A Study on Query Transfer Using Different Two Skip Graphs for Searching Spatially-Autocorrelated Data
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- Yuuki Fujita
- Wakayama University
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- Akihiro Fujimoto
- Wakayama University
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- Hideki Tode
- Osaka Prefecture University
抄録
With the increase of IoT devices, P2P-based IoT platforms have been attracting attention because of their capabilities of building and maintaining their networks autonomously in a decentralized way. In particular, Skip Graph, which has a low network rebuilding cost and allows range search, is suitable for the platform. However, when data observed at geographically close points have similar values (i.e. when data have strong spatial autocorrelation), existing types of Skip Graph degrade their search performances. In this paper, we propose a query transfer method that enables efficient search even for spatially autocorrelated data by using two-types of Skip Graph depending on the key-distance to the target key. Simulation results demonstrate that the proposed method can reduce the query transfer distance compared to the existing method even for spatially autocorrelated data.
収録刊行物
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- IEICE Proceeding Series
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IEICE Proceeding Series 63 E2-5-, 2020-12-02
The Institute of Electronics, Information and Communication Engineers
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詳細情報 詳細情報について
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- CRID
- 1390287673853899008
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- NII論文ID
- 230000012391
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- ISSN
- 21885079
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可