Abstract
To facilitate the XML query processing, several kinds of labeling schemes have been proposed. Based on the labeling schemes, the ancestor-descendant and parent-child relationships in XML queries can be quickly determined without accessing the original XML file. Recently, more researches are focused on how to update the labels when nodes are inserted into the XML. However how to process the deleted labels are not discussed previously. We think that the deleted labels can be processed in two different directions: (1) reuse all the deleted labels to control the label size increasing speed and improve the query performance; (2) never reuse the deleted labels to query different versions of the XML data based on labeling schemes. In this paper, we firstly introduce our previous work, called QED, which can completely avoid the re-labeling in XML updates. Secondly based on QED we propose a new algorithm, called Reuse, which can reuse all the deleted labels to control the label size increasing speed; meanwhile the Reuse algorithm can completely avoid the re-labeling also. Thirdly to query different versions of the XML data, we propose another new algorithm, called NeverReuse, which is the only approach that never reuses any deleted labels. Extensive experimental results show that the algorithms proposed in this paper can control the label size increasing speed when reusing all the deleted labels, and is the only approach to query different versions of the XML data based on labeling schemes.
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References
Agrawal, R., Borgida, A., Jagadish, H.V.: Efficient Management of Transitive Relationships in Large Data and Knowledge Bases. In: Proc. of ACM SIGMOD, pp. 253–262 (1989)
Amagasa, T., Yoshikawa, M., Uemura, S.: QRS: A Robust Numbering Scheme for XML Documents. In: Proc. of ICDE, pp. 705–707 (2003)
Bose, S., Fegaras, L.: Data Stream Management for Historical XML Data. In: Proc. of ACM SIGMOD, pp. 239–250 (2004)
Chien, S., Tsotras, V.J., Zaniolo, C.: Efficient Management of Multiversion Documents by Object Referencing. In: Proc. of VLDB, pp. 291–300 (2001)
Chien, S.Y., Tsotras, V., Zaniolo, C., Zhang, D.: Supporting Complex Queries on Multiversion XML Documents. ACM Trans. on Office Information Systems, 1–42 (2005)
Cohen, E., Kaplan, H., Milo, T.: Labeling Dynamic XML Trees. In: Proc. of PODS, pp. 271–281 (2002)
Li, C., Ling, T.W., Hu, M.: Efficient Processing of Updates in Dynamic XML Data. In: Proc. of ICDE (to appear, 2006)
Li, C., Ling, T.W.: QED: A Novel Quaternary Encoding to Completely Avoid Re-labeling in XML Updates. In: Proc. of CIKM, pp. 501–508 (2005)
Li, Q., Moon, B.: Indexing and Querying XML Data for Regular Path Expressions. In: Proc. of VLDB, pp. 361–370 (2001)
Marian, A., Abiteboul, S., Cobena, G., Mignet, L.: Change-Centric Management of Versions in an XML Warehouse. In: Prof. of VLDB, pp. 581–590 (2001)
McHugh, J., Abiteboul, S., Goldman, R., Quass, D., Widom, J.: Lore: A Database Management System for Semistructured Data. SIGMOD Record 26(3), 54–66 (1997)
Nestorov, S., Ullman, J.D., Wiener, J.L., Chawathe, S.S.: Representative Objects: Concise Representations of Semistructured, Hierarchial Data. In: Prof. of ICDE, pp. 79–90 (1997)
O’Neil, P.E., O’Neil, E.J., Pal, S., Cseri, I., Schaller, G., Westbury, N.: ORDPATHs: Insert-Friendly XML Node Labels. In: Prof of ACM SIGMOD, pp. 903–908 (2004)
Silberstein, A., He, H., Yi, K., Yang, J.: BOXes: Efficient Maintenance of Order-Based Labeling for Dynamic XML Data. In: Proc. of ICDE, pp. 285–296 (2005)
Tatarinov, I., Viglas, S., Beyer, K.S., Shanmugasundaram, J., Shekita, E.J., Zhang, C.: Storing and querying ordered XML using a relational database system. In: Proc. of ACM SIGMOD, pp. 204–215 (2002)
Wang, F., Zaniolo, C., Zhou, X., Moon, H.J.: Managing Multiversion Documents & Historical Databases: a Unified Solution Based on XML. In: Proc. of WebDB, pp. 151–153 (2005)
Wang, F., Zhou, X., Zaniolo, C.: An XML-Based Approach to Publishing and Querying the History of Databases. World Wide Web Journal, 1–30 (2005)
Wu, X., Lee, M.L., Hsu, W.: A Prime Number Labeling Scheme for Dynamic Ordered XML Trees. In: Proc. of ICDE, pp. 66–78 (2004)
Yoshikawa, M., Amagasa, T., Shimura, T., Uemura, S.: XRel: a path-based approach to storage and retrieval of XML documents using relational databases. ACM Trans. Internet Techn. 1(1), 110–141 (2001)
Zhang, C., Naughton, J.F., DeWitt, D.J., Luo, Q., Lohman, G.M.: On Supporting Containment Queries in Relational Database Management Systems. In: Proc. of ACM SIGMOD, pp. 425–436 (2001)
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Li, C., Ling, T.W., Hu, M. (2006). Reuse or Never Reuse the Deleted Labels in XML Query Processing Based on Labeling Schemes. In: Li Lee, M., Tan, KL., Wuwongse, V. (eds) Database Systems for Advanced Applications. DASFAA 2006. Lecture Notes in Computer Science, vol 3882. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11733836_46
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DOI: https://doi.org/10.1007/11733836_46
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