Table 5 Evaluation of the different approaches for retrieving lyrics from the web

lyricshall.com

1

0.000632911

0.001265022

moron.nl

1

0.009177215

0.018187520

lyricsreg.com

1

0.030063291

0.058371736

themusic-world.com

1

0.045253165

0.086587950

lyricspedia.com

1

0.083227848

0.153666375

1songlyrics.com

1

0.120569620

0.215193448

lyricmania.com

1

0.122151899

0.217710096

lyricsoncall.com

1

0.133544304

0.235622557

6lyrics.com

1

0.163291139

0.280739935

letras.mus.br

1

0.392721519

0.563962736

vagalume.com.br

1

0.496518987

0.663565236

vounessa.com.br

1

0.615189873

0.761755486

EvilLyrics_ST+A

0.847013622

0.906012658

0.875520318

All 12 websites

1

0.784810127

0.879432624

Manually retrieved

1

0.792405063

0.884180791

ELF_ST+A

0.928345627

0.900949367

0.914442348

EvilLyrics_ST

0.926746167

0.928797468

0.927770684

ELF_ST

0.980744544

0.986075949

0.983403021