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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 j/ b5 E1 {/ K& j
globals[
+ V( Q* F0 E" `xmax/ ?0 |6 w- x( D S+ s
ymax
: J: B6 w- z2 V; z5 \global-reputation-list5 r$ c( J. T: j0 x- f' f
8 ~. F _$ g! c$ [: h;;每一个turtle的全局声誉都存在此LIST中7 W4 K# J3 A" Q
credibility-list
& Q' Y; h1 ?3 l* F+ E8 h# S;;每一个turtle的评价可信度
' j: \2 A4 c9 q4 q" a* j6 L1 O z! {& Khonest-service
V. z; I; L1 qunhonest-service
$ b% N- l$ b3 P9 V: w7 ^! zoscillation
2 K$ w: `% O. h4 p0 i# \2 _" drand-dynamic
K, Z7 A# k/ ^" a* M]
: O. N" x& `% {! X
1 C/ {- N) c7 ?$ r6 I% qturtles-own[
' d/ x! l0 j! u: v% Vtrade-record-all5 q5 S+ `/ m* m. k$ _( a
;;a list of lists,由trade-record-one组成$ |( U( R+ M; {$ u% f V
trade-record-one+ y- P& O' Y- B0 j& w2 `
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; [, t. l5 b8 }$ ~; x3 S4 f9 L- b' ]! e1 L
;;[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]]
2 b C" n# l+ ~2 R" K3 _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 w3 `6 M# [3 }: ]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
- H" X- G- M$ F+ d1 q, Oneighbor-total0 ^5 o2 u+ V) D: ?. e
;;记录该turtle的邻居节点的数目: M2 ^( b" U5 X$ A `" F
trade-time
7 d# J+ T1 F2 s' I* Z' w;;当前发生交易的turtle的交易时间5 ~2 c8 N3 g+ l
appraise-give
- r% G4 d! L% ?6 A- ^! o;;当前发生交易时给出的评价1 t2 l) ^ |+ D6 j' M/ |
appraise-receive( [' |* Q8 m! g8 L/ W7 a. ^- x
;;当前发生交易时收到的评价, b5 ]0 G. C2 x1 b% P- g
appraise-time
$ g" E* X8 g: i# o;;当前发生交易时的评价时间
) m" j# c: f" n% h( x+ P4 }local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" D% ~" M& m0 t" n3 a! Y4 Wtrade-times-total
! x$ C7 e, M- R; J5 s9 c/ h* p;;与当前turtle的交易总次数) w* a3 m' K3 M8 v3 i/ c- A
trade-money-total
% R4 o5 d& s+ Y;;与当前turtle的交易总金额
: w' n# B4 K/ Y9 G8 q# Plocal-reputation
5 j* _5 f1 e, M+ Zglobal-reputation, o( l; J g, d; w
credibility
* \+ K% l+ t) L% ?;;评价可信度,每次交易后都需要更新
/ a, d* A* H! _! \* l! V! J1 kcredibility-all' E4 Z% @2 ^! U A
;;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* ~/ b/ _2 U/ ^6 a
$ }; N( N5 C$ F5 ?
;;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. y$ {' C9 ~3 B- O
credibility-one2 o7 q' c j: k! D% W$ E! ]
;;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& S! _" B/ m; h
global-proportion+ T" O: [1 H7 C7 u$ I/ `
customer
" U, P% ^8 I) G4 \% q6 b+ d' k. Pcustomer-no
4 \% E3 _& q' |$ Ntrust-ok
, o! f/ I' r% b0 _# _trade-record-one-len;;trade-record-one的长度9 ~0 C0 C( q0 K7 \6 H' ^
]
: n+ U9 B3 j6 E* \3 r% ? W& e1 X. S- x5 A
;;setup procedure0 ]4 B& T! B8 Y# J0 i: S
' ~5 ?) ~1 d( kto setup
7 F: L- e! n0 l f0 o5 B6 N! E7 H* o* e) y3 j
ca# i" C5 x9 ^0 L$ }
5 j) \1 b" @$ d ^0 r1 W
initialize-settings
6 I/ O; Y2 x: \$ v* Z3 x1 U1 c4 |9 H# P, F% _" g2 v
crt people [setup-turtles]0 t. g& Q' B% f1 V
7 [) b( u7 \. H! D) ^! D
reset-timer5 b( |" W' M) r+ {7 c: o
: B* M' D* s% Z
poll-class1 ~- Y' e( L" B$ ]- g+ Q- p
4 `8 {6 s1 U2 I( P: wsetup-plots
. b) F# P' M5 O
' p2 k' l7 A. v1 J. Kdo-plots
" Z( P' O! X3 q2 f5 Aend! |5 p- r0 Q+ q7 ~$ z
- h# r" Z/ d, v% Oto initialize-settings
9 q ^* F/ g% d! c
, t; o+ O$ N8 Aset global-reputation-list []9 ]4 ]- [( d! g; E& v
4 i! K% O; A! J' F) yset credibility-list n-values people [0.5]& p. o, Q+ G: O& M* ?8 I. p# ]0 S
) f, V) b( d. g, J( C9 K: v
set honest-service 0, F j3 r- W% h. I9 C n- M9 q
6 N1 w/ w6 @$ X7 H! |set unhonest-service 0
1 J! d! }4 @+ t* e' J8 ?- J7 v8 p! W
; b" S6 v/ }; p9 cset oscillation 0
0 M* R8 ^% N% n3 d6 I# ^+ f
3 s0 `' A& |/ m% nset rand-dynamic 0
! P) V4 u6 x5 J F9 v7 I) H, tend; P8 }; }3 q$ y- Z3 c
: Q2 p: P3 x* }5 z
to setup-turtles ; l, K3 a9 ^- t) Q6 S8 Z
set shape "person"
& q( S. a$ R/ Usetxy random-xcor random-ycor: r4 ?6 _& J- @ d* r a$ J/ B
set trade-record-one []2 n* H7 ~) v; D6 X0 x
: B$ Y; r# o/ T
set trade-record-all n-values people [(list (? + 1) 0 0)] ; [4 A' g, D7 a: {& ^ _
* Z* B$ u0 V: S* Rset trade-record-current []
1 O. O$ _% `% ]set credibility-receive []
+ o1 m; I; o& g+ uset local-reputation 0.5
0 b% i, I' u9 W' cset neighbor-total 0" y7 e. x- F2 o% _# I/ D5 @* t- L
set trade-times-total 02 s3 c- D q8 x' E) P8 O& }
set trade-money-total 0
5 {% o! g5 S' q7 Q! wset customer nobody
/ e, N# o- j \ A& \" pset credibility-all n-values people [creat-credibility]
, _5 S W& k) W0 }$ f: f( ~set credibility n-values people [-1]
" G+ c7 a3 [$ `+ Q+ [get-color
% G, W& G" b2 n" ^3 v# j0 W
6 e5 Z1 G) B' {6 w# ]; P# Hend; f& D2 e7 f+ b- d4 S
f1 I& E: I1 lto-report creat-credibility
) y4 H" v8 h0 U; I4 b6 Wreport n-values people [0.5]2 Y5 N8 Z) N* N0 M2 L7 n
end0 g* ^& i/ u' Q. I
# _- A- }% ]2 i; Qto setup-plots
5 D7 H7 X& G( T# {$ [8 A: x' X
9 r3 s J( M* W# W4 W- h9 [8 d* I! Uset xmax 302 L g0 M2 ~8 [4 O) M
+ Y6 F4 W0 c; J8 b9 T! nset ymax 1.0
e7 n' Y. L9 v! j+ f0 g( U2 R5 e D. _- K* M6 ?9 B+ ?( P
clear-all-plots" w; l- M# [/ L4 L9 d6 I4 U/ ~& P
; J1 v) p3 a& i: X8 l3 W) Qsetup-plot1
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setup-plot27 g# a) \, |) b. W$ ^- J
1 V) H% Z( V [8 k6 F R
setup-plot3* ]) M; E: b1 {: X6 ^. L/ A; f
end7 g+ S# X9 L- \6 f, `6 [" h
$ Z7 C9 g* F3 E/ B
;;run time procedures6 h/ B! m- ^4 t0 d0 e* h
+ B; _ D j3 x' y0 W. l) V
to go3 y3 U' M% S( u) `! R
2 t3 x6 X. O5 u- N" U/ _
ask turtles [do-business]5 E% c" y b+ y7 `% s
end! Z! X" G% A& ^! c
8 g, L$ N3 t) Z" N' `: n; Dto do-business " i( E2 R5 o# o/ f0 @' m+ y1 e( {
# z& [% m5 O8 d: B" G7 Y4 O
' h ]7 l* @" Ert random 360
1 n8 Y& ?, r+ w" x" w1 h2 z
7 h2 @, G6 P" {! m( w ]3 D+ lfd 15 b4 ^1 k6 `- s. [
" Q2 |1 n+ i6 X' C4 c$ Sifelse(other turtles-here != nobody)[6 T% w# M. }2 A# Y
' T5 e& e5 h. u: Tset customer one-of other turtles-here' Y" X( I3 d9 y$ b2 F) a4 N
& z2 x8 u! C3 p/ E; Q
;; set [customer] of customer myself8 H7 G# d% w; j2 b9 q$ |
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set [trade-record-one] of self item (([who] of customer) - 1)
. {2 d2 W& a' n: @7 B1 Y[trade-record-all]of self" U7 g5 j# a% F [6 s! `0 U/ r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ \2 M0 ] B' b8 O( [6 H
9 M" g+ X. p* P% S& w qset [trade-record-one] of customer item (([who] of self) - 1)- T$ Q: C: Y$ o- n. r2 v
[trade-record-all]of customer
5 ]7 [) u5 V, I7 H% m( }$ j$ T# L/ u% }8 ^
set [trade-record-one-len] of self length [trade-record-one] of self5 ]8 n1 A5 {" q9 G4 a) g
& o: v7 `& c9 k( hset trade-record-current( list (timer) (random money-upper-limit))/ I2 D# Q) j" Q6 d0 [: Y0 z
% D# ^+ F4 N: r# O/ w8 b, w
ask self [do-trust]
& @4 u1 j. J- t8 R; I5 j;;先求i对j的信任度: `2 Q4 S7 E8 F% M$ W
' S' ~& E. I! z p% y4 g2 G% O* Cif ([trust-ok] of self)
# M* m& h9 x% D0 P+ Y1 S$ i;;根据i对j的信任度来决定是否与j进行交易[2 W6 B2 R4 q4 j, {
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 Z" H, Z* h/ E K" x4 X8 N
3 i0 A4 o% q; n- M7 u
[
8 l, w. E- ]& O5 U: @' |% q& m2 t9 L8 `
do-trade
1 ^9 @, s5 V# p, r4 z9 A/ r+ C- X0 h% r. G+ `
update-credibility-ijl/ B4 t7 [ u9 V4 ~5 t
% C& c" D$ G- |/ {1 l2 f# g- Wupdate-credibility-list
) }, ^8 H3 w8 [" G8 J
F M7 b- }: \- q. e* b( C7 w; P2 C# F$ |' v4 I/ {# e
update-global-reputation-list
5 {1 b" L0 ^5 c) D
3 W4 a' l6 e) ^/ `9 H1 j7 [poll-class
9 E, z5 f7 C% x0 b2 z
$ l5 C/ w/ \! Q Tget-color: }" ^: k2 P1 n; |9 N
% f4 c% R. D1 p% o* }
]]
' s; V/ f) o! Z9 d
6 d' D C) [; _! n5 a;;如果所得的信任度满足条件,则进行交易
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[5 q( @/ M) B) a$ a
7 N# `4 r! i0 ?, W1 N, s1 O& Lrt random 360* y3 @6 g, i) o, |! Z5 ^/ `8 M& v: p
/ }* _2 G! ]& Y) G! ^fd 1
# {2 k! F! g U0 r* u, D' L2 b. Q' F) z K
]
# L4 X6 N! S7 C" _% d- ~* c/ l: l; o. {$ U7 z/ j# }
end. N' k: b6 I! g# Z! d% O
) C& ~3 B' H, \5 Y8 q; b& t
to do-trust 0 x3 y( [) ?2 B& n4 [
set trust-ok False
7 z/ a7 R% b/ _) p+ d
) T3 `! G3 f1 k# M+ W/ b5 s2 M( Q9 g s5 X$ Q. [9 r
let max-trade-times 0
C2 f# j! v! D9 N# r- N2 Kforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
, |) H6 j* p/ D1 G0 D3 @let max-trade-money 0
) a% C! g" S& o& s4 fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; g- R1 s! l1 V6 }: vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- K9 y8 C% [' D0 t( B% ]) M
: u! n5 M% {4 W" b b5 R2 e% t+ M
* e7 @+ g+ _+ K1 i; I* yget-global-proportion
, \1 Q4 e- _1 V- m7 `let trust-value9 y7 C- a1 F! k* ?: ~# F; Q5 G) o3 \
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)
; s5 M# M3 D. w' J) P+ iif(trust-value > trade-trust-value)
& ]& h; f. c' P7 o2 l3 ~* A6 E[set trust-ok true]5 C+ T: q7 F, p! \3 W2 Y
end5 e) @0 T! @) ~0 o1 c# s
, k. o- c1 y# k4 jto get-global-proportion
" ]3 s" y; G$ y+ N+ d% Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ L; m& @# b E4 [ n[set global-proportion 0]
3 j2 u1 V- n* d% ^9 m3 c# b K# e7 N7 A[let i 0. s. c- ~# h4 k; q
let sum-money 0$ s. ~9 }$ C+ N
while[ i < people]8 C F3 u3 l/ T) i1 Q
[- A! C- f9 `4 x
if( length (item i
1 I6 r1 l( G6 {* V[trade-record-all] of customer) > 3 )
$ W. h3 N/ T0 h: E8 d% p) V[
# w% V8 V$ } rset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): o$ S0 w9 H& I' m( h
]
0 X: G4 P" |! G) ?; ~5 a]- R1 @) T% g, y
let j 0, y+ ]0 e+ `5 Z/ f! [( J
let note 0
6 @, r* G1 K# d" T/ i. A6 owhile[ j < people]
5 G# ^7 w5 @' n [7 _: l[
4 b) Y8 C0 d$ N3 jif( length (item i
2 q. Q* S1 j* P+ f[trade-record-all] of customer) > 3 )8 @0 [. a. N: z; _, o! k
[; N+ }. R7 a& \$ P0 \( |( p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 u; b7 R) y ?5 G3 B0 ?$ i
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" H! H5 F4 D/ `3 {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ h0 A4 ^# y0 B/ p$ o9 ~7 w; e
]8 |) H2 }6 @- \4 d0 U- v
]; D- t Q V7 @6 f4 X1 y9 w( `% B
set global-proportion note" w& I8 x5 [& d/ G- c5 j( d
]
6 B l& }1 S7 w1 |end
" A; {' D8 M- x5 e: K3 i( K1 z7 I, L$ a1 g* a$ L* A9 u
to do-trade
' _ R- B* T) T) f7 H/ k;;这个过程实际上是给双方作出评价的过程
1 r7 c f, n' U" [; |set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 z) X! i7 F( i r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 p$ X( n+ H2 l+ E
set trade-record-current lput(timer) trade-record-current/ z1 d- s0 q& w1 z- E, u9 ?. o
;;评价时间
a+ V' H& u4 R1 Hask myself [3 y7 T4 v. ]( p2 B2 J4 Z
update-local-reputation
0 c* }- Z; @) H* U+ H' Y! J+ [set trade-record-current lput([local-reputation] of myself) trade-record-current
: R- f4 z; {8 d7 r; B' y( `]
6 q* B# ? J, U/ J0 |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 v2 f- g' ~1 u
;;将此次交易的记录加入到trade-record-one中
* k. t" ~) w @' I% }set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" Y) D7 p/ V4 d( O1 O6 v+ [let note (item 2 trade-record-current )7 v- T# a8 V. E7 _' R W5 ~
set trade-record-current9 U/ y9 @) O8 j
(replace-item 2 trade-record-current (item 3 trade-record-current))8 B* I& B M+ K8 ~) c; J7 J L
set trade-record-current
" L d0 [* V$ C5 `(replace-item 3 trade-record-current note)6 a2 {+ H% Y. h2 S
9 P8 o7 O- a. ~+ B4 d- q
# g! B7 G3 E' M1 M v7 {3 lask customer [2 L2 a. U; B1 G3 b% n3 p% z
update-local-reputation
& T) X7 j& Y6 [/ F5 fset trade-record-current
0 C3 w+ p8 c: j h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: a& G; q1 t5 q8 C]. w5 Y3 o7 S, D4 b e
@5 }5 \7 j2 n7 M. l# }# n: L
( s& N- E! p# t( wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 U. [% x( d0 ]7 r9 ^' `! P' m+ A
. o3 v o6 O& X& R* E7 z* Pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 }! ~4 h- _4 t3 e;;将此次交易的记录加入到customer的trade-record-all中
- B4 f1 X+ x3 ^; @1 ?9 X* ^end
/ B8 L$ J5 F+ _. C7 a3 y) u) J' u$ J/ V
to update-local-reputation
# ^& Q& M' j8 \( B- r( ^1 L: y8 s% }5 Nset [trade-record-one-len] of myself length [trade-record-one] of myself
7 K1 v8 a N5 j2 n! \' h
3 f& q/ g# J, ?2 O* I" T
% U9 S( {6 g) g |) d( i;;if [trade-record-one-len] of myself > 3 7 D! ^& x! k5 k3 D- L% i$ p
update-neighbor-total. x. l" ?6 T- i
;;更新邻居节点的数目,在此进行
1 k- t$ u: \2 i9 p/ mlet i 3
( f x+ \9 r0 ]' ulet sum-time 0
" g% I3 n6 k! i) fwhile[i < [trade-record-one-len] of myself]
C, G! Y# e1 V2 Z) ^[' E, d2 K6 X: J* t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) c( i5 L1 Z/ ?) [' n
set i& _6 [& T+ Q8 o/ B' b4 d
( i + 1)5 c+ w% D( N. d5 n
]: N Z- j) T! ^7 \
let j 3
5 W' _- L; O7 ^: Jlet sum-money 0
5 x7 i+ ^7 U& s/ B& p7 J; q- \while[j < [trade-record-one-len] of myself]/ [# {6 O" g( p/ |" x+ \, A
[( H) W' E: @/ U& q
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)) E! y3 p2 j9 L. p" a
set j
2 O1 Z; K3 X) ~0 M( j + 1)# R6 O' O5 w6 g& o6 v
]5 O7 X3 {- g9 I* d8 ?
let k 3
& ?' M. c' f) x9 u7 A' Olet power 0
2 X4 t3 e( B4 p4 G( Xlet local 0
! f( o2 J; }" K0 t2 Qwhile [k <[trade-record-one-len] of myself]
5 v; p/ b7 R. |9 F[
# b' U! @- M- N1 |9 }2 o6 Zset 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)
" H7 z! D6 w4 C7 N( w, h$ Iset k (k + 1)
8 L; q! S3 I) G( b]3 {" o7 h2 `2 k
set [local-reputation] of myself (local)
; g+ E) z* }9 S& ?2 O" d4 @# p3 @end
3 B/ |# ]- ]9 e0 f% k
/ k0 f7 Y7 Z* e1 a0 Y4 l+ {. zto update-neighbor-total
: D- Z, @) {& t0 J/ {1 k( K
' i a/ V8 D* cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ W4 u4 d |# ?; N- C: J7 t7 |7 }% {! l& M' m
* Y3 ~: a8 Z' X5 ]; a/ Z
end
% E# q3 @( S: L3 T: n
3 r( X0 `$ o# g, pto update-credibility-ijl : @) C' B9 Y( R& H1 n" X
) {, v9 [: c) `: Y' W;;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。
+ f% S4 z4 X1 K' H$ q9 _+ v1 `let l 0& G! w6 w9 L4 o. Q% W( D0 M
while[ l < people ]
, @9 C5 q0 e8 s8 L& o+ B6 C4 @" M;;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 ?3 r4 ?) q5 \ Q
[
: s9 A/ I2 m# I" c6 Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 z" e7 F9 E! v: q; d; }/ V/ Tif (trade-record-one-j-l-len > 3); z- a5 a) D1 G# o- p/ ?
[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
3 L: X7 \1 Y, r, w- C0 slet i 3, j) W9 G+ Q8 e
let sum-time 02 s3 y K5 F ]$ u$ y
while[i < trade-record-one-len]1 z/ z. E) e) D8 i; R& H. U
[$ d* f7 T( e& ^, T0 x0 L7 A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) ?4 r. ]' Q( g5 }6 P* i; w" {
set i$ \0 J% p" G" j' K! y" p
( i + 1)2 ]* Q) [# z* h' n* x! F
]% d+ x' Z: A! X2 s
let credibility-i-j-l 05 J+ i( \5 x( G. Q1 M
;;i评价(j对jl的评价)
4 N$ y% n# K3 p8 Q: R' |let j 36 S" G3 s( P- E$ u1 ]; V
let k 4) P6 B) ^; j, h* o6 \
while[j < trade-record-one-len]
9 i+ D0 p6 _, x# j, {" f[
; a* j3 w0 m! E/ R, m; U1 ]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; v/ c# i/ e+ x+ X# }
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)
, x9 j) h" z5 _( o# Aset j% O/ c2 W; K& A9 Q0 {5 [& X% h
( j + 1)5 k, L& H' s; {! Q2 B& E
]" i. O) j1 T% d2 d( T, q% l* 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 ))' }" R/ }- t: x, e& j5 h3 n
! A. q, t+ X- R+ X u x) q, Q7 y2 Y4 N, T4 `
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! E: v4 h5 K" f, d
;;及时更新i对l的评价质量的评价" _# }8 v: a& u) W" `- u8 G
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 ]0 J4 T1 k, g( Y+ {) X
set l (l + 1)
- j3 ]6 I/ G* Q I" j' C: n]( O# t W6 ]3 n# n- @+ E2 Z( n
end8 l o1 S6 f6 d7 H4 [% A
1 q* P+ s4 l4 k, G: c5 Y, m4 l/ uto update-credibility-list
; B; A, L3 P5 E: s2 {- Ulet i 0
3 e l- P; h( T2 W d7 cwhile[i < people]$ k& b: \9 W3 `) k
[
# q1 N+ c% ~) elet j 0
) D ?. e* ]: R- F+ Z# |9 V$ Llet note 0
) G5 d5 i5 S4 O% mlet k 0
; e! ^, I! A+ x: b$ B: I" t;;计作出过评价的邻居节点的数目& u$ D9 I* i( a, J. c& ]
while[j < people]) u% g _7 v: E0 n0 B
[3 Z* V: Y" u/ n+ d; W6 g( p: ~
if (item j( [credibility] of turtle (i + 1)) != -1)0 l. y* M' G/ u2 v
;;判断是否给本turtle的评价质量做出过评价的节点$ v _8 V5 u) }8 J7 u' f
[set note (note + item j ([credibility]of turtle (i + 1)))9 \+ v2 ^) U+ g. ^' p7 B) N
;;*(exp (-(people - 2)))/(people - 2))]1 Y: ]8 O! Q2 t
set k (k + 1)' J* ?: q* u+ z( m2 P; g/ [9 h1 M
]8 z/ h; W+ {/ o( s* h1 [
set j (j + 1)
# T" ?/ N- E! _# _) S& s9 L]
4 V- O/ e6 ?5 a! |* J0 dset note (note *(exp (- (1 / k)))/ k)" Q9 _/ j6 b, x6 l9 X$ P
set credibility-list (replace-item i credibility-list note)
0 Z6 u. S2 T; g) d% k/ G+ bset i (i + 1)# c1 J; _ r# v0 z. P8 q
]
" s) S2 |! q! t4 oend/ O- U+ I/ Q" f3 O( T. E
( c) }" G) c8 h9 R/ i
to update-global-reputation-list
6 S) h, ~- m5 _% K6 qlet j 0
/ D3 o0 t2 H0 v& {7 i2 @$ Z4 bwhile[j < people]
4 c1 _0 f4 w! `3 \; ?" F# ?% ]8 e[
( c$ U1 H) y2 d+ \let new 06 k) @( n8 Q* \% A" @
;;暂存新的一个全局声誉5 a, h2 p9 ?& O% X* T7 d
let i 00 ?0 R4 ?$ ]; H* `* I3 H
let sum-money 0( E# c! L; e) x( ^
let credibility-money 0
- E6 e, e2 E. Y! nwhile [i < people]
2 D; d2 t$ Z% F[/ Z x+ f0 u* F. Z9 U4 K
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 c' @) S% f! e) X: u5 h
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 F [# y: |( u3 }1 J
set i (i + 1)
+ G; c' h: r8 q3 T]: h' ~) N% o& p9 C2 @$ }9 N2 X+ {
let k 0* Z( r7 P2 q" V& U( _
let new1 0
* d1 j V, ^, O5 P) \" |# S( nwhile [k < people]
; o# j* q: T+ M! E' n5 I[; S! V7 t5 S. P2 b
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)+ ?$ [) }" W$ K& s1 X4 D* X7 a3 I
set k (k + 1)- |; j' _) z2 A1 j* O% E% d' ^2 ^
]
& R+ E7 ] p& T, tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 T; W- c+ a; R$ J5 P
set global-reputation-list (replace-item j global-reputation-list new)5 K& y. n7 _0 }$ N% I
set j (j + 1)) s3 l; ^+ {; V' l5 u/ {/ N
]
3 q( C- J, q! { i) K, p% S. aend
5 J$ @. m D3 k- F2 u& z3 y+ }7 i
# y6 \) s3 u! x
5 L$ {' P' o+ S! s8 S& w6 f6 b' x! @( W: K& g8 \' P3 V' k
to get-color
|, u/ J9 r8 K; V& N
) b6 B8 e! ^4 {6 e: d$ g- fset color blue
) P, g& O% v, d3 t/ U3 _! f1 Pend; _7 M; F* e4 g0 U: Y6 n! \0 o
- \/ b3 r# U) ^
to poll-class$ a2 w5 I; a+ d4 N: j$ ~% A: y
end$ o! E# N7 j0 \0 O6 G5 Y) t& }
% ?* O* j" f& a9 d; A: L% {% w) F
to setup-plot1$ `4 x! \0 P+ |, X$ r
) z9 i: o7 v/ G* P1 ~; L
set-current-plot "Trends-of-Local-reputation"- p( f6 }" T2 c+ F
+ ^$ y2 e& N& g' h) P1 c, E
set-plot-x-range 0 xmax$ }; \% }) t, \" ^' e
B$ r( N* G2 x6 ^, n
set-plot-y-range 0.0 ymax
2 }; C6 |$ n7 r; p- B& l% Aend
% }: X. I. K, x* u, I/ ]8 M& c4 ?% X5 J* M
to setup-plot2" Y1 ^' f2 Y1 ?6 K# g2 p) X; f
/ ^7 x; R, W& l' K9 `4 ?set-current-plot "Trends-of-global-reputation"8 `' D( {# u' F& x
# \4 h" V+ Q7 d8 K; f. o0 q
set-plot-x-range 0 xmax
0 v) R8 {3 ^7 e( n
/ A! n5 Q3 h( o) ^" W& Eset-plot-y-range 0.0 ymax
9 ^7 I' p& U% v, f! q- Xend
; {4 y( _9 m5 k4 D
4 L/ u+ j! W* t, Y2 K. Z3 w: N" cto setup-plot3
8 R" J7 G- s6 q8 j( L9 u6 f" S+ B9 y/ v
set-current-plot "Trends-of-credibility"4 z# q+ S& X5 P" I1 ^, B
( |% S& R! e) Aset-plot-x-range 0 xmax! o+ p# Y8 O& C/ ^
& @9 p/ O7 i9 s5 f, ^4 i9 b9 |set-plot-y-range 0.0 ymax/ r! y3 w1 D; a% I5 o
end& y0 m' i) f5 B
& j; ^7 i+ f5 T' Xto do-plots
9 G5 m" `% R6 @) Dset-current-plot "Trends-of-Local-reputation"
. a& v3 N- t& k& P Cset-current-plot-pen "Honest service"' y% F& S0 d* s# A/ Y2 v
end
, X4 `( A/ v4 y1 a+ B" r. A, j) d# E7 B7 t
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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