|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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- }# E x, \. F4 d7 g2 }
globals[
1 }2 f! f6 m+ k* N e( m! v( wxmax' A3 c( e0 T: a8 g, C
ymax
8 s L9 T' A* v1 Z2 n' Tglobal-reputation-list
! E+ A5 f7 {" m9 S4 H4 a% }) F/ n8 P. V, {
;;每一个turtle的全局声誉都存在此LIST中
2 k6 E) z8 ~6 b% f2 k4 ]8 l/ ]+ [/ e( Ncredibility-list
5 `8 c* R+ s( K& ~2 ^- i6 ?;;每一个turtle的评价可信度* Y+ q" Q. W8 j# U, J
honest-service
; W2 g3 ~, b( x e1 ?8 ^unhonest-service
- l: O3 W$ _4 P8 p- X# u' Qoscillation5 T/ e- E1 [" j1 x8 e
rand-dynamic
: y/ G" X; R# Y0 q8 Q]. I1 W- Y2 @( |) h9 W
% J+ b& p8 I. @ r1 r
turtles-own[. G& I4 n2 Y0 T, `
trade-record-all
* t6 S Y4 W* k& A;;a list of lists,由trade-record-one组成
$ N$ b' u( R* \- _' \5 ^trade-record-one
& q3 m D4 W9 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
) x, ] R1 ] j* k0 u$ B" m! g6 `' K5 C/ h
;;[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]]* ^0 V; z! E. L; u) r2 F' H, x# W
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]
/ ]& c% m4 v' |2 C3 U! l' p3 h' tcredibility-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" J9 q& `2 ~8 X) `! Z
neighbor-total. u" i& Z Y* j X0 V5 D V
;;记录该turtle的邻居节点的数目. s. D1 @# v- j
trade-time
( @9 Y1 F3 h- g" v6 M;;当前发生交易的turtle的交易时间
5 Q- s8 c0 R. }; @: h* `5 D7 V! Happraise-give: k l ]1 E) D% M' q
;;当前发生交易时给出的评价
z6 x4 m+ l3 A/ |% N/ I4 Uappraise-receive
& X+ Y8 r7 q6 i3 j: [" d;;当前发生交易时收到的评价
7 p5 T* A7 U o; \2 ]appraise-time
' U7 P1 x: q$ |, N4 l;;当前发生交易时的评价时间$ @& b0 R' I" f& d% b: ?( j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
, |7 B. \% ?+ Z6 G }trade-times-total
) x* @' X9 E' W1 o3 k# |# a;;与当前turtle的交易总次数
y' l% i/ R! \2 ]; R8 W' ]* \trade-money-total
3 i. T* m2 o% m! g! [" h;;与当前turtle的交易总金额1 k0 [7 p# u; Z/ {0 W Y
local-reputation
- g* M" `6 ~: I9 z% iglobal-reputation- x% _1 u- I" W. I* K. x/ V
credibility
% V( S1 z( f$ D. Y ~; T;;评价可信度,每次交易后都需要更新8 W8 w/ r- Y; ^' N" w7 f
credibility-all
' p# u7 E6 {# P* Y9 @' t; 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
2 p6 L# i) _& q5 T K
" P& o1 z3 l! E. c8 ]% e;;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
, z* o8 k8 |3 y5 {credibility-one
* K+ R2 P, ^% I" b- |;;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3 _$ Q% i, d: i' ? h' a0 u
global-proportion
5 [# P" K. n3 R. m8 N7 N( qcustomer+ q: Z* Q% E1 L/ c
customer-no
[5 o( C7 x1 K2 ]$ \trust-ok
1 h7 P, S# S1 M. `" J/ Qtrade-record-one-len;;trade-record-one的长度- D0 `0 |9 d& v/ E) _
]% p) \ @$ T; l+ i
$ Z5 y6 n8 ^9 d S H* |- S7 M1 t' T;;setup procedure
% |* ^ s. `1 O* w" L
7 n5 p1 ~1 J D$ o' K/ \( U/ `to setup
+ i# P6 b" N8 ^; o8 V
) Z. t e5 r$ P/ rca
t {- O$ M( a' [' B) [; d; ^9 ~+ X/ d5 V
initialize-settings, _/ b3 B; o7 t
3 ?4 }" P* P1 T4 H Z8 Qcrt people [setup-turtles]
& j" s) \' q3 C; {# s
% [2 p; x+ C( C1 {+ sreset-timer
: a! ?* ^/ [9 \) j8 V! p$ t" |4 `8 e0 U0 T- O5 }8 v
poll-class
+ r& w$ s9 q9 @8 \' }% A/ ] u: D: D0 V8 H/ {. d" |
setup-plots6 ?' ]- K- V, B& Z
' t1 u! O8 w4 d- J' z7 j& Pdo-plots# P! B0 Y" s( x9 k( l* D* r5 [
end
* r$ y# H4 u; m9 v& Y: l) |7 n/ S' V- }" b
to initialize-settings
3 u% L# M7 [, }. l% n3 o9 [' V( [: k2 C1 S# X- H0 A0 J; C7 n
set global-reputation-list []
1 Z0 Y& Q% P, G+ X- h8 B8 O
) ~1 ], N a7 _2 W) W# \, a% Z; Pset credibility-list n-values people [0.5]
8 i5 Y4 }( f) u" D$ X5 E/ w5 j# Z' g* I# p8 X/ W. K/ \. V
set honest-service 00 I, G/ S& N1 T# c# q
. N; v- R, W1 d
set unhonest-service 0
$ R, `, ]- O: B" o: u8 E
% Q$ Y& k. x- E1 f* Q! iset oscillation 0
" j" m' `/ D, {( [6 ~
/ b* I) P5 V2 o9 _) r, T" gset rand-dynamic 0
/ G) }. D b' S$ `+ N6 @end
" ?9 f [: W2 O: {6 l; Y. m! K4 m; t! S1 U3 T9 |: P' d' i! ^
to setup-turtles
# T" G$ X2 F+ [( H! Q% cset shape "person"
, j* g8 H/ h; c6 J' ^' s$ esetxy random-xcor random-ycor
7 R% M, @/ W( ~set trade-record-one []
" f* {! I6 Q( x: W4 `9 g! `1 ?: V3 C' k0 u' `
set trade-record-all n-values people [(list (? + 1) 0 0)] , \( M3 w" S9 c
; e3 s* m! {% ^: d- ?% A
set trade-record-current []
7 M' V8 O6 A* ~5 z8 D: N" o0 H/ Tset credibility-receive []
. G0 c) j: m* n) ~5 p6 Lset local-reputation 0.5. U- A# Q @* E- L2 m: r
set neighbor-total 0
: W7 k2 l) \. J, Xset trade-times-total 05 \6 k5 I& s8 q0 |1 x0 V8 I7 _
set trade-money-total 0
( S& E7 N% S+ v( w7 y, v0 aset customer nobody
1 o; d( G7 Z9 j9 jset credibility-all n-values people [creat-credibility]
* Q3 u( @1 ]* d4 Z! M, x lset credibility n-values people [-1]/ L4 C7 p: \* x3 l3 u
get-color
* E) B% B2 W7 \' K; C8 O( g% O; _$ ]2 o. y; g
end& F' M i8 ~* p# O+ g
* ?0 g% h: I# N
to-report creat-credibility
& D i% }2 x' ~3 B6 k9 w" n, Sreport n-values people [0.5] k- P. v3 ?; s. V/ g8 w
end
/ j) i$ { w) E& g2 Q+ T' v# ^
* @& j3 H. T9 n. e* oto setup-plots
, i/ f. D* L J; Q* ~- s" ]/ u
+ B/ O! R) M; O' \4 tset xmax 30+ ^" W; e, k2 o- Y6 `+ Z
& ^/ P/ w1 z6 s B; v Q0 _1 ^! P2 c
set ymax 1.09 f$ t/ ~* j+ h9 m. s& C! `6 E
- B: G+ S0 ^+ N& N2 A# n5 Sclear-all-plots
+ ` L y0 Z* X
2 K( Q0 S1 d D6 i& u7 psetup-plot1
+ j2 |! Q7 G! G. ^: p; ~( T( {* H/ r
setup-plot2
/ D5 Z- P6 X4 V- n% f8 }. Z0 G, r6 @( I" L
setup-plot3
' _6 k/ C6 N8 @9 p" @, wend& F6 j* x; W# [2 ~1 H4 m
- w5 S/ g' H" ?, ]% N' j7 t
;;run time procedures
' H' h. K2 ^9 | O7 ^
# }5 y: x! m9 C: n: ^4 ^to go
$ T9 x" L- D3 |& M: c7 p4 P4 x" z$ \7 J b
ask turtles [do-business]' o4 s! j' X( p1 f* E' W
end$ w1 v; Y& ^3 `0 s
8 |2 {3 G0 U7 A. d1 zto do-business ( s- L/ o# _: S, C& J5 W7 P8 e
; V6 F2 H# z8 N( }+ K
) B0 i* C# j" p7 M5 c Urt random 360
" u1 \+ A9 n$ w6 {" p1 n( g6 _7 \4 Z2 d( P, [
fd 1
! p2 e. M* s+ ^2 a3 x3 v% d& a Y1 h& a: _& E
ifelse(other turtles-here != nobody)[3 P; x w* ?6 N( ?5 b7 y
1 G: h) t5 z3 z0 y$ Y0 s
set customer one-of other turtles-here% O! e9 q9 {, r) `
' z, @ f }, X. y3 O8 p
;; set [customer] of customer myself
" k) Z- g! v# A0 d; _ K; a7 S3 h2 z3 U: `* z' T
set [trade-record-one] of self item (([who] of customer) - 1)
, @0 y4 \" d: N[trade-record-all]of self( O7 ?7 F G4 y9 k8 P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& h, U; ~% Z( A9 _) a4 |+ {# u, U/ T) H9 L, L% G
set [trade-record-one] of customer item (([who] of self) - 1)
4 m) s3 s+ \2 Q. f2 t7 u[trade-record-all]of customer0 r9 `* @: q: j! Q7 |; R
6 H0 _6 {% v7 U4 e7 x; k/ |: Aset [trade-record-one-len] of self length [trade-record-one] of self2 q( n) g: B6 x% D
1 d+ X; X' t; D( Y1 K
set trade-record-current( list (timer) (random money-upper-limit))- r4 ^0 w- @: n' l2 v/ L3 v
! {( K0 @$ l; p$ w% ]' O/ nask self [do-trust]
4 W" c B* W! k8 l( w( ];;先求i对j的信任度, K7 c$ }7 p' r. L$ e3 k' l6 Z
0 q6 x7 \1 O8 G# K* | U# |if ([trust-ok] of self), k' M2 K" \' b9 u0 P& M4 ^
;;根据i对j的信任度来决定是否与j进行交易[
8 \" Q" L5 e5 N! h# Q8 W0 Nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) F- E2 r2 M; F4 Q( p8 s
, l; F' p5 ?) y* V6 I[3 q: @7 z( J m' I' E- w2 N
4 }3 R2 n/ y" H' B
do-trade: F/ F5 ~/ q' E. V9 I: P9 ]- P
( a9 w" s; c3 l2 o- T4 m
update-credibility-ijl0 }) m( p. }: R \) Y! S
% T6 H9 p$ G0 P0 C8 B% M$ F
update-credibility-list
$ b5 q j$ x2 K4 S3 \# D: `) P; } w0 l8 W' V/ h) H9 U
6 z& M. w* _: Z* g! F: A" Cupdate-global-reputation-list
/ t2 F F: @7 \5 z) v6 H
- u4 f. Z5 b7 b' e! f5 Q- Tpoll-class
9 L' U; h/ y, {2 q. d0 ^- B
' f. P% O9 E4 g& e- bget-color
0 m; X; T; e+ n0 T( ^$ E
" U0 Y8 W( K; c/ O7 M" a7 @; j]]# b% \7 [3 w. h* s6 \7 b
, a8 o- E R9 N% P& o& J
;;如果所得的信任度满足条件,则进行交易
P' z- x) t8 ?1 P
! H* R, a3 t5 @- F$ H[) a8 i% G; \& Y) i' Z) r+ C
4 Y3 m+ `- a/ d( H% g
rt random 360. e0 o {& F, \3 B/ \, M3 L
5 w; g% I2 r5 ^fd 1
7 M; N5 V+ E4 i t5 }$ w$ Z6 L" P# H; h
]9 S1 p% F4 o: D! k
+ [5 j$ p. t0 q5 c6 ]+ p
end$ P: Q+ c# k1 q' _) R0 E
& r% }# N2 T _! q5 eto do-trust 4 ?' Q* T0 ~; G, W
set trust-ok False
' _* O% T$ M# ] P7 V! @! K0 m# u6 R! M
+ r8 `% K% Q, B4 @* Elet max-trade-times 0
6 R5 D7 ~$ ~: d" M+ q( \9 L6 rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) G. {3 j( h) @8 H
let max-trade-money 0
/ r# s8 [5 a7 ~. Hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; \. ]- a5 R9 `( Q1 u3 H( f7 Hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% ^8 F- i) h* T0 w
% }! e. ~( |2 w+ a I" @
) t7 p# j: B: c0 \0 G4 J7 N- mget-global-proportion, P5 b, T( `4 ^3 D, \
let trust-value1 o2 [! s0 V/ t, [
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)
1 i; F. k3 U- b! M* w" h( |if(trust-value > trade-trust-value) I0 k1 P L: u' D- k2 ~
[set trust-ok true]
; I, U, |/ _& x3 \* _6 U, dend0 o1 s0 u" V m3 N$ f' E4 [
' [8 ?; L2 d7 s! |& F1 ato get-global-proportion. ^. Y W7 f+ ]$ j' k# o( b% ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). r8 m' q2 N2 U) w( }) @) e
[set global-proportion 0] i# ~' `1 J( v6 D3 Q
[let i 0
9 Y( m( O2 K! f# a. z% y3 Blet sum-money 0
9 J$ l9 m7 n% g8 @5 t+ Bwhile[ i < people]6 \2 H+ {3 @# P
[2 y% M& V" Q. p% e. @! H/ ] }: T
if( length (item i
( u6 u& B4 S8 w( S[trade-record-all] of customer) > 3 )& k& a1 z2 W, A
[
& w9 i! b$ M3 r5 }4 O! d8 fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 v6 m* h* I! Q$ f2 ]" k]
6 C1 d$ k* R0 @& m3 t% _]1 t1 d- z) J: w, U
let j 0
* h: |1 G9 K# W J4 Z5 Nlet note 0
' T2 H5 U5 p3 V. A5 C; I9 [; [while[ j < people]8 q1 h/ g3 T) d0 K8 q6 K5 j( M
[
0 @3 A1 o: g& C7 t4 l+ Bif( length (item i/ k! J4 F0 n( w$ | _5 ]) c
[trade-record-all] of customer) > 3 )
! u" M% d# V0 U o& F; z7 n9 c: d% f[
; v( A! i u% a3 |ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% s/ f: D$ O/ H8 s o
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 f; G7 m& v% c2 W4 Q1 t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 t) Y. Y' j8 x0 I7 n: }# K]4 W) o2 f' J+ l8 |4 c9 A& Q
]7 C2 S' _- E/ c9 e% Z
set global-proportion note
4 D0 c5 b( O! d. n]
6 ` b( a a5 o. G/ c) jend+ J( j2 ?! b- z/ p" v7 Z3 \6 @
1 L {8 [6 w! `/ N1 j( B# G+ e3 Nto do-trade5 [9 u& F" S u4 C. q
;;这个过程实际上是给双方作出评价的过程/ ^5 |& i( [/ I, }/ W/ ~$ i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% U+ Q5 X1 J0 q- s5 M
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) V9 ]2 X/ W5 K; _set trade-record-current lput(timer) trade-record-current
- A* m- t8 x5 n9 d. ]6 r;;评价时间
2 V+ n. i$ L3 F6 S% pask myself [
0 Y% b, S, [# Uupdate-local-reputation
$ @1 P0 t0 R/ h$ Eset trade-record-current lput([local-reputation] of myself) trade-record-current
7 W3 S! l) i1 i/ ` y5 A]
' R* |( U# N# O1 G" U8 @set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. t! J4 L* i! Q" }, k/ d7 f
;;将此次交易的记录加入到trade-record-one中
% ~ R* j5 k% t, r9 T4 Dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* s1 S% U, x: }+ a1 y4 D9 O( llet note (item 2 trade-record-current ). q; r7 e; g2 v. Y) @1 M6 y
set trade-record-current, a. q& F" N9 G% D$ [
(replace-item 2 trade-record-current (item 3 trade-record-current))
8 _4 S1 q, d6 Y# A* d6 e) p! \4 Tset trade-record-current# o. K9 y3 C9 G. k
(replace-item 3 trade-record-current note)4 P+ M. S# \. p8 a6 M
- A' s9 z: R$ \0 T
7 x9 k6 Q) _4 h' R7 Y' _ask customer [* ?# Y4 I$ A/ }' v5 R+ F' H1 o: K& n
update-local-reputation& C$ Q/ w, X3 D; E6 S' v" u
set trade-record-current3 j) v+ G/ s& z7 {" E: l& _9 d
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 }3 N+ U+ F {: G0 t( n) }, `9 ^]7 i+ Z" J( m4 Q$ X" i; r& B1 Y
5 n' w, l M' p" @+ `
) b+ g. p0 H; u, h
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! b8 g5 z& N' w8 k9 C
1 H6 k! m* f" Z* `8 E0 x9 K; B+ vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 b7 H/ j( u. K
;;将此次交易的记录加入到customer的trade-record-all中% G% m6 @3 z2 w
end
+ o# I6 n* x+ F" `5 F% ^
3 H) x: \2 I: q8 S) C- Q* M3 A, jto update-local-reputation
% O, x7 w9 O* K- N7 K! I2 pset [trade-record-one-len] of myself length [trade-record-one] of myself- y# b( O5 ~2 @* ~! I0 P" a
. a- x( n- \: e" i9 e+ u+ B( l4 a- E- g
;;if [trade-record-one-len] of myself > 3
: n, u! |1 \! v$ S+ N( Supdate-neighbor-total9 ^" W0 z$ i7 l8 Q! D
;;更新邻居节点的数目,在此进行
+ {, ~0 d% ^: F" T& Ilet i 3. l8 ?0 M; m. }+ Y3 u5 u- V- a9 d
let sum-time 0% y K, s/ q6 M4 s" ~( ?+ i5 Q
while[i < [trade-record-one-len] of myself]3 t V6 e- v7 A3 v6 c4 d
[
0 w! f' b& M" T- o" Qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
m* V+ L/ R& h. U# Gset i1 {4 |) ?& ~ A# v
( i + 1)
7 M# i8 g! [) W6 A]) \6 r! F$ @" [! m/ ~, @% ]+ H
let j 3
" V# @) D" g' slet sum-money 0
* t" e6 e' A2 K% F" |) Gwhile[j < [trade-record-one-len] of myself]. K8 p1 z! ~; h& o; R' I
[0 x* j) k8 D, o7 n8 T+ i& t& y
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)
, x& @9 e; B7 N( ~* Zset j0 }0 k. L/ x# k6 V5 J9 V: C
( j + 1)% o9 ]& N7 r4 z! q( o% c
]
# a6 O, D/ {. W l3 mlet k 3! @1 \5 o$ T- G: A/ N1 \$ l
let power 07 _( L- V) T6 ?4 \+ b9 V0 Q
let local 0
/ d$ q2 ?: s* V- bwhile [k <[trade-record-one-len] of myself]7 D2 i$ P2 c2 o2 @2 |
[2 m/ R" ^; j" r0 ]9 a2 o6 [
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)
) F) i0 d+ F ?! ^ N# X+ r+ W4 `set k (k + 1)5 R% {$ _) _' d: `* j
]
+ D$ g8 K8 y- o/ Tset [local-reputation] of myself (local)
$ J( R% f% N8 W l1 Mend
: f$ p5 f1 T; A
6 l! E3 O% M4 Q+ I: X5 Hto update-neighbor-total( ^6 x! e- G# q" t. ?2 g
" U! M0 U' v) B: y' ]& g, x1 m1 c5 Y! c7 Mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 l; ^/ ]: s& t1 }0 J$ a
0 f$ `) J. n, C( S* y
# E; S( I" L* |end
3 g3 l8 G `( U6 n
1 ~( f, B* ]7 V1 v9 r, e" Mto update-credibility-ijl
" K b a ^$ j: \& B, Q" c6 i, S% q
;;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。
3 o& j+ U/ `3 ` jlet l 0. E' p* v+ h) h0 b/ k
while[ l < people ]6 d8 K% T5 ` M, _/ u8 ^+ b
;;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
) T6 @5 c! E# \, h( D# r7 v/ X[
+ x, v" A4 m6 ]- D: ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer). ?; J5 V- g% L! R* [- r& T
if (trade-record-one-j-l-len > 3)
' ~ D; v; }% C[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-one1 b* d6 W- h" R
let i 3
7 G [- v7 G7 w( e+ j" m- ylet sum-time 0 ^4 I! f% b6 T: U! F
while[i < trade-record-one-len]1 z% R* E$ u$ r# |; d8 E
[; |$ g% K1 Z9 B# b: ?
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! v- ]+ G2 p3 F O2 `set i2 `3 J: C4 B# ~* n& J% L
( i + 1)
; \, n% Q3 N" h* D' {9 Z1 V# ~& i& W]
4 J% h# t9 { H" G) Slet credibility-i-j-l 0
3 i3 C: U5 ]3 P6 W0 E2 u& [3 J# ]( z;;i评价(j对jl的评价)
' l7 a5 K* u$ _9 h- blet j 3
/ F# q1 k: O' H: w: F3 o( x9 elet k 41 m4 d! `- }. H3 x0 o1 r
while[j < trade-record-one-len]
) _. Z, L& |% b& G& N9 o( Y' N[
# h q0 ^, B5 V( d* h1 `& Vwhile [((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$ c6 W9 A% s4 l g' Z; a- w9 H8 R7 v
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)8 a" @ a* q% d8 z% x5 O
set j
& B$ [% D+ o7 F( j + 1); v0 L& ]& K: T8 U$ Q
]
5 }0 F2 p# p, K7 h3 U! D* B" Tset [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 ))" q5 }8 P- I6 j- _' Z& G% N5 U
9 f k! B' X3 O+ f( s+ E; F6 U' W& M
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: z5 Y- ?# W8 {! p+ X& V;;及时更新i对l的评价质量的评价3 i7 ?! C) w2 L$ D3 h& U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' _$ E6 X" j$ b) H6 N/ Z# Gset l (l + 1)! c' M- u% |0 V; Q5 {! Q5 L
]
. K0 F v! k/ E) _8 ]. Uend* h: K: q9 h# ~# c" |/ S9 O
- ], I V# o& c$ f d6 y
to update-credibility-list
4 U1 e0 \0 Y2 W4 q w L: D# }3 Vlet i 0
+ \* F/ h8 f4 v1 e+ [5 ewhile[i < people]
* w9 G+ X* P% U" J7 S1 h[% @! z; d9 \7 D
let j 0+ {' Q6 i: D5 b( R
let note 0
' R- O* j( u2 M! xlet k 0
# b9 z' q# ?" C$ H* Z2 B: d: a: ?;;计作出过评价的邻居节点的数目1 e/ {0 S$ P l2 i/ \( D: T
while[j < people]
7 W7 u$ i4 S' `[
) x: x e) A% R' {if (item j( [credibility] of turtle (i + 1)) != -1)
4 P' h; u$ c) F;;判断是否给本turtle的评价质量做出过评价的节点( C+ a0 ^3 A; j y$ q. I$ {! J1 [
[set note (note + item j ([credibility]of turtle (i + 1)))
+ d& F+ C# z3 l+ t, l;;*(exp (-(people - 2)))/(people - 2))]
7 |8 B9 ~, j+ Y1 L! lset k (k + 1)
: x" z) K3 m: {/ }" u]
5 ^! R8 F* z2 `8 @set j (j + 1)
. b# O3 i: R6 w8 k8 _0 l]* M" |; R7 x; o4 O, G* F
set note (note *(exp (- (1 / k)))/ k)4 y. d/ E- i1 d* ~5 \
set credibility-list (replace-item i credibility-list note)
1 o+ v0 |' g# Bset i (i + 1)9 [2 o/ u7 @& k: z6 t' s) B
]
# u7 v% v) ^& O+ Z* t9 @& `# }end8 Y! e, f2 C' i7 }
4 L+ u Y) r( lto update-global-reputation-list
% a/ L" c0 n5 f |! U8 W Alet j 0; _3 G) E# E1 y/ k* R
while[j < people]4 o. ^& ^" U( K1 h; |/ ~4 t" c2 g
[
& U! q7 D, v4 C: C7 N+ z9 I, Z mlet new 0
% S5 I8 s/ Q4 s;;暂存新的一个全局声誉/ v% y% ^" m* N5 \1 ]5 c
let i 0
- f3 }0 L# \) A, Z& Alet sum-money 00 A6 m4 k D! {: B! N( T; ~
let credibility-money 0
# V: g$ o1 \5 Z8 @' m9 L8 V/ o& Lwhile [i < people]1 O; U Q) i4 ^/ `
[
: D2 m* r% w- v' ^1 Vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ Q6 H8 q( S7 N( aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ B1 J$ Z% `4 D. R. u
set i (i + 1)
3 u. U( X% }* y5 W; Z]0 v7 E0 d: V6 D2 n
let k 0
, d( h, g7 N8 U4 X/ D7 Ilet new1 0
- J' D, Q9 ~8 i) t" Cwhile [k < people]% L$ `! b9 _7 d, H( v/ g
[
7 z0 v! T1 \4 @6 K: i8 _% bset 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( P5 p* ]1 l/ R6 wset k (k + 1)
& u- B' Y# e- ^0 S/ y' W]5 J8 ?. H9 K; o/ x$ y( e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 x. J( Y3 ~/ V' F2 V3 ]set global-reputation-list (replace-item j global-reputation-list new)
; k ]. v& V2 h% U/ v' [) Wset j (j + 1). F6 t1 H1 b& W' v4 K: `
]
0 x( X2 q& O# J; jend( k6 S% a. Z5 p8 m
- f; M0 @' ~: ~# y4 M+ Y& P$ _( q# c; F2 v0 y3 b% G% Q
9 E# W k: b P) s( x" zto get-color5 x, z( }5 ~" ?' x+ `
L g+ b( Z2 `; x' q. H
set color blue
3 y$ h u# z) U$ Yend3 @2 @# M o8 `3 p$ R/ A2 J
+ |% I$ m5 N9 L1 W, I% Vto poll-class3 N4 |' B' ?: ~& n
end
3 P3 D! o# h7 C! T& d. G# \9 X3 ]( b
to setup-plot1/ j! [6 o! w$ C3 \
* O: Z5 `8 O% `0 l6 e% Sset-current-plot "Trends-of-Local-reputation"
' |& t* l: i; J$ n
, F. e6 B8 s6 _4 Y' i' Tset-plot-x-range 0 xmax
- Q" J" a1 q0 L; r( Y
4 B0 s6 _* X1 y" nset-plot-y-range 0.0 ymax
& n2 ^( |* q2 A$ `end2 K. [0 H+ R, Q! k( C- O! B: w
3 s( u: |4 L, O- lto setup-plot2
3 S# ^3 o b; R8 S E+ ^( \4 e# c5 F% A, C
set-current-plot "Trends-of-global-reputation"
& Q' m+ L- s: ^3 }9 m6 L5 ~5 d4 q$ i: E! f- S4 O1 w
set-plot-x-range 0 xmax
4 C8 ~, z" L6 d; [9 `+ V( J7 L1 p% Q) R9 g$ D
set-plot-y-range 0.0 ymax- e8 g/ r4 s: c
end
1 M% O" b- D8 ]6 h z$ w3 l4 L. O# Q* S: c
to setup-plot3
. f& C, H% n% [1 o7 {- k, z
- J# N! R! ^, j2 X& j1 uset-current-plot "Trends-of-credibility"
' y7 C9 w9 f6 J& {8 Y
A, \2 s7 L* J2 M3 _3 L( sset-plot-x-range 0 xmax
; p& M+ u& b$ k | _4 }: q- q& o/ b6 w& E7 ~8 N1 @+ k6 @- m9 o% d
set-plot-y-range 0.0 ymax
* x5 E. _# g! f! |# w0 V# \end
/ H6 w1 ]( n( T& h
6 s- p! s R, k l% G hto do-plots! S9 z) o+ _+ q4 X% _. o2 k) A
set-current-plot "Trends-of-Local-reputation"2 h! z c) D9 S
set-current-plot-pen "Honest service"' C# E& |8 {0 |1 K
end
& d$ C( o- ?) S8 N9 H3 R) u2 {' M, f) o/ Q' I; `) |( L% \7 @9 L
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|