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» Containment of Aggregate Queries
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VLDB
2000
ACM
155views Database» more  VLDB 2000»
15 years 8 months ago
ICICLES: Self-Tuning Samples for Approximate Query Answering
Approximate query answering systems provide very fast alternatives to OLAP systems when applications are tolerant to small errors in query answers. Current sampling-based approach...
Venkatesh Ganti, Mong-Li Lee, Raghu Ramakrishnan
DOLAP
2000
ACM
15 years 9 months ago
CUBIST: A New Algorithm For Improving the Performance of Ad-hoc OLAP Queries
Being able to efficiently answer arbitrary OLAP queries that aggregate along any combination of dimensions over numerical and categorical attributes has been a continued, major co...
Lixin Fu, Joachim Hammer
DCOSS
2006
Springer
15 years 8 months ago
Comparative Analysis of Push-Pull Query Strategies for Wireless Sensor Networks
Abstract. We present a comparative mathematical analysis of two important distinct approaches to hybrid push-pull querying in wireless sensor networks: structured hash-based data-c...
Shyam Kapadia, Bhaskar Krishnamachari
PVLDB
2008
138views more  PVLDB 2008»
15 years 4 months ago
A skip-list approach for efficiently processing forecasting queries
Time series data is common in many settings including scientific and financial applications. In these applications, the amount of data is often very large. We seek to support pred...
Tingjian Ge, Stanley B. Zdonik
SIGMOD
2002
ACM
236views Database» more  SIGMOD 2002»
16 years 4 months ago
The Cougar Approach to In-Network Query Processing in Sensor Networks
The widespread distribution and availability of smallscale sensors, actuators, and embedded processors is transforming the physical world into a computing platform. One such examp...
Yong Yao, Johannes Gehrke