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Group-by and aggregate functions in XML keyword search
conference contribution
posted on 2023-05-23, 09:03 authored by Le, TN, Bao, Z, Ling, TW, Dobbie, GIn this paper, we study how to support group-by and aggregate functions in XML keyword search. It goes beyond the simple keyword query, and raises several challenges including: (1) how to address the keyword ambiguity problem when interpreting a keyword query; (2) how to identify duplicated objects and relationships in order to guarantee the correctness of the results of aggregation functions; and (3) how to compute a keyword query with group-by and aggregate functions.We propose an approach to address the above challenges. As a result, our approach enables users to explore the data as much as possible with simple keyword queries. The experimental results on real datasets demonstrate that our approach can support keyword queries with group-by and aggregate functions which are not addressed by the LCA-based approaches while achieving a similar response time to that of LCA-based approaches.
History
Publication title
Database and Expert Systems ApplicationsVolume
LNCS 8864 (part 1)Editors
H Decker, L Lhotska, S Link, M Spies, RR WagnerPagination
105-121ISBN
978-3-319-10072-2Department/School
School of Information and Communication TechnologyPublisher
SpringerPlace of publication
Heidelberg, GermanyEvent title
25th International Conference on Database and Expert Systems (DEXA 2014)Event Venue
Munich, GermanyDate of Event (Start Date)
2014-09-01Date of Event (End Date)
2014-09-04Rights statement
Copyright 2014 SpringerRepository Status
- Restricted