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open Graph Image
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is In Organization
No
is In Organization
Yes
description
代码主要包括:1。特征提取 首先对文本信息进行分词处理,采用基于字符串匹配的方法: 假如一段叫:李二狗就是一个** 基于匹配的方法就是依次截取一到多个词,并与字典库进行匹配。如二狗,如果匹配到字典中有这个词,则将其分为一个词;当取到“狗就”,发现字典中没有与之匹配的,则说明这个不是一个词语,进行顺序操作,最优将这段话分为:李 二狗 就是 一个 **。 2. 得到分词后的文本之后,就是转换成数字编码,因此电脑没办法识别汉字。这一部分叫特征表示,即用数字的方式表示中文文本,采用的方法是基于词带模型的特征表示: 词带就是字典--程序中那个dictionary.mat。我们将分词处理之后的文本中的每一个词语,分别与字典中的词进行匹配,只要出现过就为1,否则为0。 如 字典中的词含有:李 周 吴 郑 王 他妈的 就是 大 ** 一个 三炮 也是 瓜娃子,一共13词(当然正常的词典都是上万个词),将1中得到的词语与之匹配,则李二狗就是一个**对应的数字编码就应该是 1 0 0 0 0 0 1 0 1 1 0 0 0 3,通过2我们将文本表示成了数字,但是这样的表示通常都是稀疏的(因为一般字典都含有上万个词,所以得到的数字表示大部分都是0),为此我们利用降维方法,消除掉这些冗余特征。这里我们采用的PCA(主成分分析)进行降维,并降至15维。 4. 文本分类,采用的就是bp网络 代码修改的地方不多,主要就是超参数的选择,(1)如pca的降维数,维数过高,包含冗余数据,过低又会删除掉重要信息。(2)bp网络结构的调整,如隐含层节点数,学习率,等
description
A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.
homepage
homepage
https://webpack.js.org
url
https://githubhelp/wj1159/texture-classification-based-on-bpnn-and-dictionary
url
https://githubhelp/webpack/webpack
disk Usage
3576
dis kUsage
65742
stargazer Count
0
stargazer Count
64406
forkCount
0
forkCount
8748
watcher Count
0
watcher Count
1476
created At
2021-04-20
created At
2012-03-10
license Info
license Info
MIT License
issues
0
issues
50
languages
1
languages
9
repository Topics
0
repository Topics
10
owner
wj1159
owner
webpack
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owner Avatar
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other
other

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