This cheat sheet is a condensed version of machine learning manual, which contains many classical equations and diagrams on machine learning, and aims to help you quickly recall knowledge and ideas in machine learning. This cheat sheet has two significant 1. Clearer symbols. Mathematical formulas use quite a lot of confusing symbols. For example, X can be a set, a random variable, or a matrix. This is very confusing and makes it very difficult for readers to understand the meaning of math formulas. This cheat sheet tries to standardize the usage of symbols, and all symbols are clearly pre-defined, see section §. 2. Less thinking jumps. In many machine learning books, authors omit some intermediary steps of a mathematical proof process, which may save some space but causes difficulty for readers to understand this formula and readers get lost in the middle way of the derivation process. This cheat sheet tries to keep important intermediary steps as where as possible.
Zhang Wei (simplified Chinese: 张炜; traditional Chinese: 張煒; pinyin: Zhāng Wěi; born November 1955) is a Chinese author. He was born in China's northern province of Shandong. He graduated from the Chinese Department at Yantai Normal College in 1980. Three years later, he became a member of Chinese Writers Association, an organization for which he has served as chairman and deputy chairman of the Shandong branch. He is best known for his novels The Ancient Ship and September's Fable. In 2011 Zhang won the Mao Dun Literature Prize, the highest national literary award, for On the Plateau, a 10-volume work that took a decade to write.