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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' O! }# ^ J" Z( p4 }+ P
globals[
7 M7 _2 w; m5 M( lxmax
# o) G. Z4 t T: J7 i- Aymax- o& v0 |/ k; v. Q
global-reputation-list
2 q8 q+ P/ u: g" A" V& f) v6 U; w/ ], R( q
;;每一个turtle的全局声誉都存在此LIST中
: D7 l2 B6 p. K c! E9 S" h- Q8 wcredibility-list+ D$ y, C4 W0 y# n
;;每一个turtle的评价可信度
, a( u+ u. X& R, fhonest-service
6 Z3 }. p S5 x5 {0 @2 M9 Kunhonest-service1 h% J: N5 H) E: p
oscillation
) ?2 {0 O7 _: @5 X; Q* }rand-dynamic! l2 f2 r3 Y. x9 O
]7 N; Q+ b9 i( r% A' e
; a$ s7 Y' w6 h0 i) a$ f6 S; _; w
turtles-own[
+ o% S6 S& q. U7 `. r5 ~; etrade-record-all
7 M9 E: c" Z7 x7 \- Y6 k;;a list of lists,由trade-record-one组成
6 w; e& F6 m3 ~: Ntrade-record-one
1 b6 _4 B: N, M6 S5 _' z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* F1 E0 p! a$ ]+ x
; @2 L$ G. ]7 M" T
;;[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]]- n: l9 J P' g% @/ r4 X2 T$ u! S
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]
- M9 p' Y6 `3 e; ycredibility-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
- h6 k2 \ h6 k* _$ dneighbor-total! ~ }( e1 E4 Q5 F
;;记录该turtle的邻居节点的数目
4 {- b6 }( w6 a7 O" J' Ntrade-time& R4 |$ C# m9 f# G# Z5 D
;;当前发生交易的turtle的交易时间
: w9 S( ~6 C( V" @) I6 Yappraise-give
% d4 \: ^ f* O;;当前发生交易时给出的评价
; P# g) ^" h! ~3 M; J& V) I. _6 h" cappraise-receive
7 S0 b* L/ h, _2 Q;;当前发生交易时收到的评价
/ f3 P" w2 Y( a7 o. {( \appraise-time
- ?& |+ f% u6 M5 L6 r/ Y$ U;;当前发生交易时的评价时间" D, {5 i5 _5 k# n
local-reputation-now;;此次交易后相对于对方turtle的局部声誉; L3 P) }/ E1 s0 w+ [+ J' S u; c
trade-times-total
. T n- Z' x/ T1 e+ s) i;;与当前turtle的交易总次数
+ K k- a/ p% vtrade-money-total; b d/ c2 c# D
;;与当前turtle的交易总金额5 l, P+ C% T$ P" i0 b* a
local-reputation
1 a3 Y% P! p) n5 m' Jglobal-reputation
, o8 o- B% m6 ^, tcredibility( l! F4 v% ?7 G; X: h7 p/ W
;;评价可信度,每次交易后都需要更新
$ v; V$ D' i' B# R5 @2 t2 Rcredibility-all; M8 }8 u" S9 T0 e# K" j) v
;;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
# F* ?. ~8 _+ O0 n1 P+ o+ h4 j3 y. E$ M$ s2 N3 V; H/ _
;;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0.59 d/ a# f3 ?( I. i7 S% R6 a; E
credibility-one
# S9 m0 `5 V0 _4 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+ {* l, E% _( G' B* ~$ W5 Z
global-proportion
( c' V+ Y& g$ E; s ~customer$ {! {6 `% ?, u
customer-no0 F9 [* v) G( e P/ R; G
trust-ok
6 Z- \7 N3 ?, f! g* Rtrade-record-one-len;;trade-record-one的长度
9 |0 F. L, }2 R]: @6 e* S/ L2 ~1 o- ^
9 K: ?$ Z" j6 V* C6 G, H;;setup procedure
, L2 c+ N, _" p9 y9 h( I& V* }6 S7 R3 J5 v5 D: r0 z
to setup
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ca1 x4 b% _9 Y4 M/ u( V7 c% [( Y' i
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initialize-settings
) d% F U$ r' i6 ^; E$ x$ I z5 s$ i& @. p c( A5 d" J
crt people [setup-turtles]
0 G! _+ T. p: O7 D( x
2 p$ j% a' t' h$ _7 }. [# W7 ureset-timer6 Z$ @' l! w! [& V- y% B& ^
6 x& c6 \, Z+ K3 j4 J4 x' u9 G c [poll-class* o( R- F$ s4 G6 Z1 C% R
$ ]' h$ V$ @5 E, ^. O
setup-plots R$ y( a _5 {6 D8 P9 c5 C0 `
5 s, I8 m1 {8 ?
do-plots+ T4 ?+ d- X# X1 t3 ?" A, i( a
end
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to initialize-settings
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: D0 O8 H& Z0 e4 s7 o6 Iset global-reputation-list []& C1 t/ f r, u0 H4 c ^
1 q, h$ d; [* q9 ~+ g
set credibility-list n-values people [0.5]8 L6 |% N/ [7 D# z4 E7 R+ L
7 i+ a, p' g6 e1 v1 P: p! a" D# @
set honest-service 0
' N3 \' e. U- {% z2 V. j* i6 @& M$ J7 R4 c: G; j
set unhonest-service 0
0 `6 B" G, p. [# F& H" B! }$ q6 O5 c' v
set oscillation 03 J5 X3 X+ G& ~* F
8 v% J u9 j) @) d( `5 p
set rand-dynamic 0+ V7 A$ V. o* L- y( p2 {/ L
end/ b r3 E8 ^7 Q
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to setup-turtles ) ?& V* f: R1 S
set shape "person"
5 b' \1 m" U/ H/ [& C5 c3 s/ Qsetxy random-xcor random-ycor0 P- @% R! \+ O! C B
set trade-record-one []
7 I( K& M8 c! }) F3 N# }- O' ?2 x" y( u9 ?
set trade-record-all n-values people [(list (? + 1) 0 0)]
0 l( E, X: B' I: Q, P: P6 Q" v7 [2 n. q& P0 G
set trade-record-current []0 B# w h; d7 d+ s% G0 m
set credibility-receive []
" s2 r1 B" D" x, P) G1 Mset local-reputation 0.5' ?" }) J! U. R, v
set neighbor-total 0
) w/ [: |0 Q2 j7 A; {, C- u! @set trade-times-total 0
) }1 t% {) u7 s1 G! Q6 b3 ^ Gset trade-money-total 0
: f5 t8 v! H4 @set customer nobody
1 \9 r3 G/ y; k# J7 h0 _set credibility-all n-values people [creat-credibility]
8 |1 l& `! r) [6 w: ^set credibility n-values people [-1]
* n9 R; ]6 Q2 x0 [+ M* bget-color
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: g& k: ]( D" C/ J. f% [( M2 xend
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to-report creat-credibility
: L8 N8 w2 h: q" }: e, r8 \report n-values people [0.5]
! d2 C! z0 F. l2 C: a# ]end
$ j: Y. a( u9 j. [4 U- x1 J! S/ w8 z; g* R8 q$ e
to setup-plots$ L( R8 w' ~8 Y8 V2 \
2 i! M6 U: [0 J. `3 U c
set xmax 30
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+ i) R/ L/ i5 J; fset ymax 1.0
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* ]" o# K6 X! N, a/ b/ O7 Rclear-all-plots$ i' ]! ?+ Z' X8 T4 s3 C* w. I
) y5 R- A* Q1 q/ `& D! `% x
setup-plot1
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5 u* }4 a; e) ^setup-plot2* r, c Z/ z. n! l) s1 }
4 ~, @! \' ~1 a! I) P5 xsetup-plot3# T& [' d5 R7 k/ P9 J) e
end
9 |9 J7 d+ U7 m; W
& v y% s, w' Y/ ?8 Q0 t9 Q;;run time procedures# C% R, O" U/ r6 }: I$ ^$ J+ `
% |( o; \$ M& l! E1 c7 X3 cto go" e+ m- b$ l0 t8 h
8 G, M! x: p2 _1 Hask turtles [do-business]
& ~& ?+ |: I# t8 |% y; Z$ nend# j4 R# |& B1 I- m* i. R
9 K, u8 q6 c( w n+ s4 ?
to do-business
% u8 b: U. E7 ^& `1 M0 m h1 G* c* ^2 B8 Z2 T- T) H1 I
; N! _2 n1 @ ^( a" g, {5 zrt random 360
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# T4 {! F j C/ Tfd 1. ]% q3 S+ O. q" G5 H# T
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ifelse(other turtles-here != nobody)[
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; P( ` y4 b! d! D7 v xset customer one-of other turtles-here6 }2 ] j% F: \& S& B
; U+ r9 l# j. [' S+ m;; set [customer] of customer myself( x+ f% V+ L; H* }# N9 I. L, }4 z- M
& `: y8 E/ a1 V, k' t. }
set [trade-record-one] of self item (([who] of customer) - 1)
* K2 r$ _7 [! N, s) \4 a; H$ y9 r) U[trade-record-all]of self
- |& ?* V( l. ^, d1 Q4 O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 I2 ?7 m0 F, a2 ?0 @
/ z0 T3 }: o6 u* tset [trade-record-one] of customer item (([who] of self) - 1)1 u- r/ o9 {5 M$ O; j9 i7 Y" e2 ^
[trade-record-all]of customer
% n6 ^' m' }7 L
I1 M6 g7 n/ Oset [trade-record-one-len] of self length [trade-record-one] of self+ J, M' l4 ] q, `& q5 u
% Z; v. s q1 `; L0 N: {
set trade-record-current( list (timer) (random money-upper-limit))& [& ]* a) P0 a4 Q
9 T- K3 Z* J0 h/ |1 `ask self [do-trust]
. Y9 Y) T+ P* m( {;;先求i对j的信任度! [; Q# l. A+ d/ r
& h; r6 [9 u# X; i: N" P- nif ([trust-ok] of self)- @+ f( X. l9 Y* x
;;根据i对j的信任度来决定是否与j进行交易[
- G# j8 H; G# d; E, C4 vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" n: m4 b! h9 x* L& o
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[( H( }5 @+ t# _4 I% L9 t7 s
3 N- T# }; M5 ^2 zdo-trade
0 E$ d; X1 ?! X: ?% z( a+ b( S7 D. U
update-credibility-ijl& b. }. P/ {9 N5 f6 N
. Q0 B0 U% m5 ?$ J. j4 Z$ w( Kupdate-credibility-list
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+ z: @$ V; k! w
+ }' x% e) x+ @7 k' ?) lupdate-global-reputation-list
% w0 }1 T2 u/ F; ~5 {0 a& u5 @$ ^5 ~' Z
poll-class
" e: }. A$ ?6 L; e- v+ a
) \/ j$ X0 B; Z! f2 nget-color
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% l: L9 ]8 D0 m1 X+ n6 K$ F% C]]
, E+ F) K7 m7 ^+ E; |9 Z% X/ _" m- x: |! R4 X) \* N }4 v
;;如果所得的信任度满足条件,则进行交易
/ m }1 \# n& z; Y! Z- B5 e% I6 d6 u/ T0 o' m
[6 z# G( Q" V) v0 H
: h; z5 A9 W$ _8 \rt random 360
- U, D* _' |7 n3 G8 a9 a4 u1 H& Z
$ G) D& t/ v; T& \fd 1
+ l- n% @4 [" k9 o U% c3 s Q% l5 _6 p A/ A* w
]2 s+ B3 H+ \. H, ^$ |# m
3 f5 o7 w* r" d/ d B0 A
end
" u* y' A& P3 C5 i
8 ?' A. S0 z: D, m* fto do-trust $ m; w( _: D, {. Q. K4 r! k
set trust-ok False
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let max-trade-times 0/ _9 R9 {* b" N. a& z% }
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ ~: e6 g* U8 M9 j: Q
let max-trade-money 0
3 u, d& P% B+ T; P' Pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] O( e$ R7 e8 u2 Z# B7 K
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& V/ p9 _% h! u& d; S8 p/ y$ o* | A Y, n" D/ x! }/ s
: I% a5 k9 h% x7 _+ cget-global-proportion& `# e* ]+ t/ ^: V
let trust-value
( j ~/ y' M* l9 V$ u7 q: W5 Qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
2 K3 A& X i- ?0 y9 Mif(trust-value > trade-trust-value); s# z; q2 [+ ?. F% B. G' V
[set trust-ok true]% W3 R+ ` E0 O4 A& N6 P6 p
end' r+ z5 v- U' b0 a `; b
. l( v# B% S6 R
to get-global-proportion$ G$ l* n u5 ?: A- Z! V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)1 |. }1 r. ^! O- n
[set global-proportion 0]8 Q, G% l0 L. V2 V, w
[let i 0
. e, A+ c: D# v* N( Tlet sum-money 0
! T6 Z/ | R; i) L" q1 fwhile[ i < people]+ S( c# X: N L' ?. l. V
[; p* U* K* j4 l9 |
if( length (item i
0 e$ j5 i+ H' ?7 |[trade-record-all] of customer) > 3 )0 k H. i' W |4 E0 F" v+ M
[9 T: o' V: e! \
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* r; C3 u5 E* f! ^]: V' E P' a2 b6 F& F0 t
]) y% _( l# D) Q' N
let j 0
) i8 _. q3 k. clet note 0
0 Z; ]6 C/ J3 x3 G" n2 V/ awhile[ j < people]
0 d) }* |# F* b4 f8 O H$ U2 O[! s2 ]' u! A" ~+ C, u% \
if( length (item i" Q! N( V Y( s( k
[trade-record-all] of customer) > 3 )
. U( D' T2 A# N p- G$ J# p[
) C+ c- g; k+ `" n; r; s7 ~+ iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& w" F' l7 `! h( S8 H. g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) u0 D" [. {; g8 x. f* E8 A F
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: p4 Z0 m3 T* a- O8 R0 }0 v
]
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set global-proportion note
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end/ b' F S/ U( W" V. t, f' y2 U
6 |- q; }9 |3 m: P* N8 w3 a5 u! hto do-trade, W$ F/ F4 o- w7 v1 R
;;这个过程实际上是给双方作出评价的过程( W; n" Y/ A' K/ `2 y, O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, k& o* m# c5 X" F! W1 t* J* Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- l% Y1 ^) t- A9 z$ H( Y- ]set trade-record-current lput(timer) trade-record-current
8 K8 e4 H* I. a6 z;;评价时间
# e3 f% N1 e: A* A* Task myself [
+ d5 h' T4 `( f6 p4 r6 v" aupdate-local-reputation
7 J5 J s8 ], t! q( Dset trade-record-current lput([local-reputation] of myself) trade-record-current
: x0 P& \6 _5 ]% r4 u]
5 [( S0 a: R0 a# i, fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 Z) G3 J+ w& ~6 [# Q, \( M;;将此次交易的记录加入到trade-record-one中
1 P' Q. ]1 R/ P" ?# P& \set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* _% y" B6 Z1 E' S5 t3 k* glet note (item 2 trade-record-current )+ L$ W8 a9 m# X2 G3 n# L/ I2 c
set trade-record-current
) o$ k/ {! a# |0 m(replace-item 2 trade-record-current (item 3 trade-record-current))
: u% S7 H: x; z" \3 B! h1 fset trade-record-current; S E/ u7 }8 o
(replace-item 3 trade-record-current note)0 u. _; K% t9 P6 n% p
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3 Q& ]+ d" q2 Y: P" X( h6 m
ask customer [
6 j% c8 V& d) q7 Gupdate-local-reputation; T! U) n% N& n c7 c0 v' C6 Q- J
set trade-record-current
7 X! r9 ?) C9 Y1 N(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
R$ o) ~1 d( J' A1 Q* k]' M" q8 D4 D' F h/ t
" s5 u" k; L. G+ q" U
8 w' \8 P' N) B% i* Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
; A `1 t7 B, U F2 B2 K$ w2 U; o( X4 c0 ]. r q6 R* l
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' E3 o8 e' C' O4 e;;将此次交易的记录加入到customer的trade-record-all中
( g3 X9 G# @9 @end
/ B r- h, M' T! Z( e( {" [: k$ H$ D$ u6 ?; f
to update-local-reputation* ?+ Z4 [) w/ h! ]3 v$ `, ~
set [trade-record-one-len] of myself length [trade-record-one] of myself9 q. U5 K* M* L% }+ q
" U' y! W* ^1 I) e
5 o: c! A6 J, q$ s) D d$ c/ g, F
;;if [trade-record-one-len] of myself > 3
3 A: q3 e$ D# S, ^0 D; |update-neighbor-total
# Q }5 u" A9 w3 e+ Q- F! q& W;;更新邻居节点的数目,在此进行. V9 Y4 j9 Z* S7 a7 g ~; @' U
let i 3$ C% p* c& s- z) y! \
let sum-time 0
7 p4 `8 d' |6 y" awhile[i < [trade-record-one-len] of myself]
5 x% ^0 S2 R5 T! E, p[
' {! X6 \" X6 k2 ^' Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; F0 _4 l5 e$ p. Oset i
; W! `* D! b) X: e1 S( i + 1)
6 O4 ^1 m- `! E, k+ W* r% M]
$ M4 G% K3 s. a* P1 L" `let j 3
1 r' ], O- u) O% Mlet sum-money 0+ L+ X8 X# S$ W0 J' v/ Z3 ^* J$ ?
while[j < [trade-record-one-len] of myself]
5 z" ]' c+ ?! }% R$ C8 D) j. Q[
7 M* i5 K- j- w, [2 pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)" X) c. g+ |; A4 x# C- t8 L- i
set j
$ v( w" R( y- e4 j2 ~" |) \3 I" k* ~( j + 1)
, z8 a+ [$ C/ A, f% u]
1 k' r& ^' X( S \+ z( _8 ilet k 3- f3 m6 U1 `$ n5 k i
let power 0
% {4 k* Z7 G5 T2 C6 ulet local 0: l7 Y- b. x( S/ c5 c
while [k <[trade-record-one-len] of myself]- V: X( O: F4 x5 U, x% v
[
! ~# R0 i2 k! m, 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) " m, H* F. j$ Q& O9 v x
set k (k + 1)
; y. `6 E7 [# a' {# S]0 B3 A$ c# H! Y8 q3 c' e5 D
set [local-reputation] of myself (local)
3 M$ H' C$ z! E6 Y! |! Gend
# T6 @ H$ z8 u
' f* y% [/ l% v# kto update-neighbor-total7 Y4 }$ B9 |, _: B7 K
% Q h' h3 n. L3 @8 z" Q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], I% n3 |. a( B2 [. q3 K9 u& q- t
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end
( b3 ^) s5 a8 w- a
/ R0 }+ T6 O4 e6 k, Nto update-credibility-ijl 0 f( u& p& T9 e9 W" ?. L
/ o: i4 P ~" s. V8 [/ w/ r
;;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。
. Z+ u, \" t4 q- h- E' S0 }let l 0: T0 x$ T% J: S3 i6 b6 E
while[ l < people ]
$ Z5 l1 N; \# {/ x- R;;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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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* L- D' ~8 h' O; e: `5 } n
if (trade-record-one-j-l-len > 3)6 V* }' L% @8 q6 |7 b
[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! O, [) T+ C: Y9 c
let i 3
3 \$ B4 m, k+ Y+ r* N( W' a% Hlet sum-time 0
9 \( ?2 t8 f5 S$ U& Owhile[i < trade-record-one-len]8 ]% X) V3 V5 ?3 p
[
5 N1 x" v w5 {$ o2 xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' c# b% t& ^( V9 ^6 J: _
set i
6 q( |9 r; \4 }( i + 1)* I5 D9 P9 F9 o2 B; C/ [
]
" |" F5 y9 v+ L. F6 rlet credibility-i-j-l 0
) c" `1 R) D* G: W1 X' ]+ I+ H;;i评价(j对jl的评价)6 }4 j# e( P5 x
let j 3) X' ?" d$ u1 O6 N
let k 4
9 ]& J) N, j# W9 S1 G6 g8 ]( Zwhile[j < trade-record-one-len]
" W8 m/ H$ [) X: y8 B" S[
+ M5 y# ~/ ?. cwhile [((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# t9 P) n7 D' @
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)9 `) m) k0 z/ U5 D
set j+ i/ p% Z5 Z5 Q7 m- F4 ~
( j + 1)" J" c0 }# z8 K
]
8 s+ c; e; x2 H, _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 ))
1 D1 o/ u( H6 K- W% S% ~) T
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# F% H. l( p+ D- t' D4 w
;;及时更新i对l的评价质量的评价
0 ~* n% O1 U6 A% p* D+ @8 M5 a1 Yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 r. I! T6 M6 hset l (l + 1)0 {0 z8 Y5 f" p# I7 `
]! v7 ]( E' t( j+ y* w; p
end$ V; g" A& a- [% n+ q# ]
* `0 I+ V7 M/ }5 u. x' ?* Kto update-credibility-list
' E+ F& E) |0 M, M3 jlet i 0; `" u, O& @ |
while[i < people]4 R) W# E" o+ ]' x# l7 I* l
[8 w" J1 M' W7 m* x% g- i+ M
let j 0
. ?' f9 ?! g. @1 Klet note 09 n: o: r I2 v: M# [" G& Q- _. Q
let k 0, r% G5 H6 } @$ D1 `8 u& l+ d1 b
;;计作出过评价的邻居节点的数目" t0 D& C, M n+ d& m4 C5 T7 |
while[j < people]
2 H y& ]1 B6 ?[; T$ r! r! [7 m/ {
if (item j( [credibility] of turtle (i + 1)) != -1)4 A9 }1 u' z8 ^0 E! O
;;判断是否给本turtle的评价质量做出过评价的节点; w N3 z, Y e L6 t8 S! M
[set note (note + item j ([credibility]of turtle (i + 1))) h& ~5 T# \; x: @
;;*(exp (-(people - 2)))/(people - 2))]
; u8 v$ V1 Q7 Z. `set k (k + 1)
9 [& }# Y: q; h1 S! `4 N]
7 t2 x; f$ x# g P% lset j (j + 1)) c7 D2 N/ v; Q0 r
]
Y9 E' X+ c' S" t; Zset note (note *(exp (- (1 / k)))/ k)' r0 Z- k' H* t8 l
set credibility-list (replace-item i credibility-list note)
5 }5 n. ], ~1 j! w9 K, Bset i (i + 1)! O0 T' J3 U1 U% d& C9 I
]& \- x$ \ S/ o, S1 V7 U' g
end/ r, F- F/ D L! `& M B) `
$ R/ U! p2 s/ `3 K+ `. sto update-global-reputation-list
2 {8 z) B( E& `1 _& n+ J. S9 Ilet j 08 F9 f+ o2 d) k( r
while[j < people]
# O5 m* ?) g0 h/ q. [[
9 W) D; s& L( c+ H' L1 tlet new 0
' S4 N+ H8 r5 A& x3 X$ w. Z7 l;;暂存新的一个全局声誉
- N* B+ c" F+ `2 A! ?( I1 i$ Ilet i 0- n0 N2 ^ A7 U5 h* r$ Y
let sum-money 0
" h+ L; ]9 ^8 U. s+ l1 rlet credibility-money 0& b+ \0 U. N4 l3 K
while [i < people]6 \; F/ R0 b' g. n) Y; }5 o
[
1 x, v; p# b/ _) S. ~set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% \( s4 J, k4 p: L. iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( z [; K8 M$ p# l8 O. fset i (i + 1)
: L& {+ l, J2 g]2 \1 K$ A: T8 E6 R
let k 0
! v1 N' ^+ y" T" u# z9 O. s( z) p1 blet new1 0
+ g; n9 y$ T. U. T( b& A* Pwhile [k < people]- V8 m% f& C2 H9 B
[
/ w$ u3 ^: M9 Rset 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)
- ^ H) Q) c" M0 A- s G2 _set k (k + 1)
8 |1 }, `3 M# ?]& D# b: M, A# Z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 j$ t0 H4 [- v0 uset global-reputation-list (replace-item j global-reputation-list new)3 {9 k+ Q( ~4 R m5 X2 W
set j (j + 1)/ W" i% N) `$ W" ?) h+ Z
]0 M |5 p+ N9 Y
end, G( R& W( s u& @* P- f
3 ]- V8 h3 `0 j( ?+ E- s
" @! Y$ s) L2 V6 _7 Q" |
) T5 Z3 {+ F2 q% ~to get-color2 ?: H' P' W4 D. d9 Y
- B1 T# \, z* ?6 F: f/ J
set color blue" a* ?( {- Q/ P. c( ?
end: k- o8 G& Z7 V+ [ x# M/ V1 K; K
g1 T& _" |2 o, U2 \! sto poll-class, J0 F; l6 K: k" P9 D& b
end
5 Q. Q' |9 U0 [6 z* @) N
, [ x% E% \" Q- ^# eto setup-plot1 J' l' T: I; R* V" k: ~; }
; h7 H# h% e8 T7 u# g5 b" l
set-current-plot "Trends-of-Local-reputation"
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% `6 h. a9 i; ^3 fset-plot-x-range 0 xmax% v3 _ S' ?% N- J8 y
& @5 T4 {+ `. Fset-plot-y-range 0.0 ymax
) |0 s% Q' p- p( E2 l+ Nend) u. I: p# @# _6 [5 W- ^
1 S* W2 g+ v, U0 r6 ]% d
to setup-plot20 O k$ G' V/ ~% k3 Q$ s1 t
% y4 H$ R4 U! Q; P5 w) J! Aset-current-plot "Trends-of-global-reputation"% _7 B" n6 N, j D
. Z( f T9 i: T' b8 Q. h# t+ l$ h
set-plot-x-range 0 xmax/ q7 D# L% l: _9 L9 }/ I \
! h: A# q, D) k( T* lset-plot-y-range 0.0 ymax- F' ?3 Y- m, `5 g+ M1 `& s
end
( B8 F% c$ Q. {. x
3 n+ L# [6 ?0 T i; }9 i) d! dto setup-plot3
0 e8 n) {, e- L" b* J" s) ?, z1 |- Z3 y; r7 U3 s- [! X
set-current-plot "Trends-of-credibility"
' B) o2 e7 |, E7 @9 O0 ?1 Z; t) f% D. w7 B% V5 X
set-plot-x-range 0 xmax
( e( n, S' S! w, A6 d
. [+ V6 \7 B" E+ U5 fset-plot-y-range 0.0 ymax# |8 U* a, e* E4 y+ N
end y5 i/ ]2 l5 {3 A& M1 o
1 e, ]( H ]2 [! ~( @, ^
to do-plots
: x/ y4 ?& g7 H# Mset-current-plot "Trends-of-Local-reputation"
- c- d$ g: M- {, Dset-current-plot-pen "Honest service"/ k/ Y% A# E9 g3 I
end5 b7 \ }1 ?7 L7 Q
+ o, `1 O" O+ P& J4 u. Z& h" n$ V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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