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楼主 |
发表于 2008-3-18 13:10:54
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你好,这是我现在正在写着的程序,以上问题就在其中,请多指教
, Y1 D9 s# T/ X$ u m7 O6 z1 r4 Xglobals[1 g2 Z0 u/ I. A2 B- Y# d2 o; j
xmax
! M8 q" I! R5 f" `) R9 w; z& oymax
) J0 ~" H" l* h; Iglobal-reputation-list8 B1 O* f+ Z- i" a! s2 c" o
7 n& O% z7 D* @+ D! D! ?( t;;每一个turtle的全局声誉都存在此LIST中
" }/ F5 k1 T, }( D; [credibility-list
* x! H S" _* n- j# @6 @( r;;每一个turtle的评价可信度
0 Z9 |) D9 J) |honest-service) `7 C) T7 B, A& T7 R; O' B7 U4 [
unhonest-service
! D0 K5 a% _* ?& G. r8 @oscillation* r9 t1 f9 v+ x4 l' v
rand-dynamic
0 h" z2 c8 T; c5 A' T1 s]: h; a% Y1 f+ S0 p) Z, o) m: K2 q/ `
! U# A+ w3 a- c9 M
turtles-own[
2 H) m/ K& x0 ztrade-record-all
{+ O5 z3 p" R- g# F, l;;a list of lists,由trade-record-one组成
; R: b# s$ x& N+ h2 Ptrade-record-one
! P! h; a& Z$ R1 U2 S. };;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]! D% [( _9 L [' i4 ^9 O7 X
trade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
& h6 q/ s3 m" n/ }. |! Xcredibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list D: A7 o+ L. E5 Y1 ^! V
neighbor-total
0 c! |1 ` l2 ~3 C" O' N" z;;记录该turtle的邻居节点的数目8 C, w( ~ m. Q7 g) E! g
trade-time
- k9 w3 h% h$ I3 u7 ~: x;;当前发生交易的turtle的交易时间# _! y2 N3 A0 d
appraise-give( c A( K! K4 M% q. g4 S& O4 W
;;当前发生交易时给出的评价
- [& j, m4 q C3 ]- G" wappraise-receive
% p1 M v1 O, [; ^2 E0 f, N# D;;当前发生交易时收到的评价
6 o3 E6 A" y% d/ x* Bappraise-time, ?: r, s/ Q8 ?0 t A& f$ r
;;当前发生交易时的评价时间. ~" N% A, @7 H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 ~" c# r) C2 ^$ r( ytrade-times-total
3 q; R1 l. ^( \3 I5 k. e% {;;与当前turtle的交易总次数( ]4 R- C0 f7 K5 {# }2 \- Z
trade-money-total
7 R% |* `: k; U8 G;;与当前turtle的交易总金额' U5 P# \0 t! ~9 [" A
local-reputation9 H A1 _4 G* E4 g( J3 {6 ^3 r% L
global-reputation
0 U% ]2 h4 f, g! J: Ecredibility
) ?* N- k, x1 ]$ |; G |+ o! R;;评价可信度,每次交易后都需要更新2 P; H$ g7 S! N( b t7 |6 V8 y
credibility-all- [, s9 \- I' m! h- c1 b! L
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
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1 \+ g( l: v: C: `0 P! Q# W% M% _! w;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.58 H/ d8 V2 h% J: @- \$ o" z" N
credibility-one
1 h3 ^* n# Y* I* D6 N. b' L' };;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
* @% U. q+ W, d$ q7 V! P, g' oglobal-proportion8 s- C" i9 t0 Z1 o" [* R! ?# d7 @5 ]
customer: O, U7 T2 U) v( q b3 K
customer-no2 w: S0 g$ }. q% z2 g
trust-ok
% Y* \/ ^ p/ _% Strade-record-one-len;;trade-record-one的长度0 k) [8 r& D% ?
]
6 Q$ _) @6 m$ {" ? q& f+ z5 Z4 h, e; m: x b! M- p5 @9 {: ~7 m* d
;;setup procedure
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to setup
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ca
! F, ~- e1 Q; m' [2 _% Q
- J- t! H# Q1 ^/ @' X9 Q# \initialize-settings
7 {( q2 n9 u" ?3 B4 i% n0 Z$ K, p5 e2 p0 C
crt people [setup-turtles]
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2 T# v" Y8 M c* freset-timer
& h9 H. O9 y2 @2 T8 Y2 ]: e$ M8 |. o/ W/ l
poll-class0 l* o8 |6 Z, c3 G; S
& b/ j" n% m8 d0 b; c$ X+ ]4 bsetup-plots2 ~' L# N) u8 c. C
3 S5 Q7 A# C9 ]9 a. l
do-plots. r, z! V! R! }1 T# K1 u2 S1 p) _7 c
end1 ?3 X# X4 p! W! l% u8 V& m" x
% M9 @1 A. O, @) }& G9 d- T* W- qto initialize-settings
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set global-reputation-list []
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' N& I8 X$ z# K( E* J5 sset credibility-list n-values people [0.5]
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set honest-service 0
( W q! ~. n0 H0 B7 ~7 `( h& w3 H Y
set unhonest-service 01 {$ R9 l1 ]. H, |
4 b9 x4 G- ~; m& i' ]
set oscillation 0 @0 ]: M- ^6 T) e% R X
2 k' j1 V' {8 S0 r' P+ K0 v7 C T
set rand-dynamic 0
' ^; I$ V- Q' f* Jend- T! ~ I6 ]/ L! d. z, g# c! P z4 j
& N9 {/ Y5 n7 L( Xto setup-turtles
: U w6 s1 _& J: S. x6 fset shape "person": F& j) j9 j# I
setxy random-xcor random-ycor; R# Z% s1 A- v2 }' J0 O/ ^+ H- j
set trade-record-one []
% C8 E* z3 y+ f4 q( M7 W, @$ o, M/ ^2 V7 R L% n2 H/ R2 w2 }
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 C# i: J2 C5 K0 ]
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set trade-record-current []
- K. M: G# V# N; k& Yset credibility-receive []
9 O9 l. U$ u x" L0 P7 q+ u* Nset local-reputation 0.5
# g5 A/ J0 ?; W8 Rset neighbor-total 0, F) z8 ]# Q+ f3 W6 Q
set trade-times-total 0" n M, ^# f1 p3 T/ k7 x% I3 W
set trade-money-total 0) A ?* m7 Y# r; q V) ~5 c9 P: V) O
set customer nobody
$ J8 c- P$ P# D: |( }. O& b3 C, Lset credibility-all n-values people [creat-credibility]/ ?1 b6 V- h d- ]5 [" t
set credibility n-values people [-1], n/ b; v) {1 r! u# S' m- |' _: P" E
get-color; `5 s$ H1 k+ \4 \: O q
. D2 r% B( ~+ A% ~) E' k; o8 j
end
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to-report creat-credibility& g: q/ s; e; [
report n-values people [0.5]9 X4 y6 y: O4 \4 \8 C" b, V7 H
end
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& X6 [0 Y7 {5 T6 {8 Y1 Tto setup-plots
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# C8 A G4 S; q4 l9 W: `set xmax 30' Z t4 S* W* K2 f
; i: e4 B; s0 W ~* w% z9 vset ymax 1.0
* U- x4 x8 p0 Q7 Z
1 O, p1 ? A" W+ rclear-all-plots
% w5 p \0 [% y( v
( q+ K" l9 G; g! [2 osetup-plot13 v+ o2 W: w# N" ^
: s+ D% g3 q/ f; R: t1 T& K( p+ v
setup-plot2
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setup-plot37 e0 x6 Z: Z) |" F: k+ L- a4 T
end
& U w" U* T' Z# l( S; j+ [' ]4 ~6 t! N5 p( M( P. u, W
;;run time procedures
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to go
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ask turtles [do-business]4 {2 D2 W$ j3 T& G, j* u. C' N
end: G$ u" {& q( H
8 N% s8 `- Z$ l" j/ Qto do-business / N/ T- c+ [) M- s
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rt random 360' m- r4 f' {& A& {. i
, b b( r$ O4 \* |
fd 16 p9 p7 P5 H! C( v
# ~3 x* p+ Y% L/ B' d# n: \ifelse(other turtles-here != nobody)[! Y4 {% V) y7 s8 U7 @' e
8 j5 q9 E2 a1 hset customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)$ m% Y6 ?5 k8 L5 p3 u( y2 ^
[trade-record-all]of self3 }+ o: @8 Z: u _/ A
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
: U& c% N+ v4 D% h& G[trade-record-all]of customer
& A/ a ?. s8 ]* A# l+ X; c7 H* B5 `7 r, J$ ?
set [trade-record-one-len] of self length [trade-record-one] of self- U- ]: w. x7 e- A7 L
' B% l4 y- l* x( Q/ Uset trade-record-current( list (timer) (random money-upper-limit))4 r( K- b0 ]. V( u$ b
# J$ K0 r U. d# T5 L7 V. i
ask self [do-trust]' r& Q; o& y N$ x( A) ]( `
;;先求i对j的信任度% E Q- V& c/ L( }9 C
1 A8 l# C+ }5 B1 Z$ p0 e6 I
if ([trust-ok] of self)
; X; O- s2 a3 s- R2 O: L9 X;;根据i对j的信任度来决定是否与j进行交易[! J' ?4 ?) \" o5 p3 p) G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
, P6 u* \% {% `( z) W+ {8 R& e# V4 `6 a- N% q1 S
[: }; ?. l* \: A$ w7 O1 ?
: d! n1 K! h" d8 T" j
do-trade* W: u3 T+ p: q2 C3 Z, a
( R. S }! b- E% |" @
update-credibility-ijl
; M# {; f2 j" T2 M' Z8 c) \: m' B* M# Q+ Z
update-credibility-list2 m& w1 }9 t& M7 `6 c2 z
$ H( O$ [2 y4 I( G% B
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update-global-reputation-list8 q; @6 x. v! t* Z
" N N6 W! c6 l$ b5 K8 l6 {5 h
poll-class
( e: K/ X3 k! M5 m7 T/ {! V9 S, k5 x: ^- t) _
get-color
% i% Y; H! m9 J" a5 D/ E5 [- l; W# x
]]/ R5 U( U: R) X# T) `0 J U
- d, X- Y2 p, u) u, U# U" Q;;如果所得的信任度满足条件,则进行交易+ n8 w9 F$ `" m* ^1 _
9 _( |6 J$ ^5 L5 ~+ T
[
2 N$ V. _ t3 H* E
* j/ @+ ^$ d: hrt random 360
% g* S- f& v" f9 r, R- Y) X: Q) W' n) c
fd 1
1 i# K4 Y$ N0 R0 o% h2 ~
* l1 B, W3 O5 V: w' j& h9 @]
( y4 n6 x6 A, F. I4 y1 S, u: v% Z1 U: b* r0 ^
end* F. ]+ A, b6 e: D( @" O0 c" |
0 R- L. N$ H' |; r( J8 W0 mto do-trust & i; {4 j% N! r
set trust-ok False7 R& }9 `/ f1 z
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let max-trade-times 0- M [6 ]3 V& a( v% F# ?( g
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; }* Z% g" ~) c) s* X3 g5 V" _
let max-trade-money 0. [- g& c: G( G) X9 C) B
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( }9 ~, z6 [1 ?0 A5 e0 ]- Y3 \0 d. glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 [" [( z' U% }+ o/ M8 k( Z# }/ O
; W: @( f. f4 S1 k+ B
" V4 U$ x2 v1 S' `. D9 S' C: aget-global-proportion$ a3 A6 z/ A. @% E( @
let trust-value+ g6 A% ~. u: g p$ n. t
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)# {4 {9 ?5 l' \, Y8 _7 B
if(trust-value > trade-trust-value)0 I5 m- r$ R \6 G5 j! J2 j" O
[set trust-ok true]7 D: |2 E P" K+ {, Z
end
1 ^$ l$ E% [- }! _: h# E
1 p. L3 ^/ }) D# Lto get-global-proportion. y P- F! m" B1 `8 d; I
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) @' C. C: t: f" f
[set global-proportion 0]4 z; c! T0 c& D; ~
[let i 07 N& X) w# q+ M7 t
let sum-money 06 I0 H: B% }7 j9 o$ s
while[ i < people]
6 {6 y4 p. Y" Q! @1 K' `, K$ d[( e/ E: _5 X) h+ k W$ v( ]
if( length (item i: Q0 P3 |0 g/ L* H" U. m2 J
[trade-record-all] of customer) > 3 )
; J( N$ m8 P; N! s[; q1 C: L1 H( N- R6 L, U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! w: B; J k- |: y% y1 q7 C7 V
]
) _( B7 |/ a- X5 M1 g) g] K# ]4 ^( e4 a0 J v5 T
let j 0/ b' n+ X$ r! ?
let note 0
8 L7 j/ U) q% qwhile[ j < people]
5 a- \+ @7 l7 V; |* ~[
" j! n7 ~( _+ I; }! M7 Nif( length (item i. M: S) ^- Q5 e
[trade-record-all] of customer) > 3 )
6 I8 W: |; _0 [8 m8 W[. ~) j' |: u7 n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% t. g9 G4 X) m& ^[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* k( e e- [* W* O
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! |8 N# W8 k4 `]
7 ]3 X% q% ~: T; `6 ^& ?]
1 ^* _+ _5 l# O0 J7 e8 ]set global-proportion note
c7 _8 ]. L( h; ]- _( K9 G]# y+ i/ [) S; k- v8 ]
end- [1 m2 U3 \7 k X% ^( @
6 D% L. y+ c S
to do-trade- A/ G. H1 |& L4 K! U: Y+ R
;;这个过程实际上是给双方作出评价的过程
a' j& V/ P1 [( u4 ]0 d, rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 j1 X2 ^: e! s' Q' Z- Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 _1 i" c4 d% z* ^ z0 x) a; {) {set trade-record-current lput(timer) trade-record-current# ]- O: Z/ s9 F W4 O* J
;;评价时间
8 n% L6 n+ h) H# T. Uask myself [( X2 Q* u! k/ [. F
update-local-reputation$ v, H- p" {- v! c$ h7 Q# Z$ I& t7 Y
set trade-record-current lput([local-reputation] of myself) trade-record-current) ]7 X1 w6 y! n. O/ v9 C8 b
]7 f0 Y# E, r" _% J7 W/ t
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 b2 d7 ? V: j* y( i* @$ l
;;将此次交易的记录加入到trade-record-one中
' j( V# Y$ m7 ^7 Aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" O/ N9 {: [2 ^0 o2 y! H. V. \let note (item 2 trade-record-current )+ c( c% `# _; a% S v O
set trade-record-current
~' F. e; `" Q: r' O(replace-item 2 trade-record-current (item 3 trade-record-current))7 K/ C# i4 N1 R; s' l6 S8 H7 w: N0 I
set trade-record-current" c: i( _$ [1 F: o. t
(replace-item 3 trade-record-current note)" q: v2 W }. E) _. [4 l; Q
$ Z" h0 R+ y" {4 m. ~' v- L
" M% _" ? Y& @! }
ask customer [
* P% r" {! n( `$ c3 S% Lupdate-local-reputation& n' o. z8 _* }5 ?# Z9 C, E
set trade-record-current* z! Y# {5 Q+ i0 X& ^& [
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 _! [) m7 U7 c1 }# v
]0 A B; @% W3 E# c) E, O# j7 G
$ O5 r5 l* @! T) h
( z% d; ~' i% W% R% ^1 Nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 L# a. s# P3 s& w5 b3 t0 l- Y b' ]8 L6 v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 O* Z2 I$ l" N* W# G7 E2 W
;;将此次交易的记录加入到customer的trade-record-all中
t+ H4 h& F+ y$ A) ^1 yend; ~ ]/ B! e& }, l4 E6 m! I* c
5 M- V& s/ [9 A8 f+ Xto update-local-reputation
& t# q8 Y0 q; |2 g+ S ]0 ]set [trade-record-one-len] of myself length [trade-record-one] of myself
; {7 A1 I5 c4 W4 @
1 s2 ]) f5 q) s% i: m" e
; _8 T4 I8 u; N- Q, y, q2 a;;if [trade-record-one-len] of myself > 3
8 U1 P2 p, A. O# z) y& @% vupdate-neighbor-total
8 y/ d3 ~4 W+ H' y% d: _( W;;更新邻居节点的数目,在此进行* p7 ^# n; E+ b* U3 w J
let i 30 P' I$ k8 ]9 ]) W2 d
let sum-time 0
% d7 p% q$ m' G5 a3 b- F3 Iwhile[i < [trade-record-one-len] of myself]3 q/ v4 J3 {$ z+ [
[- P( B! c3 N0 `( V" ^5 C6 O
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! [% Q! J3 z U v
set i
0 Y, V, v5 P ?5 V9 s( B, f( i + 1)
& D$ Y6 b s! @: M1 N6 r9 X4 \* h% ?. K]
( d, v+ z4 l `8 rlet j 39 Q$ S. F7 U7 F( ]
let sum-money 0
3 W+ W$ [- N- u, E9 W$ Q$ Bwhile[j < [trade-record-one-len] of myself]
; E) E7 Y; Y% _" }1 N( J4 B[
& V: T1 D+ R9 l" G- zset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
. G, Z; B$ L( k7 I; E$ k3 Kset j
! s4 N7 Q4 Q/ ^* a. d' z& v( j + 1)
7 H! X6 [" L: [5 F" Y8 E; Z4 Y]" K4 j7 |& B" ^2 `
let k 3
6 ^6 o& J# \5 y. u/ M; ~let power 05 R$ j" s5 p0 k' F- C' K
let local 0
C* _* D$ g9 {* E7 n; Bwhile [k <[trade-record-one-len] of myself]( ]6 n! e$ a: A* z4 Y0 Z" @/ m
[% _! b7 G' w+ V( D8 h! u
set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money)
* U( d8 W, K2 H/ yset k (k + 1)
0 p! y/ F- M! x$ E( u" Y' r; u# H]; N9 y" Q: ]- V! R! N
set [local-reputation] of myself (local)$ F) c/ o* A! G( c# k) _/ {
end
: l. L+ T1 M, ^" O
0 t! w" \2 K9 x0 w0 k) N% Lto update-neighbor-total1 H0 D$ V( S0 C M8 n
# d2 S% Z* w# X4 J6 [% G
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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( Z0 M# W) } lend
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to update-credibility-ijl
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: T7 o" I, V5 a! ?3 ~$ X;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。( `6 w2 x1 I8 ] U+ r3 o
let l 02 o. T* z) l3 v5 F- E
while[ l < people ]
/ P3 [: w/ b2 n" c0 [3 w;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
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0 t/ D( V+ R2 f' e" n7 A9 Vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 d/ U# U2 v, G. jif (trade-record-one-j-l-len > 3)
0 Q# I0 X' ?' U' N5 c$ e# V4 e[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one2 D1 x* U T: x- m' z. I
let i 3: M* l2 q& g5 x9 M
let sum-time 0
' K# N8 W) K# Z9 y f, P( \' R, j. M9 twhile[i < trade-record-one-len]
: a- x) v L0 y[* {7 m0 x% g7 b* }# ?" i
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# z# F z |" Q6 eset i
( _( C/ }7 L) L1 e, L( i + 1)
]; t b/ p7 R& b/ o' a7 _2 k]
* ]8 Z K: y9 ]! W/ D8 }( Ylet credibility-i-j-l 0$ K6 T6 N. [& w% C
;;i评价(j对jl的评价)
k: l4 A7 x1 e- l$ w3 mlet j 3& @: \' @% E c0 {, V
let k 4" w) S! z* I2 j* n2 y+ Y
while[j < trade-record-one-len]" O1 V; W$ u: z S# q3 s# w! Q
[
- A8 k, R1 v3 h$ Z, ~/ \1 Dwhile [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉% q% Q" ~! K5 ]7 t, Z, U- I
set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)
. d6 L W+ f9 [set j
3 K3 ^+ \, W) z" D; [( j + 1)( d6 b- y t$ n/ u: W) z
]
, \. q3 u& b7 `: `9 w7 Tset [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))6 b p$ p( Z n- x
5 S4 o: b4 m7 T) y; ]. P
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ H( M4 o% I2 \/ L;;及时更新i对l的评价质量的评价7 Y9 [0 ]% D4 }2 c0 ~) d/ T
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 |8 [2 h4 `( U2 S) e8 R2 N
set l (l + 1)
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end9 Y/ W& v* w$ h) B9 u
0 e* k) Y/ Q# j8 l; i" H) h! Yto update-credibility-list& f. s* q& f1 G0 [1 @
let i 0 e9 `, ]- t# {1 g) G9 d
while[i < people]% a& g8 x; t+ ^! w& p1 c
[' }) U$ { n% ?4 b# m/ x. u- c1 [
let j 0/ e9 _* T0 K- ]* j5 U$ S9 P/ C! f! D
let note 08 o' l& _2 h! r% c+ K7 x0 F. O
let k 0' b7 P- C* K4 E6 C
;;计作出过评价的邻居节点的数目- f; r6 O6 I) b5 W9 U( ?/ c: T
while[j < people]# m/ M/ @( \1 A* ?1 T/ H
[, s" g+ p6 c" X% W
if (item j( [credibility] of turtle (i + 1)) != -1)8 @- k( r# n! I0 ]! }- I' i
;;判断是否给本turtle的评价质量做出过评价的节点
: I! x' t7 a8 j3 ][set note (note + item j ([credibility]of turtle (i + 1)))$ S# M- i# y' x7 x$ b; m
;;*(exp (-(people - 2)))/(people - 2))]3 @2 c E9 y# V8 Q" M
set k (k + 1)& J& {$ [+ W' d& K5 }/ `; | p
]
) L- W* T" f6 c% X& Y' Wset j (j + 1). `+ W" p& ]' G5 u
]' d6 M7 s2 T: M9 X1 w8 Y
set note (note *(exp (- (1 / k)))/ k)
* s* w5 J) e+ l* w8 C. W" Eset credibility-list (replace-item i credibility-list note)
- h/ l( E9 u: f- O+ Q2 hset i (i + 1). U ]; n2 U9 {
], W9 C8 I, X$ L8 e9 a# b+ c8 J
end1 P6 d, b5 Z; t, d3 M v
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to update-global-reputation-list1 f6 I9 ~/ p3 D
let j 02 e7 Y7 v+ |1 [9 Y7 ~: W
while[j < people]1 e: B& c" n3 b1 H
[/ Y) O# c- @( a, \& a; m
let new 0
2 [6 `( w7 ?; X8 Q9 B9 x, X$ D0 N;;暂存新的一个全局声誉% r! h8 w8 T9 G) H1 U& B- T1 [
let i 0
1 F& F; Y; H! @, c9 o5 Vlet sum-money 0; o3 Y# x* J: R( g" d+ U% r
let credibility-money 0
; K6 h6 M8 M0 h( qwhile [i < people]
4 o. r* b! C' X k! U8 v. Z[
# q" J6 \& t- z: kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))% e9 M& g0 y' R" g5 Z- b. L8 p: _
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! `1 j4 |! L: F7 q" |8 xset i (i + 1)
8 W. U+ _) D8 ] s1 ?% L% B]# \9 q# B i& T2 W: V
let k 0
4 m3 h+ b5 p) ~let new1 0
8 F- f1 ?- m" |" Z& z0 ?1 E* iwhile [k < people]
" S- W h1 B+ x& f/ {[
4 G. o( |6 o; G7 W4 a/ a, ^ fset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)6 o% b9 |5 ^: d5 E+ Q
set k (k + 1)5 q7 N$ R; Q) u: }) T
]- C3 N4 j) @0 g, z1 j- w
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# k3 g9 K. x; f! {8 f% _5 uset global-reputation-list (replace-item j global-reputation-list new); ?" a' |4 v f7 @
set j (j + 1)
% f/ K: y) j0 V* X. V. Z4 D]; g4 r( y6 i- M4 |. h, V2 s
end0 H6 W/ Y3 m Y2 C& Q3 I' l1 `, V5 U
$ k* P0 ~) ~( \3 T" b* [
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E9 @& m. i* Sto get-color# X) m, p5 d2 B( a
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set color blue
# y, J- v. n( j! a6 C" Gend
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5 o5 B$ a8 J1 h, i- i% _) f- }to poll-class
O! i2 d2 _0 M* M2 Uend
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; h+ w; u4 B0 |3 O2 Gto setup-plot1$ H; r' s# @& N5 c2 p K
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set-current-plot "Trends-of-Local-reputation"! {; P" z( o \4 V Y% `3 `0 s4 a8 ]
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set-plot-x-range 0 xmax; C6 N* x8 j/ ~& ]. W
0 S1 c9 E9 o" H' \ z4 N$ S; Y
set-plot-y-range 0.0 ymax
' o! Q0 e# a, r9 s7 f- |, E( M9 R- Tend
% a% R# D7 Y8 U; V, `& _5 P% W8 q! G+ j
to setup-plot2+ X# |: E- Z0 z4 C( ^5 A* U
: S7 D0 t j3 {
set-current-plot "Trends-of-global-reputation"
( _# E( R( r7 W. V H; b- E3 U2 J* }" F7 Z, \
set-plot-x-range 0 xmax
; g0 j& a" Y# X8 d
7 i$ x7 d3 x4 H+ J! Uset-plot-y-range 0.0 ymax G' P4 U3 x9 }; u
end
7 C* j) ~5 D" l0 J' C1 J5 L) Y
9 A8 T& ?- M H5 Z; R9 lto setup-plot3
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' ]) Z7 x+ E! B3 b5 F$ V+ C( r" O, hset-current-plot "Trends-of-credibility"
) l/ s( Z! z* n$ ^, `1 H8 c4 u. O, f e" W# A- z
set-plot-x-range 0 xmax9 l$ k K. n" X+ K: d2 A
0 l% |7 F0 P: O, B% sset-plot-y-range 0.0 ymax
& k# b5 c2 j5 _3 a/ wend
6 \* F5 [- c3 q
3 n e& j2 d `4 r3 rto do-plots% b- _( ~/ |! r, K0 _
set-current-plot "Trends-of-Local-reputation"
: ^; u: n) Q; u. C0 v4 Y6 u4 Jset-current-plot-pen "Honest service"
+ c$ O6 `8 ~* ]1 _1 U9 Yend9 L6 J( R8 P( r V
9 {0 p/ j4 Y: k0 r r- G+ Y. G[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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