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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
/ s) i! w* E7 B- Z7 Y [& Hglobals[2 W: I: o0 N0 j: @
xmax
1 f- `! t9 ?4 t9 m4 V# Kymax$ ^, L- L, t+ V& o5 j
global-reputation-list. O6 y$ t0 @1 f' u6 b
g/ x: C# q+ O4 \, D
;;每一个turtle的全局声誉都存在此LIST中
0 Z. x7 C4 v# F+ m, Gcredibility-list; ~4 s$ N; Q9 L, R& {0 ?) D9 n9 h
;;每一个turtle的评价可信度
$ a! P2 K3 ?6 P8 g" h- g# xhonest-service# a/ A2 b2 z' p% J& Z
unhonest-service) {' z) M J( z/ v* O, s
oscillation6 g' V% y* @5 k# ^' z! V6 E" `1 @% u
rand-dynamic" P5 f+ U* n+ { Z+ d3 N
]2 V% `! s# j7 l) l1 K$ d
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turtles-own[% j( X/ a( ^/ H1 k4 [
trade-record-all0 ?% ?2 v# N4 s3 U* x9 L
;;a list of lists,由trade-record-one组成
8 f& a; L0 R# g; itrade-record-one
4 K/ O4 m j4 ?) L;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 w$ \. t% e( W! r g
1 d/ L4 ^! B9 a+ S" L' y;;[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]]
9 `; t( ^6 a! X: r$ y) o2 ctrade-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]" r B& A. c# U. E/ B; r6 z1 b
credibility-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: k* c. Z: B. s2 f
neighbor-total; ^/ v [+ l& Z Z: T- k( a6 o
;;记录该turtle的邻居节点的数目+ i) K3 \1 f- r" C+ _
trade-time4 R7 x% h7 u5 _6 J% {# y1 s
;;当前发生交易的turtle的交易时间# R, G2 Q3 h: i+ j
appraise-give3 O- J! j( t/ s* Y7 F
;;当前发生交易时给出的评价: j8 N. O9 ^3 o% i
appraise-receive) M; P" K3 l4 S2 D8 M/ u
;;当前发生交易时收到的评价
/ m* e/ N0 k# h0 F _" ?appraise-time6 _* P+ C* i- H; w- l2 u- _
;;当前发生交易时的评价时间5 R) k& X) ~/ s. H0 }7 H/ {
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! k2 c/ R# w8 U+ y( }* [
trade-times-total
! r$ ^ ?" ^! E2 o$ s/ D;;与当前turtle的交易总次数! m4 a: U4 v2 o7 ?% f; n4 |
trade-money-total9 l4 z O4 @! C I7 r. ^( V
;;与当前turtle的交易总金额6 T( ]' k/ d/ v. ~: {
local-reputation% U" R$ i4 _( y, ]5 V# p" e" u4 m6 E
global-reputation5 }# q0 I4 V. h4 \
credibility8 \8 g$ g2 V1 T) V% s/ Y8 X$ s# a
;;评价可信度,每次交易后都需要更新- J" q# k. i) x! R5 A2 ]; l
credibility-all
1 s$ M R2 Q- _: _* m) `;;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
5 ]5 e1 |% l: c* U' {6 q* s
5 x& U9 o5 R' s5 }0 K. K& j9 e;;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0.5. {) T6 j: O* N/ A8 ~6 \
credibility-one
3 ~- y; S+ I% V$ E& d) {;;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
% f: ~$ T) m4 p! d! i+ N5 qglobal-proportion
& D4 k) b/ f, B& Mcustomer" K: f# g: H! A
customer-no) ~0 d9 b0 E# _& o/ c+ v
trust-ok
1 E) H* l, R+ o' R( {% s0 ^trade-record-one-len;;trade-record-one的长度) K1 u8 V$ F4 Q5 m! U
]( B" R; |" \0 s! i: E
4 r3 w9 s1 w; Z" F
;;setup procedure
& v- i, z' W7 {5 z9 L2 c% C& E! p) r; C" N7 o. J. p- {
to setup8 _2 h) _3 V* A
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initialize-settings
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. Z, U: @1 Z& w9 o5 S/ i# K" Pcrt people [setup-turtles]4 t0 ^" ^, L t9 Z; G
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reset-timer& m' y+ u0 S7 [% J; X) ]
0 n/ a; u7 \# p2 h# n+ M4 `2 J
poll-class& f0 s! K9 [1 ?
) M+ ^- |2 h4 `' z( w* {
setup-plots
# E* y4 U( @/ k, m
0 x) z& `6 w; I1 J! N- Ddo-plots7 t7 ^2 t: u, v: ~0 d
end5 f' k; U. F# k
' J* l! o1 |8 r/ Mto initialize-settings2 Y3 {& u. u5 _# d* ~2 i
, V# ]% E; t3 t8 W C6 j
set global-reputation-list []7 t1 W9 S4 d7 g& B3 h) z, I
; [! A+ ], y' z! \% l2 yset credibility-list n-values people [0.5]
# Q( P0 v T8 B) u/ f$ k! W$ M0 D! B3 i; C* ]- D
set honest-service 03 J& W; D: y* @, H
# i8 f* u! O9 `; {# }1 ?
set unhonest-service 0
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set oscillation 0. c% ]. |, S+ [ ^3 r3 P" G% j, G% g
^( q" C) ?* v: ?: C8 \
set rand-dynamic 0' d- E! D9 k2 [8 M
end( ~$ [+ L" O6 d/ F- D" Y% F" {
7 e1 o8 A- D+ K6 xto setup-turtles
* T; ~; N) M0 `1 g# @ w4 L0 t+ [set shape "person"
$ d# p9 I% s) X. n# A# F6 _" dsetxy random-xcor random-ycor% i% j3 t1 ` u; P: A" F c( o6 N
set trade-record-one []# L# ?& y6 C% e2 i
3 ]9 i/ b ?7 [1 p
set trade-record-all n-values people [(list (? + 1) 0 0)]
# c; X# a: R' |! Q, [ T, _( o; U# u* j9 Z
set trade-record-current []
; r2 t- C9 u: q" M$ Q0 a$ N. s. Sset credibility-receive [], @- J: Q o3 Y8 L( y L, l8 U2 O- c
set local-reputation 0.5
1 }7 K8 S$ Q$ W' Eset neighbor-total 0
! i. d0 g5 h' j& F* y! H5 gset trade-times-total 09 K9 n2 s3 e. a3 N2 E+ b1 ^) c5 C! B9 |
set trade-money-total 0
8 t) n3 P8 J! N* e% T9 @set customer nobody
8 k% k" ^9 R* d- z+ C% _+ pset credibility-all n-values people [creat-credibility]
1 m) d# \3 L! {set credibility n-values people [-1]
. B2 ^3 ^5 S& a6 N* Y9 lget-color
8 ]* B- r% O0 g
! `# R4 i* h6 g. A) pend2 k8 G% S" R, H1 c
/ W/ p b' R7 ?9 O' @to-report creat-credibility7 V, o* n# v R8 u+ h
report n-values people [0.5]
5 n$ |( x2 z# `" G' uend
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to setup-plots
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set xmax 30
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set ymax 1.0
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clear-all-plots$ M; l- @# _2 [( J
5 j8 ?/ _5 v1 I- Asetup-plot18 A) }# S3 E# c& s
4 M# _" W* X! r3 j" G9 U8 Dsetup-plot2
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setup-plot3
. `1 g' k- u' p6 H( z% L: Oend0 G& _ l/ n- |
7 a4 P6 _6 J; X; u4 s/ j
;;run time procedures i' d6 E1 {4 \9 s% A
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to go. T/ \5 r$ A5 l- b0 ?# o1 J
& F6 d$ p' m( d% X* E6 Y5 |& ?
ask turtles [do-business]
/ ?! w: T1 u8 [7 }end/ z, L8 G1 f$ L( ~: o1 n
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to do-business
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0 r% m7 b3 R% ]8 a2 Mrt random 360
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2 \! i5 Y% ^( dfd 1" r1 V* l. ]5 r& B8 v
, Q: g! R3 ~; t8 \0 T' Z6 L- @ifelse(other turtles-here != nobody)[
" b- U; w" z; h+ x( Z0 p) i! Q
* M+ V) b. q# Uset customer one-of other turtles-here7 i0 q" A0 l) Z% o8 m
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;; set [customer] of customer myself
# D2 Z' r5 p: Z
k/ k$ E: H% |1 ?1 bset [trade-record-one] of self item (([who] of customer) - 1)
* |& p/ R4 X# X$ L[trade-record-all]of self' N0 y: q! Q) P1 y( e) p6 u! K+ P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- @9 S# ^2 ^" v( J; B
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set [trade-record-one] of customer item (([who] of self) - 1)1 a0 A J7 q/ F' V; } c% e
[trade-record-all]of customer: D- ^. H! n, a
' h% L; v5 j# r
set [trade-record-one-len] of self length [trade-record-one] of self! \1 S u+ \ c" i
( f& J" Z4 Z1 P0 Q# ~$ Y: Wset trade-record-current( list (timer) (random money-upper-limit))
: `8 v3 r8 Z( k2 M7 T7 E+ S
: @2 m1 V6 U3 c& Kask self [do-trust]
8 B0 }3 F8 {0 g% T, S. G1 ~9 I;;先求i对j的信任度
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if ([trust-ok] of self)7 a9 O+ x1 d5 D, z8 r
;;根据i对j的信任度来决定是否与j进行交易[
3 U/ y+ J4 {9 uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself V8 w# v: b# d* P3 M
- T3 }1 F) i$ b( J9 v/ s
[
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do-trade# @7 b! z" q+ F" \, ]
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update-credibility-ijl: a" W% ~) r. }0 f2 F: F- O" _+ s
" }) b# E& j, T8 b+ W5 X& E' bupdate-credibility-list
6 G) i: T! w3 b3 J* w" s4 ~/ A7 L
/ s$ }( o- f+ s" y( l; |: ~' N* _% E3 V7 U$ B
update-global-reputation-list
- |7 s1 r. G% l2 p( B/ ^$ d! x; C7 ~3 x9 q+ E
poll-class1 _1 A7 y4 v# e
0 E5 b. A. q; E2 B- G5 wget-color
4 q# d" i ] ?% y1 `- V$ N3 t% q+ \
]]
! F& b o ?2 I8 x5 T0 d" V5 V a8 y8 m) H5 t
;;如果所得的信任度满足条件,则进行交易
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$ O/ L8 p* a# u; E
rt random 3600 u) g. g8 \& V& L
1 e' K( K3 i% D/ ^( m& M, L9 ^% T- ~fd 14 H2 }+ n, W5 F. m2 \
' `3 d6 Y" r+ S/ l]
, M& C% m; [" N; u8 o$ ^- }4 {
' [ m3 o4 ?. L" l7 s' d& ^end
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to do-trust ! B4 u; Z( c, U: m" r6 f W
set trust-ok False
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let max-trade-times 0
3 g1 S2 `: H {! u Iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 E1 ]3 V6 d% a- Q, N1 `: E
let max-trade-money 0
9 n2 K/ g/ Y' b$ {0 Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 V X2 X/ i2 V) Ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 F6 w- m3 ]* K/ ?& i+ ^% ?
6 F& X) J& y( E& w/ E7 C9 T/ `- e
get-global-proportion
k# i D6 ~1 K# f5 u8 _let trust-value
5 e. [: B' o! s9 A+ zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
+ F! n/ r; i3 g' {! ]if(trust-value > trade-trust-value)8 y4 a; o- D& A# e9 p" h
[set trust-ok true]+ Q' k t" L3 `6 O0 j* @
end2 p0 t) X& D% c9 P# K
5 N# q: T2 d: [2 x7 j3 n4 q/ a [2 J
to get-global-proportion/ h7 y0 L9 u, a" Y$ T: z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- K( r7 \. d8 \2 r4 S1 Z3 ^ |: n[set global-proportion 0]
! R4 z/ V2 @0 p6 |: w5 l! p[let i 0: N9 r4 x. S% I4 R3 g* X6 ?% Y
let sum-money 0' N! n8 H+ g n% o
while[ i < people]/ n+ Z) U: K6 {' G
[
# \* @9 k6 H% yif( length (item i
1 _! L( t% T, s- {3 _# A5 v[trade-record-all] of customer) > 3 )
- W+ f& M+ r/ b8 S+ X[
) U% n, ]/ C& ` Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
9 K/ I; ^$ g" ]3 w; X) e( s- m]
5 t) A7 {6 C2 H$ G% V/ H! s/ B/ n]
: b; T2 B/ L8 w6 R; K( @% h3 hlet j 0
; n2 p1 E, @; K6 d0 x+ |7 O2 s; plet note 0
; D% P8 _ B* n& S# X0 M2 @! ]while[ j < people]2 l% z. }1 R* u' f
[; W c0 b: N) W9 n; [
if( length (item i
- t( P8 X8 M# h1 K6 S+ z% l% C[trade-record-all] of customer) > 3 ) Y0 Y7 N4 c: J+ n6 U w0 ]
[
6 n6 r: K4 A& r }% c2 w. y4 \3 c1 t7 ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 _" s1 \4 n* \7 W- C# A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] ~ ?/ E5 r9 m. |( A; y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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]+ B2 ^4 T" f& x( h3 h3 t8 Y7 f; I
set global-proportion note
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end7 _ [- L1 s q$ y5 s4 c
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to do-trade
0 Z: [1 I1 r# S, b& H, h# O;;这个过程实际上是给双方作出评价的过程0 Z! J$ j2 m6 v0 }; b$ Q x7 O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' X: m9 r$ Y& |* ~' X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" x% |( r) H) `) d8 `3 @set trade-record-current lput(timer) trade-record-current. s8 h! _$ o9 p: P1 s) e$ F$ V
;;评价时间* y+ ?$ @6 e1 _' z, Q: L
ask myself [
5 t5 C% d3 T1 A4 B q3 q4 uupdate-local-reputation+ i- y- R; M1 x8 D. [
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ j& j b0 S9 g5 t]
- r) q0 a& |3 b7 N1 U) zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; o* T$ P- N1 h: y) b3 o4 n;;将此次交易的记录加入到trade-record-one中. B, V/ k0 \1 J8 h/ @/ Z4 \# m5 }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ ~+ _5 w3 L f+ Z
let note (item 2 trade-record-current )
- \" Y9 |" W8 I n& Qset trade-record-current
; ~& C3 I3 E- ~5 z% Z3 n(replace-item 2 trade-record-current (item 3 trade-record-current))
) ~, \4 g8 e, A/ }" X0 qset trade-record-current
& M- q- u' w( V; X/ ]% [(replace-item 3 trade-record-current note)% t7 U; d* w" {; @
8 Q. o1 i" G+ [" n
8 d3 X/ x3 _) f; Lask customer [& W: ?2 v5 n* c' }! Y7 C
update-local-reputation5 p2 N; w) l7 b7 {7 k& k+ {/ u
set trade-record-current& x$ T; B( L" `& ^4 L+ \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 @5 P' {5 W2 Q" }% M]
7 [; q. m3 l' N ?, E( R" n. {, ]+ j) t7 p! u6 ^
' x( I( o+ h: s3 P+ z2 y. s' Wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! t' |. t2 l! m, X
9 B# M6 h/ g$ O+ C
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 S) k9 M4 M+ d" q: n# c. q, {& ^2 p
;;将此次交易的记录加入到customer的trade-record-all中
+ Y$ ]! T5 l+ L" Mend
7 b6 D" J( c* j
1 o: a' P6 \# Fto update-local-reputation, H6 Y4 p4 I. I3 o3 B$ Y5 w8 f( _
set [trade-record-one-len] of myself length [trade-record-one] of myself# k% C: q6 n% X: b! _# F
6 _/ G0 x! }4 ^( H2 v: {4 G
+ ~0 d! f9 a2 `( f: ]: H7 Z( [;;if [trade-record-one-len] of myself > 3 ( Q4 V8 o6 P% Y& s4 n5 I
update-neighbor-total
+ r- L! ^, }% J# v;;更新邻居节点的数目,在此进行; D" M2 Y* E- B9 z; F. g
let i 3
' [; h0 t" S/ o1 {: Xlet sum-time 0
$ ^: l6 S1 z* q4 i" M7 Nwhile[i < [trade-record-one-len] of myself]+ s& s0 k1 ^9 `# o" D' {
[
2 P- i5 Q& D! b ?) ^( `/ o, jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( P1 S' X: X! p: v3 x. a
set i, T3 L$ U/ ]! M: s. Q1 B
( i + 1)7 e" j! k; k" q+ _' V% |6 b4 ?; W/ Q
]* W! Q- a* U! ^) ]6 ? }- u7 i. F6 _8 a
let j 3" r4 P; i. v) T0 p4 x" T+ \. R
let sum-money 06 u, B/ [# E Z! C' E" {
while[j < [trade-record-one-len] of myself]
5 f! t2 i, k- G# S[
& S4 m) U$ l9 q: |set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
* J- h) W" ?# H& R- \set j
# Q2 s/ m8 p! D8 s7 k- ?( j + 1)
4 {' m8 V7 `/ `4 z- |+ x]2 i6 f8 i: g, g% z7 K
let k 3
6 p' V, k& e/ ~, p. Q, clet power 0
; f; U8 z9 |: g# k# b' blet local 0
2 t; n6 u- ~- K3 J( X# @0 bwhile [k <[trade-record-one-len] of myself]
, p; S1 S6 C3 T$ @2 O: x9 X[
8 o# j$ x7 q z' }$ e' Fset 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)
' s' d3 I) F8 H' p. {set k (k + 1) m* t$ v- D' ?! Y! C
]9 v: h& q$ {- ^! ]/ p
set [local-reputation] of myself (local)
8 T. M W" B/ b7 j q7 Aend
1 V# h% d, F. N
4 z4 W- m6 W Q# bto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* K r8 _8 y6 j5 D
5 h* s# o' Q, ?$ W
5 t5 d6 B( W3 ]- |; F8 r- K
end
9 D: n$ O& `9 n, |8 H7 z0 f0 p1 E- k
to update-credibility-ijl : b6 z& s6 M5 I+ ]- r
D4 Z) K2 r& v6 I. Z;;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。
8 G7 ^( k1 u! E: e# Rlet l 0# n# M4 J/ V$ Y: W+ {* y
while[ l < people ]
1 D; |* D$ w+ z' f% a) k;;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1 U6 h% F M5 K5 H
[
2 |2 k3 J2 `& f, ^* T& B& jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)' c+ ^( D. q% L" T- R
if (trade-record-one-j-l-len > 3)
) \, \4 v. ? k+ @; ][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-one
7 B5 |9 a8 x) Flet i 3" \3 q* K2 A G
let sum-time 0
/ X: |6 Q+ j9 j* Z/ h/ h8 P8 qwhile[i < trade-record-one-len]
6 \1 D% {% f2 F- x# u" i' g! K[! K: v1 y) D6 X/ Z/ L; ?
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ {% ~) ^% S* A/ c) Vset i' G: I5 J8 v2 P/ x5 e# z: y5 A
( i + 1)
) m0 y( `5 z# A9 C. l9 Q* ~0 E- f7 i]
0 ?5 J9 z! g+ c9 G- l# jlet credibility-i-j-l 0& N9 \. m7 H: l1 f, s( Q, j( L3 Y
;;i评价(j对jl的评价)3 K) U( s) I" L; P! D/ u9 k
let j 3
5 d' u8 F* W6 B3 {( Vlet k 49 j( l1 f* r9 \6 j" j' S
while[j < trade-record-one-len]
" k! n4 l* A9 L' d E. T. A, Y" R[, u' R! Y+ Z3 P4 N h. ^* f1 U
while [((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( F5 S$ f8 U8 ~
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)- M0 H, i% y# C1 r9 E, T3 Q
set j
3 o$ G9 M: y* f+ X: I( j + 1)1 t5 w3 O' t% l$ _+ F
]1 r+ r" \% A% C$ k6 C% d
set [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 ))
, C. [" ~8 a! f' K# o1 d# C
6 ^0 e2 p ]6 g) _3 C1 V0 L) s; j8 D7 j* U
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 F+ U$ C- {' Y5 o: m;;及时更新i对l的评价质量的评价( p: C! K+ q& b/ A( B+ }
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 T4 V" Y4 c o1 y1 p, v) xset l (l + 1)
" y5 G( x! w/ {+ H) w6 ?; }]$ R U" ?* K% c
end
# k2 J V( q$ b# Y: r: E- P
2 ?/ V4 N) z- d! [; Q, H/ rto update-credibility-list
: b1 W2 w- `8 p6 {let i 02 U0 b) K' F& ?* x& J, ^6 `
while[i < people]" K, H' K# Q3 Y
[0 V# u2 c* V+ M( @
let j 0
2 \, K, Z5 n0 T1 Rlet note 0- z: s; H7 ^5 v# }/ m. t7 s1 z6 Z
let k 0: y/ z4 J" i& t) E; R7 B: _
;;计作出过评价的邻居节点的数目
$ h8 A& A* O8 D3 q, U6 H- Zwhile[j < people]) T1 J" O: G/ w0 z1 h
[
3 U. ?/ A% C! C p' K4 Zif (item j( [credibility] of turtle (i + 1)) != -1)& P5 B; D, p# o( v
;;判断是否给本turtle的评价质量做出过评价的节点
- f' w$ }, w5 x+ {7 L[set note (note + item j ([credibility]of turtle (i + 1)))) |& I6 R: ^ T9 [, r7 {
;;*(exp (-(people - 2)))/(people - 2))] V7 ]4 f {2 f3 {! d
set k (k + 1)- }. I: T$ w& p' v; W
]
4 O# s( O' M; Y0 t, e& _set j (j + 1)
: D! B' s8 `3 T7 S]
& x$ g. I4 F0 J; }6 U+ wset note (note *(exp (- (1 / k)))/ k)
0 t, _0 _. I0 _% `set credibility-list (replace-item i credibility-list note)
6 a% ? c% S7 l {; x: f- c3 dset i (i + 1)
4 }7 T0 M: N; j6 B]2 K( `# X7 u" ~
end) r0 }0 t9 }0 r; z% O# P
( T9 @' ^. n1 Ato update-global-reputation-list1 l+ _4 S* c1 R; N
let j 0
+ S: `+ j j4 rwhile[j < people]
; b' ~& s$ k4 O/ D- N[
6 p/ B% z$ k) Plet new 0) M* w" ^8 P$ w$ M
;;暂存新的一个全局声誉4 H( I( J" d1 q1 k& A0 v
let i 03 V: f% L" ]- {
let sum-money 00 {4 g! o3 e5 O- @" j; g) Y( Q% W+ F/ k
let credibility-money 0: g) F' }! b" m# G0 B
while [i < people]
, r7 u& C$ ]. b& A& S[
- `7 e. p" V( L, Q$ _; Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# g: R( O T+ @' }. p( G+ C
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
1 @7 X. K, ^7 n2 r/ N/ B3 bset i (i + 1)
8 n0 c" E, W# T6 l0 x& A]
5 p! m6 y+ y" k9 n( {let k 0
( D9 t& e, `4 Z' N0 f- n; Olet new1 0
9 t' a' y/ V, u+ z# Xwhile [k < people]2 q$ _$ A+ D4 G+ r, [9 N8 Q
[
2 a# ^* o! b( t, i& z E6 |0 nset 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)& ]0 }1 z3 Z; w0 i* l: l
set k (k + 1)8 L, ^% Y) i+ e& U2 v
]
$ p5 v, N, Z$ n% H: kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ K. l% _3 C2 K/ G) M. Pset global-reputation-list (replace-item j global-reputation-list new)% l$ m: s# j3 V
set j (j + 1)3 G6 W7 N5 s. h% o
]4 t4 W3 z! N5 v, _. {, @
end
6 S5 C9 x5 w& c' g ?* k6 {. g4 b# w! H8 d
0 O" n) k" d# G3 i: V; G, ?! E7 e! L3 Z0 O2 W. j
to get-color/ t+ l r3 f$ d' D
|+ U5 k6 p' M3 |& G/ o3 i
set color blue. R' d* X Y) i# ]2 F, L3 }8 G; V
end
5 I% v8 f! [0 |
$ l) O7 I( m5 ^7 ^to poll-class% k; g5 v$ h# r# d' ^1 E
end
9 Z. @5 _( p/ }8 M0 N
{1 {( O) F, |% z$ Rto setup-plot1+ Q0 [: K$ ^6 M3 z
" B/ i# W6 U/ u. t; w+ }5 ~
set-current-plot "Trends-of-Local-reputation". Y+ F7 ~6 b9 L/ `6 o
+ e" h" z5 }7 u7 ?4 w
set-plot-x-range 0 xmax
0 G) P' n; e( p, \/ I, ]
3 s6 N6 d3 t3 Y6 E( r2 Zset-plot-y-range 0.0 ymax
; u7 l. X3 y+ d/ Z4 `+ r! b; J, }0 Mend% n# X# J7 d) O( l' F3 P0 ~( q
& D6 S! n: {/ w9 P! F% |! f* c
to setup-plot21 z/ S3 D& @- ]7 I4 R4 L" {. X
- A+ b% l' e' r. N7 a2 M% f% Z) A
set-current-plot "Trends-of-global-reputation"
2 y, n; s* l$ C3 ~/ h6 |4 N
/ n. |4 g- y2 Z( m: d5 Mset-plot-x-range 0 xmax" `' }; ~- N9 n; A$ z! O
# b/ B: g6 t4 e8 aset-plot-y-range 0.0 ymax
9 P6 H9 f/ ^) w# ^end" T, u% H0 l' P& r
- p6 B" F+ q: ^" h- Y
to setup-plot3! L( R: f6 Y, Z6 _/ f ~9 q
6 l$ x; H0 q' H% a! A5 y" Kset-current-plot "Trends-of-credibility"
' K, N! f/ r+ q+ p r) a* R* X6 e" g4 e9 h; q, u$ ^
set-plot-x-range 0 xmax) |) H" d3 @% w" W3 W
! K/ D L- h7 K* E! p
set-plot-y-range 0.0 ymax7 v3 Y0 s; E A5 i& i1 T' X' S) M
end
0 r7 S! E, B/ y/ S- n8 ]' V8 n2 F. H9 B9 S- s; S, e
to do-plots
' v' }" i/ F" z# B* zset-current-plot "Trends-of-Local-reputation"2 ]5 k) s: c/ D4 c# E/ P
set-current-plot-pen "Honest service"
: q n7 {( ?% _9 mend1 ^2 H7 _( x- a1 ]1 M9 C/ J$ c
! B$ J* w! l p+ D[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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