Lsislif: CRF and Logistic Regression for Opinion Target Extraction and Sentiment Polarity Analysis Hussam Hamdan author Patrice Bellot author Frederic Bechet author 2015-06 text Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015) Preslav Nakov editor Torsten Zesch editor Daniel Cer editor David Jurgens editor Association for Computational Linguistics Denver, Colorado conference publication hamdan-etal-2015-lsislif-crf 10.18653/v1/S15-2128 https://aclanthology.org/S15-2128/ 2015-06 753 758