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- W1656240941 abstract "We develop a generalized optimization framework for graph-based semi-supervised learning. The framework gives as particular cases the Standard Laplacian, Normalized Laplacian and PageRank based methods. We have also provided new probabilistic interpretation based on random walks and characterized the limiting behaviour of the methods. The random walk based interpretation allows us to explain di erences between the performances of methods with di erent smoothing kernels. It appears that the PageRank based method is robust with respect to the choice of the regularization parameter and the labelled data. We illustrate our theoretical results with two realistic datasets, characterizing di erent challenges: Les Miserables characters social network and Wikipedia hyper-link graph. The graph-based semi-supervised learning classi- es the Wikipedia articles with very good precision and perfect recall employing only the information about the hyper-text links." @default.
- W1656240941 created "2016-06-24" @default.
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- W1656240941 date "2012-04-26" @default.
- W1656240941 modified "2023-10-18" @default.
- W1656240941 title "Generalized Optimization Framework for Graph-based Semi-supervised Learning" @default.
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- W1656240941 doi "https://doi.org/10.1137/1.9781611972825.83" @default.
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