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We study three general multi-task learning (MTL) approaches on 11 sequence tagging tasks. Our extensive empirical results show that in about 50% of the cases, jointly learning all 11 tasks improves upon either independent or pairwise…

计算与语言 · 计算机科学 2018-08-14 Soravit Changpinyo , Hexiang Hu , Fei Sha

Multi-task learning (MTL) refers to the paradigm of learning multiple related tasks together. In contrast, in single-task learning (STL) each individual task is learned independently. MTL often leads to better trained models because they…

机器学习 · 统计学 2019-07-03 Jian Liang , Ziqi Liu , Jiayu Zhou , Xiaoqian Jiang , Changshui Zhang , Fei Wang

The goal of multi-task learning is to learn diverse tasks within a single unified network. As each task has its own unique objective function, conflicts emerge during training, resulting in negative transfer among them. Earlier research…

机器学习 · 计算机科学 2024-06-06 Wooseong Jeong , Kuk-Jin Yoon

Multi-task learning (MTL) considers learning a joint model for multiple tasks by optimizing a convex combination of all task losses. To solve the optimization problem, existing methods use an adaptive weight updating scheme, where task…

机器学习 · 计算机科学 2024-07-22 Yifei He , Shiji Zhou , Guojun Zhang , Hyokun Yun , Yi Xu , Belinda Zeng , Trishul Chilimbi , Han Zhao

In-context learning (ICL) is a central capability of Transformer models, but the structures in data that enable its emergence and govern its robustness remain poorly understood. In this work, we study how the structure of pretraining tasks…

机器学习 · 统计学 2025-10-01 Mary I. Letey , Jacob A. Zavatone-Veth , Yue M. Lu , Cengiz Pehlevan

Multi-task learning (MTL) has been widely applied in online advertising and recommender systems. To address the negative transfer issue, recent studies have proposed optimization methods that thoroughly focus on the gradient alignment of…

信息检索 · 计算机科学 2023-03-13 Xuanhua Yang , Jianxin Zhao , Shaoguo Liu , Liang Wang , Bo Zheng

The multi-task learning (MTL) paradigm can be traced back to an early paper of Caruana (1997) in which it was argued that data from multiple tasks can be used with the aim to obtain a better performance over learning each task…

机器学习 · 计算机科学 2021-12-10 Andrea Ponti

Scarcity of parallel sentence pairs is a major challenge for training high quality neural machine translation (NMT) models in bilingually low-resource scenarios, as NMT is data-hungry. Multi-task learning is an elegant approach to inject…

计算与语言 · 计算机科学 2020-01-13 Poorya Zaremoodi , Gholamreza Haffari

Multi-task learning can leverage information learned by one task to benefit the training of other tasks. Despite this capacity, naive formulations often degrade performance and in particular, identifying the tasks that would benefit from…

机器学习 · 计算机科学 2021-09-13 Christopher Fifty , Ehsan Amid , Zhe Zhao , Tianhe Yu , Rohan Anil , Chelsea Finn

While the promises of Multi-Task Learning (MTL) are attractive, characterizing the conditions of its success is still an open problem in Deep Learning. Some tasks may benefit from being learned together while others may be detrimental to…

机器学习 · 计算机科学 2023-01-10 Raphael Azorin , Massimo Gallo , Alessandro Finamore , Dario Rossi , Pietro Michiardi

It has been observed in recent years that transformers have problems with length generalization for certain types of reasoning and arithmetic tasks. In particular, the performance of a transformer model trained on tasks (say addition) up to…

机器学习 · 计算机科学 2023-10-03 Pranjal Awasthi , Anupam Gupta

Multi-task learning solves multiple correlated tasks. However, conflicts may exist between them. In such circumstances, a single solution can rarely optimize all the tasks, leading to performance trade-offs. To arrive at a set of optimized…

人工智能 · 计算机科学 2024-03-26 Lu Bai , Abhishek Gupta , Yew-Soon Ong

Multi-task learning aims to learn multiple tasks jointly by exploiting their relatedness to improve the generalization performance for each task. Traditionally, to perform multi-task learning, one needs to centralize data from all the tasks…

机器学习 · 计算机科学 2017-06-21 Sulin Liu , Sinno Jialin Pan , Qirong Ho

Instruction tuning -- fine-tuning a large language model (LLM) on pairs of instructions and desired outcomes -- is an approach that enables pre-trained language models to perform real-world tasks and follow human instructions. Its practical…

计算与语言 · 计算机科学 2024-02-19 Dylan Zhang , Justin Wang , Francois Charton

Multi-task learning aims at solving multiple machine learning tasks at the same time. A good solution to a multi-task learning problem should be generalizable in addition to being Pareto optimal. In this paper, we provide some insights on…

机器学习 · 计算机科学 2020-08-14 Yuyan Wang , Zhe Zhao , Bo Dai , Christopher Fifty , Dong Lin , Lichan Hong , Ed H. Chi

In multi-task learning (MTL), we improve the performance of key machine learning algorithms by training various tasks jointly. When the number of tasks is large, modeling task structure can further refine the task relationship model. For…

机器学习 · 计算机科学 2020-11-25 Xiangyu Niu , Yifan Sun , Jinyuan Sun

Real-world sequential decision-making tasks often require balancing trade-offs between multiple conflicting objectives, making Multi-Objective Reinforcement Learning (MORL) an increasingly prominent field of research. Despite recent…

机器学习 · 计算机科学 2025-03-14 Jayden Teoh , Pradeep Varakantham , Peter Vamplew

Meta-learning has emerged as an effective methodology to model several real-world tasks and problems due to its extraordinary effectiveness in the low-data regime. There are many scenarios ranging from the classification of rare diseases to…

机器学习 · 计算机科学 2023-12-29 Prabhat Agarwal , Shreya Singh

Specialized Multi-Task Optimizers (SMTOs) balance task learning in Multi-Task Learning by addressing issues like conflicting gradients and differing gradient norms, which hinder equal-weighted task training. However, recent critiques…

机器学习 · 计算机科学 2026-03-24 Gabriel S. Gama , Valdir Grassi

This research delves deeply into Meta Reinforcement Learning (Meta RL) through a exploration focusing on defining generalization limits and ensuring convergence. By employing a approach this article introduces an innovative theoretical…

机器学习 · 计算机科学 2024-05-24 Cangqing Wang , Mingxiu Sui , Dan Sun , Zecheng Zhang , Yan Zhou