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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
6 l+ Y: j! P% K7 kglobals[& Q9 G) l8 q5 L ` n
xmax
1 C0 v+ M+ z# V# }ymax& w$ S, [1 H q7 N3 V5 h
global-reputation-list
% p* y) c7 }' d: c/ m4 h: Y
& Z) P9 a3 g) M;;每一个turtle的全局声誉都存在此LIST中* I; [8 ^ h; \8 t8 `8 R' e
credibility-list3 V* C* p! ]& o% W, c' t
;;每一个turtle的评价可信度3 l) _/ x/ j! e% B; o
honest-service
9 E5 Y0 z6 m" Z' _unhonest-service6 h: u! I% p+ f* S5 W
oscillation" ]& `* E- p; c- S" V# W
rand-dynamic; ^# u2 p# E6 ` C+ y' a
]
: |! @( e/ W/ k w! E: x* D5 G+ x9 A# D- o1 C& |' X
turtles-own[
9 X2 P% B _5 U& V. b0 e. ftrade-record-all
- C2 Q3 e; I2 X9 g;;a list of lists,由trade-record-one组成/ L, z/ b* d) W& U' n \
trade-record-one
. w( a' \9 S, k. S# ?' r# g* P+ G;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% \* i4 M' `6 p: z
$ T$ e, J2 E4 {* I( q;;[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]]
- P, U7 Z6 y0 U$ Mtrade-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]; \, y. r# r5 F1 ]- ]2 F* S7 H
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# a- Y* |7 K) ? w Z5 }5 v2 a. p
neighbor-total
* Y, Q9 X [2 i x0 v3 t* i. E;;记录该turtle的邻居节点的数目
% f: c6 q8 V6 G) u' z- N4 etrade-time
6 i; e( t( I$ N7 p1 g% C$ E" g6 v;;当前发生交易的turtle的交易时间# E2 S( G9 ?5 f$ z& @4 M6 s* l2 y5 T
appraise-give; T0 ?" B: R, \+ Q5 O q3 R7 Q# z
;;当前发生交易时给出的评价# f1 T9 F: @( _$ a5 J
appraise-receive" y& t T) N, I8 {" k
;;当前发生交易时收到的评价
- }( F" H) ], z& Jappraise-time
8 U% k9 O* n( Q' x1 n;;当前发生交易时的评价时间
& j% N# n2 w3 V1 llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 u. @' W: _+ Ztrade-times-total
) u* f7 q0 H& X( t;;与当前turtle的交易总次数 ~$ b" }8 J- E7 S7 |$ P
trade-money-total
: u! N6 K2 B3 J7 ]! |/ _;;与当前turtle的交易总金额
1 K. f0 y( M, T4 ~5 o9 _9 Rlocal-reputation
- |; x ?3 {9 S2 E! v Oglobal-reputation6 Q0 K2 k' O, V& e; C6 M
credibility B0 A8 N0 I. \1 F
;;评价可信度,每次交易后都需要更新, x$ Q G% R% {& v, s, V
credibility-all4 O: l# Z4 t7 n& s# |' Y) L
;;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4 Q3 y5 x3 u: p L4 W. h: D
! G- P7 s" h3 s! j8 b;;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( V d* m" ~& f; Q' y/ U3 h
credibility-one
: Y& v. F7 a0 \! x3 d;;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
; o5 z' f) U( c, |7 O2 E1 Zglobal-proportion
1 U2 F* d: N q; P z2 dcustomer
, F. O/ o0 b8 }/ I( M0 M/ n- Q+ pcustomer-no
, I9 G2 B% D, F2 V6 M6 D$ V* Strust-ok; p( {" o5 u+ |8 ~' |1 c8 |% o1 O
trade-record-one-len;;trade-record-one的长度
* J7 s; Q7 Y/ z7 o; ^ ^]
7 C: K D7 |& N- C/ J- A& k( n5 O. k$ r# @! q# C
;;setup procedure9 f: G- u& h: y6 h4 h
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to setup
: v# ]' i1 c- E Z6 W. M+ x$ t: I" R( G3 g
ca# z3 o, X. D5 u2 H/ ?# m
- V: \$ E% t! H: D& \( e/ O4 \. Minitialize-settings
' q$ l% h; S* B G* t4 G" X8 r+ M' h% j5 K8 |7 e
crt people [setup-turtles]
1 _/ ]" F7 O. [
; K# F$ p5 g& V freset-timer* f' X, U5 m% v0 `5 L
& f5 x& t4 Q/ n! s* j( M, k4 w. f
poll-class4 s0 x! X }* {2 }
6 g( X3 T' j C# E, e- @* @) Y4 n
setup-plots7 Y1 I) D5 | Y' M D
. o( ]0 ` T0 W+ }) F4 U2 `8 c
do-plots4 l! a" [* I! t: R6 [2 T
end; `: ?. R$ }5 Q+ m, ?: O/ R
6 g; Q$ b& g/ U
to initialize-settings
1 ] b9 R1 z0 W% u! _; c
! L9 j9 f& W- w4 G3 Nset global-reputation-list []0 O3 s* S e9 b0 I
. F. R/ F, T% w% ^' q F+ pset credibility-list n-values people [0.5]3 A8 d! D& A# m4 o
0 k5 U: t+ M* Q2 B" R b' G: H3 tset honest-service 0! N' S' \2 d. p
" U8 j% z; O: w0 \) } A2 T! n
set unhonest-service 0
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set oscillation 02 F6 i8 o5 N& d2 r8 D. M) _8 }' D
8 I V# C8 [' u. eset rand-dynamic 0
: G# A; \4 ^, ?- t @- L/ d. qend% v5 A/ o# j2 z% K8 ~
; u* Q) {; ]* S3 r2 A
to setup-turtles
2 r C! k2 x/ `* f1 K6 lset shape "person"$ E% [( j+ f$ s4 e6 A
setxy random-xcor random-ycor
: K/ l! E4 d0 ^' h* Fset trade-record-one [], ~7 i) G/ K' l& T6 N- ?7 E
1 w$ L2 T0 U9 Z+ O# Y: _9 j$ @set trade-record-all n-values people [(list (? + 1) 0 0)]
& F# Z0 y C1 e% [% _- L) U% m6 N; h7 z9 ?
set trade-record-current []+ J6 Y6 w4 E9 {
set credibility-receive []
3 Z: n9 v* G. wset local-reputation 0.5
$ u9 |9 q* h7 u$ ]set neighbor-total 0
5 t, {) X7 q1 H" z& a5 `3 yset trade-times-total 07 r7 ?7 S7 |3 W j& }
set trade-money-total 0# M6 c* m6 S# V8 K5 o9 X) s
set customer nobody
/ E& f3 c7 c/ ^4 eset credibility-all n-values people [creat-credibility]
! I3 G& s/ o( A9 ^% N4 `set credibility n-values people [-1]! w+ A1 o# ~0 t( @) T) d- W
get-color6 J4 U7 W7 O2 ^ y& s! C' U
3 q8 A1 U& ?- N3 `end
5 T2 J, j# h# E6 K7 J8 e0 r! d9 j: S1 T6 b" m5 c
to-report creat-credibility
u7 o) _: ~; d8 S/ K3 e$ hreport n-values people [0.5] j$ k$ v* t, X
end
3 y: K1 v5 W5 }6 j; U
9 _7 C1 l! U+ j3 s( f0 Kto setup-plots- u8 D! K& l9 b5 _
6 V- j P l3 [' C4 \/ c
set xmax 304 ~& v( i% Z+ r
( G# x+ g/ \7 w# _4 Q
set ymax 1.03 g2 h, s! f! C
6 ~! N/ G# h* G& Y* g7 ?
clear-all-plots0 x4 g& ]$ u8 P$ |8 e- f* b+ k
Y! {6 s5 O% h; R ~setup-plot1
+ a5 w( {# C$ @. }
. w( _7 m8 \. r- L( xsetup-plot2
7 D9 J+ S4 Z! M( m$ }, r2 I2 ^
setup-plot32 T4 @7 t: O0 w$ l3 ^2 b; r8 D9 f
end2 L8 D5 U* c% I/ N- [3 Z! \9 ?- }9 D
% {$ u. f8 O4 F) L: D. G) D3 P' ^;;run time procedures* w% z) K4 H# N8 q& m; c
4 }6 p1 k, i+ r$ z# O: d7 d, wto go
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$ i: J2 W. f: E& L: \( @+ E8 [ask turtles [do-business]
2 i, r# d7 B% F% Q& C8 M* [end6 F0 R$ s8 E' ~6 n: Q+ T& x
; k/ c+ H- @, Z6 Eto do-business
8 w) |+ o+ ^" _6 \1 M+ {
) L% X0 `. s* w9 s+ w
/ o4 u! e; O) |4 G! p. hrt random 360
+ C# ^7 C' Q: a! I) y$ G3 j5 Y- r8 p2 B: ]% S! { _) x
fd 1
: ?: s' I8 ^: z$ F' ^- m j
, W& z3 B# I; P9 Y9 j# n$ d, E: [ifelse(other turtles-here != nobody)[0 r* \, W) y2 i$ E( w7 K
\. f+ s- K5 s8 l. K, r
set customer one-of other turtles-here' g$ Q5 g* C' C* C3 i
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;; set [customer] of customer myself
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$ |# e6 v& @" L- G* K7 d) ~set [trade-record-one] of self item (([who] of customer) - 1)
& `8 @; d% W) t( u[trade-record-all]of self- M4 l. U! d7 R" N* b! @
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
. i& a& \$ O9 Y[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self* N c- n8 {1 ~2 u6 y$ Q
% z: m: ` ~6 T+ C4 ~set trade-record-current( list (timer) (random money-upper-limit))( U( C! z2 N" A/ o$ N
* U; C; x$ U# x/ i1 T6 V
ask self [do-trust]
v6 K# ]; R' g;;先求i对j的信任度
& R7 x; U* f! c% J! n: x
% i. _ K9 q% r* J+ _3 j$ ?) f4 iif ([trust-ok] of self)
5 p. I$ q+ }+ b# t! y/ k;;根据i对j的信任度来决定是否与j进行交易[
1 Y: G; f% j; A8 S$ Y* O. Y5 ?4 }ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ i. ^9 _& _5 \/ c" ^9 \
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5 p7 ^- z- O& |' Z: |) G& x+ b' z+ c6 _0 I* q4 j/ I4 I
do-trade
6 V: y$ F7 r) h+ N" o }
5 a0 c" Y- t7 p0 B. v# Uupdate-credibility-ijl; b$ V+ x1 D$ S: K" t3 y' }7 C3 a) O
3 Z w8 y9 c, a5 \% m2 f% j% W; W
update-credibility-list
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& A2 g5 ^: S/ f/ Y+ h- u' Nupdate-global-reputation-list
, n5 Y2 j2 G" ?3 C: I1 F1 u6 S6 F0 ]: O# G! m$ p. T
poll-class& }7 |* \$ [ b& Z$ d
7 Q8 p& }8 H) [1 ^" I0 Gget-color6 K! R& k& I' S. O9 d2 R. B3 |
5 J2 \- C; {6 H% i" u
]]3 r5 I7 [1 F6 ?/ o5 i5 N; t5 V
6 Y& I2 D# T. g. l
;;如果所得的信任度满足条件,则进行交易6 v0 C T$ W5 |* B1 c: V
; h7 B( G& t5 R/ t) x# y0 Q[4 [+ _7 H* J; D" b9 d# O( @
4 X$ X5 A/ ^' \& nrt random 360
# n. U7 G0 \. ~2 ^
2 W3 c1 ~" P7 xfd 16 r$ v: T# l, z" _3 k4 a& v
7 p6 U# I- k* \ N. ^6 A9 a$ m
]
0 a# v1 u9 y, a' \ c6 p0 J1 i) P; M- {9 U8 S: m) ]
end
% C* h4 m- S; Q5 e4 _& t. s6 x# J6 e5 ~6 v0 i0 s# ~
to do-trust 0 }) X3 R: E7 a. p
set trust-ok False- n, ]) |* H0 C# {4 q- e6 H9 [ d1 }
( ]" X* K# } K B
9 b4 D- ^& A! C8 ?: ~$ K6 S* h% `let max-trade-times 08 _! w1 k( K$ F) k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 m3 S7 f0 @+ H! Nlet max-trade-money 0; c$ t* v+ q- r" K1 y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 v6 i! ^) C8 e3 q! i2 {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' a# `# R, E; R9 T. `
. J" U R y% S; L7 I& W8 H
" k1 u+ e9 v0 ]% J4 b% Vget-global-proportion7 U/ E; } _5 E, ~1 x7 w7 p+ g
let trust-value4 l/ q' ]2 Q0 S' x- j& z
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 V9 O. t( W0 g4 K1 X1 C
if(trust-value > trade-trust-value)
' A. V" M. E3 J' G' G[set trust-ok true]. S. E0 w j3 n# y
end1 g" X( z: _3 U1 j) f: ^! B. u
9 S" @4 W- X' L" Tto get-global-proportion
; u+ h* W2 M# M7 X, G% [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 U% d4 K( I0 Y; H: g9 X& [) Q0 j3 D
[set global-proportion 0]
: ~. P$ h% n% L' T5 M; J0 x[let i 0- p! [; J, K4 H8 J5 {
let sum-money 0* r( A0 b% l9 C- W* ~
while[ i < people]
4 [/ Q: N; D( R, q9 p, T7 Y# s[
$ |0 }8 M H! ^+ h8 Iif( length (item i
( |/ F3 D ^8 V( ^, ~& v[trade-record-all] of customer) > 3 )$ J, M+ b8 Q; N6 L! Z8 \
[, x8 t9 j/ T3 n+ U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 l0 x( `. q# V5 M* x* w1 V] _# p9 q' S5 F* P9 A1 k: L! @
]7 Y4 R: O: d6 l
let j 0
( ^6 x7 u9 R4 j1 ]+ [let note 0. W3 F0 g* `4 r1 q0 F' d8 g
while[ j < people]& _; y& c* B" h& D7 v; M
[3 o7 ` T* ]% k' }1 A+ i; X
if( length (item i
- f! ^# a% L Y! b+ u5 m[trade-record-all] of customer) > 3 ) S7 L2 {" Q' |8 U
[" |, B! o0 R* u) r
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ E* q" A+ e/ B3 P! B3 i# n% ]
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; m& q7 m7 c2 S5 N
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]9 @" [1 U( s* I) Q
]
& C3 u# R( @. {( H# u9 y7 ]]
- q* s5 z3 v5 y* R9 v. ? \) Lset global-proportion note
0 f" Q. B0 Z2 ?. c5 \' o* X]( A3 X9 v1 [# ? B+ y0 G
end. G/ `" J- b" f. u5 v
+ m& r( x& T" ~4 r5 x, d m7 u
to do-trade! R4 Q' V+ ~1 F" @" j9 [
;;这个过程实际上是给双方作出评价的过程) i4 W. F# c, T1 n0 x" l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 P. u+ L! U: V2 V& E
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' f2 o: Q3 |5 y, d* Xset trade-record-current lput(timer) trade-record-current/ [) y) \9 L7 |
;;评价时间+ [* l1 A) ~6 \- D+ ?7 I. X
ask myself [0 v, m4 ~6 K K# j+ o8 s
update-local-reputation" Y( e! f6 Z0 C. p1 T
set trade-record-current lput([local-reputation] of myself) trade-record-current
* A. L" V/ M5 w4 x- P6 a], w8 k7 }7 M7 }# Z6 ^: o" q: e
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; ?2 C) l6 n0 u. ^
;;将此次交易的记录加入到trade-record-one中3 h2 V+ S! _2 R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" D4 |" W' F* `
let note (item 2 trade-record-current )
) e4 S/ I4 M) p5 f! ]2 Qset trade-record-current
+ w: z M6 O+ c# a* j* R(replace-item 2 trade-record-current (item 3 trade-record-current))
* Q( e! f/ [* H4 w' k" Eset trade-record-current2 ?& b! r$ P* }4 Q! ], O
(replace-item 3 trade-record-current note)
+ D! e# u; z6 K
) W% `0 B! {8 N( S# R* ?+ `3 g) F% B1 L
ask customer [
" k7 K( p0 g7 N ]$ Z1 o0 pupdate-local-reputation' ~) n( X- E/ x+ M7 B/ N3 T* f3 P) T$ O
set trade-record-current9 Z3 j2 m+ C* Q& d. M7 c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 g- E$ S1 l2 w5 Z
]
$ a' k; E, v4 G* R( w$ f+ e
6 c, g q: ~2 r0 k( V; t0 ^* a( B d: H# L" U4 ? Q
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. h/ X+ _5 D9 p2 K7 {( @# \+ C
' _% a) x7 p7 ?8 {set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))$ q; c* x7 H. ?5 n$ b5 t3 J
;;将此次交易的记录加入到customer的trade-record-all中
6 t( M# R& j h- G" i+ I- gend5 Y" J G- ?$ ^
4 k3 v" N% g1 \/ g2 @
to update-local-reputation
4 x3 @* W3 D* P4 d& n. rset [trade-record-one-len] of myself length [trade-record-one] of myself
$ [- z7 I+ Y. h! S+ r# d. i* @. Q, } Y7 h p
; q" C2 `# x% ?$ k9 ~. u;;if [trade-record-one-len] of myself > 3
8 J+ G+ J1 }8 f$ g9 yupdate-neighbor-total
& F' M- E) ?( x- l8 U" M" ?;;更新邻居节点的数目,在此进行
! z) c; Y% s6 P# K5 Ulet i 3
* B3 A9 X! h$ r# Y1 dlet sum-time 0! l, e0 L. [: A: l8 {1 b3 \5 }
while[i < [trade-record-one-len] of myself]
+ j) g; {. T9 c% |9 A[/ }0 d9 q* Z8 d6 |5 V; F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 i' @! k; ~: o- ` w
set i( i' I" F' c2 H
( i + 1)" t5 w; X \* u( i% d5 y
]
/ d/ c- K6 u2 x. l8 \$ hlet j 3- P( C* J2 B# h" C' N, ?
let sum-money 0
" B, r1 ^) V$ T4 | {: A1 [while[j < [trade-record-one-len] of myself]
! Z1 _4 T/ ^* J0 b. z[, n. A2 p9 N* f
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)
" ^! O3 V& m; B: ~2 _set j
- v* R0 U8 \2 J( j + 1)3 y4 i* Q& D* h% W) O. N3 F
]0 z9 W) u/ B5 I* L
let k 3+ ]' \/ U0 I2 y/ [! D- e
let power 0
' Z7 Z4 X; E% m+ _' [let local 0
) n w3 }# L8 `( l c% |while [k <[trade-record-one-len] of myself]
/ c9 O, ~: g5 z0 e) d" C6 E[
& c; _2 y; Y }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) t3 \1 I7 o, `4 z# u9 [+ x, R
set k (k + 1)% O2 v: W- ^* g, d# y* c9 ~. ^, \" _
]1 Y" M6 g. f8 |2 ?- x
set [local-reputation] of myself (local): @2 a5 a& W( R
end
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to update-neighbor-total
$ p. S* Z+ {6 u/ e% z* ^1 S$ ?/ d0 v" y0 n p4 O3 D
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( g6 h5 S% [; @1 C
) ?6 @9 d( u+ B: J Y9 k
, J& X9 _# B6 Q7 q; vend# l i3 ]: ^8 }# ?6 ]% l5 U
8 b) a4 h6 h/ _to update-credibility-ijl * h* @+ S/ v. G
2 J0 H6 e: o b! z4 ~
;;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。
3 Q2 |6 ~3 Z5 f" r7 Y5 Zlet l 0
6 I# \2 O) ^3 {/ Rwhile[ l < people ]: J/ Z6 G8 z7 R; K3 ]4 y- ]! ~
;;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4 U2 D) }7 C$ s, |' G, L2 ~
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)( _. ?, x) D- P7 V$ `/ [
if (trade-record-one-j-l-len > 3)
& {/ ^: |% V. g+ X6 A7 M ^2 G[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
5 O. ]1 |$ [1 I* E4 s7 hlet i 3
" t4 ]! h% l% N' L. {3 p$ z Mlet sum-time 0& q6 R7 k) \ }' s
while[i < trade-record-one-len]
_3 q9 s2 h2 i7 e+ |1 z[( [& I+ \ j# Z2 X" n7 O6 d! b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), R' B- ^ Y9 R6 T
set i
+ J) l F% D2 ?6 g8 T; e1 Q5 b( i + 1)
& Z. ~' t& K0 U]
' o/ Z2 A( |2 j6 X. wlet credibility-i-j-l 0
: {( T( i0 b. S, m. e0 c6 e;;i评价(j对jl的评价)
1 [# l7 k8 T- ]! g& {let j 3
: v0 D H# x, Z2 j5 e7 Ylet k 4: B: S1 H% L( ^' O4 m! w* z4 C
while[j < trade-record-one-len]( V3 i! A8 U: k# x' j/ i
[$ k1 U( k/ g: N4 z, \
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
1 i: I/ r5 S" P8 m) C! c& |/ ~3 aset 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)
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( 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 ))
& J9 E9 G9 h: j! P6 P! C( r1 d( C$ ~" m1 |; B
' J! R/ q; F& {- z! K8 g6 ~let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 a9 |1 R% M, e7 |9 G; e/ Q- n
;;及时更新i对l的评价质量的评价
1 y; s7 w$ p" k9 Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 B; D4 j3 S! Eset l (l + 1)
" @' M) U/ Z8 a" H7 s# G/ S]
* L- T# O E; I( Qend
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to update-credibility-list
8 k+ B. U( \1 { |' H8 v# Flet i 0
' r a3 m5 Z5 m) Y$ l* ^" zwhile[i < people]
9 s2 W# L+ r( a! b8 k/ h+ A' } ?[. n) n1 G( R* ^3 A$ N! }: m s% Z
let j 00 ]) S: c" I: w
let note 0 z K" \0 H% Z2 K- V2 h
let k 0
$ r# U: S$ b, F9 ^, c; W;;计作出过评价的邻居节点的数目+ ^7 a/ h8 E2 C9 q2 Q7 _7 c
while[j < people]) D5 D" Q/ c6 A
[
1 O& _) O0 I% H Oif (item j( [credibility] of turtle (i + 1)) != -1): d; G Z, h5 X" Z$ n* I- W
;;判断是否给本turtle的评价质量做出过评价的节点. m% X5 }* g8 g3 R$ f
[set note (note + item j ([credibility]of turtle (i + 1)))2 ~* z' ~0 z5 s$ l, T
;;*(exp (-(people - 2)))/(people - 2))]8 Z! N7 ]4 S4 L' {1 p8 a
set k (k + 1)
$ d Z4 P) G+ ~+ S) Z]
3 q& Y% `& V+ y' ?0 F8 W Gset j (j + 1)" l' l( ^- ^7 I/ s
]
- |5 M9 | A9 c% Pset note (note *(exp (- (1 / k)))/ k)) l& O' r$ F3 ^; }! I9 ]
set credibility-list (replace-item i credibility-list note)
; [6 m7 l9 S$ Y8 X( r( ~set i (i + 1), s0 f4 P% ^+ B, C: y" w% q
]
* c& k5 H" |, u+ t4 Vend
) v g# D0 @$ J# [9 }( O. _- U+ ^
8 F" ^5 }! B+ Y D, m6 e; mto update-global-reputation-list
6 `$ i/ m- k3 l2 D C# p0 Ulet j 0) n( G9 @7 f8 E2 i( Y
while[j < people]3 G7 G& } f; M; }% X( T/ d
[. u3 t! ^9 o! ~( ~$ A! f2 A& v
let new 0* v* m- V/ {7 F- p! R) X: M4 ?! \
;;暂存新的一个全局声誉
% L) i" }3 X/ flet i 0
& ~; v' q! \ f# O8 blet sum-money 0
% ~# f! W; ?" x' w% T) v1 a! Xlet credibility-money 0
+ a5 ]1 s9 c, ] _8 L$ r2 R" s g5 ~9 ^while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! T6 z$ G! ]5 s" c. X
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' q/ G7 q6 I- \, v& F1 u) D
set i (i + 1), w5 c, o8 r9 y: M! D/ x4 b4 ?
]; `) e5 G) o- n
let k 08 B+ F, T8 p+ [% p0 _1 a& _
let new1 0
2 C# i. I$ s y0 mwhile [k < people]& d, X& p, z5 l% _
[
- r# }( |$ ^/ i8 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)
+ k1 C8 J$ O& ^: j7 K3 Kset k (k + 1)
5 p T, \$ w. @, I5 w+ M; L]
. x6 w$ C1 y% b& e9 Q" n) R* r: I8 sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; T6 r; W4 s% c! U& G* {; b
set global-reputation-list (replace-item j global-reputation-list new)
- H [& {8 S& I# Q9 H; F5 Tset j (j + 1)
3 U w1 C! V' l: }* M( u]9 S* m2 u0 H% }* O/ @% R
end
! [8 O+ a, Y \8 y
" J3 y5 y6 v9 a" Q) ]. y+ G6 k7 x D4 S7 l
! d5 D; y( q3 G3 d6 n
to get-color
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) q7 o7 c6 M5 I8 r' K' u/ {set color blue9 Q9 q5 Y) X- X. j1 H
end
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. h& K: d7 v7 hto poll-class1 V3 `% A7 b2 u, U0 { Y9 ]9 m* f$ b
end
% t6 o6 D0 W1 B. x" ~
- D- z- c6 L' ?7 `: z. Oto setup-plot1
1 t$ o# O: x3 y: _6 z. _6 u3 }
' {3 [7 I' O! [* Fset-current-plot "Trends-of-Local-reputation"9 q" X$ N& H% X
) D3 _% m5 \( \3 Q# |6 ~! Bset-plot-x-range 0 xmax
, u' d# @4 S2 D4 U) Z4 T
+ N% G4 {( k; l- `+ `set-plot-y-range 0.0 ymax
- I& G$ E* M, s0 yend3 c! R3 g5 d# W; J7 x
. t8 F" t. O+ T7 Z5 j6 {7 h
to setup-plot2
8 Z& s I+ q8 G2 H4 l: z: t8 C* m; n4 g
set-current-plot "Trends-of-global-reputation"8 y9 {1 ]6 @9 O
, s: T* j2 ~" Y
set-plot-x-range 0 xmax5 A9 L" T: O8 d
) a" X! O( Y5 ^1 Y! U+ u" nset-plot-y-range 0.0 ymax8 `+ |" `* w9 Z; q5 U
end
9 Z" @% w5 G6 ?; q, Z- {
1 W3 i8 q( T D$ G3 e, |* ^to setup-plot3
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set-current-plot "Trends-of-credibility"
) {+ t o% |, K* G2 U
* w! q( N3 F3 I: oset-plot-x-range 0 xmax# K7 `0 p; |/ K* f
+ U7 y" Q2 K- T
set-plot-y-range 0.0 ymax
4 I7 {* O6 W7 J1 Z: m8 E1 kend* w/ y) p1 n4 U1 c
( P. G2 ?/ G z) k% `. r
to do-plots
; T, F& n2 t c6 R9 Z Sset-current-plot "Trends-of-Local-reputation"
0 t3 E+ o `5 M1 t( Yset-current-plot-pen "Honest service"
; k" ]. V1 \. w& @end
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$ C$ \! {& a% P" f[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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