The two-volume set LNCS 11233 and LNCS 11234 constitutes the proceedings of the 19th
International Conference on Web Information Systems Engineering WISE 2018 held in Dubai
United Arab Emirates in November 2018. The 48 full papers and 21 short papers presented were
carefully reviewed and selected from 209 submissions. The papers are organized in topical
sections on blockchain security social network and security social network microblog data
analysis graph data information extraction text mining recommender systems medical data
analysis Web services and cloud computing data stream and distributed computing data mining
techniques entity linkage and semantics Web applications and data mining applications.