This book constitutes the refereed proceedings of the 19th International Symposium on String Processing and Information Retrieval, SPIRE 2012, held in Cartagena de Indias, Colombia, in October 2012. The 26 full papers, 13 short papers, and 3 keynote speeches were carefully reviewed and selected from 81 submissions. The following topics are covered: fundamentals algorithms in string processing and information retrieval; SP and IR techniques as applied to areas such as computational biology, DNA sequencing, and Web mining.

This book constitutes the refereed proceedings of the 14th International Symposium on String Processing and Information Retrieval, SPIRE 2007, held in Santiago, Chile, October 29-31, 2007.

The 27 revised full papers presented were carefully reviewed and selected from 77 submissions. The papers topics span dictionary algorithms, text searching, pattern matching, text compression, text mining, natural language processing, automata based string processing, IR modelling, indexing, ranking and filtering, interface design, visualization, cross-lingual IR systems, multimedia IR, digital libraries, collaborative retrieval, Web related applications, DNA sequencing and applications in molecular biology, evolution and phylogenetics, recognition of genes and regulatory elements, sequence driven protein structure prediction, XML, SGML, information retrieval from semi-structured data, text mining and generation of structured data from text.