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» Extensible Query Processing in Starburst
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SIGMOD
2003
ACM
152views Database» more  SIGMOD 2003»
15 years 10 months ago
Warping Indexes with Envelope Transforms for Query by Humming
A Query by Humming system allows the user to find a song by humming part of the tune. No musical training is needed. Previous query by humming systems have not provided satisfacto...
Yunyue Zhu, Dennis Shasha
TIME
2006
IEEE
15 years 4 months ago
In time alone: on the computational power of querying the history
Querying its own history is an important mechanism in the computations, especially those interacting with people or other computations such as transaction processing, electronic d...
Alexei Lisitsa, Igor Potapov
SIGMOD
2010
ACM
154views Database» more  SIGMOD 2010»
14 years 10 months ago
Unbiased estimation of size and other aggregates over hidden web databases
Many websites provide restrictive form-like interfaces which allow users to execute search queries on the underlying hidden databases. In this paper, we consider the problem of es...
Arjun Dasgupta, Xin Jin, Bradley Jewell, Nan Zhang...
VLDB
2002
ACM
108views Database» more  VLDB 2002»
14 years 9 months 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
SIGMOD
2007
ACM
147views Database» more  SIGMOD 2007»
15 years 10 months ago
Extending relational query optimization to dynamic schemas for information integration in multidatabases
This paper extends relational processing and optimization to the FISQL/FIRA languages for dynamic schema queries over multidatabases. Dynamic schema queries involve the creation a...
Catharine M. Wyss, Felix I. Wyss