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Liping Zhang, Jing Li and Song Li
Aiming at the problem that the existing spatial keyword group query problem did not consider the query requirements with exclusion keywords and time attributes, a time-aware group query problem with exclusion keywords (TEGSKQ) is proposed for the first t...
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Liping Zhang, Jing Li and Song Li
A new spatial keyword group query method is proposed in this paper to address the existing issue of user privacy leakage and exclusion of preferences in road networks. The proposed query method is based on the IGgram-tree index and minimum hash set. To d...
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Yun Li, Yongyao Jiang, Justin C. Goldstein, Lewis J. Mcgibbney and Chaowei Yang
One longstanding complication with Earth data discovery involves understanding a user?s search intent from the input query. Most of the geospatial data portals use keyword-based match to search data. Little attention has focused on the spatial and tempor...
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Xiangdian Zhu, Ye Wu, Luo Chen and Ning Jing
The tremendous advance in information technology has promoted the rapid development of location-based services (LBSs), which play an indispensable role in people?s daily lives. Compared with a traditional LBS based on Point-Of-Interest (POI), which is an...
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Emmanuel Papadakis, George Baryannis, Andreas Petutschnig and Thomas Blaschke
Searching for places rather than traditional keyword-based search represents significant challenges. The most prevalent method of addressing place-related queries is based on place names but has limited potential due to the vagueness of natural language ...
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