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 …

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

Social media platforms generate massive amounts of data that reveal valuable insights
about users and communities at large. Existing techniques have not fully exploited such data …

A dimension-reduced and linearly ordered (DRLOP) index structure for network-constrained
moving objects is proposed to address the challenges posed by the rapid increase in the …

HIFUN is a high-level query language for expressing analytic queries of big datasets,
offering a clear separation between the conceptual layer, where analytic queries are defined …

Streaming spatial-textual data that contains geographic and textual information, eg, geo-
tagged tweets, has an unprecedented increase in amount. As one of the basic operations …

As rich user-generated geotagged data, microblogs have been exploited in several data
analytic contexts, eg, popular topic trends, popular site detection, and geo-targeted …

The availability of modern technology and the recent proliferation of devices and sensors
have resulted in a tremendous amount of data being generated, stored and handled in …