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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 Z# {/ q% H# _
globals[
Q1 C2 `$ |7 e& J. n9 [. Exmax/ F+ c* u" Z0 I+ L
ymax) O$ t2 w% M) \3 _1 Q I& ?
global-reputation-list
- A8 h4 e9 T7 B& f
* F& \" n. ~8 B; v' b% h2 z1 {;;每一个turtle的全局声誉都存在此LIST中2 z, y' i3 F2 s
credibility-list
& M7 I* z2 r+ p( ^7 F;;每一个turtle的评价可信度
) y, ~' r5 v1 u# h0 b" dhonest-service
9 g1 u3 c7 M( A1 Cunhonest-service4 S2 \, |0 [. Z8 z' k' T
oscillation
# N/ z" S7 @+ P4 _3 C4 u. krand-dynamic: T J. p( j+ m
]3 D" e1 } Y, l$ l) b) @
6 ?% d- ]! {3 @& P' W* W) Kturtles-own[
4 J6 E4 y6 t3 m0 xtrade-record-all
4 K. }9 q. u5 ?' Q;;a list of lists,由trade-record-one组成) p6 `) |! f$ q
trade-record-one" T2 _0 h) R( {
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 g% O7 v) j/ O+ D" K1 F' l6 F8 D; i) Z. }, {4 a' I* c4 [
;;[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]]; U0 i2 }1 l! |0 F
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]- p# v1 q. C7 e4 L! v7 X, c2 h
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
: O9 D6 k9 f$ M' \) }neighbor-total
" X/ e9 N0 W5 K! S3 l# ~7 q;;记录该turtle的邻居节点的数目
' w% Z* W: F0 q; m" btrade-time
0 B2 c; ~! J4 S/ T$ {;;当前发生交易的turtle的交易时间
3 m* [2 k% c' o7 V) ]$ Lappraise-give
3 m& x& _2 K1 O7 K;;当前发生交易时给出的评价
+ J) f* D& j* ]5 Rappraise-receive- d7 C) ]$ K9 V8 Z! I; L
;;当前发生交易时收到的评价
& q& x) A2 i, ^9 Aappraise-time7 J/ s% s& {7 T! _+ R
;;当前发生交易时的评价时间
& W. ]* `1 B3 n2 ]# T$ l2 H8 tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉2 c1 F0 V$ [3 B
trade-times-total0 _& I. G1 n; V3 B
;;与当前turtle的交易总次数
5 Q4 h$ J$ z6 J9 s5 rtrade-money-total
( n9 y9 v% a) l! A. n3 H9 };;与当前turtle的交易总金额' G1 q7 P/ y7 Q6 \! A% d
local-reputation
* o* `! j P/ z4 W& Z1 Uglobal-reputation
$ Y0 z$ l0 |6 h$ L- Y/ |6 C# ~, }credibility5 i% s; Q' w+ a, b$ b% I4 q4 Z
;;评价可信度,每次交易后都需要更新
! V3 o2 t) n8 f; ^credibility-all6 V& q6 o: ]) J2 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
, i) r5 b: i2 w" _7 w0 m9 c# d( p2 |+ A9 H
;;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
; @4 h1 p2 [- a, Jcredibility-one
, e+ `7 \* ]/ P1 \ A# 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! J1 d: F A9 ?
global-proportion- T/ @$ P+ G0 J( X% I/ v5 ^$ O
customer! @% x( U; O% x4 d: a
customer-no
0 i4 d4 {8 M0 x4 R/ }9 X1 Ytrust-ok1 `9 M: o9 s5 t# D
trade-record-one-len;;trade-record-one的长度
] z, V5 {$ n* }: F]/ ?4 N) v3 U. A0 e
0 T r1 v: l f0 J2 \$ |' p( A
;;setup procedure- W0 R+ x) _% }. Z+ j& {
|& E9 @% U& P
to setup
# z( j0 B; [* Y; V
; H' L6 `0 K9 b/ D/ Bca' v1 x$ M" }" X B0 {
/ U) W+ y6 p2 Q* d9 \1 y5 U/ Dinitialize-settings
8 @3 U- Z* b- ^- \4 T: B8 h) x5 O4 s4 {
crt people [setup-turtles]( s. W+ S1 P# K$ W
# Y, ]9 P( l8 j$ i
reset-timer( q* y/ a m3 p
+ {( ]' \$ c5 \7 Gpoll-class
: G7 a5 N- _' }8 L: R/ i
* U0 R4 s" M. Q& @$ U$ p4 Ysetup-plots
4 `( [& O0 j3 [, \. j' p- c
6 l- O/ Q/ z. F# {- j% g4 I" [: Gdo-plots
# C- y4 H2 M" V" _& I+ d" `end
5 w" h5 e& {9 g! j8 ^8 k0 J2 `+ t. P! i3 v% p' k
to initialize-settings( y* K, F2 {% v3 Q, t; t5 |
3 w) R @, z# q0 `- f/ wset global-reputation-list []
( j$ }+ f' ~% F% o# s v7 p. {9 V! O7 S$ I8 x8 e
set credibility-list n-values people [0.5]
. u1 H5 E, G" V( n4 c+ U# a
9 Z( u5 M! B) H" f7 n3 sset honest-service 0
) Z* L2 k) g: w G7 f3 |4 x% F! y' l; E# j9 R, D9 d8 r- {
set unhonest-service 02 x; |, u" c* H2 `
8 r/ d* E, \5 m7 eset oscillation 0) Q& h7 Q' P7 C* m1 e% G1 e
6 F6 D' l, m! A1 j1 G# X3 o; l
set rand-dynamic 0
0 H! z2 t5 T, F: }! K. J1 mend3 J {/ S. U1 B) ^6 s) j, y) ?
2 w" O5 b, D1 e$ q! |to setup-turtles
j$ p, x, h' J8 K c) q: Y3 z& P. Qset shape "person"- f' _0 r( E( H1 U4 A% l8 R
setxy random-xcor random-ycor8 K2 g% o) b- Z
set trade-record-one []: _7 h$ M% A+ y
$ Y" x6 O5 H2 m/ H, M1 g! f* T# L' ^
set trade-record-all n-values people [(list (? + 1) 0 0)] 3 x- f+ \0 h' @8 @. d
4 ^( ]: w& [2 x3 Pset trade-record-current []/ f* ?; y4 ~$ y9 B% S
set credibility-receive []
6 @" `+ Y! g& pset local-reputation 0.5
- L9 a1 r9 ^: r% X* @" x$ bset neighbor-total 0: ~& L b: L8 c0 G3 B
set trade-times-total 0
. _+ v$ ~ \% p; b4 Eset trade-money-total 0
9 k3 }, l# \5 gset customer nobody
, ?7 I- E& L8 Q. C& \. {1 e( Dset credibility-all n-values people [creat-credibility]' |) f7 f2 ]+ _& ^
set credibility n-values people [-1]
0 J3 m6 m R2 {" `get-color2 J, u) u& s9 J
5 F# N+ o% R- S8 yend r8 \, p" y2 A0 V
- ^" ~8 L. b% U9 C; c( \6 `
to-report creat-credibility* q; V3 i7 U, @
report n-values people [0.5]
: @ C3 H- b1 S/ }2 lend
) M9 z S" F" s+ v& g% i3 m% R
to setup-plots- X& G, {/ M A$ g8 ^6 [; H% a
$ b& T3 u2 I) q! _2 b4 Tset xmax 30
$ {* C m" ~* t ?2 Q# }( `0 w3 g- h* }( g: R+ {
set ymax 1.0' u. l. k/ l# @6 Q. _: l
" J1 \% O C8 U* Y. T
clear-all-plots
a. q3 ?4 _; U# i% g( H* t( ^1 }5 L7 o+ e
setup-plot1, i5 i6 R. k; T& O+ s* [% y$ Q
) h' {" Y5 H7 ]/ ]setup-plot2
$ L; l- Y* F" ]3 C( D) y( R: B7 c4 {" f: I
setup-plot3( b8 ^' K# A+ t6 Q L( S
end- c8 e5 ]: C: L% {! S
* S5 t' s" b5 U! [0 D* L9 V. x;;run time procedures
! `4 z2 Y4 }8 l* b# m1 [8 O, I8 @* M5 j+ ~' [$ ?0 S
to go
' N, L% u& Y7 M5 U- P3 \3 c! a( z
- [. d: B3 Y4 W* h8 eask turtles [do-business]9 v3 s2 \1 e1 z w! X- Z
end( @$ ]* U; s! m* Y9 e
) S" v# e/ _' } Q$ S- @
to do-business
2 w6 K; s0 j3 S+ f
: _# v9 y9 t* z. ^& i
& m! n, h h6 @" drt random 360/ N9 P: @1 h* g+ g
) G. G Q; S) T r$ g, s0 G9 mfd 1" P2 b8 q4 C4 d# F: R. q8 S0 _9 m
1 S3 }6 X$ j- kifelse(other turtles-here != nobody)[
( O \* |" G0 c0 U! a# r7 y* w, o1 p$ B" y+ i
set customer one-of other turtles-here
5 Z& F; c6 _) K0 M7 ?- Y1 N: x
;; set [customer] of customer myself" {4 e$ u6 N3 ]2 U
3 Y0 b2 h7 g( g; k0 v
set [trade-record-one] of self item (([who] of customer) - 1)2 |" W2 \2 [0 v. A% I* L: v
[trade-record-all]of self2 j" Y. ?# X& i( W- S
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& s. x2 t0 a4 v9 g" c2 z
" ~, [, h4 Y9 O* f1 h3 a+ I4 n# ~set [trade-record-one] of customer item (([who] of self) - 1)
9 P7 I8 w/ b5 ], X' K8 \[trade-record-all]of customer* I4 J- s+ F! ]0 e9 I' }( n
- v; Q0 V$ r% q' y( Y5 p6 Oset [trade-record-one-len] of self length [trade-record-one] of self: g @7 K# }6 `
( Q' y0 Q0 {) q% W- u U7 pset trade-record-current( list (timer) (random money-upper-limit))$ y+ h$ L1 F' b5 J
; w9 {+ ]* |$ u: O2 A
ask self [do-trust]
/ {' ?7 W' Q, Q2 P;;先求i对j的信任度
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if ([trust-ok] of self)
& Q9 L$ H, m: u. p;;根据i对j的信任度来决定是否与j进行交易[
2 E' l- P* H0 {9 X# I/ Q/ uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; _* s P! e# G+ A: Y6 e
) P5 R: j# O" z$ q+ u6 u
[
# r$ u, X5 H H- j: a" U, b. }8 Z6 @
9 Z* `. Y& }* y" L7 kdo-trade$ p4 `, J- Y4 B' z7 U6 t. j. n1 t
/ X; p8 k7 |0 Y1 H9 ^% a6 kupdate-credibility-ijl% _4 e5 c" B3 F' D( j
6 U. ]% E1 I _9 ^3 gupdate-credibility-list
4 C1 w; _; s" J* M7 ^, x2 E8 Q' t( b6 e2 r& j
) _" l. c( M2 v+ q# l
update-global-reputation-list
5 F& L8 ^2 H. b, ?8 E* ^
" B' @' v" c" Q$ U( b J) D$ c- gpoll-class3 R; A# c3 \$ A- \) J+ E/ J8 E
- M% y6 z {* b' y8 @1 Sget-color
( V+ Z* U6 [9 x3 R: X4 F0 e& Z! E9 _
]]
3 c# H: V. ? k" V A* C) R8 ~6 S' `" r) v% q9 I
;;如果所得的信任度满足条件,则进行交易6 _0 e( J/ p6 N1 n5 p# U% `( t1 \
! x! c8 I' r8 g[' ^: i9 q$ L: u1 o- d; x; d" F
* `! j7 b& \- P% ]+ Yrt random 360) N; M$ y1 M( `
% v! Y3 f6 E0 z/ m! Vfd 1% |8 ]# O" G1 e7 G) q' l
: N. E4 z/ G2 B8 E% R! X
]5 x, D1 A4 l9 n
: c7 h+ @" T) ]/ h; Qend
5 z) t8 v( w b6 }4 W0 E4 }6 R2 c% o- X1 f3 B+ X) M9 C9 m
to do-trust
! k2 O/ h$ L) N: `. U1 B/ r% T, `set trust-ok False* z- J( O- Y: P& t3 x1 Q6 _( d
% E! @7 ]4 f: G
. ]6 Z% |$ K. J: e. P0 k# K
let max-trade-times 0
9 _- B4 @; Q/ z8 v! A9 aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( G& r9 ]; {' `: {) W6 vlet max-trade-money 0
+ L/ U+ G z5 v" rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- f; Y5 G* j, O: b& Rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ l. V8 e& g* {6 j# P/ v
3 q2 T" W5 E2 [7 ^0 U W* ^+ N3 ?8 G" j1 D7 z- L1 m: m. \
get-global-proportion' u; i* P r- Y! w p. P' r, ^9 s
let trust-value
?$ \; a- u; z+ r) ]) U5 d# v$ R* U- c1 klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! I( Q; y) @9 Q% X5 a5 x
if(trust-value > trade-trust-value)
5 \- Y4 A( |+ t- G) t5 y! Y3 o/ y# u) w[set trust-ok true]
1 D/ o$ g( B: e" q3 Q. ]( zend
3 ~1 X, R8 c7 p8 [/ Z# b3 }' i9 m- E3 O: E% b
to get-global-proportion, t! W8 u) Y+ g/ [4 I( |
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 i" `8 u" |; @, b" `[set global-proportion 0]
- z( d5 s6 @5 g$ h, s8 O[let i 04 a+ y! o7 W8 _" g4 k
let sum-money 0
- c; ~/ {/ a7 ~6 n" i3 B* d- G ~while[ i < people]( {* I/ |8 `& s
[
5 e. L* W1 M I5 k3 M5 t( O; eif( length (item i
7 f% m( M3 N0 U& V, R- [[trade-record-all] of customer) > 3 )
( E E! o8 H) C1 Z3 M( m: a3 |" u3 N* f[
* ~$ k8 A$ t7 a1 [1 e; [5 J' Sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 z1 u" ]2 T7 g/ V]# N0 `; q, [* K# j
]5 ~. l/ Q9 j1 [/ l
let j 0
! V1 L( Q. o3 k: U# Hlet note 0
* S/ I8 b, B6 R0 Hwhile[ j < people]
4 Y. I! R- g* j! l[
* F, W H4 I$ r" b) m. Q @- ~2 W8 rif( length (item i
( V8 T6 I8 f9 P0 P& L7 Z X[trade-record-all] of customer) > 3 )5 X8 ^, c, x# h0 N! J
[
/ u& A5 q, j" L* o$ Q, xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ @- R+ D: [! Z- [7 [4 c9 x- j E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, w' ?' l& S& } b$ X _, a' [" O[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# @. W7 D6 }6 X% g4 d) M, N
]
# B/ ? }3 t* \, r3 R]$ _) k0 ~, y9 r1 l2 [1 T
set global-proportion note" w8 G% }! S% q+ \' E
]
& P+ y0 {" \0 V8 o, k' M7 f2 dend
- o Y8 G" s3 \% }- ~, r% v+ |6 c7 } L" A
to do-trade3 `+ ^% W `6 ]7 q0 _/ z/ I
;;这个过程实际上是给双方作出评价的过程
5 {, t/ h- A, \6 O8 {- aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! I2 i' t8 \3 ], c* _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( S3 p5 }! o8 ?set trade-record-current lput(timer) trade-record-current/ Q! B. d2 T- ]) U
;;评价时间
7 U' n1 Y( F/ \# W5 o; pask myself [
1 \- W& U1 N# Q& n% Y3 vupdate-local-reputation, N3 N G6 M5 {" i- Z" y f
set trade-record-current lput([local-reputation] of myself) trade-record-current2 K3 R! Z8 ?. q1 y
]! Y+ \8 u. T6 D8 r8 q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" _9 j1 j! p2 M. p;;将此次交易的记录加入到trade-record-one中
, T6 _4 b$ Y9 Q% q# @: U' Aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ s) \% d0 C1 \! slet note (item 2 trade-record-current )
! v: b. C- i/ o$ n# J4 Jset trade-record-current
# H1 L2 D. j/ ]4 H, q* e- n1 P+ |(replace-item 2 trade-record-current (item 3 trade-record-current))
3 ^5 i/ n4 s" A& Eset trade-record-current; e# h- B! `7 S+ N( B4 }; l; B& d
(replace-item 3 trade-record-current note) F: {3 b& `. L) |
: ]% a- k: r. P1 E
- B2 [! }; p2 jask customer [! x% y: J, m' A' V$ g
update-local-reputation
2 m) c7 ^3 W5 Z# \& I) H% Y& Iset trade-record-current
1 K" g: ^. e: C1 l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( s. M/ U) q& N7 J
]
, G4 _; r; g% F) d# o/ W
2 Y: R! l8 v+ W( k; N2 o
+ I9 E3 n" e( T; f3 Vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ E+ [: _: V6 g) {% q) i
$ z$ X' N6 r; l' w5 Y0 Q8 Y7 `7 r( Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- _$ s) U& `0 Y
;;将此次交易的记录加入到customer的trade-record-all中
/ U, k" P& Z% C/ O0 p G/ hend; q7 d* b( G/ F6 d
) }3 V" }' x% ~0 m
to update-local-reputation
9 x$ d2 D6 o, m- g2 K# jset [trade-record-one-len] of myself length [trade-record-one] of myself8 J- s8 n7 m) \- C/ ?0 W' x
! U9 C6 G# u6 m2 K- Q# Z
! d: J+ v+ W9 Z! A- v& x3 I+ ]1 ^
;;if [trade-record-one-len] of myself > 3
6 ^' [, j, }' Q Yupdate-neighbor-total
% t9 `* e" o; [/ Y% R;;更新邻居节点的数目,在此进行
1 B# Y6 {! `( v* r x- ?let i 3
! g7 R9 G9 |2 m% l! j& ?let sum-time 05 T) K" P: x/ N! n
while[i < [trade-record-one-len] of myself]" M/ S/ ~& H6 P4 u: x3 ~' \
[
& y+ w. N" N. s, F, d2 Q: H; A7 D6 Y* Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 h; h+ `2 m# g" ~set i
/ d# N8 _& h7 u8 d- m, I( i + 1)4 U7 {: x! x# V5 G" d. O. V
]9 Y) x* Y4 ]; Q0 m$ Z
let j 3
& H' e. W& ]. D- B5 blet sum-money 0% M4 t/ |: b) |; P
while[j < [trade-record-one-len] of myself]
) p* Z+ t. |% U/ K% P[
& H, W. V' ]! h' N# vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)0 M, C, m. R7 G. c; a: {
set j, L1 Y, m' {( l' J# @$ A) z0 ~
( j + 1)' }. a4 a& h" o0 N: G4 T
]1 |! |9 v7 v1 s. I3 y2 D
let k 3; n8 r. n N" p J) }- n( w& q; [
let power 0
/ C9 [5 E9 Y6 h6 P0 i2 Olet local 0
. `3 k- c3 U7 ^; s$ e" Z; P! [while [k <[trade-record-one-len] of myself]- z# c6 }4 | Y% O5 K
[
- {, L3 r% d4 ^6 s% T" H( w3 z- }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) ( m& A0 `* y& T/ h% D5 b! C
set k (k + 1)
Q2 s& B5 q% I1 v- @ o8 X* Q" ]], m) }/ _2 t9 Q; M3 w# j
set [local-reputation] of myself (local)) V! Z8 w# d/ {6 z
end
, f* N# G# G# w2 b" ]( H
: o, [3 }" l. P& z/ nto update-neighbor-total2 B* Z( v* x( @$ ?7 F' v9 y
: \" T' {' d4 J5 z* E7 E" |
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 t; K, t) p1 G% m z' u
' k2 @% d. v$ K F) p! `$ {- R/ P: S1 k7 a5 w, J( b
end
6 ]. i2 U; v' b! l& i) J$ {4 \4 m. Q0 C/ O8 L
to update-credibility-ijl
4 c1 E, F9 W7 w4 |1 N- l1 `/ p; H2 C4 B0 V- o1 _$ w8 e
;;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。
7 R R9 r7 @9 zlet l 0
; Q- |1 r0 l6 ^) V* f% Kwhile[ l < people ]3 t( O. V3 k9 h2 ?0 c
;;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 k1 {) i5 D9 U
[
& \% i6 ?) F; `( ~! a, Q* S* Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)# m9 z8 c% j- W9 g. E; H2 W" `% D
if (trade-record-one-j-l-len > 3)
. I; Z& L% B5 K, ^' J[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
, r- j( Y: u9 u% ~( ~7 r$ G" }8 {* flet i 3
0 H( J3 K9 Z+ }% klet sum-time 0. P$ Z6 M% s! ^' \
while[i < trade-record-one-len]: g, g- x' y b. t# a: x& n7 C$ h
[
8 f" ~" Z& G! d# Nset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 R4 T5 V6 w3 I- D9 U) E' v
set i
) O9 d' }0 z2 I8 `% D5 W$ e+ i( i + 1); ^ u" N5 W( k g9 O) @
]
* M* C- a/ p0 V |3 e& m! _/ u5 b! ?let credibility-i-j-l 0) R' @1 P/ H, A5 o; H- O) x
;;i评价(j对jl的评价)1 e: ]- n/ g: c' E& |: q$ S
let j 3
' V0 L! Q% ~; ^1 Z4 c/ @( M$ ylet k 4
7 v3 j) s* p* u% a' _ a' |# z5 k( }; Wwhile[j < trade-record-one-len]0 p' X/ B( b' q& p- x) ]
[" U( H4 o! w- g- R
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( L4 w3 P' q; Q- G; b8 Y/ A
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)
8 n- L7 c' a0 `$ Zset j3 o; X3 o" w% ?+ f
( j + 1)3 R" Z1 \2 B- g: j. [3 X
]* [6 g' _ B: }/ n: D" l
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 ))
7 z; a: |0 c4 |* y2 a# q; M* Q" O4 Y4 z# }
& n0 b8 k2 j% q- @( d# I
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* T n! v6 D4 P* l+ a;;及时更新i对l的评价质量的评价0 n: v; a- U ]% ]$ \; t. i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 B& ~' T5 b2 G* F5 eset l (l + 1) R+ f5 c: b0 M3 e/ o
]+ q' e' B1 h. `, y- W
end7 d9 \. e% f8 Y5 t+ C9 O' {2 m
K) P- C' l+ e0 Z: U, ^1 Y
to update-credibility-list
& b$ Y( w9 {; Q; @( Z# M& plet i 0
2 {( |' H8 P, [9 {& L# ?* s5 Kwhile[i < people]
" s0 s& D" t1 f8 `4 p! r[
0 T) j. b+ C$ [ J" l! Rlet j 0
/ [9 ?5 r( m" w# u. R7 Qlet note 0
, c4 |0 _; ^) C3 U- s' f( D% }let k 0
/ y: x- E) Y: t5 v;;计作出过评价的邻居节点的数目
0 i% M, t+ `- F N9 T* T' W c3 ^while[j < people]: {/ B( m) t+ g T+ v& S
[
1 O. \1 g& n r% Y; Sif (item j( [credibility] of turtle (i + 1)) != -1)
: _* w6 V, p9 o, F, U;;判断是否给本turtle的评价质量做出过评价的节点$ q4 c1 A" h8 m) M, H; ?) U) L
[set note (note + item j ([credibility]of turtle (i + 1)))
3 B. z* @, y# v4 V, a;;*(exp (-(people - 2)))/(people - 2))]# X( i: ~/ N. }! a+ c/ h h l; [" p
set k (k + 1)2 u% R/ Z B; J+ _$ ?- y2 |
]
) A% y: O4 \. X9 g7 v' E8 oset j (j + 1)
: ~ I8 d& H0 I4 x5 G6 ]& J]
* w3 I! L6 y3 a* y t- r" y" tset note (note *(exp (- (1 / k)))/ k)9 I$ y7 |1 M0 i; }! {
set credibility-list (replace-item i credibility-list note)3 t5 w# ]% u0 c" H5 r" a4 k0 D
set i (i + 1)
. T6 ^5 J! k* y7 c+ Q; M]
) L7 m+ ~: p8 e2 F! rend( ? ~7 T2 |: E7 _7 ?- G
. h% ]' u* e5 G6 q7 r: F1 G" {& [to update-global-reputation-list9 c& O9 z1 G' f- C9 i8 }. X$ U
let j 00 K- J8 j, ~) {. [7 l
while[j < people]0 w9 y$ \# l+ ]$ @8 n
[7 r7 l% e% x) _# U$ K% ^
let new 0' ~8 z; V% l, H, P1 _4 w" u
;;暂存新的一个全局声誉
7 b0 i3 i' t0 o0 p/ z) |; _let i 0# Y' ^' i( R3 ~0 F2 }+ u0 j$ H; D8 f
let sum-money 0
- A7 {$ b, q1 F# s5 z6 e4 Y/ D% a; tlet credibility-money 0
. @' h0 W- g: e! [/ e1 F3 [while [i < people]
" s8 }; g. k& F: Q3 s[# R) g. v* b8 e, Q+ [; `- b
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! f9 C9 L" v, g" X5 a& D# |
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ X: n8 T/ v' o- ~0 t q
set i (i + 1)
7 x8 ]7 v/ ^* x]
2 H. ^- U% L1 L9 i# a5 Vlet k 0
* D% E: G$ D( o Clet new1 01 p3 a/ j- y! M/ c/ q6 l2 ?
while [k < people]
! R7 J) H" b% W[
5 F* [& ?" Z# ^' [2 e) C. Rset 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), ]4 }+ G% q. I/ `
set k (k + 1)
& g5 y8 l$ d/ L9 }2 Z]- q; [7 Q. Z a$ t- M' G: W2 p
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 \$ Y2 Y: }% U7 Wset global-reputation-list (replace-item j global-reputation-list new)* g7 O: z) v* r$ _; P/ R
set j (j + 1)
' S+ L8 ~/ x/ D" S6 L" Y; ]9 p3 I% O6 {]0 R+ q6 v/ S; W6 v" ]1 y, [
end
1 A$ ?' c, u) f# J L+ j" j% b3 d E8 W1 Z4 w( r3 S( r: F; G2 ^
7 `4 K& f2 n$ a% h- ^$ G# C) y
, n2 U8 i6 Q# M% }1 y2 J$ L! `to get-color
3 L& _3 o" t( M# G0 u
9 Q% [0 P5 ^+ [" Q A2 f3 dset color blue
& ^* ], u3 k7 K ^; f( zend
0 P; L0 N6 j+ S. A8 K/ Z- n( G
' k) G' R2 n! E8 Hto poll-class
" [9 d- Z) }9 P" ]8 y' \0 X8 Fend" D/ `( r1 u0 p
) g% w4 H: G4 a- O& {0 @+ i( K" L
to setup-plot1
5 d( V: Q! S4 k
# Q+ f4 G! L" I" Pset-current-plot "Trends-of-Local-reputation"' R; _3 t- ?7 R- P1 `# k
# T2 K% j( A9 M) l; O7 sset-plot-x-range 0 xmax
: Y' E2 E# k3 ^" i# i, u, U$ f( f- m$ f! R9 x
set-plot-y-range 0.0 ymax( N! Y* j2 {* L! \
end
- Y* ^. m4 B/ O
5 x# C; Q& d7 S* U, _to setup-plot2+ P. C2 A7 m& T9 I' `
( `/ Z6 X. q |2 ?2 A! o! P1 [
set-current-plot "Trends-of-global-reputation"
$ g7 d1 e6 v* ~# y! _ X4 p% d9 t; B. i8 R
set-plot-x-range 0 xmax
8 L9 Y9 v/ W3 ]8 R" S& y2 c
$ P2 r* l: {) a4 k" A( T& L" fset-plot-y-range 0.0 ymax
3 H& ~- P1 `7 T4 z1 _: p1 x1 mend4 K6 |3 L( b; ` P6 v: A6 n( D
5 C; s9 }3 t" F8 S, [' S$ Y0 Y/ ?) [
to setup-plot3
. t2 F, U# B/ B+ A# u( O
% J$ {/ `" p3 x8 Dset-current-plot "Trends-of-credibility") q9 I7 C7 A7 g2 ]' k# x# a) a
; n# C: j; ~3 Y. H" rset-plot-x-range 0 xmax
4 e6 u8 K1 _ T
' ~' S' q4 ^# }, t3 O& Y9 A; vset-plot-y-range 0.0 ymax
& D# n8 L2 B1 A, k2 j! f# V- |/ F. Dend: w0 K$ ]1 {0 A9 t! W/ x- p
4 D- x9 ~/ Y; ~" u6 t& H
to do-plots
7 R( a; `+ J# jset-current-plot "Trends-of-Local-reputation", C' \3 e1 U/ d( X4 ?$ }
set-current-plot-pen "Honest service"/ D$ J G% A& `! f2 W3 w, p& ~5 V# b
end! I c" C5 l- I
1 ~0 }3 C: j( X# S; v2 Z2 @[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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