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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 A0 D- w, ^9 |" m V
globals[
% C3 q, H# h9 O, g3 |! Q. M+ [5 ~# ixmax6 R6 H/ k5 S9 E& g& r
ymax. P/ w6 u& _4 ?+ o( H3 V
global-reputation-list& l) G( v: _% y2 r6 N0 L L
- F3 j! R9 H0 x3 L3 n& ]3 L;;每一个turtle的全局声誉都存在此LIST中- Z2 R, L# J% P. }: I. I
credibility-list* B/ V: u/ a9 \* s# q
;;每一个turtle的评价可信度& U( o0 T: w; c6 P; b, z! B
honest-service& m1 a' H# F6 @. G
unhonest-service
9 x1 U) I3 ?/ [' m# O+ X. Xoscillation
( _# S( f* p0 g! h T9 qrand-dynamic
) J. {, v4 X! y5 l, l7 q) \]
' D @: U! ` Z! v0 J
~9 B' {5 B* Hturtles-own[
) n: m- n+ q1 P6 Itrade-record-all7 P; I& N0 F/ d, }, P' w8 x0 U
;;a list of lists,由trade-record-one组成
7 Y k7 t" p! V' ^trade-record-one
5 B) e( W- L$ F( e;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* B) |. N9 V, H' [
~9 f" s8 G; N6 t;;[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]] J' H4 S2 b; ~4 _" h
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]
! [7 w- C" e, ecredibility-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
r# @' M( |( C! f1 E0 F: Q, y7 lneighbor-total" H& j: Q( J7 ~( ~$ a8 }0 ^
;;记录该turtle的邻居节点的数目
' T! N; p* J$ N# C2 ]/ s, g$ w% Vtrade-time
/ L& E; n0 S. R6 P4 f6 m5 z;;当前发生交易的turtle的交易时间8 Y# a& B. @* z* k- z/ R
appraise-give! Y6 s2 j, E# J& R: `
;;当前发生交易时给出的评价1 \7 Q5 e7 |- U$ d9 @" X+ Z
appraise-receive$ F! E/ u9 W% a0 h2 R
;;当前发生交易时收到的评价9 S6 Z, T+ q) s5 y- |7 P
appraise-time
7 P* l3 d$ ]! g& n9 b;;当前发生交易时的评价时间
, K! U+ v7 } C- \$ @: flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 i9 Z0 w6 p9 s5 x. ltrade-times-total/ D. f! K' W' k
;;与当前turtle的交易总次数
. }& J0 z4 H. ~' Z* n+ e% j Ptrade-money-total
# O3 N/ |& M; }! k- O7 K- o- ^;;与当前turtle的交易总金额- k% Z1 L* X J! n! e% o& v2 ?
local-reputation
- n- J- E" p5 Bglobal-reputation% ~3 V" T: ^6 H% f7 [% a! ~0 A
credibility
5 a1 q& n8 y( d# p6 `;;评价可信度,每次交易后都需要更新
4 }" o0 `, ]8 L. e1 xcredibility-all0 z' v2 T$ o- ~ W( K& Y# O
;;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
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;;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
: Q/ M$ [; w. Q9 D' ?) Y9 jcredibility-one
; F8 `/ H3 W7 @. A3 e' A6 g5 |3 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
) S) i9 O/ d$ U7 `7 {: B# Lglobal-proportion) c$ X4 \2 f! b7 g( z n" F9 b
customer
S8 E$ ?% \& o6 B9 X' K/ y9 F5 kcustomer-no
1 `1 x1 `8 D# X+ wtrust-ok* S1 D* C8 E/ d9 r3 X% f# U
trade-record-one-len;;trade-record-one的长度
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+ F% m% y. e0 p9 v# g
;;setup procedure
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to setup
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ca1 i& {9 @# d. n0 Y/ t1 X9 l
1 \; f( L G& m1 f1 d! ~# w; ninitialize-settings. i8 }0 N* r: r2 F- u
! L3 ?$ |5 r3 O
crt people [setup-turtles]" J" h7 L1 z% a, b5 n/ J; V7 g& o# U
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reset-timer8 b* o+ l a. [7 F E# G
# L; y4 @/ `% ]2 H! t( W) @9 dpoll-class3 I0 B8 R& R/ U2 t' p
2 M7 `& q& j. Z" Y
setup-plots
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do-plots: A9 q/ l# q( G9 O$ @
end7 E( I0 R2 t C5 _
7 [7 F- ?* U2 x& \3 u; wto initialize-settings4 C8 _/ n+ _! U4 \7 K8 T
; H' x( g# f. ?$ z# W3 N# Z( Gset global-reputation-list [], o, M' o6 B" z3 A2 x# z" t( e+ L; A
; e1 K1 m3 _* r# q. Q; s- t; }
set credibility-list n-values people [0.5]- ~& s5 Z- `( R$ ~9 m! E1 e" }2 j
8 v1 W' c3 t, Q2 zset honest-service 0, w5 U0 `4 \& R3 z" q6 B
4 @6 }& T" m' a1 v% ?0 b/ f5 ]
set unhonest-service 03 o# C+ J; y5 O# l0 ?
7 _. r, u# n1 Y1 t# C" jset oscillation 0
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& ^8 y5 v8 j6 i( c: F! Uset rand-dynamic 07 D+ d, ]4 g% c
end! H; h! d1 N; G+ m
6 m& }- C6 Q% F* V1 }/ B! X
to setup-turtles 1 m' h5 Z( E8 a9 H! m2 f" k# x
set shape "person"
- I: J2 b k% R5 E$ esetxy random-xcor random-ycor0 w4 J: ?: S/ a
set trade-record-one [], K$ f! ^+ F# R$ y( @3 \* r
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set trade-record-all n-values people [(list (? + 1) 0 0)] " q! d( N2 X/ `* B6 b# C0 |" d1 F
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set trade-record-current []
, l8 E- n0 P# R, W, aset credibility-receive []
- K- }, Q9 z7 Tset local-reputation 0.59 @" Y/ n1 A2 s
set neighbor-total 0
& H/ ` |& J2 U" {' Zset trade-times-total 0
7 E* K) P, p8 ]& V: Vset trade-money-total 0+ g6 Y, R7 [! @: {
set customer nobody& c6 ^3 d# j0 t. j/ O- L" s3 ^( B4 W
set credibility-all n-values people [creat-credibility]/ C/ v. L5 f* X7 K' Z
set credibility n-values people [-1]
3 _$ m( H. z5 k3 L# R! sget-color
2 [7 a# t1 H/ w4 g6 B
4 h: x+ @2 L5 z, }& Yend* l4 O4 b+ R6 H0 R" I
$ [9 R+ Y5 v4 Q9 t# @to-report creat-credibility3 o7 W' f5 v* t. |, q$ S/ U! y( s
report n-values people [0.5]
' O$ F/ q; a, |+ S. gend
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to setup-plots/ G) Z6 O% z1 Q% o
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set xmax 309 H& n0 K: J; a" |
6 Z1 ^% A0 A7 C) x+ F0 E) M5 k2 ~
set ymax 1.0
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% N& Q( }8 a- O3 K7 O7 Q, S" Uclear-all-plots
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setup-plot1
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( P- D5 R( `$ W$ G) Fsetup-plot2
- i, G+ |8 \2 V
. Z* |% o! z( [setup-plot3( A' C' ^7 O2 x' S6 t
end
2 L2 U! _& h0 t% D0 h- S8 \ ?; ^2 p: F: \2 Q$ u1 `
;;run time procedures
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to go
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ask turtles [do-business]
6 y2 s, Z) z/ J9 B6 {- Tend
" B! k6 F, A0 {8 T& ?6 k1 A' b0 S \; M: C# n! d" C; X5 l
to do-business
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6 t6 Y- Q! H5 k
$ G4 e# d5 e/ ?* {9 f/ s0 Q2 Lrt random 360
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fd 1
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ifelse(other turtles-here != nobody)[2 h9 A; G1 V7 X0 s2 \
$ f& N4 \) B. {9 ?9 Z2 P
set customer one-of other turtles-here
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' E0 U$ |% V h, l+ ^;; set [customer] of customer myself2 S% f: h8 B# N- v7 W
8 q3 o4 n5 m0 r3 Fset [trade-record-one] of self item (([who] of customer) - 1)
# v+ O" `2 f1 V! a[trade-record-all]of self6 b5 c1 b0 M0 z2 O0 V- ^: U! Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- A* C/ l9 T8 Z6 ^2 j' X
! z5 m" X: Y: S4 j5 Mset [trade-record-one] of customer item (([who] of self) - 1)5 I5 n* W* U: q$ A$ {
[trade-record-all]of customer
# ^' m1 F2 M; d1 u7 B& r: D5 r, n# `) k e( z2 w5 |% N, H2 v" ]
set [trade-record-one-len] of self length [trade-record-one] of self
' ~, c# G# |0 N% S+ {- r( O* M$ N( S/ C5 H& u
set trade-record-current( list (timer) (random money-upper-limit))
+ Z. ]2 @0 l: l. O& U
0 [% r8 N) e2 f _! Xask self [do-trust]1 \! D) m) @- x [7 @: e0 b* O
;;先求i对j的信任度
2 y+ Z$ r: \5 a+ w" f8 Z
# G' E4 s: Q8 ?" Z) u( Aif ([trust-ok] of self)
& V k% k3 |# V2 j$ `; @8 y2 K" ];;根据i对j的信任度来决定是否与j进行交易[
7 }4 t8 O0 a; v+ \: ?+ w8 M2 \2 aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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$ U u; T& H; D8 Y[
, Q/ D2 a7 v7 ^) A5 K: S$ E2 `# y1 M7 K
do-trade( i- Q2 j& ~6 T2 p/ L4 n, F1 R
1 k/ p* F. t* E) r* {& k' D6 v9 C0 Supdate-credibility-ijl7 E. M! J* B: A- C5 n5 R- J
; P+ I. h7 U- A
update-credibility-list/ H; a, [3 v0 o3 r
; {0 Y8 D1 E0 V0 K" ~# o
2 ^: S$ l1 h p3 ~update-global-reputation-list
$ C0 Y) ~4 T" Y5 g! k0 Z/ P( ~
" z1 z9 l( ~# w" k, R9 x& fpoll-class( e2 @6 c8 w0 T$ q
) R Y/ w7 a" }9 h: G5 E" K$ S8 Cget-color
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]]8 s$ L! _. C; N
; v3 P6 y! r4 O5 c
;;如果所得的信任度满足条件,则进行交易) }# ]( g& z4 J! m4 _5 p* R- l6 R9 A
( j" z# y" g& B[
. M8 f7 h, h9 C; y8 z }" C: }% i# l! Q) o- A" C- w. n7 I4 M# m# B
rt random 360
5 \7 i# s- r2 {
2 L' ]) W9 `+ `$ E) tfd 12 O4 N: d$ F$ G- L
5 b7 H4 {% T2 r8 z, E: g
]
8 p3 L* s) }& r2 U% ]) G3 W; l7 z& M& y- ~; o, A- q
end: b/ o3 V2 z7 l' X; t
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to do-trust 1 U/ S! J/ J- d' ]& s# q! |9 c
set trust-ok False
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! _6 S0 g' ^5 F5 Q2 J' D
let max-trade-times 0( P9 g6 k" Z- ]( S
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. c4 ]$ G* d: A- u0 c& c, F* V6 v, |, Zlet max-trade-money 05 |# k0 i" C- f: O) @4 T. K
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 e) v: v9 [; M" J5 V1 t- ]( L
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). a: J T* r, I% R3 \! b
, e8 K/ H7 v# l/ {0 n) D3 w6 I+ k1 |
3 C2 H/ c# a) K5 D. O. N1 \
get-global-proportion1 D$ g* ~' y6 ~, O
let trust-value+ Z0 D. b. B# m" V. e H
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)
& z# A! l8 H O. i+ n* yif(trust-value > trade-trust-value)5 W1 J9 }9 o) {! H$ x
[set trust-ok true]
8 G6 d/ c! x7 }! c0 Q* e/ `8 P- p" L; ^end- P8 ]' O" D: y
; U6 Z; K, V0 lto get-global-proportion
0 p# Z& L4 t4 d" u: d% S8 l: F' Z' |ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 U6 j9 R7 b, d* x: R9 x: U
[set global-proportion 0]+ E2 {9 s5 c; ?# ^ H' b1 G
[let i 0
/ J2 ~2 u" o5 t$ N5 Q* O7 C5 ^" rlet sum-money 0
2 z6 Q# O( e9 P% `( { ~! Kwhile[ i < people]1 I2 l* f2 ^; g; d/ c
[
R- a7 z; x/ r) k4 A1 kif( length (item i( p+ k9 n" i; ?; h5 U
[trade-record-all] of customer) > 3 ), ^) v1 f, F# n. p, C/ `8 ?
[
9 @" l, L& l3 A2 Lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))! f# X# u- d h, ?. Q
]
; G; B- T \7 k/ h/ E2 l- G# k]7 ^3 A. T% }3 f2 o ?8 y2 Q
let j 0
5 G# g: f6 E* [3 N& |0 Ilet note 0% q& y2 v* `; W, o
while[ j < people]3 Q, p9 k4 A1 t9 q$ x. ~- q% l
[' R: Q2 y. |* o f8 x/ ?
if( length (item i, W/ p$ w. M: X! ^( }& _
[trade-record-all] of customer) > 3 )% R9 j! ?, l/ d* h. C5 {0 {
[
0 D. z' _/ }( f: P* m1 Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 @4 ]5 F8 T1 C' i, i' Y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)], _% _" h( n1 z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. k$ f- _) I/ x5 Y$ ^]3 u$ Y6 a/ P( }. a9 o' t/ G" H1 i+ D9 N G
]
! {; u8 l; s8 Q4 W% xset global-proportion note$ q. H! Q$ C V% w4 e
]) W$ n$ R% g5 j) b* [9 y) w
end4 i3 R* s' R' Y0 B
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to do-trade( \3 c8 {2 Z, w5 O' `/ o( B2 t
;;这个过程实际上是给双方作出评价的过程
/ R- p7 U% e; j+ Y& g6 F/ fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: h% o' D. j& W C7 \) E F2 w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" f* s" v- c4 E+ [' ?6 ~set trade-record-current lput(timer) trade-record-current
' ~, S, s q" T;;评价时间4 Y3 \& y2 M% L k, ?+ ]+ U
ask myself [" S4 V; e" N1 N7 w* N
update-local-reputation, e( Z+ s/ F8 G* _. E& ~4 {
set trade-record-current lput([local-reputation] of myself) trade-record-current
: g7 I7 A L( s4 R/ t `]
9 I" T4 Y8 y& Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 I3 u; c- [* X( ^; a2 |' r# h' Q;;将此次交易的记录加入到trade-record-one中
8 k) q( N& `) N' S! |( I( m, B( k, zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ y& K1 U, o$ V* a ^ \let note (item 2 trade-record-current )1 K2 ~" |) O$ r" [! I9 m
set trade-record-current8 \+ t/ T, C- K; d
(replace-item 2 trade-record-current (item 3 trade-record-current))
7 g4 }4 ]% j: c5 `$ Nset trade-record-current) c3 d/ [2 M; Z0 p, D. ~% x
(replace-item 3 trade-record-current note)
+ n+ f" S% c- \3 M" E1 n: }" R8 W: d9 \$ H S7 T# ]
1 y7 H) ~- M/ |0 ?2 Y6 Dask customer [$ I2 b1 G# e W! k
update-local-reputation
3 J- D/ L) G% i7 p9 Eset trade-record-current3 W( Y' x( G o$ B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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8 c3 p6 o- k* T1 w0 ?
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ k1 }3 \# |2 }+ @; \& u
;;将此次交易的记录加入到customer的trade-record-all中8 g6 [8 C& n+ E+ s* c) ~/ e- _
end
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to update-local-reputation
7 S5 o/ \4 p6 H8 P5 d: H/ yset [trade-record-one-len] of myself length [trade-record-one] of myself
$ g/ s& J1 p9 }3 g) {: s f& H0 ]" k* H; I, c
3 e2 V# x4 w- h7 z/ a: i;;if [trade-record-one-len] of myself > 3 ( B5 w) n' h8 E5 P% t" |' t
update-neighbor-total3 {2 m) L( K8 a+ [. K/ I
;;更新邻居节点的数目,在此进行* {' ]) t j$ l2 k$ u9 M
let i 32 M8 i# a7 v0 }3 m( \
let sum-time 0
/ d7 r% A2 M; M0 Z2 h6 Y8 Zwhile[i < [trade-record-one-len] of myself]
3 p/ Z% ?" k, ~) O[
# K$ p# b" r+ P! u4 H7 N4 N Gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- n# }) f2 S7 j+ P9 J
set i' w' o9 Q) x7 F8 L7 m% ~
( i + 1)
! @4 i" z. w, ^. X+ P- d]
+ ?+ h+ T0 A/ c* s/ u' ylet j 3
) n( G M* ~8 j, D ]let sum-money 08 a) h5 Q) [2 F& e+ ^' X5 [# ?
while[j < [trade-record-one-len] of myself]* e) ^# }9 o1 O6 }7 s& d
[' w" W; T+ k/ W; n; m: G( o% F
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)0 B3 I! L- j, S! K" K( o: M
set j: \0 h7 B7 e7 Y! s1 G# {* z2 D: ?
( j + 1)( W& d& j j6 `
]* X& u) C z9 ^3 h, w
let k 3$ Z! r: V l$ B( ?
let power 0
* v' F: n9 H% F) T7 |let local 0
/ ?# x8 \/ v( [/ F- J" Nwhile [k <[trade-record-one-len] of myself]
7 Q6 \* h3 }4 |0 u. t* c6 {3 G/ s[6 j- b& J9 E( j" |
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) + b- F" ~8 H! C3 V
set k (k + 1)) q: G% l( [/ }. X/ E
]7 |+ v5 O" h$ @# B+ V6 m( o6 i% L
set [local-reputation] of myself (local)
& n! N! [8 P# h% ]- Uend
9 p- }! W7 ^: r, N; g6 n5 ^/ q
9 z( O! Z1 I3 z. o W6 tto update-neighbor-total
0 D+ z x1 ` d+ \
+ e2 d* I ~# S P% F" Iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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0 D {/ p) I- E* B2 Q
; G1 V0 \- F9 p3 a! V S, wend
, n. T# ]3 ~5 Z- O$ K( N) S& x. g- ]. c+ B3 Q; X1 a
to update-credibility-ijl 0 x: G" n) V/ [
; w. `5 Z% N; N2 [% \+ W! M4 o;;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。" I* C: y) B% ~! w6 D9 Z# U. {
let l 0/ M L) r( v7 t
while[ l < people ]! s4 i) J. F f
;;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
- X: j* U- a% F# e3 Q' Z+ g[
' i( q4 [* k6 k: m& h3 V0 p0 c/ Rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" G& J. j9 ~2 E$ H/ f/ Y8 e9 O5 iif (trade-record-one-j-l-len > 3)
2 W- V5 R( ~; _0 o! e: ~[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
! z8 ~ b8 Z, ^9 Hlet i 35 k7 c1 @4 S, ~+ t0 T
let sum-time 0
& }* K6 L1 e3 ^! n9 P* ~while[i < trade-record-one-len]
0 T2 F: {4 b! X1 _' h M3 A$ L2 Y: u[
4 ~$ U/ ^1 Q9 ]$ }. tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 \- M W4 S2 i' ?set i
# r8 m* c. \' n( i + 1)& H5 s. y' h1 w: L; E+ B
]5 b1 k, J" b7 H0 I
let credibility-i-j-l 0) o$ e, W" c. i& T7 s! E
;;i评价(j对jl的评价)3 b; _1 B, t' \3 ]# X
let j 33 B0 Y: q7 C, Y- g4 J
let k 4
' K0 l; ~ s* r; n' K) {" L4 Kwhile[j < trade-record-one-len]
; M" r( v. ~( _; r# F[, w- t" \0 N" I
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
+ F5 \0 f- c( qset 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)
" Q/ Y/ l2 ^0 zset j
0 g/ T: a2 [& ?* K( j + 1)
) V8 `( V; n& r! f6 w6 P; t" n]
- r* y4 A) `" ^4 b% E3 tset [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 ))
/ d# u# t1 O g
9 u* H! I6 e S) i& v7 |) z
. F' e8 ]0 y5 b* c+ f6 a) _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); c7 j3 `4 h# m* U% r8 F
;;及时更新i对l的评价质量的评价
3 X# f' |5 K& ~9 H! {set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 ~1 u- x( M- j& u1 q6 jset l (l + 1) d5 i& F6 }3 f1 m" _: c1 I
]* I" W0 Q% n0 l$ X! a: r: d% N
end
E( t' D% }3 C1 G& m- W1 Z3 G1 a$ {1 B( i
to update-credibility-list
: f; l: E' T; y! @+ s9 Glet i 0
7 B* d2 d( s1 Z b5 Hwhile[i < people]. x( a- @8 @; R2 K2 Z. k( H
[- L% }6 r8 P3 Y$ p9 D- i. z
let j 0) `5 P5 u. M) R8 g5 i+ W
let note 0
5 p. H: j" |( B' Z0 G, u' x9 f {let k 0 M ~/ U5 ^* k# w
;;计作出过评价的邻居节点的数目) Q$ f8 e \) T
while[j < people]
" P& R1 O5 y8 P* v3 R[
' U) W% w) E0 j# jif (item j( [credibility] of turtle (i + 1)) != -1)
5 }% G% d, |$ u' t6 ^. K;;判断是否给本turtle的评价质量做出过评价的节点 ]$ S: ~. g% M/ T- J4 k, z
[set note (note + item j ([credibility]of turtle (i + 1)))
/ ?8 U: G7 V/ T& N$ \;;*(exp (-(people - 2)))/(people - 2))]
% k1 \) Q' j9 a; j2 F) Y$ x. ^# H& [2 Eset k (k + 1), q4 J) |6 k/ Y
]
; [- x% ]* a% I' I, y4 pset j (j + 1)
( h- f5 v: Q* e% n! |/ l0 S A]
! [+ U! q5 N% f) v. g9 `6 E* H8 Jset note (note *(exp (- (1 / k)))/ k)
9 i9 _8 _: |+ Aset credibility-list (replace-item i credibility-list note)% O* h" y9 C# q. E4 @7 `
set i (i + 1)
( [0 C6 F. v ]2 g0 |7 O]. K8 K+ h- ]' _# J2 Y* F3 {
end
) d7 l3 `- `& R8 {: Q4 f4 z G% Q5 H- N" L
to update-global-reputation-list
$ X7 g( n. E! E% h8 P/ dlet j 08 {6 u0 U. ~# o1 E; j+ b' D
while[j < people]
6 N! H3 D$ R; d: ^( e[% Y5 N7 a4 s$ X
let new 0
' ?4 c3 _, H3 j# @) v* r8 G/ \;;暂存新的一个全局声誉/ i/ b4 {( m( _' M4 x1 L. E
let i 06 B/ \1 [: T. L( ]. K4 x ^0 f4 X
let sum-money 07 Y. P% r5 q% H' A% F# l, ^
let credibility-money 03 {9 e/ V9 s" S' M5 `) ]3 U/ C- Y
while [i < people]
8 n W9 q3 x) Z5 B1 c[& I3 q. p# }$ o
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 }$ x8 ]) k* |6 w# X
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# J; A" m0 P3 W" R: \
set i (i + 1)
) f0 q4 B& ]# ^2 W% N# Z% ?& ]]
, l9 V! u$ w7 \0 xlet k 0 J: q j, T* J; p
let new1 0% T) @, Q* g* \- M
while [k < people]
. ^& s* J/ L! n[
, O x+ G4 n, bset 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)
" H: d1 c3 ] i0 H0 Kset k (k + 1)* \% D& S. w. W# z) c# N
]
7 y: ~) Q9 s6 X. K+ h0 uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) Z- \$ V0 r2 Y* \- Iset global-reputation-list (replace-item j global-reputation-list new)# F! h3 p% @: O; P" t Y
set j (j + 1)
1 }' Z% I$ H, r. P' k6 {3 j1 s]/ r8 ^! Q# m9 } @6 S
end
) v" O7 }; p1 u) _1 d8 |9 k$ B e
+ \" `" {$ `% W
9 `, `' Q! k% m4 n2 Gto get-color
3 p1 S" S' ^4 {$ X9 P, D3 w. G# \# P N0 C
set color blue
^5 n( d4 Q% [ _end# y- @! u. N& j/ H5 l8 k
$ V$ O1 N( @' o% gto poll-class
) C( a1 A8 k9 o+ \7 J8 Iend
/ \6 A5 S$ P. l0 F- E: [- r/ ^8 [. |3 }6 ]" O
to setup-plot1
) g- r, k1 c6 s C! h, C$ {: d" z4 V/ m l8 V# R! {! U! O* d4 }
set-current-plot "Trends-of-Local-reputation"
( |/ R/ a+ D9 G1 z: p4 A* o# o. Q# q8 [
set-plot-x-range 0 xmax$ e$ t& a; H( y8 H- P* ?
# X* U# M: ^. G0 v% }
set-plot-y-range 0.0 ymax8 I; U% B" i. C
end* Q4 |# _' |& D6 f+ t
) }" J# U0 q9 M! V0 J* @( bto setup-plot20 X' {! W w. e: Z% Q
/ _& C* S* m3 J. J0 J' ]# X7 A+ ^4 l: ^set-current-plot "Trends-of-global-reputation"
' C1 S+ E; [9 ^8 x3 p7 _. w0 W/ C. ?8 {% j& U
set-plot-x-range 0 xmax$ q% L; C7 F8 P. W5 [ E# u
4 H/ `7 M- y) h0 I' ]set-plot-y-range 0.0 ymax6 N4 ]* t( U) b, ]6 n t6 k. E. M
end5 Z* b0 O' ^; L4 f
) X' w) d B& m; @to setup-plot3' A. \) Y( K7 F3 m+ T
0 A3 }: k; a/ H9 F; s$ K
set-current-plot "Trends-of-credibility"
6 }% l& J2 x- c h; v/ M4 S- Q* v. f) s/ ?9 C% F
set-plot-x-range 0 xmax* b/ n( \3 x( k
7 m a( ]8 U7 A! h. d0 z8 |7 Cset-plot-y-range 0.0 ymax! D# o6 ~+ w: w% \/ f
end
# c% w; ?! k8 X* t7 i# [
7 Y+ A' \/ ^$ X8 ]# rto do-plots
' t& ?, B% F! i' ]& T( S- H8 Zset-current-plot "Trends-of-Local-reputation", ?, U$ X' c! `+ ] I# S9 h& p l
set-current-plot-pen "Honest service"3 z" Z( H L/ @
end& Z- M) ~9 l# O: {) A+ t
) O+ ^; \: X% E9 ^[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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