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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
$ i1 \! Q- g2 c, Zglobals[
2 p z: X1 w1 t$ c* {7 A$ y1 t* y: fxmax
- U* k. f0 v: h' H+ H$ b2 mymax3 b7 A" c4 G- X& m5 ?- ~" p% E/ r
global-reputation-list
9 d! ?& h& \; r8 q* ?& q: U. I, Z0 w2 v5 w m3 Z) ?
;;每一个turtle的全局声誉都存在此LIST中1 Z$ D" w g0 B2 R
credibility-list8 x8 L; S' R3 \2 f
;;每一个turtle的评价可信度
$ Z9 G% ~! w8 Y# C9 Y% mhonest-service
+ |1 k) c# f; n) l, Q/ l6 iunhonest-service
9 y& k2 V0 L, \oscillation9 D0 s3 r9 e. ]+ x" {. S. v. w$ I1 A1 a
rand-dynamic
8 B* [+ d# U6 J]# ?9 E6 e0 b( W8 O/ P
* E, ?! E4 \( `% k
turtles-own[
) Z1 ?( m; W! }, C* O4 Btrade-record-all" F2 O" O0 c& P% t" W
;;a list of lists,由trade-record-one组成
L" j0 b" o; htrade-record-one% Y% D9 }: P3 b# Z) [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]& E4 Q9 B. L- C" P$ p
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]' \" z4 l5 V( T. v+ Q4 I& s, b
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# ]4 R2 C' a2 V
neighbor-total1 v! g! K/ _& P; y" j
;;记录该turtle的邻居节点的数目
4 K. J. }. i, j/ X' O9 otrade-time8 ?6 E0 m( @& w1 ~
;;当前发生交易的turtle的交易时间
' D! @5 Y; ]9 \! B+ b" tappraise-give
1 |! L- y" [' t% E7 W;;当前发生交易时给出的评价
0 {) O7 K: D$ b: fappraise-receive0 H! i/ o5 N0 {2 K0 N
;;当前发生交易时收到的评价) o* u; w9 z3 Y- h
appraise-time
7 \+ }( T5 j+ L2 ~2 O4 } V;;当前发生交易时的评价时间 G) i7 w3 {8 o2 `
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- E+ q* O) \: ]7 S" P
trade-times-total
8 m# Q5 Z, ^0 e- s6 Z( E& v7 s T/ n;;与当前turtle的交易总次数
9 C6 X- l# |# atrade-money-total
4 F/ K" b8 @0 t! g;;与当前turtle的交易总金额
' [7 W7 x4 G, u. L) |local-reputation: q0 K5 T. t4 Z
global-reputation
4 Q6 ?' J/ ?8 Rcredibility3 v* j" c% y% l# n& t" [( A/ h
;;评价可信度,每次交易后都需要更新) w$ _9 e; j- A0 r2 D+ t
credibility-all
9 P/ C) i; F1 ]7 ^7 B;;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 x c/ A6 A* \
8 M. L w |7 A: A5 N2 M: O3 }% o;;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
! O4 G. T; @5 G( h% @' e' ocredibility-one; u- x9 J0 A& 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
V J7 R2 N, k2 F; k7 T _global-proportion
5 e% L, _" x' C$ i2 i3 Ccustomer0 q1 b9 a- z* K) j4 _6 l
customer-no! h/ t: J& B% S6 f! N
trust-ok/ Q8 B7 O) k4 [( s% H
trade-record-one-len;;trade-record-one的长度
( r, i( N$ q* V0 a% N' U) G) w, }8 S]
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S& \2 c& A1 T" M2 M;;setup procedure
% n4 W* B7 k5 s1 |' L' P7 @5 [0 e' S( e2 G$ L
to setup' F5 r, c9 Z; D/ t3 C7 D4 V/ e. s
1 j6 _- [8 p# p' b9 T
ca
. u; T: U2 x) V; x8 Z3 @
2 s: t' e+ ]9 G0 \, D& tinitialize-settings
: V5 k7 D3 d$ x: `- k2 p. I( O s. \
crt people [setup-turtles]
8 Q5 s" {( l7 d; G# w0 _8 ?( g+ r; z
* Z" a2 j! M. [3 a$ l* m' Rreset-timer0 v) C& {6 ~( i6 |( `2 [9 D" H
) f% L; F6 q8 V- S0 R5 Npoll-class
) F/ N' p$ r" _% T6 G2 N! R
K& G. p! i+ g- f, r5 D: Asetup-plots3 f$ j: @1 {4 q7 w! k7 J
2 o. Q# b% x* `7 r/ r! w6 Tdo-plots5 b. B2 q+ M0 g! ]) c) c
end
" s S. |. u8 d7 K
/ b F7 T* m Tto initialize-settings
; d5 T* X; n4 A+ H" _& H. @& @" X$ n [- Z$ K
set global-reputation-list []' F/ N) q" D* O6 P. l3 v
. L# { m- }6 I- n1 ?- C6 ^
set credibility-list n-values people [0.5]
* I! Z5 s) T! M0 G$ B5 ~4 q/ ?' R6 X9 s9 x" Y
set honest-service 0
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set unhonest-service 0( x% {# d) x1 P
0 g0 ^; ^; E0 f; P
set oscillation 0( T* G9 g; O3 @' p$ u3 u' Q/ v% r
" _7 y% w! e' W, v6 k
set rand-dynamic 0' j5 d# n7 Z3 f& C7 `, B, V4 R
end9 Z& y' _$ N P C4 ]8 d
3 ]7 |1 A c5 n7 }to setup-turtles 8 a: U, a0 ~: K6 p+ K5 f) ?" ~) H
set shape "person"
& j9 m/ I) z8 k1 i: B- z# \setxy random-xcor random-ycor
( K+ I( o" A" O7 N2 A8 C/ |) hset trade-record-one []
4 u1 X+ w8 |2 P9 y, i0 l2 f( L* C7 j: H# K3 F0 D$ w% K5 i
set trade-record-all n-values people [(list (? + 1) 0 0)]
8 w; r5 u7 t* s% a9 l$ W
- P7 Y: _8 {6 l( uset trade-record-current []7 O/ h9 J L; G. Y. K
set credibility-receive []
% n e5 t2 e9 ^' |! pset local-reputation 0.5
$ o, T! t" x6 P# [2 Y# J9 B: Qset neighbor-total 0
8 \6 w: Y; t7 \1 y- Q0 I8 jset trade-times-total 0* I' i2 t# T+ C) y6 }0 c
set trade-money-total 0
" L K4 o5 y1 k v( wset customer nobody
. Q5 h# Q5 ]1 p( g5 l3 K: |set credibility-all n-values people [creat-credibility]
5 q2 p& @" h3 R5 A& s/ W" wset credibility n-values people [-1]3 t% c0 s) y& A
get-color
) ~: [% p* ^- }" i' W( s, S; A. }4 g9 U% G( k+ a
end% ]! B4 q8 W+ u" o! K8 Z# m
; R' L( A3 d- Y) \; dto-report creat-credibility: v+ N3 B* l' g# e, P* P" B) ]: T
report n-values people [0.5]
2 c7 _( P& R0 F; B# i( S( ?* Fend
/ Z5 y) f7 K* x" x3 R* y& Q. \" A9 G2 d* n9 C1 p, ^+ H
to setup-plots3 z' [- n+ @8 Q0 C1 d/ B( j- y4 C
, j, Q' A- J1 O6 n' ~6 mset xmax 30
. }& l" N7 J: n! ?+ H3 J$ w- w9 \- C
set ymax 1.0& h# y2 W. ]& N n! S$ B
% L: E0 Z: G' ~; x rclear-all-plots( j% M" ?, f) c* D8 p7 ?, H
% O' ^/ ^5 H, [) K: x: `setup-plot1) o# x4 g7 t; j) a: k2 i6 e" Y
9 [' w+ N1 t8 I
setup-plot20 m5 p$ s# d4 w% D G2 C- [) d
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setup-plot35 L# x( x9 N4 |
end L) b# x3 w' D. O, z6 @
: U! Z" O% O3 v1 e) A
;;run time procedures# }! d$ K" e( u; `: W. N8 J
& [- t5 Y* N% {% B1 Kto go
1 s' M8 ]8 b1 s1 N3 L7 p
5 R W' F1 J4 W; q% qask turtles [do-business]. Q. z* l: L' G& u; Y
end
$ j0 m) q2 V9 u. }" T
* ?% }% k; f5 V) z# U# Ito do-business
/ U0 U( P4 E: B/ h5 D/ w6 Y8 d% M
: b) u* c8 m& J% c4 j3 W1 _1 K& g8 i) `$ Z
rt random 360
0 Z, w4 Q' t& g/ r# d, r% r% I8 [7 z1 h
fd 1
; ]! d6 a. p9 g* D
/ X4 G: A: ?/ s! O1 l0 P6 Mifelse(other turtles-here != nobody)[
" h# \4 v0 ^0 s; m- j( z3 |6 e+ F% ?
set customer one-of other turtles-here
( {+ G' X5 P# b7 N. r5 @* p1 G
7 d- d+ Q# S. z' X }9 V \;; set [customer] of customer myself2 d- o, H4 x/ `+ ?3 z8 e
' b7 {- |' b5 C6 F, tset [trade-record-one] of self item (([who] of customer) - 1)
( f* K- ?$ Q: H0 d+ ~5 Q: j& P[trade-record-all]of self
1 Q, ^; A- Y7 M% T2 I/ B5 ~. I;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: [% @5 D2 t2 B' {# q" x, {# y& w
' J. l/ g* Y/ ?, w( tset [trade-record-one] of customer item (([who] of self) - 1)
1 i/ v6 P: M) A4 u) h( ]1 g7 }[trade-record-all]of customer
4 ]4 X" F. D S( r4 h
; x9 r( M* K, G- x$ Lset [trade-record-one-len] of self length [trade-record-one] of self" S- b. S; \; d _# d& D5 c5 B
& V. d: q/ C! Z0 ]7 E) W
set trade-record-current( list (timer) (random money-upper-limit))" q+ m" o Q i& I
]. y/ G! D% I, p3 Sask self [do-trust]/ D/ ]) @" p, D
;;先求i对j的信任度' V3 Y7 ~: l0 }9 m, T
2 N. ^- R" t1 n$ z
if ([trust-ok] of self)3 }* ^' H& d- m) {' E% w5 ]% y( ~
;;根据i对j的信任度来决定是否与j进行交易[. i3 S" d" S% ?$ ^/ ]8 H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[* [5 q1 f5 t4 C9 v6 [
( F W4 f* s" N. C
do-trade. {& \5 p. M4 s) }$ q) G
1 u* n- X7 d: w0 Q! T% kupdate-credibility-ijl5 G3 `! W: @' f# w9 F6 o
3 z! E+ X9 _0 s) W" X# h6 G% tupdate-credibility-list
. q0 w: C6 |& F- U, b, p% B y+ [* a* a3 A/ N
* X8 t: q% f$ |& r. u' J
update-global-reputation-list1 e4 ^& e2 V$ Q0 x9 }- h$ z( m
) X7 ?' O/ _* upoll-class
7 f J6 J/ G+ c; [; m2 B
! s5 }3 G) Z+ y2 w1 s5 F+ Lget-color
( m# p$ e: G. E, b9 K4 i0 {# R4 ?5 f1 l9 o
]]( ?% a0 o* @# F4 Q7 Q4 r
) U0 V/ h1 J7 s! N/ h;;如果所得的信任度满足条件,则进行交易
( f9 e* F: m5 Y% f6 f
) O; G& ?# R$ _ y0 T; [8 k& w[, b& g# N+ p$ j6 u1 |" t) H
3 O) ]. f" N9 i7 E% frt random 360
' u* X6 k9 A) ^; m6 S6 P+ R) |' S6 f! l. z8 G8 ?. g
fd 1
0 T* v' a1 P& l8 E' ^* ?% z4 _0 Y$ a7 Y. N. L" A6 `
]& H }, ~' H! M: \: `, `% g
6 m8 k8 r& q, Z# p# U) L- H" Hend! f6 X9 Q, m5 c7 T/ @6 ^
# n$ Y. h% T' c+ Vto do-trust
- U @3 G3 M& D! a7 w/ C" Lset trust-ok False; w' r0 S# n/ n$ V' [! E2 } L
1 a% V% w# g( y1 R( V+ c. a3 h4 l
5 B6 Y6 ?. {+ H& \. y$ F. @4 ?
let max-trade-times 05 a# d& `* o4 y) `2 b
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], f& j# C/ e8 [+ ]' l u
let max-trade-money 0
1 i9 j+ ]6 ^$ eforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ v8 ]; X2 N7 ?let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- r6 a( ^) [' M0 M7 \! M
2 u9 n+ X4 X* |7 T0 J/ E
* @" `0 p/ ?5 z3 B1 mget-global-proportion7 h& E8 } }) Q& v
let trust-value
% J/ j- F- i9 h5 b+ I' 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)5 j8 C4 o0 C5 j, R
if(trust-value > trade-trust-value)# d3 x& J# w6 E' C; A, C
[set trust-ok true]- A' p1 N+ |' [; N$ K! K2 G) w# F
end
8 |; D( `0 v& o1 P# Q7 ?* m2 P; V' p, N9 U6 ~4 k9 C/ `2 n3 G8 K
to get-global-proportion7 j( t4 {0 n( y. j
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% ^3 K! k5 L, I[set global-proportion 0]7 b3 [5 J- h/ J4 l7 q) V. P$ B
[let i 0: K* l9 U& S3 {! L- c3 ?( w
let sum-money 0; ?' J2 t* }0 N7 n
while[ i < people]
5 w2 t/ G! `) y! N- W$ [[; b& x8 a5 m; B8 w3 w. o, A
if( length (item i0 o1 G/ G5 ]& U9 m4 H
[trade-record-all] of customer) > 3 )
+ G, W" `) E- n3 h! w8 V" k# i" G[! `7 l9 C; N# P" B! ?0 `
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' N v0 Z# u# A8 C4 Q: Q; M]
. }6 s5 ^9 V* j: |4 E( G# N }2 r" {# k]
! E, {* b& f6 w( }4 Rlet j 00 S1 j! D3 _0 C4 r
let note 0
7 w7 J. T' ~7 x1 B+ w& p# Qwhile[ j < people]
4 v3 N( T" X( d: \[
$ S2 C5 C; K' Z0 ~if( length (item i" Q' t' }3 T& A/ }' y& X
[trade-record-all] of customer) > 3 )
( }* V$ J& H; C[
0 c, ^0 d* |1 N R0 R* C9 |ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ w% }: b9 g$ u6 c. | X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* l. w# D' l# n( R, P
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. l6 U5 ^% ]) Y, n
]
) y5 i1 \, f" G], ?# z% c& @) [: k
set global-proportion note' Q) ?" C" l9 T1 a1 t
]" t9 \) A" d# l& q
end }8 ]8 n. Y8 T0 A l
* h m8 Q/ V7 p) C: Oto do-trade& i- ?! r+ U# w
;;这个过程实际上是给双方作出评价的过程% F) W N( d& l7 ?8 N* r9 R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: Y8 A+ S. e0 G3 R9 w8 j+ N2 A1 A4 H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价6 R! `, n# b5 M# p) s: B9 f+ O
set trade-record-current lput(timer) trade-record-current6 U" o: A9 C" n5 m1 f- x
;;评价时间5 \" i" L: g) B7 C6 z/ }. q1 V
ask myself [- b3 e) H6 k9 d
update-local-reputation
2 F5 V' E2 E Z- ?set trade-record-current lput([local-reputation] of myself) trade-record-current
8 O3 P7 n% S0 Q& i]. h' w( w+ ]" Q7 W+ ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 \# v: @5 X0 I% y( k/ z;;将此次交易的记录加入到trade-record-one中 G: W4 x4 V4 J) s+ p6 S% w
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& X7 h- i3 i L+ Alet note (item 2 trade-record-current )1 d1 L+ B* c+ v7 O8 M3 S6 C
set trade-record-current
8 H3 @% T' r# v/ Y(replace-item 2 trade-record-current (item 3 trade-record-current))
/ G( W. ~5 J9 ]set trade-record-current' E. d: @' M, ~ Y1 {3 L
(replace-item 3 trade-record-current note)% V/ a! S% I5 ^* @4 B
' A# E) i" B2 r
" B/ ]! Z5 M) ?ask customer [
6 C2 f Y. `% K& oupdate-local-reputation" Q3 f) M6 v8 h5 Z2 l
set trade-record-current
/ w3 r. l- q+ R' M$ f(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: y) i$ Z3 ^$ I* D! i# X]5 r1 ?( |& m: E; _7 l
* ^* T$ K/ l) h# V: S' S8 _; h. t# f! j( p2 E( n7 |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' w( N! S6 d8 A
/ S' D- G$ j+ t- t: K# Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 j" j9 x) W. j1 x;;将此次交易的记录加入到customer的trade-record-all中9 B6 F+ ?9 J) B1 b5 I
end
* j$ }, g5 d0 o" N- k3 g" T9 b& S# [2 Y/ d& }
to update-local-reputation
6 R* @8 H# S' a+ h! e; Xset [trade-record-one-len] of myself length [trade-record-one] of myself9 Y- G" v% \+ [8 A* |4 g/ x
1 X4 ]2 i: @8 ~/ E. ^0 B& ^, l' f
3 d' |4 P6 m5 G, Y+ z;;if [trade-record-one-len] of myself > 3 5 Y' l; c: l0 Z7 Y
update-neighbor-total
. \* g; [" j0 l8 I9 m e0 s;;更新邻居节点的数目,在此进行% L; S2 c$ s' k, D; J8 R
let i 3
2 k' q; {/ Y$ K# llet sum-time 0- V! H! C& |2 Y- i( \$ I
while[i < [trade-record-one-len] of myself]4 u& S0 q/ ~7 h* ?
[
2 u0 d: z" s. _* g' ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), `- r# P" u1 X$ f- k& s
set i$ D) g% i/ ~# h; {0 L7 t* v
( i + 1)$ @2 a/ H+ L4 ^' [9 F; f8 S$ ]6 t
]+ ?0 \4 R5 {4 n- N5 N) z5 J8 c2 o
let j 3) _% N3 L" a$ D2 i- [% ?
let sum-money 0
& @' U6 L a K8 E& r$ Y2 N2 J2 v( Owhile[j < [trade-record-one-len] of myself]3 t' b k$ w* y9 s
[
. f) i& z7 F. J* H5 p; @. Fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 d% F" @' H& i! O
set j
/ \9 Q% n: ~5 w' g5 B( j + 1)
/ n6 W4 q0 q9 L]& H( f+ w+ k8 s) H
let k 30 _7 R3 G8 O4 u& Q
let power 0
+ H0 l0 V( i! G7 l! y( jlet local 0# ]. x. R1 {" m+ [( N
while [k <[trade-record-one-len] of myself]) r Z6 ?& D$ f1 x. N
[
: l( n, M+ n ^( Uset 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) ) Q" x: w0 ~) ?. ]* M# F, ?
set k (k + 1)4 y- J, f1 j5 R; k
]0 ~/ Z% t2 r$ l: P2 L8 a5 n: N! [
set [local-reputation] of myself (local)& a) V) B" b( F7 l- Y# m6 n4 ^
end: P! k8 l. Y) R5 H/ M1 G2 G8 u
) u' s3 `4 T' O! V2 f6 f4 Ato update-neighbor-total; J6 A) P* _& K6 T- j
) S& X7 Z* H% |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& _$ ]) z+ @' i9 r* a5 q( Y6 G7 e0 R9 Q! n" O
( Z* Y/ L C$ P9 a; e7 D
end( L: W; r% U' h# E5 X
& {8 X3 a. H5 E; I9 ~2 E
to update-credibility-ijl - r8 u# L4 C. l: n
+ }0 P, f, T6 h) i* t6 [;;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。
\. \' ~+ d9 ?% U) Plet l 0
* Q5 ]+ t$ c$ U; {while[ l < people ]$ L. i9 F6 l" Q& ?+ r$ ]: [" ~
;;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2 p6 a1 t5 J! E* \5 Q. a
[4 C% C7 w8 P- [! j9 u3 X
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 p: s, e1 v1 o& X8 } {! J' eif (trade-record-one-j-l-len > 3)/ W* P; [4 f4 F5 }$ 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-one( ^' o# K+ x% A; r; v: M e& L3 R
let i 3. v0 ^( t' D6 ^ [9 Z, [
let sum-time 0' d) S4 _, r0 z# ?" F$ H% g; q
while[i < trade-record-one-len]; C+ N4 N, F1 g( C% y0 x7 d9 f
[9 F8 N( B; z4 u( G
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 f) b( L) o0 W: s# ^9 r4 c
set i
( h6 s# Q1 P2 \( i + 1)
4 H! a4 J+ r, N; X e]
5 _$ w2 Z6 f$ K. z9 }let credibility-i-j-l 0
r! X u6 I5 V; S;;i评价(j对jl的评价)
N- g4 V3 n. @" jlet j 3. B$ S9 o# F6 W/ G% \
let k 4
g) h, d* y4 K8 u& m0 Nwhile[j < trade-record-one-len]
' H; r. t Q' x$ K F: {[. D1 H. C P6 [* I5 ?' ?' O
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 P: @* G. z1 q3 y! x& Z" \9 Wset 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)) R. s( v* K6 _
set j
6 d/ F& _6 h9 B# N3 B5 e' l/ c+ M( j + 1)
5 z' S1 C0 i8 N/ U]
# A2 N" I/ L# Y! h4 }- s+ Z2 C1 xset [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 ))
: `/ T9 M. s9 }$ L z3 V
" e2 w- k0 [- u/ I% \1 i% G! k2 x
1 w7 X7 O6 \: d- w5 s% U: E4 |let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) ~ J3 B! t' V;;及时更新i对l的评价质量的评价
3 ~3 t6 _1 i" v* E7 S& I1 Z; @: hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- _ f1 d: ]8 Pset l (l + 1) a, |4 I+ b3 b) X, i, r
]
8 v, {7 D) b# m2 Z' ^1 fend
0 [" ^7 J, s5 `4 U
- e, q# b5 B" U" @( Hto update-credibility-list+ X$ H4 N7 d0 f( }7 s5 r
let i 0
; c; N/ v/ S0 Q" X/ `6 Rwhile[i < people]
6 i& V: ?) i; z# ]. a3 y3 p& C9 i: h[
( Z9 U5 j7 S' S7 Ulet j 0
4 ^ p+ h) R/ I- Hlet note 03 O! S z' c) o9 g- o8 e
let k 0
; Z, a6 Z) q$ w;;计作出过评价的邻居节点的数目/ _% E" t0 `1 g6 D* |
while[j < people]
s5 d( ?. y: w+ Z% T[
9 @+ G8 j* c+ B6 gif (item j( [credibility] of turtle (i + 1)) != -1)9 k5 Y' H& x4 g9 ~/ L8 \
;;判断是否给本turtle的评价质量做出过评价的节点6 T$ r/ C1 S& k6 [/ L7 b) I. J
[set note (note + item j ([credibility]of turtle (i + 1)))
4 M3 b) O; @8 {. V5 C( s;;*(exp (-(people - 2)))/(people - 2))]
& s2 M/ P- e4 e" m* e( Uset k (k + 1)
7 B% l O6 X# J3 ?& ~$ h]
, c% T( M2 V# qset j (j + 1) C2 W, X3 j' k p3 r) G
] P3 K- J4 `2 l) r) V- C/ C* l: v
set note (note *(exp (- (1 / k)))/ k)
+ F% |" ^7 @% V5 A4 ~1 bset credibility-list (replace-item i credibility-list note)
9 g+ b" T, ?; R) V; \: eset i (i + 1): ^4 @# a" Y8 m3 _: A" x
]
9 q. V8 R2 n& {# k0 ^end
. q% T: Q+ Y: o9 G! D6 a: {7 f/ ~0 H" G! ]# m
to update-global-reputation-list
' b) w0 U; L/ l1 Y% G" Mlet j 0% K9 w3 @) Z* c" C3 f
while[j < people]
/ P" |; C, `2 A+ z2 v[
* @( u3 Q6 N- ~. W$ ` V- |0 slet new 0% r' y9 `, \. r* X
;;暂存新的一个全局声誉 t7 b0 I2 L6 H: p
let i 0
1 {( w0 X+ c% O; {let sum-money 0$ }" F. _! P( R0 @2 ~. Z
let credibility-money 0; K5 g6 \/ w! `$ Y% @; V' R
while [i < people]
9 j2 o; g8 V! Y* d[; u) `$ [+ w+ _. ]+ m3 ?/ }7 C0 p
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, O# m( t3 ]# M* R9 W' U# ^set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
`$ g- Y6 f" ], H3 a X) Gset i (i + 1)1 \+ C$ b h. H7 C4 E" ?# I
]
" J3 @( e& j* I0 U5 ?6 ilet k 08 G, R! V* \, n7 U7 L) G
let new1 0
% `& F9 n4 s- i) U4 n! G! Iwhile [k < people]; \3 N5 k7 t: B' i$ W! [
[1 T. o0 R Y) `& u0 G2 \
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)4 b: e" Y) p; w7 ~3 e; l, ?3 h
set k (k + 1)
: Z5 W; E" t5 a7 U6 F]
8 h4 s9 L8 j% D( `3 `! Pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 E% b$ |% ?$ p8 ?( G( x
set global-reputation-list (replace-item j global-reputation-list new)* I7 Q/ }. ^9 a! U
set j (j + 1): t: B4 c, p* }; D; e f6 N
]& f2 C0 \) C& @. h! B4 }. c
end
; }" P$ g# l$ Y
3 K2 C: b6 \+ P" H6 a! B
: S: _3 ^# }; J; _" L$ d5 K" q
6 T/ N9 @6 O& x- Y& f* lto get-color6 ]5 g/ b# `4 E; N4 r) y- q9 G* M3 T
" n3 X/ B! C9 G( O. @set color blue U; `1 e8 i" N4 Y
end
* R, Y; W0 T" U
0 _1 Y' h5 n8 Z9 y1 nto poll-class& Z; C# r- b0 u3 b, z% ^
end" f& a7 l& D9 S" l$ b7 K
& r- F% w* f% H c; T, c
to setup-plot17 @/ T' m# O, ]- Z; ]+ [
3 j8 ?0 k/ Q" {9 r5 I' K. Q
set-current-plot "Trends-of-Local-reputation"& k& B1 @/ V+ e1 Z7 H' s
4 y4 r6 K2 _+ A7 W0 Mset-plot-x-range 0 xmax" x* N4 {) q* E; O, T
/ N# B$ _- _2 }5 Lset-plot-y-range 0.0 ymax
3 u. U4 N* ?# Gend
. L4 g( }2 Z- [. H2 u
: ~- Z; }9 W# n7 z' J7 u. oto setup-plot2/ m( f7 W0 C# |6 t1 v
: _; R3 K& x! |& S: z1 eset-current-plot "Trends-of-global-reputation"& k' q O; U0 E: ^
. x* Y2 ?' e q# N# V$ Pset-plot-x-range 0 xmax
6 c. E# u3 q; n! I; N! I9 ~. E/ a( f5 u
set-plot-y-range 0.0 ymax
& h' d+ i6 x- ?5 P) oend3 e8 l, ?# ~8 U( F
4 a9 g' |, U/ [, Tto setup-plot3
0 g3 n5 L- {9 D4 [( ]* M. m
2 i. n3 z" {& a9 `set-current-plot "Trends-of-credibility"
1 A7 r; K* x5 q6 g" O
5 w. }; C' S t, Mset-plot-x-range 0 xmax
u7 A2 ~' e% e- P4 a1 u; k: x1 H; R, t$ R+ x* j
set-plot-y-range 0.0 ymax
0 S: n( e* ?4 V* \5 uend) V: T8 B( @* z1 K
/ G T# W% s- u+ qto do-plots
# f7 ?7 x% s9 S% dset-current-plot "Trends-of-Local-reputation". H. H- V/ P: t; ^# b$ T
set-current-plot-pen "Honest service"
/ X5 A3 {) @; d& ?( `' o0 [end
' c5 a+ n1 [, `% @+ m5 l( T0 w9 a2 A2 P) G- g, o% `. T# {9 u. w
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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