12. The method of claim 11 , further comprising evaluating an aspect coverage of the plurality of aspect clusters.
11. A method comprising: using one or more computer processors, identifying a plurality of aspect clusters based on a plurality of comments, the plurality of comments respectively comprising an overall rating of an entity and at least one phrase, the identifying of the plurality of aspect clusters including: identifying a head term in the at least one phrase of each comment in the plurality of comments, and mapping each head term to one of a plurality of attributes of the entity, each aspect cluster of the plurality of aspect clusters corresponding to an attribute of the entity; and determining an aspect rating corresponding to a first aspect cluster of the plurality of aspect clusters based on the overall rating of respective comments from a portion of the plurality of comments; and causing presentation of a graphical representation of the aspect rating on a client machine.