responsibilities of data link layer in internet model
Tài liệu Module 7- Data Link Layer CCNA Exploration 4.0 pptx
Ngày tải lên :
22/12/2013, 13:17
... www.bkacad.com
Overview
Upon completion of this chapter, you will be able to:
• Explain the role of Data Link layer protocols in data transmission.
• Describe how the Data Link layer prepares data for transmission ... consists of virtual connections between the
nodes of a network independent of their physical layout.
– These logical signal paths are defined by Data Link layer
protocols.
• The Data Link layer ... Data Link Layer Protocols- The Frame
31
• Remember that although there are many different Data Link layer protocols that describe
Data Link layer frames, each frame...
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Intelligent Software Agents on the Internet: an inventory of currently offered functionality in the information society & a prediction of (near-)future developments
Ngày tải lên :
08/10/2012, 15:22
... introductory information about the Internet 94
Introduction 94
Introduction 94
Internet Services offered 94
Internet Services offered 94
Appendix 3 - Internet Growth Figures 97
Intelligent Software ... 64
Intelligent Software Agents on the Internet
2
PART ONE - Theoretical and
Practical Aspects of Agents
and the Prospects of Agents
in a Three Layer Model
Intelligent Software Agents in Practise
to ... picture of the
size of the Internet, let alone to
make an estimation of the amount
of information that is available on
or through it;
• The dynamic nature of the
information on Internet:
information...
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Tài liệu overview of data modeling and database design pptx
Ngày tải lên :
10/12/2013, 17:15
... course description.
Overview of Data Modeling and Database Design 8Ć9
Database Design
Designing a relational database system involves converting a model into a workable
software representation. The ... is the amount of space required to store the
data of a table in the database.
D
Redefine integrity constraints.
For more information, see
Develop Complex Data Models and Design Databases course ... attribute.
Overview of Data Modeling and Database Design 8Ć29
Designing the Database
The database design stage produces design specifications for a relational database,
including definitions for relational...
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Tài liệu Modeling of Data part 1 pptx
Ngày tải lên :
15/12/2013, 04:15
...
Permission is granted for internet users to make one paper copy for their own personal use. Further reproduction, or any copying of machine-
readable files (including this one) to any servercomputer, ... graph of data and model “looks good.” This
approach is known as chi-by-eye. Luckily, its practitioners get what they deserve.
CITED REFERENCES AND FURTHER READING:
Bevington, P.R. 1969,
Data Reduction ... general principles is it based on? The answer
to these questions takes us into the subject of maximum likelihood estimators.
Given a particular data set of x
i
’s and y
i
’s, we have the intuitive...
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Tài liệu Modeling of Data part 2 doc
Ngày tải lên :
15/12/2013, 04:15
... [1]
15.2 Fitting Data to a Straight Line
A concrete example will make the considerations of the previous section more
meaningful. We consider the problem of fitting a set of N data points (x
i
,y
i
)to
a ... that the model does fit well, then we can proceed by first assigning an arbitrary
constant σ to all points, next fitting for the model parameters by minimizing χ
2
,
and finally recomputing
σ
2
=
N
i=1
[y
i
− ... Recipes Software.
Permission is granted for internet users to make one paper copy for their own personal use. Further reproduction, or any copying of machine-
readable files (including this...
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Tài liệu Modeling of Data part 3 docx
Ngày tải lên :
15/12/2013, 04:15
... [1]
15.2 Fitting Data to a Straight Line
A concrete example will make the considerations of the previous section more
meaningful. We consider the problem of fitting a set of N data points (x
i
,y
i
)to
a ... ith point. The
weighted sum of variances in the denominator of equation (15.3.2) can be understood both
as the variance in the direction of the smallest χ
2
between each data point and the line ... *chi2, float *q)
Given a set of data points
x[1 ndata]
,
y[1 ndata]
with individual standard deviations
sig[1 ndata]
, fit them to a straight line y = a + bx by minimizing χ
2
. Returned are
a,b
and...
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Tài liệu Modeling of Data part 4 pptx
Ngày tải lên :
15/12/2013, 04:15
... ith point. The
weighted sum of variances in the denominator of equation (15.3.2) can be understood both
as the variance in the direction of the smallest χ
2
between each data point and the line ... ensure
that the minimum with respect to b is also minimized with respect to a.
668
Chapter 15. Modeling of Data
Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5)
Copyright ... Recipes Software.
Permission is granted for internet users to make one paper copy for their own personal use. Further reproduction, or any copying of machine-
readable files (including this...
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Tài liệu Modeling of Data part 5 doc
Ngày tải lên :
15/12/2013, 04:15
... learn more about identifying and treating such cases
in §15.6. In the following routine, the point at which this kind of editing would
occur is indicated.
Generallyspeaking, werecommend that youalwaysuseSVD ... float sig[], int ndata, float a[], int ma,
float **u, float **v, float w[], float *chisq,
void (*funcs)(float, float [], int))
Given a set of data points
x[1 ndata]
,
y[1 ndata]
with individual ... can
save a factor of 3 on the linear algebra by switching to LU decomposition, without
674
Chapter 15. Modeling of Data
Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN...
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Tài liệu Modeling Of Data part 6 pdf
Ngày tải lên :
15/12/2013, 04:15
... over i.
Inclusion of the second-derivative term can in fact be destabilizing if the model
fits badly or is contaminated by outlier points that are unlikely to be offset by
compensating points of opposite ... covsrt(float **covar, int ma, int ia[], int mfit);
void gaussj(float **a, int n, float **b, int m);
void mrqcof(float x[], float y[], float sig[], int ndata, float a[],
int ia[], int ma, float **alpha, ... [], int), float *alamda)
Levenberg-Marquardt method, attempting to reduce the value χ
2
of a fit between a set of data
points
x[1 ndata]
,
y[1 ndata]
with individual standard deviations
sig[1 ndata]
,
and...
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Tài liệu Modeling Of Data part 7 pptx
Ngày tải lên :
15/12/2013, 04:15
... find some way of estimating or approximating
the probability distributionof a
(i)
−a
true
without knowing a
true
and withouthaving
available to us an in nite universe of hypothetical data sets.
Monte ... a minimum at a
(0)
. Call this minimum value χ
2
min
.If
696
Chapter 15. Modeling of Data
Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5)
Copyright ... departures for all data points, or else fractionally large departures for a small
number of data points. It is the latter interpretation, leading to the notion of outlier
points, that is generally...
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Tài liệu Modeling Of Data part 8 pptx
Ngày tải lên :
15/12/2013, 04:15
... thus obtained
are then used as starting values in amoeba, now using the robust choice of ρ and
minimizing the expression (15.7.3).
Fitting a Line by Minimizing Absolute Deviation
Occasionally ... Such discontinuities frequently wreak havoc on both general
nonlinear equation solvers and general function minimizing routines. You might
now think of rejecting (15.7.8) in favor of (15.7.10), ... departures for all data points, or else fractionally large departures for a small
number of data points. It is the latter interpretation, leading to the notion of outlier
points, that is generally...
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Tài liệu overview of data modeling and database design pdf
Ngày tải lên :
21/12/2013, 06:17
... indicating “must be.”
Crow’s foot Degree element indicating “one or more.”
Single line Degree element indicating “one and only one.”
Overview of Data Modeling and Database Design 8Ć27
Integrity ... Values in the column must match the defined
datatype.
User-defined Values must comply with the business rules.
Examples of UserĆDefined Data Integrity Constraints
D
An employee in the finance ... degree.
Overview of Data Modeling and Database Design 8Ć29
Designing the Database
The database design stage produces design specifications for a relational database,
including definitions for relational...
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Tài liệu ELECTRICAL /DATA CABLING WORKS IN THE BRANCH OF BANK OF INDIA, BHULLAR , LUDHIANA. doc
Ngày tải lên :
16/02/2014, 11:20
... and the tender in original along with
earnest money for Rs. 10,000/= in shape of demand draft in favour of Bank of
India, shall be submitted in the office of Zonal Manager, Zonal office, Ludhiana. ... MBPS of D Link make
Each 1
3.
Supply and installation of 24 port jack panel
of D -link make
Each 1
4.
Supply & installation of 60 pole mounted
rack 18” height made of power ...
1.8
Leased/ISDN line Cable from Router to Outer Pole of
BSNL
R.M
13
0
2.
ELECTRICAL POINTS
Providing fixing and testing of electrical p
oints
including wiring, plate type switches,...
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Tài liệu Báo cáo khoa học: Models and mechanisms of O-O bond activation by cytochrome P450 A critical assessment of the potential role of multiple active intermediates in oxidative catalysis doc
Ngày tải lên :
19/02/2014, 16:20
... family of thiolate-ligated
constitutive or inducible hemoprotein isoforms [281],
exhibiting insign ificant sequence identity with P450s in
the heme-binding region [282], but bearing a C-terminal
flavoprotein ... B. (1994) The pteridine b inding site of brain nitric oxide
synthase. Tetrahydrobiopterin binding k inetics, specificity, and
allosteric interaction w ith the substrate d omain. J. Biol. Chem.
269, ... primary N-hydroxylation o f one of the two
equivalent guanidino nitrogens of arginine [281]. While
L
-arginine and the homo-
L
-arginine derivative have been
originally thought to be the only true...
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Tài liệu Master Thesis Health Sciences: Expert Elicitation to Populate Early Health Economic Models of Medical Diagnostic Devices in Development pdf
Ngày tải lên :
20/02/2014, 16:20
... face-to-face interview of 30 to 45
minutes in which the same data of PAM II was presented for each individual radiologist. First the
medical device, PAM, was introduced. Then uncertainty of obtaining information ... important in the examination of
images of breasts, this results in higher performance of PAM.
Using expert elicitation in the absence of clinical data, prior distributions of the range of sensitivity ... are in conflict with the results obtained in the study of Hilgerink et al. However,
in this study only the diagnostic performance of PAM II was determined, where in the study of
Hilgerink et...
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