Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quấc tế đề tài: Organization and exploration of heterogeneous personal data collected in daily life | Human-centric Computing and Information Sciences SpringerOpen0 This Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text HTML versions will be made available soon. Organization and exploration of heterogeneous personal data collected in daily life Human-centric Computing and Information Sciences 2012 2 1 doi 2192-1962-2-1 Teruhiko Teraoka tteraoka@ ISSN 2192-1962 Article type Research Submission date 9 September 2011 Acceptance date 24 January 2012 Publication date 24 January 2012 Article URL http content 2 1 1 This peer-reviewed article was published immediately upon acceptance. It can be downloaded printed and distributed freely for any purposes see copyright notice below . For information about publishing your research in Human-centric Computing and Information Sciences go to http authors instructions For information about other SpringerOpen publications go to http 2012 Teraoka licensee Springer. This is an open access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Organization and exploration of heterogeneous personal data collected in daily life Teruhiko Teraoka 1 Yahoo JAPAN Research Yahoo Japan Corporation Minato-ku Tokyo Japan Email Teruhiko Teraoka - tteraoka@ Corresponding author Abstract This paper describes a study on the organization and the exploration of heterogeneous personal data that are collected from mobile devices and web services in daily use. Although large amounts of personal data can be collected it is not easy to find effective methods of reusing these data. With regard to collecting personal data most lifelog research has focused on the capture of personal logs and personal data archives. Our .