cognitive systems and intelligent technologies

Ngày tải lên: 17/03/2014, 18:21

Ngày tải lên: 19/03/2014, 13:32

Ngày tải lên: 20/06/2014, 20:20

Ngày tải lên: 21/06/2014, 23:20

... MSSV:08520470 Sau 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 ... entropy là H = 4.07 bit/ký hiệu Lưu ý: Hãy xem xét câu sau: "I do not knw wheter this is undrstandble." Mặc dù thực tế là một số chữ cái là mất tích trong câu này nhưng bạn vẫn có thể làm...

Ngày tải lên: 18/09/2012, 10:13

... OFDM systems over time varying and frequency dispersive fading channels. With the increasing number of mobile phone users and higher demands for wireless services, future communication systems ... estimation for OFDM systems For wide-band wireless communication systems, the channel is time varying and dispersive fading, which will distort the transmitted signal. Thus, the accurate and real-time ... locating, and tracking applications. The concept of cognitive radio was first proposed by Dr. J. Mitola and Prof. G. Q. Maguire [4] in 1999 and was an extension to the concept of software radio. Cognitive...

Ngày tải lên: 20/11/2012, 11:28

... wireless systems, the telecommunications scene and the services offered by 4G and future systems are not known yet and as a result aims for these systems may change over time. However, as 3G systems ... communication and intelligent shopping will be enabled by 4G and future systems. † The challenge of predicting the future of wireless systems. The exact state of 4G and future systems cannot ... 2010 and beyond, there is time for 4G research and standards development. So far, no 4G standard has been defined and only speculations have been made regarding the structure and operation of 4G systems. ...

Ngày tải lên: 29/09/2013, 21:20

... file systems across a network. We’lllook at it in Chapter 25. • FreeBSD supports a number of file systems from other popular operating systems. Youmount the file systems with the mount command and ... groups of rwx: r stands for read permission, w stands for write permission, and x stands for execute permission. The three groups represent the permissions for the owner,the group and others respectively.Ifthe permission ... of file system. Local file systems on hard disk are always ufs ,and file systems on CD-ROM are cd9660.Remote file systems are always nfs.Specify swap partitions with swap ,and the proc file system with...

Ngày tải lên: 22/10/2013, 19:15

... Chaos Figure 1.2-7 Julia Propeller. Dynamical Systems and 2.1-2 Development of the disease for 0.3 and k = 0.5. Figure 2.1-3 Development of the disease for = 0.3 and k = 1 .O. In order to get a feeling ... appropriate graphics commands included. and Button are machine-specific procedures. In and are system procedures. This is the case for Turbo Pascal on MS-DOS machines and for UCSD Pascal (see ... rapidly, the larger is. 10 Dynamical Systems and Figure 1.2-4 Tornado Convention.2 picture was christened by Prof. K. Kenkel of Dartmouth College. 18 Dynamical Systems and Fractals 2.1 First Experiments One...

Ngày tải lên: 26/10/2013, 17:15

Ngày tải lên: 04/11/2013, 20:15

Ngày tải lên: 09/11/2013, 05:15

Ngày tải lên: 09/11/2013, 05:15

... Specify orientation of a figure 8 Signals and Systems Commands The following commands are organized by topics in signals and systems. Each of these commands has a number of options that extend ... commands 11 7.2 Customization of plots . 11 8 Signals and Systems Commands 11 8.1 Polynomials . . . 11 8.2 Laplace and Z Transforms 12 8.3Frequency responses . . 13 8.4 Fourier transforms and ... command 1; MATLAB command 2; MATLAB command 3; The name of the m-file for this function is functionname.m and it is called from the MATLAB command line or from another m-file by the following command >>...

Ngày tải lên: 12/12/2013, 07:15

... this view have already been built and are described in Rich Sidner and Lesh (2001), Babaian, Grosz and Shieber (2002), Ryall, Marks and Shieber (1997), and Ortiz and Grosz (2002). Theories of collaboration ... analysis and design of organizations in multi-agent systems. ICMAS-98, Paris, France, 128-135. Fox, M. S. (1981). An organizational view of distributed systems. IEEE Transac- tion on Systems, Man and ... modeling. Sen, Dutta, and Mukherjee (2000) proposed an intelligent buyer agent which aims to educate the user to be a more informed customer by understanding the user query and providing alternatives...

Ngày tải lên: 13/12/2013, 01:15

... Framework Using CORBA, Mobile Agents and Web-Based Technologies 298 Dongming Cui, The University of Auckland, New Zealand Jairo A. Gutiérrez, The University of Auckland, New Zealand About the Authors 310 Index ... relationship between organization theory and distributed systems, and argued that by viewing distributed systems as analogues to human organizations, concepts and theories germane to the manage- ment ... large and complex information system rapidly and effectively. And the key issue in research is how to organize the local agents and problem solving within the network, so that in the fixed period and...

Ngày tải lên: 13/12/2013, 01:15

Ngày tải lên: 13/12/2013, 01:16

... databases, source code or docu- ment repositories, file systems etc. Its methods for content and structure management and, also, for security and locking are wrapped with MECASP RM functionality. Fig. ... algorithm for the semantic interpretation of the change (standard and non-standard) actions. Also, a MECASP specific delta representation and proc- essing have been implemented in order to maintain ... applications and resources, subject to maintenance and adaptation (i.e creation and management of their versions). The implementation of the MECASP repository manager raises many problems and requires...

Ngày tải lên: 14/12/2013, 15:16

... a set of candidate ID mappings C = {m 1 , ,m n } and a weight function w :2 I×I → Q + . Goal: find I ⊆ C such that I is an ID set and there is no I  ⊆ C such that I  is an ID set and  m i ∈I  w(m i ) ... Querying and Navigation 153 strings x = x 1 , ,x n and y = y 1 , ,y m with n ≤ m. The string x is sequence- included in the string y if the l.c.s. of x and y is x. Note that sequence-inclusion and ... using the containment join (ContainingP arent and ContainedChild). For queries with n = 1, step 4, for the signature based query plan, and steps 6 and 7, for the containment join based query plan,...

Ngày tải lên: 14/12/2013, 15:16

... First Course in Database Systems with the title Principles of Database and Knowledge − Base Systems, – replace the string Principles of Database and Knowledge − Base Systems with the title A ... Gergatsoulis and Y. Stavrakas 7. M. Gergatsoulis, Y. Stavrakas, and D. Karteris. Incorporating Dimensions to XML and DTD. In H. C. Mayr, J. Lanzanski, G. Quirchmayr, and P. Vogel, editors, Database and ... and retrieving MXML doc- uments and the incorporation of contexts in XPath and XQuery is in our imme- diate plans for future work. References 1. S. Abiteboul, D. Quass, J. McHugh, J. Widom, and...

Ngày tải lên: 14/12/2013, 15:16