Personalized entity rankings

A non-transitory computer storage medium encoded with a computer program, the program comprising instructions that when executed by data processing apparatus cause the data processing apparatus to perform operations comprising:

• obtaining, for a product or service, quality feedback including multiple different quality scores representing different measures of quality that have been assigned to the product or service by multiple different users, the quality feedback including feedback text submitted by the multiple different users with the quality scores;
• identifying, from the feedback text, a characteristic, of the product or service, that has been referenced in the feedback text submitted by the multiple different users;
• determining an amount of influence of the characteristic on the quality scores that were submitted with the feedback text based on a difference between a first aggregate value of the quality scores that were submitted without feedback text identifying the characteristic relative to a second aggregate value of the quality scores that were submitted with feedback text identifying the characteristic, wherein the amount of influence corresponds to differences in quality scores that are attributable to the characteristic;
• identifying, for a given user, a quality profile specifying a characteristic weight that is a measure of importance of the characteristic to the given user;
• determining, for the given user, a personalized estimated quality value for the product or service, including adjusting an overall quality score for the product or service based on the influence of the characteristic on the quality scores based on the characteristic weight for the given user;
• and
• ranking, for the given user, the product or service among other products or services based on the estimated quality score.

A system comprising:

• a data store storing quality feedback, for one or more different entities, the quality feedback including quality scores representing measures of quality for the entity and including feedback text submitted with the quality scores;
• and
• one or more computers that execute instructions that cause the one or more computers to interact with the device and to perform operations comprising:
• obtaining, for a product or service and from the data store, quality feedback including multiple different quality scores representing different measures of quality that have been assigned to the product or service by multiple different users, the quality feedback including feedback text submitted by the multiple different users with the quality scores;
• identifying, from the feedback text, a characteristic, of the product or service, that has been referenced in the feedback text submitted by the multiple different users;
• determining an amount of influence of the characteristic on the quality scores that were submitted with the feedback text based on a difference between a first aggregate value of the quality scores that were submitted without feedback text identifying the characteristic relative to a second aggregate value of the quality scores that were submitted with feedback text identifying the characteristic, wherein the amount of influence corresponds to differences in quality scores that are attributable to the characteristic;
• identifying, for a given user, a quality profile specifying a characteristic weight that is a measure of importance of the characteristic to the given user;
• determining, for the given user, a personalized estimated quality value for the product or service, including adjusting an overall quality score for the product or service based on the influence of the characteristic on the quality scores based on the characteristic weight for the given user;
• and
• ranking, for the given user, the product or service among other products or services based on the estimated quality score.