Abstract
The metric space model is a popular and extensible model for indexing data for fast similarity search. However, there is often need for broader concepts of similarities (beyond the metric space model) while these cannot directly benefit from metric indexing. This paper focuses on approximate search in semi-metric spaces using a genetic variant of the TriGen algorithm. The original TriGen algorithm generates metric modifications of semi-metric distance functions, thus allowing metric indexes to index non-metric models. However, “analytic” modifications provided by TriGen are not stable in predicting the retrieval error. In our approach, the genetic variant of TriGen – the TriGenGA – uses genetically learned semi-metric modifiers (piecewise linear functions) that lead to better estimates of the retrieval error. Additionally, the TriGenGA modifiers result in better overall performance than original TriGen modifiers.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Bernhauer, D., Skopal, T.: Approximate search in dissimilarity spaces using GA. In: GECCO, pp. 279–280. ACM (2019)
Chávez, E., Navarro, G., Baeza-Yates, R., Marroquín, J.L.: Searching in metric spaces. ACM Comput. Surv. 33(3), 273–321 (2001)
Figueroa, K., Navarro, G., Chávez, E.: Metric spaces library (2007). http://www.sisap.org/Metric_Space_Library.html
Mico, L., Oncina, J., Vidal, E.: A new version of the nearest-neighbour approximating and eliminating search algorithm (AESA) with linear preprocessing time and memory requirements. Pattern Recogn. Lett. 15, 9–17 (1994)
Skopal, T.: Unified framework for fast exact and approximate search in dissimilarity spaces. ACM Trans. Database Syst. 32(4), 29 (2007)
Skopal, T., Bustos, B.: On nonmetric similarity search problems in complex domains. ACM Comput. Surv. 43(4), 34:1–34:50 (2011)
Zezula, P., Amato, G., Dohnal, V., Batko, M.: Similarity Search: The Metric Space Approach. Springer, New York (2005). https://doi.org/10.1007/0-387-29151-2
Acknowledgments
This research has been supported in part by the Czech Science Foundation (GAČR) project Nr. 17-22224S.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Switzerland AG
About this paper
Cite this paper
Bernhauer, D., Skopal, T. (2019). Non-metric Similarity Search Using Genetic TriGen. In: Amato, G., Gennaro, C., Oria, V., Radovanović , M. (eds) Similarity Search and Applications. SISAP 2019. Lecture Notes in Computer Science(), vol 11807. Springer, Cham. https://doi.org/10.1007/978-3-030-32047-8_8
Download citation
DOI: https://doi.org/10.1007/978-3-030-32047-8_8
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-32046-1
Online ISBN: 978-3-030-32047-8
eBook Packages: Computer ScienceComputer Science (R0)