Supervised Rank Aggregation for Predicting Influence in Networks

Details Supervised Rank Aggregation for Predicting Influence in Networks Supervised Rank Aggregation for Predicting Influence in Networks

2011-08-24

arxiv.org/abs/1108.4801v1

Computer Science

Social and Information Networks

Scientific paper

Much work in Social Network Analysis has focused on the identification of the most important actors in a social network. This has resulted in several measures of influence and authority. While most of such sociometrics (e.g., PageRank) are driven by intuitions based on an actors location in a network, asking for the "most influential" actors in itself is an ill-posed question, unless it is put in context with a specific measurable task. Constructing a predictive task of interest in a given domain provides a mechanism to quantitatively compare different measures of influence. Furthermore, when we know what type of actionable insight to gather, we need not rely on a single network centrality measure. A combination of measures is more likely to capture various aspects of the social network that are predictive and beneficial for the task. Towards this end, we propose an approach to supervised rank aggregation, driven by techniques from Social Choice Theory. We illustrate the effectiveness of this method through experiments on Twitter and citation networks.

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