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Identifying future congestion points in electricity distribution networks is an important challenge distribution system operators face. A proven approach for addressing this challenge is to assess distribution grid adequacy using…

系统与控制 · 电气工程与系统科学 2022-07-12 Julian N. Betge , Barbera Droste , Jacco Heres , Simon H. Tindemans

It has been proposed that human physical reasoning consists largely of running "physics engines in the head" in which the future trajectory of the physical system under consideration is computed precisely using accurate scientific theories.…

人工智能 · 计算机科学 2015-06-17 Ernest Davis , Gary Marcus

In the context of public transport modeling and simulation, we address the problem of mismatch between simulated transit trips and observed ones. We point to the weakness of the current travel demand modeling process; the trips it generates…

人工智能 · 计算机科学 2017-12-20 Boris Chidlovskii

The influence of commuting in socio-economic dynamics increases constantly. Analysing and modelling the networks formed by commuters to help decision-making regarding the land-use has become crucial. This paper presents a simple spatial…

物理与社会 · 物理学 2020-03-10 Floriana Gargiulo , Maxime Lenormand , Sylvie Huet , Omar Baqueiro Espinosa

Transportation planning is strongly influenced by the assumption that every individual has for his daily mobility a constant daily budget of ~1 hour. However, recent experimental results are proving this assumption as wrong. Here, we study…

物理与社会 · 物理学 2015-10-06 Riccardo Gallotti , Armando Bazzani , Sandro Rambaldi

Assuming a steady-state condition within a cell, metabolic fluxes satisfy an under-determined linear system of stoichiometric equations. Characterizing the space of fluxes that satisfy such equations along with given bounds (and possibly…

生物物理 · 物理学 2017-04-10 Alfredo Braunstein , Anna Paola Muntoni , Andrea Pagnani

Segregation is a highly nuanced concept that researchers have worked to define and measure over the past several decades. Conventional approaches tend to estimate segregation based on residential patterns in a static manner. In this work,…

物理与社会 · 物理学 2023-04-17 Nandini Iyer , Ronaldo Menezes , Hugo Barbosa

Human mobility is investigated using a continuum approach that allows to calculate the probability to observe a trip to anyarbitrary region, and the fluxes between any two regions. The considered description offers a general and unified…

物理与社会 · 物理学 2013-04-02 Filippo Simini , Amos Maritan , Zoltán Néda

Traffic flow prediction is a big challenge for transportation authorities as it helps plan and develop better infrastructure. State-of-the-art models often struggle to consider the data in the best way possible, as well as intrinsic…

机器学习 · 计算机科学 2024-10-04 Mayur Patil , Qadeer Ahmed , Shawn Midlam-Mohler

Estimating the unknown density from which a given independent sample originates is more difficult than estimating the mean, in the sense that for the best popular non-parametric density estimators, the mean integrated square error converges…

统计理论 · 数学 2021-09-08 Pierre L'Ecuyer , Florian Puchhammer , Amal Ben Abdellah

A significant cause of air pollution in urban areas worldwide is the high volume of road traffic. Long-term exposure to severe pollution can cause serious health issues. One approach towards tackling this problem is to design a…

人工智能 · 计算机科学 2023-03-01 Shreevignesh Suriyanarayanan , Praveen Paruchuri , Girish Varma

Trip flow between areas is a fundamental metric for human mobility research. Given its identification with travel demand and its relevance for transportation and urban planning, many models have been developed for its estimation. These…

物理与社会 · 物理学 2023-09-06 Erjian Liu , Mattia Mazzoli , Xiao-Yong Yan , Jose J. Ramasco

Trip distribution laws are basic for the travel demand characterization needed in transport and urban planning. Several approaches have been considered in the last years. One of them is the so-called gravity law, in which the number of…

物理与社会 · 物理学 2016-01-19 Maxime Lenormand , Aleix Bassolas , José J. Ramasco

Policy evaluation via Monte Carlo (MC) simulation is at the core of many MC Reinforcement Learning (RL) algorithms (e.g., policy gradient methods). In this context, the designer of the learning system specifies an interaction budget that…

机器学习 · 计算机科学 2024-10-18 Riccardo Poiani , Nicole Nobili , Alberto Maria Metelli , Marcello Restelli

Extrinsic Information Transfer (EXIT) functions can be measured by statistical methods if the message alphabet size is moderate or if messages are true a-posteriori distributions. We propose an approximation we call mixed information that…

信息论 · 计算机科学 2016-11-17 Jossy Sayir

Understanding human mobility patterns -- how people move in their everyday lives -- is an interdisciplinary research field. It is a question with roots back to the 19th century that has been dramatically revitalized with the recent increase…

物理与社会 · 物理学 2017-02-08 Minjin Lee , Petter Holme

In modern urban centers, effective transportation management poses a significant challenge, with traffic jams and inconsistent travel durations greatly affecting commuters and logistics operations. This study introduces a novel method for…

机器学习 · 计算机科学 2024-10-10 Shambhavi Mishra , T. Satyanarayana Murthy

We propose a model to describe the optimal distributions of residents and services in a prescribed urban area. The cost functional takes into account the transportation costs (according to a Monge--Kantorovich-type criterion) and two…

最优化与控制 · 数学 2013-12-24 Giuseppe Buttazzo , Filippo Santambrogio

Municipal solid waste management is a paramount activity in modern cities due to the environmental, social and economic problems that can arise when mishandled. In this work, the sequencing of micro-routes in the Argentine city of Bah\'ia…

最优化与控制 · 数学 2024-03-29 SofÍa Molfese , Diego Rossit , Mariano Frutos , Antonella Cavallin

Among random sampling methods, Markov Chain Monte Carlo algorithms are foremost. Using a combination of analytical and numerical approaches, we study their convergence properties towards the steady state, within a random walk Metropolis…

统计力学 · 物理学 2024-01-08 Alexei D. Chepelianskii , Satya N. Majumdar , Hendrik Schawe , Emmanuel Trizac