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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
3 b e- y. @5 A) R4 Nglobals[2 r& `! S9 C5 g
xmax
9 I% {5 K( R7 hymax, C4 M, o6 n9 E5 ?
global-reputation-list+ c3 }9 B. u: E3 k$ O
. G% N' L/ B% a+ X: s4 K
;;每一个turtle的全局声誉都存在此LIST中: z9 V, {0 ^# ~ w& l
credibility-list
$ m1 H/ B! I) e;;每一个turtle的评价可信度
7 n5 P+ K2 P; x. j8 l8 Ghonest-service
, C" }+ g: f7 m5 {" X, @3 l( lunhonest-service5 ~. y1 f6 P: r, ?- ]
oscillation: W1 A7 ^, S# ~) t0 M0 K; S y
rand-dynamic* s0 h7 _; P$ ^% l/ E% \7 g
]2 L. T1 r# U4 ]! O4 z% x) a
" g4 z- V- j) N& F; F3 I
turtles-own[
: q: u @) K. S7 C ^trade-record-all" E% P0 `# n/ q! @1 S$ ?
;;a list of lists,由trade-record-one组成1 J- P. U9 D1 V
trade-record-one8 g5 s# {& K8 Z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& z# k* j- i" J+ |. I+ Z+ K/ \ G. J, G3 F# a& {
;;[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]]( |0 ^! d8 N! c# X+ z1 g3 i
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]
) }4 O% G( P/ @; h' U5 } b1 wcredibility-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- J% J8 s) S. i8 N- N4 P, J
neighbor-total
S( m1 k/ e7 Z0 [1 i( u+ _;;记录该turtle的邻居节点的数目5 F' @1 C' S/ n) E* l6 U
trade-time1 K, e* y" Y* [* S; ]- ~* x n' U
;;当前发生交易的turtle的交易时间, Y4 }4 ]# ^. b: V
appraise-give& k) Y" Q0 N$ B% K8 c2 I6 l: @* F
;;当前发生交易时给出的评价! c! r1 b3 @9 k3 ~# U' ]9 q% M
appraise-receive# y. L7 `( c! {2 O
;;当前发生交易时收到的评价2 |- }- W, Y8 P4 O: J: v7 z! x& Z7 I( {
appraise-time
' S' _9 M) N5 R+ D9 k;;当前发生交易时的评价时间
3 ?3 A! x' W; @+ jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 z* q; ` p) ?' O9 e2 \
trade-times-total
9 W* U$ Q3 R) \2 I* J* a- h;;与当前turtle的交易总次数: i; d5 ^0 O" c l t& T# Y5 |
trade-money-total
: c u' h! |* f( j;;与当前turtle的交易总金额$ q. z, c$ w+ c
local-reputation9 n7 Y- X. E/ }4 V6 @0 _# b
global-reputation ^) Z& @; u! ]6 o# N6 O J
credibility2 `' i. [. ]4 o$ g! O# k' K
;;评价可信度,每次交易后都需要更新
1 A& N1 l5 @ vcredibility-all
9 M ?; T' f c' \( V( };;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
3 R# @; M8 \6 T8 ]7 x) {
3 ~* \+ i* f. Z E9 R* e;;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0.57 S2 @- c) m" l, h9 p7 l
credibility-one- G1 K- h c5 Z! Z5 n
;;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 k$ C6 _! p7 z
global-proportion
* f9 q3 \" a" O1 Q Ocustomer6 T l* t; f( b- E( B
customer-no
. M7 W% H9 Z5 k( etrust-ok3 P4 y' i( N9 I" C. l5 l F
trade-record-one-len;;trade-record-one的长度
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5 L' Q* ^" X$ @ c+ ?# c;;setup procedure
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to setup2 v1 l1 O) ^; V- M5 Y( B& s0 R
# D3 x" b7 ^) \( G! E7 v( L* pca# S8 W6 K+ w& U" u8 b; J
; Q1 F; M- a5 G+ `4 c: |) m/ l
initialize-settings
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crt people [setup-turtles], i3 Y: m1 Q, Y: e( r- j
) s2 d. e. U* C5 N
reset-timer
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8 I. O" N* x+ {/ s. D1 U( ]poll-class9 N% O9 b# J% f" z7 W5 D! ?, \6 N
1 \# Q- D* [+ X( \setup-plots
+ f6 E/ o6 j6 p$ t3 @( k8 f3 k. [0 X# h/ C( M
do-plots
8 K- W' w, u$ ^7 ]end# u5 ]+ r. Z" j% o' n1 y
" x/ Q8 a1 W& U4 L" Pto initialize-settings
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- j* V$ K. J* ^8 ^6 W3 ^1 Kset global-reputation-list []
2 W# u1 ^: C' e& ^$ r% X4 a( x. g! T1 h
set credibility-list n-values people [0.5]$ p4 c3 Y4 }1 A! v# A7 e$ b
+ \8 r" r! ~ U
set honest-service 0# a" t7 F8 y7 Q/ l2 h
U& o. }% n/ t
set unhonest-service 0+ f h, [ |. m+ o- K
$ k& a* `/ I7 L
set oscillation 0
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set rand-dynamic 0
- p# T) U' p# e& Z! N/ N% M7 T7 Lend
% C! j/ S0 K/ R+ q- A- l/ g) j6 f0 I3 _
to setup-turtles 4 ?: A Q# @; h1 @; ?$ m
set shape "person"# U; a5 _* y/ M) ?) c" @6 x4 N9 {
setxy random-xcor random-ycor
0 w/ ?9 V& A) k$ Jset trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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( h0 _3 E5 n' Fset trade-record-current []
/ B9 P* D3 }6 Cset credibility-receive []0 b% Z/ K& q) U
set local-reputation 0.59 N e9 s7 d2 a# l/ w
set neighbor-total 07 p' _* [+ H; H0 j& x! z7 o! J2 r
set trade-times-total 0
9 ^# {# I8 h( S- U! a+ C6 eset trade-money-total 0
: |9 }! i) H& b; fset customer nobody* X0 Q! _7 V% b
set credibility-all n-values people [creat-credibility]4 e) i% M3 I4 l0 Z- k" b! b" \
set credibility n-values people [-1]
: U: W3 _7 G3 Gget-color8 L& e& l& u4 D
$ \- F1 B5 x8 b' \4 l
end3 G& T/ x6 O& X
, Q% q1 [) n7 P" D: Q( J2 i( Tto-report creat-credibility
: B8 z- ^5 R* Sreport n-values people [0.5]+ j3 h/ p5 t* i/ P
end* a2 a) l3 ]8 y1 z
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to setup-plots
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2 O3 I6 F' D/ l5 ^0 l8 ]set xmax 30 A, q8 U9 }3 L- Q" C
) z e7 ^2 y7 Q* s' { i4 a7 n& Q
set ymax 1.0
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clear-all-plots
6 Q6 B; j, P3 J& E0 Y
! E$ V5 o2 r( M) s+ osetup-plot1
. J8 H' \" T0 K& _5 L
7 Y; k. c+ h" n. nsetup-plot2# N$ b! p. v! j+ m/ e: ]8 J B) X
$ `4 \4 t; S B5 A( t: S' Psetup-plot3
A, ^0 x5 g, i+ eend
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;;run time procedures
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to go2 p; c# v/ w. ~8 C
7 p$ D& A! Y. i2 F2 F1 x3 Bask turtles [do-business]
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1 H+ b6 }0 J( lto do-business ! b( Y& B# R+ f3 b+ a3 v u
) m2 o5 }: f/ @ R9 E4 K0 O
* X! w' I" A4 o- X7 C5 g+ C# Rrt random 360- r- R5 B1 X2 f/ N+ e( _
! ?% d; n. B9 j+ Z1 s$ ^! C
fd 1. X5 _' y# n) B6 G
% D; g, `& h; K) D$ u8 H _0 F1 I
ifelse(other turtles-here != nobody)[
" i0 c' i) E- X0 N+ U$ m5 }
5 o5 x7 t* H' [- ]& Aset customer one-of other turtles-here% Q4 L0 s0 x9 E( N
0 G0 x( Y0 p. Q c( R;; set [customer] of customer myself# J0 o( L6 {2 W8 ^$ }+ [
, J( F4 z8 ^1 r9 c3 R# fset [trade-record-one] of self item (([who] of customer) - 1)) X/ ]5 a9 H+ @5 Q1 `
[trade-record-all]of self6 x, w) _2 r; J5 @3 o" R
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 E( v( w% {: X' L" g
9 @* ]/ k+ Z& U9 o% b) Y5 y& q# Bset [trade-record-one] of customer item (([who] of self) - 1)1 J; V, Q! `8 V. [8 C8 t
[trade-record-all]of customer! F. Q" q Z( Y5 ~: X1 b8 O
' ?% t- ^& r6 g( { B- rset [trade-record-one-len] of self length [trade-record-one] of self" Z* y/ r; }5 U+ H; e
* `9 x7 N" n4 }/ \
set trade-record-current( list (timer) (random money-upper-limit))
% g$ M2 @ y0 Z% }/ _1 w& o( }
( Q, U0 m1 [* w1 P+ x1 F$ r' V5 Iask self [do-trust]3 ~) u( p, X% O; z2 s
;;先求i对j的信任度 p3 p8 _, C3 l& E
: Q# ?8 ^8 w B3 V% wif ([trust-ok] of self)
+ D0 _0 p$ V" O8 c* m;;根据i对j的信任度来决定是否与j进行交易[; m8 n. g6 G1 ]- h) D5 _
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
2 |* W5 ?/ R7 d1 t; i; {. j: U3 N3 {: ^2 M, g1 u' y q$ {6 c8 G
do-trade
* k8 q) g- r. F4 q$ U0 w* i0 w k4 y. a8 A$ p( O: O' c
update-credibility-ijl l. n0 R$ w5 c6 i( z
9 I v1 e9 k6 W- \+ I* Aupdate-credibility-list
' a7 {: ^( g$ W
7 f. q( s! |9 ^8 e0 L; e$ K5 f+ J
7 I/ O8 K; I6 G$ q V5 Xupdate-global-reputation-list
8 b. c8 j" a$ p) u8 N& e
9 }4 { x% I9 T' c" epoll-class" O1 M6 \. }6 t, X, _( i
0 j! q4 [: v1 {6 e% Q$ N5 N
get-color( W. C4 C, B8 }7 Q9 M
5 l" s& l" }* x/ S. {, u. O]]! v6 g, n- P, q. h
6 N! p+ H: t e;;如果所得的信任度满足条件,则进行交易( r, Y7 V" a$ @! f( Z: ]
: \8 [6 z* h# M[
1 R: w; f' h9 n) p* U9 x& y+ k0 r8 h, G1 L2 J
rt random 3600 L7 k v3 \$ y/ |7 \
- g2 _9 E- d' H
fd 1! y6 c: n( c& J
( h l; T4 D T/ \9 J f0 m( ^
]/ k4 @ K$ k* a
! ~' J8 K4 U( Z O' p0 kend
: ~! u% I( f6 I
$ g' P2 ~; E% `( H5 jto do-trust ! h- H/ w1 \! A( t! f& g5 t
set trust-ok False
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let max-trade-times 0, t3 x( o" S- D: E( o9 u7 l
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" [ i2 r6 Z: X& _
let max-trade-money 0 @1 I! M7 ^! y8 K/ z, Z6 p
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( E: H, V0 f4 ^* s+ u8 p) S; V
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ q5 a7 A l) Z C% I6 ^' f
, ? s1 _) q, P+ B# ~
! j. ]& X# M- a2 m" G7 ^
get-global-proportion) j ~, g" s6 A
let trust-value
% A& c. G6 ^8 |* w/ N% i5 J+ @8 S {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)
5 H6 y/ C4 _' g" Q* Cif(trust-value > trade-trust-value). P. h2 L( r% Y" N
[set trust-ok true]+ f5 i! h* x: s! `- S3 }( g
end# B% A5 N0 r0 {6 p/ n( S o
9 B% g. Y; c# s% L/ |9 w0 R* y
to get-global-proportion
: f( {! [# T" v3 b0 K+ M2 fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 e7 i! W+ N* w7 X' f ^! o: D
[set global-proportion 0]
& w0 F( l4 Q! L/ i6 J3 i[let i 0
3 ^. }$ K1 A; A8 |let sum-money 0( a/ l& ^" F5 B, e1 b. L
while[ i < people]# G) m; p |& L, H Q. X" @
[, Y. }7 J4 Y3 X* f1 ^" K' ?( A
if( length (item i5 n. V9 H1 ]+ g
[trade-record-all] of customer) > 3 )+ h$ a6 ^9 \) b' P4 H" R7 ^
[
2 F! n! ?: N0 ]. @) C& O8 wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* [0 ~7 X" ?9 A0 S9 r) S/ p2 H$ g], F; O+ g% Q$ D: t6 ?
]
' Z% w& p; L l8 I; E5 X2 Wlet j 0; W- Y. L. n1 }/ \6 P+ O+ ?
let note 0
8 V' \2 [6 J* r# x7 B- Qwhile[ j < people]
4 J' Z9 F: g1 ]8 h; `4 O4 y# H) I9 ~[
; o% J6 G" _6 i# x. G! B! gif( length (item i# ]$ L7 G' A$ Q- f( U1 Y
[trade-record-all] of customer) > 3 )1 i3 l: l, @$ A% {/ X# ~# E
[
- M% @& v* s* j) F7 G% f1 ^ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ c" D' B! o, L- \3 h( l
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) `1 F1 p* C1 E1 @9 W6 q( q! F2 F
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, [4 X( C& l" v]
* P' j; ?. ]9 [* a1 []6 j$ e1 T: n% g& ~3 q
set global-proportion note8 p, |8 k3 X6 k" y; P. l
]- |. j/ i1 B5 t; n! c+ G3 b
end
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to do-trade) @. W) H v0 x" J
;;这个过程实际上是给双方作出评价的过程/ b7 c4 I7 s- S& P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 t; h& G+ n; Z4 B( |* s1 cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! w$ X3 _* }7 s3 }set trade-record-current lput(timer) trade-record-current" h9 J$ G$ |/ l( L3 w& }
;;评价时间
2 y A1 o/ H" ?" D6 [6 Yask myself [
7 Z0 y1 F, V3 V3 [update-local-reputation% b. I( p& _8 O9 v( c1 K
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 w! O0 v- q$ H4 f]
$ v8 h' y# K7 p: R! A; i' Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 l: i" P$ J+ }5 f% K7 V;;将此次交易的记录加入到trade-record-one中
$ [, l, ?9 _8 z3 |1 {set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ j) A9 Y9 ~9 u2 Q: n% B' _3 n' N+ _
let note (item 2 trade-record-current )5 z! n. W1 I6 k6 y$ D8 A
set trade-record-current
4 @& g3 l2 ~- b5 Y: Y. |0 k; L1 k(replace-item 2 trade-record-current (item 3 trade-record-current))
! p* U! O+ \1 [2 w& c2 ~- R3 X; Eset trade-record-current
+ R& a. s! Z ^: F0 r- z7 ^(replace-item 3 trade-record-current note)- L9 R; Y4 S, U
6 O( b+ {2 g7 I! I; s3 j7 d: a y2 d4 |! r' P7 n- N
ask customer [
" i7 ^* u. S4 P) C* v0 |, rupdate-local-reputation$ _6 b) E, i0 |) [% L
set trade-record-current4 q8 F3 h9 p! G$ t% p, i0 _9 N
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 P m9 [- x- z: A
]
0 C, e% f5 R' u
9 l& H+ h' W5 Q; A& ]/ w$ [
* G8 h/ W5 g6 d( a( h" a o4 sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% G8 T' n$ r1 n) A3 W+ W4 T2 Z; D7 w4 a) u- i
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 }) Y q+ f$ }1 E. |;;将此次交易的记录加入到customer的trade-record-all中
; ]/ d9 G4 |- {) l) g5 Q( aend
1 e. n$ m4 F0 W1 x) u( g+ f' Q' q" ]0 I3 `
to update-local-reputation* B- v+ X! {! l3 Y6 D: F4 G
set [trade-record-one-len] of myself length [trade-record-one] of myself0 X" w" X8 d3 u6 A- k: q
; {6 n0 X! o9 {+ H X8 E8 u
" l- {$ F3 o: F. v/ V
;;if [trade-record-one-len] of myself > 3
. F: D" ]+ \5 C) `update-neighbor-total+ m/ x$ |! q) G
;;更新邻居节点的数目,在此进行4 \8 {: b+ }* [: b' g( A
let i 3& d7 ]! G# D) y5 k; @
let sum-time 0
7 d# o+ w5 T9 N6 v& a" k0 [4 L* |while[i < [trade-record-one-len] of myself]
2 o5 Y3 c+ X8 V: t) F[
0 S4 n6 e3 ~3 k- c: N6 Dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: ^% ]" f5 T/ a$ }8 Lset i
8 |( `% }, i6 w. |( i + 1)
5 a [/ Y) e3 r6 M$ \1 W6 T]% X4 K5 F+ T$ {9 u, w
let j 36 c+ a" ]" Y8 p# N
let sum-money 0, Z- ^. Z- _: x7 Q0 V& _
while[j < [trade-record-one-len] of myself]' \! e8 H" `0 S- t' U( P& C
[- @8 n1 z% `9 x" u% ?
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)
* W* \, u/ @ R5 O- e8 @set j+ s) n/ Y9 j% Q. f
( j + 1)1 ~0 B2 f8 q3 H V: y- W% w5 c
]4 f; `6 _8 N8 X( Z/ O
let k 31 B4 I( F+ k+ C
let power 0
' ^- }' \8 T* i- Nlet local 0
" E: S( v# ^% ?: ]& ~9 Zwhile [k <[trade-record-one-len] of myself]
# q( p5 y# U/ y f8 g i/ k[
a4 s5 c) I' F2 m( w0 |- Gset 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) ' j! @. E& R3 {& k! v0 ]& f
set k (k + 1), x6 V1 h" o0 _3 {! ^
]) U% z, @6 N0 }2 }+ w6 c
set [local-reputation] of myself (local)
, H4 y5 V; K6 i% ^7 P. s! J% |: k {" _end
: A2 }6 p, K. E
$ R! _6 h! r# U8 t, F' Sto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ a8 B1 B. I0 x# p5 {+ n" W" E( _* A+ t% |; Q) t! }8 ^
2 u& \( W$ Y9 y/ ~/ e Yend
2 [& s5 Z6 z1 M t; l$ V" a( Z8 d7 P5 v- ^
to update-credibility-ijl
* H. u3 i/ N) \, b1 r" k! E. C$ O, w2 e. ]8 B0 l6 h- r
;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。
5 M3 R. V+ p1 j# i2 hlet l 0* p; f& `& g+ n7 e' H
while[ l < people ]; M9 N" a& k2 X, v5 j
;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价3 n& J" D' d; F6 L# ~' F/ g4 E: n
[
1 {5 @3 N% N/ c: O: r1 D" Nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer); K2 T2 y* P: H. [7 k+ A6 Q
if (trade-record-one-j-l-len > 3)
- B+ C$ m& |$ D9 ?5 K& l! E' O/ @# U[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one$ Q: O& w& U5 y2 h! D- [+ W# ]
let i 3
* L9 {& p, c- o" N' g/ D1 [/ ~3 _let sum-time 09 e, ~8 h7 A" R* {- r1 }3 r
while[i < trade-record-one-len]+ n& r a' ^1 ?
[9 m5 B% `9 u6 ^# C+ _
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! }* T( R, S9 ^, `
set i( v9 f6 n. N5 D
( i + 1)
! `2 Y. H0 q; D+ j% I]6 m$ `8 P c& U: J% h0 k
let credibility-i-j-l 02 ]& k' N% t+ p. F4 O, Q, P: |
;;i评价(j对jl的评价) ^( I: E; @7 F; r4 X T
let j 3- R, `4 v) ^4 z
let k 4# a" [% _, x- D+ a6 h. w
while[j < trade-record-one-len]# m! e$ B. j. y+ i; l. H
[4 d, N* ?$ V3 j i, G7 m
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉6 O/ G% {! v4 c2 x
set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)0 u% o) Q7 V! T6 G* Z
set j$ C( A, Y. P! `# o4 s3 X
( j + 1)
( }3 i, I5 P8 w1 n8 }' w/ k]
- O$ u2 n4 w5 \) cset [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 ))
* {" E) {$ g/ W/ z0 M8 z1 J/ F0 y" H6 r$ ^1 s* F! e; m) q
# I, L* F9 ^% d6 R6 u% C; zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# ~- W, ?( S( [5 M8 F+ \% }* q
;;及时更新i对l的评价质量的评价
$ x" \6 C) X8 _3 |8 ~8 xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 ` d0 v6 f f
set l (l + 1)" N9 R1 _3 _) A% [4 g6 X7 O3 b7 y$ Y
]
. }3 h. {. q! l. u. _5 Wend
% ]3 K5 [" E \' v/ t
6 C& \# d( c, o j. Nto update-credibility-list. H5 {( X% t% Y8 v. X
let i 0
^, r9 B/ N( [( L* |while[i < people]
7 D$ u3 o, y# a: a/ ?, |) ][5 ?( e# T8 J) V. K* @
let j 0
$ e+ Z! [7 S5 _' `+ H9 @$ {let note 0
+ b& [- @3 O2 llet k 01 J" q& x% Y. y$ t
;;计作出过评价的邻居节点的数目 V# z7 s ]) `
while[j < people]
- C% ~; D6 a; [3 E/ a& j- Y[1 Q9 s7 O# Y9 w' M
if (item j( [credibility] of turtle (i + 1)) != -1)
9 y8 f% F" I/ K: O1 G, C;;判断是否给本turtle的评价质量做出过评价的节点
" ^8 r0 a w `$ \- _[set note (note + item j ([credibility]of turtle (i + 1)))
5 ?& F* n4 t8 J' R$ J;;*(exp (-(people - 2)))/(people - 2))]6 k7 z' F" A0 F( d8 u! v" x
set k (k + 1)* h d! w z5 C! i9 j( Z1 k
]
! |$ r+ [6 Y9 Y8 t: Yset j (j + 1) T( [( `4 w% S
]
! z% g/ b U9 b. l+ Bset note (note *(exp (- (1 / k)))/ k)% s0 A9 B% {' h) `* z
set credibility-list (replace-item i credibility-list note)
& s+ q! x2 t2 A0 bset i (i + 1)- h8 n) H, U- R* x r6 V
]
9 ]! y7 x0 e5 V% Iend3 o) `3 G3 F; m2 x
* l4 y4 K( ~: [% q7 D0 N
to update-global-reputation-list( I/ @0 u% u$ L& a1 {7 l
let j 0& i* ^* l2 t) |, x" ^
while[j < people]
0 Z/ _9 _" i& o1 N! R( R[
5 c3 ~- d' Z0 s- k, w) Llet new 0
* @! c2 A+ r& g7 }3 A' H;;暂存新的一个全局声誉
9 u# r5 E# o; R! s/ S% d5 {let i 0& D7 @" y9 i4 k! D1 S$ B
let sum-money 0
8 y. Y9 n6 M( a( ~9 |) `let credibility-money 02 y6 A$ y4 S% Q* v/ b
while [i < people]+ N8 A' w# }# ]$ S+ O. k
[ V/ L# V% p& X; s& ]4 b7 s
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 T. i" d' Q5 g# `, `$ T. u/ f' N
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% a% S# Y9 c: N8 [* r) l
set i (i + 1)1 H$ t7 U4 x. N( r# U6 @, w7 g
]& @7 u- }: g, R6 N: J; d; J( a
let k 0
1 ?3 `3 u: B. t( Vlet new1 0+ w; s5 c; m( \4 t4 m; n
while [k < people]
4 Y+ i/ s: J+ x8 [- K1 K+ b! s[% x# d$ r4 d5 W7 B+ q
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)
4 p5 T) J; I, Iset k (k + 1)! R: r, G H* W6 V
]6 {& z7 R+ V: u8 N" m
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , e) o+ B1 ]6 N6 {3 t/ ~
set global-reputation-list (replace-item j global-reputation-list new)
% k) }7 Y, _3 a# d, tset j (j + 1)1 l8 D6 G2 }2 ^2 j* g
]
+ u' {0 J( l0 l7 `0 d# b, Cend& k3 ]4 X! c( d/ U& n
, u. `6 z6 {) P. [* m$ i
% U& C3 j; e8 P1 o% f5 n- e& x F! R& A3 c# G
to get-color
7 N1 m R# ~- Q* H6 S& ]' P6 S1 L) @8 O
set color blue
6 X" b* V# S' H2 M( q- N! @end; n& l4 q3 y# G) d: d
5 G \2 s( t, u% u
to poll-class
& Y0 |% Y( f# |, O: mend: |$ y. m h# p- p: {
' J, {) y- X) \& Z+ v# R3 @! q
to setup-plot1- R+ x) K# o0 a
- Z) F* [& E! M& j& d. P+ @set-current-plot "Trends-of-Local-reputation"
8 A7 {8 Q) p& c5 X, w& S3 F
1 Q8 C) U" X+ G. _set-plot-x-range 0 xmax
9 l" _7 P* Q2 v, d7 X$ e$ e7 R
2 i0 c" J- t$ v# b( f: }set-plot-y-range 0.0 ymax
6 g4 k* f2 g( I! D' ]2 L4 Mend
8 C, R# e+ J6 V& |; }+ _- x4 o5 ^; R( V9 Y4 `
to setup-plot2
1 J1 m2 _# ?% B' [" |: w
2 P1 ^4 h m, lset-current-plot "Trends-of-global-reputation"
' t8 j( `+ e8 v) F/ B8 R2 N9 ?! ?0 p* p& s5 n
set-plot-x-range 0 xmax/ \# R: o' q5 o; s6 H6 B( t
! F! P8 ~& F! m9 q- k/ Fset-plot-y-range 0.0 ymax
8 \& X" S- C$ q- c2 }end9 V$ H( ^/ a& }% |4 F/ c0 y* D
% G" C' s1 G- K! k: S8 Lto setup-plot32 L4 s2 W V0 r& E& @" l
8 J) A9 f7 N: _8 k% q- \9 U
set-current-plot "Trends-of-credibility"0 @4 n# h8 G/ K: {. e% W
$ ^! P3 I2 r: A; L
set-plot-x-range 0 xmax' \6 }' w3 w! m7 Y. V1 G
; `0 f4 Z: D8 J2 h$ F
set-plot-y-range 0.0 ymax8 k( s& G, I0 Y8 Z
end3 A, M$ J: U( }1 L: e
3 i) ^ \+ q6 j, u
to do-plots
( K% U( B! D. |& @( r5 R7 Hset-current-plot "Trends-of-Local-reputation"
# Y1 P0 D3 L# s* a' Z. R$ ? _set-current-plot-pen "Honest service"
+ p* o2 S2 w( d* F( J0 ^" Wend
- e$ \5 |0 u& v3 N7 F6 h0 Y, ] U6 z, X/ A, Z4 [2 `
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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