Abstract
Nearest neighbor problem has special considerations among database researchers. In many cases of querying, users want to see returned results that contain database objects similar to a given query object, and especially these returned results are ranked according to their similarity to the query object. In this paper, we introduce two adapted algorithms to the SH-tree [KKW2001] from the state-of-the-art of corresponding research results for efficiently processing the nearest neighbor problem in spatial databases. We do intensive performance tests on synthetic data sets, which dimension number varies from 2 to 64, as well as on real data set. Our experimental results show that the SH-tree with these adapted algorithms totally outperforms the search performance of the SR-tree in both IO-cost and CPU-time when processing the k-nearest neighbor queries. This result also confirms our theory analyses in [KKW2001]: the SH-tree can efficiently scale to high dimensional spatial databases.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Third International Conference on Information and Integration and Web-based Applications and Services |
| Pages | 425-435 |
| Number of pages | 11 |
| Publication status | Published - Sept 2001 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 9 Industry, Innovation, and Infrastructure
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SDG 16 Peace, Justice and Strong Institutions
Fields of science
- 102001 Artificial intelligence
- 102006 Computer supported cooperative work (CSCW)
- 102010 Database systems
- 102014 Information design
- 102015 Information systems
- 102016 IT security
- 102028 Knowledge engineering
- 102019 Machine learning
- 102022 Software development
- 102025 Distributed systems
- 502007 E-commerce
- 505002 Data protection
- 506002 E-government
- 509018 Knowledge management
- 202007 Computer integrated manufacturing (CIM)
- 102033 Data mining
- 102035 Data science
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