Traffic flow data prediction method, storage medium and computer equipment

A traffic flow and data prediction technology, applied in the information field, can solve problems such as insufficient feature extraction capabilities

Active Publication Date: 2020-05-12
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

For example, if there is a traffic accident in a certain place, and the traffic flow in this place is seriously congested, then the traffic flow in this place will have an impact on the traffic flow for a long time in the future, but ordinary LSTM is not capable of extracting the features of such nodes.

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  • Traffic flow data prediction method, storage medium and computer equipment
  • Traffic flow data prediction method, storage medium and computer equipment
  • Traffic flow data prediction method, storage medium and computer equipment

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] The data form of traffic flow is sequential grid data. In order to deal with this form of data, we need a system that can not only deal with the correlation of information in the spatial dimension, but also process the information in the time dimension. We propose a traffic flow prediction model based on deep learning that can process both the spatial dimension and the time dimension. The traffic flow prediction model obtained after training can be used to predict the traffic flow in the future. The model mainly includes A convolutional neural network for extracting spatial features and a...

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Abstract

The invention discloses a traffic flow data prediction method. The prediction method comprises the steps of obtaining historical traffic flow data related to a to-be-predicted moment; extracting spatial features of the historical traffic flow data by using the trained spatial feature extraction network; inputting the extracted spatial features into a trained time sequence feature extraction network, wherein the time sequence feature extraction network comprises a first long-short-term memory neural network and a second long-short-term memory neural network; wherein the first long-short-term memory neural network outputs long-term time sequence characteristics, and the second long-short-term memory neural network outputs short-term time sequence characteristics and congestion characteristics; and outputting traffic flow data at the moment to be predicted according to the long-term time sequence characteristics, the short-term time sequence characteristics and the congestion characteristics. Compared with a traditional long-term and short-term memory neural network, the long-term and short-term memory neural network based on the ordered neurons is used, influences brought by emergencies can be better captured, and the method is more suitable for variable traffic environments.

Description

technical field [0001] The invention belongs to the field of information technology, and in particular relates to a training method and a prediction method of a traffic flow prediction model, a computer-readable storage medium, and a computer device. Background technique [0002] With the improvement of people's living standards and the change of consumption concept, cars have become the standard configuration of every family. At the same time, the transportation network planning of many cities is early, and there is no road planning space reserved for future urban development. Due to the rapid increase in the number of cars and the unreasonable planning of roads in old cities, traffic congestion has become a persistent problem in almost every developing city. Extreme traffic jams in the morning and evening rush hours degrade people's life experience. Therefore, reasonable route planning or accurate off-peak travel is a huge demand for people in congested cities. However,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/065
CPCG08G1/0104G08G1/065
Inventor 叶可江郭景杰须成忠
Owner SHENZHEN INST OF ADVANCED TECH
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