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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5 d' D9 T; ~1 ~' P3 e
globals[# G& K# i& _3 j# t" N/ _ _5 y
xmax
* k" L; M; n5 v( B5 B2 qymax
/ I' f; `1 {+ i4 H. E6 nglobal-reputation-list9 N$ Y8 Y2 V% I( Z5 Z7 A, x3 n4 Z
! e3 q8 b; a* }: x5 o;;每一个turtle的全局声誉都存在此LIST中2 h( v: ^* y" b( _7 _# F
credibility-list
3 G$ y; W: }5 ]' l* E% U, U;;每一个turtle的评价可信度1 W0 K7 i( l- a6 j1 @) H
honest-service% p% S4 h( N; J+ ]0 E
unhonest-service
6 Z5 h# R0 [4 c0 Roscillation' _# W" A6 C+ O" F
rand-dynamic
5 B8 r) R) w7 r" ]; L]% g9 k( [6 X3 R) ]
4 `; k1 \. p: t! w1 _/ n
turtles-own[
3 L# ?! F3 G% ?# W7 xtrade-record-all
, N, T2 u1 W" d0 f3 o2 D;;a list of lists,由trade-record-one组成& r9 A0 `; u8 l
trade-record-one
! U: H5 h- T* ~1 S% b+ r4 Q;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ m# G/ B9 m4 Z+ W% d* A& y+ _
. W: r$ U, i$ K2 u6 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]]3 B2 y6 f; ~5 D' l# D& r* U) M: T
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]' U& k X, ]" Z3 R% f
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( \' h+ a8 q% A! R7 N5 \9 n
neighbor-total
8 R! [+ u3 w. R8 x- W/ ~;;记录该turtle的邻居节点的数目# l& i* w$ A3 ~
trade-time
$ p! j2 k2 n" P; E;;当前发生交易的turtle的交易时间
( ~: ? v; t8 T3 |appraise-give
6 N; e0 z+ e2 w! r0 v;;当前发生交易时给出的评价
8 n6 J) z! W; \: b! v+ B. P+ U/ g$ vappraise-receive
+ B) k" U9 K* l& }3 n8 j;;当前发生交易时收到的评价4 u7 z; _% U4 ^. p( o) J
appraise-time7 ~0 h! c8 D' w* z& O
;;当前发生交易时的评价时间- E5 K; s) N! H) F' r8 g
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 M4 K$ b/ u* \4 `trade-times-total [6 T6 I$ s3 c8 M& G& F0 L
;;与当前turtle的交易总次数
6 d. }; c) _/ a0 p' |0 Mtrade-money-total
2 c' ~& \' o' B1 Y* K8 @;;与当前turtle的交易总金额7 F' j* n) E. o/ F* [; |; R: h/ h
local-reputation
+ s; b) h5 o" J# W6 ^global-reputation
- M: k$ Y. G; P% z, Z/ F- B& Mcredibility2 g$ Q) V* r& z7 w' l4 C
;;评价可信度,每次交易后都需要更新
" A- G$ p, ]( `& G {) mcredibility-all
. f# R6 r/ P7 v( {8 B& y& Q2 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$ f6 m5 a/ S3 g1 P! g* n
* ? o H( F' Y' w" [1 J: s. g: \;;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
% @3 w" `7 ]4 q2 n; y/ Xcredibility-one5 p0 \6 Z0 L( A& {
;;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6 ^ b4 h; G( _. _+ Z6 Y% p
global-proportion6 W- F4 L2 S! x9 A1 |& ~! h
customer
9 U y g; z! ^% N2 g0 g) r2 Ocustomer-no
+ g; Q8 D8 U% e- Y: Itrust-ok( o* t2 \- g5 A
trade-record-one-len;;trade-record-one的长度0 Y7 ?) W' G/ Y9 v$ i# \! l, n
]" c, }" [( G9 ?0 r9 q! U
8 l+ l3 f5 C& q3 ~, `# L _, f8 u
;;setup procedure9 Y7 p& K2 f r9 j
6 [7 L/ L$ n0 w5 t- P% {
to setup
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ca
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initialize-settings
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crt people [setup-turtles]! U0 P! [# p0 J5 t( b
4 q I3 q7 b: ?0 x
reset-timer+ `, w, H% v( @$ g% [! x
5 Y0 \! V/ e* E) I2 ~
poll-class
- ` Z) d; q1 U4 v8 L' E# n# N
! ?/ C5 _! W& A; r+ X$ I1 R& O6 Gsetup-plots
6 p5 P, I) g8 I6 x& C3 A1 H: B7 u/ z8 D: U8 c
do-plots
" M8 h* w- h5 x1 {$ Rend* n [9 X2 O' i4 s
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to initialize-settings
( s9 e( _! H% x+ n5 |4 U( h }% i
set global-reputation-list []% v) A$ m% e- W5 D8 Z5 _% u" g ~
; F d$ m8 m/ B0 Y1 L3 Rset credibility-list n-values people [0.5]1 k/ s, ^, U0 P) s& }
# k7 U6 o) {4 X1 ~" P# Kset honest-service 0# G# C' m& [+ p N K5 f
9 J9 @8 S# W5 L: _- r- j
set unhonest-service 0' T( c% ?# t. u0 @
$ O( F) s! |; C$ y+ S7 Aset oscillation 0
# y9 J& R/ H" W3 R( ?+ L! n3 L) h8 n2 @4 V4 J8 N
set rand-dynamic 0+ y( n/ ?1 ^( ^2 R4 K$ {) y
end
+ t% d2 ~: Z$ o3 _5 Q1 F1 Y
) g5 w9 ? x( n' ^8 m/ A2 U1 ^to setup-turtles , [* v3 H7 H% y+ F2 b) I9 ~
set shape "person"
* v2 T# I8 r0 _: p* H a# x$ N2 fsetxy random-xcor random-ycor
& W. v6 d4 g; A/ i+ G% U- Cset trade-record-one []
* ^. i, X. l7 c# j; q
% O/ C4 I9 C" ?( i( S0 L- r$ aset trade-record-all n-values people [(list (? + 1) 0 0)]
2 g: Y4 F2 I* ^+ e0 S | y
% [* ~( d9 Q0 A: F7 h# j7 X4 O+ J+ y5 Iset trade-record-current []$ B% q2 Z9 y) |) a* F3 W2 d
set credibility-receive []
! q* q$ i6 \6 e+ Nset local-reputation 0.5: j& ]2 R7 }8 @' S. S1 T
set neighbor-total 0
# Y" V) M( w4 g# b8 v$ rset trade-times-total 0
7 S7 g' b) [- F- I1 eset trade-money-total 0# {$ l- j* t' M/ Y) X' x. s! x8 f
set customer nobody n) Y/ v" b: K9 S! [! j4 y
set credibility-all n-values people [creat-credibility]
7 S/ e0 q2 `9 `. g+ {3 d" zset credibility n-values people [-1]
* w' A) @& H9 [/ h8 tget-color
$ g! ^, j& ^8 y; @2 o& G i0 h1 e
' s( u$ z# |1 aend
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to-report creat-credibility
: N; y5 {6 @2 F& Y. L& Zreport n-values people [0.5]
0 f+ C$ K: j7 p4 E" ^end
( M, ^7 l* {% v5 g! ^# d c
Q* a/ P, |3 \. _2 d. w9 |to setup-plots% x F6 t6 g! k- C0 A5 D4 F
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set xmax 30; e0 T' o$ O# B+ N5 X9 \1 {) }3 N' ]
; q, z# J+ v) A# E
set ymax 1.0& a& n# o$ c% B/ L9 H9 r7 I
- z7 P4 W* B* b7 ]clear-all-plots$ X7 ]( _+ }/ Z5 P- u. q* [
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setup-plot1" T& l7 M" x% m" z" ?, r, }7 h
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setup-plot2
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: C' r" k' G5 V3 K* ^5 @9 Wsetup-plot3$ w: g( X) }! _3 u M5 I
end2 d8 N' T. L% l% {* t
6 [- ]- u4 K$ r/ K- j;;run time procedures
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2 p. _$ S9 b E* q6 \$ ]) vto go) R- l5 P, L Q: L M) P0 m; o
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ask turtles [do-business]3 H) e# I' m+ p8 I
end4 @7 x3 T+ b4 Y' J- }. i
! Y1 ]3 h% \. \to do-business # w, ], F" k) z7 v1 }7 r' o: {
* D2 G a/ w1 R; w5 S4 A2 H4 }( {% f
rt random 3609 |8 ]3 U i! |2 L6 Y/ Y M# G, w" g
: l1 ?# G: f: n0 j# ~2 afd 1' `6 {: s( x9 ]7 t
2 Q+ G/ U5 c5 f( rifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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) s0 U. {* R% F; Z! z' g2 R! Z$ u;; set [customer] of customer myself* i* Q: E- O/ w4 g% u6 O
# B& g+ Y5 d4 d) ^# jset [trade-record-one] of self item (([who] of customer) - 1)
6 w4 a) R( z& z, l7 P[trade-record-all]of self
. h$ ~6 ? k8 e;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)( K5 ?$ Z& ^* A- R
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]: S8 q4 Y; q4 t5 _" k) D
;;先求i对j的信任度
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if ([trust-ok] of self)' R' t% \, h8 [) k: o0 X0 f
;;根据i对j的信任度来决定是否与j进行交易[2 x6 _% S( [ K: [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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6 j# ?" A! r- N/ @2 Q[. ]3 d: s0 m& _9 F9 X* @" T. M
- O6 k( \' F Mdo-trade" e9 m& i! A3 O0 Y+ m
. i, V, ~6 u P. n4 F5 D( p0 ]update-credibility-ijl% A6 u0 ^. a) V1 }8 \
$ G& O. W1 s4 w1 {# Zupdate-credibility-list
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update-global-reputation-list
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poll-class3 u2 O1 e7 t4 W. E& E4 }( \
2 M9 J' Z& B; i" _* k* [' i
get-color' w' s3 j" O3 V% k
! U7 }9 x* D3 n/ f& a]]* }1 G, x# X( ?" b: b
4 d& N; j$ E T0 p$ H( b
;;如果所得的信任度满足条件,则进行交易! C9 ?( \ X; i# `
) o- i) y9 @& c7 G/ E9 T8 Z[
' f2 Z/ o- I7 R7 ~7 P \4 W: J5 w: i
rt random 360; ]! e) J, x8 D7 H9 m/ N: u- b
3 `8 \ i' ?: B8 H/ z1 K
fd 1( C- K3 G. o; G+ y( C* ^5 j+ r
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$ I: B. Y( S, ~; ~% U, z6 I/ D
end F; r* r( k5 Q
7 `3 N/ U, D" w; j1 r1 x. \- ^to do-trust * m7 B4 }( M. [/ G2 X D
set trust-ok False
2 r; | Z+ h |9 Z) V9 X, s4 D$ F) m9 Q& M G$ d) q
0 I6 Y; {" s( k$ t4 J* `let max-trade-times 07 Q: d" S/ b. ~0 G- I$ b1 _3 T
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 o1 Y% \9 p! `8 m; `; c+ e2 Elet max-trade-money 0& z; o, f. o3 @. ^0 o
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# `% U9 N/ Q2 p. a$ y! ]" v
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 r$ d: {4 A6 l; ?
( X% @7 Q. u1 K- z6 ^: g
0 e; Y E( D% M7 O! h$ qget-global-proportion+ K: Z. C& K2 Y @4 Y1 w) k/ q( H
let trust-value- o: u+ U! [3 u6 O! K$ N
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)" |3 }# T9 w' W& {
if(trust-value > trade-trust-value)
' S7 ^ K7 M5 N0 e U[set trust-ok true]
, U) X& a; D' c1 F& aend
. S! q' Z8 N9 g+ E3 \* k+ a5 x7 q' Q g
to get-global-proportion7 R9 `, U) s# x
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 Q. |8 [& c: j( O[set global-proportion 0]
) T4 t/ N, r$ j2 J U[let i 04 n& H, g0 d& D. I' j' e8 v/ t
let sum-money 04 o9 _0 B2 }9 ?8 z3 [0 R2 d
while[ i < people]
5 S) \ P! A' Y" d3 Y g8 I5 _5 m[
k @. e1 |3 J" m2 y$ |* e/ Qif( length (item i
" l0 ]: d- f8 g. q[trade-record-all] of customer) > 3 )
6 {' {, W8 o9 v$ m' a[9 |' d( r* M& l4 H m
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 ~1 ~6 `$ {, F7 l# t9 |$ n i! D+ L]9 {; R2 r$ @6 b* U6 f7 s! c0 X
]
- H3 z9 u' W9 u+ s) F5 S8 @. klet j 0
- e, _2 i9 f& D* Mlet note 0
( g% ]0 _! t4 f9 X1 e1 y* x0 wwhile[ j < people]
& _" _6 U G: o[6 Q: i% S. l$ B1 C
if( length (item i2 y9 k3 k, j5 B! Z( Z8 _) J
[trade-record-all] of customer) > 3 )
: O( \( ^ ~3 u' a[
- g8 M1 ~, e, P- jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ H7 B3 Z8 s) K: q" ^* J5 Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ E6 ]! v( P0 l0 y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 j% Z/ p4 d2 f: A], w/ j* c; X# h# q
]3 i5 V5 O L; B. L
set global-proportion note# f( g g$ S r' r4 O& L
]
6 N! K7 _( {4 `4 F {# Mend0 h$ W9 y8 q- }1 i# c" G! w6 ?7 u" S
: H% n9 j* F0 K3 g3 e6 |! [
to do-trade
& |1 [0 B' {+ V9 d3 q7 U;;这个过程实际上是给双方作出评价的过程
4 S+ {; E& z9 L4 ?4 t# zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. @; J# |: h! c
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ _# i( N& n9 E+ |# Z+ ]set trade-record-current lput(timer) trade-record-current
0 x3 ]. ~! T: \;;评价时间
- r0 L/ _$ u x( ^9 j- {- d8 nask myself [
2 L. d% _8 \2 t# Gupdate-local-reputation/ E" `$ q0 o' v3 t4 r, M3 ]
set trade-record-current lput([local-reputation] of myself) trade-record-current
# C( j7 f2 K0 f]
, p! h3 E2 j/ \9 K4 _4 Q8 Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
B' J9 O: e7 J8 ?* S, {0 x9 q2 R;;将此次交易的记录加入到trade-record-one中6 q- I4 t8 ?; N' ]1 y! w
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" Z5 |' u6 V: P0 g7 v% k5 G- q
let note (item 2 trade-record-current )! d- G$ o( S% x- J" v* f2 \
set trade-record-current
( j1 x. J" B1 t* ?, l) N2 J1 [(replace-item 2 trade-record-current (item 3 trade-record-current))
: M! i- T7 P2 U' a2 M* b8 Jset trade-record-current6 `2 Q" N! u* ^6 ^/ [% q
(replace-item 3 trade-record-current note)6 W; H- P: \' [0 F5 _
5 |, Y6 O# K0 w# G
; v% E2 }) J. y+ ~ask customer [
4 X" b/ I& A; m1 d. Mupdate-local-reputation
" c6 d/ T; V! G' ]. m" J1 Kset trade-record-current% g) l7 h$ B& ^* {3 ?9 f! G
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 x3 Q. [* O& y3 o: J0 K. {
]
r4 J7 o4 u( J- S3 c! v. ? O" e1 j, ^& d5 l- ^- b! \: d
9 C/ j( H! {% q) J: cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ y C+ f w% M9 ^0 m U
; t' S: N! e( Z' a. b
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ @3 P* ?$ B( q9 R. P% \0 u
;;将此次交易的记录加入到customer的trade-record-all中
) k* O3 p. B. s. Uend
# b! l( G* i! }* m" j) {4 I: X4 Z4 G" c7 n" m N9 r8 t% p: ]0 E. r6 u
to update-local-reputation
# a( K+ S3 _+ N3 Y% Kset [trade-record-one-len] of myself length [trade-record-one] of myself
' L" @# N0 T& z! N0 e5 v6 I# @# B) ]3 \* A7 k
( T5 L g* o( ?8 s
;;if [trade-record-one-len] of myself > 3
( r" T7 U% D; p; Kupdate-neighbor-total7 `. q0 T5 R' w) ?
;;更新邻居节点的数目,在此进行
+ M$ S) c+ W3 @; I& G$ R0 B+ vlet i 3. z$ F7 t! z, @* a1 K
let sum-time 0
/ u3 v$ O5 C1 c" \0 b- y7 lwhile[i < [trade-record-one-len] of myself]& K0 |) l ]! L4 l# n7 ~; o, A
[; w! z3 R& w0 }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 @/ W8 _. R6 j
set i5 u/ D, R4 s# ~' [, @
( i + 1)
2 }% v' ^8 {* x5 [' z2 k$ u3 j* }]4 I7 v1 ~" {. z/ v- v
let j 37 g% K5 \, U9 d8 g( b/ m
let sum-money 0) b7 T, c8 a6 [ M
while[j < [trade-record-one-len] of myself]' z0 ^; a9 P5 B5 b
[
- y% z* {3 ~5 U$ x) Y1 y, o& F" lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
* l' X3 t2 p f& R* g) _6 [; B9 oset j9 b) f9 M" G9 n- b" o( A
( j + 1)
8 _* j3 q% D8 o- g]- T! E" s1 ]5 c8 ?' r6 r
let k 3
4 W N0 g1 \: d e6 l3 mlet power 0
) N8 n7 ?# f3 @% y1 Q9 Y# tlet local 0
* s5 Z3 O: O( O: H# G5 Awhile [k <[trade-record-one-len] of myself]
7 H7 [7 Q i/ O: o' e[* p% s V) ]0 B* Y2 M. ^7 F
set 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) % O' f( Y2 a* z- l% X1 r
set k (k + 1)
% M6 U3 S: Q3 a1 _, z' A+ s" u$ []- t Y" u0 I' ^: v6 N
set [local-reputation] of myself (local)
( T' _; ~/ \$ m. yend
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to update-neighbor-total; @" h. V8 \1 t2 i b* z
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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# [5 H4 W8 A9 D% H! nend3 R/ s' v8 F e4 }9 {* ~: T
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to update-credibility-ijl
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;;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。' O5 _! P" u) B9 j4 ^$ S/ N
let l 0: @* G' w5 W' a/ {& N6 {0 b3 m/ ^
while[ l < people ]
/ Q" ~0 q( _8 x# {+ z$ u8 o; 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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer), R% N+ U% V2 t6 }& H9 T X
if (trade-record-one-j-l-len > 3)2 M8 Y6 I. v% b
[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/ _/ t- D- a: \% t) ] }
let i 3; h. l5 Y0 m# |6 ]* u
let sum-time 06 P2 r1 T1 C# l4 J
while[i < trade-record-one-len]
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% Q: {7 F Z7 r2 D9 k# b4 c5 \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); i$ n! ?, h7 d. H. b- R3 ]
set i
4 A) z/ B3 N/ P( Z( i + 1)
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let credibility-i-j-l 00 Z# u9 c f5 @* o& R" N
;;i评价(j对jl的评价) Z) _. u) N, a" k1 Z% y
let j 3 n% L0 `1 ]) \% a
let k 4* U5 ~! D% d" `" s- Q
while[j < trade-record-one-len]
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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* |: Y6 P- Z
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)- z6 h) I' k" f7 P, e" r( q
set j
+ v! N& {7 h5 h8 M$ K; X2 Y( j + 1)/ t2 y+ Q7 x4 f" Y* n& P* c
]
8 h/ K& ^" y* l Zset [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 ))) g/ q! h% O' ?0 y }) }' D
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! a7 b H5 c! i+ o, c;;及时更新i对l的评价质量的评价
- U2 R }" O5 z! nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ \3 K0 x9 O7 @$ b( F4 j; @
set l (l + 1); d9 T2 k1 c# ` h% }% o
]0 B4 M% C0 H4 _
end4 u* k, P; f! @
. c& l5 d" @% A' S8 hto update-credibility-list* Z4 e. [ \, L1 O k: l( A+ N V
let i 0
5 I1 [+ }- c& Q- i" Jwhile[i < people]2 t5 W9 M! [7 n1 R' F+ |2 M
[
& K6 Y8 y6 e+ w# y* S" q" rlet j 0, M* B' J4 z/ t/ ~! }6 ]( q
let note 0' k* K7 S3 F8 Y9 N- e7 J, Q
let k 0
* K9 y# X! Q' f1 T1 w4 J) z1 |0 @;;计作出过评价的邻居节点的数目
$ J! `' x s( N4 _. Zwhile[j < people]
; z3 r, h1 S: b/ L) h, L9 _[
r+ G9 N6 B2 Z6 g, I: k* ^- ^5 z6 xif (item j( [credibility] of turtle (i + 1)) != -1)
5 Z! n# T5 ]( Z% V( O;;判断是否给本turtle的评价质量做出过评价的节点- R3 ^& g$ b: K6 F: Z* b+ Q
[set note (note + item j ([credibility]of turtle (i + 1))). T% p. g5 X% \, S: R
;;*(exp (-(people - 2)))/(people - 2))]
6 t$ |9 {% t5 j/ H* L) Lset k (k + 1); z: ]! `' P+ `' C" M6 i8 B
]
: L2 w: s2 W0 R6 sset j (j + 1)
/ X6 Z/ u) Z9 o]
: \/ S0 A/ L! R( H0 Iset note (note *(exp (- (1 / k)))/ k)2 u. h) U. i, e1 `: D
set credibility-list (replace-item i credibility-list note)- z4 c$ K( d1 l
set i (i + 1)* H) L E" ~ P( c! A7 X" ^% u7 a
]
8 _& ]2 ]& l5 Hend
3 X: g6 l3 z/ b' n8 }! S
) t M. \- s. G4 }) Wto update-global-reputation-list
" A2 ^' ?9 Z S( f0 v( @# |( Ilet j 0
9 N: z2 }4 j1 a' Bwhile[j < people]
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& R; E0 ]/ W5 R9 T$ X- T! p1 g1 nlet new 0
5 ~( y( y/ F& g' o( F* b: j7 s3 B;;暂存新的一个全局声誉- ]9 j" b6 S% `4 C0 o( a) t
let i 0* z: \/ @! d( D+ y
let sum-money 0
" F3 M" w7 T" [3 Vlet credibility-money 0
6 L# o1 w# k; Awhile [i < people]
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' d% h0 h3 [4 m& F9 Q$ N% B% mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* I# W8 u0 O. S8 L6 D! U0 s
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! D/ p2 G% F- w# T( @set i (i + 1)
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let k 0, u$ ^# R6 |+ b+ X/ ]( |
let new1 0. \; q$ `% w5 G6 y
while [k < people]
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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)
* @5 { b* w# k' c3 Yset k (k + 1)1 h( h) T% M6 U+ _+ g
]
1 y* u4 v% [ z, G* fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % u( l% A4 D3 ?8 D; l
set global-reputation-list (replace-item j global-reputation-list new) @ h# s( u5 F/ m+ I0 p% Z
set j (j + 1)! v0 g& ~- P! U! d- t( |! d2 P
]
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3 n( J" i# u! a
to get-color
+ d* O/ m' q2 N6 M c/ S" a8 \; S% s
set color blue
+ [6 b! E% I: j" X {5 Gend
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8 u# T0 r( Y( zto poll-class
3 r1 s, `8 W' @' c7 D: _end
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X, R. q5 N7 p( p4 Hto setup-plot1, Y2 _" v3 ?0 J: v5 c
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set-current-plot "Trends-of-Local-reputation"" R E. L7 l/ `) \5 W9 `) y9 O
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set-plot-x-range 0 xmax
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5 F5 b( Q( L) {8 {3 Dset-plot-y-range 0.0 ymax
( M5 P+ B! ~6 ~: fend
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to setup-plot2+ n; k$ E& ^- s: V- R$ M7 ?
: w& M, [' N/ _- A3 g4 kset-current-plot "Trends-of-global-reputation"
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/ V2 K( c& N' H) A* ?/ Fset-plot-x-range 0 xmax
, \5 y4 ~+ {. u5 q4 ]+ \5 H; C+ L- p9 `4 q" V
set-plot-y-range 0.0 ymax
& V0 ]0 B; \! d) ]. z* P9 V9 tend
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7 S- ~1 n( ^: w: e& eto setup-plot3# A. b" s$ H; z$ j. Y
2 Q: h" ~6 ^2 I4 O) l1 p ]& Bset-current-plot "Trends-of-credibility"
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5 c; E- v7 H5 [. L J) yset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax5 u9 Z# T8 [9 m, ]; l
end
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. s5 L8 `) y, _; y: x" l8 G, n& ito do-plots9 E+ d% s& S! G+ |' f
set-current-plot "Trends-of-Local-reputation"
) L8 F! Y# M4 Iset-current-plot-pen "Honest service"
9 T3 K4 W& n' n" @end5 D1 F3 ` S' u7 \( I) S8 O" r
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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