Search (123 results, page 2 of 7)

  • × theme_ss:"Konzeption und Anwendung des Prinzips Thesaurus"
  • × year_i:[1990 TO 2000}
  1. Rudell-Betts, L.: New rules for thesauri (1995) 0.00 
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    Abstract
    A review of ANSI-NISO Z39-19-1993 intended for indexers
    Type
    a
  2. Chmielewska-Gorczycy, E.: Funkcje tezaurusa w systemie informacy jno-wyszzukiwawczm (1995) 0.00 
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    Abstract
    Discusses the various functions which a thesaurus can have. Highlights the main function of a thesaurus in vocabulary control, eliminating natural language ambiguity and providing consistency of indexing, and serving as an aid in the searching process. Further discusses the function of a search thesaurus in serving as a user's aid in full text systems and in free indexing systems, and the additional function of an online thesaurus integrated with an online database, that of a vocabulary master file. Notes also how a thesaurus can function as a switching language or intermediary lexicon in multidatabase systems
    Type
    a
  3. Roulin, C.: Sub-thesauri as part of a metathesaurus (1992) 0.00 
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    Abstract
    A metathesaurus is a set made of a reference thesaurus and various forms of indexing languages attached to it. Among these, the sub-thesauri cover restricted fields in more detail. A functional definition of the sub-thesaurus is proposed: elements, relationships, sub-systems and rules to be respected to preserve the possibilities for communication via the reference thesaurus. Considerations on the methods of presentation, the use and the compilation are also given
    Type
    a
  4. Pollard, R.: ¬A hypertext-based thesaurus as a subject browsing aid for bibliographic databases (1993) 0.00 
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    Abstract
    Part of a special issue on hypertext and information retrieval. Conventional information retrieval systems provide little support for browsing. Browsing is the major method of searching in hypertext system but users can become disoriented even when browsing small information space. If hypertext is to be used to support browsing in bibliographic databases navigational assistance will be required. Examines the role of thesauri as navigational aids for subject domains of Bibliographic databases. Presents the design of an experimental hypertext-based browsing inference for a thesaurus and its implementation using a commercially available hypertext program. Examines strategies for linking the thesaurus to a database
    Type
    a
  5. Williamson, N.J.: Deriving a thesaurus from a restructured UDC (1996) 0.00 
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    Abstract
    The derivation of a thesaurus from a new schedule for UDC class 61 Medical Sciences which has been restructured into a faceted classification system using the framework provided by the Bliss Bibliographic Classification. The resulting thesaurus is intended to serve as a tool for indexing and searching but will also be the index to the 61 class itself. The background for the research is briefly described. The sources and methods used to select the descriptors and define their relationships are discussed. Problems are identified and some solutions proposed
    Type
    a
  6. Pastor, J.A.; Saorin, T.: ¬Un interfaz hipertexto para un sistema de gestion de tesauros (1996) 0.00 
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    Abstract
    Shows the possibilities that exist to create a basic hypertext interface for a thesaurus management system. The project has been built in 3 stages: conceptual data model for the thesaurus; development of the management tools, that is, the thesaurus management system; and the hypertext interfaces. The system has been developed on Windows and combines the power of relational database management systems and the navigational flexibility of Guide, a hypertext shell. presents 2 interface models. Concludes that hypertext interfaces improve management, and open a new path for knowledge organization research
    Footnote
    Übers. des Titels: A hypertext interface for a thesaurus management system
    Type
    a
  7. Jones, S.: ¬A thesaurus data model for an intelligent retrieval system (1993) 0.00 
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    Abstract
    This paper demonstrates the application of conventional database design techniques to thesaurus representation. The thesaurus is considered as a printed document, as a semantic net, and as a relational database to be used in conjunction with an intelligent information retrieval system. Some issues raised by analysis of two standard thesauri include: the prevalence of compound terms and the representation of term structure; thesaurus redundancy and the extent to which it can be eliminated in machine-readable versions; the difficulty of exploiting thesaurus knowledge originally designed for human rather than automatic interpretation; deriving 'strength of association' measures between terms in a thesaurus considered as a semantic net; facet representation and the need for variations in the data model to cater for structural differences between thesauri. A complete schema of database tables is presented, with an outline suggestion for using the stored information when matching one or more thesaurus terms with a user's query
    Type
    a
  8. Lopez-Huertas, M.J.: Thesaurus structure design : a conceptual approach for improved interaction (1997) 0.00 
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    Abstract
    The need for thesauri to help users in their search for information in online information systems has been discussed for several decades. Many wide-ranging contributions have been made to solve this problem. Nevertheless, investigation is needed to design a thesaurus structure based on what is relevant for users and generators of information within a specific subject domain. Explores the possibility of creating a thesaurus from the cognitive viewpoint. This approach is based on a system that organizes its representation of knowledge or its classification as closely as possible to the authors' and users' images of the subject domain with the objective of increasing the interaction between users and texts, and thus the communication in a given information retrieval system. Discourse analysis is used as a main method to identify the categories and its relevance for building such a structure is discussed
    Type
    a
  9. Little, K.: Constructing a thesaurus of environmental protection terms (1993) 0.00 
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    Abstract
    Discusses the background to and the process of thesaurus construction in an interdisciplinary soft science subject, environmental protection, for a specific government organization, the Environmental Protection Authority, Western Australia. Discusses and recommends methods of construction and develops a decision making checklists to aid in managing the task. Concentrates on the difficulties of creating a thesaurus in the real world compared to textual advice on thesaurus construction
    Type
    a
  10. Davies, R.: Thesaurus-aided searching in search and retrieval protocols (1996) 0.00 
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    Abstract
    Open system protocols for search and retrieval have not provided explicit ways in which to implement thesaurus-aided searching. A number of different approaches within the existing protocols, as well as a proposed service, are evaluated. A general approach to implementing thesaurus-aided searching, particularly during consultation of a thesaurus, requires an entirely new service, whose main features are described
    Type
    a
  11. Nkwenti-Azeh, B.: ¬The use of thesaural facets and definitions for the representation of knowledge structures (1994) 0.00 
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    Abstract
    Terminological definitions establish relations between terms and concepts by specifying the characteristics of each concept and locating it in the knowledge area. Using results from a largely automatic analysis of standardised (BSI/ISO) definitions, this paper demonstrates that technical definitions are rich in term content and that they contain a number of relations which can be used in the construction of a terminological control device such as a terminological thesaurus. Such a thesaurus will contain the keyconcepts of the domain, and can be used by technical authors to produce texts with greater consistency of terminology
    Type
    a
  12. Huang, M.-H.: Developing an ideal online thesaurus display format (1994) 0.00 
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    Abstract
    Describes a design for ideal online subject and author thesauri. The subject thesaurus is a graphic thesaurus with a semantic network, so the spread activation assumption can be applied. The hierarchical relationship is broken into 3 specific relations, so automated inheritance can be performed. The associated relationship is separated with several specific relationships, so spatial recognition can function well. This thesaurus will provide variety and complexity to deal with uncertainty and will be a user constructed, user enhanced hyperthesaurus that serves as an analogue of the human mind. The author thesaurus is designed to show all authors which are alphabetically adjacent to a given author as well as other authors whose subject area is close to that of the given author
    Type
    a
  13. Cote, C.: Creation d'un thesaurus bilingue en gerontologie et geriatrie : rapport d'etape (1997) 0.00 
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    Abstract
    The ageing of the world population has focused attention on both geriatrics and gerontology and the past few years have seen the emergence of a holistic approach to serving the needs of elderly people. This has resulted in a need to harmonize the terminology of both domains. Reports developments in the creation of a bilingual controlled vocabulary in gerontology and geriatrics, a project undertaken jointly by the Graduate School of Library and Information Studies at McGill University and the Centre hospitalier Côte-des-Neiges in Quebec focusing on: the definition and purpose of the thesaurus; methodology; the user; communication between the 2 participants; choice of software; and verification of the vocabulary
    Footnote
    Übers. des Titels: Creation of a bilingual thesaurus in gerontology and geriatrics: progress report
    Type
    a
  14. Hudon, M.: Multilingual thesaurus construction : integrating the views of different cultures in one gateway to knowledge and concepts (1997) 0.00 
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    Abstract
    Based on the premise that in a multilingual thesaurus all languages are equal, reviews the options and solutions offered by the guidelines to the developer of specialized thesauri. Introduces other problems of a sociocultural, and even of a truly political nature, which are a prominent features in the daily life of the thesaurus designer but with which the theory and the guidelines do not deal very well. Focuses in turn on semantic, managerial, and technological aspects of multilingual thesaurus construction, from the perspective of giving equal treatment to all languages involved
    Footnote
    Contribution to a special issue devoted to papers read at the 1996 Electronic Access to Fiction research seminar at Copenhagen, Denmark
    Type
    a
  15. Chen, H.; Ng, T.: ¬An algorithmic approach to concept exploration in a large knowledge network (automatic thesaurus consultation) : symbolic branch-and-bound search versus connectionist Hopfield Net Activation (1995) 0.00 
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    Abstract
    Presents a framework for knowledge discovery and concept exploration. In order to enhance the concept exploration capability of knowledge based systems and to alleviate the limitation of the manual browsing approach, develops 2 spreading activation based algorithms for concept exploration in large, heterogeneous networks of concepts (eg multiple thesauri). One algorithm, which is based on the symbolic AI paradigma, performs a conventional branch-and-bound search on a semantic net representation to identify other highly relevant concepts (a serial, optimal search process). The 2nd algorithm, which is absed on the neural network approach, executes the Hopfield net parallel relaxation and convergence process to identify 'convergent' concepts for some initial queries (a parallel, heuristic search process). Tests these 2 algorithms on a large text-based knowledge network of about 13.000 nodes (terms) and 80.000 directed links in the area of computing technologies
    Type
    a
  16. Harter, S.P.; Cheng, Y.-R.: Colinked descriptors : improving vocabulary selection for end-user searching (1996) 0.00 
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    Abstract
    This article introduces a new concept and technique for information retrieval called 'colinked descriptors'. Borrowed from an analogous idea in bibliometrics - cocited references - colinked descriptors provide a theory and method for identifying search terms that, by hypothesis, will be superior to those entered initially by a searcher. The theory suggests a means of moving automatically from 2 or more initial search terms, to other terms that should be superior in retrieval performance to the 2 original terms. A research project designed to test this colinked descriptor hypothesis is reported. The results suggest that the approach is effective, although methodological problems in testing the idea are reported. Algorithms to generate colinked descriptors can be incorporated easily into system interfaces, front-end or pre-search systems, or help software, in any database that employs a thesaurus. The potential use of colinked descriptors is a strong argument for building richer and more complex thesauri that reflect as many legitimate links among descriptors as possible
    Type
    a
  17. Fischer, D.H.; Möhr, W.; Rostek, L.: ¬A modular, object-oriented and generic approach for building terminology maintenance systems (1996) 0.00 
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    Abstract
    Five years ago, we raised the question: is there a data model which is general enough such that all existing thesauri can be represented by a specialization of this general model without loss of information? The answer was not given at that time, but we referred to the principle of abstraction, well supported in object-oriented data modelling. We gained the empirical basis for that process of abstraction by modelling existing thesauri and a terminological dictionary; an abstracting view was afterwards presented in a paper to the TKE'93 conference. The present paper reports on a third step of abstraction with its very concrete consequences, embodies in a software called TerminologyFramework(TFw)
    Type
    a
  18. Smith, D.A.: Use of a thesaurus in two-stage information retrieval of electronic records (1996) 0.00 
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    Type
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  19. Francu, V.: Building a multilingual thesaurus based on UDC (1996) 0.00 
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    Abstract
    Once the library has been through a process of transition from traditional library procedures to automated ones, natural language searching became a necessity for both indexers and searchers. Therefore, aside from the precoordinated classified catalogue we started to build a dictionary of terms in order to make postcoordinate search possible in keeping with the UDC notations assigned to each bibliographic record. After a while we came to the conclusion that the dictionary needed a control of its terms so that synonymous concepts and semantic ambuguities be avoided. The project presented in this paper shows how reality imposed the improvement of the quality of indexing and hence of the searching possibilities. Is also shows the reasons why we consider a multilingual thesaurus based on UDC an ideal indexing and searching device. The experiment applied on class 8 of UDC illustrates the way the UDC tables can be quite successfully used in building a thesaurus due to their qulities and how their limitations can be overcome by a thesaurus. An appendix to the paper contains a sample of the multilingual thesaurus given in both alphabetical and systematic layouts
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    a
  20. Fromme, A.: Strukturierung facettierter Thesauri : Probleme und Methoden, dargestellt an ausgewählten Beispielen (1991) 0.00 
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