Presents an information systems navigation approach using a combination of functionalities encountered in classification processes, Hypertext systems, and information retrieval systems. The first version of the SYRIUS system is described, with emphasis on the user's graphic interface which integrates these functionalities. (26 references) (EA)

Describes a system that was developed in Germany for natural language processing (NLP) to improve free text analysis for information retrieval. Techniques from empirical linguistics are discussed, system architecture is explained, and rules for dealing with conjunctions in dependency analysis for free text processing are proposed. (13 references)…

Describes a study of the UCLA ORION online catalog that was conducted to determine (1) how often lengthy subject headings occur in the database, and what the effects of compressing the subject headings would be; and (2) how often the display of a term and its subdivisions are interrupted by syntactical construction. (seven references) (LRW)

Expands on constructivist theories that were discussed in an earlier issue. Highlights include cognitive flexible theory; multiple knowledge representations; prespecification of knowledge; teaching content versus skill; and cognitive flexibility hypertexts (CFHs), including the kinds of knowledge domains for which they should be used and the…

Highlights three ways a college or university can organize its technology areas to maximize comfort and save space. Examples are provided on controlling equipment sprawl through thoughtful workstation development, designing computer rooms for flexibility and effective cable management, and emulating business setups that are work-flow efficient and…

Discusses the design of computer applications, focusing on understanding design representations--what makes design representations work, and how, in different contexts. Examines the place of various types of representation (e.g., formal notations, models, prototypes, scenarios, and mock-ups) in design and the role of formalisms and representations…

Proposes a composite feature measure which combines the shape and color features of an image based on a clustering technique. A similarity measure computes the degree of match between a given pair of images; this technique can be used for content-based image retrieval of images using shape and/or color. Tests the technique on two image databases;…

Investigates how to improve the performance of an Arabic Information Retrieval System (Arabic-IRS) by imposing the retrieval method, Mixed Stemming, over individual words of a query depending on the importance of the word, the stem or the root of the query terms in the database. This method computes term importance using a Term Frequency and…

Discusses Web-based learning, also referred to as distributed learning, and outlines eight areas that are part of a framework to use to design successful Web learning environments. Includes pedagogical issues, technological factors, interface design, evaluation, management, resource support, ethical issues, and institutional considerations. (LRW)

Debates the issue of investing in wiring schools for desktop computer networks versus using laptops and wireless networks. Included are cost considerations and the value of technology for learning. Suggestions include using wireless networks for existing schools, hardwiring computers for new construction, and not using computers for elementary…

For about 10 years, several proposals to deal with ill-known information in database management systems have been made, and extensions of the relational data model have been proposed. An overview of functional dependencies is provided, and the connection between fuzzy functional dependencies and database design is discussed. (AEF)

Addresses the growth of signatures in document management. Describes the three basic types of electronic signature technology: image signatures, digital signatures, and digitized biometric signatures. Discusses legal and regulatory acceptability and bringing signatures into document management. (AEF)

Geographic information systems (GIS) are commonly misconceived as expensive and complicated map makers. Although GISs do create maps, they manipulate, organize, and display information, and aid in data documentation and accessibility. Managing GIS services involves not just hardware and software issues but managing digital data. (Author/AEF)

Evaluted a peer-assessment process implemented over several years in a Human-Computer Interaction class. Questionnaires, open-ended questions, and interviews revealed that overall students approved of the process (which included peer assessment based on explicit criteria along with subjective ranking exercises not included in grading), its…

Describes the purpose and benefits of interactivity in computer-based learning environments. Suggests strategies to assist instructional designers in effective utilization of interactivity within computer-based programs: providing comprehensive navigation options; using questions that require students to interact with the instructional material;…