cognitive systems

We summarize progress to date on a new cognitive architecture called ARCADIA that gives a central role to attention in both perception and cognition. We also present a model of incremental object construction and property binding in ARCADIA using the well known change blindness phenomena to illustrate the time course of object perception and its dependence on attention.

Part of a multi-institutional effort to develop natural language resources for engaging in question answering and dialog.

We review the main qualitative characteristics of everyday inference in human cognition and present a computational account that is consistent with them.

We report on a system for inductive process modeling that uses structural constraints to reduce its search through the space of candidate models and to produce ones that human scientists find plausible.