3. The method of claim 1 , wherein identifying a quality profile for the given user comprises: obtaining previous quality feedback previously received from the given user; identifying a characteristic referenced by feedback text in the previous quality feedback received from the given user; identifying first quality scores that were received in a portion of the previous quality feedback that includes the feedback text that references the characteristic; identifying second quality scores that were received in a portion of the previous quality feedback that does not include the feedback text that references the characteristic; and determining the characteristic weight for the given user based on a difference between the first quality scores and the second quality scores.
3. The method of claim 1 , wherein identifying a quality profile for the given user comprises: obtaining previous quality feedback previously received from the given user; identifying a characteristic referenced by feedback text in the previous quality feedback received from the given user; identifying first quality scores that were received in a portion of the previous quality feedback that includes the feedback text that references the characteristic; identifying second quality scores that were received in a portion of the previous quality feedback that does not include the feedback text that references the characteristic; and determining the characteristic weight for the given user based on a difference between the first quality scores and the second quality scores. 4. The method of claim 3 , comprising generating the quality profile based on the characteristic weight of the characteristic for the given user and at least one additional characteristic weight of at least one additional characteristic for the given user.