Forecasting Warping Deformation Using Multivariate Thermal Time Series and K-Nearest Neighbors in Fused Deposition Modeling

Donghwan Song 1 , Adrian Matias Chung Baek 2 , Jageon Koo 2 , Moise Busogi 3 and Namhun Kim 2,* 

1 Department of System Design and Control Engineering, Ulsan National Institute of Science and Technology, Ulsan 44776, Korea; blue1028@unist.ac.kr 

2 Department of Mechanical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44776, Korea; adrianchung@unist.ac.kr (A.M.C.B.); wkrjsrn@unist.ac.kr (J.K.) 

3 Department of Electrical and Computer Engineering, Carnegie Mellon University Africa, Regional ICT Center of Excellence Bldg, Kigali Innovation City, Bumbogo BP 6150, Kigali 20093, Rwanda; busogi@cmu.edu 

* Correspondence: nhkim@unist.ac.kr 

Received: 24 November 2020; Accepted: 14 December 2020; Published: 15 December 2020