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Editorial Board Member Senior Editor, IEEE Journal of Selected Topics in Signal Processing , since 2020. Associate Editor, IEEE Trans. on Image Processing, since 2018. Associate Editor, IEEE Trans. on Circuits and Systems for Video Technology, since 2018. Associate Editor, ACM Trans. on Multimedia Computing, Communications, and Applications, since 2016. Associate Editor, ACM Trans. on Intelligent Systems and Technology, since 2017. Associate Editor, Pattern Recognition, since 2017. Associate Editor, IEEE Multimedia Magazine, 2017-2018. Associate Editor, IEEE Trans. on Multimedia, 2013-2017. Associate Editor, Multimedia Systems, 2013-2017. Technical Committee Member Executive Committee Member of ACM SIGMM, since 2019. Steering Committee Member of IEEE ICME (SPS Representative), 2015-2017. Steering Committee Co-chair, ACM Multimedia Asia Conference (MM Asia), since 2018 Director of Conference, ACM SIGMM China Chapter, 2016-2018. Advisory Member of IEEE Signal Processing Society (SPS) Multimedia Signal Processing TC (MMSP), since 2021. Member of IEEE Signal Processing Society (SPS) Multimedia Signal Processing TC (MMSP), 2013-2015, 2017-2019. Member of IEEE Signal Processing Society (SPS) Image, Video, and Multidimensional Signal Processing TC (IVMSP), 2017-2021. Member of IEEE Circuits and Systems Society (CAS) Multimedia Systems & Applications TC (MSA), 2013-2019. IEEE Signal Processing Society (SPS) Conference Board, Industry Subcommittee, 2016-2017. Guest Editor ACM Trans. on Multimedia Computing, Communications, and Applications, Special Issue on “Big Data, Machine Learning and AI Technologies for Art and Design,” 2018. Pattern Recognition, Special Issue on “Video Analytics with Deep Learning ,” 2016. Multimedia Tools and Applications, Special Issue on “Learning Multimedia for Real World Applications,” Sept. 2014. Neurocomputing, Special Issue on “Social Media Analytics and Learning ,” Nov. 2013. IEEE Trans. on Multimedia, Special Issue on “Socio-Mobile Media Analysis and Retrieval ,” Feb. 2013. IEEE Multimedia, Special Issue on “Knowledge Discovery over Community-Contributed Multimedia Data: Opportunities and Challenges ,” 2010. Journal of Visual Communication and Image Representation, Special Issue on “Large-Scale Image and Video Search: Challenges, Technologies, and Trends ,” 2009. Multimedia Systems, Special Issue on “Multimedia Intelligent Services and Technologies ,” 2009. Professor Adjunct Professor, Yonsei University, Korea, Sept 2018 – Sept 2020. Adjunct Professor, The Chinese University of Hong Kong (Shenzhen), since 2018. Guest Professor (Ph.D. supervisor), University of Science and Technology of China (USTC), Hefei, China, since 2012. Guest Professor, Sun Yat-Sen University (SYSU), Guangzhou, China, 2015-2018. Guest Professor, Fudan University , Shanghai, China, 2017-2020. Conference Chair General Co-chair , IEEE International Conference on Multimedia & Expo (ICME), Shanghai, 2019.Technical Program Co-chair , ACM International Conference on Multimedia (ACM MM), Seoul, Korea, 2018.Technical Program Co-chair , International Workshop on Content-Based Multimedia Indexing (CBMI), Firenze, Italy, 2017.Technical Program Co-chair (SPS Representative), IEEE International Conference on Multimedia & Expo (ICME), Turin, Italy, 2015.Technical Program Co-chair , IEEE International Workshop on Multimedia Signal Processing (MMSP), Xiamen, China, 2015.General Co-chair , International Conference on Internet Multimedia Computing and Service (ICIMCS), Huangshan, China, 2013.Technical Program Co-chair , International MultiMedia Modeling Conference (MMM ), Huangshan, China, 2013.Conference Organizing Committee Member Grand Challenge Co-chair, IEEE International Conference on Acoustics, Speech & Signal Processing (ICASSP), Toronto, 2021. Workshop Co-chair, International Conference on Pattern Recognition (ICPR), Milan, Italy, 2020. Tutorial Co-chair, IEEE International Conference on Image Processing (ICIP), Taipei, 2019. Grand Challenge Co-chair, ACM International Conference on Multimedia (ACM MM), Nice, France, 2019. Open Source Software Competition Co-chair, ACM International Conference on Multimedia (ACM MM), The Netherlands, 2016. Open Source Software Competition Co-chair, ACM International Conference on Multimedia (ACM MM), Brisbane, Australia, 2015. Workshop Co-chair, IEEE International Conference on Multimedia & Expo (ICME), Chengdu, China, 2014. Video Program Co-chair, ACM International Conference on Multimedia (ACM MM), Nara, Japan, 2012. Workshop Co-chair, IEEE International Conference on Multimedia & Expo (ICME), Melbourne, Australia, 2012. Travel Grants Co-chair, ACM International Conference on Multimedia (ACM MM), Scottsdale, Arizona, 2011. Conference Area Chairs or Senior Program Committee Members ACM International Conference on Multimedia (ACM MM), Area Chair/SPC Member [2010, 2012, 2013, 2015, 2017, 2019, 2020]. IEEE International Conference on Multimedia & Expo (ICME), Area Chair [2013, 2014, 2016, 2017]. ACM International Conference on Information and Knowledge Management (CIKM), Area Chair [2014]. ACM International Conference on Research and Development in Information Retrieval (SIGIR), SPC Member [2018, 2019, 2020]. IEEE International Symposium on Circuits and Systems (ISCAS), Area Chair [2016]. IEEE International Conference on Image Processing (ICIP), Area Chair [2015, 2016]. IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), Area Chair [2021]. International Joint Conference on Artificial Intelligence (IJCAI), SPC Member [2019]. IAPR International Conference on Pattern Recognition (ICPR), Area Chair [2016].
