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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" M& U3 [7 i _* L
globals[
b6 _3 ?* m7 S3 l) f5 bxmax/ F! y$ h0 j. T
ymax" ^$ T, z5 z" L4 p' h5 K8 ?
global-reputation-list
( Z" M3 x5 V2 @' U$ ]
2 e$ }% { ~0 b7 _- B0 ?& ~# ^;;每一个turtle的全局声誉都存在此LIST中1 S* `9 _: g5 b% w
credibility-list
6 G' _& e2 }. H$ p: U' ^0 t+ @;;每一个turtle的评价可信度
6 T" |9 @. w! v, g3 B$ ]! Phonest-service4 ~4 \1 d2 |0 K& b, O4 U
unhonest-service
1 e" l9 `# J7 ], uoscillation: f% @/ z3 }* ~1 v9 ~
rand-dynamic+ {/ [3 s2 e0 H x" E
]
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turtles-own[
- n+ s7 E; |$ @1 {trade-record-all
! U0 L* w1 j% v0 u4 a' \) e# \9 Q% d;;a list of lists,由trade-record-one组成
2 E7 Z5 z. \1 E5 Htrade-record-one
( `" Y2 E' r# X/ f" B4 F8 G/ S;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 s( c0 X6 S/ E. q% s8 `4 N8 c% e$ R) i" 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]]
* e: a4 }, O6 I: X8 T* [& ^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]0 c2 K R2 m; X+ N$ F
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list0 o- x( V; j. y/ n6 F A. M; m
neighbor-total
. R! x2 h, U* G5 O3 q8 a! ]! j;;记录该turtle的邻居节点的数目5 W/ @7 L9 U% ~' p- u9 L
trade-time m: t- Y) \% \/ m& t
;;当前发生交易的turtle的交易时间$ }- Q- @8 z& z9 f
appraise-give" d5 o+ m1 W7 f' P$ o( ^
;;当前发生交易时给出的评价
`3 E' X2 t ~" F9 Q! _appraise-receive' f/ c7 P* k6 Q% s8 k; d
;;当前发生交易时收到的评价
. M) Y( s. a& R: T. ^. Yappraise-time
' m" t# h, N% s8 G8 Y) `;;当前发生交易时的评价时间: f6 b& L8 r7 z* H# o& J
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ J1 W8 u5 @4 x: C1 b! c6 n! \trade-times-total1 \8 B; b, z9 |& }9 A, s
;;与当前turtle的交易总次数
% c: [; R9 ~" Z& J0 T& qtrade-money-total
, G6 ]% e7 m6 s' k;;与当前turtle的交易总金额2 |. G4 a9 w$ }* c% _
local-reputation+ s }. _+ k* L) h: T: p
global-reputation
- _/ v+ M) @7 b$ qcredibility- o; C5 Y# W8 e
;;评价可信度,每次交易后都需要更新
+ n' N- I \' ]( Jcredibility-all% `1 Q& B( c0 {8 p4 Z
;;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7 {- B K, j9 ?# a
3 A9 W E, C; q, W5 \' g( Q
;;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0.54 r1 q- m1 [2 e3 b) E- ]) z
credibility-one( b Y; R) {8 u# y4 f
;;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
1 J$ r" Q. s3 \global-proportion( q& K- q% g! j6 k! X; ]" B
customer
1 z' g6 Q* w( I+ Rcustomer-no3 P! d8 Q' K% ]$ U1 ~2 z
trust-ok. z7 j6 v( v1 f8 Y- X# v5 Y
trade-record-one-len;;trade-record-one的长度; \6 ?* B% k6 o6 ?: a( w8 M
]
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( [; L5 _. @) u- E f;;setup procedure
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, o* M* |, M; y' wto setup
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ca
+ a1 z5 r8 N) L* H( `6 d1 R8 P, _& Y |) L6 B2 s0 V
initialize-settings5 Z/ S& ~) f+ W p2 F
a! @0 p. x, z% ` z' l; F- fcrt people [setup-turtles]7 d9 x1 h C, |! D
$ A( a# Q0 t& J6 S% W9 c
reset-timer
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, e7 _9 p7 `/ C4 U" c" P+ c6 @poll-class6 F3 u& ^6 f) @( X2 D% O0 r3 T z
; q" I" e5 w5 Q# C( hsetup-plots0 n0 P+ I7 w% y
/ Z4 i, O A% l, G6 h% \
do-plots+ ~. x" I0 {/ n. R+ T
end) d, L9 r5 q w+ Q
- X, X* b2 C3 d& ^to initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 08 p+ k* C4 H8 M9 }" D6 v. ]: a
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set unhonest-service 0
) e9 `# g* k, s& y) a+ z! `! `( ?& [* ]$ X
set oscillation 0- r: Y1 o/ c; X
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set rand-dynamic 01 O; ^. D, K4 d, ~
end
E. S2 j( F* Q0 z6 E. Q( ^8 O7 w, E, E. K" n8 D
to setup-turtles + H, ^1 G0 v' Q& T0 j" _; Z
set shape "person"7 s+ [$ K' j1 a/ M0 b a) d
setxy random-xcor random-ycor
% t3 @& n- P- Q# y3 V4 M$ V, Iset trade-record-one []# h3 X' B7 ~( ]& O4 k1 e
+ o* c& K! E/ X; R5 m( \set trade-record-all n-values people [(list (? + 1) 0 0)] : [$ g3 l* v% @. l& x
- f0 A7 j8 |3 x6 G. P* p
set trade-record-current [], ?$ M8 o3 E Y0 a1 O9 P5 T, E
set credibility-receive []8 I) }) J( p$ G, c# G8 c
set local-reputation 0.5: @5 S9 }# L+ ^9 ~9 [5 s* m- K
set neighbor-total 0* \2 X7 t* A7 ?+ \* D2 ~ O
set trade-times-total 09 Y" r' ^& C2 Q5 m
set trade-money-total 0$ ~5 \2 s k- e! g4 R8 [' x
set customer nobody3 K3 q+ L* M/ i/ @7 i
set credibility-all n-values people [creat-credibility]. j, W# A8 q) m- I. K8 h6 p
set credibility n-values people [-1]) e/ S3 J/ q4 @' m5 c: ]6 C
get-color! s* z3 |/ g( N1 v: b5 [
4 I" D# t4 y: f. N, {6 G
end: P1 ]3 U! J0 E$ [
" A* P0 @$ }$ [7 n6 Vto-report creat-credibility
' z6 u; `) b6 X# W5 Freport n-values people [0.5]# m( ?6 |$ o! w7 j" g
end& _7 k- E$ t' ^- j% X' [# R
6 g! Y1 Q9 D) M5 D& [ S7 kto setup-plots
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set xmax 304 V, E, _1 L1 g4 S: l
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set ymax 1.0
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clear-all-plots
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# I: c$ Z" U7 M' q3 s# B' X( d+ ksetup-plot1
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+ a* L" l$ k. F; r, m' Y$ M( Rsetup-plot2
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setup-plot3
* D7 _* S, r p! q3 F2 `end
! E8 k+ F! G) l2 ]5 x, G9 k7 U
7 q, b3 [# r; W& }5 U" u7 h8 e;;run time procedures$ M3 j) j# m' L6 v" R
# r9 i+ \& q1 V8 t; G8 \to go8 e6 y \7 s: p4 {; y* t: z) \
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ask turtles [do-business]$ c/ F% W# O+ [+ G2 q& X
end
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# d* U, R$ m" p+ P. T1 D% A+ k0 yto do-business & o" V" S+ Q1 Q6 Z, _7 ?
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; \& {& Q1 r; z9 B/ J8 ]3 srt random 360: H7 K# ?. ]! I8 t; \
6 _& Y% i8 O. Y4 d7 v$ cfd 1: a+ |) B8 |) W+ Q8 [- ~
1 I- k- C6 a. k2 y6 Difelse(other turtles-here != nobody)[8 b6 A0 L c; I2 a) j
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set customer one-of other turtles-here" V8 N$ U$ R) R$ z* ~7 |' N
) M) U( E$ u+ i;; set [customer] of customer myself
4 u& P* P. m S6 S7 `' }' q
' X9 t9 |! y7 Q, C2 uset [trade-record-one] of self item (([who] of customer) - 1)
& |% Z0 N3 V8 t0 l% S[trade-record-all]of self8 U9 _# O. l# }# R. p) u
;;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). _5 Z2 e, K2 U' c) X
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self j8 `* z$ |4 Q4 @. D- F
* e& \1 E1 F% Dset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]* n" V' K/ }% q0 w' L" e
;;先求i对j的信任度
( a, U' C; l Q' h1 ^
3 V6 F4 `+ @2 o V- ~( e5 T% gif ([trust-ok] of self)" i7 ?1 |* d' F' x
;;根据i对j的信任度来决定是否与j进行交易[
) |7 q7 c! @+ ` F% ~6 xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 n2 `# @% n, K9 i% I: E! i
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[$ j5 Y% |" h4 m
& ?; K% f" l9 U5 Y5 M5 W" A' m& d* ydo-trade
7 D5 |8 W+ o+ }2 I8 [
/ N- v. g S) E* e1 r$ Hupdate-credibility-ijl3 W6 \7 a8 K- p {* w
; ~# s2 R( j3 P' U& B/ e2 Mupdate-credibility-list7 f, x5 s/ x7 S2 ]8 s/ P3 U" N& h
9 F: z/ h! b5 m! ~& O, K. s! P
% e" i' e) R0 T* Dupdate-global-reputation-list7 l, J; E7 r+ i$ U) W6 Y
0 o$ }8 q3 ^3 `; y5 Dpoll-class
( I0 O+ I P9 p0 F
% {# N& B& T x0 U4 u; `get-color
9 V* h# F1 _' x0 K$ q% P: ~8 U+ Z
]]6 S$ N N2 r# a; R' f6 o6 s
) N3 n" z0 K ?$ `8 d0 o
;;如果所得的信任度满足条件,则进行交易3 r( }' k1 |1 b, x* P
1 [: w! q3 A9 O2 v5 B" {
[* i! l* z7 J6 I' q# s
7 f: q0 M. a/ w" z C# [
rt random 360
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" m7 N2 D2 z# `; Y+ Q% s+ Pfd 1# Y( z: U3 ~# `: l) x) A
& ]& i6 H( D6 W' a U]! [/ |' C& t+ ?( R4 P4 {
" e1 R, [) H) A
end' t- x4 T1 b6 k+ D
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to do-trust * t# ?8 a6 _! I6 n9 {) p9 V" t
set trust-ok False
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% ]" x& z9 N! n* c. y' d4 d
/ u: b/ \- ]8 A- d! E ^5 F: G7 \let max-trade-times 0$ V0 c3 k z/ o: W7 B5 `% w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% N% ^+ c: G! jlet max-trade-money 01 r0 Z' W, \) y$ h
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( g7 _6 {9 e5 i- g+ J7 B; b
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
: A6 }+ P6 ~( B8 v5 R& }
8 u& c+ ]2 B1 d. t% h2 s# u' Z& c: Q/ B6 Y) O) E
get-global-proportion7 X2 `7 O! ^3 [2 w
let trust-value& T; ^6 {6 l& {# Y( N9 ` @
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)9 z+ ~5 L# R9 {' C% b$ [
if(trust-value > trade-trust-value)8 D: c7 ]9 w6 p/ C. m+ U
[set trust-ok true]: W+ ~7 }# \* k" H3 m& L
end& s) L! p3 n0 g& G2 i
, y) V) F7 Q! K$ Dto get-global-proportion
) _0 r2 T6 ^ g! `# Vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 L* m% J+ k U4 t! v% F; r/ L[set global-proportion 0]
* H4 N6 [! A, [: L$ ?4 p[let i 0
7 @0 j1 ]/ Z; i, `0 \. a" }, j3 O2 Zlet sum-money 0. i8 m: C c5 N3 Y; r/ A& y
while[ i < people]
% E7 Q2 L5 e! M' t[
1 H* P( D R8 s9 w' Aif( length (item i3 T, c6 {/ B. q! U
[trade-record-all] of customer) > 3 )
/ ~. s. @$ p# b3 g% w* p[+ L) ?3 M( m3 I) F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
M; N) V% j ~]
* B& M/ l& R/ H" []' c4 l$ [% Z" o5 M' g9 z5 O `
let j 0
6 e& B$ [+ {! F+ blet note 0( x q' C6 b) y& P8 l$ @
while[ j < people]9 s7 G0 t6 O7 @" A& Q1 k5 c: {
[, \$ z4 D+ Z3 M! C0 T0 V
if( length (item i. \8 W) M# M* D8 `
[trade-record-all] of customer) > 3 ); ^# l- ^* b% v9 I
[3 S, Y! w1 i5 i$ [5 R9 v
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 ?% V( M, Q! Z& a3 r5 ], j
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 z; l- \) i3 \8 ]' v" |8 P& p4 T
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 v0 g: |3 G5 O2 X- L e) |1 ]
]
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set global-proportion note9 Q) h2 J7 w& h- Y' o
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end$ x$ h: h, Z5 C
h/ \* c5 ]2 H$ n7 D
to do-trade
4 `& `3 p; |3 F5 A. ^;;这个过程实际上是给双方作出评价的过程
2 s- I1 ~% c) N) w1 |: uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) J. P* f- w6 ^& e- Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 ~" w1 }( w: h3 b- Q% ~
set trade-record-current lput(timer) trade-record-current
! D9 q/ U' H. B1 r;;评价时间
% m' T3 B/ H5 s, J) w$ A# |/ @# n0 cask myself [: R0 B8 \- \. b$ V, [
update-local-reputation
" ?2 e: e. d# Z1 v% Dset trade-record-current lput([local-reputation] of myself) trade-record-current
+ g5 s9 }2 {& ]]
/ s; r7 e; I7 \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: e: T% z; T: y2 U! I7 j. o& T0 e;;将此次交易的记录加入到trade-record-one中" D( c* U7 V( d; S/ ]: u
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) s$ ^" v# u. M% a3 B0 n5 Rlet note (item 2 trade-record-current )
2 ?# C6 ] L3 lset trade-record-current
( f+ ^: v& x1 l$ {% \8 M; \1 l(replace-item 2 trade-record-current (item 3 trade-record-current))
% |& P& ^5 j, f! m" `# j! Xset trade-record-current
c# q3 J$ W& c, X( H: m( k/ [(replace-item 3 trade-record-current note)7 c- K3 r6 F& a
: N2 @4 C* f+ [ n) U, V( [0 `4 J3 ^8 E4 j
ask customer [
' E6 Q9 t7 n* wupdate-local-reputation
0 B1 ]* q5 D: L8 e" z7 ^& wset trade-record-current5 i) r* e9 }* g; d: P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 ]% T, E9 p3 q+ t, @]
T4 q7 W! ]) i+ `+ ^9 Y. j; {: W
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), F A( _/ k5 e% h7 @& E0 h; O
;;将此次交易的记录加入到customer的trade-record-all中
, P! R7 b/ @ }: E2 Z% o' ?4 qend6 `; V6 v! U+ X+ {6 P( G) u& d) }
5 g1 B: ] o# Mto update-local-reputation
3 p0 v+ k' Z4 Zset [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3
* F8 u, _( W( aupdate-neighbor-total
! y6 C+ a' W# l$ z, P" _8 j: A;;更新邻居节点的数目,在此进行" J+ H" |8 ]; m/ W3 Z& h# `. P
let i 3
/ _4 d7 t/ W' F# `5 p; alet sum-time 0
/ P0 I1 y) g; N9 Z; Q+ d, _- ?while[i < [trade-record-one-len] of myself]
6 z' q' |# K8 f- h& A- M5 H[& e% d" R0 G, }4 C2 ?4 A
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) E' q5 I5 h2 |
set i
. J% c4 M, l! n0 a% |( i + 1)
2 x$ t3 N5 k4 I! E( E8 h1 v/ h# `]- e# Z6 L8 v2 a
let j 3
) j; H- R `% P: ^let sum-money 0
5 H$ s( z* G6 xwhile[j < [trade-record-one-len] of myself]
5 ?9 M0 s8 V) t4 e[
! z6 I$ i/ n$ m" Sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ X2 T) D: ~3 S |7 dset j% }# p5 Q: O# r3 T4 k" \
( j + 1)! g4 K1 r9 b9 i1 z9 \7 w
]' b" i. N' R7 {, E3 n
let k 3$ A* C) s1 K" v. a
let power 0 y. N0 s- W1 \ J' d
let local 0
- e# u0 V, [# F; i" H% Y, qwhile [k <[trade-record-one-len] of myself]) S7 X5 R* A9 T0 \3 ?$ {
[
: t( A0 Z8 n5 t8 tset 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)
4 |4 z. d0 s4 R5 ^" i4 p6 [: y) Nset k (k + 1)6 K. W; x5 h3 }0 f
]% G. s v+ M% A" Z: r( L
set [local-reputation] of myself (local)' _* n2 t( f8 Q8 j9 Y2 o3 K- C
end
$ N5 N; ?0 ~" q3 b; u3 O6 m5 C
; T( t: I* U0 n" x4 m# v' U6 Tto update-neighbor-total" Y+ w. x+ z0 G2 K
/ G9 s$ ~% W$ ` f: Xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% {$ t" k& t; S3 V' q8 W7 }5 @, G! [( o. N2 r$ v. X
j' \4 I5 `) M3 F* x/ p9 ]end
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0 X' _9 v& a0 H' p" Q, N: uto update-credibility-ijl
6 Z6 O3 Y( f3 e2 }7 q/ X# V1 D0 I, ]% b0 a5 Z2 u, c
;;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。
/ v2 q6 D, V; Z ? Olet l 0
6 Y$ x) a+ ~6 d8 r2 Z+ P# {while[ l < people ]/ b7 F3 v1 i" I( ~( z
;;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0 H/ x6 A, i1 ]5 t2 q6 B# y
[( T9 u8 w- T) Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)- H' Z! I6 a/ `. |9 h$ K
if (trade-record-one-j-l-len > 3)
" W, ?+ N) R. t' b6 S% ]% b, p+ p[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
9 J/ l1 q+ p" X6 T1 W" T7 ?, t: X: `' olet i 3. _; Z# d4 I4 G! w5 r: B
let sum-time 0
9 d3 @! @) o2 j& l& y2 |6 H8 x" `# zwhile[i < trade-record-one-len]
' ?2 I( `3 p% N[
8 a: C3 e/ _5 P' r) @5 K4 i! Y, ^set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- P; p+ a# D; E* F, Y# \9 Bset i
+ L6 d2 w9 \' E8 C6 R% {1 F( i + 1)1 b1 Q# R0 x$ z7 s) ?
]
# Q' @% k/ Q6 b& `% D4 P- Hlet credibility-i-j-l 0
' S4 Y3 f$ n$ d: k0 j* k;;i评价(j对jl的评价). T; w0 j8 [! d$ p* d# b
let j 3
$ E# y- j1 h4 b9 O$ @let k 4
+ j4 G+ f8 i. n l2 `! F$ ~. @7 Twhile[j < trade-record-one-len]
0 [, \0 E" x7 z* P[! \7 R9 a( O) W. r
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
3 U. ]9 T. i, R7 c6 Pset 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)
- w$ _7 r; Q; |; T# s# v1 Xset j: E0 M s' s5 ?3 r3 `2 G' o
( j + 1)9 j! f( v. h4 K) m5 A) `) }
]
1 W" ]0 E6 f! c3 o. p( }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 ))1 i4 ?! G5 w! `: x6 D
1 ^$ V0 ?/ u& `6 [- q/ F' ^
1 U# P) l2 p. w1 O. E) L9 flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), \+ Z; ?# K: ?) |1 m
;;及时更新i对l的评价质量的评价
$ J- ~) e! b- k5 d: c: _2 N2 ?; ~set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 t' w C% B) z" f! k" p2 kset l (l + 1)0 P2 X. F& v2 D9 M
]6 g4 D5 Q1 z9 X9 c; ^
end( c) J' Q& a0 X/ L8 _7 v9 j5 }
8 K4 i: X- Y/ I# x
to update-credibility-list
5 r# H* e0 A- A' x+ `* Q/ D/ Z* Mlet i 09 k# j, k* D. v+ h2 q5 d/ j
while[i < people]
9 B8 X% u( M, X. L- X5 `[6 V+ W: P: m& U
let j 0
7 M8 h" g1 P( d4 dlet note 0) o: P( y! G* ^8 t* ^4 T
let k 0+ }# m, U* a- t0 X7 ?# W1 I
;;计作出过评价的邻居节点的数目
/ T$ h# G3 X2 a. r, i* K/ Z0 C/ |while[j < people]
# j3 L* R. C, d" n$ o3 A, x. H ][: s$ p2 W, X9 E; C/ W0 g
if (item j( [credibility] of turtle (i + 1)) != -1)% `; V; ?' s0 T$ {
;;判断是否给本turtle的评价质量做出过评价的节点2 Y$ C5 ?$ ^6 ^% {6 `: [
[set note (note + item j ([credibility]of turtle (i + 1)))
. J/ `) \% n% p;;*(exp (-(people - 2)))/(people - 2))]
L7 P) o2 _+ f p2 E0 {, Sset k (k + 1)1 m/ F. @! r# N3 a$ y
]; X* @% I1 ]5 c* H* m% s7 h
set j (j + 1)' i+ `: O% w7 U' F
]* B5 _6 D9 `) E+ l. ^
set note (note *(exp (- (1 / k)))/ k)6 D7 k8 j. h* t1 X( X( b
set credibility-list (replace-item i credibility-list note)
1 }+ d: ~8 s5 C! cset i (i + 1)7 {; z Q% |$ W" O: [
]
2 {2 m1 e) ?. g+ D1 ?4 _3 Eend
* E, o0 H: E# d K4 K% C& b, |. E8 [: Y; ~; i7 s& a7 D% a
to update-global-reputation-list: \0 d1 c# d: B3 p$ ^$ f
let j 0
( N/ C* P4 K: D; L- }; Mwhile[j < people]
4 h' [2 o& @4 P! ]7 O* Y[
_. I, H# K9 G$ N) Klet new 0
# [, C( u$ b+ D& n$ \+ r;;暂存新的一个全局声誉! Y" M5 j- v/ a
let i 0
+ x, M, A" E& olet sum-money 0
$ I- |& z( D& `% A x) v' flet credibility-money 0
& K9 U5 B3 @) L' q4 L3 Cwhile [i < people]0 _" M3 E# c2 p$ \# `
[8 k4 Y, V4 S$ Q6 I7 E
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( r9 f5 f# ^( {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* h( Q0 L6 p% p* Gset i (i + 1)8 U- I2 |$ p7 X
]/ H3 Z: F( N9 F9 X# P: P
let k 0* U/ Z4 u+ B# G* a5 T" f
let new1 0! o" T! J# B. ~3 t
while [k < people]4 S) n s# v# V2 }! n* \) q
[
5 T* p: v% N- G' Y! a& i; Oset 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)2 H0 g- a7 f2 c4 j
set k (k + 1)2 `; I/ T1 B1 W; r* x5 v8 j6 T3 j
]
/ K- Z1 w! L. F6 R; [8 B0 L. {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , W3 d9 m; Z2 z' K
set global-reputation-list (replace-item j global-reputation-list new)
4 ? n- D r( Hset j (j + 1)
: P; D5 Y# P) ]* C0 q% P6 Y& e/ M]( [/ {1 E U+ t% d4 x: g2 d3 n2 @
end
. [3 l E u& i5 a
1 b" R: J2 J# ?9 f; P8 y+ q3 ]; u- d: |" T* b6 M* H. F) }3 z
8 R/ H4 {( N* y3 Z
to get-color
' v: |. W p' ?' G5 }8 E% a1 S# \8 h# ^* F
set color blue
/ i5 Z1 R; \6 ]5 Cend
8 u' d: s! i8 G" L9 \0 K+ y2 y9 u! w4 ?5 J$ a
to poll-class
; K. x/ d! P9 j/ i4 rend/ T$ t0 R& s5 U- _& t( y2 T- r
! U3 U u, _ ?8 e4 o; R+ s7 E. Wto setup-plot1! |5 ^5 e2 P9 a1 e
& o2 c$ L$ ?, y) U' i* Mset-current-plot "Trends-of-Local-reputation"
P0 u$ N& N) J$ |, T7 h# x7 B/ ^/ \: d1 d* J: x
set-plot-x-range 0 xmax
0 V# y. T Y8 c9 x- G; _. k& i( V1 g0 j/ d' ]
set-plot-y-range 0.0 ymax. l& Y4 J+ C: ]# Q" }. `4 G( n* z
end8 u {2 r" [. ?+ K, y* k
& h' {5 o$ k: c0 g4 w+ Gto setup-plot2' }, C" Q7 s- u! s- A$ \
7 M" }/ I5 O9 V( A) Wset-current-plot "Trends-of-global-reputation"
2 {; x& V, i- L0 Q5 X- Y6 f: }2 @6 G5 j9 ` c3 V" t
set-plot-x-range 0 xmax& \" o; U/ L1 d4 d7 B- P
' x) T3 M4 h9 Rset-plot-y-range 0.0 ymax) O: I3 y. P2 Z" b( H ?& U4 ]
end
0 n5 J% r/ ~& E+ L# m: P+ S/ n# r9 p' G- [4 \8 ~
to setup-plot38 Z0 |2 H. Y8 e+ g! G
. `# v; }( G/ e5 J( T1 S7 D: @set-current-plot "Trends-of-credibility". f0 r1 K0 B, _4 q- r) _
% {( @7 |, l) O# o& r: Cset-plot-x-range 0 xmax
* C) p+ w0 ~. u9 h6 N4 h2 F& X6 o/ V7 ]- v; Z
set-plot-y-range 0.0 ymax
1 Z d' l+ W1 Rend
_0 G T' c K' {/ d8 L
* W5 f8 R$ l: I$ ]to do-plots2 A' N, M* d$ @
set-current-plot "Trends-of-Local-reputation"
, ?/ p# P& L9 ~% O1 O: `set-current-plot-pen "Honest service"
- f8 X+ ^2 B, y: u' H' K$ S# Bend
2 O. P+ v$ ]8 q2 q0 X4 l4 X6 j# W9 n* v6 ^
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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