Abstract:

 Continuing advances in hardware technology have enabled the
 proliferation of faster, cheaper, and more capable personal
 computers. As users interact with the world and their peers
 through their computers, it is becoming important to archive
 and later search the information that they have *viewed*.
 Exponential improvements in processing and storage are not
 making this problem any easier. Existing state-of-the-art
 desktop search tools fail to provide a suitable solution.

 DejaView is a personal virtual computer recorder that provides
 a complete record of a desktop computing experience. DejaView
 continuously records a user's session to provide a complete
 WYSIWYS (What You See Is What You've Seen) record and enable
 a user to playback, browse, search and revive records. DejaView
 combines transparent operating system, display and file system
 virtualization, with semantic information recorder and a desktop
 search system, to provide this functionality without any chances
 to applications, window systems, or operating system kernels.
 Experimental results show that DejaView provides continuous
 recording without any user noticeable performance degradation,
 and is fast enough for interactive use.

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DHORT BIO

 Oren Laadan is a PhD candidate of Computer Science at Columbia University,
 member of the Network Computing Laboratory , and the recipient of the
 Presidential Distinguished Fellowship. He received his B.Sc. in Physics,
 Mathematics and Computer Science, and M.Sc. in Computer Science, all from
 the Hebrew University of Jerusalem, where he was a principal member of
 the MOSIX R&D team. His research interests lie broadly in operating 
 systems, virtualization, distributed and parallel systems, and high 
 performance computing. His recent research focuses on leveraging 
 application level virtualization for transparent checkpoint/restart. 
 He also leads the Linux Checkpoint-Restart project.