Explores the use of discourse anaphora in scientific abstracts and presents rules to be used for distinguishing anaphoric functioning of terms. The results of tests using these rules are reported, and the implications for natural language understanding, question answering, automatic extracting, query analysis, and bibliographic retrieval are…

Provides a method for estimating precision without examining individual database documents, which requires knowledge of only the query or expressed information need and a set of database parameters constant for all queries. Concepts of historic and expected precision are examined, and applications of precision-document graphs are assessed. (36…

Describes a system developed for the automatic recognition of biological concepts in titles of scientific articles; reports results of several pilot experiments which tested the system's performance; analyzes typical ambiguity problems encountered by the system; describes a disambiguation technique that was developed; and discusses future plans…