Detailed Information on Publication Record
2022
Similarity Search with the Distance Density Model
KŘENKOVÁ, Markéta, Vladimír MÍČ and Pavel ZEZULABasic information
Original name
Similarity Search with the Distance Density Model
Authors
KŘENKOVÁ, Markéta (203 Czech Republic, belonging to the institution), Vladimír MÍČ (203 Czech Republic, belonging to the institution) and Pavel ZEZULA (203 Czech Republic, guarantor, belonging to the institution)
Edition
Cham, Similarity Search and Applications: 15th International Conference, SISAP 2022, Bologna, Italy, October 5 - October 7, 2020, Proceedings, p. 118-132, 15 pp. 2022
Publisher
Springer
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10201 Computer sciences, information science, bioinformatics
Country of publisher
Switzerland
Confidentiality degree
není předmětem státního či obchodního tajemství
Publication form
printed version "print"
References:
Impact factor
Impact factor: 0.402 in 2005
RIV identification code
RIV/00216224:14330/22:00127335
Organization unit
Faculty of Informatics
ISBN
978-3-031-17848-1
ISSN
UT WoS
000874756300010
Keywords in English
Metric space similarity model;Perceived similarity;Data-dependent similarity;Distance density model;Effective and efficient similarity search
Tags
International impact, Reviewed
Změněno: 28/3/2023 12:04, RNDr. Pavel Šmerk, Ph.D.
Abstract
V originále
The metric space model of similarity has become a standard formal paradigm of generic similarity search engine implementations. However, the constraints of identity and symmetry prevent from expressing the subjectivity and dependence on the context perceived by humans. In this paper, we study the suitability of the Distance density model of similarity for searching. First, we use the Local Outlier Factor (LOF) to estimate a data density in search collections and evaluate plenty of queries using the standard geometric model and its extension respecting the densities. We let 200 people assess the search effectiveness of the two alternatives using the web interface. Encouraged by the positive effects of the Distance density model, we propose an alternative way to estimate the data densities to avoid the quadratic LOF computation complexity with respect to the dataset size. The sketches with unbalanced bits are clarified to be in correlation with LOFs, which opens a possibility for an efficient implementation of large-scale similarity search systems based on the Distance density model.
Links
EF16_019/0000822, research and development project |
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