E. Mayweg-Paus, M. Zimmermann, N.-T. Le, and N. Pinkwart. A review of technologies for collaborative online information seeking: On the contribution of collaborative argumentation. Education and Information Technologies, 2020.

M. Bleck, N.-T. Le, and N. Pinkwart. Physiology-Aware Learning Analytic Using Pedagogical Agents. Proceedings of CrossMMLA in practice: Collecting, annotating and analyzing multimodal data across spaces co-located with 10th International Learning and Analytics Conference LAK 2020, Cyberspace, March 24, 2020, CEUR-WS.org, volume 2610, 2020.

R. Bitner, N.-T. Le, and N. Pinkwart. A Concurrent Validity Approach for EEG-Based Feature Classification Algorithms in Learning Analytics. International Conference on Computational Collective Intelligence, 2020.

N. T. Le and N. Pinkwart. The System-analytic Approach for Gifted High School Students to Develop Computational Thinking. Proceedings of the International Conference on Computational Thinking Education, pages 2-7, 2019.

N. T. Le, A. Shabas, and N. Pinkwart. A Question Generation Framework for Teachers. Artificial Intelligence in Education, Springer International Publishing, pages 182-186, 2018.

N. T. Le, J. Masche, and N. Pinkwart. From ELIZA to modern Chatbots and Dialogue Systems - The Historical Development of Conversational Software: Classification, Technology and Application Domain. Hello, I'm Eliza, Projekt, 2018.

L. Wartschinski, N. T. Le, and N. Pinkwart. A Conversational Agent for the Improvement of Human Reasoning Skills. Bildungsräume 2017, Gesellschaft für Informatik, Bonn, pages 249-260, 2017.

T. Barnes, K. Boyer, S. I.-H. Hsiao, N. T. Le, and S. Sosnovsky. (Eds.). International Journal of Artificial Intelligence in Education, Special Issue on AI-supported Education for Computer Science, Springer Verlag, volume 27, issue 1, 2017.

J. Masche and N. T. Le. A Review of Technologies for Conversational Systems. Proceedings of the 5th International Conference on Computer Science, Applied Mathematics and Applications, ICCSAMA 2017, Springer, 2017.

N. T. Le and N. Pinkwart. K-12 Computational Thinking Education in Germany. Proceedings of the International Conference on Computational Thinking Education 2017 (CTE2017), The Education University of Hong Kong, Massachusetts Institute of Technology, and City University of Hong Kong, 2017.

N. T. Le and N. Pinkwart. Ein adaptierbares Fragengenerierungs-Framework zur Unterrichtsvorbereitung. Proceedings of DELFI Workshops 2016, ceur-ws.org, pages 149-162, 2016.

N. T. Le, J. Mason, C. Gütl, and K. Nakabayashi. Special Issue on Adaptive Educational Technology Systems. MDPI, 2016.

N. T. Le, J. Mason, C. Gütl, and K. Nakabayashi. Special Issue on Adaptive Educational Technology Systems. MDPI, 2016.

N. T. Le and N. Huse. Evaluation of the Formal Models for the Socratic Method. Proceedings of the 13th International Conference on Intelligent Tutoring Systems (ITS2016), Springer Verlag, volume 9684, 2016.

N. T. Le. Analysis Techniques for Feedback-Based Educational Systems for Programming. Advanced Computational Methods for Knowledge Engineering - Proceedings of the 4th International Conference on Computer Science, Applied Mathematics and Applications (ICCSAMA), Springer Verlag, 2016.

N. Huse and N. T. Le. The Formal Models for the Socratic Method. Advanced Computational Methods for Knowledge Engineering - Proceedings of the 4th International Conference on Computer Science, Applied Mathematics and Applications (ICCSAMA), Springer Verlag, 2016.

N. T. Le. A Classification of Adaptive Feedback of Educational Systems for Programming. Special Issue on Adaptive Educational Technology Systems, Systems, volume 4, issue 1, 2016.

N. T. Le and N. Pinkwart. Bayesian networks for competence-based student modeling. Proceedings of the 11th International Conference on Knowledge Management, ICKM, 2015.

N.-T. Le and N. T. Le. Technology Position Benchmarking Using Public Data. Proceedings of the 11th International Conference on Knowledge Management, ICKM, 2015.

N. T. Le. Deploying Intentional Forgetting in Competency Management. Proceedings of the 11th International Conference on Knowledge Management, ICKM, 2015.

N. T. Le and N. Pinkwart. Evaluation of a question generation approach using semantic web for supporting argumentation. Special Issue on Modeling, Management and Generation of Problems/Questions in Technology-Enhanced Learning - Journal Research and Practice in Technology Enhanced Learning, Asia-Pacific Society for Computers in Education, volume 10, 2015.

N. T. Le. Using Semantic Web for Generating Questions: Do Different Populations Perceive Questions Differently? Transaction on Computational Collective Intelligence, Springer, volume 17, 2015.

K. E. Boyer, N. T. Le, S. I.-H. Hsiao, S. Sosnovsky, B. D. Eugenio, and B. Chaudry. Proceedings of the Second Workshop on AI-supported Education for Computer Science (AIEDCS). 2014.

N. T. Le and N. Pinkwart. Question Generation Using WordNet. Proceedings of the 22nd International Conference on Computers in Education, Asia-Pacific Society for Computers in Education, 2014.

N. T. Le and N. Pinkwart. Towards a Classification for Programming Exercises. Proceedings of the 2nd Workshop on AI-supported Education for Computer Science at the 12th International Conference on Intelligent Tutoring, Systems (ITS), 2014.

N. T. Le, T. Kojiri, and N. Pinkwart. Automatic Question Generation for Educational Applications - The State of Art. Advanced Computational Methods for Knowledge Engineering - Proceedings of the 2nd International Conference on Computer Science, Applied Mathematics and Applications (ICCSAMA), Springer Verlag, issue 282, 2014.

M. S. Ahmad, N. T. Le, and N. Pinkwart. Requirements for Supporting School Field Trips with Learning Tools. Proceedings of 9th European Conference on Technology Enhanced Learning (EC-TEL 2014), Springer, 2014.

N. T. Le, N. P. Nguyen, K. Seta, and N. Pinkwart. Automatic Question Generation for Supporting Argumentation. Vietnam Journal of Computer Science, volume 1, issue 2, 2014.

N. T. Le, K. E. Boyer, B. Chaudhry, B. D. Eugenio, S. I.-H. Hsiao, and L. A. Sudol-DeLyser. Proceedings of the First Workshop on AI-supported Education for Computer Science (AIEDCS). 2013.

N. T. Le and N. Pinkwart. A Smart Problem Solving Environment. Human-Computer Interaction and Knowledge Discovery in Complex, Unstructured, Big Data. Proceedings of the International Conference on Human Factors in Computing \& Informatics (SouthCHI), Springer Verlag, issue 7947, 2013.

N. T. Le, S. Niebuhr, D. Drexler, and N. Pinkwart. Scaffolding Computer Supported Argumentation Processes through Mini Map Based Interaction Techniques. Proceedings of the 15th International Conference on Human-Computer Interaction (HCII), Springer Verlag, issue 8015, 2013.

N. T. Le, K. Boyer, B. Chaudry, B. Eugenio, S. Hsiao, and L. Sudol-DeLyser. Proceedings of the 16th International Conference on Artificial Intelligence in Education (AIED). Springer Verlag, issue 7926, 2013.

N. T. Le and N. Pinkwart. A Comparison between a Communication-based and a Data Mining-based Learning Approach For Agents. International Journal on Intelligent Decision Technologies, volume 7, issue 3, 2013.

N. T. Le, F. Loll, and N. Pinkwart. Operationalizing the Continuum between Well-Defined and Ill-Defined Problems for Educational Technology. IEEE Journal Transactions on Learning Technologies, volume 6, issue 3, 2013.

N. T. Le, S. Strickroth, S. Gross, and N. Pinkwart. A Review of AI-Supported Tutoring Approaches for Learning Programming. Advanced Computational Methods for Knowledge Engineering - Proceedings of the 1st International Conference on Computer Science, Applied Mathematics and Applications (ICCSAMA), Springer Verlag, issue 479, 2013.

S. Gross, S. Strickroth, N. Pinkwart, and N. T. Le. Towards Deeper Understanding of Syntactic Concepts in Programming. Workshops Proceedings of the 16th International Conference on Artificial Intelligence in Education Part 9: The First Workshop on AI-supported Education for Computer Science (AIEDCS), CEUR-WS, 2013.

T. Do, T. Krejczinger, M. Laclavik, N. T. Le, M. Maleszka, G. Nguyen, and N. T. Nguyen. An Application of Computational Collective Intelligence to Governance and Policy Modelling. Advanced Computational Methods for Knowledge Engineering - Proceedings of the 1st International Conference on Computer Science, Applied Mathematics and Applications (ICCSAMA), Springer Verlag, issue 479, 2013.

J. Schramm, S. Strickroth, N. T. Le, and N. Pinkwart. Teaching UML Skills to Novice Programmers Using a Sample Solution Based Intelligent Tutoring System. Proceedings of the 25th International Conference of the Florida Artificial Intelligence Research Society (FLAIRS), AAAI, 2012.

N. T. Le and N. Pinkwart. Strategy-Based Learning through Communication with Humans. Proceedings of the 6th International KES Conference on Agents and Multi-agent Systems - Technologies and Applications (KES-AMSTA), Springer Verlag, issue 7327, 2012.

N. T. Le and N. Pinkwart. Can Soft Computing Techniques Enhance the Error Diagnosis Accuracy for Intelligent Tutors? Proceedings of the 11th International Conference on Intelligent Tutoring Systems (ITS), Springer Verlag, issue 7315, 2012.

N. T. Le, L. Märtin, C. Mumme, and N. Pinkwart. Communication-free detection of resource conflicts in multi-agent-based cyber-physical systems. Proceedings of the 6th IEEE Digital Ecosystems and Technologies Conference (DEST), IEEE Computer Society Press, 2012.

N. T. Le and N. Pinkwart. INCOM: A Web-based Homework Coaching System For Logic Programming. Proceedings of the IADIS International Conference on Cognition and Exploratory Learning in Digital Age (CELDA), International Association for Development of the Information Society, 2011.

N. T. Le and N. Pinkwart. Adding Weights to Constraints in Intelligent Tutoring Systems: Does it Improve the Error Diagnosis? Proceedings of the 6th European Conference On Technology Enhanced Learning (ECTEL), Springer Verlag, issue 6964, 2011.

N. T. Le and N. Pinkwart. Enhancing The Error Diagnosis Capability For Constraint-based Tutoring Systems. Proceedings of the 15th International Conference on Artificial Intelligence in Education (AIED), Springer Verlag, issue 6738, 2011.

N. T. Le, L. Märtin, and N. Pinkwart. Learning Capabilities of Agents in Social Systems. Proceedings of the Workshop on Issues and Challenges in Social Computing at the 12th IEEE International Conference on Information Reuse and Integration (IRI), IEEE Systems, Man, and Cybernetics Society, 2011.

M. Huhn, J. Müller, J. Görmer, G. Homoceanu, N. T. Le, L. Märtin, C. Mumme, C. Schulz, N. Pinkwart, and C. Müller-Schloer. Autonomous Agents in Organized Localities Regulated by Institutions. Proceedings of the 5th IEEE Digital Ecosystems and Technologies Conference (DEST), IEEE Computer Society Press, 2011.

N. T. Le and N. Pinkwart. Analysis of Learning Curves for Weighted Constraint-Based Tutoring Systems. Proceedings of the IADIS International Conference on Cognition and Exploratory Learning in Digital Age (CELDA), International Association for Development of the Information Society, 2010.

N. T. Le, W. Menzel, and N. Pinkwart. Considering Ill-Definedness Of Problem Tasks Under The Aspect Of Solution Space. Proceedings of the 23st International Conference of the Florida Artificial Intelligence Research Society (FLAIRS), AAAI, 2010.

N. T. Le, W. Menzel, and N. Pinkwart. Evaluation of a Constraint-Based Homework Assistance System for Logic Programming. Proceedings of the 17th International Conference on Computers in Education (ICCE), Asia-Pacific Society for Computers in Education, 2009.