sentences:  He and Joseph Becker co-authored "Information Storage and Retrieval" (1963), the most comprehensive text in the field at the time.He also partnered with Becker in 1969 to found Becker and Hayes Incorporated, for the purpose of creating an interlibrary network for the State of Washington, a goal that they eventually accomplished.A lecturer in mathematics at UCLA since 1952, Hayes became a full-time professor there in 1964.