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» On the Analysis of Indexing Schemes
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SSDBM
2002
IEEE
128views Database» more  SSDBM 2002»
14 years 24 days ago
Compressing Bitmap Indexes for Faster Search Operations
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...
Kesheng Wu, Ekow J. Otoo, Arie Shoshani
ISPAN
2002
IEEE
14 years 25 days ago
Parallel Selection Query Processing Involving Index in Parallel Database Systems
Index is an important element in databases, and the existence of index is unavoidable. When an index has been built on a particular attribute, database operations (e.g. selection,...
J. Wenny Rahayu, David Taniar
LOGCOM
2008
89views more  LOGCOM 2008»
13 years 7 months ago
Sequentially Indexed Grammars
This paper defines the grammar class of sequentially indexed grammars (SIGs) that results of a change in the index stack handling mechanism of indexed grammars [Aho68, Aho69]. SIG...
Jan van Eijck
DAS
2006
Springer
13 years 11 months ago
Retrieval from Document Image Collections
Abstract. This paper presents a system for retrieval of relevant documents from large document image collections. We achieve effective search and retrieval from a large collection ...
A. Balasubramanian, Million Meshesha, C. V. Jawaha...
SIGMOD
2003
ACM
163views Database» more  SIGMOD 2003»
14 years 8 months ago
Multi-Dimensional Clustering: A New Data Layout Scheme in DB2
We describe the design and implementation of a new data layout scheme, called multi-dimensional clustering, in DB2 Universal Database Version 8. Many applications, e.g., OLAP and ...
Sriram Padmanabhan, Bishwaranjan Bhattacharjee, Ti...