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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' ?! P! z' d6 C. p, b
globals[
, P4 U8 F4 a9 s: ]( xxmax- }; `# F! W3 A: S/ H
ymax5 d; @) G' V+ m' D2 y% Q3 ?1 Q
global-reputation-list
4 G( h2 m' e$ m5 r! r
: g3 a. @ c1 F4 ?# \& ?;;每一个turtle的全局声誉都存在此LIST中
# P( S. Q. Y2 V: x- E' gcredibility-list2 d' n0 n1 a* O3 H2 l
;;每一个turtle的评价可信度" e' U U9 \0 ~: v- D
honest-service y( i, v J& `$ a
unhonest-service3 f1 V6 B% J. h. N0 W
oscillation2 C: B4 ? I4 ` Q: ~
rand-dynamic
7 ]' L$ u* a8 u& g]6 J$ E* \9 K& a9 j# `5 `
: n* B3 Z+ p) X
turtles-own[5 k& f' I# H9 v. @, B8 N. _3 l
trade-record-all8 Z3 a3 ]4 p8 M) d. P
;;a list of lists,由trade-record-one组成- q5 x0 N% y! }' u# T7 P
trade-record-one
* h# t) O7 r3 e1 C0 |& v0 K! e; 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0 C# M, \2 [* y# b+ `7 w
, \' a9 f2 q# |6 x: Z9 f) v" c
;;[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]]: S5 C W) c! l
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], L: s/ o/ n7 g. H& R. 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list5 D" h4 n! R- P' g) u
neighbor-total* R; \" `; o/ P6 Q! d5 c8 s% V( @
;;记录该turtle的邻居节点的数目
& {7 y& O; Y# qtrade-time
: r. H0 O) [! J! T4 k/ H;;当前发生交易的turtle的交易时间8 u! O# M; O2 Z0 x. Z( C9 ^# K
appraise-give8 P' \. I4 o+ i# @4 ]8 B
;;当前发生交易时给出的评价& b: i0 c- D9 N0 Z. g4 \. a7 I; z+ d
appraise-receive( P' e9 D z4 M: k# m
;;当前发生交易时收到的评价6 v J r3 \% o( x% [
appraise-time
: B( v8 B5 V* U+ _. I;;当前发生交易时的评价时间
( M" y4 E# q J( _local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# h W) b2 u4 Y+ _" }0 T. E2 O3 Ftrade-times-total; I6 ]/ `1 Z( ^
;;与当前turtle的交易总次数+ E# I$ m5 ~9 U4 X% G! Y- b( a
trade-money-total) Q( g9 C0 b/ ^/ ~7 n
;;与当前turtle的交易总金额3 z! F2 j7 |7 ^3 l; W' K
local-reputation
% s0 G8 L# Q2 Oglobal-reputation
' D( W0 B0 f/ D! ~' g- Tcredibility
* x6 T3 Z1 I0 L' z, Z2 i% ^;;评价可信度,每次交易后都需要更新3 r {* g1 e& T, y8 t- q' ?
credibility-all
* Y. Z- b5 V0 c( _- `) _8 c q6 W;;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; q/ h3 S7 C3 ?' Z8 m
) `5 K7 }" H/ j
;;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0.56 e5 c8 S' x& j* U9 Q* L' X" E
credibility-one
+ ^0 \# x' N; \( Q9 a5 i6 H4 W;;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2 M" R# ?" B( { t1 E7 R5 v b4 ~. W
global-proportion' @2 f* ?9 A% q5 |% }( \
customer+ e5 |1 m+ ], a4 ]1 h
customer-no+ H! t9 i6 Y. H
trust-ok
2 i6 l! Y( |) b8 xtrade-record-one-len;;trade-record-one的长度. S& { Z/ n! V) z h
]
. D5 G6 t1 V _/ Z8 f7 q+ V5 [" _& H/ V6 B6 i
;;setup procedure
8 @- T# x: b4 c3 q. B) j% c6 s% a. @, P/ c% a
to setup
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8 M% v: w, r5 f$ _" Bca' S B& R2 [! H5 _( r' W! ^
% P/ B2 T4 [ [8 {initialize-settings
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crt people [setup-turtles]
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# y5 m" F6 m5 D# A6 i% L" B6 \reset-timer
O/ N: z/ R, t! I; Z
4 M6 L2 p: D. H% ~1 H' a& f0 R2 Upoll-class/ S5 t( k" f1 Y. v7 I& m
2 K$ R- T! Y, r0 w4 P
setup-plots
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do-plots% w+ b1 R5 D0 e" }6 o
end. D3 ^8 }9 U$ I4 @6 m
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to initialize-settings
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$ E6 T5 Z7 r9 @, t( Fset global-reputation-list []6 R3 u3 u. j) G% [8 |& p
* {' N# w. Z* ?; i: ?( {
set credibility-list n-values people [0.5]- ~8 \& O* {+ o+ f4 p
- d$ J1 l4 N" G( U+ C V4 yset honest-service 0
4 @9 U. ` H, B5 d" |$ m; o# ?
0 P0 t2 {/ Z7 c! L7 R, Bset unhonest-service 0
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, w- X; W& x4 h0 [! K2 z2 u% gset oscillation 04 q" d2 E3 d- i
8 H5 Y/ X5 T6 J: g
set rand-dynamic 07 v* G/ x e l3 I- C
end: Z3 {5 e* X" v4 _; _
( |6 K5 _8 M% {
to setup-turtles ( K2 E* t1 X6 q- L
set shape "person"
0 L2 A1 a) B# _setxy random-xcor random-ycor
4 d% D& W2 K- h/ V& [* hset trade-record-one []: `; _. P3 R. g
5 e! D; ]- ^% K' H1 Z- h. O+ c$ w0 o0 W4 @set trade-record-all n-values people [(list (? + 1) 0 0)]
" I/ h4 Z* P/ ^& j3 b# [# m9 }; s" D
set trade-record-current []
4 P% b3 `2 l7 J& t; a! qset credibility-receive []1 N8 K& C+ ]; G3 y- S# T
set local-reputation 0.5
* J0 X+ T1 w- @- J3 I$ M& cset neighbor-total 0 @/ R2 x$ Z) [- |- n
set trade-times-total 0
% j/ e1 X, [& eset trade-money-total 0
% v3 e, A& b! x6 V( D! Yset customer nobody
9 n, c" U6 a6 |set credibility-all n-values people [creat-credibility]) J+ o) d6 H9 \: K
set credibility n-values people [-1]
) ^% i( T$ E+ G$ R$ Cget-color8 Q3 n) j" I1 e
7 p. v6 J2 j1 k6 Q% X) T' w; @. Send
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to-report creat-credibility& c" ?+ d4 s# Z: |) j% O8 `
report n-values people [0.5]" O+ f8 H& w$ H# ]+ D8 p
end
( a# f* r% Y U& M) t5 c. O
# W$ f0 c4 M$ N" k0 U1 }# lto setup-plots
9 p. r3 F4 i1 _
9 j9 V9 p1 [6 M! nset xmax 30
+ `1 v7 f7 G: z+ e/ P: `" Q; \) r( p) b4 o9 `, O, t/ r
set ymax 1.0
- |( B' N& s Q2 E8 C
6 d# D6 U: U% ? e, q" Mclear-all-plots
. {' n) w7 P0 ~' y" t4 o7 d3 a) B+ O) r2 A* B0 G# M! F
setup-plot16 O- m% A+ o+ A& r' E# Y
) n$ M, ~! ^' o) T5 Nsetup-plot2
U$ w X# c% l5 f: z" k
# m. {3 K1 [+ `* Asetup-plot3
\7 B+ z# a3 x& u1 e) Aend
, U* y9 I) |: b& f7 s5 N
9 J. _. m' R! D$ i$ c ^+ g" M3 u5 v;;run time procedures
u6 Y: X/ j1 s) r2 U$ c/ i3 H
* s* T7 [' x6 Z% H1 Y3 Fto go
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ask turtles [do-business]( T- H- W/ Q7 y8 `' r
end2 d- j/ Z$ A- y T8 B2 d
* o: x' B# t, c: u- ~5 O
to do-business
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; K2 ~; p, \3 r
5 ^5 ?& Q; T; t4 a: l* ~rt random 3606 i' W% |3 O$ a& }
7 p+ D* u6 X; b+ c- _. vfd 1/ |9 y- z5 J! V: C
H, i- g+ B+ G- S7 Z0 k- Z7 S
ifelse(other turtles-here != nobody)[
: k8 Y8 u: k8 Y3 n( v( |! h
* z% d+ b i9 U! D5 E0 o8 ~3 [set customer one-of other turtles-here
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;; set [customer] of customer myself; h6 M% S5 V5 i2 ^! V* B
% a! u! H% j q0 S0 m, v7 rset [trade-record-one] of self item (([who] of customer) - 1)" V( B" R* u+ C
[trade-record-all]of self K" E$ f: y# c# y8 w, v4 v) e% A
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( v5 G* B/ {9 W* S/ G& x9 k; U
# `, m/ _$ y0 E7 ~1 \
set [trade-record-one] of customer item (([who] of self) - 1)" `2 A6 U m7 y7 Y+ K
[trade-record-all]of customer7 F" c' {/ P9 c! H9 s' C
$ z* T7 c+ r# {' L, \* zset [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))
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% }1 [3 E4 j% j! V) I% A. vask self [do-trust]
4 [; R: J7 H7 m5 f; l- Z;;先求i对j的信任度
4 ]+ r# c. z# w2 r- z0 g Y% i
$ U! s. K5 G7 R# S, D9 e% Nif ([trust-ok] of self)1 g* y$ E# s) J8 ~9 B, [6 |
;;根据i对j的信任度来决定是否与j进行交易[& ]1 R5 T* G2 ^2 |* [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 {9 s# l4 Q# |1 r2 E! r
5 O# x5 N# d5 K& E; r; d2 c& ]; F* v
[
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+ ]9 \2 D" `( `3 K/ O& Y7 kdo-trade, A* `1 `% s( f. `4 O! C
2 @9 e* Y& i1 _* z
update-credibility-ijl# X2 y& @2 D Y! p, u
( t+ x- R" S" W1 q L* h' _+ uupdate-credibility-list% ]2 N1 ~) V, k7 n
8 r' C. n: V) O: n" _
7 U7 [, E! c# c( L* ?1 T
update-global-reputation-list
* ^1 ~- ]4 x0 Y5 w/ I
5 W' o" h% m# p- j {6 I _, Qpoll-class* T, G# @, J9 e% z
f7 j. z0 E: j" J1 K! u aget-color
8 l: s- t3 \: W3 ]! C9 I0 f) I0 N+ _0 S2 i. H4 w7 a
]]
" ]0 h) {* i- S; V) s
+ e' e! i1 `: I" d;;如果所得的信任度满足条件,则进行交易' q$ ~+ V' o% |$ J# W; r
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[
& {* h, B: `' `0 L1 X- J4 A) W6 L( v P. I
rt random 360* @$ Q! q8 d, A$ e3 c9 {9 M$ G
. o+ V) z2 {+ u; s% mfd 1
2 k* y3 p' Y) F4 y# R/ n
# w* J ]( P+ E% s. f+ P( c3 _8 n]+ o# ~" j9 ?+ U! f# y
) P. z6 ~/ C$ B! |9 }end
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4 x! P8 w% Z/ Z2 L. U0 Tto do-trust 7 n9 G3 n" A' E
set trust-ok False6 c% x* I$ S% i [) m: b. Q
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1 E6 P b+ h! S; T- c @9 Ilet max-trade-times 0+ ~; d6 y8 r3 t0 z. C
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( @' k$ o; p4 Y* Xlet max-trade-money 0
% j6 J5 ]+ M" o$ A8 ^( M' s5 mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& a2 Y c0 q: s' i2 W9 A4 alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 C- F) z2 i. ]% z; D$ O8 j
% R6 X" i: O9 H6 X) y
( Z) V' _) _& S8 h0 Q: ?9 s- C9 jget-global-proportion
# z: r: y0 F3 x2 `; V. ?) `let trust-value9 t8 ~! F* z# h! A8 z% @. H
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)5 O3 P/ Y9 e! Y0 i& o/ x0 W, r, l$ d" l
if(trust-value > trade-trust-value)
; c: }% j( g6 F ]0 c5 \" ?[set trust-ok true]
2 y* f2 A5 D% E; T5 F. Qend! E s- T( |# q- d' C, ^$ q
1 V2 y4 E1 U- v( e0 Kto get-global-proportion
/ v, |! S1 t4 d) h: sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( R% z- k4 \) Z2 }$ C% o
[set global-proportion 0]+ ^- A0 ^! @* ~% ~$ u+ G
[let i 0
3 Q5 ]$ m( j' @6 z7 n. zlet sum-money 0
2 O$ i0 ~5 d N3 C6 _while[ i < people]% W3 a/ K4 I, Z$ k, Y
[
* e3 D. n6 G e0 b. Mif( length (item i
+ }4 I. Q/ U4 L _[trade-record-all] of customer) > 3 )- p% P8 O) O* g+ b
[
2 \; D% S2 [1 x; {0 {% C" yset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( T m) D5 `' [4 j% Q( K8 s], a! @9 B J5 u/ W+ d. L% j4 J! p
]
: @+ v! ?( @6 M Hlet j 09 e0 \- Q; c! y: M* e4 `1 l" H
let note 0
; t, ~" A4 m* q9 twhile[ j < people]
4 H% X# `4 `- v[- g) P3 l* o. c/ ~4 k9 f% d! J" d
if( length (item i
' A% G7 v" h( Z1 j) q3 [[trade-record-all] of customer) > 3 )
! o2 B- g- S m[3 u: |: w& r4 \. Z: H$ ~" B' ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% q5 x: ~$ T; V9 `/ O2 I6 i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ \% n# j+ h/ a; M' \+ h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 M8 Z5 g$ x9 q( \6 o9 e1 _% r. D- |
]
0 g8 b" y, k# X; Q- b]
1 w) }5 F( V3 A8 P1 J5 U# }2 [) ]set global-proportion note
# \$ e- }6 D% b- U6 j: `- s7 h]5 W$ F( R( k& d% e3 C$ j+ l
end5 A6 }+ B y# N
) A! _* d0 c! Uto do-trade m+ f/ c$ H! `8 O
;;这个过程实际上是给双方作出评价的过程
& r; z! U1 ?7 n# Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 ?% e) ?" o5 _5 h9 p* A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 g: c/ y. U/ r- L! m5 H
set trade-record-current lput(timer) trade-record-current" B& v4 x' I7 _1 r1 A
;;评价时间
+ q: ?8 N; e2 x7 s) s Vask myself [
) K& r3 `. p3 Yupdate-local-reputation
7 r/ G/ t9 b3 n9 Bset trade-record-current lput([local-reputation] of myself) trade-record-current
+ n( B% e( A$ L! n, _6 y# L6 O]
4 m" Q1 a6 ~+ {$ b9 Cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* Q" ~/ `/ a0 r* m* b. x8 e% c! z# ^;;将此次交易的记录加入到trade-record-one中
O, @7 @3 [0 c* g0 M9 y8 Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 V7 t: a9 W& C! `
let note (item 2 trade-record-current ): P5 Y3 b4 C- j6 j& |5 J
set trade-record-current" [# `* e. f5 j' }! `; U& r. n
(replace-item 2 trade-record-current (item 3 trade-record-current))" O6 P. _+ i0 C+ Q
set trade-record-current# z# ?" r0 I3 P+ X! C# q) z; D* m
(replace-item 3 trade-record-current note)
2 `( m M0 i: x0 b" U0 d4 _6 H& \( A- i3 \% Q/ s1 r. G6 h
: a! ]$ r5 o% A4 O$ X2 ]8 x
ask customer [
3 L( k6 A) E! [. `3 _update-local-reputation
$ X1 a% {3 V! iset trade-record-current
7 P$ F( z* M" E( i3 B(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
a2 n6 P& a s$ z/ C# S8 D]
) ]4 `6 [7 n7 Y& E( C/ k
& m% d# n* f1 y% ? w$ f/ U* O) R& ?% l
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) H4 B. n& P/ c- C# r
7 Y5 V# z! P1 l5 s! Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). u& n2 M( Z- d4 _
;;将此次交易的记录加入到customer的trade-record-all中! J8 r! d6 Q, T5 v" I2 x- E
end
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to update-local-reputation
1 ~' |8 m) F! A& [set [trade-record-one-len] of myself length [trade-record-one] of myself
5 u7 K) _1 L+ v
7 {5 M; n& z% f; U/ X( ]! k5 X5 A) B5 e0 [7 l
;;if [trade-record-one-len] of myself > 3 6 p4 `3 s. O* V, S
update-neighbor-total9 K; Z9 O" S0 F' N8 q7 e" e
;;更新邻居节点的数目,在此进行0 f8 @! L8 [; }6 R
let i 3
2 t6 G7 ^% z$ f0 [! V" Glet sum-time 0
( w% x& b( b( n/ _while[i < [trade-record-one-len] of myself]
* X; I# z5 a. I9 s' d( j[
' t! V- V5 i3 Y' W& }3 lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# O0 s1 _' ]. s M
set i
! J7 o" l: a5 M2 n! _* b( i + 1)4 t2 o4 w/ l( Z. e3 k& T
]4 }/ }4 q1 j- h: _2 g
let j 34 G. x! X9 V! y/ f- C
let sum-money 05 }5 c% k, u6 f0 p, A4 H/ k {
while[j < [trade-record-one-len] of myself]: o% P/ x$ d. k& ]* d! a
[1 I: @- f. V; L- ^
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)8 C: I7 u1 ?, R: F2 J
set j* k0 `5 G; i+ Z6 \0 S" M
( j + 1)
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! S: z7 `& n* Z4 U' _3 U7 Klet k 3
& n3 ? R) ]' Q% M% D: d" j* Rlet power 0& K! W$ O0 P1 l* j
let local 0) P' B9 A9 ?5 P- k( U& ~
while [k <[trade-record-one-len] of myself]' g8 j: @% R! B: s3 O3 i" m0 N
[
( W* m/ K6 }. _' ?$ J2 n% `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)
: ]! M/ l& _5 a% G) L! l) u2 O: Tset k (k + 1)
8 U1 S# E2 n* y! a$ {]" W* v2 ^& g6 H
set [local-reputation] of myself (local)
" n+ u3 M, f. u, O% yend6 i% c, ~3 z' N, t
( Q6 P4 P7 }5 p+ Q9 ?- b, p& L5 fto update-neighbor-total
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2 T$ [- f% C) A5 N8 r& K* Q" pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; F( i3 ]) y6 \9 ?! l
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end
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to update-credibility-ijl
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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。" _( N9 J" e' A
let l 0
5 G$ x' M6 H/ |5 _ f3 uwhile[ l < people ]
6 u- v! p5 F3 a- g' Q$ ^1 W z6 q" i;;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 Y5 }4 t/ V7 s9 t6 U: F1 Q! i5 r- j
[3 l- H: F( @0 p
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 P$ n: z6 H% }; G7 I# D; nif (trade-record-one-j-l-len > 3)
" H8 }3 b1 W% Q* h/ `[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* X& _4 V D4 N, F, }) G
let i 35 z& Z G$ u) ~2 t0 P, Y6 M% e
let sum-time 0/ S5 E6 W$ l& x, m% Q/ d$ ^
while[i < trade-record-one-len]
! ]. b, P# G. Q7 U& I[
1 m; S. g& Z( p5 P$ Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( {6 m& O- @4 ]) y) t+ L. n
set i, v! Z1 B% ?3 C8 t+ {& k" u" i
( i + 1)
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let credibility-i-j-l 0) u4 G+ r# b2 v! j5 q
;;i评价(j对jl的评价)% W) s) p6 U9 j5 [5 D( k; N
let j 3
5 O/ p3 W7 A# _! jlet k 4
9 c' Y q s4 @% twhile[j < trade-record-one-len]2 q2 f/ u0 v2 }7 r
[! w5 f: M& @; D0 p9 u+ H
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( C' v6 c% f% q1 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)& Q8 G, Q, ^" }) `& Y8 U- C7 D6 S7 m
set j
; a8 U( {+ P' v& Y4 H: n1 Z [: E. ^( j + 1)
* ~1 [1 T0 [6 m]2 o, u: A! d6 k& o/ ?* r5 V+ B
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 )); q) r9 d5 f* \; w' }( s6 c% Y
" g, z3 h, q* U7 r
* r7 B+ w7 P0 N4 w. klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 _* K! Q9 e' m. n$ M;;及时更新i对l的评价质量的评价
! T' r) k/ Q- Gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 H+ g* T) T. x+ V: Bset l (l + 1)
$ x, u6 T7 z% ^4 Q5 F# I2 [! U]
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to update-credibility-list
, b- ?" e; y' dlet i 0
+ H& R9 l3 Q7 T2 I i, o C+ Vwhile[i < people]; B* c7 t, S) }! a# c* Q
[
& X9 N {1 Z7 Alet j 0
# X/ ^6 H, z) ^) ^: h; d" O, I+ blet note 04 p$ _9 w. p/ c" d% ^4 C
let k 0
4 E, k" g- i8 e$ i! Z;;计作出过评价的邻居节点的数目! ~* `1 k5 i% J
while[j < people]$ K# w# T& ?9 R: R/ Y! d/ ^
[
^* [7 q: u9 m7 gif (item j( [credibility] of turtle (i + 1)) != -1)
f. ?9 ?( ?+ v( H# x& q" l;;判断是否给本turtle的评价质量做出过评价的节点
) `/ z2 Y1 J7 ~8 y& C[set note (note + item j ([credibility]of turtle (i + 1)))
1 m0 K8 R8 Z$ P% \- u- ];;*(exp (-(people - 2)))/(people - 2))]' K# W# i* ?$ j( t/ Q7 U& M
set k (k + 1)
$ T1 O" c {- [; f7 V]
' X5 H8 E3 w: T9 B: S& j. f9 Qset j (j + 1)9 Y' f. q& t4 J1 n W1 H( X- j
]& A4 |3 ?- u5 U! ]
set note (note *(exp (- (1 / k)))/ k). |' r' @0 u7 t0 m- d) e
set credibility-list (replace-item i credibility-list note)
. `, h1 A4 c; S, w- qset i (i + 1)+ T9 J4 `, V2 ^7 n0 j
]8 S8 L' I% m+ Y, {8 O# A: W, ~
end
3 \/ C! E- c0 G& l( u& j: C
( g9 i9 |# o* v6 }to update-global-reputation-list
3 i1 h) Z2 R* D% f/ k- Rlet j 00 G! ^, B$ N% U/ M
while[j < people]8 `$ Q3 f: s" Z2 V% E
[
2 |3 w( S5 _( rlet new 0
/ I) q( @" H1 d/ `4 N, ~+ f;;暂存新的一个全局声誉. H' m7 W# p$ m% d/ a
let i 0$ U) f( u0 y# K, X2 v* ?
let sum-money 0
1 p, W5 J' _$ _4 vlet credibility-money 0
1 \7 A" _, V+ Z3 N; zwhile [i < people]% g- t0 G% Q6 P4 |/ d7 V
[
w1 D9 E; U! p9 a: P" Hset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, F1 d2 b4 f* q* [: C/ p4 {* Pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ X+ @7 D9 f9 b- `/ {7 | h: _set i (i + 1)# p. a% z4 y, e. }3 p* S' ^
]$ d$ R! `: S4 M# W
let k 0
% N; O3 E6 D! vlet new1 02 e9 N5 u) e1 [8 k* Q3 L: n& r
while [k < people]
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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)0 H( ^3 ?& Z. X8 ~
set k (k + 1)
* d' Y! t2 f v) w% W g]
* ^( M: E/ i% H. Q% Y8 G7 c. ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( t1 ^1 ]8 }' M+ c; Uset global-reputation-list (replace-item j global-reputation-list new)
7 f7 t6 _; m9 sset j (j + 1)4 B! y/ z1 ^& b" E5 @0 N: ~2 G8 [/ f5 W
], u m5 L0 n! k# X w
end
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+ T$ t5 g/ n, G# }4 l9 z: p) @to get-color
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set color blue7 `: Z$ ]3 q J4 g+ \- [5 [
end% ~) G( A8 N8 r) z* h0 |
9 F \6 y O; I& a
to poll-class
3 L9 }7 O$ p2 fend
% r$ p. P/ {" h% `& Y. M
2 O" z/ {1 e# T7 u/ S9 Yto setup-plot1
3 _, T( T1 u( c, |9 g& x8 O+ S/ q+ m! R& t# z: S- T# S; B
set-current-plot "Trends-of-Local-reputation"
; s3 {6 G( ^" h/ z3 `- U: }& N) z1 Y+ e: i* Z( S1 N2 \) G j
set-plot-x-range 0 xmax# @, d# m! N& o& ]
0 U3 E8 V' I a6 R2 oset-plot-y-range 0.0 ymax
7 s [, ?, A# c4 Z7 l4 s$ zend
8 m* X- p" h7 S6 x8 H# K6 z3 X# A" N& Y$ I1 w+ c1 C& [
to setup-plot2$ R0 q" c- R4 J9 S& }
" z* T7 X& _0 {* l' Z
set-current-plot "Trends-of-global-reputation"
5 n4 ]" P$ J2 ^- h! m
4 e+ a! u$ r( Q cset-plot-x-range 0 xmax
0 g4 o/ h' n' f) n! y0 j
4 Z8 |; H/ p4 f& p2 K5 Cset-plot-y-range 0.0 ymax3 Y$ k G/ h! c0 W8 \2 G- |
end
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to setup-plot3
% s- j; i# L0 e) L* c& f$ m
+ ?" z7 I% B- }! o( d8 Y, hset-current-plot "Trends-of-credibility"
% a: y5 M! m w' [! r: P" S- \* j6 y" {" g/ T0 j* N
set-plot-x-range 0 xmax
6 y! q# M8 m0 Z
' Q. x- H: t, B( z% T, s9 s2 p2 lset-plot-y-range 0.0 ymax
. x. n; O! _, Q! y9 h4 p+ |end* h( e4 a1 }1 T: g& a: `
; E5 C. E9 l5 U H! fto do-plots8 g& {1 L8 t1 i& }
set-current-plot "Trends-of-Local-reputation"
4 E1 _4 `2 M/ h# x- d8 yset-current-plot-pen "Honest service"
% y; x& T ?# ]8 \' k, g2 }9 J& A6 Aend3 X& r$ f" k$ h$ i% N! R
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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