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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* ~7 n& v& U6 Y# U2 E
globals[
: {% e! W5 L7 D: X; d3 qxmax
& d/ C, f# A4 ^; q i' nymax1 }: }5 Z- {) v5 I: k+ g
global-reputation-list
! \' Y+ ^$ |* s) D6 {& u% H! S m+ Q2 |( R1 e8 c. v
;;每一个turtle的全局声誉都存在此LIST中
+ C7 |9 [) k4 a, q+ _credibility-list
$ B: @3 z A& u3 Y;;每一个turtle的评价可信度2 n) k5 J8 O- S! N* o* P
honest-service# @0 O; {4 s& t }
unhonest-service' l" k: Q3 X/ I/ g" |- ^
oscillation9 ^* x0 f" `3 O' x7 k! `
rand-dynamic( x" \1 f; n9 e/ v3 ]8 {
]
4 E/ H( q n( i' ~# ~
& p4 Z* b; j& j7 jturtles-own[7 N7 s Z1 J s
trade-record-all5 v2 K% g* M- }9 o# e' L- t' E1 c
;;a list of lists,由trade-record-one组成* l& E2 ~8 S4 p ]* Y4 c; x7 E
trade-record-one
) x( v/ d# m: ^$ ?8 u: e;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% I# L) Y0 T6 m* t9 p8 i/ `6 O6 ?
;;[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]]' K8 h9 |) ]$ ?' j, k1 } }
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]! y0 K, u0 h. |7 o
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 p# r9 E' q% y
neighbor-total# K9 x, v, K* ]3 Y" U" T8 y1 p
;;记录该turtle的邻居节点的数目
: F' _/ I3 R# \ v+ D$ y- Otrade-time7 k/ }" K3 B5 F
;;当前发生交易的turtle的交易时间( S2 L7 H0 A, x* ]) {
appraise-give
; r/ J" f, U3 [4 k0 m;;当前发生交易时给出的评价 T. [, S& @+ g7 U a6 G
appraise-receive
& y1 x* m7 X9 D1 Y! ]# w/ g;;当前发生交易时收到的评价. h8 ]; y" Q/ V/ Z4 e2 T( t2 K
appraise-time
, c7 w$ h1 ?; x& `;;当前发生交易时的评价时间
* F& H, m0 X2 h: |1 S0 Rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉6 W$ P& _! |2 z" W, u5 H. x: {
trade-times-total+ _! x1 \+ [/ W! u0 e# {* t
;;与当前turtle的交易总次数# L6 d% \/ m' Y& ?
trade-money-total
- c+ }, L; \" Y+ u2 ]. R1 A6 L;;与当前turtle的交易总金额" T3 A7 S, K, ?: G, H
local-reputation
7 h2 }+ k( J, e/ a5 H; Tglobal-reputation" r# t1 }. D* C' A% K1 Z
credibility+ F/ S0 O2 o- m5 _4 _
;;评价可信度,每次交易后都需要更新. D# F& P; e4 A9 R& O
credibility-all
f$ E' Q. q) a. o/ U0 u;;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& n* \! F' ^1 H, g1 j/ w7 ^% k
- G. A1 t6 t; Q( l" W
;;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" j. Q5 Y9 ]! ]) @6 n/ B( V+ r; ~
credibility-one! A% H6 {% V1 b4 G% P+ x: |
;;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4 ?: o% m* J$ a
global-proportion! Q1 i- E: a8 H. n* z1 m
customer
/ s! O: C$ L* v! s/ [customer-no
, G' ?& ?2 m, g* i3 Y& n: f& Jtrust-ok
8 [3 `5 W9 G N5 T: Etrade-record-one-len;;trade-record-one的长度 w. A( ]+ W: Z& K3 U
]' r! v- ?! W4 W: h) t9 I
7 m* u6 C6 e% t4 q9 n6 L;;setup procedure
, e" i, K; @5 M5 |, s. {; T# {1 ?5 u; N9 ?
to setup
8 X' a; K X2 A1 J& T. M1 x& U
! B4 M2 _8 m3 |/ @- kca
" v) F, g3 b) s/ @& `4 R
$ [7 R1 X# q9 r. Q! I% Z) a3 J% einitialize-settings
7 c5 _* Q3 d) H- o+ T. A( n" o8 K* I, ^5 C. c
crt people [setup-turtles]/ U7 u! ]# c2 y/ Q) f" d* f% u+ J
* U& H; A( n0 z m3 areset-timer/ E D- A: S4 H9 G7 A. h
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poll-class
) y9 `' q. A# [# `4 W. g/ l1 R6 b8 o; B" V7 m
setup-plots4 N/ O6 T) k+ E+ w+ E0 v) U
9 y, S/ C0 i- R' k+ v! k$ H
do-plots/ S: e$ z5 b- W" L% w/ X- M. a
end
& g3 X+ s- O. z! z q0 y* V! e$ Q
to initialize-settings
4 [' ]4 K# m9 Q1 A3 H" D. _/ v8 l2 @ p/ e) L
set global-reputation-list []
4 ?" z( T C- C* x) Z* y- E2 a
& l5 D% O' a g: hset credibility-list n-values people [0.5]
$ l* b. C( U) C0 J) o
9 u! P+ [4 M+ B+ Lset honest-service 0
7 |- t/ P* P% y; K- ]9 l* P# e' W& }
! g* H! ?* |4 b6 Z* Z. Qset unhonest-service 0
M3 W1 x. @+ x5 K1 W! F0 z7 ]. K
6 G: _6 v7 d3 W6 X- c" wset oscillation 0
; C: R+ p/ G& Y8 E" Z' Z
, v7 ~( a4 z1 d# x5 X0 Zset rand-dynamic 0) [4 h A) F1 g, z9 i" ]# c
end
* L( r+ ~7 W- t8 q& S4 |9 p
7 d& c+ D5 ~' R: D1 Q, t: Yto setup-turtles / T6 R+ T0 e/ D7 q+ T) p3 D1 W
set shape "person"5 T: B) H$ o+ K* S1 u
setxy random-xcor random-ycor
% Q% ?' D7 W% p. {1 J Y9 @set trade-record-one []3 ?& ?2 ~2 w! L# d' H1 O9 A
3 M: x( }9 k3 l X1 Z& Kset trade-record-all n-values people [(list (? + 1) 0 0)]
% u- h; r! J1 }# h8 |
" z* p& E1 q+ k; k. I. sset trade-record-current []
) y/ Y' {7 n/ a: ^) f3 Eset credibility-receive []
* r, ^! @2 k, i; B8 u. Jset local-reputation 0.52 d7 [& ?1 K) U: ]( U
set neighbor-total 00 D3 V5 ~0 O4 T# [' {
set trade-times-total 0
2 v$ w+ f. v5 Z6 @3 z' G8 pset trade-money-total 0) y8 {7 q! D! I
set customer nobody
q. K3 u6 Y8 Z& Vset credibility-all n-values people [creat-credibility]( ]; }: m0 ] S% \
set credibility n-values people [-1]
5 |) d$ e; P9 z) }0 L9 Kget-color
4 F+ y8 m# z, ^# o& y* m% z% h7 W9 k4 I, V& h' K
end; z9 D* f9 }/ q3 H/ k
1 \$ C. P, Y) _& j- Z( ^1 R& C! s9 _to-report creat-credibility
0 n% Y5 d' A& R+ R- f4 D+ Treport n-values people [0.5]4 w; |; }# k7 ]
end" ?2 W' W, {) Q! e: b" L% h
$ K4 d+ [1 ^+ o$ r/ ito setup-plots
/ h) z. s; h6 G) L; s- l2 j# h; S+ p, J; N3 w( g" w
set xmax 30
) p$ F: c2 b' R" A
! x7 |0 J7 g/ j7 X* o& [* U" Uset ymax 1.0. I# K* g$ _6 ` X+ v* n
4 c3 w6 i1 ?& V/ [) n
clear-all-plots
; X1 N" F: g3 n/ C: N! |/ L& E) }8 B3 D- k; i4 H
setup-plot15 T& g/ l8 T* J% h/ L( m
, X6 Y2 F3 i& C) k1 I6 }setup-plot2
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setup-plot3. L( ~$ A/ I4 k) p+ v3 F2 q! P
end
% S7 a, [- T$ Y* D5 j2 B) r
! j5 m8 X: L: K6 @$ {;;run time procedures$ J# m, t4 y5 r% e" e7 u( a0 t
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to go
/ \; ^) n p2 ?+ G$ [
6 q+ {. z9 C4 z$ C& Gask turtles [do-business]5 G$ ~( _4 w- t( a7 T
end L& Z' x* i: |2 v
/ @( j+ r5 D! |/ z4 R8 y
to do-business * {" x, w5 g: B9 q2 s! N
7 R W/ v$ |2 U8 L7 M% p5 ^
6 |7 o2 ]0 x0 s: Z- ~/ Wrt random 360
) |! I, H2 y' n' ^0 P$ B
( Y0 L8 l# T! mfd 14 ^8 m) R& I" e
' {# z0 N9 h6 S, ?- p0 G8 _
ifelse(other turtles-here != nobody)[0 N( ?; U- }1 I9 \0 [% a y. B
5 [( f* F; y6 [6 o, E' _* oset customer one-of other turtles-here) B% z. J; B/ V2 r0 m- [
( j; R8 h! d, |! a5 I+ Q
;; set [customer] of customer myself
: S4 }4 Z& u: h# P# r" G% N2 }, Y2 |/ H8 W- C
set [trade-record-one] of self item (([who] of customer) - 1)6 J+ L5 T$ g3 \( y
[trade-record-all]of self' N0 ]. g; O" `
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: x. v! k- w( M+ H. f- p
4 c$ K! [" i& B2 ~0 lset [trade-record-one] of customer item (([who] of self) - 1)
/ e# z. U v7 b4 q. [[trade-record-all]of customer. `1 \' d. x0 z5 \
4 z* J: H" U& }1 y$ Y' I* X
set [trade-record-one-len] of self length [trade-record-one] of self
B/ U6 V: J, W3 x, T
3 v6 z1 U% ~- P2 k+ f3 xset trade-record-current( list (timer) (random money-upper-limit))2 {( v4 k0 X% V9 x/ P. i- ?
; d5 d& X3 A9 ] j Aask self [do-trust]
$ ~( E b& A* v* I) r( y;;先求i对j的信任度5 i( I0 z8 l. ~9 D, I7 }- R
$ B' Y# `& N! v
if ([trust-ok] of self)+ k9 p$ M% J: n( r
;;根据i对j的信任度来决定是否与j进行交易[* x4 e& M7 W; [, v0 T4 `
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ y% R0 b/ q4 I# l& p& O
& X, f8 y9 X& b. [/ L4 ^# E
[- t$ \" x# O# n* p- M
6 z( B3 n$ e& ^2 G' b- z: [& \do-trade
2 S2 P+ N4 b) w# M
B' d( \' u# B) D( y' Qupdate-credibility-ijl7 f/ u" L1 J2 I# B5 A
2 H" G5 O, S! R. lupdate-credibility-list
. v+ e, f& i# f* `- o; S: P
5 d- Y3 k! ]1 j( `1 J7 e( j9 c5 f1 ?, u
update-global-reputation-list' o7 `: C2 X9 r2 f" Z
( \' R- L" a% B. Ypoll-class
' `* ~& @) p4 { D0 Q1 D, h% w" G
* q( Q, u1 h f: H: s }2 n/ {get-color
* g) S. n. Y6 [0 s$ G6 [) F" H0 x1 e1 M" {5 j# ]
]]
; i0 u4 K/ |7 c4 \! x' a* I4 C" `* B. X& a4 t$ B$ x' @, R1 k' p
;;如果所得的信任度满足条件,则进行交易/ {4 i8 Y" U P4 ~1 j
( q& X* M# {9 y! R3 V
[' k' p' A- F( l% _. p4 k6 X- l+ L
* j+ y; L/ [1 U3 Nrt random 360
2 {& Y( g2 Z4 x+ A
- Z: P! S+ D8 E1 jfd 1
2 P. R+ E! y" I3 R6 H
$ }, o& l* T ~, E3 j& T]+ D& m+ D, b7 @$ W% f. K3 p
3 `/ U, y8 ^0 A: M8 U/ `- K3 y; P
end* z1 L4 g* s+ j! p8 n8 M7 A
% \. w9 a, v: |/ T( G/ o
to do-trust + u$ Y( G. s, v$ o# _8 v
set trust-ok False
" G9 t( r& C6 M5 N* g
5 |- N z! W- E& T
. y$ u4 u: S: {5 b) f7 m# N( ilet max-trade-times 0* G l; e- V/ J- g9 C
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 j) H6 D; o. L# M6 o) C
let max-trade-money 03 u8 t) R' t% e3 ]( R9 P' T+ u( i! r
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 _ c6 w, F3 z1 R5 ]* clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% y. ]4 }8 }7 M9 O4 X/ c; s
5 W" e2 D- }' W; G
, e0 B$ G$ X M" G3 R+ Aget-global-proportion) z8 R* f! K$ j6 K
let trust-value
4 T3 q, d: t. u# B8 Glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
+ A7 |. l# Y3 Y% U; ]( r0 Rif(trust-value > trade-trust-value)% _. ]' u, ~) i! m2 w
[set trust-ok true]. x- k( F& E' ?1 _
end
$ e9 j; h% s5 }" [% S3 V6 g; J+ Z$ H0 U! V0 C% k. P+ G7 n
to get-global-proportion$ s% j; ]+ @5 ]( Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# h5 }3 y3 a! e' [& o" ?# x[set global-proportion 0]
& D! w! `- _# G5 W+ z9 j' j) X[let i 0
( N5 v( ~( @5 p9 n6 a6 y' j# q5 Flet sum-money 0
1 w* y( {! `8 r: g" Xwhile[ i < people]
* [* X4 |: K" E" b$ f+ C[- D q9 }! n' ?! f/ s. p4 B
if( length (item i
& M" r# Y( v; x5 S1 B- r' g[trade-record-all] of customer) > 3 )4 `1 |8 O) V* C; V$ x1 @1 |
[. R* }1 K6 l' B L% c9 x: ~" t6 @5 E
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 g9 L, r" D3 w3 c
]
% I/ w3 T& r0 t7 P/ @: K) w9 @]
% f& p Z$ B3 e" c- d. ^5 |let j 0& F3 o j( ?: }( `( L( r
let note 0
F7 A) h; m V( r) Zwhile[ j < people]/ A( Z3 l$ U- w. U- H+ f
[
( Z( f, Q& ^* I; w% L% iif( length (item i! u9 j P; v* ?& k: U$ `3 h" c) D
[trade-record-all] of customer) > 3 )! h! _* u* D' q9 L4 [4 Q5 e4 `
[" y8 G( a1 e% w0 j% M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), r( j f6 r) T1 H( A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# x& o; `5 e7 [! L# Z$ W' s2 Q8 v; e[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ n1 j5 @' F7 U, ~]9 s# G; f; o9 p% V
]
% _) D1 b' T8 `1 K6 j" ~0 s( U' iset global-proportion note% W7 M* s: I& ]' h7 J
]
2 E4 C ]* a: D' Zend
! N! \' ^" ?7 z
; V8 M0 H f n* ]to do-trade7 h/ ~) |( }9 H
;;这个过程实际上是给双方作出评价的过程
4 Y5 ]4 t% ~3 Y/ C- Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 @# t8 V1 D9 A6 S" i. X, b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( j% E- w' n S3 f! pset trade-record-current lput(timer) trade-record-current
0 h8 j( C9 P" c;;评价时间0 T, f) h( D1 i/ R
ask myself [0 {2 w, b9 g4 Y& a5 U7 i
update-local-reputation$ [0 i4 B4 Z' F p U9 A
set trade-record-current lput([local-reputation] of myself) trade-record-current7 u" G) B( f3 n
]
! ~. j; ]- S$ V- pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' a! s: R$ g( r& A8 K! ^
;;将此次交易的记录加入到trade-record-one中3 S D2 }2 F9 n
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% S! \) P; e# slet note (item 2 trade-record-current )- i) H& _2 O$ q& F0 n( R* t
set trade-record-current
% L1 {7 V2 n$ }% e( j; u(replace-item 2 trade-record-current (item 3 trade-record-current))& @; b5 ], _3 X/ O8 P
set trade-record-current" S, B0 D, j, a
(replace-item 3 trade-record-current note)
' M4 g7 b4 u3 I! l7 m- H- w( B8 m: r% j9 d M: G
: ^: a& d' j! Y1 A, Kask customer [, o) B3 `& w4 m5 m! E' I) a
update-local-reputation
' w0 j5 w7 ~1 o! l: v5 _set trade-record-current
/ W0 I3 `& U* u: Q* ^2 X0 I* r(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- X5 I( k* P! W2 j G1 D3 P]9 a% [1 D7 o- M
7 T5 J2 H; A0 @' a! J. D
0 W) [5 ~# r- ^/ e1 }set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; n) t" T7 D" t% A2 ~
* Z1 k/ x4 S; _! T2 [set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& f/ ~1 N* ?' n4 K4 Z7 F;;将此次交易的记录加入到customer的trade-record-all中# h% s4 e0 z4 p& L
end
4 l9 d& Y2 z& s; }6 f
3 b! M, Q" q! P) @to update-local-reputation2 C0 q+ l7 V0 N$ b, e5 H" n
set [trade-record-one-len] of myself length [trade-record-one] of myself
% q2 b! M6 e+ N2 E3 p
) u# u9 }% K% Z
' H. J( o) b% N8 q9 t }2 F7 ^;;if [trade-record-one-len] of myself > 3 6 }3 F7 C; b5 N, Q0 ?7 x4 b
update-neighbor-total
+ G3 ^) s9 H- [5 F7 T# v;;更新邻居节点的数目,在此进行: q1 W- K n! k @8 s L6 G
let i 3, r- z0 ~4 w2 |
let sum-time 0
+ T: V# k+ R, V4 Z" N! ^( V# }while[i < [trade-record-one-len] of myself]
5 C7 H% A; c6 B8 e- Z, [' V) R0 Y[( R T# E9 }4 H6 J! I& N
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& C; M, |5 h6 @8 \% c2 }set i
2 J7 e" c( f- k- u( i + 1), N, D8 T/ F' `( `3 L A& P
]
; T, O- |0 `7 o% \9 klet j 3
3 B3 q) j4 y1 M( N: u: }let sum-money 0
' c; i- r% D' y9 q( s9 gwhile[j < [trade-record-one-len] of myself]* C6 ]" Y9 Q& X, W0 `2 p: s
[
( N' K1 K& r3 L. z$ U0 eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
1 n) N8 F, r; }7 P. L" f* o; ]set j
7 u; V$ [+ k- K1 o& ?2 M, W y( j + 1)
: P% w2 P- D Z: f" C% \1 H6 a4 V' q]" J% c$ |+ \$ F9 e, t" T
let k 3
5 A& C+ s) x5 u1 ]let power 01 \. i2 j2 N+ W# s8 ?
let local 02 j& ] X( U8 _. x
while [k <[trade-record-one-len] of myself]0 r. X" M) I3 |, u+ ~+ P) X
[
4 `0 i7 N6 e4 L; _4 Zset 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) & g5 ~1 T% s& x* G P
set k (k + 1)/ O8 d' H( ^3 C/ N7 p
]
8 X$ R0 \7 \ _set [local-reputation] of myself (local)
( Q) b6 S4 A1 z2 bend
0 V; p5 Y) T; [ k/ `2 k2 k+ Y" r! G5 d; c$ Y- B# J4 }
to update-neighbor-total
. N) |! b* T; M/ F
$ L; r9 N- J+ d4 A. k+ g vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: P* e' D! {& }8 v G3 Z7 o9 y5 F0 u* n) q. X0 ?* W. C: q
: G- A E( R7 N9 \' Dend' S8 O" | W! o5 Y+ J
6 v, N" Y% I8 m; P( P6 \% f
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。% I8 ?0 [/ M& F6 [
let l 0
0 }: R7 q: A% V- o" ^while[ l < people ]
) F( t: Y$ ~% v- |2 h: E;;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6 H" u) J, ^: }
[
. T0 w. ~# U8 P0 U9 ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 ^1 t5 C- u! T" Q
if (trade-record-one-j-l-len > 3)8 V1 q1 l W e
[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
5 m( x" e/ z9 O" Rlet i 3
+ o% w0 C0 U# p. `/ xlet sum-time 02 g9 { [8 Y \: N* q7 p" b
while[i < trade-record-one-len]+ f' X% F1 `1 n7 @( J, q4 x/ S
[2 O* y7 {4 ]1 [, x! N! C3 O
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), d4 W; H- _0 d1 P3 ]8 Z& q
set i: H4 p! n6 g" s) E
( i + 1)
1 ` I% c, D( {: j]
8 ?* w5 b! W4 ^9 a2 B* p6 R1 i) }let credibility-i-j-l 0
* S+ p! q# K: x1 g ~; z1 p9 @;;i评价(j对jl的评价)
) I; e* G' k( ~2 klet j 3, R+ h1 q, m" g7 b. E
let k 4( k9 j/ S0 w5 v3 q
while[j < trade-record-one-len] ~* e( ?* x, [! H' e
[( H& m! o8 ^& p* u
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" C) c8 y! q! g9 D* q
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)7 h) W t s" i) q5 S% m
set j
: z4 a; Y' n% x% ?* L7 W; u3 `; w; a( j + 1)+ B- {3 {7 w' E* i( k; s" k* n* _# K5 x
]
7 p2 I0 l) g' }4 c& l oset [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 ))
0 F5 h1 ^; P' K0 H* }2 h. _& z
9 F# x a5 c: N, q" O& r
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 F& [- D# q+ V: L$ }4 z
;;及时更新i对l的评价质量的评价8 K0 m8 ^* E1 y0 S& T
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]& W# R3 Q: S& B$ h S3 H" L
set l (l + 1)
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end
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9 e0 z2 P3 n9 hto update-credibility-list
?7 e& P Q8 m2 }$ ~let i 0
+ Y: M9 J, H1 t% C5 Kwhile[i < people]4 Z) s1 V/ U$ l* F9 R3 D
[1 S3 o5 B! \$ Y( q2 P$ M) N
let j 0
, z5 z Z# A9 u7 h' _let note 08 R6 t( H9 k+ I
let k 0, @* L0 M) ?; F" u( x* h; L+ Z+ S
;;计作出过评价的邻居节点的数目
+ P+ U( q# P/ Fwhile[j < people]4 w) ^5 W' v, C9 @; n' K- n% N
[& H! q/ g7 L8 `! v
if (item j( [credibility] of turtle (i + 1)) != -1)
# ^5 D- E1 R) w+ f% j0 i;;判断是否给本turtle的评价质量做出过评价的节点' o+ c R( J/ x. E" V
[set note (note + item j ([credibility]of turtle (i + 1)))
, n$ }' W5 p" l$ v. o6 M;;*(exp (-(people - 2)))/(people - 2))]% V+ @* j n9 F; \+ e8 j% a3 l
set k (k + 1)) R7 _4 V) b+ v6 s% R* b; U" i4 N
]6 h) o* s' `( o
set j (j + 1)9 [6 `3 z q( i/ _7 v- P7 `4 E, R
]. h8 {' g7 n% E6 R h5 t
set note (note *(exp (- (1 / k)))/ k)
: f- }/ E% `" ]' ^- Gset credibility-list (replace-item i credibility-list note)
% x% ~, x6 z4 w9 ~set i (i + 1)
" Q% j0 _! ~3 {! x1 G* j9 G]3 r+ a& P( O0 B) l% M2 z! H, k1 q
end+ q' g6 ?6 c8 F* k
) ]: H: L" P* G- `+ g9 m+ Eto update-global-reputation-list9 p ?* l% m S1 V' Z
let j 0
5 A1 H. Q. D8 |" Q: P6 D! @8 bwhile[j < people]
5 X3 a: J, i' R$ R[
0 r- q# z7 |9 B, V, R3 rlet new 05 l0 p5 q0 C4 v- M
;;暂存新的一个全局声誉
0 _- [& c! J# J# _. F- _let i 0
+ G; j5 ~) ?. f' j' u" llet sum-money 0
/ h E% p# U+ n _' \) s! Jlet credibility-money 0
; J2 j3 d+ x) P+ m/ l) zwhile [i < people]7 Q( u( M H6 u% |0 T; w. `
[" ^; k% m$ t* T1 h% k4 {
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: H/ r. [$ [$ ~set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- T- R6 {6 I+ g/ |) G1 ]. t- W/ ~, J
set i (i + 1)
+ r! W5 `" A; s& M7 d]
$ `, K! U& D, Tlet k 0# I/ Z2 b$ h8 C3 Y
let new1 08 P' E1 {, k7 u+ W& J8 w/ [( X0 d; Q
while [k < people]. T* v# ^0 m7 c8 Y0 v3 D! o5 R% G2 u
[
5 K. h: ~6 d& j6 \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)* W9 P* m5 ^! w! H' \/ \6 w
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( Q6 e0 f! D7 p+ [- i
set global-reputation-list (replace-item j global-reputation-list new)
1 A+ H+ C- L: mset j (j + 1)* ]% l. L3 D' j; p
]
0 i* g, y9 ?4 Q p7 B2 V4 p. Z4 Q7 Wend5 A+ ^& r; j- i+ j
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to get-color7 ` [, r5 O2 Y, F# q
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set color blue+ R8 r/ n% Q+ C
end
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to poll-class! W0 y/ q; _. R2 A/ {
end& J* G/ M; |: B B
6 _! p- E4 w* A- Y( Q2 B
to setup-plot17 F5 C2 J8 Q+ f8 t! e
3 o) A- W1 M- b2 Q" |9 `. Oset-current-plot "Trends-of-Local-reputation"
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1 |( H. t- \6 E+ q; \6 N) Sset-plot-x-range 0 xmax3 u; ]9 D X; F) C8 w3 }
7 u5 V& G6 f: `7 f3 [$ w0 Nset-plot-y-range 0.0 ymax
" w4 X5 y \$ D7 `end j. d" ^* w# ~3 {
) @! f# B8 G9 Z+ v# n* cto setup-plot2
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* @# y. J5 ?0 V+ Yset-current-plot "Trends-of-global-reputation"
1 D2 ~' X+ N$ D% x1 y$ b; n
; @+ [) S6 r6 }( O {8 q4 g3 q/ Gset-plot-x-range 0 xmax
8 P2 E3 V( l1 R
6 I6 v/ Z+ T' Y6 R( m5 i) I- d. gset-plot-y-range 0.0 ymax
' r) F# L; X( r, \, N, o8 `8 uend1 k7 l) f' P" V( ~8 ` z. [
* s: [0 A! |# p, L o6 Pto setup-plot36 k& H M. L0 v; C4 S- R+ a' ^ q6 F+ ?5 G
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set-current-plot "Trends-of-credibility"% [( A0 n- C" [8 ]
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set-plot-x-range 0 xmax/ P" u6 ^6 C l& r( _& U
0 z6 I* y# ^6 j' pset-plot-y-range 0.0 ymax3 i: a0 Q7 X( J/ H" z
end
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to do-plots9 M2 Q, s# R) s
set-current-plot "Trends-of-Local-reputation"9 A; U2 ~0 N, K' a3 {0 v
set-current-plot-pen "Honest service"
6 m* j. N- [: D# gend: [ g' X C. H/ D0 E4 |9 R
' N- e$ r" e+ `" ?. R* K[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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