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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
7 h5 ~% b* s, Q J" \" }; oglobals[: q! |, ?3 u- f
xmax8 F$ e1 C; y2 ]* p+ V, o) y
ymax
`% I/ \5 |( x+ w8 a+ n) ~+ H T" t* cglobal-reputation-list- L9 K1 M1 \8 n: ^% z2 e
5 y# Z0 q9 r( T. x- M
;;每一个turtle的全局声誉都存在此LIST中5 E) `- m N s: W( R3 ~
credibility-list
8 A$ X( [1 B4 v; O8 `;;每一个turtle的评价可信度
2 `8 H( S9 q8 j: Whonest-service
& L7 M# ]- X" B" R# ^4 C9 Ounhonest-service
$ M! u1 i. N, B3 q. Z* K1 X* Moscillation
" j9 x. Z' O# [rand-dynamic* S1 b, X* j: W' S4 ^
]
! C8 i( m, k, k# ~ j6 G: S* H% I/ y3 B9 s. @% I: a5 h
turtles-own[
' D1 u4 X5 ^) T! ^" m% `trade-record-all0 I9 q0 _) a7 g" u9 F
;;a list of lists,由trade-record-one组成1 S6 m* j7 k$ l8 O( _
trade-record-one
8 r4 l7 @6 B9 ? n, [;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
8 n* \9 v1 O# c+ f$ H/ x# Z0 i% c% y3 [% `$ B3 o# c% n; H
;;[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]]3 h8 G. G+ Q4 r0 l
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]
0 E0 W: r5 _) K1 N& Zcredibility-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
( d$ J! i& k0 G8 dneighbor-total. P" V. h% p6 G* B& V
;;记录该turtle的邻居节点的数目: R+ x) v! F O0 S- y
trade-time0 H2 z: h8 U3 Z4 L+ T `6 q( ~
;;当前发生交易的turtle的交易时间
) e5 M+ W& {# `appraise-give
- @+ `8 p1 |2 p {) j. _, x, t;;当前发生交易时给出的评价
+ |; D4 n; }1 t+ t/ J9 Zappraise-receive
& j; J3 ?- \* v;;当前发生交易时收到的评价
1 c* g n- \# \appraise-time4 O0 o% R! B8 |/ t6 e" `
;;当前发生交易时的评价时间
! a9 J d7 {2 ~6 @- W0 O. e* tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 W& f! B" c$ o; U5 _trade-times-total
% M3 H& p0 K6 j( H9 r( e* {;;与当前turtle的交易总次数% |/ ?/ d" ?; ]" `& h
trade-money-total. c8 k6 a: T" }; O, X' K
;;与当前turtle的交易总金额! P& s9 U; g6 u) D' C( A7 ]
local-reputation3 M" M; e) n' \$ N& |9 Z- w
global-reputation- P* A* O# G6 v9 Z5 H
credibility. b( j0 I( x% i" z
;;评价可信度,每次交易后都需要更新
# Y/ @7 J+ P& P% c0 [; Q% c3 G* kcredibility-all
; @5 ]& c# |6 k& V2 e;;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
1 [! d7 j. e0 C
9 P0 \' C* Z3 A) v;;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0.53 w, D& f6 ~1 t5 S: P3 f1 m) M
credibility-one3 P; S7 c& o% H6 p' [
;;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
- w- \" b& r3 wglobal-proportion
; ] n/ ~, J+ B' \0 h( R$ x6 Ccustomer8 {6 r1 R }% t. B4 j
customer-no9 F' S* X+ V3 `" ~& z, V
trust-ok9 @9 S3 e4 ]& @& o- p& C. `
trade-record-one-len;;trade-record-one的长度 Z/ Q% n* s8 X
]
! k8 j) B! @. e1 j. Z/ W; e- h& |. q& K4 i+ V% q- y
;;setup procedure5 J' T a6 j( y2 ]& c! a2 n
/ o% d) @( V' Q2 Bto setup
. H6 a( E7 Y* s
" O' K* z2 U! U3 g2 e6 r6 A( Jca% e% B1 {- X" w7 v0 c. o. K
) s6 q2 h. s N E; Binitialize-settings
& G" Q0 w3 _2 }7 D2 @
" S+ Q1 r6 ?# K& Vcrt people [setup-turtles]
# P6 ]' [/ G! j7 D6 {9 I& u4 f! @, a! q z" B
reset-timer/ U/ z; J& ]) c$ x z' ]+ d
0 w. f( u7 q; e ?; O, tpoll-class/ A4 @0 u0 ?1 v4 e1 N9 I9 m8 y
7 N. m' g3 k# b Msetup-plots* S. i' H# r4 J6 z% Q3 R4 N
6 n8 }& ]8 L' q9 ^4 Z1 v! l. J ]9 Q
do-plots
3 S0 k- L% x& r% f% @/ Z' bend
( D6 x) V! R8 Z: [* d* ~# h$ h- v# c5 P- n
to initialize-settings+ @- f/ {, N) o3 U. j
" ?- t' p8 r: \4 o3 }. P8 eset global-reputation-list []
4 B# y) f3 K3 p% u. h7 j& Z d4 r, L2 X9 }
set credibility-list n-values people [0.5]
8 X; x4 x0 q6 b5 J3 Z" H+ x! Z. g4 _
/ w, m9 Q5 O& c p5 eset honest-service 0
4 D0 R8 y' E$ y+ C5 e4 X
" x2 m8 U- h/ t. n( t8 gset unhonest-service 0
9 X/ s2 C0 u, h8 y! W `0 z, S. e7 D
set oscillation 0
$ m3 x* [; u" T) y' W! N; t9 ~: _! U! N! r; i- [+ Q0 S
set rand-dynamic 0/ {4 U- g9 W! y Y! p( K. \
end0 z7 F% J+ @5 {3 k' [' B
' d3 I! K9 [; }to setup-turtles : \. D8 J% j+ \
set shape "person"9 d |% {$ _% f R, b ~
setxy random-xcor random-ycor4 e* X2 p, i# b
set trade-record-one []
5 M, W9 B7 B6 _+ s& v
. x5 W. L5 y: i% }: {. Dset trade-record-all n-values people [(list (? + 1) 0 0)] " j0 i6 K- e# f4 H- J
. A- h/ K8 [: A" w2 s+ U
set trade-record-current []' P% {) s) |5 E! V- r2 b7 j
set credibility-receive []9 t$ C: `, h! H- U
set local-reputation 0.5* y& W* }/ H% m. b
set neighbor-total 0" s: a, Y Q" } h- ?
set trade-times-total 07 w6 `# K: F( m5 G8 L. D# ^/ C
set trade-money-total 0; P4 X: `& o t, S* J
set customer nobody
6 X1 b o* k3 G' [set credibility-all n-values people [creat-credibility]4 `: ?' i' S- X( R' t
set credibility n-values people [-1]
! L0 i- c, I$ P9 k+ Z% A6 Sget-color
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. E# T9 t0 W% o8 i$ Hend
7 U& I* U( s( a: X* @6 m" I
9 g- |" F" a( A' G5 }# g3 lto-report creat-credibility
' x' v7 b ?) Ireport n-values people [0.5]
9 B/ F+ N! f' j r: Z; ~' Aend
8 K% A) w5 y2 Q- R5 Z/ a# t9 a! h4 ]5 Z5 Y
to setup-plots$ p: ~+ F, i2 `# X/ [
0 p% l6 G+ r' d" z" R( q6 ~5 l6 Sset xmax 30
- M; `. |5 Q9 d" e
( x/ g+ y) w% nset ymax 1.0
3 G9 |2 d& P/ ?2 @6 u- w' S, l0 a/ J/ J0 w6 k
clear-all-plots* ^4 P F& d7 x A6 k- m. Z5 t
- q& F/ Z6 v) @* h5 N# T6 vsetup-plot1! ]6 h2 M+ Y8 o8 B5 E# g2 k
9 @& T# r9 z3 B& N( n2 D( B
setup-plot2% `; ?& L* ?) R* |6 N
) f9 h" z( h- `% n9 dsetup-plot3
+ M I( ]3 y4 c" ^9 J0 Dend6 D W, Y9 i$ h5 f4 V! c$ h
/ u* T$ @* D% n, ?6 e- d. ^0 D7 p
;;run time procedures' f' t+ v9 q5 |0 _* v4 V) r
) j( H/ I+ Y, [- x: Qto go" ]- B4 t6 w) \' v2 H
1 P9 F$ o) \, x ?4 _ask turtles [do-business]3 L" D$ a) M: c% c& _( t/ \) w
end/ P- ]4 t6 {# {% U
+ g8 }, F2 a& p* V
to do-business v: Y3 r5 I. A3 [
; \" Z0 } x. ^2 G
) h! o' w* b% q4 s! J3 e, q
rt random 360
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% C6 t4 b9 M, h. Ofd 1
% u) E- j3 f2 t0 J7 @, b" v; {
& M% v. Y0 j2 Yifelse(other turtles-here != nobody)[, {0 J2 A. z6 z: W Y8 K
: |# \: ] b: C4 |! e; Q
set customer one-of other turtles-here
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9 z6 R4 u% `+ @6 B;; set [customer] of customer myself
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; a7 P1 }1 ~& k% K. xset [trade-record-one] of self item (([who] of customer) - 1)& c) }0 x8 f3 ]! v ^/ N
[trade-record-all]of self$ X" L' b6 f; k: s3 V' I
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 X: c8 `7 c1 m0 b
* a e$ V- {- C$ C/ m
set [trade-record-one] of customer item (([who] of self) - 1)
. C( m$ v) L! [) E9 q$ V[trade-record-all]of customer p. N5 ^7 v6 s+ Q8 k3 g. O% e# d( s
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set [trade-record-one-len] of self length [trade-record-one] of self( d. V( w! `- r1 v
- p, D+ {% M5 ~; ~% I6 z0 r+ C
set trade-record-current( list (timer) (random money-upper-limit))# w: W k7 m/ \' a- t/ |0 y( u* K
8 k% {7 b/ u( O* y
ask self [do-trust]
% V9 s- g" M# ?, D7 D# G+ o;;先求i对j的信任度# C' {2 ?8 n6 W; W
1 ?, o& w) J$ H( v, l
if ([trust-ok] of self)& o& ?4 x$ R) Z" Q3 {8 K3 |
;;根据i对j的信任度来决定是否与j进行交易[0 p9 V* d& y' p; E3 x
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! [9 t4 }; R6 g4 N
}; q q- G9 ^% ?2 _- L- @4 X
[# k D; S( p* C
2 p8 h* u% J3 n6 O& n( s
do-trade
+ j6 _' x+ e) J7 L: J8 V6 ~! O0 J
( l8 r/ D( x' @' j" I6 }update-credibility-ijl
1 a* \6 @; K- R8 o' u! k
. q9 b) }" P) fupdate-credibility-list
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6 I$ o1 ~& y6 q& p" F% S9 S/ Q$ B1 t" E) g. ]7 w
update-global-reputation-list
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j9 j3 p6 h: g# Y9 Upoll-class
- r8 r" w0 G& x" R+ J; V# k3 L0 r6 I9 B6 ~) U' c) J2 e/ ]
get-color) R0 _% ? ]1 O
0 h, ^" z% y: }5 ~]]
2 o8 y" j- y. e# ~
$ B3 Z/ j) T7 r: x8 l;;如果所得的信任度满足条件,则进行交易
3 R& n s1 {$ j! D* D! r( }7 T* n* p% G7 E1 f6 p
[% P: \! D/ e4 T q
( D: g1 ^6 A* S8 i( K' o( xrt random 360" M, R( z8 X* ^" x( @- k
+ }& q) H/ H% Vfd 1
3 M* F1 {; ^( @! m% G5 @3 Y! w
! J4 [1 G; D1 T* ~% \, l]
4 Z6 e3 L! @# s0 }9 u2 }9 e* G6 E) B7 A5 P
end& O: {3 H# B$ ?7 \& [" x
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to do-trust
1 @# u: v& t( Zset trust-ok False+ U! T: M) V% Y: G w9 A
! ~) _4 U* Z( S
: R: w; I) E! L c: T1 t% Ulet max-trade-times 0+ a, t- N- W7 b. B+ P, F; D. n
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# w5 x h6 I6 M7 \7 d
let max-trade-money 06 Y0 r1 O( X. P& M) v$ @
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 g9 D/ q" {1 ]* b" U+ t: Q+ J6 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))* e1 L$ j6 e7 L5 z' y: w2 e) m; }. ]
. Y- {; r6 q- [ e+ T6 v9 i: [9 i* E9 D! t" T0 x# `
get-global-proportion& a. R/ t% N* r2 N) e$ Z8 ?
let trust-value
5 d$ p2 u3 N2 Alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
" o! _* ~% ?: _6 S! K0 Iif(trust-value > trade-trust-value)
# K4 Y: t1 u5 F$ \ v[set trust-ok true]
7 j5 Z$ q& U' r( I+ |end
5 i9 F. }, \4 G1 U( {' p+ u- O w6 @* q( N) ]3 U3 i
to get-global-proportion E3 H& T. I s" |
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% r( M7 b+ n+ F. Q[set global-proportion 0]5 C C8 g6 i" y* x) S4 O
[let i 0
& B2 ]; s# g5 `let sum-money 0, ?3 ?& d/ M+ l0 M0 n/ t5 H7 ]
while[ i < people]% v4 A1 O2 q$ K9 A/ {& _
[
U. E, B) j% O/ U5 Lif( length (item i
3 d2 X: R0 a5 b( D% I* }' G[trade-record-all] of customer) > 3 ): _0 F, B, _$ z9 I5 X: f3 V# `4 m! h
[" j: ]9 i2 @( b; Y7 A5 b5 S
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 b1 m$ }/ \. s' [9 N8 X" A" P]
; Z6 [' ~0 g6 H2 ?2 w0 G& N]
! S* Y3 I6 e6 I# b3 G Elet j 0
4 H1 J5 a2 p/ |* m3 Blet note 01 J4 l& r& V" R# T! G0 g
while[ j < people]# P2 a. i9 a7 n2 ^2 Z6 T
[
+ b- s# e6 @ h" _- U8 tif( length (item i
2 B& J$ n# m' Z |[trade-record-all] of customer) > 3 )
$ G5 y7 k5 Y* n- j" \3 u& k/ @[
' |) z p8 U6 w: x' w# pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# E a8 b1 S9 B) ]- z8 ~7 F7 V- C: u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 M; ^9 C7 N1 |9 Y( L[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 t( _9 Y4 Q" \]. H, O4 r- O! p' V( \. D" c
]( g; r0 U$ u0 F) I1 Y1 ]
set global-proportion note
6 N, ~: g! T5 | i3 ~0 @]3 D: R# W9 r+ C. G) ^9 X& v. E& `! ^6 z
end
- A T# h6 A8 {7 k" R3 l( f% d2 U: j: D
to do-trade& w' B7 i! C, X
;;这个过程实际上是给双方作出评价的过程
3 H7 v2 z* h& g) j5 { J( dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' i2 J) [+ G; B' ~: e& Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# i% W& x, s/ [* M2 ~
set trade-record-current lput(timer) trade-record-current
* L1 w: x. L. L# }5 l& r5 k; E;;评价时间/ D! K% ]9 o3 O2 k- V( f
ask myself [
& u5 k& d9 F1 R9 }3 f Pupdate-local-reputation
7 B; l& K/ D3 t5 Sset trade-record-current lput([local-reputation] of myself) trade-record-current) S* d8 ^. T! p' R; c/ s
]4 V9 G/ Q4 u5 r4 q j; z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 t8 m/ Q; ?4 ]2 Q;;将此次交易的记录加入到trade-record-one中
+ b& m9 q2 ]6 [2 e' wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 S: H, e! ?, _2 J, ]5 y- I! C# |let note (item 2 trade-record-current )
, s/ g. ?' L" ~% B, T3 N# Q, wset trade-record-current
0 B: Y( N; u5 Y6 M( m |! L7 X(replace-item 2 trade-record-current (item 3 trade-record-current))
/ }6 ?- U# [4 W& S' \$ ]set trade-record-current
& s0 x8 y6 f; w5 i% c(replace-item 3 trade-record-current note)
* @- t i. R9 b& G+ y8 O+ I6 [" a1 t" k8 L6 K7 y9 @
! |5 L# s+ E9 o4 M* o! b; dask customer [/ P4 M9 r0 M( n. x7 U
update-local-reputation
4 C5 e5 i7 f# l5 Iset trade-record-current
- }/ c# E+ D0 ?7 M+ m(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 p/ o* j3 ?3 `! n
], n3 ]0 D; q) v" f. {
8 X% [6 \* t0 m: l! m1 |: K$ m
; K; }) \' q! \; L) P* T2 u
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 X5 T/ I9 A, l* ~0 S
2 x h. F% I% m5 Y* d' Q8 e/ E) kset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# y: @ {: b1 b1 V
;;将此次交易的记录加入到customer的trade-record-all中0 ]; A& E( z& m' W; k8 k* _
end
- U4 N9 x9 u& K
+ }# k; a( z( N) s- i: b! S5 Qto update-local-reputation
3 c& N* E+ j7 [set [trade-record-one-len] of myself length [trade-record-one] of myself
) K" \3 k% ^7 q2 z7 s+ \/ ]( \% b& d4 O7 N
/ @( B6 o9 Z. d0 _;;if [trade-record-one-len] of myself > 3 7 A- H9 P( `% I7 b# g
update-neighbor-total
+ t5 R: ^3 v% i# l4 p;;更新邻居节点的数目,在此进行
6 ]1 ?: l* H$ A# ^/ u+ Alet i 3
, J& _* q1 k- b6 ^, Elet sum-time 0/ r, _& V7 P A9 @, @% g0 [9 t) K
while[i < [trade-record-one-len] of myself]
# k; G# @( l# t7 m% l[
; O0 v4 E! o. w, g, ~ O8 Rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 E, H9 R5 F& ? \# [# p
set i3 p: T3 ]% c& K' @* ?
( i + 1)' F: c5 ?: _' G% o: d }
]
3 s5 N0 `9 u# elet j 32 X" ` \ B0 a; |1 ]7 G
let sum-money 0
5 l7 `* B7 {5 ^( F; z2 l' n/ gwhile[j < [trade-record-one-len] of myself]' L, ?! m6 P* n4 e
[
+ h; U$ ] S! {* ~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)3 u" V' x" f5 s+ o' [/ r( R1 }
set j
# i" i; X2 W( {1 h( j + 1)& r1 T# F1 a1 V
]
+ k- Q/ g+ z d* U3 o& [let k 3
. U# f' J0 u/ \0 Ulet power 0
% @" s% u$ }, s5 wlet local 0# r9 A8 @7 `3 k9 ?: v
while [k <[trade-record-one-len] of myself]
# W8 Z S j0 A' s[* W' @+ @8 D: U. I2 ?
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) $ ~. K* D, R5 Y7 O7 J3 {
set k (k + 1)
6 M: O2 C, W$ H# B# c# v]
/ Y4 g4 C6 z: a/ q2 }set [local-reputation] of myself (local)" Q$ I( {5 U# [/ z& j+ |+ ^
end
# L+ W2 b* Y, |+ s, A$ Q0 f+ v( r- p# E7 Y7 m. C
to update-neighbor-total& s4 X0 n2 O7 ?) e
/ b6 A3 v2 t- A( ?* h: ]if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" i% u! D2 _, ^. d {% F+ B
5 L' W1 f' U0 J; h) d, k
; s4 S$ c9 R" x1 J% J
end/ ~7 A1 i& [& i( P {5 S( e! t
: D" ~1 R' l" Eto update-credibility-ijl
( }/ s( G# z6 M+ P# {
: p7 z* Z4 o( O, @( e: A5 D5 y- T;;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。
$ G( y; o& |. V% B6 g) Olet l 0
; Q0 |4 p/ m% ~; g, h+ {while[ l < people ]" P8 n/ b9 ~* c# U; T9 u
;;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6 l1 ~# Y* g$ p8 ^' `4 n* ?" M
[
" g& w/ z# O: ^. d2 Q8 q @7 jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer). E# A# ?+ F# B6 K
if (trade-record-one-j-l-len > 3)1 O) B$ n7 c5 q3 i
[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
, S* e) D+ _+ ^. ]let i 3# A- b7 }: Q2 A. [4 @
let sum-time 0+ R2 ~& P" }% g/ v8 D
while[i < trade-record-one-len]
9 e0 Z4 @$ \" Y5 [1 M! d3 y8 g[
3 P& W# H; b0 h. yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 ]3 _( t- [9 n! i
set i- K+ X& {& t: G4 o
( i + 1)4 T1 N( H ~- S: \8 y% [' h3 y
]
& @6 R$ M4 D# d% z5 s, e) ]let credibility-i-j-l 0: a9 v0 L/ ~* q# b5 u$ m; {
;;i评价(j对jl的评价)
! R5 H! @7 u: h$ C; _$ S+ olet j 3
6 N% P5 n0 J& {7 }' S( {0 Jlet k 4& c( ?7 }' W, s
while[j < trade-record-one-len]" H1 a; m, Y! A& i# G5 |
[5 \0 b% c" X: C6 x/ K
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8 J0 J3 P! G& ~# Z& u
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)
8 [- q B1 H0 S% S& V Pset j
7 H; j" m, Y! Q4 I; r% L* h8 C( j + 1)* l' A- H7 v# Y' M
]
" \1 G# g/ r5 |* n) R% ]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 R: |8 `% i+ H: ]4 ]
" X/ H( A( O' R \ C) N l2 K# j W
0 l1 H( H6 L1 t& E. e N8 b" Y
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 i8 q* g0 M" @( `7 l; O+ n! U
;;及时更新i对l的评价质量的评价
) C `* L( D2 |7 L; Eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ U! S) X) S+ D1 Iset l (l + 1)" \5 ?3 J4 S8 Y0 g
]
) S0 c; J# o1 Z' L( G4 }7 E$ \end
0 j! ]2 k5 _" }% J. X( [4 @# K s0 y
, [8 \' T: {+ ]1 @3 ` d: A9 pto update-credibility-list d/ q3 ]; _2 `5 C6 j- i
let i 0
# y* V* p+ r; `! |' ewhile[i < people]
$ F7 B# p/ a- Q* d+ M' K2 D[. z4 B9 m7 t- y& n, j& C+ S
let j 02 }; J( c7 Y! t# l
let note 07 F1 H5 z# @" i x5 g% y e, U' `
let k 0& C) y% v& p, F0 s
;;计作出过评价的邻居节点的数目
3 t! M7 Y0 g+ H7 E, e2 j Owhile[j < people]
9 }; S* y0 Y7 D+ E[$ _! K, p( Q6 G- y& r$ L# A: ^
if (item j( [credibility] of turtle (i + 1)) != -1)/ p( K8 H: X3 S7 x
;;判断是否给本turtle的评价质量做出过评价的节点6 u6 u- J; K8 K# C
[set note (note + item j ([credibility]of turtle (i + 1)))
3 z* }+ U/ o& |) u. h/ M( |; @;;*(exp (-(people - 2)))/(people - 2))]% b! W$ d4 H# t* m4 F2 z
set k (k + 1)/ l% C `% T& I% F! A+ [, G2 s
]
( t) b2 F- A8 B. x8 Wset j (j + 1)
+ X. d: e* d/ v4 J" J]
4 E6 E1 f, ^2 [: Oset note (note *(exp (- (1 / k)))/ k)
5 H' u# R V3 M: O9 bset credibility-list (replace-item i credibility-list note)9 V9 n# Z2 S; {: z4 R
set i (i + 1)
8 r: M% o$ y& @5 A/ a0 }]+ ?0 O) _) ~( S1 y) T4 u6 c
end
* c7 F; I9 G2 F4 l5 p0 V0 u, ~+ H
to update-global-reputation-list
2 x/ Z- {2 I% ?7 X t1 _( `let j 0
& A7 [0 H0 L6 H. V fwhile[j < people]
' ]4 i: j* q9 q/ K5 Q[
0 C- N0 f/ U4 C8 S' Z3 q$ hlet new 0- }" m* {& t H+ F
;;暂存新的一个全局声誉
$ n `. t$ e: alet i 08 J( U' V8 F. t( F# w# G5 D+ |
let sum-money 0( E: M0 \; Q' G! u8 c
let credibility-money 0' _2 y! Q! J" o: {/ j
while [i < people]* n) E& e* d0 M5 x! m
[* K' k: c; q& V/ T
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 m8 J6 D8 X- U' O4 c% F. c& D/ Rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; `' |1 W5 r# q0 d3 S2 i5 eset i (i + 1)4 G: l6 i) G/ e4 W6 `
]* L( k, e9 p5 a' R! d
let k 0 z8 Q( R' H8 m
let new1 0
; k5 U2 t1 Z$ F F9 d. uwhile [k < people]
% a& t# f( S9 b; L7 \9 x5 _[
" p7 B8 ?2 h C) H3 ]+ Cset 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)+ N0 t5 x4 h2 M% w0 {; w
set k (k + 1)7 N% `: [" Q1 ~+ j# H8 \0 x T/ H1 c
]- k: u! H1 J/ T1 I9 n
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' U' V7 H( }0 ]6 b% `3 N @) ~9 Aset global-reputation-list (replace-item j global-reputation-list new)
w" t- s* Q+ H* q C8 Cset j (j + 1)) @$ Y& @# U' S/ y0 x5 Y8 Q7 W+ W
]
8 s) B8 V/ Z) D* X( s+ Tend9 ^( {4 ]/ S$ v- T
) u5 p. m4 U4 g+ d, N' O2 @4 P" s* x% ]7 m$ S$ I! Z
# `5 v$ Z0 y! o& ]" m( g
to get-color5 p! J# Q* I7 w# N; h; w) q
5 T: G' [2 T6 r5 }. e" ?set color blue
- T, R! E! J3 G1 m7 Q9 nend
. b6 \' I1 x7 {+ l2 ^
7 d. ^) e% I4 n4 V6 h. q. Yto poll-class
& c/ d& M9 O5 ~ D9 [! p3 J+ Uend
( f) W: W, y$ v' f* K2 y' z7 ~, D# e k2 |# a1 }
to setup-plot10 J8 _, U6 Y' |
2 [0 ^% r- B0 M& ?: C6 cset-current-plot "Trends-of-Local-reputation"
# H) S3 h3 ?5 |* e; l: D9 _0 _; w. T. |- |* ]9 P
set-plot-x-range 0 xmax
O& Q. ?% t( [# P
' A+ q( u4 `4 o- R" ~/ l) uset-plot-y-range 0.0 ymax( `: X+ }* w9 V- ^& u8 y, i9 P
end) M3 f# K: m/ a, x0 }5 D/ e/ n4 D4 j
& k+ M- ^7 P8 p$ s' zto setup-plot24 @; F: U) d* |$ {5 o
, j) f+ N( [) ~, c) H6 c
set-current-plot "Trends-of-global-reputation"! {7 H0 ^' @& K, H6 [! `
8 k. P& k1 F6 x8 G5 y! G8 cset-plot-x-range 0 xmax8 x' D' @( Q: N3 q Y
1 u6 T8 c+ ]' h* G8 v5 A- O; G5 Dset-plot-y-range 0.0 ymax
) e) ^% {! ^8 W9 ?7 S3 nend& l0 n( D6 ^ H: Y/ [
, O8 q% H) \! Y4 ^$ Gto setup-plot38 a+ R U1 k3 g6 |1 z
* m9 r9 d4 f% P1 P2 v5 [, ]3 X
set-current-plot "Trends-of-credibility"
; K1 N: ]" Z2 Z; T0 Z6 N9 G7 y+ b5 o3 K" o
set-plot-x-range 0 xmax
" S4 `. C$ r* J3 |. S9 I x f3 D( o/ e, K3 U
set-plot-y-range 0.0 ymax1 s4 E2 o& ?# N, u0 o+ H' `$ k! h" l9 j+ x
end8 F4 M S* w' K# z* F
3 W% O. r. G' D) W& [' i
to do-plots
" I; P6 |8 M$ X& [- Wset-current-plot "Trends-of-Local-reputation"2 o/ H p+ |' g8 J3 [& l3 f1 b3 q
set-current-plot-pen "Honest service"
& ?5 s4 E/ s8 h2 C8 l- u, Zend
& s* M; o. J' U5 Y/ R0 W. d& U
4 M" t0 I6 z, P7 v; m% r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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