Clustering Pardos, Z.A., Trivedi, S., Heffernan, N. T., Sarkozy, G. (accepted) Clustered Knowledge Tracing. To appear in the Proceedings of the 11th International Conference on Intelligent Tutoring Systems. Crete, Greece. 2012 Trivedi, S. Pardos, Z., Sarkozy, G. & Heffernan, N.T. (accepted) Co-Clustering by Bipartite Spectral Graph Partitioning for Out-Of-Tutor Prediction. To appear in Proceedings of the 5th International Conference on Educational Data Mining. Crete, Greece. 2012 Trivedi, S., Pardos, Z. & Heffernan, N. (2011) Clustering Students to Generate an Ensemble to Improve Standard Test Score Predictions In Biswas et al (Eds) Proceedings of the 15 th bi-annual Artificial Intelligence in Education Conference. Springer. LNAI 6738, Pages. 328–336. Trivedi, S., Pardos, Z., Sarkozy, G. & Heffernan, N. (2011) Spectral Clustering in Educational Data Mining. In Pechenizkiy, M., Calders, T., Conati, C., Ventura, S., Romero , C., and Stamper, J. (Eds.) Proceedings of the 4th International Conference on Educational Data Mining. Pages 129-138. Trivedi S, Pardos Z. A., Heffernan N. T., (under review) The Utility of Clustering in Prediction Tasks. IEEE Transactions on Systems, Man and Cybernetics, Part B. *WPI research award Trivedi, S. Pardos, Z., Sarkozy, G. & Heffernan, N. T. (under review) Out of Sample Extensions to Spectral Clustering. Springer Journal on Statistics and Computing. *WPI research award Knowledge Representation Karlovcec, M., Cardova-Sanchez, M., Pardos, Z.A. (accepted) Knowledge Component Suggestion for Untagged Content in an Intelligent Tutoring System. To appear in Proceedings of the 11th International Conference on Intelligent Tutoring Systems. Crete, Greece. 2012 Pardos, Z. A., Heffernan, N. T., Anderson, B., Heffernan, C. (2010) Using Fine-Grained Skill Models to Fit Student Performance with Bayesian Networks. In C. Romero, S. Ventura, S. R. Viola, M. Pechenizkiy and R. S. J. Baker (Eds.) Handbook of Educational Data Mining. CRC Press, pp. 417- 426. Pardos, Z. A., Beck, J., Ruiz, C. & Heffernan, N. T. (2008). The Composition Effect: Conjunctive or Compensatory? An Analysis of Multi-Skill Math Questions in ITS. In Baker, R.S.J.d., Barnes, T., Beck, J.E. (Eds.) Proceedings of the first International Conference on Educational Data Mining. Montreal, Canada. pp. 147-156. Pardos, Z. A., Heffernan, N. T., Ruiz, C. & Beck, J. (2008) Effective Skill Assessment Using Expectation Maximization in a Multi Network Temporal Bayesian Network. In Proceedings of The Young Researchers Track at the 9th International Conference on Intelligent Tutoring Systems . Montreal, Canada. Pardos, Z., Feng, M. & Heffernan, N. T. & Heffernan-Lindquist, C. (2007). Analyzing fine-grained skill models using bayesian and mixed effect methods. In Luckin & Koedinger (Eds.) Proceedings of the 13th Conference on Artificial Intelligence in Education. IOS Press. pp. 626-628 Pardos, Z. A., Heffernan, N. T., Anderson, B. & Heffernan, C. (2007). The effect of model granularity on student performance prediction using Bayesian networks. Proceedings of the 11th International Conference on User Modeling. Springer Berlin. pp. 435-439. Razzaq, L., Heffernan, N.T., Feng, M., Pardos, Z.A. (2007) Developing Fine-Grained Transfer Models in the ASSISTment System. Journal of Technology, Instruction, Cognition, and Learning, Vol. 5. Number 3. Old City Publishing, Philadelphia, PA. 2007. pp. 289-304. Student modeling individualization and prediction Pardos, Z.A., Gowda, S. M., Baker, R. S.J.D., Heffernan, N. T. (2012) The Sum is Greater than the Parts: Ensembling Models of Student Knowledge in Educational Software. In ACM's Knowledge Discovery and Datamining(KDD) Explorations, 13(2) Pardos, Z.A., Heffernan, N. T. (In Press) Using HMMs and bagged decision trees to leverage rich features of user and skill from an intelligent tutoring system dataset. Journal of Machine Learning Research W & CP. *Invited article *WPI research award *KDD Cup solution article Pardos, Z.A., Wang, Q. Y., Trivedi, S. (accepted) The real world significance of performance prediction. To appear in Proceedings of the 5th International Conference on Educational Data Mining. Crete, Greece. 2012. PUBLICATIONS (please see homepage for links to articles) – Zachary A. Pardos [ updated: 7/2012 ]