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  1. Humphrey, S.M.; Névéol, A.; Browne, A.; Gobeil, J.; Ruch, P.; Darmoni, S.J.: Comparing a rule-based versus statistical system for automatic categorization of MEDLINE documents according to biomedical specialty (2009) 0.46 
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    Abstract
    Automatic document categorization is an important research problem in Information Science and Natural Language Processing. Many applications, including, Word Sense Disambiguation and Information Retrieval in large collections, can benefit from such categorization. This paper focuses on automatic categorization of documents from the biomedical literature into broad discipline-based categories. Two different systems are described and contrasted: CISMeF, which uses rules based on human indexing of the documents by the Medical Subject Headings (MeSH) controlled vocabulary in order to assign metaterms (MTs), and Journal Descriptor Indexing (JDI), based on human categorization of about 4,000 journals and statistical associations between journal descriptors (JDs) and textwords in the documents. We evaluate and compare the performance of these systems against a gold standard of humanly assigned categories for 100 MEDLINE documents, using six measures selected from trec_eval. The results show that for five of the measures performance is comparable, and for one measure JDI is superior. We conclude that these results favor JDI, given the significantly greater intellectual overhead involved in human indexing and maintaining a rule base for mapping MeSH terms to MTs. We also note a JDI method that associates JDs with MeSH indexing rather than textwords, and it may be worthwhile to investigate whether this JDI method (statistical) and CISMeF (rule-based) might be combined and then evaluated showing they are complementary to one another.
  2. Dailey, J.E.: Subject headings (1980) 0.21 
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    Abstract
    Enthält Geschichte der Library of Congress Subject Headings und Sears' list
    Object
    Sears List of Subject Headings
  3. Humphrey, S.M.; Rogers, W.J.; Kilicoglu, H.; Demner-Fushman, D.; Rindflesch, T.C.: Word sense disambiguation by selecting the best semantic type based on journal descriptor indexing : preliminary experiment (2006) 0.20 
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    Abstract
    An experiment was performed at the National Library of Medicine® (NLM®) in word sense disambiguation (WSD) using the Journal Descriptor Indexing (JDI) methodology. The motivation is the need to solve the ambiguity problem confronting NLM's MetaMap system, which maps free text to terms corresponding to concepts in NLM's Unified Medical Language System® (UMLS®) Metathesaurus®. If the text maps to more than one Metathesaurus concept at the same high confidence score, MetaMap has no way of knowing which concept is the correct mapping. We describe the JDI methodology, which is ultimately based an statistical associations between words in a training set of MEDLINE® citations and a small set of journal descriptors (assigned by humans to journals per se) assumed to be inherited by the citations. JDI is the basis for selecting the best meaning that is correlated to UMLS semantic types (STs) assigned to ambiguous concepts in the Metathesaurus. For example, the ambiguity transport has two meanings: "Biological Transport" assigned the ST Cell Function and "Patient transport" assigned the ST Health Care Activity. A JDI-based methodology can analyze text containing transport and determine which ST receives a higher score for that text, which then returns the associated meaning, presumed to apply to the ambiguity itself. We then present an experiment in which a baseline disambiguation method was compared to four versions of JDI in disambiguating 45 ambiguous strings from NLM's WSD Test Collection. Overall average precision for the highest-scoring JDI version was 0.7873 compared to 0.2492 for the baseline method, and average precision for individual ambiguities was greater than 0.90 for 23 of them (51%), greater than 0.85 for 24 (53%), and greater than 0.65 for 35 (79%). On the basis of these results, we hope to improve performance of JDI and test its use in applications.
  4. Library of Congress Subject Headings (1994) 0.15 
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    Content
    Enthält 206.300 subject headings; Zuwachs des letzten Jahres: 8.000; alphabetische Liste aller früheren, nun nicht mehr gültigen headings (Earlier forms); umfangreiche Einleitung
    Footnote
    Vgl. auch Cataloging service bulletin. No.46(1989) S.65-66; ab 12th ed. 1989 jährliche Erscheinungsweise. - Neben Papierausgabe Mikrofiche und CD-ROM Ausgabe (CDMARC Subjects, $475,-; vgl. Demo-Diskette) mit jeweils vierteljährlicher Ergänzung. - Erste Ausgabe: 1911 'List of Subject Headings for use in dictionary catalogs'. Chicago: ALA 1911. - Vgl. zur Geschichte: Dailey, J.E. Subject headings in ELIS
  5. Townley, H.M.; Gee, R.G.: Thesaurus-making : grow your own wordstock (1980) 0.15 
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    LCSH
    Subject headings
    Subject
    Subject headings
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  6. Sears' list of subject headings (2018) 0.15 
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    Abstract
    The system is available both in print and online versions. Names a few new subject headings in areas like science, technology, engineering and medicine (STEM). In this edition, there are a total of 1,600 new headings making it a total of 12,000+ preferred headings meant for subject access in small and medium sized libraries. This unprecedented increase of about 1,600 headings is mostly due the complete incorporation of the Canadian Sears last published independently in 2006. Also critically examines inconsistencies in a few headings. Concludes to say the new edition in resplendent, hard binding maintains its stellar reputation of a handy list of general subject headings both for applications and a teaching resource.
    Footnote
    Introduction und Rez. in: Knowledge Organization 45(2018) no.8, S.712-714. u.d.T. "Satija, M. P. 2018: "The 22nd edition (2018) of the Sears List of Subject Headings: A brief introduction." (DOI:10.5771/0943-7444-2018-8-712).
    Object
    Sears List of Subject Headings
  7. Gilchrist, A.: ¬The thesaurus in retrieval (1971) 0.14 
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    Classification
    AN 94200 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Grundlagen, Theorie / Thesauruskunde
    LCSH
    Subject headings
    RVK
    AN 94200 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Grundlagen, Theorie / Thesauruskunde
    Subject
    Subject headings
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  8. Aitchison, J.; Gilchrist, A.: Thesaurus construction : a practical manual (1987) 0.13 
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    LCSH
    Subject headings
    Subject
    Subject headings
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  9. Satija, M.P.: ¬The sixteenth edition (1987) of the Sears' List of Subject Headings : some salient features in historical perspective of its Platinum Jubilee Year (1998) (1998) 0.13 
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    Footnote
    Enthält eine Liste der 16 Auflagen der Sears' List mit den jeweiligen Herausgeberinnen / Herausgebern und Neuerungen
    Object
    Sears List of Subject Headings
  10. Lancaster, F.W.: Vocabulary control for information retrieval (1986) 0.11 
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    Classification
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    LCSH
    Subject headings
    RVK
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    Subject
    Subject headings
  11. Vasiljev, A.: Thesaurus project of the Delft University of Technology Library : Allgemeiner Thesaurus für Bibliotheken (1982) 0.11 
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    Abstract
    Discussion of the results and consequences of the automation project named thesaurus/concordance project, carried out at the DUT Library. The aim of the project was, by making the subject headings and their corresponding classification codes machine readable, to produce periodically cumulative lists, classifies lists, lists per subject fields, alphabetical lists of inverted subheadings and geographical names with their corresponding main headings and notations
    Source
    Numerische und nicht-numerische Klassifikation zwischen Theorie und Praxis. Proc. der 5. Fachtagung der Gesellschaft für Klassifikation, Hofgeismar, 7.-10.4.1981. Hrsg.: Peter Ihm u.a
  12. Stone, A.T.: ¬The LCSH century : a brief history of the Library of Congress Subject Headings, and introduction to the centennial essays (2000) 0.10 
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    Abstract
    The history of the Library of Congress Subject Headings is traced, from its beginnings with the implementation of a dictionary catalog at the Library of Congress in 1898 to the present day. The author describes the most significant changes which have occurred in LCSH policies and practices during the 100-year period. Events noted near the end of the century indicate an increased willingness on the part of' the Library of Congress to involve the larger library community in the creation or revision of subject headings and other decision-making regarding the LCSH system. Finally, the author provides a summary of the other contributions to this collection of essays, a collection which celebrates the "centennial" of the world's most popular library subject heading language
    Content
    Mit einer Publikationsgeschichte der LCSH (vgl. Tabellen) und dazu gehörenden Publikationen
    Source
    The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T.Stone
  13. Heiner-Freiling, M.: Survey on subject heading languages used in national libraries and bibliographies (2000) 0.10 
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    Abstract
    Surveys conducted during the last four years under the auspices of the International Federation of Library Associations and Organizations (IFLA) reveal that the Library of Congress Subject Headings is heavily used in national libraries outside of the United States, particularly in English-speaking countries. Many other countries report using a translation or adaptation of LCSH as their principal subject heading language. Magda Heiner-Freiling presents an analysis of the IFLA data, which also includes information on the classification schemes used by the libraries and whether or not the libraries have produced a manual on the creation and application of subject headings. The paper concludes with an Appendix showing the complete data from the 88 national libraries that respond to the surveys
    Content
    Mit einer tabellarischen Übersicht der eingesetzten Systeme und Regeln
    Object
    Sears List of Subject Headings
    Source
    The LCSH century: one hundred years with the Library of Congress Subject Headings system. Ed.: A.T.Stone
  14. Aitchison, J.; Gilchrist, A.; Bawden, D.: Thesaurus construction and use : a practical manual (1997) 0.10 
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    LCSH
    Subject headings / Terminology
    Subject
    Subject headings / Terminology
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  15. Olderr, S.: Olderr's fiction subject headings : a supplement and guide to the LC thesaurus (1991) 0.10 
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    Content
    Enthält in einem Appendix A: 'Guidelines on subject access to individual works of fiction, drama, etc.' des American Library Association Subject Analysis Committee; und in einem Appendix B die Verfahrensweise der Library of Congress bei der Zuteilung von Library of Congress Subject Headings zur Schönen Literatur
  16. Aitchison, J.; Gilchrist, A.; Bawden, D.: Thesaurus construction and use : a practical manual (2000) 0.10 
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    LCSH
    Subject headings / Terminology
    Subject
    Subject headings / Terminology
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  17. Coates, E.J.: Subject catalogues : headings and structure (1960) 0.10 
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    Classification
    AN 75000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Allgemeines
    RVK
    AN 75000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Sacherschließung in Bibliotheken / Allgemeines
  18. Russell, M.A.: Inconsistencies in subject headings in young adult resources (1991) 0.10 
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    Abstract
    Compares language-related subject headings used in 'Sears list of subject headings' and 'Library of Congress Subject Headings (LCSH)'. Comments on the inconsistent application of subdivisions for the Spanish and French laguages and literature. Describes the results of a survey of student knowledge of subject headings
    Object
    Sears List of Subject Headings
  19. Jahns, Y.; Karg, H.: Translingual retrieval : Moving between vocabularies - MACS 2010 (2011) 0.10 
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    Abstract
    Within the multilingual framework of the CrissCross project, MACS (Multilingual Access to Subjects) has continued its work. MACS has developed a prototype of mappings between three vocabularies: the LCSH (Library of Congress Subject Headings), RAMEAU (Répertoire d'autorité-matière encyclopédique et alphabétique unifié) and the SWD (Schlagwortnormdatei). A database with a Link Management System (LMI), which allows for an easy linking between English, French and German subject headings, was created. The database started working with headings from the disciplines sports and theatre, but by now headings from all other fields of knowledge have been included as well. In 2008-2010, equivalencies between English and French headings which had been produced by the Bibliothèque nationale de France have been completed with the most important German SWD topical terms. Thus, more than 50.000 trilingual links are now available and can be used in different retrieval scenarios. It is planned to use them in The European Library (TEL) in order to support multilingual searches over all European National Library collections. The article informs about the project workflow, methodology of mapping and future applications of MACS links.
    Series
    Bibliotheca Academica - Reihe Informations- und Bibliothekswissenschaften; Bd. 1
  20. Studwell, W.E.: LC's head in the sand, or, why the Subject Cataloging Manual is not enough (1993) 0.09 
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    Footnote
    Bezugnahme auf: 'Subject cataloging manual: subject headings. 4th ed. Washington 1991' und Vorläufer

Authors

Years

Languages

  • d 32
  • m 4
  • es 1
  • nl 1
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Types

  • a 1402
  • m 380
  • el 127
  • s 115
  • i 25
  • n 19
  • b 16
  • r 14
  • x 12
  • p 4
  • ? 3
  • d 3
  • h 3
  • l 2
  • v 1
  • More… Less…

Themes

Subjects

Classifications