|
|

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
6 h5 w; e$ y1 N% c1 b4 K% |globals[
( a$ n4 _; W) {% Z6 X) j S9 Q! [xmax2 Q* R+ B" n( T
ymax
; S% b! ? R5 T+ H7 q0 @global-reputation-list
3 k* g; z' c* M. l: z* L
# s' f2 ]! T7 _ W2 q;;每一个turtle的全局声誉都存在此LIST中; u# p; r* Q" e* h
credibility-list: M0 X7 F- E' ^( r4 D
;;每一个turtle的评价可信度5 E2 }4 i6 `* R& `) p2 ^
honest-service5 {/ _" h S# k
unhonest-service/ t0 i4 _9 z: A4 ~0 _
oscillation) E, N0 _2 k) ]8 @0 u" a# w# a
rand-dynamic
$ d$ [2 H, K! p& P5 _) ?) U]
; H* d0 V9 s+ b/ O& }5 }9 ]% @6 _( J* H3 S* \
turtles-own[, B$ _ E" C7 n6 A" H5 }! Q
trade-record-all' r7 `; {# J8 I# y# @. U0 \" s% P* `
;;a list of lists,由trade-record-one组成
- ?: U1 X0 T! Z+ Btrade-record-one
. X/ B- J/ e5 Z1 x2 X& J E. Q;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
/ X" d8 k- X+ H' v% i6 P c; _$ Z- c$ x9 p8 Q/ t
;;[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]]
! f8 I. z( q; N! r+ Qtrade-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 W+ t- o, C0 R" S
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
% a- p/ t6 I h |neighbor-total( S9 F- L1 U' o, O$ H1 x
;;记录该turtle的邻居节点的数目
4 @) c% I# ]6 X ~# ztrade-time3 h$ Q3 B; K$ A: P8 D4 L
;;当前发生交易的turtle的交易时间
4 j. a7 O; v# w0 L. ~appraise-give
0 W6 ^$ E0 q8 o8 ]. o: I;;当前发生交易时给出的评价
6 }1 R, @3 b: w& v Nappraise-receive4 Y+ f ?) Q: G% G/ p3 v
;;当前发生交易时收到的评价7 g$ M! F3 E" s' L% q
appraise-time/ p8 w/ O( s! U$ Q9 R
;;当前发生交易时的评价时间/ v4 c/ Y( o8 m. i8 ]! k) t# M
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ h5 X$ h8 y+ d3 A- H* U8 } }% | D$ N
trade-times-total' x1 \" s; W- ?0 J" q/ p
;;与当前turtle的交易总次数
+ f6 g0 ? B. s6 q% dtrade-money-total
& M! x' P- s7 a' S, d) p/ m7 H;;与当前turtle的交易总金额, n* d3 i h2 z# h. ]4 l t' @- E
local-reputation
: |' W7 S1 R; I1 S! @+ y( H7 ?global-reputation3 a: G/ p, I/ i5 `2 g) E; T
credibility
) {& q; [* B) f4 A3 x B;;评价可信度,每次交易后都需要更新' b' X: ^+ C6 ~8 z9 C
credibility-all
. |9 \7 {! E9 s+ V* M. J+ K;;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/ Y# }# ^7 k/ \5 V' l9 m" o3 o
( t, Q0 X M+ u2 j% p. H7 |, R8 y( f;;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0.55 x1 v- h& s$ q- ~$ c4 g* |
credibility-one
0 Y4 N5 H/ _: k" H2 ]/ N5 Y2 [4 A;;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: |) H3 t2 I$ p
global-proportion
4 b' A% ~2 W- I' p4 W j; pcustomer
( v8 d, M# A7 y* f [+ Ecustomer-no8 R& | a. O. t+ X. s* F
trust-ok* `& y( {+ l" [8 L5 i b
trade-record-one-len;;trade-record-one的长度8 B( u" t& F+ R Y$ Q9 K
]
' T n$ l6 i' l A" A8 ^
: R4 W" `- _: g;;setup procedure! T% k% {5 F2 `' p% e- Z# Y% L4 z
. d, w- C J( ?to setup
; g/ R z r L$ O( L" i. o
* O5 B" Q( g8 `5 U' `ca' o. F* o4 q% @
& p+ d' Q) X; f2 Rinitialize-settings
& [. i8 G6 G$ J* y: h K1 j" R6 ?$ d; ^* C. A; x
crt people [setup-turtles]' p: k+ V. a# M: n: I
7 v# l( H( l2 n+ ~) c: h
reset-timer2 w+ f7 t! u7 y7 \" ?( ~ ?
! u, T! k4 X M6 Kpoll-class# R e" m0 H9 Y5 p
( b6 K+ t ?$ q4 J. Psetup-plots$ i% }( Q9 I0 k9 w- }
1 v' B( f5 z) T5 Udo-plots$ I: I9 j+ I( Y9 u4 y! `# U
end
2 m! N& ^% \ Z4 G$ @5 D) i
w$ C& F2 ^$ Jto initialize-settings
3 c/ o6 A7 r6 ]
6 G9 `' i2 N+ O9 Yset global-reputation-list []9 j/ K4 Q# {# n6 h* F( q( ?
8 |1 d' A3 ^5 K$ G
set credibility-list n-values people [0.5]
$ S+ V) j" M+ H2 v1 H* R, Y1 A" e& B/ e
set honest-service 0
7 d( d* U/ c, R1 `/ c
9 j% y9 }% `- g x/ t& fset unhonest-service 0
0 N0 N0 \ Z& S
. d* a: M( }5 ?1 tset oscillation 0
: H4 S1 ?# _0 k. r
+ r7 L# F1 e% Eset rand-dynamic 0
0 a( G. _6 ]+ Q9 R2 c6 oend
R9 S# g* ~4 S; o4 Z+ P+ I0 `% T I- G. Y2 e$ }6 ~0 E
to setup-turtles
3 b l* l8 _2 ]/ aset shape "person"
% W. p o4 Y, K/ O2 a/ i4 g) c8 nsetxy random-xcor random-ycor- l+ j: _5 W0 ^$ V$ ~
set trade-record-one []
, x a" Y& e4 x2 Q+ F8 I; `% B' ]& b
' H8 ?! u, a1 I% M: dset trade-record-all n-values people [(list (? + 1) 0 0)] ' Q4 }/ k) p! X( q
/ M/ e3 k3 \- v& Aset trade-record-current []# h C. A& T4 C0 N2 C9 X
set credibility-receive []: S* d5 w% v2 M+ ?
set local-reputation 0.5: ~# k9 v7 { x
set neighbor-total 0
# Y9 r" D7 L2 z8 l4 q" `& Fset trade-times-total 0
1 f" |7 a9 F; o( \set trade-money-total 0
9 h# ^- k5 U2 g/ _0 ^' tset customer nobody `7 f8 ^$ e" R8 ^2 i
set credibility-all n-values people [creat-credibility]
/ E2 h3 h; V; |' U, {set credibility n-values people [-1]
- \$ \& ^" m8 z+ C/ Z) @get-color' ]7 T& J! y) T' U* q$ U; ~. e" g
" L, x5 i1 A8 }end; A/ b% g' M! Z4 v$ x
: a7 R \ w) M( {' z
to-report creat-credibility
# c) p$ A$ o6 ^report n-values people [0.5]
! C7 n3 ^4 U# t1 ~' Oend
/ R% L1 \2 x! y' F2 Y# _8 z1 \2 s( b
to setup-plots
' O! F! h' w" N# I& c6 l
6 Y* z% q4 s5 Q, G' g$ zset xmax 30
7 Z) v- g O8 \# K; i9 O5 i& P$ X; d! {7 P: b& ^
set ymax 1.0( `- |5 |/ I* o) p
3 L$ o7 D2 o+ m: L# c9 Z4 }" s" r/ Mclear-all-plots9 A8 a% V; s- o# E* M
+ l a/ |6 b D2 c9 C' W" `( [
setup-plot1# T* x* m, z' L" p, s9 s
* A! K' ?( H4 W: [# r/ |6 \
setup-plot26 }9 q" N' R4 G$ p$ x3 }) X
! M4 y. R( L: G- u! r5 f& m* q( Isetup-plot3# b I2 X m8 P! P: h6 V9 |6 D
end8 J# E+ r9 u' i% M3 b0 k
' I0 \: ]% u9 X6 i4 I9 F: u
;;run time procedures7 z- W: I1 {1 j9 g' Q! D
2 m/ b1 e# h- D- u$ G, Pto go
# J" J& s% D+ y( Y- h: W* i
& |6 D8 X, |" V6 J4 R8 ~) sask turtles [do-business]
/ {2 D7 D1 [; h6 N4 Zend
* [2 k5 y% x) w* n9 A( P: I% `# p1 o. H3 a4 \0 l' j+ Q' q
to do-business 1 D6 |/ w5 L" a4 ]! I
8 f8 c, B# Y1 h5 X* K% _, v1 c
( I* x# n' N, H. o `; C+ G0 m o: @rt random 360
( X! `9 s( v/ ^
0 {: V* S' ~6 v" }fd 1
6 L/ u4 q9 G- N
$ q+ Q6 N0 c/ \ }! b5 t) H* vifelse(other turtles-here != nobody)[. Q5 ^: L3 Q/ H% A \8 U$ |, _
* D L/ L# e, [- u, iset customer one-of other turtles-here
+ C' E q' B# l0 V7 L" Q5 ]0 f
+ \2 S8 [: Y5 D: f+ f- a2 R;; set [customer] of customer myself8 q6 C" c/ Z* T! ]5 B6 B& C
. e/ b6 W& D: Y6 j' r* u
set [trade-record-one] of self item (([who] of customer) - 1)
; ?8 F8 D/ N& ^; d T% N$ ][trade-record-all]of self
; O7 N" T9 U# Y! Y- E;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% v0 v& {4 h, l5 S9 i
* e) a5 Y7 Q9 E8 n/ i6 {' q" ^ D: j5 _
set [trade-record-one] of customer item (([who] of self) - 1)* v- Z8 q( Y* y
[trade-record-all]of customer
) a/ n2 J4 K8 G7 S* a) E( v" T2 X5 h4 j
set [trade-record-one-len] of self length [trade-record-one] of self, Z. Z0 w$ Z" ?; G
6 @' G" o( A, k& T* P
set trade-record-current( list (timer) (random money-upper-limit))
% G0 S* J: i: X, o0 W' |1 ^( i1 r/ G( k
ask self [do-trust]
R+ B1 s+ s& M5 K* e;;先求i对j的信任度
/ ?( T& l. c7 h% @0 S' s
, e% r3 V+ j9 Fif ([trust-ok] of self)$ v6 u4 |9 M1 Q5 ^2 E+ ~$ y! V
;;根据i对j的信任度来决定是否与j进行交易[ z3 ?& S, s9 R. p* n. c
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
0 a- B& d& N: r1 I. m8 @9 \3 v; O
& W4 i( t2 }$ Q2 V L$ j[# ?+ L, K6 I( i6 o
/ F1 P# q" }& Udo-trade
8 c6 m! j9 M. Q# i) {; ]& X6 j3 r# Q& j8 Q
update-credibility-ijl+ p6 ^6 v! y, E8 K# K
; @$ Z$ B/ `! J3 x! F, _' hupdate-credibility-list
5 a% Y/ l# [' l; i( D& b
& z6 ^& H* c( E) o0 o7 I: W) J; i% F N( ?, [
update-global-reputation-list
: ?4 e3 t; Z. P9 L8 l; U' ]* `. t
2 a( U/ |7 G1 ], ?0 U8 apoll-class" i$ O/ o! U: P, x( Y) C
, I7 z& _5 v8 A1 ~% M
get-color
@3 s- ]( I+ J) i4 c) h \7 S3 A- J) D# X: U( G
]]0 w8 y1 i9 B' x9 O+ o. q0 H( {* @' T- \* f
0 w* G' B3 L3 N
;;如果所得的信任度满足条件,则进行交易6 D- H! g0 M; s. }3 c0 s% D
+ Y. _, M, y$ V, L, u
[
& x' Q0 O/ O3 F8 O: _8 O! ]* W, [, l$ \) H: K$ U
rt random 360. Z- ~# h$ P {! I; l* N" ^3 z9 d
+ {. y7 D* B: t' a+ n( W
fd 1
7 t6 n: ^0 y8 z7 k) M9 B
^# u, ]5 x; t]. B0 f, W) `( B3 ?
! `6 D$ Y& \1 ]
end
( U6 w( ?. H; r q' E9 w1 W* f. E2 e0 O
to do-trust 4 Q- |0 V" Y7 d) b) ^6 [3 o
set trust-ok False
" s% J8 z3 L b- T- U L; a3 ^0 A2 y ^" G) j
& q' ^$ Z* R+ c$ }0 d5 Plet max-trade-times 0# |9 l2 }& N7 q7 O8 h: [
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ c o% ^; Z5 j. O2 hlet max-trade-money 0( ^0 M7 s8 f8 K
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) f$ K) k/ U" }6 i9 |
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- O+ e/ X1 [4 `- y/ _% }
I0 h; f p: g
! n% u! x- I, p# u. C
get-global-proportion3 ?( X& B3 {7 K' W a3 g
let trust-value
* \* W+ o7 Z1 Flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
8 h; V, f2 ^ d9 O5 Bif(trust-value > trade-trust-value)
( \* m% C6 [& a- V) k1 {& ][set trust-ok true]: s2 @: C! c, T3 y8 u. \: N" G7 p5 |% I
end
8 Q5 z; s* l% |$ j
) g2 N% B, O: t7 _$ lto get-global-proportion4 N# ?3 ^" w W5 |8 o
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 I6 H* K; k+ L% _3 q% r5 _/ b
[set global-proportion 0]
. Z4 F: w) P1 k! ~* ~- G7 d2 }# I[let i 0
6 _( k9 b- Y: _3 ]: Elet sum-money 0: ]: I$ o$ f8 Q2 c
while[ i < people]
: z$ ], z+ A3 J6 J# T[
) r" B: o; K- Qif( length (item i
5 p- ?$ r3 e- m& O[trade-record-all] of customer) > 3 )& Z0 L2 |7 v( D2 s) _/ I" L
[
! ~2 P- N! B4 B, { s( G- bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 ?: ^$ t1 R# E]
" B& }3 D. P8 c5 U) e' T( L7 A]) x" ~# v/ N) Q. w' N
let j 0$ e1 }0 Q1 e' m# Z6 y6 U
let note 0
1 [6 @. m% I* w! u Cwhile[ j < people]
& i2 a7 }8 r9 W[
" H z/ G* l: q1 k, E' n( aif( length (item i% B3 I7 K4 T m J
[trade-record-all] of customer) > 3 )
% v8 ^0 U( H, _3 B3 a i2 T[4 T$ A( G \- Z( |( E( q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* _( L+ \0 \& p7 r8 Y8 ]
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( [2 N: a: |6 h) H7 y f# b' i0 @[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 n O* `. u, m]
8 M. j2 D, I! O+ h; r% l' D( @/ A]
4 V1 w0 l7 H4 y" wset global-proportion note8 w4 y- X2 H- {+ _- E
]# I1 ]9 c/ |7 M Q# t9 V
end1 m. t/ ^. D; f7 K" }
7 N4 C; M( g5 |
to do-trade
) r+ n, W: m9 h Q% I;;这个过程实际上是给双方作出评价的过程+ f5 i! y$ p/ z6 [2 X5 I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, I7 r0 L c' u! H: v& Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 M# z4 e) F) Y" @ m
set trade-record-current lput(timer) trade-record-current, Q% E+ y L) U0 e
;;评价时间
) F9 W; h7 O. e6 r% Nask myself [
1 u9 _$ W9 z8 u: rupdate-local-reputation
/ I$ \5 V& N9 g# Hset trade-record-current lput([local-reputation] of myself) trade-record-current# s6 E2 M' b& C) g( d
]
) I& i ~2 S8 p( r/ ] |9 S+ fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! R; Y5 R0 a# c. P: p& ^;;将此次交易的记录加入到trade-record-one中4 Z* v; a f" ?3 K; T# Y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)# i$ _4 J% y8 q1 V) U5 E
let note (item 2 trade-record-current )
$ j- x& h" l' H9 C& c: r6 cset trade-record-current
2 |0 W4 C3 Q/ s0 q8 e(replace-item 2 trade-record-current (item 3 trade-record-current))5 S" \$ Q$ | Q' h
set trade-record-current
' g3 }' ~! ~3 B7 I(replace-item 3 trade-record-current note)' |: I/ }! f0 j# ~& K$ }
" q0 Q; y$ S U) v) J
! B5 I6 i, R2 J, v# p$ J; Fask customer [# \/ Z- g( n* v3 P6 Y
update-local-reputation
3 c9 q6 Q5 _9 Wset trade-record-current
" |: i- m% ~: q6 t& y; N: V% R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% o4 U4 E' l2 x; e]) \' B! `: H5 Z& j; C6 Q1 i
3 @6 r$ [, n- ?) w) t
; B5 W i. @( i; bset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; q0 L4 N" w- l0 u$ I
3 P5 |$ t6 S" ^ J5 h* E r7 U3 eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ h* X1 R2 I. c5 N$ b
;;将此次交易的记录加入到customer的trade-record-all中! q8 v9 K3 l7 U6 G: g
end
8 R7 A, \) a6 A# B0 D8 {! S* \; s8 O# z1 A9 |
to update-local-reputation
8 h; N8 S S$ C& C3 @set [trade-record-one-len] of myself length [trade-record-one] of myself
( v& a8 p8 \4 A6 G" p) I* ^( ?
: Q% r6 Z( w- _& m: N
/ T3 @6 {: T7 ~% T6 p& |% \/ L- t;;if [trade-record-one-len] of myself > 3
2 B# C0 ]; ~1 u5 cupdate-neighbor-total
( D2 t/ g" F: E! ]! y4 m;;更新邻居节点的数目,在此进行
6 {& A) Q% O6 C% H+ hlet i 3! w7 x0 @/ o5 A
let sum-time 0# ~7 n1 S2 z i9 Q! \. Z. y
while[i < [trade-record-one-len] of myself]
$ B7 n: f h8 f+ u& _[4 ]0 X# c( ^( @; O5 R/ a* v6 f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 n' o; X$ M2 a! X8 X
set i+ ?( s% r$ P4 _) N K: F
( i + 1)
: J6 G, A9 ?! A0 ]& Y" H9 e% \: y( N]
) ?7 N9 P+ R( O; Ilet j 33 @ Q: d( ]+ g. I5 o; i& o
let sum-money 0+ d! o* h; @, X2 t- d9 |
while[j < [trade-record-one-len] of myself]" V( ~& u! _6 i* M3 F( k
[
, C8 H$ [, A* C( Lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
3 ?( s' V- p' c2 Q- `/ ?set j
! f2 y; e- g$ t, o( S4 k# g( j + 1)
) l" E- Q7 ~' |* _' a]' H- B0 A) T9 f
let k 3
5 Z4 Z! j, D* w& _6 Tlet power 0, H. B/ L) F8 O- m+ {
let local 0 e# U. {# c. P& h# A, @- h
while [k <[trade-record-one-len] of myself]
# ^2 C A1 u) m5 P# C( v[* m r& ]+ Q' q) q5 w# ~+ l1 y% j+ N, f
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)
% y) t5 p: v* s- n' u' u% Wset k (k + 1)
$ @+ T$ X% j/ f. X2 l0 e; b]1 v" Y& G. L# l, V: \- v
set [local-reputation] of myself (local)- s6 G1 L( l5 K" V6 O- M" z7 d2 K
end
- u* R W7 G4 J* {, n' W
6 r+ X& ]3 S5 P* k0 S: qto update-neighbor-total
, U* @8 \ {. o! s
& J E0 f. N2 eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* b8 f [7 [1 b6 {" l, O1 q3 v
: w0 k! k( G9 ]" q. T% I) e8 G3 _
- b3 e& T! s9 c7 Zend
/ S4 H2 i% y; o3 Y
; _" y0 Z; q8 d& @( F$ @to update-credibility-ijl . r; j: q# t$ T: [5 e
4 @5 `$ @2 r# y) K3 \- g;;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。( C7 a* M9 [" {0 x' d8 j
let l 00 E$ |( y* `/ S0 l# f( }/ h$ q
while[ l < people ]
/ \% B, o" M \3 f/ };;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) I# [/ N; I! ]0 v l) m+ H& x$ Z
[
7 Y' x7 {" b% V) ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. g' j6 t W/ _' H4 ?if (trade-record-one-j-l-len > 3)
2 w7 S6 ]8 }$ Z5 {+ B$ b( r[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
7 s( U7 T5 f: b8 x2 h2 Rlet i 3
8 a# V7 @5 X: S. `: Q" b7 ]# Slet sum-time 06 p7 m4 _ X/ p
while[i < trade-record-one-len]
/ V$ ]; E+ F' ][7 U8 @" C. \; I, N5 A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' Y2 Y4 Z! s. A/ J# W0 S3 Jset i! _& }# e' T: l: U: Y
( i + 1): |9 T9 r; @" u. ?. {
]# z3 _$ j% @! `, F( @" G# k
let credibility-i-j-l 0
% T, K" t( _( ~;;i评价(j对jl的评价)1 {9 _( ]0 o1 V" R: Z" l) k. G) H
let j 3: Y- Q" ?& W4 j' H* Y9 c. W a9 m
let k 4
" ] o4 c& h8 _ \) fwhile[j < trade-record-one-len]% k0 ~* |9 F; d, S8 C* c
[ M5 q4 k/ G8 w
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% M. o, V; i1 z
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)
* X8 w& l* E% U$ v' ^set j
x( _# G; K" p% J0 ^$ h. l( j + 1)
b$ B" | i* m8 R/ E. @: w% w" |]
2 p5 l! T q& H8 b" I9 @6 a8 Fset [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 ))
, E" L9 l# { D: o# c ?$ X" H5 z E+ \
- `" Z" Y$ v- U# h4 \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 y$ P4 v* l8 V8 x) o5 F
;;及时更新i对l的评价质量的评价9 I) T Z, o V% Q J# w; D! {4 Z: `
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" i {) P2 m% ~* S
set l (l + 1)# X5 y: \9 J; I7 F' ^
]
" }) }& v3 @ E' f4 hend
j& o# C/ f U& `$ G: e7 o" h1 ] {; |* |2 O# [# b$ t) H
to update-credibility-list& [( J7 z8 E+ D; u0 v6 H
let i 0
3 ^+ U0 z" K; }# c$ uwhile[i < people]
2 s7 Z- H6 n3 k" V, G/ z6 N[4 P; n! s' D9 o/ {# i0 B( E
let j 09 _: {; ] K9 I
let note 0; `8 V# M7 f3 R
let k 0
W( ?$ q0 S% I( Y: f9 I* I2 N;;计作出过评价的邻居节点的数目" @* W1 r$ V9 z, e$ ]1 R: n: M
while[j < people]3 Q" W7 U T; w' H
[5 ?5 q" T1 U" v3 l. b# I
if (item j( [credibility] of turtle (i + 1)) != -1)
, p9 d. A& w" T" H2 g3 \2 E. |;;判断是否给本turtle的评价质量做出过评价的节点
* \8 I3 Q1 u5 @7 O[set note (note + item j ([credibility]of turtle (i + 1)))
( Y' m) T- L& h: k;;*(exp (-(people - 2)))/(people - 2))] m6 E U2 w5 i7 c7 m
set k (k + 1) J/ `* k, b, g# v
]5 }* E) g9 C8 o+ `" m* _6 ~
set j (j + 1)- e% O" I2 R* b( |2 a! F0 e
]+ P/ C9 E* c# _/ `
set note (note *(exp (- (1 / k)))/ k)
. U9 q) J, c0 {7 p. I' Qset credibility-list (replace-item i credibility-list note)
# B$ y6 \( H* D8 e, V: `+ z* ~0 oset i (i + 1)# b3 M' B- `0 A5 H- E: ]
]( b( {+ [/ y0 j2 b Y+ B) {
end
; _- g* X+ S. e$ S! ^4 g0 H$ V
, k) [& c6 D+ R2 `8 I2 x& I* qto update-global-reputation-list/ G8 c. d9 s9 U; \- [$ m( R7 b. T
let j 0
7 R! c2 x# h3 b6 N3 Twhile[j < people]
, j K2 E8 q9 O% M( V$ S1 Q# L[- D5 p* C' q5 q, T
let new 0
$ c0 ~: l1 @- Z/ ^;;暂存新的一个全局声誉
7 W' \# X* Y5 |, ~8 G% ]8 S! ^ Xlet i 0
+ v; E& C5 @$ Y" Clet sum-money 0& T2 T( c% B9 L5 O: k% B
let credibility-money 0& S: m2 m% A \; D0 m
while [i < people]
$ F; f% J7 F9 n' }[7 ] Q/ H3 B0 K5 o
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ J- N. R, ^, G' d- x( g* K* _set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* G# c* i6 U( y# a1 C- [ r/ g) Y6 X! E0 uset i (i + 1)$ ?' ~, x* _/ W4 D
]/ k# c2 b) i; P7 J( @ o& j& p
let k 0& R# [5 a( C# P7 [) |. B* u
let new1 07 W# Y/ x, T& p0 `
while [k < people]
) C# u0 K) x" F2 L/ \0 ?) i[4 F7 O0 E0 q5 r0 [* V2 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)
/ A/ R$ ?$ R6 Z* N# I4 qset k (k + 1)
% A- k$ R2 r$ C; E]$ e% Q& C! o) R8 X& E) |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 z8 i F6 I8 i" mset global-reputation-list (replace-item j global-reputation-list new)! D8 Z8 Z# i$ b$ ]8 K7 y% ]
set j (j + 1)
4 H7 b% a( \# c# D]1 }8 @; ~7 f, W5 ~9 A
end# h. E2 b/ U8 @
7 U4 y7 T @1 ?6 x" f, }4 X
3 i% ~. C$ V4 l8 V! x
0 Q) U" U% E, _: p d1 z
to get-color; w y0 R! x1 `0 x( i! z+ r/ u: A
1 A6 V7 ?1 Y1 D9 M( |' q7 `! j% hset color blue9 q; V/ z. z0 m! x
end
0 T7 }5 U# L# {, w7 ^8 a1 |6 b( B2 S% [: Q
to poll-class
# B+ h$ `8 A0 T2 S/ H0 nend
: F4 \0 T5 d' c9 R! K$ t3 Y. {1 B/ w$ V9 g+ Q0 S9 N+ }" `( L& Q2 [
to setup-plot1
' O2 m6 h( I ~) \" Z, C/ X! \: `' U3 _- j7 g
set-current-plot "Trends-of-Local-reputation"7 G- T6 d- k h. \ I& O- ~7 n
. k- b, z+ L M4 K, Eset-plot-x-range 0 xmax
7 [0 a; V' W a5 f9 ]' d" H: {' z' E( D
set-plot-y-range 0.0 ymax
, X3 e( p0 l, j7 P3 y& N$ Q" X5 j1 Tend
& V$ K" c# c! f! ^' W8 x
* D6 M2 e/ d6 Sto setup-plot2
# f5 O7 d2 [! C
3 P. [$ W" I) ]% S7 k5 i; ^ D' fset-current-plot "Trends-of-global-reputation" g! i8 v- H% K4 N' `) ?
. F5 ?6 n+ S1 K1 z) G: Y* \( Lset-plot-x-range 0 xmax1 `* t- d$ x% H! o! r! }0 {- F
- O: U+ [% T1 x Jset-plot-y-range 0.0 ymax
/ e* }# U0 ~9 n# Y4 L1 \' oend
& a2 q) {3 w) v. Q3 b: m) i6 V' _3 i- A% t3 a9 Y2 h, d
to setup-plot3
2 W5 |) z( q! n: I. o& j7 O* N2 T5 M. @, t2 h; j
set-current-plot "Trends-of-credibility"
1 D; h9 d7 ]: t. @ T2 {; N! F0 {9 Q
: I$ W* {. v1 H2 j9 y' dset-plot-x-range 0 xmax3 T* L9 L7 ^* Q/ u) b; J
, L: e4 P% Q& A! h$ ] uset-plot-y-range 0.0 ymax0 K, T! @/ |5 B0 D+ i: ]: j7 o
end* g% ^ [ }1 P
! g; I0 i0 V- H ?to do-plots
2 U' T G7 k( v, [2 y- Tset-current-plot "Trends-of-Local-reputation": v, z! e. V0 o! I/ A. y* n
set-current-plot-pen "Honest service"
$ X" ~+ c) z* x* g' Vend
4 H! E/ `& n; ~# ?4 R: |- ~- _! {4 [
R6 u1 q2 r( g6 T& K; y0 d# M[ 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
|