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什么是计算思维?Computational thinking is a way of solving problems, designing systems, and understanding human behavior that draws on concepts fundamental to... 阅读全文
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A geometrical view of perceptron 感知器的几何视图Weight-space 权值空间在这个空间中,每一个感知器中的权值都表示一维,而空间中的一点则代表了所有权值的特定集合,假设消除阈值,则每个训练样本都可以看做通过起点的超平面。So, points in the sp... 阅读全文
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An overview of the main types of neuralnetwork architecture 神经网络结构的主要类型什么是神经网络的结构?神经网络中神经元的组织方式。1. 目前应用领域中最常用的结构类型是feet-forward 神经网络, 信息来自输入单元,并且以一个方向... 阅读全文
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机器学习的三种类型监督学习,加强学习和非监督学习Types of learning task• Supervised learning– Learn to predict an output when given an input vector.• Reinforcement learning– L... 阅读全文
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机器学习的一个简单例子It is a very simple kind of NeuralNet and it is gonna be learning to recognize digits and you gonna be able to see how the weights evolveda... 阅读全文
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神经元的简单模型Idealized neurons• To model things we have to idealize them (e.g. atoms)– Idealization removes complicated details that are not essentialfor u... 阅读全文
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什么是神经网络?大脑如何工作?Each neuron receives inputs from other neurons 每个神经元接收其他神经元的输入- A few neurons also connect to receptors. 一些神经元连接到神经末梢- Cortical neurons... 阅读全文
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本系列博客根据Geoffrey Hinton课程Neural Network for Machine Learning总结. 课程网址为:https://www.coursera.org/course/neuralnets1、Some examples of tasks best solved by... 阅读全文