脑洞的分析与证明

摘要： In computational science, particle swarm optimization (PSO)[1] is a computational method that optimizes a problem by iteratively trying to improve a c 阅读全文

摘要： Abstract— Having dealt with a very basic local sensing based path finding algorithm -tangent bug - in the first homework, we will focus on again a ver 阅读全文

摘要： ref: https://github.com/libspatialindex/libspatialindex/wiki/1.-Getting-Started install homeberw brew install curl brew install make brew install gcc 阅读全文

摘要： Constructing GLMs Ordinary Least Squares Ordinary least squares is a special case of the GLM family of models, consider the setting where the target v 阅读全文

摘要： Generalized Linear Models In the regression problem, we had y|x;θ ~ N(μ, σ2), and in the classification one, y|x;θ ~ Bernoulli(Φ), for some appropriat 阅读全文

摘要： Logistic Regression We can approach the classfication problem ignoring the fact that y is discrete-valued, and use old linear regression algorithm to 阅读全文

摘要： the process of supervised learning given dataset with labels then learn the hypothesis/predict function h: x->y through learning algorithm. When the t 阅读全文

摘要： Stanford Link Definition Arthur Samuel: Machine Learing is the field of study that gives the computer the ablility to learn with out being explicitly 阅读全文

摘要： References: 1.Automatic watermark detection and removal 2.矩阵求导解最小二乘问题 3.IRLS WIKI Encyclopedia 4.Image Gradient WIKI 5.OpenCV Image Gradients 6.矩阵求导 接 阅读全文

摘要： 把自己的知乎答案搬来了 从多粒度树的角度着手理解。 在多粒度封锁中，若对一个节点加锁（X、S），意味着这个点的后裔节点也被加以同样的锁。若对一个节点加意向锁，则说明正在对其子节点加（对应的）锁（可理解为一个事务中的先后次序）。任意节点加（X,S)锁时，必须对其所有上级节点加意向锁。多粒度封锁的加锁顺 阅读全文