20. A computer-implemented method, comprising: receiving texts from each of a plurality of text sources, wherein each text source provides a text; deriving a plurality of name-context pairs from the texts, wherein each name-context pair comprises an entity name included in the text from a text source and a context term included in the text from the text source, wherein each entity name is one or more terms used to refer to a respective entity and each context term is a term that appears in text associated with the entity name; calculating a context consistency measure for each distinct name-context pair, wherein the context consistency measure for a particular name-context pair is an estimate of a probability that, if the entity name of the particular name-context pair appears in text, the context term of the particular name-context pair will also appear in the text; and storing context-entity name data, wherein the context-entity name data is searchable data that represents one or more of the distinct name-context pairs and the context consistency measure for each of the one or more name-context pair.
20. A computer-implemented method, comprising: receiving texts from each of a plurality of text sources, wherein each text source provides a text; deriving a plurality of name-context pairs from the texts, wherein each name-context pair comprises an entity name included in the text from a text source and a context term included in the text from the text source, wherein each entity name is one or more terms used to refer to a respective entity and each context term is a term that appears in text associated with the entity name; calculating a context consistency measure for each distinct name-context pair, wherein the context consistency measure for a particular name-context pair is an estimate of a probability that, if the entity name of the particular name-context pair appears in text, the context term of the particular name-context pair will also appear in the text; and storing context-entity name data, wherein the context-entity name data is searchable data that represents one or more of the distinct name-context pairs and the context consistency measure for each of the one or more name-context pair. 21. The method of claim 20 , wherein the context-entity name data maps each context term in the name-context pairs to a list of entity names and the context consistency measure for each entity name.