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公开(公告)号：CA1267223A
公开(公告)日：1990-03-27
申请号：CA527278
申请日：1987-01-13
Applicant: IBM
Inventor： ASHFORD THOMAS J , BURNS NANCY A , FLAGG RICHARD L , IWASKIW CHRISTINE T , STARBIRD ROBERTA P
IPC: G06F15/18
Abstract: AT9-86-007 A method for use in an expert system which selectively allows the system to avoid asking the user a question by providing the answer to that question based on related information that may have been previously attained in the system. The method involves providing an action attribute that can be attached to any node in the rule tree. The attribute is assigned to a node in the tree which provides an answer to a class question based on processing various other dependent nodes. When the answer is obtained, the action attribute then causes all other Dodes in she rule base referencing the same class question to be set to the same answer. The user is therefore only requested to supply information as a last resort.
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公开(公告)号：CA1252215A
公开(公告)日：1989-04-04
申请号：CA507393
申请日：1986-04-23
Applicant: IBM
Inventor： ASHFORD THOMAS J , BURNS NANCY A , FLAGG RICHARD L , IWASKIW CHRISTINE T , MCBRIDE MICHAEL E , PADDEN JAMES T , STARBIRD ROBERTA P
Abstract: A method for solving problems using an expert system in which the Rulebase includes a section having specific definitions of processes or procedures which are available to the expert system as a data source. The method allows data to be collected dynamically in response to and in accordance with parameters supplied by the expert system and at a time determined by the expert system. The ability of the expert system to provide meaningful conclusions is considerably enhanced when such type of data is made available since any process or procedure that can be executed on the host for the expert system can become a source of current data for analysis by the expert system. Computer hardware diagnostic applications can include running self-diagnostic procedures even on the host system.
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公开(公告)号：CA1252214A
公开(公告)日：1989-04-04
申请号：CA507322
申请日：1986-04-23
Applicant: IBM
Inventor： ASHFORD THOMAS J , BURNS NANCY A , FLAGG RICHARD L , IWASKIW CHRISTINE T , STARBIRD ROBERTA P
Abstract: A method for running an expert system on a data processing system in which the Rulebase is segmented, preferably into contextual segments or units so that the limited size of the system memory can accommodate each segment. When the Rulebase is segmented, it is then possible to eliminate portions of the Rulebase containing data or knowledge that is not needed in a particular application. The segmenting of the Rulebase also allows the expert system to be run with systems or on systems having much smaller memory capacities than was possible with prior art arrangements since each segment of the Rulebase can be paged into and out of the system as needed. The segmenting of the Rulebase into contextual segments requires that the expert system manage various intersegment relationships as segments are paged into and out of memory during execution of the program. The system permits a Rulebase segment to be called and executed at any time during the processing of the first Rulebase. Provision is made to store the data that has been accumulated up to that point so that at some time later in the process, when the system returns to the first segment, it can proceed from the last point or RULE node that was processed. Provision is made so that data that has been collected by the system up to that point can be passed to the second segment of the Rulebase after it has been paged into the system and data collected during the processing of the second segment can be passed to the first segment when the system returns to complete processing that segment. Since a Rulebase may be "called" by the system, it is not necessary to duplicate the same Rulebase several times to conclude goals about similar but distinct items that are being analyzed.
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