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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 R, m! a1 J \: }globals[
( r+ [! ]6 u, w8 ~5 V) jxmax& ~3 t1 X+ V! Z) G8 ]8 p" I
ymax; D6 j/ h: n$ ]
global-reputation-list
6 D* I+ h3 W, i
: E( p D- |7 J;;每一个turtle的全局声誉都存在此LIST中
' q7 w& o; Z* M6 I) zcredibility-list7 N0 V! g* ^6 p( L. w. S4 u; U" w
;;每一个turtle的评价可信度$ r: t& \7 y4 d
honest-service
7 O1 q+ k! P& h& M" \5 |2 n! J1 ounhonest-service3 I: d2 S7 v2 o$ c2 D9 }
oscillation
$ `+ A4 w q" G/ \* J4 g0 }rand-dynamic
- D/ F. J" ~9 ~1 V0 D]) b, B& M, P% H7 z0 _ W
9 [8 i; |' q1 i. N3 f! ?turtles-own[
a1 K8 @" ~+ f; K5 g0 r3 p: |trade-record-all
5 s9 K. }# J' S3 }' c;;a list of lists,由trade-record-one组成5 b2 [6 {2 ~5 ^2 ?" F
trade-record-one: ]& P* w: U e4 S7 _) P
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* A) `# p. z: A! `8 j; T8 ]$ K- F
, C7 i9 {/ h3 R P% y2 }+ E1 a7 c2 F;;[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]]" k3 H1 {+ I5 N3 w: Y
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]: \8 s# u! n- O
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list4 {6 U W X6 l# F/ ^" O# e4 e ?
neighbor-total
1 A! O1 @/ D2 C" A/ C* r+ M' \1 h;;记录该turtle的邻居节点的数目' A$ Y: l; K" G; w
trade-time
$ m e( M6 P5 L. I( X" O8 w* A; Y* B;;当前发生交易的turtle的交易时间+ V: D6 |2 }$ i2 t1 `# I S
appraise-give
$ s: m" |' Z; ?;;当前发生交易时给出的评价
" h) E9 u; h; ], p* iappraise-receive
2 P5 }% L! w& Z( r$ D$ O;;当前发生交易时收到的评价 w; _2 T, ~/ r7 V1 Z/ p7 g
appraise-time" }. i* ]/ o# X- Q$ E u8 g
;;当前发生交易时的评价时间
4 U8 }7 T5 W% r3 S8 `& Z! w8 o* ^" clocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
& o7 F* z1 Y- j# }7 g; Mtrade-times-total! \" e& k; u$ W# ]8 ?, K
;;与当前turtle的交易总次数& E& N5 M$ X/ J" W0 g
trade-money-total4 G6 ^ u4 ^3 x7 F
;;与当前turtle的交易总金额
( E0 W7 v. {- X8 Jlocal-reputation0 K+ k. c, C$ W8 t
global-reputation: I- h; ]7 l& M; {* J! `
credibility9 U, {) u' Y' _+ X
;;评价可信度,每次交易后都需要更新
; s9 B7 V+ C$ G$ G6 Z3 r9 C ]credibility-all
( Z) l& k. Z+ i, ^; {;;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
+ y( {* ]0 N6 ]; ?) H/ r; J- r: X8 r _8 a
;;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
4 I) }0 B5 a" ^% P% v0 P: O* Tcredibility-one, @4 d: S) w8 t: O5 A' ]2 t
;;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# z: i# m- y- w O, R) h
global-proportion
- |, F/ p; z" l/ A* kcustomer
+ O1 J& q" @$ m" Q5 K. {customer-no
5 x0 B) l7 x- ^7 \trust-ok
3 c7 l) U' ]3 B8 W# E5 j4 Ntrade-record-one-len;;trade-record-one的长度
5 |# [2 c/ y; u. J1 Y& P& R]
' d) [2 Z" X# q" d, B- L' m7 ~5 F1 b U
/ P# H" F! L# u" ^7 N0 r0 ?;;setup procedure
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+ u3 L0 ^. E4 {% ?( z7 wto setup
P* E" I; V% E' z) }" Y
/ r0 ?9 W1 d9 g% p. Jca
7 N6 J, R5 `# b' O( w1 e& k, E
8 ]- t' D3 Z- N2 \: ]) H) Linitialize-settings* w9 Y% {% t2 T' a, X$ _7 G
* I% B: e- y( @* ]3 S* jcrt people [setup-turtles]3 i+ {' ?% `+ c# ~: q
2 S) x7 g) x' k% D0 h& V7 N- b, Greset-timer! `: R; Z+ Z! X2 k0 i
* G* S& m! g; S9 u) f
poll-class8 N9 c3 x8 `, p6 W- m
4 E. A" k3 Z$ G" \setup-plots& g4 K% D7 V- R/ N/ M
' _3 g0 z( g/ F& @* l. P1 zdo-plots0 ~8 \, n4 i# g* A
end
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/ E) \$ m- M4 a9 O( L& R: S. J2 O) Vto initialize-settings" f- g1 J9 u2 ]3 d+ N2 m
- Z( z' x. ^5 F6 Z
set global-reputation-list []
8 z+ M5 B1 \. s+ U6 q6 A
5 W0 E5 Z& j# f: tset credibility-list n-values people [0.5]3 K6 c1 ~' Q' u7 V$ z; U8 v
7 a2 e$ k% F+ D2 b/ v3 yset honest-service 0' C* ~) M# _' x
. I+ k% u# W& R, ]0 u7 L$ C
set unhonest-service 0. V. e7 T/ V; h* p
# k/ j, ~8 o' M1 k$ N1 W: T1 z9 q! g' H1 y
set oscillation 0
3 ] t0 c5 b- D$ {9 B
7 A1 f0 z8 r# J7 h) pset rand-dynamic 0+ D5 J% v; U! F, A" E, o
end+ x% G& n& L6 `5 B& o" e
; ~5 o0 }) C: V$ n( {+ h
to setup-turtles
0 G4 p, V, {7 }$ Sset shape "person"
* s; y, M5 N- N: c! w D, ?setxy random-xcor random-ycor+ t5 c# \" M e ]
set trade-record-one []
5 ~7 t$ e" V6 q2 X1 @
- X7 F( n" ~. m! O$ B2 jset trade-record-all n-values people [(list (? + 1) 0 0)] ! e3 _+ j5 ~# O9 n( B
$ ?: ^; `, D+ \/ P
set trade-record-current []! J/ V0 N& u! C; I& H& k5 N
set credibility-receive []
: Q/ v2 O- e* w# p: \set local-reputation 0.5
$ Y3 e7 T. |. V0 i, Q- w" {/ jset neighbor-total 0, E4 J& [; z3 @
set trade-times-total 0" l5 A; l# A$ J+ B- Z+ [: u/ }5 @
set trade-money-total 0# X, D8 W* O/ Q, v: N) O
set customer nobody
, w1 ]) \, Z3 l4 Qset credibility-all n-values people [creat-credibility]
4 R) P( g$ C4 x8 |set credibility n-values people [-1]
! d$ J* {' { K- I% ] D! m& f. xget-color
) T* V' @3 `( Q# Z! P0 O
$ N5 W7 F; m7 e/ nend
" ]0 W+ ^/ N- {9 p; P( [. o) c( M2 `( `* ~* F1 X8 Q
to-report creat-credibility: W% z2 E% V, c! V7 O
report n-values people [0.5]: C9 N6 i8 w: Z# Y* ]# o
end
, o4 N6 w6 c7 R4 _! O$ \$ Z; Z/ W$ c3 Q' y5 c) ]6 [
to setup-plots
! O3 J% E' x" f' U. e: I8 D A' R, S7 |* V0 r# f& M; s( [
set xmax 30, y4 L1 s# i) t! X8 m) J0 Q' Y
3 x% ?% Z: d$ o6 H) v( Pset ymax 1.0$ l; i5 I) W0 p; ~
4 @$ Q" G8 m: l% C- M# Rclear-all-plots6 Q0 y5 b' ]* U, ?" Y
$ E. a/ s7 y4 C3 ?- N4 t
setup-plot1
7 F- v: W2 r8 U% U( p* a# b( f3 z# w, d9 J. L5 I9 z: G: Y+ R
setup-plot2
6 g( |0 w1 ]# n" z ]9 H( y2 G, _0 [8 ]& m" W& j5 I$ j% \
setup-plot3
9 p. s0 ^' w J- N! W' |2 uend
8 Z- _; W7 Z0 a9 _
5 I1 i7 q0 Z8 n+ v;;run time procedures2 j) r7 m7 S1 s) J7 C) n9 e
( S. J' Q0 F7 ?8 ?" m4 N- t$ bto go* y# n' h$ f0 I
, O- d' ]0 M& C2 u. ~
ask turtles [do-business]6 ], w$ C* S4 ^4 X) w+ }$ Z
end+ ?5 {4 y* m, f% u
; R; m9 F5 `, Cto do-business
# p# H9 D& h6 Q; ~6 }
4 h0 f+ V! f4 f+ \
7 T& G5 m; d( G" x7 G( Prt random 3609 ~( H/ K S8 E, H
5 I$ q" X' p, ], ^
fd 1
" Q+ \3 M/ o6 i8 n3 n1 O
; K. Y* B5 R- Pifelse(other turtles-here != nobody)[
9 R" c; Y( u! T5 s9 x# f' x! s0 r. N/ g- A; G
set customer one-of other turtles-here' w O: }" W8 L6 ~
2 ]9 Y* H+ J: C
;; set [customer] of customer myself
+ ]* [6 M# `) O# z1 |( L N2 D$ z6 c% V7 [! R
set [trade-record-one] of self item (([who] of customer) - 1)
9 z! a8 [) n" i+ G' V3 V[trade-record-all]of self. r0 l; B6 d* @- ~- }- R' [
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 n; n$ e1 z5 t
0 L" x# I! m* S6 C# N, C7 Vset [trade-record-one] of customer item (([who] of self) - 1)
8 s& J ]# C, o[trade-record-all]of customer6 f' u3 k. d/ j
& h- \" L* \6 \5 i
set [trade-record-one-len] of self length [trade-record-one] of self
9 S% Y9 C! H# M* I/ ]. |3 z
/ Y, X, K, R# I- U. G8 s! lset trade-record-current( list (timer) (random money-upper-limit))
- |. b( N, J1 T& I; Q7 [
# ~% q' G7 t+ [- Sask self [do-trust], B: F4 c5 |8 [3 x. U% K# v; w9 F
;;先求i对j的信任度
$ ?9 D: V4 b$ p6 c: f5 @5 e2 n& m' l) @0 O% f
if ([trust-ok] of self)4 @. e: _& H. ~' U, u* B# ?
;;根据i对j的信任度来决定是否与j进行交易[
, z3 v( z8 q( U! B3 Nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 e2 h' f# }, [
. n- T" P) B( X% h[
; q. }( Z! u" T- ]) [. z% @9 F+ H/ w( `* \ |+ g1 p
do-trade
E; c- o7 | K6 h; e* G2 L9 U( N/ M7 }6 B% N
update-credibility-ijl
$ f! l( _2 G' B5 T. ^; P( r7 B9 v4 ]) T y7 j5 v
update-credibility-list
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- z' E7 O8 c/ r# g/ l% O, k1 |- S4 |* s( r+ x* Q S4 y' P7 P. I
update-global-reputation-list
# K- A# c: D8 n2 S; L* K% ?' A0 y5 v+ i4 @9 a% |: p0 c5 p J
poll-class& K, V; Q- E) _8 `, v+ d6 F
6 o+ F {' _8 Y- c3 ~0 m( q
get-color
# }; m: ~" C& V P
' O- {( u4 T2 i* G$ y]]* ]8 W9 E8 S% ~+ t
$ J6 j0 m+ N/ Z) p! m* P) G$ W;;如果所得的信任度满足条件,则进行交易
' g+ H4 ~2 M7 z$ |) N' U) Z$ N4 Y$ N6 ]
[
" ~, B) F6 u7 z3 o T1 N7 D1 r. v$ @* k9 N. L" w4 w6 a1 I) ]4 q2 S- }& [
rt random 360% o# X0 P1 s$ o
* x' p |* Z9 x: L
fd 1
2 x c5 D' ]' u/ E0 n* N* m( k- S K! P
]$ m/ }( }% d1 C, j
4 G D- G: Y; W9 z
end5 {9 X# X. w# c, R5 t
4 a% m" e8 ~7 X, z m+ t
to do-trust
" I% D9 a7 C% O/ L! |+ Rset trust-ok False
% f& Y% j: T" r& W$ [& G; U( Q4 _' r0 Y. Q* e8 A; D
: |. u9 n! Y$ `( O9 S* Z( b4 flet max-trade-times 0
9 A1 W/ s' I* i, Vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: K4 A: G) Q3 t8 _1 Q- b& e
let max-trade-money 0
& o# [0 @% Z& v7 iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; S# Z$ P3 f* Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ `4 w7 C% W9 V! n. ^# T- V2 L
4 u3 g9 W5 G! l, o2 `: F4 [5 T/ y
get-global-proportion4 T' K" M- |3 x4 ]/ X
let trust-value
0 ~8 D- X4 O* X; O6 Clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
: W+ J3 [/ m. w4 E. ]8 vif(trust-value > trade-trust-value)
# p5 y% p- ~- y: J5 U[set trust-ok true]
1 O8 F; W7 k3 R1 N% h d5 f+ Uend: Q- ]* J$ q0 J$ r2 D
1 B6 F- ^, [; N, X8 ~3 x- ~$ I, {; k5 nto get-global-proportion
- D. F6 p9 A* Q+ |! Z6 Rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), T4 v" L; i2 b
[set global-proportion 0]( V f( d& P5 T6 Y) }1 [1 W8 F U
[let i 0/ D; o z+ Y' ?& ]$ U
let sum-money 0
p! N+ h7 ~% L8 E1 M0 Kwhile[ i < people]
! s2 `, x1 e& `! d5 C2 G9 w- O[
' w, u9 X0 I1 N3 c$ s( S$ y' r1 kif( length (item i( P% L+ t" |$ O) A6 }
[trade-record-all] of customer) > 3 )
, C# m2 p, ~1 }9 L2 b' k( H[
& f! h7 O9 U8 }" b' O- K( Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself)), S' z1 ~0 \ \) W% @; |
]
Q3 p7 Y0 I* E5 K v1 ~( K* D" f9 W]* a! E6 j6 ]5 h/ B
let j 07 K+ e0 j& B$ P) W+ I
let note 0
0 Q& E" m0 @ z$ A$ Bwhile[ j < people]) Q; W: P: W1 o% r5 s% T# ~" x; v
[# T9 V6 ]2 f0 h
if( length (item i0 F6 W& _) l' q2 E4 l$ R
[trade-record-all] of customer) > 3 ); V: m5 R8 {- _
[
) i6 E/ F& s2 `/ n3 U6 N {' C& Jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" W4 k- q2 d! Q: y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 L% f0 O* S2 ?! C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' M3 j; c* b* n( ~! C" x]
' N' w: C3 O0 U# }+ Q]* X7 j/ ]. S: {. ]: b: c
set global-proportion note% ^5 D: {! H E6 k- M
]
- r# m8 R, H( X/ d! c8 K; o o7 N7 qend
) k1 x2 D. }' A
) Z" `2 u7 X* K' k4 y2 j; t0 uto do-trade
) E0 ?5 U; |0 k6 j; L;;这个过程实际上是给双方作出评价的过程( ?4 p: [/ x! b% r; `2 c r% C& Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 z. Z$ r2 A' a# z/ ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ \0 e' n& b5 O* b5 \
set trade-record-current lput(timer) trade-record-current9 Q) y# e& y @2 u
;;评价时间
5 L) K% V& [6 g% S' _/ c/ Zask myself [% m/ k2 o% T" u
update-local-reputation: G3 f* }% q ^5 ^( u3 r" ?
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 l S+ r) l# j( i' I, q]! L3 Y" Z W0 S# D6 |3 R" Y0 a
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' V8 D) q: w8 Y: b" P! k;;将此次交易的记录加入到trade-record-one中
! }# d! O& H, p# P( r7 tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 y$ p) A" J; ]4 H% mlet note (item 2 trade-record-current )
) e$ V4 ?/ s( k- Q, f9 ~set trade-record-current1 P: C$ s% k" ?; X4 ^# Y1 L& V' Q
(replace-item 2 trade-record-current (item 3 trade-record-current))$ T7 q7 u" s9 J
set trade-record-current/ f1 Q" t/ P* K2 [7 B/ I
(replace-item 3 trade-record-current note). Z5 j2 [2 O1 Z% {1 T* Z9 X8 d
5 F# |' Y( _5 r0 L
2 u# L/ c3 H+ X% a" mask customer [
& L& U6 F6 l+ @( e! c( b6 e& aupdate-local-reputation& D& ~5 e8 J) v
set trade-record-current0 o0 t" x4 Q$ l5 {* U0 h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + s4 u8 y+ D# ]* n3 ^9 M
]
% e0 H9 c' b( a- J' L/ `2 o/ ?+ m; [2 q2 l
; S, b5 B: t# e+ a! h }
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) T0 F7 k0 B8 x. i% n
& `& w- o3 e4 B7 Y/ `set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& j* g' t3 P8 N;;将此次交易的记录加入到customer的trade-record-all中1 E! V! |8 ` H8 f4 H. P7 Z
end t& H. B- `/ @* D+ k+ z7 A8 q& E8 O
. O8 s; `4 t' @2 p# r3 }
to update-local-reputation
' i2 x/ ]3 C3 |+ z/ V$ Fset [trade-record-one-len] of myself length [trade-record-one] of myself
" i) {& ^+ N3 J5 e0 ~: d o8 K# ~- [4 i- t7 y) L( Z
5 G, w; v N3 z+ I9 [9 U
;;if [trade-record-one-len] of myself > 3
0 U$ t8 C) {; wupdate-neighbor-total
3 }) ^4 A X, t% K5 b; j. I! i;;更新邻居节点的数目,在此进行7 l3 V. ?: {4 q. S
let i 3
' Q4 T6 j5 u. i" T& j4 `" ^. a" Blet sum-time 06 k# Z$ `1 g3 Z# C* I
while[i < [trade-record-one-len] of myself]
0 C6 J! X$ a6 k' h[" w ]! V6 U- `. {! H6 P
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' [- k4 {+ P; E. Mset i! ~. O6 @; p6 h' [
( i + 1)
% p# T# d5 t' ]+ r0 ^7 c]$ [5 D3 X& G! ^
let j 37 k; l! n4 |* `* |6 X8 [" j
let sum-money 0
1 j5 U$ X. V4 _) z/ Lwhile[j < [trade-record-one-len] of myself]* {5 q. ~: R: F8 s
[
w6 w* }% z& M. s+ Cset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
/ |, c: w' {) c7 Y- Fset j
* [2 V7 w9 i! } U2 w( j + 1)8 t3 K* [: P: q Z+ E, \, J
]4 R. z, ~5 n0 k
let k 37 A$ ~2 \% G0 @7 u5 J
let power 0; R# l l2 H( x
let local 0 s, R9 D6 z: y
while [k <[trade-record-one-len] of myself]/ {7 s s% [4 U$ ~. e
[
. ~- T1 `! O8 D ~$ ~7 C( kset 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)
1 |3 L5 [3 ]2 Z8 {9 S3 pset k (k + 1)
, W; F# d6 x& c]
- E! B7 `* {$ O) Kset [local-reputation] of myself (local)5 r6 a% E. t- I4 S: e
end
* k! U3 E" m% i7 I
' ]" W8 X y) N( }" O$ V3 lto update-neighbor-total
# n+ W0 j' G) {: E W& Z9 a) @6 r; m r" y) G$ n8 h' p
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
m, t: `' z* F5 Q9 T. g8 y7 ?6 Y/ c/ y" q# C1 p
3 a; R6 E) k' m5 ~) Z
end3 { b5 c2 _! f# Q
/ \+ {7 ]: W3 k& e
to update-credibility-ijl
/ [1 F1 Q% S, H7 w
5 ?! R* a* W* d7 [0 {' @ @$ P;;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。7 f/ D' |+ T' A% Q* i
let l 07 C; p" F9 p( V: H
while[ l < people ]! n; |. h$ H \6 W; p# A
;;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) k9 ?/ `5 A. R& N# d9 I
[
6 X8 _3 V* u& ?4 Xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 D1 j- _, j4 H, t$ S4 q
if (trade-record-one-j-l-len > 3)2 ?% _# _5 \$ k9 u$ Q
[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
5 ^5 i/ Y0 g; F7 W# jlet i 38 J: ]' C( b. A+ D: n9 t( n
let sum-time 07 X* @) j! \0 I/ z" ` o$ l
while[i < trade-record-one-len]; m5 a' z+ w3 b$ O2 E
[
0 Y8 [8 J" b `5 x0 l" Mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ Z: M: R& K0 H3 B! b6 O4 l3 mset i" T& C; d" L0 b4 I
( i + 1)# ~6 x0 {+ ]; Q
]4 ]) o/ m. {% ]
let credibility-i-j-l 0
9 ?/ r* w# L9 Y;;i评价(j对jl的评价): [. q9 e1 G* ?, M# r
let j 3
6 [; h) e, u8 O3 q; [! z' Blet k 46 p$ n3 K v, S* D- \0 ?) a
while[j < trade-record-one-len]6 e; p& Q6 `; w% X- @
[) ^# v: k: Z. s
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' x! c0 x+ z" S8 Q) @1 a5 e
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)
+ g: i: ] t* `set j
% s! Z/ p' P8 O$ q' g1 C$ L; T( j + 1), ~( C3 G( J$ q4 @* ~
]% v8 V8 Z2 h+ W
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 ))
, ]# [3 V0 B4 t* P* G" D7 J0 `" b4 m
2 b) n3 J* U3 ^8 {' c) i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* j' {# I9 k, u9 U) c8 ?6 a7 b
;;及时更新i对l的评价质量的评价9 w; s5 A3 m3 W+ C/ I
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 j( T6 ~% ~9 A3 \5 F0 ?, v, M
set l (l + 1)" f1 _+ |, L1 q2 U5 `8 ~; u6 w- H
]2 \ |- H) H# i5 r" h0 t. f
end1 G% Z. f9 P! P* _ B
. [( M& V. x/ k9 h6 N2 Yto update-credibility-list
, a0 V4 {3 s& flet i 0$ y) |6 o- J. ?! z. D" m
while[i < people]
3 Z$ h" S$ f" S( b* x0 _9 \' i[: K' s) _) P* u1 w2 Y0 }3 i
let j 0
- r8 `& A2 l+ q6 g$ Plet note 0
& p4 E5 J0 ^) J" o! p& Nlet k 0
3 h' \8 W3 t: C9 z) L$ t;;计作出过评价的邻居节点的数目
$ R6 E. m( L* I6 C) d3 gwhile[j < people]
. n* |1 H2 S; |[
: b3 G" c) R( _if (item j( [credibility] of turtle (i + 1)) != -1)
% Z0 v: n% x j4 H$ E0 N i' [6 j;;判断是否给本turtle的评价质量做出过评价的节点5 S6 D; y$ T) C: `( O& q( A
[set note (note + item j ([credibility]of turtle (i + 1)))
$ a! o1 @3 s( b$ Q;;*(exp (-(people - 2)))/(people - 2))]
; O) l! d3 [ q4 h. B eset k (k + 1): c7 V! x& o& z
]: I4 N0 }4 z) m& q/ u3 w0 T' _
set j (j + 1) {7 g$ Y+ J. L+ @
]
3 u0 j/ y; `/ Z7 V& a8 @# }set note (note *(exp (- (1 / k)))/ k)
6 g; `- E7 d0 Eset credibility-list (replace-item i credibility-list note)1 _& k9 ~" U4 D
set i (i + 1)8 p; L/ S+ R1 L, U9 ]
]4 E- N; n, v- I9 i9 B- m8 ?, B" P
end
+ k. T4 F+ X+ O3 P T
% F0 b$ Z: @: S# |to update-global-reputation-list
7 [! x) \2 f2 {; t. Xlet j 09 G5 a T) x0 b' z1 Y
while[j < people]
) M$ D* o! r3 h. {% s3 X# x[/ r$ a! {8 m! B1 v1 f5 c" x( m
let new 0
" x% K0 y/ t3 |5 F1 S+ J* I;;暂存新的一个全局声誉
$ O8 V2 D5 c* B7 D: E- _" {let i 00 c0 d/ ]" [# e9 |: E6 j" k
let sum-money 0
9 h7 [5 [& d& C3 M% Glet credibility-money 0
( E5 q" r; P5 m; {) mwhile [i < people]
# j, o) K0 f; `: D' ? N, i[
' X) d2 S0 M& r4 m9 Mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 A6 W! [4 }9 T: i: G. B8 m8 ]# @1 L, yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ c8 a) [( t. K( ]6 ]
set i (i + 1)
4 c0 j5 R, X, E4 o. i/ d]
( Y3 F; A4 ?( [, n) h8 Zlet k 06 f% q$ ~+ ?4 i1 y8 j7 G
let new1 0
7 x9 o y$ |, h' M4 {: Q x: K# @7 mwhile [k < people]
; Q6 I* Z0 S4 K' W# G[. w% W* q+ v8 ^ K. o
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)
. [. U; F5 s2 xset k (k + 1)1 x/ B8 D K/ `2 Z
]/ G F8 {& m2 D4 a
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + j/ u- I L! e+ f( {' l; s
set global-reputation-list (replace-item j global-reputation-list new)
; u e$ x z. M8 Z) q* r/ K2 C( zset j (j + 1)% K. M- _- w- o. `/ a3 L
]
" b. }9 D; _/ l4 z( dend
# o) n8 q6 k/ I, v
$ I1 i- Q( {( i2 ]' k9 O8 E* l0 O# G2 \( C o* q
5 Z$ [; J; S6 i! v0 q7 j: t4 Vto get-color0 A: J% f! N9 m5 ]5 n
6 Q; \/ N5 y$ S5 [
set color blue
$ j: z8 ~; ]3 G' e+ P# w, Oend2 X5 G) o+ U j2 ?5 D' ?3 G& ^, `3 ?
& h: y0 n9 Q4 L1 `- S- ]- t8 |4 Qto poll-class4 ~) }2 q% C5 J* z$ x
end
9 G/ M8 T# _( \' I* Y7 x! [9 p
9 a- e: d/ A3 S$ g1 Sto setup-plot1
4 D1 ~ F1 h8 V$ H, N0 i7 [' B+ r. ^
3 l+ \ H6 d% J4 |: K* o2 jset-current-plot "Trends-of-Local-reputation"
3 k; f9 v3 x# L9 `1 Y3 K5 ^/ [6 E8 T3 d- |' u
set-plot-x-range 0 xmax
' p" _/ {' w1 E; M( ]( k: H! n T- C2 ^' G1 ^$ B+ E+ e+ f
set-plot-y-range 0.0 ymax
1 Z8 Y0 {; X7 o3 e* cend7 e* l1 z6 E. u8 P# E& u# n I- H
* m) i4 G; i- { s3 U
to setup-plot2
( h y0 J5 F) i
+ ^; B) }: G+ N4 m( f1 }set-current-plot "Trends-of-global-reputation"/ D+ |+ z w* M- ^& U
2 G7 V3 z! v. F8 }" m i4 Wset-plot-x-range 0 xmax# B$ T1 r/ N9 o2 H' E8 u: \
8 v1 M+ q9 M B& n! Q. u; kset-plot-y-range 0.0 ymax
0 Y. b& ]% n; { e3 V6 o( x0 lend+ ^* _ \; @ R
' d9 L6 m7 @: ~8 W# q+ _- M9 e
to setup-plot3
5 |: K8 P% \! S
6 w- D, F0 b+ `/ V7 K( Dset-current-plot "Trends-of-credibility"
+ w# l$ P, w/ x9 t2 j% m1 d# f9 [* y2 D
set-plot-x-range 0 xmax
) L: q" w2 D: Y& [2 k9 H y* U
5 c$ b' E( j z' k& ~set-plot-y-range 0.0 ymax0 Y( q) l% X6 }, f/ Y0 M6 F# r
end
% |% U7 X+ K: A& Y' K! f% {% m
+ e8 H; M$ M7 m' g" U7 C6 t u. gto do-plots
% r; p1 x( [ n, n. v4 E. Q0 Vset-current-plot "Trends-of-Local-reputation"
. d5 o+ Y' I; h: I' S* fset-current-plot-pen "Honest service"
6 q3 O3 r5 h0 {; @' M: t3 Eend
+ ~, |( ~1 G% h2 \1 X' D$ w9 T$ O( o- o9 y1 d5 ` D# T
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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