... number of objects of interest and|·|indicatesthe number of elements in a set. The termYkindicatesthe “ground truth” set of observations of object k,andYkis the set of observations of object ... probability of the label k, μkand σkare mean andvariance of appearance of object k. In E-step, based onthe old guess of the model parameters Θold,wecalculatethe ownership probability of each ... 2011, Article ID 176026, 25 pagesdoi:10.1155/2011/176026 Research Article Efficient Data Association in Visual Sensor Networks withMissing DetectionJiuqing Wan and Qing yun LiuDepartment of Automation,...