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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" U; g+ p5 ~4 ?" \9 l
globals[; } V5 ?8 |( @9 ^) i; U) k( }
xmax+ j$ U" V3 C# r# c; p
ymax
I( K( L, a: {. aglobal-reputation-list# g) N& n6 e' @
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;;每一个turtle的全局声誉都存在此LIST中
2 l2 i; d$ t2 ^credibility-list
* I8 A; ^* x% u" x- o0 z;;每一个turtle的评价可信度
o# Y* F J3 @% Bhonest-service$ Y" m$ {+ [: W/ P+ ~! v* ~" U
unhonest-service. F1 i Y6 U! e/ L& \% a+ |. c5 t
oscillation
" E& d7 M) S7 ^9 lrand-dynamic
4 m4 m# s# Z- j]
9 ^$ H& i7 l* b; _
* z/ ? j5 E0 |( O$ Vturtles-own[
- c. C& j# S9 Z! m j+ xtrade-record-all
7 d4 J N, h/ C7 ^# B8 k;;a list of lists,由trade-record-one组成
) S8 A# [" q, Ptrade-record-one
) Y" g: `& R7 ^- g7 C- I;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 a' @' X) W8 _% s2 v% \% ~
5 {, ]: r( k: j
;;[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]] p' ^8 ^( ^) m: ?' g
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]
8 M6 v4 V. \7 A/ y4 Fcredibility-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- K6 d9 _, J6 `
neighbor-total4 \' u- w, ~" V2 S6 ^
;;记录该turtle的邻居节点的数目
9 B% Q+ u, j' Gtrade-time
7 ]: P6 ~1 f! j) s/ g& O; k;;当前发生交易的turtle的交易时间% i6 H" P4 s' d
appraise-give
( s3 |! H7 ?- h) F+ B! Z; E;;当前发生交易时给出的评价+ C; I, K7 c7 c6 m T
appraise-receive
, _1 V) f) t; ~( K+ ^6 L1 P# D;;当前发生交易时收到的评价6 f$ Q5 a4 J/ j8 H0 d% j# ^2 [+ ~; O! w
appraise-time
) [" u; t' Y: J: J4 T;;当前发生交易时的评价时间, K$ u8 E, z- v) N. @4 v
local-reputation-now;;此次交易后相对于对方turtle的局部声誉# }$ {& z+ p/ ?4 T0 {& t
trade-times-total
5 ]# t/ Y9 R% ^3 s;;与当前turtle的交易总次数
( v; p1 i) p" z9 W7 U) K0 o3 @trade-money-total( C- h U5 U( J
;;与当前turtle的交易总金额6 y) g3 h* e- W; U2 M* G
local-reputation
4 l6 ]: L& \% p( f# _global-reputation
8 [' r5 ~/ i' ?# e# a# icredibility
/ u' H$ R9 [& x5 v' J;;评价可信度,每次交易后都需要更新
- ?7 q. n5 G3 p0 f" j1 t* B* |3 Hcredibility-all7 T- m% A2 Q4 F
;;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3 G4 u. T( O* h
% L1 U- n4 r$ \( Y3 ?, V, A2 p
;;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
1 ~4 _8 {; c4 B: j' T; Q- W0 Hcredibility-one3 |9 Q" V6 W& V Y% S/ |5 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
& K* m5 w: \1 x- Q' nglobal-proportion
~, S! H- e8 r6 acustomer3 o7 I4 a9 j4 x( a
customer-no! ~: Y7 S- r& V0 N6 p4 [; Y3 f
trust-ok! y. I9 }( D; P8 Y ]8 \
trade-record-one-len;;trade-record-one的长度& Z3 A8 I5 s/ j
], N% _9 p& c/ r. J
4 v% N; h0 e- f% {9 C z1 O1 O;;setup procedure- U" `9 r: P8 s6 y' ]
- j" O8 ?( x r# S4 S; }/ Y/ ]to setup
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$ n1 p: p! s1 ?0 f C, w) i: uca
: ` f ^( _ H
- B' W7 L, M- q8 ^initialize-settings
5 l; D# w8 v1 y2 K- v
, O# ^: \" t! ycrt people [setup-turtles]
$ G& `1 j [3 u7 F( p s- ^% n' q9 K1 x: y- k2 R
reset-timer p3 V4 W8 x. E5 G- `
( I- `- S' V: R4 Opoll-class
; B% ?1 n. j R& P% K" M3 R) v% ?8 _' _
setup-plots
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3 Y& [ h2 U0 |7 R9 V; @do-plots
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to initialize-settings
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set global-reputation-list []
0 Q6 Z9 }. T- _' V
. _, j8 z4 J" m9 sset credibility-list n-values people [0.5]
+ v' y0 T4 s9 }; Y) ]& X9 ?, I7 s% ~4 [( z( E
set honest-service 0
e* Q" @) y/ R) `9 D
* z0 O2 x2 }' a% [% J, Z" ^ T2 _set unhonest-service 0
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set oscillation 0
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set rand-dynamic 0
2 j7 L8 I* p! ]1 X( rend
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to setup-turtles # k, O$ u d7 u& b
set shape "person"
0 @! i( j& ?) _& d) M7 `; gsetxy random-xcor random-ycor
3 }3 j, J7 `% u' {set trade-record-one []
, w( O, T, p: H+ g* z1 F) D& O9 L! _! A; y/ P* d* {3 T# H1 w9 C/ K9 i
set trade-record-all n-values people [(list (? + 1) 0 0)]
0 b& K- J6 K2 S9 a; p9 ]- O4 `1 Z- q5 x
9 T/ |; s! q2 g9 Q- |set trade-record-current []
! q. D! g% ], N. pset credibility-receive []
. A2 Z* i2 R; H" A: u2 @# g. ~set local-reputation 0.50 B3 F0 D5 K+ u* @' Q4 H0 ]
set neighbor-total 0) \' ?# m0 ~5 E
set trade-times-total 0
9 \# ?3 `* q3 E7 Pset trade-money-total 04 P% U. d* t: n. j* a
set customer nobody0 z) d0 ^ i" X0 ] b/ P, O/ L
set credibility-all n-values people [creat-credibility]2 m( h) J6 z% K' ] P
set credibility n-values people [-1]
* A( L+ P S% |get-color1 d" o8 p5 `2 U5 k; z$ |5 S' Q
! ?6 \. X0 B7 V' s" ?. send
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to-report creat-credibility
6 ]% K1 s& `7 _$ ?% m9 |5 G1 q+ |9 Breport n-values people [0.5]
0 Z+ M6 W1 @1 @ U7 J0 `end5 d( Q' R* s& ~7 O2 H2 v
0 [& C5 T* R! }7 i2 o
to setup-plots& k2 Z" `0 h/ C8 ~3 u/ B% l
4 d1 j: |8 p j, a4 N' S6 Q+ L. ~set xmax 30. z5 \( g7 @1 i, \9 x$ g
* K( Y& y+ U% v6 M% f, e- a
set ymax 1.0
& S" j; Z) x, z x$ D2 R7 B4 k$ b8 _2 ~3 T( Q1 p+ h
clear-all-plots+ Z3 r8 Q: ?- N- v
1 G7 d' ~- S; e7 ?3 a n D% |setup-plot1
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) n5 Q- V( Q. @" u( @. j& Wsetup-plot2
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; U2 n/ \3 [/ U9 ~3 F+ Ksetup-plot30 h0 D6 v2 q0 d& q) V }0 j8 v
end
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J& c$ H. e/ \( ]5 i& A- P;;run time procedures4 c* @6 g2 O. ]. B" R) \
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to go
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ask turtles [do-business]3 ^( q; c1 V" F$ H
end
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to do-business
6 z- O9 A- U# K* ^3 L. ?5 E: a$ u+ e( i! Y" y6 ]3 a3 _
5 F+ ^' }3 t% J4 t) k5 [) s$ L
rt random 360
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fd 1
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ifelse(other turtles-here != nobody)[" K1 J1 U4 ^2 G9 T9 Q+ g& c( r
, E* C4 `5 u7 ?+ I3 \$ q
set customer one-of other turtles-here' o- d/ t, o6 r8 T/ x
, `( q" K8 M; t;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
- @9 k g% r j% U/ w[trade-record-all]of self
. p5 Q- q1 ], s% @" i, S3 x) |;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! n. a* k' U# I6 _& i& ]8 }$ v6 w
/ I& d! f1 F# P9 Y' H( i6 S# ~set [trade-record-one] of customer item (([who] of self) - 1)7 p, e& ^* P7 x0 ?4 E3 k' d0 d
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self2 A5 w' z! X6 d' V( x s
% z' t3 A+ {6 n0 {
set trade-record-current( list (timer) (random money-upper-limit))+ c2 Y' a4 v* E2 E1 c2 \9 e4 E
! l2 [/ w; d$ bask self [do-trust]
, x" F4 e4 A) \( z9 Y7 S" e7 d;;先求i对j的信任度5 K- ]7 ^; n9 S9 D- D+ {
r$ ^% g e. s1 A, G" ?2 Wif ([trust-ok] of self)
% r# f( d+ z! A+ x: |;;根据i对j的信任度来决定是否与j进行交易[
0 s7 \: w( t# r4 u' j5 l" xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% K- ]+ [ c! U5 l8 a
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[
7 p e6 v' _. m4 q# R# z6 A: ^4 A, S( Q: Q1 K' ?
do-trade
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update-credibility-ijl
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update-credibility-list
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update-global-reputation-list! V* @4 J# @( Y4 y) w
4 ?+ R1 {' `1 r( p- w# L: H% Hpoll-class
5 ~# w/ y$ J; S1 M/ z6 M( U* g) G" ^" p! Z
get-color$ |* l1 X! V" L! P0 t7 m7 @
% P( |& s6 t1 I0 `8 L2 }
]]" E$ p. f. |- Y( D" |
% u4 N; b% t2 ?: ?/ ]& Z;;如果所得的信任度满足条件,则进行交易
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, o9 U! O: C% T3 @+ J
rt random 360+ A5 w; ]7 R% t; t ]+ i
! `: q$ g8 U0 c% s/ _6 { cfd 1, \* M8 g) U' i! a* \
d$ d9 _5 N& ?$ @/ Q0 h]
: ]+ O5 s6 z+ s. s1 j6 R3 l( T7 ?0 k: m
end
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to do-trust
' q* F* A7 a3 tset trust-ok False
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" K3 l( p0 Y; W6 l2 Klet max-trade-times 0; T4 ~$ l8 J M* [) H) v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 c7 B7 I h: ?6 f* Z
let max-trade-money 0- V" W9 P* Q% `! {1 v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 |( L9 e. T3 |& \4 W
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( R4 O/ Y# A. y5 v1 j' e
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get-global-proportion
+ g2 D" v3 ^8 B8 E& H' g; E/ I4 Ylet trust-value
8 D* a a- k2 ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)5 n# _+ Y' V* t* J+ R7 x& k
if(trust-value > trade-trust-value)
. F7 \: A) v, V. G[set trust-ok true]& @) ?1 v9 J' l, }
end5 B% [- j) t% W9 U0 ?
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to get-global-proportion/ a( S( c% J7 G- p% V8 x
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 z1 m# Z1 H6 D
[set global-proportion 0]
5 U" N+ l* }6 A% w; |[let i 0
2 t! Z3 u3 ~% Q! j, s7 Elet sum-money 0
9 s% ?. x7 s1 l7 x' i+ }while[ i < people]
. s! t% `8 z7 @! _+ \# u[. {; }. U; F- \8 q! }$ T
if( length (item i
$ a% ]& e, _/ }+ m Y; O: Q3 `' e& T[trade-record-all] of customer) > 3 ); j/ ` Q( Y Z$ p% V0 g
[
E. q1 w h0 i6 E! j1 k, jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& K& s) A. V3 `! ^]5 U. l3 v/ @6 V$ W8 C
]
. \& ?! ~1 N! t6 o1 R/ w# |8 llet j 0
6 I" S7 O9 y: ~1 Dlet note 0
3 h5 m. X- v; Z+ ^6 pwhile[ j < people]9 ^6 h, }" s# f0 d2 B- t, K3 U
[. I1 @ B; J% }
if( length (item i. C6 P1 O) k, m+ x
[trade-record-all] of customer) > 3 )
% c, N9 Y9 k$ @7 g' F- g2 ][6 J6 E H, S: Z4 k# p6 |
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" j2 m/ l+ m" V9 @0 R1 z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ C3 R6 |& F* n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
B6 r+ s" \' v# b6 U0 y5 H]( g9 x$ y- ]( T. d6 O# b
]& \! `9 Q8 \: P E5 }
set global-proportion note3 |, A* ^5 m4 k& T- P% C6 U5 R: N- S
]+ D8 n) z$ R# W/ m
end; r7 q$ F/ J9 O% U
# [/ F9 `" C0 }& m8 m5 |
to do-trade
: S( S7 O d% W& C- T7 a) L;;这个过程实际上是给双方作出评价的过程% ]) u& i! l, T; ?# j# g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& M, h4 i0 A/ t; C, wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! b2 |" D& o; K4 ?. t+ [# `set trade-record-current lput(timer) trade-record-current
" z% q* x" {2 e; r3 k;;评价时间
m1 P1 Q# D4 a: C. `! s2 g5 f: H0 S- Nask myself [, R& X. l l! }8 s1 X" i2 F" ]# \" r
update-local-reputation
; m8 ~ b( L5 O$ H/ Sset trade-record-current lput([local-reputation] of myself) trade-record-current6 h7 ?. ~1 R' o& }# ?
]8 e6 ^) R, M) X( Y: y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself H/ O4 t! C) {& P8 y
;;将此次交易的记录加入到trade-record-one中. v9 V2 S" Z4 d8 F9 c' k4 d. y% t
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 f0 q# C# ]% _9 nlet note (item 2 trade-record-current )$ d4 A. \ g1 v3 ~8 m+ i
set trade-record-current
* `$ K4 x4 F" Q3 z n(replace-item 2 trade-record-current (item 3 trade-record-current))
2 B( o5 I# S4 i( f! _; Jset trade-record-current- l t; f4 i# d* u* Q6 \
(replace-item 3 trade-record-current note)
' w" p! h& ^4 S6 v8 A0 d" v
6 w) [, K4 ^8 _
- V+ g) X" g5 x% {/ Y8 T6 V) Cask customer [1 f( F+ A8 b* i( Z# Z! N( v) D
update-local-reputation
/ B( O" l: z) y& ?" x, }set trade-record-current
, K- |. C, a7 v% X2 {& [! Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 I" J* |6 f+ v8 \% f) G1 |
]
, t6 M# w# m) N0 [: I" V/ ?
+ T$ N. \: d/ ~% t
0 @3 O, P+ f2 w+ Z- Gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 u+ M ?, e9 [
+ d# x. d# i' }- u$ uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; q9 c X- T7 l/ w$ L' x+ `' d% H;;将此次交易的记录加入到customer的trade-record-all中7 J0 ]9 M1 D! d( e* y0 Z
end
6 [+ G5 m2 s* C* x$ K
G7 j- Y/ u' Y5 [+ x2 P8 V, ~+ Q3 _to update-local-reputation0 [0 i" G( j/ F1 m* G5 }' M
set [trade-record-one-len] of myself length [trade-record-one] of myself
2 e2 J3 p/ ?7 O( U. v2 n1 k6 \9 U2 ~7 e
& ]# ~, t2 b1 p9 u+ l;;if [trade-record-one-len] of myself > 3
" U8 k5 \, o1 K+ w+ x# pupdate-neighbor-total
3 H; j+ W& F- G. \$ J! }: X w;;更新邻居节点的数目,在此进行
+ T" I$ D; [4 }let i 3
' }% g% J' e" y0 i: _let sum-time 05 R! A$ o7 b1 Y
while[i < [trade-record-one-len] of myself]( s# k c4 c! ~3 {% M; [
[6 W& v8 Z4 m4 U- o! o) y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% P/ V/ d+ P( z L: d4 M
set i
6 f h9 x& i$ c% }. `" s( i + 1)
1 _9 s: z! {# p/ |- \]
* U3 U! [, S' e8 s1 g8 r& e" _4 ulet j 3
0 q2 _+ n: n+ R9 n1 \let sum-money 0# P& V4 U! l Y6 c
while[j < [trade-record-one-len] of myself]: _. d6 i+ |4 a/ K
[, t5 l2 C* @) P* Q5 Q
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), h& [: I p6 f) T) U
set j" j. K, j* V) m) V; u" Z$ R
( j + 1)3 i, A4 b6 K9 J' ^
]6 y7 | ~5 `6 L2 e" G7 h& \8 d
let k 3
" w. C- n: `# p* Z# P. B6 Z) U4 Qlet power 0
A& l$ E( x7 v, m7 R/ Q( ylet local 0
6 \7 ~# c8 Q& M' T9 Ywhile [k <[trade-record-one-len] of myself]2 A$ E5 c, ]; W0 F9 R: H2 P; s
[
! Q& U4 N- ]& \$ H) z3 q. P. M' g0 [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) 5 y2 ^# u# S0 X/ Y# b6 |
set k (k + 1)3 K3 q! l4 x5 e' a
]& R C: [, g8 \' s% s
set [local-reputation] of myself (local)
4 j. D6 m9 _3 P: H; f! Rend
7 K; y0 l. {8 o/ z% v# c* S3 t+ q( ] O$ q& i
to update-neighbor-total: \! X# m" m+ M$ S' U
$ y7 V0 T( q; Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]$ N- Q3 a" {6 ]/ l8 s* b, U3 s
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# G u( M& M' _7 j, R! H; Tend- a, l5 V+ v- B- y
5 }( @3 R$ f5 }0 q' f8 _1 d
to update-credibility-ijl n* O2 _0 {8 |( H" v9 I: A
* h3 j( h0 s& D6 c;;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。
) s( S# Z9 I: u' K4 `5 E8 Nlet l 01 J0 }# \; ]/ q' M
while[ l < people ]- C% W1 `0 M U& B1 X3 Z9 C
;;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- ^& R+ H7 [5 H; W8 L7 U i
[5 O+ R! H" }# [3 A2 t$ G1 N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)' n4 k: J8 j& O- n) W+ Z9 ?
if (trade-record-one-j-l-len > 3)0 D4 R6 y! }/ `( X. Z$ H" x P/ n) y5 j2 o
[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-one5 {: c2 @3 ~& ^1 j f
let i 3- \0 P( f& C R K
let sum-time 0
7 H% V/ e; C |2 t7 l3 A1 X/ L; K4 `while[i < trade-record-one-len]
4 x$ d8 v% l! k9 P! Y[
2 x- c1 w5 T) w2 @set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 @7 g! b. k0 Y9 n& J5 Uset i
3 N+ _: J' U6 l: l$ Z( i + 1)
+ Q1 ^+ o3 `, A: a]
6 ?# U! U0 z% q% P! Vlet credibility-i-j-l 0- `' Y2 K8 P S; c9 R! }4 w
;;i评价(j对jl的评价)
9 F9 j, P! M- ylet j 3
$ M* ~" V% z. O& F9 J) Tlet k 4& d7 t9 B7 I' R# E- m$ ?1 O" }: l' D
while[j < trade-record-one-len]
0 [4 K, h+ `/ P( E[
/ O3 Z$ `7 Q: |) j: M/ A6 \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
* n6 o4 `6 `+ C! k, dset 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)
5 E' J6 g# g3 Y1 U" Hset j
% j$ {/ |- X1 }; t+ b( j + 1), ~; M) f3 x/ e4 n. t4 K
]
( ?1 G2 K; i7 e4 Z5 \- V' [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 ))( w4 e% r: D9 Q* ?' J: Z
2 J2 E9 }: n0 u+ s, S
# Q3 w+ _% A9 r$ r
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) B/ n3 q. A" a
;;及时更新i对l的评价质量的评价
4 V ?* `4 r7 D! V2 Eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] U8 \ u9 s6 n9 Q$ d W: o, q8 K& `
set l (l + 1)9 t. m* q# M/ w) J1 E0 p8 w, s
]
9 {6 P2 D4 k& ^- t! Zend6 G* v4 ?+ l" K/ Y3 N
0 X6 z d5 S! u$ ^to update-credibility-list
+ ^3 [+ F8 K4 \ V0 Blet i 01 c3 k7 E1 g$ K
while[i < people]+ J ?/ |5 M% t" x
[
, G% ?8 R- R8 K% @; @ Dlet j 0
1 f2 j+ K0 y" J9 ~3 e `1 _/ Xlet note 0
) w' M6 S+ U- klet k 0
$ W7 J! Q# V/ e0 e;;计作出过评价的邻居节点的数目4 n6 m2 _: U6 g
while[j < people]
9 `& {: C6 Q) ][
- n- u3 h0 Y" E& ^if (item j( [credibility] of turtle (i + 1)) != -1)! L4 u. C5 G! U
;;判断是否给本turtle的评价质量做出过评价的节点
+ E8 K5 Z$ z6 U0 F. L0 N, V[set note (note + item j ([credibility]of turtle (i + 1)))+ u3 |, n& Y5 i6 ]
;;*(exp (-(people - 2)))/(people - 2))]
8 O- P1 l+ ~8 A8 R- yset k (k + 1)
2 |! Y" J; m' S6 S]
6 }" b: _( {0 G6 Aset j (j + 1)
$ j* {, x4 q& i2 s0 m( V]- o- N8 a7 N& C' q ]4 R
set note (note *(exp (- (1 / k)))/ k): k" k" ?/ F" C% D( N
set credibility-list (replace-item i credibility-list note)) y1 O) j' ^3 l. X. J# K
set i (i + 1)
5 Q4 S/ `+ j$ i. E]5 S" u$ ~2 S% l
end* G. P/ f0 [; {
% C0 [9 ]' G$ D$ V# F- P$ I# p7 H2 |to update-global-reputation-list7 Y4 y `- V* [
let j 0
" S" x7 r" m' G' M7 S, F" Y- Xwhile[j < people]
% {4 ^8 F" u- N6 z[
5 d6 K& L1 i! M. E$ ilet new 0
' E( F* j5 W: g+ C. u. n# r _% [;;暂存新的一个全局声誉
) y# r! M, i1 N, a3 I0 f/ xlet i 0( x0 p" s; x5 D7 [
let sum-money 0
- d# e* I5 U, ?# p& f# vlet credibility-money 06 {7 U/ Z. `! v2 X0 E7 d0 l. N
while [i < people]
! i7 |$ R8 [1 Z5 j[1 o3 _. ?1 n" ]4 a
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) C5 `! X' }7 _$ O9 m
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' }. i) s8 v( Y4 D- h
set i (i + 1)
% a; t( f5 l! C, Y0 Q3 a]- p" i, a) V' n0 U. q7 S
let k 0
% F4 l, D6 f2 N G; d! Q% q8 Alet new1 0
. A* A* v+ L" k6 h- x; }while [k < people]9 ^3 h! c$ `/ y# v/ V
[
: J3 Y9 B4 O5 |: f1 `# o& ]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)
% N, k/ L: O& y2 m4 \: kset k (k + 1)7 q% l: A$ {( f3 Y2 f
]; ^* k( i8 o3 [+ c8 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' z, V0 i- @( Y
set global-reputation-list (replace-item j global-reputation-list new)
/ }( [" s5 B% |) j sset j (j + 1)1 J& h& T/ B$ h2 i
]
9 {- }' Q" I6 o5 B7 g: K4 tend
; _* `6 }8 Z2 B- l/ E) ~
2 w6 Z1 |: \. z' T* f0 R9 V7 l) F5 g; V. R# r0 l% t
0 v- x& B8 ?6 Pto get-color
5 k8 }; h" ^3 E/ X M
E, ?( [+ p- Q! _5 o; @! P; t. P. k7 }+ Jset color blue
) `" p" Z- |' O; K( nend( k; ]8 ~* u) T8 @* g
& [- N) l4 Q7 N( h5 e3 d7 G7 \
to poll-class3 [8 ^: h2 J& r: H
end- D$ @# R' O! Z8 f8 h
# M4 ]6 N4 w4 L
to setup-plot1+ ?+ Y2 l/ q6 Y/ h
8 P8 V$ d) i& f. I2 Lset-current-plot "Trends-of-Local-reputation"
& ?- d: W. i1 q P3 Y* @; {) p$ ?8 l, n h7 I
set-plot-x-range 0 xmax' y, l+ {2 E5 I7 G7 N( x
* ~$ W7 r3 A9 B! M1 x' Sset-plot-y-range 0.0 ymax, B9 l& ? ~6 r0 F! I/ Z
end d! G9 {' C9 A2 I# B2 W8 S# m
4 q/ L& h# y( L; v* eto setup-plot2# ?& d) S1 e. ?6 p2 t y& T5 h u; W
9 }' Y& o8 r T
set-current-plot "Trends-of-global-reputation"- v; ?. K5 i+ E2 [& k- B( @
5 S0 K/ Z( P/ w
set-plot-x-range 0 xmax
- j$ V8 I% w u2 P! L" d$ ? ] j6 V
set-plot-y-range 0.0 ymax
# V- A4 d: k3 J0 n2 E! jend" ]5 J8 l; c+ W8 J7 x( R
7 b; h/ T; s/ W0 Z% Q6 a$ v- e
to setup-plot36 R1 y4 ~* f7 y
4 C4 I* H) @" f- [$ w. s" O" ~set-current-plot "Trends-of-credibility"2 o/ d5 C- @: n) R+ S& q
' Z3 R' {4 c5 M# F& W8 R6 h; s, nset-plot-x-range 0 xmax2 C1 G6 |0 |3 h. y7 n/ A- m3 L
4 y& e0 J8 [/ ^( i
set-plot-y-range 0.0 ymax
) t" }: D4 v/ Z- O& y1 I7 w* ?+ Iend$ y9 u1 G* d5 W/ {# V: ^
, w$ ?3 W" r0 j4 N& `% Q+ `
to do-plots! y5 V% z6 _$ J3 z
set-current-plot "Trends-of-Local-reputation"
: t, s' J, s+ Y9 ?5 Jset-current-plot-pen "Honest service") t2 c; M* K- L( a) ^9 d/ Q; e( Z( [
end
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/ o o# P: s2 I% m9 e6 {4 X& m3 L[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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