Abstract

Knowledge Acquisition (KA) Scripts capture typ-ical modification sequences that users follow when they modify knowledge bases. KA tools can use these Scripts to guide users in making these mod-ifications, ensuring that they follow all the rami-fications of the change until it is completed. This paper describes our approach to design, develop, and organize a library of KA Scripts. We report the results of three different analysis to develop this library, including a detailed study of actual modification scenarios in two knowledge bases. In addition to identifying a good number of KA Scripts, we found a set of useful attributes to describe and organize the KA Scripts. These attributes allow us to analyze the size of the library and generate new KA Scripts in a systematic way. We have implemented a portion of this library and conducted two different studies to evaluate it. The result of this evaluation showed a 15 to 52 percent time savings in modifying knowledge bases and that the library included relevant and useful KA Scripts to assist users in realistic settings.

Date

1999

Authors

Marcelo Tallis, Yolanda Gil

Publisher

Orlando: AAAI Press