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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
: ~! t" Y7 P! dglobals[* C* d& [ E E* T
xmax
2 I- R; e7 u& k1 H- o# b8 F+ Z3 xymax
, w- r. k$ }; F8 j' g5 Lglobal-reputation-list
! C; d2 W/ B! I
4 m: y, q3 H! t: |. y& v1 n7 J;;每一个turtle的全局声誉都存在此LIST中
+ }4 F' H- f" l8 \' ]4 W. ~credibility-list
. ?9 G, u1 I5 Y1 B, T;;每一个turtle的评价可信度4 O+ ~+ `& [6 \. H
honest-service
% P6 V( y& l6 y2 [% J9 bunhonest-service1 U; v6 n; s5 D7 x/ D% v
oscillation# E$ V2 g- R+ m% R3 P
rand-dynamic
9 O: g) J+ U$ K5 s" I* q( v8 @* R3 s]. b% J0 ^( B( `4 j
' V% x9 h4 o3 @0 Jturtles-own[. s& g; K3 R/ P
trade-record-all
# h. R5 t: i' q: w5 k;;a list of lists,由trade-record-one组成" y1 E& e3 |' A4 H1 H
trade-record-one
/ P3 Q4 ~3 X7 t& L, r r0 A6 p;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# S8 X0 `$ A; R! g
; U! ]' a+ ?% V) ~) I;;[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]]( F2 ]( M3 N. G& X' w+ h, X
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]. v; [- y8 {: [8 V( g0 b. p
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
) [ P6 N# A. }7 N/ t7 eneighbor-total
8 F! I: p# K' G; H. \;;记录该turtle的邻居节点的数目4 K) ]" j0 b `/ D1 X8 g+ {1 s* ^$ z. _
trade-time) \0 J. U- }$ G/ X* p7 S; U; _
;;当前发生交易的turtle的交易时间
' v6 x5 Z- D( N$ g Q# aappraise-give# m' x6 [9 b; w, ]" W
;;当前发生交易时给出的评价; y; j9 e+ o- X2 F% m% m
appraise-receive5 F: C* j- ~7 e8 v- a0 w
;;当前发生交易时收到的评价
0 {' \5 B9 Z. b5 C" ^+ ^- cappraise-time- v# N- u' y& p+ m# b, Y; W% f# {
;;当前发生交易时的评价时间9 E" {' d% m0 h3 b( F. g9 E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 f# j+ x% f8 y' J" U2 V+ Y
trade-times-total
6 p" U) G, g4 Q6 [5 O5 o, B6 U8 p4 ];;与当前turtle的交易总次数
9 p: F6 y9 g# w# o( O4 Ptrade-money-total
7 H L/ k8 l+ F8 B' b% U% {;;与当前turtle的交易总金额
& w( {" M* V; X, n" jlocal-reputation
5 W: X R' E% H4 B/ tglobal-reputation1 G# f: r! A6 w: ~4 D& N) h* o4 A
credibility
% i; w/ a) ^/ \, p3 E2 @;;评价可信度,每次交易后都需要更新
+ C' Z" I9 k, L! ^* Rcredibility-all
% l9 R }' K$ [2 r;;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8 I7 V( l. }( F2 [
3 @+ F5 C/ ~) o1 r3 E- ^
;;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
! y% q) A2 F! c! c, o0 Ncredibility-one- C% I' M& b, W
;;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
! z& A9 }+ s% ^! U b+ g$ ^: C; E9 fglobal-proportion# l7 b" p! A$ p/ W
customer2 }4 z9 v' ]/ C2 E a
customer-no
& [3 Z) Z+ U/ e- k* p- I* K8 Qtrust-ok
7 V4 e* o0 l5 S* H9 v \/ a7 qtrade-record-one-len;;trade-record-one的长度
1 k0 R* W9 p; B0 K, Y], r% ]0 e: H4 g: O5 K
" Y0 ?5 c, i9 {" G& U e;;setup procedure/ v, | x7 u5 D: q: i' o& |
* L. s% B7 W& p- q% B
to setup
* F, `* \' @1 F# W0 ?3 D: @6 X
/ E; [- t( ]3 U' c( U. \* D* pca
7 H# z$ r$ n7 o2 x: f
# }7 h/ [; V% i0 e: yinitialize-settings3 u9 V9 s# \& |( W6 c
7 n8 v5 U& w# ?6 U7 W2 h/ V! L
crt people [setup-turtles]$ z. ?) a; p& H
( k6 ~* M3 t6 l$ X5 p" ]) n9 h7 greset-timer% ^, k9 f0 }! H
- l% p( H# ]7 K( }/ e
poll-class" N' U' V4 i& J9 u* T5 y: J
1 ^9 w4 j' N6 R, A- x; Y( O' [setup-plots
7 f, i' K; Z8 ^6 @% J. d* s3 J6 N/ S' c. d, r( g7 R# x6 B: q# V
do-plots
% o' l, t5 w, Gend
/ ]: r4 m& o* w4 V0 n6 I6 X2 x- J
+ \9 `( T5 S' d% p; P- lto initialize-settings) ? P7 n1 i/ q. r7 l$ d8 m
7 N) n% @4 {* v7 K" I M* N: q& Mset global-reputation-list []
: X9 s# c/ K. \8 A+ g) E" f6 c* ]1 @: f" R
set credibility-list n-values people [0.5]; d1 F" f- M6 d" _- @5 d
1 h) f+ J' T/ i" D
set honest-service 0" w2 x( r: X7 ^( _, M/ L# E
3 \& N, }- o5 [ D3 u
set unhonest-service 0: U3 @- j1 u- M4 D7 _. R
G) s! Y7 f& E1 q* N" X
set oscillation 0! |7 z1 m, J, k; b2 S: w/ \
2 b& W" j9 h( p- t! X) v9 vset rand-dynamic 0
) Z4 A; m( C% f+ I2 N/ i9 Oend. k K' k# k7 T* P3 n- ~
& B6 b' d3 ^: F" ?3 I$ _! g1 ^- t( }to setup-turtles ! J. U H9 i. L& M5 U F
set shape "person"; V/ }4 o+ J( v; y7 x" w
setxy random-xcor random-ycor
0 r& l) h) J9 I8 dset trade-record-one []
2 n) \& J; x. H/ K6 s: v5 I# S- Z9 S$ y5 s9 W0 h `2 k
set trade-record-all n-values people [(list (? + 1) 0 0)] Z: p- h+ y3 z! A
9 x* M/ N3 V8 Z! k+ k$ b
set trade-record-current []; b: J# [' w8 A9 u+ F
set credibility-receive []
. s6 a$ |1 a1 T4 wset local-reputation 0.5; S A' ^6 o% _% @) p9 {
set neighbor-total 0% U0 c/ W' ^. S$ M2 B6 x
set trade-times-total 02 O8 j+ `+ k* Z" f8 d
set trade-money-total 0
' `1 X2 n8 H. j$ c) Z: x! @& Rset customer nobody
) J* l% }! \3 g) ]7 cset credibility-all n-values people [creat-credibility]
4 U4 [; p& t! C$ x1 K4 Q/ yset credibility n-values people [-1]
" S" j+ c. w% h1 y. `5 Wget-color ?% f+ G3 x' H) V( _
# L( D( J, O" O. }" N
end) C/ M+ F$ T* L8 b5 R: k
6 z3 N; U( r& n3 Z0 G. t0 A! nto-report creat-credibility2 H1 D3 |1 W6 h% N
report n-values people [0.5]0 ^8 [, x% W7 G g& {! ^; @6 A
end
5 @' W# k: a, O( X3 {- P& L0 x: O# v% U3 V
to setup-plots
, V3 c% R4 z0 U1 H! A
q+ a( o& u$ x; G: Jset xmax 30
' H; |: p9 }0 R' F& |0 o- f& x* S1 V7 q2 ^+ E0 U5 v
set ymax 1.0
, s: d6 N6 x2 p6 {& ^* C0 h
; ]4 M: @- j% B8 yclear-all-plots6 L$ y: V) z% y2 ^& f% j% l
! A, x. B T6 g u, L( C# O
setup-plot1/ B) g* K/ S p. f
0 I$ l6 W. F" D' o' B
setup-plot2 E- s ]/ N7 A" g5 g6 I4 C B* b. j
( G- W& a0 A+ ?1 s! x4 z) s8 k
setup-plot3
1 ~8 c; r4 i6 o. Tend
! d/ W7 x9 n6 K
& O, U6 B" ]4 ?' Y8 F2 C;;run time procedures( Z- d m$ I+ f0 j: [
( I; b/ e- b; R' R; r
to go; A, I& A+ S" \
! E, `! b3 ~( P; Y( a. F
ask turtles [do-business]
' M" m# N6 ~! ?% [; M" l! a) rend
5 g0 L" }9 F0 g7 M3 n
2 v0 q" d5 b6 o$ N& N% H4 J5 Cto do-business 8 ^8 C5 p" X( J* M( ~% U
6 Q7 `! X0 T8 E7 S. l' U3 j
' ^3 q5 p) n! Jrt random 360
& T/ B. V" g' e& s3 \3 y& T! M: f; A$ k. _/ m/ z, h- H
fd 16 c% Q. s6 t) _& r
2 p- u3 h; S& r8 N8 g
ifelse(other turtles-here != nobody)[
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+ G4 a4 w# j1 E, A% H3 L+ k8 jset customer one-of other turtles-here
* f; u u' x, I% Q. k2 M3 R8 R5 [5 Y4 z+ J/ p( f6 {" Q
;; set [customer] of customer myself
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1 w C/ c$ K$ y0 h, p Dset [trade-record-one] of self item (([who] of customer) - 1)3 w) H, u2 F: I6 z
[trade-record-all]of self
6 N% g/ H: Q, t0 v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self" R# D2 E* J4 U8 R7 B D
7 _' v3 e6 e) p) i/ W. H& Oset [trade-record-one] of customer item (([who] of self) - 1)
# T" J, y$ o1 M/ I( Q Z[trade-record-all]of customer
6 u; n) X9 o! H6 N. O+ x
3 E( |3 `! F; G' Z) G7 Oset [trade-record-one-len] of self length [trade-record-one] of self
0 }; t3 {% `$ I+ p
: f: B3 ` C# X2 i- c; Vset trade-record-current( list (timer) (random money-upper-limit))
5 t* g( O( U3 l; E4 y" @8 w% M; v
ask self [do-trust]
3 m! z6 l; w$ H# S2 @* A6 s;;先求i对j的信任度( U; y3 V& P- v- e" H E
+ N( [1 O8 y O: L3 W: {
if ([trust-ok] of self)3 F, P9 v6 z' |# Y0 A
;;根据i对j的信任度来决定是否与j进行交易[ R7 g. O4 d- h8 [7 \8 x6 O
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% B6 y; d$ |& \; ?% }9 H
9 L: ^% o) ~) L6 l& p7 G' q
[
9 _, [3 K8 B3 F" _ O2 O7 T. z& R' z% n+ w) Z4 U5 ?" m
do-trade+ }' F9 B2 \* M) J6 r
- `3 P$ c+ u }1 L, \; C. r& |
update-credibility-ijl( K/ H( [0 E/ s3 y
( o8 \1 P; U# e+ D; l/ F" B5 nupdate-credibility-list
6 h, D6 O) Q: R3 }( x7 i
* }. X, E9 |. g- \. D" }- O# T, s/ u; x, f" ?6 s9 R, M
update-global-reputation-list$ h1 X$ ?/ F* ]8 u( E ]2 J" w
/ G& q! i G9 I' _poll-class
! h) n: U0 h5 `0 b2 Q7 v: d R* V) k" s# U9 z% h7 ], ]% E1 v
get-color
2 H) z+ @/ d( |- d7 G9 y' B' V
$ J6 V3 `; H: [" |3 l3 ^' F N# R4 w6 v]]. W" P1 h$ z R) N" ?
% ?8 B8 s/ T( u9 w
;;如果所得的信任度满足条件,则进行交易' n+ a- K+ b5 w& z0 M! x9 l
7 V/ k4 l; V9 o
[; h/ D' I' \% C5 T3 Q
" P, ]3 x+ E: ?% d" ~4 G; P+ u
rt random 360 \+ C* g9 Y' \2 K3 ]1 z- r
! A- v0 `: B! h7 Z9 H9 H# {/ ^fd 1
`( b9 ]- [: M# g! N
% S9 G5 E% K7 @) E]( a4 r! l2 _# Q" j$ Y3 S9 U5 a% B
1 O4 d+ S3 Z& r, P2 J6 Kend5 q/ t& q. D( @ K
, H# ]4 x, _8 N" V) p) f* d* o
to do-trust
4 p2 N0 x9 u5 u; X1 T7 U; O' j Dset trust-ok False3 Y8 b& ^: z. v5 A9 X# i
, O. \; N- Y8 t4 G& K* K% l1 M& [0 e3 K" ]1 r
let max-trade-times 0
' f+ g4 r" D; G5 Eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! F1 M0 o+ x; f& \' ?/ d1 D7 I+ e9 |
let max-trade-money 0, ]+ h k: V% ~- x% s; b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 c2 q% z2 p- 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))
1 g1 l) Q% o5 G* y/ w3 C" }6 N, ^" f+ [, O4 v! ?5 H- ~2 \5 N
/ f r+ M" @+ [+ F( R% rget-global-proportion
7 h! I& [: x, [2 _! m, Z% q% r0 ylet trust-value
) V' X# j: U2 ~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)+ h* h e& r; E/ h
if(trust-value > trade-trust-value)
7 V* d- X1 d4 u% K T1 O; j$ T: J[set trust-ok true]% q q( K% y3 x0 N7 h/ D
end3 @% y7 ^% g# J; {( R! L0 Z5 j& u
0 R$ C7 J* `+ Y" o9 jto get-global-proportion' J& o n, d8 w* k! u) c; h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, F0 R% | [# a. i8 _& a[set global-proportion 0]/ X3 G. R4 U1 }- b. d
[let i 0
7 x5 W9 l6 K; a9 n4 w6 r: T4 j5 u. Rlet sum-money 0+ q. O: g7 B: D9 b% x! k
while[ i < people]: W9 L8 c% k3 }+ n: j6 W
[/ m! F& B0 k$ A. C8 E& R
if( length (item i& r( J4 f4 x9 d0 l
[trade-record-all] of customer) > 3 )
6 K* G1 B! q( ?. `* I& u! E* }9 J[% d2 N5 C8 X$ s5 A/ P1 @% p. v
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)), P' b' J o$ K
]8 P {7 h' N& i% j' P
]
; G3 M- j M7 S8 `+ U+ d1 t: ilet j 0
! [5 R1 f( l0 X3 h6 M- nlet note 0/ E; F7 f. Q/ F T: H
while[ j < people]
' `* H& Z# h: l9 v& @; y[
2 z! U5 c$ [3 a, pif( length (item i
: M n7 ^( Y3 g9 m- M: \& U[trade-record-all] of customer) > 3 )3 Y, A. A& y) U9 ^5 K6 x
[6 U, l1 c. I* X* T/ q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! Y: |- n, Q* f! Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 D2 k b& Q% n1 T, }( B- I6 h
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] U. l0 {" p9 F$ f8 N
]$ Z+ a" X& |4 k( A3 \" l: n
]
. E) {1 C( N0 L8 Fset global-proportion note
# d4 G: ^ e1 ^/ e c4 T) a9 U]8 j+ b- t S% |: M0 U* {/ U
end2 U+ u# j( o/ q8 u6 i
6 ?! g' T8 O* N$ l1 Jto do-trade8 {% q1 n! Q1 p
;;这个过程实际上是给双方作出评价的过程4 _+ d( W2 c5 h1 Q1 x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! J* P# U3 f* D6 P8 }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* J$ K! T* Y. V5 _set trade-record-current lput(timer) trade-record-current# V1 `3 q# v y
;;评价时间
' ~( u* F$ ~* n; a) b u2 r) |, Cask myself [- Z$ }, \1 q0 E+ S5 @
update-local-reputation+ w9 y+ q ?: t* q* [0 }5 f7 b8 h
set trade-record-current lput([local-reputation] of myself) trade-record-current
. j" G* a4 n. S- y6 e( r]. s! a) I8 c, [9 ~; S# m
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
Y& P2 s2 v/ }, n0 D% P8 x/ S;;将此次交易的记录加入到trade-record-one中3 x+ d# A; l: o
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 |% S1 ?0 c' k
let note (item 2 trade-record-current )* Y3 D9 b, \) B# k m# p
set trade-record-current) x2 d0 E4 q( }( _: I
(replace-item 2 trade-record-current (item 3 trade-record-current))
: ]; T- P! i: G ]* xset trade-record-current
. m- j6 P# w& a$ c' Y9 V(replace-item 3 trade-record-current note). e* I% l; ^: n# i5 P
& z3 g1 \7 m+ ?' y7 N/ s" W
- K8 `% ]) O4 @ask customer [, f3 y9 k; u) p Q. a
update-local-reputation
7 R, C& H' u9 Pset trade-record-current
9 y* s |+ w% h/ ]- m9 {" h(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 n4 \5 H0 ~# M7 [( G
]9 M/ [6 E# z4 {( }0 O z* f
3 a* N! D/ [5 e1 `, T* h
: |+ J; T# {) jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 }/ H; z% L1 u6 g) O5 i: v* |
4 f7 e" N* x2 G5 S; y4 ?
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 ]0 C; ]# `' A3 Y;;将此次交易的记录加入到customer的trade-record-all中
' t% Z& _- W8 l: [) U: Iend6 ?- x, O0 n( d7 N2 `) l1 }9 n. {
+ i$ T2 p7 ]% Eto update-local-reputation
2 x. O/ a" X' T. f6 b! `4 Kset [trade-record-one-len] of myself length [trade-record-one] of myself' \5 f, G; i5 g. M# L) k
. o9 |9 I/ m2 ^) r$ c5 S0 `0 L
K/ Z5 {- p8 P- M
;;if [trade-record-one-len] of myself > 3 $ L/ _( o p6 O( o
update-neighbor-total
0 H/ n2 M+ j. \! k1 X;;更新邻居节点的数目,在此进行
2 l* b+ P9 G+ R6 s. B! @let i 3# V4 A0 h# B9 Y) }
let sum-time 06 q% `% N4 `# q- k- U" ^% c3 t9 B
while[i < [trade-record-one-len] of myself]7 k% l, E% f V: u, I+ C$ R2 ]+ V
[
; D: w5 l/ n, Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 t6 Z& v# ?* V- K5 e5 uset i' c$ ?/ W4 N! A/ G: E
( i + 1)
) Q: B4 u- i! X5 W$ Z]+ K+ H D( W: f% U& e9 j ~
let j 3' e* G9 q0 B$ e5 f) @
let sum-money 0
3 A( @* \0 ]/ F$ G* V8 h( jwhile[j < [trade-record-one-len] of myself]
3 ]( y; {) M- @: F6 F. {+ F3 }[: p. o7 g" w) Z6 n
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)
0 H& h' C3 U- h9 T, n* }, ]% `set j
I+ \8 U: O# ~: A. T7 B* K7 J( j + 1); b# @, @# | V9 z4 d6 e. [4 n' a
]. ^* [: l. @& V9 h3 F* x
let k 3
7 m* i1 t- l6 U# D% G# Mlet power 03 z# m n% U0 |, P
let local 0
0 I8 ?; w' i: A/ b" E% Lwhile [k <[trade-record-one-len] of myself]' F4 ]3 v0 W4 r8 m5 \( E
[0 i4 t: ~+ {: H& I- l! S
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)
. [2 Z5 f4 S3 X3 S) z( R5 [! cset k (k + 1)- H9 P" l: H) @2 q7 ~+ L& I
]# ?# z* f% G4 Z j+ ^* J* D+ s! X# m
set [local-reputation] of myself (local)& E1 ?' W) w, F
end* r5 x9 |% ]% N5 b
5 X ?! {; z$ e8 T
to update-neighbor-total
: |8 e' n# ^7 b& B+ H3 r5 S# p7 u7 V1 C) l7 H7 h
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 I( s# O0 ~, G5 S" v; Y1 w
8 s. G5 ?2 q/ ?
. C& ]& \6 O& s& K4 iend
8 d! i+ P" t9 a5 h3 U* S9 l1 V1 U( S) Q( S1 C4 p+ c
to update-credibility-ijl & c; E, l8 ?" A4 Q( I5 o5 G
2 b- P; C( m. ?# Q" I0 u
;;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。
( W1 E. y& O4 A2 Plet l 0
2 `5 M2 a8 z% dwhile[ l < people ]
+ Y1 g. t& H/ Q# [* i6 H- ~, I$ o* n;;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3 @9 y, N$ O0 A. D3 I4 G* i8 i( X4 f2 A# j
[
; @3 ^+ C i. A* K- dlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
m. R! l, z$ {6 Sif (trade-record-one-j-l-len > 3)
: T& L( R+ m4 M[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
) h3 [9 P, {5 s& {let i 3 {* `4 h% ]" T9 b+ ?
let sum-time 0) y, T' V1 n/ d, _0 {
while[i < trade-record-one-len]
; S# F3 k0 [. k[
- l8 [" _7 r1 K6 tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 m8 E# T3 Z+ gset i' F* h- {* X/ ^$ {
( i + 1)
; N6 u& |5 s/ z$ ?1 W7 g]+ I( q( w# }, o* f# O' ?5 D4 V
let credibility-i-j-l 0
4 N! W9 u& B7 U- E1 w# p, x;;i评价(j对jl的评价)2 C6 N' `; M( c% c U2 w& _
let j 3
7 I+ O+ L6 m+ r) ]5 k6 K8 Wlet k 4. o: L0 K# `* \6 F% ~% k
while[j < trade-record-one-len]4 r3 X* z$ D5 o0 \3 \1 q: K
[6 D: o. I3 |4 X' p. [
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9 c, H' Z' V. j, X) h
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)
" [+ d Z) e! ^$ C$ [8 Tset j( ?" p* n8 D8 P" u( H. A
( j + 1)4 b; U/ r, I& z3 `0 M; V
]
1 M9 g: r4 p& G# a1 \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 ))6 Q* r1 k& o" y6 Y
6 I4 P( h9 ~2 B
k* f$ Z# J9 O nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- K; f: C0 s6 Q( Z+ }: [;;及时更新i对l的评价质量的评价/ q- L/ W) ?( C C7 z7 t* A
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 ?0 o* B5 W+ b$ y$ ?. P- }! Hset l (l + 1)6 }! A3 Z* N8 i# p
]
+ _ A; ?8 s* x1 I3 z8 tend: e9 x, ^1 |" L# K- f
0 @5 y4 l1 y: ~) S$ }to update-credibility-list
8 m6 W7 m. W9 `+ b% Ilet i 02 O* ~; j/ J" A! l3 d$ i
while[i < people]6 O; {. U; P6 \5 M
[
# B, d/ _0 h# Q7 u; Q! _let j 0% f) e9 L4 O$ Q3 j0 E
let note 0
: C9 K) e9 ~; I! P$ O" olet k 0
/ x* l4 O) h; \. _6 n;;计作出过评价的邻居节点的数目
$ {) ^+ n! O' j2 _) H4 Fwhile[j < people] d9 c3 L t- G0 H/ k. Z
[
+ B9 k9 U0 p2 f) G6 Aif (item j( [credibility] of turtle (i + 1)) != -1)* j1 a1 S5 Z# z: z$ l: v
;;判断是否给本turtle的评价质量做出过评价的节点
. n/ ?( V/ f6 [8 m% `[set note (note + item j ([credibility]of turtle (i + 1)))
`1 ?/ J# N& |% i8 };;*(exp (-(people - 2)))/(people - 2))]
9 }8 N! p5 r0 s3 c6 |set k (k + 1)
: }+ w; H$ r7 H, K]) E! V o/ {# L5 G, X( _
set j (j + 1)8 t- X; @! J/ r' z5 j8 E
]0 x# e- ^. |" x H
set note (note *(exp (- (1 / k)))/ k)5 I4 w2 C0 _) ?7 M! K! N- w* s
set credibility-list (replace-item i credibility-list note)
. O3 M) y+ |4 Dset i (i + 1)2 {% {1 ^9 v, W
]* u& t6 i! `& W: ~2 H
end( C# y$ x6 p# o7 w0 c2 b: `" f( R
+ M5 E: J# a Z4 s, q2 r
to update-global-reputation-list$ E4 C Y0 ^$ H) s/ G) L) M+ U$ l
let j 0, ]" n. h0 Z& |: H! Z8 b
while[j < people]
3 k- p$ c( [/ q) I[
5 ?+ t9 H' ]$ a; H; T1 R* r3 @5 ?let new 0
W- [- {8 ]8 G) X; u3 S8 H;;暂存新的一个全局声誉
- J$ d, S3 a2 F: o" \" T4 y) slet i 0) i- N% Y$ N; d B8 M
let sum-money 0% m) n! [* M8 P) z: ]
let credibility-money 0
+ t( J+ N% T% d$ H, d: {while [i < people]
1 `$ N4 N4 R- B( b% [# L/ y[+ D% @7 Q# e8 Q% P6 u
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ N% |' p2 E" d$ W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 K' @+ u" E8 w: c" T6 ]1 [
set i (i + 1)
5 H# C* J+ @4 g9 q$ K$ L]
9 a8 g/ a( H9 t7 Ylet k 08 i6 y4 o {! s$ p3 r0 W
let new1 0
" j/ |/ A4 I. b! h# g9 W/ Ywhile [k < people]
; q: U4 Z2 ^: l& b+ a7 \+ n& J" i[
7 t& d$ r/ ^) C& Gset 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)( D$ {1 D+ K. d# o; Y
set k (k + 1)
; |7 O9 q I5 M. A* ~0 ]0 c]" j. J" \, j; Y; z6 }9 p; }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % F) x6 M& ^- K8 H, l
set global-reputation-list (replace-item j global-reputation-list new)
# A: I5 U5 L) X8 _set j (j + 1)
" a, n1 u# _4 D, x' K$ n]
4 \3 z' o5 R3 w2 wend
: I4 m% t2 s+ }! l
2 |3 n' Z. Z" b/ ]: B3 B, P: N) l7 n/ c. H9 G
" k+ u% ^8 l4 \. s3 Y; v) b; Tto get-color
# S$ S$ ^" S: X- A3 ]: t9 x* B S0 _4 L% I, m+ E: e- S' L
set color blue
& F* @9 D: c2 Z5 Send6 K0 Q' ?+ l) d2 z& H* b- h
& r- x- `# W5 Q9 N* ^6 T& x
to poll-class$ s/ b: B9 V6 [; d( v7 M3 S
end+ ~" e6 q; [) w- ^' `2 V- E
* A7 U+ Q; n& s- m: o/ Y
to setup-plot1
- b4 `- ?: P2 J$ T( l1 r: n( X1 ?; G) E T, y
set-current-plot "Trends-of-Local-reputation"
* G4 y; i" u7 {6 W: |) B6 q3 f5 T4 J2 w# C
set-plot-x-range 0 xmax
: ]& d% t( ]9 {
! y6 R& @# u5 E9 Xset-plot-y-range 0.0 ymax
2 A D$ _) B# |) d0 Hend1 S0 |! s# j3 Z' P1 c
- |1 V8 x% }0 ?( s. o2 z, e% L
to setup-plot2
; @, E) R7 p( c6 I- H9 V- s
7 q6 K8 R. p j% v2 r2 |$ Tset-current-plot "Trends-of-global-reputation"; f3 h! C& m' }4 G$ t
" f/ f$ g, e- T, b/ C }2 C
set-plot-x-range 0 xmax
) r8 |$ t# O) J3 m; N
2 O: }* V' F2 m' @; s; u- Dset-plot-y-range 0.0 ymax; M0 V: ]1 U6 F5 _% Q+ i, V1 _' R+ m
end
1 F6 ?( ~ _6 l, t7 j9 J
( ?: p2 [! W! ^7 J) X6 N9 L; ~0 Lto setup-plot3' X0 ]% e6 x: n/ `
# `# Z2 a7 i) S# m3 U6 Eset-current-plot "Trends-of-credibility"
' G2 f, F+ R+ u1 x: f
, J% ?2 V C( l% _set-plot-x-range 0 xmax
3 u1 C7 G j7 q7 w
3 r; j# F# e) @ A2 s5 ^& [set-plot-y-range 0.0 ymax+ X% w' G! _+ d% y) \$ Y2 n0 ?; ^4 P
end
1 N q, y9 l7 m& z; u$ f: K/ h$ P# w0 a' h- b# u
to do-plots
7 t2 ?( W; n R( I B' j) _set-current-plot "Trends-of-Local-reputation"
- d2 b2 k+ V% O% F3 m @set-current-plot-pen "Honest service"
9 }: Q8 }+ M: f! h! l% [' dend/ B' O: O9 X* u; h
9 N& L! T t7 b
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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