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Knowledge tracing (KT) models aim to predict students' future performance based on their historical interactions. Most existing KT models rely exclusively on human-defined knowledge concepts (KCs) associated with exercises. As a result, the…

Machine Learning · Computer Science 2025-01-20 Yahya Badran , Christine Preisach

We introduce the Strategic Doubly Robust (SDR) estimator, a novel framework that integrates strategic equilibrium modeling with doubly robust estimation for causal inference in strategic environments. SDR addresses endogenous treatment…

Machine Learning · Computer Science 2026-04-03 Sibo Xiao

Proximal causal learning is a promising framework for identifying the causal effect under the existence of unmeasured confounders. Within this framework, the doubly robust (DR) estimator was derived and has shown its effectiveness in…

Methodology · Statistics 2024-03-12 Yong Wu , Yanwei Fu , Shouyan Wang , Xinwei Sun

Post-click conversion rate (CVR) prediction is an essential task for discovering user interests and increasing platform revenues in a range of industrial applications. One of the most challenging problems of this task is the existence of…

Machine Learning · Computer Science 2022-11-15 Quanyu Dai , Haoxuan Li , Peng Wu , Zhenhua Dong , Xiao-Hua Zhou , Rui Zhang , Rui zhang , Jie Sun

In theoretical cognitive science, there is a tension between highly structured models whose parameters have a direct psychological interpretation and highly complex, general-purpose models whose parameters and representations are difficult…

Artificial Intelligence · Computer Science 2016-06-22 Mohammad Khajah , Robert V. Lindsey , Michael C. Mozer

Knowledge tracing is one of the key research areas for empowering personalized education. It is a task to model students' mastery level of a knowledge component (KC) based on their historical learning trajectories. In recent years, a…

Artificial Intelligence · Computer Science 2018-06-07 Chun-Kit Yeung , Dit-Yan Yeung

Knowledge tracing (KT) is a crucial task in computer-aided education and intelligent tutoring systems, predicting students' performance on new questions from their responses to prior ones. An accurate KT model can capture a student's…

Computers and Society · Computer Science 2025-02-14 Jiajun Cui , Hong Qian , Chanjin Zheng , Lu Wang , Mo Yu , Wei Zhang

Knowledge Tracing (KT) is crucial in education assessment, which focuses on depicting students' learning states and assessing students' mastery of subjects. With the rise of modern online learning platforms, particularly massive open online…

Machine Learning · Computer Science 2025-01-22 Weihua Cheng , Hanwen Du , Chunxiao Li , Ersheng Ni , Liangdi Tan , Tianqi Xu , Yongxin Ni

Knowledge tracing allows Intelligent Tutoring Systems to infer which topics or skills a student has mastered, thus adjusting curriculum accordingly. Deep Learning based models like Deep Knowledge Tracing (DKT) and Dynamic Key-Value Memory…

Machine Learning · Computer Science 2021-01-28 Xinyi Ding , Eric C. Larson

Knowledge Tracing (KT) models students' knowledge states based on learning interactions to predict performance. While deep learning-based KT models have boosted predictive accuracy, most models rely on deterministic vector embeddings and…

Artificial Intelligence · Computer Science 2026-05-12 Siyu Wu , Cong Xu , Wei Zhang

Knowledge tracing (KT) aims to estimate a student's evolving knowledge state and predict their performance on new exercises based on performance history. Many realistic classroom settings for KT are typically low-resource in data and…

Computation and Language · Computer Science 2025-06-12 Xinyi Gao , Qiucheng Wu , Yang Zhang , Xuechen Liu , Kaizhi Qian , Ying Xu , Shiyu Chang

Temporal-Difference (TD) learning methods, such as Q-Learning, have proven effective at learning a policy to perform control tasks. One issue with methods like Q-Learning is that the value update introduces bias when predicting the TD…

Machine Learning · Computer Science 2021-10-29 Litian Liang , Yaosheng Xu , Stephen McAleer , Dailin Hu , Alexander Ihler , Pieter Abbeel , Roy Fox

Robust reinforcement learning (RL) is to find a policy that optimizes the worst-case performance over an uncertainty set of MDPs. In this paper, we focus on model-free robust RL, where the uncertainty set is defined to be centering at a…

Machine Learning · Computer Science 2021-10-29 Yue Wang , Shaofeng Zou

In contemporary data-driven environments, the generation and processing of multivariate time series data is an omnipresent challenge, often complicated by time delays between different time series. These delays, originating from a multitude…

Machine Learning · Computer Science 2024-08-26 Jiajie Wang , Zhiyuan Jerry Lin , Wen Chen

Clicks on rankings suffer from position-bias: generally items on lower ranks are less likely to be examined - and thus clicked - by users, in spite of their actual preferences between items. The prevalent approach to unbiased click-based…

Machine Learning · Computer Science 2022-11-01 Harrie Oosterhuis

Temporal difference learning (TD) is a foundational concept in reinforcement learning (RL), aimed at efficiently assessing a policy's value function. TD($\lambda$), a potent variant, incorporates a memory trace to distribute the prediction…

Machine Learning · Computer Science 2024-02-13 Jianfei Ma

Standard supervised training for deepfake detection treats all samples with uniform importance, which can be suboptimal for learning robust and generalizable features. In this work, we propose a novel Tutor-Student Reinforcement Learning…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Zhanhe Lei , Zhongyuan Wang , Jikang Cheng , Baojin Huang , Yuhong Yang , Zhen Han , Chao Liang , Dengpan Ye

Temporal-Difference (TD) learning is a standard and very successful reinforcement learning approach, at the core of both algorithms that learn the value of a given policy, as well as algorithms which learn how to improve policies.…

Machine Learning · Computer Science 2020-06-17 Mingde Zhao

Programming Knowledge Tracing (PKT) has recently advanced through hybrid approaches that integrate attention-based feature modeling for code representation with RNN-based sequential prediction. While these models report strong empirical…

Machine Learning · Computer Science 2026-05-07 Jaewook Kim , Hyeoncheol Kim

Knowledge tracing (KT) models, e.g., the deep knowledge tracing (DKT) model, track an individual learner's acquisition of skills over time by examining the learner's performance on questions related to those skills. A practical limitation…

Machine Learning · Computer Science 2020-05-27 Shashank Sonkar , Andrew E. Waters , Andrew S. Lan , Phillip J. Grimaldi , Richard G. Baraniuk