Search Results for author: Keyang Xu

Found 7 papers, 2 papers with code

Direct Preference Optimization of Video Large Multimodal Models from Language Model Reward

1 code implementation1 Apr 2024 Ruohong Zhang, Liangke Gui, Zhiqing Sun, Yihao Feng, Keyang Xu, Yuanhan Zhang, Di Fu, Chunyuan Li, Alexander Hauptmann, Yonatan Bisk, Yiming Yang

Preference modeling techniques, such as direct preference optimization (DPO), has shown effective in enhancing the generalization abilities of large language model (LLM).

Instruction Following Language Modelling +3

Inflation with Diffusion: Efficient Temporal Adaptation for Text-to-Video Super-Resolution

no code implementations18 Jan 2024 Xin Yuan, Jinoo Baek, Keyang Xu, Omer Tov, Hongliang Fei

We propose an efficient diffusion-based text-to-video super-resolution (SR) tuning approach that leverages the readily learned capacity of pixel level image diffusion model to capture spatial information for video generation.

Video Generation Video Super-Resolution

Unsupervised Out-of-Domain Detection via Pre-trained Transformers

1 code implementation ACL 2021 Keyang Xu, Tongzheng Ren, Shikun Zhang, Yihao Feng, Caiming Xiong

Deployed real-world machine learning applications are often subject to uncontrolled and even potentially malicious inputs.

Unsupervised Pseudo-Labeling for Extractive Summarization on Electronic Health Records

no code implementations20 Nov 2018 Xiangan Liu, Keyang Xu, Pengtao Xie, Eric Xing

Extractive summarization is very useful for physicians to better manage and digest Electronic Health Records (EHRs).

Extractive Summarization

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