where the sum is taken over {HEAD ~ all the templates} in {TAIL ~ the biometric corpus}, tmsit is a template match score between the ith speaker identity candidate and a tth template, and pmst is a probe match score for the tth template 
in
where the sum is taken over { HEAD ~ all the templates } in { TAIL ~ the biometric corpus } , tmsit is a template match score between the ith speaker identity candidate and a tth template , and pmst is a probe match score for the tth template
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH