نتایج جستجو برای: a cluster sampling

تعداد نتایج: 13494356  

2013
Mohamed Abouelenien Xiaohui Yuan Balathasan Giritharan Jianguo Liu Shoujiang Tang

We present a cluster-based sampling and ensemble method to learn from large, imbalanced data set for bleeding detection in CE videos. Our method selects training examples randomly according to the data distributions derived from clustering. Multiple training sets are created such that data balance is restored. The sampling probability is proportional to the cluster distribution, and within each...

Journal: :Building and Environment 2023

Sensors are an increasingly widespread tool for monitoring utility usage (e.g., electricity) and environmental data temperature). In large-scale projects, it is often impractical sometimes impossible to place sensors at all sites of interest, example due limited sensor numbers or access. We test whether cluster analysis can be used address this problem. create clusters potential using factors t...

Journal: :Communications in Statistics - Theory and Methods 1989

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