提交 53a6faaf 编写于 作者: G gongweibao

Merge remote-tracking branch 'upstream/develop' into develop

deprecated
*~
pandoc.template
.DS_Store
\ No newline at end of file
- repo: https://github.com/Lucas-C/pre-commit-hooks.git
sha: c25201a00e6b0514370501050cf2a8538ac12270
hooks:
- id: remove-crlf
- repo: https://github.com/reyoung/mirrors-yapf.git
sha: v0.13.2
hooks:
- id: yapf
files: (.*\.(py|bzl)|BUILD|.*\.BUILD|WORKSPACE)$ # Bazel BUILD files follow Python syntax.
- repo: https://github.com/pre-commit/pre-commit-hooks
sha: 7539d8bd1a00a3c1bfd34cdb606d3a6372e83469
sha: v0.7.1
hooks:
- id: check-merge-conflict
- id: check-symlinks
- id: detect-private-key
- id: end-of-file-fixer
files: \.md$
- id: trailing-whitespace
files: \.md$
- repo: git://github.com/Lucas-C/pre-commit-hooks
sha: v1.0.1
hooks:
- id: forbid-crlf
files: \.md$
- id: remove-crlf
files: \.md$
- id: forbid-tabs
files: \.md$
- id: remove-tabs
files: \.md$
- repo: local
hooks:
- id: convert-markdown-into-html
name: convert-markdown-into-html
description: "Convert README.md into index.html and README.en.md into index.en.html"
entry: python pre-commit-hooks/convert_markdown_into_html.py
language: system
files: \.md$
#!/bin/bash
for i in $(du -a | grep '\.\/.\+\/README.md' | cut -f 2); do
.tmpl/convert-markdown-into-html.sh $i > $(dirname $i)/index.html
done
for i in $(du -a | grep '\.\/.\+\/README.en.md' | cut -f 2); do
.tmpl/convert-markdown-into-html.sh $i > $(dirname $i)/index.en.html
done
此差异已折叠。
......@@ -59,9 +59,8 @@ import paddle.v2.dataset.uci_housing as uci_housing
其中,在uci_housing模块中封装了:
1. 数据下载的过程<br>
下载数据保存在~/.cache/paddle/dataset/uci_housing/housing.data<br>
2. [数据预处理](#数据预处理)的过程<br>
1. 数据下载的过程。下载数据保存在~/.cache/paddle/dataset/uci_housing/housing.data。
2. [数据预处理](#数据预处理)的过程。
### 数据集介绍
......@@ -105,25 +104,23 @@ import paddle.v2.dataset.uci_housing as uci_housing
我们将数据集分割为两份:一份用于调整模型的参数,即进行模型的训练,模型在这份数据集上的误差被称为**训练误差**;另外一份被用来测试,模型在这份数据集上的误差被称为**测试误差**。我们训练模型的目的是为了通过从训练数据中找到规律来预测未知的新数据,所以测试误差是更能反映模型表现的指标。分割数据的比例要考虑到两个因素:更多的训练数据会降低参数估计的方差,从而得到更可信的模型;而更多的测试数据会降低测试误差的方差,从而得到更可信的测试误差。我们这个例子中设置的分割比例为$8:2$
在更复杂的模型训练过程中,我们往往还会多使用一种数据集:验证集。因为复杂的模型中常常还有一些超参数([Hyperparameter](https://en.wikipedia.org/wiki/Hyperparameter_optimization))需要调节,所以我们会尝试多种超参数的组合来分别训练多个模型,然后对比它们在验证集上的表现选择相对最好的一组超参数,最后才使用这组参数下训练的模型在测试集上评估测试误差。由于本章训练的模型比较简单,我们暂且忽略掉这个过程。
## 训练
fit_a_line下trainer.py演示了训练的整体过程
### 初始化paddlepaddle
`fit_a_line/trainer.py`演示了训练的整体过程。
### 初始化PaddlePaddle
```python
# init
paddle.init(use_gpu=False, trainer_count=1)
```
### 模型配置
使用`fc_layer``LinearActivation`来表示线性回归的模型本身。
线性回归的模型其实就是一个采用线性激活函数(linear activation,`LinearActivation`)的全连接层(fully-connected layer,`fc_layer`):
```python
#输入数据,13维的房屋信息
x = paddle.layer.data(name='x', type=paddle.data_type.dense_vector(13))
y_predict = paddle.layer.fc(input=x,
size=1,
......@@ -134,14 +131,12 @@ cost = paddle.layer.regression_cost(input=y_predict, label=y)
### 创建参数
```python
# create parameters
parameters = paddle.parameters.create(cost)
```
### 创建trainer
### 创建Trainer
```python
# create optimizer
optimizer = paddle.optimizer.Momentum(momentum=0)
trainer = paddle.trainer.SGD(cost=cost,
......@@ -150,13 +145,19 @@ trainer = paddle.trainer.SGD(cost=cost,
```
### 读取数据且打印训练的中间信息
在程序中,我们通过reader接口来获取训练或者测试的数据,通过eventhandler来打印训练的中间信息
feeding中设置了训练数据和测试数据的下标,reader通过下标区分训练和测试数据。
PaddlePaddle提供一个
[reader机制](https://github.com/PaddlePaddle/Paddle/tree/develop/doc/design/reader)
来读取数据。 Reader返回的数据可以包括多列,我们需要一个Python dict把列
序号映射到网络里的数据层。
```python
feeding={'x': 0,
'y': 1}
feeding={'x': 0, 'y': 1}
```
此外,我们还可以提供一个 event handler,来打印训练的进度:
```python
# event_handler to print training and testing info
def event_handler(event):
if isinstance(event, paddle.event.EndIteration):
......@@ -171,10 +172,10 @@ def event_handler(event):
feeding=feeding)
print "Test %d, Cost %f" % (event.pass_id, result.cost)
```
### 开始训练
```python
# training
trainer.train(
reader=paddle.batch(
paddle.reader.shuffle(
......@@ -185,13 +186,6 @@ trainer.train(
num_passes=30)
```
## bash中执行训练程序
**注意设置好paddle的安装包路径**
```bash
python train.py
```
## 总结
在这章里,我们借助波士顿房价这一数据集,介绍了线性回归模型的基本概念,以及如何使用PaddlePaddle实现训练和测试的过程。很多的模型和技巧都是从简单的线性回归模型演化而来,因此弄清楚线性模型的原理和局限非常重要。
......
此差异已折叠。
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -86,14 +87,25 @@ $$MSE=\frac{1}{n}\sum_{i=1}^{n}{(\hat{Y_i}-Y_i)}^2$$
3. 根据损失函数进行反向误差传播 ([backpropagation](https://en.wikipedia.org/wiki/Backpropagation)),将网络误差从输出层依次向前传递, 并更新网络中的参数。
4. 重复2~3步骤,直至网络训练误差达到规定的程度或训练轮次达到设定值。
## 数据集
### 数据集接口的封装
首先加载需要的包
## 数据准备
执行以下命令来准备数据:
```bash
cd data && python prepare_data.py
```python
import paddle.v2 as paddle
import paddle.v2.dataset.uci_housing as uci_housing
```
这段代码将从[UCI Housing Data Set](https://archive.ics.uci.edu/ml/datasets/Housing)下载数据并进行[预处理](#数据预处理),最后数据将被分为训练集和测试集。
我们通过uci_housing模块引入了数据集合[UCI Housing Data Set](https://archive.ics.uci.edu/ml/datasets/Housing)
其中,在uci_housing模块中封装了:
1. 数据下载的过程。下载数据保存在~/.cache/paddle/dataset/uci_housing/housing.data。
2. [数据预处理](#数据预处理)的过程。
### 数据集介绍
这份数据集共506行,每行包含了波士顿郊区的一类房屋的相关信息及该类房屋价格的中位数。其各维属性的意义如下:
| 属性名 | 解释 | 类型 |
......@@ -131,89 +143,89 @@ cd data && python prepare_data.py
</p>
#### 整理训练集与测试集
我们将数据集分割为两份:一份用于调整模型的参数,即进行模型的训练,模型在这份数据集上的误差被称为**训练误差**;另外一份被用来测试,模型在这份数据集上的误差被称为**测试误差**。我们训练模型的目的是为了通过从训练数据中找到规律来预测未知的新数据,所以测试误差是更能反映模型表现的指标。分割数据的比例要考虑到两个因素:更多的训练数据会降低参数估计的方差,从而得到更可信的模型;而更多的测试数据会降低测试误差的方差,从而得到更可信的测试误差。一种常见的分割比例为$8:2$,感兴趣的读者朋友们也可以尝试不同的设置来观察这两种误差的变化。
我们将数据集分割为两份:一份用于调整模型的参数,即进行模型的训练,模型在这份数据集上的误差被称为**训练误差**;另外一份被用来测试,模型在这份数据集上的误差被称为**测试误差**。我们训练模型的目的是为了通过从训练数据中找到规律来预测未知的新数据,所以测试误差是更能反映模型表现的指标。分割数据的比例要考虑到两个因素:更多的训练数据会降低参数估计的方差,从而得到更可信的模型;而更多的测试数据会降低测试误差的方差,从而得到更可信的测试误差。我们这个例子中设置的分割比例为$8:2$
执行如下命令可以分割数据集,并将训练集和测试集的地址分别写入train.list 和 test.list两个文件中,供PaddlePaddle读取。
```python
python prepare_data.py -r 0.8 #默认使用8:2的比例进行分割
```
在更复杂的模型训练过程中,我们往往还会多使用一种数据集:验证集。因为复杂的模型中常常还有一些超参数([Hyperparameter](https://en.wikipedia.org/wiki/Hyperparameter_optimization))需要调节,所以我们会尝试多种超参数的组合来分别训练多个模型,然后对比它们在验证集上的表现选择相对最好的一组超参数,最后才使用这组参数下训练的模型在测试集上评估测试误差。由于本章训练的模型比较简单,我们暂且忽略掉这个过程。
### 提供数据给PaddlePaddle
准备好数据之后,我们使用一个Python data provider来为PaddlePaddle的训练过程提供数据。一个 data provider 就是一个Python函数,它会被PaddlePaddle的训练过程调用。在这个例子里,只需要读取已经保存好的数据,然后一行一行地返回给PaddlePaddle的训练进程即可。
```python
from paddle.trainer.PyDataProvider2 import *
import numpy as np
#定义数据的类型和维度
@provider(input_types=[dense_vector(13), dense_vector(1)])
def process(settings, input_file):
data = np.load(input_file.strip())
for row in data:
yield row[:-1].tolist(), row[-1:].tolist()
## 训练
```
`fit_a_line/trainer.py`演示了训练的整体过程。
## 模型配置说明
### 初始化PaddlePaddle
### 数据定义
首先,通过 `define_py_data_sources2` 来配置PaddlePaddle从上面的`dataprovider.py`里读入训练数据和测试数据。 PaddlePaddle接受从命令行读入的配置信息,例如这里我们传入一个名为`is_predict`的变量来控制模型在训练和测试时的不同结构。
```python
from paddle.trainer_config_helpers import *
paddle.init(use_gpu=False, trainer_count=1)
```
is_predict = get_config_arg('is_predict', bool, False)
### 模型配置
define_py_data_sources2(
train_list='data/train.list',
test_list='data/test.list',
module='dataprovider',
obj='process')
线性回归的模型其实就是一个采用线性激活函数(linear activation,`LinearActivation`)的全连接层(fully-connected layer,`fc_layer`):
```python
x = paddle.layer.data(name='x', type=paddle.data_type.dense_vector(13))
y_predict = paddle.layer.fc(input=x,
size=1,
act=paddle.activation.Linear())
y = paddle.layer.data(name='y', type=paddle.data_type.dense_vector(1))
cost = paddle.layer.regression_cost(input=y_predict, label=y)
```
### 创建参数
### 算法配置
接着,指定模型优化算法的细节。由于线性回归模型比较简单,我们只要设置基本的`batch_size`即可,它指定每次更新参数的时候使用多少条数据计算梯度信息。
```python
settings(batch_size=2)
parameters = paddle.parameters.create(cost)
```
### 网络结构
最后,使用`fc_layer`和`LinearActivation`来表示线性回归的模型本身。
### 创建Trainer
```python
#输入数据,13维的房屋信息
x = data_layer(name='x', size=13)
optimizer = paddle.optimizer.Momentum(momentum=0)
y_predict = fc_layer(
input=x,
param_attr=ParamAttr(name='w'),
size=1,
act=LinearActivation(),
bias_attr=ParamAttr(name='b'))
if not is_predict: #训练时,我们使用MSE,即regression_cost作为损失函数
y = data_layer(name='y', size=1)
cost = regression_cost(input=y_predict, label=y)
outputs(cost) #训练时输出MSE来监控损失的变化
else: #测试时,输出预测值
outputs(y_predict)
trainer = paddle.trainer.SGD(cost=cost,
parameters=parameters,
update_equation=optimizer)
```
## 训练模型
在对应代码的根目录下执行PaddlePaddle的命令行训练程序。这里指定模型配置文件为`trainer_config.py`,训练30轮,结果保存在`output`路径下。
```bash
./train.sh
### 读取数据且打印训练的中间信息
PaddlePaddle提供一个
[reader机制](https://github.com/PaddlePaddle/Paddle/tree/develop/doc/design/reader)
来读取数据。 Reader返回的数据可以包括多列,我们需要一个Python dict把列
序号映射到网络里的数据层。
```python
feeding={'x': 0, 'y': 1}
```
## 应用模型
现在来看下如何使用已经训练好的模型进行预测。
```bash
python predict.py
此外,我们还可以提供一个 event handler,来打印训练的进度:
```python
# event_handler to print training and testing info
def event_handler(event):
if isinstance(event, paddle.event.EndIteration):
if event.batch_id % 100 == 0:
print "Pass %d, Batch %d, Cost %f" % (
event.pass_id, event.batch_id, event.cost)
if isinstance(event, paddle.event.EndPass):
result = trainer.test(
reader=paddle.batch(
uci_housing.test(), batch_size=2),
feeding=feeding)
print "Test %d, Cost %f" % (event.pass_id, result.cost)
```
这里默认使用`output/pass-00029`中保存的模型进行预测,并将数据中的房价与预测结果进行对比,结果保存在 `predictions.png`中。
如果你想使用别的模型或者其它的数据进行预测,只要传入新的路径即可:
```bash
python predict.py -m output/pass-00020 -t data/housing.test.npy
### 开始训练
```python
trainer.train(
reader=paddle.batch(
paddle.reader.shuffle(
uci_housing.train(), buf_size=500),
batch_size=2),
feeding=feeding,
event_handler=event_handler,
num_passes=30)
```
## 总结
......@@ -228,6 +240,7 @@ python predict.py -m output/pass-00020 -t data/housing.test.npy
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
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extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
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<div id="markdown" style='display:none'>
TODO: Write about https://github.com/PaddlePaddle/Paddle/tree/develop/demo/gan
</div>
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extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
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<div id="markdown" style='display:none'>
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<head>
<script type="text/x-mathjax-config">
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extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -589,6 +590,7 @@ Traditional image classification methods involve multiple stages of processing a
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
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<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -535,6 +536,7 @@ Test with Pass 0, {'classification_error_evaluator': 0.885200023651123}
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
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<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
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displayMath: [ ['$$','$$'] ],
processEscapes: true
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"HTML-CSS": { availableFonts: ["TeX"] }
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<div id="markdown" style='display:none'>
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<html>
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extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
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<meta http-equiv="refresh" content="0; url=https://github.com/paddlepaddle/book" />
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<a href="https://github.com/paddlepaddle/book">Please access github home page</a>
<div id="context" class="container markdown-body">
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# 深度学习入门
1. 新手入门 [[fit_a_line](fit_a_line/)] [[html](http://book.paddlepaddle.org/fit_a_line)]
1. 识别数字 [[recognize_digits](recognize_digits/)] [[html](http://book.paddlepaddle.org/recognize_digits)]
1. 图像分类 [[image_classification](image_classification/)] [[html](http://book.paddlepaddle.org/image_classification)]
1. 词向量 [[word2vec](word2vec/)] [[html](http://book.paddlepaddle.org/word2vec)]
1. 情感分析 [[understand_sentiment](understand_sentiment/)] [[html](http://book.paddlepaddle.org/understand_sentiment)]
1. 语义角色标注 [[label_semantic_roles](label_semantic_roles/)] [[html](http://book.paddlepaddle.org/label_semantic_roles)]
1. 机器翻译 [[machine_translation](machine_translation/)] [[html](http://book.paddlepaddle.org/machine_translation)]
1. 个性化推荐 [[recommender_system](recommender_system/)] [[html](http://book.paddlepaddle.org/recommender_system)]
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
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......@@ -22,34 +22,20 @@ Standard SRL system mostly builds on top of Syntactic Analysis and contains five
<div align="center">
<img src="image/dependency_parsing.png" width = "80%" align=center /><br>
<img src="image/dependency_parsing_en.png" width = "80%" align=center /><br>
Fig 1. Syntactic parse tree
</div>
核心关系-> HED
定中关系-> ATT
主谓关系-> SBV
状中结构-> ADV
介宾关系-> POB
右附加关系-> RAD
动宾关系-> VOB
标点-> WP
However, complete syntactic analysis requires identifying the relation among all constitutes and the performance of SRL is sensitive to the precision of syntactic analysis, which makes SRL a very challenging task. To reduce the complexity and obtain some syntactic structure information, we often use shallow syntactic analysis. Shallow Syntactic Analysis is also called partial parsing or chunking. Unlike complete syntactic analysis which requires the construction of the complete parsing tree, Shallow Syntactic Analysis only need to identify some independent components with relatively simple structure, such as verb phrases (chunk). To avoid difficulties in constructing a syntactic tree with high accuracy, some work\[[1](#Reference)\] proposed semantic chunking based SRL methods, which convert SRL as a sequence tagging problem. Sequence tagging tasks classify syntactic chunks using BIO representation. For syntactic chunks forming a chunk of type A, the first chunk receives the B-A tag (Begin), the remaining ones receive the tag I-A (Inside), and all chunks outside receive the tag O-A.
The BIO representation of above example is shown in Fig.1.
<div align="center">
<img src="image/bio_example.png" width = "90%" align=center /><br>
<img src="image/bio_example_en.png" width = "90%" align=center /><br>
Fig 2. BIO represention
</div>
输入序列-> input sequence
语块-> chunk
标注序列-> label sequence
角色-> role
This example illustrates the simplicity of sequence tagging because (1) shallow syntactic analysis reduces the precision requirement of syntactic analysis; (2) pruning candidate arguments is removed; 3) argument identification and tagging are finished at the same time. Such unified methods simplify the procedure, reduce the risk of accumulating errors and boost the performance further.
In this tutorial, our SRL system is built as an end-to-end system via a neural network. We take only text sequences, without using any syntactic parsing results or complex hand-designed features. We give public dataset [CoNLL-2004 and CoNLL-2005 Shared Tasks](http://www.cs.upc.edu/~srlconll/) as an example to illustrate: given a sentence with predicates marked, identify the corresponding arguments and their semantic roles by sequence tagging method.
......@@ -71,13 +57,10 @@ The operation of a single LSTM cell contain 3 parts: (1) input-to-hidden: map in
Fig.3 illustrate the final stacked recurrent neural networks.
<p align="center">
<img src="./image/stacked_lstm.png" width = "40%" align=center><br>
<img src="./image/stacked_lstm_en.png" width = "40%" align=center><br>
Fig 3. Stacked Recurrent Neural Networks
</p>
线性变换-> linear transformation
输入层到隐层-> input-to-hidden
### Bidirectional Recurrent Neural Network
LSTMs can summarize the history of previous inputs seen up to now, but can not see the future. In most of NLP (natural language processing) tasks, the entire sentences are ready to use. Therefore, sequential learning might be much efficient if the future can be encoded as well like histories.
......@@ -86,15 +69,10 @@ To address the above drawbacks, we can design bidirectional recurrent neural net
<p align="center">
<img src="./image/bidirectional_stacked_lstm.png" width = "60%" align=center><br>
<img src="./image/bidirectional_stacked_lstm_en.png" width = "60%" align=center><br>
Fig 4. Bidirectional LSTMs
</p>
线性变换-> linear transformation
输入层到隐层-> input-to-hidden
正向处理输出序列->process sequence in the forward direction
反向处理上一层序列-> process sequence from the previous layer in backward direction
Note that, this bidirectional RNNs is different with the one proposed by Bengio et al. in machine translation tasks \[[3](#Reference), [4](#Reference)\]. We will introduce another bidirectional RNNs in the following tasks[machine translation](https://github.com/PaddlePaddle/book/blob/develop/machine_translation/README.md)
### Conditional Random Field
......@@ -156,18 +134,10 @@ After modification, the model is as follows:
<div align="center">
<img src="image/db_lstm_network.png" width = "60%" align=center /><br>
<img src="image/db_lstm_en.png" width = "60%" align=center /><br>
Fig 6. DB-LSTM for SRL tasks
</div>
论元-> argu
谓词-> pred
谓词上下文-> ctx-p
谓词上下文区域标记-> $m_r$
输入-> input
原句-> sentence
反向LSTM-> LSTM Reverse
## Data Preparation
In the tutorial, we use [CoNLL 2005](http://www.cs.upc.edu/~srlconll/) SRL task open dataset as an example. It is important to note that the training set and development set of the CoNLL 2005 SRL task are not free to download after the competition. Currently, only the test set can be obtained, including 23 sections of the Wall Street Journal and three sections of the Brown corpus. In this tutorial, we use the WSJ corpus as the training dataset to explain the model. However, since the training set is small, if you want to train a usable neural network SRL system, consider paying for the full corpus.
......
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<html>
<head>
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......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
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......@@ -63,34 +64,20 @@ Standard SRL system mostly builds on top of Syntactic Analysis and contains five
<div align="center">
<img src="image/dependency_parsing.png" width = "80%" align=center /><br>
<img src="image/dependency_parsing_en.png" width = "80%" align=center /><br>
Fig 1. Syntactic parse tree
</div>
核心关系-> HED
定中关系-> ATT
主谓关系-> SBV
状中结构-> ADV
介宾关系-> POB
右附加关系-> RAD
动宾关系-> VOB
标点-> WP
However, complete syntactic analysis requires identifying the relation among all constitutes and the performance of SRL is sensitive to the precision of syntactic analysis, which makes SRL a very challenging task. To reduce the complexity and obtain some syntactic structure information, we often use shallow syntactic analysis. Shallow Syntactic Analysis is also called partial parsing or chunking. Unlike complete syntactic analysis which requires the construction of the complete parsing tree, Shallow Syntactic Analysis only need to identify some independent components with relatively simple structure, such as verb phrases (chunk). To avoid difficulties in constructing a syntactic tree with high accuracy, some work\[[1](#Reference)\] proposed semantic chunking based SRL methods, which convert SRL as a sequence tagging problem. Sequence tagging tasks classify syntactic chunks using BIO representation. For syntactic chunks forming a chunk of type A, the first chunk receives the B-A tag (Begin), the remaining ones receive the tag I-A (Inside), and all chunks outside receive the tag O-A.
The BIO representation of above example is shown in Fig.1.
<div align="center">
<img src="image/bio_example.png" width = "90%" align=center /><br>
<img src="image/bio_example_en.png" width = "90%" align=center /><br>
Fig 2. BIO represention
</div>
输入序列-> input sequence
语块-> chunk
标注序列-> label sequence
角色-> role
This example illustrates the simplicity of sequence tagging because (1) shallow syntactic analysis reduces the precision requirement of syntactic analysis; (2) pruning candidate arguments is removed; 3) argument identification and tagging are finished at the same time. Such unified methods simplify the procedure, reduce the risk of accumulating errors and boost the performance further.
In this tutorial, our SRL system is built as an end-to-end system via a neural network. We take only text sequences, without using any syntactic parsing results or complex hand-designed features. We give public dataset [CoNLL-2004 and CoNLL-2005 Shared Tasks](http://www.cs.upc.edu/~srlconll/) as an example to illustrate: given a sentence with predicates marked, identify the corresponding arguments and their semantic roles by sequence tagging method.
......@@ -112,13 +99,10 @@ The operation of a single LSTM cell contain 3 parts: (1) input-to-hidden: map in
Fig.3 illustrate the final stacked recurrent neural networks.
<p align="center">
<img src="./image/stacked_lstm.png" width = "40%" align=center><br>
<img src="./image/stacked_lstm_en.png" width = "40%" align=center><br>
Fig 3. Stacked Recurrent Neural Networks
</p>
线性变换-> linear transformation
输入层到隐层-> input-to-hidden
### Bidirectional Recurrent Neural Network
LSTMs can summarize the history of previous inputs seen up to now, but can not see the future. In most of NLP (natural language processing) tasks, the entire sentences are ready to use. Therefore, sequential learning might be much efficient if the future can be encoded as well like histories.
......@@ -127,15 +111,10 @@ To address the above drawbacks, we can design bidirectional recurrent neural net
<p align="center">
<img src="./image/bidirectional_stacked_lstm.png" width = "60%" align=center><br>
<img src="./image/bidirectional_stacked_lstm_en.png" width = "60%" align=center><br>
Fig 4. Bidirectional LSTMs
</p>
线性变换-> linear transformation
输入层到隐层-> input-to-hidden
正向处理输出序列->process sequence in the forward direction
反向处理上一层序列-> process sequence from the previous layer in backward direction
Note that, this bidirectional RNNs is different with the one proposed by Bengio et al. in machine translation tasks \[[3](#Reference), [4](#Reference)\]. We will introduce another bidirectional RNNs in the following tasks[machine translation](https://github.com/PaddlePaddle/book/blob/develop/machine_translation/README.md)
### Conditional Random Field
......@@ -197,18 +176,10 @@ After modification, the model is as follows:
<div align="center">
<img src="image/db_lstm_network.png" width = "60%" align=center /><br>
<img src="image/db_lstm_en.png" width = "60%" align=center /><br>
Fig 6. DB-LSTM for SRL tasks
</div>
论元-> argu
谓词-> pred
谓词上下文-> ctx-p
谓词上下文区域标记-> $m_r$
输入-> input
原句-> sentence
反向LSTM-> LSTM Reverse
## Data Preparation
In the tutorial, we use [CoNLL 2005](http://www.cs.upc.edu/~srlconll/) SRL task open dataset as an example. It is important to note that the training set and development set of the CoNLL 2005 SRL task are not free to download after the competition. Currently, only the test set can be obtained, including 23 sections of the Wall Street Journal and three sections of the Brown corpus. In this tutorial, we use the WSJ corpus as the training dataset to explain the model. However, since the training set is small, if you want to train a usable neural network SRL system, consider paying for the full corpus.
......@@ -542,6 +513,7 @@ Semantic Role Labeling is an important intermediate step in a wide range of natu
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
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<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
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......@@ -509,6 +510,7 @@ trainer.train(
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
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此差异已折叠。
import paddle.v2 as paddle
def seqToseq_net(source_dict_dim, target_dict_dim):
### Network Architecture
word_vector_dim = 512 # dimension of word vector
decoder_size = 512 # dimension of hidden unit in GRU Decoder network
encoder_size = 512 # dimension of hidden unit in GRU Encoder network
#### Encoder
src_word_id = paddle.layer.data(
name='source_language_word',
type=paddle.data_type.integer_value_sequence(source_dict_dim))
src_embedding = paddle.layer.embedding(
input=src_word_id,
size=word_vector_dim,
param_attr=paddle.attr.ParamAttr(name='_source_language_embedding'))
src_forward = paddle.networks.simple_gru(
input=src_embedding, size=encoder_size)
src_backward = paddle.networks.simple_gru(
input=src_embedding, size=encoder_size, reverse=True)
encoded_vector = paddle.layer.concat(input=[src_forward, src_backward])
#### Decoder
with paddle.layer.mixed(size=decoder_size) as encoded_proj:
encoded_proj += paddle.layer.full_matrix_projection(
input=encoded_vector)
backward_first = paddle.layer.first_seq(input=src_backward)
with paddle.layer.mixed(
size=decoder_size, act=paddle.activation.Tanh()) as decoder_boot:
decoder_boot += paddle.layer.full_matrix_projection(
input=backward_first)
def gru_decoder_with_attention(enc_vec, enc_proj, current_word):
decoder_mem = paddle.layer.memory(
name='gru_decoder', size=decoder_size, boot_layer=decoder_boot)
context = paddle.networks.simple_attention(
encoded_sequence=enc_vec,
encoded_proj=enc_proj,
decoder_state=decoder_mem)
with paddle.layer.mixed(size=decoder_size * 3) as decoder_inputs:
decoder_inputs += paddle.layer.full_matrix_projection(input=context)
decoder_inputs += paddle.layer.full_matrix_projection(
input=current_word)
gru_step = paddle.layer.gru_step(
name='gru_decoder',
input=decoder_inputs,
output_mem=decoder_mem,
size=decoder_size)
with paddle.layer.mixed(
size=target_dict_dim,
bias_attr=True,
act=paddle.activation.Softmax()) as out:
out += paddle.layer.full_matrix_projection(input=gru_step)
return out
decoder_group_name = "decoder_group"
group_input1 = paddle.layer.StaticInputV2(input=encoded_vector, is_seq=True)
group_input2 = paddle.layer.StaticInputV2(input=encoded_proj, is_seq=True)
group_inputs = [group_input1, group_input2]
trg_embedding = paddle.layer.embedding(
input=paddle.layer.data(
name='target_language_word',
type=paddle.data_type.integer_value_sequence(target_dict_dim)),
size=word_vector_dim,
param_attr=paddle.attr.ParamAttr(name='_target_language_embedding'))
group_inputs.append(trg_embedding)
# For decoder equipped with attention mechanism, in training,
# target embeding (the groudtruth) is the data input,
# while encoded source sequence is accessed to as an unbounded memory.
# Here, the StaticInput defines a read-only memory
# for the recurrent_group.
decoder = paddle.layer.recurrent_group(
name=decoder_group_name,
step=gru_decoder_with_attention,
input=group_inputs)
lbl = paddle.layer.data(
name='target_language_next_word',
type=paddle.data_type.integer_value_sequence(target_dict_dim))
cost = paddle.layer.classification_cost(input=decoder, label=lbl)
return cost
def main():
paddle.init(use_gpu=False, trainer_count=1)
# source and target dict dim.
dict_size = 30000
source_dict_dim = target_dict_dim = dict_size
# define network topology
cost = seqToseq_net(source_dict_dim, target_dict_dim)
parameters = paddle.parameters.create(cost)
# define optimize method and trainer
optimizer = paddle.optimizer.Adam(learning_rate=1e-4)
trainer = paddle.trainer.SGD(cost=cost,
parameters=parameters,
update_equation=optimizer)
# define data reader
feeding = {
'source_language_word': 0,
'target_language_word': 1,
'target_language_next_word': 2
}
wmt14_reader = paddle.batch(
paddle.reader.shuffle(
paddle.dataset.wmt14.train(dict_size=dict_size), buf_size=8192),
batch_size=5)
# define event_handler callback
def event_handler(event):
if isinstance(event, paddle.event.EndIteration):
if event.batch_id % 10 == 0:
print "Pass %d, Batch %d, Cost %f, %s" % (
event.pass_id, event.batch_id, event.cost, event.metrics)
# start to train
trainer.train(
reader=wmt14_reader,
event_handler=event_handler,
num_passes=10000,
feeding=feeding)
if __name__ == '__main__':
main()
<html>
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extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
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......@@ -764,6 +765,7 @@ End-to-end neural machine translation is a recently developed way to perform mac
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
<!-- You can change the lines below now. -->
......
此差异已折叠。
markdown_file=$1
import argparse
import re
import sys
# Notice: the single-quotes around EOF below make outputs
# verbatium. c.f. http://stackoverflow.com/a/9870274/724872
cat <<'EOF'
HEAD = """
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -10,8 +10,8 @@ cat <<'EOF'
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -44,11 +44,9 @@ cat <<'EOF'
<!-- This block will be replaced by each markdown file content. Please do not change lines below.-->
<div id="markdown" style='display:none'>
EOF
"""
cat $markdown_file
cat <<'EOF'
TAIL = """
</div>
<!-- You can change the lines below now. -->
......@@ -70,4 +68,28 @@ document.getElementById("context").innerHTML = marked(
document.getElementById("markdown").innerHTML)
</script>
</body>
EOF
"""
def convert_markdown_into_html(argv=None):
parser = argparse.ArgumentParser()
parser.add_argument('filenames', nargs='*', help='Filenames to fix')
args = parser.parse_args(argv)
retv = 0
for filename in args.filenames:
with open(
re.sub(r"README", "index", re.sub(r"\.md$", ".html", filename)),
"w") as output:
output.write(HEAD)
with open(filename) as input:
for line in input:
output.write(line)
output.write(TAIL)
return retv
if __name__ == '__main__':
sys.exit(convert_markdown_into_html())
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -39,6 +40,7 @@
<!-- This block will be replaced by each markdown file content. Please do not change lines below.-->
<div id="markdown" style='display:none'>
</div>
<!-- You can change the lines below now. -->
......
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -338,6 +339,7 @@ This tutorial describes a few basic Deep Learning models viz. Softmax regression
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">This book</span> is created by <a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a>, and uses <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">Shared knowledge signature - non commercial use-Sharing 4.0 International Licensing Protocal</a>.
</div>
<!-- You can change the lines below now. -->
......
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -340,6 +341,7 @@ trainer.train(
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
<!-- You can change the lines below now. -->
......
.idea
.ipynb_checkpoints
此差异已折叠。
此差异已折叠。
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -150,6 +151,7 @@ This tutorial goes over traditional approaches in recommender system and a deep
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="Creative Commons" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">This tutorial</span> was created by <a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">the PaddlePaddle community</a> and published under <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">Common Creative 4.0 License</a>
</div>
<!-- You can change the lines below now. -->
......
此差异已折叠。
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -39,6 +40,7 @@
<!-- This block will be replaced by each markdown file content. Please do not change lines below.-->
<div id="markdown" style='display:none'>
</div>
<!-- You can change the lines below now. -->
......
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -39,6 +40,7 @@
<!-- This block will be replaced by each markdown file content. Please do not change lines below.-->
<div id="markdown" style='display:none'>
</div>
<!-- You can change the lines below now. -->
......
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -532,6 +533,7 @@ In this chapter, we use sentiment analysis as an example to introduce applying d
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
<!-- You can change the lines below now. -->
......
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -353,6 +354,7 @@ Test with Pass 0, {'classification_error_evaluator': 0.11432000249624252}
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
<!-- You can change the lines below now. -->
......
此差异已折叠。
<html>
<head>
<script type="text/x-mathjax-config">
......@@ -5,8 +6,8 @@
extensions: ["tex2jax.js", "TeX/AMSsymbols.js", "TeX/AMSmath.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
inlineMath: [ ['$','$'] ],
displayMath: [ ['$$','$$'] ],
processEscapes: true
},
"HTML-CSS": { availableFonts: ["TeX"] }
......@@ -219,6 +220,7 @@ In information retrieval, the relevance between the query and document keyword c
<br/>
<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="知识共享许可协议" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">本教程</span><a xmlns:cc="http://creativecommons.org/ns#" href="http://book.paddlepaddle.org" property="cc:attributionName" rel="cc:attributionURL">PaddlePaddle</a> 创作,采用 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">知识共享 署名-非商业性使用-相同方式共享 4.0 国际 许可协议</a>进行许可。
</div>
<!-- You can change the lines below now. -->
......
此差异已折叠。
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