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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1 W7 [9 }& `- M2 ~8 z6 H
globals[6 m6 k% u$ U1 Z# B
xmax* \+ R3 ?* Z+ w' G$ ?: _
ymax
2 m! w' X- `2 P1 k% xglobal-reputation-list
* u3 _# h+ y8 }5 K* ^# { `
/ V2 h p* j6 K4 z6 {3 M/ }7 u! Q;;每一个turtle的全局声誉都存在此LIST中
% M1 i& \; c4 s4 mcredibility-list2 J" V& |+ X7 e' {* Y% \; c
;;每一个turtle的评价可信度
& X5 o7 y3 p$ P4 K; rhonest-service; i& Y4 i( j8 z& s2 f
unhonest-service' {9 N T# S# l( M, s
oscillation
7 M& [5 ^' Z. u ^9 Krand-dynamic
% }/ ?) _" @8 N& c]
$ r4 h' a9 W C8 l. ~( e$ L1 P- E, Q% T* ~ p$ u
turtles-own[2 V# t( m, o6 j6 k& |* U T
trade-record-all" s& P' h) b' L
;;a list of lists,由trade-record-one组成
d. q* U1 H+ s* o3 W2 m$ K9 Wtrade-record-one1 X& e( j& [. `! t- e5 \
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 ?# C6 m0 X4 S4 T) E
* f0 |% q2 P% C' A0 N s# K9 |;;[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]]( ]. m) _! U8 W% ]- L) W
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]# }3 m3 O* L! S1 a6 g1 G; E2 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
- C$ P5 X; @; E9 k, } Oneighbor-total
% J3 K4 G* j) Z7 E6 R;;记录该turtle的邻居节点的数目
$ q; W. \( ^8 |( h) z. {* Otrade-time
( L8 b7 X3 A9 k( i2 j+ ?% v! K$ z/ T;;当前发生交易的turtle的交易时间
3 d' d0 h( |+ }7 v, _) P( h; L/ mappraise-give6 S* X) o, e" n1 D% |1 {( y# D7 K5 Z
;;当前发生交易时给出的评价+ h# E! u: j& C2 c K$ b
appraise-receive
2 b8 F0 L# l. q% F6 c- p i;;当前发生交易时收到的评价
: }+ p) [1 F2 l# W2 G3 ~$ }, Tappraise-time3 g! Z/ ]& n- ?. A' T$ ~$ f/ r
;;当前发生交易时的评价时间
- u6 K" T# B) u4 w# `local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 K! _( a! s8 C' d4 `$ o$ V' Z. u
trade-times-total
! ^$ T1 ]+ L/ ~1 V) B- S. ?;;与当前turtle的交易总次数! z8 ?4 X n5 k6 `6 J4 h
trade-money-total
# G, x! v- U# l; ^* t;;与当前turtle的交易总金额1 Z0 P9 B6 x. a& ]: t9 J, j) r
local-reputation
+ m4 j8 f( J! bglobal-reputation/ x# A$ f; u+ N, t2 O7 n& x
credibility
" P, A1 I8 R+ r: m;;评价可信度,每次交易后都需要更新
+ B( K) q& @4 p* `% p2 ecredibility-all
0 m L7 `' [& a$ H1 G8 {;;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
/ W- B% @" T3 j' ~# Z u+ ` \8 j, o5 h, p$ ^
;;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
( }& D' z8 ?0 w% y- q5 N2 Dcredibility-one
; m4 b4 X- |$ _( V! u) n;;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
1 d* u8 n% u% F! q) |7 Hglobal-proportion: T" [6 A' S" o% X! `# o( ~
customer
4 y; D Q: k6 K9 f) H+ gcustomer-no
; d7 n5 F7 g4 _" v7 k* ^1 t/ Ktrust-ok6 @6 D( J+ N% L& [ w/ R
trade-record-one-len;;trade-record-one的长度; K% } i9 \7 J, d& Z
]
" Y* y$ ~5 k' S/ {. m
' S p W4 S6 W;;setup procedure8 l0 E+ h( |& l) e, ^- K
5 x6 T. I/ n7 N" x
to setup2 k0 W' |2 m7 a
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ca+ t* z- l4 C( @4 D9 u7 |' A; t
" i& j* q8 J5 d/ `2 V" Y; @
initialize-settings' R: w- N8 u9 ?, a; v
6 W- Q2 \/ z/ \4 G+ K
crt people [setup-turtles]) ]/ O9 h3 T! U: M+ H' K E. q+ @) O
% I; v2 E) P/ S) ]reset-timer
7 R5 _1 i- @ f! c9 Q( G) I- I, y ^# J; h1 y# t4 o: U* {
poll-class
0 W( I ?' g: Y9 {6 a# z4 l' d$ q+ ?
setup-plots* x5 T- Q5 ^0 |' J/ E! o, O4 P, j
+ P" [: y0 o8 ado-plots& E1 S1 l6 N( X2 j3 I1 C8 b1 e! O& V
end
* d+ Y I" d' ?$ t- q3 _7 `) G5 T/ k
; Y7 x4 \: y6 E8 z& c) _to initialize-settings9 m, a' c4 `# i' _3 g
* L0 `2 n: ]' X8 J) @* B
set global-reputation-list []) R" H1 P. K/ ?+ {1 b* K
# z4 v0 ~6 {* @8 N% F. F$ Aset credibility-list n-values people [0.5]* o. C9 M* Y' y9 B
; Z: v& q4 |) }& ]
set honest-service 0
3 T3 |! b; x6 d# ^
7 v+ e% Y& I9 u7 N% o! Iset unhonest-service 0 m3 A7 ~- o, O3 T; B, @
6 X$ j6 D0 w6 X9 q S' w) y7 A
set oscillation 0
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9 P7 Q; O$ e) O. x- n- bset rand-dynamic 0
* g% }1 h5 g. |8 W. b1 ]end& O& x; Y7 I# M! B8 n- u5 w ^
. o9 E3 l+ S4 d: _9 w/ x8 \
to setup-turtles
& f6 T- K2 p0 o! R$ x0 g1 pset shape "person"% a! P/ F" M' F+ n/ a/ R+ m
setxy random-xcor random-ycor/ C- e" W% Y, F; w! b8 V% w( L
set trade-record-one []
4 Y$ f& ^5 t. |7 j7 i8 M; r! m6 ]- `: c! m9 [. I
set trade-record-all n-values people [(list (? + 1) 0 0)]
- ]! d+ s6 S& U% ~% r$ ]) u9 d+ J
/ I& ?) \+ x: v+ g+ Kset trade-record-current []
( q' Z+ |. q2 k* O* Vset credibility-receive []
8 Y& g' Y7 E% l2 y$ G% A" cset local-reputation 0.55 f3 O; R! p U2 m; v$ }6 R- `$ Y1 |
set neighbor-total 0
* v1 M( ~ P% H5 Y2 G. oset trade-times-total 0" D5 L" Z, n$ `' t* A- o
set trade-money-total 0
" H( H% ^5 \( |' f, gset customer nobody
' o4 u5 ^/ x, S/ Mset credibility-all n-values people [creat-credibility]
) H9 G4 W" D3 _8 }, oset credibility n-values people [-1]* ?) A7 J: J& z1 v7 w
get-color
9 p) }' i" @7 J; M7 R
5 \& B6 N9 V3 B5 Z$ r1 R2 d# aend3 b# B! Q* v. e! N+ a6 G. m6 q
* l' V# p+ f8 ^2 T J( t% r
to-report creat-credibility
3 N! y5 P2 o$ T% G+ i) mreport n-values people [0.5]6 I4 ?8 C4 |! s1 z
end
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7 p5 s' p( B! Yto setup-plots
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2 R R, d# @4 q$ l/ O+ Vset xmax 30
( [ b( V+ J/ K4 `( |
" r6 M& f$ Y* J% gset ymax 1.0
2 ?: @3 s, O& K8 ?/ T
& S5 C7 J7 Y3 I' o( x# u+ f8 _clear-all-plots( m9 O+ d+ X5 b' |) o$ z+ D' ?; k% g
8 q. q! s. q, W( M" w5 tsetup-plot1* j" W& e' |; J b; G+ C, m
7 m$ ^ v! w- B' s, Z) G
setup-plot21 z' w7 s& B( a% v! W6 Q8 u
5 g, f8 y: s- y, l) `setup-plot3
; e% S( i5 w4 Y( \2 Aend
( Y. T5 M7 I$ ]+ t# F/ e) H, D0 G; n6 e4 ~" P$ e A" ?
;;run time procedures8 Q6 ?$ E; X5 _ L2 w7 a2 S
1 T2 |) A3 f, v* L
to go
1 o E7 O3 s w+ p1 e
4 w2 @6 u0 O( T' ^2 h8 pask turtles [do-business]
! K7 b" ?7 y% N! ?end
: ^9 g' N8 S$ F3 Y8 B* }; N( |6 m" M) j& x4 ^1 G% X$ U, T9 B
to do-business : }3 W6 y4 X, g+ D- B- h& p
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' m- s% [3 G" @4 P( Qrt random 360; @" ]/ G1 x% w$ i' x
2 t$ r3 d6 k- Wfd 1
% c+ H; x" } V# s8 {& _( X
1 W' g& _; r7 b ~ifelse(other turtles-here != nobody)[# c/ t8 [ _$ V
3 B- G4 n8 M/ Y3 f7 S4 Jset customer one-of other turtles-here7 V. o/ R* N* v: \1 t6 y8 U) g
$ P- z( |8 h8 U4 }1 U
;; set [customer] of customer myself+ ]$ u P* F$ t) r: J! x/ s
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set [trade-record-one] of self item (([who] of customer) - 1); k* `* k K( L+ f! A& F
[trade-record-all]of self) y: `6 n# Z, I/ Y- E- J Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; p$ v1 Y+ Q/ X6 D7 d/ b1 R6 n( m; J. t$ N' o1 A
set [trade-record-one] of customer item (([who] of self) - 1), Z. j Y) | Z9 J
[trade-record-all]of customer
+ d. n% N9 D1 Z/ I# D& z* `' _
+ G* J# g2 k+ B( W. r; v& Bset [trade-record-one-len] of self length [trade-record-one] of self1 Y2 S+ _7 I* Q7 F1 [$ o9 K; s* {# c C
- D* g/ N# J) q# `8 f2 P
set trade-record-current( list (timer) (random money-upper-limit))
% q; P4 H5 O( D, f5 n/ a0 w, @. }
' s4 Z, j Z7 t" R- u3 iask self [do-trust]
( _" W, a8 d# n' T( _) E; U2 U;;先求i对j的信任度
0 ~/ ?4 f: F" }; \1 Z# z/ a3 b! O& ~. `0 N; g6 ?* B
if ([trust-ok] of self)
& e' V8 b" j4 d0 E Z3 k" Y;;根据i对j的信任度来决定是否与j进行交易[
2 \7 T" U+ \* b. L/ o$ task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
3 N8 n- [ @' L0 @1 ~, c
4 `6 y) Y( Q: ]- Z# f5 L- d' v[
r) O* v2 |! F" N' }4 V0 u: t( `1 [+ s9 a5 Q# j
do-trade- N& H2 p7 v( M7 I' u( y
8 c& E5 }. x' \9 V6 `* B
update-credibility-ijl
- L0 B# S) }5 y& |# a5 e$ L5 y1 F" B! }
update-credibility-list! C5 V( _7 ?# _3 Q
) D6 {. ]* N) x4 n" \5 H+ v
7 F8 ^7 n9 {9 C0 W( N: ?# z3 G
update-global-reputation-list/ S% z/ e( V" F
8 I$ q0 L/ e% bpoll-class
: G' O# m+ a4 f& M# [2 `, e) U' a4 S8 d+ p) G- A- e! F7 ^
get-color
7 }/ q1 ~% j; M0 {! Z3 I5 u- T3 B k5 b
]]" w2 _) a* |* t% X& h8 j
% z' K/ g' d" U0 _" R1 e;;如果所得的信任度满足条件,则进行交易& v: Y3 ]; `* k' F9 j }$ L
2 J4 Q# K& F1 `+ f5 s6 ]0 N
[8 }9 d4 ~1 [ O& G( W
8 {3 R6 B0 y/ w" krt random 360
8 ^- ]# ], x# v" @+ o7 r& K9 K( r5 k7 r8 o3 p
fd 1
) u+ O& ]3 }! p6 b4 g) a9 L1 ?2 S! r2 X$ i3 T
]; k5 L8 m% H9 p1 R1 C; w0 U) \
/ Y2 G& Y5 i6 w4 w& r Q$ f# f+ Pend f6 f+ j" ?( p- r* _) w8 c% B6 Z
+ ~+ X8 H5 W8 [1 Q
to do-trust $ d* U' e3 Z6 l# O. `
set trust-ok False+ o9 `" }3 I$ f0 I, E: I3 t3 L
) o( X5 u1 @5 r) I, p! q
$ V- L( F! h; Z. @8 L: }! ylet max-trade-times 0
9 Z0 Y- a9 @ y0 N7 s: fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" D! i2 K/ `0 a8 P
let max-trade-money 0+ @3 K7 ?/ ^" N2 N& z" a# M3 R- b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* O4 a8 ]( H% `+ }
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' k; r+ ~: G& ^5 t9 y5 Z- U
: s5 ^! ^1 J' m# G! c
8 [, z$ ]! @7 J. P4 @get-global-proportion( u" V& I% J' `# |
let trust-value
7 E' W k; ~" I$ ~1 s- D( \/ glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
$ W5 Q0 V6 @3 Q$ ?$ {& Nif(trust-value > trade-trust-value)
, |2 _# l& W6 M5 v# {( C3 d& b[set trust-ok true]. G8 E/ ]3 W4 z0 e: W. b" H
end
* m2 F! E8 \6 _. a. ?8 g! q* h* ]5 [# H: g; d' |* ]$ r6 q
to get-global-proportion0 z- s) l1 l# p }; b( f% n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: x' Y1 r8 w% h[set global-proportion 0]. s: @6 V, G; @, p
[let i 0
* ]! L: S) H- ilet sum-money 0& T' w* W+ ]5 |5 j0 [8 g0 ~) }
while[ i < people]
! d8 l& [6 y* D& {/ C[
& N9 S h5 v, ], Z4 {0 h6 p8 gif( length (item i/ C/ I: X2 B- j1 `6 }% {# a7 Z
[trade-record-all] of customer) > 3 )
* d) z. z y: d- `3 A[
4 ~( V7 B4 _. ?' Y; sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* S' ]6 E$ [ J2 y# e/ r' {1 C]
1 e4 _+ q5 q/ N5 E# h7 `]
& i' m" V( _4 r' W) Klet j 0
3 g! E. C+ l ]; k/ z$ ?let note 04 w! B- j# X& o9 G3 p0 O j/ s
while[ j < people]4 K. g! s& B8 Q2 g
[! m6 v2 C$ {; o. v& ^7 t
if( length (item i
2 w- b+ h7 J n# M$ F* u3 K, o8 C[trade-record-all] of customer) > 3 )& n. a# T$ |) g, R' d7 F" Z
[- L8 b( D9 o) M/ U3 L/ `
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 W$ ?( s0 C0 B$ d
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 c( _- X( b' x$ O& v5 A! L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 c. t6 _ l9 ?
]6 z2 c" J4 S- B+ r
]
& A3 `4 K' k" _& ]8 vset global-proportion note
- S! W! Z# m+ m4 u]
7 K3 Q" }. v7 a7 d: A6 P% |. ^end
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6 K$ c8 l7 \. Y# J0 T! g( S7 z9 Tto do-trade
8 @) K" X1 [/ D;;这个过程实际上是给双方作出评价的过程& j3 Q7 o& z( ~0 M3 n4 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- a, C% m. K; U. pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 q) T, {7 o$ G
set trade-record-current lput(timer) trade-record-current
% g: d* ^% C+ r; K; {;;评价时间! e. c1 {. v3 n% |$ `0 }
ask myself [
0 c q6 c& S5 R8 _update-local-reputation
8 y, w# e* p% Rset trade-record-current lput([local-reputation] of myself) trade-record-current# D% c0 t' W, r* v) U& b
]
8 y2 h5 {- \+ aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 @0 y! H, l8 ^7 {7 }+ ]' _;;将此次交易的记录加入到trade-record-one中- i. F; q: X [2 ~. X
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 x2 q; ~, u8 a" ]. T# V
let note (item 2 trade-record-current )
# u. q% l8 y1 V( u- X- z# mset trade-record-current, p) h* R- N- n% M1 x& @
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 g7 q. \3 _: M( }& v/ Xset trade-record-current
8 r& d+ ^% O; w5 i# k(replace-item 3 trade-record-current note)9 @9 s, u' K% p$ l
: r j& W" h$ @/ N' C
4 T0 ~8 y6 N& x# w: @- @ask customer [; i8 `' m, U1 N* j
update-local-reputation$ ~# |) _% |) @- d
set trade-record-current
6 |) V" A' {& m* i" a(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 D1 I# q- F8 Q& d' V. C: T }3 M1 o]& l+ r: i- N* l$ B; }
3 Q. ~' D7 A/ ~+ [# S; n
( Q, k( _/ I9 ]0 [set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 [$ O, Z) o" | U! T
1 G# i% M7 a: ^0 C: |* M c
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); s0 s a Y% d; ]* R
;;将此次交易的记录加入到customer的trade-record-all中- w5 `: b& V+ ~) v' v5 h
end' m: L' X0 F' }+ N
9 \. Z: T6 L: j! Yto update-local-reputation
' f0 K, i8 k" G' q! e5 F& a. qset [trade-record-one-len] of myself length [trade-record-one] of myself
; [% k1 ] z+ `- l2 O) s6 c! Q7 @
6 v& ~' ~" E1 f7 M. x) J( @: ~( B$ i3 l# p& T
;;if [trade-record-one-len] of myself > 3 ' o; M2 F' ]! v6 a$ y
update-neighbor-total+ V C8 Z6 d }$ }2 D
;;更新邻居节点的数目,在此进行) R" m4 g& E5 y6 M
let i 3) o! Q) o4 h1 V: [
let sum-time 0
\$ C' \% ]/ P$ c: b4 }while[i < [trade-record-one-len] of myself]
0 `# b; ]6 v9 q/ j+ F N[
8 w9 |: M( c* m& u3 r" rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 w$ P# [7 M) z [, n- I3 Rset i
9 m# G+ y, X2 \2 n2 ]0 d( i + 1)
3 v9 u( g x' u7 {]
& {1 P* q$ \3 K2 L- Llet j 3
/ w) L& e! j2 Ylet sum-money 0
1 i- C6 }4 Y3 ]& W4 @while[j < [trade-record-one-len] of myself]
2 }, f+ y/ l4 K3 w[
) a7 j# P9 \$ R5 Aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)8 u% }/ b9 M& y/ }2 e. o) ]
set j
- H- L( w; {3 K: ]: B' b( j + 1)
5 _) ~" C2 H; T2 V. N% v]
5 P c! m; `& X9 O$ w& a1 `% hlet k 3) {( u0 r9 ^' {, a! m8 |/ A
let power 0
6 r8 E2 t4 }# N4 g0 Flet local 09 M! g& U6 v6 h7 g; k, |
while [k <[trade-record-one-len] of myself]
2 t$ U# n5 u* W" n1 P7 U& m[ U8 Q" Q' n& Z- w" {6 ^
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)
, B7 b8 d \. I/ @& r5 m$ Pset k (k + 1)
6 N- }( k1 \4 l1 c8 M# E]
) k/ W% q' k) X3 Xset [local-reputation] of myself (local)1 n4 N) p! i4 ~+ o$ T7 O; j
end t, H) J$ n/ F2 q8 m) E0 e
' L( X2 \( O6 w* Q- l8 mto update-neighbor-total
) e+ v9 j3 o3 Y* ^# N2 p7 D0 H! ?8 g" C6 {' S2 a
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
% A; \! m& R# E( y' k! c9 l4 s) m) \4 j4 X* h
to update-credibility-ijl . \& F6 m) B E# F( J* u R5 J
+ l) E7 ` ~4 _1 h
;;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。6 j" b2 a) J {! i* F
let l 0& F o: ]0 j; H$ p; g* N
while[ l < people ]3 e5 c- Z! C. f5 w5 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
- s8 Q: j. ~1 R! s- r7 y[, H/ K) i- K0 M8 Q1 u) o T
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* [& `5 Y9 i8 {9 |. x+ C
if (trade-record-one-j-l-len > 3)# _" W" n/ i; y' ~ 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
, Y" u- |: c% \+ O( ~let i 3
: v$ x3 W% g$ I8 [let sum-time 0
8 L- Y2 Y8 {" o& f6 t7 j" |& Q4 ?while[i < trade-record-one-len]
6 C; h& r- m S6 I# I! d8 \[) V8 u& Q6 N, v3 \8 i1 e
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' N7 L* ^( E3 P5 j. E3 S! z' r# Cset i
1 T6 r1 Z0 Z" u8 [5 R" b( i + 1)% ^+ C( S" d7 m' V( O! o" z7 ^- l
]
; k! o3 M0 W: Y+ [8 {let credibility-i-j-l 0
+ A' W4 b# t$ C( Y% m;;i评价(j对jl的评价)) C6 Q+ t; }% ^3 l& h% P
let j 3
+ A V8 r. A$ q& o* glet k 40 {, m" o, i J* ^9 r% d
while[j < trade-record-one-len]
& e; K7 T( A! O% R[
+ P2 m# b1 F5 i% K/ o' 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+ ^, K9 s& A! G" X* {! P: f2 c
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 Q4 E9 W6 `7 _/ S% Y
set j2 N& s" i% s' E% c' [. D# x
( j + 1)/ Z M0 o5 C" I. C2 K2 E
]+ V8 R ^& z5 a
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 ))
$ O1 t. w( \: k' p! h0 T9 f3 B( @! \, N2 G& O. R& i
0 B# @8 k2 o# o/ I: }3 M+ s. J: t: M, G
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. h* `+ ? i( V0 e' v3 o" V5 a;;及时更新i对l的评价质量的评价* [8 V% ?, F9 o5 v
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 P/ l, A6 F8 u8 C* w/ e' X
set l (l + 1)$ y! e( [4 I" W4 ^% n9 w5 Y. p, l
]8 |3 O3 D0 l7 D& s& q
end
( I: k, U' m, L0 ?" |' _9 H8 ?; P( j/ J6 f, }5 i
to update-credibility-list {; L6 G' A/ z, v# {
let i 0
$ k6 E# u$ X6 qwhile[i < people]
$ G! H4 l7 F" B! L[
" N8 \0 w9 Q R" ~# | }let j 0
& n4 c0 t* K- ?/ U/ C0 rlet note 0( O2 T2 p* Y3 j; ^
let k 0
% g# g- x6 T, t4 }9 Q3 T9 k1 I;;计作出过评价的邻居节点的数目
$ |1 ?; B2 a. Y" hwhile[j < people]. |+ K1 n; G0 G, e/ U' T$ ^
[
+ e7 o$ _, \7 |4 Fif (item j( [credibility] of turtle (i + 1)) != -1)
3 h% n# _" f2 B7 @+ j;;判断是否给本turtle的评价质量做出过评价的节点' { u# K& M* k# w0 N5 o/ ]
[set note (note + item j ([credibility]of turtle (i + 1)))
- Z3 ]+ s, I9 @4 E4 e/ Y7 h;;*(exp (-(people - 2)))/(people - 2))]
; A" L" M. J" [9 @# N- pset k (k + 1). H F W/ a% z
]
$ O) O# H: b& w% l* D% \ Hset j (j + 1)& i, v8 F2 u& s/ q; W
]" F7 X6 m8 d5 W% C: i* x9 O9 O: i
set note (note *(exp (- (1 / k)))/ k)( U1 [( T1 v9 z0 M4 h
set credibility-list (replace-item i credibility-list note)9 L5 V) C" K [9 _ ^) z! G& z
set i (i + 1)
/ \$ y; E/ d0 ]]8 \( Q8 t/ w9 X6 {. K
end
3 p- ]* n, S% i" W7 H; j0 D
* W) g; {, E( A" pto update-global-reputation-list$ V" r3 }) J" ]4 m8 W1 @6 \- x
let j 0+ W9 V9 H" S9 j' `4 H* U
while[j < people]
9 s0 d/ i* ]# [5 j' k. O* x+ q[! d- V2 C5 P8 a& X7 Z _! _' J9 H
let new 0
- d! `1 C2 ~2 L' };;暂存新的一个全局声誉+ h W/ Z- U2 m+ ]7 E7 Z( J2 o9 S( [0 ^
let i 0
8 U! {, k1 q: R3 Tlet sum-money 0- S8 I% y. j X% D
let credibility-money 0( e7 B9 B- @( ?9 o6 @+ Z
while [i < people]1 x+ J* P2 q t* k, x% P
[, K; f1 @0 p+ z' p* A+ C2 m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. [& N P" X$ ^6 |& D# D- ~set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# s0 R7 V) u' S- [( vset i (i + 1)
" N' ?$ k4 I( |. o+ R j]: [: a5 O: [. ^" X9 O: |: K
let k 0
. [' [# v! ]+ R U* z4 nlet new1 04 f7 ?" F& a$ Y6 K; g% @, t
while [k < people]! m" }# x: o. \; G/ m5 S
[" @7 J( L$ K& U2 p
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)
: G7 @& @+ H6 |" tset k (k + 1)7 K4 ~( N2 @+ C" Y. Y7 P: A3 Z; h
]& ~( e4 i& x, f* \; ?* J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
k& `' W8 r6 [& p! P! Pset global-reputation-list (replace-item j global-reputation-list new)
6 j- b, V; I8 D$ b3 |7 u: Jset j (j + 1)2 ]! N7 u" a. ^& }; E& P5 ?
]
( K3 ~* F# Z' ?end& j1 K# b$ w1 A9 @
5 v1 p2 T" b# P5 C. W! D% X* A c% P ?- p" ?
& o( g: |: r2 Y! ^0 I. bto get-color
( X( x# [3 U/ | P2 b, y' O# R4 W
+ r9 o/ F0 R! n% V( T1 t, |8 N! uset color blue
& @6 ]7 C' X4 Iend
2 H& J0 e! ~: y- ~7 R' d
! Q) Y- Z6 w# x: l" Uto poll-class
, \4 w& u( ^5 }4 `* B8 K$ j$ }end9 E- T. D5 k+ h. n% [! k9 b& I
8 |& k5 E; n5 a1 \7 [9 Jto setup-plot1
% \1 P+ ~$ e G' d3 {' P( o/ g2 y8 J
set-current-plot "Trends-of-Local-reputation"3 h# J5 q* _* ~" U+ W0 K
" r. N6 M& ]8 y! M9 A4 i
set-plot-x-range 0 xmax3 j: u# M/ E, p# L2 M
5 \$ l v, s& N1 z9 k' h
set-plot-y-range 0.0 ymax
# W5 ~5 q4 }& ]0 Bend
) l }5 l, M- b& A
4 F( q! b; N) h7 j' @ Dto setup-plot2
# j6 E/ u" }/ a7 x5 p: I5 l( J3 I4 M! q( E' ^; {% T7 ^* [% Z; ^
set-current-plot "Trends-of-global-reputation"5 m0 G; X0 y) [, q7 q. m
) `* M$ i! {6 K* W, j( Iset-plot-x-range 0 xmax
! ~4 ^2 F! L+ W% A- D( _( g+ W8 B' a5 I1 S# {3 J/ g. v6 ~/ J
set-plot-y-range 0.0 ymax
4 y$ u# ^; X* x% i5 t4 P1 T% K0 Gend4 Y+ p4 X5 r* \8 _9 ?
; Y. ~. Y& D$ r8 K( [, k9 ~
to setup-plot31 Q7 u5 O% F* F/ g$ D
) R3 @2 z7 L! Q# `; {! p6 pset-current-plot "Trends-of-credibility"6 [4 n6 h6 b0 V% A- a- t$ H
# N' |. d2 H' a& F$ rset-plot-x-range 0 xmax# g+ z! d/ n9 ]) e8 W; \. G
6 \6 |) N3 c9 R* |; mset-plot-y-range 0.0 ymax
8 U# I: l! \+ }5 i# i& Wend+ c2 p6 c* F( l& c2 W
& a# U% S* M- q$ h7 E9 jto do-plots
; y1 Q; [) }* F* d6 Mset-current-plot "Trends-of-Local-reputation"
& ~/ Y1 T+ x7 Y9 M l3 S/ @$ }set-current-plot-pen "Honest service"+ ~! e9 [ j% T8 {' A) F" O
end7 n1 F1 U6 Z- D5 c W/ |6 y
/ J9 T5 P* x% y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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