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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
; ^) [' |; O5 s4 D9 v/ ?" h5 nglobals[
$ P% I( l* L) F- ]2 D0 c+ F- {xmax
( I. B0 Q1 `, h3 b+ n9 f6 o3 H. Bymax+ X3 u: R( S. E$ i/ k& P$ v. @- \; u
global-reputation-list* T! D/ Y+ s8 R4 N
6 d! H" l$ @ c$ t: }2 j;;每一个turtle的全局声誉都存在此LIST中
; z5 B; l4 O" S! a1 hcredibility-list
% f8 O2 I2 c8 Y$ |; u: |1 k4 G;;每一个turtle的评价可信度: S; `* S3 I3 F# _4 I& S
honest-service5 B; L* }3 @, a M" u0 j+ O* o
unhonest-service
& r+ M6 T: E) I {" e {: ~oscillation
1 ~$ I0 d- }5 P0 Q+ ^rand-dynamic6 {' q, O7 x3 |6 Q' G) I6 D0 Y; [
]# K, X: a6 s4 ~: j0 W8 b) z$ S
: o) a. @0 z3 R8 y0 c! [- N" B$ l
turtles-own[) h: P2 F9 O; V# O" |, j
trade-record-all
4 N9 l9 j1 T; N: V- X' n! ]. `; L;;a list of lists,由trade-record-one组成' d1 q0 T& ?& B8 d" {6 C- p
trade-record-one. G* F2 l" e4 C
;;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 i) B3 c. ~/ r5 e
0 y, U$ t* v E% e7 z4 Q;;[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]]
) Z$ v) v& Y% K5 mtrade-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]% ^3 O% z* m7 @6 T
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
' U# E6 c" `$ Q- ^. K1 t+ @neighbor-total4 ^6 E5 p; }( m6 I6 U3 ^. h
;;记录该turtle的邻居节点的数目' z& [8 {4 ~: ~& R* b) p- M$ ~0 d- U
trade-time6 @. W U; `* y% _5 G" v4 }# w
;;当前发生交易的turtle的交易时间' f- `7 V4 |7 _
appraise-give
* l* }( j5 d: a) G6 ]5 S6 E/ ];;当前发生交易时给出的评价
* v" p6 O9 o3 }( d2 Sappraise-receive. V0 m' Y. J& J1 E# }
;;当前发生交易时收到的评价
2 w4 i6 Y, O g5 z# b; u0 k2 o% Happraise-time7 a3 t5 j/ I! Q
;;当前发生交易时的评价时间, N: c; p% Z+ x% L4 C! Q' B1 @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* W' @ G4 ~7 ?) _trade-times-total5 q0 s& p; E: `( Z" `) `9 A
;;与当前turtle的交易总次数
! U6 c; v9 n: L2 i, E# ]' atrade-money-total) m& k M) q# J
;;与当前turtle的交易总金额
C+ `3 o/ W% Ulocal-reputation
- Q9 v1 j6 D6 J j8 l2 l- Pglobal-reputation( D9 e" _( {/ D4 O( ?: s3 Y, `' D
credibility2 L& }( @6 o8 |4 f7 W- P. L9 }
;;评价可信度,每次交易后都需要更新 _( Z: [# o* d' H! x/ A
credibility-all! H% L4 A. u. T7 n
;;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) I8 T3 a6 b$ Q- z; C
' j* h3 k) J8 b7 J5 T$ Q
;;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
9 [" ^6 u0 [" W" o# l9 x( Ocredibility-one
( k' U" |3 N8 q* ]! o- N/ I# l;;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+ D. v7 F! Z/ ~, R
global-proportion
& S! V% x5 a4 B, @: r0 ecustomer
7 ?, _1 |: S0 L" Q0 a- Tcustomer-no
1 @0 q9 r7 z$ i0 n& j, m+ b; _; strust-ok1 j+ {7 w6 P. l# B. T t
trade-record-one-len;;trade-record-one的长度
# n* o1 X7 S# G' Q n]# R l: k! n H) S. L
a2 e# Y0 S0 L9 h! y. B;;setup procedure
/ I$ x- j6 T! Q$ y( R! ~3 i
' F5 o6 B2 g" I L H5 N9 n+ Yto setup
+ r3 `' ~5 X' R3 H/ ~' Q. W3 E
- n+ E9 [' i7 Tca! C- X; g* a$ m# X6 W
# n4 T6 L5 ]5 ~! B4 r, Einitialize-settings" K! \. t: L0 @0 B
- F2 G. G" ?. gcrt people [setup-turtles]* |- q& s) a* d, `
) s6 R$ f: J( B5 n
reset-timer% \# e" i( a+ v. w
/ L( @5 L4 j+ ]+ k
poll-class) H4 V% T$ x& [2 L4 h
% L1 L9 z0 Y) A" [' ?setup-plots, d1 X5 ^8 }3 Z, {% ]4 z. c
. ]2 W! M3 H! d6 J9 _+ ado-plots- ~' @/ R9 p& Z; r! P# \
end) N$ w* {1 h/ m+ R+ [4 u2 K
" Q- z7 c' P% f" [7 b7 W
to initialize-settings/ w* ?& ^- f7 i! X$ T
" Q9 e/ O3 u3 z/ B/ D yset global-reputation-list []
- C. @# j2 _# V; I
" K, e. ~- Q( _1 b& ~; Eset credibility-list n-values people [0.5]7 ~2 D0 m/ ]+ o3 V$ F
0 C6 K. a! d0 L( F, A6 O& rset honest-service 0, F) n, l! z# Y- z/ |
) v$ r+ e0 P7 h& L1 h
set unhonest-service 07 O- O+ P9 W H! O& ~7 ~! u
# s# e- o* @( B/ ^' s0 z/ R) \set oscillation 0
8 h+ `5 x: g: b' k$ }% h+ n/ ]( L* e3 C3 W$ D" a
set rand-dynamic 06 U6 o5 o: A+ I" `8 }4 @* m) n
end
& t$ R5 J1 @, q- K) B5 j, ]: C7 l1 H1 Y4 }( o! z- z
to setup-turtles
; J$ {5 W8 ]8 Q% p" Kset shape "person"
) S% r0 @' f% F9 | a# v7 Rsetxy random-xcor random-ycor' H% l {+ _/ _* s( H) k
set trade-record-one []8 A! S: [( ?" v0 R
0 x! X& X/ h& J- U( t# i* q" `set trade-record-all n-values people [(list (? + 1) 0 0)] & y9 g ?; n. ]( d
0 ^# \7 z N# S8 q2 ?set trade-record-current []
8 x1 A, K$ |* Q$ `6 j- I4 ~3 o9 C2 `7 Qset credibility-receive []7 N6 `2 C5 N# h2 [7 U4 W
set local-reputation 0.5
# u5 Q, N. Y7 \& zset neighbor-total 0
0 d. g1 W) g) `/ o- \. X# O kset trade-times-total 0
" I$ x! P# i8 @set trade-money-total 0
1 C# z/ D* t! W9 C" O4 Eset customer nobody) p5 [! E Y5 x
set credibility-all n-values people [creat-credibility]
0 ~: G0 c& I% `# D- ~0 A+ f9 z5 bset credibility n-values people [-1]& \1 D- J7 s+ r @3 l
get-color
/ P+ L, y T+ \5 ~) g! p& ^! K( s7 ~" c- f. h% k: a* W
end4 [3 j3 m: i; j' t2 F0 m
" ?, x5 T; S3 u% w6 H% [ s+ cto-report creat-credibility
0 y0 |, R# X8 hreport n-values people [0.5]
4 z. Z* q2 Z3 t$ f" Zend8 b. W2 o) O# \. ^
3 I* z% G( T* L7 ~) g3 I
to setup-plots
. x5 Y1 i4 t. D! e5 ?: A4 D) L3 U7 M4 p6 @6 j8 u
set xmax 30/ E' I. g9 _( I0 ?" d% a! d3 Y
5 d' n4 x* L- I _set ymax 1.0/ I* F, l8 c; w3 T! P. `6 a4 ]
5 U1 {1 w$ O; k& m4 @clear-all-plots
# ]5 u& B6 }* G+ G0 i, z% l7 b0 Q# t8 U7 G) ~% T4 Z- X
setup-plot15 K: H# B1 s8 g* O; d
% K" P/ m0 i9 y6 u6 ` Q
setup-plot2
( L3 k6 k4 q3 |+ X
: f) g8 I9 \5 R( [# D. `/ \setup-plot3
" D2 j+ z* E8 S1 N/ uend
7 X, R2 P) z: \; p; m( U% H% Q7 O; g0 e! Z7 Q9 t! K
;;run time procedures
3 d8 s' F& d3 [/ S) {0 @4 e" r& k( G& ^
to go- W, D- H& h* T
5 X2 |. I" r( J z; _
ask turtles [do-business]1 e* E1 b; v {9 G: _
end* k1 Z6 o. [# N
* ~& _7 h2 C" _to do-business 4 V) B" X0 w# i
: h( x' C' A5 B, E0 o5 C9 ~
2 S& B' a$ q" F4 _
rt random 360
3 M; A9 T# Y4 q1 H! j% |; z2 P, B+ @7 ~+ L: `! U( {
fd 14 f3 L; I" t" }: j! H
% M. g8 G9 Z9 b/ U2 Q' Qifelse(other turtles-here != nobody)[+ h4 w. Z/ a, ^4 a* E. w
* m/ p+ z/ j3 ~+ L1 v$ d( Zset customer one-of other turtles-here
+ Q" r- ~2 V/ v! k+ F2 U
8 @1 _# D* ?0 p;; set [customer] of customer myself+ Y8 h, u' C. n( {
* t; H- ]% `! C, I$ z% h% } t1 @7 Xset [trade-record-one] of self item (([who] of customer) - 1)
1 o) _$ }9 I- a0 V' }) Y9 T[trade-record-all]of self, R- |( e# }2 U) |# Y9 a* _
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# V% R. B$ S6 w' \" }1 F
; [% _4 W I. _6 t
set [trade-record-one] of customer item (([who] of self) - 1)4 x0 p4 t) a3 ]/ P5 E
[trade-record-all]of customer# I4 \! g" r( {
: I' d) Y9 A* s1 L7 }; p. R3 D
set [trade-record-one-len] of self length [trade-record-one] of self
/ v* q$ G8 `, b# T/ g/ [ t( T, P
set trade-record-current( list (timer) (random money-upper-limit))$ ^+ G" o( W% r& ~2 V0 S
4 g. A' w. m& d( ^ask self [do-trust]
- Q2 r+ F9 d; |* [, V;;先求i对j的信任度
" L" @ I( n# y( {5 `
7 v- K' u* y' eif ([trust-ok] of self), z: R3 q* d# `+ C; B: w
;;根据i对j的信任度来决定是否与j进行交易[
: ~) o2 |, X% n9 w; a( D8 F; Rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 [7 v. D( Z) {6 H/ o
" e1 `7 w0 D9 j! \. G! j) g
[3 d2 v+ U g! i5 q. C# [
4 k3 D* J: r% G' R, G, K/ d" I" z
do-trade( p: q! I$ Q! L1 x; u
' Y6 Y" w. R6 d7 h1 z6 l
update-credibility-ijl7 q+ }" P9 r9 g6 S6 Z! _: j
7 x8 W+ l8 z. N9 O8 i
update-credibility-list3 r9 L) ~- Q$ `7 Y0 g' F6 A( K
2 D; C' H$ g* _: U
# ~) X. i6 C5 T3 ]
update-global-reputation-list
) ?$ q2 x$ T3 W/ I) k% H
1 E( O2 _* Q; Vpoll-class8 Q* a/ Q% Y( o) p
+ g5 X; V* [ Hget-color# T5 }& ~8 D) I6 F
+ {9 z7 [1 v& r8 o0 a]]8 } B% c/ i/ |/ C/ n( a
0 H& C( L+ D3 m V5 \
;;如果所得的信任度满足条件,则进行交易
* X; j! M4 o' d- D! b/ [) D; a" U( P: O* I2 v
[. `# W% v! D( Q
- }0 F. m9 [% D3 Trt random 360
6 j( Q+ C7 `" H0 O, P! r1 m
7 U! ?$ N; \+ K( R5 e" Kfd 1
. v- Q9 s) [! }. Y1 ?4 ~
$ Z; q8 y1 S2 R]
: r& l& ?' T+ S- y6 f
. U9 [$ f7 `' C5 Fend% `* {# ^4 |4 M$ G5 y
$ {3 h- f7 x, hto do-trust 4 e( `6 T/ D2 h6 @4 d5 q% g" [; ?
set trust-ok False/ u6 a2 W1 X& {
0 K, W9 ^3 {& A
) {/ C3 ^9 p5 I" D2 G' }" ~3 zlet max-trade-times 0
" S- a; {, j* S W4 Z: ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] H O3 g2 h/ G+ I2 @' X
let max-trade-money 0
8 ?1 u" `0 C- V& \9 p% l& G+ v: N1 Zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& `% F, q6 y2 Y& t% ?: d* T' J7 hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ W2 Q) A* @% M* r* i
8 N1 L; _- n# x: ~) b. U
1 p k' Y3 ^* _8 r+ V6 p3 i3 ?
get-global-proportion' A9 {' ~, \) v" M' y! y- f
let trust-value
) B- | [! Y9 |8 |- Qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
! n2 h4 e5 }) B" B0 \" \* Hif(trust-value > trade-trust-value)
& D( T5 W8 M2 H+ ?& e# Z[set trust-ok true]
) O `6 g7 w# s+ q# |end
7 o- b: Y- J/ K8 O7 ]* X, F' z2 j# U3 l
to get-global-proportion6 K+ d9 n5 l, h* I. A
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% f/ I0 y( o _5 @, m4 r; k[set global-proportion 0]
+ h2 N/ s% Q3 g' [4 w[let i 0
7 n2 e/ g& V4 n" V9 L v/ u; g: Jlet sum-money 0. a" ?' G" b7 y& G f' W" S
while[ i < people]
6 ?4 b# Q! g5 Y# {$ B[8 ]6 y* R$ N: D8 b; [
if( length (item i
0 u/ B) y3 }; K3 m7 @+ j \[trade-record-all] of customer) > 3 )8 T j- K9 }1 C8 F$ L" E
[
) l J2 P" `/ O& w. `. tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( {) l1 E# f( G! ^4 `]
, w0 z8 t O: B]+ O- N9 S- j3 }% c, y$ o3 k: k. ^
let j 0
6 E1 \1 |# x/ Olet note 0) F) f/ U$ P# I8 H% g
while[ j < people]
- g5 `# l% T7 x/ S7 n6 m[
( ~. a9 _0 J: p- zif( length (item i
# K) j+ Y- M5 _! b[trade-record-all] of customer) > 3 ), G6 @9 ?# S& e, v- v+ M7 o
[
0 a) I4 d8 Z7 \/ |6 fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( w) H( x# }, y' Y5 K
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! @& q- @: \/ y9 I7 O7 S, z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 k/ o# n" s) ]0 j% \5 K' e; t9 n
]9 Q) z1 w ?* P" [$ }' V9 m6 `( `
]
# S; {: u$ b4 xset global-proportion note
; C: N2 s$ l" P) t]4 d2 u$ _6 [: S3 @& P4 j7 Y* G
end0 x3 {) B' ~: o `, v4 t1 ?6 g& y2 c
$ Z2 W7 b9 i1 H' N
to do-trade: l% x( B5 F1 w0 v6 c( S% j
;;这个过程实际上是给双方作出评价的过程
+ M3 m" D& M8 u0 e4 ~set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 p" d4 L9 F) x/ Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% s6 R, w9 C! ?) b" bset trade-record-current lput(timer) trade-record-current$ v8 I9 U8 P4 V- T% `9 t; d0 l" F
;;评价时间
3 p; w' }3 s6 g+ b7 w3 m' Lask myself [- S( z+ v! j( ^2 q, l5 _
update-local-reputation6 p' z) E8 y M5 C$ Z; Z
set trade-record-current lput([local-reputation] of myself) trade-record-current* j, M( ~5 t; A# E# P" y
]
$ ?9 {5 S! z' x' f0 Oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, V9 Y4 o4 Y- O;;将此次交易的记录加入到trade-record-one中
: h5 u% {) `/ R0 s9 P& ]set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) L( |: \, R4 e G7 A, \+ |
let note (item 2 trade-record-current )
# e: ~2 z, n' E! |' F$ Kset trade-record-current8 _" I$ e) x- A+ L) [# ]
(replace-item 2 trade-record-current (item 3 trade-record-current))
+ i. W$ m& s# q7 D$ kset trade-record-current
) h) k5 }; X+ X9 m. {9 d: n(replace-item 3 trade-record-current note)0 X# g5 S) i9 V* p
0 O! p( e9 ]0 Z; _5 B1 Z/ j3 Q9 V
$ a2 E+ Z/ q! i2 ]0 S! X7 \ask customer [
/ F! p6 `' K% M$ h0 c7 rupdate-local-reputation; \# ^! v" s7 f _/ g! w% x
set trade-record-current
: z+ n, l6 b3 Q6 a. N4 w. N( s t(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : V; h ]9 A5 i; D1 ~
]
$ D! q) P/ s3 A6 I) D: q `$ r
4 |. q* s& ]5 G( \5 J% h7 h2 B8 ]# |( v
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: _, \0 F0 ], ] o% n7 o9 K1 F0 H+ V: c, k, Q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): N; S% ~* r/ D4 Y
;;将此次交易的记录加入到customer的trade-record-all中
/ z2 |6 l# I2 _/ u* b- u5 dend* |1 a( k) s l% N b) u6 }8 ~4 w$ j
8 n* t1 }& F3 Vto update-local-reputation
; y* D6 E, O7 c+ cset [trade-record-one-len] of myself length [trade-record-one] of myself1 @, t- Z4 a9 d- E1 I
2 s/ Q6 ^$ j0 B3 a
Y0 _4 Q# g2 I
;;if [trade-record-one-len] of myself > 3
+ y2 J6 x8 c& Kupdate-neighbor-total- p! x) l7 F# W6 X. s& I
;;更新邻居节点的数目,在此进行% `2 _4 ? B# J2 \ E1 x$ R+ o* J
let i 3
& u6 v9 `1 f0 G/ w3 v7 N: Olet sum-time 0
8 E9 o; y' s- v7 R% g/ w3 A; swhile[i < [trade-record-one-len] of myself]1 G; K, M- Z* N1 v7 M7 i+ q, Q
[
! @, x" D1 N% B0 m* r0 L+ x$ gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 i4 [, h0 o* \set i# @+ a: y( p9 [2 A
( i + 1)
& r. X# I$ \+ }" X, h% s( p s2 d, K]+ ~! @5 I% t& Q2 C* l
let j 3
2 `+ A% a6 g# M: h! n( E# nlet sum-money 0
. u4 l/ n$ {% Q8 lwhile[j < [trade-record-one-len] of myself]4 D+ P4 _* Y- h2 X+ W$ T
[8 V$ F: ]+ H1 {) x
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)5 c' p5 M. j A0 z) x. `: X! q
set j
2 ?, |: W/ t! @( j + 1)- `' k% {5 @( D
]
9 m. Y0 i2 \ v8 y6 I0 F$ @let k 3# K) |* c& S* y. J( L
let power 0
" o/ Y4 R3 X0 h0 Flet local 0
5 ~ [# U; [! V( s0 X3 wwhile [k <[trade-record-one-len] of myself]
$ g/ W# L, l0 b5 E[
& ]# B3 P, T! G+ Zset 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) : L# P% Q3 G5 \- g
set k (k + 1)
$ J+ E0 J! U* q2 M0 g C2 \! f]. b) L: f; U! t. Q+ S& X2 I; P3 u
set [local-reputation] of myself (local)
# X9 E( w. H [! S! Y$ Rend
9 ?; g6 z. a! t% j& x
4 z J+ W9 q/ c( s9 }to update-neighbor-total
0 a& u" l( M# O) T5 ?1 t$ K! j1 [( y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ u( G L X% |
, ~$ E0 b; a( O* f2 \) g
# `0 x2 Q0 X9 H* lend+ e& }5 S% n+ _( ?% [: @9 g: E& q) X
# }* L) g- P* N6 [5 I U- ~% rto update-credibility-ijl
6 u' R' P$ g' ]% _8 P1 @
% q- Y0 Q! Q0 A3 F) K2 m;;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。# C* l9 c& e1 j2 v( ^% A
let l 0
( {! J1 \ k9 A) o& \" a2 awhile[ l < people ]
+ Y7 y$ _% n% v5 h- w: m;;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- q* F9 ?$ o1 m" i+ w3 @
[
7 a; c# z$ v& [' v" ` plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ i- _. {9 e# b: w
if (trade-record-one-j-l-len > 3)2 X8 v% J) C% z6 s: U. S, h3 d: W( H
[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-one4 ]! z3 \, @: o4 d) z; W4 D
let i 3. ~: t! C- ]6 x; {' o$ y: j+ w
let sum-time 0
. c8 }8 W& t8 d( @+ \while[i < trade-record-one-len]
8 K* h" _( H* O% o6 A: R8 N[2 u: d9 I' D5 O0 i( l; a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): I2 q) v* ]4 @5 |0 N/ x9 Z; w- h
set i
% g4 D, @+ J+ p0 Q9 M) o* I9 y/ T5 \( i + 1)! g" L3 e% y5 } z, R: u3 n
]
2 {' J/ J. O7 K4 ilet credibility-i-j-l 0' X, c2 p! c0 k, l
;;i评价(j对jl的评价)/ k6 Q" S/ u, Y6 c: B
let j 3
+ t$ G! ~* M/ m, W6 jlet k 4
4 |; b( C9 E* U8 @- J# J. ~while[j < trade-record-one-len], A# p, Y. h4 e: D2 w0 I
[
8 J2 a: i* v" W; K0 |; Mwhile [((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* T& I5 G* F" t1 Z
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)
# r F& F' o7 W7 a# l$ o( B) h4 ^" bset j
* H I# o9 ]3 W+ R% K/ N* Q8 J( j + 1)
4 e3 \2 ~% G/ a: \9 Q) e# Y]
; ^; u2 [: t3 s) |" ~) hset [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 ))8 ?) O& B3 e* i7 |+ F5 `
. L$ y, m& P1 @
: v0 W( I& Q2 S/ z8 Ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; G- S3 Z. S$ a& ~7 ^$ c! ^;;及时更新i对l的评价质量的评价* v; P4 p3 ], T& a. m) j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% k* G2 d/ o4 t; Q6 t. pset l (l + 1)' V) x* |# @( e$ y( B" O! k' x' w! u8 b
]
% S4 ~2 Z( O1 i V5 J- z) j9 H, hend
$ k1 ^" p# { V% ^2 f% s
& k" X9 i) I2 F4 r1 j _to update-credibility-list! i4 ^! d( I2 ?8 s
let i 0, G+ i% `9 s }4 x
while[i < people]
8 U6 t* g5 e) Y5 n6 X[
9 l# F }* i3 C- w, f; o) dlet j 0
- R- q4 U% H: Q3 J9 dlet note 0* Y( H' k& ?9 J8 c9 v3 u1 N
let k 0
6 o$ V6 G7 g8 t9 g;;计作出过评价的邻居节点的数目0 N; J( ^0 S( A% I: s5 d5 X, q
while[j < people]8 p2 {/ I/ i9 K0 B+ t
[- |$ l! w/ {6 v4 W# f2 Q* w8 l; b
if (item j( [credibility] of turtle (i + 1)) != -1)
, B; n: v+ a5 p- i& i" \;;判断是否给本turtle的评价质量做出过评价的节点
% T) ^9 b2 M7 B( G" e[set note (note + item j ([credibility]of turtle (i + 1)))3 q' d, }; ]8 ~5 A6 O2 ~# X
;;*(exp (-(people - 2)))/(people - 2))]4 a7 h# Y- f+ m9 }
set k (k + 1)
) @: {2 A m# g% M% c8 B]5 v; j# I5 T( I) \
set j (j + 1)& B5 q3 N0 I; L* ^/ d4 R. D. Y
]( n- w% J1 q* P( V
set note (note *(exp (- (1 / k)))/ k)
9 T0 R. N$ Y; _ d& {set credibility-list (replace-item i credibility-list note)# V! W" k' V! @3 O# k* [
set i (i + 1)
4 q1 v. t1 n$ Z* n9 [0 C7 V4 {9 h]0 ~9 K X q' Y( ]! k; J
end
% `+ g- D8 A1 K3 ~+ J( H9 O3 a( ? W; L4 m0 Z. e& r: s& U: S, w$ u
to update-global-reputation-list
) j* v; P. i9 V0 i h' rlet j 0
5 z, }8 j0 ]. y3 U6 p: r" cwhile[j < people]
9 V/ w; R- `1 c+ h. H[
9 `) v3 v- X' E jlet new 0$ B E* e1 d& m% C. F5 _ ]1 G) n; d
;;暂存新的一个全局声誉1 t" X# @0 }# |$ v. n
let i 0/ ?$ j$ T& m& b1 z$ H* k6 B; v* ?4 _4 Z
let sum-money 0' D0 P+ ?1 y* R
let credibility-money 0% X: C7 v+ t' ]- r) j" A
while [i < people]
]0 O Q- Y7 m" }& c$ ^" e, h[
. x$ l9 P V+ i# Q2 `) Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' p" x9 D1 R. D* [8 \- L8 s) Fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 a! m2 z7 `' t6 Q/ s$ M+ F/ lset i (i + 1)$ ~" f! U; E5 u2 e
]+ L4 M1 Z' b( W2 r7 y0 [: F
let k 0
9 J3 H5 y* i4 {let new1 0, |) a2 f5 C# y$ [6 N2 U9 H7 H
while [k < people]
% T% O! k8 b* ]& h1 `9 W[! n9 W) k v3 x, h: {7 e
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)7 T8 ~3 w6 n, V' {# x1 F: _
set k (k + 1)5 P7 T; p) O3 e l/ V* `3 w( J/ G
]
2 R# M0 Y0 Q. {1 I# Z4 ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! ~& o/ S7 S$ B, J/ ^2 n
set global-reputation-list (replace-item j global-reputation-list new)
! r! D* n1 ~. F b# \set j (j + 1)
) V% e& B/ X9 F' ~]: \! [0 c) e u, l
end
$ X' u; s3 M# J6 V/ r$ A* w, I: ^, Q2 x- X; u9 G
9 a' O0 T; @2 d' a# c4 g# H1 D
, i# ` E* T& T. R8 L) h
to get-color& m+ k- C- U6 F( ^* ~% \
0 @6 \! w0 x2 z4 g9 I
set color blue
; G' q, V% l7 e# r1 W2 fend
/ w( Y, ?1 v0 K* A4 {" e" D( l
$ v5 W: g0 U. z' Z" V& K& cto poll-class8 H0 e; J3 R$ x+ f3 v- E( F
end
7 y! D: |5 P2 Y, A( y/ }$ }3 b! C; c+ ^5 K% o, \: f7 n1 h
to setup-plot1
# h- h( z* y3 Z9 X# G. V( t2 U9 b! r& |- y' u$ j
set-current-plot "Trends-of-Local-reputation"
: f3 u5 a8 p& t: ]7 k' G4 e
( s# V# _) o, [set-plot-x-range 0 xmax
8 f+ s/ r( S& r, s! z1 z" ?+ H, c/ s- O: [3 R
set-plot-y-range 0.0 ymax
8 _2 u. ~) x9 Q9 Z- [( Y/ [end( H" Z% \# D8 G$ c
! ]. a+ @3 Z* l; \' ^( Vto setup-plot2
- k3 N2 e, a1 y8 a G9 I5 X5 N1 ~$ W5 J1 e
set-current-plot "Trends-of-global-reputation"
" A: R9 w# O+ m/ N) w% e
' u& k- }* ^8 h/ ~1 M, Oset-plot-x-range 0 xmax
/ K! b% A/ D9 ~) [( W1 z/ w
6 J0 H; F8 K. D, u% Q7 o0 |' lset-plot-y-range 0.0 ymax
4 m4 \$ E+ }/ O iend5 e. \+ R: u# \: x3 F" y, Y
$ t: N+ K; g1 T. A+ U. _% ?" X
to setup-plot3; Z4 l7 Z; ~/ I6 ^' Z
7 R L& b' U: N5 hset-current-plot "Trends-of-credibility". @' f8 E s! x
- Y2 S2 D/ r Y9 h# [/ pset-plot-x-range 0 xmax/ }% Z: _+ T9 [5 |. ^, V
) Z# s+ z. O6 [" Z, g* e
set-plot-y-range 0.0 ymax" u5 t( N# x. j s7 p; p8 L
end
% ~. Q" N9 ] W) v1 Q! s) C( `! M2 J! n( k7 a9 c& B& H" j
to do-plots
- }1 W" N0 K& @- \, N( aset-current-plot "Trends-of-Local-reputation"
0 u6 j. R; f* Z3 \2 Lset-current-plot-pen "Honest service"+ }' h3 `' M' N$ u
end
* }1 Y7 G' c. N) @( E! S1 L8 i; A* F9 H8 ~5 p! X- X: t
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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