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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
8 H. G7 L; H9 m8 d) jglobals[
6 U0 R8 h, `) U2 E; kxmax
& t% b9 i; `$ F% T) N1 symax" T1 G: x8 ?# A7 X
global-reputation-list* @ B2 b; |2 ?4 D2 g/ E- r3 w
- c4 o" U2 \" P8 n6 T;;每一个turtle的全局声誉都存在此LIST中
$ Q7 w' H: u0 | C9 n0 [credibility-list. J# j4 K, O0 H
;;每一个turtle的评价可信度) J% R$ {( n' g3 v
honest-service, ^+ `" P1 P4 k( w
unhonest-service: O5 f/ j2 ]8 |, w
oscillation
s5 L4 k( r1 k- s6 yrand-dynamic3 l0 v4 I: |! N, x# F% p# X
]0 F5 T( u* ~0 K n$ T
4 P i e6 d$ D H1 O, G, ]turtles-own[
2 d# F$ U$ l. p5 z8 Ntrade-record-all, L+ M3 D& l4 E% Y: V
;;a list of lists,由trade-record-one组成
( R, y0 x" Y b1 r9 r( l- Gtrade-record-one
/ t( ~8 h$ q5 y: F;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 A3 G, z, u- _: T5 ]
( a0 V: q+ R7 t
;;[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]]& c! I/ z# [% s/ @6 j
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 g( j) \3 [2 }" O) `( h, Q) jcredibility-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list6 Z8 h" v$ ?" `: e5 M% [
neighbor-total: I0 f1 }4 J! s0 P2 {& A
;;记录该turtle的邻居节点的数目/ f8 [* R7 \2 F' Q
trade-time
* b' \- u' J# q7 X, x1 Q" c;;当前发生交易的turtle的交易时间2 e; W" C6 h" C6 b& l7 n5 R
appraise-give
1 }$ E) d# ?3 Q! S;;当前发生交易时给出的评价- V) A6 Q- u8 w9 n B o
appraise-receive- f- U3 }- F3 t# `5 B* h9 |
;;当前发生交易时收到的评价
5 t6 ?( i* d& h. Tappraise-time
. {5 z& f7 u8 f+ _* L; a6 H; w;;当前发生交易时的评价时间
1 [# E0 h- ~( }4 l$ _local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 A' S* ^. {. q' g
trade-times-total2 S, F( g% B( J0 P
;;与当前turtle的交易总次数( Y: F4 ?9 \$ ~2 E$ A# K. |
trade-money-total- Z) C- S* B1 d9 v
;;与当前turtle的交易总金额
2 K9 s5 y* @ y1 `local-reputation
* I# F; ?) L# f/ j: y; |global-reputation
$ {3 n+ B" I3 Rcredibility' r& H% |* e% C( ]8 I3 e% Y+ h
;;评价可信度,每次交易后都需要更新
9 d- s. ^* Q7 \; R2 C Ocredibility-all
: p' D1 c. Y% P( p. _* Y;;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' `, p: o* a6 l4 d9 b: ?4 [# n! F
: c$ f; w3 H, ~5 o- D7 z& t;;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
. ~% I: p) Y' kcredibility-one: g' K! `8 [ a- Q; A6 I9 K! _
;;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5 a4 `: z, d* y+ X$ ~
global-proportion
; Q" R5 n2 _! v; Z# C4 }$ ^) dcustomer
& U; F8 `$ `( v* J, |' ncustomer-no
+ S1 w' I) q' [9 @0 n$ n3 Xtrust-ok
" Z7 C3 H+ G9 W- E: F: qtrade-record-one-len;;trade-record-one的长度1 Q8 V& B8 ]5 t
] t6 o# x) J. ?, C& t2 _6 S' f
3 k" B6 L1 @: K: y* l f;;setup procedure+ K7 U1 [4 F0 x0 l
9 |: m& ^4 \% Q% J7 |- Q% O( Pto setup
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8 x( u2 g) s. ~# O7 d9 Hca2 v) u' Y0 o3 K; J
7 h, ^9 y V8 t) W# k# |, {
initialize-settings* K4 X0 f2 q5 h7 G" S' P
7 O( c5 c. s" C( n3 ? C* v& u
crt people [setup-turtles]- z: `, M( y' \& s
' e" {, F1 L, Y; B. Nreset-timer" g% N, h6 T* D
6 V: L' L. J3 _poll-class/ `7 @( u$ E5 v) B5 a& \
) F/ d+ `5 {& G8 J; X( J* Y1 Usetup-plots1 ?: C0 Q9 N; s+ a3 q
9 Z* X& o ]% D9 z* M& h f
do-plots
0 l" O/ X- v& |0 [0 t) H' c3 p! uend
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to initialize-settings1 n1 u6 y4 Z5 m/ M# P Y
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set global-reputation-list []7 H5 M R0 P. C6 ]8 O
- w7 g. H- ~$ Y7 `+ P4 Jset credibility-list n-values people [0.5]2 D* S5 S+ u- M) x* e) s$ P0 g
$ h3 S ?; {9 H* A5 U$ [* ]' ^' Lset honest-service 02 n' n: x6 \7 I0 b& p9 `* q
0 j+ q @: G, j
set unhonest-service 05 J7 E0 I5 `7 q8 m( r! G
9 y' x6 W& o Y& L
set oscillation 05 s9 M6 [2 E* Z' b g, O% [8 B
3 x/ T$ S8 k7 ~+ d9 k: tset rand-dynamic 0, S# d K& X. ~* e1 u
end
5 V6 w; H& \' E7 q0 @. g! }% X8 F. `8 G* M" h' v- T
to setup-turtles
5 p6 @! x9 Y3 v2 l2 l# o+ eset shape "person". S! Z. S: p7 o$ X% T# W9 H
setxy random-xcor random-ycor
5 G6 i, J# x) D% Q, d. g* Mset trade-record-one []9 W* n7 b1 v% \ l
' d7 a) g$ x# ^) [, Q+ Vset trade-record-all n-values people [(list (? + 1) 0 0)]
/ P6 t% t% S( v! ?& M: a8 g9 k( K" w: t
set trade-record-current [], k V: h* F* Y' {; K+ w( F7 c
set credibility-receive []4 ]3 l( X7 r' h# f. _1 R
set local-reputation 0.59 V* c& y4 }3 x0 J" [% a
set neighbor-total 0
! f" O2 l b7 ?8 U2 Nset trade-times-total 0
5 |5 o6 O) X3 K3 l" y: }6 Rset trade-money-total 0
$ r6 T# l* w$ }) U( w7 n9 h5 k2 ~( Pset customer nobody
% z5 p, x! m% ~; |set credibility-all n-values people [creat-credibility]
7 z) _; o' {* Z s: w0 dset credibility n-values people [-1]2 I7 i4 O3 M# {# i$ |' }% N; ^
get-color6 Z& F: ~: s- ]* d
! i- C: u4 G! H1 `( ~/ E
end
& g; M V. O' Z+ b3 `
8 l: r- W7 K( h; F( q" ^) A! r) `to-report creat-credibility; Q$ q! f! p8 f# P
report n-values people [0.5]7 e$ [( E: Q( l, L4 B/ k+ M6 W
end
/ ^5 j1 }; n$ F8 U$ V0 G9 Y0 g! f0 I! ]- R
to setup-plots
5 n2 D0 w7 S4 X; W r# e' _. E/ |- S! Y. o# K! k5 `
set xmax 30
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set ymax 1.0
1 |4 H$ t7 o+ I; u7 g. a2 p
2 q) U/ [# b, ~, P$ w2 ?clear-all-plots
8 V3 S; U8 z+ W7 D" Z
: t) Z4 B3 ~) M. jsetup-plot1
! i+ q( d2 {! v1 f7 S4 ^$ ~7 m( ~" R; I: A- U
setup-plot21 X* V: }! U3 m
% Z8 Y/ r% b0 O/ c% {. b& Tsetup-plot39 e- x3 D' f- M5 V; @
end" u, c4 Z- Y! \2 e
/ r/ n4 a* X2 j4 K0 V( _: n: s
;;run time procedures
2 A6 g" P3 @3 o" S5 ^, w' W. K& D2 n' j. X k5 D; Y' R
to go
& z, V3 T$ U. v
- p% i9 v; A9 r0 _6 ~, u7 Fask turtles [do-business]2 L3 D/ ]$ J7 r7 [1 i( R
end
4 L- I# {# _ `! `2 O& t- w; A, {1 V% X) J" J$ j. k" U7 H) o
to do-business + Y$ X, x8 R0 o
, u* s# U( i' o- c4 ]) a I8 e; c/ W h% Y! g$ W. @% w+ O
rt random 360. P2 u( P1 g0 j6 W) E/ r0 [
) ]. T: f2 Q4 w" P+ T! V8 c
fd 1 M5 t" [! z- z( T# e
4 G* m) G5 }# A: i$ g/ w! r
ifelse(other turtles-here != nobody)[ U5 h9 g. r; w8 t3 h6 o. S9 }' o
# ^. d) d1 C" ~6 Lset customer one-of other turtles-here' e \# Y3 ]& B3 F3 D
* S# t, c3 d" b! r! ]# i" W* q T
;; set [customer] of customer myself
* D# s) e2 h) Y: {4 U/ N# b/ N- F& @
set [trade-record-one] of self item (([who] of customer) - 1)4 Z& n# B2 Z6 q3 {
[trade-record-all]of self
% r0 X4 [+ I8 `- ~$ h% z7 I( T;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 J- r/ x8 i9 W2 a; W- f2 J3 z* }. z
, I- P' a4 a! ^7 y2 j/ @
set [trade-record-one] of customer item (([who] of self) - 1)
8 E; L7 y+ X3 s ][trade-record-all]of customer
$ e- `6 f' [, O: d! z2 y3 c. R6 p) k+ J
set [trade-record-one-len] of self length [trade-record-one] of self/ p: D# _& u* p5 l' F
2 x1 F3 _& h1 p, u' v
set trade-record-current( list (timer) (random money-upper-limit))
0 g% s) a" W" v( X- D% X+ w
" \9 T4 x0 X# Q1 H6 _ask self [do-trust] u3 e: P8 Q5 q, V# W) d
;;先求i对j的信任度7 m. i) e" e* z: |, K# E
3 c3 @. f. j" i+ X& F8 X
if ([trust-ok] of self)+ w% H' y0 d/ D4 o3 y
;;根据i对j的信任度来决定是否与j进行交易[
5 n: E4 ^( W4 {1 F6 R! e/ |: N! qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( u4 t/ }2 d6 Y7 m6 y* H2 {+ M3 }+ t6 \3 P* Z, u; _
[0 M; h% a; g: ~( G
; Z, w% s/ B7 I5 I
do-trade3 X$ u9 z; @1 T0 |. z
, E! p& V$ g' R8 B: x! z; i
update-credibility-ijl' N5 f* {5 @. E
( C3 @7 F( |: i9 ~, M9 E# [2 jupdate-credibility-list! \: b" g. R" }3 f. j# k/ {* o
% |9 h# b( {9 e- g+ ~! o0 v
. S ^4 z0 g3 m& m7 A( K
update-global-reputation-list
: O8 D9 k3 |' C- @) Y6 m( i4 H% G
poll-class- p( e) t/ E) n; B: B
) M* c' K! F" S$ J0 Dget-color/ F9 I% z) @5 y1 y+ p& P r& h% p
" x% n; R( b, G1 Y5 e, }]]
# e4 x6 R; ? y, s' C* u0 _; V' B2 Z$ W+ s: R5 Y. Z1 Y9 q
;;如果所得的信任度满足条件,则进行交易
! B% M. P" y0 i; k$ S, w, e5 b; k+ ~: C3 f1 {: l8 _2 H
[- [" ?( l( H" S3 w+ A% c
, G6 B$ s/ _1 D2 y+ grt random 360+ ?* f6 P& x* n0 A# s. g4 c
& [$ Z/ v: a0 L! V" n) h1 a
fd 1- B4 J9 i1 J+ y/ y! T; t( M
n S( X8 y: M2 g% W8 t. g]/ h, Z& g/ ^) V' a$ F" ?
Y$ m; o1 l P% a* ]end
X% c5 a/ r* k v; E" y
% F5 ]( Z- X' m& \4 U0 w* k b* `to do-trust , \& Y! i4 t) W* O0 U
set trust-ok False; O. D) U1 `1 ~
& T5 T; h& N' @
) ]7 j* x9 [/ [0 r% r( D9 U- Tlet max-trade-times 0
+ Y2 v' x1 ~; `$ |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% S8 _4 f% I5 `
let max-trade-money 0
) e- a; P8 z% n: R: @& Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: ]7 }: r" ]" ?; Q+ i9 R; b! a3 x
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ D4 u3 v: j* T+ y
: q& e( }5 w: B( J- [1 s2 \
& ~. ]6 j6 s& V; p. Iget-global-proportion4 q: }, E" V/ r
let trust-value
6 [3 _* c6 Y' n; ]4 _ I/ O, Slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)' o' }4 n" e& p9 \. C+ K" E
if(trust-value > trade-trust-value)
3 D6 i0 g4 K$ q+ x2 T+ T[set trust-ok true]
8 `9 m1 g5 R/ |9 G* F5 G* Fend1 h5 L, M" q( y# t+ i: Z$ ~
. m' ]. ~ S1 Q% D, k
to get-global-proportion
U2 `% v6 u q8 x6 Kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 Q. t& m! q- l) x8 P
[set global-proportion 0]' U' u8 l9 M4 W3 u7 b# u& y
[let i 0
. s- i, g& R0 a U0 H. w3 Slet sum-money 0
8 C/ q% Q: `3 e/ iwhile[ i < people]
2 h/ r2 v% B& u4 F[9 j) ^( P5 T% v
if( length (item i
# {: C6 v+ o+ @% D0 Z9 \[trade-record-all] of customer) > 3 ). w- X$ Q' @# V$ K6 O3 T. D. W/ H
[
5 T, ^' q$ J0 q$ kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' t" q" W9 y4 |0 t. l]
l: N4 c, p2 E: O T+ z. V]! s* f( j$ \: q t5 j$ d
let j 0
. [6 ?. P- K9 k5 N6 j& L! u- |let note 08 K4 X4 u2 Z% k. w' i
while[ j < people]" @ h& S2 O" k: b
[
7 A$ c, q" h z7 v! B: bif( length (item i; c6 n+ B6 p, W8 L: M: @
[trade-record-all] of customer) > 3 )
. u. y; [- w6 x3 x E[( ~& m1 M5 F8 X3 r- x8 T; Q* ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' U1 `! v) \( Z. a5 v6 b& R
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 J% x1 h1 X# ~- H' d& G7 u; d[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. l M% | g3 h/ @* c9 U6 Z, a& ~/ F
]& U! @" |7 X8 @# v
]. a2 G" z8 x! Z8 J
set global-proportion note5 S2 m1 p2 E. j$ T8 Q+ N2 s L Y
]
6 t, v& A3 B8 S( T1 f" o5 o8 Z/ ?9 `9 Kend
0 u9 e. A$ A$ d6 i M5 D) B& R/ q1 x5 C$ y; p* J, l" y$ \
to do-trade F/ ^( l- W: u- g2 d& l
;;这个过程实际上是给双方作出评价的过程
x8 U' `' |$ q& A: a7 U7 t% jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* M2 Y1 h7 ^& R$ p5 k9 t! [+ @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 g% i; c( ~/ x( s
set trade-record-current lput(timer) trade-record-current" T4 N1 U; i& g8 [. `
;;评价时间3 [) Y. x1 I: p" I+ Y7 ?- A: X
ask myself [
: P0 B# Z" R: `0 ^update-local-reputation' Q0 O% I; f" I
set trade-record-current lput([local-reputation] of myself) trade-record-current2 T( J: \: Q- c
]4 O- A( W8 k" B7 q- b
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. t; o/ p) n$ T" z
;;将此次交易的记录加入到trade-record-one中7 Z2 b! X0 r9 ]5 B
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, ^ v! ^+ {7 p {; T8 o7 o1 Dlet note (item 2 trade-record-current ). @: @+ s1 i7 G
set trade-record-current
; @5 q4 C9 o3 c( W(replace-item 2 trade-record-current (item 3 trade-record-current)): K; H8 Q* B* W2 r9 l& R+ M. w
set trade-record-current/ L, J! k9 [- o- e0 E" X' [
(replace-item 3 trade-record-current note)6 ?. c' [: L4 ]$ v& E
$ T& m" Y# x2 A) D* t8 O: l2 l2 _" q( E4 h* {9 Z
ask customer [3 k1 A- ^. _0 ^/ }5 z* k6 a
update-local-reputation
* I- L# ^" n# Y3 t6 u5 \* Gset trade-record-current9 F9 v* ~! R. P# V$ Y* I1 V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" ~# ^( o/ C6 Q* f; []
' _) H1 x5 {1 t: b# Q
3 y# ~" A- S9 f2 k5 O+ Y- w" o0 N+ }4 E
6 S& |& s5 i. F/ Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 L1 z" z# `$ i; j
7 v! f4 E6 {& R" Iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# M7 A4 K0 G3 R* ]4 c* G0 q t;;将此次交易的记录加入到customer的trade-record-all中" \" h! z* b8 w3 |
end, Q6 \' o( u8 V7 v% u' {# M
" D& `& `( U3 V- m5 H6 s( h/ y* ]
to update-local-reputation
' Q. F$ ?: d" A( p: k/ yset [trade-record-one-len] of myself length [trade-record-one] of myself
$ ~( ^: Z9 Y( h9 W
) ^. X f2 \* ?( B, ]! t" m/ V7 T9 J a/ i1 Y- c3 z
;;if [trade-record-one-len] of myself > 3 * ]; h8 B" F% O1 x
update-neighbor-total
2 R. w2 e' T) d; U: v" e2 c;;更新邻居节点的数目,在此进行' Y% @* \. I7 R) @0 Z: u
let i 3
9 l* F( r" [& A2 \" G4 T1 Klet sum-time 0
3 Y/ a3 Q) u8 L) S: a( \while[i < [trade-record-one-len] of myself]' C9 S8 L5 A* Y% S: C8 R* D. ^
[ w5 B2 Q; B1 @5 o" d
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): g( e& e0 |6 b$ g7 q0 {$ ?
set i
9 w* d) W( D6 j; |; \% m- z7 m# H( i + 1)
) y& S) _; x; v+ e% d]
B' k2 U8 q6 q+ z" b! V9 }; Flet j 3
8 h- N7 {1 D ^- k! y( z5 u8 ]let sum-money 0
- [& j5 F! t6 @( hwhile[j < [trade-record-one-len] of myself]
; A" u) }' \' m[
2 J1 [+ I% H E; S: M9 Dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)2 M" ?# @6 l( M+ Y9 W3 _
set j+ E& U5 p) i; W
( j + 1)% @$ w; G# y. {6 A' n/ G
]
; _! r, z* B1 }7 L$ ~# R, _let k 3* t0 v9 t& Q0 G6 U4 r
let power 04 b) d/ j! @8 D& v6 Z) b& Y
let local 07 j" [! W3 C( f7 C g: k F
while [k <[trade-record-one-len] of myself]* I, s$ Q4 V3 x C3 g
[" W$ z, F, h. 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)
: x0 c1 ?9 F2 t/ T) Tset k (k + 1)) `9 f, J' |" Z' m( ]8 E ?
]
* |1 g: E6 [% p7 Vset [local-reputation] of myself (local)" r0 f9 A' R6 S6 v' l+ n( j$ c
end8 y) u+ C6 l+ `4 b
: `/ U Y( _( C5 W: |to update-neighbor-total/ K: H! A1 F8 |/ v; P0 Y
: z, X$ ^8 Q+ j/ f P
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" C# y: i+ r" E$ X: I! n% V! T' B3 L) p- T# s
% R9 z- }+ k9 s$ g) z+ o
end2 ~ T- O/ [& [3 s/ u
4 l3 ?& z- N6 X
to update-credibility-ijl
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;;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。
- I( P$ |7 H3 J- M# c& P/ Q7 wlet l 07 F- o) A. l" [. Q8 y
while[ l < people ]% `9 s- O# J' w2 \
;;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 y; e# s9 l& E. t" M, n% w
[
/ K4 L. I3 s' t) J4 ?( `* z5 \# Y0 G! {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 \. S- \7 @" w: H& O! Yif (trade-record-one-j-l-len > 3)% W$ x4 G( m: |5 V. z6 Y
[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
$ D5 ~( u0 [( q- ~let i 3
5 |! r/ V0 `: _8 u7 C1 B) P& g/ Mlet sum-time 0
4 y# r4 W1 h6 r2 f: v4 `while[i < trade-record-one-len]
q/ ^: A$ m( h[
5 y2 m$ V( W: v" ~1 R& ~set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ Z6 i+ Z9 I' I9 ~, A3 L: iset i, E; ~) C, s# J' X$ y- g# j$ \
( i + 1)1 E$ z8 v" {- Z# K4 t8 Z, C
]
2 F/ r- _3 S0 _( ?3 X% L+ a& qlet credibility-i-j-l 0; D+ F$ `( h3 B4 N2 Y
;;i评价(j对jl的评价)7 G% I# l6 ~, o
let j 3
8 c* B2 v7 ]/ C& y! ^let k 4+ b2 ^4 ^9 r. w x
while[j < trade-record-one-len]! f4 E8 {* z9 j: `' [( ^+ x5 ^ a
[7 {6 C: Y' w" K0 [, n4 ~2 v! Q
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
1 s& b4 k1 n+ `+ W3 l/ c3 ^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)
+ s# d8 I$ P# p( e Lset j
0 Q- ^! v0 ` ]( j + 1)
1 C, A4 ?! Z- H; L7 m2 g]
6 r& Z! p3 v* Uset [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 ))' N! H( |6 w6 `! @
5 J) r' e( x3 ]: x* e
" E& S. w* \$ @( r! u5 l( vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), i5 |6 k& [ X' }( d
;;及时更新i对l的评价质量的评价
- G6 r, r s/ O% y0 R* ~set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 ^( U/ Z# Z5 y) W# M0 [* k2 Nset l (l + 1)
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* Q: f1 D( t, y( T& l! Wend! ?( B8 L- y8 ?
$ X6 [; ?" [# A2 M/ k
to update-credibility-list
0 {. x; ]0 C9 o8 Rlet i 05 r0 L! K1 d4 ^
while[i < people]
! W/ W) K1 ]$ r' h[
) S* u1 e2 ]' Y% L: c, c; _! clet j 0! O( B# z. S1 N" l; ]& h
let note 06 n' [5 @ b0 }5 e" ^$ L
let k 04 `! p2 P; T- I+ i
;;计作出过评价的邻居节点的数目$ {2 r0 R2 H* _
while[j < people]6 Z* {' C+ k! ?9 `2 `
[
" M) h! w# J6 h9 N. Eif (item j( [credibility] of turtle (i + 1)) != -1)
: S/ D% i% y# I( s, e% s;;判断是否给本turtle的评价质量做出过评价的节点
* y5 N* x) Z8 q! ?[set note (note + item j ([credibility]of turtle (i + 1)))( _: U' j$ ]% A2 V6 @5 M0 |
;;*(exp (-(people - 2)))/(people - 2))] M# t) {; Z& D- A4 n' @5 X9 q
set k (k + 1)" z% E$ [: u7 h8 `" z) K
]
6 ~) d) P1 J) mset j (j + 1)
: U1 z9 j; L& L& N]& f4 R$ R" q. i9 b* J7 y
set note (note *(exp (- (1 / k)))/ k)
( f- `3 [# A/ N! @& O+ Fset credibility-list (replace-item i credibility-list note)/ q2 C2 W' S" s4 p
set i (i + 1)+ G8 u1 g6 q" H7 m7 z
]* K; Z( G. E4 T) H2 e$ J4 C
end! I2 h( z( F7 Q: [1 h% I
9 s0 h1 @8 \1 }( O9 p& [! C1 uto update-global-reputation-list% m# p. O- ~, S1 u- d
let j 0
0 d$ _5 ]0 Q' P$ awhile[j < people]! l! _* S$ C4 c5 d( Y7 O# O9 N8 z
[
4 I+ I4 ?: D4 g [4 j7 Mlet new 00 M2 L7 M: e* t
;;暂存新的一个全局声誉- r7 z2 \( ~0 ?* y4 Z
let i 04 a* C) {2 w3 |. Q, G2 x- G
let sum-money 0! d) y. I" A$ u: Q5 I% U+ X
let credibility-money 0
3 M1 `# w/ i. R1 Owhile [i < people]6 ?5 c& b2 n" u0 d, w
[2 h/ `) q5 h( y- [
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ [* [" ?6 o8 S' f7 c; zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 B$ E5 V# Q8 ?
set i (i + 1)
( }$ h" G G# R7 [0 C8 y9 ~]
) U& _; E) Q* C2 R4 tlet k 0- ~" d2 E5 C- w2 I& X
let new1 0
6 K+ t9 B7 s8 j9 D5 }while [k < people]
4 Y7 h% s7 b& ^4 H3 c/ ?6 t1 n8 z+ E[& b- m, p8 B. m% a8 P5 {7 ?
set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)) u7 z3 q4 C& N* X* t9 o' C1 ~* D
set k (k + 1). W! `1 o1 i7 i1 ^2 `2 {. H
]
# P8 w- K& ]7 G' i6 f( `set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* \) ?+ ~' g: w7 {set global-reputation-list (replace-item j global-reputation-list new)- s: N( }' B! u( t
set j (j + 1)
' U1 _. A% T+ L# T) z) \]
5 E* |2 o: ~$ j- Uend
* C+ L+ x' E& ?" Q, V% Y! @; U' R4 o, B2 V
: g9 U, M3 Z+ W. h4 _7 |$ q9 l" j
. I0 i& m2 w* m# m: W. q1 V* Lto get-color
- o! c0 _6 ^ I# Z
; I1 t, i! P: w5 h) aset color blue
P& u$ i' T3 G6 K* X) i: ?# V ?' X4 Z, Xend
0 F3 z: a( Z% e# x# u! J& p
+ Y4 y1 J" S' S. `to poll-class) c% l; R/ `$ N( C2 P
end
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to setup-plot1& F% K8 I; x: s
/ M2 F' N* G4 S
set-current-plot "Trends-of-Local-reputation"6 I9 s# K4 Y1 l0 ? E! ^& b9 O
, d5 y8 U. s8 p0 [9 Jset-plot-x-range 0 xmax j9 b8 P/ I/ ~
1 j" t9 x, a* j+ Aset-plot-y-range 0.0 ymax
5 ?! e; d! \9 {+ ^1 |# yend+ M Q# O" r: r; D6 L! ^( _4 ]
" i+ Z/ \6 u5 _" A' s* q5 L
to setup-plot21 M1 U& t! _" _. s+ k
! M- J% P4 v3 W- ~* D$ B8 o0 A5 mset-current-plot "Trends-of-global-reputation"$ T+ Q% F" L t- l
* J: s- u" m2 u+ p1 m: ]$ H/ p; Gset-plot-x-range 0 xmax
2 N+ Z2 Z5 ~ f) M @- f- ]7 t: Y. W- d+ i0 K
set-plot-y-range 0.0 ymax, e9 w# A- p9 C5 _
end. I+ C6 G- I9 ^
+ T+ {, _# i1 C _9 M1 S
to setup-plot3: V& j* O$ N* M: S R
& z+ n+ h8 H3 mset-current-plot "Trends-of-credibility"9 E% @1 _, D: v, f! C1 p+ @9 h
4 v- ], @- Q9 @+ w8 a+ e
set-plot-x-range 0 xmax, Q, C/ R9 [% k% L1 |! Z
8 c8 |, Q G: p8 i! g0 bset-plot-y-range 0.0 ymax
( T1 T$ B( x6 a4 send
, p" L- A8 n* J3 l8 c1 o6 Q
2 `% P+ ]2 g, e9 n6 \" Sto do-plots, O; H; b4 ~( y6 }3 h
set-current-plot "Trends-of-Local-reputation"
" C H3 p! h; X% \% sset-current-plot-pen "Honest service"; G* E5 y! `8 t- W+ d: U! n# C4 B
end; O2 f. p" x- y4 z% ] K! W
# v7 [. k* w4 n! H* @. v0 Y2 s
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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