semeval2014 5 sentiment-analysis 4 aspect-based-sentiment-analysis 3 attention 2 bert 2 word2vec 2 lstm 2 nlp 2 pytorch 2 sapienza-university 2 tensorflow 2 semeval2016 2 bilstm-crf 2 pytorch-lightning 1 crf 1 python 1 machine-learning 1 glove-embeddings 1 multitask-learning 1 glove 1 bert-embeddings 1 attention-mechanism 1 transformer 1 absa 1 sentiment-lexicons 1 aspect-extraction 1 cnn 1 cnn-crf 1 sequence-labeling 1 embeddings-word2vec 1 natural-language-processing 1 natural-language-understanding 1 relation-classification 1 semeval 1 semeval-2018 1 sentence-classification 1 aspect-sentiment 1 bidirectional-lstm 1 deep-learning 1 lstm-neural-networks 1 semeval2015 1 sentiment-embeddings 1 sentiment-extraction 1