Take into account the dictionary - scores

[Marijkevandesteene]

As suggested by Dries the dictionary can give information on the features. A quick look at it indicated that the scores are from different hotels. I believe we can use a mean of the scores per instance and see what that gives.

[dluts]

Yes, dropping the scores is not the right approach here, creating a new features containing the score values and information on which hotels have scored seems a bit more sensible to me.

[Marijkevandesteene]

Is tackled in the integrated solution