Showing 1 - 10 of 68
In this paper, the delay probability of the original Nagel and Schreckenberg model is modified to simulate one-lane traffic flow. The delay probability of a vehicle depends on its corresponding gap. According to simulation results, it has been found that the structure of the fundamental diagram...
Persistent link: https://www.econbiz.de/10010588968
Using the cellular automaton traffic flow model, we investigate an unsignalized intersection which consists of two perpendicular one-lane roads. Both the roads cross at a point and the intersecting roads are cyclic. Each vehicle may pass or occupy the intersection where all the vehicles on both...
Persistent link: https://www.econbiz.de/10010591668
This paper studies phase diagrams of traffic states induced by the bottleneck of an unsignalized intersection which consists of two perpendicular one-lane roads. Parallel updates rules are employed for both roads. At the crossing point, in order to avoid colliding, the consideration of yield...
Persistent link: https://www.econbiz.de/10011117870
In this paper, we introduce a modified collaborative filtering (MCF) algorithm, which has remarkably higher accuracy than the standard collaborative filtering. In the MCF, instead of the cosine similarity index, the user–user correlations are obtained by a diffusion process. Furthermore, by...
Persistent link: https://www.econbiz.de/10011424630
In this Brief Report, we propose an index of user similarity, namely, the transferring similarity, which involves all high-order similarities between users. Accordingly, we design a modified collaborative filtering algorithm, which provides remarkably higher accurate predictions than the...
Persistent link: https://www.econbiz.de/10011424631
In this paper, we propose a spreading activation approach for collaborative filtering (SACF). By using the opinion spreading process, the similarity between any users can be obtained. The algorithm has remarkably higher accuracy than the standard collaborative filtering using the Pearson...
Persistent link: https://www.econbiz.de/10011424632
In this article, we proposed a susceptible-infected model with identical infectivity, in which, at every time step, each node can only contact a constant number of neighbors. We implemented this model on scale-free networks, and found that the infected population grows in an exponential form...
Persistent link: https://www.econbiz.de/10011424638
We study individual coherent preferences underlying asset prices and propose a set of explicit models for nonlinear V-shaped price pressure utility in a new framework. Coherent preferences are consistent interactive choices between momentum trading and reversal trading in stock market where...
Persistent link: https://www.econbiz.de/10012854377
A complex system consists of a lot of interactive individuals, agents, or units. It occurs widely but is hard to model in both natural and social sciences. Its behavior is neither regular nor random. However, it has some kinds of structures which capture our interesting to study. We can apply...
Persistent link: https://www.econbiz.de/10013243222
When planning for the evacuation guidance, how to efficiently set the trained evacuation leaders is an important problem which has great impact on the evacuation process. This paper investigates the effect of the number and positions of evacuation leaders on the evacuation dynamics in rooms with...
Persistent link: https://www.econbiz.de/10010872881