79 search results - page 1 / 16 » Optimizing Queries on Compressed Bitmaps |
EDBT
2010
ACM
13 years 11 months ago
2010
ACM
Compressed bitmap indexes are increasingly used for efficiently querying very large and complex databases. The Word Aligned Hybrid (WAH) bitmap compression scheme is commonly rec...
VLDB
2000
ACM
13 years 8 months ago
2000
ACM
IDEAS
2007
IEEE
13 years 11 months ago
2007
IEEE
Historically, bitmap indexing has provided an important database capability to accelerate queries. However, only a few database systems have implemented these indexes because of t...
ICDE
2005
IEEE
14 years 6 months ago
2005
IEEE
Many scientific applications generate massive volumes of data through observations or computer simulations, bringing up the need for effective indexing methods for efficient stora...
SSDBM
2002
IEEE
13 years 9 months ago
2002
IEEE
In this paper, we study the effects of compression on bitmap indexes. The main operations on the bitmaps during query processing are bitwise logical operations such as AND, OR, N...