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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$ {) h% Q4 i7 _, A9 N2 a
globals[. z% j* c H/ G& ?& I6 C
xmax" d8 k7 ^/ p7 f/ s# g8 E
ymax# K% P6 h0 K& H+ @ \ n% z
global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中 h. E. f$ B4 a& {* t- `
credibility-list
4 R- m% d3 v3 ]1 O;;每一个turtle的评价可信度
& d9 D l$ O7 i2 Y9 y% |+ shonest-service
7 z" A+ q& ?, ~0 g. o8 nunhonest-service, X$ H' i a( ?5 n c) d
oscillation+ u7 K1 j1 h5 ^( a, A+ |0 ?5 H2 J5 I- c
rand-dynamic2 {/ C; E0 F/ Q, @
]: N. C; ^8 S' Q7 a6 [' {9 k+ o
& U7 ~7 A, ` tturtles-own[0 |3 a) Z+ b3 B O4 F
trade-record-all6 m% `) i3 d! g6 k/ U+ Q
;;a list of lists,由trade-record-one组成
8 w& ^# ^3 a7 B# Otrade-record-one! z# y, c+ b' I, \1 {
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ ?2 N ]( o: @: L$ c3 @) G- V; Y
) K9 d$ M# O8 ^% Y6 o2 l;;[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]]
2 I, C) A" r/ O/ O& ltrade-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], H* m5 Q4 W& E3 A' v
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list0 f) K" y" m& b; Y
neighbor-total: Q% E- A, p$ e' ?) W2 ?8 K5 P
;;记录该turtle的邻居节点的数目
4 E2 t3 O) d. ~) a- k9 ftrade-time
; e6 [3 L3 x3 K0 I;;当前发生交易的turtle的交易时间. ^5 ?5 |2 q3 X1 s3 h' h, E$ Z
appraise-give( Z% o8 O5 Y: O# ^7 D
;;当前发生交易时给出的评价
+ g, o) p* l. [, o* H x# rappraise-receive _$ i3 n" X% P4 \& k
;;当前发生交易时收到的评价
+ I+ \& L1 V3 \. N: Yappraise-time5 j) s/ O8 i8 A K$ j1 y
;;当前发生交易时的评价时间
, h9 S% b9 S4 ^5 R! T" @& Ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉% Q) C, ] d1 k# F6 Q' c. j
trade-times-total8 H" q2 S/ F- y Z- \
;;与当前turtle的交易总次数- Y( [- h* C$ L! l
trade-money-total
+ s, n9 Z! G5 {" O- c;;与当前turtle的交易总金额
1 X/ `( T8 a: h5 C4 I% M9 w$ W- |local-reputation
! D6 k/ T5 v& G3 sglobal-reputation
0 f: a8 ~* S+ }- R: g5 {. g/ @credibility
8 r% A, }! [" Y0 V;;评价可信度,每次交易后都需要更新8 ^0 j- p+ F& w3 u( Y
credibility-all
' O7 m( ?4 @$ B5 S9 G/ T8 R4 M! y7 };;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
5 W- I% q) A: h3 X6 Z! j
/ F2 ~. o: y- Q4 V- y& K 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
9 p7 C. X, R5 a7 @4 P: G3 Mcredibility-one% t+ P/ |) X" ~2 y
;;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
4 F2 X% L% U7 U* r9 L6 ~global-proportion
+ I4 j0 k/ B1 A1 O- D# }customer6 q/ A6 s* z/ Z# X! j
customer-no7 m2 ~5 A' G4 ~: @
trust-ok
, }; O$ _; G& ktrade-record-one-len;;trade-record-one的长度 Q1 s8 I! O7 e8 ^- R6 C
]
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6 Z4 _9 X, r& B. M5 Y/ V" z;;setup procedure0 W" l, u, l8 j6 S
+ [1 p/ q4 B* g; l3 W6 v3 P8 T- h) Bto setup- J D! G, b- R# P) e
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3 `' {5 D% g+ G6 Pinitialize-settings
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crt people [setup-turtles]
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% W, M! g" N2 jreset-timer( I* Y8 A$ J/ z8 d
& o" L5 g& M. d1 d6 e" b! M$ a
poll-class
+ s* x. Q1 v, v" Q3 P
% l& s ^8 [9 Psetup-plots
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do-plots0 o' E; Z+ K( \2 D" D/ {5 p6 L0 | m
end
7 ^# D3 n5 y' u
) J8 K! O0 \7 {3 p- mto initialize-settings
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f- a* l& _% _8 G8 x5 Bset global-reputation-list []
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set credibility-list n-values people [0.5]
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4 c2 U5 u9 A% t/ ?set honest-service 0
& C7 T9 Y+ i; ? a! Q7 F+ q* A9 m
set unhonest-service 0
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set oscillation 07 O) _- U" a j$ H$ \1 ?6 g
, I' Z. Y1 F% I, z
set rand-dynamic 0
, N$ A# W4 m# Y: {6 x% H4 Y! }0 I! Mend, W5 e2 F: ^9 T P: t
) n: O; Z# _6 }$ E3 ~& @to setup-turtles 2 v5 |( R0 N% Y5 @; C) @3 Y5 e
set shape "person"
6 h9 p4 \7 \. s m0 g# j% b" msetxy random-xcor random-ycor
1 c9 ? v( s8 _# U) tset trade-record-one []( z) d+ t0 z F& w
% {1 I; B- d5 I1 A5 X
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current [], E) ^. r& ~' `" o
set credibility-receive []
' f' l, u+ Z9 d R# N, Eset local-reputation 0.51 u% ]8 g2 W% i- h/ J- x# N
set neighbor-total 05 p( d* e6 | H5 l, F* k
set trade-times-total 0
+ f5 S! S. A5 M8 Pset trade-money-total 0
8 [' n9 A) f wset customer nobody
! F/ R& x8 P/ Uset credibility-all n-values people [creat-credibility]" K+ G) y0 @; g
set credibility n-values people [-1]
- u j: X" D7 M2 I$ d6 q- t5 Lget-color
1 t2 l( D2 X2 ]9 V/ d/ |% ~, x, b" {: U9 q1 q% @
end7 I7 K6 w1 T- u5 L6 a+ z, R
8 x1 W% n" l8 i9 r( ]
to-report creat-credibility7 B0 z1 G( e! ~( y$ c
report n-values people [0.5]
# Q) I, M, }/ V0 ?' k; H# eend
* ]3 W, d+ Y4 P2 o- |3 [& k* J* O5 O1 o/ \! b% S, @" e
to setup-plots, }+ U" b) K! b k$ G
4 E% k" g1 P7 A, }- D/ Z L+ Fset xmax 30
1 B0 V K0 \: [3 {
% g4 e4 C) k8 [2 Iset ymax 1.07 p Z- s/ B7 l: D+ B9 V
: v# N0 k; X; {7 l9 X$ v; \
clear-all-plots
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: D6 P' L6 u, xsetup-plot1
# [& `% q" n. H m B# {
1 D E# g1 a1 Q& xsetup-plot2& L" ]/ @& a; E9 f. v
1 r) g$ ^5 o V; O; k0 T, _ p. Ksetup-plot3" H Y& D% h/ y9 v$ ]; M$ W, Z& v2 q
end% Y9 w! ], X+ q" r
8 u2 Z$ G- b: R8 _
;;run time procedures
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to go. x3 C8 f2 `7 f: W
! v- f6 g$ J% p% O2 g. R
ask turtles [do-business]
4 y* j: N9 M' [' U: xend
: h: E4 h2 O9 d7 r6 D! l/ r0 H. ?7 V2 b' u
to do-business * @) B( F* l" c# e3 K0 g
+ n# ^$ W5 M: t! H3 ^, a% q
6 \- Z7 t: T* c% J D& Prt random 360
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3 }: q/ J9 Z8 O2 Y9 X6 cfd 1
3 i" w& ^; ?' Z! s. Q
u6 W* ]0 h4 \4 F& ?# Hifelse(other turtles-here != nobody)[7 e9 Z" |) F2 n! n8 X
. x/ h' R- w9 i& Q- vset customer one-of other turtles-here4 N& U% q- D! _/ P7 d
( q8 |& c/ }# l% \3 R
;; set [customer] of customer myself* W {( q$ z/ z. \4 l3 {2 f
7 x$ ]* `' u" j0 g. B' N! Mset [trade-record-one] of self item (([who] of customer) - 1)
2 p' ] k& U) h a2 w[trade-record-all]of self
% V6 `0 u. Q1 }2 m% U;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ F/ @8 i' X3 T1 I( m* C9 Q1 R
, o( @" H. [; uset [trade-record-one] of customer item (([who] of self) - 1)- w. \( Y6 I$ J) s8 a! ?
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self7 a3 P8 C( T" n6 G/ i! \
' t/ }9 c, a \9 n+ a* c& nset trade-record-current( list (timer) (random money-upper-limit))
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* X2 P) `& \6 D) ^! T: u. p# k1 _ask self [do-trust]
`! b5 r4 G, @* b;;先求i对j的信任度
% ^% ?8 e+ T& O, I+ t6 q
. w: \* I3 M o( R8 fif ([trust-ok] of self)
& | a+ N5 E0 k4 v1 r8 I;;根据i对j的信任度来决定是否与j进行交易[
7 {8 [$ ?% g# \8 b' U# v5 v& |' mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# ]& {: o6 e* f9 c
# H' ~+ N0 p7 {! E" j+ @[
8 C; ~2 c# g4 E7 Y$ ^
7 @( ]3 Y+ P7 y1 A7 c. M$ gdo-trade3 {" ?' v* a: Y. x* h: }
- T0 E- B# c- `' ~$ b
update-credibility-ijl
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8 E* i/ m+ i6 H7 Kupdate-credibility-list
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update-global-reputation-list3 X* h; a) a% c5 q5 l! c
- g& u, @+ F: [# ~. ~5 r
poll-class; E# N( r5 ^8 D0 B0 W4 p6 N
4 r( k& s$ ?+ _) |
get-color
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8 ^. n1 M$ x# K1 `" _9 _]]
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;;如果所得的信任度满足条件,则进行交易
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5 q8 B" {7 C+ Z9 v% A& x[
/ Q( ^7 F5 q5 x8 K$ s! A: R4 h. ?2 h. ~: S/ n
rt random 3600 j2 M$ Q+ [, V# b% D6 ]
f6 r' q ?$ ~$ s4 G: D" B! m
fd 1
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]: O; {1 Z1 z5 d) C# ~1 q
$ j! O: Q* c8 }- S& b* ^. A. `
end( s* Q) H9 q) B( T7 V( V
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to do-trust 9 g8 z5 e8 H; p* v; \
set trust-ok False/ Z* i7 V* |2 C% e3 s
Z# G+ o* E" E
& ]) q, y/ a/ blet max-trade-times 0
/ Q8 | u3 \3 O; p5 Y9 e9 gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! r0 D% L+ {) W% Q
let max-trade-money 0
5 f' o2 A S/ B: k( yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ b1 Q; ]: [! H' F& }
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( h# k4 e! u1 [, z8 ?; r
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/ r4 a/ k2 V1 K. x5 T$ }get-global-proportion
( q2 j$ I8 ^2 [6 b% _let trust-value, q5 s$ A* R; f$ v, A
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)
1 Y7 H# K7 \6 B& vif(trust-value > trade-trust-value)
0 C1 n# A) j" ~[set trust-ok true]; W! U6 P' V9 z7 f3 s, W
end6 E- o% l0 {9 a- q$ `; {/ p5 f; N
7 {5 A7 Y" b$ ~8 x/ C$ x! s Fto get-global-proportion
, ]3 P' H. ~, T& }% p3 vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
; R, C. p" Q, G0 D: C# _[set global-proportion 0]5 ?) L. j7 f) q) A' a" U
[let i 0
& g. c( y3 y8 K7 Hlet sum-money 0
1 B! Q' L$ n T) d3 ]while[ i < people]' ^- }7 }5 l. c& T& t
[
; N; ? m9 e3 i) a# Sif( length (item i
5 r$ y9 W6 p5 }6 A[trade-record-all] of customer) > 3 )
/ R, s+ b: L/ A& [8 ?[, C0 C6 g6 f6 o- m
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 q r# n" p+ G }" h: S9 _" `: K]
. V* c. S% k) k* f- f) o6 W6 h]1 ~7 [8 t/ G3 U) f2 c3 V) `, Z0 K8 l
let j 0
8 ~( [3 N: s& a7 h5 r1 Mlet note 0& M$ ?& W$ @2 f" e' b, \
while[ j < people]7 j( J' Z4 v2 e' T
[
+ S! f4 y7 t/ f1 i1 Q) u; W2 [" v4 p/ ~if( length (item i
) W' s7 q) @2 ^, o/ x4 W/ a[trade-record-all] of customer) > 3 )
' d. a2 [, Q$ X& N[
' y/ s% ]; N* F* s) Aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 \# b% N2 r& \) q5 r& G[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 _, X- l3 [9 ~* m8 T+ K* a
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( Q, P: n- @# O
]
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set global-proportion note: E1 W! Y& E/ D# i& }' p
]
/ t; \/ @: C$ V. `1 W' gend
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to do-trade
9 z8 H. m' K/ _; t, h;;这个过程实际上是给双方作出评价的过程" M8 ^* @! E8 o- o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 {7 g9 f5 X) |! ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# _! w( J* q) D# ?& ?
set trade-record-current lput(timer) trade-record-current) P( a) }( E+ g
;;评价时间
$ R" z5 ?+ l; ]- f: cask myself [
' L* \, R; _0 X$ c, g2 jupdate-local-reputation
7 u/ V8 F" Z; K! K) U+ `7 i( q6 Eset trade-record-current lput([local-reputation] of myself) trade-record-current
2 P, O) W' A# {) u% D3 u3 V$ ?]% L5 u: l3 P, \
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* y( [, W& E& L1 V5 y;;将此次交易的记录加入到trade-record-one中3 J M9 b7 L6 P, Z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 y+ Z% p# y# t+ u0 Tlet note (item 2 trade-record-current )+ o* ~7 \+ W+ Y% u; w; G4 ^
set trade-record-current- \/ g) N: z. N; z
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 t7 x' o1 E4 H* w# \& iset trade-record-current( o* u4 |+ d! b' o, [2 ~
(replace-item 3 trade-record-current note) M" N! U1 k% Z$ ]- S; x
7 I/ d; i$ l0 p9 q& A) b
+ ?7 F/ B* {. Y; r3 Oask customer [8 ~1 o/ p/ v% T1 h$ n8 s, O
update-local-reputation- B: G+ ~2 o4 N6 P3 f7 F
set trade-record-current/ i: y% d$ w0 r4 ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
/ N5 s( H X% e! m& o/ s]
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: S9 R% F9 D# g7 `$ f3 Z# O
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# H4 o+ A! w; p* q
;;将此次交易的记录加入到customer的trade-record-all中
' f& g% L+ k6 m1 ~end
( Z( l8 u. ~! G0 V8 @3 K8 H
0 G$ K4 l; c2 o- N4 ?) A: oto update-local-reputation. r) r y6 I$ G0 U
set [trade-record-one-len] of myself length [trade-record-one] of myself9 ~" H: X# o; W; V
* J/ X( ?0 _& Y4 p8 W# S* ]0 ]
! w8 f$ P% ]+ J& ]' P$ {;;if [trade-record-one-len] of myself > 3 ) ~* C# p# T& d% l) z' P' G6 o5 f
update-neighbor-total
/ j$ L u9 h! K8 I% b9 M. J;;更新邻居节点的数目,在此进行
5 }- t. ?! \; w* W Flet i 3: z& h6 D& Z- r9 _7 H+ J
let sum-time 0# v: ]9 \1 }5 s9 _
while[i < [trade-record-one-len] of myself]
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8 R4 D5 D6 n5 C, [9 c3 }8 ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 i$ B4 v) `9 u& G- k: w. oset i$ ~$ \( F G+ O9 A
( i + 1)
; p9 l% J. S& K( {5 `]
5 Q, c" \+ ^( U* o* {let j 36 _; A" R. Q, T1 O3 F# x
let sum-money 0
0 |5 b d: d7 G$ n4 Twhile[j < [trade-record-one-len] of myself]; \% p! K- s. G9 `% T
[4 K8 ?+ p! L4 l; j+ ?$ g
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% q C3 Z, C! N# ^, U& Mset j
7 D! Z) K0 F8 v0 [( j + 1)
+ Z& |& l8 G: d/ e0 l]2 O% G& P6 g3 b
let k 32 t8 I8 u4 s9 s! X
let power 0
1 i* T6 ?" Z# O5 flet local 0
; f, W& _* W5 f" Wwhile [k <[trade-record-one-len] of myself]: v u1 K; v; h9 }. i% _
[! c; K l$ N$ W( J t7 h: M+ \
set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money)
3 ~; O5 M P6 S3 y; hset k (k + 1)
; {) Q; {. Y) O& f+ b* \) a]# x" r4 R8 S6 N: n8 f
set [local-reputation] of myself (local): p1 W6 O* W" v+ A
end9 D, a w' @+ V3 w& s5 r
6 I, _" L; W2 ]) w; Tto update-neighbor-total* U0 }2 F% E3 p! @# r$ t
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 z# k+ D; e% a/ a4 q
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+ I1 |9 N1 A4 v0 k, E" d- b, W
end
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to update-credibility-ijl . {7 y/ G, f% T7 p: l
/ _- q1 u7 y& w/ u) A2 j
;;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。7 q1 M5 @: c4 q- h+ {
let l 0
' O! U9 F3 y: D- h5 W& Bwhile[ l < people ] j: E4 B3 i4 c. p! ?
;;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
/ I# {; T6 Y8 @[
( ^- v, V% q& ]- ?# flet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 K4 K6 q d8 t2 B; k1 g! Sif (trade-record-one-j-l-len > 3)
, }4 O* W+ d' F6 ^[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
1 r5 L' P0 M$ M: @2 p1 ^let i 3; o# _) w& Z! U+ i5 }- L! B: l
let sum-time 0% M: A: W; u) d) g7 a' B
while[i < trade-record-one-len]4 ~, @: r" Y( V- W
[. w& H- f+ R) i( G
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 q8 J; p ^* y3 J
set i
! b1 ]$ V4 F9 b) g- z) K7 C% j6 k( i + 1)! ^* \6 K/ }" F7 H9 ]& a
]
) |, Y i+ H' V, ~/ @, \let credibility-i-j-l 0
& `8 p l r2 ]2 y9 ?2 i;;i评价(j对jl的评价)' h" L5 |+ _# @. T) Q" I6 K
let j 3+ Y! k- i& I0 Z5 B T% j
let k 46 i: w9 L' @$ X
while[j < trade-record-one-len]
5 j- O9 y7 W5 |! N9 p3 @[2 Q9 n/ }% j B# l7 O F) E6 n
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 g7 a) W4 A# T$ c
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)
0 n) e; y1 A& F4 x5 c5 R& P% Bset j( l: R: [9 `8 s$ J7 n5 ~. X! p* a
( j + 1) X/ }' Q9 B; n% ?9 j; ~- y; d
]
b' e0 N' V0 L- W6 u3 {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 ))% I$ q" c! M) O# Q' ^+ i; X/ v+ b
0 x5 \2 t u2 M, L" `# s2 q. \/ P& C
% o, `" o6 g `+ T4 z( a& c. Z& {% G
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& J3 u% x2 a- }5 s4 `
;;及时更新i对l的评价质量的评价- c# s4 W. C. f5 m4 u1 E: ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] _/ {9 X" `+ a7 i
set l (l + 1)
6 h& a- \8 w0 b& y! Q" h& s( ^$ y]3 a5 n6 {9 a. V5 k2 i% a
end' y" t @5 o6 B( [) c* m* t( _
2 t7 l6 d) x: k( X9 W. k. w6 s! s' k6 U# ito update-credibility-list5 {# m9 Q4 Q$ m5 S, l7 b* K/ H5 H
let i 0
6 U* Q3 |* u) d" ?while[i < people]
/ ~% q# W* B. l8 `; [* F[
) a( s: w- s6 q4 B4 D7 ylet j 04 H+ |4 X) W; O0 G( C. \' o4 m
let note 0
) n( X& B' r0 g N0 @let k 0- A8 S( \$ m X0 Q- l* A$ B$ I
;;计作出过评价的邻居节点的数目% q$ O+ S2 d* X7 X* p
while[j < people]
5 m+ l# y! a. j( c! O- V[3 l' z% o' N; Y4 o5 c3 n
if (item j( [credibility] of turtle (i + 1)) != -1)
/ F) c( h7 G" J/ c; M! G2 x;;判断是否给本turtle的评价质量做出过评价的节点
+ h3 x# Y, f) w2 R5 m[set note (note + item j ([credibility]of turtle (i + 1))): ?' _1 f N' t- Y
;;*(exp (-(people - 2)))/(people - 2))]. ]- ?. a+ n/ [6 Q9 ]
set k (k + 1)
# @2 U9 ?) Y( N]
- B+ h; T- x( i; iset j (j + 1)$ [/ B+ J5 [2 r- z9 {9 _! w# y9 ]/ T' k
]
+ q. K, A# G8 f: v; Xset note (note *(exp (- (1 / k)))/ k)- k! q# J3 t* L
set credibility-list (replace-item i credibility-list note)
6 H v! a$ P1 {( F) uset i (i + 1)9 B! V0 L4 a* X- G
]
$ o# M& F" p( Z; X$ tend
1 @9 v) A6 g( h5 E" L8 e0 z; }. I( A$ l/ r& r" K; u9 w
to update-global-reputation-list9 [! x0 I- {( e1 w: ]
let j 0* w* A$ P9 P% n2 T3 B) x
while[j < people]
, a& N% Q1 ^ q9 _8 w[
9 j9 G% g" Y( U# J7 N" \let new 0
# q8 I# o0 g6 C' S9 u# E+ D" f+ s;;暂存新的一个全局声誉6 Q* e+ z+ F4 A8 k" S- n
let i 0
, @/ C$ V0 O$ ?/ \let sum-money 0
S$ ]7 o# K3 [1 }# s% Q+ q" ~let credibility-money 0
! R& b- W N8 m( X+ q* swhile [i < people]7 F, U {$ R9 l- E7 C$ ?. C' r' S
[# c, C$ i3 J6 M5 i8 j; B5 J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' `5 q% e+ J2 L, F$ K; ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! w# M" g2 B" L# T b4 n0 s
set i (i + 1)% P- D+ I) @, k1 }! g
]! |/ B; G7 K \/ U9 B" C5 G7 J
let k 0/ D! Z/ m4 D, Q! T4 Z
let new1 0
5 w2 `* V: V! U& a. iwhile [k < people]* Q# @- G, q, l$ z" Z4 }* n, e
[ x: Q8 A* h8 Q) @: |6 |6 w
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)( j% p2 g1 v* h R) O
set k (k + 1)
. L! c& Z8 M; n' z2 [7 ^ C/ U]
; w& Q" b5 u- |/ H2 t9 Xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- B6 {, P4 j) ] G- M! c6 Gset global-reputation-list (replace-item j global-reputation-list new)% g& K/ |' h: {+ T% w9 P+ o
set j (j + 1)
5 F5 B7 v) \) S# T* H]
3 Z, T+ E5 d5 }* Q9 Send
8 K1 j4 T; j/ S5 }! ~; J5 g u: @, \
d- Q5 C4 y! C+ \7 Z% B
* v5 ~" U( Y: `& R9 C: eto get-color
3 e8 D/ A/ o) H( a+ \
( C; z& _( f$ E. x5 pset color blue
$ z7 ?) W- I9 f7 j- Y( A: i! }5 N, l+ wend& e( U7 V- W% _6 V4 ^9 N( e, m
% N* f3 K0 p# u+ a% i1 i6 L Bto poll-class
9 ]- ^/ e4 ^1 g, K* Dend- W8 Q5 R5 o- V) }
6 a% F& t7 X1 m, K
to setup-plot1
% Q/ q7 _8 u9 Y5 ~+ B' X
, l, x- N/ E3 Qset-current-plot "Trends-of-Local-reputation"/ r% i7 c& s3 q6 R. `
9 H e# S7 s! q ~: y. N, bset-plot-x-range 0 xmax0 A) W, |) x3 Z3 U, n7 _
}# o- f7 i1 i# S+ b& v; pset-plot-y-range 0.0 ymax
4 y, W, @& u- V( fend0 b. t* r; J D7 }2 F) t$ Y
" Y0 P" Z" F t! S& k' A2 Sto setup-plot2
) H% G7 M- A! _
3 U% a. a; N9 ]2 ]set-current-plot "Trends-of-global-reputation"0 u* I. E% P X) j$ _4 s
1 Y- o7 b6 ^ z& lset-plot-x-range 0 xmax8 E) ^$ O _- }0 D! n" D
- F' {1 i }' \: F/ B# J' e; Bset-plot-y-range 0.0 ymax
, Z" u1 }# E4 O' _; ~* Nend
# h/ W" ^ G# b: U# z2 B5 V4 K. I6 ?" b1 _
to setup-plot3
& X5 U1 H8 @3 I! ?1 F$ D( ? h5 m9 `5 a
set-current-plot "Trends-of-credibility"
8 ~+ d% _) E% Z4 @) E* s( c& y/ N8 }+ }4 P# F2 }" |
set-plot-x-range 0 xmax
9 e7 }1 [- \6 \1 o: |7 N- o: i: ^, U; V. A
set-plot-y-range 0.0 ymax: L# T6 Q$ L3 _$ R2 i0 N( B
end. `, I& l. S [" D( f
: R6 C8 d- ~) L8 N9 Zto do-plots, U, a# \, R+ x( O) D& v! w
set-current-plot "Trends-of-Local-reputation"8 ~( F7 J3 _1 a/ [9 o$ [
set-current-plot-pen "Honest service"! \3 o# F f( _/ E" v
end
, ]: ~' t% n6 }! u8 z ?
( I1 k5 f# m m% P V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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