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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4 z" U* R7 B, U
globals[
6 v% Q% A3 {) g/ {xmax- ^9 m) A+ o+ M5 T$ @- c& {
ymax5 O3 b& h+ {& [0 q2 o* B
global-reputation-list
3 {! g2 _3 m& p% e2 h: S' z/ T
7 T& s5 [. c) K. m2 t" J;;每一个turtle的全局声誉都存在此LIST中
# r, i5 w# q* @* Z4 Fcredibility-list
& d/ u3 C M4 V# H- T7 v# X;;每一个turtle的评价可信度% f- O- z: H! S: {
honest-service
0 } O: {8 I/ l! V, [$ s3 tunhonest-service$ [ ~9 J5 ]% k& {) S: B O" A3 x
oscillation- @; a+ Q' d- I% B3 e# i5 j' L
rand-dynamic7 i; C& j. W7 F% l' X: }
]/ D4 E% m5 z; y' K
q( l0 J# N% R+ O5 s8 V
turtles-own[
5 W7 ~! s5 ^0 x" utrade-record-all8 z/ Y6 I3 J) N9 ]- s) b
;;a list of lists,由trade-record-one组成
?0 ~# Y! a" @trade-record-one) L1 ^6 [/ j8 t: O" 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3 d6 x! o1 @. h6 V0 t% q7 H& K
! p1 v4 r# l: S6 V7 _;;[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]]
; K1 I! M2 W4 c& gtrade-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]
9 [6 k5 C7 r3 e: U! }: ccredibility-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) |% k. w$ [9 s! x2 o% O
neighbor-total
2 y# s, p0 c! b;;记录该turtle的邻居节点的数目
8 W, v6 \9 F4 _6 m1 o5 g% G- etrade-time
+ @2 z( ~; D- |1 w P9 N" B: ^, r( z;;当前发生交易的turtle的交易时间
+ c& z2 Y' U7 r! W! K* D4 ^7 xappraise-give ^9 Z( k" a9 }- k0 }
;;当前发生交易时给出的评价
/ J5 b2 ~- d9 w5 F7 |appraise-receive! z1 y1 p- W7 A$ \, n% T! t
;;当前发生交易时收到的评价+ O. Y9 V3 d; g/ g
appraise-time
9 }) s& Z5 P+ k; K |! N;;当前发生交易时的评价时间. U0 z# F/ D1 U# }+ {& j$ \0 X L
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ G0 ^3 F: Y$ W1 I; ltrade-times-total2 |4 ?4 F1 J" H! R# A# N* E. C
;;与当前turtle的交易总次数- M1 m( m& `/ w$ X% L% E
trade-money-total2 n3 L. e* @2 C
;;与当前turtle的交易总金额8 h, R) f y1 D) N
local-reputation
# T) i/ @3 W) y R7 }" Z7 Nglobal-reputation; F6 j; G4 `% E# D% r* E" ^
credibility
! d. h' x8 e8 q! Q+ x- p3 w- t8 \;;评价可信度,每次交易后都需要更新
5 y8 t5 w( {) {# Y4 |9 _) T1 vcredibility-all
$ R2 L) x$ d, w; ?+ q) I! ~8 M- v* s/ 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0 B+ V, F1 n7 Q8 Q# A: d0 ~
. y( \7 C# y$ `% V$ Q( s" x1 p
;;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0.54 M! l3 d# o$ O1 p
credibility-one e! W& w% m' n" q
;;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
, C# E! P. R6 @9 l, Sglobal-proportion
1 x* s! l ]; `* L) \7 m8 ocustomer
7 K4 U/ [& X' Y% M7 a* ? Kcustomer-no
; E- }1 l' c0 I: L( }$ n+ e2 D. qtrust-ok1 p. S; i3 @& z; t
trade-record-one-len;;trade-record-one的长度6 V* F9 L3 s+ w' }2 @- |8 W# L
]
1 I B0 w! S% }$ @& c
; n$ l& n, O/ [3 J0 I4 Z;;setup procedure9 U, i! C5 x* C. I& R
' e" X& k& E# w: |& ?+ N8 {% }4 w. Wto setup/ h5 ~3 u! y7 }8 t8 D) J
- g% \0 ` k- Q S9 j* n
ca H! d0 _" o- V3 L& n
* n& g# `% P% N3 N, }( q2 oinitialize-settings
7 }8 M2 G4 T9 t. V, V$ Q
+ ]* O9 Z: w/ W0 pcrt people [setup-turtles]7 J; X+ T# x& R, \! W% C8 ]; x
0 d0 Y' q- W- g/ ^0 ]8 o3 c% A
reset-timer
( i4 G, T) n$ s. z$ r; s
' B3 C" j9 \ e+ H7 R4 Rpoll-class
1 m9 K2 s O/ V* S: S+ v- e1 B
2 d6 @, b! E! I& ~. W+ Bsetup-plots
, [ g; o9 G; s! k4 T' t: {. R
# j3 j# p4 t, D6 H$ @4 c1 Z+ H; ~do-plots
+ Q- _9 C. d# zend j2 e5 B5 V) Y# k( i+ K* i
, L9 ]. U" o6 C4 m! A
to initialize-settings& f+ d O" S& Y8 m7 H# M: x$ {
) R7 [+ [5 l7 ?, O7 U1 {9 x2 A+ ~set global-reputation-list []
8 _. @2 u+ W% C: C% ~% m9 \) q
" Z! f$ _% E1 ]6 s3 H; }set credibility-list n-values people [0.5]1 E7 K9 P6 O& G# C' b# g
- _- }) ?: I! T1 P! P
set honest-service 0
; B; j+ I0 w& S* C" v
; s1 Z6 l. T4 x, e5 v5 Zset unhonest-service 0
8 e7 U2 R- L' ]/ X
; O7 W2 T& `7 Q8 F: }, Y" Jset oscillation 0
B8 v* m r+ |0 |/ K
0 O! U! u1 c( S" ^set rand-dynamic 0
0 U- ~6 I& s. U# R% i7 f; ?3 U# X' hend1 W. f6 V% j) |# f
1 N# i+ ^. j) F
to setup-turtles
. G; A X0 g# L/ X) V3 R6 lset shape "person"& @% F: Q1 _3 P1 O+ ?5 x$ W: _2 V. r
setxy random-xcor random-ycor7 h- x, f8 G& j2 a
set trade-record-one []
. I5 k: `8 [6 _" a* _8 e) w3 s& P+ x1 b1 {* N! Q# i
set trade-record-all n-values people [(list (? + 1) 0 0)]
7 ^2 _0 U+ h, \5 z/ d( S
! b( h, A" g6 ^( L+ Z X' o+ nset trade-record-current []. a7 C1 u: ~* p5 X+ ]
set credibility-receive []9 j8 K, y u8 K
set local-reputation 0.5# P+ x3 s6 g6 V
set neighbor-total 01 _5 Z& h1 U$ @
set trade-times-total 0
$ f: R% O8 ]# J, H3 k9 `: `set trade-money-total 0
( W9 a. \5 b) P5 b) s: x3 Wset customer nobody
4 k8 l/ D& Z3 n+ N- k; A6 }set credibility-all n-values people [creat-credibility]
& V6 I) R) k. w% ?set credibility n-values people [-1]1 f7 o( C1 m0 x! I* u
get-color
( T0 f1 \: x) V0 D/ q P
9 ~: l0 D& ]+ ` Z: Xend
0 ~+ B- T. n; S- m4 |$ j X$ G5 ~" B0 A, D$ {. o
to-report creat-credibility. _- ]) ^: r, Z( ?5 j
report n-values people [0.5]3 c8 A2 D; Q5 r% ?3 r
end q8 G- C. p9 D
* o5 B& s9 f* _, h$ s/ K9 Mto setup-plots' P# V2 h j' y( ?) e$ y
7 u* l, C1 k" [/ P' nset xmax 309 O8 C2 x' {; c
- ?0 O1 N( D- w
set ymax 1.0
3 j4 v, ^0 T, z0 t @8 o! F; ~9 }1 `* f4 r( V& H7 ?' A
clear-all-plots
9 W5 r3 h: r7 H+ g8 V
/ f& A' L) ?- {/ f5 {setup-plot1
' R3 c+ S* ^2 }9 B# ]% K" W
% N2 |! I% U/ Xsetup-plot2
0 R9 L. B! G9 s7 g) C7 ]6 v7 @8 @( P
1 b! g1 t# t$ s/ s4 \# {* \setup-plot3
, s; n7 H, j' G/ Z2 b. Lend
. c4 A$ | k$ }$ S' Z8 V* T
5 }6 S+ S4 U; H+ K;;run time procedures0 r9 {) c! o- N
. ~ W. L8 O' i% m* l! y0 K5 C
to go5 b8 f2 M( Y7 X5 o# a6 e
5 n" U+ \! d Q) t4 h! N" _ N
ask turtles [do-business]
2 y7 S4 M* ~8 ]end
3 M) W/ H( w! w: v- x$ `& u' z, p, ~ K% B
to do-business
5 f4 K- E7 `; D6 o
9 ~1 u+ w" k! Q
s: U: Z% i/ y0 `1 drt random 360
# d2 ~ l7 h/ A9 k8 @; s+ C+ U; X2 [1 o0 S
fd 1
' D* W! ~- `+ y( M3 P3 W2 Q- m b$ Z; n- `9 g5 U0 o
ifelse(other turtles-here != nobody)[# T2 w7 G9 C0 s. \7 f
7 z4 C5 w- E" L8 N" p: W
set customer one-of other turtles-here
4 N$ p a( P2 `- I1 i8 e0 l& c- T
) c3 ]* i4 F! t6 o;; set [customer] of customer myself
4 k% l5 n3 {5 Z+ m) _8 e2 i4 T% ]" f
set [trade-record-one] of self item (([who] of customer) - 1)
9 Z% ^" s: w1 g, E- V[trade-record-all]of self
. V' m0 k4 |' t$ i6 ]: F' a. Y! s. N;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* g1 [+ n. b* `1 U8 n9 r' l: t* C: W+ I
set [trade-record-one] of customer item (([who] of self) - 1)
! [0 f6 X$ R" ]9 M! {[trade-record-all]of customer
7 C. r. ]3 L6 r3 t6 r
4 z7 a5 J2 j1 |0 Nset [trade-record-one-len] of self length [trade-record-one] of self4 o4 @6 X/ a( X7 |0 C4 `
; R# K3 R" c$ y4 C* _- ?1 Lset trade-record-current( list (timer) (random money-upper-limit))
! K o( i2 {# }; _+ d" Y
* ~4 x! u. [: m s( Yask self [do-trust]6 n9 f* h6 s' c- z: D% o
;;先求i对j的信任度
1 u% G+ ]5 |2 D+ E; Y1 i
) o& Q# G- p8 u1 s! i+ Qif ([trust-ok] of self), N0 {' b! |! e$ W" f: \8 }1 E
;;根据i对j的信任度来决定是否与j进行交易[6 y- s8 @% S- \6 Q2 b w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& t: A: \ U" B, }7 x
( R6 D$ f* F+ t& ]# T[) R* L9 k4 }' E, K* X
9 G9 B6 r \' h) f) bdo-trade
5 ]6 a' X3 Q5 n z* \
% \3 H4 n) T" C0 F: z7 W. e5 o. v; e4 ~update-credibility-ijl3 i: G+ z. `* n2 F) n: y. i
9 c3 V9 h- S' P0 s3 v2 G9 n4 uupdate-credibility-list
. O7 r- ]9 {2 j+ O2 R, a* O" a1 @1 x, `' @+ S# r L% A, f
) P4 E* Y0 ~9 z0 ?1 D+ \update-global-reputation-list
5 Q: j3 R7 w. }3 X+ ` D. [, D! u. G b. ?) B- ~3 u
poll-class+ Z9 Y% W7 D6 \8 {& p; b
) v$ y" q* d u' \# J5 F1 k
get-color
4 u2 J: g3 ~( F4 N
# d6 o! i4 s& n2 \+ e]]4 N- ? X5 U4 p' y" q
y4 Y6 t2 L, p2 K
;;如果所得的信任度满足条件,则进行交易4 U8 U, n' V% [/ x1 x0 b% P E" f, U" N6 L
3 H0 Z: R2 i: N4 Q* H4 s& v
[
" r% b3 D$ D) ^* s1 W" O- Z. a- t& ~: C! s5 `
rt random 360
6 N: A6 t" f l' a& `" \
4 O9 r; d; D6 ^6 C9 d% Ffd 14 e' L' M4 M0 c
}' Y# a1 h4 y7 [ B+ W7 ]- J
]
U/ D) _: x0 w% `2 |. ~
! v7 t. s$ A- {9 n9 Tend |, n5 B9 i/ [3 X% u) n8 V! X
+ y* b2 a+ g& E* Q1 _
to do-trust
% s1 I$ w1 S& r4 p' lset trust-ok False$ c" C9 _" w" V& A
7 l. W% n- w, K+ W6 {) j. i2 g9 a
1 W/ g! Z2 D& Q2 A6 f+ }. Y1 l7 I `let max-trade-times 0: s8 }' @9 b9 \9 ]! W
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] T% L' ?, N4 N6 Q: d% u9 Y4 o& y1 b5 h
let max-trade-money 0
5 d, c1 J5 s4 e* f" d0 Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 [& P& r- O: z6 B V! d- Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ C& O' \+ {6 N0 u
2 i- C H9 M& g. `/ C
' _- C5 n5 J0 S0 c
get-global-proportion0 }2 X' l$ |" W* w5 _$ S; ~
let trust-value
, \8 S$ Q o2 D" Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
8 k0 t7 k0 x0 A8 v& B2 C# o4 T& yif(trust-value > trade-trust-value)* c( g& N( P0 H4 e2 o0 Q
[set trust-ok true]6 j7 C/ A# u( q& v. a" M2 t
end
- J: y( y) |- r/ D! {
. E2 ?( x; C: w$ T( h0 ?- X4 Lto get-global-proportion
0 F/ _& c2 i& f8 sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): G q1 d1 \$ M) C9 ~
[set global-proportion 0]
5 }: {* J9 }8 H$ I[let i 08 K5 q8 _: @2 d% P+ E7 J9 P
let sum-money 0
) ]+ i6 m3 r3 Ywhile[ i < people]4 y" `& {# k& U; z% Y
[; W; P) @, f7 F/ N
if( length (item i
7 T- E0 S4 W; ~' ?[trade-record-all] of customer) > 3 )
# d8 x8 A& d9 t& l0 W( Q( w/ ` R: U[3 a O( d# Z6 v$ B+ K
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. F( O: R" B1 w8 J4 _; t]
( i8 n% o+ J" F; ^; _3 a0 l4 g) G) j]3 j; y2 u+ }4 d7 k. q+ H
let j 0
1 |7 d# x: J% k/ ^0 \8 Ulet note 0+ M) L& u! ^$ j8 W; [
while[ j < people]! w. G8 i5 }3 h# n- ?3 F
[
) H* U7 q& j7 c fif( length (item i
- I, m" k0 \" Q[trade-record-all] of customer) > 3 )1 F, |* o# Q+ U9 x8 s& n
[6 y+ L) `+ K @. t
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ F, q: L; }" M/ U* z1 t7 q6 k
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ K/ Z' W; x8 n# z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; j0 x, w- Q4 ?% l% q
]6 @% r# Y% x+ M' F) [- q8 p
]! c0 M) y9 o% j; Y$ ~; w' k. L, A
set global-proportion note
; I7 k+ k0 l5 _ G- S]
. h0 K1 p1 A# v, s3 e( tend# o7 Q+ A; I# L% f: J2 V( ?' b
+ v5 U* q0 m) O2 N3 y' x3 h
to do-trade
6 r8 X% h" V0 P& Q5 v& ]. k;;这个过程实际上是给双方作出评价的过程/ C5 c4 X3 V$ s u( ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) v5 k- a4 B: H3 A6 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( q0 f7 s" i1 y" \; o; C" _
set trade-record-current lput(timer) trade-record-current
# E: M6 O5 n$ c4 [ X- g/ [;;评价时间
; N/ C) [8 C0 s$ E5 f: F+ e2 bask myself [
1 N" G1 C4 ^# A) Rupdate-local-reputation5 K1 Y$ i; ~. r% @& X& s6 ~3 q
set trade-record-current lput([local-reputation] of myself) trade-record-current
; _1 E" r, n5 B/ _! N# x]4 F/ _) ]/ |' N) ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. w4 ~9 b9 f- W" t* C3 K& B4 q
;;将此次交易的记录加入到trade-record-one中9 o2 U: R6 p4 J( z$ B1 `- A; V7 l
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' P! Q( m% ^9 @- A7 p
let note (item 2 trade-record-current )
" `3 X& H$ p8 K! [" i' o* b9 o5 Nset trade-record-current
4 X ~# M# o" w) [/ }, \(replace-item 2 trade-record-current (item 3 trade-record-current))$ Z' ^; d9 d. ]
set trade-record-current
3 Z5 U, i$ B0 ^(replace-item 3 trade-record-current note)
6 }. ~; M/ c0 p- H( f% D0 T% g4 J9 L2 ^- c
( r& j8 I4 e; x+ a2 v) o# Aask customer [ q; \: M$ P# `2 m8 \5 K
update-local-reputation' j$ Q' Q4 Y* [4 K3 Z3 M5 G
set trade-record-current
- z! f- ?, a! h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + G {6 b! _. O: a4 @# G5 T
]+ c2 }; d. S2 S% k( u/ V; R
5 f1 j2 e. T8 |1 }6 }3 k8 @6 ^
0 ?/ M' P2 i- D. Yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# E0 y/ W6 M$ A, p& m5 P% }
/ V# W! r5 ~7 w, w5 w% Y) qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): D; j8 }; f9 ]7 {6 O+ y
;;将此次交易的记录加入到customer的trade-record-all中
# ^- s# [5 b* B- l) qend
' c2 Z- q1 c' b' b8 z3 X/ U7 B2 A4 f* Y! G5 k
to update-local-reputation+ `& f2 e* q f2 U
set [trade-record-one-len] of myself length [trade-record-one] of myself8 s( q P9 B( Q5 P1 e+ Z
8 G) ]& `$ Z/ v0 a3 S+ r9 E: _. F
0 P5 b. }- O7 O1 a/ \
;;if [trade-record-one-len] of myself > 3 1 D3 }5 k* C- K, K; i# S* f
update-neighbor-total1 @( K* s; h& t: I
;;更新邻居节点的数目,在此进行5 |% }* d1 L- H1 A
let i 3% i% k) t& Q# W8 ~- M- x/ m
let sum-time 0
- ~# K {# |" Q+ {5 D1 N; g3 _while[i < [trade-record-one-len] of myself]
7 G# q7 \% M, k9 t4 J[. Y; m$ w# M' ?1 P) y# v
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 f6 l* W# M% G, ^# G- r$ W/ @set i& o6 P ~8 z$ H
( i + 1)- ?6 u6 d3 y! e1 Q& x$ E
]& N# [; b( v x: T
let j 3. W3 c o! k; G1 f2 N
let sum-money 0) H' I* T Q9 q5 `' ^
while[j < [trade-record-one-len] of myself], \- [( Z! U T- l& e0 r
[
4 |. b9 _3 q, m8 D( H, J Kset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
2 x- ~6 k4 f/ i% aset j
) \- R9 K" g$ z0 l! {, H! o$ U( j + 1). N* Z1 K, f& y/ o
]
: Y7 _' g5 Y6 k" T$ Jlet k 3& ] w) A, J1 i
let power 0
; y/ }' V- z4 i" ^3 |let local 0
" T5 o5 _9 s% A: E- \7 }while [k <[trade-record-one-len] of myself]
. t( h6 U+ c4 ^ A[
; Y U! r8 A% I( Jset 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)
: G) l Z" u; {# O' h% Nset k (k + 1)
3 R' V8 R9 D4 ]+ v]
9 G( Z' s) |, z! uset [local-reputation] of myself (local)2 G) N, K& Y2 t# S: z
end: X# A5 a5 J+ s
+ K; |3 n* B6 a! uto update-neighbor-total
7 Y; C! M' `2 @6 p9 o) b
( ?& p8 z2 u7 L5 hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 N0 s' ]: p6 L% Q+ U: ?8 |2 k5 V4 C8 B" e2 C
5 y) d) R1 ^) Z1 ^4 {0 z
end
! p6 u: O$ B5 s3 z' F( c5 n: p+ B+ R" {0 t x3 M( ?' p! h* A
to update-credibility-ijl , R0 r, H) ~0 R! g4 O7 G# Y
9 z9 `) M# w; A, D: ~* l;;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。2 q; v+ v7 n+ A8 }1 p ^
let l 0$ W. C% _3 l" p# M
while[ l < people ]
7 N6 z4 ^7 d9 J) e;;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 x, u7 v3 c. q7 @9 K5 U[
6 T2 K8 e3 ~3 L4 J hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 G9 L4 e# N! q" q( z x5 i, T( }% @4 J
if (trade-record-one-j-l-len > 3)& l4 a/ I0 H& t0 F/ q% c$ C& C
[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# p6 |' R5 k# w- m
let i 3# u! v {2 b! `, v d
let sum-time 0
) p2 N) ?' V* xwhile[i < trade-record-one-len]3 @$ x+ e* A% _, S
[
4 B K' `- B8 c7 D; A) |$ Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), W8 i: A" X( i
set i
* s( s% d; e q+ y- Y( i + 1)6 Y( o% L. E! z& Y' j1 E1 j; h
]; @6 N' l) Q# ^* x# {4 f
let credibility-i-j-l 0- l6 e j9 Y( L' ^2 E% d
;;i评价(j对jl的评价)" y$ k I+ ?6 h
let j 32 k5 W& ]" P# X( P' |
let k 41 }: A2 u' W: q
while[j < trade-record-one-len]) K7 e D" l% }* q' N$ Z9 d% _
[
' `& z: ]- @: }2 iwhile [((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, s- @4 u; g7 x. M8 ^1 ?) ~, u
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)
5 D1 n1 F5 j% bset j6 b5 J) N A& c
( j + 1) k0 x4 G5 f% f- q7 C
]) r9 ` m/ ]) w T' @ F; R- {
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 ))& ]1 d5 R# B0 Q: N9 ?
9 L5 N: |, ?3 }" g y; D' B( q% Q( p3 i+ _
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( F6 u" D/ k* P: F# n
;;及时更新i对l的评价质量的评价2 N8 {# _: x9 Z5 `0 P: [
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& d3 F) H/ N( i/ r3 T2 r; \set l (l + 1)
- |, v$ Y# |( a8 g; q]5 `* j6 f8 d& q* n8 r) b
end
) ^2 ] w% y! m7 w* o! c- O
% B& B% G; w2 ^6 N, F) h8 q& ?3 Cto update-credibility-list$ L; ]. O( [; C9 {' A+ d9 I
let i 0
% m5 v9 W1 I; }5 a- Q$ M- o# Uwhile[i < people]
5 g9 C0 n6 Y" @+ l4 n8 d! d& ^[ @ @" {! o I" ]8 c
let j 0
5 u+ V( b! _+ V3 R/ H; Mlet note 0
' R# [/ N. Q) q$ i9 Hlet k 0
, k2 F: I2 f m g;;计作出过评价的邻居节点的数目
2 y& F& ^8 ]% M: x5 }) D+ zwhile[j < people]
0 w+ z( N9 o; X! u[" i8 N. w; R. L+ P) V$ s2 a/ R
if (item j( [credibility] of turtle (i + 1)) != -1): d+ G, j$ q" Q9 d5 v1 q. P
;;判断是否给本turtle的评价质量做出过评价的节点2 _" X& F# p. Z1 X2 t8 L
[set note (note + item j ([credibility]of turtle (i + 1)))
# j0 `0 P9 U- C. y" z;;*(exp (-(people - 2)))/(people - 2))]
, G4 E9 Y8 F4 ?3 t+ Gset k (k + 1)
& y' x- d% n' e2 P9 _7 ^$ l]9 B: W8 q9 A7 O" w) }, ~" \
set j (j + 1)
* R; H* {& M" o, O' V]
( t6 {( W3 e. z0 G1 O9 sset note (note *(exp (- (1 / k)))/ k)8 |% A, I4 G9 W% h& J
set credibility-list (replace-item i credibility-list note)9 q6 j5 E& J7 W0 v0 Y4 Y
set i (i + 1)
/ t" j+ S2 R. |1 V' N1 ^]5 F: S9 O% O" S9 I* I) I1 ]# w
end
7 f8 b6 H1 o! o( L! W- W6 W
& u" E! M/ L O2 V7 Hto update-global-reputation-list( V8 I- p( `( I6 h: C7 O
let j 0
" P& }4 U$ b& [5 B6 jwhile[j < people]
. k( I; W. N8 G4 z) O& t! J. D[) p5 ^1 X; Z# k* Y {
let new 0
' Q3 G1 t3 b5 o8 f S;;暂存新的一个全局声誉5 R% p; y6 W) X8 c4 m* S7 U8 [
let i 07 h' z: W" r, V2 F
let sum-money 0* q# n8 s; m& f" b) t$ L
let credibility-money 06 L. d& |& y5 X5 a2 a8 @: D( \9 D
while [i < people]
4 T2 b6 A6 U: w* }* j[4 I1 s$ @7 q' P" D. I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), s; f5 J7 `0 b( }3 [& J0 B$ ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 _! h5 i6 S& Kset i (i + 1)% \' O- @0 M( J) t- ^) M4 T+ J
]
: G4 n8 n* s. V6 Y) R% Qlet k 0
5 g8 M& D$ w) G- f# l8 ylet new1 0
3 Y/ v2 [7 b G' X$ v& r1 @" vwhile [k < people]
$ _, D# k: o5 @5 e+ h[
+ T [7 S5 Z3 l8 y; C! V( N+ i" k8 Eset 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)8 g+ M* c% T" T! F9 }
set k (k + 1)
' Z6 U7 y3 E# f% d( z2 Z+ w]! _- K4 {6 f o# r l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 P6 `& Y' I0 X' Z; U" R0 j
set global-reputation-list (replace-item j global-reputation-list new)
5 M/ }+ ~2 ^+ d$ y3 v& }7 {9 Tset j (j + 1)
1 [7 H- J$ e) G7 t2 \* r]
9 l: V& O0 N+ l* g1 ?0 t Z6 fend) M5 U4 T% E; [7 b. v/ W
+ y$ s1 i( Z+ w6 q. i5 _
2 \3 v% W2 v) A) @
5 U h2 e* z% d+ Eto get-color/ p) z) T' @/ ^# [
' B. u5 ~7 s& u2 {set color blue
* Z; D% }6 h' A- Aend
: K* C- c* U$ _4 e: ~* [* P$ G% r& w' w0 f: K. F- D! h
to poll-class' Y; }6 i6 l9 E% @
end
6 K& e Y& {! d& G; Z G% b& G6 ?/ r0 L2 q+ v: Y3 G' B) [
to setup-plot1
$ ~) \, m; F( [ ~2 k, R8 g5 |5 {3 S2 k2 F" t: u5 ]! d
set-current-plot "Trends-of-Local-reputation"" z$ Y4 w! I, ?# W5 J7 m
. _5 M4 C. [) h" _0 ^
set-plot-x-range 0 xmax
, d5 ~+ y& ^& }+ X w6 ~3 p
|$ O. E) k2 [7 p# L! y0 z( xset-plot-y-range 0.0 ymax
) |* a! n8 P2 `# x0 M4 yend
" [; Y! S( x& P+ g' ]% G, r# V/ R d; g9 J
to setup-plot2$ g" q- F! a7 L0 X% S5 G% Q) B% k
" {3 i$ z* M; Z% \
set-current-plot "Trends-of-global-reputation"
2 @9 l: m3 R9 V" `1 u" |: d: |: I* M* {3 i3 H* Q: w; D7 \1 b3 g. z- X
set-plot-x-range 0 xmax
3 Y( |9 l9 O$ b1 I+ c; } Z( |+ I
" Z+ C. V" Z; T4 [0 t# Iset-plot-y-range 0.0 ymax2 |6 F$ s; S% {8 J. `! N& c+ G9 N, k
end
8 k1 J: |7 d! }& ~& N7 [
1 o Y4 D( \9 G, O, qto setup-plot3! b8 E% L. m" _$ _
+ N5 S* X l8 t' W% x9 j9 f4 d$ [
set-current-plot "Trends-of-credibility", f2 s5 `" K& S$ F" L
) K7 E( r" p: k% }% h, K2 f
set-plot-x-range 0 xmax6 s. q9 s2 H0 w+ R5 C! e( G
1 D3 F# q9 R) H2 z" |
set-plot-y-range 0.0 ymax- R0 U( W) {- f2 G# }( V7 U
end
6 N" B+ s* x. J4 e- u% h
# P7 s) l# y6 Cto do-plots
- S* h. ^/ O, Vset-current-plot "Trends-of-Local-reputation"
2 ]6 M$ p" L$ \set-current-plot-pen "Honest service"
, e! S2 H# F3 v- ]6 |7 w: Gend
: ]& D L5 }; K1 h9 l
, l. |. m% @& O* F- O[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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