|
|

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
* L7 D& B8 |# Z% I. `globals[7 Q6 o0 `" v. z: H" _1 V; B1 Q
xmax
' {: o# U. Q0 r" g ]) |7 rymax
$ |6 x! t7 f; t2 r- H$ lglobal-reputation-list. `. Y' B6 r, r1 h
, y, M$ M' B: g6 t- V
;;每一个turtle的全局声誉都存在此LIST中; P' \& |- K Y
credibility-list$ W" n" M0 |' p9 m8 a4 v8 }' H7 \* Z
;;每一个turtle的评价可信度: j; f) f6 x' M1 {2 w- h
honest-service
: |$ Q9 N" \& D& X& runhonest-service L/ {) m K2 t
oscillation
$ p* W4 k) q# W# u8 Q- ]' O7 Orand-dynamic
$ [9 J) a# w3 Z- Z]
# J4 u; M) W ` v! v' } b7 m$ D8 @: v% \+ Z- [7 @( q
turtles-own[
! D# M& E7 a/ B, ztrade-record-all
, p. j/ ~1 c3 Z+ p6 `( {4 {# f; ^;;a list of lists,由trade-record-one组成& W' w1 ~- \8 F9 m2 d
trade-record-one
3 @( |$ y8 d. {9 f;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' g8 ?5 y$ j. f! G9 Q
: X2 p- m* ?8 U. 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/ S! L$ X- utrade-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] f& S7 I+ N1 f1 Q7 b
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
. ~5 ~% o( j o* L# ineighbor-total
7 K& V0 o) t! `& q;;记录该turtle的邻居节点的数目" K) |" `( v( i0 x8 f& a2 ]5 P
trade-time
7 a3 J3 ]/ l. a/ {7 G" u( t;;当前发生交易的turtle的交易时间3 T; n* e- T/ O$ V+ s; R
appraise-give- ?; }- U! n: q" G6 b6 }8 `! V) Y% U
;;当前发生交易时给出的评价
, _; ]( Y8 Y1 [9 Aappraise-receive
) i3 a5 r! d' f# m;;当前发生交易时收到的评价
7 Q# U+ j- _) J* t8 Uappraise-time! N+ x6 r+ I) l) ^, W. L
;;当前发生交易时的评价时间/ X, S) o) \0 w0 D. H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, ?7 D! h; Z. L) i% U
trade-times-total; [6 l& M* _) S0 [
;;与当前turtle的交易总次数
! U6 H$ u5 l7 u- D" n$ Htrade-money-total
8 c9 v7 f) k5 v! N;;与当前turtle的交易总金额5 ^, ^; A( i) z/ h2 h& U( B
local-reputation! A: ]; M1 _; V
global-reputation
3 G( J" I( Z) G) zcredibility0 u: M, z& g& E. T; C" X
;;评价可信度,每次交易后都需要更新6 ^; K M6 E# L5 t* w* @3 n" H
credibility-all4 p8 F2 X' ^2 R6 v7 L
;;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
/ w9 c7 k) E- v$ h5 e
: R; n+ c/ k! D3 c. k; }# u2 E;;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
& K- c2 N z4 r, Jcredibility-one- F& u- [1 M4 ?8 r
;;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
1 M, E/ @! C2 N, Y2 R+ ]global-proportion3 ^- g* a. x8 L, Y8 ]
customer
' Q' e( \% b, f3 I3 L( ~# Icustomer-no
5 \& a/ d9 z. G0 |6 atrust-ok
4 U S( b# H- U4 s4 Ctrade-record-one-len;;trade-record-one的长度
+ y- k3 t3 v: G( z$ D]/ D6 S/ d5 U' ^
& ]% o( ]! \; b# S;;setup procedure
0 ~: R2 q, ^8 e, P0 s
# d8 \0 E) w4 Q$ ?; }" \; A1 w9 Zto setup! t9 [3 A( J1 w, \' p0 y/ l
0 t4 P1 \: }, [* U; }# Q
ca) I/ J7 N7 I( v* I- ]2 M3 R
- ]( ]1 \0 D! U/ `) Yinitialize-settings
m+ q3 o$ k' V5 `$ ~5 e3 S) |* c( ~; ^1 ]" o
crt people [setup-turtles]" L4 ~. M% {9 j% Q7 R5 g
' \4 I1 _% v; e% Z1 A2 L
reset-timer6 ?3 r" V7 Q" Y' k
+ N- W" {9 S/ {% e- K' B
poll-class
* t. ?, ^: Q+ A5 z" L0 H3 H/ t# I0 c6 q* p- X: m8 {- I
setup-plots
* Q' v# H; _" C- u7 T( D2 g
2 k: G! l; r8 h( }; p8 ndo-plots
) c6 l/ l6 R, cend7 |* n6 \# p5 v! x# z0 }
! A( ?: f$ l ]1 ]
to initialize-settings
; z& z4 N @; D. b$ ?- M8 v
2 D1 W1 ]- ?/ X: b" S) qset global-reputation-list []
$ d/ O' g( |+ V$ Z
' U6 P9 A, I1 x" M6 B! I1 j7 oset credibility-list n-values people [0.5]6 J% T2 l; @/ G: {
- L4 D( M7 f5 |2 ^# j4 a& J
set honest-service 0) H/ E( a, n/ ~9 g% Z. L/ f+ E
8 H! k% I/ V' l: X/ g
set unhonest-service 0
% L' s" N/ g* u, Y6 u' c6 R( O
8 C* O9 a2 I, g ^set oscillation 0# }$ s+ O8 ~/ Y
' [% n0 ~& X7 D& E1 }
set rand-dynamic 0
6 Q8 w% J8 P, { d' gend
3 G5 v" w; i; r! M) N! \0 f! u' \1 F. t g+ c c6 `
to setup-turtles
8 @- g* X4 m: \" K- z4 r/ q3 y& Yset shape "person"
- }1 L! e- n4 zsetxy random-xcor random-ycor# `- m- l i% P/ o- [! c
set trade-record-one []1 n+ E9 u- g* T) e
, {8 X: R5 [3 y$ o% zset trade-record-all n-values people [(list (? + 1) 0 0)] . I+ C) f1 x( a( s; a1 l
2 m B! Z8 P+ e. i4 Uset trade-record-current []+ ^: U; S8 k0 F- ]& I0 `1 H
set credibility-receive []
6 F5 b. v# h, @set local-reputation 0.5
S/ s0 e* C& H5 l$ T) L- Qset neighbor-total 0
% c7 G; f' Y2 H2 Tset trade-times-total 0
9 H* L2 K% F* s/ Bset trade-money-total 0
3 l' r; q" l* n- W3 qset customer nobody, I5 y# A. W8 Y$ w( W; ?- s& ?+ P
set credibility-all n-values people [creat-credibility]3 D1 u7 y0 W2 B9 X, i0 o! L
set credibility n-values people [-1]
5 U- K; [& C0 m' z1 _+ {! D' ~7 `get-color
3 u8 D' ^( d& V: @5 J$ X
. e1 L/ F. ^& O4 ^5 m/ j" V$ ~end, {1 o$ w# E( z6 N5 e& d8 b* O8 v+ B
4 ]0 P0 S5 t0 b2 J/ z
to-report creat-credibility
$ i8 o3 K5 T* T# }report n-values people [0.5]
+ E, M! W: Y! Y3 E' ]1 Aend, e) v; }) Z" A! c4 t- |, F9 k% D
/ l' G3 f! e7 T: n: s& Q' f# Ito setup-plots5 J% C( @* n" |' C# G2 M3 I, C9 X
, C# b: V1 p' h, x" T
set xmax 30- A4 p+ Q; n/ O( [' W! g; w
) q# w6 e+ b$ N' w: H" ^' r. f
set ymax 1.0
( r5 `) u) Y! i3 s. w
B2 Y/ k5 x2 O: d& _+ t7 lclear-all-plots- p! p( U" e4 s$ ?- e5 }
) e" W; K2 @8 e
setup-plot14 ~7 Q7 j/ z$ J3 F! S
& |3 s) `. C3 o( qsetup-plot2- H, _ i* F1 B! v9 s# c
7 s3 A& i( I) a7 W* Q: m: Y! msetup-plot3
# K: o; y- R4 Z+ Zend" B/ s: V4 T* j- u
& A1 u1 |) M6 B! j+ Z7 D0 B;;run time procedures# @# Z3 X+ z9 X* f, R
* q1 E9 S1 D. c$ S+ R ^5 @" E0 Ato go
$ k& `0 @0 M$ `. j2 i+ ~, _
/ A5 d' y A4 f8 h$ |ask turtles [do-business]
" K, z" } n, R! v( pend
; z% s( ^9 q2 c* w" f; e; X3 R: A7 G9 d6 s8 k9 o
to do-business
. R: [$ [6 K& g7 V& q
, p4 x. V9 a, q5 n v! ~; g _0 Q# J W
3 s/ z1 } M- ]3 f. {" ^rt random 360
; i4 V- B) {9 j `
0 |2 }! p- Q& G! t7 ~fd 1/ n* y+ b* _; M. ]" |$ S" s; ~
]! l0 F+ V2 L' f5 @, a
ifelse(other turtles-here != nobody)[
# a4 B+ N) A3 R: y6 @
4 K- o U1 d4 c% O* j* G! I- x f8 r; Vset customer one-of other turtles-here
6 H& b; D& ^" e/ {; C
* e9 o( {7 l+ f2 u/ Q1 N;; set [customer] of customer myself; Y H$ M. z j' q% V( U/ o+ `( f! v
4 R+ J+ e! `/ t" L4 Y+ A# Xset [trade-record-one] of self item (([who] of customer) - 1)
3 v* _1 U+ l& v! u C# g9 s/ v[trade-record-all]of self& n6 V6 O# W2 J1 |8 g6 x1 H- R% v* i
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
H4 \& ]5 y! \/ R, w1 b& c ?2 k% E. l, _
set [trade-record-one] of customer item (([who] of self) - 1)2 @: o5 {7 `* Y/ v
[trade-record-all]of customer
: l; @* I$ n4 Q4 ]* ?1 |% ]: [( Y( w9 {7 B! U4 t b8 n
set [trade-record-one-len] of self length [trade-record-one] of self* @1 d* f# B! E) j# J6 C
" W/ d) z/ ^0 X
set trade-record-current( list (timer) (random money-upper-limit))
( \8 j& z. [. E
- m$ t3 r- [$ r: P6 h5 ~ask self [do-trust]
1 `+ S" J: M/ }1 H- A2 p;;先求i对j的信任度
9 b1 L5 w" `( E* {3 ?3 D7 H
$ _3 x% t. {9 S0 W1 n9 pif ([trust-ok] of self)6 J3 n# I% a* H
;;根据i对j的信任度来决定是否与j进行交易[; R0 W/ c0 Y; w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
/ G' g! b4 C% l( Z& I: h: E
# S& d& f: s; z- C' K[
: e6 c9 ~) J' l1 \& Y
$ V8 q9 ?9 K3 O E9 z4 P6 }do-trade
# v6 T. k. T9 w8 D" U
% E# {4 n. Z6 r/ x6 d, F' P- @update-credibility-ijl2 w+ ]+ U# p- Q4 _7 [' }4 }8 f
1 B+ I$ E, P7 I5 }% f
update-credibility-list
* S9 f: ~1 t2 b; [7 H6 w: P% e$ k/ l4 i4 j
# O- {( c% v8 B4 R* z! Z+ bupdate-global-reputation-list8 o0 x- \# M, q7 j5 g7 J9 a" A' s
8 N) |; ~6 @; N3 F8 Y
poll-class9 A. s) a7 h; S4 m' k% E, n
" g* {- w) I3 Y5 h s; r+ `
get-color, ?+ \' a, `, M. K
T- x5 f$ `- c* [* f6 W- q
]]
4 q5 W3 N1 |! E0 W/ l9 I2 k2 d1 B: M+ d+ ]
;;如果所得的信任度满足条件,则进行交易/ ?" t8 \( @4 Q
) G& i! W5 z X' E: T
[
9 X) Q! @; E R0 ]3 a* U; U, |. {6 U
rt random 360* `9 L* J: E% t0 f
& ~( D: c- s0 \: u: p' Q/ Vfd 1- ?0 J' [, {( z+ [7 E' R' N
2 g9 \! q- S, B$ O1 i( u
]/ ]* H& z! d1 v; u8 C( e) X& w
; p8 i9 ]. ]8 u- L3 D+ w$ N
end
. s- t7 |+ o+ e q' }/ O7 r B# X' f, z- E h g/ X, }4 B B6 z; `7 C
to do-trust
0 F" D: M7 F1 H K4 ?' j: [set trust-ok False- }( J; U: l6 a2 F X4 G! {% [
* ~+ U& p8 j" T1 L4 k; E
+ g; U' Q- y/ O; T# e A: Zlet max-trade-times 0
7 U: g# I7 |, V$ F% aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 |9 m6 O1 V! v
let max-trade-money 0
7 ]% B/ a1 m( X8 }* t" @foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ e( |: z, i/ S5 ]! d
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ k F w8 [: c" Q5 V. R
i* k* S3 r3 `1 H
: ?: q. C: m/ e7 N+ Dget-global-proportion
$ {4 E$ O A+ i8 T# m2 [let trust-value- O! @; d( O% u) 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); l4 M1 A0 e' X' G
if(trust-value > trade-trust-value)& E% b, v6 ?( w2 h, [2 b
[set trust-ok true]3 |& c2 `. ~# K( p( Z
end
# Y- t# f7 d4 e7 ^
3 Y/ g; ~5 k% ?, @5 m0 U+ Tto get-global-proportion9 O) \3 g3 S2 U3 I. q/ q* K4 R5 m
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' P& Q ?3 e3 G[set global-proportion 0]
4 z" j2 y7 b- V[let i 04 R9 ?- V0 C/ @9 Y/ N& w. S5 M* x
let sum-money 0# A h4 |2 O5 B5 ]; b3 ?9 m
while[ i < people]
4 O. k I0 C6 i1 V& O[
' X; w( T& n% o( {if( length (item i
1 \; K8 a+ t4 p4 h" s[trade-record-all] of customer) > 3 )
+ v M- d* B' e l[6 h* O4 w' D7 Z6 T! S' P! G
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 h1 U3 c- ~% p; J2 P5 T
]
4 s0 {! s8 P' a! ^6 k- P3 a1 w]
% t# d' t: O' G! g c- M- |let j 0
$ k6 [# \" e3 o" ?let note 0% G ?3 I! }7 ~ {. ?0 `
while[ j < people]$ m3 w" [0 |8 L
[, S1 ^* a6 A7 K( e
if( length (item i1 X) L* R7 ]# y9 z% F& A. W6 {; h
[trade-record-all] of customer) > 3 )
2 M1 _$ z" l- {& v, `[: W8 ]* ?: X* T. W3 M# ~" M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)9 Z% H4 }4 k; c
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 O" }; N9 F# u) ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 Y: f( h! j: k0 N! ?
]: @9 |0 f5 N9 |, {: b
]5 u$ Q; p! G- g% d0 |$ a; [
set global-proportion note
2 L8 H( j8 l5 t2 F]
" J( k! j# e) t* M: L" kend; h [5 F6 N+ R, c1 t a; q1 r
" c/ V% c' s5 e7 l
to do-trade
. R" c2 r5 ^9 V7 }0 [& m9 r7 A2 ];;这个过程实际上是给双方作出评价的过程
$ T" x' r4 D" Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) H9 g g. ]4 e y/ l1 R& W
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 N2 @- Y/ |0 v2 `5 wset trade-record-current lput(timer) trade-record-current$ D, T, {: p, |0 L, W
;;评价时间
6 F, b/ }- R* @% K- S: E& B4 d6 f! hask myself [
3 g+ Z. u5 H' o+ N# ?6 supdate-local-reputation& {1 `! Y$ p0 t; ^& D2 N
set trade-record-current lput([local-reputation] of myself) trade-record-current
* ~7 S, C; H0 \& S8 L% U]3 W1 S& h; ^. Q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 ?8 T; J7 |- U( Y8 A
;;将此次交易的记录加入到trade-record-one中
# ~6 _9 y& I, y/ i5 h1 N, pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 W2 |3 |* C/ q; }0 ?' ^+ Ilet note (item 2 trade-record-current )
! k: J, R0 M, X- ]! v# i% }set trade-record-current
0 k6 @3 O1 m: B: v* E(replace-item 2 trade-record-current (item 3 trade-record-current))
" Y8 Q: w- O' \8 {9 A6 \set trade-record-current
" e- a c2 T* [2 Y# S$ ^. O3 m(replace-item 3 trade-record-current note)" Z$ ?- F6 j- }8 l2 d1 j, y' Q8 y- w
& w/ ]( v) w# L* S1 w. {; q' ?
* ^* J( h4 v! ^, k/ n
ask customer [
: ^& W# ^2 y" Y0 [6 mupdate-local-reputation; X" R5 C( N# g. q" }
set trade-record-current" m; P+ q/ |5 N1 I: L& m3 j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* g6 I4 z9 U4 Y: F! C]
7 l7 y& r7 o2 Z+ q9 T/ G2 d
7 Y, l/ b: `) N W* [% F J8 H; r$ J# S. a8 O
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- a& z9 \" o0 j' G3 {9 f6 X
: y1 Y; H2 ?8 Y8 e- k G- Xset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 x# {8 b0 {5 i; A0 v8 \8 Y" \
;;将此次交易的记录加入到customer的trade-record-all中" v5 y6 ?% }1 Z, B
end5 Q0 m* ?) c' M2 G6 b R3 g# R* f
, t8 s7 ^" N, G) G- m! Z% k
to update-local-reputation
l4 `% Y% j$ Y; [/ Aset [trade-record-one-len] of myself length [trade-record-one] of myself
+ ^% O! _( F- W5 E/ w1 X4 Q$ l( c1 o7 X( r8 W
% `3 \- v0 S( I8 M& ~;;if [trade-record-one-len] of myself > 3
9 z7 l* C0 p ^! Hupdate-neighbor-total
7 ?. `* }' u4 O$ y% G" ~;;更新邻居节点的数目,在此进行4 s8 c9 ]1 b/ C
let i 3: P U0 Z) f% H E3 v0 _
let sum-time 0
9 C/ J$ y# ~ Fwhile[i < [trade-record-one-len] of myself]( g2 X; u, X& Y2 W' R' x9 g4 E" X
[
) Z/ ~- H. `- H- Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) y9 g. O( O* @4 ]/ tset i$ _, e; N5 `. E# ~ a6 E0 W
( i + 1): a: b' W. @: f& d
]
a6 _1 ~8 E2 g! nlet j 3
& x' A& V/ ^* r. B' vlet sum-money 04 V& J. b* s ]& s
while[j < [trade-record-one-len] of myself]
0 O! d1 f; d; P. O0 \% Y[/ B) j q7 \( P8 f6 x. O1 S; D2 z3 }
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)
: C3 M! }- l) {7 M+ mset j9 T, O b* V6 ^: q
( j + 1)
/ z1 P5 \/ m9 Z& ~& j% l2 |]$ [1 q: T' I- b3 |1 O! ^
let k 3
6 N- r1 R6 K1 W: E1 H7 klet power 0# F6 M4 D) y" g: U9 S
let local 0/ l1 z/ I" N8 h9 [
while [k <[trade-record-one-len] of myself]
4 b [& y/ m# K1 a% M2 S[4 {, x, N/ C, y* u& |; r' `
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) " c; S( F T! u+ s) T% f# J
set k (k + 1)# H$ Q. F" @8 s- S
]: J; h0 f0 E3 \$ K9 L5 v0 v. [* U
set [local-reputation] of myself (local)
, A& r$ X) t. s! pend
4 c `& l4 s b. X6 o
& | a5 a" @" Z2 ^- o( L, Hto update-neighbor-total
+ P2 R5 J1 X e/ r6 c/ T# g- @0 s# r7 y9 v& ]$ e
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. ~5 {" ~; w( P( H/ r0 p
5 W; `4 ^5 l" ^+ S& q- D- _# m- l, V4 ?+ e3 J" @. O
end
0 w. ^, p4 N2 e" l) f+ j7 d4 D5 X0 `0 h* t/ U+ d k; S
to update-credibility-ijl
8 A' J' x3 T- ?2 }6 ~" k1 V& N
+ J! m; w# D! s( C# L6 ];;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。
; E) F( m/ y& ^1 elet l 0% B8 f* n4 X7 s* d) y0 d
while[ l < people ]7 b8 F# K3 ^3 I% c4 O* A
;;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
3 v6 G, W1 }1 z) P% g[$ [. s; A6 ?" K# P. K
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 n$ q) t% s! O: x% G' d
if (trade-record-one-j-l-len > 3)
# I5 j& t/ Q9 v9 c E- k0 g[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-one2 h4 n+ n% H# w! E/ |
let i 3 g+ x0 f6 W# q4 N2 u; o
let sum-time 06 C3 I# z% j4 J) q
while[i < trade-record-one-len]
# E5 Q' X' o4 _& {% t[
: [" N7 p" S* B9 D2 S0 Vset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! {' _; e) P$ r1 f/ v, b& \8 [4 G% \
set i& w+ k! H" q7 ?+ R
( i + 1)
5 m9 O) y- f' z]
j" \6 V V: p) ylet credibility-i-j-l 0
4 G. \! ?+ Y! g |- L" [/ s7 M;;i评价(j对jl的评价), {: ]5 b- W, u6 F# W
let j 3
* i- Q6 @$ _$ W( r3 V- P' ?let k 4
! ?" o: m# f5 A* xwhile[j < trade-record-one-len]" H% ~! ^( d7 d' [5 A8 ]
[
% z$ Y/ b9 J+ k- ?. O% Q3 F9 ^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) ?3 Y e, |4 y
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)
$ {& C$ R! }/ u$ h+ H; e) V" bset j" L' c* o% z; _; n
( j + 1)2 g9 ^, M7 a1 f7 l* o# L7 R( g6 x+ U; x
]
7 Q( P1 Q2 r* ^: o7 Xset [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 k5 ^' T+ k: n5 @; Y% Z/ W" F- h, W1 i: \1 h" ^! Y& O6 e
% S; G( l+ l! A- N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( t& D+ i+ c. `% ]% Z+ ~# J;;及时更新i对l的评价质量的评价" _8 P% Q, P3 M/ N( b7 C- a
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
L, [' q( A y# l3 e4 xset l (l + 1)7 q" a: i9 X: |9 G
]
( S/ L4 u' @( h' V! {6 Kend( A+ L2 C0 ` Z6 T' v% R6 |
4 @/ M, S6 Y2 h) E
to update-credibility-list
! M# A8 N! F Mlet i 02 F7 k( q0 d$ P/ m9 o) a* B3 C
while[i < people]
2 q) g8 m4 h% X4 `9 Z8 u: ][
1 H5 z5 u* {- o1 F9 `, U2 U! xlet j 0
9 k ?' m" g( J# v' e, a% c. Tlet note 0
8 u' u1 |6 ` X/ v) L% F1 p" m; {( Klet k 03 ]" r. g3 c% T+ ]* ? h
;;计作出过评价的邻居节点的数目8 u/ _3 n8 j9 d9 O
while[j < people]
7 O) K: Q. M* x[9 m/ y& Q, ~+ H# X% @: r3 q$ C% v: @
if (item j( [credibility] of turtle (i + 1)) != -1)
3 a! `+ w, Z8 R ~: E;;判断是否给本turtle的评价质量做出过评价的节点) o1 r, J2 I# ]. t0 }; L
[set note (note + item j ([credibility]of turtle (i + 1)))0 L; c! ~$ I8 n
;;*(exp (-(people - 2)))/(people - 2))]
8 h' _, m& a7 [set k (k + 1); ~) i D% M# z
]$ J- N. o+ q: @0 G( [3 u
set j (j + 1)
$ \% w) c2 e# w7 `], ]- r7 j% v9 W7 x
set note (note *(exp (- (1 / k)))/ k)
* b) Z; ?' b: S2 n7 }9 w z+ O3 pset credibility-list (replace-item i credibility-list note)$ ?+ Q1 R9 s1 }9 Y% ~+ s& p. @( u
set i (i + 1)
0 E: W+ c2 D# S6 W4 h+ ~( A' V# J& []: A$ d/ d" j- G* c* t- X
end1 f2 Z" u' n$ C ?
; q+ b- L5 s" K+ T
to update-global-reputation-list
* x5 F& [+ _- a- V9 {1 |1 ]$ ^1 Llet j 0- |$ x2 X; p2 ^: X
while[j < people]
( R2 T7 p4 g0 U[* r# @) H7 K) c: R! f
let new 0
" `- w8 V5 Y9 [7 b# Z$ E;;暂存新的一个全局声誉
& Q: `, Q( C I. A/ D) ylet i 0
4 e9 `' B/ H6 d1 \0 i4 j+ z' ilet sum-money 0
8 T* v5 Y: U( v, B1 s. Alet credibility-money 0
) n. D1 i% Q5 z6 F. M: {while [i < people]; C1 l" V/ [ K( ]8 u1 T( r6 Q
[# F. D, e0 i# ]+ Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) z- h" u4 S) ]+ L2 [& k9 D* Eset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' { w% s% l% Q: d, o
set i (i + 1)
' D3 ]6 S/ B% C ?- e |]+ B" D* n, e* S
let k 0" W' R0 @* g' F. g, p
let new1 0# K) \# W! |5 V5 R# M* u3 e& Z5 E
while [k < people]
% G. o" o; U0 [! O# g' t" k[1 {$ Q7 P' L* S! E1 i7 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)" d# u1 _5 m' j1 r" q' Z
set k (k + 1)
& |: K0 J% R3 G0 D1 U, K9 Y]: O# h+ d- q* f
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 ?- k6 y% l2 [- Iset global-reputation-list (replace-item j global-reputation-list new)( N+ r+ R' L1 Y
set j (j + 1)5 t. r. ~+ V- k& @ o. w
]
( M' Q" q8 g5 t& k9 r* Z1 j: Jend
; |$ W- O7 l5 z" R( G* B! k" y+ V3 T8 L6 w4 r; W# v& t* F! l7 c
9 w5 l; z; Y' x. B( T' j+ ?8 _' T
3 p* Z- S) r( X" c3 c/ x8 }2 g
to get-color. G1 ]4 G7 Z" j1 }+ D' X# n9 A+ A
) c' g$ Q0 M$ f9 y+ y, B) n
set color blue7 h5 N1 d( M8 W# `! D
end; W' a$ h3 E. J, R( k& ]3 A0 k
0 f: ?; @3 z3 J# V7 B2 \0 [+ @
to poll-class
- I/ d6 w. j4 @$ {( H; Z& e) @8 uend
8 ?- l" G/ r# G) v+ K
* i% g/ h/ y+ L, u/ t7 `to setup-plot1
* I, N& a- E. e6 \' D/ N2 F/ ^: Q1 l, D2 U$ f/ W! `# Y* ^
set-current-plot "Trends-of-Local-reputation"7 w! D3 R! N7 N6 k' _/ Z
0 H7 t7 `1 v: \0 f5 Oset-plot-x-range 0 xmax
) r4 X* R' S& W) s0 s& Y; U3 L! r8 N$ O2 {4 q# F+ S
set-plot-y-range 0.0 ymax
# A$ C2 K) J; }9 B( q. @1 oend6 T t$ Q# Z* r9 x% ~$ n
, M+ q) o7 ` f" K+ K3 A- p G$ N
to setup-plot23 C& i8 {3 w' u* H( l$ P8 _
4 [ l. \. E/ m9 F: iset-current-plot "Trends-of-global-reputation"+ D8 `# `) ?- k7 \) T3 u7 S1 k4 z
( V% {; R+ E8 b% i' `
set-plot-x-range 0 xmax. q* W2 f/ J# y0 {( X
& Y" y2 A0 @) ?: b4 ~
set-plot-y-range 0.0 ymax
, d! y \. n% Send1 `; M- C }) }% _
- o0 H* \. K2 Y( O0 H) o3 ~to setup-plot3* ]4 ^/ f3 q: I4 E8 p
! [( L5 q- q* r* C- j
set-current-plot "Trends-of-credibility"
7 D `" ~0 [0 X) f2 U
: Z- m! I9 A- P' k& R# E9 qset-plot-x-range 0 xmax
0 f1 E& n9 ~! G% q5 f d7 m) I
! l; _4 y6 U9 W* ?" v$ Xset-plot-y-range 0.0 ymax
& U$ d$ C' _3 V+ X' \& Gend
& T* s9 z, d6 u! ` z
1 v+ Q$ `0 i) h* }0 x) R# Hto do-plots8 D. s4 t: \9 U" f- _# H
set-current-plot "Trends-of-Local-reputation"
, [9 J9 u7 }, I8 i, ]5 Dset-current-plot-pen "Honest service"
& b+ z9 X# `& xend
8 h/ c* J- r; O, [. n9 R* _# P# M% X
[ 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
|