-
Michel, D.: Taxonomy of Subject Relationships (1997)
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- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Bean, C.: ¬The semantics of hierarchy : explicit parent-child relationships in MeSH tree structures (1998)
0.25
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- Abstract
- Parent-Child relationships in MeSH trees were surveyed and described, and their patterns in the relational structure were determined for selected broad subject categories and subcategories. Is-a relationships dominated and were more prevalent overall than previously reported; however, an additional 67 different relationships were also seen, most of them nonhierarchical. Relational profiles were found to vary both within and among subject subdomains, but tended to display characteristic domain patterns. The implications for inferential reasoning and other cognitive and computational operations on hierarchical structures are considered
- Series
- Advances in knowledge organization; vol.6
- Source
- Structures and relations in knowledge organization: Proceedings of the 5th International ISKO-Conference, Lille, 25.-29.8.1998. Ed.: W. Mustafa el Hadi et al
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Evens, M.: Thesaural relations in information retrieval (2002)
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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
- Source
- The semantics of relationships: an interdisciplinary perspective. Eds: Green, R., C.A. Bean u. S.H. Myaeng
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Tudhope, D.; Alani, H.; Jones, C.: Augmenting thesaurus relationships : possibilities for retrieval (2001)
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- Abstract
- This paper discusses issues concerning the augmentation of thesaurus relationships, in light of new application possibilities for retrieval. We first discuss a case study that explored the retrieval potential of an augmented set of thesaurus relationships by specialising standard relationships into richer subtypes, in particular hierarchical geographical containment and the associative relationship. We then locate this work in a broader context by reviewing various attempts to build taxonomies of thesaurus relationships, and conclude by discussing the feasibility of hierarchically augmenting the core set of thesaurus relationships, particularly the associative relationship. We discuss the possibility of enriching the specification and semantics of Related Term (RT relationships), while maintaining compatibility with traditional thesauri via a limited hierarchical extension of the associative (and hierarchical) relationships. This would be facilitated by distinguishing the type of term from the (sub)type of relationship and explicitly specifying semantic categories for terms following a faceted approach. We first illustrate how hierarchical spatial relationships can be used to provide more flexible retrieval for queries incorporating place names in applications employing online gazetteers and geographical thesauri. We then employ a set of experimental scenarios to investigate key issues affecting use of the associative (RT) thesaurus relationships in semantic distance measures. Previous work has noted the potential of RTs in thesaurus search aids but also the problem of uncontrolled expansion of query term sets. Results presented in this paper suggest the potential for taking account of the hierarchical context of an RT link and specialisations of the RT relationship
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Fugmann, R.: ¬Die Funktion von semantischen Kategorien in Indexierungssprachen und bei der Indexierung (1986)
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- Abstract
- Wenn man unter "Indexierung" den zweistufigen Prozeß (a) des Erkennens der Essenz eines wiederauffindbar zu machenden Textes und (b) des Wiedergebens dieser Essenz in einer ausreichend wiedergabetreuen und genügend gut voraussagbaren Form versteht, dann kann die Qualität der Indexierung gesteigert werden, wenn sie unter besonderer Beachtung der Begriffe aus einer kleinen Zahl von besonders wichtigen semantischen Kategorien erfolgt. Bei der Gestaltung der Indexierungssprache müssen die Begriffe aus diesen Kategorien in der erforderlichen Detailliertheit in den Wortschatz aufgenommen werden, und Präkombinationen, die zu "multikategorialen" Begroffen führen, sind möglichst weitgehend zu vermeiden. Präkombinationen, die ausschließlich durch Einbeziehung von häufig vorkommenden ("ubiquitätren") monokategorialen Begriffen gebildet werden, können und sollen aus pragmatischen Gründen für den Wortschatz zugelassen werden. Das Konzept des "Relationenweges" erklärt, inwiefern solche Präkombinationen für den Wortschatz nicht schädlich sind
- Source
- Die Klassifikation und ihr Umfeld: Proc. 10. Jahrestagung der Gesellschaft für Klassifikation, Münster, 18.-21.6.1986. Hrsg.: P.O. Degens
-
ALA / Subcommittee on Subject Relationships/Reference Structures: Final Report to the ALCTS/CCS Subject Analysis Committee (1997)
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- Abstract
- The SAC Subcommittee on Subject Relationships/Reference Structures was authorized at the 1995 Midwinter Meeting and appointed shortly before Annual Conference. Its creation was one result of a discussion of how (and why) to promote the display and use of broader-term subject heading references, and its charge reads as follows: To investigate: (1) the kinds of relationships that exist between subjects, the display of which are likely to be useful to catalog users; (2) how these relationships are or could be recorded in authorities and classification formats; (3) options for how these relationships should be presented to users of online and print catalogs, indexes, lists, etc. By the summer 1996 Annual Conference, make some recommendations to SAC about how to disseminate the information and/or implement changes. At that time assess the need for additional time to investigate these issues. The Subcommittee's work on each of the imperatives in the charge was summarized in a report issued at the 1996 Annual Conference (Appendix A). Highlights of this work included the development of a taxonomy of 165 subject relationships; a demonstration that, using existing MARC coding, catalog systems could be programmed to generate references they do not currently support; and an examination of reference displays in several CD-ROM database products. Since that time, work has continued on identifying term relationships and display options; on tracking research, discussion, and implementation of subject relationships in information systems; and on compiling a list of further research needs.
- Content
- Enthält: Appendix A: Subcommittee on Subject Relationships/Reference Structures - REPORT TO THE ALCTS/CCS SUBJECT ANALYSIS COMMITTEE - July 1996 Appendix B (part 1): Taxonomy of Subject Relationships. Compiled by Dee Michel with the assistance of Pat Kuhr - June 1996 draft (alphabetical display) (Separat in: http://web2.ala.org/ala/alctscontent/CCS/committees/subjectanalysis/subjectrelations/msrscu2.pdf) Appendix B (part 2): Taxonomy of Subject Relationships. Compiled by Dee Michel with the assistance of Pat Kuhr - June 1996 draft (hierarchical display) Appendix C: Checklist of Candidate Subject Relationships for Information Retrieval. Compiled by Dee Michel, Pat Kuhr, and Jane Greenberg; edited by Greg Wool - June 1997 Appendix D: Review of Reference Displays in Selected CD-ROM Abstracts and Indexes by Harriette Hemmasi and Steven Riel Appendix E: Analysis of Relationships in Six LC Subject Authority Records by Harriette Hemmasi and Gary Strawn Appendix F: Report of a Preliminary Survey of Subject Referencing in OPACs by Gregory Wool Appendix G: LC Subject Referencing in OPACs--Why Bother? by Gregory Wool Appendix H: Research Needs on Subject Relationships and Reference Structures in Information Access compiled by Jane Greenberg and Steven Riel with contributions from Dee Michel and others edited by Gregory Wool Appendix I: Bibliography on Subject Relationships compiled mostly by Dee Michel with additional contributions from Jane Greenberg, Steven Riel, and Gregory Wool
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Körner, H.G.: Syntax und Gewichtung in Informationssprachen : Ein Fortschrittsbericht über präzisere Indexierung und Computer-Suche (1985)
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- Footnote
- Eine gute Darstellung über die verschiedenen Möglichkeiten der syntaktischen Indexierung
-
Dextre Clarke, S.G.: Thesaural relationships (2001)
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- Abstract
- A thesaurus in the controlled vocabulary environment is a tool designed to support effective infonnation retrieval (IR) by guiding indexers and searchers consistently to choose the same terms for expressing a given concept or combination of concepts. Terms in the thesaurus are linked by relationships of three well-known types: equivalence, hierarchical, and associative. The functions and properties of these three basic types and some subcategories are described, as well as some additional relationship types conunonly found in thesauri. Progressive automation of IR processes and the capability for simultaneous searching of vast networked resources are creating some pressures for change in the categorization and consistency of relationships.
- Date
- 22. 9.2007 15:45:57
- Source
- Relationships in the organization of knowledge. Eds.: Bean, C.A. u. R. Green
-
Boteram, F.: Semantische Relationen in Dokumentationssprachen : vom Thesaurus zum semantischen Netz (2010)
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- Abstract
- Moderne Verfahren des Information Retrieval verlangen nach aussagekräftigen und detailliert relationierten Dokumentationssprachen. Der selektive Transfer einzelner Modellierungsstrategien aus dem Bereich semantischer Technologien für die Gestaltung und Relationierung bestehender Dokumentationssprachen wird diskutiert. In Form einer Taxonomie wird ein hierarchisch strukturiertes Relationeninventar definiert, welches sowohl hinreichend allgemeine als auch zahlreiche spezifische Relationstypen enthält, die eine detaillierte und damit aussagekräftige Relationierung des Vokabulars ermöglichen. Das bringt einen Zugewinn an Übersichtlichkeit und Funktionalität. Im Gegensatz zu anderen Ansätzen und Überlegungen zur Schaffung von Relationeninventaren entwickelt der vorgestellte Vorschlag das Relationeninventar aus der Begriffsmenge eines bestehenden Gegenstandsbereichs heraus.
- Series
- Fortschritte in der Wissensorganisation; Bd.11
- 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
-
Krömmelbein, U.: Linguistische und fachwissenschaftliche Gesichtspunkte der Schlagwortsyntax : Eine vergleichende Untersuchung der Regeln für die Schlagwortvergabe der Deutschen Bibliothek, der RSWK und der Indexierungsverfahren Voll-PRECIS und Kurz-PRECIS (1984)
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- Abstract
- Die deutsche Bibliothek in Frankfurt bietet seit einigen Jahren zentrale Dienste im Bereich der verbalen Sacherschließung an, Um deren Akzeptanz zu verbessern, will die Deutsche Bibliothek ab 1986 von der augenblicklichen gleichordnenden Indexierung zu einem syntaktischen Verfahren übergehen. Als Alternativen standen die RSWK und eine verkürzte Version des britischen Indexierungsverfahrens PRECIS zur Diskussion. Die Anforderungen einer Fachwissenschaft an die Schlagwort-Syntax einer adäquaten Dokumentationssprache werden exemplarisch entwickelt, die vier Alternativen - augenblickliche verbale Sacherschließunf der DB, RSWK, PRECIS (britische Version) und Kurz-PRECIS (DB-Version) - an ihnen gemessen. Die Kriterien basiern auf Grammatiktheorien der modernen Linguistik und gehen von einer Analogie zwischen Dokumentationssprachen und natürlicher Sprache aus.
-
DIN 31623: Indexierung zur inhaltlichen Erschließung von Dokumenten : T.1: Begriffe, Grundlagen; T.2: Gleichordnende Indexierung mit Deskriptoren; T.3: Syntaktische Indexierung mit Deskriptoren (1988)
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- Footnote
- Vgl. auch den Beitrag: Jansen, R.: Intentionen der Indexierungsnorm 31623 und Überlegungen zum Verhältnis gleichordnende/syntaktische Indexierung
-
Casagrande, J.B.; Hale, K.L.: Semantic relations in Papago folk definitions (1967)
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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.
- Source
- Studies in southwestern ethnolinguistics. Eds.: D. Hymes u. W.E. Bittle
-
Miller, U.; Teitelbaum, R.: Pre-coordination and post-coordination : past and future (2002)
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- Abstract
- This article deals with the meaningful processing of information in relation to two systems of Information processing: pre-coordination and post-coordination. The different approaches are discussed, with emphasis an the need for a controlled vocabulary in information retrieval. Assigned indexing, which employs a controlled vocabulary, is described in detail. Types of indexing language can be divided into two broad groups - those using pre-coordinated terms and those depending an post-coordination. They represent two different basic approaches in processing and Information retrieval. The historical development of these two approaches is described, as well as the two tools that apply to these approaches: thesauri and subject headings.
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Relationships in the organization of knowledge (2001)
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- Abstract
- With fourteen contributions grouped in two sections, "Theoretical background" and "Systems", this work discusses the most common relationships used in the organization of recorded knowledge to facilitate information retrieval: the relationships between bibliographic entities, intra- and intertextual relationships, relevance relationships, and subject relationships in thesauri and other classificatory structures. The editors' goal is to "spur further interest, debate, research, and development".
- Content
- Enthält u.a. die Beiträge: GREEN, R.: Relationships in the organization of knowledge: an overview; TILLETT, B.: Bibliographic relationships; CLARKE, S.G.D.: Thesaural relationships; MILSTEAD, J.L.: Standards for relationships between subject indexing terms; HUDON, M.: Relationships in multilingual thesauri; BODENREIDER, O. u. C.A. BEAN: Relationships among knowledge structures: vocabulary integration within a subject domain; BEGHTOL, C.: Relationships in classificatory structure and meaning; BEAN, C.A. u. R. GREEN: Relevance relationships; EL-HOSHY, L.M.: Relationships in Library of Congress Subject Headings; MOLHOLT, P.: The Art and Architecture Thesaurus: controlling relationships through rules and structure; NELSON, S.J. u.a.: Relationships in Medical Subject Headings (MeSH); NEELAMEGHAN, A.: Lateral relationships in multicultural, mulrilingual databases in the spiritual and religous domains: the OM information service; SATIJA, M.P.: Relationships in Ranganathan's Colon classification; MITCHELL, J.S.: Relationships in the Dewey Decimal Classification System
- Editor
- Bean, C.A. u. R. Green
- Footnote
- Rez. in: Knowledge organization 28(2001) no.4, S.208-210 (S. Betrand-Gastaldy)
-
¬The LCSH century : One hundred years with the Library of Congress Subject Headings system (2000)
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- Content
- Enthält die Beiträge: BACKGROUND: Alva T STONE: The LCSH Century: A Brief History of the Library of Congress Subject Headings, and Introduction to the Centennial Essays - THEORY AND PRINCIPLES: Elaine SVENONIUS: LCSH: Semantics, Syntax and Specificity; Heidi Lee HOERMAN u. Kevin A. FURNISS: Turning Practice into Principles: A Comparison of the IFLA: Principles Underlying Subject Heading Languages (SHLs) and the Principles Underlying the Library of Congress Subject Headings System; Hope A. OLSON: Difference, Culture and Change:The Untapped Potential of LCSH - ONLINE ENVIRONMENT: Pauline Atherton COCHRANE: Improving LCSH for Use in Online Catalogs Revisited-What Progress Has Been Made? What Issues Still Remain?; Gregory WOOL: Filing and Precoordination: How Subject Headings Are Displayed in Online Catalogs and Why It Matters; Stephen HEARN: Machine-Assisted Validation of LC Subject Headings: Implications for Authority File Structure - SPECIFIC PERSPECTIVES: Thomas MANN: Teaching Library of Congress Subject Headings; Louisa J. KREIDER: LCSH Works! Subject Searching Effectiveness at the Cleveland Public Library and the Growth of Library of Congress Subject Headings Through Cooperation; Harriette HEMMASI u J. Bradford YOUNG: LCSH for Music: Historical and Empirical Perspectives; Joseph MILLER u. Patricia KUHR: LCSH and Periodical Indexing: Adoption vs. Adaptation; David P MILLER: Out from Under: Form/Genre Access in LCSH - WORLD VIEW: Magda HEINER-FREILING: Survey on Subject Heading Languages Used in National Libraries and Bibliographies; Andrew MacEWAN: Crossing Language Barriers in Europe: Linking LCSH to Other Subject Heading Languages; Alvaro QUIJANO-SOLIS u.a.: Automated Authority Files of Spanish-Language Subject Headings - FUTURE PROSPECTS: Lois Mai CHAN u. Theodora HODGES: Entering the Millennium: a new century for LCSH
- Footnote
- Die einzelnen Beiträge sind über die Buchversion erfasst: In: The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T. Stone. New York: Haworth Press 2000.
- Theme
- Verbale Doksprachen im Online-Retrieval
-
¬The semantics of relationships : an interdisciplinary perspective (2002)
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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
- Editor
- Green, R., C.A. Bean u. S.H. Myaeng
- Footnote
- Mit ausführlicher Einleitung der Herausgeber zu den Themen: Types of relationships - Relationships in knowledge representation and reasoning - Applications of relationships
-
¬The LCSH century : One hundred years with the Library of Congress Subject Headings system (2000)
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- Content
- Enthält die Beiträge: BACKGROUND: Alva T STONE: The LCSH Century: A Brief History of the Library of Congress Subject Headings, and Introduction to the Centennial Essays - THEORY AND PRINCIPLES: Elaine SVENONIUS: LCSH: Semantics, Syntax and Specificity; Heidi Lee HOERMAN u. Kevin A. FURNISS: Turning Practice into Principles: A Comparison of the IFLA: Principles Underlying Subject Heading Languages (SHLs) and the Principles Underlying the Library of Congress Subject Headings System; Hope A. OLSON: Difference, Culture and Change:The Untapped Potential of LCSH - ONLINE ENVIRONMENT: Pauline Atherton COCHRANE: Improving LCSH for Use in Online Catalogs Revisited-What Progress Has Been Made? What Issues Still Remain?; Gregory WOOL: Filing and Precoordination: How Subject Headings Are Displayed in Online Catalogs and Why It Matters; Stephen HEARN: Machine-Assisted Validation of LC Subject Headings: Implications for Authority File Structure - SPECIFIC PERSPECTIVES: Thomas MANN: Teaching Library of Congress Subject Headings; Louisa J. KREIDER: LCSH Works! Subject Searching Effectiveness at the Cleveland Public Library and the Growth of Library of Congress Subject Headings Through Cooperation; Harriette HEMMASI u J. Bradford YOUNG: LCSH for Music: Historical and Empirical Perspectives; Joseph MILLER u. Patricia KUHR: LCSH and Periodical Indexing: Adoption vs. Adaptation; David P MILLER: Out from Under: Form/Genre Access in LCSH - WORLD VIEW: Magda HEINER-FREILING: Survey on Subject Heading Languages Used in National Libraries and Bibliographies; Andrew MacEWAN: Crossing Language Barriers in Europe: Linking LCSH to Other Subject Heading Languages; Alvaro QUIJANO-SOLIS u.a.: Automated Authority Files of Spanish-Language Subject Headings - FUTURE PROSPECTS: Lois Mai CHAN u. Theodora HODGES: Entering the Millennium: a new century for LCSH
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Milstead, J.L.: Standards for relationships between subject indexing terms (2001)
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- Abstract
- Relationships between the terms in thesauri and Indexes are the subject of national and international standards. The standards for thesauri enumerate and provide criteria for three basic types of relationship: equivalence, hierarchical, and associative. Standards and guidelines for indexes draw an the thesaurus standards to provide less detailed guidance for showing relationships between the terms used in an Index. The international standard for multilingual thesauri adds recommendations for assuring equal treatment of the languages of a thesaurus. The present standards were developed when lookup and search were essentially manual, and the value of the kinds of relationships has never been determined. It is not clear whether users understand or can use the distinctions between kinds of relationships. On the other hand, sophisticated text analysis systems may be able both to assist with development of more powerful term relationship schemes and to use the relationships to improve retrieval.
- Source
- Relationships in the organization of knowledge. Eds.: Bean, C.A. u. R. Green
-
Principles underlying subject heading languages (SHLs) (1999)
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- Classification
- AN 75400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Schlagwortregeln, Schlagwortverzeichnis
- Editor
- Lopes, M.I. u. J. Beall
- RVK
- AN 75400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Schlagwortregeln, Schlagwortverzeichnis
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Panzer, M.: Semantische Integration heterogener und unterschiedlichsprachiger Wissensorganisationssysteme : CrissCross und jenseits (2008)
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- Abstract
- Klassische bibliothekarische Indexierungswerkzeuge werden bis heute nur selten fürs Retrieval nutzbar gemacht; die Wichtigkeit, verschiedene dieser Vokabularien zu harmonisieren und integriert zu verwenden, ist noch immer keine Selbstverständlichkeit. Im Rahmen des DFG-Projektes "CrissCross" wird, ausgehend von der deutschen Ausgabe der Dewey-Dezimalklassifikation, eine Verknüpfung zwischen der DDC und der Schlagwortnormdatei (SWD) aufgebaut, um eine verbale Suche über klassifikatorisch erschlossene Bestände zu ermöglichen. Als Verbreiterung der Basis des verbalen Zugriffs wird außerdem das Mapping der amerikanischen LCSH und des französischen RAMEAU angestrebt. Nach einer kurzen Vorstellung von CrissCross und der Abgrenzung gegenüber ähnlichen Unterfangen werden Rückwirkungen semantischer Integration auf die verknüpften Vokabulare diskutiert. Wie müssen und können sich z.B. Thesauri verändern, wenn sie mit anderen (strukturheterologen) Systemen verknüpft sind? Dabei liegt ein Schwerpunkt der Analyse auf dem semantischen Verhältnis üblicher Mappingrelationen zu den verknüpften Begriffen (besonders im Hinblick auf Polysemie). Außerdem wird der Mehrwert fürs Retrieval auf der Basis solcher Wissensorganisationssysteme, z.B. durch automatisierten Zugriff über Ontologien, diskutiert.
- Series
- Fortschritte in der Wissensorganisation; Bd.10
- Source
- Kompatibilität, Medien und Ethik in der Wissensorganisation - Compatibility, Media and Ethics in Knowledge Organization: Proceedings der 10. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation Wien, 3.-5. Juli 2006 - Proceedings of the 10th Conference of the German Section of the International Society of Knowledge Organization Vienna, 3-5 July 2006. Ed.: H.P. Ohly, S. Netscher u. K. Mitgutsch
