2008:Audio Chord Detection Results

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Contents

Introduction

These are the results for the 2008 running of the Audio Chord Detection task set. For background information about this task set please refer to the 2008:Audio Chord Detection page.

Task Descriptions

Task 1 (Pretrained Systems) Go to Task 1 Results: Systems were pretrained and they were tested against 176 Beatles songs.

Task 2 (Train-Test Systems) Go to Task 2 Results: System trained on ~2/3 of the beatles dataset and tested on ~1/3. Album filtering was applied on each train-test fold such that the songs from the same album can not appear in both train and test sets simultaneously.

Overlap score was calculated as the ratio between the overlap of the ground truth and detected chords and ground truth duration. Also a secondary overlap score was calculated by ignoring the major-minor variations of the detected chord (e.g., C major == C minor, etc.).

Note that 4 songs were excluded from the original Beatles dataset because of alignment of ground truth to the audio problems. The ground truth to audio alignment was done automatically. The script to perform the alignment is going to be released soon by Chris Harte.

General Legend

Team ID for ChordPreTrained (Task 1)

BP = J. P. Bello, J. Pickens
KO = M. Khadkevich, M. Omologo
KL1 = K. Lee 1
KL2 = K. Lee 2
MM = M. Mehnert
PP = H.Papadopoulos, G. Peeters
PVM = J. Pauwels, M. Varewyck, J-P. Martens
RK = M. Ryynänen, A. Klapuri

Team ID for ChordTrainTest (Task 2)

DE = D. Ellis
ZL = X. Jhang, C. Lash
KO = M. Khadkevich, M. Omologo
KL = K. Lee (withtrain)
UMS = Y. Uchiyama, K. Miyamoto, S. Sagayama
WD1 = J. Weil
WD2 = J. Weil, J-L. Durrieu

Overall Summary Results

Task 1 Results

Task 1 Overall Results
TeamID BP KL1 KL2 KO MM PP PVM RK
Avg. Overlap Score 0.66 0.56 0.59 0.62 0.65 0.63 0.59 0.64
Avg. Overlap Score (Merged maj/min) 0.69 0.6 0.65 0.65 0.68 0.66 0.62 0.69

download these results as csv

TeamID BP KL1 KL2 KO MM PP PVM RK
Run Time(sec) 2059 853 827 2832 5580 6100 7411 1634

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Task 1 Summary Data for Download

File Name Set (Pretrained runs)
Summary Overlap Data (Pretrained runs)
Summary Overlap Data (Pretrained runs (Merged maj/min))

Task 1 Friedman's Test for Significant Differences

The Friedman test was run in MATLAB against the Task 1 Overlap Score data over the 176 ground truth songs.


Source SS df MS Chi-sq Prob>Chi-sq
Columns 1180.83 7 168.69 196.83 0
Error 6210.17 1225 5.07
Total 7391 1407

download these results as csv

The Tukey-Kramer HSD multi-comparison data below was generate using the following MATLAB instruction.

Command: [c,m,h,gnames] = multcompare(stats, 'ctype', 'tukey-kramer', 'estimate', 'friedman', 'alpha', 0.05);

TeamID TeamID Lowerbound Mean Upperbound Significance
BP KL1 2.1575 2.9489 3.7402 TRUE
BP KL2 1.4814 2.2727 3.0641 TRUE
BP KO 0.7598 1.5511 2.3425 TRUE
BP MM -0.3681 0.4233 1.2147 FALSE
BP PP 0.4842 1.2756 2.0669 TRUE
BP PVM 1.2996 2.0909 2.8823 TRUE
BP RK 0.2371 1.0284 1.8198 TRUE
KL1 KL2 -1.4675 -0.6761 0.1152 FALSE
KL1 KO -2.1891 -1.3977 -0.6064 TRUE
KL1 MM -3.3169 -2.5256 -1.7342 TRUE
KL1 PP -2.4647 -1.6733 -0.8819 TRUE
KL1 PVM -1.6493 -0.8580 -0.0666 TRUE
KL1 RK -2.7118 -1.9205 -1.1291 TRUE
KL2 KO -1.5129 -0.7216 0.0698 FALSE
KL2 MM -2.6408 -1.8494 -1.0581 TRUE
KL2 PP -1.7885 -0.9972 -0.2058 TRUE
KL2 PVM -0.9732 -0.1818 0.6095 FALSE
KL2 RK -2.0357 -1.2443 -0.4530 TRUE
KO MM -1.9192 -1.1278 -0.3365 TRUE
KO PP -1.0669 -0.2756 0.5158 FALSE
KO PVM -0.2516 0.5398 1.3311 FALSE
KO RK -1.3141 -0.5227 0.2686 FALSE
MM PP 0.0609 0.8523 1.6436 TRUE
MM PVM 0.8763 1.6676 2.4590 TRUE
MM RK -0.1862 0.6051 1.3965 FALSE
PP PVM 0.0240 0.8153 1.6067 TRUE
PP RK -1.0385 -0.2472 0.5442 FALSE
PVM RK -1.8539 -1.0625 -0.2711 TRUE

download these results as csv

2008 task1.friedman.png

Task 2 Results

Task 2 Overall Results
TeamID DE KL KO UMS WD1 WD2 ZL
Avg. Overlap Score 0.66 0.58 0.55 0.72 0.60 0.62 0.36
Avg. Overlap Score (Merged maj/min) 0.70 0.65 0.58 0.77 0.66 0.69 0.46

download these results as csv

TeamID DE KL KO UMS WD1 WD2 ZL
Run Time (s) 6294 2745 4824 22593 3816 145812 7020

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Task 2 Summary Data for Download

File Name Set (Train-test runs)
Summary Overlap Data (Train-test runs)
Summary Overlap Data (Train-Test runs (Merged maj/min))
Per Fold Summary Data (Train-Test runs (Zip archive))

Task Friedman's Test for Significant Differences

The Friedman test was run in MATLAB against the Task 2 Overlap Score data over the 176 ground truth songs.


Source SS df MS Chi-sq Prob>Chi-sq
Columns 2596.95 6 432.825 562.85 0
Error 2607.55 1122 2.324
Total 5204.5 1315

download these results as csv

The Tukey-Kramer HSD multi-comparison data below was generate using the following MATLAB instruction.

Command: [c,m,h,gnames] = multcompare(stats, 'ctype', 'tukey-kramer', 'estimate', 'friedman', 'alpha', 0.05);

TeamID TeamID Lowerbound Mean Upperbound Significance
DE KL 0.8069 1.4601 2.1133 TRUE
DE KO 1.3840 2.0372 2.6904 TRUE
DE UMS -1.6851 -1.0319 -0.3787 TRUE
DE WD1 0.6074 1.2606 1.9138 TRUE
DE WD2 0.1287 0.7819 1.4351 TRUE
DE ZL 3.0862 3.7394 4.3926 TRUE
KL KO -0.0761 0.5771 1.2303 FALSE
KL UMS -3.1452 -2.4920 -1.8388 TRUE
KL WD1 -0.8527 -0.1995 0.4537 FALSE
KL WD2 -1.3314 -0.6782 -0.0250 TRUE
KL ZL 1.6261 2.2793 2.9325 TRUE
KO UMS -3.7223 -3.0691 -2.4159 TRUE
KO WD1 -1.4298 -0.7766 -0.1234 TRUE
KO WD2 -1.9085 -1.2553 -0.6021 TRUE
KO ZL 1.0489 1.7021 2.3553 TRUE
UMS WD1 1.6394 2.2926 2.9458 TRUE
UMS WD2 1.1606 1.8138 2.4670 TRUE
UMS ZL 4.1181 4.7713 5.4245 TRUE
WD1 WD2 -1.1319 -0.4787 0.1745 FALSE
WD1 ZL 1.8255 2.4787 3.1319 TRUE
WD2 ZL 2.3042 2.9574 3.6106 TRUE

download these results as csv

2008 task2.allfolds friedman.png

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