Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Sentiment Analysis Techniques Applied to Raw-Text Data from a CSQ-8 Questionnaire About Mindfulness in Times of Covid-19 to Improve Strategy Generation

Version 1 : Received: 1 June 2021 / Approved: 2 June 2021 / Online: 2 June 2021 (08:40:48 CEST)

A peer-reviewed article of this Preprint also exists.

Jojoa Acosta, M.; Castillo-Sánchez, G.; Garcia-Zapirain, B.; de la Torre Díez, I.; Franco-Martín, M. Sentiment Analysis Techniques Applied to Raw-Text Data from a Csq-8 Questionnaire about Mindfulness in Times of COVID-19 to Improve Strategy Generation. Int. J. Environ. Res. Public Health 2021, 18, 6408. Jojoa Acosta, M.; Castillo-Sánchez, G.; Garcia-Zapirain, B.; de la Torre Díez, I.; Franco-Martín, M. Sentiment Analysis Techniques Applied to Raw-Text Data from a Csq-8 Questionnaire about Mindfulness in Times of COVID-19 to Improve Strategy Generation. Int. J. Environ. Res. Public Health 2021, 18, 6408.

Journal reference: Int. J. Environ. Res. Public Health 2021, 18, 6408
DOI: 10.3390/ijerph18126408

Abstract

The aim of this study was to build a tool to analyze, using artificial intelligence, the sentiment perception of users who answered two questions from the CSQ – 8 questionnaires with raw Spanish free-text. Their responses are related to mindfulness, which is a novel technique used to control stress and anxiety caused by different factors in daily life. As such, we proposed an online course where this method was applied in order to improve the quality of life of health care professionals in COVID 19 pandemic times. We also carried out an evaluation of the satis-faction level of the participants involved, with a view to establishing strategies to improve fu-ture experiences. To automatically perform this task, we used Natural Language Processing (NLP) models such as swivel embedding, neural networks and transfer learning, so as to classify the inputs into the following 3 categories: negative, neutral and positive. Due to the lim-ited amount of data available - 86 registers for the first and 68 for the second - transfer learning techniques were required. The length of the text had no limit from the user’s standpoint, and our approach attained a maximum accuracy of 93.02 % and 90.53 % respectively based on ground truth labeled by 3 experts. Finally, we proposed a complementary analysis, using com-puter graphic text representation based on word frequency, to help researchers identify relevant information about the opinions with an objective approach to sentiment. The main conclusion drawn from this work is that the application of NLP techniques in small amounts of data using transfer learning is able to obtain enough accuracy in sentiment analysis and text classification stages

Subject Areas

Mindfulness; stress; COVID-1; CSQ-8; Natural Language Processing; Deep Learning; Embedding; IMDB; Swivel; Neural Networks.

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