نتایج جستجو برای: network sampling

تعداد نتایج: 872304  

Journal: :Signal Processing 2016
Meng Fang Jie Yin Xingquan Zhu

Traditional graph sampling methods reduce the size of a large network via uniform sampling of nodes from the original network. The sampled network can be used to estimate the topological properties of the original network. However, in some application domains (e.g., disease surveillance), the goal of sampling is also to help identify a specified category of nodes (e.g., affected individuals) in...

2012
Karel Bartos Martin Rehák

With increasing amount of network traffic, sampling techniques have become widely employed allowing monitoring and analysis of high-speed network links. Despite of all benefits, sampling methods negatively influence the accuracy of anomaly detection techniques and other subsequent processing. In this paper, we present an adaptive, featureaware sampling technique that reduces the loss of informa...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2005
Michael P H Stumpf Carsten Wiuf

We discuss two sampling schemes for selecting random subnets from a network, random sampling and connectivity dependent sampling, and investigate how the degree distribution of a node in the network is affected by the two types of sampling. Here we derive a necessary and sufficient condition that guarantees that the degree distributions of the subnet and the true network belong to the same fami...

Journal: :journal of advances in computer research 0
moshood a. hambali computer science dept., federal university wukari, nigeria morufat d. gbolagade computer science dept., al-hikmah university, ilorin, nigeria

every woman is at risk of ovarian cancer; about 90 percent of women who develop ovarian cancer are above 40 years of age, with the high number of ovarian cancers occurring at the age of 60 years and above. early and correct diagnosis of ovarian cancer can allow proper treatment and as a result reduce the mortality rate. in this paper, we proposed a hybrid of synthetic minority over-sampling tec...

Journal: :Journal of the Royal Statistical Society: Series A (Statistics in Society) 2015

Journal: :Mathematics of Operations Research 1999

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