Search Results for author: Zixuan Liu

Found 17 papers, 8 papers with code

Textomics: A Dataset for Genomics Data Summary Generation

1 code implementation ACL 2022 Mu-Chun Wang, Zixuan Liu, Sheng Wang

We further illustrate how Textomics can be used to advance other applications, including evaluating scientific paper embeddings and generating masked templates for scientific paper understanding.

Enhancing LLM Safety via Constrained Direct Preference Optimization

no code implementations4 Mar 2024 Zixuan Liu, Xiaolin Sun, Zizhan Zheng

Empirically, our approach provides a safety guarantee to LLMs that is missing in DPO while achieving significantly higher rewards under the same safety constraint compared to a recently proposed safe RLHF approach.

reinforcement-learning

T-Rex: Text-assisted Retrosynthesis Prediction

1 code implementation26 Jan 2024 Yifeng Liu, Hanwen Xu, Tangqi Fang, Haocheng Xi, Zixuan Liu, Sheng Zhang, Hoifung Poon, Sheng Wang

As a fundamental task in computational chemistry, retrosynthesis prediction aims to identify a set of reactants to synthesize a target molecule.

Re-Ranking Retrosynthesis

Revisiting Plasticity in Visual Reinforcement Learning: Data, Modules and Training Stages

1 code implementation11 Oct 2023 Guozheng Ma, Lu Li, Sen Zhang, Zixuan Liu, Zhen Wang, Yixin Chen, Li Shen, Xueqian Wang, DaCheng Tao

Plasticity, the ability of a neural network to evolve with new data, is crucial for high-performance and sample-efficient visual reinforcement learning (VRL).

Data Augmentation reinforcement-learning

Enhancing Cross-Dataset Performance of Distracted Driving Detection With Score-Softmax Classifier

1 code implementation8 Oct 2023 Cong Duan, Zixuan Liu, Jiahao Xia, Minghai Zhang, Jiacai Liao, Libo Cao

Deep neural networks enable real-time monitoring of in-vehicle driver, facilitating the timely prediction of distractions, fatigue, and potential hazards.

Transfer Learning

ForeSeer: Product Aspect Forecasting Using Temporal Graph Embedding

no code implementations7 Oct 2023 Zixuan Liu, Gaurush Hiranandani, Kun Qian, Eddie W. Huang, Yi Xu, Belinda Zeng, Karthik Subbian, Sheng Wang

ForeSeer transfers reviews from similar products on a large product graph and exploits these reviews to predict aspects that might emerge in future reviews.

Graph Embedding Link Prediction

MMICL: Empowering Vision-language Model with Multi-Modal In-Context Learning

2 code implementations14 Sep 2023 Haozhe Zhao, Zefan Cai, Shuzheng Si, Xiaojian Ma, Kaikai An, Liang Chen, Zixuan Liu, Sheng Wang, Wenjuan Han, Baobao Chang

In this paper, we address the limitation above by 1) introducing vision-language Model with Multi-Modal In-Context Learning(MMICL), a new approach to allow the VLM to deal with multi-modal inputs efficiently; 2) proposing a novel context scheme to augment the in-context learning ability of the VLM; 3) constructing the Multi-modal In-Context Learning (MIC) dataset, designed to enhance the VLM's ability to understand complex multi-modal prompts.

Hallucination In-Context Learning +2

DFWLayer: Differentiable Frank-Wolfe Optimization Layer

1 code implementation21 Aug 2023 Zixuan Liu, Liu Liu, Xueqian Wang, Peilin Zhao

Differentiable optimization has received a significant amount of attention due to its foundational role in the domain of machine learning based on neural networks.

Over-training with Mixup May Hurt Generalization

no code implementations2 Mar 2023 Zixuan Liu, Ziqiao Wang, Hongyu Guo, Yongyi Mao

Mixup, which creates synthetic training instances by linearly interpolating random sample pairs, is a simple and yet effective regularization technique to boost the performance of deep models trained with SGD.

Gradient-based Bi-level Optimization for Deep Learning: A Survey

no code implementations24 Jul 2022 Can Chen, Xi Chen, Chen Ma, Zixuan Liu, Xue Liu

In this survey, we first give a formal definition of the gradient-based bi-level optimization.

Hyperparameter Optimization

Brain-Aware Replacements for Supervised Contrastive Learning in Detection of Alzheimer's Disease

1 code implementation11 Jul 2022 Mehmet Saygın Seyfioğlu, Zixuan Liu, Pranav Kamath, Sadjyot Gangolli, Sheng Wang, Thomas Grabowski, Linda Shapiro

On top of BAR, we propose using a soft-label-capable supervised contrastive loss, aiming to learn the relative similarity of representations that reflect how mixed are the synthetic MRIs using our soft labels.

Contrastive Learning Data Augmentation

Going Beyond Saliency Maps: Training Deep Models to Interpret Deep Models

no code implementations16 Feb 2021 Zixuan Liu, Ehsan Adeli, Kilian M. Pohl, Qingyu Zhao

Interpretability is a critical factor in applying complex deep learning models to advance the understanding of brain disorders in neuroimaging studies.

Image-to-Image Translation

Quantum operations with indefinite time direction

no code implementations7 Dec 2020 Giulio Chiribella, Zixuan Liu

A fundamental question is whether it is possible to conceive a broader set of operations that probe quantum processes in the backward direction, from the future to the past, or more generally, in a combination of the forward and backward directions.

Quantum Physics Mathematical Physics Mathematical Physics

Longitudinal Self-Supervised Learning

no code implementations12 Jun 2020 Qingyu Zhao, Zixuan Liu, Ehsan Adeli, Kilian M. Pohl

Machine learning analysis of longitudinal neuroimaging data is typically based on supervised learning, which requires a large number of ground-truth labels to be informative.

Disentanglement Self-Supervised Learning

DAWSON: A Domain Adaptive Few Shot Generation Framework

no code implementations2 Jan 2020 Weixin Liang, Zixuan Liu, Can Liu

Based on DAWSON, We also propose MUSIC MATINEE, which is the first few-shot music generation model.

Meta-Learning Music Generation

Cannot find the paper you are looking for? You can Submit a new open access paper.