-
Veenema, F.: To index or not to index (1996)
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- Abstract
- Describes an experiment comparing the performance of automatic full-text indexing software for personal computers with the human intellectual assignment of indexing terms in each document in a collection. Considers the times required to index the document, to retrieve documents satisfying 5 typical foreseen information needs, and the recall and precision ratios of searching. The software used is QuickFinder facility in WordPerfect 6.1 for Windows
- Source
- Canadian journal of information and library science. 21(1996) no.2, S.1-22
- Type
- a
-
Leininger, K.: Interindexer consistency in PsychINFO (2000)
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- Abstract
- Reports results of a study to examine interindexer consistency (the degree to which indexers, when assigning terms to a chosen record, will choose the same terms to reflect that record) in the PsycINFO database using 60 records that were inadvertently processed twice between 1996 and 1998. Five aspects of interindexer consistency were analysed. Two methods were used to calculate interindexer consistency: one posited by Hooper (1965) and the other by Rollin (1981). Aspects analysed were: checktag consistency (66.24% using Hooper's calculation and 77.17% using Rollin's); major-to-all term consistency (49.31% and 62.59% respectively); overall indexing consistency (49.02% and 63.32%); classification code consistency (44.17% and 45.00%); and major-to-major term consistency (43.24% and 56.09%). The average consistency across all categories was 50.4% using Hooper's method and 60.83% using Rollin's. Although comparison with previous studies is difficult due to methodological variations in the overall study of indexing consistency and the specific characteristics of the database, results generally support previous findings when trends and similar studies are analysed.
- Date
- 9. 2.1997 18:44:22
- Source
- Journal of librarianship and information science. 32(2000) no.1, S.4-8
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- a
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Taniguchi, S.: Recording evidence in bibliographic records and descriptive metadata (2005)
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- Date
- 18. 6.2005 13:16:22
- Source
- Journal of the American Society for Information Science and Technology. 56(2005) no.8, S.872-882
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- a
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White, H.; Willis, C.; Greenberg, J.: HIVEing : the effect of a semantic web technology on inter-indexer consistency (2014)
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- Abstract
- Purpose - The purpose of this paper is to examine the effect of the Helping Interdisciplinary Vocabulary Engineering (HIVE) system on the inter-indexer consistency of information professionals when assigning keywords to a scientific abstract. This study examined first, the inter-indexer consistency of potential HIVE users; second, the impact HIVE had on consistency; and third, challenges associated with using HIVE. Design/methodology/approach - A within-subjects quasi-experimental research design was used for this study. Data were collected using a task-scenario based questionnaire. Analysis was performed on consistency results using Hooper's and Rolling's inter-indexer consistency measures. A series of t-tests was used to judge the significance between consistency measure results. Findings - Results suggest that HIVE improves inter-indexing consistency. Working with HIVE increased consistency rates by 22 percent (Rolling's) and 25 percent (Hooper's) when selecting relevant terms from all vocabularies. A statistically significant difference exists between the assignment of free-text keywords and machine-aided keywords. Issues with homographs, disambiguation, vocabulary choice, and document structure were all identified as potential challenges. Research limitations/implications - Research limitations for this study can be found in the small number of vocabularies used for the study. Future research will include implementing HIVE into the Dryad Repository and studying its application in a repository system. Originality/value - This paper showcases several features used in HIVE system. By using traditional consistency measures to evaluate a semantic web technology, this paper emphasizes the link between traditional indexing and next generation machine-aided indexing (MAI) tools.
- Type
- a
-
Booth, A.: How consistent is MEDLINE indexing? (1990)
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- Abstract
- A known-item search for abstracts to previously retrieved references revealed that 2 documents from the same annual volume had been indexed twice. Working from the premise that the whole volume may have been double-indexed, a search strategy was devised that limited the journal code to the year in question. 57 references were retrieved, comprising 28 pairs of duplicates plus a citation for the whole volume. Author, title, source and descriptors were requested off-line and the citations were paired with their duplicates. The 4 categories of descriptors-major descriptors, minor descriptors, subheadings and check-tags-were compared for depth and consistency of indexing and lessons that might be learnt from the study are discussed.
- Source
- Health libraries review. 7(1990) no.1, S.22-26
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- a
-
Neshat, N.; Horri, A.: ¬A study of subject indexing consistency between the National Library of Iran and Humanities Libraries in the area of Iranian studies (2006)
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- Date
- 4. 1.2007 10:22:26
- Type
- a
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Subrahmanyam, B.: Library of Congress Classification numbers : issues of consistency and their implications for union catalogs (2006)
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- Abstract
- This study examined Library of Congress Classification (LCC)-based class numbers assigned to a representative sample of 200 titles in 52 American library systems to determine the level of consistency within and across those systems. The results showed that under the condition that a library system has a title, the probability of that title having the same LCC-based class number across library systems is greater than 85 percent. An examination of 121 titles displaying variations in class numbers among library systems showed certain titles (for example, multi-foci titles, titles in series, bibliographies, and fiction) lend themselves to alternate class numbers. Others were assigned variant numbers either due to latitude in the schedules or for reasons that cannot be pinpointed. With increasing dependence on copy cataloging, the size of such variations may continue to decrease. As the preferred class number with its alternates represents a title more fully than just the preferred class number, this paper argues for continued use of alternates by library systems and for finding a method to link alternate class numbers to preferred class numbers for enriched subject access through local and union catalogs.
- Date
- 10. 9.2000 17:38:22
- Type
- a
-
Cleverdon, C.W.: Evaluation tests of information retrieval systems (1970)
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- a
-
Azubuike, A.A.; Umoh, J.S.: Computerized information storage and retrieval systems (1988)
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- a
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Zunde, P.; Dexter, M.E.: Factors affecting indexing performance (1969)
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- Source
- Cooperating information societies: Proceedings of the 32nd Annual Meeting of the American Society for Information Science, San Francisco, CA, 1.-4.10.1969. Ed.: J.B. North
- Type
- a
-
Hersh, W.R.; Hickam, D.H.: ¬A comparison of two methods for indexing and retrieval from a full-text medical database (1992)
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- Abstract
- Reports results of a study of 2 information retrieval systems on a 2.000 document full text medical database. The first system, SAPHIRE, features concept based automatic indexing and statistical retrieval techniques, while the second system, SWORD, features traditional word based Boolean techniques, 16 medical students at Oregon Health Sciences Univ. each performed 10 searches and their results, recorded in terms of recall and precision, showed nearly equal performance for both systems. SAPHIRE was also compared with a version of SWORD modified to use automatic indexing and ranked retrieval. Using batch input of queries, the latter method performed slightly better
- Imprint
- Medford, NJ : Learned Information Inc.
- Source
- Proceedings of the 55th Annual Meeting of the American Society for Information Science, Pittsburgh, 26.-29.10.92. Ed.: D. Shaw
- Type
- a
-
Krovetz, R.; Croft, W.B.: Lexical ambiguity and information retrieval (1992)
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- Abstract
- Reports on an analysis of lexical ambiguity in information retrieval text collections and on experiments to determine the utility of word meanings for separating relevant from nonrelevant documents. Results show that there is considerable ambiguity even in a specialised database. Word senses provide a significant separation between relevant and nonrelevant documents, but several factors contribute to determining whether disambiguation will make an improvement in performance such as: resolving lexical ambiguity was found to have little impact on retrieval effectiveness for documents that have many words in common with the query. Discusses other uses of word sense disambiguation in an information retrieval context
- Source
- ACM transactions on information systems. 10(1992) no.2, S.115-141
- Type
- a
-
David, C.; Giroux, L.; Bertrand-Gastaldy, S.; Lanteigne, D.: Indexing as problem solving : a cognitive approach to consistency (1995)
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- Abstract
- Indexers differ in their judgement as to which terms reflect adequately the content of a document. Studies of interindexers' consistency identified several factors associated with low consistency, but failed to provide a comprehensive model of this phenomenon. Our research applies theories and methods from cognitive psychology to the study of indexing behavior. From a theoretical standpoint, indexing is considered as a problem solving situation. To access to the cognitive processes of indexers, 3 kinds of verbal reports are used. We will present results of an experiment in which 4 experienced indexers indexed the same documents. It will be shown that the 3 kinds of verbal reports provide complementary data on strategic behavior, and that it is of prime importance to consider the indexing task as an ill-defined problem, where the solution is partly defined by the indexer him(her)self
- Imprint
- Alberta : Alberta University, School of Library and Information Studies
- Source
- Connectedness: information, systems, people, organizations. Proceedings of CAIS/ACSI 95, the proceedings of the 23rd Annual Conference of the Canadian Association for Information Science. Ed. by Hope A. Olson and Denis B. Ward
- Type
- a
-
David, C.; Giroux, L.; Bertrand-Gastaldy, S.; Lanteigne, D.: Indexing as problem solving : a cognitive approach to consistency (1995)
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- Imprint
- Medford, NJ : Learned Information
- Source
- Forging new partnerships in information: converging technologies. Proceedings of the 58th Annual Meeting of the American Society for Information Science, ASIS'95, Chicago, IL, 9-12 October 1995. Ed.: T. Kinney
- Type
- a
-
Harter, S.P.; Cheng, Y.-R.: Colinked descriptors : improving vocabulary selection for end-user searching (1996)
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- Abstract
- This article introduces a new concept and technique for information retrieval called 'colinked descriptors'. Borrowed from an analogous idea in bibliometrics - cocited references - colinked descriptors provide a theory and method for identifying search terms that, by hypothesis, will be superior to those entered initially by a searcher. The theory suggests a means of moving automatically from 2 or more initial search terms, to other terms that should be superior in retrieval performance to the 2 original terms. A research project designed to test this colinked descriptor hypothesis is reported. The results suggest that the approach is effective, although methodological problems in testing the idea are reported. Algorithms to generate colinked descriptors can be incorporated easily into system interfaces, front-end or pre-search systems, or help software, in any database that employs a thesaurus. The potential use of colinked descriptors is a strong argument for building richer and more complex thesauri that reflect as many legitimate links among descriptors as possible
- Source
- Journal of the American Society for Information Science. 47(1996) no.4, S.311-325
- Type
- a
-
Rowley, J.: ¬The controlled versus natural indexing languages debate revisited : a perspective on information retrieval practice and research (1994)
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- Abstract
- This article revisits the debate concerning controlled and natural indexing languages, as used in searching the databases of the online hosts, in-house information retrieval systems, online public access catalogues and databases stored on CD-ROM. The debate was first formulated in the early days of information retrieval more than a century ago but, despite significant advance in technology, remains unresolved. The article divides the history of the debate into four eras. Era one was characterised by the introduction of controlled vocabulary. Era two focused on comparisons between different indexing languages in order to assess which was best. Era three saw a number of case studies of limited generalisability and a general recognition that the best search performance can be achieved by the parallel use of the two types of indexing languages. The emphasis in Era four has been on the development of end-user-based systems, including online public access catalogues and databases on CD-ROM. Recent developments in the use of expert systems techniques to support the representation of meaning may lead to systems which offer significant support to the user in end-user searching. In the meantime, however, information retrieval in practice involves a mixture of natural and controlled indexing languages used to search a wide variety of different kinds of databases
- Source
- Journal of information science. 20(1994) no.2, S.108-119
- Type
- a
-
Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967)
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- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.
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- a
-
Saracevic, T.: Measuring the degree of agreement between searchers (1984)
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- Source
- Challenges to an information society : proceedings of the 47th ASIS annual Meeting, Philadelphia, Pennsylvania, October 21-25, 1984. Ed.: Barbara Flood
- Type
- a
-
Broxis, P.F.: ASSIA social science information service (1989)
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- Abstract
- ASSIA (Applied Social Science Index and Abtracts) started in 1987 as a bimonthly indexing and abstracting service in the society field, aimed at practitioners as well as sociologists. Considers the following aspects of the service: arrangement of ASSIA; journal coverage; indexing approach; services for subscribers; and who are the users?
- Type
- a
-
Edwards, S.: Indexing practices at the National Agricultural Library (1993)
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- Abstract
- This article discusses indexing practices at the National Agriculture Library. Indexers at NAL scan over 2,200 incoming journals for input into its bibliographic database, AGRICOLA. The National Agriculture Library's coverage extends worldwide covering a broad range of agriculture subjects. Access to AGRICOLA occurs in several ways: onsite search, commercial vendors, Dialog Information Services, Inc. and BRS Information Technologies. The National Agricultural Library uses CAB THESAURUS to describe the subject content of articles in AGRICOLA.
- Type
- a
