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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0 E0 E" O% T1 E( s2 F
globals[
# s1 e X8 e+ l; v* P; X( Gxmax
1 G# M# p# A6 `# H8 x- l. Iymax$ E; @* M, ^# d6 n8 f8 M
global-reputation-list
# k* \& b3 D1 k7 {( N- r% G4 ]7 |$ i: N. B/ @5 I: Q
;;每一个turtle的全局声誉都存在此LIST中
0 i g z. j8 G( t3 y. Icredibility-list
- k* P. i( b. u" g& z* w;;每一个turtle的评价可信度
3 o) x- u4 |2 I9 c: Lhonest-service& X' W0 E3 q* \7 \7 p3 w2 o
unhonest-service* E$ }! b1 `; \7 c" A
oscillation" D7 q3 h# U* y) E: F% ~- V# `
rand-dynamic
2 G+ H! W0 f+ H# [: `0 O]
; }7 y2 x. U# W% i6 b6 n
: h$ s& T @ Aturtles-own[
0 R$ g2 o0 n0 r) [3 Z) ^+ U1 ltrade-record-all
0 u+ K; ~) n3 s# i5 n" l2 k2 |;;a list of lists,由trade-record-one组成
9 H w2 U5 C5 D- P+ a7 |trade-record-one
3 r) s/ {# D8 d# }, j;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ T( x; u* C) x) `
' U) b, B. G* p6 |+ X' O5 y
;;[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]]" g0 P6 ~6 P" 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]
0 V2 u$ v, r8 o+ {2 d% z* g# f; z7 h. p, ?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
+ B4 x- F& P( V$ I, ^" l% A8 U0 F4 eneighbor-total" H" `2 h8 k* |& D1 ]# e
;;记录该turtle的邻居节点的数目
& Y/ y; v, W& b6 }# A1 mtrade-time
5 V2 M b, ~% w$ C;;当前发生交易的turtle的交易时间
# Z# r% N- ]# G3 O! Uappraise-give# L4 n/ w R: j; q# G0 n4 W
;;当前发生交易时给出的评价
, E9 u2 K. g" K7 M- n" W9 N# Uappraise-receive) y8 K: f. G* V+ I% ~$ y7 t
;;当前发生交易时收到的评价
4 p# v; g( j" y% u( xappraise-time8 ?# |. f2 u* e* U
;;当前发生交易时的评价时间
+ H6 ?. s, v( X& e, _local-reputation-now;;此次交易后相对于对方turtle的局部声誉- Z2 g- z8 I M7 G
trade-times-total
8 y/ I R' J, r/ _8 t;;与当前turtle的交易总次数
8 ]/ `( h/ h$ _ Q* mtrade-money-total
5 G+ x1 \( J' k/ _+ \;;与当前turtle的交易总金额- d9 a+ v. H" \0 ~
local-reputation
% z0 c: y! {8 s3 l. ?) @global-reputation
1 G/ B1 ]5 {' |credibility3 r- B/ K' q8 ~) l7 q
;;评价可信度,每次交易后都需要更新
4 U6 ~2 [- k" o- ~3 k- c$ Icredibility-all
( n! ^3 E9 {; Z;;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5 {1 q$ S7 M: e3 U
w( Q n; j+ S+ _+ j
;;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
( V" b4 _1 p/ o4 Ecredibility-one. l) e. Y f( V' c' b# E
;;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* W5 i7 w# J1 L" |: n
global-proportion
+ U& m! d8 X9 `+ ]* N/ ncustomer% T$ Z/ B1 ~) D! c( f
customer-no1 n0 [2 b. E4 a F) o
trust-ok
, e5 J K" W; ~% n. Q1 b$ Btrade-record-one-len;;trade-record-one的长度
/ j1 p. z- b6 u) C]6 P" ^1 ~* [) O
1 p7 ~7 W# K7 _7 O9 v5 {9 s3 Y7 Y7 R;;setup procedure* |6 `; u+ N3 G& w4 T9 Z1 Q" \6 D! _% k
+ b) a1 e1 @6 x* z' o. y
to setup
2 u* a: z; S2 W# |, i- o- |! \0 l. o9 n
ca' J% u- A( S: U$ I; k- f
" A4 x# j, C# O( C1 R) H; M
initialize-settings
9 Q7 l/ _& ^$ N( U. p* h; @2 W$ y$ w' Z0 j
crt people [setup-turtles]5 k2 q: b6 u/ B5 B5 y9 g
0 `2 x/ n# O8 o9 D+ I' u S9 X+ T+ y
reset-timer0 t' [$ ^2 @' K9 y8 {% {; c) A
7 f* D$ ^# r% I: k/ Y$ p
poll-class
5 b* e) n8 L: {7 Q% M5 g" J& I& m& y* e7 j% b( z f/ m) [
setup-plots& ~5 _4 T' u) d+ B
5 x. q* F( `# m: ~. e- jdo-plots j. ]/ d, l4 M# M4 K) _) T
end: P8 ~2 ~- L$ j& l) w9 r C" r. d/ ?' v) h
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to initialize-settings
* T( g+ g9 n0 W9 A# o
% D S( J% X8 t9 `8 x5 K& eset global-reputation-list []5 R3 x! f- L) y6 E" b1 p
5 m1 S1 t/ z5 e$ }: o1 j
set credibility-list n-values people [0.5]9 J8 N' o5 j+ b: @
5 w# N1 t3 u. l* E& N) K/ vset honest-service 04 E% K% w6 L. b$ ^ c
$ _9 P- M$ C8 b1 u) k
set unhonest-service 0! }! u: N6 M( ^7 ~" u: Z+ W
/ c: Y* y; _0 hset oscillation 03 x+ a/ j4 c0 q. U4 F
9 E* m9 `2 n- H7 E7 m6 E# H/ g
set rand-dynamic 0* w9 n; v6 K# e6 B* {! V ?5 Q
end H9 g3 p$ {% F3 `% Q+ ^1 ~
/ P& `* X4 Z& n/ ~1 g# G
to setup-turtles 6 t; I5 r# I& w) c2 R
set shape "person"
* G9 i% n S4 v7 Usetxy random-xcor random-ycor y# d1 ]% a4 ~8 t1 T5 w# F
set trade-record-one []! K2 J; I9 @" z) {: c" ^
8 f% h+ B5 D% D" k4 y5 |
set trade-record-all n-values people [(list (? + 1) 0 0)]
: U7 H+ w( `; i+ G. p6 T* e U# z; [$ m- b
set trade-record-current []
5 d' o& J3 f/ j3 Q+ Uset credibility-receive []! s% [+ n& D. b" L J8 ]9 S
set local-reputation 0.5
0 z& d7 M' W5 W6 S/ I o7 a# bset neighbor-total 0
6 N f6 Q9 ~ u( i- j+ j0 }: c/ gset trade-times-total 0
' ^ V) l) i0 N2 Y& ?set trade-money-total 0
* h) _& S1 b, @* uset customer nobody, Y" N8 q4 q+ i# T" J
set credibility-all n-values people [creat-credibility]
) p+ Z3 J! E* _4 k* l( Bset credibility n-values people [-1]( R3 O# t. g9 z: N4 e/ k, U
get-color2 S" ~$ N: ?3 f+ j" |/ W
8 y% j6 J' N( u+ Y @end
( f+ ?0 W5 a; j6 d, B1 v+ G; {0 \ U% u# R
to-report creat-credibility
& ^: q; U, s; j% Q/ ~+ `& Xreport n-values people [0.5]* Y2 r7 W; s, S/ B
end
- Y4 t! A% [2 Z! e& p. n, R% Y7 O6 D* x5 L* y- H
to setup-plots* y( h$ z2 A/ h5 z1 A
0 }% u9 R2 \8 j; Z6 D R5 ^- hset xmax 302 \2 y$ { K- c* H4 ~
t( x) `0 {) r" {: ?1 u3 c9 C- V5 U* Eset ymax 1.02 M0 j b& Y: q; c+ J' f
3 O P$ ~( F! _7 k6 _5 Mclear-all-plots
/ y) C5 _' X) s$ s) w: \6 G- ?( S' ?$ K/ h5 B$ o& x8 H. i4 b, M
setup-plot1
+ x6 ^9 y" {' u1 ~$ f: M8 e# N
3 d* }- |# I8 Y& ]4 m6 usetup-plot2
/ U8 d0 B, ^ E3 p; ` `
: o" M Z1 u2 m- ^( msetup-plot3
& }! h; Z* R ~/ n, e* a7 dend
* { j. v, `* [/ @" i6 V% q8 q+ W( a5 ^/ m
;;run time procedures
: ~' s1 F. ^, X+ T
- g+ y* A: R4 }- o# K8 s9 a* B* `! Lto go
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ask turtles [do-business]
$ y g0 l3 a/ T0 f9 O. R( x- Wend$ x; q( u+ Z5 L6 O
* Q5 ^; i2 J/ C, n: A4 g7 C+ v2 Zto do-business
/ r b, p# N& |( q( p& `; s% A" u( x x& R3 S& H, |1 K: [, t) w
5 c' z. Z% ^7 Hrt random 360
2 w4 O3 g. |* c1 d- Q2 R
7 Z% H3 b( N% k zfd 1
' Q$ o8 H, ^/ H, ]/ M; T
8 j6 I& s) Y. k d+ V. I4 hifelse(other turtles-here != nobody)[
: {) d& P+ l6 f D) B' t
% F8 S. Q$ S% d8 bset customer one-of other turtles-here
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;; set [customer] of customer myself
- v5 ]; F2 G0 @4 B% S# D0 `8 ^* i2 K% p2 F X
set [trade-record-one] of self item (([who] of customer) - 1)
$ t2 w# c( R' X) h6 O/ N[trade-record-all]of self d, L; x; _% r; G$ N9 G: A" x5 y X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( ^) d7 D# e4 U" K+ N% i6 T% V( _
, \" d& K1 S. G5 U5 H8 B- h) jset [trade-record-one] of customer item (([who] of self) - 1)
N1 T+ X; I* Q4 C' A[trade-record-all]of customer
6 J: l9 u5 f. g C: I" U
7 E, `( h3 L- o& t+ p: wset [trade-record-one-len] of self length [trade-record-one] of self) t0 W8 \/ c! h& s& Y/ S. i
J2 c* s) q! F- L4 _/ lset trade-record-current( list (timer) (random money-upper-limit))
, M2 ~2 e- g/ n- U w9 s4 ]. V; D' t' r- w, t
ask self [do-trust]! D: C0 z' y' q# h( [! n
;;先求i对j的信任度5 n. I$ j! G6 u! k( d; @' F9 C
5 B& U& b# d0 A' d. kif ([trust-ok] of self)
& ]: I( `' B5 z! g1 P;;根据i对j的信任度来决定是否与j进行交易[3 l, B' r8 f9 ]" T: W4 w+ E: H% G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) \# ~1 D, v3 d
. ?1 a0 v0 B, M; d) z[( r9 p; x- Y+ M, Q
2 z+ S' X! I: H' f# q9 Tdo-trade( t5 d7 v& j! q
4 u7 h# y5 w0 b' mupdate-credibility-ijl7 n. g4 i% ?) @0 S/ T
( N& Q1 D0 P3 ?: E8 iupdate-credibility-list0 p7 x/ m& ~9 g8 Z) C
. l- k5 e0 R$ d; z, @( W3 [
9 ?# j: j- @1 U( @& S4 t- C. Q$ U/ hupdate-global-reputation-list
$ h! K/ R. `/ K0 l
& w: Q# |1 y* e+ @5 Y4 Lpoll-class
6 ^! i2 x+ R k" B) U7 l' ]# `
9 ^- f8 F6 u7 X, ?+ ~get-color
- J$ r8 @% @8 ^& B8 u3 c* g4 C( v, e7 D
]]
3 C+ a$ o( Y, w4 L1 _' V
6 r8 B4 @; e C5 [) J;;如果所得的信任度满足条件,则进行交易9 U$ m* E+ p/ p1 r4 D6 T
6 N8 K) P- [$ i0 [6 U
[
+ B/ H& s% @7 _6 C# D+ o" v& ~/ s4 j0 p; a3 H2 l7 g4 L6 r7 h5 j
rt random 360" k# v2 H: {/ M- Y& o' L
) `/ ^1 K- Y6 ^
fd 1
' ?8 h% K8 C5 ^7 }0 K0 b& [: i+ s- {. q( G& J, F" Z
]
, [' L) _0 Y1 x" K8 W: d0 ~9 h# m7 E+ J# Y) i* \ y* r
end
8 M2 T- F* I' ]
4 W6 @1 g! n4 ~ O8 D* U7 Zto do-trust
7 D: m- y) f4 W6 o2 P8 Lset trust-ok False3 X: c% }( ~9 Z
! K8 N6 {! r/ X+ J9 L
- Z5 m- c+ p: z4 u' X, k, C
let max-trade-times 0
$ m- y, o1 F0 `# l6 Pforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 V+ u/ m+ ]0 e& k- t& K2 klet max-trade-money 0
/ ?1 v9 x {& G# y; c y! Dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! [# N* K3 j+ |0 M8 {7 mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' ^$ A- i( q; r3 D7 z
( \7 X9 u6 X2 e* ^; U6 D6 f& [* d% I
2 r5 M7 S2 K x5 ~) Jget-global-proportion
- w; ~2 x) v( m& _let trust-value! d" a7 `, F; P! F! p
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)" H( L( w. K- l# y% N
if(trust-value > trade-trust-value)
4 |6 ~, Y( M5 J/ v[set trust-ok true]
: A+ I) e$ t! d$ S3 ~) c7 rend
* g3 G7 S8 _9 @
. f) }4 ]. c1 q3 L5 xto get-global-proportion; d# W5 d( C! L
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 H+ B" k. c/ E5 C$ ?2 r! p: V2 f7 Z[set global-proportion 0]$ G7 L! S$ n( |! e+ J; U
[let i 0( ?: k' P, R0 K6 ^9 `5 @3 `9 D5 H
let sum-money 0
9 ^* W! o+ V) q' Owhile[ i < people]$ l( }( l5 l, {7 P9 u. \
[/ B2 |. P/ j s% Y; k4 z4 g5 m
if( length (item i
! |$ j% u3 t8 Y% R[trade-record-all] of customer) > 3 )" x) N3 |! z3 Z+ a
[
) E% e1 ], f- N% v. Lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 e& _; x( o+ i) x7 @/ ~$ N]1 B+ s; n+ u% ~. I
]/ w1 h' O1 M9 @% P
let j 0
3 h" ~: [6 Y! m% H: v9 V0 Z+ F: wlet note 0
8 o5 Z) L5 ^" ~1 [& Cwhile[ j < people]3 E* Q7 Q# {3 p$ Q2 v( I
[" X- L% w; {, q# Q" Z4 b# r" ~
if( length (item i- s4 [: ^( @- S0 J
[trade-record-all] of customer) > 3 )( O7 ?7 }; U8 f9 R6 b% o7 @! t
[
: U( s) z/ x2 N- M- @" |ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 d$ f1 L2 j) ]( d+ F6 b8 @0 ?/ b. Y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 Z4 K4 j+ A7 g) Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: p- [8 _+ @* H7 b5 k
]
7 T7 Z$ V+ M9 H) x; X]4 [% J" \& ]$ t0 `4 o
set global-proportion note+ P7 j* M0 C3 ?: `; _
]
; J6 ]7 x7 B8 n0 i, Zend, D1 j* H) q0 D$ Y
) L# T# v& B0 @( p' {
to do-trade
# s# X! p# E3 `, U q3 Z2 N, H* e;;这个过程实际上是给双方作出评价的过程* t( k: z; [& ?' s- ^# A2 E5 I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* n& I& @6 K* C* h3 l" \ {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) `" f2 o8 x7 q6 T& o3 g* N; U2 Aset trade-record-current lput(timer) trade-record-current8 \+ N" F3 m+ p* C+ e4 _% ~+ F. x
;;评价时间 z) K' S9 N4 w3 w. @
ask myself [
' M' r. w g6 b8 ^2 a/ ]update-local-reputation
' ~ c& p2 K# F& J3 G0 Mset trade-record-current lput([local-reputation] of myself) trade-record-current" G' E2 G9 t% E7 G7 m/ U
]9 T1 L$ Q, e+ g7 ^5 U% P- F
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 u/ s) ^4 i; H. Q;;将此次交易的记录加入到trade-record-one中8 s" d# ?! I! F0 ?, L, h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) j8 u, n. i8 w1 O: k8 T
let note (item 2 trade-record-current )" u! M4 S- z- n* H) N2 p
set trade-record-current. w7 @9 q7 x% |9 C% E% o
(replace-item 2 trade-record-current (item 3 trade-record-current))9 |. d# d& D2 R0 X( m5 p( ~
set trade-record-current/ s4 V: H! \) t {
(replace-item 3 trade-record-current note)
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6 {/ b5 `+ |5 H3 M9 d6 t/ [" o, q2 }8 |3 O' U
ask customer [1 Q2 g2 i5 r; `* O i9 r( l" V
update-local-reputation
' G' i' c+ @7 ^# f+ a( @8 xset trade-record-current
% o: k' N2 v2 E- i; D8 d' G(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 S: l% Q5 v" p" F7 q1 e& w$ R* u
]( v5 X9 b6 m8 P/ F
2 ^0 q% Y4 l5 m/ @4 n$ s; {' f
; o U1 R* c) g4 b* H' xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) C' p3 v% X/ k% v( g* w
2 P; e+ k6 O$ p4 b8 Mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ B+ X9 z5 R0 y9 g$ a2 |;;将此次交易的记录加入到customer的trade-record-all中
, J$ |0 }9 U& M+ G; ^end
* ^" S# G. e. O! Z
8 ]$ A9 x0 { K) d, W% Xto update-local-reputation
) ?! v# j9 a2 p, Fset [trade-record-one-len] of myself length [trade-record-one] of myself% e: D" Y7 S" f/ Q B
, G* n" ]+ n6 }' B0 v) E1 w% Q. V! W% D [6 o# d& m1 N1 {: ?2 S
;;if [trade-record-one-len] of myself > 3 3 ?8 q3 r5 A" p5 j+ M
update-neighbor-total) a* n- M6 \! R) s8 \! W( C! H
;;更新邻居节点的数目,在此进行
( |( d6 N1 ]# ]3 ] z& Olet i 3$ ?' T3 Z7 W' o$ u
let sum-time 04 R7 k2 w ?/ a; I2 o" M" K- ~
while[i < [trade-record-one-len] of myself]
- D, N, o& M. l% I[
: V, u2 I' t1 ~, p uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) \9 x; m" x) ]; X, c
set i" j- M$ W2 r8 L {2 Z# C
( i + 1)4 w9 y0 f c" @/ S
]1 W/ L9 Y6 a6 e4 Z
let j 30 ]' G4 `. y! g
let sum-money 0! u0 j& X1 N1 I; q4 o
while[j < [trade-record-one-len] of myself]0 o* W0 @/ V: \9 `2 b$ |7 ?
[* B8 H, n" O2 f
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)9 ^0 ^7 ]9 {5 N
set j8 `- _7 H y' Q: p; Z# Y8 E
( j + 1)$ j4 b! a& y9 M4 A5 L( C! t: t
]
% p2 {" ~$ j: llet k 3. w# t' }& x) {% N
let power 0
( I2 O z5 E2 V) N9 D! g# Y3 Ulet local 0
! b$ L& d2 h, p$ g2 e6 h! x- x4 w/ ~while [k <[trade-record-one-len] of myself]4 z% z6 e8 u+ F- u& V
[! d+ V7 z: a+ I+ ~4 ~
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) 4 J+ ]! {# }$ r( f, v( I
set k (k + 1)0 c: X& c3 [; h( g: [) p4 L" Q
]
9 P7 [! }% O: N5 t A* k% Aset [local-reputation] of myself (local)
. t0 c; t$ E. f1 z- y1 send
1 t7 R1 U, O& h# _" ]& r. A2 y
1 u. }. u6 I7 S f2 p4 x* Cto update-neighbor-total# L2 g% u7 l: z) C) k7 _
( p _" r1 w- Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]1 Y" A# ?! j, f3 A5 O
* k# t/ R/ K; J" X- K6 ?' ~# T9 Q; h* {
end; B. h# h, W0 q! J$ X% U
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to update-credibility-ijl
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, V7 R' X2 P2 M$ q% D2 c. @, ]) v;;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。( m7 {7 b3 h- a1 m- d, I
let l 0% `. \+ ]7 c$ _& X1 @1 C
while[ l < people ]
: k9 ?" ^" ~8 B6 C/ j;;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 Z) K: h. \, Z2 e[
: w4 m2 a, O/ ~let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 ~! U' u. C4 y# S. I, E( Q) U3 z9 bif (trade-record-one-j-l-len > 3)/ D+ U% b8 w, J1 j& @9 d# P
[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 @1 R% M4 t. x" x* ^% \: U1 S
let i 3! D% k4 S; z" u" ^
let sum-time 06 Y* e. ?# } @. j
while[i < trade-record-one-len]: O6 |* w v( R X: R1 C
[6 L3 G; h$ c# j' i2 |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ U( Y& c* {" H# n& @& Z% s
set i
: b1 ^, U" A, h, D2 [* ~1 X0 \: {( i + 1)
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5 k! P& u& `1 w0 k/ |& h9 jlet credibility-i-j-l 0
$ F' c5 T$ q0 Y: v# m5 l" @;;i评价(j对jl的评价): T% b% o' M" l* b- u
let j 3
* x7 G% v. R9 ~, G$ [/ W" F2 Vlet k 4
6 W" h. y1 b/ \- swhile[j < trade-record-one-len]9 F% N. }7 c- }' O2 @$ U( [- H
[
# Q- l' I+ r5 Q n0 f# m7 [2 Hwhile [((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$ g8 q. p8 I# f
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)
5 c5 }2 l2 j7 S1 P2 Kset j
6 w7 J. {; q& I8 `3 A: u( j + 1)( t1 A' W% C+ O# }0 s, W
]0 w6 L+ K" _( n
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 ))4 z! k+ e6 |7 @& d+ ?" C
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* O3 P0 R3 x! m$ v- H5 q
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 }! z' o8 X/ d4 V7 m# |;;及时更新i对l的评价质量的评价
4 z6 s/ v! i/ z: c2 rset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ o, H% `9 ?( E; L
set l (l + 1)$ |! j& i$ e- s* ]9 G2 o) h
]
0 I: U8 _! O3 ~end: D) S8 f# w: G; C/ W. U
1 l) A/ d% J5 |; u( m4 C* M. Zto update-credibility-list
* m# k6 ] f) ]: W: E H; Elet i 0& L) Z, {' w1 T9 `0 X& _+ v: W
while[i < people]2 O/ k/ ]9 w$ r! ?1 R
[
5 v1 }* Y) c( P& K$ plet j 0
6 h0 \4 q3 c/ n0 Zlet note 0
5 g0 K1 p2 H: dlet k 0& n2 l+ z R. i1 w
;;计作出过评价的邻居节点的数目
* g. l/ Y0 {: j/ Y2 C' l- pwhile[j < people]* s0 U5 u4 f0 f4 ]
[8 C2 R1 F4 o- x5 w7 \
if (item j( [credibility] of turtle (i + 1)) != -1)
; _' k( V& y p6 l9 `;;判断是否给本turtle的评价质量做出过评价的节点" B, @' \! z& o6 C) N
[set note (note + item j ([credibility]of turtle (i + 1)))
) k. G6 G9 |& O5 T;;*(exp (-(people - 2)))/(people - 2))]
( s) x4 ^) x1 O0 Fset k (k + 1)
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6 @+ w8 k$ x* f9 _( y6 @set j (j + 1)3 B0 P+ y: }! ~. e' t
]- {7 A5 @# E+ S* ^$ s
set note (note *(exp (- (1 / k)))/ k)
" h9 a( V0 h; f4 Gset credibility-list (replace-item i credibility-list note)
( J" C: F+ ^1 Iset i (i + 1)
e% J* {+ f, ^& U# E$ ^2 e+ t8 p]8 m7 w6 n* C4 a4 a" O
end
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to update-global-reputation-list
2 B7 g) ~) m _# A F/ G2 `let j 0
' b( a! E* P b# hwhile[j < people]
3 h% t P7 ~+ ], f) f! u[
7 u9 H% Q: c: l- p* Klet new 0
7 O/ N& y D) }+ R. ?: _;;暂存新的一个全局声誉$ B7 k! x- b. u; N# x a9 q
let i 0+ N) m- Z- R) ?" V. h; Q
let sum-money 04 R' H4 U, g% ^
let credibility-money 0, l* h e" V: D) w ~6 c R
while [i < people]( z! r0 x1 t, ~
[
% ^1 K! L1 m% w4 U3 M7 n# vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* c9 G1 P8 d$ Q/ o
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. S6 a" H" p& s1 m) iset i (i + 1)
3 |' O: c6 R1 J5 `3 O]
7 b" j) a; S* P0 }1 \- P8 Elet k 06 ^4 V0 ?) ^* ]+ [' L
let new1 0
) t# n1 f: U5 ]while [k < people]
! q7 k! K$ q( n0 f; l( B D9 E3 I* B[ a& ^$ y: q- s( ~& e. U% ?+ R
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)
9 q6 U W E X, cset k (k + 1)* d6 t4 p8 q' t, p' e5 w5 F6 Z. W9 t
]& @& n8 \5 ^3 Q0 ]/ S
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # l/ K+ g/ _% A1 _. }+ b
set global-reputation-list (replace-item j global-reputation-list new)( [9 q; P. Z4 t
set j (j + 1)
" ]+ V5 S9 E* E6 O5 c# o]
; _2 A* E- @) [- w2 ~end
1 ~5 {' u! D" d9 Y
7 e" Q- {9 F; c7 T
y9 A8 P( X( j1 Z7 F, Z8 h" o
: U$ P( E8 ?- wto get-color/ Z1 d- ]. l: o; g& R, S# i1 Y# s' r
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set color blue2 V3 }7 j. d$ }) }( L& k. M% m
end1 b A0 @) Q- x, u4 }7 k) c
) H& u# Y' k! b! L% w9 p! _
to poll-class" D& t+ J6 I9 `. l7 ~+ p/ I4 u
end, h$ J5 n Z! ]: c
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to setup-plot16 j( [- \2 R8 c/ Y1 ^: F
h B9 E3 o3 ]! fset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax8 _: \. L) `0 L0 u; W6 Y& I
% e8 ]* y" }/ ^+ m; k
set-plot-y-range 0.0 ymax3 m: ]9 v2 F0 T
end
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$ j m9 S" L9 w- Sto setup-plot2
5 `' S& I) F* `0 n& u6 S+ b X1 Q1 d1 m: Q
set-current-plot "Trends-of-global-reputation"
6 N F) v x o' J
4 p4 b/ h, E* ^8 Tset-plot-x-range 0 xmax* i$ b0 Q8 E# P
$ `; P1 c- f; L/ P1 C' K |set-plot-y-range 0.0 ymax5 p; Y9 G0 x6 J) Q* `' V
end
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to setup-plot3 T, z9 V4 t3 g' p5 \
# Z" G) W2 a) W0 s7 |' Jset-current-plot "Trends-of-credibility"
+ L: \) `$ B0 B, P% k6 K: H0 _! C2 z7 o: }
set-plot-x-range 0 xmax
8 T/ M+ {+ Z: R% y
# K; q7 z0 @9 G& jset-plot-y-range 0.0 ymax
2 {. _" m4 n! `! a' v1 fend4 c8 N6 q6 U, h: i* k3 b$ O' N
- A) K' @* ]! t4 P9 s. Y5 O8 Fto do-plots/ G- S* Y5 t$ h: o+ S
set-current-plot "Trends-of-Local-reputation") d& }1 n0 Y+ M# S1 N6 R4 _2 z6 [
set-current-plot-pen "Honest service"
( [& \2 L! H, c1 |2 D/ nend
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, u4 j6 P' q- s[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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