Search (124 results, page 1 of 7)

  • × theme_ss:"Wissensrepräsentation"
  1. Zeng, Q.; Yu, M.; Yu, W.; Xiong, J.; Shi, Y.; Jiang, M.: Faceted hierarchy : a new graph type to organize scientific concepts and a construction method (2019) 0.11
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    Content
    Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
  2. Xiong, C.: Knowledge based text representations for information retrieval (2016) 0.11
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    Content
    Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Language and Information Technologies. Vgl.: https%3A%2F%2Fwww.cs.cmu.edu%2F~cx%2Fpapers%2Fknowledge_based_text_representation.pdf&usg=AOvVaw0SaTSvhWLTh__Uz_HtOtl3.
  3. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.10
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    Content
    Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.
    Footnote
    Zur Erlangung des akademischen Grades eines Doktors der Wirtschaftswissenschaften (Dr. rer. pol.) von der Fakultaet fuer Wirtschaftswissenschaften der Universitaet Fridericiana zu Karlsruhe genehmigte Dissertation.
    Imprint
    Karlsruhe : Fakultaet fuer Wirtschaftswissenschaften der Universitaet Fridericiana zu Karlsruhe
  4. Handbook on ontologies (2004) 0.01
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    Classification
    ST 300 Informatik / Monographien / Künstliche Intelligenz / Allgemeines
    QP 345 Wirtschaftswissenschaften / Allgemeine Betriebswirtschaftslehre / Unternehmensführung / Organisation / Informationswesen. Informationssysteme
    RVK
    ST 300 Informatik / Monographien / Künstliche Intelligenz / Allgemeines
    QP 345 Wirtschaftswissenschaften / Allgemeine Betriebswirtschaftslehre / Unternehmensführung / Organisation / Informationswesen. Informationssysteme
  5. Tomassen, S.L.: Research on ontology-driven information retrieval (2006 (?)) 0.00
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    Abstract
    An increasing number of recent information retrieval systems make use of ontologies to help the users clarify their information needs and come up with semantic representations of documents. A particular concern here is the integration of these semantic approaches with traditional search technology. The research presented in this paper examines how ontologies can be efficiently applied to large-scale search systems for the web. We describe how these systems can be enriched with adapted ontologies to provide both an in-depth understanding of the user's needs as well as an easy integration with standard vector-space retrieval systems. The ontology concepts are adapted to the domain terminology by computing a feature vector for each concept. Later, the feature vectors are used to enrich a provided query. The whole retrieval system is under development as part of a larger Semantic Web standardization project for the Norwegian oil & gas sector.
  6. Baião Salgado Silva, G.; Lima, G.Â. Borém de Oliveira: Using topic maps in establishing compatibility of semantically structured hypertext contents (2012) 0.00
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    Abstract
    Considering the characteristics of hypertext systems and problems such as cognitive overload and the disorientation of users, this project studies subject hypertext documents that have undergone conceptual structuring using facets for content representation and improvement of information retrieval during navigation. The main objective was to assess the possibility of the application of topic map technology for automating the compatibilization process of these structures. For this purpose, two dissertations from the UFMG Information Science Post-Graduation Program were adopted as samples. Both dissertations had been duly analyzed and structured on the MHTX (Hypertextual Map) prototype database. The faceted structures of both dissertations, which had been represented in conceptual maps, were then converted into topic maps. It was then possible to use the merge property of the topic maps to promote the semantic interrelationship between the maps and, consequently, between the hypertextual information resources proper. The merge results were then analyzed in the light of theories dealing with the compatibilization of languages developed within the realm of information technology and librarianship from the 1960s on. The main goals accomplished were: (a) the detailed conceptualization of the merge process of the topic maps, considering the possible compatibilization levels and the applicability of this technology in the integration of faceted structures; and (b) the production of a detailed sequence of steps that may be used in the implementation of topic maps based on faceted structures.
    Date
    22. 2.2013 11:39:23
  7. Weiermann, S.L.: Semantische Netze und Begriffsdeskription in der Wissensrepräsentation (2000) 0.00
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    BK
    18.00 Einzelne Sprachen und Literaturen allgemein
    Classification
    18.00 Einzelne Sprachen und Literaturen allgemein
  8. Aker, A.; Plaza, L.; Lloret, E.; Gaizauskas, R.: Do humans have conceptual models about geographic objects? : a user study (2013) 0.00
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    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.4, S.689-700
  9. Stuckenschmidt, H.; Harmelen, F. van: Information sharing on the semantic web (2005) 0.00
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    Classification
    ST 515 Informatik / Monographien / Einzelne Anwendungen der Datenverarbeitung / Wirtschaftsinformatik / Wissensmanagement, Information engineering
    RVK
    ST 515 Informatik / Monographien / Einzelne Anwendungen der Datenverarbeitung / Wirtschaftsinformatik / Wissensmanagement, Information engineering
  10. Weller, K.: Anforderungen an die Wissensrepräsentation im Social Semantic Web (2010) 0.00
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    Abstract
    Dieser Artikel gibt einen Einblick in die aktuelle Verschmelzung von Web 2.0-und Semantic Web-Ansätzen, die als Social Semantic Web beschrieben werden kann. Die Grundidee des Social Semantic Web wird beschrieben und einzelne erste Anwendungsbeispiele vorgestellt. Ein wesentlicher Schwerpunkt dieser Entwicklung besteht in der Umsetzung neuer Methoden und Herangehensweisen im Bereich der Wissensrepräsentation. Dieser Artikel stellt vier Schwerpunkte vor, in denen sich die Wissensrepräsentationsmethoden im Social Semantic Web weiterentwickeln müssen und geht dabei jeweils auf den aktuellen Stand ein.
  11. Wei, W.; Liu, Y.-P.; Wei, L-R.: Feature-level sentiment analysis based on rules and fine-grained domain ontology (2020) 0.00
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    Field
    Wirtschaftswissenschaften
  12. Giri, K.; Gokhale, P.: Developing a banking service ontology using Protégé, an open source software (2015) 0.00
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  13. Semantic knowledge and semantic representations (1995) 0.00
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    BK
    18.00 Einzelne Sprachen und Literaturen allgemein
    Classification
    18.00 Einzelne Sprachen und Literaturen allgemein
  14. Andelfinger, U.; Wyssusek, B.; Kremberg, B.; Totzke, R.: Ontologies in knowledge management : panacea or mirage? 0.00
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    Content
    In der Finanzwirtschaft mit ihren automatisierten Handelssystemen (auf Basis technischer Ontologien) wird beispielsweise inzwischen bei außergewöhnlichen Kursbewegungen der Börse der automatische Handel unterbrochen, so dass dann auf pragmatisch-natürlichsprachliche Weise nach den Gründen für die Ausschläge gesucht werden kann. Aus Sicht der technischen Ontologien wäre eine solche Unterbrechung des Computerhandels (zur Beruhigung der Märkte) nicht zwingend erforderlich, aber sie ist sehr sinnvoll aus einer außerhalb der technischen Ontologie stehenden Perspektive, die alleine nach Sinn und Bedeutung stabiler Kursverläufe zu fragen imstande ist. Der hier sich abzeichnende ,pragmatic turn' beim Einsatz technischer Ontologien ist auch in vielfältiger Weise in Trends wie z.B. Folksonomies, Sozialen Netzwerken und Open-SourceEntwicklergruppen zu erkennen. Diese Gemeinschaften zeichnen sich dadurch aus, dass sie zwar (technische) Ontologien einsetzen, diese jedoch in intensive soziale Austauschprozesse einbinden, in denen die formalen Wissensrepräsentationen mit situativer Bedeutung und Sinn versehen und angereichert werden. Dieser Trend zu ,weicheren' Formen der Nutzung von (technischen) Ontologien scheint nach aktuellem Wissensstand auf jeden Fall in der Praxis erfolgversprechender als die anfänglichen Hoffnungen des Semantic Web oder vollständiger (technischer) Ontologien - ganz abgesehen vom laufenden Pflegeaufwand 'vollständiger' technischer Ontologien.
    Source
    http://www.cba.neu.edu/uploadedFiles/Site_Sections/OLKC_2010/Program_Overview/Parallel_Sessions/180_Wyssusek_Abstract_Ontologies%20in%20Knowledge%20Management%281%29.pdf
  15. Boteram, F.: Semantische Relationen in Dokumentationssprachen : vom Thesaurus zum semantischen Netz (2010) 0.00
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    Date
    2. 3.2013 12:29:05
    Source
    Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
  16. Baofu, P.: ¬The future of information architecture : conceiving a better way to understand taxonomy, network, and intelligence (2008) 0.00
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    Abstract
    The Future of Information Architecture examines issues surrounding why information is processed, stored and applied in the way that it has, since time immemorial. Contrary to the conventional wisdom held by many scholars in human history, the recurrent debate on the explanation of the most basic categories of information (eg space, time causation, quality, quantity) has been misconstrued, to the effect that there exists some deeper categories and principles behind these categories of information - with enormous implications for our understanding of reality in general. To understand this, the book is organised in to four main parts: Part I begins with the vital question concerning the role of information within the context of the larger theoretical debate in the literature. Part II provides a critical examination of the nature of data taxonomy from the main perspectives of culture, society, nature and the mind. Part III constructively invesitgates the world of information network from the main perspectives of culture, society, nature and the mind. Part IV proposes six main theses in the authors synthetic theory of information architecture, namely, (a) the first thesis on the simpleness-complicatedness principle, (b) the second thesis on the exactness-vagueness principle (c) the third thesis on the slowness-quickness principle (d) the fourth thesis on the order-chaos principle, (e) the fifth thesis on the symmetry-asymmetry principle, and (f) the sixth thesis on the post-human stage.
  17. Hermans, J.: Ontologiebasiertes Information Retrieval für das Wissensmanagement (2008) 0.00
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    Abstract
    Unternehmen sehen sich heutzutage regelmäßig der Herausforderung gegenübergestellt, aus umfangreichen Mengen an Dokumenten schnell relevante Informationen zu identifizieren. Dabei zeigt sich jedoch, dass Suchverfahren, die lediglich syntaktische Abgleiche von Informationsbedarfen mit potenziell relevanten Dokumenten durchführen, häufig nicht die an sie gestellten Erwartungen erfüllen. Viel versprechendes Potenzial bietet hier der Einsatz von Ontologien für das Information Retrieval. Beim ontologiebasierten Information Retrieval werden Ontologien eingesetzt, um Wissen in einer Form abzubilden, die durch Informationssysteme verarbeitet werden kann. Eine Berücksichtigung des so explizierten Wissens durch Suchalgorithmen führt dann zu einer optimierten Deckung von Informationsbedarfen. Jan Hermans stellt in seinem Buch ein adaptives Referenzmodell für die Entwicklung von ontologiebasierten Information Retrieval-Systemen vor. Zentrales Element seines Modells ist die einsatzkontextspezifische Adaption des Retrievalprozesses durch bewährte Techniken, die ausgewählte Aspekte des ontologiebasierten Information Retrievals bereits effektiv und effizient unterstützen. Die Anwendung des Referenzmodells wird anhand eines Fallbeispiels illustriert, bei dem ein Information Retrieval-System für die Suche nach Open Source-Komponenten entwickelt wird. Das Buch richtet sich gleichermaßen an Dozenten und Studierende der Wirtschaftsinformatik, Informatik und Betriebswirtschaftslehre sowie an Praktiker, die die Informationssuche im Unternehmen verbessern möchten. Jan Hermans, Jahrgang 1978, studierte Wirtschaftsinformatik an der Westfälischen Wilhelms-Universität in Münster. Seit 2003 war er als Wissenschaftlicher Mitarbeiter am European Research Center for Information Systems der WWU Münster tätig. Seine Forschungsschwerpunkte lagen in den Bereichen Wissensmanagement und Information Retrieval. Im Mai 2008 erfolgte seine Promotion zum Doktor der Wirtschaftswissenschaften.
  18. Rahmstorf, G.: Strukturierung von inhaltlichen Daten : Topic Maps und Concepto (2004) 0.00
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    Source
    Wissensorganisation und Edutainment: Wissen im Spannungsfeld von Gesellschaft, Gestaltung und Industrie. Proceedings der 7. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Berlin, 21.-23.3.2001. Hrsg.: C. Lehner, H.P. Ohly u. G. Rahmstorf
  19. Hollink, L.; Assem, M. van: Estimating the relevance of search results in the Culture-Web : a study of semantic distance measures (2010) 0.00
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    Date
    29. 7.2011 14:44:56
    26.12.2011 13:40:22
  20. Schmude, A.N.: Ontologiebasierte Suche und Navigation in webbasierten Informationssystemen : am Beispiel Bürgerinformationsdienste (2004) 0.00
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    Abstract
    Webbasierte Informationssysteme werden heute von einer Vielzahl unterschiedlicher Organisationen angeboten, mit ganz verschiedenen Zielsetzungen. Die technischen Herausforderungen bzgl. Datenhaltung, Pflege der Informationen und Anbindung an das Internet scheinen gelöst. Das Auffinden bestimmter Informationen stellt für viele Nutzer aber dennoch eine große Herausforderung dar. Das gilt für das WWW (WorldWide Web ) als Ganzes, wie auch für viele einzelne webbasierte Informationssysteme. Grund dafür sind im Wesentlichen die nach wie vor ungenügenden Benutzungs-schnittstellen. Heutig gängige webbasierte Informationssysteme bieten Nutzern meist neben einer Navigation die Möglichkeit, Informationen durch das Absenden einer Suchanfrage zu suchen. Beide Strategien, also die Suche und die Navigation, weisen jeweils eigene Probleme in der Umsetzung auf, die es verhindern, dass Nutzer die gewünschte Information einfach auffinden können. Oftmals werden Suchanfragen unspezifisch und allgemein gehalten vorgetragen. Wird eine solche Anfrage mit einer großen Zusammenstellung von Daten beantwortet, man denke nur an Suchergebnisse von Suchmaschinen mit tausenden Treffern, und damit tausenden von Nieten, kann sich schnell Frust einstellen. Aber auch heutige Navigationen sind nicht geeignet, es dem Nutzer so einfach wie möglich zu machen. Sie beschränken sich meist auf Begriffshierarchien. Der Informationsraum wird also in Ober- und Unterklassen gegliedert und die Informationsobjekte den Ebenen zugeordnet. Eine solche Aufteilung kann für den einen sinnvoll und verständlich sein, andere aber in die Irre führen. Zudem lassen sich Begriffe nur anhand zweier Beziehungen, nämlich Ober- und Unterbegriff, strukturieren. Begriffe und Konzepte vieler Themengebiete weisen aber weitere Beziehungen auf, wie "gehört zu", "arbeitet zusammen mit", "entwickelte" um nur ein paar Beispiele zu nennen. Semantische Netze bzw. Ontologien können eine solche Verknüpfung durch die Beschreibung ebendieser Beziehungen leisten. Die Ausgangsüberlegung dieser Arbeit ist es, die Strukturierung des Informationsraums mit Hilfe einer Ontologie vorzunehmen. Diese erweiterte Strukturierung soll sowohl für die Suche als auch für die Navigation genutzt werden, um die Auffindbarkeit von Information zu verbessern. Eine Suchfunktionalität müsste sich nicht mehr nur auf eine wortbasierte Suche verlassen, sondern könnte das Beziehungsgeflecht nutzen. Die Navigation wiederum könnte die Beziehungen explizit machen und dadurch Nutzern helfen, den Informationsraum zu verstehen und dadurch einfacher zielgerichtet zu der gewünschten Information zu navigieren. Als Untersuchungsgegenstand werden in dieser Arbeit Bürgerinformationssysteme betrachtet. Die Anwendungsdomäne webbasierte Bürgerinformation ist ausreichend komplex, um daran die oben angeführten Probleme untersuchen zu können. Heutige Bürgerinformationssysteme weisen, neben anderen Problemen, genau die oben beschriebenen Schwächen auf, wie sich zeigen wird.

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