| 2018 | EMNLP | Out-of-domain Detection based on Generative Adversarial Network. | Seonghan Ryu, Sangjun Koo, Hwanjo Yu, Gary Geunbae Lee |
| 2015 | ASRU | Implementation of generic positive-negative tracker in extensible dialog system. | Sangjun Koo, Seonghan Ryu, Gary Geunbae Lee |
| 2015 | SP | Scalable Summary-State POMDP Hybrid Dialog System for Multiple Goal Drifting Requests and Massive Slot Entity Instances. | Sangjun Koo, Seonghan Ryu, Kyusong Lee, Gary Geunbae Lee |
| 2015 | SP | Detecting Multiple Domains from User's Utterance in Spoken Dialog System. | Seonghan Ryu, Jaiyoun Song, Sangjun Koo, Soonchoul Kwon, Gary Geunbae Lee |
| 2015 | SIGdial | Conversational Knowledge Teaching Agent that uses a Knowledge Base. | Kyusong Lee, Paul Hongsuck Seo, Junhwi Choi, Sangjun Koo, Gary Geunbae Lee |
| 2014 | Interspeech | ASR Independent Hybrid Recurrent Neural Network Based Error Correction for Dialog System Applications. | Junhwi Choi, Seonghan Ryu, Kyusong Lee, Yonghee Kim, Sangjun Koo, Jeesoo Bang, Seonyeong Park, Gary Geunbae Lee |
| 2014 | Interspeech | Acquisition and Use of Long-Term Memory for Personalized Dialog Systems. | Yonghee Kim, Jeesoo Bang, Junhwi Choi, Seonghan Ryu, Sangjun Koo, Gary Geunbae Lee |