12. A system for adding a hyperlink to a document including a person name, the system comprising: at least one processor; a memory coupled to the processor, the memory including instructions for: identifying a name in a document; determining a rarity indicator for the name, the rarity indicator representing a measure of how likely the name is to refer to more than one entity in a population, and wherein determining a rarity indicator for the name further comprises the formula: 
 P (nameUniqueness)=1/(( H*P (name))+1) wherein H denotes the size of the human population likely to be referenced in the document, P(name) is the name match probability score, and P(nameUniqueness) is the probability of name uniqueness; and defining a hyperlink for the name based on the rarity indicator.
12. A system for adding a hyperlink to a document including a person name, the system comprising: at least one processor; a memory coupled to the processor, the memory including instructions for: identifying a name in a document; determining a rarity indicator for the name, the rarity indicator representing a measure of how likely the name is to refer to more than one entity in a population, and wherein determining a rarity indicator for the name further comprises the formula: 
 P (nameUniqueness)=1/(( H*P (name))+1) wherein H denotes the size of the human population likely to be referenced in the document, P(name) is the name match probability score, and P(nameUniqueness) is the probability of name uniqueness; and defining a hyperlink for the name based on the rarity indicator. 14. The system of claim 12 , wherein the rarity indicator is a quantity based on a probability of drawing at least a portion of the name at random from a set of sample names representative of a relevant human population.