On supporting containment queries in relational database management systems
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Proceedings of the twenty-first ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Storing and querying ordered XML using a relational database system
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Indexing and Querying XML Data for Regular Path Expressions
Proceedings of the 27th International Conference on Very Large Data Bases
Maintaining order in a linked list
STOC '82 Proceedings of the fourteenth annual ACM symposium on Theory of computing
A Prime Number Labeling Scheme for Dynamic Ordered XML Trees
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
ORDPATHs: insert-friendly XML node labels
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
QED: a novel quaternary encoding to completely avoid re-labeling in XML updates
Proceedings of the 14th ACM international conference on Information and knowledge management
Efficient Processing of Updates in Dynamic XML Data
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
XMark: a benchmark for XML data management
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Efficient updates in dynamic XML data: from binary string to quaternary string
The VLDB Journal — The International Journal on Very Large Data Bases
An efficient XML encoding and labeling method for query processing and updating on dynamic XML data
Journal of Systems and Software
An efficient encoding and labeling for dynamic XML data
DASFAA'07 Proceedings of the 12th international conference on Database systems for advanced applications
On an Enhancement of XML Applied for Mobile E-Commerce
Journal of Electronic Commerce in Organizations
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In order to facilitate the XML query processing, several labeling schemes have been proposed to directly determine the structural relationships between two arbitrary XML nodes without accessing the original XML documents. However, the existing XML labeling schemes have to re-label the pre-existing nodes or re-calculate the label values when a new node is inserted into the XML document during an update process. In this paper, we devise a novel encoding scheme based on the fractional number to encode the labels of the XML nodes. Moreover, we propose a mapping method to convert our proposed fractional number based encoding scheme to bit string based encoding scheme with the intention to minimize the label size and save the storage space. By applying our proposed bit string encoding scheme to the range-based labeling scheme and the prefix labeling scheme, the process of re-labeling the pre-existing nodes can be avoided when nodes are inserted as leaf nodes and sibling nodes without affecting the order of XML nodes. In addition, we propose an algorithm to control the increment of label size when new nodes are inserted frequently at a fix place of an XML tree. Experimental results show that our proposed bit string encoding scheme provides efficient support to the process of XML updating without sacrificing the query performance when it is applied to the range-based labeling schemes.