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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" q( l( ]; v' ^: H6 p+ r/ [
globals[
* r, m4 v* o6 e! C! H* G/ cxmax( L3 |* y4 O) F5 t+ h* w' V
ymax
& I% i7 |/ z r5 lglobal-reputation-list0 o# ^7 c2 g# u7 [
2 m' U9 |( \/ m/ c;;每一个turtle的全局声誉都存在此LIST中6 Y/ a; h: s5 g# h+ Q
credibility-list+ b0 Z9 d: s7 Q$ t' u4 g' d# O
;;每一个turtle的评价可信度
* i v& ]: a1 ]* Mhonest-service; b. k% L8 ?6 K# p
unhonest-service
5 \# G- P$ s! f8 ]* ?! ?! M. Doscillation! e/ P7 Q# j3 I, m! n
rand-dynamic* i# }+ ]" p: `' s. N H5 w! U# S
]
1 @: d# e( Y c2 Y7 S9 c7 h! l& G% R0 O, G! _5 _0 A& Y- X
turtles-own[
& A6 V2 @% c. atrade-record-all3 b) h# Q2 b: K7 m2 ]3 u6 y$ P0 h
;;a list of lists,由trade-record-one组成
: I) l" B3 d2 V; C; g% Ptrade-record-one% i0 ]# W' a( S, s+ M3 c, `/ e
;;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]]8 W y* Q2 C* U0 |8 z) n
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]& W# g$ `$ s x7 P/ U" H2 W
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, W8 G$ m* R5 }' ~ w/ {6 Z
neighbor-total/ n S1 q$ r5 O4 w" r2 K
;;记录该turtle的邻居节点的数目6 ^4 T3 Y6 I p
trade-time2 v& }. K$ \( V3 V" a) K
;;当前发生交易的turtle的交易时间
# V3 C* ?9 I2 b! _$ B- a- Lappraise-give
; h5 o; O+ I. l) N) };;当前发生交易时给出的评价$ w& e$ N* R5 @, ?2 t/ T8 d* K
appraise-receive
^ w( B9 p, B;;当前发生交易时收到的评价
3 n; L8 o+ M2 k9 d- Xappraise-time
' k4 t0 }! ]7 j;;当前发生交易时的评价时间 u% j! ~+ x! ?- l3 s9 w% w ?
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 D1 j2 P3 f. `
trade-times-total/ F7 I T% R$ M7 \ K
;;与当前turtle的交易总次数
3 z% o' j4 r' g: H3 Strade-money-total
# @8 X* N4 n' ]; Y0 D( G4 p4 \;;与当前turtle的交易总金额( _# ~( T& S7 Z% p. m- {7 h
local-reputation% F4 x) ?, m! P
global-reputation# L. y. J5 i; P4 m9 j
credibility- G1 P( Y' k/ ]/ J9 o
;;评价可信度,每次交易后都需要更新
: J# d1 X8 l; `' a5 i1 mcredibility-all; S( Q& S x* E
;;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% s& _- x; x3 B0 J. J6 i6 |# z
$ c1 u: f* w3 M- N: S
;;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" y* l3 S+ \( G" o: a' }; v1 g9 s
credibility-one
% r! G8 m7 G# Q" w E;;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
9 m3 Z, M- I: Wglobal-proportion
8 R; w( R5 W, k2 ]) ^3 ocustomer
6 i7 a& x7 E+ {- a. q2 r" ~% B1 ^customer-no
, ^7 u3 P8 w# q/ _; O: s2 x2 y8 Vtrust-ok
# Z( c+ _- k" e. Itrade-record-one-len;;trade-record-one的长度
6 [# Y/ ]/ z4 N& l]0 j, R! ?/ D. Q! d; j
# q9 Y7 O2 I: U# c) X
;;setup procedure
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to setup
9 C" }- r( x" f/ z3 C; A
0 T M2 V' {1 g/ x$ q6 \ca
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9 v0 c0 C2 z- Minitialize-settings
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crt people [setup-turtles]
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9 v. E0 |" D. H" }& G: Nreset-timer+ w- z3 v$ l1 ?- o
: V9 Z( B7 P- |* O9 X" \: ~& G
poll-class
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setup-plots: |& Y* {" p" c
; Q6 U- O. r! a! w# ~do-plots
% F4 f( J5 N" f4 I% N& yend) w5 E% s+ f, w/ H7 ?* N
& S1 y& ^+ b! ]3 F8 ~to initialize-settings
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set global-reputation-list []
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+ e0 D% Z+ _, z8 [& z& Pset credibility-list n-values people [0.5]
3 s. k( X/ G+ h8 f7 t* j
+ v9 X* R- l5 q0 x/ w' X+ ?- f& r- Kset honest-service 0
a5 X. q3 g# z* r8 J
, U3 P7 z7 n, f- V3 |5 z/ L* J8 |$ dset unhonest-service 0/ J: u L' [. ]$ ~6 \5 n
$ |; b, r* A7 {set oscillation 0
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set rand-dynamic 0
, y2 E, M: E& J; c6 L; Rend8 @6 S. I8 w# R( O
5 z/ d: X7 m- c4 `6 Oto setup-turtles 3 K( S# [: E# y( n: Z/ C/ X
set shape "person"5 N% e& c7 q" u, p2 z
setxy random-xcor random-ycor9 c6 p' i: t* Z$ i5 o
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] ' R o* j7 J( Q, Q
) K. {1 }6 _. _9 ?. h" h; G, O }0 [: l% h
set trade-record-current []& x7 s: j7 s1 U: l
set credibility-receive []
2 w# I$ M8 O2 x& ~3 Q# }set local-reputation 0.5" y6 m; c9 v" U T: O t* q
set neighbor-total 0% B. E! R1 f7 k. n0 t8 |! g
set trade-times-total 0. i# F3 \" ]! @0 @: ^# J- ]( `3 H
set trade-money-total 0
' O1 S; Z3 ^, M1 C# D# d Sset customer nobody: j2 m8 f6 `; [! `( t
set credibility-all n-values people [creat-credibility]
: W; G1 q' L* ~) O5 G! Q9 Q1 u5 n$ Nset credibility n-values people [-1]: X0 ?8 D9 h! ~
get-color G3 M' E( d9 s9 k0 x
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end
$ \8 f" `; W8 o2 k7 ]9 s$ |5 n) {4 G) P" i' q
to-report creat-credibility, E6 [/ _3 \5 x o! d0 Q/ d
report n-values people [0.5]3 z9 o' v7 a# l* c
end, @9 y* n" W* r, \! A* \& |
: u& u) {1 p% y2 e5 s
to setup-plots
: k- @. x0 e2 L5 t8 s8 W/ v, v
set xmax 306 u1 e5 P6 M/ a- M0 o
" L* n6 s: O: Mset ymax 1.0
% |) N. @$ F2 P" {+ y; w. r8 D: N5 E" b, B; k
clear-all-plots8 D7 x1 R. c% e9 o$ ]' q- _
, o$ s9 J+ E) usetup-plot1/ H# ~% P- I% b4 ], G( P
4 m- t- M( ?) n& K6 n5 Bsetup-plot2
% |4 R" d5 L1 u, f" Z7 Y k( b: L; S9 X* o9 O2 I% Q ?$ k2 n
setup-plot3& N% }* B& e: \# M* G D( U6 q6 M
end
# R8 _9 l# p p( C0 P/ i
$ E* [3 v* l9 M: ];;run time procedures
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/ q) u* h a2 P7 `to go+ _- @2 i- {4 B1 G* G1 G: I7 y- F
8 O, M+ o. o6 I' N1 W
ask turtles [do-business]
/ j, C# \: V) w* X/ S: z/ X9 Iend
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to do-business
7 b( }! {. n/ u+ {7 U3 [+ H& [7 ]* o9 F2 k8 |
7 ?( h4 U7 X! f" {" @
rt random 3607 T0 q& O* y# w Z
' S1 e' Q) `4 f7 Gfd 10 q' P/ B3 ^' a5 J' q$ K5 n/ M1 l
$ {/ u" ^- d2 @' _0 n
ifelse(other turtles-here != nobody)[
$ J h" x D% O
: f% s5 I! o6 W3 i: f! a/ D$ s: Xset customer one-of other turtles-here
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;; set [customer] of customer myself, a4 j* ^ z1 Y8 h
/ H$ E) d1 x/ ~1 X9 Oset [trade-record-one] of self item (([who] of customer) - 1)
& g7 n, v& m5 d1 @( ?$ A, b[trade-record-all]of self
: U9 S* h; I0 x5 G;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 Q( D& F' v J. H7 N* v
" U& N, X4 x+ C' H" i3 M0 Pset [trade-record-one] of customer item (([who] of self) - 1)
6 h4 q+ O1 _& }- t* ` f+ n* E[trade-record-all]of customer
9 i0 X, a5 O0 D j- \# y/ q! \8 Q7 W3 k
set [trade-record-one-len] of self length [trade-record-one] of self5 F- M1 p$ Z; ?4 N! |
6 Z* X. N/ z9 D2 B$ u2 P8 Hset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
9 p6 M5 g5 g8 |* @;;先求i对j的信任度: x* t0 E: p6 Z u, H( g
; h- ]' S' w, o% eif ([trust-ok] of self)2 j% Z3 C/ k+ A' O* h
;;根据i对j的信任度来决定是否与j进行交易[; u$ G* D6 j2 b
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% J1 V& G& \. x+ V# P: A
, s! b& W0 h1 I" _, B& v5 u
[
, _2 j$ U3 \$ {7 k" e
) Q# X* ]9 r0 X. \do-trade
% x5 R* H0 e3 ~- U
4 \; F8 }5 J, j- Zupdate-credibility-ijl/ y, P1 Z9 B7 q) L" h8 [
, m% P9 d; T7 d E% Yupdate-credibility-list/ X+ M$ `, D) i, D: F, k S
7 N$ m% F' L% Z1 `* v7 [# ]0 `' ?4 v8 S( [9 O
update-global-reputation-list
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poll-class
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2 O1 T4 U1 T: T2 l0 B. {get-color& h$ s% Y0 q4 K5 O( @1 Q
3 F) ?. ^8 g( _]]/ Z( N$ k9 s' u+ G- o8 d+ O
; {1 f9 C0 M7 J;;如果所得的信任度满足条件,则进行交易! B( _; c% _3 \: n
4 B! d+ ?- c+ Q- T8 K% E: c[
0 c8 {+ t7 A( I9 k+ z$ D1 ~" l% F( d; _) K0 Z- U
rt random 360
6 U1 e9 Y1 W) W, Q H( Y1 ^# K6 S9 }) B/ M% D$ P$ ~
fd 18 L0 R% H$ k( i5 P$ d0 g4 |0 |& m
. H' Q- b( T; S8 m v]2 R" p/ q2 s g$ W, H8 V% Y# d
2 {$ r0 l, z+ |( o" w1 U" bend
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to do-trust * w/ {/ h2 s- ~# n/ f" R N4 N5 ]
set trust-ok False
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% M2 j# H/ B# [) T" j- ~
let max-trade-times 0+ ?4 k) P) W: A4 G
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" z. Y: C0 [% w+ f0 B( K; Glet max-trade-money 0
z5 }& |2 t) h) [) ]: H- c2 ?foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
i0 G' ^9 U; e; }let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ ?, e- d$ M7 h: I. C! I
1 A3 b0 x+ r$ C8 ?
" q% Y6 e7 W7 [* W, Oget-global-proportion, j$ Y* d5 c. D4 ]
let trust-value4 Q# _) F: @% z. \* O/ V; T9 t& F7 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)
+ s U) W, U+ w% h( ~if(trust-value > trade-trust-value)" O( s+ s/ u1 n2 k! ]8 ~, ~8 W B+ X
[set trust-ok true]& K0 U/ @$ l$ j$ `/ v9 E7 g
end
' y+ B( @, N! _6 a7 I9 w7 ~$ p+ h' ?. M, f. z+ u3 W. K4 r, o
to get-global-proportion+ ?8 p& ^, b% _0 }
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 s2 l( D9 V& U! u
[set global-proportion 0]5 Z4 I% C. Z; b* _: t! l
[let i 0
( l5 U' I0 g7 x4 L" C7 K; ]let sum-money 0& k$ w' R8 E( Y: M0 x
while[ i < people]
9 ` [" W5 G$ m- J[
9 w2 E4 m5 t8 p6 ~3 \% s% K/ v' a* eif( length (item i
% Z' D% {) m5 k/ g7 T2 {* |[trade-record-all] of customer) > 3 )' s9 k- u$ R" f1 q; X. Q# t
[
$ W. U3 J G1 J# `set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
x$ G! Y- j! I; a+ r]+ d! C9 Y: N8 Y/ K- o7 r
]. m% t- {/ C; y5 t/ ? r) K
let j 0
9 W' d. N) s, glet note 0
# b0 I' B& Q" v2 |, ^8 h4 _$ A2 dwhile[ j < people]
$ k2 }, b& {, L, s) a) ][
r5 J3 d5 X$ d0 N8 E+ S }. V) b: sif( length (item i
( T6 o- s8 E/ H% O) y[trade-record-all] of customer) > 3 )
0 L& X# Q9 W3 M& \4 {4 b" Q[& [8 m4 R/ K: Q# i, K
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ K" f/ V( @+ P6 l* N! _[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* G; M6 o6 M: u( _3 U ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) ]' p) R, ^( F]
# f9 `7 j* W" w% O; H/ s] s w% h5 @7 Q) t0 O% ?2 I
set global-proportion note4 G0 {& G# k- [ @ c6 C
]
6 H* s- S4 X" f8 _; Wend
' b+ `+ E1 r1 {; M! S0 Z5 Y& A0 d
to do-trade
6 n! d# W- o% I% m: Q;;这个过程实际上是给双方作出评价的过程
" [8 \2 h1 o# Z) g, s9 G& lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- a$ o3 ]3 G1 m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" Y* v: X9 H7 d: B, Y# @set trade-record-current lput(timer) trade-record-current
0 i" m! A% Q( m: f4 G;;评价时间5 j7 s" e2 l9 W; Y- v, x
ask myself [
/ J$ X) U' l8 z( \$ g0 Kupdate-local-reputation: d: g1 R8 R$ J7 m) ~ }8 x3 D
set trade-record-current lput([local-reputation] of myself) trade-record-current( R4 B& o |: x
]
9 |0 K2 x+ a+ A+ l. I1 Fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. U! A0 k( ^$ P0 O1 Z+ v7 d# I;;将此次交易的记录加入到trade-record-one中8 y$ D1 M) ]/ A6 d+ {
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- p2 I% g2 H! ]; ~5 |0 c' T8 elet note (item 2 trade-record-current )
/ p& H2 S% q; W6 N" g; Sset trade-record-current
3 ?/ B$ a' U) {" t# L& g# o(replace-item 2 trade-record-current (item 3 trade-record-current))* x+ k, B2 o0 ^7 L
set trade-record-current/ u+ @, j' }* b2 y: G. Q
(replace-item 3 trade-record-current note)
& o! l, i9 A& P! r
3 ?6 V Z: R8 F; ]$ f, Z( m* g
* n; _8 n/ ?5 Y9 |ask customer [
4 a" V/ v$ y8 ^5 {0 hupdate-local-reputation
- z' @. T: G! t& m0 B3 r% Dset trade-record-current8 u, Q! n& J% I0 c4 t
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % b S5 h3 {1 l7 G
]
( C7 E/ r; v; c8 Z9 u6 X z
$ b7 V+ F4 U9 T* d( q/ z2 c; N
& d& p# t0 I! D3 Z; [( Q( Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ B* m7 q- k3 G7 j+ S5 C, p) e! u
' C( t; \/ l" S2 m
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% d6 K. W! I6 [6 w6 ` G2 r
;;将此次交易的记录加入到customer的trade-record-all中
- R$ |$ X' a0 G; Q- Q* w& b$ Q3 Kend
; x6 H. f* ~# d9 P) t, U) G* K4 l) K, |
to update-local-reputation) h3 i/ d! {% G) l( A& u: u6 _7 d
set [trade-record-one-len] of myself length [trade-record-one] of myself2 \7 S: T7 p( P; n9 h: K
8 {4 G7 k- t& w$ h
" M% [0 F7 t) O. p7 w% } X W
;;if [trade-record-one-len] of myself > 3
5 w7 T* y( I+ \: ^: ]update-neighbor-total
# Z2 n. x+ T6 ]3 R# I$ A3 B* Q' x- ^;;更新邻居节点的数目,在此进行
/ p* J q7 \# X: q' W9 mlet i 3
9 c9 @9 ^* X4 {+ \1 ylet sum-time 0
: u M2 t: J) U& j: qwhile[i < [trade-record-one-len] of myself]
/ G2 _4 D: u% w7 c[
- p9 s- A& q* U( t3 Oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), |; ]8 m6 {9 ?* b: x8 ? ?# d* u; C
set i2 V e6 d* Y {. @( |! l
( i + 1)
7 I* W7 l, \- L; H# Y]4 b# ~1 R i; t# _9 H) F4 y
let j 37 ^/ A7 K! [1 B$ b/ A/ S* e' T; @9 y i( [
let sum-money 0$ \: Y0 t' Y8 b5 R7 ?
while[j < [trade-record-one-len] of myself]
7 |' K/ R& `4 A4 \, T, M- {' m[
# `: v( w Z: d' M qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
" H' k: K3 N: N. ^! ?. Iset j0 `) ?8 b3 n3 u6 Q2 [3 F, I! ]
( j + 1)* ~' ~' ~- j1 z0 u
]
( ~) |1 X! d9 G4 Blet k 3
4 R* |, d& g5 l6 ?3 _4 v1 alet power 0
0 V1 @0 Z X! R! alet local 00 A# k7 ?; \" h5 S
while [k <[trade-record-one-len] of myself]3 h1 x6 p5 |6 W
[7 s# v2 m4 E1 K0 P$ _& C
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) 3 x+ O' q @* E9 h! R' c6 G
set k (k + 1)/ \! p* ^3 V4 `1 M" M
]: [" I' E- f3 H6 a% H
set [local-reputation] of myself (local)1 g, S* s n1 `( H$ j! Q% I" Q
end+ u1 f& j6 F- o/ A! G
8 M- S: H* K! }- Hto update-neighbor-total
. s/ S+ X- J1 a9 g' A* O" ?- [% P& C3 f; I1 B$ V
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
0 d& z1 j) J4 w0 W, I+ r6 y1 Q1 v0 E; V& P6 J3 m4 s! X
9 O6 r F/ Z) v Rend% d: H- g2 ]7 T2 E# S
! C2 h7 \$ z& `+ Uto update-credibility-ijl 1 ^# w, v( q# K3 \
8 A$ B9 q4 q$ c r+ |0 u" t2 n- u
;;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。7 n. F( f6 m% [* Z( s, ^
let l 0
7 x) v% G/ L6 m3 Y) ^8 z4 Ewhile[ l < people ]& ]( o% ^# Z" @ q7 r! _: ~. A
;;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
8 I( V1 s) U) J& I( Y. T* S[
- E1 c" v+ w- W0 w" M. ?) clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
! G7 T5 h: ~ \6 kif (trade-record-one-j-l-len > 3)$ I& J7 C' t: o$ B
[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
) j2 s4 g. w% b1 \let i 3& x. i0 U/ \, a( c3 {
let sum-time 0
0 i' ]5 u% y2 v z: r' kwhile[i < trade-record-one-len]
: F0 S5 j; m, o8 F[
2 N6 s& L) u, \& ` O( [/ O5 X* k: Nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ `- j; _/ o2 W/ Jset i
. ]0 R# I s& r# R2 y2 a/ M$ ^( i + 1)
" ~+ x/ h1 H, B! I" C/ G C& P# ?]( z3 a$ s- J. j7 e
let credibility-i-j-l 0
" k! R) i; d1 g) a8 ]( I;;i评价(j对jl的评价)
3 z4 c7 F/ I# t" k+ H9 Mlet j 3+ z: R+ y, H7 ~5 p% p
let k 4
$ V" J! i# B1 R0 Jwhile[j < trade-record-one-len]# O* e7 `1 V- c5 o; S0 ^0 P
[
6 v' I8 e' c7 k& |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
+ X3 T4 p4 w- {$ M) @) mset 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)4 K7 ~( N6 Y# [
set j
! V. }$ _" o. Q; U( j + 1)
; I p/ [9 y2 Q9 @]' g( z- N9 P5 x' k9 {5 g$ ^5 a* t
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 ))3 n% p9 N p. a3 x9 T: x
8 H F7 q7 A. U0 V& E
# C" D9 K. R9 e) \, [let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): ] J: {- R! s0 {2 v+ G4 S1 S8 _/ z: F7 ?
;;及时更新i对l的评价质量的评价2 t% Z5 U% V: j% l! d9 a
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 |1 D& W' B R
set l (l + 1), a2 @- Y+ p- w- l5 B' k+ ?. {# u
]) j$ V: ^: b8 \9 ~
end
' k# [. p# m% q( m
! v! X* B1 E7 V8 R8 i: `to update-credibility-list! t+ J* ~ I$ o0 M# b; e
let i 0
9 ?& R9 M# j- r7 ?) \! h, a& ]while[i < people]+ y- N/ z$ C+ L0 n/ }
[
, M! I" n+ @+ |) [" N# M9 r, blet j 00 h- I. x G& T; ]/ @9 C- x
let note 0
" l+ Y* q+ o e7 E6 A% \4 Elet k 00 t5 |+ y) ~; Z! E
;;计作出过评价的邻居节点的数目: @9 n# U6 l7 }: H8 U r
while[j < people] O2 l& g8 M) H7 K9 @: K3 Q
[
& [% X' i* M2 W' Y5 U. pif (item j( [credibility] of turtle (i + 1)) != -1)" M6 h% E0 p; n( h8 J
;;判断是否给本turtle的评价质量做出过评价的节点
; g0 d8 m/ H% [! p3 x: u/ [[set note (note + item j ([credibility]of turtle (i + 1)))
7 @7 Y x0 A! _' ~# Q q;;*(exp (-(people - 2)))/(people - 2))]( g6 t3 j+ z6 u2 ^5 d
set k (k + 1)
7 G6 H# D) W S* [6 b]
+ I6 ^- A7 }# e( m- r& t- x* ]9 sset j (j + 1)
; B. M( ~( F9 D. J]& z" B& J$ a- Z3 z
set note (note *(exp (- (1 / k)))/ k) @: A" f! ^5 s6 Z* Z n0 t
set credibility-list (replace-item i credibility-list note)
/ S0 i6 R; t1 k$ r, o7 V7 _0 b0 d5 oset i (i + 1); F& B) t* A; P: B& P$ n
]
0 Z" a4 j) W& Q4 v* ~end5 P0 d( L( t: Q2 V) |
3 i, f3 s% |9 S" v& F
to update-global-reputation-list
7 a0 D) n" ^/ p8 v( c1 b. Vlet j 0
, b- ~# S5 Z& V8 ? f6 vwhile[j < people]8 J$ X1 Q9 F9 V" L! G, ?
[
$ C; f `( h2 A% Flet new 0, ?8 P% m) f) I- L+ E' `" _
;;暂存新的一个全局声誉
: z+ {; e5 s2 |7 c& { [let i 0$ X+ q3 o* C( ^5 i
let sum-money 0
8 X& h/ |+ h: s$ X# P2 N! hlet credibility-money 0) c+ {; N+ D- F7 B
while [i < people]8 G: |- e8 E( b, t
[4 j) k& |1 r8 N. p
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# \( L+ A b. g& u/ c% e
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) O9 x* K, c! eset i (i + 1)3 ?! }9 s/ Q8 z6 j
]& G. @. d6 ~6 s
let k 0# x7 z& t: t. l- a8 I* b
let new1 0
1 t; \# \) s) p8 c+ `while [k < people]
3 Q# t: ~7 t/ i7 r( U[, a0 o7 I# q* k& w5 c3 X$ s
set 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)
E1 }* {; V A5 X! r2 W& Bset k (k + 1)
2 V' u, Z5 r' V5 V, z]0 |7 @. {$ U$ ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 w8 @- e$ S5 a0 ^, O3 Oset global-reputation-list (replace-item j global-reputation-list new)- D* N6 v( h% q% Y+ F6 z/ N
set j (j + 1)
) ~2 b, @5 X# v4 n3 }( N]: p( |/ f; O K4 e; d5 }4 d
end
: C0 E! B$ n/ u( y: L0 p. d* q0 u, ^" H" `1 P* n/ L2 o' v( l
6 Z6 m4 a4 ]4 a- o4 X
/ y: c8 y, {$ u: n/ p4 s
to get-color
8 v2 z% }8 `5 B% t- }5 M- w6 F( a
8 H8 c7 Z3 X7 E3 N. Z( g9 J) cset color blue
( }) Q- B4 H* o% ^2 F8 Y0 Cend, m% g" Z$ K8 `" P! v
+ o7 u6 n& M9 e8 m5 |
to poll-class$ J, P4 u. a/ q: n9 N" ~/ i! E
end
( {6 b5 [' _7 g0 K% n6 ~
( }1 W6 {5 O$ C5 W e, fto setup-plot1% \7 `. D) v! C: G2 E& _
2 p: W2 c. h! [$ r4 d
set-current-plot "Trends-of-Local-reputation"
# [/ c6 w0 N5 z5 Y* t6 @: f) q, x9 u! F9 ]
set-plot-x-range 0 xmax4 R; u! Z5 \' C
% L0 Q$ e. C( m, ^
set-plot-y-range 0.0 ymax$ |, N* ]$ |+ {8 q8 r+ U
end$ T" v9 k7 }1 ^0 E3 V/ |7 c5 I& R$ q
' f+ e& {( r: w: Xto setup-plot2) m4 _" O0 O6 P9 H5 O
9 e# f0 f0 {! {) O* i I% |set-current-plot "Trends-of-global-reputation"* x' Q0 u9 o+ A- v# ?, e
' a7 z4 a+ g9 L& D$ x& u, H9 U
set-plot-x-range 0 xmax
5 A1 j4 {5 i2 P5 k! h F
1 ^+ Y/ F0 A8 Gset-plot-y-range 0.0 ymax; j5 `; H* u& x) x1 q, J
end
7 ?! s" u3 d" S8 b# L8 M) o/ \5 I6 m* W/ |" c5 U2 z+ i
to setup-plot3% O( E$ d; {) p3 D3 I
' b( ]( A( [: P: A# P) G2 X7 Dset-current-plot "Trends-of-credibility"
% S6 B$ y% C5 R7 W7 [- @0 H
2 D! [" i& Z j" y+ oset-plot-x-range 0 xmax' }' P, Z6 b c4 N
1 q2 q. s( ^; |2 N1 w; @$ Wset-plot-y-range 0.0 ymax2 r' w( `$ R S& ~8 r- y/ l+ n
end8 f! u% }4 P2 Z6 F k9 e
0 s$ r k4 N0 t: qto do-plots
) S! [8 _7 ]2 Tset-current-plot "Trends-of-Local-reputation"" o$ c% G4 E3 k8 t* h* k$ l2 N, J
set-current-plot-pen "Honest service"0 O4 q! L; r# ]: r; ~" h6 l# Z
end
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8 d& k% r- ?9 y- U[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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