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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( `; ]$ _3 F, q
globals[6 }% _) y% S5 v. p6 F( `
xmax
# c2 _& D3 f, F- Gymax
) q$ v% r- x$ P5 ?: B6 zglobal-reputation-list
! z( l4 S# ^, F. E V5 d1 x5 X) _) t1 F$ }2 H- Q& U$ v
;;每一个turtle的全局声誉都存在此LIST中
# {* c5 N- E# Z$ {credibility-list
9 E4 r9 |7 D7 ]) R7 t;;每一个turtle的评价可信度
8 z0 U9 O/ v4 ?* shonest-service. V k# n9 s$ q
unhonest-service
" u, X [1 y4 I k( N5 s9 D! foscillation5 Y7 z# k( O9 |
rand-dynamic
# A) ?- J; t$ K% j* v5 F( {7 d5 a]
* I# Y' p4 z, Q9 q9 \1 P3 i, v- ]5 h7 k2 Y- i
turtles-own[
) t$ L) d7 v9 G3 U5 Vtrade-record-all$ _; h$ [8 Q/ p4 K
;;a list of lists,由trade-record-one组成8 M D' h% i: Q' d+ ?" a
trade-record-one3 t6 _7 Q% [1 f0 W, z; [, F! S2 `2 D
;;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 d) R0 x f9 I* y
4 D3 z- C! x- F! K* U+ g;;[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]]
6 A2 r' ^$ W' J; R2 v2 z2 t8 ltrade-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]
. F( Z( T% H& k% L# d( [7 L7 rcredibility-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 Y" B& S3 I0 f9 f% ]* i
neighbor-total4 j& {# a7 M4 r5 ]1 T
;;记录该turtle的邻居节点的数目; N% b- ?* H9 B
trade-time; \, d* l, ~; c4 P$ }- M6 O
;;当前发生交易的turtle的交易时间
0 M" ~: J/ ?+ _! o, wappraise-give
. b+ {+ `! x3 H% r4 j, b$ i+ B;;当前发生交易时给出的评价
0 t) b& v9 Y$ {1 Z/ S2 `appraise-receive
- t/ H& X$ q% P. Z$ {9 B, A& }/ G! M;;当前发生交易时收到的评价
2 W9 N, z# r- E3 W# @. e5 Fappraise-time% A! W# Y2 Y2 c
;;当前发生交易时的评价时间- y4 c; @# ? g' `' S+ v/ G# ~+ e
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( P8 r/ K- C& ~ ~" ntrade-times-total
- ~* p/ c7 Q7 p: i;;与当前turtle的交易总次数
/ {( N$ G/ |' g% @* T( {& _4 Rtrade-money-total
2 t3 d3 @6 S, a0 o' b5 q- I;;与当前turtle的交易总金额* ?9 V! C1 E" \' t; w
local-reputation' m* G1 B: S8 j2 Q8 Y, i
global-reputation, Q8 g( ^, R8 d, B6 J) w1 G
credibility8 {' y3 p/ z3 W: b8 Y& a2 |
;;评价可信度,每次交易后都需要更新+ P2 N l& E+ w% `1 n9 E
credibility-all& X B' _. o4 g$ ~7 j
;;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" {. q$ k' O4 ^$ H/ K, T% T! T t! [
$ s& N& h: n: o, N+ z! ^' Q$ D
;;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
& p$ c8 O4 ^1 Z, x' Fcredibility-one
, q1 t( p& @. ^;;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
) S; n, g5 X _$ C" w% L: n( Tglobal-proportion5 W" }) R9 R q
customer
6 o5 @ d- k+ e9 ?' ocustomer-no
* [. O* h& N, H" [3 }" s2 d+ E% ftrust-ok H3 ^8 `$ x [2 `! y- M
trade-record-one-len;;trade-record-one的长度
9 ^5 s" ]1 a9 U. L% a4 T" T5 m]3 b% G4 l7 s1 n% W# z, _* r' i0 e" z
3 \& a T! Q' R5 Y3 O/ h1 S;;setup procedure* y7 i f) H& \
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to setup; U1 j; u2 [- r& c) Q+ x
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ca( U( e$ G Q1 j+ g# o$ B
5 h& U0 v, \# q0 f! C
initialize-settings
/ H$ |+ p7 C' H% z, {3 `9 l5 J/ ~2 P' ]$ W# K! r
crt people [setup-turtles]
* F) G+ x9 `3 e J0 X! L# R. Z$ P
$ Y& H8 P# M$ w: v6 t4 @reset-timer3 j; R1 |- C* q( e
. D5 U/ S- _+ r3 v% C! wpoll-class
* c/ N5 W; F" V/ | y
, \% g0 A- F! fsetup-plots
1 ?) `( s1 \4 w( V+ b$ `
: t0 o# d6 {& \) |$ jdo-plots' Y7 z* U' N, M2 q% g: S$ l
end
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6 m- C8 d5 w) J* `6 S0 @/ O6 s [to initialize-settings' I2 A! H" l" w: Z' c4 O
& I$ s' B" P* W1 H, y. x) aset global-reputation-list []! f3 h. x k; q
4 J" S) k3 O% y% M6 d
set credibility-list n-values people [0.5]
& Y1 X, }4 c: ^; [' f0 L: v- X: `5 H2 T
set honest-service 0
( O; B2 A/ X. c% }( i
* A- s+ v( u# v# Nset unhonest-service 0
: q' q j u% v9 S
h. p: T- T* ?' e, l5 Sset oscillation 0 l) X$ w, ^ b X; ?: K0 L
2 _5 \! H" u% @. g7 gset rand-dynamic 0
, x' B6 V+ I: R, k* y- \# {' kend2 e! {, e4 S" u1 [
& K2 P4 P: `' b1 h* r9 @ Ito setup-turtles
1 X- x* B- J) ~# t: z" mset shape "person"
" ~; y( V: m% W6 b I6 ^setxy random-xcor random-ycor' ?7 ~, C! ^# {" r
set trade-record-one []# h2 n7 i9 K- z4 |! B% @* q
, c- y" |% ]1 Q! S* o
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 ~# i! s8 {. I, B
5 Z2 O, E( ?: Vset trade-record-current []7 h: E2 p" }/ t
set credibility-receive []
2 P4 o9 V8 m: B! Kset local-reputation 0.5% _9 C! U0 C7 U& k
set neighbor-total 0
w8 U4 E* Z4 W- n- X" xset trade-times-total 02 u( L0 |; F. S6 B: g
set trade-money-total 0
% i- }5 G L' W5 `: Mset customer nobody
0 T2 O8 I) V9 W. u% \set credibility-all n-values people [creat-credibility]
2 `0 _/ _+ [5 U* I' jset credibility n-values people [-1]
1 W9 ~9 i' [9 _get-color. ]. Y) Q1 m N- y- U3 [ F
* r/ H/ ] j# [: q/ A3 A2 J, z$ Jend. G0 M3 p0 e ~3 x5 q
6 j0 z+ _* b/ @5 h; n& T+ Jto-report creat-credibility+ Z* w- s2 Z4 f4 L
report n-values people [0.5]( s, Z5 v: p# M/ w6 j( D# H/ t
end9 O r( q0 a8 ^0 x
/ ]: s$ M+ O' ]; Cto setup-plots7 ~( {8 f# H+ P# R
. {# ?" {/ L" m& c" Q
set xmax 30! g; J1 J2 X, [$ ~- g
3 f5 N& J, Z9 X; _0 s \1 m+ \: l6 |2 U
set ymax 1.0
7 B0 U, p# H- N, q d/ l, } I4 ~7 X Z# i8 P! t% r
clear-all-plots
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^& D9 J! q8 e- x N% k! ]7 c" Qsetup-plot1
" J F. b b* l& @3 y! s7 B, {- `
setup-plot2: w( y3 p: i* d( S" e
! h) v2 \: x# j: @) M' A h: Tsetup-plot35 v2 F' l( N* ^6 R
end+ w6 L8 M2 I( w6 f2 _9 O# I
, y: S# z/ {+ s- `$ W6 y7 U0 w;;run time procedures5 F) u' }5 j! J8 v2 E5 f3 ~
' Z* i4 E/ C0 |1 Q1 nto go
2 g) m7 }) E! \. h1 }8 Z9 U: S h; j% F- L5 I
ask turtles [do-business]
% K m. J1 y# @8 h5 O" l9 Q1 l% C C! l; Aend i: x* I9 F& v4 H. @' ~. i g
2 o! J( @% w5 h% Nto do-business
- ]2 B3 _. t# H& v3 m" |, a# l' O0 r3 a$ ?: k' k8 Q# C
9 N3 N4 Y- r3 b0 A& V
rt random 360
5 t C) X3 J: @' M
" W s2 V1 |) u9 `fd 1
6 B" |4 `, I& D( { m# R" d/ k. [/ A! X
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
( ?# s0 ]$ T3 @
& @( [( q5 Z/ F' r5 Z% [$ C/ N;; set [customer] of customer myself
d4 ^& o: j6 S, b9 H# F& C4 l, B) }' W
set [trade-record-one] of self item (([who] of customer) - 1)9 v5 F7 ^% U% _; ?( C
[trade-record-all]of self' x% D q8 @7 _3 ]0 f h% l4 K* |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: Q% N) j6 V* }8 Q# n) m. z$ N9 j4 o1 J7 I
set [trade-record-one] of customer item (([who] of self) - 1)
; i& @" E7 ?5 k+ q. _, Y2 c[trade-record-all]of customer
/ T1 ~3 z6 c* F- P& B3 V' x9 C! a$ y4 h. a8 X; m& u3 A* M8 n
set [trade-record-one-len] of self length [trade-record-one] of self
' G# r2 d, }8 }- v' Q9 C
' u% o; @4 Q8 l, P% kset trade-record-current( list (timer) (random money-upper-limit))/ i/ B$ L$ U) ~5 G
( J7 E+ ?8 _6 i0 i1 L2 C yask self [do-trust]# @7 k, n8 I9 ~2 n) B
;;先求i对j的信任度
5 Y3 J5 T. A" r# R0 ~1 Z
! ?4 u4 X3 b; T2 y8 gif ([trust-ok] of self)( s5 a5 w- k2 F8 e H* Z# N
;;根据i对j的信任度来决定是否与j进行交易[9 F& y+ J( h+ A9 A- V4 ~" g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
, @# D0 @; F+ ?8 w* |
" }) h4 p. ~: m: I4 G, J[
9 I/ f e/ @+ m8 b4 D0 |. y4 I8 V: F, m) ~9 M, N
do-trade% O5 K2 }7 p: p+ C+ _
0 u. q! Y) _* _ Z N6 z. S
update-credibility-ijl) g' h" T: g! I: O* ^# W* [; b
9 S( O8 }6 C' Z0 Xupdate-credibility-list# Z( |+ d8 Y% S% k( A3 h. O
+ g" _/ F/ j: r$ O1 A
: ^; q: b J! M2 t7 W, g1 x& m F# wupdate-global-reputation-list
, c3 o: j6 q8 C( O; \) z+ d2 |2 D2 `: C& R
poll-class3 E% v3 U* W5 `: t5 S8 ]
2 G: D( @1 Q% r" m
get-color
7 z/ ]4 L4 c) o( N& N
* C5 u) _- H% f- {]]" s& L" U% l6 S) l) g; `
+ m+ }5 ^ R% s;;如果所得的信任度满足条件,则进行交易/ X' _2 d1 h9 k E4 @
$ B# w# Q' E: K& g! V8 Z
[8 Z8 J/ W5 l. v* v1 c7 v1 y; X
9 z+ a; R! @9 }; Hrt random 360+ h7 G+ O7 [# V
0 @' N& q9 X5 p/ {' f: ffd 1
: _6 h L4 s# \, t5 S9 k; U. M
! I6 P; y$ B W7 {]
7 M- C. g) I+ Q9 C( P9 ^5 }8 {( r) |, G2 C& o5 I
end, r3 T$ d1 q N$ C
9 r$ o$ k, g/ U( X" c8 vto do-trust
" x8 N d; `/ I7 `+ m2 M! uset trust-ok False! N2 d: L/ p& k. |6 U+ J
. h- Q& p: y8 I
4 I- m* H. h7 u& elet max-trade-times 0
4 {& F2 k$ |# ?, J- sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 _6 m7 J k/ v4 j7 [; @
let max-trade-money 0* S+ x* ] ~& V+ [
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ y) K2 B7 i; D- s0 ~let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# F* @& V" A% L: @+ K1 L9 k
2 |5 q9 p* m4 M% v1 ]' e
0 Z$ j! W* G- a0 \/ s1 i
get-global-proportion P2 z3 j @, d
let trust-value
2 u( x7 d7 { n7 R- Hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
1 s: s/ x, v+ R9 `/ e( i6 vif(trust-value > trade-trust-value)
- F8 u% s# l8 I% g. d/ l[set trust-ok true]$ `% [( F3 E8 l% F) f' k$ Y/ _
end8 D* @, Y4 `) N2 L3 ^# G* u
6 `2 p& N& ^8 z8 a- t; U! L4 Uto get-global-proportion
/ G V2 A7 T/ sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 }! t% @9 `3 r) o( B* A[set global-proportion 0]
, Z9 T* Q% C& A+ U* W[let i 0
8 r3 O, | R# _2 I; ]! u( q8 i: `let sum-money 0
7 U0 t; z, k$ K; D; w/ }9 Jwhile[ i < people]
& i) G# B4 ^/ l2 ], g[7 J3 b: X1 _3 w; O4 r3 E- c
if( length (item i
0 f7 n1 r, i o" u[trade-record-all] of customer) > 3 )7 b$ U3 d. _9 [
[, T7 M$ w' ?- ]+ i! ~
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# c) Z. i4 Y. ?0 q. c' V
]
0 F& H1 n, L+ y6 d. P]
! o r2 C5 V3 f) q, B6 Mlet j 0
: }4 U) B4 J$ b: E1 Alet note 00 Z+ F' @0 E8 v( L- t7 ^# `
while[ j < people]# _3 ]+ X8 }! O N! I: ?: c
[
" t) S; l& ], L/ e* ]+ w, Yif( length (item i
# c- @+ X" Z' [8 ?" T[trade-record-all] of customer) > 3 )
3 _" y( W k- y% W[9 ? E# O) E n7 v; f/ o7 u( s
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) h% W( t/ {, e
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: l" c+ c/ b2 x% Z8 I$ l[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; b& i( B N. \7 X" n]
8 M- G) g. c G]
9 h' _, z0 X& D' x" J2 rset global-proportion note. J9 h% R5 |: P0 [4 P& K3 n
]
9 m* k/ T$ t4 k" M; o2 cend
$ m$ t; O: @/ }! Y: f4 Y3 D& r8 d' @, M
to do-trade
/ p: ^# D& \5 p- Q) z2 h/ k: R% u;;这个过程实际上是给双方作出评价的过程
4 v& F* t3 S6 `7 `6 `7 C6 Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ Q5 J" V( g- h! ^; d, ]' Vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) U; H& \7 S, r( C0 A" ^set trade-record-current lput(timer) trade-record-current @& E7 z5 O( D$ _) h
;;评价时间: ^; W2 h5 |. P; B0 F0 C- B) |& e
ask myself [* A' B" Y' u- F6 h
update-local-reputation6 N& P' c; |. o- Q# C& a" I5 D
set trade-record-current lput([local-reputation] of myself) trade-record-current
! f8 n2 M1 B& ]. U+ d: _]
8 L; e- ~/ N5 z8 K/ V' f4 }) g2 }" ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' k% i, @" I( o6 k- ^; Z/ \$ @+ D
;;将此次交易的记录加入到trade-record-one中
% c! e- f2 E5 ~( j5 _1 Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& O) q# s( Y$ n3 ~. f' dlet note (item 2 trade-record-current ): t* Z' X) a/ v: ?2 \) j
set trade-record-current) x) f2 X7 S3 U: T
(replace-item 2 trade-record-current (item 3 trade-record-current))4 s2 J% m* G2 m$ Z
set trade-record-current7 {# F, L. T7 n8 @$ n+ m
(replace-item 3 trade-record-current note)9 `4 ]9 P2 D. N, g# x
! q: x& Y! o% V
- _7 H& |* y4 T& H( z+ D6 M! z8 mask customer [& Q: {6 t; n' G8 e6 q, N$ c
update-local-reputation
5 A7 I0 s: d4 v# ^8 Tset trade-record-current( i! C$ h, }, B6 ` H
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- `7 L/ y% `1 d& \0 o]
1 c I! I& i5 e& |" I
* n/ o- x9 m: f' j/ x. y. Z( z5 M' s3 A) E9 ^' Q' B$ c7 J0 n
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 Y$ n) \: E8 H; E( w5 D% F4 F& U# w, `" D
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 J! ?1 U$ m1 y: \5 a3 x
;;将此次交易的记录加入到customer的trade-record-all中
) i' u: p$ c9 z% R3 d4 Jend. m" \2 @# q! a
2 j4 Y* E0 R) k# hto update-local-reputation+ T# H _* g4 o6 m1 o( x1 N
set [trade-record-one-len] of myself length [trade-record-one] of myself# U& Y& B i7 D/ J9 a2 A
& p9 s5 s+ [, G h$ g
9 j6 @9 W6 P4 q% S. E, ]. a;;if [trade-record-one-len] of myself > 3
a8 B+ N- |4 a/ O. X6 Z8 K$ \' iupdate-neighbor-total
) ~: \! J- @' {9 l' I;;更新邻居节点的数目,在此进行
$ U8 w7 @, s9 o8 N$ t0 q1 ~7 O# W0 I# Olet i 3
2 T: E+ y- y2 l: F' x/ |let sum-time 0+ u% f+ Y" m; L6 e+ g9 |* @: _8 W
while[i < [trade-record-one-len] of myself]
) J: }) z+ Q. T& c3 E) F[
- O' i/ e$ U2 i6 {# t7 aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), \* w8 u% @7 w, w# r6 I! ~4 n, c( Z
set i7 M. Z& z9 a( e3 z
( i + 1)% b' D4 ^" m8 u4 C/ P( s
]
1 e0 O2 n9 O3 L) |- B5 {let j 39 n, w; I; u" J' S
let sum-money 0
$ r, f* ?& v* Qwhile[j < [trade-record-one-len] of myself]
; s# X! |5 a4 T[4 j! V& ]# L, k( p( C& S
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)# C) J2 O' J1 R, i6 |( x2 n
set j2 t' C9 d& I, W" i- A- F# B
( j + 1): R& ~' @# ?1 m( k. H0 B' R* q+ I- p" ?
]
' e9 V. D; C. R1 D* [- rlet k 3
; u4 S c8 e/ h; s0 B hlet power 0
4 [9 Q. V$ b5 [) x8 llet local 0" M1 x7 [6 F* j& o* g- Y
while [k <[trade-record-one-len] of myself], f' z& Z& h- o) L
[& J; s. w; J; s7 o9 X' i$ m& q
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) - u3 w; ], ~! y4 ]' d. T
set k (k + 1)% t7 g- i0 x, o2 b. x% j9 ]1 E/ N* N
]
* ~9 m( d; \' Qset [local-reputation] of myself (local)
% F [- ^3 ~* _4 d A: X" Fend1 K* \' } s ~$ k1 ~, b B& z
2 S6 w+ r$ W1 g" f! g
to update-neighbor-total4 P8 z% `1 H. m) F
" c% A1 K7 t {& u" h. e" y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ] D: E! V( O- m6 B& ~# {, c" i
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end
0 B. m2 ^; m- K7 u* p4 T( l' V# @# E7 Z6 S2 R
to update-credibility-ijl 4 Q6 r& [4 h) D, a' [- Z8 W
, F4 K/ i: G$ F
;;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。
% p0 w* |" n1 V9 R6 I P: Slet l 0
* m, b5 m. ~, m2 n6 G$ l; a, Fwhile[ l < people ]! X! {4 X& A. t2 C( L8 {
;;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
3 f+ h' U: h2 c3 e( d6 H6 X5 [[$ z7 y" G g' U5 k! r# n; m
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)% q. k2 N; _; @) F& B, T j3 C2 L
if (trade-record-one-j-l-len > 3)
# M. s/ I: P$ W2 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-one9 P3 G7 p% ]2 ~/ R1 [7 W7 M
let i 3
: a: Q8 h+ \ Z) T Q8 ?' ^- U# Alet sum-time 07 k3 o8 W( ]# v1 V" d& V4 w
while[i < trade-record-one-len]& d& b2 H( M' {
[
0 R# a& }7 m: t: zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( f( u4 F" e. P. ^7 yset i
3 }* n9 L. Q* l" T. h( i + 1)
' w0 z4 s9 D: k$ m' D]
7 @/ ]4 b( z- Tlet credibility-i-j-l 0
1 n! d; ^: C$ s+ R;;i评价(j对jl的评价)" K, X+ J. n5 H. Y
let j 3; q r+ G( P/ t- @# B
let k 4
$ ^6 P* {# V- u2 awhile[j < trade-record-one-len]
0 ]% X/ X2 _ u& A# y3 c& y[
) p2 d# V3 e r, [" xwhile [((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6 @/ ]$ b6 ^- n1 ^0 m
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)( P' B7 o1 g9 u C
set j$ e" l0 O7 l7 z8 a
( j + 1)' Y+ _) U# Q. J/ s
]" _! ^, s; @9 y1 \ c' x" t
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 ))0 i) q1 r# m, ]# _, h$ G
$ E. C5 e# i. p
, a- Q3 P, I9 C# y6 zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 q. x" N% w, D# S1 r0 t;;及时更新i对l的评价质量的评价
+ P. d: d+ r; v. R- M; Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], ]2 D, z( l& I, t
set l (l + 1)
" b* {# S/ @: O]$ ]0 a) C6 f/ T% B# e
end- b9 S3 w3 K$ f- t: P$ B
. ^4 ~4 o8 J: r8 w' p+ A
to update-credibility-list
4 k/ `- x$ |3 }; J' n9 O$ Ilet i 0" o& N9 ?2 G0 p8 A# l
while[i < people]
4 E- z& M7 \: ]2 ~- t[1 o3 j3 \/ @: O/ r
let j 0. b& x/ G2 J a! ^6 E8 r$ i
let note 00 Y( }6 W6 s, J3 e
let k 0; E/ m3 A1 f% K8 u$ V
;;计作出过评价的邻居节点的数目, k4 h& v- ?$ S8 P9 f6 P
while[j < people]
" x/ K8 b6 m- C& ]% e6 M! {[
4 O/ {6 b- ?. A, i5 tif (item j( [credibility] of turtle (i + 1)) != -1), n3 \2 s% Y$ a9 p( ^3 U
;;判断是否给本turtle的评价质量做出过评价的节点) P" {; e. Z$ b1 ^" ~
[set note (note + item j ([credibility]of turtle (i + 1)))
! l% f+ d9 j! Z7 `3 C;;*(exp (-(people - 2)))/(people - 2))]2 v4 I1 t: J" d+ W( l$ X
set k (k + 1)( K; @7 p6 w1 n) s) I$ u3 O+ @
]
: l/ _+ `' ^& P# Y. |set j (j + 1). r& d4 l- i K$ f
]9 {' k4 h" t/ f8 d9 `" @
set note (note *(exp (- (1 / k)))/ k)
$ q$ S7 }& }+ T, |$ S3 u% sset credibility-list (replace-item i credibility-list note)# c% T$ B8 H ]4 R) U
set i (i + 1)
3 A; o4 n3 p g]8 S @& M* G7 j8 N8 }
end" C* ^7 @' ~3 ~9 I
: G; c& n' O0 J, Xto update-global-reputation-list
! }: E3 j+ C' u9 O! qlet j 03 S' J9 }* r8 w: @1 Y k
while[j < people]
" h- Z8 Q4 U' I1 e2 Q4 U5 Y/ `[
: \1 X' w- j& ~& l& q% a$ l jlet new 0. N9 o5 g8 F5 G+ j+ F7 b
;;暂存新的一个全局声誉
9 H" d0 U5 `# A5 x6 r) E7 h5 K6 Elet i 0( }# Q7 E, U z- n$ _2 A
let sum-money 0/ E* b9 T1 l: P/ f8 I) ~7 n( U+ F
let credibility-money 0
+ D) h1 M- F1 e9 ywhile [i < people]
( G- M r5 M5 P4 I- j- F[4 x, s* |4 U+ a+ p, l
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! n% N: t9 M, p- }0 C
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! e: W2 k+ y& Y
set i (i + 1); s. I1 ]3 R: ?4 i
]- H+ r) K( h9 y2 Z" k
let k 03 F0 J8 L9 g* [
let new1 0
' z/ q+ }/ H, ]. W5 s8 Lwhile [k < people]* i0 u. @" o' A" I& {' S. f
[3 z/ r+ K: a5 Z$ \ h& 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)
; ~+ r( h, _; Y$ _" N7 bset k (k + 1)
* c+ _* b! V M7 D- t% N1 ^]& j+ L# a7 M8 o4 i6 V7 T
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( c, G5 I* O& d7 G- Dset global-reputation-list (replace-item j global-reputation-list new)
F+ A4 i- p( l$ Eset j (j + 1)7 r" i4 C% K: J, s& G4 {
]3 S9 U: D& }! Y8 d' ]
end+ M4 P9 X: P9 m7 v: ]
3 X8 O! {, x' i' V9 S
3 e1 f& D) K4 V5 V$ v9 M/ h) x1 q0 |& m
to get-color4 F! I7 y* v( i: `) x4 i+ J
; b3 P2 A) f* K6 T/ V
set color blue
5 o7 |- S/ h& r8 Iend
6 E% ^- A0 b; `$ U6 a3 M1 ?$ Q( J, }. k' W% s( n" N/ M, R
to poll-class% O! B$ S- n6 I' N
end
{- Q( l7 G) u% }: `. e ]; B* e& v
to setup-plot1
* b. d1 e& M. N6 o' S0 C/ @9 a
: H4 C3 O2 |/ M8 N0 Iset-current-plot "Trends-of-Local-reputation"
; Y9 {; k; n8 W: n9 B. X, c0 F) {9 W$ f2 i4 m+ E" j0 z
set-plot-x-range 0 xmax
1 r8 D! p: }) j- U1 Q
7 b& P$ K w' {4 G: M: Q. Oset-plot-y-range 0.0 ymax
0 d6 T @/ Q A! Qend R# P! J; o$ _# {' {. c3 A
4 \- x( l, M' s' e8 V. d. b2 F$ l) Qto setup-plot2
4 B- @7 H- H% V9 ~. S$ \/ _
& V' i% E+ k; y( ?" ?. n, Y( L- E5 ?set-current-plot "Trends-of-global-reputation"7 P0 |. t8 P3 E& F% Z. _" u/ X
9 V( o' A p g6 S/ k" L' iset-plot-x-range 0 xmax. \* a, y5 _& o* H! P
! Z: G# D$ ]. s; l8 x" j# u/ f2 Uset-plot-y-range 0.0 ymax$ |& v7 H% U6 {# E* D" |- M5 W
end% K! E0 L3 D7 R" r
- ]/ ~1 t9 T5 ~ I+ B. C) j' [
to setup-plot3
/ k; ?6 T$ `: D% D6 S9 }+ G- E; t% F
set-current-plot "Trends-of-credibility"
# `1 L" ?# |: l. v4 d/ G; }5 ^
5 I1 I2 B! T' p8 f) f0 v9 X1 lset-plot-x-range 0 xmax& J* M- B9 K# u/ ?! w5 F
' t$ N5 [; p! k2 b1 A- Lset-plot-y-range 0.0 ymax6 ?8 q3 ^2 z$ f& C+ p' H3 v1 n
end8 }- F7 c7 C7 A E- V" ]
& b7 b# ]1 `5 l1 G/ U3 Y* U( u
to do-plots1 r; ~' H% l- `# E" g `
set-current-plot "Trends-of-Local-reputation"0 C$ o9 w5 Y2 L9 N0 g' ]; U5 V
set-current-plot-pen "Honest service": R, l. ?6 J& u% c
end
0 K* g, h! V+ P* p
+ v- V( q6 {/ U( W/ \5 X% I) F8 B[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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