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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
' u+ w' i1 @" U. V7 r" s; p8 T9 Pglobals[5 E7 m0 t3 ~5 r( i
xmax
' ~4 W0 A! y8 e- v% ^ymax+ R! |8 F4 j) q3 |0 e2 \6 ]
global-reputation-list
) m- N- ]# G" v! e
8 v7 T6 E) I9 b ], t3 e! i8 k;;每一个turtle的全局声誉都存在此LIST中/ c( y/ a: m- ]9 w
credibility-list1 x' ~/ B# i# H% i5 z* L
;;每一个turtle的评价可信度
0 U* C" i) ~) [( Mhonest-service
: P7 b ~9 }# g' n+ p0 Punhonest-service
# [" M, w& _/ ~& f1 poscillation6 t R) v- \; t% A* m; m
rand-dynamic
3 V$ V6 n, s. A+ i' q8 f]3 [/ _3 U0 J. @8 c
+ m; b+ h+ @, q. ~* ]' V7 ]1 Y* bturtles-own[+ a8 s( g, ~( u% H# X
trade-record-all5 N; y2 I2 \; ~1 F
;;a list of lists,由trade-record-one组成
/ P5 l; }+ h3 \! s" s# W$ btrade-record-one
* C/ b6 ]3 ?4 z3 A" @4 z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, F. H) c8 \; G0 ~; j& x7 m' x
& h2 p @$ j+ X) d2 O9 Y
;;[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]]# T4 q0 D K' B
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]' q4 O; e. r& M' m! m( b
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
/ A' M" f, ^% n3 {0 u# A8 ?neighbor-total, t# F1 A* D, P+ v0 t
;;记录该turtle的邻居节点的数目
0 o+ l: M7 f. w! K5 n5 utrade-time8 Y. n8 ^2 |" L+ [8 H
;;当前发生交易的turtle的交易时间
; x2 w1 g! @# [4 d* P) Lappraise-give/ K4 ?" A Q5 y# L5 l( i
;;当前发生交易时给出的评价3 O# p" q4 y6 Z; `) X k6 s
appraise-receive
' t2 k0 u4 B# ^) d5 g( s;;当前发生交易时收到的评价
$ k$ L9 @3 O- c1 o! E$ ]8 P8 Rappraise-time
" J& n) ?# @1 O8 |;;当前发生交易时的评价时间
8 ?% a1 V6 c' Q6 blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 ~& U- M2 U" q+ C+ G) o3 ]trade-times-total
6 f9 U5 P C1 D1 O7 G* D% X% p;;与当前turtle的交易总次数. {/ C' Z) X$ I' ?& I" i7 z
trade-money-total
. _, N) Z/ `9 k$ `! F; T5 n;;与当前turtle的交易总金额1 q F7 K2 u5 L5 v3 o2 j
local-reputation
9 J0 `* ^3 v! y9 I8 Qglobal-reputation
3 w! j* L' r, t( }4 h& Q+ t4 hcredibility( o' q. {% Z* v. \* y" h2 j
;;评价可信度,每次交易后都需要更新8 W |( w$ }! k. T- H( W, F
credibility-all3 n' k" X* Q* G. \. P/ Y$ ]
;;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 M5 Y3 w& v
2 m i2 `5 n5 B; I0 c;;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* ^. B- h* [$ w4 {
credibility-one
# @" r! c% k0 T) y7 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 L% U' u2 }+ X, O$ [
global-proportion
) w& w& p1 C, p& ^; X6 ecustomer8 l$ W/ C. h3 K; X9 i+ Y: d: r
customer-no
" `: }! j1 x9 E& B1 N1 Z+ Ktrust-ok
% b' n6 F5 |; }) Q# A Ztrade-record-one-len;;trade-record-one的长度
; ], v: |- F1 B]
9 K* C/ m; E2 L( S8 d" c
2 V! d4 X+ f% D( z: a;;setup procedure
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to setup, j5 q& ~. M1 l7 G# o
1 U) ^5 E2 X1 \
ca
& O$ `3 i) n# `. G3 k! @' a5 `
$ t b; P+ s. x" h9 H, b8 M. F( vinitialize-settings
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crt people [setup-turtles]4 b1 B+ K5 _' a
3 N0 S7 t# m, H5 x7 Ureset-timer
' @( d$ O' q6 ]# O/ f! B* g8 J+ Y; T, @9 h; _* p
poll-class, a9 k8 f* ?7 Z
: d0 V/ k4 N: ]" _6 a9 S+ y
setup-plots( p5 c. A, ]. Z
5 W9 M" s! M7 R4 s& `do-plots
5 A3 ]" X5 f% lend
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to initialize-settings
% g! ]0 P" Z& p& }9 G$ s& ?( |4 E8 O; x
set global-reputation-list []; ?. v% ^5 s1 }) p' | ?
7 K( \4 U1 t' Y! H+ Q
set credibility-list n-values people [0.5]
8 S' Y) P2 j8 |$ {$ R2 W
, u, V9 u) }3 E6 M4 Kset honest-service 0
) X6 L5 ?& Y6 [; v h+ F: {, L) u, @7 o% i, R9 {# ?
set unhonest-service 0
H/ ^6 a/ G3 B" H; R4 a$ v
- V7 p+ W, x0 K! C' W0 I. {set oscillation 0
, M' t! T; ?. O( k
7 `' t' P7 |5 [8 V! V! Cset rand-dynamic 02 w7 q! J- B" V' G, b
end, X) j* Y3 q% j" l
) a' o+ l* o7 f) m. ]" B, r$ m
to setup-turtles
% d3 q' k: p/ U7 ~set shape "person"3 |* d* J% N6 @3 b$ N- p
setxy random-xcor random-ycor
# ^, G4 T" v0 Q) lset trade-record-one []3 d4 w) a7 ]: W3 S% x5 s, F! U
! F& q, `2 d& ~# mset trade-record-all n-values people [(list (? + 1) 0 0)]
& |, |6 I1 W* c% `8 E* |
" }( f; Q' j, N0 ^: f! uset trade-record-current []7 R) @# Z0 D6 A
set credibility-receive []
; Y' g) n0 G4 }/ ^set local-reputation 0.59 t9 |) j: ]% B* f& z1 |# M' h% W
set neighbor-total 00 @2 g9 F0 J2 Z* t% @& F
set trade-times-total 0
- y( H: p( c9 ]' \set trade-money-total 09 }7 G& I+ H6 v9 J
set customer nobody
7 u+ q/ e& @: Hset credibility-all n-values people [creat-credibility]
4 u1 \, g# H6 t" Y7 `) C! C) Q# Dset credibility n-values people [-1]
# N- W- c, _+ T# `0 ?) h7 [5 aget-color
% D( H* d( V% T& A: U
. }5 z" F4 ^* ~' v3 a* A& jend
- _3 k1 v' l, R1 @
- @1 t. i( s+ d' E n1 Lto-report creat-credibility
; a( q7 Z0 G3 u$ v; X/ S" Ureport n-values people [0.5]7 o* B" E6 f# {7 w# Q8 z6 m
end$ h2 a. G0 T2 S" \/ B5 V) Z
) Z8 \ N2 i. E5 V' Z m/ G) V6 ]to setup-plots
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set xmax 30
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7 ^7 E5 ]& t" A1 |& F( \" h! Pset ymax 1.0+ U) u8 _8 t0 o6 a$ c# q
, p1 O6 T! x1 R, {clear-all-plots4 \8 c) ?2 F6 x0 P7 e
% V% m- J* m" ]: z4 i0 m! @4 qsetup-plot1* w) K! |( K% f, q8 _
0 S6 u2 s' } j" W5 u! a2 Ysetup-plot2
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setup-plot3$ q5 Q8 d7 H2 c8 I+ V1 f( ~
end( L9 C6 V5 X# ]- w
: n. w( {' n/ C h3 P
;;run time procedures
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to go
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9 f+ m: h: p- E+ A% Y, @ask turtles [do-business]# L- w; ~7 `" H( \% ]8 I- U8 T) r6 O
end
& g8 F9 k4 M$ ]: M- a$ G. S9 X
3 _ I0 R% L( q! E+ n0 _to do-business
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}4 n: \' `% h* [$ x: q& Q% z% {( Y
rt random 3604 a: b m# }7 U* k$ x& ^5 E
& g- D/ J! |* ]% i
fd 1
, {/ q9 {/ ~" Z4 a
4 w; k/ R- K2 Z4 Y8 tifelse(other turtles-here != nobody)[
) \- a) Y& A D0 e1 \1 {! \' D+ P9 e' @( G$ _* d5 K# S( i
set customer one-of other turtles-here: M3 [1 Q4 O9 g; G
# m: w) _4 \. d: D3 m' v;; set [customer] of customer myself) M0 z5 ~. E: E+ Z6 {
0 o& i Y5 o/ V1 A8 |
set [trade-record-one] of self item (([who] of customer) - 1)8 Y* p) Z5 a; w! L. g
[trade-record-all]of self
; E6 e! f- t0 g5 ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. h6 T9 R6 B! T6 K1 k5 C2 o) ?) M% F# {4 M4 r2 Y1 I- M
set [trade-record-one] of customer item (([who] of self) - 1)
7 A6 \+ Y: I, H[trade-record-all]of customer
# t. u& t/ I' p0 b" q! M* D
q1 q8 u0 ?# P: g5 I$ Wset [trade-record-one-len] of self length [trade-record-one] of self
- e5 @* C$ ?0 q H9 d4 B+ i
" `1 I* x8 b1 k. R8 R5 W3 u; o0 dset trade-record-current( list (timer) (random money-upper-limit))
. t5 r w* Q$ |/ Q+ Q3 a8 k' G2 `1 k4 x! n# ^- p- L4 e7 a
ask self [do-trust]
8 ?4 s* m- L: o4 m* _;;先求i对j的信任度4 r& T# o5 S* J2 s4 [4 \" O
, t1 Z+ X: r m3 p2 p. ?5 N" aif ([trust-ok] of self)
. R) Q% u* C0 w;;根据i对j的信任度来决定是否与j进行交易[
& Y1 U5 d; ]5 c1 \- j. rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 F4 Q a% q9 P3 E0 [3 k8 L! J
7 U! Z1 W# p' w% C4 {: n( n[* M0 U7 x& [& X( r
C0 i# R8 ^* `1 I! B
do-trade" P' z, u! Q, @- ?% i! D- z
0 A X# W, l/ t% y+ r" y
update-credibility-ijl
% Z7 K. W! V) S' h$ a6 H& S3 w# S2 g$ x. H- D, B2 O% \
update-credibility-list
. L1 f- K& X5 h) {
- Y9 F8 F0 `4 b* ^) p5 b+ z" p; Z
update-global-reputation-list: s, y% K. A) Z# l! @4 R
6 N* F% f \! a7 e- T( R, B" T
poll-class( w( i3 W R8 F |' {
1 p1 ~% ^! P& L: \& B3 b9 r$ G5 |) a/ f) u
get-color. V9 E$ H9 \4 W, ?
6 ?2 @; l, c9 @8 E]]
% J. s% N# c! L" X
( {, X e6 x: l5 N/ h6 J/ T;;如果所得的信任度满足条件,则进行交易
- ~2 C% \9 q5 P9 D! |' v' E5 J6 @3 S1 |( x6 \3 S2 | Q+ j
[
( Q% f7 J/ q1 E2 D& U t6 z: M( a7 k* n+ K+ B! y, V
rt random 360
) r+ G! R4 k: n& }2 H% ~* x! A0 h; Y. _
fd 1
, g8 N6 h, w+ k P
5 i5 Q4 k, k# C% ^]) j6 _( K( Y+ t9 ]: C
) \' }% e/ }6 X
end9 C! ~4 v) J e$ V# L5 ~
5 I! \! Q2 c( k9 q9 L6 _to do-trust
7 j L1 ^8 ?) w/ @( jset trust-ok False# w% D, b* b0 \( J2 t
, c2 \" k L- v, f& p/ o
0 m0 V! I5 \0 I, l9 ^) Z. vlet max-trade-times 0
2 ^1 a; J% H1 @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! o9 H8 [9 i) H) ]* j9 L0 _
let max-trade-money 0
' V* \1 [+ T% m0 U/ `% S0 q6 Dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" o! ~6 C0 u* H ?( Wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& P% B3 z; V* s& ^. Z* t! K* g/ {" U0 Q2 R1 G
: n. B4 S Z) t/ f' d5 }
get-global-proportion: g1 Q+ \% `. i$ x- Q K
let trust-value' S- t0 C5 Y9 \, D; l& m
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)
) e! i; g# [1 W: c/ a$ C9 h Yif(trust-value > trade-trust-value)
6 j8 l( {0 H% ~6 O; M[set trust-ok true]
. U+ A+ F% w" y0 U8 K) send
2 [5 Z$ ?' F8 G/ y0 T* w
4 p7 y+ E# k( J6 p F( x$ y7 _% Wto get-global-proportion+ W9 E: L( j+ \# D
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ O# [: v1 U3 V7 S' Y) x& J+ K[set global-proportion 0]
9 H# D: M& }8 t; U( I3 m: k[let i 0
' g9 S$ R; }) F' ^let sum-money 0) P/ `/ k7 R' a3 q$ s5 E% X
while[ i < people]
. l9 T9 ~0 E+ r* _" a[6 u1 Z& R5 r0 L
if( length (item i
9 _8 J D+ O7 E6 U[trade-record-all] of customer) > 3 )
7 `' _% V& j: C" S[( G3 I+ X/ y' c6 t
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" r+ y" @6 \$ O0 k% J- r4 J/ s]( p& T8 L5 k m5 c8 V. V
]5 s' w* O) h0 o- W/ k: U+ X2 \
let j 0: h- F0 H- j8 O/ _/ Y
let note 0) [$ h' Z! [' m3 y3 J4 D% t
while[ j < people]
6 a' m7 t9 M. `% ?: b. W[0 C, i \( ?0 L0 W5 L1 v0 G4 ~5 X! X! K
if( length (item i* i# `- H. f- `" |3 N7 c
[trade-record-all] of customer) > 3 )
4 m ?5 w; b2 {' F. k; q+ a% b5 ^2 {[7 w1 n. h/ Z' L1 J* F6 g% S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& K, `7 @& g: p( k3 V# R! H[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- f* C7 {* {: G
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 l6 x2 M- ]2 x0 |]* k, j. J" M& c$ g, M8 K
]
; }+ s' W0 s: r/ R' L' Xset global-proportion note
8 ~4 C$ O, l8 @& e0 ?7 T/ f]" b" G) T3 _" ?/ X
end
0 E0 N3 H3 J2 A- ?6 `2 y# s
6 f* z( i9 N# y4 ]7 S* ~* dto do-trade
1 c, u: b( w6 F& E6 e- x% u# G# c;;这个过程实际上是给双方作出评价的过程3 h9 _. B$ D! T/ j6 s+ { O- @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 T3 H; O6 x( t( F# ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% I2 J# I9 `* y+ R* q" Mset trade-record-current lput(timer) trade-record-current
+ F' n( \& D$ L i' H" c, j;;评价时间
, N" _ r8 |6 cask myself [
' u( M& u6 l8 g3 l9 p! Z% c4 ^update-local-reputation- Y5 {- {" `, O& g4 H
set trade-record-current lput([local-reputation] of myself) trade-record-current3 d$ O8 ]- z, G+ O% {$ i
]+ N: b9 t; a2 l( u8 ]' j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# _3 c% ?6 \8 L+ ?;;将此次交易的记录加入到trade-record-one中4 n9 I' f1 ?7 z( o \' W% Y- K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 y* C3 Q9 i, Y2 m0 ?$ |1 Llet note (item 2 trade-record-current )
, d3 ]) D. f3 Q8 J$ ~4 y4 ~; Fset trade-record-current$ s M( i& {" A; u3 y
(replace-item 2 trade-record-current (item 3 trade-record-current))
" `" m! T, o# m9 }6 `8 n0 pset trade-record-current
% k" q: N$ o6 n(replace-item 3 trade-record-current note)
5 c1 |) }! V& q, f' t# O" ~# X. ]( t* H3 _: q
- G6 R1 [ P2 ?$ X+ m; K1 vask customer [
; o$ L# G( j; r* w; n' Gupdate-local-reputation" k9 ?# K+ V w5 @/ ^
set trade-record-current
1 g3 d/ U% f- G(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - X" e S; ?5 o/ \1 h
]! P( p+ ?& _3 [
6 y, @+ D/ t6 I. c9 r3 b$ @1 d* c# }& m# d2 } a4 H0 ]# ?
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 [/ T- g! k8 J8 p% }( N& T$ t4 h3 o7 T* k8 K. V% v& I' j
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), U' y5 Z t5 X
;;将此次交易的记录加入到customer的trade-record-all中
& m4 u/ m* {4 v* a( v2 Fend
" y1 Z2 S! Y; }) D- m {# U9 t+ X( e z+ ^( Q' J4 i
to update-local-reputation
9 G: p. [/ W0 `3 j2 A3 Dset [trade-record-one-len] of myself length [trade-record-one] of myself
% f8 i9 m" H* M# y& J! |* W
& k8 ~5 B) k# l- n7 _1 K8 y& L8 L9 a- u# l, N
;;if [trade-record-one-len] of myself > 3 - \0 Q$ W) Y. k1 e, o: |) c/ ^/ W# Z- _
update-neighbor-total; K/ z+ B( ]# W$ q( q% x
;;更新邻居节点的数目,在此进行
: P% E: [( Y" dlet i 32 B' F* ~9 f$ c, }
let sum-time 0
4 ?7 ~6 [$ u* `" ^) kwhile[i < [trade-record-one-len] of myself]
$ H# D( _/ z8 B$ j% o[8 e8 ^$ S/ d, ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# F. v$ T2 l2 T4 `" c7 a; o
set i& Y& `3 a" c" F, M. p. s1 @
( i + 1)
+ r3 e8 y* I4 M8 Q7 n3 t$ n]
3 O8 Y( | g1 Y3 ?% E6 ] Y* }) }+ plet j 3
# n; m9 F1 n5 alet sum-money 0
2 H: s" j0 N- l, U2 Ywhile[j < [trade-record-one-len] of myself]
; H1 G1 f! C" u0 L[# |, t. U4 I( u* P4 D! k: i$ ~( f/ H1 \
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)4 [) k7 u u6 K
set j9 Q8 c6 D, ~1 v2 v+ x$ C3 {7 i
( j + 1)
& }' a" r6 [ ~) o* ^]
9 H) Z& p. d/ V. W4 {let k 3* L% z% s% P" P, C' f" s& q/ I
let power 0
. P+ b0 T0 t8 z/ D! p$ T2 hlet local 0
0 Y$ r0 U# h# ?( m( h- U2 C4 V5 Zwhile [k <[trade-record-one-len] of myself]
! \& ]8 a7 a" H- d[
$ Y) R* ]1 M; W o7 _( G9 Xset 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)
8 M2 F$ v; |8 @* l& t {set k (k + 1)
* g0 F1 ~0 ^0 a4 z! ~]
% v- U! w* @) E a7 E8 ~set [local-reputation] of myself (local)
6 H2 r0 Y0 Z. H0 ] y0 Pend, E4 _; R; r5 n. ]3 H# G
5 l/ P0 B& y% t" w8 x3 d2 gto update-neighbor-total5 z& {7 I1 g5 Y" D
1 k7 E$ ]+ |) |' iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' w9 N3 P& G# p0 n' o) D
5 ]+ V# N& K/ l( P& J! i
+ F7 b3 ^9 W) k, H8 Xend0 V# H& U+ n% D C7 v8 I2 T
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to update-credibility-ijl # h% Q, y I" y4 i' w5 v& g2 U, G
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;;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。
1 t/ t% G+ K8 ]" T; S8 flet l 0
0 ~! h6 y8 w9 t. |9 p# ]& rwhile[ l < people ]
5 m O0 j3 v! n; \$ o' J;;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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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 Y }) }: d9 _( n3 G
if (trade-record-one-j-l-len > 3). {4 b) Y( d/ z l
[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. H" U% }4 t( }+ C
let i 3
/ i0 f& i0 g& rlet sum-time 0* p. W0 Q; D4 Q/ i# r, c5 O
while[i < trade-record-one-len]! I/ h. A9 {* R
[
. J. [6 Y* l1 L/ Tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ r1 v" y3 [2 \& G! j+ G" L
set i
2 V! Q7 Z) i" v( i + 1)
+ Y8 ^. h0 x& o7 C2 w8 ^! S" C" q]0 g: L! B! z1 g$ i9 j; r
let credibility-i-j-l 0 G0 \6 b- \8 I' o
;;i评价(j对jl的评价)4 W. P* m' Q, v
let j 3
! {* G$ g- |4 c* G0 z$ Mlet k 4
N J3 R) }9 w3 }3 \5 fwhile[j < trade-record-one-len]1 B7 _8 q3 m1 J' f8 R$ ]
[3 F9 j7 w. G( K5 ~6 b3 d( ?1 N
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
0 k {. i0 R8 N! jset 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 H) N- [9 D, Z
set j
! Q, @/ I; ?% w( j + 1), Y2 f6 }. ?" \+ ?3 B, Z% ?& `
]
4 i. t5 r& r( U3 ]: U8 Zset [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 ))
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6 @6 t' R4 a$ `& ^+ _, alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ p/ ~0 F Y$ v5 C1 @! h;;及时更新i对l的评价质量的评价- A' ~7 `3 N l1 `6 y5 _5 }# D6 }: T
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 d; y2 _6 L* Zset l (l + 1)
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end
& Z# c% Z4 v. _# \1 Z- c+ u
/ a+ P- ~+ W+ sto update-credibility-list
2 G$ W) r: A8 [6 ^- n% xlet i 0& m( J& D$ e$ e3 m! t
while[i < people]- ?$ a6 L- q$ ?' [7 S2 E
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let j 09 L, ^9 w* R j% w( m! r
let note 0! @% }: `% e1 ?
let k 0
$ A2 }* V5 j7 _;;计作出过评价的邻居节点的数目+ [* q; Q# {( W1 b n
while[j < people]
0 @; D, Q, }# J) J6 i, T[
( R' N; R5 I6 D& |- Tif (item j( [credibility] of turtle (i + 1)) != -1)9 [- t- E) p/ {% }
;;判断是否给本turtle的评价质量做出过评价的节点% }, Z0 _( H# X+ W# J% L
[set note (note + item j ([credibility]of turtle (i + 1)))
^& W- U2 l8 p9 ^) S1 a1 z' K) D( n u;;*(exp (-(people - 2)))/(people - 2))]
% x `0 O* h0 T+ tset k (k + 1)
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set j (j + 1) Q! n( Z& o/ ?
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set note (note *(exp (- (1 / k)))/ k)
, D% E7 F4 X6 g/ d' m2 H i U" x$ ]set credibility-list (replace-item i credibility-list note)" h* w' M3 Q, y( r+ H7 m
set i (i + 1)
% x n2 y% ]& f9 p]
) P2 F9 o1 _2 ?, {end9 B0 @# T& D1 c. C0 f+ N4 X3 h
4 ]. C% K) R' A! j; rto update-global-reputation-list9 x5 b. W+ t' Y
let j 0$ H- D9 z7 l: H- }3 z+ m
while[j < people]. z) U" S2 Y- }1 `/ C: I
[) L$ [$ a" p8 H7 v4 |3 H1 ?) }6 N- [
let new 0
: T" v/ v) `% t; ~( `;;暂存新的一个全局声誉* K' E# d$ @" E+ W) o5 s
let i 05 v F6 d5 b5 s- \% m, q2 g4 S3 Q9 W
let sum-money 0: Q, Z0 w4 @, w* Y" F
let credibility-money 0
, J5 \8 z' `. e' Vwhile [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. R+ [7 b4 |/ p4 nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ G% z; P$ ~/ f+ @9 x5 ^, oset i (i + 1)
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/ ]# n, H/ b/ i1 J! Z' R0 ilet k 0
, W# ~! U7 ~' M! i* T9 c, \let new1 0' a: @& l/ k. e+ i7 _& Y
while [k < people]% Z- i+ i9 f: B, G3 I7 i X
[* t- T: Q' A3 x0 Z0 I K
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)4 A' t6 L+ f" S; h8 r0 I
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" z8 l8 F# P1 a* Nset global-reputation-list (replace-item j global-reputation-list new)* Q. b: h! Y) H" X; e% B! u, y
set j (j + 1)
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end0 |' Y0 j/ n$ q6 b
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to get-color
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+ g7 p9 q1 p- V/ Z- ~' o( Uset color blue
+ V5 N; C' G: H+ q4 Vend
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/ j; X# ]! u7 ^* J. Y; p4 ?to poll-class9 U! C' Q* v; b' `4 L
end
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3 v, |7 h4 O8 g# B- ]' Bto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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$ e5 T" X5 x, x. H, F- d% Sset-plot-x-range 0 xmax; Y/ r3 m3 Q3 m- v( D$ `
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set-plot-y-range 0.0 ymax+ G8 r! o" W0 Y! z( M3 x/ z/ V
end
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8 l3 S& s) A4 I4 R; gto setup-plot2
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set-current-plot "Trends-of-global-reputation"- C+ Q( t; {& D, A
0 C- n1 K9 q. K: f( ?set-plot-x-range 0 xmax
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$ q/ O9 l4 v1 @/ E& Z! Xset-plot-y-range 0.0 ymax
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- c7 u1 h, F" ^' N5 [7 n2 u
to setup-plot3. w" y4 A) L" \
2 p" H j# y% I) r3 Eset-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
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: N# S: j" j% E0 V5 P( D" h: hset-plot-y-range 0.0 ymax3 \8 ?4 V: @. Z1 _' F: G L
end
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, J! _$ N6 E) t! A7 X" u5 h qto do-plots v7 |4 |* Z) e0 {7 T7 }3 w/ A; P
set-current-plot "Trends-of-Local-reputation", U7 x* k: f F# X; w4 |: q! g9 @
set-current-plot-pen "Honest service"" K3 H' I- ~: H8 R' X
end
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) ?$ J# F1 P6 Z# f[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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