|
|

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
: K; S# `, o7 f# wglobals[
. [2 z* m) S% C! Y1 _0 Fxmax
5 |5 g* O/ z9 E" O4 }% Vymax
! ?* d- h7 A+ X( W1 E0 e; Dglobal-reputation-list5 I( u; [9 L3 j. C1 B
7 c! O1 c6 w$ T8 s' f/ e4 K! B;;每一个turtle的全局声誉都存在此LIST中
1 i. y' A5 Q2 o# g# U0 ]+ vcredibility-list
4 q. N- _. K# B8 i;;每一个turtle的评价可信度
7 [( ^" {# _1 l' [! u9 V9 @: ^honest-service( \7 m: x/ D5 M+ A, P: i
unhonest-service* P* ]! D3 |. z: y, s- G$ Z6 F
oscillation8 {5 P( M/ j! b) g, s& {/ T
rand-dynamic) T& s/ p& H1 x4 I
]- t* [! m% g; c
/ G* {8 p7 ?1 F7 }1 Y' f
turtles-own[
7 U4 t$ }, V- q3 L1 w Mtrade-record-all
a7 @+ H/ i4 C7 S;;a list of lists,由trade-record-one组成' {+ ]/ J6 \+ R
trade-record-one
5 Y+ c. ~5 I3 L/ p3 U, X/ I6 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
8 S3 z3 v; F! w0 y/ ]) @9 f# J, D- b: C; y) H( f2 k2 I' a
;;[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]]1 I3 }) _, d+ {+ H" 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]" ]: X, \' p- j2 S
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
) G$ g( t' s5 N6 cneighbor-total
" ^: V1 Z+ v: u' _;;记录该turtle的邻居节点的数目7 L% X7 \- D' ]0 m! t* b- c
trade-time
1 _, Y# N/ u; k6 q1 v8 n: C4 } v;;当前发生交易的turtle的交易时间+ D: c! N5 R3 M
appraise-give
5 N: c- H$ r7 };;当前发生交易时给出的评价
# N) W& E. o; Y5 x# S }appraise-receive
F+ ^' {9 S9 v/ B;;当前发生交易时收到的评价- d7 ?8 j( A: L% |
appraise-time
) T0 k: H5 s! N) I( t* E& ~;;当前发生交易时的评价时间1 O0 B% C& l8 T5 B7 K/ _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 |9 M$ d0 ?5 H! {7 b4 v! Ttrade-times-total/ k9 E+ ?7 M- F, J+ h
;;与当前turtle的交易总次数
. Z, H4 r0 d* X" `7 Utrade-money-total" K- T5 Q& q" e+ G! Q1 u; {
;;与当前turtle的交易总金额$ M7 J& U$ u( e
local-reputation1 O8 ]# s- [& I
global-reputation5 _( ~3 l1 \6 T
credibility: ?/ v& d( b8 L% K0 n
;;评价可信度,每次交易后都需要更新
$ D1 G5 s5 |0 h5 I3 B- b: n1 Gcredibility-all: Q& g. I: e& H+ ?) Z* m
;;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
4 S! Q; m# A9 Y u/ Q4 V# N/ c6 E' C+ 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
$ v( M3 R! S E& ncredibility-one( M5 q- x1 ]2 `8 I2 j
;;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! E8 Q8 j& Y# R8 ~' H ~1 L
global-proportion
" ]0 n4 a* d, `4 B0 Wcustomer
4 d% p9 E Q) V' ~ Vcustomer-no7 C: \6 k5 w: U- D1 T% X
trust-ok9 F4 ~. G# @* E$ r& A2 N9 W
trade-record-one-len;;trade-record-one的长度0 _( ?3 Y/ h! G* J) y1 p3 s
]
& |' Z+ U) l( d
$ o# {4 L: U4 g% A. f' C1 N;;setup procedure
( C* s E6 r0 x8 T4 k
! s/ K. ~- @8 _7 P+ kto setup" B- g6 R& S8 F! S' \' [; w" v9 j
/ V, }3 Z' J# C8 O! F% lca
6 @0 c4 B0 H( J! h7 r
( k. j! g. Y m/ `6 l9 P7 jinitialize-settings* _( D' k9 O6 w$ H& i
# @6 o$ C" b- E2 Q# G5 I' @) scrt people [setup-turtles]
3 j) x8 e2 m$ @* k1 b' h, J, w1 n. k
reset-timer+ m8 R- e# _$ A1 Y$ m" h
& |$ ~) f8 M1 L! ?0 M# l3 Vpoll-class
2 d7 F2 V6 w, y( i+ o% z9 [8 n6 [* d
setup-plots- b* J' W% s H4 R) @1 ^
4 j+ [1 `, `. n6 d6 L Hdo-plots9 g8 |' X" ~3 A6 T; J9 ^* B
end
& [. F* _$ h0 b2 E) k0 U! G! r: x4 X7 G, h/ @% [
to initialize-settings' P% s$ k& }. N3 b# N1 x
+ p. R! }& S% k- y. z- u
set global-reputation-list []
( u$ E4 b3 v; o/ B8 ~: F# A
: ~ T4 A% o. f! k+ a$ s& lset credibility-list n-values people [0.5]" r F5 ]( ~* D& ]' h
, p- E- E; {6 E/ g% ~
set honest-service 02 Y2 [" h5 R7 x% n) R
3 V6 g( e d; w# U
set unhonest-service 0
( v1 m) _% H( r: g/ g/ ~+ h6 H, _7 y( R: i4 M0 l
set oscillation 0
7 X- j( J( B( ~8 r7 Y! a0 k* r6 |
8 l, a% Q1 n& c1 Q- Oset rand-dynamic 0$ ?7 a5 e, C5 l! y
end
$ G/ r- O8 |% a+ ]' W6 e3 U' t+ h9 d
to setup-turtles . ] P* t4 |5 u0 b
set shape "person"; \. V) w$ v3 M; q! U+ _
setxy random-xcor random-ycor
; d* S# H9 `( |7 j. F# Oset trade-record-one []( w8 I. l2 e# k$ d+ @3 O
/ ~, _. } h4 d- w
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 V) S+ |( U5 i2 b
5 Y+ Y) e) c3 V- `" m: s* X! qset trade-record-current []
3 D2 M" T& s# P8 p' p: \set credibility-receive []
3 Q) z& l# } c' @: V5 g. N" gset local-reputation 0.5, n8 c2 Y5 P- ?6 k7 j& N* W2 Y
set neighbor-total 0
2 z2 Y- L9 p. t" ~( ]! m: nset trade-times-total 0
2 w8 N# T& H8 a zset trade-money-total 0) U, i# U2 h' c9 W% H
set customer nobody+ J3 G# T7 G. Q
set credibility-all n-values people [creat-credibility]6 B# i; p) f0 ]2 f6 U# \8 ~
set credibility n-values people [-1]
) T+ I' V, a; j/ g! Cget-color# G5 i; r/ s3 U) z( w1 C1 V! ]
' B% a$ o* [: q; E1 ^3 ^9 ~end
# Z& U# n) V* r4 B8 s3 O" Y' @9 \8 w1 ?- Z- y
to-report creat-credibility% n6 `6 e* Z- Y
report n-values people [0.5]( a7 S' k! o7 A& Y& g4 @7 N
end
5 _ e) C- y% n) e8 r
, t5 } ?5 V4 S3 p1 pto setup-plots
9 o6 L; s6 s: O
1 {, v2 A. X6 {" zset xmax 30
' \9 ?5 V! [& y8 c5 n/ T8 v" E: t; o J' x
set ymax 1.0. O6 w; ~" y$ s! k: C5 P; }. ~3 \
% t0 L* q9 u: J5 `1 u& ^ ]/ G2 r
clear-all-plots/ C. U7 V0 ~- w Q+ w9 N
' Y- ]% j0 h! r- r4 a, h# X$ fsetup-plot11 T. m! p7 d3 U
g8 Q$ e; r8 p. [+ j8 j0 T: W
setup-plot2
1 \$ g( n4 u% Z
! T; v# Y, o7 s; ^setup-plot3
C0 K _- i' R! |" v$ Iend+ e& L8 }$ ~/ @( a/ Q
" t$ b2 T2 D# ?8 E! I% i4 [;;run time procedures
: K& W d! k4 B/ d: _/ H" d* x* o- U& X! Y0 F N% ]
to go' k) G$ k8 o; C5 d9 B: t
# @$ s3 s" b; O/ o- e! S; o
ask turtles [do-business]" T% y2 M+ B- k* g0 p, [- J N
end
# H! K6 B7 ~/ ]9 J; s( A/ K& J) \8 c% f& n# z$ V1 B+ T
to do-business / F- K" G! G+ x4 B7 ]( _- @$ d$ w
6 B7 N3 J- Z/ J ~; D6 q+ r$ q. e* p
+ d$ \4 _4 u+ L. S/ Nrt random 360$ l2 i4 d6 e* s1 ?. |! k
2 ~: W8 a# I. L1 s
fd 16 E1 N% n0 N* F6 r" D; v
" ?+ e2 P# b. q" ^/ p" O' D4 L8 w7 v
ifelse(other turtles-here != nobody)[
' @* M, l8 G( N1 s/ H, ^/ E
0 B `" {1 g, M1 b6 S9 Zset customer one-of other turtles-here( R; ]& {& F6 x% c: c; u
+ j$ v% m$ G' a8 K, V0 W" \;; set [customer] of customer myself
9 R! p5 ]: S# Y% s M0 n e& I- D
. j0 G4 j! t9 A& H. dset [trade-record-one] of self item (([who] of customer) - 1)3 }5 J8 G: d, k" \2 C, _. f; a. K
[trade-record-all]of self2 ^. l4 Q! ^: r! {
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) `0 a( D& E8 b# ^, h8 G
9 i( N# m% y2 E0 c1 [3 vset [trade-record-one] of customer item (([who] of self) - 1)3 j! \2 ?( b5 P
[trade-record-all]of customer
3 _7 K, S1 o% t A8 }- a, W
6 e5 |, P q( @( a: {5 s8 C- wset [trade-record-one-len] of self length [trade-record-one] of self
/ L( N) w# Q: g! a" W2 V. l% v' d. R
8 C( W2 k- `+ A+ h0 Pset trade-record-current( list (timer) (random money-upper-limit))0 \# M4 `- O) R4 m. A% ?, n
6 c6 _: R: G$ a" e: Q8 ?9 M
ask self [do-trust]2 G; G' x0 ~, i0 @2 b2 z4 Q
;;先求i对j的信任度 L8 V8 ^+ L: _, C" h u
7 Y3 J$ Y0 z* E4 r& r, ~# kif ([trust-ok] of self)& A/ h" C8 D" S
;;根据i对j的信任度来决定是否与j进行交易[& M2 [0 A: r5 h: n5 q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ K! G: ^: k- s- R$ U& ^
& ?4 _8 Y. e# J5 z
[8 F# d/ Z& j; K1 M* l5 q( X
6 C+ y" @1 p- F1 B" A/ C5 ]do-trade* ~5 C# e7 @" c& e# z0 _3 Z( J- D( @
% V! o) f; a) Pupdate-credibility-ijl/ S( v8 B3 T; ?2 u- ~# `6 |3 r
5 s: g6 D2 K; Z& {) q$ H7 h6 _! B
update-credibility-list
9 E0 w' \8 u9 G7 l1 d/ ~! j, U |) z9 c: H/ `8 V% o
7 {) ^1 u! k& F
update-global-reputation-list
5 J" ~$ `- q i! d# ?0 G- Y( C0 Y1 g1 E5 e+ @( n
poll-class
* ~' e+ c8 |% J" V7 h- r; Z2 I- b6 D+ c8 d( r5 T
get-color) n, ?+ m: H+ I& K
9 W) k2 n% K' G" b0 y. v
]]0 H4 K8 P4 w0 V' K3 ^, k
# c7 w% u7 P$ r* y1 f' K! D) R& O
;;如果所得的信任度满足条件,则进行交易, }# U3 m$ H$ O* T ]7 V4 e
5 s" r9 T$ M2 I+ F- f9 B0 U: Y[9 ?, C2 B7 ]8 Y; M ?" v
" `5 H* V5 S2 n" trt random 360
8 |8 c( B) j( C7 S% q& `& a7 a
& l% _. W& {5 _fd 1
; W, a7 S J( ]' O6 U) G2 s
# e8 P3 g! q+ a8 M8 c$ o \% ~6 T]
+ d( l1 l9 |8 i2 n' @' U% X y+ E/ h/ c; \0 |
end
7 ]7 X, G& r3 D8 q; D
! H. O! K2 |, t! \' oto do-trust # f- d1 `) ^; O# u, C+ y
set trust-ok False6 Y3 L+ |$ n' \) u
0 Y2 l1 Z1 N) X0 y3 [
6 Q1 [# j* j& [, X9 u4 _let max-trade-times 0& C" D% Y& Y- o# V8 n
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" Y1 ^9 D, Z2 u/ R! jlet max-trade-money 09 m( @/ K3 J! V' G9 G9 C! E8 L- D, E% T
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 Q" |: ]: Z! Y: F- c( _, ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" u- o% p" b0 n, q0 |
$ M8 Q: {, G! P' p! E* {
$ U3 w9 X# N, t8 C( J5 j% @5 Uget-global-proportion
9 F0 G/ Y0 O5 Z5 Z- T3 U: C9 ^let trust-value
5 U3 E6 q- L4 W/ T( tlocal-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 F3 v8 ^0 E$ B. u, eif(trust-value > trade-trust-value)" _" F+ y8 g0 H- I/ b
[set trust-ok true]: s9 |1 y) I* ^) e1 O' A
end
- Y. [1 M8 c0 Q/ U3 d @- N9 Z- \& {* ~
to get-global-proportion
3 G2 ?) F2 T; }, Y0 p0 ~ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) y8 q. \6 `; _: ~[set global-proportion 0]
7 q- V& S6 ]' b2 r5 v[let i 0" { G, b' R0 n. Q, s& u" d
let sum-money 0) Z) Z7 |$ `* q6 L: H
while[ i < people]/ e( ~/ E/ e0 s# O+ x8 t
[
/ ^$ L! p6 I* r- a- Z+ ^+ m) p! v% Mif( length (item i3 R# `- [# q- C1 L/ r7 A2 i# y
[trade-record-all] of customer) > 3 ). z ?5 J- g( a" _6 j
[
( C8 d% {% }" Q7 [& ~set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 f4 @- o7 q) W z2 M
]1 r2 O/ s# d* X6 Z4 {; @6 g* h
]: l; b$ u' G O
let j 0% }6 M" W' a7 D- q3 r
let note 0
! V9 J, U# W6 D: q5 H) U F- Hwhile[ j < people]
2 `$ i0 S; w8 E, O) s[$ J1 `- v5 p1 ~5 @* J3 }
if( length (item i
" Q. S' ]9 ], _0 E: V! d# u; X8 i[trade-record-all] of customer) > 3 )
E8 e8 C# l) M4 k& R[
! J! S0 m8 N) V, Y) aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& A( a" S; h& t2 u0 _3 ^5 m* z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 c9 i$ } m. ^/ W
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] J9 }: \5 a* ^1 S" {
]
: d- S5 h' F' U9 ~]
* P9 |' e* w7 Q* P$ ]9 C/ pset global-proportion note
. |+ B: v- u X- N3 x; K2 K]/ J, I8 `8 \; O/ f
end
2 l5 d0 a# Y& V9 f# h1 ?% `& ]) h- _( X9 x0 q
to do-trade
# p* g6 X. g! V! D) |;;这个过程实际上是给双方作出评价的过程# z, e; ~. q3 |, L/ n1 n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
" X# _4 z/ W9 g6 X/ Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 G4 L" R" i$ }
set trade-record-current lput(timer) trade-record-current4 b+ t4 x. X5 P3 l. R4 G4 w6 O
;;评价时间9 U) T; J2 i8 G8 c* Z0 T4 m
ask myself [: k _5 ?% i$ N" V" v4 p$ b& l
update-local-reputation
: z4 m& _7 v: C7 s" aset trade-record-current lput([local-reputation] of myself) trade-record-current
9 T! i+ `) X, i8 a/ t3 L]
6 z. F$ P5 F/ O# z+ s5 Dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* z8 O: A' O! x. f: @9 `6 \
;;将此次交易的记录加入到trade-record-one中
, l7 d% _$ D" f1 w6 a9 h( W0 I+ Iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). {5 g2 m% P( X/ O
let note (item 2 trade-record-current )
$ i* F0 ?2 l. I" o( Cset trade-record-current5 B. @/ a4 ^' V2 X& u8 B6 v
(replace-item 2 trade-record-current (item 3 trade-record-current))
7 u+ T, f, h c* f' qset trade-record-current
9 U0 B* @2 V- e. G" i/ Z) D(replace-item 3 trade-record-current note)
# a, O2 }) a2 M: w& B' Q
+ k7 `' b6 v% F6 Z% X) B; Q& m/ }/ Y( P( r2 m, g% Z8 w
ask customer [: Q; }: Z' C9 W5 C
update-local-reputation+ \6 B( u2 G9 W' G- {
set trade-record-current
9 _, I$ B0 \# n4 D) U& g(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . _& k+ `8 K% i5 B
]
6 K" c9 g, p; k% c2 S+ i i3 ~3 r3 c- z: m" M! ]
: o6 W5 D# [# P( ]
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 u0 d3 R- K+ Y# X# U+ n$ Z
- h+ m& w- J/ ~$ s; B- p( }set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. E. L1 q$ X& O9 ]8 |7 S& n8 ?+ \;;将此次交易的记录加入到customer的trade-record-all中
" Q3 ]1 z( B& o% @. tend
# @( G1 e$ u4 n" t! R. {6 z, M
: {) ?/ H5 o/ _( f) O% Pto update-local-reputation: P6 D- @0 M9 D4 O
set [trade-record-one-len] of myself length [trade-record-one] of myself
B5 ?/ h+ d4 I4 U6 M) K" K% e1 {* j
5 r# \6 _3 P/ K0 _3 N8 H& }
;;if [trade-record-one-len] of myself > 3
$ }9 i- u- ^% @5 L: A' x3 l7 F; tupdate-neighbor-total
l' B% o h2 z2 C9 q;;更新邻居节点的数目,在此进行
( Q* g% E; E9 d( S5 R/ i( U: blet i 3% o1 G; u& Q; J& b' i9 T# K
let sum-time 0
& Q6 H/ ]3 A4 I1 c$ @, ?* o* [+ Nwhile[i < [trade-record-one-len] of myself]
U$ K4 H6 {) k) h3 M/ u[1 O6 y# M! @ B4 S6 H
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), `; G9 k! a5 L9 T1 l0 j' W. H2 A
set i
& j1 p/ a/ i1 H' `: f& o( i + 1)4 H$ P. d" w: t3 ?1 x$ @9 u
], B& L: F! d4 b6 I9 n7 W
let j 30 |( E8 X* c# t
let sum-money 0
. O) p& |* j2 V4 x/ {; j# Vwhile[j < [trade-record-one-len] of myself]
N4 h8 O6 }" n N# `[& X5 e5 k' B/ l$ P5 N# }6 n T& T
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)
* J! D5 h9 L7 g/ s8 O6 Y9 [9 Lset j3 {1 ]3 U* h) x# ?& D2 R
( j + 1)9 e$ g4 \ D4 w! Z
]
- Y9 H' F$ v4 ]0 H+ W+ z/ olet k 3
; _& Z) i/ Q, {* x, ^let power 0
" v0 V5 ] D" E$ X0 N H7 _let local 0
* `3 c# H0 x/ b; ?while [k <[trade-record-one-len] of myself]
" ~+ C; Q8 p1 y8 @' c" _7 |4 k[
( a( t/ Q( D+ J! J5 W8 Pset 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)
3 O, F$ i( q) Y+ O. m) m# y* mset k (k + 1)
" X/ V: x9 `% w]! f' Z# g) M$ }3 I" ]* e7 I
set [local-reputation] of myself (local) K# r: R5 }. D# j) D1 G: H, U
end
5 s7 s' C2 x/ |, q) _2 S- h
! }3 M) P/ Z8 r* v5 U/ Q: }; nto update-neighbor-total
3 h7 f5 [9 T( _4 G. b9 }
. `5 V% W6 X/ I; `, ~if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" }! q: ~' {2 p: z% L9 |/ }' U! m
/ R. N7 @7 P9 b
7 R: [* p; `0 m! D$ f5 D3 C! Lend! ^. E2 l( R% _
- M% T, _; t& \6 U/ ~! c
to update-credibility-ijl C3 P9 O% a5 X( E; v
7 _$ n. h) X0 W( J
;;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。
: e7 A# i' A0 llet l 0
( G9 a7 R l7 Z- c9 t8 A4 Iwhile[ l < people ]
( R5 W) t5 J) z+ Y* L7 F;;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. i# m) I: j# [: Y% w; |
[; ]$ B* h. h# J7 n y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)" |: |* i4 x" R) B0 f2 {7 m4 m4 E; G
if (trade-record-one-j-l-len > 3)% @7 G1 F4 s+ z
[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
) i6 \1 F1 u! Qlet i 3
2 `; P1 b. K- Elet sum-time 0* x3 e% I& u7 p$ S! q$ n' X* m; v
while[i < trade-record-one-len]
- M3 z# H& `, Z1 a* O* j[& x* H0 q9 p0 Y9 j3 B8 y
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" c, z' c% ~: R1 A2 c- Fset i, V" }/ J2 U2 D, x# K2 F" S
( i + 1)
; y! o7 Y) B- B% y5 s]
# H0 M+ } {8 flet credibility-i-j-l 0
7 {5 n4 Z5 Y. Q s; J' k( w;;i评价(j对jl的评价)" T9 _: d! Z+ b4 P2 ~# Z
let j 3/ T! k3 l" a* t" ]' P" F$ Q) R
let k 4# X- }0 G+ o- X+ b" m( {
while[j < trade-record-one-len]
4 Z, Z- _+ u1 B( ^0 n+ {& j[ p- [7 Q% N9 X" ~9 P6 O
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
! K, v/ O( ]& Q7 F O. S `+ Pset 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)5 J/ j* C% j' G- S c$ W9 u- w
set j/ D9 ]5 X' f3 @1 f; w0 g! O* e
( j + 1)+ V; \" }6 x. B$ ~/ n7 |' L4 d2 R
]
2 H( S- O+ }% V: aset [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 ))0 s% g# U6 m$ t8 [
; i# u6 R2 _ S
|% W- _ c7 D' x. nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 u, i. W7 H% v0 @7 X; R) F: x/ I;;及时更新i对l的评价质量的评价
' N }* `5 {+ v: r# y6 G P6 yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 K3 S) G( a2 S2 Q zset l (l + 1)# L0 {, N" _! C, Z2 w
]5 o$ Q ?6 D) d" G/ _$ p: E* y" ^, @
end+ b6 V& k' n8 y* _% e4 {
; H+ j; N% N, w
to update-credibility-list/ m6 b* Y' i+ x0 W( q
let i 0
% ]+ N( p# O+ _1 Vwhile[i < people]* t; K' w* `; Z; n2 }4 [ D
[
/ I/ Q7 F# m8 C( t& l' u' j% X# clet j 0
( B4 S7 t/ D* b) ?( g2 ulet note 0) E, l+ N% S; ]* W3 N# B8 u+ Y+ Y
let k 0
5 F8 C& @& L9 O# j/ r N4 W( W. b" @;;计作出过评价的邻居节点的数目1 V* `( @2 l; P" Y, w/ T
while[j < people]2 W5 Z! w* Q, @: e
[
$ ^! p P# I3 B$ |# v6 q+ {# v0 E9 eif (item j( [credibility] of turtle (i + 1)) != -1)4 n; a& P. j& L3 N$ I; `+ `
;;判断是否给本turtle的评价质量做出过评价的节点
+ L! G6 ?" `$ j0 J) l& G[set note (note + item j ([credibility]of turtle (i + 1)))- U2 l/ Q" M1 f7 ]6 ]
;;*(exp (-(people - 2)))/(people - 2))]
t6 @1 s4 _' }. H% { Q( B0 r# }set k (k + 1)
0 A5 E+ c' Z) a# B]- A" U$ ~2 T$ P
set j (j + 1)
9 a5 o5 S# Z9 C. I! ?]
q) A4 W# k' Fset note (note *(exp (- (1 / k)))/ k)
3 L; v1 f. h* k, oset credibility-list (replace-item i credibility-list note)! o% M& ?% F! h- t1 n: [; x
set i (i + 1)
( w! E! A }9 R7 Y" f2 x]
; O0 f. ^ V% i, X: Aend
7 ~/ @7 m5 ~2 \1 J: Z* _
! J: p( }9 L; N- Sto update-global-reputation-list+ S k U# E3 t* L" y
let j 0
# U% ]* f! l: t) v' p- mwhile[j < people]
! H$ a# `6 i! h4 R P$ W4 c[
! j3 M Z* P! i8 k0 qlet new 0
! [" k. f4 Y; d- M, R;;暂存新的一个全局声誉
6 A1 y; B% Q2 y% alet i 0
# Z4 [. _" L. Zlet sum-money 06 ^! Q) ]8 o- e7 Y- \
let credibility-money 0
+ b+ \& H. \/ @# R/ \+ Awhile [i < people]
6 Z6 L: k7 `( X; V+ Y" R7 q+ A[8 a: ]( i, E$ X+ _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& j% L" M: s+ H& C8 oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): `# Y5 @ L/ O% q0 \) H! D
set i (i + 1)
* x0 ?8 R( N( t5 m]
! K* ~$ `! G% V1 M3 C- W. k( C: dlet k 03 L* ~% V6 F# @# A( K$ B: V
let new1 0
7 H1 e; L' g8 v( L& t/ ^2 E: bwhile [k < people]
# v* c$ K5 J1 r5 a$ Z% q[
1 R7 M. V X% ?. u6 |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)
* P# E+ K6 u2 ?7 [set k (k + 1)
9 q6 h3 B# Y$ ^3 U7 h8 O]* a) t6 G5 s- `: x# K$ O9 L* x
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / k( A3 p, R* r+ r) p5 o
set global-reputation-list (replace-item j global-reputation-list new)0 ]5 \+ r8 ^( s8 J, v6 Z# H
set j (j + 1)
0 u5 L) l: p) d s4 z]
. B; O. X) A: n Rend
1 y3 k7 ~& f" v7 \4 B: D$ ~$ l
7 Q% E$ J2 d& f; l" @, `, P6 l6 u8 h
" l% j3 \- C# j! X) Rto get-color1 [3 s2 }" x* d& G9 J A; R
) F5 `$ y& h8 X9 P
set color blue1 Z' R# E: I2 M; J2 [! N G8 h6 h
end! e& R$ {+ m8 y. P% \* Z
, G+ g* l8 c1 Y0 x/ |to poll-class! f8 K! H U: Z6 x# P
end$ K8 k$ J j9 J L6 I( R
* U& w v! M! O" S& m+ c4 l" u
to setup-plot1+ X% I2 M5 ?& Y" w+ M2 @6 b
2 M. B/ P: F( j. U6 q5 Z- z' } X, `
set-current-plot "Trends-of-Local-reputation"+ r0 V: H- }% d1 e" b' W4 f
& a7 O- I9 f' h0 n( A- o5 ]set-plot-x-range 0 xmax5 J$ }5 j0 W) ^+ i1 d$ B x
4 J3 t5 I/ T( o. H! f2 U' E" ~
set-plot-y-range 0.0 ymax( g. u2 e/ w) _, d% A% P% l' P% l
end8 m8 @4 r+ k2 j
8 q) c, j' q3 p; ~% A7 A/ y
to setup-plot2$ ^( W8 n n$ h4 d$ P" m
' G4 t$ N) Z- w6 g" ?7 Yset-current-plot "Trends-of-global-reputation"& f6 b) O) L: I1 P1 |$ e
% n A' [% j( [- Z- E
set-plot-x-range 0 xmax9 D2 f6 y' o+ N1 Y2 E" @7 t
% f' q9 ^5 p! ]6 O1 @ P( e* R3 e/ O
set-plot-y-range 0.0 ymax
b# q8 s6 ~; V( oend5 Q1 W7 s, s% G% Q7 `2 i+ f
8 g h7 @ g- L, K$ }5 c: gto setup-plot3
T! v& n' X% F% A; u0 o( j3 p4 w/ }5 T6 n4 i C2 R. e* Y9 s7 c& F. h8 s
set-current-plot "Trends-of-credibility"
" _0 i- @. g7 O) K7 |
" N! B. o: g/ i: Aset-plot-x-range 0 xmax' G0 J0 `2 n4 `& T0 x3 ~2 G' t
( z$ ~# }! B$ c' h+ c: w+ W1 G1 dset-plot-y-range 0.0 ymax
. ~' `" S% N' w& @' V" Rend6 t a- O6 z, F/ g# G7 _0 r, Y0 {
- z9 z3 q7 x4 Y
to do-plots
5 M0 f5 X5 b$ S, K" I, Z7 y8 }set-current-plot "Trends-of-Local-reputation"+ U- s; S w* B, F& _1 a
set-current-plot-pen "Honest service"6 \3 Y& E: i. H. ]7 O; a0 P5 S
end* A3 r' L0 n( b x% C
' X3 `5 k4 ~. e+ d! D& H$ b; O[ 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
|