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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7 C$ a5 g, q) j
globals[
4 Y D! C! Z9 G8 D8 N3 oxmax! ~4 \, j4 _+ U
ymax' l6 j) |9 e& S/ i1 S
global-reputation-list* s* T T" }7 ^6 A7 ^1 t# N
3 B7 }7 Y; n+ @: E- I
;;每一个turtle的全局声誉都存在此LIST中' c: N( x, C2 D! i
credibility-list+ U) i2 o1 J) @
;;每一个turtle的评价可信度
" ~1 F$ {6 Q- v7 c' n! nhonest-service
7 l+ Y; C9 @' Y$ M( dunhonest-service
. F7 N0 `* h# d4 R) Yoscillation+ M- l6 r, d, P+ N1 b
rand-dynamic6 A5 O! m- R( h( m- `2 X1 N
]
. i) v/ i( B7 n+ {& t8 @0 g
. z z J$ K' P' ]) Z5 ^5 ?1 ^turtles-own[
$ V# [8 U* e7 Ltrade-record-all
9 u! E) X/ b; p- m1 Y) n;;a list of lists,由trade-record-one组成
( J2 H# V! @3 ^7 C6 n- htrade-record-one" f, X. P2 o4 d" j
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- B( ~0 q9 Z3 y d6 o% a
E! U; G* x0 Z! U. s;;[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]]
4 g' O6 F! E! N9 I0 r# U7 Ptrade-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]
$ [- S* [5 G ~% b- q) L9 Vcredibility-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% H! Z* H% X6 v
neighbor-total9 n; j; J8 [( L! Y& I. K
;;记录该turtle的邻居节点的数目$ M3 i; u# M7 J# k+ y3 H
trade-time
5 s Y6 u. b& _) R+ H;;当前发生交易的turtle的交易时间" @9 Q" }1 ?' O! T
appraise-give d' R% |1 n j3 X2 p2 U
;;当前发生交易时给出的评价, o/ v! g3 O6 ]2 Z3 t
appraise-receive- I1 R. o8 _. c& f" p6 _
;;当前发生交易时收到的评价) X1 s+ ~$ p. L
appraise-time
; }$ L- z6 u: \;;当前发生交易时的评价时间
. y; ^& `! J4 Z: _# h/ nlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉1 k& k$ x) G/ [8 n; s8 i
trade-times-total
) m# @0 E* J5 X2 o9 _, J- J0 I;;与当前turtle的交易总次数
& k5 l3 G8 J/ l2 Ntrade-money-total
1 K/ q7 q9 y$ ~" a;;与当前turtle的交易总金额, b3 E# `1 s5 |2 }( ~
local-reputation& k( W9 w2 C/ S" I/ {
global-reputation% ?! i) h% s% O1 P, `* b, X4 h
credibility. u7 J3 x0 s! v
;;评价可信度,每次交易后都需要更新4 B) j9 \7 f8 u3 F
credibility-all# G5 v7 _# L* q/ @$ E$ o
;;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
+ l- C( w" c; y* D* X5 G% J0 r! i9 h) `1 G: A8 n9 c, ]; 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
+ N- A' n5 P' i9 h9 ^% U$ Mcredibility-one" e. t( c' E9 [' T
;;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. V3 n: n8 w7 e3 ~) Z" Q
global-proportion
( i0 y# t/ [1 J& ?. |customer/ n0 n/ x8 u8 A4 ?: ~
customer-no
3 T9 C& q7 g4 |trust-ok# L+ H, I+ l Y) b
trade-record-one-len;;trade-record-one的长度
/ e- O" H6 j7 {6 S% D]8 H* o0 A \ F8 i; J# h4 U: A& E
2 g; e9 t- A. e/ ^- K* w6 c) ]) W;;setup procedure
2 k4 L* T R/ D) n2 p0 P3 o& @( a* h4 W
- A6 D$ X, D1 c# ?' oto setup
P5 v* }1 c c X$ H* i8 W; m5 w5 f
ca. x! Z1 I4 }, c: j
6 M; w: [1 y+ A/ M% g% \. @5 \initialize-settings
8 o" l% f8 z" Q8 B9 l' H+ q: l+ v3 g, B
crt people [setup-turtles]5 z. ^5 \/ ^1 x( ?. ]
: ]8 V# p, g; y- _reset-timer8 s( Y9 q0 E" B
% ~9 L$ S) I9 u9 E) d/ s: T1 qpoll-class
- H- x. M9 g: M, N; E- ~: B0 g8 q! {2 ~% `0 I
setup-plots
- ^' s* F6 V- F/ ]+ L X$ ^( T- Q7 U( Z
do-plots/ t7 L3 L9 f- A4 u& m j
end
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# _% B. D/ R3 V* k) c$ Nto initialize-settings
. n. v; ]+ H L! f: Y
5 T8 i! a8 ?+ b, R5 H/ O4 Mset global-reputation-list []
2 {# y) [+ `% P: k' e S5 U+ S: J4 g! F7 S. w+ z
set credibility-list n-values people [0.5]
2 D, M; {$ \' }! ]
+ v% [" D" M3 a2 `- @/ E8 p2 J( B# Lset honest-service 0
1 S& v4 r s. B1 Z+ |# o, ~6 h0 s; K9 {* F& M; k2 d! I
set unhonest-service 0
0 g. @2 E" }' a- X; X2 T5 c& }& {$ p: |/ d) i. {7 i* ]% G& l4 @
set oscillation 0 h4 Z% v) [, @* S0 u& X! L, b3 B
* [# a) j! H7 T: j6 U' V9 `
set rand-dynamic 0
5 u5 B9 E Z6 J2 x% V1 p+ l6 x, D* qend! T7 b# H7 z" v D
( L8 w5 m/ @5 K( t( v7 Y% I/ \to setup-turtles ) a; G' E- y3 Q6 q* r
set shape "person"7 n3 w$ l3 C3 E" y' L
setxy random-xcor random-ycor
: v: q1 D! v- A% Aset trade-record-one []5 j. q0 i( P$ ~$ Z
6 E7 r6 @' [5 |8 y# o
set trade-record-all n-values people [(list (? + 1) 0 0)]
- b% h$ U; ~" K, \/ C6 Z& h
3 i {' B) l' r0 a. \/ u# rset trade-record-current []# w6 @2 j% g8 A8 {( A
set credibility-receive []: p$ f* ~/ X) s( N5 [9 v
set local-reputation 0.5) C3 S9 w6 v0 t! \ H
set neighbor-total 0
' R% \9 M' }# _ A( o) Gset trade-times-total 0
1 { C& f* t7 }. \: K7 Dset trade-money-total 0+ k! [8 W" Q2 k8 {
set customer nobody
: k4 H1 S0 t% k O) p# A5 `: gset credibility-all n-values people [creat-credibility]" w% ?8 h1 E a7 d
set credibility n-values people [-1]5 W) z' |* r$ K, a
get-color
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% W" l$ w5 H# G z+ B" m$ Vend
, {) p2 V) g, x; B( S1 g* M1 e+ m7 A; R9 y1 c
to-report creat-credibility% e9 C$ F4 x9 Z7 x0 J8 M# X- w! W
report n-values people [0.5]9 P9 P, Z9 s! M
end- G) p0 E$ t4 B3 e' y
7 p& S( r5 O9 [ M% ^% i/ o' _to setup-plots
( O: e, i. ^7 }+ N! q7 m
; k( ~7 s+ ~9 Z$ j$ Dset xmax 30
" S: Y, A6 K' b- N6 |3 I4 Q. |% K1 D/ d: S% t" x/ V
set ymax 1.0
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clear-all-plots1 ^' Q6 |- d& `& A' F
6 F0 _0 v: f9 _; b9 `3 @
setup-plot1
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setup-plot2
I- H0 w* J; I' x; \# A3 S: }8 X5 x/ Q0 e4 }
setup-plot3
' ?9 O z: S* N; _9 k" E. \* ~end
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m& E) q0 F. N0 V' A;;run time procedures. e7 l8 H: F1 k$ r9 A2 x
4 z. `5 f+ T7 W$ k7 ~. { uto go
3 |9 w! D0 v" `3 r4 s6 }. N, H% n! Z, O! U1 `
ask turtles [do-business]
1 w6 c0 e# _' i5 E1 R; L: gend/ b: F4 ^( L9 L, x
4 g3 {" p. _5 n1 ~1 W
to do-business
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1 F& a8 D- E3 O& @- y b- `$ S& \. G
rt random 360$ ?9 a0 \/ ?' K; d' n
8 \0 g" V, ]" m" Y% j. dfd 1
7 w! p& z" e* s
+ c9 I1 ]+ s2 o; A) oifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here/ r" I0 I( K& w2 E$ g
. X) V6 Y) ]! ]. k4 `" @
;; set [customer] of customer myself$ }: g! S$ O* f# f* @
w$ F8 `7 Y6 R
set [trade-record-one] of self item (([who] of customer) - 1)
( {+ N1 d' L! y U- E2 C# f6 T[trade-record-all]of self$ S( ]1 Z. \# S/ S( o/ ]
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 M: S" J, b5 k% e' @; Q* p- D7 f! H
set [trade-record-one] of customer item (([who] of self) - 1)
/ n W) P9 ]8 Q2 N) \+ _2 L1 ]) U8 ?[trade-record-all]of customer
! S1 |8 J, V9 g
5 m* W# ^& _( C$ ` v8 ?set [trade-record-one-len] of self length [trade-record-one] of self
& }, M: W6 e. a- k8 h1 K- j2 ~2 \: i
, D- K1 i1 ~3 [) tset trade-record-current( list (timer) (random money-upper-limit))
! w" |) h4 X, a2 z; B- K
: E% I; n) V) P" Q& X6 n3 z, ]ask self [do-trust]
6 e1 W9 R. ^) U;;先求i对j的信任度$ g I, R p. ^
/ v2 g" K" t% W! T/ E; f; Xif ([trust-ok] of self)
0 m. [3 e9 G4 k6 M+ g$ I+ C0 };;根据i对j的信任度来决定是否与j进行交易[
& b( V9 U8 M S( d! m" i' G0 Fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! { @# t$ a) t: a. ?
" R" h5 d4 O, j; s+ r[
4 a. t( ]! x3 r3 n( x: A- S+ V* w5 Y5 d$ |, L# `3 p4 U' S
do-trade
+ J3 A, O5 F B
/ P" ]) Q" u8 S+ b* Y F' Zupdate-credibility-ijl- Z+ V; T. l2 r
$ L9 X; o& m0 N8 n2 Y, `update-credibility-list
! n' t9 G! k+ h* u& ?
9 n ], ?) ?% v6 o; p- e
5 r. x- L6 u; F- c! Y2 m7 F7 ~8 H4 hupdate-global-reputation-list9 Q( ^3 ]& W3 z7 w' u7 L
* Y0 c) H. x; d
poll-class
( [: A8 ?: Z3 x5 t# u* U1 v: o+ k7 e! m2 u9 ]' B5 E5 h; E
get-color* f1 H4 P7 ^ D+ g6 _
$ a( o, l, v& } z% r, U* K]]
3 H! c0 W/ _ `3 k8 Y* R/ R
9 t: v7 t8 g: G9 e5 T;;如果所得的信任度满足条件,则进行交易
& ^4 [2 N; m$ G* x4 h$ l s
- r& k' h1 a$ W5 I. s; [[& Y; t" w1 H( R
( F4 o6 u8 {6 r8 p6 {$ H
rt random 360
8 s3 y+ V! E* m7 n8 q" f" r% k- _( r6 }
fd 1% F/ N6 H" n% F( S6 i7 y
& m1 j. J' O+ j" m u4 F1 @
]
; V1 P* Q2 t6 s; q$ F" C/ `4 `; y$ H. \
end
) K/ n9 p8 j( H+ {- l' d, j
' r% m+ a3 y7 w5 r+ J6 Ito do-trust % h# W+ Y9 g9 o
set trust-ok False
- n6 I i- ]9 e. G3 \& p0 h# h# k/ u% F
- m$ s% v* u' \3 t3 `( blet max-trade-times 0
2 I7 D. T, D3 l" ]( `0 w. ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 E) Z. Y! t3 H, R, k
let max-trade-money 0
( U8 c+ f& P( W: wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 o5 K# d: R8 g. n$ Tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( L, n; X6 G" n3 ?+ @6 E1 u
' t' X% M/ U! H1 {! I* j* h. g; n( V1 p' J$ ^5 d3 e8 k. W
get-global-proportion
7 E( t# M/ a3 E5 y# w! O& g: [- alet trust-value) r( |# Q. Y% u; |& { t5 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)5 Q9 B$ m1 z0 D$ T6 f* A
if(trust-value > trade-trust-value)
' v; l" v2 a0 A! g5 S[set trust-ok true], K e8 P/ o" l( G
end
& k' W @% }. n' ]
+ F* O2 w. D' W+ j7 G; Gto get-global-proportion: F _& O+ F0 J& r. F2 m, }
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- T6 s& }9 M" _# I* n2 a
[set global-proportion 0]
! ^) |& p3 s5 Z$ E[let i 0
# u6 c4 J/ \( F8 Tlet sum-money 0
8 z! ~# m; N2 Q. Nwhile[ i < people]- d) o) F0 t7 p+ T7 C: W
[
0 b" j* L0 E+ I+ E# K2 d+ }# t) _if( length (item i1 e# z5 X6 N% N* [0 m- U+ u
[trade-record-all] of customer) > 3 )& Z) |; M I/ _0 q; b
[, I- T( k) X, O2 k' x1 J) @5 a
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)) m$ S! |/ H6 v" j
]
, d' Z- f& S. N- P/ L4 N]
! r9 G5 L/ x: O1 r7 P$ K: Blet j 0
' g1 w+ ]' h( B3 x0 B0 Jlet note 08 d% x. @# ]$ J' e
while[ j < people]
7 v2 {: }! H9 f# q* g; Y[
' o9 H0 B9 m a" C Rif( length (item i: W/ U) e8 S, t7 M$ P: ]
[trade-record-all] of customer) > 3 )
5 t9 l1 }8 c* d! n[
1 j# M3 E% S& D# v5 nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# L$ n+ t, N& Z4 Z6 i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* y9 h+ G* S8 w[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 q/ V7 p/ I' k/ {9 X]' N8 j$ w* p/ P# k7 y
]$ a8 s+ T7 C2 m* ^. S
set global-proportion note& z B8 J# d0 T" n) E* q
]
) X D; u/ k+ M( q8 O; |end
! u; P2 f& D5 V1 {" `" O- o' o& V4 ^9 \9 {2 `
to do-trade
0 l( E: X) q$ V( t/ f6 y;;这个过程实际上是给双方作出评价的过程: Q. ?, c7 I, k8 ~) A6 ~1 b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) o, B8 {* B* U) ^/ xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. [2 X! I4 f5 G8 `( |7 H
set trade-record-current lput(timer) trade-record-current
0 J4 G* K6 l5 g7 x7 W' q;;评价时间3 F$ b& U1 j: g5 P6 |& F. I! V
ask myself [2 c T9 o, X4 J
update-local-reputation
; ?; k, e" l8 K" Eset trade-record-current lput([local-reputation] of myself) trade-record-current
! ^. i$ g( u; L' J6 X3 F]- B+ S. B' G8 L7 x2 G" I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' f3 m0 b/ o3 n
;;将此次交易的记录加入到trade-record-one中" o0 k) I2 B9 @) R* G, @, L4 a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ W0 R; W8 |& ]# y0 {& Xlet note (item 2 trade-record-current )
' p9 q* n, A! pset trade-record-current& ?: X7 |5 }5 |
(replace-item 2 trade-record-current (item 3 trade-record-current))
- u+ @( k) z2 s5 m& \4 H# {set trade-record-current
$ l( n; ]2 { B8 z$ z- x1 x3 a# A(replace-item 3 trade-record-current note)( X$ t% h9 J! d; u) m' H7 {3 @
- ~0 r0 \! U# f5 l5 Y$ R
! G7 {" Z1 s$ ]3 q7 W+ aask customer [4 H. k: Z. Y3 Z1 w" w+ [8 \; _
update-local-reputation
+ D3 c8 ]% V5 J" N) l$ Aset trade-record-current
: e V/ V/ J& a( W(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! G) _, A) T# Q% v) A]
$ f8 a" a' d3 }. C6 T
0 m9 k' e- {: b) o- n* ]4 d4 d- y) V0 c7 W5 A1 e
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: o4 K2 v; s4 }; N/ i" B3 ~( M" p ]1 I
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 |3 F6 _$ g$ Y6 g' |
;;将此次交易的记录加入到customer的trade-record-all中
& G. \; v; u' T% @2 {% o; z9 m H: Jend& v- g; l' b* b; e( F+ {& ^8 M
9 o, n$ N5 O! J' D" k8 ~0 C: _2 [to update-local-reputation
& C7 q- G w. a: Z$ C& R i' v5 y" kset [trade-record-one-len] of myself length [trade-record-one] of myself2 F* B0 m. K: d9 d5 d& I
7 P5 E; Q1 c) L1 d5 L1 D5 g8 ]8 l( i! P4 @
;;if [trade-record-one-len] of myself > 3
) T! N3 O6 B2 ?2 Y5 u/ t0 R! `update-neighbor-total, b/ N' ]1 ~4 h0 ]: u- X1 g; ?
;;更新邻居节点的数目,在此进行" u" K! j" k3 j: e- z$ M/ |
let i 3" ^3 I/ F; ]1 J/ [
let sum-time 0
: J5 l. }# X. Lwhile[i < [trade-record-one-len] of myself]
- W, ~/ Y5 P3 u, H9 V[
! S/ h3 D4 B, M+ uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 p) U. Z) J" J! ` E% ~- ~$ ^
set i! X3 T: [6 W2 A% e/ }% r
( i + 1)
' B. B& w" L. f6 Z: O]
) J8 x8 E. C% U" O6 Y8 nlet j 3* U' a- |2 L9 f7 ~+ X8 V
let sum-money 0" X* s1 y. K8 J. m5 @# W
while[j < [trade-record-one-len] of myself]0 g7 x, |! S# n, f8 t% k& y2 u7 @3 q
[5 t6 i; a: N& j
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)9 j2 l2 U x+ A4 ^4 o, x1 }+ U& @
set j
1 |9 h' X4 M- d } h( j + 1)1 ~* |$ O0 @. X7 h) w8 ^1 _
]0 c+ a, Y6 `' ]( J! v
let k 3+ p" I$ c( T+ A5 G% |1 X- m
let power 0
) r: i4 p' r8 t0 A9 ~" Rlet local 0
3 U- q) J' J% F! Y7 Y" H- h }- cwhile [k <[trade-record-one-len] of myself]
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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) ' B0 M( Y7 C8 g1 [' i" ]
set k (k + 1)
$ r% Y+ `) ]0 j. ^" [8 ]5 S]
: a7 S! a7 a. j4 ~; O- q4 y+ \set [local-reputation] of myself (local)
& ~; x* ], G( z' u% H% |end
/ f( z; ]) @( D8 b7 c2 Y- S! `: S$ l! M8 {7 n
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 @- _. A ?; ?# ]1 y: s2 M1 x6 b
& \) D# {( G4 ^* ?1 r. N4 Z* U' I3 M) i
end) p5 p1 ]$ R5 ~+ w
9 m7 g1 Y. e. m! A$ ato update-credibility-ijl ' F0 A7 Y0 G' k2 E# a3 e; B
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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。
8 ]$ l7 A& r3 ]9 p7 E% Vlet l 0( v1 a* h1 h, F! i8 l: [% H
while[ l < people ]
9 h4 c. H* x u& i P: b# l* k;;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- N( ?3 b8 N8 ~4 }6 b
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ Y7 r7 x* K4 e+ J( D
if (trade-record-one-j-l-len > 3)
0 s/ Z2 I5 M9 ]5 q" k- L. `, 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-one6 D( |$ F& e1 w" h6 w3 s
let i 3; j$ z% S' ^% O/ c5 a$ A+ v* ?! _
let sum-time 0
; C' n* e! H* w" G# `& _7 kwhile[i < trade-record-one-len]! M$ Q% w$ E& ^' j5 C
[6 ^) z) ^, |7 \' A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ ?: B# `. a3 ?1 J
set i; A9 w7 s7 O0 | u! H
( i + 1)
% X- S o: Y, j- z; |]; ]* ]+ \4 v7 G$ W
let credibility-i-j-l 07 y4 p& s% z( E& G9 O
;;i评价(j对jl的评价)& W' q7 I0 x7 l. w2 W' v" ^
let j 3% c* q& c. N( P
let k 4
6 U/ u# z, K1 Rwhile[j < trade-record-one-len]! d* O+ v& f0 I
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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
' k6 o l/ o: L3 ?4 Z& Fset 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)
. j4 i* N& `/ p, N5 e1 K0 xset j8 Z9 S$ r$ Q1 B& X
( j + 1)
# C. C' X& j3 r$ ]" o]
; c, d& a, v0 k0 Rset [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 ))" D |1 P" y: p/ b) s
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% P. j7 u8 k( \ C0 Y+ ]let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# i5 K5 x' E! t;;及时更新i对l的评价质量的评价
6 Z7 g, a" l4 `6 c/ jset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ k6 k# P1 |+ {) Y6 aset l (l + 1)
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end4 x& `' T3 P2 |
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to update-credibility-list
- J. F0 t" n0 I7 E/ T+ a* A7 Wlet i 0- ~. t- O: q9 \$ {& a' [
while[i < people]
; ], O5 D9 |& F1 ?5 V' c[( m+ D. ]: R$ Q4 g& a) o8 p. [
let j 0
2 e- X% ]$ ^1 ~9 [ W; ^. Dlet note 0
^/ I' L( N. |: h* p8 A: ~* y% alet k 0
' F9 ]$ o2 n/ a;;计作出过评价的邻居节点的数目! j" F$ G+ y9 d' G
while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
9 _1 j( q3 w7 X;;判断是否给本turtle的评价质量做出过评价的节点& v5 o! H" W$ s: L
[set note (note + item j ([credibility]of turtle (i + 1)))5 Q, U. H% L9 J; \
;;*(exp (-(people - 2)))/(people - 2))]8 A; {0 e0 w" N/ \* Z0 C% ]4 }, v' ?3 z
set k (k + 1)0 F. f0 A" C! {7 S3 p; F8 q1 D
]
& P" U. t4 Y5 S" |set j (j + 1)4 I: s: U Z' s/ ]9 R8 h8 h
]
$ U9 U* x' T8 D1 p# x- qset note (note *(exp (- (1 / k)))/ k)
' F/ `0 z- x1 Wset credibility-list (replace-item i credibility-list note)- {- Q5 j/ Q5 l1 T4 r' f: ~+ m
set i (i + 1): X9 A% Q2 e/ m: l3 Q+ a
]8 ~, ]1 f) M0 A' y
end2 F) z" x. M! U& s
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to update-global-reputation-list) Q/ w0 s% I. \/ t& A5 c M* E% T
let j 0
z, [7 E! ]1 e7 M1 Z+ Owhile[j < people]7 H) g' Y4 i) g7 G6 S. V
[7 u! k2 c5 p$ Z" a7 D, F
let new 0
( A7 ]" C. T7 x; D' b& M;;暂存新的一个全局声誉
9 b* N0 T) d: u: `5 ]let i 0
, n6 P8 u; a F: T: p# j- Z! alet sum-money 08 b+ m2 u( A0 h4 l5 L* z4 B2 u5 u# s
let credibility-money 0
! U1 Q! o" _% u& S) M2 [' e6 R- j) zwhile [i < people]- n7 j8 Z* n* C$ A2 W& Z2 G
[
7 y8 }% C6 g) C4 h, ]set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 ^( M: L+ Q1 F0 s& W0 k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 }" R( M6 q& [- B6 h+ V0 p
set i (i + 1)' A+ s# _* W9 B9 R0 s/ E; A
]$ t; _7 G S+ }# v: D
let k 0
, U. ? x0 b) @+ J- I% y3 E3 k1 zlet new1 0
0 H3 f6 C# J! @4 X/ g8 ~while [k < people]
" Z/ q( m/ m- n5 J% L6 \" z[1 m4 h* \5 P1 l6 c( ?
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)
1 f% o. H. k# L" ^0 A' n0 c) @1 vset k (k + 1)% z3 S! }' r8 x0 V1 Q- V
]5 V9 n. U K) p/ b9 H
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " T1 T- M. [. A: e) {: t
set global-reputation-list (replace-item j global-reputation-list new)+ y, q1 W1 [$ p( k( z/ x2 k
set j (j + 1)
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) i k' J$ z3 x7 y8 \: J0 ^end( n- j1 |. b5 |( i, t
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% b% X6 U9 H2 d# N( ]* {
( V9 R" {, D4 x# q' {
to get-color6 G) p1 _" _3 Q( x
2 a/ }. r& v' s" X# j3 t @1 J1 y
set color blue7 P5 S) l5 N- Z8 ^; p- i, S+ F
end
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& t# e: |/ A2 v5 \; f+ zto poll-class" S X( {. V6 y( m
end% e1 d0 r$ g. C, N" Y
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to setup-plot1
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* T m/ `3 r! @5 i0 \, w% cset-current-plot "Trends-of-Local-reputation"
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. }8 ^' n9 g7 |$ t: }set-plot-x-range 0 xmax% `2 ^7 t- E7 {5 f3 q" y; f
9 b- u: Q, m2 a, M* E/ D0 U
set-plot-y-range 0.0 ymax
4 [1 e" ?+ a1 Y" r9 w- h oend3 z, {0 \3 X5 m. I: R) N- ]( G* J
$ e) w G& [. e& U& ~) t* |6 Fto setup-plot2 f. e2 D. z% H( R: ?, I! Z- z2 u
2 {# H. @" ]6 J4 e& lset-current-plot "Trends-of-global-reputation"
5 h1 u8 w0 ~' O( ^9 J( M
# k, R d! E- Y; Nset-plot-x-range 0 xmax
6 e$ }, Q0 K6 H. @8 x1 [
: t; W# O0 W. f8 e' ]set-plot-y-range 0.0 ymax- q3 `+ k3 t3 _7 ~5 j2 M
end2 o2 {$ L& u4 h3 p" z9 b/ I
3 z0 B! Z6 K+ k o5 h3 ?& _to setup-plot3
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set-current-plot "Trends-of-credibility"
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. E9 j# c. C0 r( tset-plot-x-range 0 xmax( r3 A& s6 x' ]6 X0 ]' c
4 u6 B3 e. z) [
set-plot-y-range 0.0 ymax5 V. K4 \( r8 G; b8 H$ J i- k
end
% i# t' L) m3 F# G | V" T T
% l" o# Q$ V) M' k9 R# o3 Hto do-plots! L" l6 o5 F/ o% d3 G) e
set-current-plot "Trends-of-Local-reputation"5 |2 ] i5 I* C- Z5 r0 J% ]& R7 y
set-current-plot-pen "Honest service"/ n- M) r! E5 j* R; w6 H( w9 l
end
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* g- |' R! f" T[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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