no code implementations • 24 Jan 2023 • Daniel de Marchi, Matthew Welch, Michael Kosorok
In this paper we develop and present a novel theoretically justified hypothesis test of split quality for gradient boosted tree ensembles and demonstrate that using this method instead of the common penalty terms leads to a significant reduction in out of sample loss.
no code implementations • NAACL 2021 • Mingyue Shang, Tong Wang, Mihail Eric, Jiangning Chen, Jiyang Wang, Matthew Welch, Tiantong Deng, Akshay Grewal, Han Wang, Yue Liu, Yang Liu, Dilek Hakkani-Tur
In recent years, incorporating external knowledge for response generation in open-domain conversation systems has attracted great interest.