PEST: Term-Propagation over Wiki-Structures as Eigenvector Computation

We present pest, a novel approach to approximate querying of structured wiki data that exploits the structure of that data to propagate term weights between related wiki pages and tags. Based on the pest matrix, eigenvectors representing the distribution of a term after propagation are computed. The result is an index which takes the document structure into account and can be used with standard document retrieval techniques. This article gives a detailed outline of the approach and gives first experimental results showing its viability.

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