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Contrastive Learning (CL) performances as a rising approach to address the challenge of sparse and noisy recommendation data. Although having achieved promising results, most existing CL methods only perform either hand-crafted data or…

信息检索 · 计算机科学 2023-11-22 Xiuyuan Qin , Huanhuan Yuan , Pengpeng Zhao , Junhua Fang , Fuzhen Zhuang , Guanfeng Liu , Victor Sheng

Personalized content marketing has become a crucial strategy for digital platforms, aiming to deliver tailored advertisements and recommendations that match user preferences. Traditional recommendation systems often suffer from two…

信息检索 · 计算机科学 2025-09-23 Ruihan Luo , Xuanjing Chen , Ziyang Ding

Existing sequential recommendation methods rely on large amounts of training data and usually suffer from the data sparsity problem. To tackle this, the pre-training mechanism has been widely adopted, which attempts to leverage large-scale…

信息检索 · 计算机科学 2021-02-23 Chaojun Xiao , Ruobing Xie , Yuan Yao , Zhiyuan Liu , Maosong Sun , Xu Zhang , Leyu Lin

Intent learning, which aims to learn users' intents for user understanding and item recommendation, has become a hot research spot in recent years. However, existing methods suffer from complex and cumbersome alternating optimization,…

信息检索 · 计算机科学 2024-11-12 Yue Liu , Shihao Zhu , Jun Xia , Yingwei Ma , Jian Ma , Xinwang Liu , Shengju Yu , Kejun Zhang , Wenliang Zhong

Sequential recommendation is one of the important branches of recommender system, aiming to achieve personalized recommended items for the future through the analysis and prediction of users' ordered historical interactive behaviors.…

信息检索 · 计算机科学 2024-05-09 Zeyu Hu , Yuzhi Xiao , Tao Huang , Xuanrong Huo

Sequential Recommendation (SeqRec) aims to predict the next item by capturing sequential patterns from users' historical interactions, playing a crucial role in many real-world recommender systems. However, existing approaches predominantly…

信息检索 · 计算机科学 2025-08-04 Jiakai Tang , Sunhao Dai , Teng Shi , Jun Xu , Xu Chen , Wen Chen , Jian Wu , Yuning Jiang

Repeat consumption, such as repurchasing items and relistening songs, is a common scenario in daily life. To model repeat consumption, the repeat-aware recommendation has been proposed to predict which item will be re-interacted based on…

信息检索 · 计算机科学 2025-06-11 Shigang Quan , Shui Liu , Zhenzhe Zheng , Fan Wu

Modeling user sequential behaviors has recently attracted increasing attention in the recommendation domain. Existing methods mostly assume coherent preference in the same sequence. However, user personalities are volatile and easily…

信息检索 · 计算机科学 2022-04-01 Weiqi Shao , Xu Chen , Long Xia , Jiashu Zhao , Dawei Yin

Calibrated recommendation, which aims to maintain personalized proportions of categories within recommendations, is crucial in practical scenarios since it enhances user satisfaction by reflecting diverse interests. However, achieving…

信息检索 · 计算机科学 2024-08-06 Hyunsik Jeon , Se-eun Yoon , Julian McAuley

Recommender systems have been actively and extensively studied over past decades. In the meanwhile, the boom of Big Data is driving fundamental changes in the development of recommender systems. In this paper, we propose a dynamic…

信息检索 · 计算机科学 2017-03-13 Shuai Zhang , Lina Yao

The sequential recommendation aims at predicting the next items in user behaviors, which can be solved by characterizing item relationships in sequences. Due to the data sparsity and noise issues in sequences, a new self-supervised learning…

机器学习 · 计算机科学 2022-03-30 Zhiwei Liu , Yongjun Chen , Jia Li , Man Luo , Philip S. Yu , Caiming Xiong

There has been a growing interest in benchmarking sequential recommendation models and reproducing/improving existing models. For example, Rendle et al. improved matrix factorization models by tuning their parameters and hyperparameters.…

信息检索 · 计算机科学 2023-05-23 Fangyu Li , Shenbao Yu , Feng Zeng , Fang Yang

Data augmentation has been actively studied for robust neural networks. Most of the recent data augmentation methods focus on augmenting datasets during the training phase. At the testing phase, simple transformations are still widely used…

计算机视觉与模式识别 · 计算机科学 2020-10-23 Ildoo Kim , Younghoon Kim , Sungwoong Kim

Sequential recommendation is a task to capture hidden user preferences from historical user item interaction data and recommend next items for the user. Significant progress has been made in this domain by leveraging classification based…

信息检索 · 计算机科学 2024-08-30 Panfeng Cao , Pietro Lio

Data augmentation (DA) has been widely investigated to facilitate model optimization in many tasks. However, in most cases, data augmentation is randomly performed for each training sample with a certain probability, which might incur…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Shiqi Lin , Zhizheng Zhang , Xin Li , Wenjun Zeng , Zhibo Chen

This work focuses on in-context data augmentation for intent detection. Having found that augmentation via in-context prompting of large pre-trained language models (PLMs) alone does not improve performance, we introduce a novel approach…

Representation learning in sequential recommendation is critical for accurately modeling user interaction patterns and improving recommendation precision. However, existing approaches predominantly emphasize item-to-item transitions, often…

信息检索 · 计算机科学 2024-07-17 Yang Liu , Yitong Wang , Chenyue Feng

In the realm of music recommendation, sequential recommender systems have shown promise in capturing the dynamic nature of music consumption. Nevertheless, traditional Transformer-based models, such as SASRec and BERT4Rec, while effective,…

Dynamic data selection aims to accelerate training with lossless performance. However, reducing training data inherently limits data diversity, potentially hindering generalization. While data augmentation is widely used to enhance…

机器学习 · 计算机科学 2025-05-13 Suorong Yang , Peng Ye , Furao Shen , Dongzhan Zhou

Recommender systems have played a critical role in diverse digital services such as e-commerce, streaming media, social networks, etc. If we know what a user's intent is in a given session (e.g. do they want to watch short videos or a movie…

信息检索 · 计算机科学 2025-05-22 Sejoon Oh , Moumita Bhattacharya , Yesu Feng , Sudarshan Lamkhede