Presents a new extraction pattern, modified Document Type Definition (mDTD), which relies on analytical interpretation to identify extraction target from the contents of Web documents. Experiments with 330 Korean and 220 English Web documents on audio and video shopping sites yielded an average extraction precision of 91.3% for Korean and 81.9%…

Machine-Readable Dictionaries (MRD) and Machine Translation (MT) systems are important resources for query translation in Cross-Language Information Retrieval (CLIR). Investigates use of MT systems and MRD to Arabic-English and English-Arabic CLIR. Translation ambiguity is the key problem. Presents three methods of query translation using a…

Describes three groups of databases sponsored by the European Communities Commission: Eurobases, a textual database of the contents of the "Official Journal" of the European Community; the European Community Host Organization (ECHO) databases, which offer multilingual information about Europe; and statistical databases. Information on…

Describes Structured Query Language (SQL), the result of an American National Standards Institute effort to standardize language used to query computer databases and a common element in second generation database management systems. The discussion covers implementations of SQL, associated products, and techniques for its use in online catalogs,…

Describes online catalog research being conducted in Europe in the areas of interaction and interface design, subject access, functional improvement through the application of information retrieval techniques, and library networks. Three operational online catalogs, not available outside Europe, are discussed. (30 references) (CLB)

Introduces a new methodology for studying the effects of term selection and postings overlap on retrieval, under the assumption that pooling results for several searchers or questions may obscure important relationships. Based on the findings of a case study, several tentative conclusions and hypotheses, are posited and suggestions for future…

Presents evidence to show that the body plays a continuing and fundamental part in the process of thinking and the development of the knowledge used to think. Topics discussed include knowledge structures and representations; artificial intelligence; feeling; learning processes; models of knowledge; information retrieval; and implications for…

Outlines an approach to the automatic construction of a knowledge base resulting in a system that is able in each phase of its construction to acquire domain knowledge from all new information that it is building, particularly index terms. Topics covered include production rules, the use of semantic networks, and user interfaces. (32 references)…

Evaluates the Library and Information Science Abstracts on optical data disk available through SilverPlatter Information Inc. The criteria discussed include installation instructions; ease of use; retrieval facilities; the results of a test search; the screen display; documentation; characteristics of the database; and cost and updating. (CLB)

Describes a pilot study in which a single database was constructed to provide access by both descriptors and cited references. For each query, two equivalent sets were retrieved and evaluated for relevance to the query. It is concluded that using both search methods can increase both recall and precision. (32 references) (CLB)

Discusses methods for the retrieval of help knowledge items using graphical tree structures that conform to the hierarchical nature of the tutorial information being referenced. The implementation of "Study Tree Presenter," a special purpose "hypertext shell" that provides such access is described and several samples of screen…

Compares two full featured database management systems for bibliographic information in terms of programs and documentation; record creation and editing; online database citations; search procedures; access to references in external text files; sorting and printing functions; style sheets; indexes; and file operations. (four references) (CLB)

Describes a study that compared retrieval obtained by searching hardcopy and online indexes. Measures of comparison were recall and precision, user preferences, and the amount of effort required to complete the search. The findings indicate that neither method offers an overall advantage and suggest that both search modes should be maintained. (12…

Discusses the background and the current situation of computer information retrieval systems in China. Problem areas considered include: (1) lack of coordination of activities; (2) lack of data on user demand; and (3) shortages of personnel in computer science, mathematics, and systems engineering. An agenda for the future is outlined. (MES)

Presents a framework for the study of hypertext. First, a historical perspective on the evolution of hypertext is provided. Next, hypertext system components are presented, and relevant psychological and pedagogical issues are analyzed. Finally, a framework for the study of hypertext, with implications for theory, research, and development, is…