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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' l1 p A2 Y: x: @- c! L
globals[
$ F6 O+ J8 d; Y2 Fxmax+ J9 m! B3 W# W4 i
ymax- z2 p7 a* z6 H
global-reputation-list
* Y, b, _- z" S7 k& H- f% ? y
7 _! s* Y- r \8 O4 D5 X;;每一个turtle的全局声誉都存在此LIST中
" |, ^* [: `9 c! Q! z, F7 Wcredibility-list* C1 r8 j1 X4 C; l ^4 a7 S8 O
;;每一个turtle的评价可信度
: p* F0 s0 c& x& J8 o* Z! n( W) xhonest-service; ?& Q$ R1 p8 s/ H) |. O
unhonest-service7 |3 E5 B0 Y- e& F+ s8 @% @* m
oscillation$ G w, ^* I. ^# ^7 v! `' [' H' t" y1 h
rand-dynamic. y( U& B5 W6 ?; \5 E9 h
]' A1 }! h2 n K0 V. T2 p
5 C3 \0 P' o+ |% z5 {+ Gturtles-own[
4 y/ |! Y; m, w" S: m$ _trade-record-all5 ~4 h& G, y3 C3 v. S
;;a list of lists,由trade-record-one组成; l: g* M0 c% h; g
trade-record-one
1 d8 ], j! y. g3 K5 H% u* O;;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 N& T. o2 p& y+ d. O5 U8 X* n* d; s# k1 \: _: f. 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]]8 E4 r" M" X- Y- X
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]% a g. L- p/ ?4 r8 K
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* L6 |3 s. `, l9 ^" F7 T. y4 p- Y& H
neighbor-total
/ ?9 k/ F$ V k; D/ v# `;;记录该turtle的邻居节点的数目
- }3 f) c$ X7 u2 q5 b* ~trade-time: K! q) o( o0 e7 ?2 \, j$ ?; v) |
;;当前发生交易的turtle的交易时间
: V6 ^0 V& G* pappraise-give5 S* X4 C V! @
;;当前发生交易时给出的评价
( y9 ], X! Z) _: i$ J& Mappraise-receive- K0 U, \5 B' ]
;;当前发生交易时收到的评价1 C% j1 ~1 O( g8 `8 z
appraise-time
4 [4 N" t0 Y3 f, ~ H;;当前发生交易时的评价时间: z% L r, J/ d/ U- K7 I
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" z9 D- `/ O2 W7 m8 E7 }trade-times-total
/ F1 W0 X7 N) ];;与当前turtle的交易总次数
1 L/ a% Q3 e. l. O6 `6 Otrade-money-total+ ?3 r1 d0 y$ N# k% Z0 r) j
;;与当前turtle的交易总金额
8 v3 Q V' O0 ]% y6 ]local-reputation/ X! R* w$ m; H
global-reputation
0 c( N% e# c1 ?1 [1 Mcredibility) g @; V. G# R0 |5 n. D
;;评价可信度,每次交易后都需要更新
0 h- W- A! g* y2 a5 c2 hcredibility-all/ y: \* X- f& A2 t$ z
;;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. [, w, B, ]8 R$ t' J
- A8 s4 A4 s$ T: p2 w;;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. |) C) |9 B* c% t
credibility-one
8 A$ L+ N* [9 f7 r* K- @) j;;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
) [" }# Q! _8 C- Jglobal-proportion
; T$ o+ ^5 u( m# D9 fcustomer3 J3 a0 O. @- r: _; F6 n- E
customer-no
/ F( j: V2 \9 [, J+ f7 jtrust-ok
6 ?% H; @8 ]9 f3 F" e7 ~. S+ M) qtrade-record-one-len;;trade-record-one的长度- A% R. G8 y- ]5 |3 M$ f
]
7 E) |+ s v2 f2 ^, u4 M- M" _$ \
2 Y* J0 q) d4 t3 C;;setup procedure
/ \7 t; y1 `3 K; D- \" G* S
0 \7 b: U$ }1 {9 z$ |; Zto setup) W/ q) S E2 v5 [$ o6 q1 P9 L; x
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ca' z$ B/ ^3 P$ k6 h& x% s
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initialize-settings9 x, P2 Y' `; Z' N
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crt people [setup-turtles]
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" ~; L! I0 f- @' Ireset-timer& W+ r0 i: x4 ^! y; [ z7 W/ k6 U' L; P
' J. v8 d. c. @9 I! K" Spoll-class
- u* F* ?8 R1 ~: c
( J, W. ^9 U9 k; W3 Nsetup-plots
! U# H, O! p, S a; |; R9 P' p: \" U: i K" n0 A6 m( O0 s8 k$ v8 Y6 [
do-plots
* o# e2 J& u, ~0 }+ ?end: n6 D& e: @* z6 b9 u2 t( e% {
% N# s' @! O1 M* B) v- c* qto initialize-settings
+ x; ]9 g! Z) S9 U; d* P5 a0 {
0 ?$ x3 I! L+ h, vset global-reputation-list []
0 n3 h) F! k, |! c
- P; u! H, P3 X8 c4 Eset credibility-list n-values people [0.5]
7 n5 ] p: D* g" n6 o
3 N' K+ R; |; f0 n! P6 L& {$ K& \/ cset honest-service 0 P N( M9 h+ b8 i6 {
$ H* ^- v ~! t1 d# c t) _4 ~set unhonest-service 0" t2 s" P6 G+ c6 d2 D1 L! k
; R0 F0 f: ]. G; }set oscillation 0* J" D- ^+ W+ z
- G4 E0 n0 k! g; T' ~set rand-dynamic 0/ a7 @% ~# y D- O, ]% M
end
$ s6 P* ^! p0 s# W% p$ _& D- A: J0 l' O; Q, c! N
to setup-turtles
5 B/ G6 ^/ X3 J1 vset shape "person"/ U' K* {# x2 |' F4 K
setxy random-xcor random-ycor) E. }& }8 h) x7 X- H# h5 O+ E; y& D E
set trade-record-one []
. L4 U, \4 \* ]* B9 \) j9 h
4 |4 b6 A, W, U$ G. Lset trade-record-all n-values people [(list (? + 1) 0 0)]
+ K. ~; j. i2 T$ r7 A: w
$ T* D. o$ H0 [( s# K' dset trade-record-current []* i- l" I+ |$ l' H$ W
set credibility-receive []6 P4 m% O6 g; s/ [# I" F; {
set local-reputation 0.5; X8 X. w, `1 e$ C$ n9 ^ ^
set neighbor-total 0
* B! l' \* u/ x/ D" \8 Sset trade-times-total 0
1 Q: R7 J$ f! Jset trade-money-total 04 _% f6 Z, _: }1 D- ^) p
set customer nobody% D O; L2 m _: S/ q* Q
set credibility-all n-values people [creat-credibility]
$ p3 o3 }4 j, r' J# G Tset credibility n-values people [-1]
) j& n7 i) Y% e: u7 x$ v: ]get-color
8 ?" d8 X* R y) |0 O9 k/ G) k8 P9 F( [7 R
end
* S$ C9 ~3 c f# @
% c$ \- B: w! }) B. pto-report creat-credibility" ^, O* n) o* L* L! \
report n-values people [0.5]
3 n3 G. }' h* }4 q( Nend. P l+ Z1 F1 Q# p
* j1 p& f9 {/ K& i
to setup-plots* ~& D" R. M7 F! u3 }
3 V5 V' e3 Z9 E! {. sset xmax 30. S1 B+ w4 C. v( h# c- b
+ W! m7 A2 Z$ ~' u* Z' X2 ^set ymax 1.0
5 ^5 T8 j+ W0 `) Q/ w; P- Z, P! M
- ]0 i5 n) o- {4 m9 s$ tclear-all-plots( Z9 f1 y$ S+ ]5 I' s
2 I- c* G/ X0 t" r- j6 msetup-plot1
# U0 _8 ]$ W* [* ]% \# L
( y" @" y) K1 ?' U$ I$ ^setup-plot27 g9 t. h+ }& s. h3 W
3 s% ^" b2 }; `! W$ j
setup-plot3# K8 p& ~8 J% D S* {+ u# R
end
# }) [, k5 `. [8 a" n" m$ N1 R7 D" u
. H9 c( P E0 Z, ~% n/ H9 I;;run time procedures
1 H* v P& Z+ \+ I7 k3 ]' Q1 Y9 E7 [' Q$ @# {( v
to go
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) v, s1 z+ g% j% |! e4 {% wask turtles [do-business]
# q" y7 W3 z0 ~) C+ rend
2 ], W. p' o" G* G
5 A! _$ E$ T6 c) T: w! c. Gto do-business 5 Y1 h- o B' X
6 X: ^ P3 S+ f' ~+ i7 [
' m+ z0 _* t5 G* r! E8 Q+ }+ C+ o* }rt random 360
8 m5 r+ e3 Q3 \
0 Z: G# ]7 b: }% F" tfd 1# A/ t' |! i: L
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ifelse(other turtles-here != nobody)[
, r3 Z0 i/ K" i7 E6 X' W. E
8 a: O- B- T! [+ ~set customer one-of other turtles-here
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! D5 }# N3 {# _3 a! T" l) k' _;; set [customer] of customer myself' ^1 U% k( L: }% M- o
1 y/ s# V: x: \1 A" K+ Zset [trade-record-one] of self item (([who] of customer) - 1)
8 D: n0 q+ |2 H$ v* Q/ }+ t[trade-record-all]of self- X; W. Z2 k" \) |' Q6 o9 b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 R- d$ }5 O* l% e
. i! B+ d1 m4 v: G( B Jset [trade-record-one] of customer item (([who] of self) - 1)4 D4 i3 [ r7 c0 ^3 O) N. G# k4 B
[trade-record-all]of customer
/ ]& z' e1 J5 u! W7 s
5 |+ I+ j. o/ Wset [trade-record-one-len] of self length [trade-record-one] of self
# L2 g% Y% v. X& S5 F+ ]( D/ f
0 z7 R4 h0 m4 Z& v, r9 N! c# Nset trade-record-current( list (timer) (random money-upper-limit))
: G! \7 c! l! I: I# F* k
7 L$ v: j* o' O( jask self [do-trust]
, o- Y" z) |( J+ q;;先求i对j的信任度
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if ([trust-ok] of self). c8 c4 t5 G% S4 h! q" X( {7 z
;;根据i对j的信任度来决定是否与j进行交易[
& ^& O$ f- R# f5 q5 |5 jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; F; F& ?" r; B" h% Z
/ i& H+ A- a" M. r[
1 V8 g* O' _9 Z( Y' ` X% D. |! K5 [0 R, t5 ?
do-trade4 \ J$ A0 F- p, b; X
, ^. T0 a. e, e7 H3 [
update-credibility-ijl
1 ?- `1 V. d& R5 C E6 I7 J! F4 m' ^6 q6 d0 F
update-credibility-list
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/ Q2 {! X* d: n; I1 ^
update-global-reputation-list8 ]( ^) P4 _0 j
( S5 V' K) P# S" v
poll-class6 a8 U- T9 G3 V |
1 J- y- l# J* c( L$ e( i0 w% x
get-color. C( i6 U# c$ U7 e y
! r5 |" |+ t6 @+ w! z+ f. E]]
% K; `+ o& }& g1 B0 u7 B" o. t2 M* E3 u' P+ L8 W* W2 h; x2 _( n
;;如果所得的信任度满足条件,则进行交易
! {& `4 ]) c3 }/ ] Q$ A1 k( p, @2 z3 y8 E
[7 t7 f' P! Z* v. |2 x V) [
7 U* ?3 I! k; d9 Hrt random 3605 m# T- h6 {0 E- }- |
6 L( s7 a4 H" i& x
fd 1, O- i' N, G4 z+ u
6 I4 A: r) C4 x! G& ~ p6 \+ r]! v0 T. X1 N4 |* ^% z) W" g2 ?. v
, g ]' y0 n6 {2 ~$ }+ mend
6 J* Y, X2 H) i. e) f" @5 c" U& m# X- Z. x! n. ~* O
to do-trust $ b8 f. G: D9 R. V" g5 `$ O
set trust-ok False/ J- o' E4 O2 v" T; D
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let max-trade-times 0 x: [* I2 c# V1 I. F) r1 O
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ i, ?$ Z- z% ], klet max-trade-money 0) X5 z, Q) s! l% @) m) {
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. X( d, [3 J! s) W3 D4 Z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
: \' J& }% a' N4 {6 L' Q
6 H( D) p! p& w L5 {7 l2 Z: l g' z( B' \) ? V; [% Y- H
get-global-proportion
5 B+ f! \9 Z4 ^& C4 m9 Rlet trust-value% T* h, U, }9 C; Z
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)' N3 _! G/ V( A% e
if(trust-value > trade-trust-value)
1 ]* s" N7 Y5 [$ e3 V; X+ l9 x[set trust-ok true]5 m3 I$ E. _9 |
end8 W4 ~3 \' E$ G- Q7 R8 @7 e% x7 C
# Y9 U. v/ S, c
to get-global-proportion- G; A/ R8 a# @; l2 X5 i
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! q1 g/ S$ K- O9 M9 }
[set global-proportion 0]
) P: w9 _4 m+ e3 |[let i 0
. r/ b3 F7 G2 Blet sum-money 0
$ I z2 V; @; @& t. K0 [while[ i < people]( H7 n* p1 a* \
[
u- m, E x# d! P6 l, tif( length (item i- _* M% _3 a3 w) [( D y% s u
[trade-record-all] of customer) > 3 )7 S' ~/ @# \/ C% t9 b- ~6 p) F! j
[
6 ~, \- C' N0 q. jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))# p; N5 W: v9 @+ Y
]+ }# _$ x- G; R, R [
]( W( i4 ^% t: x: o
let j 0
1 B: F0 ?- t# Q5 ]let note 0; e* {; {; D% q
while[ j < people]
$ \* p5 N" D7 Z( `) o5 e+ N1 `[
. r8 T0 A! a- Z. lif( length (item i5 }+ D, m0 N$ k
[trade-record-all] of customer) > 3 )
: O# a- v2 g3 o; @. P0 u A[4 G5 f; y9 Q; ?: f4 X9 L2 h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( z7 c- {' K$ p. v
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 u% G# U: s5 A3 g6 \, P* I
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 i3 D B8 z( ]
]
7 h# {/ p: [2 M" z; d, Z/ \8 u" ]], E. R1 {0 M" Q- S: u) I# M3 G# O
set global-proportion note: ~2 x9 R v1 w! P- a( E
]& @3 t8 C5 }2 y! a7 B% u" }
end
7 j) s) c% j8 p8 b* Z+ ]9 g+ Z2 [ t2 m
to do-trade9 y) @4 J6 V! m, ^: K
;;这个过程实际上是给双方作出评价的过程
! z" Z6 _% }( Q* S$ D2 W7 t" cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, I5 y* t1 W4 ^2 _* t+ _7 hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. r6 W+ P2 f* ^9 K) G# ~set trade-record-current lput(timer) trade-record-current; H2 c$ Q4 f$ j/ p/ r# _2 X
;;评价时间# `, K) \ h4 W' N* I7 `
ask myself [) H, v, _# D- L8 ?* A
update-local-reputation1 }- D, d( |- H+ T, ?
set trade-record-current lput([local-reputation] of myself) trade-record-current
# m* Q" W, s, g( }+ ^: `: W]
: W8 W2 |; [; M4 n/ G) jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 b* l. t; g9 g; ]. Z; f7 J9 |' ~3 [;;将此次交易的记录加入到trade-record-one中$ b2 ~, C' i+ p" H: {/ L+ X
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 n$ m; O3 g/ g1 O8 U( L# s
let note (item 2 trade-record-current )
/ r: z' ]9 j, \% _: {0 eset trade-record-current& _( C! R, X- m! @- D1 e4 A2 I& F
(replace-item 2 trade-record-current (item 3 trade-record-current))! f. ~* [: n2 z+ r2 {
set trade-record-current
/ [1 c. U' k$ x u) D! m) c& |6 G(replace-item 3 trade-record-current note)
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- N) d1 e9 U! ~
! H' Y4 }4 J2 |# F$ l1 Wask customer [
+ t( H d. [. K) b, {+ [update-local-reputation6 [( u2 d0 t l2 ^8 a, ~
set trade-record-current
: n: c8 I9 s& j6 \(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % \7 N3 C, W9 F' D4 q! c' G
]7 C$ L& i8 O" ?/ R* X: W
$ A5 d) d9 r; t; T. S
$ h: [* X; }9 d4 S. \( \9 nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* Y6 O2 j F' g* ^$ F
;;将此次交易的记录加入到customer的trade-record-all中
* c+ i2 P& {# Z3 z, n: L1 Uend2 H5 c1 q/ ^2 f. L; T
% Z% z. o1 A% j$ f5 ^
to update-local-reputation
P/ \6 u9 d* a, t Cset [trade-record-one-len] of myself length [trade-record-one] of myself3 H8 D! I8 p8 z0 P; R4 q
* H/ h) R8 ~6 x1 F) L7 m' s) F' M
6 w! F; c! A e$ g$ w( V
;;if [trade-record-one-len] of myself > 3 6 b- ^2 e/ |0 D D
update-neighbor-total: M9 Y* O2 h, z) _$ `, o
;;更新邻居节点的数目,在此进行
0 o5 s% D0 ~4 T% E t, c! [let i 3+ Y W6 i0 G; W5 y
let sum-time 0( |3 Y( {1 p. O
while[i < [trade-record-one-len] of myself]0 Z. M/ C. J$ A8 ~
[
: T! m2 M, i! T7 `8 Lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 I5 d0 F& {( w# d5 Q1 M- b
set i
/ J. ~# J4 R% P8 K% b& ~( i + 1)
8 v. ]" O- j' z2 S* d! Y& T]. }; ]! i+ N8 B. ^7 _+ P
let j 3
- V0 _5 a! @ _$ _1 R% j1 i Wlet sum-money 0/ ^+ z4 m8 W3 H) X& C7 X
while[j < [trade-record-one-len] of myself]4 @% i# s: k- I* u% n
[; O0 A: E9 |8 u5 F- v: C0 D% [
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) r( c; X, r; g6 {- v3 O* H: j% v
set j( h4 G2 O! ]1 H6 g: ^" `. e0 l
( j + 1): ~) j4 d( k' {! K: k( ~
]
9 N* ?5 a4 d$ x; L% X! y8 b7 slet k 3
# S; d, E8 U w$ _$ P H) vlet power 02 Z3 A i/ ]. x) [* D) V
let local 08 e+ ^5 s: r" y8 M! O( j9 o6 ?
while [k <[trade-record-one-len] of myself]
( k! r( q/ \( x6 F[( |, k& S% \3 n: D G' g0 `8 o
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)
+ `5 Q- W: w& s) v* ^set k (k + 1)
& A4 j O" ` F( d]
+ z, U( K2 T1 T5 y& _; Pset [local-reputation] of myself (local)
/ w# [+ x L8 M) vend
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1 H8 b4 b7 {$ y( L. h. f. [; Oto update-neighbor-total5 D; }, ~* |: f s
^5 r7 E' a8 {6 }
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
i3 `* m* v' Q* G: Q N! W' I+ M$ D( X; `
to update-credibility-ijl / r d8 b" d$ E1 ]
9 E$ U3 Y& [' _
;;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。$ ]' M; n5 e6 x, ]0 |+ W. h9 T
let l 0 n& N' |0 {* Z" i
while[ l < people ]6 l+ n+ o6 H# {- n2 o/ U* \
;;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/ t, X& |3 u/ @( d# @' h
[# ]9 q D1 n4 a( N9 T
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 y' v1 K9 T" G6 Z0 q+ Cif (trade-record-one-j-l-len > 3)! j6 F! ?- n j6 @' E( ]' w0 {6 z
[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) C1 Z, M" { s
let i 3
$ }" t4 a$ B& Xlet sum-time 0) k# B3 k( a$ H; F @
while[i < trade-record-one-len]
* f9 k. j; L* U, x, f( N3 C[
2 d& {" k- N/ D' a& G* fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 ~, y `9 l1 q p* Z# L# _( c* ?
set i: U6 W) A- f1 x) h3 h! s, w
( i + 1)* v! d4 K/ L# k1 K
]
# L* d4 ^% Q4 W$ i5 n$ p( b klet credibility-i-j-l 0, ?6 p9 h0 S H8 [
;;i评价(j对jl的评价)
: O8 {' w9 Z5 L) ]5 \let j 32 ]- o6 g9 v. i* ?/ i! n- X
let k 4' ?; x" r2 U. N/ q( r4 C
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" B! P' _: k, t, h% `! q8 r! o
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), u' o* n8 V. _+ [
set j
* K; ]' u. o i: x" q8 d4 ^2 q7 l Y: ]4 J( j + 1)
# k2 G) V' U+ V% S]
" F) u) V- p8 ^2 Yset [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 ))
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9 s& T, [, R. l7 T" Z8 F9 ?, q3 vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) T9 b9 X- K) h) N* n
;;及时更新i对l的评价质量的评价
" m% Y% E6 R5 r1 ]6 b# @" B# fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- z2 ?- a6 p7 y3 l+ }
set l (l + 1)
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! v, o3 t! z3 i* l8 U* Qend
) k' w n! U2 m& w5 Q3 ^' H0 ~% [/ J9 q J$ P0 F& W
to update-credibility-list
4 i/ V2 N% G$ z8 u/ t2 glet i 0$ z3 V! g* m- ^7 H4 A$ c3 u. J
while[i < people]
- z4 Z: N3 y. e, P# c; E2 H[
9 Y" Y2 O" A) klet j 0
+ A1 M& j/ o$ t$ x8 p- Klet note 0% w. K5 `# o) A' ] d) `: ]8 Y5 s
let k 0
4 c/ N1 a# ~- @& o8 n; i/ c5 u;;计作出过评价的邻居节点的数目 N2 B7 R1 K: G! o1 `0 \) K
while[j < people]8 H# G; a, d% {- P$ q" [( @
[
1 |; X, y1 P* ?2 ~9 j4 R( Nif (item j( [credibility] of turtle (i + 1)) != -1)
4 n* s; B" V6 C' \;;判断是否给本turtle的评价质量做出过评价的节点2 y' \; F) O% D4 R/ D
[set note (note + item j ([credibility]of turtle (i + 1)))5 ]$ C: j3 a( O" r4 e
;;*(exp (-(people - 2)))/(people - 2))]
% y8 P" v/ b1 Kset k (k + 1)% ` ?) j2 c% ]0 Q3 ^! U; z
]: o+ R8 k5 ~0 G- E
set j (j + 1)( H, K* m0 x5 s# t
]
* `/ l/ r4 l. \* Q0 q7 k# Dset note (note *(exp (- (1 / k)))/ k)
( W9 v! x5 X0 f! Sset credibility-list (replace-item i credibility-list note)
; ]/ |' m y" A' l2 u C5 yset i (i + 1)
/ W% D# F7 k& D2 x& N], p2 o6 w, P. U/ a' i" e1 e# r
end
2 j0 S1 _" J ]" c/ ^
' p' S B; S' { Eto update-global-reputation-list6 M' r+ Q! d. s2 J Q3 m
let j 0
/ |& w- {1 H d! [( s2 l! H/ n; A8 Mwhile[j < people]" |; ?3 i& l" B% T+ L' U. A
[
( k, k# {3 r: T' {; m3 l6 ^9 o3 ]- \let new 0/ L4 y& y, S: Z2 d; @
;;暂存新的一个全局声誉
2 j3 j$ R- O6 W! wlet i 0( _" {; T& ]- [) J% d K. b
let sum-money 0
6 \6 H: |( @+ g0 u2 j! klet credibility-money 0/ j, e* A- p% Y# a$ l/ y
while [i < people]
: I6 k t* J( s[# o- `9 Y: W2 p5 K d
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 ~% m. Y* U# p( k! E+ ~1 H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" i+ ?' K( q. b6 p# Z" T
set i (i + 1)
9 m8 f6 }3 q& T, ?- v* f3 O8 O]
5 Y, v5 A4 V6 l8 Z0 ]- [. Llet k 0
1 b0 k+ _, w. s% Y3 rlet new1 0
3 ^3 _! F/ A. Q7 cwhile [k < people]% w. |& s: ^8 x7 Z0 R
[
; g9 h+ G) x0 n% v! Lset 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)
" I, q' ?/ Z, m" V0 Q, k8 i. M3 \set k (k + 1)( w; A( ]9 t( M+ V: O( p
]5 t( N+ g: `+ o
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 G$ G5 N, j9 n# Y# F* Z( Lset global-reputation-list (replace-item j global-reputation-list new)
' u! J, P* U v) B( K2 v, _. pset j (j + 1)' m% f; W7 X/ c8 m1 [6 l
]
3 ?) z' s# J$ [# a7 r3 G4 eend
1 ]9 e' r/ d/ ]- `
8 j% n# y. k; F9 n: w- B0 p. r! } }/ P H* I; a4 v$ Z& y8 Z# ~3 ]
) H3 ?8 k# o1 u, [. D! L6 ^
to get-color* @; T2 c( q) J0 T% c' }1 V
* T6 R2 I$ Q$ S" W5 C; ]set color blue/ e* l8 L! U4 O
end6 V; ]1 M7 x0 s- ^: T
1 C$ u/ c8 |, _0 \7 z! Oto poll-class
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! R4 T6 s1 [8 b
to setup-plot1
5 J, Y- p# N( F5 w$ I
2 r" D: C5 V9 _$ q5 Qset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
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0 Q7 l0 w- W8 R: G- oset-plot-y-range 0.0 ymax' m. n3 l: Y- @6 ~
end
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to setup-plot28 d4 {& ^0 O( X
0 d2 a* l% \: P( C* Q; h. m( {$ E8 [set-current-plot "Trends-of-global-reputation"0 g' { E/ M( \' V
. Q }; ]; a, d8 K7 K9 g X0 F; Dset-plot-x-range 0 xmax9 |+ f* r1 j7 l
}: x: }& ^8 g. K3 }; O" o+ }
set-plot-y-range 0.0 ymax6 x$ c- E F" h& l
end
5 m3 s0 i/ m" h+ ?4 j# T6 y& M3 L8 T% D( J( d. d. t. T+ c: z
to setup-plot3" j+ f5 P. A& \* P- E
* e( l7 t' E/ S3 Y. P3 j* tset-current-plot "Trends-of-credibility"
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: i% y# b+ c5 J+ zset-plot-x-range 0 xmax
. `3 k ?& H+ j* o7 a, b5 |) S% K% e0 t! Q; h* R% K B& ?# g, X
set-plot-y-range 0.0 ymax7 F& X! N. q; v- z) U* Q7 a
end
% @/ s) z+ W7 Y0 Y5 ?: G; F: w
to do-plots
4 I0 b+ f* `3 Q' z! Xset-current-plot "Trends-of-Local-reputation"
* j+ \; v* V/ K) S1 K: N# W; sset-current-plot-pen "Honest service"& p. I. w& {+ M/ z+ P. o
end* e2 |& O6 n5 N4 z) w4 v
8 T( k& m, j( B8 Q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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