Search (46 results, page 1 of 3)

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Abstract

The subject of this book is the relationship between people and interactive media. Written by one of the world's leading experts on this subject, this book explores how hypermedia, groupware, and networks change the way in which people, gropus and organizations work and interact. Its wide-ranging focus discusses the emergence of new technologies and demonstrates by considering real-life case studies the impact each has had on the way we view and interact with colleagues and information. With its emphasis on actual examples of usage, the author provides both practitioners and students with a fascinating glimpse of the future of these media and their applications.

Content

The individual and hypermedia; human-computer interaction - hypertext - multimedia - the group and groupware; group and groupware principles - groupware applications; the organization and networks; the organization - networks and their applications; organizational case studies

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Abstract

Indexing remains one of the most popular tools provided by digital libraries to help users identify and understand the characteristics of the information they need. Despite extensive studies of the problem of automatic index construction for text-based digital libraries, the construction of multimedia digital libraries continues to represent a challenge, because multimedia objects usually lack sufficient text information to ensure reliable index learning. This research attempts to tackle the problem of automatic index construction for multimedia objects by employing Web usage logs and limited keywords pertaining to multimedia objects. The tests of two proposed algorithms use two different data sets with different amounts of textual information. Web usage logs offer precious information for building indexes of multimedia digital libraries with limited textual information. The proposed methods generally yield better indexes, especially for the artwork data set.

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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.
The final part of the book discusses research in multimedia content management systems and the semantic web, and presents examples and applications for semantic multimedia analysis in search and retrieval systems. These chapters describe example systems in which current projects have been implemented, and include extensive results and real demonstrations. For example, real case scenarios such as ECommerce medical applications and Web services have been introduced. Topics in natural language, speech and image processing techniques and their application for multimedia indexing, and content-based retrieval have been elaborated upon with extensive examples and deployment methods. The editors of the book themselves provide the readers with a chapter about their latest research results on knowledge-based multimedia content indexing and retrieval. Some interesting applications for multimedia content and the semantic web are introduced. Applications that have taken advantage of the metadata provided by MPEG7 in order to realize advance-access services for multimedia content have been provided. The applications discussed in the third part of the book provide useful guidance to researchers and practitioners properly planning to implement semantic multimedia analysis techniques in new research and development projects in both academia and industry. A fourth part should be added to this book: performance measurements for integrated approaches of multimedia analysis and the semantic web. Performance of the semantic approach is a very sophisticated issue and requires extensive elaboration and effort. Measuring the semantic search is an ongoing research area; several chapters concerning performance measurement and analysis would be required to adequately cover this area and introduce it to readers."

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Date

31.12.1998 22:05:21

Footnote

Rez. in: Australian academic and research libraries 29(1998) no.1, S.68 (B. Collins)

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Abstract

Multimedia retrieval is a complex and to some extent still unexplored area. Based on a full year of e-mail requests addressed to a large film archive this study analyses what types of information needs real users have and how these needs are expressed. The findings include that the requesters make use of a broad range of need attributes in specifying their information needs. These attributes relate to the production, content, subject, context and screening of films. However, a few attributes - especially title, production year and director - account for the majority of the attribute instances. Further, as much as 43 per cent of the requests contain no information about the context that gives rise to the request. The current indexing of the archived material is restricted to production-related attributes, and access to the material is, thus, frequently dependent on the archivists' extensive knowledge of the archived material and films in general.

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Date

22. 2.1996 11:37:48

Source

European Research Libraries cooperation. 5(1995) no.2, S.131-134

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Abstract

Reports the basis for a cognitive walkthrough method to support the evaluation of multimedia presentations, e.g. 'how to do it' demonstrations. The walkthrough is founded upon an analysis of the cognitive processes and representations formed by the comprehension of the presentation. Issues include evaluation of attention, topic focus and information types. The walkthrough provides a series of guidelines for evaluation based on these cognitive models, such as the use of media, scripting and presentation techniques. The value of the guidelines is validated by several empirical studies. Reports an eye tracking study providing evidence as to how visual attention responds to multimedia materials. A series of comprehension studies then investigates the effectiveness of a presentation before and after the guidelines were applied. Illustrates with an example evaluation and studies of a commercially produced multimedia CD-ROM presentation on the etiology of cancer

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Abstract

Reviews the particular qualities of the CD-ROM and the World Wide Web on the Internet in their separate operation, and then makes out a case for their combined use. The need for such hybrid systems results from problems of bandwidth across networks, and presumably these difficulties may be resolved as network speeds are upgraded. In the meantime hybrid CD-ROM/WWW applications have the potential to deliver the necessary bandwidth for multimedia combined with the timeliness of the Web. The author draws on experience within AGOCG (the Advisory Group Computer graphics: a JISC initiative)

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Abstract

Provides a quick overview of the historical development of hypertext/hypermedia, and the role of hypermedia in today's dynamic information environment. Actual R&D examples in both PROJECT EMPEROR-1, specifically its hypermedia R&D component experimented on all major delivery system platforms, is discussed and demonstrated, and new opportunities for libraries in the 1990s are further elaborated.

Source

Developments in microcomputing - discovering new opportunities for libraries in the 1990s. 12th Essen Symposium, 23.-26.10.1989. Ed. by A.H. Helal and J.W. Weiss

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Imprint

Englewood, CO : Libraries Unlimited

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Abstract

Reviews studies showing that multimedia may be able to help people learn more information more quickly compared to traditional classroom lectures. Redundant multimedia does not always improve learning compared to monomedia. Specific situations in which multimedia information may help people to learn include: when the media encourage dual coding of information, when the media support one another, and when the media are presented to learners with low prior knowledge or aptitude in the domain being learned. Specific multimedia can be used to help people learn specific kinds of information

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Abstract

Tests were carried out on 120 grade 6 students to compare Compton's Multimedia Encyclopedia on CD-ROM and its printe equivalent in terms of students' ability to recall information and to draw inferences from it. Between-subject varaibles were 3 presentation conditions (printed text with illustrations, text-on-screen, and multimedia-text, still images, and animation) and a retrieval condition (topic retrieved before viewing / topic presented without retrieval). Within-subject variables were text complexity (complex or simple), text type (descriptive or procedural), and measure (propositions recalled versus propositions inferred). Presentation conditions produced no significant main effect although text-on-screen resulted in somewhat higher recall and multimedia resulted in somewhat higher inference scores. Multimedia had the greatest effect in the case of simple topics, and especially the simple procedural topic

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Abstract

Various kinds of knowledge organisation, such as thesauri, are routinely used to label or tag multimedia content such as images and music and to support information retrieval, i.e. user search for such content. In this paper, we outline why this is the case, in particular focusing on the semantic gap between content and concept based multimedia retrieval. We survey some indexing vocabularies used for multimedia retrieval, and argue that techniques such as thesauri will be needed for the foreseeable future in order to support users in their need for multimedia content. In particular, we argue that artificial intelligence techniques are not mature enough to solve the problem of indexing multimedia conceptually and will not be able to replace human indexers for the foreseeable future.

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Abstract

A handful of interactive multimedia products are of interest to libraries now. However, a wide range of products and issues from electronic books and computer games to compression technology and networking will profoundly influence the future of publishing and communications. Identifies key issues and platforms including interactive video, multimedia computers, electronic books and optical discs in the LaserDisc and compact disc formats

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Abstract

Defines multimedia. Discusses the electronic information industry. Describes the technology of multimedia and its applications in education and training, business and professional areas, entertainment and leisure and publishing bookselling and libraries. Discusses future developments

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Source

Computers in libraries. 14(1994) no.6, S.23-26

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Abstract

Discusses the problems and opportunities promised by multimedia CD-ROM data bases from the viewpoint of libraries and information centres. Considers the problems of planning for multimedia and coping with the host of standards that exist.

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Abstract

Gives a backgroud to the growth of multimedia publishing. Reviews major issues in multimedia publishing: standards and formats; its impact on publishers and booksellers; ownership and copyright; involvement of non commercial parties, and networking implications. Assesses the major issues facing libraries and information services. Control mechanisms for multimedia packages will need to be developed

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Abstract

Dealing with some of the effects of multimedia for those involved in the conventional publishing chain. Among the aspects dealt with are the rival formats for distribution and playback; how publishers are apporaching multimedia, and software companies approaching publishing; multimedia music; ownership copyright; and networking implications. Notes the role of SuperJANET in the UK in the area of multimedia networking, and the prospect of publishers beginning to use networks as a way of publishing and distributing their products