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FSTTCS
2005
Springer
15 years 8 months ago
The Directed Planar Reachability Problem
We investigate the s-t-connectivity problem for directed planar graphs, which is hard for L and is contained in NL but is not known to be complete. We show that this problem is log...
Eric Allender, Samir Datta, Sambuddha Roy
COSIT
2007
Springer
85views GIS» more  COSIT 2007»
15 years 8 months ago
Linguistic and Nonlinguistic Turn Direction Concepts
This paper discusses the conceptualization of turn directions along traveled routes. Foremost, we are interested in the influence that language has on the conceptualization of turn...
Alexander Klippel, Daniel R. Montello
VTC
2006
IEEE
121views Communications» more  VTC 2006»
15 years 8 months ago
Location-Dependent Parameterization of a Random Direction Mobility Model
— Mobility models are widely used in simulation-based performance analyses of mobile networks. However, there is a trade-off between simplicity and realistic movement patterns. S...
Bernd Gloss, Michael Scharf, Daniel Neubauer
KDD
1998
ACM
250views Data Mining» more  KDD 1998»
15 years 6 months ago
Data Mining for Direct Marketing: Problems and Solutions
Direct marketing is a process of identifying likely buyers of certain products and promoting the products accordingly. It is increasingly used by banks, insurance companies, and t...
Charles X. Ling, Chenghui Li
78
Voted
PR
2006
65views more  PR 2006»
15 years 2 months ago
Why direct LDA is not equivalent to LDA
In this paper, we present counterarguments against the direct LDA algorithm (D-LDA), which was previously claimed to be equivalent to Linear Discriminant Analysis (LDA). We show f...
Hui Gao, James W. Davis