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

• 1
  Katzmayr, M. ; Putz, M. ; Fessler, G.: Evaluationsmethoden zur Bewertung von Aggregatordatenbanken am Beispiel von ProQuest ABI/Inform und EBSCO Business Source Premier.
  In: Information - Wissenschaft und Praxis. 56(2005) H.3, S.175-180.
  
  Abstract: An der Universitätsbibliothek der Wirtschaftsuniversität Wien wurden im Rahmen einer Lizenzierungsentscheidung die Datenbanken ABI/Inform Proquest und EBSCO Business Source Premier verglichen. Neben den Ergebnissen wird ein Konzept vorgestellt, wie in der Praxis ein Vergleich zwischen Aggregatordatenbanken bezogen auf den eigenen Bibliotheksbestand durchgeführt werden kann. Ausgehend von einer Beschreibung der Besonderheiten von Aggregatordatenbanken (z.B. Embargos) werden sowohl quantitative (Vergleich der Titellisten, Volltextverfügbarkeit) als auch qualitative (peer-reviewed, Rankings, Indexierung und Abstracting) inhaltliche Kriterien für die Evaluation angeführt. Neben der inhaltlichen Bewertung wurden die Usability der Datenbankoberfläche (v a. Suchmöglichkeiten), das Nutzungsverhalten sowie die Bedürfnisse der Benutzer untersucht. Vor allem bei quantitativen Kriterien schneidet EBSCO Business Source Premier besser ab als ABI/Inform Pro0uest jedoch kann - die budgetären Möglichkeiten vorausgesetzt - aufgrund der mitunter geringen inhaltlichen Überschneidung für eine Lizenzierung beider Datenbanken argumentiert werden.
  
  Themenfeld: Informationsmittel
  Wissenschaftsfach: Wirtschaftswissenschaften
  Objekt: ABI/Inform Proquest ; EBSCO Business Source Premier
  Land/Ort: A ; Wien
  
  
• 2
  Greenberg, J.: Automatic query expansion via lexical-semantic relationships.
  In: Journal of the American Society for Information Science and technology. 52(2001) no.5, S.402-415.
  
  Abstract: Structured thesauri encode equivalent, hierarchical, and associative relationships and have been developed as indexing/retrieval tools. Despite the fact that these tools provide a rich semantic network of vocabulary terms, they are seldom employed for automatic query expansion (QE) activities. This article reports on an experiment that examined whether thesaurus terms, related to query in a specified semantic way (as synonyms and partial-synonyms (SYNs), narrower terms (NTs), related terms (RTs), and broader terms (BTs)), could be identified as having a more positive impact on retrieval effectiveness when added to a query through automatic QE. The research found that automatic QE via SYNs and NTs increased relative recall with a decline in precision that was not statistically significant, and that automatic QE via RTs and BTs increased relative recall with a decline in precision that was statistically significant. Recallbased and a precision-based ranking orders for automatic QE via semantically encoded thesauri terminology were identified. Mapping results found between enduser query terms and the ProQuest Controlled Vocabulary (1997) (the thesaurus used in this study) are reported, and future research foci related to the investigation are discussed
  
  Themenfeld: Semantisches Umfeld in Indexierung u. Retrieval
  Objekt: ProQuest
  
  
• 3
  Jascó, P.: CD-ROM databases with full-page images.
  In: Computers in libraries. 18(1998) no.2, S.33-35.
  
  Abstract: Full text databases often cannot substitute for the original print document because they include only the plain text, but not the figures, charts, tables, and screen shots that are useful and sometimes essential for understanding the article. Discusses 3 recently released page-image databases on CD-ROM. UMI's ProQuest Medical Library includes searchable bibliographic records and abstracts for about 120 medical and nursing journals as well as the facsimile of the articles with users able to view the articles in full-page format, just as they first appeared in print: ADONIS Electronic Journal Subscription Services CD offers 400 biomedical journals in CD-ROM page-image format; and Optipat's OptiDisk Custom CD-ROMs provide a customizable service for US patents where customers can order US patents in text only, or image only, or in text and image format with or without a searchable index by submitting the patent numbers required
  
  Objekt: ADONIS ; ProQuest ; OptiDisk
  
  
• 4
  UMI introduces new ProQuest databases.
  In: Advanced technology libraries. 27(1998) no.6, S.5.
  
  Abstract: UMI have announced the availability of ProQuest Computing and ProQuest Telecommunications, offering full text coverage of periodicals in computing and telecommunications respectively. UMI have also made available 3 H.W. Wilson databases through their ProQuest online service: Social Sciences PlusText; General Science Plus Text; and Education Plus Text
  
  Themenfeld: Informationsmittel
  Wissenschaftsfach: Sozialwissenschaften ; Naturwissenschaften ; Erziehungswissenschaft
  Objekt: UMI ; ProQuest ; Social Sciences Plus Text ; General Science Plus Text ; Education Plus Text
  
  
• 5
  Duval, B.K. ; Main, L.: Microcomputer applications in the library : Part 1A: ProQuest Direct.
  In: Library software review. 17(1998) no.2, S.90-119.
  
  Abstract: ProQuest Direct offers dozens of databases and thousands of primary sources to suit the needs of a wide range of libraries and types of user. Explains how to find the coverage via the Web and lists some of the databases available in CD-ROM format. Gives information regarding subscriptions to ProQuest Direct and reproduces screens demonstrating search and ordering procedures
  
  Objekt: ProQuest
  
  
• 6
  Mandelbaum, J.: ProQuest full-text newspapers : an online newsstand at your library.
  In: Database. 21(1998) no.3, S.42-43.
  
  Abstract: ProQuest Full-Text Newspapers from UMI enables subcribing libraries to make local, regional and national newspapers available from a custom database. It is accessible on the WWW. Describes searching, browsing publications, and viewing results. Recommends the quality, and depth of the database and its interface, but points out difficulties in searching selected publications rather than the entire database and that the 200 document limit may be too retrictive for some users
  
  Anmerkung: Vgl.: http://proquest.umi.com/apdweb
  
  Themenfeld: Internet ; Informationsmittel
  Behandelte Form: Zeitungen
  Objekt: ProQuest
  
  
• 7
  Buntrock, R.E.: UMI's applied science and technology plus.
  In: Information today. 14(1997) no.6, S.35-36.
  
  Abstract: Abstracts and indexes have been migrating from print to digital for over 2 decades but original full text records, both text and image, are available in a variety of media. Producers of fully electronic journals are planning to index their content rather than rely on full text browsing, even with more powerful search engines. Reviews UMI's ProQuest on CD-ROM, a combination of HW Wilson Applied Science and Technology Abstracts (AST) and full text images of the original articles. The product is currently for DOS with a Windows version planned. Discusses searching and problems
  
  Themenfeld: Informationsmittel
  Objekt: ProQuest ; AST
  
  
• 8
  Combs, J.: ProQuest Direct : remote research and electronic document delivery from UMI.
  In: Library software review. 16(1997) no.1, S.50-63.
  
  Abstract: Discusses the current state of the WWW as a useful tool for researchers in relation to the virtual library. Products such as IAC, EBSCO and UMI offer access using a client-server model and Internet data communications to remote full text databases of sufficient size and sscope to be useful to serious researchers. Reviews the client software for Windows to ProQuest Direct from UMI. UMI has a content base of over 17.000 periodicals, 7.000 newspapers, and 1,4 million dissertations. On 17 Oct 96 UMI introduced access to its servers through the WWW, and an update to its ProQuest Direct Windows client. Remote access includes Z39.50 and LYNX browsers. Covers operating environment; user interface; searching; retrieving documents; and documentation and help
  
  Anmerkung: Vgl.: http://www.umi.com/proquest
  
  Behandelte Form: Dissertationen
  Objekt: ProQuest
  
  
• 9
  Basch, R.: ProQuest Direct : document delivery [with images] to the desktop.
  In: Online. 20(1996) no.2, S.38-44.
  
  Abstract: ProQuest Direct from UMI is a desktop based, standalone, pay as you go document delivery service. Details how the system works, both text only and image formats are available. Describes details its pricing. Compares ProQuest Direct to online database services, and discusses its potential
  
  Objekt: ProQuest
  
  
• 10
  O'Leary, M.: ProQuest direct delivers UMI goods.
  In: Information today. 13(1996) no.4, S.22-24.
  
  Abstract: Provides a background to UMI, formerly known as University Microflims International. Describes ProQuest Direct, a new online service from UMI that merges indexing and abstracting. ASCII and image full text, wide subject coverage, and multiple document delivery options, into a uniform document search and delivery system. ProQuest covers nearly 4.000 titles and is a composite of UMI's electronic database including ABI/INFORM, Periodical Abstracts; Newspaper Abstracts, Business Dateline, Accounting and Tax Database, Banking Information Source, and Pharmaceitical News Index. Describes search methods and document delivery
  
  Objekt: ProQuest
  
  
• 11
  UMI's ProQuest Direct now available on World Wide Web.
  In: Advanced technology libraries. 25(1996) no.10, S.1-2.
  
  Abstract: Reports the availability of UMI's ProQuest Direct online information retrieval service on the WWW, following agreement between UMI and Netscape Communications Corporation to enable users to access ProQuest Direct using a web browser
  
  Objekt: ProQuest
  
  
• 12
  Valas, G.: Comparison of some widespread CD-ROM information retrieval software packages.
  In: Online and CD-ROM review. 18(1994) no.4, S.211-227.
  
  Abstract: Reports the results of a study, conducted at the National Technical Information Centre and Library (OMIKK), Hungary, to compare 5 popular proprietary CD-ROM searching software packages: OPTIWARE; BRS/Search; ProQuest; SPIRS; and Dialog OnDisc Manager. Software evaluation was based on analysis of a range of CD-ROM bibliographic databases (with the exception of BRS/Search for which the library held no bibliographic databases) and focused on: response times for various activities (logging on, searching, retrieval, display); other performance factors; direct searching features (Boolean operators, proximity operators, arithmetic relations, truncation); index browsing; search strategy handling; display possibilities; output possibilities; and ergonomic and user friendliness factors. No general conclusions are drawn and users are left to draw their own conclusions
  
  Themenfeld: Bibliographische Software
  Objekt: SPIRS ; OPTIWARE ; BRS/SEARCH ; ProQuest ; Dialog OnDisc
  
  
• 13
  Rosen, L.: ProQuest Searchware 4.0 : keeping the best of the old while adding something new.
  In: Information today. 10(1993) no.3, S.16-17.
  
  Abstract: Reviews ProQuset Searchware 4.0 for an IBM PC introduced by University Microfilms Inc. (UMI). Searchware 4.0 is now part of UMI's ProQuest databases on CD-ROM. UMI's full text newspapers will be using Searchware by mid 1993. Describes guided help, progress meters and title listings
  
  Objekt: ProQuest Searchware 4.0
  
  
• 14
  
  
  
  Objekt: UMI ProQuest -> ProQuest