From elusive to ubiquitous: understanding smart cities

The ubiquitous efficiency of going further: how street networks affect travel speed

As cities struggle to adapt to more ``people-centered'' urbanism, transportation planning and engineering must innovate to expand the street network strategically in order to ensure efficiency but also to deter sprawl. Here, we conducted a study of over 200 cities around the world to understand the impact that the patterns of deceleration points in streets due to traffic signs has in trajectories done from motorized vehicles. We demonstrate that there is a ubiquitous nonlinear relationship between time and distance in the optimal trajectories within each city. More precisely, given a specific …

Death by AI: Where Assured Autonomy in Smart Cities Meets the End-to-End Argument

A smart city involves critical infrastructure systems that have been digitally enabled. Increasingly, many smart city cyber-physical systems are becoming automated. The extent of automation ranges from basic logic gates to sophisticated, artificial intelligence (AI) that enables fully autonomous systems. Because of modern society's reliance on autonomous systems in smart cities, it is crucial for them to operate in a safe manner; otherwise, it is feasible for these systems to cause considerable physical harm or even death. Because smart cities could involve thousands of autonomous systems oper…

ConnectiCity, augmented perception of the city

As we move through cities in our daily lives, we are in a constant state of transformation of the spaces around us. The form and essence of urban space directly affects people's behavior, describing in their perception what is possible or impossible, allowed or prohibited, suggested or advised against. We are now able to fill and stratify space/time with digital information layers, completely wrapping cities in a membrane of information and of opportunities for interaction and communication. Mobile devices, smartphones, wearables, digital tags, near field communication devices, location based …

智慧城市应用的概念化：需求、架构、安全问题与新兴趋势

Conceptualizing Smart City Applications: Requirements, Architecture, Security Issues and Emerging Trends

本文概述智慧城市的概念、应用架构与安全隐私挑战，并指出未来研究方向，旨在促进可持续城市化发展。

使用 Transformer 神经网络定义智慧城市

On Defining Smart Cities using Transformer Neural Networks

本文利用基于 Transformer 架构的生成式 AI 和语义文本分析，审查 60 个现有智慧城市定义，提出通过余弦相似度评估的“折中”定义，为智慧城市概念提供普遍接受的共识。

Privacy in the Internet of Things: Threats and Challenges

The Internet of Things paradigm envisions the pervasive interconnection and cooperation of smart things over the current and future Internet infrastructure. The Internet of Things is, thus, the evolution of the Internet to cover the real-world, enabling many new services that will improve people's everyday lives, spawn new businesses and make buildings, cities and transport smarter. Smart things allow indeed for ubiquitous data collection or tracking, but these useful features are also examples of privacy threats that are already now limiting the success of the Internet of Things vision when n…