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Type: Conference paper
Title: Efficient computation of multiple XML keyword queries
Author: Yao, L.
Liu, C.
Li, J.
Zhou, R.
Citation: Lecture Notes in Artificial Intelligence, 2013 / Lin, X., Manolopoulos, Y., Srivastava, D., Huang, G. (ed./s), vol.8180, iss.PART 1, pp.368-381
Publisher: Springer
Issue Date: 2013
Series/Report no.: LNCS
ISBN: 9783642412295
ISSN: 0302-9743
Conference Name: International Conference on Web Information Systems Engineering (WISE) (13 Oct 2013 - 15 Oct 2013 : Nanjing, China)
Editor: Lin, X.
Manolopoulos, Y.
Srivastava, D.
Huang, G.
Statement of
Liang Yao, Chengfei Liu, Jianxin Li, and Rui Zhou
Abstract: Answering keyword queries on XML data has been extensively studied. Current XML keyword search solutions primarily focus on single query setting where queries are answered individually. In many applications for searching information such as jobs and publications, an application server often receives a large number of keyword queries in a short period of time and many of them may share common keywords. Therefore, answering keyword queries in batches will significantly enhance the performance of these applications. In this paper, we investigate efficient approaches for computing multiple XML keyword queries. We first propose an approach that maximizes the sharing among keyword queries. We then consider useful data information and propose two data-aware algorithms: a short eager algorithm and a log based optimal algorithm. We evaluate the proposed algorithms on real and synthetic datasets and the experimental results demonstrate their efficiencies.
Rights: © Springer-Verlag Berlin Heidelberg 2013
DOI: 10.1007/978-3-642-41230-1_31
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