Search (37 results, page 2 of 2)

  • × language_ss:"e"
  • × theme_ss:"Konzeption und Anwendung des Prinzips Thesaurus"
  • × type_ss:"a"
  1. McCulloch, E.: Thesauri: practical guidance for construction (2005) 0.01
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    Abstract
    Purpose - With the growing recognition that thesauri aid information retrieval, organisations are beginning to adopt, and in many cases, create thesauri. This paper offers some guidance on the construction process. Design/methodology/approach - An opinion piece with a practical focus, based on recent experiences gleaned from consultancy work. Findings - A number of steps can be taken to ensure any thesaurus under construction is fit for purpose. Due consideration is therefore given to aspects such as term selection, structure and notation, thesauri standards, software and Web display issues, thesauri evaluation and maintenance. This paper also notes that creating new subject schemes from scratch, however attractive, contributes to the plethora of terminologies currently in existence and can limit user searching within particular contexts. The decision to create a "new" thesaurus should therefore be taken carefully and observance of standards is paramount. Practical implications - This paper offers advice to assist practitioners in the development of thesauri. Originality/value - Useful guidance for those practitioners new to the area of thesaurus construction is provided, together with an overview of selected key processes involved in the construction of a thesaurus.
  2. Eastman, C.M.: Overlaps in postings to thesaurus terms : a preliminary study (1988) 0.01
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    Date
    25.12.1995 22:52:34
  3. Crouch, C.J.: ¬An approach to the automatic construction of global thesauri (1990) 0.01
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    Date
    22. 4.1996 3:39:53
  4. Busch, J.A.: Building and accessing vocabulary resources for networked resource discovery and navigation (1998) 0.01
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    Date
    22. 9.1997 19:16:05
  5. Dextre Clarke, S.G.: Thesaural relationships (2001) 0.01
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    Date
    22. 9.2007 15:45:57
  6. Nielsen, M.L.: Thesaurus construction : key issues and selected readings (2004) 0.01
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    Date
    18. 5.2006 20:06:22
  7. Schneider, J.W.; Borlund, P.: ¬A bibliometric-based semiautomatic approach to identification of candidate thesaurus terms : parsing and filtering of noun phrases from citation contexts (2005) 0.01
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    Date
    8. 3.2007 19:55:22
  8. Dextre Clarke, S.G.: Evolution towards ISO 25964 : an international standard with guidelines for thesauri and other types of controlled vocabulary (2007) 0.01
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    Date
    8.12.2007 19:25:22
  9. Martín-Moncunill, D.; García-Barriocanal, E.; Sicilia, M.-A.; Sánchez-Alonso, S.: Evaluating the practical applicability of thesaurus-based keyphrase extraction in the agricultural domain : insights from the VOA3R project (2015) 0.00
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    Abstract
    The use of Knowledge Organization Systems (KOSs) in aggregated metadata collections facilitates the implementation of search mechanisms operating on the same term or keyphrase space, thus preparing the ground for improved browsing, more accurate retrieval and better user profiling. Automatic thesaurus-based keyphrase extraction appears to be an inexpensive tool to obtain this information, but the studies on its effectiveness are scattered and do not consider the practical applicability of these techniques compared to the quality obtained by involving human experts. This paper presents an evaluation of keyphrase extraction using the KEA software and the AGROVOC vocabulary on a sample of a large collection of metadata in the field of agriculture from the AGRIS database. This effort includes a double evaluation, the classical automatic evaluation based on precision and recall measures, plus a blind evaluation aimed to contrast the quality of the keyphrases extracted against expert-provided samples and against the keyphrases originally recorded in the metadata. Results show not only that KEA outperforms humans in matching the original keyphrases, but also that the quality of the keyphrases extracted was similar to those provided by humans.
  10. Losee, R.: Thesaurus structure, descriptive parameters, and scale (2016) 0.00
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    Abstract
    A thesaurus contains a set of terms or features that may be used to represent recorded information, including prose documents or scientific data sets. The focus of this work is on the basic structural nature of a thesaurus itself, not on how people develop a thesaurus or how a thesaurus effects retrieval performance. Thesauri in this research are automatically developed in a simulation from sets of randomly or exhaustively generated documents. Each thesaurus is generated by the Thesaurus Generator software from a set of several hundred documents, and thousands of different document sets are used as input to the Thesaurus Generator, producing thousands of thesauri. Thus, thousands of thesauri are generated for each data point in accompanying graphs. The characteristics of this large number of thesauri are studied so that the relationships between thesaurus parameters can be determined. Some rules governing these relationships are suggested, addressing factors such as tree height and width, number of tree roots in thesauri, and number of terms available for the vocabulary. How these parameters scale as vocabularies grow is addressed. These results apply to various information systems that contain features with hierarchical relationships, including many thesauri and ontologies.
  11. Schmitz-Esser, W.: Thesaurus and beyond : an advanced formula for linguistic engineering and information retrieval (1999) 0.00
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    Source
    Knowledge organization. 26(1999) no.1, S.10-22
  12. Aitchison, J.; Dextre Clarke, S.G.: ¬The Thesaurus : a historical viewpoint, with a look to the future (2004) 0.00
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    Date
    22. 9.2007 15:46:13
  13. Bagheri, M.: Development of thesauri in Iran (2006) 0.00
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    Source
    Indexer. 25(2006) no.1, S.19-22
  14. Cheti, A.; Viti, E.: Functionality and merits of a faceted thesaurus : the case of the Nuovo soggettario (2023) 0.00
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    Date
    26.11.2023 18:59:22
  15. Assem, M. van: Converting and integrating vocabularies for the Semantic Web (2010) 0.00
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    Abstract
    This thesis focuses on conversion of vocabularies for representation and integration of collections on the Semantic Web. A secondary focus is how to represent metadata schemas (RDF Schemas representing metadata element sets) such that they interoperate with vocabularies. The primary domain in which we operate is that of cultural heritage collections. The background worldview in which a solution is sought is that of the Semantic Web research paradigmwith its associated theories, methods, tools and use cases. In other words, we assume the SemanticWeb is in principle able to provide the context to realize interoperable collections. Interoperability is dependent on the interplay between representations and the applications that use them. We mean applications in the widest sense, such as "search" and "annotation". These applications or tasks are often present in software applications, such as the E-Culture application. It is therefore necessary that applications requirements on the vocabulary representation are met. This leads us to formulate the following problem statement: HOW CAN EXISTING VOCABULARIES BE MADE AVAILABLE TO SEMANTIC WEB APPLICATIONS?
  16. Milstead, J.L.: Thesauri in a full-text world (1998) 0.00
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    Date
    22. 9.1997 19:16:05
  17. Mooers, C.N.: ¬The indexing language of an information retrieval system (1985) 0.00
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    Footnote
    Original in: Information retrieval today: papers presented at an Institute conducted by the Library School and the Center for Continuation Study, University of Minnesota, Sept. 19-22, 1962. Ed. by Wesley Simonton. Minneapolis, Minn.: The Center, 1963. S.21-36.