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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
/ F9 N. ^* V. ?+ S2 \globals[
# d2 w0 o7 M, B& exmax
1 B, u$ }* U( y* b R9 K! ^2 nymax" D% v" V* T0 u6 I
global-reputation-list- X$ z. u3 E0 Y5 E& _& F
8 D/ v0 i$ S: Z;;每一个turtle的全局声誉都存在此LIST中$ s9 b2 m0 r5 m' Y3 K, E1 M
credibility-list3 g/ E& E; J. B
;;每一个turtle的评价可信度# Q* T( V, t/ O4 ^9 \% \0 i4 g9 [
honest-service
1 m# w$ K6 T9 M j& Q* N6 Nunhonest-service: c1 @; d' I8 Q# ~6 M3 h9 u$ B+ v
oscillation
' F$ ^% C/ [: A/ Irand-dynamic
" ] f# N* N$ m* J% Z5 o3 V! ^]
2 Q! ]- O' ^$ N# b% e) t: m* l7 e* r
turtles-own[
' S- ?4 [' ^$ l- {5 g0 {' f1 ftrade-record-all
' d& v6 j+ A# S% K& s9 {;;a list of lists,由trade-record-one组成
0 s) |! R. p* l( J, ptrade-record-one
# t1 c& `! t8 h0 H7 c& H: J. p;;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 u4 b, r* j6 r- i2 l" {7 T3 X9 n2 m
;;[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]]
& |, I, Y+ u" X" |5 d& S" }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 v5 e' O' l$ y# `* E6 i6 [0 Q% Ecredibility-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, E6 K( y7 M& V7 b- p/ y- |
neighbor-total
9 Y) @0 ` N+ J# _& `5 r;;记录该turtle的邻居节点的数目
# M" Q1 W. Z/ G( R0 }trade-time; m7 P4 N1 V! T/ ~" L; }. [: I& u
;;当前发生交易的turtle的交易时间2 Z7 {& v, f$ [6 O+ |& T
appraise-give9 }/ c; Z% B% w
;;当前发生交易时给出的评价( I2 C, ^3 n6 `+ a! y! v
appraise-receive+ T1 O0 ?4 u+ ]. t/ N
;;当前发生交易时收到的评价& U3 ?# K( e J5 l- [
appraise-time
- D7 l# `( b% u$ w& v;;当前发生交易时的评价时间
' o6 t$ Y2 v7 P2 P: ]( l5 @7 ^local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 Z4 b- k& g0 i7 }* L& E( A- n0 ]
trade-times-total
. |! [* X% \2 Y$ k' @6 \8 d4 b;;与当前turtle的交易总次数
& l$ i- B2 ?+ z! \4 e( n$ Dtrade-money-total
5 U. y* H, m4 H;;与当前turtle的交易总金额
+ n$ T k' _ G% Mlocal-reputation
4 s# @$ K+ |) o5 U# Fglobal-reputation9 T1 q# C% p0 n$ S7 O
credibility
5 n! m( z4 U$ t+ s z/ ^4 z;;评价可信度,每次交易后都需要更新
" U% Y- y9 |) q; h+ o) q$ qcredibility-all3 t2 E! L0 L5 s* \) D2 T$ B% x
;;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8 V7 W3 o+ c) s2 ?, p3 [( P
6 d( I6 M- r' K9 L3 G& L( G;;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* p# L6 ]5 i& ?' T
credibility-one0 ~5 o# y& p# m5 \* J, C1 V
;;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 h# V2 T0 V7 H1 f' f
global-proportion$ D7 k! R/ S/ r. y
customer* ~; ?4 m% `) ]2 P( i8 \$ z
customer-no
( e1 A: y3 {+ O: d+ b! e5 `trust-ok5 U2 i% }) V r% B
trade-record-one-len;;trade-record-one的长度
( w" Q8 |1 X- h2 z: ], R$ W]
/ n% j @8 ~! s: O) ~5 M+ f7 N5 l) V- F2 B- r0 q) G. h6 [
;;setup procedure/ U3 z6 M+ Y. d1 c
: f/ j: b' B# u( Q/ m6 Cto setup
& V8 E7 o8 Y# V2 b+ B7 Q h: @8 U2 v8 k) ~' e; b
ca
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initialize-settings
?0 k+ m5 q( [; A5 [) ~; G1 z, X0 X/ Z; _8 e* j
crt people [setup-turtles]0 a5 q1 f# l6 H" c; M7 F
' |& ]: z6 \1 N* R" C
reset-timer
0 [3 J0 _( o# f# l
1 q* s' \/ v1 Ypoll-class( G" R5 s2 Q$ J
- r& t$ Q/ c# R& N0 s: l- u3 j2 Isetup-plots, \: t4 ?; `: N8 w# |, m! _' y
/ d7 O" q" a- |5 T$ N- z7 B" ado-plots
9 c+ ~. t% j" ?: u7 hend: v" \3 y5 } w1 J
& ]* w- }6 C7 I* f
to initialize-settings2 W2 ? V2 K; [' {) Z6 W
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set global-reputation-list []9 m- u0 Z* [# U, e
$ t5 U! W$ S6 d- c
set credibility-list n-values people [0.5]
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set honest-service 0
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set unhonest-service 01 x! |+ P' b/ |, ^2 f3 \) f
, D1 w3 i l" W. e
set oscillation 0+ E- f8 M: G& s( R$ D
& k3 k" \ V: r, I! R! m$ a* z
set rand-dynamic 0
: Q+ I1 Q: w5 X" u6 Wend. \4 u1 W6 K0 W5 T" H. [
' n1 a1 @# k. S# x1 vto setup-turtles
2 Y, O7 t3 Y) d0 cset shape "person"9 o3 @3 N' M0 p9 b8 Q$ \5 ]& B8 y
setxy random-xcor random-ycor5 { q/ E) [" v$ I
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] ! }4 r7 F+ O+ \+ Z/ Y0 |6 Z5 T4 R
* N' s& v6 v2 }set trade-record-current []$ ~" s2 ?& O# m) s/ L
set credibility-receive []
8 W, ?7 H4 A( t7 xset local-reputation 0.5
( O( `" y. Q6 c2 q/ M- Pset neighbor-total 06 N5 J) u6 x# F, d1 s
set trade-times-total 0
5 {4 T$ R% ~& v' C; ^7 ]set trade-money-total 0
! Q+ j1 P [$ X/ O+ F/ i8 B: Rset customer nobody( y; }' f# [7 g+ c: P( |
set credibility-all n-values people [creat-credibility], B- F: `9 r+ t: m' I7 f& Q3 I
set credibility n-values people [-1]3 t6 T% r& c- A4 J$ M
get-color5 g' c. Q" g% r! r/ o! D
# {+ l" p% D @- h
end) ~* j; l) |* T2 A+ L$ a
, m# y% w- t& z: \$ m' f
to-report creat-credibility7 f) g0 L% y0 e1 A3 b% t+ U( C6 ^
report n-values people [0.5]1 {5 ]% D' E/ v- v; l4 S5 @1 j
end2 r3 Z! m6 v3 L9 _# c6 w
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to setup-plots
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set xmax 302 n3 v/ o; A! D" u0 f& Z
+ z& f) F# r" ?5 v" ^
set ymax 1.00 P6 P9 ~# L% B! F
& l5 ^6 V) `; } m
clear-all-plots/ ^. o' b' s1 S9 B, ~- n: E8 J, }* t' u
- t. x8 V% }8 @+ n
setup-plot1: S/ |6 \6 l) o& R
: d( {: _5 m {4 |) ~
setup-plot2. g- C( M, v9 }1 `3 c! x o7 B
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setup-plot3
( A* I) Y; R1 h% Q9 l! n" d) f0 cend1 I7 k; f j1 f& V
# U1 e& ~. d1 n3 x4 I9 l$ U+ o
;;run time procedures# Q& b& V/ r( _# S& i
; Y/ @" Y3 s4 T9 |' | X& Sto go* P" C9 |# j% o9 V) E( Y
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ask turtles [do-business]; ^; e) A# b F
end
/ _9 q( {& P2 `/ [ U1 X
! E" Q* @! H% x) yto do-business
* N \6 Q/ h3 g/ J- N- o/ Z4 z9 c! j
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* v$ K9 F! {( i/ |' G2 brt random 360. p5 c$ ~& O8 O" f+ M- c
+ Z) q7 p; @+ o. [' N) ~fd 1* P, [* }8 E) t! {0 y+ [! _
' [8 E% U, e+ h1 | b, F) U, U
ifelse(other turtles-here != nobody)[: u: W G4 l, H
& h: f" }% O+ aset customer one-of other turtles-here4 ?% a3 R3 S9 v r9 Z) s: `
. P2 T5 Q$ Q1 k! ?' P1 X+ q: M" R;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)% I( P# r1 [9 K% T* S/ U& L7 D- \
[trade-record-all]of self
4 \3 F4 C K* w2 e" ?;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- X) y& M5 [( h$ N- Y9 [
0 r" M, F! h& d' z# U" J; t: \, X! q
set [trade-record-one] of customer item (([who] of self) - 1)
: U# C* R+ w' V: V[trade-record-all]of customer j7 U2 d5 X' P
& {/ v+ Y. o1 f. _$ F
set [trade-record-one-len] of self length [trade-record-one] of self' B+ ]. r7 c( ?- m: U. M
7 f/ m! g+ g9 \6 fset trade-record-current( list (timer) (random money-upper-limit))
. |6 k- l1 {' d' E& e
6 E0 |) n _, [9 x8 h* ?! w$ vask self [do-trust]
$ P, }) c/ o& n' T1 K- P;;先求i对j的信任度# [+ b$ w6 |/ u
3 q5 c* b0 q5 A0 [$ h4 oif ([trust-ok] of self)
: Y' P! J6 X8 q;;根据i对j的信任度来决定是否与j进行交易[4 X1 ~; a/ f* o- N/ T4 A) ~2 H ~
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
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do-trade b% i7 E; }. s) `. q6 x
2 W4 m7 y F; v2 v p5 @- Z
update-credibility-ijl0 `2 n: \6 ^1 l- n
( a: }# g' G5 H) Z) G hupdate-credibility-list
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% O/ W' n+ A& o' v. I+ ?
2 r; O0 g$ Q8 N4 N6 t* m& ~: Fupdate-global-reputation-list, [) \2 [6 v2 c3 D2 x0 N, P
) x' o( s4 d Q! M6 Apoll-class
; K @/ y6 O9 h% V7 G0 U( i" P" G" x9 @* y+ [8 i
get-color' A" ~5 V* X D. I+ r, z
- @7 V6 x% @% U]]
: d, |6 w7 K- {$ c0 i/ C
2 c* P0 |5 u3 X$ t# i$ t& j;;如果所得的信任度满足条件,则进行交易/ l$ s8 [! a( ?8 D! m1 N
3 y' a8 w5 k- `9 A
[0 {( {8 Q7 U$ u' S! ?5 D. m; t3 c# L
$ C# N9 [1 e2 T& J9 ert random 360* a$ x4 H$ t& X8 R) N, }2 l
; e& e0 f/ J- Yfd 1, @! \( q4 _6 B
1 Z, i2 C! c3 Z \6 `" G# L
]- K, Y" b, y' y* {
' Z- t# Q) {+ n% p( {
end
1 S( [, l% B" R8 ]+ h' b
1 E! Z% h8 W2 u/ b3 f& mto do-trust ' \- T% r E* b( a
set trust-ok False
; ^, G: H) a! C$ U3 [4 ^) D% @$ z: B* I; h1 _ h
- G2 z* y1 x! {" X' @let max-trade-times 0
1 F/ z [! H/ t9 vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# ^9 g, [* ?# y" T7 V# \! @let max-trade-money 0
( i* k8 A2 Y. d" g$ Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 B y8 \: r8 b+ o. |) _- Z" f0 zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 e+ k5 m4 n1 d9 z3 G
# e& ?4 w, ]- T N8 X5 p" d! K# T0 M6 R
get-global-proportion6 M6 y& h- n9 S$ ?1 U2 g
let trust-value: p ?3 D# C$ c6 L
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)
; P8 R) Z4 V' X. `if(trust-value > trade-trust-value)+ B4 V V' ^' A# d
[set trust-ok true]
n) C& e* t( Send
7 Z" T' T8 h5 h( ~
% F1 U1 v k2 q* @to get-global-proportion1 Q6 u. ]& J3 T/ ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( U6 O) ^1 t- \7 O) k7 S! s- x) E[set global-proportion 0]
s( A4 g1 N9 P3 V& R: S$ k& K[let i 0
2 q( Z2 E/ n9 E) v) \let sum-money 0
. r% C3 o" M% g: Gwhile[ i < people]
2 j9 V, c0 s' y, ~/ k- \[
5 ~( Z; B+ u; O- B3 H9 v9 \3 eif( length (item i$ _8 E% f5 F, t2 V7 R) k4 ~
[trade-record-all] of customer) > 3 )
- N" L1 | ~! T. X; F( _6 I[- k" ~: ~; u3 a/ }' f8 `
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 A/ l, r+ |2 \1 ~# j2 H]
) N+ M, m* d6 q, g1 S4 c* d9 S5 Y]
% a! b0 m' Y i% l- Qlet j 0
; Q. ]- j- Z" s d$ Hlet note 03 r* j' J9 T, e) I( L6 @$ i
while[ j < people]
4 [0 i# K$ `- i. m9 T' I[4 q( l! A& \" j! i7 I, u
if( length (item i. j7 Y4 q! p" q1 i* }- d+ b& w
[trade-record-all] of customer) > 3 )
8 B8 N3 a# ^* x" p0 A6 ]3 ], p1 }[5 I0 u% L9 Z4 d8 ?
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( U4 k6 R/ v$ g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' d1 `4 N, V- E# h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& Q8 l3 x2 P& h/ C- ^
]
1 {6 c R5 \- U. G]
) e- \5 S/ Y) L; E, G# Y3 gset global-proportion note8 Z7 W9 V: q& E N. E& ~
]* U9 E9 C- Z% r- S! [5 _" ^
end
% D) i6 h0 ~) T+ B! Y% P! F6 @' u* Q: l8 N! P
to do-trade
+ H5 X- r2 }" T( G: w;;这个过程实际上是给双方作出评价的过程7 R( { V; |- k* t* @7 F7 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 L2 k" w. X4 d* kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! v6 W1 d9 {8 a, Q, h- h9 zset trade-record-current lput(timer) trade-record-current
9 Y0 z% m, U# V, \. D- K" |;;评价时间
7 o# c5 ~! y! J: fask myself [
8 v. n% d5 d1 `2 V7 O9 {update-local-reputation
6 f2 z& g) g) [7 M4 E" wset trade-record-current lput([local-reputation] of myself) trade-record-current
1 i. c" c$ s* q" M]9 p5 R5 [0 o5 i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; n% u/ V0 B# [+ E4 P;;将此次交易的记录加入到trade-record-one中
8 V$ K0 z+ d4 w B6 hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): L& F2 ]. J5 S
let note (item 2 trade-record-current )
3 Y5 @8 v$ C. B' |set trade-record-current
+ `9 r! G0 h5 {+ Q(replace-item 2 trade-record-current (item 3 trade-record-current))
8 S$ N P4 O+ i' j! n8 I. ?set trade-record-current/ g1 s3 {. m1 C4 d, T& D: `& }
(replace-item 3 trade-record-current note)
3 z5 }' n& e) N3 L5 d) h0 x
A+ p) C+ d! n9 B1 w
7 i, k; o' W5 D2 l4 Vask customer [
8 b- V0 o) V0 J; i( @: O& ?update-local-reputation
) X& V5 ?, V1 O+ Z0 L. @set trade-record-current
$ S; d/ I' `, }! g: N(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 `& {, q1 H. w1 ~]9 a( k: A& N; }9 p' r$ p
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% }9 ?) A; `" Y! d S3 O7 s
- g+ d' C. ^ i1 Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" c9 B( O' R" y; E7 l: f7 b
;;将此次交易的记录加入到customer的trade-record-all中
; {% g' B& H j& C- e9 D" Eend& b' l6 ^& y9 y6 S
7 b- ]5 G* n1 B2 |
to update-local-reputation
# Z1 G3 ~$ u) b" v1 L w* yset [trade-record-one-len] of myself length [trade-record-one] of myself
* ~7 J2 _6 |5 P! f4 M% U, d2 O
# M0 b1 F9 Q& Y! ^4 w
+ Y( j/ n% L2 C B* W;;if [trade-record-one-len] of myself > 3 # p6 q+ d5 X0 A# w& Z5 M
update-neighbor-total
3 H5 x' n; _9 D8 i: i;;更新邻居节点的数目,在此进行7 E# z: Y5 j8 t% k0 P) n$ e+ A' w
let i 3
& {$ |8 o c& N) I5 N) Elet sum-time 0
. P5 I% }4 }. C$ [- d0 v2 }4 t) Hwhile[i < [trade-record-one-len] of myself]
0 R( i1 L! u: N/ d2 X[+ _. t. W, R2 o2 B3 g/ F5 } ?9 @& T1 i# \, W
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) q" b/ h u0 L8 \6 W' \set i) d5 m5 j# S0 z' a) L5 b
( i + 1)& f6 s! r) P* F5 Z* G& c
]- m% V& I( S+ m) Z; b k: G6 d! E
let j 3% i3 B: v7 H0 S4 O. q, m9 |
let sum-money 0% ^! z1 Q3 J. r/ s( T
while[j < [trade-record-one-len] of myself], U' S5 x5 E1 n0 V6 L
[" R8 }8 e6 v" r3 y+ q0 }+ E# o
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)
. W' v1 c* R8 `set j
# \- J3 `3 z/ e$ b( j + 1)" h+ P% K6 t' K9 C2 A! r; n$ a F
]6 a9 U/ P% Z1 v* K0 R& [ O/ o
let k 3+ s# b; B) z; Q: `; j9 R3 ?# l G
let power 0. ] `3 m2 f5 r; `% q9 [8 f/ j
let local 09 f% r! T- r& u3 Y
while [k <[trade-record-one-len] of myself]- ]5 d2 a# P8 S
[
8 ]; u) p5 F% `$ aset 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) 9 P( H# n% W0 Y# v; C* k
set k (k + 1)
% O* [0 ~, B2 U n9 G9 q, s] y! B6 }$ p! M
set [local-reputation] of myself (local)/ m9 y2 j" n- ~3 D
end% ~2 g- N" C4 b5 D9 I. [5 ~! D
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to update-neighbor-total, }7 \9 }- K- \3 P) l
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) C( H/ X/ S, Y+ p
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end) J9 f2 {& `+ b, f+ v
4 W7 }( @+ m, M2 sto update-credibility-ijl
$ a6 `7 j4 Z! f1 F2 }) V: V) p5 L# b. ~0 H8 {
;;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。
5 \5 ]9 l2 a" Vlet l 0. A! Q% Q: x4 ]' t. ]1 ^' e2 [, {
while[ l < people ]1 o' }; j" G D( j0 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4 V# H/ D2 W1 ]# Y
[
. Y8 V7 ?2 r, F" J. X8 y/ Nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 B4 G3 r$ I6 t' N+ ]9 L: `/ Mif (trade-record-one-j-l-len > 3)1 c' O: z$ V2 J1 [+ p- l
[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
9 Z& q$ A) e; H9 K! k ^: Mlet i 3
4 y2 g9 f! ~8 E7 T: b$ \; Q1 ?let sum-time 0% r+ Q j$ S: J- c4 H
while[i < trade-record-one-len]
) U' @) `* v# V! m6 |3 d[
$ R! J/ R8 [9 C f! \* zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% v% S- Q) V- f: T% uset i
% p$ r2 b; B4 I) _ g4 b8 y! e2 m( i + 1)! u' u; _, O/ n/ P" @
]
1 K$ Z& Y% T+ l; h9 glet credibility-i-j-l 0
" i6 t6 ~. y2 ?. J% D;;i评价(j对jl的评价)
; j- M2 _: P2 E y# ~let j 3/ G/ T+ N* H, z- s# h" h4 L- o
let k 4& v+ ]! w; c N4 z4 d' Y
while[j < trade-record-one-len]
7 }) {! i, g( r' p6 Q" b[& j% y w/ B5 x: Q; d5 R
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2 e: n' |0 c# B
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)
l% X2 R7 Q# R& l- q" Lset j
( a1 U% [- m! p5 c: K3 r2 _( j + 1)
6 h+ o/ |$ z3 q+ q& X3 L, i3 t) U]
9 E6 W$ A4 g! P& 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 ))4 I+ ], n5 W* V! a9 h
; v# x; g B7 B
1 O+ J+ d& Y( B% C+ u1 Y0 Mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 I, |. Q% H* W2 L' d9 k/ S6 e;;及时更新i对l的评价质量的评价
$ R7 k! ^1 I% H h2 cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; M; b$ [/ S/ J5 o7 R. s6 [0 }9 bset l (l + 1)8 G( F8 j& ?1 O
]
( e: D; M/ |1 P% vend
w+ H# I2 L! c& c" I1 D
) p- t) V. s( i( Z$ xto update-credibility-list& g) S0 P0 u3 H( Y* T6 u1 K* t
let i 0) f! r+ h" Z, y
while[i < people]
3 W8 c. {6 j7 R% f5 S( E[
+ W. N: n! D# s) p7 u7 llet j 0; Q$ A9 P" f/ h. V
let note 0* F3 z A! j) [- v5 O0 @. h5 x
let k 0) i3 A7 ^; I+ s( s
;;计作出过评价的邻居节点的数目% a# |0 U# @; f& Y L' Q! i
while[j < people]
" V- C7 V- R# ^' _9 P[5 e# z0 w! K: r' U
if (item j( [credibility] of turtle (i + 1)) != -1)
( a; o) ~- B# Y( }: l;;判断是否给本turtle的评价质量做出过评价的节点' |0 }. W) l, t; P; m0 x% n& u
[set note (note + item j ([credibility]of turtle (i + 1)))" C; w+ K6 F1 P5 l1 H9 e8 A$ f
;;*(exp (-(people - 2)))/(people - 2))]
1 L3 `" k4 s4 ~5 r# zset k (k + 1)* r. N! k6 i T/ W& D2 W& s7 D$ d
]
9 n. U' {. p: Q; ^) `set j (j + 1)
% o; i5 S6 f: p: j3 s]
/ T6 o- m: l9 h- O Z1 |; Oset note (note *(exp (- (1 / k)))/ k)3 l3 M) ^8 }5 Q. D5 M/ }; o' L) k3 \6 i2 k
set credibility-list (replace-item i credibility-list note)' {' H9 U7 m1 ^+ {5 K5 }
set i (i + 1). Y/ q$ l1 }( E" e
]* ]& q, C+ \! c. E
end
8 v6 \5 g* ~, }0 h9 `, @1 J2 R5 e5 i/ L3 U- `9 t; w
to update-global-reputation-list' ]4 |* R! d) |$ I/ h' k: \6 F# e
let j 09 Z0 U: y5 ^( j& o: y' ~
while[j < people]5 E: @7 P J$ D
[, p$ E; i; a' n2 [6 B
let new 0- w* g' ~ R3 e- o. \4 \1 R
;;暂存新的一个全局声誉1 R* i7 t# V! a$ M
let i 0 m6 A: E0 y" v( k
let sum-money 0 p3 c4 U6 w/ k) Y, T
let credibility-money 0
* X! E) ]/ ^: w0 ~while [i < people]
9 W; |7 c' k* n" U/ Y6 i; q& I1 L[4 U5 u" F; \ |) o- D- b
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 U+ G; u4 G: e1 }4 \8 D9 Y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) x( j) ]7 d9 E
set i (i + 1)
+ I( M% n' s: Z]8 X# V3 M1 k9 L6 G9 j5 r
let k 0
0 z: w1 o1 `7 w$ y& _- |; `let new1 0
6 T+ I, x4 g& O6 Ywhile [k < people]
7 F) ^: Y+ J C- j[. r( { Z/ E& P6 [ f
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+ `# x. M) X- N/ Z n2 A! S
set k (k + 1)
/ ]9 P$ d) ?4 ~3 p5 |3 T]3 X7 f9 h8 p* a6 x/ t0 o2 |4 K
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! v& i# k. C5 k2 ^: cset global-reputation-list (replace-item j global-reputation-list new)
0 q$ q9 e+ p2 |! I' M3 d- rset j (j + 1)
$ Z6 X9 h: J0 P, T/ Y5 P. L% W]
* P( l% ^9 d- |) J* fend* }& R3 Z$ v" l3 E; u
3 B1 _. ^8 w( D. l; @
% F# G8 ]3 D/ p
. `, i- F3 w/ r* ^& Q: c# Hto get-color/ F: T% T8 {& n/ o! W
c! ^- K/ l% H7 H
set color blue$ r% g2 I8 b% D4 j8 E( t8 N
end3 D/ A" i& t5 Y" s$ C
F( i; |) I: d4 k+ |
to poll-class
1 E, T+ X/ l: d( K$ i$ ]end
5 S$ L) R& d3 I) h
8 g) e9 \7 ^1 x% sto setup-plot1" V( ]4 W) Z" `/ q) r* P
8 \; F' |2 @' \ U0 l5 ^! X# T6 iset-current-plot "Trends-of-Local-reputation"
1 c' X# S; X2 Q
: U3 T: ?+ R. M; s6 Oset-plot-x-range 0 xmax, \, E' G: U3 l2 H; G$ o& P4 \
) C( {- Q# |) ]* P
set-plot-y-range 0.0 ymax ~# g1 l) D2 C6 u
end7 w. _ N3 J z
: b6 s& U4 q, Oto setup-plot2
+ t% Z" {3 Z, B6 E+ z
5 s; e& i% g) F- uset-current-plot "Trends-of-global-reputation"' V4 q8 t7 |' W. Q" I1 s
' [# x! C+ O5 P+ m& a9 d% B! A Y. G
set-plot-x-range 0 xmax1 f+ x- Q+ B) y$ }; J0 W
$ g1 M5 @9 c& R$ F* C
set-plot-y-range 0.0 ymax, W6 ^! G+ V$ \2 z w- |
end* K) t+ r; Y" N; U, d0 Z
" a* X$ V; P9 bto setup-plot3
1 C& F$ q' Z9 g! m- P- t- B* ~( [/ o6 W
set-current-plot "Trends-of-credibility"
/ k0 a2 e* \6 G
% Q+ Y; e8 ~" g$ e. u2 X8 S4 H6 fset-plot-x-range 0 xmax+ l4 }7 d/ [% _% ?/ x
' t2 Q5 q- X$ M" yset-plot-y-range 0.0 ymax
2 `( E3 q- x! }( w4 n, nend
( R" |8 q3 c% [$ b
~7 D3 h4 h1 }) @% Q4 ?2 Z9 Oto do-plots' d4 A; }7 d4 F
set-current-plot "Trends-of-Local-reputation"& q: x, y- ], t" j4 w) u6 Z
set-current-plot-pen "Honest service"3 F0 Z) i4 X& W' b* T" m
end
2 `+ o' v% h* n A3 X2 O" u" ^3 B* m, q+ V) k, ?& N: ]7 D* v( I) d; D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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