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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7 Y! m3 u4 n; s9 L/ @$ y2 Q6 v
globals[
8 [- K" [" c2 o" G1 t6 Mxmax* I6 s7 Z. q* ^! Q1 u0 M& a5 ~
ymax
. I: y2 C8 ?1 k2 Kglobal-reputation-list
- v/ Q5 S% n- c) _ e$ s3 W9 k/ s: {; p( T0 T8 J. t
;;每一个turtle的全局声誉都存在此LIST中: D; l; J) t9 i8 E) I F
credibility-list
6 k! z! ]5 R" F;;每一个turtle的评价可信度
2 C: p# Z; m. z( D! Z: ^, h; Dhonest-service- g% `& J8 k- y, `2 B
unhonest-service0 h; q0 [$ P8 W% t. \
oscillation0 Q0 G u* L. B* L3 k: k
rand-dynamic
7 m7 H8 [ c+ e# r0 P]
M9 N$ j! h# G0 F
! }% B" |$ t: ]! Pturtles-own[' M m5 s# x& j+ U
trade-record-all
S4 H! C' d1 s: M;;a list of lists,由trade-record-one组成
1 B! O# v& @7 a$ R: p9 jtrade-record-one
$ x) N' V9 J3 C! Y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% |+ t" w- V* J
# n8 {' [6 h% p8 j; D, Z7 P+ I
;;[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]]
4 m& Z' T5 f4 m# b3 A8 {4 H# Vtrade-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]- s+ ~- Z" r! l) }0 p
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
5 k; e5 y" T( F+ b) nneighbor-total3 Q- c# j" J: [% Y9 |$ Q
;;记录该turtle的邻居节点的数目9 S* d5 T0 _, z# T+ F2 C
trade-time
5 w% ]2 u2 V5 e) Z;;当前发生交易的turtle的交易时间2 M9 [0 u3 c$ z' u3 B. b
appraise-give3 p# H, Y2 b1 l; {9 p& X: j$ C
;;当前发生交易时给出的评价
4 n: ~4 w$ D6 ]appraise-receive
5 G% W' Y8 a( m;;当前发生交易时收到的评价/ o. k7 O& V# G6 S N
appraise-time3 @+ r3 x& `2 I
;;当前发生交易时的评价时间
- b+ ~1 y- }! q6 Slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
* c9 z; Y6 ]1 J5 @- X: z: Etrade-times-total
# d! }' n$ B* q3 v1 s7 h;;与当前turtle的交易总次数) `2 t9 H/ J4 q2 f
trade-money-total
- S6 E5 Y0 T% q, t;;与当前turtle的交易总金额
7 s7 U0 d4 ~ {9 W9 ~local-reputation. e* U. p- G$ \9 o7 u* @ U
global-reputation
& Q, c( C2 {" h$ C4 v9 N/ icredibility
3 A3 q, W( Q; u5 ^, U;;评价可信度,每次交易后都需要更新
+ |, y7 r! w; R* Ccredibility-all7 v* h* M5 e+ B. }. n# M( }9 {' U* x
;;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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+ ^2 N$ W4 p# F3 ~4 @: B9 h3 ];;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
# a/ b- O0 _9 o6 |credibility-one
$ r0 }5 I) w5 ^, S! s" 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
: [6 \$ g9 I; `, p7 ^- }global-proportion+ q; i, x% M6 B, U2 o S+ u
customer
0 g2 f7 O0 X0 Z2 Mcustomer-no e% J3 I* }. F4 q6 ?
trust-ok4 ?2 C' Y6 Q* c9 r( w" Q- P, ~- C" V! O
trade-record-one-len;;trade-record-one的长度
* X1 E3 T, L" V% v" q" Z- y7 T]2 f. C0 X( B/ H8 ~4 \( |1 @
9 ?. \- q* K+ r. c/ i: S;;setup procedure# a$ d; f$ Q) N. ^$ J* z/ \' b
9 J4 m6 o: t* D) dto setup
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# B4 F' X8 s( | S7 @+ \ca4 M/ N' Z2 X0 h$ ~% j
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initialize-settings+ r" G! Q' ? ~6 r) ?$ X( D
1 f ?2 J5 b+ Hcrt people [setup-turtles]6 _$ a& _) ~2 O, J$ ^8 R# V
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reset-timer0 C3 H0 x- S* I5 Z8 X
( F: K5 W/ g& g8 }
poll-class
( f% w" x3 u/ B, k4 M: Y' f! J
- ], J4 D- Z/ lsetup-plots, b X! |2 [" S( @
7 r6 E' F, P$ c. `4 v3 F
do-plots
& I8 H# A0 ]: `0 A, z9 Zend
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to initialize-settings) o5 k0 P/ M" K2 b$ f$ n+ f" d
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set global-reputation-list []
# o, B( N( f+ V3 O) b& [
. V9 C5 Q8 J" Sset credibility-list n-values people [0.5]
3 t: F5 ]. B4 T A+ X
& K. h9 f% x9 N+ M' {set honest-service 0
$ N8 S8 I8 `9 t/ T% t C0 _% s L, i& J- P( ^- |) K; D& e
set unhonest-service 0. w0 T7 V& u4 G
% {3 f! R, A K9 Y; k8 _
set oscillation 0 W; P2 ]) \3 a4 q. b
- J( C) M( _: F& I3 z+ Y& G+ Y
set rand-dynamic 00 \+ _# w, ]4 z1 ~3 n# a
end; X' z# {8 x/ g6 g9 W g: |
9 c. G# f1 \. p* h C) T$ J
to setup-turtles
6 T/ P4 P: z) O4 a, Z4 t5 T+ I2 Pset shape "person"
1 ^4 f! h- Z$ J1 Q7 tsetxy random-xcor random-ycor
6 s* A+ h' z- H3 ^set trade-record-one []: h* d4 ?: s3 z3 \
5 Y( `' E2 n5 S% G3 d2 A4 q$ }
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 H8 D, d* ?( Q: `3 b5 I
' X2 o8 {0 F$ I( ^- F" n" b9 B
set trade-record-current []
7 ~" q9 {0 Y% b2 Rset credibility-receive []/ e4 e7 {* J( v' Q& s% x
set local-reputation 0.5
9 y6 `' Y) |' V9 Z: Mset neighbor-total 0" E) b8 l y$ k* g
set trade-times-total 0
" r: u( K% d/ z/ |set trade-money-total 0
% A6 B7 N1 ^/ z- V/ T( O$ nset customer nobody
0 D3 o% C8 v- [- C4 lset credibility-all n-values people [creat-credibility]2 X" q h9 F& V+ N* p& K/ d
set credibility n-values people [-1]2 R- i. Y2 I* ^2 U
get-color
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end* g ^2 ~1 ~: d3 X, _
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to-report creat-credibility
- `, i+ V4 L! q& T; |report n-values people [0.5]' H$ W( m$ O5 z) ^) P) }
end7 k! F& g+ I8 o) E, P2 p0 C
) u J* b% n' m- Zto setup-plots* o% z! i0 e) n! ~
" z e& z. u7 J. A$ v3 ~
set xmax 30; T; O4 C1 V: {
, b6 P6 a9 U2 t" ?
set ymax 1.0
0 D' O0 B+ k+ n( o" I4 y
- l8 |1 F0 c5 N* c; l8 Pclear-all-plots
- {5 c& n0 F7 R7 R4 o3 C0 S% f. k
setup-plot1
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setup-plot2! E2 L# \$ A& a2 R* w) a D) n
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setup-plot3% c' p) L) W, W% R( X
end
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;;run time procedures
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to go
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ask turtles [do-business]2 T* w- Y1 l/ d5 C% H& y
end. D0 A$ d) \7 T, ?! e
" ]+ v/ q3 p3 H. E7 Hto do-business 3 _' f' [, m: t" u$ @
5 Q% W% y! V. k/ P. v
) }6 I5 a$ K1 B/ r) q. `$ O2 @rt random 360 |4 _) m& }( E! o0 V
" Z6 K) e% H+ G w' c. [
fd 1* @! T* p* z; a9 x0 ~$ s( p% d
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ifelse(other turtles-here != nobody)[ e8 b9 y, v7 b/ @& J9 t2 P
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set customer one-of other turtles-here' ?( b* e* D' H& q" o0 M1 V
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;; set [customer] of customer myself
8 `# b+ D) |# u. @* |4 u3 t
) w5 `' J+ J3 }! x4 [set [trade-record-one] of self item (([who] of customer) - 1)* W9 \6 D5 Y$ |* q w, _) A2 b
[trade-record-all]of self
! u `& X* G3 Z3 d9 I/ J;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, b: r8 l- x- H. W' t4 F" ~
& @0 s( f% W. Yset [trade-record-one] of customer item (([who] of self) - 1)
* J) N/ ]4 v. a. g[trade-record-all]of customer
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( P6 a! H+ g" e. J |set [trade-record-one-len] of self length [trade-record-one] of self
# @- r$ f' V! l/ J# d
+ J- J; g8 }; c+ R# kset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
1 o2 O, ~9 n. O- |% b/ S;;先求i对j的信任度! ?9 a O7 |/ t1 G' g7 i% t E
2 [# ^" H0 E# a5 e
if ([trust-ok] of self)
0 r6 b* D; k# c7 a: {+ I3 K;;根据i对j的信任度来决定是否与j进行交易[* o I0 b8 y) \: {: O+ f" i/ t
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 \, c+ |- n+ q: |
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[
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do-trade
$ S. b$ B3 U: c6 i2 A- q5 J$ P5 ^% a8 T5 k
update-credibility-ijl2 X- p6 }+ J2 {! I0 L: j
- x7 C& u1 n9 c& J
update-credibility-list
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4 a6 N5 s& h( U
update-global-reputation-list4 r7 J2 |5 i9 c: N8 ]
. Y$ G/ e3 S9 J# e/ Qpoll-class
$ I: L \& h C1 k" \
9 H4 B+ ` @' H, x, Mget-color3 Z) J( e: N% s5 c, Q" v) @
; Y% V% {9 h: s9 X$ v]]" |* f% j8 J2 E! ?' h
6 ?9 p5 @2 M0 ?+ H;;如果所得的信任度满足条件,则进行交易4 ^: ? J% t7 h, b5 a {
! X, V k/ }. x[+ a5 l1 t/ p* l# e3 w
1 j5 r( S: l* Crt random 360
7 U4 J' }- x2 r4 `! b! P' x
9 L, j% _9 ~% n# n6 R/ N( b* afd 1
) D4 N; u/ V6 ~0 [% {$ j( S0 z' u( T- L0 x% |1 r
], O' R9 {4 \3 I/ r9 \
# r) i. q6 |" J3 N$ g4 k. u4 g9 i
end9 ` J. Z- r1 n6 \; A% o
! u, l2 `$ m& [0 F: yto do-trust
t! Y7 C8 F" {set trust-ok False4 I$ E! I8 j" }& ]/ N% W9 B
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+ z, l+ Z; s4 [1 y
let max-trade-times 0
, I3 Y, Y* B* t3 P1 }# M; m( }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# ?, b2 G6 }; o5 r: W, Q& [: i* ulet max-trade-money 0
3 R! b( i+ M/ n& W2 }2 Yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& k. f0 a' x! ?# @let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 o: _4 g5 x8 H1 w) Z5 ~- `8 }
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8 [- s r) }: V$ Q3 W# U7 Y
get-global-proportion* R5 k' q/ O( l, Z
let trust-value5 ~0 O3 n7 b- |! L* o: I0 U
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)/ m0 Y) ~4 ^8 ~5 ]
if(trust-value > trade-trust-value)
6 v2 u2 g5 z [# S e1 }. Q[set trust-ok true]9 q4 E; G C/ R3 t$ \3 X
end7 c0 H2 \+ D4 } D# r2 j# ?, T
7 V# C+ {9 s3 eto get-global-proportion
+ q2 Z; s Q+ G# ~, a. vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ ?3 h* q( q4 c% V[set global-proportion 0]7 b/ k# X* q' V. O
[let i 0
' w9 B! o' G) v- m+ ilet sum-money 0- k" h' R0 m P, m
while[ i < people]
r$ j1 x! \# ?: @[0 z2 J9 n/ F' \) i8 ]+ j3 |
if( length (item i
0 f7 A) a3 a, K9 K2 t/ |1 L! L* Z[trade-record-all] of customer) > 3 )
# c- Z4 C6 t1 @* E[2 S: c# I( @ X1 I; I, L7 z/ @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))- C4 |0 ^/ o6 h/ R& z+ n
]
) ^8 S; D: P. j2 y, o; x]6 Z1 B2 a& s# I* h8 A
let j 0
% z; [5 G: `, |/ M6 x% Llet note 06 y0 p$ w. R' U g$ X" S
while[ j < people]
8 L. x6 ~7 {; t[
9 C7 t" i4 a5 {' Bif( length (item i
- D$ b c/ X. h( f4 |[trade-record-all] of customer) > 3 )7 G1 r# y. v# `" S0 _/ h
[' I I/ {3 T s: w
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 T$ I5 P' o0 w6 s+ f[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. T$ N# m& @, f! b0 {5 p7 i+ s6 ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 _- j( A! Q' I; z. @]1 S# b) a z/ T9 d4 D: z1 ^
], s% i: I8 n9 K* z ~
set global-proportion note
: Z7 U: Z, P1 N/ k& N" T]
. s) r4 W4 A4 A, J% w2 Y$ B1 p1 ?) uend
7 ?9 j+ e; w4 W4 C. S3 i; F. D# b8 f1 G" u; K
to do-trade
/ s# S7 x* B8 V" M# q0 T;;这个过程实际上是给双方作出评价的过程$ x, D& d* a7 ?2 T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- _2 Y4 x5 b& J4 W. a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% S) S7 H8 \3 W" I+ i. g0 ~ fset trade-record-current lput(timer) trade-record-current, r% H. n# D; e) ?: }5 ~+ ]
;;评价时间- Q8 @" t( N3 r. [2 E2 |- k
ask myself [
3 T3 c N4 Y% x; L& X2 G0 ]1 Hupdate-local-reputation* p1 n) G2 f; e/ s% k2 _+ V N
set trade-record-current lput([local-reputation] of myself) trade-record-current
2 R: E0 H* H9 l0 j) t/ M]
3 F5 E; ^* a6 U- i2 |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; u- W1 |' r8 e1 ^: h6 F
;;将此次交易的记录加入到trade-record-one中8 L0 z) z( b8 @! m( l5 b, h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 D$ j7 z$ @( O) z7 ^2 j. O3 m3 j) blet note (item 2 trade-record-current )' T: ^+ h7 I5 ~' D9 D4 W
set trade-record-current
9 N }1 Q- ?- }$ @9 p(replace-item 2 trade-record-current (item 3 trade-record-current))
' o4 H" J7 ?4 L1 L& G5 Dset trade-record-current
/ p! g( N% O ^9 X: d4 K. f9 S# b(replace-item 3 trade-record-current note)
7 J, m; h& r! U) J% }8 t1 F( ?9 ~& l) j: T
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ask customer [
7 V/ V1 }& [) R B. v1 o9 G$ hupdate-local-reputation
J& _4 Y( K4 s6 }set trade-record-current
5 D! A4 c K& q k7 w(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 ?1 X0 J( J7 g, b2 b# v* k0 D/ H( z6 D
]
% N+ `2 l- x5 Z, |% G( b* w. A( l0 C. ]! q) U# L$ N/ U/ k
, _) h+ S; L9 q4 Q4 {9 i7 g+ \set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ e" p8 j, i+ ^/ Q- z+ Y6 A7 h
1 k* R! h" M. Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# v7 i9 a3 \1 D- e& ?;;将此次交易的记录加入到customer的trade-record-all中0 A2 X7 |) A, U! L; }( D$ x: P
end; l# t- O/ b& x
) R5 ]9 f8 Q5 b1 yto update-local-reputation
4 Q3 j7 {2 U4 c4 W9 I$ d" Iset [trade-record-one-len] of myself length [trade-record-one] of myself
6 `1 k" f1 E0 z# Y/ H8 o
. L! E2 P+ I# c* `% Z X* ]3 q$ _/ X" o
;;if [trade-record-one-len] of myself > 3
& Z/ _5 ^4 [7 u" z8 ?update-neighbor-total$ m9 Q- ^- }. ~9 {$ D1 V
;;更新邻居节点的数目,在此进行* r4 j! E0 e2 P: H. z- \' d
let i 36 s! g0 E1 R* Q5 E# K0 `
let sum-time 0
, \/ u% K8 _9 K; y( i: z: I X* p: Hwhile[i < [trade-record-one-len] of myself]
1 Q' Q8 D: `6 K1 j) w9 _2 q6 Q# c[" f; I8 h& C/ V' S% r: }. V
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ W8 g6 F# y$ s# Q5 Iset i: i" |+ j* ]4 Y; S0 q! M3 B/ m
( i + 1)" V% T, v+ ?& M
]+ o; ^) N! d% n
let j 3) p: R. U7 s+ \8 l! Q" l
let sum-money 03 @( q2 m5 {# v" A- [
while[j < [trade-record-one-len] of myself]6 h$ A" G. a/ i
[6 K+ [2 d" z! c' m. k" h
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)
% q. k( n8 T/ [, G, ^2 C0 |set j1 u. F! c+ O+ G6 I! f2 p
( j + 1)1 b3 U# ^8 k3 m- H x9 W
]
- ^" v$ r) {) R7 _let k 3
) H0 }7 v2 b) i# @let power 0
" M# |# a+ i" S! p: | y3 Elet local 0
* n# [( z- w3 _- B hwhile [k <[trade-record-one-len] of myself]
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+ h! A% H$ t0 |# g3 w$ Wset 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) / I: ~; L3 Y% w- q7 U( b# ]+ K
set k (k + 1)3 Q7 I) q/ B0 k. z- F2 v
]
5 W' d. ^5 V/ H7 Gset [local-reputation] of myself (local) n( G8 z" f& w# |
end
* |7 v$ ]& [& u% H- T% B5 e* x. N4 H# P7 j) f
to update-neighbor-total4 d3 D# F+ i- ~9 p& {( A
7 V; S+ r8 p6 Sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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9 U9 j7 I; n' x, W2 hend
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& _9 l* s% Z4 c9 f Bto update-credibility-ijl 4 f Q) N- r- F2 r9 Y" w
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;;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。5 `% i: P9 Q$ L/ X0 Z0 v: B
let l 04 h9 ]/ Z* D) S, X* {2 ^
while[ l < people ]" x" }4 ^, s* ~, D
;;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
7 L4 q1 q, H. Z3 P1 y+ g6 ?[
6 S5 f3 }. L* i, F0 R! J! T; i, ~. Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ Z7 s& {' y7 X: z& t
if (trade-record-one-j-l-len > 3)& g7 f9 w8 K4 S+ U. K3 }
[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- j, s+ D5 q! m) M- i6 n
let i 3' h! h$ e9 N% P0 r
let sum-time 03 G& V( }* p; ]) `7 S4 l
while[i < trade-record-one-len]
- N. S! M' a* b6 n" y. [* R[
+ ~: }7 j; M$ R l7 u. D \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 X2 a$ E4 d/ i( N' G- fset i
0 B* }) ?8 z; ?2 u' }, E+ h( i + 1)
2 G/ S. H2 v7 s( _6 U1 p+ K5 ?]$ B: w& U) C3 d: q
let credibility-i-j-l 0& d, r4 |6 h! U- y+ }4 n' R
;;i评价(j对jl的评价)6 `. @0 K( ~! Y5 O. x
let j 32 F% |/ s5 B( A x8 ~, \: q1 o
let k 4: s% _( B5 l# A
while[j < trade-record-one-len]8 d& G3 R! c5 Q
[. n2 c- U1 h4 `
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
: N- E0 q k) V* C, h3 k+ j; \% p# Rset 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)
8 D3 @8 Y0 @& V4 [0 m9 Hset j
$ R3 [# n- a0 I1 v3 W( j + 1); }# a' y* ^! x" H( f
]! F b. q# y. V- k* a
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 ))
* |/ l2 t5 S. _2 T# y+ }9 ]" h6 G# h, d6 b, V% W/ J
$ i4 S3 e( u; Y: H8 D
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! Q' ^: L+ V+ v! o* h( J
;;及时更新i对l的评价质量的评价
$ G* {1 G) o& Q# D: m% F( d, E2 Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ k0 C6 j8 S2 x* Tset l (l + 1)5 } t# k8 y. K |! ~" o h
]
3 T8 E, C/ I5 D4 dend
0 l9 `. j7 _ x! }
) n: j# ~6 R3 q, K5 A0 T' D \6 `' U! _to update-credibility-list+ f0 A7 s" t: ]9 _, X& T4 ?9 @
let i 0$ X+ s- k/ C X3 H, R* {
while[i < people]
6 M: ^# U0 N& }1 }3 t[& l" B/ b3 t: y [9 d6 E. K5 E9 Q" u. m
let j 0
0 Z% y7 m/ Q" }: ?. Zlet note 0
+ w) i$ Z: x- G0 L( Z o3 O: J8 `6 Elet k 00 ~0 [4 O [& [. H
;;计作出过评价的邻居节点的数目+ l, B/ h! B1 l
while[j < people]9 a& P* o5 p1 K. ~0 F! x/ m. _; r
[
# F) c; d; ]3 X9 T% yif (item j( [credibility] of turtle (i + 1)) != -1)
9 Y+ [! c1 k+ ?" y/ o;;判断是否给本turtle的评价质量做出过评价的节点9 p! H3 l e- \
[set note (note + item j ([credibility]of turtle (i + 1)))
$ L. k% d% V# P7 N; f2 C;;*(exp (-(people - 2)))/(people - 2))]+ |6 O& N M) K8 [' r1 X
set k (k + 1)
) O9 \# S+ R( I! t0 }+ t]" V7 }" H, n2 F, R' h
set j (j + 1)
' _% ^' ^2 ]0 _, B/ w3 g]5 T, d% [1 r& f+ m, w3 |/ e" o1 s+ E
set note (note *(exp (- (1 / k)))/ k)9 U9 q" ]3 y- I
set credibility-list (replace-item i credibility-list note)1 @: z7 m6 N ?$ a3 _! d+ l# G
set i (i + 1)
: v! K4 P) K( S4 v- Q g) Z]6 @3 J4 M; n. t* h
end
5 ]1 D- [! |. K# W
2 S e. s- {; v$ ~: r4 H) C. \# C! hto update-global-reputation-list
" w( Y7 l2 |( G# z Z8 K, Nlet j 0
8 c& Y5 l# g; t8 b4 {# |( twhile[j < people]
$ T. _7 z2 W) ^$ D5 v[
0 Y. `8 ` v4 u5 ]+ L6 p; Ilet new 0
+ ~/ b N5 e P' j;;暂存新的一个全局声誉
8 n; i3 X& }( @1 a! L9 l5 F0 y( Flet i 0
9 N7 D3 n# v. C a8 p wlet sum-money 0
- O# W, f. J9 l1 ~( A% llet credibility-money 0. V2 B' _/ O H* t7 ~
while [i < people]' R# [ l( a v& Q) G7 u7 F
[- C+ \8 a# @! }: |! I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 [) m# j% p7 P4 E
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# X ~ U/ S* s& `9 i3 Q' P Zset i (i + 1)# w! J8 G# @$ b/ d
]
* @. w$ N1 m2 |6 T+ w; m( x; \let k 03 h+ I9 {, \: U
let new1 0
# Y4 J3 t# r1 N8 ?% ]- `! ]3 ^- kwhile [k < people]
3 A6 g2 }" N0 ^6 Q( c. u[
( n6 O* G. V; E. \$ x9 N: x5 yset 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)
. B4 u# O5 {- ]5 ~3 W7 @/ a# Tset k (k + 1)
* ]5 y4 q1 D3 h) j5 s]2 Z; S# L' N% k6 h! x5 J) d7 Y, r
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 @9 P; a/ A& y0 p6 y7 {& ^set global-reputation-list (replace-item j global-reputation-list new)$ W& I, q- ]" R7 K- H+ n1 @3 q
set j (j + 1). j, q3 w! x+ \1 ^, O* W: i. ?9 u
]
0 o" C, {6 Z; ^8 {end* ?5 }! M# i; e, N# x( B
" @; W; `; M! z& l3 ~7 K9 M
! T9 Q% H$ c3 O# ~; x+ Q! L8 L# q6 k3 O D1 A3 N# c
to get-color- I: x# J h7 O Z- I3 k
% Z& ?: }! `) y/ oset color blue# m: z1 \( F+ G2 i) L; n
end8 x1 H+ M2 L% j; @
. Y2 }- ~ g! A0 ?% R* b4 R
to poll-class( {5 {, K' i4 v$ z* Z1 `
end
3 P& K! X0 U! M1 a( f2 E; {! G% ~8 @9 A6 G: V% ]
to setup-plot17 ^1 z$ n- V" Q1 m# E
( b" [& L7 k; y2 g9 q
set-current-plot "Trends-of-Local-reputation". q4 }) ?7 v+ v2 l9 H4 g0 g4 s+ _
& P& J) F" ~( C2 c) y
set-plot-x-range 0 xmax0 p5 z9 S& ] C
$ C/ r1 }, k1 v3 U' xset-plot-y-range 0.0 ymax
9 y: c0 u5 z& Z% j. K0 V7 T Gend
5 a0 {, c4 E! l% O% K8 o2 e( L+ X; T
to setup-plot2& D T' F ]8 Z
; ]# M4 }' v n& @( W5 Iset-current-plot "Trends-of-global-reputation"
H. y$ a- V5 S9 D" c p5 g$ x& Z& k" _6 n0 k7 o
set-plot-x-range 0 xmax
" U& o0 k$ j! W3 L% g
+ A/ y: s7 y- x0 ] Oset-plot-y-range 0.0 ymax
* V5 K: e9 L+ d' L" ]/ [% k6 \end
' E$ W4 G4 G/ t2 Z: v& M
/ j0 C4 h* n6 I/ p) U7 Q& j: kto setup-plot3
# T; P# d+ c& p" H2 A+ t1 a/ e/ S9 Q! J
9 A& F6 c+ g2 a0 Z8 vset-current-plot "Trends-of-credibility"; t3 }# x$ t$ E7 P
4 T: g; z5 P( Y: {0 B; j/ r/ Kset-plot-x-range 0 xmax0 G& s6 H B# C; B6 c
; Z$ R+ X: ~& o: [/ Z/ z) E$ d
set-plot-y-range 0.0 ymax: W( S9 Q. e3 N% V; `6 e
end
$ W7 f1 @1 I+ G7 U9 C, k# T6 U6 ~( T1 j! D* h0 ~
to do-plots4 f7 Y0 s9 I( L3 Y3 w# v( l
set-current-plot "Trends-of-Local-reputation". s" V0 t0 D( w% t, E. F
set-current-plot-pen "Honest service"
5 I2 Z1 v: k' }1 v9 P& n3 I; v8 mend
( M6 x7 ?" V% w6 c
$ l4 t6 f, J3 E$ A[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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