Bac
Nguyen

Profile

Bac is a research scientist at Sony AI who focuses his research on representation learning, vision-language models, and generative modeling. His work spans various application domains, such as text-to-speech and voice conversion, and he has made numerous important contributions to the field. Bac graduated summa cum laude with his Master of Science in Computer Science from Universidad Central de Las Villas in 2015, followed by a Ph.D. from Ghent University in 2019.

Message

My current research is focused on leveraging the power of deep neural networks and state-of-the-art algorithms to tackle the challenges of generative AI.

Publications

SONA: Learning Conditional, Unconditional, and Matching-Aware Discriminator

ICLR, 2026
Yuhta Takida, Satoshi Hayakawa, Takashi Shibuya, Masaaki Imaizumi*, Naoki Murata, Bac Nguyen, Toshimitsu Uesaka, Chieh-Hsin Lai, Yuki Mitsufuji

Deep generative models have made significant advances in generating complex content, yet conditional generation remains a fundamental challenge. Existing conditional generative adversarial networks often struggle to balance the dual objectives of assessing authenticity and c…

Improved Object-Centric Diffusion Learning with Registers and Contrastive Alignment

ICLR, 2026
Bac Nguyen, Yuhta Takida, Naoki Murata, Chieh-Hsin Lai, Toshimitsu Uesaka, Stefano Ermon*, Yuki Mitsufuji

Slot Attention (SA) with pretrained diffusion models has recently shown promise for object-centric learning (OCL), but suffers from slot entanglement and weak alignment between object slots and image content. We propose Contrastive Object-centric Diffusion Alignment (CODA), …

G2D2: Gradient-Guided Discrete Diffusion for Image Inverse Problem Solving

TMLR, 2025
Naoki Murata, Chieh-Hsin Lai, Yuhta Takida, Toshimitsu Uesaka, Bac Nguyen, Stefano Ermon*, Yuki Mitsufuji

Recent literature has effectively leveraged diffusion models trained on continuous variables as priors for solving inverse problems. Notably, discrete diffusion models with discrete latent codes have shown strong performance, particularly in modalities suited for discrete co…

JOIN US

Shape the Future of AI with Sony AI

We want to hear from those of you who have a strong desire
to shape the future of AI.