Proposes a new learning algorithm to improve the retrieval effectiveness of the search system used in the hypertext environment using an extended Boolean model with links to improve the ranking of retrieved items. Highlights include the basic retrieval scheme, the learning scheme, and a review of basic probabilistic retrieval models. (Contains 32…

Describes a prototype reference collection management system that uses a relational database management program to automate traditional library processes such as library inventory and shelf-reading. Examines reference collection management criteria and system considerations, and reviews the database's characteristics and its benefits to libraries.…

Addresses foundations of designing a bibliographic database for casual end-users, including the representation of knowledge, hierarchical schemata, cognitive processing of search problems, basic level categories of knowledge, and Boolean strategy in online searching. A hierarchical-based query model, data-item model, and idealized data model for…

Discusses natural language retrieval systems, focusing on West Publishing Company's WIN (Westlaw Is Natural) system used with its case law database. Information retrieval models, the advantages and disadvantages of natural language retrieval, and the use of the approach by Congressional Quarterly's Washington Alert, Personal Librarian, and other…

Outlines the current legal structure of the European geographic information system (GIS) database industry, particularly in the area of copyright protection; critiques the impending Commission of the European Communities directive; and emphasizes the need for global consensus on the legal structure's ability to protect and regulate the flow of…

This report, the second annual Database Marketplace survey, analyzes information gathered from 29 companies that distribute and produce information available through online, Web, or CD-ROM systems. In addition to data, topics include company mergers, takeovers, sales, accomplishments, and future plans. (Author/LRW)

Automated persuasion is the Holy Grail of quantitatively biased data base designers. However, data base histories are, at best, probabilistic estimates of customer behavior and do not make use of more sophisticated qualitative motivational profiling tools. While usually absent from web designer thinking, qualitative motivational profiling can be…

Edutella is an RDF-based E-Learning P2P network that is aimed to accommodate heterogeneous learning resource metadata repositories in a P2P manner and further facilitate the exchange of metadata between these repositories based on RDF. Whereas Edutella provides RDF metadata repositories with a quite natural integration approach, XML metadata…

This learning activity packet (LAP) contains nine self-paced study lessons that allow students to proceed along a a 43-hour course of study for dBase III Plus at their own pace. The lessons are organized in the following way: objectives, completion standard, performance standard, a list of required materials, unit test, and exercises (applications…

This learning activity packet (LAP) contains five self-paced study lessons that allow students to proceed along a 22-hour course of study for dBase III Plus Advanced at their own pace. It continues the introductory dBase III Plus course. The lessons are organized in the following way: objectives, completion standard, performance standard, a list…

Exposes erroneous ideas related to the use of databases for teaching thinking skills. Reviews the importance of databases for teaching social studies; describes the teacher's role in helping students use databases; discusses effective teaching strategies; and outlines what is needed to teach thinking skills. (Author/LS)

Describes the development of California Institute of Technology Libraries' local database of articles from science and engineering journals and its integrated document request and delivery feature. It is noted that not all journals received by the libraries are in the database, backfiles are limited, and coverage is not comprehensive. (five…

"Straight A's: Public Education Policy and Progress" is a biweekly newsletter that focuses on education news and events both in Washington, DC and around the country. The following articles are included in this issue: (1) Two Omnibus Bills and a Partridge in a Pear Tree?: Final Vote on Education Appropriations Bill Could Come Before…

We propose a novel data distribution framework for developing a large Web-based course forum system. In the distributed architectural design, each forum server is fully equipped with the ability to support some course forums independently. The forum servers collaborating with each other constitute the whole forum system. Therefore, the workload of…

Considering the popularity of the Internet, an automatic interactive feedback system for Elearning websites is becoming increasingly desirable. However, computers still have problems understanding natural languages, especially the Chinese language, firstly because the Chinese language has no space to segment lexical entries (its segmentation…