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The smallest eigenvalues and the associated eigenvectors (i.e., eigenpairs) of a graph Laplacian matrix have been widely used for spectral clustering and community detection. However, in real-life applications, the number of clusters or communities (say, K) is generally unknown a priori....
Inferring latent attributes (e.g., demographics) of social media users is important to improve the accuracy and validity of social media analysis methods. While most existing approaches use either heuristics or supervised classification, recent work has shown that accurate classification models...
Social media analysis is a fast growing research area aimed at extracting useful information from social networks. Recent years have seen a great interest from academic and business world in using social media to measure public opinion. This paper presents a methodology aimed at discovering the...
The Shapley value (Shapley in Ann Math Stud 2:28, 1953) is one of the most prominent one-point solution concepts in cooperative game theory that divides revenues (or cost, power) that can be obtained by cooperation of players in the game. The Shapley value is mathematically characterized by...
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