This book constitutes the refereed proceedings of the 11th International Conference on
Similarity Search and Applications SISAP 2018 held in Lima Peru in October 2018. The 16
full papers presented together with 3 short papers and 1 demonstration paper were carefully
reviewed and selected from 31 submissions. The papers deal with issues surrounding the theory
design analysis practice and application of content-based and feature-based similarity
search. They are organized in the following topical sections: metric search visual search
nearest neighbor queries clustering and outlier detection graphs and applications and shared
session SISAP and SPIRE.
