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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" ~2 P" Q9 N$ t
globals[+ ?& V* i( o& x: x( _4 v8 N
xmax
% s9 _$ O" b# I& \: q2 qymax
' I- o1 S! @8 J. Q6 Dglobal-reputation-list8 J; x1 f3 H1 m
% M/ Y+ A( [% f# Z4 L;;每一个turtle的全局声誉都存在此LIST中" n6 G+ Y) F0 d2 ~7 Z
credibility-list
, J5 |% t, f7 J( m;;每一个turtle的评价可信度; N# u( |7 Y# v) f! M
honest-service
8 K, R1 R4 @" E) [2 ?1 N7 \unhonest-service& T+ y6 r7 n2 ^; M
oscillation
9 i; f& c# b8 ?% H" l n2 z8 wrand-dynamic+ W/ u5 F7 ~4 G* F
]
* }. [, q: @, k" U0 }6 T9 M2 L7 v- k O% w! H. ^, K' t1 n) }
turtles-own[9 c' B7 r) Y4 o$ E* m
trade-record-all
! f, G" F1 D3 i8 g& M/ {/ L& \8 u0 T, d* K;;a list of lists,由trade-record-one组成
9 ]9 ~ s" {) [/ w9 Atrade-record-one
{; n4 J( A% U! f/ d;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 e+ j6 `9 s" {
! D0 v6 }8 ~* q7 U3 ~8 G;;[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]]( H2 y- ]; L! W- Z% n8 c* b% C
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]
+ {: D( ~3 v7 }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
R8 j4 J! m0 Y4 C, ]8 }" V. Eneighbor-total2 k/ D/ @2 i$ l9 ?& w6 S
;;记录该turtle的邻居节点的数目
: \" X+ f; ~& u7 }6 u- K- Atrade-time
7 e9 w1 o# Z. X; \;;当前发生交易的turtle的交易时间
, j! g* h9 g& c& X n) H& r g }; Dappraise-give9 j/ C/ e& S1 K, N
;;当前发生交易时给出的评价$ P* S" _2 E) b. Y) k+ F+ f
appraise-receive! w* c" H% u5 |9 a8 j2 U
;;当前发生交易时收到的评价
! H+ B+ n) P! H. sappraise-time( T* f1 m% h; C$ w& s& ?
;;当前发生交易时的评价时间* ^# d# }1 W4 L+ e6 }
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 }; m2 R0 b8 @6 v# V! ptrade-times-total
2 L' ?) u9 d: A3 t;;与当前turtle的交易总次数7 U/ R: a/ y% W. c1 M4 e0 ]' j; }
trade-money-total
9 V+ R% V O9 X% Z k2 H: W0 p;;与当前turtle的交易总金额# F9 D" v h0 A5 |) K
local-reputation3 {# c* @# k- c$ Y! v' ~, j5 s
global-reputation0 B" i* J/ S; O3 u
credibility
/ [% D' I( k* H2 I8 H" q# S8 P" X" ~;;评价可信度,每次交易后都需要更新
! C# X6 \" q3 f9 D/ w, O2 Bcredibility-all
' [: B4 `$ H6 H: q1 a;;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. c# y) P) T9 t$ z" u
# U/ \3 y% ~7 C9 d [6 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# c3 ]" t4 |: O( E2 j% _
credibility-one0 o- S0 V7 a9 |3 w
;;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
) J0 o3 Z- A4 |1 Q' [* k( s$ xglobal-proportion
% Q- S- j9 ^, p, R8 e. Lcustomer* h, h% y+ j5 N% T
customer-no
) `" N1 R+ l9 Q- @ xtrust-ok
* p! W" t& P7 F" @ a7 g/ ktrade-record-one-len;;trade-record-one的长度: n, P2 x7 c" H: a, g- n# B8 i7 O4 C# j
]( A4 h. \# G' {% x% w
5 S6 D5 [/ T. R; e% v: K
;;setup procedure
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to setup
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4 d2 a) c( f5 dca
# y' _0 u3 n7 W- F8 w
9 W' c2 b0 {' e) ?, B$ dinitialize-settings
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0 b2 K- E2 X# u2 N3 Y( \* n! ?crt people [setup-turtles]- L2 }) R5 h9 s- _
1 P9 u D5 z& m5 m
reset-timer
- i& q& a* Q! G i8 {5 E
* S3 s+ F5 a- E# c/ Jpoll-class, c9 }% `( A3 Q4 V
$ Z+ ?6 y/ v" p$ Z1 i/ J, T4 fsetup-plots
+ w# Z! `% ^! n3 N0 d" }$ \$ M: H0 v T
do-plots
/ Z: A) N/ L) fend! ~; C6 F4 m' }0 R. ]9 V
" j/ }7 x7 Q* t4 }; c! D4 I' e+ zto initialize-settings+ `6 L! L' G4 I
$ }, ?3 W5 u4 @! t! O& O
set global-reputation-list []2 B) V8 q! P* A. d
& t3 _" s2 w) X
set credibility-list n-values people [0.5]
" X+ C; A" r2 X, h; T. o7 @! [) g" q5 @: k8 t4 f! }5 h% C
set honest-service 0
' x1 s4 _' m' \% Z
5 X/ U$ ~. C& G" Y& I( L4 X# vset unhonest-service 0
. s/ O% f' S7 A, a6 \# X* _, E3 S( l* \1 n' W# B% i
set oscillation 0
: B, o! U3 W, g. u0 y# t6 |. ~ O6 Y( m1 U3 |4 A4 Q* U
set rand-dynamic 0
) P" {3 V8 h2 xend4 M4 P8 q x [. d4 I' t3 d W7 N
! [0 K3 \2 r6 _9 a% X; A. b3 j7 ]to setup-turtles / Q4 p3 v3 w8 S3 @8 A
set shape "person"* @" X A) A2 a; r4 p; R( u$ e1 u
setxy random-xcor random-ycor( X9 F; R+ [$ O8 k/ v
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
0 i4 l; R& A* p
& M* E/ |& y6 P% Dset trade-record-current []
+ f+ m" K1 G" ~; k: | q( [set credibility-receive []6 O D2 u" E' g$ o& o
set local-reputation 0.50 M) c+ F: Y* p' v+ X
set neighbor-total 0
8 M. Y: P# P% v9 |! x" J& jset trade-times-total 0& _6 Y7 i- M2 B6 J* f) B$ _
set trade-money-total 00 X4 R! V+ D- A' i
set customer nobody
- Z7 n, }3 N/ r: F4 Y9 ^set credibility-all n-values people [creat-credibility]4 o; q' D8 `4 p( [+ x5 o
set credibility n-values people [-1]
. \6 R/ G- w0 s Jget-color
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end
0 v3 Y8 t' R: Z$ g
2 ^1 N+ m/ B4 g+ V3 k1 n ]1 _. }to-report creat-credibility
+ u& ~9 T! B/ J! R, dreport n-values people [0.5]3 h& n' a) n( `* ~. Z
end
1 K0 k% @( o) A; m4 F \5 ]! u2 c, M9 f- f3 K' _
to setup-plots% y: M3 g3 B1 H2 h& e. i* n( s+ X
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set xmax 30
|& f1 O- R( g5 u' ]' O+ ?; w2 @
2 I8 l8 n4 X1 z, @ Vset ymax 1.09 a: T' }$ e7 b9 w
' c" m+ G# }2 A! I0 f* A6 b9 Jclear-all-plots9 P3 W5 _ t! @6 P: g
9 v9 s% D9 ^4 W& s
setup-plot1 |; e U1 P7 D
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setup-plot22 K ]8 v, x6 _) ?8 N& ?
* x7 P, W2 X3 V% t: W0 e+ ?setup-plot3
4 q5 Q, w7 X: x8 C# O3 w7 b# hend9 H1 C5 `8 u2 U! g: f7 |$ ]
" M& W! Y n; y' Q3 p( ]' e;;run time procedures
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to go
' B* A3 m* _: n' U2 Q9 \9 c7 L2 E1 p6 s
ask turtles [do-business]
( \* Z2 u2 M4 f' ^+ H3 eend
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" j. y) `, E+ ^& _% U4 x& [to do-business % e6 l5 Q$ S- `' Q) W
5 z! `/ q5 t( t o
! w2 K: T! D( r& c; k- J X$ yrt random 360
: Q# D; K4 Q* g4 H/ E T( L9 G9 y a
fd 1# H/ L# C p* C8 Y* p: i8 M
; O) ]4 T. G8 n* [# O5 Y. Vifelse(other turtles-here != nobody)[: N3 q2 Z3 N! L' T/ |6 ]
+ Q) k! ?, f7 x; R s
set customer one-of other turtles-here! [& X( [8 N3 V( l1 r3 y* Z
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;; set [customer] of customer myself- i2 F% ]# a6 [9 c! O: b; N
8 a1 K; [( w, \2 Y' P: A ?set [trade-record-one] of self item (([who] of customer) - 1), \+ n1 a( u9 c: q/ b0 r
[trade-record-all]of self, d4 o) u/ `) U" r( @
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- j2 s! H- u$ Q- s3 R [) ^
+ p0 ~! Z8 b3 _set [trade-record-one] of customer item (([who] of self) - 1)+ {( h. `( }- L F6 E8 a. W
[trade-record-all]of customer
; a# l/ z- O v7 k* R. n/ _
; O, d6 X( b0 X' n4 Wset [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))9 [9 h+ E8 _2 t$ N% E8 n
" P& @. i2 A3 qask self [do-trust]
& L2 q X- Y4 _0 n: G: D;;先求i对j的信任度
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if ([trust-ok] of self)4 a: k- ^2 X' r3 K
;;根据i对j的信任度来决定是否与j进行交易[
" A% q" `- R4 P9 M0 t" Nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" p8 b6 _6 G& @6 _; R
# [2 t2 A* Z( }) ?# v[$ m( u+ j2 v- @- l4 W
1 I2 t6 [5 X. B4 Q3 E- J# g Qdo-trade0 g- V$ ]' J/ x) D$ a
: Y2 r" i c" e6 `/ H) Q9 r" gupdate-credibility-ijl8 X9 ]$ P) P6 H+ _
$ {% {. i" e+ k9 `, u R3 b8 pupdate-credibility-list
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- {" }) q4 n, E P8 X/ G/ rupdate-global-reputation-list% W9 W: b5 p7 S0 x
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poll-class
7 ~% A9 F2 w1 d8 N6 ?
1 R2 R7 U# z: V' a) C H! W7 dget-color- U8 N0 i w- ^' D4 D `- p4 P( `
" ^1 x: l+ a* Q* B# h2 I]]9 Y3 Y* u' T; c" A* j
1 D/ Z! k( _( h5 V6 p( r;;如果所得的信任度满足条件,则进行交易
+ ?( n, M2 S7 R: X- A& e) n7 `
[ d5 _& x% ?: t8 T% E/ I. i
8 m; L# _3 S# }* yrt random 3609 y5 H8 [# q* Y6 ?; x7 `
9 F) g3 W; ?0 R: b& y& y8 a( K2 Q1 @fd 1' x' j, f7 N! w0 l
B+ g1 z# t# ?; H4 R
], P0 o" {5 P; }9 h; m& X
9 |) v9 v/ l2 Q* `7 @% Oend* ^8 P. n& e: o @1 p6 t
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to do-trust , a g# \, A3 J8 x& Y; Y: H3 S
set trust-ok False
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% c9 H7 |0 S6 C7 f6 _$ i( R& Dlet max-trade-times 0
0 p. T0 z+ ^0 b3 Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- @/ b9 N5 s+ }' n
let max-trade-money 0$ Z/ ^) R! M4 v0 {
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) ~8 Q1 o- u- F* H
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 W+ E3 y) l5 D9 ~, o
" Y3 L& C2 [$ j
/ Z9 e" C; i# Y- Q- n( T* ~2 `get-global-proportion
- _2 [) J& q$ N/ c# Zlet trust-value+ \! n3 j: ^- 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), K3 L1 C; r# k1 b# C
if(trust-value > trade-trust-value), z/ s4 c4 e% s: J9 p- v
[set trust-ok true]
* q' _6 M, G8 t) jend
% I) J4 W( n" x6 m& j( ~! A+ u5 R( D
to get-global-proportion
( b: p" W2 | z3 h, v0 a _: yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 h$ _* `) T" y) e) O[set global-proportion 0]
+ j6 M; v3 [$ L[let i 0
, f/ E& G6 b D- N& D% m8 Ylet sum-money 0# ]6 W# v- B: y# ]3 c9 L
while[ i < people]% I, d. o1 A7 ?% j, n3 h& |
[
7 I3 T2 [# B$ E+ Z! q. l8 vif( length (item i; _8 n% O1 ?! o% \
[trade-record-all] of customer) > 3 )
# H& I5 ] E, i4 N* p5 \/ u[
. ]7 X1 w% z$ d/ ?% g9 Z& e/ j9 z* U! q* Bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 _2 w, F, ~# D" l
]# Y" s7 s& N- q( W. N) K
]6 g+ _$ M' T! R! D/ X
let j 0- l/ c3 C6 ]& L
let note 0; }8 e; O. o& `+ b! p3 R3 b
while[ j < people]& H- h3 Y+ U F. q
[' Q4 i# C5 T. k7 t
if( length (item i
7 r5 \( q* y! Q[trade-record-all] of customer) > 3 )
F( U' g: i" f5 l[4 r/ ~8 a% n; O) N6 Z- I
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) D1 f% U+ k z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 k' [7 d# g- \[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 G2 @9 p1 y% u$ Z]
% B1 N! W# Z* T! f' U4 a]2 Y" L5 @. y ?9 _1 h9 ]4 S
set global-proportion note% z* R8 k" P! W9 H2 j
]! _! A0 ~% h7 V
end
7 N5 L) i( F. ?5 m' R
# G0 Y7 T1 x; w% j W& [% O) ]to do-trade
: g- x. E& I- y5 t;;这个过程实际上是给双方作出评价的过程
9 k& B1 i% T. {9 Z' J X" Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- }9 _- n7 I# [! X8 Q. U# _% uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 w) W0 s- h" m/ R% M' ?set trade-record-current lput(timer) trade-record-current9 K/ W6 z) ?. A, n# V% D
;;评价时间
/ H# @1 H3 a$ t% b& g7 S& d" iask myself [. m1 u) P8 e; L& b- B1 o- E3 y1 G
update-local-reputation6 d, H2 l' J& Z0 U
set trade-record-current lput([local-reputation] of myself) trade-record-current
. r8 S9 c8 |: A5 e]
( g; k* b- O* i& Q2 Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
h9 s+ u" `/ Z, Q. Y;;将此次交易的记录加入到trade-record-one中# ? ]( o! b) l) _+ J8 S1 e w
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 t$ ]! v- U, T; A2 Vlet note (item 2 trade-record-current ); E/ r3 }6 _/ M7 [9 @
set trade-record-current
2 F9 T u; T8 F, ^(replace-item 2 trade-record-current (item 3 trade-record-current))& ]" a1 d, I2 p& P1 o/ Y4 z8 e- U' E
set trade-record-current
: f1 y" c6 n! l' \ Q/ A" p(replace-item 3 trade-record-current note)( Y# d) }% d9 ]
! }0 _2 t; f" ]" r; D
$ M: W. a" K" @6 a8 x. Hask customer [
0 m' g6 r& _6 {, x9 ^ f% [5 Supdate-local-reputation
, ^8 A1 r3 f( L. J3 Zset trade-record-current
: W4 _$ b' a% `+ z K% E# B2 F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / \! H+ \) H# p8 f' x2 A# A& H8 K
]
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2 p, m3 @8 i4 ~5 Z( h9 x
9 B1 D/ Z. }- R% lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, B- A+ Z% Y: h4 E0 J4 |
! Q% |& F3 g8 Z# j2 A% B8 G) \set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 _) [# d" A7 L9 `' }8 x7 c! y9 Y+ ]
;;将此次交易的记录加入到customer的trade-record-all中
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9 I+ Q; I" m: _" N5 c' B0 s% Lto update-local-reputation8 x2 c; _( ?/ R
set [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3 : S8 ^5 O8 [! b
update-neighbor-total
( G" Q9 c$ K# k* |& H5 U7 S5 Z;;更新邻居节点的数目,在此进行
" H* X$ K' o p# x: A" Jlet i 3
) G ~8 f. M7 S" [let sum-time 0$ j5 j6 ^9 w* ~2 J
while[i < [trade-record-one-len] of myself]
7 ^* e A* I4 S5 X[, c! O! ]; i6 l8 | D8 \4 O) q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 J3 ]4 k. C6 V7 a& ~) Nset i
$ E) O4 g" H& _( F( i + 1)
s! R! A- _% e; B]
' {. g' ]! m% v' ~+ \8 S4 ^let j 3# t3 d2 v" B& S# D2 y/ A j! `1 L
let sum-money 0$ ~( a* l9 G5 L3 _& M& c8 ]' m- M
while[j < [trade-record-one-len] of myself]; ?. A3 B) O$ L8 ~ [( w/ k
[; f- F) z% I' } H
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)
# w# W7 ?+ d2 s7 mset j
9 X8 D2 m' K! o/ d) Q' m( j + 1)
2 v: O* Y; n3 h$ X3 E' @& g]7 B9 ^* z5 u) f: C M8 O9 \* l
let k 3
- f1 `7 g |" j9 i n( _let power 0; l7 \4 Y. {4 G7 i
let local 0
! V+ w8 I8 \* D# k j3 G1 {while [k <[trade-record-one-len] of myself]0 {# Y" j. A( n' m' ^$ d
[8 m& d; G1 X; b- I& i( x* ^
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) . ]) y9 `0 b h7 x- K$ k
set k (k + 1)
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set [local-reputation] of myself (local)
1 {* C1 h5 W: v& z7 l9 q/ o; a9 \end: M9 L# _& Z# f& ]$ A
U7 _% {- {2 Y( O6 ?
to update-neighbor-total1 R: j( ]& R2 e& t4 ~! \
, P$ ^) R' t2 U' z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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# Z5 }/ O! _) j8 k- Mend
+ C! O+ @) L" N Z' n) l0 ?' R* x1 }/ b" ` W8 H; Z1 I
to update-credibility-ijl
* }6 m9 N+ r2 M& v* d$ ~) [5 {- R+ p1 N: v: ^' H
;;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。; @7 D7 m# h2 G0 w+ N
let l 03 G4 R+ |6 H7 V1 V6 r* d
while[ l < people ]
9 L( d" l2 b0 K, B" }( c6 \ ~1 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+ r7 c( m3 o% K* F! ]1 D
[
+ x9 m! B- t8 rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 X$ N, i, M- n( i; `2 s
if (trade-record-one-j-l-len > 3)
9 A* K! v6 V9 O; _5 Z, n7 T: d[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
* }7 D, n/ f' o; K. Hlet i 3
1 {0 [" r* M K0 m6 M2 X2 Dlet sum-time 0% n3 {, C f. T/ r6 w) O: w
while[i < trade-record-one-len]
& m- T( A$ p+ h: F7 n3 j/ B[
* u" f# Z2 x" N$ n7 |set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 r) F$ ^7 f% s4 T# w& `" ?" Vset i, O0 J! X, v7 ~3 ^ z/ w( y ]0 x
( i + 1)$ O; r, @7 ]' ^5 m2 i- ]
]
# q3 w6 r7 D& H+ zlet credibility-i-j-l 0
( L7 l f+ T8 S;;i评价(j对jl的评价)3 M" f/ B5 V- y2 B5 d4 X7 u
let j 38 l$ G9 ] T+ d5 J
let k 4 L {2 ] n+ U) v" Y* s
while[j < trade-record-one-len]
; B2 u! ?, c9 k$ J- @: ~6 K[# j: b. ^! }1 G* h' z
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0 E ^4 F3 B" r N+ \2 O
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)% ^) Q: l* ^1 A, z
set j. C. [/ a, L6 ` B" a+ O" R1 s
( j + 1)$ a7 u( ?/ @8 N7 v- p# ~3 K) x
]
' R; M5 f3 y0 [6 l6 fset [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 ))
) U% {+ ?% F( g; h! n# ?, N8 w3 X: s- o3 r
: G% j T8 O/ w8 q9 `5 `) ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 A3 `* l; W7 e: \, w' c i
;;及时更新i对l的评价质量的评价2 Z* J% x$ F* a0 H( ^4 w6 I
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- T U' c3 p$ ]5 M7 d+ P4 p- G
set l (l + 1)
" M. T& Q4 x( {" Y6 C& f]5 z7 V c" L9 m& u- d5 T7 [7 G( ^
end; X; V$ o4 z: g2 j w3 Y) h
; n; }6 }( ~- y9 u! ^ U" p/ J6 zto update-credibility-list
+ |+ R7 u/ S+ d6 I) Zlet i 0
$ G4 h) I ^! n. r; v0 x! T' awhile[i < people], k" @2 ?- a1 M4 u6 L
[- \. E3 x4 U- R; r
let j 02 v' x$ a& f0 Y- Q- ^4 r
let note 08 J7 \/ |% ~( \
let k 0
2 p$ V' y7 j. v( o- }- ?- o;;计作出过评价的邻居节点的数目
5 p9 E" H; F2 e9 p4 k$ Gwhile[j < people]
& _6 b) s5 ~0 y' [1 L7 |' b9 C8 m[* Y) K' W. w/ s% H
if (item j( [credibility] of turtle (i + 1)) != -1)& n7 e! e* O& X) J* n/ E; S Y3 p
;;判断是否给本turtle的评价质量做出过评价的节点
5 ^2 N1 S3 s: L3 H0 B1 l* ][set note (note + item j ([credibility]of turtle (i + 1)))
: ~' m. l# b! E6 C- Q$ K;;*(exp (-(people - 2)))/(people - 2))]
: W- V' g R) W: Y ]& v2 d Aset k (k + 1)
! T& m6 y6 M* f% g, ^8 ?! g]+ H$ l- U8 B7 q W$ C. F4 h0 p! g
set j (j + 1)+ v) N4 @5 a+ I' B4 R" j2 R
]8 y( Q+ i+ n3 R9 |: R1 {% R: q3 Q
set note (note *(exp (- (1 / k)))/ k)
8 I, y7 Q. n; j, r' Lset credibility-list (replace-item i credibility-list note)
7 B! O4 `' X/ b0 N8 V' c5 M& xset i (i + 1)- e8 \/ G1 _) {" B7 N
]% p2 i, R i- M( y# ^
end8 n8 Y2 Z0 D! @6 m& o/ t( n: _3 `: ]
9 S: N, s" W, Xto update-global-reputation-list0 r3 _8 b: n% U' Q1 Z, r2 a4 x
let j 0, y8 W- n$ V8 p$ B; [. h
while[j < people]
# P5 k9 H* i" e9 f; o[
3 k/ v. w( ^& X6 |let new 0
2 m/ ^; P/ b0 f: z' ~;;暂存新的一个全局声誉( K2 r+ f: p y5 W% y |
let i 08 y2 }' z; d9 m5 F9 D# J+ y/ p: ~" f
let sum-money 0 z. @8 J8 b$ s6 \& B6 Q! a5 P% _
let credibility-money 0
! \ F/ G3 `# z5 d2 zwhile [i < people]' {* a$ e9 h8 S9 m, s: I
[' m9 q- t' s* p; `
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& D, F' x9 [6 E/ q" jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- f! K' N1 G! K Y( G
set i (i + 1)& B! _6 I+ }6 J& T
]. D4 K7 ]9 v+ j2 l, K
let k 0' G, ^- I9 J; D
let new1 0
c3 ]3 L0 ]% l) U% Rwhile [k < people]! Z4 K4 I9 y0 s+ k9 V
[
8 Q6 D9 ?! ^' d# H0 G8 kset 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)
. f W( J$ Z, v/ e5 Rset k (k + 1)/ Y; p: z- T5 d' z) V- F
]$ H: m A/ n/ C# ?+ h8 i7 O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' J6 z6 e: ^: m) {& ^9 F i9 j
set global-reputation-list (replace-item j global-reputation-list new)
- D. J0 j3 ^- k9 e; a; _set j (j + 1)
& n4 y- ?: g8 m9 l R: []
0 c5 A8 W; V ] ~; z% v% Bend T1 Y( H6 x0 b3 [" a' i
9 [, g* t! g0 c9 ]) I3 J s
! W2 w! l* I' T v6 h% r
T3 ?! ^! K' o
to get-color1 y$ Y0 F L7 O: `; B: c8 |
* o% E$ \, k4 ?2 |
set color blue0 r$ _+ ]0 |: B. P+ d
end
! ^, L* }" \1 u- k$ d0 Q9 {: b6 W a1 A0 n
to poll-class
4 R$ Y+ ?! `( L C$ uend7 _! N2 K! P8 F f0 B% ^! R% z/ z
% m. M4 b% n9 `: Sto setup-plot1
% X" q) C7 k, @1 S+ B% b1 t
' e- d/ _# w6 _* X8 I5 jset-current-plot "Trends-of-Local-reputation"7 \+ D6 N- Y. g& m% J" ~
: u* x. p3 }# g+ n( b4 o" v, v
set-plot-x-range 0 xmax
; B3 n5 T3 k. ^$ S* S# k2 q" F1 A6 \7 D4 G5 i
set-plot-y-range 0.0 ymax
8 ^" K+ W& l: {( \7 U: Rend" p3 d( X/ D! A! ?# s8 g
# d2 `+ {, g5 p/ yto setup-plot2' k* C7 ]6 F- A) c4 I; }
8 w1 c; p A6 D) C" \% L- `
set-current-plot "Trends-of-global-reputation"2 F# Q; _, ~* d: O: ^: U
! B% @' c% f2 @$ y6 t3 G( ]% A9 {set-plot-x-range 0 xmax1 a- v) W, \$ U* U4 A* H* S6 `
" | c p/ n q- s+ n, Uset-plot-y-range 0.0 ymax, ^. ]6 B: z8 r2 z
end. L( r n" Q; E& R9 y
' n; {" a* z' J% Z& T
to setup-plot3, H, H' [( G2 ?" x" l$ C' `$ K
9 c( e8 I) a% j: ?1 e, I8 E4 eset-current-plot "Trends-of-credibility"& f3 q, ]: T2 Z0 z
8 H% z2 T3 d& B& K2 r6 vset-plot-x-range 0 xmax$ K* d) m( T* ^3 k3 {# E
( l! C& n4 B* iset-plot-y-range 0.0 ymax( V7 s: c, _ S0 t' L- g. H3 M9 o
end
$ N1 a6 `$ Y' I7 t5 [* W
0 h& D" K: W4 O: {1 R, p' a4 [& fto do-plots
: U) D2 s. x' l( sset-current-plot "Trends-of-Local-reputation"
, |" e* \7 u, sset-current-plot-pen "Honest service"
- v3 u# Z. E* n; bend
: Y$ u" E# u; e& N& L; U! ]5 E# v4 O% l
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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