| 研究課題/領域番号 |
20K19859
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| 研究機関 | 東京大学 |
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研究代表者 |
姜 仁河 東京大学, 情報基盤センター, 助教 (20865266)
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| 研究期間 (年度) |
2020-04-01 – 2022-03-31
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| キーワード | smart city / society 5.0 / crowd density / crowd flow / human mobility |
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| 研究実績の概要 |
Predicting the density and flow of the crowd or traffic at a citywide level becomes possible by using the big data and cutting-edge AI technologies. It has been a very significant research topic with high social impact, which can be widely applied to emergency management, traffic regulation, and urban planning.
In this year, we have the following achivements: (1) We propose a new concept called video-like urban computing (4D tensor prediction), based on which, a series of research problems could be uniformly defined and formulated. (2) We publish a new dataset for crowd density and in-out flow prediction together with Yahoo Japan Research, which is generated based on a real-world smartphone app. (3) We also collect multiple open datasets on crowd density, taxi demand, traffic accident.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
Originally, we have set the following four targets.
(1) Collect the open datasets for crowd density, crowd flow, and taxi demand. (2) Try to publish new datasets for crowd density and crowd flow that have higher quality than the existing ones. (3) Try to implement the state-of-the-art deep learning models for crowd density prediction, crowd flow prediction, and taxi demand prediction. (4) Based on the above, develop a dominant model for a series of mesh-based prediction problems.
In the past year, we have finished (1)(2)(3) and part of (4). In the next year, we will continue to develop a superior model for crowd density and flow prediction. Moreover, we would like to apply our model to other similar tasks such as eletricity demand prediction, air quality prediction, and so on.
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| 今後の研究の推進方策 |
(1) We will explore the limitations of the state-of-the-arts and try to integrate the advanced techniques from different models to build a new and super-dominant model.
(2) We will extend those models and algorithms to be applicable to other related research problems other than citywide crowd/traffic prediction, such as, citywide air quality prediction, citywide power consumption prediction, citywide transportation demand prediction and so on.
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| 次年度使用額が生じた理由 |
Due to the COVID-19, I could not attend many international conferences, therefore, I could not use the travel budgets as planned.
The COVID-19 situation is still lasting this year, so I think the travel budgets for this year will also be left. Instead, I try to move the travel budgets to the product budgets to buy a new GPU server by using around 2 millon yens.
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