With the rapid development of mobile Internet, the network has become an important
medium for people to exchange information. The research on text classification has practical …

The moving k nearest neighbor query, which computes one's k nearest neighbor set and
maintains it while at move, is gaining importance due to the prevalent use of smart mobile …

In this paper, we study a new form of reverse nearest neighbor (RNN) queries, ie, obstructed
reverse nearest neighbor (ORNN) search. It considers the impact of obstacles on the …

Despite the ubiquity of physical obstacles (eg, buildings, hills, and blindages, etc.) in the real
world, most of spatial queries ignore the obstacles. In this article, we study a novel form of …

In this paper, we study a new form of reverse nearest neighbor (RNN) queries, ie, obstructed
reverse nearest neighbor (ORNN) search. It considers the impact of obstacles on the …

The moving kk nearest neighbor (M k NN) query has been studied extensively. Most of the
studies assume no obstacle in the space. However, obstacles like rivers, buildings and …

Abstract The All-k-Nearest-Neighbor (A k NN) operation is common in many applications
such as GIS and data analysis/mining. In this paper, for the first time, we study a novel …

The moving k nearest neighbor query computes one's k nearest neighbor set and maintains
it while at move. This query is gaining importance due to the prevalent use of smart mobile …

Currently, there has been an increasing development in the area of location-based service,
ranging from resource tracking to personal life assistance. An important query in this area is …

In this paper, we study the Continuous Obstructed Range (COR) queries in spatio-temporal
databases, which consider the impact of obstacles on the distance between objects. Given a …