Search Results for author: Mengyu Li

Found 9 papers, 2 papers with code

Magnetic Resonance Image Processing Transformer for General Reconstruction

no code implementations23 May 2024 Guoyao Shen, Mengyu Li, Stephan Anderson, Chad W. Farris, Xin Zhang

Result: The MR-IPT model provided superior performance in multiple downstream tasks compared to conventional CNN networks.

Anatomy Few-Shot Learning +4

Resolving Word Vagueness with Scenario-guided Adapter for Natural Language Inference

no code implementations21 May 2024 Yonghao Liu, Mengyu Li, Di Liang, Ximing Li, Fausto Giunchiglia, Lan Huang, Xiaoyue Feng, Renchu Guan

By incorporating relevant visual information and leveraging linguistic knowledge, our approach bridges the gap between language and vision, leading to improved understanding and inference capabilities in NLI tasks.

Natural Language Inference Sentence +1

Simple-Sampling and Hard-Mixup with Prototypes to Rebalance Contrastive Learning for Text Classification

no code implementations19 May 2024 Mengyu Li, Yonghao Liu, Fausto Giunchiglia, Xiaoyue Feng, Renchu Guan

Compared with the previous learning paradigm of pre-training and fine-tuning by cross entropy loss, the recently proposed supervised contrastive learning approach has received tremendous attention due to its powerful feature learning capability and robustness.

Contrastive Learning text-classification +1

K-space Cold Diffusion: Learning to Reconstruct Accelerated MRI without Noise

no code implementations16 Nov 2023 Guoyao Shen, Mengyu Li, Chad W. Farris, Stephan Anderson, Xin Zhang

In this paper, we propose a k-space cold diffusion model that performs image degradation and restoration in k-space without the need for Gaussian noise.

Image Generation MRI Reconstruction +1

Attention Hybrid Variational Net for Accelerated MRI Reconstruction

no code implementations21 Jun 2023 Guoyao Shen, Boran Hao, Mengyu Li, Chad W. Farris, Ioannis Ch. Paschalidis, Stephan W. Anderson, Xin Zhang

However, the drawback of these structures is that they are not fully utilizing the information from both domains (k-space and image).

MRI Reconstruction

Importance Sparsification for Sinkhorn Algorithm

1 code implementation11 Jun 2023 Mengyu Li, Jun Yu, Tao Li, Cheng Meng

Sinkhorn algorithm has been used pervasively to approximate the solution to optimal transport (OT) and unbalanced optimal transport (UOT) problems.

Efficient Approximation of Gromov-Wasserstein Distance Using Importance Sparsification

1 code implementation26 May 2022 Mengyu Li, Jun Yu, Hongteng Xu, Cheng Meng

As a valid metric of metric-measure spaces, Gromov-Wasserstein (GW) distance has shown the potential for matching problems of structured data like point clouds and graphs.

valid

Single Image based Head Pose Estimation with Spherical Parameterization and 3D Morphing

no code implementations22 Jul 2019 Hui Yuan, Mengyu Li, Junhui Hou, Jimin Xiao

Specifically, the rectangular coordinates of only four non-coplanar feature points from a predefined 3D facial model as well as the corresponding ones automatically/ manually extracted from a 2D face image are first normalized to exclude the effect of external factors (i. e., scale factor and translation parameters).

Head Pose Estimation

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