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摘要：
1015. Reversible Primes (20) A reversible prime in any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a reversible prime because its reverse 37 is also a prime. Now given any two positive integers N (#include... 阅读全文
摘要：
The Sequential Minimal Optimization Algorithm (SMO)本文主要介绍用于解决SVM对偶模型的算法，它于1998年由John Platt在论文“Sequential Minimal Optimization:A Fast Algorithm for Training Support Vector Machines”中提出的。这篇笔记还参考了某篇博客，但由于是一年前的事了，暂时没找到这篇博客，所以没有引用出来，希望该篇博客的主人见谅。（1）解决的问题。 SMO 算法解决的是 soft SVM 对偶问题。其模型为：\begin{align}\matho. 阅读全文
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