Many controlled queueing systems possess simple index-type optimal policies, when discounted, average or finite-time cost criteria are considered. This structural results makes the computation of optimal policies relatively simple. Unfortunately, for constrained optimization problems, the index structure of the optimal policies is in general not preserved. As a result, computing optimal policie...

Feature selection is an important preprocessing step in mining high-dimensional data. Generally, supervised feature selection methods with supervision information are superior to unsupervised ones without supervision information. In the literature, nearly all existing supervised feature selection methods use class labels as supervision information. In this paper, we propose to use another form ...