Jaro distance metric(2) The first enhancement: Jaro(sl, s2) 1/3(#common/str len 1 +#common/str len2-+0.3 #similar/#common +0.5#transpositions/#common) Example: scanning errors("1 versus"1 ") keypunch("V"versus"B") The second enhancement. Agreement in the first few characters of a string is more important than agreement on the last few. Jaro=Jaro+i*0. 1*(1-Jaro) For example Abroms miley Abrams Campley Jaro(abroms, abrams =0.9333>Jaro (lampley, campley) =0.9048Jaro distance metric(2) ◼ The first enhancement: ◼ Jaro(s1,s2) = 1/3( #common/str_len1 +#common/str_len2 +0.3 #similar/#common +0.5 #transpositions/#common) ◼ Example: scanning errors ("1" versus "l") keypunch ("V" versus "B") ◼ The second enhancement: ◼ Agreement in the first few characters of a string is more important than agreement on the last few. ◼ Jaro’= Jaro+i*0.1*(1- Jaro) ◼ For example ◼ Jaro’ (abroms,abrams)=0.9333>Jaro’(lampley, campley)=0.9048 Abroms Abrams Lampley Campley