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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+ g( V4 \. ^. y& G
globals[
# H0 o6 W0 Z$ Q0 v2 T# h bxmax1 |/ Y4 {1 a$ I0 t! c
ymax* ?* K2 G% g+ E7 r6 b: D
global-reputation-list
" h, s+ t' H1 J# _* _5 u
. Z- A2 U0 w6 y S+ Y: a- B# C. Y;;每一个turtle的全局声誉都存在此LIST中+ W" Z- b0 Z& J5 K
credibility-list
" I6 A7 Z8 C9 d& v/ [( x5 g9 p;;每一个turtle的评价可信度
- N7 Y4 r$ y- W) l2 Xhonest-service
7 j8 h2 d3 f% C- [" xunhonest-service% E, D# u$ @7 }' B
oscillation
, ?/ g6 x! t, J Jrand-dynamic# h- C4 Y m: [8 T
]
: v n+ v/ h0 g; ^3 o
. ], U# T @4 S* } V- n/ rturtles-own[; |; l. e% J( t3 B" ~
trade-record-all
6 @: { G! F# X1 l/ {( S+ k1 E4 M;;a list of lists,由trade-record-one组成
H1 ~6 ~$ \. C3 |& y9 S! m% `) ytrade-record-one
% e: Q( U P) e+ };;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 C$ a4 W9 }5 R* A2 ]
' x0 R- Y2 F4 l5 y' [( C;;[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]]
) z0 ^0 _2 X) f4 H0 m. |: strade-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]
$ r# i( c! g) h: i1 [" c+ C* Bcredibility-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$ ~# i% Y1 {6 o. ]* G! }3 h; g
neighbor-total3 {. H9 T. @! O& b* |2 b! \
;;记录该turtle的邻居节点的数目
0 _$ j, K: v' }1 k8 ktrade-time
! K; I3 J: X& F8 i8 j9 r. j;;当前发生交易的turtle的交易时间
" C0 Q4 [' n5 s2 K& R, c5 kappraise-give3 E, W. ~9 g4 C. ^+ N
;;当前发生交易时给出的评价7 c2 x W& M2 m! A4 D* _7 K
appraise-receive9 P) M# \6 N! x3 F
;;当前发生交易时收到的评价2 B& I+ X) R5 q$ |" C5 z, } H* }
appraise-time x3 c$ |: x, m# p
;;当前发生交易时的评价时间
1 ?4 l' [; d! T1 S) u* i- ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉& g/ ?' l; Y8 H7 ^6 {5 c
trade-times-total' n( p0 D) b3 C$ ~6 Q
;;与当前turtle的交易总次数; l5 f" Y0 i- V* k
trade-money-total0 o: M7 e' S! x" e+ m
;;与当前turtle的交易总金额- O0 n+ c/ O% T. M
local-reputation
, {5 A) {2 C+ E5 D& X; A4 iglobal-reputation" ] q& r8 \ U$ ^5 n; L2 N2 C E
credibility" i4 d6 R8 P" z& f( {/ ]# r" _- T
;;评价可信度,每次交易后都需要更新
# x B5 B' a' N7 c5 }, Ocredibility-all7 D' ]& K# m* k- o
;;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 x) o8 K1 S; C! d/ f9 K. e) l4 s8 t
9 _' H, X$ u9 Z% b# y+ N' l
;;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
7 ?7 O( P; a& `/ b4 Rcredibility-one6 o3 J* c, {1 }( F1 w6 ~
;;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
$ p2 R& W, e2 m% g/ Cglobal-proportion! m; A3 S/ n: ^" C0 g
customer
9 n3 ~0 ?1 Z1 g' h* ccustomer-no
: T0 ?; G/ V3 I( a1 n; utrust-ok, X5 j0 d% ?; l; W$ I5 B% e/ L
trade-record-one-len;;trade-record-one的长度8 M5 u) W2 @2 ^ _$ X! h& d
]
) Z% E% `4 _/ W- L( V) G% \" j, ~. U0 K( D# W' j, z3 P, @
;;setup procedure" R' z) c- t# T+ H ?
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to setup! P( I$ P6 W$ j3 e% D: R M
# q+ d* b, K2 Q7 @ca
8 G! p& y. `9 U- L: T |' K3 o) v# B9 l6 ]) q
initialize-settings' p. {8 ]% h& K+ B8 ^4 s
7 s* W3 w. L9 H0 f y
crt people [setup-turtles]
1 ^' X9 z4 R' \! X- ]+ `* w
/ F9 f8 O. _7 Q# t. ?# A Ureset-timer( T; }" o& e5 O5 _
0 l$ [' R' |) W P- ^; q% D
poll-class
; I, b6 ~- G% X7 _4 x, c, @! `6 M/ E' a2 q+ ?3 \% i
setup-plots
. @/ y3 C* V6 h) z- `
9 j" [- y2 U3 f9 `do-plots% U% ?* r6 W& l/ G" J% N
end
8 ~8 m' k- g c
. |0 U* s! E0 \0 W+ Xto initialize-settings
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set global-reputation-list []6 D+ y$ Q; L( y. |, p3 w' E8 h0 R
% o* w9 u2 Y: d% B9 H2 W. Cset credibility-list n-values people [0.5]5 m/ }, K9 s0 {% O* ^
- S. ]( |; S# s: y$ w+ E/ S9 Z4 F
set honest-service 0* {( k9 ~' d/ P/ I. [0 k
( V% ~1 M& z6 R$ D
set unhonest-service 0
6 T- E9 i0 v% r/ t* Y' |% M
, \! o; T0 {- N' K( Bset oscillation 03 w# ]; D$ s% \0 G3 X |+ @
& Z: u9 F$ F1 h" u. z! f8 L vset rand-dynamic 0* k6 i9 R( \4 i0 Y$ y8 t* P
end
- \8 j4 {+ ^3 _* T
5 b+ v& ~3 X# u) z4 `to setup-turtles ( y3 E) E. u U2 L0 ~
set shape "person"
# \$ W: ^6 E5 t9 s/ x& B. f' lsetxy random-xcor random-ycor7 d. ?4 q" n5 n% h) u" }2 V! d
set trade-record-one []! T Q( x& P" s( L/ T4 k7 {
q4 H1 W1 D) Y x$ p6 p3 y* Mset trade-record-all n-values people [(list (? + 1) 0 0)] ' z1 E' T/ U( W2 G9 T
2 z, Z/ U8 Z1 y# X* r
set trade-record-current []
) o+ U+ d% \9 E4 @set credibility-receive []! T! G. s: k8 z9 A" l& s
set local-reputation 0.5
; c2 l* j, z" Q) }! @( X4 Nset neighbor-total 0
5 k& D6 A- n* W9 Zset trade-times-total 0
8 D1 Z2 ] x4 c& t0 J1 e' Hset trade-money-total 0% z* B* q7 x' Z1 d3 s
set customer nobody
$ ~3 E' e# X# fset credibility-all n-values people [creat-credibility]1 h9 x7 W" W! y0 u
set credibility n-values people [-1]# [" d" z) q- N4 [+ h) V. y7 A @
get-color0 w1 ]. I- {+ i! P0 ]5 r
7 S6 f" w, m4 B' ?! }7 y9 q0 Pend. S( @$ U6 R, N I/ l3 E4 B
% \; P; Z8 D; U! p
to-report creat-credibility
: f0 ?' R2 ^/ {report n-values people [0.5]2 q, [$ M" e& ?) q7 t- J3 I
end% N% e; T' e4 ?9 z4 ]' V9 u/ f
! m" ?$ P! S% m9 T# c2 d6 o( w% F! E, ito setup-plots7 K% }1 `. f" C9 f( z
1 l5 n/ D, {$ p: I/ y
set xmax 30
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/ W# K" g L; V# u5 x9 Pset ymax 1.0' n" ~, d- C; e6 \) J1 K& D
. X' g' e( X* l/ G* p; Kclear-all-plots- F! a7 |5 G: M H
) \# h' H+ k+ Z" I* p( ~setup-plot13 b, x% l- w, ^) ]6 o* u E% j
7 W# K' ~7 c* }3 R3 Msetup-plot2
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setup-plot3
6 i6 f5 L( |+ P7 kend1 J7 j+ D" v3 g. g+ a' k0 ?; |
9 W% i6 h/ p l' d;;run time procedures
% t# V3 _* a9 `8 f. L2 A# `/ x
7 x8 ]- I' o+ _% T: Kto go
! R S- Z0 _6 z. {) j- d+ {! C! u" `5 {2 v) ^& m, k
ask turtles [do-business]$ S* s( P; ?- R2 s4 z
end {% H) ~& I6 |0 H. V4 h4 U
- [0 \, h5 B7 ~/ Z7 H- fto do-business 2 x/ S2 M1 T. H+ S3 K% \* E
' t% x% U5 @( X3 V$ ~ J
' ?4 q* e V2 B: p9 d9 Q g grt random 360! M7 g1 o! L. n! ^3 Q1 U
% P) w! {0 ]' U2 g! ^4 L7 jfd 1
9 k& e8 q5 i! ]
( O }) ^+ o2 N5 ~. |& Y) J1 w D3 p, zifelse(other turtles-here != nobody)[9 @$ A6 X/ f0 v q* v1 P8 N
! q2 A9 z" s5 X5 W" Cset customer one-of other turtles-here: D4 K8 c j6 I7 @0 X
4 n0 E7 o4 u& u;; set [customer] of customer myself- n. ^5 J; f7 c: @+ z9 }5 H
, @6 O9 o. [" W6 _8 dset [trade-record-one] of self item (([who] of customer) - 1)
4 z" t! T6 N! K4 i[trade-record-all]of self: R* D! h' f& b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' |- X& E% |; b; `9 r1 p% u
* z+ k# h3 N% P1 I3 _6 }4 ^set [trade-record-one] of customer item (([who] of self) - 1)& P$ a" D* l. L4 B5 C/ ?6 y: s
[trade-record-all]of customer
: |5 [* w9 o: u% R- O# O# c+ H0 T* F* _' ~0 b) N& K( M
set [trade-record-one-len] of self length [trade-record-one] of self. d- ^) Z, Q, C6 C: ~6 C' t* G. L
- V8 p2 C) N7 p$ [7 ?8 n& A4 H
set trade-record-current( list (timer) (random money-upper-limit))
2 l% F( C7 ^: w) q; i' S: o/ p9 _6 y: Y3 ]
ask self [do-trust]/ q( Q: M2 X: a @! G$ ~9 c/ ]; u" _
;;先求i对j的信任度3 k: P5 c9 Y( b- @0 Z1 q
' o0 ]% X8 X. Bif ([trust-ok] of self)* R. q& w1 _! b
;;根据i对j的信任度来决定是否与j进行交易[
; }' S: B: b' {- rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
4 {/ G" }$ s* X. ?
$ x! h$ t" V' h+ C& i[# |9 P( W# e& u4 v* R
+ J; P9 ^9 T; g4 K
do-trade
8 b) ~4 c [% s8 h3 s: n6 s; Z$ {
! x+ G/ y# ^: n/ tupdate-credibility-ijl
: J/ M$ N- _6 \3 @, I- A- z5 u2 z, ?4 C8 o M" a
update-credibility-list3 H4 B; E3 D2 ^# w0 z3 z
* K2 g2 I2 D9 ` p+ @$ ]; z. L
( s6 ~" U2 |/ O% h. F
update-global-reputation-list5 A2 C) A* g% p" b! [9 d% d6 Z
3 m" P8 a0 K+ c3 C! e
poll-class H, Y. A* A4 R) D; T4 p
J4 v" e& f5 s* D9 ?1 `4 A2 {
get-color
# |0 T, p; r. @: B/ ?
6 O' H l# o! L p# y/ U( d: l]]: I& y# o, b7 v0 h
$ @3 {9 {7 k0 e2 v, ?5 r
;;如果所得的信任度满足条件,则进行交易
: ]; u+ p! r/ ?$ n& A; V$ d1 Z( t# N$ v6 _ T5 ?7 }3 y/ R& e E
[
& @$ s! u* [- z2 {2 v! m% O' E C: J% J$ ^
rt random 360
% V9 _7 L% p) b1 J }" a' U/ W- t0 _/ X2 Q
fd 12 ^2 p( s; s# E5 `5 P
. w! F. n& N% i2 l4 Y
]9 f' T/ v9 m/ m; v2 U
% Q1 g1 ^$ K' N8 N3 a+ Dend
0 Y3 _8 C R- H' J$ y- j' }# ^
3 _; c6 m, M1 L( p5 S+ G7 Bto do-trust
/ ~. H; m0 _0 ~$ S3 f; _set trust-ok False
) `: m' O" h3 i8 e1 C
3 k3 E% }* }6 e v; p' y
- b6 m- m4 _' q; a( O! \0 w* |let max-trade-times 0
& |% Y) V, A* O; H' i. Iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& E( ^- ?& H) R. n ~9 H- V
let max-trade-money 05 p6 h9 `6 D2 f1 y1 u( c
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 }3 m( K) S! o; O/ d: q( n4 Llet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% p( E8 a+ P' z" a8 ~4 X' ~
3 Q) e; M5 \7 k8 U. B7 q8 E% k. n$ A/ G( _; K
get-global-proportion/ W+ l( c" x D+ i5 n# F
let trust-value$ D+ X$ C0 ~* x7 S! _
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)' \& a& T( y- }- { l
if(trust-value > trade-trust-value)
8 Y) a+ o8 {, i3 v% V[set trust-ok true]
$ J" f* m8 e8 D q" {0 cend
% A; s; \( E0 Y/ L6 l# @& p5 _4 b) g1 p7 w7 i) x/ V
to get-global-proportion
5 J% s3 w1 R# h* U; gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ d4 `( S3 j3 e e& S& P
[set global-proportion 0]
; Y+ r0 n& U% [[let i 0
7 |' R& W* A d8 j0 |% ? i: ~1 M4 nlet sum-money 0
! _# a( t/ e& o% dwhile[ i < people]
u9 I, d5 F6 ?! C4 n! P[% A4 S% { p) l9 c# m
if( length (item i
+ Z% y6 u: G" M, l0 P$ Z/ H/ P6 ^2 V[trade-record-all] of customer) > 3 )6 n* T1 U3 {: y0 C. @1 S* }7 ~
[8 t- K: c: }# @+ C
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ n9 j% p0 W' j5 @3 ~
]& T7 k' w( y( p6 a6 E0 h
]
, n; k }( ]# Dlet j 0
1 }6 j: Z4 C4 u klet note 0
/ s7 \5 r5 U: k1 _6 \0 _' E5 c% i/ Awhile[ j < people]+ N. I/ V# W, z( D! F" m
[
( K& w4 C* s$ v7 p* xif( length (item i
" H* T" q$ s) r[trade-record-all] of customer) > 3 )
) w! a0 w3 D0 a" {2 c; O[
7 |( T: n+ b- Q; [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 l1 k$ u# [* x/ Z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" N3 l, Y/ I5 i[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 e1 t) A9 [3 _' ]4 I
]
4 ?+ T/ q! {& A1 o. c4 T]! O7 E& I* H: P5 S5 j( |% m
set global-proportion note
4 J3 {5 s+ V7 Z F]4 t( X+ d% P1 j# }8 @! W% L2 k
end
. y$ Y. o5 K) L+ l$ {& t# }$ ?; }' }
to do-trade
8 I# H2 N+ E0 T2 C' p;;这个过程实际上是给双方作出评价的过程
! n- Y; f/ S% i1 vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! L+ ~( i; v( R- y- @1 c- K) I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 A6 W& B+ R _+ Y1 ^set trade-record-current lput(timer) trade-record-current, }$ o U* x5 M6 h; p$ T
;;评价时间
m Q1 P1 o0 w5 b3 j" c" n0 Vask myself [4 ]5 L& ?, d2 E" ~, m- V
update-local-reputation
6 S% ]- h4 w# E, ^set trade-record-current lput([local-reputation] of myself) trade-record-current
* l1 Y: a j* M) E, g) G( ]]
7 a7 a; l; o* v1 X) a# [7 {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% o; ?; B7 F# u" S: [: T. f$ \2 b
;;将此次交易的记录加入到trade-record-one中, c5 C/ Y) Z- v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 n" I/ O1 z2 l. O( q( h/ W
let note (item 2 trade-record-current )/ W" n O, ^6 \3 r/ v( @
set trade-record-current
/ H$ R% ~* h, `- I; G6 B(replace-item 2 trade-record-current (item 3 trade-record-current))5 i+ ` Y) j/ {& C
set trade-record-current7 z$ Y. {" a9 l0 N
(replace-item 3 trade-record-current note)$ Z! E$ }4 w1 h, {% K3 b4 ?
) @0 K# K, E: u: f& u5 g+ Y \; U a" U$ k, O3 W4 ]
ask customer [
6 H# `/ E* M' C3 gupdate-local-reputation- u5 W a( d. l0 O' x1 g
set trade-record-current# T! n l/ p: _ }& O: F1 b
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 e$ N- i% Y7 o$ L$ }
]
" |2 R- S- E5 r
# R/ ]/ u. J1 o+ ]7 o) g* R6 `, z# {" z D3 g# D9 w' y- h; X
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 R: c* Y/ s9 m
0 B1 h! i( Y' D3 o( k
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ q. e4 n" G4 r9 k: J;;将此次交易的记录加入到customer的trade-record-all中9 g! `& e8 [! C6 ? C- h5 Q* T
end0 r1 ], u# D+ I* D
2 e9 d2 R {. S# ?- a" N
to update-local-reputation/ x# q- z( K; K7 U$ b- m/ B
set [trade-record-one-len] of myself length [trade-record-one] of myself
, B% F; G! u m- _1 U
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;;if [trade-record-one-len] of myself > 3 0 l: Z% O7 C7 }! s8 x: N6 A. r% v
update-neighbor-total
( }0 D- u E7 \! {! b ]: R1 m;;更新邻居节点的数目,在此进行
6 n4 p: h" P5 Y1 tlet i 3
! _2 h8 ~ R/ B e) G/ S& Slet sum-time 02 G7 b; q u1 c3 K
while[i < [trade-record-one-len] of myself]
1 R' x! D# g, N9 ?. V9 O7 i$ p6 {/ u( p. A[4 z9 x& m& \# y8 V" v$ `9 ~$ `
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 J" C( `2 K" B8 `% f
set i
- j) D3 H+ s5 G( i + 1)
* y* V* i! X3 ]1 B! i]
* p1 ~- N' [0 k& y: wlet j 3+ ?4 g, x' [) N/ K
let sum-money 0
8 Z' ~2 E9 ~5 {& @5 c Y! Qwhile[j < [trade-record-one-len] of myself]
" ~6 C9 J& }6 q& z, n" V) o @[* S9 @. q3 K2 v# K* q
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)) Z! ]4 i9 k: R* c2 G
set j' y6 p+ ^4 e/ L, V
( j + 1)
9 Y8 g% e- A0 m& \& ?- l( N]8 ~3 S5 G, t! b. x
let k 3
9 k) q2 @- { ~! Z: y% llet power 04 |+ K: [* l1 u+ s2 _. c
let local 01 x* M( ~& u( I+ g
while [k <[trade-record-one-len] of myself]
, ]4 D) T$ [/ k9 R/ I[
: N: z! H. ]9 U0 K* R2 y8 Rset 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)
: Z P) G& L( g- R; F% {set k (k + 1); J4 k% D6 K: m7 t) ~
]# y4 \9 R% H! c; [ u# ]
set [local-reputation] of myself (local): e: ~: Y$ `! |9 w/ z% x" P4 M9 \
end
F$ Z3 S# T8 }7 t7 o4 m' J b& Q4 G6 D" X# H8 S
to update-neighbor-total& m- A$ \. H7 o
6 D, B' B0 W. L, z d' ?4 D
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" O% ~% X7 W% j- l7 L3 I1 t7 X
3 b+ f! V. }3 e$ Y3 w4 g( N4 g
5 ]9 E- \' }% }9 n8 x1 @- p
end
L# c1 h+ g/ u" l$ w% J! p" r
/ l: |, m2 J5 i9 z$ b+ F# G: |to update-credibility-ijl 6 j' L- a$ g& t
- ]3 D& @4 Y5 Y7 ^1 ];;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。
" f/ s9 `1 Q4 `! Ulet l 06 Z( H9 h5 |& B# E
while[ l < people ]
+ U/ k; U- g7 C! m+ ^$ Z;;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
- H G" L8 S! q, O* F2 N* k" ?[
! N7 Y) W$ i; ^4 _ [7 q$ G' ?let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 S7 r% V9 A* pif (trade-record-one-j-l-len > 3)
( U; W8 S! {1 H. m& G) V[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; n1 \5 ~3 P: _- y1 e1 Z- X5 P4 z
let i 3
9 y1 N; [# v7 Q" e' Wlet sum-time 0
* b8 _+ q2 a' ?- ` D* owhile[i < trade-record-one-len]3 V* R6 H# ~* B5 ^
[
! r* t, M% W( {; j& B+ vset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 h* a" [$ I6 c* e3 S0 Q1 M" t
set i8 W. G0 V3 X0 ]- k8 \8 y: T7 O
( i + 1)
+ o( P; L0 l; e5 T* ?+ `" \]
# M; h+ c7 [1 }4 r4 o1 m, [let credibility-i-j-l 0
L' G W0 Y2 ]$ ]9 @;;i评价(j对jl的评价)
7 b( W8 c3 f- e& T, ~let j 3( p" K. I9 W# g, I" F
let k 4
$ p5 M+ H; t6 B( bwhile[j < trade-record-one-len]# ?' R( S9 i; S$ [& S' b
[
) c$ N. }! O3 N8 z3 q/ ]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
) W* n9 Y3 ^' O7 n. {6 ~ Gset 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)
" C, B9 g5 k4 B1 ^! w2 [set j
2 r/ u& l/ ~5 _( j + 1)
# C7 |9 @$ R9 U ~- B]7 y l* O, K* s
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 ))
5 m( A8 i7 }9 e7 A
- u$ C& N/ |1 a1 l$ a8 V+ M0 I+ N3 C4 n1 T
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 U2 y' Z( f- g' Y# R;;及时更新i对l的评价质量的评价 P5 Y; o8 b9 W' A1 u; ?. s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ Y# g' {* O) g" q7 N7 D
set l (l + 1)
% o* m! x' D; j. G/ |]
0 w- h* l8 ~% E" B4 t. oend
6 ]9 @9 k! i. p P x4 I* @; t( i+ L* }9 _$ e9 [2 B7 c
to update-credibility-list5 X) H% \/ F" U+ @' r9 _3 o
let i 09 C: a1 H+ Z2 v) v& R# ?% o
while[i < people]3 J6 z& \( S( {& Z
[
8 P; k% ^% E. B! O7 t4 `let j 03 g5 g! w r; h* R
let note 0* e4 s3 \0 A8 h* x( H- b
let k 0
9 O/ q' o( ]1 \/ j3 C;;计作出过评价的邻居节点的数目 [3 u. u" w" ~, U9 w! m w" q
while[j < people]3 G/ D `8 A/ k( \7 y: ~
[
$ H6 W$ x" ]% l8 rif (item j( [credibility] of turtle (i + 1)) != -1)( ], `; z( ~& O% @- T
;;判断是否给本turtle的评价质量做出过评价的节点
: k4 F/ o l U* u6 g V[set note (note + item j ([credibility]of turtle (i + 1)))
w8 x ?9 K$ K5 h* B1 X4 a# t. V;;*(exp (-(people - 2)))/(people - 2))]
% z- P* T5 H; T vset k (k + 1)+ H- G" X. G5 l- @" o( ] F/ L
]
0 m; }+ I L) e; D" |! cset j (j + 1): e1 \, M* b$ P! ]& W
]9 ~( I# R) y- p# I. r
set note (note *(exp (- (1 / k)))/ k): t- Z" R6 F, m! x2 g- z+ A
set credibility-list (replace-item i credibility-list note)
6 m' i$ h( U3 O) ~" r i7 xset i (i + 1)
; }3 R* U; ~* l6 G5 T6 b]
( \; U( r, u7 @ J5 n8 N; i3 tend9 Q# l9 E7 y5 ^* s0 F, D
8 g) o! g! R) I
to update-global-reputation-list0 m' j& u7 {# l: o' D0 x m+ ~* J" @6 ~- |
let j 0' q# m$ }3 o/ F( f* H
while[j < people]4 ^* q$ C0 e* ]4 b$ y$ D! \
[
$ F- {! j9 N* G4 P& Ylet new 0
) d: p5 A9 \( h$ @! ^& X1 D;;暂存新的一个全局声誉# r/ ~- Z H. S3 C% L9 k9 I
let i 0
{1 c) ^9 _0 e: h9 l9 ^let sum-money 0: L0 h8 C& i) u4 w7 F7 S L
let credibility-money 0+ Y# I$ I4 ~9 t
while [i < people]) M: k/ _* F+ V# N9 G* J# a- b
[" M$ W$ g& E* i4 q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 H$ u5 m- v. T! }7 L) V8 R" Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& ~3 |' E- i: }3 s0 i% gset i (i + 1)
6 E2 J1 J3 [4 |& D) ~/ A) K6 Q]0 D! K! r- I( R! M8 |3 R
let k 0
- p `& ]0 m7 S8 X% c% Nlet new1 0) x5 R- G7 ^5 b
while [k < people]$ }2 ~& L4 t! D7 b; u: P
[
7 }5 D+ b% t. h. t" V t7 G6 w0 nset 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)
3 F' C. _) M. c) [$ [) b, Wset k (k + 1)3 `1 @9 l- N) e
]
( b$ D, m6 y Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( g/ i% f. g# \- Zset global-reputation-list (replace-item j global-reputation-list new); R: ?( e* y8 b, Q& | a4 \$ e
set j (j + 1); b9 k0 i* U0 ?
]! @: v" ^' y! \1 {. t j9 b9 G
end0 ?; g9 t( L. \( n5 ]" Z! H3 c0 R
+ a: Q( q: X/ ] `3 G8 ?( x2 N( Y+ x; Z8 [2 a
4 @ b! ~& F6 T" L _& G) O
to get-color; d! I0 _- N: p
+ P% d1 G5 M: W4 O8 j# x- {
set color blue
+ }) e7 { i! h. V% send
$ k4 d# F9 Q. \2 a/ P9 n, ~* f. `
. o- J2 S. P6 E) G, o) S0 X/ xto poll-class Y' W' ?* m L# P3 G# H
end! J# D1 n& }, r- I" N9 n
2 O# Y$ Y) u" J2 P
to setup-plot1
6 x- A8 j J9 x5 W z/ U @" l" C' Q3 D2 z7 u6 E/ I
set-current-plot "Trends-of-Local-reputation"
( A# ~4 I+ Z* X( F8 `" u7 r/ p
J4 g9 ^; n6 [& S* k" D6 Eset-plot-x-range 0 xmax6 U' _! i2 s" g% H2 {* B" o9 n
$ p; Z6 [/ t9 N+ x, I' [! Hset-plot-y-range 0.0 ymax" V6 t( P: \( Q
end
/ b. e; U( M7 C# ^. V" w: V G$ m8 J3 B8 y
to setup-plot2
3 y' c4 z" }6 C- q0 ?. w) P; ^2 Z ]- W$ [
set-current-plot "Trends-of-global-reputation"
7 H: [: [! u4 \! E+ `% h0 E- T; L. K8 i4 ^
set-plot-x-range 0 xmax* [& X2 n8 d( n% r
3 X# w$ W* v2 k& `4 o/ `set-plot-y-range 0.0 ymax
# E8 n( Y( Y6 }/ `( Wend2 o+ T I( k( R2 T
9 L! t: O1 G8 A$ {$ U. p/ yto setup-plot3
1 ]3 X5 C* @: C: C r6 i; A0 U+ F7 M6 _! L
set-current-plot "Trends-of-credibility"# x4 @1 b" I4 L3 X! I
9 w, A( o/ P( ~7 d: u* uset-plot-x-range 0 xmax; g" [ u. T" U/ D0 J& J4 O
8 v: s, w) t8 W3 V6 o+ @set-plot-y-range 0.0 ymax
w- s, _! [9 Y7 K3 Fend! B1 q; t# M+ r
4 L% F3 @2 k+ O# v% k5 ]
to do-plots
* f3 U6 q2 j5 {8 s' Y* J6 Bset-current-plot "Trends-of-Local-reputation"
. ?8 F' q( m$ |- K3 aset-current-plot-pen "Honest service"
8 W6 L. b# ]" K5 [+ O" |) K. Fend
% c- P- t5 w3 H& p. Y5 Q2 I8 k2 f4 h$ ]. V+ V
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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