An Effective Schema Mapping Model for Decentralized Network

DOI

10.2991/emcs-15.2015.112How to use a DOI?

Keywords

Schema mapping; Decentralized network; PDMS; Uncertainty; Query log

Abstract

Schema heterogeneity among individual peers is an important issue in PDMS (Peer Data Management System). Schema mapping is a key technology to find the semantic matching relationship between schemas, and it plays an important role in PDMS. In this paper, we address the problem of schema mapping in PDMS, a typical decentralized network. Aiming at the limitations of previous methods, we propose a schema mapping model based on peer interest, schema structure information and query log, and we also considers the uncertainty of schema mapping during query propagation among peers. In our model, the peers with same interest organize a community and the schema mapping is handled in the interest community. We propose a query processing strategy in which the uncertainty of schema mapping in taken into account. In order to supplement the matching and reasoning, we mine the query log to discover the relationship between schema elements and refine the schema mapping further. Experimental results show that our method is feasible and effective for schema mapping in decentralized network.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhenhua Wang
AU  - Derong Shen
AU  - Ge Yu
PY  - 2015/01
DA  - 2015/01
TI  - An Effective Schema Mapping Model for Decentralized Network
BT  - Proceedings of the International Conference on Education, Management, Commerce and Society
PB  - Atlantis Press
SP  - 547
EP  - 554
SN  - 2352-5398
UR  - https://doi.org/10.2991/emcs-15.2015.112
DO  - 10.2991/emcs-15.2015.112
ID  - Wang2015/01
ER  -