|
|

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/ M* ^: {8 ~1 |- u' T0 j9 z0 n& s
globals[! F4 n6 R8 V2 {+ O
xmax
# G% o& h; |$ F# W" l q. a' Eymax: J, t/ B3 \; h( y# f
global-reputation-list
: t2 c1 ~5 x* H' c/ Q
: u8 @% h! J' Q8 ?: @;;每一个turtle的全局声誉都存在此LIST中
5 E4 p# k$ Z acredibility-list
& m% w5 |+ u [& @& O/ ];;每一个turtle的评价可信度2 p6 p/ i6 F7 `) s, }
honest-service7 l1 z4 U: f2 a( |# k9 ` A* t
unhonest-service
- h- z0 a1 W% E& @' j3 b ioscillation
* R% n/ l3 a- Frand-dynamic
5 c+ k$ P2 ~0 c3 }; F* I: ~0 ^]- A. t5 a( }8 Z% z' T( |
* F: m1 T- a& f0 ]! }
turtles-own[
+ m$ O0 u; ~ btrade-record-all
( b/ g1 w o# h# |" n( U- W/ _;;a list of lists,由trade-record-one组成+ _ L; X% Y! d/ a- o
trade-record-one
& \, B8 R. `+ P6 S+ @: M. q5 F! f;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, p+ W/ H( D* j" Z- M& D3 Q8 o
; ?5 `* q/ n3 A; P: v;;[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]]
( X P+ S" ~) E& O3 Btrade-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]
# ?' N9 Z; T3 B$ wcredibility-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list9 w# U$ g8 W; I' [5 n
neighbor-total
6 K, I2 f, r4 [9 k, x) K;;记录该turtle的邻居节点的数目4 ?6 H8 S) S5 E/ D8 |
trade-time# l' O3 d0 o; I- R* o+ |9 b" ^
;;当前发生交易的turtle的交易时间
( W8 h6 I1 @# @appraise-give) Y u4 ^3 y8 L9 d
;;当前发生交易时给出的评价
. p4 F8 j7 o1 k8 j8 A# \2 _. b' B( Tappraise-receive
- t5 W4 W1 W2 B! F4 G* [;;当前发生交易时收到的评价
1 O$ ^5 v8 m1 x v5 l( Mappraise-time
% y) s6 J7 F0 {;;当前发生交易时的评价时间6 {( W9 d/ Q: f$ Q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- v; {% @8 ?; l4 Z0 Ktrade-times-total$ [- i/ v ~8 L) p
;;与当前turtle的交易总次数
2 L6 P! B3 j+ ^/ jtrade-money-total2 u/ r) y7 n! k3 q$ Q
;;与当前turtle的交易总金额* I( e, k* D! _8 ?. N+ Z5 [
local-reputation
) ~& M9 a. w9 g6 R( Rglobal-reputation4 C) L6 d8 {' Y* L
credibility4 m$ f# ^: E. t/ a- E
;;评价可信度,每次交易后都需要更新
7 y) H, @6 X2 y# M, O2 Wcredibility-all
. L3 ]* t; j2 m* w- F( R% B;;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
' S U8 R5 q; g! _; ?" y7 b9 L& y
& q0 I$ Z/ R5 H. t& w( |+ g2 L;;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* f' S% ^& |$ X) H
credibility-one
& T6 u) \! {0 q2 [* V;;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, N+ ~* I3 b+ \- V
global-proportion# R. o9 E* q( ~7 b2 o1 \) q" V
customer! |$ l0 a% d4 p& s" f9 Z9 ]
customer-no
" K1 o3 D/ {& D8 g. wtrust-ok( e. ?# E& Q1 w* _/ U& `
trade-record-one-len;;trade-record-one的长度
5 x( K: L; l# m4 U- S. |]: g# F' Q6 Y% y7 s3 Z
1 [3 s2 P' o0 L! D) j$ U7 B- b
;;setup procedure
r9 a0 H, w) t z, v7 U7 h2 k/ J. E
to setup
1 Z5 Y; c0 Z S! e, z1 _( D7 ?+ n2 k' i
ca8 X5 }; _0 [4 [" c( c# v
1 Z2 `% p; o5 T$ P, qinitialize-settings
. T6 R+ O% k% u3 _. d
; t5 H+ ]8 L, V S% vcrt people [setup-turtles]
$ b' ~+ W" x% g, ?3 A; K# ]+ v7 V+ _- g9 U9 a
reset-timer
! K) k, S# _( F6 p
+ @: Z' \7 H! y7 \7 }! @% fpoll-class5 L9 K$ [6 p# M! I* ~
' q# ~: S5 l; T+ c) B. X
setup-plots2 v! T6 S {+ b2 ~+ J' Z3 \+ i
7 Q0 i; y. E5 x! W% o9 \6 |do-plots
$ [+ ^2 C3 b5 \9 b5 Z/ [end- c1 ?2 M9 p9 o$ P6 T
' _. U. U" J8 a K& U/ q
to initialize-settings
7 G! q1 Y. {/ y& Q8 S" x& Z9 B; x) U& G* ]& N% X) Q4 O
set global-reputation-list []6 m4 T0 [) C: K) o( `
N: N5 [7 G, {" W- \2 O. jset credibility-list n-values people [0.5]6 u! K& u/ H" m _
# t/ A2 }0 D3 t6 r i2 I
set honest-service 0
0 W; h! Y1 V8 z8 A
5 }+ Z# H3 P% E& g1 ]: }3 Iset unhonest-service 0
! x+ P: P$ g& U, G J
# o) P0 Y" A3 a! @, Uset oscillation 0# p. C, d# y7 y) M+ u! s7 E
0 T3 K9 a5 ~! M, e: w0 ~set rand-dynamic 05 p/ R) [+ a5 ~" }; K8 b* R
end
1 {# a! @7 W: a4 V) [( M9 G0 F f3 E' n G4 c5 [
to setup-turtles
4 D; ]9 z* x) e+ N+ P* g7 O2 T9 F- {set shape "person"
. x& t# F: @3 Rsetxy random-xcor random-ycor: ? P5 A2 q; Y% I. N7 Z
set trade-record-one []
6 X0 {5 n, m0 x0 W4 m- S* j, n) J! l* e& O" N
set trade-record-all n-values people [(list (? + 1) 0 0)] x) O, i( y9 w$ d& e0 q4 J! x' N
2 M' m6 l# e$ l- \& P* g( gset trade-record-current []
* l' M, g0 j# d! ?/ mset credibility-receive []
1 K- I) m# A" l6 y1 M4 W% m$ `set local-reputation 0.5
9 o$ J" I: r: K5 i( S: N0 eset neighbor-total 02 @, `! A! e1 r1 ^4 z2 _4 Y
set trade-times-total 0
: _5 i% N5 [- x& t6 r$ Pset trade-money-total 0
4 B* @: q6 {$ z d1 m1 vset customer nobody
9 g0 ?' ^1 ]- `) O! y4 mset credibility-all n-values people [creat-credibility]5 B- \9 K* Q* |: ^
set credibility n-values people [-1]8 o2 t$ L2 |3 e- N; r: x
get-color0 B4 U# J: V) S5 ?* H
' }: }. n1 p7 ]# V6 ]
end& r r5 Z e) H D$ n! {& e9 N
. f( m `+ r4 W0 Nto-report creat-credibility
6 x1 b* F# i/ L$ w$ |' t3 {5 @report n-values people [0.5], G8 W5 N9 U" i, O: Z
end5 d7 S: V r) e
6 u; Q8 `8 b+ k4 l8 g
to setup-plots
6 h0 c2 H" X! T2 B5 r! a/ ^' n
$ }5 R. c6 w7 z6 [0 {set xmax 30# |8 p# N7 r* h9 L! P9 u }
6 C6 P. }- w* z! `) q/ [& @set ymax 1.0
/ m8 e" i# D3 ]2 [5 j$ f, j3 j6 a3 K+ t) Z& f9 s: Q% `$ z
clear-all-plots
3 s1 b* Y5 W$ A
6 G+ j% u0 ~0 D2 ~: lsetup-plot19 M, K2 i# ~% n8 L% v! I; ~
1 x& y" E9 s* ^ ~" M- q
setup-plot2
% y% @9 O8 q3 R
& J% g0 p- K7 X8 K) J: n; osetup-plot3
/ ~* H- A, u s1 ~6 O- ~end
0 c! @# p4 R3 X% D/ t1 {7 E, p/ l. Z1 ?6 x. j k
;;run time procedures! ]6 d# U# Q. q# [: _% K
2 B# H3 w4 F+ U6 l
to go; H+ y9 V% d1 @3 C i8 ^, {% T
2 E1 v9 W/ E( J; z
ask turtles [do-business]
5 x+ p( T- @* W! k h. Vend! z" A- B% d" H/ }. M) T" ^
4 s; \4 o5 p" ]/ i! ?# E4 J$ E
to do-business
3 Y2 r' t1 Q# I4 I, ], _( P- V" _0 @1 Z- t4 F
6 g( X2 o! O8 } r! v0 u6 S+ q* \
rt random 3602 B- L7 |; h3 p. g6 V3 \% S2 N4 b
3 n8 g. D; d% sfd 1
' K1 L( T9 R; J" e) K
7 T3 _$ E& O; w9 Q6 X! ^ifelse(other turtles-here != nobody)[
) [: b' A. V# E' A% M; w
! K" p7 C( T7 iset customer one-of other turtles-here
% ^7 i$ H( {3 u b# y' K
5 R+ n, Y! r6 |0 [;; set [customer] of customer myself
. H! U, V' L }. V9 v3 l6 q. X
; Z, y/ c3 N8 c' p# @. A( U( Nset [trade-record-one] of self item (([who] of customer) - 1)' \' @8 R4 Y$ U7 N$ |6 Z
[trade-record-all]of self( J2 \3 ^& f( T6 j, F9 i: I& ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 T" E* q+ [- Q5 c- D& j
5 _8 l/ p5 B& F V( v: c) w0 X/ H
set [trade-record-one] of customer item (([who] of self) - 1)
0 t! Y+ F# \3 N/ L/ W, |. @! s[trade-record-all]of customer
2 z* ?$ t9 R9 y) a. Q2 M: p6 }8 ~; k# J" D* B9 h! x* d
set [trade-record-one-len] of self length [trade-record-one] of self
) @, Q5 J0 i" T4 Z* C; c4 ~+ P+ [0 _% L3 a U) i1 O n, L0 e7 j6 w/ Q K
set trade-record-current( list (timer) (random money-upper-limit))2 c+ D- T- I8 d! B- M9 `7 F
% h3 G5 _8 J+ X, ~5 mask self [do-trust]. U" b* h, z5 K# M. a0 a- s+ u& W
;;先求i对j的信任度
4 Q0 m6 N& i) \0 p1 S
! M9 U% ] z2 h. o+ ]# _if ([trust-ok] of self)! h0 F$ i+ P3 D$ u5 s: Y
;;根据i对j的信任度来决定是否与j进行交易[
; ?- @8 S, B9 X* b) C( P0 D- ^+ qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" s! `0 p) O; L0 G& a' k- t
" [' U$ g9 `; h: C7 i[( f4 z0 [! G7 K- Q& ^
4 f9 I" ?- m# O/ g6 h" P0 C8 Gdo-trade
! I8 z1 _5 N" z3 L" P) m
/ o: |- _% q" U" \. H& a# y$ `update-credibility-ijl* | ?& _4 z: l' \ F
& L, c# H8 y1 ^: m+ e
update-credibility-list/ d: i) S2 J" R
9 g& N: n8 f+ z, z$ Z6 k7 {3 |) ?
8 V5 ?" D+ g7 a) v, W* y* l6 g
update-global-reputation-list
$ U0 q+ w% n! |% j2 s8 x" y, ? X6 U: d2 u" k3 X2 q! W% } t
poll-class
" @ p% s( i, L! \: K$ y* B7 b
* J8 g0 @7 u4 W4 Xget-color
: s+ o* p W$ Q2 b2 h: z
' h1 ]: y6 k6 C]]: q' O/ }+ S6 K8 Q: `' `
/ u- ~$ J; Z7 ?! l4 X
;;如果所得的信任度满足条件,则进行交易: l$ O3 q/ k" R
' d) y( T! \/ @ ~ w5 H3 c
[
! `: W. `+ J) ~, G: C
4 L# h: B9 L2 \3 K" [! Srt random 360/ d" w! q7 w/ `7 F, j
* H) [( ]2 N6 Q' u2 Bfd 11 h+ |* v8 V. d
/ C4 x2 _0 n/ E1 Q7 O]
7 ~' [( K& o4 D# U% U9 m4 ?) o! G! q) p! I
end9 D9 i( c0 p. [; e, w
4 t1 U* g0 P* \
to do-trust
' f& \$ q! t$ `5 n7 z w5 tset trust-ok False, ~0 e8 v5 o! m6 d4 c
. n& O1 |* f) S G- n# i! G4 l! V
+ \" z# _3 |' T# v4 N) Olet max-trade-times 0
" Z& m, n/ A! bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& d7 ?$ @, q5 L0 a* d
let max-trade-money 0
5 Q- U! c5 h3 \6 K& G* \: Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, o; o: h4 k' @. Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- c% \/ k Q. A* m6 ~0 d+ ]
" Z: a2 T# v9 R* O' n! G6 q; I; V E; l9 F: w3 F0 I( i' H
get-global-proportion
7 ]* F- ?6 r7 t4 M+ glet trust-value
# J% Q; S3 w& i9 O6 u/ ]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)
: q/ M2 ?% u# u7 V% P% V1 Vif(trust-value > trade-trust-value)
% p% f% g3 y8 V2 b2 D[set trust-ok true]
( w+ W, {0 L/ J( c% I ?end
, P5 X( o6 v0 `, Z: S
$ t1 V" A" l& B% r4 I. ^to get-global-proportion
& t2 w- E6 V! N! e( i9 Gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" b6 E& ^5 g* f/ ?[set global-proportion 0]) Q6 S X) r4 ^1 q) X
[let i 0
, ~% g% x# p+ R$ ]" Q# Y* plet sum-money 0
) [ i E6 y9 B0 e# o7 Vwhile[ i < people]) c7 t4 G1 Y0 G7 t z7 Q, i
[
8 `+ }1 ?7 R2 Kif( length (item i. P+ s9 A' S) z2 b
[trade-record-all] of customer) > 3 )
P0 B6 m) W# K2 v[# E# M8 b, c6 F( z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* {$ A+ |9 |3 M. Z a- x- t2 W+ Z) `]
* G0 \# C# F% X( M]
6 {, ? V1 R+ B$ }( |1 v: q- Blet j 0
; A6 {0 B4 T& ?. K# Ilet note 0
. Y+ A7 N' z, A3 X% T5 s% |while[ j < people]
; n1 a# y# [3 M* M# k; ][
0 v4 {( a+ Z4 Z- `0 j5 I! ] a" Pif( length (item i9 S. v8 \. z8 R: h3 V
[trade-record-all] of customer) > 3 )) g+ l6 `: T* x4 t1 K$ w
[
7 j1 T& g6 q1 {- ]& Wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# g6 J" i7 `! ?# Z/ M[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' ^. G7 Q# z* E, W[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 N$ w; F& ~$ [
]4 Y$ ]; B: ?9 v% ?9 T$ X1 f
]8 u' m. F, h/ Y. `# w6 W! D
set global-proportion note1 o% p- ~* T2 R
]; h6 J; i9 c7 k. N2 d
end+ G4 Z; x I# a0 V) o
" S2 y" M# z2 q) `
to do-trade1 Q8 ^; w& e. C
;;这个过程实际上是给双方作出评价的过程
R5 S( a5 p( g% Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* ?; S) A I- R& _7 x5 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# X1 e0 ^2 A, j+ |, i/ r& [set trade-record-current lput(timer) trade-record-current- {8 M7 { s$ A7 x6 w- ]5 ?
;;评价时间( E3 E6 d8 S2 H$ {, y
ask myself [
) J' T2 }0 }% o' ]$ V4 B, R. tupdate-local-reputation1 ~ T5 ` h6 t
set trade-record-current lput([local-reputation] of myself) trade-record-current3 u4 m) i2 N& S; N; O, I
]# M* a% w9 p: Z& v# T6 d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 @2 e5 N8 N0 S$ B S;;将此次交易的记录加入到trade-record-one中
* C9 P: S7 W5 jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): q( P$ X) M& X# G: B
let note (item 2 trade-record-current )
1 e6 _( U, B5 s" A6 Qset trade-record-current4 q8 a( T7 A1 H" H; [- g/ Z; e
(replace-item 2 trade-record-current (item 3 trade-record-current))/ B4 _9 ]7 H, J
set trade-record-current! o2 R4 n% B+ U) W
(replace-item 3 trade-record-current note)
4 A: C. ]2 A. ?5 O0 ?7 T7 i2 b/ ?6 c; c+ e3 c8 k$ L
' S2 W9 M$ P; `4 {
ask customer [
( e# N J6 s2 k! U2 |update-local-reputation/ i0 z5 F8 g, v8 {' P0 Q$ t3 ^
set trade-record-current
' p' J9 ], a& F9 C4 O(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& u5 @* M1 O7 |- w# W. [/ M]2 J5 a3 R6 }3 T" U# {) S( h9 n) g
- [5 ^: f T3 _, o& k
& T9 Y q8 w9 I# d% N, aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 z, J8 o2 e+ T# a! a% a8 d6 K( L0 t# h8 a3 I, P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). _6 P& b2 z. y7 s4 b; v3 v
;;将此次交易的记录加入到customer的trade-record-all中
$ D% e Q/ P" F$ o: vend
9 \: f5 Y# k' D s& T
- V. P# a$ L% R& O4 W( |to update-local-reputation
2 w! k" O! O& Y) c9 y2 r; gset [trade-record-one-len] of myself length [trade-record-one] of myself
& z' j/ q' X% ~* }; M# `4 `2 R0 j) H
* T. D0 _3 t/ f* U9 t# w) E
;;if [trade-record-one-len] of myself > 3
/ W4 Y1 E9 l1 C$ Pupdate-neighbor-total+ b+ N# C8 j$ G8 \5 Y' g
;;更新邻居节点的数目,在此进行
+ o, G) s% E9 Y$ e: a) P6 mlet i 3
. N f% e F% \$ @) }! Ylet sum-time 06 q7 D5 j" q: E3 H, y
while[i < [trade-record-one-len] of myself]( Q( P! R# B/ I. r( T& k5 ]
[
6 v4 N7 Y# |# u2 Aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, ?0 O6 X0 @/ ]4 c$ t" i- bset i) S" R) @ O i; p. G
( i + 1)
0 H: [/ c; l1 J]
" S6 e1 r. U) ~+ O5 Y& t; \) Z" vlet j 3! ]( r0 m2 Y' e, A# e! ]( ]
let sum-money 0
2 o9 { d! H8 d% V0 ?5 {while[j < [trade-record-one-len] of myself]: ` N# |9 b2 H+ P$ p
[$ _$ @7 f) M, N4 f$ t- f5 c+ V" z, [& U
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)
/ v0 s: a+ m$ J1 W$ vset j
" t* V" z7 Z; H) u: o' i( j + 1)
4 p! R- |" j+ o$ |* P2 h]9 G! r! m( u6 S7 P
let k 3( d W/ v5 e" L1 x/ f
let power 0
& W# v$ K7 E. z1 R% r0 z7 [6 elet local 0+ ]$ W# `$ d, k$ R- D2 A4 ?
while [k <[trade-record-one-len] of myself]
- }- X' p @; J7 I9 ][
9 ^3 Z8 r/ i$ g6 O- Zset 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)
5 o9 ^* a! I8 ]+ z, xset k (k + 1)8 H9 V t. V, o3 Z; @0 ~
]" X9 J; T6 g: g
set [local-reputation] of myself (local)
$ y% f% |: o% d- G3 Y _end
! a3 X3 i4 \- G0 T/ _- L
# t; i5 ]3 H4 `& M9 L. Tto update-neighbor-total
/ t0 @0 `4 }$ j/ b- b1 W" E0 x; S. Z( p2 M G: v8 [& e5 P
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) \, j9 ~" u! n: d2 @0 ]" x0 T" v9 ^/ z
. r$ ]: c- ]: {% @/ D- Send
; s0 W8 _5 T. u) r. H1 m% N( E# m' ?" p4 O+ D
to update-credibility-ijl ( z: U C! l* @
) u( ^0 A/ }! d( v5 l$ z) 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。' S6 g- T7 l. P9 C$ Y( @. r. a, ?
let l 0& k6 S! c6 K+ j4 n8 v6 q2 Y
while[ l < people ]7 |9 G/ t: ?3 h7 v% }; _
;;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
, D. j- m# B2 o4 X4 ^# q d[
; @5 Z7 X0 W8 [+ Blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)) Y7 S J# @0 H1 n
if (trade-record-one-j-l-len > 3)
0 T& n5 f! T% D5 R% a- _[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-one8 }, g# d/ L, [* u3 r0 l, i
let i 3
! ^: M# l; F# v( t% L* Llet sum-time 0* {1 U. X8 `" u. ^/ P% B4 B( V x
while[i < trade-record-one-len]. t5 g3 ], {. h' _
[
9 p2 v! r9 }* ^9 _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) K2 E' J6 S5 k7 w' tset i1 d! C1 v! @. R5 i6 z! s" H: k* u
( i + 1)/ T+ M% e' ~8 |; a: e
]. t3 R* f$ C: M( M
let credibility-i-j-l 0
/ h4 _1 V6 F" P/ m) O0 \* S0 X;;i评价(j对jl的评价)" Z- k$ t. @5 M+ A5 q- T" H" r
let j 3
$ Q- ?5 h" W5 T! Zlet k 4! ^/ I ?% u& E' [, j* |- j& _
while[j < trade-record-one-len]
% G) J$ {, D& U" T4 E8 y& E[7 G/ e6 h/ ^/ a' l# s0 J2 a: _
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* _& W! ]4 b, n0 |; R6 r* O
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)
1 F0 b5 K8 `' k U" y7 a9 ?( Gset j
' k9 y" x# B: A% K% ?( j + 1)
) F! y0 @6 ~3 c% l]) R8 I5 ~/ F7 c1 b
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 ))
, i6 v- J: T/ ]! k: n8 k9 l8 O
, _# F! J2 I6 P3 {& M3 s* }2 D2 C( g
& P% {) Z# @- a+ }2 \. Vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) {! x- P& y6 u$ x
;;及时更新i对l的评价质量的评价
! l5 W' N' X a& [+ fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! b4 b4 b/ G. L* p! k* E, b# `$ U
set l (l + 1)( r$ I; B c v: G
]
9 R! _& C& u i$ `" S/ O0 tend5 b4 _0 ?% ?/ |$ E* h% {+ s
* _# v+ V# e8 u1 yto update-credibility-list6 ]5 D, t4 {* E" v& d' F
let i 0
8 I/ Z: J8 J6 o; G: hwhile[i < people]
* E# ]6 T: L4 [$ R4 y[$ ^0 k2 i# e5 e
let j 0
% `' ]4 S8 Q6 Z! [/ olet note 0: N6 h5 B( m0 c3 R2 y% w! X1 _/ d
let k 0
' Y% @, @- M) X9 _;;计作出过评价的邻居节点的数目
, g; n9 T1 P( K, k2 l2 h, E& ewhile[j < people]
) j: H# g9 E1 ?& Z+ ]+ L[
2 R+ B3 ~6 V* r, U; Cif (item j( [credibility] of turtle (i + 1)) != -1)% d% f/ X8 Z* v4 F* t
;;判断是否给本turtle的评价质量做出过评价的节点. ~1 m$ `0 H+ m9 x. c$ e
[set note (note + item j ([credibility]of turtle (i + 1)))
, Q$ w3 h2 g' P h u; R8 H;;*(exp (-(people - 2)))/(people - 2))]2 l5 ~" _* s+ S; |
set k (k + 1)
- R$ G. m9 v% e, C% N$ ^]) A5 p& J# G) `6 K
set j (j + 1)8 o/ O) l' S5 O: ^) l! h+ O6 E
]/ F5 E1 x. a% I7 G7 o- `
set note (note *(exp (- (1 / k)))/ k)
- m ^0 k9 ~6 C7 [' X3 S8 Cset credibility-list (replace-item i credibility-list note)
$ V( ]7 M& Q: Fset i (i + 1)4 [5 L: `6 l9 S
]
3 F+ J9 }! r3 U8 ^/ C7 Hend% _& c, Z( E" w: B- N% Z
b' K4 V9 l& O4 X8 Z( ^
to update-global-reputation-list
4 O: `+ i6 }1 z" }2 o! v" |) |let j 0
, r9 o: i* Q( g- {8 ]* J8 l3 dwhile[j < people]
% q5 M) s& H2 d4 P# z) W[) Q, n6 i- ~& J% F
let new 04 T* X; h! Q9 q8 s1 l& _. @
;;暂存新的一个全局声誉# P T: S1 w$ r- y/ `% L5 f
let i 0# F9 N; U. g) a$ N
let sum-money 0
0 r/ y3 n3 D; h2 Blet credibility-money 03 F# q6 F, z7 {/ `( [
while [i < people]
( h# r5 L" j4 O J& P[3 y% m( k$ w$ x& c; R* M! C0 \
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 [0 F( p9 [# P) ~& n6 N
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 p$ d4 z6 h6 e. `& ]
set i (i + 1)7 N. [7 }2 M) v, s
]) u; J0 D: q4 A0 ]/ D
let k 0
3 E4 R9 f5 j8 K5 B, `: w/ [/ ~% m* nlet new1 0; F' w: B' W) |3 y7 D/ `( U8 z0 m
while [k < people]
, ~$ T+ a9 g! O% A# O[4 D1 P j$ y2 z6 W5 F/ K. g4 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)1 l& n1 m8 V) ?/ \+ V9 ~
set k (k + 1)
' F" z+ X* y! X: v% e. v% Y]8 u8 g# s8 U5 v k" Y) w
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 z0 n* @8 l5 S9 x4 V* }+ b; t6 zset global-reputation-list (replace-item j global-reputation-list new), o$ B* A. d, z9 ^6 s* e' n
set j (j + 1): D: m- C5 m2 r9 h% a# T/ O; j* ?
]% Q/ t, Y" t8 c) E+ p3 f
end
4 I( y# A% L: x: G0 X$ j" G+ E5 _8 W
- l0 C' e. p9 y6 O3 j" t' O4 o3 j, q6 [) S
to get-color
# s4 j5 v q& E: y6 M+ H- F1 V0 v9 U5 f9 M' `/ U' B' C
set color blue9 }/ y- J9 n& ^ ~. P c" S
end! j& i& H7 l* d) }6 a6 z
* `, P1 U: m V/ O3 ^to poll-class
' ~$ U+ W, r+ A8 U6 e7 Y) _# Oend
1 @: C' f$ P0 d6 [' y
$ F5 n9 J" d8 }5 H! ]to setup-plot1/ t( x' o0 g |6 W" } \
. V2 `2 I% O, o' |; l1 u4 z. K, |
set-current-plot "Trends-of-Local-reputation"
n0 R' [0 g Z, S3 Q4 G R# E9 R M* o, z Z! ]% N+ l
set-plot-x-range 0 xmax
{1 J1 I0 V5 p( y3 N# s
; U5 B3 P& u# x, x& f5 Z! D3 Pset-plot-y-range 0.0 ymax, e6 w; K* }3 D3 E: u# ^. d8 |
end
9 d. A. B2 d0 s, c
( d1 N( V7 a' qto setup-plot2; @9 P3 D; H# `, E( Q; l2 i. `. `7 q( [
# O, | m: N- f, C4 fset-current-plot "Trends-of-global-reputation"
( N( q. Y( w5 Y, b& p, X9 u
- z4 ?$ ^* L: Z R' yset-plot-x-range 0 xmax9 z& B- S/ J( s1 U/ T0 M5 S
( q! i3 F4 U: f. `1 J
set-plot-y-range 0.0 ymax
& b. P" @7 J4 o, @5 n8 Jend
: U; l2 x/ T. h, \8 L( J: e& Q* }2 b; I r) {
to setup-plot3
* F1 D' {# ~; E6 F5 d( d: m- ~/ E- i0 n) T
set-current-plot "Trends-of-credibility"
) W' V6 e P1 r8 h" Q; o& o
! P2 G n. L9 f: B9 L+ q* Kset-plot-x-range 0 xmax9 }% C( ?$ ] x" I) x- n
- @% B6 C- `; J% ^0 ~" N
set-plot-y-range 0.0 ymax
1 P+ l0 R* [, M7 O( a! `end
% Z# S# v _6 l( e1 u; E" Q' P3 [' u e3 N& t# X; k% d
to do-plots7 I7 H; s0 |; p+ G8 Z4 G
set-current-plot "Trends-of-Local-reputation"
) n( k9 n9 V6 z' L9 Nset-current-plot-pen "Honest service"
- D+ |( G3 w: C: k- qend4 X# ~$ ^ ^! x9 W* q/ `
" _" V4 Z' G; T, s5 ?) \[ 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
|