Massively Multilingual Corpus of Sentiment Datasets and Multi-faceted Sentiment Classification Benchmark - Augustyniak, Lukasz; Woźniak, Szymon; Gruza, Marcin; Gramacki, Piotr; Rajda, Krzysztof; Morzy, Mikoł aj; Kajdanowicz, Tomasz (Advances in Neural Information Processing Systems, 2023)