20. The system of claim 19 , wherein the changes are monitored by an application having a plurality of components including an annotator creation tool, the set of annotators, an annotator execution engine, and a document evaluation tool, the set of annotators including the set of annotators; wherein each cited document comprises a respective cited research paper, wherein the first and second collections of assertions includes each of: an assertion of causation, correlation, existence, truth, and falsity, respectively, relative to a concept from the common ontology; wherein each assertion is identified by a respective one of the one or more annotators.
20. The system of claim 19 , wherein the changes are monitored by an application having a plurality of components including an annotator creation tool, the set of annotators, an annotator execution engine, and a document evaluation tool, the set of annotators including the set of annotators; wherein each cited document comprises a respective cited research paper, wherein the first and second collections of assertions includes each of: an assertion of causation, correlation, existence, truth, and falsity, respectively, relative to a concept from the common ontology; wherein each assertion is identified by a respective one of the one or more annotators. 21. The system of claim 20 , wherein each of the one or more annotators provide executable or interpretable code that creates annotations describing document content; wherein the indication specifies approval of, in respective instances: (i) the citing content unaltered in the primary research document in light of the first monitored change; and (ii) the updated version of the citing content in light of the first monitored change.