|
|

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8 t: t' _# j$ }, I; d$ A b
globals[ s4 j7 S1 y; \ x+ n5 d
xmax6 S2 ?# Y7 e6 u% C1 a3 _( i
ymax- {0 S5 {' o. y! S, F! d) _
global-reputation-list
O1 T7 H7 Y' W/ x7 y; {. R' B) K+ V& [, m0 p
;;每一个turtle的全局声誉都存在此LIST中0 T, ~, x' Q5 s4 U y; w+ S
credibility-list$ s" w% G: t% ^/ x6 ^9 l! u( L
;;每一个turtle的评价可信度
# `2 |( d" |5 v$ ^honest-service
2 `$ B6 b, \: q$ {9 a6 v% Cunhonest-service0 _) G/ f% C- _" k9 ~( p
oscillation
# C, c; o& h/ m9 ~' [, z9 vrand-dynamic
- L& X/ T: D3 B. {0 j& A8 L]
% s& O! l2 a$ r6 ^2 L/ {/ O6 F. }( R3 \
turtles-own[
6 w( `" r/ y8 @$ atrade-record-all* W6 d% \. J5 F
;;a list of lists,由trade-record-one组成
6 u9 R( z2 g; E3 xtrade-record-one; @" }( O4 f; L* S! k% W
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) J" I: u( }5 h, d2 i) X+ S) W
" x7 g8 I6 T! f$ ~7 s8 a" L4 }
;;[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]]
7 `0 w; `3 l( Z# 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]
, P9 G' E0 \5 U5 b" {; `1 d2 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
* [2 G$ G1 L0 H# Rneighbor-total
- i- W9 Z% _+ g/ i5 P$ ~9 r0 g8 K;;记录该turtle的邻居节点的数目
, \7 m$ G2 T2 D/ d% ~- ]5 D- n |trade-time% M: O( B6 E9 R& D/ G) E) i% D
;;当前发生交易的turtle的交易时间. \0 v1 c, e) d% W
appraise-give
) w5 b( q/ \3 M;;当前发生交易时给出的评价
: ?7 v/ \" e x. s, Xappraise-receive- ~9 D* y+ h: t' `1 N
;;当前发生交易时收到的评价
: J6 ?- o! @5 j" k, W5 vappraise-time- s! d$ L9 \0 N) F3 y
;;当前发生交易时的评价时间3 M; [- {; \) F3 P( G) l3 v, P1 H
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# K& L" p; M3 t& V& ]# ltrade-times-total
5 E$ T: A2 v/ T: M;;与当前turtle的交易总次数" ?+ R% d5 h2 Z
trade-money-total, F* ], Z- {$ y9 | F
;;与当前turtle的交易总金额# | ~3 S. x3 y+ j
local-reputation2 q: S' y+ |- j: W1 A T
global-reputation/ U) p' x1 q+ [
credibility5 \ _8 {5 {0 U$ `5 T4 O
;;评价可信度,每次交易后都需要更新
% h! i- [0 M% m1 a0 Ncredibility-all2 k+ @$ V3 }% R& ~9 S
;;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4 ^7 U8 s/ p. ^- Q3 ]
1 p0 O9 R6 e0 [( W& f- \" a8 a. v( t;;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' z( j( f1 k' s/ h, w
credibility-one5 @- L6 ^# A$ y7 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
8 H. @3 B# I% T8 `, Rglobal-proportion
" S3 T! q; m# ~0 \" [customer( e& Z6 F. F4 T$ [
customer-no
$ H& Z ~( K' g& h1 x0 B4 otrust-ok
0 U a: i4 e: G8 x8 o4 \* t: U4 k0 Itrade-record-one-len;;trade-record-one的长度& I1 w2 C+ \. R0 d f$ C" G ~
]0 ~4 S2 b$ Q" w' `; r! k
7 J7 o; e9 P3 x; Q5 O;;setup procedure
5 f, m6 s( ?* P, ^+ {4 k9 N7 l$ S; o* w% d
to setup
6 ~: H- H: s; L% e5 X( i
8 G m8 E/ l1 Q% L) _( O: j d4 bca
/ ~% p5 P& }, ?" B0 f
s1 s' [6 E% y( q8 v" ]4 Z9 N7 u- t: Ginitialize-settings2 p; |0 E! s& ^6 i2 h8 D& X) N
+ v4 g g( h4 \0 W: X
crt people [setup-turtles]' a( ~9 ^: r$ B$ v% @, |
* J9 `- n9 v+ q: b! m$ P
reset-timer
$ j$ l3 F5 c9 s+ D& m( W8 M' I
) q, \5 [. t) v: v7 m. hpoll-class
! s/ Q. C+ F; F) G% s
2 V0 C* P0 _5 K/ o: q1 L2 P; [setup-plots
6 D0 G: |' z% C. Y5 c0 c U8 h5 I- X' z$ d+ d6 ]& B
do-plots
' K" c( ^8 b. X: U- x# w" r, `end
2 h; C4 x! N8 r# k+ [, O) y# _7 r
: q& b3 E4 p, C ?to initialize-settings
( {, {. ^4 l( v# z) A' O# I3 h5 y1 E. b% |$ Z
set global-reputation-list []7 o/ Y, E7 K8 E; h$ M: E
3 l% L: C+ K/ a& ~! F& [" [$ ^4 g
set credibility-list n-values people [0.5]$ o# t( f5 t: ]% {* E1 P
& {% A7 C7 W( P' f- c. ]( eset honest-service 0
9 E0 o8 y4 R6 |" i1 `' Q5 Y* H3 B' ]8 x
set unhonest-service 0; y( l6 p+ @$ X" B' |% s! @
, Q, f4 o8 R8 b, B! L% |
set oscillation 0, X5 K% I" C' g5 f' G5 L
6 z, ^& i: l* q9 n! b# ?
set rand-dynamic 0
7 k- `0 M$ B. K! x/ ~end
- q, C% O, m9 i& l& x
& w! \( F4 }' V0 E2 _# x) kto setup-turtles
& s: }( N( ]' x n* V, V5 vset shape "person"( a2 @2 M" Y# I) j+ `& g R
setxy random-xcor random-ycor
7 T7 T/ u: @ q9 _set trade-record-one []
! t+ u* o& h! B3 u8 p5 @# U* o s9 q, M1 U
set trade-record-all n-values people [(list (? + 1) 0 0)] & N# G$ Q; d% m
3 X" N2 b8 \7 d# x9 Xset trade-record-current []. l% J9 R# V( j8 \9 J+ ~
set credibility-receive []+ w' D3 l* H4 c3 [
set local-reputation 0.5
, w; G8 W! z& @4 m* Xset neighbor-total 05 @, v' S- `! Y6 U
set trade-times-total 0
1 B. x3 W6 M" \5 p- _( N6 zset trade-money-total 0
' W* C' [9 I2 T' {) S! [. [. Z2 Hset customer nobody& O. F, l( F2 {
set credibility-all n-values people [creat-credibility]
; F& L8 {, i4 O* P Eset credibility n-values people [-1]
; c! w8 `8 O1 ?5 Pget-color% ? _+ k( c+ f7 k' n9 @& ?
/ J9 B+ d4 F3 ~, q# V t rend
3 o4 z/ ?' G4 }* c m5 S0 |& p" p' G
to-report creat-credibility3 i% @' ~9 A/ O) \
report n-values people [0.5]* P) {, D8 A' d r) B; r# v- F0 }9 f
end
7 Z( X2 G' O: T: C, Z; X) v! r0 m) G) f$ p% x- n0 s/ a/ E. f+ x
to setup-plots: S% G$ v& m! N
% O+ ]+ x9 G! d% Q( ~7 y- b
set xmax 30- T& P; q+ e" i. N: y
# I8 k( P3 s4 Hset ymax 1.0
4 m/ |8 u9 u& [5 o5 O G6 U% ^0 V1 e3 s( [. L
clear-all-plots& m) U3 y7 f+ _0 v
" C) j6 t L; y7 ^; S$ Ysetup-plot18 e, B0 ~9 s/ p" A& w+ V! Y/ n( N
3 r1 H9 Z5 [9 n* c; Asetup-plot2% [( n# }$ l- N0 g. U
5 c9 ]. b1 Z, X3 v# E `setup-plot3
. ]/ Y+ @3 F1 tend; M% i* t) K5 u. j E* C! A7 t) l
1 b& h5 C9 F) s6 V;;run time procedures& v' @/ t/ I, N# E
: D, q' D: O6 Qto go
! A$ S+ o3 F; g Q, G8 v
8 G: U% D! r; l7 o! kask turtles [do-business]
9 z$ \ V. o. Qend" h+ X. [* T$ _% L o7 k! W9 A
5 `8 t( _5 Q+ i4 c" l7 d4 Ato do-business # {+ F. _0 y) J% o* Z
n" o8 z G; ^4 b) L
/ ^% Q9 l& Z8 ~ V0 E( W# {" lrt random 360
, W- n& I8 v( N3 g) ?
, j) S, X4 K4 ~& f. Ifd 1- n* u) x& k1 c5 K/ q
' m2 v c3 t/ P
ifelse(other turtles-here != nobody)[
- m: _, Z3 L3 ]8 m0 |
8 G- k- H* M( @ Y5 {: |set customer one-of other turtles-here
2 P6 v4 G( E- u3 Z+ r
2 l3 ?4 o- o3 G( C+ j! E;; set [customer] of customer myself
8 ~9 N& M$ Z7 }
( g; S7 o3 C- `7 Aset [trade-record-one] of self item (([who] of customer) - 1)- e) S1 R. v1 d* r. q& ~6 q
[trade-record-all]of self% K; I( |( T! }
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self @2 e- n F8 w, d3 {1 r5 P! U) f
: r7 o' D! r+ h, z7 ?
set [trade-record-one] of customer item (([who] of self) - 1)
* E# j& Y* U. x0 `7 ?[trade-record-all]of customer
9 U# M6 t- Y' h: D3 o5 S% Q: v2 N! G( r- x. X( d$ q7 P, U
set [trade-record-one-len] of self length [trade-record-one] of self$ ?8 T. S/ P! U
4 @7 P( N8 o, F) Z+ Kset trade-record-current( list (timer) (random money-upper-limit))
0 O0 Y0 N- P4 d+ n, t$ D1 o; [9 ~5 P6 \; w
ask self [do-trust]
: P& d% z, V. U1 h, {# M5 V3 h;;先求i对j的信任度
. u* N# m. N, Y4 x; M
& v+ G L4 F" M; J7 \, @- Y% g7 a2 hif ([trust-ok] of self)2 R; q# v. z I1 I7 m% w9 \
;;根据i对j的信任度来决定是否与j进行交易[. L, g* W& P' v3 U% g8 ^# K
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 ~6 O& r/ k$ }8 p. T. {) [/ w: D y% t( U1 S% z" q* N e8 H9 _, k! z. p
[; r$ D! _0 A% V
/ d. ^; J- G B, E* ]
do-trade
2 m( T* k. ~0 N0 j5 ^2 d4 s; n2 t& i$ G1 V! m ~2 Z, H
update-credibility-ijl
2 w- V3 o. K+ k( R8 F+ v; [' i/ E$ e
update-credibility-list
@# f, U, I* d9 n
# ]& Q6 d9 X2 w+ c1 _5 s5 W) {
9 _; W: W1 ?& [! i% }) Xupdate-global-reputation-list. D4 C/ t6 }8 U) `$ h
6 [ w0 I- ]1 D6 h$ O! Gpoll-class
# A: I' |* `! }5 n8 M0 v
% }( c, b, ^* d* \( U' cget-color; o) f! q- w$ d
& H+ F1 c; R4 ^; }. I0 r7 e# `; A]]
2 \; F$ k+ x; R% O& X: Z8 a5 G3 j2 s
;;如果所得的信任度满足条件,则进行交易
( L" ]+ v! i, [/ k
7 j% ^% R' R, X1 Q[
" o* X, ~: x) I6 D7 |- |% I) K/ }* i) j o4 W; S
rt random 3602 _, C, v1 P, v" e
" @) r G5 z0 A( ~0 I2 j7 J4 Ifd 1! Y3 K- f1 X7 q" {+ M5 G
- e, w" J1 Y; N+ s$ q P( q1 ?
]
, e: X2 j- V! S) L% E% R+ u2 E
]/ z- U7 {9 g9 ^6 zend
7 o$ `. E( d$ j" n* }
1 E' p) F1 J' u, Y* dto do-trust
- k' J$ L, I1 J( S$ yset trust-ok False0 A% d5 z% f6 q: O
9 D+ j; D# B2 O( f, X6 P5 W/ j1 U- i: m/ G: N$ `$ g
let max-trade-times 0/ m- g0 w6 ^% b6 C C& y4 h
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 w9 X9 J8 Z1 ^' Y7 |+ G. ]- Z6 j8 rlet max-trade-money 0
6 C3 N' Z. }" fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ c- @7 g' P9 j, p( S* R7 V) ]# t- ?let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% v3 d; f0 T# ?$ A& a3 z4 b
2 ^! r/ F& a; q
5 |5 @# |3 w0 F! v9 j" N0 |& {get-global-proportion
" {8 H' b7 e8 W7 P7 vlet trust-value
' Q( _4 q: u0 Q7 o# v; g j. ]2 B9 vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
" g8 Q! C! O8 C; Y! Cif(trust-value > trade-trust-value)
2 N" g2 G( M2 A7 ?[set trust-ok true]+ @% ~8 d# p8 E% {: u2 t1 W
end5 a' x! g: V# Y4 R# v& Y) m B+ _
+ a+ ]. k0 c" O, y" oto get-global-proportion
: }& A {( f1 K1 zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* I% h/ m5 Y* m! ]8 K2 o. @[set global-proportion 0]
, J- e: O6 a# i4 G& ^[let i 0
. B/ O! Y/ G7 K" H2 |let sum-money 0( r; v. b7 x$ S& q! a
while[ i < people]
4 Z. K6 N" p6 o3 _[
# j7 E" m4 Q0 [! l' z% G" K# ]if( length (item i0 u3 u4 O# i$ ]
[trade-record-all] of customer) > 3 )
! E8 n# O% L/ j9 S; C G[
$ r* h* ~0 T6 iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; h7 u% `- Y G- I]$ o( \9 v6 S6 y+ ~2 H
]
8 ~0 H3 H! j2 ^/ C; glet j 0& {& l/ s8 N- b- b$ s% R; r
let note 0
7 {. g7 z' O" E1 ~3 w$ Mwhile[ j < people]
5 H, j# F5 |% }[2 ~( t7 |# H! L% _ p1 S
if( length (item i
9 m" e2 {, N/ o T% x[trade-record-all] of customer) > 3 )0 p1 m; E6 ^& r9 R' e
[* J& _/ S$ [* g8 E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 r, s3 p: F, p. o( x
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! y" F1 Q, l# U5 ?3 y: a
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- X# o5 P: _$ E) a& l& X* ^6 M]
& _' \9 R& o" N" P0 M) i]9 ?/ T0 s$ h# o
set global-proportion note
( ~7 k |. v$ s. y# M]
9 h2 U, b/ \# M2 `5 ~end
' o, U" `7 ] ]7 ?0 p
5 r- z8 x* j# ^7 _7 Q* Dto do-trade ~( f' P/ ?, S/ J+ A: v
;;这个过程实际上是给双方作出评价的过程
/ z# I# m- x2 ^: a# X ^2 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 i6 i; V! g7 S& O& O% l4 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 q. ~) a K/ {- C2 N
set trade-record-current lput(timer) trade-record-current
2 b/ U, @' n8 e6 e6 |5 w) N;;评价时间% q. v+ o4 M* x6 ?
ask myself [
1 v" t$ i9 o3 T$ Y0 v1 eupdate-local-reputation8 y! P" i( c! {! |4 s3 N
set trade-record-current lput([local-reputation] of myself) trade-record-current! P, i3 {3 Z! Y$ p
]
( K4 X* {6 F2 t+ Pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- z8 e# K; ?8 f7 T G; W# \( s;;将此次交易的记录加入到trade-record-one中
9 f" Q5 r2 H" t2 J4 Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 v8 E& ^5 |0 A9 K% ]. m& klet note (item 2 trade-record-current )4 @1 X3 h' ?& d: W7 @" J; a) K
set trade-record-current
) S# \9 Q/ f+ b& S8 ^' d1 m(replace-item 2 trade-record-current (item 3 trade-record-current))
4 ]$ t9 T8 ~* I: Y% m3 Rset trade-record-current+ u3 e) k( \. L4 E
(replace-item 3 trade-record-current note)3 j/ w. B$ m+ _' I1 ?! B
$ J! Y2 L+ Y' N% K& l# B5 Q9 I
, ]' X2 L' U; L$ C, r7 rask customer [- m# Z6 W# C: x3 H. E# A
update-local-reputation
& y- ^1 a7 K9 i' Yset trade-record-current v5 D y1 _0 o5 k x& p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / a+ c! s" _2 C# o- S4 W
]
& g1 |& }/ \& G& Y: H2 o* O; {- a" m. C* z+ S+ p# @$ h# A
5 @4 O/ J" T! b& a! K! jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) a! `1 G; y9 P+ b$ ]' J- `$ O" j. G# T0 N5 u
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- `; G9 z- P# [: j1 ^;;将此次交易的记录加入到customer的trade-record-all中
1 G, ] {6 ~$ V0 x6 g# i* dend& H" y7 L3 J, T
Q/ @& Z3 A+ c5 F |1 [to update-local-reputation
( Q, ?; b- n* p% G. O4 _) bset [trade-record-one-len] of myself length [trade-record-one] of myself9 `* E6 P' c: a7 `
' @" X8 o4 s" |* I
7 z2 M/ k& t. [* N0 @* t& L;;if [trade-record-one-len] of myself > 3 6 i5 B; Z# n' Y& k
update-neighbor-total+ L" Y8 J' q" P; O/ ^2 B$ h3 _
;;更新邻居节点的数目,在此进行
, W L) n0 n5 t7 M( G) X& N) Alet i 3 u4 c4 A1 t1 ]. V, [* q# }
let sum-time 0, l; ?: Z# Q3 W2 Y3 l( D' N
while[i < [trade-record-one-len] of myself]6 c' w! \% f1 _+ d+ }
[
- ? ?; z3 h3 G) l. j8 y% A% q# vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 ~3 a9 Q# y& X& U2 tset i* E" j v3 s2 \/ g* f O: r
( i + 1)+ Y3 ?0 M( f% Q/ ?* J5 e: b7 v9 ~4 A
]
5 _0 U: K) b5 j- Z: mlet j 3
% G5 y p6 c$ ^7 b& b# w2 @2 Wlet sum-money 01 o% F8 X+ v4 ]- v$ w+ c- v
while[j < [trade-record-one-len] of myself]2 ]" K) Y; K9 W
[; ~7 L p2 S* g1 Z5 R
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)1 T% a: q' T \! [& K1 B
set j
$ g, H9 a& i/ R) b0 y5 g- C" t, R( j + 1)3 J; k) ?1 K' a, Z+ Q/ x7 Y3 v
]
6 }+ i4 n8 l. @' i3 _let k 3
# a" z% |" T' @ f0 J Ulet power 0/ g n% z1 y i; m: c* g, D
let local 04 I2 D5 x( a6 S8 c% u! h- S
while [k <[trade-record-one-len] of myself]) j F9 N& f: }$ w
[
$ v" o3 ^8 R; p8 M! Hset 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)
2 D& J4 I3 O3 u% ^- A7 ~set k (k + 1)/ U$ Q1 }# \7 U! d. U
]7 b3 |4 ^, \( t# ^0 O
set [local-reputation] of myself (local)% W" T$ l7 I1 [4 {5 Z
end' D$ _' k" Y% S. V# |+ Y
8 p, ]- y. `& X: ^4 I# P* ^% r2 Xto update-neighbor-total
7 O& Z" Q) O: x6 X, q' c& v$ t5 u% F7 l$ A. I$ g* x
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 @# m$ }+ G1 ^4 A( f
: U/ n0 Q/ a6 `* K( j! V- i. ?7 E
0 b6 }/ Y7 V8 M" hend) f; g. _" p: v/ q
# B! X# E0 B! q, j2 D
to update-credibility-ijl 3 a, W5 _% C/ Q0 ~6 J! h2 \9 B
% o+ j# u9 E$ L
;;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。8 }- L2 p. m, X$ a* v
let l 0
) ^, F5 x/ _/ G$ Z( I+ v# D4 `- B- P% qwhile[ l < people ], d; \4 |% r* r2 M6 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
7 G" f; K8 ]/ C* U4 R7 H0 a[
+ }7 D& ^9 c f; f* }let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 W& f1 C) J& l6 Qif (trade-record-one-j-l-len > 3)
3 G- n6 Z% B) R& ~3 M[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-one8 q: l6 `! W' z
let i 3
, K* q9 d" H2 dlet sum-time 0
8 d5 U- G1 S/ \3 ^while[i < trade-record-one-len]
3 H+ r3 N+ O: V% z$ Y[' z' Z2 ]. [; i( a& x( c
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% ?* A5 G2 S, g/ vset i
9 W9 e3 P; Q" ~( i + 1)8 Y$ l( J( F7 H0 ~
]
- K5 `2 |, B1 X) B" M% C+ clet credibility-i-j-l 0
* H9 m. j1 X) l5 j& M;;i评价(j对jl的评价)3 Y M( S+ V: i$ U5 v+ t
let j 3
8 K" M; l$ Q1 M; Llet k 4
+ a& }7 E5 `1 Z3 h& rwhile[j < trade-record-one-len]* r9 v4 d+ C* ]% H/ v; ^
[1 O" N( Y) ~% N
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
6 a+ K$ N" |; T' N5 A2 ~- ^1 Vset 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)
. a" x0 Z( K: K# f5 Dset j" I0 |4 s5 a' c3 B @
( j + 1). z- U3 W: d* x! k! p( c. q4 Y
]
) j3 V' i7 z' a; o5 a5 Tset [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 )); M: u& Y/ M7 T$ l# l
1 ?3 d* e F( {" P D+ V. n1 D& }
# `7 _: P& B) v$ p1 b4 m1 Ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* `8 T. v: C6 q3 |. Y
;;及时更新i对l的评价质量的评价; M/ t4 U' E+ w5 B P6 E! O* i( `. R
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* V, ^7 p* O$ h0 @8 J3 o
set l (l + 1): B: f2 X8 `6 d8 d/ O0 C
]/ `$ ?2 d7 G* Q5 p* b6 ]" i0 ^
end
/ A! O& N" z6 [0 T8 Z1 `4 q2 D: a' D/ S# I- F8 _
to update-credibility-list M" Q' L3 }% R; \ }
let i 0
8 I( v( z& |- m; R$ A7 ~7 Q) }- mwhile[i < people]
}* x3 y% O/ B, ^( _6 R[
# X/ |# f; l- V$ S0 x9 Y6 |let j 0
{/ j/ t9 C) r | }let note 0- [* T9 p, I8 v7 W+ k
let k 0
, m$ U6 e( ]2 g( ]9 u$ w7 S# H0 c- W;;计作出过评价的邻居节点的数目
( ^. k0 P! Z5 {while[j < people]. o9 H5 O( d) J; X& [
[# @3 ]$ y8 B) [: {1 g) P. Y# J. a ]
if (item j( [credibility] of turtle (i + 1)) != -1)! \2 M6 n2 v( a" Y. s2 H4 G2 {
;;判断是否给本turtle的评价质量做出过评价的节点
6 R4 v) h6 ], D( l3 J[set note (note + item j ([credibility]of turtle (i + 1)))4 c1 R$ t" F2 Y( v5 a/ L1 p- q# q
;;*(exp (-(people - 2)))/(people - 2))]. S$ ^$ P9 y6 q6 ^& O( n9 R- P
set k (k + 1)
( j: w, [3 _ R( W; V- o]
* K* X7 \' {+ q! E( @set j (j + 1)
5 O) ]9 _2 n, c5 ~& M]8 ~. Q' E6 y9 _0 i2 F
set note (note *(exp (- (1 / k)))/ k)
1 N" T- M& R8 X. n9 @; f% {# Wset credibility-list (replace-item i credibility-list note)
1 W& R2 F+ O& p0 a8 G! rset i (i + 1)
( a, z# C4 D7 _, N& ^' _]
$ Q& k# Y! u% P7 gend, p! t3 R" u* ^3 l5 |
& p9 ~1 H7 ~2 X( Y+ g& c* X
to update-global-reputation-list
3 f( J# q+ A) G: Olet j 0
* [) G2 }7 F; {8 b0 C' Dwhile[j < people]
8 @2 T4 z7 s( X' b# W[, v) z! ]8 j- @# b; S
let new 0
8 q }3 `' s9 u7 v& y/ o- [7 G4 O' N;;暂存新的一个全局声誉% ]" B: }$ ]% L/ {
let i 0
, v, S; J) ?' E3 @9 H1 plet sum-money 06 N1 D3 ]+ s8 ?6 y; y8 ~: V; [
let credibility-money 0
* g* v, d7 V( h$ Jwhile [i < people]- c- A' _8 B+ S+ X. J" ~
[
4 i: v4 `& _- y) uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 C) ^! O; t% ^7 }: Q' oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% _/ u; |: Z- Eset i (i + 1)' \# K, B0 K% ]" {6 o$ r
]
; t5 v0 L; [7 t J9 H5 \9 tlet k 0
2 A/ k0 x) ?7 Y3 r! wlet new1 0
3 N. }: Q8 i6 m) w8 Nwhile [k < people]
9 l" F& J& u; l2 ~# U' q* D0 h[+ a* O; [2 q- [# P
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)5 S& z+ e @, s+ x
set k (k + 1)! y# s3 g( f& q
]
3 J' t. Z. a0 i/ o Z* iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, A' i/ _" B* R S. `set global-reputation-list (replace-item j global-reputation-list new)+ w0 z, w) ]- n1 H
set j (j + 1)
2 u7 ]: Q( ^) C. A]
" `) Q C( o/ o4 uend: l2 U. j; U4 I g
& K$ `) K( F5 }% _
1 E/ u8 B+ P4 B0 Z# u$ ]: v; I
3 o" w% k8 o( m5 L: H4 Zto get-color
* a( x4 `" Z/ H' x' l9 @
D/ G1 f- ] S% O! S9 l% }" Gset color blue
# l8 { d! Y' pend; G- `* K) O) ~
+ [. [. {. F# R, R z P& C
to poll-class
4 d9 t* t6 n' M$ h5 W8 @+ b0 {end2 `' ?$ H" p; ~
1 ~& C0 ]/ D. i2 }# x
to setup-plot1
0 q. s! g2 d+ S4 j/ ]0 H) w
6 q A; u9 B: ?/ H% [; R4 Oset-current-plot "Trends-of-Local-reputation"; P7 r9 V" K$ [0 `/ J! V% n' l0 z
# G D) e, `6 ^9 B, \1 k7 U, y6 a7 ^. bset-plot-x-range 0 xmax
7 G$ q, E: A9 e9 @ _% h( x
3 @+ T( ?5 P2 Q6 e7 @set-plot-y-range 0.0 ymax
; ?0 o0 A; k; u5 R/ W( send5 Z( P6 [* ]8 b. V; P5 k# y( X
H2 u' |) J; T, j/ B6 i% _4 Lto setup-plot2* {7 r' h( ~- F D Y$ K+ p! s# d
. j$ Q; m8 a+ b2 F0 Xset-current-plot "Trends-of-global-reputation"
! x4 E" N3 y) q, @1 u" E+ i$ ]4 u' a4 P& F" N" C: m
set-plot-x-range 0 xmax2 J, P$ t8 [& u* E* } z3 f
1 H( L1 I9 t' a/ O& f( v5 {7 [set-plot-y-range 0.0 ymax, D' L( p0 g' \, ?7 X0 I
end% E% k) Y( _& n: W( V! G
) {( A( y" z- R& @% R& @( Bto setup-plot3; E- Y$ `* q5 J6 _* T3 g
- b- a0 G# h# q1 j: R7 C5 ?set-current-plot "Trends-of-credibility"; J9 Y- }. U- X a( x
2 L& w; c% ]. p/ k+ M2 Tset-plot-x-range 0 xmax
! z1 I6 H7 ?5 k# o" k
3 K' D% s1 ]% _4 S7 J, c+ Eset-plot-y-range 0.0 ymax( I+ d9 x+ c" I7 w
end E# ~, K. F3 j+ u6 [# C7 ^
8 x0 x) L7 K8 z, s" j
to do-plots
5 N8 Z( h9 n9 Wset-current-plot "Trends-of-Local-reputation"
0 x; I8 c( [- m. w5 g+ ?set-current-plot-pen "Honest service"( T3 ?9 ?6 i8 O9 v% s% j
end7 r1 Q' K0 Y( S, V% C
. e$ H( G8 Y0 A6 {[ 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
|