International Journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN: 2313-626X

Frequency: 12
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 Volume 9, Issue 5 (May 2022), Pages: 75-80

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 Original Research Paper

 Title: Research for smart contract-based problem recommendation algorithm

 Author(s): Youn-A Min *, Dong-Kyun Lim

 Affiliation(s):

 Department of Applied Software Engineering, University of Hanyang Cyber, Seoul, South Korea

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 * Corresponding Author. 

  Corresponding author's ORCID profile: https://orcid.org/0000-0003-3259-5929

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2022.05.009

 Abstract:

As a method for learners to learn independently in distance education, the need for a problem recommendation learning guide that effectively reflects a learning pattern based on learner data is increasing. In this paper, based on blockchain Ethereum smart contract technology, we analyze and present problem recommendation patterns for individual learners by filtering, collecting, and transparently managing multiple learner data that can occur in a distance education environment. In this study, various weighting factors were assigned to each learning situation. The optimal problem recommendation path is presented so that learners can solve problems based on weight-based learning factors in various learning situations. For the performance evaluation of this study, a similar learning environment was set up, and learning satisfaction, usefulness of problem recommendation guides, and learner data processing speed were analyzed. As a result of the performance evaluation, it was confirmed that the learning satisfaction improved by more than 15% compared to the existing learning environment in the proposed environment. In addition, it was confirmed that the learning data processing speed was improved by more than 17%. 

 © 2022 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Smart contract, Blockchain, Ethereum, Problem recommendation algorithm, Distance education

 Article History: Received 15 December 2021, Received in revised form 25 February 2022, Accepted 4 March 2022

 Acknowledgment 

No Acknowledgment.

 Compliance with ethical standards

 Conflict of interest: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

 Citation:

 Min YA and Lim DK (2022). Research for smart contract-based problem recommendation algorithm. International Journal of Advanced and Applied Sciences, 9(5): 75-80

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 Figures

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 Tables

 Table 1 Table 2

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