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On-line version ISSN 1870-9044

Polibits  n.51 México Jan./Jun. 2015 

Applying the Technology Acceptance Model to Evaluation of Recommender Systems


Marcelo G. Armentano, Ingrid Christensen, and Silvia Schiaffino


ISISTAN Research Institute (CONICET/UNICEN), Tandil, Argentina. (e-mail: (,,


Manuscript received on May 5, 2015.
Accepted for publication on June 5, 2015.
Published on June 15, 2015.



In general, the study of recommender systems emphasizes the efficiency of techniques to provide accurate recommendations rather than factors influencing users' acceptance of the system; however, accuracy alone cannot account for users' satisfying experience. Bearing in mind this gap in the research, we apply the technology acceptance model (TAM) to evaluate user acceptance of a recommender system in the movies domain. Within the basic TAM model, we incorporate a new latent variable representing self-assessed user skills to use a recommender system. The experiment included 116 users who answered a satisfaction survey after using a movie recommender system. The results evince that perceived usefulness of the system has more impact than perceived ease of use to motivate acceptance of recommendations. Additionally, users' previous skills strongly influence perceived ease of use, which directly impacts on perceived usefulness of the system. These findings can assist developers of recommender systems in their attempt to maximize users' experience.

Key words: Recommender systems, evaluation, user acceptance, technology acceptance model.





This study was partially supported by research projects PIP-0181-CONICET and PICT-2011-0366 awarded by ANPCyT, Argentina.



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