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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
3 N9 B. n9 B: y* `8 R/ {# _: L1 O9 a6 Yglobals[& C' Q6 E% ?% \/ v R6 _
xmax) G8 Y" F. v: E# I9 S
ymax; U+ P+ n B5 F; b
global-reputation-list
2 r/ O8 Q+ C9 o: w0 m6 I# C+ }. A) Y7 e: R
;;每一个turtle的全局声誉都存在此LIST中
' x: L* P) Q5 B/ Y4 D9 u Ecredibility-list# {& Z) M* _$ [4 W% [& }* x
;;每一个turtle的评价可信度1 M S2 N# _, L( N' K
honest-service
; @- d% b1 l. @% W; z- _2 ]unhonest-service, j* z) I9 J3 i
oscillation$ g1 D3 U( J$ N6 |* D' j
rand-dynamic
* f ?, y( Y8 k4 u0 D]
6 {/ ?; Z$ S- \+ |! s5 I5 j
0 p, q* g1 R; K' Y( t' |turtles-own[
& I; D6 p0 ]5 v( G# ^4 jtrade-record-all
$ |. H8 k7 F$ |! E; D* h7 D) |;;a list of lists,由trade-record-one组成3 S p: G" f( E; A, t! e
trade-record-one9 B% [2 d' A; E
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
2 q2 Z* d! k! Q3 P8 @' C4 J" ~3 Z
( Y& o4 m- o% V& `- O \;;[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]]
4 f7 n* N/ l* e* N8 d+ z Ztrade-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]
8 S$ e1 v: H. e$ P! s* P5 a* ycredibility-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
7 i5 `8 I2 I9 y" Z8 J. Gneighbor-total
$ m) `7 ]7 Z3 a( B3 d3 Y2 d/ w;;记录该turtle的邻居节点的数目
' a- Z, C) N0 z& ftrade-time
% f4 Y% b) Q4 G! D# p. U;;当前发生交易的turtle的交易时间' v' x) v) y2 p% ]: W3 }
appraise-give$ y; z* k% a1 l j, Y* ]
;;当前发生交易时给出的评价# r* i; _, Y! `# X$ m G
appraise-receive6 h* K+ y/ w0 r( @/ E
;;当前发生交易时收到的评价# [4 [) P' U% H1 d
appraise-time
: C+ Y X& M) @1 g;;当前发生交易时的评价时间) M) a! L/ s8 f! a
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 G) z3 F2 p7 O; O! a' p3 ^( d3 d
trade-times-total$ v2 n/ @1 R7 r$ J
;;与当前turtle的交易总次数
4 ^+ D; ^1 Z) B# q8 O _trade-money-total
+ I- l# r. P# @ w% }% Z G* \;;与当前turtle的交易总金额
( T# j9 P5 ^. {' K0 m$ M1 dlocal-reputation
6 a" j# ?# l9 K( ]% r) c; n1 pglobal-reputation
! f# o' |! J8 F5 h9 w8 `credibility' G, Z: `; o# Y$ I" M
;;评价可信度,每次交易后都需要更新# a* A5 F, D* C( S5 B
credibility-all
% X- D* H- |6 h( Q) K;;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
& l x' @/ F( `+ v+ P. i+ {6 K1 ?2 y, p2 j; l |
;;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
0 p& y {2 g. T- Wcredibility-one% o+ D) q8 G% w- m
;;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
0 T2 K: P4 g; \( ?$ H2 }1 Eglobal-proportion
6 a9 E: Y5 p P. S0 { t, ccustomer9 Y7 _0 v- ~# l+ H/ G+ I1 R. ?
customer-no
- k7 J8 X1 U1 b. t1 W& J; ftrust-ok
& H/ h+ M% T! ~1 g! }trade-record-one-len;;trade-record-one的长度2 B. J& C& u6 i& K# i
]& k2 `: k3 o5 C4 s6 Z- V2 I( N
/ ]( f( r6 X8 Z: F4 M4 `: T4 V;;setup procedure
; a- d2 v1 s) x' W0 c( k9 H( S
2 Z+ }% {( w9 I: Xto setup
a2 `( D: _5 d6 M
1 p! H+ a5 z6 Zca
" c6 s; ^# }0 e/ [# Y" ^
7 b; K1 X$ Q: z0 Tinitialize-settings
2 {- a) K) j% f
8 i' k% X+ R8 ]' W( K! bcrt people [setup-turtles]
2 Z3 p' T+ G$ |! K F
1 f. h6 h" s& N/ }reset-timer2 i/ N( i# Y3 h' i# E5 L+ `
& i. o1 e- E7 {8 O; p" k3 `poll-class
: i. ]- _' N) G' J, ^! |
J! x" I4 Q, n& ?) x) l+ [6 Y/ Dsetup-plots! ~6 h2 [. }) Q' V" R Z
" w/ x! B1 E# W2 w0 Jdo-plots
- N6 M9 j) U( C& gend
* x6 }" F) P2 f) w5 q8 G; T/ x. W3 p# W+ W
to initialize-settings$ J E, m9 d$ j' U
# u' b3 u! D- c
set global-reputation-list []
7 \. y3 A" L& N3 w$ h
2 m/ [; j3 K! }% m: f- ^7 Gset credibility-list n-values people [0.5]
+ M1 j* r" d: g6 \
) m% t1 F& K' N3 W$ `# b7 zset honest-service 0
$ }" E! V5 I% c% d/ h9 H
; @( C5 Z5 Q4 ~set unhonest-service 0. b: Q# v, y0 v4 j+ o. z
* G& h2 N3 B+ k0 w. n$ X
set oscillation 0
/ H3 F d a& Y4 r5 ?3 P0 ] C$ V1 j+ x" k/ T3 R
set rand-dynamic 0
4 f9 u+ G0 x: I) B( \# Kend
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to setup-turtles 5 `) E2 y1 D+ w# O
set shape "person"
) M8 o3 F7 i- H2 I: ~" p+ t3 }setxy random-xcor random-ycor
. T3 M7 v, Q& T% i& Jset trade-record-one []; Y0 b1 `: f' K% P( C+ N8 C5 Y' Y% M3 @
) f- j* G3 O# K! i, M$ _
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []' l) U! Q ]( f! ^) i1 \( E
set credibility-receive []
2 A0 b" J# j2 g! L' r+ [' jset local-reputation 0.5
' f+ W3 N; K) S+ v5 j1 \set neighbor-total 0
" u D O* R1 N1 A; _9 ?4 F6 s( R6 ?set trade-times-total 05 Z' n: { Z0 }( y" l
set trade-money-total 0. [4 k- Y+ B, o# m2 I7 M
set customer nobody
( w h6 l) i5 ]' p/ Y* Y1 gset credibility-all n-values people [creat-credibility]% R4 H7 b# G1 a3 T+ l" q
set credibility n-values people [-1]1 h# [+ J) M0 B: o+ C
get-color
# q6 X4 V% n9 Y; x3 ~9 j9 ?
) V+ \) G3 S4 `% Z! ]* |7 fend
3 @' W0 \- N$ K- ?9 A
. _+ j& g' p5 zto-report creat-credibility
% p1 G& n2 n8 G B: U/ Areport n-values people [0.5]
$ c" g: {# T4 o! O/ G7 Yend
- B3 C6 B* @6 v. B, l( i) I6 s
( I) o2 \% |6 V/ }! ~% L4 Cto setup-plots
) Z7 s+ Z: s* E) u- n/ B
) N, e+ i" w0 s9 K) Zset xmax 30
b0 b% S5 @$ j% e7 k; u: v
3 ?9 G8 k8 O+ {set ymax 1.0- E' P% B, P$ f1 s! A ?* _
6 ^3 [ n7 a- f1 |9 n/ R
clear-all-plots
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setup-plot1+ C* K8 t* f3 H& b
5 F4 d( E5 F* u- R3 Tsetup-plot2
. ^6 E. u. d* D7 z
4 C0 W9 {2 M" Csetup-plot3, G3 c5 |6 r$ W* ~; M1 t" o5 i
end
4 {+ V1 {% S- e% A
0 l6 S- M$ K1 j" E;;run time procedures
e! t9 o, z! o. E
8 ~" f9 P7 `) b3 Tto go
) @) k- I& j/ ]& |+ f
# K+ g4 }% ?2 `8 C9 g1 Wask turtles [do-business]- H2 }7 _+ Y7 `
end9 g8 z1 e9 S; v n; G
: f4 Q+ `4 W$ s/ z$ @: b" v- L- ^( X
to do-business
& Y. G4 \5 z% V z3 D8 }
- |/ p( V T3 g! m0 D) n5 g% A8 G
rt random 360
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fd 1- Y9 E" i O E; G# D) P8 ?
( Z9 d: L" ?- O( J2 G8 wifelse(other turtles-here != nobody)[% k4 u0 U) b8 q o, e
# e: C- A" g) P0 I8 w7 q) _+ eset customer one-of other turtles-here
' [! Q7 G3 }" Z& Z
. A+ h0 u5 }& g/ X7 {8 A2 q4 U;; set [customer] of customer myself% E& f' i$ S5 O5 e) |% [- T
" s' \$ q; j) T
set [trade-record-one] of self item (([who] of customer) - 1)" f; R D; L* R8 N2 D
[trade-record-all]of self( h: e7 G& X7 G. b1 s# C
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; D$ d& F5 S9 b6 O7 }
3 ~& c% z3 G/ N8 x' b$ Yset [trade-record-one] of customer item (([who] of self) - 1)/ @* g, r0 {* t& y. C8 _ E4 A
[trade-record-all]of customer C6 i- K; j3 H! ?9 {% @$ v
4 f$ g+ j, [( a) x
set [trade-record-one-len] of self length [trade-record-one] of self% D) {. k8 @* N2 E" G. Z+ n
" o- z: K& A* I9 a4 t4 \( u" K; ] u6 z
set trade-record-current( list (timer) (random money-upper-limit))
! T K2 D2 T9 q; l& D$ x1 _. I- y% E' ~8 J/ c) ^, }
ask self [do-trust]
0 C8 w b4 M3 K$ t9 v3 O;;先求i对j的信任度, E+ p3 l& ]2 e7 [/ h! {
+ t* h6 H; ]' U7 P6 Jif ([trust-ok] of self)
' k6 W2 N$ V4 M5 c' h! }$ `% w;;根据i对j的信任度来决定是否与j进行交易[9 g5 E0 O/ ]- s9 I
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[3 _ F% {; `0 A2 G( j) E9 _2 m
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do-trade) F O/ S, [" {
, ]$ R2 y0 ~1 O7 [6 Q& gupdate-credibility-ijl4 H1 F9 n, H2 ]1 N N& {( @
: l2 @2 V7 Y7 |! z
update-credibility-list2 Q, E7 i7 y) O+ z9 b
! D6 J8 A3 R" @+ s% }- ^0 i7 T* Q/ @
update-global-reputation-list
, `$ G9 t* x. j1 u, J5 C% J
: y5 b. S2 t1 apoll-class
6 c0 ?, o- n$ e) u5 Q3 h. a0 L% N* A: c: W: [; Z9 Y
get-color; M) v- T6 c9 G; J m% {6 T
6 F$ e& }* H, X# {]]4 b$ l. L4 R: ~; M$ l
3 A6 j; n N- {- C7 z: l( k* q
;;如果所得的信任度满足条件,则进行交易: M- G# r: z0 v
! {3 `: Q5 l' D, d7 u7 n8 D
[ o7 m7 n* e2 S( w3 T q
/ C, `& @4 a3 D7 S6 w* L$ v
rt random 360* l! I1 T. C% G3 r" q
0 Z4 c( K7 h' }: C, G! o, |% U3 ofd 1
8 d$ N+ W {# D. v) Z% Y5 S0 a' [% {* ?. Y+ v2 D
]
; j; y$ Z( ]7 }: q( y
# X, H- W. D S) W" Q* H) nend# n7 h- ?; F" F8 d2 m! Z
2 n4 S- h2 k. k3 K d Vto do-trust
' k, s% z1 S R) T! E1 @set trust-ok False* S4 d0 x) Y$ m0 p: v
# u4 T9 V. \# N% Q& v" H
1 ^0 x: D! }( [: |0 ylet max-trade-times 09 r+ D$ M0 b3 b7 e" }: U
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# p H/ X+ {7 b! o! q; ^2 r
let max-trade-money 0: s( B5 r3 E# s) c8 `! R7 F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: o5 P! f" C5 Dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 @7 [& M* ?+ J8 w: E- ]5 y; W! J; D4 }: v
/ ~. q2 S' a1 e+ K$ j& I7 s; W
get-global-proportion
0 z2 y, @) S" b1 B% _/ y$ }0 klet trust-value, C N- A. V& Q; q8 m! B% U
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)
4 T/ l9 W) [, z7 zif(trust-value > trade-trust-value)5 Y7 V+ J0 ]7 Y# X8 N3 Z/ B; u$ C3 c7 L
[set trust-ok true]9 d' W" g9 \$ c4 @- X( y
end; W$ g u( ~7 r8 }# z! Z' k
: E, J1 H0 v3 Gto get-global-proportion
1 z b* Y, m4 J7 j; Gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)1 s+ E. ^9 }$ W) w/ A" V7 p
[set global-proportion 0]) k$ u7 q: m# j2 E. @
[let i 05 |! o1 Q5 R5 {5 y4 W5 W
let sum-money 0! g7 G+ i! w/ m" ^
while[ i < people]
4 u$ p. e4 p/ [2 Q1 o9 r[
' Z, ~9 s9 F' u# N; ?if( length (item i/ f! A. X; o8 M. R
[trade-record-all] of customer) > 3 )! d1 t0 B/ N3 _
[
0 T( Q& ?2 t: X8 v. Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ b, [$ C9 w8 p- J
]
& e1 ]* B' f6 T8 r, b]
; h# h! }$ L2 g9 y2 x" F6 y k, Dlet j 0
. Y6 D4 s$ A6 \3 |1 Ulet note 0& J6 o# v2 B3 O
while[ j < people]# ~2 m5 I7 h- U) Z- m. g
[0 y$ c" h" o; R- ~9 t5 _1 S
if( length (item i
; U7 @) w( F* k N4 s# v; d0 @[trade-record-all] of customer) > 3 )
4 e; m/ n, c7 Y" n( i' ^4 B[" t s- ~" i0 S2 A; i7 l
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" D; Q. k3 x; J$ L7 h# v
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- p1 s- B! O8 M E2 Z3 k' G
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 x$ ?" u, g# M
]
' w/ s. `$ m9 B2 t3 S2 Z3 S]
2 x) s" a. u( p4 yset global-proportion note5 `/ ]1 N; n6 ]) t0 `" e L
]& I: n. O/ }+ l2 j. s
end6 s+ ]9 @* F0 P
( ^" ~8 d/ I7 @: H& `+ y! qto do-trade. z9 a9 ^% u U; |+ X) f7 T
;;这个过程实际上是给双方作出评价的过程( @% X# p8 v# Y5 m1 z8 J1 |( V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 z ^! ]" \6 t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 h( {& o' T" h* l0 p7 O- zset trade-record-current lput(timer) trade-record-current& k Y3 n0 b+ o- W
;;评价时间
" E7 v5 y- `4 j9 j$ f. b$ i( Xask myself [: \2 J! x& n" N4 Q n& Z
update-local-reputation8 ^; } V, a; {& m! C3 G, q
set trade-record-current lput([local-reputation] of myself) trade-record-current
+ D6 l& l) c' D; X* m0 h/ q2 h]. R# Q2 g; V. J; c7 V+ f& j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, F' x7 Y9 l4 i# ^% q* Q, U;;将此次交易的记录加入到trade-record-one中
7 H; p( V' W+ r# E4 dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 {! |, C- `; F1 K" \' Z9 V
let note (item 2 trade-record-current )* ~$ l+ \8 t; H# W u ^
set trade-record-current/ J$ O8 x% O6 p/ N3 ~+ e4 L7 V% C
(replace-item 2 trade-record-current (item 3 trade-record-current))
# W' f* C+ Q, b) l p# B/ x' f( F6 Zset trade-record-current
* F' x4 a4 |8 e7 X) X _% A(replace-item 3 trade-record-current note), Q, i- `# `9 Q2 U, S$ y
# c. | {9 a/ ^" ~" o, j# n% I6 B! h. H
ask customer [6 I& y' C3 T1 J5 W! J* z# y' {
update-local-reputation7 U& s3 b1 W- c8 a9 L
set trade-record-current1 B6 q9 [! W3 U. r# U6 g* t
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 C ~/ N5 F; N- b' P; |]
% ~% B% Q8 \- a% }" ]& t# l
$ H$ O- g% X. T! O, p8 q# A! }- k) ], E
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 {" F1 f* s+ \
9 A, v' X, i5 |
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( w5 i2 F, R) s; k- i4 _;;将此次交易的记录加入到customer的trade-record-all中
1 S+ R' Y% Y5 Vend
1 K* z8 n7 f: W& O( a4 v; y \# ^
to update-local-reputation
e4 W1 I! H0 r+ P$ a' ~3 lset [trade-record-one-len] of myself length [trade-record-one] of myself5 G& S' p. c, |/ }# P# O/ s
4 x: n& V) a5 P5 P h9 c" s2 c( Q- v, Q3 p* t/ S, @
;;if [trade-record-one-len] of myself > 3 9 l6 x7 Y1 @1 @3 F
update-neighbor-total
9 V2 L! D( U9 B) s1 g;;更新邻居节点的数目,在此进行+ C; w l `9 ?' x$ z* i
let i 3
# M$ C# _7 F$ O" vlet sum-time 0
6 g2 W6 A/ m+ m# B' Q) v/ Q$ zwhile[i < [trade-record-one-len] of myself]3 P- z7 P; [+ u; O: C
[
2 ^, C5 \. c; uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) E# l9 ~/ S1 T# w- _" q) E) v
set i
& j4 c% O- A1 V9 H. L+ L( i + 1)
" d% S" B2 Z; M6 \]
1 m8 @0 x& ~: X. g: ~$ }let j 3; H. z. ^) \3 U# Q2 \
let sum-money 0( b3 k, z% K; r% q, `+ X0 ~
while[j < [trade-record-one-len] of myself]
+ x1 ^: z, @% L; j8 b[
( p7 o/ o5 w2 x! uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& y4 j4 g# P% L3 e( E0 _% ]set j; E' [" Y# e. z _! E5 X/ I, w
( j + 1)3 |( p$ o) A/ u t" K9 _7 v+ j1 d/ x
]
. U7 R) _+ D7 p Ilet k 3, o% M: y/ J- ?/ z6 e) D1 j" c, d
let power 0+ ]& |) U; X9 a; O6 W7 ^9 F0 f! P
let local 0
$ `0 J" G: Z- z* K; nwhile [k <[trade-record-one-len] of myself]" r4 s1 O# q3 n: r/ ^: b
[0 i3 J/ [" }2 j, Y- L
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) - m5 G. f$ j* T5 d9 q
set k (k + 1)
; k4 e0 N& Z' f' t+ m Q s]
! \; `/ T2 K/ I( ?set [local-reputation] of myself (local)
* U1 ~7 s3 q2 g/ H- P7 hend
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! ^; j8 R4 h l w, ^, oto update-neighbor-total
y4 ]! B9 u9 H9 @+ x! U
" b1 a2 o- l& v- g/ pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& k7 I: ]/ P3 p/ [ t/ H! W5 E7 J4 C2 j0 C7 u* g, b6 b
3 f# l4 f" u$ z6 {0 U7 E! B5 Oend
* V, f1 t4 C: F* i2 P8 P) q; X: t% A ]
to update-credibility-ijl 1 y3 G$ v* B' ?) f4 h
' Q) T4 ?' j( J# x2 m) M* v2 P) x;;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。
/ a) U F& L( o! clet l 0' y8 d' w3 q6 U$ N' o |
while[ l < people ]& ] F6 o& q* d6 t
;;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
7 I/ @5 }6 ~& |5 O2 V! V8 ~& t[ |4 i' x# {0 b. e8 k1 U
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ j: X/ I# d1 J4 a$ qif (trade-record-one-j-l-len > 3)( i0 e" Y2 I) m! b* |
[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% q: R3 C& \8 U8 D5 k' d1 k8 p
let i 3
) s2 t6 B4 f- |- |let sum-time 0( O6 D* ~* O0 @) D5 q' P# O, P
while[i < trade-record-one-len]3 O o/ }+ `* D9 O) Z! h8 e/ m
[
: H3 U1 G. C) f: X. f- [6 o: a$ e/ sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). ` k+ U4 M2 {% o+ X: S0 C0 U
set i8 w4 s8 f. D6 H7 @3 n# E5 o
( i + 1)
+ T( _& o4 I. [2 R( N6 c3 l" ^]
, Q& a; \. y% x9 _/ Rlet credibility-i-j-l 0
2 J( t8 X) q+ P;;i评价(j对jl的评价)
6 E5 D/ x1 m! z' D1 I: Y' M! V3 Ulet j 3* k" _6 U7 V* D
let k 4
' N/ m! t- B6 ^& P' f- n. b5 wwhile[j < trade-record-one-len]
$ } f+ R' s7 ?' k) p/ W+ Z A+ R[
2 [% D" a% v1 x% B5 }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. t' u( l3 q" c( t4 H
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)
% w1 z8 Z L+ [" Lset j7 |* n- G9 p1 s! o, j2 Y4 G3 e {
( j + 1); @9 D8 h& K E$ M6 d7 a$ Q1 ]
]$ F7 X: c% ]$ G
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 ))! s$ D l( h7 p2 b
7 ^+ k [# W/ ]# }: k/ |) w% W& K8 k E5 D+ r- u0 G3 H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. ]. f/ d+ A/ t; b;;及时更新i对l的评价质量的评价
9 }# X9 Z5 u, V7 B2 n Xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" J2 x( o( |+ c. i+ [2 F% yset l (l + 1)
" I% X) n& R! y& x]( T: K m6 R$ P* j$ O% Z
end) z4 F( e; \# ]8 r6 p7 [3 ?' e
3 ?" S2 z1 c$ n6 o
to update-credibility-list
2 f; H, N9 L# _1 I. t2 |- flet i 0
@6 o# r" l$ [2 ]* Wwhile[i < people]
8 Y% z$ U3 g* i; j# }[7 `- Y/ M; u) Z9 q3 v% u: U
let j 07 y% G6 W) m4 L, x( C/ R
let note 0
) d( m6 f. i: dlet k 0
! d7 r% k( ` @8 |0 K, ^;;计作出过评价的邻居节点的数目
* a2 R) s! \6 x' B* z5 v# \while[j < people]! [& B/ d' p2 p+ A% b% K
[
: i; m6 k) ~ ?0 \/ Y5 Cif (item j( [credibility] of turtle (i + 1)) != -1)
$ w" Z8 d7 k1 D% H;;判断是否给本turtle的评价质量做出过评价的节点
! D0 C# @; s$ w! C& F4 h$ A[set note (note + item j ([credibility]of turtle (i + 1)))7 m3 ~8 c! V" D: Q6 k: z
;;*(exp (-(people - 2)))/(people - 2))]
0 A5 Y8 X; H% n2 w E1 r# [- Wset k (k + 1)% z8 |$ `7 b6 `
]
( u6 R$ [' F: D1 {4 g- Gset j (j + 1). W% F& `0 ~9 O7 f# D
]
* ?6 ?1 R9 v1 u, O, jset note (note *(exp (- (1 / k)))/ k)
" k9 { d2 v. o7 ]4 u# gset credibility-list (replace-item i credibility-list note)+ g. h4 h! r9 P
set i (i + 1)7 _2 |4 k D, C! ^4 }
]
+ |3 g3 V+ y6 Send1 b K; X2 O6 w! c6 }' R: z
2 ]4 g1 u. g4 h# N2 T, Qto update-global-reputation-list
0 s f! B' w2 M5 g' F) |" Zlet j 0
! k: m; {4 K! b7 I+ R2 h% H7 @1 a$ [while[j < people]
2 F7 G2 ?8 o: Z q[9 P$ I' ]) x! h I% p
let new 0
% v, g9 F+ Y+ `6 P0 P' c;;暂存新的一个全局声誉; A3 d$ x3 E. Y6 r) I1 a; V5 ^
let i 0
, k, ?+ v3 Q- }7 Elet sum-money 03 V# p& }1 {0 n+ P/ {5 `
let credibility-money 0
5 d1 p5 @: F; }- B# @. Qwhile [i < people]* A$ v3 d1 |6 U* p: m& z+ r: N
[
1 W3 [5 U: T! z$ L: Z( uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; K# W- I6 w9 @ i. I C6 a! Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! u. s. K, ~# ?set i (i + 1)
: T& V$ d n- d4 ]. o) d]
3 G2 H% p8 o' P, h' Y: flet k 0- ?" R: `. }* s- a
let new1 05 u/ j, |, n3 T2 a2 I
while [k < people]
) T+ P2 F! A7 E[
W! o5 O3 n- K! I. P. c1 Fset 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)3 J. _# f. g0 s
set k (k + 1)
g1 V, H: e6 ^) y$ I, s]
; G7 S C- _ S6 }' Cset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 U' m a! R5 N }
set global-reputation-list (replace-item j global-reputation-list new)3 P; T( [. Z M, X1 a2 W3 N2 j
set j (j + 1)5 G. [8 R- {& K" Q- }
]/ D% P: a! H9 [3 F/ t# f5 y
end
' L0 ]% i" ]/ Q0 V% g/ b: h
9 x, S2 m4 v$ m" p6 ~. T& [9 T0 J/ ?* Z! T8 R8 [$ |' `
* [( A0 t3 A) k& s) |% yto get-color4 ~( D0 |% m y I
2 L1 h' m& f5 m: N) Q6 r
set color blue
4 u+ Z3 J. W/ A4 q! T* d/ l' tend' d7 s7 S0 {8 |% z% ?
3 [3 P7 E+ t! ^- q& n! b4 bto poll-class
4 I$ _. H/ _" }! {$ S' M$ u2 lend
7 @9 l" |3 \. p3 l& N% z+ p3 d9 [+ s" a! u6 G
to setup-plot1
0 F+ }% t3 q( x( m
' M/ p6 a* E" O6 c; [0 nset-current-plot "Trends-of-Local-reputation"/ ]5 _: X# T7 _# t$ Y
" C; t5 c' ?/ Z; d, {: B
set-plot-x-range 0 xmax
$ `' u2 s( x1 g( X9 O! g
0 w$ M1 G9 q8 Pset-plot-y-range 0.0 ymax
7 Y& p9 ]8 i; r6 Cend
' O; r* x& M) u0 @+ o
. @& e+ P9 q* p* N( B5 ~to setup-plot2
! E s5 {7 i% K$ {5 h" p/ r" N0 K- D
set-current-plot "Trends-of-global-reputation"
6 q6 T. p% o; M8 C, S0 s- M/ e
" n) ~1 Y; O7 Y& nset-plot-x-range 0 xmax
. ?( j1 J5 H8 {
4 r. ~" u+ c, u# O& ?set-plot-y-range 0.0 ymax. a/ ^0 [* M7 M% W- K
end% K8 r" A1 y: P; e& X7 S8 S
' R t( B% u$ U' q& V3 N& @3 {to setup-plot3$ l% v& u+ _! H/ Y2 k! h
z1 J3 Q8 a' H% j3 r. ]
set-current-plot "Trends-of-credibility"
% x! V9 N/ L5 \' Q( e: p- Z9 V+ M
set-plot-x-range 0 xmax9 L; k/ m j; ?8 [) ~: u3 r. e; L
* m$ t) F2 A) M- o2 Z9 yset-plot-y-range 0.0 ymax% t9 q9 Q f g, Z7 L" m
end" x$ [ B$ g0 g9 y
! P$ q6 u7 x: ~
to do-plots
% G3 P" X/ w' E2 I* }1 p: tset-current-plot "Trends-of-Local-reputation"
$ D8 f0 J. l) V- d- j) {; |set-current-plot-pen "Honest service"0 c9 g4 H3 K$ i, H* {4 N
end! `% d5 U2 N; e6 }
( w/ ], K/ J( F& C' |( J[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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