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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
/ h3 r& Q0 b3 ^. hglobals[$ D9 ?. m$ w# h+ R3 j2 e& |
xmax) F" [3 l# A' n- J$ X; _& E0 }+ i4 t: A
ymax
. S! t. @, W+ f' `+ \& {global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中
% A; u1 o/ S! | X/ \5 bcredibility-list
O) i! f& X# o& M0 b" U;;每一个turtle的评价可信度
& M7 n8 j. y5 {% w4 A' bhonest-service" X- C3 k3 i: D% g2 z4 t$ v
unhonest-service2 u; o3 C/ X$ j x7 ]. u, V9 B
oscillation
# |! J. U/ A* T2 d) d3 e1 srand-dynamic, w" ]7 k* x6 u
]
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turtles-own[7 \3 g2 J0 B) B' g
trade-record-all
5 W* r1 _1 l) J' F; ];;a list of lists,由trade-record-one组成1 ], P5 {/ \$ p3 v4 a( u" b$ [
trade-record-one E( O) N/ ]- n$ S' o
;;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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5 [( Q1 W) X9 Z" {;;[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]]
; S; ^* i' ?% z/ v" vtrade-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]6 E5 z. C2 H$ W
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& ^! I2 k1 M3 E- g8 `
neighbor-total2 p# z2 O4 n- }8 J3 V' d
;;记录该turtle的邻居节点的数目1 o; l& K1 O" s
trade-time' I; S- ~ i% [
;;当前发生交易的turtle的交易时间
6 |/ s8 Z( @9 R! k9 Tappraise-give
( P2 b+ W8 N: c- q;;当前发生交易时给出的评价
2 o% @$ t, z( ~3 {! ^% ^6 U. Nappraise-receive
Y! \$ h! q4 J; g& ?* Z [;;当前发生交易时收到的评价
" x$ i0 c+ t# j9 O/ H2 j; i2 [appraise-time
: H8 G) J% Z ]) G;;当前发生交易时的评价时间5 Z2 S& p7 e S
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* v D; ]" q7 T; v9 Ttrade-times-total
% w. D, o" w5 v$ O' r;;与当前turtle的交易总次数
5 j p* a$ Y% p3 Q( Ytrade-money-total& K$ O' |' `4 c% I
;;与当前turtle的交易总金额: c' I3 F% h9 Y
local-reputation
; V6 y" s/ \4 ?6 Uglobal-reputation
6 g( _) \) @4 b/ @credibility
2 ?; v/ ]5 E. C$ n8 t y' L& ^;;评价可信度,每次交易后都需要更新
1 }0 }1 U# a) {" n1 h3 O9 ?. kcredibility-all. m5 q, w) J! ~7 W
;;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
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;;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' S( @8 ^6 t E3 h& _
credibility-one1 `$ `. S( J$ G- D7 E
;;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
7 k" ?) a7 h0 [& X5 R5 {7 Gglobal-proportion- g, W. E" r# t' e
customer" E/ X! V7 F2 C
customer-no0 A' V$ Y c/ ~9 j- o" Z7 s
trust-ok
1 Q8 Q$ b; @( ytrade-record-one-len;;trade-record-one的长度
3 M- m1 N3 H, y$ c6 O' Q]
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;;setup procedure
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8 K0 { O( e! ito setup
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$ N' M" x: S+ ]) nca
# {& K0 h* y& Z! F) |: {+ Q4 c" f' z4 V, y W/ [
initialize-settings, j4 U8 m# b( e7 H
. X( C8 m) `- {1 ]! e* E: ]) t
crt people [setup-turtles]
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reset-timer
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9 ~/ b3 j2 n" q2 }poll-class( X6 r7 h/ u2 M! i+ l
9 m4 l6 j1 B, j! m; _
setup-plots4 F( z0 ?$ `$ g ~* i$ f
$ {7 |! [3 t! `/ w3 sdo-plots6 K8 ?6 _& B; g/ K& F* e( z
end
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to initialize-settings" Z: S" A6 ~6 [( Y
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set global-reputation-list []
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set credibility-list n-values people [0.5]
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* s1 _9 B! d/ V% B* H4 k; jset honest-service 0
$ y9 u0 n4 }: M7 y5 P. S
! u( X, |1 M( {/ L) aset unhonest-service 0
4 s8 [2 s' r2 Q, M4 ]+ p
) Y$ `1 q4 B6 q+ r5 M# C- Q& D8 Uset oscillation 00 k g7 o* m' [4 r2 [" w
2 c; r! k0 Q6 I4 V, c2 ?$ i
set rand-dynamic 0: n( A @5 b# t6 ?7 _/ }) P! W1 \
end
0 K$ t7 b. d# `4 V5 O
5 D+ g, h- n' O1 Oto setup-turtles
& p- S1 t0 E6 R& l! D/ Xset shape "person"4 ~7 Q7 F, s2 X4 x" J# M2 D( V6 h F
setxy random-xcor random-ycor
' @( z' t% E- f7 e% q) ?set trade-record-one []4 l- r W* G0 j9 k/ w
: n5 G& A' T9 r! u0 O4 Q3 fset trade-record-all n-values people [(list (? + 1) 0 0)]
3 }5 B4 p- B/ J" |- O/ `0 J ?) d
) N2 H" t9 J! ~' `set trade-record-current []0 y7 Y0 a9 c9 w
set credibility-receive []
# h" Q$ P7 j, t; }! ~set local-reputation 0.53 j1 Z; [* A' T; Q0 q* F9 Q% o I
set neighbor-total 0' m5 A E9 k1 Z% k+ o- V* Y5 U: z7 ^
set trade-times-total 0
+ F; d9 R. \0 i0 Yset trade-money-total 0/ m/ e2 _& }: L" L' t, L
set customer nobody
/ z- h* G7 ]. F) E+ lset credibility-all n-values people [creat-credibility]0 ~( ?7 e, x" U! A6 Q4 \. h* y: C
set credibility n-values people [-1]
/ s" F g, q* V7 T+ Aget-color# E6 K# M9 u( ^
0 \' U. ^) g O Nend
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to-report creat-credibility
. k5 ^; q. o/ g3 i1 s2 |( \5 q, zreport n-values people [0.5]" H D3 ~6 z+ l
end' B4 l: a6 T! i0 D3 C" H
t' t' B; U2 |+ ~' R
to setup-plots
l2 G' @4 w' O
l6 s7 r9 N) @+ bset xmax 30
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; O) Z2 z8 { h6 Lset ymax 1.0" e$ {2 m& R6 p' Z; S8 Y
* a( A' U4 p) s" \+ w5 p6 W* \5 z
clear-all-plots
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setup-plot1' i# A9 M2 D K' L( @
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setup-plot2/ F& K. S1 {" ]# ~3 l, W" X S
7 V" `, P) J& L$ R" t% ]& Osetup-plot3- L" n' H, O1 O8 M0 q
end
7 O5 [( L* S9 L5 ]8 }9 o0 c) Z& l& Y+ h2 n: P/ q
;;run time procedures
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to go8 d% g- g$ r0 [3 ]7 {0 Z5 ]
" Z: b0 {) d+ V, }/ ` oask turtles [do-business]
2 J6 \, B* x4 m: {' uend `5 U6 L5 F7 J( g/ P2 i
5 \! v P: G! D. U
to do-business , Z6 ?) P" s* g2 {. ]+ g( S o
, p; f4 ?1 b, p+ M F
" X/ o/ R- ^- l' M+ q0 S' d8 ert random 360& C! J6 j3 ^9 X9 \; r6 z
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fd 1: f+ H8 A# B: E! S
. q; e U2 ~: b$ x* s; \ifelse(other turtles-here != nobody)[
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+ H% Z4 ~" u: r- F! Oset customer one-of other turtles-here
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;; set [customer] of customer myself
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* T( h1 u* T6 ~( A7 C _8 j! ^6 pset [trade-record-one] of self item (([who] of customer) - 1)
; [! c& J j: N* p1 B3 j: ][trade-record-all]of self
$ j+ r3 D! n% C. p. G' Q;;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)/ \4 U' n' m! F J
[trade-record-all]of customer
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" ?6 ~9 J2 t8 B0 |+ M4 s$ H0 A7 ]set [trade-record-one-len] of self length [trade-record-one] of self
9 @0 X. B* h, z' h5 b
4 `; \& U% w8 R+ P; S7 Z [set trade-record-current( list (timer) (random money-upper-limit))6 I B. X/ q0 S' s* J8 a
+ Z ?, X+ ]) \ask self [do-trust]
& k7 m" G9 C, R! u3 J) d;;先求i对j的信任度
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4 Q) a0 Q3 Y4 g* _4 t! i5 u3 F+ @% `if ([trust-ok] of self)
* P. o" J* y% [0 ]7 X. X$ {) n;;根据i对j的信任度来决定是否与j进行交易[
- j) C- X/ ^- M+ x2 k+ rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ r. {/ E [+ ?% O$ X
$ c+ J4 S7 r& c
[
`2 t; `* K+ c, @5 Q# B
' y H7 z- ~- k8 T& d/ p- Ido-trade
) d1 W, m4 [( `+ U! Z M4 M; `. z5 b& c5 M; q7 Z
update-credibility-ijl: S' f4 [6 J: d7 T
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update-credibility-list
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update-global-reputation-list
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1 w9 U9 Y* d- Vpoll-class& @0 p( `3 c6 S1 K0 C* Y
x8 U' A' Z- l: F: @; t* J4 z
get-color
- S5 E- E( z. h! }8 y; t+ v! v3 F! G7 d1 m' K6 r5 ]
]]
+ p+ ?6 L; i' W }/ c0 @( p6 v: ^
5 R& S; V0 Y( c, I;;如果所得的信任度满足条件,则进行交易# u% R& \+ |" m+ p* h
# }. Z6 b9 n; {- c$ ?
[
9 F" f" s( f7 o: h& z- O
5 k( q3 i- t: @# V1 Ert random 360$ {6 T$ B& ?2 f, i' e
5 R" x1 B4 r4 Q8 Yfd 1+ ?' k: N1 l5 j
- ?' y; ?, _: u8 O' x# f5 T% z]: ^: K, G) z6 \
$ c- H( r% z/ {% ^' y/ h8 e) F6 z
end
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to do-trust % h- _" {( s9 R3 W/ s1 M; i
set trust-ok False
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( Q: Z h3 u. z: D& Hlet max-trade-times 0
# X0 R L/ Z! q- m) b8 p+ }" Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& m" Z1 [/ e4 r7 Nlet max-trade-money 0
" \8 @: c. s* E: z: ~8 \! }foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; F# N7 g% o1 @8 }7 N3 a: 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))
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1 U4 o, [. Q7 c- ?+ f' B5 w# n
W* K9 a. i8 F, J! M: N; jget-global-proportion' [1 h7 @; h; [" b8 \) T; P
let trust-value
! h' E" {" I& B3 j3 ~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)- w( _4 \3 Y6 U( M$ D
if(trust-value > trade-trust-value)
1 f2 |" l$ U/ {6 N& N[set trust-ok true]
2 e. X0 h* Z! u3 L' B( B: fend9 m2 o, J0 m9 @; G
6 Y0 ~) m6 {; l* G3 ?
to get-global-proportion
$ p6 N0 {/ Y$ P1 y- c% @ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ \/ o4 ~. |3 _& I- Q[set global-proportion 0]! i; r- e4 F0 Q# x% J
[let i 0) p2 g2 A6 O7 t* q* v
let sum-money 0& U& U, W P6 B0 j4 Q$ M" f; z
while[ i < people]% k, y0 u) `6 q8 e% F6 o: y
[7 L" U7 `( o7 r$ D; F2 j
if( length (item i9 F! W; M1 u X- \- M6 l* [
[trade-record-all] of customer) > 3 ); `! K( r% ~/ r# E0 p
[
4 o1 H5 u3 x# Z5 k4 vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( a: l6 K1 J1 d% Q]7 ] w- D8 _" y. Y5 d
]$ x6 u- m; n6 Q
let j 0
4 N5 n, [- m6 M& F7 n$ m! Klet note 0* @7 z) H9 N X3 r* u1 G, R4 j
while[ j < people]
: c! @( y7 [1 ^4 D[
4 H7 `" v, I4 w$ P; r% n4 nif( length (item i
_1 V( z6 i& P$ ~[trade-record-all] of customer) > 3 )
' w* k8 S H# |5 C[
) g `* [4 A. i D. ~7 X" {3 H& iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* _3 P: A. U, G, G8 R[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* J- y1 ?5 e& a S3 N0 a; r2 i7 f) Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ ?4 i$ r R- L2 W V- o
]# f: D1 }. w" \
]
`- G1 b* t/ v$ t2 Y2 [3 oset global-proportion note
+ t. o' q9 N' z+ _2 \& ?5 N]) Q. n9 G' G& N; W
end
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4 B) b1 ~ m$ A( W+ R/ }to do-trade k$ x1 N! L$ @, u: `- L
;;这个过程实际上是给双方作出评价的过程4 [3 k9 L0 W) b* h- N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 k! S# e1 U5 W. ^+ \: ^" jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ q, P1 S# K- \+ a( Y
set trade-record-current lput(timer) trade-record-current
5 C }- z& H+ i" };;评价时间
5 s7 T6 J9 T1 }' y, i0 I. ?ask myself [
" \$ K# n2 T* q/ D& Bupdate-local-reputation
. d: w. E0 K+ [% d4 kset trade-record-current lput([local-reputation] of myself) trade-record-current. C/ U9 l. t: D8 }, r" C
]! o. Q) e: H6 b0 z M8 _& V C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, _+ B* h. ?8 P
;;将此次交易的记录加入到trade-record-one中: S, D# _7 t* Q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) \! h/ H4 l) U% S0 B. }' }& }let note (item 2 trade-record-current )* _5 ^+ @% {1 @9 o3 s: e6 B
set trade-record-current6 m5 t, h1 A% D) i# Q/ O
(replace-item 2 trade-record-current (item 3 trade-record-current))& b4 L8 V- r# c6 G; x5 L) h
set trade-record-current- n; A d2 L* h" I0 B5 k
(replace-item 3 trade-record-current note)* c3 r& p+ a# d: f
1 w- h- A' L( c) f; ?6 g; r4 j
- p# [; a( W" m: |ask customer [: n) v3 w3 A V3 ?' j% j- N: u
update-local-reputation
. ~. ]) B; z; j9 m, g" ^# xset trade-record-current5 R% H$ V& b7 [' L7 Z; [$ r9 G6 w
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; \$ e: ~: J U+ T3 v0 f9 U]
& w3 k9 ? X; V3 g. ^8 E6 {0 t
7 X% k1 y4 ?4 k$ T: g3 w6 w: x G
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. u& {) _' L# `7 k* g9 t
+ u1 j, V2 N; N1 R6 Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
u& Y) N) C8 X( s) R/ s4 E;;将此次交易的记录加入到customer的trade-record-all中1 v( m! H. W1 k9 K& ~
end7 n/ g5 E& G8 Y5 ?6 |
+ r- i! r1 j0 b: ?' j- n
to update-local-reputation! B7 W- K1 a# K$ E0 @
set [trade-record-one-len] of myself length [trade-record-one] of myself8 F: _" q. p$ h6 x, W1 D; |
! M" m( q* @9 n/ S
; [+ I% y9 {) k. \;;if [trade-record-one-len] of myself > 3
: l. j- y. n9 V: s) gupdate-neighbor-total
" L# ?* q- p' I;;更新邻居节点的数目,在此进行1 A0 D1 b/ O) T$ ?
let i 3. L9 _ [7 |' T9 q
let sum-time 0
]/ o6 {5 a% g1 ?while[i < [trade-record-one-len] of myself]
$ b. k( R( x9 u d) c' L: N[. q5 B! A4 c) B: G
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, w7 y4 s' K' @) Hset i! ~' O- @" v# d7 g+ s
( i + 1)& ^0 O7 w. u) g$ f# k8 N
]
/ Y. i; {7 g6 m8 V3 [let j 3 E2 t3 y+ O6 q
let sum-money 0
! d( d/ L @1 K4 P+ swhile[j < [trade-record-one-len] of myself]
% p: `" J7 H* H" x/ }9 s[/ Z% X& P/ j" ^( y3 L9 @
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)
3 j; [ U, b6 Iset j7 v$ d/ D) }7 I, ^' E8 r, y
( j + 1)3 Z7 ?! i" o, q/ ^
]7 J- Z1 }$ t V4 Q! L
let k 3
3 h3 i# ?! a8 Q" S, O7 w$ t4 ulet power 0
# {2 }1 f0 O* I# Zlet local 0
- P! U( G) R8 H/ w- wwhile [k <[trade-record-one-len] of myself]
$ X! N1 Y g: t+ g. l D* L; o$ Z[
' Z9 N/ g: o8 Y" z3 cset 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) ; ^. p- Q" C: t7 C" J: ?8 L' b
set k (k + 1)
$ M; w$ `8 [! o- `8 c3 R. d$ l]" w, L. B; K6 @8 F; |0 c3 ]9 d( f
set [local-reputation] of myself (local)
* a- B, G/ ?9 V4 U& f) W9 send
, m" |- c) N( ^6 y& }: ]
, q( i+ b- ?8 Uto update-neighbor-total
: X4 o. Z. r5 g' E9 P9 a4 t: e; W, E% C8 {) N+ V, v) D
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
6 c( {& m5 ?; E* J. B9 E: v, O1 c3 G
;;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。
/ P! b4 q2 c' x! b+ ~let l 0# A0 K# g+ A) \( k3 g: `7 C0 m G
while[ l < people ], W3 L, {' k9 T9 z0 }
;;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4 f+ Y) E: T9 V6 K- y L7 ~
[
1 l) Y7 X' l" {7 b5 ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer) ]- y, L& r D# @. C: H- `& O" U
if (trade-record-one-j-l-len > 3)
T3 A0 Q$ e/ ~; a2 K[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; i: M& N2 `/ Y6 J/ |
let i 3
) |/ A4 K3 i9 elet sum-time 0
" o; t" G, ~8 v) l( v, k3 fwhile[i < trade-record-one-len]& x" v; m U4 l1 A) [7 u
[
1 v8 D! p: c9 |! \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): O% o4 y4 V+ `5 Q
set i1 `; L' X2 A8 U
( i + 1)
- r3 b/ t8 P( v& ]4 w9 |]: T; N, j F1 v/ }
let credibility-i-j-l 0
. i4 S2 y5 f: c+ X4 Y5 D# P;;i评价(j对jl的评价)
: h/ Y. G8 q V* Y. w4 ]/ |* plet j 3& u! D ~! K, c9 e
let k 4
2 F6 B$ g' f4 s4 x2 v, @while[j < trade-record-one-len]
! T1 P; h$ e% U( L; K3 [6 c[- \2 S# |: G" V& K7 j( a) H
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' y4 z, q8 O& ~# @$ S' `# f0 w* e
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). u7 X$ O ~) N- y* @2 m. o0 Q. n
set j
) b4 G4 U& b$ k- b( j + 1)
0 i8 n0 c a! Q/ e]# w+ @& w3 L% J
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 ))' N4 I9 f0 b2 d( ~9 s
' J7 |7 T" |% I7 B; C- ?6 K& r- B
( [6 N/ `& J x; B) V
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# G" ^; a5 q" S: I* q$ B$ Y- l# z
;;及时更新i对l的评价质量的评价
1 ] U% z3 B* oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: B# }8 K' q9 Y3 z
set l (l + 1)6 |7 U. L( g+ R% Y
]
! T, a) T3 `$ ]5 ?8 Pend9 f' @% G, _; h. z- ~
# d3 V- n; M* {% {. n) k
to update-credibility-list# B# A1 `; G' `( J, Q" Y. y
let i 0
& x+ A5 [6 p- ?) o. Uwhile[i < people]' |' s3 }; u: J/ R1 P8 ^. q# j% n* y
[2 r* v7 k' V: Z7 d
let j 08 J& [' i* f- S
let note 06 O/ h; C4 w \# j+ V) I4 v! i, \
let k 0
( t: v, P/ G& n;;计作出过评价的邻居节点的数目
- D) c7 q' j) y. F* pwhile[j < people]
! `+ f% r" f+ [. a" `6 h1 q( q# D[9 k- u, D# ]5 _7 I) l7 h
if (item j( [credibility] of turtle (i + 1)) != -1)& @5 C. Q$ o# k* y! ?
;;判断是否给本turtle的评价质量做出过评价的节点: j6 Z( i; N+ k3 L' f# Y6 k/ Z
[set note (note + item j ([credibility]of turtle (i + 1)))2 q+ d! e/ [" u
;;*(exp (-(people - 2)))/(people - 2))]
) ^7 V9 H6 B; V, s/ u/ l; sset k (k + 1)
+ N& v! |+ N# H% r4 m! T]0 F# l$ T% Q- t3 f" P& f
set j (j + 1)7 @. h0 x* Z# h" F$ A1 q' A
]9 L# d5 }9 }7 L" `# A u
set note (note *(exp (- (1 / k)))/ k); L8 o0 }: v( f" E7 |+ Q+ x
set credibility-list (replace-item i credibility-list note)
3 Z! @ s8 w2 c: rset i (i + 1)
' F) ]4 e4 W. n3 v' t]& b, N( `0 o& x
end
+ G3 ]. k+ p' F" U7 o8 K( ^6 \ [# F4 }3 F4 m& G" z
to update-global-reputation-list
6 o- d+ Z' W7 x" f) h3 B1 i, Klet j 0 @$ [$ g" J: \, U% X* ?
while[j < people]! G. h% d! g' |
[
Z7 W1 l: k) c; t0 h! Wlet new 0
# r* }" n( N9 u! E4 I;;暂存新的一个全局声誉
9 {6 [* K9 S; L1 q+ @let i 0- z' m1 N. b- y' T7 J
let sum-money 0
' l" D; _1 v" Y% m. Y$ P- ]let credibility-money 0
( a0 \/ k' W0 M0 C7 Z Pwhile [i < people]+ g# J0 M) L) S. w9 H: d* b
[
- N Q" E0 _/ qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# Q1 T4 k( m* j8 X
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& X, Z+ ?! S- |; Q+ z
set i (i + 1)' _/ F7 T. t* H* m9 R
]' ]. w) K1 ]) T% k) F9 ^
let k 0" l, H) S6 h& x$ F& p D
let new1 0
7 G0 \. i A2 E0 {- Awhile [k < people]& y1 J/ Q5 f8 D2 W4 H
[! B3 ~/ D! e( i0 k! J
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)5 K. R% \2 H4 P& s2 n6 ?
set k (k + 1)4 D! \7 y2 I& m. m8 _
]) h; ?6 p Z5 E/ R
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: ?* J; ?, P% Pset global-reputation-list (replace-item j global-reputation-list new)
# P4 }' n. k6 C, m/ d4 [7 L: Dset j (j + 1)' ~* ?9 n- q! m/ p1 ^! i$ C
]$ W. ]1 Q/ {, n
end0 E* ?: I) N$ v
8 ]4 n- x* [1 j
5 z" d f- V/ D. @
! N6 p u0 c3 z. }4 `' x3 E; L$ Cto get-color
; A7 f9 I& y# `. p9 j# }' X6 l0 c1 E, T
set color blue
/ e$ s& E9 c( U1 [end
+ T' |$ A( B& i* ^
/ F+ u0 m3 `5 M0 A, C5 sto poll-class
# V9 i+ | z- A ?4 R$ c& }+ R, yend$ _& t, a3 e# Q5 I2 ^6 \, w; b
1 a) S' F$ _" k' L3 ?& p5 C( Jto setup-plot1/ r1 c- L0 C( y) i& Q
- r E' H2 D" ^+ m# E) o
set-current-plot "Trends-of-Local-reputation"! h8 R( [: X* w2 o( b
( ^" D! V2 _, O1 m! Z8 Z3 \+ lset-plot-x-range 0 xmax0 o. `' D" k& v# s9 a, P
; W) p |( g, k; v
set-plot-y-range 0.0 ymax
7 p# N; Y0 z9 Y" send, G, x A3 z( L8 y- l5 U9 l# b
# u$ m1 I: |3 _, l( M, O
to setup-plot2
3 P9 b9 \- {0 I$ ^
$ w) s5 x E$ xset-current-plot "Trends-of-global-reputation"
' l/ ?" D, ^* _$ V! V0 a8 ?- w; S" T B; j% @! p
set-plot-x-range 0 xmax7 N! V4 W4 [. m, u" g% E6 d
% d: o. [& t. Mset-plot-y-range 0.0 ymax+ U* V) m: t0 h8 U
end
\ m; P- R& r
* ^4 \* A8 h: N4 _: f# {* ito setup-plot3
7 o2 G) M: x1 R B) R
. a" X! F y, D& M( Pset-current-plot "Trends-of-credibility"/ U! [7 D: z8 s! ]' K4 E, C
4 h2 e: K3 {+ z* |' a: |
set-plot-x-range 0 xmax
R$ R0 Q- w8 m! s" G* f
9 E1 z7 W& K" |set-plot-y-range 0.0 ymax' [, N, i/ f$ ^! c& C: _' A
end
% n! S- r: O' i+ v: u. u5 ]7 X) W0 w/ R9 @. a5 a" l1 o# j
to do-plots9 p: W4 }6 o. H
set-current-plot "Trends-of-Local-reputation"" X+ E) F% I* X8 S3 v
set-current-plot-pen "Honest service"
. V6 f2 {- S7 ]+ Oend; u& v1 h3 M1 z" g9 v
& h+ \; e! u9 H& B% M6 M( F[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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