Search (32 results, page 1 of 2)

  • × theme_ss:"Verbale Doksprachen im Online-Retrieval"
  1. Milstead, J.L.: Thesauri in a full-text world (1998) 0.03 
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    Abstract
    Despite early claims to the contemporary, thesauri continue to find use as access tools for information in the full-text environment. Their mode of use is changing, but this change actually represents an expansion rather than a contrdiction of their utility. Thesauri and similar vocabulary tools can complement full-text access by aiding users in focusing their searches, by supplementing the linguistic analysis of the text search engine, and even by serving as one of the tools used by the linguistic engine for its analysis. While human indexing contunues to be used for many databases, the trend is to increase the use of machine aids for this purpose. All machine-aided indexing (MAI) systems rely on thesauri as the basis for term selection. In the 21st century, the balance of effort between human and machine will change at both input and output, but thesauri will continue to play an important role for the foreseeable future
    Date
    22. 9.1997 19:16:05
  2. Intelligent information systems: progress and prospects (1986) 0.02 
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    Content
    Enthält die Beiträge: SOMMERVILLE, I., M. WOOD: A software components catalogue; COELHO, H.: Library manager: a case study in knowledge engineering; DAVIES, R.: Cataloguing as a domain for an expert system; POLLITT, A.S.: A rule-base system as an intermediary for searching cancer therapy literature on MEDLINE; LEBOWITZ, M.: An experiment in intelligent information systems: RESEARCHER; VICKERY, A., H.M. BROOKS u. B.C. VICKERY: An expert system for referral: the PLEXUS project; RICH, E.: Users are individuals: individualizing user models; INGWERSEN, P.: Cognitive analysis and the role of the intermediary in information retrieval; SHAW, M.L.G. u. B.R. GAINES: A cognitive model for intelligent information systems; DAVIES, R.: Classification and ratiocination: a perennial quest
  3. Lambert, N.: Of thesauri and computers : reflections on the need for thesauri (1995) 0.01 
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    Source
    Searcher. 3(1995) no.8, S.18-22
  4. Hildreth, C.R.: Intelligent interfaces and retrieval methods for subject searching in bibliographic retrieval systems (1989) 0.01 
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  5. Devadason, F.J.; Kumbhar, M.R.: Language and indexing language : Nalimor and Gardin revised (1988) 0.01 
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    Abstract
    Studies the salient features of ordinary language as a means of designing languages for information storage and retrieval systems. Pays particular attention to the POPSI (Postulate-based Permuted Subject Indexing) language.
  6. Lopes, M.I.: Principles underlying subject heading languages : an international approach (1996) 0.01 
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    Abstract
    Discusses the problems in establishing commonly accepted principles for subject retrieval between different bibliographic systems. The Working Group on Principles Underlying Subject Heading Languages was established to devise general principles for any subject retrieval system and to review existing real systems in the light of such principles and compare them in order to evaluate the extent of their coverage and their application in current practices. Provides a background and history of the Working Group. Discusses the principles underlying subject headings and their purposes and the state of the work and major findings
  7. Blair, D.C.: Language and representation in information retrieval (1991) 0.01 
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    Abstract
    Information or Document Retrieval is the subject of this book. It is not an introductory book, although it is self-contained in the sense that it is not necessary to have a background in the theory or practice of Information Retrieval in order to understand its arguments. The book presents, as clearly as possible, one particular perspective on Information Retrieval, and attempts to say that certain aspects of the theory or practice of the management of documents are more important than others. The majority of Information Retrieval research has been aimed at the more experimentally tractable small-scale systems, and although much of that work has added greatly to our understanding of Information Retrieval it is becoming increasingly apparent that retrieval systems with large data bases of documents are a fundamentally different genre of systems than small-scale systems. If this is so, which is the thesis of this book, then we must now study large information retrieval systems with the same rigor and intensity that we once studied small-scale systems. Hegel observed that the quantitative growth of any system caused qualitative changes to take place in its structure and processes.
  8. Stone, A.T.: Up-ending Cutter's pyramid : the case for making subject references to broader terms (1996) 0.01 
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    Date
    22. 4.1997 20:43:23
  9. Mu, X.; Lu, K.; Ryu, H.: Explicitly integrating MeSH thesaurus help into health information retrieval systems : an empirical user study (2014) 0.01 
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    Abstract
    When consumers search for health information, a major obstacle is their unfamiliarity with the medical terminology. Even though medical thesauri such as the Medical Subject Headings (MeSH) and related tools (e.g., the MeSH Browser) were created to help consumers find medical term definitions, the lack of direct and explicit integration of these help tools into a health retrieval system prevented them from effectively achieving their objectives. To explore this issue, we conducted an empirical study with two systems: One is a simple interface system supporting query-based searching; the other is an augmented system with two new components supporting MeSH term searching and MeSH tree browsing. A total of 45 subjects were recruited to participate in the study. The results indicated that the augmented system is more effective than the simple system in terms of improving user-perceived topic familiarity and question-answer performance, even though we did not find users spend more time on the augmented system. The two new MeSH help components played a critical role in participants' health information retrieval and were found to allow them to develop new search strategies. The findings of the study enhanced our understanding of consumers' search behaviors and shed light on the design of future health information retrieval systems.
  10. Subject authorities in the online environment : papers from a conference program held in San Francisco, 29.6.1987 (1991) 0.01 
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    Footnote
    Rez. in: Canadian library journal 49(1992) S.166 (P. Nicholls): "Basically a collection of the proceedings of a program given at the ALA's 1987 annual conference, the original impetus for the session was to familarize bibliographic utilities, library systems staff, and integrated library system vendors with the recently-released machine-readable LCSH-mr so that they could "integrate this new tool into online bibliographic systems to provide the cataloging, thesaurus maintenance, file maintenance, and retrieval functions associated with subject authority work." These papers were writeen in 1986 and are all about LCSH on magnetic tape. Gads!
  11. Poynder, R.: Web research engines? (1996) 0.01 
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    Abstract
    Describes the shortcomings of search engines for the WWW comparing their current capabilities to those of the first generation CD-ROM products. Some allow phrase searching and most are improving their Boolean searching. Few allow truncation, wild cards or nested logic. They are stateless, losing previous search criteria. Unlike the indexing and classification systems for today's CD-ROMs, those for Web pages are random, unstructured and of variable quality. Considers that at best Web search engines can only offer free text searching. Discusses whether automatic data classification systems such as Infoseek Ultra can overcome the haphazard nature of the Web with neural network technology, and whether Boolean search techniques may be redundant when replaced by technology such as the Euroferret search engine. However, artificial intelligence is rarely successful on huge, varied databases. Relevance ranking and automatic query expansion still use the same simple inverted indexes. Most Web search engines do nothing more than word counting. Further complications arise with foreign languages
  12. Dean, R.J.: FAST: development of simplified headings for metadata (2004) 0.01 
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    Abstract
    The Library of Congress Subject Headings schema (LCSH) is the most commonly used and widely accepted subject vocabulary for general application. It is the de facto universal controlled vocabulary and has been a model for developing subject heading systems by many countries. However, LCSH's complex syntax and rules for constructing headings restrict its application by requiring highly skilled personnel and limit the effectiveness of automated authority control. Recent trends, driven to a large extent by the rapid growth of the Web, are forcing changes in bibliographic control systems to make them easier to use, understand, and apply, and subject headings are no exception. The purpose of adapting the LCSH with a simplified syntax to create FAST (Faceted Application of Subject Terminology) headings is to retain the very rich vocabulary of LCSH while making the schema easier to understand, control, apply, and use. The schema maintains compatibility with LCSH--any valid Library of Congress subject heading can be converted to FAST headings.
  13. Congreve, J.: Problems of subject access : automatic generation of printed indexes and online thesaural control (1986) 0.01 
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    Abstract
    A research project in progress at Middlesex Polytechnic is examining the problems of providing adequate subject access from MARC-based cataloguing systems. Various forms of printed index are being evaluated and an experimental OPAC is being designed. The PRECIS RIN file will be tested as a basis for online thesaural control and as a browsing facility
  14. Chan, L.M.: Subject access systems in the USA (1995) 0.01 
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  15. Keen, E.M.: Aspects of computer-based indexing languages (1991) 0.01 
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    Abstract
    Comments on the relative rarity of research articles on theoretical aspects of subject indexing in computerised retrieval systems and the predominance of articles on software packages and hardware. Concludes that controlled indexing still has a future but points to major differences from the past
  16. Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000) 0.01 
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    Date
    27. 5.2001 16:22:21
  17. Frommeyer, J.: Chronological terms and period subdivisions in LCSH, RAMEAU, and RSWK : development of an integrative model for time retrieval across various online catalogs (2004) 0.01 
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    Date
    10. 9.2000 17:38:22
  18. Leissing, U.; Rädler, K.; Hauer, M.: Query-Expansion durch Fachthesauri : Erfahrungsbericht zu dandelon.com, Vorarlberger Parlamentsinformationssystem und vorarlberg.at (2010) 0.01 
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    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
  19. Anderson, J.D.; Pérez-Carballo, J.: Library of Congress Subject Headings (LCSH) (2009) 0.01 
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    Date
    27. 8.2011 14:22:13
  20. Tudhope, D.; Binding, C.; Blocks, D.; Cuncliffe, D.: Representation and retrieval in faceted systems (2003) 0.01 
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    Abstract
    This paper discusses two inter-related themes: the retrieval potential of faceted thesauri and XML representations of fundamental facets. Initial findings are discussed from the ongoing 'FACET' project, in collaboration with the National Museum of Science and Industry. The work discussed seeks to take advantage of the structure afforded by faceted systems for multi-term queries and flexible matching, focusing in this paper an the Art and Architecture Thesaurus. A multi-term matching function yields ranked results with partial matches via semantic term expansion, based an a measure of distance over the semantic index space formed by thesaurus relationships. Our intention is to drive the system from general representations and a common query structure and interface. To this end, we are developing an XML representation based an work by the Classification Research Group an fundamental facets or categories. The XML representation maps categories to particular thesauri and hierarchies. The system interface, which is configured by the mapping, incorporates a thesaurus browser with navigation history together with a term search facility and drag and drop query builder.

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  • e 29
  • d 3

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