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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7 X1 G) w/ X+ `: R
globals[
) J6 I# L. \+ s2 J8 X" {& C$ }xmax/ g" D; Q' M3 C% A) M
ymax
% r8 s! p$ R4 `' f9 _/ |8 n) mglobal-reputation-list `- X5 L x/ S4 G l" l# G! T
: q% l) G' b! e6 ?3 l( P# o$ `# O6 _+ J;;每一个turtle的全局声誉都存在此LIST中. X0 [! R( Z; c' s/ D; A9 b: J
credibility-list( }& s2 n5 n k4 X# H1 n: V& X2 ^
;;每一个turtle的评价可信度" s$ U0 F- r _4 G
honest-service
8 U3 M0 c( M- f2 c7 {) Hunhonest-service6 ?4 N# o, ?* Z' I0 I; q2 s0 L
oscillation: `- y% Z+ H0 E: {0 {! a
rand-dynamic0 x2 h2 H( p* \* n
], [: b9 f/ x$ M( I) Q; S
( w. n2 R5 N; m) _$ lturtles-own[5 O4 w2 {# j& L; ^( P
trade-record-all- u- {: X+ k- O" F8 s
;;a list of lists,由trade-record-one组成
1 [) R" s0 [7 g: gtrade-record-one5 l6 o5 B/ g0 B6 g7 R
;;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 o5 }9 S B& |7 {' d/ o
" v! E5 X% N' Y, N& v;;[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]]
, b4 v- u, k7 z! D$ H1 Rtrade-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]
! r# p* d* z: v" C1 O! Q" p, Vcredibility-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list1 ?. @$ H) m5 g4 q) d' x! D7 \
neighbor-total- u. F8 {( r2 _2 i* h9 a6 t
;;记录该turtle的邻居节点的数目
( \+ u1 @" z* o6 R- Ntrade-time
& s0 K5 h6 O) j c6 e0 p B/ |;;当前发生交易的turtle的交易时间
' Q7 ]# M! `+ V& e2 @8 Cappraise-give) c+ l+ Z1 _0 O8 z& U0 b5 m8 H+ q
;;当前发生交易时给出的评价1 V8 t, d+ f$ i; x- L9 W1 G
appraise-receive: c9 p+ K& D( i8 b* [
;;当前发生交易时收到的评价/ d4 {, D) |' F3 I3 k* B
appraise-time+ B# `+ }) G3 |$ v3 y. z
;;当前发生交易时的评价时间
+ E4 }$ Y; ` o/ _6 r6 e5 Glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
# r. f6 I( @5 h, _+ p7 @4 `trade-times-total
3 t) u( U0 a+ ^$ v6 K( W" k! J! `0 y;;与当前turtle的交易总次数. x; d4 y- x! D8 i* B# y/ |
trade-money-total5 F# ]. D8 z. w% O# F8 l3 ]
;;与当前turtle的交易总金额
: |; _5 o" z9 H5 A) w Hlocal-reputation
6 J4 A% C/ W, N3 [+ n) y1 E+ \global-reputation
- ^5 s G/ ^/ g4 Q; pcredibility+ l* R% X9 x. [5 O; H& O4 [
;;评价可信度,每次交易后都需要更新
( x5 `1 W3 }6 W% Acredibility-all
0 \! i/ i: s' w0 ^2 J" N;;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; X$ U: |0 `: m0 L q
8 N% k) @: Q+ L, 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0.5
3 R1 P( Y7 X [5 b$ Ocredibility-one
3 I t6 G6 x% \* u* A9 ?8 d( [5 G;;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% ^' z3 ~1 ^4 v
global-proportion
) Z" {$ f- ` q% G. x, ~/ f) A Scustomer
$ A% s" Q. N) d; Kcustomer-no) O0 F2 ?/ Y* V9 z
trust-ok
' U2 @, g1 u% u, p+ a8 Ltrade-record-one-len;;trade-record-one的长度
9 C6 P9 b3 A9 H0 ~]( t& K J" ?& X; B8 t6 B0 i7 Y( t2 c
3 F$ y' B: Y/ X1 V, ~
;;setup procedure4 `2 W6 e6 P2 O: K: ^
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to setup: V" }1 s+ ?2 x! [* ~/ ]0 b
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ca6 A9 u, S+ }% S0 Z9 r2 R. F4 @1 f
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initialize-settings% B7 Y, O( {5 m5 z# }* D
" P* d4 }( i0 `5 {3 i- ^5 ccrt people [setup-turtles]
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reset-timer; H4 R0 ~ n+ V! I3 E" l ?$ h) @
: N/ o5 P2 }2 apoll-class* w4 A& z6 ~$ Y
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setup-plots
3 c D' G+ ?$ B6 H8 N9 S) x
$ w& C, ]+ j, s" h9 [do-plots- s: Z; j' \) T
end! P) r& R; C8 ~ F! H r
; b- V/ `# c+ m+ jto initialize-settings8 V1 @6 z) q( Z9 p R9 I* C, {3 a
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set global-reputation-list []
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: `% T+ f2 z! }9 O1 q' | _3 s# h. Oset credibility-list n-values people [0.5]9 f; Q. K0 e# E0 L; J% ?2 t
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set honest-service 0
1 S% }2 ~2 |& U6 J* Y7 _+ f. `. W/ a2 q4 X
set unhonest-service 03 B5 _8 d8 s! y5 c) ]
J; z3 Z A9 F7 ]' h8 \* \6 B8 I
set oscillation 0; b# V6 G/ Y( I: J9 y1 W5 f
; m0 m* L( Q9 X9 B! mset rand-dynamic 0
$ f/ g/ _" b) d" D; e( s% rend
a& L8 R6 R7 v& [" q
4 d |( r/ @1 p7 R$ nto setup-turtles ' t% k; e' l, n
set shape "person"6 p4 B3 M( }6 K7 M) h1 B+ y( n- {
setxy random-xcor random-ycor
$ K* i/ |; F. s- z1 K3 Oset trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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( M- K' `( z' Y1 T# a3 Hset trade-record-current []
6 f4 o& |1 b4 p2 tset credibility-receive []
, P G& P; [% [$ i( {5 l. G: V7 Jset local-reputation 0.57 v; v8 [0 r7 I0 Q2 r2 t# W+ H
set neighbor-total 0
: w$ l! @0 U& B/ F( b4 w: P- o; yset trade-times-total 00 c% I2 [5 U% ]: @" @
set trade-money-total 0% Z0 y6 J* \/ m5 N& O/ R: s% p
set customer nobody
4 K6 k5 ~, X) J- Dset credibility-all n-values people [creat-credibility]: Z' [7 D v5 |8 |
set credibility n-values people [-1]
) J: P4 n1 \4 F/ d) \get-color* S" V) `' j1 V; h" O: S( ?( u
' I3 x% U% s, ?' p+ G
end
0 [+ L3 s5 P, M7 ~, i* i4 s, z Z! g/ z+ u, T/ @
to-report creat-credibility
M6 Y) M1 ?9 D: zreport n-values people [0.5]: N2 X5 w2 l; F
end
% _" g- q: I5 Y2 w4 e _) t1 I1 Y6 Y0 P, r) c" Y
to setup-plots& p0 {0 B1 A. T4 I) x0 m/ e
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set xmax 30
+ t7 Z. t& V4 W9 q; P. [# R4 j% }3 ^# g3 m4 G
set ymax 1.0 y( h/ q1 u- O' w
% {, w$ q) a! m% |3 r
clear-all-plots
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7 d8 ~1 i$ @! B4 D) V/ \setup-plot14 {: Z9 _) @8 F6 n
& P9 X' e& L7 A/ h bsetup-plot22 R6 S* P& r1 z2 o5 I
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setup-plot3
6 W% q3 l6 o! K' _1 e7 e) d5 ?) Rend2 {0 X! t& T4 v2 z/ l; d
7 k! @5 l5 D% ?% T;;run time procedures: |6 H W, ` N- r$ G
+ N G- F/ N5 b) D: y* I
to go/ P; L" x6 U5 c3 O/ {8 V$ e
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ask turtles [do-business]
9 o$ ` L+ U! K: H" V. g! dend
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to do-business
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6 ]! s- m. Z6 _+ u, g: N% B' b ]7 crt random 3603 ]. [6 X/ i# _% B9 _! d
' `# n. h" O6 G$ H" A x
fd 19 H0 U/ j" X# g. j7 E7 t7 T# {5 Q3 M
" b& P* I/ R4 `1 K: W$ ]4 q$ \) ?8 s: [ifelse(other turtles-here != nobody)[* ^% q2 I3 X! N1 R: m2 {2 ~0 P
1 Z+ c# X! L" \" L( a: ?0 cset customer one-of other turtles-here" l, m' |4 y' i
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;; set [customer] of customer myself9 g; Y" @" o! K" A# d& C
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set [trade-record-one] of self item (([who] of customer) - 1)
- p% O+ J$ p4 {# [[trade-record-all]of self. R/ A, [. e0 n
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- } }: E/ r2 q; b3 F8 Q4 u- `5 ~" g' K4 F W) ^8 ?2 W
set [trade-record-one] of customer item (([who] of self) - 1)
7 b( ^0 n, w, ?[trade-record-all]of customer' V* s% [. }$ T* j
7 C1 L6 l2 [- v9 C; o
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
+ \' ^+ _' I. a2 }/ H
2 J) |5 n) u7 |# f4 ^) G, Pask self [do-trust]+ a! h9 f- j( E# ~" B& g
;;先求i对j的信任度
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- L2 s. F& ]. V2 M6 n. ^/ aif ([trust-ok] of self)/ k3 q0 c3 @$ U# T v B
;;根据i对j的信任度来决定是否与j进行交易[9 R* B' E- Z, D
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% K" G9 ?/ d. ]* M. J+ u& D
# t I/ d8 Z# d3 T% n$ r% b[5 V4 q, ] _( W
# q+ j8 e* h$ [- Kdo-trade* {- p) m4 q1 V, ~# n+ `
: L4 m# x/ I5 l% O, P! `7 h/ l. Zupdate-credibility-ijl
7 q+ ]# {. n! [
8 s& e1 f. ]& w. @. Dupdate-credibility-list
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update-global-reputation-list. H0 e# d0 I$ e& h7 L" ^
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poll-class8 A- Q/ E7 M. M! g( h! X M: k
5 \& x% j1 v" `8 }% a
get-color
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\& _3 h9 v1 {) K9 d% R]]7 J4 T# q+ s9 H) [7 e9 T
4 k/ u0 O: i, d+ ^; }
;;如果所得的信任度满足条件,则进行交易) ?, O( @. p3 R( _5 Z
) _9 ?. \3 G' s
[5 z, i; Z% B% t& O" o
! E1 T- J" S% z/ W! V6 e a; o
rt random 360
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fd 1
/ [6 q: h* D% i- R N8 ]' B) l6 D+ g6 J: u
]
: y) R/ `8 |) H6 E, j
i; [" q, W f8 _, mend
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to do-trust
. @8 V- g" N! A3 Aset trust-ok False
+ }4 a8 e) A$ g+ a0 F( L8 r
8 [( M+ Q$ v: k3 V- g9 \5 Z; O
" _7 m* [( _7 }/ d9 |/ M4 {5 flet max-trade-times 0
. s s/ o4 `+ g* L: Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) e0 R& p$ B. C" Z
let max-trade-money 0- o& v- x9 q; T0 S0 E
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: j _! a! `% e/ O# t4 hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- U7 X3 e; j' [$ L8 \0 s) V
# m8 W% C" b [/ a/ |4 r9 X( W% O0 ^4 E- p, V6 G1 C, E, T
get-global-proportion6 J- V6 }1 h, l1 ], m+ U5 S
let trust-value) Z4 f7 U; u" y. \. r4 v
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)
! G$ `' n! z8 Iif(trust-value > trade-trust-value) P8 C& S6 D* L4 l' U
[set trust-ok true]" D+ Y' K5 T B, U
end
- Q0 q1 [6 X* w7 w5 h' B2 T
& ^5 F" C* F8 Ato get-global-proportion7 s# s* d, k9 e
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, p; D- G1 C/ K1 ?[set global-proportion 0]
3 t1 N- s/ W+ P$ ^, d' U[let i 05 `! A* o/ f" L
let sum-money 0
- g% D+ y, V# r9 x: [( mwhile[ i < people]& v- ]3 s+ b5 D$ |$ h! ~ K9 F5 P
[+ H, H; Y6 N" v0 U D
if( length (item i2 A" z2 `: v0 }$ n! Q2 M" w- u
[trade-record-all] of customer) > 3 ), Y1 M+ j) }% b. Z2 u3 a
[
! s5 u' L. t5 r- l0 {& qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))' Q/ Z+ m; E# Y: d8 m7 J
]' A( q; w3 K# j8 v1 q8 Y8 [* I
]0 H' Z2 A$ K5 o6 i3 v5 @
let j 0
7 a. i* H+ U1 F4 }let note 0- J3 s! o( D* r: Y/ X
while[ j < people]
3 v& t$ ^4 {5 Y[
) K0 ]5 B6 w$ w4 V9 q; O. x/ k' iif( length (item i
* E6 {( Y/ y6 F/ G- e# w' }2 ^; N[trade-record-all] of customer) > 3 )
5 h9 B% W \, {! I[
7 E4 n" P: b/ j) y8 [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
' ^+ B. x7 B# P1 c[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- m% \2 ]) p6 G
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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9 R3 K5 y- b% e, c, P]
9 n- `* |9 ?) r _& F* [# Cset global-proportion note
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7 t. b" x Q( o' [& L8 |end* r: `: u4 X* u
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to do-trade. y7 S9 Y9 N3 `6 {8 O
;;这个过程实际上是给双方作出评价的过程8 p* g" L! y! Z+ ^; T X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 _, ?3 Z7 g* w m% A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 a# ?7 K F% g% T6 {
set trade-record-current lput(timer) trade-record-current( ?5 B) E) h& S- K7 h5 }1 _
;;评价时间1 p; \& ^4 V0 N# {; @
ask myself [2 T8 U6 ^9 G9 n8 w4 h* y4 r
update-local-reputation
5 m! ?3 N0 ]% x g9 _set 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
# y! U! C6 F7 e/ w2 W7 [. m' S# a;;将此次交易的记录加入到trade-record-one中
& u1 t7 K1 d3 [( S" cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) W& D# n2 f R h1 T
let note (item 2 trade-record-current )
' i) [& H7 C" Cset trade-record-current
1 P& |5 q" N( D; {: k(replace-item 2 trade-record-current (item 3 trade-record-current))
9 u0 h/ O5 O }6 v6 D: m2 { Qset trade-record-current$ r$ Z" G, n- l' S V5 Y
(replace-item 3 trade-record-current note)) m6 L" w T# h/ v+ r
2 g7 p1 K& B" q( o
! V# N, P# b7 _
ask customer [
" {( E5 b2 v8 V& T0 @& |update-local-reputation
# u% R/ l% X( _. l. H- rset trade-record-current4 [# j4 ?5 y3 e& n g
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 [+ z$ d; a- E/ ]) ^2 M4 J3 ~]0 J3 U7 `' Y9 Q9 P9 {
$ }( [7 H% `" [) z
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ P. |1 S/ w/ @
& u2 n! G2 F# O/ y4 Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! q% P/ L, K( i) n2 M1 v# h;;将此次交易的记录加入到customer的trade-record-all中- ]1 g; Y& w. e: F5 F& W
end0 H1 {, |3 g+ H3 y% V
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to update-local-reputation) w( t2 r0 X& p4 O$ V: x
set [trade-record-one-len] of myself length [trade-record-one] of myself
. X: _& t8 \$ H4 j- m% U) a" J% g1 s$ `8 }( z) W) _
7 D3 [4 B, j w* K
;;if [trade-record-one-len] of myself > 3 ! _' s, O( M. i' v' b. r5 g( P
update-neighbor-total
0 z: y& Y7 B/ E. N9 v" O2 N: e% y;;更新邻居节点的数目,在此进行
, F7 q5 w. Y0 nlet i 3
; r; _ z$ n+ ?$ V! ?let sum-time 0- e2 [* ^5 L7 L/ N4 V' n/ j
while[i < [trade-record-one-len] of myself]( L7 ~# n5 C2 b/ n$ u3 b _; y& l
[1 x# p! F( P) ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ F$ @( L w6 Z ]+ Wset i
2 S& d% J6 D9 F; ]( c" t" z( i + 1)
# J# E4 e6 E/ k2 y& p]
0 X, q" b) _+ X4 P' `6 d+ P# qlet j 3 [+ ^( v! z% B) u9 H6 i
let sum-money 0- M. Z7 ?3 o* O7 S: F7 _' I. \ x
while[j < [trade-record-one-len] of myself]
+ v9 ~' y j, ^4 B+ h% I[
7 I& T3 J+ t! f2 Q1 Nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
, p7 T5 m, j, Fset j2 T. i0 j) }% J* v7 p
( j + 1)+ c1 h# w5 r% m
]
1 L* M; }; R& O% jlet k 30 w% M6 Y+ q; V
let power 0
2 ^! D" [! w1 y% q. h8 T9 ^let local 0( n3 }5 y: a1 j& v2 Y# w: `
while [k <[trade-record-one-len] of myself]+ U3 s# C' ]( S3 |
[/ V! B$ k: r- I. I
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) % l) _* M4 u$ u9 u2 i- o
set k (k + 1)9 d; R% t9 E2 b$ S; x
]" @" N6 B8 |0 A3 |) y
set [local-reputation] of myself (local)" k) l+ i7 V6 T2 f: a
end$ Y3 c% `6 k+ D; [" o& r2 v' ]& S2 `! X
8 L, s: o% n, o. c# X d. rto update-neighbor-total$ x0 C P/ | r
8 @6 R- R3 P2 }8 p: }8 vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 l' F }5 ^" H/ F# |
4 q3 V5 z2 @' r
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end
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1 }/ T: \" ], M4 v( a+ V9 s3 Lto update-credibility-ijl
4 i' S, ]* I2 D' G- } d) B, u" M7 A9 C y. P) D
;;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。: a4 I7 h; ^4 O
let l 0
4 T- }4 {, _& z/ k- ] rwhile[ l < people ]) U* I, X* @' ~3 J( l
;;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
! U0 ~2 j' m, A# k6 i: \[
: Y9 t+ A3 @$ T8 d% D, d3 Qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 K$ z0 G, l$ W( \if (trade-record-one-j-l-len > 3)
9 D* X% P9 w- h! g[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' \ {$ W: y5 s
let i 3
8 w) h: c. @& Y( N% T2 O# qlet sum-time 0
; ]0 L: O9 v; q+ M7 t' awhile[i < trade-record-one-len]
3 f) e$ O0 R' H3 Q) O[- R8 P2 ^! I0 J( D# e; W
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! A4 Y6 J0 d; j+ H% d4 A6 P
set i+ O8 S4 \6 b- G- ^ m
( i + 1)3 ^6 p: J$ |$ P* h5 t
]
* M$ \ ^4 Y. tlet credibility-i-j-l 04 w% Q/ K* f8 \- |
;;i评价(j对jl的评价)
, |6 Z' [2 ^8 l* J( M- Tlet j 3
% X! y3 [4 A& A$ t8 u8 olet k 4
9 R6 r5 K3 i! ?. h" c6 | r5 Wwhile[j < trade-record-one-len]1 c, J! @! h# s. ?2 [
[
6 o9 F: g' o5 t3 S! K6 \7 p; s; Cwhile [((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
; j, x& x5 U6 O9 F! G3 M- Aset 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)
n+ p: R. `& p/ V! mset j W, M D5 g- m$ d
( j + 1)
$ Z4 a. R1 `2 W# i- n, G* G]1 M q5 ^) @& r7 [% _* |
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 ))- e! ?9 S r, h2 g( d
+ O4 N) K) J3 A S
& ], a. M6 Z1 Y/ J8 ]/ qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 }, x V) E& l- c;;及时更新i对l的评价质量的评价! h9 s, Z2 ~- z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" }7 e9 e. e0 d8 x) Dset l (l + 1)5 A5 u5 M; |! u+ \ {
]
5 }, }- m* @ b# nend' i% {" h& C1 M7 q
4 \8 x$ V" C3 ]% F) Wto update-credibility-list
+ P& b1 z! h0 p8 b0 a6 c( d: Plet i 0
" a6 t7 B& T) e! ~4 k) m& Bwhile[i < people]
6 `5 U: g1 }, U+ ~: q3 @[
$ y. q% v6 p) E8 zlet j 0
" n8 S/ C" }* q8 P2 z* ]/ ilet note 0
8 B8 [. F& C8 Blet k 03 l3 w, u* B. b, I# r+ ^
;;计作出过评价的邻居节点的数目
' f$ U: z# }- B( Y3 N' z5 j! jwhile[j < people]
+ H' Q9 w+ R& {) D0 o; X7 Q[
2 l) G- J. v0 _" _ yif (item j( [credibility] of turtle (i + 1)) != -1)
( `' M7 d+ H% Q$ C;;判断是否给本turtle的评价质量做出过评价的节点9 ^8 ?3 d6 l d m4 ~
[set note (note + item j ([credibility]of turtle (i + 1)))+ |3 |* @% h7 \% m) k3 ~- G
;;*(exp (-(people - 2)))/(people - 2))]
' C1 Q, e. | [& V( [- Lset k (k + 1) V% [2 c8 J5 e, d
]* q \ ]+ t) l# u
set j (j + 1)% H/ u9 Y( g5 ~3 Z3 T+ k
]/ W) E9 M, C0 P# O( f
set note (note *(exp (- (1 / k)))/ k)* }( N. V: m( t
set credibility-list (replace-item i credibility-list note)
! H$ {. F5 R* r; Q$ Eset i (i + 1)% W$ Y- ]( F4 R8 D" P
]
& D& E, ?4 z, fend" a4 I. |( K9 |2 I3 Q" q1 M
2 b# V/ z8 B; K4 B% V2 P7 x; Yto update-global-reputation-list: ^: \$ Y% Y1 _- S O
let j 0/ I3 V: j+ I- w
while[j < people]5 [( Q1 T& `1 C# ^
[ G W' x5 _" F. E
let new 05 f; b9 E+ A0 k" R
;;暂存新的一个全局声誉
) f7 a" J ?$ L9 |let i 0
& t5 u, Z, z3 n! t' ?. a2 }let sum-money 0. K4 A) D g$ z* v5 U
let credibility-money 0
3 B9 M- o: C: U! Iwhile [i < people]9 n5 j# P' A& E4 c3 P ]* R
[
- d2 P3 n3 r! vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! n# W+ ~, }0 e, ?9 z8 E. Hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 t/ J; V; q4 r! y* gset i (i + 1)# f' x$ D7 I$ o. `8 a; M+ A
]
0 z% F9 n; a: \let k 0
% ~$ l$ i+ V$ P) S2 X4 Z: f1 qlet new1 0
4 ?' ?5 s" |3 e4 v \8 K( Qwhile [k < people]& f. J! J/ R+ L& C, q
[
]$ s8 {" _! p! Y. cset 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)+ }1 Z* h: f1 B m/ z4 Z3 ?/ J
set k (k + 1)
' y3 E7 E$ n5 H" `$ o]- i; F9 k) K" e; Y9 o& v1 d. @0 y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ ~* `+ M( z. y5 f. S4 X
set global-reputation-list (replace-item j global-reputation-list new)
$ T5 y5 c8 t& }/ j& uset j (j + 1)# t) n+ {1 a/ C5 W! z8 W, M
]6 A8 F7 O; H3 ?; s: c
end
# h1 i# w: ^) r9 ] c4 Y
$ H2 K5 G' I# |' c( D' z' e' O7 N$ D7 W& B
: p0 U( D, m, T) h, s, W% G
to get-color
2 _' k! l/ [# F( k. R
7 ~0 }4 F7 b0 H6 T" \- Z( bset color blue r9 w2 h' q( z% m+ d3 R' f, f
end3 S: r$ j8 a+ t' Z6 v
# q0 @) e) l$ }
to poll-class
1 n/ {5 ?0 C' S/ Cend
9 R1 \* r1 g3 ? C- K. D2 S! t [! h3 }: r! h
to setup-plot1
* _5 Q7 v' j- d7 x: B! x; v( o) s
% s4 W9 H c8 F) _, z# ]set-current-plot "Trends-of-Local-reputation"
+ x) r# @8 Z- w8 M8 a5 Q" y$ b; R" }2 Z$ d
set-plot-x-range 0 xmax* I# r8 Y8 \! R1 Q K. N$ Z6 F
o5 ~# \$ o# T; V, `7 O3 wset-plot-y-range 0.0 ymax1 B: R' c) G4 X
end
* a/ l' K" m) J) [9 b ~4 j% C; I U6 D8 z, v" v
to setup-plot2
: h7 h# \! g- @3 f: C6 B2 r2 }- w* R5 A4 j3 @2 |" H
set-current-plot "Trends-of-global-reputation", h3 H+ @7 _4 r5 w7 v
; j% D/ [( q2 P. Y+ tset-plot-x-range 0 xmax4 H3 S' O# o8 r+ k5 E
0 c4 C5 ?& c& o5 h) I0 D6 ^2 \. z
set-plot-y-range 0.0 ymax
' e( ^3 \9 [( ~end9 i; M8 X+ r0 {2 D4 T% q
3 g- n6 K- Q, \8 {6 }' @: D
to setup-plot3
% z* h# l5 {% H- V
. w7 b5 K' B, i/ ^' W) o6 x* s2 sset-current-plot "Trends-of-credibility"
4 u2 k, W5 f- I5 p8 J! I- F9 k7 e# d
set-plot-x-range 0 xmax% o% h2 u+ r) q( X; C
5 h4 O! z" n7 h. B% k0 P/ k J
set-plot-y-range 0.0 ymax
" ^! V4 M/ g/ O( Bend1 _$ T6 R% s8 @& S* W
" U: h6 T' R; o5 i/ @# r# H
to do-plots
/ ^7 y) n# v8 E; Q! l) |/ f* yset-current-plot "Trends-of-Local-reputation"8 y* a1 X& o; }* ^# P
set-current-plot-pen "Honest service"
1 x" ^0 {+ [ H& qend
: s! I$ M5 o, q0 H- O) S7 ~9 J. B- e3 A, D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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