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Cognitive diagnosis aims to gauge students' mastery levels based on their response logs. Serving as a pivotal module in web-based online intelligent education systems (WOIESs), it plays an upstream and fundamental role in downstream tasks…

人工智能 · 计算机科学 2024-04-18 Shuo Liu , Junhao Shen , Hong Qian , Aimin Zhou

Cognitive diagnosis model (CDM) is a fundamental and upstream component in intelligent education. It aims to infer students' mastery levels based on historical response logs. However, existing CDMs usually follow the ID-based embedding…

人工智能 · 计算机科学 2024-10-22 Yuanhao Liu , Shuo Liu , Yimeng Liu , Jingwen Yang , Hong Qian

Personalized learner modeling using cognitive diagnosis (CD), which aims to model learners' cognitive states by diagnosing learner traits from behavioral data, is a fundamental yet significant task in many web learning services. Existing…

人工智能 · 计算机科学 2024-02-20 Jiatong Li , Qi Liu , Fei Wang , Jiayu Liu , Zhenya Huang , Fangzhou Yao , Linbo Zhu , Yu Su

Cognitive Diagnosis Models (CDMs) are designed to assess students' cognitive states by analyzing their performance across a series of exercises. However, existing CDMs often struggle with diagnosing infrequent students and exercises due to…

人工智能 · 计算机科学 2025-02-11 Zhiang Dong , Jingyuan Chen , Fei Wu

Causal dynamics models (CDMs) have demonstrated significant potential in addressing various challenges in reinforcement learning. To learn CDMs, recent studies have performed causal discovery to capture the causal dependencies among…

机器学习 · 计算机科学 2024-05-22 Zhongwei Yu , Jingqing Ruan , Dengpeng Xing

Reading is foundational for educational, employment, and economic outcomes, but a persistent proportion of students globally struggle to develop adequate reading skills. Some countries promote digital tools to support reading development,…

应用统计 · 统计学 2026-03-19 Yawen Ma , Anastasia Ushakova , Kate Cain , Gabriel Wallin

Online Continual Learning (OCL) empowers machine learning models to acquire new knowledge online across a sequence of tasks. However, OCL faces a significant challenge: catastrophic forgetting, wherein the model learned in previous tasks is…

机器学习 · 计算机科学 2024-05-16 Fan Lyu , Daofeng Liu , Linglan Zhao , Zhang Zhang , Fanhua Shang , Fuyuan Hu , Wei Feng , Liang Wang

Cognitive Diagnosis (CD) has become a critical task in AI-empowered education, supporting personalized learning by accurately assessing students' cognitive states. However, traditional CD models often struggle in cold-start scenarios due to…

计算与语言 · 计算机科学 2025-05-28 Yu He , Zihan Yao , Chentao Song , Tianyu Qi , Jun Liu , Ming Li , Qing Huang

Joint clustering and feature learning methods have shown remarkable performance in unsupervised representation learning. However, the training schedule alternating between feature clustering and network parameters update leads to unstable…

计算机视觉与模式识别 · 计算机科学 2020-06-19 Xiaohang Zhan , Jiahao Xie , Ziwei Liu , Yew Soon Ong , Chen Change Loy

Cognitive diagnosis (CD) aims to reveal students' proficiency in specific knowledge concepts. With the increasing adoption of intelligent education applications, accurately assessing students' knowledge mastery has become an urgent…

计算机与社会 · 计算机科学 2024-12-09 Xinjie Sun , Qi Liu , Kai Zhang , Shuanghong Shen , Fei Wang , Yan Zhuang , Zheng Zhang , Weiyin Gong , Shijin Wang , Lina Yang , Xingying Huo

Cognitive diagnosis (CD) models latent cognitive states of human learners by analyzing their response patterns on diagnostic tests, serving as a crucial machine learning technique for educational assessment and evaluation. Traditional…

机器学习 · 计算机科学 2025-07-15 Jiatong Li , Qi Liu , Mengxiao Zhu

Cognitive diagnosis is a fundamental issue in intelligent education, which aims to discover the proficiency level of students on specific knowledge concepts. Existing approaches usually mine linear interactions of student exercising process…

机器学习 · 计算机科学 2020-03-04 Fei Wang , Qi Liu , Enhong Chen , Zhenya Huang , Yuying Chen , Yu Yin , Zai Huang , Shijin Wang

Representation learning for images has been advanced by recent progress in more complex neural models such as the Vision Transformers and new learning theories such as the structural causal models. However, these models mainly rely on the…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Zitan Chen , Zhuang Qi , Xiao Cao , Xiangxian Li , Xiangxu Meng , Lei Meng

Interactive artificial intelligence in the motion control field is an interesting topic, especially when universal knowledge is adaptive to multiple tasks and universal environments. Despite there being increasing efforts in the field of…

机器学习 · 计算机科学 2024-09-12 Luo Ji , Runji Lin

Cognitive Diagnosis (CD) aims to evaluate students' cognitive states based on their interaction data, enabling downstream applications such as exercise recommendation and personalized learning guidance. However, existing methods often…

机器学习 · 计算机科学 2024-12-09 Fei Liu , Yizhong Zhang , Shuochen Liu , Shengwei Ji , Kui Yu , Le Wu

Fault diagnosis (FD) is essential for maintaining operational safety and minimizing economic losses by detecting system abnormalities. Recently, deep learning (DL)-driven FD methods have gained prominence, offering significant improvements…

机器学习 · 计算机科学 2024-08-13 Dandan Zhao , Karthick Sharma , Hongpeng Yin , Yuxin Qi , Shuhao Zhang

Remote sensing image interpretation plays a critical role in environmental monitoring, urban planning, and disaster assessment. However, acquiring high-quality labeled data is often costly and time-consuming. To address this challenge, we…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Tong Wang , Guanzhou Chen , Xiaodong Zhang , Chenxi Liu , Jiaqi Wang , Xiaoliang Tan , Wenchao Guo , Qingyuan Yang , Kaiqi Zhang

Cross-domain offline reinforcement learning (RL) seeks to enhance sample efficiency in offline RL by utilizing additional offline source datasets. A key challenge is to identify and utilize source samples that are most relevant to the…

机器学习 · 计算机科学 2025-10-28 Linh Le Pham Van , Minh Hoang Nguyen , Duc Kieu , Hung Le , Hung The Tran , Sunil Gupta

Online continual learning, especially when task identities and task boundaries are unavailable, is a challenging continual learning setting. One representative kind of methods for online continual learning is replay-based methods, in which…

机器学习 · 计算机科学 2022-09-26 Yan-Shuo Liang , Wu-Jun Li

Online learning, where feature spaces can change over time, offers a flexible learning paradigm that has attracted considerable attention. However, it still faces three significant challenges. First, the heterogeneity of real-world data…

机器学习 · 计算机科学 2025-07-17 Shengda Zhuo , Di Wu , Yi He , Shuqiang Huang , Xindong Wu
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