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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 I1 _+ {( r, s' zglobals[
6 s. {$ Q1 r* R% d2 S$ O- Exmax% A( k. T/ O; I$ ? D
ymax2 X5 d5 {* p# q
global-reputation-list8 m) k% G0 H7 \
! B3 W# y) v8 T- q;;每一个turtle的全局声誉都存在此LIST中1 [: k9 _, `- B5 b
credibility-list
+ s; G9 R- }1 u;;每一个turtle的评价可信度7 A2 z9 D1 Z& T, d
honest-service
8 d& o) Y+ L0 P% o, Funhonest-service) s* [( o8 r! c; F4 R
oscillation
' F9 O2 q4 C1 O7 i% Q# k( a' _# drand-dynamic
( v j; t) \7 o1 e8 ]8 z; q5 ^, M2 f]
5 O+ C' e2 e4 |* t" E: O) w6 X, ?4 m1 ^6 z" [% b V# w* h
turtles-own[
6 W8 h! f+ Z1 r9 ]; `8 Jtrade-record-all# G( X& b1 Y- N* l* q! m4 h
;;a list of lists,由trade-record-one组成
( I o. H; t% B4 v9 s, Gtrade-record-one
$ Y t% \9 z) c* k4 \;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, s8 O$ X w" E4 g
" v( v$ E1 g, e$ d8 W! w4 a8 _ u;;[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]]
! }8 A, G; b* a% C# j5 y# p g1 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]
" I8 A: p9 `; `+ ~' Bcredibility-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list6 U V5 N- P M2 k! ~6 ?: m
neighbor-total
" i, n4 q4 o3 E1 d9 [* ~;;记录该turtle的邻居节点的数目+ ?7 ~/ C& s% f4 d! O
trade-time5 y5 Q* d' [+ j% Z7 b- w
;;当前发生交易的turtle的交易时间
' Q$ E* y0 a/ _$ B: a5 }+ H1 l; s! |# qappraise-give
; `! ^+ S0 q4 a6 c' \3 t;;当前发生交易时给出的评价& d4 o+ J# q0 }) Q
appraise-receive9 r$ B! {* X2 D+ Q5 ?* G5 f+ N
;;当前发生交易时收到的评价
5 I) D8 t5 C9 X. r/ F6 cappraise-time
7 L6 Z6 ]$ Q$ R;;当前发生交易时的评价时间4 X; T9 r+ F, [) f1 m
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ Y! o( q3 Z( Xtrade-times-total
& n6 z7 f* z" [8 A9 \2 y;;与当前turtle的交易总次数
2 U: M- U& n: w' ttrade-money-total
, e- I4 ~; e8 C/ ]* |( J;;与当前turtle的交易总金额7 c& A3 o; H$ I
local-reputation3 a% {& [# d+ c; Y4 r0 B) d
global-reputation+ R/ L, |* k7 b. A6 q
credibility
# c" L7 ^) D& o5 D5 L1 J;;评价可信度,每次交易后都需要更新
% t: X+ M u7 k6 R5 X! X# F( Y9 d/ mcredibility-all
# v. l. a! ^+ a% v;;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" h) P3 V8 I3 A5 o! b6 c. G0 {; q
- Y+ l0 w2 `% U0 L3 q& A, N;;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# S* L: g; P" T) J
credibility-one
+ {9 {' ~9 c( Q2 W1 [. ^" r;;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7 x: @. c* \ X+ u1 G, Q
global-proportion2 \ R( |( Z7 ~, X/ n* n
customer
5 @( |8 I+ v% b, M# y0 v0 Y% tcustomer-no0 S5 A# v- F, m% f8 ]
trust-ok
+ e+ L7 D7 _" v1 C- Z4 R& q3 G* Atrade-record-one-len;;trade-record-one的长度
2 F2 u/ L( |* ~]$ x, a# g8 Y3 l g' ^
& z+ o0 N/ |0 H3 y
;;setup procedure5 O- [5 `3 h% b
$ ~% u: B3 A- l9 o: s
to setup
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ca) @8 V! c, k0 F" z0 C
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initialize-settings) X: o3 \9 L/ A. X; [6 H) K. f
2 C4 J" X7 f5 Dcrt people [setup-turtles]' Y7 V3 f. W0 k% t
1 x+ \/ y# m' _reset-timer
% K% s6 R, q( Q2 L# b
9 p' ?! a. D; F4 M _ K6 H2 cpoll-class
5 ?# s; f% u9 S9 {! J! a( [
* N$ Y h+ k+ A# W/ Esetup-plots7 w/ j* `; I7 G4 `1 |! y; L
& k" }) v+ \, {6 f. E
do-plots3 Q |; L) x6 n
end8 }' q* L$ j `' Q
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to initialize-settings
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set global-reputation-list []
( s( |* R9 \8 j1 ^; X" ^$ t, s) ?9 I% s: I3 }, e+ i4 ]1 M
set credibility-list n-values people [0.5]
+ Y- N( g# @5 n2 _# o' C+ g" l/ u7 A; k8 J! t D6 `! g" ^
set honest-service 0/ {7 c; f6 e4 |% ]1 r
9 s6 ^5 ~4 n- }' l7 G; m }set unhonest-service 0- m! ~* {9 t9 V5 r8 ~
1 Z! t2 p. k" k* m) J2 A
set oscillation 02 S/ H: n0 q3 k6 F& O4 k
) o7 C+ Y1 a6 _set rand-dynamic 0+ t' S' ^3 P' v* J' I
end
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to setup-turtles
* F/ |" J" d# D: d: Tset shape "person"
- z5 b+ ^# l8 O3 G3 a* gsetxy random-xcor random-ycor
# l4 s; [; y; Rset trade-record-one []
) ~5 Q) p& j8 o9 ~% F: x$ m6 K- o5 E! I* k" e. R1 g* [
set trade-record-all n-values people [(list (? + 1) 0 0)]
" x: }5 P7 y% P/ Z- y. ]- X" [6 p4 l& R4 a) K3 e+ O0 J5 a
set trade-record-current []' z9 l0 [/ ^- I6 v7 M, P, {
set credibility-receive []1 W/ K( R$ x+ @0 t P6 q
set local-reputation 0.5% S& g; T/ w( W0 |" a; c- b
set neighbor-total 0
8 F: ]3 T2 x+ B# \2 `/ pset trade-times-total 0; p4 y9 i. _2 J! b% S* k
set trade-money-total 0
- P" Y: q1 |# [' M# E. yset customer nobody. ^/ m. Q3 w1 |% F- j0 D9 }1 r5 z
set credibility-all n-values people [creat-credibility]
l3 v; d3 m1 x9 zset credibility n-values people [-1]5 S) F) f* a; W9 g- n( g5 h" K
get-color' H F4 H [ k
9 z) R, a5 @$ {: o x1 a
end
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to-report creat-credibility8 T$ g# B$ M& z `( b$ J: V
report n-values people [0.5]
7 w, A" [, o; oend
2 s t) W. n$ H9 i$ r) O1 K9 l
O) Q: x4 ~& G' J5 l8 tto setup-plots
0 c8 ]7 {+ T; V f
8 W5 o/ [2 @+ A4 J- x7 zset xmax 30$ z: ~& c v0 Q2 M; z: f
, G |5 o; P5 |1 b
set ymax 1.0
$ r1 F1 e" w; R* N5 p% e4 e0 n/ T6 K c3 ^5 q- b- W5 q0 X
clear-all-plots
3 p, x& M+ V" H1 d9 ~* B3 ?
6 y6 e" q2 ?' {5 Tsetup-plot1
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setup-plot2
" F B n; @. y
4 a& @/ k( Y: ^& M! w0 P: R! M. {/ ksetup-plot3# [8 ~: k: g! d+ @& s% S5 R5 {
end
4 v q/ S0 Y8 F; j& g. k
, j' y) b7 u; Y3 m;;run time procedures$ U, R5 d2 P x7 q: b4 u
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to go
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ask turtles [do-business]0 U. b9 w' m! F! M% A: P3 g
end
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; }$ i6 v0 U1 _4 E/ K# v8 O5 tto do-business % O. V) C& h3 w% K! r
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rt random 3600 f; S) V4 D& d7 K |/ P& D& E
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* _3 B) L8 N @- A' G) M y( T+ }- ^! j6 W0 _
ifelse(other turtles-here != nobody)[
R1 X N3 E- {2 o, [1 r9 \6 \6 U2 d5 o
set customer one-of other turtles-here( \" H" I9 @& p3 F. E
; d& @& Q2 l1 N0 Q1 X;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)) T- p) Y! ~5 _0 e& d" H5 n
[trade-record-all]of self" V( z, }5 E6 X* O: c+ m
;;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)8 G# K, Y3 R) K3 i7 v
[trade-record-all]of customer( L9 Q& K4 x, g/ Y3 l$ k/ N& v3 C Z9 d
% f" v% R! G$ I; k" ?( P3 u* qset [trade-record-one-len] of self length [trade-record-one] of self: O( `! k- I5 }9 O' e0 J" ~
* j% A' ?* j3 E2 t% \: T1 H" `set trade-record-current( list (timer) (random money-upper-limit))3 c( i6 Y7 ?8 L ]
8 _7 h7 `" Q' v2 yask self [do-trust]
9 W/ E6 c6 z6 J;;先求i对j的信任度
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if ([trust-ok] of self)# K% Q1 ^+ b2 O1 W. ~% O9 O
;;根据i对j的信任度来决定是否与j进行交易[
$ B1 W" |# E" D% X& ^2 h% ^. Wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) ?( p6 @* ]" E( b" n9 [
# G5 W( g. X% h% f6 l
[% @# D Z9 h" X. ^, R. X7 ]; }: u
( i" x0 s" \! k6 ^3 Z) N
do-trade4 h& ?+ T! b" R& ^- [+ J
* Y# X4 v/ y2 hupdate-credibility-ijl
- v; E% Q$ y1 {) Z; V- s- ~# A1 y
update-credibility-list
* E2 d6 N o+ \ a& d
& \7 `( r0 e" r" d0 O" {$ [$ f. `! q9 h9 ]
update-global-reputation-list0 F- j0 @2 I, y; F
C/ r, S: G9 W
poll-class% K+ v6 W; ]- `5 }7 b/ p- |
7 G. z1 O9 G5 m& z0 Tget-color4 F( W" J' K3 F3 x) S
- w, K# R0 m; p; g& C }
]]- h( m; m* q4 a* F% N. k6 q7 L
0 E8 K" ^" l3 z I) W5 j3 y6 @;;如果所得的信任度满足条件,则进行交易8 w3 C1 _/ h; Q; p. u
* S0 x, a: a* V l9 v& j/ {9 B/ w v[0 K. `. W$ c$ O( X+ r/ p& F" N
: W0 A) ~5 {# t+ g7 a/ Drt random 360
4 h! g. G$ {+ X) D3 j: k( z3 ]% u1 v1 v K/ O5 e
fd 1
5 f4 A [8 H* U j! g7 S8 C) W* p( R2 ^$ B# l4 M7 K
]
1 f* d# _+ Z; h" t% D; A/ N, \
2 f7 \) _% Y; E; i! Jend
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to do-trust 1 m9 Q- N3 J6 N/ ?' x- i, K
set trust-ok False
6 H, e, |- c8 r# S* U2 _
$ v7 u& h& O& s+ G- y/ } x, J8 X6 x2 X3 b. _1 `
let max-trade-times 0
, c/ y3 ^; a" U5 Nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( N# i; {: [1 u `6 I4 H
let max-trade-money 0! K( b, K: e1 ]. u3 r
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# S% A" C* x% j: P' c
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). {0 c7 v4 L( s, I% g0 f
2 e$ t/ i) C' O. c$ H: P/ U
+ J( c: z% V4 g d3 i5 Nget-global-proportion2 V0 }/ m% C5 Q3 o
let trust-value
0 l0 e9 h$ M& Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list) _4 \+ k5 Q( I+ D$ A7 ^- y: |
if(trust-value > trade-trust-value)
$ W; y9 F2 p5 w$ p$ H& i( x& p[set trust-ok true]3 M$ o* Q. \1 y8 h2 O5 S
end: O# }4 H( G* S
9 q* E! N& d4 o5 Q% ~
to get-global-proportion
, \5 e* v, D6 Iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 ~& N7 o4 C. I% m- Z[set global-proportion 0]0 K" `& r, ^7 Y1 \: D' v7 x
[let i 04 H+ P: R4 w7 _7 k( r8 |
let sum-money 0# A! C, ^' @* H2 J+ _+ c5 g
while[ i < people]# A1 }# z9 n1 j$ m) o7 @# d
[' ?& b9 r6 J, q4 t% }2 q
if( length (item i
( h: y8 O- q7 g0 |7 G8 L[trade-record-all] of customer) > 3 )" {+ v( w. a2 |7 [/ Z% T$ z8 a% I
[% P; d) U- `- o( E- W0 ~) G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! F' {0 `8 v: P]/ C% ]4 R* c5 D n6 a# W
]
7 d) Z: ]8 `6 h3 j. P# x6 Clet j 0' \ F: m. h0 i, y4 K" F
let note 0
1 g: |$ r9 s6 a+ X+ Z1 }while[ j < people]
% C$ ^7 g: V0 l- V! T: }[/ T7 F3 | S) y3 G3 n _7 L
if( length (item i4 a! r5 L3 z1 q$ v, V
[trade-record-all] of customer) > 3 ) Q2 z4 _' u7 p' o7 S- R% C T8 Y* e) O
[
. n- L! s) Z) U3 y# R/ h0 u& n- Jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); U; a7 a8 r8 g. P: |9 G- i
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# n7 |* J) {7 H7 t6 u/ |# c: U[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, e% l4 O# }8 d5 a# ` c9 j9 C]8 S. `. t! T5 d) {# l0 d& D* ~
]
) n/ ]9 f5 ?0 E( i3 uset global-proportion note+ L9 p' f" {5 N2 v4 q0 J, c+ {
]
; o2 k! O! b( C2 cend) r2 ^( `( y" e' W9 o l, U) X9 n
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to do-trade
3 u' j; }" x* e7 g- W: P' q;;这个过程实际上是给双方作出评价的过程- `+ Y% O# |1 I( q! g* F- P5 E
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! R0 r5 _5 O3 |7 D" [! a% J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# C( n: n- K% C- h: ]) H; [( nset trade-record-current lput(timer) trade-record-current$ n6 G0 [, @* b9 {; y) f
;;评价时间
$ V- F; d$ E Lask myself [7 a; z) E. H$ ?) g3 \
update-local-reputation+ u. P, ?& H$ ~+ ~1 G
set trade-record-current lput([local-reputation] of myself) trade-record-current: D3 [0 c8 j$ j( }
]) f2 S% g0 b$ z$ | {
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 F2 U& F3 b0 L7 ^) u
;;将此次交易的记录加入到trade-record-one中( L0 J' r- ^7 ^& M* z- p- P! Z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 |. I4 I: R4 [; n W9 h
let note (item 2 trade-record-current )3 H ^, v$ a! W |2 C
set trade-record-current
% c7 K9 \! j. e& K. }- p9 U(replace-item 2 trade-record-current (item 3 trade-record-current))
# @) ~+ R O- Z3 A1 Qset trade-record-current7 B8 j' ]! R( E% M m
(replace-item 3 trade-record-current note)
0 \1 Q% |5 l$ a% c7 N) O0 a! \% {; |+ \& I1 i# W# N2 g' ~
5 z9 Q4 W2 b6 k- H4 w- S S
ask customer [
' d2 l" U1 H: y+ b& Q2 H2 Z Tupdate-local-reputation1 y4 z" J t5 K9 J0 ^* B" c
set trade-record-current
! H3 A' J# }, N8 q0 L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : m; j8 S$ n* _- d/ g
]
. H/ Q% |9 x4 q+ r1 f6 ]0 @9 k7 _! {! m! r/ J$ ]" W% S
' e! q) _) Z; O: x3 l* |9 ? T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 k6 E( ^. `3 A0 A% i; Y9 t9 |# H. U4 n" A7 A+ j
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; {, Q2 }% w k" }; q i& x7 d T;;将此次交易的记录加入到customer的trade-record-all中
: [0 e4 f0 k3 H6 |end
$ W9 y3 |; s4 s4 O5 g" R1 `
* U5 Y) Y6 p# [7 \3 Uto update-local-reputation6 l4 I4 S: i) f* w% a
set [trade-record-one-len] of myself length [trade-record-one] of myself
; r1 L" |" L2 ~1 ^: {4 b6 y3 j# V4 p6 g
5 r8 e* Z8 j( j9 \" \5 v s( ]2 }
;;if [trade-record-one-len] of myself > 3 + s/ G" W4 [# c5 w
update-neighbor-total
9 E/ d+ ~! I8 J& e% o: O;;更新邻居节点的数目,在此进行
/ u: m/ P* \5 U- `) Alet i 31 M$ y' t# q& \2 y
let sum-time 0" L# [9 v' ~8 O5 E9 s! u- y
while[i < [trade-record-one-len] of myself]& {/ ~0 T, t( d$ l {
[
+ v; B% | o& b! a7 A5 g" y, vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), @3 l5 o" l( g7 M( r1 i
set i8 y, l4 F% \/ @ D
( i + 1)
" T2 R( {, o3 H: V" J]
- B" Y7 i& |8 n& H1 elet j 33 o7 @6 N8 h+ O7 l! K# B
let sum-money 0
" R8 r1 U8 m2 u6 @ R$ w5 mwhile[j < [trade-record-one-len] of myself], ~2 U) Z1 J2 }4 ]# a' }
[
! C* M, d L3 G( e$ N9 B: q' Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)+ c. J% ^9 ^% K7 j
set j
* P4 T8 _; ]6 d3 ~( j + 1)# {/ O: p& z* m! A: P: I3 n2 ]3 R
]( D% d1 s0 L: X4 Q* j; L) w3 r
let k 3
# k# F/ d, p3 ?+ g8 X7 P! I& blet power 0
0 e# V+ Q, Q" l ^( m" D* ]2 \! J/ Plet local 0
. d" z$ N) K+ ~8 \' P) r' `while [k <[trade-record-one-len] of myself]
+ X- O; m+ {# }7 f[3 V5 }- `3 P8 Q# J
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) 2 _8 q" h; K" m7 W I
set k (k + 1)* {5 t- }& e) G( `) w
]
# X: m! I b2 V. N) |9 N. p, ^* yset [local-reputation] of myself (local)
9 ~5 s, p- j: v3 r+ E! r/ zend& p% Q0 K9 K7 M$ I
, M# x5 m8 e% o4 b/ t3 Y9 ? [! p
to update-neighbor-total1 a: ? _* u8 B8 Z& F3 H: |! `' `
' V$ a$ p' D) h2 K1 @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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8 l8 x- E f/ k% }* _0 @3 n
2 W: f: ]6 i& E% Mend
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& U4 k9 N. W* n: M2 l! Kto update-credibility-ijl
% [1 P/ }1 E& M7 \( S9 |, S1 ~# b7 V6 c8 r% U( D3 @, C! 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。! j# I- m" n- P& E
let l 0
" H& t0 x9 B+ R- p& g% Nwhile[ l < people ]# y5 C( K/ H5 u7 I6 E/ Q( t9 K: k
;;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: @9 u$ k, Q; D- L9 V
[
D3 `) U7 W# n5 Flet trade-record-one-j-l-len length item l ([trade-record-all] of customer): Z) x3 i) T. R. h& k( @9 c' {+ v# P
if (trade-record-one-j-l-len > 3)$ ]: H) J, |) s) y+ o/ D
[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/ E/ o+ V" L# }4 P6 L, M4 h
let i 3
( B8 x. k5 v1 a1 i/ Llet sum-time 06 r6 ] q/ J% q2 N' o* W" k/ ~
while[i < trade-record-one-len]2 J5 t/ c2 G( H& r. K( s+ d) }
[
2 ]" g6 R! I9 U* Z( O4 ~1 B( Kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# G% r1 c0 j) \& {set i: g0 X# i) ?; s) N1 g
( i + 1)8 e4 N7 R( d5 S. z; f2 E
]
, I+ k' m/ K1 t( ]let credibility-i-j-l 0
5 X2 H6 f, _8 ?/ R;;i评价(j对jl的评价); w" q, ]. Q2 ]- W" M4 J! \% e. Z
let j 3
3 K3 |% F5 q5 ?$ G+ M; n4 Xlet k 4& \' r3 p2 v3 ?2 }
while[j < trade-record-one-len]2 I( h3 o) s' w: _8 Z. A
[. |/ h9 E5 l/ \7 `
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
, [% Y" t' p+ G+ i# 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)
' w0 Y/ |+ Q2 K& n( n' \# l3 aset j
4 K f8 B, }# G$ y, f( B( j + 1)/ u: k3 w) J$ p: K6 R
]; b* t) L# }% s R0 {
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 z- t, L3 g. b7 I
& j$ b1 j' S& k, a0 @
. M& A2 f) y9 v- Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: `& T# P. N( J2 P @ ^;;及时更新i对l的评价质量的评价
5 [9 q# s& |1 y: U- Z; w6 Jset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( a. L* x, |2 ^& v3 J- p- p/ K5 Aset l (l + 1)
8 U! a7 E9 j7 \0 S3 P; L7 S8 Z+ y]5 v& D7 O& p+ a* G9 l i% D
end5 x% d% a$ k1 I: q1 X
8 |0 N3 m! _7 W6 l; x; n
to update-credibility-list7 n" m3 l- ]3 r/ Y6 v& r2 x# d7 L. Z; J
let i 0
7 i1 K. V: u3 B: Uwhile[i < people]
2 r4 ~$ u; c! q4 r; b3 }8 f[! `. b) D: ~5 r, v" x; x
let j 0
; e1 P0 \/ S U) ?* ^1 {let note 0+ o) E% @- C4 ]! Y
let k 0- A* Z' j5 D8 p
;;计作出过评价的邻居节点的数目
6 z5 \! L5 }3 n2 |' K" zwhile[j < people]
8 Z! {9 F1 h2 @, K' S[
6 `- q$ w7 c; g" ~) x- q$ bif (item j( [credibility] of turtle (i + 1)) != -1)
9 z& b' m% o8 ^! h# b1 y/ u;;判断是否给本turtle的评价质量做出过评价的节点
\" b( N- V0 O' O( j[set note (note + item j ([credibility]of turtle (i + 1))). I" Q7 o6 e: q! S5 {" ?/ s
;;*(exp (-(people - 2)))/(people - 2))]6 ^( D1 H$ a9 g; J: ^6 g% T
set k (k + 1)
, g0 e$ z6 f* U9 ~) i5 W! @]5 c: }* S8 D2 n$ s
set j (j + 1)4 h* z: f( s- U% A6 L
]' G8 t/ F; }& I5 h( V3 _/ [
set note (note *(exp (- (1 / k)))/ k)- q% `+ l* n+ P
set credibility-list (replace-item i credibility-list note)
+ j/ a& {3 v% I* X5 v- xset i (i + 1)# z2 g4 O$ o5 I3 n0 J8 j1 @
]8 ?2 l& L# S: w$ p8 c/ P _0 Z
end7 k, m8 a5 T% z" L
7 U( I2 B8 j# Bto update-global-reputation-list2 U/ i- W E" h, u) Y' ]( Z# X8 M
let j 0
- R5 I1 n! C# lwhile[j < people]
/ W# ]6 {2 ~9 `7 a; v) F( e$ u& c[! J' ?( g" A1 R% r4 t; F
let new 0
9 C: N( B/ o; s; N;;暂存新的一个全局声誉: N0 r' M+ I \# ^5 R) B
let i 0
% {& X% d* ]3 F: Ylet sum-money 0$ U" P! @, Y3 i; M5 K4 \* x5 H* {
let credibility-money 0
, X: O% V g* T$ @6 lwhile [i < people]! P* X7 l( ?5 l3 L
[% \: N1 l3 C5 ^2 Q; E
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 P5 d7 D& Z" v- P6 j$ E- m9 xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 {+ H7 K& t% A) K
set i (i + 1)
. U0 ^9 e- W# u( e]: k1 i! J2 \, R8 X
let k 0& F1 g& Z* v, L7 u- v. }3 |
let new1 0
& |' h+ X0 w2 @$ {5 T4 wwhile [k < people]
# C* M2 ~) b& \6 N+ ?6 W4 v; P[
' q/ L5 m# _0 sset 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 u# D+ q$ @8 S2 j' Yset k (k + 1)* W Y9 j$ `2 O2 q% b: A: c! {
]
! ^6 d, c0 f8 p6 o/ Aset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) . h% j& K* k/ u: h* @2 i$ F
set global-reputation-list (replace-item j global-reputation-list new)
% b) k% E6 x7 ^6 y; z; M R% rset j (j + 1)0 m& e( E# r+ S7 d9 m
]
* ~% f7 \+ Q% T4 ?- Fend
/ g- R2 \* f. T5 D, j- B6 j5 ]" a9 p0 ^* _7 S
* A) n A) X; z) M% C
7 l9 T4 j' k1 q6 @
to get-color
' E0 w9 y1 A8 e, [ T7 P" r% a! A* u7 F+ H# Y: Z
set color blue1 c* A) d3 w7 N
end4 I. E- ~, r3 M
' W4 K) w2 { ^- e$ Z4 V' [
to poll-class
/ L& w0 H ~/ F' bend2 E* z& U& G! Z4 z! R
0 {* R: Q$ Y5 ^: |to setup-plot1' v- ~1 L$ C6 H6 f& T
4 o% c/ |# P3 D* A8 o" i
set-current-plot "Trends-of-Local-reputation"
# H# u2 @# Y% F3 \% V
! L' P; r3 s7 y- X% D' g5 yset-plot-x-range 0 xmax
1 `1 E* `/ J( Q
5 h9 i! Z7 W6 B5 F. `1 s- W: Lset-plot-y-range 0.0 ymax
7 d& a. t/ T* l6 G4 s7 Cend
" K" Q1 t; l5 o$ Q0 }3 p4 S
. i( q: F; `' s: z! b$ n7 `6 Mto setup-plot21 n c' r, R4 {+ g2 K! Q
' C+ e2 w! g/ M0 I6 S1 k' b
set-current-plot "Trends-of-global-reputation"6 r( w! m) Q- u' @( K# n$ |
( P6 B) E/ q* s- \+ z0 mset-plot-x-range 0 xmax
+ y6 n- f: _! K' x
1 c9 S3 y# M1 X! s* hset-plot-y-range 0.0 ymax7 {- ^. _- j; a
end
/ H7 a0 e" l. p V6 r3 E6 [7 n( S* ?9 B& G* T; ^
to setup-plot3 X, e5 b* m! c& T2 t
% d+ R0 Y" m6 R0 W
set-current-plot "Trends-of-credibility"
/ d, j9 w5 Y) I- O) E- ^0 w
* d' V5 f. @% eset-plot-x-range 0 xmax
; R* r7 U& M7 I/ C- e; A a. ^. c! Y8 D
set-plot-y-range 0.0 ymax
- b1 J1 ` v# x: n: Tend
4 a$ H: D/ \; H6 x6 g
8 ` h- k" x6 bto do-plots$ \% T) E; P% @- t
set-current-plot "Trends-of-Local-reputation"
- e+ [* t% p6 C, g% E& Z2 Iset-current-plot-pen "Honest service"
4 O9 R* G* Q$ l$ L% q5 Q: P% d" Oend2 @! u3 O- H* n# ]' O3 i
! [9 x4 p1 l8 `$ ?1 a/ e. [* ~[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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