@article{Ohnishi:2019Ow, author = "Ohnishi, Akira and Mori, Yuto and Kashiwa, Kouji", title = "{Path optimization method with use of neural network for the sign problem in field theories}", doi = "10.22323/1.334.0023", journal = "PoS", year = 2019, volume = "LATTICE2018", pages = "023" }