3 search results - page 1 / 1 » Structural optimization of a full-text n -gram index using r... |
PODS
2009
ACM
14 years 5 months ago
2009
ACM
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
DAGSTUHL
2004
13 years 6 months ago
2004
We present the Priority R-tree, or PR-tree, which is the first R-tree variant that always answers a window query using O((N/B)1-1/d + T/B) I/Os, where N is the number of ddimensio...
CVPR
1998
IEEE
14 years 7 months ago
1998
IEEE
A new algorithm and systematic evaluation is presented for searching a database via relevance feedback. It represents a new image display strategy for the PicHunter system [2, 1]....