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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8 W7 ^' I: F+ B+ c6 {8 h
globals[
5 f& p g K; F' \2 Z( ]0 a& F* }. Lxmax3 P# m2 A/ |3 D2 ?/ S5 D1 }
ymax% F4 y/ R. b' E6 _9 Q
global-reputation-list
$ O+ O4 F- K5 q8 n5 k2 X* n; R
% f3 P. J/ O$ V9 O/ S( a;;每一个turtle的全局声誉都存在此LIST中6 P" Y7 ~* `1 n
credibility-list* G( s4 l. j; G/ b6 v2 M- S
;;每一个turtle的评价可信度" F$ z( ]$ \- \- b- P0 g
honest-service* }5 i v l7 O2 k I- D m
unhonest-service
. L) O9 Y3 R7 c8 xoscillation
% @/ q8 ]! g; h; _8 O# d8 E: p, Hrand-dynamic
4 j$ M/ T. ]3 f]
3 M* c6 D i4 k* J: L# ~8 B
2 b }6 a. {; ]turtles-own[
# |: U1 { V$ v. Qtrade-record-all
2 d8 Y$ m' @2 c9 a, p! r;;a list of lists,由trade-record-one组成
2 Z! c/ N$ w h! B+ N+ z0 otrade-record-one
7 d0 T {3 l6 X( [* K;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 e3 X R9 m F* @ z
5 y; m6 c" _2 M5 ];;[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]]
7 k3 T. c2 ]) ^2 ~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]0 B' G% b" d, d/ U" R1 Q9 i
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
; V/ x1 d% M- R* I- x+ ?neighbor-total
8 c9 {. Z: }2 {7 \! O0 c9 L- w;;记录该turtle的邻居节点的数目
5 f t! R; `5 |5 k* [7 a0 L" atrade-time7 K5 i( w, S: T
;;当前发生交易的turtle的交易时间& h! L+ z+ k) }
appraise-give$ ]- o; V5 }: O e
;;当前发生交易时给出的评价
5 k9 X% @1 G1 |: E/ P: J, H: L) B# i7 nappraise-receive
( v# B. [: x+ T/ l;;当前发生交易时收到的评价; ?- m( ^% O8 t
appraise-time
" Y# S5 O) E9 l1 O3 r7 S4 J9 f;;当前发生交易时的评价时间' S( M, M3 r' O, _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉/ K4 w" C; @3 l" q" ~, c
trade-times-total
4 J# K3 v- X: j% B2 b" l;;与当前turtle的交易总次数$ S- g" B5 G1 p8 o, X8 d1 e+ a
trade-money-total
+ p4 T$ _& [, o6 ~8 L% _8 Z;;与当前turtle的交易总金额* y; P" |# P* [
local-reputation2 @- D# t: u9 _
global-reputation4 \! U- S; i3 g2 F o
credibility. r0 X/ \# D) g* a
;;评价可信度,每次交易后都需要更新
5 P' c K3 b. B/ ^" R- Pcredibility-all: n+ ~$ n2 J% p: O" e' v9 |
;;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
/ {% f+ t& l Q
/ \; C6 f/ ~ {# L1 V;;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* ~) u' m4 v: {" \
credibility-one
! K5 Z3 b8 x6 i% H, K, T7 Y/ r4 I;;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
7 e% X' P/ E. l" Qglobal-proportion
* }9 W; g/ X' t2 Y6 \1 Ecustomer0 {- l$ z7 c3 J0 _* l- a% c0 u
customer-no, A6 @. B9 U2 @/ a, U4 `
trust-ok( q+ \- t6 Z F' `6 a
trade-record-one-len;;trade-record-one的长度8 Y- O5 V/ {4 n9 N, f+ k
]
2 B# [+ l) v0 y6 |/ `7 X! J$ H- {$ x
( C: K1 }- {; [$ a3 J3 a;;setup procedure
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. k7 w" X! P; v3 B- Y6 E6 h& Tto setup- f9 r+ q$ V5 q, z j9 R
8 h% M' M' i6 ]' ~1 B# P" vca
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initialize-settings
5 b3 ?0 X% o: m; n/ P2 Y
6 d2 @1 `2 \ E* Tcrt people [setup-turtles]
3 r6 p4 J$ B) T, F6 }( b
$ g. Y7 C) L; i& Jreset-timer
7 o% H F9 n! e& N* Q' F; T, _8 y% x" C5 Y% Y
poll-class
$ q% P1 X) W1 E: e0 l
, c0 l+ y* A" v- Y/ _setup-plots
6 |) M( z+ v& W5 h D; o6 M# ]5 z3 s+ |
" U+ T O: d' F" p2 Q; J, [do-plots
) K$ _. l Q0 m# `% Q! a9 G- Aend
3 F' ^. J. f6 O3 h/ N6 j" Y! E+ ~4 q( r {
to initialize-settings
2 v6 U" M0 z, ~$ ` a' K9 H- d" c- R3 s& H$ M# q
set global-reputation-list []/ K7 Y/ l; W! V7 U, u( Q+ |
7 h2 Y9 |) ]% S* c& A6 fset credibility-list n-values people [0.5]
7 L7 [5 S! B" w2 I1 q
+ D% h- |) z3 H3 @7 y: qset honest-service 0
. B$ H6 c2 `" l5 @7 U) o3 r3 n ]: b. E. W1 s p ^5 p
set unhonest-service 0 B5 Q+ T, w$ b! L* k9 j6 \. o: d
/ { P1 h4 L, X; ?
set oscillation 0/ e6 P( M& p7 N0 I, i
- S* Z" }2 s# x/ ]1 t% d
set rand-dynamic 0
$ E6 f5 G8 [' Nend0 ?; ?' ~; \% U6 x
1 B- Y8 t) U7 X5 j" {to setup-turtles 8 D7 S0 w# U9 a3 A- W% i: e
set shape "person"
2 @) I: G; d8 ?9 t( tsetxy random-xcor random-ycor
) Z! R: o0 M3 @6 L3 V( ~set trade-record-one []4 X2 X% s- o7 o5 U
0 v+ \" `4 S. ^) y/ X1 @7 F( }8 sset trade-record-all n-values people [(list (? + 1) 0 0)] 4 H, k: j+ T8 f y# ~; u1 ~
# t! N+ y9 ~2 u. m; z! Xset trade-record-current []
6 {% ]( ^! f7 c& Z6 kset credibility-receive []
4 C" L3 B/ V% I5 h" r* Cset local-reputation 0.53 @3 A0 ~+ Y9 }$ z2 w
set neighbor-total 0
% E1 s5 T1 ~1 \8 nset trade-times-total 0
% d" H% O$ _8 f' {: i: Nset trade-money-total 0! ^) L W1 r4 U
set customer nobody
* i* F# p6 |5 Y3 Cset credibility-all n-values people [creat-credibility]. |9 e8 n; v0 n- e8 C L+ G$ F
set credibility n-values people [-1]
+ p0 S( h3 ], lget-color ^$ f$ E2 x; \& c8 ?
2 Y$ j1 c. l8 c, c* V) o' w; Iend
`. v* A. O; m' y9 L; D- s7 Q0 \
# D0 H% F6 Z, v( L b. q+ ]. R$ G3 Eto-report creat-credibility
& w0 D. I- N8 a! R+ ?: v! i+ Ureport n-values people [0.5]
$ U4 b& `* U; ~) b2 s8 g6 E* rend. h# s2 I6 Q7 u3 n9 [3 P
$ w- P+ x# F* Z' ~* Nto setup-plots& h$ ~9 X. x, s+ x8 H+ C9 B5 g, K
: d6 R5 w* m0 r, a3 ]1 j
set xmax 30
( _/ Z. Y* F5 U$ p1 [% w3 w5 X% N, L
set ymax 1.0
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clear-all-plots
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setup-plot16 z9 Q( w* e2 B
. g4 S$ b/ q! u& dsetup-plot2
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$ r; G" b0 m5 J4 f M0 Wsetup-plot3; {' m) D/ l# b( b& S4 i
end% Q8 i7 I' D1 w% V4 t/ O) _( `
: D' C: _8 A! w8 M- @! M5 z;;run time procedures0 B1 g+ D" W! h5 v* L6 ~
K+ F' [6 r* ~$ B. J! ]: } tto go
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1 ]; U2 b. ?9 t/ d: ^! M( Q5 xask turtles [do-business]
% Q2 M0 S, f9 ~6 g: `4 Z" B0 oend
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, D2 v* v1 c- X5 a( g" R5 {" Uto do-business $ i" ?& b, x9 i7 \% E1 J
& }& [% f. @. E4 \& R1 `+ Q1 Z; B# I
* }; s" i- C; Y9 zrt random 3600 b7 @: u2 C6 ~& v6 s
* c9 t1 [5 s: t8 b! X: [) W
fd 1' Z/ @+ z C/ s3 r" U
5 f# T* P# v3 S9 H6 qifelse(other turtles-here != nobody)[) y% o; ~5 G% p0 a" b- ]3 z/ O
1 p0 D% f6 b& 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)) \6 I7 O, _7 Y. d
[trade-record-all]of self, e: O7 k# _2 y+ E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' ^2 p6 M) L' A7 k0 K) V7 ?9 \3 b% L" [4 a7 L- r) w( v
set [trade-record-one] of customer item (([who] of self) - 1)
3 {! h. ~+ }) ]" S2 o[trade-record-all]of customer
6 B4 _0 W2 X8 E" |- ]1 ], k* x* C! f2 j" {
set [trade-record-one-len] of self length [trade-record-one] of self
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& g. G8 i1 g& W9 U6 [, k) Aset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
* H$ F& t3 ~' |$ F v/ K; C2 ?;;先求i对j的信任度
7 R% r; e4 X4 r1 N+ P
0 ?2 f/ T, z* v1 P- bif ([trust-ok] of self)2 O$ t& I$ I/ R5 J4 N& I1 k9 v8 H. I3 w
;;根据i对j的信任度来决定是否与j进行交易[4 q' c# [+ W; f
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' ^* G4 K3 a2 q/ D
9 Q- c) B! [( k% U, ~ A[, q2 h, E0 ?- T! B0 ^* }
- e9 D% m5 ~8 A' r+ ^do-trade! M& r" U6 E3 }- C/ C
7 X5 `4 V' ?$ M. Q
update-credibility-ijl4 ^& y8 x. r$ U! u$ K4 P
& S- [+ g- o6 \/ L! _# N! [update-credibility-list
3 Z! F7 h. z" P9 ]9 d5 X9 N- j8 g7 x' _. |
+ @4 Q b0 ~5 a- Kupdate-global-reputation-list* \# b2 _ U2 x4 ]* B$ Y
7 }& w7 F) Y( }& L
poll-class
0 R/ }1 W7 f) o9 o0 N
0 e$ `; w0 e3 w, }) @get-color# V# r2 l3 x3 B- Z- X" U8 ]9 W
0 I( j. O B5 J) `
]]
l3 g" b* `+ V* ?5 O; Y9 S
/ |+ h: b; J+ z" M4 a. L;;如果所得的信任度满足条件,则进行交易& a: H# f2 [1 O% {3 Y7 `
u4 I% A6 n3 U
[
" a0 E- h: C4 n# u2 p2 d3 S+ Y+ g2 i2 s; r% Y: p& @+ v( y
rt random 360# k0 Z9 @0 D9 c( T* X J5 H
2 ?9 P7 P. ^% v$ u. D# W7 ^
fd 1" b; H: {* X. h
* O3 B4 L0 P+ B" n4 {+ C
]
# X3 B- G o& w$ x5 C/ s% |; m
end- b, w# S0 Y% d6 F2 }
7 g, h/ f! A; U& Uto do-trust
6 P( F& P; t' h4 H. M0 e2 |" Qset trust-ok False* P- F' M9 t, |( }
4 Z5 V' Z" M+ e2 ~& X/ n7 [$ }4 u. t9 ], p Z3 T B% t1 m z
let max-trade-times 0& f0 A9 I6 Z2 ^; S' w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 V! p# Y' T" V5 v* v6 llet max-trade-money 0/ `2 q0 o. q4 d/ K4 u
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: `/ p! l) @2 l: r9 ` S% j* Zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% B' ^3 o' f5 \% @
& a# p' c# w! r, H
+ }4 Z% j n8 H# O. c& [8 |4 E" X
get-global-proportion
( w g+ J5 N! R( O: xlet trust-value
( O4 o4 k5 Q' b, X! Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list) A8 s7 N1 b9 p; v) p9 {
if(trust-value > trade-trust-value)
* Y. Q, c3 I; |: _/ m[set trust-ok true]
; k) d4 c5 O$ A3 x: v3 v7 xend2 I1 I9 J# R8 o* @) j) @. R8 a
- c- z3 h y |) p7 _' X
to get-global-proportion
u; Y- E; m6 ^5 N) Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" Z+ Z1 |. R% Z* Y2 g# p4 S' |[set global-proportion 0]
( G: n! U# A& ]. y[let i 0
6 j- K- P0 F# E& @0 c8 p, u3 zlet sum-money 0
. A9 z7 s/ I8 f" v5 pwhile[ i < people]8 }- Z* N4 {0 X
[+ H* N; a/ L% ^$ f2 Z- o8 H
if( length (item i/ [8 U: `9 c: g
[trade-record-all] of customer) > 3 )
2 ?6 j6 C: \( g% Y; N[% r* t" o& S! ~$ ~5 n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 F+ c2 d; a! [5 ]: U( j# C* J]. u4 I9 e M' D! N0 v z$ |. K
]4 a8 U7 ^6 y" m I" z
let j 0
b: v' l g* I# _7 y# J7 O* Flet note 03 x+ Z& `' O& K) h, ]
while[ j < people]& R- |$ g+ A; O
[
* R a; f: R: v- k/ oif( length (item i
4 m3 R F; j$ q& ~[trade-record-all] of customer) > 3 )
6 ~7 i+ |3 v1 `. O! Y8 d+ g[! s$ @2 X- ]; P0 d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# F: j' K* L7 _4 C! ]9 U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( |0 i/ c! {7 |8 A/ Y" `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 V# U9 ^" p& O
]( e. R' ~7 N3 ^0 W0 T$ X. p* ^4 N
]% T! |* l9 ~4 W5 L: [
set global-proportion note
" a, {; w# Z J# Y" \; k7 D]
; m7 J& }0 H8 e" _0 I& R: Jend
5 {1 o. t Y% ?* B; m' M
8 L# i1 A4 o/ B8 U1 ]1 `, t& pto do-trade% W6 x) ^6 m7 f" P
;;这个过程实际上是给双方作出评价的过程
, R( Q2 s( }/ q0 G; F% v( w# ? o/ Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& m ]/ e! V0 x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ y5 S! M: Y# p% \set trade-record-current lput(timer) trade-record-current
; B# d. s7 I- R* J" E" A;;评价时间, m- B1 q4 s. P" Q
ask myself [4 d4 o: [6 Q# [1 e
update-local-reputation
6 q5 I+ R4 R* B# g h7 fset trade-record-current lput([local-reputation] of myself) trade-record-current
- o+ s) E) k; d]
8 n: B1 c/ L" c& x5 X( F* Q# f. \3 \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 W0 b' y2 y( P+ l1 U# H. b
;;将此次交易的记录加入到trade-record-one中
' p$ }3 U! R9 o+ v( E! rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; y4 i7 g8 [5 ~- _let note (item 2 trade-record-current )
4 b1 x3 j: ^3 G5 b5 iset trade-record-current% t* Y6 T8 M# J ?/ d) [
(replace-item 2 trade-record-current (item 3 trade-record-current))7 t H& I& B+ d4 W$ E2 l
set trade-record-current2 T2 H5 R# L) x' S
(replace-item 3 trade-record-current note)2 J8 ]8 x0 P* G. r, ?- c# U3 |
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+ m4 s6 V# ^: t8 I6 K7 M. zask customer [5 ^8 h9 X& T! ?& C7 k' \% p
update-local-reputation( M, B0 l5 ^" C- x' j# ~( r
set trade-record-current0 H% }' o+ _+ ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / M3 A& b5 Z4 C$ ^
]- L* n: b1 x( V0 ~+ K1 Z5 }- G+ a
" u2 V D2 H$ o$ R" k) C ~7 A
* {" ^' [5 p' j0 t# |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 M4 F( k& F8 N8 q! P& ]' D% N- V$ j" a3 d% G, z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" R- P4 b1 c; C6 G3 l
;;将此次交易的记录加入到customer的trade-record-all中
3 p8 u7 [) r; b/ |: Tend
8 I3 d2 \/ e3 m; x
) g. |, k! z/ jto update-local-reputation8 F. y6 p* C' n! \* q+ t1 b
set [trade-record-one-len] of myself length [trade-record-one] of myself
- Z# _4 R/ a! m2 n6 h; m Y8 }/ `: Y% \, j$ H* m5 i7 f' m% H
7 W% g! d" ?3 k0 Z;;if [trade-record-one-len] of myself > 3 ! N$ T( _: z) A, d1 o" u4 j
update-neighbor-total
: w5 i4 j7 }+ Y& e$ j5 Q7 F( A3 Z. p1 };;更新邻居节点的数目,在此进行# `: q& f& N( d" y% `8 g5 t
let i 3. W; V p7 Z% t7 D3 N3 J
let sum-time 00 j* P" v- @( T5 X1 k
while[i < [trade-record-one-len] of myself]
9 m: s. i# S) [: e[0 s/ M& T m3 `* o4 y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ P( s {4 U* Y# d7 Z( Q3 l
set i
! \2 r% ~0 @) A* ?4 x) d( i + 1)% W. N( q' h# B+ R
]
5 J5 F/ e; I# \, |let j 3
) {& }* C. v- K! elet sum-money 0
) |& [. n9 C9 q$ y' n8 Vwhile[j < [trade-record-one-len] of myself]
3 H# ^: l+ U8 g5 j[% l) i( T1 d! r: m) 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)1 Z/ s8 U: [; C- @0 a$ A
set j
$ F9 Q: t. A7 l2 Y( j + 1)' e) `7 M4 k* W; _: v
]
d7 L. v# |/ v; n+ Alet k 3
+ M) z$ p: m8 olet power 0
2 K/ @1 H/ e$ \. ?2 [# O! Llet local 0, h) ~4 ^6 w4 c- o& a4 I0 G
while [k <[trade-record-one-len] of myself]1 n4 M( U" v9 A# H0 W
[
, w5 h* k+ w$ A0 {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) ! r9 b4 G: _, ^, i+ T8 E5 D8 U
set k (k + 1)
1 b) v# z; q9 h" k& Q+ b]$ `# C8 p3 G, k( ~0 Q1 K% w! a
set [local-reputation] of myself (local)
; @) k E8 \) B2 O0 k7 bend
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to update-neighbor-total
6 i8 n1 q# C8 |/ F2 r* I. Q
# n; @% @5 W3 w+ j, l) f* hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) h' l3 ]' \# c& q& I
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end
0 ?" N8 L6 \1 E- V1 _: S; n2 L ]
to update-credibility-ijl : {) D; i# Z; _) Q! ^# t
$ E9 S, ~1 a* ]9 d/ t
;;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 Y6 k# v4 z6 i4 jlet l 0
& C! |7 {' \4 R- W& gwhile[ l < people ] v& B6 a2 k* n j% C3 ?
;;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8 ^2 J8 B1 A* F2 H& K
[; [% n* c3 x( N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): i% a I2 w/ Y u, ]* G" ]% Y
if (trade-record-one-j-l-len > 3)0 t0 O0 r! n K* t; D
[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 p7 R9 c4 O6 U L4 F/ |
let i 3
* ^) U0 b( J5 ~, D6 Nlet sum-time 0$ l: t% @7 G4 {6 ~1 D' f a) [5 y
while[i < trade-record-one-len]# }: ^- Q" X& s! n- J
[$ g! E. G l; g/ k
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% q2 B; A$ h% R2 wset i7 u0 K+ _$ }% a
( i + 1)$ Z2 N$ f! I: C ~7 r! W4 A& {
]
& j4 }2 u E" ilet credibility-i-j-l 0
0 Z$ ~* s& I- x6 S* r;;i评价(j对jl的评价)* w b$ L+ l) m
let j 32 ?9 _5 {4 }- \! a. S
let k 46 a: i2 X6 E, X1 U- \! B
while[j < trade-record-one-len]! e9 t& @8 l) t/ h% ?+ N) l
[
8 K4 V; r% `4 h% k* ywhile [((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
! Q& y, w! z' @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)
3 O5 [1 `0 J: z" C* r. W: ?* Yset j
2 r" s0 Q$ z# k% l/ W+ ?: k* C( j + 1)
; S f X' x0 S% l( U" y]* \" I3 s2 Q* X) T; F
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 ))
6 I3 J6 Y2 r2 }& @6 ~2 c3 L+ Z" z' K8 z
0 D4 c' A5 v! }4 _$ h9 p0 W
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ P' s H* l! W) U5 l;;及时更新i对l的评价质量的评价/ X! u7 _2 |% q9 J8 d+ o0 f% c! o
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* [; t; y B Y& [# x
set l (l + 1)/ }) X! Q+ a! w
]
" I0 y5 ^+ _# G& [4 e2 X6 G5 K5 p' Bend$ @: _5 ]9 M8 s& W7 J' O+ E4 G
. m) O5 ^4 M/ V) b, o: |
to update-credibility-list" L1 S) M5 A4 [
let i 0
z0 M6 D& D4 i$ y9 zwhile[i < people]& k+ f+ V j+ o6 w! R$ n
[' A |0 c: K5 }6 Q6 o( X% z' g
let j 0! z: |: D, n8 T' X8 s2 c7 i' m
let note 0- B) s3 u N9 r" r- w( r5 V
let k 0
+ z, v4 x0 d: J3 b0 _7 n# l; P;;计作出过评价的邻居节点的数目4 }' t0 ?1 J7 t2 r! c" v
while[j < people]1 u0 P' j7 M+ [" n4 U; u
[+ J' R/ Z$ v, g# @! F: `* D/ \; F/ U
if (item j( [credibility] of turtle (i + 1)) != -1)2 M- G( g( D( R5 u! @# U& y
;;判断是否给本turtle的评价质量做出过评价的节点- ^& |5 B, ]1 N) p! C
[set note (note + item j ([credibility]of turtle (i + 1)))$ j. z! g7 i, G# J7 f6 E* B
;;*(exp (-(people - 2)))/(people - 2))]
4 O/ \# H" R; N$ X1 s4 [set k (k + 1)
% ]$ x7 x* @: Z4 S. X2 _]) h+ b/ f% Y! ?( U! ~
set j (j + 1)+ |; G: f- S/ [0 S% E
]( K d2 ~( B4 t6 x; U& g7 S2 c
set note (note *(exp (- (1 / k)))/ k)' M( f" U6 k- }9 H) |
set credibility-list (replace-item i credibility-list note)
( e+ t7 z/ L: t- }% v) Mset i (i + 1)
! h! X: J8 S7 s% V]
/ l7 J, D6 T& u) T5 Jend
* s/ y, o- C7 s+ a7 _0 l; ?( z7 z& f3 A
to update-global-reputation-list
' J0 N+ V; ^, Y1 {% u/ |* mlet j 0
: a4 |" G) c0 H0 ?5 \1 k/ cwhile[j < people]
9 }% s$ X) b2 D[" O) D6 ^& }4 ^6 o2 M3 o2 z( y! s
let new 00 W# y7 f" |; D4 Q# ~7 Z9 o
;;暂存新的一个全局声誉
9 g2 ?4 F% | M" O& Ulet i 05 K4 B" T- K- y" J$ Z2 i
let sum-money 07 H% t Z* d$ v; n0 i6 s( O
let credibility-money 0
/ v% K" a' M2 s% ywhile [i < people]; ~2 u, L. m1 x* s A
[
x+ C7 k$ B3 M. \$ \5 }8 {set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 H+ m/ @9 T7 i. I1 z% o# Kset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
5 k1 _/ J" g d2 L& R0 pset i (i + 1) L1 ]6 G# y* { d9 z
]
. N/ v& k6 B6 X$ n8 h* A% I8 dlet k 0) b5 m K2 d) U0 G* X
let new1 0
9 z) e- c2 j( M7 Nwhile [k < people]: }( i* m R* T
[' r( X. a8 e" H
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)' d+ l1 S3 q. V& d
set k (k + 1)
# _: E5 s: P- C+ E]
/ [) T3 l/ D! m; m! T. xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & }* ]6 T" ?6 R/ _" X& x
set global-reputation-list (replace-item j global-reputation-list new)5 x" w/ o4 m2 L+ ?8 |6 o
set j (j + 1)
. C& S. [3 k7 ^8 [# _# B5 q]
* i" _' F% ]# C6 iend
6 E% W. L2 n0 t/ J J$ `# {9 y& M
6 }% n4 q! }5 Q! x# f: S( g' ]+ m. S+ F
0 {( D- N% t* Lto get-color" U. i( ~# \& ]/ [$ c) R* w9 E
) v' Q- |8 i9 N8 v" nset color blue; o. N- T0 x. B$ x2 D w, S5 W! q
end/ e/ }/ {4 P* N. E+ k7 F1 M* q3 m& |
]# E' t. M+ _$ H: ?" g* `# L* [
to poll-class
& c- I7 B. \$ Send p. f4 K% u6 H- b v
2 u3 n- H/ R1 b7 B( T* R( P: L4 d8 \# Hto setup-plot1
& K5 }7 R( P' y6 p+ P+ N8 m; y' h2 g3 E0 `. x% s5 C4 }# d
set-current-plot "Trends-of-Local-reputation"
6 a$ P+ S9 {) z$ X0 }7 R
5 p; S: f- e) K0 D: n8 w1 zset-plot-x-range 0 xmax% y9 a+ {. [+ ?' m! N! [% r
" g9 R/ O% k3 z: w, V; y
set-plot-y-range 0.0 ymax
6 T/ q" |( s: m: ~& d2 Z6 z+ w j, uend
7 _) R3 a% l+ K: e1 p& k8 \
* X, l" l' x9 P6 Uto setup-plot2( W: {: l( c* c, Z3 N
0 z" K* y& _; u% C" a6 W
set-current-plot "Trends-of-global-reputation"
/ f6 l' U P+ o; k) [& {
9 w8 B, r7 o! H; B: i% kset-plot-x-range 0 xmax
) k+ e# X/ B f9 y, ?( V4 F+ X( J
set-plot-y-range 0.0 ymax
& W6 ^. F( S- a7 }6 e' @9 Hend
5 `( a! a1 o: {6 q; R
' C" C5 H) ` { t Z7 tto setup-plot3
1 v. {8 R2 P0 Y% T' a5 E
: F/ @ H; ], g! r' P: Sset-current-plot "Trends-of-credibility"
7 X) A6 T, |1 L2 z# w8 ?& O
; U8 }& A& ^: W2 X P3 Rset-plot-x-range 0 xmax. W% D% y/ d7 f7 u! V, `# @
& b1 u& w! s; G/ R! c
set-plot-y-range 0.0 ymax
. a m+ U9 `" iend
# r" ]% O0 w9 o' f6 Y9 ] j3 A8 ^- W) h" `2 U" @
to do-plots3 M: y( Q( V. ^! N7 ?' I. k, _
set-current-plot "Trends-of-Local-reputation"+ D' N; O' C9 T8 Q4 `. c5 O
set-current-plot-pen "Honest service"( Q9 L, J" w8 @1 D0 |! n* q
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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