Answering Why-Not Group Spatial Keyword Queries (Extended Abstract)

Bolong Zheng, Kai Zheng, Christian S. Jensen, Nguyen Quoc Viet Hung, Han Su, Guohui Li, Xiaofang Zhou

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Abstrakt

With the proliferation of geo-textual objects on the web, extensive efforts have been devoted to improving the efficiency of top-k spatial keyword queries in different settings. However, comparatively much less work has been reported on enhancing the quality and usability of such queries. In this context, we propose means of enhancing the usability of a top-k group spatial keyword query, where a group of users aim to find k objects that contain given query keywords and are nearest to the users. Specifically, when users receive the result of such a query, they may find that one or more objects that they expect to be in the result are in fact missing, and they may wonder why. To address this situation, we develop a so-called why-not query that is able to minimally modify the original query into a query that returns the expected, but missing, objects, in addition to other objects. Specifically, we formalize the why-not query in relation to the top-k group spatial keyword query, called the Why-not Group Spatial Keyword Query (WGSK) that is able to provide a group of users with a more satisfactory query result. We propose a three-phase framework for efficiently computing he WGSK. Extensive experiments with real and synthetic data offer evidence that the proposed solution excels over baselines with respect to both effectiveness and efficiency.
OriginalsprogEngelsk
TitelProceedings - 2019 IEEE 35th International Conference on Data Engineering, ICDE 2019
Antal sider2
ForlagIEEE
Publikationsdato2019
Sider2155-2156
Artikelnummer8731602
ISBN (Trykt)978-1-5386-7475-8
ISBN (Elektronisk)978-1-5386-7474-1
DOI
StatusUdgivet - 2019
Begivenhed35th IEEE International Conference on Data Engineering, ICDE 2019 - Macau, Kina
Varighed: 8 apr. 201911 apr. 2019

Konference

Konference35th IEEE International Conference on Data Engineering, ICDE 2019
LandKina
ByMacau
Periode08/04/201911/04/2019
NavnProceedings of the International Conference on Data Engineering
ISSN1063-6382

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  • Citationsformater

    Zheng, B., Zheng, K., Jensen, C. S., Hung, N. Q. V., Su, H., Li, G., & Zhou, X. (2019). Answering Why-Not Group Spatial Keyword Queries (Extended Abstract). I Proceedings - 2019 IEEE 35th International Conference on Data Engineering, ICDE 2019 (s. 2155-2156). [8731602] IEEE. Proceedings of the International Conference on Data Engineering https://doi.org/10.1109/ICDE.2019.00272