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» Efficient Algorithms for the 2-Center Problems
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GIS
2006
ACM
14 years 10 months ago
Exploiting a page-level upper bound for multi-type nearest neighbor queries
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...
Xiaobin Ma, Shashi Shekhar, Hui Xiong, Pusheng Zha...
KDD
2009
ACM
215views Data Mining» more  KDD 2009»
14 years 9 months ago
Large-scale sparse logistic regression
Logistic Regression is a well-known classification method that has been used widely in many applications of data mining, machine learning, computer vision, and bioinformatics. Spa...
Jun Liu, Jianhui Chen, Jieping Ye
VLDB
2008
ACM
103views Database» more  VLDB 2008»
14 years 9 months ago
The optimal sequenced route query
Several variations of nearest neighbor (NN) query have been investigated by the database community. However, realworld applications often result in the formulation of new variatio...
Mehdi Sharifzadeh, Mohammad R. Kolahdouzan, Cyrus ...
EDBT
2008
ACM
150views Database» more  EDBT 2008»
14 years 9 months ago
Finding time-dependent shortest paths over large graphs
The spatial and temporal databases have been studied widely and intensively over years. In this paper, we study how to answer queries of finding the best departure time that minim...
Bolin Ding, Jeffrey Xu Yu, Lu Qin
ICCAD
1999
IEEE
86views Hardware» more  ICCAD 1999»
14 years 1 months ago
Clock skew scheduling for improved reliability via quadratic programming
This paper considers the problem of determining an optimal clock skew schedule for a synchronous VLSI circuit. A novel formulation of clock skew scheduling as a constrained quadrat...
Ivan S. Kourtev, Eby G. Friedman