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Publié par | profil-urra-2012 |
Nombre de lectures | 14 |
Langue | English |
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0000 0000000 0110 0110010
0001 0001011 0101 0101110
0010 0010111 0011 0011100
0100 0100101 1110 1110100
1000 1000110 1101 1101000
1100 1100011 1011 1011010
1010 1010001 0111 0111001
1001 1001101 1111 1111111
3−1 = 2
(3 − 1)/2 = 1
1011011 1011010
a +a +a a +a +a1 2 3 3 4 5
a +a2 4
52 = 32 32
01010 a +a +a = 1 a +a +a = 1 a +a = 21 2 3 3 4 5 2 4
01010110 11000 11000001
linearbinarywingfollogetsastothein1.Consider,vnotNAMEitanswers.yyour(a)l?altheforMathexplanationiovide(atpr010,mustdeoumentYfit.ordsdto(a)rWhatois11000.theridawseighetnearestofwhicthissocohaddet?OneThebinarywy-ceighetTheofaraycouoydecoisaretheoneminimallowenWumordsbore27th.rMidtermofUrbana-Champ1'smayococcuringord,inhasnon-wberocociso1)dedecowifordsedofthatthedecoco11.dea;vhencetringsheretheitkiseequalpietoand3.r(b)alsoHoplayers,wwmandeyoulderrorsvcouldithiswcoedeindetecter.?phones,Hostrings,wouldmantoydecouldds.idotdecorrect01010?er.F,ollodowing,t3.heGroupformSpringulasandthatofwiseasadwwinbutctlaaneighsors,thewde,ehknoyouwdistancethat;theonecodesdeascouldonedetectreceivan1011ymeaningeineis'tdedwon10you2.errors,createsancodforcorrecte-digitansybndusingaparitalculator-heccsumsasicquip-bofacerror.nlyThisomeansonethatbidden.ifoaandsingle-digiteerretc.,o.rHoismanmadecoiswusew,ythehaonecocomputewfioucoereSimilarlygivthethededeordfulldeAnsw:Thered.mp3e-digitMobilewvobinarydso.w(c)haUsingeneacomputercoewsrt-neigh(b)briteorwndecocoding,wdecofordeand(orAnswexplainFwhalyoneycumentsouNocannotAprildecyoFde),theF1message18110110120071.aignAnswter.aTheIllinoimessageduringUniversitytransmissionthensonearest-neighcorrespbdingordedeordcosding.will,recocovwerfortheiscorrect.11 0
0
0 1
1
Both the left−hand circle and the bottom circle 1 10
are incorrect; so one switches the number that belongs
0 to both of them and not to the other circle, guessing that 0 0
the original message was 1100011, which is decoded
1 as 1100.
The message is again incorrect; since two circles
10 0 out of three look correct, one guesses that the
erroneous digit is the one that belongs only to 0
1 0 the third circle. Thus the guess is that the message
received was 1100011, which is decoded as 1100.1
a a +a +a +...+a 010 1 2 3 1
0
a 6+1+8+2+0+1+3+0+9+a = 29+a10 10 10
0 a = 110
6 + 1 + 8 + 0 + 1 + 1 + 4 + 0 + 5 + 2 = 28
a4
28+a 0 a = 24 4
{A,B} {A,C,D} {B,C,D}
correctissee:aordawhdeocoatthecorrectwhetherarey,satheretime,andhv(eacthe1100001oneends5.withAnswaoterandto.v(a)toFind,theelongsccoalitionshecwkappdigitumforthatthehZIP+4decobdewing61820-1309.ListAnswtheer.hThethec:hecisk-digitthe1000011er.dehmyustherebwitheonesucblohofthatedecohasto,dwhomethominimaldiagramtner,entellsVathewithUseso(b)suc1.and100110uisis1001theforotingord:45,43,7,5,1]wwinningdeRecallcowinningtheinthathobtainscriticalneofohereendsnine-digitwithedaer.e,hec,Dummso?odictatorneoterhaselongveocoalition,abnoguresimilarl.v(b)etoIsertohevekingntheumvboerne61801-1405-2novpalidhere.?dummIfisnot,escainnotingyequivousacborrthenesumctustheyerrorw?endsIfay,outhatknohaswinthatcothethefonurtmherdigit61821-1405-2.isConsiderincorrect,follocanvysystemou[54correct(a)theminimalerrorcoalitions.?er.Answthater.minimalThecoalitionssumthoseiswhicequaleactovisthe;not).listthatsucorcoalitions(b)isthereZIP+4dictatoraV,taddrAnswwithk-digitetoandocerUsingthater.Answ.1.Is100astring?theodeeencostovdpmethowdiagram?ennyVoterstheAnswUseA(a)isnvthatwhicvbdosmatter),evhereroterwinnngissodummisvdictatorzero;;ywaeoterdon'tvhapvweisneoughwhinfobrtomaerytcioncoalition,tofromrecolistvminimalerotingtheabcorrectvnoumcanbthater.oneIf,thishoowerevFinallyer,awyeoterknoonewdotnothearataRecallv(tcoalition4.his'sthealensametonyi3.g,his/herwhicotehesn'tdosoesn'tveEndawithyaoter.{A,B} {A,C} {B,C}
{A,B} {A,C} {B,C}
52 = 32
5 = 5.4/2 = 102
5
= 102
5
= 103
2.20 = 40
thesearetheer.tcanAoneandt,toalen;,hequivconareonessystemscomputegwandthenminimalotiAvthem,ohweigh;otes.in2theindexsecondAsystemlthehominimaltherewinningosecoalitionswinningareeagainthetaliwhether?cideadein,areovTorer.nAnswoandosed(explain)v?ptAnswalenmanequive.wSoformtheoterstcoweighoformvmotingpsystemsCha,vcoalitionseust20hweumsameinmiisndescribigivma!)lwinningwinningicoalitions,iswhicwhichA,impliesathatmoretheytoalessrextraetheseequivarealenaret.AOne3could(b)alsoephrasewthingsAdierenTtlyho,winningnoticingcritical,thatvintbyothofsystems+at-2motionare,passesmanexactlytionswhenA+3tvvoTvcoalitionoterskind,vcotewyamongesthere;tionsththem.usaretheatcontheditkind.ionvforcriticalacoalitions,motionptoindexpassoiserthetionssamewhicinAbcriticaloth(systems,eanddon'tthiseislisttheAnswsameTheascoalitionssawhyingcthatAthecriticalsthoseystemsharetainequivhaalenet.w7.tAthanwequaleigh8,tedstrictlyvthaoti5nvgSosystemcoalitihasnsvtheethatmemcompbofers.and(a)orHootherwoters.manComputeyh(distinct)Banzhafcoalitionsoaerrofe.thereer.?oAnswiner.wThereyarecoalitions,1,1]is1w:ha[2edistinctcouncoalitions.ho(b)manHocoawitionsmantheyA(distinct)2coalitionseighavrthereeandtherewinywhicalihofexactlyformtwwt-2ootersvare.otersovaoteofYESrst?oneAnswuster.hoTheretareoCeopleand5rstso:10,9,2]are[11:systemscoali-otingofvSimilarlythethereAreCwinningtheinkiofhsvcondeThisoierallorderisaccouninforwinningthesoinBanzhafsystemoforgeteroneoftoistheblolocoalitionswh(don'tcthattneedsatdoublevnisbcoof6.coalitionssucwhhccoalitions.a8.otConsiderrthecriticalvnotingtosystemt[8the:5,2,2,2,2,2].cking(a)inWhatiahrhesametheoterwinningcritical),24
For each permutation a circle indicates the pivotal voter.
A B C D B A C D C A B D D A B C
A B D C B A D C C A D B D A C B
A C B D B C A D C B A D D B A C
A C D B B C D A C B D A D B C A
A D B C B D A C C D A B D C A B
A D C B B D C A C D B A D C B A
Decimal digit 1 2 3 4 5 6 7 8 9 0
Bar code
5 5 5 84 3 8 8 6 ?
a 5+5+4+3+5+8+8+6+a +8 = 52+a9 9 9
0 a = 89
ting,oneobtainsthatv,notAsucandcBlongarevbgivothvpivAnswotalunreadableinan8bp9thermoutations,tedandythatZIP+4CpandTheDtheareofbnotothtablepivnootaleinco4mpforermeutations.[DividingendsbobtainyrecthethetotaldenutationsumTherebAnswerdeofbpdigitermsequeutations,aonedoobtainsondthatinthebShapley-ShAssumingubikerrorpmade,ostillwtheer:indexvofbthisthatsystemerisubik[8/24,8/24,4/24t,04oting/24]=[1/3,1/3,1/6,1/6].w10.aRecallwtGivhouatoforerpracticalcorrectpucor?ptooses,ermZIP+4arecoer.desoter.(alonger.withcotheirisccorrecthececausek-digit)9thareisprin(thetednceusingshortbarndcobarsdes,eswithcorrespCountow.ything.theromawogete).thethatZIP+4otherdehasaseeneenwbarcancorecodeerandcorrectdigitsde:theelodigitbhbleustaeththeeacinindexdonewisphShapley-Shwhichonsider,eIs:5,5,3,2],the1cosystemdevbeighelothewwithcorrecten?soIfenot,thatcanthe9.follFothiswingecorrespthatondencecorrectbcoetww55435-88688.