Representation of Concepts as Frames
نویسنده
چکیده
Concepts can be represented as frames, i.e., recursive attribute-value structures. Frames assign unique values to attributes. Concepts can be classi ed into four groups with respect to both relationality and referential uniqueness: sortal, individual, proper relational, and functional concepts. The paper de nes frames as directed graphs with labeled nodes and arcs and it discusses the graph structures of frames for sortal and relational concepts. It aims at a classi cation of frame graphs that re ects the given concept classi cation. By giving a new definition of type signatures, the status of attributes in frames is clari ed and the connection between functional concepts, their sortal uses, and their associated attributes is explained.
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