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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) ^7 ?( e* k" T+ s4 p- R4 J+ j# p
globals[
# `1 `2 N% ^- L6 [; ^) `xmax
5 r8 w2 s5 x1 ^6 m4 l) V# dymax
) `- [7 H2 b! I$ \5 b/ _/ Zglobal-reputation-list
) ^. T0 x- k3 c& C' y" z. q& ~9 h) [6 f0 D( l, g A9 M% }
;;每一个turtle的全局声誉都存在此LIST中7 @: Y: W, \, s& q: O
credibility-list! q+ M' a* ^7 a# X5 p
;;每一个turtle的评价可信度& t5 d8 _/ @- F; K& _- f/ P1 }" U/ z
honest-service
# S7 P+ x8 b$ q/ z8 runhonest-service
& L$ f1 ?9 w9 K: q% Loscillation
7 p# I6 e. x1 I6 Crand-dynamic
8 z: {- _4 F. a3 @+ g: W]5 M! J& n% L( w" N; J0 m ]- t( J8 m
9 S& U" \9 I; ^, d: hturtles-own[
8 K' `8 ~1 U& X1 r6 Z; Xtrade-record-all
; C+ Q8 |" l0 O3 l1 |0 @* o) a;;a list of lists,由trade-record-one组成: M* f4 S( q& c
trade-record-one. S7 P2 [3 `2 K9 |; _, @& w
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
. {; z1 _% e3 G8 {0 N+ E; l. i' e# U' b- p
;;[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]]
( c* X: L2 S; H. btrade-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]! C# }1 | h5 z, l& E+ ]2 r7 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list3 |% B4 H, z" H
neighbor-total H4 L# L# C5 Q' {& D+ X: U) p
;;记录该turtle的邻居节点的数目$ X# Z- y5 x1 h+ k; U, R
trade-time; o8 z A; Y+ j
;;当前发生交易的turtle的交易时间- p7 X$ ]' ]1 E; \0 y: E9 F
appraise-give
3 P& ^/ T8 r, j# W;;当前发生交易时给出的评价
/ k; T* I0 X1 M9 R D% L" h/ aappraise-receive
3 D; A+ T, K: T* v;;当前发生交易时收到的评价
' c& f* L3 S9 Nappraise-time
_4 {" h' ?& ?3 C$ _;;当前发生交易时的评价时间0 A3 p9 t4 o- E b
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" C& [( Z4 u# Gtrade-times-total
& ^5 I& W. n4 c+ o;;与当前turtle的交易总次数. S$ I4 c: Z: e9 {. o/ Q# [
trade-money-total
- ^' }& ~; m+ i8 C9 g;;与当前turtle的交易总金额
0 J# u$ d8 D2 M: }5 m0 clocal-reputation) X1 H% ~8 \. |2 B7 I1 h+ c
global-reputation9 S- Y* Z0 p/ e% |1 ]
credibility' D3 F: e: d6 N! Z
;;评价可信度,每次交易后都需要更新
; \* @' i% w% k$ }1 R. ~credibility-all
. T/ y( _6 ]- L( y7 h( k, d;;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
% @& e B5 M' u* q y% w
4 v9 j: M, S* H5 C" l;;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0.50 X' y( d) k4 g" F
credibility-one2 L7 R6 p( i: r8 n8 u1 P: f
;;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. `: O4 U; n8 [
global-proportion: M- c) U) t0 K
customer
4 g( V2 d" }, O% ecustomer-no
6 } ]6 b/ x( {* K& Y4 Etrust-ok2 ^' ~& y7 W) I6 n1 T9 r
trade-record-one-len;;trade-record-one的长度 O p" o# E' @8 @9 a9 a
]* L4 c N) t7 g7 \
5 k, ?) }$ Z$ {& B;;setup procedure
- ?. i M' ?: y# O$ _3 w# K, o) ~8 K1 c0 b v& }
to setup) P& L4 b6 _0 V, K; `) ]# ^
1 P2 `8 Q- X% n. k
ca
- I5 s; ~ b0 R" A- H- }1 V) e$ T8 B4 x: [! x
initialize-settings' k4 g: g2 d/ q7 V+ H
n4 D" d$ D5 O5 ecrt people [setup-turtles]. P! m# B- C, F, [$ q" p5 J7 p
! |7 V' {5 k/ H' p# F# m+ Yreset-timer# H8 k3 b3 |; X1 _8 b2 ~! B
/ t- N, z% e, @
poll-class
& \& L! M- U4 E% a. ^, Q3 L* n; b; X) \1 q" ?8 O. ^
setup-plots9 }( X: ^7 g o$ N1 \
# }5 e* M% t8 a* W# B# p8 P
do-plots
3 ~- |5 H2 g d# H Z* `end
+ g) \5 b1 W, f: K' l$ C% B7 \! e% c
to initialize-settings9 A( g- Q) F6 t
% {' `* e' I( w, R1 O! k! j
set global-reputation-list []
/ E, M/ C5 f' h$ U8 q6 f( e. B( ?/ y4 |" D
set credibility-list n-values people [0.5]
" B7 N* R6 E; m/ c6 \0 s4 d3 I0 ]5 S c% P$ ~/ u5 @
set honest-service 0
) E2 {% u2 L, C" H: v$ V0 W. o- H0 o8 K% [# v0 Y7 H
set unhonest-service 0 Z4 i) S1 e' e* Q2 e
% P- C% i7 \& B) P( _8 ?& t& h: p% Q
set oscillation 06 h" Q3 o2 Y( U8 I' z" @2 D
- K; `5 n7 _* a" N% Aset rand-dynamic 0
5 H, t* r6 r. e. h* T0 qend9 }% m9 x X3 K- v. E
. W" j! n' N o2 k, wto setup-turtles ; s, U# ^" }- G
set shape "person"$ s3 B' T1 [! O0 g1 C
setxy random-xcor random-ycor
9 |) ` H) n% u5 e, mset trade-record-one []* G; R2 Y3 Z( N$ A5 y0 K7 Y p* V
+ R3 a5 s4 k1 Q. D+ b% Oset trade-record-all n-values people [(list (? + 1) 0 0)]
# K4 x) c: Y: W& I5 \0 s. h3 y, K
set trade-record-current []
2 o" Z8 {1 G- v! lset credibility-receive []
5 m& ]! B. @6 U/ @( Qset local-reputation 0.5
8 w4 @9 d* ?7 q( C Yset neighbor-total 0
# u4 e$ K7 I+ k4 e) V D- Pset trade-times-total 0
# Z" y& P8 `8 Q8 eset trade-money-total 0; n. Z6 I+ J6 L
set customer nobody
& m, }8 V3 ?8 c& ^7 {; V3 ]set credibility-all n-values people [creat-credibility]/ s6 W3 v7 u; d) B; H, k+ ~( J5 ^
set credibility n-values people [-1]
! I2 J7 _9 N; c* l! h! h4 ^get-color! \0 v2 {7 I$ h5 V$ ?& i" s% m
1 |+ _* c5 F3 L# _0 ?( m5 ]
end
/ V9 } Q1 }! L. v) m/ ~
# k* V1 C, P% g6 cto-report creat-credibility
3 N0 q' M9 a9 p- Z5 creport n-values people [0.5]: ~9 _+ H* `2 E& i i% w) [! C
end: K( V! u: Z/ ~. i3 E
$ |( X3 J1 j& A: jto setup-plots0 I% z, @$ Q" h6 m. T
* r' z1 Z; a0 qset xmax 30
+ c/ M% G; @7 }4 `1 _) e. s- U1 {" j/ O) n0 U) ]* ]% @" o
set ymax 1.0$ C" [! e4 u. H) }3 t
* ?0 D4 _' i( [. C( k* ^clear-all-plots
8 z) u o& _# U. l8 \" M! N
) Z0 |; o. v0 b5 W, R" k' k9 f6 bsetup-plot14 N4 x+ x3 [( c
, D$ Z: R% o6 |+ u% j( R. ^. R# U
setup-plot2
9 r9 i4 b; i" T4 q2 p3 v$ F* b( z7 @% ?# G" u0 p
setup-plot3
3 B7 o1 e" z8 w9 x! {3 @end+ K8 f0 }% j2 c# k* ^
( d$ r' m4 a4 X6 Q/ V; c3 k' B; P
;;run time procedures
2 A: X; a! [9 Z+ K" l2 F$ ?' ~8 v% i/ v1 p8 W0 E
to go. T; \: T5 [! u$ m! Q3 R$ t
0 I9 E8 x& \( T2 a" jask turtles [do-business]: I8 F G6 A; M6 G3 z$ m% J
end
1 N0 T, t, d* ?9 M3 z" L3 c; A1 n; w. Z
to do-business
+ u+ T! ~- a+ A/ u/ ^0 ^- S# I9 K/ y$ |. d
& @ _, O1 {; O% B9 ?rt random 360
+ Q7 F4 s! ^1 V' |+ b: B4 D
: j9 I% v$ A6 \, [fd 1
! ^; k1 M4 [! ~/ H' I
2 H5 K8 l. {- n6 D# R4 @. kifelse(other turtles-here != nobody)[. y6 |+ \) i5 c/ t( P8 O
. j( g) Y1 X. d0 y; t9 e
set customer one-of other turtles-here
) \2 c( X- n. O& e9 y: z, m$ u; W! E4 ` ? Q, j
;; set [customer] of customer myself
5 @& T1 A2 Q& G8 U6 @1 J3 Y; R
Y0 ~. |5 D) J0 u8 k$ Mset [trade-record-one] of self item (([who] of customer) - 1)
5 e3 p6 J3 g4 l9 ~# k[trade-record-all]of self: x8 Q9 `" M, \+ f8 G
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ N! o& X3 {* \: H* P1 ?% |. U2 K
set [trade-record-one] of customer item (([who] of self) - 1)
: B- ]9 s6 I3 V; L9 \/ ][trade-record-all]of customer
9 ^/ a# k# o: h. {
; Y" I4 }* `1 P/ Y) oset [trade-record-one-len] of self length [trade-record-one] of self
. m3 \9 N5 G0 ~8 ~3 F3 V: Q# m m* n4 k% F5 A5 d
set trade-record-current( list (timer) (random money-upper-limit))
! g1 R" |. ?/ z( e/ h5 Y" Y2 B+ ^$ B9 B/ x# d# i
ask self [do-trust]
- c1 Y) o6 w/ |* {;;先求i对j的信任度
! k0 J8 K% A3 J
. O- r# G% A5 ?1 I) x6 Fif ([trust-ok] of self)
8 M! m5 r& e; _- V! M, Z7 w) Q5 c;;根据i对j的信任度来决定是否与j进行交易[, [ G! ?1 C2 s8 a* {* n* f
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 U& F7 V3 e- H; d% |+ ?8 i
$ a8 }/ z6 C2 z! W2 A
[
+ Y* U0 _1 P O; ?+ O3 I* y+ O9 Q+ r5 W
do-trade8 t4 b$ s, }, p- i N4 q& b
$ E( Q! T! _; C/ O" N$ W' {$ h% Supdate-credibility-ijl& c$ n( K' A# A- }; P$ p
" Y j# v$ H; o1 ~4 }, ]/ Hupdate-credibility-list8 b' {+ x$ N5 E9 A) P
- `/ O) c! A* E! N5 ?" X) P
- W1 U) p8 m0 e7 {; Q v4 i# j
update-global-reputation-list" ?4 \% c8 d0 s% ?, J9 y6 j
+ o. J% v% h. ?' p) C L0 z
poll-class
& E7 G2 u# f/ w+ l0 D( N! O, b- ~& F+ Q B3 Y
get-color m5 m8 U j. p: k" a- k3 {
1 U+ y/ B2 `$ r0 E0 ?3 s3 D: v. e
]]+ J' u( N( f) v5 S q$ N
. }( _8 W4 u: L9 E;;如果所得的信任度满足条件,则进行交易
/ v# X, K% b$ ~9 T) \/ b: n5 p1 N+ ^% }: w0 h* b; C ~
[% M! S, |; }+ \, {. a
& Q% z/ m9 ]6 I% X5 ~rt random 360
, L) W% ~. |% u
- o1 c1 [0 S. ?fd 1
9 n7 ~3 Q6 e" d, Z5 G5 B8 j& w& f2 h% k! |5 H9 R
]
! m8 D$ b8 Z- }1 w6 `( h; M( ]* {( L& K% G3 E
end
, V3 _# F! U1 z. s
1 Y! a" |) }, q& _1 Y# z1 Vto do-trust ; K- S: _) t9 B4 P
set trust-ok False
- @9 V* }9 A' W9 O
. b+ j9 g1 r0 o8 h8 k1 l% j0 o. u1 f( R5 c& L: a" u6 a
let max-trade-times 0
2 {' ]1 v) t: R+ Zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 B' \0 B7 V5 v) Q' b
let max-trade-money 0( V0 q; |0 J, x! T8 l& S7 E$ G
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' J$ ~) `/ }8 R( s# ~
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 k% A7 W4 U& m4 `6 L
! R2 x7 n, k' ~& \; d. x' O9 \ {; |: [5 p2 m
get-global-proportion+ B) ~' S) m* o+ A0 Z! ^& C6 L
let trust-value
; X5 U* f6 I9 g3 v' k8 wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)+ l# g; j5 P7 l% Y" \; s% I
if(trust-value > trade-trust-value)1 a9 P# N/ ^; G. Y+ _ E
[set trust-ok true]* J( y# Y! ^3 l* a# u. q+ p3 C ]
end i6 Q" B0 p! l$ a0 P
$ X% Z+ _! b# ]( R6 Ato get-global-proportion, C7 u# P3 `3 V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ P$ N+ G& G3 {" o/ [: N[set global-proportion 0]
8 K3 m# T) B2 [* N. ~[let i 07 n8 B3 A1 p7 a2 u- F: _& t
let sum-money 0
3 q% B+ q7 P% t c/ M% Swhile[ i < people]
" N& Z; T# r1 I) O" T[* }- ^0 O5 J/ O1 j) R. s
if( length (item i
! ?" G. w$ G9 A3 B4 `9 B+ @' Y[trade-record-all] of customer) > 3 )/ O+ j" _ K; D1 t8 ]
[
) L4 V9 G. }- Z3 E, wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 r3 t1 b, I. `5 c5 A0 M" V y
]% B/ ?& q1 ^6 B# F$ K; y9 B
]
9 a* \% P0 v+ S4 @ S( ^9 ~let j 0
1 _1 }5 n4 B9 q# k) Xlet note 0
9 N1 Q1 M3 u" [# R' U m5 @( Y" |* V) {while[ j < people] U; h) n: I0 C! M% Z% q' |
[% q8 r* |& y5 m4 r8 p! _( Z
if( length (item i: C, l2 e. Z! P- d; B
[trade-record-all] of customer) > 3 )
% @* I' s: \. g6 u/ F5 f6 i% P[
8 F! N/ B, ]; s5 w4 Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 G, l7 t, t+ E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)], `* \* s, Y- ]+ h- y2 _- ?, c
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 Q0 t+ ^6 C" D! l: i]+ ^1 q: [' h2 \& b4 f, L
]) R/ {( e+ B+ A& ^! A8 H/ e2 u
set global-proportion note2 {6 C' V* x% Z1 R& r$ b! u
]
- U% K; s) Z9 U: t$ qend
$ B6 q" I* a Y! h9 [/ t2 w, O- }8 `% ~+ I& @5 W9 ]/ z3 p1 M! X# i
to do-trade! R$ ^4 E0 Y1 U! r( I( F0 N
;;这个过程实际上是给双方作出评价的过程: ~0 D9 t' h' w+ {5 u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 q' O' D% O4 R- }& }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- V4 Q2 q: D: t0 u' G9 `set trade-record-current lput(timer) trade-record-current( E, C5 S9 D* D, _/ {
;;评价时间
- L1 |6 I3 f: L+ g: d3 ]9 f" dask myself [, N$ q) D8 W8 h ~
update-local-reputation+ f T7 }$ {9 ?, Z4 _4 u# c
set trade-record-current lput([local-reputation] of myself) trade-record-current* F9 }, Q( c; e F2 [
]
/ S" w) p- a. D! eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( O, ~8 @) z3 b) P* ?# y; Y5 K
;;将此次交易的记录加入到trade-record-one中
. k1 n U+ F9 i$ f9 R7 s; P% wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! s1 l. y# d( q- c( I& A
let note (item 2 trade-record-current )
& ` c0 p4 A# d/ [! Xset trade-record-current
* p- h7 p# |8 [; u1 i6 k; d(replace-item 2 trade-record-current (item 3 trade-record-current))- c1 G+ t; N6 N
set trade-record-current* ~+ S5 x2 m9 r7 v7 w, I
(replace-item 3 trade-record-current note), f# d$ n( E# R1 x8 o
9 w7 w. Q, X6 v4 Y
+ m8 _7 c+ B: Q/ Hask customer [
s3 R4 [% N( @+ Rupdate-local-reputation: W5 j1 p8 v. |- k" ^. P
set trade-record-current8 k D$ Z+ {# u3 w7 [
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) m1 m$ _/ T) \2 d( f
], K. b% x/ |% ]/ Z8 `9 g5 m
8 ~6 D6 i$ V/ T" \- n, `" q3 h
6 ~& T0 I( w! V0 o1 Iset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ C. f0 S A9 q/ `7 X2 U' a7 j, c( W! z7 W$ P6 d
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& z+ B! A2 c1 ^0 p7 a;;将此次交易的记录加入到customer的trade-record-all中( |# n: e( q3 [0 o% U
end
' H1 |6 ~* ]) N1 v' A% G' {+ k
$ ]5 U$ i: S/ b; ?: j4 K- t" H) t2 Yto update-local-reputation
% y$ b7 B& o& m! J* V- a/ sset [trade-record-one-len] of myself length [trade-record-one] of myself# y' l1 q! Y5 O' w
W0 E5 s6 c' o7 @0 O8 s
2 T0 C% K( q& E7 S9 {;;if [trade-record-one-len] of myself > 3 . O: u* L! l( h: I
update-neighbor-total7 ~/ U' a' J' W, _* _/ H* Z( W
;;更新邻居节点的数目,在此进行3 E l, N. O* R- p6 S
let i 3
; P, {- j2 K. g* [7 flet sum-time 0+ Y. f: P& I4 `
while[i < [trade-record-one-len] of myself]; }! v/ U/ k, D% u0 s
[
8 q2 |& \. N( f6 Y" j2 o6 C& zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; ?0 h9 I* C, e8 P; \3 Yset i
8 S0 D$ K4 F; J0 J% A% {$ |( i + 1)5 Q) h. j% j" m: O# B
]
0 a& N* b* |2 U/ @/ Elet j 3 o! s6 o% \0 k/ ]+ Y
let sum-money 0
' S! @4 v! ?& {) ~% n1 k6 dwhile[j < [trade-record-one-len] of myself]3 q3 E% W: b1 e
[
) b2 B% e6 [# T* dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
; G* V% G* G4 l8 L2 Oset j* C2 e$ X0 E+ e8 q6 t6 |4 q
( j + 1)
+ }) A/ ]4 O6 i]* ]4 G9 {6 }& _2 r' h
let k 3
/ ?/ v3 b& q+ H; @9 M. y6 Slet power 0) m" R5 l1 @4 R# C4 ?
let local 0' R/ P; r1 b3 ?: R: _
while [k <[trade-record-one-len] of myself]
$ ~1 y( j# L7 n& a[' N5 R" O& f( j* N
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) : b9 K' D5 Q4 s
set k (k + 1)/ |6 T5 e8 r: i4 T% w( U
]5 w* W9 ~2 y7 I' i5 s
set [local-reputation] of myself (local)
7 D3 m I9 ~6 p3 i6 a+ f0 \end% T H+ t1 A7 |$ ?) b! g
! _. B; u4 f( @7 |2 w
to update-neighbor-total) d+ c% M. P- v* L& J# `' R& D2 }
. |6 g+ B% E* E, {! R8 W
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. ^# W1 I1 t. j4 e
4 Y3 d1 y+ R) i
/ ~" a5 a/ E# send7 m" ]3 E$ ]/ E7 G
( O& v. l# f5 f, J0 \% N* H# ~to update-credibility-ijl
& `5 C3 I" ]/ V8 d* w# k9 }0 I# j4 s& z" t' |$ Q$ ~
;;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。
6 X+ |) y- O( g3 p Alet l 01 h: j: }+ v, x5 @9 _1 d
while[ l < people ]
6 G; c8 b) v" J. z& a; g;;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& e: W2 `6 }) e+ R
[
# u4 U- {- u, p7 G( i! ]" glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 y5 Q- D/ F2 E3 u9 |$ V" \if (trade-record-one-j-l-len > 3)0 |# I D7 p, I1 J% J. X
[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
R; L6 U. X2 Z8 L$ Z* |3 Wlet i 3
* ^8 z4 U6 Y4 X, klet sum-time 0
& L c& C8 f4 T/ jwhile[i < trade-record-one-len]
3 y# ]" ?- `: W! s; A8 B* v( U[( u; k- E) v) x; Y& @' d
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# }' y, r7 @4 c, F
set i* \; j7 d, k; B0 M) V3 w9 ?6 I) t
( i + 1); ?& r% y$ n) j% j
]
7 M! V: U, O) ylet credibility-i-j-l 0
/ p6 M' h. m. W9 ^% W9 r- e;;i评价(j对jl的评价)0 k, H. G0 J! J5 A7 @1 Q# {
let j 3 H0 @" B% \' r+ M
let k 4% D9 S2 ]) v) i1 _
while[j < trade-record-one-len]
2 z5 O) l% p& }: K+ @[
9 k* F& ]0 h% M3 D; R) V X* kwhile [((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 f2 h2 p* Q' N' ]$ o6 `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)$ {3 U# n3 s" ]4 s3 H
set j
% {, [3 Z7 a* x5 h+ }5 ?3 S( j + 1)
& e; W* @" y9 u, h) o, h. k/ H]5 ~5 V, S7 d5 T0 ?4 L$ ~
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 ))$ W/ H. h P+ P ?
0 |% U2 t2 y9 B3 `6 [
* h* I0 E4 U Z+ n. i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 a. Q6 C) H, s$ V. Q# B
;;及时更新i对l的评价质量的评价
v5 V4 ^, A8 f2 iset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" ?/ X( M* C1 |8 v0 Uset l (l + 1)
3 H9 z+ z* ?# X% ^* N6 r( V]
7 ~' L V( C& z+ B3 e- C, Kend' D9 y- N( U/ A
* b6 T& b6 i" `/ R
to update-credibility-list% n9 |0 t) n4 b8 q4 r" p) C( |
let i 0
% A6 C5 R/ ?( n$ kwhile[i < people]+ r9 I- S- G. L+ ?
[
; o: @2 a% w$ _* j: [. `6 {+ Q7 nlet j 0& [9 Q# U- t4 A2 V+ t( ~; y
let note 0
- z6 w7 ~8 v Clet k 0 N' h' J8 A4 x& A9 u' O$ \8 y7 P
;;计作出过评价的邻居节点的数目; L* X) K, w) D( W
while[j < people]
r6 U, D8 l2 p4 A- q[
1 K/ u9 c% }0 m) E! pif (item j( [credibility] of turtle (i + 1)) != -1)
! {% S, G1 L- o7 ^, i;;判断是否给本turtle的评价质量做出过评价的节点! I% }3 c6 v, {
[set note (note + item j ([credibility]of turtle (i + 1)))& U( u3 n {1 ]5 X* i
;;*(exp (-(people - 2)))/(people - 2))]' M& ~9 r8 z9 E! ?6 M4 ~& ~* Y0 p
set k (k + 1), G2 M5 u7 F* G! j% w
]
4 g$ c# O7 m4 }1 h* @& kset j (j + 1)
! J5 \3 D% s7 V1 B* x2 @) X# `4 M]
7 T( a# Q& J+ \" Q- Oset note (note *(exp (- (1 / k)))/ k)8 \: g+ |( w6 d# y3 J% P
set credibility-list (replace-item i credibility-list note)
5 j& Y: ?3 f4 b# a4 ?, R- vset i (i + 1), B5 R4 n4 E/ ]) G2 ?8 r) R
]1 i8 X; C5 l) M" f
end
8 T( V y: X! M8 q3 n3 [) F e# B4 o3 x$ s, Y) T3 V$ r
to update-global-reputation-list8 P( ~& ~+ d3 e) t% s
let j 0
3 Z8 U; P! B: {; a5 [8 A- R6 Iwhile[j < people]
! y% X @0 e, W. U1 F( [# O[
# U) z# R% V: S* M; Q3 s+ u9 O6 A. Rlet new 00 c& W' n! h; H, `5 ]
;;暂存新的一个全局声誉3 Z+ i' G0 S$ ~* c6 b4 p
let i 00 s1 h# ~% G4 [
let sum-money 0+ d% F5 W& d* o: }
let credibility-money 08 t5 l+ R8 ~3 f' e Y2 B
while [i < people]
/ K- l1 H. x4 L. Y[
' X [* n6 U1 n$ F! U- cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); E$ _/ h- e& k4 }6 M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 c$ L. a: u. \, [: V; H% Q
set i (i + 1)
( h# e4 Q; M7 p2 q- T7 y! b% r3 Z]
3 Q* f% o( p5 d) Ulet k 0% y! B/ ?# N, T. L
let new1 0
+ \" r. H. r. Y6 e/ F4 Ywhile [k < people]
# ~$ q$ h# s( ~2 Y5 A[
/ j/ G, N; G R( p+ I# hset 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)7 u+ i. H) Z/ Y& G" H
set k (k + 1)& O5 U; z, }; ]7 \
]
; c2 o* D' p" F& v& ]. e. Z! Yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % V2 ~* C" o0 d" n Y5 w$ M) D# U8 F
set global-reputation-list (replace-item j global-reputation-list new)
; u# K1 u' G+ S. d uset j (j + 1)9 g* w9 y' q; L3 B. V1 N+ q
]' g2 W! v. r: T! [
end
p _# t) N) W8 B7 W# L |( m
: p9 J9 w w2 ]2 ]
3 Y \& H8 q/ i9 `( ]- c. ^, \
4 }& \' l9 ~! K0 |& s hto get-color6 C `& D1 d7 v" |3 z! \
- \2 ?+ U) }$ P! s* `9 l7 e$ N' g
set color blue8 s8 r U. k. Z% Q/ `
end- H) i0 L6 V- h, Z, h; k* s) O2 i4 W
( ]. _1 C) z# V0 Ato poll-class8 m5 C" f* R9 T5 V
end
$ }5 G1 L3 F, ]' E. P" G. r6 t6 a# G$ u/ x# `
to setup-plot13 H' B/ Q7 h; K0 P$ d0 |) T* i
/ e! @+ O: j: Y1 |; [' eset-current-plot "Trends-of-Local-reputation"7 S B0 k7 ~/ S b2 A9 B
. S R3 H9 b0 ~* Yset-plot-x-range 0 xmax6 o3 k V6 ~3 E x# N, E4 D& U3 k
, W0 H7 B7 l' w3 H
set-plot-y-range 0.0 ymax( O4 p; K8 ~$ B- t% ]
end
- M3 H, H5 @8 u: I. u# c1 l% y% i* f. O
to setup-plot2 Y8 f& H+ f r
# q4 H& T3 g% ?set-current-plot "Trends-of-global-reputation"- p( b. v8 q4 }+ f* t9 Y
. R) Y i# k; {* {: Z
set-plot-x-range 0 xmax
/ o& d2 R1 K. p+ I/ M
6 x N: H0 S6 ]9 \* Q7 y- Q, i$ J7 cset-plot-y-range 0.0 ymax7 y* F. O g G G ?7 C1 i F1 |
end
7 o5 r8 S/ y' f3 J" ?
5 x% P# g+ \) E! g& o) q* J5 ?+ U c4 |! Xto setup-plot3
$ Y# _8 ] ~- }" f. ~- r+ [
8 Q t* `) ^: A! N% Hset-current-plot "Trends-of-credibility"1 h7 f4 |: d8 {: }2 @
, {* z% a. G6 |set-plot-x-range 0 xmax2 V0 n. C) {# M. Z2 g
$ S% S' E6 M1 c0 i) D
set-plot-y-range 0.0 ymax
- D; N1 {; h0 u/ dend! U6 O1 b* I1 k) b9 H* Z
0 i& A- ~6 _1 z; b
to do-plots
" K& \* T) K F, B& Mset-current-plot "Trends-of-Local-reputation"% a8 q+ Y5 g2 P/ ^% D6 l
set-current-plot-pen "Honest service"4 D! Q/ C n% M9 I
end
3 }8 C2 k1 i$ f0 x; O, G }, ~
; v" S- r5 E0 B+ I. D[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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