Forster and Sober introduced the “sub-family problem” for model selection criteria that recommend balancing goodness-of-fit against simplicity. This problem arises when a maximally simple model is artificially constructed to have excellent fit with the data. We argue that the problem arises because of a violation of the general maxim that balancing goodness-of-fit against simplicity leads to desirable inferences only if one is comparing models for the consideration of which one has a positive reason independently of the current data.

How children go about learning the general regularities that govern language, as well as keeping track of the exceptions to them, remains one of the challenging open questions in the cognitive science of language. Computational modeling is an important methodology in research aimed at addressing this issue. We must determine appropriate learning mechanisms that can grasp generalizations from examples of specific usages, and that exhibit patterns of behavior over the course of learning similar to those in children. Early learning of (...) verb argument structure is an area of language acquisition that provides an interesting testbed for such approaches due to the complexity of verb usages. A range of linguistic factors interact in determining the felicitous use of a verb in various constructions—associations between syntactic forms and properties of meaning that form the basis for a number of linguistic and psycholinguistic theories of language. This article presents a computational model for the representation, acquisition, and use of verbs and constructions. The Bayesian framework is founded on a novel view of constructions as a probabilistic association between syntactic and semantic features. The computational experiments reported here demonstrate the feasibility of learning general constructions, and their exceptions, from individual usages of verbs. The behavior of the model over the timecourse of acquisition mimics, in relevant aspects, the stages of learning exhibited by children. Therefore, this proposal sheds light on the possible mechanisms at work in forming linguistic generalizations and maintaining knowledge of exceptions. (shrink)

In the course of examining the origin of evil in the De malorum subsistentia, Proclus reproduces a position that considers the maleficent (world-)soul as cause of evil. The same entity is held to co-govern the material realm alongside the beneficent world-soul. While scholarship tends to associate the testimonium with Plutarch (and Atticus), this survey shows why Numenius of Apamea is a much more probable candidate. The discussion concludes with further proposals for a new edition of Numenius, including possible traces of (...) Numenius in Iamblichus’ On Soul and Porphyry's On the Faculties of Soul. (shrink)

Words are the essence of communication: They are the building blocks of any language. Learning the meaning of words is thus one of the most important aspects of language acquisition: Children must first learn words before they can combine them into complex utterances. Many theories have been developed to explain the impressive efficiency of young children in acquiring the vocabulary of their language, as well as the developmental patterns observed in the course of lexical acquisition. A major source of disagreement (...) among the different theories is whether children are equipped with special mechanisms and biases for word learning, or their general cognitive abilities are adequate for the task. We present a novel computational model of early word learning to shed light on the mechanisms that might be at work in this process. The model learns word meanings as probabilistic associations between words and semantic elements, using an incremental and probabilistic learning mechanism, and drawing only on general cognitive abilities. The results presented here demonstrate that much about word meanings can be learned from naturally occurring child-directed utterances (paired with meaning representations), without using any special biases or constraints, and without any explicit developmental changes in the underlying learning mechanism. Furthermore, our model provides explanations for the occasionally contradictory child experimental data, and offers predictions for the behavior of young word learners in novel situations. (shrink)

Physicians in Islamic countries might be requested to participate in the Islamic legal code of qiṣāṣ, in which the victim or family has the right to an eye-for-an-eye retaliation. Qiṣāṣ is only used as a punishment in the case of murder or intentional physical injury. In situations such as throwing acid, the national legal system of some Islamic countries asks for assistance from physicians, because the punishment should be identical to the crime. The perpetrator could not be punished without a (...) physician’s participation, because there is no way to guarantee that the sentence would be carried out without inflicting more injury than the initial victim had suffered. By examining two cases of acid throwing, this paper discusses issues related to physicians’ participation in qiṣāṣ from the perspective of medical ethics and Islamic Shari’a law. From the standpoint of medical ethics, physicians’ participation in qiṣāṣ is not appropriate. First, qiṣāṣ is in sharp contrast to the Hippocratic Oath and other codes of medical ethics. Second, by physicians’ participation in qiṣāṣ, medical practices are being used improperly to carry out government mandates. Third, physician participation in activities that cause intentional harm to people destroys the trust between patients and physicians and may adversely affect the patient–physician relationship more generally. From the standpoint of Shari’a, there is no consensus among Muslim scholars whether qiṣāṣ should be performed on every occasion. We argue that disallowing physician involvement in qiṣāṣ is necessary from the perspectives of both medical ethics and Shari’a law. (shrink)

Welche - nicht nur philosophischen - Konzeptionen des Rationalen gibt es? Wie manifestiert und determiniert die Rationalität die soziale Praxis? Wie ist unser alltägliches Handeln in Rationalitätsstrukturen eingebettet und lässt sie sich auf andere Bereiche wie Religion, Kunst, Alltagssprache oder Mythos anwenden? Auf wie viel Irrationalität beruht das, was wir heute als wahr akzeptieren? Und wie ist das Wechselverhältnis zwischen Rationalität und menschlichen Emotionen? Was steckt hinter der oft als «neutral» ausgewiesenen Rationalität, welche Interessen, Akteure, sozial-historischen Strukturen, welche Bedingungen und (...) Voraussetzungen hat Rationalität? Wie gehen wir mit einem Pluralismus verschiedener Rationalitäten um? Diese Fragen versucht das 2. Symposium der philosophischen akademie mit Vortragenden unterschiedlicher kultur-, sozial- und geisteswissenschaftlicher Disziplinen zu beantworten. (shrink)

Welche - nicht nur philosophischen - Konzeptionen des Rationalen gibt es? Wie manifestiert und determiniert die Rationalität die soziale Praxis? Wie ist unser alltägliches Handeln in Rationalitätsstrukturen eingebettet und lässt sie sich auf andere Bereiche wie Religion, Kunst, Alltagssprache oder Mythos anwenden? Auf wie viel Irrationalität beruht das, was wir heute als wahr akzeptieren? Und wie ist das Wechselverhältnis zwischen Rationalität und menschlichen Emotionen? Was steckt hinter der oft als «neutral» ausgewiesenen Rationalität, welche Interessen, Akteure, sozial-historischen Strukturen, welche Bedingungen und (...) Voraussetzungen hat Rationalität? Wie gehen wir mit einem Pluralismus verschiedener Rationalitäten um? Diese Fragen versucht das 2. Symposium der philosophischen akademie mit Vortragenden unterschiedlicher kultur-, sozial- und geisteswissenschaftlicher Disziplinen zu beantworten. (shrink)