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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. z% u0 ~& v) H& x. V- S, Y
globals[
) m8 n+ R# Y/ C9 u1 l5 Pxmax
3 `5 e0 Y* \. z, s; B- Kymax4 P0 K' g |5 ~: a9 A
global-reputation-list: j. ^. o5 K$ L s
2 D B8 ]6 ]9 {. K' [;;每一个turtle的全局声誉都存在此LIST中
& z7 ^# g) z* i" }/ {9 Fcredibility-list
1 u* u; m( B) E( b;;每一个turtle的评价可信度
) B% ^) ^. A: {, ?& Z' N4 b" bhonest-service9 x: {; Q7 z& T; C- p
unhonest-service
( j8 \- M" d0 T3 Z Loscillation5 N; d) G0 ]4 O* h# O3 H; _. m( b
rand-dynamic
9 s9 @4 B4 L4 m2 Q' G! V]- q( w# s1 i! x
" b8 A/ K/ t, u6 U5 Kturtles-own[
9 I! c/ s( x+ B$ T: {1 @% itrade-record-all
6 V& {9 Q8 G" J; C;;a list of lists,由trade-record-one组成
6 \3 p3 n' c v0 ?- _trade-record-one' j1 I6 T$ d W/ b" G( F' O
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 o! i8 i5 t' f1 `5 m9 j2 R* F i9 [7 T( x a# s. l
;;[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]], f+ I! D5 ?( p. U) c* R
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]
9 q. M% m: \, ?: ^( a0 `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$ S6 K0 _ h2 A2 I! V
neighbor-total
0 ~8 s M$ d; p$ p8 q, b;;记录该turtle的邻居节点的数目
5 B8 a& v0 @( n6 R, f4 `0 M# L$ Gtrade-time7 W+ a+ z8 G- ]# u
;;当前发生交易的turtle的交易时间/ D$ K f) t3 e+ n8 z
appraise-give# S( P c) M7 Q' l& b& Y! K
;;当前发生交易时给出的评价7 _5 K# p3 i. k) `* W! }
appraise-receive
6 `! s' ^ ^/ o. ?, j/ B4 \9 B8 z3 T;;当前发生交易时收到的评价
, n3 i) s2 n0 v0 @- |; Nappraise-time& R5 E% z0 x5 d8 ?7 c
;;当前发生交易时的评价时间3 L' v/ R c. S( p' F# I8 [8 j' c
local-reputation-now;;此次交易后相对于对方turtle的局部声誉. K P6 c3 a$ I9 f% J+ K3 D k
trade-times-total) e! f/ U% r$ y; Z8 ^. m" Q+ {* ?4 E
;;与当前turtle的交易总次数2 L! t. \. l# X
trade-money-total2 e6 }- U$ x' g$ u' s. I% B- e3 N
;;与当前turtle的交易总金额" b0 z1 W! k( W5 [
local-reputation
& J# Z2 y5 ~# Jglobal-reputation. y$ p" ] U4 t1 W B
credibility
6 B [9 h1 O2 U9 B5 Y, B6 h;;评价可信度,每次交易后都需要更新1 I( \- k0 o/ e& {- M* P
credibility-all
5 t1 q1 o+ ]" ?- i) x5 h;;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
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: G- }; e( c; b' A! };;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$ @ t- p0 W- ]) H% }
credibility-one
3 X/ r7 A0 e) P;;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
! t4 ~! M# v( o) P' \' Qglobal-proportion
6 G. R" a6 A( ^customer
+ B4 C! S* x! F4 x+ m; u% ]* mcustomer-no- n- o% J$ x* F
trust-ok3 Q$ R8 }# ^6 R" D9 Q6 N% _
trade-record-one-len;;trade-record-one的长度
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7 e* Y. ^ Y+ W$ K6 f( b: n/ l3 t Y9 \ @* _* c
;;setup procedure
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7 p% i& c* q1 Xto setup
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ca' [( N7 L, E1 X6 @8 ~, m7 @
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initialize-settings
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crt people [setup-turtles]
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reset-timer1 ~: S3 a& n. H6 z. y
) B% h5 l* N9 k2 W; F4 ^$ P3 [
poll-class8 R) A- |' x& x; K( {' K3 ^
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setup-plots
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: V, }; x n) k+ }: [8 W5 [- o# Ido-plots2 D/ T- M: F% c& i* [
end
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8 z! ^3 K1 L5 A' Q) s) [to initialize-settings
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set global-reputation-list []5 S- T: g6 B, `2 o z9 Y! s
+ I4 U, [7 x4 D$ p; N
set credibility-list n-values people [0.5]
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2 J5 d3 [- y+ [2 iset honest-service 0& ? Q3 [# q" b& Q6 m/ O
0 \" W' o# b6 v. ^& Yset unhonest-service 0
% H9 z& Y' T; a- p
" }% Z1 \! F" F9 m/ [) P5 f' z7 qset oscillation 0
/ @6 P" p. u, x2 f* v' G1 K/ F4 C8 K7 p1 l
set rand-dynamic 0$ Y3 {0 j {, s/ i
end
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to setup-turtles
6 N) p( L1 Y1 W sset shape "person"0 r- G0 A% T. y7 f8 L. ]* A
setxy random-xcor random-ycor7 J* [8 ~2 a0 S: j3 c C
set trade-record-one []
A" }1 U9 Z, L q; \* C0 g) K( U
' o8 a3 ~! c' g6 p/ H7 d7 _set trade-record-all n-values people [(list (? + 1) 0 0)]
~+ e0 @! ~: b, \
0 U, ?: c0 I d! g2 v) k- _3 s! \set trade-record-current []% C9 J0 H7 z+ I2 x
set credibility-receive []: z; @* P8 g# O
set local-reputation 0.5& @: O/ h |' O$ H. t
set neighbor-total 0; w1 M+ Z: g- H4 i1 w; A
set trade-times-total 0
b2 Z% T, P( o* o0 Aset trade-money-total 0
7 a3 l' L3 P, p7 Fset customer nobody+ N3 i7 H9 I% x% q9 V
set credibility-all n-values people [creat-credibility]
4 X' ~1 t& q2 A* P8 cset credibility n-values people [-1]
8 P( ]( P a) t/ z/ U( P! ~get-color
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- F2 M& D( L5 s. h o; a2 @- l% Jend" e4 _, a2 b6 I3 S& Y* _/ v" h
# `6 }$ M5 R# S0 O8 L
to-report creat-credibility
3 I7 w- P8 g# X. y# hreport n-values people [0.5]
: P: e# I2 N; aend
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to setup-plots
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' R/ A, J0 s& Jset xmax 30
0 @4 u% N4 c% i9 ?* K1 Q8 Q% X9 K+ J) a3 a
set ymax 1.0
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/ x- Z" e4 k! n+ Nclear-all-plots
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4 w1 M' i& z0 D0 K, tsetup-plot1' u, p5 n! G3 ?' w
3 Z2 P0 s# I! E; _0 isetup-plot2
1 O% @' d% \7 w6 p9 m
K6 o4 r" \8 N% ?0 X8 ~. rsetup-plot3' g) M5 [3 ]5 T- H2 w1 T: }) {
end8 ]& T. m8 C1 |
5 P+ w Y& E+ v, X9 n6 T
;;run time procedures& M7 V- X: @& h' d
1 i) S4 d9 v3 C R% K6 J$ uto go9 Z. F/ X3 V- T% T' k
( I- z! R% y8 ?5 z$ H5 s% @
ask turtles [do-business]" ?) }% ^, Q# Y3 Y; }' i7 \
end" N+ r; q; n' q) ]
$ ?% O* w) p5 G B4 C/ Lto do-business * n8 N) d: ]2 a+ v4 }. v
8 C5 j4 Q) |7 Z# N; p
* _' G2 m' x! j0 w2 xrt random 360
2 S! f' S- [$ i( B( o$ I7 L5 z
: y; d ]/ E5 p `fd 1
. _0 ?" ^2 z* M# l; A q0 Y/ q
( d+ ?- f8 E5 k$ d1 oifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
R1 B, {" q- t* r5 y+ H- f3 q
! a( a( ?% m8 c6 Z# e# [7 P r9 W( S# H;; set [customer] of customer myself( ^6 r" d B7 [1 f }
3 @1 X) f% C+ E; F* C: lset [trade-record-one] of self item (([who] of customer) - 1)
& z" F" ~7 S5 b# w* R[trade-record-all]of self3 G$ t5 C' u' ?5 U
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# B2 \8 C% J9 W5 v' U
: }. k) k; d* l0 V* r5 iset [trade-record-one] of customer item (([who] of self) - 1)
( O3 u: f* {9 o3 g* I- m[trade-record-all]of customer: M% O/ e0 R$ j B7 h2 b
5 `6 V% u0 C9 r. ]9 \
set [trade-record-one-len] of self length [trade-record-one] of self/ H5 w$ [$ _, P/ x2 u4 o/ s5 T
/ t+ d' M. e) N' }
set trade-record-current( list (timer) (random money-upper-limit)). l# |4 T3 ~' F8 ]& W! c, p8 H
% M/ n# `0 |! T7 f$ Z4 l9 ?ask self [do-trust]6 J$ ?+ Z! S5 w& T: t. U9 r
;;先求i对j的信任度0 [, t# X% \, P
. m1 j1 u I' S1 iif ([trust-ok] of self)
- k* V" V/ E W8 r" R) V;;根据i对j的信任度来决定是否与j进行交易[
& T% M! Q- d) c) A& Jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! ?5 k( | q0 h$ ]/ U; Z2 a
& X2 b* ^) A' M[
$ s+ D) Y$ G, M# e0 r8 T
- r# Q* k2 T {4 J7 qdo-trade' J0 A% ~, x b* a- w; R' A: C8 C
+ G! d8 o! u) m/ Hupdate-credibility-ijl
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update-credibility-list
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# E5 r: Z" ` mupdate-global-reputation-list
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poll-class
$ d9 i+ t- G; B A
" I4 H) r+ L0 P' v6 H( y- f1 lget-color
1 Z6 }1 H5 P- i' a/ u; b" R( x, U. S% M) }
]]+ q1 v M; a$ e
+ i6 E# }# l( I2 O# p8 y9 ]( |;;如果所得的信任度满足条件,则进行交易2 m, e! c5 R8 m5 j
2 o5 p: J8 O" _8 B$ p# a6 i j[
; z& @& `3 D: z3 }' B" E5 |* G- ^/ k; b3 E! U
rt random 360
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! c* x2 E; U' V5 [- J' A! F2 rfd 1$ F( B$ e" G- Q+ S
7 s/ T1 C/ T7 v- L3 \* l]
- N1 O5 z' I$ K
7 `3 W A3 A R* `end) }: w% u- w% w: h2 r$ q, s) V# L
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to do-trust 6 }/ k+ u. x9 |1 O, K$ k
set trust-ok False
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+ @& t- [- W% j, W7 }: @3 ?9 f* t9 u! n/ b& e4 R: p
let max-trade-times 07 R8 p! h. z9 l3 w3 u, z# T
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. L7 _' e6 q) X8 G" J) a2 qlet max-trade-money 0
/ e: |7 t, ~7 W; U2 X' Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! ?) ?$ X/ {- K% f* \) flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ g$ b! N G9 F* f7 e5 R# H4 S
. P' `( q8 l9 R" {) c3 x7 ?
) m( ~1 K1 x, N9 F( ^get-global-proportion0 N9 e9 D% u( @9 ]/ Y# v6 T: p8 S
let trust-value* e% k; H! x" I5 Y
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)1 {9 N+ K1 v& m6 {" C
if(trust-value > trade-trust-value)
* C7 a4 ?- v" J5 Z, D% ][set trust-ok true]
$ m( |/ o, J" Y( e1 I9 dend0 H6 `' q$ I# \9 T( u* ]
4 U) p) z8 ?. J0 @9 q
to get-global-proportion
6 d1 V. L9 X# \; pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& s" G+ p8 U3 u[set global-proportion 0]7 V& V% S, G* K/ ~" F0 C( w) P
[let i 0& G1 C5 C7 w3 x8 f# E6 T+ f/ h
let sum-money 0
' T* |$ g1 E3 M7 `while[ i < people]3 P8 c2 \2 _: P9 G- H3 T6 C& ^
[
" e( W, z; b% e+ m: _/ gif( length (item i0 E1 r- R0 S `% n/ ?6 k
[trade-record-all] of customer) > 3 )0 O" V) K* u$ ]2 W2 V1 y, b
[0 ?' D2 O4 o" J) D
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 m5 h, F8 S6 Z$ c3 X]( e6 ~, E9 V% O% U0 j
]
5 k5 S2 z7 D E7 D% O3 nlet j 0' n ^- n6 ?+ K9 h0 [
let note 0
; `9 i( |/ _* g0 [while[ j < people]
& r" @* L3 M! M* |1 |/ R[
/ E! b; h8 A) yif( length (item i7 s" h) l( S1 F' D2 R; Y7 f/ [
[trade-record-all] of customer) > 3 )0 d9 s& W4 N) E3 [! f& p
[
) \' A+ Y/ Q* hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 l" p N8 |* L
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# w* h8 `9 ~( x. k, \: E3 k# L+ l
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 m. n/ L3 b' T2 F0 v3 _% ]
]
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set global-proportion note
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end
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; \+ [3 B' }$ f. O$ M' Hto do-trade8 Z) u5 s, P4 z, @ K& @& h& i
;;这个过程实际上是给双方作出评价的过程
" D2 @6 r$ ~& c2 T5 J0 l) B9 `set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ |; z7 h3 k0 R3 Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 J+ E/ r# K& _( U' Vset trade-record-current lput(timer) trade-record-current
1 ^3 }% v3 T o+ l;;评价时间" C* n) A' W& Y' ^8 Q, K V
ask myself [+ F/ \9 s3 R& j7 {
update-local-reputation
. f5 W4 q: x8 f# z/ S' N) ?9 qset trade-record-current lput([local-reputation] of myself) trade-record-current
6 j! }0 j' w4 P [5 P4 V0 @" y2 J] }0 b8 Z5 d- e
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 P7 R9 s1 t) u) _) K;;将此次交易的记录加入到trade-record-one中4 k2 y! Y0 e: m. K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
( l3 S, z0 y" o' s4 g% T1 zlet note (item 2 trade-record-current )
+ s3 f, f s, h7 Nset trade-record-current
7 d6 N9 n9 ]+ Y$ [5 |# \& I$ i(replace-item 2 trade-record-current (item 3 trade-record-current))
7 X" f5 `7 r6 J" z& x2 ^/ j1 Wset trade-record-current2 w% y& |2 z3 P' t1 B9 I, a6 e; n
(replace-item 3 trade-record-current note)! g1 Y; q) @! J. v# E5 r
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6 A7 S) ]! | H' P# p9 n1 x3 Cask customer [* z+ _. v# q1 ]% E
update-local-reputation
* F. u/ \' e' M# w" |" b4 e" dset trade-record-current! K. H- x y* q9 Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
k: G' z C6 d, y2 x]9 ~ k( [$ s% c, h5 s; q4 g4 Y
N! @9 N4 Y# u2 M2 w
3 x" Z0 [3 d1 Y* v6 gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ u6 z5 @0 I" X) h6 f' ^# s- F" p5 ~& \! h z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ r2 Q+ j! w( V9 F) A7 k9 a4 W8 L;;将此次交易的记录加入到customer的trade-record-all中
5 w% Z. o% `* Fend d2 t1 E) V4 u$ R" P$ j
7 Z& c; `9 T9 {# P: M% D% y6 L! Ito update-local-reputation6 F9 y' I, A0 {
set [trade-record-one-len] of myself length [trade-record-one] of myself6 E& T8 k' `2 p* m S
~' F# o z* i7 j; u7 @9 ^8 f% Q
;;if [trade-record-one-len] of myself > 3 8 ]8 x% z u6 j! F
update-neighbor-total
; a( e) {# i2 M* E. h+ S;;更新邻居节点的数目,在此进行
# p& N5 m% E, a5 C; Ulet i 3
% g) [" r v6 A/ m& blet sum-time 0- |5 [" g3 z% {5 r0 w6 b
while[i < [trade-record-one-len] of myself]+ h4 W' }: ?# o: P" h1 K* h
[
+ ]/ }, _1 {9 U: T0 A7 o' Kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 O& x4 B: G* x; Hset i
* Q; o, V7 G* N2 {/ x" W( i + 1)0 R6 q5 D; O3 n6 x
]
) {. b' J9 J7 l; Z5 [let j 3, s( y% d9 N' b
let sum-money 0! D7 m' w8 S5 `- X# f
while[j < [trade-record-one-len] of myself]) e' [2 c1 n" Q7 d
[
; [# y# ^) O: c6 mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time) W' X# ~8 T" l5 ]) l: @
set j
! A4 Q4 o2 }6 _. v/ x. @( j + 1)
: ]4 J. q0 D8 ^- M t k, a]
$ e# m7 o% a7 e1 E# m3 d( ~* b5 alet k 3
% U5 h) b# ?6 w9 F% I2 rlet power 0
0 \0 L) {) q% |: O5 z4 I) vlet local 0! `6 c- r! |# I% _4 \/ _. d' A. e7 f
while [k <[trade-record-one-len] of myself]
! i: N; r- A8 {! q[
* n1 C. `0 j0 p0 Y, Q& f* 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)
( q! i% r. a6 N5 z3 x- _set k (k + 1)( y$ _) `! S# ]! a% Q. c4 w2 S
]3 t$ o2 e/ f: C* x% P, F; G" o, ]
set [local-reputation] of myself (local), \3 u. Z/ [+ Q
end
: S3 o+ c$ }" ~) i3 z$ y! _
~0 E7 l- |$ E4 C nto update-neighbor-total' m% Q0 a) C# G4 H
8 e3 \4 {& x& w0 J& Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! ?' e6 \# m2 N7 D& r/ o2 v7 E! \9 L. I6 L( \% I
+ s/ j$ |& k- i) g7 W" q# |end
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to update-credibility-ijl
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0 ?: }- z) M( o' r: G;;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。2 O& T# e/ K3 _/ L
let l 0' x9 c0 h% C2 A4 {
while[ l < people ]; e( [) |8 s) `3 ?
;;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3 P* A- r3 t# c" [/ c
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 r+ f2 ]; X8 j/ b% R/ z4 mif (trade-record-one-j-l-len > 3)4 Z" `+ X9 K5 Z
[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
3 G' p9 Y. E# U7 y9 _' Flet i 3
) \0 k$ Q6 ~9 X' H3 L& ~let sum-time 0
K. B0 m4 ]0 h h0 ewhile[i < trade-record-one-len]! w: Q% Y" A/ J+ W
[
* S1 g" {) ^. b6 lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) E) n" \0 ]' Iset i h2 b; l5 ~5 F! o0 i p
( i + 1)* E! z% b2 v/ Y* n% A1 ^; C: h+ }
]0 I! A* ~/ K2 G! w# c
let credibility-i-j-l 0
3 D* z8 w6 l: D! F# J/ E;;i评价(j对jl的评价)
! j$ g7 P3 r6 [/ N5 ^4 Rlet j 38 ?# u' w' ]5 I* A4 b E$ v1 k
let k 4
, t; z& e j v; ewhile[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
, }5 U0 I' G# \. g- C" H5 J* 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), N8 ^# @0 P; k9 J- U+ Y9 H
set j; j Q1 ?4 {9 }8 U
( j + 1)# z D$ ~2 e' e; O- U/ l
]
# Z4 }: K# g/ r# n( k9 Sset [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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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- N/ d# W1 b# H9 j' \. r
;;及时更新i对l的评价质量的评价
2 G, E. H/ s+ i6 f" } T8 N* O: cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ M% `( C) ?) x8 _0 G5 Y R2 fset l (l + 1) d: k% _4 `, R1 m
]
. [3 u; J. T' P6 M+ \9 Dend
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to update-credibility-list
8 m! b7 L" }# X) X6 u4 t' {. Alet i 0
1 }& S- D1 C2 c1 p1 [1 q3 Bwhile[i < people]9 Q7 o* r/ U( a+ u6 ?
[
2 k9 U- ]% S% @! R; u. blet j 0
8 K I9 }4 g7 S% n Elet note 0
* I) y" Z9 N( \3 S/ glet k 09 f# d# V7 j5 m) R# a
;;计作出过评价的邻居节点的数目5 c! h- W$ n2 ~# D+ B$ z
while[j < people]
; Z z$ Q* w* o" G! ^[3 q% J7 E5 A% ?
if (item j( [credibility] of turtle (i + 1)) != -1)
# l* U, L# k" N;;判断是否给本turtle的评价质量做出过评价的节点
9 n. G5 ]8 l, E7 x! E" V[set note (note + item j ([credibility]of turtle (i + 1)))" i! ^1 y; z3 l
;;*(exp (-(people - 2)))/(people - 2))]; O s: u7 Q, J7 u$ K+ Z7 o* Y* g
set k (k + 1)
9 b+ Y# h6 v- Y0 ]/ a- e+ A' S]
% y% ?" p1 W, U; p1 n! qset j (j + 1)
% m5 W8 ?1 W8 f8 \9 k3 x]
. \1 u- c: _' g5 L& Rset note (note *(exp (- (1 / k)))/ k)
2 t/ ]+ T+ f" `# X- jset credibility-list (replace-item i credibility-list note)3 F+ b* ]2 r9 V- F, H. i! j
set i (i + 1)
/ A3 N; F) B, A& C4 Z* d3 g]
5 j0 x' K* I# G$ l" jend9 d _, g6 ~" m" \7 `* U- E
' T$ ^ a* I( Zto update-global-reputation-list# M8 i5 y% _2 M& g! [7 Z, l* N
let j 0, g! Z3 j7 {6 M$ U9 b
while[j < people]
6 ]3 n _; k, F[
0 a: I5 I/ Z: A& K5 Vlet new 0
5 s0 c+ H$ O7 i+ Z. L7 g! H;;暂存新的一个全局声誉
- i' P, Z, d; elet i 0
0 `8 J% d; y& J. r) d# _let sum-money 0
, _4 f: ~( b! M/ ulet credibility-money 0
! h5 M0 Q# T: c+ c1 N" n. b9 |while [i < people]" S# W5 \% C W: F
[! [! D3 C: M! F. {6 c u' |3 ]' _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! h: W# ?0 L/ Q8 ?6 s4 q1 q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, p0 s9 o9 v6 J0 b! c/ oset i (i + 1)9 B2 o. I/ j3 i, r. Q( j
]$ h& g6 E' |% \$ y2 F
let k 0! }1 ^) x$ {1 R9 i" l( m
let new1 0
5 S6 b- H9 o2 m+ a/ Ewhile [k < people]6 w* z* e3 P* m* ?& ~/ p
[
n" C8 W' H& i) hset 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 f/ ~1 M! y3 M5 n2 z' q. j; z" Q& W& lset k (k + 1)3 a7 I; \( \, N2 n( z9 U( ~
]
- B* x' y) p2 K) n0 Q+ c3 `- J8 Iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 k, v5 G$ D) uset global-reputation-list (replace-item j global-reputation-list new) o- o7 C0 N# G
set j (j + 1)
$ N+ c. ]" y0 T; g- W]
& K. x: G% F/ lend
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to get-color
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set color blue O: N, b- [1 U- F. z/ C; i/ C
end
6 q6 u, f$ N' W/ d$ i" a
% H8 n; I1 V3 _* v0 Tto poll-class
' q8 ]* _$ }" P1 u& C; Jend% s9 t+ y; X* j: I. r- i( N
; h6 {5 Q! n: [# E/ J8 ito setup-plot1
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set-current-plot "Trends-of-Local-reputation"! B, C9 Y1 ? O' x
! Q$ e" m! T6 q) j# o0 k2 u
set-plot-x-range 0 xmax
1 L: n6 J2 p4 V9 d4 J( `5 s4 @. P6 t4 a1 C+ C/ w; `* _. B7 K+ E# Y8 m
set-plot-y-range 0.0 ymax
- G* m- P$ u/ n6 F, M/ F3 ~end
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3 ~; l, C5 I$ ^* Ato setup-plot2$ f; w3 h3 l& U; P7 u( H/ U
9 g6 j( l7 i. b) B( ]set-current-plot "Trends-of-global-reputation": N% {5 d# E0 Y
4 b9 ~; c9 j3 Kset-plot-x-range 0 xmax
- L5 X/ s" G# z3 e4 G8 G( Q0 x; H$ ]
set-plot-y-range 0.0 ymax" m1 g: Q1 i5 X( l0 r* _5 h$ j
end6 |8 b, D9 O! Y; g2 I8 n
% {+ x/ V# Y0 V, ~# ?# @to setup-plot3
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1 n; ]. S, v9 g2 Hset-current-plot "Trends-of-credibility"6 ?; ~- K @4 |6 c0 W: U
* I1 F; F3 y* D
set-plot-x-range 0 xmax
1 _9 `* A H7 k) z) A# [- U$ J
set-plot-y-range 0.0 ymax
& v6 e* @) ^8 v* vend0 e4 |2 Y9 \# z1 b2 ?
/ h1 z+ n6 {8 b6 L$ `; d: nto do-plots3 f4 v( Q8 \6 v% S5 v
set-current-plot "Trends-of-Local-reputation"
9 c6 W. |! D% _5 D# w, s) x# ^$ _set-current-plot-pen "Honest service"- n0 G/ n" E7 r8 z; c# [
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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