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Formulizing Co-Clusters &Selection Methods Based On SVD in Data Mining - D Kishore Babu

englanti
2018-09-03
43,07 € 57,42 €

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Toimitus 12-18 arkipäivässä

30 päivän palautusoikeus

Traditional clustering and feature selection methods consider the data matrix as static. However, the data matrices evolve smoothly over time in many applications. A simple approach to learn from these time-evolving data matrices is to analyze them separately. Such strategy ignores the time-dependent nature of the underlying data. We propose two formulations for evolutionary co-clustering and feature select ... Täydellinen kuvaus

Kuvaus

Traditional clustering and feature selection methods consider the data matrix as static. However, the data matrices evolve smoothly over time in many applications. A simple approach to learn from these time-evolving data matrices is to analyze them separately. Such strategy ignores the time-dependent nature of the underlying data. We propose two formulations for evolutionary co-clustering and feature selection based on the fused Lasso regularization. The evolutionary co-clustering formulation is able to identify smoothly varying hidden block structures embedded into the matrices along the temporal dimension. Our formulation is very flexible and allows for imposing smoothness constraints over only one dimension of the data matrices. The evolutionary feature selection formulation can uncover shared features in clustering from time-evolving data matrices. We show that the optimization problems involved are non-convex, non-smooth and non-separable. To compute the solutions efficiently, we develop a two-step procedure that optimizes the objective function iteratively.

Lisätietoja

Kirjoittaja D Kishore Babu
Julkaisija LAP LAMBERT Academic Publishing
Julkaisuvuosi 2018
Kannen tyyppi Pehmeäkantinen
EAN 9783659716157
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Arvostelet: Formulizing Co-Clusters &Selection Methods Based On SVD in Data Mining
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43,07 € 57,42 €