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This proceedings volume contains selected papers from the Fourth International Conference on Big Data Applications and Services (BigDAS 2017), held in Tashkent, Uzbekistan on August 15-18, 2017. Big data has become a core technology providing innovative solutions in many fields including social media, healthcare and manufacturing. The Fourth International Conference on Big Data Applications and Services (BigDAS 2017) presented innovative results, encouraged academic and industrial interaction, and promoted collaborative research in the field of big data worldwide. The conference was organized by the Korea Big Data Services Society and National University of Uzbekistan.

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Chapter 1: Big Data Architectures Chapter 2: Big Data Models and Algorithms Chapter 3: Big Data Search and Mining Chapter 4: Big Data Visualization Chapter 5: Social Media Chapter 6: Recommendation Systems Chapter 7: IoT and Big Data Chapter 8: Smart Factory and Big Data Chapter 9: Smart Healthcare and Medicine Chapter 10: Big Data and IoT Standardization Chapter 11: Big Data for Public Sector Chapter 12: Big Data and Privacy Chapter 13: Big Data Applications

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Wookey Lee received the B.S., M.S., and Ph.D. from Seoul National University, Korea, and the M.S.E. degree from Carnegie Mellon University, USA. He currently is a Professor in Inha University, Korea. He has served as PC member and chair for many conferences such as CIKM, IEEE DEST, DASFAA, ICDE, VLDB, etc, and also as executive committee of IEEE TCDE. He won the best paper awards in IEEE DESC, ACM BigDas, KORMS and KIISE. He is the EIC of Journal of Information Technology and Architecture and the Big Data Service Journal, and an associate editor for WWW Journal. His research interests include Graph DB, Patent Information, Privacy, and Data Warehousing.

Carson K. Leung received his B.Sc.(Hons.), M.Sc., and Ph.D. from The University of British Columbia, Vancouver, Canada. He is currently a Professor at the University of Manitoba, Canada. He is also a Senior Member of the ACM and the IEEE. He has published more than 190 papers on the topics of his research interests, which include big data mining and analysis (including data analytics, data science & business intelligence solutions), databases, data management, data warehousing, data visualization and visual analytics, health and bioinformatics, Web technology and services, as well as social computing and social network analysis. He has also served as a PC member and an Organizing Committee member of many conferences such as ACM CIKM, ACM SIGMOD, IIEEE/ACM ASONAM, EEE DSAA, and IEEE ICDM.

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