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The real-time and accurate forecasting of expressway traffic is an important prerequisite for the development of reasonable traffic management control scheme, the reasonable choice of travel route and the effective prevention of traffic congestion. The current traffic data are mostly collected using a variety of monitoring equipment, but the data can only reflect a certain traffic flow and the cost...
This paper presents a framework which is composed of a batik cloth model, a differential equation and an ellipse model for simulating batik cloth. The batik cloth model consists of three layers: wax layer, warp layer and weft layer. Warp and weft layer interlace between the wax layers. Based on Fick's second law, the differential equation is used to describe diffusion process and is discretized. Equation...
In this paper, we propose an effective method to recognize human actions. Combined with the relationship between 3D skeleton model of joint position and particle group optimization algorithm is used to optimize the support vector machine (PSO-SVM) and depth through the Kinect sensor to obtain human 3D skeleton model, each skeletal model with 20 joints and 19 joints, the relative geometry between various...
Partially observable Markov decision processes (POMDPs) provide a rich mathematical model for sequential decision making in partially observable and stochastic environments. Model-free methods use the internal state as a substitute of the belief state which is a sufficient statistic of all past action-observation history in model-based techniques. A main drawback of previous model-free techniques,...
Smart-phone is a major channel of interpersonal communication. As the rapid development of communication technology, its function is becoming ever more powerful. Meanwhile, people are far more dependent on it. This study aims at investigating how long undergraduate students spend on their smart-phones everyday and the relationship between the time of smart-phone use and loneliness, as while as examining...
This paper presents a fast implementation of multi-band blending for combining a set of registered images into a composite mosaic with no visible seams and minimal texture distortion. We first compute a unique seam image using two-pass nearest distance transform, which is independent on the order of input images and has good scalability. Each individual mask can be extracted from this seam image quickly...
Market mechanisms have been exploited as important means for spectrum acquisition and access in cognitive radio networks. In this paper, we propose a two-tier market for decentralized dynamic spectrum access. In the proposed Tier-1 market, spectrum is traded from a primary user (PU) to secondary users (SUs) in a relatively large time scale to reduce signaling overhead. Then, driven by dynamic traffic...
When shipping corporations plan design their voyages and the method of port berthing, port jam is a factor of much concern to them.Through analysis of the features of the spatially inhomongeneous shipping flow phase, this article uses the master probability equation model and Kerner’s three-phase flow theory to explain the cause of the free flow phase’s conversion to the synchronized flow phase.Putting...
Control of regenerative retarding of a vehicle equipped with a new energy recovery retarder is investigated in this paper. The handle and pedal operations are designed to satisfy the need of control of vehicle brake under different working conditions. As the dynamics of the retarding process is highly nonlinear and time-variant, the control of regenerative retarding becomes rather complicated. For...
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