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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
. S8 L2 y# w# i% j6 Hglobals[
7 o \. m" i1 p* ?" Kxmax: l- v3 c9 Y7 L3 @( e2 K
ymax( d6 E, @0 m) I& Y1 }3 v
global-reputation-list. L0 N: s/ W3 F1 h! w/ @2 }) [
5 k1 q' k e4 {- T1 q1 |4 h: r- };;每一个turtle的全局声誉都存在此LIST中
" Q5 T4 U( ^1 K6 X* I8 r1 Ucredibility-list; `! J# Q; `, @4 a6 [* ]
;;每一个turtle的评价可信度, S( b) _# K3 y' y% j& x, Z
honest-service
6 d7 V j) k7 A! Punhonest-service& R9 @2 _6 ~' {5 p5 Q( \ T
oscillation
8 S% k D' c) y9 Crand-dynamic
5 j$ R% t5 i' }]. }$ p" ~# z7 {& `& y( ?
4 Z6 ?: q( M( |! z6 v+ hturtles-own[
8 S$ U" d* S7 y; ]! ]trade-record-all
4 [$ i+ B$ n; A;;a list of lists,由trade-record-one组成
1 r1 j: {# ~" E7 O( B( C* L$ btrade-record-one
% r+ N3 b2 a8 C' g) ~, ];;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- f0 d! C, c) C6 f1 B8 Y, F# H. @9 S
- ~+ p4 d. P1 g* P# {; F
;;[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]]% x5 N) ?: l1 R! y9 n
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]' O2 P1 S/ a9 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/ q7 A; y. \& i+ U) q2 n, r
neighbor-total0 |: U: n0 d% x( C+ L+ S; E7 M
;;记录该turtle的邻居节点的数目! N7 U4 v5 S& V/ q( c( y
trade-time3 f; R& V) }4 a2 q( t; G
;;当前发生交易的turtle的交易时间
% P6 y$ t/ h8 Fappraise-give
& O i, l+ N6 l! h& Y;;当前发生交易时给出的评价& a/ j N6 x, ~3 M% _
appraise-receive
. C [# M- t) V+ s;;当前发生交易时收到的评价
. O$ r$ ?' @& O, [: kappraise-time! r0 ` c1 c; d0 Y6 z+ F
;;当前发生交易时的评价时间
C+ x( H$ p+ _7 h- E# zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉6 U- z: t9 u! K; Q) \. g1 l
trade-times-total% R" O0 R5 N7 V* x& `
;;与当前turtle的交易总次数
: n6 T+ e3 Y% n } u" _& ~trade-money-total
4 b$ ~5 M7 `3 g. U8 c;;与当前turtle的交易总金额
5 h! s# l$ q6 C, D" X! xlocal-reputation
% _: G5 O2 O1 {9 K V2 Z. oglobal-reputation* k$ i: P c6 ~5 L5 ] d
credibility
3 `9 e# z7 k; f0 Z; P;;评价可信度,每次交易后都需要更新
' Q7 D1 u/ v' P6 G: @" k6 Jcredibility-all
3 R4 e, V/ d& N' ^;;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2 `) {# @8 H. m8 W! a/ V2 y
5 m* l. M1 D, Z/ R;;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
# d5 P3 Z' r2 z5 B& ~credibility-one6 X( R: A4 [+ p. \2 M: k
;;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2 l: E' O7 e1 u2 N
global-proportion6 J0 }# y6 f5 s) t# s
customer9 S3 u! k, [; l5 w$ l2 i2 ?6 a
customer-no/ r: z2 U4 z7 t8 v
trust-ok
+ Q9 c5 b+ h# @1 R# s" Btrade-record-one-len;;trade-record-one的长度
7 W5 m- h) x" d; l7 F% M2 |]4 |# X8 ~1 j4 X* [4 K
9 q% m; J! V# ~4 d) d" ^8 v
;;setup procedure
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: ~* Q, R$ a. C5 w; sto setup
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9 P e( G4 e! \) G# r+ Mca
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, h2 |3 I3 H6 ?) P1 \; g! iinitialize-settings
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+ a1 a' j" [! @. Scrt people [setup-turtles]9 i% e. x2 u7 ~; I' X
2 y( i: _. v; m+ ]7 I# mreset-timer
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poll-class& Q4 w# M; }; s+ o2 d# j& {' s
' ~* D+ D$ j, b6 Z5 r; g
setup-plots- }/ A6 i7 a2 _
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do-plots+ P) ~0 k0 z+ c, m+ D
end" P- H* b; h R
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to initialize-settings
7 Q7 X' q- ~2 C# l6 O
8 `* H! k7 X: Rset global-reputation-list []
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' {4 C; {7 `2 I' y4 y/ M& O5 r- uset credibility-list n-values people [0.5]2 C( F9 ^$ v- S7 f t
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set honest-service 0* p; o% Z6 V1 D' W8 t# ~3 _
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set unhonest-service 0
" I" _- Q" |- v3 V8 Y0 c, i
0 _; e0 [( x8 V* Fset oscillation 0
1 F; V! v, O% r& ]
" G& E# \" h7 ?+ b Cset rand-dynamic 0/ q0 O5 Q$ x0 p; h" w: T4 s% j% H+ Z
end
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to setup-turtles
/ t& k$ Q; l# U# @) {6 Jset shape "person"
* b$ s6 v6 z) k9 usetxy random-xcor random-ycor
- R$ A' g8 k) R: b' L* g/ d3 ~set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] ' z) X! @ b8 H# Q) ^. ?
( E6 a4 a) M0 [, J: ~. D
set trade-record-current []! ?! S* k% M7 u
set credibility-receive []8 n+ `7 F8 o$ K
set local-reputation 0.5
- g% M: E x0 a5 i7 @set neighbor-total 0% ?9 V, W( T; B- M) }
set trade-times-total 0
) J2 Z2 f. X- m4 x2 {# T; |/ ~( G9 Mset trade-money-total 05 Q7 E" }, d' i5 ?
set customer nobody3 D5 X* K. m3 i& _* }6 e% `/ X/ C
set credibility-all n-values people [creat-credibility]/ `! D% p: F8 H7 j+ D
set credibility n-values people [-1]" @1 Q! l7 B! ]2 {' K% T
get-color
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end
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to-report creat-credibility# B0 {- I% m! Z7 D0 m [7 q4 P
report n-values people [0.5]
; e8 f7 m$ w* R0 eend
- w2 v+ O, e; K, J! K+ X0 z( D8 e1 E5 a# j# P
to setup-plots
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set xmax 30' r# |6 u s# |+ B& s
1 k& F$ p2 U! M7 {+ Fset ymax 1.0' b f7 |( q* R$ i; o
) ^% L. f$ Z% H! hclear-all-plots6 t2 f& Y7 d( x( K8 H! P
' p- L7 S# C- w9 t! w' H' A" z; Psetup-plot1, U; Q: x. R* R6 g
" y* }- q5 O* r, J1 x
setup-plot21 `) @ L( X' o& X
u( z! a# t3 q8 n" Asetup-plot3: F% q: g$ T, e" }, t( c- w
end
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% X1 N3 _* _; A;;run time procedures
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to go
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) c0 S/ s) n6 p. _$ ^1 Task turtles [do-business]
( o" g5 v/ ]+ [end. I+ n, {; p) t/ N" s
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to do-business 7 {8 A* R! U: N$ K% o& ?6 P
! e! N& K0 g" n; y o" h
9 l& \" ]( m. X0 drt random 3604 X. `4 r0 U& n5 ?. {7 ]
' }4 X" q1 S4 u% ]fd 1& m5 U& a5 s6 Y* O
/ r& P, C# P; Z% `8 m3 ?1 t3 ^ifelse(other turtles-here != nobody)[. E7 i1 v3 j Q' V9 F) U, f7 s. K
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set customer one-of other turtles-here; ~0 t5 G. A' I5 u
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;; set [customer] of customer myself
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: k& h: A/ D6 ~8 Wset [trade-record-one] of self item (([who] of customer) - 1)
/ J. R3 B7 N. j[trade-record-all]of self! K2 R/ m- \2 m) u3 o. g/ o
;;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)% \ Y6 H- R- V. t/ F. u
[trade-record-all]of customer* U0 y, ^$ z, ~+ ]. y
0 |) ^" }0 _% oset [trade-record-one-len] of self length [trade-record-one] of self3 g) E$ h( |. W0 b, k: U
f( f( H' c5 d7 h
set trade-record-current( list (timer) (random money-upper-limit))7 @7 ~" X) V1 k
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ask self [do-trust]# x1 @7 S, D: n( ~
;;先求i对j的信任度
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if ([trust-ok] of self)
0 x& }4 P& z$ _2 W$ R5 n;;根据i对j的信任度来决定是否与j进行交易[
, T! d) u" j3 y3 @" G$ Sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) P P8 ]7 _1 s3 P
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[
4 N, W8 b; @: S
. k( ~' E5 u8 h# j" `5 s, Jdo-trade y! z8 Q+ ~3 d2 x, ]& v" t
t' I q* O, m( w
update-credibility-ijl) n4 j8 i% r' C
+ m4 g% H. u: o$ Nupdate-credibility-list
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update-global-reputation-list
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9 F3 d& w/ B9 j& X* x8 w5 wpoll-class% X% G* _2 r- {- U
: S1 M8 A- x& b8 g4 K' oget-color+ d' ?6 e! L) ]4 Z# T0 \3 F
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]]0 m" g; Q/ r2 [& V9 {" ?3 Q
: O T" c7 s$ _, R' A0 |; ];;如果所得的信任度满足条件,则进行交易3 B$ `& ~6 w: m' Y5 s$ |5 f2 ?. |1 \
! H+ w5 u# {3 a& G+ c[' W% [6 m2 @8 h
9 k3 Z P+ o7 c( e+ C, q( Y. Ert random 360, m; \6 @- Y0 [& e; U. e3 @
$ _- t9 F6 \: v( ^( O+ j" |
fd 1
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6 V0 y# X( H+ a/ F3 I* ^0 L' O) M# J]& k8 u. y& j# d) A0 U5 w( C
- P& z% E7 S uend( D- K o! e4 G* N- O% }
) |7 K+ R( u6 h: y; t. z0 D3 F
to do-trust
( e/ z3 u% ^; s' N% Aset trust-ok False) Z4 Z8 T6 r1 ]
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" }. q& T _) K' S5 `! x0 Nlet max-trade-times 00 ~8 J: O6 L: B
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- }+ L! `0 I3 k4 Z( j3 q5 P
let max-trade-money 0
; z! s. t o7 s; [5 [* Q, mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* I' b" o* A3 g4 [3 A! 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))
5 R- ~0 n f4 E+ ?: U# m2 x9 d7 f( a0 G
$ i4 }$ s5 N! nget-global-proportion
7 C" |& M5 i2 p2 \5 zlet trust-value! a( O5 K2 `/ a f& l8 x' 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)
9 o8 x M! H5 P+ y L) _if(trust-value > trade-trust-value)
' R8 \8 m1 u0 X0 Y+ w, ^ t7 V[set trust-ok true]2 t0 P7 v3 y" Z, o- T N7 c
end2 V& c0 w: T; W6 V; @/ b1 a' q
6 ^" M @/ Y; p! q- b% Qto get-global-proportion5 [3 L+ V8 ?% e. ^0 f
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 e' P) c& ?3 d7 K- Z
[set global-proportion 0]8 H) s* v9 p5 o+ G: J$ `
[let i 00 ~/ _; {) }. C( u# ]4 K
let sum-money 01 k. f. _" e" t- ?
while[ i < people]4 ^ A7 L. x0 G; D; i0 t( w
[
% l$ C2 d6 K) X+ k/ I' d3 Uif( length (item i& j+ h+ X- J0 e7 d9 [
[trade-record-all] of customer) > 3 )
9 ^( b8 l) T" k4 l* `5 j[
) h, p: o, Q: Z3 B. Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]' ?7 ~+ g7 q- o" s A& m
let j 0
% {: @. f0 ]8 ylet note 0" C: z v4 e% c6 _ M. Z
while[ j < people]) E* C' Q3 ?2 T1 p
[; o& H8 ?( C& A
if( length (item i
6 h% j+ o/ J l$ `[trade-record-all] of customer) > 3 )* T! t; z# N# c* P& p$ k/ i# s E8 l
[& \& R; [9 a+ Q( Q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); W1 |$ s: S# s9 s# W9 M/ b; n$ e
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 _' o; m% W" t& ]- S9 X% X( {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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7 x0 n& K! {1 e( `]2 H; U; Q5 s( R# D2 A: Y5 H$ ~
set global-proportion note
: ^+ n L$ q0 m% Z5 d]" v1 I0 T% l9 L5 E# D
end) X% k. ?" D5 ^6 d
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to do-trade) |+ T8 J+ p: K3 v( \
;;这个过程实际上是给双方作出评价的过程
( V$ r) j f# O. A+ \$ E6 }. bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! z( {, k' k" C; A1 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. z) x' Q, d) z/ A. M0 J3 X, n4 ^
set trade-record-current lput(timer) trade-record-current
: C/ i0 f E, w3 X# z1 f, m& A# T/ s4 G;;评价时间3 q ?2 q6 H% ^3 g5 {, }4 a2 ~$ U
ask myself [
# C \6 h% L& v1 @" hupdate-local-reputation) N% I/ k4 I1 f6 G
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 x1 u/ n% u! I;;将此次交易的记录加入到trade-record-one中% v4 C' h; X @- T% k1 L
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, C2 \( R9 c6 D! \, }6 blet note (item 2 trade-record-current )) D' Q$ q4 _7 [4 T9 t: _' }; i
set trade-record-current
`# D0 x/ P% p(replace-item 2 trade-record-current (item 3 trade-record-current))
3 K7 w' u/ F" D' c. Y, Jset trade-record-current
+ m! d5 l) c7 b(replace-item 3 trade-record-current note)
% T# v' f5 k2 Z- x
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ask customer [
+ {8 q) c/ { p8 y+ O6 G0 Wupdate-local-reputation4 X6 x7 Q3 G/ F4 o' l7 ]
set trade-record-current
7 S3 \5 l! Q a2 M/ x(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 g+ n' U& l* T6 |
]
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8 r% ^ w% i3 W
8 [9 p% Q& i! o' _9 Q7 r) ?5 J) qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 p, r7 c$ ^/ f' j( k
4 v M% q5 H* uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ B1 f) M) M2 y$ r) V; D;;将此次交易的记录加入到customer的trade-record-all中
# q1 a% F' U& d/ ?8 Bend
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1 R+ y h7 I ~* ~& r( |( o7 |to update-local-reputation" r5 ?, m+ G( |9 h
set [trade-record-one-len] of myself length [trade-record-one] of myself* }& d; A8 B) `9 j4 g: q" R* [
5 e- B' J: B' G& I
" B+ u" @1 h$ t4 k/ G6 L5 j;;if [trade-record-one-len] of myself > 3 ; e: E) d: }. q% F$ l
update-neighbor-total
& y- I% ]3 Q# c0 x;;更新邻居节点的数目,在此进行
& C) ]7 ?% U2 e& w' T% alet i 3
9 y+ e7 ~2 x5 U/ q l) \1 y alet sum-time 09 k, d" i6 D z; D
while[i < [trade-record-one-len] of myself]
K% a1 o6 M1 r7 ^; q3 b[% f6 e: p }* `9 H7 U
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ v& m$ z& {, p P7 T
set i
1 _/ n1 I$ O5 N7 ]& x% c- H( i + 1)
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let j 3
s: ~/ o- Z. @' P6 Slet sum-money 0
# ~% C* L: w! |, B' kwhile[j < [trade-record-one-len] of myself]
M) w# {. y; S* }3 @; t. N[
. F2 \0 _3 F, y# f+ Bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)+ z* Z) ^1 R6 g8 ^1 U) R- n+ l
set j1 x1 X3 {; T+ x
( j + 1)
2 `5 U( J f4 Y3 e s- `- r]7 e" m$ h/ j- b# |) [% S
let k 3
% K* y$ O9 @* o7 Olet power 0; K# ^* Y3 n5 H5 s
let local 0# M1 }: H2 w' g5 Z
while [k <[trade-record-one-len] of myself]
7 t$ t4 U4 e3 i" p[
7 t2 }1 q- }4 d3 B" V5 s* v5 P6 Jset 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 R: m, h {/ K2 \7 c+ b" _3 ^$ N( `9 Nset k (k + 1)
9 r M0 E7 P5 U8 i+ p4 Z& D1 R b% v]
" ?. W. S A! C: Xset [local-reputation] of myself (local)( X% v( S9 `$ U1 u9 g& k
end' T) g3 E. {. n7 [3 Q; x3 z! z
g$ C, K. F# W) @) h! L
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end$ E s/ K5 @+ P: D X
$ G: Y4 \' X1 R* h: V2 mto update-credibility-ijl
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% [5 a- B+ J& p9 V8 @4 V;;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。
' U7 a4 _+ H2 C6 V. C4 X( O8 a" Rlet l 0
' E: o* ~0 [8 f( Q: ? `7 {while[ l < people ]& h& {! C% N, K* Z3 y' c9 m
;;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
! t! a! T1 E: [* B0 C Q[
& \* F) G% H% ]5 K9 Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 ^- [4 P: T; V! g1 R% v, O
if (trade-record-one-j-l-len > 3)
* o0 k! a( j9 ~+ h9 ~3 K/ D) Y1 t6 a[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-one2 o# d7 m, {2 n; P
let i 3( V3 z2 R/ D8 y! B) \+ k
let sum-time 0
% I6 D6 J% g, Z' i0 U# q( w/ Gwhile[i < trade-record-one-len]1 h3 d+ E* Y2 j( C5 F
[
# b8 x4 ` Y, p" _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 @5 [! v6 ?6 F' U. q
set i
9 m4 G3 F1 F/ m1 J( i + 1)
+ X- L& f' F# d2 a4 h) C4 w( Z]
2 B$ T7 k# c; c& D* ?2 X2 xlet credibility-i-j-l 0 d' `, Q, o1 y" ]# g1 d
;;i评价(j对jl的评价)
3 k0 ^# ]4 |, B( E' Dlet j 3
$ B! B4 M5 k3 T$ k4 v7 ulet k 43 K/ L- z6 s- N/ Q! v! D- N
while[j < trade-record-one-len]8 R' }8 G$ J. D
[
" J( j- `4 P, \( w: }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5 k; ]. z" Z! u9 g
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)
0 u8 s) x* U6 Q5 ^5 J# O+ Mset j
8 Z) x) g0 Z6 }/ o9 K6 j. w( j + 1)
5 w' O* r6 L1 D0 @/ C& w8 K; |]
( W0 N) \: l7 F5 l3 vset [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 ))
# b/ o( b8 \" H; q3 U2 H- r. D
' `6 I/ m7 ~* N
[9 l1 _5 [0 m6 A& @let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); ]9 c) G& E- }2 L2 e, t
;;及时更新i对l的评价质量的评价; W5 `4 P( I, h
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 \$ n$ D c4 w0 T; L
set l (l + 1)
8 k# X# z3 r' T$ R]7 @) \& j7 [1 Y4 y5 t
end3 n0 g3 j5 W) D6 b! [
% `. B$ V. ?# f. m7 E
to update-credibility-list+ p3 u! A9 }3 v5 Y/ }
let i 0# a7 p% r5 z4 a; M( |
while[i < people]/ o) t) c+ u5 n
[; [+ g' `* S# j. R+ F; B; o$ h2 K
let j 00 Z( O9 J8 e" A; N
let note 00 Y# b" g! d' L' L; v% l; @
let k 0
5 P. U7 B% ?5 @;;计作出过评价的邻居节点的数目+ {# l. B( h- Z o* |" W4 V( y G
while[j < people]6 Z- J( ]5 J4 @8 f3 c6 V8 Q* \3 }
[
+ c# I' l% k$ _ k) s& n6 c& P8 ~if (item j( [credibility] of turtle (i + 1)) != -1)6 f4 P0 I$ O2 y( ~3 q) G% u: \, \
;;判断是否给本turtle的评价质量做出过评价的节点* E3 ~8 D) o/ ]- w9 M b( W
[set note (note + item j ([credibility]of turtle (i + 1)))
v* b" A1 ^) [# W8 I1 L;;*(exp (-(people - 2)))/(people - 2))]' w: y( d; H; J3 p; D( m, ?
set k (k + 1)
8 O# h1 R8 Z+ r6 E+ i5 {, u$ E4 p- m& m]% L' l# R% G k% J! l1 h
set j (j + 1)1 x( _2 ]2 P9 s9 A4 _8 }* B
]
- w% @, p6 Q3 _set note (note *(exp (- (1 / k)))/ k)
8 m3 H* Q; m- }3 Iset credibility-list (replace-item i credibility-list note)
& b6 q' ?) S7 r! R' oset i (i + 1). z/ \# R/ i7 k0 ?/ H. Q0 ]+ ^
]! j! ]$ a) `- p) q5 W. d0 Q2 S
end: E9 i) x2 t9 o- Y# A
O- j8 W& C3 H' j2 D, F M: H
to update-global-reputation-list2 u, C7 E* f, [- y. t
let j 0' G+ T3 I8 V9 ~6 j; n
while[j < people]' ^6 u+ d0 s# t- ~5 h1 P$ _
[
7 `; V7 e8 V. r* j1 R8 W2 I. I& Z- clet new 0% T" y( W- h3 W- k ]$ ~0 ?7 D' R
;;暂存新的一个全局声誉7 W" S3 v, [) V
let i 07 {4 }( W5 }' D; L, u' M/ o1 D
let sum-money 07 D4 @' K7 S. I+ q7 ?
let credibility-money 0
1 l1 @9 t1 e/ a5 X+ ewhile [i < people]
: ~ z9 j( Y, A3 T1 R U/ O[
7 `& k3 C, {3 _set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 b7 \# v8 s9 g3 |8 Zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): L0 J" K0 H' W; m z
set i (i + 1): ~# y, V" ?2 x( ?7 o1 n
]9 T4 D$ c$ \- t5 I B# y: D. D
let k 0) i0 b7 Z4 h' m" |/ f
let new1 0
6 l' {/ c; C2 T/ X4 Nwhile [k < people]" C; I% D3 o ^; ~+ p
[( q1 D3 V2 t4 W4 y7 f: b6 ^
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). [) U8 n( }4 ^/ I: |
set k (k + 1)
$ y# G# ^3 r, h+ U$ d h]
4 Y+ Z/ N2 C' L: g ~1 |8 l8 _set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 ]/ L$ \5 }; X4 |& S. Vset global-reputation-list (replace-item j global-reputation-list new)
, ~. d( Y$ \' [' @5 m* ?( vset j (j + 1)0 U: u' @" q* i9 V4 P! K
]7 }; N$ Y$ X+ r W; K2 }% e2 W7 }" `
end* M& i' w: }7 e& `% _# p# b
, b- \$ X; }: t
* b' I- Q7 q1 k# O
) p3 P1 m$ w+ @3 S8 K4 n6 [* {to get-color
f& u& r4 n( E- L/ O
5 W+ ?+ p- T8 w$ v# Q5 qset color blue$ t- }7 m# f G6 Q. [
end
# \5 ?# z; w; O' g8 ^8 k& @ ]$ C/ a6 Z% X+ ~. x( [, s ^
to poll-class6 P$ r+ b9 n/ A; r% l; g
end. c1 z% g2 P$ z/ h3 O% K
) W3 C! U) O8 j0 h) Gto setup-plot1
8 l* H4 y. h$ ^& Q5 b% U
0 J* w5 X! k% `. |7 }) T( A6 uset-current-plot "Trends-of-Local-reputation"$ Y: G5 h; b5 q( O! U+ L
0 h$ f. b/ ]' @9 }set-plot-x-range 0 xmax
! c: K9 q" p+ \# |8 V+ K
6 ?! _" o6 ? \+ rset-plot-y-range 0.0 ymax
: x/ u: q0 @& O. a2 D7 Zend) z8 w: I- L0 B* z) r
) R- x- Y+ B C, c0 b* V z( tto setup-plot2
& R! y: s- R% ]) k, l* m# R! _ v
set-current-plot "Trends-of-global-reputation"
6 O9 V9 G: J% U4 v# Y! _$ R
5 b1 V. O O% `set-plot-x-range 0 xmax
, \, w3 o% K9 C% r: q8 f
' k3 O8 M' R8 G7 N: m2 `; dset-plot-y-range 0.0 ymax
. r: |+ _. ]' H- gend
, x* ^3 \0 k$ I7 O4 Y7 P) M
9 i; L3 [3 l" F: n0 F6 ? jto setup-plot3
3 T( r1 P' ^$ Y/ G2 ~4 a+ U/ ~4 y" Q* v: m/ R& Y
set-current-plot "Trends-of-credibility"4 `% P6 k% ?4 t4 n/ K
; g9 \2 w& G5 ~% {0 T* W; cset-plot-x-range 0 xmax1 h2 q- f5 x3 P: n" {
. j* Y- {: }( V% V7 @% R; Wset-plot-y-range 0.0 ymax+ m/ H4 H/ k- z. L5 ?5 D+ w7 c& N2 k
end' \. ^4 J9 Q" `& d* ?. B/ _4 a
' O5 e, _; z# a8 t: a, z3 M* ito do-plots
3 F/ u% z) x6 p+ D4 Sset-current-plot "Trends-of-Local-reputation"6 c, u6 \1 C) x4 |# S r
set-current-plot-pen "Honest service"
$ H7 M2 W1 M3 t3 G5 Cend$ {- C% Q5 A7 B2 `+ n# p& t
: {* Y* r. } s[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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