12 search results - page 1 / 3 » Lower bounds for 2-dimensional range counting |
STOC
2007
ACM
14 years 5 months ago
2007
ACM
STOC
2012
ACM
11 years 7 months ago
2012
ACM
In this paper we develop a new technique for proving lower bounds on the update time and query time of dynamic data structures in the cell probe model. With this technique, we pro...
COMPGEOM
2004
ACM
13 years 10 months ago
2004
ACM
We present memory-efficient deterministic algorithms for constructing -nets and -approximations of streams of geometric data. Unlike probabilistic approaches, these deterministic...
ICDT
2009
ACM
14 years 5 months ago
2009
ACM
We continue the study of approximating the number of distinct elements in a data stream of length n to within a (1? ) factor. It is known that if the stream may consist of arbitra...
DCC
2008
IEEE
14 years 4 months ago
2008
IEEE
We introduce a new variant of the popular Burrows-Wheeler transform (BWT) called Geometric Burrows-Wheeler Transform (GBWT). Unlike BWT, which merely permutes the text, GBWT conve...