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This paper describes the design of and experimentation with the Knowledge Query and Manipulation Language (KQML), a new language and protocol for exchanging information and knowledge. This work is part of a larger effort, the ARPA Knowledge Sharing Effort which is aimed at developing techniques and methodology for building large-scale knowledge bases which(More)
This document i s a draft of an initial speciication for the KQML agent communication language being developed by the external interfaces working group of the DARPA Knowledge Sharing EEort. KQML is intendewd to be a high-level language to be used by knowledge-based system to share knowledge at run time. Notice of DRAFT status. This document presents the(More)
Semantic data models for database systems provide powerful tools to assist database administrators in designing and maintaining schemas, but provide little or no direct support for users of the database. Some research has been done on mapping user models of a domain to the underlying database using semantic schemas. Little has been done, however, on mapping(More)
The Intelligent Database Interface (IDI) is a cache-based interface that is designed to provide Artificial Intelligence systems with efficient access to one or more databases on one or more remote database management systems (DBMSs). It can be used to interface with a wide variety of different DBMSs with little or no modification since SQL is used to(More)
Abatraot Raouralva rules, such as "Your parents' ancestors are your ancestors", although vary uaaful for theorem proving, natural languaga understanding, question-answering and Information retrieval systems, present problems for many such systems, either causing infinite loopa or requiring that arbitrarily many copies of them be made. SNIP, the SNaPS(More)
Simultaneous attention to 49 spatial positions resulted in the processing of threshold information from one of those positions essentially identical to the processing when the subject knew in advance that that position would be tested. This result held true when the task consisted of detection of the presence of a briefly presented dot. The same result held(More)