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In order to learn quickly with few samples, meta-learning utilizes prior knowledge learned from previous tasks. However, a critical challenge in meta-learning is task uncertainty and heterogeneity, which can not be handled via globally…

机器学习 · 计算机科学 2019-11-19 Huaxiu Yao , Ying Wei , Junzhou Huang , Zhenhui Li

Multi-task learning (MTL) is a common machine learning technique that allows the model to share information across different tasks and improve the accuracy of recommendations for all of them. Many existing MTL implementations suffer from…

信息检索 · 计算机科学 2025-04-09 Luyang Wang , Cangcheng Tang , Chongyang Zhang , Jun Ruan , Kai Huang , Jason Dai

We introduce Hierarchical Transformers for Meta-Reinforcement Learning (HTrMRL), a powerful online meta-reinforcement learning approach. HTrMRL aims to address the challenge of enabling reinforcement learning agents to perform effectively…

机器学习 · 计算机科学 2024-02-12 Gresa Shala , André Biedenkapp , Josif Grabocka

Many real-world machine learning applications involve several learning tasks which are inter-related. For example, in healthcare domain, we need to learn a predictive model of a certain disease for many hospitals. The models for each…

机器学习 · 计算机科学 2016-10-03 Inci M. Baytas , Ming Yan , Anil K. Jain , Jiayu Zhou

Session-based recommendation (SR) has become an important and popular component of various e-commerce platforms, which aims to predict the next interacted item based on a given session. Most of existing SR models only focus on exploiting…

信息检索 · 计算机科学 2020-06-19 Wenjing Meng , Deqing Yang , Yanghua Xiao

Much effort has been devoted to evaluate whether multi-task learning can be leveraged to learn rich representations that can be used in various Natural Language Processing (NLP) down-stream applications. However, there is still a lack of…

计算与语言 · 计算机科学 2018-11-27 Victor Sanh , Thomas Wolf , Sebastian Ruder

Meta learning is a promising solution to few-shot learning problems. However, existing meta learning methods are restricted to the scenarios where training and application tasks share the same out-put structure. To obtain a meta model…

机器学习 · 计算机科学 2019-04-22 Yingtian Zou , Jiashi Feng

To improve the efficiency of warehousing system and meet huge customer orders, we aim to solve the challenges of dimension disaster and dynamic properties in hyper scale multi-robot task planning (MRTP) for robotic mobile fulfillment system…

机器人学 · 计算机科学 2026-05-06 Xuan Zhou , Xiang Shi , Lele Zhang , Chen Chen , Hongbo Li , Lin Ma , Fang Deng , Jie Chen

Multi-task learning (MTL) is a machine learning technique aiming to improve model performance by leveraging information across many tasks. It has been used extensively on various data modalities, including electronic health record (EHR)…

We present Multitask Soft Option Learning(MSOL), a hierarchical multitask framework based on Planning as Inference. MSOL extends the concept of options, using separate variational posteriors for each task, regularized by a shared prior.…

Recommending novel content, which expands user horizons by introducing them to new interests, has been shown to improve users' long-term experience on recommendation platforms \cite{chen2021values}. Users however are not constantly looking…

信息检索 · 计算机科学 2023-06-05 Pan Li , Yuyan Wang , Ed H. Chi , Minmin Chen

Multi-agent hierarchical reinforcement learning (MAHRL) has been studied as an effective means to solve intelligent decision problems in complex and large-scale environments. However, most current MAHRL algorithms follow the traditional way…

人工智能 · 计算机科学 2024-11-05 Chanjuan Liu , Jinmiao Cong , Bingcai Chen , Yaochu Jin , Enqiang Zhu

The recommender system is an important form of intelligent application, which assists users to alleviate from information redundancy. Among the metrics used to evaluate a recommender system, the metric of conversion has become more and more…

机器学习 · 计算机科学 2019-03-25 Dongyang Zhao , Liang Zhang , Bo Zhang , Lizhou Zheng , Yongjun Bao , Weipeng Yan

Recent works show that learning contextualized embeddings for words is beneficial for downstream tasks. BERT is one successful example of this approach. It learns embeddings by solving two tasks, which are masked language model (masked LM)…

计算与语言 · 计算机科学 2020-11-10 Çağla Aksoy , Alper Ahmetoğlu , Tunga Güngör

As a key stage of Recommender Systems (RSs), Multi-Task Fusion (MTF) is responsible for merging multiple scores output by Multi-Task Learning (MTL) into a single score, finally determining the recommendation results. Recently, Reinforcement…

信息检索 · 计算机科学 2025-12-08 Peng Liu , Cong Xu , Jiawei Zhu , Ming Zhao , Bin Wang

MTL is a learning paradigm that effectively leverages both task-specific and shared information to address multiple related tasks simultaneously. In contrast to STL, MTL offers a suite of benefits that enhance both the training process and…

In Meta-Reinforcement Learning (meta-RL) an agent is trained on a set of tasks to prepare for and learn faster in new, unseen, but related tasks. The training tasks are usually hand-crafted to be representative of the expected distribution…

人工智能 · 计算机科学 2021-07-07 Ricardo Luna Gutierrez , Matteo Leonetti

Hierarchical multi-label classification (HMC) has gained considerable attention in recent decades. A seminal line of HMC research addresses the problem in two stages: first, training individual classifiers for each class, then integrating…

机器学习 · 计算机科学 2025-11-04 Yuting Ye , Christine Ho , Ci-Ren Jiang , Wayne Tai Lee , Haiyan Huang

Inspired by advances in LLMs, reasoning-enhanced sequential recommendation performs multi-step deliberation before making final predictions, unlocking greater potential for capturing user preferences. However, current methods are…

信息检索 · 计算机科学 2025-12-17 Yifan Shao , Peilin Zhou , Shoujin Wang , Weizhi Zhang , Xu Cai , Sunghun Kim

Hierarchical Reinforcement Learning (HRL) is well-suitedd for solving complex tasks by breaking them down into structured policies. However, HRL agents often struggle with efficient exploration and quick adaptation. To overcome these…

机器学习 · 计算机科学 2025-03-18 Arash Khajooeinejad , Fatemeh Sadat Masoumi , Masoumeh Chapariniya