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» Algorithms for Rewriting Aggregate Queries Using Views
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153
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SEMWEB
2010
Springer
15 years 1 months ago
An Expressive and Efficient Solution to the Service Selection Problem
Given the large number of Semantic Web Services that can be created from online sources by using existing annotation tools, expressive formalisms and efficient and scalable approac...
Daniel Izquierdo, Maria-Esther Vidal, Blai Bonet
VLDB
2007
ACM
121views Database» more  VLDB 2007»
16 years 4 months ago
Efficient Keyword Search over Virtual XML Views
Emerging applications such as personalized portals, enterprise search and web integration systems often require keyword search over semi-structured views. However, traditional inf...
Feng Shao, Lin Guo, Chavdar Botev, Anand Bhaskar, ...
129
Voted
PVLDB
2010
93views more  PVLDB 2010»
15 years 2 months ago
Distributed Threshold Querying of General Functions by a Difference of Monotonic Representation
The goal of a threshold query is to detect all objects whose score exceeds a given threshold. This type of query is used in many settings, such as data mining, event triggering, a...
Guy Sagy, Daniel Keren, Izchak Sharfman, Assaf Sch...
PODS
2005
ACM
211views Database» more  PODS 2005»
16 years 4 months ago
Join-distinct aggregate estimation over update streams
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. Pro...
Sumit Ganguly, Minos N. Garofalakis, Amit Kumar, R...
TKDE
2012
253views Formal Methods» more  TKDE 2012»
13 years 6 months ago
Horizontal Aggregations in SQL to Prepare Data Sets for Data Mining Analysis
—Preparing a data set for analysis is generally the most time consuming task in a data mining project, requiring many complex SQL queries, joining tables and aggregating columns....
Carlos Ordonez, Zhibo Chen 0002