THESAURUS AND AUTOMATIC CONCEPTUAL INDEXING IN UNIVERSITY INFORMATION SYSTEM "RUSSIA"
Boris V. Dobrov, Natalia V. Loukachevitch
dobroff@mail.cir.ru; louk@mail.cir.ru
Research Computer Center of Moscow State University; NCO Center for Information Research

The paper describes the structure of the Sociopolitical thesaurus, which was specially created as a tool for automatic conceptual indexing. 

We compare main features of the Sociopolitical thesaurus and traditional information-retrieval thesauri. Evaluation of document search based on the Sociopolitical thesaurus shows considerable increase of retrieval effectiveness.