Representing and Reasoning over Time in a Unified Cognitive Architecture

Most cognitive architectures have an implicit representation of time. As a result, reasoning about specific temporal relationships among events is typically beyond their capability. In this paper, we describe an extension of the ICARUS architecture to include an episodic belief memory, an explicit representation of temporal relationships, and associated reasoning processes. We then demonstrate the ensuing reasoning capabilities on a task that involves recognizing football plays. Finally, we discuss the implications of our temporal representation and reasoning mechanisms for the larger architecture.