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    ECCC
    2006
    112views more  ECCC 2006»
    Faster algorithms for finding lowest common ancestors in directed acyclic graphs
    14 years 11 months ago
    Faster algorithms for finding lowest common ancestors in directed acyclic graphs
    Download  www.dcs.warwick.ac.uk
    We present two new methods for finding a lowest common ancestor (LCA) for each pair of vertices of a directed acyclic graph (dag) on n vertices and m edges. The first method is su...
    Artur Czumaj, Miroslaw Kowaluk, Andrzej Lingas
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    IPL
    2006
    97views more  IPL 2006»
    A fixed-parameter tractability result for multicommodity demand flow in trees
    14 years 11 months ago
    A fixed-parameter tractability result for multicommodity demand flow in trees
    Download  theinf1.informatik.uni-jena.de
    We study an NP-hard (and MaxSNP-hard) problem in trees--Multicommodity Demand Flow--dealing with demand flows between pairs of nodes and trying to maximize the value of the routed...
    Jiong Guo, Rolf Niedermeier
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    SIGMOD
    2009
    ACM
    161views Database» more  SIGMOD 2009»
    Dependency-aware reordering for parallelizing query optimization in multi-core CPUs
    15 years 6 months ago
    Dependency-aware reordering for parallelizing query optimization in multi-core CPUs
    Download  rosaec.snu.ac.kr
    The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
    Wook-Shin Han, Jinsoo Lee
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    EMNLP
    2008
    140views Natural Language Processing» more  EMNLP 2008»
    Phrase Translation Probabilities with ITG Priors and Smoothing as Learning Objective
    15 years 22 days ago
    Phrase Translation Probabilities with ITG Priors and Smoothing as Learning Objective
    Download  staff.science.uva.nl
    The conditional phrase translation probabilities constitute the principal components of phrase-based machine translation systems. These probabilities are estimated using a heurist...
    Markos Mylonakis, Khalil Sima'an
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    CVPR
    2009
    IEEE
    843views Computer Vision» more  CVPR 2009»
    A Graph-based Approach to Skin Mole Matching Incorporating Template-Normalized Coordinates
    16 years 5 months ago
    A Graph-based Approach to Skin Mole Matching Incorporating Template-Normalized Coordinates
    Download  www.cs.sfu.ca
    Density of moles is a strong predictor of malignant melanoma. Some dermatologists advocate periodic fullbody scan for high-risk patients. In current practice, physicians compare...
    Ghassan Hamarneh, Hengameh Mirzaalian, Tim K. Lee
    posted by Hengameh
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