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Distributed Denial of Service (DDoS) attacks are becoming one of the major threats in the distributed data center networks which are loosely connected. Recent work has found new ways to attack network link instead of network servers. However, existing methods have limitations when detecting the link attacks, particularly in data store. To address this issue, in this paper, we propose an attack detection...
In the past few years, image retrieval has been one of the hot spots in computer vision field. Among many image retrieval techniques, Bag-of, Word (BoW) model is one of the effective and efficient methods that can search images with visual vocabularies and it is insensitive to massive data and various geometric attacks. But the classical BoW algorithm used some descriptors as its visual words, such...
The software defined networking (SDN) allows separating control and data plane, which provides better network management and higher utilization for data center network. Among these topical applications in SDN, such as traffic engineering, QoS and network management, there is significant interest on classifying the flows and predict future traffic. Classification plays an important role in SDN, especially...
In this paper, an improved ant colony optimization based approach for image edge detection is proposed. The algorithm use ant colony clustering approach to extract edge feature. The approach set the heuristics information function and the initial cluster, thus avoiding the search blindness which carried out by traditional ant colony algorithm. And a series of simulation experiments demonstrate the...
With the development of Internet, Information security is becoming more and more important. Traditional cryptographic methods require the user to remember keys, it is not convenient. Biometrics based cryptographic key generation techniques generate cryptographic keys from biometrics directly. In this paper, we propose a biometric cryptosystem based on face biometrics. At encryption stage, a 128-dimensional...
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