This book constitutes the refereed proceedings of the 23rd International Conference on
Applications of Natural Language to Information Systems NLDB 2018 held in Paris France in
June 2018. The 18 full papers 26 short papers and 9 poster papers presented were carefully
reviewed and selected from 99 submissions. The papers are organized in the following topical
sections: Opinion Mining and Sentiment Analysis in Social Media Semantics-Based Models and
Applications Neural Networks Based Approaches Ontology Engineering NLP Text Similarities
and Plagiarism Detection Text Classification Information Mining Recommendation Systems
Translation and Foreign Language Querying Software Requirement and Checking.