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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/ }& i5 }+ P/ `7 L% ?2 o2 @: O5 C
globals[6 }. o* L0 Y. R) Y8 D3 D
xmax3 e& P3 i3 ^/ v8 G
ymax
" u8 \4 g( e3 N3 j3 Bglobal-reputation-list" K0 ?# x( h; H$ f, ^+ R
' N' J M; p$ [) I- }. W;;每一个turtle的全局声誉都存在此LIST中/ }) f7 O" l, l7 W$ i
credibility-list* F1 h, Q2 ]0 e
;;每一个turtle的评价可信度
, M1 g6 P" g! V" N vhonest-service2 O5 R3 _3 X1 C- b+ V0 i4 i
unhonest-service
" k6 a, o8 M8 y8 _, y! U( o# foscillation0 r, I1 q* A/ b' e6 m
rand-dynamic
$ g1 F3 z2 q6 O' T7 h]
. \% F8 T, y# P. {$ @* V& w( m; ~- a4 ?4 I9 r
turtles-own[
3 B' F% q7 s, z% r; j0 ztrade-record-all: e; e/ W) N! Y4 h% @+ o
;;a list of lists,由trade-record-one组成- x2 O! `" \$ e& @& A; ^+ e
trade-record-one; \( v" i4 ?: [* Q: c# K
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. t: \' r# u$ V0 G/ }; o( u% g& b
5 _+ Q4 Q$ H9 W6 q* {
;;[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]]
& _7 ?# |1 ]6 S8 v7 S/ I& ?9 Q2 W0 ^) utrade-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]
4 z# ~7 W) Z0 fcredibility-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
2 c m, C/ V: c5 I- ~7 Yneighbor-total% J1 P4 b. {+ `+ i! C. j
;;记录该turtle的邻居节点的数目
2 a- q3 y- A, u# Ntrade-time" D7 ~# F: k! y1 u% [4 f6 l( X7 M4 i
;;当前发生交易的turtle的交易时间8 ?9 j4 Y4 h( j+ {; W. N1 t
appraise-give
3 E4 ~/ I* N) C: V8 C6 k;;当前发生交易时给出的评价7 ^8 m. B t3 r1 Q, {* V3 W' k7 D
appraise-receive
& |- [+ [) r/ ~$ P& u: Z;;当前发生交易时收到的评价
. N0 s, \/ S* r9 n" ]8 Cappraise-time% r' u |2 o6 L6 L4 W; O1 V% t0 U
;;当前发生交易时的评价时间
7 P) ^! w5 i6 G& H" {' W) @( blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉5 d2 A: E' f m! Z" Y0 Z
trade-times-total0 v. [1 x2 V+ j, {; j1 e& L
;;与当前turtle的交易总次数' W' z- Q4 y/ f. M, v, }0 Z3 Q
trade-money-total
* P0 \( _; [- D" @; n: B- A;;与当前turtle的交易总金额+ G" o* E+ {, m2 a I9 t
local-reputation0 G& s. h8 `. |2 d. n
global-reputation0 u3 P. Y s9 d# {
credibility
9 ^$ M8 u$ h2 @) y3 T' `;;评价可信度,每次交易后都需要更新
d3 F/ I2 }, m& `1 Zcredibility-all4 @# [8 E; T5 S1 G( Y% G5 F% K& ~
;;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 ]5 g2 ~0 m8 w$ G# l" X! F/ n& p, A2 [; P% A- t
;;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
/ d. J& c/ `' _credibility-one
# K1 Z, }# ^* d( M% _1 |! P# h;;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
$ W8 D1 Y8 G5 d! S" g8 P' C9 ?global-proportion- R# m5 X- {! \1 G) B
customer
7 i( }+ i3 Z: e8 Icustomer-no
. m9 j- e' J, ]" ^8 w! K% O7 Itrust-ok
5 h; \9 W% e+ Ztrade-record-one-len;;trade-record-one的长度
# K8 T7 {( ]/ n6 i9 \4 c]9 X/ O9 L4 S' b4 z# w9 B
* Q' t& x6 W& X) i- q B;;setup procedure! b, m$ @+ T7 m
4 X+ |2 e" h8 D q
to setup X7 K _- w; R
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ca' y: t" j/ H+ T7 d- J
, h$ l$ P8 `" }# {: M0 Zinitialize-settings( o/ |7 F& g( d7 R. d& S3 T
, j+ Y% G" D E" J' o' z
crt people [setup-turtles]
" ~7 U; t! \' b/ H
- n3 f8 ?( J' H$ i2 M( q$ s2 x' Jreset-timer8 S; j( {2 y+ J& I
' P# Q! [3 O3 Qpoll-class1 w; X1 k7 ?6 j5 ` H! o) J( r9 e) c( q
* h0 L9 s" y3 I0 k3 Asetup-plots- g5 s" C! Y- R) [6 h
: r. I- {- D9 D7 R! T3 x9 }do-plots- K: A. D! N8 v w
end
; m6 ?' m. L7 c( b5 U7 ?; _! k! H& X) B
to initialize-settings
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set global-reputation-list []
- U" o0 A2 U2 `( { h5 @' k" J, E1 X6 w! u4 T- |' b& H4 u4 [
set credibility-list n-values people [0.5]
' ]) u$ v2 ]) I. E
b2 U8 _: V( \; T3 Dset honest-service 0
' w+ L! Z3 ^2 W4 y7 K$ I% i' p: W! @, o5 e! F; k
set unhonest-service 0
" F" K! S. i2 P( P" v5 C. ^8 ]3 H R/ M3 p) w' W& t
set oscillation 0' T/ M9 t! P! u
- N; u# s n. F9 N
set rand-dynamic 0
/ A3 j, Z$ k5 p: E& Q- Z7 `" A) oend
& I# S9 p0 d5 i# A5 L+ b$ Y$ {, m. T, c) Z! @; Q6 t$ O- n0 W8 J
to setup-turtles ! ^: y. G; h( f. l
set shape "person"0 n' L/ C) u3 z! R
setxy random-xcor random-ycor! }7 W0 X/ t8 B. M, d
set trade-record-one []
) m+ | f. q ]/ n' d3 z% R
9 Y/ o! N+ F, x; e; `3 N1 a' Oset trade-record-all n-values people [(list (? + 1) 0 0)]
' v) h6 @ }5 X N) B4 ~0 K
/ I3 P! Y* \3 ?; Vset trade-record-current []- L% H9 o- ?/ B
set credibility-receive []
, t1 W# _* C5 n5 y9 l- v9 Bset local-reputation 0.5+ r* D9 F" W. d+ S$ r' U9 A! y
set neighbor-total 0! \8 ]2 i; C. R6 V, w
set trade-times-total 00 C1 e$ W2 f& p" {$ O8 s
set trade-money-total 0
% \7 e* a7 ]* a5 s' eset customer nobody
) ]: A# ]8 P% T4 Tset credibility-all n-values people [creat-credibility] M" i5 f0 N q0 b& A+ A
set credibility n-values people [-1]2 ? T7 a1 \! _
get-color
. h% s! N B! S$ t% P" \
9 i7 }, P" F* b0 J9 w# p# T) u, ~end5 b9 x5 e* c! D8 @4 ]' _, m+ c9 ?
/ Z8 O0 q! Q$ S0 \, I/ _; d3 H! kto-report creat-credibility
7 [# s1 D- x+ A" x/ A2 E' Creport n-values people [0.5]$ @' ~/ |! w* x! ~/ K% Y+ [
end
, M3 N7 @% n& z6 M+ ?, J& {0 F
' p, p% e* L/ lto setup-plots6 U5 c# F4 z- l3 k `. v
1 z9 h& h4 G3 v
set xmax 30, d' h# u0 k4 h- W& Q" Z# X
) }1 k9 n+ B7 E0 f
set ymax 1.02 e( D, q7 r! t0 }' @. v$ J' _
: s7 B. ] w% o! T8 @: @
clear-all-plots
7 D" K$ R! m# n& a* S
0 ^1 F$ S& g3 G' j' n$ {' {setup-plot1
2 |/ X# h; V+ z3 c3 i$ v
& b: n% n' U, h8 e+ x' H8 ssetup-plot2% i. \8 A: u8 e/ P
5 d; u8 y o7 o" {. ~' p0 W$ qsetup-plot33 |5 f+ P3 n$ P/ y" w" _
end
" v; b' `5 o' {; l m! V$ A6 \ {7 P$ c' Y+ e# {
;;run time procedures
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, I2 Y/ S1 V% C4 k' eto go3 z' e" ~! J7 H
, p9 h n u2 s# Z9 I9 Xask turtles [do-business]( Z# S2 D* C4 _' } ~
end3 ^9 {- ?1 h- r: z" @' q
) V4 V, }- c4 t0 b N! ^
to do-business : z) o9 t# b6 Q. n
8 R6 h: N% q3 y
! @: j7 D4 ~- d' _rt random 360
R% o! d* J+ e/ S, [- c% M! c+ k o1 w0 b1 l9 ?
fd 1
; k! K3 C* v4 X2 k! p$ g5 E' l- F9 R* C# Z: l
ifelse(other turtles-here != nobody)[
/ i! f2 A0 B+ N8 n- g/ Z1 e& P d. ?$ z" c: k' k
set customer one-of other turtles-here
+ O9 C) [; B# |) N ~5 T/ U5 k' K3 I! j: f. }1 m: h$ O6 J3 r
;; set [customer] of customer myself
2 @! U9 h. \' {* O0 E6 m+ S. f- v3 }
! s5 E* S# z1 jset [trade-record-one] of self item (([who] of customer) - 1) [4 S7 S7 \* {: X) I) z
[trade-record-all]of self/ G5 M5 u8 @2 b$ u. N7 \3 P" p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 N" M2 a, F# R" W5 A
( w, }' s; K ]; O8 Iset [trade-record-one] of customer item (([who] of self) - 1)
8 m+ h4 h' U$ S4 w[trade-record-all]of customer( |4 u% }( |' j/ x, S4 @$ J8 Q. a: z
2 A8 M: K$ j6 ]* ?3 d, C
set [trade-record-one-len] of self length [trade-record-one] of self
5 d& M: q9 Y* K \7 d. B$ Z2 p
0 \' y5 }6 U+ ?% [- p) M5 l; x, kset trade-record-current( list (timer) (random money-upper-limit))4 z, S$ Y6 q7 S! [
v5 b7 Q; E3 ` v1 K' Yask self [do-trust]" }0 z0 b+ ?2 S# E: |* a( g' J- B
;;先求i对j的信任度, h3 s) c% D( H! R
, x0 |4 I4 ` }6 r: E% a) }if ([trust-ok] of self)! B8 y0 `/ T f+ h
;;根据i对j的信任度来决定是否与j进行交易[
T& N, |- G9 |; qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
; E7 t2 ~4 N% f6 n: Z) B* @! \ q4 w( H- M, L
[" s7 [, }+ U% ?4 a) t o
5 O0 G5 K; [2 K8 a: i
do-trade
" M* d! Y- n# b6 v+ a+ x1 k4 T; Y+ `* c' ], U
update-credibility-ijl
& H: E1 ]* | E9 r
* {5 l+ v( h; ?5 F$ ~update-credibility-list, Q: |# ~% L$ n$ i' i) Y- ~6 a
6 o$ f: `' T! J! B; h
) r0 H* |* u! u* X0 Q
update-global-reputation-list
2 f* O9 }2 g. g. y- h
( B& q6 M& m( `7 r9 B; N9 K) ]7 lpoll-class
2 ^* S: m. A* y- L8 ]
( P9 s+ a& E& i, uget-color
\- `) A9 h4 U& u7 J: }/ P( j4 I/ O( X p1 j" e# @# v3 _0 n
]]
- V# E- `; ]- a# G4 V8 C+ f, B, G( h4 {) x
;;如果所得的信任度满足条件,则进行交易
+ J' J( \0 p$ P* D& z. z% T
4 M( C: [; N8 E3 |1 P5 Z[
2 C1 S+ E: C, k: z
/ }3 H. _/ c* q' Rrt random 360" ]6 C# c Z% X6 p/ w$ B
7 i7 o0 ` e( ?" h' _* C. Dfd 1, o% ]* [! n `. f
2 ^9 P6 _+ ]: M) s# t4 O) @]5 e8 z( H( z& n) p
! q- ~, v3 ~4 O1 {5 Vend1 q& M/ Q: t! U' i: g1 e$ F
! x: u7 G( U! u( k% {to do-trust
- P- ^! w" x- T. T2 iset trust-ok False
0 |8 |7 u" a; e" j9 Q4 E5 N, @: P: F; d9 q7 I9 m' p! `2 _
& s* B1 _9 L' M& A
let max-trade-times 04 w E, }2 `* J r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' c, Z9 @% o# Z! llet max-trade-money 0' U* ^5 N" W% ~3 K6 n" O' G, F6 k
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" U% Q( U0 v' F9 @
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) `. ~1 T; W3 e& x0 B& ~4 T& s6 b8 I' z; A
0 P' V' Z' a9 P& k. lget-global-proportion
* S9 h) C& l( B' E+ Alet trust-value
* A( G7 ]9 Q6 }' O1 F* Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
; x2 k/ P. G7 b% Yif(trust-value > trade-trust-value)
7 x- X" b' f7 P7 t# b% e4 B: V[set trust-ok true]6 d5 v9 C: @% r) ~: U/ K& W) t
end
" X' ^2 V b# i" b, \! X b: _0 S( f8 p5 n$ v' T& Z! Z
to get-global-proportion# T4 q! j' [; ]4 }. w
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 P J: x$ t6 Q6 B: x _[set global-proportion 0]# ]# K3 _; h8 G9 u. H
[let i 02 r: Q* ~8 O2 v5 M8 d3 }
let sum-money 0
- c5 A3 S3 h! b& Kwhile[ i < people]- z! G. g' q2 w4 R a# I! a3 b/ G
[
9 e _+ Z: b/ l: l nif( length (item i
$ F m8 U5 Z0 D2 ?6 {# G$ n3 p3 Z[trade-record-all] of customer) > 3 )& i) n: u4 j/ Z* X5 Z0 i! I
[$ b: _3 n% W" l& x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)): t( s' P! X7 X0 A( ]
]
. p9 X) b5 c0 W9 X' S- @ g], C( O" l, F1 J* l" X4 f: {
let j 09 b9 T2 F& S& s# H) I5 B
let note 02 k; Z- M& H H; k0 u. i/ H
while[ j < people]
8 g9 @ K' x+ Y B7 o+ g- f- s[2 W9 B* u% Z j/ R& |9 e) b9 y" d* m
if( length (item i
% `# F2 f# x# V8 J[trade-record-all] of customer) > 3 )
7 O1 m2 H8 L& M) O* X4 \[ D$ M, z( r5 u- M. r" t
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 [; k9 a3 [1 a7 B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 t3 j$ h9 E0 U; U# p6 t[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( _4 R7 C- W$ K! j& c, D# x' H/ j
]' Y) z4 c7 P! x1 }
]
, F" \& I4 K8 c9 Lset global-proportion note* C' @% ^ d; ^! ~' H* T7 D1 ]
]
5 @. Z Q: I3 g; Y, Pend$ V& r b1 a2 j! [
- s4 G3 l3 g" Z4 |2 p) Xto do-trade' i+ a% l! g' u' O/ E
;;这个过程实际上是给双方作出评价的过程
% v R5 ?+ _+ C) ?5 Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( I m4 _* x/ q6 S6 }! n' t, s! m p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( Y$ w% C+ R8 o
set trade-record-current lput(timer) trade-record-current$ }3 f* o$ d: O% h' N. I, G
;;评价时间
8 h; }4 M6 U7 J+ [8 q1 A* n' l( ^ask myself [
8 N4 h- \' O# z2 h2 jupdate-local-reputation: o D2 A" B/ }( M
set trade-record-current lput([local-reputation] of myself) trade-record-current
; e) h5 X4 }* K3 {/ [6 A+ y]
7 P, v C2 J( Uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 g0 r& S; }6 m: a3 T+ n* h8 B' r
;;将此次交易的记录加入到trade-record-one中4 M6 U6 ]5 Y' a# @- n7 E2 C8 i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 a) _5 a, }: S+ J
let note (item 2 trade-record-current )- d }: k/ o4 @
set trade-record-current; h/ @8 ]- G* A% y5 Y* k! ~
(replace-item 2 trade-record-current (item 3 trade-record-current))
' U1 \/ S% M0 w9 L& l: k) ~' Oset trade-record-current% f9 A; K& c/ W% I0 Z; M0 e$ ~. D# H
(replace-item 3 trade-record-current note)1 c) Z2 n& j# g# `% @8 p8 w
5 w$ V& n% G3 {0 o, k
5 P6 U% S7 T( \8 U5 pask customer [
; L5 d! P/ j. \- o* d( ?4 N( H" y, Gupdate-local-reputation
6 p8 v; s$ b2 R# @set trade-record-current
9 E' p" U4 S/ R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 l6 \5 D9 Y) v9 I" H
]% Y* p. M' i# Y* |4 ]& N7 h
8 @* ~6 U3 Z3 Z( m$ r2 }
4 U B$ J8 W7 K$ I# _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! p L0 \7 b3 W. z8 u6 u) X4 P( y
. `# U. r# ?2 dset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). l7 }( w2 u3 c: h% m$ l- n# H0 t$ G' z
;;将此次交易的记录加入到customer的trade-record-all中* F# _4 n/ i6 k$ X
end& b/ g, f0 _' t4 `
. y* f# H p* c g. F3 @
to update-local-reputation4 z/ W: i0 D7 k; {6 v. ~( J
set [trade-record-one-len] of myself length [trade-record-one] of myself
) b$ Y+ N" d: S
" O4 R+ O- r O: L) H7 f2 e0 ^8 Q+ f
;;if [trade-record-one-len] of myself > 3
; G/ X6 J' E7 u* f2 @; j+ c; Nupdate-neighbor-total+ {* H1 F5 O0 w# R) j; e
;;更新邻居节点的数目,在此进行9 q; r4 F, m! z) P
let i 3
0 K, M4 K$ e" _3 |2 |7 x% f( ], Rlet sum-time 0
+ V9 O9 w) N* q" G& u, ^while[i < [trade-record-one-len] of myself]! h- N3 V$ r1 _
[
r; A- d9 {1 s/ \# Q; Yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 D7 \8 }& s1 N& b f' X8 Bset i8 r: k$ d+ h3 o$ R1 F, g6 q! \
( i + 1)
+ n. p3 O# i5 o- A" ^* S]
+ z0 Z/ e: r! t& o) @) d# slet j 3* [; u( B* O: b$ O
let sum-money 0
/ X+ p( \0 Q7 q0 uwhile[j < [trade-record-one-len] of myself]3 n" | A" a1 ^% ]& t
[: m+ |/ L; L5 i" R' B9 d
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)
9 y3 W3 d) Q2 P! g; m6 Y4 b& tset j
. ?7 L2 d: f+ S8 c& e$ D3 [( j + 1)
8 V. F% y4 o# N5 {]
$ n1 P1 }. [" J8 y7 b) b# Clet k 3* \7 p+ l! J2 ^
let power 0
$ w" q* ~6 G$ k$ Z1 a6 P7 C2 Ylet local 0
# ]+ u1 a$ {; u$ pwhile [k <[trade-record-one-len] of myself] t( C0 l, s& \3 J9 ^
[
6 B4 N2 a: I: T+ I2 }4 p" Aset 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 Y3 T8 [4 Y2 W: @' [set k (k + 1)
% q5 i9 l- s5 ?]; q. {3 B) `1 y9 ~3 F3 s1 B
set [local-reputation] of myself (local)
) R( p* {$ A) T; {# E+ T. |3 Iend7 f0 f1 a; M m& U% z3 I
4 ^" f/ o: i4 L3 X9 m6 Z9 s& a) Q7 m8 wto update-neighbor-total' ~/ G3 Z3 q9 ]6 |9 w- Q. w
6 {$ z! a- g4 x; d1 @if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; d- M0 S& ^1 F
0 p; n0 u9 M5 |; u: x* o+ N0 }( S$ C; i/ H
end
1 \+ p o0 q1 l1 O5 I, i
4 ]3 t6 l# @/ M: P2 q C$ n1 O3 dto update-credibility-ijl ! {) H. S8 [7 i' N) }8 x% H, X, }
' R Y- j) t! F/ [- a& {. I/ K;;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。7 H0 |4 Y& \( Q/ b9 q
let l 0
* K0 |1 u, N" r6 ?5 C; _1 Kwhile[ l < people ]4 m( t5 O4 X; Y% c% H( h/ i
;;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
: Z' h( J+ _# }! Y$ t L, t[
# m1 I9 d& `8 b* Z3 C* @) ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 H, W, [ U* d' n5 vif (trade-record-one-j-l-len > 3)5 ]) v% S V% r% F* W* i
[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/ Q3 w/ J5 A0 n
let i 3) P5 [1 E& |2 M0 H$ M# {5 z
let sum-time 0& I/ f6 F. M0 D) f
while[i < trade-record-one-len]/ {1 A! t& L. Q
[
6 }- G; \' W3 iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 P4 t& V; U. y) P7 V: S! m, E$ j" p
set i+ [5 \0 T$ t# N. r
( i + 1)! Q( y8 I. e9 S0 y# T
]
8 r! R& j5 [$ V" }let credibility-i-j-l 0) a5 r) [4 x0 w0 H* d
;;i评价(j对jl的评价); Y& `' M) O. d! D! V
let j 3
/ G" G. D7 F+ y$ }; zlet k 4! X" W# C* c4 u: w1 O
while[j < trade-record-one-len]6 q# r" Y0 `8 G8 v# N4 s
[
2 i7 W: m1 W& U; T$ K$ r2 ]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
; d3 O% D/ B3 m7 nset 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)
2 q" L, [/ u4 q- C. e2 m& j6 O- [set j
* A g1 }7 [* u( j + 1)6 ~5 w, H/ G! l8 P& ?/ Y8 r' m$ c! k* ?
]1 ?& k$ e1 h- ]% L7 _0 Y0 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 ))! @9 ~( R" |5 t" r
4 Z0 K p' n9 o9 ?+ [
6 q& a7 ]. v6 \( w+ t1 {1 g: c$ Flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 n: E) o% A# C
;;及时更新i对l的评价质量的评价
1 ]! F) x. C4 ?5 _3 Sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] P; K: _5 O: R, a$ ~5 Q2 @8 {. M( H
set l (l + 1)
* s. n2 S2 N* H4 m" W+ P]
# ], S5 B5 x* n! V2 U+ qend
/ l' P/ n: }- }' G. Q7 w* l r% k1 v8 i# w8 I
to update-credibility-list+ Q# B( X3 j6 o! G0 E y, K
let i 0
4 Z8 H' H# P5 y: Zwhile[i < people]5 D4 N c& ? U1 D! t( J& C0 h5 g
[. ?9 k1 i6 s/ N. X5 s0 W
let j 0
6 c2 _$ K6 w: j2 d8 ? t% l( elet note 08 p( M1 {* ^; W9 S* s
let k 0: C8 Q& E2 F; @! f8 _. n
;;计作出过评价的邻居节点的数目
/ p4 I" H3 F7 e; B- J7 t @while[j < people]% Z1 h. G J8 E- Z
[
5 M5 Y) z Z5 b( C. `if (item j( [credibility] of turtle (i + 1)) != -1)
9 V" o0 S6 S, l: ?, g% m! `$ [;;判断是否给本turtle的评价质量做出过评价的节点' `1 R) X0 V! J5 q) m3 Q5 @8 s$ c
[set note (note + item j ([credibility]of turtle (i + 1)))8 L& w) l1 N3 n5 T
;;*(exp (-(people - 2)))/(people - 2))]8 W' v3 q; @( d7 ]
set k (k + 1)
% V+ [8 c: ^2 w) z]" J1 ?2 \3 h& N2 K, l, L H7 ?
set j (j + 1)
0 ]( b. v; B4 B1 G]
# Q4 p1 A. @/ `; y0 C m% Kset note (note *(exp (- (1 / k)))/ k)
" c3 e3 q, O1 h$ aset credibility-list (replace-item i credibility-list note)
\7 L+ @: g3 d; G5 Q, g/ mset i (i + 1)# t+ i3 m" V( @& S9 _* X- f
]" N v4 U# r3 h
end
. H4 A: `0 _) g5 Z/ G- d& f3 T" A4 }* z
to update-global-reputation-list3 X6 c; D3 i: T7 T
let j 0
3 h& l; D- J; n7 D( lwhile[j < people]
6 [: v# p. Y9 h: n1 R( z0 r; W9 ~[& J N0 T: N2 Y+ T0 F! T+ o& I/ w
let new 0
$ _- j$ P0 |% H2 }, ^;;暂存新的一个全局声誉
6 L# h: G+ W2 @7 c3 flet i 0; k8 k4 H9 q5 E: R6 f" u3 ~* W
let sum-money 0+ R. U* T8 R" s; K# ^& O% s
let credibility-money 0
' z4 ]! y$ j7 b: B. _6 Ywhile [i < people]
: ]5 T1 F' w7 ~8 p7 p$ C/ b[2 q# D8 y7 T% U2 J1 G
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' Z+ n4 T, S# @) U3 wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 d p U& c/ c( a8 @" q9 @( N' iset i (i + 1)
% M) t, |8 k3 d]5 b6 I$ i3 v+ t3 ~) ~$ ]3 P- |
let k 0% |/ F' \ `3 V. ~' E9 q- {& q4 b$ S0 g
let new1 01 i% n: x, Y8 }9 I3 j$ h2 O6 u [+ W
while [k < people]/ j8 ]/ d4 _* k4 L
[
9 F0 r1 O, |5 O7 s1 C7 pset 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)
+ N: l: j5 W% Q0 cset k (k + 1)
% b. y+ r" u& G" R3 ?$ K]3 O* \- o! C7 l3 D4 f3 D3 P! ]; K
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 j- ^0 P2 }1 c* R- }set global-reputation-list (replace-item j global-reputation-list new)
/ l5 C3 G8 i& R/ Uset j (j + 1)1 j7 m! s; b. N% T
]
z) B# L+ g1 [' I% S( T/ oend5 L" B* S. s/ v/ g; }
; [8 q, y) |9 b+ R3 s! c6 M$ a- c; D
+ B1 e9 A' E* ]! u* ^
& ~1 X7 Z0 [ |$ F1 L
to get-color
z& {0 V# d& Q$ R# @$ U/ O0 T+ B' Z
. i* `* k" g0 g7 Dset color blue
% g; ]8 N2 P' z' Q: i, I5 \end
. H- r- i' W; \$ i6 A5 K% `
; C6 v: [4 p' p9 Z& l* pto poll-class7 s! p( f8 i% u G. ^$ O
end
+ a) h/ H) K- i/ H8 H5 d' \' C* ?: [" s" c9 m7 C: R
to setup-plot1) N: \2 E( b% {/ Z; g! P: @
4 D1 p% j$ C& B7 X# N: U! e6 _set-current-plot "Trends-of-Local-reputation"
1 D" s/ I# z$ N* {% ?
9 r, z0 o: e( p. a" q' wset-plot-x-range 0 xmax
/ q4 I( f; @6 c y' J) j
" R8 E" @+ I( i4 z4 nset-plot-y-range 0.0 ymax/ h* [# B; B8 Z! G+ g
end) O& g9 P p* H N) f! v, ~
. v C3 |* i9 l* A# z9 |% bto setup-plot2" r& H" t% k4 P
) t* C$ q. h! V9 ]# Aset-current-plot "Trends-of-global-reputation"
3 `2 _( Z3 Q0 L) W5 u6 B; h
9 x6 G$ g6 X' \1 iset-plot-x-range 0 xmax
& W& B" K- v" E$ N
( v! E& j) I" v# s+ vset-plot-y-range 0.0 ymax
) K, @0 _9 W9 P( z y& ?- Kend
, V9 S# {9 X% F1 p7 u- ~1 c/ O4 ]) c+ [' O
to setup-plot3
7 `2 F8 w/ F0 _7 f3 k2 Y/ d! g4 L3 v9 L' ~' j
set-current-plot "Trends-of-credibility": C1 r$ @% _, ^' {+ |: i
6 k+ g( f8 R+ f W4 \0 h% \& M, e
set-plot-x-range 0 xmax+ O0 e) k! @0 |5 ]1 h
2 m$ y8 t' y1 T" `3 }! _' F" Gset-plot-y-range 0.0 ymax# c: z1 h) j' \4 V; ~
end% Y( c# O9 C; [! ?6 d6 R X
+ p# m) O( s F3 k% q2 e
to do-plots: u, ~6 w1 X' v( r0 X) C/ c
set-current-plot "Trends-of-Local-reputation"
4 \5 G+ u% I5 E/ l" a8 rset-current-plot-pen "Honest service"$ G# I$ s& Q, x- U
end; ]- E) Q, h, {, p9 M
! A5 a6 m4 L' X4 |' q' E[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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