This document discusses representing commonsense knowledge. It describes commonsense knowledge as everyday facts that most people understand, like objects falling when dropped or fish needing water. Representing all commonsense knowledge is difficult as there are no defined boundaries and some concepts cannot be described with sentences alone. The document outlines research areas in representing objects, materials, space, time, and physical processes. It also discusses knowledge representation using semantic networks and frames to organize taxonomic hierarchies and relationships between objects, properties, and categories in a graph structure. Nonmonotonic reasoning is also discussed for handling exceptions to default inferences.
This document discusses representing commonsense knowledge. It describes commonsense knowledge as everyday facts that most people understand, like objects falling when dropped or fish needing water. Representing all commonsense knowledge is difficult as there are no defined boundaries and some concepts cannot be described with sentences alone. The document outlines research areas in representing objects, materials, space, time, and physical processes. It also discusses knowledge representation using semantic networks and frames to organize taxonomic hierarchies and relationships between objects, properties, and categories in a graph structure. Nonmonotonic reasoning is also discussed for handling exceptions to default inferences.