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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
( A- S% p0 j( B9 ^+ O9 V0 G) vglobals[
7 h& `2 Z, j6 I/ Axmax" A& S( M) Q* P0 k) m! k/ `
ymax' S$ s/ j2 d b* u4 H1 X
global-reputation-list
/ D& ^7 J- k A# w; F
8 l- q$ r: L/ j( z" E4 J. m1 Y;;每一个turtle的全局声誉都存在此LIST中
! o) x: J! Q! r1 Scredibility-list+ b8 i- `5 P. d
;;每一个turtle的评价可信度
7 e* v( q3 j, [% n6 nhonest-service
! i5 c3 Z: v/ ` c0 T! P3 ` e' O0 funhonest-service d+ d6 K8 S) M& y" J1 l9 s* N1 k* J
oscillation) p C+ t/ t) D- ~4 S
rand-dynamic
2 {7 Z5 M: j3 _3 F3 N: M8 a]
6 S; R9 Z" Y% N- s8 d7 W* c* S0 l5 _% Y! w) F$ y5 @$ h& {- ~% r! S
turtles-own[
7 L! n/ Q7 w" t9 D& X itrade-record-all
: M+ B" b$ C8 f( c;;a list of lists,由trade-record-one组成
$ f; d% v1 r; Z0 U" atrade-record-one/ }- c+ r' u3 J( ]
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
5 P" O' g- D9 P5 G$ Q2 V0 C
' o* U0 Z6 A4 A;;[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]]
" u8 ^/ x: F$ r9 Q$ 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]1 o0 g; V% n# s" N
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
$ }& a/ G+ p& i6 e9 C/ j, |6 j+ W/ ]+ Qneighbor-total! a- a" ~7 |9 X: F) |; y
;;记录该turtle的邻居节点的数目
- a$ h9 o4 Y1 g! [1 Strade-time& M( ~7 E* S. ]/ j
;;当前发生交易的turtle的交易时间
6 ^/ ^! V) F$ P+ Jappraise-give
" H( z" p. n- }0 }* J;;当前发生交易时给出的评价
5 s4 @- q$ |) v" z1 v6 a, X% n4 k) Iappraise-receive
5 T% m: v9 Q. q0 M- e4 F;;当前发生交易时收到的评价
* R" h; x* {1 B+ g6 u6 z' a( `6 Mappraise-time- ^7 Z; B. B# r8 z( Z* e* [& o
;;当前发生交易时的评价时间$ y! n* F6 p8 E( u2 s& j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ M' G+ g$ I; I7 C7 m
trade-times-total) ^$ }6 b* {' z8 w9 B( c
;;与当前turtle的交易总次数
, f% w a/ w/ E& g$ g3 vtrade-money-total
; n* d; f0 K3 F+ Q;;与当前turtle的交易总金额$ M N9 b0 V! a* K: B
local-reputation; y( j) K7 H6 H( r9 r. G
global-reputation0 l8 o( E: y8 V. h4 z1 {
credibility
# I" I% r6 U i8 w9 t+ O;;评价可信度,每次交易后都需要更新; d) I8 U! d, y0 o
credibility-all' a# f6 c/ q1 Y4 [" C; E
;;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; H) \/ `8 K) J! v" ], L5 H
" ?7 `& Y0 B* y1 B; e) x
;;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
! ?5 r' V6 g0 Wcredibility-one
3 Q) ]. v% U1 F# b5 R( r) {+ A;;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; v8 C. p8 P- Q! I
global-proportion
1 S" q8 h! j) |customer
2 X4 w" i* I/ bcustomer-no( q+ M1 Y9 [' c3 K
trust-ok
" w4 c, F& c0 o ^6 ^1 Jtrade-record-one-len;;trade-record-one的长度
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, F& p& E4 [" k( `0 c( J7 T;;setup procedure
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4 {9 P X: H7 ~to setup
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+ q0 Z& d; @6 Y' e7 c: Hca# c/ R; h: B4 X4 q8 H
% b( o9 D9 T3 Y- rinitialize-settings) n) `( }7 C! \6 i+ B/ i: Z0 Q' _- e
% |6 Q$ m% K% D% ?6 v M
crt people [setup-turtles]
! C( [' X% w% U/ _1 z- u" z' g% H. `4 ^- _$ i+ X8 H" B
reset-timer
9 A" v, l% h% p( I, y E
8 E+ G/ T5 j& spoll-class
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setup-plots& D; W6 S( s+ D6 N* Y/ _
5 [! { g" S+ z9 f- ddo-plots! B8 ?& a* ]7 E- l; y) D# l
end7 D1 d1 J. Q4 c4 @$ T
" d1 y% r @+ i; u# f" Gto initialize-settings7 t, b+ A' X5 K
0 A& @9 g8 L# K0 f) Pset global-reputation-list []; f; }0 t( l( X1 ^
- Q8 L/ f y/ \" U/ }1 Z; _' m
set credibility-list n-values people [0.5]
, [" E; P1 ]' C& s5 C5 D
) d6 F3 G% i/ {; r; F2 F5 k# {set honest-service 0
+ u# m0 A$ U- F( t3 y( w( R/ i, i- S. z& r# }% A) T& l
set unhonest-service 06 i+ m& v/ ?1 N+ K% S. J9 Q& p
# D! W8 z. M; \
set oscillation 0
4 _' I. A2 u; {: Y
8 v0 b/ c2 s) P' E) u j0 q$ wset rand-dynamic 05 X6 G# N* b8 G
end
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to setup-turtles & ~5 u6 f# W% o$ b! z6 L
set shape "person"
6 r U" b5 g; L# P5 K5 j4 ?setxy random-xcor random-ycor: ~0 a7 ?5 w4 h/ z. V; O" W
set trade-record-one []
. { ]9 j7 V4 ?
/ X& }1 x5 X4 V9 p0 w3 t% s5 f( Tset trade-record-all n-values people [(list (? + 1) 0 0)]
4 `& w3 @) v; D( D
* X" b- J4 j Yset trade-record-current []
+ W/ l2 E) X8 w& ^: y$ rset credibility-receive []
* ^# y( w M: _7 vset local-reputation 0.5. k' {% K( x F7 i i- o
set neighbor-total 0% e3 ?' L* [& Z! U# ~
set trade-times-total 0
. f" N' U$ A9 s# [/ o: }! \set trade-money-total 0- J8 R" V4 o& f ^* I! o
set customer nobody
( A& Q- j1 |$ X: c* s+ Iset credibility-all n-values people [creat-credibility]
; @; b% N$ C Q9 aset credibility n-values people [-1]) G: a) |- c; n- d% B
get-color* ?& L" q3 M3 O: U
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end" W% y7 c" U. U! R( g
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to-report creat-credibility# L3 W! Z; R8 x9 a$ ~3 P
report n-values people [0.5]0 }+ P+ [. e" |, N) `% P* D+ h% X% G' d
end
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to setup-plots
2 X0 m/ P$ a% {. T, V! i2 H5 g' L7 r7 A( |) e
set xmax 30
+ q) ^- M# Y# o
! a: G. C4 X; k5 x+ ?set ymax 1.03 O ]2 D% r/ k
; z; F& O4 T# A# X. f
clear-all-plots/ \& e, P4 w4 M o0 b
, W6 f; P+ M s2 E" n ?+ V/ ]# P0 Rsetup-plot1# c, U8 ?( \) P
3 H/ `: a d' Bsetup-plot2
0 j6 Z+ R4 Q# q& t) E) D: D& X1 d/ g$ \
setup-plot31 w- p- \6 k' q8 D1 A. x& u2 L1 O
end! v6 R8 T( ~* o' q2 _
' V8 _3 h5 J4 [- _ F. Z
;;run time procedures! z0 z. O5 K- s9 \4 J! q6 U: C" O+ W1 M
: k' m) E( Z* {2 q8 @0 b7 gto go$ v. U3 \2 u: D* A8 N% P
2 W \# y: G# S3 pask turtles [do-business]
8 j5 L z' k8 K. w, b! Hend
* q3 L9 {' W4 X+ g5 r/ R$ w& P& `' j' @- I, k
to do-business / K# `4 L5 B$ t8 w
" _$ t" B' q' v, b3 D* H" t- m# N+ X6 v3 k* V: |
rt random 360& k( s# O3 F, W' t. h5 ^* p8 s
! _5 N- K/ `2 H& B( k$ {7 D# s" {
fd 15 u" V1 b r% U9 b8 W
6 H4 J! b% w; w6 |9 `# x9 h, i7 w$ V8 J: C
ifelse(other turtles-here != nobody)[
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( a6 e& K; D, C- P8 V/ a2 Bset customer one-of other turtles-here' V# b1 Q5 s" t6 r) T3 W
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1). W8 \+ B% J# W) v5 d0 d" A
[trade-record-all]of self
6 D4 p1 V% J8 u$ m* Z( T;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ B# j7 B1 ^" `0 r
+ K( [$ f& w# _set [trade-record-one] of customer item (([who] of self) - 1)
2 D( S# O5 Y1 ^8 ]' f' y[trade-record-all]of customer& v% f4 k+ ]8 f; Q
# W: J# |) _5 Q" ^6 v/ W7 W
set [trade-record-one-len] of self length [trade-record-one] of self
) o3 @. ?# a3 n1 X! o H. D# w: o* C$ J+ C/ Y) h! f
set trade-record-current( list (timer) (random money-upper-limit))- x9 R6 C7 a `, b
7 N5 k' x0 y& F4 |2 e6 E: ?: wask self [do-trust]8 F9 @8 U% t4 n8 t' v; P
;;先求i对j的信任度
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if ([trust-ok] of self)6 g9 w* j; A, o7 R% c- I
;;根据i对j的信任度来决定是否与j进行交易[
* }. p( o4 i3 d4 X4 c$ Fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. ~7 @3 E0 c. X$ g2 J+ a2 ]. F+ w5 D3 i9 D
[2 n3 d$ r3 E" t$ n, K0 o
$ V' q u, S8 L) p5 f: udo-trade
V0 s% _6 x/ _5 L) a3 U
6 i1 i' F+ {! a' c! Jupdate-credibility-ijl# e! C% e8 [, }+ N
, p9 v, P2 H0 j) |update-credibility-list
; h: K/ o1 E- ~/ @0 ?: q9 X. I* O+ Q6 G$ j" M
) w( r- i6 T! S2 {8 C# h1 r% r8 lupdate-global-reputation-list
1 {* ^$ H/ W' k8 _! z8 p+ N0 W" m" I, j0 f% G) B6 w, N, \
poll-class
J7 {: N4 j/ L, {& w5 B ^
4 A7 W# { G' z6 B8 s' }3 d% Eget-color) c1 j/ B% r7 I* j8 E9 e! R
( p5 j% c6 Q4 B1 J; o' s! u
]]* F0 i* e7 E! c9 \- o! v# r
' |6 g5 o+ a+ k* k! A$ k. w;;如果所得的信任度满足条件,则进行交易
& C+ f) ?3 G. ~$ ?
. E2 G+ A3 `) h4 y- A[
4 q# l; u6 a, ?! v& I, ?0 d7 e& R
, @% y2 a5 P, S& jrt random 360
+ P& `9 M3 H" M3 F' M8 M# l/ r
4 }5 ?- v/ f4 z1 Xfd 1. |% F* ^+ S" G1 L) n- C/ v3 I: e
5 i6 Y( E2 n/ n, p]# Q. |; N. l! Q' [8 F; y1 a0 k
7 ~( {* J- a. h
end4 c9 o0 ?- _7 B, |9 Q
# m# A$ B5 W. [& s
to do-trust 7 H) A% Q( A8 n4 P% X
set trust-ok False% H- n8 D& e- h" J# L
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let max-trade-times 06 ~' I2 _+ l, x5 b
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ v. {+ j& j# g" k) f
let max-trade-money 0
* m- f/ o% _) s: }/ Xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. Z1 W% w2 I6 R- w
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- ^0 X4 W& F+ A% F* [2 Z
g+ P, Y( y7 n: P5 X( R8 F
. Y5 W( }: g4 Y9 pget-global-proportion) ?* f* ]7 V& ^& V: n) B3 s( D4 Q
let trust-value# `7 s. q3 D: R6 w, |
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)% Z$ P* H [! |3 X' K% A% k/ u' M# n
if(trust-value > trade-trust-value)$ \3 l4 s0 C4 g( D- a& D3 T+ I. x
[set trust-ok true]& t& t) g* n$ a/ R5 ]
end
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to get-global-proportion
; B0 |3 O c" v/ C( tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ l" B6 `7 f! ~$ c3 u* O3 _
[set global-proportion 0]% e. U0 L [7 a) U2 G+ D
[let i 04 F% |8 m7 f$ M$ e! P6 m. ]
let sum-money 0& l4 p W4 E0 M0 d8 J* i
while[ i < people] k- R2 j7 C& K( c1 o2 Q
[" ^- i9 X+ G& B8 l/ F! a- e# V1 a; J
if( length (item i$ C# }2 R0 S! ~5 G' ~
[trade-record-all] of customer) > 3 ). m( ^6 k5 {1 U
[
& m9 j( P, x# P1 A5 Rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 K+ x" W1 S; I. \]
( G( D% U. G( r$ k- a" v]
% E5 D8 C; A: D6 T) y/ P+ Vlet j 05 Q0 g. X- o% P8 X+ \3 w
let note 0
9 [* _3 a8 ~0 Q% j- U7 h y/ Vwhile[ j < people]. k/ _9 Q, }0 X- h: Z
[ i) c, B( z7 J0 y
if( length (item i
4 L/ |1 J' x( @9 i1 e, M[trade-record-all] of customer) > 3 )9 B) C8 \7 [, U" A" _
[$ ]0 Z: r% J( p4 b) ]6 L# W: p, O
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 P7 E, W c" L7 d
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ L G: j3 k: m! ^( I6 A: f: I) }
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 t" Y5 j, `( A]$ J7 e- O0 r. d) t' w% \
]1 ~" } K" a$ ~
set global-proportion note
9 w5 u( S( Y- |9 B+ |6 U% C1 `; j]
* M9 t, s2 P6 @) G9 N6 F5 Zend4 p6 J! b$ s4 ~% i0 v6 ~( Q0 f
, t5 c4 Y Y+ L* G$ i6 R Hto do-trade
+ g H' \4 u1 [;;这个过程实际上是给双方作出评价的过程8 ]" J, j' U" `; a; e: K) d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 k9 z5 B, v9 b' D4 Z! }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& \+ ?, R# F( n, ~; zset trade-record-current lput(timer) trade-record-current
& p; u' F6 X5 G. P+ d( b! Q;;评价时间
) H: L# H8 S6 M3 P1 k0 Rask myself [2 ?0 c3 Q/ | T- W
update-local-reputation
% s* s- r' T1 b/ kset trade-record-current lput([local-reputation] of myself) trade-record-current$ H# J; P9 W! u
], H ^% c5 M7 J d9 i" u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. @! G; J* j! s M
;;将此次交易的记录加入到trade-record-one中, ]0 C# K+ d, U) ?% T7 x! }% V& x
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% s0 F, f7 y, z) n
let note (item 2 trade-record-current )8 P& ?' ]) R1 J0 ~8 U4 `
set trade-record-current
' a) \$ O; C. |) z- W2 r(replace-item 2 trade-record-current (item 3 trade-record-current))3 v$ s0 q+ n4 P1 D
set trade-record-current
; C+ t6 M; E3 ^(replace-item 3 trade-record-current note)+ m6 T) X( R2 g* n0 b0 H. Y! d+ z
. `) T. O+ g& n- n5 C v" c6 M; V: s
% I& g% v- V* U* Kask customer [
% ?$ L# P, D$ p; I1 _update-local-reputation
- I4 l8 L2 D. r; A/ N oset trade-record-current
8 N! ^: M9 P3 N8 G3 T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 X% n4 u2 [$ N- `3 L& N
]0 K$ I# Z- D7 ^
" o1 X+ \( A1 |
4 Z$ a8 R o q" W8 J+ v
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- n3 c# z: J8 d) f" J
; [6 }+ c7 t! [8 ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. X+ m; {8 M0 M/ S J; i;;将此次交易的记录加入到customer的trade-record-all中5 }% N' e. G5 E, ^* l0 Q6 [: w
end
3 W8 W' _( ^/ S1 p! |# _0 h* w3 ~8 ^ ]
to update-local-reputation
! w; }" @: x. u3 ]3 n) Fset [trade-record-one-len] of myself length [trade-record-one] of myself, g; T( C% ~# l
; U P8 `' _5 j6 I6 X
0 ^ V: U h$ T( o, I" @;;if [trade-record-one-len] of myself > 3
: F% F9 b7 A) Q3 Xupdate-neighbor-total
3 c6 | G$ }7 T* h9 N0 n& ^;;更新邻居节点的数目,在此进行( z/ O+ s d( j W" f3 p! s( [! q7 p
let i 3/ ^8 a( n4 l1 s
let sum-time 0
* n% v0 S9 e6 s! F/ v& Dwhile[i < [trade-record-one-len] of myself]
. Z+ e: U ~8 H1 f[
, {$ q- f& v& @1 T7 fset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( r' s9 I* d5 B/ J; e( ~
set i9 Z% r2 A3 o8 w: V) ^
( i + 1)
# ^$ h$ x4 p' X* g8 T]
. @5 l) ?/ e5 P) c2 Plet j 3$ j$ V; h' f4 S- Y: W. d9 W- J" G
let sum-money 0* t) m, f4 h6 Q6 H1 L6 u0 V
while[j < [trade-record-one-len] of myself]" z. l2 P/ P o3 l+ H$ d
[ X: C/ n& ~7 T1 b0 @( T$ {" 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)
" u3 X5 w/ G6 d% r A8 X2 qset j7 T/ T8 M4 ]2 h+ k4 t3 G; Y
( j + 1)6 ^6 P* @/ t+ O+ h4 `
]* c" T# w; b; Z; @& v
let k 3
/ D! J) e! i& H( Y7 P, Nlet power 0
; k6 ^4 b" \9 A7 \4 Glet local 03 y" V& Y/ \9 u. L+ n( P0 F5 W
while [k <[trade-record-one-len] of myself]6 W0 k* W5 o# ?* O& ~
[) V) I9 }; W0 o+ U, ?
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) * e/ d- P* u3 C" X+ t* L
set k (k + 1), f8 `' c8 g6 ]7 t
]$ p" n4 g& Q* y3 Z# c8 o
set [local-reputation] of myself (local)9 Y1 f: E% r+ l
end3 @! [0 E; w. S# W" ?0 N3 \
2 l3 Y* m+ `. A& u: S Qto update-neighbor-total
! g0 J, x3 l J" b
9 i- K" \9 d: x9 b3 z; G7 q1 Fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- P$ ~5 {5 i2 g
4 \0 u; G- p& ?; L- I
: s4 v: \; O8 h# ? P4 zend
3 q6 b- o) Z( y; K) I: u. S
" B4 e A/ h: d" C; \7 cto update-credibility-ijl 7 ^9 w2 e& b/ ?
5 S$ l& Z8 B$ H) F9 a) m3 b
;;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。
( u8 L* [( x+ h$ w0 M# P+ T2 W+ zlet l 0+ |4 Y1 J( e! O5 o! h
while[ l < people ]
+ M* C- H# v3 y4 ^% Q. H. H& P;;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
; @0 o8 h) q5 a# [/ c5 r[
; L# @5 e1 C8 g/ F, J# R: p) V% z tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, o/ q2 q0 a2 x! @, t" `if (trade-record-one-j-l-len > 3)
. O3 d8 k9 ~+ T# C/ Q/ z2 Z- S[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
8 j+ T" {! Z2 S) U" |! M1 d2 Elet i 3* }" F) D. V) O- _) _: c
let sum-time 0; ]! J- ?/ C' w# s
while[i < trade-record-one-len]
z+ u) A+ W5 T: G8 K' Z( b[& h P& H& T6 U
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: q# A; \7 {5 H& Z" Dset i
( D6 r3 I- I% `7 _- C1 a" b( i + 1)% n1 l: o# d0 O4 x
]+ F i C5 X4 ^: i8 Q% J
let credibility-i-j-l 0
8 a8 [8 R1 \; ~; R7 g2 J$ c;;i评价(j对jl的评价), f( ~4 h. K5 p* L+ Y
let j 3; b% G* T- e. l# [* M
let k 4' i$ N* ?1 a2 l6 y4 E
while[j < trade-record-one-len]
- P# z! r: ^0 z, |+ r$ L[
8 K( D' B, J6 C# |& ywhile [((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
: {8 E0 H7 T# ]9 G4 ]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); s, U, J6 C! ~; f4 v* O
set j
' }& Q X- n7 w8 b7 u+ C% Z8 G( j + 1) W; E, L" {2 |& Q
]$ L* |$ R* _! p& f
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 ))/ Z$ Q+ ^. x: O; O, W/ J
' O& C; K; @# t, {) e8 l3 K) W7 c( K- I( B
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# B/ o1 x& _/ o; ~- D6 m;;及时更新i对l的评价质量的评价) Z5 D7 c8 B: @- ^3 F% M
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( {6 U/ D# @% R$ ]" @
set l (l + 1)
4 ^% E" K% U, p( [, }9 x) j]! m# s* a% U9 w0 U) l1 e( e& u
end+ |' S6 B& Y% b3 G& q, H j
) V. w* n+ x2 X# k/ k
to update-credibility-list
( q: \4 A! m; r" plet i 03 k( |7 D Y# M$ a# u
while[i < people]
* L7 H; i! v1 b4 B2 L[
: |" `2 l! T& e* C4 U, Clet j 02 ^, L+ e X# w% s
let note 0
4 w$ Q& ~0 a% g- v$ Qlet k 0
, c4 F/ d; F1 h3 t- N. ]- }) q9 i;;计作出过评价的邻居节点的数目
8 w7 [( Y+ a" X2 y$ O2 l9 Gwhile[j < people]7 Q2 X9 D7 {+ i, I! A( N3 F, `
[
3 B! h0 O! s; b& F% }7 u. h- |if (item j( [credibility] of turtle (i + 1)) != -1), F- p% g' F F$ ^
;;判断是否给本turtle的评价质量做出过评价的节点
4 u" l8 @2 W% } u1 l# ]" A$ D[set note (note + item j ([credibility]of turtle (i + 1)))
! }* @3 w% i, V% m, o/ H! p/ F! F;;*(exp (-(people - 2)))/(people - 2))]9 T7 z& P0 R* D, I. O1 G+ N
set k (k + 1)
4 t2 \; o$ `* T$ y L]* x G0 s/ h2 v) T5 `% j+ o+ A9 ~7 ?
set j (j + 1)
' G1 A. E% J3 \) W# ?]
. ?1 v; l1 u1 V& A0 Dset note (note *(exp (- (1 / k)))/ k)
* D' k5 Y/ b# K6 Lset credibility-list (replace-item i credibility-list note)( s. i9 L6 M5 u# U) R5 T+ Q
set i (i + 1)& q: x0 }/ p3 `
]/ z9 ~5 p: [. Q1 K! G
end* ]' T8 m! {. `3 j v& b
& p, {' N4 @3 T8 E) S6 nto update-global-reputation-list
! ^/ s/ _ M- d+ q# S" F2 ]& u0 tlet j 0
. `* h* p8 N" _( ]while[j < people]
9 R2 j, u# k8 r6 E! x[' z7 ]' v. `/ `; w$ H$ P
let new 0
2 u% r2 z: U/ y;;暂存新的一个全局声誉
' k& O9 w, @" Y! f V5 r4 R3 W& Vlet i 0) d; g/ u; p8 M# Y8 T3 K2 f9 o2 x
let sum-money 0 I1 i# L9 g$ N/ w4 d3 o1 u
let credibility-money 0
8 W+ l) @/ G, M' d8 p/ mwhile [i < people] Y; {- y( `4 |
[
4 o$ L6 d/ l6 p x; P" aset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): t" p+ t4 B$ t
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& Q% X0 h, b; U3 L+ C2 R; A) s2 ]
set i (i + 1)
: c2 h9 C+ h5 o) ]' ?]9 a( T- v; o, t. O2 L
let k 0) W# D3 F) q0 k; g4 K3 O: d2 H) ?3 n
let new1 07 e& j9 v2 h* J" _
while [k < people]: `" F( B: g7 P1 O. P$ Y) N$ ~
[
% ~) U% h, v! c/ Q7 C7 Y* L, ^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)
0 `6 Q( ]) z- M( R( Kset k (k + 1)
5 K7 c. f2 V) Y4 G9 `' w]) h/ W. t# H A; X' X
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# J7 p" {8 @) @" W, }9 sset global-reputation-list (replace-item j global-reputation-list new)
! p# I, {9 T9 U3 Q, u3 q) sset j (j + 1)
! u3 u, o; E5 S]4 k5 Z: q2 ]2 X
end. r" S, a2 I: k" O" U% v6 G0 p5 {
# W- z7 o& p$ G& u
3 H$ ?2 o; K9 b* N
a) ]; Q" a. M8 cto get-color
5 O1 Q! v* ], c5 s" k+ J' X' |8 E+ C7 |) o) S/ b
set color blue+ O3 S! o+ G0 m0 {
end2 l7 i1 Y6 \ H2 b0 ~! S' D- k$ }
$ D/ _: G( s/ w, J3 i! oto poll-class! i& n1 z3 U% w
end
% B- u# A/ X7 J% {+ {5 N0 j- z" `
to setup-plot1
4 h% e+ P4 m' b6 D8 g; p
2 X, N# n, r. e4 Z* g' X; Dset-current-plot "Trends-of-Local-reputation"% X0 J. E: m# ^# ?+ H% r
. }( t. }5 t6 e5 X3 ^1 `
set-plot-x-range 0 xmax# A9 g) \' J' C3 D6 V: |& C6 t
1 S' l- H, P8 G1 hset-plot-y-range 0.0 ymax& s- J" N$ h+ o. |
end
% B; V. o: ^, ~% @3 S" F
) @6 k8 A) r% e; w- Sto setup-plot2
& x7 }! |9 U0 w0 K# x0 y# R: x: N1 H c9 w. E3 ~
set-current-plot "Trends-of-global-reputation": k; [& y7 K& B
1 E: C4 ]: l3 j: U7 z2 `; B
set-plot-x-range 0 xmax
; W; u1 R. v* Z3 u" L/ {" b0 L6 H& j; t# V6 f& ?% v! i% u, ]
set-plot-y-range 0.0 ymax
9 J+ S3 A C: n, q" P, kend% i3 [* s. v) H) L- |& e! w/ H2 ?' }1 _
; S" O. ~# K5 B& |# Y
to setup-plot3" K# p" h* [5 Q+ P( x; Y
7 F$ u7 s/ c4 Mset-current-plot "Trends-of-credibility"
6 T. r. y) I. |$ n# @3 P4 V0 N% n1 A- O( ~
set-plot-x-range 0 xmax6 t+ t+ k8 i/ s
\+ z/ |' }; h8 a
set-plot-y-range 0.0 ymax5 X3 r) C4 E/ S/ |
end
: N$ M% o2 H! q5 v! G6 K s
0 a$ I. t* ], u3 B% Qto do-plots
( I5 x1 t$ k% {* Y8 P. _, f2 d5 aset-current-plot "Trends-of-Local-reputation"
' h" T, g9 z; e# h, dset-current-plot-pen "Honest service"2 O4 z! J, i. v* G! {' q
end
- m, `- o; a' k+ D( ?% N" I- ?6 l; M8 q$ @3 G
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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