Search (278 results, page 1 of 14)

  • × theme_ss:"Suchtaktik"
  1. Morse, P.M.: Search theory and browsing (1970) 0.05
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    Date
    22. 5.2005 19:53:09
    Language
    e
  2. Crestani, F.; Du, H.: Written versus spoken queries : a qualitative and quantitative comparative analysis (2006) 0.04
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    Abstract
    The authors report on an experimental study on the differences between spoken and written queries. A set of written and spontaneous spoken queries are generated by users from written topics. These two sets of queries are compared in qualitative terms and in terms of their retrieval effectiveness. Written and spoken queries are compared in terms of length, duration, and part of speech. In addition, assuming perfect transcription of the spoken queries, written and spoken queries are compared in terms of their aptitude to describe relevant documents. The retrieval effectiveness of spoken and written queries is compared using three different information retrieval models. The results show that using speech to formulate one's information need provides a way to express it more naturally and encourages the formulation of longer queries. Despite that, longer spoken queries do not seem to significantly improve retrieval effectiveness compared with written queries.
    Date
    5. 6.2006 11:22:23
    Language
    e
  3. Morse, P.M.: Browsing and search theory (1973) 0.04
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    Date
    22. 5.2005 19:52:29
    Language
    e
  4. Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000) 0.04
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    Language
    e
    Source
    Library and information science research. 22(2000) no.4, S.371-382
  5. Vakkari, P.; Pennanen, M.; Serola, S.: Changes of search terms and tactics while writing a research proposal : a longitudinal case study (2003) 0.04
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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.
    Language
    e
  6. 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) 0.03
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    Date
    5. 8.2006 13:22:44
    Language
    e
  7. Madden, A.D.; Ford, N.J.; Miller, D.; Levy, P.: Children's use of the internet for information-seeking : what strategies do they use, and what factors affect their performance? (2006) 0.02
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    Abstract
    Purpose - A common criticism of research into information seeking on the internet is that information seekers are restricted by the demands of the researcher. Another criticism is that the search topics, are often imposed by the researcher, and; particularly when working with children, domain knowledge could be as important as information-seeking skills. The research reported here attempts to address both these problems. Design/methodology/approach - A total of 15 children, aged 11 to 16, were each set three "think aloud" internet searches. In the first, they were asked to recall the last time they had sought information on the internet, and to repeat the search. For the second, they were given a word, asked to interpret it, then asked to search for their interpretation. For the third, they were asked to recall the last time they had been unsuccessful in a search, and to repeat the search. While performing each task, the children were encouraged to explain their actions. Findings - The paper finds that the factors that determined a child's ability to search successfully appeared to be: the amount of experience the child had of using the internet; the amount of guidance, both from adults and from peers; and the child's ability to explore the virtual environment, and to use the tools available for so doing. Originality/value - Many of the searches performed by participants in this paper were not related to schoolwork, and so some of the search approaches differed from those taught by teachers. Instead, they evolved through exploration and exchange of ideas. Further studies of this sort could provide insights of value to designers of web environments.
    Language
    e
  8. Cleary, J.S.: Asking the right question : formulating effective search strategies for electronic databases (1997) 0.02
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    Abstract
    Describes a simple technique that enables students to practice skills in formulating search strategies for electronic databases. Currently used in some library instruction classes at Slippery Roch University, this technique employs cooperative learning and critical thinking skills, requires relatively little time, and is effective with both undergraduates and graduates. In particular this technique claerly demonstrates that information retrieval is greatly affected by the manner in which the question is asked
    Language
    e
  9. Hsieh-Yee, I.: Search tactics of Web users in searching for texts, graphics, known items and subjects : a search simulation study (1998) 0.02
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    Date
    25.12.1998 19:22:31
    Language
    e
  10. Limberg, L.: Three conceptions of information seeking and use (1999) 0.02
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    Date
    22. 3.2002 9:53:10
    Language
    e
  11. Lin, S.-j.; Belkin, N.: Validation of a model of information seeking over multiple search sessions (2005) 0.02
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    Date
    10. 4.2005 14:52:22
    Language
    e
  12. Koopmans, N.I.: What's your question? : The need for research information from the perspective of different user groups (2002) 0.02
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    Date
    2. 7.2005 12:22:50
    Language
    e
  13. Xu, Y.: ¬The dynamics of interactive information retrieval behavior : part I: an activity theory perspective (2007) 0.02
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    Date
    27. 5.2007 13:55:22
    Language
    e
  14. Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : part II: empirical verification (2007) 0.02
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    Date
    23.12.2007 12:22:16
    Language
    e
  15. Saastamoinen, M.; Järvelin, K.: Search task features in work tasks of varying types and complexity (2017) 0.02
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    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.
    Language
    e
  16. DiMartino, D.; Zoe, L.R.: End-user full-text searching : access or excess? (1996) 0.02
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    Abstract
    Reports a study which examined and assessed the search techniques of trained end-users to determine whether or not they were searching the system affectively. 131 multilingual graduate students at Baruch College, City University of New York searched a full-text system and completed a survey that asked them to evaluate the system and describe their search strategy and techniques. 55% indicated dissatisfaction with their searches. Correlations between native language and searching results and satisfaction are shown. Findings suggest that computer-literate end users with prior experience searching other databases and formal training experience more difficulties than in commonly realized. Discusses the implications for training
    Language
    e
  17. Still, J.: ¬The anthroplogy of online search strategy formation : a study of four countires (1996) 0.02
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    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
    Language
    e
  18. Pontis, S.; Blandford, A.; Greifeneder, E.; Attalla, H.; Neal, D.: Keeping up to date : an academic researcher's information journey (2017) 0.02
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    Language
    e
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.1, S.22-35
  19. Byström, K.: Information seekers in context : an analysis of the 'doer' in INSU studies (1999) 0.02
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    Date
    22. 3.2002 9:55:52
    Language
    e
  20. Mansourian, Y.: Contextual elements and conceptual components of information visibility on the web (2008) 0.02
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    Date
    1. 1.2009 10:22:40
    Language
    e

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