14. The system of claim 12 , further configured to: generate a set of predicate results from one or more web crawls using predicate analysis based on affix schemas with predetermined context words before and after entity mentions; apply one or more of the first or second search attribute sets to search among the predicate results set; electronically receive entity reflections from searching the predicate results set that include predicated entity attributes for the real-world entity; and update the combination to include one or more of the predicated entity attributes.
12. A system, including: one or more processors coupled to memory, the memory loaded with computer instructions that, when executed on the processors, implement actions including: selecting one or more core entity attributes that represent a real-world entity as a first search attribute set for use in searching biographical sources; receiving, responsive to searching the biographical sources based on the first search attribute set, entity reflections that include supplemental entity attributes for the real-world entity; using a combination of the selected core entity attributes and one or more supplemental entity attributes to define a second search attribute set that is narrower than the first search attribute set; receiving, responsive to searching further web sources based on the second search attribute set, more entity reflections that include meta entity attributes for the real-world entity; and updating the combination to include one or more of the meta entity attributes.