Search (47 results, page 2 of 3)

  • × theme_ss:"Benutzerstudien"
  • × year_i:[2000 TO 2010}
  1. 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
  2. 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.
  3. Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006) 0.01 
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    Date
    22. 7.2006 16:32:43
  4. Bilal, D.: Children's use of the Yahooligans! Web search engine : I. Cognitive, physical, and affective behaviors on fact-based search tasks (2000) 0.01 
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    Date
    20. 5.2000 17:37:21
  5. Wilson, T.D.; Ford, N.; Ellis, D.; Foster, A.; Spink, A.: Information seeking and mediated searching : Part 2: uncertainty and Its correlates (2002) 0.01 
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    Date
    21. 7.2006 14:23:30
  6. Ellis, D.; Wilson, T.D.; Ford, N.; Foster, A.; Lam, H.M.; Burton, R.; Spink, A.: Information seeking and mediated searching : Part 5: user-intermediary interaction (2002) 0.01 
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    Date
    21. 7.2006 13:53:43
  7. Ford, N.; Wilson, T.D.; Foster, A.; Ellis, D.; Spink, A.: Information seeking and mediated searching : Part 4: cognitive styles in information seeking (2002) 0.01 
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    Date
    21. 7.2006 14:30:52
  8. Spink, A.; Wilson, T.D.; Ford, N.; Foster, A.; Ellis, D.: Information seeking and mediated searching : Part 1: theoretical framework and research design (2002) 0.01 
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    Date
    21. 7.2006 14:23:51
  9. Lucas, W.T.; Topi, H.: Training for Web search : will it get you in shape? (2004) 0.01 
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    Date
    21. 7.2006 20:14:42
  10. Tombros, A.; Ruthven, I.; Jose, J.M.: How users assess Web pages for information seeking (2005) 0.01 
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    Date
    10. 4.2005 10:21:30
  11. Olson, H.A.; Schlegl, R.: Standardization, objectivity, and user focus : a meta-analysis of subject access critiques (2001) 0.01 
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    Date
    5. 6.2001 12:21:28
  12. Höchstötter, N.: Suchverhalten im Web : Erhebung, Analyse und Möglichkeiten (2007) 0.01 
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    Date
    21. 2.1997 19:37:24
  13. Borgman, C.L.; Smart, L.J.; Millwood, K.A.; Finley, J.R.; Champeny, L.; Gilliland, A.J.; Leazer, G.H.: Comparing faculty information seeking in teaching and research : implications for the design of digital libraries (2005) 0.01 
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    Date
    3. 6.2005 20:40:22
  14. Vaughan, L.; Thelwall, M.: Scholarly use of the Web : what are the key inducers of links to journal Web sites? (2003) 0.01 
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    21. 3.2003 14:51:27
  15. Cole, C.; Leide, J.E.: Using the user's mental model to guide the integration of information space into information need (2003) 0.01 
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    21. 3.2003 14:51:32
  16. Wagner-Döbler, R.: Was taugen Print und Online-Ausgaben? : Informationsmittel im direkten Usability-Vergleich (2004) 0.01 
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    Date
    21. 2.1997 19:37:24
  17. Mat-Hassan, M.; Levene, M.: Associating search and navigation behavior through log analysis (2005) 0.01 
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    21. 7.2005 16:24:10
  18. Kruschwitz, U.; AI-Bakour, H.: Users want more sophisticated search assistants : results of a task-based evaluation (2005) 0.01 
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    21. 2.2007 13:15:08
  19. Greisdorf, H.; O'Connor, B.: Nodes of topicality modeling user notions of on topic documents (2003) 0.01 
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    Abstract
    Griesdorf and O'Connor attempt to determine the aspects of a retrieved item that provide a questioner with evidence that the item is in fact on the topic searched independent of its relevance. To this end they collect data from 32 participants, 11 from the business community as well as 21 doctoral students at the University of North Texas each of whom were asked to state if they considered material that approaches a topic in each of 14 specific manners as " on topic" or "off topic." Chi-square indicates that the observed values are significantly different from expected values and the chi-square residuals for on topic judgements exceed plus or minus two in eight cases and plus two in five cases. The positive values which indicate a percentage of response greater than that from chance suggest that documents considered topical are only related to the problem at hand, contain terms that were in the query, and describe, explain or expand the topic of the query. The chi-square residuals for off topic judgements exceed plus or minus two in ten cases and plus two in four cases. The positive values suggest that documents considered not topical exhibit a contrasting, contrary, or confounding point of view, or merely spark curiosity. Such material might well be relevant, but is not judged topical. This suggests that topical appropriateness may best be achieved using the Bruza, et alia, left compositional monotonicity approach.
  20. Slone, D.J.: ¬The influence of mental models and goals on search patterns during Web interaction (2002) 0.01 
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    Date
    21. 7.2006 11:26:29

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