Jinju (Pearl) Kim

Authors

Jinju Kim, Haeji Jung, Youjeong Roh, Jong Hwan Ko, and David R. Mortensen

Abstract

to be updated

Keywords

to be updated

Authors

Haeji Jung,Jinju Kim, Kyungjin Kim, Youjeong Roh, and David R. Mortensen

Abstract

to be updated

Keywords

to be updated

Authors

Jinju Kim*, Taesoo Kim*, Dong Chan Kim, Jong Hwan Ko, and Gyeong-Moon Park

Abstract

The rapid advancement of Zero-Shot Text-to-Speech (ZS-TTS) technology has enabled high-fidelity voice synthesis from minimal audio cues, raising significant privacy and ethical concerns. Despite the threats to voice privacy, research to selectively remove the knowledge to replicate unwanted individual voices from pre-trained model parameters has not been explored. In this paper, we address the new challenge of speaker identity unlearning for ZS-TTS systems. To meet this goal, we propose the first machine unlearning frameworks for ZS-TTS, especially Teacher-Guided Unlearning (TGU), designed to ensure the model forgets designated speaker identities while retaining its ability to generate accurate speech for other speakers. Our proposed methods incorporate randomness to prevent consistent replication of forget speakers' voices, assuring unlearned identities remain untraceable. Additionally, we propose a new evaluation metric, speaker-Zero Retrain Forgetting (spk-ZRF). This assesses the model's ability to disregard prompts associated with forgotten speakers, effectively neutralizing its knowledge of these voices. The experiments conducted on the state-of-the-art model demonstrate that TGU prevents the model from replicating forget speakers' voices while maintaining high quality for other speakers.The demo is available at https://speechunlearn.github.io/ .

Keywords

Machine Unlearning, Generative Unlearning, Voice Privacy, Zero-Shot Text-to-Speech

Links

paper(ICML Main) | paper(ICML X MuGen) | conference | poster | github

Authors

Kyungjin Kim, Jinju Kim, Haeji Jung, David R Mortensen, Jongmo Seo

Abstract

Medical natural language processing (NLP) has greatly benefited from the increasing availability of electronic health records (EHRs) across multiple languages. However, most available resources are heavily biased toward English, restricting the development of non-English medical NLP models and limiting their broader adoption in healthcare AI. In general domain NLP, monolingual models trained on high-resource European languages often outperform multilingual models. However, this paper takes a domain-specific perspective, highlighting the unique linguistic characteristics of medical terminology. Using a diverse corpus of medical texts in English, Italian, Spanish, and French, we pretrain RoBERTa-based models in both monolingual and multilingual settings. Contrary to conventional NLP trends, our results suggest that multilingual training enhances cross-lingual knowledge transfer and can even outperform monolingual models in medical domains. Through a comparative analysis of orthographic and phonemic representations, we find evidence suggesting that the strong Latin roots of medical terminology may facilitate effective knowledge sharing among languages with similar scripts. These findings indicate that orthographically focused multilingual strategies could provide a more robust framework for modeling specialized medical terminology. In particular, multilingual training that capitalizes on script similarities appears to enable richer information utilization, which may contribute to improved medical NLP performance across languages.

Keywords

Phonemic Representations, NLP, Multilingual Models, Medical AI

Links

Paper