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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$ c5 U' J3 T" I' Y
globals[0 u* P( N9 W: j/ ]
xmax% U/ H+ h8 o# h! Q( P5 C# T5 Q3 X
ymax
1 q4 F2 }1 B7 W3 jglobal-reputation-list
z0 ]% r' t$ ~0 |! l G% `* M% n9 L
. s- |+ `0 F2 z8 P;;每一个turtle的全局声誉都存在此LIST中
8 V; a; c8 {0 k9 dcredibility-list/ c/ Y- ?9 R5 w8 ~ G5 [; a
;;每一个turtle的评价可信度
2 r& X* R1 c* S5 D& ?5 _+ ]% Bhonest-service
+ F1 z4 X9 N) ~: n* {% V' Runhonest-service
. y: b n. w: Y6 v9 C& Noscillation4 L* h8 x& l! p+ P8 E* D+ H6 k
rand-dynamic, o0 C6 A* ` v8 @
]
( e2 P; @3 F4 `! B: Y/ R& G. v, M% W1 D( b1 P6 ~
turtles-own[
/ @" N/ G6 D. q' F' Ktrade-record-all' G+ ^# D: @; E# A
;;a list of lists,由trade-record-one组成
3 l4 O6 }6 n0 Gtrade-record-one7 S# f; \* z- p9 X. T* r% K/ B; }
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录3 l* q/ ~& ~) r; k1 U2 V
* N) q7 ?" [: W8 Y9 ^- n5 [( K
;;[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]]
2 U" P- R7 R J$ v. h& }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]
! u. c i9 B5 T6 X; \8 n1 z$ Tcredibility-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
. L) x- Z0 j2 Cneighbor-total
& p8 k. A3 E3 w* p* N$ k;;记录该turtle的邻居节点的数目
! V$ ^' y' S! [) R$ r9 z* _trade-time) v' {# s1 a* c. {/ S# _/ d2 k
;;当前发生交易的turtle的交易时间
' |# b# H0 F$ S! N( r9 i6 }appraise-give* s% D3 Z: R4 a, h
;;当前发生交易时给出的评价3 D" `& v8 e* f& W/ E4 T1 p
appraise-receive$ ~ L$ {, x Q5 Q; r* y! K3 h2 G
;;当前发生交易时收到的评价/ h+ @$ f& i/ \0 j8 `% R; n
appraise-time/ j8 _+ x$ K3 K* [- e a( S$ K; w
;;当前发生交易时的评价时间
1 t( T# j& |2 O8 ], U& S! G6 mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉$ S0 t3 p7 W* w) M0 X
trade-times-total
5 f9 g& f6 W& s, a' H2 E' h7 |;;与当前turtle的交易总次数8 T0 t% L7 c+ Q' y2 R
trade-money-total
5 l g6 b, `; f) N# l;;与当前turtle的交易总金额+ o3 v0 Q* A# t5 ~0 {7 k( U
local-reputation) E( S5 P H. a! ?" |; J4 Z
global-reputation$ U a* Z, k- A( d: W9 t
credibility
5 o+ W/ S* r/ r# x! k0 }, E;;评价可信度,每次交易后都需要更新( v0 t1 w; ~. ]& p( E
credibility-all
, ?# x& Q- v8 E/ O1 ~' |9 U8 y* \9 Z; u;;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
- a; f0 @1 r% d8 h5 `3 z+ H. Z1 M4 W+ ]+ j) O. L
;;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
- Q* L! B. m8 E8 N% C. k: F, Dcredibility-one* e Q+ c( p5 `+ C
;;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
* _4 g+ F& u1 C1 E* ~global-proportion
) Y: F, d' b& P7 m; k' w7 x1 T$ mcustomer$ I) A6 R Q- m, R$ F
customer-no9 X# q4 @" o: c+ P" W
trust-ok$ ]; U' ?+ w3 u0 w, P
trade-record-one-len;;trade-record-one的长度! C9 [, U5 b( g# J% f; c2 z
]2 a; c. Z6 Q6 P; t( A8 k; t
2 `2 f# [; q3 R; h7 U;;setup procedure
+ P, f5 b0 [+ [* \3 ~3 z' I9 `: h
3 t9 S7 |. W! R4 S! }5 o4 yto setup1 p* @% J1 O5 m3 j
+ R# o3 V+ S# j) b7 {
ca! ?- o. g t7 k
8 I% e1 W. \" e: b
initialize-settings/ `! o, y8 u0 ^
) c& w' g7 a* L: B$ R6 [9 [. U9 X" Hcrt people [setup-turtles]
5 }0 @) e; d# z& `# V6 s8 r8 K6 r1 m( b0 ?$ i
reset-timer
" _% G+ A+ q( O7 v1 i+ Y, e3 K0 a- W1 n& ]
poll-class7 ?1 ~9 {4 W# b: h \1 @
+ G% h% U# z3 u7 D- \& W. \
setup-plots
( m* f4 E6 A- l6 t
4 ~. D0 v( @1 I& D/ j! _do-plots
/ m' m* L/ c# o9 Send
2 v6 A& h$ k# j3 R* K [ T; S8 g3 f: U
to initialize-settings; c0 h' n8 d- z! k& i5 m
- D( d- g2 [- x. O4 ~" b
set global-reputation-list []
! T2 O/ b: g) m( D7 y0 p4 [& _' g6 r+ O( G0 {/ C( P; J
set credibility-list n-values people [0.5]
7 A) W+ ~0 K7 o' ?9 Z) p+ t
8 Z0 g) ?# d, n9 ?; D) L) \ t( Yset honest-service 0# S i9 N) R( w
) b8 n% v8 a" ^
set unhonest-service 0$ Y% t! B! h) r8 j
; S' z3 a" J, i( r1 w& \set oscillation 0$ ?3 \. r# @" n" G6 |7 F5 F
% i: e' J' U% ?
set rand-dynamic 0& \ K. O1 C$ R% M3 g
end
0 M1 L l2 }% v w
/ W3 A6 ?6 S( k& oto setup-turtles
- p. S4 P, U% ^. p3 |set shape "person"
- a$ n* {. `2 x, I: asetxy random-xcor random-ycor
2 U0 h \( l! T7 t) _set trade-record-one []) r3 l. g! U) p" c
5 s. E* E2 @# ]+ n
set trade-record-all n-values people [(list (? + 1) 0 0)]
8 T7 S; j7 ]0 Z6 K6 c2 `' `- }5 x: [/ ?- x: E9 M# {8 w
set trade-record-current []' [+ M& T. z7 [0 M
set credibility-receive []! O; K7 G- S* _9 }; N
set local-reputation 0.5
( |. m+ a# T8 [/ a6 Xset neighbor-total 0% d1 X0 s( I* e- Y
set trade-times-total 0
8 ?; `: V2 `! C4 q2 o# eset trade-money-total 0
+ k- u+ Z' t/ Q* P5 ~set customer nobody) G9 W* e" e" l' |, V& N9 D
set credibility-all n-values people [creat-credibility]
+ h, X' |$ S5 i8 [. b# b5 {" ]set credibility n-values people [-1]+ w9 |& l% D3 v- g; O0 w
get-color s$ Y) H1 K5 |- w2 B" f
/ j! o) T- W/ Y, ^
end
. H$ M! s) c* T- n( K) P% Z, L: L/ J6 E4 k1 Y
to-report creat-credibility
9 a$ O: Z7 a; O) S5 E6 \report n-values people [0.5]9 |9 P3 Y' ^5 c! Q% l5 T1 i; V
end, ?# J# c% W7 A+ X2 M* F8 p8 d" W
$ ` |/ V( {) y* Nto setup-plots J( @$ x9 B: U; d0 N' I
" `2 L1 H) t. [/ B, o0 V+ e" c7 Z) yset xmax 30
" t. v8 @7 ^: ~: a* m+ f' j) l0 e. m
set ymax 1.0
: i8 X8 E/ D3 c; d
* g" y+ e! b0 j' y9 S9 K4 K' h! rclear-all-plots
7 E( H& W/ F) o0 x; t* `1 g8 x2 ~5 I& ^9 q
setup-plot1) o9 |) Z. Z3 I7 P
3 T/ X& ]$ \8 f5 P
setup-plot2" ~! b7 H8 k6 o# Z
3 C; l7 ~0 M! H2 g
setup-plot38 p/ }" L3 K9 Z X3 r6 u7 e S Z+ T
end
4 F F2 O1 v! i# h. Q, m; P0 L3 l: W C( N3 c. R6 W; Z7 b! v7 }# e
;;run time procedures
, E1 ^! l6 e+ m, K5 v) v! k8 L3 b2 C3 R$ N2 J
to go
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ask turtles [do-business]
: |. D }, A* @! H# _% \end
" j" ?$ u* M# ?% e2 N/ |3 |, A
% T8 b! f0 e7 o) g) e( T( ~to do-business - z4 d) @; \( Z% B* g
1 d0 v9 m* ^" j/ V8 A; L
7 e0 K6 I; E$ Z2 _3 mrt random 3601 ~: @( V5 d( P# Z/ K
$ {) y' {$ p0 n, a# Q8 K
fd 1
* N/ \) G7 M& g7 f
1 r* {/ [$ I$ k4 ?! |! l% Pifelse(other turtles-here != nobody)[1 k9 u" S9 ?/ J" M, r" J: l$ c- |
" I& D* \. S' g7 [set customer one-of other turtles-here
% O, H0 ~3 B) K" T% v9 f5 M
7 E, P- w# M6 b3 K5 o5 x;; set [customer] of customer myself
, H* X1 |, C, U
2 ^& b0 d( D8 r2 Vset [trade-record-one] of self item (([who] of customer) - 1)
5 B- w, u+ ~& b& ^[trade-record-all]of self
. V4 f5 l- o/ H4 Y;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) h6 B/ s. U2 m
8 U4 P r, x: ?- }. H# x5 qset [trade-record-one] of customer item (([who] of self) - 1)
2 ]2 d, M# s) z- P6 M) Z2 v5 a8 ~[trade-record-all]of customer$ q+ b( H/ E- R0 G1 h
* X* o/ h6 U7 v: cset [trade-record-one-len] of self length [trade-record-one] of self8 v2 S- {& F E6 a+ f- V. }7 z
% x, R5 H' @8 Q( O
set trade-record-current( list (timer) (random money-upper-limit))$ }$ |( i. L) z$ Z6 C& j
# j0 v4 ~2 s. C0 k
ask self [do-trust]
p) c$ F. s* R( w# }5 R1 C;;先求i对j的信任度1 y1 F X2 G8 m% T% B3 W
1 H+ R$ P& y# N. {& V6 X+ e8 A; jif ([trust-ok] of self)
* _1 l- G, R- b% [" ^! D;;根据i对j的信任度来决定是否与j进行交易[
/ @( @1 S0 J' |. Y7 fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ l- F! |- V% t5 s
# e: H1 n9 A# u1 ][
1 Q4 q# r7 r+ U) S c* P: h# p/ e2 B/ Y8 s
do-trade) M2 c5 {% z2 D) m
- T$ I# T/ H6 [
update-credibility-ijl; W; c- s" }- b5 T) _
7 k& V, h: l& j7 [2 T
update-credibility-list
! u+ A( B; F) O" J+ k8 U6 P, M) M. s2 T$ e: ]- S% {7 t0 U) }3 W- A0 N& p
' n! ~5 l3 ~0 P; t2 Fupdate-global-reputation-list
0 J9 C* e" k; e7 P7 H* h' f6 Z) r/ t# I; ?
poll-class
& P+ u: f: S& d6 Y7 {" [2 w
8 v# M3 T+ M5 o5 _get-color5 L& a3 U3 l b+ T1 I
* b0 F! L# C2 \ z% D8 J. {
]]
2 N8 c* v5 l% n9 q9 L# V; J% u' k) b- T/ m# U; d' g8 _. @
;;如果所得的信任度满足条件,则进行交易, q/ c( P4 I3 M4 P8 p K
' o, R4 Z( p E0 l1 e3 v
[' C' K B6 u4 i' @# K- B* |
4 B+ V- w3 q2 g& V( r
rt random 360# E* T I' ~% J. y# y- @% O
, L) a& O0 S8 q$ b* K: Afd 1
% H+ q/ B7 Y, Y, c% Y- {
2 Y8 g" k3 Y( y- ?: \], G v" F$ K2 H4 q- c
) Y3 ] p, x' B* Gend
! V1 K/ F+ q* u4 v* G( S6 W7 I
. s0 f" D# x' S* mto do-trust
; ~/ M8 ^5 F# o9 u- R- _$ n3 Pset trust-ok False
, V! ?" A3 u3 p$ c3 W5 X
) g* X a `# I- i9 s+ w$ y! ^( c+ Z1 x$ n1 E
let max-trade-times 04 ~7 M- Q) @5 m) G$ _- i. ?# F
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: R( W' o0 z5 zlet max-trade-money 0* }, G4 L4 e6 B* v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) l: B3 R4 ^+ i8 u1 ~8 `let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 S. u; D9 ?$ q, d1 ~+ f
. @3 J% w' R4 G( w% p8 \% o
! w: C/ u7 M6 ~4 C+ Gget-global-proportion
; i$ {. q- k7 ?0 a6 N+ `2 F# ilet trust-value
1 N. p0 |. x2 R/ Z" ^/ H" E6 ^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)
+ k0 Y4 ?5 Q8 aif(trust-value > trade-trust-value)
/ Z; W) {$ G, U% s$ k# S) Z( m[set trust-ok true]! @! P2 c e! ~
end
4 b- L2 J7 a9 E! _; J& T3 Y+ ?# p# M5 t9 M9 a7 o7 k% O) M
to get-global-proportion6 C3 J% Y) {" i2 z& J
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! Y6 d6 X! q2 ?3 g, O/ X
[set global-proportion 0]
I3 N8 [( D! G[let i 0
, u: v" f# Y( q5 {, H4 O/ Llet sum-money 01 k7 T- ^% v, A' v# I5 j
while[ i < people]$ B) F1 { e+ M: R r
[
1 g8 g' D' \& Kif( length (item i
) c7 v r j/ N# z7 T$ e[trade-record-all] of customer) > 3 )
* i! Y e. C: ^5 ~( C7 a[! }# {# K& z, F1 l2 m- A! h
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) \( M' Z% e3 V% A
]8 [. F2 p; W% G& \
]
5 z X, \; a8 V( r2 Plet j 0
& ]$ T# M( d9 E5 }) C0 d- l7 Rlet note 0( Z) b0 j4 [" w% M/ I6 c# W# M
while[ j < people]6 V) _/ S- P. x! A
[
! _$ M, q" Z$ n+ t! nif( length (item i
; t) Q4 c. a8 N* |6 c[trade-record-all] of customer) > 3 )
! H# E2 |! I9 t. R& ~6 E f[/ {% I/ t" Z9 S: r( E4 W
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- ]+ C2 R N2 @9 V6 ]$ F/ K[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 c2 V" d; V' |) L8 c8 T+ m0 N
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 F2 k5 L( d7 R- A& K]
/ c# X9 E3 I8 t- P]
; q \8 ?; \5 E- K5 O/ }set global-proportion note
0 p) w: k; x* C+ P8 T0 m; ^+ g]
; l) T0 _0 W$ b D$ @end
/ h$ k, H Z$ X9 O# ~: M
4 j( g) P6 e7 i+ S/ Yto do-trade
0 Y5 T. r/ b, D" P7 M;;这个过程实际上是给双方作出评价的过程
8 l/ r/ s t3 T+ Z; Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 A5 K8 T+ {+ Y7 X; Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 a6 Z. E6 V9 h. F/ A& Eset trade-record-current lput(timer) trade-record-current& k1 }3 f- g# ?8 D, Z, l1 d* D. h
;;评价时间
. b w/ C% v7 y" O2 }. eask myself [
6 ` D+ R: [( n2 K/ i* @ W9 W* yupdate-local-reputation) v4 C: @! O9 S+ t. o
set trade-record-current lput([local-reputation] of myself) trade-record-current$ a& p+ ~ A! Q# U9 S1 z
]% Y( D4 G5 h" G% ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 h) j# T2 E, m% s+ c+ ]# W
;;将此次交易的记录加入到trade-record-one中( v4 F& l3 I2 {# _9 f4 W# |
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) o, c7 [3 l4 Nlet note (item 2 trade-record-current )0 v% C: }9 n- @. ~( [5 S9 u
set trade-record-current
; V0 ?1 f) d% s) A(replace-item 2 trade-record-current (item 3 trade-record-current))5 z7 c, m0 Y5 j, s u: {2 c# }
set trade-record-current
9 K! d6 w9 P- T(replace-item 3 trade-record-current note)) x1 ]9 v+ i3 C, X/ s6 t: A8 v5 d3 N! Q
4 N/ H) v! O8 x5 |
5 f( d, l8 z$ Yask customer [8 N# ~. e" U' b3 L9 N; W
update-local-reputation
# H) ^; k' [! C! B6 \) w6 Dset trade-record-current' f! p& V3 c' e9 ~) A( u8 F, X
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 j% w) _$ ~0 u# i" T]
0 q" [& c4 a# z8 o4 t ?7 c' I+ ^7 D- e" Q
2 h8 d8 W+ j1 f* |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( r0 Y) p! `$ }9 W& |9 r `7 b8 j" z. F- z& T) n. F# u- j
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& ]! D. G3 |7 _; B. ?) c
;;将此次交易的记录加入到customer的trade-record-all中4 \! O, P* I. A# l( `7 _; Y& ]! a
end( ` b8 t/ Y9 x+ g, b2 X
4 n. F: G2 N% N% f
to update-local-reputation/ w2 R7 m; k( a0 S
set [trade-record-one-len] of myself length [trade-record-one] of myself; F' | i. k' `6 s! d
6 u0 H7 Q, x5 A, z/ \5 _2 ?2 ^( p# [4 y
;;if [trade-record-one-len] of myself > 3
8 p) n" I q, S$ ]& c- y1 uupdate-neighbor-total
& c* {; `+ b0 @7 H9 Z" K7 };;更新邻居节点的数目,在此进行
: X2 n7 N) L+ O% H4 d' J4 dlet i 3
% Y# S, Y" f# k0 f& |let sum-time 0
- f0 z% j+ v- g- Q @7 w+ _6 fwhile[i < [trade-record-one-len] of myself]
, t! Q& b! m7 v% u3 _0 Z9 V[, c9 j% k P# A' K( G& K
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 j9 o( d) x4 P3 Z' a% e3 mset i
; L- e7 S" W. G0 r# W6 C* x/ y) F" N( i + 1)
( [: ?( N9 D9 Y( [8 E8 n8 f]
) v- {& g, q: T' z1 v Rlet j 3
6 n U: G1 [0 p2 z% C. g Clet sum-money 0! a7 R4 d6 Y5 x+ V4 e# W
while[j < [trade-record-one-len] of myself]
8 n" n" m8 K+ [# g: C8 _ z[- ~5 g& E1 U: U
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)
) j/ y, e* L& N* qset j
a/ o5 s8 P2 ~) \( j + 1)
0 M5 O' j5 P& d]
0 m& _+ n5 W3 I4 ~" `let k 3
# G( v2 u' {6 n2 B4 flet power 0
2 e% k. g/ V9 _5 Wlet local 0
7 i. ~' n" L7 v) D0 h7 r6 m! Jwhile [k <[trade-record-one-len] of myself]
8 f6 g4 c w! s/ ]6 B[. X3 U. B6 f* S7 y4 a
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)
. k4 J9 X/ n: @- K/ N9 zset k (k + 1)
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set [local-reputation] of myself (local)
; z% B! {) o. B% V$ _4 g& dend
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to update-neighbor-total$ J9 i( x1 d- k. `% \# [* [- K
9 g, v! l, w Q. L" M; uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 W4 c6 B! p, z; }: I! b3 K1 A3 V, k! o1 [2 H/ S
; F7 `: |& [ c% |2 g4 K& u
end
2 o5 ~; `: u+ [' e" q" Y$ a! \. o1 J
to update-credibility-ijl
+ J2 Z- c, r5 Q% F- x# ]2 e4 G, s. E( n
;;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。
( y! G; V6 `5 H; C1 o9 qlet l 00 R# }0 X: n6 N0 y" t6 u. G
while[ l < people ]* {7 n5 O1 j3 \ b2 U
;;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5 f7 o# w- e1 D6 F0 _ @
[
$ R5 U+ `, z1 N0 \' Z) @let trade-record-one-j-l-len length item l ([trade-record-all] of customer)# K& ~9 W6 N7 I
if (trade-record-one-j-l-len > 3)& Z( ~, ^8 M1 O: X$ g! H" Q' O1 w
[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; x2 z' x7 y% x/ y: ]6 U
let i 3% |; n) F3 `1 M+ Z/ w6 i0 i9 `! }7 O
let sum-time 0: U, v8 m: P e& |% p) ^
while[i < trade-record-one-len]
" C/ ?9 ]! s: X Y) x3 f. _& T$ l[
5 |- k* k; T0 Z; U# Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- R5 n1 j) E) O7 E- u Yset i4 y, w0 z, T; t
( i + 1)
. h" v9 p7 L& Y]
) E6 K+ }) P( R M2 n- t' Q; j8 {let credibility-i-j-l 0) b$ K" J5 o) E/ W. T% Y7 h `
;;i评价(j对jl的评价)' z" j5 `5 i( a- P+ O
let j 3
! t1 }: C, M8 b6 A# M+ H: jlet k 4% R# J/ T' ?& C& y6 F
while[j < trade-record-one-len]' B7 h9 f* ]. ]' t0 c' ?$ g
[
- K; ]2 D$ s/ o' ~; z9 ~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# _( G$ d! r4 C8 L- i4 w6 P( `
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)
$ w" _" P+ c+ Y9 ~4 {3 [2 {set j
6 q$ b( ?6 @/ f; K- y# a( j + 1)
+ ]4 K& G/ O2 F, v3 s5 T' q]
' d: R. |1 @& o0 m \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 ))
# `. \0 _4 J4 g. L+ S7 C) N6 S# O+ {" e. l2 ]3 ]' [' h/ i: F" x
, ]5 e. d# r0 ^# z# B7 S
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; d1 Q$ U, }, U! j" k0 O4 t;;及时更新i对l的评价质量的评价* K- ^; f4 w* u- L
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; }9 v, c- w9 e9 h2 r
set l (l + 1)
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end
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to update-credibility-list; W# ? p* c7 i) {1 h. M7 _. z
let i 0
+ Y) R. V5 i7 T0 ?while[i < people]
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5 [3 D8 ]1 e: j1 F+ x0 s6 B4 M6 Clet j 08 z7 s& Z* X/ x& L5 m
let note 0/ v) G4 b, w2 q7 w
let k 07 Z- n& b. h2 o/ {3 D* t/ |
;;计作出过评价的邻居节点的数目4 A( ?0 u' L$ d# _5 I$ g
while[j < people]
9 i! `* E2 L7 F: S& k[2 Z! a1 [1 l8 t5 I$ ?) p% ?
if (item j( [credibility] of turtle (i + 1)) != -1)
6 Y% O: C/ x& `) O3 f; `8 b4 I;;判断是否给本turtle的评价质量做出过评价的节点1 A8 K8 @/ m: @8 p. \8 x5 B
[set note (note + item j ([credibility]of turtle (i + 1)))
) D! Y% z) d; i/ w- N;;*(exp (-(people - 2)))/(people - 2))]
( X( ~/ f* Q6 z/ {8 vset k (k + 1)# Q) l- {* }* Q
]2 x: g" j) C' s6 H, \ A9 T1 Z
set j (j + 1)
3 w p# q' j q# W]
8 Q4 _1 @! D0 Fset note (note *(exp (- (1 / k)))/ k)6 l l4 T, H" J4 L4 P |1 c
set credibility-list (replace-item i credibility-list note)
5 u* G& x; j' N$ h. I, Oset i (i + 1)- V* z$ W/ ?1 L4 K6 M+ f2 V) q6 [2 M
]1 `( h' s8 S0 m# @& P7 p
end
+ j% j8 s- r; S5 m. I+ f
3 {7 j! _. Y, b3 Wto update-global-reputation-list
. H3 {: j* F3 d5 clet j 0) T* S; M$ Y2 C' c9 d9 I- f# [
while[j < people]
7 ^' n1 T( q) G' Y[
5 N; y8 L7 S8 x0 g$ @! Xlet new 0- n% C4 V" l& ~# ^& E3 H$ w6 z- F
;;暂存新的一个全局声誉4 y+ w2 @3 D8 K/ |5 ? }! B
let i 0
9 j2 t4 d" V" G- Ilet sum-money 0; ^# ?: A5 z0 o: L1 C4 C. @
let credibility-money 0) Y: h; ?; T1 q2 M
while [i < people]3 u( x8 ?! H5 \/ |& p. n/ v# V
[
8 k0 S6 I. H$ h& {/ kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; r* k; H" B1 i0 H; Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# B* b- W# _0 V5 eset i (i + 1)
, ]3 }, z& X/ p9 u b/ C]( { E. Q' `8 \- Q" D Q& b
let k 0
0 i# o( g- C% X4 i7 X }let new1 03 _# `; n+ O+ K$ B% K
while [k < people]
3 L" I/ N) q$ P[1 t' I- ?" C2 v) F/ g' x6 l7 _4 Q- a
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)
; G+ k* U+ P! \- K. }set k (k + 1)6 D, P, ]- O! v( T8 i& T
]
3 u, C" r5 t7 l3 Q5 Zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" E- M. [- [0 l n- Yset global-reputation-list (replace-item j global-reputation-list new); v( t( g) r8 _$ M9 R r
set j (j + 1)
: C' q% c l! q: d7 e0 s+ l) G9 O]
% W) v7 C) m' g m2 }end3 j$ o5 U- k) M* P( ?
7 U* L. m9 O: i4 v! h9 Z. P* B' w6 x* }
5 [; S% u! d( y' s$ g2 Z$ l4 A6 | P, B/ A6 }7 _
to get-color2 M I1 J5 s. a3 r4 A( a, S
$ I2 C& Z) D% f, T" B' g" @, u
set color blue$ P3 ^2 q0 L* o/ H2 C1 r
end, X2 \0 ?& s* a6 G1 s9 f- M
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to poll-class
- x0 f. q; D. L# _. b+ I% V4 pend- o1 W2 m0 G: L/ f
% P8 I! S7 P- h; {# n! q6 e6 v# ?to setup-plot1
5 a# k$ d5 ~0 W0 d. t' B
( M1 R8 S/ \# D; d \ ?set-current-plot "Trends-of-Local-reputation") d1 p* x! c, \$ g8 i/ ~
' r Z3 c$ a) }4 wset-plot-x-range 0 xmax+ Y, l! V/ O' S2 i8 u
& Y6 Y7 t" U& E3 ~+ @set-plot-y-range 0.0 ymax
; g. }# a0 \1 k, y) @2 T' ~end0 i" Q' U3 r2 R7 \/ M! K( K$ j
2 u, _5 Q8 W' M0 `to setup-plot27 p8 ^8 L$ ^8 e5 C
8 X$ v5 L8 P* o2 p2 p. l7 O3 b4 _& cset-current-plot "Trends-of-global-reputation"! Q# E$ N! i" I1 n
w5 A V2 c5 h3 o' A' wset-plot-x-range 0 xmax# k- `3 H5 D9 H! t% g; q/ i/ G
% ~6 C; T' A; B# r+ Q; o5 J
set-plot-y-range 0.0 ymax
4 w! t6 C. G* l) Uend( Q' Z& u% M0 }( `
( |& N$ I* R! T; M! g4 [) v
to setup-plot3
# y- ^" m4 J! i7 e- J, u# B
# \# M4 C8 B7 h4 Dset-current-plot "Trends-of-credibility") R. ^' d p | A+ B6 {" L* f3 `+ {8 C
1 n# ]; Q! \6 ~9 u6 [
set-plot-x-range 0 xmax
2 @: K( }6 M# n4 B. x: K \* h% i5 g, P4 u+ Q9 K
set-plot-y-range 0.0 ymax
0 G% }9 D1 }0 r" k9 {# [" nend
! r% s0 d3 L ]& D9 @
- u4 j: [ n: b: X% W+ q4 Nto do-plots
5 p0 X: p6 I* c% z5 N8 Aset-current-plot "Trends-of-Local-reputation"
& `1 H% n, D9 L2 Y& I! x& k/ Aset-current-plot-pen "Honest service"
2 X4 P) q( m' d; n6 Lend
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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