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Recommender systems that learn from implicit feedback often use large volumes of a single type of implicit user feedback, such as clicks, to enhance the prediction of sparse target behavior such as purchases. Using multiple types of…

Large language models (LLMs) have shown that generative pretraining can distill vast world knowledge into compact token representations. While LLMs encapsulate extensive world knowledge, they remain limited in modeling the behavioral…

机器学习 · 计算机科学 2026-03-31 Guilin Li , Yun Zhang , Xiuyuan Chen , Chengqi Li , Bo Wang , Linghe Kong , Wenjia Wang , Weiran Huang , Matthias Hwai Yong Tan

Sequential recommendation has become increasingly essential in various online services. It aims to model the dynamic preferences of users from their historical interactions and predict their next items. The accumulated user behavior records…

信息检索 · 计算机科学 2021-02-19 Qiaoyu Tan , Jianwei Zhang , Ninghao Liu , Xiao Huang , Hongxia Yang , Jingren Zhou , Xia Hu

The past a few years have witnessed the great success of large language models, demonstrating powerful capabilities in comprehending textual data and generating human-like languages. Large language models achieve success by being trained on…

计算与语言 · 计算机科学 2025-03-20 Estrid He , Tabinda Sarwar , Ibrahim Khalil , Xun Yi , Ke Wang

Session-based recommender systems capture the short-term interest of a user within a session. Session contexts (i.e., a user's high-level interests or intents within a session) are not explicitly given in most datasets, and implicitly…

信息检索 · 计算机科学 2022-08-22 Sejoon Oh , Ankur Bhardwaj , Jongseok Han , Sungchul Kim , Ryan A. Rossi , Srijan Kumar

Deep learning techniques have revolutionised medical imaging, improving diagnostic accuracy and enabling both more accurate and earlier disease detection. However, the relationship between pre-training strategies and downstream performance…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Felix Krones

Inspired by the great success of language model (LM)-based pre-training, recent studies in visual document understanding have explored LM-based pre-training methods for modeling text within document images. Among them, pre-training that…

计算机视觉与模式识别 · 计算机科学 2023-09-25 Daehee Kim , Yoonsik Kim , DongHyun Kim , Yumin Lim , Geewook Kim , Taeho Kil

Product search is one of the most popular methods for customers to discover products online. Most existing studies on product search focus on developing effective retrieval models that rank items by their likelihood to be purchased. They,…

信息检索 · 计算机科学 2019-09-17 Qingyao Ai , Yongfeng Zhang , Keping Bi , W. Bruce Croft

Small on-device models have been successfully trained with user-level differential privacy (DP) for next word prediction and image classification tasks in the past. However, existing methods can fail when directly applied to learn embedding…

Understanding user intentions is essential for improving product recommendations, navigation suggestions, and query reformulations. However, user intentions can be intricate, involving multiple sessions and attribute requirements connected…

人工智能 · 计算机科学 2024-06-17 Jiaxin Bai , Chen Luo , Zheng Li , Qingyu Yin , Yangqiu Song

Deep visuomotor policy learning, which aims to map raw visual observation to action, achieves promising results in control tasks such as robotic manipulation and autonomous driving. However, it requires a huge number of online interactions…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Qihang Zhang , Zhenghao Peng , Bolei Zhou

Deep learning recommendation models (DLRMs) are at the heart of the current e-commerce industry. However, the amount of training data used to train these large models is growing exponentially, leading to substantial training hurdles. The…

信息检索 · 计算机科学 2024-07-25 Hossein Entezari Zarch , Abdulla Alshabanah , Chaoyi Jiang , Murali Annavaram

Session-based recommender systems aim to improve recommendations in short-term sessions that can be found across many platforms. A critical challenge is to accurately model user intent with only limited evidence in these short sessions. For…

信息检索 · 计算机科学 2021-12-30 Jianling Wang , Kaize Ding , Ziwei Zhu , James Caverlee

Time-series analysis plays a pivotal role across a range of critical applications, from finance to healthcare, which involves various tasks, such as forecasting and classification. To handle the inherent complexities of time-series data,…

机器学习 · 计算机科学 2024-05-20 Jiawei Li , Jingshu Peng , Haoyang Li , Lei Chen

Conversation disentanglement aims to group utterances into detached sessions, which is a fundamental task in processing multi-party conversations. Existing methods have two main drawbacks. First, they overemphasize pairwise utterance…

计算与语言 · 计算机科学 2024-09-04 Chengyu Huang , Zheng Zhang , Hao Fei , Lizi Liao

User intention which often changes dynamically is considered to be an important factor for modeling users in the design of recommendation systems. Recent studies are starting to focus on predicting user intention (what users want) beyond…

信息检索 · 计算机科学 2021-07-19 Arpita Chaudhuri , Debasis Samanta , Monalisa Sarma

Session-based recommendation aims to predict a user's next action based on previous actions in the current session. The major challenge is to capture authentic and complete user preferences in the entire session. Recent work utilizes graph…

信息检索 · 计算机科学 2022-01-11 Jiayan Guo , Yaming Yang , Xiangchen Song , Yuan Zhang , Yujing Wang , Jing Bai , Yan Zhang

User modeling (UM) aims to discover patterns or learn representations from user data about the characteristics of a specific user, such as profile, preference, and personality. The user models enable personalization and suspiciousness…

计算与语言 · 计算机科学 2023-12-27 Zhaoxuan Tan , Meng Jiang

Foundation models have recently gained attention within the field of machine learning thanks to its efficiency in broad data processing. While researchers had attempted to extend this success to time series models, the main challenge is…

机器学习 · 计算机科学 2023-11-22 Trang H. Tran , Lam M. Nguyen , Kyongmin Yeo , Nam Nguyen , Roman Vaculin

Understanding the intent behind chat between customers and customer service agents has become a crucial problem nowadays due to an exponential increase in the use of the Internet by people from different cultures and educational…

人工智能 · 计算机科学 2021-09-07 Bencheng Wei