Yuka Egusa

サーチエンジン検索結果ページにおける視線情報の分析( 第17回(2009年度)年次大会(研究報告会&総会))

*1 物質・材料研究機構科学情報室 National Institute for Materials Science E-mail: TAKAKU.Masao@nims.go.jp 2 国立教育政策研究所教育研究情報センター National Institute for Educational Policy Research E-mail: yuka@nier.go.jp 3 東京電機大学情報環境学部情報環境学科 Tokyo Denki University E-mail: terai@sie.dendai.ac.jp 4 愛知教育大学教育学部 Aichi University of Education E-mail: hsaito@auecc.aichi-edu.ac.jp 5 放送大学 ICT活用・遠隔教育センター The Open University of Japan E-mail: miwamaki@code.u-air.ac.jp 6 国立情報学研究所情報社会相関研究系 /総合研究大学院大学 National Institute of Informatics / Graduate University for Advanced Studies E-mail: kando@nii.ac.jp

Connecting Qualitative and Quantitative Analysis of Web Search Process: Analysis Using Search Units

Our final goal is to understand exploratory searches as four levels of search processes: search task, intent unit, search unit, and link unit. To complete these objectives, we used qualitative data to categorize participants’ information needs for search units and quantitatively analyzed whether differences in the information needs of search units influence users’ search processes and how task types and groups affect search units. In the experiment, eleven undergraduates and five graduates conducted information gathering task for writing a report and trip planning. We recorded their verbal protocols during the tasks and post interviews, browser logs, screen captured video, and eye-tracking data. We divided the process of exploratory searches into search units. Then search units were classified into the two types of information needs, navigational and informational, based on qualitative data. We conducted a quantitative analysis to compare between tasks and groups and types of search units. The results showed that there were many differences between the information and navigation search units.

How concept maps change if a user does search or not

Previous studies have shown that a concept map can capture changes in the user knowledge structure during a search. However, these studies could not exclude the possibility of the influence of instructions or time-dependent changes. In this study, we have compared differences between concept maps created before and after a search condition and a non-search condition to reveal whether these changes are due to searching. In the experiment, participants were required to gather information on the Web in preparation for a group discussion. The participants were divided into two groups representing two tasks, convergent and divergent tasks. The convergent task required gathering web pages for a specific and detailed discussion, and the divergent task required gathering web pages for a wide-ranging discussion. Participants performed each task under search and filler conditions. In the search condition, they searched the Web. In the filler condition, they played a typing game on a PC. We compared pre- and post-task concept maps. Analysis of the number of nodes in the concept maps indicated that changes in the search condition are significant, whereas changes in the filler condition are insignificant. The analysis of the number of nodes at each distance from the center nodes in the concept maps showed that tasks had a greater effect in the search condition than in the filler condition. Finally, we consider whether the experimental results support our hypotheses.

Overlaps between Education Paper Index and CiNii

教育分野の研究論文や雑誌記事を対象とした論文データベースである教育研究論文索引は，国立教育政策研究所教育研究情報センター教育図書館によって作成されている．この教育研究論文索引のレコードがCiNii データベースとどれくらい重複しているかについて調査し，その分析結果を報告する．調査の結果，EPI データベースの収録論文のうち59～63% はCiNii にも収録されていることが分かった．これらの調査結果は，教育研究論文索引のサービス向上のための基礎データとするとともに，実サービスにおける論文リンクとして提供している．

Digitalization, Preservation and Application of Pre-war Textbook

日本の教科書のうち，特に現行の検定教科書以前に使用された戦前教科書の電子化と応用の現状を述べ，ケーススタディとして国立教育政策研究所教育研究情報センター教育図書館が所蔵する戦前教科書の電子化，保存とその応用について述べる．