Authors' Addresses

   Bob Braden
   USC Information Sciences Institute
   4676 Admiralty Way
   Marina del Rey, CA 90292

   Phone: (310) 822-1511
   EMail: Braden@ISI.EDU



   Lixia Zhang
   UCLA Computer Science Department
   4531G Boelter Hall
   Los Angeles, CA 90095-1596 USA

   Phone: 310-825-2695
   EMail: lixia@cs.ucla.edu



   Steve Berson
   USC Information Sciences Institute
   4676 Admiralty Way
   Marina del Rey, CA 90292

   Phone: (310) 822-1511
   EMail: Berson@ISI.EDU



   Shai Herzog
   IBM T. J. Watson Research Center
   P.O Box 704
   Yorktown Heights, NY 10598

   Phone: (914) 784-6059
   EMail: Herzog@WATSON.IBM.COM



   Sugih Jamin
   University of Michigan
   CSE/EECS
   1301 Beal Ave.
   Ann Arbor, MI 48109-2122

   Phone: (313) 763-1583

   EMail: jamin@EECS.UMICH.EDU