{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/variable-selection-and-task-grouping-for","title":"Variable Selection and Task Grouping for Multi-Task Learning","arxiv_id":"1802.04676","date":"2018-02-13","proceeding":null,"authors":["Jun-Yong Jeong","Chi-Hyuck Jun"],"abstract":"We consider multi-task learning, which simultaneously learns related\nprediction tasks, to improve generalization performance. We factorize a\ncoefficient matrix as the product of two matrices based on a low-rank\nassumption. These matrices have sparsities to simultaneously perform variable\nselection and learn and overlapping group structure among the tasks. The\nresulting bi-convex objective function is minimized by alternating optimization\nwhere sub-problems are solved using alternating direction method of multipliers\nand accelerated proximal gradient descent. Moreover, we provide the performance\nbound of the proposed method. The effectiveness of the proposed method is\nvalidated for both synthetic and real-world datasets.","url_abs":"http://arxiv.org/abs/1802.04676v1","url_pdf":"http://arxiv.org/pdf/1802.04676v1.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"abstracts"},"code_links":[{"paper_slug":"variable-selection-and-task-grouping-for","repo_url":"https://github.com/JunYongJeong/VSTG-MTL","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[{"task_slug":"multi-task-learning","task_name":"Multi-Task Learning"},{"task_slug":"variable-selection","task_name":"Variable Selection"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}