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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
% a; P" [% y- u: }/ Mglobals[+ N8 F# t* Z% Z- f) j
xmax2 @) x: h- |' |
ymax
- O* h! y' s+ a V3 t8 d/ n! Tglobal-reputation-list
: P e' f, }. N; h' z# R* R( p: E
;;每一个turtle的全局声誉都存在此LIST中
6 J) L% j+ V) [' w, e/ Ncredibility-list0 Y$ N3 G* ~0 o% Q( J" V
;;每一个turtle的评价可信度6 y+ ?7 }& [. i% @
honest-service
" c$ {* I$ z6 ^unhonest-service
, x R9 s* |% q' Q; Coscillation. N$ i( h8 c, d" W' B- p' B% W
rand-dynamic
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C7 a. R1 p" w) | _( h% M* `6 P/ G$ Y' k, p% \) z
turtles-own[
0 {0 O( {9 K( ^0 ctrade-record-all9 ]2 A+ N/ Q% L% t/ V T! R
;;a list of lists,由trade-record-one组成0 O. R; k# W1 b: ^, x/ ^
trade-record-one
! f$ h; t4 q1 N;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
6 l3 U% O Y- ?4 _/ Z9 S Q3 {5 I+ K: \
;;[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]]
, Z# l; v6 A9 n1 C- qtrade-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]$ w* y* |- |# p/ I% I8 v. r
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% y7 R- b7 N- M- i! `" Z% |
neighbor-total
$ T% @' K0 g; d;;记录该turtle的邻居节点的数目" m* [5 ~5 J) s& S" p; A2 g: C
trade-time" d F( q' Q! s/ @$ l
;;当前发生交易的turtle的交易时间, S& R; S* V- C6 Q6 Q
appraise-give
1 u# j W6 X x;;当前发生交易时给出的评价9 {. `* `( h/ ?
appraise-receive) a! ^5 l0 m0 X* R' f$ G ? p
;;当前发生交易时收到的评价4 W9 m8 e2 q) s/ k6 Q O
appraise-time6 C$ o% f$ o* @5 y$ V
;;当前发生交易时的评价时间" p& O: D$ Z" ^9 |
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 H4 s1 H/ J8 I& Ntrade-times-total
T1 V1 A' g0 | K' Y# S1 I% C;;与当前turtle的交易总次数! c: x9 c1 H: |7 V+ e
trade-money-total
1 B& k/ C9 E3 x! d }$ b;;与当前turtle的交易总金额
, y2 H! G1 b* o) Olocal-reputation
% W: l% \( ^) v1 W, d- I5 N# _: H& qglobal-reputation
2 h9 M; _/ t7 scredibility
' ?9 ~% ~5 u- E2 {6 N+ m& w) K% };;评价可信度,每次交易后都需要更新. M+ X9 u2 I/ x# r0 I6 {
credibility-all* {* u% ?7 g d
;;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+ A7 v5 s$ I% } \9 ?% N0 @& u
: M4 p# G- n3 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
5 U% @0 U; I$ k4 V" Z9 C, O* \credibility-one/ B" B; x- M: \" c! b
;;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0 O( i4 u& Z, l( ^
global-proportion
% h5 p+ f' e* @- t9 Y) d( S% v/ a$ Mcustomer
# |: v% `* E" F! _ acustomer-no
2 w# T+ X6 Z2 l- A! Y1 `trust-ok# X9 U) R4 k( B( r. `
trade-record-one-len;;trade-record-one的长度
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5 ?! ?# `3 Z0 L# y" p8 t$ \;;setup procedure
1 g2 P$ J" z9 [4 {+ p' ^
5 [7 A( f0 ?% H1 u4 B% o3 {* pto setup
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ca, O1 m6 k9 B* A1 |( V* A
0 H3 l5 _* J0 T" C& Z. V1 qinitialize-settings
$ x2 K7 X, m1 w4 a: {! k0 P0 H- K' ]: J2 ~* k3 z H
crt people [setup-turtles]: [# W" ]+ y# t! n
( ]1 x9 e7 u9 i5 I9 Wreset-timer2 H6 u4 N, O' C c8 Y
1 e- j9 A; V& W+ [- U
poll-class5 V) t8 B- K" I( F/ M' F' Q0 Z
( N) O$ b* g o# D& D
setup-plots( d0 M2 M3 U7 v4 j/ h S
8 w7 p k* ?, ]do-plots2 [1 h: Y% n, i b: F# o
end
7 v2 b: R4 F, [ a3 z
3 F$ y6 J1 o3 \6 }; lto initialize-settings
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/ V% F: _0 L0 E% o2 ~set global-reputation-list []
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set credibility-list n-values people [0.5]+ u) E& L- m. O2 w, G/ ~
& l/ Z/ E2 J& n% B% o0 vset honest-service 0
7 O1 b0 [# X: _* O4 w5 B! T6 R5 l) y
2 X9 T1 [) m% Q; F% yset unhonest-service 01 j! d/ r0 \! [6 _
+ X' {( |: R5 ]4 x! }2 \& c8 c
set oscillation 0 _3 M6 @6 E; ]1 \: T* D& M/ z
) x6 L' _8 |" d% s$ }set rand-dynamic 0
0 B4 Q9 G$ J. W$ a4 N% F3 i2 I! i- Rend
4 N- n* D2 _0 h! H
$ ?7 v8 D8 v3 I2 Vto setup-turtles
' k: g; B# `+ O; a- qset shape "person"5 o8 \& \% S! f0 n, W- n$ z
setxy random-xcor random-ycor
8 `0 f: n6 t: O1 P3 m: ^! _set trade-record-one []
; @( o L) z" Z) K" n5 ~6 S
3 q$ \8 \& P8 W5 A' E5 xset trade-record-all n-values people [(list (? + 1) 0 0)]
; f: H% _; q0 E( G; ~6 w
, L3 e* w; l9 k0 ?! ?0 dset trade-record-current [], |5 _3 W7 b% A0 g" _. Q
set credibility-receive []
' g( j4 Z, m1 v+ r. }set local-reputation 0.5
, O9 r+ ?2 w! |$ Q4 g, `0 Mset neighbor-total 0& ~1 B4 o; i" `
set trade-times-total 0
& i- ?& k* S9 c& P+ I8 nset trade-money-total 0
3 g9 M- u- F) F& ?7 g4 Cset customer nobody
1 Z$ L" S, y8 \' e$ M; b# tset credibility-all n-values people [creat-credibility]$ F2 J+ T8 m4 D
set credibility n-values people [-1]/ { a/ R2 H8 I. i+ R
get-color
5 m: C; h# f; h o2 Y; R& {! ]- q, x% ^ ]
end" d' W1 @+ w9 a3 E$ Z* D
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to-report creat-credibility& M% l2 |' C6 A% c, |
report n-values people [0.5]
( c# Z3 a- ~! d8 Uend
0 Z( h& ]! P9 Z6 |
" R' A5 N- R& q& X# Vto setup-plots
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set xmax 30
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$ S M3 @2 s' P2 R. K+ ]+ D5 oset ymax 1.0; B0 T H3 v' G
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clear-all-plots3 ] r; t2 t; }% ~1 C% u* | M
% F6 |( c+ t: q+ h% b! @; Nsetup-plot1
+ X4 B% r1 s- H3 c9 O+ n# j0 g, p6 c/ _/ n+ N0 c, n
setup-plot22 K* \3 g, ], r) K* `; T P! Q4 A
( A* N6 H& z% d" d+ @" i0 Psetup-plot3
/ s) u5 ], C; z1 rend
5 s, ^; f( [" C, Y' F5 Q# M' I9 ]0 _6 W: q( b# D
;;run time procedures9 L4 G7 M# G* T9 C# W
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to go
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- A5 ^- z, P' Q$ n# Y! Oask turtles [do-business]% s) k' w; U; x8 h. |
end
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- C8 H: v$ G( B0 E3 G1 D1 zto do-business ( k8 @: A2 Q: G
0 n6 q7 t" a5 X* A
: i" b- x) u! O7 }+ |( U
rt random 360* T7 A, W ~: B; u/ q
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fd 1% `: @( f# O7 I4 j9 {' [9 _# T
' h X0 l3 C7 z2 m! ]9 [: r
ifelse(other turtles-here != nobody)[& p1 b3 k1 U- V1 [
2 z$ w4 ?+ _4 Z" q `2 G9 o
set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)( N, y1 H* R& o3 |8 b9 L- W3 i
[trade-record-all]of self! i! k( q8 @9 B' S
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: K% G3 L2 ]& Y! a1 X1 S! v1 V8 v( q3 t5 t/ j# T1 |% }
set [trade-record-one] of customer item (([who] of self) - 1)1 G& j& v5 ^6 O- H% T6 Z& Q
[trade-record-all]of customer1 x4 g" a, Q/ j( u5 W
1 T& Z- V' U8 \) S# A1 g5 yset [trade-record-one-len] of self length [trade-record-one] of self3 _( U- n4 l. K/ w8 A/ V+ p
( E3 p! R! G/ Z- Yset trade-record-current( list (timer) (random money-upper-limit))
$ f) r% F' {2 v
: R" {' g" z/ ]ask self [do-trust]0 P% Q! |+ ]; f4 ]/ T. G( e; s! G' M
;;先求i对j的信任度: I- {& S+ E3 a3 J
% D+ v3 q( H* C0 r! R% r, D
if ([trust-ok] of self)
P9 a q1 {' m0 q2 ]% y8 y9 K3 ^: `;;根据i对j的信任度来决定是否与j进行交易[& q$ A( V0 j# ^% d
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# \2 O& A6 z d
8 r7 A+ i4 C& ~ r( i& A
[* \2 T% `: K: G3 S- h" z
' P: T. F! {/ k( i1 _+ D# ndo-trade* U9 i4 r1 C0 Q) p* Y+ r* p4 m- C
; L( v+ h; L6 zupdate-credibility-ijl
* r8 f6 m- Y% @ V
F8 o& `# ?3 s, ` Hupdate-credibility-list
: y7 m+ e0 q" }( T# o. C2 W3 G" k9 K
( u5 v$ `( _6 Fupdate-global-reputation-list. `, y$ T3 J8 A0 R
7 ]( E/ I7 ^3 dpoll-class9 } N5 I+ O5 j' G$ G
. M4 K4 d& \8 V- W: c5 k
get-color
* E9 c6 {. K( w# M8 R+ ]8 f! H: Z& S4 u) |0 J
]]; W$ ^7 K' _; U5 u8 y4 H6 i
) W! C& A2 c4 a7 r
;;如果所得的信任度满足条件,则进行交易
. v2 d! g% e. ~
; ~' l0 J3 A/ E1 R7 z[
/ p# j* t' j- c6 S0 {* r! B+ f8 j/ I: }$ p8 c. J" e2 f
rt random 360
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fd 12 j j$ t# {- [* j: D1 a6 H$ S
5 i: H# S5 D+ i) W) a]6 R# V! M/ y7 C9 M8 U/ g
7 c9 z8 e; X1 O% `& R7 E
end. k4 C1 T& m, {- ^; G$ u6 u$ D; l
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to do-trust & j- K0 t" C0 R& ?
set trust-ok False) l# w" ?, w, h: \
6 _. R; } _6 S2 R
3 S. X+ N" `' Elet max-trade-times 0
7 p$ K1 U9 Z; \2 l5 y% Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 Z" G2 m; v+ C4 G% b# b: l" d
let max-trade-money 08 k% i7 n3 B; ^& n
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. a7 S: w1 Q. C2 a; q- j
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) ~$ y7 x+ \7 v, y5 Y
& k0 }0 l/ _) g9 K
$ N, m7 ?- i. S3 Nget-global-proportion( H1 `; g+ F+ E2 c3 R0 V* I
let trust-value
8 Z0 l9 t( N% o# ]: t Ylocal-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 F5 \6 z" e% D( A8 n( D
if(trust-value > trade-trust-value)
. A) _) u! m* @( ~. S$ y% W; S[set trust-ok true]
) j3 z8 G* `. g5 I- R1 gend: N8 E6 Q# _- S, O% ^9 m
5 T( d, @) E8 z9 h, B) `to get-global-proportion9 ]) Z- p$ v( G9 P; B, m
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: w' r( F b( i# R8 n! U[set global-proportion 0]9 v% |) l B: v& {+ r
[let i 00 _' @: \8 P1 C4 S/ @
let sum-money 00 d% Y' u* e6 L! L& _
while[ i < people]) d5 m! J# V0 [* A
[( X& W( W+ z1 f6 ~2 X$ }" O
if( length (item i
, C5 E4 b* B* ^" F[trade-record-all] of customer) > 3 )
$ l3 k/ I" D$ x5 Q4 x2 p- I[
2 A% W9 G3 T& e" U: bset sum-money (sum-money + item 2(item i [trade-record-all] of myself)). N& [* d. t% T# I6 _- E
]
. e) i6 H* E' u2 S% n]
/ y' ~0 R: i8 v9 o6 Y/ ilet j 0' J9 F# _% } v; t# y4 u* ]4 ~
let note 0+ m5 C" U0 f6 ^* \% O
while[ j < people]
9 W! f4 Q* p- X7 w' b& r1 n) V[
$ o* ?& Z, \. T( r5 Rif( length (item i: H0 T% c1 v: i- ]' b7 ?$ |+ z
[trade-record-all] of customer) > 3 )
! ^! }! x+ `+ j b[
, y* T. n7 t3 j! ~2 X. F& Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& `/ L8 ?0 a6 E' y/ O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" c' Z% Z6 h4 b! C& J2 u2 X- m[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ ^- y, s6 f) d
]% ~2 E& J& }' F, `5 l9 a
]" S: P$ M0 G, b5 U; F% ]$ i4 k
set global-proportion note
3 n. F) V! i/ U) V7 Q: ~]
: Q2 b1 C# R6 B- Z5 x" q6 n. Gend; X3 Q0 T+ f }$ x0 _5 \
; G. v* i4 p- \7 w9 M; r; Ito do-trade
' E0 U" F6 v7 m9 i9 @# S' w;;这个过程实际上是给双方作出评价的过程
2 b! J& N I; j- y+ y/ aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( V7 Q4 P* e$ _$ R V( J3 m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 T$ l" J: e' L: F, ~2 Z4 j
set trade-record-current lput(timer) trade-record-current9 E9 o5 Q7 B7 @5 p4 l1 {3 C
;;评价时间 D' p1 a- d2 f: L4 h8 K
ask myself [5 i1 Y# p% f, R; \8 o9 h0 A3 O
update-local-reputation7 e& d/ u& S. C3 w
set trade-record-current lput([local-reputation] of myself) trade-record-current
' F" y; a2 x% d]
4 d. ]/ N6 @4 v% s* t3 e- @set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 u( r5 U: |& f$ ^9 t) Q
;;将此次交易的记录加入到trade-record-one中( |8 Y3 \7 W1 u6 ^7 G- [' e9 k
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* Y, {1 i9 e( z8 ^
let note (item 2 trade-record-current )
! r6 x$ J( h2 O0 L* Aset trade-record-current, p) U# H& n9 d: n
(replace-item 2 trade-record-current (item 3 trade-record-current)) p9 n/ Q, l3 H7 `' g" ^3 G
set trade-record-current
: F% u3 ]* [% d: G e# {(replace-item 3 trade-record-current note) u( f9 z8 P; t0 R) P
( P% ~6 J* R' Y8 D
9 E7 e; H! H/ R2 l8 j, Cask customer [: e9 |3 E$ e" `/ y, [, S0 ?
update-local-reputation
" Z8 v, t" C+ @- g! ^) Q3 Uset trade-record-current
5 w `) |) [6 q+ ], y; {! ~( R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* k+ n" W3 C5 s) m; V" _: @5 T]1 y7 k2 d8 U' U+ X4 ?
' x# N( p6 `9 J# V, i$ ?* a( D8 m
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 i) h3 j. U8 F9 I( L s( y0 W8 [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): M1 b9 J- ?9 ~: ^5 z
;;将此次交易的记录加入到customer的trade-record-all中
3 H# u# c7 J( Cend' ^2 X7 A! P8 K. J2 M @+ A, [
4 w7 L, }7 A& S5 N3 U, r$ \) Zto update-local-reputation
h% R8 R7 O8 f* U6 k. xset [trade-record-one-len] of myself length [trade-record-one] of myself" s: j, ]. {1 }! u- m
6 V5 c9 A5 U! O3 u3 i: c
- J+ x! ]# q$ ~7 E
;;if [trade-record-one-len] of myself > 3
f) c) S" B5 L' h6 h9 K; E9 pupdate-neighbor-total
) I7 `& a) A, E;;更新邻居节点的数目,在此进行
" M' m$ b7 r' Zlet i 3
: t+ u/ l+ o# rlet sum-time 0
9 @( g( e) w+ k: awhile[i < [trade-record-one-len] of myself]" V/ J. k b. E* Q
[
) Q* \; { Z0 ^, l& ?; a/ iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* H# r/ p/ x4 w. |5 F: D
set i. `) I8 }6 O1 l' p7 ^
( i + 1)
1 t* X3 y/ A! O]
# i g8 R% Q4 ]' l: elet j 35 p- y( H) q& d% u r
let sum-money 0
' T: `3 k: ]7 Y5 }while[j < [trade-record-one-len] of myself]
1 R* Q" n. j$ {9 G, U[3 e( H' ~0 a1 c" h; b( H
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)
$ x. e0 c9 T" x& W7 j* _# A5 ]set j
4 ?1 O9 d. n+ ~( f+ L( j + 1)
# E8 }/ Z: K9 `5 c. a9 g( d4 W. v]' N4 u' H {, _" _, m! w0 e
let k 3
: e6 b: U- a9 m$ S% I1 O1 u; plet power 0+ r* }. Z: ]* s7 c
let local 02 h' @7 Z$ q" y; e( G% w
while [k <[trade-record-one-len] of myself]$ Z1 R5 a, R/ ]" q; g+ e0 R
[& E3 s; ]9 ^" `9 N0 {2 p3 _
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)
& \- e, k6 p j, k4 vset k (k + 1)
* {, @& `( B6 S$ m* f% n]
- a5 C, }; C/ [+ H0 T+ b/ @set [local-reputation] of myself (local)+ v- s+ o; k- _, U2 u
end! \0 G! O' ?! a8 G
! K+ G; ?$ E. c3 xto update-neighbor-total4 c. U# B. p% t
$ @( S/ [! X1 mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 @. U. q# I: Y f1 u4 I6 l
# z: @# l- D9 W1 F% U: v
+ i, O. F' y# Y. Oend) [- e; z6 o+ n" c+ x9 V: K
8 ^4 a9 A# T8 I* F5 h
to update-credibility-ijl
- a( n0 u y5 O& v2 s( S$ u1 M8 ~
! U5 H. @* u% W6 a3 B;;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。$ @. @/ T. I6 B
let l 0
7 H. j6 r( M |0 e7 C* M1 Z1 `3 twhile[ l < people ]$ w7 i+ p `5 A# L! 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, f; O2 I7 g/ k/ D
[3 u2 Z6 ~' L. w( m! l3 [/ N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ x( K. b, ]- U
if (trade-record-one-j-l-len > 3)
$ C% |7 V0 g4 @: K/ z; _4 o Q[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
8 X8 |7 L3 f4 s$ n8 |4 Q- mlet i 3. H; c$ ~5 M/ | R2 Z7 E- w* d
let sum-time 0- r: d3 c* T. I) p+ y: R, G2 Z
while[i < trade-record-one-len]
9 }& W: M) t# y& _7 n; s! N4 |4 k, @[
1 e& g d* H- t' E q; `5 c8 |set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. W& ~7 O' i" ]/ J; _set i5 k$ c9 R, ?& _' n/ P
( i + 1)
6 ~ M5 k) X, B, J, ]* \0 `]
$ W% p$ B& k& [* P1 S) S6 c6 T5 qlet credibility-i-j-l 0
\) {/ f2 a- e+ P$ B' f/ f* ^& H9 {;;i评价(j对jl的评价)- t& h5 z# r a" _2 U* \! c
let j 39 i/ @6 _' m% Q2 H& X* F
let k 4. _6 z$ G) M) k1 [8 y
while[j < trade-record-one-len]
/ x# _- @1 _3 b0 [# H9 _[
6 N5 @$ e& o6 C7 l# r* W, I1 uwhile [((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& T7 u+ Y* j$ j6 ]& e, F
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) k/ V( j2 y% L
set j
$ [7 s7 c3 T; @, p( j + 1)+ M2 l f# u8 O: _+ h5 \( D$ W
]3 Z$ N8 G4 e: X. X" q1 s ], P
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 ))# L5 P. q' n" {' w5 F% H
2 Y9 C4 e9 d) B- O9 _' T
: ^& J r: W3 I% b9 Q. N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ u2 l8 K G/ G2 q/ X;;及时更新i对l的评价质量的评价: V' S x/ P: Y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 T" |( y# A+ Z2 B2 ^( y
set l (l + 1)7 [' F" t4 W! n0 R) f: h8 l- \, B
]
, Y+ \/ s2 |" X" d0 U6 n: mend/ P* _- X; k$ i# ` @' o+ k" ~
' f* b7 S6 W/ uto update-credibility-list) \$ L% L2 L( I$ l
let i 0) K. l. N4 N, l9 l
while[i < people]
' a% B- P2 C+ v! B[4 d$ G+ N0 h3 p& J! N8 j
let j 0+ U. @. O9 a' {$ i
let note 03 C3 u+ U. L7 ]5 d8 t! k; A6 Z7 d0 c
let k 0, G% F$ b1 }6 } c7 ^+ s
;;计作出过评价的邻居节点的数目
" Z a! k& q& F, x, wwhile[j < people]5 ?: \* w2 O3 E
[
& o' R1 w3 p: b3 [if (item j( [credibility] of turtle (i + 1)) != -1)
7 e* i" C# r& z) N2 k% z* Y) v; F6 D;;判断是否给本turtle的评价质量做出过评价的节点4 x, K# X% R" y- s
[set note (note + item j ([credibility]of turtle (i + 1)))
. g! `9 d7 m' f& m1 E& c;;*(exp (-(people - 2)))/(people - 2))], S, l% f. r3 S$ M
set k (k + 1)
7 y E# R( X& u2 v" s' G8 w) a) r]
; x. x {6 _( Jset j (j + 1)
& Q0 a$ H& \9 \0 v]
: C) U- e& ~! I, {$ ^set note (note *(exp (- (1 / k)))/ k)0 D& w* _ A/ _9 ^. c( J) W( j
set credibility-list (replace-item i credibility-list note)
! L+ S2 L$ T/ x+ |set i (i + 1)
" q$ W1 k) l* O- g7 x1 R]
4 ]0 m2 J% A. H( U# R6 y& Vend
$ Z5 p6 s& F' b- x
( J9 |4 ^* T: {4 a7 k8 b- zto update-global-reputation-list
* l3 A e1 R! [+ d8 E" Q3 Elet j 0
) x9 f. s& d' {% \! T) L3 ]while[j < people]
# n! m1 m' d: [( q3 O6 _( ][( o- P8 m5 Z- {3 H$ Y4 N) U! T
let new 01 v: x, t" j3 Q# \
;;暂存新的一个全局声誉
~0 W$ k% H; J* a; y2 l" ^let i 0# ]6 d: r' L& l$ @) |5 P* D* `
let sum-money 0
9 m1 o5 B% r5 ^let credibility-money 0
, h0 G( {/ K* t4 U6 V# W8 iwhile [i < people]
* m1 u2 L3 j. }[
! ]2 N; F: G: {set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 C* W/ a1 b I' rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ Q1 `1 k. |6 [( ^" D# n# _set i (i + 1)
+ z8 T$ G+ o# h3 q]
" F5 e T& q0 K- p) y( h# q- ilet k 0
" A+ ]0 s6 q1 J7 ^; N& j8 `: z0 ^( ulet new1 0
* H% _9 F! b8 q6 bwhile [k < people]1 r3 `$ U% N) H. D2 ]$ Y
[" F, K. c# q. G, r; i
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)
. `2 f) V9 s+ I2 \9 m9 P) ^set k (k + 1), f" _6 x8 V5 U- G+ H9 Y# p5 H5 ?
]
8 m4 ]/ m. o* m7 ?3 t6 Wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 ] q1 [; B- J" E8 zset global-reputation-list (replace-item j global-reputation-list new)
% U6 z) ?9 Z4 [5 w3 u! v9 l4 V& f# c; yset j (j + 1)
0 e% ]# r' ~: U/ h* K+ s7 Y]" H& _5 I" M9 o& U" F3 L0 d
end! Q& Q5 Q& Y" o5 b
# i+ x# z1 p6 h8 `4 }
0 X* @3 y, c ?5 U6 b$ X8 g2 i
1 D* |& i9 r( ~* mto get-color% @9 O- ?4 M1 ^; }1 M
% A- b$ O$ f& q# f! ^set color blue3 N- i& n/ ?1 E+ H! M/ ?
end4 ^" S C: I. c( D p
) k& ]; H8 Z8 k" zto poll-class; B9 O7 {# Y- J/ _# X2 W* D
end
# ^% A. [% ]2 x# R( r+ D$ i4 Q9 H& T \1 ?
to setup-plot1
# Z1 a8 D+ @9 {. s! \" V( ^. ]" N0 Y% _' ~5 q( g- M! g3 E
set-current-plot "Trends-of-Local-reputation"6 R% x& g. y) ^+ I: ^9 r8 m
2 B7 @2 u' M4 l L5 bset-plot-x-range 0 xmax
3 j/ R( @; u& W
; ^& B( n2 a ^set-plot-y-range 0.0 ymax; x' K6 u$ s' G! y: x% S& B
end
- l$ P# j' i7 F4 T4 J/ E
& {9 }! K. B, N. Hto setup-plot2
0 H! W, H8 v7 n+ P$ s$ g( Q6 e8 @2 h3 O
set-current-plot "Trends-of-global-reputation"
! J4 ^( e) k4 P, ^& p
. @- ^! ]) T+ ~9 a" \/ |set-plot-x-range 0 xmax
% d- G1 b- v- ]- G; z3 Q% t) h; L- r; D
set-plot-y-range 0.0 ymax# r0 N* r5 O; Y) V) H* m$ v* M
end
+ m& u- S$ g* D8 |3 ~ z. ?; w1 q& w0 H" N( J2 O
to setup-plot3
4 N) ], E, \! A4 z$ t) ~2 J( y
1 C3 K7 m6 b% f1 G" L+ [# vset-current-plot "Trends-of-credibility"
% P7 }6 M9 x' Z4 y! @* e/ H* \' S; O% ]
set-plot-x-range 0 xmax2 \. T7 E8 G0 [' j# o
& b6 o5 `: S0 G( C: y5 I4 _# x' vset-plot-y-range 0.0 ymax
+ t9 |& T+ a4 h* _0 ], Rend1 q+ S9 s' C6 ?1 z2 B4 N9 v
6 j @) }4 G2 x% G- X# h x+ Vto do-plots5 D6 j: g5 w! Z0 Q: v$ s. j# e2 N" [
set-current-plot "Trends-of-Local-reputation"
7 O" I5 W8 F( t3 {+ g- Lset-current-plot-pen "Honest service"
% O. F9 t9 K' b. d! K) U+ Lend/ H( w' A; }5 P8 @/ U! G, m( W
; k( o% `2 F- U+ A: u/ ~
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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