{"id":8906,"date":"2022-08-15T13:49:09","date_gmt":"2022-08-15T11:49:09","guid":{"rendered":"https:\/\/www.digitalfutures.kth.se\/?page_id=8906"},"modified":"2024-11-12T19:24:53","modified_gmt":"2024-11-12T18:24:53","slug":"decentralized-learning-second-order-online-and-robust-algorithms-with-convergence-guarantees","status":"publish","type":"page","link":"https:\/\/wpmu-tris.sys.kth.se\/digitalfutures\/research\/postdoc-fellowships\/completed-postdoc-fellowships\/decentralized-learning-second-order-online-and-robust-algorithms-with-convergence-guarantees\/","title":{"rendered":"Decentralized Learning: Second-order, Online and Robust Algorithms with Convergence Guarantees"},"content":{"rendered":"<div class=\"paragraphs\">\n<p>September 2022 &#8211; September 2024<\/p>\n<p><em>Objective<br \/>\n<\/em>My research plan focuses on the second-order, online, and robust algorithms for decentralized machine learning, aiming to propose efficient algorithms with convergence guarantees and study the applications. For example, distributed training with multi-core processors enables faster and more efficient training of machine learning models; wireless sensor networks serve for smart buildings and automatic driving in decentralized manners; hospitals cooperatively study disease prevention and treatment while protecting patients&#8217; privacy.<em><br \/>\n<\/em><\/p>\n<p><em>Background<br \/>\n<\/em>Big data over geographically distributed devices is the new oil of the digital future. However, we cannot mine it within data centres due to privacy preservation and communication efficiency issues. Instead, we resort to learning over networks. My research plans to develop second-order, online, and robust decentralized algorithms with convergence guarantees. This plan perfectly fits the themes of Digital Futures: trust, cooperation, and learning.\u00a0\u00a0<em><br \/>\n<\/em><\/p>\n<p><em>About the Digital Futures Postdoc Fellow<br \/>\n<\/em><strong>Jiaojiao Zhang<\/strong> received a B.E. degree in automation from the School of Automation, Harbin Engineering University, Harbin, China, in 2015 and a master\u2019s degree in control theory and control engineering from the University of Science and Technology\u00a0of China, Hefei, China, in 2018. She received her PhD in operations research from the Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong (CUHK), Hong Kong, in 2022. She received the Hong Kong PhD Fellowship Scheme (HKPFS) in August 2018. Her current research interests include distributed optimization and algorithm design.<\/p>\n<p><em>Main supervisor<br \/>\n<\/em><strong>Mikael Johansson<\/strong>, Professor, Division of Decision and Control Systems at KTH EECS<\/p>\n<p><em>Co-supervisor<br \/>\n<\/em><strong>Joakim Jald\u00e9n<\/strong>, Professor, Division of Information Science and Engineering at KTH<\/p>\n<p><strong>Watch the recorded presentation at the Digitalize in Stockholm 2023 event:<\/strong><\/p>\n<\/div>\n<div class=\"embed-wrapper\"><iframe loading=\"lazy\" title=\"POSTDOC POSTER SESSION 2: Decentralized Learning: Second-order, Online and Robust Algorithms with...\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/T--HuGOCOts?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>September 2022 &#8211; September 2024: Jiaojiao Zhang,\u00a0The Chinese University of Hong Kong, runs the project Decentralized Learning: Second-order, Online and Robust&#8230;<\/p>\n","protected":false},"author":46,"featured_media":0,"parent":13342,"menu_order":184,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-8906","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Decentralized Learning: Second-order, Online and Robust Algorithms with Convergence Guarantees &#8212; Digital Futures<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Decentralized Learning: Second-order, Online and Robust Algorithms with Convergence Guarantees &#8212; Digital Futures\" \/>\n<meta property=\"og:description\" content=\"September 2022 - September 2024: Jiaojiao Zhang,\u00a0The Chinese University of Hong Kong, runs the project Decentralized Learning: Second-order, Online and Robust...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wpmu-tris.sys.kth.se\/digitalfutures\/research\/postdoc-fellowships\/completed-postdoc-fellowships\/decentralized-learning-second-order-online-and-robust-algorithms-with-convergence-guarantees\/\" \/>\n<meta property=\"og:site_name\" content=\"Digital Futures\" \/>\n<meta property=\"article:modified_time\" content=\"2024-11-12T18:24:53+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/wpmu-tris.sys.kth.se\\\/digitalfutures\\\/research\\\/postdoc-fellowships\\\/completed-postdoc-fellowships\\\/decentralized-learning-second-order-online-and-robust-algorithms-with-convergence-guarantees\\\/\",\"url\":\"https:\\\/\\\/wpmu-tris.sys.kth.se\\\/digitalfutures\\\/research\\\/postdoc-fellowships\\\/completed-postdoc-fellowships\\\/decentralized-learning-second-order-online-and-robust-algorithms-with-convergence-guarantees\\\/\",\"name\":\"Decentralized Learning: Second-order, Online and Robust Algorithms with Convergence Guarantees &#8212; 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