Smalltalk-80: the language and its implementation
Smalltalk-80: the language and its implementation
Conceptual structures: information processing in mind and machine
Conceptual structures: information processing in mind and machine
Login: A logic programming language with built-in inheritance
Journal of Logic Programming
Proceedings of the 9th annual international ACM SIGIR conference on Research and development in information retrieval
On database systems development through logic
ACM Transactions on Database Systems (TODS)
Maintaining knowledge about temporal intervals
Communications of the ACM
An intelligent analyzer and understander of English
Communications of the ACM
Decentralised control in a blackboard system
Decentralised control in a blackboard system
A Survey on Content-Based Retrieval for Multimedia Databases
IEEE Transactions on Knowledge and Data Engineering
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This paper describes the “conceptual” Knowledge Representation Language (KRL) proper to an environment for the construction and use of large Knowledge Bases and/or “Intelligent” Information Retrieval Systems. In the KRL, we separate the treatment of the episodic memory (extensional, assertional data = “Snoopy is Charlie Brown's beagle”) from the treatment of the semantic memory (intensional, terminological data = A beagle is a sort of hound / a hound is a dog …). A compromise between an “object-oriented approach” and a “logic-oriented approach” is proposed for implementation purposes.