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New Review of Hypermedia and Multimedia 7

Editors:Douglas Tudhope
Publisher:Taylor & Francis
Standard No:ISSN 1361-4568 (print); ISSN 1740-7842 (online)
Links:Table of Contents
  1. HYPERMM 2001 Volume 7

HYPERMM 2001 Volume 7

Editorial BIB 1-5
  Doug Tudhope; Daniel Cunliffe
Dennotative and Connotative Semantics in Hypermedia: Proposal for a Semiotic-Aware Architecture BIBA 7-37
  Frank Nack; Lynda Hardman
In this article we claim that the linguistic-centred view within hypermedia systems needs refinement through a semiotic-based approach before real interoperation between media can be achieved. We discuss the problems of visual signification for images and video in dynamic systems, in which users can access visual material in a non-linear fashion. We describe how semiotics can help overcome such problems, by allowing descriptions of the material on both denotative and connotative levels. Finally we propose an architecture for a dynamic semiotic-aware hypermedia system.
The Role of High-Level and Low-Level Features in Style-based Retrieval and Generation of Multimedia Presentations BIBA 39-65
  Frank Nack; Menzo Windhouwer; Lynda Hardman; Eric Pauwels; Michele Huijberts
In this article we argue that the automatic generation of dynamic multimedia presentation requires both low-level collections of objective measurements for media units representing prototypical style elements, and high-level conceptual descriptions supporting contextual and presentational requirements. Only the combination of both facilitates the retrieval of adequate material and its user-centred presentation. We discuss the problems of visual signification for images in dynamic systems and explain how a combined approach can help overcome such problems. We then propose an architecture for such a system and present its applicability for a museum-oriented multimedia system with a working example.
Faceted Classification as a Basis for Knowledge Organisation in a Digital Environment: The Bliss Bibliographic Classification as a Model for Vocabulary Management and the Creation of Multidimensional Knowledge Structures BIBA 67-102
  Vanda Broughton
The library classification scheme was the first means of subject access to information, but is largely disregarded as a tool for the management of electronic resources; modern classifications built on facet analytical principles are more appropriate to this purpose than is generally realised. Faceted classifications as exemplified by the Bliss Bibliographic Classification (BC2) are powerful tools for the management of vocabulary, characterised by a rigorous analytical approach to terms, and the clear identification of semantic and syntactic relationships and structures. The philosophy and function of BC2 are described, as is the process of building a knowledge structure on facet analytical principles. The range of related functions of such structures when employed as knowledge management tools (as classification, thesaurus, subject heading list, browsable index) is considered, as is the potential of facet analytical knowledge structures for the management of digital materials. Facet analysis is regarded as a powerful methodology for the creation of structures appropriate to specific retrieval requirements in a range of contexts, with emphasis on the problems of complex subject description and retrieval and multidimensionality.
A Prototype Multilingual Document Browser for Ancient Greek Texts (Technical Note) BIBA 103-113
  Geoff Rydberg-Cox
This paper describes a prototype multilingual keyword extraction and information browsing system for texts written in Classical Greek. This system automatically extracts keywords from Greek texts using a tf x idf keyword discovery routine, clusters documents into thematically coherent groups based on these keywords, translates the keywords into English, and presents this information in two different formats so that users with limited knowledge of Ancient Greek can browse the documents and orient themselves to important concepts in the collections of a digital library.
Design and Architecture of a Digital Music library on the Web (Technical Note) BIBA 115-126
  John Papadakis; Christos Dougileris
In this paper, a Web-based digital music library based on a three-tier architecture is presented. The digital library's primary goal is to efficiently manage distributed mp3 file collections. The proposed methodology makes use of the metadata existing inside the ID3 tag of each mp3 file. Such information is extracted from the corresponding files and stored in separate, XML-based data structures, which are part of the overall distributed information retrieval module. The digital library's actual data is kept at the back-end in a distributed fashion. Communication between the layers of the digital library and the various architectural components that reside at the middle layer is facilitated through the employment of the XML standard.
GeoWorlds: Integrating GIS and Digital Libraries for Situation Understanding and Management BIBA 127-152
  Robert Neches; Ke-thai Yao; Alejandro Bugacov; Vished Kumar; Ragy Eleish
Helping organizations to marshal, analyze, discuss, and act on all of the available information about a situation playing out over space and time is a critical problem. GeoWorlds (http://www.isi.edu/geoworlds) is a component-based information management system that addresses this issue. It brings together with information analysis, retrieval and collaboration tools and integrates digital library, geographic information systems (GIS), and remote sensor data management technologies. It provides three key services: 1) rapidly assembling a custom repository of geographic information about a region, 2) bi-directionally linking it to collections of document-based information from the World-Wide Web, and 3) monitoring real-time sensor data for information that might change conclusions or decisions formed on the basis of this rich information set. GeoWorlds framework enables synchronous and asynchronous collaboration over finding, filtering, organizing and visualizing the needed information.
Finding Hyper-structure in Space: Spatial Parsing in 3D BIBA 153-183
  Michael Bang Nielsen; Peter Orbaek
Spatial parsers augment spatial hypermedia systems by letting the computer perceive the informal - but visually apparent - groupings formed by humans working with a spatial hypermedia tool. A number of research systems implementing 2D spatial parsing have been described in recent years. This paper extends spatial parsing to 3D and describes an implementation of a tailorable 3D spatial parser for the Topos system: a 3D information organization tool for use on desktops, interactive whiteboards and tables. The parser maintains a proximity graph of the heterogeneous 3D objects and applies structure experts and global repression and reinforcement techniques to this graph to find structures. A number of issues pertaining to 3D parsing as opposed to 2D parsing are discussed. The paper also presents a simple and efficient 2D parser for 3D scenes and compares it to the true 3D parser.
Using Hypermedia in Requirements Engineering Practice BIBA 185-205
  Hermann Kaindl
In the literature, proposals can be found to use hypermedia for requirements engineering. The major technical and commercial constraints for wide-spread application are removed now, but there is little knowledge generally available yet on how exactly such approaches can be usefully applied in industrial practice, or what the advantages and issues to be solved are.
   So, we report on a case study of using hypermedia "real-time" in the requirements phase of an important real-world project inside our environment, where several ways of applying hypermedia were tried with varying success. Since the resulting hypermedia repository can be fully automatically exported into a Web representation, several versions were made available on the intranet at different stages. While this case study may serve as a data point in the space of such applications, we also discuss reflections on this experience with the motivation to help practitioners apply hypermedia successfully in requirements engineering. In a nutshell, this paper presents some experience from using hypermedia in requirements engineering practice, and a critical discussion of advantages and issues involved.