Migration Sentiment Analysis Dataset from Portuguese Political Manifestos (2011, 2015, 2019)

This dataset contains a collection of migration-related sentences extracted from Portuguese political party manifestos from the 2011, 2015, and 2019 legislative elections. Each entry includes the original sentence in Portuguese, sentiment analysis scores (positive, negative, and neutral probabilities), and the migration-related term that appears in the sentence. The sentiment analysis was performed using a multilingual BERT model trained for sentiment classification.

The dataset was created as part of a research project examining how political discourse around migration has evolved in Portugal's changing political landscape, particularly with the emergence of new parties. This resource supports computational analysis of political communication regarding migration issues in Portugal.