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Event Entry

What and Who

Approximate nearest neighbor search in the Hamming cube

Venkatesh Srinivasan
Max-Planck-Institut für Informatik - AG 1
AG1 Mittagsseminar (others' work)
AG 1  
AG Audience
English

Date, Time and Location

Wednesday, 29 January 2003
13:30
45 Minutes
46.1 - MPII
024
Saarbrücken

Abstract

We consider the nearest neighbor problem over the d-dimensional cube:

given a set of points in {0,1}^d, store it so that, for any query
element, the nearest point (in the L^1 sense) can be found quickly.
We describe a lower bound result of Chakrabarti, Chazelle, Gum and
Lvov that shows that at least log log d / log log log d queries are
necessary to answer such queries in the worst case. This result holds
in the cell probe model. This result appeared in STOC 1999.

Contact

Venkatesh Srinivasan
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