{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T16:39:52Z","timestamp":1778258392527,"version":"3.51.4"},"publisher-location":"California","reference-count":0,"publisher":"International Joint Conferences on Artificial Intelligence Organization","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,8]]},"abstract":"<jats:p>Feature selection plays a critical role in data mining,\ndriven by increasing feature dimensionality in target problems. In this paper, we propose a new criterion for\ndiscriminative feature selection, worst-case discriminative feature selection (WDFS).\nUnlike Fisher Score and other methods based on the discriminative criteria\nconsidering the overall (or average) separation\nof data, WDFS adopts a new perspective called\nworst-case view which arguably is more\nsuitable for classification applications. Specifically, WDFS directly maximizes the ratio of the\nminimum of between-class variance of all class pairs over the maximum of within-class\nvariance, and thus it duly considers the separation of all classes. Otherwise, we\ntake a greedy strategy by finding one feature at a time, but it is very easy to\nimplement. Moreover, we also utilize the correlation between\nfeatures to help reduce the redundancy and extend WDFS to uncorrelated WDFS (UWDFS).\nTo evaluate the effectiveness of the proposed algorithm, we conduct\nclassification experiments on many real data sets. In the experiment, we respectively\nuse the original features and the score vectors of features over all class\npairs to calculate the correlation coefficients, and analyze the experimental\nresults in these two ways. Experimental results demonstrate the effectiveness\nof WDFS and UWDFS.<\/jats:p>","DOI":"10.24963\/ijcai.2019\/412","type":"proceedings-article","created":{"date-parts":[[2019,7,28]],"date-time":"2019-07-28T07:46:05Z","timestamp":1564299965000},"page":"2973-2979","source":"Crossref","is-referenced-by-count":12,"title":["Worst-Case Discriminative Feature Selection"],"prefix":"10.24963","author":[{"given":"Shuangli","family":"Liao","sequence":"first","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi\u2019an, 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Quanxue","family":"Gao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi\u2019an, 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Feiping","family":"Nie","sequence":"additional","affiliation":[{"name":"School of Computer Science, OPTIMAL, Northwestern Polytechnical University, Xi\u2019an, 710072, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yang","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi\u2019an, 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiangdong","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi\u2019an, 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10584","event":{"name":"Twenty-Eighth International Joint Conference on Artificial Intelligence {IJCAI-19}","theme":"Artificial Intelligence","location":"Macao, China","acronym":"IJCAI-2019","number":"28","sponsor":["International Joint Conferences on Artificial Intelligence Organization (IJCAI)"],"start":{"date-parts":[[2019,8,10]]},"end":{"date-parts":[[2019,8,16]]}},"container-title":["Proceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence"],"original-title":[],"deposited":{"date-parts":[[2019,7,28]],"date-time":"2019-07-28T07:49:07Z","timestamp":1564300147000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ijcai.org\/proceedings\/2019\/412"}},"subtitle":[],"proceedings-subject":"Artificial Intelligence Research Articles","short-title":[],"issued":{"date-parts":[[2019,8]]},"references-count":0,"URL":"https:\/\/doi.org\/10.24963\/ijcai.2019\/412","relation":{},"subject":[],"published":{"date-parts":[[2019,8]]}}}