As a popular and practical query type in location-based services, the spatial keyword query
has been extensively studied in both academia and industry. Meanwhile, with the growing …

Spatial objects often come with textual information, such as Points of Interest (POIs) with
their descriptions, which are referred to as geo-textual data. To retrieve such data, spatial …

Abstract The growth of Location-Based Services (LBSs) has been made possible by the
widespread use of GPS-enabled devices. Some important LBSs require the ability to quickly …

With the emergence of GPS-equipped portable devices and Online Social Networks, geo-
tagged textual data have been highly produced on a continuous basis, which can provide …

The increasing prevalence of cloud computing drives the exploration of various secure
query schemes over encrypted data, among which secure spatial keyword query has drawn …

With the spread of GPS-equipped portable devices, Location-Based Services (LBSs)
flourished. Some crucial LBSs require real-time processing of moving spatial-keyword …

Big spatio-textual data are prevalent in modern applications, where spatial objects are
associated with textual descriptions. For querying spatio-textual data, spatial-keyword …

In this paper, we address the problem of semantic similarity search over spatio-textual data.
In contrast with most existing works on spatial-keyword search that rely on exact matching of …

Geo-textual searches involve keywords and spatial location restrictions. One example is the
search for Points of Interest (POIs), such as schools and supermarkets, in applications such …

In this thesis, we address the problem of semantic similarity search over spatiotextual data.
In contrast with most existing works on spatial-keyword search that rely on exact matching of …