Literatur zur Informationserschließung

Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.

© 2015 W. Gödert, TH Köln, Institut für Informationswissenschaft / Powered by litecat, BIS Oldenburg (Stand: 28. April 2022)

Suchergebnisse

• 1
  Large, A. ; Beheshti, J. ; Rahman, T.: Design criteria for children's Web portals : the users speak out.
  In: Journal of the American Society for Information Science and technology. 53(2002) no.2, S.79-94.
  
  Abstract: Four focus groups were held with young Web users (10 to 13 years of age) to explore design criteria for Web portals. The focus group participants commented upon four existing portals designed with young users in mind: Ask Jeeves for Kids, KidsClick, Lycos Zone, and Yahooligans! This article reports their first impressions on using these portals, their likes and dislikes, and their suggestions for improvements. Design criteria for children's Web portals are elaborated based upon these comments under four headings: portal goals, visual design, information architecture, and personalization. An ideal portal should cater for both educational and entertainment needs, use attractive screen designs based especially on effective use of color, graphics, and animation, provide both keyword search facilities and browsable subject categories, and allow individual user personalization in areas such as color and graphics
  
  Themenfeld: Suchmaschinen ; Benutzerstudien
  Objekt: WWW ; AskJeeves for Kids ; KidsClick ; Lycos Zone ; Yahooligans
  
  
• 2
  Bilal, D.: Children's use of the Yahooligans! Web search engine : III. Cognitive and physical behaviors on fully self-generated search tasks.
  In: Journal of the American Society for Information Science and technology. 53(2002) no.13, S.1170-1183.
  
  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.
  
  Themenfeld: Suchmaschinen ; Benutzerstudien
  Objekt: Yahooligans!
  
  
• 3
  Bilal, D.: Children's use of the Yahooligans! Web search engine : II. Cognitive and physical behaviors on research tasks.
  In: Journal of the American Society for Information Science and technology. 52(2001) no.2, S.118-136.
  
  Abstract: This study reports the results of Part 11 of a research project that investigated the cognitive and physical behaviors of middle school students in using Yahooligans! Seventeen students in the seventh grade searched Yahooligans! to locate relevant information for an assigned research task. Sixty-nine percent partially succeeded, while 31 % failed. Children had difficulty completing the task mainly because they lacked adequate level of research skills and approached the task by seeking specific answers. Children's cognitive and physical behaviors varied by success levels. Similarities and differences in children's cognitive and physical behaviors were found between the research task and the factbased task they performed in the previous study. The present study considers the impact of prior experience in using the Web, domain knowledge, topic knowledge, and reading ability on children's success. It reports the overall patterns of children's behaviors, including searching and browsing moves, backtracking and looping moves, and navigational styles, as well as the time taken to complete the research task. Children expressed their information needs and provided recommendations for improving the interface design of Yahooligans! Implications for formal Web training and system design improvements are discussed
  
  Themenfeld: Suchmaschinen ; Benutzerstudien
  Objekt: Yahooligans
  
  
• 4
  Bilal, D.: Children's use of the Yahooligans! Web search engine : I. Cognitive, physical, and affective behaviors on fact-based search tasks.
  In: Journal of the American Society for Information Science. 51(2000) no.7, S.646-665.
  
  Abstract: This study reports on the first part of a research project that investigated children's cognitive, affective, and physical behaviors as they use the Yahooligans! search engine to find information on a specific search task. 27 seventh-grade science children from a middle school located in Knoxville, Tennessee participated in the period. Their cognitive and physical behaviors were captured using Lotus ScreenCam, a Windows based software package that captures and replays activities recorded in Web browsers, such as Netscape. Their affective states were captured via a one-on-one exit interview. A new measure called "Web traversal measure" was developed to measure children's "weighted" traversal effectiveness and efficiency scores, as well as their quality moves in Yahooligans! Children's prior experience in using the Internet/Web and their knowledge of the Yahooligans! interface were gathered via a questionnaire. The findings provided insights into children's bahviors and success, as their weighted traversal effectiveness and efficiency scores, as well as quality moves. Implications for user training and system design are discussed
  
  Themenfeld: Suchmaschinen ; Benutzerstudien
  Objekt: Yahooligans