Describes Missouri's program for training library science students in the use of online bibliographical tools. (FM)

Describes a linkage similarity measure which takes into account both the bibliographic coupling of documents and their cocitations and compares the resulting predictions of relevance to the user's evaluations of the papers used in a test collection. (FM)

Surveys the current state of minicomputer-operated information systems capable of incorporating linguistic features, focusing on the Minicomputer Operated Retrieval (Partially Heuristic) System. Consideration is given to the automation of the indexing process and to available search strategies. (FM)

Describes ways of using Boolean questions with a clustered information file, and reviews an experiment studying the effect of such a retrieval method. (FM)

Proposes a summarization system for multiple documents that employs named entities and other signatures to cluster news from different sources, as well as punctuation marks, linking elements, and topic chains to identify the meaningful units (MUs). Using nouns and verbs to identify similar MUs, focusing and browsing models are applied to represent…

This special issues comprises nine papers presenting a wide selection of approaches to handling subjectivity, vagueness, and imprecision in information retrieval (IR) and database management necessary for success in designing, developing and implementing effective tools for information access. (LRW)

Discusses users' search behavior and decision making in data mining and information retrieval. Describes iterative information seeking as a Markov process during which users advance through states of nodes; and explains how the information system records the decision as weights, allowing the incorporation of users' decisions into the Markov…

Presents a model that distinguishes between data as directly observable facts, information as structured collections of data, and knowledge as methods of using information. The discussion covers the likely benefits of the use of the model for a semantic information retrieval system using the concept of semantic categories. (28 references)…

Presents a system which supports image retrieval by high-level chromatic contents, the sensations that color accordances generate on the observer. Surveys Itten's theory of color semantics and discusses image description and query specification. Presents examples of visual querying. (AEF)

Presents a prototype system for image retrieval from the Internet using Web mining. Discusses the architecture of the Web image retrieval prototype; document space modeling; user log mining; and image retrieval experiments to evaluate the proposed system. (AEF)

Explores what might be the optimal query expansion (QE) processing method with semantically coded thesauri. Examines whether QE via semantically coded thesauri terminology is more effective in the "automatic" or "interactive" processing environment. Results revealed that synonyms and partial synonyms and narrower terms are…

Discusses improving the quality of satisfaction of information needs through the use of information retrieval systems. The characteristics of information need are investigated; a new instrument in information retrieval systems is proposed which takes into account different components of information need; and future research is suggested.…

Information retrieval (IR) is driven by a process that decides whether a document is about a query. The purpose of this article is to consider "aboutness" from a fundamental, neutral perspective, to shed light on the nature of aboutness by formalizing properties describing it, and to define a set of reasonable properties of aboutness,…

Traditional themes of information science must be expanded to accommodate systematic understandings of ways to design effective documentary systems and anticipate their social consequences. The field of social informatics offers important concepts, theories, and methods that give this kind of inquiry a sound scientific basis. Social informatics…

Provides an introduction to articles in this special "Perspectives" issue of "Journal of the American Society for Information Science and Technology." The articles, taken collectively, contain significant elements of a research agenda in image indexing and retrieval for the next decade. Articles focus on user, representation,…