Search Results for author: Tiffany Barnes

Found 12 papers, 1 papers with code

Bridging Declarative, Procedural, and Conditional Metacognitive Knowledge Gap Using Deep Reinforcement Learning

no code implementations23 Apr 2023 Mark Abdelshiheed, John Wesley Hostetter, Tiffany Barnes, Min Chi

This work leverages Deep Reinforcement Learning (DRL) in providing adaptive metacognitive interventions to bridge the gap between the three knowledge types and prepare students for future learning across Intelligent Tutoring Systems (ITSs).

reinforcement-learning

Mixing Backward- with Forward-Chaining for Metacognitive Skill Acquisition and Transfer

no code implementations18 Mar 2023 Mark Abdelshiheed, John Wesley Hostetter, Xi Yang, Tiffany Barnes, Min Chi

In this work, students were trained on a logic tutor that supports a default forward-chaining (FC) and a backward-chaining (BC) strategy.

The Power of Nudging: Exploring Three Interventions for Metacognitive Skills Instruction across Intelligent Tutoring Systems

no code implementations18 Mar 2023 Mark Abdelshiheed, John Wesley Hostetter, Preya Shabrina, Tiffany Barnes, Min Chi

Deductive domains are typical of many cognitive skills in that no single problem-solving strategy is always optimal for solving all problems.

Investigating the Impact of Backward Strategy Learning in a Logic Tutor: Aiding Subgoal Learning towards Improved Problem Solving

no code implementations27 Jul 2022 Preya Shabrina, Behrooz Mostafavi, Mark Abdelshiheed, Min Chi, Tiffany Barnes

Backward problem-solving strategy is closely related to the process of subgoaling, where problem solving iteratively refines the goal into a new subgoal to reduce difficulty.

Enhancing a Student Productivity Model for Adaptive Problem-Solving Assistance

no code implementations7 Jul 2022 Mehak Maniktala, Min Chi, Tiffany Barnes

In this paper, we present a novel data-driven approach to incorporate students' hint usage in predicting their need for help.

Code-DKT: A Code-based Knowledge Tracing Model for Programming Tasks

1 code implementation7 Jun 2022 Yang Shi, Min Chi, Tiffany Barnes, Thomas Price

Knowledge tracing (KT) models are a popular approach for predicting students' future performance at practice problems using their prior attempts.

Knowledge Tracing

Extending the Hint Factory for the assistance dilemma: A novel, data-driven HelpNeed Predictor for proactive problem-solving help

no code implementations8 Oct 2020 Mehak Maniktala, Christa Cody, Amy Isvik, Nicholas Lytle, Min Chi, Tiffany Barnes

A core problem in solving the assistance dilemma is the need to discover when students are unproductive so that the tutor can intervene.

Avoiding Help Avoidance: Using Interface Design Changes to Promote Unsolicited Hint Usage in an Intelligent Tutor

no code implementations28 Sep 2020 Mehak Maniktala, Christa Cody, Tiffany Barnes, Min Chi

Within intelligent tutoring systems, considerable research has investigated hints, including how to generate data-driven hints, what hint content to present, and when to provide hints for optimal learning outcomes.

Clustering

How Widely Can Prediction Models be Generalized? Performance Prediction in Blended Courses

no code implementations15 Apr 2019 Niki Gitinabard, Yiqiao Xu, Sarah Heckman, Tiffany Barnes, Collin F. Lynch

We also evaluate the models on different segments of the courses to determine how early reliable predictions can be made.

Early Prediction of Course Grades: Models and Feature Selection

no code implementations3 Dec 2018 Hengxuan Li, Collin F. Lynch, Tiffany Barnes

In this paper, we compare predictive models for students' final performance in a blended course using a set of generic features collected from the first six weeks of class.

feature selection regression

The Continuous Hint Factory - Providing Hints in Vast and Sparsely Populated Edit Distance Spaces

no code implementations22 Aug 2017 Benjamin Paaßen, Barbara Hammer, Thomas William Price, Tiffany Barnes, Sebastian Gross, Niels Pinkwart

In particular, we extend the Hint Factory by considering data of past students in all states which are similar to the student's current state and creating hints approximating the weighted average of all these reference states.

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