When people engage in conversation, they tailor their utterances to their conversational partners, whether these partners are other humans or computational systems. This tailoring, or adaptation to the partner takes place in all facets of human language use, and is based on a mental model or a user model of the conversational partner. Such adaptation has been shown to improve listeners' comprehension, their satisfaction with an interactive system, the efficiency with which they execute conversational tasks, and the likelihood of achieving (...) higher level goals such as changing the listener's beliefs and attitudes. We focus on one aspect of adaptation, namely the tailoring of the content of dialogue system utterances for the higher level processes of persuasion, argumentation and advice-giving. Our hypothesis is that algorithms that adapt content for these processes, according to a user model, will improve the usability, efficiency, and effectiveness of dialogue systems. We describe a multimodal dialogue system and algorithms for adaptive content selection based on multi-attribute decision theory. We demonstrate experimentally the improved efficacy of system responses through the use of user models to both tailor the content of system utterances and to manipulate their conciseness. (shrink)

Peirce’s doctrine of God has scarcely been studied at all. This is surprising because his own naturally religious temperament, his desire for philosophical completeness and the influence of Kant, all led him to give an important place to theistic speculation in his philosophy. It is true that few parts of his philosophy reveal more than the fragmentary and unfinished nature of his thinking. This however does not take away from its importance both for the interpretation of his philosophy and for (...) the evaluation of its contribution. In this paper I want to examine his doctrine of God mainly in order to discover and outline what views he held in the matter. Such examination is an essential preliminary to any consideration of the value of his theistic thinking. Moreover, an objective exposition is already the best beginning of evaluation. However it is impossible to undertake this kind of examination without a careful search into various corners of his writings and a meticulous and slightly laboured presentation of one’s findings. But I think that the patience involved in such research has a rich reward. (shrink)

In a previous article an elementary semantic analysis showed that, logically, analogical terms and expressions must be treated as homonyms, though of a special type. The latter qualification is necessitated by the concomitant element of similarity that is found to be involved in all comparisons of the analogical type. Further, it was pointed out that the special types of similarity in question cannot be isolated through a purely semantic analysis. This is, in particular, a consequence of the fact that analogy (...) is itself an analogical notion and term. The kind of similarity involved may, therefore, vary in the different forms of analogy and it may prove impossible to abstract from these something like a common element, e.g., a particular type of resemblance. This implies that the full philosophical significance of a particular form of analogy can be gleaned only from a contextual examination of its rôle in relation to a particular problem. Nevertheless, some significant conclusions may emerge from a partial analysis of certain forms of resemblance which are usually associated with analogy. (shrink)

Recent policy developments in the area of livestock husbandry have suggested that, from the perspective of optimizing animal welfare, new animal husbandry systems should be developed that provide opportunities for livestock animals to be raised in environments where they are permitted to engage in “natural behavior.” It is not known whether consumers regard animal husbandry issues as important, and whether they differentiate between animal husbandry and other animal welfare issues. The responsibility for the development of such systems is allocated jointly (...) between farmers, regulators, different actors in the food chain, and consumers. This research focuses on understanding consumer attitudes and preferences regarding the development and introduction of such systems, to ensure that they are acceptable to consumers as well as producers, regulators, and scientists. Consumer perceptions of animal welfare and animal husbandry practices were evaluated using quantitative consumer survey, which focused on two animal husbandry issues – farmed pigs and farmed fish. Following pilot work, 1000 representative Dutch consumers were sampled about their attitudes to either pig or fish husbandry. The results indicated that consumers think about animal welfare in terms of two broad categories related to their health and living environment, but do not think about welfare issues at a more detailed level. Greater concern was expressed about the welfare of pigs compared to fish. Consumer trust in labeling also emerged as an important issue, since consumers need to trust different food chain actors with responsibility for promoting animal welfare, and are reluctant to consider the details of animal husbandry systems. As a consequence, a transparent, enforceable, and traceable monitoring system for animal welfare friendly products is likely to be important for consumers. (shrink)

Recent policy developments in the area of livestock husbandry have suggested that, from the perspective of optimizing animal welfare, new animal husbandry systems should be developed that provide opportunities for livestock animals to be raised in environments where they are permitted to engage in “natural behavior.” It is not known whether consumers regard animal husbandry issues as important, and whether they differentiate between animal husbandry and other animal welfare issues. The responsibility for the development of such systems is allocated jointly (...) between farmers, regulators, different actors in the food chain, and consumers. This research focuses on understanding consumer attitudes and preferences regarding the development and introduction of such systems, to ensure that they are acceptable to consumers as well as producers, regulators, and scientists. Consumer perceptions of animal welfare and animal husbandry practices were evaluated using quantitative consumer survey, which focused on two animal husbandry issues – farmed pigs and farmed fish. Following pilot work, 1000 representative Dutch consumers were sampled about their attitudes to either pig or fish husbandry. The results indicated that consumers think about animal welfare in terms of two broad categories related to their health and living environment, but do not think about welfare issues at a more detailed level. Greater concern was expressed about the welfare of pigs compared to fish. Consumer trust in labeling also emerged as an important issue, since consumers need to trust different food chain actors with responsibility for promoting animal welfare, and are reluctant to consider the details of animal husbandry systems. As a consequence, a transparent, enforceable, and traceable monitoring system for animal welfare friendly products is likely to be important for consumers. (shrink)

Alison Gopnik and Andrew Meltzoff have argued for a view they call the 'theory theory': theory change in science and children are similar. While their version of the theory theory has been criticized for depending on a number of disputed claims, we argue that there is a fundamental problem which is much more basic: the theory theory is multiply ambiguous. We show that it might be claiming that a similarity holds between theory change in children and (i) individual scientists, (ii) (...) a rational reconstruction of a Superscientist, or (iii) the scientific community. We argue that (i) is false, (ii) is non-empirical (which is problematic since the theory theory is supposed to be a bold empirical hypothesis), and (iii) is either false or doesn't make enough sense to have a truth-value. We conclude that the theory theory is an interesting failure. Its failure points the way to a full, empirical picture of scientific development, one that marries a concern with the social dynamics of science to a psychological theory of scientific cognition. (shrink)

By using a tomographic approach to quantum states, we rise the problem of nonlocality within a single particle (single degree of freedom). We propose a possible way to look for such e®ects on a qubit. Although a conclusive answer is far from being reached, we provide some re°ections on the foundational ground.

Both the recent 'Warner' review of the UK research ethics committee (REC) system and the subsequent consultation document produced by the Central Office for Research Ethics Committees (COREC) emphasize the need to distinguish 'research' from what might be termed 'non-research'. This is to be determined through a process of filtering or 'triage', the intention being that RECs will avoid considering proposals with 'no material ethical issues'. In this paper we argue that trying to distinguish 'true' research from other projects is (...) counterproductive, misleading and potentially unethical. Our case is built around three assertions: (1) the distinction between research and non-research is imprecise; (2) both medical research and non-research can generate similar ethical issues; and (3) projects should be judged according to what they involve, not how they are labelled. (shrink)

Developing an intellectualist account of skill, Stanley and Williamson define skill as a kind of disposition to action-guiding knowledge. The present paper challenges their definition of skill. While we don’t dispute that skill may consist of a cognitive, a dispositional, and an action-guiding component, we argue that Stanley and Williamson’s account of each component is problematic. In the first section, we argue, against Stanley and Williamson, that the cognitive component of skill is not a case of propositional knowledge-wh, which is (...) typically indexical. In the second section, we seek to show that Stanley and Williamson face difficulties in arguing for a generic claim about skill as a kind of disposition, and they fail to defend intellectualism about skill based on the dispositional account. In the third section we argue that Stanley and Williamson need a more detailed account of the action-guiding aspect of skill to avoid several difficulties, including a threat of a regress. We close with some lessons for the debate over intellectualism and anti-intellectualism about skill. (shrink)

The considerable attention to financial interests in clinical research has focused mostly on academic medical centers, even though the majority of clinical research is conducted in community practice settings. To fill this gap, this article maps the practices and policies in 73 community hospitals and several hundred specialized facilities around the country for reviewing clinical investigators’ financial relationships with research sponsors. Community hospitals face a substantially different mix of issues than academic medical centers do because their physician researchers are usually (...) not employees, and more of their studies are later-phase, multicenter trials. Accordingly, community physicians stand to benefit personally from per capita payments, but they tend to have less direct influence over research findings when compared with their academic peers. These and other contrasts require separate guidance for community-based organizations that takes into account their particular needs, circumstances, and institutional capacities. (shrink)

[full article, abstract in English; abstract in Lithuanian] Armstrong’s theory of laws and causation may be articulated as something like the following, which we may refer to as the received view: “Laws are intrinsic higher-order relations of ensuring between properties. The instantiation of laws is identical with singular causation. This identity is a posteriori.” Opponents and advocates of this view, believe that it may fairly and correctly be attributed to Armstrong. I do not deny it; instead I seek to reconsider (...) the received view, specifically by treating it as a part of Armstrong’s metaphysics. The main features that should concern us are truthmaker theory and the formal account of the constitutive parts of states of affairs. I also discuss Bird’s ultimate argument against Armstrong and show how its impact is weakened by this proper reading. (shrink)

Online education lacks the moral and ethical engagement as well as the empathic interactions that are essential and integral to true liberal education, including business. While the online venue can provide useful information and put libraries at the hands of the student or employee, there is an implicit lack of focus on the sacredness and centrality of the person, his or her values, attitudes, needs, and expectations. The focus of online education is on the delivery of data, not the student’s (...) engagement with the material or the process. Critically absent from online education is the ability to explore the transformation of data as it changes, first to information, then to knowledge, and finally to wisdom, within each person. Finally, absent is the ability to raise the level of abstraction. Since all needs to be measurable in concrete terms in online education, we are left with the language of metrics, such as deliverables, outcomes, inputs, and outputs. Where is the person in all of this? Where is the focus on the moral compass that is so necessary in any type of education? (shrink)

The prospect of using cell-based interventions to treat neurological conditions raises several important ethical and policy questions. In this target article, we focus on issues related to the unique constellation of traits that characterize CBIs targeted at the central nervous system. In particular, there is at least a theoretical prospect that these cells will alter the recipients' cognition, mood, and behavior—brain functions that are central to our concept of the self. The potential for such changes, although perhaps remote, is cause (...) for concern and careful ethical analysis. Both to enable better informed consent in the future and as an end in itself, we argue that early human trials of CBIs for neurological conditions must monitor subjects for changes in cognition, mood, and behavior; further, we recommend concrete steps for that monitoring. Such steps will help better characterize the potential risks and benefits of CBIs as they are tested and potentially used for treatment. (shrink)