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Enhancing ITS System Interface and Algorithm for Improved User Experience

This project aims to enhance an Intelligent Tutoring System (ITS) by fixing the difficulty algorithm and improving bucket distribution. The new interface design simplifies navigation with an intuitive button set and circular button design. Updates include 5 buckets for difficulty levels and user-friendly interfaces. Next steps involve publishing the updated system and refining the algorithm for new questions.

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Enhancing ITS System Interface and Algorithm for Improved User Experience

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Presentation Transcript

  1. Difficulty Team Ethan Hayes Chelsea Sanders John Payson Lijun Zhu

  2. Introduction • Goal of the project • Publishing more intelligent ITS system • Fix the difficulty algorithm and improve bucket distribution • Improved user interface presentation • Motivation • User interface had to many buttons and was difficult to understand. • Current difficulty algorithm had disproportionate distribution

  3. Pushing New Interface • 5 dummy interfaces • Switching between interfaces

  4. Skipping Algorithm

  5. Circular Button Set • An all-in-one buttons set • Intuitive button design • Integrate submit and skip function in a unity control console

  6. Original Design • Double ring structure • Submit button inside and skip buttons outside

  7. Compromise with the engineer limitation • Had difficulty adding background pictures in the cssfile for the skip buttons in the outer ring • Replaced them withtriangle buttons

  8. Fixing the difficulty algorithms • User score, User rating, Duration, Skip • Difficulty, difficulty2, dropN, dropSTD

  9. DiffNvsDiffSTD

  10. Switching Interfaces Live • (screen shots)

  11. Updated Difficulty Bar

  12. 5 Buckets

  13. Final Results • Updated difficulty bar and button interface • Updated difficulty algorithm with 5 buckets • (screen shot of final interface: ehtan)

  14. Whats Next? • Publish on ITS! • Algorithm accounts for new questions that don’t have mined data information • Making harder questions worth more

  15. Questions?

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