Search Results for author: Xuyang Wu

Found 8 papers, 1 papers with code

Q-PEFT: Query-dependent Parameter Efficient Fine-tuning for Text Reranking with Large Language Models

no code implementations6 Apr 2024 Zhiyuan Peng, Xuyang Wu, Qifan Wang, Sravanthi Rajanala, Yi Fang

Parameter Efficient Fine-Tuning (PEFT) methods have been extensively utilized in Large Language Models (LLMs) to improve the down-streaming tasks without the cost of fine-tuing the whole LLMs.

Text Reranking

Do Large Language Models Rank Fairly? An Empirical Study on the Fairness of LLMs as Rankers

no code implementations4 Apr 2024 YuAn Wang, Xuyang Wu, Hsin-Tai Wu, Zhiqiang Tao, Yi Fang

The integration of Large Language Models (LLMs) in information retrieval has raised a critical reevaluation of fairness in the text-ranking models.

Fairness Information Retrieval +2

Mathematical Foundation and Corrections for Full Range Head Pose Estimation

no code implementations26 Mar 2024 Huei-Chung Hu, Xuyang Wu, YuAn Wang, Yi Fang, Hsin-Tai Wu

This paper presents (1) code and algorithms for inferring coordinate system from provided source code, code for Euler angle application order and extracting precise rotation matrices and the Euler angles, (2) code and algorithms for converting poses from one rotation system to another, (3) novel formulae for 2D augmentations of the rotation matrices, and (4) derivations and code for the correct drawing routines for rotation matrices and poses.

Head Pose Estimation

Asynchronous Distributed Optimization with Delay-free Parameters

no code implementations11 Dec 2023 Xuyang Wu, Changxin Liu, Sindri Magnusson, Mikael Johansson

In contrast to alternatives, our algorithms can converge to the fixed point set of their synchronous counterparts using step-sizes that are independent of the delays.

Distributed Optimization

Soft Prompt Tuning for Augmenting Dense Retrieval with Large Language Models

1 code implementation17 Jul 2023 Zhiyuan Peng, Xuyang Wu, Qifan Wang, Yi Fang

We design a filter to select high-quality example document-query pairs in the prompt to further improve the quality of weak tagged queries.

Retrieval TAG +1

Delay-adaptive step-sizes for asynchronous learning

no code implementations17 Feb 2022 Xuyang Wu, Sindri Magnusson, Hamid Reza Feyzmahdavian, Mikael Johansson

In this paper, we show that it is possible to use learning rates that depend on the actual time-varying delays in the system.

A Multi-task Learning Framework for Product Ranking with BERT

no code implementations10 Feb 2022 Xuyang Wu, Alessandro Magnani, Suthee Chaidaroon, Ajit Puthenputhussery, Ciya Liao, Yi Fang

The proposed model utilizes domain-specific BERT with fine-tuning to bridge the vocabulary gap and employs multi-task learning to optimize multiple objectives simultaneously, which yields a general end-to-end learning framework for product search.

Information Retrieval Multi-Task Learning +1

Distributed Optimization with Coupling Constraints

no code implementations25 Feb 2021 Xuyang Wu, He Wang, Jie Lu

In this paper, we develop a novel distributed algorithm for addressing convex optimization with both nonlinear inequality and linear equality constraints, where the objective function can be a general nonsmooth convex function and all the constraints can be fully coupled.

Distributed Optimization Optimization and Control

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