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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 x. s5 ^# o. x2 o) l" l/ J0 b
globals[
8 G' N& e' G) {5 ^xmax
$ N! D6 y' }! ^: X' p1 lymax+ x2 U$ Y, ^3 Q9 I6 @
global-reputation-list
o. q, ~. i" K$ o9 Q; e" ^0 @3 m" i: m. [( \. v% t
;;每一个turtle的全局声誉都存在此LIST中
7 [) G) u# F! k* A' [( b2 Vcredibility-list3 W) u6 s) {8 G- W) p- v' E
;;每一个turtle的评价可信度
~7 W8 |/ z+ R1 I _1 Hhonest-service
( ~/ Z# p+ Y- v' Kunhonest-service r& _, E0 P1 s- z
oscillation
+ a' C( i2 f, m5 E) lrand-dynamic0 [' c& O7 j# s4 L B
]
7 H- J' s. q0 P0 G, @+ x# _; n
, {" N: p* g# {- L' m% b8 t( l- yturtles-own[+ Z/ s( `! z# z: r. t
trade-record-all
, |8 r, f! K. l. `;;a list of lists,由trade-record-one组成
' R1 M H# b. A: d& x* \trade-record-one5 [( `! j, t- Z! N- a2 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
! k* F9 ?7 p. z" a3 ^" c: Z2 U/ ^" ?1 Z9 ?4 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]]0 l! z* V, X; l9 \: D `
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]9 c3 a- N. N/ E$ d+ ]( 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
/ i2 e& q6 `( g* v) r! tneighbor-total+ i4 Q# i& W. a Q
;;记录该turtle的邻居节点的数目) Y* Q$ b5 b- E
trade-time
% V& M+ R2 Y H* y# {- J' o" y% r;;当前发生交易的turtle的交易时间/ s) n' R0 U6 O* z/ x
appraise-give
$ }3 w* a6 O6 r2 \: L;;当前发生交易时给出的评价% Z5 r6 L w- e& F$ ^: _
appraise-receive
6 p0 q( G8 s' L5 T;;当前发生交易时收到的评价$ c5 ?! f6 \1 `( y( @
appraise-time9 c- H5 g- j' ]" c3 u0 n, d
;;当前发生交易时的评价时间
9 R# i K: C8 T, W9 x1 ~local-reputation-now;;此次交易后相对于对方turtle的局部声誉( n# n6 k6 R6 E9 h% z& R& h6 Y
trade-times-total
: ^3 d z9 |& g;;与当前turtle的交易总次数- X/ X) \! [; r1 n' e& ]. p
trade-money-total
1 z! t5 Y# k: U/ T;;与当前turtle的交易总金额
. M$ t/ o! s3 t" w @local-reputation* q* R# Q# m( G7 I6 f& Z V) y
global-reputation
' C2 K0 T: ^4 E- E4 e! l) ycredibility
- m6 A" p: h4 M) S% T# C7 N; R;;评价可信度,每次交易后都需要更新) R& v4 i9 o) v; [+ x& R
credibility-all
+ G- r7 M% y+ f+ v+ e7 n;;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 q7 ?+ g7 [
+ v0 [& x( w& W, O W# N;;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' R3 J3 K* y* Y2 h4 N. [5 X
credibility-one. P4 n9 a, O( m" }3 A, ]6 U9 `
;;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
$ L3 V/ i' ~6 \* `global-proportion
1 R. E( c$ ^' T4 m( qcustomer- A% t) j! V j2 c
customer-no# Y/ D. e" f, g3 c# G
trust-ok
6 H q& X8 x/ ^6 a3 Ytrade-record-one-len;;trade-record-one的长度8 [- {9 t! H5 E7 m: P" P# P2 {
]8 F6 j, ^! A: g6 p" Y3 v/ _* [
* _# j; N3 n5 s+ } P& m1 w: I
;;setup procedure
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: O, t% t( X! e3 L1 q3 oto setup# ^" ]5 z. [. W: w( [" O- M
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7 f- k; S8 [' h* ~/ r8 g
initialize-settings
0 P' {5 ^1 Z! I
6 L& l$ @- T9 Q$ @' K0 b7 Scrt people [setup-turtles]
+ u$ p' m5 i- E6 j
! j, L9 V# U% W9 `% m- lreset-timer5 H! n& i4 x/ v+ N6 J( J7 g3 r5 @3 w
& Z4 g* B9 c8 F @$ \/ b; g+ A
poll-class6 z' P1 A1 N+ G5 Y: f1 O* J3 g
& s7 z1 x2 i7 n; X* v4 f' qsetup-plots
. u+ `9 M) X( \. i% s2 R F
6 c% Q4 P" A+ }; G+ z7 I. J0 jdo-plots
* j4 z; I: s+ c0 y; eend2 ^. x5 R4 p9 D" ^
. B) v+ e4 M: A/ B7 @5 Q
to initialize-settings
0 U h* |2 B9 _8 b. l% i( r
+ {4 [% q+ t8 \set global-reputation-list []" ?4 ~* v1 ^" N) u
. A0 Z5 v6 @1 F# \6 A2 ?1 {
set credibility-list n-values people [0.5]* I. v$ F$ X, O1 B% h, w
. q% g' d/ q3 T: m2 mset honest-service 0
3 F8 h ?4 S, f" @! J; k- I8 Q
- g0 t7 c! Z( O/ b) w9 K; k# M/ Jset unhonest-service 0
% z, H4 a3 B3 r& h
: j. B1 I% x9 S1 r7 Aset oscillation 0
8 j; N' T/ S% h2 f) q- i9 H8 g
( A; l! \- t, |1 M2 u5 Vset rand-dynamic 0
. H; e1 p8 w) B2 b6 `" Tend
8 {0 J4 }8 N( o4 O p1 H
' n& P2 e! q9 Z" U7 ]: X: R8 Vto setup-turtles - y# o% [7 e; {
set shape "person"0 T( T& `( T7 G2 B T- ~
setxy random-xcor random-ycor( K+ {) a; b2 o+ O" g; {7 N
set trade-record-one []3 R% ^6 ^" L7 g/ {- T) n9 Y
+ R% c$ v E& _. ~6 O, L8 qset trade-record-all n-values people [(list (? + 1) 0 0)]
/ I7 u) u' G3 K' q+ G4 O3 T) W ]) T9 B. R* m8 d1 E
set trade-record-current []" m" l* X# |0 k' @8 ~
set credibility-receive []
+ M& _2 u, K+ A9 C" _set local-reputation 0.5
$ I" o3 c X: Zset neighbor-total 0, E5 g# W* M$ @: b1 Y: ~, q
set trade-times-total 0
: e( X2 {/ F2 S3 Uset trade-money-total 0
% f/ x+ V1 l0 I7 L! O- \' s$ sset customer nobody2 x6 I* \4 X: w0 f4 B' q* I5 Q' i
set credibility-all n-values people [creat-credibility]. M2 D5 z+ |; y1 L
set credibility n-values people [-1]
/ z* t5 J6 q# J8 U& ^get-color- D6 z. A1 e5 J. S
$ Z. ?6 D0 A. R2 Z$ F% O4 \end* ?! r. Q# E( X4 a8 ~
1 x9 s8 m5 `$ R' S
to-report creat-credibility9 N0 f" P$ R$ Y' i
report n-values people [0.5]5 L' k: }" Z4 R. @1 Y# r
end6 g! b/ R$ o, x( y" j
7 R! H7 r% E( Y
to setup-plots ~; l+ S) V& A
r0 _- p- E: W# i! o1 l- ?
set xmax 30. `1 M% G3 S6 b5 c
% W E8 L6 a: U3 \! O9 S( n$ Zset ymax 1.01 k& M. f7 \% O7 @! }1 z: m' b
: s$ }/ p3 g' N6 P6 K& H9 Iclear-all-plots
' k7 B, ^) I2 D' r3 K
! U. C% w, R3 n- E, xsetup-plot1
@ N( g8 p. j, z* O. L
- H, v7 {7 B8 I- Lsetup-plot2
- G# n$ M( l$ ]' R+ C# [ k- ^0 A, j% |8 v- l
setup-plot3
& E6 g% U' T; K- w" h" Uend$ L! N1 Z% L# W6 m- a1 o( Y
. Y# A1 R6 M2 `) B
;;run time procedures
p# W& {0 `8 b4 E) J0 ^: a
7 D2 f: J+ k: @ }! P0 z. w0 D5 Hto go
- J& z. T. J/ W7 W4 v- k4 z; v
) I/ r1 Y! z, q% D, }ask turtles [do-business]
1 W% h2 E: |% @5 e5 R) [' Dend3 O* B/ y! y8 Z) ?
t h2 H5 v7 {% Y; vto do-business 2 w2 z8 c7 o+ J: P
9 R2 `6 z! z2 V, o. u% x
% C+ Z% k+ V' i% R& V% ]
rt random 3606 t/ u. n0 h }4 q
+ X6 b4 ]. N( K8 c' W
fd 1
$ `% o; y. Q6 V4 }$ y1 \& V/ @; b5 P6 E: n3 {( h6 K- l2 \9 `$ V
ifelse(other turtles-here != nobody)[
) D' |2 X& C! \! A
9 Q" J& e; b+ |, m/ mset customer one-of other turtles-here
8 v o: I6 U6 e# ^
# J( ?, a& ~. M/ M2 d- i: w;; set [customer] of customer myself, H( N$ w- ?3 I% j! Y- O( h* ^
: W$ E8 O0 O, u) z' Nset [trade-record-one] of self item (([who] of customer) - 1)0 ]+ J( Q7 s9 D& d4 k a
[trade-record-all]of self
. N+ ]# H& h1 u" v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* X. D! _% F) z; C2 `! x. j: I
- z" j# M! {& p* f
set [trade-record-one] of customer item (([who] of self) - 1)- W. s$ Z4 q5 q" L! B
[trade-record-all]of customer; c4 ~$ S/ s @9 ~" `" R6 G
8 q9 U* @$ c6 n! N0 R
set [trade-record-one-len] of self length [trade-record-one] of self
9 z `6 ?( Y2 S) k. S- W. O# `3 e% C/ V0 ?% ~+ }
set trade-record-current( list (timer) (random money-upper-limit))
+ G. N# _" g% }3 R# }1 P. V/ o# `0 y2 _( z+ G- ]
ask self [do-trust]) E! t* ^ @2 h# h* h4 P. J# M
;;先求i对j的信任度$ E; d$ R+ |) `
* q, [. `: H& D; Y
if ([trust-ok] of self)2 l: ^. U9 l* q9 N2 ~* U
;;根据i对j的信任度来决定是否与j进行交易[
) O' q% v9 a) Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 M+ ^+ H$ i' k8 Q" k
/ s3 w# M7 M# ~4 z# O1 W[
$ ^6 Z+ s3 N% f( i; f7 _. k3 g. J
2 D" O5 z i! ^do-trade( w3 c: X5 I6 c& \3 u3 @+ w
. `% ^: G: ~' f; i) ]
update-credibility-ijl8 G- P: {5 `2 l, N0 o
d9 t2 H% o$ Uupdate-credibility-list) v/ k) M. s% _+ ?% b% n) V8 Z' Z
* _* w7 A3 j" z
- [8 F5 r3 e( X3 q0 b" \2 A
update-global-reputation-list
! B$ l0 Y/ p! K# A$ M q9 b0 X3 S& A/ ^% [% g: W) }3 [- U
poll-class/ h3 ^8 A ?; D4 R& ?, w
8 z( d' O" h2 Z8 B$ ^' ?
get-color4 L" E. X0 E# V3 a- z9 F
. g2 t6 {; x4 e# S, n! p* U- \
]]
% R" S) }" i9 h H: H# ?
- _3 y5 F- E. Q" g+ @$ ?9 @: q;;如果所得的信任度满足条件,则进行交易# \& ^0 f. E# R* M! o
1 r8 B8 T4 b7 f$ I/ J0 G
[1 \9 `# F2 A& j
3 T! e4 S% u: \! d4 K$ N
rt random 360
# c: C, d* m+ F$ B# u" G4 e' { ]0 Y O1 K, o3 P
fd 15 S& }8 a3 [) w/ |$ O% s# O1 }
# i, ~( s r' P% n
]
& N" J% B( [; @; k& C' }8 @7 T( x! q% _8 c6 r
end
. M8 m l# S* |
4 n. R( I8 A, B4 r9 B, \; H- n% oto do-trust
& N- J3 Z; E6 Nset trust-ok False
# m+ n {6 W& Z6 n
; |% H) O9 `" b; x
$ F2 w) ~: a$ E$ l( S* k+ @% Xlet max-trade-times 0
}. v& b! O/ W. U& M6 b: ?foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ L, g( B& h# l0 z( b% {2 R" A* Alet max-trade-money 0
+ ^2 _# A: J$ _$ u sforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* w2 a0 @2 n4 A! J7 \( p2 w8 \2 P
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, V4 M3 Y- G% L2 [$ C2 e& L8 H0 p- V# V- V) h
0 K" E+ ^, p! S/ B) n
get-global-proportion: \1 v" B1 x' `- B4 f2 ^
let trust-value
4 {) n) F/ v" M2 {3 Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)6 {- M: {* u- }* g- ]3 I6 u
if(trust-value > trade-trust-value)$ A# x- n3 q+ O2 `
[set trust-ok true]3 G# H4 Z$ ?' a9 x+ C
end. b1 D( Z& X. Z8 y% E% I" r
1 E9 | b0 v, V% g; A$ Uto get-global-proportion
# R- U6 x5 Y1 m& Zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# d2 w6 H' ~+ L. ^& m6 n5 _[set global-proportion 0]
; E6 o* Z& H+ X$ C( K6 z0 A! f- x$ ~( X- b[let i 0
( p1 R6 T7 B- k0 Y+ R0 f7 \8 ulet sum-money 0
/ m3 S* C6 T9 z7 {8 X( |while[ i < people]; { L- H+ k( q6 k. E& ?0 ~9 `
[/ {) ~& Z K1 H: H
if( length (item i
5 A: |+ }6 F9 K[trade-record-all] of customer) > 3 )
, q. W$ g3 F( W9 j2 _8 q% J5 ~" {; H[
0 h9 ~- J, ^* ^ e- Qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
p. k8 f. h* j5 W3 j]
1 A4 {: O4 D# T0 m# k( M& m]# ?# y7 U* y! c* N, y) X2 a
let j 0. y! o" L; V" }' _2 P9 E# w; [
let note 0
; B. T0 _+ u; {9 `while[ j < people]
. \$ G& i X( ][/ u& `4 I" X2 ?/ N: I" i3 \8 p
if( length (item i
1 G) [$ w1 T$ J3 q+ M! j3 i[trade-record-all] of customer) > 3 )$ h, o% p5 Q$ @" q
[
- p! K x, b/ X* B/ F* Mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% D6 o. R" K: Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! E% d) v. Y; B9 N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* v4 j$ G* C" D" d
]
6 f9 c k3 S8 Y]
7 z) Z& v* L+ r/ m: ^) Wset global-proportion note
# \4 g" r* k" I/ w6 B! }! ^]
1 o, _9 b4 g9 C/ K7 E% \end2 K2 u7 V' a! X# N* w
$ B3 f* |0 M. {! D% N
to do-trade( i' K9 I6 |. B2 C0 b5 X* V
;;这个过程实际上是给双方作出评价的过程
' }" a6 E0 H6 o. q/ Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, b7 R2 I4 P! D
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 @' @$ \, ^4 Z. I' e2 w
set trade-record-current lput(timer) trade-record-current* h4 ~4 U- x& G$ F0 e
;;评价时间
0 i+ ?/ k* {4 p8 J4 }ask myself [
$ T& L1 |- R) i& I4 ^! Xupdate-local-reputation8 L( E& I) C- B/ g
set trade-record-current lput([local-reputation] of myself) trade-record-current9 T( u, b. J" u8 K0 ^0 h
]' c5 d, n- r) F# Q! t3 F
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 G5 M k# ~. e, \ o; P. a. \;;将此次交易的记录加入到trade-record-one中
- n5 \/ w8 P+ Q8 q7 ]& M6 Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# c5 m: X7 z7 E6 n3 }let note (item 2 trade-record-current )
5 U, C# t5 C' K6 k! ?0 gset trade-record-current
: j) Z; d; h3 @, C1 B, _; q n(replace-item 2 trade-record-current (item 3 trade-record-current))" {' f" H. u- J% K
set trade-record-current
* d) ? J c) n! I' q Y; `(replace-item 3 trade-record-current note)
3 N& ~. j9 r- c6 `, j+ m: ^* d, _# c6 D) a- \! R3 w6 P! X
+ D1 O! U, s" t& J
ask customer [
+ U* u4 x. [" B" ^update-local-reputation; l, ^+ l n! V
set trade-record-current
6 v+ H; f' e/ C2 k. A+ F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& ?2 I2 t% o( R( J/ A]
- s, ]% V' u' Y; B9 r% |- j9 [1 t1 T
# w! n- c6 k4 T) `1 D8 M& Qset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
^, Z' t3 x2 j2 H1 O6 q( s' y% g/ h k2 m# s; C( y$ _- a
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 S2 O% J5 @6 A, Q8 a
;;将此次交易的记录加入到customer的trade-record-all中
* u8 i% }+ r$ i7 E' D4 A0 Aend; j: N8 f0 m0 a* i" M
! D" K6 X Y7 wto update-local-reputation
+ ]6 E, V n) V% E+ o; ^set [trade-record-one-len] of myself length [trade-record-one] of myself& j o T% c+ W% n; I! j
" M; J& T0 `8 }2 _3 T& o
& d2 V. Y- X- r* b# q9 ^
;;if [trade-record-one-len] of myself > 3
' u1 `8 \% O6 A3 a/ e ~update-neighbor-total! F: ^0 v# `+ g* J/ L
;;更新邻居节点的数目,在此进行. j- a) u/ U+ Q5 W4 V) `# g$ F' V
let i 3
0 ]' w* w3 D; b2 x' e1 I8 Tlet sum-time 0
1 h* u2 j3 M* P# q; b$ X" d# z" ]' Uwhile[i < [trade-record-one-len] of myself]! s# ~0 j* K8 b& ? Z* `. S* G
[) M, L! f. H* V4 x$ D* B; k
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. {1 a! W( |7 k. Kset i
4 ^" y" [3 c2 m% l( o8 h0 D( i + 1). E, h: B2 q0 h, V
]
5 c4 z: i8 V& P2 Z9 [ ^let j 39 l( H% H- |* o6 m" \6 v" k
let sum-money 0
/ H F( i5 U! n2 A- j* uwhile[j < [trade-record-one-len] of myself]
1 D$ O% [+ R, H0 I6 B[
( u. G' o( ^, c1 wset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)5 D: |# N1 o- _+ r6 _
set j* L! {' O) d3 f$ k
( j + 1)
' ?/ l0 [7 T: y3 P' [- T. t5 Q]
4 S$ B" t n$ \5 L/ I5 Elet k 30 z% h7 V3 {% h5 W; e. w
let power 0
. H! w8 y R/ \, `& j4 [let local 0
: Y, c. A+ N6 Z0 S. ^! ~6 Xwhile [k <[trade-record-one-len] of myself]
6 `- c+ {( o7 J0 I( D; I2 p[
: h/ `7 P) v1 ?; H: A' x! X- Mset 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)
. O. e/ t7 |0 F, ^* }- Cset k (k + 1)' I+ C& q+ x% c D& i
]
7 R1 T- I/ W5 ]1 |0 A+ m% Fset [local-reputation] of myself (local)1 P3 k! M- G" C8 Y, K; b5 l
end8 X" |6 I, s c! |: W
7 W2 ~ h& ~5 e' `- [' F
to update-neighbor-total9 b( t2 |' N- I' F7 @
) G) b& l) ^% c$ mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 a6 n* D9 R) j7 G- B
8 ?- [4 z. d( H7 B3 J
5 C+ D7 @7 U" M( X$ |, hend% F% S, [; Z( A* t+ }6 O
. [* ]7 E( \* Q v% P eto update-credibility-ijl " S- X; y$ ]; L( _+ s( B4 p/ a# G
9 @% j. i6 u( z! G;;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。6 {0 D, l5 e1 w5 `8 ]! B* p
let l 0
& ~5 D* ^+ x4 [; k! l8 M2 |9 iwhile[ l < people ]2 k* P- A* p- O% ?% y( ^4 q, C
;;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+ j0 J* W- N2 m. q" A
[
; `- s0 W" }+ N# d+ v3 E* r; glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; E" m1 `* q# Y+ ^, Nif (trade-record-one-j-l-len > 3)
& k) G6 L3 F X' u# q[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-one1 w) M6 ~# w0 b& v2 \
let i 3
4 I/ G' O2 G* |8 G; g: dlet sum-time 0; y2 r& t! c! c2 O
while[i < trade-record-one-len]
$ l$ L7 K1 `! ~" P$ Q( |6 x[0 q5 R9 |( D$ D |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# o7 z+ ?( B9 M- R/ n, T
set i
4 K6 h. {* V% Q. y1 d1 C; z( i + 1)* A3 o: U1 j4 A8 R( h+ M
]' u. d+ }2 J1 Q6 _1 E
let credibility-i-j-l 0! u- d( f0 V6 M; ^2 ^
;;i评价(j对jl的评价)* U2 t! [2 Y9 G' U/ P
let j 33 F( R+ l7 [$ C. C, [
let k 45 f3 U' d0 d! C# q- }" S
while[j < trade-record-one-len]1 Z% V# B6 `; L, E. U) e; X5 E0 I1 D6 P
[3 i" S2 u w; [
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 M( P* H- h( o& f( Q9 @
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)! S7 u; n6 P4 p% h' n
set j% a3 y' [% \' M& t: @
( j + 1); m* }+ O! k/ D7 Q7 t6 f5 p. n J6 s
]3 [3 r" I3 D- l
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 ))
9 G0 |# m" h* S3 C# {' A6 ?7 C# V4 @/ T) J, V2 V6 b) y. b/ f
8 I1 h) h/ W n H. t% z( J% [
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 V# J( F# [3 y; J) y5 M+ n; d/ A- @;;及时更新i对l的评价质量的评价
/ @- f3 Q2 y: @: ~( cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 }& o7 j& @* @7 B1 t- K. {
set l (l + 1)- O7 `6 Q+ ^$ ~/ s3 Y" q
]1 y6 r, N" q' _0 Y/ k8 g
end* u2 w: h: l @) f5 u. p* m
# ]) G0 s+ q8 Gto update-credibility-list
, q; b4 W, P) [3 d! A* ]2 ^let i 0' g' u+ z: x) q, F
while[i < people]1 E4 a& t. p! o. N8 E
[; N2 j v8 f% w5 I! G
let j 0
4 p- N/ c5 `- v8 klet note 0
/ P6 p7 O# J+ w( T. ]let k 0; ]0 C2 y% A) P g3 w3 q
;;计作出过评价的邻居节点的数目
& R6 u" y7 W( V4 ^while[j < people]
* F5 J3 p/ ^0 s. A[: f* J" l W. Z6 d9 U7 z
if (item j( [credibility] of turtle (i + 1)) != -1)
* G: m# D+ b- s; s" s;;判断是否给本turtle的评价质量做出过评价的节点
' ^, t+ b) K! O$ D) o3 F! E M# s[set note (note + item j ([credibility]of turtle (i + 1)))
, d- y( k# O- ?- |2 {;;*(exp (-(people - 2)))/(people - 2))]- [1 s! q3 \: [' T+ h. c1 r
set k (k + 1)- X3 h1 A: q+ s; i2 y
]: ^2 v" c) n% d9 W" T# e2 @
set j (j + 1)5 O' {' I) E9 E$ F7 }
]
1 A1 @, }# K; y' s! k6 C k8 zset note (note *(exp (- (1 / k)))/ k)2 x5 Y( Q+ u1 n2 K6 a) u% E
set credibility-list (replace-item i credibility-list note)5 A+ s! z4 _( R' l/ J O/ n7 M) f; D
set i (i + 1)8 i( [- H8 I' }: H
]
: ], d5 m; u: x" }, ?end, G8 W; ^0 o7 ^5 N. ?* R
% b8 @' G* E3 h. `to update-global-reputation-list
6 Q1 _- A4 S5 Z4 W3 f$ q. x9 Blet j 0" |2 J1 a1 f3 M, B. |. f, B" ~
while[j < people]. d. }! ?, I) y( W
[
. I: N) B4 K+ s, w4 U- alet new 0
# ` x9 m* `7 E% E9 n;;暂存新的一个全局声誉
2 t, s) `+ x* p# q+ d Glet i 00 N$ H" }2 j. b. K: p) k
let sum-money 0
* W% n% V4 V1 C4 K3 C! T9 Jlet credibility-money 0* [! g5 s' a% B# a( Z. F s
while [i < people]+ ^0 ~ i/ b0 A9 C4 ^
[; k: P/ g: ^- i# ?* c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 _' _5 X+ W1 E1 l0 O. r: z8 jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 i' ^. a+ O+ r5 F1 \! fset i (i + 1)
) K& f3 z) G! }9 z]
% Q6 R' Z7 p2 d/ k- u; G0 I0 \let k 0
! t; z' f5 w. O6 F, B- }$ Elet new1 0" Z, o) Z$ W& ~& n
while [k < people], V1 s. q- S" C
[6 e5 z H! C5 \1 N
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)* V8 N% } R" w( H
set k (k + 1)
" K9 `! y# @' C, s: F' _]
( F3 A- E6 v7 d- y/ j. ~7 Z/ z {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; g5 ~4 |" |; Q7 Fset global-reputation-list (replace-item j global-reputation-list new)
) N' a, c2 Y* z9 b0 eset j (j + 1)
: t8 U$ G/ d6 c( H]
; [8 o" _3 l% r& }0 _; P! lend
! H; l8 D3 ]3 ]: P* f; \; w8 W( `& }) F: C" p
7 N& j' `; d6 k& N2 K6 Z! j) @1 p' w3 @1 {
to get-color
/ k6 ?( k' _( ^ U1 c& Q! B0 T' i F- N$ }3 T$ y
set color blue: ]2 |1 u; D* v8 {2 G0 @# t
end
+ D- `9 ^( h& k/ d* n( Y. @
1 f& q; J0 t9 q* g6 U* w1 S( T- uto poll-class
/ Z( R0 Q6 ^; X5 j7 {# [) F/ c, f/ zend
% K; } v: s4 f8 f% s9 B: j. C# O% U- v7 s: F+ ?
to setup-plot1" L- i4 N" o. W3 K& M/ r* u
7 U/ b3 v" Z( mset-current-plot "Trends-of-Local-reputation", C. @! w) K2 K
- A/ @" _4 \% _ ]
set-plot-x-range 0 xmax2 y" L) ^3 y. w6 D
7 a: R0 N0 @- ]/ C C7 Gset-plot-y-range 0.0 ymax
8 D' G' | e+ t* O4 g0 {6 eend7 S, s4 h9 f7 {/ j# g
6 n4 u. K$ r: V; T) c& Y
to setup-plot24 x" w# Y7 h. b$ J9 Y7 T) _; g* X: T& S
% E5 X& b6 k( P& a, i& z D& f/ p
set-current-plot "Trends-of-global-reputation"
# I- N" B8 `) ?1 f/ E/ n) n0 a6 m: ]( t" |" h, B; @7 M
set-plot-x-range 0 xmax
5 ^$ n& E1 z0 y. J' y8 F! o8 b2 c3 W( L/ Q" P5 P
set-plot-y-range 0.0 ymax
( T }/ z5 N& l* A" H% c' Lend
, M" ]9 Q! m% r! R
( D, S* {- j [2 U3 q$ Hto setup-plot35 r {# b3 I b) F% Z. T( J8 p+ B. e, R
- a) ^) g8 E' z' b& ~set-current-plot "Trends-of-credibility"
9 `" F! u( F3 j3 _$ U( u0 p2 {) o9 e; O$ s% M, \" k$ Q, O0 G& d% F. ^
set-plot-x-range 0 xmax
4 b; s$ p! a8 X9 g' Q3 E4 r
; d+ j/ U8 ]/ _5 Sset-plot-y-range 0.0 ymax0 ]4 h( l! _' ~+ D& a0 c
end
. n# z# F2 E( L' F) `" f! l0 _8 E' T9 [7 V9 I& H
to do-plots
" H" ]3 t9 t+ V2 x, b; n2 c; cset-current-plot "Trends-of-Local-reputation"
5 z' F. ~/ u d' K6 J4 ^set-current-plot-pen "Honest service"9 f' K! n. K L0 `0 V. j; l
end m# D: ^7 }* z
7 Q& O! E4 P% N6 Q2 J$ ~6 Y; u
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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