Sciweavers

829 search results - page 89 / 166
» Location-aware Query Processing and Optimization
Sort
View
PODS
2006
ACM
196views Database» more  PODS 2006»
16 years 23 days ago
The containment problem for REAL conjunctive queries with inequalities
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
T. S. Jayram, Phokion G. Kolaitis, Erik Vee
112
Voted
SIGMOD
2009
ACM
165views Database» more  SIGMOD 2009»
15 years 5 months ago
Query by output
It has recently been asserted that the usability of a database is as important as its capability. Understanding the database schema, the hidden relationships among attributes in t...
Quoc Trung Tran, Chee-Yong Chan, Srinivasan Partha...
103
Voted
ICML
2005
IEEE
16 years 1 months ago
Active learning for Hidden Markov Models: objective functions and algorithms
Hidden Markov Models (HMMs) model sequential data in many fields such as text/speech processing and biosignal analysis. Active learning algorithms learn faster and/or better by cl...
Brigham Anderson, Andrew Moore
DEBU
2000
147views more  DEBU 2000»
15 years 13 days ago
XJoin: A Reactively-Scheduled Pipelined Join Operator
Wide-area distribution raises significant performance problems for traditional query processing techniques as data access becomes less predictable due to link congestion, load imb...
Tolga Urhan, Michael J. Franklin
105
Voted
VLDB
2002
ACM
108views Database» more  VLDB 2002»
15 years 7 days ago
Adaptive Index Structures
Traditional indexes aim at optimizing the node accesses during query processing, which, however, does not necessarily minimize the total cost due to the possibly large number of r...
Yufei Tao, Dimitris Papadias