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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 Z3 X2 [- x- q$ Sglobals[
: [# @4 m; {; h: \. c5 Gxmax5 ^9 t9 X/ S& |
ymax6 u7 i* n& W- \# `2 O
global-reputation-list {7 s* R% V5 W* u" ?# \, m
* U5 L) Y C5 u# `5 v6 A;;每一个turtle的全局声誉都存在此LIST中* p4 | j7 p1 @. X! |& R
credibility-list
4 E, i9 W. _5 f8 C" M) u% b;;每一个turtle的评价可信度
5 G$ V; g1 \. U; A2 J8 \3 B+ fhonest-service$ p# ?1 Z1 m- t
unhonest-service3 |- r. S) Q4 K4 d/ u2 Y( J& {
oscillation
! T i( @( G! y3 |rand-dynamic# D2 n8 V2 j' m* @+ b0 g! s
]8 ]6 R) p/ O+ m) X
, Z( q8 K2 r9 G6 j1 l9 bturtles-own[
) R1 X6 x+ l2 w5 _trade-record-all
- m- M5 |1 a8 z$ d! j0 {;;a list of lists,由trade-record-one组成& S% B! M3 ^' O, r
trade-record-one
/ |9 d1 f C1 A' L( O) V4 V;;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! j; | R [- c8 Y# \2 f+ C
! W$ Z6 Y! e3 T, R;;[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]], E; w# z: G) v0 `
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]& C, U+ Z! E& a9 s4 G0 A3 O$ j, v
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" P; S+ c* i" t& h
neighbor-total
; G8 _9 C" u+ \" G;;记录该turtle的邻居节点的数目: E; s4 b3 o. B* ~6 \) f' r' z$ H* _
trade-time
/ ?" r' `+ K4 N1 Y;;当前发生交易的turtle的交易时间
0 _5 K+ G+ Q- Z% e" j- uappraise-give
* {7 d: l* Y: l$ F;;当前发生交易时给出的评价( p& R$ ]0 J) N
appraise-receive2 p/ `; G3 N# V+ p* P
;;当前发生交易时收到的评价
) i+ j# |& c# jappraise-time
3 h3 x, K# S. n/ Q;;当前发生交易时的评价时间: j# j- p; M C: N( `5 Q, D
local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 a: J& m5 o3 L$ M: b3 [* G. c
trade-times-total* L/ K5 f) O; q0 g: S F
;;与当前turtle的交易总次数* @3 c" C' E; b1 l* `
trade-money-total% K. i/ L; V, H
;;与当前turtle的交易总金额
0 _3 A0 i* P2 r Z7 |4 O, ~local-reputation/ X, E) ]' s, A! L/ l" Y; _
global-reputation) Y9 _! ^* ^5 [) S
credibility) ~8 M6 c7 s9 H1 K) h
;;评价可信度,每次交易后都需要更新4 v7 }8 W* g8 \
credibility-all4 u$ v4 W8 O* y# O7 o2 d& M
;;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5 _. h; x5 M# B ^8 c7 x$ E
# b) O, x3 i( l8 K
;;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
. s' Q2 M0 k( R5 [* k0 j8 Gcredibility-one
& z2 F; e2 f" q' W8 M0 T8 T;;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( c6 v9 V% |; ]$ Uglobal-proportion
, T; ]8 @9 \* A0 B8 Scustomer
* o3 D# H: D" @) f1 G: t: Mcustomer-no$ r J" C2 P$ d! _6 m9 P
trust-ok
) u3 z. K" |% ^( s9 s" Btrade-record-one-len;;trade-record-one的长度; H* ^* c [+ K7 q; v
]
: o9 U* L, I% q! }+ [0 J. M; I" C! z
;;setup procedure
3 _& m( }8 x7 V+ G) V9 c& j4 I/ \. l( E
to setup
. J6 Q1 P% G7 E& u$ V
' Z, u: P# d# U( zca5 M* ^7 {- `9 j1 ^% u% U
! T) C2 P# Q* o2 u' \initialize-settings: {# u# C& x0 Q* Q, k/ _
$ H; V% W9 c$ F! S& H5 }
crt people [setup-turtles]
* S2 f1 N8 { |% d8 _, k) R9 f9 f2 [$ F
reset-timer; L5 N6 n& ^9 u4 G& Z) D* C2 |, H7 n+ K
; q/ e) [* P: ?0 M* p. gpoll-class* O# Q# g& {& N% T
, C& g6 v0 s- H7 f9 r
setup-plots5 g4 t! {! l; I8 S$ K+ z- P) l
: u1 e6 J- L" D' W. b' ]
do-plots
/ m' Q. ], e' C$ g0 k/ P* j& Tend3 ~+ O) q+ K( k# m9 ]; Y, U O
" G' U# y3 t# n, }% A+ yto initialize-settings
7 e0 u! [0 d+ F' _7 d ^: L4 o# _. z
! L+ N) I+ A* [: @! m. Lset global-reputation-list []
. S% d3 n! \0 x& s. X4 b: b
7 e/ r0 I5 R, K* zset credibility-list n-values people [0.5]
. w: [) q+ p& T3 B, j" J' C0 d2 a8 [: ^2 x
set honest-service 0( r0 ?. s; H3 q9 C! p; b9 [
7 a2 ?6 |$ i+ E4 b6 Wset unhonest-service 04 a9 v" Z/ M( n- S4 a! M* {' L
2 ~6 C' A/ o+ y0 F i
set oscillation 0$ E, y5 X* A7 \- W4 c
, z- d* e" |1 o g$ P& J; ^
set rand-dynamic 0
! u# L, N9 Q+ W5 U' vend
2 Y. J/ c( \) {- `# U! Q- \
- T6 Z) @' u6 Y: lto setup-turtles ) a3 l6 x* ]* o7 Y$ w1 N
set shape "person"7 W7 D2 O& ?0 b' {+ Q. }4 h/ }
setxy random-xcor random-ycor) [8 y" h7 O1 @2 {, ^
set trade-record-one []
6 l- ?$ i# W) z% L1 \2 Q y3 |: s( p% K* ~6 c- u# h
set trade-record-all n-values people [(list (? + 1) 0 0)] . q- T5 [: @* b5 v. c
! E9 K, c/ S. \9 |# Q: g
set trade-record-current []
: J. C1 ~4 Y' A, }4 j1 Zset credibility-receive []# T; ]' W: }+ s3 k, ?5 F
set local-reputation 0.52 `3 H8 z1 C1 H
set neighbor-total 09 O+ Z$ F6 z+ h2 R. O
set trade-times-total 0. J9 z& H* q1 r! V$ g7 V
set trade-money-total 0
% O+ X$ j1 x: N8 d( g. g6 t" L1 Fset customer nobody0 ~5 ?) ^3 g3 l8 v' i* q
set credibility-all n-values people [creat-credibility], o- T( a0 \" o0 Z0 c
set credibility n-values people [-1]
. m$ f9 V4 b" c6 Fget-color. B& ]: ]5 x q+ P, @7 c' h& j
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end
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to-report creat-credibility! j/ P X9 z$ S X, ^6 f
report n-values people [0.5], D8 U) v+ c% D
end
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to setup-plots
& t. p5 p. b1 u5 S7 a9 i. r8 s
6 S. a& f( X0 ^$ F& qset xmax 30
$ ?* m$ K; D& F5 |
) ?" i8 e& U6 U) o5 ]set ymax 1.0& f0 R, \( m* s9 W
6 D W& G+ ], U! K! T; Q" z6 ^clear-all-plots
: S- S: x6 S a2 k' V6 P' ], f
- Y8 _3 I& Z/ V) \3 m* Ysetup-plot14 ^- ]' U+ h8 a$ j
+ }/ D5 D N4 { ]% lsetup-plot2. ^" ^5 q6 w7 V; q) k/ ?. }
2 I! e% p, M! W# X, ^0 t
setup-plot33 _8 T6 U9 u8 C+ {& G
end) c' T5 n" Q& C/ b m% Y7 z
, w' Y, E- Y' u& I) f; ~& D
;;run time procedures
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$ |$ E* f9 x" R1 R% m7 l) Pto go9 v, e% o. ]6 ]# f. i% i; `+ A( x' R
2 g( N' F. y1 [2 `ask turtles [do-business]
! m& n# l- S1 mend
! w. L! w8 _% a
0 C1 X) `8 s. G" b% Cto do-business
; l; p5 X& _% k, G6 h' G/ c% U+ ]$ }9 b* ? I; J+ J
; y) A5 L }0 D2 n |( Zrt random 360
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fd 14 L4 X* B9 Y. c/ d! u7 H4 Y# L1 s% u
$ c) `* G5 y6 W {/ ~4 y3 ], k9 Iifelse(other turtles-here != nobody)[0 w* v2 O0 O" s6 M: l
- Q! o0 [. s% w' W9 J4 F/ B7 U2 v- ], ~set customer one-of other turtles-here# t* |3 f# V8 \- P% E
3 Z3 H$ R+ J- S4 W* Y# p3 _: M;; set [customer] of customer myself7 Y9 ^0 d& }3 }7 {. h
% S3 \5 k3 ~6 W5 \! H7 tset [trade-record-one] of self item (([who] of customer) - 1)
; T; u- u; O% t* `- T# ?8 ][trade-record-all]of self" j8 Q0 [6 b/ H- X7 `; j | P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ ~2 S7 l w. `9 D e* j5 w
* ~/ H3 V* v; eset [trade-record-one] of customer item (([who] of self) - 1). z1 Y2 c3 X; @8 Y8 `( H6 R2 H2 F
[trade-record-all]of customer
5 P3 Q+ h' F+ b; F3 |3 X9 l4 t, o" [) O: L- Z' l- T: C6 l5 F6 N
set [trade-record-one-len] of self length [trade-record-one] of self' p3 K$ i1 }( P; R4 i( n
: y* \! ~4 t. s; A+ z; F. Iset trade-record-current( list (timer) (random money-upper-limit))
1 h" w5 q$ W5 m) }& l/ E% H/ c* C
ask self [do-trust]1 j& H3 [) |$ X/ O
;;先求i对j的信任度
" |( R; Q0 W8 O) V! f9 V! R4 p
: ]7 z) z/ T- v( t/ Jif ([trust-ok] of self)
6 g" O1 i* z# D;;根据i对j的信任度来决定是否与j进行交易[
/ @; u1 |8 _/ L- Xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 G: _/ Q+ Y6 [' B" ]7 }9 Q' Z$ I$ T8 E
" \( D" L# r4 e& Y8 S* x4 W. q( P
[
1 c( w1 M) i' M. R/ A5 R3 v f6 T6 D% r. S" }; B+ E9 g
do-trade
$ z% c# |, Z5 j9 f9 G
9 V9 ]+ t! k% V/ X7 lupdate-credibility-ijl
5 f4 u9 z3 Y2 s! \( u# f
$ c6 v; P7 Z; |2 n; j+ p" Lupdate-credibility-list# ?2 A2 M0 {6 y: C" F
8 [ n7 I1 M' R, C
& z. o& Z G7 O1 k; P% r8 zupdate-global-reputation-list; m3 N' i3 ^) z- ?
/ X$ D0 \; L, m. Y! gpoll-class
2 ]3 b4 G8 r$ J, a+ j* E
. ?8 M2 v# D1 X, w) zget-color K# T" f5 L# G% e# G
! L% ^8 _' I$ `2 X I* G" x]]8 ~, D9 Q) g& n/ w; q2 p
2 z x! Q% d" |+ q' _ ^3 B% a
;;如果所得的信任度满足条件,则进行交易% |5 @0 V) T" R& C0 W9 ~! i
) n1 `% g, ]/ g0 N& }- ][
* B4 ^; q3 m2 S. V/ B5 k" J0 p* Q; O- N, t" b2 ?2 z7 h& Z v" c( R. l; x8 G4 ?
rt random 360# S% r; M' f' n" f
) v' _2 {2 N2 w
fd 1# W3 S( H5 Q( m$ `+ H
/ k- L5 A2 Y5 w+ | q
]
* ]1 m( Y( N$ b1 q( U3 v0 Z+ D/ ~) O& g7 b8 ?5 W
end& d! E5 M z- K1 N. a
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to do-trust
' f: ? U" v0 X5 Z; v9 sset trust-ok False
. o+ b& Z% W* O8 P" q" y
0 z4 _+ }9 _. ]2 G& e" k, h. F0 R- A3 I% q# K( N
let max-trade-times 08 h5 A W0 h9 l, @4 I5 f3 y5 g. J
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- M0 Q- v" b9 B5 u2 g- U
let max-trade-money 09 H% _+ U' H2 h! ^7 M5 F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) B0 r+ I9 _( ]8 v/ i
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. C5 e( C% k6 X. W2 L8 ?9 B# ~# b5 g( l9 @; ^
; O! o# y2 Y4 k( ~; y4 Eget-global-proportion, [7 N+ d* ]$ j5 k
let trust-value
7 p6 F6 Q- t# }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)4 V0 q i Z, w* b5 \
if(trust-value > trade-trust-value)
' E- I6 o- R! h[set trust-ok true]
& _& i! M" v& \' f fend
' k5 u- S" l' f, a4 m- ^! m
' j! w3 n+ G: U9 t: @' Vto get-global-proportion
3 W/ |- m6 Z% zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 K' W( H2 g% b* p- ~4 y* N6 S[set global-proportion 0]
% e& S5 G) Q3 h: }& _3 ~[let i 0
; B+ J2 z0 r" T4 clet sum-money 05 {+ L/ Q9 g4 i7 o) z
while[ i < people]- ~6 S$ {; H" M/ w2 {! Z* ]& G$ u
[3 |& [8 O( A3 V2 Q7 g3 D0 f: [
if( length (item i6 x6 {5 o$ h( A2 x! n" g! V
[trade-record-all] of customer) > 3 )% l& R2 ?) F8 i ]: ]
[# v6 Y/ i$ j3 T6 ^ J! ^
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& G) t) G6 D: v7 {9 l1 d @]* o! o& J+ s( h2 I+ Q! U' A
]2 j( A' F. H( Y& P, a! F7 e
let j 0
# V* Y# X2 a: l6 u L0 e5 Z4 x! Ylet note 0
: _, }; _0 ^6 @2 x6 ]$ h2 Gwhile[ j < people] B( T2 x8 H4 G* m4 c
[
+ q' O2 D2 [8 r0 Vif( length (item i* _4 p: u; }, ^; ]! E! e" _4 A
[trade-record-all] of customer) > 3 )( c' q( P( S8 |# B5 ?; r ]
[
- {' s2 g4 m& o2 J1 `! @ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 e! H) H6 s& h1 E' K[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. f& q! k$ Y* r) |4 Z+ T s: h) g1 a, @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 m+ Z; ^# o+ F8 Z! Z. _
]3 M" U( `# g/ j+ Y2 @( z7 f- B- t
]
7 X0 Q& |% A" I6 e; Q8 m3 H+ Vset global-proportion note
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end$ G0 A4 ^( h- `8 h" T s& B
. S- \4 K+ C m O. Y
to do-trade
6 a# d/ k1 ?: ^: b. y$ Z;;这个过程实际上是给双方作出评价的过程
g) X% Z8 N. ?# ^+ b* Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; G) ^6 I7 }' p; vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 C! M) F% V: jset trade-record-current lput(timer) trade-record-current* P ~0 o' ?/ b% |: V% |% D+ W
;;评价时间4 F5 e0 j! v! m" I! L9 j
ask myself [
# v G" V( q/ G3 Zupdate-local-reputation. @. g& ]/ T& W; }5 r
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 \ y j. d0 L2 T% B1 L]* S8 x7 `' N) s6 x: l6 s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 w) v5 m9 L Z D;;将此次交易的记录加入到trade-record-one中2 m% H5 e" n& p& O1 N1 e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 O+ ~! t! _9 M) `5 W( R% f* p
let note (item 2 trade-record-current )5 c' p0 S+ Q& T
set trade-record-current1 O, A$ \5 h+ A, [
(replace-item 2 trade-record-current (item 3 trade-record-current))
3 D" p$ P) B S; E. \3 J- Gset trade-record-current
$ m- }$ h9 X. \% q& ?(replace-item 3 trade-record-current note)
$ J% ?8 A8 `, ?7 @; \) B3 z: o/ R2 |6 ~# D6 S' q
# `: \2 B3 W5 j& H, d: E4 { w* `& x' a
ask customer [* T* n3 @, C9 V
update-local-reputation8 s& m; Q5 `" m" f
set trade-record-current! c5 k2 i% i# G/ ~/ j1 ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 C: l" D! U; m( W$ Y$ k g0 S]
; ?2 r) t! H7 w7 Q
+ ^ z7 ^2 h8 u, W X/ s9 Q; K' X: R5 Y" P; p! \; @2 Q
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: f7 }8 d' m1 k& V4 `$ [0 ?
& R( P& O7 c, e
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& A8 ]% q- P) t, _. a% n% ~4 P& ` B: G
;;将此次交易的记录加入到customer的trade-record-all中
$ h. }: _& j: u; r3 ^0 f5 ?end
% p# z: H9 F" O
& u2 |6 a9 g; g5 P9 L: f; lto update-local-reputation& W4 ?9 c4 G1 @8 v
set [trade-record-one-len] of myself length [trade-record-one] of myself3 \: ?+ ]% i$ R/ _3 ^
2 W+ y7 b1 r0 A, r- p4 E9 P2 K# z+ I$ F0 d6 F0 R+ g2 _
;;if [trade-record-one-len] of myself > 3 # l! m5 m# g a* E; }4 D
update-neighbor-total3 G9 T U. |" T5 c5 V( X. r
;;更新邻居节点的数目,在此进行( t: s- O/ _ J. g2 e
let i 3% y8 Z& H+ z' P- M- Y+ h$ U
let sum-time 0/ g3 `% S; Q/ t8 b T, \; m1 b
while[i < [trade-record-one-len] of myself]( W) m3 H6 C# T e' \8 p' r( J0 Z
[7 h3 u* A7 G \5 j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 O0 l/ H. Y( Y4 b3 R! ~1 b( g9 @
set i, s" f. t; l) V7 w4 U
( i + 1)
, W8 I! `4 a2 z% ~], c+ r; v$ y3 A: [/ _- c
let j 3
4 z6 P4 K' t( l. t5 Y4 X& blet sum-money 0/ R4 o; X0 W9 T+ v
while[j < [trade-record-one-len] of myself]% ^+ A" ~/ z7 ~
[: V3 i" t. ?# R. Z% A2 L8 d
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)$ |: n1 w5 J0 d4 B9 L/ M! v g
set j& |( S% c; V2 Q
( j + 1)1 w* k$ ^- j9 E* j) B! I
]0 R! ]. B/ ?) _2 Y7 i
let k 39 ?) k8 J4 F# c7 j
let power 0
& n( P! r& ^6 r' V8 [' |7 ^let local 08 C4 j8 N7 v2 o, E( B" |# ]& q# \4 b
while [k <[trade-record-one-len] of myself]
9 D5 L$ H2 S* D- ` w[ K+ U* F. R! t! _' q. R2 v
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) ! o1 g( }4 m$ y9 N+ X7 H2 b) Z
set k (k + 1)/ P/ c4 @% i U N, l c
]
( x1 M3 D7 R' s4 \0 O; X. cset [local-reputation] of myself (local)
* F2 w: G6 O5 m7 F: M. C; Oend
! u% j( ] D1 ` j
& g- w4 o" a( pto update-neighbor-total
3 U/ P0 ]/ [( ~1 y2 C
) L$ R% X; s& p/ ]( Fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* {' ?* M# ^% x+ m( R; e* O! s
7 F% u( @" A9 t6 U4 O' K1 Q% v- q$ ~% H" T0 \! L- `) h
end8 _1 p! B5 E) S8 ?" X$ j6 X
% M0 B: e' ^; L- ~
to update-credibility-ijl 3 m5 V7 N5 ^7 j3 C, }
$ I) Q+ V# {2 \0 O. ^# G h( 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。, T) {1 y! T$ U8 \
let l 0 N( j% c2 Y: } j# T
while[ l < people ]
' d$ B- F$ m c4 v+ |;;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& i4 X( w2 k1 N0 _; G7 f( u
[
6 G3 M3 d$ G: V- O0 p" g4 olet trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 M1 t4 }" A0 K- Z7 }5 S
if (trade-record-one-j-l-len > 3)% F7 b M$ T! I" T0 f
[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
" B+ L+ h! m( Q/ Glet i 3 }$ u4 u2 G5 m8 T% D+ S
let sum-time 05 a. M t3 c3 s2 t! d; A1 ]
while[i < trade-record-one-len]6 m% ^' ]$ t4 V6 _+ L9 e' K
[
/ O9 w" P# H( V6 u5 H7 L9 Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 w+ ?9 A2 p1 Y% H' o2 w* g3 w \set i' l3 K$ K' r( H! K! E
( i + 1)
8 \4 D0 y9 o- a3 m# O: {9 ?]
6 ?) m/ `) k7 O$ J7 S5 plet credibility-i-j-l 0
! ]# G0 V2 I6 _;;i评价(j对jl的评价)1 G8 q5 O( ^+ J/ `3 t3 h( |
let j 33 K% ~, A- j a6 h* r+ h2 z/ l
let k 4
, m- T3 e# D( X3 J! Y) ]0 twhile[j < trade-record-one-len]
, ]; T6 I' D7 Q) P0 `, v3 C[$ K8 u) d0 \; T' a( n2 v# F
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2 C1 y/ h) ~) O5 ?( j/ u8 Z
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)
6 n" `0 t* A$ r: |" Xset j
7 w9 _4 c# c+ b8 a* b" j0 u( j + 1)9 l* c+ `4 w3 z8 K, c! S5 c
]5 T5 o3 C) t/ N& ?8 }
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 ))
l; d+ p4 M1 k b* j) {& F" ?4 K& t# J, K
. i! {3 W- Q- |# N: _. `7 f s8 zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ k) \- [- q' c% v! B4 c;;及时更新i对l的评价质量的评价
/ F& v1 Z0 b# ~. g- ^set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ D2 ^- F; F$ p$ c" l5 y3 d b# S7 b
set l (l + 1)* q8 U: o. g- A. [' h- ^7 V
]# B) F1 l, D- m8 J
end1 Z0 a5 l3 L5 G/ _- W/ v7 z
2 u- e* j( j1 q
to update-credibility-list
y4 ?: i* u+ Q. ?let i 0) |" G. C# G' i5 }6 ^
while[i < people]( i* z3 l6 c! z/ ^8 H% a2 Z6 e% c
[
8 j, M6 Y% i2 Y/ Q( V: V; llet j 0
: ^7 {0 l4 |/ ~& R9 O. R( J" Rlet note 0' B! V. q1 Y0 Z: L' a3 d e! A
let k 0( Q; }1 v: t3 l- Q4 \! [
;;计作出过评价的邻居节点的数目
# W( u" X, Z4 l2 o/ H* @( ywhile[j < people]6 c9 W* n1 u! E; g; r" t
[" z; s2 n, |2 D7 _$ S1 f
if (item j( [credibility] of turtle (i + 1)) != -1)9 }* k2 F |+ b" `
;;判断是否给本turtle的评价质量做出过评价的节点
9 D, l6 [/ `! H0 k* Z5 n: e[set note (note + item j ([credibility]of turtle (i + 1)))+ W+ d/ ^# U; K+ `# [! _+ B! l+ l8 F9 ^
;;*(exp (-(people - 2)))/(people - 2))]1 C5 ]. A2 z" ^
set k (k + 1)
. T3 k2 ~2 ^7 i% ~" i4 B' l]1 Z* P0 N8 |( N
set j (j + 1)6 u5 _( u/ S; v- ~( k6 z+ ^
]
. g; @7 ^! J% s8 [4 n3 `9 hset note (note *(exp (- (1 / k)))/ k)
1 ?) T2 \4 E3 t3 lset credibility-list (replace-item i credibility-list note)4 R( a2 s8 c" ?' f: {! E7 h
set i (i + 1)
+ G7 u0 L5 S/ S# D* G, L]6 R6 R5 }' ~( _
end
j" U% s( @7 `1 Y4 F; a$ o
6 U8 U) x- M' f0 s6 |! Oto update-global-reputation-list
3 \6 |5 I! x+ T4 V8 nlet j 0' g* Q* F" B/ @) b
while[j < people]9 [# ?) M: e& L5 V8 t7 s
[
6 P0 c- t5 G; Olet new 0
! _$ W4 C9 q8 w; g;;暂存新的一个全局声誉! m( V H. j" }/ |: A4 ?0 ^
let i 03 m: n! |- m0 U( P6 q
let sum-money 0
# s+ U+ \% f; f& j# w7 k5 D7 Wlet credibility-money 0
% f3 Y) v1 O; `( Q) v% m! Z/ \while [i < people]
' [: Y) T8 l" X y4 H8 L/ q! h[
4 K: l x2 H& K w" iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- q/ c2 _# i* L2 Z: Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 J8 O$ G: K/ G E) S# w* |' ?3 J
set i (i + 1)
& C! Q0 y: n" D]
( X. p+ P2 d/ k- d' b! nlet k 06 \. {! p: N$ I* @+ k: k! G
let new1 0
/ c) d1 o. A- ^# O& wwhile [k < people]
& y, h2 P5 X) m# D" p[
/ M4 N9 V) C7 m9 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)
4 J( B1 @2 {. y R$ lset k (k + 1), X" _! p( @! Y
]
# O; g3 R% Z9 U5 k2 q9 _7 Fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ) V: A& _- g& T" P
set global-reputation-list (replace-item j global-reputation-list new)
, D2 x7 s8 [5 C9 i; Cset j (j + 1)1 g C+ h+ P( @7 q& B) p
]
0 t* \0 l. R1 n6 Xend0 M. H3 e- @" w! K
5 x6 t; R! X% ~3 P3 }
+ u4 l% f( {! n& I7 u. q) U4 V' a2 n% F4 A S
to get-color7 K: F/ i) c- U3 _9 q
/ X: Q3 p) V' O; ` i. ]- [' \set color blue1 e( ~9 B: h) c @9 O. Q$ T: ?
end
$ A q. b3 v6 h6 V* A% @+ H U8 R6 P4 L; A! f- s! E
to poll-class
6 n; e5 R0 X9 T! uend1 {% E8 b- G5 d& R+ O$ Y
; c: R% d, L* y/ A E8 ]. S9 gto setup-plot1( A1 ?" D8 ~5 C2 I( ^. _( p$ ]
1 c' c! r; q. [! B& q% nset-current-plot "Trends-of-Local-reputation": J( l _ A) \% K! ]
8 k$ a4 V" a! W p2 y, o* s, {3 ^set-plot-x-range 0 xmax
' H+ X, t* j6 F
- j- e0 U8 ?$ E7 B) P9 R) Y8 s' k6 Zset-plot-y-range 0.0 ymax
/ H! P$ d* p: z {) Uend
! ~5 O5 D$ A |; ?( x" G: V1 j/ f6 {5 g1 [
to setup-plot2' b+ Q# {" T/ l
8 ?$ t" K% ~5 c, P& J# x
set-current-plot "Trends-of-global-reputation"
# E0 O/ [6 p' Z: V6 o3 F0 N* y0 D1 |7 v/ p
set-plot-x-range 0 xmax
" e. `4 b1 {5 ~" A h2 E
' x; x# l! d9 L. w% k8 Yset-plot-y-range 0.0 ymax
, W9 |* B# _# ^* d2 J3 mend1 p5 o& B$ k) q* _' ^; F8 o
) \, B& W* [3 S6 s* S
to setup-plot38 u$ l8 U8 @3 `- L ]2 C$ K
) N7 w8 ?+ y1 Y/ t
set-current-plot "Trends-of-credibility"
6 u4 x i. w8 M1 a/ n
9 V4 v0 h8 @7 t6 J2 sset-plot-x-range 0 xmax
$ ?' s) m5 A) E0 O
" q0 P) E- l; w1 J. ~1 U- M) }set-plot-y-range 0.0 ymax
" T* |; G% H6 Y+ S+ a2 L8 z8 Lend
. m5 r0 ~" M0 ~( A
& F1 P; K9 z! Q0 _/ U/ Uto do-plots, Q3 c/ _ Q/ k9 d% ?
set-current-plot "Trends-of-Local-reputation"
, s0 S, q- N: a- x3 w4 yset-current-plot-pen "Honest service"1 G9 s h# F, Z0 B% e9 y& `
end, E4 G/ B l' v8 ~8 y
( M5 Z- f" _' |+ X5 L- P[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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