Progressive Neural Network  Google DeepMind 摘要:学习去解决任务的复杂序列 --- 结合 transfer (迁移),并且避免 catastrophic forgetting (灾难性遗忘) --- 对于达到 human-level intelligence 仍然是一个关键性的难题.本文提出的 progressive networks approach 朝这个方向迈了一大步:他们对 forgetting 免疫,并且可以结合 prior knowledg…
3.Spark MLlib Deep Learning Convolution Neural Network (深度学习-卷积神经网络)3.1 http://blog.csdn.net/sunbow0 Spark MLlib Deep Learning工具箱,是依据现有深度学习教程<UFLDL教程>中的算法.在SparkMLlib中的实现.详细Spark MLlib Deep Learning(深度学习)文件夹结构: 第一章Neural Net(NN) 1.源代码 2.源代码解析 3.实例 第…
A Neural Network in 11 lines of Python A bare bones neural network implementation to describe the inner workings of backpropagation. Posted by iamtrask on July 12, 2015 Summary: I learn best with toy code that I can play with. This tutorial teaches b…
整理自Andrew Ng的machine learning 课程 week5. 目录: Neural network and classification Cost function Backpropagation (to minimize cost function) Backpropagation in practice Gradient checking Random initialization Assure structure and Train a neural network 前提…
Deep Neural Network for Image Classification: Application 预先实现的代码,保存在本地 dnn_app_utils_v3.py import numpy as np import matplotlib.pyplot as plt import h5py def sigmoid(Z): """ Implements the sigmoid activation in numpy Arguments: Z -- numpy…
Building your Deep Neural Network: Step by Step 你将使用下面函数来构建一个深层神经网络来实现图像分类. 使用像relu这的非线性单元来改进你的模型 构建一个多隐藏层的神经网络(有超过一个隐藏层) 符号说明: 1 - Packages(导入的包) numpy:进行科学计算的包 matplotlib :绘图包 dnn_utils:提供一些必要功能 testCases 提供一些测试用例来评估函数的正确性 np.random.seed(1) 设置随机数种子…
Deep Neural Network - Application Congratulations! Welcome to the fourth programming exercise of the deep learning specialization. You will now use everything you have learned to build a deep neural network that classifies cat vs. non-cat images. In…
Building your Deep Neural Network: Step by Step Welcome to your third programming exercise of the deep learning specialization. You will implement all the building blocks of a neural network and use these building blocks in the next assignment to bui…
1. Feedforward and cost function; 2.Regularized cost function: 3.Sigmoid gradient The gradient for the sigmoid function can be computed as: where: 4.Random initialization randInitializeWeights.m function W = randInitializeWeights(L_in, L_out) %RANDIN…