Search Results for author: Yongxi Lu

Found 8 papers, 4 papers with code

Implicit Label Augmentation on Partially Annotated Clips via Temporally-Adaptive Features Learning

no code implementations24 May 2019 Yongxi Lu, Ziyao Tang, Tara Javidi

Partially annotated clips contain rich temporal contexts that can complement the sparse key frame annotations in providing supervision for model training.

Semantic Segmentation

Decentralized Bayesian Learning over Graphs

no code implementations24 May 2019 Anusha Lalitha, Xinghan Wang, Osman Kilinc, Yongxi Lu, Tara Javidi, Farinaz Koushanfar

The proposed algorithm can be viewed as a Bayesian and peer-to-peer variant of federated learning in which each agent keeps a "posterior probability distribution" over a global model parameters.

Bayesian Inference Federated Learning

Efficient Video Understanding via Layered Multi Frame-Rate Analysis

no code implementations24 Nov 2018 Ziyao Tang, Yongxi Lu, Tara Javidi

One of the greatest challenges in the design of a real-time perception system for autonomous driving vehicles and drones is the conflicting requirement of safety (high prediction accuracy) and efficiency.

Autonomous Driving Video Understanding

S3Pool: Pooling with Stochastic Spatial Sampling

4 code implementations CVPR 2017 Shuangfei Zhai, Hui Wu, Abhishek Kumar, Yu Cheng, Yongxi Lu, Zhongfei Zhang, Rogerio Feris

We view the pooling operation in CNNs as a two-step procedure: first, a pooling window (e. g., $2\times 2$) slides over the feature map with stride one which leaves the spatial resolution intact, and second, downsampling is performed by selecting one pixel from each non-overlapping pooling window in an often uniform and deterministic (e. g., top-left) manner.

Data Augmentation Image Classification

Adaptive Object Detection Using Adjacency and Zoom Prediction

1 code implementation CVPR 2016 Yongxi Lu, Tara Javidi, Svetlana Lazebnik

Compared to methods based on fixed anchor locations, our approach naturally adapts to cases where object instances are sparse and small.

Object object-detection +1

Efficient Object Detection for High Resolution Images

no code implementations5 Oct 2015 Yongxi Lu, Tara Javidi

Efficient generation of high-quality object proposals is an essential step in state-of-the-art object detection systems based on deep convolutional neural networks (DCNN) features.

Object object-detection +2

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