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PVLDB
2008
126views more  PVLDB 2008»
13 years 9 months ago
Parallelizing query optimization
Many commercial RDBMSs employ cost-based query optimization exploiting dynamic programming (DP) to efficiently generate the optimal query execution plan. However, optimization tim...
Wook-Shin Han, Wooseong Kwak, Jinsoo Lee, Guy M. L...
TAL
2010
Springer
13 years 8 months ago
Concept Based Representations for Ranking in Geographic Information Retrieval
Abstract. Geographic Information Retrieval (GIR) is a specialized Information Retrieval (IR) branch that deals with information related to geographical locations. Traditional IR en...
Maya Carrillo, Esaú Villatoro-Tello, Aureli...
VLDB
2007
ACM
121views Database» more  VLDB 2007»
14 years 10 months ago
Ranked Subsequence Matching in Time-Series Databases
Existing work on similar sequence matching has focused on either whole matching or range subsequence matching. In this paper, we present novel methods for ranked subsequence match...
Wook-Shin Han, Jinsoo Lee, Yang-Sae Moon, Haifeng ...
DATE
2009
IEEE
112views Hardware» more  DATE 2009»
14 years 5 months ago
Package routability- and IR-drop-aware finger/pad assignment in chip-package co-design
—Due to increasing complexity of design interactions between the chip, package and PCB, it is essential to consider them at the same time. Specifically the finger/pad locations...
Chao-Hung Lu, Hung-Ming Chen, Chien-Nan Jimmy Liu,...
SAT
2007
Springer
107views Hardware» more  SAT 2007»
14 years 4 months ago
Combining Adaptive Noise and Look-Ahead in Local Search for SAT
Abstract. The adaptive noise mechanism was introduced in Novelty+ to automatically adapt noise settings during the search [4]. The local search algorithm G2 WSAT deterministically ...
Chu Min Li, Wanxia Wei, Harry Zhang