Search Results for author: Lifeng Sun

Found 8 papers, 5 papers with code

A General Method For Automatic Discovery of Powerful Interactions In Click-Through Rate Prediction

no code implementations21 May 2021 Ze Meng, Jinnian Zhang, Yumeng Li, Jiancheng Li, Tanchao Zhu, Lifeng Sun

Modeling powerful interactions is a critical challenge in Click-through rate (CTR) prediction, which is one of the most typical machine learning tasks in personalized advertising and recommender systems.

Click-Through Rate Prediction Neural Architecture Search +1

Continual Local Training for Better Initialization of Federated Models

2 code implementations26 May 2020 Xin Yao, Lifeng Sun

Federated learning (FL) refers to the learning paradigm that trains machine learning models directly in the decentralized systems consisting of smart edge devices without transmitting the raw data, which avoids the heavy communication costs and privacy concerns.

Federated Learning

Adversarial Feature Alignment: Avoid Catastrophic Forgetting in Incremental Task Lifelong Learning

no code implementations24 Oct 2019 Xin Yao, Tianchi Huang, Chenglei Wu, Rui-Xiao Zhang, Lifeng Sun

Extensive experiments in several typical lifelong learning scenarios demonstrate that our method outperforms the state-of-the-art methods in both accuracies on new tasks and performance preservation on old tasks.

Continual Learning Image Classification +1

Federated Learning with Unbiased Gradient Aggregation and Controllable Meta Updating

no code implementations18 Oct 2019 Xin Yao, Tianchi Huang, Rui-Xiao Zhang, Ruiyu Li, Lifeng Sun

Federated learning (FL) aims to train machine learning models in the decentralized system consisting of an enormous amount of smart edge devices.

Federated Learning

Federated Learning with Additional Mechanisms on Clients to Reduce Communication Costs

2 code implementations16 Aug 2019 Xin Yao, Tianchi Huang, Chenglei Wu, Rui-Xiao Zhang, Lifeng Sun

Federated learning (FL) enables on-device training over distributed networks consisting of a massive amount of modern smart devices, such as smartphones and IoT (Internet of Things) devices.

Federated Learning

Comyco: Quality-Aware Adaptive Video Streaming via Imitation Learning

1 code implementation6 Aug 2019 Tianchi Huang, Chao Zhou, Rui-Xiao Zhang, Chenglei Wu, Xin Yao, Lifeng Sun

Using trace-driven and real-world experiments, we demonstrate significant improvements of Comyco's sample efficiency in comparison to prior work, with 1700x improvements in terms of the number of samples required and 16x improvements on training time required.

Imitation Learning

Cross-Scale Cost Aggregation for Stereo Matching

1 code implementation CVPR 2014 Kang Zhang, Yuqiang Fang, Dongbo Min, Lifeng Sun, Shiqiang Yang. Shuicheng Yan, Qi Tian

We firstly reformulate cost aggregation from a unified optimization perspective and show that different cost aggregation methods essentially differ in the choices of similarity kernels.

Stereo Matching Stereo Matching Hand

Binary Stereo Matching

1 code implementation10 Feb 2014 Kang Zhang, Jiyang Li, Yijing Li, Weidong Hu, Lifeng Sun, Shiqiang Yang

In this paper, we propose a novel binary-based cost computation and aggregation approach for stereo matching problem.

Computational Efficiency Stereo Matching +1

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