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- W2205018490 abstract "In this research I have extended the capabilities of DataBase Management Systems (DBMS) to support the needs of Expert Systems (ESs) through the development of a set of data structures, operations and constraints (called a data model) with which the knowledgebase transactions of an ES can be naturally expressed.Expert Systems are called knowledge-based artificial intelligence programs, because they rely for their performance on a large store of knowledge, rather than a general reasoning method. To date the management of these data bases (or knowledge bases) has been largely ad hoc, with each ES developer designing the file access paths, and writing data update and retrieval software for each system. DBMSs have not been generally used in ES building. One reason for this is difficulty in describing and manipulating the data structures involved in ES programs using existing DBMS data models.I have designed the structures of the Applicative Data Model (ADM) to serve the representations of four medical expert systems--MYCIN, CASNET, PIP and Galen; and demonstrate them by describing their individual schemas and a common knowledgebase schema which supports sharing of their knowledge. I demonstrate the operations with a description of the operation of Galen.ADM has an integrated meta-schema, a combined Data Definition, Constraint Definition and Data Manipulation Language with a declarative semantics and a graphical subset that eases communication with users. ADM provides for queries stored as data, and very high level operators including a specific pattern matching operator that uses variables in queries.ADM does not provide separate constructs for each of the most common combination of constraints and data structures involved in ES, rather a small set of orthogonal constructs has been provided that may be combined in uniform ways to model and manipulate the data." @default.
- W2205018490 created "2016-06-24" @default.
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- W2205018490 modified "2023-09-27" @default.
- W2205018490 title "Extending the capabilities of database management systems to support the needs of expert systems" @default.
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