-
Vakkari, P.; Järvelin, K.; Chang, Y.-W.: ¬The association of disciplinary background with the evolution of topics and methods in Library and Information Science research 1995-2015 (2023)
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- Date
- 22. 6.2023 18:15:06
- Source
- Journal of the Association for Information Science and Technology. 74(2023) no.7, S.811-827
-
Vakkari, P.; Chang, Y.-W.; Järvelin, K.: Disciplinary contributions to research topics and methodology in Library and Information Science : leading to fragmentation? (2022)
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- Source
- Journal of the Association for Information Science and Technology. 73(2022) no.12, S.1706-1722
-
Vakkari, P.: Task complexity, information types, search strategies and relevance : integrating studies on information retrieval and seeking (1999)
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- Pages
- S.35-54
- Source
- Exploring the contexts of information behaviour: Proceedings of the 2nd International Conference on Research in Information Needs, Seeking and Use in Different Contexts, Sheffield, UK, 1998. Ed. by D.K. Wilson u. D.K. Allen
-
Sihvonen, A.; Vakkari, P.: Subject knowledge improves interactive query expansion assisted by a thesaurus (2004)
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- Source
- Journal of documentation. 60(2004) no.6, S.673-690
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Pennanen, M.; Vakkari, P.: Students' conceptual structure, search process, and outcome while preparing a research proposal : a longitudinal case study (2003)
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- Abstract
- This article focuses an analysing students' information needs in terms of conceptual understanding of the topic they propose to study and its consequences for the search process and outcome. The research subjects were 22 undergraduates of psychology attending a seminar for preparing a research proposal for a small empirical study. They were asked to make searches in the PsycINFO database for their task in the beginning and end of the seminar. A pre- and postsearch 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 during the preparation of research proposals different features of the students' conceptual structure were connected to the search success. Students' ability to cover their conceptual construct by query terms was the major feature affecting search success during the whole process. In the beginning also the number of concepts and the proportion of subconcepts in the construct contributed indirectly via search tactics to retrieving partly useful references. Students' ability to extract new query terms from retrieved items improved search results.
- Date
- 19. 6.2003 17:22:33
- Source
- Journal of the American Society for Information Science and technology. 54(2003) no.8, S.759-770
-
Järvelin, K.; Vakkari, P.: LIS research across 50 years: content analysis of journal articles : offering an information-centric conception of memes (2022)
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- Abstract
- Purpose This paper analyses the research in Library and Information Science (LIS) and reports on (1) the status of LIS research in 2015 and (2) on the evolution of LIS research longitudinally from 1965 to 2015. Design/methodology/approach The study employs a quantitative intellectual content analysis of articles published in 30+ scholarly LIS journals, following the design by Tuomaala et al. (2014). In the content analysis, we classify articles along eight dimensions covering topical content and methodology. Findings The topical findings indicate that the earlier strong LIS emphasis on L&I services has declined notably, while scientific and professional communication has become the most popular topic. Information storage and retrieval has given up its earlier strong position towards the end of the years analyzed. Individuals are increasingly the units of observation. End-user's and developer's viewpoints have strengthened at the cost of intermediaries' viewpoint. LIS research is methodologically increasingly scattered since survey, scientometric methods, experiment, case studies and qualitative studies have all gained in popularity. Consequently, LIS may have become more versatile in the analysis of its research objects during the years analyzed. Originality/value Among quantitative intellectual content analyses of LIS research, the study is unique in its scope: length of analysis period (50 years), width (8 dimensions covering topical content and methodology) and depth (the annual batch of 30+ scholarly journals).
- Source
- Journal of documentation. 78(2022) no.7, S.65-88
-
Vakkari, P.; Pennanen, M.; Serola, S.: Changes of search terms and tactics while writing a research proposal : a longitudinal case study (2003)
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- 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.
- Source
- Information processing and management. 39(2003) no.3, S.445-463
-
Wu, I.-C.; Vakkari, P.: Effects of subject-oriented visualization tools on search by novices and intermediates (2018)
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- Date
- 9.12.2018 16:22:25
- Source
- Journal of the Association for Information Science and Technology. 69(2018) no.12, S.1428-1445
-
Järvelin, K.; Vakkari, P.: ¬The evolution of library and information science 1965-1985 : a content analysis of journal titles (1993)
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- Source
- Information processing and management. 29(1993) no.1, S.129-144
-
Vakkari, P.; Jones, S.; MacFarlane, A.; Sormunen, E.: Query exhaustivity, relevance feedback and search success in automatic and interactive query expansion (2004)
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- Source
- Journal of documentation. 60(2004) no.2, S.109-127
-
Vakkari, P.: Information seeking in context : a challenging metatheory (1997)
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- Pages
- S.451-464
-
Serola, S.; Vakkari, P.: ¬The anticipated and assessed contribution of information types in references retrieved for preparing a research proposal (2005)
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- Source
- Journal of the American Society for Information Science and Technology. 56(2005) no.4, S.373-381
-
Talja, S.; Vakkari, P.; Fry, J.; Wouters, P.: Impact of research cultures on the use of digital library resources (2007)
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- Source
- Journal of the American Society for Information Science and Technology. 58(2007) no.11, S.1674-1685
-
Vakkari, P.; Huuskonen, S.: Search effort degrades search output but improves task outcome (2012)
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- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.4, S.657-670
-
Vakkari, P.; Kuokkanen, M.: Theory growth in information science : applications of the theory of science to a theory of information seeking (1997)
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- Source
- Journal of documentation. 53(1997) no.5, S.497-519
-
Vakkari, P.; Sormunen, E.: ¬The influence of relevance levels an the effectiveness of interactive information retrieval (2004)
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- Journal of the American Society for Information Science and Technology. 55(2004) no.11, S.963-969
-
Vakkari, P.: Task-based information searching (2002)
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- Source
- Annual review of information science and technology. 37(2003), S.413-464
-
Vakkari, P.: ¬A theory of the task-based information retrieval process : a summary and generalisation of a longitudinal study (2001)
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Vakkari, P.: Perceived influence of the use of electronic information resources on scholarly work and publication productivity (2008)
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- Journal of the American Society for Information Science and Technology. 59(2008) no.4, S.602-612
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Eerola, J.; Vakkari, P.: How a general and a specific thesaurus cover expressions in patients' questions and physicians' answers (2008)
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