An overview of KRL, a Knowledge Representation Language

Available Online:

https://purl.stanford.edu/pf235fy3176

Title:

An overview of KRL, a Knowledge Representation Language

Relation:

Stanford University. Libraries. Department of Special Collections and University Archives3840/2https://purl.stanford.edu/pf235fy3176, Stanford University, Department of Computer Science, Technical Reports, and Stanford Artificial Intelligence Laboratory records, 1963-2009

PublishDate:

2021-02-05T23:25:45Z

Description:

This paper describes KRL, a Knowledge Representation Language designed for use in understander systems. It outlines both the general concepts which underlie our research and the details of KRL-0, an experimental implementation of some of these concepts. KRL is an attempt to integrate procedural knowledge with a broad base of declarative forms. These forms provide a variety of ways to express the logical structure of the knowledge, in order to give flexibility in associating procedures (for memory and reasoning) with specific pieces of knowledge, and to control the relative accessibility of different facts and descriptions. The formalism for declarative knowledge is based on structured conceptual objects with associated descriptions. These objects form a network of memory units with several different sorts of linkages, each having well-specified implications for the retrieval process. Procedures can be associated directly with the internal structure of a conceptual object. This procedural attachment allows the steps for a particular operation to be determined by characteristics of the specific entities involved. The control structure of KRL is based on the belief that the next generation of intelligent programs will integrate data-directed and goal-directed processing by using multi-processing. It provides for a priority-ordered multi-process agenda with explicit (user-provided) strategies for scheduling and resource allocation. It provides procedure directories which operate along with process frameworks to allow procedural parameterization of the fundamental system processes for building, comparing, and retrieving memory structures. Future development of KRL will include integrating procedure definition with the descriptive formalism.

Identifier:

CS-TR-1976-581

Contributor:

Bobrow, Daniel G. (autAuthor) and Winograd, Terry A. (autAuthor)

Type:

Text and technical reports

Date:

1976-11-01

Language:

engEnglish

Format:

1 text file, technical reports, and image/jpeg

Subject:

Stanford University. Computer Science Department and Computer science

Thumbnail:

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Exhibit Tags:

Technical Report