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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 O# |& E4 l6 ?7 y' o; [
globals[
4 ]: k% k5 Y0 o& O" w1 O" z' r2 Hxmax X) ]6 L+ e. ^9 p; `8 k
ymax: R5 P2 I' d; y
global-reputation-list
3 W7 p# U) }4 g- @( h: B" g$ M6 c/ B. |: v
;;每一个turtle的全局声誉都存在此LIST中
: C/ q9 e0 u8 Z# Q- P" m1 ycredibility-list
, p# `2 J4 ]$ n* N k/ J;;每一个turtle的评价可信度
: Q9 Y# U; J: Ghonest-service J% K& }6 C6 R2 J$ x( ^" I4 `4 w- M% {
unhonest-service% M. }; {: E- _& F
oscillation
% B( s. o0 w$ Z% \. Lrand-dynamic) k, S3 Q. I$ ^- V
]
% |2 R; [9 @# K: u: a; M
6 [$ {: O6 q& x) ^ R6 nturtles-own[
7 y. \8 K z _trade-record-all/ ~/ n5 k1 p0 C) h
;;a list of lists,由trade-record-one组成
, x: l* J4 a; }7 ]2 [* n1 V& \. Htrade-record-one
/ U1 M6 Z# d. T0 O! A;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# p/ g2 N; L5 B3 H+ J$ {
1 m. r, ?0 x3 G9 x;;[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 b* L6 ^6 O2 i4 P& @
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]$ A2 ]; k0 h$ B, r
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
# P. H: L3 {, @: e" e0 r/ Wneighbor-total2 q1 t) E6 `, |9 \
;;记录该turtle的邻居节点的数目! Q% m7 s9 H# [' A B
trade-time, E9 M# x: n3 @& L$ J+ }7 a
;;当前发生交易的turtle的交易时间
% L0 B3 P$ B' w. ` Pappraise-give8 Y; S4 J, Y( ^1 e6 ]
;;当前发生交易时给出的评价
) Q _. c7 I6 B$ `% Happraise-receive4 B0 t) L6 k3 J0 k& H
;;当前发生交易时收到的评价: k+ H1 w+ w* x8 i
appraise-time( H8 F7 ^; ?; t1 o
;;当前发生交易时的评价时间
3 `7 \' A* k; |6 I& f9 glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 U# O, @/ }; z3 \' ytrade-times-total3 E; R# m1 H, |# [, |, i
;;与当前turtle的交易总次数 \$ o9 C+ K$ g# P. k' n
trade-money-total2 ?' F$ b' R- Z3 B8 `& A3 k
;;与当前turtle的交易总金额! @: L# n$ f0 V: \9 h& h" u, r
local-reputation8 _2 B$ q5 {% p# Z3 A3 [) g
global-reputation+ c' ? E6 f7 A
credibility
7 y8 c% _$ c0 i1 ^;;评价可信度,每次交易后都需要更新
# X- G6 t+ P$ G$ G3 Jcredibility-all' \, o" ^% S9 V$ }6 |0 o) A
;;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 I6 v" q. y1 A& W* b
h2 V% j( e/ v! S \: c* Z' F
;;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 ^5 x6 K8 i. y# y
credibility-one
1 i0 B% C7 M: g: ~6 i, 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
! P0 _8 T: _2 x ?% [" Zglobal-proportion
0 q3 O4 l1 O5 J0 ]/ O. [4 x3 J0 @3 zcustomer
) r* \$ X; I5 w* j# Y6 ]$ {. ? ycustomer-no9 L2 K" F e: d5 b, F* g8 r
trust-ok
: a6 N+ R% ]$ q, u# j; J3 P5 |trade-record-one-len;;trade-record-one的长度) |; r6 `2 @" `+ L3 U
]
* V+ P! X0 ~* y# K/ ]: W& S) E, L* ^
;;setup procedure9 w5 Q) F6 n5 Z9 B" q! }' a/ u
& d' ^; b) v% R' P
to setup
1 c; a/ w! o+ {- I- h/ Z0 r o7 n+ A T& X; r5 o1 j/ ~
ca( j3 X v* s2 c9 x0 @3 c
. H1 r! P2 \9 H: Iinitialize-settings/ B( L: r: [& k% S. L( S2 b2 S
* E, p( i8 D0 [* C$ W" o
crt people [setup-turtles]! w3 ?0 f4 c+ s+ e0 Z4 e
+ Z4 T) v* S1 ]! preset-timer
; \ p, w: Z+ j) L. g. e- ?) p& f* x% I# G: r. a
poll-class
. t, S" l: I; u7 i2 ~! x- q# Y. N- }0 I' Y
setup-plots
" F% d) D! x3 g8 y
* Z6 b7 D$ r% S( ddo-plots6 C O# e; R+ D$ a! t
end
( ~+ Q8 F& j/ S3 q- Q* e/ y' }
n, d, C' [, b1 t3 n' Wto initialize-settings
% l6 X$ D4 Q: v# f4 i0 n) J
( V* ?4 K T* q5 J; i5 gset global-reputation-list []. R$ {- i( R( J! h4 {0 O
$ _/ g5 Q4 m" B2 k4 D* Y* G1 r
set credibility-list n-values people [0.5]
3 k4 ^7 N n+ }6 b$ e4 a
' F5 L" n1 s7 T' W$ n' B1 Dset honest-service 02 t' K$ k. O. t2 s$ @2 T) r; y
2 q7 x. N+ v1 Z( q* f- Dset unhonest-service 0
r l" x5 i% u1 E0 |% ~9 j
* f) L( i- s. b# L, s/ qset oscillation 0) k) C* T3 r9 O ?
5 \5 M' w" _( |3 Cset rand-dynamic 0
. o; ~( h( O3 m+ B# d" {end+ W# |* y6 ]( X; g+ f
# l! h+ N: |# U9 ]/ a3 dto setup-turtles . ~+ E4 m# R2 o+ J8 t3 h) r
set shape "person"# G, r3 q3 I7 r( T% w8 Z
setxy random-xcor random-ycor+ Z6 \$ d# Y* J
set trade-record-one []
8 a, o) T9 Z/ H
) I5 ?: s5 d8 n3 \7 ^& ^set trade-record-all n-values people [(list (? + 1) 0 0)]
5 z9 x' a' W; Z3 ` {% \" b& V
( K4 k8 g, @( R0 dset trade-record-current []3 v: l9 w1 T. H* B# ^; c, ^
set credibility-receive []
Q8 p( d! D# x8 aset local-reputation 0.5, V5 J Q* h! Q3 H/ v9 s" K* _4 {
set neighbor-total 0
5 f' [5 C1 |9 A/ z: Aset trade-times-total 0
8 R* ?7 b- E4 t; U- _9 oset trade-money-total 0; ]' A V+ l8 N2 N4 s. b
set customer nobody" N7 U% Q H9 f1 l
set credibility-all n-values people [creat-credibility]
5 v) c6 Z6 U8 i. Z/ Pset credibility n-values people [-1]0 M$ a- ?8 x9 @1 u) F; o
get-color
% I; @/ d, y) M* y& ?3 X5 c% X+ z- f* Y ~* f3 i& C/ w% D6 x
end* b" L. g1 w& L4 x& [& X" q2 R7 f3 [
8 m# S2 R9 @1 C X; n6 q! Qto-report creat-credibility
, D; d- ^1 E! g# t, [+ |2 Xreport n-values people [0.5]0 p- J) W- v+ v; }4 E
end4 n; a! S O5 Z8 I
' `( t! h# [! V5 q0 R y" ^
to setup-plots
! Y& }8 R. ^/ h# G% k
5 l8 X+ C& v! G- Xset xmax 30' l4 B6 G: C) K1 G# e/ @: w1 p
) q& \3 H* o1 kset ymax 1.0
+ {7 n2 y" p1 T; a2 S P4 ^; E$ w& H! ?& o$ e( f
clear-all-plots
+ r% A7 C0 W5 q6 v
9 Y2 v! Q& t9 _, ~2 ssetup-plot1
]$ ^0 s( N$ h' ?; ?8 i9 ]# ]# l+ J6 J! m: {0 v3 s/ F: M9 j
setup-plot22 \# s6 H+ n! e, C
% r+ }0 i# t$ q- wsetup-plot3
, ?' C; {* V$ o6 T' T9 m4 f! gend6 {- K0 F5 r, _
$ Y: T/ F6 [1 X0 U% M;;run time procedures+ Z, G p/ Q* [0 M9 p
' |/ y2 A8 V6 ]9 y
to go
0 m8 l7 {2 n g: V( C4 X1 C7 K; h+ N5 V+ }/ B% n, g3 M" F# o6 C! b
ask turtles [do-business]/ ~0 p: ?: o5 f. ]% g, n, b, _7 M
end* h# l6 F# t1 x9 g `5 Z' |2 [
; [" `4 A! t( `2 Kto do-business
0 ~# g) ~0 P+ v- t2 f6 J0 l: \+ f# W3 b4 a5 o
3 d7 m) q& p+ I+ q5 e
rt random 360
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fd 1/ b( ^( y; `& h9 S8 q- L6 u
. T& a4 `2 C3 G+ e& ^$ D
ifelse(other turtles-here != nobody)[
# _9 m1 X! L& {" }9 `4 Q- l7 m- n% \& w# e3 a
set customer one-of other turtles-here
% t8 _: _9 t J! {; R
3 `% i. `5 `, f' j;; set [customer] of customer myself9 K6 a) P- M2 Z$ K6 }( c: O. ]% `& b
6 ^7 o6 I3 U& ~, J9 H9 t2 }
set [trade-record-one] of self item (([who] of customer) - 1)
) d, z6 Q8 C9 M7 W[trade-record-all]of self
1 ?7 H- e% r! a" B, R$ O c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. Z* m4 b' g& h6 D. [6 {& f" ? ]5 w! `- c
set [trade-record-one] of customer item (([who] of self) - 1)
( |, w8 ]9 ?* @5 R" C[trade-record-all]of customer
5 b- u" V- [* m% @$ M; I# P: g' y+ n% [8 V& I
set [trade-record-one-len] of self length [trade-record-one] of self' f5 P/ p; a+ H) Y7 l
$ N+ s5 n5 f. o% X- Z
set trade-record-current( list (timer) (random money-upper-limit))) I* n3 E) }9 }5 ~
9 B- i# {8 |6 c) k1 X
ask self [do-trust]
@0 M& P5 H* H. S;;先求i对j的信任度
0 m0 Q, t7 ^& i8 L7 ]! A8 }1 i$ V3 N% h$ U! q. ^/ f4 s( h! B; z
if ([trust-ok] of self)
7 L3 D2 B+ E o" M2 T+ G! Y" T;;根据i对j的信任度来决定是否与j进行交易[( Y2 ?3 T. K, N f
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
' i/ _0 ^) G1 C, b6 e2 z/ w# W8 K
[7 h4 z! i, s" P
3 w) u- N# O9 z8 }( R6 R! J7 X3 T
do-trade
* w! g y4 b" ~/ k5 q- E# ?: M& m8 Y/ l7 y+ F1 O6 W
update-credibility-ijl
/ r, T( |5 u- A; y( @: j! {
, z R2 s+ S# @5 `# hupdate-credibility-list" }% @8 r+ ?. |0 T7 W# j! | l7 k9 R2 D
4 g e7 S. l- ^+ i$ n) f2 X H- {( W. X0 B8 ^7 l$ e5 c/ d9 ?
update-global-reputation-list0 c6 `/ J1 j3 P6 ~# N: N
6 _* q( ^" N% h2 m; ?! ~
poll-class! N# a X5 ~9 ]( A) K& u
; Z' u: L' V- m
get-color
" M( M7 g& k# |& t' ]! Q- W7 \3 V. K, K A, Z* {
]]
5 B; l. R; p) S7 s1 @( k2 V0 d9 M* @. R$ c; W/ j
;;如果所得的信任度满足条件,则进行交易
5 A; ~$ y/ E; z# f9 h% s2 a
1 N2 K+ Q, |) O' I9 a[, k# b$ \. L, k6 y: @
& Q* i" R0 @, o \5 Prt random 360
2 a( Q1 A/ Z, G) Z) w a4 f, w ^! ^& v
fd 13 ^ c5 t! T1 @6 k
: ~4 p" K% i h8 P6 k
], _; Y, S7 J0 G1 V) O9 v/ A
( t$ T, X0 s' X' M: w8 _4 O! j
end/ P4 F5 s) F0 A- `
2 h" [" Q7 h& A2 R+ wto do-trust 2 {' A% z0 P' {2 j& D; `
set trust-ok False
. ^+ ] H* y; W3 Q) `7 C2 w/ k% E+ ~1 H, e7 I2 U& V
1 q8 V a) }2 glet max-trade-times 01 k1 t" W/ I" P- G8 p. u. t
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ w- @7 v+ d! O% _3 blet max-trade-money 06 y4 {: M+ K4 _# m, ~
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 f6 F Q+ L6 M# p1 x! H, R0 Qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& b' s, U# E# I4 a5 ~- G5 |
4 u) G# d( \9 e8 v8 o- y& ]5 i; h
' T1 ]# E% G4 a6 G+ y* X
get-global-proportion
6 F0 g0 U! I$ U: M6 Klet trust-value
, L s6 D. s; Q' i: A7 ]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)
( k$ U+ L3 X; R4 A: K5 X5 Gif(trust-value > trade-trust-value)
6 z7 g% j4 Z# r6 Y* M! n2 v# [[set trust-ok true]0 q" P2 G3 t) D# x% w* v1 z6 d; C
end
/ ?( H. l1 r! w+ e) V5 g. |9 J3 L, P4 \% R
to get-global-proportion1 P4 G, Z3 a. f' _, [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 Y# X4 |0 \2 ~3 L, }0 x[set global-proportion 0]- p; @# V0 H# a& g( x
[let i 01 k. o/ n) d* x* B0 h" g
let sum-money 06 q) P' @3 `* p3 r0 W2 n. L
while[ i < people]
/ p( d, h6 d3 r3 ~[
# ^9 c6 c* o& t4 ~1 F! w0 @if( length (item i: I5 d! Q6 L+ U6 M/ W0 V* c5 W
[trade-record-all] of customer) > 3 )
% D/ }! G4 e1 M% O7 ]9 z7 y[
; o ]+ h3 G( {set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 m4 z4 C6 g' G) q4 C/ v, ?]
' U3 _" D9 N* o: t/ @]2 X- R+ }) o5 @) I& u# M
let j 0" ]4 f/ E& X" p6 v: J- P
let note 05 k6 D9 n0 ?1 n& _: ^, W* |- W
while[ j < people]* |, a! ~ z9 ?" G$ r% H2 D
[
$ [0 J$ U4 }' E! Eif( length (item i" l1 J" w9 C0 n$ h3 s' T
[trade-record-all] of customer) > 3 )1 L7 G$ [0 Z$ \! X: P6 v3 b9 X5 @
[
; X6 @3 e+ ^% N! h2 kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 J* F+ X' j6 c+ S
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& U1 k0 O/ h5 B2 w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; j7 f( j; |7 W* [/ X! {
]2 B+ y, p1 e5 A$ W) @) B' W
]7 O" h4 p7 h4 q# C" B' h, c. ?
set global-proportion note
6 `+ @- c% v; ~+ g]9 v% `8 a3 F' M* W' l/ a5 L5 v! ?
end
x; y) x% {2 e( c6 `5 S1 _& ?) u, w
to do-trade1 \! S& }. N' [& J) T0 C
;;这个过程实际上是给双方作出评价的过程
7 C5 p: M( _; S6 a ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 k6 a' H" N+ X2 O3 d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价0 E7 V. U+ `% f% V# q% h# v
set trade-record-current lput(timer) trade-record-current
k! \& X5 W; ?) M;;评价时间# i/ O+ J% G2 A6 S, O7 A7 w
ask myself [
8 i* l2 w) b- C$ ]6 h: t: n: Rupdate-local-reputation
0 D! P; E! Y& e% V/ t5 bset trade-record-current lput([local-reputation] of myself) trade-record-current8 @: q. I, C( x% N: D( ^
]2 K5 s" Q4 w- Q; F* A. _: T
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' i7 @! R4 b2 O& S" y8 m;;将此次交易的记录加入到trade-record-one中# x! ~8 G8 l2 c8 h9 L% J4 Y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ O, n h# Y3 f) c4 rlet note (item 2 trade-record-current )5 C ^5 D' l0 f/ l, N4 Q+ K8 c
set trade-record-current
: P% D- _, ?3 ~$ [, V# W4 t5 i(replace-item 2 trade-record-current (item 3 trade-record-current))( `4 T' ^! o4 `% a
set trade-record-current4 R- l. R7 B9 d3 Q
(replace-item 3 trade-record-current note)8 v6 V" z7 p# A+ V' \# N
; K% \1 _ W1 \) r" F9 {. l
2 O1 o4 \# @/ y, e3 B) h5 W4 ~
ask customer [% ]7 W* E$ @: L1 Y, J
update-local-reputation& D: K8 j# T q7 I% z; b- M
set trade-record-current
0 [4 ]& |+ \9 S1 u" L! H# K(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% f2 z/ T! h4 R]3 D$ R) @7 Z) z6 q S b/ E+ Y
; a% \0 I6 p0 G; @! N, G+ ?3 G
) v8 R7 G t' ?: d% w' xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 w$ M- m" E. w* p7 t8 e6 f, @0 q2 @& B3 i" U( P3 ]
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& R% G" X/ f+ g1 ^- d5 d
;;将此次交易的记录加入到customer的trade-record-all中
6 {0 D9 `0 Y* x7 pend
_0 R0 c W1 e+ W5 D' v3 V7 Q! @! S- Q+ r6 A; Y; J& O
to update-local-reputation
1 ?* `- a; W( `set [trade-record-one-len] of myself length [trade-record-one] of myself
/ p, V4 _7 [0 u! _
. Z0 \' P7 Y6 o* V, q
* c& i Y. i" w' \;;if [trade-record-one-len] of myself > 3
8 x1 U, p* t% l+ i7 B+ S: g& Pupdate-neighbor-total: o, v, e+ U) W5 L4 _ ^
;;更新邻居节点的数目,在此进行
4 {. I, T \$ K- s a& G+ }let i 3
# y$ o4 |2 F6 V+ d4 U3 Glet sum-time 0
; {% E) I' Y$ K1 x2 T8 ^while[i < [trade-record-one-len] of myself]
^3 o% R/ n5 t- _1 t& A E[
% T$ ~( B% g) m, xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 l2 v+ H W' }; Q- t4 p
set i
+ p* [3 m" W3 [. F# L( i + 1)/ d3 U; d2 Y* k7 e0 R9 p: }
]
9 e( A5 B( s& d8 olet j 3
: u5 s( K% v, e8 Zlet sum-money 0( x, c. t* i/ d- E5 N! d
while[j < [trade-record-one-len] of myself]
) e9 V" N8 f8 P; Z$ [. F[9 c- r; u# `* R/ _
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)
/ `- h5 W' a1 B3 o" k7 |! Z/ t1 ]( zset j
; P* d5 g+ `1 T0 {) B( j + 1)$ [8 n3 _- z! c0 {) H
]
, v- j+ B1 U( W& r" q/ h) y. M/ @let k 3$ c \: x/ w, s: z& G
let power 0% D& n4 M9 o: x5 r. {8 V
let local 0
7 T2 V- x: m$ Y+ Gwhile [k <[trade-record-one-len] of myself]& y7 \; F# ^& l0 q4 h
[) h' [' K; o+ h! F0 @0 f a0 U
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)
- y# d/ J! e% ]( v1 R+ z4 wset k (k + 1)
& N0 ]8 G t4 J: t: _]
" @: v+ [! s1 v" m5 zset [local-reputation] of myself (local)
& k; L$ f; w% I" Q* e0 ^0 V9 f% w3 eend B. f1 D2 L: D% o$ T
, F+ F( k z' G! gto update-neighbor-total
% O6 s! i3 e" d z
6 y L" O$ \# C8 h# Mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ ~, k5 h; m4 }* L+ T
$ X1 J' V0 z/ ]8 K
/ k$ Q# A N( [7 x# p, ~ h) k, g
end
% |# v% a1 X" [, r8 H' |$ |; E7 u4 l, O- M8 I7 k: ~
to update-credibility-ijl 4 u& u/ p7 g8 _% |$ m; a
' f+ h( s( I% U6 p$ X, G;;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。' p. B6 U3 z$ e+ @; v& {- S' J& b2 d: j
let l 0
7 `, r0 ~3 u9 L: bwhile[ l < people ]
" G$ {, r; z! I/ t4 x+ ^9 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/ M8 L6 ], l$ Q* Q) ?
[
8 r/ i% Y6 k3 N+ } U8 c% R, n: xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: m9 f7 ~5 @4 V8 o/ z$ A+ Q) Bif (trade-record-one-j-l-len > 3)
: m6 S1 K* U; c- y. B3 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
. \% d1 L6 L) v9 b, I& q5 Olet i 37 K, P* ?9 ~* b% h0 ~
let sum-time 0* t. q7 i( a) t9 F3 t2 \1 }# ^
while[i < trade-record-one-len]
8 h( a+ v5 l( p[
% d2 q ^. o( G( Eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 p# ?+ E. ~5 Y) D
set i9 u. L! q8 C3 L1 I) Z9 F( n6 f) Y0 i# n
( i + 1) \7 q5 H$ C' t- ]
]+ I* Z) G8 s, n3 Y/ Z
let credibility-i-j-l 0
, ]) H5 K. a: U3 E$ ?* _& W;;i评价(j对jl的评价)2 Q( O, h) Z1 Q- A3 n; F- b
let j 3
# _; H J( K8 X/ n0 M" j( Elet k 4
* B2 E) M9 [; R* h) Jwhile[j < trade-record-one-len]$ a2 _. w" }4 l7 P. d; {" B
[
u2 o" @+ }3 p; Nwhile [((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
+ m1 i: N* L' V6 C# iset 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)
' P5 M( [8 ?- g5 M9 dset j
7 i" e/ U- R3 @6 `( j + 1)
1 V# v) l B5 M1 e# z4 n- L9 {7 V]
) I+ i- X- N& Lset [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 ))8 O, `9 Z) y. D; ]; c9 A* A7 _
% |9 U) h2 V3 f
( m* W4 j) d$ t6 @7 [let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 s' `/ z5 O# `- D B5 d {/ m- o
;;及时更新i对l的评价质量的评价
. d! d9 F0 Q( K- n5 ~set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 B" k( }4 c7 R* p0 A3 l @set l (l + 1)9 t, Z# v: f' _2 F+ v
]
. C+ K7 T; J4 Y3 P+ Y3 d' ?" Uend
1 G( E% q9 {3 B- R K4 i) c
8 L9 {' [7 n0 d5 \to update-credibility-list/ T7 }: [; C! t
let i 0 \0 ?4 {1 V2 N; v
while[i < people]
% s( x/ t6 B# M0 F4 l$ @9 J[) H' g8 F J6 G+ t% S( Q1 F- j! @
let j 0
) w3 n+ G9 W6 b2 vlet note 0
6 S/ i4 t1 p3 g- F( S1 Klet k 0
! t$ j/ Q W) g;;计作出过评价的邻居节点的数目
" @+ ~* V# J# d8 Q! hwhile[j < people]
# n8 D# ]/ Z- x$ W3 j7 A7 L9 N[! [# u4 q9 S0 U& C: z/ N1 w5 u0 n
if (item j( [credibility] of turtle (i + 1)) != -1)0 W% `6 `' f4 v$ B7 {/ j
;;判断是否给本turtle的评价质量做出过评价的节点% I- l5 V* w4 _) k i) u" R( o
[set note (note + item j ([credibility]of turtle (i + 1))) ?) q5 M) [4 L/ z
;;*(exp (-(people - 2)))/(people - 2))]
T0 [7 d t! c I J$ iset k (k + 1)
9 y9 ?/ g: H" D& i, ~]
3 A7 k, ^4 T% y2 P3 Q2 ~$ v1 @9 Iset j (j + 1)
; r- t4 }$ x3 E% A( `4 C! r) q( ]4 ?3 F" C9 H]
& r: m! S* X5 A! S/ d* y3 b, p. I) vset note (note *(exp (- (1 / k)))/ k)0 O6 D l: l9 F: H7 @8 g
set credibility-list (replace-item i credibility-list note)
+ J j6 ?. P4 ~. N7 n: g' }- Zset i (i + 1)
# O5 Q% u! E7 d$ E8 W]; Q! _4 x9 D: X" H7 {/ O% N* x3 H
end
& D* w% L7 R- O! N" O: F4 w( R' F @% n5 D+ m5 R+ }
to update-global-reputation-list3 U( C* ?6 H/ g. h
let j 09 B! e* L4 |# F% M! M t
while[j < people]
8 G2 b5 Y9 \' _/ c% I; ^[, Y8 g: [: o: i1 F
let new 08 f2 E5 U! @' {' o' ]# L% c
;;暂存新的一个全局声誉* {& ]# X E; K" s: R6 d5 E
let i 0
- k7 q% n, |6 g# S7 }4 |% G) Xlet sum-money 0& R6 [. e M* T1 d) f
let credibility-money 0' i" H7 I1 A/ [2 Y- E
while [i < people]
) q" L5 S" \9 d( z: y[
# Z+ b/ D4 r9 a# i/ Sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" \, F8 d& r0 { n9 @3 Fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ S1 z* e6 ~+ ?$ m! M4 Pset i (i + 1)
& Z* h0 b& H4 e- x+ u! I1 Y] E0 ~" c# O3 @/ {9 q5 J
let k 0
5 r9 p% K' W" J) m* l8 Ylet new1 0. M3 |( t; C# Y
while [k < people]
0 ]; a1 ^" L. z4 d& `! ^; d[
1 i# [) o) O i& Jset 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)
3 x& O+ L5 |3 C/ G) Y+ Rset k (k + 1)
& H# v# z; ?7 L+ W]
4 s5 b9 j8 n7 f. R: ~2 Z/ g5 fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- {# b2 b+ y; j, N: M( U3 l9 ]& X7 dset global-reputation-list (replace-item j global-reputation-list new); f* D/ X, q" ]2 a! @
set j (j + 1); e; {5 h2 B; f6 K* {3 e- h5 a
]
/ C- e/ @1 e$ y4 s2 ^- Vend
1 t" D- J- s8 N; t3 ]! _/ r: K @& ~% X1 n$ e- F5 X
$ y" W' {3 m, m R D2 C* H
! D& z+ h! @4 }to get-color4 @. o; _0 `4 S ]4 l) v( i; y/ K
/ H2 r- Z/ ^# b K7 {. Wset color blue! p7 c7 U, w/ ^$ d# y$ e- a
end3 u- N. r1 T5 n* m6 {
$ ?; U, V; h4 P- W" G; L7 N7 L* Q
to poll-class( Q2 U/ U; m, x9 P
end
) \% p o: \% U; O/ D2 I
$ L; {9 b( [1 D' [1 D/ `8 jto setup-plot1
& [: S+ v% u+ ^$ P2 L0 a# \7 H2 d$ l8 v5 w2 }! X0 M
set-current-plot "Trends-of-Local-reputation"- K$ M1 _7 }, ]" {
9 o. x& a' U: f# y4 ?set-plot-x-range 0 xmax
n& h% ?$ `: E* ]& N2 D' g7 ~- ]5 L) v
4 h& ^. o8 K E% Rset-plot-y-range 0.0 ymax
: V, L4 Q, v$ G3 E N6 C) P7 P; Send
1 Z. z1 H9 J* M; G8 b" o+ w$ u O# x9 B& `0 \& x
to setup-plot2! X7 t) k$ H% }% S" L
; t& R# s/ ^8 l( i$ aset-current-plot "Trends-of-global-reputation"' J4 b) A* I) j
! M9 M G f' ~( yset-plot-x-range 0 xmax; ]( v$ ~( C) T/ C
2 I8 _$ X- u$ P, P
set-plot-y-range 0.0 ymax* D( _* |) I0 w; b9 |9 C7 c( i/ }
end' B3 x5 Z, J9 @' n( z/ l
" ?( J4 D) U0 k- Y9 f U
to setup-plot3* D9 b5 s* w: E \( q+ i' b
5 b b X* g, B+ ^
set-current-plot "Trends-of-credibility"
6 b+ L+ Y, ~& v' l/ D, G C
8 W/ W" A1 A5 P& r( G( B3 b% W/ Iset-plot-x-range 0 xmax5 r2 t, l# z: R H
) J" |, g5 u* g9 w) f$ \
set-plot-y-range 0.0 ymax
" N' W8 x: E- j4 wend
8 H( v8 p& K k. d q( F; j7 m3 P1 X! b1 c) [; p
to do-plots
/ q' `( v( C: G/ w+ Fset-current-plot "Trends-of-Local-reputation"( ^9 [9 c/ p$ m! t( L
set-current-plot-pen "Honest service"
9 n, n7 w0 H2 t. uend
% x( Z5 l0 r4 \! D
7 y7 A/ e* n! Y" t[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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