Update README.md

README.md

@@ -49,3 +49,13 @@ NVIDIA believes Trustworthy AI is a shared responsibility and we have establishe
 
 Please report security vulnerabilities or NVIDIA AI Concerns [here](https://www.nvidia.com/en-us/support/submit-security-vulnerability/). 
 
+## Citation
+
+```
+@article{zheng2025direct,
+  title={Direct Discriminative Optimization: Your Likelihood-Based Visual Generative Model is Secretly a GAN Discriminator},
+  author={Zheng, Kaiwen and Chen, Yongxin and Chen, Huayu and He, Guande and Liu, Ming-Yu and Zhu, Jun and Zhang, Qinsheng},
+  journal={arXiv preprint arXiv:2503.01103},
+  year={2025}
+}
+```