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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
0 B5 G& ^& I1 x+ Eglobals[
, l) U3 o6 A2 K+ N" Sxmax- _7 d g8 v* h% J2 N" _
ymax
4 j# m T8 \9 c9 L- E+ gglobal-reputation-list
% U* i5 w5 {, L: d* y9 ~" r- ~0 c& s* Q
;;每一个turtle的全局声誉都存在此LIST中
$ H& y* r( W; a6 h/ zcredibility-list
1 O; E) z6 c' Q/ m8 C a0 r;;每一个turtle的评价可信度
& U5 k5 m, Y2 a# h4 o8 Ahonest-service' {7 P7 `( u, l
unhonest-service7 ~ V5 \* s4 B9 |3 h& M* P
oscillation9 w* T7 I7 N; Y# \# E% K
rand-dynamic8 z. T' q! |1 }7 H3 B
]
& \: q3 \" W# f. ?' S* {# [* G+ ?7 E) [3 g: K* G0 F8 [$ {
turtles-own[
0 H" f- l6 Q& }) A9 S- [ v3 jtrade-record-all8 V$ \8 s1 D; b! Y
;;a list of lists,由trade-record-one组成* b2 X8 \2 i& c& \( @
trade-record-one; f j$ {) R' x1 N P( ~3 d% ^( y
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# D# M* g- \5 x" X% w0 _
0 I5 }& s$ {' S; ?. e
;;[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]]1 T+ T1 L- Z s- }8 o
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]
7 _7 b+ `4 @6 ~( Y: W+ t( 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
, S$ I; \/ ~4 v; d4 {9 f) oneighbor-total7 _$ X1 a+ V: M1 @- h2 D6 g1 x6 F" I
;;记录该turtle的邻居节点的数目
1 J2 [6 m# d# i* Otrade-time& c( p7 z1 ~; I# a
;;当前发生交易的turtle的交易时间1 }: q4 A( C+ B. E6 L
appraise-give
7 E7 l1 I K5 w6 J$ u* e8 ^0 m;;当前发生交易时给出的评价6 a( N, {" R) E1 @
appraise-receive% e5 [ ]1 U' G) C% j
;;当前发生交易时收到的评价
2 N# m" m* f6 M6 ~$ Y8 A0 ^& vappraise-time
5 M$ Y. N" H6 d4 C" [8 m;;当前发生交易时的评价时间
/ k4 T* ]/ X2 O" L0 t9 nlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 N; N* D9 b) C( ~) l# Btrade-times-total
- ]& g( G1 v/ e: T8 C;;与当前turtle的交易总次数# E2 ^9 j& r8 \' ~
trade-money-total0 d) W0 _7 C0 L1 B5 t+ q; G' p
;;与当前turtle的交易总金额
% X8 p! i5 f% C# u: e- A2 @# V/ Dlocal-reputation
{9 K4 n4 v. rglobal-reputation
1 I. i+ Z6 t& K8 l# |: Ecredibility
; x) s3 s* ]4 r# v K;;评价可信度,每次交易后都需要更新' O! X2 Q8 t6 u* H2 O- b8 a
credibility-all1 O7 S* J" Z. s" X2 D5 C
;;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
2 Z& f2 [# k$ V5 O$ L$ Y1 b0 s4 p% d4 l/ Q# D7 @# Q9 A( _# X' S
;;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0.53 @( ~# M9 `. m+ b9 y) @* B
credibility-one
2 s* ]/ E3 o. T; e; U; z2 n" 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' w+ \+ @' b" Q" c y5 v: f( h4 G
global-proportion
$ T7 {2 F2 Q4 l2 f- I J+ F: ?, A/ Scustomer
# L! K; Q& o7 M! Wcustomer-no- a6 t* o9 w/ ]; O) D
trust-ok
; R3 O( K8 v) Utrade-record-one-len;;trade-record-one的长度. |7 ]3 l5 h. G, G5 z b- H
]2 d. s- K. x( w9 S- V6 Z) n" Z2 z
& r. ^/ {( a5 G/ Q; h' Z;;setup procedure" D8 g% ?: f. @. c/ j& \$ q6 P
5 B+ T3 g6 F" f6 `' a' ~4 [+ rto setup; a- @8 V2 `, H0 z% U
Q% Q; [7 t5 P9 qca& F [+ s' J, ?( W4 R
6 n, i: t+ J% Z2 |% I
initialize-settings( T7 q6 P# b( @, l" i2 `7 N( R
, Z# D( X' F% v2 g- \: T
crt people [setup-turtles]/ T. p+ G6 a5 d: }% P
' l+ I. j* R5 @+ E
reset-timer
- d9 u# e! q) w4 l; y4 O- v- r2 a3 y
poll-class
: p0 g7 W6 m3 J
q; E8 \9 j6 c; |setup-plots! O' F9 u5 S( N/ n
. I& {8 E! D9 |1 q0 L2 }1 ido-plots
2 T% Q. Y" U1 q7 Q+ H% vend) r: U: y2 H& a: }7 t$ V4 \
+ N. d3 G5 J& W" h+ }
to initialize-settings
# N: M& p( y5 E2 [3 m5 L" d8 O4 i: v. S2 _
set global-reputation-list []$ p" J1 @+ V; V- o" a q- i3 {6 G
b8 s. c: a4 m9 _% T+ Xset credibility-list n-values people [0.5]' d2 H" K" }# _; T5 H1 E! {' O
- k: U t; h1 h4 a9 w0 k2 m
set honest-service 0% E* P7 ~' i9 s
2 [) g. S, ]. _& Xset unhonest-service 0
q3 D- k9 {8 d6 ~
! J" s+ r; `. qset oscillation 0( T7 }* k" b& `$ M1 Q8 E
f* h$ H! {; nset rand-dynamic 0
/ J* p! t. n, M! ]5 G' mend4 a: _. @! j; K2 ^9 a
; ]; r" ^, j% ^2 D. @, i' a, w% oto setup-turtles ; g' J! `( b) L& v$ ^4 B) v
set shape "person"
6 F5 L! r+ O5 u& L, x) `setxy random-xcor random-ycor
; O& h8 q n% N6 B2 b5 q/ eset trade-record-one []
! ]' R# e; h- a0 W; V v2 E2 B9 i2 P/ d% K+ \6 }
set trade-record-all n-values people [(list (? + 1) 0 0)]
: s* u+ ^" V! d. P: }7 o
0 O' a' L( {, t3 m3 gset trade-record-current []) X' S1 U; |3 I/ F2 W3 Z
set credibility-receive []
$ f, A& }( V( ^6 ^set local-reputation 0.58 M* g; h9 F6 P1 \% ?
set neighbor-total 0' L& e! S9 e7 q
set trade-times-total 0
* [5 h' y7 o$ C, Jset trade-money-total 0% J0 P8 [! u' J4 T, V
set customer nobody
, p* j7 p4 G& H5 `& L) C2 J* d* vset credibility-all n-values people [creat-credibility]
( D$ z9 y! b- q& B' Y1 W( Aset credibility n-values people [-1]
' y/ B" q; r( F4 J) h1 W$ R8 v- Iget-color& l1 b/ E0 e' P' |6 C4 ^, b
& }6 ~1 F( w2 y: O
end
7 ^) X3 `8 z7 z+ W/ d R; C1 \6 v- ]/ [
: Q5 h$ r. ]# N$ R5 p+ c6 J7 ~4 h! I7 jto-report creat-credibility: d3 i8 c% d( e+ M$ x3 q' O3 ~
report n-values people [0.5]/ M5 h$ Z+ m. q m a8 j+ f
end
5 E# e% Y% r% w- M0 }
\* r }2 t7 a. i8 Oto setup-plots
2 {# i, [8 x, J& z. V
! P; S' Q0 k8 }7 J" }% ^set xmax 30 U9 I# m( _! J8 O
/ J4 z8 s" `( T) X% e! q" cset ymax 1.0
+ U a! w# L- T8 |
8 Z% a! t4 T2 W8 b) w: nclear-all-plots$ U$ n- C' f7 ~: V1 ^/ o
1 n2 B0 v) a$ k+ ^setup-plot1# _' U+ W; q0 l) f8 x1 W: m
; E9 S! S7 X9 }; Q
setup-plot25 a& M) v# P" {' g j
5 b0 n: }* ^7 h5 @
setup-plot3
# _9 I" Z6 w6 X; k9 N! R7 q1 G oend' B, B p1 W' p" }4 ?& ?% d( c( \& B2 Z* Y
) v' X9 ]% c0 N8 }. L P4 u. U;;run time procedures
0 Z1 |- r6 y1 [4 d
5 k o( ~& i6 V# s; S9 xto go
; J7 k' V$ u- A( n" t, V# H: S J" y/ V: b4 i
ask turtles [do-business]
7 }8 Q. k. T6 x) ?end
$ D b j; B/ z( ~2 k( T+ H
6 h' \; ?) Q: b M0 ^to do-business
1 d+ P2 X/ R1 B1 z+ `
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, I2 u \# ]+ L1 g6 O3 i5 ^8 X; g- ]) ^rt random 360
: k' a( ]& s6 K( L8 _1 x7 I9 ~% m
+ g; C6 z; E1 [3 S- ?# K! Y. x3 Yfd 1" @8 E2 [% V$ Q* d3 Y4 x
% ^$ U- O8 r6 R% uifelse(other turtles-here != nobody)[! E& }- y0 n+ Z# K1 D
7 \7 b8 c U7 n1 z* M, hset customer one-of other turtles-here/ y, `4 j% { D5 a" S
& M5 ]4 @( S# x( I# r& Z
;; set [customer] of customer myself% a' l* k, r) t# J. N
, B# k$ j& G( F+ M" H( ^
set [trade-record-one] of self item (([who] of customer) - 1)
, K8 a; Z: j( r[trade-record-all]of self6 u* d# n9 U/ N- j+ n% z2 n7 `- v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* y% L1 U: @1 y# o3 a
% P/ k3 A7 _, B* s! @7 J/ d" }set [trade-record-one] of customer item (([who] of self) - 1)
5 ?3 G l7 b2 y2 F[trade-record-all]of customer
% }% L4 l5 ]7 I |
3 C3 A+ x+ M& w7 Pset [trade-record-one-len] of self length [trade-record-one] of self' M. N2 `/ u0 \; N- }
2 ?2 `+ l! a0 @% d, \! G4 U
set trade-record-current( list (timer) (random money-upper-limit))
/ I* `" o: j& U$ t
; C+ R% w& `* eask self [do-trust]& N. s4 K2 z" P( g6 q/ q1 c
;;先求i对j的信任度
0 t/ ?- V1 G' t+ n
. g$ s4 ?1 y# @8 w; g5 v" X( R( jif ([trust-ok] of self)4 N/ [8 p$ S: G" j, d8 @2 |
;;根据i对j的信任度来决定是否与j进行交易[
2 \; I2 a( D: |9 o5 d3 u% J& Pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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^* W3 r1 _& r, r& U2 b[
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do-trade
: z3 x. S8 P1 a, [- d6 X
( s3 I4 \# N$ D8 \update-credibility-ijl7 O T) X* b+ K* G& z/ V# p
7 c" P: X$ j" i- B0 lupdate-credibility-list
7 X, W0 o) P$ ]4 ~" X/ ^1 t& ?7 ~5 t! Q0 w4 T0 ^- g7 Z
3 p) Q" @2 b% s0 d' N
update-global-reputation-list+ z6 d1 L1 I, |# H! X
( b6 \/ p# }/ Q% mpoll-class
5 k" E9 a4 _, w5 u; {
9 d' I" K {, ?6 P6 X4 ?; ]get-color
5 w8 w2 ~$ z& K6 V v2 G+ B) ?) g2 \9 G) M, j* {2 V
]]
6 F; b6 x- B/ A4 [
3 f. d, e4 e7 x;;如果所得的信任度满足条件,则进行交易
4 b4 j" }* B& y, a$ s3 K! o% e; f$ l
[
! P W$ T/ m- _3 M* J4 R* f" f0 V# L6 C* T( j
rt random 360/ {- L1 c- R$ e- s2 G8 ]
- C; I9 S) x9 ~6 \/ \fd 1
- [. [( z/ q" H
D; d9 F0 W1 o/ E9 b]) I6 t0 e2 @& N6 K- X1 c
: _# d/ }% v) S* G9 l# p* }+ B
end: z; w& q( I5 B: \5 E6 E: L" y6 u1 H
4 f9 g; E- G9 y9 G. p6 s% P* Yto do-trust ' G) E% o- [; Y$ D5 }$ z1 Q' L D. X- n; }
set trust-ok False
: l8 q* r9 _0 P7 ~8 ~% U0 g; P' N' A4 ^. B9 V/ j
) A/ D$ d2 W! r) y4 N( B klet max-trade-times 0# ^( D2 M. S! g+ e- f D; d, t
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 o# b, w g4 o2 J* |
let max-trade-money 0
) ^9 |( j9 p3 k6 e, A7 H, Kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; e- K b& t; c. z4 \/ y6 f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) @. N! ^/ `0 }$ R8 S
+ w1 G. ?% B2 D$ C% f9 ]2 j. L0 [
0 O& k9 l$ K2 |get-global-proportion
$ T( h0 x/ j7 }' X' S8 klet trust-value
1 T2 H5 M G; ^) H) 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)
S+ V6 D+ ?$ v8 p8 {if(trust-value > trade-trust-value)
b; v7 Q; W9 i. s3 d[set trust-ok true]2 P( i/ w+ g5 a' A
end
4 i! e" k3 M8 s6 G& M1 K* U9 }+ o, M5 F' J& L
to get-global-proportion
w% d8 e* ^( ^9 M5 Fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. m* U3 ^' F0 c2 {[set global-proportion 0]: \/ y# @! b6 u. S
[let i 0 P0 G3 K: H T1 A
let sum-money 0
4 l. Y! _# [+ O$ W5 nwhile[ i < people]2 e5 e0 @2 t: Z" T+ ~3 P! P: x7 @
[# g% s. x p% d; w" T' r
if( length (item i
6 i2 j; w- R4 }9 q' t8 S[trade-record-all] of customer) > 3 )
; a4 \6 `( Y4 P7 a" d3 P1 u# Y[7 l8 p5 d/ Q! J5 |: f+ J# }
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))( i0 Z/ S2 o( m
]
8 X }* H4 l- Q+ g0 x4 U/ D]" X, ]- {, S" G/ T0 g
let j 0
8 s% H1 M$ X' R+ J- _( I! ilet note 0
' A, T0 @8 g8 S6 [/ hwhile[ j < people]+ | N: C; D7 z
[
& N: _- z0 f. F1 d P; y `' Yif( length (item i
3 R$ p# @4 ^% h; v5 H[trade-record-all] of customer) > 3 )$ j, a+ d( @; z0 L& I' B/ l
[2 @, G: T0 [( l, Q0 e3 }7 d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 b' _3 s! M" k: U0 f8 d- Q) o
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* V* |0 j) u. t% y. D+ l; c[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# F- I8 {! i' c* Y3 B9 z7 c- n]) w* D" w: Z$ G" P4 i
]
s$ f# H1 X6 b# ~$ V9 J% Gset global-proportion note
3 j) Q* s0 u* M( t- K8 c' x M]
4 V7 R) K" [( F) N! B2 U/ yend8 m# S$ j+ u8 o6 J
: q3 e( W, E+ L- r9 o2 n
to do-trade" z# U2 U& D$ }# w# X4 Y9 E
;;这个过程实际上是给双方作出评价的过程# @' O- D9 s* W6 b" K& z9 ^$ E/ F R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 x$ \* z1 f5 A9 Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' _$ ?. V& p1 }( I+ r9 Aset trade-record-current lput(timer) trade-record-current
# g5 a4 n) i) g;;评价时间9 `& {; b( c# [/ H/ k7 K1 N
ask myself [* F8 j* q5 e' T) z: k* C7 T. g
update-local-reputation
# B ^- _+ s4 Z a' v$ E! Rset trade-record-current lput([local-reputation] of myself) trade-record-current- s- d, m- _* y
]& J1 D% J5 ?+ Q, W6 u5 W
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 D2 D2 G1 d! u, V" w5 @0 v' \8 ?
;;将此次交易的记录加入到trade-record-one中
" {8 X& T' m4 s. p x( d# ^* e% R& ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 u9 d. [- S2 ]6 Y7 n
let note (item 2 trade-record-current )
4 V7 a% C# ^: V% t: W+ lset trade-record-current
; N4 ?. l3 v1 T) J4 B; u(replace-item 2 trade-record-current (item 3 trade-record-current)): g/ y) t/ V2 Q ~
set trade-record-current, g T4 v9 D# y- p0 K+ Q
(replace-item 3 trade-record-current note)7 P% X( Z- C7 F
: f: ` b* l, g0 G9 b" v
6 B- S {2 p9 [& B% qask customer [/ r- \2 Y' B0 G7 a
update-local-reputation1 q' O& ` o" C( l0 a/ Y
set trade-record-current
, r @) O c4 s1 d(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 w+ D/ r5 A" w; D' w% S+ J]
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$ {, Q: q6 w$ j7 q% t7 G( X' a2 r
/ K, w3 H* y( pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ \- g o. J: O' \+ L0 M
' ]" V2 g! v# w/ o) Yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, O9 @" u; P M;;将此次交易的记录加入到customer的trade-record-all中8 z/ w. P0 G6 @1 }9 s
end6 u9 u0 e% H' C' Y
8 z4 X& P. H" uto update-local-reputation# O; A% w) k1 z
set [trade-record-one-len] of myself length [trade-record-one] of myself
; S, f. V8 h2 T; x
' Q* z1 r4 c/ \, q& x) h
! _0 C9 w% S- ^8 ^3 z: d;;if [trade-record-one-len] of myself > 3 7 s, ~4 u5 ?# Y. b( G
update-neighbor-total
* w( S0 J7 m2 \: Y8 j8 d# z7 X;;更新邻居节点的数目,在此进行% J( J3 B8 @! u1 r' q4 Y) o
let i 3
7 J: V3 b$ f/ A1 f# q$ G r2 Blet sum-time 0- c% B' \4 Y8 f$ V. M
while[i < [trade-record-one-len] of myself]7 n# v3 t* W& ~+ [: F7 _' \0 ~
[; e: I( [' V" n2 E' u3 Q. _& s3 d
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 o$ m% k q: J' `
set i
% e' r" b) o) ?* q5 P! ?( i + 1)# R( a: _ w$ {2 ]
]9 S7 H" J9 j! j- {' l
let j 3
0 v3 Z$ T! T$ P! {& f- d, B" p2 Olet sum-money 0, }1 J$ c1 ]1 b9 b- Z' e7 Y
while[j < [trade-record-one-len] of myself]
. ]( t( t. w1 V# L" s6 a[1 S3 Y* }5 N4 y. k9 |; |$ v
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)8 q9 ?* z9 ?3 d/ _
set j
. c6 b; [8 l. W/ A9 s( j + 1)! c/ @6 u: C9 a+ O
]
6 w4 P: P- R4 U& D; Mlet k 3
+ |# l2 s' K* d7 T. L3 klet power 06 d5 L/ j; w% F' ^! D: S+ u+ o% V
let local 0- k, G, P/ `- ]( r$ y( x4 y
while [k <[trade-record-one-len] of myself]
" H2 J# B m( Z% J[
& U2 ]. q; m: N8 ?5 Y; A5 |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) ; H7 ^) s* f% c: n& J0 C
set k (k + 1)% q% c/ r8 o) S" z4 }
]
4 N& \8 L2 {0 L5 s& Kset [local-reputation] of myself (local)4 s5 D, C( W5 I; v) D% H6 H
end
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; h1 L) U/ f# l3 e Sto update-neighbor-total
' h$ B$ d8 H: T
$ ^6 V" u0 G- k9 ]* I4 Oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! }. T2 _" G* I8 S" O
9 j; y8 c1 X' T
- F- I; h1 e" ]% [6 Iend
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2 j0 O% D& I- U @0 a- L ito update-credibility-ijl
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- @% ^6 R5 A+ `1 n;;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。
) t7 B, _6 M- y! [1 I2 V9 mlet l 0% A0 n* I7 T) i/ n3 \7 V, G
while[ l < people ]
/ w7 r7 Z/ l+ V2 ^. \, x6 h, k) b' |;;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 L# M" L- i, E
[, d7 o# v) R$ }
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): H) C% j9 u* K9 c
if (trade-record-one-j-l-len > 3)
* }; B, [. i# J( Z/ l( C: V[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 ~' h( c) G7 |* y4 {, S% hlet i 3
: U9 Q; O/ R8 [2 @let sum-time 00 ? `- c- B8 T
while[i < trade-record-one-len]2 Y* u2 I6 R5 z3 `% Z4 e( J
[
& b+ K9 ^- u/ E- _3 j6 ?* Wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ z& [7 ~$ B1 e, m5 r
set i" D& }+ V: ]7 x" P1 R
( i + 1)& p2 ?; W& k1 r: o5 s$ e( G w. X
]$ t: \ |) G5 c$ ^8 @& l
let credibility-i-j-l 0
) Q( X: s; r. C: E$ O% i) ]( ~;;i评价(j对jl的评价)
* x3 F$ s9 Z6 d/ C2 Jlet j 3
& W9 n) k f! I" P; {9 O' ?. @/ c3 M5 `let k 4
! E# ~# S+ I- [+ Q, |while[j < trade-record-one-len] }6 b: D' r9 @
[
- K3 A6 H1 ]3 c& Zwhile [((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
6 K) T0 i. f$ j- |; u: q' Z# Mset 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)' F' p \) P+ Y6 Q
set j1 S. b0 M" p! S7 t) c
( j + 1)
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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 ))0 T2 J% S9 y" I2 a
) ~, H1 b4 x0 }' _/ x) ?. o/ d0 h
+ B0 J' N3 c( m# H, ?1 }. ]let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! s% @' C7 E8 A+ z& m;;及时更新i对l的评价质量的评价. o) o {$ I+ Q9 w- C6 E r& m
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' _" X# X, c2 H1 X7 c$ @
set l (l + 1)
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( o8 L4 z q/ l6 g. uend: S% V6 t2 g' X
. I! [) l9 B/ ?1 m: j) I& |3 nto update-credibility-list, x& Q% {0 R1 W3 K; T9 C
let i 0
) `- j1 i3 h0 \1 L2 I0 g" F0 jwhile[i < people]
4 D( N3 r9 c9 ]0 f[1 F' \. P2 W' g
let j 0
3 r9 M9 ?1 @ \/ g% f' S% Llet note 0
) g' Z H: s- L9 I' [, D# w6 U5 T* w* ylet k 0
1 F# d8 {) \1 K/ d9 o) q a;;计作出过评价的邻居节点的数目
~& T9 \ E8 W) Iwhile[j < people]
$ b# Y' \3 c3 I4 ]" Z5 Z[& f* `' C; U6 ~* o, k
if (item j( [credibility] of turtle (i + 1)) != -1)* M4 E( w. W7 s& t' s
;;判断是否给本turtle的评价质量做出过评价的节点% P: d6 H; V( O2 F
[set note (note + item j ([credibility]of turtle (i + 1)))
% l+ @" V7 r: |& \* s* \;;*(exp (-(people - 2)))/(people - 2))]" V/ Z6 }2 F2 O+ u6 t9 q# U
set k (k + 1). @2 h' Y8 P/ q8 V6 u
]
, k9 i3 f9 e! t1 t/ c( mset j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)
8 ]5 A+ e" T7 x' j. Kset credibility-list (replace-item i credibility-list note)1 P' \' n( r9 q2 [
set i (i + 1)
9 O# z0 g9 d) j7 j# \8 `1 k0 e]" \% x/ d ~2 h# G. o2 ^) m, l
end
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to update-global-reputation-list; G9 W! n& J' n& D- F6 ?; {
let j 0
$ t7 F( C0 h% B) d; Mwhile[j < people]4 {- C& A3 J- t/ N$ j9 R1 l; K4 ]4 T5 b
[
$ X1 R" k) c- B; c0 _let new 0
% h% I' ~+ x, {;;暂存新的一个全局声誉
/ h) v. P1 j7 M: [let i 0 i# v% G' R! b) A$ d/ Z- T2 ^
let sum-money 04 H( w5 ~' [/ P# b! j; M7 X
let credibility-money 0! c7 Y+ I' q! m: q( ^
while [i < people]+ I7 s$ C) X$ g5 `9 q
[0 J' W; r$ [8 A) h5 p ^3 a: s+ F
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
7 X! Q3 w4 r8 A# L' Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 U/ [! |& I2 N* i; ^set i (i + 1)
# c2 J7 \ [/ v) @, H7 b]4 b! C/ |( m' A
let k 0
/ M7 G5 s' ]/ blet new1 0( u/ t# r, j* s* K9 k
while [k < people]
! X! ?' o4 u; B/ ~3 U[
" r. V! }* ~! A4 l9 ^, {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)/ |9 e4 k3 H; B! s1 j; e% o% O2 Q
set k (k + 1), a8 ]+ |2 W9 E. z5 ]
]
6 u% w& Y9 g! ^+ C- C. oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / G8 V4 f6 n8 m; V
set global-reputation-list (replace-item j global-reputation-list new)
6 F" d, y0 i! P* ^set j (j + 1)
% Z0 I8 N& c$ O2 k]+ A1 F4 Y& t) r6 [3 {! H8 J
end
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+ B; Q5 R4 i. X
to get-color& _6 k' |, a) C
7 g0 ~3 M9 o( ~* l3 tset color blue
3 H3 j& A6 O! q( k! g9 Gend
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$ F7 t* U" V3 S6 V% ~to poll-class% h; b# o; z; M% \/ r; n( n
end
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to setup-plot1
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( i: M0 k, |6 {/ hset-current-plot "Trends-of-Local-reputation"
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6 ?6 U- ~: e! z$ D- H h3 Iset-plot-x-range 0 xmax5 l6 j% s% R- v7 ?2 I! I! h
* _7 w5 f/ ^& l7 R: \ [) q/ z! ?4 r
set-plot-y-range 0.0 ymax2 G; U( B$ M% }$ _
end7 p+ n) }4 C% @7 d- ]8 i, I
7 F2 y1 W6 g3 t- f( I. S4 P3 D: [- Z9 D
to setup-plot2
+ s" J$ U/ f1 X, i9 `0 x2 i p8 ]- N* s% F. @4 `3 e
set-current-plot "Trends-of-global-reputation"% ?2 G1 b& T1 r. f/ O- r
! l8 J3 A6 H) {. j
set-plot-x-range 0 xmax
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3 H. z0 U) R5 S* Q; ]! S1 y9 vset-plot-y-range 0.0 ymax
- M4 G+ {) L5 V r/ W# Send
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to setup-plot33 r, Q' a! \/ J$ W1 Z
9 x+ t T, k9 \0 t( g: n9 hset-current-plot "Trends-of-credibility"8 z: m. T7 G. B$ E' y- T; G
5 |7 A6 j ~0 Aset-plot-x-range 0 xmax: L0 c0 F/ \( p J( D2 V
$ [* ]% v+ J+ J2 x* x* Wset-plot-y-range 0.0 ymax6 r& [2 q; k8 @% y
end9 A- O6 |4 _# m% t
9 R* I- M2 ^ m1 ^. B# {/ o% fto do-plots
- V3 y! \ l1 G4 }# qset-current-plot "Trends-of-Local-reputation"- a* Z: ?; i& w7 n. d5 @
set-current-plot-pen "Honest service"
1 t1 J5 J6 K/ B+ [# @, \end, t' w, M3 i. i: T9 I% L# Q
( k7 J w' }: w" q2 S1 ^* Z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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