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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
& C0 n, ]/ j% I3 Y/ _globals[# i% g H% @/ }% ?6 x6 x' X- f m
xmax
6 }5 i0 C9 [; f& R5 Kymax1 u7 j9 `8 q7 J% P* R
global-reputation-list
- ^- W) q, ?5 [8 Q9 m- J' ^5 p; W$ D: W& _ `- G# W1 M
;;每一个turtle的全局声誉都存在此LIST中( t# y& }2 ?& M, z) u% G1 c' ?
credibility-list
6 g g6 j' U/ D5 L @;;每一个turtle的评价可信度
0 g0 F, H& W; q) Hhonest-service
2 V! l* |. q1 ~! X `2 F: Kunhonest-service! T* E- _! Q: Q5 |2 K4 i
oscillation$ F+ J& D6 h5 H$ h
rand-dynamic- w% X" ~3 `% D) Y3 J
]# k4 t0 R* E+ @0 F# H4 W; h
1 r2 l" s3 O5 I/ M, W/ j% S
turtles-own[$ w0 E$ h0 c2 E. T% @- X
trade-record-all
- r- G$ v& b2 }* B$ _1 B;;a list of lists,由trade-record-one组成
- w2 L( [4 _" Q+ Ctrade-record-one8 J. ^, G9 q7 R) V$ L! q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
9 @' s) l" j9 @
. _5 m" g& t6 u9 D; ?' O' w;;[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]]
& N9 g: h" D" Qtrade-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]0 a3 c, z; E5 {1 T2 q J% O3 F
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( H4 r. [) k0 `4 z r9 j4 f
neighbor-total
: U( O7 T9 G$ L) d% P* D& p7 F4 ~;;记录该turtle的邻居节点的数目
' t6 r& N5 s8 C9 E& Ttrade-time' _% }+ T$ w8 x$ X q9 C: e
;;当前发生交易的turtle的交易时间
, T* k8 k8 r3 ]6 v" Eappraise-give
2 I" p6 q8 j. X; Q3 {;;当前发生交易时给出的评价! P+ j& _; F, G; Z# x: z
appraise-receive
3 K' T. {) A1 o' M; D;;当前发生交易时收到的评价8 s* Y1 ]: Y9 [/ e
appraise-time
) B# {* J5 `- v" s% N- Q1 e V;;当前发生交易时的评价时间
. K+ x/ o' h1 Glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 q- B J H) v4 d/ n* btrade-times-total! q2 S1 ^, O2 X5 C' y
;;与当前turtle的交易总次数
: g, J6 w7 S' j# r. Xtrade-money-total
( S- t' O0 |, Q' ~, P& [;;与当前turtle的交易总金额
, ~, Q) W3 L+ C R' ilocal-reputation( N L* Q0 e. |' b7 a4 ]
global-reputation' w! E- H. A* g% u6 O0 @9 Z
credibility
& e! J' M4 g9 O3 c };;评价可信度,每次交易后都需要更新
9 G) T. O7 H+ ecredibility-all
V9 k+ o$ D$ k) g;;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% }9 i& f. M7 O8 @
7 l! T* c* v: o2 ]- ?1 H( f, e;;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
) Y9 {4 H8 ?0 l0 _ fcredibility-one7 L* D) }$ Q! u N$ ^' J8 N% |% C7 a
;;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
6 q+ g' g+ i$ C- ?/ h0 N( r# u4 Gglobal-proportion4 l! i. N( F$ k) l: D6 h6 i( V
customer' P# g/ ~: F9 a$ T; G9 p5 ]: ^
customer-no |+ |( S4 y. o) C
trust-ok
. k8 X) a* s* W& u% d+ U% Z5 Wtrade-record-one-len;;trade-record-one的长度9 a: [- T4 Z4 P# [7 j, E
]- v9 X2 F4 l2 \! `4 P
7 ]( d2 f8 r7 f e# u* [7 r& \;;setup procedure
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to setup
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& {0 S. \7 W C! W! i# eca& `1 `) ?* ~, n3 f" r5 o
$ P, C" V: j' W- b1 m) ginitialize-settings/ C9 N6 ]# f" K* x& n9 R# N9 Y
0 |8 e. \9 r; B- N ^5 `2 x. Z( Wcrt people [setup-turtles]
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reset-timer7 L: ]7 q" k: u7 a
" j+ k2 @, p* F
poll-class7 S# V1 p; T$ \4 ?
+ o" M. n- d' @. ysetup-plots( _5 `: p# O& ?' I O
* f8 M) O4 b0 R6 B$ t4 g' udo-plots
% O6 ` g9 T9 b/ [3 q2 Lend
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to initialize-settings
! r, ~5 i2 q, t3 G; _- j
" h/ H4 g; }" W" C5 s; v/ }set global-reputation-list []
2 A' H0 n7 e0 q0 H
7 D2 \1 a, @4 ?5 s% T; c/ ]set credibility-list n-values people [0.5]1 A" {4 \. p" F+ V
$ l, h1 F; D3 l! C
set honest-service 0
$ v3 {2 b9 Q: u! ]( N
5 p# c! E: }0 ]4 Nset unhonest-service 0
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set oscillation 09 l) B/ B6 s, ~% r7 q
4 i: V' H5 V- o4 s
set rand-dynamic 07 @7 P, `( [1 @" O/ {( H+ _' }
end
; N2 H1 y' P0 N4 B
# e0 m J: y- c/ B! \2 j% _8 Qto setup-turtles
" K6 F( @3 ^3 [( @; ^set shape "person": X$ y$ Y a' T, h
setxy random-xcor random-ycor
# K% l5 j) `6 j- Bset trade-record-one []
% J. l% I8 w( f N) y
! e9 w* X$ }0 Mset trade-record-all n-values people [(list (? + 1) 0 0)] ( [, x5 o3 D+ \# N2 X Y
& [; c$ k7 N* U3 ^
set trade-record-current []
( Y* u9 D1 i i3 K% P# Mset credibility-receive []
5 ~: A7 u5 Q; S1 O! ?6 \, nset local-reputation 0.5
' c( m& b3 x8 m, D1 ~. U) w( l, @set neighbor-total 01 K. n) y' X' M
set trade-times-total 03 ], e0 }9 i- I
set trade-money-total 08 @- D1 w7 H2 D7 P# m9 q" a# b
set customer nobody/ D1 b' }" u7 V4 Y! E
set credibility-all n-values people [creat-credibility]8 y( ~/ d& l& C- o3 `) {
set credibility n-values people [-1]% r0 W. M6 N8 B
get-color8 C% X. r9 G0 W! Y0 J6 M# [! i7 c& v
/ O- i% a1 p) S+ r/ W, ~. pend
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to-report creat-credibility# d6 J. [& r7 {& w
report n-values people [0.5]/ e2 S |% X4 e. D* E' N
end
2 ~% h7 a3 o% C7 V. l
7 g# X4 @9 I; C% a$ Z1 x8 lto setup-plots
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0 F" I* Y5 c/ y5 D8 p( o7 Xset xmax 30
! H3 g( U' Q: D2 d7 X' r6 D" l: _( d* H: f5 P, W! p* T) Y/ m; U! {
set ymax 1.0: j1 E ], l) P: m/ G! K7 Q
1 a y- R8 l* z3 P& M
clear-all-plots- l; g7 e( }9 f; \6 j& ?1 a( X' a
( X4 E3 O) j, E! ?" M8 C
setup-plot10 o$ t5 X2 P3 k7 S. K* @( a
% M ?1 W( i7 V7 v2 ~) p
setup-plot2
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! ?3 u1 A5 a8 A: L0 Ysetup-plot35 J4 ~( H* w7 V7 T& {7 n
end
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;;run time procedures( b9 O3 {( U) b/ p
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to go
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ask turtles [do-business]0 d2 \! e s" |; p c& Y& v6 G
end6 v; M r7 l/ G. c% C) u
0 j. y$ p; {2 \
to do-business
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6 S, i% x! j# v C& N3 U, [+ t" \, P2 I# r: B
rt random 360
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fd 1" B$ b* o3 \9 T0 Y8 A
; l; F# L2 i" i& a! W% M( Xifelse(other turtles-here != nobody)[( X- R$ n8 R' f! k
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set customer one-of other turtles-here
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& N( @, R, Z/ l! C$ ]" |6 \+ m;; set [customer] of customer myself- G3 a" l1 M" Y! Y" r
# L' @5 ^5 L5 N% P. U$ Dset [trade-record-one] of self item (([who] of customer) - 1)
( c7 S$ l# r9 W5 Q$ ?- M" O1 ~. _[trade-record-all]of self. d3 v3 s# t+ i/ {) J( f C, C6 j
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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. D5 ~5 w5 g$ K% J1 X& H! G y6 oset [trade-record-one] of customer item (([who] of self) - 1)) c3 I) Z, e9 X( y6 Y
[trade-record-all]of customer
+ a F5 ^5 p' a4 O
$ S3 d+ ]. b- z8 A0 W# V, K# `* eset [trade-record-one-len] of self length [trade-record-one] of self. Q, `% o# z0 H
% W }+ u" @( S2 C0 Mset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]3 \; x# G5 R3 a P
;;先求i对j的信任度
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if ([trust-ok] of self)
2 c( ?5 f( b' A& G3 R& _% N1 _;;根据i对j的信任度来决定是否与j进行交易[! [" o8 ^0 g1 |* k. s9 }
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
) `8 k# p5 n$ h2 f# v2 l0 D+ b' z& d. N/ D$ |+ l K. H
[0 ?1 _% e9 J3 I' W9 m7 U. F0 y
5 }: W8 L" x. R6 C+ udo-trade7 p7 D) m2 ~) B6 D K
9 x4 a* `3 Z' _$ n. u4 S$ H" C
update-credibility-ijl
+ W- ~/ s+ U2 `5 ^8 q p- m
- O# }/ K, Y+ X! ?update-credibility-list
+ j* o. N. u1 F# P, i. u2 g
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update-global-reputation-list7 ~3 Q! L# I- @$ S: I2 S# ]/ x
# k7 B- p8 y$ E: i7 R/ ^/ h
poll-class4 |2 l+ @* o* H2 [+ A/ K
2 D J3 l8 [; dget-color& |' g* o8 Q( ^6 L0 D$ |
6 G, Q4 X/ f; O9 m]]
* \7 V% I' I+ h! |/ I. Z' V. c |5 `' k: _- y. w
;;如果所得的信任度满足条件,则进行交易
* f- p3 n' V) S5 x* r/ a+ Y6 c/ ~( W# _+ F$ i( P) b- R
[9 _2 e6 u X3 S5 o! Z
- c7 q- q. ?1 B; ^% Lrt random 360- k1 Q. y) z+ J1 d' i( I( D
5 G# W! ^- W% Mfd 1
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]
7 E Y, U; P, X) S! K2 J
$ \; W# x8 Q5 D% p7 U$ ~7 Nend: s! h& ]/ ~, }# G: ?) u2 v
" b4 F* w' w: s- Lto do-trust
, g+ r3 V' s. r; L9 c" s4 E" `set trust-ok False6 B, g+ T: y% A* p: e0 }
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let max-trade-times 0 s& t3 i; N$ s* H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: X2 Y9 }2 R: `( Ylet max-trade-money 0- |! H( R: y, Y6 Q1 F$ P# ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, v D, h( l4 O" n0 ^$ c5 [let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) D: O1 ]% a2 k
9 T' O2 |" V4 p
: b$ j! c) `9 S9 S/ N n6 x/ _7 ~get-global-proportion
' n3 L* n3 S' c9 q0 B! plet trust-value: D3 t4 {1 [$ j$ V4 i- A
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)
- A# P, i, `5 X! Z1 G yif(trust-value > trade-trust-value)# p, O) A6 }! g4 T; R8 i0 \" }
[set trust-ok true]( v9 E7 d: i' Z# k2 i( K2 X
end- c, y% r8 k r" v! C
6 n* v+ t7 O. W9 @/ y
to get-global-proportion
! J" N# h6 y0 w5 xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! P7 G( N6 C3 B[set global-proportion 0]
" y \) ?7 m6 U# `" O- `; @8 _# g$ C- ^[let i 0, t% R2 T4 ]2 m0 T
let sum-money 0
& ^3 V9 W U' V* o& H0 hwhile[ i < people]9 _8 y4 I9 U- E7 L) ^+ M m
[
7 U1 a4 F; S3 j+ p$ Bif( length (item i
: R# P# _2 M$ J- v6 I% k[trade-record-all] of customer) > 3 )
' T4 w6 i6 ]8 c8 V3 T! D# f) S[2 |& ]8 i. h) [; r6 b2 r& C
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' {) y* y5 @6 w( g& ]! Z% R]
S4 K8 \, N6 ^]
K5 `2 Q6 x8 r; v" z5 Qlet j 0, ]: \) A- C' |: ~8 |1 x% X
let note 0/ G- m1 W9 `4 ?7 N- O
while[ j < people]& {1 C, D L6 D: n
[* b! r/ z3 D( V! F, O; A2 z$ ~
if( length (item i
4 b1 ~/ _1 P6 x[trade-record-all] of customer) > 3 )! A6 y' i+ L4 W9 { N
[: R) B& S' ]3 \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), h! O1 `( a1 \% P9 _2 D" x
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% O+ k; ~4 R/ z$ f% h& X' l
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' R* v, G2 X, n$ k* H0 L], _5 g# V- M; g- Z$ z' X
]
8 j' V* \: [. Y6 w |# t; Q& t; vset global-proportion note
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' V% A6 Z g q8 ?8 ?end! K4 { k' p$ i
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to do-trade6 j& T0 k8 b: ~) f( c/ ?& L1 {- L
;;这个过程实际上是给双方作出评价的过程+ x" W* \) x4 N3 v0 i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 I) S' m& O c. C6 T' z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ I6 D, p. a: x% r3 z, V4 ~
set trade-record-current lput(timer) trade-record-current& l2 x/ x3 D4 t1 U
;;评价时间- i, `+ n( @0 t5 H
ask myself [, `3 J: X) r& C& S/ t3 ^3 h! R
update-local-reputation
) g7 ^* z# s6 Q zset 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 myself1 E% w1 e- e4 p# U2 f3 }
;;将此次交易的记录加入到trade-record-one中6 w5 V; n% n, C, V; J
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, X# q$ K& f6 ?3 q8 B, l, d1 F/ Hlet note (item 2 trade-record-current )
/ F' ]) b' i; Gset trade-record-current
- ~+ S5 O- C6 {0 b# Z(replace-item 2 trade-record-current (item 3 trade-record-current))
t1 F# h% e3 R5 D, @set trade-record-current4 O) Q: q/ X! f2 G3 ?4 e
(replace-item 3 trade-record-current note)
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ask customer [% {8 @2 ~ _( ^. x8 x+ t$ c) q. c
update-local-reputation+ h- L; G1 j' @$ f- G9 p1 E
set trade-record-current
K( w2 x* t9 ~(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 u3 x- ~5 p0 P1 N( C1 ^) K]
' x2 @6 L" `$ p: ]& M9 H
& H: O) A0 z$ s( ], U, s' X' \7 ~/ ~( f+ ]1 k H% _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ {, H4 N' Z8 U# a7 M* G
" ^. ]1 i# M+ X. ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" I* D1 P5 _3 e# L7 W/ A: }# T
;;将此次交易的记录加入到customer的trade-record-all中
) {& q$ x+ b$ {5 O3 y/ Bend
+ _$ L0 T( T2 U8 K$ R7 U
N- l+ h$ Z ?to update-local-reputation
" W# \6 Q. j) m$ L0 o( n. qset [trade-record-one-len] of myself length [trade-record-one] of myself+ u+ J, n# {/ `* C
9 \5 B! ?6 w: N' B% t( }* G u4 e$ R1 X6 u4 j; ?7 X% ]
;;if [trade-record-one-len] of myself > 3
2 l8 A: ^2 f# v- i5 ?. wupdate-neighbor-total. B) ?' N. ^2 \' q* H
;;更新邻居节点的数目,在此进行
: R3 y# R# i4 Y* j/ S0 Xlet i 3, h3 m1 R' [0 g# U+ |7 z1 H/ F- y
let sum-time 08 k6 @8 j z3 j
while[i < [trade-record-one-len] of myself]
$ m, T9 l/ g4 `& Z5 q[
9 l$ Z$ G4 {* R2 bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). Y# V; p+ C- J2 @6 u3 C. ]
set i- d C6 Q8 E: i. Z5 d- c9 |4 ~. g
( i + 1)% F6 q% z2 l5 o% c6 z& S7 f. V& t( U
]
. W6 ?! G9 D3 z8 X8 l3 U1 nlet j 3 K: J- s& t$ j2 K! q- }# q
let sum-money 0
4 a) u* M8 |% e0 Twhile[j < [trade-record-one-len] of myself]
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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)
/ e8 h# e8 ~& S; N; i% C; Eset j
- c: g1 `5 e5 J6 c0 E( j + 1)7 q4 A5 r, t' r& `- o
]# V- x" V H) [& ]+ `, j
let k 3
& O) {! N# Y, S, v+ rlet power 00 @9 C2 D* ~3 S
let local 0
% J& Y$ l9 L K5 l4 J% W: Nwhile [k <[trade-record-one-len] of myself]
5 F* l+ {* V- q: c[- ^" Z: m( z9 V8 a) S
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) - k( ^; C& ~6 B4 l6 V+ J
set k (k + 1)% T$ P; o _/ n. f' m/ O
]
* J8 I$ G! f3 Z4 Yset [local-reputation] of myself (local)4 ?3 x& ]3 C" w% d& c
end% M: x( b8 h& Y5 L1 E
- p# b, M% S3 H2 n S) I% X0 F1 [
to update-neighbor-total8 }& T) R3 k6 x y) Q5 ]
; N4 w2 B# {7 | y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
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to update-credibility-ijl
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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 K4 O# U/ z+ L- M' V
let l 0
: G6 c X ]/ v# X# Z. k8 {while[ l < people ]
# U* p1 f( s3 _* p;;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: ]' P7 @7 ?2 U) \* a
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 D' ?3 a6 |& G# W
if (trade-record-one-j-l-len > 3)
$ Z& d& |/ e% k[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 U( H/ P( Q; K# I5 ?" Tlet i 3
& _( |' k O) M& V8 }let sum-time 0
) o4 @$ r% ~+ a) Z! x8 T3 ^while[i < trade-record-one-len]& O( x* d) B7 G: B4 T. f4 O" Z4 U
[
3 z: {; q8 O- Y+ T$ Z* j+ zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' D/ B* H0 {8 z) j r- t1 Q* Dset i
) _1 z& g+ e# c9 r3 L& n$ F( i + 1)5 `8 r! P- b f, D
]
; h" M* W/ I1 B2 t2 Llet credibility-i-j-l 0
- D X) i, U0 M% ^! Y;;i评价(j对jl的评价)6 {0 _; [5 i% N# L8 ]& S0 {. A% [: o
let j 3/ A/ x) N5 S% w. S
let k 42 }3 k6 ?5 a7 y. d: t, D' _
while[j < trade-record-one-len] i1 K/ B; I; T! r4 b4 ~+ f1 p& ?
[
: N" U* h( n/ Z7 R6 I$ bwhile [((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
3 h& ^7 m) }# r3 X- K1 Oset 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)+ ~ X N% P$ h
set j
; X- u/ n8 V: `5 ? w3 n( j + 1)
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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 ))
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' c3 o7 i0 `/ c S0 C1 _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! ]2 }$ l5 }( `/ K4 h+ Q
;;及时更新i对l的评价质量的评价. A0 \% W \5 p6 k2 F g
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# ]9 p( V% C* x/ U7 T/ e: }set l (l + 1)" O) o. C* w$ f4 s
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end
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# e. |6 k6 _4 e2 ^4 N; H" j( [- Z$ fto update-credibility-list- S- o8 U4 V! G7 z- R. M( D) r5 F
let i 0/ j5 K: f/ L6 d" O8 t0 G h
while[i < people]( H% q* f6 q* _& ^
[
+ n7 x' q& X# Z6 v8 N3 \. a/ o- nlet j 0
' V6 _% G( X7 D. F- wlet note 0
6 n2 q6 O( D# hlet k 0
+ w) e' X2 b) g. N( V, b" \;;计作出过评价的邻居节点的数目; `& Y/ T+ a9 e
while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1): Z1 G1 q7 j: u( w
;;判断是否给本turtle的评价质量做出过评价的节点
- V6 z6 p, y- e/ d M R) y[set note (note + item j ([credibility]of turtle (i + 1))). J9 c) B1 R3 ]& {1 @
;;*(exp (-(people - 2)))/(people - 2))]
5 ~/ h* V# Z! y$ m4 E! jset k (k + 1)
3 ^+ [, n3 z1 R8 I- L/ U]: x2 ~* Z; E. P6 l8 W
set j (j + 1)
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$ P7 s |6 y+ \' S. e9 d( i+ Hset note (note *(exp (- (1 / k)))/ k)
3 z( I8 h5 Q2 `( zset credibility-list (replace-item i credibility-list note), \, o3 n4 U! C3 D. v" F3 @% R
set i (i + 1)7 c" l/ e( E5 F# r f- D/ @
]
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- n* ]1 G4 f" t) ~9 tto update-global-reputation-list3 A' C, P$ k# [& p3 @0 J
let j 06 S$ g: y8 M# [) S( F5 m
while[j < people]
R* d) ~8 M3 q* Q# Y: ?% m7 x[
0 f7 A/ u$ R" a) ?6 v0 llet new 0
' d/ W- M( X' w;;暂存新的一个全局声誉% ^& O+ k! n! J! {- F
let i 0
6 l, B6 S* y3 j+ n1 }/ F( llet sum-money 0. S8 C' R5 y- ` }: F
let credibility-money 0/ C/ x/ ^' Z* }2 W; F. {9 I2 Q
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 x- Q ^/ H4 W9 Dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 Q7 ^$ e/ B" `' e; L% Q6 C! y
set i (i + 1)
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let k 0
4 i9 f- [6 j' l+ G- slet new1 0+ q7 L1 [. c. q. y
while [k < people]! `: B( Q* E3 C& q+ }' a
[
2 d: I6 a c) o/ H: Qset 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)7 [* u; x5 g6 a7 |0 V. F
set k (k + 1)1 @6 v& t3 I" C) w% g9 \1 Q
]. F! {" _7 T; E1 R }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! S# [! X1 A7 e$ V# [8 [
set global-reputation-list (replace-item j global-reputation-list new)
- D# P3 s! t& U, o- K7 Nset j (j + 1)
+ v2 x8 w. s& E! |5 w, W2 k$ I]# r. L1 W' _; }. N' k$ Q! j2 ~: i
end6 X" O$ {3 r( o6 \
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to get-color; B* N* \$ [* v- G0 h* n& k
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set color blue
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to poll-class: l/ [% F3 ~+ l0 ~% Q+ p
end! J$ Q; a. k: M0 t& U" D
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to setup-plot1
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) D/ d) ^) [% b( L, @6 V7 I: E1 f7 uset-current-plot "Trends-of-Local-reputation"5 w$ N, P2 k' Y+ G4 h
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set-plot-x-range 0 xmax
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% ]" h/ I/ F5 `4 Z$ `set-plot-y-range 0.0 ymax
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! Z0 \" n. G3 Q$ S3 t5 P( a/ Tto setup-plot2
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set-current-plot "Trends-of-global-reputation"7 ?- W& k; ^5 ?( ~; u
! |2 K5 ?1 V' Q6 a* K; Eset-plot-x-range 0 xmax
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/ E0 Z3 ^5 S2 @; U, G' B, ?3 m3 X' rset-plot-y-range 0.0 ymax
+ `! V6 ` X( n% bend
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; O; L+ O# c0 N4 Pto setup-plot38 d# e8 i) d- O% V1 V
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set-current-plot "Trends-of-credibility". v, s& X& w8 V, u
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set-plot-x-range 0 xmax
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- u$ {/ f0 }# k$ f p5 L4 y+ Oset-plot-y-range 0.0 ymax/ E3 `; z7 ?6 B& R
end. b H( k' N5 ?" e) V# K
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to do-plots
f" D' R1 ~5 q6 b/ \set-current-plot "Trends-of-Local-reputation"" {& k; s# j. ]
set-current-plot-pen "Honest service"
) w4 p8 F. A$ `. c8 |- K* aend
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' s5 n" m3 v' e5 @# @! b[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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