International audienceIn this article, we propose to evaluate the lexical similarity information provided by word representations against several opinion resourcesusing traditional Information Retrieval tools. Word representation have been used to build and to extend opinion resources such aslexicon, and ontology and their performance have been evaluated on sentiment analysis tasks. We question this method by measuring thecorrelation between the sentiment proximity provided by opinion resources and the semantic similarity provided by word representationsusing different correlation coefficients. We also compare the neighbors found in word representations and list of similar opinion words.Our results show that the proximity of words in state-of-the-art word representations is not very effective to build sentiment similarity
