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DAC
2005
ACM
14 years 10 months ago
A quasi-convex optimization approach to parameterized model order reduction
In this paper an optimization based model order reduction (MOR) framework is proposed. The method involves setting up a quasiconvex program that explicitly minimizes a relaxation ...
Kin Cheong Sou, Alexandre Megretski, Luca Daniel
CCE
2004
13 years 8 months ago
A decomposition method for synthesizing complex column configurations using tray-by-tray GDP models
This paper describes an optimization procedure for the synthesis of complex distillation configurations. A superstructure based on the Reversible Distillation Sequence Model (RDSM...
Mariana Barttfeld, Pío A. Aguirre, Ignacio ...
WWW
2008
ACM
14 years 9 months ago
Unsupervised query segmentation using generative language models and wikipedia
In this paper, we propose a novel unsupervised approach to query segmentation, an important task in Web search. We use a generative query model to recover a query's underlyin...
Bin Tan, Fuchun Peng
EDBT
2002
ACM
139views Database» more  EDBT 2002»
14 years 9 months ago
Aggregate Processing of Planar Points
Abstract. Aggregate window queries return summarized information about objects that fall inside a query rectangle (e.g., the number of objects instead of their concrete ids). Tradi...
Yufei Tao, Dimitris Papadias, Jun Zhang
ICDE
1998
IEEE
153views Database» more  ICDE 1998»
14 years 10 months ago
Flattening an Object Algebra to Provide Performance
Algebraic transformation and optimization techniques have been the method of choice in relational query execution, but applying them in OODBMS is difficult due to the complexity o...
Peter A. Boncz, Annita N. Wilschut, Martin L. Kers...