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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
3 X5 X3 b( r% O2 x# ^9 Zglobals[
) C' K3 A3 V' W: m5 Q" Oxmax( h$ u A! X: R3 U) x# @
ymax) ?( H/ }: U/ }4 T [ ]
global-reputation-list
; z& Z( F/ Q8 K2 B* _" ]+ f4 d- L7 }
;;每一个turtle的全局声誉都存在此LIST中. N/ y3 ~6 z1 u
credibility-list$ z& J# M5 T* ~; {! ~
;;每一个turtle的评价可信度' w6 A0 B, G5 ? k
honest-service
- M; C4 r, \$ j3 nunhonest-service
0 E$ V' v# ~3 D2 o: f6 v0 Yoscillation
0 m( d/ O9 }' q+ R) U: b5 Z9 Nrand-dynamic3 u9 F/ K* R9 }7 l
]4 _) b( p+ t0 w2 m4 K; ~. M; S
7 }7 @: j2 Z% xturtles-own[
: \; o# C+ N c$ Z) `$ L, Itrade-record-all
! Q# v( H* g3 H3 \;;a list of lists,由trade-record-one组成- Y" X0 e* d1 ^
trade-record-one
& j7 b( E! a) k% I/ [( O9 I/ s;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% E+ ]1 B3 f& @( Z& Y- b6 G, e
/ m! z4 Z' ?* U; u. Z;;[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]]
2 w. }. ~; e* L( k) h0 ?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]
: m/ o( W6 M2 r3 Ccredibility-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& O8 G+ b" s1 J# W
neighbor-total
: {) P+ B+ P9 Z% P+ N9 C1 {+ y' ?4 @;;记录该turtle的邻居节点的数目% E; ^/ H* @& T/ ^; i; P
trade-time
! S6 k# u$ R; L9 _;;当前发生交易的turtle的交易时间0 G! R1 c9 ~9 ~# ?
appraise-give% ~, G7 U: q' |2 B$ @" v
;;当前发生交易时给出的评价
1 x$ g9 |3 V- T1 Happraise-receive
* V7 _& p' q$ f+ F; `7 E A;;当前发生交易时收到的评价3 X9 k9 t( E7 [& K3 t! f0 X$ E: |' S6 c
appraise-time
" o4 Q6 E, f3 B3 U;;当前发生交易时的评价时间
# {/ I. }6 m" R8 k' D' Llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
! s& Y$ _; j' U4 V5 F. W$ D/ |2 atrade-times-total
7 }: i! m7 l9 e0 R0 O' q3 k7 C;;与当前turtle的交易总次数
' N. w2 [9 P0 C! _trade-money-total
- I- o+ N. h- w6 u" t;;与当前turtle的交易总金额
& u- A5 v; L+ p% W/ olocal-reputation
5 j/ {1 G+ u4 c; Y' y: p, @global-reputation
7 a0 H7 W- E8 X% \: W! V& Rcredibility
4 r6 L4 K* G/ B% P9 u;;评价可信度,每次交易后都需要更新
^5 ?; P/ x- Q- Ocredibility-all* t# i" X1 F" I9 a3 M
;;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
3 t$ L {- X& T( O3 i3 s% G$ s% N
" m& l8 ?2 f" B;;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
1 H1 n% r% Z, F" T1 l, T, g O% Icredibility-one' I& ~: Q" i2 n) _
;;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
5 J. ]" h3 L9 U0 w$ {: t% Eglobal-proportion
) X" M$ H1 G1 H4 y' vcustomer) H/ O0 | @+ V* ^) r
customer-no+ c4 q: Y+ r7 Q2 ^+ I; P
trust-ok5 Y* g8 d# u+ D# s( V( }) X
trade-record-one-len;;trade-record-one的长度) y$ I6 q, d- H7 M# d6 N
]/ M: \, [, z% C/ u7 H
% C. x# e3 V9 B+ D) m0 n
;;setup procedure; P8 m- h3 k) b6 l
, g6 G) t7 s5 D. D% Y# e, qto setup
: E' h# |4 @0 m9 J8 t2 `9 R# E5 S
: X, N& m* S3 t6 \ca
9 x' J' V' I8 Q5 r$ v" ]9 P3 Z: L8 V. H8 R; W- ?3 y
initialize-settings5 J+ _* @+ q* e/ o- {% o7 O
7 B6 f+ U& g1 t9 g, W7 a8 N
crt people [setup-turtles]
1 u# H# k* P4 r
, M, Z7 Y1 `* X' Z7 ~5 Wreset-timer4 m: w* S- l8 A% ]( \: F
. P" i7 y- o/ R: m& M( f2 n
poll-class$ |$ }) z! `" T5 T( `+ h' |
* j9 @+ j- ^; K9 y+ R6 P3 b* Msetup-plots* l! t: m: D; J+ @+ R7 z
s. Y4 P1 i" }# @+ j0 l4 Q
do-plots
: q8 l: |6 u; k$ zend8 v4 h+ V/ o7 u g" g- H1 n
3 s6 ]! y# j" y4 M: ?to initialize-settings0 V A V1 O5 {, q
2 q9 ]# d, }% Q
set global-reputation-list []" d% ^" t2 X- u, }) j
$ |7 ]9 o9 ?) X* ^
set credibility-list n-values people [0.5]( U) w/ D% @3 I3 l8 {
3 h; X, w+ N- c4 o
set honest-service 0
l6 e0 f0 ~" G6 K& f8 O+ w3 g ~! U% l1 Q; G- |
set unhonest-service 0. q. q/ I' K- O+ r! O% K6 R! v
+ i7 I9 t* W ^! N/ ?
set oscillation 0
. h( t9 n" x" X1 d1 ?2 P7 G- K; z# K0 d% Q+ |2 D, q
set rand-dynamic 0
; f/ M1 O" T% F* H8 G% p+ lend
% X! v3 z$ y/ S) R3 P* C3 w5 F3 [; i! \
to setup-turtles
' S8 h& s8 o7 W6 q) b8 I2 q5 c- \set shape "person"3 Z6 z& H1 \% Q! {- E; Y9 x3 o
setxy random-xcor random-ycor: {1 C3 g7 T7 t1 r; W1 m _7 T
set trade-record-one []
7 k! [, u1 A7 [) N' X- W# a
% j0 U5 S' H8 r# ]set trade-record-all n-values people [(list (? + 1) 0 0)] 5 w/ s6 x4 V* D+ J' @- t
+ H* g% p% R8 V( k
set trade-record-current []" `) s5 c, {7 d3 h: w/ Z" X
set credibility-receive []
% k; B1 ^- m; ~# l) D2 ?set local-reputation 0.5
. a# t* q; J4 V2 Q- w. k, Yset neighbor-total 0
5 g: ?, Z$ g+ |) J) U* C% fset trade-times-total 0
# D r: o' t9 W5 i i$ O( Wset trade-money-total 0% r0 o3 R1 y7 m2 }. q
set customer nobody7 g( S6 P9 a2 i! \
set credibility-all n-values people [creat-credibility]( L) A8 G. G1 m* v5 e% ^
set credibility n-values people [-1]/ `/ _3 k& E6 l
get-color8 y1 B* o+ k; K0 f5 Q$ j
0 F- E# }9 A3 L* J8 K" q k: ~7 }+ w, l
end+ P9 U6 O+ x& ~) A4 E% P+ x
" X/ p- D" p) G& K! ^+ J: i
to-report creat-credibility
+ M; o' s, z/ ?report n-values people [0.5]8 h& k2 O* F$ h- }& U
end6 C, Q+ v. S1 S# x
/ e ], D, Q! G" N9 n3 T$ ]+ `to setup-plots
1 C& ^, Q; B1 }
6 H/ ~4 g x) A) ~# D- o6 Uset xmax 302 `4 A% I- i9 {4 E6 V$ K- g! Y
1 s9 O8 x2 F/ a: [) o' Gset ymax 1.09 d% }! t! x+ a# e
- A: [. o6 b) \5 j( x. iclear-all-plots
: O; S8 S: N# H/ q
' L- A3 J3 W0 I. Psetup-plot1/ J# E9 o" q/ V6 o6 B
1 t. Z+ u! V% G/ V6 Q! ~5 p0 Bsetup-plot2( T7 K0 R: G# j; {- c
- N4 W& P, ~ n2 G/ K% s. E
setup-plot3 M. G0 r+ J! I7 n& L
end
# u, J7 C+ d- Y0 b- I3 |. N/ }
6 W- f7 x6 X+ L: h;;run time procedures
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to go
. K& |0 F. k' j# v0 C: k/ w! z7 z0 P8 E# E
ask turtles [do-business]& ?4 ^1 t( C2 Z9 f6 z& C. R
end( i$ Z7 b0 T% B1 N
5 N/ ?) U1 `9 l2 u9 u& z" {
to do-business
! j1 p3 m0 S7 [! s8 S4 E( r9 R' x/ q" k9 f# m, E% q4 \
3 n7 n6 u2 o1 wrt random 360' ]9 D R) \0 ~) X/ h
5 z. ], V$ m. Z8 l( hfd 1) q+ ]5 u0 H' k; [% f2 K" n& y
+ V2 X4 N4 @* k; oifelse(other turtles-here != nobody)[
, |* P! A) o3 v& A) |; b8 \& p( ?, }5 u6 \& ?
set customer one-of other turtles-here3 ?" m D c: T* ]7 S
5 V. M, Y) G. T- k( z
;; set [customer] of customer myself
+ y, \0 B, a3 W8 `- \6 N! r7 E& d( Z5 ^4 l6 P
set [trade-record-one] of self item (([who] of customer) - 1)/ M# T; H& `$ Y& @+ g' L% T
[trade-record-all]of self& i" c4 ~* I. K
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) F6 k5 M( a/ P9 s4 X% [. p; Z3 C$ r' A" R7 R
set [trade-record-one] of customer item (([who] of self) - 1) I4 L; c% {# z6 V/ ^+ v" B
[trade-record-all]of customer+ ^6 o. ?; g+ {( ^3 E" ^
/ o* p; ^! z2 N# m, H
set [trade-record-one-len] of self length [trade-record-one] of self
5 r$ a6 x8 l* x, y0 z5 ~5 |0 b& A/ R' a( m6 O
set trade-record-current( list (timer) (random money-upper-limit))7 _6 m8 h- Y# X% [3 @) x9 n
, m2 h9 N% W& w Pask self [do-trust]
0 j% W# ^4 _& X;;先求i对j的信任度# A! i' J/ V- g4 W
b _ J; {* U+ ^- _if ([trust-ok] of self)8 D. l. b( w0 R! I, t
;;根据i对j的信任度来决定是否与j进行交易[
0 J, x3 f! C6 P+ y# Gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
- B4 [. Z& d- C) M$ U! v3 o; D/ A- E' i# x9 ~: |+ Q* F' k
[
# p1 a# k( g* c1 o8 s" ^( D
$ E; i5 ? U' |' W0 X+ edo-trade9 |: N& ?" O+ o5 k* p/ l( g, `
& @ V5 I i: T# c/ B, Iupdate-credibility-ijl
* a' a" }8 |: l1 U$ \" i! n
4 h# P( T# w7 E7 @update-credibility-list9 D+ X. P2 R5 y: ~
! d& f7 M' r: k5 l8 t: h& o
7 d( t3 S- I4 a- |1 x7 p) Dupdate-global-reputation-list
+ |! q4 g: `1 Y% g0 V. A/ o1 Q; ~( q6 E7 s* p' q/ Y: M7 K
poll-class: k+ P5 z$ X2 |# E' R6 q6 ~6 A
# w2 _% ~+ q1 D% ]: R) u
get-color. p' ~4 ?- o- A
( C( K: N7 U, @! w8 M* E]]5 \" Q$ `( i" `, O5 D, C
$ l' j/ M8 z$ K( X& a6 b/ {
;;如果所得的信任度满足条件,则进行交易
6 r& I" P2 ?) @, ], I c* e+ C5 R
[
! s$ m9 p7 a7 X: S4 I, B, k$ |7 L$ `/ x
rt random 360
6 C4 m9 F# X+ [% |" }' u7 x1 m" z5 T: D2 Z8 f) W
fd 16 d" s) K; D/ P/ B; ?3 E1 X; P' S, L
6 `$ G' y2 g* w& R
]
: y3 a! e7 l* |- w+ j+ e c' A% F! ]5 @8 j! \7 \
end
" a+ n0 d1 i7 {! M) C- a- p! f. ?! Q" H
to do-trust 2 x1 N( S: |) F: i2 O! c. g! z
set trust-ok False3 M' U, u( d6 ]2 w4 s
% D* C4 l. u |" R! {. o) ^7 F5 w" t% i9 N" @ w" y' i! j1 p, _' R
let max-trade-times 04 C; M; {3 H) Q- i
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: \2 R# r2 C8 N; ?/ X* rlet max-trade-money 00 K* E2 e. g( [9 D; q w6 r# K
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 m+ ? b+ r: G! H9 @( P1 e7 R/ Rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- A3 i3 K, o6 }5 s6 m
# K+ |. f% _ f3 ^$ {9 k y5 A, j- _7 b- F% y$ R$ D! Q
get-global-proportion/ j' e. f3 t) @
let trust-value# N4 y* ~- T# [7 Z" V0 J3 V
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)' n- Y: N' V6 s0 e' H q, r
if(trust-value > trade-trust-value)6 r3 [- I2 [* D, I; ^- f
[set trust-ok true]
1 \' P8 l$ k: c- Vend
3 F7 _' y, t. ~1 }
2 d* d1 }1 a. N5 Y9 s( S- C; I8 uto get-global-proportion
5 A$ J- {) C! z- C' Q4 A/ l8 u! sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 @* N$ d8 c: t. t& e* x8 y[set global-proportion 0]5 L. q! @$ K! x. C! ]1 y
[let i 0
2 T* @$ P/ B5 K* m" W' t" ~let sum-money 0
3 E0 Z8 V5 d6 h6 R9 B1 o1 E$ \while[ i < people]
' ?6 G1 u2 O2 X9 e0 S[: |+ x) s5 x! F! [# G. p; `! S
if( length (item i' @; j! K1 U3 B! k
[trade-record-all] of customer) > 3 )5 A# h& `1 i+ ]: L4 H( `
[
5 j- `3 u6 I! p- V- r5 V% \set sum-money (sum-money + item 2(item i [trade-record-all] of myself)) u; B4 F6 z6 J" i {# }' A
]* f ^7 Q6 c% V! C: w* ]
]
$ P3 j1 b( N% a% E& @let j 0% N, V0 i+ f1 O6 m+ {/ W
let note 0
4 W: c. G3 [1 ]% }while[ j < people]
% J- Z1 n/ {6 n! S+ h q3 M$ F% }[/ `# l u/ }$ I/ g/ ?. ]
if( length (item i4 [: T0 B' v4 K8 d! H4 {
[trade-record-all] of customer) > 3 )8 c/ D: z- k6 g
[
. Z) L2 p) I# H2 j3 ~; jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 u+ a! F) `( |# p8 i
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ z( ?! }* A( E8 S/ L0 V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 ^/ D9 A. H# k
]
7 s4 {+ w3 ~3 P' b6 y7 S/ M, E]
! l2 B5 S* {+ Hset global-proportion note
% Q: Z4 B a; F: H2 |]
' h O- q6 D4 \end. {2 e1 `2 R" v, q
: X: @3 ]6 w; k- y7 t6 v6 |& dto do-trade
7 v5 {$ w1 P" p1 `;;这个过程实际上是给双方作出评价的过程
- a+ d6 m' J( W p t- M2 V4 vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 t! L/ }1 q+ A% t6 _& gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& L- ~, G3 K. _* `- B* T0 s& Z
set trade-record-current lput(timer) trade-record-current" j2 C, @$ x' M. }" i7 Z2 e/ o
;;评价时间* f6 ~- q6 j- T9 D
ask myself [) ~+ A2 j# n- }1 i7 P7 \1 A
update-local-reputation
- F C& B% W% ^6 \1 V) N1 dset trade-record-current lput([local-reputation] of myself) trade-record-current
! N' k, v0 o) G]; E/ Q4 t. a. Z+ e- {% o7 a3 S
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 ], J2 n+ h8 \5 d8 ]5 u
;;将此次交易的记录加入到trade-record-one中+ h: g4 L6 b) V. f
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ o9 ^5 d/ j; m' Y6 w) Llet note (item 2 trade-record-current )
% J9 h6 p$ O& y/ ^set trade-record-current7 Q- i. r( G$ P \
(replace-item 2 trade-record-current (item 3 trade-record-current))
& J* u/ h1 A4 [& A$ bset trade-record-current
- _. w( G4 {0 [* \) @(replace-item 3 trade-record-current note)
: o0 \$ X5 r" H, H& k/ k3 j
S) x5 X5 F6 S( c1 ? d( `) N& _9 T4 ^, `) E2 Z ]# j7 d3 V- Z
ask customer [
/ n: T [8 ~: O5 cupdate-local-reputation- w- {' Q6 a, x1 ~" ]
set trade-record-current1 ~) | ^5 Q# R u$ @
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- `0 ~. _* s6 J7 K: W( W4 q' I9 B]
& n4 B3 O: }0 U3 g# u
|) _- L0 s; a8 \+ [8 L
, u0 [6 j/ G$ Y+ ^" h* ]4 uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 C3 Z' ~% N5 \( H4 R* i* W" R
* z: ^! A- I7 D2 B( ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) V* q* I. `2 T! G& {
;;将此次交易的记录加入到customer的trade-record-all中3 e6 K& j3 U+ a5 P
end/ S, r- o- U. R" l' R8 P% w( t0 G3 {
! _; i( Z% W. u" v6 o! Z8 h+ nto update-local-reputation9 n0 Y9 y$ ]- d. ^: F
set [trade-record-one-len] of myself length [trade-record-one] of myself
" Z a" E$ p5 `* d2 k: w$ {9 f; v H& ^
! b, s3 S( z9 P. h' s7 W W
;;if [trade-record-one-len] of myself > 3
" r5 H: w% o/ a, |7 y" a J& Yupdate-neighbor-total
# z2 `, ^( \: X;;更新邻居节点的数目,在此进行# a: k0 N+ D+ b4 S
let i 34 ?0 _. i5 K3 b6 k
let sum-time 0& a& S/ R; p& f5 K6 \
while[i < [trade-record-one-len] of myself]
- A8 f5 N: U: s, Q4 j0 q[
& {$ z" T5 D) z3 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ ]% `0 h7 L* ?- U9 y) ^* M
set i! P. j, g- F& S7 y8 M- i/ ]6 d! @
( i + 1). s& I: K4 B# y) _
]
8 K3 s. E4 k; w* r9 f& ~let j 3; b" A, }0 w5 w/ z8 ^# I* F% {
let sum-money 0: s; d1 w% M% e, I; I8 E4 M
while[j < [trade-record-one-len] of myself]0 p$ W- c2 |; L+ |
[0 i7 C" r5 |9 D( x
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)
5 |8 l7 V; u( k0 \set j
! f/ B9 g2 q) M1 J( j + 1)7 A& J6 `) R' k+ z
]5 P1 M. C( N. d2 D6 x. C5 ]' j
let k 3; ~3 Y" D+ X d( Z6 p3 r
let power 0
9 T/ W6 w4 u6 N0 R3 `let local 0; ]& I( C% N: R- ]0 L# e
while [k <[trade-record-one-len] of myself]
/ z- A( o% v! F[! P) r7 I7 x& N: D) h5 }7 I
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)
P8 K" C! Y$ U$ n% x+ {' [set k (k + 1)! O$ G+ H/ g. b' Y- f" y6 I6 r
]
2 n3 m! u: b- Z$ m- g* [0 ?& @ `set [local-reputation] of myself (local)6 A |5 j; ]" T
end$ H2 a# c$ o8 q' k9 {* b
# W5 D; M2 v% w# w
to update-neighbor-total
+ L& I7 c( Y0 M+ [$ I+ X9 o5 Q- r! ]) S* r# X* V
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! b& {& g' R* B0 U$ X) ^0 w+ P
5 T9 a- J' \3 Z, g: v- l
2 @" w; S/ D# k* S0 `- ] I: fend
" j+ i% p4 W* j+ t; K) x* v8 p
: o- H9 S: Z9 T: ?" Ato update-credibility-ijl 2 ^) `- P& o; h3 t" C% q
( q; P3 a& E6 {' Q
;;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。
. b! l8 H+ r" o& | s( o( e' i! @let l 0
. f5 w% M' T- w, qwhile[ l < people ]
( E8 \2 R) U, s4 j;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 {6 D8 s+ w7 z3 ^
if (trade-record-one-j-l-len > 3)' w: T" _) [" K8 l% G) y/ 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
3 H! r+ h* i `) ~- Ulet i 3
2 N5 \' S+ X0 j9 M$ d. klet sum-time 01 G5 P: c+ R }) V
while[i < trade-record-one-len]) F5 K/ w% h. ^3 r) S) G! Z
[$ h4 P5 y) m+ S; K5 O6 h1 r
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 C8 u2 G" Q+ Z$ j
set i2 Q/ x) }! ]" W1 Z6 M' @
( i + 1)
' w6 [" x5 f1 S9 W! D+ ~" U]
% o8 j( A% E: [! V! Mlet credibility-i-j-l 0, W% P7 M8 T# A
;;i评价(j对jl的评价)
4 I4 ~7 s( M0 \" C5 alet j 3
% e9 Z- _. n5 T" f$ |- ?# p7 Blet k 4+ d7 A+ M6 `5 W4 p' I4 p
while[j < trade-record-one-len]
, H* j' V9 |" S% x) A7 n[, ^4 U3 q: ~. ^$ D% O% E4 ^& t
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9 z" ~4 E, L* _$ p9 r, t' [ m
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)
5 }4 |* w6 Y w4 L0 gset j
7 Y: o$ R0 s* G. h' o. H* P( C( j + 1)) l. O8 x c, m1 ]
]
8 X. `! w) |1 z) \# v2 ~2 dset [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 ))
6 e( M/ \9 A% ^! n$ W* S+ f. e$ A! |0 ~/ D1 M. b# M( V1 u) W
6 |9 w# H" P8 Y' l; u- jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 _% `: M- i4 A) ]- x/ g3 b
;;及时更新i对l的评价质量的评价
+ n: `5 f. x/ o- D b/ Uset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 }6 Q4 I% F2 T3 ?2 a! Dset l (l + 1)
+ ^, I* t, S/ M8 t" L]
6 d; ~9 U& Q4 s5 W) rend
1 q2 [2 X4 |! \# d" z" m, V; p- v& P# V
to update-credibility-list- J# d+ m$ p6 K" N
let i 04 Z2 u! k' |4 q: Q- Z
while[i < people]; Q4 g; x& H7 c: l
[
7 w. l/ Y, S2 ^let j 0
9 Y0 k' K) [* C `' ~let note 0
! V* J! |1 _. Y6 ~ o r# {! Vlet k 0, J+ G, H1 T q' Y) C; w
;;计作出过评价的邻居节点的数目4 y8 }+ G3 N3 `& }2 z4 V* J/ c
while[j < people], Z6 }& ~, h- @. f" g& C R* E/ b
[
' Z H( |0 G, Z0 m6 pif (item j( [credibility] of turtle (i + 1)) != -1)
d# ^1 d: I0 \2 c$ Y2 ^9 p;;判断是否给本turtle的评价质量做出过评价的节点
/ [4 h. B9 X- P+ ~, _/ D[set note (note + item j ([credibility]of turtle (i + 1)))
, G( g1 q8 O+ B( {$ f" E;;*(exp (-(people - 2)))/(people - 2))]# S: K/ @" O& J
set k (k + 1)
3 `" l# @8 \! u' [" J! _2 h) N5 f]) H1 e. b) g& R @$ S
set j (j + 1)
" x: A5 e% Z+ K& N8 u]
5 v$ l2 T) o$ R" f& H* R# sset note (note *(exp (- (1 / k)))/ k)
% z0 L" n: Q( {( A& J1 ^ \( Hset credibility-list (replace-item i credibility-list note)" }; n" d9 V# o
set i (i + 1)& T9 ]+ a+ ~' {( @) W3 [
]
1 ~2 s& A8 L1 I% o( j! \8 Pend( B' F2 ?0 g6 U' F/ O5 r* l
8 V, C. C7 P0 _& e
to update-global-reputation-list- a, E- S$ p2 E& v0 N- e: I+ |" V
let j 06 n0 f J$ b, A; H+ }& c
while[j < people]; H! G% x. p7 i) e5 y, D
[% c* z6 i# u! L5 V3 b2 ?6 q6 C
let new 0
' ~, R8 m) x9 n* G n( w;;暂存新的一个全局声誉
. Q- ~7 K5 S, u. x' ]let i 05 B/ ~0 Y; r3 b7 \* G$ _4 y
let sum-money 0 }; B- c( q7 q. @, ?+ }
let credibility-money 0
& X5 a# H+ V: ?/ w* Pwhile [i < people]/ i2 T+ z4 i4 h
[
) k6 J" T% ~& {+ Z/ Jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- E6 ]8 B% H2 ?) I' A& Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), m8 G7 f/ [& P5 c2 H
set i (i + 1)
1 Y7 U+ ]4 P- K; v, y3 {/ v& \5 _]+ A- t: R: I5 @4 F! }4 q
let k 0) U% d3 a1 Z7 C. p
let new1 0& _* z3 q& y+ x
while [k < people]
, K% ]3 m- {, O[. m* f: x6 }8 y; r# n% d# f) M
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)
7 ^+ U1 w" m) ]* W+ z& y' E; V) Kset k (k + 1)5 f: [- \, e; X1 i9 Q) G; o6 \
]' d/ Q; u6 e5 R' I( x7 I
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 [& X( _+ r* Z
set global-reputation-list (replace-item j global-reputation-list new) k/ u6 b9 z# r- F, O0 q7 d
set j (j + 1)
0 M: N. }) F P, O( I]" X# J: d9 F+ V& q0 k
end! p% r% u: _, r# Z- u
% j1 b- M% n" m7 {0 `7 D5 v
2 q9 P7 \& X' q7 t' n7 |) [) E5 ~/ }, J% J
to get-color0 G6 `- P6 B; [" w2 I
1 P0 z* b9 b5 G- ?' `
set color blue
4 g% u" t9 \- i; [6 @5 ]: Send$ l( I6 ?) d6 h0 }" \, @4 y* ~
, i0 ^" {, y- L6 {9 ?" Pto poll-class0 n- }0 M: Q" ]
end3 D1 f+ s2 u5 I
J0 [) V# k( H$ pto setup-plot1# l+ C, N/ ~. v- `9 Z- g7 \$ S! A
4 ~* ~# a5 B' W! f
set-current-plot "Trends-of-Local-reputation"9 b; k: e# P5 I
6 j% H- X; m8 {
set-plot-x-range 0 xmax5 ?) Q5 |2 u! M" t3 C
8 Z1 p# j$ r9 `, T$ O/ g, V
set-plot-y-range 0.0 ymax
^+ P7 R4 X6 ?/ y3 ?; }& A0 B0 A7 p0 dend& X8 D2 _9 `( t$ v
+ ?" W9 z `" M6 q/ w: i
to setup-plot2" x! X) J; r4 @( [
' ]5 a; z: R) O p: Y' cset-current-plot "Trends-of-global-reputation"
% i4 ?% S4 E% e, ]
2 c# U& o! E! Xset-plot-x-range 0 xmax
\+ w- U( K: K6 v; [: ?
" a; R9 n4 v- ^7 Y- Eset-plot-y-range 0.0 ymax
3 F0 H+ R; z: R0 |; vend
" r* x4 m* H# T5 `4 {
" }5 ?6 z# O0 Fto setup-plot3
o& D$ \$ }; C( t7 K& \" k8 H& y
set-current-plot "Trends-of-credibility"+ s6 D8 j+ v! f
* c2 a6 A0 ^+ J1 S, u3 R: U) vset-plot-x-range 0 xmax" M5 G H3 I; Z' I k0 f
! h+ A% h. D' oset-plot-y-range 0.0 ymax3 ~. i C0 R. n! J
end
" a2 C. u- b: H/ W+ |0 \4 o! @4 f P
to do-plots
; m( _4 H* q4 R) B O7 Sset-current-plot "Trends-of-Local-reputation"( M- [+ @0 c; t1 _2 W, a0 x! X( }% |8 a j
set-current-plot-pen "Honest service"
* D6 O1 N, I* l8 K% c2 [0 r6 D4 I2 Bend
2 @& R( O3 L; L# g9 d
5 q' @' k0 P6 z: T[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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