-
White, R.W.; Jose, J.M.; Ruthven, I.: ¬A task-oriented study on the influencing effects of query-biased summarisation in web searching (2003)
0.04
0.039479237 = product of:
0.078958474 = sum of:
0.078958474 = product of:
0.15791695 = sum of:
0.15791695 = weight(_text_:abstracts in 1081) [ClassicSimilarity], result of:
0.15791695 = score(doc=1081,freq=6.0), product of:
0.2890173 = queryWeight, product of:
5.7104354 = idf(docFreq=397, maxDocs=44218)
0.05061213 = queryNorm
0.54639274 = fieldWeight in 1081, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
5.7104354 = idf(docFreq=397, maxDocs=44218)
0.0390625 = fieldNorm(doc=1081)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- The aim of the work described in this paper is to evaluate the influencing effects of query-biased summaries in web searching. For this purpose, a summarisation system has been developed, and a summary tailored to the user's query is generated automatically for each document retrieved. The system aims to provide both a better means of assessing document relevance than titles or abstracts typical of many web search result lists. Through visiting each result page at retrieval-time, the system provides the user with an idea of the current page content and thus deals with the dynamic nature of the web. To examine the effectiveness of this approach, a task-oriented, comparative evaluation between four different web retrieval systems was performed; two that use query-biased summarisation, and two that use the standard ranked titles/abstracts approach. The results from the evaluation indicate that query-biased summarisation techniques appear to be more useful and effective in helping users gauge document relevance than the traditional ranked titles/abstracts approach. The same methodology was used to compare the effectiveness of two of the web's major search engines; AltaVista and Google.
-
Still, J.: ¬The anthroplogy of online search strategy formation : a study of four countires (1996)
0.03
0.03223466 = product of:
0.06446932 = sum of:
0.06446932 = product of:
0.12893865 = sum of:
0.12893865 = weight(_text_:abstracts in 4954) [ClassicSimilarity], result of:
0.12893865 = score(doc=4954,freq=4.0), product of:
0.2890173 = queryWeight, product of:
5.7104354 = idf(docFreq=397, maxDocs=44218)
0.05061213 = queryNorm
0.44612777 = fieldWeight in 4954, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.7104354 = idf(docFreq=397, maxDocs=44218)
0.0390625 = fieldNorm(doc=4954)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Discusses the results of a survey sent to online searchers in the United Kingdom, USA, Australia and Canada. The purpose of the study was to investigate the influence of national culture on information retrieval skills. The survey form provided a sample question and asked searchers to prepare a preliminary strategy for a search on the Sociological Abstracts online database. Cultural patterns to online searching were discerned. American searchers were found to depend on controlled vocabulary much more than British searchers. Australian searchers seemed to have created a search style of their own, while Canadian searchers blended the American and British patterns. In reviewing results of the searches, over half of the citations retrieved were retrieved by more than one search. Australian searchers were more likely to retrieve items that no other search retrieved, while Canadian searchers had the highest overlap rate. If the theory that citations retrieved by the most searches are the most relevant is correct, then the Canadian searchers prepare the best searches. The Canadian searchers also seemed to be the most international, as their search results overlapped with those from the other 3 countires more often than did searches from other countries. One question contained in the survey asked searchers to suggest related databases for their searches. PAIS and SSCI were the databases mentioned most often in all 4 countires. Nevertheless, cultural differences and ethnocriticism could be discerned in the results with searchers listing databases specifically relating to their own countries or regions: Australian PAIS and US Political Science Abstracts being 2 examples
-
Morse, P.M.: Search theory and browsing (1970)
0.03
0.027428979 = product of:
0.054857958 = sum of:
0.054857958 = product of:
0.109715916 = sum of:
0.109715916 = weight(_text_:22 in 1448) [ClassicSimilarity], result of:
0.109715916 = score(doc=1448,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.61904186 = fieldWeight in 1448, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=1448)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 5.2005 19:53:09
-
Boynton, J.: Identifying systematic reviews in MEDLINE : developing an objective approach to search strategy design (1998)
0.03
0.027352015 = product of:
0.05470403 = sum of:
0.05470403 = product of:
0.10940806 = sum of:
0.10940806 = weight(_text_:abstracts in 2660) [ClassicSimilarity], result of:
0.10940806 = score(doc=2660,freq=2.0), product of:
0.2890173 = queryWeight, product of:
5.7104354 = idf(docFreq=397, maxDocs=44218)
0.05061213 = queryNorm
0.37855196 = fieldWeight in 2660, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.7104354 = idf(docFreq=397, maxDocs=44218)
0.046875 = fieldNorm(doc=2660)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Systematic reviews are becoming increasingly important for health care professionals seeking to provide evidence based health care. In the past, systematic reviews have been difficult to identify among the mass of literature labelled 'reviews'. Reports results of a study to design search strategies based on a more objective approach to strategy construction. MEDLINE was chosen as the database and word frequencies in the titles, abstracts and subject keywords of a collection of systematic reviews of the effective health care interventions were analyzed to derive a highly sensitive search strategy. 'Sensitivity' was used in preference to the usual term 'recall' as one of the measures (in addition to the usual 'precision'). The proposed strategy was found to offer 98% sensitivity in retrieving systematic reviews, while retaining a low but acceptable level of precision (20%). Reports results using other strategies with other levels of sensitivity and precision. Concludes that it is possible to use frequency analysis to generate highly sensitive strategies when retrieving systematic reviews
-
Morse, P.M.: Browsing and search theory (1973)
0.02
0.024000356 = product of:
0.048000712 = sum of:
0.048000712 = product of:
0.096001424 = sum of:
0.096001424 = weight(_text_:22 in 3339) [ClassicSimilarity], result of:
0.096001424 = score(doc=3339,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.5416616 = fieldWeight in 3339, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=3339)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 5.2005 19:52:29
-
Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000)
0.02
0.024000356 = product of:
0.048000712 = sum of:
0.048000712 = product of:
0.096001424 = sum of:
0.096001424 = weight(_text_:22 in 3924) [ClassicSimilarity], result of:
0.096001424 = score(doc=3924,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.5416616 = fieldWeight in 3924, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=3924)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Library and information science research. 22(2000) no.4, S.371-382
-
Pejtersen, A.M.: Design of a classification scheme for fiction based on an analysis of actual user-librarian communication, and use of the scheme for control of librarians' search strategies (1980)
0.02
0.017143112 = product of:
0.034286223 = sum of:
0.034286223 = product of:
0.06857245 = sum of:
0.06857245 = weight(_text_:22 in 5835) [ClassicSimilarity], result of:
0.06857245 = score(doc=5835,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.38690117 = fieldWeight in 5835, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=5835)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 5. 8.2006 13:22:44
-
Hsieh-Yee, I.: Search tactics of Web users in searching for texts, graphics, known items and subjects : a search simulation study (1998)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 2404) [ClassicSimilarity], result of:
0.041143466 = score(doc=2404,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 2404, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2404)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 25.12.1998 19:22:31
-
Limberg, L.: Three conceptions of information seeking and use (1999)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 281) [ClassicSimilarity], result of:
0.041143466 = score(doc=281,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 281, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=281)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2002 9:53:10
-
Lin, S.-j.; Belkin, N.: Validation of a model of information seeking over multiple search sessions (2005)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 3450) [ClassicSimilarity], result of:
0.041143466 = score(doc=3450,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 3450, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3450)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 10. 4.2005 14:52:22
-
Koopmans, N.I.: What's your question? : The need for research information from the perspective of different user groups (2002)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 3612) [ClassicSimilarity], result of:
0.041143466 = score(doc=3612,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 3612, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3612)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 2. 7.2005 12:22:50
-
Crestani, F.; Du, H.: Written versus spoken queries : a qualitative and quantitative comparative analysis (2006)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 5047) [ClassicSimilarity], result of:
0.041143466 = score(doc=5047,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 5047, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5047)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 5. 6.2006 11:22:23
-
Xu, Y.: ¬The dynamics of interactive information retrieval behavior : part I: an activity theory perspective (2007)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 331) [ClassicSimilarity], result of:
0.041143466 = score(doc=331,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 331, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=331)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 27. 5.2007 13:55:22
-
Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : part II: empirical verification (2007)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 813) [ClassicSimilarity], result of:
0.041143466 = score(doc=813,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 813, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=813)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 23.12.2007 12:22:16
-
Saastamoinen, M.; Järvelin, K.: Search task features in work tasks of varying types and complexity (2017)
0.01
0.010285866 = product of:
0.020571733 = sum of:
0.020571733 = product of:
0.041143466 = sum of:
0.041143466 = weight(_text_:22 in 3589) [ClassicSimilarity], result of:
0.041143466 = score(doc=3589,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.23214069 = fieldWeight in 3589, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3589)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Information searching in practice seldom is an end in itself. In work, work task (WT) performance forms the context, which information searching should serve. Therefore, information retrieval (IR) systems development/evaluation should take the WT context into account. The present paper analyzes how WT features: task complexity and task types, affect information searching in authentic work: the types of information needs, search processes, and search media. We collected data on 22 information professionals in authentic work situations in three organization types: city administration, universities, and companies. The data comprise 286 WTs and 420 search tasks (STs). The data include transaction logs, video recordings, daily questionnaires, interviews. and observation. The data were analyzed quantitatively. Even if the participants used a range of search media, most STs were simple throughout the data, and up to 42% of WTs did not include searching. WT's effects on STs are not straightforward: different WT types react differently to WT complexity. Due to the simplicity of authentic searching, the WT/ST types in interactive IR experiments should be reconsidered.
-
Byström, K.: Information seekers in context : an analysis of the 'doer' in INSU studies (1999)
0.01
0.008571556 = product of:
0.017143112 = sum of:
0.017143112 = product of:
0.034286223 = sum of:
0.034286223 = weight(_text_:22 in 297) [ClassicSimilarity], result of:
0.034286223 = score(doc=297,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.19345059 = fieldWeight in 297, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=297)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2002 9:55:52
-
Vakkari, P.; Pennanen, M.; Serola, S.: Changes of search terms and tactics while writing a research proposal : a longitudinal case study (2003)
0.01
0.008571556 = product of:
0.017143112 = sum of:
0.017143112 = product of:
0.034286223 = sum of:
0.034286223 = weight(_text_:22 in 1073) [ClassicSimilarity], result of:
0.034286223 = score(doc=1073,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.19345059 = fieldWeight in 1073, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=1073)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- The study analyses how students' growing understanding of the topic and search experience were related to their choice of search tactics and terms while preparing a research proposal for a small empirical study. In addition to that, the findings of the study are used to test Vakkari's (2001) theory of task-based IR. The research subjects were 22 students of psychology attending a seminar for preparing the proposal. They made a search for their task in PsychINFO database at the beginning and end of the seminar. Data were collected in several ways. A pre- and post-search interview was conducted in both sessions. The students were asked to think aloud in the sessions. This was recorded as were the transaction logs. The results show that search experience was slightly related to the change of facets. Although the students' vocabulary of the topic grew generating an increased use of specific terms between the sessions, their use of search tactics and operators remained fairly constant. There was no correlation between the terms and tactics used and the total number of useful references found. By comparing these results with the findings of relevant earlier studies the conclusion was drawn that domain knowledge has an impact on searching assuming that users have a sufficient command of the system used. This implies that the tested theory of task-based IR is valid on condition that the searchers are experienced. It is suggested that the theory should be enriched by including search experience in its scope.
-
Mansourian, Y.: Contextual elements and conceptual components of information visibility on the web (2008)
0.01
0.008571556 = product of:
0.017143112 = sum of:
0.017143112 = product of:
0.034286223 = sum of:
0.034286223 = weight(_text_:22 in 2603) [ClassicSimilarity], result of:
0.034286223 = score(doc=2603,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.19345059 = fieldWeight in 2603, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=2603)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 1. 1.2009 10:22:40
-
Aloteibi, S.; Sanderson, M.: Analyzing geographic query reformulation : an exploratory study (2014)
0.01
0.008571556 = product of:
0.017143112 = sum of:
0.017143112 = product of:
0.034286223 = sum of:
0.034286223 = weight(_text_:22 in 1177) [ClassicSimilarity], result of:
0.034286223 = score(doc=1177,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.19345059 = fieldWeight in 1177, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=1177)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 26. 1.2014 18:48:22
-
Monchaux, S.; Amadieu, F.; Chevalier, A.; Mariné, C.: Query strategies during information searching : effects of prior domain knowledge and complexity of the information problems to be solved (2015)
0.01
0.008571556 = product of:
0.017143112 = sum of:
0.017143112 = product of:
0.034286223 = sum of:
0.034286223 = weight(_text_:22 in 2680) [ClassicSimilarity], result of:
0.034286223 = score(doc=2680,freq=2.0), product of:
0.17723505 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05061213 = queryNorm
0.19345059 = fieldWeight in 2680, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=2680)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 25. 1.2016 18:46:22
