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Feature Discovery in the Context of Educational Data Mining: An Inductive Approach |
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 Arnold, A., Scheines, R. & Beck, J. E. (2006). Feature discovery in the context of educational data mining: An inductive approach. Proceedings of the AAAI2006 Workshop on Educational Data Mining, Boston, MA.
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Abstract
Feature induction is used to reduce the complexity of the model search space of a Bayes network. The Bayes net is used to model student behavior in an online course. Specifically, the frequency of student self-assessments is used to predict quiz performance. By moving most of the search from the model space to the feature space, prior knowledge and bias can be introduced and the search problem constrained. |
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The Andes Physics Tutoring System: Five Years of Evaluations |
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 VanLehn, K., Lynch, C., Schulze, K., Shapiro, J., Shelby, R. (2005). The Andes physics tutoring system: Five years of evaluations. Proceedings of the 12th International Conference on Artificial Intelligence in Education. 2005.
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Abstract
Andes is a mature intelligent tutoring system that has helped hundreds of students improve their learning of university physics.
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Normal Natural Deduction Proofs (in Non-classical Logics) |
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 Sieg, W., Cittadini, S. (2005) Normal natural deduction proofs (in non-classical logics). Mechanizing Mathematical Reasoning, LNAI 2005, 169-191.
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Abstract
We provide a theoretical framework that allows the direct search for natural deduction proofs in some non-classical logics, namely, intuitionistic sentential and predicate logic, but also in the modal logic S4. The framework uses so-called intercalation calculi to build up broad search spaces from which normal proofs can be extracted, if a proof exists at all. |
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Time and Attention: Students, Sessions, and Tasks |
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Arnold, A., Scheines, R., Beck, J., and Jerome, B. (2005). Time and attention: Students and tasks. AAAI-05: Educational Data Mining, Technical Report WS-05-02 AAAI Press.
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Abstract
Students in two classes in the fall of 2004 making extensive use of online courseware were logged as they visited over 500 different “learning pages” which varied in length and in difficulty. We computed the time spent on each page by each student during each session they were logged in. We then modeled the time spent for a particular visit as a function of the page itself, the session, and the student.
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Causal Reasoning: Disseminating New Curricula with Online Courseware |
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Scheines, R. (2003). Causal reasoning: Disseminating new curricula with online courseware. American Education Research Association, Presented April 2003.
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Abstract
Online courses offer a huge opportunity for improving access and quality. Even though the digital divide is still significant, public schools, public libraries and community centers have now made access to the world wide web fairly ubiquitous. Especially in contexts in which high quality human educators are not available in sufficient numbers and are not going to become available anytime soon, the opportunity for improving access and learning outcomes is substantial.
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Virtual Laboratories and Scenes to Support Chemistry Instruction |
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 Yaron, D., Cuadros, J., Karabinos, M. (2005). Virtual laboratories and scenes to support chemistry instruction. About Invention and Impact: Building Excellence in Undergraduate STEM Education. 2005. Pages 177 - 182.
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Abstract
This chapter discusses our efforts to develop virtual laboratories and scenario-based learning activities for introductory chemistry courses.
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The Andes Physics Tutoring System: Lessons Learned. |
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VanLehn, K., Lynch, C., Schulze, K., Shapiro, J., Shelby, R. (2005). The Andes physics tutoring system: Lessons learned. International Journal of Artificial Intelligence in Education, 15 (3). 2005.
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Abstract
The Andes system demonstrates that student learning can be significantly increased by upgrading only their homework problem-solving support.
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Automated Search for Gödel's Proofs |
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Sieg, W., Field, C. (2005) Automated search for Gödel's proofs. Annals of Pure and Applied Logic, 133, 319-338.
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Abstract
We present strategies and heuristics underlying a search procedure that finds proofs for Gödel's incompleteness theorems at an abstract axiomatic level. |
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Replacing Lecture with Web-Based Course Materials |
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Scheines, R., Leinhardt, G., Smith, J., and Cho, K. (2005). Replacing lecture with web-based course materials. Journal of Educational Computing Research, 32, 1, 1-26.
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Abstract
In a series of 5 experiments several hundred students at two different universities with three different professors and six different teaching assistants took a semester long course on causal and statistical reasoning in either traditional lecture/recitation or online/recitation format. In this paper we compare the pre-post test gains of these students, we identify features of the online experience that were helpful and features that were not, and we identify student learning strategies that were effective and those that were not.
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