Browsing by Author "Chiang, Chi-Chun"

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A Dynamic Data-Driven Fine-Tuning Approach for Stacked Auto-Encoder Neural Network
(2017-01-01)
Lin, Szu-Yin
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Chiang, Chi-Chun
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Hung, Zih-Siang
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Zou, Yu-Hui
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資訊管理與財務金融系註：原資管所+財金所
With the advent of the big data era, dynamic and real-time data have increased in both volume and varieties. It is a difficult task to achieve an accurate prediction results to rapidly dynamic changing data. The stacked auto-encoder is a neural network approach in machine learning for feature extraction. It attempts to model high-level abstractions and dimension reduction in data by using multiple processing layers. However, some of the common issues may occur during the implementation process of deep learning or neural network, such as input data having over-complicated dimension, and unable to execute in a dynamic environment. Therefore, it will be helpful if we combine dynamic data-driven concept with stacked auto-encoder neural network to obtain the dynamic data correlation or relationship between prediction results and actual data in a dynamic environment. This study applies the concept of dynamic data-driven to obtain the correlations between the prediction goals and numbers of different combination results. The methods of association analysis, sequence analysis, and stacked auto-encoder neural network are applied to design a dynamic data-driven system based on deep learning.
Dynamic fine-tuning stacked auto-encoder neural network for weather forecast
(2018-12-01)
Lin, Szu-Yin
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Chiang, Chi-Chun
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Li, Jung-Bin
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Hung, Zih-Siang
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Chao, Kuo-Ming
With the advent of the big data era, dynamic and real-time data have increased in both volume and variety. It is difficult to make accurate predictions regarding data as they undergo rapid and dynamic changes. Autonomous cloud computing aims to reduce the time required for traditional machine learning. The stacked auto-encoder is a neural network approach in machine learning for feature extraction. It attempts to model high-level abstractions and to reduce data dimensions by using multiple processing layers. However, some common issues may occur during the implementation of deep learning or neural network models, such as over-complicated dimensions of the input data and difficulty in processing dynamic data. Therefore, combining the concept of dynamic data-driven system with a stacked auto-encoder neural network will help obtain the dynamic data correlation or relationship between the prediction results and actual data in a dynamic environment. This study applies the concept of a dynamic data-driven system to obtain the correlations between the prediction goals and number of different combination results. Association analysis, sequence analysis, and stacked auto-encoder neural network are employed to design a dynamic data-driven system based on deep learning. (C) 2018 Elsevier B.V. All rights reserved.