| 2004 | CICLING | Overcoming the Sparseness Problem of Spoken Language Corpora Using Other Large Corpora of Distinct Characteristics. | Sehyeong Cho, Sanghun Kim, Jun Park, Youngjik Lee |
| 2004 | Interspeech | Usability considerations of speech-to-speech translation system. | Youngjik Lee, Jun Park, Seung-Shin Oh |
| 2001 | Interspeech | Pruning of redundant synthesis instances based on weighted vector quantization. | Sanghun Kim, Youngjik Lee, Keikichi Hirose |
| 1998 | ICASSP | An implementation of a partial parser in the spoken language translator. | Nam-Yong Han, Un-Cheon Choi, Youngjik Lee |
| 1996 | Interspeech | Intonation processing for TTS using stylization and neural network learning method. | Jung-Chul Lee, Youngjik Lee, Sanghun Kim, Minsoo Hahn |
| 1996 | Interspeech | Phoneme segmentation of continuous speech using multi-layer perceptron. | Youngjoo Suh, Youngjik Lee |
| 1996 | Interspeech | Toward translating Korean speech into other languages. | Jae-Woo Yang, Youngjik Lee |
| 1995 | ICASSP | Implementation of the POW (phonetically optimized words) algorithm for speech database. | Yeonja Lim, Youngjik Lee |
| 1995 | Interspeech | Korean-Japanese speech translation system for hotel reservation - Korean front desk side. | Youngjik Lee, Young-Sum Kim, Jung-Chul Lee, Joon-Hyung Ryoo, Jae-Woo Yang |
| 1990 | IJCNN | Analysis of classification performance for Hopfield network with predefined correlated exemplar patterns. | Youngjik Lee, Myung Won Kim, Hyun Kyung Song, Sin Chang Park |
| 1988 | ICASSP | An algorithm for optimal placement of sensor elements. | Youngjik Lee, S. Unnikrishna Pillai |