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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6 g. @" q) z$ Y) D$ U4 `. o
globals[7 |. k, @/ \# U H7 t# O/ a
xmax( {0 f' c* Q* T1 Y- c
ymax( N- I7 B2 {* N; g+ ]
global-reputation-list
$ T6 K5 J3 g( \
/ Y% j9 n9 P, G+ Q1 p) [0 R2 u;;每一个turtle的全局声誉都存在此LIST中
9 r! L/ \& D* r' h* Lcredibility-list
- y) B; m1 w3 ^. {2 L6 a) E;;每一个turtle的评价可信度
. v$ f) U6 b2 r3 z1 h9 \: _honest-service! l. B, {, d* c# B: ~& e4 `
unhonest-service
2 g$ [) z' S7 i3 roscillation" s C; ^0 |! L& u, J/ `/ b$ M
rand-dynamic% Q$ z' H/ V' `; |8 ~0 x& I1 Z4 D0 M
]
8 Q. M/ _ w6 E3 B g3 G
0 @$ M+ z! r! u1 y' [turtles-own[: @ @, Z2 x6 B
trade-record-all
0 F; H3 p8 i+ ^+ A. _" c9 r;;a list of lists,由trade-record-one组成! g" P1 y$ B- _* e0 L4 N
trade-record-one
. Y: \- M, U2 y;;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 J9 n5 _# Z6 g9 d" X
4 ?( y$ ?0 l. o4 U B;;[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]]" B6 e) J9 ~' s) n( ^' M
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]
# ?+ s- C d1 {0 G( ocredibility-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
O% Y0 p( i/ J$ ]neighbor-total8 d$ |' _' K/ [5 w, L
;;记录该turtle的邻居节点的数目
6 \5 Z) U- T) ?. \2 f" z0 e) Dtrade-time
0 p. l6 M2 y/ }9 c. J;;当前发生交易的turtle的交易时间5 z" q# H* O! m0 t
appraise-give% C b' ~4 V. l2 |9 [* @+ j
;;当前发生交易时给出的评价
2 C+ b8 X+ e( Z# _+ ]- R& D1 o% K g! ]appraise-receive
; h, `5 [9 f5 R5 U. o% ~& ~4 f;;当前发生交易时收到的评价
3 { o5 f0 N5 H/ P& K! a+ r* ^appraise-time
- Q V. ?# [8 G% ?;;当前发生交易时的评价时间
5 H5 H W X! Flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
; _/ W+ E0 M; g" f* Dtrade-times-total
e) d, l' A6 n2 W, V6 C# P;;与当前turtle的交易总次数
: f( a Z3 y- W* Y/ j, v0 L" ttrade-money-total; o O/ p1 C& X3 l2 ^
;;与当前turtle的交易总金额
$ x9 O( [) Y+ @' I0 elocal-reputation0 L" g2 P' D* V
global-reputation0 Z& I- ~" K8 d; g" W4 {" H
credibility
2 o' J& r9 j1 r$ o! s;;评价可信度,每次交易后都需要更新* ^6 `/ l. b5 k* e8 L. e$ f
credibility-all
1 |: P1 j2 A9 d9 x, U2 G; V1 l) L;;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3 z) L9 f# `# L
' Z8 A& C" Q3 K2 J5 A5 u# E! a( w9 ^+ 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
% c: z3 A8 q1 U! \- xcredibility-one
& H% S/ t1 f. G& W( ?) ?;;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
- i$ Y3 R* |6 Y+ N- aglobal-proportion: L6 G7 P) j9 y$ J
customer( d. A: G t+ v c6 r3 e; J* @
customer-no
+ u% B# c6 w% _ etrust-ok- d6 {; m4 {* a! M
trade-record-one-len;;trade-record-one的长度: }1 Q& y# Q) T* j, P/ o
]
+ C9 t, S" @4 q6 g" g: [* F# d2 l& L6 w7 `6 J
;;setup procedure! c7 S- i# m9 t, {% e7 Y% n5 X
J! m; d+ Y* D$ Nto setup
- U7 J( h6 N: V* w" _ R/ n2 U, Y6 V0 Y1 D* x' L
ca
1 B' o9 r* E' `" I# q0 Y
- b4 s% x# a5 Binitialize-settings
* n( i) \* P: ~. B3 _% E- D6 V0 J9 p
crt people [setup-turtles]7 J# Q# v) c. V# _/ r
; P8 B8 k" ?+ j1 ^% k& }$ O
reset-timer
" P- `" ~4 ]" l7 c
9 c8 O& x. I4 B U" U0 ~8 a' p+ n' Qpoll-class
; N- T8 _0 T7 N" S
! o/ ]6 p3 B; T' T- C. Z7 Isetup-plots2 l9 I0 T6 w" j* z% p% G( j* U
1 U; l/ J& w! }. r0 }+ s5 V Tdo-plots
0 q/ l# X! P- m# [2 {end. a8 C9 W; W3 U
. P( r, C8 `' E8 U9 u
to initialize-settings
2 S% G0 H q1 \
! b# Q, k6 o2 S! W6 p8 Iset global-reputation-list []
8 H* J; J8 `) ]) d5 ]/ a9 i: L- ~* V- ^% y) }4 S; m1 B
set credibility-list n-values people [0.5]
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set honest-service 04 X4 r7 ?% X. S* V7 ]7 v; R. B9 _- h
; {* p' N3 z8 s7 \ U" Rset unhonest-service 0
0 Y- k4 A b1 z. O/ z1 _7 h
( x, F, u6 P+ M- }9 D9 t- Oset oscillation 07 p7 V2 V- K, O+ k$ E) g
4 \9 g. `* l" N( M
set rand-dynamic 0
: v( Y/ m& Z g) F; tend# d; q4 x) w# X3 B/ J9 |
" p- i/ U0 S. D2 nto setup-turtles 4 S( r; W. o# ~
set shape "person"4 {- L5 N' u, X& b/ @, m
setxy random-xcor random-ycor- t; T$ v n! q3 P
set trade-record-one []
! I5 w. d+ B7 a. _5 ]4 ~; _
/ e+ y+ X0 x: F* z- v, mset trade-record-all n-values people [(list (? + 1) 0 0)] - i. Y/ d. B# R7 R+ L1 O2 K% f
# q5 P0 F5 i! @2 X2 {
set trade-record-current []
3 }9 C+ f$ I: T! o' vset credibility-receive []& O5 s% B1 ]+ {
set local-reputation 0.5+ _* f" y) E& ^1 ^
set neighbor-total 00 z+ F: \" n* w5 i& H
set trade-times-total 0
- r Y$ m9 c) F* P8 Z/ V- z* rset trade-money-total 0
& a/ _. {' P! g, nset customer nobody! U( y0 z" N" N6 O9 S8 q
set credibility-all n-values people [creat-credibility]
- ^9 w; J6 H$ m' M Q3 \* cset credibility n-values people [-1]& d. B. i$ x7 i5 D" h2 Y& a, B
get-color$ d* g" J. T) J/ t+ s' {' }
6 E2 |& w: U( D6 {end' s& q, Z) v3 i2 i# p! t S; ~
$ i7 s8 X1 E. m/ U. L( V# g6 s
to-report creat-credibility
; a) a: C4 U/ j- T' \- S) }report n-values people [0.5]
$ A0 L( n) x- y( U2 A, t: H: K! wend
9 y) w5 x) ?. o0 L2 W" Q0 p9 s1 ?$ V3 S+ m' e3 G) G
to setup-plots0 k3 Q3 f/ ~. n/ ?3 h
9 _1 }1 k2 L. i9 O5 }" X
set xmax 30
9 Q3 `* J: |( K1 ~- c1 d
' Z7 C \2 N. P' z& Fset ymax 1.0. w8 ~ w5 ^3 l$ w; V# l5 m0 H5 G, W
# t% s2 @$ L9 }6 g; k! g! {clear-all-plots. m$ A$ _3 q- J4 J) P. u6 _
/ ^5 d. o6 w; j4 ~1 l% I- @
setup-plot1& Q- o) H! V1 d3 b7 b) D
0 |% V5 Q" Y D! P7 N1 S; dsetup-plot2
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setup-plot3
" l8 }; z) b4 P/ D% ^/ A Cend) p% l3 D0 l( Z5 @$ o
) D$ F; G2 Y6 U;;run time procedures8 t9 {/ P2 O$ M
8 k( m4 _7 W3 x a' W1 |to go
3 G% b1 Y6 Q- t/ U, `1 J6 y& Y* Q" C* K. o0 G: S
ask turtles [do-business]0 z% k. O! O& w% s
end5 f3 K/ k" P9 B9 O; R+ x
3 @' w( X" O* o, a8 V! D7 l' p) ?to do-business / @6 r2 h* x+ A2 e
' P. S5 ^9 V% c1 R7 g) ~/ ]5 l, G! ^
" h1 A. v: {; z" a: o0 K+ \rt random 360$ G, F: \5 Z! D/ z0 m }. J
* X5 i+ J- Z. j. w
fd 1. N# u( [3 Q% y F
/ L% T" V4 z5 Z& j, Vifelse(other turtles-here != nobody)[
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% J. L3 P% l' G& @: {3 rset customer one-of other turtles-here
/ u% q4 K$ j& y7 F7 m' W& c
. D) `/ S/ y0 |0 U;; set [customer] of customer myself: }5 E$ K( }: L% y. e$ s
8 n8 W+ C+ T' S: C7 |0 u- e
set [trade-record-one] of self item (([who] of customer) - 1)7 `- ]3 [/ ^9 b) d; V! M6 s
[trade-record-all]of self [" a% m D) Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 G. m0 [5 n: t3 B; n
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set [trade-record-one] of customer item (([who] of self) - 1)/ Y, R7 R- N& J4 W
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self$ r% J. Y2 B7 @" U6 q: m
+ }( ~$ L) m# y# J. U) o5 pset trade-record-current( list (timer) (random money-upper-limit))
2 Q% S* F p# c6 ?, x! C
- t! c' \1 J: r; t: x5 T3 vask self [do-trust]6 @. {" N7 s) J
;;先求i对j的信任度9 ]) B4 u M0 b
( H: a9 s0 |& d- [. tif ([trust-ok] of self)
e( p0 p/ { w9 X! f( Q;;根据i对j的信任度来决定是否与j进行交易[3 t7 v: O8 }; P) u: b a
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
7 Q% e8 L3 `+ y( V( {! ]. R) f
x8 e6 m6 J1 _( u, f[
- c5 Z- W0 R; c- f4 x/ g0 u0 |
5 x7 r& N# S7 S# s. Y _do-trade
1 l& H0 J- E" u- E( W+ S z$ q5 c6 r% s
update-credibility-ijl
5 j" b% b9 r8 L
; ], f) M& p$ i! ]0 `) }, tupdate-credibility-list
) |# s( z0 J q2 J* B- J" n1 g& y7 z" q6 [5 g$ ~
8 U& `, ?8 j( T8 s! r9 h
update-global-reputation-list- H) P. r x- C1 u% N; ]$ s% D( z# H* S& s
1 }4 Q$ u6 Y ^( b+ R$ [! Q
poll-class
5 x9 f/ d; V0 v% s
s; c5 ~$ _/ uget-color( h Q# k+ z5 n$ Y9 D6 R. {
8 ~5 i& ^' l3 F]]
% m( ?! q) c7 J* ~5 I5 P2 [" A5 ]% a
;;如果所得的信任度满足条件,则进行交易 l. g! `5 _0 _7 {) i/ c
2 U; J% S" o7 c3 ?* z[
. h& P2 E& l/ h/ ?1 N) d6 Z& v# F
rt random 360: o2 C C; T4 g
( ?+ x2 r% G( C. X# e$ N* \, Bfd 1: x1 E' A& e* U
" d# G5 [' g* W
]
) C+ f0 ]* a: w- x% G% I
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3 W0 b4 C; p8 _! @; pto do-trust ( ^: V) e9 }) t2 j5 I8 f) j
set trust-ok False
2 O$ h$ Z. M) U0 _4 p0 p% a; Q/ G0 ~9 @
5 C. s/ I& z/ m$ Elet max-trade-times 0
* t( X5 Y! r7 g4 V9 R8 rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 g: g/ j* U9 F! O) @8 k2 M4 y s2 Flet max-trade-money 0
2 I o5 r1 @0 J# Tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 v/ w0 \2 v, q# i( D# Tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))5 r% s1 L& \/ M- D$ D, ^
# n u1 X. w9 Q
a% ~. D2 e p* p. R: Iget-global-proportion ~8 H% \8 C0 I; ?
let trust-value
3 \8 J2 l, a5 m* hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)8 ]' W, D! M; c# X" `- a
if(trust-value > trade-trust-value)
4 @7 ^! G ~9 B: `6 G[set trust-ok true]
% g4 _# \2 M( b }. c6 Oend% j' `/ a1 C# f' g v9 t% l( R
, c- X. Z, e3 z* @1 e9 p
to get-global-proportion7 M% p/ X& n5 r3 Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). Q5 E- l$ \) q: x; @
[set global-proportion 0]! q; x$ j1 E* R! @8 D
[let i 0
0 K, W R$ r {let sum-money 03 | z" B; I4 Q! M* I' D: g( v
while[ i < people]
" ~! e; O6 Z4 N; P6 F) G& n2 v[8 `" Q9 @, ?' ^. a! d( g6 n
if( length (item i
1 @; v7 t) j9 Z" I; v[trade-record-all] of customer) > 3 ) U8 x* W1 e3 {/ O6 R5 D
[7 _1 Z/ h P4 ~7 F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) @- ~. i, z* {* ~$ q7 B4 |0 x& ~' h
]
- ?6 p" D: g2 Y) k1 K1 b z. U]
& I; m! L/ X: [) {let j 0
% q: _* R0 c4 Q* F1 k- Y c7 Tlet note 0& V, M6 t! ~. L3 [( f
while[ j < people]
5 Y" Q# j- @! _( L( x( G) |[
@- B6 V/ b1 t+ s. \* Yif( length (item i8 r7 U2 A9 L) D+ c8 C# {& [% [0 v6 l
[trade-record-all] of customer) > 3 )4 Q1 p0 {0 s+ l. ~
[ b6 _' o7 {2 f2 O8 P0 K2 u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 p/ [3 ]: l; K y3 j[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 H" U- n* p, z; o" @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, x- t( G5 i9 Z* r" D N]
$ T$ j) A# K4 j! }: y& x: ]]) T4 u" G+ N% M( b, u
set global-proportion note, c! j9 D4 r& F6 I
]: b, ]2 p4 e0 e
end
4 h. D( L& N- s( L0 f2 w' z3 o0 @/ b$ |4 H Y1 N
to do-trade' {0 E3 D! ]1 Z& y
;;这个过程实际上是给双方作出评价的过程4 e3 d9 S: N l+ g- e
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. ]" M- r: U1 c7 o( w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ J2 P( m+ x4 t( D3 _
set trade-record-current lput(timer) trade-record-current: o6 p( i( P# U; @/ I1 F; D
;;评价时间
. V: O9 }: a. a8 v- Uask myself [% d7 K* |. S6 j' h- a0 }" ?
update-local-reputation( L- ^: [& i" t: Y" J: r$ x7 F k( W
set trade-record-current lput([local-reputation] of myself) trade-record-current
" f6 G: K4 K8 p3 \( H1 p]
$ l8 Y1 A% w3 k1 w; b3 I+ wset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 m, z" p1 H% }% U& }/ }
;;将此次交易的记录加入到trade-record-one中
9 Q$ j- ?7 r: ]6 y/ Cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& w: }+ S' m Y6 R1 A# vlet note (item 2 trade-record-current )
$ k/ i9 N* |! p1 W- Gset trade-record-current
" v2 Z! g9 S. A- ^" \" [8 f(replace-item 2 trade-record-current (item 3 trade-record-current))
, j+ b+ R+ @. ~# j1 B8 Vset trade-record-current
2 m% M6 c; g& X' I, V(replace-item 3 trade-record-current note)1 j* y1 E9 w) z* [# A
% Y5 ?$ Y2 x7 b8 d7 p; p
5 N/ o% v8 q, n" ^9 uask customer [6 ?% p0 R% N* x/ i
update-local-reputation
! x% d6 |, Y) B2 x& ?4 Pset trade-record-current
( ] C- a+ |! b6 o* I+ x$ g(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 B, U: C5 B/ @# d, l0 d( a]3 N0 P/ B+ k' M; x6 ]& o% t
% R( ?5 \& Y# g/ f9 P7 A5 l3 J/ `& Z$ I7 ^) L j
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! { o1 L. S5 K+ O' D, q5 I9 E; I. {, Q% V) ~. [4 [; g* r* B
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ H+ p1 o9 y8 R2 `8 G;;将此次交易的记录加入到customer的trade-record-all中, C! | R' k) t" Z& U+ |9 B
end+ R# Y% A% v2 x3 o' ?- i0 j
% X2 r# V* v$ P9 r6 R) `
to update-local-reputation# ^3 i/ D$ P6 S: x0 V/ Q8 V
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ P4 q' o/ [0 F! w ?1 N2 x5 r
3 A% y( g9 A; b+ c$ Q4 b1 |
. u- H; _$ e1 |8 {$ |2 X;;if [trade-record-one-len] of myself > 3
" I* H5 `# Z5 B! u. N) M' v& Lupdate-neighbor-total
1 B W9 T8 g. t) _0 H- r;;更新邻居节点的数目,在此进行
+ ^2 H+ A2 @! M' j( p. Q- w" ?6 Jlet i 34 N( x& ^% r/ g/ E0 z+ W
let sum-time 0- _8 q- `* k8 o$ F. {* ~8 G
while[i < [trade-record-one-len] of myself]7 Y) U3 W: g) {2 x
[
4 G! M/ f b( _& H8 c5 a5 `: Bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; n1 M- d. A, \9 F$ g4 }) Dset i+ p4 h! ?5 S0 O. l8 o: D5 m
( i + 1)
. q X7 A, Z) w5 t8 }5 E6 j]
8 O* j4 Y Z- h; ^3 qlet j 3
2 Y! T& Q5 [2 d* Q) blet sum-money 0
8 h F" ^ L! dwhile[j < [trade-record-one-len] of myself]! H6 M4 l9 u) x, m1 z' J8 i
[3 P" N0 @: V' Z0 h6 W) c G
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)
" G" c0 F6 |/ t/ n, tset j+ r' v6 p$ Q5 A- b7 r G
( j + 1)$ v: u5 @. q2 L; T. H0 w
]3 D0 x1 E( T5 z) s9 D
let k 3
2 E0 y3 d7 Y$ H) s) u0 ~2 tlet power 0
! F. `% X6 _8 }6 D) ]2 ^& Klet local 0
+ @& a* f3 D9 A9 @# ?while [k <[trade-record-one-len] of myself]
$ V8 T# t7 g9 {[: R$ Q0 b2 a# i* a, v& e
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) % m% i: p( V* [& Q+ q! r
set k (k + 1) A/ X2 u# }6 o0 e
]7 w4 U8 z: c, ?" A4 u' l
set [local-reputation] of myself (local)
1 K; l0 c9 g/ B0 s9 f! Pend
$ C( L) |3 }" b0 {$ I' @ ^% e% v [* I& @$ J7 @9 L) ^( m7 D( _
to update-neighbor-total, f0 R1 g" K4 v& W# ^3 {5 M3 P
4 i5 t" L" j+ s1 B1 o, e, Wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; F9 [" C: x4 y% H: ^# J
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end
& s3 o0 F" p) i% s
5 \- O, q. \3 @% \; M# N; Pto update-credibility-ijl
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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。
3 D# @9 a9 N" i, Wlet l 0
: C0 T3 `* }1 D* a! @while[ l < people ]. q( N& M! s( d! ]
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer): D: Z$ ~. ?. `0 ^& a$ n) \- W( j8 Q
if (trade-record-one-j-l-len > 3)0 x. I, `; f1 [. W0 a
[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
. _ x" P2 @3 W1 R2 _. _let i 33 ~4 l+ j# j" m4 Y
let sum-time 0) o% y i+ X j. B6 m \
while[i < trade-record-one-len]7 z: Z7 l1 m# G6 W; o' K
[+ N, s3 R: D! N: O' J% J$ }) n
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 i4 n6 b9 [: x6 c8 M
set i: P) M8 {+ b/ H
( i + 1)
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1 G) P- z8 ~7 {: Q6 h3 `let credibility-i-j-l 0
& C6 b3 a& l8 [7 h2 S% G3 ~8 P# `;;i评价(j对jl的评价)0 M0 i+ S @1 I2 t. `, P
let j 3+ k& S( @' u1 ?1 R) U7 j0 K
let k 4- w% A: j$ f1 E7 H. N
while[j < trade-record-one-len]
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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
5 B( x5 o! ~7 I& j; P5 Gset 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)
1 O Y( w2 t9 Y0 R' A6 q% `. kset j% k2 I% y! i4 J) |$ I& e- t8 h
( j + 1)% Y( J& \7 [8 r0 t2 p. W9 g8 g
]6 S+ G5 ~5 k6 R. T$ U0 R! n& T k
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 ))0 l. m# z+ A- m) m- Y
3 V* [ P7 S0 n5 i
. C! J" p- C6 q: i- dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
i$ M4 h# J5 }# P. L; p0 I;;及时更新i对l的评价质量的评价
8 k" w8 s: D0 C. M K, \* b: ]set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 ~& F) [# N1 c) @
set l (l + 1)
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end
5 \9 ?2 M" ^, z* v& t( B% a R
4 L- F# @/ c3 t! w* ]2 fto update-credibility-list
# P w3 ^- P( Z u C. E2 llet i 0/ y" t8 z7 X8 _3 Z! P
while[i < people]5 J% c9 I" k3 I9 U* V! [- j
[6 {3 B* C0 m: C/ M; |8 T; `# W
let j 0
: v1 k' r2 [2 D9 @% d7 Jlet note 0% d1 ?$ \% Z3 x" s9 T! b0 x
let k 0
$ B9 I- K( w, @, }" B;;计作出过评价的邻居节点的数目5 q# V' P( D3 B# z' y, c4 S; |4 [
while[j < people]
6 F4 l3 y* H7 Z# ?[$ H" i0 K: W" p+ d
if (item j( [credibility] of turtle (i + 1)) != -1)
$ ] @* ^. `8 P$ B1 |;;判断是否给本turtle的评价质量做出过评价的节点6 ?7 F5 }, y' e4 E
[set note (note + item j ([credibility]of turtle (i + 1)))6 R8 B& {- g4 g1 h L
;;*(exp (-(people - 2)))/(people - 2))]! \" V7 h* U9 ]/ ~: B X
set k (k + 1)
: W( d$ d0 L4 L, @5 o8 N: q]9 Z% V5 {, N: E+ z/ X2 p: n* p
set j (j + 1)
- j9 r( E8 L3 G Y! ~8 V$ S. ~]0 U3 W$ J8 c' d7 `
set note (note *(exp (- (1 / k)))/ k)
" M8 a$ I7 A; `1 G6 f& L) ^set credibility-list (replace-item i credibility-list note)
0 `) ~. c7 u' i! sset i (i + 1)
' o2 `5 O! u$ j" P. a( w]
. Q' s' O) r& E+ A2 k W; x8 Yend8 j! P. `0 w5 ]$ y; _
! _9 ]# J! Q4 [4 x! {% c8 v& o! \to update-global-reputation-list, P2 ?$ |7 D3 H6 O$ p( o" ^" X
let j 0
2 x' W. A; @& D$ \1 W5 `- w0 Twhile[j < people]
- x* D) E7 J; I# L[
- z8 B5 j# e, W: b# Tlet new 08 r: N) g. R5 ?" W7 R( {
;;暂存新的一个全局声誉
( Q! ^/ W: l" ~( S0 @$ z8 Tlet i 0% P% O$ R) ^$ G' @( x; M' [
let sum-money 0( m3 f, i6 O9 h6 f5 ^$ h3 Z
let credibility-money 0
* A5 r o8 u0 n @+ {while [i < people]- e+ V j" J" R! x; T
[$ q2 _/ Y4 h( ~" g
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 t5 m/ |$ G! ?8 X. T) c+ u
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- n5 [- a# d/ V e+ f* t, aset i (i + 1)
% N1 R: ]+ b9 H2 n]
0 X) L1 g% Z0 t; l/ rlet k 0, Y! d' X: R* w& `. }
let new1 09 s/ o4 Z4 m! Y! i# ~, p
while [k < people]
5 _9 |& o9 L5 ?! d[
3 t: t8 ?7 x1 c. lset 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)
+ s$ F+ X% c8 }, c/ vset k (k + 1)" e3 B3 |4 r2 R$ }; [
]' [% j* Z4 T) C
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ g/ o" D& o v, J, H" w( b. B& Wset global-reputation-list (replace-item j global-reputation-list new)" c5 _, B% K7 o$ E- z
set j (j + 1): u0 ~* R. d9 z9 ^9 J$ L
]
$ ]6 t0 g. z h2 D' D% F7 Tend3 j0 J- I$ @! r! R9 S% F" v
* W; Q& |" q* a4 } Z
& A, A6 W& |% E- u5 H& D7 a" [* y: \
' u# o! {3 L& R- M% `2 Q4 N
to get-color2 N' L$ b4 G% ~2 R6 a/ @
8 n' ^; J/ ^* o) M7 pset color blue
& e5 O3 |( m2 f! Y) w" c6 [end4 _* T# O o( b2 F1 _( B* S, p
) a; I5 ?! U. @1 W i9 O$ q0 q
to poll-class
* j' N! {1 D- s" m' q. \7 T4 oend
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; m# n1 K0 {" q; |: O9 kto setup-plot1
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+ G+ K# B3 S! d9 ?- R3 p2 W1 mset-current-plot "Trends-of-Local-reputation"3 D. n" O, d7 @. a% C% b
6 O, g$ e5 x1 q/ J H- d/ L, C' c) ^
set-plot-x-range 0 xmax# e. |; }& N6 |& n- j
' X1 _/ U0 U% V4 o" m+ m
set-plot-y-range 0.0 ymax
h f* p1 g" ~5 D$ Yend
/ }* S2 O* W+ i. J6 _& X3 w, Y. K8 m
to setup-plot2
0 ]/ G: Z4 t7 v2 a0 I- W2 {8 i4 O! |9 o3 L5 N4 O
set-current-plot "Trends-of-global-reputation"
9 g! j# j; ~( X% r6 S% \
6 @ U- X8 R B& y" ~# d3 mset-plot-x-range 0 xmax+ H: N" X) A: v" i0 T3 H
* d- e! v) s$ h3 k) _) Zset-plot-y-range 0.0 ymax
( |( C* S9 z( T! m$ Z) O1 kend4 q) b9 f: e* h( N" a4 x
. A8 \ M! G6 I- S& i5 O
to setup-plot3, x4 I& d ~! ^, W
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set-current-plot "Trends-of-credibility", T! @- F6 }' Y: _6 u- Y! W
6 |; R4 U0 l7 Yset-plot-x-range 0 xmax
# q7 U* R' G* K
* l; G4 p q+ O+ f$ nset-plot-y-range 0.0 ymax+ y7 a" V5 o. P* ?; Q0 t/ H* S# o, m! _
end
- ]' J) V+ n; ^0 ?) P; h1 K) l4 c* s
to do-plots
7 g1 |0 o! s+ J( ?set-current-plot "Trends-of-Local-reputation") Z1 w) J$ ~( [4 a, |
set-current-plot-pen "Honest service"
! Y1 {" h3 d8 x7 {end
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, N5 X# o. u |[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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