ID |
原文 |
译文 |
39716 |
校准新模型,从而确定模型的最优参数与结构, |
The established model is calibrated by the car-following data, and the optimal parameters and structure of the model are determined. |
39717 |
依据车辆跟驰特性通过仿真验证了模型有效性,与神经网络、支持向量回归进行对比,仿真结果证明,结合了L-BFGS优化的GRU车辆跟驰模型比仅考虑前导车与跟驰车间瞬时相互作用的车辆跟驰模型,能得到更高的仿真精度和稳定性。 |
According to car-following characteristics, the effectiveness of model is verified by simulation. It is confirmed that the model has high robustness and improved simulation accuracy comparing with the traditional models. |
39718 |
随着城市化过程的加快,掌握精细尺度上的人口分布对城市灾害评估、应急响应管理和公共资源配置具有重要意义。 |
With the acceleration of the urbanization process, mastering the population distribution on a fine scale is of great significance for urban disaster assessment, emergency response management and public resource allocation. |
39719 |
智能手机普及和互联网快速发展促使手机成为人类活动的传感器。 |
The rapid development of the Internet and the popularity of smartphones have prompted mobile phones to become the sensors of human activity. |
39720 |
提出一种基于手机大数据的城市建筑物人口估算方法,该方法基于典型区域的手机定位大数据分析了不同功能建筑物人群活动规律,计算不同使用功能建筑物的人口容纳能力,建立城市建筑物人口时空分布模型。 |
A method of urban building population estimation based on mobile phone big data is proposed. The method analyzes the crowd activity law of buildings with different functions based on mobile phone positioning big data in typical areas, calculates the population capacity of different functional buildings, and establishes the spatial and temporal distribution model of urban building population. |
39721 |
实验结果表明,该方法基本实现了城市建筑物尺度上人口的时空分布。 |
Experimental results show that the method basically achieves the spatial and temporal distribution of population on the scale of urban buildings. |
39722 |
多种群优化方法可以解决数据量增大导致的优化难度增加的问题,现有的种群分组都采用随机分组或人为设定的方法,没有充分考虑粒子运动轨迹。 |
Multi-population optimization method can solve the optimization difficulty caused by the increase of data volume, but the existing population grouping is carried out by means of random grouping or artificial setting, which doesn't take particle trajectories into full consideration. |
39723 |
针对此问题,提出一种种群分组自适应动态控制策略,使用高斯拟合函数作为种群分组的参考曲线,根据函数单调区间划分子种群; |
In view of the problem a self-adaptive dynamic control strategy of population grouping is proposed, which uses Gaussian fitting function as the reference curve of population grouping and divides sub populations according to the function's monotone interval. |
39724 |
对于有越过子种群上界趋势的粒子采用逆向策略,保持种群多样性同时提高收敛速度。 |
For particles with the trend of crossing the upper boundary of sub populations, the contrarian strategy is adopted to maintain the population diversity and improve the convergence speed. |
39725 |
该策略不依赖于算法的具体进化过程,适用于所有基于种群优化的自然计算方法。 |
The tactics does not rely on concrete evolution procedure of the algorithm, and the strategy is applicable to all nature computation means, based on population optimization. |