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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+ K8 L' G. B) z& ]9 i
globals[/ F) a6 g- d$ ?4 [* q
xmax
) ^% H* j. Y8 g/ L" g( }ymax
3 j5 I9 C+ W; z3 a5 d0 h: Sglobal-reputation-list
# H( v# V; |8 ?3 D% n0 P4 e0 Y) e* `, d8 |+ }2 [; C+ a$ d
;;每一个turtle的全局声誉都存在此LIST中
" b$ ^" m; S' m) `) i- Fcredibility-list
- p: X6 z( J8 S4 S* g7 Y. N;;每一个turtle的评价可信度
7 \" l' V' }1 r! U( q( V! phonest-service
7 B m$ M9 z2 Q8 D' T6 _unhonest-service
/ f3 `0 V* g$ x0 e- h( E+ Voscillation: {8 L& Q" X0 Y& j/ Y* l9 t. h
rand-dynamic5 G/ `9 g d( J6 ?
]
0 |4 }& y; M8 G, J
# b _+ Z# @! {# a( Cturtles-own[- }; Y! f5 P- b+ x
trade-record-all" z2 E0 P+ u, P: q8 w5 q# H/ I2 i
;;a list of lists,由trade-record-one组成3 m1 t# ~* U R) Y- D
trade-record-one* V s" ?1 b# ?0 u5 J
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 ]- y+ N K: V1 v4 [+ Q
: p) p e4 D1 y) V! S8 H) ], k;;[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]]( [3 m) I4 n+ @. j( n
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]- f' r5 x# B w* H t6 @
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list6 }, i" {0 s4 i) t+ G# S
neighbor-total
9 X0 z4 c4 R( U;;记录该turtle的邻居节点的数目
; I- _, @" J( i& h" ytrade-time
1 M+ G6 b' g& @;;当前发生交易的turtle的交易时间( S8 W4 V) r1 R6 G X* j
appraise-give
/ I% B; V- a+ N" O+ ~) Q;;当前发生交易时给出的评价1 _. N/ J ~0 l" Y
appraise-receive
! D# }: U" b1 i# q' p;;当前发生交易时收到的评价
9 p% [0 M( G3 l/ P4 _/ I% \% j3 ?appraise-time
4 P9 o9 g" H! ^: w;;当前发生交易时的评价时间
. O, F: }; C2 Y4 m. b- elocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
% m( z. D0 [4 E1 C7 ~8 ~/ v+ Z% xtrade-times-total
1 m% f$ z/ P* }7 M. y/ r& N;;与当前turtle的交易总次数8 S) {1 ?8 ^, G* _2 V
trade-money-total
! |9 M5 q8 u2 F! A+ ?% P1 W5 M;;与当前turtle的交易总金额
, \% h6 ]! s, Ylocal-reputation
; ^6 x) h! ]( y8 ]7 Zglobal-reputation
0 }( l% c- t: ~, zcredibility
3 S- m: q& v( W/ w% z;;评价可信度,每次交易后都需要更新' m) \! @5 G5 {
credibility-all4 |, C4 f4 u% v( E
;;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" |9 D/ M( S: ^8 q
/ K$ d$ a: V+ w5 G# I) |' s' ~3 Q;;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
, ]* [, P* S' Z# E0 Gcredibility-one/ d% ^. f) s- v$ I$ t" 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; P4 @% I' f# f! l) M% m
global-proportion0 U4 e; B' z# X5 s
customer
# i" X( ^6 b' D, H8 Ycustomer-no3 R ?* o& O3 z. j, G, U
trust-ok
. c2 t3 s; s8 x P4 T+ S! {trade-record-one-len;;trade-record-one的长度( \% e* ~) h* N4 ]) y% y+ p z
]
0 h E( g% w8 `3 Q9 g
' g" S J) p7 `, D* k;;setup procedure
0 u k4 }: K+ \' B, K
, _2 u; P4 ?: T" B: m9 U# J: Xto setup
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2 Q, q) k% Y* W% Uca
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initialize-settings, l* v( X4 Y. B4 k+ c) u; @ ^- V
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crt people [setup-turtles]
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reset-timer
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poll-class' \4 C. ?4 u$ |& V
Y- B+ c7 B% R9 S; ^
setup-plots! A; w- L1 y- r: |" D7 m" n
) h% ]9 h: _% V5 @- {( y' k" W
do-plots# ]/ B7 T( ]/ ]( D5 m
end
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to initialize-settings
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set global-reputation-list []
0 c3 n3 G, j: F } w( Q2 Z$ V# }3 d& G
set credibility-list n-values people [0.5] R) A6 l9 e7 t/ d
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set honest-service 0
# ^6 P0 Q, ]7 F6 a" p$ _# g1 f8 k( \( T2 S: e# @2 O) O' B- H
set unhonest-service 0
# e8 u* a. z5 O: q
3 Z( `8 {; N/ N0 r0 Cset oscillation 0( m& ~( f0 u0 q% Q
$ a3 t, N4 H! G* x# g7 X' q3 U+ z+ bset rand-dynamic 04 e, I) G5 L* N: t% G8 ^$ z
end
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to setup-turtles
& y7 r0 e' U2 y9 aset shape "person"9 ~) S, A% E3 f" \- u
setxy random-xcor random-ycor
! ]1 @2 k# }6 G0 dset trade-record-one []6 Y! r( ]; w7 U) t K
: Q- {* h! ~/ o& l, b# x- dset trade-record-all n-values people [(list (? + 1) 0 0)] ) j3 X0 Z9 @4 q# Q/ h. Q
& q8 o8 ]+ `5 G4 D0 b ~& E
set trade-record-current []+ w' S, K" f; J- {% V' C
set credibility-receive []) Q9 y. w8 J) Q
set local-reputation 0.5' j+ A) n: S. k( t( ?! H% z
set neighbor-total 0
8 T4 _5 p' T0 \set trade-times-total 0& l$ A2 m4 O' Q0 F, D4 j
set trade-money-total 0
4 p! o6 R+ O( x- n$ @0 Cset customer nobody0 N; k. K* B( P' t( d
set credibility-all n-values people [creat-credibility]
4 h3 h7 E0 r. dset credibility n-values people [-1]1 e: P ]8 R( E1 f' I! {4 i
get-color
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end; N3 k" [' F+ N# c- f2 o
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to-report creat-credibility
a7 `+ i4 F- y; F5 freport n-values people [0.5]
1 j# Q' w# y) I3 P& ~3 [3 C! Kend
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to setup-plots
; g" T! t+ R/ L4 v: r$ C# C( [5 Q- u9 n% c7 A9 d7 n- f$ F) o
set xmax 30 q6 o& Y4 ]" s. g8 ^
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set ymax 1.07 d4 U& t2 V4 i" @- t& u" e
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clear-all-plots
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setup-plot1. y) h+ d2 K9 S
9 F6 w. g5 N2 B8 U9 ^ xsetup-plot2
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setup-plot3
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. |. w0 ?6 w; z5 W- |5 C6 Q
;;run time procedures
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to go
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9 Y7 V! N% }% o0 o. Cask turtles [do-business] k8 M7 S$ ~9 h/ f6 z0 |; Y
end
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+ G% r* @& z7 N# j7 \. K& Uto do-business
' H. \% R) a- Z; `4 R8 W- u! b3 b5 h4 C$ X- ^) b/ p; f
6 G$ c% f) V$ Q* [; |& P" h+ {rt random 360
5 C6 m7 m5 \/ G% s$ b/ `
9 G0 ]/ g9 u4 l$ t* A1 m- kfd 1
# ^* q- k: l5 U3 @0 | v/ e# t& K4 A1 a5 D8 I" t: }
ifelse(other turtles-here != nobody)[, U% R. D! P h
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set customer one-of other turtles-here
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+ ^; C- G' W$ V' w, }: {' Z0 ];; set [customer] of customer myself" R/ `) a8 K M4 x0 ~7 s$ F0 G
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set [trade-record-one] of self item (([who] of customer) - 1)7 s2 ~% F1 W. Y! V! Z
[trade-record-all]of self
1 R3 I& F8 W( [; h' |;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% r6 e" M) D$ W5 Z8 O0 t
% l+ u" l: G6 X3 t/ Eset [trade-record-one] of customer item (([who] of self) - 1)
2 o7 w! a3 K$ X6 C) p[trade-record-all]of customer( h# y P7 P5 I( ^8 x& B0 ?
( s* I& ~1 \) O* ?set [trade-record-one-len] of self length [trade-record-one] of self
4 v2 x( q& y# U# T0 ?. h& g: \, Y- _3 ]& I- l
set trade-record-current( list (timer) (random money-upper-limit))
% V( E8 z8 B* K5 [8 W
' R. T H4 Y9 mask self [do-trust]0 e! Z4 Y$ r1 @2 ]% p' [
;;先求i对j的信任度
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if ([trust-ok] of self)9 @0 S3 S: g( K2 M
;;根据i对j的信任度来决定是否与j进行交易[6 t# `; r' @, \ E
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 I0 C$ u8 N5 }$ Z
) W2 ]/ B' @- f- f" e[, }$ W; M9 Q- G+ ^8 _
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do-trade4 V) O* t7 s# P& q5 W3 P* Y1 T+ i
# Z) y0 `3 i9 @$ L& Q
update-credibility-ijl
V. s- g. R) q" P _2 ]
* c s7 f8 n; T e, G9 dupdate-credibility-list- K" Z" V/ I" [! i
u& r. N. B: y: E; o+ ?1 ?, \4 _
2 l0 `$ F+ D& w$ h3 M; z& t3 nupdate-global-reputation-list8 N, `' E% O5 s) q
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poll-class/ |8 M* M) v- J* @: I# ]/ O% T
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get-color
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6 Z! r# e% F. ]3 l) O6 h @8 [/ @]]
7 J$ @+ B5 E* ^7 \: F
- E6 S& v0 @# S5 M* ]* f;;如果所得的信任度满足条件,则进行交易
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$ W9 z0 C- O, L1 K2 x
' ]: t: y3 E( c% Jrt random 3607 S/ S$ @1 G( X; Z6 ^6 i# c" z
3 y1 O) F6 U* u
fd 1
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]5 S6 |( V4 d; }2 P, C5 s
4 l0 F* U) |# X( S( [+ yend
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to do-trust
3 T) O6 E! }1 N/ mset trust-ok False' c6 i# }5 F' y Z1 P. V
9 V* n3 j( V3 [. Z" d, W3 ^: {5 Z' G7 ~& W: B
let max-trade-times 0
) @7 Z. A1 ?( x6 G+ h! R6 [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) r' _1 ?$ b* ~4 ?. E$ U f5 Tlet max-trade-money 0
1 R3 |$ J/ _8 t {' m. Yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 |- y) J& T m: V. V) p0 Zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). l. }. Y1 N9 s1 H& Q( W
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( g# e9 Q0 C: ~8 K' e7 Fget-global-proportion0 c% k+ g. p3 Z& O8 ?8 i6 G% ^- _
let trust-value
# `. E/ o" I& m o9 R2 v- a9 }- flocal-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 X$ A; r( t l& }if(trust-value > trade-trust-value)3 H2 \( G# x z. `4 i/ m# `6 V! q" b
[set trust-ok true]0 O" @; `/ w8 S8 T! W2 E' z
end
" g2 l0 r: }( t; a- J+ W- o8 }% k& w( Q1 X$ e7 Y7 r. E. r
to get-global-proportion
# B" L5 k3 Y& `- M# f0 N2 {ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# D3 I" B, Z" t5 B9 w
[set global-proportion 0]2 w7 n0 S7 R0 y3 l2 P2 l" \5 G
[let i 0" I$ N& e& d$ o% K
let sum-money 09 o; b q; }7 ]. D$ D2 h
while[ i < people]& r1 p) [0 Z$ v/ \1 Q1 x
[6 f1 J8 Z" \5 v
if( length (item i
% m- T( ?, d ~8 z% s# T P# @# T2 L+ K[trade-record-all] of customer) > 3 )
3 q+ `3 C" e0 m6 K3 i: g; }* P3 p[* ^: w0 k) c! @' K. Q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 h2 E9 Z" a) L+ W/ B8 i8 A
]: P5 T O) \% |) T, E: m
]; A. _. v' [! D" f5 s$ |
let j 09 w" |2 D* Y+ c" {) w& y% p
let note 0. j% i. ^4 P& E( V' Y7 s7 G
while[ j < people]- n4 X8 T5 d. v. [' j' d; Z
[4 R) Q2 \' G' T$ q1 b4 d
if( length (item i. w% r: r' W% @
[trade-record-all] of customer) > 3 )
9 v' P: `" J; x7 i[0 I3 U B J3 T3 S- H. ], `. ^7 J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# `" p. T) d5 ?! A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
/ y ]$ P# L9 t: u6 o2 I+ F* C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; V [. v% X- Y5 Q9 R]
0 h! X: a2 [ ?* o7 k9 `' []
- h, U0 \& ]! T' D+ H( Q1 ]set global-proportion note" @4 P1 x' B: u8 ~
]; o. o. O% g+ C& c
end
% w5 p$ J- M" {8 u+ V
5 b+ |. g4 |* Z- Z A: Xto do-trade7 `6 K. x& y7 B% T# Y% h( ?: z
;;这个过程实际上是给双方作出评价的过程
w- [: E/ W% d9 z" Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ ]2 ~: W( o' h( \set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
4 M0 Q' J# N9 oset trade-record-current lput(timer) trade-record-current
$ Z. K9 D: V, A1 J' r5 W+ q1 Z: w;;评价时间
* F: F z0 \+ W1 g+ _ask myself [( e& e- k' X6 `/ i. ^
update-local-reputation
9 }, y, {) n& W& O2 w/ I" s) l% g; Vset trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' I# u2 C0 |, M- Q9 O
;;将此次交易的记录加入到trade-record-one中
! ?- W! V( m& z$ K/ L6 Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' b" q) f) c' P1 U1 P: slet note (item 2 trade-record-current )
' C7 P5 @: |" z- `! fset trade-record-current
3 I K! w& p8 v6 Z9 ?, r2 h" \) [(replace-item 2 trade-record-current (item 3 trade-record-current))# E4 G1 {4 R+ R& N% Y+ j
set trade-record-current1 B u8 K4 M) U* f6 t. a
(replace-item 3 trade-record-current note)
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5 ?# T3 |1 \; {0 _
4 z j0 x2 o/ h( bask customer [
! i# m( j& `- d5 S3 V* l$ Y9 Xupdate-local-reputation
% e8 K2 p M& L# U, h0 Jset trade-record-current
% l* v, Y" Q6 P8 o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' b6 `% w# H4 r' {% l. ~5 ^
]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! k% e7 J. M* m' {5 h
& K5 \$ A% y5 N9 n+ `" N m
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 g) m# V, @- \7 ~7 ?6 N! x
;;将此次交易的记录加入到customer的trade-record-all中' v1 t! Y% s; h# ~4 _' e: r5 |
end
% S; z/ n5 `) B/ ?0 V! V
. y! C' }- n- pto update-local-reputation9 y7 [; _1 K# V8 t
set [trade-record-one-len] of myself length [trade-record-one] of myself
& k- P7 q) v' H, L( u" m( M4 i; {, l4 K8 s* r4 e; ~* e- i+ K
7 a) Z5 a. E! x* D( t
;;if [trade-record-one-len] of myself > 3
) A# B& b6 A7 v, K! @& O% H7 e4 eupdate-neighbor-total
' r: K8 |" `+ F2 Z, H7 I* [;;更新邻居节点的数目,在此进行( v V. X, S- I1 d5 L6 z
let i 38 h" _5 f8 V( H
let sum-time 0
( U( y j+ c9 X7 Z3 m$ _while[i < [trade-record-one-len] of myself]
9 O: |. s. u" Y/ u3 L/ @2 p[
: j3 _( s8 q& ]$ i7 L9 ^" Cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! N1 T& e) i/ ?; e9 T. y5 Y
set i
1 k( n% p6 D: S6 _* |( i + 1)+ s6 ^+ H, B0 H* m; k( _% @
]( w* A8 n) O/ Y2 d% a( k5 p0 d: S- ~
let j 35 M3 ]) n; j! k$ P9 q0 M/ ?* C( E- D
let sum-money 0, Y0 p# {' i" P$ G1 s; T/ O, [
while[j < [trade-record-one-len] of myself]2 n. j& C) ?" ]8 r
[. I! }8 `5 D( V
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)
1 s% o) c7 q+ o5 l, Iset j
5 s" k" B: c7 B5 v. C* s( j + 1)
( @0 Q0 V+ f* c3 r5 z]* Z0 c' B3 m' }, b" m: n6 Z
let k 3
$ W$ v a( d" d c" G6 _. |let power 0
3 Z; x. \" t3 K6 P" k8 f& j- Elet local 0
% m+ P6 B8 ^: L# j( Wwhile [k <[trade-record-one-len] of myself]; X a1 n4 r- J' w
[
( O3 N, s j' @$ i2 {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) & Z# `- h- U+ l) s& c
set k (k + 1)/ F) r+ P, F) d/ [- \
]+ p/ n, @8 R/ M G% y) O
set [local-reputation] of myself (local)
4 g/ _) J7 u: |% q9 f2 g7 ?" Oend2 S) K9 V6 b0 z! c5 A* v* R
" D7 a! d" n9 N# H1 q) a, F
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]/ n4 U( m! B# v$ D0 g( L
) ]3 a$ U ]1 O0 s# s& K
' I" O2 i. Q5 m( O/ i7 j& U8 p+ h$ zend
, n8 r9 M- x" i. e2 ^& D4 T* I% y! Z$ b/ H- W
to update-credibility-ijl - q8 G- j3 t5 Y
0 @: x: t* b4 v+ {;;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。
/ r1 S- B* \5 E9 }* D' ilet l 0- U% P( a0 D+ ]+ _3 x1 U+ p+ B
while[ l < people ]4 e3 B5 ^4 ]$ L7 T7 X' G) k& Y h' Z
;;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)
) l- R& K6 O6 _+ r8 B( y: R5 _2 ?if (trade-record-one-j-l-len > 3)
" ]) I$ R8 a5 r# U[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; y7 x1 Y g, s
let i 38 b3 K. X+ D( M2 u1 v% ]
let sum-time 06 Y- p- D( u6 J' T% F$ A: m
while[i < trade-record-one-len]2 L/ D* Y0 I* l8 i% m& b
[8 j: M* c+ Y, t; x
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% g7 Y0 T- @9 l+ ?6 |
set i
1 \2 D7 V. ^ y& i! }8 G+ _( i + 1)
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let credibility-i-j-l 0: A9 `, m8 r- [4 j- T- {
;;i评价(j对jl的评价)/ g+ O3 c0 f7 v/ |- h: S- o: o( E
let j 39 {' t# H' p( d
let k 4
3 l: x5 Z7 X) S% e( o4 _$ k; ^while[j < trade-record-one-len]: `6 O2 B' P' R; D* d9 `- I
[
+ `# u) }. u) z* |$ Q) B# q' Fwhile [((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
) g0 V ?4 p) f3 D- ~' y. e6 Oset 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)
3 k6 b7 M* a% } K; D8 y1 X, I8 d9 g' xset j
2 A6 i( P, S* }& [ m7 z( K8 u @( j + 1)
4 ^0 Z. c* }1 ?. ?]
( F' x/ I2 A3 C% [, E8 wset [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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5 K- b3 G7 y% E& `. W/ X' a( G8 R" v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 x7 o# g8 @0 F% M+ X# j
;;及时更新i对l的评价质量的评价 ?5 X9 @: V1 v6 z4 e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( t9 @* j2 T3 ]- f& i5 N
set l (l + 1)
4 K; G0 v* n" @]
/ v" r, d k( J3 n- B7 s/ k* z1 |end3 u: W% |' h" U9 O/ |! h" Y5 E: @
# F* h. B$ n. H% u0 A+ A5 H7 b5 n% V
to update-credibility-list
( d1 ~) K+ i @- ^let i 0
9 R+ W' e/ W; i) O/ V( q* Ywhile[i < people]' O3 r" ? {, J6 _9 `
[1 G1 F9 J- D2 t: _
let j 0
: N6 k; _$ }) y) hlet note 0" @. k/ J: l% o0 G$ @/ d
let k 0
2 X L, i0 L% Z2 |6 V- O;;计作出过评价的邻居节点的数目
! d. k7 N% ^; }' ]) lwhile[j < people]
5 B% y! N4 s/ s+ f4 J m# v2 {[& W( |. e; L8 n4 j. M
if (item j( [credibility] of turtle (i + 1)) != -1)
' ?. _! P) I8 L4 };;判断是否给本turtle的评价质量做出过评价的节点
" y4 S' l4 J* F) @1 _/ u8 I2 f[set note (note + item j ([credibility]of turtle (i + 1)))
% ?& [* l2 Z5 ^;;*(exp (-(people - 2)))/(people - 2))]
2 X: e9 g( u- e! G" aset k (k + 1)
- i# R$ h1 O D/ Q% I]
4 q0 T2 n; j6 Zset j (j + 1)
- Y( Y& E; o0 ~* `6 b& p7 m- q]
/ O2 E/ i# U. |* Q: fset note (note *(exp (- (1 / k)))/ k)
2 k1 Q( R. [/ L, j& y$ U6 ]set credibility-list (replace-item i credibility-list note)- r2 J2 [9 U! k: J5 w
set i (i + 1)
& E0 y/ h. x+ R- a]
! ?7 n( s0 q( qend
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to update-global-reputation-list# E; _8 ~+ O5 d' V' S* l- M4 R
let j 0
; R3 K, A# z4 g6 p) awhile[j < people]
6 G5 M) P2 K9 B/ m3 |[
5 Y) _1 K2 L) v: B& \let new 06 o# i4 y6 D. { @5 o
;;暂存新的一个全局声誉
: F- g& Y0 ], V- d8 dlet i 0/ ]- X& w9 E' Q$ T7 ~+ ]3 p0 R% W
let sum-money 0
& K, y4 |: `% j' @' T4 H ^let credibility-money 0
" R$ X$ _7 e2 Y) J7 t; Mwhile [i < people]
! g8 M. P8 N5 b/ N4 k& W( P2 w[8 h3 D7 G2 p7 s+ h1 R
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 g5 K0 P& c! l( U# h* a Xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- h+ ~% h5 J6 U k
set i (i + 1)# c( k; g8 G& _5 {$ e
]
* E1 @5 d b1 ?# k9 Olet k 05 K) r, S$ L# U0 L8 y5 _% E
let new1 00 T! `- p- Q6 f3 V \; n
while [k < people]
- c7 A: C# F# G[
: Y' B9 N8 L1 W; j4 rset 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)
- @6 q+ y. L& c# E0 j& Bset k (k + 1)- M7 r2 i5 @4 T+ Q5 a/ Y- l
]
1 ]) s" S# D9 E* ?4 `set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 D, {$ F. S& b& W6 \. cset global-reputation-list (replace-item j global-reputation-list new)' J/ d1 j$ q; J0 v7 k4 j
set j (j + 1)
; i, k) n/ [9 q4 q0 u; n8 C/ h]
6 [, U1 S: \7 Xend( \" r! i7 J! J8 q) P h
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. ]& i0 u; X0 G0 `; m: h
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to get-color" K- e5 w8 t7 w- I. ]
6 I$ D& u3 S* p8 X' z9 y: Oset color blue1 }7 @% i) z. g( |8 L
end
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; o! ^* b; N. Kto poll-class
2 d6 \. H; l. ]8 p! e/ Dend* ?/ Q- j* u$ x) O! ?8 {; T
, q& [9 ]. |# p Nto setup-plot19 d3 t- ~. U" }* y4 U6 P
. m6 p) r3 w# |set-current-plot "Trends-of-Local-reputation"$ ^9 t8 V4 B3 L! P0 [9 h+ t
/ |1 ~" ~! q( k3 ^- Tset-plot-x-range 0 xmax9 u7 B8 e$ ~1 Z- q) Z& v
. p% R& H% `! Z% I5 j9 L
set-plot-y-range 0.0 ymax) z; I3 _* @: i8 _2 y4 s- r
end# k w! ]3 h# C9 E
+ a* P9 P3 e/ i2 U9 ~/ Tto setup-plot2% d& ?# |% A$ s% e) |
' o3 s, b9 K) z* w/ E) }
set-current-plot "Trends-of-global-reputation"
# U0 p% x' q: W! I
2 w3 l s z" z- [set-plot-x-range 0 xmax! y5 D8 w. W4 b/ Z% a# q. `: f& C
6 R3 S0 K1 ~' W: C! J/ S: vset-plot-y-range 0.0 ymax
! @* Y# H+ G5 f/ K* @, \. `end
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to setup-plot35 O3 _7 D9 f, W. j# F
# {* P6 C5 o, C3 ?7 R) Hset-current-plot "Trends-of-credibility": t- n7 M3 D# Z9 e) N# I
6 r8 H* Z/ K0 N! v; x# [' Iset-plot-x-range 0 xmax
4 n9 X/ ^2 B9 [* `4 M1 f# w4 P# j4 I9 |0 Z5 z
set-plot-y-range 0.0 ymax
, F$ j& w: y9 O; M' _1 C9 Wend
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" l; l& a, ?/ s( P; pto do-plots2 W+ A- j3 Q4 `% h( j% }1 K
set-current-plot "Trends-of-Local-reputation"/ _9 U! i; Q, Z7 o
set-current-plot-pen "Honest service"; p* }3 d5 w7 Z5 U% [% [
end$ L7 y8 S8 N/ H
5 p. `2 Y |( W+ w[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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