Search Results for author: Jinfeng Xu

Found 8 papers, 5 papers with code

PDF: A Probability-Driven Framework for Open World 3D Point Cloud Semantic Segmentation

1 code implementation1 Apr 2024 Jinfeng Xu, Siyuan Yang, Xianzhi Li, Yuan Tang, Yixue Hao, Long Hu, Min Chen

Existing point cloud semantic segmentation networks cannot identify unknown classes and update their knowledge, due to a closed-set and static perspective of the real world, which would induce the intelligent agent to make bad decisions.

Knowledge Distillation Segmentation +1

MENTOR: Multi-level Self-supervised Learning for Multimodal Recommendation

1 code implementation29 Feb 2024 Jinfeng Xu, Zheyu Chen, Shuo Yang, Jinze Li, Hewei Wang, Edith C. -H. Ngai

It utilizes multimodal information to alleviate the data sparsity problem in recommendation systems, thus improving recommendation accuracy.

Multimodal Recommendation Self-Supervised Learning

Point-LGMask: Local and Global Contexts Embedding for Point Cloud Pre-training with Multi-Ratio Masking

1 code implementation IEEE Transactions on Multimedia 2023 Yuan Tang, Xianzhi Li, Jinfeng Xu, Qiao Yu, Long Hu, Yixue Hao, Min Chen

In our work, we present Point-LGMask, a novel method to embed both local and global contexts with multi-ratio masking, which is quite effective for self-supervised feature learning of point clouds but is unfortunately ignored by existing pre-training works.

3D Object Detection 3D Semantic Segmentation +3

CasFusionNet: A Cascaded Network for Point Cloud Semantic Scene Completion by Dense Feature Fusion

1 code implementation24 Nov 2022 Jinfeng Xu, Xianzhi Li, Yuan Tang, Qiao Yu, Yixue Hao, Long Hu, Min Chen

In our work, we present CasFusionNet, a novel cascaded network for point cloud semantic scene completion by dense feature fusion.

Segmentation Semantic Segmentation

Improving Feature Extraction from Histopathological Images Through A Fine-tuning ImageNet Model

no code implementations3 Jan 2022 Xingyu Li, Min Cen, Jinfeng Xu, Hong Zhang, Xu Steven Xu

The extracted features from the finetuned FTX2048 exhibited significantly higher accuracy for predicting tisue types of CRC compared to the off the shelf feature directly from Xception based on ImageNet database.

Transfer Learning

On Scalable Inference with Stochastic Gradient Descent

no code implementations1 Jul 2017 Yixin Fang, Jinfeng Xu, Lei Yang

In many applications involving large dataset or online updating, stochastic gradient descent (SGD) provides a scalable way to compute parameter estimates and has gained increasing popularity due to its numerical convenience and memory efficiency.

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