-
Poynder, R.: Web research engines? (1996)
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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
- Source
- Information world review. 1996, no.120, S.47-48
- Theme
- Verbale Doksprachen im Online-Retrieval
Klassifikationssysteme im Online-Retrieval
Semantisches Umfeld in Indexierung u. Retrieval
-
Bodoff, D.; Kambil, A.: Partial coordination : II. A preliminary evaluation and failure analysis (1998)
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- Abstract
- Partial coordination is a new method for cataloging documents for subject access. It is especially designed to enhance the precision of document searches in online environments. This article reports a preliminary evaluation of partial coordination that shows promising results compared with full-text retrieval. We also report the difficulties in empirically evaluating the effectiveness of automatic full-text retrieval in contrast to mixed methods such as partial coordination which combine human cataloging with computerized retrieval. Based on our study, we propose research in this area will substantially benefit from a common framework for failure analysis and a common data set. This will allow information retrieval researchers adapting 'library style'cataloging to large electronic document collections, as well as those developing automated or mixed methods, to directly compare their proposals for indexing and retrieval. This article concludes by suggesting guidelines for constructing such as testbed
- Source
- Journal of the American Society for Information Science. 49(1998) no.14, S.1270-1282
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Gilchrist, A.: ¬The thesaurus in retrieval (1971)
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- LCSH
- Information retrieval
- RSWK
- Schlagwortnormdatei / Information Retrieval
- Subject
- Schlagwortnormdatei / Information Retrieval
Information retrieval
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Hjoerland, B.; Kyllesbech Nielsen, L.: Subject access points in electronic retrieval (2001)
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- Source
- Annual review of information science and technology. 35(2001), S.249-298
- Theme
- Klassifikationssysteme im Online-Retrieval
Verbale Doksprachen im Online-Retrieval
-
Schabas, A.H.: ¬A comparative evaluation of the retrieval effectiveness of titles, Library of Congress Subject Headings and PRECIS strings for computer searching of UK MARC data (1979)
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- Theme
- Verbale Doksprachen im Online-Retrieval
-
Hauffe, H.: Sacherschließung bibliographischer Datenbanken und ihre Nutzung im Information Retrieval : Vortrag anläßlich der Tagung 'Automatisierte Sacherschließung - Status und Trends, Schloß Hofen, Lochau bei Bregenz, 17.4.-20.4.1989.
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- Theme
- Klassifikationssysteme im Online-Retrieval
Verbale Doksprachen im Online-Retrieval
-
Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000)
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- Abstract
- Library of Congress Subject Headings (LCSH), a system originally designed as a tool for subject access to the Library's own collection in the late nineteenth century, has become, in the course of the last century, the main subject retrieval tool in library catalogs throughout the United States and in many other countries. It is one of the largest non-specialized controlled vocabularies in the world. As LCSH enters a new century, it faces an information environment that has undergone vast changes from what had prevailed when LCSH began, or, indeed, from its state in the early days of the online age. In order to continue its mission and to be useful in spheres outside library catalogs as well, LCSH must adapt to the multifarious environment. One possible approach is to adopt a series of scalable and flexible syntax and application rules to meet the needs of different user communities
- Date
- 27. 5.2001 16:22:21
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Cochrane, P.A.: Indexing and searching thesauri, the Janus or Proteus of information retrieval (1992)
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- Theme
- Verbale Doksprachen im Online-Retrieval
-
Shiri, A.A.; Revie, C.; Chowdhury, G.: Thesaurus-enhanced search interfaces (2002)
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- Source
- Journal of information science. 28(2002) no.2, S.111-122
- Theme
- Verbale Doksprachen im Online-Retrieval
Semantisches Umfeld in Indexierung u. Retrieval
-
Anderson, J.D.: Indexing and classification : file organization and display for information retrieval (1989)
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- Theme
- Klassifikationssysteme im Online-Retrieval
Verbale Doksprachen im Online-Retrieval
-
Informatics 10: prospects for intelligent retrieval : Proc. of a conference jointly sponsored by Aslib, the Aslib Informatics Group and the Information Retrieval Specialist Group of the British Computer Society, King's College, Cambridge, 21.-23.3.1989 (1990)
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- Theme
- Verbale Doksprachen im Online-Retrieval
-
Hildreth, C.R.: Intelligent interfaces and retrieval methods for subject searching in bibliographic retrieval systems (1989)
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- Series
- Advances in library information technology; 2
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Blair, D.C.: Language and representation in information retrieval (1991)
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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.
- COMPASS
- Information retrieval
- LCSH
- Information Retrieval
- RSWK
- Information Retrieval
- Subject
- Information retrieval
Information Retrieval
Information Retrieval
- Theme
- Verbale Doksprachen im Online-Retrieval
-
DeHart, F.E.; Glazier, J.: Computer searching on PRECIS : an exploration of measuring comparative retrieval effectiveness (1984)
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- Abstract
- Designing research on the retrieval effectiveness of computer searches on PRECIS compared with retrieval effectiveness of searches on other types of subject analysis used in computer-based information sources is a complex process. This paper explores the complexity of measuring comparative retrieval effectiveness through a comparison of the subject analysis provided by the PRECIS system for fifty articles with the subject analysis provided for the same articles by three computer-based information sources: ERIC/CIJE, LLBA/Online and PsycINFO. Objectives are: (1) to discover factors that should be taken into account when designing this type of research; and (2) to identify extraneous variables that work against internal validity in research design .
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Bates, M.J.: Subject access in online catalogs: a design model (1986)
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- Source
- Journal of the American Society for Information Science. 37(1986), S.357-367
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Piternick, A.B.: Vocabularies for online subject searching (1990)
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- Source
- Encyclopedia of library and information science. Vol.45, [=Suppl.10]
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Zeng, L.: Achieving compatibility of indexing languages in online access environment (1992)
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- Source
- Encyclopedia of library and information science. Vol.50, [=Suppl.13]
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Anderson, J.D.; Pérez-Carballo, J.: Library of Congress Subject Headings (LCSH) (2009)
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- Date
- 27. 8.2011 14:22:13
- Source
- Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Milstead, J.L.: Thesauri in a full-text world (1998)
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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
- Imprint
- Urbana-Champaign, IL : Illinois University at Urbana-Champaign, Graduate School of Library and Information Science
- Source
- Visualizing subject access for 21st century information resources: Papers presented at the 1997 Clinic on Library Applications of Data Processing, 2-4 Mar 1997, Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign. Ed.: P.A. Cochrane et al
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Devadason, F.J.; Kumbhar, M.R.: Language and indexing language : Nalimor and Gardin revised (1988)
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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.
- Theme
- Verbale Doksprachen im Online-Retrieval
