• A wide comparison with ablation analysis of Aspect Term Extraction methods. guideline to choose the best models for particular user needs. We analyzed 88 method combinations, model customizations (LSTM vs. BiLSTM, CRF no CRF) and pre-trained word embeddings. also evaluated results three contextual text representations (BERT, Flair, ELMo) using BiLSTM-CRF model. influence on performance extend...