Search Results for author: Xinyi Hu

Found 14 papers, 4 papers with code

Meet Me at the Arm: The Cooperative Multi-Armed Bandits Problem with Shareable Arms

no code implementations11 Jun 2025 Xinyi Hu, Aldo Pacchiano

We study the decentralized multi-player multi-armed bandits (MMAB) problem under a no-sensing setting, where each player receives only their own reward and obtains no information about collisions.

Capacity Estimation Multi-Armed Bandits

Delayed Random Partial Gradient Averaging for Federated Learning

no code implementations28 Dec 2024 Xinyi Hu

Federated learning (FL) is a distributed machine learning paradigm that enables multiple clients to train a shared model collaboratively while preserving privacy.

Federated Learning

Improving Autoregressive Training with Dynamic Oracles

no code implementations13 Jun 2024 Jianing Yang, Harshine Visvanathan, Yilin Wang, Xinyi Hu, Matthew Gormley

Many tasks within NLP can be framed as sequential decision problems, ranging from sequence tagging to text generation.

Machine Translation named-entity-recognition +4

Two-Stage Predict+Optimize for Mixed Integer Linear Programs with Unknown Parameters in Constraints

1 code implementation14 Nov 2023 Xinyi Hu, Jasper C. H. Lee, Jimmy H. M. Lee

We also give a training algorithm usable for all mixed integer linear programs, vastly generalizing the applicability of the framework.

Learning Mutually Informed Representations for Characters and Subwords

1 code implementation14 Nov 2023 Yilin Wang, Xinyi Hu, Matthew R. Gormley

In this paper, we introduce the entanglement model, aiming to combine character and subword language models.

named-entity-recognition Named Entity Recognition +4

Branch & Learn with Post-hoc Correction for Predict+Optimize with Unknown Parameters in Constraints

no code implementations12 Mar 2023 Xinyi Hu, Jasper C. H. Lee, Jimmy H. M. Lee

Combining machine learning and constrained optimization, Predict+Optimize tackles optimization problems containing parameters that are unknown at the time of solving.

Predict+Optimize for Packing and Covering LPs with Unknown Parameters in Constraints

no code implementations8 Sep 2022 Xinyi Hu, Jasper C. H. Lee, Jimmy H. M. Lee

First, we propose a novel and practically relevant framework for the Predict+Optimize setting, but with unknown parameters in both the objective and the constraints.

Branch & Learn for Recursively and Iteratively Solvable Problems in Predict+Optimize

no code implementations1 May 2022 Xinyi Hu, Jasper C. H. Lee, Jimmy H. M. Lee, Allen Z. Zhong

This paper proposes Branch & Learn, a framework for Predict+Optimize to tackle optimization problems containing parameters that are unknown at the time of solving.

"Drunk Man" Saves Our Lives: Route Planning by a Biased Random Walk Mode

no code implementations4 Oct 2020 Xinyi Hu, Quchen Miao, Zexuan Zhao

Based on the hurricane striking Puerto Rico in 2017, we developed a transportable disaster response system "DroneGo" featuring a drone fleet capable of delivering the medical package and videoing roads.

Disaster Response

Compressing Facial Makeup Transfer Networks by Collaborative Distillation and Kernel Decomposition

1 code implementation16 Sep 2020 Bianjiang Yang, Zi Hui, Haoji Hu, Xinyi Hu, Lu Yu

Although the facial makeup transfer network has achieved high-quality performance in generating perceptually pleasing makeup images, its capability is still restricted by the massive computation and storage of the network architecture.

Decoder Facial Makeup Transfer

A Mixture Model Based Defense for Data Poisoning Attacks Against Naive Bayes Spam Filters

no code implementations31 Oct 2018 David J. Miller, Xinyi Hu, Zhen Xiang, George Kesidis

Such attacks are successful mainly because of the poor representation power of the naive Bayes (NB) model, with only a single (component) density to represent spam (plus a possible attack).

Data Poisoning

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