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Li Ren

5 accepted papers

2025

DA-VPT: Semantic-Guided Visual Prompt Tuning for Vision Transformers

CVPR 2025poster

Visual Prompt Tuning (VPT) has become a promising solution for Parameter-Efficient Fine-Tuning (PEFT) approach for Vision Transformer (ViT) models by partially fine-tuning learnable tokens while keeping most model parameters frozen. Recent research has explored modifying the connection structures of…

2024

Learning Semantic Proxies from Visual Prompts for Parameter-Efficient Fine-Tuning in Deep Metric Learning

ICLR 2024poster

Deep Metric Learning (DML) has long attracted the attention of the machine learning community as a key objective. Existing solutions concentrate on fine-tuning the pre-trained models on conventional image datasets. As a result of the success of recent pre-trained models derived from larger-scale dat…

2024

Towards Improved Proxy-Based Deep Metric Learning via Data-Augmented Domain Adaptation

AAAI 2024technical

Deep Metric Learning (DML) plays an important role in modern computer vision research, where we learn a distance metric for a set of image representations. Recent DML techniques utilize the proxy to interact with the corresponding image samples in the embedding space. However, existing proxy-based D…

2016

Neural network shape: Organ shape representation with radial basis function neural networks

ICASSP 2016accepted

We propose to represent the shape of an organ using a neural network classifier. The shape is represented by a function learned by a neural network. Radial Basis Function (RBF) is used as the activation function for each perceptron. The learned implicit function is a combination of radial basis func…

Cited by 0SourceScholar
2015

Localize Me Anywhere, Anytime: A Multi-Task Point-Retrieval Approach

ICCV 2015poster

Image-based localization is an essential complement to GPS localization. Current image-based localization methods are based on either 2D-to-3D or 3D-to-2D to find the correspondences, which ignore the real scene geometric attributes. The main contribution of our paper is that we use a 3D model recon…

Cited by 39PDFScholar