In 1967, a team at the Census Bureau – including the mathematician James Corbett and Donald Cooke – invented Dual Independent Map Encoding (DIME) – the first modern vector mapping model – which ciphered address ranges into street network files and incorporated the "percent along" geocoding algorithm. Still in use by platforms such as Google Maps and MapQuest, the "percent along" algorithm denotes where a matched address is located along a reference feature as a percentage of the reference feature's total length. DIME was intended for the use of the United States Census Bureau, and it involved accurately mapping block faces, digitizing nodes representing street intersections, and forming spatial relationships. New Haven, Connecticut, was the first city on Earth with a geocodable streets network database.