Elizabeth Jean (Betty)O'Neil is an American computer scientist known for her highly cited work indatabases, includingC-Store, the LRU-Kpage replacement algorithm, thelog-structured merge-tree, and her criticism of the ANSI SQL 92isolation mechanism. She is a professor of computer science at theUniversity of Massachusetts Boston.
O'Neil is a 1963 graduate of theMassachusetts Institute of Technology, majoring inapplied mathematics. She completed a Ph.D. in applied mathematics atHarvard University in 1968.[1] Her dissertation wasA quasi-linear theory for axially symmetric flows in a stratified rotating fluid.[2] After postdoctoral research at theCourant Institute of Mathematical Sciences ofNew York University, and short-term teaching positions at New York University and the Massachusetts Institute of Technology, she joined the faculty of the University of Massachusetts Boston in 1970.[1]
O'Neil is the author, withPatrick O'Neil, of the bookDatabase: Principles, Programming, Performance (Morgan Kaufmann, 2nd ed., 2001).