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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
" S/ B1 @, b9 x0 Xglobals[) L7 ^& i# U n" l
xmax
; x! Y7 v% o+ q1 J* X4 rymax W0 w* y& K) f/ Q
global-reputation-list
- e; r# w& a& d& C/ _8 z9 m
4 j* ]$ c1 M: l: e+ |1 J3 p2 [;;每一个turtle的全局声誉都存在此LIST中
u7 ?% g7 j% L8 jcredibility-list, @' ~' P' ?1 d5 n
;;每一个turtle的评价可信度3 @1 @# E- n0 X: _) e
honest-service
7 U% c/ z+ g& E% t$ g# m& K2 junhonest-service0 h0 T1 l7 B9 K1 V
oscillation
: k4 D( c' K5 F0 l# Trand-dynamic
! n0 a# E3 P+ _) t]
& i% E& c$ N, C% Z
/ i0 Z* u2 T6 O- ?% t8 k5 g5 Sturtles-own[/ @( x+ S# q6 e' _; `" E
trade-record-all
* |7 G- u3 K8 O2 J1 J6 H; d# `;;a list of lists,由trade-record-one组成 w* I/ H' s2 Q/ r
trade-record-one/ q! o* S! S" j+ T* w/ R1 Z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
$ D: b3 S& K5 x5 j2 ~5 y6 i
. E; W- {0 h" {8 l$ }7 e) X4 V;;[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]]
4 t! c2 N# C9 c' F: z8 itrade-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]
3 ^! S) u! \7 K2 l, wcredibility-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list9 \' U7 K2 P! U+ r
neighbor-total
% Q' X: w8 {! y* c;;记录该turtle的邻居节点的数目
3 `' ^+ n4 m! Utrade-time
* `3 ~. {' `) ?;;当前发生交易的turtle的交易时间* k* g6 ]- P9 w! n
appraise-give2 f2 ?5 Z4 U6 ~7 K
;;当前发生交易时给出的评价
( f: a8 `9 ^+ {7 |( C3 Q# {% rappraise-receive2 y l( Y( g& c' R) e
;;当前发生交易时收到的评价- _. ^2 ~/ O9 `2 M. [, A' q
appraise-time
" q6 q* J# S" |+ s;;当前发生交易时的评价时间" S3 ^9 |* p0 K7 S ]
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 m: R2 x5 F& V1 g3 U$ V# @trade-times-total/ `" K9 j6 e, b2 }/ ? H! [
;;与当前turtle的交易总次数
7 h* p- B2 S7 K; _* Itrade-money-total
! Q: D% j- k: D- [/ u0 _;;与当前turtle的交易总金额
& l9 y6 C. \: x3 ?4 elocal-reputation
" v' u/ T7 W9 |9 T$ k! jglobal-reputation. p" Y& W |, }; F4 \9 \$ j8 I
credibility5 M1 z( Z/ B1 u7 z, w
;;评价可信度,每次交易后都需要更新. ]: o' ^: Y. z0 L- x
credibility-all$ N) d0 v7 I" q7 `- Y2 N5 }* `* C4 j
;;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
$ `: T# t& _# N+ d) |! E" d4 a4 j
+ w" |% o& _# l# A$ r;;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# `3 p7 S- e+ s% H4 l* a6 ^" ~
credibility-one
. I5 ]0 n, ]7 D4 @+ w. i! P;;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
( h; V4 w% u3 c* y) K* Gglobal-proportion; j! g) ?* f6 k
customer
- J( c- ~0 D3 Ccustomer-no# }; Z+ }+ i5 u" ?6 S" F
trust-ok
* k/ Z" @5 ~7 i. C* Utrade-record-one-len;;trade-record-one的长度/ I7 L, R1 J( T# d1 j
]
) d6 j9 @- h( f+ i. f% l- h* x" V6 G8 L$ M% J: g
;;setup procedure5 q1 O9 b, N, l* U
5 r! G) `, E; \9 T' `5 v
to setup
" i! B$ x$ T- O, i C. R1 e: E5 o. b: S! l
ca
' G2 j2 |4 N) k" h' S
5 [0 b U/ }* z9 l" Rinitialize-settings' {0 |. U9 Q) E+ l6 r( _
: k M" s% v7 Y6 Y
crt people [setup-turtles]& z( I" E& Z: L5 ~/ s; M
! r* |4 w! L- l' T( x
reset-timer' J$ F) m5 T7 f* C
0 [+ w% b& ~0 {
poll-class3 H) _% M) t2 {. X+ J% }& x
. Q6 y7 D' E5 H" t/ msetup-plots
$ h/ `& S" r, ^
+ [2 ^% r( c! t& q( ^" V5 H: O b- Sdo-plots8 X- n, m% w0 Y K' g! t- E
end @, p/ Q+ |7 w2 ~( ?. t
" T7 p1 v1 x* L* G' J, \0 I I, |/ B
to initialize-settings
7 y6 H6 `) t* R5 x z5 K5 I O5 @, C/ {$ D% n5 ~7 ~0 ]: W! g C/ `
set global-reputation-list []1 g; g/ n' S2 [+ b/ k
H c) W W5 ~8 s: J4 f
set credibility-list n-values people [0.5]" g& I& k4 X v6 t, ]) B
- I1 g" o5 S$ P1 C' |# p7 ?set honest-service 02 n7 z; x9 H+ a% T' {6 H
- O# O4 t5 }% m8 z
set unhonest-service 0
5 [$ m* D+ P4 L
2 [" D5 }: }: }7 D5 h, m5 d' yset oscillation 0: F# d4 T9 R9 }5 @; P
, c- }8 o! N g1 V! O1 F0 n( ?set rand-dynamic 0
$ Q& @. Q) q% L4 i- S0 tend
8 u' T9 w' n2 G" K' t. c1 ~% l. _ S7 g/ ]* A
to setup-turtles , x9 D; n+ P6 h7 w' V0 S7 t3 U
set shape "person"
# Z e" _. m- C& |; Fsetxy random-xcor random-ycor
3 ~: Z" @; r4 V# X% H. o. sset trade-record-one []6 c6 c4 ^! t, i( N4 X
0 `4 M- y0 E h
set trade-record-all n-values people [(list (? + 1) 0 0)]
9 J% O7 x* Y2 D. {3 L3 o- f( F* f' g5 j6 W0 I- I
set trade-record-current []8 @ n, x0 c% j
set credibility-receive []! Q6 j5 w' R" x& @3 U6 g
set local-reputation 0.5
, w9 W/ B4 F3 I' `" uset neighbor-total 0
% }% y0 [! M$ b$ n3 U/ Bset trade-times-total 0
; L& p& ~/ |) C& Mset trade-money-total 0' @$ w& T# h- m0 a. _4 i% W! w1 H
set customer nobody
3 ^/ B0 B8 N% Q3 o9 {+ f/ ~set credibility-all n-values people [creat-credibility]
& i2 E) ?3 y$ X, J+ xset credibility n-values people [-1]* W7 p( ^+ L+ a, |' W8 T, m
get-color3 f$ c4 J+ q r7 ]2 j$ c# T
" E" P, h, M3 D4 ]
end% {6 q1 B6 A* o l/ F
$ G2 G6 k2 l \7 [8 m3 c5 jto-report creat-credibility% D+ P% a7 W& a2 }$ s+ h# H" F
report n-values people [0.5]
8 G6 s7 \1 y+ l- eend; w, Q5 g: `0 S" i ^' b# G
3 z' _2 \' A1 n6 x
to setup-plots
2 K$ a2 b3 G& V9 m, u" M: J1 G w) Z1 c2 b! G
set xmax 30 N5 [- Q: C! W9 }0 \! H
3 M. O. `1 t+ Q. a8 |* u" ^/ Bset ymax 1.0( u$ M8 y! D0 M$ {
) }6 W/ V& G5 X, j5 T6 @2 U# tclear-all-plots" t3 c1 E A1 n3 `/ i$ @0 X" `
4 f. h4 [" B ]! J5 Ysetup-plot13 C+ K1 Y1 G% ]7 F
$ K- L, Z* E+ a6 l( [+ Q" c$ R/ Rsetup-plot22 W7 @8 r4 C0 z: |# e, @! ?4 F+ `
1 U* u0 E2 Z3 `" x% y0 U
setup-plot35 q" S9 y) D5 f" E: \5 M$ ~) f
end; s% f$ G5 ?1 Y
: Q) e9 m) p; j1 ?
;;run time procedures
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to go
' c( o2 W& _ `, d* u* z! o' D+ }3 X" _7 G7 z, K0 _9 v0 [- i/ z
ask turtles [do-business]
; T# S" p) T6 Z" v: u+ o& z: y$ Tend; Q- {/ A, K4 ^7 d9 _
6 s a% l. @6 H* p4 Q" \" u
to do-business - {) P1 @' Y# {
: V' d) [. E. O3 A. w
. ?8 E x% g' f( ]; r3 Z. N7 Rrt random 3602 q& h& ?& L+ Z
, p5 j1 f' }; Y' n0 G0 V" K
fd 1
+ t; O( n, R- R8 p5 |
h2 u- {- l- a& ^ifelse(other turtles-here != nobody)[
6 r" j" e' n/ {$ e& c
; s% t1 v& ~. M; S4 Uset customer one-of other turtles-here
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;; set [customer] of customer myself
( ]) U1 P0 o/ n S
1 p1 e+ i0 |+ Y" T& j4 E5 ]; oset [trade-record-one] of self item (([who] of customer) - 1)
! r% }( _/ J2 V[trade-record-all]of self
( ^% P9 r- T7 t" \: q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) l5 @5 @! `' M+ `3 o
0 w9 J% x* h1 \+ d ^- m
set [trade-record-one] of customer item (([who] of self) - 1). }$ S! _: ^3 Y
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
' }" h I( w0 h' \4 y( E- h4 L, ^1 ?+ |* R
set trade-record-current( list (timer) (random money-upper-limit))
5 c0 K& k0 l3 H+ p" `& J7 r1 @/ z& Q. j% A/ ]2 I4 Q6 \: {5 l
ask self [do-trust]# r3 b8 S4 ~6 o8 g, k
;;先求i对j的信任度
! R0 W8 C. @0 Y+ L/ v3 O
* d! `+ \: _$ @, F3 g" oif ([trust-ok] of self) j$ s- J) T( j
;;根据i对j的信任度来决定是否与j进行交易[* S; u6 G$ G( U% b0 ~
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: v1 R" J' U# D& h( g9 ]3 K5 ~4 F
/ Q2 n, u y" v
[, {$ t/ |$ R8 H6 s2 C% g. T
7 L2 T% G/ ~' |$ I Cdo-trade" |5 ?2 r2 ?! a. F
7 H# z5 z* f! z0 K1 W1 Dupdate-credibility-ijl
: E# H4 g7 K- ` @
& U1 G3 \& m* c* z [5 ?1 Mupdate-credibility-list
+ l1 q- { V2 N" M0 h [
5 v8 x8 s2 K$ }; v5 h
0 P: B0 `2 Y$ S' S0 ~& q* y3 Fupdate-global-reputation-list
% n; j- [" t' }# c+ R! F0 h6 ]: p/ R6 X& n
poll-class6 x( b4 `; I( C' q
. X J) u+ Y- _' y. b2 qget-color
$ q" X" L' n6 H; x
4 I* A7 ]2 a$ J]]
4 z. X/ Y' h% v% W( I, m
0 u1 U, r- z8 u% L% x2 x2 N;;如果所得的信任度满足条件,则进行交易% o5 \& i, g+ p) B; |: ~
6 A; W7 m+ S% r, f$ |[1 o0 o* }1 K! f8 a1 [/ s$ P* F
! ?. p2 o0 [% l; l
rt random 360
) Z! `; ^6 ?2 ^; \" |! o, \. K$ U% r6 A5 `8 l! u! x
fd 1& D3 h0 t0 Z0 t1 h- j( C
* x I& K4 k9 i]
% Y& y# }" w* n# C4 ?) a. q. c G5 c. ^7 q: S
end
1 C6 ]8 m3 Q7 K. q. h! I- V2 E' x5 L. c2 j Y5 i) O7 l* j t: E7 y
to do-trust 8 ^7 V! f) G6 U1 k9 g: h
set trust-ok False I7 H- B9 x! p2 c+ G5 ^& o. Z
- t9 ?, |( c% O0 ]5 u) i
6 B2 u5 B# N% y' Hlet max-trade-times 08 I4 D; p: |7 K
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! x+ c$ J) d; z4 ]$ B6 [/ u4 glet max-trade-money 0/ m) p* E) ~6 A7 Y4 s2 B y' D5 `
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] e4 a" k6 l0 [7 ^# S
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 i( |$ G$ c0 t' z, U& M, Q
E% O( o6 q6 k0 K, O+ b& k
# U) R" T% E) Y! i& dget-global-proportion8 K% s5 C: x) B l7 Z
let trust-value |" _, [+ Z. D2 g \+ v5 k
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), e" ]5 A( O4 C3 \1 t7 M6 F) k4 B
if(trust-value > trade-trust-value)
$ M+ ^+ R: a% ^/ q0 N& s# G[set trust-ok true]
: F+ r- h- N% K V8 d- o4 nend, e f; A( r# |
6 S/ P2 y4 e- G8 o9 q. O
to get-global-proportion1 W! a7 \# `. V: ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 A3 I. s" w# n9 |4 F[set global-proportion 0]
; r; G; I% v6 F6 S8 ~* [[let i 05 c4 N% h+ z( ]! Y7 _4 l
let sum-money 0
1 J9 a9 Q- ^9 I4 u' W, @6 ~while[ i < people]
# s$ C7 i: P6 n3 ]) l5 @. I. E[
7 P2 P$ W; Q# p; J1 S: Nif( length (item i' \7 y: S: p: C1 P$ {( L' o0 w
[trade-record-all] of customer) > 3 )
( `, C. O! ?: o/ r- c& \[
( t; K" X) x- ^; b/ H, o. Lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))& [9 M s o3 O4 C
]' S' y" j3 g2 b) L r6 n
]
0 j/ W% _3 X ^0 }8 b3 [let j 0
' I o- b, L) [( ~3 E5 T# @# M# Wlet note 0" K7 N D8 m5 O
while[ j < people]8 {5 ~6 G9 ]" h! r( u2 W
[# M% R& c. b3 F+ S' v' }8 j
if( length (item i8 J G' M+ L4 V- |! ~
[trade-record-all] of customer) > 3 )% u$ M* I! u0 }& z0 ^
[
5 Y9 ~" c% x6 difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 N: [8 W; Z6 T8 f5 q. H! z3 d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
. L4 V# w, w! B9 a[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 L. U. {9 j; L' N, }2 L]
& N( C% u( a$ g6 l) L! E+ ?0 }]
; @2 {* ^/ ?) s. N& Xset global-proportion note% f' ]3 M3 q# R* B, ?
]
. n) }; [$ d( x! n" Z$ `7 iend
) l5 T) @2 p. Y$ n R1 _; B0 D
\& F7 v' T/ P. H) [7 D$ U" Bto do-trade
0 \0 G6 t. [% o8 D;;这个过程实际上是给双方作出评价的过程
' ?. w: x- ?. X/ Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 Q* A) M7 Z$ C0 w+ E8 b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! l" M+ j( f% hset trade-record-current lput(timer) trade-record-current
& L1 ?$ R4 W( }- U- U, u* x;;评价时间/ L8 u6 J7 S/ b3 V4 |
ask myself [
5 k) C) E& K2 {! g$ H6 Nupdate-local-reputation' Q1 E6 v% S: T/ o+ {, H' A# ]0 Q6 _
set trade-record-current lput([local-reputation] of myself) trade-record-current+ U v% _/ Q2 B! ?
]2 W( e$ N P: L& A* v5 L/ d( C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ H( K9 i8 V' d0 o4 N3 R. [
;;将此次交易的记录加入到trade-record-one中9 ~' t* T" D8 w: H- n! G1 e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
v- h7 i( j; @9 S& ^7 j" t; r3 nlet note (item 2 trade-record-current )2 B3 @ C0 ^; [9 V
set trade-record-current
9 Q! a1 D3 H5 b2 y(replace-item 2 trade-record-current (item 3 trade-record-current))$ ]$ Z' B. B1 T
set trade-record-current8 r' x: l* x% _" _( l
(replace-item 3 trade-record-current note)
6 T0 Y3 q4 L9 z' _$ X9 k+ W* M3 b' V& g8 i- r* N
: q" p% i8 O, I4 Hask customer [" s! C( _& l+ ^' s, p1 B+ \
update-local-reputation
% \5 f$ y( V5 ?) q7 }$ a. `set trade-record-current/ N& p. F. v, E$ b/ J% @
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & u0 j) ^4 n: ?2 F: x$ l% Z c
]
4 M5 ~& O) }5 }$ S5 V
& y. v$ [( `, D5 ~/ s, x- \, Q8 G/ _( O9 O( F9 k! V, Y7 X5 P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 i1 [; H9 |6 Q7 a8 _4 F% M& T
3 w- }* `3 z8 Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% l- k: F2 l* w; ?
;;将此次交易的记录加入到customer的trade-record-all中
: p" `8 ^1 E+ cend7 C# X% N' F( J9 Q
4 X6 Y) s! m' v4 `/ F3 y7 i/ j$ P2 P
to update-local-reputation( A$ o+ e1 \, L: J! T( k
set [trade-record-one-len] of myself length [trade-record-one] of myself
+ P0 G6 X! ?' k$ \; l2 e; B+ W5 y
8 l1 e+ o; b" n1 h
( g7 n+ N3 R! a;;if [trade-record-one-len] of myself > 3 - j" }, |8 H7 Z
update-neighbor-total
4 c0 A* h1 G& l7 D9 };;更新邻居节点的数目,在此进行
2 b9 Y; c- K/ T3 u9 ^) i: nlet i 3
! k; ?7 E# T$ \7 `let sum-time 0& ~# l5 S% g d# e8 d9 y
while[i < [trade-record-one-len] of myself]" \9 }# T' L d: {3 r
[
/ H$ T. z/ P! z8 Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 }- b# @1 y1 ?1 ^, N
set i
- D( }# f$ o! L* x( i + 1)+ E- @3 e7 Y9 p) m9 X7 Y4 z
]
8 t: H0 I7 V3 O+ w) @. l7 hlet j 3
+ i \2 f4 c1 J2 { Q2 \/ zlet sum-money 0( V% z/ t9 l, R# i5 k
while[j < [trade-record-one-len] of myself]
- Q* b/ X( s: q8 F8 w) ^[( F L3 K; f- Z/ I
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)
& t% N+ [5 Y/ g) [set j& P; R' Z# s9 S; n: V, k2 x4 w) `! j0 Y
( j + 1)- k8 O. ?* c# I: r
]
7 v. ]2 Y6 v1 g$ D7 Mlet k 3# c( l! X5 X& [9 ?9 s1 e
let power 0
# A. e& J' k# Hlet local 0# ^; }8 J8 p+ M- j+ I
while [k <[trade-record-one-len] of myself]: s1 C. H I9 B. Y% ~
[$ Q# G z4 u; U0 ~! O+ S) u& 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) ; J0 x3 w: M( B
set k (k + 1)! p8 r( l! p; N
]
2 G2 v! x% [) j$ Sset [local-reputation] of myself (local)
2 x( ~6 V( ^( Kend
7 E" v- u7 P/ U. i0 H* ]+ T: s5 R* J, e9 |, x4 t" v
to update-neighbor-total4 v) u; Y8 A; Z8 H: v) @( ?9 y
5 I: ~. c. ?6 X$ f2 ?# l! cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
/ P4 ~/ e+ {1 n/ L
, L. P/ d0 W8 V E" {$ k/ b+ b5 i; n' h1 Q ~
end2 ]% p% W7 p3 H, _3 ~' m
- I$ E2 W& Q$ b1 q$ F* l# E5 R* [
to update-credibility-ijl % t: O# o' n) m3 _6 y
6 h) O! V5 ]' N3 M; 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。$ n8 D& a; }" r' o
let l 0; J. B4 A+ u+ J m
while[ l < people ]
: j0 Y5 h* g- P0 s;;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
* o2 _+ X1 H5 S' d[
% W% n; \; U4 Q9 s' R- e4 x+ qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 u3 R; V1 \& l/ [2 `/ W v# G' ^
if (trade-record-one-j-l-len > 3)9 G6 p) g5 `$ F* k+ y6 c
[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
6 b4 ?2 X+ r# F9 l- S! ?let i 3
+ W3 x/ n. K# vlet sum-time 0
! l, v X5 [+ D" h* pwhile[i < trade-record-one-len]
2 I" h( D9 A' A2 H0 G- e[
6 N* d: F" g1 c8 eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). v! j" N8 s4 j" ^/ I3 @) R
set i
1 k2 _/ J8 h2 T" O+ v' u( i + 1); D" p4 \+ E$ a
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let credibility-i-j-l 0
# ]/ R, B$ K7 l;;i评价(j对jl的评价)' B$ ]2 a1 `1 @1 ?7 v
let j 3
, x6 \* J9 a1 U# w3 Blet k 4" o* M; [# H. u2 y
while[j < trade-record-one-len]; l# A7 q* P+ E7 T& f1 [
[
1 B! D3 o) O2 U' e2 a Q( uwhile [((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0 J v- w' ^% H3 r6 |" w/ v
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), T ?/ {/ B) g) g. ?3 i
set j4 E# }2 O/ R$ T" ]: t) z
( j + 1); I. n2 a) _% f/ M5 P0 ^
], t# y& _+ m- A
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 ))' Y5 M/ z& }9 [" D6 \+ d8 e: h
; U8 C* O& G9 d0 J7 Z2 \: \+ ~
* [( x; m; `: |# U; b5 V
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 ?& P" ^/ P9 Y, s" ?: b
;;及时更新i对l的评价质量的评价
% @5 h- d( A8 cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 ^3 E/ F, p; |2 kset l (l + 1)
9 t. V2 k9 i/ E) Z, R3 d' h' o. E]5 K2 {2 |& B' c2 r+ z
end4 T! P- \3 a- `1 u1 H/ y
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to update-credibility-list5 p2 }2 P% A& O' {
let i 0
1 q& S* Y' @, l- ~6 Twhile[i < people]
; ^) d# e1 [: W5 V[
9 l4 p0 m7 v( M& Plet j 0. L7 D4 }8 p/ F
let note 00 ]+ H6 N5 o! s0 _# u! s
let k 02 O3 k6 r; n( e; ]! z* m
;;计作出过评价的邻居节点的数目
% t. D, h& H; y4 I. c9 Cwhile[j < people]
. E1 a U1 d' ^[$ s5 F3 Y0 B, v0 T
if (item j( [credibility] of turtle (i + 1)) != -1)7 G. b3 X7 C, {$ j! r4 K+ }7 }
;;判断是否给本turtle的评价质量做出过评价的节点
+ z7 A( ?# U+ O1 j2 V b- U( d Q[set note (note + item j ([credibility]of turtle (i + 1)))
# [0 K8 t3 y% x;;*(exp (-(people - 2)))/(people - 2))]
, R' c* g P M8 U% w4 cset k (k + 1)
+ \/ m2 q9 l# w( |' }+ P# t1 L]: U. |0 {0 i, e. Y# Y
set j (j + 1)
; H9 F9 ^# D t/ W; `3 g]. f3 ]4 e% U; W3 \
set note (note *(exp (- (1 / k)))/ k)& Q+ d$ d9 e Z0 W
set credibility-list (replace-item i credibility-list note)
3 b d5 G; u) i2 E* ~, E* V$ rset i (i + 1), T8 y+ n4 r b9 a
]
1 }8 c2 Z* t* K& ^. y- Vend
" X2 p1 M0 I# K6 J* h- S
* ~4 c, }" p/ Y6 {9 Oto update-global-reputation-list! _, h! J {: J4 A. V# f6 O
let j 0
- g; c0 a/ N+ E! V( ]! B9 V) Swhile[j < people]
. }- |. p$ K3 @) b3 ^. ]- z[* R4 }* _' [: Q5 v6 r' R
let new 0' ~ i2 Q3 P( Y3 F# S
;;暂存新的一个全局声誉" h8 N1 F; V& g5 }: B
let i 0
+ O! k* T; w* X! P+ z! X, wlet sum-money 0
* m' a* ?/ C' a7 ]% ?! Tlet credibility-money 0
" v* s) M- W' _# }4 j3 @while [i < people]9 V" A7 R% v5 s {
[
7 J1 E) h6 J4 z5 Vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ {& H- ^$ ?; v7 W8 q: Zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 ^4 S4 M) n4 t) h k. ]( aset i (i + 1)# W0 x' o7 e# U4 Z) ?' b
]
+ W! H$ i8 m; [& mlet k 01 D% A8 h- p Q2 U- z
let new1 0
' z) k# a: n, u9 jwhile [k < people]6 G4 i& \: I) _6 e9 }6 o
[
# P* S- r2 m, ^9 w% h/ }$ 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)
' @" w& h# k6 `3 O' I+ pset k (k + 1)6 d% L; r1 D6 p, j" v9 u3 c! h
]
/ Y5 Q1 s6 `) x$ i5 \set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + T) s" V$ o* b9 @7 ?
set global-reputation-list (replace-item j global-reputation-list new)
/ {9 ]7 ~( u3 y- M2 H- \3 L* @* ?set j (j + 1)* H c( n$ _7 e
]. Q: H; }' u) v
end4 T# C7 B* `$ y0 M4 }
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to get-color& g$ G# |! @$ f( E; z
[8 z7 z4 a( x2 \* C
set color blue+ x3 o1 w! O1 ^/ y; J, r; b
end# E; Z ~2 W4 ]0 }+ F
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to poll-class6 B' t2 F" |+ H) u$ K5 Z1 O8 }
end0 E. Q1 f/ k9 @. E6 m( i
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to setup-plot1/ s" b% f- O: w0 G+ K
: t* t% l, \+ s( a9 ^; E S0 Oset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax, B& ^* z) t) [6 o% p5 G) W' D2 I
* w& a- E* T; n2 v0 rset-plot-y-range 0.0 ymax
9 ?1 B- l- V: |2 Rend
# l( F( q: ~+ }6 a, ?- p
! u9 E+ G. V, ito setup-plot2
0 l. Z3 m+ T2 y- f: O2 M$ b1 K1 F1 V' l) ]
set-current-plot "Trends-of-global-reputation"
7 g5 R+ o0 g1 r/ Q/ {4 ?
- _" }# j J! X4 Fset-plot-x-range 0 xmax
9 k# H. X s$ b$ J5 |5 \6 b. ~
set-plot-y-range 0.0 ymax
! f) x: H Y' J6 D, E- v) V- Rend3 M$ }0 D3 j r- u; I7 E$ [1 Y
: o4 X; C- p' e" w, d) j
to setup-plot3" g, p- f; u3 ?, K. v. ]5 ~' P
0 i2 L9 a& v: w% a- z3 i" W9 B
set-current-plot "Trends-of-credibility"
! \: _, d- z/ [* A) C/ `
, X y$ L& o! o5 W# h: I7 dset-plot-x-range 0 xmax2 `3 c& s6 j: K: g7 n
" t& @' L2 s; }( y$ o% p2 ~6 L3 R
set-plot-y-range 0.0 ymax" ?( E& \ s" g4 Y8 K
end
) h+ b- `3 H: X+ G3 N4 E% n, Q4 B9 {9 J2 A+ w& E3 C! k5 _
to do-plots9 S, t: A9 w% U9 ^! v! t/ v+ l" F
set-current-plot "Trends-of-Local-reputation"
6 E5 G: ^0 w* E+ h/ y* b2 v6 nset-current-plot-pen "Honest service" Z0 i7 [ U' y! I6 g
end1 `! N1 y2 d& R# N
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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