New methods and algorithms of data mining are provided by extension theory, and the new data mining thoughts are also stimulated by the extension set theory.
而可拓学的建立为数据挖掘提供了新的手段和方法，开辟了新的挖掘算法。
This paper discusses a principal problem in grey mathematical theory, that is grey set and its operation, and proves the decomposition theorem, representation theorem and extension principle.
讨论灰色数学理论的一个基本问题，即灰色集合以及它的有关运算，灰集的分解定理、表现定理和扩张原理。
Mathematical logic is an extension of symbolic logic into other areas, in particular to the study of model theory, proof theory, set theory, and recursion theory.
数理逻辑的延伸符号逻辑到其他领域，特别是研究模型理论，证据理论，集理论，并递归理论。
Mathematical logic is an extension of symbolic logic into other areas, in particular to the study of model theory, proof theory, set theory, and recursion theory.
数理逻辑的延伸符号逻辑到其他领域，特别是研究模型理论，证据理论，集理论，并递归理论。
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