Finding an optimal scheduling for such an environment is a NP-hard problem, and so heuristic approaches must be used in general to get an optimal approximation solution.
由于在这样的环境中找到一个最优的调度是一个NP难问题，通常运用各种启发式算法来找到近似最优解。
This is a simple idea but surprisingly rare in today's computer field, where heuristic (meaning "educated guess") approaches seem to be favored.
这是一个简单的思想，但令人吃惊的是，在如今的计算机领域中却很少被提及，这个领域喜欢采用启发式(即“教育猜想”)方法。
The two approaches, based on Bootstrap and heuristic algorithms, were proposed for developing source number detection methods.
给出了两种利用这种特征向量空时投影的信源数检测方法。
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