{"588706":{"#nid":"588706","#data":{"type":"event","title":"DOS Seminar - Soomin Lee","body":[{"value":"\u003Cp\u003ETITLE: Communication-Efficient Decentralized and Stochastic Optimization\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EABSTRACT:\u003C\/p\u003E\r\n\r\n\u003Cp\u003EOptimization problems arising in decentralized multi-agent systems have gained significant attention in the context of cyber-physical, communication, power, and robotic networks combined with privacy preservation, distributed data mining and processing issues. The distributed nature of the problems is inherent due to partial knowledge of the problem data (i.e., a portion of the cost function or a subset of the constraints is known to different entities in the system), which necessitates costly communications among neighboring agents. In this talk, we present a new class of decentralized first-order methods for nonsmooth and stochastic optimization problems which can significantly reduce the number of inter-node communications. Our major contribution is the development of decentralized communication sliding methods, which can skip inter-node communications while agents solve the primal subproblems iteratively through linearizations of their local objective functions.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EBio\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003ESoomin Lee is a postdoc fellow in industrial and systems engineering at Georgia Tech. She received her Ph.D. in Electrical and Computer Engineering (2013) and Master\u0026#39;s in Computer Science (2012) from the University of Illinois, Urbana-Champaign. After graduation, she joined in Duke Robotics Group as a postdoc associate. In 2009, she worked as an assistant research officer at the Advanced Digital Science Center (ADSC) in Singapore. She is a recipient of the NSF fellowship program for enhancing partnership with industry. Her research interests include control and optimization of various distributed engineering systems interconnected over complex networks, large-scale machine learning for big data analytics as well as theoretical optimization.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"DOS Seminar - Soomin Lee"}],"uid":"27187","created_gmt":"2017-03-14 12:31:26","changed_gmt":"2017-04-13 21:12:24","author":"Anita Race","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2017-03-17T14:00:00-04:00","event_time_end":"2017-03-17T15:00:00-04:00","event_time_end_last":"2017-03-17T15:00:00-04:00","gmt_time_start":"2017-03-17 18:00:00","gmt_time_end":"2017-03-17 19:00:00","gmt_time_end_last":"2017-03-17 19:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"1242","name":"School of Industrial and Systems Engineering (ISYE)"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"78751","name":"Undergraduate students"},{"id":"174045","name":"Graduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}