199 search results - page 6 / 40 » A Performance Comparison of bitmap indexes |
SIGMOD
1997
ACM
15 years 1 months ago
1997
ACM
: The read-mostly environment of data warehousing makes it possible to use more complex indexes to speed up queries than in situations where concurrent updatesare present. The curr...
CVPR
1998
IEEE
15 years 11 months ago
1998
IEEE
Temporal segmentation of video is a necessary rst step to indexing digital video for browsing and retrieval. A number of di erent video temporal segmentation algorithms have been ...
IJOCI
2010
14 years 6 months ago
2010
We present a time-efficient approach to index objects moving on the plane to efficiently answer range queries about their future positions. Each object is moving with non small ve...
TWC
2008
14 years 9 months ago
2008
We present a space-time coded system which achieves high throughput and good performance using lowcomplexity detection and decoding. We focus on a Rate 2 quasiorthogonal space-time...
107
click to vote
INFORMATICALT
2011
14 years 4 months ago
2011
This paper presents a study of the Hurst index estimation in the case of fractional Ornstein–Uhlenbeck and geometric Brownian motion models. The performance of the estimators is ...