IRMA: A FACTOGRAPHIC SYSTEM OF INFORMATION RETRIEVAL FOR REACTOR MATERIAL TESTING

A. V. Rudkevich, V. G. Dvoretsky, V. B. Ivanov, B. A. Kanashov, Yu. V. Markov, V. M. Rayetsky, T. A. Temnoyeva
VANT. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1984. Вып.2. С. 47-56.

      Basic architecture principles are given for information system providing prompt access to facts describing experimental conditions and results of reactor material testing. An approach is proposed for modelling a material field; methods of receiving answers to requests and software for user-system dialogue organization are described.

      A way of knowledge representation in a factograhic system of information retrieval is presented based on using semantic networks, indefinite values, and so- called modal functions. On the basis of the suggested approach complex objects vehavior in time is simulated, deductive derivation is given, conclusions are made concerning ability of realization of varions combinations of facts. A way of knowledge representation is described using semi-relational data base which relations are presented by disordered flat files. Time of answer retrieval for request is analysed and recomendations for its optimization are given.