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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3 w4 j* O( r6 L' f
globals[
1 z3 F0 X8 R$ e; u/ B" {* Bxmax7 S) f' t# d1 _6 y
ymax- k/ \) n- w6 M3 j( q( p. l% X
global-reputation-list
5 M' a. G/ e% F' ^- Y
! I0 a! N/ Y- H7 g0 D;;每一个turtle的全局声誉都存在此LIST中
7 l) U0 E2 {8 |7 l q6 c6 Kcredibility-list
( N+ P" T6 v8 A4 @+ g2 w;;每一个turtle的评价可信度; ?6 q. T1 B7 t0 _3 K: M
honest-service2 H5 k" R9 p+ F) G& f
unhonest-service
( Q H+ H1 X: f: }oscillation
) c) `& z( d. L; w5 m2 @# lrand-dynamic
5 n! S) N) b" s: A" o: @# h]6 [ w, z8 D- h! `
6 u/ {/ x0 j8 m9 f' D0 s3 |+ V! rturtles-own[
$ w. z+ |* f) N) \# R/ v. ^& h9 L4 Jtrade-record-all
O: o9 W5 @% \;;a list of lists,由trade-record-one组成
" B( [1 N$ s1 s; C) d! `( Q6 ptrade-record-one* m& R1 G" X$ t6 }1 h5 H9 f1 ^
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
4 q! U& `+ \+ z
3 u6 _* `0 }8 S& D& c2 e+ h;;[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]]3 f+ p; m* Q) H; ?6 r# Z0 C
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]
4 O) X$ c' t- \" _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- m9 w" ]5 y3 `0 e5 C" i
neighbor-total
$ D% c( w5 x' k, [* _5 {% ?;;记录该turtle的邻居节点的数目0 F8 K# v4 l" J- Z
trade-time
" y* {8 z4 R4 Q$ _3 b' [;;当前发生交易的turtle的交易时间
2 z( g! w1 Z: B' `$ yappraise-give2 q) m# N* ~& s5 J+ ?
;;当前发生交易时给出的评价+ ^/ p2 z7 {. N7 y( \
appraise-receive
/ k2 b/ b0 x* k' t;;当前发生交易时收到的评价: K7 h7 \% L2 |0 E
appraise-time
" M8 m. K. o: a0 F9 h& |;;当前发生交易时的评价时间
6 V* P8 y! c. ?& M9 Flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
, x% Q" @# |9 p: ytrade-times-total2 ] K5 l( Q( o0 t$ q, {
;;与当前turtle的交易总次数0 Y3 Z' U+ X: `' E* G: ]
trade-money-total& A2 g' g$ h' Q5 h
;;与当前turtle的交易总金额
. K. L" \2 w# g/ @7 Slocal-reputation7 Z# q' t6 V4 _6 D: F
global-reputation
) @, l0 {' i: p0 t$ x6 e/ Ycredibility
' E2 x( \/ y6 Z, D) N2 V;;评价可信度,每次交易后都需要更新( ?* s+ n4 f. g9 J
credibility-all( J. w) X" d( q' i5 b! C! @
;;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
Z: [! X/ |4 o- L
# _# U$ G( \, K* r) {;;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 P: R# m+ [0 u8 p1 T& s* jcredibility-one2 x& a3 V* y W9 E; J
;;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
: P. W! [3 w) h" Lglobal-proportion
4 K$ N; o# @! Q4 ccustomer
# N: A7 v# e3 T+ ecustomer-no1 y# t0 Q2 ~6 B5 D U
trust-ok
8 {" n9 ^+ h3 F2 ^7 Vtrade-record-one-len;;trade-record-one的长度
1 E* t1 Y# \8 V5 f: \& P]
. v" y$ Y2 I1 u8 c5 c+ r6 v6 ^4 o( D0 y6 {& x
;;setup procedure
4 Q r5 G8 J/ {; C! \2 ]' Z+ \. { A+ _% B0 {; n
to setup9 c5 |9 z) ^6 N' |4 l, A
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ca
V; S" L/ C4 d2 F0 A, p0 F" a2 R( Z9 ^8 N
initialize-settings
2 ^( Q2 O' |: |+ t0 S7 i1 _
3 t7 F. C) y% n: }) @crt people [setup-turtles]
?3 h7 e# a$ H1 M
3 S% k+ q9 h* @/ e% g4 I& zreset-timer
4 c( ]1 @' }* S) T" ?1 O) L2 \3 Y D( Y6 A
poll-class( V/ Z. w. n3 `9 A& w5 G" @
$ a1 b. L$ h0 Y+ k: y7 usetup-plots
- G7 W* m3 I6 k z* @( l
# q |( s* k0 {. k6 C7 ]do-plots
$ O+ ], K: i( f5 Iend1 ^+ {4 j- p( D K! J L% y
# H$ D- \; k# C. ?" F6 J( a8 n* w& vto initialize-settings+ C# E* `. d5 @& ^" I! ]' |1 l
1 v* G( E; w/ ]; ^2 uset global-reputation-list []
b4 ^7 o8 s @. z; h' y" k
! s& _( F5 a, ? C J& y' f" }5 bset credibility-list n-values people [0.5]' Z2 f* J& q" z; W' v& v" C0 q4 [
6 z$ L3 e x6 Jset honest-service 0" ]) ^- h9 Z. r5 S( G/ W
& z: V( R% I# n$ v, j( m) sset unhonest-service 0( L; f* P2 Q& x& E4 W
9 A! |, t& k* U5 Dset oscillation 0
. L. I$ t8 b: n/ `! r P% j
( @* Z& g, W5 P# P' w& ~6 v( iset rand-dynamic 0
' E0 n7 ]% V0 J3 ]1 Z! Aend
! `8 n! r2 }; z" } P7 d% d* c3 s- e7 W( ~1 ]! G# W
to setup-turtles
* F& r! R7 |4 v+ I' Jset shape "person"8 Q2 s3 ^7 [9 J; b9 d& G
setxy random-xcor random-ycor
+ v3 w# l2 @/ Tset trade-record-one []
1 `+ u5 ^7 H c8 c4 j. t' n8 P0 d
5 Z F; H3 I U; N5 v- k" ~set trade-record-all n-values people [(list (? + 1) 0 0)]
: S. V$ u0 M3 D+ t( E3 R6 {* i
set trade-record-current []9 b2 d# [ B7 a4 V! F
set credibility-receive []
8 T6 j |" z6 g2 r+ n# P( }9 oset local-reputation 0.5+ @* T9 b. d2 [
set neighbor-total 0
6 w+ r; }' h3 P* e* `/ e6 O+ X+ wset trade-times-total 07 ?9 O+ | B J. c, a. n5 R
set trade-money-total 0
, u* f! L1 ^& D$ Jset customer nobody$ t. Q1 j" g: [( g, N
set credibility-all n-values people [creat-credibility]
$ B% c$ D z2 b; M) j5 Qset credibility n-values people [-1]9 T# Z2 H# p) f! `
get-color8 o4 G0 W h( H8 _% ~
; Y' E: y* z) f' V0 B0 \% @& |
end! b, y) d7 o" }+ l- w d8 L' `5 e
# s$ ^, e/ g. L+ o9 X7 _to-report creat-credibility
$ E4 e. w$ Q3 @0 Breport n-values people [0.5]
6 [: g& r p* n; S& w7 @% {end3 N1 z- e) Z. E. C
7 e! }( m' @& D3 I) |
to setup-plots
" K/ S- }; B- j3 a6 g( }
$ S+ b V" S v- U6 t# vset xmax 30* S; x( j1 H( V
7 a9 C ]- q- R) B8 v
set ymax 1.0, m0 h# ^ P) E) O
9 ^/ c+ d9 ?* Z7 lclear-all-plots
. a2 @3 g3 j. N/ \
7 u. _* G+ `) C0 ^1 Ysetup-plot1
- k" s! z7 k+ ]$ s$ i0 [! l
/ {: \9 U! p9 U9 h% X/ Bsetup-plot2 ]0 S4 W% S4 o
2 ^% y! |7 o. c/ o4 Bsetup-plot38 q, m9 ~- C3 m2 q; S2 i2 {
end* k4 p! r3 Z* Q5 H+ B( j# I& L
3 f" W1 ~; l! P1 r;;run time procedures3 N. o% b x8 s0 k8 p
3 u% n& g L1 i: z/ Z% kto go7 W( S5 ~$ u# P# n% s1 \
, k# T- H& |# J: W( b! ~3 y ]ask turtles [do-business]
' z& k0 q, L( a# X4 x& g; hend. O& L" x# A3 l% i% L
' C( e4 _3 f. ^0 V& y) `to do-business " O- j" x8 r0 H* {& q/ k4 Z) w
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3 W8 h; K4 |+ a+ R8 vrt random 360
/ h/ s* ] q: U9 E8 w! E8 T6 @7 y0 A* ]% N4 F# D" P6 v/ Z
fd 18 l2 f" E! N) {+ k6 j7 I
9 M; D- ^ v9 G9 C3 T
ifelse(other turtles-here != nobody)[) G2 |. k' f! @ R5 U! W% [
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set customer one-of other turtles-here/ f4 W B$ R+ P. Y% i
$ X: N- g# `- h# i" C; l;; set [customer] of customer myself
8 u0 @1 B: i- E. }% Z/ B d
/ x: I7 {& ]! V) A6 a" rset [trade-record-one] of self item (([who] of customer) - 1)
, N P5 C* Y) L) L[trade-record-all]of self- S7 |2 l" j) @9 k# ?: G+ B( g
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: N% k, m4 Q$ n
$ d, m2 G2 |+ |% X+ G3 T @set [trade-record-one] of customer item (([who] of self) - 1)
2 d% \' G' C6 S9 z8 z; F[trade-record-all]of customer
% ^: S0 ^2 T& y( O/ y" B3 G2 i% i4 o c* W- G
set [trade-record-one-len] of self length [trade-record-one] of self/ o5 v J( r) Y$ O% M, a
: p* l8 m ]8 W& B) l" A/ X! L3 [& ^( Sset trade-record-current( list (timer) (random money-upper-limit))
! l5 w! w7 \" x3 G" D8 h2 W" ?% U% o- i* E) y
ask self [do-trust]* }; n8 r$ [' s! A( L3 ^) L
;;先求i对j的信任度
" {7 F/ d! r' v& W/ _) y2 O
' x; `, H/ g! u& i, Cif ([trust-ok] of self)% Q) L7 Q7 n; Y7 S
;;根据i对j的信任度来决定是否与j进行交易[/ Y9 t5 R0 _# |; R
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; ^$ T1 v8 r" f" ~
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[
9 l$ J% B8 b* ^0 }8 [/ D1 {* R, m7 l0 Q- H; g
do-trade3 X2 S. ?; D, [. v( i+ v) u; @3 F
/ Y4 e+ `. {/ I/ v
update-credibility-ijl
6 |, y$ Z$ f# y
u" c. p) [" Q1 s2 g5 P- k: \6 l5 r9 Dupdate-credibility-list* U. B- j0 P5 h/ ?; t. G; o( X# l& k
+ E% E5 K$ F. z7 q1 T8 K3 o8 T
& n; R P! d/ i) G+ G# r d# f2 d
update-global-reputation-list4 O6 x0 p7 ^2 o( Y
& i* q4 O3 d& T% P
poll-class
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get-color2 n: d% y0 G3 ?- Y. t- E
, [ |% |! L2 D]]2 ^- O% f" f2 H+ k @+ w- x. n; f, r
9 T. T6 C& R1 I6 }1 S3 f- T
;;如果所得的信任度满足条件,则进行交易
, L' Z1 K. _* K, h) d- E$ v+ I4 w
[
$ F" S$ i; p0 _3 ~0 m- @* S u! ^2 t' S$ V7 y9 c
rt random 3601 P1 J+ {' T( A8 S6 k
* U c/ m# r( L. |7 T$ u; Vfd 1
, |7 j: q8 G8 I: p7 Q$ \
' a, E% D! Q/ d8 D. ^; {. _]
% x1 Z' _2 U" e! E7 m: C: E' r) W
/ X( g4 U( f/ G5 ?: iend9 P+ [8 |, ?' @1 u& p
3 U2 `' F4 C# d& G* h5 Q
to do-trust
) ]* [3 i5 ^3 H- ^* ?7 f7 H" ~set trust-ok False
; q! z, S4 t/ q1 x8 h9 h8 q
# v9 v5 \7 [3 j
3 ~6 K/ Y- s0 k$ }let max-trade-times 0
8 B2 y q; ?9 h8 x* D0 zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 o+ F% F' V/ u; w+ | E
let max-trade-money 03 ~8 K4 O$ w1 K9 w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 z) A8 v! ~0 J7 b: P, }& 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))" U1 i y% L9 ]+ ~3 Y; A0 g
5 P% q f( }$ s R; W9 g5 y8 g C4 p" s
get-global-proportion
( _' J1 Q4 l6 S } Q0 ]" Dlet trust-value
Q }# g; k; W8 N# j/ Dlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list), \- q; B! X. ?* a% m$ r' t; j# u; T
if(trust-value > trade-trust-value)
7 i; _4 u: i; I[set trust-ok true]( U0 \ [/ u# U4 U& _
end
; a& b5 I, q: [4 U% f$ W$ D' V1 A' b. ~6 Y% f; G
to get-global-proportion4 R4 U3 {% }: h* ^; [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 K3 q! Z# r& H3 f0 y' \, W
[set global-proportion 0]
8 R! ]" h3 {8 i& V; a4 [[let i 0/ g9 X, A6 `2 O* C( J
let sum-money 01 d9 O! S- |) X8 S+ a- s/ `. }
while[ i < people]
6 E, C: j# O( g5 G9 M3 D[1 f g# A( t% o# y6 Q' Q- Z: A
if( length (item i
, I( f7 c% ?' i% }+ D[trade-record-all] of customer) > 3 )7 } B; H3 U7 X. k) ?6 \) b
[
. s9 j- v) Q, [+ nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 u3 Q' z! B, x# H; J
]( J" p' L; d. l
]' Q" J) H- V/ h! I
let j 06 C8 W9 A3 k7 v! L% W
let note 0
! ]0 c0 D7 p6 _& l' F% Y3 a, fwhile[ j < people]
e* Y- W" n# P% m2 v: {3 D[: s5 l/ U% q3 A0 c
if( length (item i
2 |, r. D4 _* {: `$ i[trade-record-all] of customer) > 3 )- f+ k' w7 j* T5 Q. B9 D% O4 @9 b/ ^
[' P" ]% X6 G& S2 S( l, l
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ L* }2 f3 o/ B& @+ J
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 R! ?$ @/ A' J4 r
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& O3 r4 S' @# B, D& U
]$ W q7 C$ Y4 X
]
8 B& `5 F5 L. S9 f. w Y6 n; r$ lset global-proportion note
* k( Q; C" a- V2 F: c+ E: F9 B6 Z]
6 }! b2 s" O. q" Y: @1 t1 b5 Nend* L# l4 @0 @& y9 q7 E8 E9 t
& G2 j" _ v8 ato do-trade* |3 X* R& l1 S1 r& S
;;这个过程实际上是给双方作出评价的过程
Q3 _# x& x& Y, Y; _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# S# k5 J8 u3 B6 S4 O& V. _* O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 E! G$ [; s$ e5 u% \& g
set trade-record-current lput(timer) trade-record-current! }* M8 z9 n" j7 V
;;评价时间 U, }# A5 Z8 @# s/ X- a! ^
ask myself [
6 f4 n- p) ~2 tupdate-local-reputation% M7 }9 j( m" M
set trade-record-current lput([local-reputation] of myself) trade-record-current* G/ T2 h1 m0 K0 [$ t& J
]
4 ?! \' @0 ^* e: j9 J9 v, i0 p9 ?) W4 Pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' w# V1 R a6 ?
;;将此次交易的记录加入到trade-record-one中4 B- y$ B& {- s+ B; d6 C+ S2 h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) b) H& l) f1 I+ j4 }
let note (item 2 trade-record-current )! W: I% v/ r" J8 y; z- O
set trade-record-current
2 l$ E, d( f5 K8 Z' v(replace-item 2 trade-record-current (item 3 trade-record-current))' J4 s* B- L% \6 S" @& p* p' m
set trade-record-current; S1 G! J. w: G6 g& F" X
(replace-item 3 trade-record-current note)
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$ S) H% k' [- I- I" z& w4 R# T6 n- W
ask customer [* ^6 j+ }4 ]3 e) f( B0 y
update-local-reputation
3 x1 T" `4 \6 v# f3 w2 {set trade-record-current: Q1 d- |; }, ]# L
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * n4 C& ^9 W. w" [3 Y* }# M
]$ W+ ?( w* ?: j M2 i; {. D
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3 o: J7 D, V# a6 a
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) k3 x7 J( Z/ K& D4 _
. p6 b3 Z8 Z+ Q1 }- C
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) ?3 l ~. Q! Z3 q
;;将此次交易的记录加入到customer的trade-record-all中& U, B" m2 D% v1 s3 q; g
end
1 s) n* H9 G( f0 d1 Q u9 {8 r
to update-local-reputation
2 E3 Y) D& h3 F! qset [trade-record-one-len] of myself length [trade-record-one] of myself: C u0 ` f' V$ ?7 I
+ }, M4 l9 C& N' L$ d
s6 G. r. }( v0 \
;;if [trade-record-one-len] of myself > 3 - W* h4 B* C! C0 N/ h3 V: P( h
update-neighbor-total1 L# Z) M3 N% w) l3 S1 }9 [7 F
;;更新邻居节点的数目,在此进行
) a( Q3 g, J! r* }" |: c9 p' z6 Rlet i 3) {& B4 W- I) |
let sum-time 0) ~6 t9 b( e+ E+ s9 H; ~
while[i < [trade-record-one-len] of myself]0 ^. [8 Z @4 w" H& b8 R
[
" e. ^% g/ ^- f8 e' Jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! I' j" B: Q) D# a/ z
set i
8 x: G" n% s" u- l) F" @6 ^7 p( i + 1) ]* H P3 V, N: y
]/ G# f3 ?. {! t+ |% L- o
let j 3
& M. G5 g0 ~7 a7 \let sum-money 0# K& R G/ D$ c: ]
while[j < [trade-record-one-len] of myself]: C7 g& A1 t# T5 n' H' V
[$ A; X" z) J5 P6 }' n |* f+ l
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)
( ^* V3 t8 E% |, l- Pset j
1 A3 ]# E6 T1 B l+ P2 m J( j + 1)
" C F8 Y4 p. r* `- @]
) B2 [4 \7 R% o1 o; a5 Blet k 36 x' U0 C; M+ M3 B5 t
let power 0, x/ i1 f% t. c3 z
let local 0- k5 o6 t; _9 V7 n9 y4 x
while [k <[trade-record-one-len] of myself]1 h J) @8 ?: h( D. B& ^& P% C
[3 |+ B( k$ V" Z$ A! N/ i( A5 `" ^1 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) ' E8 k3 U" x* I3 _) ^8 i- U
set k (k + 1)
; [# N8 L& K! X], I# I) s9 O3 D9 t1 Y4 c' x
set [local-reputation] of myself (local)) B" u9 M! b4 l/ f6 n, ~
end' z5 @$ L( J1 R1 b- r/ T
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to update-neighbor-total+ E4 S& T1 K( K* f7 d
7 S8 n/ B9 y5 y* R0 R1 Sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* F$ I3 _* n0 X. t" |) i8 N8 ~5 G7 a* z- J" m& v
& n' `9 x0 b& M. G! ]. D& G& w
end) T5 @3 D/ C8 c. l% S
3 o: O) r( b6 g' o$ O, l2 ito update-credibility-ijl 3 u) {( h( w. K' o
6 `9 n, N8 E5 a- X S! E3 I2 `;;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。9 x: h+ F. y' n g1 D8 ^% h" f
let l 0
# Z: W# e) u+ w- ]: U' x/ S1 Lwhile[ l < people ]
" L9 {! Y5 J. g- z;;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
: t& b& l; k' _; f/ w[
& ^# N& h; s' C6 E$ I z8 _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 n/ t1 p! A/ Z1 Rif (trade-record-one-j-l-len > 3)& ~% P, a6 e) h; j- E! 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
7 E& n4 Q2 J5 \1 T3 B7 tlet i 3
& {1 g% g9 ~) j2 slet sum-time 0
$ R) `( t0 u" Z: |" l1 M v2 U/ Mwhile[i < trade-record-one-len]6 X' T8 m& Y( Q1 K% T
[, [! e4 p: y. k, [+ P Y
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: L" F2 W9 V* iset i, J! q7 x- M0 s( c' S
( i + 1)
. r7 V& z; i0 E- G f' _2 ~], |, |6 g# c& F- A
let credibility-i-j-l 0
E) V+ {" u' o! N1 D7 X: |;;i评价(j对jl的评价)
( t! x7 K0 E& Ilet j 3
6 v. w' F+ L' u3 Mlet k 4( W1 I2 E: ^& ~* T( A) J$ r8 r
while[j < trade-record-one-len]
' k1 i7 B/ N) m9 a[9 B5 S' P9 p7 N. \/ p5 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
$ @9 t8 l9 z) d2 d Qset 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)
& \! v" {; q9 _. Uset j1 r( o+ Q( e' ?' o& w( w3 i' N. { q
( j + 1)5 Q- B1 C4 {, w W- R- e4 R
]
[/ \- Q1 i9 ?0 E* p( Hset [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 ))0 ]" O- q& H% Z8 b5 z8 U {4 v7 P
4 F- Z" \8 G i d b# u* H. x1 O$ T0 a- w0 Q9 l
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) R& P6 y0 B6 W# |+ B$ ?;;及时更新i对l的评价质量的评价
, W0 r1 m1 ]8 l; V) C- aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 m2 Y. u# r$ q+ l7 pset l (l + 1) @* ~4 l0 X" R3 K0 g0 w
]: k8 P' L. ?8 E& s7 w+ J
end, N4 z' d0 F7 Z) N9 k
/ W" o/ p$ Y* V6 ]
to update-credibility-list( e5 L2 P2 k2 G8 m- J1 E
let i 03 c5 b% o: [' K2 }# u
while[i < people]
, m9 C) P. M* s J+ }: f3 H% q[# D" D ]3 S, E' d
let j 0
' b/ p/ b, y+ m( v, xlet note 0& N: s5 W4 {7 _
let k 0
9 c' ], j0 o' O, ]8 P;;计作出过评价的邻居节点的数目3 P4 Q$ Q& N5 @ o5 W$ X- R) Y
while[j < people]. k1 a2 ~/ b$ I) G
[0 M' [/ b. z+ r3 _! f
if (item j( [credibility] of turtle (i + 1)) != -1) [- `$ I- N# P& C9 o6 h
;;判断是否给本turtle的评价质量做出过评价的节点
1 n* y! b2 R/ ^$ A2 Q[set note (note + item j ([credibility]of turtle (i + 1)))
! q4 o" n! P( A8 `;;*(exp (-(people - 2)))/(people - 2))]
' y" |/ x6 p# R/ I/ y: ]set k (k + 1)
3 O1 D* k2 V" W2 g7 L]
/ ~* E) ?: D# B/ @5 [ L% iset j (j + 1)
0 ]8 X) f; \ z/ W]4 z/ T; f) R0 v
set note (note *(exp (- (1 / k)))/ k)
5 ]; _5 p4 V" `# r& ^& N" }set credibility-list (replace-item i credibility-list note)
4 Q5 q. t0 R/ c& v. g$ pset i (i + 1)* H6 J. a5 q! c6 Q( P' A- z
], x8 B K L2 _6 b
end
# F8 B" C" _( f' a" I% f* O3 h6 e$ k7 r
to update-global-reputation-list
6 g1 W6 n! F: F) D2 ylet j 0
4 ?0 v9 t% O) Hwhile[j < people]8 t9 }8 D) y ~% H3 A9 ~
[
' v1 P( N6 Z) v- Z e& glet new 0
+ R& |+ c: e1 \: y;;暂存新的一个全局声誉; h" o" n( D! o4 Z) R* ?
let i 0 h, Z! U: _" G6 s
let sum-money 04 K& v1 J5 N1 }( D1 |- l) Z4 W
let credibility-money 0
1 G5 T& @) S' U5 e' E. v) Y3 S0 Ewhile [i < people]
# ~9 u3 }" a# O! B) z% [$ l$ j[
7 `6 v% \: ~' O0 z& Eset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( {" q I, Y* ?. F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- G' W! x C# N9 c H7 U9 X; tset i (i + 1)
& `% J1 _' F! Z, h]1 P7 R, o! T' V
let k 0
' M) M# r! e$ H: K) Alet new1 0& o; J; f& [& F8 n d+ t
while [k < people]
! h8 ^/ L) P( K2 A& P[9 W0 L: x. R8 U6 i P% 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)
2 a4 q; V: I; [set k (k + 1)8 A( w8 A9 H0 M
] n* m! g+ v$ B u+ U
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " ^" g: L; j- R9 k/ R& e- C
set global-reputation-list (replace-item j global-reputation-list new)
1 \$ o0 h3 t& u1 i0 s' O: kset j (j + 1)/ I* D2 n5 n" y9 R$ D- L7 ?
]' D ?& s b# P( b* ^) Y
end
1 j$ n( d9 r: L p2 |! K' l4 N1 v" j/ M$ L: p
; ]1 }0 o8 `5 S! E% {* O$ K, s* U% q/ r/ n# u/ }. m
to get-color! a7 v& F) } g, z% u
: B' V& t" J0 P; pset color blue
9 R L( h9 e# h; Vend- g! |3 b( G; E- _ S h
3 K2 o# Z4 }( p8 c9 }2 e% u6 qto poll-class
5 S- {/ R8 c6 N7 E( Vend
: ~! j" n2 @" O$ [& A" S5 k
. y* q* |! ^+ s4 H6 dto setup-plot14 |5 c' B: S. Q. P4 u/ {
+ c6 U, M5 ~: z$ Y' P! u/ kset-current-plot "Trends-of-Local-reputation"& }- V, G( C: x4 l$ y6 X
% B6 I, @. g* T+ P2 z- @
set-plot-x-range 0 xmax
# |$ y6 W* y& b! B5 ~7 q; Y& D/ i4 L5 r$ y- Z+ C
set-plot-y-range 0.0 ymax
3 u; l; k7 ]2 H8 }, Gend! @, R: @6 ], t9 m# [/ u
9 Y8 D8 |6 d( s: G: i
to setup-plot2
" A W% N# k- M" n
9 f: X7 P: W: D7 ?. S4 R9 _) rset-current-plot "Trends-of-global-reputation"
: N2 {& Y6 ?+ L: @& T5 @- R8 {7 V, w7 W, j
set-plot-x-range 0 xmax
7 T2 ^4 T# R- a1 p+ @! ?9 ?
$ J, T; Q* @8 tset-plot-y-range 0.0 ymax% x+ y9 w4 i: m2 X6 C
end
1 M1 `4 U1 ~+ j# K0 c* k
; v! x7 \& b7 ~2 fto setup-plot3
" l( W2 _. F s. S- q2 l" [7 W7 D& ?( I/ D
set-current-plot "Trends-of-credibility"' S: R* M7 w/ ]+ E2 b y
1 C f l2 I' N0 b2 L. o) e: d
set-plot-x-range 0 xmax
1 v1 h6 O6 G8 M, Z2 ?# \/ }5 C) t4 v" u( q5 A7 P' Z0 m
set-plot-y-range 0.0 ymax
6 i# |4 X, p0 _- e& \- j& x9 xend0 l/ f2 l+ {$ z: R# r$ ~( i
0 {0 [1 z7 u+ {9 {! j& eto do-plots
8 g5 m, ` r; c, [& \set-current-plot "Trends-of-Local-reputation"
2 N( V, |# R- d. z( S1 O+ cset-current-plot-pen "Honest service"9 F3 v& X% I0 X; |3 ]
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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