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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
& ?: d+ ?$ K& n/ K& w3 Vglobals[
E* _* O& U- E% f6 R2 }7 r* s1 sxmax$ ` G$ _9 U2 _. J" Q F% l+ |
ymax
( m4 Q8 e% ]6 P0 N0 oglobal-reputation-list
7 ^. [3 o9 A) w' q2 ^- N' D3 c/ |. ?/ q' `9 A5 A4 \8 o
;;每一个turtle的全局声誉都存在此LIST中
2 i: @1 b0 |# i7 p! a+ _credibility-list& h6 j4 u. a. n' u" }9 p6 G% ]
;;每一个turtle的评价可信度+ G4 e. [4 a+ P J- h% M
honest-service9 D/ ?9 f% b( J" M9 r
unhonest-service
0 h2 j/ N2 w' O2 q! G/ ~1 u2 @oscillation
5 N8 s& k; i9 A, _: s+ Rrand-dynamic: e4 ]$ g* f. Q" Y
]7 i( }' M2 F* z, Z& `
' H( k+ b$ Q/ Zturtles-own[2 @5 d/ l5 n* _ _8 D2 ~
trade-record-all
# r, j- t4 G1 j1 J;;a list of lists,由trade-record-one组成( b) w& i( G% ^ t d! ~& K
trade-record-one+ M! w' ?9 D+ k8 A0 J) B
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录3 ]; K8 l4 Q3 h* _/ H4 U
& j0 k' ^8 L1 }% g;;[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]]
0 O& a6 p% |" a2 ptrade-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]6 X# `9 t$ e1 ]( \4 b `* Z
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
! D" q% b/ p8 N( A' P4 g# s7 eneighbor-total
' ^* T l8 ^0 B, Q7 I$ e;;记录该turtle的邻居节点的数目
1 X+ {1 t7 L8 ytrade-time
8 q! ?% P) K* T; z;;当前发生交易的turtle的交易时间/ W. M& M* O1 y4 @2 z b# v4 B
appraise-give
" D" w/ S! x3 t;;当前发生交易时给出的评价. |$ z( o# U% y- V! J5 Z3 I
appraise-receive
+ a9 X9 p. b* t% x, n;;当前发生交易时收到的评价6 g/ ^2 R2 d0 p# s U! B x2 v8 |
appraise-time
: T9 _" j2 I& P0 j# K' `3 {;;当前发生交易时的评价时间
' I2 e$ d2 s! I$ u- I8 Qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
- Y7 Y: E+ t0 _. \) i5 C* ctrade-times-total
9 D9 @6 j2 E4 m0 n9 H; ]+ r5 ];;与当前turtle的交易总次数" \" T5 a8 D5 ?. r7 a
trade-money-total
2 N4 x- y0 Q: u# m( m- a;;与当前turtle的交易总金额- F. A9 m8 C9 a! O+ B) K
local-reputation; Y! y: \9 {5 o& t
global-reputation
* p+ n Q, F& M+ l6 }3 Q o7 dcredibility
+ E* U" q* _* Z, U) W. v9 P;;评价可信度,每次交易后都需要更新
* A$ ?7 ]8 V! _$ |credibility-all1 n% f* y3 T; O) u
;;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 o1 Y- q- R3 z: t5 \, j% C
9 E' i' L9 Q: B2 W G, u1 ~
;;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' s8 F( p8 {" u: Vcredibility-one
- _ y7 n4 V' P;;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
: `6 ?' a1 q& Z( E. d( Zglobal-proportion' I z- `# H6 f) t! S2 Y) s, A* {7 P
customer. s" Q% {( w+ U2 w
customer-no
$ w3 Q& g% I& I- ctrust-ok
/ D% I& d& t1 S: o- }5 Q+ Q1 ntrade-record-one-len;;trade-record-one的长度0 J% g% V, L' g' }) z0 w- q- w
]
: Q8 ~5 \: H, G
4 @* M8 l: B7 I& q! F- e2 f;;setup procedure2 u6 W' g5 ^ E; y- w7 V" |
# v& D9 Z0 d/ c7 E2 ~$ V* i0 X0 _to setup5 O. R8 _6 o& R
/ h( f" G+ L$ f
ca
: [8 I* y" I2 a2 b# X* m3 q4 c
# ]8 x8 X( T" Y& H8 w9 `) q$ ainitialize-settings9 `0 F0 L+ ~# ]1 N
! t+ r' f# Q6 Y' S
crt people [setup-turtles]
P6 l/ S! c) P! \0 C& y r' ^! z% i2 R/ q% f0 p
reset-timer
( ~; \ h, l# E# u+ `% C
} h* X: d' H3 B- H- \poll-class% |0 |6 m- ^ d% q; U
% X$ R1 o: B- F6 q# B5 C. \' g( T
setup-plots. D% H/ v2 C, F& j8 X
) P$ A) \* A3 A. G3 e1 S* \( a2 I
do-plots- u. b* d: y2 a9 h: ?# f. @9 k
end
* b% x6 ?" \: J
: O8 Y% z4 t1 p" ito initialize-settings% L* Q0 S, }) ?' I$ D& W* |
$ U4 W6 B/ k# |$ Pset global-reputation-list []
# `1 @) k' y( D& |* m0 O! g3 w
- a" k$ O; ~) ?# @: y2 }* jset credibility-list n-values people [0.5]
: `9 l1 _- w2 v9 u0 h8 t$ d' j2 _, E# X& }+ `! I
set honest-service 06 r6 [* l" ^. m: R
$ F5 m T, c2 jset unhonest-service 0
2 ^! p5 S' x* y. P
4 l6 ?7 I6 d; ?& o! _; dset oscillation 0
$ ?' H& c! R4 h4 d7 Z* E5 J. P1 t3 R' I1 q+ W
set rand-dynamic 0# `: n* s f& C$ t
end1 W. S5 X5 D9 l4 O7 n) O: r6 W, X
2 n% N) M ?4 m1 O6 _% _% Ato setup-turtles
0 c1 U8 b# _3 r1 d0 ]set shape "person"
9 v) c" W0 M2 Y* m! ]" P( Gsetxy random-xcor random-ycor
K' D! G" `4 K) ^& N- Tset trade-record-one []
$ M: M1 L4 N' h" V: o. C
, n1 j6 Q+ M3 T& c6 t- eset trade-record-all n-values people [(list (? + 1) 0 0)] ) Y: ?$ Z7 H1 s$ L
" l2 q# w$ A; Y5 o( c
set trade-record-current []
' {6 ^* U) l. i/ b Eset credibility-receive []
% o' F0 w' G6 p) N8 k- Dset local-reputation 0.5! |2 {: W9 U1 a) t2 R
set neighbor-total 0( I; m" ~/ T, q
set trade-times-total 0- R- R7 s5 d% _3 q* B) q9 l8 y4 V
set trade-money-total 0
( p1 ^, `7 [5 e6 d/ x# Bset customer nobody
- c3 T" M$ M$ n0 c- T6 W8 oset credibility-all n-values people [creat-credibility]
8 N" @6 W: b0 f2 ^! J0 hset credibility n-values people [-1]' P! Q2 B2 ]' w. ]* W
get-color. S8 b. ^' {. Y
2 Z3 V! W+ l' b3 g2 _. T$ Q
end) N) k6 s, [$ C6 z8 ]
& \3 B8 j# R& e6 L. x
to-report creat-credibility
3 u+ O5 Y! G8 S+ freport n-values people [0.5]+ z+ a* X+ z. \ }' ]' L
end
7 u% |5 \! ^9 p
8 T. Y% U W1 y+ W6 Nto setup-plots
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set xmax 30! p" Y) D! H3 p \* i0 a' {
Z& ^1 ] @* G
set ymax 1.0% D$ e8 F- o- j: Y R1 r
% O8 S/ j/ Y$ w. V5 Q& @
clear-all-plots3 U- s5 t, H! o
7 u1 t: `- V% I; p1 A9 Q4 I l* Wsetup-plot1( y# [- P b( I" y P7 M3 J) }
5 c6 g- a' @. B, L4 z# Q+ R
setup-plot2
3 w3 x& a! p7 p$ f6 ~, l( D6 `6 S: j+ s
setup-plot3/ |# T% ~3 Y- P/ r! q
end
2 f! b. i) O# b4 C, ]0 x* S# M7 O# W6 E; B* e) p) Y) Q
;;run time procedures7 j: I6 ]* U. y) _( J
7 ~/ z: {( |" Lto go( ?9 N, A* i! M. U7 ?; s2 H
& c; Z( W( Y9 ]' ^% F! D# a& \
ask turtles [do-business]6 f1 S& w! B7 `& C7 d
end
. o6 z1 r( u% G' r/ H
: \7 K0 Q. a9 f& lto do-business
8 q7 e8 X S% L1 Y7 H6 H
6 d6 u6 j. } I6 f: c" @
, O/ G# K! d' t* }5 ]" G. ]. j* lrt random 3602 u3 j+ i- Z: W, g
# o9 `2 {. @1 P: [7 E
fd 1
( |4 [. q1 Z0 ^6 B
, k5 A( S5 G& t3 {' H6 c" bifelse(other turtles-here != nobody)[
# t9 z, h( U3 y8 @# ?0 G& \ q% ~- Z! o) N+ j! H& P
set customer one-of other turtles-here
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3 N H: R9 n$ @;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)5 I! \0 N4 |; n
[trade-record-all]of self
0 m2 U& T4 k7 R( D/ D+ _$ S3 P- c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& T4 p9 N) x* Q0 g- a" \
% N- }0 e% D' A1 K% C* _0 T- l$ ]set [trade-record-one] of customer item (([who] of self) - 1)
- @4 N r; e5 y' j) N8 q6 M[trade-record-all]of customer# ~ y, s9 M" `% t
( @- m. _% y3 i0 p6 y4 W8 Y/ Z, m
set [trade-record-one-len] of self length [trade-record-one] of self: H0 j! f7 n* A" c0 F* y9 P7 F% {
2 q1 N8 b& m& e# s6 `- `" _3 B! [2 \: Uset trade-record-current( list (timer) (random money-upper-limit))) V7 ?9 I# Z2 |/ L: [5 q* @
& J2 h7 P7 t# e
ask self [do-trust]
6 m" L6 f& L4 e }: r1 w1 R3 y3 R4 [2 d;;先求i对j的信任度
+ |* O6 s& C$ D: q2 v+ s+ a0 L. S' ]% R5 l3 x1 r' P
if ([trust-ok] of self)* s! m' H$ |4 I( D
;;根据i对j的信任度来决定是否与j进行交易[1 B# G ~4 N! r4 N7 o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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* o! u3 ^% E, p[
5 V7 |+ G% [( F1 |) u3 S6 I( K0 ^& b% f6 O) i
do-trade
4 `( F* J! r/ [% y! H; y) A ^$ a5 c( k
update-credibility-ijl( W/ w3 M( Q8 Z) s( R3 K
3 ]% Y- P1 _# |2 K' ?update-credibility-list
% u0 ?% N. }# |! ^. l3 h% Z
! t/ ~" z: `: D* \$ L$ V* @- U/ Z% i0 R5 A
update-global-reputation-list
8 {5 t' w$ Q3 s2 \ g5 c
1 X+ h N; a* s9 {+ w0 ^" mpoll-class
+ X9 M. E4 \/ S% r. s! M! y% _8 Y+ B$ y; d" r' q5 \5 t! `8 l3 X
get-color
; S. \" v" x' W5 `6 K3 b" i, C) o
]]
" C- Z7 n$ _$ j: F* o: ~7 P
1 K0 E/ I9 B9 z# i1 j# }; n;;如果所得的信任度满足条件,则进行交易
( G7 u9 \- a) J3 ]' j( U& P, ^- t" m) o; f; N9 ?- H- C' k# z
[/ ~. E4 S6 z- y* z1 B
( g; _0 U# b0 L$ x, W& Y# V5 t
rt random 360
1 i1 J- K6 _3 J$ [0 E4 A! e- ~0 |2 X( y3 w
fd 1( @9 `( g, A! i# v. R/ ?! f' y4 ^* ~
; B* `0 w9 R! J0 Q" s: A]
5 w, U/ {: S2 L {1 k- i
* w& t2 J! n5 o) a: wend
/ C# A" f' h6 v& Q- }0 e) U7 ?; @# t$ H
to do-trust
9 i% W6 }% Q& \8 n# Iset trust-ok False
( l- X+ b; {0 c) G0 R0 X( }- ~3 J& [2 c+ \
- \) o2 U: _0 n* ~. G$ f
let max-trade-times 0
5 S1 w* H. B9 d" _, s& M( mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 n0 J+ _- F! j' X8 R1 ?* {' Plet max-trade-money 0; U" ^, P* c2 Z5 @; g! N4 U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 N4 X3 |4 q h! {8 ?+ u
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 d: h6 Q/ ^6 F& Z! i- j
+ f( H! [ P3 M) g- ]' \! _8 F" b1 _3 R" B9 g: |
get-global-proportion: T( D1 {' W" v0 ^
let trust-value
3 ?/ I$ ^0 k" ~% c; F9 tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)0 a, ~+ ]& C" D- m% N0 \, W" ^
if(trust-value > trade-trust-value)
3 j9 Z; v9 U" H: w8 I8 D[set trust-ok true]& w" t+ g; o1 k+ w' ^
end0 |$ {" k+ Z. E0 e" C1 H- S# C: Z
! X% ]3 U& m1 R# `0 F% N. Y, O
to get-global-proportion
/ K0 j0 l2 h& ?! H' Gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 F0 W3 x0 O' h* m0 Z' q[set global-proportion 0]) d3 _" Z7 T* ~1 N0 u
[let i 0+ g! G4 C; u) e6 Y
let sum-money 0: I$ n5 D3 i& ^3 @% Z
while[ i < people]
& k3 l( R$ f% _3 Y E' s; ^# j[% h6 U" @' h1 t6 D5 L& ]+ r! W. Q
if( length (item i
3 t3 R0 \: E. V4 l: ?& @[trade-record-all] of customer) > 3 )1 ^# G- {" o6 ?& j# h3 F" P
[% C# i# H; U$ R
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 S0 o; E9 B: k; C
]
# \' ?- E( W2 L; z; r& W! ~4 N]0 e9 ^0 ^! @6 a0 y
let j 0
; k* k" W1 P! B4 i3 _let note 03 ^ F# V& o' G
while[ j < people]1 g6 f, z% S/ i! @" r1 s8 H" r& M
[
3 y- O; `% Z& p9 ~7 Y# Cif( length (item i2 }$ v' s) H i. K. d
[trade-record-all] of customer) > 3 )
[' ]$ D; U) I[
" v6 G w& [- h4 J& Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 }9 @; ?6 _( Z; \+ q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. B# Y7 T2 u4 i* w3 P
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# [: n9 Y, P8 g2 r: Y/ J
]1 F3 p" h1 T+ g3 l
]& y! `9 H- |' c$ N. \6 L7 x
set global-proportion note
: u0 r, L- h& G1 ~1 F9 f1 Q% S9 h; f]
, U5 o/ G! A# Q& z+ d) J6 w% N7 zend
( @9 C9 I$ L5 y+ F( E$ a* \( \2 p$ G# w$ g6 d
to do-trade8 h6 ~5 @, \- [8 R0 }/ z6 h1 o
;;这个过程实际上是给双方作出评价的过程
' S( u3 X) D; uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. _2 B3 F* R' u" y/ L
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ x& Q' o! L2 ]- Bset trade-record-current lput(timer) trade-record-current, q6 e, w$ Y4 w" R
;;评价时间. t' E: v$ e( z2 i
ask myself [0 C9 |& h0 l9 }1 g1 ?
update-local-reputation8 `; C. O7 Z9 r% \0 j
set trade-record-current lput([local-reputation] of myself) trade-record-current# W ?. I9 `; {6 ^! D: o* m
]9 S5 K! u1 l% n. t6 O7 w
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ s7 L! S6 `& q3 u;;将此次交易的记录加入到trade-record-one中
9 d/ B- _" I$ }6 I+ [4 ]1 xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 _9 @$ r. V! _& xlet note (item 2 trade-record-current )& d) Q/ H* B* \2 H
set trade-record-current
: |; z$ p6 x9 n W3 |, N- w(replace-item 2 trade-record-current (item 3 trade-record-current))
+ j2 G* C2 U0 D, ]set trade-record-current$ ^& {) S! V |8 r3 c( N
(replace-item 3 trade-record-current note)
0 {3 V7 C% I7 i3 S) j
* {% I2 ]: W% E( \: W4 A
9 L7 o! b% k4 }% P; @1 Vask customer [
! i1 t. [5 d, i9 m( B' ?: [* R2 Lupdate-local-reputation p% D- A( u C% _
set trade-record-current1 W2 q& `8 b% N2 k
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! `9 _, |' l3 t6 y- e- Z
]
* ?1 E! m" s+ j% B5 A2 X9 \, B
- m" `: F7 {4 D9 J& Z/ t% Q I% c% A5 d- y( D; P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ t' _' B9 x9 C, G
4 o0 j6 E( n! u) y; xset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) X$ C9 \. f- x7 k Z
;;将此次交易的记录加入到customer的trade-record-all中
+ c. V1 ` m* z4 O8 T& S Hend
- J$ S3 u" R( F) l/ |6 O% }5 d) I. e( m5 M5 I$ p! }
to update-local-reputation. h |" R/ z5 ]9 N; O& r, I
set [trade-record-one-len] of myself length [trade-record-one] of myself+ X( L: H) |8 Y5 [! m
0 l5 ~6 l0 M& W( ~4 z4 F. l- R6 l* i
! L! Q. r9 S) Z( D7 f. `- }
;;if [trade-record-one-len] of myself > 3
' W2 l2 ]/ r. S1 Z L! X( X: I. }update-neighbor-total
8 v( m; H. v& X: ];;更新邻居节点的数目,在此进行4 }. _. N; x% z# x
let i 3
5 p% u0 Z1 P' _) qlet sum-time 0& f6 ]! L5 ~/ S
while[i < [trade-record-one-len] of myself]5 |- _/ ?4 }4 e( _* ?8 L+ a* {
[
3 F4 X- l9 M- c$ Hset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( V) Z. r7 N+ o, l) x: |
set i0 i( a* \: D. S) ?' H
( i + 1)
- o4 H* \! c* w( c h' x2 r: l]3 r5 C0 ] M% U" f
let j 3
/ B% H* C; d( F0 V3 D6 b \ |let sum-money 0
& q5 W. `7 b: p. c4 X) j/ }while[j < [trade-record-one-len] of myself]; \/ {5 c/ o7 p9 @- q6 T: N
[- e9 K" q! r" F$ ^- v- E/ W
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)
/ I3 D2 t E- A! P; n0 Dset j
. O2 c/ u) d. F$ s/ r ]' v( j + 1)
. z) W( }6 \& y& b7 m* }9 K. A* F" K]
! R. Z; o6 o( Q; Elet k 35 O: R* x: U3 H! [, b% G2 D% Z
let power 0
- e$ e+ @% T/ o7 p+ `3 Q( \let local 09 n/ d% z- y$ }- D+ K2 H$ z
while [k <[trade-record-one-len] of myself]% I6 F. x/ i3 M& |# M3 r& l
[0 D8 z" G1 p+ B9 R$ m+ a
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)
W' C7 Q5 S. i* ^9 xset k (k + 1)
* g( _4 M! P: o9 n1 t5 R]5 b2 Y; ^0 h9 V) R- g6 O! w" ~
set [local-reputation] of myself (local)
# v! s6 Y, Q- C* k5 u; V( wend. }. j& g+ m8 Q" y! E' e9 h& o T" h
/ m# M" \0 [) s9 e5 a% H
to update-neighbor-total
+ v( x& h% t5 e2 N j( u2 n/ Q) P# M8 d* V
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ w8 M. v* M) \$ X; M& A% f* z
5 _3 q6 p2 A. {+ ~2 J1 ?
3 V" l- ?# W& ]& E7 Lend7 F) V# Z9 c7 r
% O2 o1 p" U( T2 lto update-credibility-ijl
! \! u2 P ^2 h% i6 P" M: h1 E( E& w" r2 F! g' h. 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。
' V A6 }7 }' ^7 n% v7 \* Vlet l 07 Q# w2 H6 l5 G# U7 }" h
while[ l < people ]
9 | }) _# r' x;;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; `; A' K+ R! Z9 y, E( U# g
[
$ u0 t$ L" F" o) k* Mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ i8 S- e6 v ]+ yif (trade-record-one-j-l-len > 3), e0 O3 z$ @8 z5 q
[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
% Z" x: M/ R0 j: \9 j, \& `4 wlet i 3- c( `* `, J! _( z9 X. k
let sum-time 0
; @6 R7 [' R M9 e1 ?while[i < trade-record-one-len]
; R- Z( ~: ^, h7 A6 r: w: y. h[
0 x7 P/ o" K3 o$ P1 V5 Z aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( }! K a1 Q- V
set i1 |0 y: p8 E( E! j3 O
( i + 1)
g7 n+ p1 G% N+ n9 |]
, \4 t4 w7 s" `$ P' N4 s4 Klet credibility-i-j-l 09 i$ E1 X( o# _% `5 J
;;i评价(j对jl的评价)
4 @, n' J9 n' |let j 3+ g4 a* m) F; q& t8 k
let k 4
4 q6 @0 U& h; V& r0 gwhile[j < trade-record-one-len]1 t/ [- w% N! f! `; m' ]+ v
[9 j: I+ z; Y. Y, E& G
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
, i1 W w$ \2 ^1 m# g) Nset 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)) D; g" f7 y/ F3 }
set j
" n# F @ U6 `8 F2 n& g( j + 1)
/ [$ T, I, p" \2 Y" c]% _! Q8 l6 ^) {: W1 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 )): E [- i7 Y; P* J6 P
/ G: J. d p: S+ @9 }6 B5 t3 ?" J: J: N5 K/ x; x/ b5 [8 j8 [
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) v8 L' @6 G( L;;及时更新i对l的评价质量的评价
" q2 `& ^* I( Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. Z+ O8 O) `& K& l7 s2 x( A5 z/ vset l (l + 1)4 |8 z4 J6 y* V y2 q! Q
]9 r& v5 \1 h) e/ S: @9 l
end
7 N- H0 z4 m. F: z% z: l1 o. ^- ~! V* q
to update-credibility-list7 b# z, ?* P0 Q6 E- v
let i 02 E3 K) e& W) C4 m5 s: l
while[i < people]' y7 C% c# a4 A2 ^
[
" ] `( m( T; A5 }4 Q* Y) Q/ J+ elet j 0
1 X- |! z4 B+ ~! t. F! m! U1 rlet note 09 h4 \" ]; |1 J8 }4 `
let k 0 G! s& n: C9 i. v
;;计作出过评价的邻居节点的数目7 ~. u( S3 J7 G
while[j < people]
- g9 K7 `! J0 A[
; z8 e; h' X+ ~" L+ D/ Z4 [6 mif (item j( [credibility] of turtle (i + 1)) != -1)0 u6 o. \ B6 z; C% t
;;判断是否给本turtle的评价质量做出过评价的节点8 e# q( d7 v$ c) A0 t6 g
[set note (note + item j ([credibility]of turtle (i + 1)))2 [) m9 \8 F% z8 L" ^; A
;;*(exp (-(people - 2)))/(people - 2))]* N3 C. L( z& s% H6 }" G2 i
set k (k + 1)/ z" w( A- w% H3 r! S
]
- e" |. A) y' Aset j (j + 1)
L5 e! V! _8 d8 Q]
; }) y n' q0 oset note (note *(exp (- (1 / k)))/ k)6 K" p# D* m( N3 m
set credibility-list (replace-item i credibility-list note)8 ~# R) @% a$ z1 Q$ \. U
set i (i + 1)
$ [) p/ D" x; A* S, `/ m/ U]( b8 F" d# s# U( R; V! Y" ~7 y+ G
end3 }5 J& Z$ T: `. ?( I5 a( N1 M# d4 ?
2 P9 N" P) f: C3 \3 j( hto update-global-reputation-list
- @: d h. E3 g$ plet j 0
$ O* U) w( i3 \8 O# A! gwhile[j < people]1 D- w# e7 A) ~0 S
[- s# B! e: N2 f; V( e
let new 0
" |0 r) k7 M( j7 |;;暂存新的一个全局声誉, U8 B% R) H% G
let i 0
. F9 }, [& d2 `+ v5 ^$ ?& I- olet sum-money 0% C1 L' K' @! o
let credibility-money 0/ t; A$ t B7 d/ f0 _" a
while [i < people]; I: q7 ]* h x5 G3 d5 T. f
[$ E! _- ?( p1 s! s
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 F! ~# F5 [. j6 F3 _" S, M2 S6 f
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! ]. b. C3 T$ s, }$ V. ] o
set i (i + 1)
( [( l. T: Q" v _]0 \& A3 n' X6 d' |8 Z
let k 0
8 a6 q& @. k9 O* j* Y0 W! _let new1 0
7 Y$ K8 l+ N: O; h0 c7 D2 A" ]while [k < people] z2 L: k0 Z7 |. L7 x: ?
[
! Q# b* M2 d* O! R3 Aset 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)- M6 i+ }4 v3 ^' E# s$ n
set k (k + 1)
: Q) ~. I+ f. z( k& l]; r! h' m9 S5 q5 \6 C1 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 E6 n2 g' _8 v$ U: kset global-reputation-list (replace-item j global-reputation-list new)7 A% y) e; S8 F9 g# w
set j (j + 1)1 D3 h6 P' \# O- r# ~6 n+ i7 X6 h
]0 T$ p& k2 y X$ @
end5 l" n2 p' u4 k1 P r& ^
* b. T1 S3 b! S3 p9 k/ M; Z4 t
+ `( @. E. A/ M
1 H; y4 z, J; M* N5 K- [to get-color
. o, b, t9 U" L) U% g, R; J. p
0 ~ h: i' y) N/ y B2 X5 kset color blue
9 o0 u9 }7 r$ A' ?: F9 l( Z: {. N, fend+ h' v* n* @! G7 o6 H& M
8 i: I4 C _* t. d
to poll-class
2 x. n/ e' M m; u6 bend
[4 i* s K; i& J( Q5 O: B: E0 c5 z$ N' L- D7 H
to setup-plot1( c( Z4 X3 a5 k' I
; ?: v3 o2 b6 v5 J L3 g, Kset-current-plot "Trends-of-Local-reputation"
j! z# g! l; g$ L Y/ s8 H0 k/ q
& V! @8 l& p* ^' n# ?1 t- \0 Sset-plot-x-range 0 xmax
' g9 Q: q7 q% v% o0 T; ^+ M7 k) M y- D+ [: _$ c
set-plot-y-range 0.0 ymax
' K2 S q, Z$ s2 Y6 y; W: Jend3 w' k( ]) D2 L. R' |7 v
) a3 j+ F8 d) a9 I% O# J1 m5 nto setup-plot2
% H; y7 d+ E3 v0 D) _
& ~! t1 [1 x5 wset-current-plot "Trends-of-global-reputation": t& G5 N ]; Z9 }- c
3 m8 \ X, Q& R# y; R/ Zset-plot-x-range 0 xmax/ `' m1 `7 D' W; [
0 A. ?# V4 U( D/ H4 u9 n
set-plot-y-range 0.0 ymax1 E1 H+ I& j X& [
end
! c) @+ Q% ^) y' p! g' u
6 v' C4 R5 B, k. f, O' E- gto setup-plot3
& r/ X1 q! p. P' U
f) \0 ]$ z% J! w$ tset-current-plot "Trends-of-credibility"4 ?' Q! w- t3 h2 H7 j; z5 O: B
; A/ K0 D9 ]5 e5 [2 b2 Qset-plot-x-range 0 xmax$ i7 u% L* M) z
% V) R' n% Z, W" n, Vset-plot-y-range 0.0 ymax( S4 ^0 p, `8 t: s2 g
end
; D0 G7 |+ I! w* H
4 F- o% u7 L# M) i! |. C% @to do-plots9 M S3 U0 q# h! M1 p; v
set-current-plot "Trends-of-Local-reputation"
+ H8 _# s5 ~$ u F+ m$ F4 vset-current-plot-pen "Honest service"
$ u6 d/ `; h1 z3 J; vend; W8 Y! X J, ~
' z( W( |' f6 _$ Q' |2 w
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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