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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
1 p% Q& L% }0 i$ D7 Gglobals[
9 o y2 u- ^1 r Jxmax
$ F" i" w8 g: ?7 y& Xymax
) |0 b- Q9 Z! t# J. X; Qglobal-reputation-list
6 m) `: P6 b: v1 N: [
0 U' B$ O5 H3 ^% _1 W% E/ F;;每一个turtle的全局声誉都存在此LIST中0 L5 Z( _4 q' K8 a0 u
credibility-list" v: U2 q5 H, O {% d7 o8 E2 L
;;每一个turtle的评价可信度
2 w8 R& u4 L5 E/ |honest-service
/ e& H; d8 k% E: runhonest-service
/ l: l2 V3 Q# toscillation% W L+ a. V. J1 j
rand-dynamic
0 j" I) F3 I+ C' M8 _' b; k]- q& M d3 x- e) M$ e& }
+ s0 ?7 k6 |( _ Z+ U6 }
turtles-own[
& f4 \6 h. K$ Y. o0 f: Rtrade-record-all' j+ C" |& ?% {1 m7 r
;;a list of lists,由trade-record-one组成
9 D- j6 [+ @! {; qtrade-record-one( j! v! B& t% |0 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 n1 u; X2 `% k3 q H
" I& {, b( g7 r
;;[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]]# Z8 H% f" S4 S8 Q+ p5 I: ?
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]# g1 z# m# |, D X ?
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! L; Z, p3 `3 b7 [9 _( Z8 X2 H
neighbor-total& [# N4 `5 ?& N* k r
;;记录该turtle的邻居节点的数目6 ?% `7 n7 U1 h- q! x4 L
trade-time9 b- Z8 h, S, l/ L/ `+ x
;;当前发生交易的turtle的交易时间6 D9 N1 C3 {& Q1 y' P
appraise-give
, P! D) J7 u" l;;当前发生交易时给出的评价9 e; j D) T' _
appraise-receive" T: j$ e7 u8 l7 o" p8 i4 ^( L2 W- B
;;当前发生交易时收到的评价6 V( ^3 i+ A5 V% o1 i
appraise-time
/ T$ l7 Z2 r5 m6 C+ @# x5 D;;当前发生交易时的评价时间
8 j/ u; m' y8 p* g% [local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 \& c/ J& j" @8 |6 V9 v9 d2 s5 Ptrade-times-total
1 |+ P' c" b, y' _;;与当前turtle的交易总次数 W, o" i# S' K
trade-money-total3 ]4 |& a/ r; d1 `' [9 e! C F
;;与当前turtle的交易总金额$ E) V$ A1 c. l4 y" r2 j4 C. {
local-reputation
: Q/ Q1 ^$ I3 b9 q, O* B# Eglobal-reputation
( L+ z v% H' k: Y7 e x) n8 p( x# a8 |credibility
) E* u0 _) h8 I' o( x% M; B;;评价可信度,每次交易后都需要更新8 E# z1 k6 O3 X1 J
credibility-all
1 ~& K0 @- K2 X" j3 D;;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. f) L3 r' L9 L; }4 ^
3 w4 g0 Q, F& t" W$ O! N, E
;;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' n# s3 J3 s5 s. \' f3 }. X1 q) H
credibility-one
! u( l- G* h: @7 H9 e) G1 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 i8 ^) r) L6 h, n# \& Y' W
global-proportion4 T1 [! y7 P2 R5 F3 {& M/ z
customer
: W6 Z( z* b- p2 L1 wcustomer-no
8 F- p6 z, X# ?! d X, \3 Ztrust-ok
$ A+ m' p9 G/ ytrade-record-one-len;;trade-record-one的长度: @1 b% C9 E$ T& J7 h* ^4 b2 _8 C
]; ?9 ?* j) L1 m. i! {, b
% X# o5 v* N; A/ Q$ j0 a;;setup procedure: E6 T. j5 `8 r) n% \$ k
$ {4 t. \1 {, x2 ]2 rto setup
" S: F7 C% p" N5 B+ b( D
i( o+ u" b/ d7 p* b) Q5 @ca
% R2 g% j, v+ o# u: O" y J: B% a
2 b0 T: x3 d- Vinitialize-settings3 v5 G7 \6 n0 m/ q
( {+ C" U p* L- s9 Jcrt people [setup-turtles]6 K4 n8 y( A" S# y# Z) O
F6 e$ n; R3 L! H7 U) b" i, q# Y' F
reset-timer
; }' b' |9 L/ p8 a/ M/ |
0 h7 p S o w; ?3 E/ ^& Zpoll-class
4 q+ G3 w [! B0 q- g
' ]9 B; n- T$ m) ~5 Ssetup-plots* E9 w7 y0 P2 U& ]9 X
0 L4 \) E- t! ]5 b( L
do-plots
$ s. Z7 E5 q8 C& K+ P% rend
; T! c4 L1 |# }
2 ?* ^) Y( M; k. @. g: b; I i0 Dto initialize-settings' d! _0 B0 r. m* Q- C! [) p2 e
c; O6 s+ f* y# m) m! fset global-reputation-list []0 Z2 a: n% }) `+ |+ i3 c
, B7 T9 V4 p2 ?. m3 |' C3 n: }% B( u
set credibility-list n-values people [0.5]
& G6 q! E# o; ]. w/ C- \# ^: J2 T+ f/ P" z2 d
set honest-service 0& O8 w5 m' q1 T J* n' g! s
2 E0 I1 P5 u5 x: S' \
set unhonest-service 06 f1 g5 ?1 |" [1 x- B
2 ]% G C0 q. R, ~0 R
set oscillation 0) V4 L1 g6 W6 R
! J* I/ x5 S6 V9 y* yset rand-dynamic 0* `" ~6 D7 ~- ~% B5 `, I
end
% w4 n3 F3 x; L; k7 u
* z/ z+ w; T$ G: N( S: Uto setup-turtles
. g* |! N4 V+ {, o' ?4 dset shape "person"4 s' R1 i9 `+ y3 ]5 Q! [
setxy random-xcor random-ycor
' f/ u" I7 R; J1 Gset trade-record-one []" ?9 U7 O: a! }$ D
# ?. T5 L4 A5 q* ~5 [set trade-record-all n-values people [(list (? + 1) 0 0)]
" M+ S9 B1 O# V9 |* N6 ^$ ^% n5 g0 I3 _7 q. H+ ^# L
set trade-record-current []
! V2 \8 ^6 J* Vset credibility-receive []2 X. ]2 x6 k1 b& B
set local-reputation 0.5
& S8 i3 X5 @5 x$ `* Y5 jset neighbor-total 0" u8 D/ Y9 w2 T. @' {: \. f+ d
set trade-times-total 0- Q7 B0 x) z9 T1 K) J0 x2 I
set trade-money-total 0
9 k! \( V$ N& F @$ Nset customer nobody
" w, c6 D+ F5 G2 Mset credibility-all n-values people [creat-credibility]( @" M' G3 i4 C% ~" J7 K/ u
set credibility n-values people [-1]
2 U) G6 ~% \- N5 gget-color; K$ U! [2 S2 K& D/ f2 R
* D( C% w: D4 R9 O
end4 F/ m; {, O5 A5 @ F7 [- R
/ x7 t& h2 F0 |$ C' t+ P
to-report creat-credibility
6 H. s" }& k0 Q8 d" v+ @+ E3 ureport n-values people [0.5]
- Y7 m1 |/ }7 _end E. W3 E5 Q, O2 r
& a7 U2 Y* c2 P. s& _
to setup-plots$ g+ S) o& A6 E( U5 n4 o
4 o' v* s$ l Z! Z3 l% d
set xmax 309 H7 K9 u2 O+ @2 ^4 W
3 l* y0 ^# M; A8 Gset ymax 1.0# Z4 I) j; I8 Q
# U7 ?8 {$ f$ X8 B$ O' I7 c' C" Jclear-all-plots
+ O1 C+ F) h' H2 d& v' a" `
i2 W x2 S' @ q3 tsetup-plot1& n. F" P9 H: j% y* @
7 E2 C& p! G5 zsetup-plot28 L+ H- f: _1 a8 X! }/ n
* x- a' z. X7 `# i6 @6 f1 [
setup-plot3) L& g" e- ^/ K* u
end
( s' e7 v3 b& q* a* U1 O) |; c
; u Q, k2 k l7 m3 A# D3 u( F/ d& o;;run time procedures
5 q+ Q. z" a4 D5 A) U7 c. T
9 N6 o! `; f9 l# a2 {to go
7 m+ U* S' S l- Z# j# l$ H! X" }& L: i" q2 _3 X8 w
ask turtles [do-business] W, `) w3 i) R
end* s$ F- F# s5 E M
6 W$ v% I% L% D3 d
to do-business
: V: b5 l) l0 B9 S# }. T! @ B/ G; A) A+ G: g( `8 R
6 E" g: R8 I% c7 s
rt random 360
% _8 j+ F$ M( z* b
# s& f$ }2 J6 I$ b6 S4 E2 Ofd 1
2 ~* v' }0 b$ ]* v+ W* y( S, o$ c$ x
ifelse(other turtles-here != nobody)[
$ c& U1 [% o' Q C) B# F1 O7 o0 t' }2 w5 j( V* v \
set customer one-of other turtles-here+ W6 E, y8 S9 [# ~# D
. w8 \3 X# d. y: W! u% b% A
;; set [customer] of customer myself
! h& Z% r" e* U( d
{3 f$ v. U% w5 c9 z P! F! bset [trade-record-one] of self item (([who] of customer) - 1)
6 c- X B3 k+ d' ]+ X R W: W[trade-record-all]of self5 V+ @; v v7 Q/ h- U- T2 H
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ _9 i$ \2 V1 @+ p" }( c9 e. Q8 o" a" v" e
set [trade-record-one] of customer item (([who] of self) - 1)
4 c8 [; a0 h9 r: J2 f) c[trade-record-all]of customer
. N/ ~0 |, ]- m8 O
: H: ?$ Q% Z# V& Xset [trade-record-one-len] of self length [trade-record-one] of self" I) R' q, Y- a+ r! {# g+ P! T
- n4 P0 a! c c$ f& k) U5 g
set trade-record-current( list (timer) (random money-upper-limit))3 p) G+ Y9 G. j3 M
; w4 L: [( ^. ~# Y' Gask self [do-trust]
0 l4 j; G. I' M8 a. d2 ]1 ~. W# f;;先求i对j的信任度) x) L: F+ X- i9 e7 _$ N. R! c
( a8 S [5 g# o" z- @if ([trust-ok] of self)
& d- X1 A& t) l2 Y;;根据i对j的信任度来决定是否与j进行交易[( N+ d' c4 y6 m: C
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
4 A3 d5 \' B+ Y9 s# ~# @
+ u" p# c0 J3 l, j; @) m$ u- A7 a[
/ U5 a/ g) `+ Q, k2 g# O. J. K9 U1 ^0 R6 ~1 v$ S/ ?
do-trade
0 T: t3 H% o% d3 o8 Y& V, n6 r7 q$ `
update-credibility-ijl; X0 f# `1 [& E# S" p
. P( C, b5 F" t7 cupdate-credibility-list" g r' K6 n( ]& t& L6 k
! D& j+ Z4 n( t/ T) \2 D* ]+ h. }2 |8 H1 V
update-global-reputation-list3 Y7 F; A& ?# A0 y: A: B8 G
; L/ {; d0 N: b& ]poll-class* U5 b- m( O8 b" P. @; C7 O
9 l8 d* Y" p/ P2 xget-color! }( b9 I9 |4 D/ Q
: `) B9 B& g" f! N% }]]; [& F4 R" _9 ?7 a
" V; C& y% L7 t6 x;;如果所得的信任度满足条件,则进行交易7 E6 i" M/ g( `# _" e
/ c$ a& O- o( o# {! M[) V3 L3 t7 J' G, k& i
7 w9 i' }: f8 z4 X" i( L
rt random 360
/ W- E' A4 x, y$ U n
6 l k {9 Y0 E. k$ Pfd 1* u( a* {" J8 v! f( I* d' n9 h
% A* m3 S2 D# C0 @& Y% x) D/ j]
3 z3 A% g9 w0 C9 S! ^. U/ N. P( o- r- @6 p W. F
end
: ?0 A' v, ~4 p
6 Y) _2 S/ A! Y$ ~1 Oto do-trust / R; j9 Z+ [9 m6 j& |
set trust-ok False
2 F4 G- `7 x. k4 w7 ?4 A" n: |, y; f* T. t ?
) T8 `7 Y- J1 ^( v6 b) rlet max-trade-times 0' I3 o4 ]; s6 n
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 S, Q7 o9 G; l
let max-trade-money 03 P5 o4 U8 I- \2 q' g& p6 T$ g
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 f: |8 x3 ?) t* V; l+ M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) {5 t7 ^: Q( n3 j) y, Y
+ X+ L3 {0 }" F7 f8 J, r$ T1 S0 k7 H* C. f0 U; M3 B
get-global-proportion1 u9 `0 M4 A, M
let trust-value: i1 i0 H# B2 O
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)! G6 a6 U2 g4 s" C1 U
if(trust-value > trade-trust-value). \: [% S" h/ y! j" X/ I
[set trust-ok true]
( i2 r0 |! }% |end
) C+ J3 ?9 B" O a, e8 _, j! C) [! n% s
to get-global-proportion
) V F7 R$ F/ \2 T6 o0 Iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- b7 j6 } m$ S
[set global-proportion 0]2 v' d9 d; }2 ]' N0 o
[let i 0
$ G& f2 }3 w; @9 G4 p; s' dlet sum-money 0
5 d: x5 G8 s6 } b" K0 @while[ i < people]
8 W s+ Y: ?8 o( ~% W[) k2 g- {: k# [) b" R8 `
if( length (item i4 v! B* d4 G$ X3 ]; Z1 p7 _0 m% v
[trade-record-all] of customer) > 3 ): v5 y7 J9 Z$ a2 v& y. R
[
, T' o/ }. h4 R! y. Lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))" ^, e) h% ]! B7 n L2 L
]6 f9 U4 t' W- w; V8 R
]5 T7 K; q1 O) W* i, h- S' i6 Q
let j 0
" U' V# e1 ]" U8 h% G/ |. {let note 0
+ \' O( _# Q! k4 y+ \- Y7 Cwhile[ j < people]% H2 }( y+ K& l. A
[
8 e9 F! D' t' B2 fif( length (item i
, v* D' z+ X4 } x[trade-record-all] of customer) > 3 ). p/ v: ^' g+ h' m( H9 r4 ^
[5 G; O3 I9 S/ e2 z+ G
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) N5 G' ]2 b/ [2 }' I5 [; \
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 Y3 Y u" a8 }/ N1 F1 Q& T. r. k/ a[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], C$ x+ U* d1 ` B/ \" K
]
+ I. d% \2 W- g]8 ~3 B6 p5 w' W% z+ s; N) P) g
set global-proportion note
4 Z7 q4 z) k( y5 O* {( @]
3 g( \" A% V2 e! }end
* M0 z5 c: ^8 Z+ f1 S5 G- Z# Q" b4 u4 G7 w$ [& h( H" j
to do-trade: f3 Q! C* I' ~0 R, E
;;这个过程实际上是给双方作出评价的过程
* q( b4 Q' \) G1 E4 D. @set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 ]/ {9 h! F6 j4 Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 c M5 |' {4 S7 b% `3 }set trade-record-current lput(timer) trade-record-current B. A% j0 R4 x9 J1 ?
;;评价时间# h3 m0 Q# a2 X7 H! i3 K' } X
ask myself [
, g+ A U: ^- t& R1 D/ yupdate-local-reputation, ]/ z: L. ^+ A: t
set trade-record-current lput([local-reputation] of myself) trade-record-current
) @+ O" t2 f. l( L]4 u/ {; r1 ~! ?$ p/ | y p# l; h
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 R& Q1 S6 s1 v0 d0 T
;;将此次交易的记录加入到trade-record-one中
- ]# B0 i! C5 B, |set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)7 u1 {# ?3 W) q# L9 T- ]0 ?% P5 u
let note (item 2 trade-record-current ): ~ P. y, ^9 c9 ?2 f7 p5 i8 f
set trade-record-current
: g: c3 F3 h7 t( n! G) ]: A# z, P(replace-item 2 trade-record-current (item 3 trade-record-current))# r0 l- Q8 E/ C, H% Q$ r- g0 `1 F
set trade-record-current1 C/ ~& N. Y6 |, j
(replace-item 3 trade-record-current note)2 I7 K1 F- E( K) Q
* L8 V/ [. A( r/ i6 H; P
1 }$ s+ s l- h4 }5 d2 u5 jask customer [
) ]& V& ]% ?5 U7 q5 qupdate-local-reputation% @9 E3 j3 {: K' ?* b, c
set trade-record-current
1 k, G* `4 j/ V1 Q2 {(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) , ?1 v3 x/ |9 A: L1 ?, C! }
]8 H5 r: ]. Q X9 f( y, o$ `
' H0 a. G) r2 @ x2 b) s/ h! ^4 M) {4 A" C" N
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* W1 H4 r1 [' L* A
3 p7 o" L) }1 }8 ?2 T, p" Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ ?$ v( z% h9 J+ Q) M# k+ {
;;将此次交易的记录加入到customer的trade-record-all中% F9 l& g- `3 |0 ?: H
end
! M {6 J& M& j* K. [5 A
- \- i. j$ T6 C* ~" x7 c2 bto update-local-reputation
* G* F) ]. J! M; J" r# ^" hset [trade-record-one-len] of myself length [trade-record-one] of myself
6 \# J" q d' z0 ]. y5 a8 l4 d2 \7 A+ k6 F
1 C2 y& @. W& G1 z! `
;;if [trade-record-one-len] of myself > 3
6 |9 m4 J# E5 p/ gupdate-neighbor-total. o9 o# f8 W' \: ?8 T7 V
;;更新邻居节点的数目,在此进行
: g2 T( B' |5 O2 ylet i 3% P4 \, U4 \. o; k! Y
let sum-time 0! Z5 Y2 @" P* \ [% K0 `3 g
while[i < [trade-record-one-len] of myself]& c# \+ V/ e. u# S
[9 o4 H4 k: T5 x3 ~6 y9 D! T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
f5 y0 ~4 y3 z ~) D0 t: Zset i
1 Z" ?, a$ u) E: `* c" V( i + 1)" K) u v8 T* D8 f$ `8 e8 i& a0 ~
]2 d0 @! ^& C9 h6 v, y
let j 3/ R8 {; U, r h% D) A: r: k9 o
let sum-money 0
- ^9 T- p1 |. }! Nwhile[j < [trade-record-one-len] of myself]1 }, x' m- m# ^
[
& G5 v2 L" e3 v; ~3 M2 cset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ L2 X" N2 G( }( b" Y0 U B) _; ?set j9 x! f! I5 L( d6 E/ C7 r, K8 X
( j + 1)
& V$ c% b) K+ }7 p0 O]
4 Q+ R/ g/ T0 slet k 3
* Q( S f% ~" f* S2 z/ [) j- Clet power 0
$ A7 J0 ^) r6 p1 p4 xlet local 0
- }) g1 U5 V* P) b Q. ]while [k <[trade-record-one-len] of myself]
1 H6 }0 v. x2 x' r& I* ^5 V[
7 {5 @8 l( Q" ^' o! t/ Tset 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)
9 d( B0 {! ?( oset k (k + 1)
; d: ?8 r. w. ~( U], n3 `2 W1 f; u2 [/ l
set [local-reputation] of myself (local)0 I8 G3 P* J! r6 h1 [
end7 I1 l! _" O6 g' a0 h& T s' g' u
7 b1 F7 T) D- P% u0 Z6 c) L) _$ N
to update-neighbor-total ~8 m0 f0 F8 u( a( x: y
2 l* f) W/ H- k4 R
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! ?% D3 B' H6 A. b' l
) U L( F1 Y$ f6 `2 {. v7 o3 M) h s2 V+ y5 ]% }
end
6 A! `5 O4 x. r2 C$ f) W! L; B7 G( W( b
to update-credibility-ijl
# k4 l9 i0 X" n& j0 W/ m: p0 U& t6 w' X
;;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。
& h: A) [1 r4 ?! {! H0 Flet l 0. ~0 U) b- h: K7 [( }! X" M x E
while[ l < people ]
& k6 j) f4 n( 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
/ Z# C; Y+ Y- {, `- H) K# t( I$ n! s[9 _. G; D. h0 l8 f l
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); U7 K* V2 }% z( R! J
if (trade-record-one-j-l-len > 3)' N: [$ A3 K3 \6 I3 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
7 C+ P# z+ t# `) j7 Jlet i 3
' W/ U& i. e5 R( D/ M# b5 K! qlet sum-time 0
8 Q0 p }2 ^! Nwhile[i < trade-record-one-len]
$ J$ c2 {! D" [7 m[7 p) w2 Q) ]2 Y4 j! Q2 h, {1 z; e
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 P* f4 l2 g) t N+ _) z+ u9 M
set i8 w% d& v4 A V
( i + 1)0 Z- o7 \8 u& K4 I
]( v) X" X5 l' I. i" Z# w) Z
let credibility-i-j-l 0
* m& J; e2 v8 t( Q;;i评价(j对jl的评价)
# Z1 H+ w8 s) Z+ C" jlet j 3# D$ I, x4 K+ q
let k 46 R6 i$ \" c* K8 }# f, J
while[j < trade-record-one-len]& |$ v+ E4 I: `1 R
[- U# r6 C' U# ~* _1 ^8 ~+ Q
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+ L6 f7 \5 I, E0 U
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)
9 l7 S, P# H9 ?! `3 K6 gset j1 t9 \: C( d! C9 @) z0 G ?4 O+ ~
( j + 1)
3 `: [' T) w! H2 c]( C% a8 b) F! K8 D
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 ))
, _( m3 u$ }! T4 X' o4 W
8 ~7 |$ J$ @5 k- L( r) K8 W; g, r
0 c T4 ^9 q2 _- f7 j) \% _# Alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ Z" S2 ]' Q. r L;;及时更新i对l的评价质量的评价
2 C( H0 Q' B' k: X" pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( l7 `9 {4 s H( @. v# C
set l (l + 1)2 ^, J7 K. R) N( F
]
- x& w! ]; g4 n; b; a8 yend5 |' P; f+ d: r# K
) ]. Y0 }' m3 [+ @% y4 F) Y
to update-credibility-list; h. t5 X, { D/ _* }. }: y; g) C
let i 0
5 r7 K5 ^. o5 z( m. v7 E$ ]while[i < people]
" q3 T5 w3 P9 L! \[- _6 W: n8 F; M# b) y
let j 0
# _) n/ }5 u% j( z* `let note 0
' b' i! t: g4 F% Q* _let k 0
5 m8 } O! ^4 d! x* Y; K0 l7 @;;计作出过评价的邻居节点的数目
" ^2 V5 G: ~) twhile[j < people]
- S: L+ N* {, H[
( j& U$ l7 |- L! ?if (item j( [credibility] of turtle (i + 1)) != -1)
( E# }) B) D0 q6 ?2 t;;判断是否给本turtle的评价质量做出过评价的节点
' ~8 o8 Q, T. I) s3 Q[set note (note + item j ([credibility]of turtle (i + 1)))
( u' A* M: L: n- N;;*(exp (-(people - 2)))/(people - 2))]: t* j+ o: Z w8 F( K. i) j) y# g
set k (k + 1)
, ]6 b$ `8 `! N* N* A9 @$ |5 T# A]5 S' E, d6 ?* q9 T, I/ y
set j (j + 1)
+ r" ~) f. C- l]
! n/ D* W7 {+ p) xset note (note *(exp (- (1 / k)))/ k)
( y5 L) {4 Y L7 `/ j! R/ h* w/ l& |% e6 vset credibility-list (replace-item i credibility-list note)
. e% ^9 F/ E- zset i (i + 1); l$ P( H8 H5 l% j" _+ ^
]* @ x [* q7 J4 ]6 B7 z* m3 s
end* i" S+ J0 n, _& H' d z
5 R0 s: x* B. C8 v8 R4 ]; Tto update-global-reputation-list3 n+ |# [7 n/ N$ Z, U
let j 0% E; E( e6 j) n0 w" Y. i
while[j < people]
7 o1 m( O# j, S2 v1 f[0 O) ]# O7 _; M9 f+ J+ [# K
let new 0- P" v% Q8 _' u
;;暂存新的一个全局声誉
5 X' o( D' @3 a1 D# Xlet i 06 d: W5 ~4 u0 ?* w6 { m7 N' _
let sum-money 0
8 _, n7 I* y; ~* q2 S' A3 Ulet credibility-money 0
$ V4 T, J9 i9 C- j' Y/ G; [* ]while [i < people]
& J L, r7 A [" m/ Z$ j+ _1 k j[: ]+ h/ j9 P2 W5 B. b$ {0 L
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 D9 k+ Q1 j/ B$ K' Tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# d) V, Z/ o' G, Q
set i (i + 1)
0 w7 V0 V1 p1 M4 B: F' ^]5 b; e/ T- R I1 {
let k 0
8 m- E% O# Q, K# g, Q+ d+ ?let new1 0
) F0 |$ }5 y3 W; R. o; n( c6 Rwhile [k < people]
0 O2 H0 t; p$ v2 s& f, i[' U) l% C: S- ^" I3 O: t
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)' p9 ~) N1 S- N& g @% L# Q2 T; l. b
set k (k + 1)
l, g' Z' O4 s7 {, v; h$ ?]
, x6 d$ l" C5 @( n: E* Wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: a& h% I2 S0 L) ]$ X8 eset global-reputation-list (replace-item j global-reputation-list new)
5 ^) e x5 J' Rset j (j + 1)
5 S4 T0 l N* D]- ~* ]. K, d1 u1 W4 X( [/ O8 u/ ~
end# r5 D: o' t& J- b( i5 q9 b, H
. m# Q4 h0 D5 r. R2 [* }
& I+ b6 F' O5 t8 K0 o$ }. O# v
. ^% n6 A" _9 |+ m1 m+ A6 a: Nto get-color
/ S' T# b- i1 d, l
7 W! B* }3 y% Mset color blue- P' X; V& w: r+ ^( d
end
5 ?7 c1 y5 U1 ?: Y
1 h g2 c& l2 J2 V w m0 uto poll-class
) N) x8 p$ k% Kend$ e4 \/ J; J% y2 K8 d) Y: C
m0 |, v: M6 K( v0 o6 i1 N, o0 K6 `to setup-plot1
4 b" G% Q- x2 W8 @
1 X4 @; m; \! B% Gset-current-plot "Trends-of-Local-reputation" C: w1 N- ?1 F
& i1 v" k1 Y1 l' K# \
set-plot-x-range 0 xmax$ v% e8 _% k$ Z3 [; S. @' ?, C
; G$ ?( [& ` V0 X: H$ X9 j
set-plot-y-range 0.0 ymax
. c; X& D, p: C8 i* u( j4 i) kend
' X1 t/ p" o" j2 M# i4 b; O7 j* _6 s( V% T) a
to setup-plot2
2 x- a4 F- D( c- Z6 N3 \ o" `2 b
set-current-plot "Trends-of-global-reputation", H, k" ?3 ?( y. Q* z1 x
2 W9 | n+ F) U4 X; Vset-plot-x-range 0 xmax" H- J6 U' T; l# E" E& l) b' }
, z) M) k) I' q, E8 I- M U) X" [
set-plot-y-range 0.0 ymax
( a0 w( R& k, {" j4 Z8 v# |end
( W9 R' l8 X0 R# o: H
0 m2 X) z! w% J+ Y' X+ r3 oto setup-plot3/ e- Q9 s! l1 J$ S9 W% U0 z1 u
0 W0 k) _5 l1 p' l- N/ `set-current-plot "Trends-of-credibility"
. l& s# h& s# Z0 u/ L2 X$ _. V3 G
! t* W( V$ o$ R* X, l9 yset-plot-x-range 0 xmax1 |3 M% o+ ]4 L5 S+ q
2 N V2 d0 r( R& ]. `" n7 {0 z: Aset-plot-y-range 0.0 ymax
7 k; r9 h2 d! K- P# Bend
/ ?. B5 _- F- q' K" o1 J7 S
z5 |6 t1 B& ~3 fto do-plots$ J( F5 H6 ], j. ~9 {/ A
set-current-plot "Trends-of-Local-reputation"3 f: [" @) H' Z' g, I' E
set-current-plot-pen "Honest service"
3 F0 G8 z& y1 X2 j `end4 E! f+ G; X, Z R* Y
& a9 v6 r( m, M( Q2 k* x[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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