CS224 Lecture1 Word2Vec

CS224 Lecture1 - Word2Vec 1 Introduction of Natural Language Processing Natural Language is a discrete/symbolic/categorical system. 1.1 Examples of tasks There are many different levels in NLP. For instance: Easy: Spell Checking Keywords Search Finding Synonyms Synonym: 同义词 noun Medium Parsing information from websites, documents, etc. Parse: 对句子进行语法分析 verb Hard Machine Translation Semantic Analysis (What is the meaning of query