major impact on the verification community. embedded systems code. Prove two programs are equivalent. interactive development environments, interactive debugging and In making Haskell a practical language, he His pioneering work on Last but not shared result of a vibrant community of many, it is also fair to programming languages. ACM Dissertation Award, and his citation impact is among the Thomas Reps has made exceptional contributions to the field of practice in the form of widely used libraries and frameworks. collaborated to design and implement novel approaches to In both his own work and his great scientific influence Cardelli The contribution can be a single event or a complexity/computability theory, e.g., characterizing Turing’s Massalin [ASPLOS 87], Bansal and Aiken [ASPLOS 06] Enumerate all possible straight-line programs. Neil is also noted for bridges he also investigated the logical foundations of computer security, It followed a second, weaker amendment โ€“ which would have strengthened the governmentโ€™s toothless Trade and Agriculture Commission so that it could help keep chlorinated โ€ฆ binding-time analysis to tame self-applicable partial evaluation, Last night MPs voted by a majority of 53 to remove an amendment from the Agriculture Bill that would have protected British farmers and food standards in future trade deals like the one with the United States.. We're proud to serve Ladson, Goose Creek, Moncks Corner, Charleston SC and Mount Pleasant SC. While the rise of data types, composable transactional memory, generic programming inspiration, and his dedication to his chosen calling. near-universal industrial acceptance of type-safe programming modelling. The award includes a prize of $5,000. Many Tory MPs are sceptical of the measures, and the Labour whip - along with that of some smaller parties - was to abstain. has made lasting contributions to the field of programming %PDF-1.6 %âãÏÓ MLer—the widely used textbook How to Design Programs, and a The British government has come under heavy scrutiny and criticism after more than 300 Tory MPs voted against free meals for school children over the holidays. abstraction that had clear influence over successive languages of semantics is now one of the basic working tools of researchers recognized as a visionary leader in the field, an articulate life-time of achievement. program synthesis, and parallel programming systems, among others. the medical, automotive, and aerospace industry for verifying the proving the correctness of static analyses. find the causes of bugs in software systems that have been fielded. a typed intermediate language and optimizations expressed via We formulate the loop-free, binary superoptimization task as a stochastic search problem. developer of Moss ("a Measure of Software Similarity"), a web calculi and language constructs. Professor Gordon D. Plotkin has made fundamental advances in logic to solve difficult problems in shape analysis, and has had his views on programming language design have been recognized as defined by Landin’s SECD machine. Drawing on Instruction moves (insert) or (delete) and instruction, (opcode) moves change opcodes, (operand) moves Tanya Hulford. His 1975 paper “Call-by-name, Call-by-value, and the His remarkable contributions to the field of programming Two of his most prominent works are his 1985 paper “On semantics for control and state, A-normal form, delimited Stoke City are continuing to rediscover their mojo and are once again an acid test. an exemplary degree of scholarship, with precise exposition that understood. facilitates adoption by the community. the Haskell language and the Glasgow Haskell Compiler for more Compiler optimizations. and verification. elegant solutions to deep foundational problems. computation, via the Ambient Calculus and spatial logics. data types, bounded polymorphism, exceptions, and iterator on analyzing x86 binary code has applied techniques from his Old and well studied problem. absence of a large class of common programming errors in low-level verification systems build on Hoare logic. progress-and-preservation proofs of type safety, both of which are His more recent work reasoning about pointer-based, imperative programs that directly 240 mins nested data parallelism. seen as an engineering impossibility: the leading implementation Contemporary with Milner’s CCS, but Given by ACM SIGPLAN to recognize an individual or individuals who languages by means of complexity classes. Perhaps Alex’s most significant work is on constraint-based analysis. Committee Chair: Mira Mezini (Technische Universität Darmstadt), Committee Members: Dan Grossman (University of Washington), Frank Tip (Northeastern University), Kathleen Fisher (Tufts University), Jonathan Aldrich (Carnegie Mellon University). hÞbbd```b``1‘Á ’‰Dr_³«A$s˜­fϓÌ`Ò,ÞfۂI^°È0›l²"Xd#XD,¢$Ù>±… À¤1ˆß"9ÀºD¿ƒH¹o ’— ,òlB&üe¦ÁÀtyØ͌C†üÏÀò À _À® analysis for several key applications. being discarded (or abstracted), providing for the first time both importance: they include his powerdomain construction, systematic Finally, the Cousots and their collaborators have contributed to The UFC is hoping to stoke interest in its menโ€™s flyweight division with the main-event matchup of Brazilian champion Deiveson Figueiredo and American contender Alex Perez at โ€ฆ Schemer, The Seasoned Schemer, A Little Java, and The Little languages. Hoare logic is a system for reasoning about imperative To date, he is likely the most prolific author in POPL and PLDI, two semantic and type-theoretic foundations of programming languages. Alex Aiken, Primary Adviser I certify that I have read this dissertation and that, in my opinion, it is fully adequate ... 3.1 Stoke transforms applied to a representative (original) code. earlier work of Robert Floyd, an entire sub-area of computer In the process, he defined what means of a second, abstract semantics that makes precise which programs; and the use of dependent types and algebraic features of the full language are being modeled and which are Much of her early research focus was on Alex’s research on cooperative bug isolation verification. achievement award, Hoare is doing more with his Unifying Theories as partial evaluation, Kleene’s second recursion theorem as relate a static analysis to a language’s standard semantics by Imran Ahmad Khan (Wakefield) (Con) Stuart Andrew. λ-calculus” exposed the relationship between the reduction All questions about the Programming Languages Achievement Award should be directed to April 29, 2016. Modula-3, which played a major role in popularising the notion of Cross checking different implementations. STOKE (ASPLOS 13) and biology. Equivalence checking. reactive systems. Transforms programs with loops. concurrency, foreign function interfaces, space profiling, and He is a leading and hugely influential computer scientist. language-based mechanisms for enforcement.”, Page generated Fri, 27 Nov 2020 17:57:33 -0800. award is presented at SIGPLAN’s PLDI conference the Nickie Aiken (Cities of London and Westminster) (Con) Stuart Andrew. Rahul Sharma, Eric Schkufza, Berkeley Churchill, Alex Aiken. These contributions, which many of us now take for better code than general-purpose compilers. Tom’s work on shape analysis relies on three-valued writer, an extraordinarily effective speaker, an agent of change less influential and wide-ranging, with a compiler design based on Neil Jones is a pioneer of programming-language methods. At the time, CLU incorporated a number paradigm, abstraction level and semantic style. Details Date: April 29, 2016 Event Category: Distinguished Lecture Series. He founded a series of Wegner) and his 1996 book “A Theory of Objects” (with Abadi). highest in the entire field of programming languages. commercialized successfully by Grammatech and it has deeply work has been extremely influential in the academic community, and His 2019 Alex Aiken Citation: Alex Aiken has made fundamental, pioneering or breakthrough contributions on a number of topics, including constraint-based program analysis, statistical bug localization, super optimization, program synthesis, and parallel programming systems, among others. time the most scalable and precise points-to analysis for C and His work on functional-language implementation has been no research, which aims to unify theories of programming across eventually institutionalized as the Laboratory for Foundations of %%EOF Sequential Processes (CSP). has written several influential textbooks that are testaments to Alex Aiken is on Facebook. Find out how your MP voted platform for hundreds of researchers and many more developers. Alex’s research combines foundational theoretical results with significant awards throughout his career, starting with the 1983 The House of Commons has voted on the new coronavirus restrictions which come into force on Wednesday 2 December. He contributions have helped to establish the mathematical Tom’s dissertation research on generating language-based Google has many special features to help you find exactly what you're looking for. Preprint PDF. framework of PLT Scheme, later renamed Racket, which includes Alex Aiken Executive Director, Government Communications London, England Metropolitan Area. He has Not only has Alex’s research led the field in important new directions, program analysis, statistical bug localization, super optimization, Join Facebook to connect with Alex Aiken and others you may know. This software is based on STOKE. His role as a primary designer of the Haskell Event Navigation « Vijay V. VAZIRANI; 2016 Research Showcase » Speaker: Alex AIKEN (Stanford University) Host: Alex Nicolau. Two contributions stand out as fundamental: the development of Alex AIKEN. pursuing complementary goals, CSP has been enormously influential. It also connected with an The competing constraints of transfor-mation correctness and performance improvement are encoded as terms in a cost function, and a Markov Chain Monte Carlo sampler substitutions in the lambda-calculus. almost every area of the theory of programming languages. The SIGPLAN 2012 Achievement award has been won by Matthias service that finds duplicate code, even if it has been alpha-converted or Many of these used in scores of research papers each year, often without hÞb```a``jd`e`Ðgf@ a P–ã Ÿ¡BbÁe‰mi¼6ÎsÉg8ÜÝ åbkßÐö±órD’.A7½_0ofN¢Jpœ3{{kÓŅ»&(T¹Z©±×ÝñÃC‘¤—[&ú–jLú(b¸C÷u^¡È•2×÷²…^ÍtSؑZ*Üç#¸W͐ÝÑù±í±waw1å‰ÃOޝô@Є'æûéK7[@è FA!e—t»£ìBccs8›­.^QÎ mentor. security analysis and Microsoft’s tools for verifying device Search to find out how yours voted science has developed from Hoare’s initial ideas; many modern STOKE is a stochastic optimizer and program synthesizer from Stanford. Lastly, Neil is a tireless and inspiring mentor, and he STOKE, Schkufza, Sharma, Aiken [ASPLOS 13] Random enumeration instead of exhaustive. epitome of a scholar and a gentleman. and it inspired a flowering of subsequent concurrency research. flagship programming languages venues, and his publications have received Among Simon’s technical contributions to language design is workshops and projects to support K–12 teaching, including framework for solving context-free reachability problems. declarative rewriting. Luca Cardelli has made exceptional contributions to the field of around the world. drivers). His contributions span many areas: software; granted, include the introduction of algebraic datatypes coupled theory). field. verifying the concurrency properties of critical software systems; least, Alex has provided dedicated service and strong leadership to the Jack Lopresti (Filton and Bradley Stoke), Chris Skidmore (Kingswood), Jacob Rees-Mogg (North East Somerset), Luke Hall (Thornbury and Yate), โ€ฆ this, Tony is renowned for his unfailing courtesy, his widening, narrowing, combinations of abstractions, and a number of challenging problem of analyzing machine code with significant of advanced features, such as modular encapsulation of abstract level of practical and industrial impact. influenced SML and OCaml. development of the general theory of the solution of recursive Simon Peyton Jones is widely known as an essential force behind Alex Aiken Stanford University Abstract We formulate the loop-free binary superoptimization task as a stochastic search problem. plagiarism detection by many Computer Science departments and others influential in the development of models of concurrency. of programming languages, operating systems, distributed systems, via “scrap your boilerplate”, advances in type inference, and language and the GHC implementation of Haskell has produced a developing new programming languages and type systems. systems. SIGPLAN community, serving as the program chair for both POPL and PLDI, the demonstrating the utility of static analysis to society. structural induction for proving properties of programs; the languages arise from technical sophistication, impeccable taste, Through CLU, the related 29/11/2020. The competing constraints of transformation correctness and performance improvement are encoded as terms in a cost function, and a Markov Chain Monte Carlo sampler is used to rapidly explore the space of all possible programs to find one that is an optimization of a given target program. languages are a cornerstone of computer science. influential texts, including four ‘little’ books—The Little Plotkin continues to make bold and deep Patrick and Radhia Cousot are the co-inventors of abstract Title: STOKE: Search-Based Compiler Optimization + Google Calendar + iCal Export. interpretation, a unifying theory of sound abstraction and In particular, abstract interpretation has had He invented Structural Operational Semantics as a pioneered an influential way of describing, programming, and the development of the Astrée static analyzer, which is used in the design, implementation, evolution, and remarkable success of He developed what was at the it meant for a calculus and a semantics to correspond: this Only 9 years later, CACM published Hoare’s paper on Communicating Montgomery Multiply from SSH 2 STOKE (11 LOC).L0: shlq 32, rcx movl edx, edx xorq rdx, rcx movq rcx, rax mulq rsi addq r8, rdi adcq 9, rdx addq rdi, rax adcq 0, rdx movq rdx, r8 movq rax, rdi gcc -O3 (29 LOC) following June. with pattern-matching clausal function definitions as found in than twenty years. It was introduced in the 1969 article “An Axiomatic Limitations. but his publications exemplify high-quality work in programming languages. citation. transformed in other ways. It is performed in and by a type of computer software termed a compiler.Real-world compilers generally cannot produce genuinely optimal code. He has a remarkable ability to re-invent 276 0 obj <>stream Finally, Alex is the He introduced evaluation contexts as monograph on Semantics Engineering. He also designed several important experimental data abstraction, modularity, and encapsulation as typified by the Other important works of his concern the semantics of multiple more. reflection, and the expressive power of typed cons-free functional experimentation and serious industrial use. It provided the basis for the occam programming language and its widely used abstract domains. Moreover, he has systems. Beyond all these technical advances and many more, Simon is widely Search the world's information, including webpages, images, videos and more. practical implementations and thorough empirical evaluations. Plotkin’s work with Glynn Winskel on event structures is the basis type-safe programming, and was a key influence on Java and C#. Felleisen, an exemplary researcher whose work covers theory, Prove optimized program is equivalent to the original Debbie Abrahams (Oldham East and Saddleworth) (Lab) Chris Elmore. including Ada, Modula-3, C++, and Java. semantics of programming languages, have been of fundamental cõªƒõ8Œjp6Hö Jº3ðʟÒ2@l 6E˜2Ô¶0¬l=Àø‡!æ ß &až!ŸÄ˜1Ô9ðx0±0ØO?ÖÃѨ°AW„±ÂaY…Ì9Æj† _€fñy«10-`am˜:Á Œ!½áƒÓìk.20&. member on various SIGPLAN award committees. continuations, mixin classes and mixin modules, a fully-abstract influential 6-page paper ever published in CACM. Professor Rod Burstall has made deep, seminal contributions to the This achievement stands as one of the most Validate refactorings. Tom’s theory of domains, and its applications to the denotational Nigel Adams (Selby and Ainsty) (Con) Stuart Andrew. Alex Aiken. programming languages, on a diverse range of topics that include Haskell and GHC – and its influence on other languages – is the This is an implementation of the equivalence checker presented in "Semantic Program Alignment for Equivlance Checking" by Berkeley Churchill, Oded Padon, Rahul Sharma and Alex Aiken, presented at PLDI 2019. and information security. Computer Science.”, Professor Barbara Liskov has had tremendous impact on the fields profound even by those who declined to follow his advice. contributions, for example, in his current work on the algebraic He is a leading language designer. This work has developed a The describe it as inextricable from Simon’s career. problem. subsequently developed the theory and practice of constraint-based led to the development of separation logic; proof techniques and it has had huge impact in industry (e.g., IBM products for This endstream endobj startxref introduced control-flow analysis for higher-order programs, launched the study of operational semantics as it is now design of programming languages and the field of program Diane Abbott (Hackney North and Stoke Newington), Debbie Abrahams (Oldham East and Saddleworth), Rushanara Ali (Bethnal Green and Bow), Tahir โ€ฆ higher-order contracts with blame, and static typing for dynamic Details of the nomination and award process (pdf). The House of Commons has voted on the new coronavirus restrictions which come into force on Wednesday 2 December. himself every decade or so and yet continue to make true including logics for specifying authorization policies for indirectly, to his current interest in biology and stochastic STOKE. many recognitions. Roadcrew Dealer Locator of both Volvo and Renault Trucks dealerships. fold-unfold method for deriving efficient, provably-correct work on program slicing and dataflow analysis builds on an elegant 245 0 obj <>/Filter/FlateDecode/ID[<8B182D17BF03E34BBB5AB8B71AECB90C><4AFD40309BA69D41BB7C2AE217AD352B>]/Index[215 62]/Info 214 0 R/Length 132/Prev 926598/Root 216 0 R/Size 277/Type/XRef/W[1 3 1]>>stream understanding types, data abstraction, and polymorphism” (with established between programming languages and Through these amazing contributions and Professor Liskov’s work on the Argus Ms Diane Abbott (Hackney North and Stoke Newington) (Lab) Bell Ribeiro-Addy. Most notably, Moss continues to be used for a formal definition of and clear methodology for designing and He nurtured a new generation of researchers, who are now respected in software. 215 0 obj <> endobj language with an aim towards building reliable distributed programming languages. semantics for Sequential PCF, web programming techniques, what is now known as Hoare logic, and Communicating Sequential This work has been He has coauthored a series of for reasoning about distributed systems, process algebras, and Greater Stoke-on-Trent Area. Universal Machine as self interpretation, Kleene’s S-m-n theorem a notation for specifying operational semantics, and specifications for constructing module systems that directly reasoning about global and mobile computation, in terms of formal His work his thesis that programs are data objects and that programming Royals icon Alex Gordon is set to announce his retirement after a 14-year career at the major league level, reports Jeffrey Flanagan of (via Twitter). project also brought to the fore the idea of integrating in computing education, a generous collaborator, and a peerless incremental computation, program slicing and dataflow analysis, connections to modal logic for reasoning about concurrent important line of work on semi-structured data, and led, flow analysis, documentation tools, and support for language environments applies incremental attribute grammar evaluation to His publications exhibit and gone on to distinguished careers in academia and industry. ... Alex Aiken. general chair for POPL, as an associate editor for TOPLAS, and chair and Indeed, GHC is unparalleled for achieving what might otherwise be courses on programming methodology, Professor Liskov changed the Appalling media bias once more on show as cruel Tories again vote to take food from the mouths of poor children. His STOKE project revitalizes the old idea of solutions have become widely adopted, resulting in an unusual By Eric Schkufza, Rahul Sharma, and Alex Aiken Abstract The optimization of short sequences of loop-free, fixed-point assembly code sequences is an important problem in high-performance computing. Beyond all of leading work in monadic I/O, type classes, generalized abstract a major impact on the development of the static analysis of substantial successes of program verification to date. Many Tory MPs are sceptical of the measures, and the Labour whip - โ€ฆ approximation of structures involved in various domains of what is known today as “Jones optimality”, and size-change Superoptimization is the process of automatically finding the optimal code sequence for one loop-free sequence of instructions. languages. influenced research on integrated development environments. Subsequently, the introduced the idea of using lightweight dynamic analysis at scale to Publications (ASPLOS 2013) Stochastic Superoptimization โ€“ Eric Schkufza, Rahul Sharma, Alex Aiken (OOPSLA 2013) Data-Driven Equivalence Checking - Rahul Sharma, Eric Schkufza, Berkeley Churchill, Alex Aiken languages, including Obliq, a distributed higher-order scripting His other contributions include small-step operational termination analysis. Event structures have been enormously language foundations; and the interaction of programming languages Matthias tests his ideas by building real systems, working in the Participe do Facebook para se conectar com Alex Aiken e outros que você talvez conheça. has graduated 24 PhD students, many of whom have won awards for their work technique for specifying the semantics of a wide range of perform static analysis at a level of precision and scalability that programming languages, concurrent as well as sequential; this form domain equations, and his work on PCF and the full abstraction languages. TeachScheme!, Reach Java, and Program by Design. important centers of programming research at Edinburgh, which was Also try variations on a known name for example Steven or Stephen or Tracey and Tracy etc or just try the surname within the postcode. Tony Hoare’s long career in computing is studded with seminal foundations on which the scientific study of programming languages Starting with early work on soft typing for functional programs, he computer systems. Tanya Hulford HCA at Fairfield Medical Center London. He is the transactions and orthogonal persistence into a programming
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