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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- J7 p/ p8 V: g! }7 [
globals[
t; o$ t- [% T3 exmax, |: Z$ B- y) c8 a8 J/ Z
ymax2 W9 M# K! i3 ~- O6 p
global-reputation-list& G, ^3 n4 ?# D
6 j+ A( w9 y1 J6 s3 ]- g" n& f;;每一个turtle的全局声誉都存在此LIST中6 {* G( R. P- F) i P8 V
credibility-list
, p" M8 X$ y: j. }; c6 k;;每一个turtle的评价可信度6 E9 H6 }7 L9 d! H5 i3 g
honest-service
: b# r: P, E( p8 I) q, B. }unhonest-service
( I+ V& U" g4 x& v" h$ u- k7 ?- B/ L( Moscillation% ^6 `+ s: ~. `
rand-dynamic
& [7 U3 H7 c# J- h# U9 D' L$ Q]
% g: W$ }! i# w, }8 x
! s+ x5 x5 F9 u( e0 \turtles-own[$ h" B, g6 L- W
trade-record-all2 L8 o) v- x- g0 R3 m+ I" d
;;a list of lists,由trade-record-one组成4 L1 [, D, J7 ?( X
trade-record-one( x' i& k& P/ b% T+ Z5 V1 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
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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]]9 @9 h) F1 M9 U( v' l# w
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]
! o. R o& @7 I4 P: pcredibility-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list2 X) L; S8 z" L6 f
neighbor-total2 G7 t! X1 V r/ @5 h, W
;;记录该turtle的邻居节点的数目4 y/ Q. L8 F' S1 v
trade-time
+ k5 J* A% E4 i6 [8 J, M" F;;当前发生交易的turtle的交易时间. ]) |8 i* f* i
appraise-give
4 T# K6 r6 w) }6 y$ M;;当前发生交易时给出的评价
/ P$ `$ [7 a. v3 }0 y% g5 E# w4 ?: Nappraise-receive
5 F7 ?! k' K! s0 K;;当前发生交易时收到的评价" c7 ^8 b4 D1 H4 g
appraise-time
) ^; P- m- \: I. g8 i;;当前发生交易时的评价时间7 g# n6 E5 k! b, k: m
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
H. G5 q! K& g8 C% j$ ytrade-times-total' ~- F* A% C2 w* b$ E; n/ F
;;与当前turtle的交易总次数" v! }8 C9 _$ a4 C
trade-money-total
/ [, `* W( K8 W; V;;与当前turtle的交易总金额. X+ L9 B. V" l6 a# g
local-reputation/ ^- i' ?& P3 h& J; }8 X
global-reputation
( F! A, n1 n& @* Z! Acredibility
; }* Z1 W7 R3 n6 s4 P3 Z# Z/ T' R;;评价可信度,每次交易后都需要更新
2 N* `$ D# Z ^4 h. N' c. Lcredibility-all
; A# ]6 E. W4 A/ [& Q5 x% l K3 Y;;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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, k/ q. d" B/ J; x;;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
- h$ s0 h% j8 I/ rcredibility-one! O& ^# \5 [. H
;;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 o! I7 o" h* u: F5 o' a1 L. ^global-proportion2 j) @0 y3 N; Q( I2 w% Q
customer
) P- C- B! f. k. Icustomer-no" d/ W1 t* R1 {1 T3 v
trust-ok8 r1 Q8 g& {8 H+ ~- ]
trade-record-one-len;;trade-record-one的长度! `4 _; S8 c7 }5 {* F5 J8 u- l
]& r9 c: ^5 `+ L F
: i. h h) @5 Q& l: S" f% Q;;setup procedure$ V+ I- T& S. R6 g( V& W- C
[* p- q- C: ~' o6 Jto setup1 D1 z! x! l- B( K
% p9 b& T3 c7 f# `, \9 p8 @ca$ v+ o, V8 p7 m
- G: D2 _- |, L& g, \1 ^1 L
initialize-settings; G( A) b s1 ?7 t
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crt people [setup-turtles]
2 _8 Z2 e& c3 h2 u/ C+ i5 b
3 R' P2 N& l! Y+ o2 {& vreset-timer
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poll-class7 i3 p# [" [9 F, y
$ S/ J& t) t7 f1 hsetup-plots8 I' Z$ g, N4 G3 e
: O2 e/ z. _* j1 B# Edo-plots
2 |# S, `! w+ O0 ?' T4 S; z+ w" k: uend4 N( g8 ?, `, N
4 k& `9 c) S8 u: g) a5 q
to initialize-settings
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set global-reputation-list []9 X- j R# X9 B A1 x4 y+ y# I
0 g# E# p: L' C, V: } E# P: n
set credibility-list n-values people [0.5]
5 Y% W9 T% H+ y8 d$ N/ h; s2 U* G5 ?6 b' T1 p- }1 y
set honest-service 0. N# ~. k; z" D# x
/ ]& B2 Y q2 j- f5 F) @set unhonest-service 0
1 W2 o1 D) H/ k% O
D3 _$ J" W+ E( [set oscillation 07 y5 q( |9 k- L; m
) y$ b& ~) ?$ Uset rand-dynamic 04 k. p9 D# H5 q$ k) v: }
end& C7 T: U8 O/ v2 F( ]' y+ \
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to setup-turtles
! a$ t0 q- }: Y! \set shape "person"# V# c% u# b( A9 ]+ _) m v
setxy random-xcor random-ycor
w0 A% F3 g& G6 oset trade-record-one []
r% o" J. ]* o/ E
+ S! l& ^" K# f4 C! @- K+ m8 Aset trade-record-all n-values people [(list (? + 1) 0 0)]
4 C l, L4 s) N7 B* R, b; {/ I9 d" @5 ^+ i; Y; I+ I
set trade-record-current []
# j3 F9 O; P- b7 |% f) k2 f dset credibility-receive []
1 k7 {, d! j' `. ~7 Uset local-reputation 0.5
/ s* y* B+ v& |7 k) g4 d, Sset neighbor-total 0
6 t, B8 E8 P8 f6 A# v0 tset trade-times-total 0# Y3 I. a3 ~8 i7 @7 d) V& C4 K
set trade-money-total 0
4 `+ Q0 m4 h! `. gset customer nobody6 M* s, J0 k4 U% }7 y
set credibility-all n-values people [creat-credibility]* e1 ~" Q. Q1 r) Z* e
set credibility n-values people [-1]) s1 p+ \7 N) `5 h
get-color8 I# _) z6 ^1 |- [2 |$ n0 |$ M2 O
5 ^/ }9 i4 M; O" r3 x
end
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to-report creat-credibility8 l' M2 E# K8 ~$ b! Q3 l0 d
report n-values people [0.5]& s; z- Q* x" C( V
end
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5 } B3 g0 g) @5 P2 _' z( uto setup-plots
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# |) I" X% x9 K2 }" a) uset xmax 30
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set ymax 1.06 R( @2 n+ _+ p; F! s& Y- m
4 A2 r% o; g- Xclear-all-plots
$ Y; }) f4 q1 j8 x7 G) w
' M3 w" P M ~* K, q* ?setup-plot1" R8 k& R* ?4 X
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setup-plot2$ g% g1 Z1 B3 ?2 t3 Q6 T0 {, [$ J
% K; T+ U% @: }% e. zsetup-plot3$ _4 L1 S3 z8 a
end
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5 m5 o$ A7 I. A1 ~- d. t;;run time procedures
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$ f& {# |+ c* G2 Ito go
* l- N" E' E$ p: G: q5 i, X. `% [
' z6 R5 M. `- O: e( r7 r. R3 Aask turtles [do-business]
+ k0 ~! {1 l M& ?end
# y; G4 o4 t$ B. O: r: K9 v1 M' V# V( n
to do-business
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0 K! g9 r$ V O1 W9 w# v% @) f" L5 [
rt random 3601 R8 G# z* |1 T- ~1 s3 f
. p& \$ } H! ]: W- x2 Rfd 1
6 _5 E& ~6 k- Q6 y8 j/ s1 X- B3 r
ifelse(other turtles-here != nobody)[
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$ b( `2 Z5 o- A# D$ m) |( eset customer one-of other turtles-here! O* V2 [% |0 y( U7 y
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;; set [customer] of customer myself; f0 u, M& e4 {: d
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set [trade-record-one] of self item (([who] of customer) - 1)
7 a5 Y# u9 \% c[trade-record-all]of self' d. C+ N% M+ X+ X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
3 c, r1 l2 [. n" I2 d5 q
& y* C$ |) W2 t8 X s( H/ uset [trade-record-one] of customer item (([who] of self) - 1)
3 e# ]1 |1 M$ x! M8 \[trade-record-all]of customer
! E9 J& ]2 t- _, N1 D+ N2 z( i3 z/ n) q8 l+ l! w. P7 _
set [trade-record-one-len] of self length [trade-record-one] of self
" {* F, |0 T: c) F% \; u$ Z
2 b! ?6 B2 t ` x; u# n/ Pset trade-record-current( list (timer) (random money-upper-limit))6 v% l% w# D9 R( e9 C4 e% b! H% l
0 l4 K( D @1 T+ K& b
ask self [do-trust]
3 ?9 b/ f' s- }4 O2 v1 q;;先求i对j的信任度
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7 D }3 b) Z, R% S3 p! B- nif ([trust-ok] of self)+ R/ F+ E6 R& T: S, [6 A- _7 F: K
;;根据i对j的信任度来决定是否与j进行交易[
9 @8 `1 e$ ?: h: jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
4 C; [( X! i! I3 M
5 Z- D1 ], v' ^[
Y! L( A5 O% p; q
4 ? g* Q2 M, W+ T4 l: C/ p3 `do-trade0 K# j; u' L. }) E! ~; ]& i
1 Y2 H8 g8 X; C- b5 L9 z5 Qupdate-credibility-ijl% _6 c: c! _1 @) M
; n+ B# ?: O4 X! m
update-credibility-list
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2 M' n5 h3 J, bupdate-global-reputation-list
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" k( P" S# e; y1 t4 fpoll-class C \# h) _/ b" v. [; r# r9 N+ F5 f
9 p! X; x1 l% V8 hget-color
: ~8 g& X7 B; b0 D' m$ a5 v; O/ r3 }5 H
]] T# }5 `8 G1 r* i& W& c
4 [+ e, q, \5 m1 g;;如果所得的信任度满足条件,则进行交易
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[! @+ b; O( O! W4 n! Q$ l
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rt random 360
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fd 1
2 ]7 N$ \" a- E! R" u5 r b6 i& W, `2 ^ K3 j* p* u* S1 d
]- k! X' }$ X9 M/ T3 C. K
; b# ` ]; a! V7 D/ }3 W, S Cend
4 W2 @4 c3 j. j& p9 ?; a2 `
/ u; p6 t% p/ T( M( P$ lto do-trust
3 `# R& W/ ]/ rset trust-ok False% ~9 d- l+ s, b' y4 k5 G g
0 T, @2 X$ Q' r2 N3 {& `
9 Y( X; _( ]: L \1 ilet max-trade-times 0
" r2 @) [' A u2 E" R5 [, qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 R1 X2 F/ @/ M$ Y' a- Z2 Slet max-trade-money 0; C W- w3 {6 r' `8 A, n
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 `& H. E8 U1 u' O
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), }7 L2 w7 I9 \/ W
: `' _5 U; g- k$ {: ?* f
) d4 k3 a. D! `& x
get-global-proportion* @5 d/ r7 R# g. {4 ?
let trust-value
7 L0 G. h) ~7 W3 A/ e2 w7 Glocal-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 r9 `: h- [& u" e2 O a1 L/ h; A* V
if(trust-value > trade-trust-value)
) ~5 K8 y$ s. o( {# W. N* m[set trust-ok true]
, q- d. u& A& X% L k/ Eend1 d* V5 c5 g1 R4 \2 w @* W
! ?. y! y: Q6 _7 M% k5 n8 Mto get-global-proportion
8 M; i' [9 X" s5 }9 B$ uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* g, _# N" n" y9 I/ M. t) n9 _[set global-proportion 0]$ V1 r; P' q) Z: h$ P s" Q" C# D
[let i 0
2 z' l1 \) D1 W/ Y X8 ilet sum-money 09 d; ^* c8 H0 v) _- u( L( \; g9 C
while[ i < people]5 W. u; C: k+ C1 P' z
[
8 t: _" o- R! v9 Cif( length (item i1 Q" y, j, W! ^4 ~6 v
[trade-record-all] of customer) > 3 )
5 x& ~) A5 r- }0 }) n( H/ ^[6 H4 Y8 I' ~4 q3 m$ y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ U( `& u1 W. c% C" m" Y6 h2 x3 X c/ |& A
]! B' R3 Y% G9 P- t% K) q$ S
]8 A' {+ e+ W% X3 g# P
let j 0& H! Y- N k: @1 M7 w- Q! r
let note 0
' `* l3 c3 [1 k+ G% ?4 Dwhile[ j < people]
" f& r9 }2 l0 i/ B# a5 ^[
. [6 e6 I3 t' d. Dif( length (item i4 t$ B h' k) C0 E- k5 [9 i
[trade-record-all] of customer) > 3 )
$ F' ?7 d7 y, w* F[
/ u, t I3 P8 D4 R% p4 ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). }" K8 r* ~) d' m" P6 u6 T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 r- a/ n* ~( |3 f" ?- w! ^[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: k8 I L+ H3 L. ~ Y+ \; A4 Z
]
2 ^. [5 h. S% ` c]( w9 A+ N$ Y6 K8 [4 u1 C* T! |
set global-proportion note
% u: B* r% A, `' {) t]" C# r, u# J# d( T0 z7 A
end6 ?' X7 ]5 C0 ?# l8 j* w; z
- j, _/ z1 V' T- }+ n! P2 G( }to do-trade
; x& u; z$ F+ \0 ^& i& l' I0 h& V;;这个过程实际上是给双方作出评价的过程
, L- C0 m2 k1 `6 D- V. z. z2 bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 C" [8 O( P% R1 @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 C% F0 m/ w/ K) A
set trade-record-current lput(timer) trade-record-current$ u7 h$ z4 q1 [7 L) I
;;评价时间& i; @% u6 U% B" y
ask myself [# S, C$ @- v5 Y4 @/ ~( ]
update-local-reputation
" W6 h& d4 B* Eset trade-record-current lput([local-reputation] of myself) trade-record-current
& B3 I% h, p6 C' h% V2 T]
+ a8 k" n* @4 N9 ^set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 x" u1 v. Y A, l9 ~- L
;;将此次交易的记录加入到trade-record-one中0 N* ^: g* y/ u4 c; f
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), J0 D. }7 @" P) r( i; u
let note (item 2 trade-record-current )
; g9 A# k* V6 f7 w5 S9 yset trade-record-current
3 R8 y! n- ?. A(replace-item 2 trade-record-current (item 3 trade-record-current))
' Y/ _9 s7 A5 y, J$ T! v+ _set trade-record-current
* F) P1 E b4 W8 D7 h(replace-item 3 trade-record-current note)
r4 T! ~# i2 x1 W6 \
3 w1 V3 T$ \2 k& i+ o' N: u/ O5 Q: S1 i. V6 B
ask customer [- j. c$ I' n. M2 T9 I
update-local-reputation) d; r% C6 X! ~, g
set trade-record-current; @' Y: u' }/ S9 ~9 f" T
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& x0 [, z9 z$ R; _; |( q]
) r) }1 H, b/ R
6 p0 h) u8 l" J: k0 H6 a6 H7 M
1 T0 @" l! V4 w' L4 vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, k; F* W! x/ Y b6 Y
" Y- }8 l& y2 A, r# J; _8 W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ x( G/ w1 C0 m( m, ?% \;;将此次交易的记录加入到customer的trade-record-all中
% f7 q! x# }/ L! e1 ?end( M# ~+ a% |0 J
: o: L- t1 `# Q c
to update-local-reputation
: @: I# _2 w; x8 r- o( F( ^set [trade-record-one-len] of myself length [trade-record-one] of myself8 F. M; B" @; z M6 j
$ n0 K3 j* e2 f1 j
2 D1 J) |5 s5 r6 G# T* r |, k;;if [trade-record-one-len] of myself > 3 9 @+ p2 L' `, p( _7 q# F' j
update-neighbor-total2 B* Q; j. f' ~! _% ~
;;更新邻居节点的数目,在此进行3 N' _( X- N$ H( g+ X
let i 37 H4 j8 F( _5 P4 n% {) m% x5 R6 ~* b
let sum-time 0# I: p0 S* E. M- z3 T6 `
while[i < [trade-record-one-len] of myself]
4 {8 c+ \! d$ }[
* h4 t: T- L: D+ ~, P9 k4 aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 ^4 ]6 o4 M* D8 C+ O& yset i* d& n( V2 |% `8 c1 q" A& R
( i + 1)
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[, \0 p# N' q& D. Z- S( Z- n- Rlet j 35 Q6 H- I' Z( Q, E/ d4 V
let sum-money 04 g* ]& L% R. S
while[j < [trade-record-one-len] of myself]
% _- r- h, I8 x, A* c7 s[
+ f, |2 u& w5 {6 m9 Eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
3 ]7 v1 Z# m; G, O' o' G! \1 fset j
' @1 ^1 }! N: S' e6 ^( j + 1)
4 x( T6 ?2 Y( _]
6 Y2 ?" Q& G8 H! w; R4 Z9 elet k 35 b7 ^2 _/ q: d6 l F$ R
let power 0
/ d: S" R7 o1 ~4 ]4 g: }let local 0
& N& f1 H2 O3 i- K6 |- awhile [k <[trade-record-one-len] of myself]
; K% I& ~% H3 M4 O3 W, B8 j2 u[
9 x1 C5 S; D& T9 ~' Q0 M/ Gset 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) ; T5 s- d0 p5 _# L5 I8 S+ W
set k (k + 1)% M& {) K! {* y" j# y
]0 h5 k- E& t7 I6 v! |
set [local-reputation] of myself (local)+ Z+ i9 A3 F( ^5 r/ T7 V7 n
end
" t( Z6 q8 } \7 p# A
/ R! e' U3 G2 ~/ Ato update-neighbor-total7 w+ R! g& A$ z
/ M; {: {1 D: t4 nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end- v. H! q) n; r# U/ r/ m
" L( x8 r' }) k6 D" |
to update-credibility-ijl ) x: T3 D2 y# Q8 ]+ d
: J( A! V4 O1 C+ u- b/ G0 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。! r, t+ f$ L# S9 y
let l 0
; \4 d( Y1 G! i! U0 |( N# Uwhile[ l < people ]7 V% i+ [; j# X! ^. d! g# O; r1 ^
;;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/ D' A; I4 a) R( X# {) m0 q) y
[
& P9 k) M% G& B# e8 Hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ e' X2 Z" ^. s
if (trade-record-one-j-l-len > 3)
2 ]9 _ k; L9 S: w$ m8 x7 v[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
% E+ n3 O! u& y/ Elet i 34 y* I9 l6 J8 R& m/ Q# U$ Y7 U4 \, I
let sum-time 0
# \! a( ~6 B9 O: Z, O+ C5 xwhile[i < trade-record-one-len]
; @0 l* w, `$ [; p0 k- i[
+ g/ E# O( Z# ?) G! q- iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) b" M3 B; ~$ Z2 ]3 t- _7 {5 W
set i( L( P% }7 b% ^7 |4 ?, ^1 E
( i + 1)
- s; S3 F& W( ?# V' N0 d3 D]
" H: P. a/ }6 R0 T# k& ~) Llet credibility-i-j-l 0
$ H/ D% ?- O- G! b;;i评价(j对jl的评价)
* P7 c: Z+ v. G9 Q% s' K olet j 3% j8 {( ~+ X$ E2 `9 [7 T( f
let k 4
) N, B8 j D# V5 Cwhile[j < trade-record-one-len]; _' ?6 L% W! t$ y) S1 W) ?' [3 U( I/ ?
[
7 v) H- O2 |' D. V4 t( ]$ f- A2 Mwhile [((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 M! t' R( d- 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)$ g. Y- n$ u/ n& M" H' F/ o' V
set j$ u% v2 K7 X- Y: E7 o9 a W7 q
( j + 1)) k+ V* Y( J7 R0 D0 s) u
]! m. R8 M4 U+ r( u
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 ))1 S2 ?5 n1 M- h. ]3 f/ q
. I5 {, t; D6 {0 n, b; \% l$ d6 e) l$ d/ q) a+ B3 O' K0 e) P
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 r9 ^; y* z7 i+ m# l
;;及时更新i对l的评价质量的评价% F* d' n7 H+ `' N: m* ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: a$ `2 d1 x- l: {3 S H, @set l (l + 1)
1 k* a8 [7 M8 E' U8 j]
( `1 }9 f' }/ _7 t" v2 l7 }7 c6 K' Rend' B C8 @4 e0 e6 E
6 D; _! P6 G6 Y6 ~7 X- ?, xto update-credibility-list
5 [- u: ~. r- E' glet i 0
2 r( i- X& n& i1 bwhile[i < people]+ w' n w2 e& b3 f2 D8 u# j
[
% m+ ~9 W; ]: o( s( L f9 _# S, ]let j 0
% p" u9 w) y _( J2 c+ Z; ~2 [let note 0; |3 K$ x: c! z/ [4 f
let k 0
0 S- C- F* t, C;;计作出过评价的邻居节点的数目
, p6 I q" ~+ y( M( A. L' K" _6 Wwhile[j < people]
$ ?6 i* N6 x/ \1 u[
- W, y e) y; F4 e. I cif (item j( [credibility] of turtle (i + 1)) != -1)2 \& S2 q' P6 z0 \5 ^) G9 e/ h( o
;;判断是否给本turtle的评价质量做出过评价的节点
7 s8 i6 j2 f! |' |6 ?6 o[set note (note + item j ([credibility]of turtle (i + 1)))
+ t3 |2 N: x1 E& f! O B2 X;;*(exp (-(people - 2)))/(people - 2))]& a( e* r& m6 J, }
set k (k + 1)
& Q5 I3 P, [4 R2 h- N1 o* i }]
* E- k5 x, S O$ ]( ]set j (j + 1)
, t6 ?) _! @# p5 Q1 U. T]
6 X; C3 W+ F' }# D3 @set note (note *(exp (- (1 / k)))/ k)
e5 `# W. f, \/ _0 `8 Mset credibility-list (replace-item i credibility-list note)
1 K( f( g& g- b+ w3 B/ ?set i (i + 1)5 E0 v7 j0 }$ Y7 `
]
- E6 I4 ^2 }! D* m3 Lend. n; k( K8 L. n% I6 w+ r4 t
! B' s2 J0 a; ]% k1 R/ D( L
to update-global-reputation-list
. S$ V9 c5 ~* o# A8 z" w+ L' g' K3 slet j 0
& l/ _: k, u; `1 A. fwhile[j < people]& F9 X* q* f$ ~: G$ q c
[9 W3 x3 r) b8 z% E9 q% b
let new 0+ u1 C" ]; _( G3 N7 [+ _+ U
;;暂存新的一个全局声誉
8 C- J/ _, O" g2 r5 j {let i 0
5 b( r% d. G9 f* l' B( m3 f8 g% \9 `let sum-money 0
2 K. Q ]2 z( x6 M! Elet credibility-money 08 V) d4 o& j# l" r9 @/ M" B% |
while [i < people]
. \, r v5 b3 K5 |' }6 |4 N[) q. D& }) J2 F, Q* E2 d% }
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- ?1 T3 k6 I( X; F: `
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) n/ q) n# S6 A3 s% K
set i (i + 1) |+ C6 M# [- a2 W; f8 B
]$ B( M/ o R/ B' W
let k 0# V% |+ A8 B: j: T4 X t
let new1 08 v* Y. G# \8 k2 [# ?
while [k < people]
& H$ f4 }' y/ E M: u; ~[
t* c% U, X& A8 v8 Pset 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)
) x3 M- V- G0 \$ m D! F- b4 `set k (k + 1)) c6 Q/ k) g! y
]
0 E, n$ e- }& N* `7 H' pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& [+ R5 d6 z# o% Z1 e: S% Y* Z3 Nset global-reputation-list (replace-item j global-reputation-list new)
: u/ Q+ X4 _( vset j (j + 1)7 C6 r4 @9 C/ |; U0 p! q
]
5 o) L" Y6 n6 U1 \. D* Vend
) u5 ^0 Y" y( k0 o2 R6 Y0 Y7 d
; L$ b; J$ }" o: x; S8 Z" S) T* U! }+ q# C5 p* N6 R2 N
3 f' \8 L/ G1 v) c# r) a1 |
to get-color
% X {& `/ w5 R8 y5 k4 d
" J0 s9 l! a: Y1 s8 P" cset color blue
4 S7 D/ L- Y- d8 F" D; ~end. w0 K8 I1 M h7 a6 Z* R! [ \) q
0 g- y Z, B6 j. [$ ]2 `to poll-class
$ s1 @+ y& n7 A- J; }end! S. \$ m! U. V, g
+ t# L, q# D# j- s
to setup-plot1' E- f' I- [4 K, H
0 R v3 @5 _9 _) D# u
set-current-plot "Trends-of-Local-reputation"& @# |4 O; z* L. o
/ q4 a/ U# \8 s0 F
set-plot-x-range 0 xmax; t' s: e& {- M, @' ^
( K6 `: w, S- e& e- O- b5 m Tset-plot-y-range 0.0 ymax
# M; P* i; o" e; Tend
9 G( M& W: K$ C! Y1 x. o d/ K4 Z/ ^4 Y( v) ]
to setup-plot2
. ? _4 p3 f" q7 S: D
" o+ Q7 ~* Z* X: jset-current-plot "Trends-of-global-reputation"- g4 l1 B( M/ W4 X: z
& L/ k+ h: l* @; v! a$ e* H! Q4 P
set-plot-x-range 0 xmax
4 w* y( a2 m% ^2 P7 d
8 m. w0 [# ^' w$ Fset-plot-y-range 0.0 ymax7 J- Q3 r" y3 N( K4 b0 i* n1 P
end6 {2 K! F& K4 u# M$ |0 a6 i1 m
+ C1 s$ f o4 T5 C0 |. \$ ^to setup-plot3
, p7 F, m c% N: K W+ i7 u+ O( Z# V3 H" S: S6 g1 `+ I& }
set-current-plot "Trends-of-credibility"
- y, d$ j* t' s, p7 `& [. h* x! M0 N# x
set-plot-x-range 0 xmax
" c& ?$ C9 g/ ^- N
2 j& a, y4 c( w/ d9 H# O+ ?$ Gset-plot-y-range 0.0 ymax0 k2 b/ g& V# r) O$ j
end' P7 e3 p6 x" x/ G8 Q+ u
* k$ l# A+ l% v: L, m" x
to do-plots
0 n' Q3 K+ q. b) ^0 Mset-current-plot "Trends-of-Local-reputation"
; O8 l F6 k& z( S: |set-current-plot-pen "Honest service"' i8 X) ~' g5 Y) B t* W
end
" K' u4 K Z: z4 m0 r" ~. \
' b: z9 U* A2 v[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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