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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
- e6 ]+ l3 X3 ~+ m7 C9 u7 uglobals[
3 a6 n- a9 ^* qxmax$ Q. E' ^$ M# ~" m) ]( G
ymax3 N; N: i! W; Y$ Y/ S
global-reputation-list/ v8 c4 V" q* Z5 h, f$ ?
! u5 O4 d( E3 j" T. C) F; T, L3 Q/ O
;;每一个turtle的全局声誉都存在此LIST中
4 ?3 J/ S z! b9 M* Ncredibility-list
8 w# E1 w) \1 g; S. z5 v: N$ h0 z$ i;;每一个turtle的评价可信度
6 B+ }! r0 l+ F0 H2 shonest-service
- O3 J# ?" i4 F& wunhonest-service
: `! n" G/ ^3 o$ ~1 q }oscillation0 S Q) @/ V5 w2 k9 g S
rand-dynamic! d. J+ M- I' k, o/ g* P2 I$ u
]
& |: Z- E+ y! l
# I( ^6 J P! f% q/ O, F9 t1 Iturtles-own[1 S5 ]! r2 o) i1 P: {" _% U
trade-record-all
* ]8 B2 [2 S+ G j$ l& V4 a5 i;;a list of lists,由trade-record-one组成) V; C" Z- j7 |# H4 y2 T% l
trade-record-one/ b# A6 ?' [3 h# | H9 E
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 c$ c4 I+ f6 e' w" ?2 |
, L- k: P/ [, p. f* u;;[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]]/ C& c" J6 L" n( K8 u) z
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]1 q1 N: J& w6 }! B& @
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; X3 p# G3 B* V8 w8 S8 H3 X8 k
neighbor-total( [% q+ a, Z8 `# m- o% P! l7 w1 E
;;记录该turtle的邻居节点的数目
* D( B; y2 V8 R7 z3 Y4 o Strade-time
+ q3 ^$ x' ^4 V;;当前发生交易的turtle的交易时间
) C1 u% a+ f- C5 O, `appraise-give1 E; u1 M5 u! Q# E+ t4 V8 D
;;当前发生交易时给出的评价
4 V5 h# A- b+ G4 Kappraise-receive: [& M" l6 J0 k! [6 S/ g( ?
;;当前发生交易时收到的评价: l8 t/ u% y/ _2 L" E
appraise-time
. i" r( {. T/ M, X3 @0 X;;当前发生交易时的评价时间
3 l: g, U# \$ u+ c+ z6 J |, vlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
! J$ T3 a9 r/ N( Q/ Atrade-times-total/ @3 o; ^) z; E' o1 i
;;与当前turtle的交易总次数9 l, q; @( W/ x: x
trade-money-total3 U6 l' s% b: R/ c
;;与当前turtle的交易总金额
6 c2 j1 F" F5 x. wlocal-reputation" q7 o# x' ^4 @. S
global-reputation D) f2 i' x( f" n! l& V
credibility7 I6 L+ j7 Q$ j' u" j1 ?' M
;;评价可信度,每次交易后都需要更新
' L, {& T% X& {& Z# [0 |0 rcredibility-all5 B( Q& M: S" L1 F
;;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! v& l3 W( T W5 e
' u+ ^. J5 l- W" R8 q7 U' L# N- v9 N;;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
, {! v; L! o! }: E* S# J( Ocredibility-one
! d; W0 x$ w$ e0 d;;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% t5 Q1 E4 A' g3 r
global-proportion
4 k! t. o6 L7 U" Q) r; X- N; Bcustomer9 p1 X! j& y6 m8 P
customer-no) L+ X6 d& q% v) h4 ^4 Y1 s
trust-ok: _6 `6 m: p5 L- t# I4 u
trade-record-one-len;;trade-record-one的长度
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5 Z& Y6 @8 H) y+ @# }
;;setup procedure- t. r& y0 L5 v; `- C
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to setup
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ca
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$ u' u c4 g# ~' D' sinitialize-settings" ?# e+ O; p: f- z
- V l( n$ ^- Bcrt people [setup-turtles], ]) ^" c U( N! h' v
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reset-timer' P# L7 g, Z) w
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poll-class" S( f/ d2 B' S. l/ R
: K6 ?6 K; t& j) `7 x% jsetup-plots
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# V9 T: o' I2 n" s kdo-plots+ u- ?6 h- T8 ?9 S' L
end0 L2 W$ f& ^$ ?5 d! W5 y [
' h7 {% u( ]8 K7 X+ g" L0 x3 qto initialize-settings+ i8 A% ]$ |' B }; z
% y' b% L0 S% ?) x4 ]4 Pset global-reputation-list []
; {3 U4 `1 D" I' I# E: R* t1 P5 e% w2 J' U" h' f- _
set credibility-list n-values people [0.5]; o; a& L( k" k8 i7 Y$ p" W& U- Q
. J8 B# U- z k0 Yset honest-service 0- L! {6 s1 M5 K7 u' u
Y+ K# `; G' k( I$ w
set unhonest-service 0
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set oscillation 0
2 V) ]: L6 F' x; p4 T4 h% a3 M! ]- P$ {5 F8 Y' I! {
set rand-dynamic 05 X$ D3 L. ]% e
end
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to setup-turtles
' H- ?& l9 B0 A& I1 ]+ c# Z3 tset shape "person"
# G1 d' j/ n- i1 s Q- d. O# ?/ Vsetxy random-xcor random-ycor: S2 F; b, E! M: k$ d% v
set trade-record-one []: k" a# Q) @7 c1 n2 X+ }
" g% o: S9 G9 P. h: d& S7 sset trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []: ~: [9 o" E% G8 S) ^1 ?
set credibility-receive []
8 D/ K3 [7 Q0 |; ?- j: tset local-reputation 0.5
$ n6 o- T V- J% N: i; aset neighbor-total 0
8 ~1 S) z+ d% m) g" u; ^set trade-times-total 0- g# D5 z! v3 V9 p9 ^& h
set trade-money-total 0
; I% N3 c: E) P* @3 Uset customer nobody
9 n# ` q5 h4 N& _* Q4 I" @set credibility-all n-values people [creat-credibility]
. N/ Y. ]% j* Y$ W0 d) m9 Gset credibility n-values people [-1]
6 Q# V$ {+ B; @: Y, U' C4 vget-color
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: s/ ^; H- x; q p c! u8 ~+ _end
7 ]4 U' Y0 y, ]: r1 |4 m
9 `' j( r% c9 {2 J# m" U1 Qto-report creat-credibility
$ l7 l1 `, s2 Y! I0 n- Z) `. Qreport n-values people [0.5]4 [5 y8 D* b) {! j+ f2 r! Q
end
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% E+ u% e: y9 Uto setup-plots. X. e" I4 K3 O1 \: z
: m4 u6 C% E" }' {, w8 c R. [( x& f% k
set xmax 30) t, y. C, C: ^) \% t& b
6 i6 a$ Z6 I7 P4 ~& \
set ymax 1.0$ @8 j9 W; ~* h% i" Q3 @7 y& A
# g+ ]8 k: Q6 q+ q; g1 X
clear-all-plots2 g: P, o% U8 }- N: q6 z( \
6 t5 t+ e. `" T5 ]4 Fsetup-plot1( r! q1 u5 B. K. ~2 @
4 u! \0 f [& J7 osetup-plot2
+ z2 M6 {9 {/ p( r9 J. _
. ]3 N/ J0 ^0 R# R- M5 a+ Rsetup-plot3
]- E, q- P3 E& O% p( Z+ m: m7 Cend
* `) h, Y8 k; J5 C
! x6 \& M0 |0 n$ Q/ z;;run time procedures! Z8 L' V. T" b& L4 V0 H
4 \$ M7 f7 V$ j& _( P4 r9 qto go
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" @: s: v5 |' `" t+ s, l% hask turtles [do-business]
* \( {: o/ A9 U8 W# I# L! c; Tend
8 R0 T0 Y" `" F7 K* O, R9 h2 b2 J" N5 |& f& a) f/ R2 y
to do-business
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6 }8 `; v6 o8 r
rt random 360
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( I+ |9 l/ b# E6 t4 T# o. Gfd 1
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8 d) }. R2 I, k) r9 \' J5 Jifelse(other turtles-here != nobody)[
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- l7 W. T% v/ Y. \( Z" bset customer one-of other turtles-here
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;; set [customer] of customer myself
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2 a4 p4 n) w ^7 x5 o3 F, Sset [trade-record-one] of self item (([who] of customer) - 1)3 v2 |" ?& S: H1 I" G$ _1 l6 u
[trade-record-all]of self3 D5 Y& B3 t, ]: f+ Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& ?/ w5 l( m! d
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set [trade-record-one] of customer item (([who] of self) - 1)
: I! n% o! ]+ M, i[trade-record-all]of customer, K" o3 m! i9 | s% z
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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))
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ask self [do-trust]
5 z) Q! o! k" t o;;先求i对j的信任度
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& d' d1 c9 `. I" p, e3 B4 R$ Bif ([trust-ok] of self)
( {, ]' `$ M+ ~2 V;;根据i对j的信任度来决定是否与j进行交易[' U+ H2 F! y" A7 F. j) o# o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* i3 h% u* w2 X2 i- A- j
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+ D$ b& a, [* n4 k1 n: x$ [6 G* k! r, L' D. _0 k. J9 G* i/ ? v( Y
do-trade
) y2 \. [* f- X! N( a9 Z$ l. U: Z1 _" r. k: U
update-credibility-ijl0 [- C. R8 k! {0 ]' h9 j6 O
5 _- z/ O- }1 l1 _update-credibility-list
4 l$ W( U* _2 ?4 R$ P- U: U+ M& b* f; b: D& D
2 v% T9 H, S& s* F; y2 Zupdate-global-reputation-list
" l2 ?2 n4 m0 y4 \' A" k# N# T( z1 u/ w4 Q
poll-class' u6 Z' N2 y! r7 ]: b5 `$ y
6 A7 t$ J9 P" x. m( k- Q
get-color* Z/ K' Y8 L% Z. r2 o% R7 ?
0 [( j8 Z& w' U]]
- x5 ]7 X8 s1 s6 c0 F: c3 R4 s/ J+ l; V
;;如果所得的信任度满足条件,则进行交易$ a) C5 v* M, r8 Y( N
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[/ N2 |0 _6 y- u- P4 Q
) O" C/ p+ l6 Q% D! Qrt random 360$ B: E2 \3 |* Q3 m
2 ]$ y$ v' f7 ]3 a& |& z9 c
fd 1
+ Q* |6 d6 l# l5 F$ W# b
9 f! J: v; S( u# z R# P- s' j]
7 q. R- {. l( h/ |2 m
$ ]& U9 N: L- G( y. Mend
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! o* x; n$ P& l7 @) z/ }to do-trust
% `- W; {3 O& o. g& N+ I) Q7 }0 Aset trust-ok False: ]' v8 V( E' |4 ?2 X8 k- L
( t( b t' m5 e; h( x, V" [( F3 i& Y7 ]! y1 z
let max-trade-times 0" ?0 @2 U; A3 {$ C1 z$ r! r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; \4 |- e2 O& X& V! s' | dlet max-trade-money 0
1 @" o: w' D$ Z# oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ E- u2 s/ W1 V& Alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 R: j# f* T3 B5 M# r
: `+ F5 {4 N2 ^
# W2 U- I; V5 ?0 c2 uget-global-proportion
( M8 q, Z' z! w6 v1 E$ Jlet trust-value
0 \9 K# |( g7 P. k& [+ ~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)0 a$ R6 A- g6 I; O; r
if(trust-value > trade-trust-value)5 l4 z. h% p' l& |' i
[set trust-ok true]/ _$ r! p) E, R$ P8 P: t
end
, h2 ?+ b6 l& S8 o) ]8 S: I
+ h3 X g9 {+ x% v) ~to get-global-proportion
9 z! u) F7 U3 z* W5 V( l( _1 difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- d9 ^, M4 K; s3 A* c$ }
[set global-proportion 0]* X5 S7 x% o% x1 X' y- k
[let i 06 C7 X: a8 W; ^' X# p7 s+ n
let sum-money 0
P% b# G% a6 g' K" m' {while[ i < people]
V2 b: e1 \: ~" G; C[# Z/ P- W/ m/ r
if( length (item i {% W. N# i: G: i
[trade-record-all] of customer) > 3 )7 t* {# R8 u/ e/ v3 @: g
[3 y5 @% I7 r) o9 B5 j( F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]5 l9 \0 \" N5 E; D2 R
let j 0& K0 w, I0 q, Q; x1 O! G: o
let note 0; \/ P5 g O ?- @& d
while[ j < people]5 a% u! b; o' k% d0 j
[3 a0 P, X+ _; l4 @
if( length (item i
# R/ r1 [: o7 I1 u# n[trade-record-all] of customer) > 3 )
" U+ Q$ a" G& n) Z( I$ b# U[0 h. P e4 ]5 l
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- a9 v/ C2 n" S6 @: x+ u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" ~" |6 s' p5 ?9 y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ H( x% `$ `- v- x" g5 z]" }+ d) i% @) z$ A* G
]
4 N5 q a$ Z% i% L4 Y) Wset global-proportion note
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end
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# o$ V* l9 f9 n, l- p, Y0 A2 Rto do-trade
& j. L" i! a( |; I9 W;;这个过程实际上是给双方作出评价的过程
! C- ~/ X+ n; y+ Y+ N; Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% p* {; J4 |5 F6 Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 F% [* X. _$ D. I) f4 v
set trade-record-current lput(timer) trade-record-current
0 w# Y. c# t5 W;;评价时间
- f6 u' z/ F/ U" `# V% [ask myself [
6 o' j* ^& H5 t9 w! P! _update-local-reputation; h/ M) \! |. Y3 T# o1 v B
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, Z( ^/ u0 E+ S4 X( p: J/ D9 M
;;将此次交易的记录加入到trade-record-one中
+ e+ v. J e8 p& j5 Kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# p# G0 a; x6 N1 H j3 Tlet note (item 2 trade-record-current )6 v9 j: i$ ~# \ u
set trade-record-current
: {& U' C1 G5 h, ?& t* F(replace-item 2 trade-record-current (item 3 trade-record-current)), w! f) V& }- U _0 D2 f* m
set trade-record-current
9 e8 l- t+ `. `, H(replace-item 3 trade-record-current note)- N* o( |% `8 p* p6 r& h8 S
, Y% l. H$ i2 J* N
$ |: ^' L( Q* I
ask customer [8 w7 ~# w0 L) A
update-local-reputation
) k* i* M8 d: z7 E5 S& z" eset trade-record-current3 F5 a, V& n) @9 k8 m2 v- {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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i& J7 F0 U* O
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 J# z0 L; E$ y; h/ y3 V. P, ~. Z% K
; ]: t" ^: C3 Z' j
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! l" }# B2 T. @7 X& b;;将此次交易的记录加入到customer的trade-record-all中
! k& f# L0 n7 P5 j# w$ ~) O' wend; F0 C, A6 t8 C6 @( i" S; S \
4 j: W9 z9 B8 q7 \! H: G( d% r- p) xto update-local-reputation
3 K5 O" p! h9 e1 @set [trade-record-one-len] of myself length [trade-record-one] of myself
9 e# I5 c7 B* q7 o# }( w( z" k8 j4 K
1 Y/ i3 o' a. v0 ]1 B;;if [trade-record-one-len] of myself > 3 : @+ I/ Z8 w* F/ X# e
update-neighbor-total% ]% R& w5 |0 r' V; }
;;更新邻居节点的数目,在此进行
9 z/ ]6 a/ b$ i# Dlet i 3
+ @+ J4 ?3 W/ Z8 v6 n6 E, qlet sum-time 0
. V$ M4 z8 S0 x9 ]' k5 pwhile[i < [trade-record-one-len] of myself]
. ^6 v. Y( g! p[1 k, k9 v# o# [3 |# b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' M" y1 X, s8 y. O& \: F* W
set i
7 _0 `$ o+ W, y' _# R6 E( i + 1)
: u& M0 Q3 f3 w' C# Q, [! c]$ Y9 ` x% I/ s
let j 3
5 s& A5 k0 ~- o7 llet sum-money 0. V5 }: {* j) i; y( b0 W" Z
while[j < [trade-record-one-len] of myself]+ v2 z: r5 y4 r3 v- x8 Z
[
( |7 t+ c8 e4 w3 d) I5 t0 I* x( j5 Xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ e* e2 s+ i' j, P5 h% V, | G jset j
' M. H5 o, n7 ]! V" k8 I( j + 1)
5 O f3 k/ y+ y& h K8 G* T( o]
! B0 V3 g9 J1 _; u) U7 J2 \let k 31 R" ^" z2 P& U( o0 b# a
let power 07 D7 E- |. n: E. o: B; }
let local 0+ F5 i$ r& x( _
while [k <[trade-record-one-len] of myself]+ N+ j: d1 c6 B1 |! s6 c
[
2 h, L: G5 `. _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)
. o9 e4 k2 V7 Z/ m$ ]- qset k (k + 1)
7 j$ T8 m/ v3 \; p]; }3 {+ Z$ r' j: f. @* o
set [local-reputation] of myself (local)
2 l1 M' S2 n4 V- @* P8 G B! Mend
! ? V% L3 k. q4 }+ f5 _
) u9 P3 `* d5 g; Bto update-neighbor-total
( C$ m1 r1 w5 }& E* d& z0 Y0 A+ [5 T0 @* x) k+ K! Y ~; _
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& k* R- J+ Q5 H+ s; o1 N+ Y7 m F* j' q6 m, [' F
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end
. p* C* E& i3 H; a* |+ w, T% `4 Q4 {; X6 M8 W3 x( e+ R0 L
to update-credibility-ijl : O% O9 c! K6 R
4 d3 C* E# \+ A; s;;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。/ h2 ]% _5 i; ]. T
let l 05 W0 y& m0 w, @3 [* ^
while[ l < people ]
8 J! H+ {: X3 {: w7 Z;;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( X& l% `" L2 q' J' s9 C
[% R9 d+ o6 B$ P
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 t0 k) _5 L) p/ F7 o0 H, Bif (trade-record-one-j-l-len > 3)
! S# q- {9 N4 {$ v8 n( ~9 V[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-one7 C! B" B+ O) R
let i 39 |( p) _) a: k
let sum-time 0
# U; K& q$ u6 l: `" l* m. Twhile[i < trade-record-one-len]9 c8 i3 z: F; D- f; Q* | B
[
, ]& R9 k! `0 E8 k5 [set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), i- m4 c/ R6 Z Q% {' @
set i
, ]% \1 K8 S- ?% |6 p G( i + 1)
( }; c' z3 f$ \& G]
4 t1 U, C+ e' W# M- Xlet credibility-i-j-l 0/ i4 J* h5 T$ @2 u7 t* q
;;i评价(j对jl的评价)% t5 b* T; [ f6 ?' i
let j 3
7 U0 J. t- X7 k/ q+ Mlet k 4
! o+ i2 n- }0 {- @5 Uwhile[j < trade-record-one-len]8 g6 Q+ I4 F/ u8 K
[! D6 N7 v# V! V3 @) q0 G" J" p
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$ |& d) i$ \8 ?9 W, |/ L# ?
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 Y. B7 Z& `" u7 B' uset j$ v# d1 {0 k# W
( j + 1)3 ^: m4 o. g8 V3 @- Y1 \" W. w
]
4 e' v+ ?6 ?! M' {. xset [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 ))
' R0 E0 j; g" |/ P
* m* E- }( C# S8 h# z( A! N2 r/ K% j1 S, }
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# y0 g* m4 ?. h
;;及时更新i对l的评价质量的评价1 [- E1 l/ Y- R8 P k# y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 I0 W- `9 b+ X3 p! x" kset l (l + 1)# D% q* U$ q$ t3 J1 s
]
- f8 Y' P {/ E& Fend
6 f3 p$ g! n3 j) P }' }, ^6 R* Q
to update-credibility-list
4 K8 B: z+ D2 o9 h' k4 O- Y2 H8 `0 c3 Mlet i 0
7 w2 Y7 Q, V! M* Nwhile[i < people]
: f+ s2 M! ]" W/ P[. W2 w& K# O1 }* a3 n/ ?
let j 0) g; ]- y7 l# f! N' x) U+ ]9 a
let note 0# y' {: s: \9 S9 ?
let k 0* S5 ^, X0 [. b! t
;;计作出过评价的邻居节点的数目6 j6 \( w1 O3 b. Q. u3 J' y
while[j < people]
( x/ M6 ]( E4 y: o0 f[ c7 s Z) b3 @0 y6 w( r7 l
if (item j( [credibility] of turtle (i + 1)) != -1)
, c4 j, l5 e6 z; q0 p;;判断是否给本turtle的评价质量做出过评价的节点; L& p% e& ?# e
[set note (note + item j ([credibility]of turtle (i + 1)))
* x2 m: ?8 q6 ~+ p+ \- J' n4 f) b;;*(exp (-(people - 2)))/(people - 2))]
- W7 b: N! f& K) z0 w+ Bset k (k + 1)
4 O) y; o0 r* i# J& g2 E3 K]- I2 k- Y/ N' P# ^2 M
set j (j + 1)
: P/ M) m; h; E3 e' I r]$ b+ q5 H* C, t: f4 I9 R" s
set note (note *(exp (- (1 / k)))/ k)
5 V# k, B4 e2 Fset credibility-list (replace-item i credibility-list note)3 l1 o9 y* F/ _% w$ n
set i (i + 1)/ R# `$ ]4 Y. I
]
+ _# F, x) }8 }% q% y3 Lend
# D2 a* W! V3 b7 p0 q& p# o/ M
. {3 P! N+ n3 ~+ kto update-global-reputation-list9 ]1 H% v/ g4 ~. S
let j 0
1 |9 b" a: j6 P/ r: Vwhile[j < people]. p) ]5 L8 b* ]1 q
[
9 C2 Q5 u- ]$ s( [) `7 Ulet new 0: j( i% n$ L. |) W0 o
;;暂存新的一个全局声誉: s: w; s/ m* I! v. Q
let i 0
- _. ?! g) H" I5 c' m# ~3 ^) `let sum-money 0
) u: ^* I% ^0 `0 g6 v6 b/ a! {let credibility-money 0' q" ~% [. \3 x5 ?& ^* B
while [i < people]
/ N. G# I& q: ?; m[+ I( l; `% t% ~* x: Q9 U- A9 x
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ G6 E5 M" q$ m! K1 D
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* e, D0 b6 N( O5 N( F. B' ]) s: u" H) kset i (i + 1): s( w% c3 ~6 `% [' ?; v" m( ~
]7 Y+ }, W1 S3 o$ G5 R& B5 E
let k 0
3 N- x3 n4 o+ [4 T' G5 O9 I$ k) ]let new1 05 N7 c G) T1 o( x0 K) D" G
while [k < people], L, H! w. O6 \2 E3 \1 f! z, n. X3 k
[6 w' t# b# ^' u+ R
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)
W$ n1 ]# ~* J$ K; B! H. dset k (k + 1)
) u! i( N( Z1 c0 @9 f7 w]
; {( j9 ^% s; f! T& R( i& vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 | H6 p" F' Y5 K0 S! G
set global-reputation-list (replace-item j global-reputation-list new)
3 I; Q$ n. t* K2 oset j (j + 1)8 f5 k4 c2 G) J8 U
]
3 u. F0 G8 ~% `& b$ B$ J: z D3 Hend. N+ i- z5 A9 h K! x
( |* r, Y7 e0 b. I
9 W1 [- K' a3 m4 C2 X& j' b# r8 b7 p/ _- L! l/ p
to get-color. N+ l7 I/ ~+ s
; h, S( b" S5 u5 b: j0 o6 nset color blue1 k- R o' z H& c* i! |0 g% j" l& T: W
end M0 p3 R/ M" D' e3 h/ [
% J2 z3 N7 h4 g( q- `
to poll-class5 N6 c R$ g( I$ F+ ?1 ~
end
" l: F, v0 g* R, L( w7 z5 p" e* ]6 m/ _8 U. _4 I
to setup-plot12 z6 W0 r7 Z7 R# G9 j
+ F1 P5 ^2 L( X' Uset-current-plot "Trends-of-Local-reputation"3 n/ b. s* H) [) X6 T) e
! V3 g1 Y8 R4 `4 ~set-plot-x-range 0 xmax5 d5 |0 m/ l. v6 U+ d
# n( y8 r/ G. k7 u! {
set-plot-y-range 0.0 ymax2 m# S5 X0 X9 Z5 P
end
# \7 M C: }! F% A+ A5 [; b" R* ^4 ^2 t# h& k" Q- i& K( [
to setup-plot2
7 g8 s3 G) q- A) D& k( P7 c& m' i" t& ]% D% P/ }" I
set-current-plot "Trends-of-global-reputation"- g, L, | u* ]: z% j
) ~; h* N4 m7 g: t# a; w9 y, ^9 W
set-plot-x-range 0 xmax
8 h3 U/ ^5 \( y2 e
2 K: B& `; _2 h! c% k3 A9 Wset-plot-y-range 0.0 ymax
) [( Y2 d% [1 Q" D- Z' ?1 dend* @; {' ~: j0 h2 ?. }
/ ~3 A+ ~# c3 eto setup-plot3
. B2 @2 d( w, m
) w" U5 p% U- wset-current-plot "Trends-of-credibility"4 b# }' L7 k1 {$ q
# ?% t9 _$ u- [* n( @) A$ fset-plot-x-range 0 xmax
. k5 y' q$ b% a& q1 u$ A' V- d% e7 F* s$ L9 p
set-plot-y-range 0.0 ymax& c& X( L* J! q- p; W/ N% d
end. Y9 Z0 X9 E& a' J& }
9 H. P% s# d! H7 O8 t1 I5 D9 Xto do-plots. J1 b0 T: R: m. q. c0 L
set-current-plot "Trends-of-Local-reputation"
* j0 D2 G# I2 oset-current-plot-pen "Honest service"0 P- G9 {+ }2 h: O# _0 i
end( c! x3 w" p* H( N6 r* D
1 x8 B; I0 h4 h, K. n( }2 ]# I5 S[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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