|
|

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+ l: a" L* J) y- V' ~
globals[
7 c1 D; K' j/ G3 X7 Zxmax
, I6 D+ b) W' Q2 H& O+ D1 E' Symax8 k: o6 O0 B! @4 _6 U2 l
global-reputation-list4 C" ~ |" S$ i, j
# q0 P' \* K2 S l* v
;;每一个turtle的全局声誉都存在此LIST中% z$ c; q" O. W
credibility-list
: ~, f5 |0 _" ?/ o z) L8 [: t;;每一个turtle的评价可信度% A* y1 i$ k J8 Z6 O3 N
honest-service
. j8 ~; V& K& }9 `' l! a# K8 g$ Junhonest-service. e. d: {5 e4 V" y5 C: y% C
oscillation
3 h3 o" g& a T+ \- Prand-dynamic
) j3 P6 [, c! S$ j8 z/ E! e]" F% k# ^ b z# |
4 f. r B1 b3 W0 M. t7 c; L* \turtles-own[( j" z0 Y3 m( v3 H' U/ ^( x/ j0 \9 a- W; S
trade-record-all/ b1 j" r0 ^* p+ D0 g4 ~) l# E
;;a list of lists,由trade-record-one组成
6 d. p! F" ~( }% `' q2 B6 Mtrade-record-one
0 f$ M3 Y5 ^( N4 Z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
$ V4 q" V9 F. [ O2 a
/ a& r" H- {/ K" f. V' p! s;;[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]]
( G9 `4 D; D& {' g, O0 ctrade-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]
x i4 O% G7 V6 r- j# i" j- r9 ncredibility-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$ y, C, W. K! `! f) J, O' T
neighbor-total
- L" U1 v1 i: h4 n+ Z& g;;记录该turtle的邻居节点的数目# }! j0 k l$ _& H! @( j G" B9 l
trade-time
9 i: Q+ X. C' d+ D! q;;当前发生交易的turtle的交易时间
: [2 g9 B9 ^5 D* e! p& t- sappraise-give/ L8 W* C6 n! l) \& G3 F+ V
;;当前发生交易时给出的评价6 M$ M! r# N% I& h+ | y; T
appraise-receive
]2 ~: H4 n/ l) B6 z' T: K( |- Y;;当前发生交易时收到的评价; E2 |' ~, R& i; V9 \. q4 u& |
appraise-time
. q4 u8 r- A4 ]$ z;;当前发生交易时的评价时间
4 Z$ {; x& s$ O9 F7 zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉, D8 d0 c4 o( j, _
trade-times-total
! S+ n$ n6 p$ r0 l8 }1 p;;与当前turtle的交易总次数5 J2 B) ~7 \- G5 S2 j
trade-money-total1 g6 a' M! i) l2 L# G5 H
;;与当前turtle的交易总金额
9 f) H" e2 h& K* ?* M" o Y( rlocal-reputation. ^5 ~: J) w$ }/ n6 G
global-reputation! e# J# o+ i& `7 q* j7 c+ y
credibility
. Y* a7 s" g, |2 V6 U( G& ?' e;;评价可信度,每次交易后都需要更新$ I! s! I" G' {; x6 ]
credibility-all. c" D$ j$ \, 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. Z5 \; r* l$ A9 h% w
$ Y, k: Y4 i: I" A1 w" 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# w$ d. E$ R O) _4 b2 o7 Z
credibility-one: b0 N6 R0 ]1 S4 x& |; R, q( s
;;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: p6 {- i) D- O, |/ p0 r
global-proportion5 L3 L1 l. i" I: b8 E7 ^9 l
customer* c" W- Q9 W' _' ?, P" g6 o' F
customer-no
1 o3 |5 c0 X3 H' H; `* T Xtrust-ok
6 Y2 Q+ A( s' k5 Y# A% Ftrade-record-one-len;;trade-record-one的长度8 k' }3 s V; t! a' T# [
]' x& D; Q, c+ N' x- p( @
& \5 _ O+ L$ @' m) ^: I;;setup procedure
1 {$ s& B( E2 ^! {: M
8 z9 W! m: G5 j5 r( |, H2 m1 Bto setup
$ {: n' z ? e7 X. E: A8 j" x( A7 f3 e9 _* z ~/ q& f
ca
% p, r3 b$ @* D- X4 t' J
' O4 f3 W" J& s5 h! k- Y2 oinitialize-settings* s2 n' M, u7 @
6 g. o5 d7 |* g6 i) Xcrt people [setup-turtles]2 {- B/ S: L: \ M5 ]5 H7 o
' d. ]+ K/ l/ i B; [reset-timer
$ u8 X5 V: \7 d- g y2 a# l+ y$ o1 X4 `! I' w! _
poll-class+ p- I# n+ D$ k/ `' u2 L
5 F$ Y6 L+ c% N( Hsetup-plots
, @! [: W* B4 j# q, O3 Z' f% f/ x. h3 {0 h" W7 K* h' ~
do-plots
. M) n# @7 ~: p: ~end
2 u( `% r# Y( K% P9 U
j2 S7 G/ R" `1 ^/ D ]) J8 kto initialize-settings0 b1 P1 t: q' x' s; u: n
% t" _/ X6 B" v$ X3 Q
set global-reputation-list []
! j& M3 Y+ k5 V, M4 F; h% w" w' R5 j8 R0 C) |; @6 u+ _
set credibility-list n-values people [0.5]$ P+ o) D0 U+ G& \9 p. J) b @/ p
. P6 M" i) r6 q8 K$ t, c* c* f
set honest-service 0
. k9 W0 x3 o0 D; U# j( d% h+ `; L5 q0 b5 j- w3 H
set unhonest-service 0/ G" D, S4 y8 u* r
7 Q i6 }0 R+ Vset oscillation 0
' c: i w6 k; D0 M4 P2 \
, L/ x* C/ p9 t" [2 l( L' P' T) rset rand-dynamic 0
8 |0 S* ~) `0 Y$ b* wend
& |1 o0 h7 v5 e0 R
5 k- M! `0 h' q( v |to setup-turtles 1 p8 z- A& K( z: M
set shape "person"
: @( j: K' n8 u0 z! I' y3 ^setxy random-xcor random-ycor) F, r# v8 ?$ [% I8 [7 s" D
set trade-record-one []' o1 s: r( y9 ?6 `4 I
- B! P) E* n. ~) @
set trade-record-all n-values people [(list (? + 1) 0 0)]
, o0 g& p4 Z3 U: `+ |( T" \! y4 k
& G/ o5 [! f# d9 {- V' g0 Xset trade-record-current []9 g, ^) e$ i! M6 Q+ K
set credibility-receive []7 j8 o7 t) X- b, x
set local-reputation 0.5
9 H- I! t& e! o9 F$ _: rset neighbor-total 0
0 q& r8 J( o1 r4 t# M* _set trade-times-total 0
* e0 ^" j2 ~ G* k4 Z- dset trade-money-total 0
5 F. }" I [3 t R6 Eset customer nobody
5 _* @5 w* p# Hset credibility-all n-values people [creat-credibility]
' }" T. n9 f2 h. H2 G$ Vset credibility n-values people [-1]7 Q/ u$ ?! C9 P4 d/ k v
get-color1 G* v$ E |, W' V0 L) ?' r1 p
3 T& U" }5 A$ R# Vend/ Y) h7 n; d, Y
' d+ X, |7 S) @4 J3 a W" l! J; p
to-report creat-credibility. ?8 D i' X! F3 N& N( E; a
report n-values people [0.5]
+ p4 L: A. R9 V! Uend9 y& U: S# c! ~9 f- O
8 `8 h) T) L+ z1 O8 ^8 u. y
to setup-plots3 n J' ]2 Y/ u# J2 _+ k7 p
) m% X2 X; G! Q1 f% N
set xmax 30' o6 N$ n8 m4 {4 |" h2 x
A7 x$ `3 M! b& |3 N
set ymax 1.0
+ n, Q) `! t: W) o+ e U# v5 h) ?! q/ K1 @; m) i* u
clear-all-plots
. Y6 T* k8 g; ?
* Z& v5 i1 i+ r5 I1 d9 p' Qsetup-plot1
( L4 w+ v* v" M6 G Y4 X
# d$ `% C7 b+ d" ?setup-plot2
: u9 J7 f9 j2 _" K; j
5 r6 o+ h' j: i3 x: `" ]setup-plot3
* U$ f% D. l" Eend z0 W3 x+ z" e( v7 k1 ?: d' {
7 |4 W* A9 Q4 q
;;run time procedures
6 y9 Q" V3 C& ~ d2 t* S0 t3 A
9 v4 H8 T# K" I3 A' }1 {2 U" i: Ato go
9 ]- i, o9 S8 x9 K- o1 x1 E" r9 `: u
ask turtles [do-business]# I4 z' |8 ]8 V g) I& j( p
end
. F9 a j* s- N7 p( c
7 D b, b: [' K4 Q0 r8 pto do-business 2 u q9 Q- u5 [- y
# e8 b. @% \) J2 c( E# y2 D2 e( {
rt random 360
# n) p7 e3 s# W6 }2 p% z0 p
1 Z/ N* |0 ^' w1 B; H* B* N( x0 Ofd 1
- j: U9 d* q& L. H# W* _! }, F/ Q) C( R+ s7 x9 k. F+ h' ]$ ~, d5 F3 ^
ifelse(other turtles-here != nobody)[
2 z4 o$ X; |$ P/ {( N. G7 y- j- X. e. `
set customer one-of other turtles-here
5 G6 ]' h( A& L0 i1 Q4 }: p2 E6 U+ }1 p& J" i
;; set [customer] of customer myself3 w$ n' e: O& D! x- T5 S0 M
& ` N, i* L$ _+ m+ X, Eset [trade-record-one] of self item (([who] of customer) - 1)' `( i* V/ c- G% L1 U. A
[trade-record-all]of self, L( ^; i1 v7 R
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 }( L: O, u6 c6 R' O- x' W1 a( O3 h& b* X) i2 T
set [trade-record-one] of customer item (([who] of self) - 1); |8 ~- Y5 f# b- D- w7 O* H
[trade-record-all]of customer+ U* F+ J9 F0 y7 e
' S; B- u( n+ L- E
set [trade-record-one-len] of self length [trade-record-one] of self
) x, _1 j; S3 y7 [ y+ I) i" k2 V! }1 S6 _ a7 W# \& c/ M" d
set trade-record-current( list (timer) (random money-upper-limit))
# p, b, u9 c& l- ?4 F5 Y0 w
' A1 [ J9 P) w4 F; H, W9 ~ask self [do-trust]5 h& \5 p( B' n/ C) t
;;先求i对j的信任度# O* z1 C/ n U* s. U! A( x
, P9 O; z, b% ~2 X W% [
if ([trust-ok] of self)( }- j( ?- v( Q/ I2 t4 C9 E+ d( j: {/ m
;;根据i对j的信任度来决定是否与j进行交易[9 Y/ ^: [, I/ u# e9 P$ m" N4 u
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; g; R0 K+ m5 I4 l% @
/ g8 e7 O5 Q( q$ P
[
2 x6 C# ^; N5 j+ W$ |
! B6 I, [5 A5 k2 {' H( q Udo-trade
9 `% g- U8 @9 e s* E
6 ]5 v; C/ r3 G) W. L& nupdate-credibility-ijl5 j v! j6 Q8 \6 Q2 `) z) E2 K! t
5 r( q7 k% Q" f" w; V5 ^) ]) A$ H
update-credibility-list; I1 _$ N% d' F( J& n
; P! K) H7 V8 r( w# T: f4 Y
# x* c3 M$ K0 X
update-global-reputation-list% A% K' ?$ p9 W. s# b$ g8 ], i
1 U) m1 ~% ^" ^' l7 C& w( K5 G1 Npoll-class+ G( V- |8 u# I
$ d2 B+ R4 `8 k, l4 {- o! iget-color/ Q$ b6 } D2 J) I9 ] T3 p
: f7 s# P; j! }* p N" W]]5 E d0 ]4 d2 ]4 m$ Y- x
; ^7 p# w4 C- N;;如果所得的信任度满足条件,则进行交易
% V2 H) H& V8 m, R# {! t k) ]' h- p* W. l3 q' d; X5 G
[
7 h& [/ h3 G; x; R+ ]1 t- n. X2 [ c; z+ k' n- K( P
rt random 360$ K7 P3 q% N |- V1 m1 Y
( ^. @0 F& r" ^4 rfd 15 e0 r" S9 d+ }
: A) X: Z: F! w$ g/ c4 K
]
; F6 I# Z: m$ d d; V' w+ _) R6 k/ H! V. D6 R& ]3 \4 ]
end+ r( R7 [2 g e1 n) w4 N9 K
% v3 ?9 N5 U# rto do-trust % X( j7 Q( Y& Y6 x+ i4 }
set trust-ok False, F& @( h2 u2 i
4 `" q6 a# h+ U$ A l
2 A( v" K* f* Blet max-trade-times 09 J: ]+ D- u3 t4 L N3 e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ ?& E% L4 S/ U# A
let max-trade-money 0
. n8 r q" k2 t6 [/ r- xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. ]3 _6 ~, a3 D3 T/ H+ b$ j |
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 |3 D& k0 L' N' v9 |! ?/ l# r, G( K& [' h% k Z: q
: g4 O2 G( ]" X( ?, F- A
get-global-proportion
" n* ? a, L$ alet trust-value
7 l; u( B* A+ i% ~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)
: X6 l7 ]6 q$ n7 ~! Sif(trust-value > trade-trust-value)
* ~5 t% X ~1 W( H[set trust-ok true]7 L" e" ~' N3 o% H5 T& h0 @
end4 w8 l* f' L& Z8 @: ?5 }3 ?: ?0 K
- ]# e7 n. F. q$ {' k$ Jto get-global-proportion
# u; X% V, Q& E$ D0 t+ iifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 x* U: P5 |7 Z, t[set global-proportion 0]; F9 ?! q9 S5 Y$ [, o x6 G) G4 T, h
[let i 0
; R! S J- z% _' F2 slet sum-money 05 y9 @& N7 ^$ P% _9 [
while[ i < people]! p+ _* a: B8 d2 m
[
# y$ P! C( b* L+ D7 |4 e# Mif( length (item i
& ]" U6 \% u0 U% x[trade-record-all] of customer) > 3 )
T5 E$ r6 o; X- l- C7 X* v9 {! d[( n9 }& ?, S B% W% Y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))- J9 q! T7 ]/ G% }. r
]" D" d% G3 y! ]0 c3 F) g6 y' M- t
]8 X; s: H! @$ B2 s. W9 d6 U
let j 0" }# n) D p) [ R) I5 s& ?: a
let note 0; p( V9 ?9 V, l
while[ j < people]4 z3 V" h# V' `5 U: \* o
[3 [7 h2 ?; ]& f7 @1 p$ @5 Z% o7 n
if( length (item i
2 Z) ?8 A. j- Z, y" s[trade-record-all] of customer) > 3 )0 o0 D& P _5 s- a) S0 Z/ Z
[
. m7 s! _* B% e8 @: V2 Pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 a6 h$ u; C( p$ U2 v[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 A) w2 o" Y/ p; o: e
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! ?) ?1 ] N' \9 x; @]
; S* I4 E- Z! t: U8 ^' ]. b( u]
% w' }; d9 f2 u& K; x {set global-proportion note) g, r! a) I$ U9 K
]
* b" M0 \& }+ v& z0 aend- j/ K# c% ]3 t1 v7 P% y# h4 c
8 h H, v2 I0 r! Vto do-trade! h6 T( e$ G$ Y$ b5 f' ?2 o7 D
;;这个过程实际上是给双方作出评价的过程
6 i+ P9 |1 D4 z) gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 ~( q& N2 M' c- E5 R5 G. kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: j5 P7 D1 }# S& Oset trade-record-current lput(timer) trade-record-current
$ j: l2 m* K& ]) ]: h+ v! F;;评价时间2 q0 i! Z- [/ ]' s- T
ask myself [
4 R E* K" V! Qupdate-local-reputation6 n+ N$ C; h4 P
set trade-record-current lput([local-reputation] of myself) trade-record-current& T/ D- r% g( O# W& d* a" L
]
# t& x0 e! s5 m- p ~4 x3 pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 M6 M5 h2 K4 u) T
;;将此次交易的记录加入到trade-record-one中- O" E, N$ e8 d; r7 G0 ~
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% d5 r( R+ n2 N* Q- {7 A
let note (item 2 trade-record-current )
?' i1 b" {) wset trade-record-current# o0 n5 `* W: j G) }3 w
(replace-item 2 trade-record-current (item 3 trade-record-current))7 g; |; L) x- |4 ~9 ^& D0 }, P/ H
set trade-record-current2 l( ]. u- f3 W8 u
(replace-item 3 trade-record-current note)
: e) D& q7 s$ r |
6 k S* V6 o v- h' E: K7 v' }! A: W: w _, o4 L! u
ask customer [8 U: t. a) K8 e( x7 @- _
update-local-reputation
, F% W8 A5 i. ^set trade-record-current
) H5 Q5 _8 F, P. y3 V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 G6 j% p. r G$ }; o3 i, Y% v0 E) v
]9 \) k! J( N: E; g! P: M& _1 s
; D! S/ [ N0 k. q' ` R, l
' C- s) |9 I0 z. W% |3 {' A
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
; K5 ~% m. @7 A. M. ]: u
6 {3 m9 Z' N; @* V, V, aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- U# C/ M6 O% _7 P;;将此次交易的记录加入到customer的trade-record-all中
* X; _1 o' o& s' I8 ]& T. o( Iend
# J( O s( ]* _6 J
/ }& X, L. \' a1 W, ~to update-local-reputation- t) [9 o; ]4 ]3 B( w3 U& U
set [trade-record-one-len] of myself length [trade-record-one] of myself& V' C5 K( s6 N9 i4 O! f1 e
/ a8 \5 T4 S. Y- k" r
9 f2 ^- t" }# E( Z) r/ P( |;;if [trade-record-one-len] of myself > 3 5 O) i6 L' J9 a* q, u
update-neighbor-total" N" }1 b3 E/ P) t& @
;;更新邻居节点的数目,在此进行& d! P1 B. B4 M
let i 3
, V$ w6 P+ W4 j: J8 G! |) tlet sum-time 0% k: {# U/ \# R8 ?% ~1 k- W
while[i < [trade-record-one-len] of myself]
, n9 m3 M/ b% w6 @+ `1 y[0 [9 |7 X |5 N% {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 k. }% Z6 Q6 c4 `+ {- v$ s' L
set i& l5 G; ~! p! T. n
( i + 1)
+ A# G+ W9 Q2 U9 Q+ `]. ?, {) K2 l3 Z) W$ a5 V; f' L
let j 3) z. w' _8 d9 U' j
let sum-money 0
5 Q! B' Q1 P ^+ X2 a$ ^3 ~' Zwhile[j < [trade-record-one-len] of myself]5 M4 F) G9 _/ X6 k
[
+ }- s7 q0 k: V N, 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)# i* x/ |# y6 T ^9 H& a* W5 B
set j4 e* m. m' t6 c8 g- o& i5 Q& v
( j + 1)" S: }, b- s6 e; n
]: D1 y3 U" ^& b
let k 3* Y1 w$ d4 f( L; x4 N- I4 C
let power 0
& c" N# B2 T) X+ l$ N! k; jlet local 07 ^4 ^/ P4 B8 Q2 }
while [k <[trade-record-one-len] of myself]# r- C2 l9 v; W& G. F/ `, F
[
% T! r8 M6 d9 n1 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) / D o! P1 `4 _
set k (k + 1) G2 q" ]' I" z& x2 C* ?
]
& _% t% m# Q. Qset [local-reputation] of myself (local)
& B& b1 A/ y+ m# b% B2 ^7 F0 ^end
: m0 h" c( V$ X4 {% r" _, V+ S
5 E$ c5 S {; p* Pto update-neighbor-total
& l3 W) q4 Z* X* I7 {' ]7 ]
m3 I* B" ~& {( s; oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# T4 @. @* p( \5 _) k+ ^. R( ]! r5 z0 g
6 k6 e$ _0 h* X$ n% send/ f, m3 R7 u8 z
4 |0 |( L( ]6 b. b8 U
to update-credibility-ijl
' P. T+ Y% v2 a9 b2 @
2 x& f; U' i! W! C;;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。9 w" S9 o1 X* a' H% H
let l 0
$ ^3 J7 F1 R. c" o* Xwhile[ l < people ]: D. B5 v: }7 {0 W" H
;;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1 Y9 j. Q- ]2 k' b2 ?
[" y) W5 y2 `% t' W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 S" m1 z2 S4 d3 I Q
if (trade-record-one-j-l-len > 3)
7 y+ ]. v1 a0 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-one6 o) g! S: q; g8 W
let i 3
0 v7 s* X$ ]2 W |6 \/ b ?$ a4 Qlet sum-time 0
# H! p7 L0 z6 e! \/ |: C" _/ [! awhile[i < trade-record-one-len]
5 j: C$ m4 x6 {* M. \; E! {; Y[; e' \) K! [+ [4 `' |% ^4 @
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 E/ \% V/ M U7 b! w
set i
5 I |3 m1 s* Z' t# l5 H5 o% {+ G# D( i + 1)
8 `# a' v/ w: l. a5 Q: x9 v2 g# G]8 P5 ^2 V% ]$ D2 @' y
let credibility-i-j-l 0
% ?0 j0 h1 U& H+ ~% V1 c1 T;;i评价(j对jl的评价)
X) J7 X) Z* klet j 3
# E& y! r6 ^' r# q; Jlet k 40 ~5 E- W6 P9 V2 q1 F2 g7 w
while[j < trade-record-one-len]: f, P6 z7 K- d5 P* s. v% ~- O( O
[
, W8 E. p8 t9 C1 X, zwhile [((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
! _ W5 E% K. |$ D& Jset 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)/ Q1 y& P4 d* V4 _& X/ N, t4 i7 W. [
set j1 K5 @( d: m# _9 {' Y+ L) g
( j + 1)
! K. e. f2 {4 t: w0 []
5 x0 N2 p1 Z. f+ j ]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 ))6 V0 Z5 n' N7 y! S0 _: F8 ^5 S- b5 M" b
1 S6 N4 |; s9 o. B7 e$ ^
- c: `' v; h, ~5 m* `0 hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 L- s4 {: w f: q+ _! F- P& ^9 a
;;及时更新i对l的评价质量的评价
$ r$ v" e% B% N- a5 xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 Q6 g( K. W% H
set l (l + 1)8 K0 ]: _2 U! D0 @
]. A2 R, T$ p: v6 z9 P
end& A3 |; u$ W O$ r
$ Q& ~9 C* K5 T7 P# fto update-credibility-list; ~1 X5 |$ K t9 c
let i 08 O4 e4 j8 c3 X" c& [
while[i < people]
/ N9 R% K3 t% C' h- Z, T[. M) I+ l- |- N* e8 v9 R, D
let j 0
" z# q o3 ]" J- \! Vlet note 07 V: y: ^+ z/ H: D. r. o
let k 0! k. ^0 k/ o; Y1 d
;;计作出过评价的邻居节点的数目
6 T. _+ W; a0 h9 U! z( f5 g+ |while[j < people]
! T" {" T% ^+ @3 x; R[
% v7 {, S0 d3 w% \5 F# \ G. Bif (item j( [credibility] of turtle (i + 1)) != -1)9 ^+ x3 q. x! p4 T X o
;;判断是否给本turtle的评价质量做出过评价的节点
: N+ h+ A( ]+ `% b[set note (note + item j ([credibility]of turtle (i + 1)))
; ~% T' j8 C8 N* y+ P$ ];;*(exp (-(people - 2)))/(people - 2))]
; m1 `; h. K; R1 o* {set k (k + 1)& j+ F& s4 c5 P$ o( F
]: J0 X0 ]5 t! J# v3 o6 G
set j (j + 1)
" R( s' }9 | R5 h]
8 C; {* I1 a2 O& `/ Hset note (note *(exp (- (1 / k)))/ k)7 Z7 Q9 l2 q. r' `7 p7 Q
set credibility-list (replace-item i credibility-list note)
7 s M y9 X7 pset i (i + 1)
7 V; R+ o$ n+ ?5 q( c7 c]
. y- W U( ^9 J. m2 O" D2 Wend
2 Z2 w o( ]: |- _. y( b7 o m w/ ~1 a5 t" f
to update-global-reputation-list! N- [. h; X$ ^& J
let j 0: D! `. P9 ]0 G) b/ g. P
while[j < people]
5 k G# w T* O8 s# q, ^; Z[; J$ I. V( G1 E/ i
let new 06 F0 q/ s( E1 ^( h. Z. `9 n
;;暂存新的一个全局声誉
& V$ B3 ^* j6 [$ E) |let i 0
0 A; ?8 i: y& ?( b7 A+ Plet sum-money 0& a' p5 {2 y/ M) z% _& D
let credibility-money 0
: S7 O" x/ A( Q& }) mwhile [i < people] X/ k$ t# h9 |* R+ S9 _; @+ {
[
$ \+ g9 y" M8 Vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 Z* N+ A. b! \' x- t6 Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
5 A4 t6 Y8 Q7 a8 s d- [set i (i + 1)) I; d/ t4 e; @* l0 a
]
2 T& o* v& A0 T6 R0 ]" z/ Alet k 00 _2 j5 F3 m/ O; A
let new1 0
* U- H$ b8 F2 _/ A8 r2 q& Gwhile [k < people]
( P6 L+ s' @, l. u: G[
8 |0 m1 l# t- xset 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)
! B$ A6 k5 }* ]# n1 c# X1 k. r7 Qset k (k + 1)% m) x0 g- H) A
]
P( K: w U; B" D2 Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ ~9 U& Q4 ]; ]5 S& j* ]% iset global-reputation-list (replace-item j global-reputation-list new)
$ g* q5 a) l! U6 ~set j (j + 1)! V, w, C7 ^/ D0 e; E( f- q$ {
]
, G% \4 e c$ T0 mend
3 [9 o& V$ Z- r
( M' e" t9 u# I8 B
) E) Z/ Y) t7 t% d$ E. X# D, E) d8 b+ M* G6 @
to get-color" _5 G, q( P9 N3 m
2 ~$ V0 }$ s5 \7 F% S
set color blue, n2 L/ `# I8 E7 }) u! ^7 m
end' k, p5 _. J( X: o, c* a
" v |6 p% z* Q! Lto poll-class
: v. j8 ]0 Y' t9 K$ _end! c) X, z" h! q
* L. f" k; c. l8 M, |2 R
to setup-plot1
# I) |! M8 @% `3 B% s2 k( }$ l9 c* a+ C
set-current-plot "Trends-of-Local-reputation"/ p) @9 O8 [( a
1 K1 I/ ^ m' [/ j4 Uset-plot-x-range 0 xmax8 U% u' |- ?4 x/ F
( L: z' q1 h& |* qset-plot-y-range 0.0 ymax
. {: Q9 W& i' \' Q( fend5 X7 ^; P" e+ x7 |( T3 Y4 G
/ r" \& L. M4 p# ?- J9 i+ N) Z/ nto setup-plot28 Y6 k: k8 ?- c- V$ l. X/ i9 [
& u/ K3 \: p& z- o1 Y0 z+ L9 vset-current-plot "Trends-of-global-reputation"
) W, e6 ^* S/ W7 V8 \
( ^+ Y* Z6 c$ ]1 V, D" u; Dset-plot-x-range 0 xmax: r8 D4 ^# ^9 F1 V
G( z3 w5 J. s B0 U" U$ Jset-plot-y-range 0.0 ymax
, M1 h9 M z! A4 G9 c* B% \ gend! W& a9 V8 M" h G0 u! U
8 x0 T! @+ ?( z1 H! g; e" Gto setup-plot3% j* x) W4 r# U5 A1 v
2 k' x, e# j# @, ?! Q( P: O
set-current-plot "Trends-of-credibility"8 G' z6 S6 Y2 |7 }- ]3 w) r2 C. D; x
8 S& U3 g4 [5 ^set-plot-x-range 0 xmax
9 _2 A' s v: b3 k& U C7 `
5 I/ i# K8 p! C F2 X& uset-plot-y-range 0.0 ymax. Q$ ?# z. N2 W' ]$ }
end# x, Q% r. i+ T7 R2 p
2 r W3 C+ t& D& d7 j* N* I( I5 |to do-plots8 w1 @2 T! o, d+ ^: n% h. X
set-current-plot "Trends-of-Local-reputation"3 P3 q) C1 A2 Q8 O
set-current-plot-pen "Honest service". B% M6 u" W+ ]" _# v8 w
end
; i# F7 l q8 a' @# [4 {- }& d. g' b9 L) ?6 f
[ 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
|