Part I Preliminaries1 Introduction to Context-Aware Machine Learning and Mobile Data
Analytics
1.1 Introduction
1.2 Context-Aware Machine Learning
1.3 Mobile Data Analytics
1.4 An Overview of this Book
1.5 Conclusion
References
2 Application Scenarios and Basic Structure for Context-Aware
Machine Learning Framework
2.1 Motivational Examples with Application Scenarios
2.2 Structure and Elements of Context-Aware Machine Learning
Framework
2.2.1 Contextual Data Acquisition
2.2.2 Context Discretization
2.2.3 Contextual Rule Discovery
2.2.4 Dynamic Updating and Management of Rules
2.3 Conclusion
References
3 A Literature Review on Context-Aware Machine Learning and
Mobile Data Analytics
3.1 Contextual Information
3.1.1 Definitions of Contexts
3.1.2 Understanding the Relevancy of Contexts
3.2 Context Discretization
3.2.1 Discretization of Time-Series Data
3.2.2 Static Segmentation
vii
viii Contents
3.2.3 Dynamic Segmentation
3.3 Rule Discovery
3.3.1 Association Rule Mining
3.3.2 Classification Rules
3.4 Incremental Learning and Updating
3.5 Identifying the Scope of Research
3.6 Conclusion
References
Part II Context-Aware Rule Learning and Management
4 Contextual Mobile Datasets, Pre-processing and Feature Selection
4.1 Smart Mobile Phone Data and Associated Contexts
4.1.1 Phone Call Log
4.1.2 Mobile SMS Log
4.1.3 Smartphone App Usage Log
4.1.4 Mobile Phone Notification Log
4.1.5 Web or Navigation Log
4.1.6 Game Log
4.1.7 Smartphone Life Log
4.1.8 Dataset Summary
4.2 Examples of Contextual Mobile Phone Data
4.2.1 Time-Series Mobile Phone Data
4.2.2 Mobile phone data with multi-dimensional contexts
4.2.3 Contextual Apps Usage Data
4.3 Data Preprocessing
4.3.1 Data Cleaning
4.3.2 Data Integration
4.3.3 Data Transformation
4.3.4 Data Reduction
4.4 Dimensionality Reduction
4.4.1 Feature Selection
4.4.2 Feature Extraction
4.4.3 Dimensionality Reduction Algorithms
4.5 Conclusion
References
5 Discretization of Time-Series Behavioral Data and Rule Generation
based on Temporal Context
5.1 Introduction
5.2 Requirements Analysis
5.3 Time-series Segmentation Approach
5.3.1 Approach Overview
5.3.2 Initial Time Slices Generation
5.3.3 Behavior-Oriented Segments Generation
Contents ix
5.3.4 Selection of Optimal Segmentation
5.3.5 Temporal Behavior Rule Generation using Time Segments
5.4 Effectiveness Comparison
5.5 Conclusion
References
6 Discovering User Behavioral Rules based on Multi-dimensional
Contexts
6.1 Introduction
6.2 Multi-dimensional Contexts in User Behavioral Rules
6.3 Requirements Analysis
6.4 Rule Mining Methodology
6.4.1 Identifying the Precedence of Context
6.4.2 Designing Association Generation Tree
6.4.3 Extracting Non-Redundant Behavioral Association Rules
6.5 Experimental Analysis
6.5.1 Effect on the Number of Produced Rules
6.5.2 Effect of Confidence Preference the Predicted Accuracy
6.5.3 Effectiveness Comparison
6.6 Conclusion
References
7 Recency-based Updating and Dynamic Management of Contextual
Rules
7.1 Introduction
7.2 Requirements Analysis
7.3 An Example of Recent Data
7.4 Identifying Optimal Period of Recent Log Data
7.4.1 Data Splitting
7.4.2 Association Generation
7.4.3 Score Calculation
7.4.4 Data Aggregation
7.5 Machine Learning based Behavioral Rule Generation and Management
7.6 Effectiveness Comparison and Analysis
7.7 Conclusion
References
Part III Application and Deep Learning Perspective
8 Context-Aware Rule-based Expert System Modeling
8.1 Structure of a Context-Aware Mobile Expert System
8.2 Context-Aware Rule Generation Methods
8.3 Context-Aware IF-THEN Rules and Discussion
8.3.1 IF-THEN Classification Rules
8.3.2 IF-THEN Association Rules
x Contents
8.4 Conclusion
References
9 Deep Learning for Contextual Mobile Data Analytics
9.1 Introduction
9.2 Contextual Data
9.3 Deep Neural Network Modeling
9.3.1 Model Overview
9.3.2 Input Layer
9.3.3 Hidden Layer(s)
9.3.4 Output Layer
9.4 Prediction Results of the Model
9.5 Conclusion
References
10 Context-Aware Machine Learning System: Applications and
Challenging Issues
10.1 Rule-based Intelligent Mobile Applications
10.2 Major Challenges and Research Issues
10.3 Concluding Remarks
References
