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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
9 p h% p* }5 dglobals[
g) U/ h' {! G* }) V& fxmax
% h3 v$ o' n6 |! D1 h2 G- j9 G6 J- \ymax5 _0 j, w& o3 }
global-reputation-list+ e5 p* W/ X8 n4 G2 q1 }6 P1 P
0 v, E& P; U. @4 b+ d5 D T;;每一个turtle的全局声誉都存在此LIST中
& E0 ]# c% j7 p$ }credibility-list! R8 k2 q- a6 A1 e& r" V
;;每一个turtle的评价可信度
5 ~( w$ a2 p% X1 i6 I5 U( X1 Fhonest-service
3 j6 \* I' A/ V; E- ]unhonest-service
! _* Y& v' O2 ^0 aoscillation
2 Q: {- f5 W* Q+ w& K7 Krand-dynamic
3 y5 C# F+ @) J. B3 i]
; M+ |5 R3 t% F; \ x$ N0 k% C+ b2 c& S
turtles-own[
$ m0 p2 |5 _& B' E* L) k Ptrade-record-all8 d4 e. j( t* T. [
;;a list of lists,由trade-record-one组成
2 z: T: B2 ]+ t e5 O3 T4 Qtrade-record-one4 {& H) u( F' \' _# W/ Y
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- L0 [ F( q; c B5 F6 u
8 \8 Y+ l, Z7 V! \2 _; F;;[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]]
1 H6 x' u" e0 g0 \/ |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]
; U! D8 ]$ b9 q8 E" acredibility-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list7 C! t1 Z% G+ Q
neighbor-total6 {* @* { E1 D0 @, V" H
;;记录该turtle的邻居节点的数目
2 @/ N. ^, x8 l6 ^6 `. Ttrade-time
: @* Y4 U) d# U. n$ T& m& _$ v;;当前发生交易的turtle的交易时间$ n+ Q( {$ |9 D4 a7 o$ a
appraise-give
" k2 n3 [& J D! \5 P( w;;当前发生交易时给出的评价
; S* A4 q2 {7 V# U1 uappraise-receive
1 `! |9 G+ ] D4 V;;当前发生交易时收到的评价6 |! j6 W" H7 R9 x7 u+ @/ K% f
appraise-time
( |& K7 B1 B6 ^* ^" ]5 S;;当前发生交易时的评价时间
0 M4 K* g6 R( E1 _: rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉9 i7 M$ `1 e4 R) @. g4 r
trade-times-total' C& n" t6 x* b2 W/ k+ l
;;与当前turtle的交易总次数" T2 `4 y( F+ z) }
trade-money-total5 [% u- J$ o8 r4 Y8 Q' C) L" O- x0 p. ^
;;与当前turtle的交易总金额
/ ` \" y; Z1 B4 Klocal-reputation5 q, D* w/ {9 U4 d
global-reputation
1 r$ {( P, W& k2 A# S% i( Ucredibility
6 s, |% O0 W8 p2 p) T;;评价可信度,每次交易后都需要更新
- b/ u9 B. i, }4 Tcredibility-all
' B/ [6 \" ^0 h$ B;;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
" t3 }6 P# Y1 z$ k/ q% A( y) L+ s/ v. 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
; E. a* j' e) d! _! l3 T0 A! kcredibility-one
$ F5 L* K& a S' \2 ^6 M;;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# i; l/ O/ [3 a0 i
global-proportion
% A2 a( |& U$ [" ]# b! gcustomer
f. a+ [7 z* ]" i3 N* Fcustomer-no# O* P* q' { q2 X
trust-ok
x" w$ p# A% T7 v" V! q( xtrade-record-one-len;;trade-record-one的长度" ^7 q1 i- `$ Z: ~9 N
]( m/ X/ q# Y9 ^ f# N7 u1 u7 \
9 L- J2 a% l. h- c;;setup procedure
) Z; y2 d# e* H+ S4 m% {# X# |
& ?& b% A+ g) Q9 cto setup
9 ^! C5 V- S8 u
7 j2 `" u6 z. H# Lca" U. K$ Q4 d0 k- `7 I- z
' A7 s, x( y- r' q) t" x* G" uinitialize-settings/ [) N, e3 o5 J
' S. V3 C E! x' S7 M" s
crt people [setup-turtles]
7 _) f- d. W( e: h$ Q3 f t8 E0 V( M" J5 Z
reset-timer( }5 v, z& p4 U3 d4 n+ I" d
* q, b" I& O& r4 n. xpoll-class$ h" S" q; d/ c7 R
7 P7 S9 G6 i& m
setup-plots- I6 d* Q- H9 m
5 m+ @4 Q% a6 q. f5 ]$ {) Xdo-plots1 n/ n) ]: Z2 p. E- @9 P
end$ m) K. X$ Z, u8 ~& C/ Y
9 r, B$ L5 G4 u) n* }# l
to initialize-settings0 S) E& k" s% a+ f* f; u
! `3 v- I% N; V. j$ d* U
set global-reputation-list []
% ^4 Y+ d" W) K! d& D3 F; |6 u! d- E7 f6 a0 p B
set credibility-list n-values people [0.5]
' M* b( w3 B9 f! y- [& d
|3 M% e8 ~$ `set honest-service 07 x! s3 g9 R1 J# ?5 F- F
1 S8 S2 a$ c# b% l5 ~0 T
set unhonest-service 0
$ O3 J% Q' `1 T _6 A/ k6 F( z! Z
set oscillation 0
" @ D8 l, H/ J' r* ]; h+ @8 i `/ c( R' a, k. x2 F( x
set rand-dynamic 0
+ f. S7 y/ B! \, E9 w7 J7 s0 Z. f/ Gend
7 k6 N/ ^% ~5 q v" `# J% v( m/ L2 a' p+ [. O! n; a
to setup-turtles
9 s) m; t2 ^. v4 P, \" p* cset shape "person"6 `6 y, R# u5 A6 a
setxy random-xcor random-ycor" H; e9 D2 P3 z! k7 L% M
set trade-record-one []
" L; k! N4 n' \4 a6 d9 p \
# H$ i. z& S& ~+ ]9 E' W$ a, Aset trade-record-all n-values people [(list (? + 1) 0 0)] ' g0 g$ Z, c& c, A" t
0 C, e6 `7 m! t6 S' R# {
set trade-record-current []
5 [2 N* }, x F8 p. M3 y$ W2 Cset credibility-receive []
9 q, X; t; Y! A: L' s* E1 wset local-reputation 0.5) F7 P$ b; J8 _ W z* q: L
set neighbor-total 0
Q. c1 e0 @+ [3 a/ _. I& Yset trade-times-total 09 T+ M5 b: \# ]& [9 j) o
set trade-money-total 0& Z' K- ]+ b. ~ n, e3 c& }5 g
set customer nobody
' I4 a3 g( g$ c. cset credibility-all n-values people [creat-credibility]" `9 d/ _8 ~. n. ^7 V
set credibility n-values people [-1]2 _, L$ k+ j" K3 g
get-color3 c$ E0 F+ }) k
. [) t( q5 `2 h0 S: P
end/ N" `% J+ o# Q* [
/ Q; k" n% y- ]7 a6 R' q8 a
to-report creat-credibility
e$ C& ?' s' O7 L& r- greport n-values people [0.5]
& Q# T/ K7 G ^, i5 D% E( qend, W. |2 r. e% B
0 X- ?, k$ c0 A# P/ f0 }
to setup-plots9 @: F' @# b8 y: _& g G7 B6 [; S
2 r+ l7 k: d5 ?1 L2 l$ b
set xmax 30! D8 d5 N! Q! Q4 V3 a
" K2 D) _3 p9 _- Y; t O
set ymax 1.0" z% I# ]5 W3 e# Y# u: ~
; q+ N7 x. z; `2 G: E, o: ~0 e
clear-all-plots
( K- D8 O$ S/ h+ ~3 t x3 d; j% z6 \: V) \: S8 W7 E# G- R! i
setup-plot1
# i1 }& G! B% \8 x
( B% t0 r4 f3 {( ?- jsetup-plot2
. D7 c: @ @0 t1 e9 K1 K m/ p. K2 T6 o# e; [9 e: v. ]: S4 i
setup-plot3% |1 |( K8 n7 e4 I
end
. V' B- H) J) w8 c; @( G7 Q3 ~/ L
;;run time procedures
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to go
( K$ ~1 i$ X1 X+ I7 f8 m" ^
5 d9 ~& f% q) Q! _8 g2 J% Eask turtles [do-business]! f' I2 C) A1 B( T+ M# h# c
end
, p" M2 g5 ]5 ?9 l, J5 T; S, ]
, ?. x( l ?4 f. Z6 gto do-business
9 |: M, C$ c/ _0 `+ g) W& P8 l* Z& @6 Z; h% j: D
9 j: `# h/ ~ @! n
rt random 360
. g8 f2 ~9 y" t, N/ |3 w# d7 M' ?" _& K1 r: [( d3 a) d
fd 17 {5 y0 _1 n6 V
- F# G8 F& J# ?' [ifelse(other turtles-here != nobody)[7 A7 S+ @ ]$ c6 H
6 R6 b5 {6 I; p' y: p
set customer one-of other turtles-here
. [ i2 G, Y1 S2 _
$ N7 ~) ?& ]/ N L% U" h! |;; set [customer] of customer myself, Z& ?8 v! I% w; s9 j8 `0 o6 X
) a4 ]( f4 ]4 ]& n/ l" D/ }set [trade-record-one] of self item (([who] of customer) - 1): L8 k: @0 Y0 F
[trade-record-all]of self( C0 D9 e! s9 w
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 v- B- v, [, B4 t+ h! K, m
3 L( j2 Y+ I, h, y
set [trade-record-one] of customer item (([who] of self) - 1)
) p% W) \- s, C _[trade-record-all]of customer1 W- ?; E7 G: {) b
0 j9 S! e5 k/ \. s' N
set [trade-record-one-len] of self length [trade-record-one] of self2 e" T0 q5 V% J+ A+ p7 b
4 l7 n% f' h& m6 A- \1 g; m6 O2 Kset trade-record-current( list (timer) (random money-upper-limit))0 j' {9 t# Z n z! \
! n: M# K' p) Z, B9 [5 pask self [do-trust]
; F2 `% B# N2 `8 C2 b" l+ S;;先求i对j的信任度
. P0 N# d# A1 G$ \# @+ U/ S; v5 A7 ~6 ?, X0 r
if ([trust-ok] of self)
% r3 |6 g( u1 t8 h. d' S;;根据i对j的信任度来决定是否与j进行交易[
- X8 I, D+ Z+ D) b& h" O' {ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* B0 _& l4 i* o2 c' I! s/ S
# C' |4 z5 g6 f[) m u/ ?) V- k7 A0 ~, M
7 h o' }2 l) K# x. ~
do-trade9 J/ ~* u/ n# P% b; P: o4 r1 l$ Q, E5 K
8 r2 e( O6 `* C* Hupdate-credibility-ijl1 l1 _4 I& Y2 |- h) {% m1 j& ?, j
% } |$ _; |' Y4 @ X) {* [update-credibility-list
8 z. P6 j7 B: m* }6 O+ |" O5 v: k8 g2 i5 G! ]
: y% _) w# g# ]
update-global-reputation-list
9 Y1 ?& P" k& g
8 Z0 J, R" B: l( I$ B: bpoll-class+ a/ f- e& ?' s5 L) o, v+ y9 i
2 u% U3 Y, V# hget-color
0 z" N+ J8 k7 F, U) @
- z% [" M c$ P' s: f]]1 e9 t$ l! Y5 I6 o: j$ d
9 T. [9 k0 y8 G4 _, w+ t1 s' f;;如果所得的信任度满足条件,则进行交易
2 u* [3 P: G6 ?& m5 K* y7 {1 H% U) i
[5 a. z) q7 n8 W( d! [ I
$ _$ r1 M0 C* ]; {8 [ u4 k/ Y& C u
rt random 360
3 b" @3 X& J4 O* e8 f8 \3 ` ~+ x' R
* `& P+ r/ v$ S6 B& Yfd 11 h0 X$ I5 l* F# ]1 |
8 d, l7 E0 {+ k; `. k' s' ~' U# N+ \
]" H/ H- C& g* X& {2 J N. k- b
3 L3 [( v. w4 t3 K
end C2 k: F: a2 ^1 ~# c9 `, E2 W
2 _, v2 e# r1 k; Q/ z& N: ^7 ]
to do-trust
; ~3 k( l# A7 V$ c2 c' @' kset trust-ok False7 D) j& Z3 H5 T k: w, N1 B5 r
5 W) @# J) d4 @2 d% Z' [/ U* d# I' q7 c
let max-trade-times 0+ v, M2 b! \4 S- h9 }+ b2 E' G& }
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* Y/ d1 c/ D# Z- Hlet max-trade-money 0
! a) ~- {* j+ H# a4 aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 N1 H; w9 v9 Q% E' q' V! B6 _
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 Y, i- R' c# M0 C* {1 g% ?8 l; b4 ~! l, H w: ]
6 G' M: m5 N# Q0 ~. ~$ i/ C" G( Q
get-global-proportion
0 _ n# C, ^9 i2 v7 j0 Plet trust-value
3 U5 c" B( r0 o6 h4 U! Q. nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
# t/ `; |$ U# J; ^( @, {6 {if(trust-value > trade-trust-value)
# w$ [! A1 t' ~$ A7 ][set trust-ok true]
* ^- I& I( h3 r; T9 Z2 O) {, V" dend
8 y, F; V5 s: L" Y+ s; {( {9 ^! z6 c0 T b( D" g9 [: {
to get-global-proportion& u3 C: N- k( u, u. G( P& q
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 b6 X* v+ o! P' P* h8 |5 c
[set global-proportion 0]8 Z7 l0 B- k2 R. J
[let i 0$ @9 s% g2 G- K( \! ~
let sum-money 0% x$ z6 R. J+ Y6 r1 x! b) k
while[ i < people]
5 [. `0 T! x( d Y* q( z[
. N% s, W( V2 v3 v: jif( length (item i- e) Z/ q1 [# F: m
[trade-record-all] of customer) > 3 )" r# a- B3 f6 G9 Z( c, I7 b
[
* x4 ?# r( {& i& z2 Z+ b$ Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" x0 a! Z8 O5 a0 L9 P+ Q]& ?7 W) |) }4 O: Q3 ^5 i
]# T8 X: ~; v, T6 |
let j 0
7 r5 \, I/ h' plet note 0 f4 t1 N; ]8 s* ~4 Q2 P) S/ J
while[ j < people]" w1 \7 v1 d! n! A" k/ ~
[
$ k1 Y1 v4 P( v1 w1 rif( length (item i
2 }" {. S. T* L[trade-record-all] of customer) > 3 )6 D! ?& ]1 R- S$ f
[
. X8 `5 P; g" Z! H. z" Nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 w' K: l$ |/ d I7 y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 k% }/ t5 |3 c2 X) y6 D' ]
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: S A. s! w. P" v E2 }" p6 v
]
, W) @. v( T. H+ O" M]/ g n' f$ d# C8 u! B5 Y
set global-proportion note, u3 h) K$ ~' U6 N) l; q
]& f0 o' J4 h; z9 v+ o
end7 y& }6 I2 S# R/ S
2 m7 H1 }) J5 D( |8 m8 q( F, o {to do-trade
# ?* _, ?! D& U;;这个过程实际上是给双方作出评价的过程
# p# i' X( w3 d' `+ m; xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 C" \" ]6 n3 W# aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ g8 M2 E3 A' ^) f, Z. _/ u
set trade-record-current lput(timer) trade-record-current
% e0 ?# j1 q3 K& a3 p7 R;;评价时间
8 u" n6 _0 z4 ?. U' H" H# d4 Uask myself [
# ^* r& U& B8 vupdate-local-reputation# {# C+ W+ B$ g2 d- m$ v/ d; A2 f9 [
set trade-record-current lput([local-reputation] of myself) trade-record-current& O3 d f4 F- h, R. g" I* ?
]) M8 i* u) e& x0 G7 M* h: z- O
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! Y4 r9 L- k0 F9 S. q6 r3 Y
;;将此次交易的记录加入到trade-record-one中
6 Q. ]4 n# Y; w% L2 c/ T9 a' r/ j' fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 v3 t, G, c! h) I Olet note (item 2 trade-record-current )& T/ _( @8 {& }$ c" j
set trade-record-current
/ m: B- O7 T. M0 m$ w3 r1 }(replace-item 2 trade-record-current (item 3 trade-record-current))
. a x8 l% {; W. r4 Z3 R/ fset trade-record-current
1 x, n% b9 L- w" _2 T% a+ y(replace-item 3 trade-record-current note)% Q0 S0 L5 c% d
2 g* o1 T; D: ^' X' [! p8 j8 a7 {, F8 J
ask customer [0 \3 [: k6 I- u9 ~
update-local-reputation% v& G+ y1 ~) X; Y% O
set trade-record-current1 v% y4 Y3 C$ U9 G6 V* i! Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % F4 W! o4 _* ?5 A4 H Z
]
+ W- b& g) g! f8 @) d
- F: E, u* |/ `6 W3 R/ h, S' [: W5 V9 @
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ Z* s0 a0 e5 k& ?( `( A8 W3 \; z2 F7 k
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& R7 R1 ? T2 i7 ?* a- y; J;;将此次交易的记录加入到customer的trade-record-all中) O" K/ v$ a1 b) a% R) t; f
end
* _" E3 ?& m$ h6 L8 [
% S& n# N3 F: _to update-local-reputation" h; R% l, \$ e4 y0 \1 m7 i
set [trade-record-one-len] of myself length [trade-record-one] of myself, A I' n# {: `" Q5 z6 ~
7 U+ [6 ?1 l7 h
2 ~/ w. G- D8 [
;;if [trade-record-one-len] of myself > 3
, V {9 I0 D- v- S. mupdate-neighbor-total2 i( k9 Y; n8 Y% C) ^: P: x7 @
;;更新邻居节点的数目,在此进行
" g1 e { K) E# G$ `let i 3
) X1 l! ~* |& y H" m& Y9 A" Blet sum-time 03 f9 p9 T0 Y" Q+ C3 ]# K( Q( |
while[i < [trade-record-one-len] of myself]
& W& ?2 A+ |; R9 x( X9 G4 L& E[
9 ~4 Z( \3 y1 R9 vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) @6 F; n" x) G; T" J8 X5 j
set i
! e( b9 M$ z( ]: ^+ R4 o$ x0 Q( i + 1)" F1 q# D; Q8 S2 R! _0 ^: n. I9 k
]
3 F9 j G8 c* ]8 p4 v# I- hlet j 3/ s/ x; [5 v8 `! b! L" T. ?
let sum-money 0
3 H# I# @8 E: H! _! O8 J& w! ]while[j < [trade-record-one-len] of myself]
3 L' O7 a h( E' x6 l I[
" A. R. p* b9 h+ i- Eset 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+ [7 }5 Q1 @8 M/ c/ h
set j
5 q2 T5 g' c9 `( x7 ^* y2 a3 X( j + 1)
; [, Z+ l% y* i8 g]; [3 O, e" W2 o5 R1 i8 Q
let k 3, t. E# x( A7 k4 u& l
let power 0) D8 v3 }! I3 W' X5 K5 k2 p
let local 0) Q0 n6 ]3 U2 g/ G
while [k <[trade-record-one-len] of myself]! }$ f3 Y5 s; B5 ~6 S* s
[) Z$ m0 {2 n& q" _
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)
8 O1 r Q! `" F' bset k (k + 1)2 ~' v6 z' U4 B# n
]
5 k/ j: A4 `$ j9 Lset [local-reputation] of myself (local)4 k! q9 J5 N/ \7 R/ X, v* A3 _
end$ u# z" l8 E2 v+ v
2 X# k! C$ H* x9 B# Eto update-neighbor-total$ ^- C; j' U% Q3 M
/ I% x @7 X& S. Eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. e( X' l4 ?) G
& r b% y$ h" o g# Y0 \# h8 ^$ C$ K
end
; _, F7 l2 z' H
5 h6 {, B2 _# L( i! f/ U! z- Xto update-credibility-ijl
4 m( L; R ?: p+ [+ B8 v3 R5 n ^. a6 W6 X* B2 T4 K+ `% Z8 V. U
;;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. x' p0 O( g4 S4 ~0 b& T4 _# flet l 08 f) b" y) G$ k7 F& a) {
while[ l < people ]
. U# E* d% a2 e+ u2 h) P7 T, S;;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* p4 w/ [" f8 l1 e
[
- } s7 \; A: @6 X) q7 clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ ^# G+ m: i8 N6 V- C
if (trade-record-one-j-l-len > 3)- f& y( Z4 J9 p2 ] L1 }( n
[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
$ _8 Q% H& \, s* I3 V3 wlet i 35 B( L' a7 w) W: a: S, C
let sum-time 0: `: Y3 l3 B8 f, ~" c; a
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
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( i + 1)6 @+ S4 C5 c5 e/ O* G, q
]* u( z! j' p& D/ B2 w) T
let credibility-i-j-l 04 P: q6 ~$ Y: ?- `# Y( A
;;i评价(j对jl的评价)
) ~2 L( S/ E3 } glet j 31 U0 `, W$ C! c" }# z" R9 }
let k 4/ w% L/ `8 r! G$ @: m7 M& y
while[j < trade-record-one-len]
* }9 w; o/ B! d( n. q! @[2 A4 f# V& ]4 X$ K' q& i
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
$ \+ Z# r6 ^- v# w: [0 Qset 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)9 w8 S0 j* [; t
set j
# K! n, s1 i. o6 Z( j + 1)
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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 ))
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! R; H5 e! f4 p* _) _ Wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 t2 G, t5 O5 o2 ^. S& D! h;;及时更新i对l的评价质量的评价
5 P2 u4 \. ^# k) D7 w. D$ v8 bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' N; f: {' W- B( V) t8 M' Z: {, c
set l (l + 1); q4 B; P8 h2 Q6 i
]. ^& P4 h$ |3 @, m |
end
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to update-credibility-list
8 m( ]# g% V- V9 A( C: n) ~3 wlet i 0
/ l+ Y/ r" R4 g- M Iwhile[i < people]
6 p/ ^% _4 Q) |) R! i& |8 O[
4 v* ]- J6 h9 c1 xlet j 0
$ ]8 E* T" D' @& ylet note 0
+ ~0 f$ T) t" B! n9 blet k 0
3 Z1 x3 e+ \; U- x;;计作出过评价的邻居节点的数目
- t. c# D6 w, n# I9 K- c- Iwhile[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
4 x v. H7 ^* A8 N# P/ s' s;;判断是否给本turtle的评价质量做出过评价的节点0 L; c( ^0 U* V V5 M
[set note (note + item j ([credibility]of turtle (i + 1)))+ l. H3 }. w+ }) ]$ @4 d
;;*(exp (-(people - 2)))/(people - 2))]+ o0 W' q5 P4 [) h ?
set k (k + 1)
7 F3 v: ?7 ^9 I t4 N2 y]
6 y- r; M5 K( Z. k3 k% Xset j (j + 1)8 B8 r+ G- G0 S* d( J" p
]
3 s1 J% p* A+ O6 ?; E/ j/ Fset note (note *(exp (- (1 / k)))/ k)" `. H i/ P+ Y$ `/ x8 _" ?/ d8 B
set credibility-list (replace-item i credibility-list note)
- a$ Q, m1 c/ Z& m4 O7 X4 Wset i (i + 1)
) x+ R5 l: ^2 t]
8 }% [1 h3 \! [% Z6 p( |end
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to update-global-reputation-list" y2 e$ f) ]# `! A& P6 o
let j 04 H1 e/ j( f9 R' n
while[j < people]
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- X b: g% V. P$ S& P- ?let new 0
4 f; N, L( H3 d8 P;;暂存新的一个全局声誉
6 {6 M" \" n! a: O8 G, zlet i 01 b: D, g6 y- r7 h" R$ u
let sum-money 0
+ J/ s. _; Y+ ^+ B: B0 Y: h6 h6 Ilet credibility-money 0
1 n/ U6 X4 w0 Q9 ]& gwhile [i < people], f7 [$ A" g+ Y4 T+ w* N/ b, R
[: f% w9 G6 Q& H/ s
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& U b [7 S2 u. U
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 P1 ~% _0 L( T; S0 F4 I
set i (i + 1)
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let k 0
6 @; `& |+ n; z! p7 Llet new1 0
: [+ y) o$ X9 e) Y! |4 b+ Ewhile [k < people]
3 k7 E1 U) L2 Q, B[: s3 n }4 E- B L3 @1 P+ q# j
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)- ^# Q9 f+ s$ n, w# r
set k (k + 1)
1 q3 `4 l6 J: Z- \# G3 h7 w]
3 ^9 u/ U/ \' |: g) xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
. f& |+ y) C3 u: h+ Wset global-reputation-list (replace-item j global-reputation-list new)1 h. T2 J- {( U! A# h- l
set j (j + 1)
) U- k1 ^# r* T/ }; }]
4 K* I; D4 V: g( Vend" F+ \$ l# X6 J# l7 X6 C! C* c+ Y
a2 K1 |) ^' h5 n
) B7 c# n/ B$ S( g; |
6 K5 d! o6 B% ^5 P" c8 R/ V/ sto get-color3 ^- T! `4 M4 E9 T) Z5 }
3 b: l/ g0 N% F: i! i$ e4 P4 lset color blue
4 Y( q3 d" E. g# ?0 y1 g9 Qend
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K; J2 X8 v) y5 [4 Y6 Zto poll-class; q; M3 d2 t" Z4 @7 V7 r7 U
end
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. j/ d% V G+ z0 Vto setup-plot1
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+ j, R- T% }: a9 q. B5 Kset-current-plot "Trends-of-Local-reputation"2 T6 s0 v! s. x9 r2 b0 F$ z
. F/ S4 m F6 {5 V- H) G$ Tset-plot-x-range 0 xmax9 @% ]0 r, Y j/ l
( ~( j9 e) L3 q1 p }
set-plot-y-range 0.0 ymax
) k( \7 U' `" x5 [$ y0 K9 n9 z9 wend
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to setup-plot2. E* r3 [& _4 D& s
9 v' g$ H+ t7 s/ u5 J( Q5 yset-current-plot "Trends-of-global-reputation"; n0 N& }* _2 B& ?& H
1 G5 H% n5 f, C6 N. ? eset-plot-x-range 0 xmax
/ b4 |# k, B) i9 q) R, v( d3 h; P, Z6 F P# Z- Y
set-plot-y-range 0.0 ymax
+ l* D4 N; {$ R; rend
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to setup-plot3 `0 V; p6 P# U) d5 u3 V2 R
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set-current-plot "Trends-of-credibility"7 e% X0 p% K8 T
- m+ P0 A5 @( C1 t& K; r
set-plot-x-range 0 xmax
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2 H+ l5 q- G& N+ H( Q/ {* Oset-plot-y-range 0.0 ymax, c" |" I5 d, [* O/ Z$ a' e
end
. x& j0 [! U: a; `3 x+ z
; o5 J& ]+ O+ pto do-plots, u9 U2 U% w2 S) ]
set-current-plot "Trends-of-Local-reputation"
) M- n2 J3 F* g$ b' cset-current-plot-pen "Honest service"5 f/ O7 z1 \8 I( a7 L3 a+ \: R
end& p% W0 Z& L: _/ m7 y
. Y: \% n3 z: J; Z( w: \8 D0 Y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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