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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0 K7 d m/ O" ]% d! T$ N* \
globals[% M* C: A4 p' \$ B4 ^
xmax
" D: i; y3 p+ n# fymax
! r, i- A. O$ Y% x- t# C6 mglobal-reputation-list- D" E5 X }" ?. M
7 ]- w% c1 H' g+ | W9 D: S
;;每一个turtle的全局声誉都存在此LIST中
% c. f* x5 A; z8 f5 I& V E0 B- n6 m! @$ Ucredibility-list+ L$ L2 |* _/ F& d$ {6 L
;;每一个turtle的评价可信度
! Y) x2 S$ q& G, jhonest-service+ j! Y! c3 L: U; m) O# \7 A& j
unhonest-service* J3 j9 g" d6 w; T* n8 B
oscillation
# P: u6 t& ]8 I9 Srand-dynamic
7 E" @, P7 e. e/ H: |0 I]$ q* S$ T1 z/ y8 C. P
4 v$ l7 H( G3 w- Wturtles-own[
4 d% p% I. T+ D( Q; Y0 _8 A* H! Etrade-record-all1 \( V7 H( a& r2 D4 S
;;a list of lists,由trade-record-one组成
8 c/ N1 ]5 V# Z3 ^: W6 etrade-record-one: B# P' Q. [; J( e
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 O2 P0 p2 E7 `9 d) Q
8 D9 Z ]6 w' W/ i1 u' G) Z' a- e;;[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]]
9 a6 U, n4 [* M+ n e; rtrade-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]
/ r2 _+ e9 F) x* ~4 tcredibility-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 c' @; U( ^3 G0 ]
neighbor-total! e$ }2 U- u& p
;;记录该turtle的邻居节点的数目
- M9 V& H8 x* Q) x6 Mtrade-time9 W) r+ ^' e0 G. R) d+ k
;;当前发生交易的turtle的交易时间1 L) [. c. S6 H5 R; c$ Y9 d
appraise-give6 a! T5 z" Z5 {- q& n+ \
;;当前发生交易时给出的评价
: \; q7 _" V0 Vappraise-receive9 R9 ? m6 F- ]/ f* {- t
;;当前发生交易时收到的评价& J& L2 p) h% v/ P3 P1 `
appraise-time
$ U* M+ j" o3 ^7 c% {5 x4 q;;当前发生交易时的评价时间! S0 I% B- Y9 W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 a/ E' J$ Q6 Y, v3 e
trade-times-total
4 l$ I, z5 c) B;;与当前turtle的交易总次数
# ~- Z, a" ]1 ctrade-money-total
8 M& J, E, q# S;;与当前turtle的交易总金额
, F1 ]" a# m$ i0 z5 v0 L3 y: Klocal-reputation
7 L! s8 ]* ?. U* r' e+ sglobal-reputation
! e) g3 m, L3 N4 z+ Q9 Zcredibility. g% N4 L, |; n( w% b6 \# V
;;评价可信度,每次交易后都需要更新
8 ^; k9 \1 G3 [credibility-all
+ V: X3 Q" S5 D+ E% F- u;;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
$ c- Z1 n& l( A/ _/ t: s# ~& w- [8 J8 E; N5 o: L
;;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
- L: Z; G$ [2 Y6 h9 u4 l$ G$ o5 Q! wcredibility-one
4 t7 p5 _( Q3 W+ J1 E- 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
, `3 g' i5 C$ x+ D$ cglobal-proportion k/ h% h4 k2 L. {' L
customer
! X7 q2 v9 j% c3 ecustomer-no$ A9 _: Q$ ]/ C* w! p
trust-ok
( Z, K0 |! v8 \3 O2 |' Htrade-record-one-len;;trade-record-one的长度3 Q* p, I* K# S
]
8 [+ n D+ ^, e4 W# Q
9 r( T' n3 [- K$ m;;setup procedure$ P) v6 O7 B! N3 o: R
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to setup! f! O( g, {9 l# t" ^# ?! d
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ca, o7 O. @* `1 a' v
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initialize-settings8 i/ e. Y1 f0 F& r0 w$ k
' t! _- Q5 Q0 S2 @crt people [setup-turtles]
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reset-timer% C5 I4 k" b5 A5 o. @: D
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poll-class
9 x: [+ ?6 ]: y% y) n
! F) n2 H' b5 o! Y% usetup-plots
2 H7 O* t$ s9 O* v2 _
, A$ j W, P4 x7 T1 ~do-plots
2 X* U# k" O9 k" T* rend! ^$ E( L! {; |
5 ^5 W. c: _6 z _' Vto initialize-settings
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7 E' N/ _6 c2 T: a. nset global-reputation-list []
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: |3 y" T& Z R& @set credibility-list n-values people [0.5]5 B$ \7 c+ H; s( G$ i+ n
" x% ^% q& o1 j: Q" @9 r, p1 N2 Zset honest-service 0# k0 O! {& u, g# |3 n- ~
9 o. \* p" Y" m# @/ x' lset unhonest-service 0 I) w: R4 \, v) G/ r
5 C! D, v/ a9 G8 O8 Y! a# |. |set oscillation 0% q9 r# F) V/ ]/ R3 M# z$ y u
8 A* Y3 y0 @4 J9 {8 t
set rand-dynamic 0
+ f: F* D+ M4 @) @7 B L1 Bend) o" J+ c" g+ V- c* r" \- \
" |7 r6 i' b; ~' V+ n- B8 Nto setup-turtles 8 i! W, i& G' F. Y, f% r- w7 H
set shape "person"* q0 n- @4 S* ]/ ~
setxy random-xcor random-ycor
$ d, X+ Q0 d4 A& c2 |set trade-record-one []2 |, L( }7 y/ V4 G* V- ?
& p9 V s) d- K( y; G% S, gset trade-record-all n-values people [(list (? + 1) 0 0)]
7 l- }2 d& M1 K! @ j3 C- i
. f0 m' N5 i! ?9 m7 r7 V& Dset trade-record-current []
* E+ A% R8 M4 p) Q- O5 bset credibility-receive []$ [ `( ~+ w) j; H( \
set local-reputation 0.5" G, h3 D8 D, V0 P% e: i8 J
set neighbor-total 0$ ?0 g4 J1 H3 C, M8 s
set trade-times-total 0
]; a: o2 l( A' L( uset trade-money-total 06 w/ g7 A1 h; I3 v0 u, J
set customer nobody* W* h- U) y8 J3 Q: B8 u4 k: A
set credibility-all n-values people [creat-credibility]
4 r0 X' ~# M( s) K$ eset credibility n-values people [-1]
* E; m1 K4 D, S' ~8 ~get-color
# w$ F$ V/ g3 Y" _0 h% g+ t- }& z
$ V/ {, d4 m$ i7 R# fend. A. l% h5 ^* ]- ~3 f0 w* H. a/ t i
8 D8 F$ ]; [( i7 E3 `to-report creat-credibility; ~7 }; A0 ], v, y
report n-values people [0.5]
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to setup-plots: A' @2 p- B0 A6 O8 H8 A7 i7 M
+ a- n4 W, {- Z& i% O
set xmax 30* _3 y) b, S+ c( h; F6 o
1 O) M/ C. K4 D) d5 {- z9 y
set ymax 1.0
' P$ T) j7 b7 p' b9 Z% |8 e9 {6 |. B% E8 G8 _" Y) o
clear-all-plots
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setup-plot1- X4 F6 J9 D/ V, |! E; o- S
/ k) l3 T6 c; O: X( l6 csetup-plot2! L6 a$ S j" d& W
& ^5 z, `; f9 o3 L+ R% x
setup-plot3$ @! f. ]& V5 [. t/ x
end
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+ A- J1 e% t. {- C! O9 i;;run time procedures5 |% k; u% y& k4 @& y6 m5 |
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to go( h) J) l1 {% @- ?( o) v/ l- t
2 e) j$ f9 }0 Mask turtles [do-business]; X, h- a2 V) a
end7 m9 I* o+ ?( C6 X3 ^7 a
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to do-business 0 m# g, ?3 ~0 y6 q
+ Z1 a) [& E0 [( i
, J# Y2 s9 k/ ~# R1 O, }' e
rt random 360
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fd 1
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" p6 X% x2 G0 h0 @, Mifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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( n; Y v& r9 r8 ?) t;; set [customer] of customer myself
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1 f3 O% s( I" U2 Xset [trade-record-one] of self item (([who] of customer) - 1)
# e& f9 O0 G) C/ b[trade-record-all]of self
3 ]- U5 n' }% D;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
$ s% G2 h: F- E[trade-record-all]of customer6 y# j, f; T B0 j" z% r) ~! O
' o A0 W3 q0 v7 E; h9 _# L8 t% @set [trade-record-one-len] of self length [trade-record-one] of self
1 B3 a; ]) Q& u- V) p! _# }4 N+ k3 w7 }6 f7 x# s
set trade-record-current( list (timer) (random money-upper-limit))
@% o) n2 I$ g( W2 r5 g" Z! p1 p2 s1 t- N0 d7 X
ask self [do-trust]5 L# e! \& _5 c
;;先求i对j的信任度" v! h; d" ^' _
w4 x1 w- U0 [" Z/ Mif ([trust-ok] of self)
o7 f8 x& I1 ?0 j;;根据i对j的信任度来决定是否与j进行交易[
# N$ n. Q O% Y( B: fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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$ k8 S8 w" c: Y/ I: M) {- r& S& |
do-trade
+ [2 j/ n) _0 F' ?2 T! }- v
: N! d3 O; I' D8 K. xupdate-credibility-ijl0 N0 c7 h" u% z# [' A8 l
) m5 L! D. N& Rupdate-credibility-list8 w0 I+ @0 F: p) h3 A5 n
3 F/ [1 N( j1 g. j' F5 }, t7 ~+ b/ u8 M# Q- Z( a
update-global-reputation-list+ B/ d( F3 N* v8 x. p
# J. x, q6 R" j1 \- j* R5 \poll-class. J9 M# F1 Q3 ]2 ^2 x3 r; n
4 l" D" A; D/ H4 P4 X9 t& Mget-color
/ n z$ f6 y1 v x( U9 f% Q% F! S0 f+ n# g: @ o) I2 w
]]" H9 M( U! y9 {- p/ o
1 W! X" k3 J4 E3 M9 i6 V3 j& G;;如果所得的信任度满足条件,则进行交易
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4 k% ]! `, ` prt random 360, P _3 g* b0 y3 S+ M$ J
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7 F5 F2 G1 o* e% o8 L]
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end [* J$ ]: u- @ }- w
. b3 Z. \0 g8 Cto do-trust + D$ H! g& w$ C5 b# }
set trust-ok False9 C* \+ ]0 |# S+ I- C. V' \2 X
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let max-trade-times 02 M* W. l" s/ l5 q+ `
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: X( F$ K% U6 t; J( F! T
let max-trade-money 0/ `9 @* x% y! D, `8 S- D1 T5 Y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ T, r) k. n( r1 z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 A/ t' L @, B/ Z3 B* H
: |! |2 W" Y+ O8 `% ]$ A( k( n! f; m; b) s% Z1 x
get-global-proportion) @- W( c; K' ^
let trust-value
( Y1 ]# Q* g$ T7 _( blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list), d; j+ V l# a+ l C3 l% F
if(trust-value > trade-trust-value)
% j4 h3 k' F7 d; S+ w. \, N6 T3 X[set trust-ok true]
4 W2 b# i2 m7 C; Zend0 u' l& s% x+ O0 P% M
! S6 ~/ w2 s6 |. ^' M; {
to get-global-proportion0 \9 T! @- h# i9 Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 {+ }- g2 r, n+ F# `& `[set global-proportion 0] K+ G& ?( i2 G; Z; W. J+ B
[let i 0
1 G- ?/ u% u% p2 {1 [2 `let sum-money 02 W* o2 F: s6 z, G6 q/ {
while[ i < people]
% a) s1 [3 q+ Y7 F6 |[2 U+ b: ?; e# U+ O" p f( k% G O
if( length (item i
' S2 |9 p+ H' A% D( C' C: p8 J[trade-record-all] of customer) > 3 )
" t, \, k* L. @+ d. C2 _[
( p h9 C. A; U5 {* `( _1 \2 |set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ |2 E% R9 H3 ^7 |9 J' R; F5 `% []
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6 w: X/ J$ }' q" |; _1 i. flet j 0
0 ^" C) M/ I/ Q% a, zlet note 0
1 p7 r3 R* T$ twhile[ j < people]) u$ I2 n7 G, I, e+ v2 x
[9 I) u8 \2 F9 w; I. N! R* o, b1 N
if( length (item i
2 _+ b( V6 F, D0 O4 P[trade-record-all] of customer) > 3 )/ l$ Y$ f8 a6 A/ J( D
[
" t9 U" v; F; \( @+ r; v" o8 Iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 S/ r( F- |2 V3 m6 `8 x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. E0 }+ @) O; E/ ?" [
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; }. _/ x7 B. l4 z: t) |]; C- K* T2 R' J4 y- s6 C
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set global-proportion note7 C" [+ b8 W! T9 `) b2 H
]" S; U( x# a( q
end
3 @9 P2 ?: C7 G" ?# s }
. M7 I1 u& {+ W! Fto do-trade
- Q, ~. o8 A& X$ c;;这个过程实际上是给双方作出评价的过程3 t3 T1 r* `& m# S4 G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& m+ E% Q- J- P+ B; C% `& x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# S8 [, Z4 l0 d* T, c
set trade-record-current lput(timer) trade-record-current% b, B& G( [4 a2 r+ b
;;评价时间
4 B/ x9 @3 H) r$ X9 Wask myself [" _- U5 u2 J7 q
update-local-reputation# D6 m! T) x7 ]8 J+ G
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# `* W4 Y' l8 d& N+ p3 H;;将此次交易的记录加入到trade-record-one中
$ p5 l' t" }6 z& Sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). D* N# }+ x7 d
let note (item 2 trade-record-current )
- k9 h9 P+ [5 F4 u. q/ q' D/ {set trade-record-current
$ E5 Y( i, n+ U7 i& e(replace-item 2 trade-record-current (item 3 trade-record-current))
& ~ n, X) _& ^) hset trade-record-current3 f- e( w- g- I$ U
(replace-item 3 trade-record-current note). P( y6 v* \3 h# Q; Z4 L7 P
' N- s6 \2 Y% w! k
+ P6 r Z; c) h$ }ask customer [
" E" D' c- l: a6 F _: g2 Z: _# A) q# ~update-local-reputation! E/ E# z! M. Q5 B
set trade-record-current& z- d# V/ J% k2 k' Y9 C. _
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: z Z% N3 [) w& g]
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) Y% i6 D. }1 |8 Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 p& H" @% [+ w7 }: u% @- M* x5 q9 C: L0 B* x/ y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 g4 u: H( G9 \3 N B- ?
;;将此次交易的记录加入到customer的trade-record-all中
. l# ^$ Q% j0 l, J0 f3 {- Oend
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to update-local-reputation1 o: m0 S1 l6 L3 r
set [trade-record-one-len] of myself length [trade-record-one] of myself
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) a) ~; x1 {* m' _3 P9 g6 Q;;if [trade-record-one-len] of myself > 3 ' u2 a. J( S8 `7 ~4 s/ |
update-neighbor-total
! u: F* l1 y3 z2 Y7 N;;更新邻居节点的数目,在此进行% Q7 D7 @- P; j+ P
let i 3
; b6 n* i: a1 u" alet sum-time 0
/ K- y2 h7 \/ M7 Hwhile[i < [trade-record-one-len] of myself], ~7 o" |: }# Y2 M
[
( D4 V# }" u; N7 l& m3 l. ~) Gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 e' L& B) _) j3 j5 `1 Y
set i0 d; F9 E1 ?: R0 p: Q3 L
( i + 1)- p' O- t1 Z8 n+ L3 f4 _% w, U
]1 B3 Q2 ~* { ~7 K
let j 3
6 ^4 ?- e0 g; D! Z' Blet sum-money 09 Q. g$ V- Q% X5 g) M
while[j < [trade-record-one-len] of myself]7 V" K1 P# X9 { m; t
[
0 K# E& x2 M. c" Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 y" K0 b7 `" }- q
set j
# W- I* o' C1 s( j + 1)
e6 X. _+ v3 O: f) m0 i$ E, []
( l3 x* t& R6 S/ ^# U0 Glet k 3: i# _. m' {7 R! j3 F
let power 0
; ~9 m' p% ^: X8 T) slet local 0
2 e+ n0 V/ r' I7 w4 ]% [+ zwhile [k <[trade-record-one-len] of myself]
' Z/ @2 X( T3 S9 H[
5 N7 ^% ]- O/ j0 ?+ oset 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)
% z$ J# B4 }; t8 P' w1 Z0 W% Eset k (k + 1)
, ~% K3 o6 c" r3 E) v: N]8 q3 p1 _) m2 G' f/ n/ P; `
set [local-reputation] of myself (local)/ V6 `! J# a" C$ x5 [' N% A" H
end
2 x: z; h7 R$ q
5 `% [$ [: R0 J6 j1 Cto update-neighbor-total
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' Z! }8 A) n& Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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8 K: d. A7 S$ ] Q! V9 ^* ]" S$ }2 Fend; N* H4 M% c5 c$ d
) H, O* L$ y+ d9 X3 u1 t9 Mto update-credibility-ijl ' F9 o& o, o) W, ?' h. n d
) p" \5 m' ^% B; J/ b;;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 v% ~2 N- e8 S" e+ G7 c1 p% R$ mlet l 09 _4 e9 P! n: [% S& W1 Q
while[ l < people ]
4 E4 O+ }$ K. }2 R;;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# |& J, T! O) P l' D' r/ G {
[
$ r; a8 [5 l# I% N2 E; E& Tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ Z' q/ ?5 O6 _. ?( X# ~
if (trade-record-one-j-l-len > 3)
" K! I# J9 p* j* A, o: Y[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-one8 Z C6 ^9 D5 E0 T; d9 E
let i 3- m3 d1 h3 r9 J
let sum-time 0' `: A Z9 t: x% H7 a* f9 V
while[i < trade-record-one-len]
, ?2 k8 N# [3 Z5 p6 s' X[
5 T# W) R0 X0 k7 w: x$ d: p- _ }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& j5 v6 `9 d0 @set i
: s) X) |! D9 a1 M6 s; {" K( i + 1)" A7 q0 N# j3 J8 e0 U
]# G' H$ x& n! _7 J+ W4 k0 D" m' p" {
let credibility-i-j-l 0
# ?7 ^( G% o3 f, m6 ^) |8 m" O;;i评价(j对jl的评价)
1 ~. X+ m2 A9 A! L( a& _8 zlet j 3
, z' g( D: h4 E5 mlet k 4
4 r2 S0 S$ T. M, Y' V0 Owhile[j < trade-record-one-len]
& c( q' L7 E" P' ~7 `[. o& m. z. b$ s, D9 e, R
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. f3 q/ R! T+ n+ `; Z& W2 c4 u) G
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)
, q0 q6 ^0 Y( vset j/ [1 i* ?# T" `) H6 ]: i
( j + 1)
; L5 T, w L) B9 t]; Z3 Z) m( t/ a
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 ))# W8 `" R9 v8 _$ B- i7 W' S
- k ?: u) Q; D4 A
. X0 q( f2 Y' c! y5 olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( L$ Q% j) y7 p9 w- L- F;;及时更新i对l的评价质量的评价
0 y1 @/ s0 F$ b% c3 D* I1 ?set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 G7 {0 R: t5 V/ \set l (l + 1)# m# ~( y/ c8 p- u& X/ \- ?) {( q
]
2 ^) C6 u3 D1 ~$ Yend. z* _$ m+ E" O& K/ H' m" n5 B
0 {; d" p1 Y' s0 b
to update-credibility-list
5 K" u' E6 x" Ulet i 00 Z0 \9 `3 _0 y; V( O" T4 K
while[i < people]
( n) p _/ ~) `8 x[
" \. M% G S3 ?, G6 j4 o. R# llet j 0# Q1 o: c% Z- O% }" k) s& S
let note 0
- m/ |* B/ G. d# O: H0 Blet k 0
& }# M G* R9 E1 y& O j5 Y;;计作出过评价的邻居节点的数目
& w8 e5 \+ q% vwhile[j < people]/ ~1 d7 N' \ X% `
[
5 O, t N% | H6 `, tif (item j( [credibility] of turtle (i + 1)) != -1)
! x! W+ R% T6 V: g;;判断是否给本turtle的评价质量做出过评价的节点
: D! R2 \5 m7 v$ H0 _6 x[set note (note + item j ([credibility]of turtle (i + 1)))
# }3 r) W) f! M" V7 v;;*(exp (-(people - 2)))/(people - 2))]
! b( t& \6 \) X+ nset k (k + 1)( H* g/ a7 {$ p5 u
]
4 ~; k9 h: ^1 ~: I% Iset j (j + 1)
l5 q1 u E% A; n2 x! L }; L]
4 D' l3 j/ J' I! z4 ~set note (note *(exp (- (1 / k)))/ k)
8 q: D* q6 x7 O( B" s1 z1 `set credibility-list (replace-item i credibility-list note)4 G2 V D. Y' K! X
set i (i + 1); d* W. m$ U$ }3 v. I
]# t0 L: w* [% w% [, H' K
end; V" k& @! G8 J1 y6 x- b
" i9 K; }: C6 E6 Z" i4 v7 S( oto update-global-reputation-list9 r2 C& |; A" P! R0 L; l7 C
let j 0! {. T" |* }; m( X7 Z
while[j < people]
2 w- e( N5 p: G& z. y[
: i2 ]/ f. J2 F7 z- G" plet new 0* V) w* d, u; j# l) D6 h8 \
;;暂存新的一个全局声誉
; D2 B( [) T; f* @0 y2 Mlet i 0
$ n( H2 l+ u# \6 plet sum-money 05 \. U3 ~. \5 F' P! ]3 R0 D2 Q
let credibility-money 0/ Y1 h2 L0 _7 h" j8 e
while [i < people]
6 k" P- i8 _2 D[: x2 g9 e5 v) K, [1 U! B
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
}- ~+ Y+ S: P# [. dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( ?5 R2 j1 F7 s9 w- D) \set i (i + 1)2 f! ]$ {( b! L5 b, l
]
% _9 l' \9 Z9 B: r7 N7 y, q/ m. hlet k 0
`, g1 N" N. K$ E* X) flet new1 0
; G; z0 O/ G1 O( Qwhile [k < people]* b$ S9 N( L+ N9 C( O
[
- ?3 [1 [ E/ I/ Y3 d5 xset 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)
5 ~( y% Z" B, l9 c+ c" {/ \- qset k (k + 1)# \) u' q0 {6 b$ w6 h& G2 l+ M7 c
]
% J$ p, _# B' ]set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 L% U/ K$ t; u- h6 q) y* N+ g
set global-reputation-list (replace-item j global-reputation-list new)
3 O# t* K5 s- d1 b, u7 B# \set j (j + 1)
% ^5 F: ^* C& x' r3 @% E9 L! N1 n]' M3 v8 C& @, n
end
. ~) F X! z" ~( W' J- w
& i% n2 @# B; V2 X' r
G6 |. G4 v- O- o8 l% Q
% g* K3 G4 H% l4 p; O3 |8 J0 Xto get-color$ Y3 Y1 \7 _ Z# o/ P7 k/ n
: P, G! W) r( u8 `
set color blue( _, t7 x0 v$ d& t
end& v9 L6 |3 y+ K7 \. V! V( B
$ R' n5 R9 m6 }to poll-class
- A! b/ m1 z" g! G ]* tend1 Z4 q- x$ l- n7 y
5 k2 r( B7 c& t- M
to setup-plot1
$ Z ]* N v+ w7 u5 \5 r/ t$ C* D
+ G8 a% R9 ~* h1 d0 a4 aset-current-plot "Trends-of-Local-reputation"+ {9 S# @/ F9 A4 o7 j0 S" Q
- V5 B% e1 P# u5 u. y7 Qset-plot-x-range 0 xmax
% v9 o9 Y" o' D h& ?8 A& `% g e* D6 q
set-plot-y-range 0.0 ymax
9 `+ h- W7 T) Rend
. z, y; L! p# W: W
8 b7 v+ W- ^2 @! P" u8 Kto setup-plot2
* r2 t. v4 d( y/ {3 e
6 e# ?6 t( @* f4 m: X& I- Rset-current-plot "Trends-of-global-reputation": g$ B6 ]8 S/ {
; W+ u3 B2 f+ x
set-plot-x-range 0 xmax6 ?1 s, ^; W9 y' l
4 b8 h; l5 l4 x J8 _3 Oset-plot-y-range 0.0 ymax2 D4 w* @$ h V, y
end
' d- C& B1 P6 C, m2 L/ t' E% V1 d6 l, _8 s
to setup-plot3
1 W( w" e7 Y0 X$ ^5 X3 Y( M
6 |6 o, D7 Z) @, G% oset-current-plot "Trends-of-credibility"5 t2 }) T! \; B9 A; s! n) T2 r
9 J. B" V; `7 e2 X
set-plot-x-range 0 xmax
# u8 K, P, v6 ]% ~- m9 U0 c+ [$ Z) s
+ ]* c9 T, L/ b- _! E; O) S: q3 e9 F/ pset-plot-y-range 0.0 ymax
+ t2 a1 T! o2 Qend
" Z, c1 j* N/ U. q' F& X2 H* T' ?/ |3 S! j
to do-plots
" a9 `) m6 Z2 H9 Q, @set-current-plot "Trends-of-Local-reputation"
7 o$ }! H" ^) k2 t7 Y& qset-current-plot-pen "Honest service"# X9 w9 P6 e; H! o
end+ }) y0 g @ V$ s
9 y6 V) ^2 _* s! _
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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