Search (40 results, page 1 of 2)

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Abstract

Final report of a British Library supported conducted at University College, London, computer science department, the aim of which was to build a demonstration and test bed facility for online access to a large electronic library of multimedia documents. The project was a pilot experiment in the use of a database of compound documents (text and images) in the Open Document Architecture format. The database used is part of the contents of information in the Journal of the American Chemical Society. Discusses the overall view of the project with particular reference to the WAIS information retrieval server which was developed and used

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Abstract

Models administrative and operating costs surrounding a hypermedia database and determines 7 conditions for the cost justification of hypermedia; higher linking costs proportionately reduce the total number of links implemented; increasing the benefits from using the database increases the total number of links proportionately; increasing database size results in an increase in the total number of links implemented; if the database user learns from the database slowly, then a larger number of links need to be provided: the maximum size of databases which is justified on cost will increase as the average cost of linking each node becomes smaller; the total benefit from usage required in order to cost justify a database will decrease as the average cost of linking each node becomes smaller and the maximum size of database which is cost justified will increase rapidly as the learning rate increases. The learning rate can be increased by construction of links and nodes so that they are maximally informative

Date

7. 3.1999 14:22:45

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Content

Enthält u.a. die folgenden Beiträge: HORNUNG, C. u. A. SANTOS: A proposal for a reference model for cooperative hypermedia systems; HERZNER, W. u. E. HOCEVAR: CDAM: Compound Document Access and Management; MARMOLIN, H.: Multimedia from the perspectives of psychology; FROHLICH, D.M.: The design space of interfaces; TOOK, R.K.: Out of the window: a multi-medium; KIRSTE, T. u. W. Hübner: An open hypermedia system for multimedia applications; GOBLE, C. et al.: The Manchester Multimedia Information System; RHINER, M. u. P. STUCKI: Database rewuirements for multimedia applications; BELL, D. u. P. JOHNSON: Support for the authors of multimedia tutorials; WARD, P. u. F. ARSHAD: Interactive multimedia information systems for education

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Abstract

Reports results of the MARS project, conducted at Illinois University, to bring together researchers in the fields of computer vision, compression, information management and database systems with the goal of developing an effective multimedia database management system. Describes the first step, involving the design and implementation of an image retrieval system incorporating novel approaches to image segmentation, representation, browsing and information retrieval supported by the developed system. Points to future directions for the MARS project

Date

22. 9.1997 19:16:05

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Abstract

As the LoC moves to make massive amounts of multimedia items available over networks, it must consider the challenge these new digital collections present for navigation. Discusses the search needs of the LC's digital collections audience and how relevant searching aids might be provided for them. Factors to be considered include: the variety of search needs of users; the different technology levels of users; and the need for the provision of both free text and structured searching. Considers the design of graphical user interfaces and the role of language in the successful navigation of a large database

Date

22. 2.1996 11:37:48

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Classification

006.7 22

Date

7. 3.2007 19:30:22

DDC

006.7 22

Footnote

Rez. in: JASIST 58(2007) no.3, S.457-458 (A.M.A. Ahmad): "The concept of the semantic web has emerged because search engines and text-based searching are no longer adequate, as these approaches involve an extensive information retrieval process. The deployed searching and retrieving descriptors arc naturally subjective and their deployment is often restricted to the specific application domain for which the descriptors were configured. The new era of information technology imposes different kinds of requirements and challenges. Automatic extracted audiovisual features are required, as these features are more objective, domain-independent, and more native to audiovisual content. This book is a useful guide for researchers, experts, students, and practitioners; it is a very valuable reference and can lead them through their exploration and research in multimedia content and the semantic web. The book is well organized, and introduces the concept of the semantic web and multimedia content analysis to the reader through a logical sequence from standards and hypotheses through system examples, presenting relevant tools and methods. But in some chapters readers will need a good technical background to understand some of the details. Readers may attain sufficient knowledge here to start projects or research related to the book's theme; recent results and articles related to the active research area of integrating multimedia with semantic web technologies are included. This book includes full descriptions of approaches to specific problem domains such as content search, indexing, and retrieval. This book will be very useful to researchers in the multimedia content analysis field who wish to explore the benefits of emerging semantic web technologies in applying multimedia content approaches. The first part of the book covers the definition of the two basic terms multimedia content and semantic web. The Moving Picture Experts Group standards MPEG7 and MPEG21 are quoted extensively. In addition, the means of multimedia content description are elaborated upon and schematically drawn. This extensive description is introduced by authors who are actively involved in those standards and have been participating in the work of the International Organization for Standardization (ISO)/MPEG for many years. On the other hand, this results in bias against the ad hoc or nonstandard tools for multimedia description in favor of the standard approaches. This is a general book for multimedia content; more emphasis on the general multimedia description and extraction could be provided.

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Abstract

Presents a model of hypermedia that allows the combination of 'hyperstructured' information with dynamic multimedia information. The model is derived by extending the Dexter hypertext reference model and the Centrum voor Wiskunde en Informatica Multimedia Interchange Format (CMIF) multimedia model. Explains how the CMIF multimedia model builds on the model provided by Dexter. The Amsterdam hypermedia model enables the description of structured multimedia documents, incorporating time at a fundamental level and extending the hypertext notion of links to time-based media and compositions of different media

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Abstract

This topical dictionary covers all aspects of telecommunication and multimedia applications, including personal computing and Windows terms. A total of 25.000 headwords and 11 tables cover ISDN, radio telephony, net and Internet technology, and net management concepts and standards. Numerous abbreviations are also listed with explanatory comments and cross-references to norms and standards, and tables of all CCITT norms are given in an appendix. More than just a dictionary, this book will be an indispensible reference for all who work in telecommunications and information technology

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Abstract

Reviews TFPL's The Multimedia Yearbook and CD-ROM Directory on CD-ROM, a combination of 2 printed directories, the Multimedia Yearbook and the CD-ROM Directory. Information is provided on companies involved in the multimedia and CD-ROM business and on commercial CD-ROM titles available worldwide with supporting details such as publishers' addresses. The easy to use combination of title and industry data makes this disc likely to become the standard reference source on CD-ROMm especially in the UK

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Abstract

Although database technology is well established, multimedia storage and access of digital image, sound and video material is much more recent. Although most film and video material is intrinsically multimedia it is not interactive. Unlike traditional data, multimedia has a very free format and has mostly lost the constraint of human language. The problems of interactive multimedia publications arise not just in user access but from the internal structuring of the database. Discusses topics related to methods of access to data and the design approaches to this covering multimedia material, database technology, indexing and referencing techniques and design and production

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Abstract

By referring to existing prototypes and systems, in this paper the advantages and disadvantages of computer and multimedia technologies in the development of reference works such as dictionaries and encyclopedias are discussed. Some positive aspects of multimedia reference works are the possibility of accessing the same entry through a number of keys and research mechanisms, the possibility of 'navigating' through the semantic structure of the work itself, and even crossing the borders between different underlying structures. Some systems permit users to select the type of information they desire regarding a certain entry. This characteristics is particularly valuable in educational systems since it relieves users of the not so trivial task of autonomously extracting the information they need from a text which, because of the need for both conciseness and thoroughness, can be cryptic. In addition, some of theses systems not only include texts and illustrations but also audiovisual material, tutorials, and multimedia sequences with different educational and informative aims. Finally, the cost of, and time taken in, producing works of this type (except motion video production!), are potentially less than for analogous printed works with consequent repercussions on distribution costs and the frequency with which works can be updated. The major limits of multimedia dictionaries and encyclopedias are practical ones, such as the scarce availability and standardization of suitable hardware platforms. Furthermore, hardware and software constraints impose compromises in terms of quality of images and audio, quality and quantity of motion video

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Abstract

Examines the current practices of WWW publishing and highlights its adequacies and drawbacks. Demonstrates the need and advantages of using a hypermedia database system to manage Web publications and briefly describes the design and prototyping of the D4W3 hypermedia database system

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Footnote

Rez. in: Database 19(1996) no.2, S.102 (J.A. Copler)

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Abstract

A database management system is a general-purpose software system that facilitates the processes of defining, constructing, and manipulating databases for various applications. This article investigates the role of data management in multimedia digital libraries, and its implications for the design of database management systems. The notions of content abstraction and content independence are introduced, which clearly expose the unique challenges (for database architecture) of applications involving multimedia search. A blueprint of a new class of database technology is proposed, which supports the basic functionality for the management of both content and structure of multimedia objects

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Abstract

In this article, we introduce a user preference model contained in the User Interaction Tools Clause of the MPEG-7 Multimedia Description Schemes, which is described by a UserPreferences description scheme (DS) and a UsageHistory description scheme (DS). Then we propose a user preference learning algorithm by using a Bayesian network to which weighted usage history data on multimedia consumption is taken as input. Our user preference learning algorithm adopts a dynamic learning method for learning real-time changes in a user's preferences from content consumption history data by weighting these choices in time. Finally, we address a user preference-based television program recommendation system on the basis of the user preference learning algorithm and show experimental results for a large set of realistic usage-history data of watched television programs. The experimental results suggest that our automatic user reference learning method is well suited for a personalized electronic program guide (EPG) application.

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Abstract

The emerging information superhighway will bring to homes and business the ability to access and manipulate a vast amount of information stored in a variety of forms in different databases. Multimedia systems facilitate the access and manipulation of such information across high-speed networks. Multimedia database systems (MDSs) are a new generation of database systems that will provide a unified and interactive framework for users to request and integrate information stored in a variety of media. Applications of such systems in scientific research, commercial and business activities (via interactive TV systems), law enforcement, and military operations are numerous an obvious. This book presents basic research on the theory, implementations, and applications of MDSs

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Abstract

Reviews the current state of the art in the field of electronic publishing of periodical articles in full text, with particular reference to the experiences of Elsevier Science. Distinguishes between 4 types of full text electronic publishing: bibliographic data, for example CAPCAS, with SGML type electronic bibliographic records for articles in Elsevier journals; electronic access to an existing periodical on a single title basis, similar to the way in which Elsevier provides access to articles in the well established printed periodical Nuclear Physics; enhancement of an existing periodical through expanded hypertext links, in the same way that Immunology Today Online is provided with value added features impossible to emulate in a printed periodical; and the TULIP model, an Elsevier initiative which enables large scale full text document delivery of electronic periodicals via unedited ASCII full text created by OCR and cover to cover 300 dpi bitmapped page images. Pays tribute to other initiatives in the field, including: document delivery services such as UnCover and the British Library's Inside Information; Digital Libraries Initiative; Informedia Digital Video Library Project; Stanford Integrated Digital Library Project; California University at Berkeley Digital Library Project and Alexandria Digital Library Project. Discusses the future of the information and publishing industries in the light of these developments, noting the implications and problems likely to be encountered and the opportunities for new, multimedia publications

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Abstract

Considers the promise of multimedia CD-ROM database technology for full motion video and the need for a common standard, full motion, processing and programming power before the promise can be fulfilled in practice

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Abstract

State of the art review of the challenges of multimedia for the online industry in terms of: standards, database design; indexing; intellectual property rights; network access and use; the market; and the information industry