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SIGMOD
2008
ACM
65views Database» more  SIGMOD 2008»
14 years 6 months ago
Generating targeted queries for database testing
Tools for generating test queries for databases do not explicitly take into account the actual data in the database. As a consequence, such tools cannot guarantee suitable coverag...
Chaitanya Mishra, Nick Koudas, Calisto Zuzarte
SIGMOD
2007
ACM
196views Database» more  SIGMOD 2007»
14 years 6 months ago
GPUQP: query co-processing using graphics processors
We present GPUQP, a relational query engine that employs both CPUs and GPUs (Graphics Processing Units) for in-memory query co-processing. GPUs are commodity processors traditiona...
Rui Fang, Bingsheng He, Mian Lu, Ke Yang, Naga K. ...
CIKM
2008
Springer
13 years 8 months ago
Aggregate queries over ontologies
Answering queries over ontologies is an important issue for the Semantic Web. Aggregate queries were widely studied for relational databases but almost no results are known for ag...
Diego Calvanese, Evgeny Kharlamov, Werner Nutt, Ca...
IADIS
2004
13 years 8 months ago
A new use of XML for querying databases in Web applications
Internet has changed many aspects of our society, transforming it in e-society, and is having special importance in business world, Internet has converted business in e-business. ...
Ana Fermoso García, María José...
SIGMOD
2008
ACM
206views Database» more  SIGMOD 2008»
14 years 6 months ago
Ad-hoc aggregations of ranked lists in the presence of hierarchies
A variety of web sites and web based services produce textual lists at varying time granularities ranked according to several criteria. For example, Google Trends produces lists o...
Nilesh Bansal, Sudipto Guha, Nick Koudas