M.: CRES at LogCLEF 2010: Towards understanding the user behaviors through an analysis of search sessions, search units and click ranks

Abstract. This paper describes the participation of Cognitive Research on Exploratory Search (CRES) collaborative research group at National Institute of Informatics (NII) for LogCLEF 2010. Analysis of multilingual search logs from two separated time periods was conducted with the purposes to investigate the users search behaviors as processes which consisting of sequences of actions and duration. We extended our methodologies investigating the users ’ search behavior using the laboratory user experiments and the user-side log analysis to the TEL’s action logs. For the first, we cleaned up the log data by discarding the records from the periods without “recordPosition ” or “timestamp”. Secondly we did mapping the analytical framework for the Web search to the TEL by comparing the actions recorded in the TEL’s log files and those recorded in our client-side logs for web search, and the page transitions in TEL and the web search. Thirdly, we have analyzed the TEL’s action logs in terms of search sessions, search units and click ranks. As results the numbers of the actions in search sessions and search units were generally short and an