文卡塔萨布拉曼尼亚的理论的一个重要意义是重新诠释了熵，熵本来用于科学地测量热力学的无序性和信息理论的不确定性。
A key idea in Venkatasubramanian's theory is a new interpretation of entropy, used in science to measure disorder in thermodynamics and uncertainty in information theory.
全文的主要内容如下：针对粗糙集中存在的不确定性和模糊性，提出了新的熵测量方法。
The main contents of the dissertation are as follows: the entropy methods to measure the uncertainty and the fuzziness in rough sets are proposed.
这些不确定性信息或是随机性的、或是模糊性的、或是复合不确定性，可分别用概率熵、模糊熵和混合熵来度量。
The uncertain information may be probable, or fuzzy, or have compound uncertainty, and can be measured respectively with probability entropy, fuzzy entropy and hybrid entropy.
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