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Using the modified loss function, the derivation of instance-based cost-sensitive extensions of AdaBoost, RealBoost and GentleBoost are developed which are termed as ICSAdaBoost, ICSRealBoost and ICSGentleBoost, respectively. In this research, a new instance-based cost generation method is proposed instead of doing this expensive process by experts. Thus, each sample takes two cost values; a class cost and a sample cost. The first cost is equally assigned to all samples of each class while the second cost is generated according to the probability of each sample within its class probability density function. Experimental results of the proposed schemes imply 12% enhancement in terms of [Formula: see text]-measure and 13% on cost-per-sample over a variety of UCI datasets, compared to the state-of-the-art methods. The significant priority of the proposed method is supported by applying the pair of [Formula: see text]-tests to the results. <\/jats:p>","DOI":"10.1142\/s0218001420500020","type":"journal-article","created":{"date-parts":[[2019,5,9]],"date-time":"2019-05-09T02:38:40Z","timestamp":1557369520000},"page":"2050002","source":"Crossref","is-referenced-by-count":7,"title":["Instance-Based Cost-Sensitive Boosting"],"prefix":"10.1142","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8162-5744","authenticated-orcid":false,"given":"Ensieh","family":"Sharifnia","sequence":"first","affiliation":[{"name":"CSE & IT Dept., School of Electrical and Computer Engineering, Shiraz University, Campus#2, MollaSadra St., Shiraz 71348-51154, Iran"}]},{"given":"Reza","family":"Boostani","sequence":"additional","affiliation":[{"name":"CSE & IT Dept., School of Electrical and Computer Engineering, Shiraz University, Campus#2, MollaSadra St., Shiraz 71348-51154, Iran"}]}],"member":"219","published-online":{"date-parts":[[2019,7,22]]},"reference":[{"key":"S0218001420500020BIB001","doi-asserted-by":"publisher","DOI":"10.1016\/j.ins.2016.04.019"},{"key":"S0218001420500020BIB002","doi-asserted-by":"publisher","DOI":"10.1109\/TIFS.2012.2209876"},{"key":"S0218001420500020BIB003","doi-asserted-by":"publisher","DOI":"10.1016\/j.patcog.2014.10.032"},{"issue":"11","key":"S0218001420500020BIB004","first-page":"2526","volume":"33","author":"Bian J.","year":"2012","journal-title":"J. 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