Search (156 results, page 8 of 8)

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Abstract

A 2 part report combining an introduction to multimedia technology with examples of its application. The first part addresses fundamental concepts and technical issues to explain how interactive multimedia systems work, and introduces platforms including optical discs, interactive videodiscs, CD-ROM (and its derivatives), digital video interactive, holograms, and high resolution television. The second part describes over 30 projects at 26 sites, with first hand observation, comments and advice. Includes brief descriptions of many more applications and listings of sited worldwide, plus sources of further information

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Abstract

Databases of historical texts are increasingly becoming available for end user searching via online or CD-ROM databases. Many of the words in these databases are spelt differently from today with resultant loss of retrieval. The project evaluated a range of techniques that can suggest historical variants of modern language query words, the work deriving from earlier work on spelling correction

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Abstract

Reviews the basic techniques involving genetic algorithms and their application to 2 problems in information retrieval: the generation of equifrequent groups of index terms; and the identification of optimal query and term weights. The algorithm developed for the generation of equifrequent groupings proved to be effective in operation, achieving results comparable with those obtained using a good deterministic algorithm. The algorithm developed for the identification of optimal query and term weighting involves fitness function that is based on full relevance information

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Abstract

Reports on the 1st year (from Sep 1995) of The British Library Research and Innovation Centre supported EARL project (Electronic Access to Resources in Libraries) which aims to improve electronic network and services and facilities for UK public libraries. Details the EARL pilot development and project workplace, its objectives, project methodology, management and financial control, information dissemination, EARL services developed, and the user monitoring/evaluation process. Reviews future needs and development of a business plan

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Abstract

Nowadays, users of information services are faced with highly decentralised, heterogeneous document sources with different content analysis. Semantic heterogeneity occurs e.g. when resources using different systems for content description are searched using a simple query system. This report describes several approaches of handling semantic heterogeneity used in projects of the German Social Science Information Centre

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Abstract

"Europeana.eu is about ideas and inspiration. It links you to 6 million digital items." This is the opening statement taken from the Europeana WWW-site (http://www.europeana.eu/portal/aboutus.html), and it clearly is concerned with the mission of Europeana - without, however, being over-explicit as to the precise nature of that mission. Europeana's current logo, too, has a programmatic aspect: the slogan "Think Culture" clearly again is related to Europeana's mission and at same time seems somewhat closer to the point: 'thinking' culture evokes notions like conceptualisation, reasoning, semantics and the like. Still, all this remains fragmentary and insufficient to actually clarify the functional scope and mission of Europeana. In fact, the author of the present contribution is convinced that Europeana has too often been described in terms of sheer quantity, as a high volume aggregation of digital representations of cultural heritage objects without sufficiently stressing the functional aspects of this endeavour. This conviction motivates the present contribution on some of the essential functional aspects of Europeana making clear that such a contribution - even if its author is deeply involved in building Europeana - should not be read as an official statement of the project or of the European Commission (which it is not!) - but as the personal statement from an information science perspective! From this perspective the opening statement is that Europeana is much more than a machine for mechanical accumulation of object representations but that one of its main characteristics should be to enable the generation of knowledge pertaining to cultural artefacts. The rest of the paper is about the implications of this initial statement in terms of information science, on the way we technically prepare to implement the necessary data structures and functionality and on the novel functionality Europeana will offer based on these elements and which go well beyond the 'traditional' digital library paradigm. However, prior to exploring these areas it may be useful to recall the notion of 'knowledge' that forms the basis of this contribution and which in turn is part of the well known continuum reaching from data via information and knowledge to wisdom.

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Abstract

The future of bibliographic control will be collaborative, decentralized, international in scope, and Web-based. Its realization will occur in cooperation with the private sector, and with the active collaboration of library users. Data will be gathered from multiple sources; change will happen quickly; and bibliographic control will be dynamic, not static. The underlying technology that makes this future possible and necessary-the World Wide Web-is now almost two decades old. Libraries must continue the transition to this future without delay in order to retain their relevance as information providers. The Working Group on the Future of Bibliographic Control encourages the library community to take a thoughtful and coordinated approach to effecting significant changes in bibliographic control. Such an approach will call for leadership that is neither unitary nor centralized. Nor will the responsibility to provide such leadership fall solely to the Library of Congress (LC). That said, the Working Group recognizes that LC plays a unique role in the library community of the United States, and the directions that LC takes have great impact on all libraries. We also recognize that there are many other institutions and organizations that have the expertise and the capacity to play significant roles in the bibliographic future. Wherever possible, those institutions must step forward and take responsibility for assisting with navigating the transition and for playing appropriate ongoing roles after that transition is complete. To achieve the goals set out in this document, we must look beyond individual libraries to a system wide deployment of resources. We must realize efficiencies in order to be able to reallocate resources from certain lower-value components of the bibliographic control ecosystem into other higher-value components of that same ecosystem. The recommendations in this report are directed at a number of parties, indicated either by their common initialism (e.g., "LC" for Library of Congress, "PCC" for Program for Cooperative Cataloging) or by their general category (e.g., "Publishers," "National Libraries"). When the recommendation is addressed to "All," it is intended for the library community as a whole and its close collaborators.
The Library of Congress must begin by prioritizing the recommendations that are directed in whole or in part at LC. Some define tasks that can be achieved immediately and with moderate effort; others will require analysis and planning that will have to be coordinated broadly and carefully. The Working Group has consciously not associated time frames with any of its recommendations. The recommendations fall into five general areas: 1. Increase the efficiency of bibliographic production for all libraries through increased cooperation and increased sharing of bibliographic records, and by maximizing the use of data produced throughout the entire "supply chain" for information resources. 2. Transfer effort into higher-value activity. In particular, expand the possibilities for knowledge creation by "exposing" rare and unique materials held by libraries that are currently hidden from view and, thus, underused. 3. Position our technology for the future by recognizing that the World Wide Web is both our technology platform and the appropriate platform for the delivery of our standards. Recognize that people are not the only users of the data we produce in the name of bibliographic control, but so too are machine applications that interact with those data in a variety of ways. 4. Position our community for the future by facilitating the incorporation of evaluative and other user-supplied information into our resource descriptions. Work to realize the potential of the FRBR framework for revealing and capitalizing on the various relationships that exist among information resources. 5. Strengthen the library profession through education and the development of metrics that will inform decision-making now and in the future. The Working Group intends what follows to serve as a broad blueprint for the Library of Congress and its colleagues in the library and information technology communities for extending and promoting access to information resources.

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Abstract

Reports on the findings of the major study, carried out by the Royal Society, etc. and prompted by the concern felt about the increasing signs of strain in the scientific, technical and medical information systems (STM) and the consequences for technical research. The report is a follow up to the earlier study (BLRDD report 5626) with the aim of covering the trends which have developed since the earlier report was published (online information retrieval, electronic networks, CD-ROM etc.). The study covers: the nature of the UK scientific, technical and medical information system; users of the STM information system; the changing role of libraries and librarians with regard to periodicals, books and other services; economic aspects of the STM information system (research libraries, primary publishing, secondary publishing, and value of scientific research); economic aspects of the STM information system, and perceived problems and potential changes with regard to primary periodicals, electronic periodicals, user interaction, and funding of the services. The data derived from the user survey and the library survey are published in full with analysis. Presents the conclusions and recommendations arising from the study

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Content

Enthält die Beiträge: SPECHT, G.: Architekturen von Multimedia-Datenbanksystemen zur Speicherung von Bildern und Videos; MALSY, M. u.a.: Unterstützung des strutkturierten Zugriffs auf MPEG Videos in einem Multimedia-Datenbankmanagementsystem; ARLT, B. u. R.W. BRAUSE: Image encoding by independent principal components; DITTMANN, J. u.a.: Objektverfolgung und Szenenerkennung in Video auf Basis von Kantendetektion; THOMAS, P.: Verteilte digitale Medienarchivsysteme für kooperative Fernsehproduktion; DAMMEYER, A. u.a.: Videoanalyse mit DiVA

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Abstract

Reports results of a study to explore the possibilities of extending the use of structured abstracts (which use subheadings such as background, aims, participants method, results, conclusions) of the type often found in biomedical periodicals; to test whether or not such structured abstracts are more easily searched, comprehended and recalled than abstracts set in the traditional manner; and to examine readers' preferences for different typographic settings for structured abstracts. Results indicated: that it is possible to produce structured abstracts for periodical articles in the social sciences; and that such abstracts may be easier to read, search and recall than abstracts presented in the traditional manner. Suggests that abstracts use 6 subheadings (background, aims, method, results, conclusions, and, optionally, comment) and recommends that these subheadings are conveyed in bold capital letters and, ideally, set apart from the main text by printer's rules

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Abstract

This technical report provides guidelines for the content, organization, and presentation of indexes used for the retrieval of documents and parts of documents. It deals with the principles of indexing, regardless of the type of material indexed, the indexing method used (intellectual analysis, machine algorithm, or both), the medium of the index, or the method of presentation for searching. It emphasizes 4 processes essential for all indexes: comprehensive design, vocabulary management, and the provision of systax. It includes definitions of indexes and of their parts, attributes, and aspects; a uniform vocabulary; treatment of the nature and variety of indexes; and recommendations regarding the design, organization, and presentation of indexes. It does not suggest guidelines for every detail or technique of indexing. These can be determined for each index on the basis of factors covered in the technical report