用集合近似邻域为手段，研究了知识论域拓扑空间，得出了一些重要结论。
The knowledge universe topology Spaces are studied by set approximate neighbourhood, and many important conclusions are achieved.
本文主要探讨了基于模糊集合理论的不确定知识表示和近似推理方法。
The main issues addressed are uncertain knowledge representation and approximate reasoning based on fuzzy set theory.
提出了集合覆盖问题的一种随机近似算法。
This thesis proposes a randomized approximation algorithm for the Set Cover problem.
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