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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( V2 ^0 I8 [1 t* @ I" w. Y. m
globals[
# ]0 q. Z' h6 k' U+ }* fxmax
' D. n2 w% H! s0 {4 fymax% m; W) t9 v4 h& u- K; ?7 A7 k
global-reputation-list
2 n) o7 l" Z6 _
, X6 }; |1 K1 K$ n P; i, \, W;;每一个turtle的全局声誉都存在此LIST中
8 G$ f$ B6 H, d ?3 F" Mcredibility-list: v9 U; u/ a+ T2 D4 E
;;每一个turtle的评价可信度
a# H* \/ C: N P& Phonest-service( ^5 ?$ x6 z5 M3 L; u3 {. f5 Y2 {
unhonest-service. H4 U5 M8 {" T+ _
oscillation- ~: P+ F! k! z+ X. q) D( n
rand-dynamic- ^. L/ n. O1 t9 ]& E3 D, ^' b" q
]
9 G- n) B" m6 h# c T
5 l; L5 x* |/ B% s9 Hturtles-own[
, g3 b! j; i3 t- |8 X4 F! Jtrade-record-all3 X8 s* ~! g4 b" j9 X6 F$ o. b
;;a list of lists,由trade-record-one组成- H, x1 k' ~1 r @' u$ {8 t1 t
trade-record-one
! }0 s' u$ P! Y- j. p;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 `- i6 c' q2 p0 I. D$ v
" T9 h' p/ {7 q% x1 Q0 U! J$ `
;;[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]] I' H. n5 l: M( c7 g6 _% B
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]
9 Z1 t5 E5 t. k7 W* Scredibility-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' g( P( \) _, K+ d" S/ x5 E
neighbor-total
9 _6 j* G5 y7 |! L" K9 y;;记录该turtle的邻居节点的数目 }) e' S5 _/ s u& m# F
trade-time
, k9 p( Y, h/ s1 `4 e P& I;;当前发生交易的turtle的交易时间- m6 [6 s+ U5 |
appraise-give) V7 H4 f* y! V; o; q
;;当前发生交易时给出的评价. w3 ~( z7 A: y2 o7 e; b
appraise-receive& E j# ~- |' u- l7 ?8 \* d
;;当前发生交易时收到的评价
7 ^3 g+ R+ p3 H9 oappraise-time# i' F g6 m8 p2 E- N; {" L
;;当前发生交易时的评价时间
7 E) C8 { {; N' y$ e1 s1 i9 e7 Ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 B$ h1 y1 b7 g f* K, Ztrade-times-total
+ K9 N, u# t+ f; d: N;;与当前turtle的交易总次数
) @' C L6 {/ i" Ntrade-money-total; N$ k- C; J" P8 p3 v5 E
;;与当前turtle的交易总金额9 V* s* ]1 ^+ }/ w0 m4 O
local-reputation2 K. P# X( i. ?0 w- y( Q
global-reputation2 A& `$ O% o, q5 L
credibility
8 H8 O- w5 v, M+ C, Q3 ~: ]- d;;评价可信度,每次交易后都需要更新+ c: u( q% g w! G1 l) }" e/ o
credibility-all
, J. A' E$ s* p: R$ e( {! p;;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
# Q0 {$ `3 v9 p
+ J6 a/ C" [; Z' y7 M7 E4 L;;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
7 {# ^& g O* ~, e. wcredibility-one/ F4 I" C; V$ p7 c0 N6 }
;;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
# ~% E% u% E7 Jglobal-proportion \ E3 _7 Y4 O. @- j
customer
+ Q. b" U4 l2 y+ i5 Rcustomer-no2 g5 f0 K$ |' o6 v& q
trust-ok Y5 c2 j ~8 v4 N+ O
trade-record-one-len;;trade-record-one的长度$ w ?5 Z' _% W8 z% r% A' z5 V
]
9 V! Y4 X! n+ ^2 S6 L
! M9 K8 ?# N- `& l* V' g1 P;;setup procedure. {2 P8 _8 X. e
( b1 c! |, L- m+ I D- r( Q/ Ito setup- r' A5 R$ V1 _+ ~# N8 }
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ca
4 G( U' E2 Z7 n9 j
+ ]+ D: V: ]: d( Ainitialize-settings
4 f; s0 o" x/ k7 s. M! W
3 G1 c8 ^& t \" w/ M; W. Tcrt people [setup-turtles]
" w3 |% y6 ?% Q
- a8 d+ O& ?# L; V" j) h9 y$ @reset-timer
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poll-class
2 d" I4 Q0 H1 ^ F6 {
4 u9 p: j! O: c) v& t$ Y4 Fsetup-plots
5 z3 m( `0 T, h
0 t8 s, q* k& Ido-plots
2 q1 f/ x) @( s( w+ Nend# }" M) J% C0 F2 j! Q
( g4 \( g$ L* u2 f4 v( Q
to initialize-settings) y8 n/ T0 Q0 y2 |
+ N2 o! B9 B0 h3 R/ pset global-reputation-list []+ K$ Z# {# A g" O" ~& s
2 X) F& U2 w* e2 Y' j4 W( eset credibility-list n-values people [0.5]3 C5 i& x a. s7 Z s9 E
' f# ]* q* o0 o; c- H
set honest-service 0
9 a, J$ g& E. N5 R/ g3 Z) V# {
0 x1 Z; r0 ?6 q- }1 S, K5 T gset unhonest-service 0
, }" o) i3 r- m0 [
/ q) `* e: o7 [, Z( L" t0 dset oscillation 01 p: H6 l8 W- G) x* w
" ?! r7 l+ m9 l
set rand-dynamic 0
* K# |2 E3 g0 _8 P; h: hend/ w+ r, p/ z4 V5 a
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to setup-turtles - I: h" e6 h( b: ^5 h {
set shape "person"/ g$ e# K, e( N4 d& s
setxy random-xcor random-ycor
2 x. f' o; c% D0 n/ pset trade-record-one []
w- o0 i7 v3 f
8 P- \! N" s3 J* Nset trade-record-all n-values people [(list (? + 1) 0 0)] . o7 a9 i) M& x) I O7 |- _
8 {: h0 `$ W5 \! N
set trade-record-current []
) n5 N, j: D8 Q( Q! Uset credibility-receive []
+ I4 w$ b$ s! ?1 s6 x3 Gset local-reputation 0.55 f1 Q/ G& e# [ b; T
set neighbor-total 0
) y' w! S- G) N3 }" m$ }( f- @set trade-times-total 0
/ T/ x+ }- h# j) ]* A, ^5 q* Xset trade-money-total 0. i' Q2 z: K& a7 }* E0 j
set customer nobody: d' R9 Y: A& k1 y
set credibility-all n-values people [creat-credibility]
3 o2 G5 G4 B9 n/ w: Qset credibility n-values people [-1]0 m2 X& Z y( A( ~) i( L
get-color: N" r& m: x; z2 K' u, t
7 d6 d! V7 l" T D( U) [7 ^
end* z( Q0 K: a" ]( w# P: y
3 Q& C9 ^6 y6 n i k
to-report creat-credibility$ E0 g& j, a8 I+ t- ~
report n-values people [0.5]
0 N7 p1 N' L i% q) t8 ?' V* Eend. l; g0 v3 j- B& o/ O
% o" |) g4 l" L2 s" A/ Ato setup-plots
+ R8 H' m3 q/ Q4 T4 S# L& M' L) q% A
set xmax 30% b5 i2 U& O4 e# x `( I6 V8 E
0 d1 E' S4 ~* r# o/ r& e, U
set ymax 1.06 _2 c3 }2 k/ |3 W
) o8 \& o H) w Q+ l& C, q; L
clear-all-plots
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setup-plot1
4 O) m- `. L! }# [/ c
- X6 M7 I b4 y3 ?% R' bsetup-plot2
t+ q* c+ o) I% ]$ w5 v4 J$ N0 f" P; |. X
setup-plot3# T# X9 X! n6 \* R5 z0 `+ P. B
end, f& |- F; {7 ^1 }- B+ Y! }
: n0 p9 M5 e4 U: q
;;run time procedures
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( Q8 u( ]7 d7 l% p: Q& {5 Gto go
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ask turtles [do-business]
1 }+ q; {* u7 @6 send
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}) I7 U- q& D: N$ |to do-business
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1 ~0 T. }# _* v9 qrt random 360
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1 {- f1 [- _" T# `- D& l$ h9 m+ Ffd 1& d% }) `0 j- ]. Y8 N2 e
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ifelse(other turtles-here != nobody)[+ ~" {- O9 r5 Q$ L7 Q; H
5 t5 L/ n6 p' w5 l$ \0 e3 M K0 Y( z$ \set customer one-of other turtles-here& x% f0 z$ a' g9 Z9 V T: i
4 j& Y# Z1 L# G& d$ D" |: T;; set [customer] of customer myself0 z0 S c$ W% ]# t n
6 }1 j: E p2 }7 C9 \
set [trade-record-one] of self item (([who] of customer) - 1)
! X7 Z+ N) P9 A[trade-record-all]of self
4 E. K% x3 \; h, p7 M;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: N: k/ y0 `: D% N, {8 A
$ ~* L9 G6 o+ [5 U' I% v
set [trade-record-one] of customer item (([who] of self) - 1). M; m }6 E; {! U" P" k
[trade-record-all]of customer
7 y2 m/ I9 S8 B1 Y( `
! ?$ c* K' T4 z' ?set [trade-record-one-len] of self length [trade-record-one] of self+ X0 \9 u% b, L
9 ^3 x6 Y4 K/ G( L$ iset trade-record-current( list (timer) (random money-upper-limit))
' w' l- U7 r& R4 b9 o
2 B, p2 F ]5 `5 l: p9 [. vask self [do-trust]
. _: W M, J# R) k) X: n' a: R;;先求i对j的信任度) C* g4 O7 \3 U. C8 q
! H0 T3 s+ f# d( ^9 V6 pif ([trust-ok] of self)
6 i$ |4 z, Q' Z4 p. v;;根据i对j的信任度来决定是否与j进行交易[# ~7 j/ L; R' S0 t; J
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[" r6 ^1 F1 c/ t8 t; A
- a5 T% u- f' e( a! @
do-trade
+ f: A! I3 I: j. t$ n0 w, C& A1 A- L) c0 A( c, G1 k3 T
update-credibility-ijl7 O) S* n5 I8 g9 \9 l, S- s8 P
( _% Q+ t0 V8 V2 i% w7 Qupdate-credibility-list2 b1 o: @ O. i0 [' M5 D/ j
' D1 w# E; m! e
- E T2 U+ c. m( v* nupdate-global-reputation-list
. Z3 v! z6 o% t! V; [
8 u+ j. W' Q r8 c* R! c( R% wpoll-class
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get-color
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]]( f) P: m4 C5 y T8 x
' ]# b( Q; D2 n; i% b* V
;;如果所得的信任度满足条件,则进行交易; Z) D+ m+ m+ s
7 e# `1 j$ q; l' b* v
[
4 w8 o0 c' u- Q" E( c
7 R3 r5 y' I* P) }; Rrt random 360
8 V% w$ s# x2 o0 K: C3 Q; ]: c3 V. i; `. M
fd 1: T$ l2 Q x0 o/ d9 X/ h/ B
) I g( a2 [3 |3 ~* f2 Q
]6 C* O9 F4 K0 ]. I c
, d; X2 A& }( G" O. C* Yend
6 R" _; t3 A! e3 Q5 ]/ [5 z' C% C" K7 Q' k% j
to do-trust
! o/ A0 _9 h9 M9 xset trust-ok False k: s0 Y- ^% e: b
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let max-trade-times 0, z5 S" A/ {' [/ f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( s$ R6 A" ]- R! _. D' |( Z
let max-trade-money 0
* \. R6 [6 r5 j8 V) F/ dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' j" Q2 e9 x% ]3 R, {0 x' C9 W4 _let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( `% X1 ^+ z( T2 L0 i1 h. P. t" W( K2 b+ F
/ _+ O+ [0 \: u: jget-global-proportion
( F: k7 r: Y1 ?let trust-value, j. _+ k: O) s6 I* n
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 d; r* @! C j" i0 Iif(trust-value > trade-trust-value)
+ i/ M+ E/ w8 V) H. A1 x[set trust-ok true]1 O K- {% P6 \3 U2 @
end
% `9 N, j; l, l2 z1 j. d! a( ]
3 ~9 F: z6 t0 w% H; q- C% Gto get-global-proportion4 }! Q' p: L" m9 h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)& R, d! F) V% ^( o& W
[set global-proportion 0]
! v% Z- u2 o$ o[let i 0- K. t8 }& w7 U
let sum-money 04 W4 h4 f: d9 V, o# o3 `6 B
while[ i < people]
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6 ?+ t. B0 L: c4 Z/ J- |, s5 m. f. fif( length (item i+ w, I9 k( m6 w- u b
[trade-record-all] of customer) > 3 )
( g3 e B1 ?/ ]/ n+ \* b: [[1 g c" i+ z0 J" F5 l7 Q7 q) I- I! I
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" i% w) h5 C5 E( h/ j9 K, k]
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let j 0
; ]! c/ K4 Q! R. }8 Klet note 0( P0 p! Z% k" G( ^
while[ j < people]
/ @' D3 m7 Q; Z! t1 h[
' _: N+ _" ~: H+ C I4 |- M3 Vif( length (item i0 p t# |* g' I% L! ^% I, E1 Z
[trade-record-all] of customer) > 3 )
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ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 u7 u3 u4 R' D
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
/ b& d( t2 `# {0 c) _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' ^7 a. @* ]( w6 N3 R9 M]' {! [" s$ B! W1 Y) a! V! U
]
3 v& Y8 ]. {, h6 L6 Wset global-proportion note# ~- w% l7 j1 F
]
$ y4 ~5 I9 V- R) A, z" C* Oend
8 T' R( f! r+ y! K* o, o9 F! p: C/ r& j
9 }& y l! O0 X ]to do-trade! O: b" @5 K3 M2 K
;;这个过程实际上是给双方作出评价的过程
: q% r) Q c/ ~) I C$ w0 f( j6 kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 z9 V2 c2 |9 w- z ] |set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, w5 N: q2 U; ]& ?
set trade-record-current lput(timer) trade-record-current. {8 Y) ^# n) b& j
;;评价时间# t/ P2 }) N2 K% \ C: l
ask myself [ D1 ]$ ]6 j4 U' L; z
update-local-reputation
3 b! I* |8 u+ x1 Nset trade-record-current lput([local-reputation] of myself) trade-record-current8 j2 b0 T1 v4 f. c* K0 j
]0 k7 I# H6 L1 K- y* u5 ]
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" B4 i% ]/ L' N;;将此次交易的记录加入到trade-record-one中
8 A; y+ r1 z, c. f" {& J Aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 Q) g+ u7 D$ \
let note (item 2 trade-record-current )/ I! H) A: ?8 v |) \
set trade-record-current
- Z% } ]0 Y* R(replace-item 2 trade-record-current (item 3 trade-record-current))
0 W( @- Z$ Q# N! E! iset trade-record-current) A+ M% K- i4 Y
(replace-item 3 trade-record-current note)' q& M% O6 Q- K' L
: f/ J- r7 Y {
+ q4 e4 t( g+ M3 N5 j
ask customer [0 Z( h2 o- b6 G5 R+ q
update-local-reputation
9 @$ E" U H# ]) G. `set trade-record-current
, [4 r6 v% P6 x/ [2 G8 q4 D; n; X(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; m$ u; J! \( f+ `$ ]
]* m; q+ U* v9 x# a1 {1 }% k
9 w @4 x1 D- `8 W! t& C
; A+ W4 n3 [( R1 O% Kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 I1 q" U. U Q+ q7 k* L+ t' T6 y% C
* I0 k$ X4 `" W* _; K+ A5 z$ K# n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 |. Q8 w w$ W: `( @;;将此次交易的记录加入到customer的trade-record-all中3 K" p0 F) R v2 N, C
end
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to update-local-reputation
7 R+ Y; |4 G, ^/ Fset [trade-record-one-len] of myself length [trade-record-one] of myself$ S: `, T" t6 \1 J0 H
# |1 v% @5 r7 c
: |6 ?+ Y, N. |;;if [trade-record-one-len] of myself > 3 & V) Z/ i' L; I8 \- ]' l2 `$ z
update-neighbor-total5 j- d1 {. F* L& A
;;更新邻居节点的数目,在此进行1 H u4 p9 r: ^# E
let i 3
- D5 R, d; H) M# i: jlet sum-time 0
! n6 x* H- M _7 Q7 _while[i < [trade-record-one-len] of myself]
8 z9 Y% i; D4 m1 t6 b9 G[
6 E* ] |* y4 p, c6 g( ]/ aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 ~* x/ z) e" [( i$ Q9 L
set i
6 { y% \; i A& M" y9 G( i + 1)) v z( s& i5 F2 @$ Z/ r
]7 }7 y3 ~/ h$ F, a' ?
let j 3
4 l8 x( p* T/ A1 t/ v' n! {# tlet sum-money 03 L9 C6 f0 n/ y' }# \) P+ r5 X7 n
while[j < [trade-record-one-len] of myself]
/ q( P) g/ C q K9 I% _ ~) l[
1 _, I1 L0 z# |2 z) C0 [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)
. R& g$ X: y8 Y! ~$ `6 Wset j2 A \5 q2 n) p. J1 q7 ^6 F8 A
( j + 1)1 `6 @* l# o) n/ d2 b; o6 B; s
]$ ^+ i% V! }4 L/ X
let k 3
4 D1 b0 Q( l, W9 e& _let power 0( ]9 _; {- h) |9 P
let local 0
+ O3 s& D r$ {9 J: B( `9 xwhile [k <[trade-record-one-len] of myself]3 S1 }- y5 n3 D. G8 b& t
[0 I5 A) ?2 G% V
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) $ }; N+ o& |" C1 B+ t7 }/ P. `
set k (k + 1); p- d! S: m4 U
]: R( h9 s* `" H2 J: h1 C6 B) I5 w
set [local-reputation] of myself (local)) V+ A( E8 i) Q( q' c
end
6 p, J" J" x/ R6 z" ~6 ^/ |8 z
3 Q! U% n6 z3 S |. [to update-neighbor-total
; ~+ x3 Z8 f! B- E* b. g4 O
# i7 ]" v& @ |. U- E! R V5 E& Y& P3 cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. g. Z/ w+ G% o( `
& R: P+ u4 q. N( |( ^9 c
0 U9 z: s$ x V- F$ V7 G2 R
end* j. C$ G0 t2 j& W- z: l5 {3 ^3 X0 L- w
$ A! W" N; l0 f" C, Fto update-credibility-ijl
! b1 X2 @* M2 u; E/ o/ x. J( S' Y+ q' b" x3 O# n+ r0 D
;;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 ^5 c) D4 d+ T B+ N' m
let l 0! J& t& M" X u* J9 e X
while[ l < people ]4 U' h6 B( t. ?+ ~6 ^: G8 F( A2 d! O
;;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
" ^0 m! y/ J* j8 M* S9 s' t4 b% j[% o: b2 m- O6 P: G$ E
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* j! L+ p9 s4 aif (trade-record-one-j-l-len > 3)7 j+ N! \9 P! J; {: F3 V, ]4 T: m9 _
[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! b0 d. Y* K- |1 _! I# H$ P
let i 39 \& y2 \* P; g# G% X9 \: `
let sum-time 0
5 v' M- c' _; Q+ U) `% [" \while[i < trade-record-one-len]7 ]6 r- Q5 O6 h' r, V K
[
& \/ F( r( d. c0 {) e) }1 u' Mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
v5 q# K& @$ B6 z" y! qset i
: O% q n3 X: E+ _' _* C6 Z3 J# V' S( i + 1)
- t: y& c5 K$ g. A$ a( B: G ]]
; G$ U+ w! @7 q% ]9 _6 Jlet credibility-i-j-l 0
4 a* K5 r1 E, E5 R1 F" Q4 u3 @;;i评价(j对jl的评价): c: U" k: l ]/ k3 J# A$ k6 w
let j 35 P4 C0 y0 r) O" E+ E* S8 p
let k 4
) z$ L4 _8 d) A+ @7 q0 Wwhile[j < trade-record-one-len]2 G( V3 _/ e- a. \7 p; O
[
% L) K/ h1 K1 K Awhile [((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
7 L% j9 z- `# f% \. G7 {1 Cset 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). `$ d0 W3 w$ z" |6 B
set j
/ e3 r& g+ _. c; ]( j + 1)% D. M$ z+ Y" t% n+ C5 x" g
]2 N2 M! ]5 P6 w$ N
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 ))2 y2 g3 D$ u8 q6 {
8 z. }% Z- }, A' \9 M7 j
' T; j& A0 C/ d2 \1 r1 H' Z) K8 rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- C- D$ L; z% A4 b; H) X- l# d5 q;;及时更新i对l的评价质量的评价
# @; c+ X2 c$ x& a' sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& e! \/ u1 t% l8 ~1 e, gset l (l + 1)0 L& h! ]- L1 X7 v" o4 i, T6 a. q6 v
]; o- X0 h$ X y' Z6 I
end
! W( l0 Z' O7 N) e. y* ^7 g" @2 C# l) [. Z# f0 ~
to update-credibility-list$ Z# ]: |% w8 K, V- N% Q. F) m
let i 0
( R& x) W% k- Z! uwhile[i < people]
1 ?' G- j$ ?$ e5 q: j) I0 X \[4 n) p1 U# y [4 ?
let j 0- T9 ~# m" L& W% p, c
let note 0
/ d& C7 X" k) T% L. f9 b7 N9 v; elet k 0( b" W% F5 P" H+ Y& P# Z4 ~( {
;;计作出过评价的邻居节点的数目) Y! v' G# \" u6 h
while[j < people]7 D- G& R# M7 S% e
[
# T( f4 O( J, ~4 S) p1 Gif (item j( [credibility] of turtle (i + 1)) != -1)
" Q8 o" K- m( F+ A: v! [& A;;判断是否给本turtle的评价质量做出过评价的节点& R2 z8 E1 c' _$ |- A# J0 V! c
[set note (note + item j ([credibility]of turtle (i + 1)))$ `2 h! m. [6 h( A1 c! \
;;*(exp (-(people - 2)))/(people - 2))]2 ~6 h8 ]5 P& n( } u" y
set k (k + 1)
. {# K; c e( n9 _, {]8 t5 p1 y. d1 Y, }" e
set j (j + 1)# c2 P! X7 y6 f/ [
]
! n; _3 g" N }5 X9 t# j3 Q* Iset note (note *(exp (- (1 / k)))/ k)" ]6 Q4 n1 G2 S% F/ F
set credibility-list (replace-item i credibility-list note)2 v5 J/ L9 r( W. R
set i (i + 1). o. j) \; b2 q3 Z, Q2 Q
]
; V% x8 d. K, u# s3 Jend& q: ] |- z1 W% [$ @8 X/ D
) P$ x/ p1 |; w5 v
to update-global-reputation-list
* i3 T" v* B0 w# X9 b' K! flet j 0( ?+ a$ a! z6 B! u( Y- i: X6 E% ^
while[j < people]7 J) B7 Y8 Z, t5 H' q$ X
[4 ]1 m- j/ g; |0 t& _% d* Y
let new 0/ K, ~: O* A5 W# s' j2 n
;;暂存新的一个全局声誉! f0 G0 s, I% R0 w6 P m
let i 0
1 Z* S- C/ {2 T+ K# E" Jlet sum-money 01 U( j7 l7 r8 i
let credibility-money 0+ w4 m5 c+ `# [( n0 @6 e: h) o1 v
while [i < people]
% ^0 A) B: I4 {: n$ w- R[) ]4 P# ?9 G$ J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 u; q/ }# l3 W. w+ B
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
V8 r \* l2 ]set i (i + 1)* { N$ {: C' D) R* x! D5 F; n8 h
]
. A$ w5 m5 I9 b/ x5 j6 U* Qlet k 0% T: o: {+ Y( B' n) _
let new1 0
D$ B8 q2 c* K/ g0 J5 Kwhile [k < people]
8 P" k8 g% Q8 j7 K2 j% l7 d5 Y) I[& N3 K; n4 Z- e0 c8 a" U" {. t$ T
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)
6 q8 f6 D( F1 ]: E& ~+ Iset k (k + 1)
) `0 l8 U& d1 x6 Q) c* Q]
. o7 a" _% [+ J$ [7 }" ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 H: l1 b% f% W: s8 F8 ~& n
set global-reputation-list (replace-item j global-reputation-list new)
; w3 }# A; A0 @" Hset j (j + 1)8 R4 X* d: V+ M+ `; q
]
) r( Y& `( Q, r, A% zend( `2 H5 T& `2 W1 Z
$ q4 I) ]% ?6 ~# \" ~
% z4 J1 g3 c. J3 Y- X6 m, D
6 D( [5 l$ m$ lto get-color
# E3 i2 D6 e# U$ g$ s& Y, T' j7 p3 f5 b- `( {0 Z6 Q5 L& J
set color blue
8 @. ^& b. Y9 z. k( {end5 I; k5 ]# e1 ^2 m0 [$ [
: t# A; b* m1 P& Z: a5 Yto poll-class/ D. J" ~ j6 K. `( ?) Q
end
5 |: Q0 L; Q2 V/ W
' P, ^' v2 f2 Y1 {/ z0 u& s* c, Pto setup-plot1
9 D; v! J& u {# G9 r X6 m4 o5 v6 V; q" H
set-current-plot "Trends-of-Local-reputation"
. F1 t# [7 |9 K# K" n; F' N: S" A+ ^" @+ o: T# J! x
set-plot-x-range 0 xmax0 r3 h2 K, i* j* C: n: w2 }; @
4 e1 O& s6 H/ n
set-plot-y-range 0.0 ymax8 |. G6 L4 {# J0 H7 F
end
% X9 ^5 \5 ?) C5 b) Y# g, [/ n
Z2 k! V6 ? g4 {6 n/ gto setup-plot2+ g/ P) Q3 i P3 [
/ \( {5 g% V( ~
set-current-plot "Trends-of-global-reputation"8 Y0 F0 l0 D5 ~! h: n3 r, E
, }5 C8 r3 O/ |. ?- C( ]set-plot-x-range 0 xmax/ B1 G# |. s$ s+ h$ w
( ?4 f9 P, t3 o/ c; o/ N
set-plot-y-range 0.0 ymax
9 g$ z# }- |# Z* y+ C& L4 ~9 Oend% B- n9 U6 c( J5 N# P5 o2 R
$ Y& p+ X( O* I, K! Q/ Y, tto setup-plot3 d. e9 g- c8 f& I6 |" U
6 ^3 h$ }, |0 I4 pset-current-plot "Trends-of-credibility"0 [/ w; H9 n: N6 f
5 C& T. R9 C& W" G
set-plot-x-range 0 xmax
$ n3 @$ D( X+ @- {0 f9 d" Q% z
4 K7 Z7 h7 ~- Aset-plot-y-range 0.0 ymax
$ U& ]% c9 N( y& N' v2 aend8 c0 h" u' k9 ]/ u; P6 b; o/ @- M
7 u6 K# L$ J6 S! U' j* i: Kto do-plots1 L1 @0 C- n/ n" G2 M# V- ]# F. K
set-current-plot "Trends-of-Local-reputation"
4 _) C# [1 C0 F& d6 V1 Xset-current-plot-pen "Honest service" p; v2 Z9 r H$ Y ^! C9 w
end
5 F) i9 K. N- u) r1 d# k7 ^
2 Q5 i" Q/ ]/ B/ g[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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