Chris (Yuhao) Liu

yliu298 [at] ucsc [dot] edu

I am an MSc student in Computer Science and Engineering at the University of California, Santa Cruz. I also work as a researcher at Professor Jeffrey Flanigan’s JLab.

My research interests broadly lie in memorization in deep neural networks, compositional generalization, efficient learning with limited data, and computational neuroscience.

My current research focuses on the scaling law between the amount of training data and the generalization performance of deep neural networks (aka the sample complexity rate).

Previously, I earned my B.S. in Computer Science and Engineering at UC Santa Cruz.

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  • [2021-09] I will serve as a teaching assistant for CSE 20 Beginning Programming in Python in Fall 2021 at UCSC.
  • [2021-06] I will (re)join UCSC as a MSc student.
  • [2020-09] I am thrilled to tutor the course CSE142 Machine Learning in Fall 2020 at UCSC.
  • [2020-06] I joined Professor Jeffrey Flanigan's JLab.

These included publications and preprints.

Faster Sample Complexity Rates With Ensemble Filtering
Chris Yuhao Liu, Jeffrey Flanigan
In submission

We present a dataset filtering approach that uses sets of classifiers, similar to ensembling, to estimate noisy (or non-realizable) examples and exclude them so a faster sample complexity rate is achievable in practice.

Sample Complexity Scaling Laws For Adversarial Training
Chris Yuhao Liu

We show that adversarially training (Fast Gradient Sign Method and Projected Gradient Descent) reduces the empirically sample complexity rate for MLP and a variety of CNN architectures on MNIST and CIFAR-10.

Other Projects

These include coursework and side projects.

TAPT: Text Augmentation Using Pre-Trained Transformers With Reinforcement Learning
UC Santa Cruz

A distilled RoBERTa model as a text classifier and a GPT-2 (345M) as a text generator trained using the proximal policy optimization (PPO) framework

Conditional Generation of Research Paper Abstracts with GPT-2
UC Santa Cruz

A GPT-2 (774M) trained using all research paper titles and abstracts under cs.AI, cs.LG, cs.CL, and cs.CV on arXiv

This project was the winner of the Image/Text Generation Competition for the course CSE142 Machine Learning in Spring 2020.

Sentiment Analysis With Transformers
UC Santa Cruz

A RoBERTa (355M) model using the IMDb dataset

This project was the winner of the Sentiment Analysis Competition for the course CSE142 Machine Learning in Spring 2020.


This is a fork of Jon Barron's website.