Beran, Jan; Feng, Yuanhua; Ocker, Dirk - Institut für Wirtschafts- und Sozialstatistik, … - 1999
Recent results on so-called SEMIFAR models introduced by Beran (1997) are discussed. The nonparametric deterministic trend is estimated by a kernel method. The differencing and fractional differencing parameters as well as the autoregressive coefficients are estimated by an approximate maximum...