ENTITY ASSESSMENT AND RANKING
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Abstract
General entity retrieval and ranking is described. A first set of documents is retrieved from one or more document repositories based on a query formed according to the topic. The first set of documents is characterized based on its first set of metadata values. One or more candidate entities are identified based on the first set of documents and the original query is thereafter augmented according to a candidate entity. The second set of documents resulting from the augmented query is then characterized in a similar manner. For each candidate entity, the first and second document set characterizations are compared to determine their degree of similarity. Increasingly similar document set characterizations indicates that the candidate entity is increasingly relevant to the original query. Repeating this process for each of the one or more candidate entities can give rise to rankings according to the respective degrees of similarity.
20 Citations
38 Claims
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1-18. -18. (canceled)
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19. An entity determination method for a query, the method comprising:
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determining characterizations of a first set of documents returned as search results for the query based on metadata associated with the first set of documents; determining, by a processing device, candidate entities for the first set of documents; determining a similarity of each candidate entity to the query based on the characterizations of the first set of documents and information associated with each candidate entity. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A search engine system comprising:
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a data repository to store documents; a document search engine executed by at least one processor to execute a query associated with a topic on the data repository; a document characterizer to determine characterizations of a first set of documents returned as search results for the query based on metadata associated with the first set of documents; and an entity determination subsystem to determine candidate entities for the first set of documents and determine a similarity of each candidate entity to the topic of the query based on the characterizations of the first set of documents and information associated with each candidate entity. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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36. A system to determine entities associated with a topic based on query search results, the system comprising:
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an interface to receive information associated with a topic from a user; an entity ranking subsystem executed by at least one processor to determine characterizations of a first set of documents returned as search results for the query based on metadata associated with the first set of documents, determine candidate entities for the first set of documents, determine a similarity of each candidate entity to the topic of the query based on the characterizations of the first set of documents and information associated with each candidate entity, and determine rankings of the candidate entities based on their similarity to the topic, wherein the entity ranking subsystem is to present the rankings via the interface. - View Dependent Claims (37, 38)
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Specification