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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
2 m2 v0 Q t9 K7 Lglobals[) ~8 h0 y$ l3 Q# g8 U+ B; f9 `8 J
xmax+ {0 n! A, w( L6 A- F# Z
ymax/ D$ v$ H9 F% x, m: ^* W' i
global-reputation-list
0 Y& V! g1 u+ H- x3 z. j, b/ f) h3 `2 m$ {$ o% Y, {
;;每一个turtle的全局声誉都存在此LIST中
" X4 L/ ]' O5 C; e; tcredibility-list
+ X8 v `4 H4 y5 p;;每一个turtle的评价可信度
) l, P- c2 i9 S0 q' k9 H' Y( Nhonest-service
* V5 h1 e% x$ |8 {0 uunhonest-service
: w. A$ W1 c; x3 }9 ioscillation( R+ k1 ^0 R1 H" d# ~: u5 a
rand-dynamic
I$ u8 V5 N5 N" n; @. f]
* C' }! A! ^ o! r# n
+ G* P% N, v# N9 vturtles-own[ Q* Z) y! _% g, M) [
trade-record-all1 m7 W! e1 U( j) K
;;a list of lists,由trade-record-one组成
2 T) | y/ t9 h+ Vtrade-record-one
, M/ N+ {/ p/ o: |) N m3 o;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- h4 _! ]. s% \; R. U
! L q1 w: k6 K- w; g& T
;;[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 \: S9 H+ {" S8 a7 V6 ntrade-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]
" m) r7 f) w# [! L( tcredibility-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
/ n/ r/ Q' J+ X0 f' W! mneighbor-total& W( s2 L& R1 E: [+ J
;;记录该turtle的邻居节点的数目
/ {6 F5 e6 W' ~trade-time& [- G! K/ s% }% H* e) i
;;当前发生交易的turtle的交易时间
3 S* E$ c( q) ]# }5 K; nappraise-give
, _$ \8 j- k7 `: |! h; P, r;;当前发生交易时给出的评价( ^5 r% ]+ Z0 q
appraise-receive" T6 i: e6 E9 h& {+ q; c" }
;;当前发生交易时收到的评价5 i/ F! j+ j! |- j$ J+ O' X
appraise-time
0 J% Y) v1 \) H ~2 R;;当前发生交易时的评价时间8 F- J2 t% v( z% c4 W7 k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 l) i, v4 A; @$ K' |2 ztrade-times-total g+ @, W$ n# ~1 {: v v
;;与当前turtle的交易总次数$ e7 W5 O% W p
trade-money-total! G' E! @9 ]! n! @
;;与当前turtle的交易总金额) O* {2 M+ V6 w- v# k$ G
local-reputation
& I! ]3 P' w3 }1 g Zglobal-reputation. }/ U$ z7 L" N6 `: ]3 K/ Z
credibility
9 G1 }+ F6 e' @$ {% L- H;;评价可信度,每次交易后都需要更新7 j" ]0 l. M r4 N
credibility-all
1 k1 Z% H* h- p: n, u2 W;;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' ~8 O3 I6 d8 x/ ^$ G: K0 {6 Z/ W0 r
8 o6 i: j! x" h3 w: _
;;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
9 `% s0 D- C0 V ncredibility-one/ H+ x* q9 R* w E& C& _: x
;;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/ N) x( H, d$ E0 W. Z9 a& g
global-proportion
, w; C3 X( Q6 @7 ~* I8 f+ Hcustomer
. k" i! c; S, ccustomer-no
6 z, |0 H) e6 }9 K+ g( t# Ztrust-ok
7 C1 D1 q0 v, A- t9 T" _: Ytrade-record-one-len;;trade-record-one的长度
* t- e7 P9 {8 z( J" s3 E) G' ]6 U B]- U8 Q# [. Z2 N( o
1 b' C+ B! K. Q# Y
;;setup procedure" M B1 e/ [: m
2 `0 K+ b* A6 A# f3 [6 l/ cto setup
9 S2 m, n( V. P6 J( y
3 t3 D0 U) Y2 [: @. [7 O1 @; x2 aca
5 Y+ Q3 z( C$ g7 v5 O/ U) q( H% \$ W6 {9 g' C( E
initialize-settings
1 h7 h9 e7 N% B2 m/ l" ]+ C6 J7 |
9 f2 M0 W5 a" V/ W* acrt people [setup-turtles]% u4 ~2 L: Q3 c# {
6 ]6 l5 o# Y3 z* o+ e2 Q
reset-timer3 t! v" A; Q& m# u- k
$ G1 n3 ?( n# S1 S4 O1 n
poll-class6 S T* P/ T. v4 {' N
- J7 n9 h' B6 ^' t1 l8 n( S4 b, bsetup-plots
' d4 @3 |4 B" D' J/ C
" j% [% t% c# U" H* R! J! [- k8 fdo-plots
4 J2 E/ f, ]5 C$ i& u2 qend0 u- |9 u) I* l8 M# L
3 d2 u! ^4 a% S( R0 F2 s& Z! Y5 L3 m, nto initialize-settings
1 a! Q& h I" |8 Q; E: x, k; M. Q6 U( [
set global-reputation-list []
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set credibility-list n-values people [0.5]! }) M: |1 y, A7 N$ M
8 E7 S2 w( [+ m s
set honest-service 0- Q# M" X. s" C6 Y9 f/ Z( F* n2 w
1 o# q, k1 ]- {: @! i. [) W# w
set unhonest-service 03 y8 S: p0 ? O4 P6 u; {* ]
# v" \) {+ V o% v! C) z( gset oscillation 0# S+ G5 @0 o, S- D
X0 s5 d/ ]- X; dset rand-dynamic 0
3 o, H; {) L2 r' i& e M* u$ wend$ V; V; P5 T+ Q- D1 c' k2 L. I/ X$ e* |
h. k( v* I W. G1 e+ L9 S0 _to setup-turtles ! g8 ?& U' Q& P& G, m
set shape "person"
; \4 H0 f& G% O* e( D8 y* x e; fsetxy random-xcor random-ycor4 V5 V' Q8 X8 z
set trade-record-one []
0 `8 i" U! G* b1 N" W. N. B: V% B4 O, L; c r) K7 \
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 B; q7 R) ~( [0 o; A7 J* B4 \3 W
4 i1 \4 e* ^9 D' ~: V! X
set trade-record-current []1 [, S& ?! |# [# ^
set credibility-receive []
1 X/ M9 H$ D0 R6 y9 pset local-reputation 0.5" Z6 E e3 D5 t5 f; X) ~
set neighbor-total 0
3 ]9 J. U: }$ S1 Q% P/ E. R8 b4 q1 Tset trade-times-total 0) L E% x; _- Z) O' u& E4 B& |
set trade-money-total 0
+ f# B% B, D2 D0 S# ?% _6 ]set customer nobody F7 a$ c& J: Y% t, \( {# i2 L
set credibility-all n-values people [creat-credibility]
: O* m- r9 N# Q! f% }' Dset credibility n-values people [-1]4 ^3 _0 U( ^: T9 x& N% F% t
get-color, i, Y! l% e, m7 ]- P
6 ^3 f/ F$ F* t& C& {6 c
end/ p1 [( S& [3 n- n; ]) f( }$ s" `
! ~& `* s) L0 f0 R) A9 r% B
to-report creat-credibility- i. \6 F+ [+ x- O
report n-values people [0.5]
. u8 a/ h4 J- o1 n+ t3 ~; eend3 q. A" C( a' s" L9 d$ Y
, u: m0 w& c) n/ z7 X" v$ Z8 V, gto setup-plots: f5 o0 ?0 b- r- u3 Q* P
4 C- Q. `- X: _$ {: T* |7 e Zset xmax 30
! b b5 H7 ~! [$ k5 W# W% Q# h: q3 i
set ymax 1.0; U, |& J& D0 V1 K' @3 {0 ^
" r/ I: T' a) }7 C
clear-all-plots
/ \) h7 F$ b8 x0 x% n+ v k9 g+ w7 a) ], a# `: D
setup-plot1
; H! Q, n) ]+ `0 W' Y) s( t% V" M* j, H% K0 W+ g: f
setup-plot2
r5 k$ k: {7 ^/ M! Q
, t: e% K/ J: z7 x, s7 E, a0 ?3 @setup-plot3
% l1 C/ Y- L7 K' |: ]% {end. p& r7 K* E: m2 E+ `
# _- q$ z- }$ f; j# D' I
;;run time procedures
) x. t# f; k/ R% s( ]# f1 [* m1 ~2 j) |
to go" P1 c( ~& E; O. h: t1 @" L0 s
+ E7 q2 E7 h! C0 e: T% Pask turtles [do-business]* f6 g" ]' H# @) ^
end/ X$ i4 r% D. f9 h$ G% ]& c
( V# x5 d, r2 f% Y5 Y0 r
to do-business ' i% ]; e4 `/ J
7 C _# {% t+ L6 t( y7 B! h# `
4 C/ s' g4 z# f
rt random 360
3 S7 z7 }1 Y, G) }# \
3 I8 M8 d; D% r$ z, Q- `& o& sfd 12 j' f. f( b+ @& U. H6 q1 ]
0 e Y2 z% K* {3 U! d
ifelse(other turtles-here != nobody)[$ p; K. ?) j/ }0 Y$ k' }
0 C0 ]- a2 @- d# L- Q$ v( V7 |
set customer one-of other turtles-here6 L9 e: {& D: l; u* O
5 q9 d. K( d3 P
;; set [customer] of customer myself/ n d- G( o* \( ]- H
; A/ F' k! h& x/ mset [trade-record-one] of self item (([who] of customer) - 1)8 E7 d; O O* Y
[trade-record-all]of self7 H4 q2 I" l3 o8 |6 a
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ J! a7 u5 g: E! S
" ~/ z6 s4 s- V7 H, tset [trade-record-one] of customer item (([who] of self) - 1)
$ U& u9 D0 q" C8 O' x6 @[trade-record-all]of customer
& P* ~+ O: l6 Q' \" o4 V
2 g0 o9 A7 u0 B) S# z% o0 rset [trade-record-one-len] of self length [trade-record-one] of self
1 c4 y7 L' F8 _4 T( g) n1 V' a1 p7 j
set trade-record-current( list (timer) (random money-upper-limit)), |% ^' N+ @8 { G. d; T \
: I- X4 p' e* s/ h) @9 q5 B; bask self [do-trust]
; k x; ~1 N, m- L) v: p( A) I q;;先求i对j的信任度9 T2 V, T3 M: S% S7 d- g1 \
3 h7 E9 V- T: Z* K) t3 d8 Fif ([trust-ok] of self)
7 S& z* R4 q4 _ E;;根据i对j的信任度来决定是否与j进行交易[0 Q) a+ A ^ l) s5 [3 k l
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
# [; O, H- }& Z, U# ?0 `
* t @( p" E# m' T0 v[
0 ~' W/ Z: W. j, }: _+ P/ s
B# L; h/ @7 kdo-trade
( I" b& t: N& f0 u6 Z+ \& \/ d4 |; r M( n$ I1 f
update-credibility-ijl5 S6 {4 _ {/ s2 F) _
1 k& q' b! b' v7 [, g* V6 q) e6 `$ j- Xupdate-credibility-list' F1 \3 l2 D% `; X
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update-global-reputation-list
% G9 x% ^# A/ X2 e8 |& l$ }4 h* w6 F/ W8 `% B
poll-class1 R: E' \% z) @7 M$ g# F- R0 y
; G* [6 _7 K# aget-color
3 A4 z8 x; Q, D0 `& Y3 o" t0 L7 d" P4 M
]], w( z9 V" L( m7 f9 q( k M1 w
) V! g5 l, g: [8 F
;;如果所得的信任度满足条件,则进行交易4 r! ]0 r: e+ p7 [& K' w
+ _- x$ }6 ~# }4 y[
3 g" B9 E2 L* W/ {! ?+ X. {! b {& |" T0 B
rt random 3601 {5 o3 s0 ?! \% N
0 Y7 h$ \& q3 _) }
fd 1
H* `4 m5 s' E. ^% t, J( I$ Z+ X2 A5 A( P& X7 ^6 K
]
% j# O2 o: @7 [- K) ?1 x7 [) H$ g
& l$ A( s2 k& {" P* vend
1 X1 n; e4 z c! M/ n9 A1 e# G V
" `( E0 M8 x' W4 ^" u* oto do-trust
- `/ n5 w0 P0 X/ Rset trust-ok False
. r9 T7 [, n! l( V/ A9 d- C6 }" i1 m' R' S
" f1 x$ E: M+ H7 c- R$ Jlet max-trade-times 0/ {& ?7 u* j% w) \0 [
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& E0 \% r8 h) M& Ylet max-trade-money 0
+ d6 u" q/ A0 D; W" z' q' G7 V! Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ _, `1 q! e% Z1 B/ s& d5 olet 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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2 k4 W: Q; U0 L4 Z
) J' ?" j( e4 D" p& sget-global-proportion/ p$ h( X, r# k( z, C0 ?
let trust-value
$ g! D3 c* Q" M% `9 nlocal-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& `8 C6 y. U3 ]/ r! C
if(trust-value > trade-trust-value)
! c0 \9 ]" {* l' \" F[set trust-ok true]
( r& _3 J) n3 ?1 g/ U; aend
0 r9 s' t4 h4 ?- R2 U0 M- N; `; p Q& M) Y
to get-global-proportion
u9 {* M% A: m7 _8 P" iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, h( E; u1 `+ Z2 @[set global-proportion 0]: f$ E( a+ L% W! ^# f1 h: c3 Y0 o
[let i 0
$ @8 c, ?/ y. `( }let sum-money 0 s( I/ U" k, p; w u, b
while[ i < people]
+ W3 g. W& v% h7 G: d" a6 ?[7 |5 y; e( r2 r
if( length (item i
" n+ k4 i4 r) ^- g K8 I4 M[trade-record-all] of customer) > 3 ) R$ ^$ q3 o& a. [0 U
[& S) O+ ]- u3 {' K
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# s6 G: R/ e) L- P6 O4 a" [: T
]/ G8 S# e) j. Q) V8 Z0 l: u2 P
] }" P3 n( }$ \3 N
let j 0; {3 E" H8 U$ Z4 e+ v
let note 0
# Z! s" U' j3 r8 C3 C: qwhile[ j < people]: ~- y* c8 w5 y' {( m7 P- ?
[: E" a1 j: o9 M. w
if( length (item i- h3 A1 G6 U3 E+ R+ q; S
[trade-record-all] of customer) > 3 )% i- U5 \+ I. _: S
[7 `; J3 A! P7 ^ h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
`# M; M! {7 D# I+ Q4 Z! p: u/ }[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 F4 B, L- D' a4 w3 I% ^: v$ P
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 s. A* Q3 d" W]
; f% ^6 y7 t3 U4 {3 @" [) Q' i]
4 E, I, l8 t5 U! j. @- J, yset global-proportion note
: j% o% |* x6 o# h, T+ b]4 {# a8 k3 G, ^+ H4 Y# T+ Y
end2 b+ e4 g9 @; \! H8 V6 p
7 ?+ _8 y8 C Y8 o: I) p' lto do-trade
8 O. g& `& e0 J w1 o) P;;这个过程实际上是给双方作出评价的过程, w' M7 G+ G K, b9 T: i8 n w2 D
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: E6 D5 Q6 M% [% [% R5 h8 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ O0 ~5 a' c! f. q1 x2 I6 V: xset trade-record-current lput(timer) trade-record-current
$ W w; l+ ^( E- X$ x;;评价时间; J4 _ ^, f/ F
ask myself [
, F4 y8 \: ~- v3 A2 d! N4 P8 Uupdate-local-reputation
$ ?2 ]" y v. |; P; R( B" J4 Mset trade-record-current lput([local-reputation] of myself) trade-record-current
w8 X7 j( v8 [- c]
% y- P$ H0 f0 u" B- h1 M! Uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ r3 m: Z' j% e/ T;;将此次交易的记录加入到trade-record-one中/ T5 \* k* X7 x% s8 a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ a* X1 K+ K. j# t, k, K, ^. Glet note (item 2 trade-record-current )
/ c) Q: M- s9 D. ?8 ]6 dset trade-record-current
: y, R& \: F3 N% {& r8 e. ^(replace-item 2 trade-record-current (item 3 trade-record-current))
( J. A2 Y L5 \! G8 @2 O% ]4 w `$ Iset trade-record-current
8 S: u+ J) N$ X# D3 ^. _( c* h(replace-item 3 trade-record-current note)
: V3 D: A* P k9 F
. |( V6 L* Q D! n* U9 N; o( O
ask customer [, f' }. y3 d6 M, J; N+ b
update-local-reputation4 U! S5 n' C* t4 t A
set trade-record-current& N7 i0 k) g+ k
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 s: ]+ T1 _9 A- v6 D2 ^
]
0 W( t( s( w. n% A* @' j# S
! n9 T& u4 v5 k# b% p0 U. A
( Z+ E2 z/ B/ `* x D9 j; qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' v) K5 t" ]" X* J# K* J' A! H: t! e" M( W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* j# k8 W* v* ~$ {3 z* \
;;将此次交易的记录加入到customer的trade-record-all中5 _# e, f! ^' M& k& |$ R9 U
end# G3 O; I$ n. ^! j1 X2 {1 P0 x
: t: i8 N: @4 E9 `; D# y
to update-local-reputation
4 l) E$ S$ a% t9 n! ~- Hset [trade-record-one-len] of myself length [trade-record-one] of myself
4 T: R+ [' i# ~0 F
) l; E0 ~- O, n8 s2 n2 k% b7 V! p: ]0 p- q+ L% k2 E
;;if [trade-record-one-len] of myself > 3
) U, O; D5 d f' r* t' Xupdate-neighbor-total: S/ y% F) A) c1 E; z
;;更新邻居节点的数目,在此进行. K; m$ @6 U& @3 a' R% j. g8 U- ~4 h
let i 3
& V9 E8 T, ^# j' Q k$ Nlet sum-time 0
$ s4 j( T6 R% nwhile[i < [trade-record-one-len] of myself]
* I0 Z7 j$ Y! j T[* p! v2 l5 D. Y1 S3 v
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# _( @2 @; x, e$ Qset i# u( M% q- T5 L6 W9 G* C
( i + 1)5 q \" L- ^6 T! @( V+ n. d+ t
]$ g% u5 D5 @) `) d
let j 3. B6 j- ^$ Q' U& A& n/ X) W
let sum-money 0
( |0 Z& ]* u7 W. e4 R* N# X7 Hwhile[j < [trade-record-one-len] of myself]
1 |- X) ]3 m& h[; \/ o' b! U$ {0 e/ T) x7 P
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)
3 r# ~8 _2 M" G R, Rset j, S' v6 A/ g4 i" k
( j + 1)
$ A' O3 t2 j9 `5 @& X& H]( v* P7 d& n! E1 P. j
let k 3
' l6 |' a3 G2 o0 x: Xlet power 0& x, H1 `9 N* [0 A5 o7 C6 q3 h
let local 0
3 U0 N7 X) X! R" Jwhile [k <[trade-record-one-len] of myself]. D' {( Y7 e- n6 m" d
[$ E0 F+ V1 J6 ?) A# }
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) $ W" i/ ^3 }' r$ s7 [7 y7 n! g
set k (k + 1)
: C( j7 v; h. I]
9 j1 l: _$ V: P- Dset [local-reputation] of myself (local)
) _8 v8 c8 g, w/ {+ \- R: iend
! ?2 @( m7 X% t7 I
/ C6 v5 T) n$ f% v' Pto update-neighbor-total
7 \6 t6 l+ C% t Z7 b
1 ]5 l/ ~& Z7 ~) P& Sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, i1 g& Z/ X- l* Z9 t
/ I. w% W0 ~* x- u3 Z9 {& j; `# E" Q Q6 a$ R% u/ \
end
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to update-credibility-ijl 8 k; ~. k& U z, k
3 r! n/ S$ y6 F4 J% 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。
- }( x% F( @% j2 r3 `9 L$ m, alet l 00 h; I; t$ Z8 y, [' t( r
while[ l < people ]
( k+ Y6 O6 c \- w/ _;;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- ?- O, z& f" b) u! T- L9 Z
[
7 t f' R D1 Y6 r& T4 _4 Rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ W7 p4 r7 p Z) d5 tif (trade-record-one-j-l-len > 3)
3 ]. \; m$ T+ `; h: g# E3 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
0 y6 s( O I8 f; L0 Alet i 3* N8 B$ B; P G. ?
let sum-time 0& j8 Z! l. T% v% B5 l# @
while[i < trade-record-one-len]) b- L1 n8 s; D
[
* o7 u2 @1 _/ l* s8 z$ l5 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% i9 G( b! ~' o, C9 J, S0 cset i
& n, l- C+ v. |6 N- J5 e( i + 1)
) {0 z2 \0 }1 [- |$ ]6 c& w]+ Y/ e9 X5 D( Z& u/ m% d
let credibility-i-j-l 0 d/ z7 m" D' p& Y
;;i评价(j对jl的评价), p+ p5 Q" D" `( y1 H5 k5 w7 k
let j 3
& _6 C W7 h# z- ^ I* blet k 4
6 D- \- o: }" n' W, Mwhile[j < trade-record-one-len]- e3 V) j1 |5 u! }; W
[
+ |) e Z) ]6 o& Qwhile [((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/ O' J8 b8 @8 W$ ]' p
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)
( i$ B8 h* b9 c1 B* J2 l$ wset j
. ], Y6 K4 [! Y' Y C& b: [( j + 1)& M D) n( N5 z. @
]1 L0 |- J. c1 h4 o$ T- 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 ))- S1 f3 B& _; K5 G- k$ W
- U Q# n8 Y/ X' u( \! T0 h
" v- N7 B B" R- \' Hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) `/ O- ?# c: r) D2 q/ x9 d
;;及时更新i对l的评价质量的评价# g; Y h; m7 K& }( u" r1 r; f( r' x
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 f/ K v# g& ]2 Q1 B' i
set l (l + 1)
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end9 z% g: w8 Y+ J
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to update-credibility-list
% o# U# n" p* R5 E, O8 `2 h7 klet i 0- W3 u6 l, k; @4 D
while[i < people]
% D0 A2 i! D. o[$ s6 Q) e& [9 e; T+ \5 q$ v: O
let j 0
+ R$ Y" W/ X9 N alet note 0
2 C& T# h$ F/ c8 c2 S; n% `2 Mlet k 02 y' l( _# f& a% q: p4 j3 y
;;计作出过评价的邻居节点的数目
& _ H6 a1 g; w& X/ }while[j < people]
6 i- _. P2 s0 V9 @[
H' M0 q" ]0 U1 jif (item j( [credibility] of turtle (i + 1)) != -1)
& o# K9 O5 q' d& e;;判断是否给本turtle的评价质量做出过评价的节点
' ]1 h4 [3 y2 Z5 E) q6 @[set note (note + item j ([credibility]of turtle (i + 1)))5 h8 V& d+ ]/ S
;;*(exp (-(people - 2)))/(people - 2))]
' T9 F9 b! r2 p7 A. L8 _set k (k + 1)
& c* h3 P5 O! G4 I& N' O9 F]$ Q0 q; @$ l9 b: h7 g: d: H
set j (j + 1)
' ~* V2 v& I# Y0 Z& h+ \8 Y]5 i. z. ~) f$ k- ]) n. D" n
set note (note *(exp (- (1 / k)))/ k)9 H9 A' @' T+ w: `" L& D* Y% n9 `% q7 Z
set credibility-list (replace-item i credibility-list note)& y, p6 h. @) G$ Z+ O) a% Q$ t
set i (i + 1)" D* a5 o- x+ B Z! N3 O
]* `7 r4 U( s& }. U
end6 p# p n% V6 H+ N/ N/ H! {
5 B. Q' X. ~& F0 g
to update-global-reputation-list3 h* w |/ r, a% v( W( }
let j 0% y4 D. m& x4 i% k) h# B
while[j < people]
+ X& \0 `/ \. p[* D0 z" O, Q# u0 E$ U
let new 0
# v2 X* |0 o: V: x: ~4 \;;暂存新的一个全局声誉$ p) m7 c6 o" [0 V+ G) m
let i 04 z" X/ A& V! h V S6 i/ v
let sum-money 04 S/ q9 ?+ y$ Z6 j; ^* C
let credibility-money 0' G3 \2 b' w( y3 f
while [i < people]
& t' h( o! V' Y5 E% t8 v[
- k4 {9 p J/ }" C. [& gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" Y! z7 H9 J1 V* X9 mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" k1 l* N8 b% {+ G$ V0 i0 cset i (i + 1)) x" X/ z* H5 \# _# O9 D4 o, S- Z* r
]8 }: c% I1 ?) v0 u( k
let k 0# O/ e, W4 I% K" w; p/ i
let new1 0
" K9 c& j$ j& ]while [k < people]
; w4 T/ x5 `# e- v# m$ |, B: j. }1 C[) D Q: Z: E: o) J/ 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 I8 v$ Z9 X6 S" y2 V: Wset k (k + 1), u* K7 [+ q9 Q) z( t# d
]
; N) q) X/ N V% E% ^7 H# dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! t0 ^1 T+ R- E9 M7 Cset global-reputation-list (replace-item j global-reputation-list new)/ _( Z& r- K9 i x1 c; b1 {
set j (j + 1)
9 N, Q0 D! L0 f. x, ]) |], k# H! }8 y8 Z
end
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# K# U1 V8 V0 S( t: Z P
0 [( J8 `" T' Bto get-color
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' ~. Z, D. S! J7 |set color blue
2 }) {% H, n/ }# \9 Q+ }" }) y. Xend
: l% M0 p, ?4 ?7 d- k" j7 E# w) ^; d" s: j. B5 B+ Z3 i
to poll-class
! v$ ]* ]) d& C+ k# e+ Zend
8 F4 g3 e$ f8 ]- y# B6 r
8 @0 ]+ T" L4 W, \( m1 I' d1 _- hto setup-plot1& @5 ?# b* k1 E. r7 [
Y0 b8 ~ K& b& v1 |6 c1 Vset-current-plot "Trends-of-Local-reputation"
) Z: P3 ?$ Y! p1 B Q7 a0 n W U& B) g6 X1 ^+ F; l) u
set-plot-x-range 0 xmax
' l+ L7 A; { Y3 T. o' @, d
( A' J! I6 Y# @( _4 O3 I6 Sset-plot-y-range 0.0 ymax V# g5 \8 k2 o5 N" r2 V' R
end: `7 j$ a4 E. _
|+ f4 v5 S/ c/ R# h: E
to setup-plot2' l7 A2 f, M0 i/ C3 E$ b
5 M3 U/ x/ Z* L1 Z" s) O) Tset-current-plot "Trends-of-global-reputation"6 s6 y# ?7 t! e
9 ^" y- g( V: A2 d8 dset-plot-x-range 0 xmax' c& k. {+ t2 ^. y6 L' i
. d0 K) r5 l) _) }3 I' U8 h0 p
set-plot-y-range 0.0 ymax
" z9 r& c4 v# {/ ~; J# fend& h0 ~# p: Y% |. L) U( x1 j- f% s* l
6 n# ~4 `9 D% `% |4 i% nto setup-plot3
3 A2 Q7 v3 f6 M9 |/ ], b; _4 B
( u4 S, M, K. }+ |2 Bset-current-plot "Trends-of-credibility"9 c, i' a' D* @3 @5 b: N
$ O/ \+ y0 L4 U/ E# jset-plot-x-range 0 xmax' e- w, ^: j) M) \8 G
6 B0 D* s6 N: u) Z" h. nset-plot-y-range 0.0 ymax
! _: k- [# z9 U. l Dend. z7 E- X( e o" P9 B
) m' L9 [5 s- g" T2 x' Ato do-plots: K- z, ?; n# ~; V3 Q2 m. T
set-current-plot "Trends-of-Local-reputation"2 D8 ^' }, h9 T6 v6 A, `
set-current-plot-pen "Honest service"
0 z5 I: s! M6 r: m1 cend
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; Z4 ?5 C4 [9 V. P$ B6 s9 F[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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