By Topic

Research and Technology Advances in Digital Libraries, 1999. Proceedings. IEEE Forum on

Date 19-21 May 1999

Filter Results

Displaying Results 1 - 25 of 30
  • Proceedings IEEE Forum on Research and Technology Advances in Digital Libraries [front matter]

    Save to Project icon | Request Permissions | PDF file iconPDF (148 KB)  
    Freely Available from IEEE
  • Digital Libraries Initiative, Phase 2

    Page(s): 216
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (74 KB)  

    Summary form only given, as follows. The Digital Libraries Initiative, Phase 2 is a multiagency Federal initiative for conducting research leading to the next generation of digital libraries, advancing the use and usability of globally distributed, networked information resources, and encouraging existing and new communities to focus on innovative application areas. Since digital libraries are meant to provide intellectual access to stores of information, research in this initiative is concerned with developing concepts, technologies and tools to gain use of the fuller knowledge and meaning inherent in digital collections. For example, for users this means intelligent search, retrieval, organization and presentation tools and interfaces; for content and collections providers this means new information types, structures, document encoding and metadata for enhancing context; for system builders this means designing hardware and software systems capable of interpreting and implementing users?? requests by locating, federating and querying collections to provide the user with the structured information sought. Panel speakers will be be drawn from the recent DLI-2 awardees and will represent a broad spectrum of digital library research. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Author index

    Page(s): 217
    Save to Project icon | Request Permissions | PDF file iconPDF (130 KB)  
    Freely Available from IEEE
  • Concept-based browsing in video libraries

    Page(s): 105 - 115
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (144 KB)  

    Digital library applications based on huge amounts of digital video data require efficient browsing and searching mechanisms for the extraction of relevant information. To avoid information overload, a browsing system needs to preselect shots of interest from the database in a user-adequate manner. A retrieval engine for video browsing is proposed that offers conceptual, content-based access to videos. It calculates relevance values for the results of a conceptual query by feature aggregation on video shot granularity. This engine is embedded in a browsing system architecture which was extended with an intelligent client buffer strategy and admission control mechanism aiming for browsing specific requirements. Thus, we support continuous presentation of time-dependent media and reduce startup latency View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • MD2L: content description of multimedia documents for efficient process and search/retrieval

    Page(s): 200 - 213
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (188 KB)  

    Analogous to the meta-data that composes “data about the data” for library/information collections, there is a growing interest in employment of “bits about the bits” for compressed audio and video documents. The idea is to provide content description, or meta-data, of compressed multimedia documents, so that users could make use of such description to search and retrieve multimedia data/documents as they do with Dublin Core bibliographic information to library collections. An ongoing endeavor undertaken by the Motion Picture Expert Group (MPEG) is to call for a new international standard known as MPEG-7. When it is finalized in 2001, MPEG-7 is expected to provide standardized schemes for concise and unambiguous multimedia content description for different types of multimedia data/documents in a wide range of applications. Such content description should be denoted in the standardized description language, so as to support machine parsing and interoperability. We report our recent work related to MPEG-7. We present the Multimedia Description Definition Language (MD2L), which provides a set of formal notations for defining Description Scheme Definition (DSD) for various types of media data such as audio, video, etc. We also discuss our on-going implementation of Java based mechanisms for parsing and indexing/searching MD2L description View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Semantic mediation for cooperative spatial information systems: the AMUN data model

    Page(s): 16 - 27
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (168 KB)  

    We present the on-going research project ISIS (Interoperable Spatial Information Systems) which is a semantic mediation approach to support geographical spatial information systems interoperability. The diversity of spatial information systems (GIS) and data models has created a need for tools and methodologies to allow cooperation or interoperation among GIS. In particular, mediation based approaches, which aim at achieving autonomy, extensibility and flexibility of participant systems, will become increasingly popular in emerging Web based processing environments. The underlying approach of ISIS combines techniques from the domains of traditional interoperable information systems, spatial data modeling and multi agent systems. We describe the AMUN data model which provides a foundation for resolving semantic discrepancies among systems and for modeling cooperative GIS View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of a digital mathematical library for science, technology and education

    Page(s): 118 - 128
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (332 KB)  

    The concept of a digital library is of proven worth because of its ability to provide dramatic capabilities that are impossible with traditional print media. We are interested in providing such capabilities for scientific, technical and educational users of mathematical reference data. Our attention is focused on the highly specialized field of mathematics that is concerned with the properties, application and computation of the elementary and higher mathematical functions. Calling upon domain experts worldwide for assistance, the National Institute of Standards and Technology is conducting an ambitious project to construct, ab initio, a comprehensive and authoritative Web resource on this subject. The need to make effective use of the latest developments in digital library research is a major focus, as is the development of content. We discuss our approach to such difficulties as the representation, display and manipulation of symbolic expressions, numerical data and graphical visualizations, and we describe a prototype Web site that has been constructed to test, evaluate and advance the NIST Digital Library of Mathematical Functions project View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Ontology and metadata creation for the Poseidon distributed Coastal Zone Management System

    Page(s): 180 - 189
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (144 KB)  

    The objective of the Poseidon Coastal Zone Management System project is to develop a distributed data and software architecture to locate, retrieve, utilize, and visualize information about the coastal ocean environment. The article focuses on the issues related to efficiently identifying and creating the data needed for a given task. Since scientific data sets often do not contain information about the environment in which the data was obtained, we need a method of distinguishing data based on external information, or metadata. This metadata needs to be standardized in order to facilitate searching. While many metadata standards exist, none of them are adequate for representing all the information needed for coastal zone management. We have therefore implemented existing metadata standards in an expandable object oriented structure known as the Warwick Framework. Furthermore, since metadata is expensive and tedious to produce, we have developed a Web based software tool that simplifies the process and reduces the storage of redundant information. While we can search the metadata for the information we need, we still need a common vocabulary, or ontology, to ensure that we can identify data unambiguously. Since no existing vocabulary encapsulates all aspects of the ocean sciences and ocean systems management, we have facilitated the production of such a resource by creating a Web based tool that will allow specialists with the requisite domain knowledge to populate the ontology independently. The tool handles all the logistical issues of storage, maintenance and distribution View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Distributed knowledge-based parsing for document analysis and understanding

    Page(s): 6 - 15
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (248 KB)  

    Document Analysis and Understanding (DAU) is a complex AI application with high industrial impact. For the increasing demands upon the bandwidth and quality of the analysis it is crucial to enable different analysis modules to collaborate. For making collaboration possible, we first examine the question of whether there exists a common ontological basis which can serve as a platform for communication of different DAU modules. Once communication is enabled, we investigate the second question, how DAU modules originally designed as stand-alone systems must be modified in order to benefit from collaboration with others View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The IRCAM multimedia library: a digital music library

    Page(s): 129 - 140
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (348 KB)  

    The paper describes the transition of the IRCAM Music Library from a traditional setup to one tightly integrating digital technologies: online collections of self-describing multimedia objects, networked access and delivery on LANs and WANs, search tools and interfaces. The goal of this one-year project had been to bring together heterogeneous collections of documents (books, scores, periodicals, commercial and unpublished music recordings, videos...) allowing for their combined use by library patrons on- and off-site, with due consideration for the intellectual property rights of each individual document. The successful integration of these collections has increased public use of the library and influenced scholar writing of musical analyses and the production of musical educational tools. While part of its collections are on paper and will remain so due to technical and legal considerations, other collections are available only in digitized form, with computer search tools and networked delivery View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adjustable filmstrips and skims as abstractions for a digital video library

    Page(s): 98 - 104
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (448 KB)  

    Filmstrips and video skims are two presentation schemes for abstracting information in a digital video segment. Filmstrips present information all at once in a static form, while video skims are played and disclose information temporally. The paper discusses the evolution of the filmstrip and skim interfaces in the Informedia Digital Video Library. Filmstrips are commonly deployed as interfaces for video and image libraries, but we found initial Informedia filmstrips and skims received little use. We discuss the interface considerations motivating the redesign of filmstrips and skims to adjust their presentations dynamically based on user context and preference View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digital Earth

    Page(s): 96
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (96 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • WebSCSA: Web search by constrained spreading activation

    Page(s): 163 - 170
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (104 KB)  

    We present WebSCSA, an experimental Web search system based on the Constrained Spreading Activation model. WebSCSA performs an autonomous search by navigation using an algorithm based on the Constrained Spreading Activation model to find Web pages that are similar to those pointed out by the user as relevant to his information need. We also present the results of an experimental investigation into WebSCSA's effectiveness. We tested whether WebSCSA improves retrieval of relevant information on top of Web search engine results and how well WebSCSA serves as an agent browser for the user. The results are promising, and show that there is much potential for further research on the use of this technique to search the Web View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Refining query previews techniques for data with multivalued attributes: the case of NASA EOSDIS

    Page(s): 50 - 59
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (204 KB)  

    Query Previews allow users to rapidly gain an understanding of the content and scope of a digital data collection. These previews present overviews of abstracted metadata, enabling users to rapidly and dynamically avoid undesired data. We present our recent work on developing query previews for a variety of NASA EOSDIS situations. We focus on approaches that successfully address the challenge of multi-valued attribute data. Memory requirements and processing time associated with running these new solutions remain independent of the number of records in the dataset. We describe two techniques and their respective prototypes used to preview NASA Earth science data View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Full text access may be available. Click article title to sign in or learn about subscription options.
  • Full text access may be available. Click article title to sign in or learn about subscription options.
  • Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digital sky

    Page(s): 148
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (44 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The visual specification of context

    Page(s): 28 - 36
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (100 KB)  

    We introduce a simple and novel visual technique for the specification of context in structured documents called T-graphs that we base on T-configurations in document trees. The technique is implemented in the current version of DESIGNER. Although we are applying this technique in the specification of context-dependent style sheets for HTML, XML, and SGML documents, it is clear that it can be used in other environments such as query specification for structured documents and for computer program transformations. We compare T-graphs with the context specification techniques found in other style-sheet systems and we also provide examples of context that we can and cannot specify with T-graphs. Although T-graphs are restrictive, they lend themselves to visual construction and modification, our main requirement when we designed this context specification method. We also investigate the time and space complexity of T-graph matching, a necessity for efficient implementation View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A plea for publishing without loss of data

    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (12 KB)  

    Present habits of publication (print and electronic) are unsuitable in experimental sciences if they restrict themselves to full text with links and pixel graphics, because all primary data are lost. Primary high-tech data are highly interactive at the site of data production. The tools for their full communication for critical analyses, use and data mining are available and so are the data storage capacities, but these features are not yet used in publications, even though the feasibility is amply shown in databases and on the Internet. The authors try to change this disastrous situation in a comprehensive way by pointing to the available data-interactive publishing devices. This covers fully interactive hypermolecules, hyperspectra, chemometric data sets, and complex 3D objects. The data formats are XML/CML and the widespread PDB/VRML/JCAMP-DX standards rather than TIFF/GIF/JPEG projections. The present hesitancy of authors and publishers to accept the superior techniques has to be overcome by teaching, advertising and various other aids View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Extending the role of metadata in a digital library system

    Page(s): 190 - 199
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (168 KB)  

    We describe an approach to the development of a digital library system that is founded on a number of basic principles. In particular, we discuss the critical role of metadata in all aspects of the system design. We begin by describing how the notion of metadata is sometimes interpreted and go on to discuss some of our early experiences in a digital conversion project. We report on the Profiles in Science project, which is making the archival collections of prominent biomedical scientists available on the World Wide Web. We discuss the principles that are used in our system design, illustrating these throughout the discussion. Our approach has involved interpreting metadata in its broadest sense. We capture data about the items in our digital collection for a a variety of purposes and use those data to drive the entire system. Further, we have designed our overall system architecture such that it can accommodate changes while still ensuring the persistence of the underlying data View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • System and user attributes associated with successful searching

    Page(s): 60 - 70
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (84 KB)  

    A study was performed to assess system and user attributes associated with successful searching. A group of highly experienced retrieval system users were given eight queries-half to be completed with a Boolean system and the other half to be completed with a natural language system-and asked to identify “instances” of information related to a topic. A variety of demographic, experience, cognitive, personality, search mechanics, and user satisfaction attributes were measured and evaluated for association with “instance recall.” The system oriented analysis showed user preference for the Boolean system but equivalent instance recall with the two systems. The user oriented analysis showed improved performance with occupation type, user satisfaction, and number of search terms per cycle. A variety of cognitive and personality attributes did not show any association with better searching View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Conceptual information retrieval of technical papers for digital libraries

    Page(s): 171 - 178
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (180 KB)  

    We propose a novel information retrieval (IR) method using semantic information from technical papers. The proposed method is suitable for use in digital libraries (DL). Users of digital libraries need to retrieve information which meets their semantic requirements. An important problem is the reduction of retrieval errors caused by differences in requests among individual users. To solve this problem, we used some techniques of natural language processing, and dictionaries that describe the relations between words and concepts. We describe the details of the proposed method and show experimental results that reveal the effectiveness of the method. We focus on technical papers written in Japanese View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Full text access may be available. Click article title to sign in or learn about subscription options.