Computational Intelligence Applications for Text and Sentiment Data Analysis

Cover
Contents
About the editors
List of contributors
Preface
1 Sentiment analysis and computational intelligence
1.1 Introduction
1.2 Themes and challenges
1.3 Goals
1.4 Recent advances in sentiment-data analysis
1.4.1 Industrial and academic developments
1.5 Conclusions
References
2 Natural language processing and sentiment analysis: perspectives from computational intelligence
2.1 Introduction
2.2 Related work
2.3 Popular emotion models in computational analysis
2.3.1 Russell’s circumplex model of emotions
2.3.2 Plutchik’s wheel of emotions
2.3.3 Ekman’s basic emotions
2.3.4 Hourglass of emotions
2.4 Dataset description
2.4.1 Corpus preparation
2.4.2 Descriptive statistics of the corpus
2.4.3 Generation of sentiment labels using weak supervision
2.5 Proposed methodology
2.5.1 Word-embedding representation
2.5.2 Base models
2.5.2.1 Convolutional Neural Network (CNN_STL)
2.5.2.2 Bidirectional Long Short-Term Memory (BiLSTM_STL)
2.5.2.3 Bidirectional Gated Recurrent Unit (Bi-GRU_STL)
2.5.3 Attention
2.5.4 Loss function
2.5.5 Multitask framework
2.6 Baselines
2.7 Experiments, results, and analysis
2.7.1 Experimental setting
2.7.2 Evaluation metrics
2.7.3 Experimental results and discussion
2.7.4 Error analysis
2.8 Conclusion
Acknowledgments
References
3 Applications and challenges of SA in real-life scenarios
3.1 Health
3.1.1 Challenges
3.1.2 Applications
3.2 Social policy
3.2.1 Applications in social policy
3.2.2 Challenges in social policy
3.3 E-commerce / industry
3.3.1 Applications in e-commerce
3.3.2 Challenges in e-commerce
3.4 Digital humanities
3.4.1 Applications
3.5 Other research areas
3.5.1 Applications to other research areas
3.5.2 Challenges for SA research in other areas
3.6 Summary
References
4 Emotions of students from online and offline texts
4.1 Introduction
4.2 State-of-the-art
4.3 Some basic concepts
4.3.1 Natural language processing (NLP)
4.3.2 Image processing
4.3.3 Graphology-oriented feature extraction
4.3.4 Rule-based classifier
4.4 Methodology
4.4.1 Raw-data collection
4.4.1.1 Phase 1: data collection of social-media messages
4.4.1.2 Phase 2: data collection of signature images
4.4.2 Phase 1: text-message analysis
4.4.2.1 Data pre-processing
4.4.2.2 Applying lexical analysis
4.4.2.3 Generating mood-oriented comments
4.4.3 Phase 2: signature image analysis
4.4.3.1 Pre-processing: handwritten digitized signatures
4.4.3.2 Feature-extraction algorithms from signature images
4.4.3.3 Applying rule-based classifiers
4.5 Result and performance analysis
4.5.1 Phase 1: computerized analysis results on message dataset
4.5.1.1 Sample score graphs for Participants #1, and #11 to #14
4.5.2 Phase 2: computerized analysis results on signature dataset
4.5.3 Final output
4.6 Conclusion and future scope
Acknowledgments
References
5 Online social-network sensing models
5.1 Introduction
5.2 Importance of sensing in online social networks
5.2.1 Why social sensing
5.2.2 Areas of applications
5.3 Sensing modalities
5.3.1 Network analysis
5.3.1.1 Network properties
5.3.1.1.1 Density, distance, diameter
5.3.1.1.2 Degree distribution
5.3.1.1.3 Power-law exponent
5.3.1.1.4 Clustering coefficient
5.3.1.2 Global clustering coefficient
5.3.1.3 Local clustering coefficient
5.3.1.4 Average local clustering coefficient
5.3.1.4.1 Centrality
5.3.1.4.2 Homophily
5.3.1.4.3 Assortativity
5.3.1.5 Propagation models
5.3.2 Text analysis
5.3.2.1 Collection of information
5.3.2.2 Information retrieval
5.3.2.3 Text-mining
5.3.2.4 Sentence clustering
5.3.2.5 Sentiment analysis
5.3.3 Smartphone-sensor data analysis
5.3.3.1 Addiction
5.3.3.2 Cognitive absorption
5.4 Applications
5.4.1 Link prediction
5.4.2 Event prediction
5.4.3 Marketing
5.4.4 Influence maximization
5.4.5 Rumor blocking
5.4.6 Mental health
5.4.7 Social awareness
5.5 Conclusion
References
6 Learning sentiment analysis with word embeddings
6.1 Introduction
6.2 Word-embedding representations
6.2.1 Word2Vec
6.2.2 GloVe
6.3 Contextual word representations
6.3.1 ELMo (deep contextualized word representations)
6.3.2 BERT (pre-training of deep bidirectional transformers for language understanding)
6.4 Sentiment-analysis definition
6.5 Model architecture
6.5.1 MoCE architecture
6.5.2 Multigrained gcForest architecture
6.6 Experimental setup
6.6.1 Dataset description
6.6.2 Feature extraction
6.6.3 Training strategy
6.7 Results & discussion
6.7.1 Evaluation of embeddings using MoCE
6.7.2 Polarity identification using gcForest
6.8 Conclusion
References
7 An annotation system of a medical corpus using sentiment-based models for summarization applications
7.1 Introduction
7.2 Background work
7.3 Dataset preparation
7.4 Proposed annotation system
7.4.1 Medical-concept identification
7.4.2 Sentiment identification
7.5 Sentiment-based summarization
7.6 Results analysis
7.7 Conclusions
References
8 A comparative study of a novel approach with baseline attributes leading to sentiment analysis of Covid-19 tweets
8.1 Introduction
8.1.1 Motivation and objective
8.2 Related study
8.2.1 Groundwork of sentiment analysis
8.2.2 Sentiment analysis from the web and social media
8.2.3 Sentiment analysis in healthcare
8.2.4 Sentiment analysis on Covid-19
8.3 Comparisons of methodology on recent Covid-19-based NLP research
8.4 Proposed contribution
8.4.1 Preparing Covid-19 dataset
8.4.2 Data pre-processing
8.4.3 Attribute I: word-trend detection using n-gram
8.4.4 Attribute II: Covid-19-specific word identification
8.4.5 Sentiment classification
8.4.6 Sentiment modeling using bidirectional long short-term model
8.5 Benchmark comparison of recent NLP-based experiments on Covid-19
8.6 Discussion and future scope
8.7 Conclusion
References
9 Sentiment-aware design of human–computer interactions
9.1 Introduction and definitions
9.2 Relationship between HCI and sentiment analysis
9.3 Emotional intelligence
9.4 Sentiment-aware conversational systems
9.5 Methodological approaches
9.6 Future directions
9.7 Ethical considerations
References
10 Towards the analyzing of social-media data to assess the impact of long lockdowns on human psychology due to the Covid-19...
10.1 Introduction
10.1.1 Major contribution of the chapter
10.1.2 Organization of the chapter
10.2 Related work
10.3 Data layout
10.4 Our approach
10.5 Algorithm
10.5.1 Algorithm for analyzing the impact of long lockdowns on human psychology
10.5.2 Discussion
10.5.3 Performance analysis
10.5.4 A few findings
10.6 Conclusion and future scope
References
11 Conclusion
11.1 Introduction
11.2 Discussion
11.3 Concluding remarks
Index