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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
5 m0 X4 @( q, O/ a5 D+ Sglobals[
) D3 B' j# B, |$ [5 Ixmax
# U( C2 H2 m3 Aymax! D2 }7 U$ @4 D% H5 L' r# k
global-reputation-list
- M! j6 f d, Q: m Z) J9 ], n; T
# u3 _* V& B& Y% L T* q;;每一个turtle的全局声誉都存在此LIST中
& @9 k: Z" V6 x5 B8 dcredibility-list
( I+ E# B6 f @- x;;每一个turtle的评价可信度
' T; y2 N u& thonest-service
* S' e' C$ |; T3 gunhonest-service
% o9 T S; R) Y/ V! e$ \; a0 aoscillation
# L6 g6 x( {- r: w; K2 G6 krand-dynamic
+ ]8 S; E4 _: o" x7 Z]
3 y8 @ r$ d( m0 d
" q0 U3 ?, ?# p b! N Mturtles-own[% C- V4 b- l! L% [( }+ K
trade-record-all% Z* Z1 I; e! V6 i, i* c1 a! L7 [
;;a list of lists,由trade-record-one组成
; g3 T; e5 k. O0 Z+ ~2 Z1 Mtrade-record-one
1 S* q6 d& t/ }+ t;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 W2 R7 I' d4 |/ r7 V
/ `, V- O2 d" q5 {, t# a
;;[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]]& |) O8 o5 g$ M! o
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]
' O6 D7 ~; v0 }9 lcredibility-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; H- y1 G/ s( k$ ^: E: k! W" r
neighbor-total$ C& d5 r6 j, Q5 D! x8 n
;;记录该turtle的邻居节点的数目. W/ g5 V5 i0 L7 j$ {4 D
trade-time
/ t- v1 T$ ]" a4 n9 Z$ O. v;;当前发生交易的turtle的交易时间; u& i* L* s7 B: h
appraise-give+ c9 D0 d% c& j1 E. `# s
;;当前发生交易时给出的评价$ b; h9 h" d& m4 [9 W2 r) G
appraise-receive
$ C) @; [0 @( s8 p' P;;当前发生交易时收到的评价6 y( h8 w+ n5 |! Q$ L/ t: A
appraise-time
- X+ ]; Z& o8 t3 L' A;;当前发生交易时的评价时间
+ e; f i2 `- a; ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
; i* i# f7 ]1 ]6 o: S E1 K. D/ Ttrade-times-total
: E2 {1 p1 D: H$ T+ t;;与当前turtle的交易总次数
6 }: t$ h/ @+ X" d9 Ttrade-money-total
7 \6 E1 M, m8 ^3 U;;与当前turtle的交易总金额1 l2 K. C k+ L0 a! O7 f
local-reputation1 k: U/ c/ b5 `/ p
global-reputation% V) W% ]2 U. P% v1 s( W8 P
credibility
. V; W) L m4 e4 o e; b;;评价可信度,每次交易后都需要更新
0 L9 G) Z0 V8 `' Pcredibility-all
# _6 \( u& [8 c# Q/ E;;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; @* _; a+ U. ]
. @# ~ q4 o; U) H4 s, 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
' |/ f1 m7 q$ M% J( v% j% D5 l: lcredibility-one
" g8 j5 Z O& x;;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7 q* l) t( n; s7 [# j* |9 ^
global-proportion4 h, U& A. ?2 C+ L2 S) j
customer4 G% H1 k5 j" R- F: A2 b4 a0 \
customer-no& z# g* ~3 {) E7 E3 G2 }
trust-ok
/ y; E9 P0 u' l# K. X5 u1 ~1 btrade-record-one-len;;trade-record-one的长度
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% \( c8 L- `3 `6 M0 O0 Z' D0 h- x
8 w, |; `3 i8 W, l! I5 m;;setup procedure- b/ C7 o5 Y- ]0 h# d
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to setup: ~( Y6 M" w' X; ?
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initialize-settings3 }+ ^) O! H. N6 a3 K' @/ p8 A
, b* V' P7 l; O; Z0 X. v2 e' Fcrt people [setup-turtles] D6 a0 k; v7 D7 ?8 p
0 }" R# p0 ]' |0 ^
reset-timer0 z3 r3 \' D0 B, r E- l/ `+ n/ o
# R4 G; c9 }$ G' c/ `" {( x' T' l) {poll-class
1 j ^' ]1 A5 ]/ G- T$ p4 P
+ L8 `) Y8 b4 [: i; A+ \setup-plots/ @! i# G- e. w
& F" C! J/ E _! o# N Y
do-plots
! h- q; m0 g" N5 l1 iend
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to initialize-settings2 W0 W: t7 a w3 l# @
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set global-reputation-list []( ]1 p9 a0 d# X
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set credibility-list n-values people [0.5]
9 y4 F$ O5 ^' k l- {
6 `2 y0 ?0 V3 ?( oset honest-service 0
8 X) T; G' A7 o7 l
& W0 _9 a6 }/ B7 k1 x+ _set unhonest-service 0- n( I7 X. x7 w; c7 q0 c
+ r% \0 t% w- b Y8 G$ C% Uset oscillation 0
5 \5 S. z5 k: G$ ]& Y
# k' Q) k) P7 A- ?2 z- x# e( C; Lset rand-dynamic 0
( H$ c7 { f% N* E/ Y4 yend$ p$ ^, w+ _& r0 d" K5 Y# z
" [( ?4 s! W: C
to setup-turtles
3 x+ p3 c Q! {2 b- E/ Iset shape "person"/ ]6 k) o# [/ q3 ~% V( b
setxy random-xcor random-ycor: s( [5 B6 o! H) U
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
' |9 l& z# E. v& f- W; @set credibility-receive []
* l2 _1 H# h; K3 F7 |, X9 wset local-reputation 0.5
1 G( X& D9 K: J/ A! e- `3 j# Zset neighbor-total 01 K% x$ h4 @# J+ S- l
set trade-times-total 0
) m( o0 C" V! A8 u* Oset trade-money-total 0
+ o P; l3 S/ }1 V3 Z; g. [' e) rset customer nobody
) T; x1 D" x! R! Z: {) d& p0 dset credibility-all n-values people [creat-credibility]5 E8 c* }3 L0 j
set credibility n-values people [-1]
2 Y& I1 d v, ~, Y( w3 Bget-color# n0 R/ Z& x" x6 ~+ V6 |
; [% M& E$ V' A; e. U! U: G$ f
end
% f( \* A1 _, @; x P
1 G( P( H7 Q3 o7 t' i. dto-report creat-credibility2 G& I2 \3 K8 m# _- k' J5 |
report n-values people [0.5]- f/ o; V5 {% o0 ^
end2 T3 O2 Y$ w: s l# W, B' u) t
- w7 y* C7 Q5 |; W5 O0 Y1 Y: tto setup-plots
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set xmax 300 P6 x+ l" D G# \ ]% O0 a
+ M. Z+ ?+ q5 X* @$ j. \7 W( @set ymax 1.0
i+ a }$ P% l, I% s. h
8 {& E: k% o+ z8 }. {+ Q; g# ^clear-all-plots8 b0 i( F6 N- T$ y
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setup-plot19 n5 m$ M3 X; O3 U; A8 E4 S! a
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setup-plot2
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setup-plot3
& C8 z8 a1 O9 Bend
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. ]+ x- }. I1 n2 c;;run time procedures
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to go
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% o0 g& @7 @, o* J# n" Q/ Task turtles [do-business]) y, O6 _) P+ l
end1 Q. N: F2 h( v1 f" p& W g$ t7 d) B
4 f3 }' T) a7 I1 ^+ Nto do-business , I' H; J7 G+ n
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7 P! k. N/ J( K& s9 c
rt random 360
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+ v1 \4 q& W( A+ R; T& ~4 Y& t$ vfd 1& h! o! V! N# c: x$ `* ^% u
; v' R$ N" z8 s( Bifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here$ a( q0 o! \" [0 I3 \' X
5 _8 p$ x3 E: U' u) e( @;; set [customer] of customer myself) K a3 J% Q- b R- X
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set [trade-record-one] of self item (([who] of customer) - 1)# l# i& F: i$ ?+ a5 M R* }
[trade-record-all]of self; _2 H2 Q" b) A, E H2 ?0 Y' K" v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 j q# j1 E$ _; c: k. M8 m* ]+ f
v# _+ R2 Y: B4 b4 _' s) hset [trade-record-one] of customer item (([who] of self) - 1)& ~8 w% F2 E, O/ z
[trade-record-all]of customer/ j& _" d% k: d7 U" n
% D5 ^. S( F0 u6 Bset [trade-record-one-len] of self length [trade-record-one] of self
- Q9 }& a# t2 e( i6 V
* @7 \/ E( f2 b$ u8 Q" `# Aset trade-record-current( list (timer) (random money-upper-limit))2 D. D; j4 T& N" d
8 G" o1 G$ i1 E ^2 U2 v' g) ]ask self [do-trust]
, S$ m k# L- A9 g1 g4 U0 m! e;;先求i对j的信任度: V$ z* h {) c6 V, ]
: e7 Y6 Y/ r# Mif ([trust-ok] of self)
" {+ h* M: J. c3 Y;;根据i对j的信任度来决定是否与j进行交易[
! {: ^: `6 ~5 q0 a, Vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
+ N1 p( S7 i- J3 A9 R* V# T1 V9 k0 P/ i2 u3 V3 n/ r9 q" t
do-trade
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update-credibility-ijl
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update-credibility-list4 n2 `0 X$ _$ t3 n/ `6 b
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% {7 i0 w+ j7 q/ l, L" v4 D) T0 Qupdate-global-reputation-list" z" G7 {+ D. p2 G% }* `6 l
$ B2 s9 ^5 m3 m) k
poll-class5 u# U# s* w& W# x/ q7 {) C& N5 @
2 u0 O% V0 N ~: G& s/ Vget-color
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9 D3 l. y& V- @5 L2 D]]! ^4 I1 F! n3 @8 P: ?3 E7 j( a
) x: R7 [5 l& h+ @7 D;;如果所得的信任度满足条件,则进行交易' d8 D2 ?% R( t' l" h; P
3 U d# s f- U5 ~ _[0 |1 m0 U4 w: B1 j3 L& O
8 n+ f5 M {- ?$ s. Trt random 360
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* B+ [; i9 F- C- M+ `* d9 q3 e, Pfd 1
0 h% O Z9 y% T0 z* V" p3 [6 j
]6 e7 K6 l# E5 n1 k6 p8 q+ h9 r" D, R
6 X9 S9 W$ C& ~" iend4 o4 V+ l( B3 Y' p- `3 W
7 ^# t" N5 o; y$ Yto do-trust
* m! n9 X3 L% B0 k% |+ lset trust-ok False3 k9 U: j- `- g0 d
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& A3 a- b2 ^: ?let max-trade-times 02 n* E% b9 \# U% y' i1 j' v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 W, \$ J7 ]9 _" glet max-trade-money 0) q( j# e% m- i3 d1 V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 p5 c/ E6 h2 ^! W+ _let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% |( h; \9 [' J$ R: J/ p; w9 O2 X9 V5 n3 f0 Y) `9 Q( T
' c$ B, u3 w: j- x$ M/ l4 E9 Pget-global-proportion
( `& m K+ O% W5 klet trust-value# w) A( z8 e0 A4 X* P* ?
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)9 l1 Q2 U8 M2 d5 b
if(trust-value > trade-trust-value)
: A2 _+ q. H3 [* m) ]* [# R2 C[set trust-ok true]) U/ Z( Q- i) ~4 @$ h4 m+ B* c
end1 L+ C' W/ H6 S1 Q2 ~6 z1 G- ~# O% v
- e: N, W% A$ F! Y; V( d Uto get-global-proportion
$ Z' L! x& s7 n$ u; I# N! qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# p% Z. A$ l5 U! B H
[set global-proportion 0]
- W1 z, }) ?: e" s1 G0 o! ^[let i 0
# |) y' @5 Z3 h9 S% s3 B& g Dlet sum-money 0
6 N3 n1 Y+ \2 @# `# ]while[ i < people] c2 X- Z! B2 J0 s7 |; W, n
[
) C U+ ^$ P( w" M7 lif( length (item i, M0 W( O/ u; C+ V* ?6 x
[trade-record-all] of customer) > 3 ), U2 Y: i4 G- [- M6 `
[. i- N. t% b# q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! G, i$ b4 z0 m: c) T' A1 Z]! q/ p: z8 a/ c/ b1 f
]- R' L* B0 C8 f% z/ b2 Z
let j 0
H0 Y: A2 I% I# xlet note 0& @5 b0 f- J" W$ y2 p
while[ j < people], _, e/ _6 |* u& R E7 I6 Q0 T5 x
[
" ~1 R- ?8 M Y7 }# [( s) c9 lif( length (item i
, |) q4 j R4 D) y+ h1 b[trade-record-all] of customer) > 3 )5 t" X& L# h* w/ ?
[
" O/ O, E& t7 g" K) Rifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( T- Q3 I* J& I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) J4 X" C3 x. z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], v+ b2 O- C6 m9 |
]
3 k* m" b9 J. E4 Q]7 ] J5 s; n) W7 e8 y/ _
set global-proportion note; l" m) m$ j8 M4 U
]
& @7 @7 L7 N2 e2 w7 jend
" K9 [2 F. R# U! ]$ y* U: f; m: w: c2 A* @! ~- `4 P8 t( I$ e
to do-trade/ ]& t; n l+ Y# x& f
;;这个过程实际上是给双方作出评价的过程0 T1 d! k2 [8 k4 S1 M7 p$ w6 ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" s% G. b7 Y- o3 b5 A4 o0 K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ N; b2 m+ I8 o g( uset trade-record-current lput(timer) trade-record-current
3 o, y, x {: H9 a6 v, |+ K* c;;评价时间$ O8 ^6 X: [+ R- k" H, c1 L6 s1 ?
ask myself [' _: N) Y6 F1 d7 q" ~" s- |! |: X
update-local-reputation
% L$ Y% K* V; Z( F1 U6 W5 ?5 Xset trade-record-current lput([local-reputation] of myself) trade-record-current. z% ^: K* a; D0 n: _9 a! g
]
& F+ }4 \+ c# b4 Z3 R! h tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ y2 r! Q0 F q% ], [;;将此次交易的记录加入到trade-record-one中
( \. C( I* y; d! c, ~* M& ~1 Sset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 u8 v; d. W" i8 y* J" n
let note (item 2 trade-record-current )
$ g" I' q+ n$ X7 m2 s6 T" W2 Rset trade-record-current* E7 ]2 Y( O* M- f2 H8 c0 v
(replace-item 2 trade-record-current (item 3 trade-record-current))
( y3 h% _, ^7 Q, Kset trade-record-current
7 ~7 ^, r4 @6 }7 D) o3 q8 s(replace-item 3 trade-record-current note); ~! f a: n" W- Q. \& w7 u
* E) M& d& t1 m( }" D
+ `' b8 I9 t0 f1 uask customer [. n r) Q7 c6 X8 @% v8 G
update-local-reputation
$ @5 V- E/ K Q+ Bset trade-record-current' g7 l | d0 P! g- f
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # [1 r6 [2 l' x; x9 }
]& B3 q5 v5 b" t9 }1 z2 h# R& @
, O- {) K4 B- F3 w7 @# ]9 z% c7 P6 S& J' U: J j: y1 Y7 N
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 e) L! f8 |. _6 p# d6 n6 y) p
+ K; T( s2 O0 j5 xset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( }9 K+ Z; i' l; J9 L* I# N J2 I;;将此次交易的记录加入到customer的trade-record-all中
) u5 h+ {9 i% x3 Wend- E: j. j5 h) c
* z7 |3 |5 t$ [: fto update-local-reputation( ?, {9 X( b4 M( L
set [trade-record-one-len] of myself length [trade-record-one] of myself y, u, d- S! t p4 B
, h; I E9 e _& H2 U1 s
2 u, v ^% G0 O# _8 _
;;if [trade-record-one-len] of myself > 3
# B; d' m- U0 H% `update-neighbor-total
) ^ [4 o; _# C0 [. U' e5 b9 S1 g;;更新邻居节点的数目,在此进行: T! i" ?7 {" U. i( r a3 \% Y
let i 3( h1 X9 }' I- e
let sum-time 0
4 b6 f! r: p# C. G1 J( Zwhile[i < [trade-record-one-len] of myself]
& |! U/ q3 o- k7 R[
8 A9 [( l2 A( e' d2 P+ iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 m0 V m$ a3 f0 J5 sset i
* V( j3 w: [' \! C6 S: U3 R( i + 1)
* Q/ b( D' }' I" `- u]
; b# S* T8 S2 Glet j 3
+ f4 o" V" }( s, slet sum-money 07 j5 f. H Q; J$ f
while[j < [trade-record-one-len] of myself]
( a* P# D ?8 c5 I[
( T/ `' [% i' L x6 u. 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)
0 Q/ @* a, @( t: nset j
' B, q$ g- C: T( j + 1)
8 J+ L2 L! q" i1 X# c ]]/ n* ~5 F- k! Q7 \
let k 3
& f! p* U% v# ]5 p/ U- D2 N; J; Clet power 0* e1 O9 j3 B" R6 d/ O: i' l
let local 09 w. m# m4 \' X. S9 b' D, |7 ]
while [k <[trade-record-one-len] of myself]
d. n0 P# D( f4 b" m6 m! }[) R) L! ^% a* U x2 C: b( I, L
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) * b% D6 m& \' f4 ?( a' ]4 S' W
set k (k + 1)
' v* h; N& ^1 Z" t]
& R4 t8 b5 S) E" x5 qset [local-reputation] of myself (local)
E: M5 L2 T. U/ tend
% |1 |. _( L3 t
. }& M8 y3 W& L! pto update-neighbor-total* W0 j1 D2 j4 c4 ~& j" Y2 k) h
! V! j$ |6 W7 t, d7 \& V* L l
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 A8 s' ?8 @" D0 T
; A2 { \- y1 O) H0 f+ e R4 M- P
d' k! d1 K, I* w! B% l' j h jend2 b9 i9 ~+ L9 f7 ^! k9 ~
# I0 R0 ?2 o- X$ }7 Oto update-credibility-ijl
; {& T: V1 P: P" Q" g! _* k
+ b" i* ?# n, h5 E# U;;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。8 D ^! u3 d7 Y( _# k8 i
let l 0
! o3 S9 E7 }2 w+ w1 qwhile[ l < people ]6 l- }# S! s/ U0 u/ U2 f; S
;;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 b2 G) V2 {4 k" @: Z3 ~4 ^9 |
[# e% {: n, ]2 w
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 e4 D' A9 t% m* A3 w( E8 V
if (trade-record-one-j-l-len > 3)
+ L( R' l3 ]0 v T1 x' F[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& H* A; @- n1 H
let i 3
! ?; c, U; S5 Hlet sum-time 0
! C; W" k8 t$ i8 y( }6 Z3 @" G+ {& @while[i < trade-record-one-len]
7 f5 s3 q. |, r; d% ?6 r[8 L. r7 d8 ^* B% t, @
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): B8 B' q: |; R+ ?
set i! @7 U5 w$ @: p2 x+ y _& e0 k
( i + 1)" [1 R+ c v' ^
]; O' w# V1 h5 _% M/ a' ^
let credibility-i-j-l 0$ n& a7 h2 I; C( s$ D
;;i评价(j对jl的评价)
I& M z( |( T) u: U4 }; i/ Mlet j 3
) u0 g! B0 y2 c- m8 qlet k 4* I# U: ]5 }- O& ]( q$ S% y& Z& F
while[j < trade-record-one-len]
/ f% d/ F' K! P$ a[" `/ u# F, {% j* G& t% V& O
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/ d4 K& r) Y9 z( b6 T' V: ^ 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)3 |/ Q* s/ D- d. C+ i6 H5 J
set j
5 u) M" I* ?2 H; D" F% `( j + 1)
; \% @. @0 @, `' L+ m, z1 y]
9 X6 E: x0 o- R4 n% @6 T( R: Q, _4 Eset [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 ))
1 k" e: ]2 X/ w- m. \2 M4 `3 m H) d3 {( B4 I
- l) N- n6 k8 ^9 [( u
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) o: v* N3 Y' r( k* l
;;及时更新i对l的评价质量的评价
4 s2 ~* z2 @ ^7 e+ N. Fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! U1 d& ~8 P6 A! T o
set l (l + 1)3 U6 {: D1 l3 |% ~& F" [
]" i/ H2 T0 D1 E. n: i2 W3 z8 R) c2 e
end
. s$ i0 {. m) e# ^1 d0 {
$ x: \1 N( k" |# Bto update-credibility-list% W( a7 `& ]4 v G2 W
let i 0
9 E4 C( f3 l" C G0 F* s, Owhile[i < people]5 U) h0 o7 N( _9 S. q6 {/ Y" J+ S
[# ~7 I5 Y4 V8 K" @4 o/ z1 Z
let j 0
# }8 z) p/ A& K8 ylet note 04 | b1 m/ n/ u
let k 0
4 n% [% K" K1 V- y& q;;计作出过评价的邻居节点的数目
) ^+ c& m( ]" x& E! y6 Bwhile[j < people]9 b4 r* L( D1 Q& j, P5 t
[- K# F6 B+ q' F( ^
if (item j( [credibility] of turtle (i + 1)) != -1); B! l6 I6 q Z
;;判断是否给本turtle的评价质量做出过评价的节点- ~: g x J/ y; N: Y2 l, `
[set note (note + item j ([credibility]of turtle (i + 1)))
* y8 `: S7 O' ~% e! H, T;;*(exp (-(people - 2)))/(people - 2))]0 k+ i/ ?# T6 w) l& s
set k (k + 1)
/ F$ o* b$ S0 J3 y9 Q]
2 g) F/ w- T7 y) {set j (j + 1)
, y" Y* S9 K' `+ J3 Q4 Q, z]
: {0 I; Z4 O) ~/ q o( wset note (note *(exp (- (1 / k)))/ k)
8 U) S3 K+ I, i7 x3 @* Gset credibility-list (replace-item i credibility-list note)
6 C) b# n1 ?! }: a) ?set i (i + 1)
( d. o1 K2 q& V& O: H/ q* C]4 O% a& n. R: j4 A
end
2 ^( A% y* l+ G" ~ o/ M Z$ B. K4 p. { E" ?
to update-global-reputation-list
3 u, R* p$ c* ~$ y6 J2 D9 glet j 0
; m# G B% S: V" kwhile[j < people]( R* n) P+ ^) x+ y2 j+ M! k
[6 |" n! \7 W, C- A+ X2 c$ b
let new 0
/ W, G# o- ]+ E* ~;;暂存新的一个全局声誉
, j; \: e- ?4 N: ^let i 0
5 N4 K: ?1 W& b8 [let sum-money 0% ~3 Q- ~/ [& j8 d7 Z
let credibility-money 0" A! P. n; [; T3 Q5 ?4 x
while [i < people]
V! ]7 M( _( y, t/ r, I[& j, P, Y9 T) i" F- M
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: o/ p. I" P/ b2 J5 l0 Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* v5 E, Y. w: Uset i (i + 1)9 g, ^4 J$ b! J; ^
]& }: |& r1 Y- o5 y% X; r
let k 0
( e) \$ [0 O) k2 clet new1 0
. g* `: k m/ ]! x4 z* k1 Nwhile [k < people]
9 S& a# ?$ r: _( U& r8 n[4 E* n; f+ q" j R+ q _# V
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)( F! E+ f3 C& U
set k (k + 1)8 i3 e% |: a4 B5 C$ f; e, `
]; x& n4 t: ?, N4 U6 t+ H% k
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 J* d/ `2 Z; p1 I3 \, D/ Wset global-reputation-list (replace-item j global-reputation-list new)
8 v; J E; z) ?! B( [2 U1 n4 rset j (j + 1)
# K7 ?% v7 c1 R, ]' A]( D0 Y& L! P: [4 V3 x# n
end1 K* K+ |- f8 |, R8 r5 J
: u) [) i2 O+ k5 L0 m/ d
5 n! r5 Z' j6 P5 |' o: ^
; j5 \9 }+ |4 d; B% `- `
to get-color# }/ P0 { m! T' @6 Q6 T
% U; r7 k, U% Z* g, Vset color blue5 V- t. _8 h" K; C
end
2 _2 I7 D. X0 G- |- U2 Z5 f6 ~
4 I3 G s, T! U8 U' s k% a" W dto poll-class
/ w- E$ Q4 O7 t& B2 r7 _% vend; X8 p1 K; }! K2 I
; L' T. j. z; t; R J
to setup-plot1
k! [3 v. I6 C% T( c. l+ q, d, O1 b3 }0 H9 r
set-current-plot "Trends-of-Local-reputation"
* T6 L0 o/ J) F0 [
" o, o* H- A" y I( dset-plot-x-range 0 xmax) v8 Z& n* L9 R2 g& J3 X$ N' W
; h5 O* Z5 C9 I9 f# ?+ f$ Zset-plot-y-range 0.0 ymax
. N1 A1 T V. M/ K% ^5 oend
6 P0 a1 A% s/ D% j& u" ?3 |) f0 A$ ~) ^' O0 f5 q$ p. `
to setup-plot2
+ ]6 T6 s# f9 B2 L8 h1 s7 C
# ^$ z f: c/ y) ~. Jset-current-plot "Trends-of-global-reputation"' \9 G) y" }0 G2 C& U/ ^, A9 V c
, | C6 j* D" Z+ \3 _
set-plot-x-range 0 xmax( M2 l5 |9 T# M" A7 w5 h& w' F
8 [/ E3 _3 W! ~+ E' h9 cset-plot-y-range 0.0 ymax+ d; ^. X/ j- }. p. U0 M
end
* q6 L$ `3 i5 ^$ z% c' D+ T( |2 B1 C5 [" X" x
to setup-plot3 k6 a1 F: I& h- M; N# Q
' s! `9 q. d- m; _1 x" n1 I) gset-current-plot "Trends-of-credibility"
% p/ y2 n# v# _) J3 I2 x* i6 I8 z
5 I. A# g9 ~' gset-plot-x-range 0 xmax
1 ]' A0 e4 q3 Y! g
# F" @* x3 J0 K) K% Fset-plot-y-range 0.0 ymax! q9 D1 r$ G: J( ~
end
/ J' R u. Q/ m |% {6 S# z" Z+ O. E+ g2 S
to do-plots
5 X6 c" v1 }: T4 W9 hset-current-plot "Trends-of-Local-reputation"
K& W3 P1 ~0 ]- X# I, \set-current-plot-pen "Honest service"1 Z/ Q: P4 F* f' Z2 N; r% E
end
% T* g6 z. |/ X$ r, m0 @7 u; v) _( R! v% P' T* N$ m/ [) c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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