AAAI Publications, The Twenty-Ninth International Flairs Conference

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Designing a Personal Assistant for Life-Long Learning (PAL3)
William R. Swartout, Benjamin D. Nye, Arno Hartholt, Adam Reilly, Arthur C. Graesser, Kurt VanLehn, Jon Wetzel, Matt Liewer, Fabrizio Morbini, Brent Morgan, Lijia Wang, Grace Benn, Milton Rosenberg

Last modified: 2016-03-30


Learners’ skills decay during gaps in instruction, since they lack the structure and motivation to continue studying. To meet this challenge, the PAL3 system was designed to accompany a learner throughout their career and mentor them to build and maintain skills through: 1) the use of an embodied pedagogical agent (Pal), 2) a persistent learning record that drives a student model which estimates forgetting, 3) an adaptive recommendation engine linking to both intelligent tutors and traditional learning resources, and 4) game-like mechanisms to promote engagement (e.g., leaderboards, effort-based point rewards, unlocking customizations). The design process for PAL3 is discussed, from the perspective of insights and revisions based on a series of formative feedback and evaluation sessions.


Lifelong learning; Intelligent Coach; Personal Assistant; Knowledge Decay; Skill Decay; Serious Games;

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