Search (66 results, page 1 of 4)

  • × theme_ss:"Begriffstheorie"
  1. Axelos, C.; Flasch, K.; Schepers, H.; Kuhlen, R.; Romberg, R.; Zimmermann, R.: Allgemeines/Besonderes (1971-2007) 0.39 
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    Footnote
    DOI: 10.24894/HWPh.5033. Vgl. unter: https://www.schwabeonline.ch/schwabe-xaveropp/elibrary/start.xav#__elibrary__%2F%2F*%5B%40attr_id%3D%27verw.allgemeinesbesonderes%27%5D__1515856414979.
  2. Wilbert, R.: Assoziative Begriffsrepräsentation in neuronalen Netzwerken : Zur Problematik eines assoziativen Zugriffs in Information Retrieval Systemen (1991) 0.01 
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  3. Evens, M.: Thesaural relations in information retrieval (2002) 0.01 
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    Abstract
    Thesaural relations have long been used in information retrieval to enrich queries; they have sometimes been used to cluster documents as well. Sometimes the first query to an information retrieval system yields no results at all, or, what can be even more disconcerting, many thousands of hits. One solution is to rephrase the query, improving the choice of query terms by using related terms of different types. A collection of related terms is often called a thesaurus. This chapter describes the lexical-semantic relations that have been used in building thesauri and summarizes some of the effects of using these relational thesauri in information retrieval experiments
    Series
    Information science and knowledge management; vol.3
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  4. Khoo, C.; Myaeng, S.H.: Identifying semantic relations in text for information retrieval and information extraction (2002) 0.01 
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    Abstract
    Automatic identification of semantic relations in text is a difficult problem, but is important for many applications. It has been used for relation matching in information retrieval to retrieve documents that contain not only the concepts but also the relations between concepts specified in the user's query. It is an integral part of information extraction-extracting from natural language text, facts or pieces of information related to a particular event or topic. Other potential applications are in the construction of relational thesauri (semantic networks of related concepts) and other kinds of knowledge bases, and in natural language processing applications such as machine translation and computer comprehension of text. This chapter examines the main methods used for identifying semantic relations automatically and their application in information retrieval and information extraction.
    Series
    Information science and knowledge management; vol.3
  5. Hetzler, B.: Visual analysis and exploration of relationships (2002) 0.01 
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    Abstract
    Relationships can provide a rich and powerful set of information and can be used to accomplish application goals, such as information retrieval and natural language processing. A growing trend in the information science community is the use of information visualization-taking advantage of people's natural visual capabilities to perceive and understand complex information. This chapter explores how visualization and visual exploration can help users gain insight from known relationships and discover evidence of new relationships not previously anticipated.
    Series
    Information science and knowledge management; vol.3
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  6. Casagrande, J.B.; Hale, K.L.: Semantic relations in Papago folk definitions (1967) 0.01 
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    Footnote
    Zitiert in: Evens, M.: Thesaural relations in information retrieval. In: The semantics of relationships: an interdisciplinary perspective. Eds: R. Green u.a. Dordrecht: Kluwer 2002. S.143-160.
  7. ¬The semantics of relationships : an interdisciplinary perspective (2002) 0.01 
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    Abstract
    Work on relationships takes place in many communities, including, among others, data modeling, knowledge representation, natural language processing, linguistics, and information retrieval. Unfortunately, continued disciplinary splintering and specialization keeps any one person from being familiar with the full expanse of that work. By including contributions form experts in a variety of disciplines and backgrounds, this volume demonstrates both the parallels that inform work on relationships across a number of fields and the singular emphases that have yet to be fully embraced, The volume is organized into 3 parts: (1) Types of relationships (2) Relationships in knowledge representation and reasoning (3) Applications of relationships
    Content
    Enthält die Beiträge: Pt.1: Types of relationships: CRUDE, D.A.: Hyponymy and its varieties; FELLBAUM, C.: On the semantics of troponymy; PRIBBENOW, S.: Meronymic relationships: from classical mereology to complex part-whole relations; KHOO, C. u.a.: The many facets of cause-effect relation - Pt.2: Relationships in knowledge representation and reasoning: GREEN, R.: Internally-structured conceptual models in cognitive semantics; HOVY, E.: Comparing sets of semantic relations in ontologies; GUARINO, N., C. WELTY: Identity and subsumption; JOUIS; C.: Logic of relationships - Pt.3: Applications of relationships: EVENS, M.: Thesaural relations in information retrieval; KHOO, C., S.H. MYAENG: Identifying semantic relations in text for information retrieval and information extraction; McCRAY, A.T., O. BODENREICHER: A conceptual framework for the biiomedical domain; HETZLER, B.: Visual analysis and exploration of relationships
    Series
    Information science and knowledge management; vol.3
  8. Stock, W.: Begriffe und semantische Relationen in der Wissensrepräsentation (2009) 0.01 
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    Abstract
    Begriffsorientiertes Information Retrieval bedarf einer informationswissenschaftlichen Theorie der Begriffe sowie der semantischen Relationen. Ein Begriff wird durch seine Intension und Extension sowie durch Definitionen bestimmt. Dem Problem der Vagheit begegnen wir durch die Einführung von Prototypen. Wichtige Definitionsarten sind die Begriffserklärung (nach Aristoteles) und die Definition über Familienähnlichkeiten (im Sinne Wittgensteins). Wir modellieren Begriffe als Frames (in der Version von Barsalou). Die zentrale paradigmatische Relation in Wissensordnungen ist die Hierarchie, die in verschiedene Arten zu gliedern ist: Hyponymie zerfällt in die Taxonomie und die einfache Hyponymie, Meronymie in eine ganze Reihe unterschiedlicher Teil-Ganzes-Beziehungen. Wichtig für praktische Anwendungen ist die Transitivität der jeweiligen Relation. Eine unspezifische Assoziationsrelation ist bei den angepeilten Anwendungen wenig hilfreich und wird durch ein Bündel von generalisierbaren und fachspezifischen Relationen ersetzt. Unser Ansatz fundiert neue Optionen der Anwendung von Wissensordnungen in der Informationspraxis neben ihrem "klassischen" Einsatz beim Information Retrieval: Erweiterung von Suchanfragen (Anwendung der semantischen Nähe), automatisches Schlussfolgern (Anwendung der terminologischen Logik in Vorbereitung eines semantischen Web) und automatische Berechnungen (bei Funktionalbegriffen mit numerischen Wertangaben).
    Source
    Information - Wissenschaft und Praxis. 60(2009) H.8, S.403-420
  9. Campos, L.M.: Princípios teóricos usados na elaboracao de ontologias e sua influência na recuperacao da informacao com uso de de inferências [Theoretical principles used in ontology building and their influence on information retrieval using inferences] (2021) 0.01 
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    Abstract
    Several instruments of knowledge organization will reflect different possibilities for information retrieval. In this context, ontologies have a different potential because they allow knowledge discovery, which can be used to retrieve information in a more flexible way. However, this potential can be affected by the theoretical principles adopted in ontology building. The aim of this paper is to discuss, in an introductory way, how a (not exhaustive) set of theoretical principles can influence an aspect of ontologies: their use to obtain inferences. In this context, the role of Ingetraut Dahlberg's Theory of Concept is discussed. The methodology is exploratory, qualitative, and from the technical point of view it uses bibliographic research supported by the content analysis method. It also presents a small example of application as a proof of concept. As results, a discussion about the influence of conceptual definition on subsumption inferences is presented, theoretical contributions are suggested that should be used to guide the formation of hierarchical structures on which such inferences are supported, and examples are provided of how the absence of such contributions can lead to erroneous inferences
  10. Hjoerland, B.: Concept theory (2009) 0.01 
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    Abstract
    Concept theory is an extremely broad, interdisciplinary and complex field of research related to many deep fields with very long historical traditions without much consensus. However, information science and knowledge organization cannot avoid relating to theories of concepts. Knowledge organizing systems (e.g., classification systems, thesauri, and ontologies) should be understood as systems basically organizing concepts and their semantic relations. The same is the case with information retrieval systems. Different theories of concepts have different implications for how to construe, evaluate, and use such systems. Based on a post-Kuhnian view of paradigms, this article put forward arguments that the best understanding and classification of theories of concepts is to view and classify them in accordance with epistemological theories (empiricism, rationalism, historicism, and pragmatism). It is also argued that the historicist and pragmatist understandings of concepts are the most fruitful views and that this understanding may be part of a broader paradigm shift that is also beginning to take place in information science. The importance of historicist and pragmatic theories of concepts for information science is outlined.
    Footnote
    Vgl.: Szostak, R.: Comment on Hjørland's concept theory in: Journal of the American Society for Information Science and Technology. 61(2010) no.5, S. 1076-1077 und die Erwiderung darauf von B. Hjoerland (S.1078-1080)
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.8, S.1519-1536
    Theme
    Information
  11. Nakamura, Y.: Subdivisions vs. conjunctions : a discussion on concept theory (1998) 0.01 
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    Abstract
    After studying the relations between two words(nouns) that constitute a compound term, the relation between corresponding concepts discussed. The impossibility of having a conjunction between two concepts that have no common feature causes inconvenience in the application of concept theory to information retrieval problems. Another kind of conjunctions, different from that by co-occurrence, is proposed and characteristics of this conjunction is studied. It revealed that one of new ones has the same character with colon combination in UDC. The possibility of having three kinds of conjunction including Wsterian concept conjunction is presented. It is also discussed that subdivisions can be replaced by new conjunctions
  12. Hovy, E.: Comparing sets of semantic relations in ontologies (2002) 0.00 
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    Series
    Information science and knowledge management; vol.3
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  13. O'Neill, E.T.; Kammerer, K.A.; Bennett, R.: ¬The aboutness of words (2017) 0.00 
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    Abstract
    Word aboutness is defined as the relationship between words and subjects associated with them. An aboutness coefficient is developed to estimate the strength of the aboutness relationship. Words that are randomly distributed across subjects are assumed to lack aboutness and the degree to which their usage deviates from a random pattern indicates the strength of the aboutness. To estimate aboutness, title words and their associated subjects are extracted from the titles of non-fiction English language books in the OCLC WorldCat database. The usage patterns of the title words are analyzed and used to compute aboutness coefficients for each of the common title words. Words with low aboutness coefficients (An and In) are commonly found in stop word lists, whereas words with high aboutness coefficients (Carbonate, Autism) are unambiguous and have a strong subject association. The aboutness coefficient potentially can enhance indexing, advance authority control, and improve retrieval.
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.10, S.2471-2483
  14. Olson, H.A.: How we construct subjects : a feminist analysis (2007) 0.00 
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    Abstract
    To organize information, librarians create structures. These structures grow from a logic that goes back at least as far as Aristotle. It is the basis of classification as we practice it, and thesauri and subject headings have developed from it. Feminist critiques of logic suggest that logic is gendered in nature. This article will explore how these critiques play out in contemporary standards for the organization of information. Our widely used classification schemes embody principles such as hierarchical force that conform to traditional/Aristotelian logic. Our subject heading strings follow a linear path of subdivision. Our thesauri break down subjects into discrete concepts. In thesauri and subject heading lists we privilege hierarchical relationships, reflected in the syndetic structure of broader and narrower terms, over all other relationships. Are our classificatory and syndetic structures gendered? Are there other options? Carol Gilligan's In a Different Voice (1982), Women's Ways of Knowing (Belenky, Clinchy, Goldberger, & Tarule, 1986), and more recent related research suggest a different type of structure for women's knowledge grounded in "connected knowing." This article explores current and potential elements of connected knowing in subject access with a focus on the relationships, both paradigmatic and syntagmatic, between concepts.
    Content
    Beitrag in einem Themenheft 'Gender Issues in Information Needs and Services'.
    Date
    11.12.2019 19:00:22
  15. Jouis, C.: Logic of relationships (2002) 0.00 
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    Date
    1.12.2002 11:12:22
    Series
    Information science and knowledge management; vol.3
  16. Principles of semantic networks : explorations in the representation of knowledge (1991) 0.00 
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    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  17. Sechser, O.: Modi der Bedeutung von Elementarausdrücken in Retrieval-Sprachen (1979) 0.00 
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    Abstract
    Denotation und Intension sind die bevorzugten Bedeutungsmode für Sprachen mit fixem semantischem Universum und ohne Polysemie (formale Sprachen, terminologische Subsets von Fachsprachen). Je nach dem philosophischen Standpunkt und dem methodologischen Ansatz können diese Modi unterschiedlich, manchmal auch präziser definiert und unterteilt werden. Bei der Auswahl von Ausdrücken für thematische und informationsinhaltliche Beschreibung von Texten spielt der Modus der Konnotation eine besondere Rolle. Durch Untersuchung der relevanzvermittelten Konnotation wird Einblick in die innere semantische Struktur der untersuchten Retrieval-Sprache gewonnen
  18. Barite, M.G.: ¬The notion of "category" : its implications in subject analysis and in the construction and evaluation of indexing languages (2000) 0.00 
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    Abstract
    The notion of category, from Aristotle and Kant to the present time, has been used as a basic intellectual tool for the analysis of the existence and changeableness of things. Ranganathan was the first to extrapolate the concept into the Theory of Classification, placing it as an essential axis for the logical organization of knowledge and the construction of indexing languages. This paper proposes a conceptual and methodological reexamination of the notion of category from a functional and instrumental perspective, and tries to clarify the essential characters of categories in that context, and their present implications regarding the construction and evaluation of indexing languages
  19. Dahlberg, I.: ¬Die gegenstandsbezogene, analytische Begriffstheorie und ihre Definitionsarten (1987) 0.00 
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    Pages
    S.9-22
  20. Wüster, E.: Begriffs- und Themaklassifikation : Unterschiede in ihrem Wesen und in ihrer Anwendung (1971) 0.00 
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    Source
    Nachrichten für Dokumentation. 22(1971) H.3, S.98-104 (T.1); H.4, S.143-150 (T.2)

Authors

Years

Languages

  • e 44
  • d 20
  • nl 1
  • pt 1
  • More… Less…

Types

  • a 53
  • m 8
  • s 5
  • el 2
  • n 1
  • p 1
  • More… Less…

Themes

Subjects

Classifications