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Adapters, a plug-in neural network module with some tunable parameters, have emerged as a parameter-efficient transfer learning technique for adapting pre-trained models to downstream tasks, especially for natural language processing (NLP)…

Information Retrieval · Computer Science 2023-12-11 Junchen Fu , Fajie Yuan , Yu Song , Zheng Yuan , Mingyue Cheng , Shenghui Cheng , Jiaqi Zhang , Jie Wang , Yunzhu Pan

Inference-time alignment enhances the performance of large language models without requiring additional training or fine-tuning but presents challenges due to balancing computational efficiency with high-quality output. Best-of-N (BoN)…

Computation and Language · Computer Science 2025-09-04 Jiahao Qiu , Yifu Lu , Yifan Zeng , Jiacheng Guo , Jiayi Geng , Chenhao Zhu , Xinzhe Juan , Ling Yang , Huazheng Wang , Kaixuan Huang , Yue Wu , Mengdi Wang

Sequential recommendation systems often struggle to make predictions or take action when dealing with cold-start items that have limited amount of interactions. In this work, we propose SimRec - a new approach to mitigate the cold-start…

Information Retrieval · Computer Science 2024-10-30 Shaked Brody , Shoval Lagziel

Statistical image reconstruction in X-Ray computed tomography yields large-scale regularized linear least-squares problems with nonnegativity bounds, where the memory footprint of the operator is a concern. Discretizing images in…

Optimization and Control · Mathematics 2020-07-03 Guillaume Mestdagh , Yves Goussard , Dominique Orban

Many real-world domains are subject to a structured non-stationarity which affects the agent's goals and the environmental dynamics. Meta-reinforcement learning (RL) has been shown successful for training agents that quickly adapt to…

Machine Learning · Computer Science 2021-05-20 Riccardo Poiani , Andrea Tirinzoni , Marcello Restelli

Transformer-based sequential recommenders, such as SASRec or BERT4Rec, typically rely solely on learned item ID embeddings, making them vulnerable to the item cold-start problem, particularly in environments with dynamic item catalogs.…

Information Retrieval · Computer Science 2025-08-27 Jan Malte Lichtenberg , Antonio De Candia , Matteo Ruffini

Session-based recommendation is an important task for e-commerce services, where a large number of users browse anonymously or may have very distinct interests for different sessions. In this paper we present one of the winning solutions…

Information Retrieval · Computer Science 2021-07-13 Gabriel de Souza P. Moreira , Sara Rabhi , Ronay Ak , Md Yasin Kabir , Even Oldridge

We present a neat yet effective recursive operation on vision transformers that can improve parameter utilization without involving additional parameters. This is achieved by sharing weights across the depth of transformer networks. The…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Zhiqiang Shen , Zechun Liu , Eric Xing

Learning effective recommendation models from sparse user interactions represents a fundamental challenge in developing sequential recommendation methods. Recently, pre-training-based methods have been developed to tackle this challenge.…

Information Retrieval · Computer Science 2023-09-21 Bo Peng , Srinivasan Parthasarathy , Xia Ning

Hierarchical reinforcement learning (RL) has the potential to enable effective decision-making over long timescales. Existing approaches, while promising, have yet to realize the benefits of large-scale training. In this work, we identify…

Machine Learning · Computer Science 2026-05-11 Mikael Henaff , Scott Fujimoto , Michael Matthews , Michael Rabbat

Session-based recommendation, which aims to predict the next item of users' interest as per an existing sequence interaction of items, has attracted growing applications of Contrastive Learning (CL) with improved user and item…

Information Retrieval · Computer Science 2023-12-21 Zhengxiang Shi , Xi Wang , Aldo Lipani

With the growth of global maritime transportation, energy optimization has become crucial for reducing costs and ensuring operational efficiency. Shaft power is the mechanical power transmitted from the engine to the shaft and directly…

Machine Learning · Computer Science 2025-10-06 Akriti Sharma , Dogan Altan , Dusica Marijan , Arnbjørn Maressa

In recent years, data-driven reinforcement learning (RL), also known as offline RL, have gained significant attention. However, the role of data sampling techniques in offline RL has been overlooked despite its potential to enhance online…

Machine Learning · Computer Science 2025-03-24 Jinyi Liu , Yi Ma , Jianye Hao , Yujing Hu , Yan Zheng , Tangjie Lv , Changjie Fan

Many optimization tasks involve streaming data with unknown concept drifts, posing a significant challenge as Streaming Data-Driven Optimization (SDDO). Existing methods, while leveraging surrogate model approximation and historical…

Machine Learning · Computer Science 2025-12-09 Yuan-Ting Zhong , Ting Huang , Xiaolin Xiao , Yue-Jiao Gong

Reasoning about actions and change (RAC) is essential to understand and interact with the ever-changing environment. Previous AI research has shown the importance of fundamental and indispensable knowledge of actions, i.e., preconditions…

Computation and Language · Computer Science 2022-11-28 Weinan He , Canming Huang , Zhanhao Xiao , Yongmei Liu

Symbolic regression (SR) is a challenging task in machine learning that involves finding a mathematical expression for a function based on its values. Recent advancements in SR have demonstrated the effectiveness of pre-trained…

Machine Learning · Computer Science 2023-10-31 Parshin Shojaee , Kazem Meidani , Amir Barati Farimani , Chandan K. Reddy

Sequential Recommender Systems (SRSs) have emerged as a highly efficient approach to recommendation systems. By leveraging sequential data, SRSs can identify temporal patterns in user behaviour, significantly improving recommendation…

Deep neural networks (DNNs) have delivered a remarkable performance in many tasks of computer vision. However, over-parameterized representations of popular architectures dramatically increase their computational complexity and storage…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Chang Nie , Huan Wang , Lu Zhao

Recent research has achieved impressive progress in the session-based recommendation. However, information such as item knowledge and click time interval, which could be potentially utilized to improve the performance, remains largely…

Information Retrieval · Computer Science 2021-12-17 Rongzhi Zhang , Yulong Gu , Xiaoyu Shen , Hui Su

This study proposes a novel deep-learning-based method for generating reduced representations of turbulent flows that ensures efficient storage and transfer while maintaining high accuracy during decompression. A Swin-Transformer network…

Fluid Dynamics · Physics 2023-09-19 Meng Zhang , Mustafa Z Yousif , Linqi Yu , HeeChang Lim