2. The system of claim 1 , wherein the one or more processors are further to implement an extraction module to extract one or more phrases from the portion of the plurality of comments, the extracted phrases corresponding to the aspect cluster.
1. A system comprising: a memory to store a plurality of comments, the plurality of comments respectively comprising an overall rating of an entity and at least one phrase, the at least one phrase comprising a head term and a modifier associated with the head term; and one or more processors to implement: an aspect module to map respective head terms of a portion of the plurality of comments to an aspect cluster corresponding to an attribute of the entity, and a rating module to determine an aspect rating corresponding to the attribute of the entity based on the respective overall rating of the portion of the plurality of comments, and a module to cause presentation, on a client machine, of a graphical representation of the determined aspect rating corresponding to the attribute of the entity.