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11.
Fumiko Samejima 《Psychometrika》1998,63(2):111-130
Rationale and the actual procedures of two nonparametric approaches, called Bivariate P.D.F. Approach and Conditional P.D.F. Approach, for estimating the operating characteristic of a discrete item response, or the conditional probability, given latent trait, that the examinee's response be that specific response, are introduced and discussed. These methods are featured by the facts that: (a) estimation is made without assuming any mathematical forms, and (b) it is based upon a relatively small sample of several hundred to a few thousand examinees.Some examples of the results obtained by the Simple Sum Procedure and the Differential Weight Procedure of the Conditional P.D.F. Approach are given, using simulated data. The usefulness of these nonparametric methods is also discussed.This research was mostly supported by the Office of Naval Research (N00014-77-C-0360, N00014-81-C-0569, N00014-87-K-0320, N00014-90-J-1456). 相似文献
12.
Oaksford and Chater (2014, Thinking and Reasoning, 20, 269–295) critiqued the logic programming (LP) approach to nonmonotonicity and proposed that a Bayesian probabilistic approach to conditional reasoning provided a more empirically adequate theory. The current paper is a reply to Stenning and van Lambalgen's rejoinder to this earlier paper entitled ‘Logic programming, probability, and two-system accounts of reasoning: a rejoinder to Oaksford and Chater’ (2016) in Thinking and Reasoning. It is argued that causation is basic in human cognition and that explaining how abnormality lists are created in LP requires causal models. Each specific rejoinder to the original critique is then addressed. While many areas of agreement are identified, with respect to the key differences, it is concluded the current evidence favours the Bayesian approach, at least for the moment. 相似文献
13.
LI Guo 《Frontiers of Philosophy in China》2016,11(1):21-34
People unavoidably provide reasons for their words and deeds when reasoning in a language-game.Wittgenstein thinks that when people in different language-games argue with one other,they insist on adopting a doubtful attitude toward the reasons provided by the other side.His use of the term "language-game" here is a metaphor,and implies that people in different cultures can scarcely reason with one another.Indeed,according to Wittgenstein's consideration of concepts of logic in On Certainty,language-games are incompatible with one another because their internal logic and reasons are different from each other.However,in his discussion of empirical propositions Wittgenstein has also shown us the possibility that the intemal reasons of one language-game can transmit beyond its own borders and be valid in another language-game. 相似文献
14.
For a given numeration system U, a set X of integers is said to be U-star-free if the language of the normalized U-representations of the elements in X is star-free. Adapting a result of McNaughton and Papert, we give a first-order logical characterization of these sets for various numeration systems including integer base systems and the Fibonacci system. For k-ary systems, the problem of the base dependence of this property is also studied. Finally, the case of k-adic systems is developed. 相似文献
15.
冠心病的发病率逐年升高,死亡率居高不下,成为威胁人类健康的重要疾病。人们为了攻克这一难题进行了不懈的工作,溶栓、监护及介入治疗的出现挽救了众多生命。随着冠状动脉介入治疗方法的不断完善和广泛开展,冠状动脉介入治疗越来越成为冠心病治疗的主要临床手段。但随之而来的手术并发症、支架在狭窄等问题成为不得不考虑的问题。治疗策略的选... 相似文献
16.
Brian Hill 《Studia Logica》2008,89(1):81-109
It is well-known that classical models of belief are not realistic representations of human doxastic capacity; equally, models
of actions involving beliefs, such as decisions based on beliefs, or changes of beliefs, suffer from a similar inaccuracies.
In this paper, a general framework is presented which permits a more realistic modelling both of instantaneous states of belief,
and of the operations involving them. This framework is motivated by some of the inadequacies of existing models, which it
overcomes, whilst retaining technical rigour in so far as it relies on known, natural logical and mathematical notions. The
companion paper (Towards a “sophisticated” model of belief dynamics. Part II) contains an application of this framework to the particular case of belief revision.
Presented by Hannes Leitgeb 相似文献
17.
R. Gregory Taylor 《Journal of Philosophical Logic》2008,37(6):575-591
Symmetric propositions over domain and signature are characterized following Zermelo, and a correlation of such propositions with logical type- quantifiers over is described. Boolean algebras of symmetric propositions over and Σ are shown to be isomorphic to algebras of logical type- quantifiers over . This last result may provide empirical support for Tarski’s claim that logical terms over fixed domain are all and only
those invariant under domain permutations. 相似文献
18.
临床方法依然是神经内科医师最重要的诊断法宝 总被引:1,自引:1,他引:0
通过7例疑难、危重患者的诊治过程说明临床方法的重要性,在神经科疾病研究中尤为突出。忽视细致的病史采集和体查,常导致了诊疗的失误;面对种目繁多的检查,更需要以临床方法选择之;临床逻辑思维能力非常重要,正确的临床思维出新知。在实验室检查方法越来越多的今天,临床方法是神经内科医师最重要、方便、快捷、有效的诊断法宝,具有不可替代性。 相似文献
19.
Barbara Stevens Barnum 《Journal of religion and health》2006,45(3):346-358
This article provides a modern neurological explanation for the theoretical differences in psychoanalytic concepts and techniques between Freud and Jung. Specifically, the article contrasts their analytic skills as arising in the left and right brain, respectively. Modern neurological techniques reveal unique brain functions that explain many of the visionary and so-called mystic phenomena discussed by Jung. Many of his psychoanalytic concepts can be traced to right brain function. Modern research and philosophic analyses also provide light on Freud’s research method and its limitations.Barbara Stevens Barnum, RN, PhD, FAAN, former editor of Nursing Leadership Forum and Nursing & Health Care, is presently a writer/consultant. Before retiring, her positions at Columbia University included holding the directorship, Division of Health Services, Sciences and Education at Teachers College, where she also held the Stewart Chair in the Department of Nursing Education. Dr. Barnum has written in areas of nursing management, theory, education, and aspects of spirtuality/holistic nursing. Her books include: Nursing theory: Analysis, application, evaluation, Spirituality in nursing: From traditional to New Age, and The New Healers: Minds and Hands in Complementary Medicine. 相似文献
20.
选取条件概率(P(Q|P))由低到高的四个命题作为四卡问题中的检验规则,探讨了大学生被试对四张卡片的逻辑证明作用的推断能力及其对解决四卡问题的影响。结果发现:(1)不同条件概率的命题之间正确选择P-Q的人数百分比不存在显著差异,命题的条件概率因素对四卡问题的正确解决没有影响。(2)逻辑分析过程对四卡问题的正确解决产生了一定的抑制作用,这可能是因为被试不能从整体上思考四张卡片在命题检验中的逻辑作用的缘故。(3)一些被试即使在逻辑分析过程中表现出知道-Q卡片的证伪作用,仍然倾向于选择卡片Q而非-Q,这一现象再次证实了人类思维的非形式逻辑的一面。 相似文献