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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/ M9 c1 g. c9 x( Y6 W3 x) j
globals[1 C0 p& g. O7 ?9 W3 V7 ~; g8 @( n
xmax
2 S5 E: n, X* z, q0 a# |8 ?ymax/ @1 W* ^ w/ T+ p/ y
global-reputation-list3 M$ G2 K$ O1 `7 e% e* y# C
5 _' z4 w+ L+ ^;;每一个turtle的全局声誉都存在此LIST中
* r/ E" u& p" |6 Ncredibility-list
/ A' V/ f4 A* k4 z, c) d;;每一个turtle的评价可信度
3 a* w/ l3 X' n" \+ }6 X+ }: Jhonest-service
- q: t# C. ~1 x6 K# Wunhonest-service u2 F2 m$ l# N
oscillation
& v: i# l3 [- k& T% l# G6 ~rand-dynamic4 g. @5 L4 z! g1 P4 h, n
]
+ @4 N) Q2 G$ `7 d) ?
+ I: Z9 j; @8 j( N( ~8 ]7 }turtles-own[$ d5 g7 O; D4 x( F) N
trade-record-all2 Y- F* ^2 E) f/ w
;;a list of lists,由trade-record-one组成2 i6 a7 i. R/ R! c9 R, K0 ~
trade-record-one
/ v: V, z; ~$ a% u;;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 D# K3 |: ]* m, h; {( X
* M3 L6 Z7 l! Q* r0 H;;[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]]- e% s9 P4 W/ \2 ^
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]- }* o- ?) S0 z e/ e( J0 q& |
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, Q3 [& z0 F: y) b& U8 U8 }5 m
neighbor-total
+ L) U: `9 h' P# K. _3 Y6 Y;;记录该turtle的邻居节点的数目
% l) b" @0 _, l2 ctrade-time2 R# \! }5 F/ O- T# d0 z
;;当前发生交易的turtle的交易时间6 R# ?7 d9 G6 O. E; e/ T
appraise-give4 P @( ^4 J' M" h+ r- O; E
;;当前发生交易时给出的评价
$ o5 Q/ f0 ] L2 ]appraise-receive9 ?; c( a; ?' }9 g
;;当前发生交易时收到的评价5 ~0 Q1 I1 B- [9 Z9 A
appraise-time
4 d% z: Z/ W* E, p;;当前发生交易时的评价时间
( [# j" `/ v! j! ]4 mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉" N. l3 K; g0 n
trade-times-total
2 C8 D) d8 d. F1 a9 h; ~2 r6 m, @ L;;与当前turtle的交易总次数
- I' G3 m: h3 @' k. @+ e! Rtrade-money-total
' ^6 L, f6 i; E; F+ b/ `;;与当前turtle的交易总金额! r) n( {9 |5 Z5 \0 n. m
local-reputation I. C! K8 F0 T
global-reputation& b! S# {5 @% o4 J+ t
credibility
+ N2 k- ^' H0 o* G;;评价可信度,每次交易后都需要更新
5 I9 `: \' F# n/ ~9 xcredibility-all; Z0 \3 e' O: p3 F7 e5 B8 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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- _2 |6 L1 V* Y6 S) Z;;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
) R6 s3 }: s9 ]% J/ V ^* |credibility-one* i3 |) k/ ~5 [* N, D$ a& q
;;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
8 y1 i( I! s- h- Q1 Yglobal-proportion
/ _7 J% h# C8 u, r# h1 m; scustomer
; X- o9 m E, |: R% A& ^customer-no3 U) _" w9 p8 I+ s6 S) ^6 B1 l& B
trust-ok' H0 ]/ K$ D$ g
trade-record-one-len;;trade-record-one的长度' h3 v: d0 @8 x8 I; x
]
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;;setup procedure
3 _7 u4 \$ h) u. F
6 l4 M( z3 z+ K, \4 gto setup
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ca
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initialize-settings9 B& s; `# L$ `1 y
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crt people [setup-turtles]
6 {; R0 G: A9 S0 f0 P: u; C5 p w0 i- Z( v8 {4 w& L9 X. i
reset-timer
5 ?6 a; y6 `# w Q E+ _. {( @" q7 f9 T/ v2 C* X8 J8 D) L N& z
poll-class
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setup-plots
_# a! ]7 M9 \8 s# m" D8 ?. S0 Z* g* Z
do-plots
+ c) q! V9 m! I e4 A0 Hend
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+ P6 o! O7 }' X0 t; v- zto initialize-settings
, N( [# T% C6 [: D, j6 F
8 h; y4 H5 W' E3 o1 |: H8 G Y; Oset global-reputation-list []
# X l' k7 b1 n j/ L- K3 R |) z9 ?8 v( p# U) M
set credibility-list n-values people [0.5]
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set honest-service 0
$ |+ I+ A( {" e0 G7 W
9 l2 J6 w3 {* x* A4 e4 C. gset unhonest-service 0$ K( L* q" a; F9 T5 t
$ D% x, A2 Y& u$ |set oscillation 0
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9 @. ^: \2 h0 `+ Vset rand-dynamic 0
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/ A4 k+ }. Q$ ~. N E" g
to setup-turtles / A! D) [- R8 W3 V8 L$ Q$ R
set shape "person"* R! r, j( G4 j3 ?( S
setxy random-xcor random-ycor
" e: F' M; E; W) ~( \/ ^( Rset trade-record-one []
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" {' v5 h/ w4 l; H5 S. k8 Fset trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
+ L' l/ @% W$ Q( L7 U( w+ ]% Wset credibility-receive []9 u4 S; Y2 j: z+ h( v
set local-reputation 0.5
/ Q! d+ u$ n. L1 o' C9 \: @& Wset neighbor-total 05 r9 Q1 d6 N! H, A
set trade-times-total 0
7 h! v1 Z- \+ E$ b3 J8 Lset trade-money-total 0
, K3 x% Y" q+ nset customer nobody
3 s% N1 F t& \1 p' {/ m% Kset credibility-all n-values people [creat-credibility]* @7 n$ t' o9 G, N( Z! `
set credibility n-values people [-1]
9 n& Y8 @$ R- m- x7 m0 Z& w6 Cget-color! w( a- E/ q1 u9 ~( x2 m
- v8 M4 O ^: A1 R* x Aend5 ]& C1 f' Q8 ^4 {
6 u, ?) [3 T% p7 P5 G) x% }
to-report creat-credibility
8 c- h7 k6 y8 o% w* L6 V' _report n-values people [0.5]
7 D% B1 o5 x+ i T. z7 ]4 Aend: l0 E, A2 a' K. u
1 s: [+ q1 z' z. c! L: jto setup-plots
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set xmax 30, o2 Y" j L* o3 f
1 Q, F* u9 V. T; w) q) G, m" D$ {set ymax 1.0' n+ L( G5 s5 w# B% u& |0 j0 p( b4 q
; {( p! [2 s9 B3 c7 ]# n+ S6 Cclear-all-plots
7 _8 b) O* D, L2 J
& G! K& X+ D" m G0 A2 ?setup-plot1
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( k* `2 ~3 }( n- W, Z4 Csetup-plot2; [9 E+ o$ f" i
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setup-plot3
+ y: Z+ q1 p. g1 f& qend& u# |( e$ b+ F
5 `# H9 W# s4 z6 r5 b4 p( ? N
;;run time procedures
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to go
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ask turtles [do-business]
! Q. R$ B4 \6 L$ i6 |. u# S6 cend
; P+ F' ^4 `6 Y6 V
4 {- Z* ~4 _/ {( [to do-business & Q! Q: f" O8 E" J! j3 x
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V, N; ]! {3 ]rt random 360
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fd 1
6 z5 x" `4 [- r3 ?4 f1 |! E X
/ Y/ i4 W9 r4 k2 Y' g9 z- difelse(other turtles-here != nobody)[0 E9 Z4 z: V* r. q( W7 a6 G3 i
2 C+ v" z2 |5 K" i: o& `
set customer one-of other turtles-here
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& z& z" d( V2 |- Z3 s2 j4 N; M f;; set [customer] of customer myself1 |+ S& j# P9 g W3 C$ p; y9 f
: G; V9 J: b) ?0 l M! W$ lset [trade-record-one] of self item (([who] of customer) - 1), n0 b& f, T' C+ \- y
[trade-record-all]of self
( J4 D1 r$ w- I7 j7 O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self" N! o/ L) ~1 c2 {+ E4 ?! L
; }) ]9 v) G- e: _set [trade-record-one] of customer item (([who] of self) - 1)
, ]9 t* ^2 J4 q1 X Y. L[trade-record-all]of customer, m) f, O! c% C6 N
' B! [- \4 a( n6 m! B2 w8 z cset [trade-record-one-len] of self length [trade-record-one] of self0 @4 y7 O0 n1 {0 w
; ]- ?' H* T! N& h& D5 E' Oset trade-record-current( list (timer) (random money-upper-limit)): W3 b) e( n; C S& F
- A& t8 N# _4 P/ p" [' cask self [do-trust]
% j3 D* X+ z% m$ V/ X- M;;先求i对j的信任度8 Y) k; ^2 M" y$ G7 p+ p
3 \1 X; N$ H7 O8 f7 i& K# F4 Vif ([trust-ok] of self)
- ?6 |: J5 D! `% v' @5 j;;根据i对j的信任度来决定是否与j进行交易[% o$ \9 r( ]* ~# O3 y% [1 N
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 N, \& a, c5 ?6 @
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do-trade2 ?0 f- o: v. s% D8 w- }+ I7 Y# @
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update-credibility-ijl
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update-credibility-list
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9 { f1 X& Z# M) E; b6 ?update-global-reputation-list
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poll-class" v; L; N9 q; b& d# N7 n
! ], s$ ?. {6 r$ cget-color1 G' j4 U7 L- Q' L7 n& Y' V& x! B- C5 j
! H7 _7 @- c0 {: @
]]
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;;如果所得的信任度满足条件,则进行交易2 k5 U4 n. C* [; y7 K" Q
1 n: y* {$ e2 e! s/ G6 W( S[7 b0 f. _* _' I' ^# a0 e/ j0 _
0 u. O3 o$ V: S krt random 360% i+ _- j% V& l1 p- {* D
$ L9 m. i2 x x5 g/ t$ H- ofd 15 S" `$ v' y: j- M0 t
3 B0 S4 S' g! M: {# [: []
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+ N }7 p# F3 tend6 @5 }" r* {9 i2 O7 y6 d+ K2 F
- `7 b3 V1 W. I2 P& Q6 v- e
to do-trust - V4 z( U% i/ D) |
set trust-ok False
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let max-trade-times 06 T( s) {. k z5 R* I. s/ |" D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ F# E/ [7 d( r7 p& \7 x
let max-trade-money 0
" L5 C. t* U8 e" }' p+ ~& R7 f" ^foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 v# ~6 |& Q X$ b: L' g
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 x$ K+ Y5 Y0 T& k- u3 v/ k% Y5 g! K0 ~! L2 }
" g. K9 x: Z2 a9 w1 Nget-global-proportion
% Q, j/ R) ?9 Z9 _* {let trust-value& ~: v* T" V& ^1 B3 z
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)3 e: g4 T; u0 L7 n4 u% t& C3 a" w3 U8 A
if(trust-value > trade-trust-value)) n) U& v2 b2 V. o0 K4 C9 q7 x
[set trust-ok true]
( n5 T x/ N4 G; l" ]end
3 T5 K# t7 U$ y7 \
, ] ^/ y. o, oto get-global-proportion
, }$ n' f& a4 s8 _8 S# i2 g$ h) @ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 ~: m, [( M5 Q" I( L: T
[set global-proportion 0]- H* Y7 G9 ]' R* b: h L
[let i 01 x2 l9 P: e" N) o. f& L7 ?( X/ A
let sum-money 0
2 @3 X: I; a) `- \ fwhile[ i < people]
' `5 |1 i- c5 \4 [[. _, M2 p* Y" ~) Y2 ]" c S, M
if( length (item i+ F5 K# S, M# [% j) ^: o
[trade-record-all] of customer) > 3 )% @' g9 \0 B# a( H
[& e' n4 J/ {0 L! p
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 s: B# b- R1 `3 ~& t( `$ n]; s6 ~' z( w3 g l) V k) @
]5 o2 `3 p1 m; g" G2 W# D
let j 0
$ v* p' `8 f; w0 ^* M5 O Olet note 0
3 D' Z- `! i7 mwhile[ j < people]
6 s: t' I9 x: h& S7 G& D[
6 X( \3 |) o) ~, W; fif( length (item i
, M( k( E! V* B; m {, N; w[trade-record-all] of customer) > 3 )
7 h" r$ H/ n5 g% P7 c" P[
# \' b! ?% h+ j2 A8 m7 v$ [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" D! \9 s# h4 P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! ]" W5 L# o' B% S" w& t( r# |1 B
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] x: A }0 p: k1 [6 Q& {
]
6 A* f0 Q6 R `* z; I" }9 T]5 {) B* W5 c% }1 `: G
set global-proportion note! ~7 f" z3 p& R% ~/ x
]+ n- Q4 ~$ o: O4 t
end+ X" s% y: H% A3 d, x$ h! f
' e5 ~4 y' L4 {/ m) q0 F$ Bto do-trade
A; X$ g( r9 h/ ?) \;;这个过程实际上是给双方作出评价的过程9 w0 k. t* Z- [" Z# a* ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价$ H* p8 @" u" r! i8 @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 Q- P; {. n0 k5 e* G+ `; s
set trade-record-current lput(timer) trade-record-current
* N: y8 i. g' F v$ q+ a4 D;;评价时间# j4 F; A& q& x5 h& ~4 n- P
ask myself [- Z7 @4 \, c) G7 c& _. e" j! g: P
update-local-reputation1 |- |7 ~5 Y8 Q+ \, i
set trade-record-current lput([local-reputation] of myself) trade-record-current
9 h" G0 \, p7 O/ Y]. W5 w% X) r. U
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& @8 T' b+ j! Y" e( X* Y;;将此次交易的记录加入到trade-record-one中
7 L3 h2 g' w1 K) Dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ g* G: b# ?) ?& {% M7 Elet note (item 2 trade-record-current )0 s9 W1 a4 I: A+ T- \
set trade-record-current: b* @$ O( J- `3 O+ e. ^
(replace-item 2 trade-record-current (item 3 trade-record-current)). i9 U4 G o# K) L
set trade-record-current
- d/ X! y) {4 i& r9 K5 C(replace-item 3 trade-record-current note)
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5 x! O3 x7 u% S$ x
/ ~4 P3 d% U# rask customer [; b( F9 {6 p7 Y
update-local-reputation
% ]' n; S- x! I3 c. Uset trade-record-current
% G$ ?) I j+ `% i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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2 ~9 D6 F; ^+ Y: K- k1 @- i z
1 _. \. i" y% a* Aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 `! H/ C" ?3 Z' K7 |
) M8 t7 X5 E8 Z4 E; G9 `% ~* Cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( U0 W+ W6 n6 a* G3 G
;;将此次交易的记录加入到customer的trade-record-all中
* J1 W1 B' U( i& Wend
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to update-local-reputation! a- H1 y H5 d* p0 Y9 m
set [trade-record-one-len] of myself length [trade-record-one] of myself
2 M, ]* @5 F- R @+ I: y* u
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;;if [trade-record-one-len] of myself > 3 ( u# N# ^; O# [; [) N8 v% q
update-neighbor-total8 @' m$ ^' e, W4 a6 G/ C
;;更新邻居节点的数目,在此进行
- q9 W- k6 U; n2 Z2 ulet i 3
; F0 a+ i- g; e, {' h1 I4 L: v$ Zlet sum-time 0
8 l0 O' _, M' Z3 G7 F0 m+ L! Fwhile[i < [trade-record-one-len] of myself]+ \. o: p. t( |* j* a
[# P" A* O- ]# p8 L
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* m8 x& M1 R/ w. ^
set i
' S U* d' { X% |# o- |+ e# D( i + 1)8 A6 D8 e# N2 t E
]- V8 \2 B0 ?) n: D
let j 31 o% w+ z! ]% S! H9 v
let sum-money 0
6 Y) H3 Q- \$ x; Cwhile[j < [trade-record-one-len] of myself]
9 J+ W2 C/ n T) n2 y& Q5 i6 o3 G[4 R" Q2 M* V$ y5 G: y
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)$ r# k" P. X# o2 n+ l
set j8 d& N! M" e6 Z0 Q/ l
( j + 1)* o* M0 q4 X) z( y9 x# W
]
9 m# I. _7 r2 h7 [" Flet k 35 q6 k1 k6 `; ]4 v
let power 0* @3 Q% m: ^( m) T6 u6 e
let local 0; R; i; _& v2 t% Z+ n
while [k <[trade-record-one-len] of myself]$ H' p/ ?0 O6 G/ M) ?9 N k
[
, j( _" o" L. Z+ S. N& iset 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) $ U& R$ P( b1 `. a$ a( t/ _
set k (k + 1)
" A n5 @2 _3 }$ P0 F% {]
5 e' z. c. Y) K: R2 }set [local-reputation] of myself (local). B2 X& {" Y2 ]) k4 I
end. H$ R* m9 `( S+ L' A/ c
1 ?' }+ K+ l+ [$ U# Q0 D1 X0 D* jto update-neighbor-total) S2 ?5 m- `% b0 z; I6 R3 v
* K( I. J( E7 L7 b& }. d X* p2 e; `if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 L( H. p/ Y8 g; O. ~0 b1 g. |" m) h5 r$ Z+ r0 Y, k+ G& S% _
" i' Q7 g# h. `, @! [2 U$ Y: U+ Yend
! D( x- x- X/ Z- b$ A: q( V# {% `! ~3 Q# c/ X
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。
9 x; t* I z3 r' }0 X& Tlet l 03 n/ r$ R6 M! d* ^0 P
while[ l < people ]0 o+ G0 V3 _( z3 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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 U" m5 X& Q! {' G" I0 Y
if (trade-record-one-j-l-len > 3)4 I( m: }9 }, W- d$ 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-one4 D) k1 o8 C2 o
let i 3
# I8 y5 b5 [9 ]! Zlet sum-time 0
% j- `3 U% K$ O, [* Uwhile[i < trade-record-one-len]
1 J; j- [. D, I" w0 ]- S1 x, D[
9 Q& L3 k/ q- K6 wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# Z3 r0 Y f& A) J7 j- Iset i
6 P* l6 Q* G/ T9 x$ P8 D( i + 1)3 G$ Y& m* X- Q6 _
]# ?! T7 l. @( S0 F/ Y
let credibility-i-j-l 0& H# w* F; u' y, e
;;i评价(j对jl的评价)& I5 O7 O* f, w# _$ C& o: o
let j 3; C3 r5 j, o% b/ v2 I+ a0 _6 U6 l; Z
let k 40 y& t/ v3 V8 _: D. C
while[j < trade-record-one-len]1 n& O# Q# I, x; {
[
+ z7 S; Y4 v( 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. H0 N; w3 k" |
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)
4 u( v+ `/ D8 i. w) y) w+ b1 R. `set j
5 A: ? n7 V: `7 C7 {( j + 1)
" m+ t4 i, J6 k]; m. W+ I. B' u0 P/ B
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 )). ?! a* u0 L0 q
2 Z5 I5 \# x- w# L/ z
5 h. K1 ?+ u8 A) y5 \$ P7 N! R
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 w8 E+ y% S5 \8 O2 {
;;及时更新i对l的评价质量的评价( V- y6 F1 Z; a( X+ G. {0 p9 s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( m$ i6 {5 Y$ G1 Z+ X: t: Wset l (l + 1)3 S# [, l. r* Y0 E+ o
]4 H! O, q+ A$ v7 k& s# w7 m
end3 `+ l% d( m1 t/ _, {1 G6 q
5 n6 p% @( X# F( \
to update-credibility-list# @; `7 f5 k5 c0 _% j
let i 07 z. Q9 U# z1 N, h# H) S. ~
while[i < people]
+ r5 j5 ?- E( v+ b7 U2 |[
{: N5 x; u: O- c6 dlet j 0) N% m' u, n6 @" H2 l& b- n
let note 0% L( Y7 a1 x' I; ^8 v. q
let k 0! O2 Z& O; Z% U% s$ Q! D# t
;;计作出过评价的邻居节点的数目
/ g3 y* ]- J- B7 q5 awhile[j < people]
$ ~6 d; z; `) Y6 C[2 A3 a2 c0 w: U9 c1 o
if (item j( [credibility] of turtle (i + 1)) != -1)
! {9 o2 H( j# P6 b; ?;;判断是否给本turtle的评价质量做出过评价的节点
+ f9 ]! c0 c/ T- b- I. W[set note (note + item j ([credibility]of turtle (i + 1)))
: ?. R% b0 K% };;*(exp (-(people - 2)))/(people - 2))]* u1 U6 V+ S( M! i
set k (k + 1)
9 ?: ~$ w" W% @$ a, ]' w] y6 h8 {8 C1 r5 i/ J6 }
set j (j + 1)
( O: _# T4 o$ J2 g' @8 r]
, ~, e8 w8 r, i) J5 c: D: Wset note (note *(exp (- (1 / k)))/ k)
- m9 V& W1 h0 l6 v" Zset credibility-list (replace-item i credibility-list note)
) v1 J" U2 ^& _) p0 t# _set i (i + 1)( J6 ^$ |2 T7 I W. R1 @4 T4 X/ y$ Q
]
R# i. t6 {. Q$ n5 f5 Hend/ k( u& c* w* p$ a; d
# J0 U0 H- d/ H# L$ q: }5 G6 u: ?to update-global-reputation-list4 ~5 O: a# j; v q4 b. d
let j 01 u7 R+ l# r; A* s7 a2 y1 `
while[j < people]
. L. l- k# e* h[; D2 r* E6 E w) u' E/ ]
let new 0
+ D# x; _5 l! w x7 Z;;暂存新的一个全局声誉
& X" F" {/ P5 r6 `% klet i 0
$ c+ }1 |. l' q8 {) y$ N! q0 \let sum-money 04 n/ i t4 m( g' W6 | W
let credibility-money 07 n5 `/ r8 E2 |- g5 k4 ]
while [i < people]
+ `) a7 ~( Q. g0 Z[* q7 c& v5 w1 w; M' {: _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), a1 D4 M, h/ t- T9 N4 h
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. A) ]5 X$ Y; y1 `9 J) Oset i (i + 1)' D+ U3 m9 [. ?+ Z) o( h. ]
]
" ^. _1 F7 Y2 A1 rlet k 0
3 C3 a$ y. d1 q& B$ ^ }5 N" E8 Xlet new1 0
: t4 T1 ~4 l3 ]) \; s* L( a. Qwhile [k < people]
) z" p/ C/ Y0 r4 M[- {3 K% }# y6 C; b+ Y; F- v7 L
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)
+ e% s1 P, R! l, Sset k (k + 1)
9 V* d0 l7 c- Q" c; q2 R! B] @( Q n4 ^/ `+ R. T, L2 B# j
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : b: i$ R U: h
set global-reputation-list (replace-item j global-reputation-list new)
- d6 N, g9 z* E2 j) Y2 eset j (j + 1)
# X3 ?9 _8 H- N2 [], r( Z) H6 g8 `. \1 J3 p! t7 f
end
! L- e t/ o6 I5 `( f
1 E$ q+ J/ ]6 r7 }! Y2 ^6 n- K9 E k0 B& o2 U
; _+ M# B- c+ F4 D. ^0 b( B b/ Cto get-color
1 G! c1 C: q- j+ ~/ t4 N
; Y4 Q3 ?. w" \: d0 l+ e. W7 P/ ~& \7 Cset color blue
& P$ w( J' _# k7 s5 C) w& {. Uend& d. S) y: v- u8 H
: w% U4 F; Y) ^* B0 a
to poll-class
0 I/ O+ B6 s; i y4 v6 y* Tend0 m% W/ b, R; w2 {/ E
2 R' [2 w# {( J m, j4 D% `, c8 V
to setup-plot1
$ \5 b9 z! l8 k! m: ]/ V
8 N7 _) E! @' [9 e) a q3 g6 L* cset-current-plot "Trends-of-Local-reputation"
) F" p8 J9 x& [# F9 V3 i
' r# c; k% ?6 }set-plot-x-range 0 xmax" R" I; M, \+ G
7 G6 m. [! C+ ]) g6 J3 {6 c" Iset-plot-y-range 0.0 ymax) u+ L' `: f4 z
end
3 g& y; R- _% s: @ O6 ?; K2 K
' E3 p+ ]0 m# h# ]" L/ u6 w/ U+ cto setup-plot2
1 O" [9 J6 y' [: t# x0 Y% }
6 ~) M7 \, f% u5 xset-current-plot "Trends-of-global-reputation"8 h# C. [8 k# b- H: D8 g
+ L+ L. c c: R# Yset-plot-x-range 0 xmax2 T- l/ G) |% Y# o2 |8 I
2 M$ h y, \' Q8 U3 Uset-plot-y-range 0.0 ymax" W- S% J( w- h& v a8 ?; i
end: } ?: D7 S7 A% {( o6 ~' G
2 r) R# B4 l7 p1 }) q( ~5 D
to setup-plot3
: e( N5 g0 g4 L5 P. P! x+ ]5 u) k3 y1 l3 a0 K
set-current-plot "Trends-of-credibility"
5 x; c. y3 Z7 w1 `! U4 Z: v" m0 g6 N+ R. O; A
set-plot-x-range 0 xmax
3 a/ @: n! C3 K: e* Q* I+ p) A7 g, R& g7 Z
set-plot-y-range 0.0 ymax
! ]0 y8 G; [ L1 O _. {1 b; r$ V" M& {end
) I: m4 v6 x9 e' h/ f3 m9 \7 b
: \) R' P/ U5 B5 y. E; ~3 p" H; fto do-plots
, w& U$ C1 u5 P; X7 _! C' D; aset-current-plot "Trends-of-Local-reputation"
$ h4 @3 y. u% @set-current-plot-pen "Honest service"' q2 p# c$ i7 K7 H& T% j
end ]& h6 s1 }9 s: P2 f* s" K
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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