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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8 o+ z* X5 W8 Z* M- N% F d: E
globals[* H" Z6 T. v& |
xmax
4 }! C F: d Z8 o4 J- P9 F; Rymax# T2 R$ {* j3 h5 O, A
global-reputation-list; A1 b! @$ j8 l5 c/ l9 v
, \# X( k& H* n% ?! [% \" x- y) e
;;每一个turtle的全局声誉都存在此LIST中9 a& w+ n" `# C$ Y
credibility-list
" i9 G9 ?# m4 C2 Z- s2 b0 ?2 G;;每一个turtle的评价可信度5 N1 P( W, T1 z$ i
honest-service
8 B( Y2 N+ K- Q& G% n9 aunhonest-service
; H. B' ]! s2 A9 [oscillation
) S/ D( b5 v$ R; ?rand-dynamic
, g" j! _& y& e$ J* a]
# \5 U$ L; v8 n; ^# B( t5 `4 U5 H- ^; e/ J' L
turtles-own[
+ K: P) |! k% M3 g+ F" \trade-record-all' ?7 _1 I9 v# h+ N `/ U
;;a list of lists,由trade-record-one组成
0 R( x6 Y. B% _( z8 Ptrade-record-one
5 w [1 _0 @8 d. e( Z+ G! _;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; n: Q. g* K: s4 B/ J, ^6 `" f
: g. _/ X( H7 `; V( S;;[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]]
' H f6 |8 a! O8 etrade-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]
! o/ J: h& v2 N# L: ~" F% _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: ?& i' B- t* }
neighbor-total
* Q. {& y3 v" L$ Z' y;;记录该turtle的邻居节点的数目; {. p. s/ j9 ]6 j+ f% n' p
trade-time- u1 h. e( F f
;;当前发生交易的turtle的交易时间' {9 n) J* [: }7 C. @) o
appraise-give$ M$ w$ z; o4 @2 l2 t
;;当前发生交易时给出的评价
3 L- w" l4 r5 Z& b" J3 Q/ Xappraise-receive# `' J: t& m" Z! w1 u
;;当前发生交易时收到的评价
: w( R4 C, z1 zappraise-time
$ f$ n; I/ @# i" x2 ];;当前发生交易时的评价时间( V! q6 @2 V; o1 Z& H, ?8 N) l
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ Y- P+ a5 ~( k& Mtrade-times-total
3 j5 N" E8 L5 e1 K7 h# x;;与当前turtle的交易总次数" T- U6 D8 y1 Z2 I, h5 }# w
trade-money-total- s6 n. z& P! }; f7 N" L, V
;;与当前turtle的交易总金额
2 ^' A0 m- B: F, o5 s" ]$ elocal-reputation1 k, _' X6 f2 k1 ?, N
global-reputation1 c7 }% C& e8 J I
credibility
3 Y+ h/ T7 A. s. g;;评价可信度,每次交易后都需要更新
3 D K- S/ `( @# }* w2 Ocredibility-all
; \5 k! ]" o4 S! l% R;;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 N/ F" M8 C1 [
& @, ^, y) Y7 G. `3 m. H;;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$ L f7 G6 h! P- q
credibility-one
( `7 d0 s1 K6 _;;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
: A2 T1 [9 `7 p- D) C$ Jglobal-proportion
$ Z7 }$ h: Z( U. s0 mcustomer
) S- @ X4 r0 s- U# Q& m; y, zcustomer-no
5 L2 f# b2 ?9 l& Etrust-ok
$ j" Y6 b/ N" d6 r% g8 S. _' Btrade-record-one-len;;trade-record-one的长度
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# ^6 `/ j! G5 o& C+ F& d8 V! n" J
;;setup procedure
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2 B5 s; c, h. N6 {9 g9 f) r2 ^) Nto setup+ w+ r2 z X& f
2 M+ a2 S8 j' Z0 Y M5 y1 d- @2 r f
ca
7 b y* e* a. o4 H* n: a+ i
4 Q5 m6 C+ `, ]/ d8 \7 G4 B, qinitialize-settings
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I: e4 E: ]$ t: ncrt people [setup-turtles]# q2 k0 p8 V2 U* k
8 h' o. k2 P% G* A& k% I3 L+ k
reset-timer
5 D& s1 y" T. Y0 i
) J! z7 k/ R7 T2 x5 f: V- Fpoll-class
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setup-plots
v: p5 J. L5 T: w4 J. e2 u. P5 S2 C' z' ?' w
do-plots1 m; Q. @0 z( Z; H
end
+ l) T, F! V7 H1 n8 n$ W
0 R' Q/ d. [) Tto initialize-settings
3 k" m8 ^% O4 F8 Y, \3 d1 T
) k# q1 ?1 T# v! p8 Iset global-reputation-list []
1 K. x5 D2 [8 q" M8 I; t+ a m7 L
set credibility-list n-values people [0.5] ~5 f! n$ t0 K1 p
( x: E- M q2 w! q1 Yset honest-service 0! n: c7 U% T6 z8 E3 G
2 j4 P: X2 m; T% D9 v! j& } y% b5 Jset unhonest-service 0
. q+ x9 _5 y1 e/ r5 l
. Y* J5 U! y1 j1 @; @set oscillation 0
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set rand-dynamic 0
s( I" C, ?3 Yend) Q8 v# V6 c1 ]3 s Z
* v/ S2 r- j( V
to setup-turtles
+ k8 j2 w1 _. ~' Q' ]set shape "person". G) @$ l1 W' Q( M5 |/ f
setxy random-xcor random-ycor u& R# f. U; {
set trade-record-one []
/ _( R1 g' n1 i) W) w4 ?6 l8 {( n1 w" S( Y; I+ E
set trade-record-all n-values people [(list (? + 1) 0 0)] ; `, j8 d2 C8 C6 u! ^% R! j8 x0 q
: g- K' ^2 J9 s9 S& C# T" \' N! d
set trade-record-current []
7 o3 ^) o, T9 Y1 [ m& e) M( `$ v# Uset credibility-receive []2 w2 k5 J5 @" r0 ~1 F) Y# [
set local-reputation 0.5
3 E9 g8 g6 C, @0 y5 Z8 Dset neighbor-total 0
2 i8 |2 y8 x/ K+ F; Fset trade-times-total 0: T3 K" \$ H4 U7 r1 N
set trade-money-total 0
7 D u) ?* R" D* \/ lset customer nobody( X& A) W5 k1 k
set credibility-all n-values people [creat-credibility]% q N% l0 v# \" a0 |
set credibility n-values people [-1]
# A- t$ g5 e" ?8 f7 }$ J6 \get-color1 F6 I2 W* x& V% Y3 C+ }9 f' z6 [- y3 d
$ p8 O5 t& A7 m$ l& M2 pend0 n# `/ w/ Y( o# j
8 y/ I1 N+ g/ B* K+ @to-report creat-credibility" g5 {* t+ h& r+ @3 }. I$ b+ ^
report n-values people [0.5]* f& k- n! h# @, e" P
end' ]7 v4 m0 i- d$ V* F
" o2 M$ f5 ?5 ^* Z' i( eto setup-plots
7 i' _8 F7 ?5 b, z1 h
' `* G) t$ B; ?- U0 `& m* Zset xmax 30
3 G/ H& D; {4 T; c* B! m' @: ^" C L9 E& q @- R" b* z
set ymax 1.0% Y8 n2 H3 M% k& [ j ]
5 I( t r& Y" b0 }3 T
clear-all-plots! z1 V- ?' s- [) z, G' c
/ B2 X( X8 u2 |' _3 Q
setup-plot18 e/ O/ ]' E4 C% [. P
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setup-plot2# u6 m9 x2 W6 B3 V' Q
. N4 C) o+ x- A8 Y/ xsetup-plot3
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& `0 ~. w+ Y5 Y. T2 }+ b$ C
;;run time procedures
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to go; N1 S: v& j* ~4 {. F) v" T
2 J0 A5 h! N: @; D1 M
ask turtles [do-business]$ `3 z7 v+ {& k1 \; f4 X- a
end. r" P) z2 k% K/ N5 ? h3 p
3 z- K- {7 g3 I8 x5 R2 t$ O
to do-business
2 z( d( b7 q& s) o% b3 n9 O) b& C8 S
: o V4 @ n3 B0 |/ ^( C/ u3 r$ f: G4 S( ^5 |
rt random 360
7 e5 P% k9 F# @. A8 i" M: {* y* f X& `# J4 n
fd 1
1 F" t4 @% {( `- {, c: g
. B6 r$ p L- t& s' M) A6 Nifelse(other turtles-here != nobody)[
; ^" T/ `. }, M; _; q5 [# [! {$ u" I" P- N+ n) s
set customer one-of other turtles-here
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3 T* A% Q5 X& i" ^% y" c;; set [customer] of customer myself' s- `8 B) Q& }! ^# V
! }3 W9 S+ P* Vset [trade-record-one] of self item (([who] of customer) - 1)
3 _6 h6 }- i X4 |& T2 K8 C8 b1 g8 d[trade-record-all]of self
9 d2 Y+ T% g7 ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. O- h% a6 {" x# V: ?4 f; `
4 }+ B4 s! ^/ ?- }" vset [trade-record-one] of customer item (([who] of self) - 1)
1 q" ]/ \+ R2 ^[trade-record-all]of customer
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+ |: c& I& l5 N# nset [trade-record-one-len] of self length [trade-record-one] of self
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1 f) K& r1 ~6 T0 ~" n; Lset trade-record-current( list (timer) (random money-upper-limit))3 b6 P- K1 @; Y
8 L& Y1 m0 `6 O4 V1 z
ask self [do-trust]
9 J0 f! D: U& x4 [, R;;先求i对j的信任度4 d& b# Z- [& H i/ u( Y! j4 T
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if ([trust-ok] of self)2 h3 h! B4 P# w
;;根据i对j的信任度来决定是否与j进行交易[0 s. g; C- b: _& Z5 \% v2 a a
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* }2 Q5 M, [, {$ I8 h5 w
# ~8 v. _3 c5 w4 V
[
2 O2 P; y2 u, e( q* h$ g
- O' ~2 r: h7 w% l* wdo-trade0 [+ g# M$ K& z" G( h* r
5 C/ @# {3 k$ R( ?update-credibility-ijl; A7 M! o4 p) I9 G8 N
9 A8 x" d% f: ^' x2 r F! p1 N, tupdate-credibility-list
9 J5 M' W& l, ?2 }. r
2 E; Y! s- }( G2 G2 @7 J0 ~: w8 p' R/ o" p* W
update-global-reputation-list
: ~% K% n6 x: Y1 J6 A. ?( U ?+ s( f5 n6 v$ `3 K4 {+ O- r, w' A9 I2 R
poll-class
6 B1 l9 j, i& e8 C5 E4 l# J
# q, W8 {) S# x2 Eget-color
; c+ m" s% B/ J5 g$ G8 b N: t! f" m3 k0 Z# \% W7 ~! {8 X9 k
]]
' u# }! D7 j4 D+ w+ U D* D; `( C; c3 D c+ t
;;如果所得的信任度满足条件,则进行交易' {) U$ A' v7 B, V
) Y( T0 T+ W: a& F0 {[( W* V$ h, x' _& g, N# f! s* u
! f$ {% h ~ R/ G, Nrt random 360
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fd 10 Y- L' L) h' r
. c+ q" K$ [1 t1 Y5 ?3 B* v3 W
]
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: s. C: o" G3 P* x0 x3 B/ F9 W# D2 eend
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" Q6 ^/ D5 m h6 Xto do-trust & H! [* l1 L# n, |1 w( I$ p
set trust-ok False
! a9 v1 F2 e$ J8 O. A' i3 W" o9 K' i6 F9 X# S; o! A
! U# {$ N. D" Q7 klet max-trade-times 0
6 Y% A9 l# t+ ]- D1 cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 j# t2 M, V2 {+ `let max-trade-money 07 L4 R i+ O4 j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. k" i% B( L0 F9 Blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)): R# S% `0 o% Z! D+ f6 ~
% _( X; p% R* R' i
! V- e% ~1 L! v
get-global-proportion* m; F; y' a5 d$ Q; a) _
let trust-value* D0 ^! U' a) |0 D0 i0 G" w3 c
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)6 x) a3 E. S4 [3 X
if(trust-value > trade-trust-value)
' G" h/ {& s6 D# C1 V% z" D. i; @& z[set trust-ok true]
]- y. Z$ t# \9 H! F7 z$ K, i' E i4 _end
4 h' a& j9 M. Q# Q+ t( J9 z8 f
, d m, r- [/ Z/ R1 H9 S6 t1 [to get-global-proportion
# a: C) }: u* W P, ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* x0 e5 n" [! p4 q* o# r[set global-proportion 0]9 `+ p& c6 `( O8 f& k
[let i 0
+ g3 c! |3 `/ M" B$ o6 \* ^4 olet sum-money 07 o& |4 X7 Y, N: ^) q
while[ i < people]
# w. p' @ E0 i8 g/ S! F[
1 F; M/ a4 f# ~* T0 }) Cif( length (item i4 k6 Y: a3 p8 [8 h& P% K) r
[trade-record-all] of customer) > 3 )
2 O, E2 c, A/ k# N. k" }[
% R& ]3 t `. u0 zset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) v. f E% D! Z% ~! X
]
3 q3 b9 ]( i# X* @5 J/ e]
* M# p, F8 J& Y9 Z Y- {8 Olet j 0+ J2 O8 Z8 m8 d+ d! [2 k! V
let note 0, Z1 ]7 l+ ]; e! }
while[ j < people], Z; C8 v/ W: u2 E D8 a
[; h; ^8 k$ _: v6 O) _
if( length (item i
! A5 i% d; w4 b1 `7 _[trade-record-all] of customer) > 3 )( k3 G9 f/ e( ~5 _, `! e: @
[
' U7 Y0 J; o4 Yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' H$ y% g! C4 h6 n$ f! o: L4 Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 Q) D, \. p) Z+ ? s M8 ?: S
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& T4 X. e" s. m]
5 N8 f8 E- P* h& Z]& J( Y# V) g9 \3 C% x# X
set global-proportion note
; v9 z( i/ o) |3 t]
4 G- ?- k4 O2 }1 a& w" A* O% Z8 d. |6 Uend4 E8 e1 I- q: z& u4 n2 ^) L$ l
* Q+ _# w# ]; v3 g5 N Z
to do-trade
+ r( M1 H/ s2 |% u2 y u; L;;这个过程实际上是给双方作出评价的过程; M# b, ?( U; T3 l U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 h9 A4 J3 i" q* t' H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( F' r% g4 ]9 o" `$ }: g
set trade-record-current lput(timer) trade-record-current" P' M: O% }$ Y2 c, e5 `$ s+ D
;;评价时间
" c/ z k3 G# K; u% V& @9 |0 lask myself [$ X6 e; _; E8 H" P4 b/ w; C) q
update-local-reputation
1 w7 p* o9 ]2 A, i- f; b' t# d9 fset trade-record-current lput([local-reputation] of myself) trade-record-current
2 X" R: P2 y- @1 ^8 R]1 Y g( f* b$ h; m& C6 P4 L4 T: G J
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# r' V2 p' r+ `9 Q& X7 N" c. G$ D2 G;;将此次交易的记录加入到trade-record-one中
2 `8 I7 H8 p. P- z/ H4 H) p* |set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* v& i" C3 j: \: k$ Clet note (item 2 trade-record-current )0 M& K0 O0 h+ }. o. p
set trade-record-current
" ^1 V5 l2 C! ~$ b(replace-item 2 trade-record-current (item 3 trade-record-current))( ^& t9 W' @9 w7 |/ _1 Y9 X( @' Y
set trade-record-current: ?& _% U x" Y4 F: E
(replace-item 3 trade-record-current note)
_% M. Y4 G1 P0 u* N
/ y1 P4 p3 A( O, S8 P5 G# x0 L3 i, Q7 B# S4 g& t* R
ask customer [
. g1 F- i; K# N% Y9 p2 }- Uupdate-local-reputation
6 F6 ^* x" M3 B2 f) b( @: R/ Rset trade-record-current& \& E; Y X6 I( x* T$ p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. v: W7 }- q! {2 g. E3 |5 D]6 ]( V1 f8 Z* V" L# O
) z! \% Z; l m4 C* l
z) Q4 [& }: k& q. f$ Y. H# |set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! q. V0 ]8 ^$ \! N$ o# j9 Q8 I- t' [
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; J' k- z! [0 {2 \, v) {, g;;将此次交易的记录加入到customer的trade-record-all中
- |: e1 B. I; l5 I3 L* o6 Iend4 F; W- L8 @. m3 Q4 J
$ G3 }5 P) q: W9 V
to update-local-reputation
4 J7 x, i9 F, I) [$ { o5 [0 Wset [trade-record-one-len] of myself length [trade-record-one] of myself
5 N, J7 [7 t4 [
" D2 R( X9 n2 l7 H) q3 U2 m$ k) G; k' a+ ~! @+ ~
;;if [trade-record-one-len] of myself > 3
) _) G+ }( t3 X8 B/ u( R3 J3 A! \update-neighbor-total" D2 [) \1 P( J& r, b4 T
;;更新邻居节点的数目,在此进行
$ d4 p* X6 R Zlet i 35 o4 H- }# g) N! S7 U$ m j
let sum-time 0
% P; i+ `4 K, ~while[i < [trade-record-one-len] of myself]
2 r8 b" U6 L7 K4 D# _[' U% m) e7 Q. ^+ s
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& R; ] X/ R+ e2 g8 wset i$ d6 V7 Y M8 D' X' f& Q
( i + 1); e' `! v1 r; G% N
]
: g& N5 {: t: v) j. `$ ^8 ^let j 3- u* ^6 ]0 a; J# K5 T1 M6 ~
let sum-money 0$ v/ c0 B$ g3 f5 U9 t- ]+ v
while[j < [trade-record-one-len] of myself]$ \/ B/ v- c4 x/ ~; E% V
[0 [0 S' u: a2 v+ `' _/ i
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)
- y+ H( k' J: J7 p* Kset j
5 ^: Z# Y( `$ b5 T- j$ E1 n( j + 1)4 _% d/ U6 @$ _6 X8 D0 n: O
] \: l3 Y# e" J+ @. _
let k 3
( f6 b$ e# j' K% flet power 0: S6 x5 C" Y: c
let local 0 j. i) G! v0 V1 Z
while [k <[trade-record-one-len] of myself]6 n/ ~6 [: c: B$ t3 D. p% U, t
[9 t& o+ b/ e. D
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) Q9 t( P1 n5 p1 W* z- Q e d6 u+ d
set k (k + 1)
0 f5 W T3 X# F2 Q) Y2 ]]
! w7 P8 `2 H/ n& {8 ~set [local-reputation] of myself (local)
: ]/ W0 @$ M$ _$ Iend, q0 A) }. E2 G: c
+ ]) U& s( D' vto update-neighbor-total- m( @7 \; L/ D. ?/ {! ?5 d
8 w r7 H$ E$ j4 Y- _$ X3 Xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& z( q3 \9 q3 i) U. {. Y D2 ^# j+ \+ o9 A6 o0 m% l9 |7 S5 s
8 _, o4 t+ R3 W* M& t" z
end
( z% J$ d* ]: n- s8 p/ w# i* w4 \" Q/ ], O; _. T
to update-credibility-ijl 9 Y" e' {! `$ z& M) X9 A
$ j) ^! J- a% g. 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。
S) K* O7 M7 G6 I9 j& X) m& qlet l 07 N$ M/ l% O! ]: D9 i7 \, L
while[ l < people ]7 S' N! ~5 K* W7 j& H
;;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
+ ^' K* q( U }2 }1 G l7 h4 L[
+ ~3 X. i# t9 a4 J7 |let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( t. K/ E* v4 ]+ @# e' Vif (trade-record-one-j-l-len > 3)
4 d* o4 H3 y4 e0 W/ n8 d[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
0 h6 P A, K5 g, I* q/ r* d7 Dlet i 3$ I3 ~; j# `9 h
let sum-time 0
2 a5 [* a3 h2 P% e- Qwhile[i < trade-record-one-len]# E9 a5 x* y( Z4 Z" U: B4 w2 s
[
$ K, \- l9 \8 p& `8 fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 J/ ]9 q7 P- }, ]5 s8 j% y- A1 w
set i6 S" F0 g1 q. [ V N" f# v
( i + 1)& p9 r( q4 n2 E7 _+ V. i6 g
]
7 C' h" ]2 `! F- p. C/ k1 L: l6 Elet credibility-i-j-l 0. H/ Q" S9 L8 O4 l0 u% e
;;i评价(j对jl的评价)
0 M1 D8 P3 m; o+ t, k8 W$ Z) H0 c' wlet j 3+ l* a5 E% ^- ^8 ]4 j
let k 4
, i: G% x. d: \* Qwhile[j < trade-record-one-len]
7 {( F( g/ O; c3 \6 t9 g9 `7 ][
. s. M M' e/ x7 zwhile [((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9 x, ^& }% f9 C1 S; W. ?& @6 `
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)
! \6 E" u2 e7 t3 Pset j4 B( {: w% ~+ u/ m% a
( j + 1)
# k4 n! ]0 T6 v6 g0 A5 m]
* }# U3 u& M6 x5 q2 r1 ^) ^% Wset [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 ))9 A- ?- Z& m8 P$ g O9 [8 Y1 S# T
0 n' j% Z7 ?# g8 n
- W" e/ N6 V' u. }/ y* z5 flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). m1 Z9 D& d" W
;;及时更新i对l的评价质量的评价8 a4 i/ |9 m# k" J: ^0 y& \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 I8 i8 r) p G0 G
set l (l + 1)/ K2 ~& \7 \( U% }
]
% i N+ S. b/ t$ L7 s [& r8 bend% V2 j: U' Y: `5 i9 p- C
: d' Y+ C: D4 W" t
to update-credibility-list
1 Q4 ]3 \$ P% E8 @- ~2 \' Llet i 0( [7 u" _; Z7 ?6 @
while[i < people]5 H5 P" F$ r2 H% N& e
[1 Q3 {$ [+ J; Z3 z* U2 N" L
let j 0
0 _# V4 W+ y# @; J- Jlet note 03 d( D. u& u- u( f: s& p" n
let k 0
1 N2 F( P; M+ z& e' @7 ]* t: \% @;;计作出过评价的邻居节点的数目 L) T c5 g% n+ z( F7 n
while[j < people]! ]$ i! R2 z) ]3 ], s0 x
[ ` \8 k3 Z ~
if (item j( [credibility] of turtle (i + 1)) != -1)
" t; d/ d( L5 {! [( q% Z6 c# b, w;;判断是否给本turtle的评价质量做出过评价的节点) a$ z! Q* j/ R1 t- S3 x
[set note (note + item j ([credibility]of turtle (i + 1)))* C. u( k6 D. n# r. `
;;*(exp (-(people - 2)))/(people - 2))]1 I9 G( Q% f$ |9 c P+ s3 h/ {
set k (k + 1)
1 N8 k8 Y, a6 M6 W' X8 s]
' W% p) `! l0 Qset j (j + 1)
7 Y. |! K, X; g6 E0 c+ y]3 t/ D1 }8 v. S, \8 X. t
set note (note *(exp (- (1 / k)))/ k)' w+ @1 A% {! c
set credibility-list (replace-item i credibility-list note). M3 W7 C! H, | n2 I2 ?
set i (i + 1)
! E. k! a3 G3 _& P]
4 l' w% ?1 x6 r: z: ^; Eend& s' G( t& a% J/ U$ N. p2 q
) u; k- w4 ]1 H( A' @& v6 b- Gto update-global-reputation-list
: s# P: u& \( \0 Glet j 0
8 f; R y7 w) f: pwhile[j < people]3 k( S6 D+ E h3 N% c
[
" D: X2 n2 K' Plet new 0% U4 } h6 F/ O* G5 r) X
;;暂存新的一个全局声誉
2 f: e9 c6 `! V& z M" X6 ~9 O4 Plet i 0
! ]/ q2 p3 ^+ c# e0 b/ \( O: Dlet sum-money 0
; t$ Q7 Y n6 @0 m) alet credibility-money 0
: z& [" N% R: b: a- Iwhile [i < people]
5 W0 h" u3 e1 p0 Y/ \+ z[
M5 \9 h5 n8 P' B, Y% mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 G8 N" U& X8 y0 c9 M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 E1 b" f9 G1 Jset i (i + 1)
9 ~ ~2 Q, u) _# H, t' M- p+ t]# ~: C* b0 J0 I+ P# M7 H- |- |
let k 03 ^" x$ R* K% t
let new1 0. ]) F; G" O$ f' X, t% ?0 v; |* G. X( W
while [k < people]
% J0 o7 _' D! t. ?[2 ~6 E: z3 `& X4 ^5 H0 F8 c
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)9 S) e/ ^. O! _. H5 ]( u5 w
set k (k + 1)1 h) Z4 N/ N' a
]
6 m: B: a9 D6 O/ O0 D6 ]set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' G& }) a, L# }- q. j) i
set global-reputation-list (replace-item j global-reputation-list new)
l+ K! F m# ~# Dset j (j + 1)% i' j+ Q" D+ i& l! F* C
]
1 k' u( \. I7 z9 x2 cend
8 d5 E, W' V# x# w# z" n( O7 C+ Q
, a7 W' m/ T( G9 a
- d4 ]* [1 @: t' M) Xto get-color
N& h0 C @; [8 E7 K, w1 x+ t' e
2 u3 ^0 f" | z. o! P0 Sset color blue$ w# Q% M- B9 X* A. F0 M) A0 w
end8 D; ]# I8 Z) ?. ^& V! \- W
. ~# `# S# c& l8 O2 s: [to poll-class7 |. p* k& N& `: w0 l% z' P/ J
end
3 D4 _ e+ U- Y2 r5 N& }9 z( N6 t- G( m+ x/ ?2 Q8 D& r2 w8 e2 t! E
to setup-plot1: t$ Z, i$ a+ t
7 L) N" M& z) R! h+ K" h* m) L1 w
set-current-plot "Trends-of-Local-reputation"
$ b0 D. }6 ~; a9 r8 `9 \( j$ ~6 m. `: _. a( f& Z
set-plot-x-range 0 xmax Z( j, q( _4 C) X& q4 v
8 c6 f' D, t7 {8 U9 F# ^# Q0 K* f7 J
set-plot-y-range 0.0 ymax
$ W* y! |3 L( r& Q+ }6 p% I" M* Iend4 }1 V. }# a4 a+ ]7 g7 |
& Q* c; A8 z( K/ k$ Cto setup-plot2
0 R. @6 z. Y4 f; d. H. f5 M
5 V5 X0 O4 P; Jset-current-plot "Trends-of-global-reputation"
6 K. R# j y: x% V& V& Z( u) B& L6 C' N" N& r) k) V; J1 v
set-plot-x-range 0 xmax/ L3 |. C1 w' T+ O; k, C* Q3 z
- Y- G7 g8 D! A
set-plot-y-range 0.0 ymax' U, ~) k! K1 [5 |: ^1 p2 ]; n4 {
end
8 {. J7 @# z; u" V4 Y# \) c5 ]- V3 y" O; X3 }, J( a8 x- l( r
to setup-plot34 w; A9 h5 e" K
$ s; t8 `1 ^; O9 Y: |- C
set-current-plot "Trends-of-credibility"
2 w% s& I& k9 x8 H3 K$ D& ?
( Y* J# p; G8 q" Fset-plot-x-range 0 xmax
1 M2 @3 m$ x' p+ n, z, Y& L) R( ?9 _! ^$ f$ z% ?( L
set-plot-y-range 0.0 ymax
) n& F2 [: [. ^* k: x+ Rend
' u& k- b- B8 t! p1 b9 @
- b- E( i1 Z% u$ t0 g8 ]to do-plots+ e r! `, R2 O3 [4 D5 t: W" h
set-current-plot "Trends-of-Local-reputation"
1 z4 V; C+ U7 y* u C' c( M5 }set-current-plot-pen "Honest service") d( A5 M$ P K" x' A* b0 h
end# f" C- ^+ u/ d
! D8 b7 v/ [) Q, `% _$ [1 X3 `3 w
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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