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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
: E0 l6 }7 D. T" k% {globals[
# N3 x$ B T) u" i' ixmax" p U1 A/ d8 e' C6 t
ymax
" c4 Y& K; a4 N* X/ Jglobal-reputation-list
. O$ Q3 ~! p# m
" I$ X3 t5 w# b. S" w! d; u;;每一个turtle的全局声誉都存在此LIST中
_6 h2 N, Y' Y* T# d6 m% rcredibility-list# n- J$ }/ ^) x3 K
;;每一个turtle的评价可信度
. L) H4 X6 |3 Q% W9 Vhonest-service' y9 ?5 `0 e) _9 r2 B
unhonest-service; L9 w& |( n7 i$ k: K+ N
oscillation
6 a( s( k% Y3 v) I- k5 e! Krand-dynamic
: h/ B- c. W2 P( e- U7 D5 o, h]; m( ]! M# ~8 a
2 N/ Y3 K! n' s4 W- j3 o8 X tturtles-own[
7 D ^+ A) [* C. E6 d- z7 s" Gtrade-record-all
1 h8 {0 G" U6 c* A. v;;a list of lists,由trade-record-one组成
( n# W" \( }' Q" [, k% u# J5 ~trade-record-one
0 V) h1 i: g- p6 u* 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 m" R$ d1 l M) I( A9 D- t
/ t! b/ O7 D+ u! G;;[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]]; i2 n8 s' H1 y4 M% j5 K1 F
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]
A5 u; K3 }' Y: R- }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
1 Z6 M9 I! W! x, w1 Bneighbor-total9 o, s: ?0 P, M4 G4 M
;;记录该turtle的邻居节点的数目- V! o* m h& i8 g( M
trade-time
4 o2 G& C1 ]( |, c% n;;当前发生交易的turtle的交易时间
/ R9 I1 M% X9 s: w- ^8 g3 u; }appraise-give3 E! z/ g# a% u" w% [: M
;;当前发生交易时给出的评价
) \# |- Z' d3 i: p* T5 B% G+ Vappraise-receive7 O: ]' ~' q+ Q/ i
;;当前发生交易时收到的评价+ ^$ F( `8 [" q x
appraise-time/ @4 U/ q) U% C
;;当前发生交易时的评价时间
; w3 V) P, k* v! F3 F: [& Clocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
- ^/ L, [' {5 ]* d5 {, x: E! ?7 Wtrade-times-total
# W0 ?) R7 s5 s. D" X;;与当前turtle的交易总次数
) R/ j8 ~9 l" W4 k* Ftrade-money-total
/ C5 Q! j5 H# _0 T% ^;;与当前turtle的交易总金额, X" g' v6 H: J
local-reputation7 Y6 ]; O( Q2 K5 R3 d
global-reputation
5 d! a O K) G% S2 B1 ~0 `6 L, p4 ccredibility
- O9 R) W7 x, o3 _3 m6 s7 j;;评价可信度,每次交易后都需要更新
! e9 |' q Q ^* E3 I3 mcredibility-all: n* a9 u+ i2 r9 ^& t9 a- M
;;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. J, W) [' p/ H e. q+ F
% z2 w) [( l& f f8 k; L
;;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0.57 @8 m8 p# I0 X& t% h+ ?: a7 H
credibility-one
; Y( F5 R# h6 k- [# B;;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
* Z9 v/ R2 c9 d% o7 G4 U8 x v4 ~9 M( lglobal-proportion
- a* u6 L! N) Ocustomer) U! M0 C$ a8 X6 ?
customer-no) g* M, @3 U7 P3 t3 T( w1 J% u
trust-ok
. i; `! V* a' d( R, z/ |' Etrade-record-one-len;;trade-record-one的长度
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: M% h/ U4 L3 F j
;;setup procedure5 a- N6 k2 n# L6 N0 |; H
5 k9 S2 G c6 W9 [to setup
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# A* {! C6 G+ r( E6 dca
+ x) ^% E0 F; q+ }! r- v4 E# C, q$ q- y9 H' O
initialize-settings( N1 |. y. L0 K4 i2 H$ D
`+ t- @2 I4 I. J$ }% zcrt people [setup-turtles]/ e& O& B( e) S# V$ `2 |
+ ?6 A2 A$ @1 p4 w" ] @
reset-timer: q6 ?: w& s5 ^- B1 |5 S
7 m2 w8 V1 j! |- Vpoll-class+ H9 \1 o) f# u+ n# ]3 r" U
8 U6 [ }9 W) @
setup-plots
4 M0 r4 E# a9 J7 t1 t) ^- C9 ?% t
+ M, T+ `9 j$ ]& y- tdo-plots
6 s: \ J5 k& A. [, Jend
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4 c8 S2 B2 g% Z1 o( J$ ~* f6 p0 l5 G% ito initialize-settings1 N7 m* I: F3 t
! Y# Q. D5 L# V7 `, E8 E1 J$ F# w9 {set global-reputation-list []
8 U, z& M! f; b/ u( U
% Q! v* O/ V e$ |5 }set credibility-list n-values people [0.5]
% L+ ^/ v3 J9 C Q+ p4 L% m
/ g5 o% b N) Z8 n% Vset honest-service 0
6 J. X4 k1 i2 U# C/ n8 k, d2 E4 d2 X. m% x
set unhonest-service 0
5 R7 s/ }% C+ L R
: Q. U3 G J5 E eset oscillation 0 n2 y4 B/ B$ d% h+ \) g
" F& J- h& O- L E, L; Iset rand-dynamic 0. z, Y6 W" s9 X0 P- a
end
5 h9 g# j6 a- x G6 ?7 [0 \/ D+ \+ `* E$ \
& d( T7 e+ f% l8 O( vto setup-turtles % s5 E' W( o4 y8 Q3 c0 T' u0 W
set shape "person"( @/ X, ^2 u1 E8 i( W8 c4 E
setxy random-xcor random-ycor
2 O3 T L2 I8 j: a" e* vset trade-record-one []7 y& }0 j4 s2 o, }* o
9 L( w2 Q6 L8 O. J" c
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
+ P5 U% H: Q/ d/ }1 \# n8 o3 uset credibility-receive []
! v _: W. f' `7 f% e' G; Sset local-reputation 0.5
0 ]* z7 E+ Z. T$ n' J Y: g: t, S" V- B0 Gset neighbor-total 06 s& P3 V$ Q% h6 Q9 g# T+ J- g
set trade-times-total 0
4 U8 E: \# E8 Q5 Dset trade-money-total 0
, C4 y1 X4 N) E8 ], G4 I% t! Rset customer nobody' @$ `/ ^% P, o; }& b" L
set credibility-all n-values people [creat-credibility]- |, [0 _3 b9 l: ~. D
set credibility n-values people [-1]3 K" G4 `3 A, u4 l- r
get-color# d# u* y9 E5 k8 U& h A4 x
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end2 h& |( k2 ^ P7 ^+ q
# d; u$ y6 R# S8 V: B/ fto-report creat-credibility
( y9 B9 Z5 t# zreport n-values people [0.5]7 h* G' K2 S* d0 O
end; i" V G; ^" x- p# m
4 S/ S0 c/ T( E `
to setup-plots
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5 l* l! y6 F) s _6 B" {& vset xmax 30. ?6 i) B. i3 b/ ]; j+ R5 }
9 ~4 m8 r% k+ j2 f& Z- R& Q
set ymax 1.0
" V, j/ a& [& v! T4 f! u- ]" g7 [* y/ z9 N0 L6 m; h5 U$ n/ X
clear-all-plots& p! _9 J5 D' k7 R; E5 q! a
* C# ]1 c+ k) L9 p
setup-plot1) w1 i0 g- ]' C( W$ b- e2 U
* Q6 H) _5 Q' R/ c% O; X5 F* nsetup-plot23 S) `; k: Q! f E% H( @
5 P0 _& }! q6 j2 b' d" ^
setup-plot3
4 m& D5 ]2 r3 i) h8 W; Fend. ]6 Z( U. g$ u' w
) U. u4 I8 m9 a; q
;;run time procedures
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to go
# D0 t" `; h, R3 k4 Z! J) k4 |0 K# c! I3 k B$ e
ask turtles [do-business]
" @$ D* Z+ ?$ gend
* M9 D& I5 d& z$ g
* l/ `+ `. L3 ^/ V$ w' `to do-business ( |3 w: g5 G4 B3 X9 ]5 y
* g* x: _+ o. y- ]# q
2 I' i* B# g& r4 _- X4 N2 C* xrt random 360
3 P0 v: U( s" S5 ]4 d" H( w5 G, `/ b J) Y& G4 G$ |3 e$ S6 ?
fd 1
. r# F+ D) _! U/ A$ x- q5 }$ a3 `( ? u: ^1 B( g/ @+ [6 q! G
ifelse(other turtles-here != nobody)[
" b, \$ |( V" x/ D2 \& ]. V. X. c( S) \! a" Q% m- K, T# f
set customer one-of other turtles-here1 {9 _& W: g+ i
3 a( ]/ ]$ T3 I: v1 L' {, B
;; set [customer] of customer myself
- J5 T1 w2 f' l/ F) Y4 Q+ K
/ A b* q8 t [. s$ Z% h0 q; w2 c5 W0 tset [trade-record-one] of self item (([who] of customer) - 1)
2 _* c8 D+ U8 o! X[trade-record-all]of self( g+ S: g: r- W3 D5 y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 Q! q* V: a5 T' {
7 n b$ Q/ L$ j4 x- {set [trade-record-one] of customer item (([who] of self) - 1)
" R1 {+ p1 Q8 n; |[trade-record-all]of customer2 ]( T1 L/ k& W
2 Z! w- @& N2 \ m; f' y
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))
+ {% U; [7 Q+ f& c
/ ]" b% H& g6 B9 z% C3 hask self [do-trust]0 ?( _, O" k* t1 i- Q- u( |
;;先求i对j的信任度
3 p ~5 V5 Z3 m; U, }4 p0 Q) l+ l9 {+ k$ Q
if ([trust-ok] of self)
! F1 t7 V3 n6 F) Y;;根据i对j的信任度来决定是否与j进行交易[
" C6 r4 U; X% Y2 s- Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, q0 |" w+ u+ o1 M, d# X! O
3 m7 L+ K" d2 b# F/ F, L
[
: ^; f, a/ l) W0 y; q9 m% k4 H! v5 v/ C9 H( R' X0 `! e, e
do-trade
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update-credibility-ijl1 m) v( f+ L) U k u7 ?9 G9 c
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update-credibility-list
% q4 A `& z8 \6 A# s4 D
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update-global-reputation-list! s# r+ _; ~) F( }+ _* l
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poll-class" x. o' G6 s* T9 S( I
9 [3 c7 w ?$ K
get-color+ k* c r+ }# T- x4 [% J
4 F1 Z0 _# i. \0 d! ?) F]]
4 ^' b1 F0 X& A% f; P
) q2 k* x" X! {- G$ C. z) p& S;;如果所得的信任度满足条件,则进行交易) V5 A% q& v" S" O) \
! a% |6 s @+ b& {: s$ M o& \4 E[. C; p6 m2 I* `3 G8 f Y
, h7 r8 C) G) M" }) x
rt random 360
" X4 \; A, `* `) T2 I( z
3 z' ^8 m5 t( h% ifd 1
# V. L1 V0 ]$ U, w! b, S8 o; W, [: ]2 U" X4 f1 m/ Y! e
]
+ b+ B* |( X ~1 M
( ^7 u7 z8 Q. O+ ?6 E; tend
7 C/ s+ l/ o) C( N; Y& v% }# j1 ]( w
. l- u8 M% Z# C9 w6 g+ O* z3 Fto do-trust
# z+ y; e2 Y$ _ s+ z" Q; M7 p3 Nset trust-ok False% q! Q5 s0 v% X; B# C0 G ]
: \8 r) j2 H9 H8 C
! _* }' H& D$ olet max-trade-times 0
) D$ h9 ?- U1 `8 K: F3 ^foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& @5 z$ O6 ^6 l& B9 Z8 mlet max-trade-money 03 b- o I/ z, p. G9 y7 F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" H1 j0 g& E1 Y- W8 J4 Klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 h4 I H6 A9 e: G1 Q
4 T9 k2 G3 c0 D% M7 Q4 T8 r- v. m2 t; f! e# i( i2 o. K5 S
get-global-proportion
8 O. `* O) t0 c9 }let trust-value
4 V3 R+ D& T- Z! s( Q; T- ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)7 c6 O9 |3 o0 V- b
if(trust-value > trade-trust-value) u; q. _ X1 ?$ J; p" F
[set trust-ok true]
1 i! _: U" u. K& W# Fend) S) P5 w! w' W" r. c
7 X+ N6 l' T8 ?. Y" Wto get-global-proportion
7 f' x! O. E! q4 H( Hifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 a8 d. U' u) Y1 t4 u' s, _
[set global-proportion 0]
1 E8 Z0 ]& u6 e" z! r+ U' \[let i 0
) J" d, j! ?3 x6 f5 ?& klet sum-money 0" n1 `/ w" Z0 t' q6 \- O8 K5 M9 a
while[ i < people]
5 S8 {7 O# k [[7 x$ }9 f, x B/ h3 t4 `
if( length (item i
8 f) M& _7 g, K: D# M& `3 P3 y' J$ g[trade-record-all] of customer) > 3 )
3 L: @% @( B Q: a[
6 T& T0 `3 x5 d; D& Wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 |7 K& G- ~! c, c% B]
3 s$ @$ B! W2 g: @7 ^5 {( g0 B]6 E" a5 g2 q1 L! c q) }
let j 0
( B# @& e3 r, ^6 {) ylet note 09 ^5 h; j2 T/ U6 ?
while[ j < people]- T9 \, T5 G5 c/ Y( S! k( y0 d
[
# X. b+ k j0 O( Y4 aif( length (item i
2 m) B$ ~% ?/ a, ~* w) o3 R) o[trade-record-all] of customer) > 3 ). l% r8 G; G$ ^9 }
[ ?3 k, G& }2 ]' X) @+ q7 v3 D
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& |; |0 J; ^4 v0 H: {[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* P8 C6 f3 a7 w$ v% e J[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! Z% @' j. g7 @( H8 H& q
]% F4 c# K3 B7 p! }: T9 k" R1 v4 `0 K# M
]" R: c/ o- J9 h1 _. X' j2 }+ i
set global-proportion note Y$ o$ q4 D9 v
], |# A0 g0 g: W/ v: S
end7 M( d4 v8 Q5 P/ C
0 u! J4 H3 ?& o- S: Y9 M8 d. k) }) ito do-trade
- |; I3 U! l8 v, u& O;;这个过程实际上是给双方作出评价的过程
$ ?* C, `6 j4 }4 R, E" l7 qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& G/ K8 ]& B$ Y3 R( V6 c' ?8 ^# r& p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, i7 I% d8 D8 t4 R8 I! w6 l; yset trade-record-current lput(timer) trade-record-current/ ^& K, } b L6 r: l" y
;;评价时间* o7 y0 d' e( C# l
ask myself [$ \9 a0 Y9 _! l P
update-local-reputation9 I7 m! v5 u8 e: R! z, H- r, H
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' X ]1 v* X" g7 N6 |
;;将此次交易的记录加入到trade-record-one中
[: e# w; t6 qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! ?6 }; i, S$ G
let note (item 2 trade-record-current )! z7 p0 F- l0 X1 W
set trade-record-current; s0 l+ d) ?9 I4 R5 T0 \
(replace-item 2 trade-record-current (item 3 trade-record-current))# Y/ _. m* X3 w5 R/ i6 S2 l
set trade-record-current
3 p b5 m* G) N' X+ I5 r0 s, d(replace-item 3 trade-record-current note)3 X# U* r: s- f" a0 k
) ~ a+ b. O( Y; \, A5 o
`3 y( w0 ^" K1 V% n) nask customer [
' N# P. ?% m% R- z: {) Y% xupdate-local-reputation2 n& e. e. l/ k5 \- U
set trade-record-current- }2 V2 [! @% n8 n$ I4 P, O8 h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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" c* Z5 h+ m1 r% E& E; y
) I+ G; q9 V; g0 Vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 P3 ~! P/ L9 B# Y# \* P
0 ?* w, b- d# O& @$ ?7 J D4 Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 y: Z- A4 {+ K6 B;;将此次交易的记录加入到customer的trade-record-all中
- q7 c ^+ \: w: n: v% ^1 C: {$ }end; H( J" b( K: K$ b- h9 D) q" _, ?
( A% C" Z) @3 G2 [) f$ a
to update-local-reputation" [ o$ [- U6 {$ @$ W
set [trade-record-one-len] of myself length [trade-record-one] of myself
: n; @' U7 r. q) Z; ^# B& E% E* R; j/ B9 \$ N& |
, K) `# `3 Q, i& a# B
;;if [trade-record-one-len] of myself > 3
( w0 _* b5 p6 yupdate-neighbor-total3 Y% S: d% U0 ?- E
;;更新邻居节点的数目,在此进行( d8 u) N' F' z. M }( }
let i 3
4 G. ?: B7 Q" O" o! ylet sum-time 0
! k6 I8 \- l- z7 ~1 D+ Y' Jwhile[i < [trade-record-one-len] of myself]
; r4 H c( ?) f h[# [+ I5 [( r1 d" P$ k
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 ^$ h) e. Q, [2 o" t
set i
& Z5 T- x1 A5 n( R( i + 1)
+ o+ b/ s/ x& []' Q$ |# B. c% s/ v! I& l
let j 3
" a7 R- y3 |+ @. S8 V; Glet sum-money 00 ^0 U. k$ {, |) Z# n- z
while[j < [trade-record-one-len] of myself]% o/ G, l; d7 r3 c% G8 L
[2 ^. z5 I: f% T4 x- O$ 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)
' I% C* x4 [0 ~set j5 Q' w7 Q/ }/ w* s, a: X
( j + 1)9 G1 J; i$ x1 x5 b
]
! r9 y- n- C" O7 [) Q! tlet k 3& |6 z5 ^0 V7 G% n* }8 F
let power 0+ ~# [6 E& m6 l( {2 I3 X; p
let local 0
- z& B! L2 {) [0 X/ W8 Owhile [k <[trade-record-one-len] of myself]1 K9 F ?- }5 T+ t- h+ H1 v
[
8 M) G: v( V5 ^4 iset 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) 3 D- h$ i% q9 V! G* t: X+ s& d
set k (k + 1)
+ V' ?% V5 @# P# L+ S' _8 P]6 \( b8 }4 N3 Y
set [local-reputation] of myself (local)
% f! h, B' r% V9 o$ g2 jend
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to update-neighbor-total0 G. \6 J3 F5 T
w- Z* z! F- s9 u' V
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* d6 e. J6 k2 [5 Y1 k& \- s/ C( j6 v! A) ^8 k4 N6 d
! B! E* M$ ?3 q/ u% ]
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。5 W& f, i h c& n! C @3 r
let l 0
0 P2 X( o' L+ D+ d! _+ W' J9 E( u8 twhile[ l < people ]
. J8 h. r" d( j5 s7 @;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 d+ n7 }: d; S6 e
if (trade-record-one-j-l-len > 3)& q0 A. K, J9 \: n0 B( P$ k
[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* `3 g! r+ X( {% r! }9 G
let i 3
+ l$ G w o2 O blet sum-time 0/ d: X$ r/ N. i. Q3 c
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ I% @. U! [+ a; _# v' i: A
set i
& D1 J1 X1 S4 T( i + 1)' L3 k+ `2 @5 m0 W
]
4 t' B$ y' \8 ~+ ?let credibility-i-j-l 0
|3 T8 U' T* F( V' D. I3 C;;i评价(j对jl的评价) \2 e+ t. Z) o: R
let j 3
( i/ z, ~6 q8 q1 elet k 4
/ T' ]" C. |! z: |3 C' W3 g4 wwhile[j < trade-record-one-len]2 _7 W4 G1 T4 v" e1 D9 n
[$ j: L$ H' X5 } d5 K/ O) G
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
* |1 Y- Z# s2 a" Vset 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)3 }1 L( C- r* k
set j0 l8 `; M+ W: T" J4 R4 K+ M
( j + 1) y" V( p6 m, K0 l; u. `2 f/ v3 w
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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 )) s r2 i2 p9 t$ O
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( J, V% @7 a' _/ c! V1 X/ T/ qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 k- F+ ~* D0 w; _. A2 x# R" w, @5 {;;及时更新i对l的评价质量的评价
9 h; l) F: N3 H; Z8 f9 uset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] y7 `+ b3 N: H; M! R+ K
set l (l + 1)
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7 p O- z6 z5 T* ~8 y1 Nend
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3 K# P6 Q+ ~7 m: _/ Eto update-credibility-list. }+ s1 y" `# J& |
let i 0
7 `5 u: A$ L" bwhile[i < people]3 |1 u& @! g& ` r8 D/ C* |& F
[
/ J2 v6 o& @( M; l3 h3 U' Dlet j 0
3 E! a5 j0 j N. u+ b3 qlet note 0- r% O# O$ N/ I" q" G' H6 Q# t
let k 0
# p' ^7 b( p; |8 ^7 w;;计作出过评价的邻居节点的数目; N1 b" n G* o9 T# Z" I# V% T
while[j < people]
% r9 o: b) h' R! c- h( Y" f[+ }" J, k5 t, E# [$ ^9 M2 A7 z- q( F
if (item j( [credibility] of turtle (i + 1)) != -1)
4 ^* L1 t- f3 Z;;判断是否给本turtle的评价质量做出过评价的节点
2 k. l& w+ P; U6 A" X' l0 R3 a$ X2 o9 ~[set note (note + item j ([credibility]of turtle (i + 1)))
& S1 |; N* e; c3 U;;*(exp (-(people - 2)))/(people - 2))]
- L3 o- ~6 u. e. L3 ?( X0 Z) R; bset k (k + 1)% z4 m) |1 T- Y& Q! k) _! W
]1 k: b Y# R' Y6 N
set j (j + 1); A9 a6 P1 N5 @7 @ _: J
]+ E2 F, Z7 @2 i! P/ D4 O( _8 K# h5 ~
set note (note *(exp (- (1 / k)))/ k)
1 o3 U9 O0 Y( [$ ]7 {set credibility-list (replace-item i credibility-list note)0 A5 E- N- t/ _, y" d+ H
set i (i + 1)* v9 p0 X( I0 r
]
6 z5 R' G8 F6 y* @end1 `) Y* x2 ]( u* P* k5 D; c+ v* @' }
2 z) T& E/ }% N3 n
to update-global-reputation-list
5 @$ o9 ]8 i9 dlet j 01 [0 s9 B' E& \$ D6 ~, V0 V$ u
while[j < people]
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let new 0. L& t& ^) ~, S% z1 ~& k* F
;;暂存新的一个全局声誉
3 a, i, \. S k' d. e2 Blet i 0
- G4 C9 i% d4 ?1 z2 }% o2 _9 k* wlet sum-money 0
# _8 _' O0 P* zlet credibility-money 0
& {5 R/ y$ Q( U8 s8 Vwhile [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# R$ c7 u: x6 F8 G
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ i9 {1 F" B* r+ i
set i (i + 1)' L% g& F( H$ F! n! z1 h z9 c
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let k 0
5 R k' {6 F8 \: n" S; h) B0 Ulet new1 0) s0 M$ x2 o" t6 G9 n# o- w4 d i
while [k < people]
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- \, N0 p# L4 s# vset 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)1 l2 L, i' l5 \+ B7 g
set k (k + 1)- Q) T( r/ x/ n5 @
]
0 }+ R/ J4 t, x' \- jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! G: {: B1 K! f( W& I$ k7 _) rset global-reputation-list (replace-item j global-reputation-list new)# v% `5 j) E' Z/ ]% ]4 d
set j (j + 1)7 q" b8 f4 ]$ V3 e
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end
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to get-color
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/ \/ E! j3 {. h; j7 Aset color blue
5 ~% ^/ j8 q$ V i6 H3 W4 Aend
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3 P `, c5 ?5 ?- `to poll-class7 W; |* K9 J' J7 v/ \4 N R
end
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to setup-plot1( d5 l {% n0 Z4 Q3 p, A
, M) A0 _" p# p) h$ @/ I
set-current-plot "Trends-of-Local-reputation"$ [9 R5 V5 x7 ^1 K% n
8 @# J3 U# Q' T$ [$ V8 z8 m, `set-plot-x-range 0 xmax; f4 n3 e; u1 W. ^1 f+ ]2 o
/ _& G7 Z. R' @$ v8 pset-plot-y-range 0.0 ymax
q( \5 z% ]; g$ N' X0 ]end0 z) [7 o! n% C4 S9 {' M: v0 V
- B+ j! [( N mto setup-plot2: X H( G/ g* O2 F7 Z5 h" g
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set-current-plot "Trends-of-global-reputation"! ^% D3 s- ~" r
9 r- a% |8 c" S' p- a- a
set-plot-x-range 0 xmax4 z# h% W% Z; v: I( F
) K# L& H& \' P" K% t2 a1 }# ]set-plot-y-range 0.0 ymax
+ E" A2 y7 g& c6 zend0 }$ } H" W2 Z! \' I+ [) _* o
4 w, O6 N. H$ l# l0 w( T- Y6 [to setup-plot3
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6 D' X2 Y/ u/ [. i5 Cset-current-plot "Trends-of-credibility"
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1 B3 H% ]) W. l, N& Tset-plot-x-range 0 xmax
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) q! ^9 a3 L% r6 I5 Eset-plot-y-range 0.0 ymax; Y3 Z: s8 M" V" r
end
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to do-plots" a/ ~! \$ I) T, i8 z
set-current-plot "Trends-of-Local-reputation"
. h3 L, S6 j; K# F/ z) |& Y4 oset-current-plot-pen "Honest service"
7 n) q6 |# w8 jend1 {6 F$ k+ b& I! {
) N1 f) m4 M: Z1 c0 U( X/ O$ Y+ h[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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