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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) R5 q, j4 ?% t; k
globals[
9 c7 J+ I B+ h. Q( q6 rxmax
) C' h: r {/ n; B2 Pymax
9 K+ R, v6 Y' H! Yglobal-reputation-list
+ [1 S) Q# J4 K9 ~% E' c4 k" o- h: W% z
;;每一个turtle的全局声誉都存在此LIST中
/ E* M; y- q" {; F! Qcredibility-list
2 W, A- @5 Y+ [4 ^3 s: g9 i;;每一个turtle的评价可信度
: q( \4 z# a& v5 _% @honest-service
; }. V I; _ p, o% J3 ]! V/ C9 m8 Tunhonest-service
, A. k; S1 ~# {oscillation- X8 e+ P0 e5 t" M
rand-dynamic
: E, b* V6 |8 j$ Q4 W& u, g1 y]
) f6 z4 }* @- m# H1 X
! b# a% F5 [+ R) U# } R+ Yturtles-own[! P2 D4 ^6 h' M F+ ]0 j$ C
trade-record-all1 I" |2 [' r1 b& O9 T
;;a list of lists,由trade-record-one组成
0 W/ g: v' F: H$ E! Z: B; Etrade-record-one
' n0 @' a T5 Y9 S- ]. i;;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 _4 x4 C$ a7 `$ [& Z
1 f- b- x& E A$ w' i;;[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 I3 u* R: q m8 E( R
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]+ P/ Q+ ]5 h/ o9 p( m2 c$ 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list" j! M7 ]& i: E' ~' M6 c) L
neighbor-total2 K- g4 P- I ^7 [. P& M8 J
;;记录该turtle的邻居节点的数目6 {' @0 E# A: S" Z. ?# A" q
trade-time
7 U- @4 _ M j/ E" L; A& w% L;;当前发生交易的turtle的交易时间
/ Y/ v- A! j8 q% o( C0 Aappraise-give* q5 X" y. I/ B- k. F
;;当前发生交易时给出的评价
; M9 C& W( X8 E0 Aappraise-receive# B0 R9 M) Q. B0 m
;;当前发生交易时收到的评价
! |9 l# w" v# m& B6 G: bappraise-time
4 S6 H' j8 h( V;;当前发生交易时的评价时间+ g4 B1 ^/ B A, O' m. Z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! V3 b, [: P9 a9 ^. o
trade-times-total$ |4 [& Y1 n. I2 H0 W% I
;;与当前turtle的交易总次数6 K) n* x, s- t4 @8 k5 p
trade-money-total
8 v" w- A' {. C8 [;;与当前turtle的交易总金额
( I p* ~7 @: s! s" a# }+ I2 xlocal-reputation+ h* T" I0 j0 U) t1 l2 S4 j$ S' e
global-reputation8 F: Z. v2 c! J. _. u
credibility
5 S3 i, Y1 P+ v& O1 V9 C7 g* I* c# s;;评价可信度,每次交易后都需要更新; e$ M, i. M/ S5 `+ x* f
credibility-all
! A* ?. X: J. ~$ u( {7 a% K8 {) 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9 o5 ^3 d: A, y; T) g+ `2 J) }
w, z. R3 z* X |8 i; F: @;;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
0 E! M3 _4 H5 Mcredibility-one
1 b/ X! i3 v: S' N u;;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
% g9 S9 |/ l0 D3 B+ bglobal-proportion
( o) Q1 k1 E8 _8 v$ Y5 r2 Jcustomer
3 T7 \" V( @$ L- m, Xcustomer-no, P7 t" \) x% a3 p
trust-ok
6 [6 E6 U# E, ktrade-record-one-len;;trade-record-one的长度
w R4 E; N, w; P' I+ ?]
* t) s' `4 D" f! K; x# A
m3 x: J& W+ E7 t3 A;;setup procedure
( H, A+ n% w3 X5 R( ^0 A
b6 q! R( H4 ?* A% d/ h$ Dto setup" Z+ c; g1 m8 x4 \* h( ^2 I
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ca: z% R' z' ?) f7 M" N
( Z( N! l3 \3 ?5 ]5 P H6 _initialize-settings4 Z" p+ B: Y, Z" F1 v2 I% b8 Q( v
* X; U3 M7 E, N0 ~
crt people [setup-turtles]
& r( r& R l/ y6 Z( z2 }) {+ q! W6 n0 W' P4 `$ [
reset-timer6 a5 O W7 x1 v$ i4 R
. F8 ]3 `6 A! Q% Spoll-class* X# u) I- ^* E0 ?
% s$ v( |2 g" ~: ]* K! Gsetup-plots4 \, Z8 {# g. ^; V7 u5 W5 T* ^
, n3 |; i, A0 c
do-plots
# U" W3 _+ Q! j& e! Yend
! r8 P! K. p( p, L6 _$ {
5 u- |" [( n: C7 H( K# I" B( \to initialize-settings9 q. l+ e4 G" v
* a* B# d6 n( ^1 v Bset global-reputation-list []
9 ]! U! z, l9 q, A' B6 N7 v) @' L1 ]% p+ S
set credibility-list n-values people [0.5]
: x a& t7 Z9 C. }6 n$ L
, g( w/ i4 R% xset honest-service 0* e7 \/ T* d+ ~9 T# b6 T# _0 B
4 f* x6 A9 c& J
set unhonest-service 0
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set oscillation 02 C- g5 e* Y8 n8 w3 k1 C
- f, I0 A! y; m- N4 Q
set rand-dynamic 0
5 y. f1 \9 s O2 u5 {end& N0 E+ r( l9 y
# n1 i0 P0 n0 ]. y9 }) L5 Fto setup-turtles
* N5 a2 [. @* p l4 gset shape "person"
8 {' l8 Y3 Z' D' Z. |! }- Lsetxy random-xcor random-ycor
/ S' c( l1 Z% F7 w4 W( tset trade-record-one []. x( V/ ]& D/ v7 [. `
+ e% M( v' M: l
set trade-record-all n-values people [(list (? + 1) 0 0)] / @ q! ~% u+ y2 D9 _$ j6 ], X
( E8 z8 {8 s( q7 O4 ?+ w8 U& Z
set trade-record-current []
U8 d4 A- M+ h, U* V+ \set credibility-receive []
K$ S, h& O. \$ S$ k; Gset local-reputation 0.5
2 D) E# @8 W1 nset neighbor-total 0# p: U4 F4 ^( ]# `. U
set trade-times-total 0- ~0 ?8 W. U1 [; V- D. o5 w
set trade-money-total 0. s6 |) U/ B' G9 J- b- B
set customer nobody
% @9 n7 h- \- S i& E/ Yset credibility-all n-values people [creat-credibility], D: b, t: S9 w. i# n$ T
set credibility n-values people [-1]2 r9 V2 l% w" J. B1 h
get-color1 |" r2 [; d) U. p5 W0 O! J
' @8 C1 _: c0 G' Q0 A" z( iend
# G% O5 W* q* E. A& ^4 l9 j$ j: f1 }! E- C2 h
to-report creat-credibility
( w4 N* Y- j" [1 u1 X/ J# nreport n-values people [0.5]
. |; F4 Q* r+ Nend1 {5 u1 T. }8 u* _+ C% y- k
* }5 q5 J* \% J/ Nto setup-plots
}. v3 O$ ]- s0 y. h- y; K& q
. @! \# J+ H. Qset xmax 30
# f9 C! h* ]; u) r6 k I5 k& S8 N% {2 `4 C d
set ymax 1.0
/ a3 n7 G1 F9 q% ?( ?5 H0 Q& g6 C& q+ T4 ?5 F
clear-all-plots
. o E% x: b8 Q
8 _! @7 Y' I3 A1 Rsetup-plot1/ y- R( x& t9 s% s
& D6 L4 L% ~" l& b9 Z3 H
setup-plot2
/ A9 M# O9 u/ C$ S# [+ x
! i7 ^4 }4 l/ e# e8 }2 ~$ k" N# Dsetup-plot3
: @9 W9 p! P' L- mend$ k5 T( P, o' Q$ c2 V, A
3 K# q9 W9 X, ~! c) Q7 H5 l0 o;;run time procedures. w* d& h0 b( X: U2 ^
6 C: @3 E% x& m) o$ qto go
+ @6 g5 G7 P' N, W b# e( m/ m7 `$ x, C
ask turtles [do-business] x* Y1 \3 N# E
end
+ g9 a) ?& T, h1 t6 M7 Q" V
1 Y: H; _: O* S4 \$ s; ito do-business
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( L9 Y& Y9 S- l2 k8 Jrt random 360: z/ {5 K* m8 ]6 ~
! ?/ U) |7 @$ |) S2 y% L# C5 @( dfd 10 [2 g# T( Z( ~# W4 J; u, W' t
& @% U3 @1 R& x. G9 D o
ifelse(other turtles-here != nobody)[+ {% {9 v& `1 f, [& f% d1 G1 |
7 B2 v: e r# S0 y; c$ w$ Y& j" ^set customer one-of other turtles-here1 J5 J- x0 s6 T5 E" S M
% p- A( d9 T3 b3 `5 v
;; set [customer] of customer myself& `$ y/ P! G3 Y
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set [trade-record-one] of self item (([who] of customer) - 1)1 W" T9 D' E+ O: s. v4 o5 _ @* N
[trade-record-all]of self/ v/ K: l) q2 h" j/ r2 }
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 J& V; K! N! n9 D1 m0 U! ^ N
/ b% D* J0 C( e9 t/ g2 fset [trade-record-one] of customer item (([who] of self) - 1)
9 O: @; u5 u; W* U3 }. O) a* A$ u$ T[trade-record-all]of customer7 o2 T& ?6 P% \/ @$ e
; G1 ^4 P6 C2 C
set [trade-record-one-len] of self length [trade-record-one] of self8 L8 F! j$ A* U* W! P5 Y
: t/ j+ m5 F |* A( r$ _; d# Y6 [. Qset trade-record-current( list (timer) (random money-upper-limit)), d& b* S) N: f( D& F$ d/ q
2 J. y1 ~6 `) j3 x* nask self [do-trust]( t+ i$ c- Q7 R* r
;;先求i对j的信任度9 x8 K+ p- F( z
/ U" ~7 W% y, O; t( ^" Y+ [/ `! Tif ([trust-ok] of self)
+ y d2 y. V* L. x- f;;根据i对j的信任度来决定是否与j进行交易[
8 W2 A" m3 S) `, r' W9 mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% A# C. a3 o9 u
3 {3 m( o% O2 \
[
: G8 {5 m) u9 B, w0 m/ J5 ?# ~# T3 w" D- I4 f' c
do-trade
0 x1 O" k% W' x! o, E; {$ i( v4 y* n% a! L y! {1 W- \
update-credibility-ijl
# E3 F$ Q' ]. a/ u
6 Z1 E7 ?) F/ X6 y' v. N/ [# U7 Rupdate-credibility-list
0 E# r# m# o- \, U$ y Q* F* ~1 {$ x/ |
! Z7 K3 t) s* M! d0 `( i
update-global-reputation-list9 c6 t* k( V: J& _+ L% m/ T6 b% e
+ d3 F) f- d1 L! g" H. }1 mpoll-class
; h& U9 N" o0 p/ O" K: \& k
* D% p9 U, u$ bget-color, ?3 ^+ Z0 [. |, B
4 \; @2 c5 t9 H0 u6 D! y8 o5 T; m% L6 g8 U
]] b4 L8 C$ N4 F4 G+ T' B: @1 y/ g
: D( @3 O/ a+ [4 S1 K" R
;;如果所得的信任度满足条件,则进行交易- Y: C0 n% S+ W, ?
5 m- f% c5 x. W[9 ^! {9 C! F- q
/ H. Y( l" N; F+ vrt random 360; o' {' w3 C& `$ U O# \& e
9 b7 s% }+ j2 Y3 t
fd 1
1 S* U( m+ `# l, E7 a2 C W# g: r+ }( J6 U X# l
]. a5 @% x% z5 @+ B% R; n' x! i
9 I8 _3 y" A0 Wend( g' m5 n: E- m( [/ P2 l( w
2 ?0 N& w. }, E F2 U, g
to do-trust
2 v+ \- j2 R/ G( x- l* Bset trust-ok False- c) N+ m: G4 |
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5 t j; D5 }. b7 u- f* P8 @let max-trade-times 05 n* Z( X$ B7 f1 l) e4 r- I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: Y4 D3 v6 U8 } n% V! v0 N' l! O
let max-trade-money 0
, B) s. X' l! x0 Y ^. S" }foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 Y X1 ^% u- n1 k! f& O0 m: T
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), Z- C$ l' N/ `
2 {! ]0 d6 e( D! B
2 F2 \. s5 L( q% O8 b) bget-global-proportion
( u! d# E7 t7 y" e( n7 }let trust-value) l! D2 g: g3 P" G y
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)
0 I q, t6 {. G3 Wif(trust-value > trade-trust-value)5 g/ z; {1 B; e, ^* }
[set trust-ok true]
2 L. n( K+ s# T( Q' x) c% D9 X: Tend3 l) _) n6 t9 ?2 o+ D
! a: d' B6 \/ X' L4 Z: fto get-global-proportion
/ F$ Z2 @* i, h8 {) Xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 c5 b. V& F' _$ p1 h1 h/ r" M9 A[set global-proportion 0]5 e4 k1 r# U" n+ L
[let i 0
& e: o$ b2 a" F9 F' Q# f, }7 ]2 ~let sum-money 0
- v3 v) U# r) K5 zwhile[ i < people]
9 V8 R$ \7 Y# o[
2 W+ F# s6 \& _; lif( length (item i n% l' t( E7 Q" }, g8 h4 j
[trade-record-all] of customer) > 3 ). g2 D) G4 E7 Z3 \( n% `/ ~( D
[; E6 U: g$ E6 e6 o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ m8 e- [6 k4 n' H }0 y]
1 O8 ~& g d* F8 g2 W9 \1 l]
' i" f( [! p/ p7 k! y9 xlet j 0
- K, _( Y' Z. r, v" |& slet note 0* k. R2 e* w9 w: d
while[ j < people]% L! r" W! y! E
[
1 a+ _, {+ F- T, ]if( length (item i
4 J) q1 r+ w/ Z7 O[trade-record-all] of customer) > 3 )
6 j! V) ]# x) k/ {' H[' V% P, P# x7 N# O' R% U
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, L. x* g: T3 r[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* ~: i% }, O4 Z% T
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) U. ?. o+ h E
]
7 _' O$ m3 {( P' E; Z: h. D]
7 p" o/ Y" A8 d Fset global-proportion note
* ~. A( l' E" f# Z& P' y]
. ^: `9 K4 R( Kend7 k6 i* j" Y% I
0 B2 e/ e1 m [0 v1 D: W2 ]
to do-trade
& ?. B' y! Q( K, C9 r;;这个过程实际上是给双方作出评价的过程
3 x1 }& F5 v# b8 q0 @- K1 R6 sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. s) ~# H+ }0 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价- T3 t" I9 r: _" T+ `7 q9 q
set trade-record-current lput(timer) trade-record-current5 G5 z0 G1 d/ b' w0 w
;;评价时间/ O7 c+ f; _, s+ q; T# g4 Z) o$ ~
ask myself [2 j$ p! _/ b' w& S! ~6 i5 {
update-local-reputation N8 e+ `3 E' [" p6 F3 V+ M
set trade-record-current lput([local-reputation] of myself) trade-record-current7 @/ o$ e, g: G& l% v+ l
]
, ]# O1 _ l/ F: ^+ T2 X! Vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ U! j$ A+ B9 _: l8 N, P4 Q4 ~;;将此次交易的记录加入到trade-record-one中7 H# u1 @0 L% H
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 Y, H5 i5 K: d* `, r+ T, zlet note (item 2 trade-record-current )
$ F, p( l: F f! }3 ~set trade-record-current
4 N5 @# F. `* B$ R(replace-item 2 trade-record-current (item 3 trade-record-current))* B" S1 N/ t+ F3 F
set trade-record-current! p, G4 y7 q5 x
(replace-item 3 trade-record-current note)5 m0 ]" R3 w/ o; f! p7 N
( q- Z; C, a0 Q8 |2 U& O
1 X# F# ]1 A- } N8 U0 g
ask customer [
" @. A! R( B- _update-local-reputation) b1 M- x1 q/ h
set trade-record-current
6 T/ B. }/ Z" ?- U6 _4 r! _(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) q# k3 m" E7 ]. q- }: b
]
- h. L, n4 \5 ~/ y# f
0 b3 g% ~, @% e; P4 r- S$ {5 H+ I$ D' W# |+ ?; K$ z9 A( x
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& U' s' h( n. p/ t3 L! ?1 }8 c7 T& w1 d% ]! e. {- J
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 V+ K+ h+ c5 F' V9 h8 f+ l/ f;;将此次交易的记录加入到customer的trade-record-all中
/ y W9 Z8 f; L+ m7 u( Send
2 H# l2 V9 k0 g9 j: J0 J" ~! P- g7 _% I( u% g! T
to update-local-reputation
0 q/ U+ |) ^1 R! G3 Qset [trade-record-one-len] of myself length [trade-record-one] of myself
" s. q8 k3 w6 L. F* d) r+ w, j, \" U+ _& l. l3 B, `
; a6 z# U5 L; }. d; z
;;if [trade-record-one-len] of myself > 3
- o% T$ X. a4 n/ r- v8 e" c uupdate-neighbor-total
, n: c! q1 K& J/ O& W) C% |) X;;更新邻居节点的数目,在此进行
( F( _2 S E. B. Hlet i 3
) Y" @0 ]. ^/ b" R, Qlet sum-time 0: M$ Y7 g; m2 P+ E1 P3 ~
while[i < [trade-record-one-len] of myself]
1 V# ~7 u7 h2 b c: T( m) k! N[$ p9 ]1 X+ I: U3 Z. J+ V" I
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): N! Z) T5 A* P; X
set i
o" q1 W# x, u3 v( i + 1); n8 ?! S Z4 _
]# G; F& r1 ~# g. t+ a6 ^
let j 38 x8 r0 i. g& a9 d
let sum-money 01 R/ z$ U4 x% V
while[j < [trade-record-one-len] of myself]
2 f$ h+ b t) Y. |: m[1 c" P( }) l; t6 l
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)+ `( A6 B1 V$ x# e! S$ [
set j
* o7 Z/ [$ b2 i7 T( j + 1)) S& a) L0 X x/ e; R& s4 d: Q- J
]8 P, w$ S7 S% a. d
let k 3
5 Q' [; y3 d, Q# }let power 00 ?2 Y6 D2 k+ y6 {5 k
let local 0& }6 y8 c C# s l* Q9 C
while [k <[trade-record-one-len] of myself]
5 [4 j I! [5 g4 K9 V3 W[
6 o: L1 [, U6 ?# q3 @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) 6 r3 B( y2 k8 Y: x
set k (k + 1)
2 W. |8 r. o0 R& s/ z]
% c: w2 o3 E4 y1 Q' eset [local-reputation] of myself (local)
6 f9 A+ y$ g ?! Dend, U. g7 c- n$ W
7 T$ T# w9 G A9 w7 R! `! H9 B/ Rto update-neighbor-total; b4 B+ D7 p: b
. v) }! m& ^0 e( I) S8 K/ j$ mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ V2 w6 c7 ^( b, g) f( W3 \0 Z% T5 L9 w6 Y: s3 v0 B* }
( ?! w" B- Z! ?, ]8 j- @3 o
end
1 r0 A: J, X8 Q7 z
G( i: ~( @4 }8 Y% lto update-credibility-ijl
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q# H4 t1 W& k% U: ?; u;;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 d1 n+ y3 V' N4 s/ S1 b5 Flet l 0
! g" \% w5 r; u4 a/ [while[ l < people ]
% f) ?; ?6 J8 k! b/ a2 S4 p) S;;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
5 j" O. o, |* F |: S[
@3 Z- q6 \: h# Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 T, n5 u. b& @9 [
if (trade-record-one-j-l-len > 3)& E, ?0 Y" [/ f7 m7 U
[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
, u2 @3 V' i, T0 l( F9 F5 j# blet i 3
% B7 @2 m1 v# r ?' Vlet sum-time 0" l. H# P- `2 p
while[i < trade-record-one-len]" V' V; E S0 Y/ |& i% ~0 _
[
4 I1 _: V, B9 m2 G }. F/ H3 _ Qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' R! i- {+ f9 T& K3 R; {
set i7 P, Q5 Y6 k; n& T
( i + 1)
* `6 L$ o3 a# J; S3 J6 c]
1 b0 r1 V& v6 X4 Alet credibility-i-j-l 08 n2 M: |" z- |
;;i评价(j对jl的评价)
. v6 b% L$ w, k" K. F4 ^! Zlet j 3; C2 {( w- s' T' b. @
let k 4 \% ~. Q' t) J: v: L# M4 M: I
while[j < trade-record-one-len]
5 W" u2 Y, O& Z2 v4 P/ f[
8 v( [- Y% s* p% J, }* bwhile [((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 V6 ~0 |# m2 v% zset 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). J1 Y& M" ~/ P2 J. z; L8 m l+ E. Y
set j, a8 h9 ?8 c6 O% j0 |3 a1 k7 u. \* p
( j + 1)
4 x- L6 E: H2 f8 }' q+ a' Q( m% f' A]& W6 n! H1 g5 E+ P) O* T; 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 ))
Q. F' _! } M& ]) k4 m% [( g% T' D0 O( z+ B+ J: X: @
: z# R) {0 h, }# H* R
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. {2 Q* ], M6 ^;;及时更新i对l的评价质量的评价
! j3 D9 f5 E) e, ]0 {6 W8 Xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 y t6 H+ _; z7 ?! s" Y! I
set l (l + 1)
! w# Y. k. g8 P]) [3 x, S4 {; O( e; W4 D5 U% @/ e
end
' x) A& D" t- m
1 w( _) J" O' Y0 S& T1 }1 k( mto update-credibility-list0 n3 ^9 b6 q+ t/ }) r
let i 0- z3 r+ ~, `3 i6 o( d
while[i < people]" W- g$ L( @2 c' u! |
[/ h& Y* N4 R1 J$ X- z
let j 0
; g# e" B5 K% p9 B$ {; Wlet note 0. @3 x; \6 I% ?, e [9 ?" \
let k 0
# l$ Y/ c% u2 B# j! L;;计作出过评价的邻居节点的数目
5 m% R1 f$ h6 ]2 N0 z: {9 Lwhile[j < people]# x U, |7 V" S! v; _" ~7 i9 j" y
[; v! Q8 \) A" c( x6 O- O' p. V
if (item j( [credibility] of turtle (i + 1)) != -1)
" w9 s9 m: o6 R6 l d;;判断是否给本turtle的评价质量做出过评价的节点( w$ K' _5 m3 r+ X
[set note (note + item j ([credibility]of turtle (i + 1)))
" o# K/ t& z( Z* Q" q;;*(exp (-(people - 2)))/(people - 2))]0 d, I' h6 ?3 J8 N! j# x4 R
set k (k + 1)
9 [9 s/ n, ^4 W6 p! s0 L% r]
5 H: W9 @- v [9 `set j (j + 1): h& [) K0 N8 N/ d! h" f( c& r! D" r4 x
]
# O8 d5 R( T1 p9 Zset note (note *(exp (- (1 / k)))/ k)
3 z$ R; X3 H4 i3 d9 H, bset credibility-list (replace-item i credibility-list note)( q$ K9 ~, N7 }- p# p
set i (i + 1)
9 g7 S# f$ E' d4 i]" U+ ~4 f" T) ^- t
end
6 a: C! e- m5 e ?4 F6 N* N5 h7 @$ o
to update-global-reputation-list5 R6 m+ K: F& O, r; ~& n
let j 0' D0 g2 H" K, [' }
while[j < people] v% N( k! h/ ]5 h0 T; d
[
* B0 M/ F& U- U! q: Wlet new 08 s# x. m2 ~2 S- L6 Y1 A6 ^) X
;;暂存新的一个全局声誉
0 o" v- `3 @9 \let i 0/ A e; b# V: t, e
let sum-money 0! E/ }* H: ~/ V% s& @
let credibility-money 0
( E% H$ ]2 j s' Gwhile [i < people]. K! X" ~6 F6 O x
[, g5 u/ @! F3 t- i
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( m( r( t2 V% k" x
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), x2 w6 I q6 ] j4 v
set i (i + 1)) ?* R4 i# W, d( g1 S* h7 h5 G6 X' `5 w
]
( d7 q7 w4 K+ x( {3 l3 }; rlet k 0 ^- u& z' K% f( s, g0 n0 p% F, C
let new1 0* r3 Z4 Q/ I, [2 j$ q D
while [k < people]
" R- ?. W, k$ d. m* ?5 R, |8 @/ b[
, t5 ~1 o! B& A, x8 k$ Mset 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): X8 i7 Z) i4 b3 i
set k (k + 1)$ U6 W7 S* C. ^
]
0 U" k6 C& A( d0 tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , k: Z" a2 }% p8 p8 D& a8 w0 ^" t
set global-reputation-list (replace-item j global-reputation-list new)
4 ^3 \8 W$ \7 u- W {9 U7 Xset j (j + 1)
5 r4 Q" K8 |9 ^3 O9 c]
& _* C% {% M9 }/ e# Yend
# r* g9 E* k3 ]7 m' K
! o8 V0 {& m) E+ q: A9 f; ~. p& e* C4 W* T) r. B
. f% [: a3 H9 d: y1 J5 dto get-color1 b7 V; n+ |6 I1 @ J" x3 ^
. D# z) Y, u+ I# e7 h6 ^( S: vset color blue
9 s9 i7 Y& O, h8 \4 f iend( l I0 @5 [# F5 V
0 F) m7 Q* v. ~1 { H3 L
to poll-class1 f/ k' P7 g0 P+ C7 b
end
3 v3 N3 |. v" p. l4 T- v3 C( F5 L; F1 I( w+ B/ _6 }
to setup-plot1
. N0 G8 l/ E% O A5 J7 k( ^
, F& Z6 G$ n+ y# s; U1 {! A. tset-current-plot "Trends-of-Local-reputation"- a, V: ]. o6 L, ?2 e; Y
* H% D6 \0 i- x" W, P5 T7 S: Gset-plot-x-range 0 xmax+ `4 n4 Q% U- @, Y. G" `
: n: a. H, a& R% J; a9 h9 _9 p% g% D
set-plot-y-range 0.0 ymax
+ J6 B$ f8 t1 K: Cend2 T* Z; @5 M/ ^, j2 ^
6 j, [5 N1 e' P. g8 \6 v- `to setup-plot2 q, s; ~" x$ R9 Q) L1 r- T
% t: X) G8 J( f/ Q9 x$ N& w4 [9 _
set-current-plot "Trends-of-global-reputation"+ J! P9 V4 x* m+ P- e: J, R
+ ]+ s( ~7 d1 }% V
set-plot-x-range 0 xmax' g% _/ Y8 m" l$ V8 a3 ?
! z+ Y# ^& m7 B1 w. g' S
set-plot-y-range 0.0 ymax
$ Q' s% W _: d; {; y1 D2 Mend5 T: l- C! r- R7 v3 s; ?! m/ g
# I$ d0 \9 |- i( F' Dto setup-plot3# s3 T$ Q/ [0 B5 J; w
% W0 D- R3 I; bset-current-plot "Trends-of-credibility"
9 C5 o% W! f5 b+ k+ s
& f" d0 q$ x# F( p O& y# gset-plot-x-range 0 xmax3 q6 b1 h8 n0 `- Z' J% v
5 q- X+ m! c2 w: p. ]' g5 C
set-plot-y-range 0.0 ymax
/ i) O3 Q! Q- n# m4 iend
Z4 t; j# E1 x6 r9 X) L. b2 \4 V1 B$ p" Z8 A' ]/ T! k$ u |
to do-plots
2 j; b; b1 l, }7 t' w7 Uset-current-plot "Trends-of-Local-reputation"9 E2 D' Z+ `3 ~* e: B
set-current-plot-pen "Honest service"# i$ A: r* n3 a* v- z3 d) x% E) q0 A
end
9 m& M1 T' ] u2 [2 V
! _0 A1 _$ ?6 S; t l[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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