|
|
|
| Spectral Clustering Algorithm with Application to Outlier Detection |
| Qingsheng Zhu, Peng Yang |
|
|
|
|
Abstract Recently, spectral clustering has wide application in image segmentation and data mining because it can obtain global optimal solution and adapt to dataset with any shape. In this paper, we propose a new spectral clustering algorithm which takes the number of neighborhoods shared by the objects as the similarity measure to construct a spectral graph. It can help to construct a sparse matrix whose first eigenvectors can be easily computed by Lanczos method. The algorithm can produce stable clusters and outperforms traditional algorithms through subspace formed by these eigenvectors. Furthermore, an outlier detection algorithm based on the spectral clustering method is presented. It defines a simple but effective local outlier factor for each object in the clusters and in turn mines the top n outliers with the largest factors. Experimental results demonstrate that our outlier detection algorithm based on spectral clustering can achieve high precision rate with lower false alarm rate comparing with KNN and LOF.
|
|
|
|
|
|
| [1] |
Lingxiao Ma;Yi Li;Hancong Tang;Weilai Chi;Depeng Dang. Parallel Chameleon Clustering Based on MapReduce[J]. , 2015, 12(6): 2053-2062. |
| [2] |
Jun Chen;Zhengyang Luo;Chengying Gao. An Improved Hole-filling Technology Based on MLS[J]. , 2015, 12(6): 2063-2072. |
| [3] |
Weixin Xie;Hongbin Huang;Haotian Zhai;Weiping Liu. Features Extraction and Classification of Rice Paper Images Based on Wavelet Transform[J]. , 2015, 12(6): 2073-2079. |
| [4] |
Yehong Du;He Cui;Bing Li;Jie Li. Research on Regional Coverage with LAVs Based on MOPSOA[J]. , 2015, 12(6): 2081-2092. |
| [5] |
Xiaojian You;Xiaohai He;Xuemei Han;Chun Wu;Hong Jiang. A Novel Cognitive Radio Decision Engine Based on Chaotic Quantum Bee Colony Algorithm[J]. , 2015, 12(6): 2093-2106. |
| [6] |
Yao Fan;Yanli Chu. pplication of Improved ART Algorithm in Concrete Ultrasonic Imaging[J]. , 2015, 12(6): 2107-2116. |
| [7] |
Lun Xie;Xin Liu;Zhiliang Wang. Micro-expression Cognition and Emotion Modeling Based on Gross Reappraisal Strategy[J]. , 2015, 12(6): 2117-2132. |
| [8] |
Xiaoxue Guo;Haosen Lin. Remain Resource Reallocation DRA Algorithm with Multiple QoS Parameters Constraint[J]. , 2015, 12(6): 2133-2141. |
| [9] |
Zhiwei Ni;Xuhui Zhu;Liping Ni;Meiying Cheng;Yiling Wang. An Improved Discrete Optimization Algorithm Based on Artificial Fish Swarm and Its Application for Attribute Reduction[J]. , 2015, 12(6): 2143-2154. |
| [10] |
Siyuan Liu;Meng Wang;Haosong Hu. A Method and Application of Signal Demodulation Based on Wavelet Packet and Wavelet Ridge Decomposition[J]. , 2015, 12(6): 2155-2164. |
| [11] |
Yuan Xi;Kai Cheng;Tao Xiao;Xitong Lou;Lei Cheng;Yanjuan Hu. Parametric Design of Reverse Blowing Pickup Mouth Based on Flow Simulation[J]. , 2015, 12(6): 2165-2175. |
| [12] |
Hui Zhang;Peng Zhao;Jian Gao;Chengxiang Zhuge;Xiangming Yao. An Effective Intelligent Method for Optimal Urban Transit Network Design[J]. , 2015, 12(6): 2177-2184. |
| [13] |
Xin Wang;Fulian Yin;Jianping Chai;Xinran Wang. The Research of Broadcast Television Community Discovery Technology Based on Double-weight Gaussian Kernel Similarity[J]. , 2015, 12(6): 2185-2196. |
| [14] |
Yanli Huang;Beibei Xu;Xiaoliang Li. Properties of Rational General Solutions for First Order Multivariate Autonomous Rational Differential Systems[J]. , 2015, 12(6): 2197-2204. |
| [15] |
Jianli Feng;Xiaomin Zhang. An Identification Algorithm of Passive Millimeter Wave Detection Armored Targets Based on Signal Complexity[J]. , 2015, 12(6): 2205-2212. |
|
|
|
|
