Discusses natural language processing and proposes a novel approach to automatic text segmentation using heterogeneous linguistic knowledge and cluster algorithms. Represents the diversity of textual relations in a discourse network in order to analyze the linguistic bonds and determine the degree of coherence that a text may exhibit. (Author/LRW)

Presents a domain-specific thesaurus for linguistic support of an information broker that employs an adaptive semantic-distance function based on pathfinder networks and algorithms for automated population by nominal compound interpretation and relational inheritance. Mathematical structure of thesauri and issues for further research are also…

Describes an approach to the design and implementation of an information retrieval system capable of providing an optimal search for each individual user based on the properties of information need. An algorithm is proposed for organizing optimal search in the systems realizing SDI (selective dissemination of information). (Author/LRW)