A peer-to-peer approach to Geospatial Web Services discovery

Ma  Xiujun; Li  Gang; Xie  Kunqing; Shuai  Meng

1st International ICST/Create-Net Workshop on Peer-to-Peer Information Management

Research Article

A peer-to-peer approach to Geospatial Web Services discovery

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1145/1146847.1146901,
    author={Ma  Xiujun and Li  Gang and Xie  Kunqing  and Shuai  Meng},
    title={A peer-to-peer approach to Geospatial Web Services discovery},
    proceedings={1st International ICST/Create-Net Workshop on Peer-to-Peer Information Management},
    publisher={ACM},
    proceedings_a={P2PIM},
    year={2006},
    month={6},
    keywords={Geospatial Web Service Discovery; Peer-to-Peer; Peer R+ tree;Spatial Data Infrastrucure},
    doi={10.1145/1146847.1146901}
}

Ma Xiujun
Li Gang
Xie Kunqing
Shuai Meng
Year: 2006
A peer-to-peer approach to Geospatial Web Services discovery
P2PIM
ACM
DOI: 10.1145/1146847.1146901

Ma Xiujun^1,2^,*, Li Gang³^,*, Xie Kunqing ⁴^,*, Shuai Meng⁴^,*

1: Department of Intelligence Science, National Laboratory on Machine Perception,
2: Peking University, Beijing, China
3: Institute of Computing Technology, Chinese Academy of Science, Beijing, China
4: Department of Intelligence Science, Peking University, Beijing, China

*Contact email: maxiujunpku@gmail.com, ligang@ict.ac.cn, Kunqing@cis.pku.edu.cn, Shuaimeng@db.pku.edu.cn

Abstract

Geospatial Web Services are data-oriented services, which include a variety of complex data models and metadata. Discovering the appreciate services with related geospatial datasets among a large number of available ones is a key task in the Geospatial Web Services domain. This paper proposes a peer-to-peer (P2P) based approach for discovering geospatial Web Services. We characterize the geospatial Web Services profile as a set of keywords including the metadata attributes, the minimum bounding rectangle (MBR) and the QoS parameters. Differing from the keywords based P2P Web Services discovery approaches, we use the MBR information to cluster and index the services into a kind of Peer R+ tree. With the tree, a P2P system can support complex queries containing partial keywords and spatial querying. The approach has been used in the Beijing Spatial Data Infrastructure project. We implement an peer-to-peer geospatial Web Services discovery system prototype that shows our approach facilitates complex service queries that contains spatial keywords.

Keywords: Geospatial Web Service Discovery; Peer-to-Peer; Peer R+ tree;Spatial Data Infrastrucure

Published: 2006-06-01
Publisher: ACM

: http://dx.doi.org/10.1145/1146847.1146901