[ont.events] More UofT DCS Seminars

phyllis (04/27/83)

Additions to UofT Department of Computer Science Seminar Schedule for
		     the week of May 2nd, 1983


Wednesday, May 4th, 4:00 P.M., GB120:  Professor Mike Luby, Computer
  Science Department, University of California at Berkeley:  "New Monte
  Carlo methods for estimating the probablity that a random graph is
  connected".

phyllis@utcsrgv.UUCP (Phyllis Eve Bregman) (10/17/83)

			    **MORE**
	UofT Department of Computer Science Seminar Schedule for
		   the week of October 17th, 1983


Thursday, October 20th, 2:00 P.M., GB248:  Prof. Markuu Tamminen,
   Helsinki University of Technology, Laboratory of Information Processing
   Science, Helsinki, Finland:  "On search by address computation".

   ABSTRACT:  We study the effect of data distribution on the efficiency
   of address computation data structures for searching, as typified by
   the priority queue problem.  We present a comparison of several different
   techniques and show that, in contrast to sorting, neither one nor
   multilevel bucket methods are uniformly efficient for the above task.
   As a remedy we propose an enhancement of order preserving extendible
   hashing.  This structure is shown to behave asymptotically independently
   of the amount of data and its distribution.  From the one-dimensional
   analysis we draw conclusions regarding multi-attribute file structures.
-- 
		Phyllis Eve Bregman
		CSRG, Univ. of Toronto
		{decvax,linus,ihnp4,uw-beaver,floyd,utzoo}!utcsrgv!phyllis