Search (26 results, page 1 of 2)

  • × theme_ss:"Benutzerstudien"
  • × year_i:[2000 TO 2010}
  1. Scholle, U.: Kann ich Ihnen behilflich sein? : Erhebung am zentralen Auskunftsplatz der ULB Münster (2000) 0.02 
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    Date
    22. 1.2000 17:52:11
  2. 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
  3. Yoo, E.-Y.; Robbins, L.S.: Understanding middle-aged women's health information seeking on the web : a theoretical approach (2008) 0.02 
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    Date
    9. 2.2008 17:52:22
  4. Jansen, B.J.; Booth, D.L.; Spink, A.: Determining the informational, navigational, and transactional intent of Web queries (2008) 0.02 
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    Abstract
    In this paper, we define and present a comprehensive classification of user intent for Web searching. The classification consists of three hierarchical levels of informational, navigational, and transactional intent. After deriving attributes of each, we then developed a software application that automatically classified queries using a Web search engine log of over a million and a half queries submitted by several hundred thousand users. Our findings show that more than 80% of Web queries are informational in nature, with about 10% each being navigational and transactional. In order to validate the accuracy of our algorithm, we manually coded 400 queries and compared the results from this manual classification to the results determined by the automated method. This comparison showed that the automatic classification has an accuracy of 74%. Of the remaining 25% of the queries, the user intent is vague or multi-faceted, pointing to the need for probabilistic classification. We discuss how search engines can use knowledge of user intent to provide more targeted and relevant results in Web searching.
  5. Koch, T.; Golub, K.; Ardö, A.: Users browsing behaviour in a DDC-based Web service : a log analysis (2006) 0.02 
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    Abstract
    This study explores the navigation behaviour of all users of a large web service, Renardus, using web log analysis. Renardus provides integrated searching and browsing access to quality-controlled web resources from major individual subject gateway services. The main navigation feature is subject browsing through the Dewey Decimal Classification (DDC) based on mapping of classes of resources from the distributed gateways to the DDC structure. Among the more surprising results are the hugely dominant share of browsing activities, the good use of browsing support features like the graphical fish-eye overviews, rather long and varied navigation sequences, as well as extensive hierarchical directory-style browsing through the large DDC system.
    Footnote
    Beitrag in einem Themenheft "Moving beyond the presentation layer: content and context in the Dewey Decimal Classification (DDC) System"
    Source
    Cataloging and classification quarterly. 42(2006) nos.3/4, S.163-186
  6. Gremett, P.: Utilizing a user's context to improve search results (2006) 0.01 
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    Date
    22. 7.2006 18:17:44
  7. Schneider, R.: OPACs, Benutzer und das Web (2009) 0.01 
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    Date
    22. 2.2009 18:50:43
  8. Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008) 0.01 
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    Date
    10. 9.2000 17:38:22
  9. Campbell, G.: ¬A queer eye for the faceted guy : how a universal classification principle can be applied to a distinct subculture (2004) 0.01 
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    Content
    1. Introduction The title of this paper is taken from a TV show which has gained considerable popularity in North America: A Queer Eye for the Straight Guy, in which a group of gay men subject a helpless straight male to a complete fashion makeover. In facet analysis, this would probably be seen as an "operation upon" something, and the Bliss Bibliographic Classification would place it roughly two-thirds of the way along its facet order, after "types" and "materials," but before "space" and "time." But the link between gay communities and facet analysis extends beyond the facetious title. As Web-based information resources for gay and lesbian users continue to grow, Web sites that cater to, or at least refrain from discriminating against gay and lesbian users are faced with a daunting challenge when trying to organize these diverse resources in a way that facilitates congenial browsing. And principles of faceted classification, with their emphasis an clear and consistent principles of subdivision and their care in defining the order of subdivisions, offer an important opportunity to use time-honoured classification principles to serve the growing needs of these communities. If faceted organization schemes are to work, however, we need to know more about gay and lesbian users, and how they categorize themselves and their information sources. This paper presents the results of an effort to learn more.
  10. Agosto, D.E.: Bounded rationality and satisficing in young people's Web-based decision making (2002) 0.01 
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    Abstract
    This study investigated Simon's behavioral decisionmaking theories of bounded rationality and satisficing in relation to young people's decision making in the World Wide Web, and considered the role of personal preferences in Web-based decisions. It employed a qualitative research methodology involving group interviews with 22 adolescent females. Data analysis took the form of iterative pattern coding using QSR NUD*IST Vivo qualitative data analysis software. Data analysis revealed that the study participants did operate within the limits of bounded rationality. These limits took the form of time constraints, information overload, and physical constraints. Data analysis also uncovered two major satisficing behaviors-reduction and termination. Personal preference was found to play a major role in Web site evaluation in the areas of graphic/multimedia and subject content preferences. This study has related implications for Web site designers and for adult intermediaries who work with young people and the Web
  11. Large, A.; Beheshti, J.; Rahman, T.: Design criteria for children's Web portals : the users speak out (2002) 0.01 
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    Date
    2. 6.2005 10:34:22
  12. Fidel, R.: ¬The user-centered approach (2000) 0.01 
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    Date
    22. 9.1997 19:16:05
  13. Bilal, D.: Children's use of the Yahooligans! Web search engine : III. Cognitive and physical behaviors on fully self-generated search tasks (2002) 0.01 
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    Abstract
    Bilal, in this third part of her Yahooligans! study looks at children's performance with self-generated search tasks, as compared to previously assigned search tasks looking for differences in success, cognitive behavior, physical behavior, and task preference. Lotus ScreenCam was used to record interactions and post search interviews to record impressions. The subjects, the same 22 seventh grade children in the previous studies, generated topics of interest that were mediated with the researcher into more specific topics where necessary. Fifteen usable sessions form the basis of the study. Eleven children were successful in finding information, a rate of 73% compared to 69% in assigned research questions, and 50% in assigned fact-finding questions. Eighty-seven percent began using one or two keyword searches. Spelling was a problem. Successful children made fewer keyword searches and the number of search moves averaged 5.5 as compared to 2.4 on the research oriented task and 3.49 on the factual. Backtracking and looping were common. The self-generated task was preferred by 47% of the subjects.
  14. Kim, J.: Describing and predicting information-seeking behavior on the Web (2009) 0.01 
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    Date
    22. 3.2009 18:54:15
  15. Tang, M.-C.: Browsing and searching in a faceted information space : a naturalistic study of PubMed users' interaction with a display tool (2007) 0.01 
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    Abstract
    The study adopts a naturalistic approach to investigate users' interaction with a browsable MeSH (medical subject headings) display designed to facilitate query construction for the PubMed bibliographic database. The purpose of the study is twofold: first, to test the usefulness of a browsable interface utilizing the principle of faceted classification; and second, to investigate users' preferred query submission methods in different problematic situations. An interface that incorporated multiple query submission methods - the conventional single-line query box as well as methods associated the faceted classification display was constructed. Participants' interactions with the interface were monitored remotely over a period of 10 weeks; information about their problematic situations and information retrieval behaviors were also collected during this time. The traditional controlled experiment was not adequate in answering the author's research questions; hence, the author provides his rationale for a naturalistic approach. The study's findings show that there is indeed a selective compatibility between query submission methods provided by the MeSH display and users' problematic situations. The query submission methods associated with the display were found to be the preferred search tools when users' information needs were vague and the search topics unfamiliar. The findings support the theoretical proposition that users engaging in an information retrieval process with a variety of problematic situations need different approaches. The author argues that rather than treat the information retrieval system as a general purpose tool, more attention should be given to the interaction between the functionality of the tool and the characteristics of users' problematic situations.
  16. Ho, J.: Faculty and graduate student search patterns and perceptions of videos in the online catalog (2001) 0.01 
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    Source
    Cataloging and classification quarterly. 33(2001) no.2, S.69-88
  17. Salaba, A.: End-user understanding of indexing language information (2009) 0.01 
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    Source
    Cataloging and classification quarterly. 47(2009) no.1, S.xx-xx
  18. Wildemuth, B.M.: Effective methods for studying information seeking and use : Introduction and overview (2002) 0.01 
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    Date
    20. 1.2003 9:37:22
  19. Su, L.T.: ¬A comprehensive and systematic model of user evaluation of Web search engines : Il. An evaluation by undergraduates (2003) 0.01 
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    Date
    24. 1.2004 18:27:22
  20. Aula, A.; Nordhausen, K.: Modeling successful performance in Web searching (2006) 0.01 
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    Abstract
    Several previous studies have measured differences in the information search success of novices and experts. However, the definitions of novices and experts have varied greatly between the studies, and so have the measures used for search success. Instead of dividing the searchers into different groups based on their expertise, we chose to model search success with task completion speed, TCS. Towards this goal, 22 participants performed three fact-finding tasks and two broader tasks in an observational user study. In our model, there were two variables related to the Web experience of the participants. Other variables included, for example, the speed of query iteration, the length of the queries, the proportion of precise queries, and the speed of evaluating result documents. Our results showed that the variables related to Web experience had expected effects on TCS. The increase in the years of Web use was related to improvement in TCS in the broader tasks, whereas the less frequent Web use was related to a decrease in TCS in the fact-finding tasks. Other variables having significant effects on TCS in either of the task types were the speed of composing queries, the average number of query terms per query, the proportion of precise queries, and the participants' own evaluation of their search skills. In addition to the statistical models, we present several qualitative findings of the participants' search strategies. These results give valuable insight into the successful strategies in Web search beyond the previous knowledge of the expert-novice differences.

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