This research discusses the electronic resources, types and divisions, it also deals with mechanism for evaluation resources of electronic information in general with concentration on concept of assessment and evaluation objectives as well as the organizers of the process in addition, the research also shows benefits of evaluation and its impact…

Reports preliminary results of a study to develop and automate new metrics for assessment of information quality in text documents, particularly in news. Through focus group studies, quality judgment experiments, and textual feature extraction and analysis, nine quality aspects were generated and applied in human assessments. Experiments were…

Introduces a novel approach to unsupervised text summarization. Proposes an "information-centric" approach to evaluation, where the quality of summaries is judged not in terms of how well they match human-created summaries but in terms of how well they represent their source documents in information retrieval tasks such as document…

Examines the importance of relevance criteria in end-user evaluation of valuable or high relevant information as users move through six stages of information seeking proposed by Kuhlthau (1994) and as they selected, obtained, and read information sources. Respondents were enrolled in graduate studies at the University of North Texas and Texas…

Proposes evaluation methods based on the use of nondichotomous relevance judgements in information retrieval (IR) experiments. Argues that evaluation methods should credit IR methods for their ability to retrieve highly relevant documents. This is desirable from the user point of view in modern large IR environments. (Author/AEF)

Presents preliminary findings of a project intended to develop a user-validated measurement instrument based on users' relevance criteria. Two validation tests revealed conceptual and methodological challenges involving the semantic ambiguity of terms and verified the importance of situational context to scale development and use. (Author/AEF)

Reviews research and practice in cross-language information retrieval (CLIR) that seeks to support the process of finding documents written in one natural language with automated systems that can accept queries expressed in other languages. Addresses user needs, document preprocessing, query formulation, matching strategies, sources of translation…

Almost overnight, the World Wide Web has made the solution of "classic" information retrieval problems a pressing commercial goal. The various information retrieval solutions being offered on the Web are quite familiar to the librarian. The various Web search sites make use of "traditional" inverted indexes, manual indexing,…

Focuses on synthesis in research--the combination of thesis and antithesis in the dialectical process, producing a new and higher form of being. Discusses kinds of synthesis (unique communication, plan of operation, abstract relations); synthesizing information pieces; summary practice leading to synthesis; and questions of analysis and synthesis.…

Traditional methods of authority present in a print environment are lacking on the Internet, and, even when occasionally present, are of questionable veracity. A formal model and evaluative criteria are suggested and explained to provide a means for accurately ascribing cognitive authority in a networked environment; the model is unique in its…

This guide assists Internet users in searching for quality information sources available via the Internet and assessing the quality of materials. Chapter 1 provides an introduction and background to the concept of quality in relation to the information available via the Internet. Chapter 2 presents a guide to the different types of online search…

Identifies and describes databases which cover business practice, policy, and principle; government activity; popular interest; and scientific, scholarly, or technical developments and specific information on products, services, and business lines, industries, companies, individuals, and geographic places. Nineteen figures illustrate sample…

Describes the development of a Unified Medical Language System (UMLS) by the National Library of Medicine that will retrieve and integrate information from a variety of information resources. Highlights include the metathesaurus; the UMLS semantic network; semantic locality; information sources map; evaluation of the metathesaurus; future…

Intended for students studying information resources units at Kuring-gai College of Advanced Education, this coursebook examines the nature of information, its generation, and the categories and characteristics of various formats of information resources available. Designed as an introduction to sources of brief factual information, the document…

Three Web search engines--Alta Vista, Excite, and Lycos--were compared and evaluated in terms of their search capabilities and retrieval performances using sample queries drawn from real reference questions. Findings indicated Alta Vista outperformed Excite and Lycos in both search facilities and retrieval performance, although Lycos had the…