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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 H/ s/ J1 v5 Z+ a& ]globals[
* Q% q7 I5 ^: Z! txmax7 W) Q" Y0 T, P" c) B/ F: i. _
ymax
8 w8 I O& v# I& b- I) w% Cglobal-reputation-list5 J) P$ S" B, P) A
; |" e* Y0 h( N3 f' k+ n0 W# J
;;每一个turtle的全局声誉都存在此LIST中
& u8 `# S3 h" K2 ncredibility-list: D: @- h9 t" R. Y7 L, E( u
;;每一个turtle的评价可信度, w! {1 v( f. r# l4 O+ A% \ n* P
honest-service
) N/ Y- N" t. }% B. S4 }3 iunhonest-service
# L) _' [9 f7 O% A8 @+ R+ d$ voscillation$ g& j* A7 u1 ~! ~* q( E2 ~, k# d
rand-dynamic: F" Y3 X1 R8 R! N0 p$ p1 y# \
]
: O1 x# u+ N, Z" \. V4 _. [) u+ t
' T* }" k: f7 A o) `6 b. o/ eturtles-own[+ i, g) @, g8 ^* I) k+ V
trade-record-all% x$ p4 _/ `/ s3 W% T( r. W) N5 S
;;a list of lists,由trade-record-one组成# v$ @( c$ [$ [2 m1 U4 Q
trade-record-one
, s# `! h6 M0 j+ q2 }% L- H* S;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录$ N& F# P6 ~9 A5 G" S
9 f9 S% l. Z) q2 G2 f$ A;;[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]]
' {# E. D; V0 t2 {' V1 j( s2 mtrade-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]1 m/ W4 P4 W, B" l7 S: g- s
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list1 }0 O0 Z# J, R3 t7 K0 D
neighbor-total/ g1 m! Q0 h+ N/ f, V
;;记录该turtle的邻居节点的数目
% `5 `+ r7 o5 ]9 F$ qtrade-time
9 p: p. [/ W; l O' ?) s;;当前发生交易的turtle的交易时间 @/ d8 N! ?% N7 {3 Z
appraise-give; W! n X g: w7 y5 z1 W
;;当前发生交易时给出的评价: C5 J# M0 a' O
appraise-receive# |; m$ }1 ]6 a% E% e
;;当前发生交易时收到的评价; a: P1 x- E& f+ Y% ^$ d( A; k3 H
appraise-time
7 w. D, l) u7 G1 e- _;;当前发生交易时的评价时间
' Z, X2 C$ d* S( a- \5 Slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) [7 j/ L( l7 B9 y3 E/ ]! {trade-times-total
& R: o7 X" ~( {2 y* r1 k9 M;;与当前turtle的交易总次数
' X/ Q& s7 R) _( e- [% Z" Utrade-money-total/ H$ Y4 E: L5 I: T8 g5 k
;;与当前turtle的交易总金额
' D0 u0 h7 n' e7 t! C7 Jlocal-reputation
1 b% S! c" A, l: ]9 ?0 c4 C" Oglobal-reputation( ~6 G: _+ i6 @ Q
credibility
' ?' u: Q5 v; m9 J% k6 o4 K. F+ G7 ?+ ~;;评价可信度,每次交易后都需要更新
* G! N7 [$ m0 @; |9 Scredibility-all
* `4 H: t4 A& x8 L+ J: z;;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
' V# N0 b+ F/ ]3 `7 w( }/ o* P/ s) o; K, A
;;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
1 A( ?& r" m. M8 B6 l( |credibility-one
4 v$ Z( s5 m8 o;;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) A; n( \6 F( @9 m9 p1 @
global-proportion5 l$ U9 _; u8 R2 Q0 h( U
customer
" E: h' A/ o" z, n+ c S& N: z$ Acustomer-no
4 |+ Y K ~ J, B6 {0 Y9 \trust-ok
6 p* d' e: C+ Y h/ Utrade-record-one-len;;trade-record-one的长度
2 P3 o2 Z8 ?, a# Q) m]9 Z9 ]9 j( c4 T/ V' a
; a6 T- f* i8 E8 I;;setup procedure
9 o8 @; O2 X9 Z& o2 x; y
& Z, O' b" O4 v" }' _* ?, s/ }1 nto setup
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3 z5 s, J( H6 }: d3 c; aca
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1 p, J4 _8 P% p, p K, `initialize-settings
+ U6 h- T' l9 e5 U; k* g1 f1 [; T; {
crt people [setup-turtles]
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reset-timer# b; N Q( a: `! }! i3 f' F& I
4 M7 }' a1 d& P B% wpoll-class
7 H# G+ P# b! T7 D; E7 Y- r$ k" R& X1 q% d$ A
setup-plots
& K$ | O) K8 T* l# o! c$ W, ~8 J! |/ w% H
do-plots" J! o! @6 }. Q& Q7 Q& M$ C' U
end' m6 g* H5 i" V9 t
1 S$ B2 e2 h0 ]
to initialize-settings. S& Q6 ~. ?3 L1 j7 f! V
+ t x- j8 ^: S5 y7 T
set global-reputation-list []
; ~8 }2 i+ d8 b# T4 h* J, v# F! H+ J3 E g
set credibility-list n-values people [0.5]
U. [2 S! H. a; e, z- n& z5 A6 c2 g. C: l" n7 O" q$ q
set honest-service 0
4 n4 Z% K/ O& ]
, A. g. ~7 Z' _, dset unhonest-service 0& r9 Z/ n2 \* k4 w4 c+ q- B
6 a. U0 |6 Z/ d& n6 X3 O% Q
set oscillation 0
, |. L, b1 z% |! i& z# {/ h
! J+ i/ `, z$ p* d3 G9 w$ q- J C, Uset rand-dynamic 0
8 p1 O6 i. X& X( v0 l7 mend
0 M! i: w+ `7 K! d" u9 T) a: Q6 v
7 f5 L2 o+ v9 x, e- `# q- z; hto setup-turtles 5 X2 \9 B0 {4 S' T. ?
set shape "person"
+ |* _7 w. J( e4 n: r3 x. G' Qsetxy random-xcor random-ycor
4 q5 s/ }/ n! N& A/ r( J$ Dset trade-record-one []
I% w- D, y2 |$ q( E
/ K% x9 M+ A7 Gset trade-record-all n-values people [(list (? + 1) 0 0)]
) p" w9 h6 _* m! N4 h
2 H( J7 X7 G! |) C' n$ w7 {set trade-record-current []
+ V: Z" h: T. U$ r7 @' [; Zset credibility-receive []2 k; x- R" }# {' ?
set local-reputation 0.5
0 D, s5 [7 X6 eset neighbor-total 0
2 n/ G S6 d% U/ xset trade-times-total 0# Z$ \- k2 L- S5 i( s- e
set trade-money-total 0& } s7 d% h6 e; z" p9 V
set customer nobody* G( X/ _& D2 N
set credibility-all n-values people [creat-credibility]+ C& o- Q& ?7 a% l
set credibility n-values people [-1]
& ^3 `6 j3 L" }9 c/ U9 l2 Fget-color
1 l8 E, `) k& k) C2 r! B3 F( Q) A8 s% i8 ~. Q! _
end7 S7 \8 { ?1 ?) R: I/ M6 u
* V1 ]( l9 X/ A' f, cto-report creat-credibility5 ^! ~, E. T& Y, ^ [
report n-values people [0.5]5 D- F' P1 w& U
end
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@) D: t4 N) d8 j" i. M$ y- w- Nto setup-plots$ U2 p" Y- H7 J6 r$ J0 ?, C# v& ^
' ~! W! s- u" J+ R$ i) Rset xmax 30
: O5 k) X; P$ g2 }. j- |- V3 r% A6 D1 l; d* a( j5 g d- I- H
set ymax 1.0# i3 B3 d& Z- H+ w w/ C
! |3 E# O' e' C% N4 m5 u3 M6 gclear-all-plots1 B) s s5 W0 R" w' R# y
- |0 o7 a9 x# @3 w5 [5 tsetup-plot1
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setup-plot2" b" }, g9 l2 N. q2 c
* u% P3 p# c7 t+ v+ M( q
setup-plot35 J8 c6 w; S* _. E: R
end
5 S1 S$ o/ m2 B7 D$ k( Q; m, ~ D( ]$ Z: o
;;run time procedures
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to go% o: c1 h/ p1 F6 N* x; q
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ask turtles [do-business]
, S5 z# ~7 q: q/ i+ O; E5 Xend
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to do-business . I3 O Z6 y/ r* T% i2 r" i
9 S+ _% P& E! I3 Q& K4 i1 t* e+ w; X1 T, C: r. x8 u
rt random 3609 }# T6 B' p% Z e' v
# n, Y1 b8 ]6 \2 L
fd 1( i E" G- }0 x @3 w
! ?- n& C/ h: Z0 l, x* a) m# z! ?: zifelse(other turtles-here != nobody)[
O8 n- ?5 N2 X5 c& q+ t. M) \9 M3 t, K. [8 ^7 X
set customer one-of other turtles-here
% k$ r& T0 }+ Z2 O7 ^. b
8 N( w; c! }, q4 y" X. s;; set [customer] of customer myself! b) C4 T3 U* m8 m8 d
" v0 E; i8 t& q5 uset [trade-record-one] of self item (([who] of customer) - 1)
6 v4 E0 `/ I& ?, T[trade-record-all]of self
2 g) }4 t. i. S;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 Z% S' A9 O$ e0 ?1 `. _6 }& I, {) s H1 D8 [0 z' Q3 h
set [trade-record-one] of customer item (([who] of self) - 1) |0 K1 k! P" }3 S* t6 w
[trade-record-all]of customer, e T% g- g7 Q
% C' l; f7 b5 C6 j$ j& r/ c' Dset [trade-record-one-len] of self length [trade-record-one] of self
) ^8 M' r1 x# [- ]( r/ J1 u* u. ^# ~
set trade-record-current( list (timer) (random money-upper-limit))
. l4 n i# [+ |6 l; t* h$ P
5 t8 }& ~5 Q" y% v. `! ~ask self [do-trust]
9 o/ Q1 b; r% I" a+ I;;先求i对j的信任度! y0 G9 L2 R- F
7 ], I5 [; F- r4 l# k" n* C/ E
if ([trust-ok] of self)) M3 }7 K6 }7 j
;;根据i对j的信任度来决定是否与j进行交易[
- }. m2 s" O" o, Wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 L3 ` y2 x& T: S0 q+ H' F/ T
: c6 ?1 c4 J5 W8 q' M" c
[3 y- ]4 G0 c6 j1 V1 E; F$ F7 N% K+ _
+ _2 i( z: M0 Z A! l2 N5 r- wdo-trade
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update-credibility-ijl
% r$ \9 n v: ?3 `7 _* a- d
5 j; t; k. P9 Y! w/ f2 V8 @update-credibility-list
. M- d0 {+ H$ b# ^* W. y
" L+ v1 o5 ]4 ]7 l* Q2 v. l+ K& x7 q9 p' D8 S2 R
update-global-reputation-list! `! q8 d* g' p! ~% w% f
' K) L$ x- U0 F1 L' n# R
poll-class
3 y; K9 O2 m% `$ K7 v$ ^" O
" O$ I8 h0 k4 m- u7 y% A: Bget-color- \8 q5 y& K1 j: ?$ E
, [: D* v% a) n5 ]5 J& q
]]
! ^* j) r/ c# H2 T
" J0 t4 N$ j4 b;;如果所得的信任度满足条件,则进行交易
: }- y1 [8 l I, W
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' u) T' l: ~7 B/ r0 y
rt random 360( w2 B- ?* T0 _; ]
, ^% h4 U. W. i2 v; [# {- B4 qfd 1) R" y8 d& H' l+ Y, L- L2 d
" A+ x9 H1 ~- f8 N8 j( ~& }$ o
]
Z" f4 h+ w; S0 i% _/ J3 @# p3 A: Z5 @2 V2 |
end
9 h$ T$ Y" D$ B$ k
& h4 E: B. w6 o8 m' Ito do-trust
1 j3 v6 U7 e. |- y2 hset trust-ok False2 P0 |+ G, m ]0 j3 k
' O" L) S- }6 }5 n3 J
) @( K) R4 f0 W6 v1 h
let max-trade-times 0
+ U! t# |6 [" D' c2 `% v( G5 R" mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 f/ K" K4 g! y+ F: z+ Q6 \/ D
let max-trade-money 0
+ M; p+ p) u* x# k# Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ Y4 i$ W0 _! @. slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); s) a; Y( a S+ m" D
9 k) Z, Z: e' |
+ D+ N) c# L$ t0 x2 ^$ {( oget-global-proportion: H- v, f; O `/ h6 T0 t
let trust-value
% G" s9 W7 u5 c% A5 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)
0 J! H: n; Q, v! W" z; Y# i! g; lif(trust-value > trade-trust-value)) `2 E; G8 c G A3 m
[set trust-ok true]
5 \, A8 `8 C4 N5 hend
/ d1 i K' `1 Q) r2 \& v7 d9 g/ P8 ~! }5 s- `/ w& `
to get-global-proportion
9 v+ Q+ }2 ]/ g/ _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
e4 m6 q: R: a' q- E2 `, Y5 m, d[set global-proportion 0]
% O3 {2 k' K3 H7 k" e[let i 07 f+ n" B3 R, j5 S& Q0 b. p
let sum-money 0/ w* s0 V6 l7 k/ q- j
while[ i < people]
: @" Z: C' H i$ d# {/ L[% H" l+ H, L1 f
if( length (item i! U$ v1 H; u$ ]7 i
[trade-record-all] of customer) > 3 )/ Z- V8 h* h& Y% T+ w% R0 B
[( G# L& g( i, z2 S. E7 B+ s- `, p
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 G1 e$ n) Q& Z- z& B]
. E- v Q0 u4 g" K" []
3 a; g4 i) V/ [3 o a" k) Olet j 0
" N8 ]0 q. F7 Vlet note 0
: Q9 n- s/ b Ywhile[ j < people]' _. z( f( M$ \' e5 q5 \
[) T, `& ]# Q- \; I0 x0 N
if( length (item i( }0 U5 h: q# Y% L& i W
[trade-record-all] of customer) > 3 )3 S: c7 w- W" m3 m! S/ ?# z3 I
[* f _" t* t A$ \6 V
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" Q. {4 D# U% L+ v. c[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 q' }4 T$ T1 }
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) e- ~0 _1 n6 |3 w]
, ?) t* P& Y9 R1 [. e( W]
^& m7 `- _! T wset global-proportion note1 A# L, e0 n0 m# L
]
# W; l+ }7 E# B, L5 d$ mend
9 U: L; u7 y; r: s: K
/ l# F: H4 \9 y! }) g- Bto do-trade& R; M8 \3 w( O* R6 E3 @8 @
;;这个过程实际上是给双方作出评价的过程: v+ {/ M( Y% b# {) n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# a, g+ j+ c5 ]7 _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 M# q* c0 |5 a9 A/ ]" E0 Tset trade-record-current lput(timer) trade-record-current; q- J3 y7 _+ j6 ?- X5 D& b
;;评价时间
: Q( c4 J$ O+ ?ask myself [, L F& s* n; t2 g3 x1 J
update-local-reputation! Z7 \- J5 q. g7 P4 }5 d
set trade-record-current lput([local-reputation] of myself) trade-record-current
" A( V( C: P- N6 @2 r d, H6 s]
6 J" C2 w% [) w6 Qset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- K+ U! q8 W) T/ B1 m
;;将此次交易的记录加入到trade-record-one中 O( R* [3 J! n' X+ I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ t6 F- }" y4 P( E+ clet note (item 2 trade-record-current )) \9 l! ^: b6 S
set trade-record-current
" j% h; f" s$ x8 }/ M0 W(replace-item 2 trade-record-current (item 3 trade-record-current))
: D( N7 a0 |/ ? k5 Z+ G+ Aset trade-record-current* ~. o' i* z# k" _
(replace-item 3 trade-record-current note)) J( x1 l- D0 X
& C$ U9 z- U* M- N2 n+ F
+ ^: p! B8 z( P+ Z- @9 Mask customer [
: j% e: Y7 W# d! v5 a3 jupdate-local-reputation
1 |/ V; |6 l0 J* H) X( Q Qset trade-record-current
% }8 o" g- B8 B2 ?* \(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 @: A8 Q& Y# S: j! n
]/ D! Y* `* y x% y' y2 [
2 W! w5 W! ~7 x
% C$ k, Q( f# ^ `, cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- s1 H* {: p7 Y
3 a" h$ ]7 N/ \+ W ]$ V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 Z) s n+ d: m/ X. u+ ^; ]
;;将此次交易的记录加入到customer的trade-record-all中
; `$ Z$ G0 d/ o! X" E0 T7 fend x) {# o. e, e0 O) K+ k% }5 {# H) e9 O
, X$ j- v% g' ^/ d1 J' `/ lto update-local-reputation
0 t: |; S( b- g* _/ D* U gset [trade-record-one-len] of myself length [trade-record-one] of myself
* ?% N ]& z0 W. _# \$ u+ R8 I: \( Z! x' J6 _0 Y M T0 \
2 W9 c8 C; ^' S* P;;if [trade-record-one-len] of myself > 3 - v" O2 }- k9 n# n/ B7 w
update-neighbor-total
$ z5 h; k# V" V# x, H;;更新邻居节点的数目,在此进行6 r) z& G, k( a, d& K; L
let i 37 }1 Z+ h/ |1 G8 }
let sum-time 0
- U/ w0 H$ d/ A% I/ U$ gwhile[i < [trade-record-one-len] of myself]+ Y2 F% `% Y, _, O% e+ f+ Y/ G
[+ E& e0 e( q7 X; D. s6 n) u( t) v
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), j7 G$ v6 k) O" L$ C1 _* y
set i
) \5 S0 J. R( d) q' o9 A( i + 1)
/ }9 v I1 _2 ?5 B]7 Z5 ~3 D7 B& I5 M* i0 O; A# B
let j 3
& Z% }, g5 @! llet sum-money 0
. N3 u5 ?" ?! W _ Awhile[j < [trade-record-one-len] of myself]5 I( F0 f E* t- L% v
[
! C2 n- E4 E) N% _, I$ Yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ t l1 [# C" v4 |set j
* N. i6 E# a: |4 {) `( j + 1)8 Y8 Q. e+ p1 Y" ?7 J2 q
]: _: ?8 d6 }9 C, A6 P, \6 a
let k 3
N& K& |# G& @* `1 Slet power 0
1 |7 H) H2 F0 N5 O6 z1 Elet local 00 l( q0 C' ~5 U V3 s$ s
while [k <[trade-record-one-len] of myself]
1 i. F3 t# _7 O[
! B/ d& D( `" r" rset 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)
( \/ T* O/ D3 _/ `! ~set k (k + 1)5 k- N' }. }! m# s
]
! i" C; Y X( r( O, ] q! z, s1 {set [local-reputation] of myself (local)) q1 _6 @4 A0 s* y* @: t# h
end
& i3 Z' x0 M* i. Z! g; U! G) l$ ?% t, p- o* P! c# ^8 F+ k
to update-neighbor-total+ _' {0 u! { o
5 ]5 f2 e* _+ Q# b9 P
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ H2 v; n' H$ {4 J0 o8 S$ a$ Y; n
2 ~; Y) y3 D; l/ u+ S8 F* P0 L; z1 n+ u- i! m! Q# v
end
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4 z1 c8 w4 ^! T9 E! h4 Oto update-credibility-ijl : ?% P; I# _+ u0 Q( U/ l$ K
) g- d2 ]8 ]2 y2 e' @. d+ L% o. E
;;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。3 _: V% p( ~0 y% N: ]; s, c- _
let l 09 N$ A6 b$ a3 @( v
while[ l < people ], O, ]) m/ e3 B" }
;;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
4 R# b% J& f8 {" X3 ][
% n- }3 J; P' h! D# I7 [8 rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)% P) [- v7 A/ O$ J1 Q4 R5 D% i. D
if (trade-record-one-j-l-len > 3)
$ y' ~, H3 h! ~2 g' 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-one) g4 E; A; P% t# R: A% D0 E* S
let i 3, t5 ]2 G) ?1 A! C; p
let sum-time 09 K+ \8 v$ R, J4 `; E# a
while[i < trade-record-one-len]1 C3 t- ]* r' M9 Z
[& d- T2 O1 w5 g& u
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ u+ y% u& y! x& @1 [& M/ O6 Mset i
' K2 A6 l" ]/ D' v, A( i + 1)
2 j/ s! p6 S2 m8 L+ S" ~]
: ~* H, [* s/ _, g" @( P' D: ylet credibility-i-j-l 0
% ?$ w( _; c0 y5 D+ B8 ~) D, D$ O;;i评价(j对jl的评价)/ Q6 M/ ]3 _0 i- l4 }, R+ ~
let j 3' s, Y( v; |$ W8 W ]4 {
let k 4
2 W9 N9 D3 J7 B6 B* N/ |2 U; owhile[j < trade-record-one-len]( L( J2 Q& ~ { F* ^! Q
[
+ V9 U4 g6 N) y- I- c' Q; w ^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
6 X/ R9 F* R* g( K+ h/ m8 e7 W8 Vset 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)/ C% W0 G9 x- u( J- v6 [3 s) ?9 ]
set j
2 M& n& C- J- K" \/ y' [( j + 1)
8 V E( n: Z" ?2 d7 R$ G1 i# W- H]
$ u6 `% s! D! D& C5 n' lset [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 ))& X" s4 {0 e& @
0 \0 r' ~7 N6 ]: B- d7 M" [) D S9 P) q, _5 @
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% _4 I* v3 h6 \/ x) r' R3 D4 ]6 ]0 D
;;及时更新i对l的评价质量的评价$ x9 X n8 Q+ `! h( z' K% m5 o
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 S* x5 R: c( a" v& v; u
set l (l + 1)
. q/ {0 }1 u J]3 \+ ^1 v% X9 E- j
end1 Z, V4 v5 |! n8 A
: B8 U( u9 K# M* ?) D3 }8 T
to update-credibility-list
7 m& }. K% [) v, _, s, L) o9 Y4 `! \9 Olet i 0
! ]4 |& |5 O& o4 ~while[i < people]8 ], q8 V l1 }" q; S
[( V" |4 b8 m, n8 e! n- z
let j 0
1 H2 m# e. Q# e6 Blet note 0) o' R! v8 s4 R8 S
let k 05 t( |! E5 S! z# S! b
;;计作出过评价的邻居节点的数目, }3 e9 O' m3 [2 W8 d4 k+ H
while[j < people]
]3 ?; W7 m$ c# f[
, D; l u! D! Eif (item j( [credibility] of turtle (i + 1)) != -1)) m( G! _) D7 O9 A7 P) r+ i
;;判断是否给本turtle的评价质量做出过评价的节点 C% B( Z% J* m( K( a8 X
[set note (note + item j ([credibility]of turtle (i + 1)))
5 Z; q+ @3 A% O: s. {+ ~9 A;;*(exp (-(people - 2)))/(people - 2))]) K7 o, P9 I1 E v9 s; s2 h# N
set k (k + 1), g: x j% @3 k
]7 a+ l# y! l7 w2 u$ f% ?
set j (j + 1)
1 C) Z3 }3 | Q ]4 v e6 g& y: n]
+ P$ E* t6 D, gset note (note *(exp (- (1 / k)))/ k)
, W4 ^! G- g: ^, q+ F" qset credibility-list (replace-item i credibility-list note)) V n2 f6 l9 `$ U* D/ ?* Z
set i (i + 1)
! ~1 B+ i, i8 c! j]. B5 h9 x0 ]1 @8 y# @/ g; G2 U* C
end* k6 F% y0 L7 d: J8 {
2 ^, e$ u2 ` j# {* p* D7 \0 Oto update-global-reputation-list
& ^$ E B1 G3 E" tlet j 0
0 D! n) `( z5 M" twhile[j < people]
/ T! v: i z" S0 |+ m[
" d% @' n) C0 R9 @# U+ q% llet new 0
2 o4 U3 Y& A4 z2 S7 v0 z;;暂存新的一个全局声誉& l1 v5 ^* k8 q% k& P2 q
let i 0
) Y2 W; Z0 r$ T6 D0 F' L3 Ulet sum-money 0
; W/ q( x {" E4 B0 Dlet credibility-money 0
/ o% G7 w5 C2 @! P0 ]+ `while [i < people]
6 w& V7 F; c6 x* j- Y/ c' x[) q) q0 r6 s5 I% v. h; D. `
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 G3 {) L1 A" Bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
5 z/ C* j3 w% l1 {set i (i + 1)
' i3 K1 P) ?8 D2 X) \]( m" v* d3 A! p8 ?7 i; v
let k 0
0 l; b% e" n* H! rlet new1 04 z; G" l8 I |: _& h/ H' [
while [k < people]
+ M$ p {9 V8 f; v[/ \" @' v" N+ y% \- Q6 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)
# U& E/ k% W% m9 [# H5 F+ kset k (k + 1)/ V: s- `- Z+ S6 z2 L. d
]5 V; \; b& \1 g' U/ V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 R! v' \- R: R' cset global-reputation-list (replace-item j global-reputation-list new)
7 W- E% ]; i/ s: q6 U1 ^set j (j + 1)
/ S+ F( j1 f8 m7 H]* E) X$ P- T) U
end
1 {2 z' }9 U# J, h" ], p
# L3 @2 J: h! k% b" X. O3 @$ V/ B; K. \2 O& ?" |, }
; l5 ^+ w8 X* a& L0 x; Hto get-color
a i* d; E' W( p8 d, x: q( y3 j/ U' h
set color blue9 T& b- k1 k) p$ V) p) D2 X+ D
end1 }! ?! L' a7 ]% c' e- ^
+ N. c& @3 ^5 \# w0 v6 I! n
to poll-class& ?! [4 m8 ]" @0 _3 X. u
end3 n$ j7 ?, m9 I4 [; Y0 x
7 V. C' l, m1 W$ u9 i' ?
to setup-plot15 Z+ m4 u: {9 A* V) D/ P( p
7 j' H5 g4 e, X) C1 Y; z- A+ c
set-current-plot "Trends-of-Local-reputation"
3 ?! C, G# }) _* Q" ]5 o3 g: W, B. ~* \. b
set-plot-x-range 0 xmax1 s4 ?' U' F& v0 A4 j I! C
- Z9 D% F/ U# }+ ^set-plot-y-range 0.0 ymax
: s9 {- {, a* R* b; D4 S6 T: q5 e1 Nend
9 @/ y0 W- c# _- x+ `) B! B7 b
* r& Y/ y( E! C$ r0 N+ ?/ |to setup-plot21 q- v/ l1 r0 p: Y0 h
. |6 s, B" _, m; z- _1 [3 E' \% b
set-current-plot "Trends-of-global-reputation". r0 K4 X/ V" E9 ]
# u8 K! Z* m4 W
set-plot-x-range 0 xmax, k4 {4 K2 z# c. G& d# p" G( V/ g
8 J$ }3 s: F: c, b( S' _set-plot-y-range 0.0 ymax
% ^& z2 I/ b3 j) M% d1 K1 P& Jend
* x5 i% w( T$ Q5 ]; i& ?& G' ~
3 z+ ^2 c3 C5 |! q! U" sto setup-plot3
" }6 p6 z" U9 C( ]& Y
/ [5 S- }$ L0 P+ l6 S1 J7 vset-current-plot "Trends-of-credibility"
' V* L5 w5 y+ D- n* E' z
1 s' a0 N/ z0 o- l( `9 O& Dset-plot-x-range 0 xmax
5 L) Y3 L6 _6 X/ J5 u
4 }8 f, _' }4 G6 U! G d/ F vset-plot-y-range 0.0 ymax# x5 P- \! Y- m1 t$ m$ Z+ c) w
end+ r6 T. a4 }; R4 w# Q, `; I9 r
4 n6 p8 ^, G. v9 {# Tto do-plots
# G4 ^9 m" s( @% jset-current-plot "Trends-of-Local-reputation") x. J2 ]% k" J& z' e3 k
set-current-plot-pen "Honest service"! M2 `3 V+ m& C% U& A
end
( @5 P" C3 Y* H8 z6 T/ Z7 _
3 w i; I' s, ]' ^9 t1 J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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