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Open AccessArticle

Data-Driven Interaction Review of an Ed-Tech Application

1
Department of the Computer Science, Universidad Carlos III de Madrid, 28911 Leganés, Spain
2
Smile and Learn Digital Creations, 28043 Madrid, Spain
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(8), 1910; https://doi.org/10.3390/s19081910
Received: 12 February 2019 / Revised: 18 April 2019 / Accepted: 18 April 2019 / Published: 22 April 2019
(This article belongs to the Special Issue Advanced Sensors Technology in Education)
Smile and Learn is an Ed-Tech company that runs a smart library with more that 100 applications, games and interactive stories, aimed at children aged two to 10 and their families. The platform gathers thousands of data points from the interaction with the system to subsequently offer reports and recommendations. Given the complexity of navigating all the content, the library implements a recommender system. The purpose of this paper is to evaluate two aspects of such system focused on children: the influence of the order of recommendations on user exploratory behavior, and the impact of the choice of the recommendation algorithm on engagement. The assessment, based on data collected between 15 October 2018 and 1 December 2018, required the analysis of the number of clicks performed on the recommendations depending on their ordering, and an A/B/C testing where two standard recommendation algorithms were compared with a random recommendation that served as baseline. The results suggest a direct connection between the order of the recommendation and the interest raised, and the superiority of recommendations based on popularity against other alternatives. View Full-Text
Keywords: educational technologies; recommender systems; artificial intelligence educational technologies; recommender systems; artificial intelligence
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Baldominos, A.; Quintana, D. Data-Driven Interaction Review of an Ed-Tech Application. Sensors 2019, 19, 1910.

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