{"type":"ScholarlyArticle","title":"Some Considerations Concerning The Problem Base Of Purposeful Systems","authors":[{"name":"V. Lozovsky","slug":"v-lozovsky","given":"V.","family":"Lozovsky","affiliation":""}],"abstract":"The problem base structure for purposeful systems is considered. It coaes out that predicate calculus is rather unwieldy for this purpose, semantic nets should be preferred. The main attention is paid to the convenience in representation of descriptive and operational information in the form of universal item (concept) in order to obtain natural and straightforward means for simulation of discrete and continuous processes, to provide proper interaction between them. The wide use of concept hierarchy .is proposed. A single unLversal operator is introduced: the instantiHtion of concepts. The material is presented in informal way.","doi":null,"url":"https://ijcai.org/proceedings/1975/84","pdf":"https://ijcai.org/proceedings/1975/0084.pdf","markdown":"https://ijcai.org/proceedings/1975/84.md","bibtex":"https://ijcai.org/proceedings/1975/bibtex/84","volume":{"slug":"1975","title":"Proceedings of the Fourth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1975","url":"https://ijcai.org/proceedings/1975/","year":1975,"location":"Tbilisi, Georgia, USSR","dates":"","editors":"Patrick Winston and Carl Hewitt","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"A.I. Software","track":"A.I. 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