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- W1493451373 abstract "Classification is one of the major tasks in knowledge discovery and data mining. Naive Bayes classifier, in spite of its simplicity, has proven surprisingly effective in many practical applications. In real datasets, noise is inevitable, because of the imprecision of measurement or privacy preserving mechanisms. In this paper, we develop a new approach, LinEar-Equation-based noise-aWare bAYes classifier (LEEWAY ), for learning the underlying naive Bayes classifier from noisy observations. Using linear system of equations and optimization methods, LEEWAY reconstructs the underlying probability distributions of the noise-free dataset based on the given noisy observations. By incorporating the noise model into the learning process, we improve the classification accuracy. Furthermore, as an estimate of the underlying naive Bayes classifier for the noise-free dataset, the reconstructed model can be easily combined with new observations that are corrupted at different noise levels to obtain a good predictive accuracy. Several experiments are presented to evaluate the performance of LEEWAY. The experimental results show that LEEWAY is an effective technique to handle noisy data and it provides higher classification accuracy than other traditional approaches. keywords: naive Bayes classifier, noisy data, classification, Bayesian network." @default.
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- W1493451373 date "2003-01-01" @default.
- W1493451373 modified "2023-09-23" @default.
- W1493451373 title "Learning Naive Bayes Classifier from Noisy Data" @default.
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