Urban computing is an interdisciplinary subject, and it is a new field combining computer science with urban planning, transportation, energy, environment, sociology and economics. More specifically, urban computing is a process to solve the challenges faced by cities, such as environmental deterioration, traffic congestion, increased energy consumption, backward planning, etc. ) By continuously acquiring, integrating and analyzing various heterogeneous big data in the city. Urban computing combines ubiquitous perception technology, efficient data management and analysis algorithms and novel visualization technology, and is committed to improving people's quality of life, protecting the environment and promoting urban operation efficiency. Urban computing helps us understand the essence of various urban phenomena and even predict the future of the city.

It is believed that urban computing will soon become the main research direction of municipal management, urban planning and urban design in the future.

Talk about possible shortcomings.

1. Information source deviation. For example, based on the above "optimal route trajectory of sparse social media", people who like to send photos/signatures with addresses have specific personality attributes, and it is difficult to represent all people. Although the adoption of big data may rely on the advantages of information to make up for the above shortcomings, the problem still exists.

2. Public feedback on urban computing. Still according to the above example, assuming that city calculation has been accepted by the public, calculating a popular route in a city will inevitably have a great effect on the route itself: the number of tourists will increase->; Consumption growth->; Rent rises-> Eliminate small businesses. The final result is a tourist route with local characteristics, which is finally occupied by various luxury stores and international first-line brand stores, and the original local culture is strongly impacted. This goes against the original intention of urban computing.

3. Over-interpretation. If city managers have the ability to interfere with cities greatly and have such powerful tools as city calculation, they will have the illusion of "God" and thus interfere with cities more. But the reality is that the city itself is a huge and complex system, just like the ecosystem of grassland or jungle. Any unilateral interference will lead to the imbalance or even out of control of the system. Eventually, it will enter a vicious circle of interference-out of control (although it is already like this)