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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2 x$ M' u7 A' u2 F0 u
globals[9 o( N- x1 G4 p
xmax
# W0 A5 m4 Q) |+ |+ e1 s, l1 r% Nymax
0 ?( |/ G& z6 h! [, Cglobal-reputation-list- e# I" i/ z/ p
( _2 Z+ k, v8 l3 h1 O1 i) O
;;每一个turtle的全局声誉都存在此LIST中
G+ A6 i4 h) V/ l* P! Scredibility-list
G* m `) W* D' r1 R1 X0 A2 r;;每一个turtle的评价可信度, @' @5 d5 o' G2 t% F9 y9 J7 ]; E
honest-service
7 f% Z D4 w2 R* Y) F0 ?unhonest-service
3 K& u, p/ r4 C1 [oscillation. `! g! b7 R" w1 h- Y4 \7 \' i
rand-dynamic
5 G6 K- {7 i" L& m], }2 f; F0 ?# R: {7 a( q
7 M: x9 l5 Q2 h# j) B- y, jturtles-own[
0 g8 g2 Y; \6 P, R3 f+ g8 `; }trade-record-all
% n; w: ]5 F6 o9 u4 y;;a list of lists,由trade-record-one组成" V6 b' U* y( @8 v
trade-record-one
$ K$ ?1 A- S5 g;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, _5 C2 a9 H' N! B
9 q! v2 ]% D* b( Q! k: e$ J;;[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 o& ]$ l, e6 T9 t
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]
) H( H: D. C% N; w: Xcredibility-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% T: \5 E% c% z4 aneighbor-total1 b7 ]: z+ v5 I- m; v+ l2 t9 r( N0 Y! ]
;;记录该turtle的邻居节点的数目
" t8 p7 L/ c- t, l# H) B* K4 b; btrade-time+ v% p. n7 P9 I% e
;;当前发生交易的turtle的交易时间
' U; v7 f7 I- u5 V/ x- zappraise-give
! M( _( e$ o0 t7 y- w;;当前发生交易时给出的评价3 Y* L' }/ O, g% l( q0 W9 O4 A3 Z
appraise-receive" v4 ]) g9 ] a% [" f
;;当前发生交易时收到的评价
w" P5 W! ~. R! I3 \2 i, jappraise-time( d! T$ R$ }: m) L) ~+ {
;;当前发生交易时的评价时间% T% n8 [1 O& ^0 \4 ~4 }* ~) z7 h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉; S \. a% T8 C$ p7 a, a. e
trade-times-total
5 T" p) c; c ^# |;;与当前turtle的交易总次数6 u! P9 q+ j5 u4 l3 B
trade-money-total4 I5 q8 x5 O5 D1 y4 y# X9 o
;;与当前turtle的交易总金额9 Y& r3 Q& P5 P" p& j; o" Y
local-reputation7 e) Q' r- N9 i3 A9 v( E9 a! i
global-reputation' r7 G2 U4 K( k$ f, X A+ k
credibility+ a7 l. c# O& g$ B3 s: d* ?
;;评价可信度,每次交易后都需要更新
1 w# n3 v/ h, o% D( P6 P; m7 hcredibility-all2 O; T: I' D% q3 V: R0 w3 g
;;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+ M7 m n3 {* e. i$ f& k p
0 X$ s" _ A. t& L+ n5 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
7 T- V4 _9 b9 r) K6 s( A/ }- vcredibility-one$ E" {/ o$ G* a; h' A$ O
;;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- H: b% A7 b1 Q5 o2 W* _3 j
global-proportion0 ~% V$ W0 S C
customer
3 O, s( \( Y9 A- T2 F/ Q q5 _customer-no6 ]4 h" y. p4 E( p( O; @' R
trust-ok1 A: ?9 D4 K# T( F" A9 _4 u( Z- w
trade-record-one-len;;trade-record-one的长度# ^- Q0 Q, ^: Z! K& i$ x
]- @# B i& W/ o
% W' i( P" v2 ~' m5 t6 b% U;;setup procedure
% A: |. Q9 y' _& _- a x+ p; E3 R1 P4 _/ k* f2 o) |
to setup
0 u" ]8 J( J) C, d" B5 O0 j1 N' S' g$ w! {5 m
ca/ `( o% ~- V6 @' t6 Q
* U7 n s5 i* A0 `& j* e& p
initialize-settings( l3 U! K1 V1 i
7 U: ~2 y6 p8 Vcrt people [setup-turtles]
, T- o% q% n7 H' C1 U
( V/ a6 [) P, [, u) a$ ureset-timer
1 b, W2 X) v" B3 b c4 ~* j# X8 m; P! Z( {/ f
poll-class; Y3 y4 `2 ^$ D0 p
" ^% x+ f; L2 O. z9 d
setup-plots
$ f* f- ?3 Q- R5 p' e( g F$ `% i
do-plots9 O- X* C, }2 S2 }
end
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to initialize-settings
, H* E. d i! |& R& j: z. D7 D T" S% q; b2 g- P' g
set global-reputation-list []# B' Q2 ?7 ~& ^6 }: j& Z( P
+ i1 y6 G% {, k+ q
set credibility-list n-values people [0.5]
/ Y# ?( l; z4 U2 e f4 _6 h3 l
set honest-service 0) l' F+ O+ z& M; y
! G, V* v" F; g# ]0 sset unhonest-service 0
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set oscillation 01 h* u$ T; S2 }8 u, B
' s# i, F" q) k, [( q( H2 M
set rand-dynamic 0
) C* F( Z; |' K3 T; F0 d/ ~0 yend G5 y: I7 g8 S: o4 H0 c8 j: d1 N
2 B7 G) Q/ Y0 p. A- n
to setup-turtles
1 O; x/ W. O* X( h0 |* M, |$ @set shape "person"# E i6 q/ R( D4 a0 Y8 T' R
setxy random-xcor random-ycor
Z5 r1 n" o/ K0 d8 B8 ]set trade-record-one []: ?6 K1 l3 e W- k. i
( a9 R/ n7 T# C+ _/ Oset trade-record-all n-values people [(list (? + 1) 0 0)]
~+ l. e5 i- j# S& h2 [
% a. E2 d' M" p) v7 |set trade-record-current []
$ J' x. S4 r1 A, wset credibility-receive []
& L2 ]! ]5 \1 C/ @) k2 k3 Z, _set local-reputation 0.5/ t% ]4 U) _2 J) D
set neighbor-total 0; D c- S7 O* K: f4 Z$ C; ^
set trade-times-total 0
& T0 B" a% d* @1 z# a9 V* X1 Hset trade-money-total 0" D7 r9 t' l6 f2 m0 q q
set customer nobody
! R2 R# Q) Q: G" X, v: _set credibility-all n-values people [creat-credibility]8 i5 s- D& |, N. R( t
set credibility n-values people [-1]2 c8 v) Y k1 {7 F
get-color
, {0 Y. F6 ]: y) b% t$ u' z- F% a
end4 I0 r& M6 T1 g" q8 B% Q, {7 l/ s
# S! b) Y* t* W0 L% k# n2 Eto-report creat-credibility
8 @- ~4 `: `8 t1 A3 }( e' wreport n-values people [0.5]
/ ^( c: z2 C: x3 S+ i3 Oend
' C, K: [9 w1 h* N6 [1 M' |+ M. ^+ H* l w+ J5 ]( x
to setup-plots
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set xmax 30
% W& `+ _1 l% J8 O- H" O8 _
; h0 G5 \- K0 R! L3 w- p) g8 cset ymax 1.0$ V1 L; [1 e2 _( N+ c
+ ~# ]6 V* l3 P( g _3 F# Z2 o9 v9 _
clear-all-plots: @/ }, H0 A, v9 j: W! ^: B
" |" U& G$ b7 [ D9 e' \9 J9 W$ isetup-plot1
9 T# O. \# @4 ?& i3 k* @/ W( r1 N; M2 ~
setup-plot2- `- \, r- v2 B: l! }8 Q F
/ m; O/ t1 J' x) ?$ L4 Xsetup-plot3
* @- q/ w' V) Y; {6 g, @( P3 R" rend
4 Q6 {$ ^0 n: F( F" q) q! _4 M% b! C: c2 _% i
;;run time procedures
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to go
# c C( M6 {- ~9 |4 \- ^ Q0 |2 |. Z/ b7 |. ^) P" T; X
ask turtles [do-business], K7 W+ N2 _1 N/ U4 m+ \
end
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8 z7 N1 f5 j f' w) `8 u3 Y2 [to do-business ; U' h* `$ k/ ~( U. r& _; G
" W" b" `+ \7 G! @+ c9 j
/ m' e# k9 z5 F9 Y- nrt random 360% ?0 r3 }" t- E: e7 s' o0 W
6 T* R* X- `; { bfd 1
6 ? H9 S6 B& [! ?8 N) E3 k; x$ S1 z8 B. \( f1 }
ifelse(other turtles-here != nobody)[/ j5 [6 d' e6 J0 Q! B" b
8 V' {, s# y% cset customer one-of other turtles-here0 t1 c. ^0 }" {! D$ R7 [
2 [( I7 R* a: v! p0 @ W6 @. @
;; set [customer] of customer myself
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3 C( l$ L- \6 ?# nset [trade-record-one] of self item (([who] of customer) - 1); i6 d" ]+ j) w! m# y2 s
[trade-record-all]of self
( o! V0 [/ C) E) P0 G5 r: Q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' ]9 Q$ z* H8 x7 f; ]& L3 T. \: r) D- O0 ~* T/ m2 ?
set [trade-record-one] of customer item (([who] of self) - 1)& ~( q4 V0 x! U# Z2 W2 e. ~8 ^
[trade-record-all]of customer. `1 b# K+ _9 T& o! `, ~
& L1 O |, \0 @. H
set [trade-record-one-len] of self length [trade-record-one] of self( w. b3 x+ S* k( b
H* i/ W& a! c9 L9 b
set trade-record-current( list (timer) (random money-upper-limit)): m9 A( i1 Q F
* N1 r) `8 N" n; I. P: [
ask self [do-trust]$ D. j% z9 F$ N; `* m' J! A v
;;先求i对j的信任度& [# U% L) E% y8 Z" _1 k3 y/ G* S
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if ([trust-ok] of self)3 m& { j+ s5 Y( z4 ~
;;根据i对j的信任度来决定是否与j进行交易[9 [' j; g) A4 C/ W
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
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do-trade' r2 V: R% K8 M8 j7 z p
0 I& d q, ^) `1 v- m7 ?- Oupdate-credibility-ijl
9 G0 u0 F& T/ o; u' D
, l5 X5 @) W* z/ q$ u+ k! W# }+ `( Lupdate-credibility-list
, R# U% V! I- k9 @9 @' m7 i7 D1 z# h! U5 d/ `) [
' e3 ]. d. g+ o- ^) `: S" I
update-global-reputation-list
6 D! c$ g& W0 R6 L0 V% t$ u2 s: {& G3 r9 u4 F2 g) p) L
poll-class
- I& i9 A1 e) T# K5 @# e& y, S* }- p8 \3 h! {
get-color: e' v. ?9 v4 Y' y3 c; V
4 W! v# s( c% b, D; i]]! h5 W) T* s ~% y
0 h1 C: g9 K; m' {;;如果所得的信任度满足条件,则进行交易
+ d) h$ s" k m9 i& S! i+ ^
8 I3 _" C5 k3 [4 ~[$ ]7 q6 R. g% g- I, f! R7 l
& x' f* j3 q& Y( W X% f, a& ^) A
rt random 3609 b% @. G H2 {6 R, n
6 J" p* s$ v% ~3 Q0 |8 J% K( G8 \
fd 1! Z( Y$ V& R" T. g. v4 z
1 }' E; h7 _/ r- E" {1 y& h
]
8 F: x: E) V l$ t& E2 A( O# {$ F$ I
% b7 \+ x1 n6 f d* e; ]end5 Y4 S( v7 P5 e6 A# Z, r
+ Q! Z% U) B3 Xto do-trust
! x" q/ {1 T+ u' j, X* t( bset trust-ok False+ V2 l2 V, }8 I+ t/ f, H
: _, V5 {6 x# E, g4 R1 g# h
+ j* @9 x# O) r2 Q5 hlet max-trade-times 0
/ g' W8 z! s" l6 g: J# z- n9 dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- Y* j/ F4 q7 w9 H; C' U
let max-trade-money 09 ~, l. [3 [" P! Y' Q& N: V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- a1 u+ A4 P. J0 p% dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' p; E2 p5 q) R
# z" _% Z5 A; q' u/ N2 m* r# ~' |" O6 w5 r/ X! S- u+ L* {& v
get-global-proportion
" ]$ E7 {: q* Qlet trust-value
/ J! m1 x+ f: P' @; E$ ^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)0 e* T" O; J8 s
if(trust-value > trade-trust-value)2 Y! |$ y8 |* v& W& Q. A
[set trust-ok true]
5 H" W+ B. c, ?- z! m, [2 wend
* y4 k- E9 U7 b4 F0 U7 z: q4 V) Y! N
to get-global-proportion
$ a/ u9 i. c8 R( m* Gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( ?# ]8 K* C; d# Z6 d
[set global-proportion 0]2 x. f& q. o8 O/ j, w( w" o- B
[let i 0
' R! R+ y9 o! a4 s6 h- Dlet sum-money 0% B7 \ C. I# T T/ Q
while[ i < people]3 R% T0 P! C( w
[. h1 i7 U/ i8 i! V
if( length (item i- E( e8 R! d2 b7 o
[trade-record-all] of customer) > 3 )
" n% `$ s o6 e& ]! J3 X6 l[/ o7 o/ H- K" v: ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). p# T8 R- f5 y1 H& U; K
]9 P, p Z# x! R1 a2 n# q1 y
]. ^# Y n& E2 S- A0 Y
let j 0
" l: ^3 Q! O6 J2 c. H' ulet note 0" [' l! P9 k8 Z/ u \% Q' D& `
while[ j < people]+ w- L q) Z* T& Q) J
[
& l- B, U" [8 x9 @7 @4 m) @if( length (item i e# H$ l: M6 T$ R
[trade-record-all] of customer) > 3 )
4 K& J# B) z5 |2 `9 M# e3 C2 J, d[
' a2 Q3 R& ?( xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 F" T5 R2 }2 z8 Z$ X2 }
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 y( m1 q5 p* @% j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ `& J5 R' S, b, w
]1 y5 V8 | V5 v6 Q0 b" \' ]( |
]4 ^+ x. ~- u- M% s7 l8 J
set global-proportion note6 Q# N. E* y$ C
]
! E( o( x: Z8 N2 L. \end
9 a7 i2 ]4 r8 R9 s$ w) d9 s6 ]( E# V' ^
to do-trade5 B S) F! b7 W6 m' J
;;这个过程实际上是给双方作出评价的过程* Y0 C/ |# P; N8 J# i- U: F
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 B3 ~6 X" `, l0 B0 G4 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 X9 d5 e; i. i1 k' @6 y( w$ E$ p
set trade-record-current lput(timer) trade-record-current: C; b! G" F2 Q0 p# Q, s6 w
;;评价时间
% C7 D4 K8 [6 L% i/ Nask myself [2 M, G6 X% Q) e2 t1 S
update-local-reputation
) ]9 w! o2 P/ `0 B, I% fset trade-record-current lput([local-reputation] of myself) trade-record-current
( U7 M) P1 f5 b! |2 {]
6 D% F2 ~) q0 B# S- K5 dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ ?/ M7 R. J! m+ K' p
;;将此次交易的记录加入到trade-record-one中 v9 G9 G; X) f0 U0 f q2 O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 m" B+ Q! l' B
let note (item 2 trade-record-current )$ z" J E3 N6 ~+ u# S# \
set trade-record-current
6 |2 D0 K8 o/ c& f0 q(replace-item 2 trade-record-current (item 3 trade-record-current))
. P8 b R/ R( t, G/ {set trade-record-current
3 Q& P$ M9 C$ [5 j* Q3 z(replace-item 3 trade-record-current note)
$ A m1 z3 ]( V: Y7 r% B1 @% t
: U& @" ]' W3 I4 ?1 J( V
, U- R# T: ?+ P' c5 j2 Qask customer [! _6 s6 l; B4 ~$ q1 e3 E4 q0 d& v2 _
update-local-reputation
! b5 l2 q: ^5 E, Y( kset trade-record-current
0 F5 C, @9 l( w9 I" [0 d, X(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 w8 r/ s" z) o* ]! Y
]) H* e" \# {4 ]3 t
9 [+ @% i- W& l* D
0 F: |( y$ [* E7 I+ ~% rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: M9 m, k( P0 w0 Y
( x, D3 g7 e* e' A4 Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 F4 s2 F7 X$ ^( g; J6 W5 P
;;将此次交易的记录加入到customer的trade-record-all中" ^9 U- p3 A: v
end" Y/ R5 M! ^5 l' i/ R
- L4 q( o* u0 b. L5 h; |+ `4 f9 Cto update-local-reputation/ @0 {0 K9 O6 {, E3 c
set [trade-record-one-len] of myself length [trade-record-one] of myself; Z% G. X" y3 a! O
- `3 l, h% Y& M% T" K& \, v1 K2 ?
! R9 j! q8 _4 L, ~;;if [trade-record-one-len] of myself > 3
. ?0 z. O j- A, n5 supdate-neighbor-total
/ f5 T8 n/ Z1 S;;更新邻居节点的数目,在此进行9 x7 d+ n( ~- y9 G* D" B# O( U
let i 3
1 y- u/ y& Q" J' I P. qlet sum-time 0
" E0 F) G$ _1 O D K$ ^0 j" kwhile[i < [trade-record-one-len] of myself]. `' N) R5 U+ A6 t; Z& Y% b
[7 V3 c6 }; L/ L. R
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
y3 W+ f1 g6 _0 k6 U+ g8 ? \set i: Z" S- K( Z4 m$ K3 E
( i + 1)+ B, i. ^9 E1 q+ ?8 }
]
4 t# j! y" u( } f& s" B- ]% olet j 3
# c1 c6 h0 H& m' _1 q Tlet sum-money 0$ }* Q; [6 F/ I2 H+ e; Z5 u
while[j < [trade-record-one-len] of myself]
) u9 F3 u- B2 @, b/ k5 S- c[
: b4 r+ D4 C; Q: A( q& k" Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)9 K L1 k7 e% U* o
set j& `% U% r; Y4 M3 [* S) ^6 ]6 s
( j + 1)! q" X# q) Y9 d
]) @! `& Y' s+ c( t1 A" h% f
let k 3, [) | n" L5 o9 I. e8 y
let power 0
1 R1 W- N0 U- X! Q: \/ Mlet local 04 u- G# } U) A" a0 G
while [k <[trade-record-one-len] of myself]
/ @+ J) ~; O( ?5 M& E/ _[! G* A; ~8 n2 p- r8 G2 C
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) 0 ]1 M! a+ l9 l% P
set k (k + 1)# |+ f! i T3 f
]
7 w6 F& y& q) Z% q7 xset [local-reputation] of myself (local)" z. H+ [' D$ u1 ]3 k. q
end* S% K/ D! A' ]% i/ `6 |
6 f; G! T; e# K: r* {0 [7 I0 Y
to update-neighbor-total
0 M1 q5 Z: X- |+ S4 V$ u7 u2 R/ v6 f2 L
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- E: ^" d& ^6 g; h& t8 S! `- H1 _9 e4 Z
+ u0 F+ F6 z9 s5 Nend: e" r3 G0 O( S8 m
( Z% z$ m5 `' d* d7 zto update-credibility-ijl 4 D. c( ?) v. p/ M
~4 z+ l- ] g4 ]8 F0 O;;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。1 Q- v0 o& Q1 W% Z5 m) s
let l 02 u" N u) z) U4 B1 ?
while[ l < people ]
8 G: o* ~& N8 E' C! T;;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4 X+ _* F7 ~& A3 j# @) o: h
[
. a* A y" S$ K9 L. M' v% ^ Vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" o) x L0 u: h' Dif (trade-record-one-j-l-len > 3)8 L3 T5 Y y3 `
[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. T9 i# c( J# ^8 ]! p
let i 3- N+ j" ]' j. j
let sum-time 01 @, F9 {) E( ?% A: [3 M+ Y
while[i < trade-record-one-len]
, K0 Z/ ?; k9 ~0 r" ], n. U; l[
3 ^( r; J6 k, T1 |9 x+ Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), R9 b" ^; n; g2 p$ y
set i
# x5 `9 h- J0 H1 o- Y* `( i + 1)
$ ~7 o$ y, L9 @" l# C7 N0 o0 E' }: I( b]3 A! f5 k. q8 E0 l
let credibility-i-j-l 09 U. F" a3 |" L
;;i评价(j对jl的评价)
& e8 C" s8 W) R, K/ }( Klet j 32 I- O; R$ ^' A/ W0 r9 k7 w
let k 4
1 K- H0 u4 b) j, h- v* P7 Hwhile[j < trade-record-one-len]2 L% H8 O# }( C- H( o+ e4 S, O; K
[
, o) N% M' u4 l5 q# x" Kwhile [((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
4 X/ _6 V' D1 H8 S4 Cset 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)6 b8 V& C9 Q' r0 Z1 ?
set j* t9 i% s9 h9 Y) \
( j + 1)3 x! ?0 J: ~% R5 F
]" @# {5 x4 y# m
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 ))1 N/ K9 v; U( l
+ ^. h( ^$ q( w) X0 S/ t6 X$ V# I0 ~
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' R8 D7 z4 r" l( c;;及时更新i对l的评价质量的评价% n0 ~. e% l4 T* e x# j' @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ Y: N; }, k$ @' K# ` P
set l (l + 1)
' }+ t9 i9 A+ v]5 s3 ]/ ?0 l' O; d, V5 P2 p7 d( B
end
5 G1 H @. F; {/ H$ f' b
3 q8 F) B% C/ }: ~' b. eto update-credibility-list1 T. o7 Q) y9 v9 {2 F }
let i 0. {5 W8 \4 L5 e; y
while[i < people]
9 E( c# b1 x5 e% s5 U- K[* r# H5 F, S* {# t; H% s% v
let j 0
1 d) m7 K3 o7 q% Llet note 0
+ l0 ?+ L7 P( d5 k* }1 ~% {8 klet k 08 d$ w& A* E9 E. U, |2 w2 M+ [
;;计作出过评价的邻居节点的数目. z, n+ g9 s, j
while[j < people]
& [" S3 L( b' c4 A[- k( b% }4 Z# E1 j- J' v9 _
if (item j( [credibility] of turtle (i + 1)) != -1)/ b$ c! p. J( }; ^
;;判断是否给本turtle的评价质量做出过评价的节点) ]# f. N! O+ D+ W! ~, |
[set note (note + item j ([credibility]of turtle (i + 1)))
! |* ?+ r" X, T1 B+ B# c( D4 R" J;;*(exp (-(people - 2)))/(people - 2))]
& H7 ]4 F1 j# _! ]set k (k + 1) i Z6 o \; n6 |) ?2 l) ]
] [& U* J( U- g( i9 _
set j (j + 1)( S4 q4 |) K k
]
c4 O u* Z/ `( o- Z8 q2 v* sset note (note *(exp (- (1 / k)))/ k)9 w" V3 A+ a3 s
set credibility-list (replace-item i credibility-list note)8 ?$ |5 R# U$ r2 P% B
set i (i + 1)
6 I2 c% c- h/ D1 l/ h9 ~]
$ p/ [8 I( C( U8 f9 Mend
2 d6 i( Q+ ]0 b# J) e: S# _
% z5 F8 E4 L7 w+ R( ?# eto update-global-reputation-list
! x3 T K4 c$ S2 Rlet j 00 X; x! ~- ~' ~; @# s9 u; j
while[j < people]
. v. P: q7 j j+ F3 [6 t% \[
0 K1 X, l9 W; ^" Q! h" w# B7 o3 W6 \let new 04 G2 v6 X3 a" L7 b# o
;;暂存新的一个全局声誉
1 l$ k+ Q4 e L8 a( olet i 0
5 ?5 k5 f5 y! Q. p1 n* x( _8 wlet sum-money 0( { C' e/ y' ]' Y- ^
let credibility-money 0* _/ a9 {( k0 G* p
while [i < people]0 o! D% l8 N: o! r5 C j
[% M- z+ _1 [# L! R8 I' i0 m- |2 M
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 L- w( b. d: o( E, e: Fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): Q# G. M* V2 y2 J
set i (i + 1)
/ b6 R2 h" D# K `. P% y2 c: w]
& w5 v. j1 t6 ^% p3 C! Slet k 04 r8 X" A7 K* l1 G/ y! P
let new1 0% }! |. V, j5 E) s
while [k < people]
( c3 N3 R. i0 G$ _" f. O, m4 p7 C[- ^9 M6 W& _2 c5 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). {, c1 J( R0 G8 k K
set k (k + 1)& q5 k5 p0 G0 j
]
) }; L2 h4 ?, E/ D1 e0 A% r; m9 |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ) p- X/ ?2 ^. c
set global-reputation-list (replace-item j global-reputation-list new)
0 h% N+ O% U. M7 |set j (j + 1)" E$ p0 o; W; `2 i
]5 d; Y3 S$ K2 `9 b1 T4 B
end& R" r' p2 ~# w9 H+ o& U% U. e
' ]( |: [8 D3 a# \( A) R% ^/ { M* i; [! L+ p! e1 @7 [
% K& _' C. {+ x: ]! t. _+ tto get-color% S) q8 E1 h" ? M* v8 ]) n
" s; o5 x* t4 @( D4 z7 oset color blue
1 L+ U: Z% R( O: r% jend* h3 {! Y1 J) i5 n
/ U2 ~5 c, l0 h, {# V1 xto poll-class
# ?3 o9 J+ K" Gend
" d' p! x; M, C7 w- B) u6 ~5 { L7 g6 G4 q- o. [" M
to setup-plot1
1 C( j7 L* i( s) n
8 W0 k% [6 w) t1 E5 W Bset-current-plot "Trends-of-Local-reputation"# X% p: X6 y7 b& F! x9 \
+ C2 X: H/ e- c( Q' j
set-plot-x-range 0 xmax
- p! p4 w8 H9 ~0 [" f% y. i1 f8 Z" K% ]# ~( e0 b& o
set-plot-y-range 0.0 ymax
9 E3 F, W u# G3 R; s! Q- r6 jend5 i, O9 j: `1 U, e- d. b5 _
/ G+ Z3 H- B+ ^% Y2 B! _to setup-plot21 m/ X1 ^5 L. S6 `! l9 D
9 ]$ {+ @& j" O/ u: K0 @
set-current-plot "Trends-of-global-reputation"
# [1 E# @+ ]( B. U& N
% f9 d- U6 Q* M* r( vset-plot-x-range 0 xmax
{, m2 F3 i: T$ W- Z
2 s" a X% v4 j* m6 J; e' h1 yset-plot-y-range 0.0 ymax
% } x9 f5 w0 H5 R- Y' z" Y/ x y9 vend
' w9 s. Y! `8 u& L% Q5 ]
1 o' b0 t1 T( zto setup-plot3
% ], X' \1 M0 H' D" B( m
/ k" `6 |. F. j: q6 pset-current-plot "Trends-of-credibility"% a! X2 s+ T* A# X
* \8 i# e6 {- C: Z0 R8 Oset-plot-x-range 0 xmax
+ l, t3 i- N# a B' Z7 ?5 ?4 z* ?5 C4 p5 ~6 |* W3 a
set-plot-y-range 0.0 ymax6 J- b. s) F( T W8 C. a
end/ b% x4 \0 {/ T, }# [ ?
4 ^. x6 [: p" H% j( a+ Dto do-plots" p- R3 R5 l! @$ R
set-current-plot "Trends-of-Local-reputation"' Z! T7 X5 M7 s P& y$ `% I" a
set-current-plot-pen "Honest service"
# V" F4 Q6 g) B Send' L2 s3 x$ O; ?! N* }2 E4 X3 @
+ G; c: j* s4 ^+ l' t. G* F: j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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