Multi-agent system for Knowledge-based recommendation of Learning Objects

  • Paula Andrea Rodríguez Marín
    Departamento de Ciencias de la Computación y de la Decisión Facultad de minas - Universidad Nacional de Colombia - Sede Medellín parodriguezma[at]unal.edu.co
  • Néstor Duque
  • Demetrio Ovalle

Abstract

Learning Object (LO) is a content unit being used within virtual learning environments, which -once found and retrieved- may assist students in the teaching - learning process. Such LO search and retrieval are recently supported and enhanced by data mining techniques. In this sense, clustering can be used to find groups holding similar LOs so that from obtained groups, knowledge-based recommender systems (KRS) can recommend more adapted and relevant LOs. In particular, prior knowledge come from LOs previously selected, liked and ranked by the student to whom the recommendation will be performed. In this paper, we present a KRS for LOs, which uses a conventional clustering technique, namely K-means, aimed at finding similar LOs and delivering resources adapted to a specific student. Obtained promising results show that proposed KRS is able to both retrieve relevant LO and improve the recommendation precision.Learning Object (LO) is a content unit being used within virtual learning environments, which -once found and retrieved- may assist students in the teaching - learning process. Such LO search and retrieval are recently supported and enhanced by data mining techniques. In this sense, clustering can be used to find groups holding similar LOs so that from obtained groups, knowledge-based recommender systems (KRS) can recommend more adapted and relevant LOs. In particular, prior knowledge come from LOs previously selected, liked and ranked by the student to whom the recommendation will be performed. In this paper, we present a KRS for LOs, which uses a conventional clustering technique, namely K-means, aimed at finding similar LOs and delivering resources adapted to a specific student. Obtained promising results show that proposed KRS is able to both retrieve relevant LO and improve the recommendation precision.
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Rodríguez Marín, P. A., Duque, N., & Ovalle, D. (2015). Multi-agent system for Knowledge-based recommendation of Learning Objects. ADCAIJ: Advances in Distributed Computing and Artificial Intelligence Journal, 4(1), 80–89. https://doi.org/10.14201/ADCAIJ2015418089

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