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CTR prediction is essential for modern recommender systems. Ranging from early factorization machines to deep learning based models in recent years, existing CTR methods focus on capturing useful feature interactions or mining important…

Information Retrieval · Computer Science 2022-01-31 Wei Guo , Can Zhang , Zhicheng He , Jiarui Qin , Huifeng Guo , Bo Chen , Ruiming Tang , Xiuqiang He , Rui Zhang

Knowledge Tracing (KT) plays a central role in assessing students skill mastery and predicting their future performance. While deep learning based KT models achieve superior predictive accuracy compared to traditional methods, their…

Computers and Society · Computer Science 2025-09-24 Sein Minn , Roger Nkambou

Session-based recommendation (SBR) is a challenging task, which aims at recommending next items based on anonymous interaction sequences. Despite the superior performance of existing methods for SBR, there are still several limitations: (i)…

Information Retrieval · Computer Science 2022-01-03 Qi Shen , Shixuan Zhu , Yitong Pang , Yiming Zhang , Zhihua Wei

In recent years, live streaming platforms have gained immense popularity as they allow users to broadcast their videos and interact in real-time with hosts and peers. Due to the dynamic changes of live content, accurate recommendation…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Jiaxin Deng , Dong Shen , Shiyao Wang , Xiangyu Wu , Fan Yang , Guorui Zhou , Gaofeng Meng

To alleviate data sparsity and cold-start problems of traditional recommender systems (RSs), incorporating knowledge graphs (KGs) to supplement auxiliary information has attracted considerable attention recently. However, simply integrating…

Information Retrieval · Computer Science 2022-01-04 Yankai Chen , Yaming Yang , Yujing Wang , Jing Bai , Xiangchen Song , Irwin King

With the rapid development of online education system, knowledge tracing which aims at predicting students' knowledge state is becoming a critical and fundamental task in personalized education. Traditionally, existing methods are…

Machine Learning · Computer Science 2020-01-15 Song Cheng , Qi Liu , Enhong Chen

The success of online social platforms hinges on their ability to predict and understand user behavior at scale. Here, we present data suggesting that context-aware modeling approaches may offer a holistic yet lightweight and potentially…

Machine Learning · Computer Science 2024-06-17 Heinrich Peters , Yozen Liu , Francesco Barbieri , Raiyan Abdul Baten , Sandra C. Matz , Maarten W. Bos

Recommender systems are one of the most successful applications of machine learning and data science. They are successful in a wide variety of application domains, including e-commerce, media streaming content, email marketing, and…

Information Retrieval · Computer Science 2023-04-04 Juan Pablo Equihua , Maged Ali , Henrik Nordmark , Berthold Lausen

Knowledge tracing aims to model students' past answer sequences to track the change in their knowledge acquisition during exercise activities and to predict their future learning performance. Most existing approaches ignore the fact that…

Machine Learning · Computer Science 2023-02-07 Yuqi Yue , Xiaoqing Sun , Weidong Ji , Zengxiang Yin , Chenghong Sun

Click-through rate (CTR) prediction, which predicts the probability of a user clicking an ad, is a fundamental task in recommender systems. The emergence of heterogeneous information, such as user profile and behavior sequences, depicts…

E-commerce web applications are almost ubiquitous in our day to day life, however as useful as they are, most of them have little to no adaptation to user needs, which in turn can cause both lower conversion rates as well as unsatisfied…

Information Retrieval · Computer Science 2019-05-30 Mihai Cristian Pîrvu , Alexandra Anghel

Knowledge Tracing (KT) is a core component of Intelligent Tutoring Systems, modeling learners' knowledge state to predict future performance and provide personalized learning support. Traditional KT models assume that learners' learning…

Machine Learning · Computer Science 2025-05-27 Yiyun Zhou , Zheqi Lv , Shengyu Zhang , Jingyuan Chen

Neural processes (NPs) learn stochastic processes and predict the distribution of target output adaptively conditioned on a context set of observed input-output pairs. Furthermore, Attentive Neural Process (ANP) improved the prediction…

Machine Learning · Computer Science 2019-10-22 Shenghao Qin , Jiacheng Zhu , Jimmy Qin , Wenshuo Wang , Ding Zhao

Repository-level code comprehension and knowledge sharing remain core challenges in software engineering. Large language models (LLMs) have shown promise by generating explanations of program structure and logic. However, these approaches…

Software Engineering · Computer Science 2025-08-06 Alex Wolf , Marco Edoardo Palma , Pooja Rani , Harald C. Gall

Click-through rate (CTR) prediction plays a crucial role in modern recommender systems. While many existing methods utilize ensemble networks to improve CTR model performance, they typically restrict the ensemble to only two or three…

Information Retrieval · Computer Science 2025-06-23 Honghao Li , Lei Sang , Yi Zhang , Guangming Cui , Yiwen 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…

Information Retrieval · Computer Science 2025-09-03 Yutian Xiao , Shukuan Wang , Binhao Wang , Zhao Zhang , Yanze Zhang , Shanqi Liu , Chao Feng , Xiang Li , Fuzhen Zhuang

Unbiased learning to rank (ULTR), which aims to learn unbiased ranking models from biased user behavior logs, plays an important role in Web search. Previous research on ULTR has studied a variety of biases in users' clicks, such as…

Information Retrieval · Computer Science 2025-08-29 Zechun Niu , Lang Mei , Liu Yang , Ziyuan Zhao , Qiang Yan , Jiaxin Mao , Ji-Rong Wen

Predicting the next interaction of a short-term interaction session is a challenging task in session-based recommendation. Almost all existing works rely on item transition patterns, and neglect the impact of user historical sessions while…

Information Retrieval · Computer Science 2022-03-01 Yitong Pang , Lingfei Wu , Qi Shen , Yiming Zhang , Zhihua Wei , Fangli Xu , Ethan Chang , Bo Long , Jian Pei

Recommender system (RS) devotes to predicting user preference to a given item and has been widely deployed in most web-scale applications. Recently, knowledge graph (KG) attracts much attention in RS due to its abundant connective…

Information Retrieval · Computer Science 2020-05-28 Yufei Feng , Binbin Hu , Fuyu Lv , Qingwen Liu , Zhiqiang Zhang , Wenwu Ou

Recent studies on Click-Through Rate (CTR) prediction has reached new levels by modeling longer user behavior sequences. Among others, the two-stage methods stand out as the state-of-the-art (SOTA) solution for industrial applications. The…

Information Retrieval · Computer Science 2022-09-27 Qiwei Chen , Yue Xu , Changhua Pei , Shanshan Lv , Tao Zhuang , Junfeng Ge