incremental sigmoid belief networks

Ngày tải lên: 23/03/2014, 18:20

Ngày tải lên: 22/06/2014, 23:20

Ngày tải lên: 22/06/2014, 23:20

Ngày tải lên: 03/09/2012, 15:54

... GVHD : Ths Hoàng Đình Chiến Phần 3_Chương 1 : Tổng quan Neural Networks CHƯƠNG 1 TỔNG QUAN NEURAL NETWORKS 1. GIỚI THIỆU CHUNG eural Networks trong một vài năm trở lại đây đã được nhiều người quan ... và điều khiển, Neural Networks đều có thể ứng dụng được. Sự thành công nhanh chóng của mạng Neural Networks có thể là do một số nhân tố chính sau: N • Năng lực : Neural Networks là những kỹ thuật ... chiến lược tối ưu hóa được biết nhiều nhất. • Dễ sử dụng : Neural Networks có tính học theo các ví dụ. Người sử dụng Neural Networks thu thập các dữ liệu đặc trưng, và sau đó gọi các thuật toán...

Ngày tải lên: 03/09/2012, 15:54

Ngày tải lên: 03/09/2012, 15:55

... PC-DSP, ISBN 0-13-079542-9 [18] Bart Kosko, Neural Networks for Signal processing, ISBN 0-13-614694-5 [19] Tarun Khanna, Foundations of Neural Networks, ISBN 0-201-50036-1 [20] Matlab_The language ... Ứng dụng bộ cân bằng dùng Neural Networks triệt nhiễu giao thoa ký tựï trong hệ thống GSM [16] Edwin Johnes, Digital Transmision, ISBN...

Ngày tải lên: 03/09/2012, 15:55

Ngày tải lên: 03/09/2012, 15:59

... layer sigmoid, evaluated where we are operating on its curve. In other words, SLOPE O describes how much the output of the sigmoid changes in response to a change in the input to the sigmoid. ... 26-1 The sigmoid function. This is used in neural networks as a smooth threshold. This function is graphed in Fig. 26-7a. s (x) ' 1 1%e &x EQUATION 26-2 First derivative of the sigmoid ... of the sigmoid function itself. s N(x) ' s (x) [1 & s (x) ] Figure 26-7a shows a closer look at the sigmoid function, mathematically described by the equation: The exact shape of the sigmoid...

Ngày tải lên: 13/09/2012, 09:50

... cellular networks [20–22], which targets the market of 2010 and beyond. The unified platform envi- sioned for 4G wireless networks will provide transparent integration with the wired networks and ... and wireless networks. The goal of 3G wireless networks is to provide efficient support for both voice and high bit-rate data services (ranging from 144 kbps Introduction to Wireless Networks 17 432 ... connection. 1.3.10 Chapter 11: Personal Area Networks (PANS) Chapter 11 describes Personal Area Networks (PANs). The concept of a PAN differs from that of other types of data networks in terms of size, performance...

Ngày tải lên: 13/09/2012, 10:21

... using SIR • Then they shift to FIR speed Wireless Communications Low Rate Wireless Personal Area Networks 2 Objectives • Describe a wireless personal area network (WPAN) • List the different WPAN...

Ngày tải lên: 13/09/2012, 10:52

... plans – Works in the same ISM band as 802.11b WLANs • 802.15.3 supports peer-to-peer or ad hoc networks • 802.15.3 piconets support child and neighbor piconets Wireless# Guide to Wireless Communications ... Functionality (continued) Wireless Communications Chapter 6 High Rate Wireless Personal Area Networks Wireless# Guide to Wireless Communications 36 Competition Among WPAN Standards • IEEE 802.15.3...

Ngày tải lên: 13/09/2012, 10:52

... motherboard 3 WLAN Applications • Wireless networks are increasing in popularity • Installing cabling is inconvenient and very expensive – Wireless networks solve this problem • With a wireless ... port • AP functions – Wireless communications base station – Bridge between the wireless and wired networks 6 Wireless Network Interface Card (continued) 5 Wireless Network Interface Card • Network ... wireless clients can only communicate among themselves Wireless Communications Wireless Local Area Networks 4 WLAN Components • Minimal hardware needed for a WLAN – Computer – ISP – Wireless network...

Ngày tải lên: 13/09/2012, 10:52

... measured in miles • Cellular phone operators can easily incorporate WiMAX networks 3 What is a WMAN? • Wireless metropolitan area networks (WMANs) – Provide wireless connectivity across a substantial ... atmospheric turbulence 18 IEEE 802.16 (WiMAX) • Standard for wireless broadband metropolitan area networks • 802.16 supports enhancements and extensions to the MAC protocols – Base station (BS) ... radius of up to 35 miles (56 kilometers) 2 Objectives • Explain why wireless metropolitan area networks (WMANs) are needed • Describe the components and modes of operation of a WMAN • List...

Ngày tải lên: 13/09/2012, 10:52

... Generation (2.5G) – Interim step between 2G and 3G – Operates at a maximum speed of 384 Kbps – 2.5G networks are packet-switched – Advantages of packet switching • Much more efficient – Can handle ... Mbps for a stationary user • 3G network technologies – CDMA2000 1xEVDO • For 2.5G CDMA2000 1xRTT networks 25 Binary Runtime Environment for Wireless (BREW) • BREW is a thin software environment – Very ... point-to-multipoint, and multipoint-to- multipoint 5 How Cellular Telephony Works • Keys to cellular telephone networks – Cells • City cells measure approximately 10 square miles • At the center of each cell...

Ngày tải lên: 13/09/2012, 10:52

... consistent for access to both networks, i.e. the same access procedures for both networks and preferably the same user identity number for users to obtain access to both networks. 2. Ubiquitous service ... GSM network. 7.2 Integration with PSTN 7.2.1 Introduction Mobile satellite networks are required to interwork with both fixed and mobile networks, including PSTN and GSM. Due to different national PSTN ... of ITU-T Signalling System No. 7 (SSN7) both within national networks and at the international interconnection point between national networks. This is achieved using SSN7 signalling at the international...

Ngày tải lên: 14/09/2012, 11:26

... many public telephone networks, as MSCs. SIEMENS with its EWSD technology and ALCATEL with the S12 and the E10 are well-known examples that benefit from such synergy. 34 GSM Networks: Protocols, ... to the MSCs for which the VLR provides its services. 6 GSM Networks: Protocols, Terminology, and Implementation TRAU MSC HLR VLR GSM Networks: Protocols, Terminology, and Implementation type identifier. ... the behavior of handover as a customer would experience it. 18 GSM Networks: Protocols, Terminology, and Implementation 12 GSM Networks: Protocols, Terminology, and Implementation ISUP / IAM Initial...

Ngày tải lên: 15/09/2012, 10:04

... đây là bài dịch chương II trong sách “Principles of Digital Communication Systems and Computer Networks của nhóm em. Phần I – Các hệ thống truyền thông số (Digital Communation System) Chương...

Ngày tải lên: 18/09/2012, 10:13