Sciweavers

708 search results - page 80 / 142
» Optimizing SQL Queries over Text Databases
Sort
View
WWW
2006
ACM
14 years 9 months ago
Optimizing scoring functions and indexes for proximity search in type-annotated corpora
We introduce a new, powerful class of text proximity queries: find an instance of a given "answer type" (person, place, distance) near "selector" tokens matchi...
Soumen Chakrabarti, Kriti Puniyani, Sujatha Das
DAWAK
2000
Springer
14 years 1 months ago
Optimal Multidimensional Query Processing Using Tree Striping
In this paper, we propose a new technique for multidimensional query processing which can be widely applied in database systems. Our new technique, called tree striping, generalize...
Stefan Berchtold, Christian Böhm, Daniel A. K...
DEXA
2005
Springer
80views Database» more  DEXA 2005»
14 years 2 months ago
Optimizing I/O Costs of Multi-dimensional Queries Using Bitmap Indices
Bitmap indices are efficient data structures for processing complex, multi-dimensional queries in data warehouse applications and scientific data analysis. For high-cardinality at...
Doron Rotem, Kurt Stockinger, Kesheng Wu
CIKM
2004
Springer
14 years 19 days ago
Energy management schemes for memory-resident database systems
With the tremendous growth of system memories, memoryresident databases are increasingly becoming important in various domains. Newer memories provide a structured way of storing ...
Jayaprakash Pisharath, Alok N. Choudhary, Mahmut T...
CORR
2008
Springer
120views Education» more  CORR 2008»
13 years 9 months ago
XQuery Join Graph Isolation
A purely relational account of the true XQuery semantics can turn any relational database system into an XQuery processor. Compiling nested expressions of the fully compositional X...
Torsten Grust, Manuel Mayr, Jan Rittinger