Hans Peter Luhn
Hans Peter Luhn ( July 1 , 1896 – August 19 , 1964 ) was a researcher in the field of computer science , and , Library & Information Science for IBM , and creator of the Luhn algorithm , KWIC ( Key Words In Context ) indexing , and Selective dissemination of information ( "SDI" ) . 
<triplet> Hans Peter Luhn <subj> July 1, 1896 <obj> date of birth <subj> August 19, 1964 <obj> date of death <subj> IBM <obj> employer <triplet> Luhn algorithm <subj> Hans Peter Luhn <obj> named after <triplet> Selective dissemination of information ("SDI") <subj> Hans Peter Luhn <obj> discoverer or inventor