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2. natural language processing with spacy (210928)

• 2.1.1: spacy, install spacy packages to anaconda venv
• 2.1.2: python syntax, practice data structures, conditional statements, flow control
• 2.1.3: nlp doc, create our first nlp document
• 2.2.1: features, applying nlp analyses to extract linguistic features
• 2.2.2: part of speech, analyze syntactic structure, useful for finding e.g. negations
• 2.2.3: entity recognition, extract named entities from text, analyze word similarity
• 2.3.1: classify, how to use scikit-learn for sentiment analysis
• 2.3.2: ,
• 2.3.3: ,