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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
8 g# a k+ I" w2 Y U9 y, Sglobals[% Q$ L0 B8 ]$ f* n2 E
xmax& r+ S. N# f. f1 o- I# ?1 z( j% R- f
ymax$ R1 B, X. l9 b! z. A- Q
global-reputation-list
& b0 V H6 @/ k* j- k; X3 u& n- b
; J6 d/ C6 p3 I;;每一个turtle的全局声誉都存在此LIST中5 D# I1 T1 j) ^: ?, y) S. @+ z0 D
credibility-list' a; X C$ [# `+ n# v
;;每一个turtle的评价可信度 S2 M6 u: E5 n
honest-service9 u4 Y" @! x* O7 U0 { e& m
unhonest-service
5 {. z7 S: M/ e7 A. H$ Voscillation) w. U1 U4 L& l0 Q" B; [1 ~
rand-dynamic* r, F* X1 I8 k( |+ j
]
! u. f8 q( X3 J) t
; ]0 d( i: T- O5 [. L7 j3 s2 M& [turtles-own[1 H( S8 p$ x' V: R6 {
trade-record-all
; n2 J: G" ?- k% s8 X! V;;a list of lists,由trade-record-one组成( Z# ]# X3 o( H/ c' r4 a# r
trade-record-one0 M" a1 i; V* z; Q8 s3 M
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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& f& ?$ v8 B2 Y;;[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]]
. }" z% h! `* G9 c8 Q7 a' Qtrade-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]
" M0 y/ J# f. r0 }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
& i/ `( {) F5 O6 Bneighbor-total1 b$ S$ v+ ]4 h+ y% B& X- `
;;记录该turtle的邻居节点的数目2 h5 ]1 ]; i- V- g
trade-time) l6 ? v4 a; H0 ?& C( }/ U
;;当前发生交易的turtle的交易时间% l9 A+ l! {- f) z# f) b
appraise-give' {# I/ D% A. U3 N
;;当前发生交易时给出的评价* U( d, F( q/ ]1 m j7 G5 p+ ]( e
appraise-receive$ z* z8 G8 m2 Z; I( }7 F! |
;;当前发生交易时收到的评价
: M6 M. W. \; j$ |# fappraise-time
8 j# F3 |; L! q;;当前发生交易时的评价时间- z C: s. l7 z; x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: q) a5 f+ Q5 y. m* rtrade-times-total* p1 A* ^# ^, N* `+ p
;;与当前turtle的交易总次数
# B' q4 ]3 W8 ytrade-money-total
. m* N7 o. r- P( l: f8 c;;与当前turtle的交易总金额) I% {$ Y' h( f, T
local-reputation( y3 h' I; n# l
global-reputation- @* U$ m- L6 s8 ?8 o0 k* M
credibility
# p' `: P( x( r" x8 O3 ]0 \;;评价可信度,每次交易后都需要更新) J& ~: m2 i' \3 P, Y
credibility-all9 r3 c' C H9 q. F4 h0 P
;;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/ y [! C: R! z1 ?0 I
" M7 w" w) P1 ]! Q* |6 S$ x+ V
;;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0.51 ?% U1 r5 ?/ q* V- k, R, U* L
credibility-one
$ t2 z& h9 L- C. @2 d, s" F1 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
, a3 ~/ B4 j6 H: Sglobal-proportion1 g& o" w2 b. w8 c5 ~
customer
) I( F6 x2 q2 e. ^' }customer-no
7 t+ O# c+ Y& {trust-ok
# a9 p8 J9 a- _) ztrade-record-one-len;;trade-record-one的长度/ i* o; J' `) o) B
]
: w* y$ S; E% X9 {* `# p. `& f V9 W) s! H4 R" L4 o
;;setup procedure
4 V W6 _' }% ^( M
, i( m. w5 M8 Z5 t, R- Uto setup
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ca
, h4 w+ I- a- [5 B8 t4 L- H |& t% d4 m
initialize-settings F% o9 P: [( Q4 n) S; d, l7 c
, J7 U2 Q \& N! [( Bcrt people [setup-turtles]8 A# v5 r2 H& q. j
: {/ g) J9 o M O9 x; |* d6 O2 Vreset-timer* Z+ }( o- s2 s4 i" i
1 p+ G( ^5 K+ Q8 v% X1 }) ~
poll-class* a5 z6 ^% p: K) \! B& i5 d
8 c' ^; q6 }+ _0 ?* P3 \setup-plots
; r9 u0 A+ H i7 _7 p) Q" w( G2 D8 l6 j
3 g& N$ `' r4 G2 m) jdo-plots
$ D# w3 K3 r! n2 U2 z' \end
; l* J" y) ~# q( Z9 O8 R
2 v$ ]' f( T& @5 w$ U) d$ J) ~to initialize-settings0 w I: g, m" F1 Z% X
3 j, V7 e u9 [
set global-reputation-list []
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; G5 y R9 V0 \, U( aset credibility-list n-values people [0.5]4 ]/ g# j. z! G- l2 ^, b' A! ^
1 G) w8 \. R, Q6 y0 |8 _$ z
set honest-service 0
$ T2 x- X$ l/ A
, d; s3 C1 l1 N3 o, }0 ~set unhonest-service 0
s3 G" Q3 D: _. K A) b6 A2 H' ?! y
: [) q' N, s1 Z8 n2 q& A# Wset oscillation 0
( O+ @; c0 V; {
2 G3 S: f7 N8 wset rand-dynamic 0
- ?2 \! i4 I- i6 `; y) j( v$ uend; w: D+ M* q* S0 j+ F( ?9 z5 Y
+ V/ u+ I9 f" k- C* y( ito setup-turtles $ q$ }9 u) N1 T+ ~% q
set shape "person"9 |% l( X1 c# m* ?3 V/ I" H5 Y4 C
setxy random-xcor random-ycor
, ` o. V7 ?/ l! L" Xset trade-record-one []2 X; q3 r' h( c" ~/ U0 _5 G- H' x5 X
/ X+ y# D7 z3 zset trade-record-all n-values people [(list (? + 1) 0 0)]
5 ~" e( E( O& j5 z
3 K. z5 f0 T, }+ `- }' O4 B" w& S' }set trade-record-current []" V8 O* J! y0 d9 q1 _. F. F' F
set credibility-receive []% b" H i+ R; ]6 U, V, g1 u
set local-reputation 0.5' ^# y! E. N5 `7 A' \ j% q
set neighbor-total 0
7 u [2 p% F+ b+ @set trade-times-total 0
3 k1 w) K+ l( \, }8 B9 Xset trade-money-total 02 f' l/ S! Z: S, B+ U# r' O" U
set customer nobody
& u' v( `+ _" J3 t% x- {4 ^) |set credibility-all n-values people [creat-credibility]
+ @# ?& g" N* C; o: Tset credibility n-values people [-1]) E7 C5 W5 J K3 f6 r8 x
get-color
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end
# e1 b2 [/ q9 B) h5 Y. l
7 C6 A; d( m$ i+ mto-report creat-credibility) S, Z8 f1 ?. g1 M
report n-values people [0.5]4 \" i) Q* w( s& d7 I
end) W) n- U0 H# A% v; T
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to setup-plots
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& A& L7 p4 N' X8 `2 Fset xmax 30
0 j$ G3 a% }& Y2 W8 w0 w' [
$ ]/ s; \8 M P/ P5 F- v, s5 Rset ymax 1.0
. a d0 X. Y& B
1 y# p6 `4 U5 T% O+ L+ Bclear-all-plots
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setup-plot1
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setup-plot2
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1 Q$ |" x, O4 \5 zsetup-plot3' d, z) w) ~6 C& E
end/ x: e+ _! `" m6 }" j
( O4 n' h7 o. U7 K# `5 h
;;run time procedures
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to go
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1 |; Z9 b- Y% T& E( \0 Nask turtles [do-business]
# ^% G9 `; b% e; \end* S/ C& `4 J! M/ h
# Z$ I* G. ]) }
to do-business ' H1 ~; q& x7 z8 n" r" y
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! _! G% U' W- a- ]rt random 360: u; B: ~1 P8 b6 y& d
5 ~' t" l. O* A" S, o. G; H
fd 1
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ifelse(other turtles-here != nobody)[
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" f5 y3 h9 M3 bset customer one-of other turtles-here4 i2 M* Q1 S8 c- H
" W0 k" L" O% X8 I2 a& P;; set [customer] of customer myself
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# _) Y* d9 i4 z+ V3 _set [trade-record-one] of self item (([who] of customer) - 1)9 Y0 u) u: G9 S# A+ K- c9 W
[trade-record-all]of self
: f9 l) o1 j! i9 ~0 F# i;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
0 A+ [% m6 c9 W. N B7 ?/ ?[trade-record-all]of customer6 g1 z) o+ @" c+ [
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set [trade-record-one-len] of self length [trade-record-one] of self2 [7 N6 e$ B+ r) p
% o2 b' `! J, ]7 |0 {
set trade-record-current( list (timer) (random money-upper-limit))( B% B3 p. s( _" ~
' n5 c' L, N& U# B8 a# a/ @
ask self [do-trust]5 U1 J7 E* a" Q
;;先求i对j的信任度! _$ `" Z6 E, P# ^
1 [8 [ Y1 A3 b; I
if ([trust-ok] of self)
t8 t& H% ^! @. ?% h5 }; S;;根据i对j的信任度来决定是否与j进行交易[
* Q0 ]" l: f; [7 ~8 e7 z( x5 [5 Wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
9 w- ^$ u, y2 I5 `" c- G
5 J+ u- ? f3 K$ R- _6 }2 ^" K7 x; Ddo-trade# |, e7 G: c. Y3 P4 Y
: {& i' E2 N5 q
update-credibility-ijl& l, g; ^6 K& Y: U, h
; k! `2 V$ K! l# ]2 O) e L" u
update-credibility-list
: q6 ]' ^- n, {9 ^' @, u, P. U- E: W7 k
4 M8 j: q9 }' U& [/ X* L/ rupdate-global-reputation-list% M4 C: J. u" s
0 U& Z# j; r4 i- K$ G8 n
poll-class
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get-color* Z8 Y; U7 D* D' B T% z5 r
! m/ f: j6 E7 l0 X7 J]]: s; E. [9 M2 M7 \( P( Z
5 u' f7 X- X/ U& i& s8 ~;;如果所得的信任度满足条件,则进行交易
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3 k8 E. K7 W6 U `* c+ f[, w# G4 I. A) \0 u/ Y
! e8 C& W, N# `# @+ R4 |5 F
rt random 360
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fd 1
- n! ?# Y2 a O2 b
3 ]" }" Q: c, V$ b7 \* []
' X& b* `+ c j! C
; Z9 ] R3 l% N) ^" \+ Nend
5 e. ~ H1 O3 ^2 o: y+ y8 [: o8 [/ d; K% S. H j) L3 u
to do-trust
& K$ q' {' @6 K# @% B3 Zset trust-ok False2 x0 h6 H h2 ^6 F2 m
) L: c. ~7 ]2 ~2 k) K3 X- j) o. B2 b( w% z
let max-trade-times 0* ]1 ~& b$ t; Z& B3 o% p4 H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( F/ X) x( k+ mlet max-trade-money 0
2 y9 X/ F8 i4 d5 Z9 R/ p7 vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' n* }! _5 z5 g" E5 u& R
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 }: \. j9 n( |% z) S4 ]4 H
& S# G$ Z! A% m: W2 b8 N4 d$ ?
4 d9 U* E" z6 a' S8 Yget-global-proportion2 w6 _* O, ^ k0 G) I) @
let trust-value( l C- Z8 t+ }5 [' D1 B
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 ~0 a0 f9 Z. Y2 Wif(trust-value > trade-trust-value)
4 S4 D: d4 Z6 h/ n% o. f! j/ {9 J[set trust-ok true]
3 J8 J/ a0 P7 Q6 `8 y# _& Wend
+ {! E! ^$ X+ U8 `+ g O
! @% y0 r. n" N& o5 Mto get-global-proportion" g. m! n" X% Z& q6 B$ h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' X( S) `& d# W1 c; r
[set global-proportion 0]
% Y; x$ W" S+ B) ~; G I[let i 0
- F+ O V9 T S6 }0 ilet sum-money 0
: U6 C4 j5 _: Dwhile[ i < people]
) T5 K' M F) o6 ~! ?8 Q" Q4 m4 P[
2 Y4 I( p$ H9 H, C' fif( length (item i: M; K) H0 t/ h/ I
[trade-record-all] of customer) > 3 )9 R% K3 k' r* o/ v3 ~( Q7 h6 p! n
[
9 u1 ~$ ?% z7 w* t6 g, c, Z/ Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))' p q; j8 O; q4 B5 M# d1 j# z3 k
]
' C K; G4 P6 }, I]9 \) {. j2 \2 |& V, K' Y4 H
let j 0
0 k/ b1 W& J# h" x ?8 Plet note 0
3 A3 Y' X# m/ i) Ywhile[ j < people]
# D" g5 O- K- p g: }[
2 `& Q# [9 |) _, Pif( length (item i
) k2 K3 W5 |* E! K# d[trade-record-all] of customer) > 3 )' n+ s9 X( z& W( r
[
0 b( _' @+ L7 I0 c: i3 ]$ I& I. Gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 K1 U, K1 X. e6 A. K. B: U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& q/ e3 t" c! U& s' b* g* Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 o& B. ^ P8 c' f
]
- L H! T/ f$ t% ?% M4 z- c3 r]8 D# h# M& @; `. k5 m
set global-proportion note
7 a$ C+ }. Q' S6 a* S+ M3 o/ W]
$ \2 o; R1 P7 Rend
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to do-trade
: ]) L8 y: e! m2 x+ q;;这个过程实际上是给双方作出评价的过程9 z% w! T* D _; A. H0 q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, Q9 [% O# r7 K5 T* cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ h* U8 s# j* e4 t, s+ Y; cset trade-record-current lput(timer) trade-record-current- N5 ]1 |( X2 Z7 B
;;评价时间/ n- E: c! B2 a3 E
ask myself [
3 ^2 f; s8 ^' R0 [$ Mupdate-local-reputation. J1 J" {5 p: ?, o0 n& J4 N! B' L1 K
set trade-record-current lput([local-reputation] of myself) trade-record-current
2 m2 X# ^: R6 L8 p; n]
3 q0 E, s" }3 T' a$ Y1 X4 lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) W8 K3 Z) @9 z* Z, L4 p5 _" P) i;;将此次交易的记录加入到trade-record-one中
, l0 p& V! a3 jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* g8 J4 P2 h0 s# s1 J
let note (item 2 trade-record-current )
: p3 V0 I) C7 Q; P9 ]set trade-record-current w' a2 O/ x6 {2 Z( P
(replace-item 2 trade-record-current (item 3 trade-record-current))0 f ? C' Z6 b1 w, E. R3 f
set trade-record-current& g0 E: z, ^% R+ `, D5 {: M# A0 u4 ^
(replace-item 3 trade-record-current note)6 t" v" }8 ^, K- s! r* R Q+ z
+ c; o8 E. X9 D$ C* ?. Z
2 }. A1 s6 r" _3 ?ask customer [
7 ]* C+ b1 {7 Xupdate-local-reputation6 T" u0 I4 `& R6 z, V t! H# E0 b
set trade-record-current
* l% k. |) L; R$ d# U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- A9 \7 W% X9 |$ A' d]: E1 a) @% f. j3 j, K/ R+ ^
8 M# Z" H0 r) ?/ J. |$ C
/ K4 F# S4 ^# k. M! W( wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ X, k0 Q9 {! C+ `/ n! U2 b
3 C P2 A0 y+ Zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! c/ K: Y' g" Q9 i+ V& E8 p& C;;将此次交易的记录加入到customer的trade-record-all中/ V# B! I" P0 R6 E* [) l
end+ j- |9 z0 @( T/ N8 k" Z1 ^7 {1 D
6 B: [3 A% P& B' O' A
to update-local-reputation
6 l5 Q% g9 G9 `& _, r4 vset [trade-record-one-len] of myself length [trade-record-one] of myself m" c- B6 Y- R; P2 x. |1 M
1 W: a! a2 Z2 |& a2 c" O
5 ?* ]6 x. y$ d5 d: {
;;if [trade-record-one-len] of myself > 3 7 h0 _1 H9 N' _# Y2 L9 Y: O
update-neighbor-total
* D6 A" a2 H: W- ~;;更新邻居节点的数目,在此进行
6 o# C6 ^' }6 u$ Nlet i 34 E$ `" _0 X9 W& v# E9 O) V
let sum-time 0
. h0 V2 m! R. h) _+ ?& L1 M" awhile[i < [trade-record-one-len] of myself]/ O9 Z" `7 P1 |3 P8 v
[
1 h) v! ?$ Q7 V$ e3 @set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ Y8 U8 k. s' }4 X# v8 q, Bset i
; d* ?3 V U; s! S5 q/ V& }( i + 1)
' L7 j- l9 N0 B]8 y/ M6 b$ s+ e8 F0 Y
let j 37 [4 ?5 K7 r& X' ?, O2 s
let sum-money 0+ ^7 Q. u4 j: K0 B5 a1 g, F
while[j < [trade-record-one-len] of myself]2 O* W6 v2 y8 a! n; a
[& Y- c7 |) w9 S2 G& K! F, a
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)
. m2 x1 i" R) p5 F+ Z# wset j! B f0 b J2 Y8 ` `, k% n1 Q
( j + 1)
, r. f( h3 I X( r! v]1 ], `2 L. q! _9 N2 N
let k 37 @9 s6 O7 x2 H; J
let power 0) ?$ b7 u j7 `8 g g
let local 0$ w) F' M& e9 Z1 r& B e) {# ~
while [k <[trade-record-one-len] of myself]
6 o6 _6 m1 [8 i1 o[
8 R P, b, {* F5 A8 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)
5 w5 s& `# P: A6 @set k (k + 1)
% M ^7 j' ~: j. Z i( G]
8 I9 X' v3 b$ i( h) Z# yset [local-reputation] of myself (local)
7 Y c+ W2 z6 fend9 y+ y* M! S* V& ^) b& y: s
g) N0 P' Y: l9 q$ z, vto update-neighbor-total
e7 ]* V* v: f2 j0 a/ b1 ^: ]) _4 N& B
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" C8 _! ?* [* k8 Z0 M! T0 K8 P% T% N, a$ ^
& `- H" I. y" a. J, N0 W3 Wend
+ G& H) d' L3 u' p$ v) ~8 L8 M9 Z- U+ m
to update-credibility-ijl
% g, b" B* F: Y- J1 V1 l/ c# @0 d9 [5 Z* K
;;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。
$ A( H' M9 b9 a0 ^; _8 B- Elet l 0$ K# ~; X& }( i( G( L8 F7 `) E
while[ l < people ]$ Q3 f7 }4 t. Q6 j2 }) V. U& `
;;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1 p2 U( y- p7 i8 e! ]6 d& d
[
" w, G9 X* |1 v, { S& H: o: vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
w) L6 Z6 ?% c5 H4 Z5 Fif (trade-record-one-j-l-len > 3)
6 R* X% v# m `7 ~& @' s; R0 Q[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% Z: r# v1 W& w8 z- C
let i 31 X; A- E6 y$ r' R# X! x6 b
let sum-time 0
" s5 i( v) t, Z+ K0 y/ @while[i < trade-record-one-len]
, |, Y' x: M, b3 @[
3 \9 O) ]3 m) @# Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 \3 D* O% I8 Z, ]5 D" B$ Q- mset i
a7 J& }+ ]7 a8 w( i + 1)
m( h4 d4 L7 d]
6 q$ L5 J J# D: X. p: G tlet credibility-i-j-l 0
0 q4 }0 O/ N" X6 |- H. v# t' F;;i评价(j对jl的评价) \5 G* r4 b: h8 d, C' P
let j 35 |/ P! w9 O* X
let k 4
% m- j- i$ `# }8 pwhile[j < trade-record-one-len]; L$ _0 E# y# [
[' b* L& K: d+ }2 D
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9 \: M9 w/ Z. e; J
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)
8 j3 L! x$ B: _- ?5 t8 F7 j4 k, Rset j
; R) S7 Z3 @6 G1 X. a$ o( j + 1)
4 Y' ?4 e0 q( i/ z4 ~]7 n+ k7 X( O9 {7 u9 M! ?# g4 C
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 )): ^& Y3 x, j. w8 N, g# j
; b Q2 n4 U# Q) z! i9 f; v7 e! J2 U9 j: h! L
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' F/ @$ M! k7 \( T6 m; Q
;;及时更新i对l的评价质量的评价3 ^& Y0 W$ M( u$ u S% I! x' y5 e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 X: [" P8 _$ D$ [
set l (l + 1)5 M. Z) F% L" }
]
1 R; W# J o0 o1 |end
" a |. Y( Y, x$ P3 p
3 W: b, _; |6 ?! |" W4 e& j$ @to update-credibility-list& Y) `8 N0 f! F/ s3 M7 n
let i 0
( v0 @7 c/ [1 }& Rwhile[i < people]
9 I8 g7 o( u, ^7 a2 Y& Z' L[/ x7 x: c5 |; ~- O6 a
let j 07 v9 w) i$ V; ~8 ]# ~ @7 S m
let note 01 X& v3 C4 h1 j2 D! _& H
let k 0
# ^( y4 H6 G3 s: |0 S$ D% _. S;;计作出过评价的邻居节点的数目
% u# ? o: k+ b: Rwhile[j < people]% L% D0 V7 g' P$ N% q+ ?
[6 j, |/ K3 _0 Y. G; D6 ^
if (item j( [credibility] of turtle (i + 1)) != -1)- I9 s/ ]' H' n/ g1 h3 J" Q
;;判断是否给本turtle的评价质量做出过评价的节点
$ |2 i7 S& R. K[set note (note + item j ([credibility]of turtle (i + 1)))
* r4 Q, Y4 Q/ S d% n;;*(exp (-(people - 2)))/(people - 2))]" b' q1 S- I; ~: G8 n/ H$ v
set k (k + 1)& [) B, o5 q- v" l
]
6 ]2 b' y5 ?" e r) cset j (j + 1)& i& ^# Q2 t s3 g
]
: t4 P' `8 F' y" T( P4 y' Vset note (note *(exp (- (1 / k)))/ k)
3 s# i' e9 e: L' T( @set credibility-list (replace-item i credibility-list note)
+ z9 U1 f6 t# X7 @ g; Nset i (i + 1)
- B) [( ]2 `- W; P$ L( Y( W]4 i ^, z0 x1 ~/ F; g
end
9 y. g) U7 a; n1 G6 ]% L
; |- m4 ]0 W1 }9 kto update-global-reputation-list
" y ~7 I/ D2 G6 X5 Jlet j 00 j0 n/ t# S: _1 E8 m, G
while[j < people]
( k% e' T! b* d* O[
* |6 j+ ?4 E7 l( y1 Ylet new 06 R: f$ g# L* f4 z& I8 s3 Z
;;暂存新的一个全局声誉
7 V8 H1 Z- e- Qlet i 03 o/ o6 K, v* g, P. R$ ]! ]# z
let sum-money 0
! k& }) U! v" K/ x* V$ Z, a. w" elet credibility-money 0
. X, i! F6 G0 x: gwhile [i < people]
/ j6 U( U+ J6 J4 S, T* ~5 y9 u[- I' V% m' R- p4 c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- V# L4 t X: p+ A! dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* h* Q8 Z/ w/ x1 t" `1 y. }* d p
set i (i + 1)
+ j7 @9 G! H, K' o]
: x. s( B+ ?5 R. n3 ]/ Ylet k 0
# m' ]0 D( b' y" K% y# Blet new1 0/ @. T6 z3 X& M1 y ]/ C( o
while [k < people]) N" H: X# q; g
[5 f: u6 @2 ]* A/ K8 K; `# A. G
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)
# d1 O- _, E! l e: X0 Vset k (k + 1)
4 Z2 P! W6 M. G6 {' @, j% f7 y- g]$ m+ r7 d _8 d3 T, h# Z4 p, c
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ) r8 j# N/ x" v
set global-reputation-list (replace-item j global-reputation-list new)
8 f% [6 [9 b' P$ cset j (j + 1)/ F: D7 e8 g# f) W
]
3 P" `( U: L+ ]8 V8 f* i) w- ^end
5 Q; D" y3 O7 [; O/ J' [ ?' R4 |) J4 x: V- Q+ \$ I
/ h0 R j( G& X- s
& R/ h# p. b# V1 V3 ^ Fto get-color! G( j" {# X2 g. f* T, v
6 {+ W* j. c+ e+ \
set color blue( a" v7 P9 V3 h1 }
end
' {# R# q3 t' O% \; z
/ X5 v& ]4 b* L4 U D' Y U# U. Sto poll-class+ X7 u0 @+ B! L7 M4 E
end
, i8 Y$ z- e, K0 ?
9 b) D' t. h+ k. X6 G4 V5 rto setup-plot1+ v) O7 |! K, j5 r# j) @
9 B1 b7 ]; ?( a( F& x, l9 S: y- a
set-current-plot "Trends-of-Local-reputation"1 m) U8 q5 e' P
- g6 b9 x8 a8 R9 ?! ~
set-plot-x-range 0 xmax
$ S* V3 ?5 V$ [2 Z& k
+ o5 Q. ?7 H1 ~3 _) P6 M6 ~set-plot-y-range 0.0 ymax, W( Z$ X1 g: d
end
2 M7 K X" E ?; W6 u0 t; f$ d, g; ^* ?
to setup-plot2
6 X5 E# h& i& B! B& R0 V, J, S" U' S& \0 G4 _/ H! V
set-current-plot "Trends-of-global-reputation"; ~6 o7 @! B8 J" F: b% j
% j. i" p5 T+ p6 H" Iset-plot-x-range 0 xmax) n6 V3 A/ u7 }. J& o
( @4 W3 p6 o% i3 ?4 xset-plot-y-range 0.0 ymax
, C& G/ S g# [' i8 Lend9 B7 t5 h5 U* t, b: d: ?
8 R+ u! S; \9 B9 M2 c
to setup-plot3
% ~. `& O/ U7 I7 k' m9 q6 m7 G' Z1 q1 S4 c9 a8 V: x
set-current-plot "Trends-of-credibility"$ {' b6 t0 i5 c" _
; c3 N& f, u& E5 H" ?, Zset-plot-x-range 0 xmax/ J8 {8 D# A3 j3 J
. n$ U( h# i% C* Wset-plot-y-range 0.0 ymax
8 Y/ t( L0 a5 S2 Yend8 h; a6 z, j# o6 O$ E# Y2 e
4 n( f1 G# x6 z# k/ W5 ?to do-plots
) ]: S8 R' N9 v; S& c+ S% bset-current-plot "Trends-of-Local-reputation"
w% i+ L7 H! B* ]& ^( wset-current-plot-pen "Honest service"
/ T; d' `5 x8 q- ]& c8 eend( J2 [# @0 ^ K2 a
. t6 T4 O, M8 }1 V; s6 G[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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