Leslie Valiant, the 2012 recipient of the ACM Turing Award, was honored for transformative contributions to the theory of computation, including the theory of probably approximately correct (PAC) learning, the complexity of enumeration and of algebraic computation, and the theory of parallel and distributed computing.
More on Leslie G Valiant and his work can be found here.
Michael Stonebraker is being recognized for fundamental contributions to the concepts and practices underlying modern database systems. Stonebraker is the inventor of many concepts that were crucial to making databases a reality and that are used in almost all modern database systems. His work on INGRES introduced the notion of query modification, used for integrity constraints and views. His later work on Postgres introduced the object-relational model, effectively merging databases with abstract data types while keeping the database separate from the programming language.
Stonebraker's implementations of INGRES and Postgres demonstrated how to engineer database systems that support these concepts; he released these systems as open software, which allowed their widespread adoption and their code bases have been incorporated into many modern database systems. Since the pathbreaking work on INGRES and Postgres, Stonebraker has continued to be a thought leader in the database community and has had a number of other influential ideas including implementation techniques for column stores and scientific databases and for supporting on-line transaction processing and stream processing.
ACM presented the 2014 A.M. Turing Award at its annual Awards Banquet on June 20, 2015 in San Francisco, CA.
ACM announced on November 13, 2014 that the funding level for the ACM A.M. Turing Award is now $1,000,000, to be provided by Google Inc. The new amount is four times its previous level.
This site celebrates all the winners since the award's creation in 1966. It contains biographical information, a description of their accomplishments, straightforward explanations of their fields of specialization, and text or video of their A. M. Turing Award Lecture.
The A.M. Turing Award, sometimes referred to as the "Nobel Prize" of Computing, was named in honor of Alan Mathison Turing (1912–1954), a British mathematician and computer scientist. He made fundamental advances in computer architecture, algorithms, formalization of computing, and artificial intelligence. Turing was also instrumental in British code-breaking work during World War II.