Legal Knowledge and Information Systems, JURIX 2018: The Thirty-first Annual Conference

This presents the proceedings volume of the 31st International Conference on Legal Knowledge and Information Systems (JURIX 2018). The accepted papers have been grouped under six headings: (i) Machine Learning for the Legal Domain, a session presenting different methodologies and theoretical models applied to legislative texts and case-law (seven full papers and two short papers); (ii) Legal Reasoning and Argumentation, a session that ranges from theoretical aspects and demonstrations (three full papers and four short papers); (iii) Legal Knowledge Extraction, a session that presents natural-language processing of text for detecting terms, principles, concepts, evidence, rules, and named entities, and also speech in chatbots (two full papers and two short papers); (iv) Legal Knowledge Retrieval, a session focused on the answer-and-query approach (two full papers); (v) Legal Knowledge Modelling and Visualization, devoted to Semantic Web techniques, such as legal thesauri and ontologies (three full papers and one short paper); and (vi) Legal Blockchain, a session that has been growing in significance for several years in the workshop area, and now gains entry into the main conference (two full papers, one short paper).