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A NEPHOGRAM PREDICTION METHOD BASED ON GENERATIVE ADVERSARIAL NETWORK

机译:一种基于生成对策网络的网页预测方法

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As one of the important sources of meteorological information, satellite nephogram is playing an increasingly important role in the detection and forecast of disastrous weather. The predictions about the movement and transformation of cloud with certain timeliness can enhance the practicability of satellite nephogram. Based on the generative adversarial network in unsupervised learning, we propose a prediction model of time series nephogram, which construct the internal representation of cloud evolution accurately and realize nephogram prediction for the next several hours. We improve the traditional generative adversarial network by constructing the generator and discriminator used the multi-scale convolution network. After the scale transform process, different scales operate convolutions in parallel and then merge the features. This structure can solve the problem of long-term dependence in the traditional network, and both global and detailed features are considered. Then according to the network structure and practical application, we define a new loss function combined with adversarial loss function to accelerate the convergence of model and sharpen predictions which keeps the effectivity of predictions further. Our method has no need to carry out the stack mathematics calculation and the manual operations, has greatly enhanced the feasibility and the efficiency. The results show that this model can reasonably describe the basic characteristics and evolution trend of cloud cluster, the prediction nephogram has very high similarity to the ground-truth nephogram.
机译:作为气象信息的重要来源之一,卫星彩网在灾难性天气的检测和预测中发挥着越来越重要的作用。关于云运动和转化的预测,具有一定的时间性可以提高卫星盖皮图的实用性。基于在无监督学习中的生成的对抗性网络,我们提出了一种时间序列盖图的预测模型,该预测模型准确地构建了云演化的内部表示,实现了未来几个小时的浊图预测。我们通过构建发电机和鉴别器使用多尺度卷积网络来改善传统的生成对抗性网络。在缩放变换过程之后,不同的尺度并行操作卷曲,然后合并功能。这种结构可以解决传统网络中长期依赖的问题,并且考虑了全球和详细的特征。然后根据网络结构和实际应用,我们定义了一种新的损失函数与对抗性丢失功能结合,以加速模型的收敛和锐化预测,这进一步保持了预测的有效性。我们的方法无需执行堆栈数学计算和手动操作,大大提高了可行性和效率。结果表明,该模型可以合理地描述云集群的基本特征和演进趋势,预测侄子与地面真实的盖皮非常高的相似性。

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