Ambarish Joshi's scientific contributions

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Publication (1)

Better Data Beats Big Data
Conference Paper
  • Jul 2014
Generalizability of models of student learning is a highly desirable feature. As new students interact with educational systems, highly predictive models, tuned to increasing amounts of data from previous learners, presumably allow such systems to provide a more individualized, optimal learning path, give better feedback, and provide a more effecti...
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... Correct attempts after an initial hint are now credited (i.e., skill mastery estimates increase) like immediate correct attempts, and correct attempts after mid-level hints now leave the skill mastery estimate unchanged. In addition, MA-THia's BKT parameter estimates for each skill (used to determine the models' responsiveness to correct and incorrect answers) are now frequently set based on data-driven estimation techniques [32,39] as opposed to mostly being set according to expert judgment in earlier Cognitive Tutor versions. ...
Reference: Evaluating Gaming Detector Model Robustness Over Time
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