st ▁College ▁al umn i ▁Category : American ▁non - f iction ▁out do ors ▁writers ▁Category : American ▁male ▁non - f iction ▁writers ▁Category : Audio book ▁narr ators ▁Category : W rit ers ▁from ▁San ▁Francisco ▁Category : Har vard ▁Business ▁School ▁al umn i <0x0A> </s> ▁Sim R ank ▁is ▁a ▁general ▁similarity ▁measure , ▁based ▁on ▁a ▁simple ▁and ▁intuit ive ▁graph - the or etic ▁model . ▁Sim R ank ▁is ▁applicable ▁in ▁any ▁domain ▁with ▁object - to - object ▁relationships , ▁that ▁measures ▁similarity ▁of ▁the ▁struct ural ▁context ▁in ▁which ▁objects ▁occur , ▁based ▁on ▁their ▁relationships ▁with ▁other ▁objects . ▁Effect ively , ▁Sim R ank ▁is ▁a ▁measure ▁that ▁says ▁" two ▁objects ▁are ▁considered ▁to ▁be ▁similar ▁if ▁they ▁are ▁referenced ▁by ▁similar ▁objects ." ▁Although ▁Sim R ank ▁is ▁widely ▁adopted , ▁it ▁may ▁output ▁un reason able ▁similarity ▁scores ▁which ▁are ▁influenced ▁by ▁different ▁factors , ▁and ▁can ▁be ▁solved ▁in ▁several ▁ways , ▁such ▁as ▁introdu cing ▁an ▁evidence ▁weight ▁factor , ▁inserting ▁additional ▁terms ▁that ▁are ▁neglect ed ▁by ▁Sim R ank ▁or ▁using ▁Page R ank - based ▁alternatives . ▁ ▁Introduction ▁▁ ▁Many ▁applications ▁require ▁a ▁measure ▁of ▁" similar ity " ▁between ▁objects . ▁One ▁obvious ▁example ▁is ▁the ▁" find - similar - document " ▁query , ▁on ▁traditional ▁text ▁corpor a ▁or ▁the ▁World - W ide ▁Web . ▁More ▁generally , ▁a ▁similarity ▁measure ▁can ▁be ▁used ▁to ▁cluster ▁objects ,