相关实验视频
Updated: Jul 13, 2025

16:14
Trajectory Data Analyses for Pedestrian Space-time Activity Study
Published on: February 25, 2013
13.6K
一个机器学习的方法,一个流动性政策提案的建议
Miljana Shulajkovska1, Maj Smerkol1, Erik Dovgan1
1Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
Heliyon
|October 16, 2023
概括
在 URBANITE 项目中,开发了一个具有机器学习的智能城市模拟工具,以加快城市官员的政策测试. 这种人工智能驱动的框架有助于分析数据,识别趋势,并建议有效的交通政策,将排放量减少5%以上.
科学领域:
- 城市规划 城市规划
- 环境科学 环境科学
- 计算机科学 计算机科学
背景情况:
- 欧洲城市在城市发展和政策实施方面的决策方面面临复杂的挑战.
- 现有的政策测试方法耗时,阻碍了有效的城市管理.
- 对于支持城市政策分析和决策的数据驱动工具的需求至关重要.
研究的目的:
- 设计一个开放数据,开源智能城市框架,以改善城市决策过程.
- 开发一个具有机器学习能力的模拟工具,用于分析城市场景和政策.
- 为城市官员加快政策测试周期,使政策验证更快,更有效.
主要方法:
- 开发一个智能城市框架,集成一个模拟工具和一个多输出机器学习单元.
- 部署框架来分析潜在的城市场景,关键绩效指标和公用事业功能.
- 评估系统使用比尔巴奥Moyua地区的数据来测试交通限制政策.
主要成果:
- 机器学习单元显著减少了政策验证时间,从3小时减少到大约10秒.
- 评估的战略表明,氧化物 (NOx) 和颗粒物 (PM) 的潜在排放减少超过5%.
- 该系统在识别有效的交通限制政策方面实现了91%的机器学习准确度.
结论:
- URBANITE框架提供了一个强大且易于使用的工具,用于加强城市政策分析和决策.
- 机器学习的整合加快了政策测试,为城市管理提供了宝贵的见解.
- 该框架显示了在欧洲城市显著减少排放和优化交通管理的潜力.
相关概念视频
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
62
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
62
Mechanistic Models: Compartment Models in Individual and Population Analysis
59
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
59
Model Approaches for Pharmacokinetic Data: Distributed Parameter Models
79
Pharmacokinetic models are mathematical constructs that represent and predict the time course of drug concentrations in the body, providing meaningful pharmacokinetic parameters. These models are categorized into compartment, physiological, and distributed parameter models.
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
79
Manipulation and Analysis
28
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
28
Rolling Resistance: Problem Solving
352
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
352
Analysis Methods of Pharmacokinetic Data: Model and Model-Independent Approaches
155
Drug disposition in the body is a complex process and can be studied using two major approaches: the model and the model-independent approaches.
The model approach uses mathematical models to describe changes in drug concentration over time. Pharmacokinetic models help characterize drug behavior in patients, predict drug concentration in the body fluids, calculate optimum dosage regimens, and evaluate the risk of toxicity. However, ensuring that the model fits the experimental data accurately...
The model approach uses mathematical models to describe changes in drug concentration over time. Pharmacokinetic models help characterize drug behavior in patients, predict drug concentration in the body fluids, calculate optimum dosage regimens, and evaluate the risk of toxicity. However, ensuring that the model fits the experimental data accurately...
155

