RCDL 2007, Pereslavl-Zalessky, Oct 2007 Converting Desktop into a Personal Activity Dataset Sergey Chernov, Enrico Minack, and Pavel Serdyukov L3S Research Center, Hannover, Germany University of Twente, The Netherlands RCDL 2007, Pereslavl-Zalessky, Oct 2007 Motivation - Over documents on a single PC, includings, text files and photos - Increasing need in PIM evaluation - Desktop usage data analysis RCDL 2007, Pereslavl-Zalessky, Oct 2007 Potential Applications for Activity Data Implicit links between documents can be applied in following: Ranking opportunities link-based ranking (PageRank, HITS, etc.) Recommendation features suggestions of related documents Interface improvement virtual folders, navigational dialogs, task detection User profiling popular documents are used for profile creation RCDL 2007, Pereslavl-Zalessky, Oct 2007 Logger RCDL 2007, Pereslavl-Zalessky, Oct 2007 Logger Framework RCDL 2007, Pereslavl-Zalessky, Oct 2007 Privacy Concerns for Main Logger and Firefox Plugin RCDL 2007, Pereslavl-Zalessky, Oct 2007 L3S Desktop Data Collection Privacy Guarantees - I will not redistribute the data you provided me to people outside L3S. Anybody from L3S whom I give access to the data will be required to sign this privacy statement. - The data you provided me will be automatically processed. I will not look at it manually (e.g. reading thes from a specific person). During the experiment, if I want to look at one specific data item or a group of files/data items, I will ask permission to the owner of the data to look at it. In this context, if I discover possibly sensitive data items, I will remove them from the collection. - Permissions of all files and directories will be set such that only the l3s-experiments-group and the super-user has access to these files, and that all those will be required to sign this privacy statement. RCDL 2007, Pereslavl-Zalessky, Oct 2007 Logged Information RCDL 2007, Pereslavl-Zalessky, Oct 2007 Timeline and Permanent Logged Information RCDL 2007, Pereslavl-Zalessky, Oct 2007 Generic and resource-specific data collected RCDL 2007, Pereslavl-Zalessky, Oct data collected RCDL 2007, Pereslavl-Zalessky, Oct 2007 Types of notifications RCDL 2007, Pereslavl-Zalessky, Oct 2007 Collected Documents RCDL 2007, Pereslavl-Zalessky, Oct 2007 Resource distribution over the users RCDL 2007, Pereslavl-Zalessky, Oct 2007 More statistics of collected data Total desktop items: 48,068 (including pictures and web-pages) Total size: 8.1GB User queries: 88 (e.g. information retrieval author:smith) Relevance judgments for top-5 results of 3 ranking algorithms RCDL 2007, Pereslavl-Zalessky, Oct 2007 Conclusions RCDL 2007, Pereslavl-Zalessky, Oct 2007 Conclusions -Methodology for desktop data collection was proposed -Logging application is implemented -First dataset has been created RCDL 2007, Pereslavl-Zalessky, Oct 2007 Future Work -Implement automatic tools for data analysis on user side -Test algorithms for activity-data enhanced search and document recommendation -Improve logger to support more applications RCDL 2007, Pereslavl-Zalessky, Oct 2007 !