了解NLP原理,并认识AI在商业中的应用
详细培训大纲
- NLP简介
- 理解NLP
- NLP框架
- NLP的商业应用
- 从网路上抓取数据
- 使用各种API获取文本数据
- 处理和存储文本语料库,保存内容及相关元数据
- 使用Python和NLTK速成课程的优势
- 语料库和数据集的实际理解
- 为什么需要语料库?
- 语料库分析
- 数据属性的类型
- 语料库的不同文件格式
- 为NLP应用准备数据集
- 理解句子的结构
- NLP的组成部分
- 自然语言理解
- 形态分析 - 词干、词、词元、词性标签
- 句法分析
- 语义分析
- 处理歧义
- 文本数据预处理
- 语料库 - 原始文本
- 句子分词
- 原始文本的词干提取
- 原始文本的词元化
- 停用词移除
- 语料库 - 原始句子
- Word分词
- Word词元化
- 处理术语-文件/文件-术语矩阵
- 将文本分词为n-grams和句子
- 实际和自定义的预处理
- 语料库 - 原始文本
- 分析文本数据
- NLP的基本特征
- 解析器和解析
- 词性标注和标注器
- 命名实体识别
- N-grams
- 词袋模型
- NLP的统计特征
- NLP的线性代数概念
- NLP的概率理论
- TF-IDF
- 向量化
- 编码器和解码器
- 正规化
- 概率模型
- 高级特征工程和NLP
- word2vec基础
- word2vec模型的组成部分
- word2vec模型的逻辑
- word2vec概念的扩展
- word2vec模型的应用
- 案例研究:词袋模型的应用:使用简化和真实的Luhn算法进行自动文本摘要
- NLP的基本特征
- 文件聚类、分类和主题建模
- 文件聚类和模式挖掘(层次聚类、k-means聚类等)
- 使用TFIDF、Jaccard和馀弦距离度量比较和分类文件
- 使用朴素贝叶斯和最大熵进行文件分类
- 识别重要文本Element
- 降维:主成分分析、奇异值分解、非负矩阵分解
- 使用潜在语义分析进行主题建模和信息检索
- 实体提取、Sentiment Analysis和高级主题建模
- 正面与负面:情感程度
- 项目反应理论
- 词性标注及其应用:查找文本中提到的人、地点和组织
- 高级主题建模:潜在狄利克雷分配
- 案例研究
- 挖掘非结构化用户评论
- 产品评论数据的情感分类和可视化
- 挖掘搜索日志以获取使用模式
- 文本分类
- 主题建模
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