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  • × theme_ss:"Wissensrepräsentation"
  1. Müller, T.: Wissensrepräsentation mit semantischen Netzen im Bereich Luftfahrt (2006) 0.05 
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    Abstract
    Es ist ein semantisches Netz für den Gegenstandsbereich Luftfahrt modelliert worden, welches Unternehmensinformationen, Organisationen, Fluglinien, Flughäfen, etc. enthält, Diese sind 10 Hauptkategorien zugeordnet worden, die untergliedert nach Facetten sind. Die Begriffe des Gegenstandsbereiches sind mit 23 unterschiedlichen Relationen verknüpft worden (Z. B.: 'hat Standort in', bietet an, 'ist Homebase von', etc). Der Schwerpunkt der Betrachtung liegt auf dem Unterschied zwischen den drei klassischen Standardrelationen und den zusätzlich eingerichteten Relationen, bezüglich ihrem Nutzen für ein effizientes Retrieval. Die angelegten Kategorien und Relationen sind sowohl für eine kognitive als auch für eine maschinelle Verarbeitung geeignet.
    Date
    26. 9.2006 21:00:22
    Type
    x
  2. Haller, S.H.M.: Mappingverfahren zur Wissensorganisation (2002) 0.05 
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    Date
    30. 5.2010 16:22:35
    Type
    x
  3. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.05 
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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.
    Type
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  4. Xiong, C.: Knowledge based text representations for information retrieval (2016) 0.05 
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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.
    Type
    x
  5. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.03 
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    Date
    31. 7.2010 16:58:22
    Source
    Semantic digital libraries. Eds.: S.R. Kruk, B. McDaniel
  6. Thomer, A.; Cheng, Y.-Y.; Schneider, J.; Twidale, M.; Ludäscher, B.: Logic-based schema alignment for natural history Mmuseum databases (2017) 0.03 
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    Abstract
    In natural history museums, knowledge organization systems have gradually been migrated from paper-based catalog ledgers to electronic databases; these databases in turn must be migrated from one platform or software version to another. These migrations are by no means straightforward, particularly when one data schema must be mapped to another-or, when a database has been used in other-than-its-intended manner. There are few tools or methods available to support the necessary work of comparing divergent data schemas. Here we present a proof-of-concept in which we compare two versions of a subset of the Specify 6 data model using Euler/X, a logic-based reasoning tool. Specify 6 is a popular natural history museum database system whose data model has undergone several changes over its lifespan. We use Euler/X to produce visualizations (called "possible worlds") of the different ways that two versions of this data model might be mapped to one another. This proof-of-concept lays groundwork for further approaches that could aid data curators in database migration and maintenance work. It also contributes to research on the unique challenges to knowledge organization within natural history museums, and on the applicability of logic-based approaches to database schema migration or crosswalking.
  7. Tang, X.-B.; Wei Wei, G,-C.L.; Zhu, J.: ¬An inference model of medical insurance fraud detection : based on ontology and SWRL (2017) 0.03 
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  8. Knorz, G.; Rein, B.: Semantische Suche in einer Hochschulontologie (2005) 0.03 
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    Date
    11. 2.2011 18:22:58
  9. Knorz, G.; Rein, B.: Semantische Suche in einer Hochschulontologie : Ontologie-basiertes Information-Filtering und -Retrieval mit relationalen Datenbanken (2005) 0.03 
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    Date
    11. 2.2011 18:22:25
  10. 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) 0.03 
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    Content
    Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
  11. Kruk, S.R.; Kruk, E.; Stankiewicz, K.: Evaluation of semantic and social technologies for digital libraries (2009) 0.02 
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    Date
    1. 8.2010 12:35:22
    Source
    Semantic digital libraries. Eds.: S.R. Kruk, B. McDaniel
  12. Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008) 0.02 
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    Abstract
    In order to transfer the Chinese Classified Thesaurus (CCT) into a machine-processable format and provide CCT-based Web services, a pilot study has been conducted in which a variety of selected CCT classes and mapped thesaurus entries are encoded with SKOS. OWL and RDFS are also used to encode the same contents for the purposes of feasibility and cost-benefit comparison. CCT is a collected effort led by the National Library of China. It is an integration of the national standards Chinese Library Classification (CLC) 4th edition and Chinese Thesaurus (CT). As a manually created mapping product, CCT provides for each of the classes the corresponding thesaurus terms, and vice versa. The coverage of CCT includes four major clusters: philosophy, social sciences and humanities, natural sciences and technologies, and general works. There are 22 main-classes, 52,992 sub-classes and divisions, 110,837 preferred thesaurus terms, 35,690 entry terms (non-preferred terms), and 59,738 pre-coordinated headings (Chinese Classified Thesaurus, 2005) Major challenges of encoding this large vocabulary comes from its integrated structure. CCT is a result of the combination of two structures (illustrated in Figure 1): a thesaurus that uses ISO-2788 standardized structure and a classification scheme that is basically enumerative, but provides some flexibility for several kinds of synthetic mechanisms Other challenges include the complex relationships caused by differences of granularities of two original schemes and their presentation with various levels of SKOS elements; as well as the diverse coordination of entries due to the use of auxiliary tables and pre-coordinated headings derived from combining classes, subdivisions, and thesaurus terms, which do not correspond to existing unique identifiers. The poster reports the progress, shares the sample SKOS entries, and summarizes problems identified during the SKOS encoding process. Although OWL Lite and OWL Full provide richer expressiveness, the cost-benefit issues and the final purposes of encoding CCT raise questions of using such approaches.
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  13. Wong, W.; Liu, W.; Bennamoun, M.: Ontology learning from text : a look back and into the future (2010) 0.02 
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    Content
    Pre-publication version für: ACM Computing Surveys, Vol. X, No. X, Article X, Publication date: X 2011.
  14. Baião Salgado Silva, G.; Lima, G.Â. Borém de Oliveira: Using topic maps in establishing compatibility of semantically structured hypertext contents (2012) 0.02 
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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
  15. Kiren, T.: ¬A clustering based indexing technique of modularized ontologies for information retrieval (2017) 0.02 
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    Date
    20. 1.2015 18:30:22
    Type
    x
  16. Moustafid, Y. El: Semantic Web Techniken für E-Learning (2003) 0.02 
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    Abstract
    Im fünften Kapitel wurden die neuen Suchmaschinen, die ausschließlich auf dem Konzept der Topic Maps basieren und diese Technik auch tatsächlich verwenden, angesprochen und mit Beispielanfragen erläutert. In dieser Diplomarbeit wurden wegen dem großen Einsatzpotential von Topic Maps, viele Gebiete angesprochen, angefangen bei den Webkatalogen über Suchmaschinen bis hin zum E-Learning. Mit XML Topic Maps gibt man den Beziehungen zwischen den verschiedenen Topics die Chance sich auszuzeichnen. Damit erreicht die Suche eine neue, bis dahin unmögliche Qualität. Mit einer Topic Map lassen sich beispielsweise die klassischen Navigationselemente technischer Dokumentation (Inhalt, Index, Glossar etc.) in einheitlicher Weise beschreiben; eine andere Topic Map könnte die inhaltliche Vernetzung von Artikeln in einem Lexikon ausdrücken (z.B. Person A wurde geboren in Stadt B, B liegt in Land C, Oper D wurde komponiert von A, Person E war Zeitgenosse von A) und für "siehe auch"-Verweise sorgen (andere Werke dieses Komponisten, andere Städte in diesem Land etc.). Es klingt wie die Lösung aller Suchprobleme. Allerdings nur in der Theorie. Denn Tools, die in der Lage sind, das Wissen oder die Riesendaten in Topicmaps automatisch zu generieren, sind noch Mangelware, was die Ausbreitung von Topic Maps hemmt. Der Aufbau solcher Netze erfordert sehr viel Zeit und sehr viel "Handarbeit" - und damit auch viel Geld, was viele Firmen davon abhält Topic Maps zu benutzen.
    Type
    x
  17. Stollberg, M.: Ontologiebasierte Wissensmodellierung : Verwendung als semantischer Grundbaustein des Semantic Web (2002) 0.02 
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    Abstract
    Der in Kapitel B behandelte Schwerpunkt ist die Ontologie-Entwicklung. Nach der Erfassung der grundlegenden Charakteristika ontologiebasierter Wissensmodellierung stehen hier die Anforderungen bei der Erstellung einer Ontologie im Vordergrund. Dazu werden die wesentlichen diesbezüglichen Errungenschaften des sogenannten Ontology Engineering erörtert. Es werden zunächst methodologische Ansätze für den Entwicklungsprozess von Ontologien sowie für die einzelnen Aufgabengebiete entwickelter Techniken und Verfahren vorgestellt. Anschließend daran werden Design-Kriterien und ein Ansatz zur Meta-Modellierung besprochen, welche der Qualitätssicherung einer Ontologie dienen sollen. Diese Betrachtungen sollen eine Übersicht über den Erkenntnisstand des Ontology Engineering geben, womit ein wesentlicher Aspekt zur Nutzung ontologiebasierter Verfahren der Wissensmodellierung im Semantic Web abgedeckt wird. Als letzter Aspekt zur Erfassung der Charakteristika ontologiebasierter Wissensmodellierung wird in Kapitel C die Fragestellung bearbeitet, wie Ontologien in Informationssystemen eingesetzt werden können. Dazu werden zunächst die Verwendungsmöglichkeiten von Ontologien identifiziert. Dann werden Anwendungsgebiete von Ontologien vorgestellt, welche zum einen Beispiele für die aufgefundenen Einsatzmöglichkeiten darstellen und zum anderen im Hinblick auf die Untersuchung der Verwendung von Ontologien im Semantic Web grundlegende Aspekte desselben erörtern sollen. Im Anschluss daran werden die wesentlichen softwaretechnischen Herausforderungen besprochen, die sich durch die Verwendung von Ontologien in Informationssystemen ergeben. Damit wird die Erarbeitung der wesentlichen Charakteristika ontologiebasierter Verfahren der Wissensmodellierung als erstem Teil dieser Arbeit abgeschlossen.
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    x
  18. Beßler, S.: Wissensrepräsentation musealer Bestände mittels semantischer Netze : Analyse und Annotation eines Teilbestands des Haus der Geschichte der BRD in Bonn (2010) 0.01 
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    Pages
    X, 54 S
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  19. Wachsmann, L.: Entwurf und Implementierung eines Modells zur Visualisierung von OWL-Properties als Protégé-PlugIn mit Layoutalgorithmen aus Graphviz (2008) 0.01 
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  20. Haas, M.: Methoden der künstlichen Intelligenz in betriebswirtschaftlichen Anwendungen (2006) 0.01 
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Authors

Years

Languages

  • e 107
  • d 44
  • f 1
  • pt 1
  • More… Less…

Types

  • a 95
  • el 40
  • x 35
  • m 7
  • r 3
  • s 3
  • n 1
  • p 1
  • More… Less…

Themes

Subjects

Classifications