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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, z8 g; N6 e6 a. ]9 W0 F- c0 \
globals[
/ I6 y \+ R4 [9 Nxmax) k6 c. a5 O* I
ymax0 D2 o7 ]- a* j. P2 ^
global-reputation-list& E7 i9 n. m1 {/ g% `
6 }( n/ C; m8 X2 q6 `& o;;每一个turtle的全局声誉都存在此LIST中% @6 \' L3 B$ \- p) c
credibility-list
/ K4 r n. {8 E+ F, K- O;;每一个turtle的评价可信度. A2 f8 P8 n6 E
honest-service" M4 V& j) @8 w4 D6 r
unhonest-service
( l/ k2 m& s# L2 \, |# S% i; doscillation! n. }: l" w( e5 {8 k+ Q/ t, h' B1 p
rand-dynamic
: u+ }( X( c2 W7 ~; H0 J]( y" R3 R; r" v" G& W O- X! U y
1 A9 g5 W7 T5 gturtles-own[
$ p4 O- E% F) n% Utrade-record-all. Q" m8 m) e k& V5 w) O
;;a list of lists,由trade-record-one组成
! L D5 r! f: ~7 D0 m% U9 F, Ltrade-record-one, b2 \" }1 I9 ]$ `0 j( T4 N' n& j- k; q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ e; Q& g' w q4 L* w
: X! i! S0 I/ I: q- s: |;;[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]]' E) M- R' s% E
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]) t2 N) h0 j/ V* A5 f% I
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+ X% M' X7 I/ B5 ^" A# k/ n1 Q5 _
neighbor-total
; P1 }& m9 y& P7 I" ?9 q& L;;记录该turtle的邻居节点的数目
* l" s5 }4 |- j1 Xtrade-time
" w( q0 c$ \$ j& i- m' E;;当前发生交易的turtle的交易时间
! u# k% V8 v3 N# M7 u0 U( ?appraise-give
4 b% |0 H7 b$ e6 p; L; s;;当前发生交易时给出的评价
0 k- ^/ Y/ E: M: w8 Happraise-receive
( J& b9 I6 l4 M4 H+ H8 p;;当前发生交易时收到的评价" u8 k( r2 _) s2 E
appraise-time
7 D) q- R$ `7 T0 C( t;;当前发生交易时的评价时间
' ?% ~, c) M0 c) p& Y) h; `local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 e5 f1 F3 S4 P3 C! I5 F
trade-times-total
+ b& Y/ N0 g3 a2 f;;与当前turtle的交易总次数
6 c, {% o% X O: T8 |' {trade-money-total0 N2 s8 Q6 d, ]% w
;;与当前turtle的交易总金额
0 J& C: D# e/ S- v7 blocal-reputation% G, ], W9 {! }3 u* H
global-reputation2 S& [; H+ N. O n2 ?1 Q( h, B
credibility
1 J" K7 v. ^, h, ?6 P L;;评价可信度,每次交易后都需要更新
" D$ C X% N- J6 v P2 g2 {! Rcredibility-all
l' I# b! p- b" D5 z& n1 P. e: f;;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
/ b+ G7 A2 }( p2 w. u/ G! s, _credibility-one
: `+ M a7 o$ u1 t;;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8 \+ V! U1 ~& R3 T& Z% M
global-proportion
. j$ i$ N0 C1 T$ K4 ccustomer
: N- c- S7 I- \customer-no
3 q! a# g( r6 u# i8 T6 z* Utrust-ok
. u6 E: D' p0 Q" w: a/ Wtrade-record-one-len;;trade-record-one的长度
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9 S* b( g& W" m' C. Q6 |! y4 L- X8 B( }
;;setup procedure
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to setup
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: ?5 e% v: ]2 e3 F1 ?* p Hca
& G' n: D- Z' h X) |& S m( c+ t7 l# z" c1 o- [
initialize-settings
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0 B' o* ]2 G8 {4 W, J7 ]crt people [setup-turtles]
9 k8 P, N+ H3 }3 \; a, _
, p! {) H1 ^- @5 K6 ]/ q8 breset-timer/ Z( B9 U" r& D" u1 W
4 A) k4 g6 ?' Y. c/ Y! F7 ?poll-class( t$ e7 x8 G1 ~! d% B
5 ^: N+ G0 P+ v* o9 P1 T
setup-plots
6 D& C9 z+ s: U: R# W
) m) |! U3 b6 E# v- W: m! s0 Xdo-plots3 k% X2 w9 u6 D: T6 r
end7 n+ P; S8 @' W
* g9 C% g0 G9 ]; u- w# X" U# K7 o
to initialize-settings
% l4 H' S2 x0 R4 K$ }( {' _
4 v* b" p1 Q7 oset global-reputation-list []: e! [ d% x, l$ l% q1 v" s! t
: x4 A& a0 i# A0 E4 A% a; f4 Lset credibility-list n-values people [0.5]; @0 O2 w; R/ W) p: m8 Z3 k$ K
& b+ B. e/ ]- T( a' ]% g8 B& B
set honest-service 0 R* M' r0 w* F) l" A6 ^
6 d; i/ D+ l: G5 U6 @$ J i
set unhonest-service 08 g/ n* A- |( @3 F4 P* l5 }% K
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set oscillation 0. ?; J+ q) B6 q
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set rand-dynamic 0' M, ^. A1 C1 n- c3 \, P
end( x1 l( ~# |3 i) ~- }' \: t0 V! B
4 o* W3 |& g, J ?4 l9 lto setup-turtles 5 T; b0 ]* e3 N% B! I+ \8 H
set shape "person"
3 S0 ~1 ^' g$ Ksetxy random-xcor random-ycor8 _8 Y" [* [3 F& B3 t+ {3 n
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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% S& X$ B! @4 R$ K' Sset trade-record-current []) E$ s9 z, D2 H, I/ i/ H% g
set credibility-receive []
$ I B2 Z4 V: K! v7 N& Wset local-reputation 0.5
* q. k* D% h' L {% U( f1 cset neighbor-total 02 F% ~. J' s( ~1 ?" ?. a2 R1 P- q
set trade-times-total 0& w3 |- p* E$ H* w* `
set trade-money-total 0/ d* Z' y) F4 t/ Q3 j, K: L: x
set customer nobody& D' z8 w+ Z' I7 t; Z$ V( i" g8 |
set credibility-all n-values people [creat-credibility]
( z+ q9 `2 i r/ k7 R; `set credibility n-values people [-1]7 \+ h7 V. i% [- }2 I9 m& F
get-color
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end
2 `2 R) T1 G% z; |7 c1 J8 k
- q N4 W3 h4 D5 f! \to-report creat-credibility# a$ p, D; z$ Q, c
report n-values people [0.5]
f' e+ G" V4 Y' r! oend
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8 f3 V; t( S Ato setup-plots) Z) j) C- N3 F+ v+ r2 `+ d
9 w! z2 k" ~2 P2 ]/ f1 yset xmax 30
# m6 b% x# Z+ V5 s" v. F. s/ S c9 [3 `5 J; o8 T
set ymax 1.0+ I( v9 ~/ y' [, f- Y5 h
4 u9 D/ W, o$ X% ^
clear-all-plots5 k3 H, }5 H! p6 T/ ~0 ]
# f& B- s% V5 U/ i2 _setup-plot1" ?) Z# Q$ E' E) X) M. ]. y; H- e
. z% m b3 F# n Lsetup-plot2
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% a3 o& v/ l( rsetup-plot34 d! G# p" [2 l o
end
$ y: r7 [% U/ b
( ~! a o) C) T$ A0 k2 O;;run time procedures( K- C. E) J$ v/ n/ r7 ~! w
; S3 i3 s' A! M E9 _& ~to go
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ask turtles [do-business]* Z2 \2 y. J, ]; W7 o" k; P, `/ m: m
end8 k% [% z0 {/ q3 I* {
% C& i) Q7 S/ p* ?/ [! T
to do-business 4 Y& }+ k$ |6 S! c/ Y8 O
6 T2 G5 v* h. |/ c; w3 I6 ~
, F1 {5 i' C$ Y2 [& Lrt random 360
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+ o# Z4 m4 p! w* }+ O0 v' kfd 18 T5 d% O" `' I
$ T% N6 F" q K6 _# C! y9 ]6 d
ifelse(other turtles-here != nobody)[
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% I4 \5 r' Z! f+ Cset customer one-of other turtles-here- q% F; }- [) L- r+ m) F$ O
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;; set [customer] of customer myself
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6 V/ a3 h; n3 e9 ~) uset [trade-record-one] of self item (([who] of customer) - 1)0 J+ t7 K* P5 z% X+ l* v
[trade-record-all]of self# h8 m8 t" x7 C' e/ k
;;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)7 A" j' @- w+ _- e0 h
[trade-record-all]of customer7 C0 V# w+ C8 _; P- }6 L
6 Q' q) W5 k6 E: {2 b
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))* O& _9 k* W2 N
" B) |0 O' q8 X: w$ ^- u2 Q3 Aask self [do-trust]
6 D5 F+ B4 D. q- z! k, c;;先求i对j的信任度
/ U7 n: h, a( g) d1 ^8 g! [! @) D9 L( i, j( R6 m' D/ S
if ([trust-ok] of self)
0 q5 O, R; C- K5 G+ V7 i;;根据i对j的信任度来决定是否与j进行交易[
2 J* b& n0 N/ Task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& D% @; x! ]$ y$ y% A- T8 E
! a* V# c4 i, l( ~: P[
9 v, S) H0 \7 W M' j- j8 T9 v/ |% y& {5 n6 U. \2 p) Q+ P
do-trade
$ Q9 A. Z: E Y. A7 o; B" O" [0 S7 a3 X: n; Y' l
update-credibility-ijl
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% \: c5 a; I# O# F" t `update-credibility-list% [5 O5 {1 `& X' N# r
V: ]" Y% D3 t% U G5 l; Z& K4 y0 S. u7 h/ }5 o9 @! g
update-global-reputation-list
$ I5 ^2 I2 A! D( H! c
; D% Q9 \+ c7 W y% e5 R, t8 @poll-class
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get-color' t1 Z R7 z! c- u. @' H! K8 R
3 P q- }5 a0 x7 F
]]
; p" D9 m7 [- ?" ^3 I1 [. P1 m
# z. {2 b) R3 F; M4 q# B;;如果所得的信任度满足条件,则进行交易
2 h W& r3 r2 \) ?' C$ M. D
1 l8 W- _3 P) s1 s8 X[
0 D5 Y; t; W# B; `9 a/ K" m. n5 k9 z; G, ?
rt random 3601 X7 H! \9 z( _/ f" J
/ o* O7 a/ A2 Z, t" A) {. M. X/ S
fd 19 P+ \+ ~$ h9 G H
- n% \( F, z6 ^3 i/ m( C8 i" A
]7 U/ U+ n+ C2 o2 ]; l& l
9 v4 Q, E8 S* K. y& z0 }- yend5 S" [: D( }. \+ @; ~7 V u
- w2 d& `! ^) L. gto do-trust 8 J# u: X( F& O% ~/ h
set trust-ok False$ L2 H! p# d8 k1 p
; L7 B, r1 c1 X% `
e* S( U+ e0 B4 e/ blet max-trade-times 06 t- Q# S& c- M+ ~- h+ Z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( t( i5 s) Q* {0 y2 `6 Qlet max-trade-money 0+ _+ U& C" ~$ `3 `
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 F4 V, ~: h- z1 clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. d. K O4 ?4 S% w5 s
' ?. h$ t) }2 J, M0 |5 t6 D' S/ Z" O- `- f" {" ]: C: V
get-global-proportion; O+ R# U3 a$ ?5 D! j
let trust-value: Z6 V O7 L7 Z" I8 `3 E: [8 y
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)
, T0 _/ K5 m. J1 xif(trust-value > trade-trust-value)
$ Z o# l; k0 Y5 `+ j( k5 x[set trust-ok true]
: y$ X+ t) `4 R- Q( |' Q; U, pend$ R( F3 M3 `, Z" J) k
* m9 X- o2 q# P- w4 [# N8 ~0 [5 a( l
to get-global-proportion
" j, ~0 L: M3 H7 r/ Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
N+ w; S4 z+ B, ]2 H[set global-proportion 0]/ V8 e# T. p* J/ z5 k/ B3 P
[let i 0- i* ^% n" a4 d# }' E1 A) C0 F
let sum-money 0: Y3 p5 }. Q* w! d- O; d
while[ i < people]
* @. K h9 [' F o[. d6 J2 i* F* r3 z/ `! n
if( length (item i
' D; h# G/ V9 ^1 I2 P `( N[trade-record-all] of customer) > 3 )
1 A7 w1 j* Y" N4 N[/ u- Q- z) t/ `3 B7 j4 S
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 s+ K# i; H4 x# D; L" R8 C7 J
]2 x1 k( p' R( D: j1 o
]
+ ~: J1 I$ S9 N) C7 {: M2 ]& Klet j 0
* I! `/ A& y3 Glet note 0
$ B$ I& B" R5 ~+ H rwhile[ j < people]2 @" G1 U: f% u0 V' _9 g2 ^4 d
[
/ n8 d( S0 ]& o/ m6 @) t* N# ^1 Mif( length (item i
3 F# l$ ]7 W1 S+ }+ _/ J[trade-record-all] of customer) > 3 )
& \5 X# ^' Y/ s ][
1 T" Q6 i+ O2 ?/ o1 l0 pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
' b5 s+ R/ K2 s' N, y! u[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; F& Q. E$ r: q( X& i; @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ H+ ]& j' Y! }]* y J# O. C9 n8 `4 r' b
]; E# T8 E5 |* Q, s( j
set global-proportion note6 j/ ?# G9 M* X% H; r
]
" M% {7 ?3 ~8 \* c/ ?) E7 }end# Z& }: J+ j' [7 t8 j V
( F, d/ A9 z# \5 t! W! Xto do-trade! t5 j0 g, E5 a
;;这个过程实际上是给双方作出评价的过程
) ]! o; g! w/ Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 d8 n$ T% S- f6 {% n: O1 M) _, l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 ?% c+ D; }# |% e" ?0 V, b# Y
set trade-record-current lput(timer) trade-record-current$ r0 o9 F4 l0 T$ h9 }* M5 I
;;评价时间 [4 _, n2 {# X! \% v5 g) h/ Q
ask myself [
9 T2 N* r( d6 wupdate-local-reputation
9 G5 b* O1 V. P+ X, {6 Oset trade-record-current lput([local-reputation] of myself) trade-record-current2 _) R; F3 _* z. }* X% ]2 d% i
]
$ I8 S: J+ z, `) r# R+ dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 @. O1 S" @3 T. L5 ^;;将此次交易的记录加入到trade-record-one中
& }: x& D; E" C8 O; Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! i$ s" l [3 r$ C' ~, L7 alet note (item 2 trade-record-current )
/ Y p5 a% | b$ a/ cset trade-record-current7 _$ Q T, n& y9 S4 H0 i2 Y. K/ y" |4 Q: z
(replace-item 2 trade-record-current (item 3 trade-record-current))
; o+ L: n2 }6 n0 ] o3 ~, kset trade-record-current! e' r# L+ y& H6 o( y$ c5 t. o
(replace-item 3 trade-record-current note)9 J' A/ I! Q# o/ T1 l2 Y5 D6 F1 x5 Q! m! g
6 X% [- N( ]) C, q
. u2 i% z5 i/ U( M3 t- B" X Sask customer [$ a2 e. g: c* ?9 w
update-local-reputation" |( u( c! E, O q( {
set trade-record-current
$ k6 K2 O# R/ m# k5 X2 V+ a% s(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . y0 K' N; s3 M3 e; t
]
! A, _; s; W/ N% D
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! C2 W' F' B% n, p6 X% j# Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& Q' G. e) W7 _; V2 G
( C' V' u9 n6 L+ @
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% ~' R$ J7 E8 y;;将此次交易的记录加入到customer的trade-record-all中5 d4 T& P1 ]2 B! M; ~) E
end
; c% l* B1 W0 D* N
& Z2 f7 t! f$ ]! |8 k! p9 ]to update-local-reputation
7 o# n7 N4 P8 O- Mset [trade-record-one-len] of myself length [trade-record-one] of myself
, n# }5 K7 ~6 E( R+ l m
7 Z* P7 _; G5 n/ S$ b/ y5 j2 @
. k' d* W* t: o& p& b;;if [trade-record-one-len] of myself > 3 / v: O- Y4 ~ i2 V6 `" S
update-neighbor-total; b# B- K7 c2 p# y6 R6 W- |
;;更新邻居节点的数目,在此进行" |! K2 U$ C/ f9 O; o) A
let i 3
/ d! P5 U5 O& Z1 G/ [- o$ j. F" r, ylet sum-time 0
3 e" ^: R* {1 s% x5 U+ U `% s j: @while[i < [trade-record-one-len] of myself]3 W- C: T! ]% W. G2 B6 t
[
% b+ r" g3 d3 B/ s8 v `* Z* Tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 d. p; A& I# z ~$ Uset i
% R+ X8 y7 U& X5 a6 y( i + 1), d) ]1 Q Q) v
]
4 _$ c# M) w' s: m8 Blet j 3
/ N4 z ^! x2 H) Z) X' D( slet sum-money 0, u$ W2 e4 q* | Z
while[j < [trade-record-one-len] of myself]
5 G4 u# j: i: X3 F[
! [8 c7 q# y8 Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
( S; U/ m' n( ?9 D) t: ]set j; ^" I/ c [7 e3 ?6 m8 D; [
( j + 1)
0 \/ P8 Z' j! ]1 V7 v: `0 ~7 D]
% h8 d: A+ H* i! P0 T& x N, ylet k 3
8 J4 ?" S) `+ e0 ~9 Elet power 0. A( n& h# u" a) \: O A* F
let local 04 A; u2 y' P0 E+ O; K" O
while [k <[trade-record-one-len] of myself]1 @; ]! @* M# ?! g
[$ O* { [7 X! B6 F
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) R) t& S8 n6 i) Q
set k (k + 1)( ^3 g* A ~& q# s1 \- q
]
7 z+ N6 w; y7 vset [local-reputation] of myself (local)1 ~0 D- _) a3 y) b' q" O* D. w
end
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to update-neighbor-total
8 I& y1 m1 V3 g+ u, {
$ W" z+ ~, I8 |) d. jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ s" s( b. B q& h5 G
6 u5 I6 j7 e9 l ^+ q# [2 h
3 E: p9 c: d# {4 i) V5 Hend
) z% h+ m! n4 X/ n/ h; F k L; Z& A5 X
' P6 y9 F! X# N; p& C" S0 _+ {9 qto update-credibility-ijl
. I7 }; ?4 X/ }8 Y! b: [+ a
) O- ~4 k! O* n;;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。
Y. k: {. Q9 l+ elet l 0: H! w+ `( H4 {9 A
while[ l < people ]" Z1 ~5 R7 L! [0 [2 s
;;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6 J9 X. N6 ?+ D* ]# C
[$ `5 d/ {7 O, @
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
O. Q; T( P N: @8 W; J) R- gif (trade-record-one-j-l-len > 3)& W( T1 J$ `2 \8 M* S' `
[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' ], N. A4 p) m3 N/ D: ?" O
let i 3: P) l0 g/ A3 ?2 s# \/ I
let sum-time 0( U0 z$ M7 \( `* @
while[i < trade-record-one-len]1 |7 x' u, P' a7 y" ?2 G L
[
& \. z2 u0 _9 xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& I8 d- i# x5 Z1 A9 @3 h9 Y
set i: S4 m& s( b" d, U3 `; O( u
( i + 1)8 b9 d5 \5 ?! z0 I, q. d
]5 y C/ k, A) `* Y0 S; a6 {# Q* o
let credibility-i-j-l 0+ M5 B G1 a$ _" x
;;i评价(j对jl的评价)) V3 k- I- U) L" W4 R9 J. ]
let j 3
; v' @9 t4 _0 i" `5 zlet k 4
! S& ~6 G0 G' `$ ~: z5 k$ d/ [3 h$ xwhile[j < trade-record-one-len]
2 _. R/ r0 T& w" } L[
7 R9 M6 F. n$ _9 f' `while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
/ V6 `4 {# G5 ^4 uset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)
% S2 @7 e( W4 D3 {set j; \% R: S9 E/ v) O6 `
( j + 1)
8 t5 V9 D' T- e0 d; T]
+ [ |6 l- e2 v) ^( O- \4 Kset [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
6 ~/ T1 @" n6 g! P! G* z* `2 a" Y0 l
, ~# R/ Z0 S% e0 n9 Qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* i1 [: D$ w7 I3 i) J;;及时更新i对l的评价质量的评价
, P6 n3 Q5 f4 X8 _2 kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 j( v' ~* m: f
set l (l + 1)
* `. ?0 G; X) \9 r3 K. v2 `: b9 e]
" ?5 x. y& v4 T: W0 U3 p' [end# Z x" T- B- g o: U' L. @& J" [
! C* _% o( G7 Sto update-credibility-list
% e) [" ~4 V+ O% s/ blet i 06 s! r" O# C6 _- s) M+ L
while[i < people]4 q( [) r) d; s+ L( W4 X0 ~- k8 s
[
) k5 ^& \) }. i1 T& _" ^let j 04 ?8 U n, i1 G# S; V/ d# \
let note 0) t; m- F$ o" r5 H
let k 0
" M6 J6 \8 ]; L* U4 h3 y4 Y;;计作出过评价的邻居节点的数目5 s/ G0 Y* m" J2 h
while[j < people]. D$ J' X j2 `* C" ?' B# l) I
[" r1 N7 n' V R6 Y) D" X
if (item j( [credibility] of turtle (i + 1)) != -1); e4 @! l5 u) M& x* M1 K+ u
;;判断是否给本turtle的评价质量做出过评价的节点
" }5 g @3 K5 g& T( B: k[set note (note + item j ([credibility]of turtle (i + 1)))
1 Y4 Q2 n8 q, V;;*(exp (-(people - 2)))/(people - 2))]6 O/ Q {0 P" g0 H
set k (k + 1)
3 @' k* U& r+ R5 P]6 N2 v! B7 K9 N; j: x5 |$ m
set j (j + 1)
6 p" H P! A* U) B C N) n]9 g! v. G" Q1 v2 H5 n
set note (note *(exp (- (1 / k)))/ k)
. r4 |2 y( B5 Y- N, _8 d; G# o* xset credibility-list (replace-item i credibility-list note)
# e& d! k& B" Lset i (i + 1)8 b( r" j0 F7 h# D+ O- f, y
]9 Y; m( `+ V* k% l" y
end0 B4 A% e) [# A4 Q ? y1 n
4 e5 ~5 z6 S, _! V
to update-global-reputation-list K9 I7 U6 s, M, G1 O. o C* w" D9 C
let j 0# t' N7 J. {6 Z& u
while[j < people]- k& `# Y( R3 j3 }3 n! X
[) K; b8 K5 j1 W, ?0 w" r) P- y
let new 0/ r" d) ^: f" y+ L9 X: t' p6 l0 E
;;暂存新的一个全局声誉7 e; e; c7 h# o* z8 Q
let i 0
+ B5 m% k, Z) Nlet sum-money 0
' l; t6 r8 _6 [* `# Dlet credibility-money 06 m& R0 w2 L. g$ ]' T
while [i < people]
; ^& `0 H, Y& ^2 W. r[
4 b/ t8 U; a7 X p' K" uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 W% G- W/ h* @( U3 r
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 t( f0 q3 @. l6 G
set i (i + 1)( Y+ u L% r* i
]/ W; Y1 q0 _; X$ d
let k 0- {4 d& b# S5 ~$ h6 r! Q2 O
let new1 00 z4 m, w8 e5 [
while [k < people]+ M2 _; ]/ M; [ M) Z
[
# _% u4 v! L2 ]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); Y3 ]' Y5 P' K1 ?
set k (k + 1)/ q* V l8 d0 t# e8 C% ^0 G
]8 J* I/ }- y* D; [
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " q4 o1 q, F! t- x' {
set global-reputation-list (replace-item j global-reputation-list new)
' J. \- s. J& a$ @% Zset j (j + 1)% E g/ I% V- o3 t! Z- A8 e5 `
]
' G8 _8 d0 ?" b- ~end2 e! g3 F' e2 c/ T4 t
0 k. C$ f: B# m+ o
9 F7 N+ h8 `0 C1 z5 B% h# P( y- P
; H9 N) U' Y, G& X* {( v. a4 S: Wto get-color
3 g* C" |6 @# D- K- c; A; J1 U' C( o- y: R2 Q& f* v
set color blue! b8 W! C! i# Q; S
end
- a# }" ]/ F# X5 |( \( O1 `
& G7 N; B y/ v Hto poll-class
. Z* W" C, `8 X3 j3 P! q0 Mend( [; B: h* f- ~$ C% l
: C1 _3 A9 [. F6 jto setup-plot1
, d5 ]* M4 z* W j! ^% l; E* P
set-current-plot "Trends-of-Local-reputation"9 w+ x* H6 s# T& D
' e) Z& c/ K1 [6 Zset-plot-x-range 0 xmax
' N+ i/ Y: B. U4 U
W3 e% B9 l. c2 ^& f8 b2 t- ^set-plot-y-range 0.0 ymax A5 i% M& c {6 j5 m s9 N- ]! V
end7 J/ ?' I) o+ W# C
1 }+ R3 o. e& Xto setup-plot2
& O+ J: ?1 I/ c m( V' `$ a; ]' l! p9 x1 ^; r v
set-current-plot "Trends-of-global-reputation"
; u4 T* a2 L, V3 j. t" x
1 ~1 ] i0 H) d3 G8 ?set-plot-x-range 0 xmax
8 e2 @7 Z/ N( J
; \: k% ?, B" Wset-plot-y-range 0.0 ymax8 W u7 w" {6 ]5 {
end. A# J8 Y2 }0 F* }
, Y6 f9 O& F1 w
to setup-plot3
0 [$ |2 Q1 }" d* H) @0 c( q
, N0 ^& M: I/ b# x1 ?9 o1 ^3 `* S& _set-current-plot "Trends-of-credibility"
+ @' C1 n# U& F
) u5 B# v% T' |set-plot-x-range 0 xmax
# s2 p% ^* s: _1 L5 p# V- d. }9 r. t1 e5 Q& j
set-plot-y-range 0.0 ymax" s4 ?; X, P$ g" @ a7 A
end
5 P' i. \2 `2 N. [9 N# Q/ |6 ~$ F6 ]3 ~" A
to do-plots
5 ^3 O! i0 g. ?. B# `- d5 `5 aset-current-plot "Trends-of-Local-reputation"
1 g( h* s8 k9 m9 [: Jset-current-plot-pen "Honest service"5 g; T2 M1 V$ s1 t3 G
end
$ V1 G3 j9 c0 |+ B9 Z2 m# z4 s9 R& X2 x5 A; V# ~0 a
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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