了解NLP原理,並認識AI在商業中的應用
詳細培訓大綱
- NLP簡介
- 理解NLP
- NLP框架
- NLP的商業應用
- 從網路上抓取數據
- 使用各種API獲取文本數據
- 處理和存儲文本語料庫,保存內容及相關元數據
- 使用Python和NLTK速成課程的優勢
- 語料庫和數據集的實際理解
- 為什麼需要語料庫?
- 語料庫分析
- 數據屬性的類型
- 語料庫的不同文件格式
- 為NLP應用準備數據集
- 理解句子的結構
- NLP的組成部分
- 自然語言理解
- 形態分析 - 詞幹、詞、詞元、詞性標籤
- 句法分析
- 語義分析
- 處理歧義
- 文本數據預處理
- 語料庫 - 原始文本
- 句子分詞
- 原始文本的詞幹提取
- 原始文本的詞元化
- 停用詞移除
- 語料庫 - 原始句子
- Word分詞
- Word詞元化
- 處理術語-文件/文件-術語矩陣
- 將文本分詞為n-grams和句子
- 實際和自定義的預處理
- 語料庫 - 原始文本
- 分析文本數據
- NLP的基本特徵
- 解析器和解析
- 詞性標註和標註器
- 命名實體識別
- N-grams
- 詞袋模型
- NLP的統計特徵
- NLP的線性代數概念
- NLP的概率理論
- TF-IDF
- 向量化
- 編碼器和解碼器
- 正規化
- 概率模型
- 高級特徵工程和NLP
- word2vec基礎
- word2vec模型的組成部分
- word2vec模型的邏輯
- word2vec概念的擴展
- word2vec模型的應用
- 案例研究:詞袋模型的應用:使用簡化和真實的Luhn算法進行自動文本摘要
- NLP的基本特徵
- 文件聚類、分類和主題建模
- 文件聚類和模式挖掘(層次聚類、k-means聚類等)
- 使用TFIDF、Jaccard和餘弦距離度量比較和分類文件
- 使用樸素貝葉斯和最大熵進行文件分類
- 識別重要文本Element
- 降維:主成分分析、奇異值分解、非負矩陣分解
- 使用潛在語義分析進行主題建模和信息檢索
- 實體提取、Sentiment Analysis和高級主題建模
- 正面與負面:情感程度
- 項目反應理論
- 詞性標註及其應用:查找文本中提到的人、地點和組織
- 高級主題建模:潛在狄利克雷分配
- 案例研究
- 挖掘非結構化用戶評論
- 產品評論數據的情感分類和可視化
- 挖掘搜索日誌以獲取使用模式
- 文本分類
- 主題建模
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