multiple base notational system

... VÀ ĐÀO TẠO TRƯỜNG…………… LUẬN VĂN Kỹ thuật giấu tin trong ảnh dựa trên MBNS (Multiple base notational system) 24 3.3.2. Các bước thực hiện Bước 1: Tính độ lệch chuẩn . Tính...

Ngày tải lên: 17/03/2014, 21:20

... the AF MIMO relaying system with multiple users. It cor- responds to the case where one base station communicates with multiple terminals via one relay station. In this system, the source precoder, ... solution for point-to-point MIMO systems based on weighted MSE criterion [23]. 5 Relay station Base station Mobile terminals Figure 1.4 Multi-user AF MIMO relay system. help of a relay station. ... relay system. transceiver design for conventional MIMO systems has been extensively studied in various scenarios in the past decade [23–26]. 1.1.3 AF MIMO Relay Systems The benefits of multiple- antenna...

Ngày tải lên: 20/11/2012, 11:31

... 1 Spec Sheet FlexWave ™ Base Station System IP-Based RAN for Indoor/Outdoor Coverage and Capacity The FlexWave ™ Base Station System (BSS) is a complete base station system providing converged ... SGSN (4 E1/T1) CORBA-based to O&M to OMC-R STANDARDS CE and FCC approved 4 / 0 7 • 1 0 4 6 2 5 A E FlexWave ™ Base Station System FlexWave ™ Base Station System IP-Based RAN for Indoor/Outdoor ... 4 / 0 7 • 1 0 4 6 2 5 A E FlexWave ™ Base Station System FlexWave ™ Base Station System IP-Based RAN for Indoor/Outdoor Coverage and Capacity 3 w w w . a d c ....

Ngày tải lên: 18/10/2013, 19:15

... stream . . 1 2 M T . . . 1 2 M R . . . . . channel  Use multiple transmit and multiple receive antennas for a single user  Now this system promises enormous data rates! Types of Channels Multiple- Input -Multiple- Output (MIMO) Systems Basic ... “MIMO-OFDM Systems for High Data Rate Wireless Networks”, Whu Topics  Motivations for the development of MIMO systems  MIMO System Model and Capacity Studies  Design Criterion for MIMO Systems ... of Ad Hoc Networks Using Multiple Antennas”, Park, Choi and Nettles, submitted Mobicom 2004 (4) “From Theory to Practice: An Overview of MIMO Space-Time Coded Wireless Systems”, Gesbert et al.,IEEE...

Ngày tải lên: 27/01/2014, 15:20

... system 49.1 38.2 39.6 best single system 41.0 30.2 47.7 consensus of 4 systems 39.1 29.1 49.3 + rescoring 38.8 29.0 50.7 2005 evaluation, see Table 3. Compared to the best performing single system, ... BLEU Chinese-English [%] [%] [%] worst single system ’04 58.3 46.6 34.6 best single system ∗ ’04 54.6 42.6 40.3 consensus of 5 systems from 2004 47.8 38.0 46.2 system (*) in 2005 50.3 40.5 45.1 ish to ... statistical ma- chine translation (SMT) systems are not normal- ized and therefore not directly comparable. For some other MT systems (e.g. knowledge-based systems), the lattices and/or scores of...

Ngày tải lên: 22/02/2014, 02:20

Ngày tải lên: 21/06/2014, 17:20

Ngày tải lên: 22/06/2014, 01:20

Ngày tải lên: 23/06/2014, 01:20

... Knowledge Base System Basic Knowledge CHAPTER 4 – SYSTEM DESIGN 4.1 DATABASE DESIGN 4.1.1 Database Normalization Before starting normalization, we ... user Typical objects of the system are described in the following figure: Figure 1.5.2 – Mechanism of Knowledge Base System HUT – Genetic Computer School Page 10 Knowledge Base System Basic Knowledge ... Form HUT – Genetic Computer School Page50 Knowledge Base System Basic Knowledge 3.3 DATA FLOW DIAGRAMS 3.3.1 Level 0 DFD for Knowledge Base System Students Lecturers Administrator Member management Member...

Ngày tải lên: 08/10/2012, 15:10

... below, shows a smart antenna system with multiple antennas at one end of the link. These systems are also known as SIMO (single-input multiple output). Originally multiple antennas were placed ... in radar and sonar systems. Using multiple antennas introduces spatial diversity into the system. These antennas are also known as ‘smart antennas’. Spatial diversity is based upon the fact ... modifiable file, base_ stations.res’, in the following format. 3 -Number of base stations 30.0 10.0 4.0 - Location of 1 st base station 30.2 10.0 4.0 - Location of 2 nd base station The...

Ngày tải lên: 20/11/2012, 11:36

... Genetic Computer School Page28 Knowledge Base System User Guide 1.6 DATABASE DESIGN 1.6.1 Normalized Forms Normalized database of the Knowledge Base System has six tables in 3NF: User Table, Category ... Genetic Computer School Page50 Knowledge Base System User Guide Add new article type Add new category HUT – Genetic Computer School Page42 Knowledge Base System User Guide Category Record Field ... Knowledge Base System User Guide HUT – Genetic Computer School Page35 Knowledge Base System User Guide Logon Begin End Valid username/ password Administrator...

Ngày tải lên: 09/12/2013, 18:15

Ngày tải lên: 03/01/2014, 19:36

Ngày tải lên: 19/02/2014, 14:20

... clear. Our system makes asking backs by showing them on a display, and users respond them by selecting the displayed buttons by mouses. Initially, we developed the system as a keyboard based Q-A system, ... dialog Q-A system which substitute for call centers, based on only large text knowledge base. If we consult a call center, an operator will help us through a dialog. The substitutable system also needs ... for significant parts based on confidence in recognition. After that, the system retrieves relevant texts in the text knowledge base using each candidate, and makes confirmation based on significance...

Ngày tải lên: 20/02/2014, 16:20

... PARALLEL MULTIPLE CONTEXT-FREE GRAMMARS, FINITE-STATE TRANSLATION SYSTEMS, AND POLYNOMIAL-TIME RECOGNIZABLE SUBCLASSES OF LEXICAL-FUNCTIONAL ... languages. Among them are parallel multiple context-free grammars (pmcfg's) and lexical-functional gram- mars (lfg's). Pmcfg's and their subclass called multiple context-free grammars ... the gen- erative capacities of such grammars and devices. Parallel multiple context-free grammars (pm- cfg's) and multiple context-free grammars (mcfg's) were introduced in (Kasami...

Ngày tải lên: 08/03/2014, 07:20

... failures" 119, "nothing in data base& quot; 61, "program error" 39, but this only points to the general difficul- ties of comparisons of system performance. SOME CONCLUSIONS ... as loading cargo items, the percentage of task completion may signal both system performance and user satisfaction. System response times are a very important measure. The ques- tionnaire method ... performance with respect Co a given task. 41 EVALUATION OF NATURAL LANGUAGE INTERFACES TO DATA BASE SYSTEMS Bozena Henisz Thompson California Institute of Technology INTEODUCT~ON Is evaluation,...

Ngày tải lên: 17/03/2014, 19:20

... knowledge base for a natural lan- guage system, which constitutes a manageable and princi- pled midway point between these simple knowledge bases and the impossibly detailed knowledge bases that ... sophisticated natural language sys- tem must have a large knowledge base. But heretofore, the knowledge bases in natural language systems have either encoded only a few kinds of knowledge - e.g., ... sophisticated natural language system requires a large knowledge base. A methodology is described for con- structing one in a principled way. Facts are selected for the knowledge base by determining...

Ngày tải lên: 17/03/2014, 19:21

Ngày tải lên: 24/03/2014, 05:21