Abstract
Existing XML schema mapping languages often follow the approach for the relational schema mappings to conjunctively combine the correspondences between tuples of elements. However, this approach is inconvenient to present the complex mappings which often involve the hierarchical and heterogeneous data. In this paper, we propose a new pattern-based DTD schema mapping language named LDM. The views in LDM adopt the logical as well as the structural operators of compose the patterns for matching the data elements, so as to flexibly specify the structural relationships among the elements and uniformly organize them in a logical structure. Under the support of a deductive restructuring mechanism of the logical structure, the data elements can be coherently reorganized and thus the mappings can be specified declaratively. We describe the design issues of LDM and demonstrate its features with certain typical mappings on integrating DTD schemas.
This research is supported by the NSF of China under the contracts No.61272110, No.61272275, No.61202100 and No.61202036, the Open Fund. of Shanghai Key Lab. of Intelligent Info. Processing under contract No.IIPL-2011-002, and the China Postdoctoral Science Foundation under contract No. 2014M562070.
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Li, X., Guan, Y., Liu, M., Cai, R., Zhong, M., Qian, T. (2015). LDM: A DTD Schema Mapping Language Based on Logic Patterns. In: Dong, X., Yu, X., Li, J., Sun, Y. (eds) Web-Age Information Management. WAIM 2015. Lecture Notes in Computer Science(), vol 9098. Springer, Cham. https://doi.org/10.1007/978-3-319-21042-1_62
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DOI: https://doi.org/10.1007/978-3-319-21042-1_62
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