Spectral segmentation algorithms can extract the global impression of an image and be widely used in many areas and applications related to image segmentation. Traditional spectral algorithms need to construct an affi...
详细信息
The process of feature point detection is the first stage of many computer vision applications including object detection, recognition andreconstruction. Aimed at the drawbacks (e.g. inefficiency and poorrotation in...
详细信息
Network virtualization has been a particularly important driving force behind the development of NGN. Finding effective ways to control self-adapting virtual networks has become a research hot spot. This paper tries t...
详细信息
Network virtualization has been a particularly important driving force behind the development of NGN. Finding effective ways to control self-adapting virtual networks has become a research hot spot. This paper tries to find an efficient way in combining dynamic resource sensing with traffic character andrequirements in virtual network, based on that an intelligent cognition based virtual network resources management model has been put forward. We design a network topology view by coloring network topology matrix with current resources model. We present an intelligent virtual resource management mechanism based on the proposed network topology view. Experiment results illustrate that the proposed mechanism can improve VN capacity by automatic resource adjustment, which can obtain high utilization of VN resources without increasing computational expenses.
To remove the noise and interference signals in the blinddetection of FH signals from HF channel, this paper gives a FH signals extraction method based on the improved symmetric GLCM, by combining the time-frequency ...
详细信息
The thinking of signal-to-leakage-plus-noise ratio (SLNr) is widely used for multi-user multiple-input multiple-output (MU-MIMO) systems in many works. We analyze the secrecy performance of the SLNr-based beamforming ...
详细信息
ISBN:
(纸本)9781467376884
The thinking of signal-to-leakage-plus-noise ratio (SLNr) is widely used for multi-user multiple-input multiple-output (MU-MIMO) systems in many works. We analyze the secrecy performance of the SLNr-based beamforming scheme in the multiple-input single-output multi-antenna eavesdropper (MISÓME) wiretap channel. Our analysis proofs the SLNr-based beamforming scheme has almost the same performance as the generalized eigenvalue decomposition (GEd) based beamforming scheme, and has significant gain over the zero-forcing (ZF) beamforming scheme.
For the problem that traditional approaches for IP geolocation based on delay measurement are difficult to apply to network with weak connectivity such as China's Internet, in this paper, we utilize its hierarchic...
详细信息
For the problem that traditional approaches for IP geolocation based on delay measurement are difficult to apply to network with weak connectivity such as China's Internet, in this paper, we utilize its hierarchical topology and proposed an approach of City-level geolocation based on routing feature. Taking IPs with known geographical location as reference nodes, this approach extracts identifying IPs of candidate regions or cities based on decision tree learning algorithm. We match the path of the target with IPs above called identifying features, and then select the region or city whose identifying feature is contained on the target's path as geolocation result. This approach improves the average accuracy for the Internet with weak connectivity hierarchical topology to 93% vs. 73% for the previous learning-based geolocation approach.
The first several packets of a flow play key role in the on-line traffic managements. Early traffic sampling, extracting the first several packets of every flow, is raised. This paper proposes a structure named CTBF, ...
详细信息
Traffic classification, one of the most active fields in Internet traffic research, is the substructure of network design and management. Generally, there are four techniques to identify the traffic, port-based, paylo...
详细信息
It is very easy for the nodes in Nameddata Networking to ignore the neighbor nodes. To solve this issue, this paper proposes a leading routing mechanism for neighbor content store. Firstly, through building the inter...
详细信息
Current studies on complex networks are mainly concentrated on some specific properties of the complex network. In view of the lack of universal analysis model, a universal complex network model with limiteddegree is...
详细信息
暂无评论