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0111 · Dec 201319922001200920182026
8 results for sub-trees

Nowadays, data are generated massively and rapidly from scientific fields as bioinformatics, neuroscience and astronomy to business and engineering fields. Cluster analysis, as one of the major data analysis tools, is therefore more significant than ever. We propose in this work an effective Semi-supervised Divisive Cl…

2014-12-24abs ↗pdf ↗

New algorithm avoids re-planning in tree-search algorithms, reducing suboptimal actions.

problem Avoiding re-planning in tree-search algorithms to reduce suboptimal actions.
method A new algorithm that decides at each step whether to re-plan or use a sub-tree, based on sub-tree statistics.
result The probability of selecting a suboptimal action converges to zero and decays logarithmically.

Nonparametric estimation of the conditional distribution of a response given high-dimensional features is a challenging problem. It is important to allow not only the mean but also the variance and shape of the response density to change flexibly with features, which are massive-dimensional. We propose a multiscale dic…

2013-12-04abs ↗pdf ↗