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Click-Through Rate (CTR) prediction plays a core role in recommender systems, serving as the final-stage filter to rank items for a user. The key to addressing the CTR task is learning feature interactions that are useful for prediction,…

信息检索 · 计算机科学 2023-04-27 Yang Zhang , Tianhao Shi , Fuli Feng , Wenjie Wang , Dingxian Wang , Xiangnan He , Yongdong Zhang

Click-through rate (CTR) prediction serves as a cornerstone of recommender systems. Despite the strong performance of current CTR models based on user behavior modeling, they are still severely limited by interaction sparsity, especially in…

信息检索 · 计算机科学 2025-09-03 Yutian Xiao , Shukuan Wang , Binhao Wang , Zhao Zhang , Yanze Zhang , Shanqi Liu , Chao Feng , Xiang Li , Fuzhen Zhuang

Probabilistic models can learn users' preferences from the history of their item adoptions on a social media site, and in turn, recommend new items to users based on learned preferences. However, current models ignore psychological factors…

信息检索 · 计算机科学 2013-11-07 Jeon-Hyung Kang , Kristina Lerman

Lifelong sequential modeling (LSM) is becoming increasingly critical in social media recommendation systems for predicting the click-through rate (CTR) of items presented to users. Central to this process is the attention mechanism, which…

信息检索 · 计算机科学 2025-04-14 Ting Guo , Zhaoyang Yang , Qinsong Zeng , Ming Chen

Modeling long sequences of user behaviors has emerged as a critical frontier in generative recommendation. However, existing solutions face a dilemma: linear attention mechanisms achieve efficiency at the cost of retrieval precision due to…

信息检索 · 计算机科学 2026-02-23 Lei Xin , Yuhao Zheng , Ke Cheng , Changjiang Jiang , Zifan Zhang , Fanhu Zeng

This research presents an innovative and unique way of solving the advertisement prediction problem which is considered as a learning problem over the past several years. Online advertising is a multi-billion-dollar industry and is growing…

信息检索 · 计算机科学 2017-02-15 Muhammad Junaid Effendi , Syed Abbas Ali

Learning-to-Rank (LTR) models trained from implicit feedback (e.g. clicks) suffer from inherent biases. A well-known one is the position bias -- documents in top positions are more likely to receive clicks due in part to their position…

信息检索 · 计算机科学 2020-07-21 Mucun Tian , Chun Guo , Vito Ostuni , Zhen Zhu

With the rise of large language models (LLMs), recent works have leveraged LLMs to improve the performance of click-through rate (CTR) prediction. However, we argue that a critical obstacle remains in deploying LLMs for practical use: the…

信息检索 · 计算机科学 2024-03-29 Binzong Geng , Zhaoxin Huan , Xiaolu Zhang , Yong He , Liang Zhang , Fajie Yuan , Jun Zhou , Linjian Mo

Click-Through Rate (CTR) prediction, whose aim is to predict the probability of whether a user will click on an item, is an essential task for many online applications. Due to the nature of data sparsity and high dimensionality of CTR…

信息检索 · 计算机科学 2021-08-18 Yichen Xu , Yanqiao Zhu , Feng Yu , Qiang Liu , Shu Wu

Modeling long-term user interests with massive historical user behaviors enhances click-through rate (CTR) prediction performance in advertising and recommendation systems. Typically, a two-stage framework is widely adopted, where a general…

信息检索 · 计算机科学 2026-05-18 Jiangli Shao , Kaifu Zheng , Hao Fang , Huimu Ye , Zhiwei Liu , Bo Zhang , Shu Han , Xingxing Wang

Implicit feedback data, such as user clicks, is commonly used in learning-to-rank (LTR) systems because it is easy to collect and it often reflects user preferences. However, this data is prone to various biases, and training an LTR…

信息检索 · 计算机科学 2026-01-30 Md Aminul Islam , Kathryn Vasilaky , Elena Zheleva

User behavior sequences in modern recommendation systems exhibit significant length heterogeneity, ranging from sparse short-term interactions to rich long-term histories. While longer sequences provide more context, we observe that…

The study of user interest models has received a great deal of attention in click through rate (CTR) prediction recently. These models aim at capturing user interest from different perspectives, including user interest evolution, session…

信息检索 · 计算机科学 2022-06-07 Xiaochen Li , Xin Song , Pengjia Yuan , Xialong Liu , Yu Zhang

Click-based learning to rank (LTR) tackles the mismatch between click frequencies on items and their actual relevance. The approach of previous work has been to assume a model of click behavior and to subsequently introduce a method for…

信息检索 · 计算机科学 2022-06-27 Harrie Oosterhuis

Users' clicks on Web search results are one of the key signals for evaluating and improving web search quality and have been widely used as part of current state-of-the-art Learning-To-Rank(LTR) models. With a large volume of search logs…

信息检索 · 计算机科学 2021-05-24 Jianghong Zhou , Sayyed M. Zahiri , Simon Hughes , Khalifeh Al Jadda , Surya Kallumadi , Eugene Agichtein

Click data collected by modern recommendation systems are an important source of observational data that can be utilized to train learning-to-rank (LTR) systems. However, these data suffer from a number of biases that can result in poor…

信息检索 · 计算机科学 2020-05-13 Zohreh Ovaisi , Ragib Ahsan , Yifan Zhang , Kathryn Vasilaky , Elena Zheleva

Transformer models have achieved remarkable success in sequential recommender systems (SRSs). However, computing the attention matrix in traditional dot-product attention mechanisms results in a quadratic complexity with sequence lengths,…

信息检索 · 计算机科学 2024-11-05 Langming Liu , Xiangyu Zhao , Chi Zhang , Jingtong Gao , Wanyu Wang , Wenqi Fan , Yiqi Wang , Ming He , Zitao Liu , Qing Li

Click-Through Rate (CTR) prediction holds a pivotal place in online advertising and recommender systems since CTR prediction performance directly influences the overall satisfaction of the users and the revenue generated by companies. Even…

信息检索 · 计算机科学 2024-05-22 Serdarcan Dilbaz , Hasan Saribas

Ranking is a crucial module using in the recommender system. In particular, the ranking module using in our YoungTao recommendation scenario is to provide an ordered list of items to users, to maximize the click number throughout the…

信息检索 · 计算机科学 2023-08-29 Shaowei Liu , Yangjun Liu

Continual learning in Neural Machine Translation (NMT) faces the dual challenges of catastrophic forgetting and the high computational cost of retraining. This study establishes Low-Rank Adaptation (LoRA) as a parameter-efficient framework…

计算与语言 · 计算机科学 2025-12-11 Salvador Carrión , Francisco Casacuberta