|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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; Q1 D* X/ }% M, f$ g6 Q
globals[
5 Z/ C5 C, G1 p; O& Fxmax
/ l3 R% F) p& i' p5 symax3 {& r( {# |# x
global-reputation-list p/ c$ I; W# Q' W0 L0 i. u$ Z
9 T' W& P- n `& ?$ P
;;每一个turtle的全局声誉都存在此LIST中, G7 O) r/ k: Z7 Q
credibility-list
$ t+ Q* P, k' g n* }4 [( m2 \;;每一个turtle的评价可信度: k8 e( p M z2 C, F
honest-service
; F, Q) m7 k* |7 qunhonest-service" s2 O5 e$ K+ p$ t: z
oscillation' D. Y2 M- w+ a1 {5 e* P
rand-dynamic8 L. W9 e1 M: w
] m0 S$ H& c' a3 @" m4 H
6 p0 j4 |# @3 G+ K3 o7 L
turtles-own[
3 T; r8 c) u+ y- K' B# M* Vtrade-record-all
% _1 [; Y7 F4 ]" Q5 H& \6 e. R5 V( j;;a list of lists,由trade-record-one组成
5 r$ u+ x$ @& J6 W- |trade-record-one8 u: }) A, k& E1 Q6 ?/ c
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 g: A' U8 X2 c, J
: {# m8 k$ y2 R! A;;[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]]
' Q, z, G4 O4 R- ntrade-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]
1 g5 K Q6 r" R- i& u4 Tcredibility-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
& t6 C* ^! g- H3 D* Gneighbor-total E5 x& M# a3 R7 P! R
;;记录该turtle的邻居节点的数目) \ [2 O0 D$ o( A
trade-time* H1 P1 o( M. G0 i
;;当前发生交易的turtle的交易时间' a' T+ @2 T6 L0 u2 d0 H5 Z
appraise-give9 o7 S4 Q! k+ R1 v1 y5 w
;;当前发生交易时给出的评价
' T1 ]! M" {0 U' G- Zappraise-receive7 x0 I6 E- Q0 A7 H/ H" D
;;当前发生交易时收到的评价
: ?# }0 J& R8 o$ E, R; j, Happraise-time
6 V, g# R; G( M0 R" y) G;;当前发生交易时的评价时间, M% t; h, o3 z/ H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉# Y3 s n9 x# ]/ |/ W
trade-times-total
$ ?5 Y. d& S# H: o' ^;;与当前turtle的交易总次数& y8 A. a" [& b4 w' B+ O
trade-money-total
9 y5 U! T6 i/ F! I: Z3 h* H;;与当前turtle的交易总金额
0 i+ c+ t3 j% klocal-reputation/ r7 q2 u) A. Q( j
global-reputation
- H9 b* w9 \1 {- s: D% Tcredibility
6 S" }6 c! T9 K2 x: \;;评价可信度,每次交易后都需要更新, d4 Z+ V9 B1 L
credibility-all
. A' ^& O9 x O2 { y" p4 W;;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
/ j( F0 R3 B" ^+ w% x3 g6 g( u
5 k5 F% y$ A% w; F8 {- M;;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
0 `8 \! K+ h8 S. S! r2 qcredibility-one
1 T$ ]5 u b& O8 v;;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
L7 X# i2 ~5 o+ g# D {global-proportion
3 s" a6 P% _- N L+ p. G7 mcustomer* ?! e" Z) R5 ]: E
customer-no
1 r$ _ S) l; L8 y+ }9 [+ htrust-ok
3 B v' r% o4 }8 ?trade-record-one-len;;trade-record-one的长度
6 V; v, ^- I4 m ]]
+ Z h; s6 M6 ?4 n3 W6 Z7 L
z ^- a e2 W- Y" z% B" c;;setup procedure& n4 f6 k2 x4 ? j" [8 U* a2 c
9 i& s1 ^7 K; W: T
to setup
+ t" u, u: P1 s2 _- ]( i* v8 ]7 \4 E% Q7 e& k& \0 E
ca
6 U- R8 ], l& O1 z
0 C* F* ~% z! Pinitialize-settings, a: X% d* [& A
9 s& C* P: i5 \: |( @crt people [setup-turtles]
1 C/ M. [4 E) X' D, `; r& a. z A5 W! p _6 l3 d* h0 l2 b- K
reset-timer7 f% ?5 C" _) l3 P
5 G3 B W3 z# E0 Y7 M: ~
poll-class
( u ~" p, v- K$ ~ M' h
7 E& J# c, B! p6 j, B Nsetup-plots
2 i3 k* J9 X* b6 C0 i1 C) U6 y6 s& Z/ C5 m% M1 ~4 \* B
do-plots2 k* b% I/ j- J. x, ^( B+ Y# ] S
end
& K n/ f+ w6 Y/ B" g' m, n0 J7 W# [1 N2 n; N% r% X6 ^
to initialize-settings" B- e6 J7 a0 ]6 v! l
- p; d. m! @* \) B; A- H# Hset global-reputation-list [] \( c0 @) W- u" W
. g# F }5 `. i+ v: I( ?set credibility-list n-values people [0.5]
7 r: } j2 |- Q* L* \2 [- M. m5 Q( ^7 r
set honest-service 0% f# r4 R' L) V+ i$ `6 u3 \! W
5 t3 z0 P! W( Y' j0 a6 F6 Gset unhonest-service 0
1 u) e. X D1 q6 O
! ?- P* R. L4 y. Dset oscillation 0
1 B0 F3 A$ h$ Q* @; k6 b( l- w
/ I( \( `5 ^" \) A& y- g* E# D1 i. vset rand-dynamic 0
5 m/ x( N( x# d6 {3 F P# hend( z: P( [. c5 F8 F0 s. }
( M2 G- Q' O; E7 y S2 jto setup-turtles
$ f+ [& ^/ ]! {5 i$ Aset shape "person"6 e. x$ N! ^5 Q, ^5 @. u/ [" U3 {
setxy random-xcor random-ycor
- p( ]# X7 J* q z% G1 K4 uset trade-record-one []/ L! O a, s0 {5 _0 ?
3 V$ ~/ \) W; l$ vset trade-record-all n-values people [(list (? + 1) 0 0)]
- d; i m I. H* s: A6 I3 c" Z" ~( ^
set trade-record-current [] E1 P* Z0 _. S' i
set credibility-receive []& f3 e6 m0 J7 v' N: m
set local-reputation 0.52 ~# X4 o5 ]* A) ?0 I& X
set neighbor-total 02 \" q6 _- N" m" S/ y8 h$ |
set trade-times-total 0. `1 ?4 [: \0 S Y, E
set trade-money-total 0
* k1 H! t3 E. s' b, K9 W/ Yset customer nobody! ^' r( R8 M- |
set credibility-all n-values people [creat-credibility]
# M3 e- G1 X, d) S1 D$ b$ R# _% rset credibility n-values people [-1]1 k1 w1 R# x: c# ~! z
get-color1 o9 |* J& _; I9 B+ @3 i, C
0 l3 ~. Q+ V# z* c. ~+ h! t
end
! {& ~. O* X! d' g S& K" p! }1 J7 s# E' N- z3 Y d! ^2 S/ s
to-report creat-credibility
1 O- G* e' [8 p8 d- @( G$ preport n-values people [0.5]2 a, B( G, H ?9 W8 Z- V9 U
end y+ P! ?5 ^1 w
' U; ^* M1 m5 lto setup-plots
a U7 ^/ X1 m9 \1 k9 K+ P' e5 a8 H+ E5 f; S( G
set xmax 30
* @. m6 k$ R9 q! \4 ^" z% S
' r' |; l: F7 k! v( U( q5 Vset ymax 1.0
" e: Z9 t) @* M* t* E3 ?. k7 J! y6 i
clear-all-plots: b& E5 Z4 S5 |3 f. V
0 ]) K9 r- u. P4 ]. vsetup-plot1
0 ~, |; [" p1 X
+ c6 Y2 i( {) \$ {6 E" j4 ^+ isetup-plot2
2 \+ y" q! @- C% u. e4 a6 h$ j' K0 [$ s/ |3 t3 |0 ]
setup-plot3! T1 A! J# ?. |4 X# n& Y3 H4 U
end
* m( `( X2 P* ~% A# ?* Q0 x. w! H$ m0 M* C/ B& f/ [2 D7 {
;;run time procedures2 I6 B. h! C" B# ?5 W
: N6 R' t5 t% M! k. C
to go) v+ V5 m4 S! v, I
0 M( ^) J+ c7 y' P. r/ D' ]/ T
ask turtles [do-business]; j- \! C. |) i \! f
end
: Q$ y8 [, n0 L) A; ?. |
- B" L% S" q* N( o f7 s( p6 Zto do-business
! Y8 o) N- I! q, S' w
) G; \& { W) [2 {/ ^( l$ T! z: v( @0 ~* x: H# s- q5 R& W% }
rt random 360
4 B( P N: ^' B8 h3 s* t' U
t/ ^' x9 n z5 _' vfd 1
s9 B6 i9 X/ R8 O) J3 w) f# r; R8 C9 V+ W1 Z3 @* Q0 r
ifelse(other turtles-here != nobody)[+ A& e" X$ q, @$ \: m i
6 A) h8 c- {/ b7 k/ P
set customer one-of other turtles-here
9 X5 w' G6 Q6 ?; ]/ Y$ o. S, u7 L
;; set [customer] of customer myself8 |9 q2 m f9 v M
* j2 A! l) V7 Y- V2 Y# m0 S1 [+ W
set [trade-record-one] of self item (([who] of customer) - 1)$ B& }+ Q8 g. _' t: t: N- r1 Q+ K
[trade-record-all]of self
0 i3 i; G3 E5 G% Y8 K7 ^2 H1 f;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 T, O9 d4 s7 M$ X+ u1 A2 H- l4 Z0 u U. O1 @* H5 N
set [trade-record-one] of customer item (([who] of self) - 1)" i: @5 n, }# ]' E- i2 }% M6 {
[trade-record-all]of customer
7 A& p0 I- _: p( u9 `
& e6 o Z: y( Z0 j0 H5 l$ L. Q1 nset [trade-record-one-len] of self length [trade-record-one] of self( U' L) d) x4 x) Y, \+ l& {2 | t6 m
* Q0 k% q3 V" {6 {8 J# t3 sset trade-record-current( list (timer) (random money-upper-limit))& B: n" n4 s, d
9 g9 ?, c# n. I' y# L$ f+ gask self [do-trust]
2 _/ L a! G4 X3 P; I;;先求i对j的信任度4 D3 P0 D! [; `4 X# U+ } e ~& X: P
7 P; W% d: b( U: Tif ([trust-ok] of self), c6 z1 ~, G% d0 @( w
;;根据i对j的信任度来决定是否与j进行交易[
+ V; A I4 m! _* n" z) r# eask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 ]0 \( j6 t. @) @5 J& P2 i C
! j- {1 W7 |% _, a) l[" `) }/ K" ]- l8 p3 s, \4 c2 H8 i
; X" j* I3 M' R0 Z4 Ddo-trade g/ p5 F* G1 b8 ?
' [9 i, ^( n4 s1 i- p" Zupdate-credibility-ijl2 z0 Y6 e- O( G
' g) N( } J6 Qupdate-credibility-list
% h5 J6 |7 n4 a$ `) ^2 ?' y8 |8 W. z9 O6 U. y8 B
8 d- ^" F+ D. V$ X/ E0 k
update-global-reputation-list; |% N7 @$ e/ n
* d, I& @3 w6 wpoll-class
5 I1 M* o- J* v% V& c+ K+ T' N ^" d+ e% m0 P8 E
get-color
6 T _- Y: M: b; t$ |5 ]
% G' k$ K8 {$ l) u8 q n; O]]
5 y+ f( X0 m7 O
! Y- n+ O$ m. X( e;;如果所得的信任度满足条件,则进行交易7 E: F) C; i0 u5 ]$ M& q% D8 d
3 C6 H% h3 q7 k, h% Q- P[) U4 i. @% C2 i2 O1 n
" p" _+ l8 H4 {! L" L1 |
rt random 360) Y$ p% _5 y0 \7 f+ z
! o! x9 Q, Y+ M9 c# e1 m
fd 1
' }$ @1 L' D* l- D! M
$ } v. [ x( E. A+ R' m]
/ n) ~4 `4 Z/ P
" q2 Z' `9 _* |" ]# Y( [; Bend( q. V( [6 A; _
! A" z2 v6 K! e3 O6 {
to do-trust / p% l- O( o3 m1 c1 G' D
set trust-ok False2 w: _6 q" e7 a
1 j( ^# P( F0 g! p9 ^0 Z4 o2 C) b- J7 y8 p9 |0 _
let max-trade-times 0
, Y B, W, \" J; U3 Q6 yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 z* X/ H8 M* |6 p
let max-trade-money 0
9 Z/ W9 z6 o1 K9 k( _( ]foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- F$ I2 c. ]" U9 O w: |( U& s
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 P& g) G% D: z$ }. s! y3 s0 v
: T+ ^* g S" N, l e( M2 `3 s& v, |# X( g
get-global-proportion
K8 ]& z. j! \6 z( s7 X5 [let trust-value
* L8 G6 ?9 l7 d! a9 N; O% G* ^5 glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)0 o `9 `5 v. ?) f# ^ B2 w2 D6 ]
if(trust-value > trade-trust-value)7 ~; f5 p1 S* v5 A, h
[set trust-ok true]6 `: Z( E x2 _3 B$ d
end
& ]: J" s! n3 ]7 C- H& i* [1 b, E& |9 I& g9 L
to get-global-proportion1 i% ^: A0 `2 Q8 Z7 e, c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. F* ?% w& w/ Z9 ?- p, A& D: Q2 a2 m[set global-proportion 0]+ l) A+ L% \. ?8 f( ? N+ e
[let i 04 \: ?. J; c) M% H; z" P4 H
let sum-money 0
1 q) S. m' T, |' }3 s' e# y& Wwhile[ i < people]
4 u- X0 Q N p. G[
% A7 ?- C. G9 Y" `5 a$ x( P7 Q; lif( length (item i
" }7 Q$ a7 Y3 w# n: B[trade-record-all] of customer) > 3 )
1 w5 M5 a6 |$ O5 c[
! w k. W) O' W4 U: j& fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 Q- O0 n$ u! v8 L0 B/ p. N
]
, Q$ i# g2 a7 C]. d! S4 z/ s3 D
let j 0
! Y( o& U" M4 tlet note 0% o4 W2 L1 H" N5 \. I9 F: R2 C
while[ j < people]
: d- H4 b. a9 j, l7 c5 j G[
; D. Y5 A1 g/ h" B# k0 Cif( length (item i
8 @9 s& q. I% X& u[trade-record-all] of customer) > 3 )
3 W$ a/ h3 _- V. ]" {[& Q% G5 O/ c: }/ k1 R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 v+ [: j4 N# I5 O5 N, X* o[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) p2 a& c( Z$ L7 Y% K* ~# Z6 X, S, V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 R) e/ C! Y$ w5 I; ?7 N]" y* s! Q5 n0 q- g7 n0 i, i* a
]& O) z2 E1 _$ k# K3 G. [; e% l d/ M
set global-proportion note
- G2 A/ T I2 |]
5 Q) E8 G# h3 w: |, Nend
# x( T4 j" N, @8 a: q" s1 z% |" [6 s- d' t
to do-trade
" x0 R5 s% D! f% C. b;;这个过程实际上是给双方作出评价的过程
/ o" z0 g9 P( C; Z1 gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 I! I) S' s" b6 ^9 n, z# x- d6 Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, M) A E% U; t4 e3 nset trade-record-current lput(timer) trade-record-current7 X) p5 a! a; y. t: A. A Z: m
;;评价时间; J! S4 w! L$ l9 f( a5 a" x
ask myself [0 w9 G: e: J; J* O n1 s
update-local-reputation
! M! E0 I9 k2 n- P+ Xset trade-record-current lput([local-reputation] of myself) trade-record-current5 y' a& u/ _, ]& c3 t3 ~$ x
]/ z8 l7 @! f3 n- g6 b
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 L$ [5 s$ `; i g5 d;;将此次交易的记录加入到trade-record-one中
0 k) J- m" @1 V; f \set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: a" s% @+ ]$ F7 q" i8 c4 }let note (item 2 trade-record-current )
+ S1 n+ O& w+ C3 A& D7 h7 k* Xset trade-record-current
) o6 R4 d7 f! ?(replace-item 2 trade-record-current (item 3 trade-record-current))& g% @( k. T0 R( F4 t! C" M+ V9 y
set trade-record-current: T Q$ q- v) [$ [
(replace-item 3 trade-record-current note): C. L( S8 r% w- Q3 ^9 _3 H0 p
% z, ?* Z. l& ~: @7 `
& B: E3 f! @! `6 P* k: n
ask customer [
8 N9 G9 W2 v0 [update-local-reputation Z. K5 b0 E# F% O7 D9 e; f) [
set trade-record-current& J# M, _& x5 ^1 N/ ]/ B, E* P/ w
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 L% \9 |& _/ x
]
( u& h4 S# J5 Z8 ~) J
( r' O) h0 t7 t+ S
3 E, d& Y. J& u) I7 v( Pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' m8 V+ t8 B' ^( E: h4 X
" ]) o5 Q8 x, p1 F- i$ v1 Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) d+ l! u6 D* `1 O. g' P( C2 d9 s
;;将此次交易的记录加入到customer的trade-record-all中
' i! O! q/ I! r2 v8 xend2 n; } j3 g# e3 @4 S( ?
- J+ p) F& R- ~2 y
to update-local-reputation+ w: J# a" i) n) R. Y- I* @
set [trade-record-one-len] of myself length [trade-record-one] of myself
7 C. U+ v* }% n" V; H# K# Q- r& g# K; w8 a5 S- `
$ U: V+ d0 H" A- x9 K0 W
;;if [trade-record-one-len] of myself > 3 ' F9 p7 ~$ ~5 H
update-neighbor-total% O i+ Y) {3 e0 S
;;更新邻居节点的数目,在此进行# I; ?/ W7 A+ N. ^1 E. _; |( g4 [
let i 3
7 X) |* r3 A+ o/ n* L3 flet sum-time 0
5 q3 z, u) Q# f. c7 lwhile[i < [trade-record-one-len] of myself]
$ X: G9 v- A& ]( V[: v" t* Z7 m9 D6 j J" _
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" t! a. Q6 I- ]1 X; Z. x2 [set i
" u, a! \/ _- }5 X y" s( i + 1)3 I! l% a6 x5 Z8 J. d
]
* H) x- |* U* Flet j 3
* {5 g5 O( c |let sum-money 02 h) Y# I" [2 J/ k. v
while[j < [trade-record-one-len] of myself]
4 j* m* p3 x3 b[
( o. S! [/ {; i _+ _! ]- E7 ^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)
& m& m8 h& _+ V0 x8 S- G! \) tset j
$ Z0 R) P w* `& q6 o* l( j + 1)
# D' B9 h# @5 S: F8 b( S9 Y S]5 D& ~ \ K% @$ @/ U/ _
let k 3" y! B0 y/ N" W$ q4 _$ l/ l
let power 0, ?: m( r/ b- x y+ g( J/ w! Q
let local 07 d: \/ z9 P8 w8 L* D' b* n
while [k <[trade-record-one-len] of myself]) W3 Y. A; j0 ^
[& h$ Z. W2 x0 V2 T
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) + H6 g+ L$ S1 v4 Y3 k
set k (k + 1)2 M" Z6 V1 @7 j8 O1 ~4 J4 I
]
1 N: D3 n0 i& ~" ?6 G1 ]set [local-reputation] of myself (local)
' x9 S- t1 U( ~! j# J! L3 ^4 ?5 Gend
9 |. B6 ~3 ^2 X# O
$ y6 j) Q, z5 V5 m0 [1 S3 K0 gto update-neighbor-total' Y1 G5 i1 \1 Q& E/ I6 C
" N8 G" G7 q" X: L& R1 D3 o
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, q$ m3 }2 r4 N R; p2 {3 i
1 P0 g/ F( [- l. ]/ R1 d2 q
% l/ J; P5 H' a qend% n/ x: C( y9 T) Q, Z
% f5 @7 f, e( e# @
to update-credibility-ijl
2 [# _% k% |# L* e
7 K7 z' B! K8 p( a( C; ];;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。
3 @3 u0 g# ]3 r* z) ^# olet l 0
+ P0 u. I2 T ~4 I" g- k9 O' jwhile[ l < people ]
" ], T: Q. ^- p1 I+ A' g;;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
* D8 a, I$ b5 z0 O[
1 e7 K4 P( r8 ^! a( plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 s7 B& }% J/ \& ^' Qif (trade-record-one-j-l-len > 3)
" {, a3 C- N* a9 S[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
1 G7 ?; s S& s" Wlet i 34 \ h7 ?6 a" |( W+ u7 ^: B5 k
let sum-time 0
9 B9 L% M$ H) Wwhile[i < trade-record-one-len]
* N! |/ a' b" E- S- t8 i! x[
; l9 I: S3 ^7 Kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* J( e& r a0 V5 M' pset i
4 f }" @' u6 f2 F" x( i + 1)
, I8 l0 x: H# B8 i" W]. y3 o$ g0 `- Y
let credibility-i-j-l 0
) b7 r2 U0 f1 d1 w; `& ~/ V* N;;i评价(j对jl的评价)7 J- v3 p7 c" G
let j 3
' e: x8 E0 k" I9 v5 d ]0 @) \5 elet k 4
$ K& J. A6 \& Gwhile[j < trade-record-one-len]0 z! ~. m- E. Z$ _ p l) k. J
[
2 i* n: t. U) j5 C0 dwhile [((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
7 [) B" P6 W) w2 S/ y% @- lset 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)
' K6 U% U! U" S/ e6 }set j& x7 D) z5 Y- o2 N1 k/ E: y
( j + 1)3 d$ I! P+ s" i5 \2 x$ E- u' s
]; M3 e6 n' J# S1 ~6 C0 O0 U+ _$ C
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 ))) u x' V6 s% A) C; P- }7 o2 x
4 p0 n" f0 }1 X& Z- k7 ~% O
$ Y5 B; C9 ~/ {- ^! H# N9 ~
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
K, F: ^: t0 {: d y" T0 ?1 j: _5 B B' l;;及时更新i对l的评价质量的评价
4 q2 A2 {: @" k$ Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] Z. _ F2 q Q- Y. z' S
set l (l + 1)' ^6 c, n/ v/ b& k/ @
]
) [# l j+ @" N4 z- p& C1 o5 }end
3 }8 n: C4 _0 u5 t
: R4 k' S. S* @- `- Cto update-credibility-list* E k, [# K' Y' x/ E
let i 0
& C) P8 v7 T( @5 nwhile[i < people]1 D: `: @- w8 Q! Z
[/ S3 e# ?8 }2 S( p! x/ b! k. p
let j 0& e9 T8 ?- D8 T
let note 04 E8 K2 u7 j c3 H2 W L) x
let k 0
1 A4 Q% t, X& X4 ~; E: e4 V;;计作出过评价的邻居节点的数目
. D7 s$ v- K, Wwhile[j < people]
0 {" f0 |# E$ ~3 T4 T& K[8 V2 y+ x& ?( ^$ `" }
if (item j( [credibility] of turtle (i + 1)) != -1)
2 ?, `! i2 T" I) d+ Q1 f; b;;判断是否给本turtle的评价质量做出过评价的节点
. L2 P6 b" m2 w e) k* a[set note (note + item j ([credibility]of turtle (i + 1)))
7 o; N0 M1 Z; o& r5 T) c+ p;;*(exp (-(people - 2)))/(people - 2))]
7 t5 w0 N7 t3 ^7 e: G$ H% tset k (k + 1)- U2 F; q( C3 [. ?1 T
]
& u5 I, \; e% O! q: K* Vset j (j + 1)
$ [& S W& p, j) b]
3 A* F) |. t9 |' d6 m! B, {set note (note *(exp (- (1 / k)))/ k)
! Q# ]8 x- w1 wset credibility-list (replace-item i credibility-list note)
7 G5 D- X! T3 _: X$ Cset i (i + 1)
1 w. J- f6 ~8 a# x]# F+ T7 A; ^3 ^; B6 e2 @2 E" @
end
8 E0 |9 v$ ]# w8 P$ a6 b
* D9 W+ p" y I b& fto update-global-reputation-list
% a1 v- W0 v, }0 b3 d& ]let j 0
7 _1 h& u6 j6 {, L% bwhile[j < people]
0 K+ d7 Q& L% K" I Q[( l6 U6 l! l( `. I! v$ Z
let new 05 E# F- W* f, A9 r
;;暂存新的一个全局声誉
; h- `- f( M% e6 a0 Y2 Mlet i 0
* R6 i; W9 \5 J# ]" M$ L5 nlet sum-money 0& E: n, b i0 G9 z+ m2 f3 q
let credibility-money 0
2 O/ m( L( t9 K/ w, Dwhile [i < people]
+ [2 _: L, {) i& B Q4 @3 `[0 b& Y8 g. i, l$ q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 r" d# `. A. p0 o8 Y( xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# @( m, d& _9 \: ?2 |" u
set i (i + 1)
. T( V8 c) Q9 T5 |) i/ q]9 R* g1 ^2 }) H: L0 g% ]' ]
let k 0
5 k4 }; _" j1 mlet new1 0
( @! G X$ H+ a* F! Y9 `2 zwhile [k < people]
3 o) T; w) Y& ]& `8 g[6 ?# G" B- Y7 L: O6 b) I/ x# H
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)+ p( j* K; y9 v3 i
set k (k + 1)% i( Q8 Z, X. J1 u; P. ~2 _9 s; G9 ?
]
; h( S9 d! v0 J. u; m# j5 yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 P$ f+ T7 d8 t' m/ F; Vset global-reputation-list (replace-item j global-reputation-list new)& ^4 d% H8 A* D/ v& V- Q+ M
set j (j + 1)9 @; t- i0 k! r
]
9 s, ~% [6 u c) F3 i) fend
" _* V. S# J) {2 N! L( T ~+ y: J5 u2 Q; r" R1 K8 v0 S
, K/ T4 P( R* y3 i4 G% {0 |
* S _- U& W' E/ M8 x' u; I* g
to get-color' T K7 w. @2 ~2 } ?4 d
& g. ` b( h8 D; l1 ^1 N
set color blue
2 j" d5 s7 |! V8 }5 t ~# z$ A" Pend- a* a5 e5 ?# ^# F4 K5 e; Z
& i3 n9 `- `/ d9 i0 l
to poll-class* [, S* X) s2 {$ S; X
end! |3 L. U" ~2 I' J, x+ J
1 e9 T% D1 V9 H; Oto setup-plot1
+ U2 _3 |" E7 N
& C6 N: _. [6 R* Vset-current-plot "Trends-of-Local-reputation"" F, [2 f. x0 I- P. m; \5 L7 O
3 m# B$ \: A+ P/ s4 W9 o% k+ u
set-plot-x-range 0 xmax" \9 x( U+ d; @" l; L3 h" [% W
6 @" Z5 J1 P/ ? |set-plot-y-range 0.0 ymax
1 |, N* `" N6 A* G' w: E* rend
& e/ }/ M* H b1 u; c; X1 l1 ]5 [0 g, N
to setup-plot2. F4 E% T+ F& A+ {' ]4 P# t! {
5 V( q5 X8 K% I/ o9 w" |1 Q1 Cset-current-plot "Trends-of-global-reputation"
9 U( G& o2 O K7 A/ x0 M3 Z# c
$ I2 Q7 v9 P/ F6 ^% n' Zset-plot-x-range 0 xmax1 h* y2 z4 P" ]/ t+ M/ {9 D
0 b* M3 A G1 @: `. `
set-plot-y-range 0.0 ymax
5 x8 r0 d2 I; B/ H$ x; |1 Cend
6 i# S* D2 w7 N: v' ~7 r
$ J2 x1 {9 g7 Z) B, Y1 [0 Mto setup-plot3
; O2 b# C5 H+ H* J/ F2 @3 d, a
set-current-plot "Trends-of-credibility"/ }' V1 l9 j* \# O( L& M
# T2 U3 R- L4 r. |! }' r0 d
set-plot-x-range 0 xmax; Q7 {2 F; p. P; F
7 A4 B' I; P" `$ V! q \1 k; r0 c
set-plot-y-range 0.0 ymax
# f. K* m1 }1 n3 j& Q6 zend6 M' @% z# ^) k5 K7 H& D
- c& ~9 X8 z; N% }0 Q
to do-plots
3 K+ I0 A* M2 C$ \) `3 A% T. t3 C, Pset-current-plot "Trends-of-Local-reputation"
% w( C) U/ z0 D) F$ Hset-current-plot-pen "Honest service") X3 W, K+ `9 a8 `3 N4 |
end
/ V7 {2 y3 o3 n5 s, [9 |
0 E% ^- \# j% A* Y U, U[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|