среда, 30 декабря 2009 г.

Semantic thesis.

Semantic thesis - a structure for knowledge representation in the form of nodes connected by arcs. The earliest semantic thesis have been developed as an intermediary language for machine translation, and many modern versions are still similar in its characteristics with the natural language. However, recent versions of semantic thesis have become more powerful and flexible to compete frame systems, logic programming and other languages of submission.
Beginning in the late 50th years were created and implemented dozens of versions of semantic thesis. Although the terminology and structure is different, there are similarities inherent in virtually all semantic thesis:
1. semantic thesis nodes represent concepts of objects, events, states;
2. different nodes of a concept are of different values if they are not marked, that they belong to the same concept;
3. arc semantic thesis create relationships between nodes-concepts (labels on arcs indicate the type of relationship);
4. Some relationships between the concepts represent the linguistic case, such as agent, object, recipient, and an instrument (other mean time, spatial, logical relations and relations between individual proposals;
5. concepts are organized by level according to the degree of generalization because, for example, nature, animal, animal, carnivorous,;
But there are differences: the concept of value in terms of philosophy, methods and the commonality of the quantifiers and logical operators, networks and ways of manipulating the rules of the withdrawal, the terminology. This varies from author to author. Despite some differences, networks are convenient for reading and processing machine, as well as powerful enough to represent the semantics of natural language.


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