About Me

I obtained a Master’s Degree in computer science from the Korea University. My advisor is Prof. Heuiseok Lim. Currently, I’m working for Naver Search since Dec 20, 2021.

[Google Scholar]: link


Research Interest

Dialogue System, Summarization

Academic Activities


International Publications


You Truly Understand What I Need : Intellectual and Friendly Dialog Agents grounding Persona and Knowledge
Jungwoo Lim, Myugnhoon Kang, Yuna Hur, Seung Won Jeong, Jinsung Kim, Yoonna Jang, Dongyub Lee, Hyesung Ji, DongHoon Shin, Seungryong Kim and Heuiseok Lim
EMNLP 2022 (findings)

Towards Filling the Gap between Written and Spoken Dialogues for Multi-Domain Dialogue State Tracking
Taesun Whang, Jungwoo Limm, Dongyub Lee
DSTC10, AAAI 2022


Capturing Speaker Incorrectness: Speaker-Focused Post-Correction for Abstractive Dialogue Summarization
Dongyub Lee, Jungwoo Lim, Taesun Whang, chanhee lee, Seungwoo Cho, Mingun Park and Heuiseok Lim
NewSum, EMNLP 2021

Auxiliary Sequence Labeling Tasks for Disfluency Detection
Dongyub Lee, Byeongil Ko, Myeong Cheol Shin, Taesun Whang, Daniel Lee, Eun Hwa Kim, EungGyun Kim, Jaechoon Jo

Deep Context- and Relation-Aware Learning for Aspect-based Sentiment Analysis
{Shinhyeok Oh, Dongyub Lee}*, Taesun Whang, IlNam Park, Gaeun Seo, EungGyun Kim, Harksoo Kim [*equal contribution]
ACL 2021 (main)

Do Response Selection Models Really Know What’s Next? Utterance Manipulation Strategies for Multi-turn Response Selection
Taesun Whang*, Dongyub Lee*, Dongsuk Oh, Chanhee Lee, Kijong Han, Dong-hun Lee, Saebyeok Lee [*equal contribution]
AAAI 2021


Reference and Document Aware Semantic Evaluation Methods for Korean Language Summarization
Dongyub Lee, Myeongcheol Shin, Taesun Whang, Seungwoo Cho, Byeongil Ko, Daniel Lee, Eunggyun Kim, Jaechoon Jo

An Effective Domain Adaptive Post-Training Method for BERT in Response Selection
Taesun Whang, Dongyub Lee, Chanhee Lee, Kisu Yang, Dongsuk Oh, HeuiSeok Lim
Interspeech 2020

Development of Fashion Product Retrieval and Recommendations Model Based on Deep Learning
Jaechoon Jo, Seolhwa Lee, Chanhee Lee, Dongyub Lee, Heuiseok Lim
Electronics 9.3 (Mar. 2020) p. 508. Multidisciplinary Digital Publishing Institute, 2020.


Integrating breakdown detection into dialogue systems to improve knowledge management: encoding temporal utterances with memory attention

EmotionX-KU: BERT-Max based Contextual Emotion Classifier
Kisu Yang, Dongyub Lee, Taesun Whang, Seolhwa Lee, Heuiseok Lim
IJCAI 2019 Workshop on the 7th Natural Language Processing for Social Media (Shared Task, EmotionX), 2019, Macau.

Enhanced Sequential Representation Augmented with Utterance-level Attention for Response Selection
Taesun Whang, Dongyub Lee, Chanhee Lee, Heuiseok Lim
AAAI 2019 Workshop on Dialogue System Technology Challenges 7 (DSTC7), 2019, Hawaii, USA.


Character-Level Feature Extraction with Densely Connected Networks
Chanhee Lee, Young-Bum Kim, Dongyub Lee, Heuiseok Lim

Domestic Publications

  1. Adversarial Learning for Natural Language Understanding
    Dongyub Lee, Taesun Whang, Chanhee Lee, Heuiseok Lim

  2. Attention-based Next Utterance Classification in Dialogue System
    Taesun Whang, Dongyub Lee, Chanhee Lee, Heuiseok Lim
    [HCLT 2018]

  3. Bi-directional LSTM-CNN-CRF for Korean Named Entity Recognition System with Feature Augmentation
    Dongyub Lee, WonHui Yu, Heuiseok Lim
    [Journal of the Korea Convergence Society Volume 8 Issue 12, pp.55-62, 2017.12]

  4. Development of a Dialogue System Model for Korean Restaurant Reservation with End-to-End Learning Method Combining Domain Specific Knowledge
    Dongyub Lee, Gyeongmin Kim, Heuiseok Lim

  5. Development of Korean Dialogue Dataset for Restaurant Reservation System
    Gyeongmin Kim, Dongyub Lee, Heuiseok Lim

  6. A Development of Korean Short Message Response System Based on End-to-end Learning
    Dongyub Lee, Heuiseok Lim

  7. User Sentiment Analysis on Amazon Fashion Product Review Using Word Embedding
    Dongyub Lee, Jaechoon Jo, Heuiseok Lim
    [Journal of the Korea Convergence Society, 제8권, 제4호, pp.1-8, 2017.04]

  8. CNN based feature augmentation for SVM classifier
    Dongyub Lee, Namsang Hyup, SeungHoon Na

Appointments & Awards

Year Award
2021 3rd place in Task1 and 5th place in Task2, Dialogue State Tracking Challenge (DSTC 10) Track2, AAAI 2022
2019 2nd place in the EmotionX (shared task of SocialNLP), IJCAI 2019
2019 Fourth place in the DSTC-7 tack-1 task, AAAI 2019
2018 Bronze Prize in the Korean Language Information Processing Competition (Dependency Parser), HCLT 2018
2018 Kakao Research Scholarship
2017 Gold Prize in Korean Language Information Processing Competition (Named Entity Recoginition), HCLT 2017
2016 Software Maestro 6th (Completion of Phase 1, Advance to Phase 2)