-
Hancock-Beaulieu, M.; McKenzie, L.; Irving, A.: Evaluative protocols for searching behaviour in online library catalogues (1991)
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- Date
- 23. 1.1999 19:52:29
-
Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998)
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- Source
- Online. 22(1998) no.6, S.57-58
-
Pemberton, J.K.; Ojala, M.; Garman, N.: Head to head : searching the Web versus traditional services (1998)
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- Source
- Online. 22(1998) no.3, S.24-26,28
-
Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973)
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- Date
- 19. 3.1996 11:22:12
- Source
- Journal of documentation. 29(1973) no.3, S.251-257
-
Huffman, G.D.; Vital, D.A.; Bivins, R.G.: Generating indices with lexical association methods : term uniqueness (1990)
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- Abstract
- A software system has been developed which orders citations retrieved from an online database in terms of relevancy. The system resulted from an effort generated by NASA's Technology Utilization Program to create new advanced software tools to largely automate the process of determining relevancy of database citations retrieved to support large technology transfer studies. The ranking is based on the generation of an enriched vocabulary using lexical association methods, a user assessment of the vocabulary and a combination of the user assessment and the lexical metric. One of the key elements in relevancy ranking is the enriched vocabulary -the terms mst be both unique and descriptive. This paper examines term uniqueness. Six lexical association methods were employed to generate characteristic word indices. A limited subset of the terms - the highest 20,40,60 and 7,5% of the uniquess words - we compared and uniquess factors developed. Computational times were also measured. It was found that methods based on occurrences and signal produced virtually the same terms. The limited subset of terms producedby the exact and centroid discrimination value were also nearly identical. Unique terms sets were produced by teh occurrence, variance and discrimination value (centroid), An end-user evaluation showed that the generated terms were largely distinct and had values of word precision which were consistent with values of the search precision.
- Date
- 23.11.1995 11:29:46
-
King, D.W.: Blazing new trails : in celebration of an audacious career (2000)
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- Abstract
- I had the distinct pleasure of working with Pauline Atherton (Cochrane) during the 1960s, a period that can be considered the heyday of automated information system design and evaluation in the United States. I first met Pauline at the 1962 American Documentation Institute annual meeting in North Hollywood, Florida. My company, Westat Research Analysts, had recently been awarded a contract by the U.S. Patent Office to provide statistical support for the design of experiments with automated information retrieval systems. I was asked to attend the meeting to learn more about information retrieval systems and to begin informing others of U.S. Patent Office activities in this area. At one session, Pauline and I questioned a speaker about the research that he presented. Pauline's questions concerned the logic of their approach and mine, the statistical aspects. After the session, she came over to talk to me and we began a professional and personal friendship that continues to this day. During the 1960s, Pauline was involved in several important information-retrieval projects including a series of studies for the American Institute of Physics, a dissertation examining the relevance of retrieved documents, and development and evaluation of an online information-retrieval system. I had the opportunity to work with Pauline and her colleagues an four of those projects and will briefly describe her work in the 1960s.
- Date
- 22. 9.1997 19:16:05
-
Drabenstott, K.M.; Weller, M.S.: Improving personal-name searching in online catalogs (1996)
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- Abstract
- Reports results of a study to examine the performance of online catalogue searches involving personal names and to recommend improvements to the basic system approach to soliciting user queries and searching for them. The research questions addressed in the study wre: how online systems can chose searching approaches on their own that are likely to produce useful retrieval; how online systems solicit queries from users; and how users respond to an experimental online catalogue that prompts them for the different elements of their personal name queries. Improvements include: the implementation of a new design for online catalogue searching that features search trees; new methods for soliciting user queries bearing personal names; and enlisting the participation of online catalogue users in the evaluation of system prompts, instructions, and messages that request input from them
-
Chu, H.: Factors affecting relevance judgment : a report from TREC Legal track (2011)
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- Date
- 12. 7.2011 18:29:22
-
Logan, E.: Cognitive styles and online behaviour of novice searchers (1990)
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-
Hartley, D.: ¬A 'laboratory' method for the comparison of retrieval effectiveness in manual and online searching (1984)
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- Abstract
- The paper provides a brief review of a number of published studies of the comparative retrieval effectiveness of manual and online searching. A description of a 'laboratory' approach to the comparison of retrieval effectiveness of manual and online searching is presented. Results, which have been obtained, using this approach are presented. it is suggested that the methodology could be adopted easily elsewhere
- Source
- 7th International Online Information Meeting, London, 6.-8.12.1983
-
Barraclough, E.D.: Opportunities for testing with online systems (1981)
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-
Shenouda, W.: Online bibliographic searching : how end-users modify their search strategies (1990)
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- Abstract
- The study attempted to idendify how end-users modify their initial search strategies in the light of new information presented during their interaction with an online bibliographic information retrieval system in a real environment. This exploratory study was also conducted to determine the effectiveness of the changes, made by users during the online process, in retrieving relevant documents. Analysis of this data shows that all end-users modify their searches during the online process. Results indicate that certain changes were made more frequently than others. Changes affecting relevance and characteristics of end-users' online search behaviour were also identified
-
Drabenstott, K.M.; Weller, M.S.: ¬A comparative approach to system evaluation : delegating control of retrieval tests to an experimental online system (1996)
0.01
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- Abstract
- Describes the comparative approach to system evaluation used in this research project which delegated the administartion of an online retrieval test to an experimental online catalogue to produce data for evaluating the effectiveness of a new subject access design. Describes the methods enlisted to sort out problem test administration, e.g. to identify out-of-scope queries, incomplete system administration, and suspect post-search questionnaire responses. Covers how w the researchers handled problem search administrations and what actions they would use to reduce or eliminate the occurrence of such administrations in future online retrieval tests that delegate control of retrieval tests to online systems
-
Cooper, M.D.; Chen, H.-M.: Predicting the relevance of a library catalog search (2001)
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- Abstract
- Relevance has been a difficult concept to define, let alone measure. In this paper, a simple operational definition of relevance is proposed for a Web-based library catalog: whether or not during a search session the user saves, prints, mails, or downloads a citation. If one of those actions is performed, the session is considered relevant to the user. An analysis is presented illustrating the advantages and disadvantages of this definition. With this definition and good transaction logging, it is possible to ascertain the relevance of a session. This was done for 905,970 sessions conducted with the University of California's Melvyl online catalog. Next, a methodology was developed to try to predict the relevance of a session. A number of variables were defined that characterize a session, none of which used any demographic information about the user. The values of the variables were computed for the sessions. Principal components analysis was used to extract a new set of variables out of the original set. A stratified random sampling technique was used to form ten strata such that each new strata of 90,570 sessions contained the same proportion of relevant to nonrelevant sessions. Logistic regression was used to ascertain the regression coefficients for nine of the ten strata. Then, the coefficients were used to predict the relevance of the sessions in the missing strata. Overall, 17.85% of the sessions were determined to be relevant. The predicted number of relevant sessions for all ten strata was 11 %, a 6.85% difference. The authors believe that the methodology can be further refined and the prediction improved. This methodology could also have significant application in improving user searching and also in predicting electronic commerce buying decisions without the use of personal demographic data
- Date
- 29. 9.2001 17:26:02
-
Hofstede, M.: Literatuur over onderwerpen zoeken in de OPC (1994)
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- Source
- CRI bulletin. 29(1994), Sept., S.14-15
-
Barker, A.L.: Non-Boolean searching on commercial online systems : optimising use of Dialog TARGET and ESA/IRS QUESTQUORUM (1995)
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- Abstract
- Considers 2 non-Boolean searching systems available on commercial online systems. QUESTQUORUM, based on coordination level searching, was introduced by ESA/IRS in Dec. 85. TARGET, which employs partial match probabilistic retrieval was introduced by DIALOG in Dec 93. 6 subject searches were carried out on databases available on both Dialog and ESA/IRS to compare TARGET and QUESTQUORUM with Boolean searching. Outlines the main advantages of these tools, and their disadvantages. Suggests when their use may be preferable
- Source
- Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes
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Iivonen, M.: Factors lowering the consistency in online searching (1995)
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- Abstract
- Considers factors lowering both intersearcher and intrasearcher consistency in online searching. 32 searchers with different backgrounds first analyzed 12 search requests, and after 2 months 8 of the same search requests, and formulated query statements from them for a search. Intersearcher consistency was the results of more than one factor. There were more differences between searchers ion the selection of search terms than in the selection of search concepts. The most important factor lowering intrasearcher consistency was that the same searcher selected different search terms to describe the same search concepts on various occasions
- Source
- Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes
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Nicholas, D.: Are information professionals really better online searchers than end-users? : (and whose story do you believe?) (1995)
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- Abstract
- Examines the searching behaviour of Guardian journalists searching FT PROFILE online system. Using transactional log analysis compares the searching styles of journalists with those of Guardian librarians. In some respects end users conform to the picture that professionals have of them - they search with a very limited range of commands - but in other respects they confound that image - they are very quick and economical searchers. Their behaviour relates to their general information seeking behaviour, and their searching styles would be seen in this regard
- Source
- Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes
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Grunder, R.: Qualitätskriterien für Datenbanken : Grundsätzliche Überlegungen und Untersuchung ausgewählter Aspekte am Beispiel bibliographischer Online-Datenbanken (1995)
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-
Spink, A.; Greisdorf, H.: Users' partial relevance judgements during online searching (1997)
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- Abstract
- Reports results of research to examine users conducting their initial online search on a particular information problem. Findings from 3 separate studies of relevance judgements by 44 initial search users were examined, including 2 studies of 13 end users and a study of 18 user engaged in mediated online searches. Number of items was judged on the scale 'relevant', 'patially relevant' and 'not rlevant'. Results suggest that: a relationship exists between partially rlevant items retrieved anch changes in the users' information problem or question during an information seeking process; partial relevance judgements play an important role for users in the early stages of seeking information on a particular information problem; and 'highly' relevant items may or may not be the only items useful at the early stages of users' information seeking processes
- Source
- Online and CD-ROM review. 21(1997) no.5, S.271-280
