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Lecture 2 Supervised learning: regression, classification, ... Unsupervised learning: clustering, dimensionality reduction, ... The canonical machine 阅读全文
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前提情要:博主写这篇博客仅仅是为了加深对知识点的印象,如果读者仅仅是为了了解抽代学习内容的话建议出门左拐魏老师的 https://www.cnblogs.com/alex-wei/p/18194469/Abstract_Algebra_Ring_Theory, 因为本博客在创作过程中很大程度上借鉴了 阅读全文
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Ring Theory 4.8 Definition: A ring is a set together with two binary operation together with "" and "", obeying: is an Abelian group. is assoc 阅读全文
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谨以此文,悼念我炸裂的危寄分欸二期中考试。下次不仅要带一个脑子做题,还得带一个脑子盯着它做题,不然第一个脑子容易跑偏刹不住车。得去黑市看一眼最近脑子市价如何,如果太贵还得卖点东西凑一凑。 1. 群 1.1 群的定义 群,是一个由一个集合 和一种 上的二元运算 \(\times 阅读全文
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Group Theory 2.26 Definition. A group is an ordered pair , such that: Exists an identity , s.t. for \(\ 阅读全文