Kata kunci: regresi nonparametrik, B-Spline, MARS, koefisien determinasi.doi:10.9744/JTI.8.1.PP.I Nyoman BudiantaraFredi SuryadiBambang Widjanarko OtokSuryo GuritnoInstitute of Research and Community Outreach - Petra Christian UniversityJurnal Teknik Industri...