ŠPATS, Gatis; BIRZNIECE, Ilze. Opinion Mining in Latvian Text Using Semantic Polarity Analysis and Machine Learning Approach. Complex Systems Informatics and Modeling Quarterly, Riga, Latvia, n. 7, p. 51–59, 2016. DOI: 10.7250/csimq.2016-7.03. Disponível em: https://csimq-journals.rtu.lv/csimq/article/view/csimq.2016-7.03.. Acesso em: 7 mar. 2026.