{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,12]],"date-time":"2025-04-12T22:16:57Z","timestamp":1744496217526},"reference-count":29,"publisher":"World Scientific Pub Co Pte Ltd","issue":"05","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Unc. Fuzz. Knowl. Based Syst."],"published-print":{"date-parts":[[2020,10]]},"abstract":"Regression analysis estimates the relationships among variables which has been widely used in growth curves, and cross-validation as a model selection method assesses the generalization ability of regression models. Classical methods assume that the observation values of variables are precise numbers while in many cases data are imprecisely collected. So this paper explores the Chapman-Richards growth model which is one of the widely used growth models with imprecise observations under the framework of uncertainty theory. The least squares estimates of unknown parameters in this model are given. Moreover, cross-validation with imprecise observations is proposed. Furthermore, estimates of the expected value and variance of the uncertain error using residuals are given. In addition, ways to predict the value of response variable with new observed values of predictor variables are discussed. Finally, a numerical example illustrates our approach.<\/jats:p>","DOI":"10.1142\/s0218488520500336","type":"journal-article","created":{"date-parts":[[2020,9,3]],"date-time":"2020-09-03T11:21:10Z","timestamp":1599132070000},"page":"769-783","source":"Crossref","is-referenced-by-count":35,"title":["Cross-Validation for the Uncertain Chapman-Richards Growth Model with Imprecise Observations"],"prefix":"10.1142","volume":"28","author":[{"given":"Zhe","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Mathematical Sciences, Tsinghua University, Beijing 100084, China"}]},{"given":"Lifen","family":"Jia","sequence":"additional","affiliation":[{"name":"School of Management and Engineering, Capital University of Economics and Business, Beijing 100070, China"}]}],"member":"219","published-online":{"date-parts":[[2020,9,30]]},"reference":[{"key":"p_3","first-page":"279","volume":"6","author":"Edgeworth F. 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