Mpeg 7 audio and beyond audio content indexing and retrieval phần 4 potx
Mpeg 7 audio and beyond audio content indexing and retrieval phần 4 potx
... Number of states
45 678
Left–right HMM 77 375 978 178 877 5
Forward and backward HMM 61 878 173 76 77 59
Ergodic HMM 58 675 5801 84 3819
corresponding classification accuracy is 84. 3%. Three iterations ... methods Feature dimension
71 323
PCA-ASP 829902950
ICA-ASP 81 79 15 94 6
NMF-ASP 74 577 278 6
MFCC 905932 94 2
NMF-ASP: MPEG- 7 ASP based on NMF basi...
How to compete and grow a sector guide to policy phần 4 potx
... 2005
Employment
Hours worked per capita
10 11 12 13 14 15 16 17 18 19 20 21 22 23 246 7
Labor productivity
1
Value added ($ per hour worked)
0
100
40
50
9
60
70
80
90
0 8
Japan
United Kingdom
United
States
Sweden
France
Germany
South ...
0
5
10
15
20
25
30
35
40
45
50
55
45 4035252015 13513012512011511010510030
Mature OECD
1
EU-15
Ukraine
Romania
Fixed line penetration, 2005
Mo...
Mpeg 7 audio and beyond audio content indexing and retrieval
... Retrieval 123
4. 4.1 Basic Principles of IR and SDR 1 24
4 .4. 2 Vector Space Models 130
4. 4.3 Word-Based SDR 135
4. 4 .4 Sub-Word-Based Vector Space Models 140
4. 4.5 Sub-Word String Matching 1 54
4 .4. 6 ... Recognition Systems 108
4. 2.3 Recognition Results 111
4. 3 MPEG- 7 SpokenContent Description 113
4. 3.1 General Structure 1 14
4.3.2 SpokenContentHeader 1 14
4.3.3...
Mpeg 7 audio and beyond audio content indexing and retrieval phần 10 doc
... time feature 41
Attack volume 40
Attributes 9, 18, 19, 20, 22
Audio 3
Audio analysis 2, 59, 65
Audio and video retrieval 2
Audio attribute 1 64
Audio broadcast 4
Audio class 77 , 258
Audio classification ... 61.38%
MM 79 .28% 78 .82% 81.13% 79 . 74 %
OM 80. 34% 79 .03% 81.23% 80.20%
SNF 84. 32% 82. 37% 82. 54% 83. 07%
Sets A, B and C: matched noise condition,...
Mpeg 7 audio and beyond audio content indexing and retrieval phần 1 pot
... Retrieval 123
4. 4.1 Basic Principles of IR and SDR 1 24
4 .4. 2 Vector Space Models 130
4. 4.3 Word-Based SDR 135
4. 4 .4 Sub-Word-Based Vector Space Models 140
4. 4.5 Sub-Word String Matching 1 54
4 .4. 6 ... (SVM) 71
3 .4 MPEG- 7 Sound Classification 73
3 .4. 1 MPEG- 7 Audio Spectrum Projection (ASP)
Feature Extraction 74
3 .4. 2 Training Hidden Markov Models (HMM...
Mpeg 7 audio and beyond audio content indexing and retrieval phần 2 doc
... layer.
MPEG- 7 Audio and Beyond: Audio Content Indexing and Retrieval H G. Kim, N. Moreau and T. Sikora
© 2005 John Wiley & Sons, Ltd
2 .7 TIMBRAL DESCRIPTORS 41
Figure 2.13 MPEG- 7 LAT and TC ... DESCRIPTORS 27
Figure 2 .7 MPEG- 7 basic spectral descriptors extracted from a music signal (cor
anglais, 44 .1 kHz)
ASE vector is extracted from 34 frequency...
Mpeg 7 audio and beyond audio content indexing and retrieval phần 3 potx
... ranked according to
MPEG- 7 Audio and Beyond: Audio Content Indexing and Retrieval H G. Kim, N. Moreau and T. Sikora
© 2005 John Wiley & Sons, Ltd
2 .7 TIMBRAL DESCRIPTORS 47
2 .7. 6 Harmonic Spectral ... vectors are generated from audio clips, and if required reduced in
dimension, these are fed into classifiers.
The MPEG- 7 audio LLDs and some other non...
Mpeg 7 audio and beyond audio content indexing and retrieval phần 5 ppt
... be
formed.
1 04 4 SPOKEN CONTENT
In this chapter we use the well defined MPEG- 7 Spoken Content description
standard as an example to illustrate challenges in this domain. The audio part
of MPEG- 7 contains ... words)
HMM
for word W
λ
w
S
5
S
4
S
3
S
2
S
1
x
1
x
2
x
3
x
4
x
5
x
6
(
*
)
(
*
) Likelihood Score = b
1
(x
1
).a
13
.b
3
(x
2
).a
34
.b
4
(x
3
).a
44
.b
4
(...
Mpeg 7 audio and beyond audio content indexing and retrieval phần 6 pptx
... according to the retrieval
50.0
40 .0
30.0
20.0
10.0
0.0
mAP (%)
N = 1N = 2N = 3N = 4
7. 25
27. 10
33. 97
27. 48
Figure 4. 15 mAP values for different n-gram lengths
148 4 SPOKEN CONTENT
BEGIN:
A0 ... available.
4. 4 APPLICATION: SPOKEN DOCUMENT RETRIEVAL 1 57
Target String β (n = 7)
Source String α (m = 6)
u
0
1
2
0123
v
m
∅
∅
Y
mYC
0
123
1
0
21
0
4
E
4
3
n
32
1...
Mpeg 7 audio and beyond audio content indexing and retrieval phần 7 ppsx
... like “warm” or
MPEG- 7 Audio and Beyond: Audio Content Indexing and Retrieval H G. Kim, N. Moreau and T. Sikora
© 2005 John Wiley & Sons, Ltd
5.2 MELODY 179
Figure 5.5 The MPEG- 7 Meter (from ... 3.059 4. 1 37 5.020 6.098
7. 0 34 8. 078 9.103 10.039 11.1 17 12.0
</Scale>
The BP scale represented by the Scale vector contains 13 values:
<Scale>
1.33...
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