{"617210":{"#nid":"617210","#data":{"type":"event","title":"IEEE SPS Atlanta Lecture - Prof. John Lipor","body":[{"value":"\u003Ch2\u003E\u003Cstrong\u003ESubspace Clustering using Ensembles of K-Subspaces\u003C\/strong\u003E\u003C\/h2\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EProf. John Lipor\u003Cbr \/\u003E\r\nAssistant Professor at\u0026nbsp;Portland State University\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract.\u0026nbsp;\u003C\/strong\u003EIn this lecture we will discuss a novel approach to the subspace clustering problem that leverages ensembles of the K-subspaces (KSS) algorithm with random initializations. We will extend existing results in subspace clustering to show that correct clustering can be achieved by any algorithm that obtains measurements of any monotonic function of the inner product between points. We then show that a single iteration of KSS with random initialization produces such a measurement, and hence our algorithm can provably recover subspaces under the same conditions as state-of-the-art algorithms. The finding is, to the best of our knowledge, the first recovery guarantee for evidence accumulation clustering and for KSS variants. It also provides insight into random initializations of subspace arrangements.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EBiography.\u0026nbsp;J\u003C\/strong\u003Eohn Lipor is an assistant professor in Electrical and Computer Engineering at Portland State University. He received his Ph.D. in Electrical Engineering from the University of Michigan, Ann Arbor in 2017 and was an awardee of the NSF Graduate Research Fellowship. He received his M.S. in Electrical Engineering from the King Abdullah University of Science and Technology (KAUST) in 2013 and his B.S. in Electrical Engineering from the University of Wisconsin, Madison in 2009. His research interests include active learning and subspace methods, with an emphasis on problems in environmental sensing and monitoring.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EParking.\u0026nbsp;\u003C\/strong\u003EBest parrking option is to use the Centergy Parking garage accessible from Spring Street. Optionally, you can park at the Georgia Tech Hotel guest parking or in any metered spot on Tech Square\u003C\/p\u003E\r\n\r\n\u003Ch3\u003E\u003Cstrong\u003EAgenda\u003C\/strong\u003E\u003C\/h3\u003E\r\n\r\n\u003Cul\u003E\r\n\t\u003Cli\u003E\r\n\t\u003Cp\u003E12:00 PM - 12:05 PM - Introductions\u003C\/p\u003E\r\n\t\u003C\/li\u003E\r\n\t\u003Cli\u003E\r\n\t\u003Cp\u003E12:05 PM - 12:45 PM -\u0026nbsp;\u003Cstrong\u003ESeminar by Prof. John Lipor\u003C\/strong\u003E\u003C\/p\u003E\r\n\t\u003C\/li\u003E\r\n\t\u003Cli\u003E\r\n\t\u003Cp\u003E12:45 PM - 1:00 PM - Discussion and Q\u0026amp;A\u003C\/p\u003E\r\n\t\u003C\/li\u003E\r\n\t\u003Cli\u003E\r\n\t\u003Cp\u003E\u0026nbsp;1:00 PM -\u0026nbsp; 1:30 PM - Reception and networking\u003C\/p\u003E\r\n\t\u003C\/li\u003E\r\n\u003C\/ul\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EThe Atlanta Signal Processing Chapter is honored to host Prof. John Lipor from Portland State University\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EProfessor Lipor will present a lecture on the topic of subspace clustering. Prof.\u0026nbsp;Lipor is an Assistant Professor at Portland State University in the Electrical and Computer Engineering department. His research focuses on the design and analysis of machine learning and signal processing algorithms, with applications in environmental sensing and monitoring.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EFor a list of publications, check out his\u0026nbsp;\u003Cstrong\u003E\u003Ca href=\u0022https:\/\/scholar.google.com\/citations?user=Bk6elBcAAAAJ\u0026amp;hl=en\u0022\u003EGoogle Scholar Profile\u003C\/a\u003E\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EPLEASE RSVP to the link:\u0026nbsp;\u003Ca href=\u0022https:\/\/events.vtools.ieee.org\/m\/189435\u0022\u003Ehttps:\/\/events.vtools.ieee.org\/m\/189435\u003C\/a\u003E\u0026nbsp;\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"Join the IEEE Signal Processing Chapter of Atlanta to welcome Prof. John Lipor"}],"uid":"33987","created_gmt":"2019-02-03 23:42:08","changed_gmt":"2019-02-03 23:55:13","author":"amedda3","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-02-12T12:00:00-05:00","event_time_end":"2019-02-12T13:30:00-05:00","event_time_end_last":"2019-02-12T13:30:00-05:00","gmt_time_start":"2019-02-12 17:00:00","gmt_time_end":"2019-02-12 18:30:00","gmt_time_end_last":"2019-02-12 18:30:00","rrule":null,"timezone":"America\/New_York"},"extras":["free_food"],"hg_media":{"617211":{"id":"617211","type":"image","title":"john lipor","body":null,"created":"1549237869","gmt_created":"2019-02-03 23:51:09","changed":"1549237894","gmt_changed":"2019-02-03 23:51:34","alt":"","file":{"fid":"234910","name":"Lipor3-01.png","image_path":"\/sites\/default\/files\/images\/Lipor3-01.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/Lipor3-01.png","mime":"image\/png","size":108868,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/Lipor3-01.png?itok=9CcjCNmE"}}},"media_ids":["617211"],"related_links":[{"url":"https:\/\/events.vtools.ieee.org\/m\/189435","title":"IEEE Event Website and RSVP"}],"groups":[],"categories":[],"keywords":[{"id":"180373","name":"Technical lecture"},{"id":"177270","name":"IEEE Signal Processing Society"},{"id":"9167","name":"machine learning"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"177814","name":"Postdoc"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EAlessio Medda, Chair, SPS Atlanta Chapter\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Ca href=\u0022mailto:alessio.medda@gatech.edu\u0022\u003Ealessio.medda@gatech.edu\u003C\/a\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E404-407-8217\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}