Research

Publications

• Zhifeng Kong, Kamalika Chaudhuri. Universal Approximation of Residual Flows in Maximum Mean Discrepancy. [pdf]

• Zhifeng Kong, Wei Ping, Jiaji Huang, Kexin Zhao, Bryan Catanzaro. DiffWave: A Versatile Diffusion Model for Audio Synthesis. Accepted by ICLR 2021 (oral). [pdf]

• Zhifeng Kong, Kamalika Chaudhuri. The Expressive Power of a Class of Normalizing Flow Models. In AISTATS 2020. [pdf] [slides] [blog]

• Zhifeng Kong, Kamalika Chaudhuri. The Expressive Power of Planar Flows. In The Workshop on Theory of Deep Learning: Where next? [pdf] [slides] [poster] [video]

• Zhaoyang Lyu, Ching-Yun Ko, Zhifeng Kong, Ngai Wong, Dahua Lin, Luca Daniel. Fastened CROWN: Tightened Neural Network Robustness Certificates. In AAAI 2020. [pdf]

• Zhifeng Kong. Convergence Analysis of Training Two-hidden-layer Partially Over-parameterized ReLU Networks vis Gradient Descent. In ICNIP 2020. [pdf]

• Zhifeng Kong. Convergence Analysis of the Dynamics of a Special Kind of Two-Layered Neural Networks with l1 and l2 Regularization. [pdf]

• Xingyu Wan, Qing Zhao, Jinjun Wang, Shunming Deng, Zhifeng Kong. Multi-Object Tracking Using Online Metric Learning with Long Short-Term Memory. In IEEE ICIP 2018, 788-792. [pdf]

• Lu Pengfei, Fan Ya, Zhou Linhua, Qian Jun, Liu Linna, Zhao Siyan, Zhifeng Kong. Study on Feature Extraction and Classification of Animal Blood Spectra Based on Support Vector Machine. Spectroscopy and Spectral Analysis. [pdf]

Blogs and Notes

• The expressive power of a class of normalizing flow models. [blog]

• Generalization theory for GANs. [slides]

• Notes on generalization properties of GAN metrics. [pdf]

• Invertible ResNets. [slides]

Contact me!

Email: z4kong at eng dot ucsd dot edu

WeChat: kong-zhi-feng

Twitter: @ZhifengKong

LinkedIn: Zhifeng Kong

Instagram: zhifeng.kong.3