Showing 1 - 10 of 13
This paper develops a cumulative entropy method (CEM) to recognize the most suitable distribution for model error. In terms of the CEM, the Lévy stable distribution is employed to capture the statistical properties of model error. The strategies are tested on 250 experiments of axially loaded...
Persistent link: https://www.econbiz.de/10011117866
In this study, we investigate three kinds of fractional differential models (distributed-order model, variable-order model and random-order model) for characterization of anomalous diffusion. The characteristics, physical advantages and potential applications of each model are highlighted. The...
Persistent link: https://www.econbiz.de/10010873851
We make a failsafe extension to the incomplete minority game model, give a brief analysis on how incompleteness will effect system efficiency. Simulations that limited incompleteness in strategies can improve the system efficiency. Among three failsafe modes, the “Back-to-Best” mode brings...
Persistent link: https://www.econbiz.de/10011057454
The determination of overlapping degree of interfacial layers is crucial to evaluate physical properties of particulate composites. The purpose of the present work is to develop a theoretical scheme for the overlapping degree of interfacial layers around polydisperse ellipsoidal particles in...
Persistent link: https://www.econbiz.de/10010744311
The purpose of this paper is to offer a unified discussion of variable-order differential operators in anomalous diffusion modeling. The characteristics of the new models, in contrast to constant-order fractional diffusion models, change with time, space, concentration or other independent...
Persistent link: https://www.econbiz.de/10010591291
The evacuation process of students from a classroom is investigated by both experiment and modeling. We investigate the video record of the pedestrian movement in the classroom, and find some typical characteristics of the evacuation, including variable velocity, dislocable queuing, monopolizing...
Persistent link: https://www.econbiz.de/10010872122
In this study, experiments of single-file pedestrian movement were conducted and the movement parameters of pedestrians were extracted with a digital image processing method based on a mean-shift algorithm. The microscopic characteristics of pedestrian dynamics, including velocity, density, and...
Persistent link: https://www.econbiz.de/10011060566
A recent field study confirmed that animal crowd behavior is dominated by the interaction from the k-Nearest-Neighbors rather than all the neighbors in a given metric distance. For the reason that systems with local interaction perform similar self-organized phenomena, we in this paper build two...
Persistent link: https://www.econbiz.de/10011062508
We introduce a deterministic aspiration-based learning mechanism into the prisoner’s dilemma game on regular lattices and then investigate the evolution of cooperation for different values of aspiration level A. It is found that the cooperation level exhibits discontinuous phase transition...
Persistent link: https://www.econbiz.de/10011063803
The evacuation process in a teaching building with two neighboring exits is investigated by means of experiment and modeling. The basic parameters such as flow, density and velocity of pedestrians in the exit area are measured. The exit-selecting phenomenon in the experiment is analyzed, and it...
Persistent link: https://www.econbiz.de/10010590174