2005:Symbolic Genre Class

Review 1

The problem is very interesting for MIR, but too vaguely described. The role of the committee is not to propose anything, but to review the proposed evaluation sessions. Thus the author should propose a detailed list of genres and corresponding data.

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I'm not against organizing the genres hierarchically and associating several genres to each file, but this raises many issues that are not discussed at all here. If a track belongs to several genres, are these genres equally weighted or not ? Are they determined by asking several people to classify each track into one genre, or by asking each one to classify each track into several genres ? If there are coarse categories for classical and folk music, where lies the fine category of classical music adapted from folk songs ? I suggest that the contest concentrates on the single genre problem.

The choice of the genre classes is a crucial issue for the contest to be held several times. Indeed existing databases can be reused only when the defined categories are identical each year. Obviously the list of categories should reflect the list of MIDI music available on the internet. It would help if some data were already labeled according to this list.

The list of relevant data should be developed. How many files are needed for learning and testing ? Have the participants already collected some labeled data that they could give to the organizers ? How much ?

Regarding the release of the data, I think that it would be better not to release anything. The training and test data should always be accessible through the D2K interface, and thus no copyright problem would appear. Is it possible to ensure that the test data are used only for testing and not for learning ? Is it possible to implement learning easily in M2K ? (each algorithm may use different structures to store learnt data)

Finally, the evaluation procedure seems nice, but I don't have any clue whether the proposed participants are really interested.