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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 i( v- S8 ^4 j( bglobals[- d7 c: [0 O$ l/ D! ]! |
xmax" n* {' l9 H/ K2 L
ymax
# L$ Z6 [, Q8 U( sglobal-reputation-list
" D4 K! [9 B0 o% N$ A- l4 t5 d$ @. ^6 J9 G/ A8 m
;;每一个turtle的全局声誉都存在此LIST中
' i' ]$ q3 n; k6 v& s+ L/ Ecredibility-list
0 D: x7 w- P G2 s- D;;每一个turtle的评价可信度
" }/ S) C! T; z" Q# @* n- {honest-service
& @) P) Z3 u; u5 hunhonest-service7 s8 B: A, b* Y' ^% |( A7 t
oscillation
$ x* X; j# O* Orand-dynamic- Z; R" ?7 v2 q
]* _4 a3 V) e( I: W, D- y( s2 O! o
! Q4 K# R t/ f! O( h
turtles-own[* H; s, ?% q9 l5 t( o5 Z( B
trade-record-all
6 j5 [# T9 j, ^8 a V; r;;a list of lists,由trade-record-one组成
6 c2 P" ?& y, I, f/ Ctrade-record-one) [2 S! U5 N% [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* p i1 Q3 a" E! M" ~+ V' o, o3 _0 k8 } |
;;[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]]
$ X; E& M$ z! M2 Ltrade-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 `$ R1 j# j; ^2 @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& C' z& E g& Aneighbor-total; F) X+ n/ w) G( W# Z u
;;记录该turtle的邻居节点的数目
& R, m8 t* F2 atrade-time0 g& B2 b+ x X
;;当前发生交易的turtle的交易时间: ^3 _& j8 [8 W1 S, ]
appraise-give' Q+ i8 V& m' c- q* e/ q
;;当前发生交易时给出的评价; Y) \& E* X& n0 U
appraise-receive
- O! [( O: ?! m' E# S% j2 I;;当前发生交易时收到的评价
@4 D# c( y3 w, Uappraise-time3 W9 d! _, G6 D% y7 ?2 C
;;当前发生交易时的评价时间
6 B4 c& p) q3 ~3 Z- _! }& dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉- }* P% h' p9 A6 {" B; z$ H1 v
trade-times-total+ K R* d8 H' I: g
;;与当前turtle的交易总次数
: D1 J. I2 Y* n+ u7 Ptrade-money-total
+ I+ m; ^0 M3 |! H) H9 p;;与当前turtle的交易总金额) P- {( M! F* t s9 E
local-reputation* k" @2 N! J% m7 H
global-reputation/ A, _5 {2 q( j+ ^# N- j4 [2 j7 d, h8 u
credibility
! Q' I9 m/ W6 u* Z$ L;;评价可信度,每次交易后都需要更新% \$ j W( I/ ]; A+ j( \$ U
credibility-all
$ O9 o: G. f" M- n9 }0 S; P% y;;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
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;;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
8 @/ e, ^4 v: o, ?) l+ n' Bcredibility-one
+ E" m6 }( {- ^* C. r3 O;;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5 q$ f: V" Q Z, p* X2 d0 r
global-proportion
: Q7 d1 c- W& k$ |customer
6 ^: {: ~: k/ ]* z( z+ k! [customer-no$ G, B3 ?1 W# z" T, y
trust-ok
" d* V& x4 z+ F: ~8 [' ?% Strade-record-one-len;;trade-record-one的长度
+ t( _8 x3 u9 v" c6 K: p]
6 I7 n/ D1 Z( h" Y9 u: O' V5 ~- @; M! w7 W
;;setup procedure- y& X2 ]6 q/ Q0 m; b2 N+ P6 t
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to setup: d5 T7 I, A$ W. T5 q9 d- {9 A% k
$ ^+ `- T& b0 H9 _/ K2 L9 M6 g. Lca
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initialize-settings- E% K. r. Y6 _" |0 E+ `7 U
9 ]8 ~0 p; x# Z Wcrt people [setup-turtles]6 z6 S# m+ o* s! Z% b
2 N, N. {7 n0 ], H( }reset-timer
3 K4 k# S/ H& A% V% y: M' [0 J3 K" N: o7 _% C) l* q( W0 @5 C; o
poll-class
% _; n/ t% O% Y
6 @2 v: [! z# s r" z! lsetup-plots; Z! l% a2 M3 o+ _1 z- b5 f: E
^6 ]) T) Z4 L" v2 \4 m* _do-plots
. c* U9 D# |7 n2 send* S, t! Q+ @7 J7 N& }, a* [
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to initialize-settings
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set global-reputation-list []
9 ^6 k( y8 m. c3 y1 ^9 U7 A* r- }1 S' z/ w9 ~. T( ^7 v# }
set credibility-list n-values people [0.5]$ C( H4 _+ _8 l7 Q( \
* S p* E! R0 N: j3 w# H) Y
set honest-service 0
{* f: l! N6 I& ]" p" X" L9 u: F9 U4 y) c
set unhonest-service 0
6 }6 [% p. q# D8 `' e% I
1 ^+ X3 Y- O+ z' X7 cset oscillation 09 J6 H+ N o, W, T: o; g! }5 z
5 w# l/ p4 [& F
set rand-dynamic 03 g; T, C6 G( w* S& l
end) q) T1 d% z7 C0 {8 c
$ P7 |7 ]4 U- s$ D; T7 w9 C1 T
to setup-turtles 4 z( q( T5 U( I3 m
set shape "person"
/ j& b' S1 Y( ?1 u4 Rsetxy random-xcor random-ycor
6 L2 x3 N2 \$ B* C/ {+ p9 n* n: Rset trade-record-one []
! I U8 o9 p5 Y4 C2 H H% }) h8 J0 a1 Y0 q+ M
set trade-record-all n-values people [(list (? + 1) 0 0)]
. |5 S) [) h/ q
# ^. S2 [$ R2 @- Tset trade-record-current []
8 }# h- ~! r, R! J* f% dset credibility-receive []7 n0 L" M. d a6 _4 o5 A9 k& O/ ^" l; L
set local-reputation 0.5' t! @# y! x# x1 V, w7 O. {$ n
set neighbor-total 0; x4 d3 |" [% Y; Z
set trade-times-total 0
: K9 R6 s6 h2 z, wset trade-money-total 0
6 e& m6 z( I- a3 w! \ ?set customer nobody
: R. j" ?! S m) oset credibility-all n-values people [creat-credibility]
; s! z* f7 t$ r- b0 `set credibility n-values people [-1]
& Q, F q3 @' D% P2 i! {2 V2 Dget-color- _) c( ~3 ^& O4 ?3 L
* L! g1 E9 O) d" Z+ {% D; zend
3 f0 X' n \6 L6 \; Q/ z* z2 G# [; K; x f0 ?6 b% t
to-report creat-credibility
# V0 j, l: q( L( mreport n-values people [0.5]
3 _* Y! K0 v5 u. x/ d- o- eend: C7 `2 ]# }" @9 z. J) j( M) A
6 g7 d3 H2 |1 ~$ O5 K: _
to setup-plots0 w: [1 k. s/ l% ?& P2 G
4 ?' d7 R! r- i6 ? |. g) K7 G4 Rset xmax 30
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set ymax 1.0
3 r5 f. n; `7 p! j8 v
% F6 T! `6 a7 b `% vclear-all-plots
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# N: @: L' n) C) {4 vsetup-plot1) f8 x a7 o: q3 V Z9 N: r
) M4 @+ B& t2 ]) k; c
setup-plot2! U( X! @ q- H5 M; j
, ~2 U7 B4 Y; {1 ^$ U& T3 o$ c- L
setup-plot3
: o! ]3 g9 k: p' N A, E1 l9 lend
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;;run time procedures
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( P( ]3 o) a" B0 ~ ?4 Fto go
! s% [1 B( N, b" }; q1 s, W
" O" U2 Y; e# Cask turtles [do-business]
2 f- E' Y q `) Aend
" ]( `# F. t4 b: K* l' L$ U* f" ~0 d
to do-business 1 U9 ?& b; t) x& ]1 n7 M/ p
$ y k7 b/ T0 F' ]: G5 @" y' _# C% H6 I3 e% U9 P7 y; [7 Y
rt random 360# ^+ O. y, d( x# P1 F: l' X# i( F
! M# ~7 O9 [# {1 M& kfd 1
1 f2 \6 L2 K7 b1 P0 E$ u
) [ Y! A8 D7 iifelse(other turtles-here != nobody)[$ C! R/ f- U0 c2 z% T
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set customer one-of other turtles-here
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; ?+ q7 l8 L4 C" i& K* r% O# O;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
$ Z( c$ b$ s6 M- P[trade-record-all]of self i# O3 n) @& p# B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 M; Z3 f, w+ u+ q3 D5 N
& x& n8 l n' M; {% Gset [trade-record-one] of customer item (([who] of self) - 1)
, J% Q* u, I( P/ `" N' V# u[trade-record-all]of customer
, X% X t- c1 L0 t1 U0 b0 Z, \' o7 r+ j) n; U1 _
set [trade-record-one-len] of self length [trade-record-one] of self
, ^5 q7 O5 T5 Y
2 T3 j5 L; G5 @- w' _set trade-record-current( list (timer) (random money-upper-limit))2 }, ?8 ~: ?9 y! I4 l
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ask self [do-trust]
; \9 C" v y; n. z2 R;;先求i对j的信任度8 W0 g2 j! C% f& Y- A; G( }
( ]. F2 @% I* k. w
if ([trust-ok] of self)
$ l8 A5 ?. h9 o6 v: `;;根据i对j的信任度来决定是否与j进行交易[( K9 T" s' X) c ]4 O2 R% ?2 B3 ~
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' C4 r- [" ^5 M4 Q' h
2 m0 P, S' q5 g8 ^. T$ }
[
% w0 L3 M: u/ ~$ c4 d& e
& r* g+ i; C& i$ B) v) L: cdo-trade" Q+ t' l% y6 n: x! {5 q: F
; I8 q9 q6 U* N' V" Eupdate-credibility-ijl
+ K$ T1 {( A% z i. e" k, b( D. h! H' T4 P4 z0 n H
update-credibility-list& ~! U$ N( c3 x
: b0 a$ [! M8 I$ @9 L) m
" }( K0 i" K( u* R; Xupdate-global-reputation-list
# d; p( h- Y) N. s0 m9 E9 T* l6 ?% x3 E
poll-class
3 k9 v# j- g5 \ i
; v7 Q( q+ E# X/ h( `get-color
% K$ l' U2 S2 N- B9 Y( I( t
* r" m& H* U6 l8 R$ c3 _/ }2 M]]
' r9 ~$ r x! w ~& G% _" h1 E* G) l4 Z* s, @. W1 A
;;如果所得的信任度满足条件,则进行交易" H1 |0 t: i* V+ a" u: l: Z: f
! K6 m5 h! ?1 O0 A7 ~+ m[
, o4 { L: [ ?) U I: a7 u
K b1 O6 l. k( brt random 360* q3 o% c& J0 {$ n2 U+ W
, e0 s6 R. F) r! d; nfd 1
) _( @' o7 d5 F0 t _1 \9 y8 ~- ~0 ]. }
] [6 A3 C5 v$ M( F3 L2 |
4 F5 c/ B2 R2 N8 k/ T3 S. r# F1 send6 F- X3 Z7 Z, j
+ D; Z' y5 J" A4 p1 D- K) U
to do-trust ( m- W1 ]" i+ h
set trust-ok False
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3 G6 s, l% A, h: w2 ?, ?
let max-trade-times 0
$ j( _2 }4 i% k7 d" J! wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ `$ m& j2 B& F
let max-trade-money 0
# M- y/ x T$ D6 H$ |6 ?( V7 x7 iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! R7 R( B( C! D! Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 @# M- m" {9 }6 W9 b" t
+ D$ ]- E9 j; J: Y7 h' L4 [4 b+ D0 v* n+ s% f7 R# E" o
get-global-proportion/ L) n# |( y' D# e4 y
let trust-value/ o1 ^ ]: U4 M
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)4 c3 S& E) d, {" ]; Z. l
if(trust-value > trade-trust-value)7 B, n1 O/ `9 v2 S
[set trust-ok true]
" _ A, }# |- l2 f8 E" {end
* w% N+ \! V; j- x& w4 U2 \4 K3 b, G& p3 s$ S# J
to get-global-proportion4 g( m4 C8 q0 i+ y f1 t; J. n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" Z9 T3 K- Z9 @
[set global-proportion 0]
) j- A# r/ w* M/ r% c) f[let i 0
. T7 n1 ^8 @% a/ |/ ?6 }% a2 Qlet sum-money 0
/ o$ `$ [3 J' `- }while[ i < people]
# b e% k6 E* n[
" O8 w, q) W/ ]' jif( length (item i- L8 l8 y% u0 ]8 V" N. M
[trade-record-all] of customer) > 3 )
h# f- y( y- o[. p, X7 o5 [5 H$ B e) K0 f, G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). n' Q$ j0 c ^& N* U0 c
]
7 w) X( R( X& Y3 j/ I]5 _" [: @6 N+ W* {- D# C
let j 0
! q$ d3 ]. @5 C0 ?, O' zlet note 0: G7 t* Z1 h% w$ K) s; @2 S
while[ j < people]
9 {0 T% L( [0 L- i2 K0 ]+ O; n6 d[
* Q7 E& w. q6 i0 C' W2 sif( length (item i# s z, J7 C9 R, Q
[trade-record-all] of customer) > 3 )
+ k, E2 {9 v- Q, c7 h* b[
. l# b0 @2 r$ T* kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): M7 u2 }2 X9 y' J
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% Q0 Z+ G0 k, z: u6 z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' P u; V5 s. W" W ]
]
4 x, r5 \$ d' z) E3 y]
, s6 K; C; p( k! y& Y5 l2 iset global-proportion note1 X Z& M8 V/ y5 g3 y: L
]
8 Y# Y! B, a# N5 l6 ]+ z, G& B: _end
2 Y! u4 r7 I0 R, z1 A! T. M0 y
5 }" K) e( u& K* z" w! v7 D/ c) J7 wto do-trade) E) M! h% h) v+ Q% ?& m0 M: i
;;这个过程实际上是给双方作出评价的过程
" {; ^$ G0 Q2 u% A* V0 T# E0 A. N' C+ {; zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! n6 k B) u$ E+ l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 U. F8 A' F( Q* n
set trade-record-current lput(timer) trade-record-current+ j3 Z2 \$ I1 L2 u4 m; y, u
;;评价时间
; v: J% {, D% a$ I! Iask myself [
7 b3 Y* w1 r' Q% oupdate-local-reputation
/ |! C- D4 @# ` g. I, n* [set trade-record-current lput([local-reputation] of myself) trade-record-current
: @8 c1 m( E- U]7 V: M* I; B+ x3 L3 v$ j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 D& N! F1 Y7 F2 r- {* L/ C) V/ E;;将此次交易的记录加入到trade-record-one中! D& h+ k0 t8 p u# W0 c& @
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself); a3 p/ F. R6 y8 d' l; X" G
let note (item 2 trade-record-current )
# }$ b: O8 w: wset trade-record-current
& O* f! d/ p- W" G+ T5 k(replace-item 2 trade-record-current (item 3 trade-record-current))* B9 ?+ T8 @: b8 m1 H7 q+ i* E
set trade-record-current
. F- D& Z7 s5 ]# L(replace-item 3 trade-record-current note)4 p* [3 M9 }* o s/ i
" Y: i0 |( e" L* M5 ?2 J7 a& q% E9 @, }5 B9 j4 X
ask customer [
" o) [/ \. [& k/ l) Y4 _+ B$ tupdate-local-reputation- o2 e/ |# v9 j9 h% h/ D' d
set trade-record-current" k5 i2 ?, l8 s7 l) ]9 Q: J
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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# x2 Q3 i7 w3 V- u0 |; Y+ a, E& _) B- A
, ^; D1 A+ b: ~) ?6 Bset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer4 ~* c) @! B @! u4 p# m- O
- R& c) F+ V4 b7 T9 Hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! D L/ q7 G* p
;;将此次交易的记录加入到customer的trade-record-all中1 Z# h3 \( n- F8 p
end; K% h1 L3 ]; j; n' C) B% E+ D
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to update-local-reputation
+ l0 g- x& r) \6 Mset [trade-record-one-len] of myself length [trade-record-one] of myself2 k8 ^! b+ U6 t3 H0 o
( t7 N" }4 R* E8 a3 M+ v) s1 D; l V5 F b- a0 Y
;;if [trade-record-one-len] of myself > 3
" D+ X$ ~! E' ]5 Vupdate-neighbor-total, Z6 b6 w6 Y3 Z2 M
;;更新邻居节点的数目,在此进行
' J! c2 L/ a/ Q) c! P U# Slet i 3
, H& K$ |1 q/ d% N8 @8 w7 F J/ S% Klet sum-time 08 I l- g; n- k0 V8 I
while[i < [trade-record-one-len] of myself]* ]% t% |0 L% o( C
[
4 `: u9 A; e, L% Aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) }, J) ~: |; O+ i$ W
set i: R% I' x6 L: H
( i + 1)) s$ q( b$ ^' y& B. X+ l! |* b3 D
]
+ V5 f! X! V! a- I3 plet j 3
$ E2 r8 H+ h, l( N4 qlet sum-money 07 }2 n8 d% t+ f& {( g. q
while[j < [trade-record-one-len] of myself]% h' B% Y; u" U7 p9 k. d/ L
[
+ g( p1 j: n: o2 K& J. Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) X2 }6 S/ A l" M) h6 n3 ^- Mset j6 x9 f/ G: r6 }' C6 f% M) [4 u
( j + 1)! H, i! c- k2 y. d
]
+ c8 ?6 W, L; V' X+ e1 }8 {let k 31 D' _5 P1 E" g A
let power 0
6 p& q$ a- I8 j. ?: L- v# x' Wlet local 0' I; e- s3 {' l5 }6 e* L
while [k <[trade-record-one-len] of myself]
3 e5 `1 T) e+ c+ ~: P/ O[
S4 K) B% D3 t/ T2 D+ t2 rset 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)
6 A0 B2 Y% i5 L! \+ @3 ]& Oset k (k + 1)
8 X! m P* _+ s" m# {]
$ D: F' w Q, T; x. H/ Oset [local-reputation] of myself (local)
& [2 ^7 B, }; Y0 w, qend6 O D( J2 s5 m$ m6 j
p! }! L& v3 S& f1 Hto update-neighbor-total
6 G# ]$ B y! a" M E- E6 q: k# i9 N, q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ x. |/ F% ]( |, k) p2 y! p
/ b% p) l% D7 I# o3 {
6 l( H v6 d: r' Y. mend
6 T/ j0 Q% I3 K0 m- p
5 {3 q/ c: s, [: [to update-credibility-ijl
: o* V* M2 x7 u0 ]5 o4 ^1 d+ W; L2 J [ Z& Y
;;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。
0 U* x7 y/ v& y: t7 ]& W, r( D( ilet l 04 A; {" } C/ L: k. [0 [6 t$ Y
while[ l < people ]0 u K2 e$ v5 m8 |2 L# K; Z# ^+ E5 l
;;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)
( t: D; }, Q- m* k9 q6 Y) j) {! s0 ]if (trade-record-one-j-l-len > 3)! p) ]4 f A( ]; B+ n
[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
$ x7 b, T0 ~, C" J0 V$ B) V N. ?0 y; Zlet i 3
P. w* b/ g' ~ ]let sum-time 07 E4 ^: n- x y
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ `# F# E4 {9 Z0 T8 v- d: \' P9 Rset i
+ `9 A' Q( x- S# M) v( i + 1)
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let credibility-i-j-l 0" p" K% T) z; p1 K& H# c4 d8 I$ y
;;i评价(j对jl的评价)3 J5 U' W" h2 @( M2 x
let j 33 z9 |8 F {! s
let k 49 G1 {4 i& f1 v" J
while[j < trade-record-one-len]
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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
+ }3 v- |& g: d+ k0 ]( ~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), Q: h: g6 V. Q4 P3 t% U
set j; R, A4 s, l& {4 M7 Y* `
( j + 1). H, w# T( A6 ~5 O, ?
]( N# }: H+ d+ o; ~* h3 J
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 ))
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% w; z& y( h% P3 y; l
- M0 X% r, B3 `7 p2 ?: zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) b7 B+ U) ?, C9 h$ h4 _, S
;;及时更新i对l的评价质量的评价
" O5 L; B$ P: P5 R1 _set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- R* a0 t: [3 Z: @* j( E. y
set l (l + 1)+ D5 O$ n4 Z, q5 I! A/ u& b
]
1 e3 @1 H: w/ ]% j% X1 @* Vend r- q. i3 \% T- I% p0 a& |3 u' w, \0 A
$ `! p& N% v. P s* q1 ^to update-credibility-list6 ~4 I1 I3 z5 U, v1 n) h5 f; m' O
let i 0' v0 Y) l) j$ r! ^( [7 @
while[i < people]! o- N0 ]. d0 H/ c1 ]8 H' p2 d
[, ?; T0 z3 b) S t, ~" J% y \
let j 02 e P: P& M, O$ b- o
let note 0
( a7 X6 c3 \. _ M3 alet k 0
- t J: D) @$ |/ R' ?;;计作出过评价的邻居节点的数目
( l, T( O0 W+ b1 ?while[j < people]/ S( I- O8 ^0 _$ a5 Y) S
[
5 W3 B& U; e8 l- r% w% \* fif (item j( [credibility] of turtle (i + 1)) != -1)
3 \2 V; E$ x9 }; w! k: O9 ~3 F;;判断是否给本turtle的评价质量做出过评价的节点
: w, o" R" G8 ^$ i9 ?: F; s[set note (note + item j ([credibility]of turtle (i + 1)))
- T; Y, e: M# h% Y+ a' u) [;;*(exp (-(people - 2)))/(people - 2))]$ b) A3 ?4 E8 t* m8 \4 |
set k (k + 1)
9 h1 {+ h1 B9 |; u2 {: \]
# r- ] Z$ M/ ^! Xset j (j + 1)
% s4 c% [3 e! a( [$ S1 J]
8 ~# }1 b p& v, f- {: cset note (note *(exp (- (1 / k)))/ k)6 }# Y/ p+ r1 `. k
set credibility-list (replace-item i credibility-list note)% E* _6 }" |% K
set i (i + 1)8 z0 Y( m3 l9 M* I* K
]
+ K$ B9 {, j6 h7 P. kend7 w( L9 t, ? t* g4 e2 [' h
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to update-global-reputation-list. q# }# T6 s9 i: N( ^
let j 0
1 v( _# N3 o% Vwhile[j < people]
( _8 d6 [( f& w. E4 N4 z[ X+ @3 H. ^; H# Q) _" p7 X! I( M
let new 0& \8 Y' p/ s9 [7 V* z
;;暂存新的一个全局声誉) a# R0 B, j0 T
let i 0
# q+ c0 S6 c( h" P/ Z* Y4 ]let sum-money 08 M1 ]7 P! \; v5 A R
let credibility-money 0
2 x# Z# P5 B B u4 _) iwhile [i < people]) A# f6 p4 v s# O6 O: z+ a2 o4 U
[
* o4 C* P. ^2 f) q! i2 Wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 e( u% \3 J+ R" {4 W9 iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& i7 R& H& f; H; rset i (i + 1)
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let k 0: @# k0 F& D7 g* s
let new1 0
# [+ h' `/ q% w: z6 qwhile [k < people]- j3 O7 B& {9 i4 K4 |6 j- d
[- p7 N$ [2 v9 X
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)
0 ~9 O" G, C) B3 B: b' }set k (k + 1)' Y+ W1 q5 a, ?: v* e5 t
]
& W1 P: s! c! Zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( J; k3 L% A6 e5 A/ @5 @
set global-reputation-list (replace-item j global-reputation-list new)# K; \, r4 c( R, f/ B$ R
set j (j + 1)% j7 B5 L+ J4 S) X$ D# Y7 r* O" K" P
]
/ l7 s! J( `" A h& dend
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" ^2 {9 |% U' ?- ]$ \* {
0 `# c% W$ [ X! O/ \to get-color
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set color blue: T. A& R/ E0 [( D g
end
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to poll-class
! {% e) \4 G) d# I }! z* y2 V0 Cend
! o* `6 N' E9 e) {: q2 a7 Z- r& D- s; V1 e `# x8 j% V4 N) X8 o5 \6 q
to setup-plot1- M6 F1 }) s: e' a# \
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set-current-plot "Trends-of-Local-reputation"
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5 |' ~+ l9 q* ]6 X9 rset-plot-x-range 0 xmax
5 D; u4 W" x- S0 M
7 a, e: C5 z$ x; @set-plot-y-range 0.0 ymax" o8 ^+ r9 }6 W, d
end
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to setup-plot2+ I0 t: u8 H5 l! p9 A/ H7 u
- m9 d2 b Y) O, Xset-current-plot "Trends-of-global-reputation"
; r4 N9 ? E+ `- J
6 U& _$ @' P( `+ k5 I, z! i) r: |set-plot-x-range 0 xmax: ?+ l5 _3 V* f6 c9 z& S! C
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set-plot-y-range 0.0 ymax
. ^6 l: M2 h( I* L0 K/ D. Q3 Vend
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to setup-plot3
# z j" g9 u8 ^. m' K$ s/ }) \5 E
4 Y. c: X9 T% l/ E' S- M3 Zset-current-plot "Trends-of-credibility"( W- R" R! c. y S; Q& L: l4 M3 r6 X) ~
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set-plot-x-range 0 xmax* x# J" C% Q& [! ]6 A8 E0 e
4 @& w& `4 V$ w* d$ k
set-plot-y-range 0.0 ymax
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% P, A+ ^' r% pto do-plots5 P3 @: R" l9 g6 L9 z- Z
set-current-plot "Trends-of-Local-reputation": P$ Y% @* {! x8 z( y+ E
set-current-plot-pen "Honest service"
* K! {9 t# Y7 y3 w- I& `$ xend
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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