Abstract Location Dependent Service (LDS) is a kind of information service that are
accessed via mobile devices such as smart phones and other hand held devices that offers …

Location Based Services (LBS) have become extremely popular over the past decade.
Popular LBS run the entire gamut from mapping services (such as Google Maps) to …

Analytic function, also called window function, is to query the aggregation of data over a
sliding window. For example, a simple query over the online stock platform is to return the …

Data Analytics is the key word of today's era. Huge data is getting generated day by day from
various resources starting from social networking sites to sensors then machines. How this …

Recommendation systems help online users with advantageous access to the items and
services they may be intrested on this present reality. Because of the requirements of …

In recent years we have seen an increase in the popularity of many web applications. The
functionality of these applications range from allowing users to interact using online social …

Spatiotemporal datasets have become increasingly available with the introduction of a
various set of applications and services trac-ing the behavior of moving objects. Recently …