Character level language model - Dinosaurus land Welcome to Dinosaurus Island! 65 million years ago, dinosaurs existed, and in this assignment they are back. You are in charge of a special task. Leading biology researchers are creating new breeds of…
Character level language model - Dinosaurus land 为了构建字符级语言模型来生成新的名称,你的模型将学习不同的名字,并随机生成新的名字. 任务清单: 如何存储文本数据,以便使用RNN进行处理. 如何合成数据,通过采样在每个time step预测,并通过下一个RNN-cell unit. 如何构建字符级文本,生成循环神经网络(RNN). 为什么梯度修剪(clipping the gradients)很重要? import numpy as np imp…
Character level language model - Dinosaurus land Welcome to Dinosaurus Island! 65 million years ago, dinosaurs existed, and in this assignment they are back. You are in charge of a special task. Leading biology researchers are creating new breeds of…
Sequence Models This is the fifth and final course of the deep learning specialization at Coursera which is moderated by deeplearning.ai Here are the course summary as its given on the course link: This course will teach you how to build models for n…
About this Course This course will teach you how to build models for natural language, audio, and other sequence data. Thanks to deep learning, sequence algorithms are working far better than just two years ago, and this is enabling numerous exciting…
Neural Machine Translation Welcome to your first programming assignment for this week! You will build a Neural Machine Translation (NMT) model to translate human readable dates ("25th of June, 2009") into machine readable dates ("2009-06-25…
Neural Machine Translation Welcome to your first programming assignment for this week! You will build a Neural Machine Translation (NMT) model to translate human readable dates ("25th of June, 2009") into machine readable dates ("2009-06-25…
Sequence to Sequence models basic sequence-to-sequence model: basic image-to-sequence or called image captioning model: but there are some differences between how you write a model like this to generate a sequence, compared to how you were synthesizi…
2 Natural Language Processing & Word Embeddings 2.1 Word Representation(单词表达) vocabulary,每个单词可以使用1-hot表示,写作\(O^{5391}\)之类,上标可以变.只是用1-hot,不能知道任意两个单词的关系,例如man/woman;king/queen;apple/orange. 特征化表示:词嵌入(Featurized representation:word embedding).一个特征,使用-1到…
Lesson 5 Sequence Models 这篇文章其实是 Coursera 上吴恩达老师的深度学习专业课程的第五门课程的课程笔记. 参考了其他人的笔记继续归纳的. 符号定义 假如我们想要建立一个能够自动识别句中人名地名等位置的序列模型,也就是一个命名实体识别问题,这常用于搜索引擎.命名实体识别系统可以用来查找不同类型的文本中的人名.公司名.时间.地点.国家名和货币名等等. 我们输入语句 "Harry Potter and Herminoe Granger invented a new s…
有哪些sequence model Notation: RNN - Recurrent Neural Network 传统NN 在解决sequence input 时有什么问题? RNN就没有上面的问题. 注意这里还提到了BRNN 双向RNN的概念. 激活函数 g1 经常用的是tanh, 也有用relu的但是不常用 Backpropagation through time Difference types of RNNs Language model and sequence generatio…
Building your Recurrent Neural Network - Step by Step Welcome to Course 5's first assignment! In this assignment, you will implement your first Recurrent Neural Network in numpy. Recurrent Neural Networks (RNN) are very effective for Natural Language…
LSTM’s in Pytorch Example: An LSTM for Part-of-Speech Tagging Exercise: Augmenting the LSTM part-of-speech tagger with character-level features Sequence models are central to NLP: they are models where there is some sort of dependence through time be…
Building your Recurrent Neural Network - Step by Step Welcome to Course 5's first assignment! In this assignment, you will implement your first Recurrent Neural Network in numpy. Recurrent Neural Networks (RNN) are very effective for Natural Language…
1. 基础模型 A. Sequence to sequence model:机器翻译.语音识别.(1. Sutskever et. al., 2014. Sequence to sequence learning with neural networks. 2. Cho et. al., 2014. Learning phrase representations using RNN encoder-decoder for statistical machine translation.) B…
Traditional Language Model通常用于回答下述问题: How likely is a string of English words good English ? \(p_{LM}(\)the house is small\()\ge p_{LM}(\) small the is house\()\) \(p_{LM}(\)I am going home\()\ge p_{LM}(\)I am going house\()\) 生成该句子 \(W=w_1, w_2, w_3…
A Neural Probabilistic Language Model,这篇论文是Begio等人在2003年发表的,可以说是词表示的鼻祖.在这里给出简要的译文 A Neural Probabilistic Language Model 一个神经概率语言模型 摘 要 统计语言模型的一个目标是学习一种语言的单词序列的联合概率函数.因为维数灾难,这是其本质难点:将被模型测试的单词序列很可能是与在训练中见过的所有单词的序列都不相同.传统的但非常成功的基于n-gram的方法通过将出现在训练集很短的重…
[解释] It is appropriate when every input should be matched to an output. [解释] in a language model we try to predict the next step based on the knowledge of all prior steps. [解释] Γu is a vector of dimension equal to the number of hidden units in the LS…
