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Generative recommendations (GR), which usually include item tokenizers and generative Large Language Models (LLMs), have demonstrated remarkable success across a wide range of scenarios. The majority of existing research efforts primarily…

信息检索 · 计算机科学 2025-11-25 Yejing Wang , Shengyu Zhou , Jinyu Lu , Qidong Liu , Xinhang Li , Wenlin Zhang , Feng Li , Pengjie Wang , Jian Xu , Bo Zheng , Xiangyu Zhao

We present GFlowState, a visual analytics system designed to illuminate the training process of Generative Flow Networks (GFlowNets or GFNs). GFlowNets are a probabilistic framework for generating samples proportionally to a reward…

机器学习 · 计算机科学 2026-04-24 Florian Holeczek , Andreas Hinterreiter , Alex Hernandez-Garcia , Marc Streit , Christina Humer

We build a theoretical framework for designing and understanding practical meta-learning methods that integrates sophisticated formalizations of task-similarity with the extensive literature on online convex optimization and sequential…

机器学习 · 计算机科学 2019-12-10 Mikhail Khodak , Maria-Florina Balcan , Ameet Talwalkar

While deep learning has achieved phenomenal successes in many AI applications, its enormous model size and intensive computation requirements pose a formidable challenge to the deployment in resource-limited nodes. There has recently been…

机器学习 · 计算机科学 2020-12-01 Sen Lin , Li Yang , Zhezhi He , Deliang Fan , Junshan Zhang

Recently, a new paradigm, meta learning, has been widely applied to Deep Learning Recommendation Models (DLRM) and significantly improves statistical performance, especially in cold-start scenarios. However, the existing systems are not…

机器学习 · 计算机科学 2024-04-16 Youshao Xiao , Shangchun Zhao , Zhenglei Zhou , Zhaoxin Huan , Lin Ju , Xiaolu Zhang , Lin Wang , Jun Zhou

Prevailing methods for graphs require abundant label and edge information for learning. When data for a new task are scarce, meta-learning can learn from prior experiences and form much-needed inductive biases for fast adaption to new…

机器学习 · 计算机科学 2021-01-12 Kexin Huang , Marinka Zitnik

Generative policies based on diffusion models and flow matching have shown strong promise for offline reinforcement learning (RL), but their applicability remains largely confined to continuous action spaces. To address a broader range of…

机器学习 · 计算机科学 2026-05-14 Fairoz Nower Khan , Nabuat Zaman Nahim , Ruiquan Huang , Haibo Yang , Peizhong Ju

Diffusion models can learn rich representations during data generation, showing potential for Self-Supervised Learning (SSL), but they face a trade-off between generative quality and discriminative performance. Their iterative sampling also…

机器学习 · 计算机科学 2025-12-24 Kosuke Ukita , Tsuyoshi Okita

The design of fair and efficient algorithms for allocating public resources, such as school admissions, housing, or medical residency, has a profound social impact. In one-sided matching problems, where individuals are assigned to items…

机器学习 · 计算机科学 2025-06-17 Mayesha Tasnim , Erman Acar , Sennay Ghebreab

While large language models (LLMs) are increasingly adapted for recommendation systems via supervised fine-tuning (SFT), this approach amplifies popularity bias due to its likelihood maximization objective, compromising recommendation…

信息检索 · 计算机科学 2025-05-13 Chongming Gao , Mengyao Gao , Chenxiao Fan , Shuai Yuan , Wentao Shi , Xiangnan He

Intelligent agents should have the ability to leverage knowledge from previously learned tasks in order to learn new ones quickly and efficiently. Meta-learning approaches have emerged as a popular solution to achieve this. However,…

机器学习 · 计算机科学 2023-02-17 Zhao Mandi , Pieter Abbeel , Stephen James

Generative Flow Networks (GFlowNets) have demonstrated significant performance improvements for generating diverse discrete objects $x$ given a reward function $R(x)$, indicating the utility of the object and trained independently from the…

机器学习 · 计算机科学 2022-11-03 Chanakya Ekbote , Moksh Jain , Payel Das , Yoshua Bengio

Generative Flow Networks (GFlowNets) offer a powerful framework for sampling graphs in proportion to their rewards. However, existing approaches suffer from systematic biases due to inaccuracies in state transition probability computations.…

机器学习 · 统计学 2025-10-17 Hohyun Kim , Seunggeun Lee , Min-hwan Oh

Meta-learning methods aim to build learning algorithms capable of quickly adapting to new tasks in low-data regime. One of the most difficult benchmarks of such algorithms is a one-shot learning problem. In this setting many algorithms face…

机器学习 · 计算机科学 2022-10-04 Andrei Boiarov , Kostiantyn Khabarlak , Igor Yastrebov

Generative Flow Networks (GFlowNets) aim to generate diverse trajectories from a distribution in which the final states of the trajectories are proportional to the reward, serving as a powerful alternative to reinforcement learning for…

人工智能 · 计算机科学 2024-08-14 Shuang Luo , Yinchuan Li , Shunyu Liu , Xu Zhang , Yunfeng Shao , Chao Wu

Despite significant progress, deep reinforcement learning (RL) suffers from data-inefficiency and limited generalization. Recent efforts apply meta-learning to learn a meta-learner from a set of RL tasks such that a novel but related task…

机器学习 · 计算机科学 2019-06-05 Lin Lan , Zhenguo Li , Xiaohong Guan , Pinghui Wang

Federated Learning (FL) aims to train machine learning models for multiple clients without sharing their own private data. Due to the heterogeneity of clients' local data distribution, recent studies explore the personalized FL that learns…

机器学习 · 计算机科学 2023-06-12 Daoyuan Chen , Liuyi Yao , Dawei Gao , Bolin Ding , Yaliang Li

Personalized recommender systems fulfill the daily demands of customers and boost online businesses. The goal is to learn a policy that can generate a list of items that matches the user's demand or interest. While most existing methods…

信息检索 · 计算机科学 2023-06-12 Shuchang Liu , Qingpeng Cai , Zhankui He , Bowen Sun , Julian McAuley , Dong Zheng , Peng Jiang , Kun Gai

While one commonly trains large diffusion models by collecting datasets on target downstream tasks, it is often desired to align and finetune pretrained diffusion models with some reward functions that are either designed by experts or…

机器学习 · 计算机科学 2025-05-20 Zhen Liu , Tim Z. Xiao , Weiyang Liu , Yoshua Bengio , Dinghuai Zhang

Centralized trajectory optimization in the joint space of multiple robots allows access to a larger feasible space that can result in smoother trajectories, especially while planning in tight spaces. Unfortunately, it is often…

机器人学 · 计算机科学 2026-04-22 Simon Idoko , Prajyot Jadhav , Arun Kumar Singh