Smart city: Smart City Technology Urban grid management Urban Modeling and Application Intelligent Transportation System data processing Cloud computing and the Internet of Things Communication signal transmission Communication noise reduction technology Communication noise reduction technology Green Communication Technology Big data: Scientific research based on big data Algorithms and Programming Techniques for Big Data Processing Big Data Search Algorithm and System Big data analysis in mobile and ubiquitous computing Data Mining and Machine Learning Tools Big data analysis management Big data analysis, search and mining Big Data Services Big data encryption Big Data Open Platform Big data quality and source control Big Data Toolkit Technologies, models, and algorithms of big data Tools and systems for big data Big data visualization analysis Big data hardware/software infrastructure Intelligent data processing Machine learning and big data artificial intelligence Knowledge Discovery and Data Mining