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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9 P. V" Y. c% J
globals[
4 ^9 O# h) n q* l# T' h# r/ Y2 mxmax9 [$ h* K: v9 V9 a
ymax
; f" t2 r" j' N5 sglobal-reputation-list& E8 G+ C# p4 U9 ~" X& a4 x
7 Y( q1 ]8 q- R6 Q0 i& t& E9 y
;;每一个turtle的全局声誉都存在此LIST中: ~0 d/ r0 g1 P5 u) x/ m7 q. x
credibility-list
+ g/ m; t. _4 g: X' c& \0 ~2 };;每一个turtle的评价可信度0 ]+ P. \: A- ]0 L* ?! Z
honest-service
4 y; _' v9 r/ F: H. Eunhonest-service+ ~* d' z. {% \1 g+ _, X9 R
oscillation
$ k9 \% X/ J5 h% ]& x! S7 \rand-dynamic
. K9 I! `% S/ T+ d" i: []
+ H& b* c: f% J7 @/ l0 r+ Q: W ?
. F U% n! O0 Y H, O- @turtles-own[; S4 R4 q: D* A6 H- d S
trade-record-all: s: Z' J8 A" [
;;a list of lists,由trade-record-one组成
0 r; M. k1 _; o2 W: m& Utrade-record-one! H- |6 t" _8 h1 ?$ ~5 x, Q
;;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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;;[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]]. \* v3 w' Q/ n; |$ u! O% T, 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]: N' ~! ~9 r& {4 K3 o
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
2 b& o; i6 V' k' D8 Jneighbor-total+ m- C M# h6 {0 g
;;记录该turtle的邻居节点的数目( J' E) s9 B5 P& j, u4 _& J5 J+ p
trade-time& K+ f( M' g5 [0 Y- g
;;当前发生交易的turtle的交易时间7 L: `, x. ^6 ~" S0 Y4 e
appraise-give* h) V- |+ B( q9 T- ]7 F; ^
;;当前发生交易时给出的评价. n( o1 g$ Y1 F7 O; k) \8 `0 P
appraise-receive- o8 q+ Q( _* R
;;当前发生交易时收到的评价
\7 ^& M% o) c8 N+ _' i) Bappraise-time
% d R8 q8 C _- k; P6 };;当前发生交易时的评价时间. y# V. w7 \/ n
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( h8 ~* c( _1 T% N* c, ?
trade-times-total
9 p' }2 L" w2 |9 };;与当前turtle的交易总次数; M/ Q m. d$ K9 g0 u5 T+ ^ _
trade-money-total
) ^5 d7 j# U! _: Z;;与当前turtle的交易总金额# ^) k/ ]) h: S4 P
local-reputation
4 V6 U3 J) Q7 V5 w0 Yglobal-reputation
* M6 P/ E4 H" s6 e& hcredibility3 f; J) o9 V& z4 x/ i) h! |
;;评价可信度,每次交易后都需要更新
1 p$ L `# j6 mcredibility-all
/ o* l6 b. Y! P/ r5 f9 @;;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
- T K3 d# z$ R
: z# ]# [; v# j' G; L1 w7 f! X;;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
6 I# L* ?: I1 L; Pcredibility-one
( M0 }. d3 n4 H0 j: F* 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; _8 b J( u- H' f0 q( W+ `
global-proportion* o! u# U6 B9 s/ V; K& b
customer) Y( T4 o, A" X' m2 U) d
customer-no
$ O( r l5 b: R' g' ]4 U) Ztrust-ok# i+ ^' K6 _& R. o# h/ ^. y
trade-record-one-len;;trade-record-one的长度
7 c; s2 g3 l. F- s]! c" E7 e: ]3 q8 E5 p; g7 l
% f/ _+ w# H5 r4 I" ?1 Q
;;setup procedure
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, P- ^8 J+ c7 Z$ Yto setup: N+ @/ h( Q" d9 R, B3 g" u
0 P8 n# f9 f+ n1 E. ^( wca
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initialize-settings I2 x$ F4 S6 I- F% @+ S0 u
. p1 P3 N6 ^" s% kcrt people [setup-turtles]
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reset-timer
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) z7 e( O' P/ c. X7 }poll-class
; D1 v: z2 i& W6 a: _" @9 x- B: ^
setup-plots
5 [" V2 ]5 ~; ^ q" }, x0 m1 r) Y n3 V
do-plots
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! J) H; r4 y4 F+ y) d I. nto initialize-settings
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& y) O( _; i0 @* D2 L& Yset global-reputation-list []- f0 k0 |) @+ h
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set credibility-list n-values people [0.5]3 r1 q( D5 k4 \2 T7 H0 |
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set honest-service 0# z% i) C/ P/ g- M: E, z
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set unhonest-service 0) n+ w( ?, e4 d
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set oscillation 0
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1 o0 L/ {7 D8 ]2 w1 eset rand-dynamic 03 `* i8 x. {( o- z0 C+ U4 Y
end
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( C4 [( `6 Z; t7 h0 J* qto setup-turtles ' ^& T9 |2 K- ~/ ? T1 D3 w
set shape "person") T; Z, y. {4 m3 o* z) }. f
setxy random-xcor random-ycor/ W$ X- {1 u& `
set trade-record-one [] k3 { e' @4 I! H$ R7 S
9 A" _5 z& Y1 V+ d1 k7 w, u
set trade-record-all n-values people [(list (? + 1) 0 0)] & X* u, z B @
* ?: M! @- a1 E* D# M# bset trade-record-current []
4 Z: d1 }' i" ?8 ?4 ]6 F3 {$ Lset credibility-receive [] u/ L( A& H* M, I) Z2 W
set local-reputation 0.5$ R0 Z8 ~' r& D
set neighbor-total 0
" G7 X' x: w1 }. Z% xset trade-times-total 0
6 z- X$ _' S: s+ J# Cset trade-money-total 09 X2 \, v3 F, h, C
set customer nobody
; K5 m- A. A& F7 [* G8 Tset credibility-all n-values people [creat-credibility]
4 A, @! a. _3 t0 eset credibility n-values people [-1]
4 b, K' }( U4 H, Wget-color
. G4 ?$ w$ u, `2 o: L) ]
i: j1 J J: s2 K. m, E5 cend
4 x. D' @9 j7 r4 X8 j0 M: ]
+ T: }( P- U- xto-report creat-credibility# F: F9 G" P/ I- \" ?3 [
report n-values people [0.5]
9 F' B( h7 |- J+ ^3 T1 ~' H/ h7 pend
8 [9 L2 w9 [. _5 b V- U* I/ v% b) S2 O9 N; A- H Z
to setup-plots& b' s5 n! p, P: ? @: `# o& Q
3 }8 c- @0 {" K0 c' L0 j( j# s" z& lset xmax 30) r6 [0 d( y+ [$ e
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set ymax 1.06 q \0 A o% E: t9 K5 l& s4 a
0 G: t. S q5 \& _
clear-all-plots3 V* ]9 `1 d" o- C6 {# \
v: Z6 X- [3 T& Y% [/ gsetup-plot1
3 D3 ~) ]7 y' u% E
/ g4 ]3 w( y* Psetup-plot2# J, f1 A6 U, s3 [; d) v+ p
, I: J/ Q. O: y) w8 G. Gsetup-plot3
$ {. y! D+ _; V8 I+ X; q( Hend
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9 ]8 A8 L9 q4 Z; H! [;;run time procedures U3 W- B4 r p4 X
* d/ U' W1 c" x2 Hto go$ M, i Y. K' f, A9 C9 Y
6 ?6 o2 \5 @: l: C1 p5 D' Rask turtles [do-business]
+ B0 z7 s, K- ]. x- F) H( f8 {% q" }* iend
) }6 L+ g1 @* y# |) b. u* Z$ g, f' C9 d9 d. ^; ~0 k0 O8 i
to do-business
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5 q! ~+ S! X3 s+ A8 K' lrt random 360
w- y; s& b' _1 Y
+ @6 a5 L9 `4 D# W) d+ X2 bfd 1* T1 T" j, h3 l5 g$ O [
7 {( c3 E2 D, U# K: {ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here5 d; `0 u/ k5 ~8 w K
% p9 u- R* \' ^7 Y
;; set [customer] of customer myself
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2 a# L; C! O6 G! eset [trade-record-one] of self item (([who] of customer) - 1)- o& N- J! e0 _; H0 t/ o) O; U0 t
[trade-record-all]of self6 U6 z5 ]9 `, v0 {
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- n, [; F$ ^) P# H- Q% I8 ^, ~ I
5 y0 h: n+ R, M4 C; C# jset [trade-record-one] of customer item (([who] of self) - 1)
+ N+ P6 `. r3 S[trade-record-all]of customer
) Q7 T& c2 M! |. m- F# O- M4 `+ a m# @; U0 O
set [trade-record-one-len] of self length [trade-record-one] of self0 Y5 E8 ^& F* [& a: L
( Q$ D( R( M* |
set trade-record-current( list (timer) (random money-upper-limit))
# U" z, q: Z3 S# A4 C, g6 q8 o5 P0 ]2 l) s
ask self [do-trust]. c4 \- n7 k% L# v1 x$ q- H
;;先求i对j的信任度
# j9 @/ R8 K/ l" z
6 H8 \1 Z9 Q. L) d3 |/ k. Uif ([trust-ok] of self)1 s/ {1 x+ ` X! E- w+ j- D3 A+ }5 ]" [
;;根据i对j的信任度来决定是否与j进行交易[2 ~) ]) r$ ~: u/ {
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% ]) Q5 V# G" G" D; J9 G6 V" F
9 d( X0 i+ z1 v4 J. H% w' n[
2 d- V, x$ T! Y; J; c7 |9 l( x; Y) u$ S/ S
do-trade
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update-credibility-ijl- m8 J/ C) O, A6 b/ V8 L# `
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update-credibility-list
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; ~: K6 z2 ]8 L# t2 k" x# Eupdate-global-reputation-list
4 B+ n+ r( s2 w
- E$ l; P8 h/ ]# spoll-class3 D% d% M1 a9 m1 D+ u% I
1 M- f( k& j7 U" X# W1 x$ S
get-color6 x; g& _, o- f2 h
7 O: K$ x# ~) K! O! k
]]
5 j# S1 F9 L4 v' l8 U4 U/ d. R! \ S& T7 e1 U# L5 x: r3 k% \! c
;;如果所得的信任度满足条件,则进行交易
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+ x J5 c0 ^( T# Y[
j; f% B, n$ R' w4 t1 } P e G7 V! F: W% z/ d" Y6 W2 {% A+ q
rt random 360
: R+ \+ V( _# U( a% U X" W$ F! h8 h1 c# l( k$ i3 f
fd 1. q+ \" g. C" d6 U# l( f: S8 N
# V& P% D% c# q
]2 S, x: x: ?/ r2 z/ ~
h+ J) q! {7 T4 `; @( O
end) V% W3 h1 z! C* h0 U
- n# D8 H. S8 C$ ], k2 b5 hto do-trust
- t$ `' L" d* ~2 n( r# {set trust-ok False
2 o! ~% [ N( Z9 L9 T5 G+ I, g
# ?- c5 t# [5 Y9 X+ r6 X/ E3 e6 k
) q# v9 Q; S; E; Klet max-trade-times 0! U* [2 A" R2 a, K" v' W9 k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- h+ I7 ]7 n: ^2 K' z3 S1 E
let max-trade-money 0( s0 x3 ^. Y. ?2 k. f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. Z w j' e3 @. k( t6 `, b! f a
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* W( @( |* L( ^9 C1 c
( r3 Y0 o1 p' i3 K% ~- W5 _! K f' W) [. |% D# r. s9 } O
get-global-proportion- |& m' @; r$ k& W
let trust-value
1 G+ Q. p$ R7 k, 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 ]& K* ^+ |) }0 L4 F& Zif(trust-value > trade-trust-value)
0 H( y: \) D3 G: ][set trust-ok true]9 p( }9 N1 T; _' q
end
1 _; F! P% J$ H
* K1 {8 Y, P1 F( U$ zto get-global-proportion' m& N Z3 @8 |" r8 R: D4 b
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 Q! j4 t% d8 N5 P7 z! G
[set global-proportion 0]
M" ^9 `9 g8 ?/ W2 c[let i 0
% t; q: f n* z8 k5 q8 F' ~3 \let sum-money 0
7 o4 F* Y6 P1 Lwhile[ i < people]( M. p% |0 \# E8 @7 d$ z$ b
[
5 x! ~0 r5 C; Tif( length (item i
) V1 V9 G( o4 e J[trade-record-all] of customer) > 3 )
2 r( `; Q! @7 ~[: U2 o2 I8 C# B& [9 ~
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)): |2 e/ j6 ?7 @' e; ^$ H0 E1 p ~
]
" w) E4 [! R: [7 E d]3 ~8 ^' w0 `! }3 \' d1 B3 h$ b8 F
let j 0) z C7 f+ I0 n
let note 0
& T! S! c, i2 M. P5 W3 ^7 \5 Jwhile[ j < people]# ^6 _4 _7 m0 V! {3 v% i' A* b
[; d8 T; Y c# _2 k2 S$ t0 z
if( length (item i
$ a' q& H% L d2 s[trade-record-all] of customer) > 3 )
+ y- M# ^3 \8 U+ ~[
! D+ b4 [! R9 Nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 p+ F% ^6 A! c. V% ~0 i: P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% ^0 z3 S( P" ^) ~2 y {+ b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 ]6 w" B X6 x. ~/ F$ ?( u3 s
]
$ U& O# Q8 ?) Q4 E]- h Q! H) I8 w: K1 r% n2 k
set global-proportion note
[- }9 p; ~0 p* v]
% \9 v* N, E4 pend
w; b7 S, @; Z. T4 `3 ~* i3 J5 C
8 {* z1 Y7 r; q! ~( Ito do-trade
/ V) x; @9 ~ j" t: L9 d# a. Y;;这个过程实际上是给双方作出评价的过程
, V. c; T. M. I$ ] A4 a" [set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
" |- ~* _; Y% |2 Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 ]$ A4 N7 Y5 I1 k) x/ ?( L) @
set trade-record-current lput(timer) trade-record-current# U7 P4 M4 D% O
;;评价时间
. O2 ^, `/ {" c/ nask myself [
. H! z/ r& U7 W2 h+ C# g V$ wupdate-local-reputation
6 p" Y, S7 @0 H. G' fset trade-record-current lput([local-reputation] of myself) trade-record-current
, V0 n* }( j" X. k5 n]# u; G9 f. x0 |4 K4 J" U
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! h) m+ Y% Q D/ t" q3 G; [ w;;将此次交易的记录加入到trade-record-one中
3 z# m. L1 g7 F8 q$ t& a" bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ r. q4 e. w+ \
let note (item 2 trade-record-current ); V4 e& I: S* G! L ~# g
set trade-record-current Y9 y# Y7 P& u
(replace-item 2 trade-record-current (item 3 trade-record-current))6 }, Z% i( H% {. [+ T/ S
set trade-record-current( }6 X1 L# F) \! Y7 e- X
(replace-item 3 trade-record-current note)" k2 e, V0 M% I& R
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7 h! M' V! h/ L$ ~" W5 g0 f* yask customer [1 i. I' |' G; H2 p
update-local-reputation2 a9 U3 Q3 Y& [/ O2 ?% M7 Y0 B8 [
set trade-record-current
1 G, K$ T" U8 D* ~7 y. x' f6 Q g(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% m/ Z$ q% I2 K) P
. N" u: [% x9 R- z5 I$ U% @set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 Z( m9 r u) `# L. g;;将此次交易的记录加入到customer的trade-record-all中% p, ?: H3 e z5 o' x+ {" J/ q* S
end
T# t6 \5 [4 r* Y8 y0 X1 M
4 a* Z& P+ [- i2 Xto update-local-reputation9 H) @& _7 H# e0 N* I4 @
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 F4 K9 L U" x$ h! c, _ }1 I2 n8 d# l0 z1 e
% Q" A( R0 i3 O- ~- C* D8 K;;if [trade-record-one-len] of myself > 3 + F( N' b2 [; L* x1 ?7 ^
update-neighbor-total/ _9 c0 Z! e8 r; u
;;更新邻居节点的数目,在此进行3 I( i8 S' q& F0 n- U/ ~" M) U
let i 3' c" b" ^3 I: G' l) M4 ^/ x c" r( R
let sum-time 03 @/ W( F$ G; Q' S6 e* }
while[i < [trade-record-one-len] of myself]
4 [0 f$ w4 b7 T[, S H: x" H3 M* j9 \7 ]- R* k
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# t) B$ d& @8 S- cset i
5 _* c k$ g4 d) m* _) A( i + 1)& A8 T5 L4 p* C' I, R& S- e8 z' D
]
8 u& f: O0 S+ m: f* Y& Rlet j 3
1 j7 Q( }0 q7 B* Wlet sum-money 0. x. a9 H# X# {. h
while[j < [trade-record-one-len] of myself]6 }- j9 ?; E6 }) s4 S
[2 x' P, T% U' _! e$ U7 Z4 u- y$ D
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)
- l: i9 m: W. W" S) r( lset j
: ]- l9 P& E! V+ v$ g/ {/ R- g( j + 1)
2 \ z6 c; C. Z( ]2 k]
3 }- w) H# ~% @# K# ?let k 3
0 R' T, p8 b( u; P: P6 @9 I3 glet power 0
* n' A7 X9 \1 v! Dlet local 0
1 \0 N6 z) y }# B2 gwhile [k <[trade-record-one-len] of myself]
% Q- Y3 l1 Q- g. B N[, t" h4 B) \/ m0 [1 y
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)
) @) \9 @: T8 N% K0 Y1 Cset k (k + 1)
% Q& ~4 T$ \- ~7 o]. p8 R2 `) E: h
set [local-reputation] of myself (local)
6 f' {& D! X, i( X9 ~# [' Gend
: [8 f/ D- J/ g' p. [$ T# ^0 a/ F
! x H: F B7 w2 cto update-neighbor-total7 J! l8 Z/ q* `- S& q
* L3 }- @9 ~4 H" T N: C; V- ?if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& `7 T1 h3 j' W* c: e; J
h! b ?4 [4 ~- h
9 E! G$ V$ b% p* b' qend+ T; O, S+ J. ^4 N7 l
5 [& p, v2 e- v& A) P
to update-credibility-ijl 7 l4 N: v. R. W. M5 @! q
) z: P; A! A' T;;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。
/ c; p+ e: t7 C0 V0 O2 y& hlet l 0
$ @+ N6 R0 Q+ u9 iwhile[ l < people ]
+ i% G8 g7 ?, O3 r9 ]' ?;;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+ E7 v3 g) D0 I4 d! s# |
[7 P, d, Q( r% g3 Z- e' ]
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ M5 [ e7 G) J. Hif (trade-record-one-j-l-len > 3)
, _$ I3 e" C' q& B) Z% |; H[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-one2 L! g8 \( ~! t$ T: O7 D' H
let i 3
/ @0 ?' T1 q6 a% h4 flet sum-time 0
; ]! R: X/ \2 D, k: Cwhile[i < trade-record-one-len]
) @' [% T8 P3 I+ {$ B4 J[1 p" ~ ]0 N, q. K4 f6 Q9 T
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 @6 b7 h8 w7 y" u& k+ Hset i
5 e+ p( c9 K6 o( i + 1)1 m2 e6 d. w8 B$ A& F. I, W$ g
]- Y5 y0 `0 _* e
let credibility-i-j-l 0
& ~ W+ l" o, i;;i评价(j对jl的评价)& Y# w% z& h$ H! c$ |% O
let j 3
# x+ e* O; S# Z6 v. F; w/ l' Olet k 4$ T# C% H" e; I/ \8 {+ E
while[j < trade-record-one-len]0 {+ g3 X ^4 a! n
[
% l" Q0 O( z$ iwhile [((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 ]/ Y* n' Y1 }& A7 Lset 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)
' o4 Q( y; j# T4 J4 z9 Eset j2 r8 b7 H7 O; l( D. }5 T
( j + 1)1 b) q1 V, o- g, ]( m/ B9 N
]0 D* u9 h& a7 w7 } ~9 z
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 ))
5 J& S( z. [: j) R) L0 T% H/ @: D5 O. |5 [
: E+ Q1 M2 w4 R1 X3 X$ U7 c' t
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' g1 Z4 K& r- T6 m% s- m. {
;;及时更新i对l的评价质量的评价9 `1 X/ _. t# B/ r0 Y3 S
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 u$ ^4 {8 T2 r) f$ y4 ]
set l (l + 1)
i" B6 R! }2 y4 {]
; b, i# X! i' r; Dend
9 Y# Q/ o( p9 [ }' t" ~/ q/ x+ v9 z I- w) T' H! x0 l
to update-credibility-list& L3 Z. x+ P# N2 K3 W
let i 06 [3 X! G# r; R" |( h4 k# ^8 |
while[i < people]8 z W2 O b7 a z/ e& U Y6 y
[3 ~& ~0 T) P0 U
let j 0
5 _0 d4 R# P+ r( plet note 0+ \3 C# S0 t; [" R* F. h
let k 0
1 A% ^ b& W6 N n1 |) i;;计作出过评价的邻居节点的数目
/ Y8 w' W! Q% i. [! u6 ?while[j < people]: j4 V+ ?/ y, v+ q0 N; t
[
9 V% `: c! k" W# s3 y) r3 [" [if (item j( [credibility] of turtle (i + 1)) != -1)/ u8 h# U/ G2 A3 ^) J
;;判断是否给本turtle的评价质量做出过评价的节点" d5 v$ a, m# b: U
[set note (note + item j ([credibility]of turtle (i + 1)))
8 R8 C/ G4 g3 C7 O$ U8 x;;*(exp (-(people - 2)))/(people - 2))]* U! p; W$ [- { j/ q! C; V3 z
set k (k + 1)
1 s4 ` n) ?' T* Q) s]+ \9 h) }7 A* a2 Q/ p& ]2 L
set j (j + 1)
5 W4 l1 T+ \1 Q' R( K: c# H]% v$ Q- ]; H1 Q9 K- e
set note (note *(exp (- (1 / k)))/ k)8 U4 l( ?0 d) R8 z7 m( l5 b+ [
set credibility-list (replace-item i credibility-list note) F( z* ^/ V) Q
set i (i + 1)
2 I$ [$ e/ Y- ~* U]6 ^7 f8 h' N/ a3 Z8 D& x
end# ^7 D9 T) b% A5 `# O
) |- y, b8 H7 t2 _
to update-global-reputation-list& f, @7 @% B( V. ~
let j 0$ N/ m/ G0 d- M: G n. M
while[j < people]; K& D I4 J4 o4 L& R
[
# `6 F2 b0 E1 l F; l+ glet new 01 H V/ L: m4 A/ h; S8 C8 `4 `% z
;;暂存新的一个全局声誉
5 C8 }, Q( J) b6 s- z) w4 y& Nlet i 0
7 Z& i' ], N* e- W. n3 E; P3 `: clet sum-money 0
/ }3 i0 l+ S. D n5 Flet credibility-money 0- y1 x3 q. p4 Q I; D) ^
while [i < people]
; G, M9 ?" x* H0 A" I0 m) v" g3 G( L[
: J2 A6 O- T! g! u6 Bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), B( a( ^( @1 f# S p8 [% |
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' a, N) Q' z3 ^7 o
set i (i + 1)
7 u0 s4 s% Y) n7 `7 H]
# }! {. `5 l. n0 _0 q" ylet k 0
- L. }8 r% r: s0 l) f) ~+ n2 A, X4 Dlet new1 0
$ O5 {9 W8 O* a1 F' h/ U( Twhile [k < people]
& A: u9 q, {; U8 a" O3 n[
6 Z/ m; ^; ~5 O% A+ w, N2 eset 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)
' B" O2 V7 d/ z: Z1 ]/ J, {0 qset k (k + 1)+ [" E# C! J, d1 p5 V% b
]& m3 E6 a& [5 x! e2 C
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , g2 x8 A/ A: z+ g0 L6 Y
set global-reputation-list (replace-item j global-reputation-list new)! F# b( p. U3 {0 Q4 |4 _
set j (j + 1)
* H7 P$ R$ g0 |0 A" |9 n5 t]
' @. {8 R" }2 Q) \, l/ P5 z* lend0 C5 b) O. ~) H- E3 l
! y# g' S# S" `" @7 t% e3 X4 E3 C3 r
( H' f/ S3 T2 Q
to get-color
# D1 A8 `8 _! O( M/ J
, Z" M0 u/ ^# s& ^' y* u- @5 X$ ~set color blue0 K0 `4 G: b f% R- @6 a
end& [9 N* _9 e8 g# Y t0 F
& e7 S3 k$ @& Z V: t3 r. Pto poll-class" k/ X1 u- K& w8 w) H
end
" q, Y. ?( g! Z# U/ e/ z/ g
4 S, w$ W/ p4 l8 d- \3 z8 eto setup-plot1
( {5 v! G7 R4 h! R! }: R4 j& l, @$ \, `% P
set-current-plot "Trends-of-Local-reputation"6 s+ X' k1 T" [( z" K6 J
' y5 {0 O' H( F3 X2 D) D
set-plot-x-range 0 xmax
0 Z, X) k4 I& H7 b
; U- o+ E# Z. D4 r6 }* jset-plot-y-range 0.0 ymax& b/ S5 ]- z9 U' Y8 K$ M6 r
end
/ `5 o5 T5 i$ |2 Q* T9 C
* r* m, c/ e. V6 G3 `to setup-plot2; h# m) b% B7 b0 K0 ]
4 \7 k6 k$ ]& d1 I1 Yset-current-plot "Trends-of-global-reputation"
; T2 I! i" q% g, A7 `% p9 q3 c& I3 }
set-plot-x-range 0 xmax
& C- N/ X1 P7 @* L; \9 t& l) f
set-plot-y-range 0.0 ymax
* R ^' X _4 T2 q7 p5 J# xend
7 x5 {! K1 o& C( d- z2 X, r
/ a. D# a% i3 z: Kto setup-plot3$ }8 {+ x. Z* b4 F+ e" @' P
+ e$ R% U% O( v7 k9 x+ N% Y% ?set-current-plot "Trends-of-credibility"
& F* t/ i$ j: A7 y) T
8 ~; t3 ?/ J/ b) ~! Oset-plot-x-range 0 xmax
* N6 d8 `) f K7 r( @) \2 L8 z! c) i5 o( n: N2 q4 ]6 g* G1 A
set-plot-y-range 0.0 ymax
1 Z( L* x( R( O9 y3 A" G6 Gend
6 `2 |% X% f- l4 u* [! I8 M5 G: b# g0 L4 j$ H* z( V
to do-plots
* i& _ _+ R4 D0 S; ]9 oset-current-plot "Trends-of-Local-reputation"" f2 L$ v2 y# N( r: X- Y
set-current-plot-pen "Honest service"
2 @1 a! r6 Q; n0 F5 C* Vend
( K7 D3 l) k) l2 T* q. M2 l/ b/ L5 i$ i
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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