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研究生： 林秀菊
Shiow-Jyu Lin
論文名稱： 以GHA實現快速主成分分析之硬體設計
Hardware Design of Fast Principal Component Analysis Using Generalized Hebbian Algorithm
指導教授： 黃文吉
Hwang, Wen-Jyi
學位類別： 博士
Doctor
系所名稱： 資訊工程學系
Department of Computer Science and Information Engineering
論文出版年： 2012
畢業學年度： 100
語文別： 英文
論文頁數： 96
中文關鍵詞： 主成分分析 、區塊計算 、場規劃閘陣列 、可程式系統晶片
英文關鍵詞： PCA, Generalized Hebbian Algorithm (GHA), block-wise computation, FPGA, SOPC
論文種類： 學術論文
相關次數： 點閱：161  下載：0 
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    • 本論文為實現快速主成分分析之硬體，提出三種GHA的硬體架構，分別為達成高速計算及最少的硬體資源消耗為目的。在高速計算的架構，所有主成分值計算與突觸權重值之更新，皆使用專屬的電路作並行之運算。對於高維度訓練資料之適用架構，以所有主成分值計算共用一個主成分計算電路輪流完成計算，並將訓練資料區塊化方式逐步更新每個神經元的突觸權重值。所有實現的硬體架構訓練取得之權重向量，應用在紋理的分類。

    This dissertation proposes three types of GHA architectures, achieving the aims of high speed computation and low area costs, for fast principal component analysis. In the architecture with high speed computation, all principal components computation and synaptic weight vectors updating are operated concurrently in individual dedicated circuits. In the architectures with high-dimensional training vector, all principal components can be sequentially computed by a single circuit. Meanwhile, each synaptic weight vector is updated block by block in fixed number of synaptic weight updating modules. To demonstrate the effectiveness of the proposed architectures, texture classification will be adopted.

    中文摘要 i Abstract ii 誌 謝 iii Contents v List of Figures vii List of Tables xi Chapter 1 Introduction 1 1.1 Introduction and Literature Review 1 1.2 Overview of Proposed Architectures 4 1.3 Organization of the Dissertation 7 Chapter 2 Neural Network Model 8 2.1 Principal Components Analysis 8 2.2 Hebbian-Based Maximum Eigenfilter 11 2.3 Generalized Hebbian Algorithm 15 Chapter 3 Basic GHA Architectures 17 3.1 The Direct GHA Implementation 17 3.1.1 The Basic Building Blocks of the GHA Architecture 18 3.1.2 The Direct Implementation 20 3.1.3 The Direct Implementation of PCC Unit 22 3.1.4 Reducing the Area Costs for SWU and PCC Implementations 23 3.2 GHA Architecture I 26 3.2.1 Definition of Area Complexities and Latency of the Basic GHA 26 3.2.2 Synaptic Weight Updating Unit of Architecture I 27 3.2.3 Principal Components Computing Unit of Architecture I 30 3.2.4 Memory Unit of Architecture I 34 3.2.5 Analysis of the Area Complexities and Latency of Architecture I 35 3.3 Experimental Results 37 3.3.1 SOPC-Based GHA Training Platform 37 3.3.2 Texture Classification Application System 38 3.3.3 Experimental Results 40 Chapter 4 GHA Architecture II 47 4.1 Architecture II 47 4.1.1 SWU Unit 47 4.1.2 Memory Unit 54 4.1.3 PCC Unit 56 4.2 Experimental Results 58 Chapter 5 GHA Architecture III 65 5.1 Architecture III 65 5.1.1 SWU Unit 65 5.1.2 PCC Unit 69 5.1.3 Memory Unit 71 5.2 Experimental Results 78 Chapter 6 Conclusion and Future Works 88 6.1 Concluding Remarks 88 6.2 Future Works 90 Bibliography 91 Publication List 94

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