Literatur zur Informationserschließung

Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.

© 2015 W. Gödert, TH Köln, Institut für Informationswissenschaft / Powered by litecat, BIS Oldenburg (Stand: 28. April 2022)

Suchergebnisse

• 21
  McCray, A.T. ; Nelson, S.J.: ¬The representation of meaning in the UMLS.
  In: Methods of information in medicine. 34(1995) nos.1/2, S.193-201.
  
  Abstract: The Unified Medical Language System knowledge source provide detailed information about biomedical naming systems and databases. The Metathesaurus contains biomedical terminology from an increasing number of biomedical thesauri, and the Semantic Netowrk provides a structure that encompasses and unifies the thesauri that are included in the Metathesaurus. Addresses some fundamental principles underlying the design and development of the Metathesaurus and Semantic Network. Describes the formal properties of the semantic network. Considers the principle of semantic locality and how this is reflected in the UMLS knowledge sources. Discusses the issues involved in attempting to reuse knowledge and the potential for reuse of the UMLS knowledge sources
  
  Themenfeld: Konzeption und Anwendung des Prinzips Thesaurus
  Wissenschaftsfach: Medizin
  Objekt: UMLS
  
  
• 22
  Humphreys, B.L.: ¬The 1994 Unified Medical Language System Knowledge Sources.
  In: Health libraries review. 11(1994) no.3, S.200-203.
  
  Abstract: In 1986 the US National Library of Medicine (NLM) began the Unified Medical Language System (UMLS) project, a long term research and development effort designed to address 2 fundamental barriers to effective biomedical information retrieval: the sheer number of potentially relevant machine readble information sources and the variety of vocabularies and classifications used in these disparate sources. The UMLS strategy involves incremental development and wide deployment of a set of Knowledge Sources designed to assist systems developers in building systems that overcome the problems caused by the number and disparity of databases and vocabularies. Describes the 4 Knowledge Sources contained in the Jun 94 ed.: the Metathesaurus, the Semantic Network, the Information Source Map and the SPECIALIST Lexicon. The hope ist that these Knowledge Sources can reduce the level of effort required to produce more functional informatics application
  
  Objekt: UMLS
  
  
• 23
  McCray, A.T.: UMLS knowledge for biomedical language processing.
  In: Bulletin of the Medical Library Association. 81(1993) no.2, S.184-194.
  
  Wissenschaftsfach: Medizin
  Objekt: UMLS
  
  
• 24
  Squires, S.J.: Access to biomedical information : the Unified Medical Language System.
  In: Library trends. 42(1993) no.1, S.127-151.
  
  Abstract: The National Library of Medicine is engaged in a long term project to develop a Unified Medical Language System (UMLS) that will retrieve and integrate information from a variety of information resources. 2 UMLS components use fundamental aspects of controlled vocabulary structure and management. Their relationship to information retrieval has general interest for librarianship. Describes the UMLS project along with its initial deployment in retrieval environment
  
  Objekt: UMLS
  
  
• 25
  Richwine, P.W.: ¬A study of MeSH and UMLS for subject searching in an online catalog.
  In: Bulletin of the Medical Library Association. 81(1993) no.2, S.229-233.
  
  Abstract: The study assessed the effectiveness of MeSH terms for retrieving medical monographs in an online catalogue; and the potential of the Unified Medical Language System (UMLS) for improving the retrieval rate. Although MeSH terms alone retrieved over 60% of the relevant book titles, the capability to search under all the UMLS semantically related terms increased the recall rate significantly, particularly if the related terms included any more specific terms indented under the assigned term in the MeSH tree structure
  
  Wissenschaftsfach: Medizin
  Objekt: MeSH ; UMLS
  
  
• 26
  Schuyler, P.L.: ¬The UMLS metathesaurus : representing different views of biomedical concepts.
  In: Bulletin of the Medical Library Association. 81(1993) no.2, S.217-222.
  
  Abstract: Article included in a special section devoted to the Unified Medical Language System: current research and development. The UMLS metathesaurus is a compilation of names, relationships and associated information from a variety of biomedical naming systems representing different views of biomedical practice or research. The UMLS metathesaurus is not a standardized vocabulary but is a tool for maximizing the usefulness of existing vocabularies and it serves as knowledge source for developers of biomdeical information applications and as a powerful resource for biomedical information specialists
  
  Wissenschaftsfach: Medizin
  Objekt: UMLS
  
  
• 27
  Lindberg, D.A.B. ; Humphreys, B.L.: ¬The UMLS project : making the conceptual connection between users and the information they need.
  In: Bulletin of the Medical Library Association. 81(1993) no.2, S.170-177.
  
  Abstract: The goal of the Unified Medical Language System, developed by the National Library of Medicine, is to facilitate the development of conceptual connections between users and relevant databases and to guide users, through their search statements, to the most suitable database for their needs. The UMLS model involves a combination of 4 centrally developed Knowledge Sources (Metathesaurus; Semantic Network; and Information Sources Map), and a variety of smart interface programs that make use of these Knowledge Sources to help users to find computerized information. Current priorities for the UMLS project include developing applications that make use of the Knowledge Sources and using feedback from these applications to guide ongoing enhancement and expansion in the direction of the UMLS project in the development of the Knowledge Sources and in their experimental application
  
  Wissenschaftsfach: Medizin
  Objekt: UMLS
  
  
• 28
  Rindflesch, T.C. ; Aronson, A.R.: Semantic processing in information retrieval.
  In: http://skr.nlm.nih.gov/papers/references/semantic_ir.93.pdf.
  
  Abstract: Intuition suggests that one way to enhance the information retrieval process would be the use of phrases to characterize the contents of text. A number of researchers, however, have noted that phrases alone do not improve retrieval effectiveness. In this paper we briefly review the use of phrases in information retrieval and then suggest extensions to this paradigm using semantic information. We claim that semantic processing, which can be viewed as expressing relations between the concepts represented by phrases, will in fact enhance retrieval effectiveness. The availability of the UMLS® domain model, which we exploit extensively, significantly contributes to the feasibility of this processing.
  
  Themenfeld: Computerlinguistik ; Wissensrepräsentation
  Wissenschaftsfach: Medizin
  Objekt: UMLS
  
  
• 29
  Miller, P.L.: Prototyping an institutional IAIMS/UMLS information environment for a academic medical center.
  In: Bulletin of the Medical Library Association. 80(1992) no.3, S.281-287.
  
  Abstract: A prototype design is discussed which shows the link between the US Matioanl Library of Medicine Integrated Academic Information Management System (IAIMS) and the Unified Medical Language System (UMLS)
  
  Wissenschaftsfach: Medizin
  Objekt: IAIMS ; UMLS
  
  
• 30
  Nelson, S.J.: From meaning to term : semantic locality in the UMLS metathesaurus.
  In: Assessing the value of medical informatics: Proc. of the 15th Annual Symposium on Computer Applications in Medical Care, Washington, DC, Nov.1991. New York : McGraw-Hill, 1992. S.209-213.
  
  Themenfeld: Begriffstheorie
  Objekt: UMLS
  
  
• 31
  Yang, Y. ; Chute, C.G.A.: ¬A schematic analysis of the Unified Medical Language System.
  In: Assessing the value of medical informatics: Proc. of the 15th Annual Symposium on Computer Applications in Medical Care, Washington, DC, Nov. 1991. New York : McGraw-Hill, 1992. S.204-208.
  
  Objekt: UMLS
  
  
• 32
  Tuttle, M.S.: Adding your terms and relationships to the UMLS Metathesaurus.
  In: Assessing the value of medical informatics: Proc. of the 15th Annual Symposium on Computer Applications in Medical Care, Washington, DC, Nov.1991. New York : McGraw-Hill, 1991. S.219-223.
  
  Objekt: UMLS