Search (701 results, page 1 of 36)

0.085595116 = product of:
  0.17119023 = sum of:
    0.17119023 = sum of:
      0.12199747 = weight(_text_:multimedia in 4888) [ClassicSimilarity], result of:
        0.12199747 = score(doc=4888,freq=8.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.51235074 = fieldWeight in 4888, product of:
            2.828427 = tf(freq=8.0), with freq of:
              8.0 = termFreq=8.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4888)
      0.049192756 = weight(_text_:22 in 4888) [ClassicSimilarity], result of:
        0.049192756 = score(doc=4888,freq=4.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.27358043 = fieldWeight in 4888, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4888)
  0.5 = coord(1/2)

Abstract

This paper centres on the tools for the management of new digital documents, which are not only textual, but also visual-video, audio or multimedia in the full sense. Among the aims is to demonstrate that operating within the terms of generic Information Retrieval through textual language only is limiting, and it is instead necessary to consider ampler criteria, such as those of MultiMedia Information Retrieval, according to which, every type of digital document can be analyzed and searched by the proper elements of language for its proper nature. MMIR is presented as the organic complex of the systems of Text Retrieval, Visual Retrieval, Video Retrieval, and Audio Retrieval, each of which has an approach to information management that handles the concrete textual, visual, audio, or video content of the documents directly, here defined as content-based. In conclusion, the limits of this content-based objective access to documents is underlined. The discrepancy known as the semantic gap is that which occurs between semantic-interpretive access and content-based access. Finally, the integration of these conceptions is explained, gathering and composing the merits and the advantages of each of the approaches and of the systems to access to information.

Date

22. 1.2012 13:02:10

Source

Knowledge organization. 39(2012) no.1, S.13-22

Theme

Multimedia

0.08155378 = product of:
  0.16310756 = sum of:
    0.16310756 = product of:
      0.48932266 = sum of:
        0.48932266 = weight(_text_:3a in 973) [ClassicSimilarity], result of:
          0.48932266 = score(doc=973,freq=2.0), product of:
            0.4353265 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.051347714 = queryNorm
            1.1240361 = fieldWeight in 973, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.09375 = fieldNorm(doc=973)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Content

Vgl.: http%3A%2F%2Fcreativechoice.org%2Fdoc%2FHansJonas.pdf&usg=AOvVaw1TM3teaYKgABL5H9yoIifA&opi=89978449.

0.067961484 = product of:
  0.13592297 = sum of:
    0.13592297 = product of:
      0.4077689 = sum of:
        0.4077689 = weight(_text_:3a in 1826) [ClassicSimilarity], result of:
          0.4077689 = score(doc=1826,freq=2.0), product of:
            0.4353265 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.051347714 = queryNorm
            0.93669677 = fieldWeight in 1826, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.078125 = fieldNorm(doc=1826)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Source

http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CDQQFjAE&url=http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F3131107&ei=HzFWVYvGMsiNsgGTyoFI&usg=AFQjCNE2FHUeR9oQTQlNC4TPedv4Mo3DaQ&sig2=Rlzpr7a3BLZZkqZCXXN_IA&bvm=bv.93564037,d.bGg&cad=rja

0.06052489 = product of:
  0.12104978 = sum of:
    0.12104978 = sum of:
      0.08626524 = weight(_text_:multimedia in 1434) [ClassicSimilarity], result of:
        0.08626524 = score(doc=1434,freq=4.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.3622867 = fieldWeight in 1434, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1434)
      0.034784533 = weight(_text_:22 in 1434) [ClassicSimilarity], result of:
        0.034784533 = score(doc=1434,freq=2.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.19345059 = fieldWeight in 1434, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1434)
  0.5 = coord(1/2)

Abstract

Knowledge organization of large-scale content on the Web requires substantial amounts of semantic metadata that is expensive to generate manually. Recent developments in Web technologies have enabled any user to tag documents and other forms of content thereby generating metadata that could help organize knowledge. However, merely adding one or more tags to a document is highly inadequate to capture the aboutness of the document and thereby to support powerful semantic functions such as automatic classification, question answering or true semantic search and retrieval. This is true even when the tags used are labels from a well-designed classification system such as a thesaurus or taxonomy. There is a strong need to develop a semantic tagging mechanism with sufficient expressive power to capture the aboutness of each part of a document or dataset or multimedia content in order to enable applications that can benefit from knowledge organization on the Web. This article proposes a highly expressive mechanism of using ontology snippets as semantic tags that map portions of a document or a part of a dataset or a segment of a multimedia content to concepts and relations in an ontology of the domain(s) of interest.

Source

Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik

0.05705909 = product of:
  0.11411818 = sum of:
    0.11411818 = product of:
      0.22823636 = sum of:
        0.22823636 = weight(_text_:multimedia in 2801) [ClassicSimilarity], result of:
          0.22823636 = score(doc=2801,freq=28.0), product of:
            0.2381132 = queryWeight, product of:
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.051347714 = queryNorm
            0.9585204 = fieldWeight in 2801, product of:
              5.2915025 = tf(freq=28.0), with freq of:
                28.0 = termFreq=28.0
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2801)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

The book covers multimedia ontology in heritage preservation with intellectual explorations of various themes of Indian cultural heritage. The result of more than 15 years of collective research, Multimedia Ontology: Representation and Applications provides a theoretical foundation for understanding the nature of media data and the principles involved in its interpretation. The book presents a unified approach to recent advances in multimedia and explains how a multimedia ontology can fill the semantic gap between concepts and the media world. It relays real-life examples of implementations in different domains to illustrate how this gap can be filled. The book contains information that helps with building semantic, content-based search and retrieval engines and also with developing vertical application-specific search applications. It guides you in designing multimedia tools that aid in logical and conceptual organization of large amounts of multimedia data. As a practical demonstration, it showcases multimedia applications in cultural heritage preservation efforts and the creation of virtual museums. The book describes the limitations of existing ontology techniques in semantic multimedia data processing, as well as some open problems in the representations and applications of multimedia ontology. As an antidote, it introduces new ontology representation and reasoning schemes that overcome these limitations. The long, compiled efforts reflected in Multimedia Ontology: Representation and Applications are a signpost for new achievements and developments in efficiency and accessibility in the field.

LCSH

Multimedia systems

Subject

Multimedia systems

Theme

Multimedia

0.054183196 = product of:
  0.10836639 = sum of:
    0.10836639 = sum of:
      0.06901219 = weight(_text_:multimedia in 2753) [ClassicSimilarity], result of:
        0.06901219 = score(doc=2753,freq=4.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.28982934 = fieldWeight in 2753, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.03125 = fieldNorm(doc=2753)
      0.039354205 = weight(_text_:22 in 2753) [ClassicSimilarity], result of:
        0.039354205 = score(doc=2753,freq=4.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.21886435 = fieldWeight in 2753, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03125 = fieldNorm(doc=2753)
  0.5 = coord(1/2)

Abstract

This book constitutes the thoroughly refereed post-conference proceedings of the First COST Action IC1302 International KEYSTONE Conference on semantic Keyword-based Search on Structured Data Sources, IKC 2015, held in Coimbra, Portugal, in September 2015. The 13 revised full papers, 3 revised short papers, and 2 invited papers were carefully reviewed and selected from 22 initial submissions. The paper topics cover techniques for keyword search, semantic data management, social Web and social media, information retrieval, benchmarking for search on big data.

Date

1. 2.2016 18:25:22

LCSH

Multimedia information systems

Subject

Multimedia information systems

0.048416246 = product of:
  0.09683249 = sum of:
    0.09683249 = product of:
      0.19366498 = sum of:
        0.19366498 = weight(_text_:multimedia in 4228) [ClassicSimilarity], result of:
          0.19366498 = score(doc=4228,freq=14.0), product of:
            0.2381132 = queryWeight, product of:
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.051347714 = queryNorm
            0.8133316 = fieldWeight in 4228, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.046875 = fieldNorm(doc=4228)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

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.

Theme

Multimedia

0.048416246 = product of:
  0.09683249 = sum of:
    0.09683249 = product of:
      0.19366498 = sum of:
        0.19366498 = weight(_text_:multimedia in 2911) [ClassicSimilarity], result of:
          0.19366498 = score(doc=2911,freq=14.0), product of:
            0.2381132 = queryWeight, product of:
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.051347714 = queryNorm
            0.8133316 = fieldWeight in 2911, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.046875 = fieldNorm(doc=2911)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

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.

Theme

Multimedia

0.04789163 = product of:
  0.09578326 = sum of:
    0.09578326 = sum of:
      0.060998734 = weight(_text_:multimedia in 4195) [ClassicSimilarity], result of:
        0.060998734 = score(doc=4195,freq=2.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.25617537 = fieldWeight in 4195, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4195)
      0.034784533 = weight(_text_:22 in 4195) [ClassicSimilarity], result of:
        0.034784533 = score(doc=4195,freq=2.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.19345059 = fieldWeight in 4195, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4195)
  0.5 = coord(1/2)

Abstract

Webcasting systems were developed to provide remote access in real-time to live events. Today, these systems have an additional requirement: to accommodate the "second life" of webcasts as archival information objects. Research to date has focused on facilitating the production and storage of webcasts as well as the development of more interactive and collaborative multimedia tools to support the event, but research has not examined how people interact with a webcasting system to access and use the contents of those archived events. Using an experimental design, this study examined how 16 typical users interact with a webcasting system to respond to a set of information tasks: selecting a webcast, searching for specific information, and making a gist of a webcast. Using several data sources that included user actions, user perceptions, and user explanations of their actions and decisions, the study also examined the strategies employed to complete the tasks. The results revealed distinctive system-use patterns for each task and provided insights into the types of tools needed to make webcasting systems better suited for also using the webcasts as information objects.

Date

22. 1.2011 14:16:14

0.04789163 = product of:
  0.09578326 = sum of:
    0.09578326 = sum of:
      0.060998734 = weight(_text_:multimedia in 1648) [ClassicSimilarity], result of:
        0.060998734 = score(doc=1648,freq=2.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.25617537 = fieldWeight in 1648, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1648)
      0.034784533 = weight(_text_:22 in 1648) [ClassicSimilarity], result of:
        0.034784533 = score(doc=1648,freq=2.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.19345059 = fieldWeight in 1648, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1648)
  0.5 = coord(1/2)

Abstract

This is an edited collection of 39 original papers and as many commentaries and replies. The target papers and replies were written by senior members of the MIND Group, while all commentaries were written by junior group members. All papers and commentaries have undergone a rigorous process of anonymous peer review, during which the junior members of the MIND Group acted as reviewers. The final versions of all the target articles, commentaries and replies have undergone additional editorial review. Besides offering a cross-section of ongoing, cutting-edge research in philosophy and cognitive science, this collection is also intended to be a free electronic resource for teaching. It therefore also contains a selection of online supporting materials, pointers to video and audio files and to additional free material supplied by the 92 authors represented in this volume. We will add more multimedia material, a searchable literature database, and tools to work with the online version in the future. All contributions to this collection are strictly open access. They can be downloaded, printed, and reproduced by anyone.

Date

27. 1.2015 11:48:22

0.04789163 = product of:
  0.09578326 = sum of:
    0.09578326 = sum of:
      0.060998734 = weight(_text_:multimedia in 2376) [ClassicSimilarity], result of:
        0.060998734 = score(doc=2376,freq=2.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.25617537 = fieldWeight in 2376, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.0390625 = fieldNorm(doc=2376)
      0.034784533 = weight(_text_:22 in 2376) [ClassicSimilarity], result of:
        0.034784533 = score(doc=2376,freq=2.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.19345059 = fieldWeight in 2376, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0390625 = fieldNorm(doc=2376)
  0.5 = coord(1/2)

Abstract

Knowledge organization is needed everywhere. Its importance is marked by its pervasiveness. This paper will show many areas, tasks, and functions where proper use of knowledge organization, construed as broadly as the term implies, provides support for learning and understanding, for sense making and meaning making, for inference, and for discovery by people and computer programs and thereby will make the world a better place. The paper focuses not on metadata but rather on structuring and representing the actual data or knowledge itself and argues for more communication between the largely separated KO, ontology, data modeling, and semantic web communities to address the many problems that need better solutions. In particular, the paper discusses the application of knowledge organization in knowledge bases for question answering and cognitive systems, knowledge bases for information extraction from text or multimedia, linked data, big data and data analytics, electronic health records as one example, influence diagrams (causal maps), dynamic system models, process diagrams, concept maps, and other node-link diagrams, information systems in organizations, knowledge organization for understanding and learning, and knowledge transfer between domains. The paper argues for moving beyond triples to a more powerful representation using entities and multi-way relationships but not attributes.

Date

27.11.2015 20:52:22

0.04757304 = product of:
  0.09514608 = sum of:
    0.09514608 = product of:
      0.28543824 = sum of:
        0.28543824 = weight(_text_:3a in 5955) [ClassicSimilarity], result of:
          0.28543824 = score(doc=5955,freq=2.0), product of:
            0.4353265 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.051347714 = queryNorm
            0.65568775 = fieldWeight in 5955, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5955)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Footnote

Rez. in: Philosophisch-ethische Rezensionen vom 09.11.2019 (Jürgen Czogalla), Unter: https://philosophisch-ethische-rezensionen.de/rezension/Goedert1.html. In: B.I.T. online 23(2020) H.3, S.345-347 (W. Sühl-Strohmenger) [Unter: https%3A%2F%2Fwww.b-i-t-online.de%2Fheft%2F2020-03-rezensionen.pdf&usg=AOvVaw0iY3f_zNcvEjeZ6inHVnOK]. In: Open Password Nr. 805 vom 14.08.2020 (H.-C. Hobohm) [Unter: https://www.password-online.de/?mailpoet_router&endpoint=view_in_browser&action=view&data=WzE0MywiOGI3NjZkZmNkZjQ1IiwwLDAsMTMxLDFd].

0.0409192 = product of:
  0.0818384 = sum of:
    0.0818384 = product of:
      0.1636768 = sum of:
        0.1636768 = weight(_text_:multimedia in 4912) [ClassicSimilarity], result of:
          0.1636768 = score(doc=4912,freq=10.0), product of:
            0.2381132 = queryWeight, product of:
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.051347714 = queryNorm
            0.6873907 = fieldWeight in 4912, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.046875 = fieldNorm(doc=4912)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Für Speicherung und Transfer von Wissen setzen Unternehmen neben Textdaten verstärkt auch audio-visuelle Daten ein. Beispiele dafür sind Schulungsvideos für Produktionsanlagen oder Podcasts zu Forschungsthemen. Damit stellt sich die Frage, welche Werkzeuge sich für die Integration von Multimedia-Inhalten in Systeme des Wissensmanagements eignen und wie solche Inhalte in Enterprise-Suchmaschinen eingebunden werden können. Der Beitrag skizziert diesen Ausgangspunkt und gibt eine Übersicht über Anbieter und Werkzeuge zur Erschließung von Bilddaten (z. B. aus Digitalisierungs-Projekten) sowie von audio-visuellen Daten. Er konzentriert sich auf Werkzeuge, die als Software as a Service genutzt werden können und listet Kriterien zur technischen Evaluation solcher Lösungen auf. Der Beitrag basiert auf Beratungs- und Entwicklungsprojekten zu automatischer Medienerschließung, Multimedia Indexing und Enterprise Search.

Source

Open journal of knowledge management. 2013, Ausgabe VII = http://www.community-of-knowledge.de/beitrag/wissenstransfer-und-medienerschliessung-werkzeuge-fuer-die-integration-von-multimedia-inhalten-in-d/

Theme

Multimedia

0.04077689 = product of:
  0.08155378 = sum of:
    0.08155378 = product of:
      0.24466133 = sum of:
        0.24466133 = weight(_text_:3a in 400) [ClassicSimilarity], result of:
          0.24466133 = score(doc=400,freq=2.0), product of:
            0.4353265 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.051347714 = queryNorm
            0.56201804 = fieldWeight in 400, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046875 = fieldNorm(doc=400)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Content

Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.

0.04077689 = product of:
  0.08155378 = sum of:
    0.08155378 = product of:
      0.24466133 = sum of:
        0.24466133 = weight(_text_:3a in 484) [ClassicSimilarity], result of:
          0.24466133 = score(doc=484,freq=2.0), product of:
            0.4353265 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.051347714 = queryNorm
            0.56201804 = fieldWeight in 484, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046875 = fieldNorm(doc=484)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Footnote

https%3A%2F%2Fjournals.univie.ac.at%2Findex.php%2Fvoebm%2Farticle%2Fdownload%2F5332%2F5271%2F&usg=AOvVaw2yQdFGHlmOwVls7ANCpTii.

0.038313307 = product of:
  0.076626614 = sum of:
    0.076626614 = sum of:
      0.048798986 = weight(_text_:multimedia in 1082) [ClassicSimilarity], result of:
        0.048798986 = score(doc=1082,freq=2.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.20494029 = fieldWeight in 1082, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.03125 = fieldNorm(doc=1082)
      0.027827624 = weight(_text_:22 in 1082) [ClassicSimilarity], result of:
        0.027827624 = score(doc=1082,freq=2.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.15476047 = fieldWeight in 1082, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03125 = fieldNorm(doc=1082)
  0.5 = coord(1/2)

Abstract

With the proliferation of huge amounts of (heterogeneous) data on the Web, the importance of information retrieval (IR) has grown considerably over the last few years. Big players in the computer industry, such as Google, Microsoft and Yahoo!, are the primary contributors of technology for fast access to Web-based information; and searching capabilities are now integrated into most information systems, ranging from business management software and customer relationship systems to social networks and mobile phone applications. Ceri and his co-authors aim at taking their readers from the foundations of modern information retrieval to the most advanced challenges of Web IR. To this end, their book is divided into three parts. The first part addresses the principles of IR and provides a systematic and compact description of basic information retrieval techniques (including binary, vector space and probabilistic models as well as natural language search processing) before focusing on its application to the Web. Part two addresses the foundational aspects of Web IR by discussing the general architecture of search engines (with a focus on the crawling and indexing processes), describing link analysis methods (specifically Page Rank and HITS), addressing recommendation and diversification, and finally presenting advertising in search (the main source of revenues for search engines). The third and final part describes advanced aspects of Web search, each chapter providing a self-contained, up-to-date survey on current Web research directions. Topics in this part include meta-search and multi-domain search, semantic search, search in the context of multimedia data, and crowd search. The book is ideally suited to courses on information retrieval, as it covers all Web-independent foundational aspects. Its presentation is self-contained and does not require prior background knowledge. It can also be used in the context of classic courses on data management, allowing the instructor to cover both structured and unstructured data in various formats. Its classroom use is facilitated by a set of slides, which can be downloaded from www.search-computing.org.

Date

16.10.2013 19:22:44

0.038313307 = product of:
  0.076626614 = sum of:
    0.076626614 = sum of:
      0.048798986 = weight(_text_:multimedia in 4399) [ClassicSimilarity], result of:
        0.048798986 = score(doc=4399,freq=2.0), product of:
          0.2381132 = queryWeight, product of:
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.051347714 = queryNorm
          0.20494029 = fieldWeight in 4399, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.6372695 = idf(docFreq=1163, maxDocs=44218)
            0.03125 = fieldNorm(doc=4399)
      0.027827624 = weight(_text_:22 in 4399) [ClassicSimilarity], result of:
        0.027827624 = score(doc=4399,freq=2.0), product of:
          0.17981094 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.051347714 = queryNorm
          0.15476047 = fieldWeight in 4399, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03125 = fieldNorm(doc=4399)
  0.5 = coord(1/2)

Abstract

Modular ontologies are built in modular manner by combining modules from multiple relevant ontologies. Ontology heterogeneity also arises during modular ontology construction because multiple ontologies are being dealt with, during this process. Ontologies need to be aligned before using them for modular ontology construction. The existing approaches for ontology alignment compare all the concepts of each ontology to be aligned, hence not optimized in terms of time and search space utilization. A new indexing technique is proposed based on modular ontology. An efficient ontology alignment technique is proposed to solve the heterogeneity problem during the construction of modular ontology. Results are satisfactory as Precision and Recall are improved by (8%) and (10%) respectively. The value of Pearsons Correlation Coefficient for degree of similarity, time, search space requirement, precision and recall are close to 1 which shows that the results are significant. Further research can be carried out for using modular ontology based indexing technique for Multimedia Information Retrieval and Bio-Medical information retrieval.

Date

20. 1.2015 18:30:22

0.036599237 = product of:
  0.073198475 = sum of:
    0.073198475 = product of:
      0.14639695 = sum of:
        0.14639695 = weight(_text_:multimedia in 541) [ClassicSimilarity], result of:
          0.14639695 = score(doc=541,freq=2.0), product of:
            0.2381132 = queryWeight, product of:
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.051347714 = queryNorm
            0.61482084 = fieldWeight in 541, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.09375 = fieldNorm(doc=541)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.036599237 = product of:
  0.073198475 = sum of:
    0.073198475 = product of:
      0.14639695 = sum of:
        0.14639695 = weight(_text_:multimedia in 553) [ClassicSimilarity], result of:
          0.14639695 = score(doc=553,freq=2.0), product of:
            0.2381132 = queryWeight, product of:
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.051347714 = queryNorm
            0.61482084 = fieldWeight in 553, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.09375 = fieldNorm(doc=553)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.036599237 = product of:
  0.073198475 = sum of:
    0.073198475 = product of:
      0.14639695 = sum of:
        0.14639695 = weight(_text_:multimedia in 4030) [ClassicSimilarity], result of:
          0.14639695 = score(doc=4030,freq=2.0), product of:
            0.2381132 = queryWeight, product of:
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.051347714 = queryNorm
            0.61482084 = fieldWeight in 4030, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.6372695 = idf(docFreq=1163, maxDocs=44218)
              0.09375 = fieldNorm(doc=4030)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Series

Ratgeber Multimedia