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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3 N, ?! u& o5 c' J( v" _
globals[* F" X7 _4 i/ ?% ?
xmax/ ?8 R }2 [% M: x5 J
ymax
) j9 B% C( ^ S; U3 V# _# Oglobal-reputation-list
( J. Z! b) h2 t0 i4 Y' t) M8 U% \% K% F5 q0 {! Q: m+ M9 x4 m
;;每一个turtle的全局声誉都存在此LIST中
- N; F8 ?+ h5 O Q( x* x) Icredibility-list: o. g# L, {: J" j% Y1 R8 ?- z
;;每一个turtle的评价可信度
8 U+ U( a8 ~# H% E& z. {8 O6 _- lhonest-service5 w# o; o* d5 C& F! j1 x# G0 u& b
unhonest-service
j" g4 A6 q' U) \6 ]oscillation) ^4 T. ^/ B8 h3 K3 ?2 y2 d7 B
rand-dynamic7 I; _8 C2 n/ f& F
]! ]* |- B, m0 Q) @8 Z0 `! o
) ]1 \' f4 S& `
turtles-own[2 H1 @1 ]- g5 Y) P I+ ~; e
trade-record-all+ R, h9 @' N- B& X
;;a list of lists,由trade-record-one组成) n G! B4 Q8 r; p
trade-record-one
" Y, n: }6 _0 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4 m/ {2 l$ @2 Q$ y
; V. r% N) 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]]) w- _- e1 A/ T) c' S2 p2 X! k
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]
* s, L* t- f# } c+ ]$ ccredibility-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% A! }0 c: h; ?$ y1 ^6 t
neighbor-total
& D/ y [# I$ X2 P- |% T;;记录该turtle的邻居节点的数目 u- y+ c6 N, O6 U- ?
trade-time B# z; N ^; R4 ]
;;当前发生交易的turtle的交易时间. Z& w A6 B- f- w
appraise-give
/ B1 M$ `9 X' g4 \- q) @; ^;;当前发生交易时给出的评价
- o, }7 w. I4 k- t! n% N2 J, Vappraise-receive
4 P# D/ R( ]/ B7 E1 y+ j' u;;当前发生交易时收到的评价
+ b0 o9 K& o$ p6 ?) @8 W2 \- Nappraise-time
+ i1 H1 L/ r4 ]& E2 p;;当前发生交易时的评价时间
$ M9 j& l7 C: M0 A& G8 j7 jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉6 w% O6 v2 Y" h- n' o3 R) }, w
trade-times-total
6 U& p, F) h9 b& s- C5 i;;与当前turtle的交易总次数* }1 |* h' y) b( n2 k
trade-money-total
4 O [: B2 |7 D1 Y& s;;与当前turtle的交易总金额
1 {0 H% S4 i. X/ n) f- Dlocal-reputation t0 x+ K* z% f: D
global-reputation O6 k' B( T* L& \0 L5 Z
credibility
& p( a8 L( V2 V" U;;评价可信度,每次交易后都需要更新/ y1 V; P- Q b) }
credibility-all K7 w; Q8 x2 d, Y/ [
;;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
1 w3 [' s- w5 {8 q& y8 W
+ ^& u% t. a5 w5 |- d0 J2 P;;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
8 P% `+ T8 x# ncredibility-one( ~4 F+ T3 [/ y% ?+ \
;;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; U; |7 f% a; n
global-proportion* `" l# |8 ~; c( u; x( {
customer
+ o# ~' c' f4 {3 K5 a, X- b* K3 Wcustomer-no
, M9 H2 t$ U# o: ]9 ptrust-ok
6 T+ y( O- R" M: o/ F9 P1 L, }trade-record-one-len;;trade-record-one的长度
9 @" q3 L. J8 }0 w- { N+ ~] J3 _. @6 u6 \2 b1 z. s+ R/ |
1 A: ^: b) f" h y;;setup procedure9 w% D# K7 E5 D4 q
8 h) g. r* P: D$ B+ o1 s
to setup" k9 U# h! @1 I9 S. K1 L
. t, C1 r0 w- }' u5 j m3 ]ca
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initialize-settings& D% {1 A$ l3 D( I! x' A& k
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crt people [setup-turtles]/ d+ ?8 X# R: F
4 x9 J4 q: Y& L" r/ A: |reset-timer
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poll-class; |" o; D* W: R3 J" B
2 }# ~/ w1 S! X- x+ \setup-plots& I5 i+ m H/ i
) w' d9 w5 I9 _% b* y* [do-plots' d% M7 N v2 T7 o, I' U
end
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9 C% c1 u8 S5 B( G) J& Rto initialize-settings9 a& U7 q+ Z. a- e1 `
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set global-reputation-list []
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9 s8 s; k; o1 A% x# v) ] l& v3 xset credibility-list n-values people [0.5]" Q/ f$ Q! ~& ~7 s! \) y k* j0 q4 n
4 g5 u6 [) B D# \
set honest-service 0% M* V V3 }9 y8 y! ?: |
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set unhonest-service 0
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* n, t1 v: f! E* ~ S3 `set oscillation 0
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set rand-dynamic 0
% G4 e3 }1 {( h' J' Jend
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to setup-turtles ! a" |9 A& B- w' _( z
set shape "person"
+ l0 N7 t$ u: J9 p$ qsetxy random-xcor random-ycor# b* b; S( i* I
set trade-record-one []% ?# j' F* @1 `
& u% }5 d0 Q# G9 i3 R/ t" Z
set trade-record-all n-values people [(list (? + 1) 0 0)] . M$ H& E8 I1 f- d
' b( L7 u# Z$ t* \. c3 xset trade-record-current []3 l( l9 V# ^) `8 a8 U
set credibility-receive []
+ D3 x7 K+ E/ vset local-reputation 0.5, w1 @- ^' S: b& h$ k7 U
set neighbor-total 0$ C/ R6 b1 f- y% _, `- Q
set trade-times-total 0) x; E, }' ]1 O
set trade-money-total 0# E" Y2 ~$ H9 d3 ~; d/ b2 w
set customer nobody
0 e- {7 b1 u% t$ c9 Q. d* Uset credibility-all n-values people [creat-credibility]
" ^& }% }% D) n- P: W. {set credibility n-values people [-1]
: V, [7 p$ d" Z4 ]3 V, uget-color
8 y: j5 t: K: f& K. W- r
2 e' p/ n& Y" X1 G: n7 \) a4 Pend
8 t& Z3 R. r5 @
" z7 R& V* }1 ~* w n3 ito-report creat-credibility
) v7 _ \ r% e7 a% xreport n-values people [0.5]
0 B, ]+ h; l- g1 g( oend1 J) q2 x* g& l6 b1 \. R
9 x& f {2 O8 }& s0 H& S4 H# Z
to setup-plots
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set xmax 303 F$ Y" o' j0 `+ p7 V) K
& G x% H) `- F6 ~
set ymax 1.0
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clear-all-plots
U' {; x+ z0 o0 X; X/ Q! F
- q( m7 V. ?2 }5 @6 Wsetup-plot1
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setup-plot2
3 }% r$ f/ \" N5 j! p, Y6 z# r+ G' g( n# Y' T( k& L
setup-plot3. ]( Y9 _0 E+ z2 f( N3 D8 `, ?
end
" c3 ]; v$ q9 U# h) G1 V* z
' V1 i; C: }8 Y, O i6 B: L;;run time procedures
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to go6 }" r. M( E U( {& \9 B; L
" W3 e' C) W& Y% s. h! W8 m% j5 Bask turtles [do-business]* c, ]1 S' n* A' E. ] T3 W- m! E& v
end8 C9 J4 {* Z6 ]! t# C
6 b* k( a4 k( z! C. B$ \/ W6 O/ Wto do-business 3 |; {: c6 w9 P/ s$ T8 V/ E: H
% ], k8 w [4 [; X a
3 _4 w4 N( m5 T" [
rt random 360
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1 d0 a6 `$ A2 |5 ~/ n& Y- [9 Dfd 1+ F: o0 L* J! l4 L* o w
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ifelse(other turtles-here != nobody)[
9 p( E5 H! k" _$ ]
: v2 p; p0 s$ t. s3 W5 T/ z% Oset customer one-of other turtles-here
. G. S6 F8 y% [9 L' g2 s
- I L: f" j7 ~% `7 T9 ?5 P9 ~2 m;; set [customer] of customer myself. @) i' W' J/ u$ a' T
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set [trade-record-one] of self item (([who] of customer) - 1)
8 q2 n6 A& }. X[trade-record-all]of self
% R* K( q! A8 g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ |/ C$ n0 `3 B2 {, @2 V2 k! a
! H( a) f; y) Fset [trade-record-one] of customer item (([who] of self) - 1)
2 j: N( p/ v& f- G8 z. l1 u2 \[trade-record-all]of customer
( W8 i. a8 g& t# R
: S/ Q7 ]0 s! e. Z' Jset [trade-record-one-len] of self length [trade-record-one] of self
2 @* F' Z8 J; d. d e- q# b% ~
/ F- v/ o5 y' F5 N( n* qset trade-record-current( list (timer) (random money-upper-limit))& [8 o' z2 w$ _& i1 G4 {/ \
2 [4 [* n. m, v8 `9 h: H, d
ask self [do-trust]
+ H& k. o' Y, ~0 q;;先求i对j的信任度
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9 Y/ ]6 R+ |+ M5 ~9 I2 jif ([trust-ok] of self)! G2 M5 v, T0 K4 o: d+ u2 a
;;根据i对j的信任度来决定是否与j进行交易[, ^9 a0 E; u8 K$ M: ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 Z. |. H# N2 l- R- V. t* F) h% g9 g1 F" h- J
[1 B& R% F0 ^% i3 Y. j8 G; Z
! ^ _% v2 v1 K2 R5 C
do-trade
# a1 H* F. u7 E/ s' z( C
5 E6 t7 T+ W" A0 H. supdate-credibility-ijl
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update-credibility-list
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2 W7 [: G T3 U; d& j2 X3 p1 r
update-global-reputation-list C1 d7 Q9 I) {' t
. j! I7 H3 G6 S' Z$ Spoll-class
* B2 \0 w" G2 q2 l. N8 \
I5 L& o9 g& Aget-color
6 r' q2 [% N7 t& r% J
9 k# r# B& M5 U) e. H]]' _& v- q# z T# r
w1 [) Z" ` m! e;;如果所得的信任度满足条件,则进行交易 Q8 F2 W6 l7 q0 D: J! B3 m
: K' T& a' D8 k+ k/ s; C[
3 o: N% z# t0 T
! y" U# K1 }. n: a% N7 P& y4 z* hrt random 360, K/ k5 N7 r) l! u! D2 S ~3 o
" P |3 D: R2 hfd 1
; J1 i* V% ^% u8 r4 Z/ u; O. V' ~% A+ E8 L/ b2 U ~
]
' z2 R9 N/ x& X
2 M% p# t% W5 ]" Z Yend
6 I8 O [1 h% r/ A
/ x5 f) K6 ?0 q7 L) h0 V U: q Cto do-trust 2 B# E/ c; z' h0 q9 k
set trust-ok False- s+ e8 `! Y4 B) p( p) G
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let max-trade-times 04 Y1 { R4 L6 @9 \
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- z4 ]* x' i! L/ _& t4 u4 ~
let max-trade-money 0
6 a1 @0 H0 @; w/ o- Gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ N( ]# p0 ^3 c4 }5 Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% q7 ~* n, f3 s* v, L! {% d b: E/ q6 A2 ]1 e' d0 X3 ~
/ k8 B: O) K+ L0 S& G$ Nget-global-proportion
7 Y( ]# o% [ T" `- p1 \, Tlet trust-value D6 C, a- Y1 n4 ]1 [$ J" h
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)
( m6 O- U1 s5 G2 u: Dif(trust-value > trade-trust-value)
& u+ p* i, h. E; }% y6 X4 [[set trust-ok true]
9 _# e8 H* [: Z; u2 a+ a+ H2 vend5 b0 [0 l: l# t v$ I$ c7 {
) m3 `8 y$ ~, H; o& u3 Mto get-global-proportion
: S7 n. p1 w, n% A4 H' Uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ K7 g. v" }* R! ^$ s" k[set global-proportion 0]7 P% b5 m7 g( m6 @
[let i 02 U7 [: U: J0 X' X) ^8 D
let sum-money 02 j/ T1 q8 D$ t
while[ i < people]" B! K# u3 B! V) j i) U7 e [
[# j4 _" T# A# o- G
if( length (item i
+ _2 G5 j: j1 V C) R[trade-record-all] of customer) > 3 )+ r6 U" b* \( D w9 S. c' B; m( q
[. l' B7 M* a5 ?6 R( g
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 b( V" P7 q4 ^; w; Y
]7 |. f% J! N' u$ T, L1 k4 D ]. F
]
+ V% e% S' q$ c7 [let j 05 ~1 G$ W: e( D1 i4 e
let note 0* S. u8 s' L8 y" E8 w
while[ j < people]
3 A0 A' V5 k) p[( J5 }. `. y+ @
if( length (item i6 |8 E! T" _6 y( f! p
[trade-record-all] of customer) > 3 )
8 l" S) e( K0 Z& H* x[
6 F: G D2 A/ p/ T9 wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
: A0 E/ Q* C h/ X( M+ G: j[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 z6 r+ U9 ]0 x6 ?+ d; w8 K Z" N: F4 Y9 G
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 E7 ^) [ _ T]) D, y1 t5 O' P, e( x/ m" k& c7 _: N
]7 q; _/ a# \1 W6 i. a
set global-proportion note
5 L! U( Z% @; t& k+ G]
9 c) D+ }- M3 f5 N$ N+ ^; w* O& Iend \/ ^* }7 p; _- o2 ]) ^4 b+ i
8 F% ~* O; R! j7 O& {7 |! |( g+ zto do-trade- z5 c) I% O& Y" c& m m$ `; M
;;这个过程实际上是给双方作出评价的过程
2 ?; w8 O- q( f( ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& L2 ~+ j( t5 X2 n6 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& f4 q/ _0 a+ o: l6 @
set trade-record-current lput(timer) trade-record-current+ J. L2 A4 R3 b! ^. v
;;评价时间
' i1 C+ u( B6 p5 d# Cask myself [5 o! [. [+ d7 V
update-local-reputation0 o& c$ ~8 Q' ]
set trade-record-current lput([local-reputation] of myself) trade-record-current
, e }9 u( S) q]
$ f+ ]& h7 m* V8 Z3 a. ~* o' }set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 M' @6 C( r: Q;;将此次交易的记录加入到trade-record-one中
! K: A0 D) j2 g* U1 v: p0 ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ Z' C+ m$ a( m3 P8 L/ }+ G' C% B$ S/ L
let note (item 2 trade-record-current )
& T0 y! |) Z5 n2 F/ X) j$ Jset trade-record-current
/ |& [) Z% v2 a(replace-item 2 trade-record-current (item 3 trade-record-current))4 b$ B9 `+ n) Q; _
set trade-record-current
$ u/ J; N5 _6 G3 t8 X4 t(replace-item 3 trade-record-current note)
2 x( b& }/ T% X `& c( w, m+ @2 Z/ C# h |8 N
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ask customer [1 F; e9 L. ]9 o2 H+ ^3 y0 E
update-local-reputation& E# W3 p/ l+ l& ?/ i5 l) S
set trade-record-current; O# y% C8 C7 \/ Q3 n5 w- _' }6 W6 j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 H+ P7 d8 s: K: E
]
! j5 Q8 M% b; a" L: X/ Z: f
5 @% m/ M1 Q) J* j
% |& L4 x" v& b/ F i, m; Tset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( Y! g! t7 J$ V3 P( x, J: E5 Y/ A9 a; |- f* h( a
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 `& H4 G# X. m/ @" {. R1 d;;将此次交易的记录加入到customer的trade-record-all中
! t( Z/ p3 E- }; Aend4 x [. `( Q9 {* H# Z
: y! m# u1 \6 A% V( e7 M$ {
to update-local-reputation& o6 f2 `3 G2 ~8 s0 a1 d
set [trade-record-one-len] of myself length [trade-record-one] of myself
" } n- C. S6 N" s7 ^" d
3 R1 p: M Y+ V( y' f+ V; l- w. u# N6 \, D* r9 }
;;if [trade-record-one-len] of myself > 3
" d& G& D6 D8 u8 cupdate-neighbor-total
# `8 |' g8 e' {8 H, ^;;更新邻居节点的数目,在此进行
6 A3 `) z1 v, ^( C5 e! Elet i 3
( c' U* F6 B1 Clet sum-time 0 `1 |# D4 K2 k: i! R* ~
while[i < [trade-record-one-len] of myself]
* |" A( J" k) s- P+ g& A( Y[8 j; [! J' x% O; K( c: m5 z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% k/ Q6 p& a( }. y! W, ~
set i0 L/ R/ `# K- N$ |5 w6 \3 M
( i + 1)
: l" N; ]% i% y6 ^+ n' V]
4 i/ N: V. Q1 u% f9 h* E: A( Rlet j 3
) P0 m4 z2 {, C/ |1 ulet sum-money 0
, E% G( p" j* E; mwhile[j < [trade-record-one-len] of myself]
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4 R/ J( }& ~$ ]% N1 e- T/ r' ]$ G+ d( nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)/ A0 a" S" y7 C
set j
% Z( w' I4 \' C9 q% F+ g3 D/ A3 z( j + 1)$ K. h& \" I" l% N) [
]: n; G" g7 Y+ V- x5 ^
let k 36 k' ~. p2 \& n$ D5 @( v i# ?( w
let power 0
, B; J# A ]! n2 G6 P# O2 r' o) l5 Clet local 0
1 q1 M1 o; ]1 Swhile [k <[trade-record-one-len] of myself] w- e- {4 e _9 r. D9 g
[
- G$ c7 f0 ~+ p0 m# rset 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) * I8 |/ d- L- A( l
set k (k + 1)
2 {9 D! p' r* b. {]: V& h7 F; S1 C! x
set [local-reputation] of myself (local)1 [" P7 V* j7 f6 f
end
9 T; G) _5 U1 B \+ }$ W/ D! F. E
& z& P, b* V$ z9 k2 @to update-neighbor-total- R* {1 P9 J! {( |# Y( T! B
/ U2 P6 C- F% |1 o& vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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( G! K+ `, Q, m
) F5 a! Q; P0 A& m/ Z0 iend
6 e; ?: o3 X/ ^$ ^4 i4 ^
' K0 ?+ V* u m2 x+ \. ?to update-credibility-ijl 8 b9 F7 P1 N. l0 ^
5 q: {, n7 Z7 x
;;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。) x0 b1 u( k3 y+ w. X2 b
let l 0
$ i! c K) g& `while[ l < people ]
. t2 T4 s: a. J" m9 |;;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
+ i S" q( B, o2 \8 r; W' P[
- @7 @3 K& P q6 f8 ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; y5 P5 k. b& b, t7 jif (trade-record-one-j-l-len > 3)5 X! [$ f, y& W1 W+ P6 v5 V. M$ 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
, m( G8 v" z/ u( p- [7 X- C( glet i 3
. R4 L( T; r' ?; ?9 x9 }9 w' T% Alet sum-time 0
# q; |; i2 V, }0 ]5 X# n, t# B3 m8 fwhile[i < trade-record-one-len]
1 y& g, q& r+ ~0 H! o) k8 Z[
# G! k7 {8 S" c2 U3 \( bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): U' E: p% }. a8 m9 ?1 D4 h/ c
set i
6 n+ ~8 O' [: L- ?( h% W+ ~( i + 1)
2 G; y' `7 n: N: l8 I3 `' P4 z]( ^. R/ z& H A2 x( o& @
let credibility-i-j-l 0+ m4 k1 V2 k1 ~# `( o
;;i评价(j对jl的评价)
5 P, ]0 ]" }7 r1 M' W& t; j& Mlet j 35 `! i# d& D5 q. {$ o# w
let k 4& a' t0 D6 q3 c: s d' a3 Q) ?5 W
while[j < trade-record-one-len]
- W4 @' r( G( w1 M! g% c, Q) r[, L) ]7 e9 i' K$ L. n- j
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7 k( v' N2 ?& K9 _/ w
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)
; O& c$ a9 D. ^) Z9 k- ~set j
, P: `& p' f# j6 i$ J! \- r3 f, U! v( j + 1)/ ]3 q2 _1 L) b+ q- `0 J( j
]
' d* N, {& C- {- b) q3 R, Y( yset [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 ))4 W; N; M2 D7 x
# A, P2 }" J: ?& X+ V( A
6 T; t& a$ g* q6 xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 W W* ^( q( V4 K/ B5 e;;及时更新i对l的评价质量的评价) g) q) B3 @! s* h/ g
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 b6 k1 ~8 l; W/ E$ I, Wset l (l + 1)
; t. a; Q1 k0 X( A]
) F4 o5 P Z5 e" x) T, W7 b( zend
1 x* T# A; ]) L \- ^( _1 ^' |
4 Z6 c% I+ l% D5 ]to update-credibility-list0 Q- }9 d9 r: f1 C8 h) }8 f* [
let i 0
% O9 } o/ P. P0 E; x0 Qwhile[i < people]
9 @7 d3 G& I5 v[# [0 c; X+ s* {! d7 j) b
let j 0$ \- Q, y: T; L8 ]$ b
let note 0; H7 e* \5 A/ S: J& J
let k 04 A% \; R- C* M. O' P8 U: C1 |# g
;;计作出过评价的邻居节点的数目
$ }4 K8 e% G. N! G) k6 bwhile[j < people]
* ~# f4 U+ h+ F/ C! J2 R0 w[
- a5 g$ ~1 y. g0 F! Dif (item j( [credibility] of turtle (i + 1)) != -1)3 X- D: n5 c" u- S5 o- t1 F
;;判断是否给本turtle的评价质量做出过评价的节点
3 h4 F) B& _" Q[set note (note + item j ([credibility]of turtle (i + 1)))
+ k) d6 c: o9 T, k8 f( R;;*(exp (-(people - 2)))/(people - 2))]; s( t4 q1 b9 r3 [' e
set k (k + 1)5 y4 P. }% ^ u4 `
]0 K- ?1 i3 k/ j# f1 g: s
set j (j + 1)
+ {% ~0 W* Q7 v7 Q# W]
% _1 e6 E) s) R, K% W6 q5 |set note (note *(exp (- (1 / k)))/ k)' i! u) _4 U7 L0 j2 D" f
set credibility-list (replace-item i credibility-list note)/ r& j' q( E3 N/ j
set i (i + 1)
7 r: |% h2 [6 o( y]
+ q% ^3 \' N& k! lend
0 i3 O; v) U, B- r4 [- C& A( ?6 K: i4 T' J6 b
to update-global-reputation-list
" L0 R2 R* B! i8 Q' l7 Tlet j 0. h# t$ `( G b0 `6 h
while[j < people]7 ]4 w2 e- D1 X2 F% Z
[
7 J- ~) ~& D6 u/ b1 Z" H( }6 d$ Flet new 0
4 u8 A# s$ c( s! I& F/ K7 @5 H. x: w8 O& F* U;;暂存新的一个全局声誉3 r7 s4 V1 V, _: I' v* X+ v* t
let i 0
& \% u x; T- ]# S! _' k: Slet sum-money 0 L0 Y5 h- a: C* `# S
let credibility-money 0
& X9 ?1 Q' [- K, R1 U; rwhile [i < people]
% Q/ t7 l/ x0 E. G) p* |[
$ U" V% l S( t7 |8 E1 I _set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ y+ d# |3 m: N& K% }8 a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' ^" ?% s* b5 @) R1 U- `! sset i (i + 1)+ ^9 f M3 |9 @, E6 K% X1 A
]
! |; J2 m8 q" s' c0 K \9 hlet k 0
6 R5 P3 B) o) N R6 flet new1 0( t! l5 T( A7 b( U' h
while [k < people]7 L. P5 E0 L3 w! G$ J# m3 ~
[. e7 c1 N" U J& Q. 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)7 Y. l3 a; X: G0 |8 S1 e4 p
set k (k + 1)8 O x/ Q- ]8 [* f/ H
]
3 b8 Y/ m3 Y" q" @0 x! kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % ^% T9 v t% c9 J
set global-reputation-list (replace-item j global-reputation-list new)& e# m. R$ U/ K8 j- S/ j
set j (j + 1)
9 ?9 t* C5 Z# X! k( X; B; ?) T1 d]
p. X, C4 g/ h G4 Hend5 @& M7 b8 H# d4 R X
! B$ N( y3 {5 B* ]
$ o& J& ]4 f4 y3 R9 H& [0 C
& S( ^ w* l2 H9 M1 M& J% `
to get-color* ~! B3 C* L- ?, o. K
a" _# N3 k# [: l. G3 F
set color blue7 k) f: q. @" R% \" e+ P
end
" o% [5 _/ v: ]1 i* K/ J" ^- L$ I" Y2 Z: R; f) p
to poll-class8 ]! A9 w6 \! w5 f
end
. ^7 O' G' _0 r* r9 _! q7 c0 T) ^) `( n5 |/ C# g
to setup-plot1
G/ t+ J! o0 s8 }/ Q% j& Y) ?) \6 z) C# b& E3 z
set-current-plot "Trends-of-Local-reputation"7 Y8 s: A, \' H7 X
# G _$ ~7 B5 ^
set-plot-x-range 0 xmax
! ? y) C0 r* C$ @/ F1 A, Y$ n+ C& S$ ]# r# e9 d& H' O
set-plot-y-range 0.0 ymax5 Z+ M% |5 Q* x4 E
end) o( Y- O! J" d: P- S- A5 ^+ W% y
* `8 I$ f0 R2 |' A2 z# Hto setup-plot2
, i9 u# p' U& m* P% u7 c! m$ O
/ `' `0 @7 b- T) \$ D2 f% Xset-current-plot "Trends-of-global-reputation"5 i; y9 }1 k, a( b
( _0 p) _) |$ S$ U4 F3 Q* w' A5 k7 iset-plot-x-range 0 xmax8 b- C! i$ }9 _8 d, M, q$ F
% s5 `! j* x7 C4 i* X6 q' |( d
set-plot-y-range 0.0 ymax! u6 g, Q6 `( O9 Z7 L) | }. E9 C2 x
end
# e- F# N7 `3 p# }9 ^. ^1 U4 l4 u2 B
to setup-plot3/ H/ n. V8 b( h( c" E
" `/ z# R: o& t8 f- H1 ], Hset-current-plot "Trends-of-credibility"
8 A; E: {6 f* c* X" F& ^8 {/ b5 A' Q) Z
set-plot-x-range 0 xmax
5 x y: p w; w
8 W# z' r7 }# y( f( z% `* Dset-plot-y-range 0.0 ymax
9 F1 \" ^4 m3 f9 O& Oend
* p, s) g7 P9 F1 ?- ~; N; p ?: r
. d% D+ \6 q1 {' L) [" ~to do-plots
. |5 k/ v2 k/ M1 C% D, q4 ^, p* a0 F4 W- ~set-current-plot "Trends-of-Local-reputation"
' B% F2 ^% |4 r% Xset-current-plot-pen "Honest service"
0 c& Q9 L G6 L% x5 Q4 lend
4 c3 B1 Q7 a3 s# `) I, _$ Q2 F# n! J8 I6 ^/ q3 z
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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