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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4 K, b, J: [2 \$ l9 I8 h# d* C3 H
globals[! i$ P: [7 b3 S. l1 V W+ M/ _$ C
xmax
: v& g) W- C! ] q, fymax
7 P6 G" m: G4 c! C7 jglobal-reputation-list9 l5 U" p$ C& S! t5 ~
9 ^' W- ~& O6 [2 M;;每一个turtle的全局声誉都存在此LIST中
* C/ U: O. f) w, o0 |: `credibility-list
- g# S) e- L5 [. P" v;;每一个turtle的评价可信度/ f" A7 N4 ~0 Q, y9 n; u b
honest-service6 x# I0 _! d& O# q, O$ u9 P' h$ R+ g
unhonest-service: T2 O. n3 E) X7 `/ [8 ? z
oscillation. X! q/ R/ t' ]7 U4 _4 E& w& Z- h- o
rand-dynamic5 K+ \/ c0 N8 Q/ z6 p9 d
]8 V) q. x& C3 Z3 D; F" q w! k
3 Z5 D( @# v" |0 K& H: ^/ d8 \, e J; [turtles-own[
' n1 F4 ^: `4 d! qtrade-record-all; o4 A+ [- x! S$ p$ \
;;a list of lists,由trade-record-one组成
: J4 b A. z8 a0 z- strade-record-one" } A: w) D- D2 r- _% m& @ ?( a) B7 v
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 k( x% f2 j/ Z+ u/ o" d& a
& |/ a: z! G, |8 x+ x5 h' 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]]
4 s% k8 U; j6 }2 X+ _( Xtrade-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]0 u8 n; y+ `8 P# o6 a3 Y
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
' ~ T0 ?) V+ v3 L0 qneighbor-total
) s1 ]5 J$ X* n$ U& Q) d;;记录该turtle的邻居节点的数目
5 v# w& z# Y" R0 Strade-time
6 X7 K7 Y; |8 X" @;;当前发生交易的turtle的交易时间: `5 T4 ?" o. R% C4 N5 }
appraise-give) z8 G4 g, X6 {& u
;;当前发生交易时给出的评价
* K. ?! v/ Z% Q0 fappraise-receive3 v/ U$ f, v6 n( B1 f% N% K% \
;;当前发生交易时收到的评价! e+ w( Y* N) n$ N. t
appraise-time+ A: ]$ Q+ e3 {6 k( d
;;当前发生交易时的评价时间; A: V# n+ D; i. t
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 l- S& o0 H3 ^6 Otrade-times-total& S3 }- @' c+ j7 T- N
;;与当前turtle的交易总次数/ V" m! \8 |2 d
trade-money-total
& w; l9 [) m* Y+ C, t$ x;;与当前turtle的交易总金额, o$ a* M) p, R7 N6 |
local-reputation
! p3 T ^% H/ I! P$ R( M% N5 wglobal-reputation5 R" _+ A4 T% ]: f* `3 \) c
credibility0 @6 R$ l1 e4 U/ f- l2 q: H
;;评价可信度,每次交易后都需要更新
! j8 m' N# |" Dcredibility-all8 h! N. z- n1 n/ F5 ?5 P
;;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
1 k5 V* F1 q, r& t/ V, S2 g' j) I6 A4 Q" |* I* E# {
;;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
" C% B% o$ S# ^credibility-one# T( Q( c9 a+ j0 L0 E6 o
;;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7 x# S( v: r; \& h' l2 g L7 F
global-proportion1 e. B+ u3 ]/ n7 w5 {
customer3 _0 f4 \; E1 t% d( R# k
customer-no* A6 Q6 \; H" j
trust-ok4 a, T% v, k# G/ V
trade-record-one-len;;trade-record-one的长度
# u4 s2 j" \! r* _& Z]$ k( T$ l: V+ Y2 C G) m
( ^1 m% t( O2 i! _/ W8 T% K! R! \* U
;;setup procedure2 e' V8 u& A6 \2 [; C t! o" H) I
1 g8 y4 c; L0 X. _/ L9 hto setup& N- K- [4 W9 _: g2 f( w( d
$ F4 c: |3 ?6 \/ T9 Lca
: y- T1 a! l, o/ `% B; K' K& _
/ J; ]4 X# O, ]0 Z2 ^2 Uinitialize-settings3 M' i5 _" K N0 A
, W$ C! O2 B3 |8 V8 _$ k4 u* H6 {8 h
crt people [setup-turtles]
, v6 [# w# ~; ~2 m. i
) T, n1 H( k8 `9 j! Y* D" J7 g9 F, Yreset-timer9 }0 G/ f. a# u# d* Y# S" g
7 P$ F6 S( P1 D, |6 h! t5 Q' cpoll-class
2 `- q$ m% j8 B% K, i; e5 H2 d2 V) R3 o [
setup-plots
, u$ B& I; F9 s0 e: r v3 M) X8 `& E! v" n5 d/ u
do-plots
. Y0 r) I: I9 O& w0 hend9 v7 c7 F% M1 U$ G# W
) J$ n y6 P# G m2 J. G" @$ t4 Nto initialize-settings# h. x; j1 b- q! e/ ]% T; S
( f) B$ s6 X8 c3 N w# X
set global-reputation-list []: G8 {- k& A4 n+ | \
# r; K7 w1 a; l% |5 X1 K( t
set credibility-list n-values people [0.5]) Q1 u f+ C- `
' S3 U; x- |3 k ^2 m7 L1 Hset honest-service 0
& \/ ]/ \3 k5 u& M8 {' g \" U; \9 {
2 w/ j0 z9 l, |* d9 k, n1 hset unhonest-service 0
- k: H) b: z, @& {9 R! e$ ?# q) T% `7 e
set oscillation 02 i: U2 ]% e. z9 V( k. U# F
* _+ _: [3 {6 N7 [set rand-dynamic 0
R; ^& Q/ T8 |2 i2 yend
7 ~0 e* Y6 N9 ~2 Q, L: L) m; {9 C6 g' q
to setup-turtles
5 d8 a R6 }# L& yset shape "person"; J% p; W* b" ` |6 e; M0 o, W
setxy random-xcor random-ycor
@6 t+ B+ v9 u5 P& V3 E: xset trade-record-one []
: u5 s$ Q4 _, s$ x
4 L& u/ e. D7 ~ n+ }set trade-record-all n-values people [(list (? + 1) 0 0)]
9 |% K% R4 u- l3 _, x3 a! Y5 ]7 Y
4 u, _1 y1 _& R1 V1 Z& J5 Uset trade-record-current []2 a* q- f% }: I' q
set credibility-receive []
+ }$ T$ }, {8 a" _set local-reputation 0.5
7 T# L& c1 f! x7 h2 iset neighbor-total 0/ l& Z! X. J9 Q1 K [
set trade-times-total 0
0 I( [7 t+ \9 T' I$ p% u- m$ y& Cset trade-money-total 0
! i% [8 N: G4 T# N% `( ]8 qset customer nobody
( L2 `1 G9 F0 Z7 F0 g/ P" Xset credibility-all n-values people [creat-credibility]# G, v l4 t8 k. z
set credibility n-values people [-1]& a/ m: C5 g' A5 o: n0 q2 f( |2 R
get-color
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2 F' t J O$ T+ O9 `# Wend
6 I+ R/ P+ f( S. W! D: E
2 }( ^ k/ y7 U- jto-report creat-credibility
1 [" g# t/ E% creport n-values people [0.5], ^+ r: O5 G& z" j/ w) P; I
end
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to setup-plots9 v) A @- x$ j' f9 W" O/ _
m ^' `9 T8 \; a. O) i
set xmax 301 S" k& A K S F- S2 q; {
! o+ D# K$ O8 u$ @6 [0 `set ymax 1.0
7 n( `1 H) L7 w* e2 ]
) t1 u4 K- M( g- b7 `% b0 Kclear-all-plots/ D* N0 L3 a* X U* h" P
( H [. D4 j2 S6 Y' o5 |
setup-plot1
( l' b* m7 l" A! Y Z' {0 I
2 v1 ~$ F4 o$ X0 p6 [' jsetup-plot24 E# G! P3 ^! |
5 Q( n3 l2 \7 r" u- ~setup-plot3
1 P8 H/ p# f" M% Y+ _4 e8 m ?end. C0 l! [; {! o9 o) x- O, k
) b3 J4 r. U0 T5 K3 a6 ?3 Z
;;run time procedures
3 I" J; [8 J0 b L; Y0 f" ?) @$ q/ {+ c2 n; G w% ]
to go
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' E7 z. G1 y$ nask turtles [do-business]& [/ ]+ E5 r$ O: i. ~* a" X+ u
end8 I1 n' y/ N7 Q, ]8 a7 L
6 x- z( ?8 R7 z& R! q4 O J- M& sto do-business
0 O, | L9 P# S0 }4 g f! B: s) P- x( {: |4 [9 F
- Y1 v, N4 l( G7 Z7 U2 brt random 360( m1 _0 A: y& P: F1 D, s3 C
! t# w* o( _/ p8 t- J, D
fd 17 A: _1 e: X3 ]. |5 q$ F
; f; b6 m0 e- Lifelse(other turtles-here != nobody)[
5 r4 l. s9 z4 T
Y& S5 Y- E* `5 Dset customer one-of other turtles-here
4 E3 L' I# A- @) ? x* j* S: ]
; S% h n Y; e$ A2 `;; set [customer] of customer myself: s9 d- n# D3 H% Z
, a+ f, T: r4 r' ]/ K, [
set [trade-record-one] of self item (([who] of customer) - 1)
/ V5 t1 e+ M! ~. t[trade-record-all]of self
3 R+ E2 ~7 q- u. ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 U0 s/ u! M0 E- p( s
* `9 d$ G7 V2 }; i9 \) oset [trade-record-one] of customer item (([who] of self) - 1)4 L7 r$ e: u, f+ i; l: [9 i) M' d+ k
[trade-record-all]of customer3 u, P4 @: r$ I8 ?" {9 _
- } z/ d( k, x0 Gset [trade-record-one-len] of self length [trade-record-one] of self
/ W2 I- Y; f3 K* H0 r9 a. v
2 u* m- L8 n9 Q" Cset trade-record-current( list (timer) (random money-upper-limit))
+ T1 ~% l# a) [& b, [0 D) g- x& w" ]
! d- e: t; o" X6 l5 L/ eask self [do-trust]
. f. R# U: {& @/ |;;先求i对j的信任度
4 z {6 @- q# f
: M. V. p1 m. H7 I5 J9 oif ([trust-ok] of self)
$ ]$ v6 J, a \+ u& K% k2 r;;根据i对j的信任度来决定是否与j进行交易[
* ^& n; j" @0 Yask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
' f% t- i2 h+ T) U' L/ D) L0 e- C4 d( ?
[
. W) u6 X# ?" R5 A9 s1 P: Q6 y+ M) o
do-trade
1 `; |4 p# `0 M6 Z
6 ?- }! q/ D/ u0 Eupdate-credibility-ijl
" y* {3 b; Y5 S4 C3 [- b, r9 [8 r6 {1 C/ Y( f+ S0 R
update-credibility-list$ e) u# D$ ^4 b: Y) G& v
: c1 h, o# l7 E/ j% B _
8 a; @# Y5 w3 q" C$ V. w3 aupdate-global-reputation-list
/ [' u* G. h3 z: d$ _2 G) A! g
/ v0 |* s7 i* p$ E& m; [poll-class
* G" @3 R! d) y. \* V7 a F
6 H4 h6 l& b6 H$ P* r) J& D% X9 Yget-color
3 L; `+ | c; Q: ~4 V+ q
7 G; N& s# O, ^ i]]
' _# @3 O9 b+ a; t& M/ f- d7 o. e3 E+ O# j
;;如果所得的信任度满足条件,则进行交易! q9 m: J/ ]( t. j
4 t/ l8 V1 O+ c. ]
[
8 f/ l F# ~$ h& i |
$ ~3 F; k" d" P$ Frt random 360% J \' Q6 B: |+ g. h$ I
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fd 1
% E, ~+ R y4 |# H; X, r
* s1 ?$ ]; i& C( I# i]
. r( m w9 x6 @% N! W0 {
7 u8 L3 K1 t6 m1 t6 S# Rend+ |6 l. \/ p9 h' Q. ?
1 H: A1 x7 x# _# mto do-trust
! s) _( W: {- ~set trust-ok False
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! G, v+ E7 p3 I
let max-trade-times 0$ m2 K9 Z3 t) t
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ ^: u' @' r, H( _8 p
let max-trade-money 0
3 x9 u) m+ f6 ]0 rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 C2 x- H1 {/ F5 {/ W& j7 ]let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 V+ k( _; F8 C& k% S' @9 @. K/ ]; ^8 f) }) I$ Y6 B# Y6 r7 u2 w! u
, i# p- W S) [( O# Cget-global-proportion
: Q) n7 o d, Wlet trust-value2 y$ v' p2 t% Y2 q$ M
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)
1 k) g: c! s' M& \if(trust-value > trade-trust-value)
% x6 T& B/ k* k$ u; [/ z[set trust-ok true]- J( y4 Q% T) z: j2 @
end; E3 c6 Y/ q: |8 z7 I# x
1 v1 z2 O9 @: l3 ]; g
to get-global-proportion1 ^1 r( U9 r: U# P
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 j* \3 B. R2 Q9 `[set global-proportion 0]
# k+ ?! ~; f9 i7 y9 H# i, E[let i 04 I' P+ U Q1 v4 B- O0 L
let sum-money 0' N- \& Q* ]2 ?8 B
while[ i < people]
( p2 ]2 r- \# {+ p; X[8 _5 q& D, j" y I! }
if( length (item i0 j# u9 S0 P4 G1 D5 e3 Q9 D
[trade-record-all] of customer) > 3 )0 F& z9 P, f2 v7 x2 n0 B
[8 ~/ f' d, |. G7 d+ A/ T z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 P6 c+ v5 @: ]]
3 n* C ~5 Z# \* v! Z6 y]
" T$ P$ k: B3 T9 ylet j 09 Y n0 `2 }6 C' }: g
let note 0
, c0 J) g) [+ P& R, F- T4 ]while[ j < people]' y7 }6 A) J) y5 c" l5 Y
[5 I6 B$ U' H+ B4 `2 w# Q
if( length (item i
) S. N! r. v/ j+ X0 r1 l[trade-record-all] of customer) > 3 )
6 G% k6 F5 {4 B2 H[+ K0 O+ n1 k `7 r' w( W
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 f6 i, j8 v( T8 r- x% v, H[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 o; a1 ]% \. b3 X1 `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; D, R3 H. @' t2 F6 x* k; V) V
]3 \3 _2 _" _' t$ j$ H
]
7 z- Q# Y3 l6 ^5 D: j* B6 O7 ]set global-proportion note
* ?5 g% e- h- {* U, X8 S' J# q]
/ L% P( Q2 \* ]0 k- M* ^8 E6 vend, q8 W) d0 [6 N% p3 n3 {
0 n; y6 T8 T2 N& ?' U. gto do-trade# [ T$ } @: J5 ?
;;这个过程实际上是给双方作出评价的过程3 R! [4 C; S; h
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- Q c4 O e0 J- O- m! E
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 P5 L, G. w" e8 t u. B. l
set trade-record-current lput(timer) trade-record-current2 S' c0 x# J! ^! f) R- B
;;评价时间
/ d. L, F9 g4 g. f* \. e/ s% zask myself [; A0 @8 d" x, u
update-local-reputation3 \3 }/ f: |) |
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ s* A0 n# Y, j1 o$ R]2 a* A3 e- v% i+ i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; i$ s& W1 @% C4 u+ X4 t;;将此次交易的记录加入到trade-record-one中
! s; j k5 V" \$ R* \, bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' E" B$ Q1 w5 {& e# x8 {/ Xlet note (item 2 trade-record-current )
# h3 ]( y0 L$ V8 Bset trade-record-current* \0 d c# ]! c% S4 g% {* p8 @2 r1 v
(replace-item 2 trade-record-current (item 3 trade-record-current))% y* h/ a* h8 Q! [4 z0 w
set trade-record-current0 i5 v6 I$ m5 A/ y) g
(replace-item 3 trade-record-current note)+ y* j$ J& v! A$ C
; ]6 f1 Z; o6 l# I6 P1 `, h
* y! L* Y% d" M1 r) {ask customer [
; N+ b7 ]% Y4 P# ~( ?update-local-reputation; H$ {5 Y3 l9 @6 }, [: X
set trade-record-current
% E( J. P M) c; F: w. R- U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ ~, F/ b6 J; H
]5 ?9 Z0 J' p: I8 K
! B9 l( v4 }3 }7 P) |+ r
& ?+ a7 I, B# e5 ^set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 ?$ v5 d! b8 u2 x3 C! b
5 E I9 O8 ^* _& b: I" E
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 L9 k5 I$ v& O: j. D
;;将此次交易的记录加入到customer的trade-record-all中
7 c: B; A1 @7 R/ s Tend
; {' r& s/ K. C) y9 [, [: y9 s! P9 L" Q6 Z+ _& R0 Y* E
to update-local-reputation
! e: B) B+ T2 J, M2 ^2 Xset [trade-record-one-len] of myself length [trade-record-one] of myself
4 V- |. u9 @% w- a( [6 r* c2 U
$ i$ n; j5 K( ]) w$ v& z4 A/ A- k
;;if [trade-record-one-len] of myself > 3 : f: k6 p! G5 m* |& Y. I% C
update-neighbor-total
/ p7 w" `0 }2 Y- G;;更新邻居节点的数目,在此进行2 ?8 ?" L6 h5 S- T+ D
let i 3
9 O& H/ X! f9 klet sum-time 0
# Z6 U+ i. D# r8 Fwhile[i < [trade-record-one-len] of myself]
8 y( |1 K1 ?' j5 x[
2 g O0 t2 t8 }set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 x0 Y& d, g9 M7 kset i
, u5 ]0 N( o5 G) K1 R) F! Z1 i( C( i + 1)' K, l" C- K/ H( o
]& Y1 B" J% w8 P, X
let j 3
. L7 l ] s' [/ D" b: tlet sum-money 0: t% T' E: D0 `. d2 b
while[j < [trade-record-one-len] of myself]7 I0 Z% V: m- D
[
$ H0 i8 a+ B, G( w- G, V! Dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)) W1 R* Y4 r; U7 v
set j
5 v2 ?0 q' I2 ^$ }( h- C/ j0 i3 k( j + 1). h" f8 |# Q; v! k% V; w
]& c* Z7 L* ?9 e- J
let k 3
w! p& P8 ^6 f2 j1 [/ slet power 0, {' v6 v5 U" H4 I2 K
let local 0
$ D4 m( X3 e8 T4 P, E2 Pwhile [k <[trade-record-one-len] of myself]
7 u, K# L# C# S. V9 ^" [[
1 _* S4 z+ h" uset 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) " \9 A4 V7 q/ r" r4 Q: |5 z
set k (k + 1); G P0 W' P8 @) p: v) o0 c
]
" L8 ]3 G9 b( h mset [local-reputation] of myself (local)
; h7 ?* X0 R3 t, {7 R+ Oend) y+ {3 X7 X5 u/ U* @
" k' f( l% v/ l% L; Qto update-neighbor-total7 {# s; u1 x, [9 @' @6 m; S
4 U1 }! h7 ~+ |' _
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], t- F+ ?1 l; t0 y- i( V3 k2 {
& Q6 c& ]% d& H, y9 k6 ~/ i
; X1 p: { R8 }, [
end
% Z- j' f3 y ]; O! y1 B- Z t
& r; \# v: P1 G! X5 pto update-credibility-ijl . s7 ]; `8 Y5 T1 b
$ w1 S4 Y0 S6 Z' H9 F1 n
;;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 K5 K. g% Q5 r
let l 06 B8 L. G! [2 @! D6 F6 r: z
while[ l < people ]$ ~ _: X- i, l) v+ e! V* n5 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; S3 w3 r0 Q y% Q
[: S) ]2 z9 I+ M$ O
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# {! w9 h$ v4 P# j6 q" Zif (trade-record-one-j-l-len > 3)
6 ?& L, u/ V$ J4 p; 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-one7 j& i0 J- M( q: T1 G
let i 37 z: v6 s8 i. U5 S8 `
let sum-time 0
9 y" y" w; z, ~) q% Swhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" e' ?9 D1 a6 F3 J, U6 u& Cset i+ e J; h( [! t7 @
( i + 1)7 A& d6 G' c1 Z* r9 c9 e& R
]" t' v" ]# L. }, q+ \1 u* Q8 e
let credibility-i-j-l 0
( [& O' |; @5 V;;i评价(j对jl的评价)# a; u+ U" L }- U) n b" n
let j 3' Q( J ~+ D$ v9 i$ u/ y- T
let k 46 q7 z) G( u# F* g. b
while[j < trade-record-one-len]
! s% I+ \$ W; W! L' t[
' y; b( H* v Zwhile [((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
: x# l' b9 G0 y+ v6 N) Hset 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 l9 e( }' }- Xset j# D; \; ~. N- p- e1 H
( j + 1)/ E+ K# q x) N' Q- U
]8 U9 F5 s; }- B/ Y; A, C4 K# P
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 ))
+ t7 E% \0 T- E: Z5 e* k7 F
* L% B+ A' X7 `0 A6 C% `8 D/ u
( ]" G3 q% v* x+ a9 f" a% j* Y- vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. s6 u" D$ G' Y6 c( z# {. Y& q;;及时更新i对l的评价质量的评价
% z( Y7 K/ G' E1 l8 T8 H# Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# j# A* @4 L1 U0 ]6 M$ o4 }' g1 d! nset l (l + 1)
) p( @$ ]' U% @3 C# I% P]5 k7 w; U* H0 k$ x
end
2 }0 A1 N: e9 x9 s5 N' @. F4 W7 S% N8 k' o- B2 [& d5 _
to update-credibility-list. R* ]. j" y9 Q; b
let i 0& u, j! u* y m7 E: X
while[i < people]2 `% T" s9 h1 d( z) C* b$ a$ I5 w
[8 A; k* [) U' y4 n. y4 o2 G x
let j 03 B* [4 k4 Q2 c2 Z5 V
let note 0
% @/ I, O8 ~- p6 ~let k 0! m$ V# J4 X; }. i' O9 w% V( C* v
;;计作出过评价的邻居节点的数目8 h# @8 z7 {5 b
while[j < people]
! w) Y! Z7 q& L. j' Q8 l: G2 i[5 A8 q4 M0 M! m9 `/ X$ b" x: g
if (item j( [credibility] of turtle (i + 1)) != -1)
# t% D* ~. W' t/ |. r7 R+ b! X( |;;判断是否给本turtle的评价质量做出过评价的节点2 Z1 n, Q( n j! ~5 a
[set note (note + item j ([credibility]of turtle (i + 1)))
& M- t1 |7 o2 }8 N* O8 } {* a c;;*(exp (-(people - 2)))/(people - 2))]
% x' Q( V1 n, `& U8 Dset k (k + 1)
% S, ]* X% v) Y: \8 [- }]; n! D6 d( x% e5 @9 H+ m/ e
set j (j + 1)
; a9 P! s. J9 [( m& ^) v]
" p& z: d( B7 z) S. h G: Mset note (note *(exp (- (1 / k)))/ k)$ z; y, J! ?, K8 u+ @+ e% j4 Y. ]
set credibility-list (replace-item i credibility-list note); I: j, y4 u {4 w& d9 D4 ^
set i (i + 1)
' W' |* }7 X' {1 h a9 k4 F# []
9 [9 p, C/ r( \1 O3 c2 [$ cend
% g( \. M: H) c h r7 i( B( L% W" K7 F, }& M8 l/ u
to update-global-reputation-list7 x' k7 a) {: ~. R
let j 0; ^3 m/ D- M) j+ q
while[j < people]5 H0 |% P- H6 i% h
[9 S, S3 F7 `" h; s5 ?" ]
let new 0$ c+ ]$ P9 ?$ l* u' [5 r& Q
;;暂存新的一个全局声誉+ T$ C. p( R% P; S
let i 0
, z0 c, m8 V6 jlet sum-money 0
* K. k+ ], A7 ilet credibility-money 0
, ?1 Q1 O9 x$ X: dwhile [i < people]8 ?* u8 `* ~% |) f/ P5 a: I3 P
[
/ u- ?% f& Z0 F6 N& ^set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! k F q* S& E3 Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) c2 ]3 z5 Z. C }% R: y3 e
set i (i + 1)9 P, P6 B* p( ?* D
]! C2 D# a7 u& M; ~* r) Q$ E+ ]
let k 0
" t* j9 T/ n+ R: d) k; D% c) Llet new1 0
9 e" t: a2 \. c* p- D* K: gwhile [k < people]
5 \- o( s8 N4 S1 S[
6 E0 X( h! R8 U, ?/ [) T9 J5 gset 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)5 w2 s2 v5 X8 V- v3 e9 d3 e
set k (k + 1)$ @7 R) `& ~' D5 v h' ]
]. T6 N E, _- a T0 Z' }9 i
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # A; x& d9 l [* D9 q% f. Y
set global-reputation-list (replace-item j global-reputation-list new)
0 @/ V2 W+ V0 d: u5 u0 T y6 Pset j (j + 1)
$ c }2 p- `; A]
& R/ [$ e% U1 V0 a5 H, Aend
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; ] _0 l" b; L' r0 W: F- ~1 H0 Z2 R) X
) Q& P) R2 b$ q0 w
to get-color
! Z( H5 n+ g; E+ b) c- y! {
* i0 ?( J' l* E L+ X; oset color blue
! i# E3 |3 n& O0 T+ t3 F2 M; Wend
; c5 q0 Q9 \1 [6 S6 x
) l) t- ] K- Q0 O( I) R; Ato poll-class* P9 h m* E* C6 @2 C
end/ k+ W6 I5 M, c# ~+ H, B& R6 ~! O0 o; M
: t0 H9 T P7 |; \7 f& `7 i! I
to setup-plot1
( U7 \( J0 c) C$ G' r0 O; j) T7 b3 Y1 ] T- Q! B
set-current-plot "Trends-of-Local-reputation"
' C8 ` g! |2 |0 N; x2 \- p) @6 a. S" U
% D) w8 M+ a. @! A/ S1 g, o' m, \0 Oset-plot-x-range 0 xmax
) d7 `* q! c8 }$ g! m0 t( z* J
5 c* F: Z+ o e" V# N" R0 Gset-plot-y-range 0.0 ymax
# h6 t+ U/ _' X$ U9 V' L9 l$ h! ]end/ w! i/ l. i- I- M
6 ?: `( A8 r7 y$ r
to setup-plot2+ x' H: G. a% \6 Q
5 ]* P4 |" Y, @4 s, b# I$ O
set-current-plot "Trends-of-global-reputation"
0 n( X3 l. a1 k8 b( @" G9 ]% M6 O' F! a/ Z$ b
set-plot-x-range 0 xmax% T9 b# S" Q) f. B: k
8 ]* M: l9 q: z1 j4 f) {6 G9 |/ L0 H/ R8 uset-plot-y-range 0.0 ymax' `# s Q" t/ Y. X7 G
end
, M0 L3 o3 x3 C6 J# g+ Z
: y- S g8 R( Eto setup-plot3
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set-current-plot "Trends-of-credibility"1 `" w' ]8 c0 W4 p3 j* ]3 t
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set-plot-x-range 0 xmax' m1 u W0 ~" z: {" C5 n
6 k! J4 [" m: A/ ?; K/ U# oset-plot-y-range 0.0 ymax
3 i& B/ n$ Y2 g. n+ P8 P! o/ vend
% B7 A5 u* T. D" x0 Z9 K4 s, B7 V3 n1 E7 F, e* I4 M
to do-plots$ u) W& p$ k8 K3 |7 J d
set-current-plot "Trends-of-Local-reputation"
2 }1 N6 W, O3 r l$ ?+ d$ c7 Tset-current-plot-pen "Honest service": f% N- ?4 v4 i6 N6 ]$ J$ F
end
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& ~/ a4 g2 ~4 E[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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