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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
9 \( c ]0 ~& Sglobals[5 V# s0 a6 G4 S5 e6 h
xmax
1 X6 h4 H5 u. q5 v2 qymax
2 s$ |2 X, s$ p; i( M( f- Q7 ^2 V! Yglobal-reputation-list
) i# H$ ~1 X" l) q' ^" @- D3 V+ n; t1 f4 R
;;每一个turtle的全局声誉都存在此LIST中
6 m: i) V& J: |* N/ ` ~' Ecredibility-list
N. Y" @/ i$ R" [- q;;每一个turtle的评价可信度
' d A. r. z* {2 `8 O% |honest-service9 k' `( ]" U& T2 d8 N% _
unhonest-service
3 i: F* K. h5 R% l: U% W- G$ ~oscillation0 ~7 `% a: Y& L$ W) W
rand-dynamic- t8 n1 X' ?2 E* _, n3 n# K: l+ E$ X
]
+ k9 c9 L* a% a; t) \# o/ ?5 y+ z% l; z$ r6 r
turtles-own[
+ ]: a* Z6 ^* E: W+ n; j wtrade-record-all- J3 d0 n8 @/ S. }5 e9 g8 w
;;a list of lists,由trade-record-one组成/ h) ^* j; C. H8 y( n6 N
trade-record-one
9 a7 u, N; ?: w5 \& X1 ^7 I: s) X" u;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& R: E O. O; N! l: [
# e. g4 O: a+ X; \* k$ ];;[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]]
" W9 V2 q. U+ g# X7 _9 Ktrade-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]
! [* H. L7 b! vcredibility-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/ q; q$ ^3 O/ A: z' Y
neighbor-total
. y4 |% u2 V9 M;;记录该turtle的邻居节点的数目
' z( M! U' H1 g8 W# y% ~trade-time: o* q' g- i' X0 B% \# A
;;当前发生交易的turtle的交易时间& B( y1 c+ u% O% m
appraise-give
! }4 H! x$ ]4 e' T( {;;当前发生交易时给出的评价: n6 S& `# B* ?
appraise-receive2 c8 T7 R: V' p# |+ ~2 H5 e
;;当前发生交易时收到的评价5 o2 b$ M0 `1 s% ?6 g
appraise-time
: e$ a* k' h- R V;;当前发生交易时的评价时间
3 d2 I+ D' B4 o2 o d) Hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉2 R. @% o6 I' v9 l
trade-times-total
. w7 x( @( s" J( h% Q; E+ H;;与当前turtle的交易总次数6 Q; W4 a2 h1 @9 j4 R7 N" n
trade-money-total
3 _5 L# N$ S# r/ W3 ]% U. \;;与当前turtle的交易总金额
7 m$ a4 b$ E, ?2 A7 glocal-reputation
; v8 d: T4 P) h- K* B5 {global-reputation
Y R7 }: a: P4 Ccredibility
; o, c6 w1 l* |# h2 A;;评价可信度,每次交易后都需要更新( s7 j, y1 u3 L% }+ |: j+ `, N+ x
credibility-all
; h1 M$ m) q" D6 z- v;;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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;;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
|% ~3 }' m/ J/ v% }credibility-one* `5 W! z: ]0 A7 K3 `
;;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
3 `( X* p B: o, t+ nglobal-proportion0 ^' Q1 Y! c5 K" q
customer
2 c5 v$ \. J+ z. _' ?- s1 ?6 fcustomer-no
# y; T' R9 o; u8 `0 [# X/ ptrust-ok
! z/ |( j" K& D) utrade-record-one-len;;trade-record-one的长度, u7 y0 a0 E7 }
] m2 F$ Q: o- I! g) A, U! g
: Y9 U2 H) b0 Y0 X& y
;;setup procedure% l$ S6 r2 Q; T" N
% p' n6 j5 k) j4 _3 d
to setup
0 R( X% R7 H. Y' ^7 O& k" [8 E% T( J, `
ca
7 V( D1 q/ N. H8 S" w2 s) E! f* g1 R1 Q) j: ?
initialize-settings- p$ S$ a6 \) Q f# h
) [6 k- v) b' m& O. dcrt people [setup-turtles]7 K* ^0 h6 s% j; D
6 S8 n; D6 ?6 B. X: l" L! y9 D/ Yreset-timer
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poll-class7 `1 f, q) k1 R* F4 f5 i
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setup-plots
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" T, l& ~" K! J" A1 zdo-plots
1 d/ I, J% C ~# jend
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8 H/ O% z+ l9 q$ `! {* H, v7 n9 Lto initialize-settings2 O2 G1 P* x: `) c* J( _/ W% f
. k" d! g- A( c7 a* E! H
set global-reputation-list []0 c. X% P1 w; j
; F" D# U a- U8 a
set credibility-list n-values people [0.5]
4 s k7 b2 {! j" z# A1 L2 s. ]' M/ f" K. @7 R
set honest-service 0
( D% ^, b6 O4 L: \ ~1 `/ u; [* g- k7 o, X( R' M
set unhonest-service 0/ O9 ]+ ?' w2 v1 N V6 R
8 _$ b! L& [! d+ A0 Z! G3 A- b" bset oscillation 0
4 v9 [. Q0 w5 V/ T/ h9 i p1 k8 s5 H; K7 n' L2 ]' e8 b
set rand-dynamic 0
$ _# h; r/ C0 ]0 Dend( n8 q+ B P3 `& {, a8 G1 ^
; a1 Z& W1 ~2 n+ P" Z5 Qto setup-turtles
0 v( {' A) s3 P! N, T$ Aset shape "person"
+ W( a2 ~6 U/ @2 Usetxy random-xcor random-ycor
! V0 v6 G* P! Q' M% Gset trade-record-one []9 @, B. t+ b3 X ^ B: j
5 m; M P2 x. ?% Z5 K
set trade-record-all n-values people [(list (? + 1) 0 0)] Y" T% c3 H! ?# c9 ?
9 T+ M' Z# E, Y+ i$ ?& T
set trade-record-current []
( Q2 K6 e3 a% I' Iset credibility-receive []! b: n) u, ~( A# |5 h
set local-reputation 0.5
! o& f8 _ W+ J8 E% Eset neighbor-total 0
. H" m" q1 J8 G% Yset trade-times-total 0/ ~0 Q! n2 k" k5 {
set trade-money-total 04 g/ h' q- j& { M9 E
set customer nobody
8 W& P6 @- P3 g1 }1 [/ W; m0 Mset credibility-all n-values people [creat-credibility]+ H8 n8 d$ ?& m! T8 _7 _
set credibility n-values people [-1]
3 X8 T! q' r4 v2 n+ nget-color
% Q# W# G6 ]! Z" V" n Y }8 t& i$ F8 m- Q! g
end+ |- C% e% a5 X, a, J) L8 W1 c# S. O
- Z8 L) H3 Y& N" Hto-report creat-credibility
. D8 U6 U( k$ M" J' Z) dreport n-values people [0.5]" _$ W* k. x( Z. c1 \
end
/ A( F% G- c9 k3 B- j) T4 V
) D a6 k, F: ^to setup-plots1 s8 S; ^% C- a7 I1 p$ j% `
- K4 K. l `- T9 w8 H8 J% F3 Vset xmax 30
' E8 p" _, x5 P* W: f# M; M @% b# o' e S) o' F; w
set ymax 1.0
, ^: E3 T, E# }) A
& \9 f5 Y2 f( ^9 e. z# h' sclear-all-plots) v8 r* J% Q$ ^' t; D+ F; b
" M, L8 S7 @0 d' D" j+ k0 F
setup-plot1. b8 b$ S# m3 Q
' X% n1 l ^3 d' k B
setup-plot2. `* ]+ s+ i z; | v
w8 h @+ ?7 E. g: c$ M& A* W! x7 I, asetup-plot3) S# @0 z$ V# y
end
8 t3 M! I9 t# z. }. n2 ]0 g
& x/ X9 t5 H: I7 M+ h; b;;run time procedures
( Y5 g7 j$ p1 E! V2 h0 `# u& A1 l+ b P+ d
to go
& Y- ?* h$ c; O* N& f# e- h! w
ask turtles [do-business]
1 {3 Q1 ]+ o2 m( uend( r. G& V1 O/ W& H# n
1 S0 l! j+ a- i/ rto do-business
% [5 f, P- C: Q5 Z& U
i) e6 B. m* z6 V
0 S* X% g6 I# A( Hrt random 360
6 |* @! x- X: U1 T4 A- y1 c& U( G0 ^% k7 K8 r. i
fd 1
* `6 C8 }3 v0 \: o4 i5 C5 h1 q ]4 M1 V% O" u |! N# `
ifelse(other turtles-here != nobody)[, n& u9 T: t$ B/ n+ P
# ?/ o; u9 f* _! A% }set customer one-of other turtles-here9 L) j7 P, W) C2 x
+ |* D) `( ~0 ^3 h1 f;; set [customer] of customer myself4 |7 N% Y9 S$ p/ l" z- c
! Y9 D) m* ~. m1 Pset [trade-record-one] of self item (([who] of customer) - 1)
~6 g# R k) h7 M[trade-record-all]of self
2 e* n2 G6 t. y" z; {& _8 p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& J4 Y# _5 g y% U/ m J
p; f" e- @$ E/ {8 r% \set [trade-record-one] of customer item (([who] of self) - 1); h. G% s }0 u& z/ s [$ M
[trade-record-all]of customer
+ X- ^) M. ~- P: o6 }* {
* e3 n8 L' ~. | j# tset [trade-record-one-len] of self length [trade-record-one] of self: A% K) Z0 q, t7 ?
7 c( s* s4 o& ^3 p/ s. K/ W1 _' _set trade-record-current( list (timer) (random money-upper-limit))8 H# h% t8 D9 D. F; M X
2 Q8 x I* H- d% F& v$ ?- B
ask self [do-trust] T' `! U! M, [& P
;;先求i对j的信任度
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if ([trust-ok] of self)
1 j- x* u* v) c+ W1 {7 S# k6 j;;根据i对j的信任度来决定是否与j进行交易[- d. j6 x0 o( t( C+ @# G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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& l* I% [# w( m# Z& Q8 g[
1 I/ F8 B! Z/ ^0 v r7 v9 A- F) g4 z) @, n
do-trade" \# T, J7 B, D% r
5 [" x9 A. w3 U1 H# s7 t% Z6 Y
update-credibility-ijl
: R6 e5 x4 W! M5 j0 Z" L
- S; R6 Y u7 d4 Mupdate-credibility-list
y9 p* D* X5 ]9 ?: U1 @% i% `7 H* J8 _/ K( q6 ]
& _& G. _4 k1 O9 C5 D2 `+ H1 m5 Rupdate-global-reputation-list
" f: v5 n! w# r" a+ J ]6 a' u9 u5 Z$ z' B. l) z" g
poll-class; N' g. A& l1 f# ^
* {, Y3 X: B' c1 g4 {3 ^8 M' _
get-color
! _6 _! y g$ L7 z4 D$ g- H5 H0 Y! [& e" j2 ]
]]+ ~% {5 ~ G h$ l3 {$ m) ?
- L% ^% ]% \/ u& c; y" };;如果所得的信任度满足条件,则进行交易
8 Z% r6 y5 g# B5 w3 V5 d4 {. C- Y5 K# @2 O
[
! g4 o0 `' U7 a3 D# I# t" c* V& r2 y0 x
rt random 360
5 A* F! }: J( } p/ q8 J8 `! a, _* T% i w
fd 15 o) f5 i k1 k1 t
! @- T1 T" z6 E4 G _
]
$ y2 d9 y% S2 _) @+ q
: D7 M" l% b: d- m3 A8 a+ Tend5 q8 w* t7 _, ]3 z* P# I0 D
+ P" E1 X3 e+ x4 U8 \1 Z
to do-trust 8 q' |$ y% l* Q* \/ k/ E; t
set trust-ok False
5 ]. B- ^' T9 R, q) |$ l8 \: X5 f
/ M; k9 D' U; }( k5 O, q; j" R
let max-trade-times 0: U1 n( L- p( R4 K% f6 @9 c3 _( r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 R, N3 c, h( t& d7 Elet max-trade-money 0
7 ]4 Z# ]$ S( B5 ^) q* bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ {6 Q: @4 W/ x5 m- f% B; v
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' |' F0 A" J: C5 G) x( D9 k3 ~! m/ S; j( b! c
, m6 c" O6 f- z; r( H
get-global-proportion; Y4 [$ Z! @& J
let trust-value2 g/ M" D4 i! V7 o, K- g* E
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)
3 w J% ?6 T5 m/ L+ r) gif(trust-value > trade-trust-value)3 N: i9 \- |: n9 D- J2 b! ]( z* Z8 U- t
[set trust-ok true]
& a4 z7 c( A; A) E8 f& r% F+ _end" l0 M1 ^8 l4 x }. F% L! |7 r# C8 L
- p; `" K1 g$ m* y4 o1 f3 f
to get-global-proportion: b5 J9 x) N6 c$ w- p" w; a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 q& a# Z: ]- t[set global-proportion 0]* y7 ]* y( a! [2 z' a5 r$ C+ |
[let i 0+ `3 L' V, U- V- a8 \3 L2 }
let sum-money 0
, X: _ I: {; U) M+ d6 c" Qwhile[ i < people]- ^) l& ]+ w- l( H3 {# y. E# P
[9 B o" R# ]! E8 |/ g
if( length (item i
8 P, j( k- `: t% `8 D[trade-record-all] of customer) > 3 )0 C; d% t! G0 n! ^ V
[7 s# V' W" P2 P
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))% i( J8 [6 Z' h0 t1 T, ~
]2 B: A& O; R: _4 g5 E" ?! j: H, Q
]
/ \9 ^) Q# [9 u. r* D# ylet j 00 f. C7 B0 {$ m- g0 I7 V$ M" W
let note 0
2 t. U* `# P& d9 k( D* Dwhile[ j < people]" _( R& [/ f1 r# |6 }
[
7 {4 h; |7 M/ f% _ aif( length (item i& Z; L h c0 v1 }7 y6 z
[trade-record-all] of customer) > 3 )
3 n% z! O; e9 S[ ]; W; m9 k; E: f( x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 F1 ]5 ~. f5 H
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. Z# R3 v" ~4 G: ]* @% C" {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], d2 Q! E, Z$ o1 {' }: i; j8 @. Y
]
9 a4 l+ |. `0 n. q/ E3 g9 }5 U]
5 g5 @( N3 P, u2 J. {9 _" M1 Sset global-proportion note5 f0 C7 C J3 {, {4 Y
]
& @) S( i% `( a% C, Wend
8 Q. l$ c! j. y- M% ?8 N
/ ?. D; C) V# [/ d8 n1 vto do-trade5 p" k9 L' K1 }/ e5 ?! `- m
;;这个过程实际上是给双方作出评价的过程: a6 h C: I' A5 o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ r, N r; {9 T8 z0 p2 qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: ^& j3 T8 J" M+ L* s) y! x. e
set trade-record-current lput(timer) trade-record-current3 w" {- y2 e( M. @' t
;;评价时间
: g: @ C/ G* k+ w9 aask myself [( }# d4 c* N4 q- A; D- v
update-local-reputation: A) }' x: _, r6 I8 v" Y
set trade-record-current lput([local-reputation] of myself) trade-record-current( u6 W) s0 z3 r6 i- R7 c5 f
]
+ z2 L0 C: W$ |+ {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 ? ]4 A2 P* l2 P; X- {4 D
;;将此次交易的记录加入到trade-record-one中
2 f7 G8 @( S; \3 D5 T5 A4 J, Cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% B4 B2 r; h$ xlet note (item 2 trade-record-current )
; g& D. a1 i0 w8 fset trade-record-current9 U) ^; U4 W& V* E; J @
(replace-item 2 trade-record-current (item 3 trade-record-current))5 G6 F1 B) g" q4 [. V& _
set trade-record-current
& {4 C0 Q2 k2 F+ U4 \3 @2 x, {(replace-item 3 trade-record-current note)3 d5 ?+ z8 J+ `6 G0 n! j
; |3 b9 Q6 Y$ J+ I) k
: O; c' k" T- |: ?" K4 D" l% N& B* pask customer [
/ i+ P( n4 f* A! A' P4 wupdate-local-reputation
/ C8 L% [# J8 P4 W! Y9 `set trade-record-current
3 m( \5 t7 T6 b5 \' `- ?% i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 }1 b9 P# q# l* F6 Q
]
" F& T! o; Q$ }3 H( |+ z7 H: m! G. c. u' ^! ]5 L# f
- v H! u3 \2 p
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
6 d# ]2 E6 J# H6 x/ S3 R
# B6 Q) \+ q4 ^0 K/ qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% V6 R6 K" x6 P _; G5 `;;将此次交易的记录加入到customer的trade-record-all中5 o; M5 G* T' r0 L' F5 u: z/ [
end2 t2 @9 U( {2 v9 e# A# e7 Z1 M
+ q( |7 }' k B, Z# j' Oto update-local-reputation
( @+ V# t: I6 ]5 t+ p; B* {set [trade-record-one-len] of myself length [trade-record-one] of myself4 B- s J8 O J/ ?6 R
7 d: z$ y4 T9 T* ]! Y
# k' E: r& R% v0 \# j. n2 u3 N) C) Y;;if [trade-record-one-len] of myself > 3 1 _2 A* u* O! p2 l: S2 B& i4 j! v
update-neighbor-total& g# A/ o9 ` G) u+ r
;;更新邻居节点的数目,在此进行
4 J8 N6 z7 U. ]let i 3
5 W, m0 a* }- N2 }% B( B& ?3 dlet sum-time 09 v7 l. c5 P% m3 l. a4 {
while[i < [trade-record-one-len] of myself]
, U6 w. J* j) t5 G[( q r1 c+ ^5 B$ s8 l6 L! z% W
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). p2 i/ P' ~0 ]( k
set i
* G% x0 O n5 D1 S( i + 1)
}4 u$ H; ?. }' w- O]+ }% b6 d7 b2 A* U/ K) P% ^
let j 3
' H9 E$ k% U5 `8 G8 ^! m+ elet sum-money 0
, C' B. I5 x: {while[j < [trade-record-one-len] of myself]+ L; ^5 l3 r$ t U6 @2 c4 q0 U) `
[2 T1 A* u2 `0 N' v) t2 i {! A
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)
/ M. Q) \0 K2 h1 Eset j( E# b R4 n6 d! P- m4 x' W4 V& T
( j + 1)
8 N% b0 `% S4 ~$ W, a* E/ o e2 A]
c- u. t+ X% C( _& _4 @+ a) _3 Llet k 33 R( }2 r. k+ c" b* M
let power 0: x. ]& M2 `) \" w8 D
let local 08 D3 _$ d. {# ]8 K
while [k <[trade-record-one-len] of myself]6 f O6 C2 F+ ]; n" w& m+ z
[7 ^1 X$ i* U! w2 `2 \* b
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) * x5 h' i: b" r8 e) d6 _6 V
set k (k + 1); d6 [% H. X1 \' ] r' }/ a
]2 S8 J9 d0 D3 _5 G5 |" s3 s, e
set [local-reputation] of myself (local)
9 [; W. O O) j, V9 mend" F' r) d* g* M0 z/ f, u
& Q2 }. X9 m; p+ M- l6 rto update-neighbor-total1 T" C2 M* T" n, S
% w6 _9 u2 F2 A8 i, }
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; G1 }) N9 B( y' @. o1 ]" @
5 F, g. F* U9 f- D! \6 W0 n1 |
' m' }" G. S( \4 _9 [/ nend3 k8 R9 f6 [/ j& `0 [& J# }3 w
' r/ f( Z' D1 ]0 L; J4 \to update-credibility-ijl
( a& d7 z$ W+ [/ b4 e: H) ~1 i' b' Q
;;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。 L$ ~3 H K1 w% |: X# R7 A
let l 09 h! {; D0 m. t
while[ l < people ]$ ~9 I8 ?9 V! R1 y# b% \
;;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
3 D" f. \& P, N( \/ y[- P4 m2 y: R" v H2 W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 ^4 R( z) @ @3 I8 v; p4 a
if (trade-record-one-j-l-len > 3)% I! Z) q# }1 [4 D. `0 A+ U
[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: z# Z3 V0 ~: [* t
let i 3
4 l4 q/ Z5 Y+ `+ J3 K! ^) V7 e& Llet sum-time 0
2 b/ ]" Y3 R& nwhile[i < trade-record-one-len]
. |7 l# q( Q* F1 N" P, h4 W. m[
) j; f* t T% G$ Z& zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 a$ e& H$ \! C) x1 aset i ~; F" a# `4 E. b. v7 S
( i + 1)
" A/ b( a x9 N" a e) S]
+ p( V8 d4 `/ t2 Z( s2 v0 W6 W, mlet credibility-i-j-l 0) d) F O* g# t$ v, q5 Y: T
;;i评价(j对jl的评价)
- w6 J" s( V1 ylet j 3
' G/ \) ^- t- `% E( ^5 [! [8 @let k 4
! ]2 U* R+ O9 g& V# Dwhile[j < trade-record-one-len]
1 f3 u4 |9 t! ^, w% ][; ?( o2 V. T* ^$ z
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
: p2 N. i3 v& q, ?! x) ^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)
/ g# R) ]3 m4 k6 P( K( Q% b; v [set j
8 J" h* K* _( N1 H; R5 ]7 x1 B' ~( j + 1)
: V* t6 W* h1 }( I0 U$ r! o8 {1 ^]
% S5 w& |- C5 q ` t0 xset [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 ))
$ j& k& j* ]( P9 l: R7 K' g# z( x% `) O& b% C
2 j+ o' T7 h6 L. j) jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 R' E$ o( ?4 r. m6 [) x;;及时更新i对l的评价质量的评价2 M2 q4 V0 A0 k( t& G- @6 o
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( B2 M+ G5 [% d4 `& ]- h, v. o
set l (l + 1)
3 \% i$ `/ h# Z0 C- Y, u]( V0 }: m4 {9 H a% c% F
end
" u; q6 V M/ F- Q: f6 Y! a( ?4 G
to update-credibility-list5 d+ ]/ l& s- q; r
let i 0. b8 E/ ?. B9 @: w: }+ r- L
while[i < people], E/ [4 Q- `5 G" N' Y4 d
[
c' b: P t& k! tlet j 0
' V% g& t$ Q! F5 | L' F/ s6 ?* k* v& z$ }let note 05 W4 R' p# F& ]9 [, J0 k
let k 07 l. F% @# R' W0 B4 X( _1 W! C4 f
;;计作出过评价的邻居节点的数目" e0 I1 X/ K) L: |) Q. p: ~
while[j < people]+ F, j8 a# l! D9 w X
[
' t# O+ L# U& t5 Oif (item j( [credibility] of turtle (i + 1)) != -1)( K1 |; A( I& f$ u* O+ g, U( Z
;;判断是否给本turtle的评价质量做出过评价的节点2 F" R+ ]1 E! p. v" c0 V9 b, [; x
[set note (note + item j ([credibility]of turtle (i + 1)))6 ?9 q2 n$ w& k4 s0 F7 C5 [7 [
;;*(exp (-(people - 2)))/(people - 2))]
7 r' {# x: n# |6 S3 ^- u, g8 E2 Nset k (k + 1)) `9 @8 V* T# R5 a( B$ y+ E/ g
]
, f! G8 |3 v- q- R- G+ jset j (j + 1); e9 M e& @4 V* P1 L: `
], x7 m; x( n' ~- D
set note (note *(exp (- (1 / k)))/ k)+ q4 [1 G% Z4 G
set credibility-list (replace-item i credibility-list note)
7 J1 [( s" b' zset i (i + 1)+ J/ M3 [: F& k1 m, }) R8 D
]
" j1 w+ C9 b& Tend# M, q8 N* Q0 C1 E
4 {$ a( W* {4 g' e! J5 \
to update-global-reputation-list* ?; G% D% |4 O& _9 L
let j 0( R2 d" r; O# `$ z. O
while[j < people]: f. b8 b E; m. c
[
" f" I9 s3 N9 X5 r2 k xlet new 0
8 L$ p1 w6 c8 l0 W# q: X* E; Y;;暂存新的一个全局声誉" J; t | u$ L( \( K, c
let i 0
2 w. K/ ?; ^* Nlet sum-money 02 J- U) m( w0 U
let credibility-money 0
% C, x8 |2 h6 Y8 Jwhile [i < people]) V3 |% q+ t- v4 S
[. m- N& I8 U, M$ T; y, Q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 |* [: D. ~, Z7 m1 i; p; s. }8 m& [
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" Y4 z! P& [ P+ H
set i (i + 1)2 r, j! [( ?" K+ J$ N8 V
]; _. H i5 L0 S1 O9 L$ y$ X
let k 0
o8 W4 s/ A8 V+ g+ x; i! flet new1 0
0 G) E+ l( m( |+ pwhile [k < people]* w e. d# e/ K5 O5 u; G+ d$ w
[/ G8 ]/ v5 A; ^1 |+ P
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); q1 m: E [/ d9 J- p
set k (k + 1)
7 L$ k& n% y( f) j2 K( ?0 E]
$ Z8 P: R' n, \% V+ w2 i$ Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 G0 k# ]% H2 b4 K2 G
set global-reputation-list (replace-item j global-reputation-list new)
4 S9 A- g& F. a1 _, Dset j (j + 1)
" P) f* u! X2 M# m2 ^! a9 W6 E]
) W$ C3 w: j$ b6 C4 p$ k( bend& L! X' b1 z, e: I; ~# L9 ^/ J
+ l" ?: L# K6 u3 x0 ?$ o
. z' M# U6 F2 M+ @! j( j: {* t. c" o7 w3 F
to get-color$ H A* R* b0 A& X1 k
# \, U5 Z# j2 y5 q! I
set color blue J r- Y5 R" R4 H2 f! E
end
% t4 ?6 N7 |* z4 U2 U- F8 ^% B4 p$ H4 C, F
to poll-class6 k u# y7 y8 j
end \/ u3 }$ g4 s6 t& _( ?- G8 s* B8 O
! s6 Q$ `- n7 X* t) t' n3 Z
to setup-plot1
2 ~' P- Y9 s# R) e. B% ~: }
/ n& ?) f& i; t' q. cset-current-plot "Trends-of-Local-reputation"+ X3 H/ ~- z# f9 m
/ x, _( w3 _4 b1 Aset-plot-x-range 0 xmax
2 K$ g/ {) K; o3 D% a- A. Y; ~2 I( W5 q! z2 N) m9 @! Q
set-plot-y-range 0.0 ymax
' r" M+ e0 |/ I2 ~; o: p- Rend
9 B$ z# P" ?' f- l! T- A3 G. [6 n
. ]! s: Z, V% U# Uto setup-plot21 b( V# n1 D5 b5 C2 d
2 m, r7 @+ H$ j, u% Z
set-current-plot "Trends-of-global-reputation", p! U% Y+ c5 u$ X1 b
; K- w( N: @& W( x3 k$ fset-plot-x-range 0 xmax& H+ @' ]: o2 p$ g
: T1 o' x- c, c6 Dset-plot-y-range 0.0 ymax2 ^1 J' @5 R' o: K+ U/ `; n9 y
end' S) R1 N0 Z9 Z5 I8 i, ?
# B8 w5 P9 {% d% B' d
to setup-plot3
7 h% |2 C, ~! o3 H" ]0 V( x
$ i7 a3 u4 Q3 F, `/ t" }4 \; Bset-current-plot "Trends-of-credibility"3 j. O6 D, C/ r. v3 a
+ h, C( e% }5 h" S" @set-plot-x-range 0 xmax
' C2 ]. J, `5 J/ I: T
- f8 L4 [0 ~. `& Tset-plot-y-range 0.0 ymax
5 T7 g- j5 f! y9 g6 j5 Q- Dend' v- w7 d9 `' s% s( ^
7 s4 Y+ R5 A3 i5 n: X, O
to do-plots0 y9 N/ S, u8 M" I# k$ q Z" C4 W
set-current-plot "Trends-of-Local-reputation"
, o: @7 H6 t3 i' ^3 a T' Vset-current-plot-pen "Honest service"9 W; g) e& M. j* i
end
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/ e1 t) t7 c7 k0 Z- m9 @[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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