使用多對一遞歸神經網絡和加速點挖掘對使用者興趣點移動預測

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研究生：	鄭盟勳 Cheng, Meng-Shiun
論文名稱：	使用多對一遞歸神經網絡和加速點挖掘對使用者興趣點移動預測 Mobility Prediction at Points of Interest Using Many-to-One Recurrent Neural Network and Acceleration Points Mining
指導教授：	許健平 Sheu, Jang-Ping
口試委員:	沈之涯 Shen, Chih-Ya 洪樂文 Hong, Yao-Win 王志宇 Wang, Chih-Yu
學位類別：	碩士 Master
系所名稱：
論文出版年：	2018
畢業學年度：	106
語文別：	英文
論文頁數：	34
中文關鍵詞：	數據挖掘、移動性預測、回歸神經網絡、長期短期記憶
外文關鍵詞：	Mobility_prediction, RNN, LSTM, Data_mining
相關次數：	點閱：2 下載：0
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隨著基於位置的服務的出現，用戶移動預測已成為許多應用程序的關鍵驅動
因素。在本文中，我們提出了一種具有多對一遞歸神經網絡和加速點挖掘
（MRAPM）的移動預測框架。首先，我們透過提出的POI 挖掘方法- Acceleration
Clustering，從用戶的移動數據中提取用戶經常訪問的地方（Points of interest,
POIs）。然後，我們提出了自適應映射方法來將用戶的軌跡映射到一POI 序列。
接下來，我們使用具有長期短期記憶（Long Short-Term Memory, LSTM）和兩個
輸出層的遞歸神經網絡（Recurrent Neural Network, RNN）來學習用戶的POI 序
列。最後，我們用兩個不同的真實數據集評估預測性能。我們還將MRAPM 與
其他預測框架進行比較，並驗證MRAPM 比以前的作品具有更好的預測準確性。

With the emergence of location-based services, user mobility prediction has become a key driver for many applications. In this paper, we propose a mobility prediction framework with Many-to-one Recurrent neural network and Acceleration Points Mining (MRAPM). First, we extract the place where the user frequently visited (points of interest, POIs) from the user's mobility data through the proposed POI mining method– Acceleration Clustering. Then, we proposed the Adaptive Mapping method to map the user’s trajectory to a series of POIs. Afterward, we use the Recurrent Neural Network (RNN) with Long Short-Term Memory (LSTM) and two output layers to learn the user's POI series. Finally, we evaluate the prediction performance with two different real datasets. We also compare the MRAPM with other prediction frameworks and verify that the MRAPM has better prediction accuracy than previous works.

I. Introduction ........................................................................................................ 1
II. Related Work ...................................................................................................... 4
2.1 POIs Identification ........................................................................................ 4
2.2 Mobility Prediction ........................................................................................ 5
III. Many-to-one Recurrent Neural Network and Acceleration Points Mining
(MRAPM) .......................................................................................................... 9
3.1 Preprocess user’s mobility data ..................................................................... 9
3.2 Find Out the POIs of the User ..................................................................... 10
3.3 Calculate the POI Series of the User ........................................................... 14
3.4 Predictor Training ........................................................................................ 15
3.4.1 Training Data Generator ....................................................................... 16
3.4.2 Data Standardizing ............................................................................... 17
3.4.3 Predictor Designing .............................................................................. 17
IV. Performance Evaluation .................................................................................... 20
4.1 Experiment Definition ................................................................................. 20
4.2 Other Mobility Prediction Frameworks Implementation ............................ 21
4.3 Environment ................................................................................................ 23
4.4 Results ......................................................................................................... 23
V. Conclusion ....................................................................................................... 31
References .................................................................................................................... 32
                                

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