32-G924 Barbara Liskov is an Institute Professor and head of the Programming Methodology Group. After a year at Mitre, she moved to Harvard to work on computer translation of human languages. BSc in Mathematics, University of California, Berkeley (1961); PhD in computer science, Stanford University (1968), Mitre Corporation, (1968-1972); MIT (1972 onwards, 2001-2004 as Associate Department Head and later as Associate Provost). This paper describes an asynchronous state-machine replication system that tolerates Byzantine faults, which can be caused by malicious attacks or software errors, and it performs well because it uses symmetric rather than public-key cryptography for authentication. Author pages are created from data sourced from our academic publisher partnerships and public sources. "Barbara is revered in the MIT community for her role as scholar, mentor and leader," said MIT President Susan Hockfield. Her contributions have influenced advanced system developments and set a standard for clarity and usefulness. She left Mitre and joined the MIT faculty as a professor in the Laboratory for Computer Science. This paper presents a new model for controlling information flo w in systems with mutual distrust and decentralized authority. Her MIT group also created the Argus language, which extended the ideas of CLU to ease implementation of programs distributed over a network, including support for nested transactions. She became a full professor at MIT in 1980. Protecting privacy using the decentralized label model, Foundations of Intrusion Tolerant Systems…. Speedy transactions in multicore in-memory databases. and Ph.D. in computer science from Stanford University. An example of such a distributed program might be a network based banking system. At MIT she led the design and implementation of the CLU programming language, which emphasized the notions of modular programming, data abstraction, and polymorphism. authorities on computer language and system design. of the Seventeenth International Symposium on Fault-Tolerant Computing, July, 1987, pp. Liskov is currently the Ford Professor of Engineering at MIT. Liskov developed methods to allow correct operation even when some components are unreliable. Viewstamped Replication: A New Primary Copy Method to Support Highly-Available Distributed Systems. Weak Consistency: A Generalized Theory and Optimistic Implementations for Distributed Transactions. She is currently a member of the faculty at the Massachusetts Institute of Technology, where she … Honorary Doctorates: ETH, Zurich, Switzerland (2005); Northwestern University, Chicago (2011); University of Lugano, Switzerland (2011). The Venus system supported 16 teletypes and each user was connected to a virtual machine so that major errors would not compromise the entire system, only the virtual machine for that user. Using an Interdata 3 computer that had the ability to change the instruction set via microcode, she created the “Venus Computer” tailored to supporting the construction of complex software. in mathematics from the University of California at Berkeley and her M.S. These concepts are a foundation of object-oriented programming used in modern computer languages such as Java and C#, although many other features of modern object oriented programming are missing from this early language. Silo is a new in-memory database that achieves excellent performance and scalability on modern multicore machines, as well as near-linear scalability. "Her pioneering research has made her one of the world's leading The use of hierarchy is an important component of object-oriented design. After receiving her PhD, Barbara married Nathan Liskov and moved back to the Boston area to work at the Mitre Corporation in Bedford, MA on computer design and operating systems. Weak Consistency: A Generalized Theory and Optimistic Implementations for Distributed Transactions. © 2019 Association for Computing Machinery. http://www.pmg.csail.mit.edu/~liskov/ Protecting privacy using the decentralized label model, Foundations of Intrusion Tolerant Systems…. Also published inProc. Liskov's subsequent work has mainly been in the area of distributed systems, which use several computers connected by a network. Argus provided object abstractions called “guardians” that encapsulate related procedures. She had not known that the principle had borne her name for years in the community. Practical byzantine fault tolerance and proactive recovery. Barbara Liskov received her B.A. Many of these, like Byzantine fault tolerance, deal with situations where a complex system fails in arbitrary ways. We propose new implementation techniques for supporting different weak consistency levels in distributed client-server environments. Speedy transactions in multicore in-memory databases. and taught to every computer scientist and programmer, but she is far more distinguished than that: Barbara Liskov is an ACM Fellow, holds the ACM Turing Award, the IEEE John von Neumann Medal, and a couple of other awards, telltale of her influence on the field. We propose new implementation techniques for supporting different weak consistency levels in distributed client-server environments. http://www.eecs.mit.edu/spotlights/liskov_jvg-bio.html Laboratory for Computer Science, Cambridge, MA, 1987. Returning to California to do graduate work at Stanford, she was given financial support in John McCarthy’s lab partly because her earlier work on natural language translation was in the general area of artificial intelligence. This paper describes the decentralized label model, a new label model for control of information flow in systems with mutual distrust and decentralized authority.

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