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Extracting Hidden Information from Knowledge Networks

Sergei Maslov·Yi-Cheng Zhang
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Abstract

We develop a method allowing us to reconstruct individual tastes of customers from a sparsely connected network of their opinions on products, services, or each other. Two distinct phase transitions occur as the density of edges in this network is increased: above the first - macroscopic prediction of tastes becomes possible, while above the second - all unknown opinions can be uniquely reconstructed. We illustrate our ideas using a simple Gaussian model, which we study using both field-theoretical methods and numerical simulations. We point out a potential relevance of our approach to the field of bioinformatics.

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BibTeXRIS

Sergei Maslov, Yi-Cheng Zhang. 2002-01-09. Extracting Hidden Information from Knowledge Networks. https://doi.org/10.1103/physrevlett.87.248701

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