Head-Order Techniques and Other Pragmatics of Lambda Calculus Graph Reduction
Head-Order Techniques and Other Pragmatics of Lambda Calculus Graph Reduction

Author: Nikos B. Troullinos

Publisher: Universal-Publishers

Published: 2011-10

Total Pages: 250

ISBN-13: 1612337570

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Available in Paperback Available in eBook editions (PDF format) Institution: Syracuse University (Syracuse, NY, USA) Advisor(s): Prof. Klaus J. Berkling Degree: Ph.D. in Computer and Information Science Year: 1993 Book Information: 248 pages Publisher: Dissertation.com ISBN-10: 1612337570 ISBN-13: 9781612337579 View First 25 pages: (free download) Abstract The operational aspects of Lambda Calculus are studied as a fundamental basis for high-order functional computation. We consider systems having full reduction semantics, i.e., equivalence-preserving transformations of functions. The historic lineage from Eval-Apply to SECD to RTNF/RTLF culminates in the techniques of normal-order graph Head Order Reduction (HOR). By using a scalar mechanism to artificially bind relatively free variables, HOR makes it relatively effortless to reduce expressions beyond weak normal form and to allow expression-level results while exhibiting a well-behaved linear self-modifying code structure. Several variations of HOR are presented and compared to other efficient reducers, with and without sharing, including a conservative breadth-first one which mechanically takes advantage of the inherent, fine-grained parallelism of the head normal form. We include abstract machine and concrete implementations of all the reducers in pure functional code. Benchmarking comparisons are made through a combined time-space efficiency metric. The original results indicate that circa 2010 reduction rates of 10-100 million reductions per second can be achieved in software interpreters and a billion reductions per second can be achieved by a state-of-the art custom VLSI implementation.

Central European Functional Programming School
Central European Functional Programming School

Author: Anna Soós

Publisher: Springer

Published: 2008-09-27

Total Pages: 309

ISBN-13: 3540880593

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This volume presents the revised lecture notes of selected talks given at the second Central European Functional Programming School, CEFP 2007, held June 23–30, 2007 at Babe ̧ s-Bolyai University, Cluj-Napoca, Romania. The summer school was organized in the spirit of the advanced progr- ming schools. CEFP focuses on involving an ever-growing number of students, researchers,andteachersfromcentral,andeasternEuropeancountries.We were glad to welcome the invited lecturers and the participants: 15 professors and 30 students from 9 di?erent universities. The intensive program o?ered a creative and inspiring environment and a great opportunity to present and exchange ideas in new topics of functional programming. The lectures covereda wide range of topics like interactive work ?ows for the Web, proving properties of lazy functional programs, lambda calculus and - stract lambda calculus machines, programming in ? mega, object-oriented fu- tional programming, and refactoring in Erlang. We are very grateful to the lecturers and researchers for the time and the e?ort they devoted to the talks and the revised lecture notes. The lecture notes were each carefully checked by reviewers selected from experts of functional programming. Afterwards the papers were revised once more by the lecturers. This revision process guaranteed that only high-quality papers are accepted in the volume of the lecture notes.

Abstract Computing Machines
Abstract Computing Machines

Author: Werner Kluge

Publisher: Springer Science & Business Media

Published: 2005-12-02

Total Pages: 382

ISBN-13: 354027359X

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The book emphasizes the design of full-fledged, fully normalizing lambda calculus machinery, as opposed to the just weakly normalizing machines.

Graph Reduction
Graph Reduction

Author: Joseph H. Fasel

Publisher: Springer Science & Business Media

Published: 1987-10-07

Total Pages: 58

ISBN-13: 9783540184201

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This volume describes recent research in graph reduction and related areas of functional and logic programming, as reported at a workshop in 1986. The papers are based on the presentations, and because the final versions were prepared after the workshop, they reflect some of the discussions as well. Some benefits of graph reduction can be found in these papers: - A mathematically elegant denotational semantics - Lazy evaluation, which avoids recomputation and makes programming with infinite data structures (such as streams) possible - A natural tasking model for fine-to-medium grain parallelism. The major topics covered are computational models for graph reduction, implementation of graph reduction on conventional architectures, specialized graph reduction architectures, resource control issues such as control of reduction order and garbage collection, performance modelling and simulation, treatment of arrays, and the relationship of graph reduction to logic programming.

Lambda Calculus with Types
Lambda Calculus with Types

Author: Henk Barendregt

Publisher: Cambridge University Press

Published: 2013-06-20

Total Pages: 969

ISBN-13: 1107276349

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This handbook with exercises reveals in formalisms, hitherto mainly used for hardware and software design and verification, unexpected mathematical beauty. The lambda calculus forms a prototype universal programming language, which in its untyped version is related to Lisp, and was treated in the first author's classic The Lambda Calculus (1984). The formalism has since been extended with types and used in functional programming (Haskell, Clean) and proof assistants (Coq, Isabelle, HOL), used in designing and verifying IT products and mathematical proofs. In this book, the authors focus on three classes of typing for lambda terms: simple types, recursive types and intersection types. It is in these three formalisms of terms and types that the unexpected mathematical beauty is revealed. The treatment is authoritative and comprehensive, complemented by an exhaustive bibliography, and numerous exercises are provided to deepen the readers' understanding and increase their confidence using types.

Distributed Computing
Distributed Computing

Author: Fred B. Chambers

Publisher:

Published: 1984

Total Pages: 352

ISBN-13:

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This book aims to give a basic grounding in each of the areas covered. The dataflow approach to parallel computation, declarative languages and their evaluation, loosely-coupled distributed systems (do not share immediate memory), closely-coupled distributed systems (share common memory), and modeling and verifying concurrent systems. The individual articles included were the results of research conducted as part of the Distributed Computing Systems program of the U. K. Science and Engineering Research Council from 1977-1984. This book should be of interest to researchers and practitioners in the field, academic and industrial, and serve as an introductory text for new researchers.