ScatterLab (https://scatterlab.co.kr/)'s “Luda” is an open-domain chatbot learned based on billions of KakaoTalk conversation data, and was developed so that anyone can chat through Facebook Messenger.
The video released by ScatterLab CEO Jong-yoon Kim at DEVIEW 2020 introduces a lot of things that he was worried about while developing Luda. It's long, but if you're interested, I recommend taking a look.
Video link: https://tv.naver.com/v/16968268?openType=nmp
