Titlebook: New Developments in Unsupervised Outlier Detection; Algorithms and Appli Xiaochun Wang,Xiali Wang,Mitch Wilkes Book 2021 Xi‘an Jiaotong Uni

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A ,-Nearest Neighbor Centroid-Based Outlier Detection Methodmeasuring the degree of deviation for outlier ranking, there have been well-established methods among which .-nearest neighbor-based approaches have become more and more popular. However, most .-nearest neighbor-based methods have a shortcoming in parameter detection. That is, they are very sensitiv

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A ,-Nearest Neighbour Spectral Clustering-Based Outlier Detection Techniquetection, discovery of criminal activities in electronic commerce, and so on. Many models have been developed for outlier detection, including probabilistic models, distance-based models, density-based models, and clustering models. These models extract various indicators (e.g., frequencies of certai

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Overview and Contributionseighbor-based perspective. In this chapter, an overview of this book is presented. First, the research issues on unsupervised outlier detection are introduced. Then, the content for each chapter is described. Finally, a summary of our contributions is presented.

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Book 2021p between k-nearest neighbor-based outlier detection and clustering-based outlier detection, laying the groundwork for future advances in unsupervised outlier detection research..The authors hope the algorithms and applications proposed here will serve as valuable resources for outlier detection researchers for years to come..