Based on the traditional city, smart city is a new city that is constructed by Internet of things, mobile Internet, cloud computing, big data and other information technologies. Smart city can change interaction way of people, improve the real-time processing capability of information and response speed; promote comprehensive and sustainable development of various social works of smart city. Bu...

Night-time satellite imagery provided by the Defense Meteorological Satellite Program’s Operational Linescan System (DMSP OLS) is evaluated as a means of estimating the population of all the cities of the world based on their areal extent in the image. A global night-time image product was registered to a dataset of 2000 known city locations with known populations. A relationship between areal ...

With the widespread use of mobile computing devices in contemporary society, our trajectories in the physical space and virtual world are increasingly closely connected. Using the anonymous smartphone data of 1 × 10(5) users in a major city of China, we study the interplay between online and offline human behaviors by constructing the mobility network (offline) and the attention network (online...

This chapter is an empirical attempt to identify the nature and regional dimension of port-city relationships on a world scale. Although general processes of such relationships can be identified in the literature, regional variations are still not well understood when dealing with the insertion of port cities in the global transport chain. An analysis of a world sample is proposed using simple ...

This paper presents an analysis of the geography of the booming ‘Islamic financial services’ (IFS) sector, which provides a host of financial services based on Islamic religious grounds. The relevance of such an analysis is discussed against the conceptual backdrop of the world city network literature. It is argued that a focus on the globalization of the IFS sector may provide an alternative t...

Many ubiquitous systems and technologies have been developed as of now. As known the goal of ubiquitous computing is to achieve the wellbeing life. There are four different aspects for achieving ubiquitous computing, namely, they are within the computing paradigm, technical principle, application domain and application space. Nowadays, ubiquitous city (U-city) is the most applicable domain in t...

Digital city construction brings many conveniences for people all over the world at present and in the future. Grid platform is a kind of better platform which integrates existing resources to share. This paper combines WebGIS technology with grid technology. It briefly puts forward the key technologies to make people understand concerned technology used in the system, and gives system framewor...

City Indicators are metrics used to measure city performance. Global City Indicators, as developed by the Global Cities Institute at the University of Toronto, are metrics that have been agreed to by over 250 cities world wide and have been approved as ISO 37120. The definitions of the indicators exist only in written form. The purpose of this research is to provide an ontology for representing...

We present a model for growing procedural road networks in and close to cities. The main idea of our paper is that a city cannot be meaningfully simulated without taking its neighbourhood into account. A simple traffic simulation that considers this neighbourhood is then used to grow new major roads and to influence the locations of minor road growth. Waterways are introduced and used to help p...

We sketch a workflow for cognitively plausible recognition of vague geographical concepts, such as a city centre. Our approach imitates a pedestrian strolling through the streets, and comparing his/her internal cognitive model of a city centre with the stimulus from the external world to decide whether he/she is in the city centre or outside. The cognitive model of a British city centre is elic...