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Topic: Confluence (computer science)


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In the News (Sat 19 Dec 09)

  
 Confluence - Wikipedia, the free encyclopedia
A property of rewrite systems in computer science.
A confluence is the merger or meeting of two or more objects (or subjects) that seem to inseparably bind their respective forces or attributes into a point of junction.
Confluence Holdings Corp. the largest manufacturer for canoes, kayaks and accessories worldwide.
en.wikipedia.org /wiki/Confluence   (194 words)

  
 fUSION Anomaly. Science Fiction
A confluence of scientists, computer programmers, authors, musicians, journalists, artists, activists and even politicians have adopted a new paradigm.
Then, in a bizarre self-fulfilling prophecy, the science fictional concept of a reality that can be consciously designed begins to emerge as a held belief--and not just by kids
reality called Cyberspace -- a consensual hallucination" accessed through the computer, where one's thoughts manifest totally, and reality itself conforms to the wave patterns.
www.fusionanomaly.net /sciencefiction.html   (194 words)

  
 Salon Books A Trotskyist libertarian cyberpunk?
A former computer programmer who has read his Marx carefully, MacLeod helps his own cause with an unremitting wit that makes poetry out of a happy confluence of technological and socialist jargon.
Maybe we should be glad that no one else in science fiction is concocting puns that mix dialectical materialism with nerd culture; there's no doubt that such jokes can get old fast.
Well, one of the fixtures of Macleod's fiction is the fact that technology has advanced to the point where humans can perpetually rejuvenate their bodies.
www.salon.com /books/feature/1999/07/27/macleod_review   (1039 words)

  
 Cognitive Science Program
It lies at the confluence of computer science, educational and cognitive development, linguistics, neuroscience, neurobiology, philosophy, psychology, and certain areas of mathematics.
Cognitive science has arguably been the most important development in the study of human thinking in the past twenty years; its influence can be seen across a wide variety of disciplines, from logic to communication disorders.
Cognitive learning strategies are grounded in theories of how children learn, think, remember, and solve problems, and are applied to knowledge domains that are included in school instruction (i.e., mathematics, science, reading, and writing).
www.cis.udel.edu /cogsci/program.html   (1039 words)

  
 VAN OOSTROM AND VENEMA
The level and the gist of the course is that of the standard text by Klop, ``Term Rewriting Systems" in the Handbook of Logic in Computer Science (Vol.2).
The course starts by introducing abstract rewriting systems, anda powerful confluence theorem (decreasing diagrams thm) for them.Next, the theory of orthogonality (independence of rewrite steps) will be introduced by means of an abstract rewrite system for braids.Typical topics in the theory of orthogonality are: confluence, permutation/shift equivalence, and optimality.
Confluence and Normalisation for Higher-Order Rewriting, F. van Raamsdonk, PhD thesis, VU.
www.coli.uni-sb.de /esslli/Seiten/Oostrom%20and%20Venema.html   (1039 words)

  
 Cye's HTML Book List: Old News!
This book contains a review of the current status of computer science and neuroscience and speculates on the confluence of the two in the future to the point where our minds may be downloaded into cyberspace or robots that will be more efficient (and longer lasting) than our human bodies.
This book is about the intersection of business, computer technology, and design and using design to bring order out of the chaos that technology is generating in the busines world.
In this book she takes you behind the scenes into the very details of how some of her favorite Web sites were created and implemented, describing in detail all of the technical elements as well as the how-tos, techniques, and tips.
www.wwwiz.com /books/old1996.html   (1039 words)

  
 143social
One new aspect of science communication in the cold fusion saga was the role of electronic communication (faxes, electronic mail, and computer bulletin boards) in the ongoing distribution of information about cold fusion.
But perhaps the saga of cold fusion itself may be explained by the confluence in a single case of all the things we already know.
When preprints of manuscripts by the BYU and University of Utah teams became available about a week after the public announcement, copies of the preprints were faxed and (after having been scanned into computer-readable format) e-mailed around the world.
blake.montclair.edu /~kowalskil/cf/143social.html   (1839 words)

  
 sd
Over the decades since the invention of the computer, it can be argued that the technophile “propeller heads” involved in open source have made many more truly significant advances in computer science than their closed source counterparts.
The confluence of open source and overseas outsourcing as open outsourcing is a model that will greatly improve the health of software development in general.
Outsourcing programmers and documentation specialists need to be educated about the importance of submitting their improvements to open source back to the core development group for that project.
kelly.anderson.name /openoutsourcing   (1960 words)

  
 Emergencies on campus: Numbers to call if something goes wrong - fyi - University Relations Publications - The University of Iowa
Water Proof: Hydraulics experts bring confluence of science and craftsmanship to enviornmental work
The 911 call also will appear on a computer screen in the DPS dispatch center.
When 911 is dialed, the Iowa City Police Department will receive the call and contact the University Department of Public Safety (DPS) using a dedicated line between the two departments if the incident is located on University property.
www.uiowa.edu /~fyi/issues2004_v42/12032004/emergency.html   (280 words)

  
 The TYPES Forum
TYPES is a moderated e-mail forum focusing on Type Theory in Computer Science, with a broad view of the subject encompassing semantical, categorical, operational, and proof theoretical topics, as well as algorithmic issues and applications.
Typed, untyped, or polymorphic lambda calculus; type checking, inference, and reconstruction; subtyping, dependent types, calculus of constructions, the lambda cube; linear logic, the Curry-Howard correspondence; recursive types; adequate and fully abstract models; domain theory; category theory; term reduction, normalization, confluence; abstract data types; type systems for object-oriented, concurrent, distributed, and mobile programming.
Comments and criticisms of results in the literature, open problems, and research queries are encouraged.
lists.seas.upenn.edu /mailman/listinfo/types-list   (644 words)

  
 barthe-hatcliff-thiemann-HOOTS97-abstract.txt
Title: Pure Type Systems for Impure Settings (Preliminary Report) Authors: Gilles Barthe, John Hatcliff, Peter Thiemann Source: Electronic Notes in Theoretical Computer Science Pure type systems and computational monads are two parameterized frameworks that have proved to be quite useful in both theoretical and practical applications.
A technical foundation for monadic type systems is laid by recasting and scaling up the main results from pure type systems (confluence, subject reduction, strong normalisation for particular classes of systems, etc) and from operational presentations of computational monads (notions of operational equivalence based on applicative similarity, co-induction proof techniques).
Essentially, monadic type systems inherit the parameterized higher-order type structure of pure type systems and the monadic term and type structure used to capture computational effects in the theory of computational monads.
www.cis.ksu.edu /~hatcliff/Papers/barthe-hatcliff-thiemann-HOOTS97-abstract.txt   (644 words)

  
 The Types Forum
TYPES is a moderated e-mail forum focusing on Type Theory in Computer Science, with a broad view of the subject encompassing semantical, categorical, operational, and proof theoretical topics.
Typed, untyped, or polymorphic lambda calculus; type checking, inference, and reconstruction; dependent types, calculus of constructions, the lambda cube; linear logic, the Curry-Howard correspondence; recursive types; adequate and fully abstract models; domain theory; category theory; term reduction, strong normalization, confluence; abstract data types, type systems for object-oriented programming.
Comments and criticisms of results in the literature, open problems, and research queries are encouraged.
www.dcs.gla.ac.uk /~types   (644 words)

  
 The TYPES Forum
TYPES is a moderated e-mail forum focusing on Type Theory in Computer Science, with a broad view of the subject encompassing semantical, categorical, operational, and proof theoretical topics, as well as algorithmic issues and applications.
Typed, untyped, or polymorphic lambda calculus; type checking, inference, and reconstruction; subtyping, dependent types, calculus of constructions, the lambda cube; linear logic, the Curry-Howard correspondence; recursive types; adequate and fully abstract models; domain theory; category theory; term reduction, normalization, confluence; abstract data types; type systems for object-oriented, concurrent, distributed, and mobile programming.
If an announcement does not obviously meet this criterion but would still be of interest to many Types readers, it may be prefaced with a brief note explaining its relevance.
lists.seas.upenn.edu /mailman/listinfo/types-list   (644 words)

  
 Distribution Theory in Computer Science
The confluence of two different disciplines, 'Theory des distributions' and the Lambda Calculus.'
An account of classification of distributions as Schwartz distributions and the rest as the Classical distributions (generalized functions).
The second applicability may be named as "the removal of the deficiencies of functions "observed in physics, technology etc. The present text carries the aspect of this later type of applications to describe a comprehensive account of new results concerning the value and limit as an operation on Schwartz distribution in one and several variables.
www.studiumpress.com /book_3.html   (371 words)

  
 Publications
Ghilezan : Applications of typed lambda calculi in the untyped lambda calculus, Logical Foundation of Computer Science LFCS'94, St.Petersburg, Russia (A. Nerode and Yu.
Ghilezan : Types and confluence in lambda calculus, Proceedings of the 3rd Panhellenic Logic Symposium, (PLS3) Crete, Greece.
Ghilezan : The correspondence between weak implicational logics and typed lambda calculus, Proceedings of The 1989 European Summer Meeting of ASL (Logic Colloquium), Berlin, Germany (1989), Journal of Symbolic Logic 57 (1992) 297.
www.cs.ru.nl /~silviagh/publications.html   (371 words)

  
 University of New England Biological Sciences - Facilities
In addition to the Marine Science Education and Research Center and Harold Alfond Center for Health Sciences, the University also has extensive computer resources as well as other laboratory and classroom facilities.
The Harold Alfond Center for Health Sciences is a state-of-the-art laboratory and educational facility.
The University Campus in Biddeford is a confluence of natural resources that has attracted and inspired students and faculty with an interest in the natural environment.
www.une.edu /cas/biological/facilities.html   (371 words)

  
 Chimera: Genetics and Culture
The first line of Ovid's Metamorphoses reads "My purpose is to tell of bodies which have been transformed into shapes of a different kind." Recent advances in genetic science and the confluence of computer, bio- and nano-technologies have opened up the possibility of a completely mutable universe, providing metamorphoses wholly different from those in Ovid.
Mythological monsters such as the Sphinx, Medusa, or the Chimera have traditionally embodied the mysteries of the unknown as well as the contradictions of that which is known, hence their hybrid nature and incomprehensible shape.
A monster represented as vomiting flames, and as having the head of a lion, the body of a goat, and the tail of a dragon.
www.viewingspace.com /genetics_culture/pages_genetics_culture/gc_w03/chimera.htm   (534 words)

  
 Catastrophe modeling - Wikipedia, the free encyclopedia
Cat modeling is especially applicable to analyzing risks in the insurance industry and is at the confluence of actuarial science, engineering, meteorology, and seismology.
Catastrophe modeling (also known as cat modeling) is the process of using computer-assisted calculations to estimate the losses that could be sustained by a portfolio of properties due to a catastrophic event such as a hurricane or earthquake.
Some cat models allow the user the option of including demand surge in the loss estimates, which is post-event inflation.
en.wikipedia.org /wiki/Catastrophe_modeling   (644 words)

  
 10
TYPES is a moderated e-mail forum focusing on Type Theory in Computer Science, with a broad view of the subject encompassing semantical, categorical, operational, and proof theoretical topics.
Typed, untyped, or polymorphic lambda calculus; type checking, inference, and reconstruction; dependent types, calculus of constructions, the lambda cube; linear logic, the Curry-Howard correspondence; recursive types; adequate and fully abstract models; domain theory; category theory; term reduction, strong normalization, confluence; abstract data types, type systems for object-oriented programming.
Needless to say, type theory is quite important programming language research.
lambda.buzzword.com /2000/09/10   (644 words)

  
 Reference.com/Encyclopedia/Pittsburgh, Pennsylvania
Carnegie Mellon University houses the first computer science school and the first drama school in the United States, both of which are widely considered to be among the best in their fields.
Pittsburgh lies at the confluence of the Monongahela River and Allegheny River, which merge to form the Ohio River, ultimately draining into the Mississippi River and Gulf of Mexico.
Pittsburgh is located at the center of a fairly expansive set of river valleys, and much of the city's residential population is situated on or near the slopes of those valleys with certain neighborhoods (particularly south of the Monongahela) nearly inaccessible by car during the winter.
www.reference.com /browse/wiki/Pittsburgh,_Pennsylvania   (2860 words)

  
 Categorical Term Rewriting: Monads and Modularity
Term rewriting systems are widely used throughout computer science as they provide an abstract model of computation while retaining a comparatively simple syntax and semantics.
As an application and demonstration of the usefulness of this approach, two modularity results for the disjoint union of two term rewriting systems are proven, the modularity of confluence (Toyama's theorem) and the modularity of strong normalization for a particular class of term rewriting systems (non-collapsing term rewriting systems).
In order to reason within large term rewriting systems, structuring operations are used to build large term rewriting systems from smaller ones.
www.lfcs.inf.ed.ac.uk /reports/98/ECS-LFCS-98-396   (277 words)

  
 Categorical Term Rewriting: Monads and Modularity
Term rewriting systems are widely used throughout computer science as they provide an abstract model of computation while retaining a comparatively simple syntax and semantics.
As an application and demonstration of the usefulness of this approach, two modularity results for the disjoint union of two term rewriting systems are proven, the modularity of confluence (Toyama's theorem) and the modularity of strong normalization for a particular class of term rewriting systems (non-collapsing term rewriting systems).
In order to reason within large term rewriting systems, structuring operations are used to build large term rewriting systems from smaller ones.
www.lfcs.inf.ed.ac.uk /reports/98/ECS-LFCS-98-396   (277 words)

  
 Term Rewriting Systems and Applications Research Page
Since then the subject of rewriting has become intimately connected with the development of computer science, in particular with the abstract data type methodology, automated theorem proving, and functional programming.
J.W. Klop together with Detlef Plump, Univ. of York, England) is currently conduction an investigation to confluence of rewriting of first-order term graphs, both for the usual presentation of term graphs and for the equational presentation.
The theory of rewriting systems has historical roots in the period when the fundamental notions of computation were discovered: recursion theory, lambda calculus, combinatory logic.
www.cs.ru.nl /~jwk/researchpage.trs.html   (277 words)

  
 ESSLLI 2005 - Introductory Course: Term Rewriting Systems
Term rewriting is a branch of theoretical computer science which combines elements of logic, universal algebra, automated theorem proving and functional programming.
The important properties of term rewriting systems that make this efficient reasoning possible are termination and confluence.
What distinguishes term rewriting from equational logic is that equations are used as directed replacement rules, i.e., the left-hand side can be replaced by the right-hand side, but not vice versa.
www.macs.hw.ac.uk /esslli05/giveabs.php?37   (277 words)

  
 Citations: Lecture Notes in Computer Science - Benninghofen, Kemmerich, Richter, Reductions (ResearchIndex)
....as output the string r 2 Sigma satisfying (r) 2 R. The f regular systems were considered by C. D unlaing in [ O D83] where he proved that confluence is undecidable for f regular systems that are length reducing.
The rewriting system R consists of a set rules of the form r where and r are words in Phi which represent the same element of G and r OE under a length reductive ordering OE (to be defined....
Also each 1 regular system is f regular, and each f regular system is c regular.
citeseer.ist.psu.edu /context/445899/0   (1262 words)

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