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  1. 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
  2. Lewandowski, D.; Drechsler, J.; Mach, S. von: Deriving query intents from web search engine queries (2012) 0.18 
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    Abstract
    The purpose of this article is to test the reliability of query intents derived from queries, either by the user who entered the query or by another juror. We report the findings of three studies. First, we conducted a large-scale classification study (~50,000 queries) using a crowdsourcing approach. Next, we used clickthrough data from a search engine log and validated the judgments given by the jurors from the crowdsourcing study. Finally, we conducted an online survey on a commercial search engine's portal. Because we used the same queries for all three studies, we also were able to compare the results and the effectiveness of the different approaches. We found that neither the crowdsourcing approach, using jurors who classified queries originating from other users, nor the questionnaire approach, using searchers who were asked about their own query that they just entered into a Web search engine, led to satisfying results. This leads us to conclude that there was little understanding of the classification tasks, even though both groups of jurors were given detailed instructions. Although we used manual classification, our research also has important implications for automatic classification. We must question the success of approaches using automatic classification and comparing its performance to a baseline from human jurors.
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. Lewandowski, D.; Spree, U.: Ranking of Wikipedia articles in search engines revisited : fair ranking for reasonable quality? (2011) 0.13 
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    Abstract
    This paper aims to review the fiercely discussed question of whether the ranking of Wikipedia articles in search engines is justified by the quality of the articles. After an overview of current research on information quality in Wikipedia, a summary of the extended discussion on the quality of encyclopedic entries in general is given. On this basis, a heuristic method for evaluating Wikipedia entries is developed and applied to Wikipedia articles that scored highly in a search engine retrieval effectiveness test and compared with the relevance judgment of jurors. In all search engines tested, Wikipedia results are unanimously judged better by the jurors than other results on the corresponding results position. Relevance judgments often roughly correspond with the results from the heuristic evaluation. Cases in which high relevance judgments are not in accordance with the comparatively low score from the heuristic evaluation are interpreted as an indicator of a high degree of trust in Wikipedia. One of the systemic shortcomings of Wikipedia lies in its necessarily incoherent user model. A further tuning of the suggested criteria catalog, for instance, the different weighing of the supplied criteria, could serve as a starting point for a user model differentiated evaluation of Wikipedia articles. Approved methods of quality evaluation of reference works are applied to Wikipedia articles and integrated with the question of search engine evaluation.
  10. Lancaster, F.W.: Vocabulary control for information retrieval (1986) 0.12 
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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. Lewandowski, D.: Evaluating the retrieval effectiveness of web search engines using a representative query sample (2015) 0.11 
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    Abstract
    Search engine retrieval effectiveness studies are usually small scale, using only limited query samples. Furthermore, queries are selected by the researchers. We address these issues by taking a random representative sample of 1,000 informational and 1,000 navigational queries from a major German search engine and comparing Google's and Bing's results based on this sample. Jurors were found through crowdsourcing, and data were collected using specialized software, the Relevance Assessment Tool (RAT). We found that although Google outperforms Bing in both query types, the difference in the performance for informational queries was rather low. However, for navigational queries, Google found the correct answer in 95.3% of cases, whereas Bing only found the correct answer 76.6% of the time. We conclude that search engine performance on navigational queries is of great importance, because users in this case can clearly identify queries that have returned correct results. So, performance on this query type may contribute to explaining user satisfaction with search engines.
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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

Authors

Years

Languages

  • d 32
  • m 4
  • es 1
  • nl 1
  • More… Less…

Types

  • a 1404
  • 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