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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) u V) S0 J1 h& o' |, Y0 ^
globals[
- c5 `) U" V. r% txmax
7 G: c, O5 @; ~# z; Q: \ Tymax
; |) N9 w4 ~0 b+ V3 Z+ Xglobal-reputation-list- A4 h) h3 ]* R2 g; H R
& b+ }: t8 g7 @9 O" }& ];;每一个turtle的全局声誉都存在此LIST中 a+ g# t& u. s6 Q o* A& o& A+ s
credibility-list
2 w* r: K% m0 |: Q) I, x;;每一个turtle的评价可信度
, \+ G" @/ R( ?; f$ bhonest-service% Y+ x9 c( ~: _* D" b
unhonest-service& g- t2 R. {2 z% Y0 J
oscillation. f! e0 X2 W/ S- H5 H0 U: V
rand-dynamic4 s6 C9 R. ~* h6 I2 Z) {* P
]
' _6 M2 `. R1 x/ {. O* E3 ^
2 y; S$ y& d$ z+ {: R) D; w& Eturtles-own[
3 _) q5 C' Y! g# htrade-record-all
8 D; p, ?& o2 V8 u: R;;a list of lists,由trade-record-one组成+ y7 Y2 N& m8 j
trade-record-one
8 t8 |2 S6 \- r/ E" E% 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]]
/ Y+ _. c9 y) v# f/ Htrade-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]$ `9 `! G T# u
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 S: _4 X; E; _, D/ ?+ I- k
neighbor-total
g+ Z$ ]; L0 ~# a6 H4 _% T;;记录该turtle的邻居节点的数目; I1 O/ K" ~/ s z# o
trade-time# u# \+ i6 c7 @ R1 o
;;当前发生交易的turtle的交易时间
: @: k/ x2 w; P( f, W2 cappraise-give6 k) E3 v8 S. T. _+ D' [
;;当前发生交易时给出的评价6 `2 f K% c& o: v: X; \2 o6 L
appraise-receive
2 X! p4 R9 \3 E2 ^5 G;;当前发生交易时收到的评价
. u( Z; g$ s% G Kappraise-time
% k7 o1 H) G/ x( _2 ^3 ~;;当前发生交易时的评价时间" |2 G6 \# M; d/ i! b
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- T) R: c7 L; n6 R8 t- j Mtrade-times-total
) r) F( x( f; c& q& Y+ a;;与当前turtle的交易总次数
# c/ _. p" T8 v$ ?/ y% N1 ctrade-money-total
6 K2 p/ C, O) z" S;;与当前turtle的交易总金额$ X3 L! d9 \9 W
local-reputation( T% t: Y: w3 S) N! L# b4 K \
global-reputation& x% O8 D" k4 B& \2 W
credibility
9 Y# S8 U/ L, Q) D X: H- P' c;;评价可信度,每次交易后都需要更新0 Z1 q' g- N0 w6 L* \/ t' k& M0 w
credibility-all
1 C5 J' Y$ z& |" U0 s;;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' r d! O7 I# j0 E6 g
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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
* |! G% D% G6 y- `credibility-one
* h+ h3 ?) M5 d4 N9 P;;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
2 Q$ y4 U6 b. E, H' vglobal-proportion
/ ^6 W) B" H- E, s6 P* x w/ S0 m- [6 b: Qcustomer
d5 J! b- }( {7 dcustomer-no5 Y B# S/ |+ q) s& `* c
trust-ok% B# t- g6 F k5 H+ i
trade-record-one-len;;trade-record-one的长度
2 l, q( b ^2 G]
9 I# E' U( K& V4 O% ?5 c9 `0 Z; W# U& j c( ?! y6 O9 K7 R
;;setup procedure
" {4 J2 z9 E% x) @6 K2 t6 h9 o1 a q, D( n! ]; E
to setup) t4 L- t/ K1 l# K+ W
8 f {# z. O, Y* \
ca" f8 ]# z2 r/ L, ?5 X) ^9 U C6 ?
1 F: F; m6 C* K, N& N9 c$ A; ?/ _initialize-settings
3 W5 A2 s8 d9 _0 |* X
/ U& F7 M4 W, N* s m* l" Wcrt people [setup-turtles]
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reset-timer+ ~) M D0 |+ y# ]
' {5 L" W: I' u {. @, hpoll-class6 k8 o: v9 d1 t; \8 i, J
, r7 w* ~8 G* M+ V" M( psetup-plots
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do-plots
+ Q( X& ^9 x Q T- h% @4 kend/ ]' x( c" a; \$ |4 U4 a, \! h
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to initialize-settings$ `& C' _" o' ^8 n8 u q( Z- [
0 l/ O( Y: ]) [set global-reputation-list []
V2 } ?& I2 X
/ |/ V2 I9 M" @! d1 G& [, s0 Wset credibility-list n-values people [0.5], f, P4 r c( B8 P
# X9 ?/ ^) R! R! {set honest-service 0
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set unhonest-service 08 c# j2 V$ P0 J7 y. u
+ j# F8 ?3 T" `
set oscillation 0
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5 z' F* k" D/ e+ sset rand-dynamic 0( ^+ H; f! L: ^( I: ^; z' m
end% {& _- [) b$ k4 o; t x
% H' {! G( n7 T# u/ X0 Zto setup-turtles $ \5 j0 g. n! i) I8 Q
set shape "person"- ]" C/ q/ @$ a4 ^* I
setxy random-xcor random-ycor0 n' h7 O7 L2 V' e: W$ \8 C
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
J$ g( i: O4 K5 I, w1 \, { }set credibility-receive []! J t) j! E% S# }2 N
set local-reputation 0.50 t4 @- t- u! }4 d3 F9 u& h
set neighbor-total 00 W6 M# o/ n2 n$ B9 B, X/ Q
set trade-times-total 04 F) K( e; s& x+ e' ]) y
set trade-money-total 0: Q2 x6 T% M/ D/ i# Q& k% G5 i9 ?
set customer nobody
# h; }+ e8 c; E$ ]3 V* g$ Fset credibility-all n-values people [creat-credibility]
( E* u+ e F- k' E. ~set credibility n-values people [-1] I9 e# b2 d/ b1 n! ^2 V; l+ E
get-color$ ?, G% P8 m- U- u% D
4 F9 P/ l% a! vend5 n N) Y0 j; Q8 j$ H
B1 _7 p/ V1 ]& ?
to-report creat-credibility
( r' |8 O' n, l" \* R8 B5 V5 ^report n-values people [0.5]5 P# g# K1 _- b& V+ X2 ?! d3 ^
end
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# [8 H# L; h) Z5 O( r/ tto setup-plots9 u0 w, y* J) x/ G9 J# }( o* {( ~3 H
6 |# f7 c' {+ R2 Mset xmax 30" n$ \4 ?; V0 v
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set ymax 1.0
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clear-all-plots& W, Y8 q$ `7 S& k, n. m- Z" \
6 g8 N6 ?# t* F: Q1 Osetup-plot1
" M3 z7 {2 E; u0 v f
i" w: L- W/ H" \' ?setup-plot2- ?) ^" V; m% c! L
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setup-plot3
' {0 ~# K9 Q5 Uend
! f0 d, u9 h% r
7 ]# ?# _- A5 T4 ]& X2 s7 }6 P;;run time procedures
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V" H! a! t9 U H6 q# {1 Qto go
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ask turtles [do-business]. I# H2 g B- q3 r. C, m: `* l
end
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to do-business ) U1 D! ]% F& K4 |5 R& y( s# ^
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2 g; T: k! U% ?5 Ert random 360
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fd 1
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# G/ o6 w4 e) Oifelse(other turtles-here != nobody)[8 S% x$ A f Q! j
n5 I0 Q$ A* v- {9 M$ `+ [set customer one-of other turtles-here
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4 Q1 f! ?" z: I# p5 |$ S;; set [customer] of customer myself
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$ B1 ~# r+ Z5 | }' u& [set [trade-record-one] of self item (([who] of customer) - 1)- |9 `+ e* z& n4 A
[trade-record-all]of self4 f7 n/ X2 w9 U* A' D9 Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ M, Y6 S! E1 \) Z
?% @! r; }3 @1 S' E( x
set [trade-record-one] of customer item (([who] of self) - 1)
! Q4 V+ y! O$ O$ h[trade-record-all]of customer
, f; M) L8 |" T
) k$ s4 `3 D8 E/ i% @! j V4 lset [trade-record-one-len] of self length [trade-record-one] of self, V: `! ]% q: ]. |
4 x# }& H1 Z7 ?* b8 O% pset trade-record-current( list (timer) (random money-upper-limit))
8 [: z" p/ G2 Y5 m4 z- Y P8 a& ^% }$ }
ask self [do-trust]; `9 G [3 p( K% V. U) q
;;先求i对j的信任度+ E( u8 C5 Z' S2 |3 x
A: L9 }4 Y: ?5 [4 Tif ([trust-ok] of self)# }& c d ]. l% t8 g/ G2 o k
;;根据i对j的信任度来决定是否与j进行交易[( {3 E9 h4 f8 J+ u& H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself5 J6 o9 o/ L3 q7 p
6 q0 C: X- z2 u6 Z/ g1 l[
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do-trade
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; L0 ]: x, w6 p5 o( tupdate-credibility-ijl3 b6 \6 M* B% y9 s0 `
# m: S& P6 I* Q1 u0 Q+ Yupdate-credibility-list' e3 s1 \5 N- m$ m
3 c A/ U/ q" p: g6 n. K( H
0 M; Y$ m- l9 }5 Qupdate-global-reputation-list
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( l& o) I7 W, v( ipoll-class i7 N: ]' ?; u6 y
5 @8 m9 E1 y5 j
get-color
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; H6 R3 b& k, o) a# t* c]]
" \1 @- Q, t2 i- W
$ d' W! n6 }0 G' s; \" l;;如果所得的信任度满足条件,则进行交易
5 X* p; @7 S+ Z1 i* c. k
6 l! p: n6 O2 [, L" W" n n% F[0 B+ I/ c2 W! w9 @! Y8 c4 |' Q
# B0 b4 z, |+ U/ m! P' o" f
rt random 360) i& i9 a! a+ Y7 q7 L
2 n/ ? |* C- A# p! efd 18 x8 ~& ^) E) o# S
& y2 N+ ^! W1 O0 j5 s]
" c! |9 V. |9 v) {
% s' G5 `( g/ i8 Q; `9 Pend- d* T$ F, |/ i7 |9 T- t
# I4 K* P A6 l3 {' |) v# T& \* \' G
to do-trust
7 a9 a) s# i, ^+ dset trust-ok False$ L; M+ X F/ h5 {% j
% `) m# z. a# T4 k6 d" u, O! N m7 k8 G1 @
let max-trade-times 0
) V: b4 N( q, Pforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" R3 ^0 j5 M& f& U6 g6 U
let max-trade-money 0" K; y, c7 `7 C
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' n+ B, u8 K/ j/ l! a, C7 d ^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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: J' P6 O8 B# P
: C+ k& A1 C8 f. A' @1 A! Sget-global-proportion8 P7 I$ G# ?1 T
let trust-value+ X- p+ M& g& c- z( e6 o
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)
- m" L# h# f7 r' ^if(trust-value > trade-trust-value)
: q& C( F5 a' S$ ][set trust-ok true]
6 T$ M! r) I8 f rend
, z* g9 k8 L+ M* k
" p* V/ C1 \' M: v, ]. {to get-global-proportion
2 e/ n7 w7 k4 A4 B; m' D6 T& Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
~, B9 c" t' z9 C7 i[set global-proportion 0]
7 r1 \, o: }& }6 K, r[let i 0
8 m( e, k4 d3 Q6 c' u dlet sum-money 0
7 q, N+ N3 }) f8 y' q* `while[ i < people]
( }8 V& h( Z# m t[2 N n9 Y8 N( j, N) s/ `: ?3 r
if( length (item i
6 b4 }8 m* a% K( h[trade-record-all] of customer) > 3 )
0 P6 ]5 E- R. q6 i7 d* K[
1 r8 S4 n0 A" ^9 ^+ ]- F" f7 iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))% G4 _ i8 i- a2 }8 n
]/ |3 K4 o3 ]4 J* O3 V' |+ _
]
- k8 [7 i2 s7 n' N! t, Z2 _- flet j 0
+ e: \4 }( R% w c/ |let note 0
' J4 K7 E3 S) {0 W( v) c. ^" j# Awhile[ j < people]7 _; g: s( X8 x4 Q+ l
[( E$ B2 [2 m* I7 a" f$ E& { r3 v
if( length (item i. ]' }; y8 ~; d9 ]9 |8 _
[trade-record-all] of customer) > 3 )
) B3 C7 u8 u8 U$ C4 f[- M$ ~% ?" Q( l# f! `8 [2 c2 |* L4 ^
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) t% t/ ^4 d' L# o- a
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& Q& Q& [! D. c5 w. b+ X- T
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" d7 b- V9 d# |]5 O4 H6 d7 u8 [: K& r
]
' E% H/ f, J& S8 K5 e) nset global-proportion note
% i2 G7 ~( ] `9 D; G' d4 t]' C" J2 k% u5 ]; D0 |, P T: E
end1 V7 ^& V9 `8 I
" f* |# K5 Z3 g& Mto do-trade. D% q4 @! B- y% u
;;这个过程实际上是给双方作出评价的过程% d( g1 z( g- j- B' N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) p4 {$ M, p) [0 X) i% Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. Y$ ? K' x4 V' T
set trade-record-current lput(timer) trade-record-current
9 Y. p1 r$ q- @8 C4 n( R;;评价时间
" i% I, O6 Y+ u* {+ Vask myself [
4 x' i" l [1 Q1 V$ N- Nupdate-local-reputation
5 X7 P. w7 P) i+ `" J) nset trade-record-current lput([local-reputation] of myself) trade-record-current
' x" ^2 T# T2 c. ^9 R]
" T; f" s" W/ Dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 c, z! p% l4 A7 N2 n* N;;将此次交易的记录加入到trade-record-one中/ M, ~0 P9 n& Q. Z" U1 [
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 U# P2 k% Q" y) H& y
let note (item 2 trade-record-current )
7 K! F$ M1 `1 q$ iset trade-record-current( A' G+ r5 {3 H4 [# U$ w0 L9 R- r8 f
(replace-item 2 trade-record-current (item 3 trade-record-current))/ w2 F# I0 |- u3 ?: ]2 J D6 Q! t
set trade-record-current
5 @# J8 V0 a; o# C5 K9 ^0 G(replace-item 3 trade-record-current note). @6 g# w, ], {6 j
. ~( T! r* O J' h
* a: L" {/ B' eask customer [
4 h( {% ^7 R8 V( d |update-local-reputation
+ I0 R$ y7 y1 E+ c+ W1 nset trade-record-current
) ]5 M2 [0 ?$ Q5 N/ i4 {4 F" S(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( _4 G2 ` V/ L7 ]5 S]
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* k2 V' y1 Z. N# g, Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 [& o( q! g" o0 C" e* l# v3 b
. K7 u. K$ g: p+ V0 ~# |$ Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ ` T: c# l3 v;;将此次交易的记录加入到customer的trade-record-all中
# _: e9 q0 C6 _end( z5 t7 W' v% N9 K
9 Q% _/ {) ?! Z; e- c# x
to update-local-reputation
4 y b r. I' S/ wset [trade-record-one-len] of myself length [trade-record-one] of myself
# z& R5 w7 K2 |- E8 \
* [) W' Q' ~/ p0 c, T
% A4 t+ c: f) w3 o;;if [trade-record-one-len] of myself > 3
6 ]8 Z v6 K/ t9 W5 Y* n' Z6 u/ k) m1 h' Gupdate-neighbor-total; w" f( M0 W& _$ K2 w5 U
;;更新邻居节点的数目,在此进行
6 H5 W' E9 B' Y# N4 olet i 3# o" L9 L2 I% P Z: d" s) `
let sum-time 0# R+ n( L6 p' A- B) O
while[i < [trade-record-one-len] of myself], A7 f+ Q! q/ L" O
[
; E5 W1 o9 z$ K" _ F, J0 C+ oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% i* c' P* e1 D% W: p. g6 sset i/ `6 }6 ?9 a" G2 I
( i + 1)- v3 B$ v9 w2 G7 O0 Y5 R
]- {3 Q) f& a1 S. w. N8 e0 f/ Z3 H
let j 3
& J$ K2 U) n6 [; W; R9 Flet sum-money 0, d t8 @( ^7 K7 G# R8 x" \ f
while[j < [trade-record-one-len] of myself]
; q9 v" M$ M$ [4 y' y6 h& ][
+ c2 n# ?. y8 ~7 Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
8 {5 u' l3 ^7 b: U9 Nset j) m5 u) M! i! H- m6 X
( j + 1)" {4 \- p9 I4 L2 K
]- V5 F7 {- ` x( @" [
let k 38 M* ?" S0 t5 |; I5 _) ^/ Z
let power 0
5 y8 c n; }" A1 a2 _( e% o0 Q k! Ilet local 0
+ I- ?9 i: F8 \( t/ lwhile [k <[trade-record-one-len] of myself]
- C9 G9 z" V& e! z. m/ q[
: K; S. S4 C) p! F* Rset 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)
/ [+ v* ~* T3 lset k (k + 1)
' ^/ E9 M* l: b' Z]) }! v. \3 f# Y
set [local-reputation] of myself (local)" n" h. |: [" I5 A9 R5 U& X S' i
end6 x7 I2 @8 s/ e5 q
/ S$ \, p: |" f: [4 J& vto update-neighbor-total: s9 [7 k5 c0 H
' ^; w% ]$ |1 {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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e( Y9 p6 f+ @, A- }# F% Q7 t$ K
end
; A2 x* e4 s/ a' n, u6 h% g+ t! Z2 R# x! d) ?( ], ^: Y0 h
to update-credibility-ijl
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;;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。
1 n2 D# F6 c/ U& z. i) Flet l 0
8 V/ [: s& R# P2 Pwhile[ l < people ]
b. L8 z( R" p# i' {5 E4 K m;;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. r; Q1 c: O+ j& l. P* l
[
6 {" u+ T! B, S& \5 ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer); N j6 Z1 A; m% }4 R
if (trade-record-one-j-l-len > 3)0 \6 | O' u9 e \6 q8 f4 T
[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% F. ]5 w8 f2 M& g: C2 d
let i 3
" U& p" g. B0 m5 X& A5 ^let sum-time 0* F) p8 ]" {9 h. t' \: j# a+ {
while[i < trade-record-one-len]
( I& s/ T; S7 e6 K/ t4 u1 b& X[
# p/ e! Y' h0 I H4 Yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) }; m" _/ \4 y$ V3 g" z% k. ?
set i- y; c# z# l: s ^
( i + 1)
/ L+ y( i; W T9 c1 D' C9 k2 ]] Q/ N! X' ~$ H# }/ i# e; M
let credibility-i-j-l 0
2 x* r- J. l o" O, m;;i评价(j对jl的评价)
% u) D# b/ `/ ], e7 i+ f6 slet j 3: n/ e/ {7 U6 H
let k 4" {7 ] ?0 ]3 p; \+ S
while[j < trade-record-one-len]: D; l: c5 `" S9 J5 N
[
" `1 h, T, F" f1 ] }' G& rwhile [((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: n4 J% E/ ?& y
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)& D! N/ Q {- G ^+ ~
set j0 |$ V0 Z4 }( m! X- ^7 t
( j + 1)4 n' Z# V8 e$ A: g& ?2 N
]
- z3 V! | z' G; 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 ))
9 J) k2 G; N6 U A: P7 r) S0 `3 |$ t) b; S, u
/ Y7 `8 h/ s3 v$ L; D
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- |* b P1 M- z; B% f; [% o- [
;;及时更新i对l的评价质量的评价
! ?! a) e4 [& {* n$ lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% `3 n; A/ Z* I" ^
set l (l + 1)
, l( l; x- a( F9 C8 `! E, y0 b]5 e1 S2 n8 [: N: C' n% z# ?
end
8 ^) a v) T3 I7 w/ w1 X4 ]9 O4 ~! Z- F Q4 [2 K7 f i. t" u+ r
to update-credibility-list
$ ^8 o5 ]; i: c3 X. b# c d) ]let i 0
8 z" C* H/ j; Q0 W) Mwhile[i < people]7 i: g; y5 ~, e6 j" m5 F; J
[
x8 `7 ^0 `( J Z# Q0 hlet j 0! U# {7 h6 \9 F6 }9 ^! l9 ^/ i
let note 0
H, @ b( n) g5 h: alet k 0
$ M; Y9 z0 t! o2 C4 ^5 m0 ^;;计作出过评价的邻居节点的数目
/ A% Y" v3 }: C& q* @while[j < people]
6 b! w7 U' u' \$ M: P& ][
9 D- K6 P3 }+ \ ^. |; N/ N% U9 @if (item j( [credibility] of turtle (i + 1)) != -1)
! f3 s0 | l q% \9 w% b;;判断是否给本turtle的评价质量做出过评价的节点3 \, v7 Z Z4 Z
[set note (note + item j ([credibility]of turtle (i + 1)))2 }! |& }9 p, f Z) Z+ k
;;*(exp (-(people - 2)))/(people - 2))]
& z6 n) ^: |; x3 Z% v( u8 Q; S. Eset k (k + 1)
$ Q" e9 w$ L4 T0 h& Z4 V]# g- I ^' y' ^% D* d2 e( N+ T
set j (j + 1)2 Z$ q* Q( o) l. x
] {5 w) S" @0 u9 u: r
set note (note *(exp (- (1 / k)))/ k)$ @0 }, x, ]3 t$ N
set credibility-list (replace-item i credibility-list note)
, ~9 b5 j7 W7 T) _; E8 sset i (i + 1)+ O' e. p9 D& o
]. x, ]* j; Q$ d
end2 S0 V2 S% b- w9 F; E
+ f4 q; O6 g# p% Y" t5 F$ ~
to update-global-reputation-list
$ d: V" A5 L ~# v6 l llet j 07 r! B: U3 [" V1 q5 @
while[j < people]- b0 S/ ^0 ~- }: w9 i# ?: M
[* v5 k; r2 U: G; {! S
let new 0, n' o1 Z4 d9 }0 @' {! g) N3 s y
;;暂存新的一个全局声誉 k/ M4 `( g' ^ H" O4 V
let i 0& `7 i& w6 O1 Q# ?
let sum-money 0
; x5 m1 X( n5 M7 ?2 w" ]" ]* hlet credibility-money 0
: c; C8 U' }% z3 W& c- v3 T, hwhile [i < people]1 v6 p; E' }5 ?7 k% v
[- M/ {: T; U% d1 i
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& I k. O P0 r4 }# zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ R4 v) b% _6 U S) zset i (i + 1)( A1 _6 I8 ]/ T) } K
]
3 p2 m2 t# G8 p5 O9 z4 {. b! }let k 0
% v9 ?9 m/ H5 z5 o* Y2 Y+ f2 mlet new1 07 @2 M8 J+ r# a r' T
while [k < people]! |- j8 B/ H3 s5 V4 d5 ^$ S
[
* H2 p8 p5 E1 e8 r dset 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)
" p2 ~' @$ y$ D2 g: y$ S) i7 Bset k (k + 1)
: V+ [$ t8 x9 {3 C]
4 X2 g' |- ~% N |2 a2 L3 rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 a' j7 v3 @9 j9 S! \# d
set global-reputation-list (replace-item j global-reputation-list new)
7 ~2 f" F7 B+ Yset j (j + 1)0 \5 w6 t- D' E- E3 }4 q* T
]3 i; o+ j1 x9 u0 r
end
# M! ^8 O6 n' a: `9 Y q: }3 d' S5 e* ?, g' _( l" w" ]
6 z( }) h5 {2 b! W# K9 j$ U* |8 B1 G s3 n% r5 ?. t
to get-color2 k$ t1 [: ~/ P% J6 Q
: I/ g! t0 e, A x1 }
set color blue
/ f1 O" e1 a! {( Kend7 q" U$ t% i2 y; X
- s. j! b0 |& g' y ?to poll-class0 {7 o' R! S- E: u
end
9 s4 L, I/ m4 b* g% I
$ o6 `# R6 f7 A2 p. E" Xto setup-plot1
8 u/ i, h+ q7 K9 c8 V2 m
- b" ]6 j3 O! _set-current-plot "Trends-of-Local-reputation"
7 h$ [1 s% }. u- n- D( S) A& y
5 N" \/ U! c& n b6 `% M: nset-plot-x-range 0 xmax
" o" E9 S# o8 U8 ?; V- C4 A3 R" T! ?6 }' N5 r4 w& M
set-plot-y-range 0.0 ymax4 L1 W% n y: \8 A+ Q1 D& O
end# B$ U1 r! D# x. I$ p
0 O, [5 Y, {8 X, Yto setup-plot2
4 N" R! g+ Q. L0 B! |" T
: u! e! j0 [- c0 ]set-current-plot "Trends-of-global-reputation"
* @# s& h! h! b8 v. [
: u$ X! o+ M0 b* T8 k' jset-plot-x-range 0 xmax% S7 |6 d4 ^7 T% U
2 d) U" _: a4 n0 e
set-plot-y-range 0.0 ymax4 A: n% r: l J7 ^3 R. o
end: u0 @1 x4 V& m# c+ q! x
/ y; ?9 G, j9 s) B- I4 ~ K0 zto setup-plot3
7 ~' O* y {* ~: n' M4 s! a# Y
" C( y# ?6 F& J: ?set-current-plot "Trends-of-credibility"
( x# E& Z2 f. D9 Y/ V. p
1 g) u( p1 E8 B" a9 oset-plot-x-range 0 xmax
* O. p% d7 [7 X; ]( h4 u) O4 ^
set-plot-y-range 0.0 ymax6 z S6 f2 f: P5 n* O, L
end
5 s4 a9 c3 V- W: }6 U, t" ~
6 Q, R' g! t" v% t q6 d$ {+ hto do-plots/ f8 U- W* w/ X3 _! ^9 Y K9 o
set-current-plot "Trends-of-Local-reputation"7 z7 }! Y7 N# [6 R3 ?1 t
set-current-plot-pen "Honest service"' @3 @8 e$ s5 C0 _( O% X- [
end9 d1 S0 W8 P& ^5 t! j" {. f( O# l
( Z: g6 d5 A# I! _: _( \[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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