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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! q$ f5 n( T/ x& S& X7 k
globals[- @+ ]! u! [' R& Z
xmax
) E9 w3 i6 _" x% n: Dymax
0 ^( {0 {! a% d4 h8 z7 N* Yglobal-reputation-list
4 a& y: ?: W' @, i' z4 B" G% f: Q+ S( [$ C4 e/ u. d
;;每一个turtle的全局声誉都存在此LIST中
% M& B) l g. ocredibility-list8 `4 p; G2 K4 W( M5 j; I$ j( }/ e. Y
;;每一个turtle的评价可信度# O. C3 V' ~; m
honest-service
6 t6 ~" _7 p0 R0 h" d. ?7 }unhonest-service
( d6 p, j7 m) Woscillation& M. t2 i$ k4 _' e, K
rand-dynamic; K+ ~4 k6 a! t
]8 Y# r/ g- m5 Y
) a$ c, p: I$ r. ]7 y
turtles-own[
U. Q. `; `: J ?& _trade-record-all3 I- U/ M5 A' c* j. b
;;a list of lists,由trade-record-one组成
1 v& y* b7 ]8 [! o5 }, Ktrade-record-one; l7 v; J0 p1 V0 u7 b+ Q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
6 k7 }7 H3 A8 r9 Q" n( l% L' ^" A, L- 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]]
6 b3 w6 O" e( a1 D9 J4 Btrade-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]
3 m$ y$ X6 F9 H1 }! B6 x7 Z' 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
" z- ` F v% X' @5 J1 X( W9 ]5 ?neighbor-total
( h, W; w# n' S( ]+ V3 l( M;;记录该turtle的邻居节点的数目
9 N9 `4 T: J: [% Y6 L0 n V; Ptrade-time
: P: k! D+ {; D;;当前发生交易的turtle的交易时间, k/ h# H) }& N5 I0 J/ R* q* ^
appraise-give5 ^* V8 R, T. ]' J" Q
;;当前发生交易时给出的评价% H" f, G5 s* X2 J& g5 M1 i* k
appraise-receive
) P5 Q% u% |0 W;;当前发生交易时收到的评价; z3 }. U8 S, ~" C5 Z3 }" [8 i( {
appraise-time" a: [3 e' C, W. }
;;当前发生交易时的评价时间
7 Q; L. v0 n$ T: x* u' V' Ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉2 |5 l( `$ J0 _6 t% u2 s1 W L
trade-times-total
+ K! @! Q$ f, c7 ^ R;;与当前turtle的交易总次数
9 t& }& t9 ]6 x1 ptrade-money-total( t) X: F3 |7 C( i0 M; b' N- @9 R, q
;;与当前turtle的交易总金额
8 C9 v- a3 |) {local-reputation4 ^; j8 s3 X# ^! v6 q; p
global-reputation
% q: r% J( Q. \8 S9 ncredibility$ r3 r8 @( `( s1 c5 L6 |3 g' D" @& }
;;评价可信度,每次交易后都需要更新, b) @( y; @$ i9 u
credibility-all- i- C) `) P4 p M6 G s
;;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
7 A7 q' i; e$ p. {) ^9 ~
; i7 I. }" u, z: 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0.5: m6 o6 {6 P# W/ V& r# p
credibility-one3 k% N0 V: N7 }( {+ u L }
;;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; ~+ ~. V; M% T
global-proportion
0 V s# l2 r) y1 Mcustomer
v( y f! M+ j7 Y2 Fcustomer-no2 K3 z$ {7 ~; ~2 |5 F# N. {
trust-ok3 t1 `- A% ?6 I+ C
trade-record-one-len;;trade-record-one的长度8 ~, B3 n* V$ v4 V) K1 c( A9 _
]
2 |0 \5 y' p8 P) v+ F e/ Y% k2 |
: [" q9 Q/ C! ^1 j- J3 p$ B;;setup procedure
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to setup
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1 w! |( ^! O$ U4 p/ }. I' kca
: E$ X; c/ T' S; B! t
7 V3 q% O* G* `. W+ B8 cinitialize-settings" K8 F" ~8 e' o6 Y
8 x) s$ I( L0 `# Dcrt people [setup-turtles]
% t" Q* u* G* {6 V" [, l0 H; B! S' Q+ d) s1 u+ d
reset-timer$ M. ?* T- {! m2 |
( l& u( w- W, t- g& N' L
poll-class# ?4 b: G# W% U# a
; p5 k4 D L5 G0 w; E$ j( p2 X1 g# r
setup-plots. p+ q( S0 X; k6 [8 h. p' j7 ]
# u+ `8 U/ b# c+ S1 A4 N5 k: o
do-plots: H0 h9 S0 ]! M+ E$ V" Q: ]
end
1 x9 H5 S5 M& G) i, W3 F5 ` X3 e& G, C
to initialize-settings" x( v6 D) S3 {( r# v
9 U' H8 {. W+ @4 c5 Gset global-reputation-list []5 ]$ Y$ S. D1 G0 I; H# O4 L
7 `2 v3 L1 R& E( t3 }set credibility-list n-values people [0.5]# [: V: E- t% E: R9 ~3 s4 ]
4 v+ ]4 _; ^- u- s5 m" ?: D
set honest-service 0
/ W* t2 G1 ]/ A5 C, i
7 x; C$ f4 s) l, Wset unhonest-service 0- G& H# Z# b" C/ s7 i
, c$ G; g8 n" O/ g7 b; u3 ^ @! Q
set oscillation 0+ C( _0 {5 T* Y7 U1 w
Q/ p. u" z1 x% `. h( D6 }# ~; b" t
set rand-dynamic 0
9 r7 X; u( l4 t/ x: j* ~1 g0 [* r/ Pend
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to setup-turtles
( p( x9 P- e/ ] M3 J9 }set shape "person"$ I9 I+ v4 H3 N
setxy random-xcor random-ycor6 g' T! H* b9 {- F6 T; N
set trade-record-one []
& V4 D5 K3 R0 K' i& S9 a! |7 N* E: [+ E2 f3 S) z9 Q
set trade-record-all n-values people [(list (? + 1) 0 0)] ! T- R h4 b8 z$ |5 }
6 c( u& k) B: u2 f+ M9 } qset trade-record-current []
* P7 e6 z6 a/ e* bset credibility-receive []
# `8 m) M. r/ q E( Gset local-reputation 0.5
2 p& M: _/ Z4 B1 @7 F7 b7 @set neighbor-total 0. X" P7 U( n* E+ l4 @
set trade-times-total 07 n( |3 G" r9 [9 i1 g
set trade-money-total 0$ Q- S; V* A' s6 u; F% _
set customer nobody; ]( {3 \, {7 M" \ L
set credibility-all n-values people [creat-credibility]( U, V0 i9 f& j
set credibility n-values people [-1]
" \; y- P- `1 F; m) f T( Jget-color
& v) M5 U- N: G; k7 \1 A
$ s# `# d" J9 q6 y( Q& Send
8 @2 j0 \1 @ {7 Q; _/ ?' B
# L Q; t/ j- Q; O1 `+ x: ~to-report creat-credibility
: l6 v' x2 l `' L0 ~' m1 Ereport n-values people [0.5]
/ e9 m- O8 a" A; a3 [4 x# U, [end
6 m8 Z2 B- t7 t9 e
8 }7 B6 L; @9 H% ^/ Fto setup-plots
* [ E5 g5 s% Y1 H
( Y4 Y9 Q8 g" p7 Fset xmax 30
* I3 S" k( F! z7 I! {/ y/ y3 P4 i/ w. {+ Y N- ~1 P% U% E/ |$ Q; |# T
set ymax 1.0
6 B' @- F5 a0 c2 \. @9 U5 [! T: ~! S
clear-all-plots
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setup-plot1
: @ I$ N J& O& s2 Y
8 M I; V" \; a. W7 L4 p0 xsetup-plot24 Y v" Q3 u J4 w( ^" S$ ?9 s2 F
5 C1 l% S6 c8 W* P- O' ?1 n, [setup-plot3 D/ I' U" C% [# s* J
end& z+ S, Z( d3 _+ z( s
$ Q5 s1 v" T& k
;;run time procedures2 A+ q& j0 i8 T* ]
9 F/ n9 r! X. [& N6 O) d' N
to go
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0 v+ G3 `$ s+ g1 Pask turtles [do-business]
. X/ }1 w. } Z3 x7 i$ F9 B' Q. Lend6 D ~5 H9 K6 F+ }1 [7 Y" c6 w
( I& u* L, ]( T$ S+ `. Q
to do-business
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8 g" }5 j1 }% H* |+ B8 X+ T7 c
- O2 Y6 a% L* J4 x$ B' [& X" l! lrt random 360* g) x, R: ]/ _4 d' J1 v6 P
6 x# O+ x# W2 m
fd 1+ P$ c3 R3 d& k5 j* V0 I" f: d
( W. M! J! ? _! r8 k9 l/ a
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here& a% f# l0 `8 c1 s6 Z$ q
& s4 y( p N5 t! A- p- y9 D$ I;; set [customer] of customer myself
5 S6 h1 ]9 z" Z/ W
1 P' Z) D9 q; Kset [trade-record-one] of self item (([who] of customer) - 1)
6 G) s# _% @9 T2 m4 D[trade-record-all]of self7 B8 H2 z1 ~& p, K) h0 a- l
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 w6 A( V0 F8 |2 R2 H" b+ }) D" ]" }$ ~, C$ M- T( v
set [trade-record-one] of customer item (([who] of self) - 1)
5 Q, N) c7 k$ w5 K- v[trade-record-all]of customer6 t6 i) `7 G0 `% |4 `0 I; g+ t/ A1 }
6 p# Y% X$ U X7 O
set [trade-record-one-len] of self length [trade-record-one] of self- n" u6 a0 F; l+ b9 t) i
- ^8 ?3 K0 v4 i7 K, H
set trade-record-current( list (timer) (random money-upper-limit))
3 V, x- w* S8 s) b% X" X: f V; u. i# K) B! I
ask self [do-trust]7 o3 Q3 ^' N% v
;;先求i对j的信任度$ ^, A/ Y; U! K' A3 U1 k
8 R0 g7 j7 U7 Wif ([trust-ok] of self)
: m R% v! f, H$ y r4 r;;根据i对j的信任度来决定是否与j进行交易[
! E/ f3 F5 c3 a. J) L9 Zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! x( ~9 @' m6 v) P
& f: F/ F5 G' Q+ i
[
2 n( a, g) [2 V( ^, F8 ]! O( O( J% |3 P5 S0 Q% j
do-trade
9 w# k2 U3 @1 n- m' a0 p# \2 U
* L3 d* E W0 e) i* w7 q0 Supdate-credibility-ijl
7 k. W: |0 W, f4 o
' Q. X1 K0 K7 R# e' U3 xupdate-credibility-list
9 Q8 A1 C" T$ @' l. ]) M# M! |; x% Y
# e8 |0 |, ~, U0 Dupdate-global-reputation-list
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poll-class- a4 O6 ]" {2 N, J1 U
" x4 M% a' ^5 u# R) ?! M$ _" ?get-color
, L$ V- u3 D! B# c4 v3 L3 [* d5 I: I6 N7 w& v4 G+ D$ M' Z4 Y
]]8 [6 ~$ ?4 Y8 G6 q- `& E5 ~
9 i z; {% H$ J* Z* J9 R;;如果所得的信任度满足条件,则进行交易
" @2 d: w+ R5 |' ~3 j0 ~
0 R* M+ R2 ^1 [, H# m[
' S$ W- K1 H7 ^* p& v1 n }* Y
7 \0 E* s# D" }3 q9 P; {rt random 360! i. Q4 W# z4 p# m, i$ T
+ E8 u8 L* F! C( T1 ?fd 1
0 q( O) f6 u: }$ Q7 ^( X8 O4 _6 U% k& h8 p
]
1 b% D6 A8 M Y8 j$ [" f) R1 p& _. E+ D+ Y* J: e
end
: I. b4 y4 N8 ?6 p5 `3 F
/ X" F5 k! H4 jto do-trust
; U. p0 n( O& c B8 E/ fset trust-ok False
3 s, I2 N! `+ Z5 b9 F1 ~' f& J+ g w/ I$ F& H' F% m1 h3 v0 Y$ u
2 @ D* d% G) n9 \let max-trade-times 0
3 t5 v: h: `- X6 Z1 ]0 d& B, Eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ `3 N% E- I; i- V, clet max-trade-money 0: X; q8 J& U1 x% z1 Q. r) v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ Q- B8 H$ B5 D6 W/ 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))+ t& K/ \7 n7 p- Y/ S/ r+ b
0 u* M8 M! `7 l6 \8 X6 Q
5 b: E2 I3 R* l6 _( ?, ~get-global-proportion. z9 ]9 Y! B; F
let trust-value8 k9 U7 B! n4 o1 H9 [, I
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)! S6 K( U( {: M3 t; J* h6 A
if(trust-value > trade-trust-value)7 ~6 T9 [; w/ x& y
[set trust-ok true]" [" E( C a2 N( |
end- @0 Z V! v' x8 l6 h# z
! ~# H% p' ]3 n1 ?, x8 c3 `to get-global-proportion9 K1 C ^0 x/ S6 e; H6 u `4 m8 M% l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, q$ ^; A6 g7 }+ `% X[set global-proportion 0]9 J" Z5 ~# i* i$ M' c
[let i 08 B& u1 k$ ` j
let sum-money 0
' V# l* Q- U$ L& iwhile[ i < people]; d& t' T$ U# l* u, q2 |
[
: v# N3 o+ I& z) K7 w$ W! ]if( length (item i
% ]# m6 e' J+ q7 r" _3 D& c[trade-record-all] of customer) > 3 )
! [& H5 f4 H+ _, ?5 k. V0 p[* l3 a6 u4 A, z5 x9 }( J- u5 G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 r8 e' C9 c+ d]& Y+ E8 n3 e* v) p# K0 C$ ]
], q( w+ ^2 F! w
let j 0
q1 }' D! T' X3 o- G0 o7 \. X2 Slet note 0
. v1 F% `1 V+ ]( H, I5 [while[ j < people]
2 m( r9 e7 r0 F, r+ Y* n0 n[
; Y# @# |6 q9 U2 I" z R0 D" dif( length (item i
& \' t$ U' n! ?7 Z4 S[trade-record-all] of customer) > 3 )
! _) ^. [5 `- e" \% G& w# b[, B( Y5 e1 E7 j/ n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 _6 @( o- E% s[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 [6 R+ Z9 q- O3 Q% j6 P) t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' C: }6 k: F, L# M' N]
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set global-proportion note0 d! b5 r9 w, x! s: r. z( s' G
]
) q h2 o6 V/ j: A8 K; r2 K4 |/ p7 Jend
* n) O* }' D$ v1 Z9 Q4 s8 D- R3 p2 u7 F& S
to do-trade( f4 x+ V6 K' q: J0 R8 \% P
;;这个过程实际上是给双方作出评价的过程1 G, A9 G8 J( Y! ^* o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! B2 U5 {3 h' X. b/ X1 Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- [6 ?4 F" `* _+ B- O4 D* Kset trade-record-current lput(timer) trade-record-current5 N2 i+ M# H1 v! ~7 ]$ L% x
;;评价时间
" ~! n& b* F0 O; a- ~ask myself [
m' y& E5 W( z, C6 H# g8 K7 Hupdate-local-reputation
i8 V/ R, W7 {' B) C$ J/ |set trade-record-current lput([local-reputation] of myself) trade-record-current
% `! N" A. ~7 q1 g' A: D' E6 F], ^+ E8 X( ]+ K4 |- h) y( E1 k0 o, A
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; k& x' K* [% s& K7 p# Z- o4 I! s
;;将此次交易的记录加入到trade-record-one中* @/ X* f! @2 P7 x; h* ~
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 a8 Q' I5 t( }; N
let note (item 2 trade-record-current )( F7 _: B4 c7 k- F \9 N
set trade-record-current
) s! Y: ]0 i3 `4 `6 J(replace-item 2 trade-record-current (item 3 trade-record-current))' v/ B* L; z+ w$ o7 `- Q. N
set trade-record-current
9 a8 T: d# H, U; q(replace-item 3 trade-record-current note): ~3 k, ]* A1 E0 s
- v- o+ v$ E1 q1 Z8 U3 R0 e* ?( H5 P/ d [7 {4 ^, H
ask customer [
4 w7 M" B, D, [4 G# Nupdate-local-reputation7 ]% H% s5 ^2 s* S
set trade-record-current
& _ g5 F& n h( _5 ^: x) E6 E(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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( u* G- a! `& L2 v9 |; A: w
* A" N/ K0 H( i, W' M9 o& w \6 K; _3 w" ~7 O9 B' J+ k T* [
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' i y( ?* Y- ~8 \% ~$ T. H6 x; o9 H$ {5 a
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# p3 T" A/ X7 Q3 B;;将此次交易的记录加入到customer的trade-record-all中
2 n' w& k7 ^3 C8 P' ~end& `" m3 Q) [' h' s0 q7 ~1 x4 C
/ J+ D" N- v& h* M. x
to update-local-reputation0 y$ H6 D9 K9 M" R" X4 B( I
set [trade-record-one-len] of myself length [trade-record-one] of myself
' `) j2 O1 u+ k* Q7 f- F2 e6 i, W
+ E7 p1 {, i: n4 O
;;if [trade-record-one-len] of myself > 3
* b3 b' M+ D! T5 Z9 G: V, Eupdate-neighbor-total
* h6 T+ @4 m0 ~' n( m9 y" l;;更新邻居节点的数目,在此进行# w# e8 K; g" o) K& ]
let i 3* F4 L' _. s4 t. {1 I: v
let sum-time 0! y1 Y" d- j1 }, {8 o& X7 `/ c
while[i < [trade-record-one-len] of myself]
9 Z0 O" ~2 ^ U5 X7 W4 `[- o* ]( W- }7 }% V4 G, m
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 v* I2 I1 L3 n# `& X7 Fset i9 G. V) H# e" K1 q g
( i + 1)
1 l: N5 w- V% D2 \% k( b+ r]; z5 X/ Z: K1 y* b m
let j 3
* y$ l. m3 z# M+ J" U) m2 }- D7 A1 U/ vlet sum-money 0# L" ^1 }. K* c- R# L/ [
while[j < [trade-record-one-len] of myself]1 |7 q2 O" e, L; J8 `# e
[' [& Z: t; E8 `; v
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)8 m0 `1 d% J! Q3 Y) ?: L
set j% o s# ` u# t4 o) L: m' A$ g
( j + 1)9 |4 a( L1 c& F j3 u, y
]: G9 F+ E* u% O# a
let k 3
8 i9 `: v4 y4 glet power 0
' _# b( \/ l0 x' xlet local 08 f* N; o4 Q( Q& d
while [k <[trade-record-one-len] of myself]4 J+ n4 L! c) R# O6 m' x
[
6 Q7 m% i C5 p- W4 B: [9 }/ k/ V C. Lset 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)
9 w3 U/ b" F+ m: cset k (k + 1)) R( ]4 r* Q u2 M2 T7 w, y& t4 }
]
% `3 V3 Y* T7 ]: E/ Kset [local-reputation] of myself (local), I) A3 l8 I* S8 U
end
) L- i3 J8 D0 z7 w5 ^* O1 h; M
4 L$ a3 O5 W8 K4 i! t5 kto update-neighbor-total
, P5 j2 |% w4 k' k. V; F7 T$ F$ X$ N$ R) J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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* s* Y4 S- p8 _) t
end0 `3 T2 a7 o; ~9 v; m5 V# l$ ~" X
7 j% w1 R! `5 B& B( M' [9 ~! b
to update-credibility-ijl . ]1 ^1 V0 Y e9 G7 g# Y+ W" l& q
( d' C( G* y8 u4 R, d% v/ Y;;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。
- \' ~9 L2 \# l2 R' _" G V( W, ~let l 0
8 }* c% D3 k6 O: j1 }while[ l < people ]
( S# a* @- o6 N! 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
4 [9 o* X; F. X0 x& m[% ~6 p3 ?6 U0 F4 q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)! D- u9 D/ a3 a4 s8 s/ a2 @+ m
if (trade-record-one-j-l-len > 3)
8 Z. n' }: n8 b1 z) t[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
! t- t7 S% M' j0 ^- olet i 3. V+ a& e% b; W* Z5 g8 [
let sum-time 00 W3 g9 o( Y) g1 A! @" V. K
while[i < trade-record-one-len]; K1 ]+ J- h# W, w0 |; ]
[
& t/ z% s: V* Pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* x, r8 l% H0 Y5 ]1 P, _9 V7 \- V
set i% \: k5 D3 s. m9 W) X. e
( i + 1)
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let credibility-i-j-l 0" _5 h' R2 S9 t' f: h+ r$ f2 d6 O( m
;;i评价(j对jl的评价)
j% ?/ z- M/ Slet j 3
2 U, L6 Z$ {( U/ ~# Dlet k 4$ l9 X9 d& z" E; P8 A1 P/ @& {' o
while[j < trade-record-one-len]& }" J& M+ [6 U- P# d+ h
[/ |3 N }! G$ A
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; @% j$ i5 N/ O V/ V
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 \9 z3 }1 k. y& X$ a3 M$ i* {4 R$ b
set j; @# K: v2 b2 Y4 z/ s- t: I
( j + 1)
4 U' o3 ?8 p3 l% K2 K q- Q]! @2 D, R2 c# Q# V' @/ U# w
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 ))! I' V e" o$ P/ A
! j& m- b; Y6 E; {" I5 L l5 I
7 Q* U. K8 n- J# `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 n5 @6 u2 j. C- [4 O+ g0 [
;;及时更新i对l的评价质量的评价
. n. u9 A2 ?4 ^% L9 b& yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# R, L8 y4 K* {' D
set l (l + 1)8 J' m# g+ t# d0 B
]" P$ D! M% P2 A+ U+ U
end+ U7 c% _& `: I: D
5 V' l! I J! s" S7 Ito update-credibility-list
& w/ Y3 A9 E9 c+ i& G, }8 alet i 0
5 e$ I8 o9 ]$ Y9 ^" {while[i < people]8 M! s* g; a: {( ]
[% j6 d2 c0 Q. r; K/ ]" W
let j 0* l6 O( S5 |) n
let note 0( o8 V( T" b3 V3 w& x+ t
let k 0( E; X7 a- [' t/ U: o. e, _/ [7 r0 w3 J
;;计作出过评价的邻居节点的数目
# E6 h$ ?" y# A, d, [+ F7 Uwhile[j < people]
j" H$ |! b) [ n9 m[. p8 d) l7 D3 }4 c* i9 K
if (item j( [credibility] of turtle (i + 1)) != -1)
( g5 }" B/ j& C M5 W f# f6 ]2 R;;判断是否给本turtle的评价质量做出过评价的节点
1 J" W6 \- x7 S/ w[set note (note + item j ([credibility]of turtle (i + 1)))/ n W. c5 D' ]" l- @) G; H" O& @
;;*(exp (-(people - 2)))/(people - 2))]2 y& U. l, W5 o% E
set k (k + 1)+ _% A( c, X4 a/ o: W( p9 B0 a
]! n: V# [2 ^1 A0 m
set j (j + 1)
1 T6 L2 V5 j/ _9 J$ i. |]" ~8 N0 c: J$ L9 c& `( d, A. q( ^+ L% l6 @
set note (note *(exp (- (1 / k)))/ k)
3 p: ]3 ^- S0 \5 R, [0 M6 Jset credibility-list (replace-item i credibility-list note)9 t: G/ p! i# K' ?- j
set i (i + 1)
# b' l% p% s. I' j]: X' Q# m' y" Z( e+ z
end1 s6 z8 c5 q" @) X7 _
. K% P# Q2 ~$ \& bto update-global-reputation-list0 D0 z' @- X% H/ n& q* P4 O5 s7 D
let j 0
. }# K; _4 y7 Dwhile[j < people]
; e8 H- h/ v) }6 d" V2 _[
. p0 H! R/ \3 V8 d7 B! Plet new 0
) V3 }8 T( _" |- R;;暂存新的一个全局声誉& Z8 ^* L, z: ?4 {2 d
let i 0
: O) I, E- a I# w3 k2 M* g2 h# [, nlet sum-money 0
) A! G, M; Y; D- Z9 ?+ Ilet credibility-money 0
/ s) d5 o4 R8 M% j. Zwhile [i < people]# Q$ i2 Z Y" t% v) U m
[& s( O P8 ^1 P& L# y& o
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 g7 [3 Z& H( _5 a( ^' Y* K
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); T+ |) |" l+ g+ Q+ g% V& Z
set i (i + 1)
0 T# j% t$ t3 w% O]
' J' o7 U) x7 m# blet k 0
# O" n5 r h! c5 s! W' ]" Klet new1 00 @- T3 r2 I! K1 ^3 p' o$ g3 L
while [k < people]' r0 r; }' D# G1 n
[ R( \+ t1 `0 w u
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)5 Z9 K) j# p% X# Y, B- A+ g! G9 w
set k (k + 1)
; c$ n- U1 P, T3 e( M5 B]
; P3 u/ u: y6 Cset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" N+ j6 }# a. ~set global-reputation-list (replace-item j global-reputation-list new)
/ v" n! R1 M: l5 ?4 Lset j (j + 1)0 j% h6 {! Y: C t9 |" X
]
, w3 b/ T- ]' p& B/ Dend6 e+ y- O8 {/ u9 Z9 J- n
7 ?* }3 t+ |& Q; l+ G3 k
/ }$ q; A( D. ?
8 g( O/ O6 ^ v0 B; q% F% pto get-color
- ?$ x( d1 Y7 O0 b4 m5 q8 x" A" D: x* {
set color blue9 R% I) E; j' z
end
$ s9 e8 b1 i4 P# }9 u3 s4 X" Z7 D& _& P
to poll-class# v% w+ b( n, c C" u- @
end3 I9 C% N1 ]; z0 N7 b2 l# } }
, [- u% T" n+ |
to setup-plot1. L0 J; \$ R! Y. s/ V) G
|9 l3 L8 h9 E8 N O; @* ` }3 qset-current-plot "Trends-of-Local-reputation"
8 U7 n3 e. v/ R" \" n; s' d4 x4 d9 w8 E. l4 Y1 s- t
set-plot-x-range 0 xmax
3 E! ]& Z% ^; @0 z; }; f$ s' ?, h- R
+ K. q* l2 @, ?6 N9 |set-plot-y-range 0.0 ymax
. ?; k( N/ f: a) w3 i4 ^ e Nend# {$ H$ n8 U; I: G* x
7 J8 V: ~( D: l3 {3 s4 e/ l1 C
to setup-plot2
" N7 x' V2 ~4 z1 }5 e9 z7 N! H
- M, `6 t7 L& Y8 Z5 u( qset-current-plot "Trends-of-global-reputation"5 t3 R2 H8 G7 v
$ L2 I0 h- {' i4 X
set-plot-x-range 0 xmax9 G7 g% W+ X: [
7 y+ _1 V+ Y# d. Bset-plot-y-range 0.0 ymax$ S5 ^4 O: g0 T+ H2 b) U* R# L
end
2 O9 i2 }6 y7 z1 h0 `) D
1 m: e6 R6 x5 V: M$ i; L" x5 b3 a" wto setup-plot32 D' w. U e9 c# K
2 i, b, c9 K! V8 v5 D/ n" ~! o9 Y! _
set-current-plot "Trends-of-credibility"5 w) Q4 _2 `. a5 b m
6 s9 q9 [+ a* `6 ], N" Y: y' g6 tset-plot-x-range 0 xmax
: ]* A, Q- o" w; @, w: T5 S) k/ f7 r/ T; e+ ^
set-plot-y-range 0.0 ymax& i: H! n/ }4 W+ A" d) m* d* b
end
q3 W b" K/ ^0 b& {' a9 h: k, i. a: Q5 j$ M" R
to do-plots
* J! G, v& H3 x* u/ ]5 `; g; oset-current-plot "Trends-of-Local-reputation"6 X* V* Y/ v/ R) v
set-current-plot-pen "Honest service"
& o/ a! I6 g: Zend
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! M. S8 m2 w1 P( g2 }3 x/ `[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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