Search Results for author: Zhenan Fan

Found 10 papers, 4 papers with code

SQL-Encoder: Improving NL2SQL In-Context Learning Through a Context-Aware Encoder

no code implementations24 Mar 2024 Mohammadreza Pourreza, Davood Rafiei, Yuxi Feng, Raymond Li, Zhenan Fan, Weiwei Zhang

Furthermore, compared to these competitive models, our proposed encoder enhances the downstream performance of NL2SQL models in 1-shot in-context learning scenarios by 1-2\% for GPT-3. 5-turbo, 4-8\% for CodeLlama-7B, and 2-3\% for CodeLlama-13B.

In-Context Learning

Machine Learning Insides OptVerse AI Solver: Design Principles and Applications

no code implementations11 Jan 2024 Xijun Li, Fangzhou Zhu, Hui-Ling Zhen, Weilin Luo, Meng Lu, Yimin Huang, Zhenan Fan, Zirui Zhou, Yufei Kuang, Zhihai Wang, Zijie Geng, Yang Li, Haoyang Liu, Zhiwu An, Muming Yang, Jianshu Li, Jie Wang, Junchi Yan, Defeng Sun, Tao Zhong, Yong Zhang, Jia Zeng, Mingxuan Yuan, Jianye Hao, Jun Yao, Kun Mao

To this end, we present a comprehensive study on the integration of machine learning (ML) techniques into Huawei Cloud's OptVerse AI Solver, which aims to mitigate the scarcity of real-world mathematical programming instances, and to surpass the capabilities of traditional optimization techniques.

Decision Making Management

Artificial Intelligence for Operations Research: Revolutionizing the Operations Research Process

no code implementations6 Jan 2024 Zhenan Fan, Bissan Ghaddar, Xinglu Wang, Linzi Xing, Yong Zhang, Zirui Zhou

The rapid advancement of artificial intelligence (AI) techniques has opened up new opportunities to revolutionize various fields, including operations research (OR).

Decision Making Model Optimization

Knowledge-Injected Federated Learning

1 code implementation16 Aug 2022 Zhenan Fan, Zirui Zhou, Jian Pei, Michael P. Friedlander, Jiajie Hu, Chengliang Li, Yong Zhang

Federated learning is an emerging technique for training models from decentralized data sets.

Federated Learning

A dual approach for federated learning

1 code implementation26 Jan 2022 Zhenan Fan, Huang Fang, Michael P. Friedlander

We study the federated optimization problem from a dual perspective and propose a new algorithm termed federated dual coordinate descent (FedDCD), which is based on a type of coordinate descent method developed by Necora et al.[Journal of Optimization Theory and Applications, 2017].

Federated Learning

Fair and efficient contribution valuation for vertical federated learning

no code implementations7 Jan 2022 Zhenan Fan, Huang Fang, Zirui Zhou, Jian Pei, Michael P. Friedlander, Yong Zhang

We show that VerFedSV not only satisfies many desirable properties for fairness but is also efficient to compute, and can be adapted to both synchronous and asynchronous vertical federated learning algorithms.

Fairness Vertical Federated Learning

Achieving Model Fairness in Vertical Federated Learning

1 code implementation17 Sep 2021 Changxin Liu, Zhenan Fan, Zirui Zhou, Yang Shi, Jian Pei, Lingyang Chu, Yong Zhang

To solve it in a federated and privacy-preserving manner, we consider the equivalent dual form of the problem and develop an asynchronous gradient coordinate-descent ascent algorithm, where some active data parties perform multiple parallelized local updates per communication round to effectively reduce the number of communication rounds.

BIG-bench Machine Learning Fairness +2

Fast convergence of stochastic subgradient method under interpolation

no code implementations ICLR 2021 Huang Fang, Zhenan Fan, Michael Friedlander

We prove that SSGD converges, respectively, with rates $O(1/\epsilon)$ and $O(\log(1/\epsilon))$ for convex and strongly-convex objectives when interpolation holds.

Polar Deconvolution of Mixed Signals

1 code implementation14 Oct 2020 Zhenan Fan, Halyun Jeong, Babhru Joshi, Michael P. Friedlander

The signal demixing problem seeks to separate a superposition of multiple signals into its constituent components.

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