|
|

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
4 T# I' B. F J- I) tglobals[
' ^- l, h! k/ s7 f5 p7 P; }xmax
- Y; ~) n2 s: t. y1 k& z) |% Iymax
- V% G5 w n! x k! vglobal-reputation-list
4 a- M) Q2 Y4 W
6 w% F3 ^. F6 b' @9 E( E1 b. X;;每一个turtle的全局声誉都存在此LIST中
2 y( i+ U& c5 S, {- Mcredibility-list
; O/ B9 N$ z: Y$ p;;每一个turtle的评价可信度
3 W1 b/ O$ y4 j4 }# Y+ ehonest-service
' h' ?8 A: k5 Q& r; g; v) R2 f& l# `unhonest-service4 j5 g, c% H8 V1 j! p( |; e
oscillation4 J8 |7 \# X6 a3 @+ `7 B) x% U
rand-dynamic& S$ `! U2 c! M! [2 `4 p
]0 T5 K% L* y* d. }2 |* q2 N7 n/ o
" K! R8 R' \: R8 e4 O( A
turtles-own[
- R6 C: V& M, q! h8 V9 Htrade-record-all
E4 X n' ~& [9 L;;a list of lists,由trade-record-one组成$ Y$ v- ^ J. E, i+ K5 F- Z
trade-record-one
. s) L5 ?3 V8 g4 O% H; N$ O;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, ^- D0 o8 R% C8 z$ o- z. C* E+ m( A6 F% ]# B- W' J* o
;;[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]]
9 q9 T0 W, Q- ctrade-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! O( z( h6 ^( e7 L
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- S! z' o. N# D/ D$ e! }/ E
neighbor-total
. _: \8 A9 u- S' [0 W- H* n" W5 Z;;记录该turtle的邻居节点的数目
. C* }2 D4 ^. v j/ z, J1 Utrade-time
* E& G: L! e& O# N* a2 I: E9 C;;当前发生交易的turtle的交易时间
8 e; f6 t$ Q, b, V$ d, ^4 H; ^appraise-give
2 Y0 i" n* E( z1 @, N" x& O;;当前发生交易时给出的评价
( O) H; E/ U- _' @7 d+ A9 Xappraise-receive
4 n# ?% h4 w, f;;当前发生交易时收到的评价
: G5 p7 k6 G, q E' P/ ~7 N$ f/ vappraise-time; S8 ~# d% e) n* X9 A9 v9 y# O
;;当前发生交易时的评价时间
2 ^ z4 d7 @ U( o n9 z1 Alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉; H+ M& f# F1 Q+ c4 l* Y- q2 y
trade-times-total
) {# B3 y/ w$ u;;与当前turtle的交易总次数" o; ]; r! ?, X5 H# Y: ~
trade-money-total0 J4 _0 f# n3 X" s* o+ E. z
;;与当前turtle的交易总金额2 Q: p3 J6 i% B6 Y0 _8 Q
local-reputation
) o( }6 ~/ F5 z8 }6 K+ q& _) Zglobal-reputation
) S/ [2 W; e9 f7 ucredibility
* f: K7 Y% P% N5 P;;评价可信度,每次交易后都需要更新; ]& f2 E3 @; T4 \$ x
credibility-all$ `. `. w* }! T. R3 ]6 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0 h, K5 J& w4 w) E: Z2 Y# Z4 U
: `% f; {7 M; M: D
;;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* _- J6 U+ |+ c- w
credibility-one4 y& z% n8 Z9 ^/ I
;;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, C! l2 l& ] I# a
global-proportion
/ r8 c7 }, c* T0 y0 kcustomer, M+ [, j5 \6 z) {+ C0 q; V
customer-no
: _. }+ x- g3 T8 f- I5 Mtrust-ok' B9 W8 ]$ e5 L) W6 s4 F$ L1 A
trade-record-one-len;;trade-record-one的长度6 v, V1 G) U2 }$ }: Z% ?
]
2 w0 n" @$ L" R" y) h8 O% M5 T6 x# {5 W) i" M4 ~ o- E8 y/ t
;;setup procedure P' E; f8 ^* }7 |% n3 d( b' f* o4 a
% A$ w) l5 h: ^) L$ E& }
to setup$ \# k" r$ L- w8 `. l, y
# H* I& v; D" b
ca
4 X9 o' v1 y$ l: I# s& W% v, e2 U) w* l; |7 w6 b8 l
initialize-settings
' M! z, A8 B& f; ^$ A+ {
& b. T% q8 t+ U" A& @) dcrt people [setup-turtles]/ x% L0 \) \, g7 ?* {4 a1 b
' @# x4 E; H. x2 s+ Yreset-timer4 S1 p( d2 }( \/ m" \1 C$ b! A
4 f2 H( K# p/ i1 t5 X9 x5 Jpoll-class
" O9 ` V7 U: j+ K# y# d8 w" n9 D) E2 o# K- _) Y1 Y t! B
setup-plots
4 j/ _! A! _% ]3 N3 r2 a, _& U. z+ p ]- F- o4 _* g/ A
do-plots
- w% D$ y/ U. ^. g1 }+ H+ S6 j/ V# \end- ^$ ^* t. a Y5 {; J5 T
' k% O) B, I4 [: s
to initialize-settings1 O3 O, E+ R5 w! |( R! ?
- c& w# M |" N: I4 Z _1 s# Vset global-reputation-list []
% S$ g$ O p, s: C$ a9 G p# S$ v
set credibility-list n-values people [0.5], W, L2 P, u7 q2 s
' {: ~8 J. o7 M5 vset honest-service 0
% N) R0 z( |2 s! C( }8 m% N4 T8 _0 ], O! m" W5 d2 n0 I+ _
set unhonest-service 0
3 v+ s# |( v, C5 Z
; G6 R2 T4 U, F) Rset oscillation 0
2 ?/ h9 k. x9 a0 D1 p" {4 e- w2 _; A1 T
set rand-dynamic 0: |2 t" c' K2 p+ h$ V
end
: K! r/ c- D: O# l% h$ N! Y7 ]" o% c: f& r: f6 k
to setup-turtles - r5 X0 n- @4 ?/ ^* L
set shape "person"
" Q- H" _8 ?7 N! J4 r. s" Qsetxy random-xcor random-ycor
7 z. c6 B/ z7 l: G5 }1 Iset trade-record-one []# a# B( [2 e' x& y9 c- C/ G& Z1 \
+ N, b+ c0 A+ g2 o$ V9 m+ P1 c( w4 a
set trade-record-all n-values people [(list (? + 1) 0 0)]
/ v9 Y% j8 o7 y; o) J( s3 w; [" ?+ j
set trade-record-current []
2 I% K& ~ u) Q. V! u- R3 gset credibility-receive []
: z5 T3 N6 f$ C- ]set local-reputation 0.5
# p* B1 _; x. o/ I" qset neighbor-total 0
! y( `7 x2 M( C2 S8 Tset trade-times-total 0# [0 E( c& c% d$ r
set trade-money-total 0
1 L" g9 h, h( j4 M5 `9 ?1 k* |set customer nobody
! D; x0 W9 W; {7 P. L1 |1 Zset credibility-all n-values people [creat-credibility]' p1 }: b: [8 d2 Z9 U! m" o* Y/ z
set credibility n-values people [-1]" Y, }8 j7 ^3 g7 t3 S( }
get-color
( e4 W0 y$ \$ S7 P0 s( B8 B& v) J( x7 ]" L; h, J
end* b9 @" {0 C- I$ T" V
. |+ t2 N1 f) W7 a2 \: {/ [/ l
to-report creat-credibility3 e& w2 B% C* o
report n-values people [0.5]
; h0 V# X# s2 i( qend5 e+ V' N' ~# _! {$ g1 J
: ~1 O" t7 _1 s7 v6 Y; z# R
to setup-plots# d7 O+ C( {# G/ P
0 J1 Z9 `7 l6 M; p
set xmax 30
- s- |. i3 q8 n* T
; {3 o8 ]9 j: W K9 }/ y5 rset ymax 1.03 O/ d* h% b- k
# K2 a0 V7 k( P9 J3 v
clear-all-plots
# K- K$ ?+ C. A: B& T2 ?
% ?) X& m# c( @- msetup-plot1
5 @% X( ]9 ^! X: ?4 l
1 W7 U' A7 @$ ]. j4 f! f) bsetup-plot2
! H/ R/ ^5 F. v- [
- v r G& [2 @4 p. G# c5 Rsetup-plot3. S* H0 o1 Z) _! t- d9 i
end! d1 {2 N j: F" C8 b: D
( Q* K4 `- H9 K1 O
;;run time procedures& r3 a/ K+ G7 u
8 Y4 @% ~+ q" s: g5 j& tto go: A: l9 w& V- I6 ~. c6 n
. H) b# c! w/ F' _# m: u
ask turtles [do-business]2 s# H# i' i5 {/ F" I, B
end
3 l7 b" _( |6 m0 y
9 ~2 Y& m$ I& J( fto do-business
5 \4 c4 p% O4 J- B" d- r2 N/ d+ N
. E+ c! l4 M2 n+ D- r
rt random 360
: S# i5 D8 D2 m
3 {1 `/ p% K' h7 M& D% vfd 1
" C8 B9 t+ z" o/ \. M4 c( s' V" U( w* |
ifelse(other turtles-here != nobody)[
; t$ [% o. Y2 w$ _
& M* r/ R5 L& E9 E' e$ cset customer one-of other turtles-here3 G. `; s" U: |/ `
: d3 E( j! q8 D" h;; set [customer] of customer myself N3 ^: ?% R9 E5 o7 b
4 ~9 Z( \2 O+ t* Dset [trade-record-one] of self item (([who] of customer) - 1)
# m3 x) h7 ]- F* j) N# D, t. {[trade-record-all]of self
8 ^4 Q$ P. m% E% d( g( [ O/ q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ e9 W( m$ v0 D s. g8 ]7 Y2 G. ?; R2 s( h
set [trade-record-one] of customer item (([who] of self) - 1)
- @$ d1 d) R2 l! r' d[trade-record-all]of customer
; k; j1 K4 ?& V7 y$ O* z7 n$ Y4 Y8 k
set [trade-record-one-len] of self length [trade-record-one] of self- d1 P1 \, B$ C N. }, K8 b
- I- M1 e5 {. D; m1 j7 K
set trade-record-current( list (timer) (random money-upper-limit))% P1 E2 M3 Y. f& @* Z. h
5 O* |4 y5 c- x/ }# f+ [& r
ask self [do-trust]
5 t& T B$ v, ?4 l;;先求i对j的信任度
( G" q4 t9 i2 d$ D. i+ c
^/ q- J" }$ w( a. o1 qif ([trust-ok] of self)
u. p) ^* x- w& b# z;;根据i对j的信任度来决定是否与j进行交易[1 D9 }5 F! {6 N! K3 \1 t, a4 r
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
7 u/ D$ {0 |, O1 S$ v4 i
$ p; k: ~0 g5 w2 y9 A/ {$ l, c5 A[: \2 D+ a; U+ Z4 Q$ ]' B& d. [
& b2 k. }! V9 X* b" ^3 f$ Xdo-trade! X$ x% ~# J. y1 I/ z& [9 h8 w2 A
" q& A' E5 X$ V* Z
update-credibility-ijl( Y# k4 x d/ f) ~3 b2 \8 V
& N p% d7 \" g; q, \/ i3 l& Aupdate-credibility-list8 E5 _2 u% Y8 D8 X/ W
4 J6 H# b0 J k; ~5 l: S# }- c
9 ]" f2 q. D1 A: w1 D
update-global-reputation-list6 l/ W$ _7 F2 g+ s8 E0 F5 [
7 z# j! r' y/ ]1 z) ]8 S: _6 ~
poll-class
# L) C8 }6 j- w4 [- X, w5 O5 S6 u0 F( _% Y
get-color
5 i# R U" L3 q+ b4 Q; E: I" {
) ^- n3 u2 T( W+ g- O4 f]]0 I$ e: Y: P2 W2 A
5 x8 F' V. ], x8 x
;;如果所得的信任度满足条件,则进行交易
0 q4 ?$ A& J' r( G' I# N8 u" e- D" Y# k$ M7 x' o$ _0 k
[) s/ i+ z4 W4 J+ E. |
% A2 H, M1 p) E. A4 y
rt random 360
$ c3 g: s( f& G* i/ m
5 u4 s* ~6 [" xfd 1$ g; C6 [5 ^3 k3 }
q3 G0 q5 A7 P* s' J2 R6 Z
]1 T' q2 f* t6 U; x8 S9 H m# [8 [
( Z. h% \3 ~& j6 t! O. W* p+ N
end
1 \0 Y* ~( {* a0 b& z8 y
1 z3 E7 d" {4 Q% ^7 Cto do-trust
: b- B' z; E% C, O Aset trust-ok False
% S e# E; Z: l4 l# a! X$ e0 s b' }/ o/ t9 p. f5 F
' ?* z7 d* Q, R( @9 r
let max-trade-times 00 V7 V1 y9 Q S
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 X( x) d8 k/ o2 }let max-trade-money 0
7 X0 d7 i. [2 Y6 r1 _! Vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# [! K% c; ~% ]: O* P w: G7 w
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 t$ N1 S1 h! v% e" U$ g4 O" z6 H `6 B. ^
' f x9 v4 J- Rget-global-proportion
" R+ |+ X3 W4 Hlet trust-value6 M3 D3 L% y) ^- W) ?( D' r
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 b5 }2 U# H R, q, E
if(trust-value > trade-trust-value)
$ Y+ {/ E" K& y- h' b[set trust-ok true]
1 Z" N, P# c P8 g' w0 Yend9 g8 m! h! w' H% w: L. W
; w8 a. L+ f( X) g' wto get-global-proportion" s) T4 w" ~0 r7 N) m/ c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 \+ `. I. M) E5 i+ r
[set global-proportion 0]" [ Z. K; ]9 A* v
[let i 0
/ j9 y4 Z/ }: A+ h" Y+ x, Z. llet sum-money 0& O' F! n q& ^8 n/ G) C- e) ?
while[ i < people]
: {; d8 e: g8 g5 N% k, N[
' X0 L0 G: R3 k; _if( length (item i
. `0 z: w5 n5 u- j- E[trade-record-all] of customer) > 3 )
8 h' d; p% E2 t& j1 g" F[! P: I! a5 S* N8 ^* i- Y; z3 `7 M% j
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 Q$ [% n) y4 Y. Y! Q! S6 R7 ?]8 X0 R, t! M! r* O% k
]9 R. ? @" z! J3 B9 ^
let j 0
$ @9 o$ m2 w) z+ o9 Q ulet note 0% I5 ?& w) m3 c% d$ S0 U. `, L7 K& {
while[ j < people]
' i( f0 m9 m0 y1 R6 w. B: q[5 k" o6 G+ J n/ D
if( length (item i
6 f1 O, o1 D m- s: v* l" l3 E[trade-record-all] of customer) > 3 )
S0 s- x* U* [, x6 X9 ?& c[% u. H( J5 H; Z$ U! m- B r9 D
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# T- v. F* m6 e, o+ { E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) }/ n& r; S0 [& _" C- A% n6 \$ m0 X[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 Q9 I4 o8 n! K8 r, F: Y6 G w# P( i
]/ L/ b2 s( ^) P, K9 h
]
+ q1 I; z) Z4 u' j6 E: ?0 R9 Vset global-proportion note
2 ?; |4 @, E+ @* o9 R]$ Q" ]7 z6 A. x9 ~
end
+ S# `; D4 ^( O/ a
- T7 F/ X( Q3 L2 o. Y2 Qto do-trade4 {! E# P, G( o2 {% U
;;这个过程实际上是给双方作出评价的过程& G; U6 B; f0 f8 I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# n2 s% Q5 r: v7 R) x' mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 S5 B x$ ]9 Xset trade-record-current lput(timer) trade-record-current
6 }( |% {. U' ~" D;;评价时间& Q9 K( x0 t: Q8 C
ask myself [# F3 } L" F; g, Y0 y
update-local-reputation
$ ~8 F# G) g9 ]9 E4 e7 F+ Eset trade-record-current lput([local-reputation] of myself) trade-record-current
& g( Q9 U) N6 k2 G# v7 D]
$ D& N" u" B+ f' `- Cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* ]3 [, j" I4 a/ N
;;将此次交易的记录加入到trade-record-one中$ q, c* B+ O( L2 Z2 e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ q$ u |& B$ F, w6 C
let note (item 2 trade-record-current ) e) b, q) p/ j* d
set trade-record-current2 X% f: e9 W: H- \/ k; s
(replace-item 2 trade-record-current (item 3 trade-record-current))* o4 b2 C6 c4 B1 Y- j
set trade-record-current" O2 e$ Z- U9 q! n+ O" G0 q6 s
(replace-item 3 trade-record-current note)
4 ?8 I& E* }! I4 E, n5 K
; C8 o3 _. b: \ g* ^
' u7 F: I# M g3 c0 @# Q' ^ask customer [6 E1 K# E; Y# s+ t0 M4 s- A& p' C
update-local-reputation
8 l: ?! V2 {/ N. {, Z" dset trade-record-current e8 E2 f! S1 g+ K; [1 @
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + I1 Q8 O2 j. S9 }: \- A
]
" c. x: N9 ~) b6 I6 c# \) w) I
! o) }. n4 i# i2 b3 c( n% Z8 i5 j+ V$ H$ ?) L0 H. U
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
U/ H! U/ k6 z7 G/ _6 i
, U$ M2 ~. ^3 W& A! R- sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); {, x! x9 Q: p! Q
;;将此次交易的记录加入到customer的trade-record-all中8 g4 {' W8 I8 R
end
' @/ x' ?& Y/ H* V/ c% M" a0 C! C; H' c5 r0 J/ p0 }( K% [
to update-local-reputation3 V9 t6 `2 [/ v- x* e: S3 D) ]
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 C2 z; n% ?: j" b1 N/ Z
3 {4 \ \8 e: K9 Z: m4 j. B" U! e8 [- B3 J1 C5 X! E, ^( O9 l
;;if [trade-record-one-len] of myself > 3 # o: S1 \. t" |3 S
update-neighbor-total
# Y3 Z- N9 f/ y) X/ q" f5 p;;更新邻居节点的数目,在此进行/ e- R! d1 P) e; a
let i 3
, A! J7 A& r0 plet sum-time 0
! Q) J# q8 w: T6 l: Ewhile[i < [trade-record-one-len] of myself]
( } A/ `$ I) F6 Q[
8 }" p" x# ?1 E3 U) M" Uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 X& P) ?7 }; U0 G3 @) r
set i
- t* r/ H3 [% B6 J" B( i + 1)
; o6 x/ G0 p+ Y1 }7 s5 { B# V]
8 x( l# K9 q: ~8 O- f2 g7 F" I3 N# Blet j 3
2 E4 G' ]1 P! n0 ?& U' x* ilet sum-money 0# O& {* Q$ w! ~7 g7 Z+ v
while[j < [trade-record-one-len] of myself]
! x; u; Q9 d2 M y. K5 J[
0 F) G/ {1 e* w$ b2 e tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
v8 }* M8 o* W% ]% Iset j* j% [) ~ p3 L4 R! B6 i
( j + 1). X1 s x6 @2 F$ I# M* {9 ?
]
0 |: {! P( O/ d" Ilet k 32 @/ d) o4 e" B% v+ Y! M; U$ a
let power 0
7 \9 h' i3 \2 g6 Y; p0 t; c8 q7 Zlet local 0
2 W3 ~) A2 l& c1 o e" G2 vwhile [k <[trade-record-one-len] of myself]* \2 u" ~- B: g# y
[- S e8 m v$ O: c
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) ' h; D- o/ n. P0 h9 G
set k (k + 1)
8 a0 V5 m4 d, a, C! J- `! D]
1 ^$ p, D P- V8 m6 nset [local-reputation] of myself (local)) Q p/ w/ H1 l4 O. Y2 s
end
$ D( R; `# `6 k7 q6 j. \% h' [; S4 a a. Q* Q s
to update-neighbor-total
7 ^) _1 i( W$ R" m- ` E, s5 D( H9 h. {0 @0 q9 n
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% _- m' A& q8 K$ a1 }' A7 u* z; c; X2 g4 U
/ [% v/ ~ U5 X2 U) j- p" P4 \
end
& F% [: }) e; L7 w6 t+ s
& j$ c( Z% v4 v9 P }to update-credibility-ijl . B" E4 |2 s! A2 U9 g, c7 m; I
* o; L) E$ ^8 W" ^; d0 ?% E& G
;;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。6 y2 H. j2 q# Z- n' d! a
let l 0* P5 x' Z$ ?& L
while[ l < people ]
6 E i8 x+ e5 l; [0 S% l O( J;;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; L% I" N: K9 c" F. a/ v
[
- P8 [: j4 q' H" Z( H! q4 llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 a! M7 Z% S a$ r; Z3 {+ C n/ gif (trade-record-one-j-l-len > 3): `4 T# l; I" h' s9 N6 P
[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& [$ K h$ v, o8 V
let i 3( }9 }5 S) j$ B
let sum-time 0
3 C- I5 n% t: m' D# }% r! zwhile[i < trade-record-one-len]) z. ~& ?8 `5 n0 O5 X* o
[6 U. h: O* Y* m" V( U' O
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' Q9 @- t u& a, S8 V3 tset i
) n' Z8 }- B4 V1 C1 I* ?( i + 1)
$ k6 Q1 ~, I% @" Q- m]
* ~% n7 t& }- T2 _let credibility-i-j-l 0$ z4 B# s& e9 [7 \3 c$ R7 z
;;i评价(j对jl的评价)
" v, w) _1 Z! P5 Hlet j 3( O: B3 H a8 m7 m. \, s* s
let k 4
! n/ q% U( U+ O/ w9 a; U* Jwhile[j < trade-record-one-len]
6 X* {$ `9 V% B2 g! R7 u4 i[
$ G1 z/ C y+ }; E4 ?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
( I" f0 I1 K/ G: n' C0 K6 d- 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)
6 h' @( E$ b( Z6 j( T/ z# Q/ D: b; Eset j
" k8 R3 G8 X, l1 b( j + 1)
/ L$ z3 T: `0 |3 j]
- o5 @4 ^" Q4 w+ I5 x4 Jset [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 ))$ Z+ \/ P7 m Q: b$ e- m
3 A$ V% z8 y. h! [, @& F
3 W# U1 \6 x6 d9 q+ b5 |2 @& W" blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; E! R" ^0 C* q6 ];;及时更新i对l的评价质量的评价5 x1 S0 o8 ~# \" Q1 O
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 T9 D7 c3 H; V$ p8 D1 Rset l (l + 1)
2 ^& ~! ]( P6 H]1 l3 q0 @7 z3 I6 \- Q. ]
end
3 w# ^1 h ?* ]) ?; q- K, n" l( x. H& z `! S9 t( s
to update-credibility-list+ `" q- F. X- z: g$ x& }- h
let i 05 E/ `* k5 m, l+ Q$ |% c
while[i < people]
0 j1 W6 B" R* `: H[. y; E, H$ }1 q: x) T5 b
let j 0
$ n! E, X2 h7 {( H* ]- B c) Blet note 0
0 d0 @# h8 R# k; _+ klet k 0' J; p+ u0 L; m: R3 l+ ~
;;计作出过评价的邻居节点的数目4 X) p \- e( y/ x, c% `
while[j < people]" E I' W% ?# l, M
[( T$ j0 G& C" }( m
if (item j( [credibility] of turtle (i + 1)) != -1)1 E) \' |; t! @% F
;;判断是否给本turtle的评价质量做出过评价的节点
w4 `$ \9 C3 k9 Y7 d[set note (note + item j ([credibility]of turtle (i + 1)))
0 \0 D3 R2 |: d' f2 _2 |! p;;*(exp (-(people - 2)))/(people - 2))] p6 c2 Y1 }* c W
set k (k + 1)
# ^% y& }2 H8 U y5 g% p5 k]) U7 |" b0 s/ g
set j (j + 1)
+ z: q! |8 O2 O( H; \, b7 @]$ M" u$ D, W+ [+ D) m( e4 R
set note (note *(exp (- (1 / k)))/ k)
0 Q3 f5 s- z+ s& Q! |' Fset credibility-list (replace-item i credibility-list note)
; u9 H n+ f. M# ?6 }, q5 ?% ?set i (i + 1)& X) Q6 M# _5 J7 ?1 m# E
]
4 x3 w. |: O: Z, x% d9 Uend' K8 q( u3 B$ e1 u& j9 S, d
* |3 P8 k- D6 b+ }- M
to update-global-reputation-list$ E) [9 n% E9 x, z, u
let j 0
3 j2 X/ L1 p7 ^3 x1 g* nwhile[j < people]
* G( x! \. }' a# m9 L[% s2 I* M5 H2 w$ m# g; M
let new 01 g# o5 c8 x( @2 ^
;;暂存新的一个全局声誉, Z1 n% P1 g; W4 Y" E% j2 F9 e$ y
let i 06 a% R2 y" s3 g! e& X6 P
let sum-money 0# w- [" P5 h. Q% `$ j, [
let credibility-money 0
4 k/ Q$ m9 o1 ]while [i < people]
; X% F$ E9 i4 f0 Q0 a. j$ F9 |; Q[
7 d) z ]# H- M2 \2 V0 cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): D, T7 @: T2 q+ Z# l- q7 d) R
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 E& g6 t# }/ X) }1 _- _: \4 eset i (i + 1)
% G, S/ `% u; M4 T$ K6 ]! s7 L]
A$ U: q; r" wlet k 0* w, I2 X+ R! ~3 o9 O3 N" D
let new1 0
9 `& e3 v( P3 a/ g4 @( Dwhile [k < people]* c6 q7 S8 y; A1 a
[; ^- H7 i: t/ e, h
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)
0 D9 ~/ h2 z/ e; j3 L! u- K; o4 vset k (k + 1). V' b2 h0 B- T$ e4 ~5 F
]
& m; r! \0 F5 e- d0 Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / f* k- U% H3 f& s3 M9 g
set global-reputation-list (replace-item j global-reputation-list new)& F0 r- Z) [' k; c
set j (j + 1) c4 D% j' ~/ Y; Q
]
( }; x$ t2 F" X" K2 z# \* K0 A `- `end( {6 k& _3 G7 p) \, y
: s8 q) m( R) P$ t( E# t2 j4 E
8 M' C# V8 M1 o8 N8 R( ~# P* k; N# q' u% `. d+ r& e1 @# K' r& Q
to get-color+ ^0 k; A4 `4 I U- S: t6 v
5 F' [, f- [, U4 Y0 |set color blue
) H( _$ c9 g( D$ a$ r; N: U' D- lend3 i$ \" N) P1 D, `8 ]& r
8 J# K+ p8 r3 y8 l# M! u. |1 K5 ]0 V
to poll-class0 S* h4 I% @0 M
end9 V% H* v+ m3 w1 [- s) A6 ^* {! m7 R
h: B1 ?: j, h( I8 D4 Cto setup-plot1' @# S* ^- G5 l4 {+ ?
" x9 v' w$ C; S5 Tset-current-plot "Trends-of-Local-reputation"
5 ]6 _ R/ R1 x' s) l' d! M
& T2 r6 J; D' O, \4 Rset-plot-x-range 0 xmax) z' I" s2 u+ _' D. Q% h' y
) V7 w! l( l" z3 x3 Z0 n. U1 Pset-plot-y-range 0.0 ymax
% D5 B! r. {. m( U' g* e; Kend
5 `: p) E3 K. X: W$ v, j
) S; B0 X; X# P& \, ?- Q$ M" Yto setup-plot2
4 I6 P# d4 g0 I
' y5 h, E4 [7 Jset-current-plot "Trends-of-global-reputation"
/ Q" M+ Y8 ]* h: ^3 f; S/ H C
6 q. d# F1 N7 i8 j4 w6 Eset-plot-x-range 0 xmax
/ u1 X; U% a+ O9 x, K( f% P
* \; H; V4 L$ i& V5 s1 z0 b9 H! V, _. |set-plot-y-range 0.0 ymax. l8 y0 \4 y3 X5 c0 G* G" U% Z
end
) {$ |' w. c( R# Q: ~: Q
; o% C- _0 @$ w2 |8 R& U& [7 s: qto setup-plot3
1 \' C" F/ ?1 a- Z
+ J; p. x; g8 \' ?( \/ x5 Y# B8 ?set-current-plot "Trends-of-credibility"$ u; W; l. ^3 P2 ~8 c
; t |% }. j4 |8 S O& ^set-plot-x-range 0 xmax0 A4 @4 @& g% R
8 F- r3 D* x' o( ?! h7 Eset-plot-y-range 0.0 ymax
( s+ N0 P: I4 _9 O! t+ N5 w- r1 G9 T. Rend
# R4 ]; d% O" r0 m! r2 q8 F" h" v/ r7 B# u. R- M" K; J* t
to do-plots
9 S8 ~6 _" W" cset-current-plot "Trends-of-Local-reputation"8 J2 V( G) Y. n, v. B3 ]/ b
set-current-plot-pen "Honest service"+ i2 n1 S# p5 _
end6 G K1 K& ], u* j& I8 n5 @" ^ e
1 E/ p( S3 ~$ y! R( 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
|