Big Data computing and service is becoming a very hot research and application subject in academic research, industry community, and government services. Today, with the fast advance of big data science, analytics and technology, big data researchers and application professionals are able to access to diverse data mining and machine learning algorithms, open-source platforms & tools, and cloud DB technology and big data access technologies. According to IDC's prediction in 2013, the market for big data will reach $16.1 billion in 2014, growing 6 times faster than the overall IT market. This kind of business analysis reports brings great business opportunities and strong research interests among both academic and industry communities. Recently, a number of IEEE international conferences are organized focusing on Big Data Computing, Big Data Sciences and Analytics, and Big Data Technology and Engineering. Since emergent big data computing and services can be used in many disciplines and diverse applications, including business management, library science, energy and environment, education, biomedical, and healthcare and life science, social media and networking, smart city and travel, and transportation, etc..