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EDBT
2004
ACM
187views Database» more  EDBT 2004»
14 years 10 months ago
Hierarchical In-Network Data Aggregation with Quality Guarantees
Earlier work has demonstrated the effectiveness of in-network data aggregation in order to minimize the amount of messages exchanged during continuous queries in large sensor netwo...
Antonios Deligiannakis, Yannis Kotidis, Nick Rouss...
DCC
2003
IEEE
14 years 9 months ago
Linear Programming Optimization for Video Coding under Multiple Constraints
This paper introduces a linear programming (LP) technique that performs ratedistortion based optimization for constrained video coding. Given the assumption of piecewise linear an...
Yegnaswamy Sermadevi, Sheila S. Hemami
EDBT
2009
ACM
102views Database» more  EDBT 2009»
14 years 4 months ago
On keys, foreign keys and nullable attributes in relational mapping systems
We consider the following scenario for a mapping system: given a source schema, a target schema, and a set of value correspondences between these two schemas, generate an executab...
Luca Cabibbo
CDC
2008
IEEE
117views Control Systems» more  CDC 2008»
14 years 4 months ago
Event-based optimization for dispatching policies in material handling systems of general assembly lines
—A material handling (MH) system of a general assembly line dispatching parts from inventory to working buffers could be complicated and costly to operate. Generally it is extrem...
Yanjia Zhao, Qianchuan Zhao, Qing-Shan Jia, Xiaoho...
CEC
2008
IEEE
14 years 4 months ago
A study on constrained MA using GA and SQP: Analytical vs. finite-difference gradients
— Many deterministic algorithms in the context of constrained optimization require the first-order derivatives, or the gradient vectors, of the objective and constraint function...
Stephanus Daniel Handoko, Chee Keong Kwoh, Yew-Soo...