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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& m! m' W+ f6 ^# [$ n3 L
globals[
' [! R% m% V" v4 N5 M) \xmax
, D; Y7 g, p3 p/ W' J9 ~ymax
$ g2 O* ?' Q# m3 jglobal-reputation-list
- q% t3 l9 a3 m& O' l O$ W5 r" W; ~1 F- U/ X
;;每一个turtle的全局声誉都存在此LIST中4 n6 h" N* h$ s) J9 z3 O; M
credibility-list4 o$ U6 T3 X- S0 x7 A( d: E5 H
;;每一个turtle的评价可信度* L2 L; q0 ^3 n9 W* M% @
honest-service
3 U2 S, b! ~! C o+ @unhonest-service: @/ i- g' e. S: C+ P/ s
oscillation
9 Q. X* n9 ^" A; Trand-dynamic
+ ^. ?' v, S6 W" s. ~. j]. d/ H3 } U5 j2 y" r5 _
A) J x8 v/ _) b1 f4 _turtles-own[* q U6 O3 E4 C% B& }5 Q
trade-record-all
( w/ ^8 N8 k) _;;a list of lists,由trade-record-one组成
) T1 D, g1 H4 s4 ltrade-record-one
. T; v: r9 W5 y) L- q: _;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; x9 l, i: l( _
1 R7 J/ L6 m2 ]' ~;;[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]]
0 V/ ^) n' U, m- L& ~- Qtrade-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]
: H7 Y6 b" K8 O% ? e6 G& bcredibility-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 T; m2 ?0 M$ o' ~: Z
neighbor-total
N$ k) I* I. T2 V9 i% \7 q;;记录该turtle的邻居节点的数目
" g! J( C C/ p1 t) x/ atrade-time
/ j: K" D, R0 t6 D6 V;;当前发生交易的turtle的交易时间) y" S: }1 \* P
appraise-give$ x0 O0 `4 k$ \% J7 D! i1 j
;;当前发生交易时给出的评价% |7 r) k! O% |
appraise-receive
4 _; \- w8 Q- N0 @1 p$ i;;当前发生交易时收到的评价# ^! L3 z& d8 H8 F5 ]/ z) O( l6 k
appraise-time
" M' y9 I+ C$ _- y;;当前发生交易时的评价时间 y5 P. [, M6 Z) v
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! L% R: h" N; |$ htrade-times-total, Z$ H4 t& N# @- _ F. h9 k
;;与当前turtle的交易总次数
) r0 a6 q) x9 _% O5 ^* S! s' R6 Strade-money-total# l, D4 H: {) z3 B
;;与当前turtle的交易总金额
; }5 U: X6 s% Ilocal-reputation
+ P# e4 m! a) B. ?& x2 Z7 f0 s9 P uglobal-reputation
7 z3 z5 c9 b7 O7 P. q0 Ccredibility
9 i! L9 @4 [- a5 Z: X- b, P$ ~;;评价可信度,每次交易后都需要更新
+ \; @7 \. E% Y$ |" U; Hcredibility-all1 Y& i9 S3 e0 W6 I8 P! G; T2 M( n
;;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0 X- K0 D! q% w( A
+ p7 X$ @# R$ p6 d 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
' U, H1 o. k# ^( }: _7 O" |, e( [credibility-one& H. l) _" U J2 {( }- L0 |! T) 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2 P- i3 I9 C: a7 Y, E' O
global-proportion9 F# R- [% R' K
customer) K8 Y- P' t0 U Z- x
customer-no) Y. b, ^4 I; t) g! c
trust-ok- L! g4 i! v/ [% l) q
trade-record-one-len;;trade-record-one的长度( }% i3 X, z ]" ^9 F# o
]
+ T2 x) L1 z: q1 k4 |/ }: h, F' Q' C( n% j1 Q
;;setup procedure
. E+ ^3 B/ _- }, v' l- e
/ |+ x# z% B* h7 Q7 J7 Jto setup
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# T/ N) ^0 B. g5 l: w4 i/ |ca9 S( g4 E. O* d0 m2 @0 H4 @
: A/ R( V% ^; v K4 {) d2 `5 linitialize-settings
1 W) n9 u# e9 t2 e6 ]% a/ i2 _. `# X' N
crt people [setup-turtles]
" \( K. K9 b! h W
6 i7 y6 {& \8 V; z1 zreset-timer L, Z5 h5 @8 h5 I7 M$ d9 Z
! [2 i/ m: ^ ]
poll-class
% w, @2 l; m4 Y, l1 ~& V
8 z$ z5 _ m2 `6 y: a* P* ]9 ]6 osetup-plots/ t/ d9 }! _3 X% \+ x4 K
4 k) H6 q, ~- \9 A( S4 Z% Y" Hdo-plots
: B) G% u$ G% t" i( X. I. send8 t' ~! s6 ]1 z/ `( [0 ^/ w
. F+ k! q0 x& m: z: {% B
to initialize-settings8 m0 x$ w* o7 _
( C7 }7 q/ L. ~0 c \1 S; }set global-reputation-list []
1 P" E( O$ K4 D( F& t8 J) K" l$ x6 |% X6 }+ O
set credibility-list n-values people [0.5]
: M% G( l3 x' \6 ] w4 n6 C7 d
/ |6 V( S6 S9 U4 ^5 ?) ?/ gset honest-service 0
) O% o' Z/ a& `7 G O
+ h* A% L/ A# A2 J9 D! Mset unhonest-service 0( N! d; `( s; s8 u. t( w4 y
5 ?+ y( {5 ]8 W" d5 I W$ {3 Q" oset oscillation 0
/ b5 w. n* _8 Z: ?, e* z7 L( X& C, m, l) x1 D
set rand-dynamic 0
y2 x5 ]8 I s8 K. Aend
" @8 F3 B5 t/ ~- w" L1 k/ i
1 X; @1 G, i; W/ u$ M2 H. c6 rto setup-turtles . N/ f/ }- J/ X; j$ k* W9 c- S: E
set shape "person"+ \, q1 f; x e: N$ F+ J6 c
setxy random-xcor random-ycor
. W8 t( m+ Z' |4 o. k6 _# dset trade-record-one []
/ }1 F. @) d9 q% J$ T! |4 x: H" b6 Q% |+ F
set trade-record-all n-values people [(list (? + 1) 0 0)]
0 G2 _. O* N, `% `( Y2 X
$ }# W7 X9 E9 n9 ~1 u0 D; h" J) Aset trade-record-current []" y5 w3 @8 a0 O% M$ N: Y% R
set credibility-receive []
/ a) l% s& @, }set local-reputation 0.58 K' c2 k6 \* x( U
set neighbor-total 0" e s5 ] W3 L$ r" a
set trade-times-total 00 Y! ]- m6 I; i/ G1 } q& S7 |. U
set trade-money-total 0
3 y p5 R4 g/ W3 S sset customer nobody
) I; i' h6 w" K7 C# {' k. @set credibility-all n-values people [creat-credibility]
4 Z6 ~% I* z6 I. n Y# K6 Lset credibility n-values people [-1]. N6 t9 B) y& K* W' @/ i! |
get-color- y9 E) }3 c5 O( u% g5 k/ f
6 X+ [4 R5 e" I6 _& h
end
5 W9 B! W% P1 r7 N1 p6 t* u7 L+ |& s$ @
, t0 Z, O- A" Pto-report creat-credibility, N" _; T, O; w7 I% G4 Y9 W
report n-values people [0.5], J, E ^8 _6 I0 O/ z7 m+ B
end
% G& q2 Q. a2 |7 @/ q2 Z2 F8 K; s0 ]/ c# p' G$ K7 v7 d$ T6 {
to setup-plots& B8 d1 V$ J5 n7 b: X" ~
0 H( X9 }& l6 K& c2 W; E* ?6 \
set xmax 30
7 X% ]7 }6 C% k0 u
) j; F/ M3 s% [- f* ^2 p% nset ymax 1.0
2 R2 Y/ z: Z: S# L) ^7 m) v$ p3 ?
' Q/ ?9 Q& z x6 S, Nclear-all-plots
6 W+ O5 |" b* C! L, s" h6 B* \9 s/ A$ X0 W4 e2 n% d# E$ x
setup-plot1
. u- S1 K" t/ W) N& X3 {* I3 u9 x1 H! [9 `% f" H D
setup-plot2
: M3 f$ [2 \: l/ i O" Q" c+ J. Y" r: j7 z# r3 {
setup-plot3% m6 ] `) X# O- c! b
end# l: P" y8 s+ B/ k) Z. b6 }$ s
. x; f/ v) i, u6 X' G1 K& t;;run time procedures
, ^" K, n- x$ ~4 b
4 S$ @5 |. l8 P5 x4 N# Cto go
5 E* o* O) w! ~$ V) M" i5 ~7 i2 b, L- C+ \3 r9 ~7 y
ask turtles [do-business]% n. ]# Q9 k, C- g2 p2 `
end
2 W& S1 e6 S' c
2 Y; h- W* D2 E0 n/ h) G3 w/ Zto do-business
% k4 p( U3 w5 J4 U) H! h+ K0 j/ M1 B" V+ K: P
" A! q |2 H/ E9 _" U, P- q
rt random 360
! b; c$ { r& ^1 R
, V! W m$ Y: Ffd 1
: d9 \$ c/ O, n9 T
2 o o o- ~7 rifelse(other turtles-here != nobody)[0 D' V7 c5 k% y' e0 H1 ^: m, E
; O6 t/ e" a1 f) K7 tset customer one-of other turtles-here
4 E7 e# P4 A0 P/ ?/ |8 ^/ [/ u& m1 X8 L4 s
;; set [customer] of customer myself0 o% U- D! g- G5 B6 e. z- ~; O H( h
1 k" J" N# P3 eset [trade-record-one] of self item (([who] of customer) - 1)
2 Z. ~- y7 _5 I) b% d8 s[trade-record-all]of self
) K- e0 |' ~& n! ~# r8 d;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
! g* ^$ `/ m2 }% y: M. x) T0 s4 }# I, X5 ?" ?/ E
set [trade-record-one] of customer item (([who] of self) - 1)5 L6 `/ [4 w h
[trade-record-all]of customer
" L; u5 W2 d8 }% |- V1 z$ R# Z$ C( B! W+ ]3 G+ l9 i3 \
set [trade-record-one-len] of self length [trade-record-one] of self2 L6 {0 o8 G1 o% l6 m
) n6 u7 V# f* pset trade-record-current( list (timer) (random money-upper-limit))" Q" N$ N N7 R* o+ _$ C$ U
* E6 b. a2 Z7 _( Q ~' c* P
ask self [do-trust]
! b5 a; _* p" c9 f6 z& d0 f2 q;;先求i对j的信任度+ g" B$ {% C: b# I2 n+ I
* X) b% o* P$ h9 h" V
if ([trust-ok] of self)
/ a) }0 [8 {. o& O6 n;;根据i对j的信任度来决定是否与j进行交易[% s. O- h, r! v A' h+ J4 i6 a/ {
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& F8 S" y/ y3 ^( `8 q$ B& F: U4 p2 p% m
[- }0 j/ v9 V5 Q. @9 y3 v
; V2 f/ f0 P) z6 o1 j4 L' V$ ?2 Ydo-trade' ~% T% @0 c. B$ c( n1 t b8 V S
2 q2 Y5 G M; r" ?
update-credibility-ijl6 I& N0 K6 W: f% j0 u
3 X& J" x/ y. v; A. d9 ]1 b( r( n7 W
update-credibility-list
& w3 _6 v! U: Q0 b
5 a; n! W: @6 t$ r$ q1 t* \8 M5 }# V5 l# Z
update-global-reputation-list
: y: N' e4 E8 G& \' P
, A( s% n! z0 i% X% U+ F+ |5 z. W# Bpoll-class
7 P8 n2 q- l! L4 n, s$ g8 ^. ]# f [7 m$ C
get-color6 _7 e: g: V8 Z) I
7 T8 U8 ~9 C/ N% b9 y2 Y
]]
/ G Q0 W8 _; B' r' t0 U$ I: i$ B' u8 H2 c; V5 Z
;;如果所得的信任度满足条件,则进行交易
% w6 D" S- d, B" y
~; N' K- D! W[: P/ H! K4 b7 d f* W3 k" U
: W9 l( G3 f/ R7 ^# {/ crt random 360
$ q4 D8 d) d# o. l# H
$ _* [/ z' v. O% I8 l/ Yfd 17 u5 s& r( c( ]8 J g+ [$ D
( h5 B# G: D3 ?! a0 {: H]
& _7 `" _* D* D% `" C' _* \' A+ z
0 I6 A* d+ J5 ~. L/ H# B9 Kend
3 |; [: y% e8 d! d0 K: m1 l0 w) }2 T; ~
to do-trust
& |, y" b% O' _5 m: Zset trust-ok False5 N/ X# J' R$ u' r0 w! [0 {
: j5 u- C* F* X1 W) t
+ X6 Z( Z* Y) z1 m. `let max-trade-times 0
0 c( V; x3 w& @8 e: Y! [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 }: D, w! O# p; Z( x0 A0 Olet max-trade-money 0
3 q" ]- x6 w+ S5 t k5 Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% j5 s% A6 x/ y g b( l8 l( ~
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 ~4 O1 H8 ?1 J7 f! G* @1 k
6 o7 q7 N" i9 F1 l) h% x% a/ [
/ i6 I4 a) d& B" B& S* g% K" Kget-global-proportion
3 i$ E m/ z9 N% f, dlet trust-value+ B' n8 s4 l4 t
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)/ W" j: ?, V8 f A1 w
if(trust-value > trade-trust-value)
R. S7 _4 ]3 R; ?$ g[set trust-ok true]+ T1 y+ q s5 V; R5 M$ n
end
) g( f) |3 `0 ~+ H1 V. M0 ~! Z& W3 G9 `6 t" L
to get-global-proportion; U$ W2 i& O/ a$ J, ^9 F, g
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); Q/ x4 l& C1 Z& m
[set global-proportion 0]
" N9 |1 J: l( `! C8 {9 I4 F1 j[let i 0( R& Z" q0 c6 ]+ L1 |
let sum-money 0( h l7 }: H. Q4 }1 K
while[ i < people]
6 h3 Y6 q* N( h+ G+ d% T* H[, A( C0 {' j4 C; J" G; p
if( length (item i9 t* T) x, p+ V' S% ~7 y2 O
[trade-record-all] of customer) > 3 )
( z( L! G+ |3 |0 ^8 I7 w[! C1 R( }' b) k) f3 W8 y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 l S& T* g: R7 e]
% h( _/ t" D# U( f/ O]
' c- w- E# y; j: |let j 0
; D8 z: u, ^* \- ~let note 0: A4 A9 p& K+ l* R0 i: g$ h
while[ j < people]
5 O/ X! ]* F8 O, ?) a[! R8 C1 Y8 L5 F1 j' u' [! y9 |
if( length (item i
! D; _- Q$ F1 R- P: Z[trade-record-all] of customer) > 3 )# h7 T( [2 b# x7 g, y
[ d: N2 R' o7 ?' U
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" o$ |0 N, N2 w% P[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% s( B" w/ o8 L" |4 u: A0 J* |[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" j. G" P- l0 p
]% O% j9 C/ R& c
]. a; x I9 z- G1 F& s
set global-proportion note$ {, \" y6 {/ @/ M
]9 I* Y. F+ K1 R, [1 N
end
1 U1 E+ W6 I( X$ c6 J6 M5 L7 i' V' b$ _& h+ A
to do-trade
" d% I' ~7 S7 v9 i W6 h;;这个过程实际上是给双方作出评价的过程
( h' R( P" n/ _9 m0 x7 \set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 S4 p" f7 N4 `( p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 M% j6 ~0 Y" H$ fset trade-record-current lput(timer) trade-record-current
8 A+ n. q x0 h6 S) s/ X( ~0 F% C2 n1 U5 w;;评价时间+ Q( p! G2 Z' P* r2 B7 z
ask myself [
s. l" _' J/ s* k% ~update-local-reputation
0 J4 N/ Z& U) hset trade-record-current lput([local-reputation] of myself) trade-record-current" B! J+ M6 q. U! p5 B, W
]
' b C2 q0 `- ~2 L& U1 F, kset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 X( W- R* {( u* b. p5 ]. u8 d1 j;;将此次交易的记录加入到trade-record-one中
$ I# u% y+ b7 i$ V J+ ?2 Cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): M) _" ]# d# S+ @2 k1 n) ^
let note (item 2 trade-record-current )9 h7 n) K. `/ x6 j9 W
set trade-record-current
2 D- Y- z# E( r1 e3 ~(replace-item 2 trade-record-current (item 3 trade-record-current)), e5 {$ p0 ~- i
set trade-record-current* U) S7 v+ o1 r& D
(replace-item 3 trade-record-current note)4 I9 f2 `$ |, c( Z' }2 c0 J' q
7 x# g- g2 H0 n7 L$ s
& x0 M+ z) U5 r7 p& lask customer [9 m# X/ x% C# R/ f, b
update-local-reputation
* _0 I6 [% S/ m9 }set trade-record-current
) u _* M$ s9 D; T9 T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
a. s' m. N" X4 Q' ~! v]9 Z) f/ A6 c! M \& G0 W1 }
x9 |6 K$ J6 @/ ^
( g0 r0 h6 J* }" j5 F2 {, }; z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 V, |6 T! H( e0 z E; `. c
4 e. j5 z# E' O; ?: j: vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) \ z0 ]/ \3 ^1 p% U( T
;;将此次交易的记录加入到customer的trade-record-all中
4 L# o. i, \4 T( [8 iend, _+ O/ i& B4 P( V
9 A" g1 N* { F0 x) k- ]8 Cto update-local-reputation! J7 \1 R' ?. Y$ B' B" B
set [trade-record-one-len] of myself length [trade-record-one] of myself c0 ?2 S6 E7 ~. f; F$ E7 G7 m7 N
! J4 |5 |' I" O) v6 [/ s: h1 [
: Q# M. y( `& e+ B
;;if [trade-record-one-len] of myself > 3
# V) N; v+ ~& p3 mupdate-neighbor-total
5 a# @4 e( E3 `& @# `;;更新邻居节点的数目,在此进行
( w( C6 ?0 U: olet i 3
' `' ]- \; Q. K; R" nlet sum-time 0
0 r& u1 n8 r& U$ _while[i < [trade-record-one-len] of myself]
0 z' Y, ~) d: h) o. `- O[8 h) a V1 \! ]* t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( n* x$ U& j& yset i
4 ^+ P8 Z: K; K# e. [+ f# _+ S( i + 1)
% v, @. N/ ]$ q0 R; c) f/ m# ^]8 O3 F7 z0 {6 D
let j 3
0 ]9 C( c0 n6 o- S+ g% Ylet sum-money 0( Z' Z, H$ d4 {! i( R
while[j < [trade-record-one-len] of myself]
% U7 S( x* r5 g2 ^# n/ p[
8 d( ~7 l4 ~) j/ T( \+ Eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)' Q" C" }. L+ f" I$ [" t
set j- j" P4 s' g4 b- P
( j + 1)
$ {! t$ m! F# D: s9 e* b], @( A2 F9 Y6 G4 v$ K, ?0 [
let k 3. ^% F: A+ W- C, L3 s" }/ t
let power 0
& ~, k( s6 H$ T4 |5 p2 o0 slet local 0* ~1 c9 r& [$ [4 c3 a% G- \
while [k <[trade-record-one-len] of myself]# y2 w0 j) I+ _9 s) x9 I
[
! N) B; P4 A8 T6 ^6 ~ M1 w# [+ 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)
, u& Q5 Y" t! f, S# X* s6 Y, }set k (k + 1)/ |& m0 f' H" Y% L
]
0 v5 B" O- M' Vset [local-reputation] of myself (local)
% k: W, t- H6 eend
8 B) J8 M' T0 H: b0 p# j9 w+ X9 F0 y# K' C0 w. R0 N1 U
to update-neighbor-total
/ N( x/ q5 K% B, Y* a5 @
, x3 N, i2 P* S$ g- F# I7 gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' _* H) `" }( U' ?5 `8 ]0 K1 B
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/ Z: R$ t$ M5 K$ Bend9 Y4 i/ w$ r, r
; |3 N/ V' Z4 j; \( V7 {6 o+ f- B
to update-credibility-ijl
% I' Q9 u1 P1 Z( H3 T5 p$ P
* L& O" `( N2 y/ G' O;;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。
- ]& ]' O/ \9 s: xlet l 0
2 ?7 ]6 |; z9 b! i3 Qwhile[ l < people ]
" C9 ^ u, S, [;;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 p$ }- s0 Q# r, h
[
3 b* _( ~. p6 Y8 }. H: mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) b2 |/ E0 Z& u* `( Y. Bif (trade-record-one-j-l-len > 3)& v$ C0 ?! G" w: l- M2 r
[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
' i, P G! E! Q T; klet i 3& [: |; s" b: V( l' e9 j
let sum-time 0
) u0 `' T: I- P/ m6 F/ e; Z" qwhile[i < trade-record-one-len]. J8 C; R7 S5 y0 m* N+ l
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ R e4 k4 J: x7 z9 q" h
set i3 i- s* U. U: `' N0 d. x# M
( i + 1)
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let credibility-i-j-l 03 t R" _5 Z: E- R( W) ]* R4 L
;;i评价(j对jl的评价)
5 [2 g1 l8 D* U3 |( m* wlet j 3
5 y. h& B6 T2 S6 W0 B! K, @+ Jlet k 40 @' `6 Y2 u$ [! o& M. n
while[j < trade-record-one-len]
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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
7 d; z7 K8 r aset 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)( d& V" h0 z. E1 _& U) f
set j4 `; K; a, ?( ?& Q8 I' P
( j + 1)8 @( h- k1 W: N
]
& p7 P, l! k, \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 ))$ B" x+ y1 \% a9 Q+ {/ F
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& t1 g0 h+ H# R; P: F
;;及时更新i对l的评价质量的评价
: l0 C' [/ ~3 x0 o; N- W9 yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 \* t" ]9 K% V
set l (l + 1)
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end# M& M7 O8 Y( ~" S
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to update-credibility-list$ `6 L2 v# R9 X' l- k
let i 05 c; p0 F5 k" ~1 X8 \# e$ f, L4 k
while[i < people]
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let j 07 B# d. L2 u0 e4 D. G6 ]& v
let note 0; T- C7 A- j1 A: N
let k 0
4 e/ ^; f6 K4 Z2 M; N1 L7 n# p;;计作出过评价的邻居节点的数目
7 G. x# S. J1 o$ w5 F# ?while[j < people]$ N% z; v/ b! W& Z# ], ]' u x0 i9 V8 X
[, k; L6 E- _+ r2 G) i7 S
if (item j( [credibility] of turtle (i + 1)) != -1)
z; t U7 a9 K" g6 e! G5 Y0 m1 x;;判断是否给本turtle的评价质量做出过评价的节点 q! b* q& T( q/ V, \/ v9 m/ ?
[set note (note + item j ([credibility]of turtle (i + 1)))
% |/ z7 j7 P2 Q( Q0 P: e! l;;*(exp (-(people - 2)))/(people - 2))]$ W1 q; r4 L# ?; E/ k! [
set k (k + 1)
3 K) \% S" C9 }$ n" F- _- S]
/ t: r& }' v+ [3 |+ Q$ Cset j (j + 1)+ L: m* E4 _; `( |. P6 `3 I
]
) s4 O3 t6 {1 a) D! |set note (note *(exp (- (1 / k)))/ k)3 w! F2 b8 l0 ^' `1 D
set credibility-list (replace-item i credibility-list note)0 D* ^/ w0 W, Y2 x( X
set i (i + 1)
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' x9 C2 i& {* b) O7 i' c6 j6 ?end
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to update-global-reputation-list3 q/ L0 n g& a7 ~1 e2 i
let j 08 m0 @" I% I& I: Q: I; [
while[j < people]
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" J% x# e: v$ Y- V/ |let new 0
8 {5 u0 m& T, b, r9 D;;暂存新的一个全局声誉: S* k3 i( D) U5 N8 `' \
let i 0, o1 N- \" Z% a' j7 Y# d' ~* l0 ^' B, P
let sum-money 02 v1 W# w& Z& l1 a1 l
let credibility-money 0
/ c' ?% r8 `/ }3 R4 r Xwhile [i < people]8 r+ t8 }8 W. o O7 b$ F# X
[
" ~3 h# ], @" y' wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 X) k1 A5 n; s, oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" t( F6 A3 [% Jset i (i + 1)
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let k 0
z- q9 F) C: t* B6 C2 R# mlet new1 0
" g- N: g3 z# L* P" I7 j Owhile [k < people]; D- w$ X: n( s, J+ l. U
[
. k5 t6 C% w' \" _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)/ N9 ~) x7 q0 T: L/ Z7 K* c
set k (k + 1)1 J7 @7 j/ ` `( _! t9 s
]
) E9 R2 I- g4 r( l& D- aset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ X, |( T( r4 J ~set global-reputation-list (replace-item j global-reputation-list new)- X/ ^# z) }$ s
set j (j + 1), C5 l$ n8 I3 |5 b' ?
]
6 q/ z" \' c+ `7 Z. Vend
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* I4 j: i& E" Vto get-color
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" r) A) q6 L8 r% e, aset color blue9 w. o, q7 h: u8 G! H
end0 e3 {6 ?2 {/ b+ v6 h6 X
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to poll-class, H5 y9 k9 E& R5 {- P4 j
end
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( G* `, c- V ?, U; p' lto setup-plot1- R9 ~: b( c, j
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
. I# p5 A8 v; Z3 E9 N4 Q5 D% l% {end
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to setup-plot24 `- T( p% t Y! b' h! i
6 w( a- g1 Z9 ^8 N, jset-current-plot "Trends-of-global-reputation"
5 G% b. D: X0 @. b3 C' k; c& g6 \$ a" }
set-plot-x-range 0 xmax% ?5 `" f* o t# @) r
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set-plot-y-range 0.0 ymax8 U% |9 D6 m% f& x3 c
end
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to setup-plot3 T6 y! G0 Z4 y: M9 H5 v( h
+ J% Q4 W) S: }8 S0 {, m" m
set-current-plot "Trends-of-credibility"% S$ Y6 D F3 |9 A! J
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set-plot-x-range 0 xmax- N3 o- N5 O# q% N
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set-plot-y-range 0.0 ymax: O* _8 z, n& p( O$ Z! ^
end
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9 X5 U3 m- k( {( P M& Z4 W1 K$ Ato do-plots
- Z0 K' T& y- |% Z9 i, y, Cset-current-plot "Trends-of-Local-reputation"; {9 H# m6 n( {4 v, ]
set-current-plot-pen "Honest service"
) C6 p) B) o7 u4 C% hend
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! s1 J: [& K% Z$ E, U1 B* X[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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