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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
1 ]9 r4 V& f* `( e% c: Yglobals[, i0 m' W2 I. H% W/ G" z7 Y1 K
xmax
3 P$ C5 b1 T/ H6 {' b1 f: F6 G- f6 Bymax# _9 h) ~0 P' ~$ H; C% q6 V1 z
global-reputation-list: ?. v5 ], t2 }* q
* b5 J) n' [: q1 A c
;;每一个turtle的全局声誉都存在此LIST中. D+ M" v- q1 W _/ z' t7 K
credibility-list
`- W. x8 I- Y! u;;每一个turtle的评价可信度
4 @: g4 t: E) g0 _honest-service( M' b8 V W1 E6 j6 R: p
unhonest-service
& n! d2 @+ T2 Q1 m6 y* g. yoscillation
! J2 z p2 k+ |rand-dynamic) _2 a( e& h2 x. x8 H; v# v
]
- [2 Q$ [& U7 p, ^8 f% R% A4 f0 y$ G
turtles-own[) o' F/ u) s" e' o* \
trade-record-all" E" y8 m0 T5 z+ u, q
;;a list of lists,由trade-record-one组成
6 P+ i1 z3 s, v$ [( R' u6 o, k( V P) _; Ttrade-record-one
" {+ N. N& h' |. s;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, _, V- i) ]* x9 I, L7 t0 v5 b. y8 w1 f& Z
;;[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]]
: R9 M# Y- d9 E6 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]7 F/ }& X! y0 a8 ?6 [
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
; n; l( w; n7 g8 \ u! a0 hneighbor-total
. j8 m' d/ q# p7 c9 R;;记录该turtle的邻居节点的数目 e6 _' c' f7 L4 p6 h8 X
trade-time
1 b4 ]# S0 X0 ?: i8 n4 l6 I5 E;;当前发生交易的turtle的交易时间; L5 C4 o" A! E8 d Y1 a/ _
appraise-give
+ K7 Q5 o- p9 c w;;当前发生交易时给出的评价5 J7 o t% [% G/ y
appraise-receive
: ], F. m6 p+ v) ~" p0 t: ];;当前发生交易时收到的评价
; F1 e+ F q' l$ \& n4 \2 Uappraise-time5 k9 `4 M% q) m, F/ R# H5 C! T
;;当前发生交易时的评价时间
. m7 w8 X3 G" n- E7 Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉4 o. o. I5 T& k: Y
trade-times-total
; U9 I1 l v4 S4 W% V;;与当前turtle的交易总次数' e R4 \. ?1 N
trade-money-total
) w; n: v9 q% J0 r% L;;与当前turtle的交易总金额2 V8 X$ }; g) ^/ d0 |* q' b
local-reputation2 H6 S8 k. Z# J+ J& Y# \9 L3 \' I
global-reputation
4 W- n0 J6 e8 S! E/ m" J/ Icredibility
& o4 o4 i; [; c* A' J! ]6 {, b;;评价可信度,每次交易后都需要更新7 z3 z/ @/ `/ |% j a( ?- D; G0 Y
credibility-all
! ?- a$ p+ }+ T! g1 ~5 q;;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+ W% z8 p0 K. Z. z6 v: i# S4 R
5 U/ D& @- _2 G9 w2 P) n% z;;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
9 \9 q! e4 `1 D j% x/ P: F4 wcredibility-one
: U* y! ?- p- F. T4 T/ V9 X( n9 m;;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" v! u+ p* X% h0 f1 j) U# c a8 S
global-proportion
- O, O( X! [7 m3 U0 {customer U; {* r3 T: n* L
customer-no
+ r" j8 L" e( l/ T y: K) _2 [ dtrust-ok4 O' p0 H+ I3 e( d2 _" c
trade-record-one-len;;trade-record-one的长度
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2 s1 ]: G$ t- W3 m8 y
;;setup procedure) H2 q9 }& p" G0 \! H
/ J; Q1 [: ^2 Q
to setup
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* K/ e6 m# b$ V: D0 C1 o5 w" f' ~initialize-settings/ H4 C2 z+ o6 t' _, K' g7 L1 C- D
: |+ F7 s, r$ t% \crt people [setup-turtles]+ o+ {" ]9 g2 Q3 |4 S' ]- u: P# @
. U4 t6 o' ^2 i1 k& [. @2 Preset-timer
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poll-class# w7 H- M: L! d Y
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setup-plots6 m1 O8 m* I: Q( G3 Z
# A8 }/ o1 x/ {. T, b* R% j
do-plots$ A4 f' H" ?$ x( C7 W. \9 }/ v
end& D; ^# Y! ]( z( F* [% s
5 o- Q$ C2 v r' u* [8 ^to initialize-settings
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set global-reputation-list []
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' k2 M) t# a% X/ ]' t. _4 @( jset credibility-list n-values people [0.5]
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set honest-service 0: f: ~2 o% |8 f6 w
$ N, X; n4 M' D0 U! aset unhonest-service 0
0 r+ N& S& F: f0 I- J/ G4 [ J$ V# z3 i& B' Z$ {
set oscillation 0
5 c* j; b) C2 R( {# d+ `
" a9 l1 G( I# }* K% a+ Eset rand-dynamic 0
! c' f2 _" @! s+ pend( J8 _' ]) Q( j2 o% R2 D, T% m9 a
- x) V* }, @6 a6 o! ~to setup-turtles
' A) v8 g% t8 \, `' M zset shape "person"% ?0 M$ s6 I( n" H
setxy random-xcor random-ycor: d5 R- y D5 S' J$ \( U7 o
set trade-record-one []& @3 L1 w0 n8 c) J+ y
# C' O* I' O. Q! J8 C1 r% J
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
: s ^; @* [* G/ t3 yset credibility-receive []
! [3 o) W; O* v- O; Gset local-reputation 0.5; f- S6 d/ S- Q/ m- ?/ u" s* f/ ^9 C
set neighbor-total 0% P) H1 X3 ^! d4 P9 t4 x1 F6 o/ _
set trade-times-total 0$ _- ]9 ~) E0 ] w/ O6 }
set trade-money-total 05 G% }0 r3 e& ?9 N6 I' J! Z4 r
set customer nobody0 R$ U( L1 T, O/ X o) [: v. I, Z
set credibility-all n-values people [creat-credibility]( S' i! M" T4 E& {) N- w- X1 x
set credibility n-values people [-1]
5 _4 c W7 r |& q+ d* r, oget-color6 U; B- ]8 u" `. E
9 z9 D) A& H$ G, h c6 Iend6 P8 R) ~$ ` P0 o
, b( J! g0 \' O" B7 E( E0 bto-report creat-credibility
0 L, n, h. Y5 a' M# ]report n-values people [0.5]$ }4 A( _. ^) ~0 F
end5 p- y0 b) C# \; @; {
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to setup-plots
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0 [5 m' s, Q2 E7 C! p. v8 e" r1 Pset xmax 30
5 v j. n3 r+ A' s* M$ j8 Z2 F8 s; q; J0 c, Z7 s' \; D
set ymax 1.0
( {: R& k0 ]" V+ Z2 n' l# m+ V* v
' F/ \% l# y% oclear-all-plots
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setup-plot10 Y" ?7 @1 S4 G# s5 Y, m9 I
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setup-plot24 I; g8 U6 o+ O8 F8 c( c7 H% M6 N ]+ b
* Z: A, c/ n; q
setup-plot35 E# M6 X! O/ |" |% g- _
end
4 E8 }. J4 F) e; @5 o5 ^7 h0 {9 w& I; d/ N: |
;;run time procedures, ~) D- V; i, ^2 u x
4 j# T" R: U9 A& B
to go
% J" F- Z. x, d2 ~, p9 r- i4 Q, F1 M+ S) ?! R2 [, t
ask turtles [do-business]
# d0 |. V. J# g! M% N Hend/ O" v* S' E7 |
% ~. C2 f7 m7 z# Z5 M
to do-business
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* D8 \6 a! H' F0 i9 q d% v8 l. z# V0 k, C; n% X! p% i
rt random 360
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fd 1
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ifelse(other turtles-here != nobody)[0 M, Y3 [; n3 d1 g
' X) x- _5 ?/ U. i: R3 w
set customer one-of other turtles-here0 F# K% r6 A, m8 o' U# w) A8 D
e' E% f" X5 q7 T/ ^
;; set [customer] of customer myself/ I- W5 d3 [2 Y5 q
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set [trade-record-one] of self item (([who] of customer) - 1): e' X y# A8 \) a- g) s
[trade-record-all]of self6 k/ Y u9 ? X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ b8 P+ T( K7 j: u; Z- Y
/ }2 L9 Z; X# V; _% z* |! mset [trade-record-one] of customer item (([who] of self) - 1)
& h" D$ |0 C% D' ]/ |[trade-record-all]of customer
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! c0 }+ C$ `5 L' s) _% @4 z% Y7 jset [trade-record-one-len] of self length [trade-record-one] of self
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4 _% j0 b. m# s. u6 Q# H5 wset trade-record-current( list (timer) (random money-upper-limit))$ P( f/ [+ K Q0 `
. c/ P/ s- E! B, z8 _7 O8 Cask self [do-trust]$ i4 \% l+ R5 K( [
;;先求i对j的信任度" @4 ]7 o" V5 d ^+ O" D
& G0 B" ?& Z# S) \2 U$ dif ([trust-ok] of self)# v! @5 n; n# [5 j3 |
;;根据i对j的信任度来决定是否与j进行交易[7 S, N+ d7 W$ \
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
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do-trade
?: F" N& H0 y& e! X6 K- `; B8 ?0 u3 l
update-credibility-ijl
, S+ S3 j$ H: `/ h$ v
* r+ K, q4 b6 e8 ]# V, c6 dupdate-credibility-list) _) _# V5 y+ E2 |" B
( {+ p% B% R5 [$ J( l' e7 u/ Y: d3 Y) O$ H
update-global-reputation-list
d4 ^) Y9 _' w1 V9 s4 O& Y" [( u; e! n+ | [6 g0 `
poll-class( x" q4 z- a+ l5 Q7 ]
# r% p) p; q7 O! @) |
get-color
4 y' W2 H7 E- T0 j. r @9 s
; z* ?# ?. p+ T Y/ t ?& n. b9 R7 |]]; A$ V" m m: \! s2 N
! f. u( U& l% N; n;;如果所得的信任度满足条件,则进行交易
6 [. ]" O* x6 ?0 ` \1 c2 v2 \0 e' c8 R) _7 v( I) u9 H
[
9 D% e% W( S; s! }( A0 u4 C/ j, X: ~' F0 G" b/ K! h2 m% W
rt random 360; o2 w+ X. W& u/ h* z {2 @9 U
" ? ?% |2 G B0 k, F8 C( E( p5 P
fd 1# V9 `& D3 M( B$ @4 ~: W( W8 S
/ a) _; d7 T/ d# Q# d- ]]
0 V# N- k5 G( B& E
: D: l* z9 q! x- F8 W! f4 d, E3 E' m oend
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to do-trust 0 \8 p! |4 y3 j8 P# w1 B8 j
set trust-ok False8 c. A+ j. V5 Y9 N# D
}9 o( `; }- N
" K# s1 Q* Q( e+ {: \* Q2 V9 ilet max-trade-times 0
4 O. C* z7 V8 S- C. h- }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 J% F& G C7 m* ?' W, ^; I1 d
let max-trade-money 06 C; Z0 ]2 _. ^' l" d+ V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ c! l6 A0 k( zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# H2 F; V5 N% O, Q6 {% {, Z
1 ~7 J* \: i& J d
3 K4 V4 a: g8 k0 L0 A" nget-global-proportion2 Z( r3 l* z6 _8 [4 J& ~
let trust-value( ?1 v5 x' X; Q8 K; B) ?' ^
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)
; ?' O1 b' k' \0 w+ b( [0 N$ jif(trust-value > trade-trust-value)
5 U9 {7 w K% x. Y; v[set trust-ok true]: y2 E- H! p& j& J( _
end- R6 l+ S! s2 |+ N N+ m
9 @2 y5 W. B1 {' Dto get-global-proportion/ h) Y, J& ~4 q* ^1 P/ P
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); |5 M) q& [5 G6 y$ ]$ Y- I, [$ x
[set global-proportion 0]
. V& y5 G7 u6 a5 P[let i 03 _0 C0 `& m$ b1 i* t; V
let sum-money 0; [" A) P& V) ?
while[ i < people]
% m+ M* F6 L& N( n3 f[
" V6 U k) a1 r7 rif( length (item i/ E, ^5 y) S+ A' Z) e
[trade-record-all] of customer) > 3 )
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set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 M$ e( W1 E$ Y/ Y9 x1 Y' w2 i8 Z
]
5 A/ u% S7 q4 V]- g3 s8 H7 s; k) v2 i, n( f) n
let j 0# Q k# W g" U# d5 g- ^
let note 0
% w! W$ _" g: K7 F0 m9 {5 vwhile[ j < people]
7 B# s5 x) u6 t. A[
$ @6 ^; s, y) K. X, Vif( length (item i
! m0 q' Y5 [/ `/ M; d5 { u9 ?[trade-record-all] of customer) > 3 )
+ j& U; u3 n b( _3 f" B J5 a. o- A[9 ]4 v! P- ~, f/ B; S1 x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 U/ b* D0 k5 e1 z6 s) y4 T[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
}- G/ V U# Z( I; Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ k& f* v6 y0 j! W: I
]9 N6 |( K0 a+ _
], S, ? Q. ]# l, v* |/ ?
set global-proportion note
9 k7 z. |0 p3 k1 b8 b]
0 u4 k3 l4 z. iend- y; h6 E+ j7 L; }; {8 O
* N, h% O! \! b4 H
to do-trade" |6 s$ Q) f# `3 n' _$ t! w Z
;;这个过程实际上是给双方作出评价的过程. a' [4 d; I" p1 k; \. I9 w6 O( `3 t Q- Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# H7 r ^4 r- T+ K! [
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: M" {# Q+ F" K4 N6 F$ |2 \/ B( b" E
set trade-record-current lput(timer) trade-record-current
0 C: S/ g( Q! F: P) ?+ M;;评价时间. r- L, ]! _' ], x" a/ d; I
ask myself [' ]' w0 m1 N: ?2 a' X3 Y s
update-local-reputation
3 K( M1 y" I- F3 c+ Xset trade-record-current lput([local-reputation] of myself) trade-record-current
+ Z0 O; O3 j Y* ~0 G1 h* i# N]
) @; T, x4 a: r8 I$ ^1 w; Y% P* vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# X4 T1 P- {* l) _6 g' l
;;将此次交易的记录加入到trade-record-one中
3 K, [) r+ c4 s4 v' ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' R+ b( s# e0 U- j- Ulet note (item 2 trade-record-current )
7 y' Y" Q& m* m: U" gset trade-record-current. L6 m& R8 Q0 w9 V; ]9 ~
(replace-item 2 trade-record-current (item 3 trade-record-current))" h" d4 {+ G/ C/ n5 i
set trade-record-current
* d/ R; U) e$ Z) w! t( G) @3 o(replace-item 3 trade-record-current note)
. I3 n* [+ y6 i" A! ~9 c ]+ x
1 A! `/ s& b7 H9 d& Y
6 \9 X' F, W+ d2 W: [ask customer [
0 n# I! n0 {! r1 uupdate-local-reputation/ ^& X- Y" l/ q8 t: {3 s+ m K7 h2 _
set trade-record-current. |4 T; o! o% W! ?
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
p8 G6 `0 p `# r' d/ p# i], X! ~& f- N' z# g
. L" H. Z% n6 C8 d$ y
# g: X0 J1 z" d4 [$ K$ j1 ]# W
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) _" [6 i& a. v' Q- k! u
" v9 O8 I1 R+ r; W7 s/ U* F2 S8 Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
5 C5 i4 q) ^* M; T6 m9 e. ?: M4 n;;将此次交易的记录加入到customer的trade-record-all中
5 u& q o; j! g" u+ t4 Kend& T& F: f! ]% o) C! N9 D
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to update-local-reputation
0 p; q0 C2 D) h3 mset [trade-record-one-len] of myself length [trade-record-one] of myself+ @7 w- }9 A7 N6 \, E
9 ^% D1 Y; ^( _9 L. V8 S7 u4 e, A
5 `. x+ I! X. L [;;if [trade-record-one-len] of myself > 3 , c% T/ r5 A) z& w6 e6 m
update-neighbor-total
/ Q- o/ s1 {3 O7 J' M3 l;;更新邻居节点的数目,在此进行+ b1 u1 J' k) G
let i 3
- n& K; v2 {, n0 ]9 m1 zlet sum-time 0
2 }) X. g! w- u% y0 C0 E5 {while[i < [trade-record-one-len] of myself]+ S- W* y6 K! a5 c: o- m
[; d5 @/ Z2 E0 | x% z6 m- g
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" H }( J& v- H# h
set i7 N. x0 V9 c* `
( i + 1): M" x/ L, L: x' J% z3 l0 B
]
5 \) U6 T9 K+ U2 @3 D0 p. V! olet j 39 @7 Z2 r6 @% b2 h
let sum-money 0
3 T% y" m; z! I: c2 K+ w5 ?1 Bwhile[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)+ b8 o2 i6 }1 L+ R) {
set j \! b: Y/ L* @, @" I
( j + 1)
, L! Y1 c, ?, U8 d+ V# E# w+ t]: N6 Z- }7 j" y3 o) Y" {9 F
let k 3
2 k& k, a5 G4 b; X4 u3 tlet power 0
8 Y6 A7 p3 i; B0 k. M3 plet local 0 y# o* ^/ s. t3 X! |5 `) ?
while [k <[trade-record-one-len] of myself]) r9 L& E) r! B+ Q8 w1 [
[1 k, _# j" ^0 D
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)
# `* j D/ H9 O' ~; u% B! vset k (k + 1)
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set [local-reputation] of myself (local)# C q) D, A+ `8 X& @
end
: }, c; n) t& n9 i
. i- t" v3 V; ]/ fto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ i, v! \1 _/ C* y7 W }4 _& J# X( `
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! s1 A' V1 r) |
end
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to update-credibility-ijl % S# e8 g8 R( G1 u* R! _
1 V4 D+ v/ ^4 F, B* H
;;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。" k2 R& j- Z) S2 z% n
let l 0( n) p' ?: s# o: K
while[ l < people ]! g2 q: Z8 [$ h5 f, E1 ]
;;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% v! _! D6 l# W- ? f+ b
[
" T* W( e( S7 h3 Ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( K' ~( R u" ]2 Y0 H6 o1 `if (trade-record-one-j-l-len > 3)- n* b. Y4 ?+ T& H9 Q8 N
[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, J5 |& {; q) c0 J+ C
let i 3
) {! t4 n% P% ]9 elet sum-time 0$ l0 Y, ?, [5 i. [7 C+ d& m
while[i < trade-record-one-len]/ ~! A. o& g: Z; N7 E7 M- \! v$ `
[# l- U& |4 K7 t. @" y, H2 v
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; C0 s! j' D+ U* n/ W) eset i
4 J5 X' b7 b$ y: _; w. F7 y( i + 1)6 e" V; a% k1 T
]# ^9 A& T3 V- U9 s( Q
let credibility-i-j-l 0
: N5 @ W$ y: O4 b! ?;;i评价(j对jl的评价)* ^2 u( {8 Z k( v* `! p5 r
let j 30 d$ R6 l. W" H) k6 u
let k 49 z" r& m2 a9 W' T+ t9 H8 ?
while[j < trade-record-one-len]
2 _- V% n7 h9 H. A" B[* ]) {+ U" u: U' _; g
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 Y) w4 z9 w1 W4 V Y, x8 l; xset 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)8 F! e& C+ e% K, ]/ t, I
set j3 z+ k6 y8 q1 e3 e" O. R
( j + 1)4 c- Y4 G+ G; y/ [
]
$ [0 l& W* Y) V+ kset [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 ))! e( l. b! j2 m4 E4 Z
* F' Z; j) T9 l- x: n7 l5 Q
- d% M# A# v3 y H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))4 z7 @ c( J5 k( K
;;及时更新i对l的评价质量的评价
* v& a% s" I6 K# k' Vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" D9 u3 t6 X% [6 W
set l (l + 1)1 p: V) z+ S$ b6 f" M3 q
]
$ r" R+ f- \2 k9 X/ d* \/ gend
" i# K! _; z3 ]2 u+ p- R* D
- Q0 j' l8 v1 j+ ~# J V" \& Xto update-credibility-list
4 [% Q! u$ V; flet i 0# d, P3 x% |& |) q, J
while[i < people]
8 M( |$ v5 L) S' p[; H5 E- }* p" {" v( e# S" u! c3 a
let j 04 _" @2 P: l5 c, g) B2 B
let note 0$ A. S7 h* T6 x! h1 F
let k 0
- q8 W# O8 y, Q( a+ A1 M;;计作出过评价的邻居节点的数目' W N2 X3 [5 \: a2 j
while[j < people]
! u, [$ ^0 f* E' m[
4 f2 Z y; I4 z3 B5 l2 b1 Wif (item j( [credibility] of turtle (i + 1)) != -1)! D7 b& x7 Y- X" [
;;判断是否给本turtle的评价质量做出过评价的节点# K" ^# e" o0 g( U0 ?: ]
[set note (note + item j ([credibility]of turtle (i + 1)))% m$ z. a; P7 q" F9 |7 r9 P2 v& ]
;;*(exp (-(people - 2)))/(people - 2))]2 k R+ W5 N% j) b+ O1 x. ?
set k (k + 1)
; k3 |! v4 K9 d& m3 M5 o]
: G% o% ?$ \; u, S; z7 Yset j (j + 1). X4 f7 v" K, B' a
]; w; P5 r2 i" F- i: @
set note (note *(exp (- (1 / k)))/ k)
$ G2 }8 T* o2 c9 @1 Xset credibility-list (replace-item i credibility-list note)4 P( ]9 y4 f6 W1 |
set i (i + 1)0 B# G% j$ s4 G I
]
$ W7 }$ ]. H* a: F$ c$ F" _) w; X, uend
1 d% T2 @8 l( J& w( K
# F' ~) }8 U7 p! S! ~6 \to update-global-reputation-list' }0 q p$ ~" Y6 ]
let j 0" g: `. s& }- T2 q; E8 J$ x
while[j < people]$ \- F( H) @# T) r9 Q. {
[
- U) M) u. h" i0 Q- x5 W7 \let new 0! ^6 P8 u. e, D, E9 f7 m. i- w
;;暂存新的一个全局声誉" p# n6 q& g+ [% x1 Y; \& v
let i 0
, f0 r8 x9 p5 C K5 [) u+ E0 `let sum-money 0
! `# h6 N5 e3 S1 olet credibility-money 0& | J) o; m5 k
while [i < people]
9 h9 k3 T. [5 q7 f[
/ ^2 j& {& E, M& c+ Z% t/ Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; e* ~3 v) Q9 Z6 s4 ?+ pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ Z s7 {" K% |1 z0 gset i (i + 1)
, A t! P% P' t0 r]% U1 G; m/ {6 Q+ b$ k
let k 05 W: e1 K" V3 R0 S5 }9 L% Y+ M
let new1 0/ t+ R* |6 Q$ S0 ?( k0 j
while [k < people]
4 j7 o8 a) L3 l u# X+ D/ d[
% N D$ D' r3 ]/ B( \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)% c! @( k; D& Q6 t4 H/ e
set k (k + 1)2 y" l% B8 @+ j3 f
]
( g, ?9 I3 S: \/ Oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 a- N4 N: P2 K
set global-reputation-list (replace-item j global-reputation-list new)- }- I+ K; K* a3 p
set j (j + 1)
9 r8 X1 B+ t" H+ p; B0 N( o8 ?% @]
4 X8 M/ m Q6 s6 f) n0 N1 U$ Aend
# j0 M1 j/ K! c2 d( T) K- }8 Q$ I) i7 q L' h+ k, L# b
; f2 F3 Q7 k7 L d& ?, q
' a9 B- h! M* R+ {8 E* {0 K
to get-color
O9 `+ _3 l( E5 s2 j# D7 j& h" Q
/ s0 M: i: W v/ M7 {set color blue1 }5 _. B. m1 z' N8 j+ u0 M
end; V5 `* j2 o* t" |/ P6 P1 H7 W
5 U! C7 P( k7 a d0 k$ ~to poll-class1 i4 K0 a. t* {/ t; }5 G
end
% E2 e. t2 m& m. O5 k) K% ]% m( y! M8 X2 G
to setup-plot1* T- L& p; M8 k
# c% z( N* w7 X% W
set-current-plot "Trends-of-Local-reputation"0 T( n: h4 S y- }! s
: R: {1 S& V- b L$ mset-plot-x-range 0 xmax
& `2 M" K6 {& k, k. H3 }. y' A+ X( n( T" A) ], H" d
set-plot-y-range 0.0 ymax9 e# V8 Q( t6 Q0 J# }
end& ] N6 F9 i: b
j0 m) F$ R- f `6 ?1 Tto setup-plot2
7 W$ _7 [. N3 t" e! z; z1 f* E8 T9 o: {5 ~3 m0 ]; a
set-current-plot "Trends-of-global-reputation"0 F! P2 I- G0 _) p( \9 L1 R4 G6 s4 b4 B
; v* b7 O) \2 c7 z! `% S9 g; \% R
set-plot-x-range 0 xmax1 C6 H; j) w4 w; n
) N- G! v8 U1 x. B: m, N1 i( w8 v
set-plot-y-range 0.0 ymax
; h" a- a' J) o9 Kend
' x/ h/ d' D& R, x% Y% Y, e9 R4 U) x# I% {
to setup-plot3+ A) g( `- z+ A
, m- C2 j- w0 K3 Y' Y" J4 Sset-current-plot "Trends-of-credibility"6 j1 R' z% H8 w$ n9 x
6 E: p" F" i! e3 ]4 c5 xset-plot-x-range 0 xmax0 x" H5 P! y. `; _7 h0 g5 `# Y4 K$ [
8 Z9 ]8 T J) P5 m) h" U7 u
set-plot-y-range 0.0 ymax
$ ]) E% H. Z& z% S: y2 k! Fend9 y! q4 P# v7 O
) q* M8 z0 @ Vto do-plots# \. C* w. k! T# ~3 j% ^
set-current-plot "Trends-of-Local-reputation"
) {3 o+ Y1 T% \) [$ b6 }set-current-plot-pen "Honest service"
& B1 U( t% d, C6 W$ w; Jend: ^% c, Q1 R8 @! I
: S$ p* e- L( y1 n/ x5 U. ][ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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