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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0 Z6 e# ]: p4 }8 O
globals[
% i) B) j2 L9 J( V/ ?3 vxmax
5 v! E4 s1 a& x& I- A- Oymax
4 i( g/ ]) q. V7 |global-reputation-list+ L F" n O' N
$ d* s9 F' P2 g1 l* P
;;每一个turtle的全局声誉都存在此LIST中
% j1 ? ?( D# qcredibility-list g) z; e" D N: z+ a D1 D0 p; w
;;每一个turtle的评价可信度
4 ]' {2 L) S' ehonest-service
! j$ p2 W3 d2 Z2 S5 R7 Munhonest-service
, p7 X! ?3 F8 b% goscillation/ W& g# M$ x7 O7 U b- T8 c" i
rand-dynamic
) G$ T/ i' q! t; g7 I$ x]) s/ U7 d Q8 {' _
7 d5 U; h1 m5 s3 @8 l: I1 iturtles-own[% E, ~) \3 I/ M4 }2 b% B3 z3 G
trade-record-all
" | D" W$ H9 S) a( t `* S* e;;a list of lists,由trade-record-one组成, f! X" k4 F' p" y# t% i
trade-record-one/ z6 ~9 K3 z. n8 U
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: \2 |0 T0 a2 b3 \5 }% [" o d
2 o* m3 M! T$ D+ Z
;;[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]]. V; f' y! ]3 Z( Q5 v) b
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]
! Y$ }3 j, J1 ?2 f/ Ycredibility-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
" _. O' j( E4 x+ O3 Y5 ineighbor-total
4 \' }. j5 j% [6 T N1 l. w;;记录该turtle的邻居节点的数目
# @* _1 q; b1 z. Ptrade-time
9 Z& f$ E5 G7 R. h9 ~" };;当前发生交易的turtle的交易时间/ ~8 ?9 o- M$ F2 q# ]4 b' c
appraise-give1 l+ s4 r" H0 t% N9 a4 G
;;当前发生交易时给出的评价
+ i7 M. Y! h8 d5 V" \: }appraise-receive
% d% G0 j6 {2 N3 e;;当前发生交易时收到的评价
) U# S7 q" j8 U, B% ]2 |; j5 J" D: happraise-time' t4 B1 p/ ]+ V5 o5 _
;;当前发生交易时的评价时间
& c( T7 L1 b+ Alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉+ q+ q- {! P) E! K. F) ?
trade-times-total* ?% u( _# K" Y! r
;;与当前turtle的交易总次数9 u# g' j" A# P, [9 q' w
trade-money-total
; f3 k$ f8 r" @* d$ k, W# _;;与当前turtle的交易总金额+ g5 U0 o, K4 o* P6 F8 C# Q# }
local-reputation! V$ D. n0 R5 T' S
global-reputation
) a. o9 Q' P* X( T, J. @4 X, gcredibility
- |1 \* V) @# M: [;;评价可信度,每次交易后都需要更新
; `( w4 W* a: {* g- Z- S$ vcredibility-all3 v+ P' y( e- ^7 l$ {, D
;;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
- Z" N& ^& j9 g2 S; k: v; @/ H8 a. Z) R% n! v
;;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
: `( {2 @! Q6 e" H" a8 k& pcredibility-one
7 A" W$ y6 z7 m5 D/ Z;;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
' z' Y3 N; i0 A) W( b6 Gglobal-proportion( E: f, d, g0 K2 D$ H
customer9 S2 Z$ o# f2 l: R* m
customer-no# Y" g# Q. d: N
trust-ok
' C" M3 X" p' h9 H* I) b2 ~) otrade-record-one-len;;trade-record-one的长度/ H5 U+ D& e! I8 b' C
]6 I* `1 V! c4 I* N* |. I* o
`% T5 V4 B% M* [1 F6 y;;setup procedure
7 e6 d* |) V, _ A- S( q
1 w+ x1 }2 X( j+ G; |! a% Vto setup
: e1 G* N Y. |" ^; _& ^
7 C& _4 l% }. u- Zca
# P5 `4 L8 E6 B+ [4 \9 u( Z& R
6 s+ G3 B2 ~! A( P# y# \+ K6 Ninitialize-settings: ~. T/ P# T9 _
1 S0 G6 P" N. A' X Q0 r, K0 r. v9 Icrt people [setup-turtles]
" K* S8 q( Y. @+ k: p+ k' r G7 E: g7 O* Z0 ~
reset-timer5 b3 v2 n; J- S% x
+ R( q0 `9 ?/ [poll-class3 G* R1 k' h6 e3 k- a/ W, t- l
+ `' q: [" ~5 v2 l' ?0 M; Psetup-plots# c' P9 g8 L8 m$ F) G/ U
' L) _+ W' J& r" _2 w( ldo-plots; W$ R5 x* R0 I5 H
end
9 o- c: c2 M; I4 z. E" d3 o) f! ^
& [+ R0 W( X W' Kto initialize-settings# w3 q3 {) U6 w7 ]( [ i6 e
! e+ N# `# g. O/ u1 N$ [set global-reputation-list []
0 z& c' W8 \) j3 b. D7 p5 C( m0 w+ {- X8 j7 ~( w0 f
set credibility-list n-values people [0.5]% a3 _! P$ `$ U! q7 I5 B# x. e8 K
* x, |# d1 Y, x3 \
set honest-service 0: f4 I( n" ]9 P+ j, X& y4 V
% j0 j3 M- K b5 B3 Q' g* m
set unhonest-service 0
0 U" T8 `: h, M* U, v% H( N4 G0 b% q& z5 {& b2 j7 t. `
set oscillation 0
4 U! H% z- _' r" A: t- c
4 a' w1 w1 `1 B1 H- Rset rand-dynamic 0
, p% ^) M( P, u$ U, Jend
$ d9 K# O! Y5 {7 E& m. R- v; s2 o, M1 O: r9 `4 u
to setup-turtles
! p9 r/ Y X5 \6 d7 [6 Mset shape "person"" h6 i6 l+ I% k n/ `# J6 d& t
setxy random-xcor random-ycor
i" n, x3 b5 x! E, Hset trade-record-one []
# }* E2 P$ N: H- s- S4 B
+ g% O2 B6 G) k# x" _1 h; Hset trade-record-all n-values people [(list (? + 1) 0 0)]
7 M, m5 i$ a) w1 Z) g7 S
, v9 o: j1 ]( H L7 eset trade-record-current []' w6 C; h( F* P5 t
set credibility-receive []& ^1 g, J9 {' [1 V. q0 b3 W- O) P, P
set local-reputation 0.56 j6 M# U. x5 @7 k
set neighbor-total 0
0 e) W; W# f; y$ yset trade-times-total 0; X& q- x& D: }* e: p( s
set trade-money-total 0
' B- s& \8 z/ q: Cset customer nobody
" i+ l1 c/ v+ x1 b2 _( q& Vset credibility-all n-values people [creat-credibility]& ~) _, U$ i ^
set credibility n-values people [-1]
$ D7 I# J+ D& B" g3 Yget-color
. F1 E* T8 q: ]# |, g" G6 N6 h+ j2 I2 b
end' x. J t$ U9 |+ m5 Y; R, F
+ ~- \+ r7 Z8 A4 |- Z# }) U
to-report creat-credibility
* L/ ~. m& u& z% K% {report n-values people [0.5]
) y( T8 E4 ~: I5 e/ o; r( wend
# ?4 Z4 A& V S# T; j
2 ?; d$ j5 P0 V) r! Uto setup-plots
2 K; f. F( E" k- q9 Q, Z& h5 x+ y3 V# f! i* K* A) p6 {
set xmax 30
) M+ W# ~2 X! I1 y0 w0 U1 |( z5 q! z: K0 g, s0 f. c ^0 q( ]
set ymax 1.0
+ L. R. k, y7 x4 ]" w- p4 P
3 z8 H$ C) i2 Aclear-all-plots! ]" G8 Q3 T0 ~! u: `
8 Z \+ l6 ^' ?setup-plot1
* s2 w& z8 X6 _& Z/ r: b8 a6 a# Z- W0 {2 |3 U8 {2 R
setup-plot2
# Q0 U3 }- V# U' z, A' \# X
. M1 l+ H& K& s0 `! _" {1 msetup-plot3: G3 ?+ d, c& s8 D# ?! B) S
end, l$ g- R' _) J. Z9 W: d2 [$ i7 z
4 F% c$ D" |( Y: r' G- n6 w/ P;;run time procedures
4 x( B* J8 |7 A8 p& Z$ I+ [4 M/ e2 E6 J0 f- C$ Y
to go
/ f G' v" m; S O% m$ s( F+ M: p) a6 ~) q4 r$ q2 R9 _
ask turtles [do-business]% B4 Y; a: G& _
end8 z% u7 ~$ O) C/ m: S& P
- ?6 L5 |. H% @% H$ A/ \( Jto do-business + A$ o' L# ^+ {3 ]' D$ @+ b
) u; h7 b' F- a1 H. X9 M5 Q' U, \' S& @9 z1 j
rt random 360
( N1 g1 U* y# q! I
! ^+ m* T1 F/ {fd 1' l2 d: D1 R; K' m( l
% m r* Z, ?& Z1 g& B/ j1 Z) s& A
ifelse(other turtles-here != nobody)[0 e* d- X* ?( B1 ^$ L! I$ i
/ c3 `3 m$ g: p" _! U q: Hset customer one-of other turtles-here' m) N( t! z+ e
( D7 t4 H2 T5 p5 C;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
: d4 s5 ]' a& e4 y3 ]% J. V* N1 ?[trade-record-all]of self* l0 m/ C' q$ C( ]) i" G- m" K; [0 x" h
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 x6 Y# a! D0 S& B0 \
N1 J; R- X: @) |9 i' y; X" b4 W
set [trade-record-one] of customer item (([who] of self) - 1)
& ]' q* x1 p6 \# X* [[trade-record-all]of customer' t" n8 `* b4 D2 |* \2 S
+ u- C; b6 C z" V. lset [trade-record-one-len] of self length [trade-record-one] of self/ L- c9 [% I$ b# R# D4 ~
& y- m+ @% I0 b+ x. Gset trade-record-current( list (timer) (random money-upper-limit))
; e# t# W- ]$ H9 o( |1 ^* k( j
: G4 U! t: q9 w B @ask self [do-trust]: V: e ?9 K/ J
;;先求i对j的信任度
$ w8 E% k9 K$ ^7 U y! D' a# s: [9 R# h- K4 D7 I
if ([trust-ok] of self)
+ k! g) P( O5 E' q2 g;;根据i对j的信任度来决定是否与j进行交易[
) X6 {1 ^; ?. _& {1 ~$ M$ ^7 nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( x; h& O, o3 r% }" A: O9 x& f
8 s& q: W* y# ]/ Z& e6 F6 \* s[' @# J6 L: e! C2 Z/ d2 C2 S3 I
( B) X1 H) {# m. i. d( Xdo-trade
1 u9 ]$ N7 {" H) K- T: g0 A0 j& l# m9 O/ \& l
update-credibility-ijl
I, {- v! h5 \. O3 Z/ I/ Q6 F7 u, S4 h$ q p
update-credibility-list0 ^# f. T# P& r0 K4 h$ n
g1 _; \+ {5 x/ M4 O Z
4 X. _* ?0 l) r2 J* R0 x& Fupdate-global-reputation-list
/ v: ^. @% _7 G. ?8 ?3 Q( A6 F5 {9 S4 L
poll-class
/ ^' S- W) A$ S8 `. k9 Y
, n5 L9 H9 ?5 E1 @' a& {" yget-color3 i- y- j( S3 E: G
' C$ B9 Q9 R' S8 F; ]" G]], j8 t! O2 R& [$ z
& o" Z0 z2 E0 H: O0 ~# c4 A# O
;;如果所得的信任度满足条件,则进行交易
4 E( e4 }" G5 W# u. }$ P% V: |/ W/ y- t& L9 C
[
" `, K% Q! C% l% d' X) |! c" H: j$ E( D( ]7 o# A3 C! d
rt random 360" s& {" g, p2 W
* D1 b! ]2 l$ |0 \; u
fd 19 C X7 |" p% Q
9 T. \% M, Y# ?7 a- y- t) m$ y]
0 }; C& f$ U5 b0 u% @4 i2 o: h* Y: }5 a- d- }* o! t
end. I& u8 p" t/ G) X: x' ]% L
& g2 e1 _4 w. v8 L# e( F" yto do-trust
. k) S ?$ @5 l& Dset trust-ok False
/ r1 p; r) f4 [1 Q0 j9 O. {( T4 b6 x
& [0 ?: j2 \" y+ n
let max-trade-times 0
* m6 c2 D! B% uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. W9 b' ]) i @
let max-trade-money 0% ~$ y3 m5 k" P: Q" B
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 B$ {% b9 u' Alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. r# e) v. s$ F. P, @/ Z
, T" S/ F; Y; @& j5 x! T% ^/ d+ U
2 c0 [( B9 W+ j/ P$ v" d% ?get-global-proportion
& p% A- r& ]. w+ z# g5 e9 X* Hlet trust-value' V5 a6 J: N! U# b' C& k
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)
* \; j: z( c/ ]* [" x2 C+ yif(trust-value > trade-trust-value)
! {4 A* d8 J( @7 V0 _" F4 A[set trust-ok true]! } R/ s0 W8 U* L+ M: f6 i
end- H! f" o' W, i# q
# N1 r! v: H% h& K% eto get-global-proportion
- Q o+ u! O8 r# Hifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 D9 Y& l+ [" P- `( Y, A2 f& k* ^[set global-proportion 0]
; p6 k2 g3 K3 M5 R9 Y( o[let i 0* k2 _6 k8 K. e; m, \1 u: b( m) I
let sum-money 0$ f. E5 P/ j7 k; f. D: p
while[ i < people]. ^6 l1 v; \6 X s: l8 G8 M
[
, w! i# B; k# hif( length (item i
6 a% I7 B2 i4 ]4 o1 b9 [3 ~[trade-record-all] of customer) > 3 )
" K8 |8 N6 R1 Z[
% }1 c4 z( `3 B! ?+ ~: a; `set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
- x( |# M, ^: p4 }! K) ^8 []
0 F# f7 y1 D. Z! k% R {2 a" p]9 A1 c( `3 ^6 B% l/ _. w1 P: f
let j 04 P* W$ A* @( C n! z
let note 0
$ \0 h" V+ r. z5 |* m/ Fwhile[ j < people]7 V3 P J" o$ o9 c/ Z
[0 a, ^+ x) d& g! K2 t
if( length (item i
- K7 h2 g6 G; t9 ]0 o4 v[trade-record-all] of customer) > 3 )
1 A6 D3 B0 g' `0 O' |( b[( j! s$ M; ~+ ~5 R) \2 p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 i+ s( R9 G( k[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 q( b0 i5 ^5 ?5 w/ n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% E3 f5 [3 J v, Z& V* }; ]! T]
# H3 U: @, b$ w) P]
: @7 n }' q1 N8 d, p7 Q# ^set global-proportion note
, \3 z0 a2 G4 T3 n' ~ f% g]
, [9 u) X1 l6 e$ ^0 _8 f. {end
" h$ Y! W& v' k' M J A5 G* c6 S; e# e' N4 g3 Z
to do-trade
5 O- d: u, o2 m$ R- r& K/ f;;这个过程实际上是给双方作出评价的过程
1 w7 i5 Q P% D0 c$ R5 B, [) Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# y& b9 B0 `8 @* eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 d/ E$ j" L; A3 t4 H
set trade-record-current lput(timer) trade-record-current
, _0 j9 k4 S; h;;评价时间* `$ W: Y1 Y" A5 w2 \7 p
ask myself [
( ~0 I/ U* R% w) @ g$ nupdate-local-reputation) j9 J2 J3 p- l) c3 ?$ @ Q# ?
set trade-record-current lput([local-reputation] of myself) trade-record-current
0 Q- v4 A* e T; ?% k z]
: Q. s$ T. \/ }+ e' ^' G7 Kset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 M* b5 t$ y3 ]7 H$ f& P( O- x;;将此次交易的记录加入到trade-record-one中: i* v% {8 u/ ]* ]' V4 h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
H* X9 t3 r6 C) x$ Q0 `6 a$ xlet note (item 2 trade-record-current )
( ]4 ~9 x; C+ tset trade-record-current
4 _" t& f8 n6 J! `1 F# }" T(replace-item 2 trade-record-current (item 3 trade-record-current))
9 R ?1 ~$ H" s Oset trade-record-current
' i$ w/ @1 k) I# _(replace-item 3 trade-record-current note)
/ U$ u+ C7 N1 y) o/ `; m& E3 G
# c( I* V) K$ n+ R' h5 {) a4 k0 a6 v" x! ?! X) W! p2 }$ y9 |: r2 E
ask customer [
; T8 `6 i% E7 o& k. @update-local-reputation
% ?4 E! b$ F3 }9 U+ e% ^set trade-record-current
! t" r8 j2 F( M, C2 J: t3 d2 `(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" L# E5 [9 ?1 C! D4 U0 }; Z9 a3 L]
& J7 |* j! D" L) C/ ~6 T; ]: N4 Y- y6 y
4 H3 X" X" I7 K* V2 { G# N9 Z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 g; p: Y& v o$ H+ T; b* q5 K
2 M; `: t& Y9 N7 X; y: h6 J3 Bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! H) |. v8 k4 W7 M9 v2 t
;;将此次交易的记录加入到customer的trade-record-all中
, t; U# _3 p5 Z8 }6 d% ?: {8 J( aend
" a0 j) h! `" g2 N5 I1 W3 T
& F- [9 t: }) j% O: O* rto update-local-reputation8 d$ a& K' @# Q! }* H& j' e
set [trade-record-one-len] of myself length [trade-record-one] of myself
: a5 u- I& {5 Z6 t4 g7 h% h4 E. Y. F* B6 w9 g
" j' L; g% Z: `1 J9 F; Z0 {: J
;;if [trade-record-one-len] of myself > 3 & |; @7 i8 }2 G# X! l3 O
update-neighbor-total! W# T4 m/ C! L5 `- ^- d- r
;;更新邻居节点的数目,在此进行
$ y- F) @" x4 S4 flet i 3
& H T/ E( |4 H: U5 Ulet sum-time 0, d' p# p! \ p# t( w o
while[i < [trade-record-one-len] of myself]
" _4 t h% W# y3 w) a2 k[+ h& O- e% M9 N v+ E& |& [9 l+ a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): r/ T9 j0 z8 G1 d/ I7 i
set i6 q, C0 L2 O1 L) w
( i + 1): q |# z; u( X( S7 |3 v
]7 k& N* x6 y' r4 @2 d
let j 3
+ o+ F8 o& t, J0 n) Wlet sum-money 0% [2 \! s8 L! \2 a4 k9 [2 m- M
while[j < [trade-record-one-len] of myself]
+ S( w$ D& c ]( L: e/ W[% L) ~, L: e5 E, j6 h" @9 @7 J
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)
' Z5 ]9 O0 l! k) p0 w# ^) `" {set j: Q' b; m% n6 p6 e- t
( j + 1)* [* g! @! _0 ^
] f) O! j: K* D5 G
let k 33 Z9 p3 r" h: `
let power 00 |% |! D$ f' a2 [1 K, o* o9 m0 W1 D. T
let local 0- C/ Q t/ S; f9 l9 g! X
while [k <[trade-record-one-len] of myself]- O, v; x+ J8 {; g& j) J( f7 {
[
0 q9 A+ U7 j; v, xset 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)
0 M0 F: [0 y$ t% X( Rset k (k + 1)
* K3 z5 ]% m. ?0 N" Y: s]7 y o0 o6 j5 V2 O0 |- m
set [local-reputation] of myself (local)
, l/ z- Z% Z$ F G- Z7 h9 A2 `end8 [" z! ~2 Z+ R" P/ ]
; T- ?- r% x$ f( y* q% H9 ^
to update-neighbor-total
: m5 X4 p8 L' v/ t9 }9 l
; R4 h& M- J# [7 J3 l4 T/ kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
0 ^1 D3 }0 f+ x
0 N5 H" |0 g4 m. D! I, X7 A9 \1 \/ @8 d* H: n
end
6 @6 L3 k& [4 r' Q
8 T* g0 U* D% Q, G L; t3 k4 Kto update-credibility-ijl
1 r; J3 J2 r- O7 }
, v! Q @- c* c( n- e. v;;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。
J1 i' e# B# v! U2 u5 u& q# Glet l 0* R* v% e D) h
while[ l < people ]
) t/ M5 f6 }% _7 y8 F- g;;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
, S9 ?, l% U/ D4 Q: p' s! ^# E[; G: }$ Z3 W5 [; T3 I
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% g' q+ b! _/ o$ S( e% I6 A: ~if (trade-record-one-j-l-len > 3)
4 \; u7 t" G. |! H7 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- k2 R0 E/ `$ N0 m: c/ l' H; m
let i 3
, V9 Z$ G9 Y) y; y4 Q4 `let sum-time 0
) t8 j" @2 a9 C a4 q9 Zwhile[i < trade-record-one-len]
2 R& I/ ` }- C[
+ m. Z3 d% S4 Xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ a/ K( e. o3 bset i
6 B8 \" o, M. p: v% x2 f: W D( i + 1)' T m) ?' O0 y% R S; b
]2 E9 e& ?$ y" ^# r4 H8 {( G( B
let credibility-i-j-l 0/ ]8 Q; N3 {$ s- M' c& T3 y
;;i评价(j对jl的评价)
% b3 E3 [( a9 ~let j 3) T; e+ a8 B$ E* z' y
let k 43 A8 p, p" w: p a( |2 ?3 J: H
while[j < trade-record-one-len]& W8 b( a5 ~# C
[8 P' H: i- L( R* q
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
9 h/ g8 ]5 T' ]8 ?& Eset 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 @ e$ }: s4 S" r9 w
set j
9 F! ]! [) h% L8 Q( j + 1)
. C' P& A* |- {]
# z( R" K1 v5 x1 q: mset [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 ))) T$ b. s0 K" v$ s+ Y6 @
; f$ [2 d3 z$ a7 S+ P4 `; q7 A
3 d& P& e( H" q: u* n$ _# O/ @: w' Z( ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ B8 e- w* k9 s. [1 X! i;;及时更新i对l的评价质量的评价2 T$ @6 ~0 _4 P* p
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& q. R/ q0 ?* `3 L oset l (l + 1)5 ?. d1 }) k, u- X) J* {
] r1 f- X; R( K7 s# B4 ?) v& U
end$ i" F- O% B0 J3 P$ P
: L3 |* {- M0 `2 n& s5 N
to update-credibility-list0 V4 _& B7 X) f; P* D
let i 09 l9 Z0 M7 q- c. l( T
while[i < people]
9 M- ~9 M+ h$ s& i$ e! i: \8 T7 q[
. k }4 x/ o. K3 m- ulet j 0/ t- m7 k3 D4 G& m& }% G
let note 02 ]0 X2 e" n( C
let k 0
/ F. O& t# E0 e' |) Z. [! R/ @;;计作出过评价的邻居节点的数目
% A+ c3 `4 I8 q8 \while[j < people]) M) P6 Q3 ?3 ?
[
. \1 C7 p1 ^% d8 R- u6 D$ F* Rif (item j( [credibility] of turtle (i + 1)) != -1)
2 k+ L. P% C4 k5 R% e;;判断是否给本turtle的评价质量做出过评价的节点! |% {5 |9 `* S: p2 A
[set note (note + item j ([credibility]of turtle (i + 1)))/ U; Y0 O. ^& @
;;*(exp (-(people - 2)))/(people - 2))]
+ ]% |) p; K2 M& L1 W: Yset k (k + 1)- V( G+ K% T8 {# V$ D
]$ M$ w+ F1 \' X9 K- M
set j (j + 1)5 H7 Z+ g/ k M0 W
]
% G! j4 h3 R) c K5 wset note (note *(exp (- (1 / k)))/ k)- M) H4 C8 Y& M! N' W( ^" t9 s
set credibility-list (replace-item i credibility-list note)& Y/ r, V2 F& H' V) r; |
set i (i + 1)
; F9 x1 ?* i6 h N' i1 S2 R]
8 }% ?6 l/ p! T8 k7 ?end3 Y ?! i+ i% W4 I7 y2 Q$ q4 h
0 a- Q5 P8 p0 F
to update-global-reputation-list- H* O. `1 K1 o4 o8 I
let j 0( }! j% Q9 v0 X" s5 u9 S
while[j < people]3 a. X- ~. ]: F: s1 o' }& w) \
[
2 u; ^: Z6 y8 m: f" i% `2 Mlet new 0
5 R+ v0 i/ q5 u5 M0 D8 D;;暂存新的一个全局声誉
# i) m" a( U5 r/ ]4 g; Xlet i 0
; ]9 P' G) i4 v/ H2 t1 _let sum-money 0
; j& Y' a/ P) |* Jlet credibility-money 0; A% Q1 r/ _4 W$ ]$ j: z% J
while [i < people]
, Z- Z+ E6 Q; u[
* ~9 l0 J$ j% r- y9 pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): Q# t' b5 w3 Z6 k! G% l! d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 Z- g& f5 f. ?6 X7 n4 [set i (i + 1)
' o! Q3 Q2 L6 F$ T+ a ?; A4 O% b]: d& M. [+ `- T1 D
let k 07 T& U$ u- n# k% v! ^" a* K
let new1 0: n6 z" o3 F' W- Q k# u/ E+ z
while [k < people]
8 t; o) e9 V& o+ ]1 `! Y& a. N[
7 t. Q" x! H+ e* M7 mset 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 w: }/ K9 T; M% d5 }
set k (k + 1)2 a7 V" F- W: m: ^- _ U9 x7 n
]+ z6 Q5 b( i* T# [! O& u! z+ _9 T
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 }' n: |: P# H* Bset global-reputation-list (replace-item j global-reputation-list new)
7 b% _1 n/ v+ _5 p) D$ {set j (j + 1)
" N$ @8 P/ R. {" h' h4 y: W! Q* w]! u: k a, f0 \' y. M
end( m1 l* d: @! m' L! ]
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to get-color
3 |& C8 a. B, L9 g
, K- a, N9 p6 Q3 N. D' K5 C. eset color blue
* d9 N4 [ z& oend
7 e5 j- d, S4 ?/ e! O( K
2 Y3 q3 l5 `; K. c4 v0 Mto poll-class
7 @9 ~9 v+ e% I1 v% @7 bend* G& e2 |1 j% B4 {$ _
) G6 X- M# C/ o$ sto setup-plot1. U- @) Z+ S& K4 X9 V* }3 [
B0 N, X x9 {" p: |+ d
set-current-plot "Trends-of-Local-reputation"
3 b" x/ G2 c( V3 T6 d, h8 w' k9 @5 m( n* ~" i
set-plot-x-range 0 xmax& P: e- S/ K, q
/ S V( x. I# }7 F4 Z0 Fset-plot-y-range 0.0 ymax
1 _8 D( E2 l' R& a: Z9 ~: J: u, I8 Pend
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# z/ B) r* w6 M, @4 m' x% Vto setup-plot2/ j1 S0 K5 \5 U3 f# ?, I
. W. j! l: t0 n! l
set-current-plot "Trends-of-global-reputation"
6 i1 \% t, \* ~3 k u& O5 M
( S( E" | O8 zset-plot-x-range 0 xmax
2 T5 M* Y F7 [1 U3 X6 z2 c0 P9 e @6 ]# R8 x2 j' Q; B B& Y; u) [
set-plot-y-range 0.0 ymax
7 @1 m# `: {: pend
" `5 s: h* ?# |& t3 Z `( r3 K& f5 Q7 D$ f9 u' f
to setup-plot36 }8 Z& g+ u8 d$ @
% k3 X V( ^/ Q8 V: ]8 jset-current-plot "Trends-of-credibility"
& m0 V; h, f9 u3 c: y+ i5 i# }- e! x7 T( ^9 z* v/ K( z$ ^
set-plot-x-range 0 xmax, \6 ] K! [8 t
+ U) k" o8 x8 z3 l+ ]
set-plot-y-range 0.0 ymax% g" m9 F$ [2 `7 `
end
+ W" {( X+ R: g, K- _* u) A7 A, z. E$ l' d
to do-plots
5 d: O% f' i; Z/ r4 P- J) zset-current-plot "Trends-of-Local-reputation". ]5 P5 j7 S" s6 e/ Y" O
set-current-plot-pen "Honest service"+ y7 T; I# l5 |3 z9 X: f
end
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6 I1 Y: e7 }8 w[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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