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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 K: |* q: y& I2 v' W. V4 ?6 ~
globals[ l Q- @2 A# F, e/ K* X
xmax% a9 U4 y9 d1 u$ C* E
ymax6 z1 c* g# Z1 S! J+ O( W
global-reputation-list$ R- |0 u0 s0 u0 P
p+ o" `# F- j% o3 D;;每一个turtle的全局声誉都存在此LIST中3 n4 o1 d7 l* z: h& K3 s
credibility-list
$ N/ F- ]" g, q' m( ~;;每一个turtle的评价可信度' l# E. ?+ ~+ r. u; b3 j" W
honest-service
! S. w. b* A/ M+ g7 s$ S/ ^5 eunhonest-service
0 {9 A# `0 F( Z; c6 E6 coscillation
" p0 W) @( P( ?3 Trand-dynamic
) P% P8 F7 F) U1 X+ b]
5 b& o5 l& r: `4 E
. v9 J# h; B2 B: ]* C# Aturtles-own[
- N% K b$ s7 o: ttrade-record-all
o+ q- I3 W: Y; ^;;a list of lists,由trade-record-one组成6 E3 t, V. s& D4 k. H/ ?5 Q
trade-record-one$ ]/ p% B+ n! y) i/ V8 t7 n
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, M$ m! ?* i" t1 t" ]; H. D) X$ \- \* X2 Z$ o+ |# b- ~9 E- A5 I
;;[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 g R; h( V- y* Y( 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]
* y' |0 r8 x" X3 O: V! g, acredibility-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, q- z# C' W5 V$ y+ k" l& W
neighbor-total
L5 c5 R$ Y. Y6 w) @% I5 s;;记录该turtle的邻居节点的数目+ @$ ]4 N& n9 _6 M% ^* v# a
trade-time* K6 ^. u3 c5 G0 } ^
;;当前发生交易的turtle的交易时间
! E4 u2 s$ B! [9 {1 Dappraise-give8 V) R+ V2 Z3 F- L9 B! g
;;当前发生交易时给出的评价
( K/ k8 m6 {6 Q8 v0 happraise-receive& ?. c1 u0 g4 P+ T7 s* N. l
;;当前发生交易时收到的评价- m0 n5 ]8 z1 t2 h) V4 D9 A
appraise-time
4 m/ k4 F! n8 P! R$ z9 l;;当前发生交易时的评价时间1 Y1 U3 A% v t& H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* I1 ]6 W1 z& Y6 h- w; O+ Rtrade-times-total
- ]( C! `" z: N% _: x;;与当前turtle的交易总次数! T4 ~/ u$ ]3 D! M8 _1 }
trade-money-total
% h! Z; O1 p( F8 C6 w9 @;;与当前turtle的交易总金额
/ j9 F, |5 G- F3 Y: }local-reputation
8 i! G0 K. i; @/ X5 `, ]global-reputation
/ m: t2 S; a' k: ^" y- a; k0 c) O) {credibility
: l" }4 U8 f: w" T. v& y;;评价可信度,每次交易后都需要更新
! c6 s: U: B/ m2 _2 i8 p& Q, vcredibility-all; |# x5 N, z. K/ S) _
;;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 D( z! A% N% Z& @
) ^- c l0 x6 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; \1 Q; Y6 d$ \- {3 f2 ^
credibility-one
9 d" \+ I# d; B- P6 d;;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
# D6 x) J. \1 }global-proportion/ t/ O0 {0 W/ Z0 ?6 W. W8 S
customer
, [1 _4 C' Y6 j6 V6 r5 d: Tcustomer-no
X6 \; A/ @9 n7 p2 Q: r: Ztrust-ok
' p) ~3 J: }# ~+ ~! Ztrade-record-one-len;;trade-record-one的长度5 g% F6 p7 c7 @: }6 u2 v1 J
]$ a# e; V4 |; }
6 H' U3 x- o" U6 m
;;setup procedure
" d/ t8 |! c7 @7 ?' L& @/ u% j4 O" L, { S5 o6 u
to setup) O* K7 z/ t2 M" U& e. Z; Z+ H
1 f& k8 P6 S. cca3 ?# d/ ?6 n6 P) N, K7 B
. a P$ _" E/ v. R0 jinitialize-settings
# E% J/ Y' N& n, [# `0 l- B7 ~% N& I) G7 K) H( k% Z
crt people [setup-turtles]
; w( O" h" I" `! a) D- O% r w" J4 c) M5 W) Y/ V+ u5 k
reset-timer
, y% c2 V, V1 f! V& u' K; r/ m, Q8 B5 z5 I0 ^2 T, m
poll-class
) K1 ~7 P, |/ S( j0 q/ ?/ ]' A, n# w2 s2 B* F! n1 O# ?2 [
setup-plots1 f- b9 W/ H4 }+ E# m
/ s( Q& H5 e. ^, O; fdo-plots
3 ]' W' h. a' ?4 Gend' ?/ R6 m- S D5 H( B
9 _8 T: B, U' s3 I5 wto initialize-settings0 a( |$ G+ {! |
9 Z" T* v) s* l( |# }6 H) eset global-reputation-list []
, L% D- H1 {4 Y* F# f
: ~) W$ z/ t, U0 rset credibility-list n-values people [0.5]: m% G+ m/ F& e& L" R
3 e5 g' Y8 D8 U7 ]4 S. B7 b5 R
set honest-service 0
, r1 l8 Q% X/ Q( ~& p" i
8 x( l5 @) h! S: O2 u' Qset unhonest-service 0
5 S+ ` v2 ?7 b0 n x4 B! A, H: R2 w: L, `
set oscillation 0
1 \$ l8 Q7 T6 {1 i0 A, X3 L
! J- u6 c3 T* Lset rand-dynamic 07 s: U6 L3 t& b; {7 B" }
end2 _$ I/ k; r7 ?, p
! {6 ^. i: y# ]( M. \: u4 a: dto setup-turtles
5 c, f" X; w9 x. a& p: S$ lset shape "person"* G/ r4 i" X" S5 U* L/ h. A9 @
setxy random-xcor random-ycor: _4 \, q I, U8 b% |7 Y
set trade-record-one []) }7 [$ i- z" M- ?
: b( L* T3 M$ H8 s6 s; a. ^* {
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 I. M6 K! [ U$ \
2 o2 {2 D" J3 B1 z! C6 r1 Z) E
set trade-record-current []' {5 u h# j8 B. ]% Z( Y" p) T
set credibility-receive []
( L& ^* {; Y/ J# ?set local-reputation 0.5
$ h# s! g4 r* fset neighbor-total 0
9 u' K& x0 p T2 {" W) y" n- lset trade-times-total 0* ?6 P* p a2 _0 }, u7 M
set trade-money-total 0, R6 S* A7 ~* n/ X7 g3 a
set customer nobody" U. p; a8 O; c% g _, [
set credibility-all n-values people [creat-credibility]" Q' H' }- h5 C) R$ |
set credibility n-values people [-1]) X% A! h( B, C' h5 E8 G$ U4 B
get-color6 a1 v; G" d' n6 p
6 n0 ^& v6 N1 d0 O
end
+ X4 p! i% @* A5 V2 ]* L( d b+ a+ p! Z
! s; A: b U8 @ Uto-report creat-credibility9 v2 y# B7 ?4 b0 R _# c
report n-values people [0.5]
% t5 C, e. z* Q; o2 G4 N, G4 Qend
- s4 @+ i! Z3 N8 o
% E, o- u9 d, y, e9 O, Ato setup-plots
6 H8 O9 m5 `$ t% s- Y0 V: |0 U) s2 _, {5 T. N- W" w. W2 P
set xmax 30! Y2 Z- K/ e* ]$ a) S% G$ V
; y9 k7 Z# y" ^7 p6 Q! xset ymax 1.0) J& E7 ~; t( m9 e' s. q+ \
- K/ t4 j. o' K3 Y* t! I, B1 ~ C& j
clear-all-plots
) o. w! Z% ^- J, L, K9 h/ a5 x2 F6 b; a" n
setup-plot1* A3 N% y/ l' I+ w: o5 l J
: h: t+ w& w1 Y
setup-plot25 O; q: y( W3 U& K; `. ?. Y
* h0 Y* D. O1 i+ g- \setup-plot37 `9 A* a; O- D- S, Q' H
end7 P0 [( m8 R3 D% I$ p
Z) ^9 ?! {3 B6 _( [) I: z! Z0 F;;run time procedures
* v- `1 G! T- {3 }: Q- B# X" d6 K! I; ~. B
to go! u% C5 F- n2 _9 D3 P; _$ [. o, E
4 \; D1 [. h3 W" T" A& E
ask turtles [do-business]- |- i: F* }) N! V% W
end/ x( {) n$ z5 @. O
2 U; ?' f3 S4 Fto do-business
7 `- ]0 x1 S0 O/ A8 K5 B1 u0 b+ G6 }; i: z
6 A# p- E9 r) Y2 B2 q- Y( e
rt random 360; c. `; h0 f* n' ^$ }- ~
- \* P; i, h$ q( ifd 1
% x) A; |0 S3 W3 }( O3 }
1 m+ G& i# y Q" z& [3 Vifelse(other turtles-here != nobody)[
1 I$ u3 x! F+ L2 q- p3 \) \- `! T8 z0 D
set customer one-of other turtles-here b5 x' _- C( x" @5 h0 o
4 T+ p( p+ |! }5 @5 G, N;; set [customer] of customer myself
2 i8 [8 M! M# S; N6 b$ y- F( G
0 Q& k# y6 n1 g. T; eset [trade-record-one] of self item (([who] of customer) - 1)
5 g0 D9 ]" c$ H/ E* c4 g S! P, D' H" Q) w[trade-record-all]of self5 d, N) [. @, I* W* F) C2 M; G
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self, ^ ^: W) @# S/ v) {9 @ P9 {. ~
9 ]9 ^. Y; N7 [ J3 E* ]& Hset [trade-record-one] of customer item (([who] of self) - 1)8 Q! t1 S( d, r
[trade-record-all]of customer
; A% t7 t$ o+ M U4 A
+ `: H( S) t: g( yset [trade-record-one-len] of self length [trade-record-one] of self
8 d; \* G5 X5 B1 L
# Z7 l, @- F9 T8 x% A% Fset trade-record-current( list (timer) (random money-upper-limit))
* S: Q# a! D% F1 l* O( D
9 p# h" J! A. c: dask self [do-trust]$ k* E# j. J2 F4 ?; G4 s
;;先求i对j的信任度
7 g; U0 M4 H+ [2 G( ]0 |' }) z( I& g+ N
if ([trust-ok] of self)6 P2 L5 o- p9 X2 E
;;根据i对j的信任度来决定是否与j进行交易[' \8 u% D" [% V1 e$ t
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
5 o- R: W4 O2 z& N
. _" o; R+ I! k% K3 o[
/ Y3 |* k# ]* L) n6 K4 {& J2 D+ N" _1 G0 v/ I( b: R, L
do-trade
% x I @3 ^; j% K7 s3 I/ u/ }* q3 I% [7 V( Q6 I% l' U4 T4 M
update-credibility-ijl7 v5 J1 R' \9 X$ v# K: l, D
6 M/ F5 ?" J3 I" l5 h0 aupdate-credibility-list' i4 ?! ?, f& n) B2 ?
+ V, C+ u4 U; [1 f
% N: g. s( ?- _4 dupdate-global-reputation-list
2 K0 X& M2 A0 J4 l$ {
7 W/ e% F% Y. ^0 h; [9 bpoll-class
; c: \/ D0 c2 D2 v4 V
5 }$ v/ L0 P/ C8 ] lget-color. p) C4 s6 I$ q
& l( z" x) g0 T/ ^; B" Q. u/ d]] k5 S& i3 e; x/ I" l
9 |+ h$ q$ ?# N% D& P/ m5 W;;如果所得的信任度满足条件,则进行交易5 x/ Z* ?: m3 b- A, e
5 S+ S5 @6 O- S
[5 g6 d. Y3 k; T+ p
; b, l: |# D& v3 s4 nrt random 3608 f& I4 i j. i% i" [/ f% r
! n: e6 F- X3 w0 `; v; D
fd 16 S1 T4 r) e+ q' d5 G& [* G0 N) N
! i3 f2 l% U% O+ y! W: E* k]" u7 n7 S) U e" t
" Z3 i+ U6 a8 W" Send
* ~, v6 x0 p6 P! k4 v! Z6 D" |/ ?+ R3 e0 t( ^! b% J, a7 y
to do-trust 8 U' b5 }8 E2 n8 W; R( |
set trust-ok False
! b, B. K' [) H4 C1 S& l a }" t6 |' V8 ~' d! s8 l
% u$ F0 j) q4 j$ C. {: d' k' B5 m0 hlet max-trade-times 0
! t9 s. ?9 e$ Y* O5 n' Y6 cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ K2 v! V8 `5 e' F/ ?: Rlet max-trade-money 0
5 J' B. Z1 p+ \4 n3 yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& x$ m& c0 d/ \' v; X7 F, u8 ^
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). _; d( `$ J* u% t9 @( O. X! O
/ O/ J- S! N p4 x O5 |: p' l2 u
3 w# T/ Z0 M6 _$ \4 C% Bget-global-proportion
6 Y: V7 n+ |8 l- zlet trust-value
8 ]+ `3 T8 j" i$ ^6 r' Q6 _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)+ F S7 e J) i% x$ |
if(trust-value > trade-trust-value)
1 ] E9 h1 a) a$ B[set trust-ok true]+ D5 C8 `! v) v) B% i
end
" A( k: W5 |9 t" v( c+ T" U- u2 h( N# W3 F4 m
to get-global-proportion' H( X$ q2 B2 D; x. f# c: H( |
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: D) d7 K0 s; `5 l[set global-proportion 0]) x S7 G) q1 h; m3 h8 ]
[let i 0- b7 l* j2 q5 I6 ]+ @1 ^1 R0 z( N
let sum-money 0# l% N* Z2 P \1 j0 M
while[ i < people]
' b( x) t1 k+ O3 T[
; a* O* f* l. \if( length (item i
: r' e' Z1 Y5 I9 k- H[trade-record-all] of customer) > 3 )
& z( g, r+ e( N3 y[
: _4 ^% U' u, N( Z8 `0 V' xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 W2 d8 s2 o$ I1 \$ M6 t( U
]+ l' n* v2 L; x4 s) R# h- G
]
! a2 [; S3 j2 U5 ~) t7 o8 Hlet j 0
6 y3 j3 A& V( ~& ulet note 0% X% W# n5 h) r8 b/ e T+ @
while[ j < people]
7 t5 \0 u! t$ D3 {- f[
7 f# O" R% R6 z% u! kif( length (item i
+ ^8 p+ g9 W+ ^$ g! ][trade-record-all] of customer) > 3 )7 l! J& G2 {8 O; N, t* q* s g
[
; n. X4 J. g( q3 [: v' x# Fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- R; P: o+ \0 o* r4 u[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ ~) I$ x# H4 Q) b
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 i4 C: H# _8 |* q! @]: n; m0 d: p$ H. M. x9 l# i
]) L4 u. O% w% u" l0 y* l1 P1 h5 g
set global-proportion note
J2 R7 G5 H! [! D7 `]- d) X, Y6 z9 c1 n' B: z, p. W
end
! N I) O. F% {" |+ C: T! G/ p9 {5 Z" z
to do-trade/ D9 m; E$ n& G, V" t% C o O" S4 {
;;这个过程实际上是给双方作出评价的过程' _1 x9 \+ T* J- k$ q. o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% V, l0 Z# m2 k3 k5 r( Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% c H2 T, D$ o6 ]/ d/ Nset trade-record-current lput(timer) trade-record-current
7 T3 ?- t8 t2 f6 ^! f1 F;;评价时间
& A8 S; @7 o R2 J. Z. M. A) m. Vask myself [
" f% S( y0 O; H9 ]: N& k2 M7 yupdate-local-reputation6 W0 o2 m: _1 t$ J# M6 m
set trade-record-current lput([local-reputation] of myself) trade-record-current
0 K* F+ [" ?, ]% p4 p9 o- r$ s]+ {9 Z4 a8 ]) `; [
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 v1 t# s2 P. G;;将此次交易的记录加入到trade-record-one中
+ O5 X# c( `* p gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( v! @' [8 f# Z. Y7 y
let note (item 2 trade-record-current )
+ ~$ T3 C; p0 G; U) i/ }7 oset trade-record-current; P5 m% {, [. n9 A( W' e9 ~
(replace-item 2 trade-record-current (item 3 trade-record-current))* ~! J( x ]% B0 e2 M7 X3 H
set trade-record-current
; v k0 u& Y R& ?8 d(replace-item 3 trade-record-current note)# | R& h( @. ^+ x% o% g8 v
/ e$ W0 Z+ U9 e1 x, H- p* R7 U* [( r5 G$ c- U% F- ~* U
ask customer [. j! E6 ]' s, q; J: y
update-local-reputation* Y/ k9 N c( C5 A# g
set trade-record-current3 K" F. i; K0 P3 |! x+ z5 c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 u2 M" I) k' x. p' @7 a9 y
]
# h, E& b8 i; E4 a! B) D
% S* d' x/ @" }7 A8 b
( [5 [1 ~: K( l$ B3 \' \set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 A) J6 W4 U( J2 Q- A' T* D1 B0 `7 T d5 n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# q- k* U9 ^2 w: \" K( i3 x- W% }7 P;;将此次交易的记录加入到customer的trade-record-all中! S7 J2 V1 h: Y! N, y0 Z# m3 D% V
end' g4 C/ X" i6 k* K v2 ~
+ z$ o$ ?& B4 r$ Ato update-local-reputation
0 K' c" Y' w4 ]% xset [trade-record-one-len] of myself length [trade-record-one] of myself
: A6 a; x& ?5 d6 J& M4 P5 u* `# [1 k
# F9 s2 \& t3 _1 I;;if [trade-record-one-len] of myself > 3 " I( S7 ^3 I' s) A3 ~9 T
update-neighbor-total( Z- H' S& ~0 m9 C2 j& [
;;更新邻居节点的数目,在此进行; T; {$ _, F+ z; f! I0 _- ]! y% J- ^
let i 3* V& s8 e1 h: W1 `6 J5 c r
let sum-time 0
# }1 _( g/ F! ^4 F( I7 z! o3 f- kwhile[i < [trade-record-one-len] of myself]
0 Q/ I6 n# g. A6 _: Z[
- Q1 P2 l1 w* }6 ?0 Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) C/ X0 _8 R% ]4 W- qset i0 ]8 L0 t$ e0 J. f& p9 F
( i + 1)
1 K1 i. @+ w1 C/ {5 B# D" F]
. V# U! N# y3 R/ m: n0 Mlet j 3' f/ \6 R6 g: c& q
let sum-money 05 D4 \5 g5 ^1 K! u5 C" p8 [
while[j < [trade-record-one-len] of myself]
: x l- ]- n$ ^: Q2 d, c[
6 P9 `+ D* T, S6 E+ Fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
: r: j; b" @/ L/ Z4 \/ r0 qset j
/ Q9 x, M4 v, Q7 ^% |' V5 Q7 C' }( j + 1)1 ~+ k7 g" F* V8 Y4 m, i8 v
]: y3 A d, i+ }) v7 l" ?# W$ P- }( L
let k 3# {4 G, a" S' R' @
let power 0
! x2 U- b: l7 c. V& e, w5 hlet local 02 `( n0 A/ }- ~ Q+ m
while [k <[trade-record-one-len] of myself]
! y$ |# g1 p4 j2 k/ R[ {) H ~/ G" k5 k/ q4 L0 L
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)
; k' X: s# e7 }6 K+ Tset k (k + 1)
5 j* G; K# Z& _# _, I]
1 W# u' n; }. l8 ~& [4 Yset [local-reputation] of myself (local)7 `4 I9 s" t9 D/ {/ e, t
end
. ^# V# g6 W D9 o8 y3 s' h4 t. H, H. Q5 s: H
to update-neighbor-total: R# e6 r$ z" b. J6 @4 e
- s" l# i, [" L. w7 d. b) V
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. M+ }3 B/ e2 Q* u+ ~4 s6 H
2 {% k+ P% k4 s/ C% C8 ?/ N3 j- e1 Y2 n/ N8 j5 v
end
) [5 O D' L% H
7 U/ V/ k5 ?" o" w1 ~( u5 `; u5 Nto update-credibility-ijl
8 c' k$ x& L/ J, [+ Z+ \) A. F" d9 }* @
;;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。
5 \; I( m( _" J, clet l 0
( n( l. }" U% y4 M9 i1 C/ Wwhile[ l < people ]
# s" ]+ j2 x: n;;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( b( [: ^& D( A
[. h. T: M0 g1 ^. ? |- _6 O7 l
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ V5 e; s7 C8 z4 J+ `" `* Yif (trade-record-one-j-l-len > 3)
' s9 O' F% ?- p; z" i[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
6 w! P3 e* i- T+ {8 `let i 38 k6 z' Z ?% {/ y% R! Z! V
let sum-time 08 a4 {0 y7 j8 l/ ? }& A& Z' e0 P8 n
while[i < trade-record-one-len]
; D- W, k' M) a3 _& M[
. m @$ v3 x: H! X$ m' R9 ?! Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- \5 S4 b: H3 q" |% t7 k/ _set i5 @0 Q0 P1 R7 S j7 `& A8 L
( i + 1)
u' p+ M* F! z3 m/ Q]
6 q2 |+ H$ p; j% S' }) a& Clet credibility-i-j-l 0; _; s+ c8 X$ o+ ?
;;i评价(j对jl的评价)
/ N! v- F; A1 S5 s( @' r$ \3 Xlet j 3 u% _" a& d& l9 g5 J
let k 43 a- m! |6 r& V W) u# B
while[j < trade-record-one-len]) D8 T; m7 n& s- W4 }
[/ y B K3 ?( m8 M+ V t2 A
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# l- B6 ?2 t$ z8 C4 d8 _4 Q
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)3 k- W* J& L7 _" X% `2 z
set j
. H6 f- k# P: h; E$ b( j + 1)
0 Q! Y3 i0 N0 d2 i+ G]
7 v X& ]" n) c! a R' Sset [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 ))
( F! U# ~* Q0 S6 w M9 J% B
# E# G7 l `8 u3 t4 [
" G: x( {/ T; W% v* o5 U$ glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ n) q2 s T4 T( C2 R# \
;;及时更新i对l的评价质量的评价 K4 ?) t1 E! q7 J, R
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 X" x8 s, a- {3 u7 g$ _; \set l (l + 1)- o ?3 e* g! T- W/ r
]
& j: |% K$ F! I$ y+ j' gend
o4 }; C% }- f) W, s2 c2 i+ W3 {' [- J+ w6 W
to update-credibility-list
& u5 \% O! b, b8 n/ x. elet i 07 v1 q8 o- M0 Z
while[i < people]
$ a V' |2 U/ D2 _! [[
1 L2 u- m8 u3 D f* klet j 0
% I4 y( b/ \2 slet note 0/ {, K4 }9 f6 o3 }( E
let k 0
7 Z2 p) Q. I) K( B* H2 |;;计作出过评价的邻居节点的数目
5 y/ Z1 j m% L& k* awhile[j < people]
5 u% w2 X4 K& A' J; D[
8 A4 ^7 H% f6 J) e/ n; }if (item j( [credibility] of turtle (i + 1)) != -1)% w- u2 X: F: S- w
;;判断是否给本turtle的评价质量做出过评价的节点8 Y% ?1 I2 y, `) D2 c
[set note (note + item j ([credibility]of turtle (i + 1)))
1 M \( L# U! k' V, L;;*(exp (-(people - 2)))/(people - 2))]
& h* Y |4 x2 nset k (k + 1)
( V% W2 G; M: l+ y G! `" i1 {]
, h3 h& l2 O$ ?* U$ ~6 n Sset j (j + 1)( M! u; |! [$ z8 o9 k3 K
]2 ?* D5 H1 m7 p& C: x0 Z
set note (note *(exp (- (1 / k)))/ k)
% l( G0 Y" T# Qset credibility-list (replace-item i credibility-list note)" Y& a F4 }2 M' \/ b& b0 k1 K o( _0 F
set i (i + 1)
5 D! v! V) E0 x6 Y]: D O- o$ s" l4 }5 n9 R9 T7 x" G: H
end0 j6 x- z. V( m9 u+ h! E9 Q
3 }( ]6 G) F. d+ |
to update-global-reputation-list! ^! i( s& j$ L
let j 02 S5 @, u" y+ i: |) c$ {8 [
while[j < people]- N+ n7 x4 _$ X' v8 E* v
[
* S) r! P) ?- m- z0 b% k' |let new 0
3 K$ e/ x9 G) U3 [$ f: \3 z;;暂存新的一个全局声誉6 R$ U" y3 T7 m. t# c
let i 04 |' J8 H* @5 I. I' B: V
let sum-money 07 D0 Q6 _/ \# Y2 L) f. ^3 p
let credibility-money 0; A G! j+ R" O! v6 U. t, c) B
while [i < people]
+ R5 O+ _& y& q1 x7 S- a' u[
4 p8 a% ]" I. `set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 z. f5 K. U9 l( L
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 V- w H% |2 I" z, ^
set i (i + 1)
/ }# ~; O8 T1 X4 K' q/ E]6 c+ d. T1 e; H- L
let k 0
6 B: Y) l3 ^/ O% xlet new1 03 k$ m$ ~, m7 {4 V7 b. |' D
while [k < people]
& i$ ?( w# i; C[6 r/ J( A7 C6 _& ]1 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)
6 r: P9 B. Z9 a! W( @4 Fset k (k + 1)8 Z; f+ h- l$ f$ r, N* Z! n
]/ r1 F- i! }: e/ v. i' S+ R& @* Y4 ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + ~- L2 l4 e, H; F1 a: p& v( ^7 a, _
set global-reputation-list (replace-item j global-reputation-list new)& X. s6 A$ M" {) u: T2 X# y
set j (j + 1)
4 j- f: J6 B+ J5 S2 d]! k- N# C9 H& \
end: z! V0 ^# e6 w1 r5 A
/ X: r0 G/ K1 z* ~! p
- X3 F5 `( |# l; G" S5 v9 w. K# }$ Y- ~- i
to get-color
% O5 o$ c0 _/ g% u: k+ j4 F
7 E3 [$ U0 e2 \1 e7 ~set color blue" D3 g* U' f; b# k" K8 @
end
8 F) v9 j. s! c( u- K# a: q% {% f* s! M8 m: `5 b
to poll-class+ H: O1 m: t) }3 u3 R2 E
end0 F2 B2 i5 d( ?; n; S" A* v e# y" u
5 Z9 t) k( A! M( Y. d5 e, qto setup-plot1; t0 x: N; `4 F, h1 N; A
. k }' |. \1 ~# B* ?# L3 w
set-current-plot "Trends-of-Local-reputation"
w* F) Q% z7 K. |) B( k) j, O' F
6 f: q3 A4 e( Z+ L, M! Dset-plot-x-range 0 xmax3 E) i4 x. t5 s, P8 f; I0 ~5 H
4 s* C) U- ^# n5 @
set-plot-y-range 0.0 ymax
2 T p* e; I. k4 iend
0 ^; y9 U7 p8 Q. m1 Q& X: `: b" U4 j* V
to setup-plot2 P& \1 b/ H: U) O$ L. l
, V" ^' e! H9 f6 G) ?; I1 f* aset-current-plot "Trends-of-global-reputation" w: Z5 K& M+ L% U# c& I" f
% f9 q9 @ ^& E$ r+ P- p& w7 Uset-plot-x-range 0 xmax
- |; [7 l' m/ C* w/ e# x6 i
H. X4 H9 K; B! u, ]4 a+ hset-plot-y-range 0.0 ymax
% H( F0 d# A; J" B. A1 gend1 U$ J0 |' x- y, [/ J5 r( g# m
6 h4 g" {7 w3 q
to setup-plot3( A/ j& h, A6 Q/ n! m! G9 ?$ S
+ e5 U L1 L9 ~; c8 w6 N
set-current-plot "Trends-of-credibility"
) N9 j& b: R5 [1 `$ Q
8 Y9 U8 V7 I% H# z6 k5 W; f4 O% Cset-plot-x-range 0 xmax
# i3 F; M* E7 o# F9 F* d
! N. u) m6 k( w1 R! pset-plot-y-range 0.0 ymax
[; J! {' H% g0 `( O, Z3 _end, K" @, s# ]1 F+ R: j
/ v( u4 \7 a8 e7 p, J: B7 |/ O. R0 w
to do-plots! U, e) z% d$ {2 f5 `. |2 D
set-current-plot "Trends-of-Local-reputation"
! \0 r/ c. j2 N" F* ?9 J# `set-current-plot-pen "Honest service"
# }4 G/ n; _# y. ^. _1 ]end& n/ `$ Q& B6 C% c
) Q3 v- n l. r" r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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