"Stephen Frank Altschul (born February 28, 1957) is an American mathematician who has designed algorithms that are used in the field of bioinformatics (the Karlin-Altschul algorithm and its successors). Altschul is the co-author of the BLAST algorithm used for sequence analysis of proteins and nucleotides."@en . . "Mathematician" . . "1957Z"^^ . . . . "1957-02-28Z"^^ . "Stephen Frank Altschul"@en . . "Altschul, Stephen"@en .