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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" [; e! l5 t$ \+ i+ n0 {% m
globals[
$ \6 \: j$ T9 p: q! Lxmax5 P. }# V t- Y6 f) C% V
ymax/ B! {- g. b# w+ x3 o
global-reputation-list
7 k7 @0 s/ F& P! J/ _. P$ F% ?- ` I" ~; X, {5 i) z, I1 q8 C1 m
;;每一个turtle的全局声誉都存在此LIST中
& b$ g0 b4 |2 u' ncredibility-list3 d# j% g0 \. m8 d" T6 n" g
;;每一个turtle的评价可信度
7 t3 D% e4 V% {! v e8 R& Z" vhonest-service
; B8 n0 @; N+ D! |7 d+ Funhonest-service7 k4 Y! u# D* X9 R
oscillation
' v, f" A% a& G. nrand-dynamic5 U: s. R5 _; o$ O8 e& n
]
1 C! F# C0 c" F: X, |
5 u5 m& D, i4 V4 Rturtles-own[
, q) B% L5 Y- V& e# c V1 Strade-record-all
2 H. d3 @& l+ H9 l;;a list of lists,由trade-record-one组成
1 [# a: Q; o, M2 I$ i) vtrade-record-one- z4 Q: k' H4 K8 E, k
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' `# v& u g, s4 b0 x) W; u
; i, O1 j' E! H9 c/ L- I3 f
;;[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]]
; D6 g* q1 r. A( x7 Utrade-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 z5 y7 c3 zcredibility-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. A9 a/ r* g p& T
neighbor-total
8 K5 B( ?. m% `. E4 J9 | e;;记录该turtle的邻居节点的数目6 o: ^$ p! Q) R" h* s
trade-time0 |, {* [5 h) T0 A+ b
;;当前发生交易的turtle的交易时间
8 i% U' u' P3 I6 E3 E9 tappraise-give: K) ~4 I; ~) F: p' f
;;当前发生交易时给出的评价
; W9 ?0 M3 L5 ]2 t! c2 yappraise-receive
' ~4 F9 F Q: D7 g( p;;当前发生交易时收到的评价
1 m" U# a3 v) m# S# x0 V" gappraise-time T) R! J; \; i% d! F$ J- p% I
;;当前发生交易时的评价时间, j* Q) C: H3 d! h8 R0 D" r
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, h& O, G7 r+ A% b6 `
trade-times-total3 |3 q1 X& w9 n3 v) D
;;与当前turtle的交易总次数) d: c$ }( L5 m+ B) b. T
trade-money-total
2 n) x) o; P. ]1 ^( t;;与当前turtle的交易总金额( |, x) m/ \* e5 G
local-reputation
3 K9 ^% p) k+ m! Zglobal-reputation# }9 K" h5 k- W2 P) v& r4 r! V
credibility- q7 d' P6 k$ i' t X1 k4 l
;;评价可信度,每次交易后都需要更新4 T: w7 b& R$ \. h1 }0 |+ p! P
credibility-all
! t& d+ A: n, @;;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
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* e1 }& S1 B& P. l6 u; t" Q;;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
2 f" i9 p. ~8 _& ncredibility-one9 A% R# K | g o' ^, c0 \5 \
;;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
3 h9 H! a0 |. ]9 |* I, F. w& Lglobal-proportion7 a" D/ s w2 w2 @' Z
customer; U U+ e/ I. e/ {/ a
customer-no
g* B1 K5 C. A$ V1 Xtrust-ok
2 T1 h7 z# C$ g; y( B0 Ytrade-record-one-len;;trade-record-one的长度6 C- ^1 V+ v4 s+ v( a2 w' X
]# B9 G( F1 I3 u/ S
/ g. x4 V* Q0 ~& Y/ v6 A2 o
;;setup procedure+ L' T: s3 d2 i* d# c4 \/ _6 n
3 _' S, N1 N6 c
to setup, l, O5 M: T* ?) c6 a$ Q
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ca
5 K. l; p' [' ?& G! H X& [; V
@; I" u7 ^' |' t2 t/ D) y1 _initialize-settings
# w1 y4 O, g7 }( x
8 [. S$ J. a' j7 Rcrt people [setup-turtles]
4 B! Q$ J$ W# k; T: b0 R- \' X- G" K& `
reset-timer
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poll-class
2 o. j0 C2 y2 {$ \" b; W: z
" i, N& _9 D7 v; Y" Zsetup-plots* j) L: E/ e! @ s( D
9 d$ o; e9 M2 j5 v- ^do-plots
, R8 [6 s6 p' c7 k) a3 U4 W) q* uend! }; i, b( Q) q f5 {1 w
* {: S; S! t- y" U( n
to initialize-settings
6 B1 E3 i& Z) H, z& P; ]9 W$ _
' z; W: V' s1 f5 `* n* Fset global-reputation-list []
2 } i/ W* V- j7 k. u0 X7 X0 T' N4 O& O; U: q; _
set credibility-list n-values people [0.5]8 X- S+ E7 q, K0 m; L# n- d
4 ^' y r; L& L5 M0 @
set honest-service 0 |, B% ^! ^7 C- j, d# `
$ U" a' \" \% D7 R/ `3 t. Z* `set unhonest-service 0
6 @/ \1 n! q T5 N. M* N$ x8 H. i' t- Y0 i
set oscillation 0$ r' W" t" K( [/ a7 g8 E
: B2 d2 D4 @2 h$ o$ W4 c: C* P1 ?
set rand-dynamic 0
9 n. k8 g( U/ r& [ w7 w% H) Dend
n. `+ T( a \: {# t# U
0 P2 O3 l( U& y6 S3 |; s$ dto setup-turtles 5 ~4 H$ a( q9 M; V& t' |: K5 p- ]
set shape "person"8 [' }' {# c, e# c- |
setxy random-xcor random-ycor
: ]$ j2 ~- w" X' ^set trade-record-one []
" }+ W( A6 [3 W/ p$ V- E! c+ f5 f4 n. C2 E* q6 j: d
set trade-record-all n-values people [(list (? + 1) 0 0)]
+ K" P, [; H. X+ j
# r3 m2 ^5 R, r4 Z; R* Vset trade-record-current []! d' b' q& O- M+ Q [, K
set credibility-receive []
0 l; J A0 J- x+ D; g, sset local-reputation 0.5* g/ m6 q, L, k2 _
set neighbor-total 07 q3 C2 \& Q0 `, T8 Q* w2 b+ u- t
set trade-times-total 0
* o( o7 I' s. p, q5 k. L' \; Kset trade-money-total 0
# {; V% p% B7 H( `) ]set customer nobody7 m. J5 F6 O% C* R" [, ?
set credibility-all n-values people [creat-credibility]
0 j/ t- o U4 u/ L; R) m& L% kset credibility n-values people [-1]( u% v5 y9 ?" U1 g' r+ d# p" w
get-color4 I) U: H. E, v3 z$ B g3 G% P4 S& e) G
9 G( W/ c ?1 G# i' X. y
end
+ [9 e F/ \: i9 f# r& t8 W8 W E7 G' l8 @! N# w2 j j) @1 l) ~
to-report creat-credibility0 v. J* O' y2 q% O
report n-values people [0.5]
& A2 O5 s$ R6 ^4 z2 oend% p( @$ v: B4 N
% H I |: c4 A) j4 r) vto setup-plots8 o3 h3 `& v4 @
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set xmax 30
0 l; w4 B% z* `. M* d+ ~* N# \8 ^4 U; s3 y, w
set ymax 1.06 s; m9 W* R/ K" P, r1 J* G$ c6 t. C% U" w5 S
- ]( d; V% O. Gclear-all-plots
: z' x+ k( c* U2 l* L0 [- N* A6 t0 c, }/ e9 a- _, p j; d" Q
setup-plot1, b/ N* S2 ?: I$ [4 r
+ {) m8 f( U. V4 {4 Lsetup-plot2" X1 p3 b8 p2 c6 R& B, U/ S2 H
& N7 G$ B( F8 g
setup-plot3, U6 Y- y* r+ w5 G$ v$ W
end
: a& S% U9 O9 U6 O; j# z" @: J/ a1 D. Q: {' K
;;run time procedures
7 Q% c) t- `% V: a# h/ g) @8 ?3 l2 e; c7 c8 ^; M3 ^. N1 t3 N& [
to go9 ?3 Q+ t$ r& Y8 J$ A0 q
. y. ?" G( [& Q) fask turtles [do-business]
+ o9 g2 V. b. [( H6 `$ L. [end' h; @. S" x0 e+ [9 h
. U( \! G9 {7 H8 E
to do-business 9 b: r. V; b" e, r" K4 S+ k3 f; a
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5 f. a: \6 c- W- L0 g) a. k/ E
rt random 360
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fd 1
/ a J5 d3 U& S/ `+ ~+ u; b& s, y8 M9 ~9 j) D
ifelse(other turtles-here != nobody)[% ]6 P5 p( D% B. o
, y w" {; a$ D0 n# }9 F/ |set customer one-of other turtles-here
$ H ~/ U6 v+ _- D9 K, ^/ W
# O0 N4 h2 i4 `8 w5 r;; set [customer] of customer myself
+ Y9 e/ j8 D2 z3 y4 w8 W5 l4 _6 H. b1 H
set [trade-record-one] of self item (([who] of customer) - 1)
; ?# _6 i3 c. e1 u[trade-record-all]of self
' ^/ k' w% n, L;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, G3 L8 Z& x' O) g- Q# W+ H6 k) B
! j1 V3 l) @* D5 |) m- k8 j# aset [trade-record-one] of customer item (([who] of self) - 1)
. i* r8 K; q' _7 _3 }6 u; U2 f: H) g2 h; n[trade-record-all]of customer' |* ~* [& ]4 J
& T4 r" A8 F8 p" b
set [trade-record-one-len] of self length [trade-record-one] of self. n9 C N8 u" T. f
' Y& U0 |3 O% W9 a' t* r# Mset trade-record-current( list (timer) (random money-upper-limit))$ V' ?/ O; m# Y! C
7 q. Y0 u: v) L8 P$ p& Z: K3 F. p4 Z
ask self [do-trust]" s/ g4 l& @ z; C' u- ?
;;先求i对j的信任度4 P2 o( q: |3 r( ^
0 k6 f2 M$ D% k2 f4 Xif ([trust-ok] of self)
+ P( s) F/ w3 y" k;;根据i对j的信任度来决定是否与j进行交易[
t) j+ N+ T% d3 S+ M1 Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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; L, Z* f g3 m, u7 [: t[2 Q9 f' B- `& H- U" c
' z5 a+ X/ k, V4 v6 H0 a mdo-trade4 L6 j. O* H5 J5 u) Q. l( w7 O
6 x9 {" N4 w( q" p- bupdate-credibility-ijl
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. b1 H2 M$ m/ v4 b# {/ V# D& Gupdate-credibility-list
* j A! o/ T/ K8 x$ y7 W; d- F
6 `7 i+ d7 M& I6 r
) \; J& e( b* _. L, g' T4 rupdate-global-reputation-list" s" c) }6 V e* n; e
( R+ ^4 V9 P4 g' o0 x4 v
poll-class" w0 B8 _& k% K3 m- x! D
% x5 s' w8 \! u" O6 I6 i$ a
get-color
0 c d( E$ Y% g/ Z) c$ B* ?! D8 ~' o2 T% x1 D% y2 [
]]# k& `. y( }5 R# p, |+ v; E
3 `9 [: } ?4 f; ]* M. };;如果所得的信任度满足条件,则进行交易7 y! p x* L( C b6 `) Q, M
# C# p, K" ~& F! g
[
1 V7 o' P& e5 @" b, l+ n. v3 k
2 E2 m: ?: {, A% N }0 i3 B, K4 Z- Qrt random 360, k; u* w$ ]. P* \( e
) I& R2 z+ }& u- H6 S
fd 1. M; ]. p! x/ b9 K
8 s8 Q$ r6 E2 R" l# h% ?% V, h
]$ Z" ~3 g U2 c2 H
# L" W5 v0 W8 t6 A5 ?& mend
7 A k z7 ~; l5 D8 \: G" i$ J- M. G) |4 m; ^1 A' `
to do-trust ) p" D. d" x2 s* e" G! l6 n
set trust-ok False# E t k! }: K7 m8 P
2 Y' P$ x" [' N" ]; R; L; {# u7 O1 |: |$ z4 _1 Z7 b
let max-trade-times 0
+ l7 r. k5 F+ qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ h2 a, K) s2 Q1 X9 p* Alet max-trade-money 0
% N+ a3 H. z; P" p2 n2 z5 Bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 m, X- j( ]2 F( Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 W% _9 s, G1 ~" y0 `* O2 ]* D2 H! ~$ {! \
) r8 T. j3 E& @: Z5 cget-global-proportion" b. c: L) o$ w& R7 ]" F- N
let trust-value
+ C+ }' P# `: w! @1 c( z9 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)! H- w2 G% K ~ ?% J8 p# B2 d
if(trust-value > trade-trust-value)& D1 t0 }7 P F% G' _7 C x
[set trust-ok true]
8 H& d, H9 \2 h: Bend5 M( O) q# B; ^$ q, c
7 p: @& V5 c& ?: }: p9 P9 \to get-global-proportion
) d7 I8 z# X$ ^! ?( d; \( u- _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ @2 x5 J: U. ]/ M6 X) ?
[set global-proportion 0]3 @$ \/ ^& S9 \/ v5 ^
[let i 0+ V1 G" o/ Z( J! [8 I# ~
let sum-money 01 t, d, O; i5 g. I# U4 W
while[ i < people]& O( w, k1 P: i4 Y% d5 a4 ~ G5 r
[: s5 G( ]& R& Z# y2 b/ a
if( length (item i
- @0 P9 h7 Q! g[trade-record-all] of customer) > 3 )6 H* T- ~3 a- O5 u- l) J
[/ P/ m: k# G# B) B/ \
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 C4 p/ U* ]( r' F8 G+ I2 _7 n]
~1 C% e5 l1 t5 T- Y# g# l]
/ S# u2 q- z$ I& rlet j 0
% ?. f0 o- @0 G5 Olet note 06 x+ |$ ~9 Y" R# M2 V2 O
while[ j < people]
Z0 I/ {# L+ h! Q; F[
0 x) b) i% h2 |, o$ Z: a bif( length (item i) p% C, Y6 W& p/ \
[trade-record-all] of customer) > 3 )* ^: p: I4 U: Z
[
/ a9 j, u7 x5 c& b& vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# l5 \" G6 S, n; I: Z3 k
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) m6 ?2 r/ h$ S7 z: F* [
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] x8 T0 q2 I; }
]/ ~3 A8 x- [( O' `8 F% z6 i
]
- \& A9 b, O! F* G7 f) \( ]set global-proportion note. D& F" f. m( G8 l8 U) O/ M; D
]2 f: [+ e" t4 l A9 B' z# F6 u8 _* |
end x1 t A9 N! Z; ~0 e: e8 R
' ~9 T/ j$ a$ v8 q1 k& o, ~& ?! o; ?to do-trade+ X" x6 a& `3 p. W3 A: l; \' I& h
;;这个过程实际上是给双方作出评价的过程6 A. m5 x3 w& T+ X" j& M ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# B% N5 I4 C; o% b% K! ]/ dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" q( u' I# {4 }1 b* Z* E. X
set trade-record-current lput(timer) trade-record-current
4 d* m9 ]% [* [# F# H;;评价时间' |2 o. Z0 ]" \% `% J9 K( q8 E
ask myself [
* Y- p& ~( H5 e! c" V Y( Supdate-local-reputation
( T! H9 ]8 C* I+ V+ cset trade-record-current lput([local-reputation] of myself) trade-record-current
- A' f' h; }, i) h4 G! N]8 }0 c) `6 G4 p* `- R' Y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 A& M0 ~' F: v" ]& ]* l" \
;;将此次交易的记录加入到trade-record-one中
$ }+ u8 z, H. N' K) i2 ?2 i; J# S- xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 ~0 f6 Z8 s9 f( A' R2 ^. Wlet note (item 2 trade-record-current )8 M. N4 W* D, x2 I0 n$ m
set trade-record-current9 U9 [& f' y }2 e% o5 V
(replace-item 2 trade-record-current (item 3 trade-record-current))
! I9 V5 G# y$ g$ i- @8 ~) {set trade-record-current
0 c/ D$ _$ E. O W6 S/ I' \(replace-item 3 trade-record-current note)9 K8 }2 U8 R; R2 c' w3 k4 }! M( q
, S. x+ B3 N# X4 _; o( N
: w4 e- ?* Y/ l3 X- h
ask customer [5 g9 C# a7 b2 R6 d/ U' u+ ^
update-local-reputation9 Q1 ] V. H7 Q, S5 ]
set trade-record-current
5 O) x0 C" G1 Q( j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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l( \6 w% T' D; K- M5 ~* ?/ z& N! S' `9 j) }% B
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer# o9 b( t, }+ o! z
. t1 g; a9 K4 ]- K+ V. w7 oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): D; L1 t4 \3 z
;;将此次交易的记录加入到customer的trade-record-all中& T4 J: E/ s0 b
end
- S/ _0 c4 c; c
1 Y4 E) g D% t% ^# }2 nto update-local-reputation
7 g$ B4 w# @- Q' o' A1 ]set [trade-record-one-len] of myself length [trade-record-one] of myself
1 t2 l+ z7 M$ I' v7 d j& [" V
% }3 K3 m- H# V- C, I# h6 l
;;if [trade-record-one-len] of myself > 3
) ]* A) U- Y7 S" n! f W6 }3 u* Bupdate-neighbor-total A* _( H4 q0 w7 D
;;更新邻居节点的数目,在此进行4 A Q" m; n1 n
let i 3
, _. Y& s! |* g1 C U8 E2 }let sum-time 0! `" k0 W& o* t7 d5 Z! W
while[i < [trade-record-one-len] of myself]+ t; N: l6 d# u" E1 R1 d5 v& I1 e- A
[
) B( o# z0 j$ I h5 l: gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( q8 r B2 ]1 a L; \0 v
set i
$ a. b. h! O& g# o( i + 1)3 z; n( K; ?6 U2 @/ e+ J# s
]
- S4 o \& ^5 v7 plet j 3
/ k3 \: S6 o$ `7 J1 g* o: g# olet sum-money 0/ ]. ?" [- Y4 k" y5 x
while[j < [trade-record-one-len] of myself]
1 T/ J6 v2 m. ?. T' o3 t[* J( ]% b+ f& g9 T
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' I2 T; r- V2 {- }! u5 Y
set j1 A9 g% n$ F" H$ ?) v) ~2 s! x
( j + 1)3 o: U, z& M3 I
]% V/ q% l# \" S- E9 g/ G! ~
let k 3
8 o6 T0 O6 E( X! z! p5 x- `let power 0
2 \, V+ V" H! g! X) Llet local 0/ W, |: b2 g. V
while [k <[trade-record-one-len] of myself] x3 f7 H$ A9 W: i1 q5 }9 v+ [3 r
[
! _3 ?0 a* r: a( ~/ Eset 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) - }' C3 c8 o& S& p; D
set k (k + 1)+ w; I# {# R8 [3 s- \! m% j6 U
]3 l% Q# E0 o5 D+ l) w& d/ u- f3 N
set [local-reputation] of myself (local)1 T- e' A/ t7 p, i+ s
end7 X( O ~' q2 X& E4 |# F
- \9 b ~" V3 j. ato update-neighbor-total
( N3 v1 t; r/ D+ ~ r
! T+ G! ]& o* n3 r' U" }& ~$ A# iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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* m" {/ U1 _/ k9 }% i% I
end
, @: q+ y4 d5 [
* V/ V- E$ a# @to update-credibility-ijl
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& t; L4 h D. L' I9 A0 ]4 V( I;;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。
: O6 {7 K+ u) O7 Ylet l 0
2 B! k- x1 g( T/ a1 P6 awhile[ l < people ]0 D5 ~1 U' R/ _9 p3 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
4 S2 G, r: W2 h3 T. h[
/ k6 u- b& S. ]' I8 tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)# c% q% C# S, @ x+ R; U
if (trade-record-one-j-l-len > 3)$ A; R4 ^7 Q: O- B1 N% @# r
[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-one4 ?/ t! L2 _; `% s4 K5 d
let i 3
, @" V9 E0 {, Q: f# `1 N4 l% Slet sum-time 0
( F8 @% t3 `! Z. z# D9 q& dwhile[i < trade-record-one-len]+ c4 J' Q* j8 ^
[) X1 K) A# m+ n& d4 Q' B X
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! |4 w" M8 c( ]8 c6 G
set i+ N; T$ y" Z9 s$ }
( i + 1)
9 M1 _6 N4 I* l7 @3 B; O; I]- T4 S1 H7 N% Q G
let credibility-i-j-l 0
3 v* o% F* b% f/ q; G, Z;;i评价(j对jl的评价). }' L6 V" K9 t- J7 c! X$ v
let j 3' K1 Y8 }: X9 {3 \; d8 n
let k 4/ [5 F6 w( H) ~& P4 |" w% p" }
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
$ h3 E1 H$ A/ d. @5 ?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)
! v: w; L# ]3 ~, nset j
3 t) \4 Q% c8 w+ g' h( j + 1)
& ]6 N4 U) o$ K2 J) }! n+ y]% @2 P) H- h1 I B* r
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 ))
( v4 v8 L8 ]( [6 e
6 I. l1 h; l. [5 {# X: S8 \* ?
( j. W0 Z1 B( W7 m+ Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 A/ ^' v7 K' H, W! {9 y: c" Z;;及时更新i对l的评价质量的评价
6 j9 @/ D5 z" L, Q3 T0 Q- }4 R" Gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# t1 r9 k, R7 l7 tset l (l + 1)
) `' A/ \7 [$ W], x4 p) G1 P1 I6 T( B6 o, I# C$ s
end7 L7 y$ M9 b+ \
6 u- C. w0 q0 Pto update-credibility-list4 N' y% s- `8 _3 O8 D$ U
let i 00 q0 d$ |( b& A1 R: Z" d
while[i < people]6 O z& b' g8 s
[9 w/ \" i$ K5 N& m! f% q7 v
let j 0
% \% h, p8 O4 N% i9 x llet note 0
; v& O+ `( ~* ]6 f$ {/ |0 jlet k 0* j% o4 Q" f. d- C& `$ v+ m
;;计作出过评价的邻居节点的数目& {1 d+ Y" j2 i z- D1 ]- _3 B
while[j < people]* r, {- i$ r9 W9 P
[
, X* ]* p/ w& h) tif (item j( [credibility] of turtle (i + 1)) != -1)9 M* w+ R) a8 m$ C! h
;;判断是否给本turtle的评价质量做出过评价的节点
0 e- E2 }: D+ \, a9 p7 I[set note (note + item j ([credibility]of turtle (i + 1)))
) P8 j+ Y8 y+ V;;*(exp (-(people - 2)))/(people - 2))]
7 w3 V* f. w! A+ x0 x, ~set k (k + 1)
& T1 N& T6 U# g0 o% x$ J2 P' @- A4 L; u]
& p. k6 m G0 D( y3 M# f! t% k2 I+ bset j (j + 1)0 c* d, y y# M; @
]
! y' P' v7 c4 F. N3 _# h- l# gset note (note *(exp (- (1 / k)))/ k)
' O$ \/ a7 W$ Q8 w& h' Qset credibility-list (replace-item i credibility-list note)( S1 x8 @# ^" a; `
set i (i + 1)
4 x6 r4 _0 S6 F/ b]9 v$ ]' f1 S! H1 g. e* ]
end' G% B6 ?' A' d# K. D
; ~( d n# Y( O6 C3 c I
to update-global-reputation-list
# t) u( ?, R" A) y7 l8 L W' Wlet j 0
& Z$ Z7 r( o( F; twhile[j < people]; M8 a. b( W: h5 a
[
N- w+ n3 c; k$ o8 ~let new 0
7 d, l% O) n) I0 M2 E8 n;;暂存新的一个全局声誉$ t. j; a% @$ J
let i 0$ s$ ]; x# L) h
let sum-money 0+ N6 N) |4 S$ T2 s6 u& F
let credibility-money 0! m1 g9 b) x7 E# j. H6 f; ]8 | A
while [i < people]( v- e' l* }' A
[
1 ?' O( y1 F/ C3 p+ wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" G3 ]0 x0 K, I2 U. uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 _! W& A; |6 n, x/ Eset i (i + 1)+ ~) u& E) B8 C6 V, k( ?4 s0 ^
]/ {% G' M, j0 D7 r8 e
let k 0
1 T5 t# G5 e7 S1 u6 clet new1 0+ p& |# u8 g9 {9 t5 G6 a, o2 j+ X2 B
while [k < people]
/ J3 A0 u* q% m. I/ E8 m1 ~[* C+ ~+ l; Q2 S% d" D/ J9 j' V
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): M; ?! A% A5 D# F9 r
set k (k + 1)2 Q; Q+ m! j6 x9 X
]
; |. u' m0 ]! k9 k: |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 ^/ Q) X& R: u
set global-reputation-list (replace-item j global-reputation-list new)
9 t2 |& R7 b) X0 Aset j (j + 1). p5 I- N3 t+ j: n
]- x. G8 F4 g" p- X" \1 O
end
1 `7 s* E& {' _6 {
# O, B, T$ Z. Q9 h
- t( @6 N# R; L+ f6 f
* r# D+ \( v t) G; G" z& wto get-color
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set color blue, t- B0 z5 ]/ M' T
end! v0 O& C: |2 g# n& J$ z3 N
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to poll-class0 J: L5 L {+ m! v) L5 [$ A: c
end6 X5 Y7 f8 F6 Y
7 D8 Q" `- S6 F* k- Y6 eto setup-plot1
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% v& v* e; D7 O0 B/ Dset-current-plot "Trends-of-Local-reputation"
0 @7 v2 n, f4 d8 u: N. L( \0 g
1 J6 h* l9 y" _' @# q& lset-plot-x-range 0 xmax
4 D% g# e3 \% v/ }
1 M1 y2 S. T5 c* c; e# Jset-plot-y-range 0.0 ymax+ @/ W9 R$ k! N& \: O- P" Y: t
end) A* c: u. c3 C) I
- Y9 {( f* Y0 F3 c* ?, O6 Jto setup-plot2
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set-current-plot "Trends-of-global-reputation"
Y6 ^% c2 G, J0 t1 ]' y" ?1 u
( D( y+ E* y% k" A* Rset-plot-x-range 0 xmax2 {( b0 e. g3 A' p$ k5 M8 D
6 m a4 @0 u& A) X9 R/ Sset-plot-y-range 0.0 ymax, y: E) H+ }) Y
end6 P3 k6 @0 A; u0 c; d; k/ j5 J
+ U ]3 G2 [; nto setup-plot3( Y# L# t9 G" z7 S
1 E8 S2 {2 D2 r% ]) M( I( N: o
set-current-plot "Trends-of-credibility"
& V/ Y2 x _ r( h) X5 j2 t. w8 J% P; F/ ?' f
set-plot-x-range 0 xmax& _$ _& m! e7 R% K' k3 ?3 G$ {: C# @
& ~2 U# u" Y9 @set-plot-y-range 0.0 ymax) x( f+ F3 I8 U5 \/ W9 X: Y
end
& u, J9 E/ i# i/ T, s; [
0 c4 C5 b" s, @6 Sto do-plots$ R6 |' a9 t/ ~: Q
set-current-plot "Trends-of-Local-reputation"/ g7 l5 n+ n6 U5 E& [- q. P+ g
set-current-plot-pen "Honest service"
# }9 c! c( e8 F6 E+ eend3 @7 R9 O+ E) L4 a' z+ |
2 u# \% q* x6 |, T3 k3 j; {8 x2 r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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