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Multi-task reinforcement learning could enable robots to scale across a wide variety of manipulation tasks in homes and workplaces. However, generalizing from one task to another and mitigating negative task interference still remains a…

Machine Learning · Computer Science 2024-03-07 Josselin Somerville Roberts , Julia Di

Scientific document representation learning provides powerful embeddings for various tasks, while current methods face challenges across three approaches. 1) Contrastive training with citation-structural signals underutilizes citation…

Information Retrieval · Computer Science 2025-09-10 Zheng Dou , Deqing Wang , Fuzhen Zhuang , Jian Ren , Yanlin Hu

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…

Machine Learning · Computer Science 2020-11-25 Xiangyu Niu , Yifan Sun , Jinyuan Sun

By leveraging large amounts of product data collected across hundreds of live e-commerce websites, we construct 1000 unique classification tasks that share similarly-structured input data, comprised of both text and images. These…

Artificial Intelligence · Computer Science 2021-07-29 Cameron R. Wolfe , Keld T. Lundgaard

Multimodal reasoning in vision-language models (VLMs) typically relies on a two-stage process: supervised fine-tuning (SFT) and reinforcement learning (RL). In standard SFT, all tokens contribute equally to the loss, even though reasoning…

Artificial Intelligence · Computer Science 2026-03-20 Shaked Perek , Ben Wiesel , Avihu Dekel , Nimrod Shabtay , Eli Schwartz

We propose an approach to Multitask Learning (MTL) to make deep learning models faster and lighter for applications in which multiple tasks need to be solved simultaneously, which is particularly useful in embedded, real-time systems. We…

Computer Vision and Pattern Recognition · Computer Science 2017-11-02 Miquel Martí , Atsuto Maki

Multi-Task Learning (MTL) enables a single model to learn multiple tasks simultaneously, leveraging knowledge transfer among tasks for enhanced generalization, and has been widely applied across various domains. However, task imbalance…

Machine Learning · Computer Science 2025-10-22 Xiaohan Qin , Xiaoxing Wang , Ning Liao , Junchi Yan

Complementary-label learning (CLL) is widely used in weakly supervised classification, but it faces a significant challenge in real-world datasets when confronted with class-imbalanced training samples. In such scenarios, the number of…

Machine Learning · Computer Science 2024-03-21 Meng Wei , Yong Zhou , Zhongnian Li , Xinzheng Xu

Traditionally, multitask learning (MTL) assumes that all the tasks are related. This can lead to negative transfer when tasks are indeed incoherent. Recently, a number of approaches have been proposed that alleviate this problem by…

Machine Learning · Computer Science 2012-06-22 Wenliang Zhong , James Kwok

Can performance on the task of action quality assessment (AQA) be improved by exploiting a description of the action and its quality? Current AQA and skills assessment approaches propose to learn features that serve only one task -…

Computer Vision and Pattern Recognition · Computer Science 2019-06-17 Paritosh Parmar , Brendan Tran Morris

Multi-task learning shows strikingly inconsistent results -- sometimes joint training helps substantially, sometimes it actively harms performance -- yet the field lacks a principled framework for predicting these outcomes. We identify a…

Machine Learning · Computer Science 2026-04-10 Jasper Zhang , Bryan Cheng

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…

Machine Learning · Computer Science 2024-06-06 Wooseong Jeong , Kuk-Jin Yoon

A fundamental problem in multi-task learning (MTL) is identifying groups of tasks that should be learned together. Since training MTL models for all possible combinations of tasks is prohibitively expensive for large task sets, a crucial…

Machine Learning · Computer Science 2026-02-24 Afiya Ayman , Ayan Mukhopadhyay , Aron Laszka

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…

Information Retrieval · Computer Science 2023-03-13 Xuanhua Yang , Jianxin Zhao , Shaoguo Liu , Liang Wang , Bo Zheng

Scaling the amount of data used for supervied fine-tuning(SFT) does not guarantee the proportional gains in model performance, highlighting a critical need to understand what makes training samples effective. This work identifies two…

Artificial Intelligence · Computer Science 2025-10-29 Chengwei Wu , Li Du , Hanyu Zhao , Yiming Ju , Jiapu Wang , Tianyu Chen , Haoyi Zhou

Large Language Models (LLMs) have demonstrated remarkable capabilities across diverse domains, but developing high-performing models for specialized applications often requires substantial human annotation -- a process that is…

Computation and Language · Computer Science 2025-07-30 Abhinav Arabelly , Jagrut Nemade , Robert D Nowak , Jifan Zhang

Multi-task learning can leverage information learned by one task to benefit the training of other tasks. Despite this capacity, naively training all tasks together in one model often degrades performance, and exhaustively searching through…

Machine Learning · Computer Science 2021-10-27 Christopher Fifty , Ehsan Amid , Zhe Zhao , Tianhe Yu , Rohan Anil , Chelsea Finn

We study and quantify the generalization patterns of multitask learning (MTL) models for sequence labeling tasks. MTL models are trained to optimize a set of related tasks jointly. Although multitask learning has achieved improved…

Machine Learning · Computer Science 2020-09-29 Gabriele Bettgenhäuser , Michael A. Hedderich , Dietrich Klakow

As large language models (LLMs) continue to scale in size, the computational overhead has become a major bottleneck for task-specific fine-tuning. While low-rank adaptation (LoRA) effectively curtails this cost by confining the weight…

Machine Learning · Computer Science 2026-05-15 Yilang Zhang , Xiaodong Yang , Yiwei Cai , Georgios B. Giannakis

Instead of making behavioral decisions directly from the exponentially expanding joint observational-action space, subtask-based multi-agent reinforcement learning (MARL) methods enable agents to learn how to tackle different subtasks. Most…

Artificial Intelligence · Computer Science 2024-03-05 Wenjing Zhang , Wei Zhang