Fast Anomaly Detection Algorithm for Hyperspectral Imagery Based on Line-by-line Processing

2017 ◽  
Vol 46 (4) ◽  
pp. 410003 ◽  
Author(s):  
付立婷 FU Li-ting ◽  
邓河 DENG He ◽  
刘春红 LIU Chun-hong
2013 ◽  
Vol 6 (3) ◽  
pp. 325-331
Author(s):  
杜小平 DU Xiao-ping ◽  
刘明 LIU Ming ◽  
夏鲁瑞 XIA Lu-rui ◽  
陈杭 CHEN Hang

2011 ◽  
Vol 121-126 ◽  
pp. 720-724
Author(s):  
Liang Liang Wang ◽  
Zhi Yong Li ◽  
Ji Xiang Sun

The local linear embedding algorithm(LLE) is applied into the anomaly detection algorithm on the basis of the feature analysis of the hyperspectral data. Then, to deal with the problem of declining capacity of identifying the neighborhood caused by the Euclidean distance, an improved LLE algorithm is developed. The improved LLE algorithm selects neighborhood pixels according to the spectral gradient, thus making the anomaly detection more robust to the changes of light and terrain. Experimental results prove the feasibility of using LLE algorithm to solve the anomaly detection problem, and the effectiveness of the algorithm in improving the detection performance.


2021 ◽  
Vol 2091 (1) ◽  
pp. 012001
Author(s):  
C Callegari ◽  
S Giordano ◽  
M Pagano

Abstract Thanks to its ability to face unknown attacks, Anomaly-based Intrusion Detection is a key research topic in network security and different statistical methods, fed by suitable traffic features, have been proposed in the literature. The choice of a proper dataset is a critical element not only for performance comparison, but also for the correct identification of the normal traffic behaviour. In this paper we address the general problem of selecting traffic features from recent real traffic traces (MAWI data set) and verify how the real-time constraint impacts on the general performance. Although a state-of-the-art IDS (Intrusion Detection System) based on deep neural networks is considered, our conclusions can be extended to any anomaly detection algorithm and advocate for a fair comparison of IDSs using representative datasets and traffic features that can be extracted on-line (and do not depend on the entire dataset).


2010 ◽  
Vol 39 (12) ◽  
pp. 2224-2228
Author(s):  
蒲晓丰 PU Xiao-feng ◽  
雷武虎 LEI Wu-hu ◽  
黄涛 HUANG Tao ◽  
王迪 WANG Di

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