Search Results for author: Yujian Liu

Found 9 papers, 6 papers with code

Towards Efficient Information Fusion: Concentric Dual Fusion Attention Based Multiple Instance Learning for Whole Slide Images

no code implementations21 Mar 2024 Yujian Liu, Ruoxuan Wu, Xinjie Shen, Zihuang Lu, Lingyu Liang, Haiyu Zhou, Shipu Xu, Shaoai Cai, Shidang Xu

In the realm of digital pathology, multi-magnification Multiple Instance Learning (multi-mag MIL) has proven effective in leveraging the hierarchical structure of Whole Slide Images (WSIs) to reduce information loss and redundant data.

Multiple Instance Learning whole slide images

Augment before You Try: Knowledge-Enhanced Table Question Answering via Table Expansion

1 code implementation28 Jan 2024 Yujian Liu, Jiabao Ji, Tong Yu, Ryan Rossi, Sungchul Kim, Handong Zhao, Ritwik Sinha, Yang Zhang, Shiyu Chang

Table question answering is a popular task that assesses a model's ability to understand and interact with structured data.

Question Answering

Correcting Diffusion Generation through Resampling

1 code implementation10 Dec 2023 Yujian Liu, Yang Zhang, Tommi Jaakkola, Shiyu Chang

Despite diffusion models' superior capabilities in modeling complex distributions, there are still non-trivial distributional discrepancies between generated and ground-truth images, which has resulted in several notable problems in image generation, including missing object errors in text-to-image generation and low image quality.

Object Text-to-Image Generation

Decomposing Uncertainty for Large Language Models through Input Clarification Ensembling

1 code implementation15 Nov 2023 Bairu Hou, Yujian Liu, Kaizhi Qian, Jacob Andreas, Shiyu Chang, Yang Zhang

Uncertainty decomposition refers to the task of decomposing the total uncertainty of a model into data (aleatoric) uncertainty, resulting from the inherent complexity or ambiguity of the data, and model (epistemic) uncertainty, resulting from the lack of knowledge in the model.

Uncertainty Quantification

All Things Considered: Detecting Partisan Events from News Media with Cross-Article Comparison

no code implementations28 Oct 2023 Yujian Liu, Xinliang Frederick Zhang, Kaijian Zou, Ruihong Huang, Nick Beauchamp, Lu Wang

Public opinion is shaped by the information news media provide, and that information in turn may be shaped by the ideological preferences of media outlets.

Harnessing the Spatial-Temporal Attention of Diffusion Models for High-Fidelity Text-to-Image Synthesis

1 code implementation ICCV 2023 Qiucheng Wu, Yujian Liu, Handong Zhao, Trung Bui, Zhe Lin, Yang Zhang, Shiyu Chang

We then impose spatial attention control by combining the attention over the entire text description and that over the local description of the particular object in the corresponding pixel region of that object.

Denoising Image Generation

Uncovering the Disentanglement Capability in Text-to-Image Diffusion Models

1 code implementation CVPR 2023 Qiucheng Wu, Yujian Liu, Handong Zhao, Ajinkya Kale, Trung Bui, Tong Yu, Zhe Lin, Yang Zhang, Shiyu Chang

Based on this finding, we further propose a simple, light-weight image editing algorithm where the mixing weights of the two text embeddings are optimized for style matching and content preservation.

Denoising Disentanglement

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