Changyong Han

Method of Graph Node Fusion and Its Application on Bus Information Systems

One of the most popular service types that Bus Information Systems (BIS) provide is bus line recommedation. Given a start bus stop and a destination bus stop, a bus line recommendation system returns a list of bus lines that run through those bus stops. That is, the user can reach the destination bus stop by taking the buses running the bus lines returned by the bus line recommendation system. We can find recommended bus lines by analysing a directed graph that represents bus stops and bus lines. Bus stops are represented as nodes in the graph and bus lines are represented as arcs. This paper applies node fusion algorithm in order to improve the efficiency of bus line recommendation.

Implementation of Web Services for ILBS

LBS (Location Based Service) prevails throughout the everyday life. Navigation, logistics, fleet control, POI (Point of Interest), and so on are all types of LBS. LBS is so useful that it should be available everywhere including inside of a building, subway stations, underground shopping malls, and downtown of a big city. Such LBSs provided inside of a building is called ILBS (Indoor LBS). A web service is a piece of software or a database published on Internet so that it can be used in web application development in the standard manner. Therefore, web service is deemed to be a promising technique of developing a web application. This paper introduces our implementation of web services of elementary functions of ILBS system. Indoor positioning, rendering drawings, playing contents are a few of such functions.