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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
1 N( i7 r7 h& @globals[0 [5 P4 F f) [! y( d
xmax. w$ v5 m& z* g' N4 R" l
ymax P0 y5 |/ U2 b
global-reputation-list" s, H0 d3 ^) s! S7 t
3 Q: \+ z! k3 f& u: }* y;;每一个turtle的全局声誉都存在此LIST中3 [* w; {8 A; o" |$ y; E3 F
credibility-list; u u; n5 e, m8 X G& y/ q) w
;;每一个turtle的评价可信度
) k* K" Y! _0 C$ C6 _honest-service
& O' w+ D# W! B& xunhonest-service
! J# t( h, j" ~0 {7 G. foscillation
, z: J4 z% B$ k! E/ E drand-dynamic' U; z$ J: K: d6 B0 S" Y9 p4 C7 f
]8 {8 w `: W; ]+ G4 _. S1 L' J
$ v8 J5 X3 `0 l7 c0 D8 A. Hturtles-own[. o. [. i) G0 h# B
trade-record-all
' U1 h4 t8 B, @' I;;a list of lists,由trade-record-one组成
, ?: g# ~/ R. H% Ftrade-record-one5 R' {; f) w. V6 R. R
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 \6 `! c5 t" l* z- R
; i: X4 k. B$ C! p# C& ]0 };;[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]]
6 l \- |9 m2 [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], V1 J% W0 B$ G7 J% N: k2 {+ g
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list3 K3 J* q5 A# p
neighbor-total" P# G' b3 v5 `, j2 Q [
;;记录该turtle的邻居节点的数目
- Q+ F# m) D7 V8 _! Qtrade-time
$ y" B) R$ u, ?;;当前发生交易的turtle的交易时间
z8 [4 y$ z6 c" K7 B, oappraise-give5 k+ j- Y( y# n" B
;;当前发生交易时给出的评价+ q; O% n. w7 E6 v0 S# o
appraise-receive
' v1 V/ ]. t x6 I- ]4 h$ H, F( };;当前发生交易时收到的评价2 }6 l; h# ?1 ?: ~3 X
appraise-time
- [' y% B' l; G6 K, s;;当前发生交易时的评价时间
/ O M# }8 `/ L$ W" ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
' {6 z. p2 i7 V `trade-times-total6 u: Y1 C0 V! V2 G
;;与当前turtle的交易总次数: X' h& H* V7 n/ j* m4 y
trade-money-total
" k2 p, P. Y; G0 m& m& }- P' q;;与当前turtle的交易总金额3 Q, x; P6 }9 e( o) J; g! K
local-reputation6 m% n5 h+ G& R1 x
global-reputation
. n# I4 c+ n* \! qcredibility
9 R1 u* C, b# W* };;评价可信度,每次交易后都需要更新
* y7 g9 L: r2 ~$ d4 ~7 Xcredibility-all$ g+ t1 d2 g7 F0 s9 F) j
;;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
* Q' h- _: H/ E( P, c$ m) C8 |, b j& ^. y8 R" }6 B* F
;;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0.59 H; c m$ D* r) O8 h7 f8 o
credibility-one6 T. G* b1 H1 E w
;;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
! {& n1 z) Q) m$ @& oglobal-proportion
* k; h! O# c i8 ^. qcustomer
9 i" b" ?" k2 q1 ]customer-no
2 e, J, V& Y2 C1 B' Otrust-ok
* e9 S2 l$ D, I7 V ~: a( O3 Dtrade-record-one-len;;trade-record-one的长度
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, b, s" J" F }# N) }, G1 J( P+ U
;;setup procedure3 i& C# ]! c9 U4 \' s& P/ x
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to setup9 Q' A$ m. W' V. D
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ca, H) |) X7 T4 z8 ?: A
0 b6 l6 }8 T! l, |& Qinitialize-settings9 z- {3 u1 k# \" w+ Q
" N. y+ K7 N( l: Z' x
crt people [setup-turtles]9 X2 g6 J$ ~) a3 k0 [& u
: b* x0 H" P3 Areset-timer# b- w# ]# R' \# C7 O6 {2 W9 E* t) k3 |
4 r( T. |# j( O- w- e: X
poll-class6 K* q! j9 V2 Q$ b+ x s# @! T( S
& t. B) G' Y1 L0 j5 Z6 L, K
setup-plots7 Y/ m0 P: m+ }6 e
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do-plots# c5 ~3 A8 R L, H; `- Q/ t. D; ~" C
end) Q) I, ?4 l- O3 {: L
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to initialize-settings0 O; e6 n. n6 @
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set global-reputation-list [] W- Q. O; H. M: Y+ e; d7 I1 v' P
- x3 z. R9 M) R7 O* |3 xset credibility-list n-values people [0.5]
! l( c i, x. p+ ?! e) U0 n% S! ?% T" V5 v1 D
set honest-service 0" h9 F' {' I9 V8 z# v2 Q0 B
+ D* n4 ?3 l; G4 Gset unhonest-service 0
4 F1 ~6 }* E. U5 G) V" v
" ?. |4 n- q1 o- i( C; aset oscillation 0 Y7 @6 d7 x0 D- k" n, E% R/ P
7 i. c0 S$ M8 {6 L6 b4 L& F
set rand-dynamic 0& N1 J, ~9 \8 \# }; e" C v. q
end
' D6 b; t2 d( \
( z) ?6 D3 h) M, J9 `1 tto setup-turtles
0 {) \$ ]6 b8 B Z3 F3 I& h0 Bset shape "person"( ?2 l3 P0 J9 [. _5 l
setxy random-xcor random-ycor
7 t2 ]9 d' C, _) W* D( `8 Z8 ?6 D4 Dset trade-record-one []
$ Q- Q. ?2 W) g1 m& s Z6 F: R4 F% D' a& @2 `
set trade-record-all n-values people [(list (? + 1) 0 0)] ( i9 ~9 n0 Q3 Z. B8 {1 i2 x
3 e' | g7 A2 j: {9 g nset trade-record-current []( [5 e1 `& f2 S# e' O( J3 d
set credibility-receive []
. j2 v$ }9 F. E' f7 Qset local-reputation 0.5
" g% l( ?3 m7 v2 S8 A1 x8 Dset neighbor-total 0
" s \" E" F* k3 x& w1 Z* d, lset trade-times-total 0" F8 a1 J+ A. L, \
set trade-money-total 0/ _. P& e5 ^8 J( B( c3 K9 f
set customer nobody
7 i3 t, u8 J" D- ?set credibility-all n-values people [creat-credibility]
( u) ?( w4 R/ P+ Qset credibility n-values people [-1]; X4 i/ Y; Y+ r8 m4 ^
get-color2 N; ^) m0 ]/ y
( r1 t! H K1 m
end
. ?5 R$ Y5 A3 S3 E Q4 Q* ]5 a* g+ j! v0 c+ Z% H
to-report creat-credibility' `2 x" ]+ r! x4 m
report n-values people [0.5]& c% ], I) R! f; m7 h7 C
end
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to setup-plots
% u8 d" H( Y3 t3 m [, i4 U7 J s0 m. R1 n L! I. G+ _& m- |
set xmax 30
7 h+ r5 O( ?; e5 |& `, Q- p R7 x0 `+ w: _% ^
set ymax 1.0; s, X) D& ]1 Q- D+ m- I
& v0 s" E5 n9 k
clear-all-plots
* |- I: @/ u+ _) ?- u. v, d5 {( q& k( k4 d" _$ X j
setup-plot1: u/ |& G1 a2 Q* H- c& J# a( K
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setup-plot2
: h, ?/ J7 W! c! t4 M4 g
! m# i' m2 D, x# Asetup-plot36 e* p9 W5 a6 Q; A" y
end; F6 x; [, w+ ?% K* T/ y3 J
7 Q- c. h& b! \2 W5 |$ g
;;run time procedures6 i, c$ p% @! `: F& E/ s
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to go9 _0 K) ~9 K/ g! Z$ `9 t6 q) q
( i. n' L# k$ j1 o& D* x9 F
ask turtles [do-business]
- j3 _# ~6 t. w, \! @( U5 Jend& y! T, p5 G: e; j3 q0 [& c
R2 R1 e/ y7 n
to do-business
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/ m/ G, v- o. y/ f j) h) Srt random 360+ l1 ]6 ~; M$ O0 r) {# w( w
1 V. G2 O) {9 c$ A( F7 W% [
fd 14 H" d& `1 V4 p' g
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ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself( ?) d- z/ L) z
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set [trade-record-one] of self item (([who] of customer) - 1)0 \: }5 o/ a: t* {
[trade-record-all]of self
7 x( F0 X% L+ W4 f;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* _# v6 F, x ^/ y" a$ `. ^: T! q
* c x$ U) E0 u5 \& Aset [trade-record-one] of customer item (([who] of self) - 1)" b% F/ x. Q# c0 S. G' [: P
[trade-record-all]of customer
& ], V$ w+ C2 ~& W
. M5 [3 O9 B5 l% M$ B% ^5 d, tset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
. |2 f8 n$ v( A. ^# A;;先求i对j的信任度
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if ([trust-ok] of self); `( R- f; q8 f% |/ }
;;根据i对j的信任度来决定是否与j进行交易[
1 b) S; A4 S3 x) r3 a" M+ fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
/ j* ~5 r% c7 p4 E. X
+ T5 V: Y X% a+ Z3 R# R: Vdo-trade. N6 u) l# }- w4 I* \6 p
4 |; `! X' m* i1 H
update-credibility-ijl$ ^# B4 j& ]( A* \5 X% U6 J
0 ]9 e% X& Z1 [6 a* ]
update-credibility-list
1 ]+ v; V2 e4 M; x9 T1 `* Z2 f# b+ v. F. P: Y0 W! d8 T
5 S& {$ d# h% w+ t4 m( [8 R
update-global-reputation-list h% J8 n7 G# v. I K
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poll-class
# t& l$ i$ Q1 C& k! C) `6 b# `1 |. l3 i3 c* K) I- h' N( s
get-color
2 Q# _% L$ [1 y6 [1 d' j, q6 x% V) @
/ \1 C6 ^# D! S/ W# { V9 F2 y]]
' `9 l8 X0 f/ `+ L0 u, d, j3 R0 _- w% s; _; _7 O9 c
;;如果所得的信任度满足条件,则进行交易
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4 C' z, i$ @; C$ F- x1 g[" M% P S$ J+ |& O9 Z! p) r
1 F+ f' h& N+ F# ?8 @, q" Wrt random 360
% y, G$ V5 D! b) _" k
6 i/ I: I* Z7 _" Ufd 19 A6 Z3 ]) V0 Q) M
" @8 \, ?( J+ H0 V6 U
]5 g" A4 g, v- }3 X) N$ v3 Y
+ c0 a4 l$ m; _7 D
end) o% |* @' z! e: T* _
9 r; R/ E* I- G& ]0 Dto do-trust ; L4 S' j8 H2 j, b1 T
set trust-ok False
0 `+ F/ k% H8 G, ]+ e/ R6 b$ P1 c7 ^0 @, c6 [1 r
' L9 n, y6 M0 j' O( ]5 X
let max-trade-times 08 g& ?! r" A: D+ G; i8 E4 S
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( Y" W7 G# H! t' N' _
let max-trade-money 04 i2 J+ j& d& x. P" b% A( u. s
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
* Q3 X* \3 W+ \& O' Zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 w* l! {- k7 |) @/ Z* _5 |7 }+ Q$ t. \" F$ M& b$ G# i0 k w
! t2 B0 f3 {+ o( ]; E" N% Zget-global-proportion, c* J. ?# j& F W7 \
let trust-value0 D4 V3 O. Z( }! r
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) B/ K$ `9 ?& s
if(trust-value > trade-trust-value)" ~0 l( D; f3 b2 b
[set trust-ok true]
3 d- J0 h+ W: J! e' Xend
5 f, Z: x7 m1 i6 Z
$ e7 R; s6 b& ]0 Yto get-global-proportion6 M1 ~& C$ X: t! K( H: ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( d# C; f7 Q# A% c5 p: K[set global-proportion 0]7 q9 v: F2 p/ h1 `
[let i 0
9 ^0 H; r( J% d G9 wlet sum-money 0 D: S J1 Z6 n) J: ?
while[ i < people]2 Z. ^1 i. O/ _
[; r8 E1 S7 Q1 T4 h
if( length (item i
* C6 [" w; ?& Y. l0 }- |7 _5 X[trade-record-all] of customer) > 3 )) a% A+ r9 }0 G& R7 G7 z
[1 P# J7 o v+ X. a5 ?! d+ r* k
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)): K6 W: p% B2 \/ j- I5 x
], d1 f9 x: q6 M5 f5 I- U' w
]) a) K) l" e+ y5 d0 m
let j 0, H T$ N9 z* _
let note 0
$ [) i7 R4 X4 |; e9 @4 y D8 l3 owhile[ j < people]. H6 C- A6 A; D' f: N
[
0 H+ _! w; R% @if( length (item i
$ B8 v8 w" ^9 B- S[trade-record-all] of customer) > 3 )
9 J/ Q( o, Q1 N( I' L[
2 `. @! N9 @5 m5 Pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, u m* g: g- X& |# `% k[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: L0 ?& {6 } S7 @' N0 Z1 Z. O
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! n; R5 r) M% O( `) u]. \. p9 h- D: G; h. m4 C
]/ ?6 a! j' ^. ]4 F" H; }8 a1 G
set global-proportion note- h0 d, c) S/ s; H, t. v
]* g4 C$ m9 i7 ^: Q8 B- ~
end
4 _4 t1 E) p2 Y8 }; s: s! y! l8 b# h& N# C2 v
to do-trade
- j6 r$ a& U; G' D3 C( b9 l4 Q" Z;;这个过程实际上是给双方作出评价的过程
6 ]4 l# U8 d+ ]9 ~" ~ X7 @) _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; d+ T4 |' l; G9 L, d8 ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 ]6 i( c. A7 m. Z2 `* bset trade-record-current lput(timer) trade-record-current
0 O, J3 b. h4 e9 x: G5 Z2 q;;评价时间. ] {2 \8 \/ q2 M% S9 F
ask myself [
$ `% K n* E5 G% n) W( n1 s! v4 cupdate-local-reputation
' A- Q& _, r- p! cset trade-record-current lput([local-reputation] of myself) trade-record-current) J2 q+ h8 @- F& R7 [/ i
]5 F3 g8 l5 c- C4 b& C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 Z( I E* @& l9 O1 M" X+ |, Y
;;将此次交易的记录加入到trade-record-one中/ c5 T7 f0 q/ I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) X5 ]) v$ a7 W/ Dlet note (item 2 trade-record-current )! x0 o% M$ T0 B* `% E
set trade-record-current
( N- P0 B+ `# m9 O' G3 q+ v) W2 z(replace-item 2 trade-record-current (item 3 trade-record-current))6 J8 J" t0 ]3 T, q
set trade-record-current" @" S3 f' c. N0 y f' b, B4 A7 }
(replace-item 3 trade-record-current note)' r3 Z. T+ S$ B" j
s; }/ m: y* T
2 p3 n& d: G! o1 p) D5 {2 [1 j( Y
ask customer [
/ i* x6 N6 s. B" E+ s" } h) N7 fupdate-local-reputation
# i& D5 `: O" P2 n% @7 T2 Sset trade-record-current) V- r- G f. j8 I. Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " [9 k1 ]2 \( u v' }
]
# s: ~, B" e1 Z4 X# p8 O. k6 I$ u. g( l1 e9 i
' o" d: ]& Y) Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 ]+ A9 E4 H. T0 f" ]5 N0 J/ \# N8 {
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' A: K% i8 L1 t% u0 s: x
;;将此次交易的记录加入到customer的trade-record-all中
4 ]& h4 }4 h% d5 Jend
+ |4 F7 L; Y. m4 G2 e3 Y& I8 x2 f; n4 ~! M" Z3 y9 z
to update-local-reputation: c( j. [ c. B" C5 d+ N; g( u7 ?
set [trade-record-one-len] of myself length [trade-record-one] of myself
, a6 |9 N3 j# Q/ j; X- |7 q. o3 r0 z. }& @, }: X& }
! M* L- R9 H: ?;;if [trade-record-one-len] of myself > 3 9 f) ~% h- c' F1 W6 G
update-neighbor-total1 K: u4 C; G! N! r
;;更新邻居节点的数目,在此进行2 h- \& [% ]. z/ Q' G
let i 3
, h! ^, F3 Y; A. wlet sum-time 0
7 x( N5 a; I* g) uwhile[i < [trade-record-one-len] of myself]
' M8 |; |. k" ^. L. @[
6 X( G/ o2 d" }$ zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ \# b6 `& z$ z* z+ A: r3 Z
set i4 k1 p* N; _5 ]% r; ^' ~9 Y' ~& V) _
( i + 1)
* V# y( L: e+ f( |/ D1 h]
( ]1 j( a' z$ n; M6 Dlet j 3( `6 I. ]. c2 ]8 y( W7 K5 F
let sum-money 0( U2 f/ s5 I3 ^; p- v& B
while[j < [trade-record-one-len] of myself]
- i1 R4 V. ?# A% q+ |[% e! E- K8 M- @" X1 n9 x6 G
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)
7 X+ f+ M- }( R% m! fset j9 }& }) J+ F+ b+ \* c
( j + 1)% B! E/ U4 H0 w1 R. `' h
]
! s6 g* I7 P. z! b( Clet k 3
# X0 g. o; _" w$ U7 X$ |let power 03 z% y C0 [( A; q0 F" W
let local 02 C5 \, r4 s$ l: n( S7 h9 ^
while [k <[trade-record-one-len] of myself]
/ {! l2 M2 \+ b; P7 d[
1 E. s: }( p1 D( w1 f" bset 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)
6 B% v+ ?0 B0 B: vset k (k + 1)
& P. t ~, I3 ^" g7 A]
" e1 K& H7 M- v! Y( |5 |! Gset [local-reputation] of myself (local)
' k8 b: ~! K4 ~3 j; Hend4 h, A x3 k( c' O1 C4 e. z1 Z
7 M2 \* ?/ P; ?+ \" R: K; c+ r9 xto update-neighbor-total
, w5 s: o& L2 T0 \5 C, L2 d% S. n: Y# u" @+ j" R
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]$ G: A9 L- X# e
& |% g2 w. J9 B% y& U5 J; n( v0 b. k" `; J# Q3 J- }" S
end) P& d0 T7 v. g9 {
, L9 ^. h) }, ~! G9 a' Z/ Hto update-credibility-ijl ) T+ I6 \( H7 R, Q$ y! c p6 j
* d7 w2 x; h; d;;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。" p' U% B" I0 j C: v, b! _2 x+ S7 i
let l 0
3 m% l/ M5 O6 C1 Qwhile[ l < people ]! Q: p% X; y- ^. d- ~8 @
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' e/ W& A3 L; ^) H, d& J+ a K0 }if (trade-record-one-j-l-len > 3), z1 S1 o$ ?$ u7 ?
[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, o7 E, _6 |9 L; Slet i 3. c! H( o% @* q; y, e# H+ A6 S
let sum-time 0
) R/ }& j2 I& {: j: ewhile[i < trade-record-one-len]
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) d' X* Q+ X3 u0 n& Tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ a. {# ?" H! x& y6 @/ w4 `7 `set i* E1 P K& D* L, U6 L$ z5 Y) W
( i + 1)
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# M3 |. g6 R9 w7 Z5 H$ hlet credibility-i-j-l 0
& o) N. V! k( C4 k4 x;;i评价(j对jl的评价)
* \. p0 w# P/ F8 X k9 ~let j 3
2 _2 x$ P0 ~7 s; [let k 4
: u- h# U& ]* l& Lwhile[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
' k/ X# e. i/ E& I: ~! u; Tset 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% d) j; p6 z3 qset j
& H. [# C( s( W! y( j + 1)
3 O7 j) }! i9 b0 }; E]
# K g$ P$ W, t& U& o( qset [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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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) E9 W( P# V$ J, c* {
;;及时更新i对l的评价质量的评价
E( l6 L1 O4 A! D$ \6 R( |set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 r- |; M( k" a
set l (l + 1)
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. r" q0 r! p& {5 B7 E7 Qto update-credibility-list6 \4 u( r5 n7 ^6 C7 S; m& l# d
let i 0! g( c, h I5 @
while[i < people]
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let j 0
# b$ V6 A& w) r0 I, Dlet note 0' C- u5 a% L6 Z+ K" E) W& _
let k 0
/ Q5 X6 h2 q, J;;计作出过评价的邻居节点的数目
% T% M; ?2 z5 l0 {while[j < people]
$ L1 m: q( K. j T[. o' i8 s- |+ r+ Z
if (item j( [credibility] of turtle (i + 1)) != -1)
7 [4 B; f5 F" {8 _" d6 l* E;;判断是否给本turtle的评价质量做出过评价的节点# r; B, F8 x+ R- K& q* ?# n, O
[set note (note + item j ([credibility]of turtle (i + 1)))
8 y7 w. v0 F% r0 J0 S/ X6 W$ N ~;;*(exp (-(people - 2)))/(people - 2))]2 [! B6 f5 b9 h0 x6 B
set k (k + 1)( {4 ~" ^# O4 F9 X: s* W2 i
]
3 ^" b+ t1 j. @; q7 gset j (j + 1)
- R6 w* R! B" u! K4 e]
* b7 N! ^: [ `. X1 _set note (note *(exp (- (1 / k)))/ k)
. q f$ z9 g( p0 e3 ~& a; \; J& Mset credibility-list (replace-item i credibility-list note)
5 D: |" l" P7 R/ L' a% s! Bset i (i + 1)
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- q; k `: m4 }3 C# u; fend% M) |4 K+ @2 Y( D5 ?
o6 p* d: l0 k( o% p) Vto update-global-reputation-list
@1 i2 T8 k0 ^( Z) ], t( j1 P' klet j 0/ d+ I% j/ }- m" X0 b, C) H+ }
while[j < people]* N3 m& S7 w7 O
[: m# p" i3 K& ?) X* ~* c
let new 05 Z$ y! {' Z9 J) d4 P- s6 k" q8 }9 P
;;暂存新的一个全局声誉
$ l) }/ i( ^; c( }let i 03 d* C5 e7 e3 w* w# X( N
let sum-money 0
* S9 \) }# o; E/ `' `7 }let credibility-money 0
& i7 s4 ?% f2 X, @! ^while [i < people]
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. P9 m6 A4 w" R+ _, oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))% [5 Z/ a' T- j
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) Z0 M+ L# E j
set i (i + 1)1 N6 p9 x& T* Q8 c
]
3 i) x* d. s: i4 B+ N+ K Glet k 0/ e" ^6 h, z$ Z9 r( N; m
let new1 0
' Q0 F0 {2 S$ e! C7 c; [while [k < people]
& G$ @- K! d* t$ X: e8 \[/ P" w v9 @' Q6 o* j
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). N4 E, P; q$ }( {+ q
set k (k + 1)5 ^0 A2 O" _' B0 x3 b O( o
]
& [6 {: L. U% W, J; l* Dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ) ^2 F5 q& q% ?( r5 l
set global-reputation-list (replace-item j global-reputation-list new)
2 R, e r) s% a' ]set j (j + 1)
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end
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to get-color2 r2 T+ Q$ n; |1 G. \3 ]
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set color blue2 J* q# ]7 ?6 q( s7 V) r! E
end+ E ]: G. {( K- o- z2 t, `+ O2 L
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to poll-class
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+ c$ x4 w" w1 }+ H! w4 qto setup-plot1+ g8 ^- A- I& x2 c% Y
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
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6 M4 R& a2 R+ ~6 Vset-plot-y-range 0.0 ymax$ B; ?3 X' a9 `. y0 b/ F
end
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to setup-plot2: ^" m# u, N9 A1 R8 y+ u. M
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set-current-plot "Trends-of-global-reputation"0 T* N# P; N; n& H8 V S
- [# m4 y: N& O0 W. w% x* B) A
set-plot-x-range 0 xmax7 N, c n2 m6 K
+ x4 i$ l' y& U. t/ c$ F K% Gset-plot-y-range 0.0 ymax
' w& l: K- l% X& M6 c4 b' k3 |end
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to setup-plot3 x8 ~# F Y2 s% W
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set-current-plot "Trends-of-credibility"
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8 g( K) B" w5 R* eset-plot-x-range 0 xmax! U" G! C4 O) J1 w- z9 s. x
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set-plot-y-range 0.0 ymax
3 V9 `! V' }* K* o7 {" Q) W0 _end
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Z' l: Q' w6 `) R+ Ato do-plots# T. U5 T u& ]
set-current-plot "Trends-of-Local-reputation"# S) U% @+ h# ]$ A
set-current-plot-pen "Honest service"
7 d) ]. g$ T: S2 V- g" o1 j! Rend
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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