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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0 A1 H5 v: O* B
globals[# s! p. _! }# n+ H- n5 m& j+ f( ?9 g
xmax8 z# P4 B' V0 r* G m0 y
ymax6 H1 A" A. H( Y [ }& [
global-reputation-list9 z2 j6 j4 i$ P' g) V% E" R
5 f9 P S! T- X& _! U1 T;;每一个turtle的全局声誉都存在此LIST中
+ `! t% {, }9 C! l( Ncredibility-list5 B. _0 R# A: K: s/ Y6 B( h/ a
;;每一个turtle的评价可信度$ w0 u2 S( i. K; Z F& Q
honest-service& B& h0 L# Q/ G3 L8 }+ y6 G
unhonest-service& ?1 h: t9 [: r
oscillation
2 s0 l! c2 {# _( |, Y2 p* s9 Z8 S/ rrand-dynamic7 Y0 K f/ ?% \( v9 {/ N
]
6 \8 `; ]% W5 F7 A; g# X6 _# x4 M4 ]( o" W6 G8 ]
turtles-own[% ]+ \+ ]: q# J& i
trade-record-all
( [1 g- S/ d- Q9 m, m) R;;a list of lists,由trade-record-one组成
: u- J! l' T, b7 P7 M" z% Ltrade-record-one/ B. |7 Y; B, {8 Q; Z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 K/ t) o) h/ Y J# A+ L
- Z% H5 c1 y$ ?: a;;[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]]
8 W' E% D5 ?$ i, p6 l2 |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]
0 y e ~( G- R) l* X! b+ 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list4 t0 |7 r: O1 c# p- ]( ?: _
neighbor-total
+ Y. \. Z6 k$ T/ z+ e; Y;;记录该turtle的邻居节点的数目9 s4 X$ ?5 u: X3 T6 V0 T
trade-time
2 \4 ^, B* V5 d" E& i9 [;;当前发生交易的turtle的交易时间2 l6 Q: R$ F5 i8 Z0 V! {
appraise-give* A- f% q" ?) P/ A( O1 i
;;当前发生交易时给出的评价 f {$ U0 j6 t! _, b
appraise-receive$ T# Q) g6 b+ a; E% }, M! j* c. k
;;当前发生交易时收到的评价& M7 w0 T# G. |5 Z/ ?, u7 |, T
appraise-time+ @/ D$ U M4 w _
;;当前发生交易时的评价时间
# X7 Q% Z6 k9 ^& u3 [local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 t1 F9 F) p1 C, t: m0 u. r
trade-times-total
$ h( u* q6 l1 {1 }+ T2 o" W0 ]" e* G- ]3 M;;与当前turtle的交易总次数
# }9 R3 X, e3 K3 M! V" o Etrade-money-total
0 t2 E1 B# D" }: L$ T;;与当前turtle的交易总金额) F, i$ U' J! ~& E6 N, Z, l7 j; O
local-reputation5 U4 M, i1 Q# ?' T
global-reputation! T8 R- V" p3 k8 J
credibility: B' ?7 R: U% O- y. M; Z
;;评价可信度,每次交易后都需要更新3 ~( W% R) G5 f+ e. i/ n, X
credibility-all
. G+ {+ x. u1 e; L;;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$ ~9 o4 {' c% Q( N, Q& p* E
7 k Y& h2 ^% C% n;;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
8 H" f2 y0 }1 _( b8 Gcredibility-one+ ] p! K w( n
;;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
8 S: T) d t; e% S$ d' O. k1 U4 bglobal-proportion% d( u- \% V0 Q' u( Z4 g
customer
8 d( }" X4 g0 {9 K& Icustomer-no3 n' g- z0 p* ]4 F* Y# a9 a( L* ^
trust-ok
4 h& Z9 ~( |. M3 I; v1 etrade-record-one-len;;trade-record-one的长度
1 U1 R! f$ }" N* e]* ?4 _4 E, Q3 l+ B1 N3 v
! N/ C1 |7 ~( y& |1 j* j/ r9 Z
;;setup procedure4 J* k& ?7 w( ?- W5 |; M; F( G
" Q0 a+ v ]- v0 {6 [$ Oto setup6 N1 f1 u1 x5 i9 O
* a _7 d3 w, o: Y3 `ca% j% ^6 H% {" V- E
) ^. r$ }3 \5 d* [4 c# `! Z/ I+ X
initialize-settings
; ^+ d4 ^1 i1 v+ [9 s7 l5 G$ y/ a2 D
crt people [setup-turtles]6 i. A: ]# y2 u$ ^
: G! x8 K7 t- v( E
reset-timer
# D" N1 E3 D7 D5 O! C' C n0 z
: p: a- e! L( s8 Y6 W' R& v5 Qpoll-class
, n# y% m0 s' T* \
/ g v/ [1 G& m/ \6 K" g, ?5 gsetup-plots
" x5 x5 F' P4 {$ ]4 n
g1 M' T( x2 ?" t8 o3 }do-plots( W2 S0 P, Z# Q' I# J1 ]
end
% Z% [2 ]3 @9 y2 l/ _4 t P' {. C2 s" |; ^0 W. `6 l5 B; i9 S
to initialize-settings: y' o6 d& I' ^4 w- b6 o' y
1 e) b: D2 Y3 e; h- H' A
set global-reputation-list []
) K+ G; u% o2 `
/ w2 _1 ^) Y/ T7 y+ W Rset credibility-list n-values people [0.5]* W$ c, [8 O# ?8 m
- Y8 ]9 q, U# L0 w, J& o
set honest-service 08 |; }8 i$ Y2 S3 y" x7 [4 M8 N5 y7 d
( a% ~9 s; c% B7 W" f1 U1 Sset unhonest-service 0
9 j$ J1 \4 R) u; i1 u9 |5 Y0 J2 j$ N! v( \! z o& V
set oscillation 0
. ^* Y8 ]8 }* h. R8 w: H& R! _! ~: W3 e- O& E) Q, d, P4 p8 Z
set rand-dynamic 03 Z/ N3 l3 l5 U$ x& Z
end
5 \: j1 F' P Y- A1 d8 \
, t p9 Y) |* U- ?to setup-turtles + D3 T1 F d" ]( O0 C: J
set shape "person"
9 r/ c3 L7 o. {) G: psetxy random-xcor random-ycor0 x$ D0 r% e8 Z# E( F4 R
set trade-record-one []
1 C2 {1 E6 E9 Y0 C! o5 E+ \# }5 ^: {. B4 [ a2 Y. O% T) c0 F8 W
set trade-record-all n-values people [(list (? + 1) 0 0)] 1 u4 ^5 Q: m0 f. w3 @6 W; @0 a
/ g# h8 G: n* f( Y' E( E& Qset trade-record-current []
% y) r6 n, S5 q: Vset credibility-receive []0 G, L! ~# Z4 _. [0 T y: V6 M( M3 N
set local-reputation 0.5
4 H2 \/ e7 u% W3 h1 ?7 Kset neighbor-total 0
6 M# T) F: [$ {- D: A( r# Rset trade-times-total 0" B9 h4 N( d8 R7 L
set trade-money-total 0# T" u8 `$ W$ d
set customer nobody
# d6 Z/ c" \1 e$ R$ U0 [" Q4 yset credibility-all n-values people [creat-credibility]
( y$ i6 H% o# ~; V: {5 }set credibility n-values people [-1]( w. G, s; H: u" L1 m
get-color
. Y9 ]4 {; x# l
" S V' [& z9 j/ M& @5 F* }end
, h3 b/ f; G; v
' R. b& t/ J; G& e! E0 V8 jto-report creat-credibility
2 K& x7 {$ b( L, i- S1 ~7 L; {report n-values people [0.5]
# w$ x7 C/ P( V& ~4 Y$ Fend
9 M2 J) C, ?: G2 m% _ u! b) W U! H4 h" z
to setup-plots
6 C2 K7 J/ ~- |% D" @& K
' i: }' q0 C. m5 L% A/ Oset xmax 30
# _# {% i$ ?1 [7 p# {2 a* }. e3 f- f! l$ A5 B6 \1 I% R
set ymax 1.02 f- S* S/ z+ C! ^! }9 A. r
: l2 a% X7 Q$ R3 v$ X$ R$ X4 a oclear-all-plots
8 R. u$ F, v" D$ g$ F9 W' L% O% B; L- {- Q- G
setup-plot1$ ?' _: b6 i% R0 F/ o5 e* i
7 M/ i, A3 U6 g6 }4 @) Zsetup-plot2
7 [. O# [6 Y' m: P3 R+ n/ K
1 d2 p- o1 b% f2 y( z4 B' Bsetup-plot3
2 w* N3 Z' }* w1 M8 K& _9 w; e; Gend
2 M$ v. _) h3 D3 E; [3 Z, N6 N( L0 c; b
;;run time procedures4 |9 x% P& z: z& H
9 \1 \+ |; _, ?6 zto go3 F& R/ w& t/ F+ D+ M( K
. |& V; B% y; }$ n; G
ask turtles [do-business]# N1 E. R+ G) ~5 e1 m' `0 P
end; p3 v1 x/ l& {; G+ ?- f% J% V
& k& R5 v$ D/ @- W
to do-business
1 ~# C1 ?; M7 {7 x# J9 a" D. G4 x- h* s; s
) C! i! c3 t/ v: \4 ~' n
rt random 360
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fd 1
1 M$ ~1 K8 k( V, N2 @, ^" B6 B, m; X3 ]' l ^4 H6 x* q9 J) w1 M* {( z
ifelse(other turtles-here != nobody)[ b3 I2 J; J6 O' S% e: d4 n# w0 q
. x6 J2 a9 _" L, Q# ^. l# aset customer one-of other turtles-here- j7 o0 i" x! F4 z
: o+ A: ]2 O# t! O1 f;; set [customer] of customer myself
0 x7 e5 z5 n' F9 G5 N9 \; @" C6 T& @) W" W/ ?% R
set [trade-record-one] of self item (([who] of customer) - 1)# W0 y; l! P" I+ H5 ?! F
[trade-record-all]of self
% e( s. _2 m t, _;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* V1 Z- @/ ]1 o' z: \9 d6 a5 s/ h9 j2 M/ @7 k8 |& D# N" ?6 r. T) g
set [trade-record-one] of customer item (([who] of self) - 1) g5 Q ~0 p. W6 o$ E0 M+ b
[trade-record-all]of customer
% q1 Z0 ?( q+ Z% D$ r6 o( i% Q% ?' y- c5 y7 H6 }' N
set [trade-record-one-len] of self length [trade-record-one] of self
6 j \1 ^: d" i* D! y% a
* ~! Y) z, d; H X- B6 Rset trade-record-current( list (timer) (random money-upper-limit))3 n8 H' _% B2 [ n2 j! N7 K+ o
4 |9 x# p. _7 \$ O3 Gask self [do-trust]* G5 V4 s+ j; i% Z" @9 A8 c( _: ?
;;先求i对j的信任度- P. V5 h! |9 H; C' m1 T, |
b8 I# U: j7 r( t8 p# N" d9 O, Uif ([trust-ok] of self)& z4 ]. B9 t% a
;;根据i对j的信任度来决定是否与j进行交易[4 Y& `8 V2 A# T8 \1 _+ s6 S$ H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& f5 u; C5 E. a
! I& Y: K: c" b n[* S6 T- b8 Z. K. X$ F" |5 c. n
; f B2 s* I% j, U: P
do-trade
, g1 H* {6 Q% U. u0 [1 H, g5 } B8 U
' E( r/ u- X+ |8 K* B1 Wupdate-credibility-ijl! H; [/ p7 r' x! C/ v8 c
' `- V+ v3 w+ ~ ^6 C+ hupdate-credibility-list
* |- f: x3 |6 W; Z8 P: w
6 r- u# m3 l* X' c, |' _! ]. w0 ?# t! `7 h* ?
update-global-reputation-list- D" A# s9 M3 i T- A3 k2 A# U
A7 B; u* v `. I5 R% Z: |* Xpoll-class
# ~3 l. c n+ v! r9 |, K2 d$ P7 L9 B4 d
get-color4 F" g/ d7 l8 B7 ^! G4 u
! v% Q \5 x0 g) A( U6 I]]
, y0 W5 L) O) R7 j) V, a
, S, O# l, `% P; h6 a;;如果所得的信任度满足条件,则进行交易
2 ?( C) ]5 t; ~7 P' H
1 t! r7 R3 H/ D. K2 z[$ V4 t( l. b& ~
) C( c% j+ \7 N9 T+ D' ~2 y- Rrt random 360
8 o' s4 z! A( N* l* x8 J
, e# v W; ~* pfd 1. i& w# a4 Q6 L7 A4 S' O2 R% ^9 b7 o
0 H' v/ |7 ~( Z0 B! a
]
; S, r% \0 ~* d1 D! K' _! d! g* A3 z- z; @
end
" I) L- ?8 j. \+ d
0 o% W6 M ~7 eto do-trust # c: B' }# H% p+ e3 ?, R7 x$ ?
set trust-ok False3 j9 c4 z( p1 P6 I0 p, |8 |
, W) @0 Z) p; r I( M2 Z' E
0 |4 K5 x: R5 f% ]% J9 Hlet max-trade-times 03 k, d0 n& G/ h7 x7 u; n0 e( W/ C: |
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' L4 s+ d8 z9 A
let max-trade-money 0$ i# g. K% N, ~* l. q' Y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 y% t3 l* l) p8 nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& w; T( s$ |6 o6 d$ {
0 R- R, s6 X2 [% j8 v# s
. h: f: Y2 b# a+ X8 Pget-global-proportion' }9 |" P1 \. W% i% [* q8 l7 O
let trust-value4 n$ S: l0 j$ @
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)
3 z: a' a4 ?4 K8 a, A! l8 uif(trust-value > trade-trust-value)
4 u4 p3 z3 A* T6 X/ _7 L4 m5 @[set trust-ok true]; S# p. G7 s( S8 a+ P
end
$ h; s4 m2 Q* L+ n5 I& h6 f0 D; j4 @' R5 W. ~6 X' h$ c( C0 z. ^
to get-global-proportion
$ e. M/ ^! d8 Y3 _0 Z& cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! q5 s; x2 W% M5 x0 v$ _
[set global-proportion 0]
T" W. h$ |0 v. E+ R[let i 0
$ I1 O Q, q1 clet sum-money 0
4 B- }; k' U- g. y* j3 Z9 Cwhile[ i < people]% t! N' ]; T. U) W
[9 @$ W9 h9 g1 A! N/ C
if( length (item i# X0 C6 d, `; ` Q& m
[trade-record-all] of customer) > 3 )9 W- Y) s" u% A- F( l
[+ b1 Q; {7 H {
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ Q0 l e( D! Y) R/ R& i i% V
]
/ o. V/ y9 Y- {. R6 x9 Z]
& L/ v) |8 L rlet j 0
. C$ H$ ?; x8 V* q vlet note 0
4 f# C/ P. k6 i) M2 D* Rwhile[ j < people]
: k1 n: {* _. ^/ N7 ~9 K% S4 |- L" C[
8 m2 F7 l! O4 u O" h7 I* G! @0 d& sif( length (item i. H+ _* A. u" c3 T
[trade-record-all] of customer) > 3 )7 u: v; ~$ m8 E3 M
[$ v! t6 g& y; ]# L3 |
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 ^6 ]" m* |: B E& X" M( b
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& t2 A+ c- S( U5 Z( Q1 V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# o- e7 o; l4 R7 E( S n% e8 h6 W]
2 R6 a" i) E) r5 q]
) D6 h2 N2 _& ]set global-proportion note+ u8 S/ p& F+ W, t: v4 Q
]
5 o2 L8 C1 C1 n6 [9 ]end& d' a8 y! f' w/ p# V
# g. V E* ?; ~' B; u7 @8 mto do-trade
( |4 u u% p7 v9 v5 Z9 N;;这个过程实际上是给双方作出评价的过程9 g: O4 [, R4 r( {- _' w, r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 f2 g. |6 j$ z' O0 u Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# j$ T8 \9 i( k8 W" q+ g2 C
set trade-record-current lput(timer) trade-record-current3 R8 x2 I" {- b4 P: E
;;评价时间
& I+ t( A7 p) rask myself [- I. i6 y) S) n8 \# t
update-local-reputation$ {: X. q9 J" y: ]" g" t
set trade-record-current lput([local-reputation] of myself) trade-record-current
, B3 k2 Z% c& v/ H, @]
3 S- l& A8 n, L9 i- Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( D$ M! C! v% U8 U
;;将此次交易的记录加入到trade-record-one中" [% X/ {& } a' ?9 Q& N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" `+ [! [+ k. ?& M
let note (item 2 trade-record-current )! E( w/ ]* b4 a! O1 I+ g
set trade-record-current
; \* @; m3 e; N F2 X( Z/ L9 e, ^9 B) Z(replace-item 2 trade-record-current (item 3 trade-record-current))( V" H1 M" u' I Z) N* V
set trade-record-current Y: g1 J0 x+ @5 U) [
(replace-item 3 trade-record-current note). @$ N1 r2 t0 x4 k) u
/ W/ s5 p9 F2 j, S8 {$ X4 e! Y" F9 r5 K. P# b
ask customer [
$ d( w, L2 h" `: J, Y9 Zupdate-local-reputation
4 f; p% x v4 B+ xset trade-record-current
% p; F9 D% h5 w: f; I0 j" [& [& V. T# v(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; W. }+ @7 C+ a0 w7 @0 `2 f4 G% _]
; |# } f; t) z: C# W
7 V& L- i) J# |) U: ]+ q* g1 G- o. S. T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) `- a9 j% ^/ W3 d5 i
$ L3 r& H1 x9 y. x R$ V( b
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 O+ f' \* {4 J+ R" h/ |9 p/ ^;;将此次交易的记录加入到customer的trade-record-all中 ]* L, G/ o) S$ ]; I: z5 N( x
end
7 V2 }$ V7 a, b2 |3 V& e0 H
9 @9 Q* J: n: b) _ V) mto update-local-reputation
: C) Z% `, m# J" Y2 Y# ~set [trade-record-one-len] of myself length [trade-record-one] of myself* \) Q# H; `. h* P( Z6 G4 D# g
8 T. D- V0 s" X" J3 H: a9 d
4 x |. s3 }+ P& t;;if [trade-record-one-len] of myself > 3 & f$ I& J S+ e/ C! i4 k/ c
update-neighbor-total5 K# O" K9 x9 R* O
;;更新邻居节点的数目,在此进行
; d3 ]& A! C2 O- Nlet i 3
: b9 f( H; b7 Z7 L6 Elet sum-time 0: } j* f! u7 A4 h
while[i < [trade-record-one-len] of myself]
# }. |7 J5 K: t' k+ q0 C( P[& o+ }/ x/ X/ x5 _3 _ U
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 R7 b0 i$ ]/ X8 t, l, R! s
set i! w) y$ u% h3 X1 b# a! U
( i + 1) k$ `+ a; X& u
]
1 |: @! w: J0 o) k( [7 A8 s4 G# Qlet j 3
( N+ W& m) J: X+ O2 Plet sum-money 05 P$ u. Z: w$ ?, E% t+ t# R4 _
while[j < [trade-record-one-len] of myself]8 X1 c! }9 V' ]! b9 r2 E* j+ X; `
[
) Z( u. s' H- h9 Z9 u+ t" w7 gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
9 J/ R( F6 g3 u. Q' rset j" v8 l# y% L% K+ x2 c
( j + 1)
R, R h: w9 \1 H/ A; N$ {$ j1 |3 w3 X]
( C# ~# a! ^) wlet k 37 W6 O4 l# s2 S L+ u5 g
let power 0
& [2 b* g/ v- a% d! A( tlet local 0
; E" |. b7 K7 l7 ?1 iwhile [k <[trade-record-one-len] of myself]
2 W8 t( h/ e$ W7 c# z( r[
7 d1 [2 F) H6 P+ ]/ ^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)
( g: ]. T& j; f* N$ c5 }& [set k (k + 1)
) g( ~0 m& Z4 n- M" t& g6 I& h2 O] M; L5 _0 Q5 ]( O$ _
set [local-reputation] of myself (local)
( t% l- o1 v5 K, v% s; C6 W. oend/ Y- S! C! h& Q! Q8 r
9 S8 a! j% V. |6 N0 Yto update-neighbor-total
* a* E. |9 G, G! u" J2 K
; j- \6 E" \' i4 S" ^# uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" u. h/ @; V) ^, x3 p* V$ p5 l" w( |2 H5 o
* A# D7 k2 R0 @& R4 z$ M
end
5 [& \1 z/ r6 }, L0 I9 ?/ ]% {
6 r8 Z. {$ y \7 _; pto update-credibility-ijl 3 M" |1 R' `2 |; U
5 F4 a/ s$ Y( a% m6 `5 U, s- \
;;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。
. c8 U+ }6 |) a: l$ P! Tlet l 0
: g# O3 K$ ?9 Dwhile[ l < people ]) N2 [2 [% j4 \# }! a
;;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6 T1 C7 Y. G- j! Q8 \
[
0 ?+ ^ x3 L: h# Alet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# o5 j" g3 h- m6 B- r5 Pif (trade-record-one-j-l-len > 3). J y: B5 ?) B6 I8 h% Q, b
[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
: L5 w: W" N; I: W) k4 J ?let i 3
( t6 a- p8 y0 O0 c$ U& R) q; rlet sum-time 0
0 S8 p: B0 K/ Kwhile[i < trade-record-one-len]
2 z3 o' b, B2 n7 A7 ~[
" g. g9 Z0 N2 ~( tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" D5 f* m# y/ P0 ~$ ?' N# o, E& j% A
set i0 u; t/ `1 b; Y' n' Q
( i + 1)9 I- O, I" R, |" X4 Z
]* O8 ]8 s; I9 n2 n8 c
let credibility-i-j-l 0( Z( w' x0 Q$ j5 K9 C6 y4 a. N* `" z
;;i评价(j对jl的评价)& b- e* f/ n U6 U0 G1 g3 p" X
let j 3& e$ O- ?, U, x8 l
let k 4* }+ \9 \- Z8 Q! @9 Y7 b8 r! W7 `
while[j < trade-record-one-len]* U" T5 B, P8 w8 B* u2 H/ a
[
& L3 b- ?' y6 a3 awhile [((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
2 a. i4 g$ ^3 Xset 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)3 m0 S, m* u. }+ ?
set j
B+ ]5 X, c) o+ `5 S( j + 1)
3 z% M2 W! X5 q1 A, \' X8 x" Q9 e]5 k4 W# m( _7 C
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 ))
$ X, j, E6 [ R
8 D+ q5 N/ w# N6 S; l" b, \) P) B# [2 q5 t; n& Z4 f7 C
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 [! h; d' i4 A* ~. d( }+ R;;及时更新i对l的评价质量的评价; y/ d/ T& l5 t+ y/ s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 G( [% w! W5 Eset l (l + 1)' R( Z, j- u. T/ m0 h) s
]
, @& g7 n; g0 cend
) O7 h1 C5 ~! o6 F& z" H R7 ^3 T5 Q' e2 r+ O# A4 A1 G( g
to update-credibility-list
' i0 }; b0 D; ~# {let i 0
/ q {6 Q+ _$ ]' n# Hwhile[i < people]
' V2 b. p) Z% e[! s) L% _3 O+ T$ H% \& W; `1 G
let j 0# f9 g2 g% _* T, P* y( _+ _+ c
let note 0
& @* x2 i; o+ M% }: o. Rlet k 0/ i' A, k6 [; h. k% W$ k
;;计作出过评价的邻居节点的数目7 B+ w% }% ~! i/ _0 e% U
while[j < people]3 E0 Q7 |" {* r, K9 v7 ]
[) c8 ^+ h9 y4 N% P$ h6 H
if (item j( [credibility] of turtle (i + 1)) != -1)8 ^( e w5 f# l' n& _5 a/ Q2 e
;;判断是否给本turtle的评价质量做出过评价的节点
* ?5 g5 l6 G6 s3 g6 |[set note (note + item j ([credibility]of turtle (i + 1)))
0 f" h9 t/ \8 J' [" [4 n) I& E;;*(exp (-(people - 2)))/(people - 2))]
3 r+ }0 P% d% ]( Hset k (k + 1)
d( A/ \- b( L8 o: G]; ]9 M0 V# b0 S- o3 D1 `
set j (j + 1)3 F2 b b. V$ R0 |6 r- A
]
8 E. l. L1 K( e( T1 \set note (note *(exp (- (1 / k)))/ k)
+ k9 ~5 y' c1 X D/ f: R2 Xset credibility-list (replace-item i credibility-list note)% ]2 C) D5 M' x8 z' l
set i (i + 1)9 X3 ?$ s' O5 o% @# _( @
]1 @, O4 A" p$ H/ e" {- T: C
end0 b5 Z/ f$ @. Q( H. _; d1 Q
) w; \$ t" |; v) h8 ^. L% \to update-global-reputation-list2 D* @, ]- ^7 T4 _1 r0 q
let j 03 S5 N& }- I) p5 o8 D: c# m) @
while[j < people]. Z" v0 E! K' |# P" S8 D. S; w
[
3 F7 N8 Z N% B, X, Blet new 0- M3 J6 ^) n2 M/ t k. ~
;;暂存新的一个全局声誉3 v# T" g4 x9 [: t/ n
let i 08 S. U2 Z0 x* f" M M0 P7 M3 _2 K4 M
let sum-money 0
# k; Q% n f6 _# G6 n% P8 a$ Clet credibility-money 0
: R% S- \' F% Z3 j- @9 jwhile [i < people]1 M0 t! ?" M9 w3 @6 |
[) C" j& |2 k3 a, H+ k1 C) W
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! c6 X& f2 B; o: K5 H2 p) }! T$ ]3 p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! P8 T' m% z \/ dset i (i + 1)9 \9 r& x0 L1 B7 w _
]0 B. G6 l8 w; {8 }* e
let k 0: z8 \: z% H4 X, S- C9 R: e
let new1 0
, _$ m3 ]1 _# Kwhile [k < people]
/ d* ^( ~' _! t7 v2 ][
6 x7 x7 E: S& l) m( Mset 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)
! n2 h6 `7 X6 s L! \: |set k (k + 1)
: I8 X, B7 B0 P& B3 G) } Y]4 a: W, [+ |" G" q$ \
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " H2 |) }0 T Y( P8 I8 S
set global-reputation-list (replace-item j global-reputation-list new)
( i% F8 F, _7 n0 t2 Pset j (j + 1)1 J* p) Z& i$ `: c/ E# C
]
% l, M0 B ~; t* ], [& `end
; W# [3 D9 ?, C3 ?1 Q$ @
- B& d9 M# {; i5 F5 {/ e9 R0 p# G) w+ B, b) g
. \+ p# ~# M: K8 S6 F5 y
to get-color& x* e. [4 |( ^* u
4 s# E4 p. g; B! \6 z+ b6 w, w
set color blue1 O. E- h) j8 B, y5 z
end- x1 L7 r$ M6 S' }
2 ?6 ^$ q& `* w, r& E3 g8 A# p
to poll-class& @& c0 J% Y5 J8 U0 I
end: l! ^' M9 N8 H1 K3 K
: g1 J4 X+ H, g+ k6 D- ]. u/ N! }
to setup-plot1% H* Z3 l) s0 u9 G6 W
* z) e3 q4 q1 S8 e& [3 T7 \set-current-plot "Trends-of-Local-reputation"7 r/ }3 V6 N, i. d, E, J
" }6 C- q5 W) Bset-plot-x-range 0 xmax
2 V, y( B. j; w \% ~
" [1 B. r* y, ^/ j! V) e* Qset-plot-y-range 0.0 ymax: b& G$ P$ f; P
end! W1 _! T9 [, }7 `! e$ X+ ~
" D" N. _; C5 s! j" [; Xto setup-plot2
. C% w# I" G+ t' Z: h
, ]) K) Y5 \9 @: Xset-current-plot "Trends-of-global-reputation"- l% D/ [( u3 e4 |# ?% r1 E, R
4 m( @4 \, Z" {set-plot-x-range 0 xmax1 \8 n# @! Q1 o* v9 D
( a) Y. [- [, u0 `set-plot-y-range 0.0 ymax
/ Y- x4 h$ M+ {$ I2 l( g+ Y1 eend
; [" q4 f% k6 F: z5 v* |9 z
' `$ \6 o; s' q1 Vto setup-plot3
9 v1 o5 |" ~$ s Y
?& I* q; V, {9 P# t% x) Cset-current-plot "Trends-of-credibility"
5 r! P* R# f- [/ u+ Q& M8 `2 o: }. G1 x9 Y, |# V, F8 l
set-plot-x-range 0 xmax3 g( @# r6 B/ u
4 d' W; T. p+ W, [+ lset-plot-y-range 0.0 ymax
. O. `$ y5 p; W" Xend$ P& d8 n( J4 M
1 Z8 ^ H. g- O; \* dto do-plots
/ b) e7 S6 @5 U2 kset-current-plot "Trends-of-Local-reputation"
, ?/ f6 j7 K) m; ?. oset-current-plot-pen "Honest service"3 f2 S3 J8 s! Z
end
" n* G: q3 m- S+ b! ]& {# e& J6 @
$ k3 U$ i u4 T[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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