From a leading authority in artificial intelligence, this book delivers a synthesis of the major modern techniques and the most current research in natural language processing. The approach is unique in its coverage of semantic interpretation and discourse alongside the foundational material in syntactic processing.

Conscious experience is one of the most difficult and thorny problems in psychological science. Its study has been neglected for many years, either because it was thought to be too difficult, or because the relevant evidence was thought to be poor. Bernard Baars suggests a way to specify empirical constraints on a theory of consciousness by contrasting well-established conscious phenomena - such as stimulus representations known to be attended, perceptual, and informative - with closely comparable unconscious ones - such as (...) stimulus representations known to be preperceptual, unattended, or habituated. Adducing data to show that consciousness is associated with a kind of global workplace in the nervous system, and that several brain structures are known to behave in accordance with his theory, Baars helps to clarify many difficult problems. (shrink)

In some views of cognitive science, episodic memory is simply one of many pieces of the puzzle of cognition: MEMORY, REASONING, and learning can be studied largely independently of one another. The case‐based reasoning (CBR) stance takes the contrasting position that human reasoning, memory, and learning are inextricably bound together. In this view, reasoning is primarily based on remembering and reapplying the lessons of prior episodes. A case‐based problem‐solver, for example, solves new problems by retrieving traces of relevant prior problems (...) from memory, establishing correspondences between those problems and the new situation, and adapting the prior solutions to fit the problem at hand. Learning is a natural side effect of this process, as traces of new episodes are stored for future use. (shrink)