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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, e' \' O7 I2 k# v5 j1 @
globals[
1 g% x* `) a, p6 ~0 }xmax/ g/ l2 w# I/ V$ ]) I5 `' @ J
ymax
( r) Y8 d+ P; u# B% rglobal-reputation-list
1 U) V( e) _, C# B& {! e5 C7 u$ }; m# k
;;每一个turtle的全局声誉都存在此LIST中7 V; e% r+ L( q; @$ [) r( h. X
credibility-list: e& R5 P/ k3 g [0 Y
;;每一个turtle的评价可信度8 p4 ^& |7 ^( M4 @
honest-service
7 u* X( J. }/ y& U0 xunhonest-service4 U1 H/ g: P# ?" x6 E8 L! J: d
oscillation9 F) B: ^- v7 h* i2 o; V* {3 Q
rand-dynamic
" p- F/ i6 Y5 b]
~6 |* g- U6 m' q6 O" H$ {, F/ q# @' q4 M- @
turtles-own[8 q: m( P f3 l9 F
trade-record-all/ F) S1 @ j9 G3 f. I; ^" U5 Y
;;a list of lists,由trade-record-one组成. @2 }4 w) Z1 J. H8 n- {) U8 c
trade-record-one" [% y1 b8 O; t7 W! k1 n0 l3 ^
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( H! U7 e4 E$ h! g1 v; g6 b: }- R: U A: j% ~. s5 \; X
;;[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]]3 L8 t2 u7 I5 F8 A
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]* j- v- v; M/ N) \4 l/ @/ 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( m; j# |: }; ~ Q* J6 d
neighbor-total& G% l" G) X( h+ Z9 {5 F* |) S& k
;;记录该turtle的邻居节点的数目5 L" o# a" w' R4 ]+ o. |
trade-time
; J g7 o$ [8 G5 ]8 K;;当前发生交易的turtle的交易时间' F, x. S6 h& g& p# O
appraise-give9 f- w% L; s o% o, h O
;;当前发生交易时给出的评价
3 x% T! D4 X0 G* b# Sappraise-receive
8 @7 N/ E: J& s3 |/ L) C1 S9 g;;当前发生交易时收到的评价0 b9 B3 |0 a4 G" m2 d2 `* L
appraise-time
1 T- K/ |3 H/ ^/ l5 h;;当前发生交易时的评价时间
1 [7 z* n/ U8 r- `local-reputation-now;;此次交易后相对于对方turtle的局部声誉% [6 s+ N7 G( N* E( b: z- H
trade-times-total1 [9 {; N# i# p) i/ Q1 l
;;与当前turtle的交易总次数
: s8 Z+ c. Z+ |% a" B! \trade-money-total
5 N8 H" }& L8 a: d+ T0 t& i;;与当前turtle的交易总金额3 s* I$ c( a R+ T7 d8 _, e' ]" `2 q
local-reputation
+ I( a2 Y% ?! I/ y" zglobal-reputation+ j# {0 s; Q5 h( E/ x' o5 Q
credibility
2 ?- l- @5 f3 G) C/ c;;评价可信度,每次交易后都需要更新
; S7 _; h2 d u$ ] o6 Acredibility-all% J+ G1 T/ w! P
;;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
" A; x) \- o- \7 S' u' }8 Z
, ]8 a5 y M$ j" I q0 {;;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& M4 G( L3 i4 M1 n3 P% X
credibility-one
4 P* M/ I1 d$ f7 l3 ^% B;;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# b6 U2 p% j8 C" S8 ]0 f) I* C; e
global-proportion
2 o6 p- P1 T) e* qcustomer/ | }. y9 G) v Z x( g' {
customer-no
9 S2 I6 |( z. r% ^; Ktrust-ok I; K8 K" i/ T0 p
trade-record-one-len;;trade-record-one的长度5 g5 a6 v' D$ l+ A* d
]; Y' b6 K8 g: `! C9 k* E# g
' e+ A' `( S9 ~ T& O/ q+ L9 X
;;setup procedure4 }1 ]' h& |$ a6 ]3 E# P- F& z6 Z' @
( E; O3 c2 m0 f u8 Z' U% M7 Rto setup
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ca
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$ d2 M7 E; A0 t0 _" B2 ainitialize-settings& B6 r% y) `/ D) M. F8 E* x
! C% F8 m0 `& d' Scrt people [setup-turtles]
$ @9 x1 C( o s# p. v' b* C) I6 W, N- B+ J( @; I
reset-timer4 x n8 K2 q+ `) R
* X3 t& H! X4 S `! j3 E9 P' U7 Q
poll-class* a5 \4 x/ w) G! o
* T6 D' h' _2 i3 d
setup-plots
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do-plots& W, i6 P% z4 l) m
end
) ~. N! G! F) |$ ^
4 V9 E4 r# M; ~to initialize-settings$ S5 k! {7 D$ O
( q( U4 ~( w% L( I9 I, {
set global-reputation-list []; v; G$ p& `% N* T/ Y4 }8 H
- _& W2 P5 r) \9 ~" z6 o/ s
set credibility-list n-values people [0.5]
5 B8 l. ]" `5 g/ t
$ M4 F& f8 B% w/ K6 G" Eset honest-service 0
. U6 i! e) [/ J& k% H
9 Y1 v7 Z2 u' r0 n) O6 Fset unhonest-service 0
; J* \. F: x2 l/ {& u$ [) k7 ^ P$ m% ?
set oscillation 04 Q+ \& I( [3 S
' r T+ b. n( _2 [) w, r2 f& Jset rand-dynamic 03 l% T. P+ ^( I% F* c/ o
end; N9 X9 c" [% q4 A& m
9 I' Q- ^$ y2 ]9 W" e2 @5 |/ qto setup-turtles
$ K$ Y) p7 I: r; B1 J5 U. {; S9 w/ eset shape "person"" X ]* j+ K$ e0 d2 V) p8 D* a: J
setxy random-xcor random-ycor5 ]! n) r- s5 T3 G" g8 }# g" z4 n
set trade-record-one []
4 o3 P- d8 |/ l) p4 @# m3 P: a# W! M* e$ v$ ~9 l3 m# Q
set trade-record-all n-values people [(list (? + 1) 0 0)]
0 ?+ Z7 Z+ {3 u% @
9 p. x' t# k. L' oset trade-record-current []9 \9 v7 e7 B3 G- } p! i( H- f9 J; Q
set credibility-receive []0 u' D: m4 Q9 A0 a3 w
set local-reputation 0.5
3 l& p ?' R4 l ~: Nset neighbor-total 06 I. m. N8 ]% K
set trade-times-total 0* }6 V" _3 K3 z D" X& b" i
set trade-money-total 0
- s b) B" J- ^2 z" yset customer nobody9 a `% T7 T6 K5 ~7 T
set credibility-all n-values people [creat-credibility]
, h! \0 i2 p1 n1 B* U v1 {) j6 \set credibility n-values people [-1]+ r) `- m( N" t! R& s" g: Z
get-color$ W3 e# P) T+ J3 a" I% S; I
3 R7 Y3 k$ s' z2 \, v! p& j& e$ N, r
end' X Z1 e+ f) |
& I: g0 C3 a( `" h2 dto-report creat-credibility8 x( U- h5 G `) V/ w- a
report n-values people [0.5]! K% m) F, Z. _9 Q) p
end3 r9 ~. F3 K- j: O( R, r
& `. r7 n1 @/ J3 Z
to setup-plots
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+ t, \' z6 O. n1 P' X( {set xmax 308 R" X$ f/ Z: T/ B) [4 d& A
' [( U; \3 f V& W- N+ ?* dset ymax 1.0
( @+ G+ |% A% d( c4 w: s( k- F. t' Y
clear-all-plots
+ J, b4 N( ]3 ~3 x& N/ T' V. |
' |6 j& L7 I7 P* `+ F! e) U4 Fsetup-plot1 w1 H* P/ x0 C! C* e4 ]& {0 v$ k! {
: {; a) v! r9 L5 n* w/ \
setup-plot2( U% B8 m7 M0 `5 [& @
$ t% h/ z+ ~, W2 D" T' a
setup-plot3% P0 z: I k) k/ g$ d- m7 b3 }0 i
end8 n# h& j" [! B6 D. V
, D2 w# h: d9 d! y
;;run time procedures- }( f7 N( m- B7 U' q% L+ ?- h
' }9 V. D/ W# Xto go% l, c; l! p% n1 l! P
+ l/ i! u! n3 T9 R hask turtles [do-business]$ o7 J9 L* ?/ T0 c* ~& u# T* J
end
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to do-business
0 d: D' D' t, k' p. x
7 G$ S$ i9 x. x/ S- D |% Z% C. `$ Q3 ?3 [! |4 o
rt random 360
% u9 L6 o1 U. u8 ^
8 i4 a, N" O) m2 xfd 1
9 v( r* a# d+ h' y, ^9 T6 M: T9 [% z( g# {7 ^) {9 V) T8 ]
ifelse(other turtles-here != nobody)[
0 F% `8 N" q0 u
* T8 i# H- E$ ^set customer one-of other turtles-here5 Q! ?* O7 E, C% W
& L B% n) N6 y1 a/ e s4 y
;; set [customer] of customer myself. c" w1 T6 A6 i) i$ ^
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set [trade-record-one] of self item (([who] of customer) - 1)
- f! ]2 C k& ?8 ^- l$ c[trade-record-all]of self
- n0 V& F" C3 V6 C. b' A;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
?/ A$ \7 f5 p4 \3 K4 f
0 o7 V& G# @0 g6 lset [trade-record-one] of customer item (([who] of self) - 1)7 B: R2 C5 b+ ?& D+ Z) g+ v$ t: t- x& E
[trade-record-all]of customer. c8 G! f/ B/ \- u. f7 W9 `
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set [trade-record-one-len] of self length [trade-record-one] of self
, ?1 w# G& P5 \. V2 _
2 d# q1 Z+ I$ W8 I* l& r# Y1 P# Uset trade-record-current( list (timer) (random money-upper-limit))' G7 {- ~. n) M+ B$ v! `8 ?
6 i3 |' q( A1 G0 k( u$ ^" _+ j* J
ask self [do-trust]
# S& I" x9 l+ Z$ N;;先求i对j的信任度% p" j) H$ m/ m; X1 F
4 m. a# [; ~& B S$ aif ([trust-ok] of self)% B! B0 O6 l! v& l
;;根据i对j的信任度来决定是否与j进行交易[
- H1 U% Q/ _- |% m; i1 gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 F9 K0 y) A4 Y$ z' B7 p8 z Y
0 P( E0 U5 _+ W3 W1 ?) g6 G[2 B3 Z" E- l/ ]4 b* X, p
" I" T0 \/ V" g; B1 x& Z9 y/ g/ Y
do-trade% G% ]; Q* k8 M+ \5 S
, T0 q8 l) T# a* i) Fupdate-credibility-ijl
7 d1 w' }% q& V
* ~# T) ~3 P3 ?9 X; hupdate-credibility-list
+ y, B$ A2 L# S/ J- K+ T$ D
% ]3 L$ X3 Z3 ?( H/ d- ^9 E2 P0 j7 L! I. w) D+ Q5 w
update-global-reputation-list' R* F4 L$ B" R U; d; t: v
* u/ b+ z* k9 Y0 G+ k3 A9 [; i
poll-class; P$ T- a4 p1 C! Z: P: G
6 w. v' g) A! x8 {get-color) x8 i) X ]! w2 q
. {3 H/ I' k' m& Z Q' Y]]
2 I# r* ]5 q$ s; y6 X" g
' _+ o; l& U7 U+ {& Y2 X4 n;;如果所得的信任度满足条件,则进行交易
9 q [% y% a2 ^1 Q9 J& S' `* t) s) ?5 D/ V* W; _# Y. d! M% G4 u
[
# O1 k v3 N, M+ i$ h3 ?# m$ }) b4 x7 ^+ o' G/ h
rt random 360
- Q z' t, V" o! q8 ~8 F+ i- f% [2 F3 e j
fd 1
5 J: S/ D- E. i# t6 S9 o/ ~8 r. e& h8 R+ w8 v
]
2 G3 g7 \' _9 B ]
8 G, m0 w" }% Q2 P$ G. E xend
& g) o+ K& c' y# }. M7 o% ]! A+ N( z. w5 I
to do-trust ; z" |9 P9 B; l1 ?/ U
set trust-ok False
3 d+ v% ^/ o9 @5 t+ @
Z8 K) K$ w+ p, V. z
" I% Q; `8 u& K4 K8 K9 s) G8 Rlet max-trade-times 09 W. _/ ?( B$ ]3 @/ w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* Y4 O$ B& k3 L3 X% x
let max-trade-money 0
7 w" `0 y' w5 A! S: uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 F k; f# z2 Ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 j/ `& B8 }9 [1 i; v" a
. K0 K( x. t+ \8 Z& y
n1 s7 K: X! Z' K% S% C6 jget-global-proportion
2 t9 r1 b& S% O- klet trust-value
4 C {5 |* h; z P6 J, w. E9 ?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)) @; a2 Q% k. b' L8 B
if(trust-value > trade-trust-value)2 d8 k2 G* d7 Y( x- Z
[set trust-ok true]1 Z. @% F8 e' Z
end
. n6 r- G7 G! f1 Q' Q) H3 `9 C$ b( r3 _) D- _8 y; Q1 i
to get-global-proportion
1 K7 ]! x4 N! @4 m2 K1 h; \ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); L. N5 z* _$ `' {# u0 Y
[set global-proportion 0]1 n* X$ c' u5 }- j8 q& {8 R
[let i 0
; k+ h% v+ v9 { r% w4 flet sum-money 0
+ W5 j, R$ N+ P- x4 `+ f- U! s1 ]while[ i < people]1 L! o; L) Z# V' J* Z
[
5 s6 B& ]' c$ ]% {if( length (item i4 w" P2 X! m8 V& k! p. E
[trade-record-all] of customer) > 3 )' v, f, h0 B2 `
[
; m6 H( K7 }0 X3 O8 o, }. ]. r* lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 n0 {9 P1 F5 i. N! N
]
W8 m3 r6 |2 A; ~, x% a6 N( Y]
3 Q/ u' B4 J/ }& ^% glet j 0) r7 K1 e @+ \& j
let note 0
2 m# j( u! K# r9 A; y1 uwhile[ j < people]
, `7 J( b& c4 j. _[% V" c8 k2 X# \4 I! y9 C
if( length (item i/ Y& V8 n) r4 M
[trade-record-all] of customer) > 3 )
1 p7 v: h$ g6 `1 {$ s& G6 M2 n[) S1 r' \0 J0 K1 R* u' X
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 N9 u& w# T, F% Q# r- J
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) L0 C' M% P5 m2 K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) M# l% I, t. j( Q. s1 T3 k! W: e
]' B7 i1 X+ @/ W. y9 A. e
]
; Z7 F% n6 g" p' d5 \* _5 uset global-proportion note u! v N- w4 q# r8 Z) z
]% }0 r" B: F9 ^9 S% s
end' s# y7 u3 T3 p$ s4 k/ M
2 |9 l$ @- t2 D- j7 I4 x% J$ g4 m
to do-trade
: Y5 B, U* H! y: J6 A;;这个过程实际上是给双方作出评价的过程
3 Z# G# x4 {! _1 L jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, E5 |9 A M8 y. w6 U( V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 B* V% P2 q. E! G
set trade-record-current lput(timer) trade-record-current
& N4 v0 @. [% g;;评价时间) s1 n( [' l% |: ~1 l+ |
ask myself [0 ~8 v! M8 {7 Q& D& P' E4 b! E+ E
update-local-reputation
, V g9 J; S. l6 n1 bset trade-record-current lput([local-reputation] of myself) trade-record-current
5 |$ P. Z$ y5 O1 ]: ~- V0 J]& ^9 D' B( z% ^3 r# [( }
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ t/ l6 _# T- s3 m;;将此次交易的记录加入到trade-record-one中
: |+ b2 A: J; o1 d' H% wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: S$ K! Q8 { C3 U- D% Llet note (item 2 trade-record-current )
: d+ m/ q) D* Z3 tset trade-record-current
- O7 L* v. F* T, R4 o9 s(replace-item 2 trade-record-current (item 3 trade-record-current))* q, S* z7 g$ N: _
set trade-record-current9 S( \7 o/ h4 X: N5 ]% V
(replace-item 3 trade-record-current note); o1 d! k6 n! s" [
3 f! w4 T) M& ~; H
5 `6 }& n' I5 \$ k( ]+ U3 u; w, O$ m( ~# I
ask customer [
& R) E3 M' I/ s2 E5 t' zupdate-local-reputation! o8 F! k8 ]; n5 f# G- ?
set trade-record-current
3 a7 Z) ^1 X2 \+ n" |* \(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* I/ R: G$ Y0 q* {. N]
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" U0 p+ g8 Q+ F# A$ o8 [4 R8 S! g! b, V8 Z$ s. O% H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), N5 ~) y4 u- m( j3 G4 M; L
;;将此次交易的记录加入到customer的trade-record-all中
4 E3 }7 Y0 _, S+ ?7 _0 O- L+ N9 [* p3 Vend
Q4 J |! \7 r: A; Z6 p( e/ a. t5 x
to update-local-reputation
. p1 r, o' o* q; h3 J mset [trade-record-one-len] of myself length [trade-record-one] of myself P; w, Q3 `9 u2 d. O6 G
; l, y6 Z; P/ p/ j
6 V% f' C. ]: F$ ~+ q4 n2 R- {;;if [trade-record-one-len] of myself > 3
6 C; z6 w) |4 T2 qupdate-neighbor-total: ~/ v, F2 Z; s$ M o% ?6 H
;;更新邻居节点的数目,在此进行
! l5 x0 a9 g1 X/ u: Hlet i 39 H: l8 O6 E2 x) }9 Q) i
let sum-time 0' G% A$ ~* O- C0 v% K
while[i < [trade-record-one-len] of myself]" `; V: h% e; S( P8 ^, [% }5 k
[
% \* `$ `4 U% m4 Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). [& z; b; G! g- o. G
set i1 w @$ }$ M3 J W# D; O5 u |
( i + 1)
* ?* o2 A( D, {; c- a]' U" ^% ~. ]! w8 V
let j 30 ]9 q9 Q& p' [ k9 q
let sum-money 0
! u; L; M6 x9 n" vwhile[j < [trade-record-one-len] of myself]1 C) u! S! N6 N1 D
[
) A' U* W' s; r c9 Q! M" Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)! u$ l+ `( ?7 t- M
set j
# ^- o2 n. | @ `; Y& A, [( j + 1)
# |+ o& b3 o2 |% ?]* N7 X; T- a) K3 J8 J! C8 X
let k 32 K" \( ^7 y0 \$ N# G) U9 }, ?
let power 0
9 ~* S, u+ Z N/ _# a* g+ \7 Klet local 0
. V" D6 J6 q# ~) t0 mwhile [k <[trade-record-one-len] of myself]& [% b7 r, w3 l: y) W
[
. Q* T* F$ ?% g* |& i( Nset 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 D8 n3 ~" _( l3 Gset k (k + 1)8 V: ]! c* t( g8 Y, w4 d3 ~
]$ Q& l) e. K; s1 L" s: T& a7 K
set [local-reputation] of myself (local)
* a( ]5 |$ T- Yend/ c# V `' V) I/ C% r
6 H9 U2 a$ s' r& t7 xto update-neighbor-total) x2 Z1 C* `9 c/ F" U
" B4 O7 L" ^) Q! A( f2 j
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# X. ]! h$ I E0 p" n
& m" `/ ]3 X/ @0 J3 T% Q
4 j) E7 Y% m9 k' X. L4 L r2 f
end7 X: @- s$ i7 ~5 _) W2 \
5 c( d( q- g* l/ L) O! mto update-credibility-ijl
% Y) i2 J7 |8 o* q) E$ ?8 N I; }2 [; G
;;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。0 f3 q6 [4 M+ ^ u" r) V
let l 0; K6 q: t9 M7 u, z3 Q' C
while[ l < people ]
. c& y8 o3 R( E( x {;;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
. ]; j# A. a0 l1 r$ f[. G) \+ r. O5 S5 N4 r: p6 q5 Y6 Q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) G, N# ?( H8 D& j! t2 d" Y
if (trade-record-one-j-l-len > 3)
, z: K. u5 n0 C9 ^2 I: r/ m l) d[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-one3 `7 R' l* @+ u e" H
let i 3
' G/ R( B4 w6 \2 flet sum-time 0" v' K1 ~3 u2 V6 q( u8 a% H" ~+ W
while[i < trade-record-one-len]
1 p0 O3 Z( P% j0 b& F[
3 u$ o7 i. M& O# Q% O' j6 _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); s4 W$ {$ v6 J3 v8 [
set i" c& M; Q3 s% Z7 B, s; F. c
( i + 1)- e d& r# s( n ?) S4 C/ h
]
2 h8 W V2 e2 Alet credibility-i-j-l 0
: s. D2 Q* l" W# n;;i评价(j对jl的评价)
6 j& v: f- c$ P5 z. q1 Clet j 3
2 o$ [+ v/ F& U8 J3 @let k 4
4 _5 Y: T! B4 j! B$ [+ I6 Q3 Owhile[j < trade-record-one-len]# F& i& W: r6 x$ g0 L6 f
[6 Z7 Q1 c# l8 V
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
3 o! Q: C# o+ [4 o: Lset 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)
]7 I1 w6 {, }; V" sset j
8 h; _' D3 p" ~3 F9 z& [) \ A+ n( j + 1); X6 X, N2 O9 A! M q8 P. F+ I
]
$ v4 t v/ d5 eset [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 ))
- a7 M3 A1 q1 V% N2 S2 G5 h# X! G- f; c) e, `
( s& P6 N! H) C5 i6 V
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- l6 b* ?& ^( @& };;及时更新i对l的评价质量的评价* x# M( c+ w# q; q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& O9 c6 l' S- d% eset l (l + 1) z4 G* G, o# [! w, w
]1 W4 q# q. s9 \' x w2 f; L
end
8 y* P- R" f: p! ?5 i$ w3 j, {1 g$ ]! f3 M* B; L% c
to update-credibility-list4 o) l+ w$ j8 O
let i 0! a2 Q( \" t g+ _4 Z" F
while[i < people]
, V; r& P# P! R: K0 p[
7 k7 {* B) \8 z9 h5 `6 R! _let j 0
& i' m8 Z, q; h7 } K# A7 Q7 A f7 Ylet note 00 B' Q c4 o2 q+ _9 `# I9 D1 w
let k 0' d0 ?- \1 \$ C2 y9 e
;;计作出过评价的邻居节点的数目7 d$ e z$ B; ~
while[j < people]
. d1 l; K8 G% Z$ e* ?' F[
/ U( k% R7 i2 @. j& f9 r- cif (item j( [credibility] of turtle (i + 1)) != -1)7 y$ D1 P2 v2 _
;;判断是否给本turtle的评价质量做出过评价的节点
9 `" x/ M9 Y4 j[set note (note + item j ([credibility]of turtle (i + 1)))1 p3 m* H; q9 ] O* O0 J' c4 B/ L2 t
;;*(exp (-(people - 2)))/(people - 2))]
, X$ `$ Q- s7 H. p9 H5 oset k (k + 1)
3 g" k$ g% T# ^' v], d) e' j% m( ]6 D
set j (j + 1)
- T! Q) T5 b% S# K, r, | A1 ~ T]
6 r$ Q+ s( y' x8 p6 ?set note (note *(exp (- (1 / k)))/ k); [: s1 w: @; \1 O9 m$ @7 a
set credibility-list (replace-item i credibility-list note), \" m8 y" j7 V" Z r* a
set i (i + 1)
7 E0 b% k) u* Q9 M: c]
' I2 ]; z( k# r6 w+ T9 hend6 M8 S8 N3 x+ |; d# p s( t5 ?
9 _& ]* @( b" u6 b( M$ ito update-global-reputation-list$ _5 r. M$ h9 l) }8 U
let j 02 }+ u6 H+ |0 }% Z- }4 j& q; U
while[j < people]! _) h0 m' z( g# b3 Y q
[
- b' c& @$ d6 e7 `( j0 j) Qlet new 0- C0 \" p& q3 i; ]6 R! x
;;暂存新的一个全局声誉+ h! y; w' ~5 A5 c" O
let i 0
9 [. j' r- A0 xlet sum-money 0+ f7 W0 f1 F6 ?: ?8 u+ l, k, q
let credibility-money 0
" _9 y0 |4 Z: q/ w& U. K/ h; L7 Z, vwhile [i < people]
r" U! R* h6 n. J2 I[- z/ \, X; l- @4 N0 `
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 J' B& W i' d" x; W4 V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ o. K9 m& C) q9 F* d
set i (i + 1)
% W. _0 t) f P9 z' B3 G f1 w% C5 w]
$ G0 U, F+ n% E0 [& ^. x$ E& Slet k 0
) K) ~9 j3 e" I: _5 llet new1 0
3 V6 ~6 c% n* z/ x$ i4 K U/ N5 Cwhile [k < people], ^2 l! i& J( w, w/ s7 u0 O0 y
[
1 _( y, |( o8 ]5 N7 L" e& nset 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)! m5 f; ^# V: L2 ^( ]4 U
set k (k + 1)& e- c4 Q- u0 P/ X0 y* D
]
4 W' L# \* ?4 B' W: Lset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / V. T! Y; U3 n! H( [' G; L5 c% y
set global-reputation-list (replace-item j global-reputation-list new)5 a4 u# D! d# m2 d+ {
set j (j + 1)
$ ?* J- m, y ]& V& |' { W]
4 t, \, u" i; A6 {% U6 mend
8 f( j! l2 @1 w& Y* t4 [" z, ]8 n) f2 W
/ C$ d' T" R7 Q7 J6 z9 ^8 |) b: s8 o) ]
5 i& |4 ?: m) W( W; j2 lto get-color# T, s1 a1 q" {- b6 |
+ k |5 S7 f' xset color blue
; e% S S# R3 y( x- L$ s! \7 Aend
& ] v X; A. `" @" \5 {5 p0 V5 z0 N" m
to poll-class5 U; ^% Y# y* j/ ?4 L/ e1 }
end" M5 _7 G0 ?/ R) }
6 Y" W, F/ @1 ?, j$ F% [* gto setup-plot1
& j4 r7 ~6 A7 Q4 x* a) a( _% C& G9 q- `+ v# r: [
set-current-plot "Trends-of-Local-reputation"
2 a. _" W1 [& H/ e$ s% o9 l9 d% R" d: S
set-plot-x-range 0 xmax4 p( h; k! f; i) b$ _. w @
+ I0 a3 r4 E4 }1 C" R" {. J! I1 ^ [set-plot-y-range 0.0 ymax
! m ~0 Z/ R9 o" v* C& ~2 z) oend; J2 G' S4 S) V* Z0 ]
# o( A, k- h9 V9 a+ m' K9 C% b# p3 H
to setup-plot24 n- N' ^4 ], g8 U; F- M
- t+ B7 s: G2 f3 H
set-current-plot "Trends-of-global-reputation": B5 U: l& Z! F5 r6 ^. l
6 Y- H! z9 d0 i9 g H2 s1 @
set-plot-x-range 0 xmax
9 V, m1 a* L$ A9 y; Q% x
& ?6 L* e r) r' Z8 E1 \0 [set-plot-y-range 0.0 ymax
3 i, V% J$ }# y" Kend6 o( B0 @3 Q2 ~/ w' t
3 W5 k0 D8 t f, D
to setup-plot3 t& f8 B5 J8 A; v
0 E) p4 y) }% x# ^: m5 O. @1 L8 wset-current-plot "Trends-of-credibility"
( y2 N; j3 Z; N5 G) W2 Q
+ E9 |9 T. I0 @# wset-plot-x-range 0 xmax2 T& o. v; K0 R7 M8 t( g1 r: G' }
: l4 T" {! v( e/ n
set-plot-y-range 0.0 ymax
2 w4 {9 o# O% G. |$ z) h! i) vend5 d& {$ j( a5 Y) E6 U1 T
! Q9 h; N# V; r @& c( O8 Pto do-plots$ F' ^+ O; v9 H5 I" F! b; M" C
set-current-plot "Trends-of-Local-reputation"
& e9 ^. c* M5 R0 {7 X+ A: Aset-current-plot-pen "Honest service"
, H" V$ x) w# c: c9 |3 q# Lend7 o5 w$ i: q$ V% C. t
7 E0 k, ^ j2 e3 y; F
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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