Szukana fraza: [Abstract = "The aim of this paper is to deal with the important gap of the uncertainties of return products. Therefore, we discuss the forecasting method of return products which have their own open\-loop supply chain. We develop an integrated two\-phase methodology to cope with the closed\-loop supply chain design and planning problem. In the first phase, an Adaptive Network Based Fuzzy Inference System \(ANFIS\) is presented to handle the uncertainties of the amounts of return product and to determine the forecasted return rates."]