Personalized entity rankings

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing personalized evaluations of products, services, or providers are disclosed. In one aspect, a method includes obtaining, for an entity, quality feedback including quality scores representing measures of quality for the entity and including feedback text submitted with the quality scores. A characteristic of the entity is identified from the feedback text, and an influence of the characteristic on the quality scores is determined. A quality profile specifying a measure of importance of the characteristic to the user is identified. An estimated quality value for the entity is determined based on the influence of the characteristic and the characteristic weight, and the entity is ranked based on the estimated quality score.