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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, g* R: }3 b1 Q/ H$ d
globals[
/ v" g/ G9 e9 b9 Q3 t" D9 {. O( K% yxmax
& q1 c/ w3 K$ f F# iymax+ m6 X4 {3 ?2 a( P9 ~$ v" F
global-reputation-list# ?: z* g- [9 w- y7 k* f
4 m8 C* V( b% V8 o v7 {
;;每一个turtle的全局声誉都存在此LIST中: ]. b4 p& q' x& h7 M
credibility-list
6 H- S! I; x. W. @, a3 T;;每一个turtle的评价可信度
+ C& n8 v/ K% e/ D, Rhonest-service3 D( `4 K, H' M1 `; H- E7 a
unhonest-service
* r% O! }8 l. M Ooscillation
* ~ I3 ?& m7 n0 B& v2 h* X$ Brand-dynamic6 K9 b2 c3 R, J: A% P1 z9 ]3 @0 E) @& t
]9 X* M, x) }& F7 \! |6 j1 f) L
% D6 f1 X& f/ b# x& }: ]# bturtles-own[5 Q% G' X1 z- b+ ?/ v1 Q) J5 N- e
trade-record-all3 f9 E ]* X% m7 L+ e* M" F
;;a list of lists,由trade-record-one组成" i" J" s7 Q, Y- G+ ?
trade-record-one
+ ~, v( f$ a* H0 C: i3 q$ Y;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 \+ I! C- k; O
; K+ |/ j/ k6 l- M$ R;;[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]]" Z/ {/ c$ v/ A1 k5 @
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]
1 M6 G. f/ m) @# wcredibility-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list0 G. A/ Q9 D3 J/ X4 h3 k
neighbor-total
7 o( {9 v8 q0 p9 |;;记录该turtle的邻居节点的数目; K& Y4 E& Y4 ^
trade-time& \: ?" i4 w+ ~* Z. V, a
;;当前发生交易的turtle的交易时间
1 C& y9 G! j J( Jappraise-give
9 s" d) L# u$ Y* {;;当前发生交易时给出的评价" |: [5 t+ y% V. ]; g
appraise-receive
5 b! q8 u7 a6 ^) _;;当前发生交易时收到的评价
$ `) K3 K: U0 fappraise-time# V8 B4 y; W/ Z! t$ f4 {" h
;;当前发生交易时的评价时间- O0 v) _8 T0 r2 G& m6 W# W- x6 F
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- d$ k/ A) V2 k2 y. G1 \% |' M
trade-times-total2 F2 R7 t4 S$ d+ S
;;与当前turtle的交易总次数3 b6 l7 z: s# P3 ~( G
trade-money-total! h7 F) l! x5 K; y7 \! o- G7 z$ N8 ]: R
;;与当前turtle的交易总金额8 h2 U5 F; Y: D# L+ t
local-reputation* u3 m; j; k! t! a
global-reputation# o+ V- J6 @2 g: T, }- A
credibility/ H- b5 H7 i( g+ k( T
;;评价可信度,每次交易后都需要更新
) u* `' u# f v2 Kcredibility-all/ t3 a" O$ l/ ~2 }
;;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
9 |( \9 k: x5 T |0 S. T: s4 x. p$ m" E, M# e
;;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
3 v H" c; \: ~2 Fcredibility-one
8 x( R7 f) I3 w;;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
9 M8 C' ^& M# Qglobal-proportion
+ c1 q& ^5 u9 i. \4 N+ `customer, D) k8 H# C( R/ d6 V$ R
customer-no: h# {0 F) L1 j9 z5 `) p. {
trust-ok! u* b6 N( {: o. Y5 h% s& C& K
trade-record-one-len;;trade-record-one的长度
' e( J( K# H) P( V" }]1 h7 R; a9 x& D
' H5 B) \' f, _4 b1 Z;;setup procedure
. R. ?1 a; k. j, W* v9 b
+ o9 H$ H' \- wto setup
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ca0 c7 U6 ?' E \' h
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initialize-settings" M9 r& D9 M% L7 O* D# `" Q
( C* A+ u+ J5 K$ k5 H% W/ gcrt people [setup-turtles]/ p$ `: @2 U& j; e
t7 g( L8 p' t. f
reset-timer& J+ I: h5 M' R: p* d" U# b" q
) ^7 Q! }2 Z6 y" k2 D$ B
poll-class) z% n& [0 Y6 r
6 x! [4 ~3 [" d/ ?0 D8 C
setup-plots
( o, ?; G# Q# {7 u" i0 n3 d- u; ~* i
do-plots1 E% D4 S! N1 V
end
7 V) k8 L# |6 ~0 B! G0 p' u9 Y- s) m
n8 ]6 Q0 ^; G7 Rto initialize-settings2 j9 @! U3 C& L6 Q
, V2 C: n$ O- J# Fset global-reputation-list []2 I4 | `5 [& }. c! Y
9 S" {1 o0 N) i0 ^5 H" R
set credibility-list n-values people [0.5]- i0 b% ]3 R+ n, g; ~9 H
7 ]4 _6 O- R) D' L4 y7 T Iset honest-service 0
) @, x( d/ M p7 E% F( d1 R) z2 a) s5 I" P
set unhonest-service 0' q( t) l9 g' I* W
6 m. q# j' y$ f9 G0 ~
set oscillation 0: Z0 K& y' f K [
& }8 @" }* M7 {0 e7 a8 K' g0 lset rand-dynamic 0; ~$ W! [: a: ^& q! r7 c
end% Q/ v1 e) L" F
# y( }$ A4 h' ~
to setup-turtles 5 p6 E; |" `9 W: g8 u( J
set shape "person"
( O/ R* B" k9 Gsetxy random-xcor random-ycor
3 D: z/ W) u* L" C& j+ s# Pset trade-record-one []
" o5 u" r7 e1 O( j3 J9 K4 |) D7 N8 V$ O2 a" h) v
set trade-record-all n-values people [(list (? + 1) 0 0)] 1 g+ U3 O' }7 X$ @$ G* q0 q
4 P, m! ?, m& N" r( K5 i
set trade-record-current []7 R) V/ F/ _, Z. ^+ k y- ~8 b
set credibility-receive []! b8 b$ ?, J, e, V8 [; n t
set local-reputation 0.5
( {! Y J' Q% M) Lset neighbor-total 0 L {: _, e3 T [. d- K
set trade-times-total 0
1 G. d$ `2 o' a/ C4 F2 Hset trade-money-total 0; B k8 u; w6 e$ g4 `1 K
set customer nobody
9 d( U3 C+ ^/ I- M( Hset credibility-all n-values people [creat-credibility]
3 V2 ?3 n# r1 k$ n5 u( l( L) eset credibility n-values people [-1]
: J& ^# h! T0 H; H: _get-color) I$ \- T. y1 S/ d: Q/ e* |
9 [: \2 z4 |6 t$ q( q
end. s. v0 t' q; l4 U" s+ ~9 @; e& u
# q& e- V8 P# s* l
to-report creat-credibility0 _& m# o( K9 |9 C
report n-values people [0.5]8 s& j9 |; y$ E& K$ Q
end* |' \# W! w; C
( v0 n9 p! L- Z2 w" a, xto setup-plots
' i( f0 x8 A: Z& a) w9 l- L2 X- M3 {2 o+ W1 q
set xmax 30
( O3 r1 y" Z/ A! n. j1 [& P( @, L6 l
set ymax 1.03 Q* I' j) `" [8 @
* ^2 j7 L$ H1 Y! `! a; t3 Q' @clear-all-plots( D1 ^. K+ s5 s- ~/ V8 Z& s
' M/ m1 \+ n' G! C3 {; Dsetup-plot1) J- V! q& ~' K! Y0 A' j
- O) v) I: N8 \* |1 ]4 G. Dsetup-plot2
% i* E/ Z6 g3 ?+ r# ]8 `
: Q& l2 a4 H; E) g9 V& u; rsetup-plot34 X& v4 h2 p6 c/ L
end
! g0 f- X3 f1 B
/ ^' L c+ i/ ]2 y& H2 a;;run time procedures
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+ S9 S) d: I( C$ P/ yto go
& g5 V* R$ V7 U$ m- r p/ w
" H C5 B3 o2 j* X; q- H' Dask turtles [do-business]
8 I3 M, ^" h8 W4 vend. X- ]$ P( U: _% `3 M7 K
" j9 I8 z2 I$ p* L1 E
to do-business
4 ~8 @" p& N9 U' c; f3 T& L! o6 F5 t& O
+ j/ D2 h) t7 a' ]1 Z3 }: C
rt random 360
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_3 i* U+ G+ P. h+ K! Gfd 1
, \9 ?7 F: N: H4 _$ p( D# F( r6 j
ifelse(other turtles-here != nobody)[
* d( g, l) y9 ?8 Y+ U8 g6 D% ^
! r8 S/ w- y& v# ]2 yset customer one-of other turtles-here
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9 W1 D8 [* N: Q9 V# h) X;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)( C6 E9 U# L) p6 ~# |
[trade-record-all]of self
$ R" f& v9 B; h6 a;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. c, r4 V2 ^6 n: l* z: A+ I- z5 C
- \% ?* A7 q( h. j" h+ D/ ^
set [trade-record-one] of customer item (([who] of self) - 1)
V$ L# w1 B8 Y& ^3 {. C/ y& a[trade-record-all]of customer! B! m% E4 i( O- N. U l6 f
2 E0 p" h5 U- ^! [# |0 I0 r- oset [trade-record-one-len] of self length [trade-record-one] of self6 c0 Q2 Q* g* v3 \& n; q" [
6 ~& f4 L6 g+ t4 F, D) Q% t, tset trade-record-current( list (timer) (random money-upper-limit))
) z8 @& X8 k0 `
6 U$ U; Q0 V! ?( W/ G, Gask self [do-trust]2 w6 E0 L3 }; V% S
;;先求i对j的信任度6 d, D8 |% K, q, X
# J% `: k; h2 H
if ([trust-ok] of self)3 Q0 Y2 y! m% t
;;根据i对j的信任度来决定是否与j进行交易[
. [/ f2 p8 c6 T1 _# F% Vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
2 u$ ^5 X" b! {& x, V" F9 S2 q, I) T* d
[
; ]8 B; P; t( e' a- {* k* O7 U4 n7 L3 m! ?. b/ P8 | |( }/ x3 e7 F; ?
do-trade
1 s0 d3 w" s. @# Q) D8 H2 e* E) P5 ]+ _/ a) K
update-credibility-ijl# Q$ Q$ Q+ H6 r, L: d
0 |9 Y' z8 m# c* l! f
update-credibility-list
1 p* F* S& u3 a$ ^2 m
& X! ~* m& d+ Q, E+ _5 K
; \1 f# f4 W1 W% Aupdate-global-reputation-list
& Q9 W& `1 U% G3 A V" R+ U; K+ o+ s, {" y4 C
poll-class& g; M! j1 W4 S
+ E! a u( p% ~, k! V8 k6 }: `9 S2 n
get-color
7 z: ], Y/ Q: P Y+ m/ K/ l( Z4 h
]]8 d' h4 }; C# o6 c6 P$ l1 v
# K0 r" k4 Z3 }* D4 D! D;;如果所得的信任度满足条件,则进行交易
. {: ^- z; |& F, Z# X0 z1 t% |
. T0 T) a c; }/ h. D+ o: M; l[
4 u; d# i; s7 u4 N% \/ |$ J# H
rt random 360
& p: I) m+ J |+ r |, Q7 B8 W. u( q8 t; R, v; `* a, ]
fd 19 e; m1 ]! I( Y6 }8 X3 u5 i9 ~
$ d/ j5 S" i5 ]. H: g], |' E5 |+ k1 G: M
& r; j( W2 s1 |+ ]/ W& | \$ Qend' G& R) D D: r3 }
2 q) X) F% \$ J5 K" {to do-trust
2 j0 j8 g+ u9 Pset trust-ok False
/ }" [1 h: O3 l/ _1 u( g+ y8 V0 e" Q6 G- s. G% }
7 L% s }. J4 Y' }; Z3 nlet max-trade-times 0) ^1 ^0 U" E: A1 ^
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- m+ K+ ^3 |. | B8 N6 M) m O
let max-trade-money 0; U( F) x9 [) R. I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 e+ E+ [- p6 b6 \9 Ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! F0 w( z, f% ~! C
$ \: d7 e8 L7 Y& V, I6 \# e
/ E- m( A6 K0 V/ L" T3 V! r
get-global-proportion6 v7 p! I3 n$ f, W9 y
let trust-value
~4 n# ]) z; [( } x2 Q5 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)2 H+ z, @3 g0 F% m x; }& K
if(trust-value > trade-trust-value)
$ t8 R' w; q! b. i# j[set trust-ok true]9 Y$ q1 }3 M: | T1 u- V3 Z2 a& L5 c
end
) Y0 y+ s: A1 G" ]# S9 u, W0 l/ w( U% u3 O4 m! a* [, e
to get-global-proportion6 M# `" V* i- i8 m4 v& O3 g
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 m( U( a, U2 i+ y5 H
[set global-proportion 0]; C$ u _" J4 d$ ~, T' {- Y7 R
[let i 05 V' L8 M; L5 Q$ ?5 u
let sum-money 0. B) A% V7 S+ G* K
while[ i < people]
|9 f0 n& i# K& b* b& u[
5 a1 K+ _3 Q% C5 qif( length (item i6 \2 p% a, i: V/ r" z/ @
[trade-record-all] of customer) > 3 )
7 u T" R, V7 P% H3 c5 {* R- f[0 _' v+ N% q: I
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 `; S; Z5 m1 s8 g, N]2 W0 o! M( P6 }3 c8 P- v- V8 t
]
8 R3 _' K! D; o8 plet j 0
' s+ ?! ~, W* |6 S! h3 ]; x9 qlet note 0: x/ O$ K/ m0 \
while[ j < people]
6 R4 d/ C x3 a: e$ R' w[+ s; N$ ]; X' e% o
if( length (item i2 ^5 f% f, K7 D" m0 D. l
[trade-record-all] of customer) > 3 )
Y- L7 ^( ]8 w3 J3 F* i[
' S0 v" z3 j I- _) e9 O0 v5 D5 i, ~ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 H$ y1 o' Y) x- v2 D7 L$ D" T$ X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- o* j. e8 z8 a- D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 a7 y7 a% P* Y5 D]
% i( `: g. j- n3 @]
; T. Q, q9 |; c [set global-proportion note
' L, E) b' u( v( H2 Q]
' [! I; w4 m* R! fend
+ P9 p6 n- x+ i# a! Q7 d) K3 z! a6 K+ r' [# N3 V+ U
to do-trade
* H$ ]' F" R/ u- B- v+ Y2 k;;这个过程实际上是给双方作出评价的过程
. A- r$ l2 K. T! t' N9 M# F9 cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 z- l( |! l5 k' W! r- m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价! U9 P& C; q. H7 o! ?
set trade-record-current lput(timer) trade-record-current
6 V& ?8 v* r( ?7 s;;评价时间+ W- r3 U: a1 b2 @) {" n
ask myself [
8 p+ N* }+ j$ d, y0 \update-local-reputation! [( M" x$ ~. s3 o: z# ?3 X
set trade-record-current lput([local-reputation] of myself) trade-record-current# C" O: ~9 N& k. n! H" f; G5 o
]
6 I) d5 P8 \) v% U0 Zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ J1 J# D3 u6 L2 W k: K
;;将此次交易的记录加入到trade-record-one中6 j9 j3 b- n1 J) B9 x
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; M- W1 S0 i% r# B% I& q6 R! P( Rlet note (item 2 trade-record-current )
* W+ y$ h- t+ R5 v) b4 fset trade-record-current7 t, t8 T! B9 a# x/ R/ B) K4 M
(replace-item 2 trade-record-current (item 3 trade-record-current))
4 G) f% k- L9 j+ O9 L6 Kset trade-record-current
7 x* v" }' G" v(replace-item 3 trade-record-current note)- X3 h/ H( L) k; N( t$ d
# s; ^/ X, P" a9 S' f4 K
6 ]( r' K' x( c- \1 d: H
ask customer [
4 T8 j, z9 c2 A3 ^- Hupdate-local-reputation
! Z: M# e+ u4 Y% l8 L4 yset trade-record-current
" F8 { v/ t3 ^# G3 q8 f+ p(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 p/ ~( V6 k b]
% G$ C2 S# r: b8 v4 B: ]7 X( R/ y$ D$ F. x
& f! o9 Z3 Y9 R, x; I8 Xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 B g) O# f6 I a# h' X, i' g! c4 l: M T
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 z" z$ n1 y* A4 h* j
;;将此次交易的记录加入到customer的trade-record-all中' s; z/ q+ C2 c" Y4 c/ {
end
; _2 U+ Q+ K+ i2 c* @) k( T- T( D7 c9 k5 Q+ }
to update-local-reputation
# X# f) _6 j* B: tset [trade-record-one-len] of myself length [trade-record-one] of myself
& ^7 n/ g9 L, u& L& s
* b! a, j$ s3 T3 e" u+ j
; m- C! Q# X' N$ O: I% H* U;;if [trade-record-one-len] of myself > 3
" f9 O# N* ~1 z- a& Z* @update-neighbor-total' S. f7 \4 {$ w* L& u2 a( w
;;更新邻居节点的数目,在此进行
% `; I. V0 [% zlet i 37 b! j* J* r! p! v5 n! D) R
let sum-time 0
4 u) s6 B* p7 Qwhile[i < [trade-record-one-len] of myself]
7 g" I9 O) G* V4 ~( A! a[% d. l9 J- p0 J2 t$ ?* M
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); w8 S! S( F) V( ]7 z
set i
5 r3 M1 O" H/ q& C: x$ j) C9 |( i + 1)6 E) g2 H" ^5 i
]
6 J( K* S" o4 u% K( Dlet j 3
6 A, P1 R' g0 ^& R; T9 `4 M! hlet sum-money 09 O& y0 A4 M: X% M" P: I' h% ~ M3 l
while[j < [trade-record-one-len] of myself]
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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)' _& L1 [; N* l6 I9 Z1 ?
set j
8 p, `$ P9 H! L$ A! t6 Y8 M1 b% |( j + 1)
. Z+ ~6 c2 m! Z2 T" X* X]! W; k* c9 Z6 a# K' Z
let k 3- e: z6 ^* H W! S5 m7 m
let power 0
( j! h4 ?& G9 t* Nlet local 0
! v0 O5 e- d# Dwhile [k <[trade-record-one-len] of myself]- `+ y# @& H! Q( a# p
[1 j5 i# f4 c7 u, h
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) ' X& d# _- q( J6 r0 y* U/ ]% w* m1 B
set k (k + 1)
" Z3 N$ K0 d9 B0 f0 t0 p( s/ }]# g4 Y( S. T2 A
set [local-reputation] of myself (local)) M$ q4 x) ~- d. h3 l, ]0 L
end! G! i G& {0 u% l5 _+ [
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to update-neighbor-total' L5 K9 e: A( L; F. O
+ H) f3 \! o6 [. d, a- g- t Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ Y2 V4 r& e, E4 v. H9 }" w
$ S! }2 e: B9 S% p6 t# ]
0 I0 H! T) X4 D9 eend
( D& J! A: Z1 k5 _, l4 B
- H' |3 f) \7 N# z! o$ G( Kto update-credibility-ijl 5 b) E. R0 Q" Q0 _9 w) Y/ A: v( D
# k1 m: v3 F" H% a) ?1 k: ~
;;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。
" U3 R( w. G8 Z0 {0 U/ Alet l 0# G3 `, c+ y7 C; D) n4 {; j0 x
while[ l < people ]2 Y. E" B& h3 e# U/ V: 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
1 x6 K9 g% L/ J/ X* Y5 Q% \[
, k/ L. W0 [- Y: P. T( [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( L6 x$ }; W' U" Y& i, g Mif (trade-record-one-j-l-len > 3)
* O, o! O% \! o; J% T[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/ u) @. \; X% Q4 c
let i 3 b3 K8 u% n9 C f( E7 L
let sum-time 0# w' ]0 n2 {0 V
while[i < trade-record-one-len]. B! w' z' p- ^7 k* ^6 ]- b
[
8 r7 `" K8 p! n9 |: q" ?! p$ @* `set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 C, m6 O7 r" H. T; a& j+ \set i
9 g" x: t* @0 d! V @% N2 L* N' ~( i + 1)
' [: n! P& `$ ?' q! H! U& P; Y' ^]
7 ~$ A) _2 Z$ U& llet credibility-i-j-l 0
7 Y) K5 a- O1 b9 y+ F- D! Y7 u1 L9 w- Y;;i评价(j对jl的评价)
+ O4 w' D2 T% f* W. `: V/ rlet j 3, A, i8 \" |0 T3 b
let k 40 z! l2 T6 S' }
while[j < trade-record-one-len]- a& w! W' G- l! s3 C
[: k- ?- f/ v) |' X a6 Y
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
r6 f! j1 I. f. G# L0 Mset 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)0 s, N9 Y; R( L; L( X
set j
4 j9 O2 v; Y" Z- f( j + 1)
! d) ^* ? k- g1 u]1 q4 N" z ^3 n/ s- P4 Q& E
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 ))' \& `% C+ n$ A5 ~/ |# n7 F/ L0 Z
2 D; l0 g. ?+ r; k
( [7 ?5 b w) p+ hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 l4 v) \( O, P4 Y& n$ m& f( b) K+ u
;;及时更新i对l的评价质量的评价
, R- u9 a( M+ k6 Hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 a7 @3 i; O* ^9 _5 a5 ]% Oset l (l + 1)* k& O6 E- n2 r& U% I
]
. q% f, P; m. L# D# u# lend
; F2 @! ^! p( d0 p9 D- J+ V0 U; Q% ~3 \3 F3 [* x* O
to update-credibility-list( n7 J, ]6 y% Z* ], e- }8 \; N
let i 0
7 H. L7 J$ i5 u2 zwhile[i < people]
" v# ^8 o* b- a9 n4 p l# \[" |( G) ?# G P; T" Q5 D
let j 07 U9 Q3 C5 o, `8 z
let note 08 N* Q* f# g8 J3 }
let k 06 t/ m$ b K1 `5 }' C
;;计作出过评价的邻居节点的数目
! j: V8 b _$ R# o3 Zwhile[j < people]
) P: T6 n- F% b; N- ~[
! z( n% _ b$ e: w5 T5 Aif (item j( [credibility] of turtle (i + 1)) != -1)
: @6 N: Y1 q) }2 b: s- c( r;;判断是否给本turtle的评价质量做出过评价的节点6 k5 i. Q9 ~+ t0 s/ ^
[set note (note + item j ([credibility]of turtle (i + 1)))* }) L o: t% d& y
;;*(exp (-(people - 2)))/(people - 2))]! F- _ J, L) E; a* B9 H
set k (k + 1)- Z5 q1 @5 g0 B3 F+ ~
]- T( L3 X8 W8 _1 a
set j (j + 1)
: e' U- H. Z! E1 g; p]
, q( `* B2 F# J! o3 Wset note (note *(exp (- (1 / k)))/ k)9 z* S; T3 L0 [" V1 q
set credibility-list (replace-item i credibility-list note). K+ c' Y6 `; H! h; P0 l4 f Y
set i (i + 1)
2 H% m q, E* o# e]
5 v, a4 b5 t* |* Fend5 ?0 x8 a0 Y" N
; n; O. u& Z: T: U# j+ H% x, D
to update-global-reputation-list
1 G: C& ?+ ^( s2 P6 U0 Alet j 0
/ H5 o v4 Q7 E& u, `; Swhile[j < people]0 K ]* ~( M) i: ?% h
[
# m" ^$ c5 H! [. C2 e- L1 slet new 0! D+ M/ i: j( S- R& [
;;暂存新的一个全局声誉
. y' q# ?. X# p/ x. ` Slet i 0! H) t% k% _5 U* x" w' _" J
let sum-money 0 Z: G& q0 s) Z, @3 G: ?; c
let credibility-money 0* u6 T. f2 z( s# \; C, E: Y
while [i < people]
7 u7 Q* y6 o" o7 O0 {; r6 L$ G# M[
: l' G6 H+ w* v. J$ S& Kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! g& J9 t+ K9 y! l2 F6 r
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))3 ~$ V$ H3 K0 E8 @7 F$ k
set i (i + 1). D& Q$ F. @9 s+ d: r' H1 v1 o
]0 I* v* k$ L1 H
let k 0: K8 m# w. t% k2 B- \& ~$ D7 u
let new1 0
9 u- M1 G# a/ a; {! Cwhile [k < people]
7 Q, |, O* ^# Q3 t( O[
# {/ b, T. p# Kset 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)( R1 K p) o3 U) i
set k (k + 1)
- v8 F& @- D% K+ j) n# G4 Q]
. e9 E9 i1 D& c$ A6 A v7 _set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % h1 C0 C& I5 S* D
set global-reputation-list (replace-item j global-reputation-list new)% s: f! ~, e" c5 l- t* J( y1 t
set j (j + 1)
9 Z# p* C2 j o3 S# \]/ O K; L/ l6 H- l: \
end" _5 { f6 t8 H3 ? S8 L
/ U: Z0 @. ~5 ~4 J6 W1 r( T9 c' A }, S8 R& d
" g7 f/ V" N0 Q7 }
to get-color! \- q/ |4 s+ |1 @% e0 F1 d
- z# q; @2 Z, z6 v, I3 oset color blue
& s [: Y- l# \6 C$ rend7 c) J; f' A0 j. g
' d8 Q) I* x9 `6 g M$ Y
to poll-class
% M# L& e3 Z) H$ ?end
6 ]* x5 h) Y: M% A2 I' k, b0 z3 I
9 I, U$ R4 F% Y$ @to setup-plot12 X! Z- a. Y% W' a1 T, ~
- S) g" {. `. P Z/ H+ Rset-current-plot "Trends-of-Local-reputation") A: Y. o1 S% H& {) s
k: w0 z5 l! \, n
set-plot-x-range 0 xmax
6 f/ C) r% w1 O, F u0 n
: l. _: w) ~- k1 S2 zset-plot-y-range 0.0 ymax
1 @ H# j0 h, A+ q1 j+ dend
0 g$ }5 X2 n+ g, n: a0 k7 W& n( l3 r4 B& {# i
to setup-plot2
6 R5 `; v4 N5 `' C- C+ y
: N* m8 S- D& `9 m+ Q% u1 oset-current-plot "Trends-of-global-reputation"
: K3 O+ g" ^ g4 `( K/ d$ d" b' i0 k+ v
set-plot-x-range 0 xmax
$ w$ R5 I( V( G- l! i8 t8 a* n/ O! l% G8 p% y8 u
set-plot-y-range 0.0 ymax9 J D2 C$ H, l# s, E
end
5 G" ~/ ^* u* N( ?& Y2 ^* n; \4 B5 Y' v, \6 t' ]' f
to setup-plot3 F' E5 r6 F# g/ E0 P+ {) {: L
! O& H& ^ F3 h" Gset-current-plot "Trends-of-credibility"2 M& S' W4 {8 a& ]& |. b
3 o D0 Y; t7 J# x2 ]- t0 M$ F
set-plot-x-range 0 xmax
: e# ]* w3 D; k( r' j6 k# V- z
}2 ]" x5 V! c( f1 P+ Q! Mset-plot-y-range 0.0 ymax
: w9 [9 c5 i. {& Z( \5 r6 Q' Lend
( a# v! ?: n0 R8 z2 j- W$ _) ?( p7 N8 u$ ~5 y" f. \& X
to do-plots
8 r n4 ?- a9 U: c# R. e, {set-current-plot "Trends-of-Local-reputation"
- t& R) E& N3 U# h( Xset-current-plot-pen "Honest service"+ e9 v$ E8 @( q1 R3 w% ~
end/ N! n7 ~" I! L! c% ~( H% b
/ _+ B- f0 A- b5 ]( i0 I2 J
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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