Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and Transformers

Texts related to economics and finances are characterized by the use of words and expressions whose meaning (and the sentiments they convey) substantially depend on the context. This poses a major challenge to Natural Language Processing tasks in general, and Sentiment Analysis in particular. For lo...

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Main Authors: Jose Antonio Garcia-Diaz, Francisco Garcia-Sanchez, Rafael Valencia-Garcia
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10041929/
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author Jose Antonio Garcia-Diaz
Francisco Garcia-Sanchez
Rafael Valencia-Garcia
author_facet Jose Antonio Garcia-Diaz
Francisco Garcia-Sanchez
Rafael Valencia-Garcia
author_sort Jose Antonio Garcia-Diaz
collection DOAJ
description Texts related to economics and finances are characterized by the use of words and expressions whose meaning (and the sentiments they convey) substantially depend on the context. This poses a major challenge to Natural Language Processing tasks in general, and Sentiment Analysis in particular. For low-resource languages such as Spanish, this situation becomes even more acute. Yet, the latest advancements in the field, including word embeddings and transformers, have allowed to boost the performance of Sentiment Analysis solutions. In this work we explore the impact of the combination of different feature sets in the accuracy of Sentiment Analysis in Spanish financial texts. For this, a corpus with 15,915 tweets has been compiled and manually annotated as either positive, negative, or neutral. Then, feature sets based on contextual and non-contextual embeddings along with linguistic features were evaluated both individually and combined. The best results, with a weighted F1-score of 73.15880%, were obtained with a combination of feature sets by means of knowledge integration.
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spelling doaj.art-8e86091550b649759a4d7bf83a58c5392023-02-16T00:00:19ZengIEEEIEEE Access2169-35362023-01-0111142111422410.1109/ACCESS.2023.324406510041929Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and TransformersJose Antonio Garcia-Diaz0https://orcid.org/0000-0002-3651-2660Francisco Garcia-Sanchez1https://orcid.org/0000-0003-2667-5359Rafael Valencia-Garcia2https://orcid.org/0000-0003-2457-1791Facultad de Informática, Universidad de Murcia, Campus de Espinardo, Murcia, SpainFacultad de Informática, Universidad de Murcia, Campus de Espinardo, Murcia, SpainFacultad de Informática, Universidad de Murcia, Campus de Espinardo, Murcia, SpainTexts related to economics and finances are characterized by the use of words and expressions whose meaning (and the sentiments they convey) substantially depend on the context. This poses a major challenge to Natural Language Processing tasks in general, and Sentiment Analysis in particular. For low-resource languages such as Spanish, this situation becomes even more acute. Yet, the latest advancements in the field, including word embeddings and transformers, have allowed to boost the performance of Sentiment Analysis solutions. In this work we explore the impact of the combination of different feature sets in the accuracy of Sentiment Analysis in Spanish financial texts. For this, a corpus with 15,915 tweets has been compiled and manually annotated as either positive, negative, or neutral. Then, feature sets based on contextual and non-contextual embeddings along with linguistic features were evaluated both individually and combined. The best results, with a weighted F1-score of 73.15880%, were obtained with a combination of feature sets by means of knowledge integration.https://ieeexplore.ieee.org/document/10041929/Sentiment analysisfinancialtransformersfeature engineeringdeep learning
spellingShingle Jose Antonio Garcia-Diaz
Francisco Garcia-Sanchez
Rafael Valencia-Garcia
Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and Transformers
IEEE Access
Sentiment analysis
financial
transformers
feature engineering
deep learning
title Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and Transformers
title_full Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and Transformers
title_fullStr Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and Transformers
title_full_unstemmed Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and Transformers
title_short Smart Analysis of Economics Sentiment in Spanish Based on Linguistic Features and Transformers
title_sort smart analysis of economics sentiment in spanish based on linguistic features and transformers
topic Sentiment analysis
financial
transformers
feature engineering
deep learning
url https://ieeexplore.ieee.org/document/10041929/
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AT franciscogarciasanchez smartanalysisofeconomicssentimentinspanishbasedonlinguisticfeaturesandtransformers
AT rafaelvalenciagarcia smartanalysisofeconomicssentimentinspanishbasedonlinguisticfeaturesandtransformers