Online research in philosophy

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)

This paper describes a live ethics case project that can be used to teach ethics in a broad variety of business classes. The live case differs from regular cases in that it involves a current situation. Students select an on-going or current event that involves ethical violations and write a case about it. They then present their case and run a debate about the challenges and issues outlined in the case and the actions that could have or should have been (...) taken. The dynamic project fulfills the key criteria for effective ethics education since it increases awareness of the complexity of ethical challenges, allows application of concepts, creates a personal emotional engagement in the case, is relevant, holds students accountable for their position, and creates a setting that encourages students to think critically about ethics. (shrink)