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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
+ A! g s9 O+ u4 ?: iglobals[
! B# \: H6 }. V9 Y) f, txmax/ Q: ~& x# F) e
ymax% a7 B/ l$ z' {' k- o v* B
global-reputation-list( ?2 P& L3 b8 B3 _" ^6 T+ y7 ~
, S# d2 h% B0 }+ u3 O8 x
;;每一个turtle的全局声誉都存在此LIST中
/ l0 S2 @: I* [$ Hcredibility-list
$ \( x z; y" A# };;每一个turtle的评价可信度
' n( Q5 U4 X6 b" g& w9 {honest-service, J2 q5 v5 {+ D; Q$ K7 P$ I
unhonest-service+ D- {( X# B! c7 i$ H# q
oscillation
1 j o1 p! S' W8 Q k0 H* \5 Mrand-dynamic
8 I- h$ ]: E1 _: P]
2 [4 _ y( r$ ]7 k& k2 F4 b. r0 |2 M+ w
turtles-own[6 q2 l; ?4 \- |& s* v
trade-record-all
* A. P4 f" L% w. s+ W4 l;;a list of lists,由trade-record-one组成
: @6 j8 T; ~" U% h" C) gtrade-record-one( X3 W! n6 s% j
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]
# e1 Y4 c3 [8 R. Rtrade-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]
}6 ]5 E1 H2 ~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
0 y6 O3 c! K9 m7 x7 Lneighbor-total
9 W9 [; \* `( W1 H# X3 S;;记录该turtle的邻居节点的数目
% C4 @2 {3 y: C# y6 Y4 `trade-time
1 _0 X& f; O' R9 m- Q;;当前发生交易的turtle的交易时间, @9 V$ `% G% L; i
appraise-give
+ l+ Z; c7 o9 V8 q6 [7 ];;当前发生交易时给出的评价# {/ ?; B! U- Q6 m2 o
appraise-receive8 J" B5 S3 ~; F( b- O
;;当前发生交易时收到的评价
& U0 F A' _5 E5 Q" g. [( x1 Aappraise-time
- s' A/ s* `; u, F) z1 L0 @3 ?;;当前发生交易时的评价时间
+ l' Y& c8 Y8 w* llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉) M5 v$ v0 j0 w) l2 G8 t
trade-times-total
1 @* w1 J( }$ }( E! v;;与当前turtle的交易总次数0 m1 \/ K8 x- A8 v" R$ n
trade-money-total
% G/ i* q$ T, ]) T0 s6 q;;与当前turtle的交易总金额
+ R+ l4 G6 B/ w3 D! S. Ulocal-reputation2 n7 n- G; \6 [
global-reputation
: [, V) M! O: I, _+ Kcredibility
9 f- L' q% A1 P0 `+ @3 x! r;;评价可信度,每次交易后都需要更新
) W9 b5 |6 S& F" L- s; ucredibility-all+ O' L# {. G3 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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8 q( O7 k/ R5 V- D! ^' O;;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 o7 z) S1 E2 V7 G8 ~" q8 G- u6 i
credibility-one
! T& n$ U( G* T! T0 R;;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# m/ |% ^1 M- D
global-proportion
) {' o" _- ` zcustomer6 j9 K2 t. C! r' G. G& a, y
customer-no
3 o+ ^5 [! W4 x! J, M" btrust-ok6 k; U* s, ?$ {" R: p' _4 }
trade-record-one-len;;trade-record-one的长度' u& q8 n/ m H! C5 s; n
]9 _8 A; ^: G7 I C9 k
$ x9 y1 \: P) y" ?) ^8 x* [
;;setup procedure
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to setup4 V" @8 h7 ~; k' K! `
5 ~0 g% p R, R6 _0 B# b
ca
6 X- O. N6 Q% a/ f) v* n* f
4 D! T- o& m; {" F% b/ R7 E0 Tinitialize-settings4 R% ]; A, y1 L
& W2 l) f+ f2 y% ^) _, s( f/ Bcrt people [setup-turtles]4 U V* H) x* y" A
- W* t, p5 z& F3 g* b& a) A
reset-timer
5 k) p k, {3 K" P( _( W! e
3 R) C$ y$ Y b+ g2 E$ O3 U3 ^poll-class/ P. k Z& h1 Z: `' B" Y% s' X
( C! c; X* ^* hsetup-plots2 ^) h( j; w4 x- |. J. b
0 O) L' { K3 R# H! ~do-plots' ^/ U" l) i" A9 y
end* L& x" c6 s$ W& p: S3 g8 E/ j
1 B2 L8 L& y9 N; Z V0 A* Oto initialize-settings2 G R5 e# d4 t- K: c/ y7 T
0 k" n+ a6 E0 M
set global-reputation-list []
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6 W+ N: o7 M5 N9 | W+ vset credibility-list n-values people [0.5]
8 V5 z6 }/ c; g1 y) k: `5 t
. d" l8 M' v' C- Yset honest-service 0
0 M, R4 V& p7 x( V a4 A
4 o, {6 G1 [; s, r8 d2 l: S8 lset unhonest-service 04 Z( I: h0 ]1 C/ o* }+ i @# \
, |; H$ L' F1 ~- O5 K7 J# r6 {
set oscillation 0
4 f, p( y# i! D0 C$ {- n" ?2 z9 h: T3 _9 |) [2 [+ H
set rand-dynamic 0, b C" ]! Z/ M
end
; i: |) m. O' R% S1 d) c) m7 p! z# a9 ~ L
to setup-turtles
) {0 x- [: S e, lset shape "person"
$ s2 s/ B: d0 L4 s+ Xsetxy random-xcor random-ycor
0 C9 ?" F# Q& a) M7 uset trade-record-one []1 h% }- e) h1 B
1 q A- [. n( ]0 K0 jset trade-record-all n-values people [(list (? + 1) 0 0)]
4 B6 b& ~- z0 U, H; ]
5 `; E7 }+ y( h8 @0 o& v3 Lset trade-record-current []
# f+ O. J/ p; w* z: Fset credibility-receive []
8 C1 h. ?( u/ Tset local-reputation 0.52 X: @% N% b9 C3 u( C! r
set neighbor-total 04 ]! `+ e8 Q: l' u, o" [% p
set trade-times-total 0
' ~6 q8 ?. W# N% Nset trade-money-total 0! o3 L& \- K1 |- ?% a5 `4 O0 Q
set customer nobody4 \& H9 y c$ U+ j+ U
set credibility-all n-values people [creat-credibility]
" h8 G, ?# g# n, j2 J0 _set credibility n-values people [-1]
5 X5 A5 W q1 A. D7 \+ L* B/ k/ iget-color
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end
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to-report creat-credibility% f6 m6 M: J( G+ U( C
report n-values people [0.5]
, _. l# V# H: H( _! }end
6 @. g& U9 U' G4 k) O% ^& `
$ G: O$ v+ V+ k* T/ Yto setup-plots
" ] F1 U& C, ]5 p8 X) u: O
5 J8 H, Y0 k F% ]+ @5 N( Yset xmax 30
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$ j. {% I5 `1 n, G9 Gset ymax 1.0
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clear-all-plots
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setup-plot1# L6 [. P0 |2 y2 N! E3 n
% Z+ p; M2 E7 j8 j% C+ O7 D# nsetup-plot2
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setup-plot3! c* Z) ]2 X! I
end, X) I3 O. @1 I
4 M' Z/ }# m& ]' R0 [4 T
;;run time procedures
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% l0 Z* U, S) r4 hto go
$ w% a! w" N( R0 D- S5 ?
& }5 y! u4 ?. w& oask turtles [do-business]
, E% t6 a' ?; N* ]$ e3 E9 Xend
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to do-business
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& U6 x4 w6 I3 \! ?6 _
rt random 3601 A1 m9 O: a7 X
( n' m2 L! s4 j# Rfd 12 L0 i" d$ U5 f1 ]" ~% h y
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ifelse(other turtles-here != nobody)[& V" p: R* h2 }- V
; P6 t: h# C R% y! n* oset customer one-of other turtles-here
1 \5 ~4 {# |' x* ?" j: J# B" I9 A% A/ y; A/ U4 D
;; set [customer] of customer myself$ t8 k3 `; N, b1 L6 W
: J& U" E% v$ W7 q" N! a, o" b3 @
set [trade-record-one] of self item (([who] of customer) - 1)
% f$ G) m- i' U& Z# ~* |/ ^[trade-record-all]of self
' Z/ K, ]1 G- d1 ], m/ o% Y;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self R' Y8 ]; G. y
4 o5 F" f$ p, q) P6 G" f" C* s0 Yset [trade-record-one] of customer item (([who] of self) - 1)
- Z& s9 P& o6 U2 k[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
' k/ ]8 N/ ^; Z8 ]) m
* g& u% Z* R2 A- G2 t7 r$ h) Vset trade-record-current( list (timer) (random money-upper-limit)); b$ x5 \- s4 B3 e) p G/ o
7 E3 @8 L/ m) Z w9 C3 p
ask self [do-trust]- ]" W; F; y5 o, E1 a1 v7 g( n
;;先求i对j的信任度) I; W. W. d& ^5 l9 `$ p$ ^- i
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if ([trust-ok] of self)( v! `% c4 |7 k$ p% n; m4 _
;;根据i对j的信任度来决定是否与j进行交易[
0 p; K7 \# q6 T5 d( ]5 U' Sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
5 R4 d8 B1 H2 h
& u8 O: g3 O# [5 ^( X& s- B7 F& xdo-trade
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update-credibility-ijl
) ?& |) X$ i4 V# _) V- R
, D4 ]; E0 g2 h2 c- s, Tupdate-credibility-list2 a3 E' K: g9 i- `
# r/ f/ B- ~! j% R- z+ ]2 N t' B l5 `$ X: V
update-global-reputation-list& m, I& L9 s" e9 _! |9 @* H: ]! J; l
4 P) g$ R" p. R; M, A) tpoll-class
, T- l( d) ]% t4 T; Q6 E3 l
" C+ y6 H7 t, h5 J7 i) ^get-color6 m. ?3 ^2 D, E
: {# I! n9 ?, z6 ?. T: u" X]]
* `; R$ d) e* q8 L# m
0 E8 Z0 k. n0 c& A/ y;;如果所得的信任度满足条件,则进行交易" Z' I6 v1 X) X7 Z/ X$ c2 E
0 F) Y; B# r5 m9 c
[
% h0 _2 J/ K& V
/ K2 ~+ a- Z# ~4 s$ drt random 360
, ~+ E; p; t3 |
, F! a- N; S# [3 @9 v# }fd 11 Q' B/ S8 y3 I: Y" a- j
0 g6 P0 o3 W* h" K3 M
]/ z; Q% V K2 E; l3 b; f0 B9 O
# [. F6 L8 W7 o
end/ z% ], o- M& z
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to do-trust 3 n4 m( A. Z" K! I
set trust-ok False, _3 o7 G0 V/ G1 N* H3 z
+ L3 K8 \9 O0 T$ j
' r! C6 F% [1 O/ B2 ?7 z
let max-trade-times 0# t# O9 f: o9 s* n: q( u" a3 o
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 [1 N/ ^" ?3 m9 x! H# \let max-trade-money 0
! H: j+ }5 \) Mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 h" y7 b$ @$ Q2 u5 L; J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) c! |! A* _4 I$ ?4 V! L5 F" Q; g
4 B9 j- ?. u5 ^% a& p5 j. Z8 ?+ c6 P7 n# l6 N
get-global-proportion
5 n) y" S0 \) `, o9 v* xlet trust-value
3 g' I- e, n8 A- b7 H( X. }6 L5 tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)2 c3 ~! m; d1 r' S l' c
if(trust-value > trade-trust-value)) q( I9 p& b! w* H; h w w
[set trust-ok true]& D3 L" ]0 Z' C$ x8 C3 y: i7 W; D
end
3 B4 s1 W! W; d; e
% E8 c/ L( `! R& m: ^! k3 G1 \" Ito get-global-proportion
' ?# [# i% q/ i6 I% hifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 W( h- \. Q* M$ [ n* e" b2 K
[set global-proportion 0]
, K7 O k6 W( R0 n3 w0 c6 N, J[let i 0
, ?5 H% P0 h* N% Rlet sum-money 0
( _" l% Z; ~8 R/ h5 u ]while[ i < people]3 U& D4 w4 p% }5 Q: G. W# q
[- n: d' Z: K/ Z. O a% S: K
if( length (item i+ u4 l0 d% x$ G% L8 y2 c6 B
[trade-record-all] of customer) > 3 )" Y/ @$ D+ V0 }' E1 e7 f
[
" i4 r* o+ q) k7 y, @set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 }1 y/ Y z& o1 m/ o) Q0 a
]( r+ I$ `+ ]0 l# q( c" j) f1 o
]
4 @1 p9 l, ~/ P9 F# mlet j 0
; W6 u$ b. X5 k Slet note 04 W& t7 g' J5 ]0 D
while[ j < people]
% T1 w6 V" ~5 \3 }7 A* _[
) p, f# d$ x8 y3 Rif( length (item i
, z" d' h) l& U3 V3 c; v[trade-record-all] of customer) > 3 ), ?" M H. f5 r4 O1 @! } k8 ?
[( P+ U, D y+ I+ O
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 a$ w& Q7 \& m[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 i6 x9 {% D! {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ Y3 ^! g% g1 o]
5 I, R3 W" x; N5 {]
. E4 O9 f; S( E& N8 dset global-proportion note+ C% u- i; o7 \& m" c% W
]
8 n/ I7 v1 R9 L. ?3 Y0 qend0 @/ ^' a% k! d e
5 M% N. y* Z. @" Eto do-trade. `, R; l4 `2 f4 ?% w+ d
;;这个过程实际上是给双方作出评价的过程
# v h0 L* t$ S4 ~: Z* W% t5 Vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 y% C& [/ o$ o: N/ G2 Z' g+ _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 t2 G* C( o$ C5 |4 Q' S
set trade-record-current lput(timer) trade-record-current# t1 v) {$ E/ ^" B7 d
;;评价时间
0 N& ^1 ^ T2 eask myself [
7 y7 z$ k' l% }4 ?update-local-reputation
% k l2 e0 E) y5 z- l' hset trade-record-current lput([local-reputation] of myself) trade-record-current
5 {) E. D' P% l {]
8 r3 T" |- C; }, Nset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: H3 R2 U. [9 C8 i9 h9 b0 `2 U
;;将此次交易的记录加入到trade-record-one中% h, E4 ]; ]: \+ d; s2 `
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' m! y( m* [) d J l* W6 Z" Z+ _
let note (item 2 trade-record-current )
& Y; V3 Q3 \% f/ X0 Tset trade-record-current H, s" D' n( i5 I* i8 r" g7 }
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 x0 o: S1 H! R$ |8 Vset trade-record-current
* A6 v |1 J3 F: m( q. K(replace-item 3 trade-record-current note)/ k& J! F {5 w o/ T/ q0 {
4 B+ W' l$ o+ v+ U% Z5 {. y! \) X+ l' {8 Y" l
ask customer [
% i/ A+ T3 s, z8 W% a. supdate-local-reputation& n3 v# E5 m3 L; \: k
set trade-record-current7 C# V0 D/ C+ T' t9 \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 y- X8 W5 i) L) G3 M
]
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|6 a7 h$ `. b5 r
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 F' D; Q1 r) D# A- S0 b* b
5 _9 s& e' r' V; C7 h5 C! Y$ D4 s4 ^set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* {5 W9 E) D- `; Q X* c/ L, n
;;将此次交易的记录加入到customer的trade-record-all中
$ `& D) t r' a) y/ iend2 e3 g2 M5 r+ { X& p' d9 M
# Q& E0 t" q8 x1 Q9 B
to update-local-reputation
* F* Q; }5 K8 ~1 v( f3 pset [trade-record-one-len] of myself length [trade-record-one] of myself
5 w& J" }4 v: C0 u3 K/ ^; ]: Q9 C
$ `" V$ x3 J9 G7 K J/ E% V
;;if [trade-record-one-len] of myself > 3 1 y$ I' z$ K. A1 T# ?
update-neighbor-total# \" v6 f% e* Y8 |
;;更新邻居节点的数目,在此进行% t. T8 p$ a7 O/ A
let i 3
( {# T. P; C1 a4 _/ r4 Klet sum-time 0% C. {# i/ ~0 H% m) ?3 Z/ J+ }3 p+ I# H
while[i < [trade-record-one-len] of myself]
( W6 g/ D0 L( v8 q) R% y[
2 W, p" u/ s: _- U0 w! jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 F' {, U. M7 z8 t2 y( l0 w
set i* E7 N" B/ f J m- [% h
( i + 1)
) c3 @! Y" i; ]% g7 E- |6 }]
* q& e$ v" b% H) o( I$ U& b4 G! wlet j 3
# b5 c7 e: R( [# L" Alet sum-money 0, D/ L" m0 Q7 d! Q" w/ P* z
while[j < [trade-record-one-len] of myself]! o; x- \/ C7 @0 B4 N9 G" M. v
[6 \! }" Z f" o
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). ?, P. F$ s$ ^4 f
set j6 \" G6 m; A; Z+ d
( j + 1)
4 N7 l7 {3 y3 d) R8 ~- t' Q]
2 ]9 i m+ j1 Slet k 3& O# |9 ^6 {, w' }- [
let power 0
" S/ X; ~+ P1 p( @let local 0, u6 h& }2 t# {/ k
while [k <[trade-record-one-len] of myself]
( I8 n5 j% A) r) s) S+ v* e[
b: ?# T$ |) `, P& i0 h! `: V9 fset 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) * L r' Q- U$ \* F7 ^$ {$ Z
set k (k + 1). X$ G8 G/ ?3 r) ]0 [4 A7 c
]2 P# ^, K- ^5 S- Z, z; r
set [local-reputation] of myself (local)
4 _ }9 c* W) f7 [% iend
6 ?5 H+ X7 z* p- i8 X3 ^& O( N6 ~& \( W7 W
to update-neighbor-total8 G8 l' j( T6 p% p& m, i/ q8 s
0 h! v4 p9 {2 O p& u, L: }
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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9 e8 d* g1 O6 R; N0 F9 ~
end/ _, O. J7 `2 {8 c7 D! Y) s6 @0 Z& s
7 k4 r- Y0 D. q; Jto update-credibility-ijl # u% Z! a. A: h0 r( D/ _
; ]! X. a2 G6 {, d
;;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。
1 ^% V- T* k D; U7 |0 F1 Dlet l 0
) O# D/ b$ m; p Ewhile[ l < people ]; K$ H2 S# ~0 d! ]0 b' H P
;;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)6 K7 K( U# S, t9 D+ ^; b) f
if (trade-record-one-j-l-len > 3): u% B; K5 k; s3 X1 {# R8 s4 f
[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-one0 V& z" S. E5 W2 p7 {
let i 39 k( Q3 y* H- b* X
let sum-time 02 s( p- l" H, r! l* _+ I& E, p
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' A; X6 c2 V9 u
set i
% n/ y- \9 c( l1 H" l" r( i + 1)# k' w, u, K3 J7 {
]7 F- K# n2 R7 M9 r$ {
let credibility-i-j-l 01 f. t& Q7 x1 z9 v" p0 c
;;i评价(j对jl的评价) x5 b) p% b" E, \
let j 3
4 N- Q; ]. J& b4 [# \# [let k 4
}9 R5 m" T9 f: ~* z! rwhile[j < trade-record-one-len]
+ W$ z0 n4 p5 k[& q* ?) U) R$ L$ n+ r8 y2 S
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" a$ B. o# v/ I" M! x& \" `, A
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)
. W2 O$ ~8 C7 F% f' u) D" vset j* C! A* {; U+ N
( j + 1)
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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 ))# j! { ]+ R; c5 n
3 Y6 W6 Q( k% y. t6 l9 A, X+ Y- k0 t, B. N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 j" D* S P" N1 O;;及时更新i对l的评价质量的评价
* E. ~' v0 `( U! L xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" e& D, ^0 L% j( u
set l (l + 1)* g3 {' v! V8 h0 h$ V% n7 u2 G
]
" L! _. i# c$ y4 Gend& c) s9 }" q: _+ D! L) x
3 L( y. y; Y/ z) b8 _to update-credibility-list: r' r, ?5 E( j& y* _
let i 0
( |# N* ?1 O. ~* j; f- rwhile[i < people]* @1 g* d9 T! B$ w
[
9 m9 q4 T4 b4 a* D* Wlet j 0
$ y7 D/ c5 `) Z% x0 vlet note 0
, ~; g) R. x b c' Zlet k 0
6 l8 N3 d( P; C) [9 } F;;计作出过评价的邻居节点的数目$ L4 `+ q8 e7 d
while[j < people]. G( T B, W2 Z% \* r0 d
[6 s' u# U* {4 x
if (item j( [credibility] of turtle (i + 1)) != -1)
/ i. ?) N# m7 Q/ W/ X4 l0 r# }2 p;;判断是否给本turtle的评价质量做出过评价的节点+ L& s7 j9 g6 D p: ?. B
[set note (note + item j ([credibility]of turtle (i + 1)))
- X5 y5 k1 B! x# ^5 i;;*(exp (-(people - 2)))/(people - 2))]( E! u) d/ s! `- |+ _/ i
set k (k + 1)+ ]$ ~* e& g; s* n- z( k3 D6 R
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set j (j + 1)2 j) S6 Z: w/ R3 u. U f
]) m0 e. w1 H/ i5 L! z* L1 W8 s
set note (note *(exp (- (1 / k)))/ k)* \! B- j; {! V z5 O! n
set credibility-list (replace-item i credibility-list note)9 ]& N. } @5 g7 x, y
set i (i + 1)
/ Z* M5 X9 @& `4 q]
/ h' @' K2 T- C3 @- Tend
& t5 z- o# h) ^! @/ O4 `0 s4 g3 J
to update-global-reputation-list
" y+ a# T% U; F* p4 e7 ?9 Zlet j 0- C2 X" `9 Y- Q6 R
while[j < people]
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let new 0
* I' r4 o) s+ l+ r5 m;;暂存新的一个全局声誉+ u( R" H) ]$ M8 O9 V' b# a3 {* N+ e
let i 04 U4 r% n4 J+ w4 R) v3 q' R
let sum-money 0$ f: c- ]1 i8 d' g8 \
let credibility-money 0
6 l, j' w, q$ D# E# ~: Gwhile [i < people]; H8 ]; D; @% Y1 B0 f
[0 K! f$ p4 J! _3 |' m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ P) a4 C3 T9 c/ f) G8 N9 N* w# o
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
X3 g3 w; w9 ]2 Tset i (i + 1)6 m0 E+ l8 B, N z; U
]' _4 B& C" ]( m; I6 Z0 m1 X
let k 0: e2 @5 d) O5 I# m4 {) l# Q
let new1 0: |- R9 l2 \& u" b& c
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)
4 g' {. A: \4 a$ jset k (k + 1)2 D$ A: O- ~" S
]+ D' H5 B4 }4 @( ?
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 w5 p" @4 E0 i, r9 G; s- R& _& }set global-reputation-list (replace-item j global-reputation-list new)
+ a! u6 ^! F% Aset j (j + 1)6 D3 W S6 I3 p" y" b, Q
]4 s; Q- ?! L; Q3 |
end
# t. d6 y, Z4 D5 m( ]8 S! w: |
+ F$ a7 q! j) ]1 _% A' A+ _4 |* n4 s* E9 W
! J9 B3 K$ T$ hto get-color
" Z+ L; W! y# J: U D6 k* j" v3 c: t
set color blue% a, {% p8 i( B% G( U
end% W0 Y6 Q$ f: P! I
4 J- }1 G$ U4 C! N( X( K5 H9 A
to poll-class
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7 z6 n0 q5 [6 M
to setup-plot1
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5 N% T) P- N# r- ^) oset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax+ {- n% |( R& o- g/ m- [( v9 C
# }, ~7 Y0 I d; N1 z1 G1 }, \
set-plot-y-range 0.0 ymax. R) r7 |5 T2 N
end `; J0 \+ U5 H4 R0 s# _ l" K
% j; m+ P/ z4 d( [
to setup-plot2; ^+ D* q" Q) g, r
- G# R3 e( [, F2 f3 r vset-current-plot "Trends-of-global-reputation"& s Z% D, K# {" M; j+ O
V( J# o6 A8 J1 n, c; R. C8 ^' i8 d
set-plot-x-range 0 xmax
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$ N( \& X. m* [set-plot-y-range 0.0 ymax
1 U Y) e& U+ r ? Yend
7 D4 V% S: W8 f/ w7 x% I( Q6 i
0 H: j5 c5 O3 b7 J( U; y& dto setup-plot3
% Z8 e1 B+ J5 F2 U- X" [! U& H: d6 W& U/ q: y
set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax+ v* v% X0 S* | ^6 o
: q$ C9 ]1 K# k0 ~/ [( aset-plot-y-range 0.0 ymax
" F) a. ^0 }: q" Z4 K- u+ z( {2 M5 Xend+ J5 z1 h2 Y: V n# H( F$ K
3 V* G7 I/ _, d4 N( z4 G$ eto do-plots/ f1 G' ]. r& f2 l# l! D! `
set-current-plot "Trends-of-Local-reputation"
# w0 h7 E- o& \# aset-current-plot-pen "Honest service"' d9 p( v" B* N* B
end( I0 y- V: p' e! L
R) Z: a3 n8 ][ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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