Sentiment Analysis

  1. Feature Engineering and Representation
    1. Traditional Text Features
      1. Bag-of-Words Representation
        1. Unigrams
          1. Bigrams
            1. Trigrams
              1. Higher-order N-grams
                1. Vocabulary Size Considerations
                2. Term Frequency Methods
                  1. Raw Term Frequency
                    1. Normalized Term Frequency
                      1. Binary Occurrence
                      2. TF-IDF Weighting
                        1. Term Frequency Component
                          1. Inverse Document Frequency
                            1. Normalization Schemes
                              1. Variants and Extensions
                              2. Feature Selection
                                1. Chi-Square Test
                                  1. Mutual Information
                                    1. Information Gain
                                      1. Correlation-Based Selection
                                        1. Recursive Feature Elimination
                                      2. Linguistic Features
                                        1. Part-of-Speech Features
                                          1. POS Tag Frequencies
                                            1. POS Patterns
                                              1. Syntactic Features
                                              2. Dependency Features
                                                1. Dependency Relations
                                                  1. Syntactic Patterns
                                                    1. Tree Kernels
                                                    2. Semantic Features
                                                      1. Named Entity Features
                                                        1. Semantic Role Features
                                                          1. WordNet Features
                                                        2. Sentiment-Specific Features
                                                          1. Lexicon-Based Features
                                                            1. Sentiment Scores
                                                              1. Emotion Scores
                                                                1. Polarity Counts
                                                                2. Negation Features
                                                                  1. Negation Indicators
                                                                    1. Negated Terms
                                                                      1. Scope Features
                                                                      2. Intensification Features
                                                                        1. Intensifier Counts
                                                                          1. Degree Modifiers
                                                                        2. Word Embeddings
                                                                          1. Static Word Embeddings
                                                                            1. Word2Vec
                                                                              1. Continuous Bag-of-Words
                                                                                1. Skip-gram Model
                                                                                  1. Hierarchical Softmax
                                                                                    1. Negative Sampling
                                                                                    2. GloVe Embeddings
                                                                                      1. Global Matrix Factorization
                                                                                        1. Local Context Windows
                                                                                        2. FastText
                                                                                          1. Subword Information
                                                                                            1. Character N-grams
                                                                                              1. Out-of-Vocabulary Handling
                                                                                            2. Contextualized Embeddings
                                                                                              1. ELMo
                                                                                                1. Bidirectional Language Models
                                                                                                  1. Context-Dependent Representations
                                                                                                  2. Transformer-Based Models
                                                                                                    1. BERT
                                                                                                      1. RoBERTa
                                                                                                        1. DistilBERT
                                                                                                          1. ALBERT
                                                                                                            1. GPT Models
                                                                                                          2. Embedding Fine-tuning
                                                                                                            1. Domain Adaptation
                                                                                                              1. Task-Specific Fine-tuning
                                                                                                                1. Embedding Alignment
                                                                                                                2. Embedding Evaluation
                                                                                                                  1. Intrinsic Evaluation
                                                                                                                    1. Extrinsic Evaluation
                                                                                                                      1. Visualization Techniques

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                                                                                                                  4. Machine Learning Approaches

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                                                                                                                  6. Deep Learning for Sentiment Analysis