RT Journal Article T1 Lexicon-based sentiment analysis in texts using Formal Concept Analysis. A1 Ojeda Hernández, Manuel A1 López-Rodríguez, Domingo A1 Mora-Bonilla, Ángel K1 Emociones - Análisis K1 Análisis del discurso AB In this paper, we present a novel approach for sentiment analysis that uses Formal Concept Analysis (FCA) to create dictionaries for classification. Unlike other methods that rely on pre-defined lexicons, our approach allows for the creation of customised dictionaries that are tailored to the specific data and tasks. By using a dataset of tweets categorised into positive and negative polarity, we show that our approach achieves a better performance than other standard dictionaries. PB Elsevier YR 2023 FD 2023-02-03 LK https://hdl.handle.net/10630/29498 UL https://hdl.handle.net/10630/29498 LA spa NO Ojeda-Hernández, M., López-Rodríguez, D., & Mora, Á. (2023). Lexicon-based sentiment analysis in texts using Formal Concept Analysis. International Journal of Approximate Reasoning, 155, 104–112. NO This research is partially supported by the State Agency of Research (AEI), the Spanish Ministry of Science, Innova-tion, and Universities (MCIU), the European Social Fund (FEDER), the Junta de Andalucía (JA), and the Universidad de Málaga (UMA) through the FPU19/01467 (MCIU) internship and the research projects with reference PGC2018-095869-B-I00, TIN2017-89023-P, PID2021-127870OB-I00 (MCIU/AEI/FEDER, UE) and UMA18-FEDERJA-001 (JA/ UMA/ FEDER, UE). DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026