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We consider the problem of estimating the route of a mobile user based on the corresponding cellular trace. We are given the sequence of cell sites to which the user's mobile device connects, and we wish to find the most plausible route that corresponds to the sequence. We present an algorithm called RecursiveCellRoute that makes repeated calls to a standard third-party routing engine. At each stage...
Road traffic management is an ongoing challenge. Machine vision (image processing), RFID gates, aerial surveillance, and/or remote sensors technologies are usually used to reduce traffic management problems. However, their major drawbacks are installation difficulties, maintenance over the time, error handling, coverage and cost effectiveness. Thus, low-cost, flexible, easily maintainable and secure...
With the advancement of the urbanization process, traditional centralized dynamic route guidance systems become incapable of handling fast growing traffic large data, due to the computational complexity. In another aspect, the realtime vehicle routing services from customers, such as information pushing and travel time forecasting, are more demanding. Aimed at easing the traffic congestion pressure...
We have sought to develop a navigation system for manual wheelchair users. This report describes a means to produce a database for optimum path finding based on measured data for a system that navigates manual wheelchair users to their respective destinations and enables them to move freely outdoors. We converted actual measurement data to a graph structure that is suitable for a route-finding system...
Protecting the privacy of VANET users is an important issue. We present in this paper an architecture that aims at this goal by integrating Chaum's mix network into a distributed but infrastructure-based location service for position-based routing. In addition we enable the user to decide when he wants to reveal his position to anyone else. Thus neither entity of the VANET is in full knowledge about...
Improving the efficiency of dynamic vehicle routing problem on large scale road network is a difficult problem. There are numerous works proposed on this problem, they try to solve the problem from different aspects. In this paper, we propose a novel method-ellipse bounding method (EBM) based dynamic vehicle routing algorithm, which maintains dynamic ellipses to prune its searching branches while...
Many facility location problems are concerned with minimizing operation and transportation costs by partitioning territory into regions of similar size, each of which is served by a facility. For many optimization problems, the overall cost can be reduced by means of a partitioning into balanced subsets, especially in those cases where the cost associated with a subset is superlinear in its size.In...
Routing algorithm is the key part of public traffic query system. It is important in GIS applications. This paper investigates a lot of the public traffic routing algorithm, analyzes the bus transit networkpsilas characteristic, and therefore constructs a new model of the least times transfer priority algorithm based on database. The algorithm takes the least times transfer as the first goal, considering...
In this paper, we present a method of comparative association rules mining using Genetic Network Programming (GNP) with attributes accumulation mechanism in order to uncover association rules between different datasets. GNP is an evolutionary approach which can evolve itself and find the optimal solutions. The motivation of the comparative association rules mining method is to use the data mining...
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