Even-Rodeh coding Contents Encoding Examples See also References Navigation menu"Economical encoding of commas between strings"10.1145/359460.359480e

Lossless compression algorithms


universal codeShimon EvenMichael Rodehnon-negative integer




Even-Rodeh code is a universal code encoding the non-negative integers developed by Shimon Even and Michael Rodeh.[1]




Contents





  • 1 Encoding


  • 2 Examples


  • 3 See also


  • 4 References




Encoding


To code a non-negative integer N in Even-Rodeh coding:


  1. If N is not less than 4 then set the coded value to a single 0 bit. Otherwise the coded value is empty.

  2. If N is less than 8 then prepend the coded value with 3 bits containing the value of N and stop.

  3. Prepend the coded value with the binary representation of N.

  4. Store the number of bits prepended in step 3 as the new value of N.

  5. Go back to step 2.

To decode an Even-Rodeh-coded integer:


  1. Read 3 bits and store the value into N.
    • If the first bit read was 0 then stop. The decoded number is N.

    • If the first bit read was 1 then continue to step 2.


  2. Examine the next bit.
    • If the bit is 0 then read 1 bit and stop. The decoded number is N.

    • If the bit is 1 then read N bits, store the value as the new value of N, and go back to step 2.



Examples












































NumberEncodingImplied probability
00001/8
10011/8
20101/8
30111/8

4100 01/16
5101 01/16
6110 01/16
7111 01/16

8100 1000 01/256
9100 1001 01/256
︙
15100 1111 01/256

16101 10000 01/512
︙
2761100 1100 101011001001 01/1,048,576
︙


See also


  • Elias omega (ω) coding


References




  1. ^ Even, Shimon; Rodeh, Michael (April 1978). "Economical encoding of commas between strings". Communications of the ACM. 21 (4): 315–317. doi:10.1145/359460.359480..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em









-

Popular posts from this blog

Solar Wings Breeze Design and development Specifications (Breeze) References Navigation menu1368-485X"Hang glider: Breeze (Solar Wings)"e

Ace MagicMainair BladeMainair RapierP&M ExplorerP&M GT450P&M PulsRPegasus QuantumPegasus QuikSolar Wings AceSolar Wings BreezeSolar Wings FeverSolar Wings RumourSolar Wings RushSolar Wings ScandalSolar Wings StormSolar Wings TyphoonSolar Wings Whisper Solar Wings aircraftHang gliders Britishhigh-winghang gliderSolar WingsManton, WiltshirealuminumDacroncable bracedkingpostaspect ratio Solar Wings Breeze Role Hang glider National origin United Kingdom Manufacturer Solar Wings Introduction 1996 Status Production completed Unit cost £2,038 (2004) The Solar Wings Breeze is a British high-wing, single-place, hang glider that was designed and produced by Solar Wings of Manton, Wiltshire starting in 1996. Now out of production, when it was available the aircraft was supplied complete and ready-to-fly. [1] [2] Design and development The Breeze was designed as an easy to fly intermediate glider. It is made from aluminum tubing, with the double-surface wing covered in Dacron s...
Read more

Kathakali Contents Etymology and nomenclature History Repertoire Songs and musical instruments Traditional plays Styles: Sampradayam Training centers and awards Relationship to other dance forms See also Notes References External links Navigation menueThe Illustrated Encyclopedia of Hinduism: A-MSouth Asian Folklore: An EncyclopediaRoutledge International Encyclopedia of Women: Global Women's Issues and KnowledgeKathakali Dance-drama: Where Gods and Demons Come to PlayKathakali Dance-drama: Where Gods and Demons Come to PlayKathakali Dance-drama: Where Gods and Demons Come to Play10.1353/atj.2005.0004The Illustrated Encyclopedia of Hinduism: A-MEncyclopedia of HinduismKathakali Dance-drama: Where Gods and Demons Come to PlaySonic Liturgy: Ritual and Music in Hindu Tradition"The Mirror of Gesture"Kathakali Dance-drama: Where Gods and Demons Come to Play"Kathakali"Indian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceMedieval Indian Literature: An AnthologyThe Oxford Companion to Indian TheatreSouth Asian Folklore: An Encyclopedia : Afghanistan, Bangladesh, India, Nepal, Pakistan, Sri LankaThe Rise of Performance Studies: Rethinking Richard Schechner's Broad SpectrumIndian Theatre: Traditions of PerformanceModern Asian Theatre and Performance 1900-2000Critical Theory and PerformanceBetween Theater and AnthropologyKathakali603847011Indian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceBetween Theater and AnthropologyBetween Theater and AnthropologyNambeesan Smaraka AwardsArchivedThe Cambridge Guide to TheatreRoutledge International Encyclopedia of Women: Global Women's Issues and KnowledgeThe Garland Encyclopedia of World Music: South Asia : the Indian subcontinentThe Ethos of Noh: Actors and Their Art10.2307/1145740By Means of Performance: Intercultural Studies of Theatre and Ritual10.1017/s204912550000100xReconceiving the Renaissance: A Critical ReaderPerformance TheoryListening to Theatre: The Aural Dimension of Beijing Opera10.2307/1146013Kathakali: The Art of the Non-WorldlyOn KathakaliKathakali, the dance theatreThe Kathakali Complex: Performance & StructureKathakali Dance-Drama: Where Gods and Demons Come to Play10.1093/obo/9780195399318-0071Drama and Ritual of Early Hinduism"In the Shadow of Hollywood Orientalism: Authentic East Indian Dancing"10.1080/08949460490274013Sanskrit Play Production in Ancient IndiaIndian Music: History and StructureBharata, the Nāṭyaśāstra233639306Table of Contents2238067286469807Dance In Indian Painting10.2307/32047833204783Kathakali Dance-Theatre: A Visual Narrative of Sacred Indian MimeIndian Classical Dance: The Renaissance and BeyondKathakali: an indigenous art-form of Keralaeee

Image
Parai AttamNatarajaTandavaRasa lilaLasyaBollywood song and danceHindi dance songsNautchAndhra PradeshAssamHimachal PradeshOdishaPunjabTamil NaduMizoramKerala KalamandalamKerala Lalitakala AcademyKerala Sangeetha Nadaka Academy, ThrissurKerala Folklore AcademyKshetram vadyamKuzhal PattuMappila PaattuPanchari melamPanchavadyamPandi MelamParisha VadyamPulluvan PaattuSopanamThayambakaKerala mural paintingKalaripayattuSarpa KavuTharavadTemplatesPortalCategoryWikiProject KathakaliTheatre in IndiaArts of KeralaClassical theatre of india Malayalamclassical Indian danceMalayalamKeralaCEHindu templesPuranasNatya ShastraNatya ShastraBharataShivaMalayalamKeralaShivaKrishnaKrishnaJayadevaoperaticKrishnaVishnuRamaShivaSuryaYudhishthiraArjunaNalaRavanaDushasanaHiranyakashipuSitaHanumanGarudaHamsaGuṇaSamkhyaHindu philosophysign languagemudrasUnnayi VariyarplaywrightsNalaDamayantimusical modeChristianityMiguel de CervantesJohann Wolfgang von GoetheWilliam ShakespeareGurukulTravancorePalakkadBrahmi...
Read more

Method to test if a number is a perfect power? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Detecting perfect squares faster than by extracting square rooteffective way to get the integer sequence A181392 from oeisA rarely mentioned fact about perfect powersHow many numbers such $n$ are there that $n<100,lfloorsqrtn rfloor mid n$Check perfect squareness by modulo division against multiple basesFor what pair of integers $(a,b)$ is $3^a + 7^b$ a perfect square.Do there exist any positive integers $n$ such that $lfloore^nrfloor$ is a perfect power? What is the probability that one exists?finding perfect power factors of an integerProve that the sequence contains a perfect square for any natural number $m $ in the domain of $f$ .Counting Perfect Powers

Image
Proof of work - 51% attack Would it be possible to dictate a bech32 address as a list of English words? How do I find out the mythology and history of my Fortress? Sentence order: Where to put もう Is there any word for a place full of confusion? Do wooden building fires get hotter than 600°C? What does it mean that physics no longer uses mechanical models to describe phenomena? Project Euler #1 in C++ How fail-safe is nr as stop bytes? Why does it sometimes sound good to play a grace note as a lead in to a note in a melody? How to draw/optimize this graph with tikz How much damage would a cupful of neutron star matter do to the Earth? What would you call this weird metallic apparatus that allows you to lift people? Importance of からだ in this sentence "Lost his faith in humanity in the trenches of Verdun" — last line of an SF story A term for a woman complaining about things/begging in a cute/childish way How to ...
Read more