3 search results - page 1 / 1 » Compressing Bitmap Indices by Data Reorganization |
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...
VLDB
2004
ACM
13 years 10 months ago
2004
ACM
It is well established that bitmap indices are efficient for read-only attributes with low attribute cardinalities. For an attribute with a high cardinality, the size of the bitma...
WWW
2008
ACM
14 years 5 months ago
2008
ACM
To solve this problem, we devised the HS-bitmap index, which is hierarchically comprised of compressed data of summary bits. A summary bit in an upper matrix is obtained by logical...