The rapid popularization of high-speed mobile communication technology and the
continuous development of mobile network devices have given spatial textual big data …

With the rapid development of the Internet of Things, billions of devices should be available
for sensing environment variables and reporting events that may be happened. These …

People often query various Points of Interest (POIs) to plan their city tour itineraries using
location-based services that provide reviews and ratings of various attributes of a POI. Most …

The growing need for location based services motivates the moving k nearest neighbor
query (M k NN), which requires to find the k nearest neighbors of a moving query point …

In this paper, we define a new class of queries, the top-k multiple-type integrated query
(simply, top-k MULTI query). It deals with multiple data types and finds the information in the …

A top-k spatial-keyword query returns the k best spatio-textual objects ranked based on their
proximity to the query location and relevance to the query keywords. Various index schemes …

In this Letter, the authors deal with ranking of keyword‐combined searches in relational
databases based on relevance to the user query, which they call KEYSIM searches. They …

A collaborative wireless sensor network can be particularly vulnerable to cloud security
attacks lacking physical boundaries to the environment and also has constrained energy …