BIRCH: an efficient data clustering method for very large databases
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Extensions to the k-Means Algorithm for Clustering Large Data Sets with Categorical Values
Data Mining and Knowledge Discovery
Discovering cluster-based local outliers
Pattern Recognition Letters
A clustering-based method for unsupervised intrusion detections
Pattern Recognition Letters
An overview of anomaly detection techniques: Existing solutions and latest technological trends
Computer Networks: The International Journal of Computer and Telecommunications Networking
A fast greedy algorithm for outlier mining
PAKDD'06 Proceedings of the 10th Pacific-Asia conference on Advances in Knowledge Discovery and Data Mining
Visual interactive evolutionary algorithm for high dimensional data clustering and outlier detection
PAKDD'05 Proceedings of the 9th Pacific-Asia conference on Advances in Knowledge Discovery and Data Mining
An optimization model for outlier detection in categorical data
ICIC'05 Proceedings of the 2005 international conference on Advances in Intelligent Computing - Volume Part I
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Outlier detection is an important branch in data mining field. It provides new methods for analyzing all kinds of massive, complex data with noise. In this paper, an outlier detection algorithm is presented by introducing the arbitrary shape clustering approach and discussing the concept of abnormal cluster. The algorithm firstly partitions the dataset into several clusters by proposed clustering approach. Outliers are then detected from the cluster set according to the abnormal cluster concept. Moreover, by introducing inter-cluster dissimilarity measure, the proposed algorithm gains a good performance on the mixed data. The experimental results on the real-life datasets show our approach outperform the existing methods on identifying meaningful and interesting outliers.