Key frame extraction of online video based on optimized frame difference. - Huayong Liu; Wenting Meng; Zhi Liu 011 (FSKD, 2012)

A Novel Random Subspace Method for Online Writeprint Identification. - Zhi Liu 011; Zongkai Yang; Sanya Liu; Wenting Meng (J. Comput., 2012)

Adaptive multi-view selection for semi-supervised emotion recognition of posts in online student community. - Zongkai Yang; Zhi Liu 011; Sanya Liu; Lei Min; Wenting Meng (Neurocomputing, 2014)

Blind infrared spectroscopic data restoration with the similarity of multi-scales regularization. - Hai Liu 004; Zhaoli Zhang; Sanya Liu; Jiangbo Shu; Zhi Liu 011 (APSIPA, 2015)

Characterizing Students' Behavioral Patterns in an Online Reading Test. - Hercy N. H. Cheng; Jian-Wen Sun; Zhi Liu 011; Sanya Liu (ICCE, 2016)

Query-Directed Probing LSH for Cosine Similarity. - Shengyingjie Liu; Jianwen Sun; Zhi Liu 011; Xian Peng; Sanya Liu (ICNCC, 2016)

Sentiment recognition of online course reviews using multi-swarm optimization-based selected features. - Zhi Liu 011; Sanya Liu; Lin Liu; Jianwen Sun; Xian Peng; Tai Wang (Neurocomputing, 2016)

Mining Learning Behavioral Patterns of Students by Sequence Analysis in Cloud Classroom. - Sanya Liu; Zhenfan Hu; Xian Peng; Zhi Liu 011; Hercy N. H. Cheng; Jianwen Sun (Int. J. Distance Educ. Technol., 2017)

Mining Individual Learning Topics in Course Reviews Based on Author Topic Model. - Sanya Liu; Cheng Ni; Zhi Liu 011; Xian Peng; Hercy N. H. Cheng (Int. J. Distance Educ. Technol., 2017)

Discovering the Two-Step Lag Behavioral Patterns of Learners in the College SPOC Platform. - Zhi Liu 011; Hercy N. H. Cheng; Sanya Liu; Jianwen Sun (Int. J. Inf. Commun. Technol. Educ., 2017)

Unfolding online learning behavioral patterns and their temporal changes of college students in SPOCs. - Hercy N. H. Cheng; Zhi Liu 011; Jianwen Sun; Sanya Liu; Zongkai Yang (Interact. Learn. Environ., 2017)

Social Network Characteristics of Learners in a Course Forum and Their Relationship to Learning Outcomes. - Zhi Liu 011; Lingyun Kang; Monika Domanska; Sannyuya Liu; Jianwen Sun; Changli Fang (CSEDU (1), 2018)

I know who you are: Deanonymization using Facebook Likes. - Sylvio Rüdian; Niels Pinkwart; Zhi Liu 011 (GI-Jahrestagung (Workshops), 2018)

An Emotion Oriented Topic Modeling Approach to Discover What Students are Concerned about in Course Forums. - Zhi Liu 011; Tai Wang; Niels Pinkwart; Sannyuya Liu; Lingyun Kang (ICALT, 2018)

Characterizing Concept Conveying in Interactions between MOOC Students and Assistants. - Tai Wang; Zhi Liu 011; Xiao-Xiao Wu; Yun Tang; Xicheng Peng; Sanya Liu (TALE, 2018)

Investigating Relationship Between Discourse Behavioral Patterns and Academic Achievements of Students in SPOC Discussion Forum. - Zhi Liu 011; Wenjing Zhang; Hercy N. H. Cheng; Jianwen Sun; Sannyuya Liu (Int. J. Distance Educ. Technol., 2018)

Effects of Proactive Personality and Social Centrality on Learning Performance in SPOCs. - Sannyuya Liu; Huanyou Chai; Zhi Liu 011; Niels Pinkwart; Xue Han; Tianhui Hu (CSEDU (2), 2019)

Temporal emotion-aspect modeling for discovering what students are concerned about in online course forums. - Zhi Liu 011; Chongyang Yang; Sylvio Rüdian; Sannyuya Liu; Liang Zhao 016; Tai Wang (Interact. Learn. Environ., 2019)

Investigating the Differences of Student Interactions between Behavior- and Content-based Networks in Online Discussions. - Tianhui Hu; Huanyou Chai; Sannyuya Liu; Qian Zhang; Guanxian Yi; Zhi Liu 011; Zhu Su (CSEDU (2), 2020)

Investigating the Relationship between Learners' Cognitive Participation and Learning Outcome in Asynchronous Online Discussion Forums. - Zhi Liu 011; Shiqi Liu 003; Cuishuang Zhang; Zhu Su; Tianhui Hu; Sannyuya Liu (CSEDU (2), 2020)

Investigating the Relationship among Students' Interest, Flow and Their Learning Outcomes in a Blended Learning Asynchronous Forum. - Shanyu Tan; Zhi Liu 011; Shiqi Liu 003; Zhu Su; Huanyou Chai; Sannyuya Liu (CSEDU (2), 2020)

Do College Students Adapt to Personal Learning Environment (PLE)? A Single-Group Study. - Changsheng Chen; Xiangzeng Meng; Junxiao Liu; Zhi Liu 011 (BDTA/WiCON, 2020)

Evolution features and behavior characters of friendship networks on campus life. - Zongkai Yang; Zhu Su; Sannyuya Liu; Zhi Liu 011; Wenxiang Ke; Liang Zhao 016 (Expert Syst. Appl., 2020)

Modeling Temporal Association of Cognition-Topic in MOOC Discussion to Track Learners' Cognitive Engagement Dynamics. - Zhi Liu 011; Rui Mu; Shiqi Liu 003; Xian Peng; Sannyuya Liu (L@S, 2021)

Exploring Students' Flow Level, Social Centrality, and Academic Achievement in a Blended Course. - Zhi Liu 011; Shanyu Tan; Liang Zhao 016; Xian Peng; Xi Kong (TALE, 2021)

Automated detection of emotional and cognitive engagement in MOOC discussions to predict learning achievement. - Sannyuya Liu; Shiqi Liu 003; Zhi Liu 011; Xian Peng; Zongkai Yang (Comput. Educ., 2022)

Looking at MOOC discussion data to uncover the relationship between discussion pacings, learners' cognitive presence and learning achievements. - Zhi Liu 011; Xi Kong; Sannyuya Liu; Zongkai Yang; Cuishuang Zhang (Educ. Inf. Technol., 2022)

Dual-feature-embeddings-based semi-supervised learning for cognitive engagement classification in online course discussions. - Zhi Liu 011; Weizheng Kong; Xian Peng; Zongkai Yang; Sannyuya Liu; Shiqi Liu 003; Chaodong Wen (Knowl. Based Syst., 2023)

Image co-segmentation based on pyramid features cross-correlation network. - Jia Chen; Yasong Chen; Weihao Li; Zhi Liu 011; Sannyuya Liu; Zongkai Yang (Sci. China Inf. Sci., 2023)

Computer-supported collaborative concept mapping: the impact of students' perceptions of collaboration on their knowledge understanding and behavioral patterns. - Sannyuya Liu; Lingyun Kang; Zhi Liu 011; Jing Fang; Zongkai Yang; Jianwen Sun; Meiyi Wang; Mengwei Hu (Interact. Learn. Environ., 2023)

MOOC-BERT: Automatically Identifying Learner Cognitive Presence From MOOC Discussion Data. - Zhi Liu 011; Xi Kong; Hao Chen; Sannyuya Liu; Zongkai Yang (IEEE Trans. Learn. Technol., 2023)

Modeling temporal cognitive topic to uncover learners' concerns under different cognitive engagement patterns. - Zhi Liu 011; Rui Mu; Zongkai Yang; Xian Peng; Sannyuya Liu; Jia Chen (Interact. Learn. Environ., 2023)

Exploring the relationships between students' network characteristics, discussion topics and learning outcomes in a course discussion forum. - Sannyuya Liu; Lingyun Kang; Zhi Liu 011; Liang Zhao 016; Zongkai Yang; Zhu Su (J. Comput. High. Educ., 2023)

Evaluating the Design Features of an Intelligent Tutoring System for Advanced Mathematics Learning. - Ying Fang; Bo He; Zhi Liu 011; Sannyuya Liu; Zhonghua Yan; Jianwen Sun (AIED (1), 2024)

Profiling students' learning engagement in MOOC discussions to identify learning achievement: An automated configurational approach. - Zhi Liu 011; Qianhui Tang; Fan Ouyang; Taotao Long; Sannyuya Liu (Comput. Educ., 2024)

Annotation Guidelines-Based Knowledge Augmentation: Towards Enhancing Large Language Models for Educational Text Classification. - Shiqi Liu 003; Sannyuya Liu; Lele Sha; Zijie Zeng; Dragan Gasevic; Zhi Liu 011 (CoRR, 2024)

CLIP-SCGI: Synthesized Caption-Guided Inversion for Person Re-Identification. - Qianru Han; Xinwei He 001; Zhi Liu 011; Sannyuya Liu; Ying Zhang; Jinhai Xiang (CoRR, 2024)

Automated Multimode Teaching Behavior Analysis: A Pipeline-Based Event Segmentation and Description. - Qiuyu Zheng; Zengzhao Chen; Mengke Wang; Yawen Shi; Shaohui Chen; Zhi Liu 011 (IEEE Trans. Learn. Technol., 2024)

Weighted Heterogeneous Graph-Based Three-View Contrastive Learning for Knowledge Tracing in Personalized e-Learning Systems. - Jianwen Sun; Shangheng Du; Zhi Liu 011; Fenghua Yu; Sannyuya Liu; Xiaoxuan Shen (IEEE Trans. Consumer Electron., 2024)

SegRewardGraph: unsupervised teaching video story segmentation method based on subtitle length-rewarding strategy and semantic relatedness graphs. - Zhi Liu 011; Hao Chen; Xi Kong; Chaodong Wen; Jia Chen; Sannyuya Liu; Zongkai Yang (Multim. Tools Appl., 2024)

Emotion-Semantic-Aware Dual Contrastive Learning for Epistemic Emotion Identification of Learner-Generated Reviews in MOOCs. - Zhi Liu 011; Chaodong Wen; Zhu Su; Sannyuya Liu; Jianwen Sun; Weizheng Kong; Zongkai Yang (IEEE Trans. Neural Networks Learn. Syst., 2024)

Dual-view cross attention enhanced semi-supervised learning method for discourse cognitive engagement classification in online course discussions. - Shiqi Liu 003; Weizheng Kong; Zhi Liu 011; Jianwen Sun; Sannyuya Liu; Dragan Gasevic (Expert Syst. Appl., 2025)

Exploratory study of an AI-supported discussion representational tool for online collaborative learning in a Chinese university. - Xi Kong; Zhi Liu 011; Changsheng Chen; Sannyuya Liu; Zhenguo Xu; Qianhui Tang (Internet High. Educ., 2025)

Triple contrastive learning representation boosting for supervised multiclass tasks. - Xianshuai Li; Zhi Liu 011; Sannyuya Liu (Inf. Process. Manag., 2025)

Annotation Guideline-Based Knowledge Augmentation: Toward Enhancing Large Language Models for Educational Text Classification. - Shiqi Liu 003; Sannyuya Liu; Lele Sha; Zijie Zeng; Dragan Gasevic; Zhi Liu 011 (IEEE Trans. Learn. Technol., 2025)

Investigating the relationships among peer moderation, cognitive engagement, and learning achievement in online discussion forums. - Mingrui Hao; Zhi Liu 011; Yanshen Liu; Qian Wan 007; Jia Chen; Jiangbo Shu; Yi Liu; Linghan Mei (Interact. Learn. Environ., 2025)

Academic stress detection based on multisource data: a systematic review from 2012 to 2024. - Sannyuya Liu; Yunhan Zhang; Liang Zhao 016; Zhi Liu 011 (Interact. Learn. Environ., 2025)

Graph Contrastive Learning via Hierarchical Multiview Enhancement for Recommendation. - Zhi Liu 011; Hengjing Xiang; Ruxia Liang; Jinhai Xiang; Chaodong Wen; Sannyuya Liu; Jianwen Sun (IEEE Trans. Ind. Informatics, 2025)

Hypergraph Convolutional Networks for Course Recommendation in MOOCs. - Zhu Su; Yafeng Li; Qing Li 045; Zhonghua Yan; Longfeng Zhao; Zhi Liu 011; Jianwen Sun; Sannyuya Liu (IEEE Trans. Knowl. Data Eng., 2025)