Search (39 results, page 1 of 2)

  • × language_ss:"e"
  • × theme_ss:"Suchtaktik"
  • × year_i:[2000 TO 2010}
  1. Koopmans, N.I.: What's your question? : The need for research information from the perspective of different user groups (2002) 0.06 
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    Abstract
    In this paper results of a field study into the need for research information of different user groups are presented: scientists, policy makers and policy researchers, industry and media. Main questions of semi-structured interviews were: what kind of research information users need, what kind of research information resources are used and which information resources are missing at the moment. User groups are missing for a diversity of reasons the overview of research, experts and institutes in the different scientific fields. Especially for the accessibility and transparency of the scientific world these overviews are reported to be needed. Neither Google nor any of the research institutes or policy research organisations are able to present surveys for different science fields at the moment. Giving users the possibility to search, browse and navigate through accessible and more specialised layers of research information might give answers to different user groups simultaneously.
    Date
    2. 7.2005 12:22:50
  2. Jung, J.J.: Contextualized query sampling to discover semantic resource descriptions on the web (2009) 0.04 
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    Abstract
    Resource description extracted by query-sampling method can be applied to determine which database sources a certain query should be firstly sent to. In this paper, we propose a contextualized query-sampling method to extract the resources which are most relevant to up-to-date context. Practically, the proposed approach is adopted to personal crawler systems (the so-called focused crawlers), which can support the corresponding user's web navigation tasks in real-time. By taking into account the user context (e.g., intentions or interests), the crawler can build the queries to evaluate candidate information sources. As a result, we can discover semantic associations (i) between user context and the sources, and (ii) between all pairs of the sources. These associations are applied to rank the sources, and transform the queries for the other sources. For evaluating the performance of contextualized query sampling on 53 information sources, we compared the ranking lists recommended by the proposed method with user feedbacks (i.e., ideal ranks), and also computed the precision of discovered subsumptions as semantic associations between the sources.
    Source
    Information processing and management. 45(2009) no.2, S.280-287
  3. Vakkari, P.; Pennanen, M.; Serola, S.: Changes of search terms and tactics while writing a research proposal : a longitudinal case study (2003) 0.02 
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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
  4. Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000) 0.02 
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    Source
    Library and information science research. 22(2000) no.4, S.371-382
  5. Becker, N.J.: Google in perspective: : understanding and enhancing student search skills (2003) 0.02 
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    Abstract
    This paper desctibes a study of undergraduate student search behavlour, examines the results through the lens of various disciplines, and provides now insights that will increase our understanding and facilitate the development of mom effetive instructional programmes Perspectives and research results drawn from multiple disciplines are used to explore the role of mental modele, reference groups and habits, and IntelIectual development in the search behaviour demonstrated by the undergraduate students. During interviews conducted as part of the study, many students were able to articulate the importance of source evaluation and describe electronically-appropriate methods for assessing the authority and reliability of Weh based information resources. In practice, however, these students frequently abandoned source evaluation altogether and, following the path of Ieast resistance, relied exclusively on basic Google searching, This approach both compromiscd the quality of their search results and contributed to frustration with the research process. This may not be extraordinarily unusual behaviour, but it is cause for considerable concern among Information literacy programme planners and Instructors. Discussion of the study results and related research is followed by pragmatic suggestions for modifylng ineffective search behaviour through emhanced instructional programmes
  6. Chen, S.Y.; Magoulas, G.D.; Dimakopoulos, D.: ¬A flexible interface design for Web directories to accommodate different cognitive styles (2005) 0.02 
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    Abstract
    Search engines are very popular tools for collecting information from distributed resources. They provide not only search facilities, but they also offer directories for users to browse content divided into groups. In this paper, we've adopted an individual differences approach to explore user's attitudes towards various interface features provided by existing Web directories. Among a variety of individual differences, cognitive style is a particularly important characteristic that influences the effectiveness of information seeking. Empirical results indicate that users' cognitive styles influence their reactions to the organization of subject categories, presentation of the results, and screen layout. We developed a set of design guidelines an the basis of these results, and propose a flexible interface that adopts these guidelines to accommodate the preferences of different cognitive style groups.
  7. White, M.D.; Iivonen, M.: Questions as a factor in Web search strategy (2001) 0.01 
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    Source
    Information processing and management. 37(2001) no.5, S.721-740
  8. Mandala, R.; Tokunaga, T.; Tanaka, H.: Query expansion using heterogeneous thesauri (2000) 0.01 
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    Source
    Information processing and management. 36(2000) no.3, S.361-378
  9. Kuhlthau, C.C.; Tama, S.L.: Information search process of lawyers : a call for 'just for me' information services (2001) 0.01 
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    Abstract
    The study reported in this paper is part of a programme of ongoing research based on the model of the Information Search Process (ISP) developed in a series of prior studies by Kuhlthau. This study sought to gain a better understanding of the variety of tasks that involve lawyers as a particular group of information workers, how they use information to accomplish their work, and the role mediators play in their process of information seeking and use. Findings revealed that these lawyers frequently were involved in complex tasks that required a constructive process of interpreting, learning and creating. To accomplish these complex tasks, they preferred printed texts over computer databases primarily because computer databases required well-specified requests and did not offer an option for examining a wide range of information at one time. These lawyers called for an active potential role for mediators in 'just for me' services. 'Just for me' services would encompass designing systems to provide a wider range of access more compatible with the process of construction, applying and developing principles of classification that would offer a more uniform system for organising and accessing files, and providing direction in filtering the overwhelming amount of information available on electronic resources.
  10. Pera, M.S.; Lund, W.; Ng, Y.-K.: ¬A sophisticated library search strategy using folksonomies and similarity matching (2009) 0.01 
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    Abstract
    Libraries, private and public, offer valuable resources to library patrons. As of today, the only way to locate information archived exclusively in libraries is through their catalogs. Library patrons, however, often find it difficult to formulate a proper query, which requires using specific keywords assigned to different fields of desired library catalog records, to obtain relevant results. These improperly formulated queries often yield irrelevant results or no results at all. This negative experience in dealing with existing library systems turns library patrons away from directly querying library catalogs; instead, they rely on Web search engines to perform their searches first, and upon obtaining the initial information (e.g., titles, subject headings, or authors) on the desired library materials, they query library catalogs. This searching strategy is an evidence of failure of today's library systems. In solving this problem, we propose an enhanced library system, which allows partial, similarity matching of (a) tags defined by ordinary users at a folksonomy site that describe the content of books and (b) unrestricted keywords specified by an ordinary library patron in a query to search for relevant library catalog records. The proposed library system allows patrons posting a query Q using commonly used words and ranks the retrieved results according to their degrees of resemblance with Q while maintaining the query processing time comparable with that achieved by current library search engines.
  11. Kim, K.-S.: Effects of emotion control and task on Web searching behavior (2008) 0.01 
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    Source
    Information processing and management. 44(2008) no.1, S.373-385
  12. Wolfram, D.: Search characteristics in different types of Web-based IR environments : are they the same? (2008) 0.01 
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    Source
    Information processing and management. 44(2008) no.3, S.1279-1292
  13. Lin, S.-j.; Belkin, N.: Validation of a model of information seeking over multiple search sessions (2005) 0.01 
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    Date
    10. 4.2005 14:52:22
  14. Crestani, F.; Du, H.: Written versus spoken queries : a qualitative and quantitative comparative analysis (2006) 0.01 
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    Date
    5. 6.2006 11:22:23
  15. Xu, Y.: ¬The dynamics of interactive information retrieval behavior : part I: an activity theory perspective (2007) 0.01 
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    Date
    27. 5.2007 13:55:22
  16. Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : part II: empirical verification (2007) 0.01 
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    Date
    23.12.2007 12:22:16
  17. Whitmire, E.: ¬The relationship between undergraduates' epistemological beliefs, reflective judgment, and their information-seeking behavior (2004) 0.01 
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    Source
    Information processing and management. 40(2004) no.1, S.97-111
  18. Ford, N.; Miller, D.; Moss, N.: Web search strategies and retrieval effectiveness : an empirical study (2002) 0.01 
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    Abstract
    This paper reports the results of a study funded by the Arts and Humanities Research Board which sought to investigate links between Web search strategies and retrieval effectiveness. A total of 68 students, enrolled on masters programmes in librarianship, information management and information systems, searched for two topics using the AltaVista search engine. Logs of the resultant 341 queries, along with relevance judgements for over 4,000 retrieved items, were analysed using factor analysis and regression. The differing but complementary types and strengths of evidence produced by these two forms of analysis are discussed and presented. Retrieval effectiveness was associated positively with best-match searching and negatively with Boolean searching. The implications of these findings for Web searching are discussed.
  19. Kraaijenbrink, J.: Engineers and the Web : an analysis of real life gaps in information usage (2007) 0.01 
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    Source
    Information processing and management. 43(2007) no.5, S.1368-1382
  20. Spink, A.; Park, M.; Koshman, S.: Factors affecting assigned information problem ordering during Web search : an exploratory study (2006) 0.01 
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    Source
    Information processing and management. 42(2006) no.5, S.1366-1378

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