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Object-stack: An object-oriented approach for top-k keyword querying over fuzzy XML

Author

Listed:
  • Ting Li

    (Northeastern University)

  • Zongmin Ma

    (Northeastern University
    Nanjing University of of Aeronautics and Astronautics)

Abstract

Keyword search is the most popular technique of searching information from XML (eXtensible markup language) document. It enables users to easily access XML data without learning the structure query language or studying the complex data schemas. Existing traditional keyword query methods are mainly based on LCA (lowest common ancestor) semantics, in which the returned results match all keywords at the granularity of elements. In many practical applications, information is often uncertain and vague. As a result, how to identify useful information from fuzzy data is becoming an important research topic. In this paper, we focus on the issue of keyword querying on fuzzy XML data at the granularity of objects. By introducing the concept of “object tree”, we propose the query semantics for keyword query at object-level. We find the minimum whole matching result object trees which contain all keywords and the partial matching result object trees which contain partial keywords, and return the root nodes of these result object trees as query results. For effectively and accurately identifying the top-K answers with the highest scores, we propose a score mechanism with the consideration of tf*idf document relevance, users’ preference and possibilities of results. We propose a stack-based algorithm named object-stack to obtain the top-K answers with the highest scores. Experimental results show that the object-stack algorithm outperforms the traditional XML keyword query algorithms significantly, and it can get high quality of query results with high search efficiency on the fuzzy XML document.

Suggested Citation

  • Ting Li & Zongmin Ma, 0. "Object-stack: An object-oriented approach for top-k keyword querying over fuzzy XML," Information Systems Frontiers, Springer, vol. 0, pages 1-29.
  • Handle: RePEc:spr:infosf:v::y::i::d:10.1007_s10796-017-9748-0
    DOI: 10.1007/s10796-017-9748-0
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    Citations

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    Cited by:

    1. Zhen Zhao & Zongmin Ma & Li Yan, 2021. "An Efficient Classification of Fuzzy XML Documents Based on Kernel ELM," Information Systems Frontiers, Springer, vol. 23(3), pages 515-530, June.
    2. Martin (Dae Youp) Kang & Anat Hovav, 2020. "Benchmarking Methodology for Information Security Policy (BMISP): Artifact Development and Evaluation," Information Systems Frontiers, Springer, vol. 22(1), pages 221-242, February.

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