The basing relation is a relation that obtains between a belief and the evidence or reason for which it is held. It is a highly controversial question in epistemology how such a relation should be characterized. Almost all epistemologists believe that causation must play a role in articulating the notion of the basing relation. The causal account however faces the serious problem of the deviant causal chains. In this paper, I will be particularly looking at the philosophers’ appeal to the (...) notion of disposition as a way of excluding deviant chains. Having argued against such accounts, it will be suggested that, since the obtaining of the basing relation is what distinguishes propositional from doxastic justification, we may have a better grasp of this notion if we could clearly see how those two species of justification are related to one another. Drawing on earlier work, a dispositional account of propositional and doxastic justification is subsequently defended. It will be argued that such a view has the resources to resolve the problem of causal deviance, thus, providing an acceptable account of the notion of the basing relation. (shrink)

According to the thesis of epistemic conservatism it would be unreasonable to change one's beliefs in the absence of any good reasons. Although it is claimed that epistemic conservatism has informed and resolved a number of positions and problems in epistemology, it is difficult to identify a single representative view of the thesis. This has resulted in advancing a series of disparate and largely unconnected arguments to establish conservatism. In this paper, I begin by casting doubt on the claim of (...) widespread and genuine applications of the conservative policy. I then distinguish between three main varieties of epistemic conservatism, namely, differential, perseverance and generation conservatism Having evaluated various arguments that have been offered or may be considered on behalf of the conservative thesis, I close by concluding that those versions of the thesis that survive critical scrutiny fail to live up to the aspirations of the thesis as a substantive canon of rationality, that to the extent that principles of conservatism are epistemically promising, they are not plausible. While to the extent that they are plausible, they are not of much epistemic interest. (shrink)

Belief is generally thought to be the primary cognitive state representing the world as being a certain way, regulating our behavior and guiding us around the world. It is thus regarded as being constitutively linked with the truth of its content. This feature of belief has been famously captured in the thesis that believing is a purposive state aiming at truth. It has however proved to be notoriously difficult to explain what the thesis really involves. In this paper, I begin (...) by critically examining a number of recent attempts to unpack the metaphor. I shall then proceed to highlight an error that seems to cripple most of these attempts. This involves the confusion between, what I call, doxastic and epistemic goals. Finally, having offered my own positive account of the aim-of-belief thesis, I shall underline its deflationary nature by distinguishing between aiming at truth and hitting that target (truth). I end by comparing the account with certain prominent inflationary theories of the nature of belief. (shrink)

To undermine much of what we ordinarily claim to know, sceptics have often appealed to a principle (known as the principle of closure) according to which knowledge (justification) is closed under known entailment. In this paper after expounding the views of Stein, Klein and others, I shall argue that they all fail to take note of different contexts in which the principle of closure is applied. The relevance of the principle of closure for scepticism is then analyzed in the light (...) of, what I call, the infectious' character of epistemic contexts. I shall also highlight the similarities in the behavior of the concepts of justification and confirmation and appeal to certain solutions to the paradoxes of confirmation to provide a comprehensive account of the different instances of the principle of closure. (shrink)

Beliefs can be evaluated from a number of perspectives. Epistemic evaluation involves epistemic standards and appropriate epistemic goals. On a truthconducive account of epistemic justification, a justified belief is one that serves the goal of believing truths and avoiding falsehoods. Beliefs are also prompted by nonepistemic reasons. This raises the question of whether, say, the pragmatic benefits of a belief are able to rationalize it. In this paper, after criticizing certain responses to this question, I shall argue that, as far (...) as beliefs are concerned, justification has an essentially epistemic character. This conclusion is then qualified by considering the conditions under which pragmatic consequences of a belief can be epistemically relevant. (shrink)

This volume brings together a wide array of papers which explore, among other things, to what extent languages and cultures are variable with respect to the interactions around the event of death. Motivated by J. L. Mey's idea of the pragmeme, a situated speech act, the volume has both theoretical and practical implications for scholars working in different fields of enquiry. As the papers in this volume reveal, despite the terminological differences between various disciplines, the interactions around the event of (...) death serve to provide solace, not only to the dying, but also to the family and friends of the deceased, thus helping them to "accommodate" to the new state of affairs. (shrink)

According to a recent view, known as the 'pragmatic encroachment' thesis, an agent’s non-truth-related factors are relevant to the epistemic status of her beliefs. In particular, in addition to truth-related factors, practical factors are said to be relevant to the question whether or not true belief amounts to knowledge. Despite the intuitive appeal of the thesis, however, it is puzzling how practical factors can impact the truth-related factors that ground the epistemic status of one's beliefs. In this paper, I will (...) distinguish between a strong and a weak sense of the way in which practical factors are said to be thus relevant. Their differences are explicated in terms of the nature and the extent to which practical factors are said to impact the epistemic status of one's beliefs. I begin by considering a strong version of the thesis that suggests principles according to which the practical rationality of one's actions is a necessary condition on knowledge and justification. Having noted an inadequacy in the formulation of such principles, the arguments in their support are subsequently stated and criticized. Finally, I identify two modest versions of the thesis of pragmatic encroachment and argue that they, too, fail to explain how practical factors can bear on the epistemic status of one's beliefs. (shrink)

While recent debates over content externalism have been mainly concerned with whether it undermines the traditional thesis of privileged self‐knowledge, little attention has been paid to what bearing content externalism has on such important controversies as the internalism/externalism debate in epistemology. With a few exceptions, the question has either been treated as a side issue in discussions concerning the implications of content externalism, or has been dealt with in a cursory way in debates over the internalism/externalism distinction in justification theory. (...) In this paper, I begin by considering some of the arguments that have sought to address the question, focusing mainly on Boghossian's pioneering attempt in bringing the issue to the fore.1 It will be argued that Boghossian's attempt to exploit the alleged non‐inferentiality of self‐knowledge to show that content externalism and justification internalism are incompatible fails.In the course of this examination, I consider and reject as inadequate some recent responses to Boghossian's argument . I then turn to evaluating Chase's own proposed argument to show how content externalism can be brought to bear on the internalism/externalism debate in epistemology, and find it wanting. Finally, having discussed BonJour's terse remarks in this connection,3 I set out to present, what I take to be, the strongest argument for the incompatibility of content externalism and justification internalism while highlighting the controversial character of one of its main premises. Let us, however, begin by drawing the contours of the debate. (shrink)

Ensuring the trustworthiness of autonomous systems and artificial intelligence is an important interdisciplinary endeavour. In this position paper, we argue that this endeavour will benefit from technical advancements in capturing various forms of responsibility, and we present a comprehensive research agenda to achieve this. In particular, we argue that ensuring the reliability of autonomous system can take advantage of technical approaches for quantifying degrees of responsibility and for coordinating tasks based on that. Moreover, we deem that, in certifying the legality (...) of an AI system, formal and computationally implementable notions of _responsibility_, _blame_, _accountability_, and _liability_ are applicable for addressing potential responsibility gaps (i.e. situations in which a group is responsible, but individuals’ responsibility may be unclear). This is a call to enable AI systems themselves, as well as those involved in the design, monitoring, and governance of AI systems, to represent and reason about who can be seen as responsible in prospect (e.g. for completing a task in future) and who can be seen as responsible retrospectively (e.g. for a failure that has already occurred). To that end, in this work, we show that across all stages of the design, development, and deployment of trustworthy autonomous systems (TAS), responsibility reasoning should play a key role. This position paper is the first step towards establishing a road map and research agenda on how the notion of responsibility can provide novel solution concepts for ensuring the _reliability_ and _legality_ of TAS and, as a result, enables an effective embedding of AI technologies into society. (shrink)

Recent discussions of externalism about mental content have been dominated by the question whether it undermines the intuitively plausible idea that we have knowledge of the contents of our thoughts. In this article I focus on one main line of reasoning (the so-called 'slow switching argument') for the thesis that externalism and self-knowledge are incompatible. After criticizing a number of influential responses to the argument, I set out to explain why it fails. It will be claimed that the argument trades (...) on an ambiguity, and that only by incorporating certain controversial assumptions does it stand a chance of establishing its conclusion. Finally, drawing on an analogy with Benacerraf's challenge to Platonism, I shall offer some reasons as to why the slow switching argument fails to reveal the real source of tension between externalism and privileged self-knowledge. (shrink)

It has been claimed that friendship not only involves partial treatment of one's friends but that it also involves some degree of doxastic partiality towards them. Taking these claims as their starting points, some philosophers have argued that friendship not only involves such partiality but that this is also what is normatively required. This gives rise to the possibility of conflict between the demands of friendship on the one hand and the demands of epistemic norms on the other. In this (...) paper, I consider some of the responses to this claim and show why they fail. I distinguish between different grades of doxastic partiality and explain why, although low grades of doxastic partiality fall within the bounds of the standard epistemic norm, the higher grades might infringe such norms. I conclude with an explanation of a fundamental intuition that seems to lie at the heart of the thesis of epistemic partiality. (shrink)

_ Source: _Page Count 19 Epistemic akrasia refers to the possibility of forming an attitude that fails to conform to one’s best judgment. In this paper, I will be concerned with the question whether epistemic akrasia is rational and I will argue that it is not. Addressing this question, in turn, raises the question of the epistemic significance of higher-order evidence. After examining some of the views on this subject, I will present an argument to show why higher-order evidence is (...) relevant to the epistemic status of the pertinent first-order beliefs. This helps to show why a standard argument for the rationality of epistemic akrasia does not work. Finally, I shall try to show how considerations involving Davidson’s theory of radical interpretation bear on the question of the rationality of epistemic akrasia. (shrink)

RÉSUMÉMalgré son usage très répandu, l'inférence à la meilleure explication a souvent été considérée avec suspicion par des théoriciens d'allégeances diverses. On lui a reproché à maintes reprises defaire reposer son recours à la simplicité et ses autres vertus explicatives sur des présuppositions métaphysiques douteuses. J'aborde ces questions, dans le présent article, dans le contexte d'une discussion large de l'usage de l'IME pour fonder notre croyance au monde extérieur. Distinguant entre la légitimité et l'efficacité de l'IME, je soutiendrai qu'elle constitue (...) bien une forme légitime d'inférence, mais que son efficacité dépend de la fonction de la théorie de la connaissance qui la supporte. (shrink)

_ Source: _Page Count 19 Epistemic akrasia refers to the possibility of forming an attitude that fails to conform to one’s best judgment. In this paper, I will be concerned with the question whether epistemic akrasia is rational and I will argue that it is not. Addressing this question, in turn, raises the question of the epistemic significance of higher-order evidence. After examining some of the views on this subject, I will present an argument to show why higher-order evidence is (...) relevant to the epistemic status of the pertinent first-order beliefs. This helps to show why a standard argument for the rationality of epistemic akrasia does not work. Finally, I shall try to show how considerations involving Davidson’s theory of radical interpretation bear on the question of the rationality of epistemic akrasia. (shrink)

Any theory of epistemic justification must address the question of what its aim is and why we value it. The almost general consensus among epistemologists is that there is an intimate link between justification and truth. However, the standard formu- lation of this connection (as the truth-directed goal of maximizing true belief and minimizing false belief) has been increasingly challenged in recent times on the ground that it leaves no room for justified false beliefs and unjustified true beliefs. In this (...) paper, I shall argue for a diachronic version of the truth-directed goal in the face of the objections raised against it. To provide further support for this conclusion, I criticize Foley’s synchronic account of the truth-directed goal by showing how it is undermined by certain consequences of his egocentric theory of epistemic rationality. (shrink)

Although it is widely recognized that perceptual experience confers justification on the beliefs it gives rise to, it is unclear how its epistemic value should be properly characterized. Liberals hold, and conservatives deny, that the justification conditions of perceptual beliefs merely involve experiences with the same content. The recent debate on this question has, however, seen further fragmentations of the positions involved with the disputants seeking to identify intermediate positions between liberalism and conservatism. In this paper, I suggest a framework (...) to account for the differences and similarities of the positions within the liberalism/conservatism debate. More importantly, I suggest that, instead of focusing on one particular species of conservatism, we should recognize varieties of conservatism. My conclusion is that no theory of justification need be conservative or liberal tout court. Whether a theory of justification is liberal or conservative depends on which dimension of evaluation is taken to be salient. The implications of this finding for the liberalism/conservatism debate are then investigated. (shrink)

While there is general agreement that knowing a proposition p involves knowing that nothing incompatible with p is true, there is much controversy over the range of possibilities that have to be ruled out if knowledge claims are to be sustained. With the failure of attempts on behalf of commonsense to delimit the range of counterpossibilities in order to leave room for knowledge, some theorists, most notably Adler, have sought to introduce a set of so-called ‘universalizability principles’ that require us (...) to extend our epistemic judgments about particular beliefs to those held under similar circumstances. These principles, it is claimed, not only identify which counterpossibilities must be countenanced, but also have enough power to generate skeptical results. In this paper I distinguish between minimalist and full-blooded versions of the universalizability thesis, and argue that the thesis can have skeptical consequences only when conjoined with certain epistemically significant assumptions. This is followed by a discussion of the epistemic import of the minimalist version of the thesis by considering how it can arise naturally in epistemic contexts, in virtue of either being semantically linked to the concept of justification or as a result of enforcing certain constraints on its application. (shrink)

Theoretical reasoning (inference) is a conscious personal‐level activity and a causal process. It is the process of revising one's beliefs for a reason whereby some of our beliefs cause or result in other beliefs. But inference is more than mere causation. This raises the question of what exactly distinguishes theoretical reasoning from mere causal processes. Paul Boghossian has located the distinguishing feature of inference in, what he calls, the “taking condition” requirement (TC). It turns out, however, that all attempts to (...) explain this notion fail. In this paper, I shall offer an indirect argument for the taking condition grounded in a specific account of the structure of epistemic reasons that distinguishes two levels of epistemic normativity, namely, the possession and justification levels. I show how such an account can legitimize the role of (TC) in reasoning and deflect the standard objections raised against it. Finally, I explain how this proposal naturally accommodates the defeasibility of reasoning. (shrink)

Abstract: Moore's sentences of the form "P & ∼I believe that P" and "P & I believe that ∼P" are thought to be paradoxical because they cannot be properly asserted despite being possibly true. Solutions to the paradox usually explain the oddity of such sentences in terms of phenomena as diverse as the pragmatics of speech acts, nature of belief or justification. In this paper I shall argue that despite their seemingly different approaches to the problem, there is a single (...) strategy that underlies all such proposals. Having criticized these suggestions, I shall defend my own solution according to which Moorean sentences are defective not because of some associated logical impropriety but because their assertion violates a certain interpretive constraint, viz., the principle of charity, on an adequate theory of meaning. (shrink)

Crispin Wright has advanced a number of arguments to show that, in addition to evidential warrant, we have a species of non-evidential warrant, namely, “entitlement”, which forms the basis of a particular view of the architecture of perceptual justification known as “epistemic conservatism”. It is widely known, however, that Wright's conservative view is beset by a number of problems. In this article, I shall argue that the kind of warrant that emerges from Wright's account is not the standard truth-conducive justification, (...) but what is known as the deontological conception of justification. It will be argued that the deontological justification has features that make it a better candidate for representing a conservative architecture. These results will be reinforced by showing how the deontological framework can make better sense of a recent theory of justified belief that takes its inspiration from Wright's conservative account. Thus understood, we may see the liberalism–conservatism controversy as actually an extension of the older debate over which conception of justification, truth-conducive or deontological, can best represent the epistemic status of our belief-forming practices. (shrink)

Transcendental arguments have been described as disclosing the necessary conditions of the possibility of phenomena as diverse as experience, self-knowledge and language. Although many theorists saw them as powerful means to combat varieties of skepticism, this optimism gradually waned as many such arguments turned out, on examination, to deliver much less than was originally thought. In this paper, I distinguish between two species of transcendental arguments claiming that they do not actually constitute distinct forms of reasoning by showing how they (...) collapse into more familiar inferences. I then turn to the question of their epistemic potentials which I argue to be a function of both their types as well as their targets. Finally, these claims are reinforced by uncovering links between certain recent claims about the efficacy of transcendental arguments and the so-called Moore’s paradox. (shrink)

Epistemic reasons are meant to provide justification for beliefs. In this paper, I will be concerned with the requirements that have to be met if reasons are to discharge this function. It is widely recognized, however, that only possessed reasons can justify beliefs and actions. But what are the conditions that have to be satisfied in order for one to possess reasons? I shall begin by motivating a particular condition, namely, the ‘treating’ requirement that has been deemed to be necessary (...) for possessing reasons. In Sect. 1, I explain and criticize some of the existing accounts of the treating requirement for reason-possession. In Sect. 2, I will suggest a dispositional account of reason-possession in which the treating condition features prominently. Section 3 will deal with the some of the consequences of this account for such issues as the structure of epistemic defeat, the immediacy of perceptual justification and logical knowledge. (shrink)

Emotions play vital roles in our psychology and our lives. They also often form the basis of our evaluative beliefs. On some views, emotions, like perceptions, justify the beliefs to which they give rise. It has, however, been claimed that, unlike perceptions, emotions are merely proxies for the genuine reasons that are constituted by their cognitive bases. In this paper, I argue that this objection arises from the failure to notice the difference between the notions of ‘reasons there are’ and (...) ‘possessed reasons’. After developing an account of what it is to possess a reason, it will be argued that emotions do constitute genuine reasons for the evaluative beliefs that result from them. To support this claim, a distinction is made between thinner and thicker descriptions of the same event, where a thinner description may be in terms of the emotional response, whereas a thicker description may be in terms of possessing a normative reason to hold a belief or to act. (shrink)

One of the well-known theses of Alvin Plantinga’s epistemology of religious belief is his claim about the noetic effects of sin. But Plantinga does not clearly spell out how sin functions to undermine or weaken the believer’s natural knowledge of God. In this paper, I want to suggest a dispositional gloss on his account of religious epistemology that properly identifies the epistemic role of sin and other factors that may undermine knowledge of God. It will be further argued that the (...) dispositional framework provides us with a principled basis for deriving some of the main contours of Plantinga’s general epistemology. (shrink)

Current responses to the question of how one should adjust one’s beliefs in response to peer disagreement have, in general, formed a spectrum at one end of which sit the so-called ‘conciliatory’ views and whose other end is occupied by the ‘steadfast’ views. While the conciliatory views of disagreement maintain that one is required to make doxastic conciliation when faced with an epistemic peer who holds a different stance on a particular subject, the steadfast views allow us to maintain our (...) confidence in our relevant beliefs. My aim in this paper is not to adjudicate between these views. Rather, I shall focus on a particular strategy, namely, denying the appearance of epistemic symmetry between peers, that the steadfast views standardly invoke in support of their position. Having closely examined certain representative examples of the steadfast approach, I will argue that this strategy is fundamentally flawed. (shrink)

In this paper, I shall examine William Alston's influential view that the cognitive element in religious faith should be identified with ‘acceptance’ rather than ‘belief’. Although I am sympathetic to Alston's reluctance to regard belief as essential to faith, I shall argue that one can redescribe the cases that Alston invokes in support of his claim in terms of the standard notion of degrees‐of‐belief without loss. It will be further argued that, given Alston's constraints, his notion of acceptance, if not (...) identical to belief, is at least a species of belief. (shrink)

We often decide whether a state of affairs is possible by trying to mentally depict a scenario where the state in question obtains . These mental acts seem to provide us with an epistemic route to the space of possibilities. The problem this raises is whether conceivability judgments provide justification-conferring grounds for the ensuing possibility-claims . Although the question has a long history, contemporary interest in it was, to a large extent, prompted by Kripke's utilization of modal intuitions in the (...) course of propounding certain influential theses in the philosophy of language and mind. The interest has been given a further boost by the recent two-dimensional approach to the Kripkean framework. In this paper, I begin by providing a detailed examination of a most recent attempt to defend the thesis and argue that it is unsuccessful. This is followed by presenting my own gloss on Kripke's explanation of the illusions of contingency and I close by raising a general problem intended to undermine the prospects for a successful defense of the thesis. (shrink)

Compassion, as an indicator for quality care, is highly valued by patients and healthcare professionals. Compassionate care is considered a moral dimension of nursing practice and an essential component of high quality care. This study aimed to answer these questions: What are the facilitators and barriers of providing compassionate nursing care in the clinical setting? Which strategies do nurses use to provide compassionate care? What is the specific model of compassionate care for the nursing context? A grounded theory approach was (...) used in this study. A total of 21 nurses working in diverse clinical settings participated in the study. Purposive and theoretical sampling was used to select the participants. Data were collected by in-depth face to face interviews and analyzed by the constant comparative method. Ethical approval was gained from the Ethical Review Board of Tabriz University of Medical sciences. The analysis resulted in the development of three main themes: contextual factors affecting compassionate care, the compassionate care actions, and the consequences of compassionate care. The main dimensions of compassionate care are demonstrated in a Compassionate Nursing Care Model. Nurses’ ability on providing compassionate care is influenced by individual and organizational factors that may facilitate or inhibit this type of care. Leadership and nurse managers should remove the barriers which diminish the nurses’ ability to provide compassionate care and support them to engage in compassionate care programs. Identifying and recruiting compassionate nurses, developing their compassionate capacity, and providing role models of compassion could improve the flourishing of person-centered and compassionate care in clinical settings. The Compassionate Nursing Care Model provides a model to guide nursing care and research. (shrink)

This article is concerned with the question of the nature of the epistemic liaison between experience and belief. The problem, often known as the problem of nondoxastic justification, is to see how a causal transition between experience and belief could assume a normative dimension, that is, how perceptual experience serves to justify beliefs about the world. Currently a number of theories have been proposed to resolve this problem. The article considers a particular solution offered by Tyler Burge which, among other (...) things, introduces a new type of positive epistemic status or warrant, namely, entitlement. It contends that Burge's notion of entitlement cannot be of any help in resolving the problem of nondoxastic justification. Burge's account is compared and contrasted with other, similar, approaches to the problem of nondoxastic justification. (shrink)

This study set out to investigate intellectual domains as well as the use of measurement and validation methods in language assessment research and second language acquisition published in English in peer-reviewed journals. Using Scopus, we created two datasets: a dataset of core journals consisting of 1,561 articles published in four language assessment journals, and a dataset of general journals consisting of 3,175 articles on language assessment published in the top journals of SLA and applied linguistics. We applied document co-citation analysis (...) to detect thematically distinct research clusters. Next, we coded citing papers in each cluster based on an analytical framework for measurement and validation. We found that the focus of the core journals was more exclusively on reading and listening comprehension assessment, facets of speaking and writing performance such as raters and validation, as well as feedback, corpus linguistics, and washback. By contrast, the primary focus of assessment research in the general journals was on vocabulary, oral proficiency, essay writing, grammar, and reading. The secondary focus was on affective schemata, awareness, memory, language proficiency, explicit vs. implicit language knowledge, language or semantic awareness, and semantic complexity. With the exception of language proficiency, this second area of focus was absent in the core journals. It was further found that the majority of citing publications in the two datasets did not carry out inference-based validation on their instruments before using them. More research is needed to determine what motivates authors to select and investigate a topic, how thoroughly they cite past research, and what internal and external factors lead to the sustainability of a Research Topic in language assessment. (shrink)

Doxastic Conservatism We are creatures with clear cognitive limitations. Our memories are finite and there is a limit to the kinds of things we can store and retrieve. We cannot, for example, remember the justification or evidence for many of our beliefs. Moreover, in response to our limited cognitive resources, we generally tend to maintain … Continue reading Doxastic Conservatism →.

It has been argued that just as, say, prejudice or wishful thinking can generate ill-founded beliefs, the same is true of experiences. The idea is that the etiology of cognitively penetrated experiences can downgrade their justificatory force. This view, known as the Downgrade Principle, seems to be compatible with both internalist and externalist conceptions of epistemic justification. An assessment of the credentials of the Downgrade Principle is particularly important in view of the fact that not all cases of cognitive penetration (...) are epistemically malignant. There are good and bad cases of cognitive penetration. I argue that a proper assessment of the Downgrade Principle will have to address two fundamental questions. I identify two general ways of responding to these questions and show why they fail. It will be maintained that an explanationist conception of justification has a better chance of accounting for the distinction between good and bad cases of cognitive penetration. The Downgrade Principle is then discussed in the context of the extended cognition thesis. In particular, I look at the sensorimotor theory of perception, as a way of broadening the scope of to include conscious perceptual experience, that sees senses as ways of exploring the environment mediated by different patterns of sensorimotor contingency. I suggest possible ways in which one could distinguish between good and bad cases of cognitive penetration on such a view compatible with the explanationist view of epistemic justification. (shrink)

Theories of epistemic justification are usually described as belonging to either deontological or nondeontological categories of justification with the former construing the concept of justification as involving the fulfillment of epistemic duty. Despite being the dominant view among traditional epistemologists, the deontological conception has been subjected to severe criticisms in the current literature for failing, among others, to do justice to the (alleged) truth-conducive character of epistemic justification. In this paper I set out to show that there is something deeply (...) unsatisfying about the way these different conceptions of justification are usually introduced and contrasted with each other leaving it unclear just what it is that renders a particular conception deontological. In particular I look at Alston's treatment of the issue, and show that his reasons for rejecting the deontological conception involve question-begging assumptions demonstrating, at best, the possibility of its divergence from truth-conductive justification. Far from being able to settle the issue one way or another, the arguments, I shall suggest actually seem to show some sort of tolerant pluralism in justification theory to be a live option. (shrink)

Suspended sediment modeling is an important subject for decision-makers at the catchment level. Accurate and reliable modeling of suspended sediment load is important for planning, managing, and designing of water resource structures and river systems. The objective of this study was to develop artificial intelligence- based ensemble methods for modeling SSL in Katar catchment, Ethiopia. In this paper, three single AI-based models, that is, support vector machine, adaptive neurofuzzy inference system, feed-forward neural network, and one conventional multilinear regression modes, were (...) used for SSL modeling. Besides, four different ensemble methods, neural network ensemble, ANFIS ensemble, weighted average ensemble, and simple average ensemble, were developed by combining the outputs of the four single models to improve their predictive performance. The study used two-year discharge and SSL data for training and verification of the applied models. Determination coefficient and root mean square error were used to evaluate the performances of the developed models. Based on the performance measure results, the ANFIS model provides higher efficiency than the other developed single models. Out of all developed ensemble models, the nonlinear ANFIS model combination method was found to be the most accurate method and could increase the efficiency of SVM, MLR, ANFIS, and FFNN models by 19.02%, 37%, 9.73%, and 16.3%, respectively, at the verification stage. Overall, the proposed ensemble models in general and the AI-based ensemble in particular provide excellent performance in SSL estimation. (shrink)

Considering the three intrinsic components of streamflow time series, the overall performance of the streamflow modeling tool is associated with the correct estimation of these components. In this study, a new hybrid method based on the wavelet transform as a multiresolution forecasting tool and exponential smoothing method, with two presented scenarios, was introduced. To this end, the performance of the proposed method was investigated versus four conventional methods of the autoregressive integrated moving average, ES ad-hoc, artificial neural network, and wavelet-ANN (...) for daily and monthly streamflow modeling of West Nishnabotna and Trinity River watersheds with different hydro-geomorphological conditions. In the presented WES technique, firstly, WT is employed for decomposing the observed signal to one approximation and more diverse components of subseries. Then, for the first scenario, only two subseries are introduced to the model as input parameters; however, for the second scenario, decomposed subseries are separately used as the inputs of ES models. The obtained results indicated that combining WT with the ES method and ANN led to more accurate modeling. The proposed methodology that used all decomposed subseries separately improved the efficiency of models up to 30% and 10% for the daily dataset and up to 88% and 57% for the monthly dataset, respectively, for the West Nishnabotna and Trinity Rivers. (shrink)

The idea that truth is the aim of justification is one that is often defended by theorists who uphold different views about the nature of epistemic justification. Despite its prevalence, however, it is not quite clear how one is to cash out the metaphor that justification aims at truth. Some theorists, for example, have objected that the thesis would leave no room for justified false beliefs and unjustified true beliefs. In this paper, I offer an account of what it is (...) for justification to aim at truth using the recently revived idea of difference-making according to which facts often make a difference to other facts. It will be argued that, thus understood, the thesis can illuminate a number of controversial debates in epistemology and that, given its explanatory power, it has a lot to recommend it. (shrink)