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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 |2 \6 @, C8 s# g% t# p% u7 gglobals[
5 }$ z4 H2 m% ]0 _xmax6 M/ q; U) |+ l9 ]2 `% k
ymax* l. S7 ]7 _8 }3 r' w0 j- I' O/ V
global-reputation-list
) u8 v. O+ G+ Q/ p) `# _3 j0 s- \
;;每一个turtle的全局声誉都存在此LIST中
; S3 N! Y/ ?8 m9 D: r$ r* vcredibility-list8 k; D. C( c6 q& n
;;每一个turtle的评价可信度$ b$ f9 x- A. x$ i1 A$ {( I) g
honest-service, b. b, J$ |$ G; Z& N5 z
unhonest-service
; W. b/ i J- D5 ?3 }5 goscillation
3 u7 `3 h0 E8 v6 |, V% F. y* Mrand-dynamic
* f: z% ?6 G0 k( O]
; t( b, B6 |1 b& ]" F! p! n- H3 S
, c, I9 X5 A& l+ d% \turtles-own[: l/ B+ T. G" g, O: D5 o
trade-record-all7 N) q, J; O3 m8 |% s: W
;;a list of lists,由trade-record-one组成# D: e/ c1 Z, `
trade-record-one( M" U+ z+ o2 d- y7 x+ C
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录! U) ^' j4 R7 _ O+ R K
' O* s% r3 [0 @( u2 ?;;[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]]
! y9 B4 |* I' ?! B* e2 xtrade-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]
* G+ M4 R* p6 Dcredibility-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
7 B) u, V4 K3 O3 u( m! pneighbor-total
" y) Y1 |/ c, s6 ^;;记录该turtle的邻居节点的数目
% P$ `- @8 ?4 S8 Y2 \7 f2 S. Itrade-time" R( `0 T) W0 O4 g
;;当前发生交易的turtle的交易时间) E1 s+ W% Z& e+ k$ u
appraise-give+ j# U7 s3 E$ s
;;当前发生交易时给出的评价! t0 x6 r. l0 H, u, e) T7 q$ \
appraise-receive- ]9 p) D. O6 n5 Y3 d9 L/ w
;;当前发生交易时收到的评价
" e# p5 C8 ~' f6 A. Gappraise-time; |9 T( T, T. I' q
;;当前发生交易时的评价时间
2 O% r- p. C! l6 a/ D5 ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" ]$ g0 Y2 I& e1 H$ ]trade-times-total
. K8 l1 i9 T2 \- @! K;;与当前turtle的交易总次数* s& [4 l0 b$ h$ |+ @; N
trade-money-total
3 d- i0 Z6 [; Z- N; J;;与当前turtle的交易总金额, [" @* U% S2 h1 M; @
local-reputation
/ A' V; S7 f7 Mglobal-reputation h4 \( B' ?1 d* g" B0 x' I& r( p
credibility7 R# d2 @5 w8 M! E0 a7 J0 X
;;评价可信度,每次交易后都需要更新
0 N% A' u+ O' N: ^2 Kcredibility-all0 @# i0 e4 W3 \7 p" u
;;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9 Y3 ]* V" t t6 E" z ]
2 J) R4 o9 T8 F7 h* ?( p$ i
;;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
: T) n3 ]8 S/ e$ h y1 u" acredibility-one$ {, ?! z; `6 E6 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
9 C' c' j. [& X- T- Sglobal-proportion) C& r, n- F# ?3 g9 y' w8 v
customer
: h( [1 @0 i" M: T! P5 l* ecustomer-no- P8 P' ?3 l5 S$ B/ _
trust-ok
$ y5 d4 S" f2 ^# @8 Vtrade-record-one-len;;trade-record-one的长度
8 m. z4 j/ u& n9 F]
: Y$ Y: a( N$ f' K& @8 {" i
/ u3 N- c" S1 Q;;setup procedure
- L8 e3 @" w9 ^) f3 Q8 r+ s: ~2 L! u9 f' H
to setup! z9 B2 V& W+ i# S
; D# S3 [3 e8 U( J/ @ca
/ c# h- Z) m4 y! h* ^
3 H0 ]8 M y5 f! @initialize-settings
+ W# ?, }8 \# \# h. X- o$ E8 n! ^7 y6 @% R; T6 r9 O2 V3 a
crt people [setup-turtles]+ F* _$ Z. S' A
9 F. b7 d7 `8 Y" Y8 y9 S' ~( _- l! Freset-timer M, Q7 j) O! \/ U8 I8 o( z
9 P- A) @" ^# Q" R
poll-class' Y# }" A+ {0 B3 U
3 K3 O5 {4 m$ _ ]% usetup-plots! h3 c( ?7 ~9 U% z' }# z' u
" f7 `$ P0 V; o8 n5 W1 f, Q
do-plots$ j6 L9 H. w/ X9 H
end
( N9 n: Q* U3 _* j" B% @( U
7 q* W: H4 M2 i4 Jto initialize-settings! x. X! v. ^1 _3 X2 K- y' r" @
7 ~$ L9 m) W5 w/ c! _
set global-reputation-list []
0 i, L: [! M, ^, m, P0 d R
8 k% e& e5 |8 dset credibility-list n-values people [0.5]+ T& R% w* ^4 u9 P+ P/ z
) U: C$ x% ~9 l u! m: Gset honest-service 0
3 Q, T1 i% \( q! ^7 x
4 J9 V: z: e4 _" o# z5 bset unhonest-service 0; a$ y& c7 q( B3 c
" X3 }# d: Z. f: } I
set oscillation 0
~) I* |" ~1 H% t5 y& ^3 [2 {# P$ K# i0 Z+ \, V3 s# F" u
set rand-dynamic 0
8 g/ Z. A. r8 Fend
# v- z/ r2 Z! e# I0 Q$ S7 o
9 j) X7 `5 j, _" Wto setup-turtles
9 y* S }* Y6 K5 `: t7 S& z4 f7 Zset shape "person"
1 y5 `! ~: A3 |% Wsetxy random-xcor random-ycor
( w1 D+ _ z% L, O+ nset trade-record-one []+ ~7 {! G) H. i4 s7 R0 b; t
7 @/ _8 Z" T* n, y, d) P. K. x
set trade-record-all n-values people [(list (? + 1) 0 0)] / f! o0 ^) u; i% V) _+ X0 m! Y, s+ x
+ p4 P' g- ]7 o5 k) ~6 v7 p8 ]set trade-record-current []5 a w# S( F: v* ]
set credibility-receive []
& C6 n2 P9 F, ^6 qset local-reputation 0.5' ~; D) M; d0 n
set neighbor-total 0
6 B$ \7 G( T" e& p1 ^set trade-times-total 0& x1 G% k3 T1 a |# u6 n8 Y
set trade-money-total 0 K y; v: O, w U
set customer nobody% w5 K# }$ ~3 x2 e3 A) X
set credibility-all n-values people [creat-credibility]
# K- K) e; y1 Mset credibility n-values people [-1]' e9 h" X4 ^, H6 f6 i' v: C4 U
get-color
9 R9 G9 L1 U5 ]/ N
6 @% f, `/ V' Jend
6 F; Z! u6 W# f$ z5 Q4 X! a. W+ n! P- a: q9 ^8 b
to-report creat-credibility6 e5 m& a @1 y* _3 A" R. Y- v8 `' c8 O+ ?
report n-values people [0.5]9 P! L$ `& H: D; u: `
end- s0 j6 O/ U# m7 n
/ I6 N$ J9 o, W5 A
to setup-plots
/ l9 r& Y3 V& o
; @& h6 ]7 u4 D/ D1 I1 r8 tset xmax 30
7 t, n& ?; a8 Z9 }, j/ b( w# i$ L& \- Y$ ]0 L% F! x! i3 O
set ymax 1.0
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clear-all-plots
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setup-plot1
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8 ^. A1 b3 [% B, A, Fsetup-plot23 n' s8 N: y8 ?
+ M- R6 X6 X. C
setup-plot34 b- A4 y0 _- d' t, u& u4 f
end( j8 z, F/ y( I6 [. J) K; T
( c" r# }/ I8 v% _
;;run time procedures- @; z4 m, I _% Z: @& q
% V& Z2 L3 n/ H" mto go
1 q3 W% z5 e2 u( T% a
?6 o& P' Q+ K: nask turtles [do-business]
8 g' t% x% Q L1 T5 T( eend
0 J) m6 P) |; d: s" |8 }1 f
3 Q4 }! X3 R6 w9 qto do-business
" m5 Y d5 C5 _" l! d+ L7 s
, T. P1 C2 s2 Q+ P( ]* X% U. a. k) m8 S0 _
rt random 360
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+ o& f% C1 k9 o9 afd 1$ p4 A7 a6 G6 K: `6 J
9 ]+ l+ \; U6 A, g% B0 v, Y7 s+ L& x: ^$ h2 g
ifelse(other turtles-here != nobody)[& X2 ? z7 i, l
9 C( y3 K, S, ~4 u5 Y
set customer one-of other turtles-here
( k3 H3 O7 r; Z3 F1 w5 m
! ]; Y! ]1 H+ H# A, R/ d;; set [customer] of customer myself
) i& M7 _; H) O) D/ \( p4 S T
' ?4 C! Z; K/ Tset [trade-record-one] of self item (([who] of customer) - 1)# a" }9 A. {+ j& A* c
[trade-record-all]of self
0 D- D5 e; V7 W7 c5 g# X' m6 v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& q$ O) u9 q7 w6 V) D0 d
' v; _5 h% D4 f. t- G( n# C8 }) ^, f
set [trade-record-one] of customer item (([who] of self) - 1)
T" f/ P. m }# x) j4 h[trade-record-all]of customer' {0 [! D" n4 ~0 |9 {/ p
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set [trade-record-one-len] of self length [trade-record-one] of self
+ J7 `" R+ r. d6 |5 i8 q! m, @" O$ I3 j3 m+ R
set trade-record-current( list (timer) (random money-upper-limit))( n, |3 e0 p" R
/ Z+ w X3 K/ ]; N1 P ?
ask self [do-trust]: [: q& K8 j7 Z
;;先求i对j的信任度, v( {% ^! n7 b; }2 C# \
6 [6 ~) @, y/ @& d4 `/ Dif ([trust-ok] of self)7 ~- G+ W9 L6 U; |' P l
;;根据i对j的信任度来决定是否与j进行交易[4 L3 h, [) U2 H! o3 B
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( |/ R$ K( L* T
& X" _" F+ A9 K! l
[
5 d+ R7 o6 c" B8 z, o2 X
$ Y% F, Y* L, N" \do-trade, v; a$ E6 A3 T* ?
7 k* _) I3 O7 ~* Q. P$ q1 Xupdate-credibility-ijl+ J1 U5 S: W7 v1 h
% f" Z- a8 I4 u+ S% y2 l/ Qupdate-credibility-list2 `( `! P* h1 l
4 \4 B: E t; u. }# c/ p6 `
: T R' z4 t+ o9 a8 F1 k# Xupdate-global-reputation-list
) D7 E) ?: y$ l8 t7 A+ D$ I4 e9 Q1 L5 v' k6 T6 a0 P5 S" {9 j8 R) b
poll-class
* y c$ _1 S: i8 `
! q9 [, J$ P3 G8 @2 u9 O9 s; dget-color
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1 m8 G; b9 G, Z" T]]8 ~5 n) v/ h5 s. V1 U' d
* I1 G" P9 \" I! U: u
;;如果所得的信任度满足条件,则进行交易' a$ u2 ^0 S, Z! G: g# K. w8 v
2 x: q3 b9 n7 s! q7 V[
9 h! q: B+ ]' ^2 u b: z+ E' _: U% w+ A) `5 B& A( D" z/ e! A! l# [5 {
rt random 360, h# I8 q/ G' r/ n
5 Z9 F4 j1 m' ~7 O0 H: F+ D8 {( I
fd 1
. T7 b" x" p: l \* {# ]
0 @- t$ o2 C8 M& L& e9 T]' {' {1 W, a( L
- N2 `0 w& i6 Z& Rend% m3 `/ d# Y3 q, R
+ T( W; l, {8 X1 V8 q# Hto do-trust 8 h9 Q* a: K9 t, Q
set trust-ok False
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" ?* q: ]2 w; s2 h K* X0 |: Rlet max-trade-times 0
, Z3 x+ D& n" Gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ X( M3 @- q+ t2 l; m2 Q. a6 w4 l
let max-trade-money 09 Z: q/ J& ^& m1 r) s3 S- T$ W
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ u6 _* K. [# T
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ ^1 ?# B% i3 @# u- {
) c0 |( _" |, I: C$ M
9 Z8 o/ D. y9 F5 f$ F- V4 Gget-global-proportion
* }: V! v5 d0 Hlet trust-value$ [. X9 U1 t1 h- x; s! n5 S
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), w3 k$ S! O/ I' ^3 \7 y
if(trust-value > trade-trust-value), c; `6 R& i; U8 y+ K) \3 q% @
[set trust-ok true]
! b% \ m3 R7 p" B4 j% I) {end6 M5 Q# z) [# ^9 U& K3 F9 x
2 x0 [9 {% n1 e( Z
to get-global-proportion
6 D( q6 R: k3 q8 X3 J- J! Oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 @6 [, Q+ Z; d4 [& _' Q8 t
[set global-proportion 0], n2 T6 l1 G: X
[let i 0
: ?# H0 Y- ~6 G" X2 d* t; y* Blet sum-money 0 M! y% N. Q5 ^/ ^" K
while[ i < people], s- e1 a; u' H
[0 C$ C* t# l* y& ?0 h, q s
if( length (item i
5 Q7 ^1 F' O7 G% D2 ~, S2 }" E[trade-record-all] of customer) > 3 ) l+ |6 ^5 c2 }: Y( b
[
" [) N1 x- l' Q' k0 Fset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): A4 _$ O* B0 L" V4 p
]4 D' q: a4 e( E& z2 F
]
i% O- x; c/ wlet j 0
& r" q" Z$ }6 }8 ] Plet note 03 u1 a8 O3 W6 D9 _7 a+ I! Y
while[ j < people]( @! T4 p, K; [
[
4 |( t+ ^* `* @3 `! }8 hif( length (item i% D- K5 U, @' j! j
[trade-record-all] of customer) > 3 )
/ V: i% A; I2 c; j[2 U; n5 h4 u0 Z1 f( l
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 ]7 ?% o5 c5 w6 r; H3 Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. H& q% M9 d% _% b3 M
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ }4 l% K# s1 m3 |# I- G# }% |]6 l+ a4 Y/ b" S. n4 ]. _$ g7 ^* ?
]9 O# B) A; n, `/ L( }1 z3 o
set global-proportion note" u) R7 @& M6 W
]7 Q9 v3 A4 W& E: {
end
N, V! q) E0 T1 L* _/ a3 i6 ?/ o3 h& ^9 h7 T
to do-trade
! i* F1 @! o7 |+ V! I* W* U6 K;;这个过程实际上是给双方作出评价的过程+ y- j, _/ m- e( Y- G4 U7 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( W V# E4 D/ w. u0 I2 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; v" m/ \* l$ v5 ]0 A4 |+ A ?! {
set trade-record-current lput(timer) trade-record-current& k; S, H. j" W1 P) v
;;评价时间
& i' s' D+ k( f! V+ s; b' hask myself [1 B- {* i2 o" m( i
update-local-reputation9 E6 S# I0 e" ~- D8 v# X, B
set trade-record-current lput([local-reputation] of myself) trade-record-current1 c* [. a9 C* ?% B3 T0 k% P; B! A+ u
]! M, p; ?' B& e* g2 a* P
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) Q; g4 b. E/ G% I) ^
;;将此次交易的记录加入到trade-record-one中3 u5 X5 w! D* q) N3 a9 B. [8 G+ ^8 a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 Z F; `/ J4 |: w2 p% g+ J$ I" wlet note (item 2 trade-record-current ), T7 t3 p4 z# H
set trade-record-current# D6 {+ |4 a0 L9 z5 @9 i3 b
(replace-item 2 trade-record-current (item 3 trade-record-current)). P: E5 U2 l; a( J
set trade-record-current
. L! X; {5 q4 A" k$ C0 y" C(replace-item 3 trade-record-current note)
/ i1 |3 t3 o* d
/ `4 c, m/ ~: T# Z. v& H' b! H- W2 w. P# m+ t* a
ask customer [: a0 R3 n/ ^' t, P: w
update-local-reputation
9 H7 r* m, Y( j! @1 Y# r8 Uset trade-record-current
/ _& z( C" [" {$ f! K(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
' {# S! K4 e+ T" @& z5 x4 z]0 d$ H9 k+ i9 X& b4 N/ h7 L8 r l$ e
" m7 R7 J2 e0 `0 W3 B# X3 c) D& ~" t
1 k( H$ w/ q, M# s1 }set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: B) h: f; Z4 I A0 A& @0 V
+ }6 z T3 B! w" xset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ S k, I8 R% r6 l" K% }0 l ~
;;将此次交易的记录加入到customer的trade-record-all中
6 L) {6 e( k& B) f# N* `: B) _2 dend
5 {$ S* i( E8 p( r2 u- K: e9 M2 e( b; a
to update-local-reputation
: h' a3 g/ k5 w5 Eset [trade-record-one-len] of myself length [trade-record-one] of myself
3 i/ t) H& ]3 R
( O& t2 |1 W( d1 ]# N
- S) X- U3 `4 f( T1 k7 g;;if [trade-record-one-len] of myself > 3 : p6 s; @7 z8 y: I4 r7 a7 \. F
update-neighbor-total k- T* v$ e( |6 v- ~6 N
;;更新邻居节点的数目,在此进行- ~; k# s. \. _0 H7 K$ y) v$ A
let i 3
5 Q: F' Y. Z; j6 l3 Elet sum-time 0
* e1 h, x5 d& T9 p* J. u7 ]9 \. @9 Rwhile[i < [trade-record-one-len] of myself]
* x0 ` e; X6 {) `* i7 @8 ][
. v* t; u1 N6 z& fset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! Z, z! v3 }) f# e0 @' L' [+ C3 v
set i
; {0 Y& b6 A& N. ]( i + 1)
# J' R+ ?# z4 c+ T `/ | n]3 L: Q1 _* O8 I
let j 3
: ^! P% }1 n; R4 Jlet sum-money 0
1 @) i' z" K- o z; ?while[j < [trade-record-one-len] of myself]9 x/ l2 I+ }& h3 j. k
[
4 s* z, W K& n) gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time); S% ?7 K3 Y: h% L% w
set j
( U. ]- Y+ D8 {( j + 1)
/ b6 @0 K7 o( |/ n2 `' l]
) }) u& a. k' o. r0 e* @; z1 ylet k 3; q8 [1 y& A" A, a
let power 0/ l' H) ~* N1 c% ^) O
let local 0
4 B4 k: J; _ Z5 o( [while [k <[trade-record-one-len] of myself]0 g, j; X |1 U) c: |
[7 M5 U0 k6 E* t! u; F; w
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) + w. @* p& d! ~+ H, c% L
set k (k + 1)- h5 n+ H4 g/ p( e3 E! z
]
0 M( L2 {3 U: J/ e% ]5 P2 \2 H( Zset [local-reputation] of myself (local)
+ I" Y6 U/ X" oend
: ~; ^& l% C2 ?+ \% Y7 g2 x% ~3 W# I1 a( H+ U
to update-neighbor-total
( q8 g0 ~" a% M; r5 X6 s
& d9 D( O! v; V& v: nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ h* G9 \& k/ {9 {6 p2 d$ U
7 B3 A1 R3 c$ H7 q+ D4 q+ l" T. `) y2 C" m0 J
end
; i3 {" R& l" b* C7 w* Y: Q$ y0 w$ k" O4 G7 z0 y- x
to update-credibility-ijl
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;;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。
/ n( W4 M* B/ t+ F$ m7 C/ `let l 0/ v# F! z8 M3 U2 }. [ U% a
while[ l < people ]3 `8 i/ `4 m( [
;;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- u% E% R+ g' k2 i' s, f
[. e: S! @0 c- H' K+ s& {
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ U; s7 t e7 o+ Sif (trade-record-one-j-l-len > 3)8 P* y: }5 s$ g9 S
[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 d3 \3 ]: d/ Z7 s& @" @
let i 3* |# G* K" |5 c# d2 |
let sum-time 0; O. }0 L1 n8 {$ j0 R- ]
while[i < trade-record-one-len]2 [4 W' H! g, h/ A& R
[3 d; N5 R7 F/ u" n, A7 ]/ `
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: Q8 L7 X- D2 I2 c; lset i0 ]/ P/ C4 w, C. c) q+ @* Z' a
( i + 1)' Z+ |; T" H. c3 W
]
, h$ H4 d1 q$ P U: u$ k% D* F/ qlet credibility-i-j-l 00 `: h9 M+ t& P. X. E
;;i评价(j对jl的评价)
) o% N" k6 X# R8 d8 Olet j 3
* j5 M8 x) L. h+ L$ g8 U* I+ @" Llet k 4
- Q- r+ a2 ^5 L6 I6 awhile[j < trade-record-one-len]
* J% Z6 y% Y5 V[
6 _6 H0 H, |" {( L% j! jwhile [((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
2 j: X2 W1 d! Cset 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)
- r0 J! d- v" h. z0 Aset j
) s( h& w0 i, M4 v( j + 1)3 }- I7 I$ Q' x' {
]" F6 O! G; T" J, w1 s; b
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 ))
# n& l( }2 l+ _; @9 H, t) D/ o* r6 b" p7 {" Q: o! w
+ L- W A, G8 `5 ^% ]
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& ?& u& H- X# w Q+ `, S
;;及时更新i对l的评价质量的评价, O* P1 {* I' L
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ |* | r2 V( ? Zset l (l + 1)
( X" K- }. J- e/ `% q]
0 R$ f8 o" A: |) P6 l* ]end
! K2 X) t! Q2 O: l0 ]; g6 x2 u. |5 b0 p5 M
to update-credibility-list
; I$ S0 ~& T- {- x* b2 e. `) Xlet i 0
" j; b# D# p" O5 q( W2 p1 rwhile[i < people]. I) y% s q1 U [ d0 {
[
* i1 n/ d% h, o3 b: S2 K ^let j 0+ M$ N5 l! l" P- k) q- t' B4 f
let note 0
* {( U( I3 G$ Y: w: t: x% Elet k 0
9 K$ |& Y7 B. x9 G8 T5 z+ N;;计作出过评价的邻居节点的数目$ Q5 K& y- U& I1 `" x7 Q: ]
while[j < people] h& O6 Q# o* K9 K0 f: M. T
[0 k( w" [) a9 [ u' U
if (item j( [credibility] of turtle (i + 1)) != -1)
- S- A8 G# G' Y. i+ D! r3 t;;判断是否给本turtle的评价质量做出过评价的节点
! u% r; K; D w# g: e[set note (note + item j ([credibility]of turtle (i + 1)))
0 i: L8 C& x% ^" K;;*(exp (-(people - 2)))/(people - 2))]7 y! U. E0 H# |" Q7 `
set k (k + 1)
! w- `8 u9 D, I0 u$ L) ^]/ b7 @4 Y" F: S! r' u( x
set j (j + 1)# \1 g. h7 L9 _" i2 ~2 @
]
5 ^" p6 Q+ z9 m6 D' tset note (note *(exp (- (1 / k)))/ k)& g4 O$ _3 u3 v' M! E# x, o+ B
set credibility-list (replace-item i credibility-list note)7 @& a w, n# i- y/ A3 g9 ^6 h
set i (i + 1)
# |# Y5 l H7 q]
8 O. i9 I! y: y$ R+ x$ Z6 u& \end
& G- d0 o1 s7 x7 t
8 m6 j/ E- f5 q6 Kto update-global-reputation-list5 k- l# V8 Y% U2 z8 \& q6 Y, g
let j 0( E [, G, h' q5 H
while[j < people] C( \1 K8 _' B( @/ _! ]6 J
[
" Y$ D) n+ @1 b6 P; r" o k% dlet new 0; a6 B% p: ?* @0 z8 V( ~
;;暂存新的一个全局声誉$ c" I; S# ]0 {, j
let i 0
% r4 {4 Z' [, C( H) Y/ jlet sum-money 04 n3 E2 K S; o: q E( ]
let credibility-money 06 M$ Z, E. x4 I+ B
while [i < people]8 w( c! Q+ i& j! G; B
[5 I9 _+ i S3 K, `6 K( q$ l t1 }1 M
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, ~$ |$ }0 L' c2 w: Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 K+ W, {4 a% h$ m' I) q; c
set i (i + 1)( g* i) }6 N0 D; k5 t
]
! p- B+ r% _# ^3 A: [; Olet k 01 c0 z+ n0 Y6 R* Y
let new1 05 k" A, ]. ?. {6 v0 ?
while [k < people]
$ s+ q( |0 p" s[
& s2 F8 K+ {/ @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)4 |* b/ D8 a5 [- d, V' \; z/ o1 b
set k (k + 1)1 g9 a) s8 Y5 G
]) F4 r# R( r* h& G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , c* |2 W# R+ p4 w4 j' ^4 ]( U8 H
set global-reputation-list (replace-item j global-reputation-list new)
7 Y8 V& z8 A/ \* j- nset j (j + 1)
. e5 I2 T; x( a) A; x; f]
' g2 c' w D3 r; V' n6 Aend
1 d( B; P; m/ \5 v' C- S5 k S, y* l+ y
9 N5 |) F* B$ H) L4 M [% H$ R3 D8 x
& M. J( L: A; e- l1 p
to get-color! j. L8 i0 k) v
$ ?' Y* d. T; T9 n8 t, N7 [3 D
set color blue
8 E( x( O8 n8 K/ J( i4 y) X0 _end
: F# t. B6 D1 i5 b% k6 _ {1 s0 n2 V( K5 O' i2 ?
to poll-class+ l, C" _* o7 ?: {4 u
end
% l: H) g( C- @: Z
8 o# e$ H+ ^7 v2 |( jto setup-plot1/ Y! X/ T: T9 a/ }
, f& D- p) S; x% Y' T) ^set-current-plot "Trends-of-Local-reputation"
7 L4 ?5 K5 k! o {9 p U! T4 s
0 }7 ]. A1 l4 f3 g, W4 S. Aset-plot-x-range 0 xmax, k: r. N# O* f+ Y: {4 E
5 K* n G1 K% K5 Bset-plot-y-range 0.0 ymax. n% s- |1 k/ l6 m# b3 F* H
end& d8 f8 [" d/ I/ V1 C- _
3 r" B! P8 n: g3 j, K
to setup-plot26 c b5 |- X2 X2 l! k) H# R3 Z
8 Z7 J- @* w: Z
set-current-plot "Trends-of-global-reputation"/ ?1 L3 R3 r: Y" ?9 n
& q5 j3 @% a p3 ^0 G
set-plot-x-range 0 xmax4 D" l: Q" S, E7 a9 {
- B( x# N( U% }- X% p* V5 Z0 Mset-plot-y-range 0.0 ymax$ Y: i* u9 x& d. M6 v! s" U- `
end
: v' m# M, o% Z
% P: }7 ^) y) M k$ w& g1 R: cto setup-plot3
7 e; w: L, l7 E/ [: b/ v. L- P8 Q ]( ~0 h$ \1 {( g" k0 G
set-current-plot "Trends-of-credibility"$ V& y" o; w `! W
( H# T/ u( x, g4 U
set-plot-x-range 0 xmax
0 D( ~( v6 i+ p) G: S1 e( E* |
3 A, Y5 u/ @0 T2 z% R- u Qset-plot-y-range 0.0 ymax
2 r( t1 }4 Q3 q( g& mend9 ^7 v' T& ^* o' D' ?# P) K$ @
0 t% M" L! p. X+ t5 A4 qto do-plots+ j7 t* W$ b$ I, x2 T# T
set-current-plot "Trends-of-Local-reputation"
& B, d- O! n# P* o; h& c3 eset-current-plot-pen "Honest service"/ H9 N8 @+ n" o
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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