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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
. X8 t4 d9 ]0 _" _! M: M1 _globals[
" O- Y$ C& S" S. a" oxmax1 ^# y# @ M, B% @, Z
ymax
6 A' d, a _8 l( fglobal-reputation-list7 I# q& N! m! `9 u& W, y; o
" _$ A6 ~ x. H3 Y8 V
;;每一个turtle的全局声誉都存在此LIST中7 v* J" n9 |6 X; k( a- S- v* V
credibility-list
U7 x/ |5 N# G8 g;;每一个turtle的评价可信度: b3 B9 ?5 T0 F
honest-service
# @$ v c6 H8 B# H/ Eunhonest-service/ ^. U" O% [2 Y: o: R. \& h
oscillation3 }7 |# _( M% B+ u
rand-dynamic
7 b: {7 ^! w+ ^* e; h% `]
! n/ F! J/ M2 G- i1 l3 x% G- U, p" F# u
turtles-own[
/ _7 L+ r4 v# Z* Ztrade-record-all
. U7 K% s% {! Y- h2 b;;a list of lists,由trade-record-one组成$ k& ]. T" q4 W
trade-record-one
& }0 n$ H" D- i+ V;;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 [; i# z% [: A, u5 r# O& y( Y
# I( z; v& ?! b+ `& }3 I" 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]]
, o* P8 h, g" {* O0 M6 w% Vtrade-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]
8 |- t3 I, }, ?& qcredibility-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list6 \- n8 n/ ?5 S! r9 G7 ]8 H
neighbor-total
6 C n, D( V, ^2 x) t;;记录该turtle的邻居节点的数目
1 z5 t7 s- g8 d# U4 xtrade-time; `8 }# d: T7 L
;;当前发生交易的turtle的交易时间
6 o" S w ~$ y# G* n4 Oappraise-give( \$ X8 m3 p, _8 K6 g' t. L
;;当前发生交易时给出的评价
4 D( h* _, b `6 E& }appraise-receive1 Q5 ]5 C# f( G# U3 h- z% f8 o
;;当前发生交易时收到的评价, p8 I: z) }" V
appraise-time
9 L4 V. N/ P3 Q;;当前发生交易时的评价时间
; U7 ^% E) o4 F" Ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ Y' x' k" ^* E8 z. h* Atrade-times-total
0 K2 | S& v3 a; B;;与当前turtle的交易总次数
: G3 A0 K! m& U. i0 r# gtrade-money-total
& H+ Q4 u- L B) X;;与当前turtle的交易总金额
; @+ M. \; h; f% Y' t( _local-reputation& Z; j5 x8 b5 X# t) E
global-reputation
' p* E- A' ]9 t: h, ?credibility
* Q7 U" J2 A7 S) l* `;;评价可信度,每次交易后都需要更新
# T5 v" H5 z5 V5 `3 e* {) \: p' Icredibility-all0 e0 f* t$ T# h! }7 p
;;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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;;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
" Y( o1 g$ J; C) g9 u) Ccredibility-one
2 H8 s% w: Y+ f# V;;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
G+ r% H9 X% ~global-proportion7 p% W, {( n! ] A- _9 l; D4 P% X. c
customer6 ?- \+ Y; S% _& d" `+ o# H
customer-no( a. ]7 _+ s, \" `
trust-ok
5 i/ o6 I- l1 l1 S+ ytrade-record-one-len;;trade-record-one的长度2 l+ T8 g @* [; v5 e/ v8 k
]
6 ~% O8 I8 }2 o8 @6 ?; C
/ K* O1 L9 ~; K;;setup procedure: E1 \ H0 |( }3 G4 H
, g6 g; F L8 P2 e/ W, y5 a# g2 Dto setup
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ca
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initialize-settings
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crt people [setup-turtles]9 @3 m( b' H$ R) F! r a$ o
6 e" |/ ?2 _+ r5 A) L1 vreset-timer
2 o9 D2 ?( C, A
. g. I5 y5 e: r" u. Gpoll-class4 q0 d$ O l7 r" u( F
5 s' R; ?# H+ o6 y8 ~* |- `
setup-plots5 L9 B+ U. C p8 I
5 ~" A! h* k- J. \+ o. R1 _' `
do-plots& q. u8 B f7 {' A6 }/ C! T# j
end/ d, n/ ]) E- s! h# k. a
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to initialize-settings
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set global-reputation-list []
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4 ~# A' c- R" X. I5 }1 e, `set credibility-list n-values people [0.5]3 u" }1 S4 t5 n9 u
. G, [; ]$ z8 \% o) f- n1 g6 \/ _
set honest-service 0
* {( y4 m2 C. D; Z9 T3 e" C, N- n6 ^7 Q. ^
set unhonest-service 0, v6 r; U/ E. ]" }* R
, v* x1 w( Z0 J' wset oscillation 0
/ M4 n+ C- A5 ~4 @ s/ `
1 O3 i, H0 | [/ ^5 S, g1 i( P# qset rand-dynamic 0
3 {! b* b$ ?8 U$ q" Yend
0 Y& {" T2 E# N; t, S) R. M9 j4 b4 i+ | W
to setup-turtles . P5 R- Y; |1 y6 ~
set shape "person"
" a8 R: Y& g) N, l: Bsetxy random-xcor random-ycor
9 M& X) M. C2 b# r X; O" z Lset trade-record-one []- r* U$ y% V2 ]' I
- U( I7 T% G) ~. o2 x/ [6 J
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
2 e1 Y, z& c( B/ tset credibility-receive []' y# h i3 F9 L$ v' T0 m
set local-reputation 0.5$ |. R+ P2 L* @- C: }
set neighbor-total 0
4 b! `9 B% g" w* C! Q) O: ?7 ` l- qset trade-times-total 0
5 u# g, l" Q! m; `) nset trade-money-total 0
/ b7 k$ g! ? {3 v, u' H( `set customer nobody
- s5 _0 y9 x7 d r+ cset credibility-all n-values people [creat-credibility]
( D3 O: k1 j, mset credibility n-values people [-1]
0 W i+ T* m, O+ n+ ^' R9 |8 u- Z! Iget-color! y+ l# B, t5 c q3 p% N
9 ?9 c& g/ E& `, o: p% j
end5 H5 ] } Y$ `+ t, G- H! w% F
# ? R* S( S) {1 Q/ s0 o2 ]to-report creat-credibility
2 ^# ~0 D$ T! g. p- Xreport n-values people [0.5]2 |0 @) y# ^" {7 b! _* A
end, j( S& i) t. [/ v
- m# s4 w$ \/ |3 g0 X& M P
to setup-plots! g2 W7 Y0 L) u1 B7 Y8 g9 V
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set xmax 30
3 ?% k. `! N0 Q8 _3 y* X4 D5 Y
: M+ r- l( C) a ?; y! V6 Fset ymax 1.0. f+ A) D, ? Y1 X# d
( L w9 ~" h; k' [clear-all-plots* X+ Y' s- l( C p" J
# N3 z5 b% H# g# l7 K0 W
setup-plot1- z ]! }: A. v v# O% S
+ P: s+ y/ l8 M7 v. B
setup-plot21 u6 s; y2 E- n% o+ q
8 R0 l# c* {7 j0 _setup-plot3
/ o" n' Y; [; Dend* t2 n5 Q% y. E w2 ^
+ K) {, C4 Z7 R* m
;;run time procedures9 K" J8 l8 k# }) C0 G$ s1 d
6 f; |1 h; M! A. eto go
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ask turtles [do-business]
8 n w& V: [3 G4 `- aend; ^ C# G! c( x; q0 x
; |4 E" T4 ~* ] p( h2 J' N
to do-business
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3 s. V" ~ V6 S$ A; Brt random 360/ D! s; C9 h8 p% h7 o9 x0 d
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fd 14 u( `7 S6 ~+ L6 z
% h3 K# V' u, o9 M
ifelse(other turtles-here != nobody)[1 Z, O' I" L3 Y+ V; r+ M" O: r
) ?% F% T# h$ b7 o1 z) e, U/ b% ^& bset customer one-of other turtles-here
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- `/ @# h3 h! u' w+ m;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)4 ^+ J9 i! f C8 h3 O
[trade-record-all]of self N" u0 V$ x6 {8 d) j4 R
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- B! b* t* z9 n
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set [trade-record-one] of customer item (([who] of self) - 1)
4 L1 N( h* c9 i' S' ^/ Z5 ][trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self. K# v0 X1 p" ^/ Z' _
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust], z# I2 w7 u, F1 |; Z3 E
;;先求i对j的信任度
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! O8 c3 u$ N& z1 Y- H' \8 kif ([trust-ok] of self)
+ L6 C5 V- R5 X0 K! E ?+ D- i5 S;;根据i对j的信任度来决定是否与j进行交易[
1 H d, W0 s6 ^! L4 J! ~ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
?5 T3 T1 k" y0 c# v8 _- ^$ ~+ X( x: o
do-trade1 y5 y" m1 t/ Y0 c
/ t; `7 ~* c: D% _3 s* W9 [update-credibility-ijl
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% w! a+ N% E! w! B) t2 y$ lupdate-credibility-list: \, \: z: J6 z3 w/ @# }
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update-global-reputation-list2 g: q+ d) _! a- ^5 n
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poll-class% B( P- o8 q! O' M
. e$ _1 c1 L% }7 W4 Bget-color
# @/ G# j0 K1 e' |2 n6 N2 a& O" ? l8 N. J B, e
]]
0 \! O# u6 w+ {6 [
/ H, C" b' F5 z+ l4 C;;如果所得的信任度满足条件,则进行交易3 F# d/ M! q3 y) D
( o0 x1 }; g; s5 G" C7 D4 c
[
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rt random 360; q+ S4 X; o$ K+ A6 c
4 F4 p$ \1 P- W% }6 }2 x( H* l
fd 1
0 @- X6 D. B; J" ]6 J. P4 p) m% ?* c7 b" k3 i g
]
( F) {" h/ J& Q! ]8 B0 p( \2 }4 A$ ^2 S8 s
end+ V; H$ L. \+ o( f8 \4 ]: T/ {
3 ~3 K4 T2 ~1 r! Eto do-trust ) F) o. u+ N7 T
set trust-ok False
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let max-trade-times 0% c$ D% ]9 h1 k: H1 v1 m2 q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; |% Y0 o) @7 m1 y* [5 h
let max-trade-money 0
9 ]$ `6 Q% `+ u( Sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) D' W2 ^2 t ?% d- e1 Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ ^. A( Z8 y5 O6 q$ o J" |; S9 n7 C! b6 B
! L0 v/ k T0 Lget-global-proportion
! ~; ]; l) P" x" ~! K6 Elet trust-value
/ S& G1 [& {& olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% F/ u) o5 K9 x# }8 W6 Y$ Tif(trust-value > trade-trust-value)
! \8 g/ t# o& G6 E9 e% c[set trust-ok true]
( S2 E5 ]6 x8 dend
9 o3 W8 V! W8 ?+ {3 s+ F* A3 s6 n$ `9 ^& n* [
to get-global-proportion$ f' A" i" y" v+ S, f
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); l7 A% x5 m9 m+ U; d; Y9 g: q+ I
[set global-proportion 0]
" z1 ^3 \6 E9 G) ^[let i 0; H- s" i5 w& t5 K9 ^
let sum-money 0) e' `9 y0 {& v7 s4 w0 I. N
while[ i < people]
0 F# c: Z$ d% o5 f5 t' X[/ H- O3 F( X" @" v0 L; V
if( length (item i H9 Y t4 j9 ?% `( M
[trade-record-all] of customer) > 3 )/ A' L3 l( V0 L
[
1 [9 x% M8 a. l( rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ D/ K3 }; Z. _, |( u. d' B
]$ M! `: Z1 ]) w1 G! A3 q
]
5 x: f; ?; ?! j8 j% zlet j 0
& b* r: E# I: Flet note 0- B/ F5 N3 r. s- p
while[ j < people]% {3 K* t$ ^) ]# f3 q
[
$ W" `8 h* P* Aif( length (item i, K) t" _$ N# ^! n" @) L
[trade-record-all] of customer) > 3 )
' {6 ]" V j1 _[1 a( y/ ^, c; d' B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 {- G% G) W3 C3 l- I0 ]0 a[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ M6 _& o7 R+ N S7 H, U' |% |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 C8 F7 C! A/ @$ W
]
7 c( y8 b; T0 M3 M]
! N* }5 n- f" p/ _. \% C1 \+ hset global-proportion note1 j6 s9 y- e/ W3 A0 E
]2 {; z) R6 u. }- s# y9 G; `
end
+ x r7 k" ^7 F) Z5 d
+ C' N/ Y. T' v) g Rto do-trade
+ E5 f* Z8 m/ V. X4 N4 x5 Y;;这个过程实际上是给双方作出评价的过程3 T8 i$ P+ W+ @. T' h7 ]# z/ c
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- W) ]$ _9 z; P5 N) E8 n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 s. F! I6 {2 j1 G
set trade-record-current lput(timer) trade-record-current; z$ C5 }0 @ m) ^; L6 v
;;评价时间
4 z! _2 B. G% ]1 a) e, |- yask myself [
E& b0 {9 t9 j; z) R4 Dupdate-local-reputation
, m; O P# N$ C8 ?$ d1 h) S4 pset trade-record-current lput([local-reputation] of myself) trade-record-current3 ]1 o) S- Z$ b+ N; K; ]
]
% v' Y& B$ [7 O1 R Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# p; N' ^7 i9 d% H5 C% ?1 l
;;将此次交易的记录加入到trade-record-one中
$ \" t0 v- C4 G/ s) T' Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ Q& }' f, ~( Klet note (item 2 trade-record-current )8 U! U- _& g7 ?& N$ ?1 b
set trade-record-current/ \. Z' a7 V& S% h/ T
(replace-item 2 trade-record-current (item 3 trade-record-current))
; b. U7 U! X+ M" e( g5 L4 ^2 t7 k8 N0 Wset trade-record-current, `; ^" Z" j" L0 }9 q
(replace-item 3 trade-record-current note)- @4 c+ F3 o3 b8 T% l, R
, ~# R+ ^; O/ ^
. G* G7 ~, Y1 o% A8 r& T' cask customer [
8 w9 _! T: x2 b( Q! y! W8 Bupdate-local-reputation
( K/ Y7 X, _3 J5 i7 ^. F$ _& ]' [set trade-record-current
! v6 D& {5 U& Z6 B$ z8 \* w' k+ ^1 \# |(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) c6 U; B: B E5 h) o
]
% z# l4 z" y8 C* C% _4 _& X) G+ W: \8 M$ Z
?- q- _2 b6 b: c, E) d) Z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), n7 x% o1 ?. ?. Y
;;将此次交易的记录加入到customer的trade-record-all中
' F1 e% E) K1 M( Z2 Y) d9 r# jend
$ C- r+ e/ {) V2 N1 w
, C" ?8 J' G; p* }$ @to update-local-reputation' {, P2 \3 J- q6 ` z
set [trade-record-one-len] of myself length [trade-record-one] of myself
% ~3 y8 ?) I- T, o, X+ F9 b
7 M. x, H2 H' K8 z. X6 l; u* w6 |& Z$ d8 Q, }5 h
;;if [trade-record-one-len] of myself > 3
: ` S+ M$ v3 c4 ], v* M0 yupdate-neighbor-total
4 @/ j3 H* L/ G& ` k$ Y* `* T3 i;;更新邻居节点的数目,在此进行0 B5 N0 I% {- g9 e, W
let i 3
$ i& l% g' g9 xlet sum-time 00 c9 Q! g- {) [& V; ?# w
while[i < [trade-record-one-len] of myself]
& x& \& E+ @- a; d! c6 b7 b% ?2 G[
; V. m v F- b" }6 Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 w) ]. a$ G! P! x
set i
, U/ K+ C3 S$ M, ]) [& e( i + 1)
; ?; O0 c6 t' M1 }) D1 V0 M]
& x0 _: T ^( l( j) Olet j 3 U4 s" J6 h5 }" |& }7 b1 d
let sum-money 0
' V$ l; O- I e+ twhile[j < [trade-record-one-len] of myself]. ?7 i. a- P% P5 r# O9 y
[
( K5 V) G! p( a# {6 |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)
9 M& c5 H, t4 e, F z: H8 W0 Q5 f Pset j8 t/ B) m1 j. a6 h) s
( j + 1)
' j- e/ }# [( M' @ ?: B]& M- h4 Z+ ?- x8 H [
let k 3/ N" P) \: D5 y3 T* I: |( Y9 D
let power 0, Y' n6 r0 ?: y: E4 F1 n
let local 0
! P9 _5 M0 ~* d) c! A. L+ ~# [0 l$ r# lwhile [k <[trade-record-one-len] of myself]; P) y2 E! I3 ~6 c) h3 _
[
4 K' E+ p; F! wset 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)
9 o9 ]' o( i, i& ]: Y& O3 S; L4 }set k (k + 1)
/ r/ _5 F( Q9 M]
2 o$ g! \' H1 d" X) Pset [local-reputation] of myself (local)6 d) N7 r2 u8 ~: c: i' e
end
. Y# H6 J) F0 q" s- m* S; [# s2 k" H5 L$ G5 B1 A+ ^1 ~2 D5 u+ {3 Q. ]
to update-neighbor-total# v$ ~8 h& l, P( E, t6 k
X# c* i9 d) T$ s8 k
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
0 a$ W# ~. w# S4 }7 E4 u8 R1 f, Q3 h2 v4 C3 L3 O; \7 t8 h
' ~3 z7 C m: c. l- O1 }" ?end$ w" G& _! \/ ~0 y
0 i8 q3 W4 z8 ~3 S3 e$ r6 H3 k0 n. F
to update-credibility-ijl 7 _; B3 g7 ~( X2 [2 H3 G
# {6 i3 e- W* {
;;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 j2 U# r8 R f" i7 n, P5 Q) @
let l 0" `$ i: L3 ^4 a3 g
while[ l < people ]
6 ^0 [1 \8 h+ `;;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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% m6 J |' d4 y8 E7 flet trade-record-one-j-l-len length item l ([trade-record-all] of customer). V+ c$ W. o4 L6 ^, t
if (trade-record-one-j-l-len > 3)
% h2 G$ }; ^! ?- J[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 o1 w& I a& O' V" A+ L
let i 3! U3 ~! I1 y) }' Q
let sum-time 0/ {1 }, f6 o' }# Z/ R6 Q
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 V1 l9 B5 ] @/ y6 j4 }: Y5 E$ Eset i6 T0 A! e2 i' E; O1 X
( i + 1)
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" V& S. C+ f) }6 llet credibility-i-j-l 07 }2 ~! q, w% g. c
;;i评价(j对jl的评价)0 S Z7 R2 I* }% }2 p$ _
let j 3
) ?8 N6 d8 R0 m- a) \. O9 plet k 4" Z' W* w$ ?; y+ T
while[j < trade-record-one-len]8 k( r$ n7 w7 i l
[
/ V4 |+ M' ?' [, Y, [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+ G1 {1 [2 j# m# V5 C
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)
% Z1 ~: [0 }; p+ ]& Z. ] oset j: B% d0 V& q2 X; I7 R x7 g0 h
( j + 1)
' a0 N# @) x+ b0 m]
# h8 q! y4 }# Q, 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 ))3 L& a' v8 ^: x" b t) V, Z+ C2 o
+ G% | x0 W5 \5 I) e/ Y5 G& M3 c3 N2 Q+ t0 k
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). A1 ~! V* [0 Z/ i& p
;;及时更新i对l的评价质量的评价, L7 |3 j5 Z6 i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ K6 f I& p Z# o
set l (l + 1)
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end
i L t: {: V2 H2 [8 ~+ v
3 {$ `/ J% r0 dto update-credibility-list
& s/ l s" M: c$ `* _% e4 b0 [% Tlet i 0
& a m+ w( B7 _while[i < people]
, ?4 k4 W% q( ]3 L! }/ ^: U0 n[9 S5 J/ N a3 d+ L) O6 U
let j 0
$ Y* [6 d) e7 L3 F2 B( V# Alet note 01 Z' u: q0 e1 D c
let k 0( G) u' e% c$ k( _
;;计作出过评价的邻居节点的数目; d& w5 [' R& {8 J% j1 G
while[j < people]
0 x& f: f7 R6 G1 @& ?& V) e. {[/ ?) g$ t/ P* y& y& a: e
if (item j( [credibility] of turtle (i + 1)) != -1)7 Q3 ^3 G7 T9 P! Y/ f8 e
;;判断是否给本turtle的评价质量做出过评价的节点
7 q. M5 e) @& ^9 L, T6 b! S% |4 _[set note (note + item j ([credibility]of turtle (i + 1)))( P# }$ s8 a0 ]4 Q1 K; S" H
;;*(exp (-(people - 2)))/(people - 2))]" _8 z j- I; O
set k (k + 1)" b/ R! @4 I. z" C4 O/ m
]. X* e% A2 b$ e! z
set j (j + 1)9 y2 b5 s0 @3 R' `! j
]8 `1 m3 G p8 \( p7 c" |( `, g5 T2 z
set note (note *(exp (- (1 / k)))/ k)
( V- B1 E( B5 w2 _1 }set credibility-list (replace-item i credibility-list note)
! q$ x8 E1 m5 ?set i (i + 1), m! p9 A9 ?/ c+ y
]
9 t) K, G) w7 p7 Y5 g, Send0 L* O% A, ^) ?
6 I: k, Y* f9 ?2 V" A- a- r
to update-global-reputation-list
- c: D# K- ?1 n, E4 \0 g5 `4 ^9 Blet j 0
) R$ b0 |/ A( f% _9 Awhile[j < people]
2 K' ?7 L, U, S3 F+ l3 B! f[
6 T3 U0 s2 ^2 y+ Qlet new 0' k2 K6 p8 i3 Q; Y, e' ^
;;暂存新的一个全局声誉
! g5 g v) A0 ~; M5 flet i 0* i; e! {, c2 a
let sum-money 0
$ l- X3 ]7 | J( Rlet credibility-money 0( G+ S8 R2 z. L: \8 [1 |" K" ^
while [i < people]. I" i1 `% P/ Q6 C! X9 O
[: W" ], j$ E- I9 e) g {
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); [( b# {5 e9 Q4 c1 ]: n
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' S) \ Z. ? m$ o# o2 m( Y- {set i (i + 1)
# V2 d6 d( v A1 ]1 K) C]; U; ?& w& l; j$ l; m/ x8 O- Y
let k 0
) Z' h2 M8 B. h2 U; \- h& xlet new1 0+ Z0 `# P" y5 c4 l {- H
while [k < people]
1 v v. G3 `' W3 W: S" u[% v6 {1 H1 Q' U
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)
/ W5 _( f2 O+ H: Xset k (k + 1)) j4 n& b- O3 ^1 @! _* z( T
]4 w* D4 s% g% R2 E4 S& D( x/ f
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , ~+ Z3 I$ n: w/ Q/ H0 q$ V3 H
set global-reputation-list (replace-item j global-reputation-list new). B% W3 B$ h5 M" J
set j (j + 1); i. Z% B9 b6 A' }# ?
]
6 y( l1 I3 y0 V- qend; ^# w6 u/ w1 G) E$ A
( u% C3 F5 m. F$ j* Q, T- J( X
' w% I2 m! n, d* H3 S7 S
/ V# l7 o7 ?% K7 _+ oto get-color0 K x' j4 { c# H0 e# d& a
# K3 U# l d: Jset color blue3 i5 O9 D. G1 g
end% Y% o; @' k, M8 Y7 m8 t
# C" o: Q, [0 M$ D+ ^: Rto poll-class3 y$ T- @0 ?6 A+ [0 Q, q6 \
end
" H4 v& T/ A1 Z% b: P; u* r7 W9 ~5 X4 m# l7 I" Q) a5 L
to setup-plot1/ y' @9 z; o# O U
. `6 z# L+ n* @( ^3 p! m
set-current-plot "Trends-of-Local-reputation"
- X. m7 g U! X! [3 |4 p+ p5 R2 q/ L
set-plot-x-range 0 xmax( ]/ _' E5 }5 K7 ?" f1 N
' H& @3 d6 w# m* r5 F5 iset-plot-y-range 0.0 ymax
2 G& Q0 q. }. w' Y! Send
' C( u- ~ k2 i) r9 b4 ?, e
* M, h3 C' \/ {+ B4 j7 `4 H. Y% ~4 [4 lto setup-plot2' a# j3 o4 h+ D" {
7 s8 C# C7 h: {4 m8 p
set-current-plot "Trends-of-global-reputation"
3 p: s( q+ P; y+ {8 T q+ Q0 `" e5 G# \' a7 a; F& L# I& `
set-plot-x-range 0 xmax" K2 T7 N. E7 y+ _0 V
7 I I& V) Y: f& Gset-plot-y-range 0.0 ymax& ]/ ]$ V6 Q* H9 _ W6 f7 A
end* F, q9 h! Q$ ?3 T
' } g1 s" i$ V) i- F
to setup-plot37 \. w5 _. H; h! t6 H7 P
6 r% E: n& b9 uset-current-plot "Trends-of-credibility", i6 `1 |+ E% H$ q0 r- Y( _5 b
2 r1 R+ n5 B5 F) H) a/ F
set-plot-x-range 0 xmax
) A9 @* B2 [0 V# f' ]' b
- P0 i7 q/ X( ]& t. l6 p8 Z# ^set-plot-y-range 0.0 ymax+ X6 L- P5 F# O
end6 |0 {, d- x) j! O7 ]
& p- X% Q, N1 H! d
to do-plots
1 S) x: N0 e/ _2 Xset-current-plot "Trends-of-Local-reputation"; S) p+ [0 V- \6 K
set-current-plot-pen "Honest service": u& f2 r% g2 n
end8 [. a0 p! G0 {5 b" H3 z8 s/ L
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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