61. Agner Erlang Université Montpellier II Translate this page agner erlang (1878-1929). Cette image et la biographie complète en anglais résident sur le site de l’université de St Andrews Écosse http://ens.math.univ-montp2.fr/SPIP/article.php3?id_article=1107

62. Queueing Theory: Information From Answers.com agner Krarup erlang, a Danish engineer who worked for the Copenhagen Telephone Exchange, published the first paper on queueing theory in 1909. http://www.answers.com/topic/queueing-theory

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Technology Wikipedia Best of Web Mentioned In Or search: - The Web - Images - News - Blogs - Shopping queueing theory Technology queuing theory The study of how systems with limited resources distribute those resources to elements waiting in line, and how those elements waiting in line respond. Examples include the distribution of cars on highways (including traffic jams), data through computer networks and phone calls through voice networks. Queuing theory is a complex area of engineering that is closely related to traffic engineering. See queuing and traffic engineering methods Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); queueing theory Introduction Queueing theory (sometimes spelled queuing theory ) is the mathematical study of waiting lines (or queues ). There are several related processes, arriving at the back of the queue, waiting in the queue (essentially a storage process), and being served by the server at the front of the queue. It is applicable in transport and telecommunication . Occasionally linked to ride theory Agner Krarup Erlang , a Danish engineer who worked for the Copenhagen Telephone Exchange, published the first paper on queueing theory in

63. Science -- Sign In dates back to the turn of the century and the work of a Danish mathematician named agner erlang, who derived a formula expressing the fraction of calls http://www.sciencemag.org/cgi/content/full/281/5385/1947

You do not have access to this item: Full Text : Taubes, NETWORKS:Fractals Reemerge in the New Math of the Internet, Science You are on the site via Free Public Access. What content can I view with Free Public Access If you have a personal user name and password, please login below. SCIENCE Online Sign In Options For Viewing This Content User Name Password this computer. Help with Sign In If you don't use cookies, sign in here Join AAAS and subscribe to Science for free full access. Sign Up More Info Register for Free Partial Access including abstracts, summaries and special registered free full text content. Register More Info Pay per Article 24 hours for US $10.00 from your current computer Regain Access to a recent Pay per Article purchase Need More Help? Can't get past this page? Forgotten your user name or password? AAAS Members activate your FREE Subscription

64. Golem.de - Lexikon Translate this page Dieser Artikel basiert auf dem Artikel agner Krarup erlang aus der freien agner Krarup erlang wuchs in ärmlichen Verhältnissen in Lonborg auf und wurde http://lexikon.golem.de/Agner_Krarup_Erlang

News Forum Archiv Markt ... Impressum Lexikon-Suche Lizenz Dieser Artikel basiert auf dem Artikel Agner Krarup Erlang aus der freien Enzyklopädie Wikipedia und steht unter der GNU Lizenz für freie Dokumentation . In der Wikipedia ist eine Liste der Autoren verfügbar, dort kann man den Artikel bearbeiten Letzte Meldungen Intel plant Sicherheitsfunktionen mit Vanderpool Western Digital bekommt neuen CEO ... Originalartikel Lexikon: Agner Krarup Erlang Agner Krarup Erlang 1. Januar in Lonborg 3. Februar in Kopenhagen ) war ein Mathematiker Warteschlangenprobleme in der Telefonie . Nach Vorschlag von David George Kendall Erlang nach Agner Krarup Erlang benannt. Erlang entwickelte die in der Nachrichtenverkehrstheorie viel verwendete Erlang-Verteilung Beispielsweise kann mittels der Erlang B Callcenter berechnet werden - die Erlang C Callcenteragenten Leben Lonborg Kopenhagen von Kopenhagen mit Auszeichnung und begann sein Studium mit Hilfe eines Stipendiums Er studierte Mathematik und Naturwissenschaften geometrische Probleme zu interessieren. Nach seiner Promotion im Jahr Wahrscheinlichkeiten zu interessieren. Zu dieser Zeit traf er den Chef-

65. Erlang - Definition: ITWissen.info - IT-Lexikon Translate this page benannt nach dem dänischen Mathematiker agner Krarup erlang (1878 bis 1929). Das erlang, auch Traffic Unit (TU) und Verkehrseinheit genannt, http://www.itwissen.info/?id=31&ano=01-004452

66. Erlang.no [Andreas Åkre Solberg] agner Karup erlang (18781929) was a Danish mathematican who developed a theory of stochastic processes in a statistical equilibrium. http://erlang.no/

Erlang.no Agner Karup Erlang (1878-1929) was a Danish mathematican who developed a theory of stochastic processes in a statistical equilibrium. His theories are widely used in the telecommuncations industry. rsyncbackup.erlang.no ⋯ rsyncbackup is a backup solution created on top of rsync. rsyncbackup is GPL licenced and run on every operating system which is perl-capable and contain a rsync binary. tv.erlang.no ⋯ This is a norwegian TV guide showing the current TV programme on NRK1, NRK2, TV2 and TVN. solweb.no solweb.no ⋯ My blog. mac.solweb.no ⋯ Norwegian mac users. Here are a register of mac users in norway and how to get in contact with them. quiz.solweb.no ⋯ Tr¸nderQUIZ. A quiz for people living in Trondheim, Norway.

67. Commentary: Mathematics Of Lines From Bill Hammack's Engineering & Life Radio Pr agner Krarup erlang, figured out how to direct telephone calls to unused phone lines. Here s what erlang learned that is relevant to your life. http://www.engineerguy.com/comm/4022.htm

Commentary Mathematics of Lines: A Public Radio Commentary by Bill Hammack Listen using RealAudio I'm sure that this week you've been trapped in a slow moving line, likely for last minute gift shopping, or to return something. As an engineer, I have some good news for you about making those lines move faster. It comes from a branch of engineering called "queuing theory." It began in 1909 at the Copenhagen Telephone Company when an engineer there, Agner Krarup Erlang, figured out how to direct telephone calls to unused phone lines. This is exactly the same as a check out line. You showing up to check out is like a phone call arriving, and an available cashier is like an open telephone line. Here's what Erlang learned that is relevant to your life. To keep the lines moving it would seem that the store should just measure the number of people arriving in a typical hour and then assign enough cashiers so that usually everyone will be served quickly. Erlang showed that this was a recipe for checkout line gridlock. He learned that people are as likely to arrive at one time as another, but precisely when they arrive is random. This means that people will arrive in bunches, not spaced out evenly. So, if stores have just the right number of cashiers for the average number of shoppers in an hour, the store will, at times, have too few cashiers, resulting in long waits. The solution is to combine the separate lines into one huge line, and let that line feed to more than one cashier. You see this used at airports and in banks. It works because there is a random chance you'll be behind someone who causes a delay: Someone, say, who needs a price check. If that delay happens when you're in a line for a single cashier you'll be delayed, but imagine if you were in that one line that fed, say, three cashiers. The only time you'd be delayed is when people in front of all three cashiers are delayed. This makes the single line about three times faster than having one line per cashier.

68. Les Hommes Des Unités : Agner Erlang-2 Translate this page http://www.utc.fr/~tthomass/Themes/Unites/Hommes/erl/Erlang_2.html

69. Stochastic Processes And Queuing Models, Queueing Theory - Numericana Reallife problems involving random variables. erlang formulas. n and P was worked out by the Danish scientist agner Krarup erlang (1878-1929) AK erlang http://home.att.net/~numericana/answer/stochastic.htm

home index units counting ... physics Final Answers , Ph.D. Stochastic Models, Queuing Theory Poisson Processes : Random arrivals happening at a constant rate (in Bq). Simulating a poisson process is easy with a uniform random number generator. Markov Processes : When only the present influences the future... The Erlang B Formula assumes callers don't try again after a busy signal. Markov-Modulated Poisson Processes may look like Poisson processes. Related articles on this site: Combinatorics and Probability Viswanath's constant is the mean growth in random additions and subtractions. Utility Functions and Decision Analysis Stochastic Processes, Stochastic Models Poisson processes and the becquerel (Bq) SI unit: What's a simple way to define a Poisson process? If a so-called arrival keeps occurring with probability l dt in the infinitesimal time dt, then the process of such arrivals is called a Poisson process when l does not change over time (and a modulated Poisson process otherwise). In the International System of Units (SI) where times are expressed in seconds (s), the proper unit for the parameter l is the becquerel (Bq), the SI unit of

70. Erlang Programming Language - A Whatis.com Definition Definition erlang programming language Named for the Danish mathematician agner Krarup erlang, the language was developed by the Ericsson Computer http://searchvb.techtarget.com/gDefinition/0,294236,sid8_gci212072,00.html

Home Glossary Definition - Erlang programming language EMAIL THIS PAGE TO A FRIEND Glossary - powered by whatis.com BROWSE ALPHABETICALLY: A B C D ... Z Search for: in ALL GLOSSARY DEFINITIONS ALL SEARCHVB Full Target Search with Google Erlang programming language Also see erlang , a unit of telephone traffic. Erlang is a programming language designed for developing robust systems of programs that can be distributed among different computers in a network. Named for the Danish mathematician Agner Krarup Erlang, the language was developed by the Ericsson Computer Sciences Lab to build software for its own telecommunication products. In use for a number of years at Ericsson and other companies, Erlang is taught in over 80 universities and colleges world-wide and is freely available as open source code. Erlang is similar to Java in that it uses a virtual machine and supports multithreading . However, whereas the Java development community focuses on Web applications, Erlang is aimed at the market for extremely robust servers and embedded systems. Erlang is described as a functional programming language, meaning that it emphasizes the evaluation of expressions rather than the execution of commands. The expressions use functions to derive basic values. (Two other well-known programming models are

71. A. K. Erlang Biography agner Krarup erlang (January 1, 1878 February 3, 1929) was a Danish mathematician, statistician, and engineer who invented the fields of queueing theory http://www.biographybase.com/biography/Erlang_A_K.html

Biography Base Home Link To Us Search Biographies: Browse Biographies A B C D ... Z A. K. Erlang Biography Agner Krarup Erlang (January 1, 1878 - February 3, 1929) was a Danish mathematician, statistician, and engineer who invented the fields of queueing theory and traffic engineering. Erlang was born at Lonborg (Lønborg), near Tarm, in Jutland. He was the son of a schoolmaster and with his maternal mathematical ancestor Thomas Fincke, he demonstrated his potential from an early age by being able to read books upside down. He passed the Preliminary Examination offered by the University of Copenhagen, with distinction, at age 14, after receiving dispensation to sit because he was younger than the usual minimum age. For the next two years he taught alongside his father. With a distant relative providing free board and lodgings, he prepared for and sat the University of Copenhagen entrance examination in 1896, which he passed with distinction. He won a scholarship to the University of Copenhagen and majored in mathematics, but also studied astronomy, physics and chemistry. He graduated in 1901 with an MA and subsequently taught at several schools over the next 7 years. He maintained his interest in mathematics and received an award for one paper that he submitted to the University of Copenhagen. He was a member of the Danish Mathematicians' Association and through this met amateur mathematician Johan Jensen, the Chief Engineer of the Copenhagen Telephone Company, an offshoot of the International Bell Telephone Company. Erlang subsequently obtained employment with the company in 1908. He worked for the Copenhagen Telephone Company for almost 20 years, until his death in Copenhagen after an abdominal operation.

72. Encyclopedia: A. K. Erlang Other descriptions of AK erlang. agner Krarup erlang (January 1, 1878–February 3, 1929) was a Danish mathematician, statistician, and engineer who invented http://www.nationmaster.com/encyclopedia/A.-K.-Erlang

Supporter Benefits Signup Login Sources ... Pies Related Articles People who viewed "A. K. Erlang" also viewed: Erlang distribution Erlang unit A.K. Erlang Telecommunications traffic engineering ... Haganah What's new? Our next offering Latest newsletter Student area Lesson plans Recent Updates Humanitarian response to the 2004 Indian Ocean earthquake Hu Jintao Hookah Hilary Duff ... More Recent Articles Top Graphs Richest Most Murderous Most Taxed Most Populous ... More Stats Encyclopedia: A. K. Erlang Updated 208 days 3 hours 5 minutes ago. Other descriptions of A. K. Erlang Agner Krarup Erlang January 1 February 3 ) was a Danish mathematician statistician , and engineer who invented the fields of queueing theory and traffic engineering Erlang was born at Lonborg (Lønborg), near Tarm , in Jutland . He was the son of a schoolmaster and with his maternal mathematical ancestor Thomas Fincke , he demonstrated his potential from an early age by being able to read books upside down. He passed the Preliminary Examination offered by the University of Copenhagen , with distinction, at age 14, after receiving dispensation to sit because he was younger than the usual minimum age. For the next two years he taught alongside his father.

73. Encyclopedia: Queueing Theory agner Krarup erlang (January 1, 1878–February 3, 1929) was a Danish mathematician, statistician, and engineer who invented the fields of queueing theory and http://www.nationmaster.com/encyclopedia/Queueing-theory

Supporter Benefits Signup Login Sources ... Pies Related Articles People who viewed "Queueing theory" also viewed: Queuing theory Queue Erlang distribution Priority queue ... Welfare economics What's new? Our next offering Latest newsletter Student area Lesson plans Recent Updates Humanitarian response to the 2004 Indian Ocean earthquake Hu Jintao Hookah Hilary Duff ... More Recent Articles Top Graphs Richest Most Murderous Most Taxed Most Populous ... More Stats Encyclopedia: Queueing theory Updated 33 days 21 hours 58 minutes ago. Other descriptions of Queueing theory This article needs to be wikified . Please format this article according to the guidelines laid out at Wikipedia:Guide to layout Contents Introduction Application of queueing theory to telephony References See also ... External link Introduction Queueing theory (sometimes spelled queuing theory ) is the mathematical study of waiting lines (or queues ). There are several related processes, arriving at the back of the queue, waiting in the queue (essentially a storage process), and being served by the server at the front of the queue. It is applicable in transport and telecommunication . Occasionally linked to ride theory For queueing people, see queue area. ...

74. Queueing Theory History AK (agner Krarup) erlang published his first paper on queueing theory in 1909. erlang was an Danish engineer who worked for the Copenhagen Telephone http://www2.uwindsor.ca/~hlynka/qhist.html

History of Queueing Theory Last updated: February, 2005. I NEED HELP. If you have made a long or an important contribution on the theory of queues, please send me some details so I can credit you. This page will be expanded as I get more information. If you have a good overview of the history of queueing theory, send me information, please. The history of queues goes back to primitive man. Below is an early queue which is described in the bible. Edward Hicks' "Noah's Ark" A.K. (Agner Krarup) Erlang published his first paper on queueing theory in 1909. Erlang was an Danish engineer who worked for the Copenhagen Telephone Exchange. A history of Erlang and an English translation of his work can be found in the scarce "The Life and Works of A.K. Erlang" by E. Brockmeyer, H.L. Halstorm and Arne Jensen. (1948) This "book" is actually "Transactions of the Danish Academy of Technical Sciences (ATS) 1948, No. 2. According to Jouni Karvo's PhD dissertation (2002), "Traffic intensity is dimensionless, but C.C.I.F. (Comit Consultatif International Telephonique, a predecessor of ITU-T and C.C.I.T.T.) decided in 1946 that Erlang is used as the traffic unit to honour A. K. Erlang's work." A good summary of the history of queueing theory up to 1961 can be found in Thomas Saaty's "Elements of Queueing Theory," 1961, pp. 20-25. This book has a bibliography of 910 items. Neuts' Matrix Geometric Solutions in Stochastic Models (1981) lists 315 bibliographic items, most subsequent to Saaty's list. Gross and Harris' Fundamentals of Queueing Theory (1998) lists 267 items, most subsequent to Neuts.

75. FAQ On Queueing Theory When did mathematical queueing theory start? agner Krarup erlang (ref. An Introduction to Queueing Theory, by Kashyap and Chaudhry, 1988, p. http://www2.uwindsor.ca/~hlynka/qfaq.html

FAQ on Queueing Theory FAQ=frequently asked questions Last updated: July 20, 1999. Q: What is a queue and what is queueing thory? A: According to The American College Dictionary, a queue (as a noun) is (1) a braid of hair worn hanging down behind, (2) a file or line of persons, etc. As a verb, "to queue" means to form a line while waiting for something. The etymology is from the Latin coda, meaning tail. QUEUEING THEORY is the mathematical study of waiting lines. For a further discussion of queueing theory, go to "Definitions of Queueing Theory" Q: What is the proper spelling "queueing" or "queuing?" A: They are both correct spellings. The vast majority of queueing theory researchers use "queueing." On the other hand, most American dictionaries and spell checkers prefer the spelling "queuing." The list of well known researchers who use "queueing" includes P. Brill, J.W. Cohen, R. Cooper, D.R. Cox, D. Gross, F. Haight, C. Harris, B. Hnedenko, L. Kleinrock, M. Neuts, E. Parzen, N. Prabhu, S. Ross, T. Saaty, L. Takacs, R. Wolff. In addition, INFORMS, NSERC (Natural Sciences and Engineering Research Council of Canada), CORS (Canadian Operations Research Society), and the journal Queueing Systems: Theory and Applications, all use "queueing" in their publications.

76. Manucorp.com - Encyclopédie : Erlang erlang, le langage de programmation; agner Krarup erlang, un ingénieur et mathématicien danois http://www.manucorp.com/encyclopedie/Erlang

Manucorp.com EASYPHP Telechargements Forum PHP'In Up PHP Les cours La doc La doc PEAR La doc Smarty ... Recherche MYSQL Base PHP/MySQL Doc MySQL Tout sur MySQL APACHE Apache SSL Virtual Host Htaccess Perl ... Tout sur Apache INFORMATIQUE IA NEWS All HTML EasyPHP PHPIndex Freshmeat ... LinuxFr POWERED BY Accueil Le contenu de cette page est un minuscule extrait de l'encyclopédie gratuite en ligne Les élections du conseil d'administration de la Wikimedia Foundation sont terminées. Résultats préliminaires sur la page des résultats Erlang Un article de Wikipédia, l'encyclopédie libre. Cette page d'homonymie Voir: Erlang , une unité de mesure de trafic en télécommunication Erlang , le langage de programmation Agner Krarup Erlang , un ingénieur et mathématicien danois Contenu extrait de wikipedia MEMBRES login: pass: Valider Inscription OUTILS Webcron PHP->HTML ARCHIVES Listes PHP General PHP Windows PHP France ... PHP Bugs VERSION EasyPHP 1.8 PHP 5.0.4 MySQL 4.1.11 Apache 2.0.54 ... phpMyAdmin 2.6.2 LE SITE Livre d'or Fil de News les logos WishList ... Wikipédia:Portail Informatique

77. 2004 President's Address - Full Text - The IEE Analysis of the performance of such systems is based on the work early in the 20th century of the Danish mathematician agner erlang. http://www.iee.org/TheIEE/President/PA04/full_text.cfm

@import "/styles/dropdown.css"; Login or Register Shop Help A-Z ... Home Search: The IEE About the IEE Membership Business Partners ... Contacts President's Address Presidents Address 2004 - Full Text 'SET THE AGENDA'. Or in full, 'SET THE AGENDA for the knowledge economy'. It is, of course, something of an 'Eats shoots and leaves' title. It admits different interpretations according to punctuation and stress. 'Set the agenda' could be me advocating that we should do so. 'SET, the agenda' could be me proposing to expound what I think is or should be the agenda for SET - for Science, Engineering and Technology. Or, indeed, is it simply a tautology? Well. This is by no means the first time I've used a title redolent in ambiguity, equivocation or imperspicuity. My PhD submission, some few years ago now, had the academically erudite sounding - even perhaps pretentious - title of: Topics in Random Signal Theory . With the self confidence that comes with the passage of time I can now perhaps admit that more accurately it might have been: Random Topics in Signal Theory!

78. PC World - Programmering Med Mindre Kode agner Krarup erlang var en dansk matematiker, der levede i 1878 til 1929. erlang var en af opfinderne bag teorien om teletrafik og en køteori til brug i http://www.pcworld.dk/default.asp?Mode=2&ArticleID=2770&SegmentID=7007

79. EducationGuardian.co.uk | EG Weekly | A New British System Of Units Who remembers agner Krarup erlang? Great chatup line that s going to be down at the local disco Hello. My name is erlang. I am famous. http://education.guardian.co.uk/egweekly/story/0,5500,1223463,00.html

@import url(/external/styles/global/0,14250,,00.css); Skip to main content Read today's paper Sign in Register Go to: Guardian Unlimited home UK news World news Newsblog Archive search Arts Books Business EducationGuardian.co.uk Film Football The Guide Jobs Life MediaGuardian.co.uk Money The Observer Online Politics Shopping SocietyGuardian.co.uk Sport Talk Travel Audio Email services Special reports The Guardian The northerner The wrap Advertising guide Crossword Soulmates dating Headline service Syndication services Events / offers Help / contacts Feedback Information GNL press office Living our values Newsroom Reader Offers Style guide Travel offers TV listings Weather Web guides Working at GNL Guardian Weekly Money Observer Public Tools Text-only version Send it to a friend Save story Opinion A new British system of units Peter Knight is tired of waiting for greatness to be thrust upon him ... so he has invented his own unit of measurement Tuesday May 25, 2004 The Guardian A career in science is like any other. You want to succeed. Thirty years ago, when I started out into the world with a well-earned degree in physics, I knew what I wanted. Like Indiana Jones, I thought the only things worth having were "fortune and glory". Unfortunately there was a snag. The opportunities for either fortune or glory in electrical properties of solid state organic materials were slender even on good days. In fact, the only real chance to impress the girls at the sort of cocktail parties I wasn't going to be invited to anyway was to win the Nobel prize or to have something named after you.

80. Dick Grune's Annotated Literature Lists (erlang = Ericsson Language, but also named in honor of agner Krarup erlang, who pioneered in telephone traffic statistics.) erlang code is first translated http://www.cs.vu.nl/~dick/Summaries/CS/PrologImplementation.html

Prolog Implementation Literature references and annotations by Dick Grune, dick@cs.vu.nl . Last update: Wed Jun 8 21:56:02 2005. These references and annotations were originally intended for personal use and are presented here only in the hope that they may be useful to others. There is no claim to completeness or even correctness. Each annotation represents my understanding of the paper at the moment I wrote the annotation. No guarantees given; comments and content criticism welcome. Todd A. Proebsting, "Simple translation of goal-directed evaluation", in 1997 ACM SIGPLAN Conf. Programming Language Design and Implementation ACM SIGPLAN Notices , #5, May 1997, pp. 1-6. Ilyas Cicekli, "An intelligent backtracking schema in a logic programming environment", ACM SIGPLAN Notices , #3, March 1997, pp. 42-49. Paul Tarau, Koen De Bosschere, Bart Demoen, "Partial translation Towards a portable and efficient Prolog implementation technology", J. Logic Programming , #1-3, pp. 65-83. Oct.-Nov. 1996, N. Zhou, "A novel implementation method for delay", in Joint International Conference and Symposium on Logic Programming , MIT Press, Cambridge, Mass., pp. 97-111. 1996

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