Learning a Distance Metric for Structured Network Prediction

Posted in Science on September 07, 2008


Learning a Distance Metric for Structured Network Prediction

Man-made or naturally-formed networks typically exhibit a high degree of structural regularity. In this paper, we introduce the problem of structured network prediction: given a set of n entities and a desired distribution for connectivity, return a likely set of edges connecting the entities together in a network having the specified degree distribution. Prediction is useful for initializing a network, augmenting an existing network, and for filtering existing networks, when the structure of the network is known. In order to capture the inter-dependencies amongst pairwise predictions to learn parameters of our model, we build upon recent structured output models. Novel in our approach is the use of partially labeled training examples, and a network structure sensitive loss function. We present encouraging results of the model predicting equivalence graphs and links in a social network.

Author: Stuart Andrews, Columbia University

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Tags: Science, Lectures, Computer Science, Machine Learning, VideoLectures.Net, Network Analysis, Structured Output