360 search results - page 52 / 72 » Indexing the Distance: An Efficient Method to KNN Processing |
IJAC
2008
13 years 7 months ago
2008
We give an efficient algorithm to randomly generate finitely generated subgroups of a given size, in a finite rank free group. Here, the size of a subgroup is the number of vertic...
ICIP
2009
IEEE
13 years 5 months ago
2009
IEEE
We propose a region-based method to extract semantic foreground regions from color video sequences with static backgrounds. First, we introduce a new distance measure for backgrou...
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
Multimedia similarity search has been playing a critical role in many novel applications. Typically, multimedia objects are described by high-dimensional feature vectors (or point...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
We introduce a novel spatial join operator, the ring-constrained join (RCJ). Given two sets P and Q of spatial points, the result of RCJ consists of pairs p, q (where p P, q Q) ...
VIS
2004
IEEE
14 years 8 months ago
2004
IEEE
In this paper, we present an approach for monitoring the positions of vector field singularities in time-dependent datasets. The concept of singularity index is discussed and exte...