2009:Audio Cover Song Identification Results
Contents
Introduction
This year, we ran Audio Cover Song (ACS) Identfication with two datasets: Mixed Collection and Sapp's Mazurka Collection.
Mixed Collection Information
This is the "original" ACS collection. Within the 1000 pieces in the Audio Cover Song database, there are embedded 30 different "cover songs" each represented by 11 different "versions" for a total of 330 audio files (16bit, monophonic, 22.05khz, wav). The "cover songs" represent a variety of genres (e.g., classical, jazz, gospel, rock, folk-rock, etc.) and the variations span a variety of styles and orchestrations.
Using each of these cover song files in turn as as the "seed/query" file, we will examine the returned lists of items for the presence of the other 10 versions of the "seed/query" file.
Sapp's Mazurka Collection Information
In addition to our original ACS dataset, we used the Mazurka.org dataset put together by Craig Sapp. We randomly chose 11 versions from 49 mazurkas and ran it as a separate ACS subtask. Systems returned a distance matrix of 539x539 from which we located the ranks of each of the associated cover versions.
General Legend
Team ID
RE = Suman Ravuri, Daniel P. W. Ellis
SZA = Joan Serra, Massimiliano Zanin, Ralph G. Andrzejak
TA = Teppo E. Ahonen
Results
Mixed Collection
Summary Results
| RE | SZA | TA | |
|---|---|---|---|
| Total number of covers identified in top 10 | 2046.00 | 2426.00 | 646.00 |
| Mean number of covers identified in top 10 (average performance) | 6.20 | 7.35 | 1.96 |
| Mean (arithmetic) of Avg. Precisions | 0.66 | 0.75 | 0.20 |
| Mean rank of first correctly identified cover | 2.28 | 6.15 | 29.90 |
Number of Correct Covers at Rank X Returned in Top Ten
| Rank | RE | SZA | TA |
|---|---|---|---|
| 1 | 285 | 284 | 118 |
| 2 | 271 | 285 | 108 |
| 3 | 245 | 282 | 85 |
| 4 | 246 | 279 | 80 |
| 5 | 228 | 265 | 58 |
| 6 | 208 | 252 | 61 |
| 7 | 196 | 230 | 46 |
| 8 | 160 | 227 | 33 |
| 9 | 139 | 186 | 32 |
| 10 | 68 | 136 | 25 |
| Total | 2046 | 2426 | 646 |
Average Performance per Query Group
| Group | RE | SZA | TA |
|---|---|---|---|
| 1 | 0.56 | 0.97 | 0.02 |
| 2 | 0.90 | 0.75 | 0.04 |
| 3 | 0.29 | 0.05 | 0.06 |
| 4 | 0.57 | 1 | 0.04 |
| 5 | 0.03 | 0.01 | 0.02 |
| 6 | 0.77 | 0.76 | 0.11 |
| 7 | 0.89 | 1 | 0.15 |
| 8 | 0.91 | 1 | 0.61 |
| 9 | 0.94 | 0.96 | 0.32 |
| 10 | 0.75 | 0.99 | 0.14 |
| 11 | 0.22 | 0.72 | 0.08 |
| 12 | 0.65 | 0.51 | 0.29 |
| 13 | 1 | 1 | 0.90 |
| 14 | 0.45 | 0.93 | 0.02 |
| 15 | 0.92 | 0.90 | 0.07 |
| 16 | 0.42 | 0.21 | 0.01 |
| 17 | 0.88 | 0.90 | 0.49 |
| 18 | 0.84 | 0.90 | 0.05 |
| 19 | 0.95 | 1 | 0.79 |
| 20 | 0.46 | 0.06 | 0.01 |
| 21 | 0.57 | 0.21 | 0.03 |
| 22 | 0.85 | 1 | 0.04 |
| 23 | 0.94 | 0.99 | 0.07 |
| 24 | 0.86 | 0.98 | 0.58 |
| 25 | 0.91 | 0.91 | 0.49 |
| 26 | 0.43 | 0.91 | 0.05 |
| 27 | 0.23 | 0.81 | 0.04 |
| 28 | 0.82 | 0.80 | 0.26 |
| 29 | 0.79 | 0.89 | 0.02 |
| 30 | 0.84 | 0.96 | 0.02 |
Friedman's Test for Significant Differences
The Friedman test was run in MATLAB against the Average Precision summary data over the 30 song groups.
Command: [c,m,h,gnames] = multcompare(stats, 'ctype', 'tukey-kramer','estimate', 'friedman', 'alpha', 0.05);
| TeamID | TeamID | Lowerbound | Mean | Upperbound | Significance |
|---|---|---|---|---|---|
| SZA | RE | -0.44 | 0.17 | 0.77 | FALSE |
| SZA | TA | 0.88 | 1.48 | 2.09 | TRUE |
| RE | TA | 0.71 | 1.32 | 1.92 | TRUE |
File:Coversong Mixed Ave Performance Per Query Group Friedman Mean Ranks.png
Run Times
TBA
Sapp's Mazuraka Collection
Summary results
| RE | SZA | TA | |
|---|---|---|---|
| Total number of covers identified in top 10 | 4757.00 | 5165.00 | 2843.00 |
| Mean number of covers identified in top 10 (average performance) | 8.83 | 9.58 | 5.27 |
| Mean (arithmetic) of Avg. Precisions | 0.91 | 0.96 | 0.56 |
| Mean rank of first correctly identified cover | 1.68 | 1.61 | 5.49 |
Number of Correct Covers at Rank X Returned in Top Ten
| Rank | RE | SZA | TA |
|---|---|---|---|
| 1 | 522 | 527 | 451 |
| 2 | 522 | 522 | 413 |
| 3 | 522 | 525 | 368 |
| 4 | 523 | 516 | 320 |
| 5 | 518 | 522 | 316 |
| 6 | 513 | 522 | 271 |
| 7 | 495 | 518 | 235 |
| 8 | 452 | 506 | 195 |
| 9 | 415 | 511 | 160 |
| 10 | 285 | 496 | 114 |
| Total | 4767 | 5165 | 2843 |
Average Performance per Query Group
| Group | RE | SZA | TA |
|---|---|---|---|
| 1 | 1.00 | 1 | 0.61 |
| 2 | 1 | 1 | 0.94 |
| 3 | 1 | 1 | 0.72 |
| 4 | 0.98 | 0.98 | 0.92 |
| 5 | 1 | 1 | 0.02 |
| 6 | 0.89 | 1 | 0.47 |
| 7 | 1 | 1 | 0.97 |
| 8 | 1 | 1 | 0.45 |
| 9 | 1 | 1 | 0.96 |
| 10 | 0.92 | 1 | 0.68 |
| 11 | 0.97 | 1 | 0.90 |
| 12 | 0.85 | 1 | 0.32 |
| 13 | 1 | 1 | 0.31 |
| 14 | 0.99 | 1 | 0.26 |
| 15 | 0.97 | 1 | 0.80 |
| 16 | 0.99 | 1 | 0.34 |
| 17 | 0.99 | 1 | 0.05 |
| 18 | 0.98 | 1 | 0.81 |
| 19 | 1 | 0.94 | 0.86 |
| 20 | 1 | 1 | 0.98 |
| 21 | 1 | 1 | 0.49 |
| 22 | 0.90 | 1 | 0.97 |
| 23 | 1 | 1 | 0.90 |
| 24 | 0.75 | 1 | 0.56 |
| 25 | 0.99 | 1 | 0.41 |
| 26 | 0.71 | 0.73 | 0.08 |
| 27 | 0.90 | 0.84 | 0.60 |
| 28 | 0.58 | 0.45 | 0.45 |
| 29 | 0.45 | 0.49 | 0.32 |
| 30 | 0.93 | 1 | 0.30 |
| 31 | 0.91 | 1 | 0.30 |
| 32 | 0.94 | 1 | 0.87 |
| 33 | 1 | 1 | 0.74 |
| 34 | 0.94 | 1 | 0.28 |
| 35 | 0.92 | 1 | 0.40 |
| 36 | 0.90 | 1 | 0.75 |
| 37 | 0.91 | 1 | 0.27 |
| 38 | 0.75 | 1 | 0.05 |
| 39 | 0.99 | 1 | 0.87 |
| 40 | 1 | 1 | 0.04 |
| 41 | 0.89 | 1 | 0.94 |
| 42 | 0.91 | 0.99 | 0.47 |
| 43 | 0.83 | 1 | 0.30 |
| 44 | 0.90 | 1 | 0.18 |
| 45 | 0.75 | 1 | 0.03 |
| 46 | 1 | 1 | 0.41 |
| 47 | 1 | 1 | 0.91 |
| 48 | 0.98 | 1 | 0.72 |
| 49 | 0.89 | 0.90 | 0.46 |
Friedman's Test for Significant Differences
The Friedman test was run in MATLAB against the Average Precision summary data over the 30 song groups.
Command: [c,m,h,gnames] = multcompare(stats, 'ctype', 'tukey-kramer','estimate', 'friedman', 'alpha', 0.05);
| TeamID | TeamID | Lowerbound | Mean | Upperbound | Significance |
|---|---|---|---|---|---|
| SZA | RE | 0.1764 | 0.6327 | 1.0889 | TRUE |
| SZA | TA | 1.2988 | 1.7551 | 2.2114 | TRUE |
| RE | TA | 0.6662 | 1.1224 | 1.5787 | TRUE |
File:Coversong Mazurkas Ave Performance Per Query Group Friedman Mean Ranks.png
Run Times
TBA
Individual Results Files
Mixed Collection
Average Precision by Query
RE : S. Ravuri, D.P.W Ellis
SZA : J. Serra et al.
TA : T. Ahonen
Average Precision by Cover Group
RE : S. Ravuri, D.P.W Ellis
SZA : J. Serra et al.
TA : T. Ahonen
Rank Lists
RE : S. Ravuri, D.P.W Ellis
SZA : J. Serra et al.
TA : T. Ahonen
Sapp's Mazurka Collection
Average Precision by Query
RE : S. Ravuri
SZA : J. Serra et al.
TA : T. Ahonen
Average Precision by Cover Group
RE : S. Ravuri
SZA : J. Serra et al.
TA : T. Ahonen
Rank Lists
RE : S. Ravuri
SZA : J. Serra et al.
TA : T. Ahonen
