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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
; g: c$ \1 f( W1 H4 |! g0 F; \globals[/ |$ K( `: w% U B1 N. V/ R0 J/ H, z
xmax6 z2 F E, p7 Y
ymax
c/ ^" I. Y* ?, ]global-reputation-list' V5 o( O* n% B% f9 j. K
. o7 `9 g( H) y: _( |5 Q2 |8 A
;;每一个turtle的全局声誉都存在此LIST中/ T8 e: w& q6 r* V% b! Y
credibility-list
0 t$ Q( H- M; H/ t. B;;每一个turtle的评价可信度5 M0 Q& V" ]; U1 A& ?8 {
honest-service
# R: W E6 j' @( w2 |unhonest-service7 Q; D8 d; m+ ^' `
oscillation
0 g, {# O7 d# a1 c' ^2 f6 yrand-dynamic% t0 F' E& ^* D* P; M" u; T
] D& b0 [# e7 C6 P+ E
2 r& a3 f; \8 W; d3 }; F: S% R3 g2 q- E' e
turtles-own[4 M% c e% [4 x/ J' S; d1 m; a# N
trade-record-all
; L$ P0 ?. Z! e! c2 Q;;a list of lists,由trade-record-one组成
1 z- U3 Z& q& Z4 B# J' T; wtrade-record-one
4 t' P& a% e! _, z; f1 s;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 f* H9 u- \+ u( Z0 b
, D1 e/ D* Z9 @8 z; A7 c) q;;[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]]
5 `, Y m8 f& H7 y; k8 T0 Dtrade-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]# a8 R# G$ m; Z! K% N
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$ h- N( U( ~8 r
neighbor-total! \. H' }: C. \+ q& z
;;记录该turtle的邻居节点的数目3 g2 M7 z2 ~7 Z1 r6 n8 E H
trade-time
* ~7 L/ o3 q5 k* x;;当前发生交易的turtle的交易时间
3 k) \6 h6 p( X, Jappraise-give" j" |0 L. r7 h# F9 S+ C/ \! M. j
;;当前发生交易时给出的评价
' d% l- ~' ]' C* i: zappraise-receive
6 F5 A; N. m! M;;当前发生交易时收到的评价+ \0 Q7 w+ @! V# W) B R5 I- |+ ?
appraise-time
- Q) x; r7 w/ W y5 U- i;;当前发生交易时的评价时间8 G6 Y3 V$ O4 a. A. i( C2 z# f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
9 k- ^7 i& C. N+ V H; L4 gtrade-times-total
! f7 M ^- q6 ^/ T. Q3 v- Q, P;;与当前turtle的交易总次数. u# V5 d: B3 F9 ~
trade-money-total
n! Y% m6 {& }; ]5 p9 G;;与当前turtle的交易总金额
5 a6 c. Z" ^- q! O5 [/ z4 _local-reputation
7 A8 s( l( t2 j/ R) z* c& O$ zglobal-reputation# F* j3 Y7 b, v+ D+ Y. M
credibility J7 @0 o6 W$ ?; U; S7 \, b9 K
;;评价可信度,每次交易后都需要更新
* S2 J6 H$ s$ m$ s+ l. w8 M! b0 Dcredibility-all
3 ?" N) h0 ~: ^# u# \ f7 K;;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
& M( t4 S: @. V0 a" H4 j6 x% C& @% h2 \5 \ D W% @/ C. c6 z: Z% }
;;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0.50 h8 f3 S' m0 i- O' {
credibility-one
/ G e- m* |$ y- z' t;;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 n& x6 A4 z/ {0 z
global-proportion
2 ~+ {/ G. ?3 K' z+ Lcustomer2 A0 g) e' p x3 p
customer-no
* n' w( w% D* ~/ L% E# c" t& Y2 Ctrust-ok: i3 ]. e0 Q8 U% A* P% ]1 t
trade-record-one-len;;trade-record-one的长度7 s( y& t. T( ^$ J: l
]8 @, R4 @ \, |, @( y
! }! @3 _' J( I- C# y;;setup procedure/ \8 c/ H$ L# W
1 A4 f% C8 p# u/ p- xto setup+ y$ e" h7 _( q7 O6 z/ [+ |
6 `2 ?; t/ t9 k( K
ca
$ g c. \0 l% k) x6 h! C6 \1 o8 k$ q3 @
initialize-settings2 M/ j _9 g: o
( H+ X2 I1 ^9 @" c3 r
crt people [setup-turtles]
! m8 N- |: m. u: w- [
2 p# f9 m* s0 B% freset-timer
# \8 t' y* j/ [1 B8 J& {6 a
, r$ p; ?' L0 K: Epoll-class4 J! _. c) z/ K: n+ Y& q0 J- B5 X
S% T" Z4 u1 r* W+ j' Dsetup-plots3 N8 ~9 U5 _. o
! S3 s$ t% y- s+ jdo-plots$ s. _! |6 I3 I- x( e3 J7 c5 f. J/ ?
end
U, ^* J; p' ]. \0 f! Z0 z
P: x3 K6 b6 L8 s6 C6 qto initialize-settings
* i9 B4 L) E7 Z: U0 l9 @
( s4 I7 |; c$ G, ]set global-reputation-list []
: s6 a) u4 z/ R1 l$ j0 [ C7 q, N, O$ G* e
set credibility-list n-values people [0.5]% Q( j5 k7 k; i2 h5 o
2 k \: }9 S8 j- ]+ L# B9 ]
set honest-service 0
5 L7 N- c* T; P! |/ I! e' x0 @1 y( r! i# w" b
set unhonest-service 01 S4 r2 {1 v; V4 N. B: Z
* k* w% w* U- p% R/ X
set oscillation 07 i6 o X/ w6 _* Z$ n
2 x9 z8 z) E1 w% D% Gset rand-dynamic 0" A, o" \, x; T( I8 n) z
end
! P$ G$ u8 X' e+ I0 S
) D9 y( E% ~2 I6 qto setup-turtles 6 _; @4 J' J, ^" K" ?
set shape "person"
/ T L5 t8 Y) s, e" ?; esetxy random-xcor random-ycor
$ f# s$ o6 M( X7 p( W. Y% L7 b# nset trade-record-one []
: p! h( @' W( ]$ _! h4 \
0 y1 o" Q6 z8 v& M7 h; Hset trade-record-all n-values people [(list (? + 1) 0 0)]
8 ?; t) u: N/ i4 D
X: k# ^* s1 T/ D! gset trade-record-current []
3 G! _$ `# J" t6 B9 r! v9 [set credibility-receive []$ b! g$ |6 ]' F/ m
set local-reputation 0.5
* m6 Y7 B' S- P. n) l9 ~+ r$ r ?set neighbor-total 0
/ {4 b8 d6 M* q/ Bset trade-times-total 0
. g4 j: L3 u' S( y5 b& x1 _( d0 h5 Z/ Sset trade-money-total 0
4 {; c$ G! ?, ~0 j9 s4 p* B6 Oset customer nobody' u/ o' v/ [8 u- M; B
set credibility-all n-values people [creat-credibility], Z3 ]$ l5 g+ u* V/ M& D3 A
set credibility n-values people [-1]
) W$ G. r5 O/ A( y/ \" V1 bget-color
2 M4 \$ ^- R4 M m2 k2 Z7 Q% |3 n2 h3 }3 u; E
end
* y9 Y% a7 ?/ S
% O' Q1 A' R3 Y; ^& b8 q. eto-report creat-credibility
6 h t+ g8 n/ Yreport n-values people [0.5]. Y: o3 H, W V9 F1 b" I0 W! B
end
8 n( L3 z# M4 s6 q0 e$ W7 l" C2 x9 z: `5 v' n0 H
to setup-plots% J- o$ y6 Y8 s3 i/ w1 [
) K- n8 a0 X! _. V% R. c6 @) Z. i
set xmax 30
& r0 e2 C6 ?& }3 G' j) B. g" F3 A% m. e- I+ @9 S F
set ymax 1.05 b; W7 x, e: j2 p- j1 k# Y
: U. X5 h6 [) [, X# F* ^
clear-all-plots+ E. s ?* ^7 ~3 r& X
0 e/ U% W) w3 Q% }' E/ r3 {setup-plot17 S$ [5 y) e0 q9 ~& }# e! a1 o0 s
4 x% J y2 o6 v a2 Qsetup-plot28 I7 G3 K0 e# o% g s
# a1 e9 Y3 Q" @8 W/ |6 S- ksetup-plot3
* v3 i5 Y% R+ z; k2 O1 i" Q' qend- v% F# b% g; d* k7 v: i
. ?$ R0 @: M! U6 T1 j |
;;run time procedures9 m# R( K' _2 h# {' m, d
% k6 u( G# i8 V m4 z2 X' v% Rto go) D! i5 P' W; R
" q( N* W3 h; _& U3 N
ask turtles [do-business]
5 n! z. h) a; L0 L+ A1 yend
4 D0 w2 @1 W3 O1 z; c) C- J7 X( A" m! b5 Z8 q1 p
to do-business 0 R: O" }7 [9 q
+ D- |" u4 W: Z \& B3 O1 ^
; m/ W3 {) V* J9 | prt random 3608 z) V, _/ t$ H( |6 V4 y
2 G+ D' f1 Q9 d* t+ e( j$ ?9 a! ifd 19 e \- _- D5 v& R9 U7 z3 H/ @
# G; h( [+ \8 y2 kifelse(other turtles-here != nobody)[
9 I7 Y7 m) w# W4 x4 U+ s- T( P! M. q( U3 n+ O6 P. r' u
set customer one-of other turtles-here# l# t. z: [: E# H' e
: u9 f, B V0 Y# e# `;; set [customer] of customer myself
6 j e& r' X9 g' X% k4 ~
* @" E* G7 x i7 j: a! Uset [trade-record-one] of self item (([who] of customer) - 1)
7 R- o: U8 ]: o$ |3 `[trade-record-all]of self
/ l, M. {( b/ q# r/ }& A;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self" K+ |5 L; s D2 @( B9 o
' g$ o& E6 h1 [; E* I
set [trade-record-one] of customer item (([who] of self) - 1)
" z3 K: D# i4 I+ j[trade-record-all]of customer
- e/ [! U! |- O4 e' I9 w9 Y Q9 h
set [trade-record-one-len] of self length [trade-record-one] of self" U2 A, ]: ?& i+ F1 B' b. N; I& ]
2 {8 c* r$ l- Q" ^5 ^
set trade-record-current( list (timer) (random money-upper-limit))
1 c5 c: R" n2 T: i/ j7 P) g( g: q* B* y1 D1 b3 G3 G
ask self [do-trust]
2 P/ d2 }8 y# P1 ~;;先求i对j的信任度
, d3 h R$ f2 l3 M5 H$ e$ |
3 a. Q u( K! h) E0 G7 y# k+ qif ([trust-ok] of self)$ V, ~: i3 B; Z; F5 V
;;根据i对j的信任度来决定是否与j进行交易[
5 F" V. t$ P8 M9 Gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 Z0 @# }$ i- Z6 e' }
* M2 l8 N( w9 W6 U9 @1 m4 l[
2 ^& c7 [! N4 r) [; B9 m N! \
0 K) }" C6 d6 X# D4 Edo-trade" r+ o) `, i3 S' N X G4 i
1 O* D" |6 |2 _; N0 ^4 Pupdate-credibility-ijl
+ L7 v" P5 m5 O! ~# O t
* c' C8 v) N4 k8 C$ pupdate-credibility-list
) M% |+ P4 k5 L, ~# E" w7 J! X p
) Y7 G3 U/ F1 j
update-global-reputation-list4 g0 m4 v) H6 e0 w' i% g
5 x' d' G6 y) K5 n# c- d+ D
poll-class6 v$ G, ]. S! ` O- \0 |8 e7 _, ^0 I" k
6 L" G8 H8 W" ~2 y7 Y5 u
get-color# r+ i0 A' _: c& T
! T, o+ e/ l9 p9 ?! J]]
) }% }: z5 F0 N/ X0 v6 l
. d6 H; F% T# U! ?; J) u, L- g2 P;;如果所得的信任度满足条件,则进行交易1 r! y% R1 w! s, c h
& P. x* R1 A& q; ?, d
[
2 }7 g9 H' m% J% F6 F# b
5 R7 v9 O' `: n& }rt random 360) b5 F {. k0 E6 ^
4 S- F6 b0 v; @5 T$ i R3 U
fd 17 h# X# }$ A1 @0 M% Y4 F; P
: u) a/ P0 w7 _) @
]- c2 O- `# o) \& q5 L
) P& k( G! f6 [7 V9 S/ |+ r+ N
end
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to do-trust
! d6 }/ D( v, B9 ]* Kset trust-ok False+ G4 S) G: t: u# n
& |. G9 U0 i, o- i
. L8 m3 l# v' y. A0 g4 Q4 K" \' R
let max-trade-times 0
$ n v# m |+ W" X5 ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. E6 O, y9 @ i
let max-trade-money 0
! _6 t e; ~& h, ^foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 |* B' m8 }- S+ z2 m8 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))
6 r2 J3 w, |; m. y" E+ q; N4 {% e% q: q: T2 u p# C7 j" z
4 g' _; |: I6 R j3 Vget-global-proportion
. A- o3 T) H' {/ K+ E1 elet trust-value
# N# _( n! n+ |9 s$ ~6 Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)) U v% h( `' e7 H
if(trust-value > trade-trust-value): y+ g8 T: C: h X7 I
[set trust-ok true]
' ?/ t, Z! }, V* B5 i' kend
8 O( S! h7 \# v# S" s1 s
6 h7 e1 v/ B7 \' y* wto get-global-proportion% h5 Q0 C6 @ p" P
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 @, m9 M8 p2 ]& q[set global-proportion 0]
9 z0 N! H: m; ?[let i 05 Z/ F. p7 f; b* a
let sum-money 0
4 p+ U" n! B/ ~7 {7 Ewhile[ i < people]* {; I: j9 v$ h- g/ i- y9 ]
[
/ e& L. H7 S0 r5 S6 [if( length (item i
& v* D; G# k( z3 k; `! x9 F( @0 ^[trade-record-all] of customer) > 3 )9 F8 P2 x5 |5 d3 A
[
4 I9 |0 z% {/ s ^+ rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 v- {3 A: T7 t8 g! T. S
]
% R7 P) B: t* z; n; p0 N9 M. S], }6 w. s6 s8 y$ {7 G6 F7 x
let j 0
1 N% j7 o j, I, _& A: L5 ylet note 0: B4 u( A0 s7 j4 z" {% S: K
while[ j < people]
6 D" f- X B7 h0 }% l[' M* a' U6 ]/ b3 j" w# q1 q
if( length (item i
5 b' l5 l9 u2 e5 _[trade-record-all] of customer) > 3 )8 F; `& p0 J- g( S# N- S
[( A9 D1 j1 w- c* E- e- h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: r, m. t7 t3 M5 z9 w4 G[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)], P$ ]5 q" s# F5 W/ z1 H- j, v4 |: ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 M, ?0 J% G8 ^( s, F, F" W]2 F$ |/ n) b, t
]+ i- A% w8 w8 g$ \* _2 q+ w- Q
set global-proportion note, w! [+ d* a4 r& U0 m ^; z
]% {6 \) t4 J7 O: \2 q" q
end
4 w1 b$ Q- e2 j& N/ j% G2 ^/ H1 j* @0 T9 u' l- _
to do-trade1 B7 K2 s/ n; p2 `% I9 B i p3 z
;;这个过程实际上是给双方作出评价的过程+ S: ~4 K9 y5 p% F
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* q6 M& G. N# i) V* Q. c& w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价0 f) e- ?# n7 o
set trade-record-current lput(timer) trade-record-current
# K1 `9 s+ A; P* y" N4 u/ T;;评价时间
/ p4 e& V9 w, r+ [' }ask myself [+ Z3 J# l" P" w
update-local-reputation
9 c5 \1 w- b0 G# l/ T" qset trade-record-current lput([local-reputation] of myself) trade-record-current- x/ p! ?$ W0 P! s; E
]
, P" d* S3 F8 N" T7 lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 h2 H2 P) L0 G. @* E
;;将此次交易的记录加入到trade-record-one中: w9 R$ Y, ]1 `- h: Q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ M8 P6 f) w% }
let note (item 2 trade-record-current )
, j3 v4 c; _ F- t. M. l8 q7 \set trade-record-current
' f+ f) [% U0 ^; V% i( G(replace-item 2 trade-record-current (item 3 trade-record-current))
2 i; C6 k1 Z- o0 e/ F. Gset trade-record-current
- Q9 s/ s3 q6 o+ C+ d(replace-item 3 trade-record-current note)2 A2 V W9 e, K- [" E- O# F2 I
% l1 m4 @% i# w5 z& d. @/ Q- m& M+ Z$ A0 C- O4 [
ask customer [
3 l; \: X! p7 W' wupdate-local-reputation
' e6 p3 o" l) ?/ Yset trade-record-current
# b8 ?' W2 T+ z& _7 l) @" T' u(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' j4 s: p1 D2 d# K
]! @( m2 T" \/ {, _0 F) H" ^
% |; c, A4 T: } c' _
% ]8 q1 v' {7 g( i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 c7 D4 j- o1 _7 ~) f
. i9 g. \- y1 M$ Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 B$ ^! [# N3 j- D2 Y8 Y;;将此次交易的记录加入到customer的trade-record-all中/ I# x+ u; H9 f/ X
end; m4 P% ^ w! V: @# A, c
) A+ v; ?" j; l2 b3 h
to update-local-reputation% D& ?; S# c- ^- R5 S' x/ O
set [trade-record-one-len] of myself length [trade-record-one] of myself* h; v" ^7 o' e; n' V+ R
/ b) D( U7 i5 _1 C; r! U: B: }0 p8 u# ?/ e1 g' z0 [
;;if [trade-record-one-len] of myself > 3 2 f; d& `- x: p- _$ C$ Z
update-neighbor-total- }7 @4 c& g* |+ Y+ U
;;更新邻居节点的数目,在此进行
/ o. I6 S+ }9 m+ X% flet i 3
" A- O" t6 O m. z* Mlet sum-time 06 v$ G4 J+ i) J) L; D/ x
while[i < [trade-record-one-len] of myself]6 p2 X6 r! G' L6 C" z8 G7 c4 \
[
8 M' H0 p9 A. l- j& e+ C* Qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 Z" G8 g. v' B/ R
set i, F9 _: H7 p0 j$ I9 M4 D& A
( i + 1)
; Q9 Y5 ?. K' ?' g( V! d: o. G]
, r8 \! @) O* _let j 36 L% h0 H8 K2 E
let sum-money 0/ R# r+ M9 o% i7 h4 e3 f
while[j < [trade-record-one-len] of myself]* m" f) m% i4 R
[4 {7 j% n: V0 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)0 ?7 o4 w- D3 ]5 v% D
set j
3 c% n2 h" b7 ^- Y/ l" E; _3 W( j + 1)0 \% Z/ @7 U8 l+ k5 w9 f
]% M6 R5 ^5 p: W
let k 3. Z6 t) s7 w; y1 l
let power 01 _ x5 e% v% a |1 b
let local 0; d2 o2 m; s' q0 X' B1 v
while [k <[trade-record-one-len] of myself]0 Y+ V$ \9 O; g# ]7 M
[) ^" k# I1 o( J6 x- Z+ a: r- `
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)
( |' w$ [& `+ R" L6 q+ _set k (k + 1)* {; ^9 q1 j7 t# Z8 q: Q/ T" \ Y
]- ?' n( q, P- p* v
set [local-reputation] of myself (local)
% Q; ?) R9 K5 o0 uend
& H* {0 M! Z4 m, Y" l2 B9 h" r( K' E' a
to update-neighbor-total
3 U6 \0 k$ U, O3 C C. _" g* l5 h' Y8 D: Z) a0 ^$ t& z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) j; C7 |3 \( Z1 y3 D; ?$ O- f' a( h
% q6 k+ r* l: m0 ]) g! J
% o9 _8 G" L6 g1 @5 g. o4 a+ h2 ~end- ? y8 i5 H5 H3 [* [- k1 x
6 ^8 L9 A3 {; a7 M5 {' w. _to update-credibility-ijl
& k( \* E. i, \8 o. o/ F2 R6 Q
;;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。6 u! p3 l4 c$ j6 r' z% E0 ?7 b) G! u
let l 0
! p$ W8 U& y6 G7 e# twhile[ l < people ]
, ^( V3 o, c" `8 M2 D( {;;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
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4 S: L% J3 ~- a- c1 J9 b% olet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 Y1 |* L6 k% U4 e, j: L8 Aif (trade-record-one-j-l-len > 3)
2 k4 h. u; @0 ~8 A0 [6 H* S$ K$ `! s[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( Z% E9 N# H, c: T7 e7 k
let i 3% _% d. I& u; G: Q$ @5 S' u) |4 F
let sum-time 0
l/ H7 L' R* V9 e0 k+ [while[i < trade-record-one-len]
$ {' t8 Y7 {% b2 Q) \% @[0 x; K0 K; u# g ^* g4 v" r
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 N6 H k4 T3 L7 s* ~" L
set i
]" [/ q( H, h. W( i + 1)
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( K; \0 W( b1 e0 ?, v) j$ Q" ]6 Zlet credibility-i-j-l 0
5 q6 |/ n+ t9 p7 b;;i评价(j对jl的评价)2 @5 b$ x+ U. Z% x3 [' O" g% p! c
let j 36 G% X# O& f( e6 K1 p/ j
let k 4
( j4 {! `: H' U' T' fwhile[j < trade-record-one-len]
+ K; T0 V& R& g9 \7 K[
. ?# ]* c4 n/ H) O& R! d$ vwhile [((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 \3 T3 r/ N9 C0 X; [
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)5 |* A% A/ {6 Y) _' ]
set j
0 C% R `; A, q" t1 Z( j + 1)/ E5 J# z' e: L& J
]% z8 b! @- c: I2 D" h6 `; P% i
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 ))3 n, s9 g* ?6 A/ d% z
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ T& M$ l# m' i8 ?$ ~;;及时更新i对l的评价质量的评价
, U* l; {$ J3 q7 h1 r& w) Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 { ]% U% o6 |0 h1 G: M
set l (l + 1)
r, ~: P% X1 l+ J8 m]
$ R( |7 B* b8 ^8 }1 m- D9 `end
5 b# J. |1 k9 r& `+ ^+ ]
" }$ S+ k' x9 F* K$ `to update-credibility-list
( ]. z: \$ ^7 {1 v) D$ rlet i 0
" O- L4 j+ p) u% w0 @% L8 q+ [4 w1 xwhile[i < people] p0 d. b1 m7 p( l" K$ |, p
[
% E! E" C! f3 @- R/ V: qlet j 0% e( ~' ~& P1 f
let note 00 n1 A( O# K$ H1 R/ h# |+ ?
let k 0
" l( h) B$ L. p# T& q) e;;计作出过评价的邻居节点的数目
0 j" ~) g! i& y7 Y3 Ewhile[j < people]5 Z! @3 b8 M! _6 {4 _& U9 z4 v; F5 C
[& S2 s" R! t1 U
if (item j( [credibility] of turtle (i + 1)) != -1): _' R! h @% x, a& t
;;判断是否给本turtle的评价质量做出过评价的节点1 d" a8 q5 W* v4 w Q: `
[set note (note + item j ([credibility]of turtle (i + 1)))
* W' s3 h9 ~1 s. t/ f/ V) G2 Y;;*(exp (-(people - 2)))/(people - 2))]
; M* {, C; e6 X5 Yset k (k + 1)
+ t1 {& m+ i8 z+ h0 y$ P! h]
# A! Q5 v' N; [& P5 Kset j (j + 1)5 ]& O7 W7 l5 a" J9 m
]
* ]( h8 t% |6 N7 jset note (note *(exp (- (1 / k)))/ k) m$ c' q* s2 w/ m0 T# g0 r
set credibility-list (replace-item i credibility-list note)' P2 O- g/ p( I& o7 a N9 i8 D
set i (i + 1), F* n4 ~5 {* ^! [
]
! A9 Z5 Y/ h2 d" O' n* W( i1 s3 T' Lend7 d G* I5 x, v# e" h" K
- W% N$ }5 @, x) B2 s# ?2 P/ ^to update-global-reputation-list9 o! H7 D! s" l9 B @
let j 0
) O. Q: O4 j7 H& bwhile[j < people]
: i4 _) N7 ?3 U+ S8 R2 s m/ }[
0 x/ f& @; E# G9 zlet new 0. [7 P* j* \# R6 D Q' Z: _" I
;;暂存新的一个全局声誉
! |* e' p* ]+ `; q6 m1 Q- b% Glet i 0
) E% ^ X7 B9 c0 }; flet sum-money 04 e" c& ^( O5 \
let credibility-money 0 Q! M9 x/ J0 |
while [i < people] ?% j) j7 l8 ~& b; o5 N3 h
[
. L6 s# {* p! M' `/ Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 m" c& @ b# O' E9 r2 n* ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ m7 e- S" @. j! B# t* j# D
set i (i + 1)3 I' @! C" D. E6 ^' B1 @
]) ?7 v/ u& t) _% l1 \3 y
let k 0
1 N( K% G- w3 [- V$ T3 ?0 Jlet new1 0
1 Y6 t6 a% B; M7 m" Q9 T( j3 Q4 [8 M+ Awhile [k < people]
$ v' S; V- ]' y. t3 K) F0 o$ C[
5 e7 G9 }5 U6 k+ k1 lset 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)
3 i5 F( O$ U3 \: gset k (k + 1)
5 {; c+ v# S' q; `! O2 R- C& b' K% q]2 ~2 ~! k" T" n/ f* \
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : \: a# R; V3 r
set global-reputation-list (replace-item j global-reputation-list new)9 [! B b/ z# P
set j (j + 1)
0 c) }5 p- J/ b) C9 m7 r6 z]9 j# p. I5 l3 z) D( w
end
% W3 V; A. a; n* S2 S' ` j
/ {: m2 k* X' n5 Z# i0 ~' O0 A8 k$ C5 c2 R$ ]6 X
" ^+ H3 }0 G/ _to get-color
0 y, ?3 e5 |! A& `2 o, @
1 p7 S* `/ j7 [1 x4 `& B% Qset color blue
3 M9 F+ U& e; z; I' send; \3 \ O `! N. F! {
# U) L' A+ Z$ R* y7 Ito poll-class' K4 X$ t5 A6 N" h1 `4 ~8 X& A
end
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9 F) V3 Q* f# F4 |5 i/ lto setup-plot1
9 x1 u8 J& `+ n
/ V# q) U/ O3 \/ {set-current-plot "Trends-of-Local-reputation"- j! j: N2 Z) _; ^& x
" P! W' r& f0 U' i) ]set-plot-x-range 0 xmax" s* ?: l2 m2 }7 V3 h3 l8 @
/ z5 i# Z1 m, X3 W5 ^set-plot-y-range 0.0 ymax [8 I; l+ a! A) O
end
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to setup-plot2, I2 o: k p8 @) l- H3 M
% h, _1 U" ]+ F: Y% P, c* L+ i
set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax, f: p' u) z S# U6 G# H
8 V. i% l! `" u; F* vset-plot-y-range 0.0 ymax e8 o n; H ?: @ y# W
end
' a+ y. q, O# A
8 u$ q% D" Q' P' M! oto setup-plot3+ W2 o7 m1 t( C7 |4 Z7 F
' }8 K9 {( u: A% y1 y% K, f0 V7 |
set-current-plot "Trends-of-credibility". F1 J6 x' I6 E9 U5 w# _2 @2 s
! ?$ E& W' h+ T$ K4 m
set-plot-x-range 0 xmax
( Y v3 B; }4 x( d W1 N( y
0 U0 T: w6 c, t! h# t: j; I& nset-plot-y-range 0.0 ymax
! r7 R( p2 J8 \, S: C3 r3 k; I: xend$ [: v7 H& }1 G/ C9 Q g
# @+ Q" }" K4 Pto do-plots
0 h3 ]9 o3 r; mset-current-plot "Trends-of-Local-reputation"8 a) }$ W" ^4 [( B+ l( p7 Y
set-current-plot-pen "Honest service": O5 k v j5 ~7 l* p; \
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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