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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" n0 c* D6 h# Z& ]1 ?4 N4 d
globals[
% }2 H% _! S4 b8 k" Yxmax
0 b/ J+ G' t2 H6 D& p- xymax# ~7 N3 m6 q: j# g+ ~2 T& X( Y
global-reputation-list
: y! \; ~" r& M+ |; o; Y! n# m
% `' o) Z R- j& c* w* N0 _;;每一个turtle的全局声誉都存在此LIST中, p1 `% _0 ?" c
credibility-list
/ _0 o o k. M& O;;每一个turtle的评价可信度
5 A; |/ R5 i+ ]: W2 r# E4 @honest-service. |0 r$ N v, G# w- G( Q
unhonest-service* |! r8 J- z" b) n: A1 @
oscillation
2 K& P8 M6 F8 o% S1 r b, \/ Yrand-dynamic
, N2 M- k& Y! j]
- h* u. Z3 s4 i% A8 S
" R2 j/ V+ H& T0 k. A& |" eturtles-own[
7 \6 @4 I- l8 K7 q k9 Ptrade-record-all
! K! U# _& t! v; i;;a list of lists,由trade-record-one组成& R' }( e! W' V+ c6 ^3 B
trade-record-one6 g" M7 R4 I8 g3 k% A
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# ?% x H2 v% W3 f$ Z& a) l! n1 `( M" b
;;[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]]) x1 y% O1 O9 ^0 M; l1 B
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]
% h5 k1 s' |9 _. Rcredibility-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
- D+ U9 G. @6 X4 r8 _neighbor-total4 z0 z C1 w' }3 Z7 z7 ~
;;记录该turtle的邻居节点的数目# u: \4 V) a/ n9 }6 Z
trade-time: B' p/ d6 x: w# o, p% c6 ~
;;当前发生交易的turtle的交易时间
3 r' t0 u. j i8 ~" @appraise-give& f8 F/ x* L7 N; N' O1 `( }
;;当前发生交易时给出的评价$ i! h+ O7 Y* X/ z$ u
appraise-receive+ X1 z/ b9 s5 F) v# _
;;当前发生交易时收到的评价
% p- ~; d# r/ O' ~8 Mappraise-time
8 y" H) |8 ^- H" r/ ?;;当前发生交易时的评价时间
3 L) F4 _8 Z- [local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 h3 H+ l0 M$ Z- k& a- y* strade-times-total0 U- y) Y* [0 ~7 n' H, ^
;;与当前turtle的交易总次数
4 r( e" l5 _" z8 U, Z. N) g( J* strade-money-total
* l J4 b3 G+ U( ?$ C. |;;与当前turtle的交易总金额
2 r' W- i5 n- |# ]local-reputation
4 e5 L2 r* r- l8 ^" Yglobal-reputation _- `" o6 c, l' ~* `4 z& ~
credibility
2 x5 M6 H5 m/ {;;评价可信度,每次交易后都需要更新4 q5 J, u0 o/ [, U$ X
credibility-all
& X; s5 _. o5 U5 h;;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( I7 {# L% O6 z& n/ R
) A( O- h, E O0 s8 ]6 ?;;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
" |$ H; h5 L+ ]credibility-one
: H6 l. J% }" c( v# J( S( r;;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 _9 m# B1 } x) D
global-proportion
# y+ |9 ?) G$ g* _% Vcustomer3 _- @% E, g& a5 U: i
customer-no$ |0 T8 Y2 x4 _
trust-ok
6 T1 a* f' g" Ttrade-record-one-len;;trade-record-one的长度4 x/ Q# s1 k& E1 g+ l0 J# ]' M
]) w; A/ R1 B1 G
' y3 q \4 Q% w8 ]1 |;;setup procedure [% n: L# E" J$ `5 ~
! A2 ~. Y9 I* h$ i5 i% d% T7 A
to setup
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ca9 n( A5 _, C3 }4 O- k. ]
+ s. x+ n5 ~2 C* Yinitialize-settings
) l3 @" P" a6 l5 f8 | h
2 F3 N1 M- P. ocrt people [setup-turtles]
# ?$ Q- ^" a/ [- F
+ i9 U: a1 G* ^9 e# F; l: b* mreset-timer8 {" X9 J5 r: r) X$ b D, k: N3 D: T5 m0 ^
' o$ |+ [' f+ K% i+ r& l q; h+ A
poll-class
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! B. z7 `; o3 {6 m, jsetup-plots6 f8 |- x# j% f, t) @
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do-plots! `- D: j3 H/ O
end7 K4 E- E/ Y) h
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to initialize-settings
: x, f- \3 i8 m7 ?3 \* G$ j% \
( u4 L3 p: x% [set global-reputation-list []7 I! @- m; e4 x+ k- P+ g$ v
9 a% u! b+ O8 ^9 [5 T, Sset credibility-list n-values people [0.5]3 ^8 ^9 X* \+ u* U, P
+ _8 ~$ i7 L* t. q) V
set honest-service 0
+ c9 H, e& g, Z4 U# z! y( S2 c2 ^ ]/ @# W3 x4 M! m
set unhonest-service 0$ Q2 Y0 P" Q- z9 P+ h5 _5 H a8 x
/ x, `4 w0 q* A* V: ]) m7 _8 aset oscillation 0
8 X6 u* b0 m+ x6 ^" J. }
- O. b4 b1 ?! b6 Z% j2 uset rand-dynamic 0& ^& E* I# Q' ]1 y
end& u! S( S' v9 T6 j5 c
5 G% f; o+ X9 O7 y+ gto setup-turtles 3 \+ c: v& b$ H* k7 E
set shape "person") n# d; K) t% u! l" @7 ?4 W6 k
setxy random-xcor random-ycor
4 X. z/ W% u+ _3 |$ [/ Yset trade-record-one []: x! h& G1 V/ K1 P
! @" |" v; W7 j
set trade-record-all n-values people [(list (? + 1) 0 0)] o* S6 b: E: `
8 ~! k: A! d$ @6 d) X
set trade-record-current []
1 r2 r8 Y7 H% i& K$ hset credibility-receive []
+ l+ h. j7 z5 V' hset local-reputation 0.5
q' {* J% L4 x# Y. ?4 oset neighbor-total 0
, ^6 L, ~. I1 Y$ r' Oset trade-times-total 05 V( J! }& P# `% L) `3 A; j% ?
set trade-money-total 0* n/ E, B$ }# o0 s% e) _1 y9 E
set customer nobody, G$ F; |' F2 c. n- |5 z) g6 m/ U3 C
set credibility-all n-values people [creat-credibility]
0 r! U3 i- l1 H& E, fset credibility n-values people [-1]: G2 i: s+ j* V0 N; I9 d3 p
get-color
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end" C( g/ t( w% @; P9 g
, E8 u& ?# @* G9 Y9 ~, Xto-report creat-credibility
; y1 W1 g3 Z2 ?7 i! \- lreport n-values people [0.5]' t! v3 o8 y+ O. R. y
end
; }! t& d8 ^9 n5 a$ m2 O) V1 k& ~5 N6 d2 F/ [4 E
to setup-plots* ?, r0 e% l1 P- [, I# s' o
" e( B# A# n, p0 ~0 Qset xmax 30" \8 P* L. p# \! |9 U0 u
8 f9 z" z9 ?2 r; A5 Z, n9 F
set ymax 1.0
. F1 j; p1 N' }! Z% d6 u# w8 u5 y0 T P6 j6 l3 ~
clear-all-plots
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setup-plot1
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setup-plot2 p5 m. T9 |' G' j, p. @
0 n" V/ P1 x" u* ^' asetup-plot31 [* x$ B: k+ ^* P w5 G$ I1 B
end$ X1 Z: V' b& E
8 S M% k, U2 s1 @! q8 M* P;;run time procedures9 K. d* k6 e: _! w
3 \2 {/ E5 f1 j) Y, S$ ]
to go
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ask turtles [do-business]8 Z. b8 b) b% r4 p
end
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to do-business
- V7 o K, G( T' J. Z+ k7 n4 ]: v, S! Y. i: \+ A6 p" p, V3 R
+ f$ R" H1 J/ C2 m! n
rt random 360
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fd 18 Z; c! o d1 R i' ?/ q z
) ~; g' [' Z4 U8 g6 c: ~# T6 h% {, rifelse(other turtles-here != nobody)[
8 m) P) {$ c. c& i. K% x# [, q
2 X/ F' W3 C* q/ K0 w4 xset customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
, Q" M! w! r/ v8 ?5 Z[trade-record-all]of self8 [0 P! G1 E N1 c# v; g
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( n- h. r* X6 b$ Y( w! ~: G1 r' T0 N& ~& [+ G$ o& G! v* c# m
set [trade-record-one] of customer item (([who] of self) - 1)# M* Z0 A2 A3 T
[trade-record-all]of customer, b0 L2 h. D7 t8 v8 v: x% w- r
6 [3 I! `, Y5 cset [trade-record-one-len] of self length [trade-record-one] of self8 o! V! s/ L. b6 Q' A* X0 [$ b
7 w4 B1 h# s+ }9 g- ^: E7 r% c
set trade-record-current( list (timer) (random money-upper-limit))1 h3 m5 E& E: v1 q
! t1 t7 |' U# sask self [do-trust]% `: b' b/ Q1 _' E7 s; u3 A% n2 g# ?6 q; D
;;先求i对j的信任度, t7 w7 A( ~- S. |& v5 K# C" S- _
) o. l$ e2 u! {4 {% W" m9 i; nif ([trust-ok] of self)" ?9 x Z7 k! ~( c
;;根据i对j的信任度来决定是否与j进行交易[; X0 n3 P. U! l7 M
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& k1 b/ ~3 W: {% H( i$ g) }
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[% A& c7 J/ p3 p0 p$ Y
) M C& `0 l3 M' M( X5 vdo-trade3 S6 Q7 A& N4 C8 n/ C+ R
% C+ @/ f+ G; N1 _( T
update-credibility-ijl
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# }6 o+ j1 q4 N5 R5 a$ ~) ~: D* Jupdate-credibility-list$ p# T! D4 \& ~+ M1 {0 ~
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: ]' l5 @1 N$ h/ f Y6 eupdate-global-reputation-list
5 w/ o9 c" M2 E
1 M; L/ j9 ^& C% e5 f: _poll-class
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, K: w& D4 L D; jget-color
% x9 f; \. C3 E6 k7 E6 W9 C
1 z$ S3 D6 h7 ~# d: w6 B]]/ D! x7 d- j+ O0 Q: Z$ l$ P* J
. K- B* ~" J1 f; G/ F; f; u% [8 g
;;如果所得的信任度满足条件,则进行交易
' b3 T1 ~* n! p& o) i- [
. R8 ]1 h9 u$ I; z6 G$ U[, p7 `2 N" N& V( ~
+ C m' Y0 a# y5 O; V) n z
rt random 360
6 d. u1 t) r8 B
2 @% p1 e# @8 s( ~fd 1
; g$ J% o& R c/ v
1 F- A! a4 A# R3 \0 H( |; t* S]
0 L, m: ?7 Z; o7 G* c& u" S/ u2 S* {
0 J) x7 m9 `1 {8 m. h. Uend8 d% c2 f; V% w1 w/ c! I+ R# J5 o
4 r. X p7 e4 W2 J% Y8 h& v3 Sto do-trust 8 B) K, m- K. e! I% k) m# R3 ^
set trust-ok False
0 e7 y3 q" {0 ~ g6 k$ x: k1 Z% ^1 ?7 x4 U
6 t; }% [! `3 ?6 i. olet max-trade-times 0
' l2 J8 m0 v: H4 P4 d9 a: q; wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* y6 {9 m. k- R% j2 k6 T# h: Nlet max-trade-money 0. x" e+ U/ N* v! y1 N* j" H5 p: r
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; k' C# z) s" m; d! d
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) o) S9 B q. l( s
& C% R/ S6 a/ `6 z& b7 T) f) h: X" P l! J0 Q. `! ^
get-global-proportion3 _! C* u* C8 e3 C0 D
let trust-value2 b4 U5 a% `4 r- F3 i7 x
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)% E( X( p+ A) k
if(trust-value > trade-trust-value)
: [0 i' t# g/ Y[set trust-ok true]
, L. K- G; k) |+ d; n, @end' h5 {: t! a6 f+ T) K
* O7 @; R* _+ o8 xto get-global-proportion8 B1 a/ b5 A- m1 ~ W+ E
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 V$ U9 s8 N; e K, s
[set global-proportion 0]
- K+ @9 p" l7 W; U+ |4 u[let i 0
2 C1 i9 p3 B. R! |6 @2 dlet sum-money 0
5 S% r1 }! ^& X3 O. Z0 vwhile[ i < people]
# T4 w9 K" ~9 k9 f1 N6 P! e. x: x[
1 x5 \4 |& G1 n0 Q: [if( length (item i; |" q V- }$ S, o5 a1 M! F1 l: ~% i
[trade-record-all] of customer) > 3 )( m9 G# g" y8 e: l* r
[
/ ~) p' h: f, h$ I9 [$ E4 M5 ?set sum-money (sum-money + item 2(item i [trade-record-all] of myself))* \; ~/ Q) z c& R1 ~
]7 d, r: E4 J- z: n0 L# N
]
9 `3 N0 C) T8 ? b* c% jlet j 05 }. R: j" Q: N, b1 X* I- Z# M! d
let note 0& @* C7 R4 o8 B1 v* V6 A0 h! P
while[ j < people]' G1 U$ T7 R1 }; m7 r5 f9 f
[
! }' d' D4 r- O" B3 f: p; x/ Fif( length (item i
$ x, ?& w2 H" K7 P/ \( U[trade-record-all] of customer) > 3 )1 u3 D' ~" l9 Q3 e: U
[
5 ~- Z9 T/ @6 U3 h& J. ? K7 M% Aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). m6 K9 l! V& e& E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: F2 t- ~2 E- u( a8 e
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], d1 g6 W4 i/ @ z8 f
]2 N* U1 O+ y0 Q. N& b8 Z7 d
]
6 s; ^0 [9 n( v' @5 h; uset global-proportion note3 b! c* f/ k' H6 d4 M5 R& C3 i
]3 b1 M5 J+ g) x
end
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4 p& a$ T4 ?; q% f& Gto do-trade
2 |9 I. X0 T% ]& D0 _' _;;这个过程实际上是给双方作出评价的过程: j; D8 h0 c6 E9 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
. N& h0 Y5 V" i/ Z; N9 { Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价6 @1 P* {! ]* }8 Q# I' w
set trade-record-current lput(timer) trade-record-current
H1 q7 L5 P9 d;;评价时间
4 o7 s' R/ T1 {ask myself [
$ v2 h: V" a' N% P5 Z/ X6 Pupdate-local-reputation- E5 n+ e! f; G2 O1 T; J" ?
set trade-record-current lput([local-reputation] of myself) trade-record-current( b* t) e3 ^- c6 }6 l% V) w7 ^
]& _$ b' H1 Y+ D4 C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ M6 E, N8 h3 Y2 j, d;;将此次交易的记录加入到trade-record-one中* {" v, @; H3 u
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
3 y# H- X* u8 B- D+ o% \$ clet note (item 2 trade-record-current )/ H+ M1 @7 A$ Q, @3 n1 V
set trade-record-current
3 z( W6 R& `4 o3 i6 o/ f4 `/ D(replace-item 2 trade-record-current (item 3 trade-record-current))
8 I: s, r6 E/ Q. p* Iset trade-record-current
3 i; K2 ?. N5 m1 I4 N; ]9 k(replace-item 3 trade-record-current note)8 `" V/ ~9 d$ l1 _; v7 [
. P6 D4 L {3 L$ j D0 K6 f' ]
% j5 l9 ?/ O* M$ v" s5 gask customer [1 Z; |6 v4 ]8 u, L1 |- V6 t+ H
update-local-reputation
. ?/ j& V" M9 _; bset trade-record-current
0 A5 `) C5 E/ W/ {(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 k! a( `! f* A& P' w
]% \+ k& _/ X$ r
7 U x- I$ B& Q: E
' O0 c# E3 ?( V4 E
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 I9 i8 Y& h* t) i% X) o. k; ^2 C1 U3 j+ n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; o; n+ A U' q; m;;将此次交易的记录加入到customer的trade-record-all中0 ?* W2 [' r& j" d2 |6 O( G
end
( z9 ?: S E6 K% `
7 ]1 K9 S0 t' V; r" n0 Vto update-local-reputation
3 H8 \5 t% o+ a3 q) N2 k2 Oset [trade-record-one-len] of myself length [trade-record-one] of myself
" @& b5 Q* Z8 P: e
% d5 _" l0 R# D. }& N$ o/ W3 {1 U$ b u3 h$ s
;;if [trade-record-one-len] of myself > 3 + {7 d8 h* I5 r! \
update-neighbor-total
8 ]$ M, W) l$ e% [;;更新邻居节点的数目,在此进行
0 R6 ], Y) d' ~let i 3: P: Q! Y+ E. @) s z, Q$ X
let sum-time 0
" F1 n3 Y. |/ |" J9 ^while[i < [trade-record-one-len] of myself], @& U. M7 `6 h, }
[9 ]5 k! s Z4 d3 N/ N. W) M8 S
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! }1 c7 z/ g+ d4 e' z: E
set i1 Q1 o5 o: ^( i$ L- f/ k2 ]9 o
( i + 1). o2 Q: J+ f; ~$ s- k0 l
]9 r9 H4 j3 [& k/ z. m/ P
let j 3
3 {( B) z" `0 ylet sum-money 0. U* w$ L' ~4 W2 c+ [& ~
while[j < [trade-record-one-len] of myself]
1 B, T9 _0 {$ t) k4 t6 _% Y8 {[7 f( f& t" v/ 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)
' E9 l- o5 b+ m* f- ^% a9 w- Xset j. [; R8 u% y, j7 Z T
( j + 1)
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let k 3' ]; S! Q0 s0 j$ z2 E4 E$ l
let power 0
! n7 f- r" _, Ilet local 0
) L2 B0 f1 M2 \) j' Y4 ^while [k <[trade-record-one-len] of myself]: G9 B! V1 k( x& p: `2 `
[$ r2 A0 G9 ^! Z( ]- G: |
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) m& @; |# y
set k (k + 1) ^6 R i8 }9 a4 e5 d/ P; \
]
& P0 a) J# F5 {/ K. N' [set [local-reputation] of myself (local)5 H) \* M( r4 M: J9 _
end2 F2 H* N( d8 D7 a
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
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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。) k2 ]: D- p; \0 ~, {/ c/ i
let l 0: }4 i: s/ c% M c1 s9 o, f
while[ l < people ]
# C6 b* S- z: l3 U- V2 R* 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/ d( L' V1 ^/ p/ B J6 S. s1 @0 w% L
[% `' ?6 }( s- @" s8 q" Y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) u1 a, i) O" y! e8 r9 g/ U3 o; lif (trade-record-one-j-l-len > 3)
/ O! z; ?9 J, Z0 d2 Y; ~0 S; [* v[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
3 |4 V D! T! D! g* M, h2 L/ flet i 3" f4 Y- O. y4 ?- X; o- H) K
let sum-time 0
' n9 X% X: g3 Q# C, q1 O Z2 owhile[i < trade-record-one-len]- e3 G: |0 r s* H' S5 F3 }
[
! l/ N! w0 V# J6 O! J1 dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, h5 r! j+ u% Lset i
- v" t! i( N k1 l8 C B6 _3 u( i + 1)% ^$ O7 L$ G+ v+ b# Z
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let credibility-i-j-l 06 a1 ]; _7 }5 @+ K5 u
;;i评价(j对jl的评价)
1 f m0 ^1 S0 X9 C+ Jlet j 3: q/ A( E& o* n0 B
let k 4
' y( a" H! y% t+ y$ b; a* G7 cwhile[j < trade-record-one-len]8 O r1 y9 E, D8 h# V
[
$ M5 n! n a5 |- j. 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( k0 v* B3 [) V" f, i4 R9 a( C1 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)
, J8 y# |% Q" G" v" M% F6 L8 Uset j6 N" S- k4 _7 j4 j! p
( j + 1)$ k1 m8 w# }) ?- k' i
]. [( t( ?7 a+ K4 O; d% T& r
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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# s6 u% L, D6 u3 S8 g2 z! mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ z* P, W, K6 m- b;;及时更新i对l的评价质量的评价. [1 f* S2 G+ H' i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! @ E ?. `( U: C; Q/ T; x, ?
set l (l + 1)
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. P1 }8 j( I0 Dend
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to update-credibility-list
/ ^' ?. U# s4 n! H$ ^let i 0
) Z3 V1 v) V+ \( O2 P b3 c3 z. b) ^while[i < people]
$ I- F7 I: i: l4 f i; ^+ v[9 s* y. J, q; n8 U4 `" `7 v! R
let j 0
( u& }: e" u3 N* ylet note 08 x& o4 [( h9 _( T5 v, Z
let k 0, }$ m/ D% C& U8 T* J$ Q
;;计作出过评价的邻居节点的数目
, A! \6 s8 `% o: m q- g3 {while[j < people]
6 h, v' U9 X, m/ m4 _3 H2 e& Y2 q( K[
! h0 C: U0 E7 `$ }2 A1 N* Aif (item j( [credibility] of turtle (i + 1)) != -1)
; V- b1 F! ] z6 {& }' t' T' v* {;;判断是否给本turtle的评价质量做出过评价的节点9 H9 |! @ ~1 a g% r( c
[set note (note + item j ([credibility]of turtle (i + 1)))4 S6 U$ q7 H6 V/ V- q" k2 Z0 a
;;*(exp (-(people - 2)))/(people - 2))]
: |+ i# X" W8 f/ ~) o7 V. Oset k (k + 1)
# x3 n0 f! W6 U# T]2 s+ c4 f# K1 R' n
set j (j + 1)2 w% E* D, S8 I/ h3 a
]0 n7 p( A, V8 g
set note (note *(exp (- (1 / k)))/ k)
" e9 Z5 e% r, p+ v$ iset credibility-list (replace-item i credibility-list note)
) X, R& M5 g2 r/ \8 S0 {set i (i + 1)
* k" O+ }- P; M2 B7 P( Q]) I( X- _' [' x4 {1 L( H
end
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to update-global-reputation-list0 [, n1 F% A' k
let j 0
, t# K+ k5 P O! C( [while[j < people]
1 c$ u' g3 u# n' H' G[3 `! m% G+ O* \
let new 0. O0 W5 ]/ v0 y! R8 v2 Q
;;暂存新的一个全局声誉
# y: @! m" w! f slet i 0
4 M9 v) K) Q h; Z: }let sum-money 0. v! J! ^# M9 q# G: ?4 E1 d1 j
let credibility-money 0
8 c. q& Q, @0 u. qwhile [i < people]8 y) [" j% P Q; o& G1 J
[7 \! l% ~, z' \$ ]% u5 b$ ~
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& i8 y ^1 n7 ~) o" D; M7 B3 h! \set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( U( o& X0 S- M0 ?set i (i + 1)9 S: \- B( \% R6 v* P5 Z
]
; h% a% _ n. H0 k4 F* z' U2 ^let k 0
$ w. k8 Y' ~' a" K; F9 s; wlet new1 09 n2 {2 c9 _9 ]2 o
while [k < people]% v" d5 s( T, I# e; U+ G/ G
[
) o* p' Q8 P$ A$ Vset 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)
: m; s3 k, b- j& y3 j) Gset k (k + 1)" W/ O, L x( C: X9 }
]
; Y/ U& K" T1 a, pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / E7 }) ^9 F: A8 A& C- N/ \3 x
set global-reputation-list (replace-item j global-reputation-list new)& y; r2 Y+ T3 b# h
set j (j + 1)
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end, g0 i. X; {( S8 j( p- ^1 l
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# x/ ?5 }1 @1 ^
+ R, d# m0 H: G3 I9 G( o% y
to get-color
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! @2 j% U8 r. xset color blue7 O: r1 E- J( i+ X5 h" f# n7 T
end) [% i% \' }0 U+ C7 X
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to poll-class. C, B: R2 b/ y& h! x
end
" _/ e5 ^( L& F8 I& ?# S0 P( W
+ Q1 s: V7 e3 V! ato setup-plot1& N9 s/ n: u7 B6 V
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set-current-plot "Trends-of-Local-reputation"7 T7 y7 b5 j' Q$ k) a
0 |4 i8 G% u5 A2 z. X ~set-plot-x-range 0 xmax
% z1 W- l- h% ^9 V; k& H, V. C
; \5 e* m. x' B3 }/ Mset-plot-y-range 0.0 ymax2 R, ^4 g% Q- u4 ]1 f4 l* R, n
end
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4 d( a$ `) W: `5 m0 ~1 Xto setup-plot2
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' t; W+ h0 p& f/ E6 Iset-current-plot "Trends-of-global-reputation". g. m. h' M( f/ |6 S
6 C: y7 C4 v" Q6 G6 R+ Xset-plot-x-range 0 xmax
4 h! i% i# I4 ^+ n; z
( Z l) y0 d( r6 K0 p7 Gset-plot-y-range 0.0 ymax6 o; L3 A, X* P/ r6 ^, U! H* t' _
end/ C. `4 e# L! R& E0 w/ O/ v5 _
: H, M' D3 i( p3 m9 \4 G0 ]
to setup-plot3
" F( `% p7 \0 F; N8 Z+ r1 f! d9 l" m4 _9 U
set-current-plot "Trends-of-credibility"( ]8 W% j* q, Z6 A# e
9 @8 b; }9 y* l. j# y( `
set-plot-x-range 0 xmax$ k( l# S( L: w
4 {! N& m, H& Dset-plot-y-range 0.0 ymax
% P# j$ T: G# Z3 S7 pend; P6 A. g& K! F9 G
/ I) X4 s4 D: Y5 P T( B0 mto do-plots
" r9 {$ Y- s0 b/ n. vset-current-plot "Trends-of-Local-reputation"5 B; x' d' o! }; ?
set-current-plot-pen "Honest service"
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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