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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9 X0 n- ?3 p* n) {: a0 f
globals[
; L' {) u4 q. y9 Q+ e' wxmax
& I2 ]) X1 o1 O0 A; x7 Aymax3 o7 o* ?) m4 J- J+ T" z
global-reputation-list, ^2 X% c9 n/ L$ e4 s! b2 S
, W3 \% J" ^4 V;;每一个turtle的全局声誉都存在此LIST中3 W8 m! y) K7 Y$ t; }" {; E
credibility-list
1 g) j! ]; w9 D& D8 a- }4 M7 @;;每一个turtle的评价可信度
/ ^7 K) D* A6 U- H Q8 Hhonest-service
, l0 A* b0 `1 E3 C, H' h5 P' gunhonest-service2 z3 l6 V" y: W/ o( e! g
oscillation2 _! V9 u- O# Q0 F, T! g) u) n6 [; a! E
rand-dynamic
! \1 _% [" [9 J, D+ f/ W2 F]
5 C3 L# v5 W9 C2 h6 h
& d/ t- Z! ^+ G; h' U) cturtles-own[
% B* B2 S5 |% Dtrade-record-all
& t! d* J4 p2 H* ~) Y/ w0 p u;;a list of lists,由trade-record-one组成7 ]# \2 N( @6 ^2 e
trade-record-one
' g4 `# u9 j5 j% s, w7 t! J2 f;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 c* V" i; f: K+ f7 ?7 S( W) _
5 ~3 @5 x. h0 h) Q0 ^1 o, 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]]
; c7 c. T/ D0 \) V( S7 {0 W3 Ptrade-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]
4 V2 z6 Q" B4 t- |# z/ S2 Ucredibility-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, V5 t. J0 m. l: k8 R1 U
neighbor-total; r4 E) T8 \3 A* ]9 k2 x
;;记录该turtle的邻居节点的数目
- _( G, ?" e9 Itrade-time1 k. ^5 a/ i* ^5 S0 C/ v
;;当前发生交易的turtle的交易时间
# u9 G: a: F. w% v5 d+ {/ Qappraise-give$ j' h# g9 N" j' q
;;当前发生交易时给出的评价
& a, A) Q" Z3 E) }appraise-receive& M$ s: t* u. g
;;当前发生交易时收到的评价+ e1 P% T: A" ~" ?& b
appraise-time
! V8 D! a* R- {% E# `! O;;当前发生交易时的评价时间
: A2 S* C E$ A% W% j2 Vlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 Z- |' a7 f T+ s6 Z
trade-times-total4 E, {5 @& ^! q- ~1 z: k
;;与当前turtle的交易总次数
4 _% m8 g/ C6 e* `8 o, L* p( p4 O9 I+ btrade-money-total
* a; }$ H0 c8 B3 A& @;;与当前turtle的交易总金额 r$ [+ q! c' l6 Q# s7 f
local-reputation2 {5 D) \5 n8 R% A. M
global-reputation
" M4 E) Z* ?) ~: z+ lcredibility
2 x& I u5 |* F% m+ C x7 [6 b;;评价可信度,每次交易后都需要更新
8 Y# e" v, B/ Q$ X& W6 y) r9 _credibility-all% S5 ^& [$ X3 ~. p: K. ^4 T; ]
;;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8 Q" f, ]: H- D# G% d0 M3 d) ]
2 x% f, Q5 V) g9 p4 u6 B;;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0.58 ?0 o9 ?3 A" {$ A: d \* p
credibility-one
2 O4 o8 t5 X+ k( h" V2 s- 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: f2 `7 [% I$ e; L) Q
global-proportion& s6 c r# o% R, D0 G8 n
customer
/ D0 V& w& }. gcustomer-no( `% I2 {0 F( I# T/ T2 E
trust-ok
' Z: o P$ s k1 u5 Htrade-record-one-len;;trade-record-one的长度" W, C' |& [2 G- D; l6 K, k! B; ?( h
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0 P0 G. @+ h% j& t/ C;;setup procedure
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to setup
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, i( T, Y8 V. O4 q8 Ica
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initialize-settings# V: O+ {, |$ R" `7 V" `( [
0 B8 _* M, [) }# }, `0 e+ B; o8 ?crt people [setup-turtles] t1 d2 a/ O& Q
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reset-timer( H/ n5 S8 i5 r- t8 [: E# M* o
6 I; t& a, b/ Y
poll-class- _ i4 }' i* V9 K+ L) t2 J
9 s W) N6 k% q, @* ^. I' j
setup-plots# s2 p6 y/ }, D6 |2 Q- I
% z( C$ b& L% C _
do-plots5 R9 a! L* y% m. b9 H: M* y* J
end g5 `$ @: }0 M; P* P3 P- O4 K
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to initialize-settings
5 B, i }* T5 f# m
* R; T& J$ x4 k* s$ |8 F! Vset global-reputation-list []
k: Z8 Z' L) N4 k7 S$ p, ?- a; q _8 Z6 t
set credibility-list n-values people [0.5]
0 `/ |; T' H# m6 N, t5 ^) C! a2 a3 y. U' q, V
set honest-service 0
' f" y, s( q9 c3 S" u! A1 b/ Y" _. }0 ~
set unhonest-service 0" A/ E3 K3 b) m( c* J5 E
8 F. q' `0 _; ?4 I5 K1 U' Cset oscillation 06 O0 F) |. U: Y' a8 `
3 y& k( b3 f5 u; G/ s0 k% q
set rand-dynamic 0# B, b. f/ e" o. l2 y, [# G: X
end
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to setup-turtles
( R% X% M; V" ?set shape "person"/ D7 H5 d% w* N. [
setxy random-xcor random-ycor8 n8 s- |# R& A5 M9 e, t# ]# S
set trade-record-one []4 U6 V |; @" S( ]' o2 Y
1 a- l; f7 d' ~, iset trade-record-all n-values people [(list (? + 1) 0 0)] # r; ~8 }) j& k3 g
( q1 g( D+ M5 q( [
set trade-record-current []
+ H5 `5 l1 ^9 d9 A Vset credibility-receive []
' g3 g Z |$ \3 F) e1 i" Kset local-reputation 0.5
0 z+ P( W3 b1 j( t4 Y6 s+ C% m) m% {: bset neighbor-total 0
; i9 x* J3 M m5 |8 sset trade-times-total 0! C7 G: u4 m6 J9 E; _; J3 t6 t/ @
set trade-money-total 01 K5 e- m. t" r: J4 K
set customer nobody
2 I+ R9 d, W: q0 [" M. dset credibility-all n-values people [creat-credibility]2 X8 Q% C3 o5 w) m1 P/ x- h
set credibility n-values people [-1]
; H$ Y# @0 @! J0 l6 O2 W- y* Sget-color
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9 J$ g6 T4 H$ u& E+ qend
. V6 ?4 p/ t3 S6 l' ^" ~- k% X- l! s8 F7 A* D5 e. U6 j7 }6 _2 f8 C! Y8 ]
to-report creat-credibility
' I$ O! L6 L8 R7 e. Treport n-values people [0.5]
; p3 ?9 ~$ `% Lend9 Q& `& w: F) g- G# b$ w
4 G" B" B: q# `* |3 D2 p
to setup-plots. B) D2 }, X$ T. }" ]2 L
+ l' D3 n. v1 M( r; l' Y: E4 ?
set xmax 30
+ L7 m0 P+ a& S7 q6 w' Q. e2 ?3 i& _
set ymax 1.07 ^. ]+ X* X8 H; O8 r. P
$ [2 O2 `4 O4 p4 y
clear-all-plots5 V/ B' ?1 y) J0 O9 `6 z
, F/ W a- y2 ~: l6 D5 G* z; j0 jsetup-plot11 ~1 R: q2 [) k3 F9 f8 I
2 Z$ V$ Q1 _3 n- E- a1 Qsetup-plot2/ ~* g+ p4 h! n' T3 T- J
. i; `/ @. C2 f
setup-plot3* J9 I5 R: i% u. X& d3 u# Z0 p1 k6 [4 F
end4 W: g& U0 ?+ s Q( P. h4 l
- i! O- V2 B+ Z& s! p7 O" q- K;;run time procedures
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: `' ^; Q, ]" T# Ito go
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ask turtles [do-business]
4 `$ a5 \+ D l A/ _0 Nend, T( k& ?; k, q" O
3 c- w( @; w, \
to do-business $ a: i$ C; p6 y5 K5 s
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2 {6 h4 Y% ^2 C! F# zrt random 360% f( H. w. r7 b, G! o0 q
$ G* b- @, i1 p8 kfd 1
( B! H* D! g; B
5 @( H) C$ D; m+ C8 ~ifelse(other turtles-here != nobody)[
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, n, Z$ o. f* Jset customer one-of other turtles-here k0 s- ~9 O; w' h) [* ?5 L' @
9 ]' r! Z/ P' y9 Q. W;; set [customer] of customer myself! G5 ?: ^$ U" A' u% J7 K
) g1 O, w. u* t& |5 Qset [trade-record-one] of self item (([who] of customer) - 1)9 n6 D7 U* b* U# E3 l3 R
[trade-record-all]of self
0 M! P B2 M' Z6 {;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 U l4 M# |/ W8 d/ C+ P, a
+ c+ `% x- U: ~# `
set [trade-record-one] of customer item (([who] of self) - 1): W9 @# E# b4 D3 u; B
[trade-record-all]of customer6 l5 K: | G3 p# l
9 L+ {# V8 a2 }, \8 ^set [trade-record-one-len] of self length [trade-record-one] of self
: W; A: S* A2 Y. l/ a; s, }: j$ I, Q& H9 s( m9 H
set trade-record-current( list (timer) (random money-upper-limit))
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# q& l, w& e' J v/ |ask self [do-trust] Z, h$ n$ K, }) N [+ z# h# o7 s
;;先求i对j的信任度2 T, j# {5 ]$ [. ^: X1 m& ^2 F
) a5 u. ?; H; w/ C" A+ Nif ([trust-ok] of self)
- M# U- t7 M# y( u6 x& w2 P;;根据i对j的信任度来决定是否与j进行交易[
# F0 i; ]9 M9 x# ?' o( Y/ cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! p$ G, G; S/ ~, a+ p" ~
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[
0 S+ W* W% Q2 M- B; n3 P6 j
+ O v) o' G* Mdo-trade J) v1 ?; g# u
! X, s0 w" H: w+ }6 n1 A1 J& a
update-credibility-ijl
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update-credibility-list
# v9 u# U% d P4 u/ M0 k
3 q5 q& D+ K/ v8 i+ B* r9 ?: F7 M7 X2 q% h3 u1 f9 t1 ~
update-global-reputation-list
6 @2 S4 a @' A" ^ f( z: z9 j$ G& l
poll-class8 b6 H% x7 a1 v3 Z! b% |
3 w# z; g; i0 x3 @+ B
get-color4 G- E/ C& U% V d/ U) e
3 E, \8 L d" o1 d( ~]]
4 {1 ~' r; x6 E, c/ L; K% y
. d3 |# Z% z5 N Y; v;;如果所得的信任度满足条件,则进行交易
( x# y4 A* g* c6 ^5 z' e O/ q0 Q7 B7 C0 M7 ^
[
$ U# i6 y5 F1 i; X! D
; M! J# K& B) H1 u. \7 Crt random 360; D! u8 j( M/ {# Q9 p! c
) {6 I& r9 Q' ]9 Y+ kfd 1
1 L& l P) z& G: i' w& z0 D( s6 }% v4 W1 ~- z' ]9 A" o
]& I0 y5 }% X! R
8 ~' R D) ^) Send
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to do-trust
1 R# X" p! f# h) c" j+ J- `set trust-ok False
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" Y0 s, V4 j x6 }3 ~7 ]6 L
let max-trade-times 0 z3 }0 o( j# L6 ]- J
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 s; n6 k) {/ A1 j, tlet max-trade-money 0* v, c1 {5 c. b1 w4 y5 y. v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 h' R% I* U4 B. F: Qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ }6 ]; c$ C4 j+ J. X# m* t
% h8 j- F% o$ X
, V) J' k6 d _' F: y/ Wget-global-proportion4 J5 y$ P6 c6 C: ^$ v' P
let trust-value
+ p" \7 E4 g* f7 clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)$ u; ?" @3 a2 z6 N6 p! T8 J
if(trust-value > trade-trust-value)* T, r( e# C/ p
[set trust-ok true]# ^$ K1 i8 b5 k5 Q
end
: [6 c# o" R) x. J
2 k9 s% J3 t: Y1 f j9 Gto get-global-proportion
. Z5 @$ ^5 Q7 t4 o, yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 [! Z( Z# c( h1 X0 |: l
[set global-proportion 0]
3 z' z- r: _! u2 L6 U, X+ a D[let i 0 w9 N8 P8 H9 e& A+ R
let sum-money 01 K8 C2 G& X- B0 N% S- R5 A8 n' a
while[ i < people]4 e7 {5 y: O: z' h/ f
[
$ `* S0 L2 J" a0 L$ xif( length (item i5 S- d+ n6 y' x; Y R! k
[trade-record-all] of customer) > 3 )# G9 a, F3 E# Z7 s/ Y! Y8 U
[% h1 n1 {0 b3 P" o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# d( g. Z# F6 ^) B$ H6 {3 i3 J f0 s
]
7 l& N, E: u3 d4 W]
9 f- @( a+ k* B" Xlet j 0
- L9 }+ M: y7 g A8 R: Olet note 0
" @) c/ W9 N' ~2 ^, [while[ j < people]7 I) b% e0 O$ Q9 e! d# G
[5 I1 }, e* C n F. C
if( length (item i6 \- L: @8 P9 L# ^- c8 i' o. H
[trade-record-all] of customer) > 3 )
* ^5 Q8 f- n% O. L7 V' M1 R6 I[
2 ^3 f6 s# B [3 d! n5 g' a/ S9 Cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 a( m4 W! J- e! y" P; `7 g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ T. e5 O8 P; D$ i# F/ C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: T, K) S/ f6 V8 e6 e6 R]
" f+ F# e" Q" @]
, `; ^7 ^9 _& ^+ { @* g1 b4 cset global-proportion note
D" n+ b0 a/ p) u% h* z) N* C]) X% G# w, r7 [" w: Y
end9 Y" L0 p, ^' l6 r- j7 \
" \- _+ K, q" E/ M9 [: kto do-trade
1 k: H3 v8 ~! j# k3 e4 p;;这个过程实际上是给双方作出评价的过程* {; ?8 b# g9 z0 z6 _/ B/ k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 L' n' S V( b/ U6 Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 R+ [7 L) s' n7 r; ^. b- b) Q; Uset trade-record-current lput(timer) trade-record-current
c' P- Q. {$ j5 F;;评价时间- n0 n, G/ E: }$ {
ask myself [7 r2 M: ~0 K; ]6 T% _
update-local-reputation( U) p' F! o0 l/ Q2 |
set trade-record-current lput([local-reputation] of myself) trade-record-current
D+ G( n2 W' j, t" [5 |( \! {]/ `. U+ V. c% M3 v; N6 J. L/ f4 n3 ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* R: r9 p) F3 j: _0 @
;;将此次交易的记录加入到trade-record-one中
& ~& r( ?8 j3 R9 X4 I' b% ]set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' T/ O4 P) g& J3 \3 |
let note (item 2 trade-record-current )
: K n6 Z" ?6 N0 |7 F1 Zset trade-record-current
- Y- A7 n7 Y( b+ w(replace-item 2 trade-record-current (item 3 trade-record-current))% ]' P2 |1 n; E( O( l
set trade-record-current
2 P6 s; }0 e' M% H x5 o. w(replace-item 3 trade-record-current note)
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, q) t B% |8 [1 Z+ n0 Y; S, K' `% r; W* P/ t6 v" ^
ask customer [
! T- B( z3 W. W0 u" W7 Y3 c8 x" R: cupdate-local-reputation
8 @+ L# ?) L$ c" L5 G; f, x8 h( Aset trade-record-current
! l8 a( {; V: a& G(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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0 `5 J4 x+ |9 q6 U2 V+ Q, k
) k7 g$ U5 k! Z( {set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ \0 u v/ }; g; d9 @. f2 {( ^& c/ v2 q8 b) I; ?9 i/ t. \
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- i9 @ L0 `+ f, F/ d( [( v
;;将此次交易的记录加入到customer的trade-record-all中3 h& B6 Z4 Q% E( p: C' U
end
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to update-local-reputation2 ^, W- {, `7 H# @
set [trade-record-one-len] of myself length [trade-record-one] of myself
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+ y5 J# Q( w, B
9 O8 B1 S; t- R/ H8 M7 r;;if [trade-record-one-len] of myself > 3 0 l8 d9 h' \; u
update-neighbor-total! p4 ^$ ^6 N# m- D c
;;更新邻居节点的数目,在此进行
6 `3 f+ W+ L- m# H+ [- b4 T" dlet i 3& u" a& C( |. _- Z( ~" e, F' \
let sum-time 0
6 d: U( z( j$ {9 C0 K/ gwhile[i < [trade-record-one-len] of myself]3 V4 e; ?, ?; K$ p8 `6 Y
[( l) U2 I) y* i
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
Y% o+ d f/ ^- ?: E+ }* [/ I4 lset i
( ?: ~; l: O3 v0 p( i + 1)
" t1 U- ~* ^1 m, W7 d0 e]9 B$ T9 g/ u7 ]! |' n9 e
let j 35 U$ _& r5 ]- m# X+ N
let sum-money 0
. r) \1 Q. D, _& `4 q& t0 J. e) Dwhile[j < [trade-record-one-len] of myself]
. m6 G( a2 I. I/ P5 l1 s8 f[* R/ d. k4 }) [9 U# B0 _( c
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)$ {/ B y7 m: [! A, y9 O! ^
set j$ r9 f' z) ^- @# D7 H; Z
( j + 1)
9 x8 v) i* P2 c7 c% o]
! g: D! I6 g1 W) s) H( glet k 3* u9 S- W9 N( y
let power 04 S8 g x& H: O) ]( {( I; F9 {+ a
let local 0
* W+ o# |" A, h }) C% swhile [k <[trade-record-one-len] of myself]
, q: y: Q/ Y1 l9 O1 N9 C[( l! ]% }8 ^& o. ?: v
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)
' t" q+ c" F% k' Y. ]$ Eset k (k + 1)
& N _; Y4 ~% p% q]
' R( P$ b! ~0 J Hset [local-reputation] of myself (local)
( \' O# u# v5 S* iend/ X2 I9 {' t6 D9 G6 P* G
/ o3 S, t1 L4 O8 t! Zto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* \* Y1 M% F: \' f3 M( S9 \, H. x6 t' L2 z( k+ Y" d
' x2 \& [6 |% [9 l' jend# L% N3 m. e) S) f5 K. E
" u- a& T6 v: C# h1 c, \
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。
. g# R, H$ G, n+ R3 Y$ p& Vlet l 0; p. Y% A8 H1 T8 b3 X1 {
while[ l < people ]; R! \; ^, q3 [/ o
;;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: y4 q+ B( e& p5 l, Q0 R$ `
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" e7 e+ }; x8 W& kif (trade-record-one-j-l-len > 3)
% n; \; Y6 }" R! J+ m. N! E+ L[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
4 f5 y' ~& s/ a4 x* C; T: mlet i 3
5 E/ J. w; r4 `0 xlet sum-time 0 J I- R" X+ X) {0 X8 @# ~2 l4 H
while[i < trade-record-one-len]- Y+ {: _$ n% a
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) `0 U$ a% B) F* R4 R
set i
1 J- G) T' h2 K! X( i + 1)
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7 p$ s, Y. z$ C7 Q5 f" S+ o6 Q! clet credibility-i-j-l 0
( m7 w4 O- J' t: _;;i评价(j对jl的评价) e2 {8 o- V& O) x5 ^, z, ?& M
let j 3
# _% [8 C5 u9 Q, c$ X1 B3 d! Hlet k 43 w2 i, N8 B3 B0 C
while[j < trade-record-one-len]
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% H; M+ d' H# Y$ Iwhile [((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9 u/ `" b, A9 L7 f2 ]
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)
$ K; p' b4 l, f5 Jset j& r: M- l1 W4 C' G; ~" l; I8 s
( j + 1)* ]4 V9 Z; z. `/ M; y+ s
]
0 |, E7 q: P( N1 Zset [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 @; [+ F( t$ u q. ?% ^
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" Z& I3 f2 t, m6 f. R+ jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 y7 ?8 _8 I+ ^& l! }3 K# ?
;;及时更新i对l的评价质量的评价* V* ?. t" F& p. ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. h2 b/ j9 s# p, S% |5 Q( Gset l (l + 1)
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. ^# q" H' H b1 p9 Send, K% U+ O* o( ]1 J, l$ A. ~" K7 i
5 q$ k/ z9 G! jto update-credibility-list5 U: E" r. s) {+ j5 o
let i 0
- a4 d% {2 q" rwhile[i < people]
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let j 0
8 H: ?$ I2 S [5 `; i% k6 dlet note 0
0 n; s0 z% f9 xlet k 09 S( R4 \9 K, {6 J& z: P2 t' q" v
;;计作出过评价的邻居节点的数目& y; |6 [% g. U% `) g. U
while[j < people]& |- D% G8 y* X! q! `3 r# Q
[( f4 ~! T9 S5 Y u6 m
if (item j( [credibility] of turtle (i + 1)) != -1)& ]& a6 C- l% u6 d. m5 V: ~! E
;;判断是否给本turtle的评价质量做出过评价的节点5 ?2 G% K* }& l
[set note (note + item j ([credibility]of turtle (i + 1)))# l" S$ q1 s; ?- m
;;*(exp (-(people - 2)))/(people - 2))]
/ S( { j5 E: x/ @4 Y- O1 Tset k (k + 1)
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# c. V. l& L- l& qset j (j + 1)
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7 y `/ H- L; i, r) `0 w9 dset note (note *(exp (- (1 / k)))/ k)
1 p) p1 }1 W. [2 u4 b( X3 M% @/ e$ K: iset credibility-list (replace-item i credibility-list note)
, j( n/ o' A% S$ rset i (i + 1)
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end
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0 C) Y; F3 J+ K' j% ]) Sto update-global-reputation-list
3 Y+ S! q- m2 w- Rlet j 0
( J, g0 l" f0 q# Z! V U* ?$ mwhile[j < people]
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% s$ I3 p4 j' G1 s" ulet new 0
& B F0 ~3 ?7 {1 V; L;;暂存新的一个全局声誉- q5 |; a# Y0 f; E# j
let i 0' \5 _7 z* @2 S" k# y
let sum-money 0
+ S# W7 A, i8 k. Mlet credibility-money 0, G1 ]- y- \; q" r; X
while [i < people]+ t7 [0 i- C8 A" F9 R1 N
[
* ^" P; z" P0 d8 s( \set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* ?; _# }+ ?1 \7 Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- z/ _- a' L, h0 P/ g; K. yset i (i + 1)6 H+ D! M P) ]+ N2 L- U. {. N
]
' G+ D. C0 v9 t+ |4 ?let k 01 {: E: B! M3 W N; B0 J
let new1 00 @: i% z4 k1 r7 y) M9 P
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); y" V2 |7 @- {5 r
set k (k + 1)1 f- Y$ q! z# e# g+ H& b i
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ P ^" z" ?7 y- ?/ D$ |set global-reputation-list (replace-item j global-reputation-list new) N, h5 A0 ^8 m7 e5 }- ^, U4 T
set j (j + 1)
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end
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to get-color7 ~. g% N9 @4 N1 y# A; ]+ N+ {5 V
, |7 i* T3 B6 H& }( dset color blue _: [2 j$ j9 F+ z0 y* W
end
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7 n* y' n0 ` y$ n: i! [, L: k# {to poll-class
' D1 ]( V3 }: c( F Dend
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to setup-plot17 B) D& x9 h' T9 N3 b' }
7 y, h9 Q8 y7 E9 u) Uset-current-plot "Trends-of-Local-reputation"8 g! V) R% u9 g6 e. w5 D
+ I0 w3 d8 g8 J% B9 Cset-plot-x-range 0 xmax
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! `4 i) o0 }. [ l- T" x. X. oset-plot-y-range 0.0 ymax2 r" l0 {4 |: t) v/ a, r2 p: [ w
end1 x& R# F9 m# D0 @
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to setup-plot2+ q( l, C. G( n: W" |# a/ A) V
6 u& A/ X( L7 e7 L( iset-current-plot "Trends-of-global-reputation"
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6 k0 S( e( e! N Yset-plot-x-range 0 xmax
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$ H5 h5 @8 \7 h; j. ]set-plot-y-range 0.0 ymax4 j4 X: |. l2 \/ i
end
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to setup-plot3
n0 Z6 E* k8 f- \; i
- ?# }/ \3 t6 yset-current-plot "Trends-of-credibility"
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! O7 J' j% _- ~) W- u% t: ~& cset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax: S! x- b9 V: M1 r5 z+ }
end
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v* K! n0 i/ n$ S1 q; m# O# Dto do-plots
6 \# Q( l- l3 V* a+ L. G: i2 v' a Vset-current-plot "Trends-of-Local-reputation"
! Y' m- g3 y$ y1 _* @set-current-plot-pen "Honest service"( p* K- j l/ z. R A* h
end- n5 G0 Q& {9 V& _+ `
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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