Search (90 results, page 1 of 5)

  • × theme_ss:"Automatisches Indexieren"
  1. Wolfekuhler, M.R.; Punch, W.F.: Finding salient features for personal Web pages categories (1997) 0.02 
    0.015432911 = product of:
  0.07716455 = sum of:
    0.04082007 = weight(_text_:web in 2673) [ClassicSimilarity], result of:
      0.04082007 = score(doc=2673,freq=6.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.43716836 = fieldWeight in 2673, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2673)
    0.036344483 = product of:
      0.054516725 = sum of:
        0.027381519 = weight(_text_:29 in 2673) [ClassicSimilarity], result of:
          0.027381519 = score(doc=2673,freq=2.0), product of:
            0.10064617 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.028611459 = queryNorm
            0.27205724 = fieldWeight in 2673, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2673)
        0.027135205 = weight(_text_:22 in 2673) [ClassicSimilarity], result of:
          0.027135205 = score(doc=2673,freq=2.0), product of:
            0.10019246 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.028611459 = queryNorm
            0.2708308 = fieldWeight in 2673, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2673)
      0.6666667 = coord(2/3)
  0.2 = coord(2/10)
    Abstract
    Examines techniques that discover features in sets of pre-categorized documents, such that similar documents can be found on the WWW. Examines techniques which will classifiy training examples with high accuracy, then explains why this is not necessarily useful. Describes a method for extracting word clusters from the raw document features. Results show that the clustering technique is successful in discovering word groups in personal Web pages which can be used to find similar information on the WWW
    Date
    1. 8.1996 22:08:06
    Footnote
    Contribution to a special issue of papers from the 6th International World Wide Web conference, held 7-11 Apr 1997, Santa Clara, California
    Source
    Computer networks and ISDN systems. 29(1997) no.8, S.1147-1156
  2. Hauer, M: Silicon Valley Vorarlberg : Maschinelle Indexierung und semantisches Retrieval verbessert den Katalog der Vorarlberger Landesbibliothek (2004) 0.01 
    0.0141834235 = product of:
  0.070917115 = sum of:
    0.04175992 = weight(_text_:kommunikation in 2489) [ClassicSimilarity], result of:
      0.04175992 = score(doc=2489,freq=2.0), product of:
        0.14706601 = queryWeight, product of:
          5.140109 = idf(docFreq=703, maxDocs=44218)
          0.028611459 = queryNorm
        0.28395358 = fieldWeight in 2489, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.140109 = idf(docFreq=703, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2489)
    0.029157192 = weight(_text_:web in 2489) [ClassicSimilarity], result of:
      0.029157192 = score(doc=2489,freq=6.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.3122631 = fieldWeight in 2489, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2489)
  0.2 = coord(2/10)
    Abstract
    10 Jahre Internet haben die WeIt um die Bibliotheken herum stark geändert. Der Web-OPAC war eine Antwort der Bibliotheken. Doch reicht ein Web-OPAC im Zeitalter des Internets noch aus? Außer Web ist es doch der alte Katalog. Ca. 90% aller Bibliotheksrecherchen durch Benutzer sind Themenrecherchen. Ein Anteil dieser Recherchen bringt kein Ergebnis. Es kann leicht gemessen werden, dass null Medien gefunden wurden. Die Gründe hierfür wurden auch immer wieder untersucht: Plural- anstelle Singularformen, zu spezifische Suchbegriffe, Schreib- oder Bedienungsfehler. Zu wenig untersucht sind aber die Recherchen, die nicht mit einer Ausleihe enden, denn auch dann kann man in vielen Fällen von einem Retrieval-Mangel ausgehen. Schließlich: Von den ausgeliehenen Büchern werden nach Einschätzung vieler Bibliothekare 80% nicht weiter als bis zum Inhaltsverzeichnis gelesen (außer in Präsenzbibliotheken) - und erst nach Wochen zurückgegeben. Ein Politiker würde dies neudeutsch als "ein Vermittlungsproblem" bezeichnen. Ein Controller als nicht hinreichende Kapitalnutzung. Einfacher machen es sich immer mehr Studenten und Wissenschaftler, ihr Wissensaustausch vollzieht sich zunehmend an anderen Orten. Bibliotheken (als Funktion) sind unverzichtbar für die wissenschaftliche Kommunikation. Deshalb geht es darum, Wege zu finden und auch zu beschreiten, welche die Schätze von Bibliotheken (als Institution) effizienter an die Zielgruppe bringen. Der Einsatz von Information Retrieval-Technologie, neue Erschließungsmethoden und neuer Content sind Ansätze dazu. Doch die bisherigen Verbundstrukturen und Abhängigkeit haben das hier vorgestellte innovative Projekt keineswegs gefördert. Innovation entsteht wie die Innvoationsforschung zeigt eigentlich immer an der Peripherie: in Bregenz fing es an.
  3. Zimmermann, H.: Automatische Indexierung: Entwicklung und Perspektiven (1983) 0.01 
    0.0066815875 = product of:
  0.066815875 = sum of:
    0.066815875 = weight(_text_:kommunikation in 2318) [ClassicSimilarity], result of:
      0.066815875 = score(doc=2318,freq=2.0), product of:
        0.14706601 = queryWeight, product of:
          5.140109 = idf(docFreq=703, maxDocs=44218)
          0.028611459 = queryNorm
        0.45432574 = fieldWeight in 2318, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.140109 = idf(docFreq=703, maxDocs=44218)
          0.0625 = fieldNorm(doc=2318)
  0.1 = coord(1/10)
    Abstract
    Die Automatische Indexierung als ein Teilgebiet der Inhaltserschließung wird inzwischen in einer Reihe von Gebieten, vor allem in der Fachinformation und Kommunikation praktisch eingesetzt. Dabei dominieren äußerst einfache Systeme, die (noch) erhebliche Anpassungen des Benutzers an die jeweilige Systemstrategie voraussetzen. Unter Berücksichtigung des Konzepts der Einheit von Informationserschließung und -retrieval werden höherwertige ("intelligentere") Verfahren vorgestellt, die der Entlastung des Informationssuchenden wie auch der Verbesserung der Rechercheergebnisse dienen sollen
  4. Schulz, K.U.; Brunner, L.: Vollautomatische thematische Verschlagwortung großer Textkollektionen mittels semantischer Netze (2017) 0.01 
    0.006538931 = product of:
  0.032694653 = sum of:
    0.023567477 = weight(_text_:web in 3493) [ClassicSimilarity], result of:
      0.023567477 = score(doc=3493,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 3493, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3493)
    0.009127174 = product of:
      0.027381519 = sum of:
        0.027381519 = weight(_text_:29 in 3493) [ClassicSimilarity], result of:
          0.027381519 = score(doc=3493,freq=2.0), product of:
            0.10064617 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.028611459 = queryNorm
            0.27205724 = fieldWeight in 3493, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3493)
      0.33333334 = coord(1/3)
  0.2 = coord(2/10)
    Source
    Theorie, Semantik und Organisation von Wissen: Proceedings der 13. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und dem 13. Internationalen Symposium der Informationswissenschaft der Higher Education Association for Information Science (HI) Potsdam (19.-20.03.2013): 'Theory, Information and Organization of Knowledge' / Proceedings der 14. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und Natural Language & Information Systems (NLDB) Passau (16.06.2015): 'Lexical Resources for Knowledge Organization' / Proceedings des Workshops der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) auf der SEMANTICS Leipzig (1.09.2014): 'Knowledge Organization and Semantic Web' / Proceedings des Workshops der Polnischen und Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) Cottbus (29.-30.09.2011): 'Economics of Knowledge Production and Organization'. Hrsg. von W. Babik, H.P. Ohly u. K. Weber
  5. Böhm, A.; Seifert, C.; Schlötterer, J.; Granitzer, M.: Identifying tweets from the economic domain (2017) 0.01 
    0.006538931 = product of:
  0.032694653 = sum of:
    0.023567477 = weight(_text_:web in 3495) [ClassicSimilarity], result of:
      0.023567477 = score(doc=3495,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 3495, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3495)
    0.009127174 = product of:
      0.027381519 = sum of:
        0.027381519 = weight(_text_:29 in 3495) [ClassicSimilarity], result of:
          0.027381519 = score(doc=3495,freq=2.0), product of:
            0.10064617 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.028611459 = queryNorm
            0.27205724 = fieldWeight in 3495, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3495)
      0.33333334 = coord(1/3)
  0.2 = coord(2/10)
    Source
    Theorie, Semantik und Organisation von Wissen: Proceedings der 13. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und dem 13. Internationalen Symposium der Informationswissenschaft der Higher Education Association for Information Science (HI) Potsdam (19.-20.03.2013): 'Theory, Information and Organization of Knowledge' / Proceedings der 14. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und Natural Language & Information Systems (NLDB) Passau (16.06.2015): 'Lexical Resources for Knowledge Organization' / Proceedings des Workshops der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) auf der SEMANTICS Leipzig (1.09.2014): 'Knowledge Organization and Semantic Web' / Proceedings des Workshops der Polnischen und Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) Cottbus (29.-30.09.2011): 'Economics of Knowledge Production and Organization'. Hrsg. von W. Babik, H.P. Ohly u. K. Weber
  6. Kempf, A.O.: Neue Verfahrenswege der Wissensorganisation : eine Evaluation automatischer Indexierung in der sozialwissenschaftlichen Fachinformation (2017) 0.01 
    0.006538931 = product of:
  0.032694653 = sum of:
    0.023567477 = weight(_text_:web in 3497) [ClassicSimilarity], result of:
      0.023567477 = score(doc=3497,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 3497, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3497)
    0.009127174 = product of:
      0.027381519 = sum of:
        0.027381519 = weight(_text_:29 in 3497) [ClassicSimilarity], result of:
          0.027381519 = score(doc=3497,freq=2.0), product of:
            0.10064617 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.028611459 = queryNorm
            0.27205724 = fieldWeight in 3497, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3497)
      0.33333334 = coord(1/3)
  0.2 = coord(2/10)
    Source
    Theorie, Semantik und Organisation von Wissen: Proceedings der 13. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und dem 13. Internationalen Symposium der Informationswissenschaft der Higher Education Association for Information Science (HI) Potsdam (19.-20.03.2013): 'Theory, Information and Organization of Knowledge' / Proceedings der 14. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) und Natural Language & Information Systems (NLDB) Passau (16.06.2015): 'Lexical Resources for Knowledge Organization' / Proceedings des Workshops der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) auf der SEMANTICS Leipzig (1.09.2014): 'Knowledge Organization and Semantic Web' / Proceedings des Workshops der Polnischen und Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation (ISKO) Cottbus (29.-30.09.2011): 'Economics of Knowledge Production and Organization'. Hrsg. von W. Babik, H.P. Ohly u. K. Weber
  7. Kumpe, D.: Methoden zur automatischen Indexierung von Dokumenten (2006) 0.01 
    0.005846389 = product of:
  0.05846389 = sum of:
    0.05846389 = weight(_text_:kommunikation in 782) [ClassicSimilarity], result of:
      0.05846389 = score(doc=782,freq=2.0), product of:
        0.14706601 = queryWeight, product of:
          5.140109 = idf(docFreq=703, maxDocs=44218)
          0.028611459 = queryNorm
        0.39753503 = fieldWeight in 782, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.140109 = idf(docFreq=703, maxDocs=44218)
          0.0546875 = fieldNorm(doc=782)
  0.1 = coord(1/10)
    Abstract
    Diese Diplomarbeit handelt von der Indexierung von unstrukturierten und natürlichsprachigen Dokumenten. Die zunehmende Informationsflut und die Zahl an veröffentlichten wissenschaftlichen Berichten und Büchern machen eine maschinelle inhaltliche Erschließung notwendig. Um die Anforderungen hierfür besser zu verstehen, werden Probleme der natürlichsprachigen schriftlichen Kommunikation untersucht. Die manuellen Techniken der Indexierung und die Dokumentationssprachen werden vorgestellt. Die Indexierung wird thematisch in den Bereich der inhaltlichen Erschließung und des Information Retrieval eingeordnet. Weiterhin werden Vor- und Nachteile von ausgesuchten Algorithmen untersucht und Softwareprodukte im Bereich des Information Retrieval auf ihre Arbeitsweise hin evaluiert. Anhand von Beispiel-Dokumenten werden die Ergebnisse einzelner Verfahren vorgestellt. Mithilfe des Projekts European Migration Network werden Probleme und grundlegende Anforderungen an die Durchführung einer inhaltlichen Erschließung identifiziert und Lösungsmöglichkeiten vorgeschlagen.
  8. Rasmussen, E.M.: Indexing and retrieval for the Web (2002) 0.00 
    0.004409071 = product of:
  0.04409071 = sum of:
    0.04409071 = weight(_text_:web in 4285) [ClassicSimilarity], result of:
      0.04409071 = score(doc=4285,freq=28.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.47219574 = fieldWeight in 4285, product of:
          5.2915025 = tf(freq=28.0), with freq of:
            28.0 = termFreq=28.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.02734375 = fieldNorm(doc=4285)
  0.1 = coord(1/10)
    Abstract
    The introduction and growth of the World Wide Web (WWW, or Web) have resulted in a profound change in the way individuals and organizations access information. In terms of volume, nature, and accessibility, the characteristics of electronic information are significantly different from those of even five or six years ago. Control of, and access to, this flood of information rely heavily an automated techniques for indexing and retrieval. According to Gudivada, Raghavan, Grosky, and Kasanagottu (1997, p. 58), "The ability to search and retrieve information from the Web efficiently and effectively is an enabling technology for realizing its full potential." Almost 93 percent of those surveyed consider the Web an "indispensable" Internet technology, second only to e-mail (Graphie, Visualization & Usability Center, 1998). Although there are other ways of locating information an the Web (browsing or following directory structures), 85 percent of users identify Web pages by means of a search engine (Graphie, Visualization & Usability Center, 1998). A more recent study conducted by the Stanford Institute for the Quantitative Study of Society confirms the finding that searching for information is second only to e-mail as an Internet activity (Nie & Ebring, 2000, online). In fact, Nie and Ebring conclude, "... the Internet today is a giant public library with a decidedly commercial tilt. The most widespread use of the Internet today is as an information search utility for products, travel, hobbies, and general information. Virtually all users interviewed responded that they engaged in one or more of these information gathering activities."
    Techniques for automated indexing and information retrieval (IR) have been developed, tested, and refined over the past 40 years, and are well documented (see, for example, Agosti & Smeaton, 1996; BaezaYates & Ribeiro-Neto, 1999a; Frakes & Baeza-Yates, 1992; Korfhage, 1997; Salton, 1989; Witten, Moffat, & Bell, 1999). With the introduction of the Web, and the capability to index and retrieve via search engines, these techniques have been extended to a new environment. They have been adopted, altered, and in some Gases extended to include new methods. "In short, search engines are indispensable for searching the Web, they employ a variety of relatively advanced IR techniques, and there are some peculiar aspects of search engines that make searching the Web different than more conventional information retrieval" (Gordon & Pathak, 1999, p. 145). The environment for information retrieval an the World Wide Web differs from that of "conventional" information retrieval in a number of fundamental ways. The collection is very large and changes continuously, with pages being added, deleted, and altered. Wide variability between the size, structure, focus, quality, and usefulness of documents makes Web documents much more heterogeneous than a typical electronic document collection. The wide variety of document types includes images, video, audio, and scripts, as well as many different document languages. Duplication of documents and sites is common. Documents are interconnected through networks of hyperlinks. Because of the size and dynamic nature of the Web, preprocessing all documents requires considerable resources and is often not feasible, certainly not an the frequent basis required to ensure currency. Query length is usually much shorter than in other environments-only a few words-and user behavior differs from that in other environments. These differences make the Web a novel environment for information retrieval (Baeza-Yates & Ribeiro-Neto, 1999b; Bharat & Henzinger, 1998; Huang, 2000).
  9. Franke-Maier, M.: Anforderungen an die Qualität der Inhaltserschließung im Spannungsfeld von intellektuell und automatisch erzeugten Metadaten (2018) 0.00 
    0.0036344484 = product of:
  0.036344483 = sum of:
    0.036344483 = product of:
      0.054516725 = sum of:
        0.027381519 = weight(_text_:29 in 5344) [ClassicSimilarity], result of:
          0.027381519 = score(doc=5344,freq=2.0), product of:
            0.10064617 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.028611459 = queryNorm
            0.27205724 = fieldWeight in 5344, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5344)
        0.027135205 = weight(_text_:22 in 5344) [ClassicSimilarity], result of:
          0.027135205 = score(doc=5344,freq=2.0), product of:
            0.10019246 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.028611459 = queryNorm
            0.2708308 = fieldWeight in 5344, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5344)
      0.6666667 = coord(2/3)
  0.1 = coord(1/10)
    Abstract
    Spätestens seit dem Deutschen Bibliothekartag 2018 hat sich die Diskussion zu den automatischen Verfahren der Inhaltserschließung der Deutschen Nationalbibliothek von einer politisch geführten Diskussion in eine Qualitätsdiskussion verwandelt. Der folgende Beitrag beschäftigt sich mit Fragen der Qualität von Inhaltserschließung in digitalen Zeiten, wo heterogene Erzeugnisse unterschiedlicher Verfahren aufeinandertreffen und versucht, wichtige Anforderungen an Qualität zu definieren. Dieser Tagungsbeitrag fasst die vom Autor als Impulse vorgetragenen Ideen beim Workshop der FAG "Erschließung und Informationsvermittlung" des GBV am 29. August 2018 in Kiel zusammen. Der Workshop fand im Rahmen der 22. Verbundkonferenz des GBV statt.
  10. Fauzi, F.; Belkhatir, M.: Multifaceted conceptual image indexing on the world wide web (2013) 0.00 
    0.0034988632 = product of:
  0.03498863 = sum of:
    0.03498863 = weight(_text_:web in 2721) [ClassicSimilarity], result of:
      0.03498863 = score(doc=2721,freq=6.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.37471575 = fieldWeight in 2721, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.046875 = fieldNorm(doc=2721)
  0.1 = coord(1/10)
    Abstract
    In this paper, we describe a user-centered design of an automated multifaceted concept-based indexing framework which analyzes the semantics of the Web image contextual information and classifies it into five broad semantic concept facets: signal, object, abstract, scene, and relational; and identifies the semantic relationships between the concepts. An important aspect of our indexing model is that it relates to the users' levels of image descriptions. Also, a major contribution relies on the fact that the classification is performed automatically with the raw image contextual information extracted from any general webpage and is not solely based on image tags like state-of-the-art solutions. Human Language Technology techniques and an external knowledge base are used to analyze the information both syntactically and semantically. Experimental results on a human-annotated Web image collection and corresponding contextual information indicate that our method outperforms empirical frameworks employing tf-idf and location-based tf-idf weighting schemes as well as n-gram indexing in a recall/precision based evaluation framework.
  11. McKiernan, G.: Automated categorisation of Web resources : a profile of selected projects, research, products, and services (1996) 0.00 
    0.0033667826 = product of:
  0.033667825 = sum of:
    0.033667825 = weight(_text_:web in 2533) [ClassicSimilarity], result of:
      0.033667825 = score(doc=2533,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.36057037 = fieldWeight in 2533, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.078125 = fieldNorm(doc=2533)
  0.1 = coord(1/10)
  12. Shafer, K.: Scorpion Project explores using Dewey to organize the Web (1996) 0.00 
    0.0033329446 = product of:
  0.033329446 = sum of:
    0.033329446 = weight(_text_:web in 6750) [ClassicSimilarity], result of:
      0.033329446 = score(doc=6750,freq=4.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.35694647 = fieldWeight in 6750, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6750)
  0.1 = coord(1/10)
    Abstract
    As the amount of accessible information on the WWW increases, so will the cost of accessing it, even if search servcies remain free, due to the increasing amount of time users will have to spend to find needed items. Considers what the seemingly unorganized Web and the organized world of libraries can offer each other. The OCLC Scorpion Project is attempting to combine indexing and cataloguing, specifically focusing on building tools for automatic subject recognition using the technqiues of library science and information retrieval. If subject headings or concept domains can be automatically assigned to electronic items, improved filtering tools for searching can be produced
  13. Hauer, M.: Neue Qualitäten in Bibliotheken : Durch Content-Ergänzung, maschinelle Indexierung und modernes Information Retrieval können Recherchen in Bibliothekskatalogen deutlich verbessert werden (2004) 0.00 
    0.0026934259 = product of:
  0.026934259 = sum of:
    0.026934259 = weight(_text_:web in 886) [ClassicSimilarity], result of:
      0.026934259 = score(doc=886,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.2884563 = fieldWeight in 886, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0625 = fieldNorm(doc=886)
  0.1 = coord(1/10)
    Abstract
    Seit Frühjahr 2004 ist Dandelon.com als neues, offenes, internationales Wissenschaftsportal in Betrieb. Erste Retrieval-Tests bescheinigen deutlich bessere Suchergebnisse als in herkömmlichen OPACs oder Verbundsystemen. Seine Daten stammen aus intelligentCAPTURE und Bibliothekskatalogen. intelligentCAPTURE erfasst Content über Scanning oder File-Import oder Web-Spidering und indexiert nach morphosyntaktischen und semantischen Verfahren. Aufbereiteter Content und Indexate gehen an Bibliothekssysteme und an dandelon.com. Dandelon.com ist kostenlos zugänglich für Endbenutzer und ist zugleich Austauschzentrale und Katalogerweiterung für angeschlossene Bibliotheken. Neue Inhalte können so kostengünstig und performant erschlossen werden.
  14. Kuhlen, R.: Morphologische Relationen durch Reduktionsalgorithmen (1974) 0.00 
    0.0025815545 = product of:
  0.025815545 = sum of:
    0.025815545 = product of:
      0.07744663 = sum of:
        0.07744663 = weight(_text_:29 in 4251) [ClassicSimilarity], result of:
          0.07744663 = score(doc=4251,freq=4.0), product of:
            0.10064617 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.028611459 = queryNorm
            0.7694941 = fieldWeight in 4251, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=4251)
      0.33333334 = coord(1/3)
  0.1 = coord(1/10)
    Date
    29. 1.2011 14:56:29
  15. Krüger, C.: Evaluation des WWW-Suchdienstes GERHARD unter besonderer Beachtung automatischer Indexierung (1999) 0.00 
    0.0023806747 = product of:
  0.023806747 = sum of:
    0.023806747 = weight(_text_:web in 1777) [ClassicSimilarity], result of:
      0.023806747 = score(doc=1777,freq=4.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25496176 = fieldWeight in 1777, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1777)
  0.1 = coord(1/10)
    Abstract
    Die vorliegende Arbeit beinhaltet eine Beschreibung und Evaluation des WWW - Suchdienstes GERHARD (German Harvest Automated Retrieval and Directory). GERHARD ist ein Such- und Navigationssystem für das deutsche World Wide Web, weiches ausschließlich wissenschaftlich relevante Dokumente sammelt, und diese auf der Basis computerlinguistischer und statistischer Methoden automatisch mit Hilfe eines bibliothekarischen Klassifikationssystems klassifiziert. Mit dem DFG - Projekt GERHARD ist der Versuch unternommen worden, mit einem auf einem automatischen Klassifizierungsverfahren basierenden World Wide Web - Dienst eine Alternative zu herkömmlichen Methoden der Interneterschließung zu entwickeln. GERHARD ist im deutschsprachigen Raum das einzige Verzeichnis von Internetressourcen, dessen Erstellung und Aktualisierung vollständig automatisch (also maschinell) erfolgt. GERHARD beschränkt sich dabei auf den Nachweis von Dokumenten auf wissenschaftlichen WWW - Servern. Die Grundidee dabei war, kostenintensive intellektuelle Erschließung und Klassifizierung von lnternetseiten durch computerlinguistische und statistische Methoden zu ersetzen, um auf diese Weise die nachgewiesenen Internetressourcen automatisch auf das Vokabular eines bibliothekarischen Klassifikationssystems abzubilden. GERHARD steht für German Harvest Automated Retrieval and Directory. Die WWW - Adresse (URL) von GERHARD lautet: http://www.gerhard.de. Im Rahmen der vorliegenden Diplomarbeit soll eine Beschreibung des Dienstes mit besonderem Schwerpunkt auf dem zugrundeliegenden Indexierungs- bzw. Klassifizierungssystem erfolgen und anschließend mit Hilfe eines kleinen Retrievaltests die Effektivität von GERHARD überprüft werden.
  16. Koch, T.: Experiments with automatic classification of WAIS databases and indexing of WWW : some results from the Nordic WAIS/WWW project (1994) 0.00 
    0.0023567479 = product of:
  0.023567477 = sum of:
    0.023567477 = weight(_text_:web in 7209) [ClassicSimilarity], result of:
      0.023567477 = score(doc=7209,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 7209, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=7209)
  0.1 = coord(1/10)
    Abstract
    The Nordic WAIS/WWW project sponsored by NORDINFO is a joint project between Lund University Library and the National Technological Library of Denmark. It aims to improve the existing networked information discovery and retrieval tools Wide Area Information System (WAIS) and World Wide Web (WWW), and to move towards unifying WWW and WAIS. Details current results focusing on the WAIS side of the project. Describes research into automatic indexing and classification of WAIS sources, development of an orientation tool for WAIS, and development of a WAIS index of WWW resources
  17. Junger, U.: Can indexing be automated? : the example of the Deutsche Nationalbibliothek (2012) 0.00 
    0.0023567479 = product of:
  0.023567477 = sum of:
    0.023567477 = weight(_text_:web in 1717) [ClassicSimilarity], result of:
      0.023567477 = score(doc=1717,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 1717, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1717)
  0.1 = coord(1/10)
    Content
    Beitrag für die Tagung: Beyond libraries - subject metadata in the digital environment and semantic web. IFLA Satellite Post-Conference, 17-18 August 2012, Tallinn. Vgl.: http://http://www.nlib.ee/index.php?id=17763.
  18. Junger, U.: Can indexing be automated? : the example of the Deutsche Nationalbibliothek (2014) 0.00 
    0.0023567479 = product of:
  0.023567477 = sum of:
    0.023567477 = weight(_text_:web in 1969) [ClassicSimilarity], result of:
      0.023567477 = score(doc=1969,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 1969, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1969)
  0.1 = coord(1/10)
    Footnote
    Contribution in a special issue "Beyond libraries: Subject metadata in the digital environment and Semantic Web" - Enthält Beiträge der gleichnamigen IFLA Satellite Post-Conference, 17-18 August 2012, Tallinn.
  19. Lichtenstein, A.; Plank, M.; Neumann, J.: TIB's portal for audiovisual media : combining manual and automatic indexing (2014) 0.00 
    0.0023567479 = product of:
  0.023567477 = sum of:
    0.023567477 = weight(_text_:web in 1981) [ClassicSimilarity], result of:
      0.023567477 = score(doc=1981,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 1981, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1981)
  0.1 = coord(1/10)
    Abstract
    The German National Library of Science and Technology (TIB) developed a Web-based platform for audiovisual media. The audiovisual portal optimizes access to scientific videos such as computer animations and lecture and conference recordings. TIB's AV-Portal combines traditional cataloging and automatic indexing of audiovisual media. The article describes metadata standards for audiovisual media and introduces the TIB's metadata schema in comparison to other metadata standards for non-textual materials. Additionally, we give an overview of multimedia retrieval technologies used for the Portal and present the AV-Portal in detail as well as the additional value for libraries and their users.
  20. Daudaravicius, V.: ¬A framework for keyphrase extraction from scientific journals (2016) 0.00 
    0.0023567479 = product of:
  0.023567477 = sum of:
    0.023567477 = weight(_text_:web in 2930) [ClassicSimilarity], result of:
      0.023567477 = score(doc=2930,freq=2.0), product of:
        0.0933738 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.028611459 = queryNorm
        0.25239927 = fieldWeight in 2930, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2930)
  0.1 = coord(1/10)
    Content
    Vortrag, "Semantics, Analytics, Visualisation: Enhancing Scholarly Data Workshop co-located with the 25th International World Wide Web Conference April 11, 2016 - Montreal, Canada", Montreal 2016.

Authors

Years

Languages

  • e 47
  • d 39
  • nl 2
  • ja 1
  • ru 1
  • More… Less…

Types

  • a 79
  • el 7
  • x 6
  • m 3
  • p 1
  • s 1
  • More… Less…

Themes

Classifications