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**33rd International Symposium on String Processing and Information Retrieval** </div>
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**October 13-15, 2026, Hamilton, Canada** </div>
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We warmly invite researchers, practitioners, and students to participate in the 33rd International Symposium on String Processing and Information Retrieval (SPIRE 2026), to be held at McMaster University in Hamilton, Canada, from October 13 to 15, 2026. Hamilton
is located in Southern Ontario and offers convenient access to Toronto and Niagara Falls, providing attendees with opportunities to explore one of Canada's most vibrant regions. </div>
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SPIRE is an international forum for the exchange of ideas and research results in string processing, information retrieval, data structures and algorithms, computational biology, text compression, pattern matching, and related areas. Since its inception in
1993, SPIRE has established itself as a premier venue for bringing together researchers from academia and industry to discuss advances in theory, methodology, and applications. </div>
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**Keynote Speakers** </div>
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SPIRE 2026 is pleased to feature keynote talks by: </div>
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[-] Meng He, Dalhousie University, Canada: Succinct Data Structures for Distance Queries in Interval Graphs </div>
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[-] Lila Kari, University of Waterloo, Canada: Short DNA Patterns Reveal Environmental Imprints in Extremophile Genomes </div>
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[-] Tomasz Kociumaka, Max Planck Institute for Informatics, Germany: The Many Faces of Locally Consistent Parsing </div>
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**Accepted Papers** </div>
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The list of accepted papers can be found at: https://sites.google.com/view/spire-2026/accepted-papers?authuser=0</div>
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In addition to the accepted papers, SPIRE 2026 features a Best Paper Award, sponsored by Springer. </div>
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**Workshop** </div>
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SPIRE 2026 will be followed by the:</div>
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21st Workshop on Compression, Text, and Algorithms (WCTA 2026) </div>
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October 16, 2026 </div>
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WCTA 2026 is pleased to feature an invited talk by:</div>
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[-] Ian Munro, Professor Emeritus, University of Waterloo, Canada</div>
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Venue: </div>
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McMaster University </div>
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Hamilton, Ontario, Canada </div>
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**Registration** </div>
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The early registration fee (until September 7, 2026) is CAD $515 (student), CAD $645 (faculty/author/other). </div>
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The late registration fee (from September 8, 2026 to October 3, 2026) is CAD $645 (student), CAD $800 (faculty/other). </div>
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Other details, including travel, accommodation, and the conference program, are available on the conference website: https://sites.google.com/view/spire-2026/home?authuser=0</div>
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We look forward to welcoming you to Hamilton for SPIRE 2026. </div>
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SPIRE 2026 Organizing Committee </div>
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McMaster University, Canada</div>
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