recurrent neural network python

... the neural network 2.2 Neural Network In this subsection, text extraction from static image or video sequences is accomplished using the back-propagation (BP) algorithm on a neural network. ... Those features are used as the input of a neural network for training based on the back-propagation algorithm for neural networks. After the neural network is well trained, new input data will ... network. The training of the neural network is based on the features we obtain from the DWT detail component sub-bands. As shown in Figure 6, the proposed neural network architecture is simpler...

Ngày tải lên: 05/11/2012, 14:51

... Binarization result IV. CONCLUSION AND FUTURE WORKS A neural network based method is discussed in this paper. The features used for the neural network are not only the spatial characteristics but ... width and height, there are totally 14 features used for the neural network analysis. D. Contours classification using neural network We extract the above features which are helpful for classification ... Backpropagation neural network can handle any nonlinear relationship after training including the complicated inter- relationship between the features. Making use of neural networks will also...

Ngày tải lên: 05/11/2012, 14:54

Ngày tải lên: 05/09/2013, 14:58

Ngày tải lên: 12/09/2013, 16:20

... gọn như sau : Mạng nhiều lớp neuron CHƯƠNG 2 MÔ HÌNH MẠNG NEURAL NETWORKS Mô hình mạng Neural tổng quát có dạng như sau : Ngày nay mạng Neural có thể giải quyết nhiều vấn đề phức tạp đối với con ... định dạng của dữ liệu vào ảnh hưởng đến việc mô phỏng của mạng. Có hai loại mạng static network và dynamic network. Hai kiểu vector đầu vào cơ bản là kiểu xảy ra đồng thời (concurrently) và kiểu ... trong lớp a : vector ngõ ra của lớp neuron Hàm truyền Có rất nhiều hàm truyền áp dụng trong Neural Networks, trong đó ba hàm thường sử dụng nhất là Hard Limit, Linear, Log-Sigmoid. Tổng quát...

Ngày tải lên: 29/09/2013, 06:20

... một lớp ẩn và một lớp đầu ra (ouput). Chức năng chính của chương trình: - Xây dựng mạng Neural Networks và khởi tạo trọng số (Weight) một cách thường xuyên. - Phân tích ảnh điểm của những ... Tính toán lỗi (error), điểm ra (output) và trọng số (weight) thường xuyên. - Xây dựng mạng Neural Network. 1) Huấn luyện mạng Lưu đồ giải thuật huấn luyện mạng của chương trình: 2) Thực ... AI Lab http://ai.stanford.edu/~nilsson [4] Offline Handwring Recognition Using Artificial Neural Networks © 2000, Andrew T.Wilson University of Minnesota, Morris ...

Ngày tải lên: 06/10/2013, 20:20

... method for neural networks, in Neural Networks for Speeach and Image Processing, R.J. Mammone, Ed., Chapman & Hall, Boca Raton, FL, 1993. [10] A. Krogh and J. Vedelsby, Neural networks ensembles, ... three complementary parts: neural network fundamentals, neural network solutions to statistical signal processing problems, and signal processing applications using neural networks. In the first part, ... (LVQ) neural network. The above discussion is summarized in Table 1.5. TABLE 1.5 Pattern Classification Methods and Corresponding Neural Network Implementations Pattern Classification Methods Neural...

Ngày tải lên: 12/12/2013, 23:15

... a neural network with cyclic topology contains at least one cycle formed by directed arcs. Such a neural network is also known as a recurrent network. Due to the feedback loop, a recurrent network ... Artificial Neural Network (ANN) Models — An Overview 1.2.1 Basic Neural Network Components A neural network is a general mathematical computing paradigm that models the operations of bio- logical neural ... handbook — neural networks for signal processing. The chapter first discusses the definition of a neural network for signal processing and why it is important. It then surveys several modern neural network...

Ngày tải lên: 12/12/2013, 23:15

... computational performance and application domain for various neural network architectures. 4.2 Artificial Neural Networks Artificial neural networks have emerged in recent years as a major means ... CRC Press LLC 4 Neural Network Applications for Group Technology and Cellular Manufacturing 4.1 Introduction 4.2 Artificial Neural Networks 4.3 A Taxonomy of Neural Network Application for ... Deterministic neural network models do not have the capability to escape from local optimal solution. Stochastic neural network models attempt to avoid local optimal solutions. Stochastic neural network...

Ngày tải lên: 17/12/2013, 06:15

... types of neural networks included ART networks, Hopfield networks, and SOM neural networks. Weaknesses of neural networks for modeling and design of manufacturing systems result from neural networks ... parallel distributed fashion. Feedforward neural networks and recur- rent neural networks are two major classes of artificial neural networks. Feedforward neural networks, Jun Wang The Chinese University of ... feedforward neural networks. Recurrent neural networks, such as the Hopfield networks, are usually used as computational models for solving computationally intensive problems. Typical examples of recurrent...

Ngày tải lên: 17/12/2013, 06:15

... the neural network topology with the peripheral circuits to generate the PWM waves. It consists of a 1–24–12 network with sigmoidal activation function for middle and output layers. The network ... VOL. 38, NO. 3, MAY/JUNE 2002 Fig. 7. Feedforward neural- network (1–24–12)-based space-vector PWM controller. Fig. 8. Segmentation of neural network output for U -phase P states. and signals ... therefore, the SVM algorithm to be implemented in a neural network is considerably more complex. In the proposed scheme, a three-layer feedforward neural network receives the command voltage and angle...

Ngày tải lên: 22/12/2013, 08:16

... Various neural network based monitoring and control schemes. (a) A neural identifier combined with an adaptive controller. (b) A gain-tuning neural network controller. (c) A feedforward neural ... model process optimizer PI process neural model (a) The proposed synthesis scheme n F z F DD Ra neural network (b) The K-P network- based process model f d d DD Ra neural network (c) The MLP-based quality model v f ©2001 CRC Press ... and so on. To monitor TABLE 12.1 Types of Sensor Signals and Neural Networks in Monitoring Process Sensor Signal Neural Network Quality Variable Turning Force Diffraction image Perceptron Perceptron Surface...

Ngày tải lên: 25/12/2013, 19:15

Ngày tải lên: 29/12/2013, 11:17

... the neural network. The model in Figure 15.2(b) shows that the fuzzy system can be controlled by the neural network; the inference processing of the fuzzy system is responded to by the neural network. ... neural network is presented to describe the relationship between the tool wear conditions and the monitoring features. 15.2 Fuzzy Neural Network 15.2.1 Combination of Fuzzy System and Neural ... µ ∈ [0,1]. To test the fuzzy neural network (FNN), it is compared with the BP neural networks (BPNN) [22]. Under the same conditions (training sample, networks structure (5 × 5), learning...

Ngày tải lên: 23/01/2014, 01:20

... cryptography based on chaotic signal generator and a clipped neural network. Advances in Neural Networks-ISNN, Intl. Symp. Neural Networks Proc., Part II. Lecture Notes in Computer Science, ... Cheung and Z. Wang, 2004. A chaotic -neural- network- based encryption algorithm for JPEG2000 encoded images. Advances in Neural Networks, Intl. Symp. Neural Networks Proc., Part II, Lecture Notes ... artificial neural network outputs and decryption signals respectively. Fig. 5: Encrypted signal Fig. 6: Neural network output Fig. 7: Decrypted signal CONCLUSION As the computer network...

Ngày tải lên: 14/02/2014, 16:20

... Geophysical Research 90 (C5), 8995–9005. Yao, X., 1999. Evolving artificial neural networks. Proceedings of the IEEE Transactions on Neural Networks 87 (9), 1423–1447. ARTICLE IN PRESS H. Niska et al. / Engineering ... values is increased, enhancing the error term by using some regularization technique and recurrent neural networks, where the temporal patterns are better considered. Acknowledgements This research ... Arbor. Hornik, K., Stinchcombe, M., White, H., 1989. Multilayer feedfor- ward networks are universal approximators. Neural Networks 2, 359–366. Jain, A., Zongker, D., 1997. Feature selection: evaluation,...

Ngày tải lên: 17/02/2014, 22:20

Ngày tải lên: 19/02/2014, 09:20

Ngày tải lên: 17/03/2014, 04:20