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- W2078783412 abstract "Assessing the significance of data mining results is an important step in the knowledge discovery process. While results might appear interesting at a first glance, they can often be explained by already known characteristics of the data. Randomization is an established technique for significance testing, and methods to assess data mining results on vector data or network data have been proposed. In many applications, however, both sources are simultaneously given. Since these sources are rarely independent of each other but highly correlated, naively applying existing randomization methods on each source separately is questionable. In this work, we present a method to assess the significance of mining results on graphs with binary features vectors. We propose a novel null model that preserves correlation information between both sources. Our randomization exploits an adaptive Metropolis sampling and interweaves attribute randomization and graph randomization steps. In thorough experiments, we demonstrate the application of our technique. Our results indicate that while simultaneously using both sources is beneficial, often one source of information is dominant for determining the mining results." @default.
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- W2078783412 date "2012-12-01" @default.
- W2078783412 modified "2023-09-23" @default.
- W2078783412 title "Assessing the Significance of Data Mining Results on Graphs with Feature Vectors" @default.
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- W2078783412 doi "https://doi.org/10.1109/icdm.2012.70" @default.
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