation (or the Klein-Gordon equation in the relativistic version). In a heuristic analysis appled to simple periodic cases, the quantization rules are recovered from the assumption that for a particle in a stationary state there must correspond a stationary modulation.Along an independent and complementary line of reasoning, an equation for the probability amplitude in configuration space for a particle under a general potential V(x) is constructed, and it is shown that under conditions derived from stochastic electrodynamics it reduces to Schrödinger's equation. This equation reflects therefore the dual nature of the quantum particles, by describing simultaneously the corresponding modulated waveand the ensemble of particles. (shrink)

Appellate Court Modifications Extraction consists of, given an Appellate Court decision, identifying the proposed modifications by the upper Court of the lower Court judge’s decision. In this work, we propose a system to extract Appellate Court Modifications for Portuguese. Information extraction for legal texts has been previously addressed using different techniques and for several languages. Our proposal differs from previous work in two ways: our corpus is composed of Brazilian Appellate Court decisions, in which we look for a set of (...) modifications provided by the Court; and to automatically extract the modifications, we use a traditional Machine Learning approach and a Deep Learning approach, both as alternative solutions and as a combined solution. We tackle the Appellate Court Modifications Extraction task, experimenting with a wide variety of methods. In order to train and evaluate the system, we have built the KauaneJunior corpus, using public data disclosed by the Appellate State Court of Rio de Janeiro jurisprudence database. Our best method, which is a Bidirectional Long Short-Term Memory network combined with Conditional Random Fields, obtained an \ score of 94.79%. (shrink)

This is the first in a series of papers that present a new classical statistical treatment of the system of a charged harmonic oscillator (HO) immersed in an omnipresent stochastic zero-point (ZP) electromagnetic radiation field. This paper establishes the Gaussian statistical properties of this ZP field using Bourret's postulate that all statistical moments of the stochastic field plane waves at a given space-time point should agree with their corresponding quantized field vacuum expectations. This postulate is more (...) than adequate to derive the Planck spectrum classically via Boyer's and Theimer's methods, but it requires that the stochastic amplitude of each linearly polarized plane wave in the field contain two independent Gaussian random variables, not just a random phase as has sometimes been assumed. In the succeeding papers in the series, the total motion of a charged HO is described by a fully renormalized dipole-approximation Abraham-Lorentz equation. This leads without further approximation to the following major results concerning this stochastic electrodynamics (SED) of the HO: i) The ensemble-average Liouville equation for the oscillator-ZP field system in the presence of an arbitrary applied classical radiation field is exactly equivalent to the usual time-dependent Schrödinger equation supplemented by an explicit radiation reaction vector potential similar to that of the Crisp-Jaynes-Stroud theory; ii) this SED Schrödinger equation for the HO is incomplete, insmuch as there exists a companion equation that restricts initial conditions such that the corresponding Wigner phase-space distribution is always positive; iii) the wave function of the SED Schrödinger equation has thea priori significance of position probability amplitude; iv) first-order transition rates predicted for the HO by this theory agree with those predicted by quantum electrodynamics for resonance absorption and spontaneous emission, which occurs with no triggering necessary; and v) if SED is taken seriously, then the concepts of quantized energies and photons must be abandoned. (shrink)

Alternative theories to quantum mechanics motivate important fundamental tests of our understanding and descriptions of the smallest physical systems. Here, using spontaneous parametric downconversion as a heralded single-photon source, we place experimental limits on a class of alternative theories, consisting of classical field theories which result in power-dependent normalized correlation functions. In addition, we compare our results with standard quantum mechanical interpretations of our spontaneous parametric downconversion source over an order of magnitude in intensity. Our data match the quantum (...) mechanical expectations, and do not show a statistically significant dependence on power, limiting quantum mechanics alternatives which require power-dependent autocorrelation functions. (shrink)

The task of rhetorical role labeling is to assign labels (such as Fact, Argument, Final Judgement, etc.) to sentences of a court case document. Rhetorical role labeling is an important problem in the field of Legal Analytics, since it can aid in various downstream tasks as well as enhances the readability of lengthy case documents. The task is challenging as case documents are highly various in structure and the rhetorical labels are often subjective. Previous works for automatic rhetorical role (...) identification (i) mainly used Conditional Random Fields over manually handcrafted features, and (ii) focused on certain law domains only (e.g., Immigration cases, Rent law), and a particular jurisdiction/country (e.g., US, Canada, India). In this work, we improve upon the prior works on rhetorical role identification by proposing novel Deep Learning models for automatically identifying rhetorical roles, which substantially outperform the prior methods. Additionally, we show the effectiveness of the proposed models over documents from five different law domains, and from two different jurisdictions—the Supreme Court of India and the Supreme Court of the UK. Through extensive experiments over different variations of the Deep Learning models, including Transformer models based on BERT and LegalBERT, we show the robustness of the methods for the task. We also perform an extensive inter-annotator study and analyse the agreement of the predictions of the proposed model with the annotations by domain experts. We find that some rhetorical labels are inherently hard/subjective and both law experts and neural models frequently get confused in predicting them correctly. (shrink)