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The goal of multi-task learning is to enable more efficient learning than single task learning by sharing model structures for a diverse set of tasks. A standard multi-task learning objective is to minimize the average loss across all…

机器学习 · 计算机科学 2024-02-22 Bo Liu , Xingchao Liu , Xiaojie Jin , Peter Stone , Qiang Liu

In multitask learning, conflicts between task gradients are a frequent issue degrading a model's training performance. This is commonly addressed by using the Gradient Projection algorithm PCGrad that often leads to faster convergence and…

机器学习 · 计算机科学 2025-08-07 Christian Bohn , Ido Freeman , Hasan Tercan , Tobias Meisen

In many personalized recommendation scenarios, the generalization ability of a target task can be improved via learning with additional auxiliary tasks alongside this target task on a multi-task network. However, this method often suffers…

机器学习 · 计算机科学 2022-03-15 Yun He , Xue Feng , Cheng Cheng , Geng Ji , Yunsong Guo , James Caverlee

Recommender systems need to mirror the complexity of the environment they are applied in. The more we know about what might benefit the user, the more objectives the recommender system has. In addition there may be multiple stakeholders -…

信息检索 · 计算机科学 2020-04-20 Nikola Milojkovic , Diego Antognini , Giancarlo Bergamin , Boi Faltings , Claudiu Musat

Multitask learning is a methodology to boost generalization performance and also reduce computational intensity and memory usage. However, learning multiple tasks simultaneously can be more difficult than learning a single task because it…

机器学习 · 计算机科学 2020-06-03 Sungjae Lee , Youngdoo Son

Balancing competing objectives remains a fundamental challenge in multi-task learning (MTL), primarily due to conflicting gradients across individual tasks. A common solution relies on computing a dynamic gradient update vector that…

In multi-task learning (MTL), gradient conflict poses a significant challenge. Effective methods for addressing this problem, including PCGrad, CAGrad, and GradNorm, in their original implementations are computationally demanding, which…

机器学习 · 计算机科学 2026-04-03 Evgeny Alves Limarenko , Anastasiia Studenikina , Svetlana Illarionova , Maxim Sharaev

Although multi-task learning (MTL) has been a preferred approach and successfully applied in many real-world scenarios, MTL models are not guaranteed to outperform single-task models on all tasks mainly due to the negative effects of…

机器学习 · 计算机科学 2025-03-06 Shijie Zhu , Hui Zhao , Tianshu Wu , Pengjie Wang , Hongbo Deng , Jian Xu , Bo Zheng

Multi-task learning (MTL) has emerged as a successful strategy in industrial-scale recommender systems, offering significant advantages such as capturing diverse users' interests and accurately detecting different behaviors like ``click" or…

机器学习 · 计算机科学 2025-10-14 Yuguang Liu , Yiyun Miao , Luyao Xia

Deep multitask networks, in which one neural network produces multiple predictive outputs, can offer better speed and performance than their single-task counterparts but are challenging to train properly. We present a gradient normalization…

计算机视觉与模式识别 · 计算机科学 2018-07-16 Zhao Chen , Vijay Badrinarayanan , Chen-Yu Lee , Andrew Rabinovich

While deep learning and deep reinforcement learning (RL) systems have demonstrated impressive results in domains such as image classification, game playing, and robotic control, data efficiency remains a major challenge. Multi-task learning…

机器学习 · 计算机科学 2020-12-23 Tianhe Yu , Saurabh Kumar , Abhishek Gupta , Sergey Levine , Karol Hausman , Chelsea Finn

With the popularity of massive open online courses, grading through crowdsourcing has become a prevalent approach towards large scale classes. However, for getting grades for complex tasks, which require specific skills and efforts for…

人工智能 · 计算机科学 2017-03-31 Lingyu Lyu , Mehmed Kantardzic

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

In this paper, we propose a harmonized rotational gradient method, termed HRGrad, for simultaneously tackling multiscale time-dependent kinetic problems with varying small parameters. These parameters exhibit asymptotic transitions from…

机器学习 · 计算机科学 2026-04-28 Zhangyong Liang

In industrial recommendation systems, multi-task learning (learning multiple tasks simultaneously on a single model) is a predominant approach to save training/serving resources and improve recommendation performance via knowledge transfer…

Multi-Task Learning is a learning paradigm that uses correlated tasks to improve performance generalization. A common way to learn multiple tasks is through the hard parameter sharing approach, in which a single architecture is used to…

机器学习 · 计算机科学 2022-04-15 Angelica Tiemi Mizuno Nakamura , Denis Fernando Wolf , Valdir Grassi

Learning an efficient update rule from data that promotes rapid learning of new tasks from the same distribution remains an open problem in meta-learning. Typically, previous works have approached this issue either by attempting to train a…

机器学习 · 计算机科学 2020-02-19 Sebastian Flennerhag , Andrei A. Rusu , Razvan Pascanu , Francesco Visin , Hujun Yin , Raia Hadsell

Multi-task learning (MTL) aims at solving multiple related tasks simultaneously and has experienced rapid growth in recent years. However, MTL models often suffer from performance degeneration with negative transfer due to learning several…

机器学习 · 计算机科学 2023-02-01 Xin Dong , Ruize Wu , Chao Xiong , Hai Li , Lei Cheng , Yong He , Shiyou Qian , Jian Cao , Linjian Mo

Advancing towards generalist agents necessitates the concurrent processing of multiple tasks using a unified model, thereby underscoring the growing significance of simultaneous model training on multiple downstream tasks. A common issue in…

机器学习 · 计算机科学 2024-11-28 Zhi Zhang , Jiayi Shen , Congfeng Cao , Gaole Dai , Shiji Zhou , Qizhe Zhang , Shanghang Zhang , Ekaterina Shutova

Multimodal learning has developed very fast in recent years. However, during the multimodal training process, the model tends to rely on only one modality based on which it could learn faster, thus leading to inadequate use of other…

机器学习 · 计算机科学 2024-11-05 Zirun Guo , Tao Jin , Jingyuan Chen , Zhou Zhao
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