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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1 S1 x# u/ N7 G! u# b. W9 @6 c
globals[) T7 ]7 a! i8 j7 L& C
xmax' b0 X; q: Q$ ?
ymax7 J4 E8 b; [( Z! i! C$ O
global-reputation-list9 j- |; d3 I [" \. `4 U
8 x( T" I+ [6 |3 ]/ \. R9 s2 C* w;;每一个turtle的全局声誉都存在此LIST中+ W4 q, J1 v) U
credibility-list3 H# [2 u$ g, S
;;每一个turtle的评价可信度
- _9 { l0 p: K8 ^: `honest-service
" i, f2 N9 B- |" y6 funhonest-service
; k E' | j5 c* h( s& q" c, Joscillation
8 Q0 A" \' ~# U; g |rand-dynamic
# r+ H! o; ? g% h% k+ L& ?]1 b/ H% Q7 |1 \( G
. Z* G$ |" B% S8 I
turtles-own[
& o7 W, d8 \3 v5 W& ?: k( J! R9 d. ytrade-record-all
: W, o4 F4 v1 S" G8 b9 m. R;;a list of lists,由trade-record-one组成+ x" H2 J; R2 A% S1 Z; N
trade-record-one. R) f! E( n' ]) J* ^& s" v
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( m, m* o8 ?/ q& x+ B2 H9 v
/ u8 l' N5 @# B+ {* A;;[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]]
+ `; I7 b; v, ~' }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]
6 C/ J0 \ ?2 `8 k- Fcredibility-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list9 T' J v' E/ X* i* Q
neighbor-total
. A0 A) T# K. Z7 {2 X;;记录该turtle的邻居节点的数目
7 r1 f" A$ r+ V0 Ltrade-time
( q0 q0 O- j% c. };;当前发生交易的turtle的交易时间' t* g/ `! j7 F. p3 T3 A. T
appraise-give
* {/ C* q+ u# m9 e: `8 b$ O" r7 _# F;;当前发生交易时给出的评价
2 X2 L: S5 W$ Mappraise-receive
5 }4 Y2 ^% @0 ]* U) A;;当前发生交易时收到的评价
* f: X) r) [; o/ Mappraise-time1 y( D& w! U1 h- r' }
;;当前发生交易时的评价时间
- X$ U2 z3 k9 Plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) n8 f" ~3 G& ?( t3 Ntrade-times-total* j8 i6 f2 m3 r7 L8 z l! G
;;与当前turtle的交易总次数
* ~! K+ @& F& p/ C( mtrade-money-total
) U6 y* R+ x. A2 q# a4 Y;;与当前turtle的交易总金额
/ U$ d' \' {) d6 x9 k* zlocal-reputation: x. G! y5 r) M6 I
global-reputation
- F4 e, x6 P2 @; N) Zcredibility2 p5 S* _; G+ g8 g
;;评价可信度,每次交易后都需要更新) t. i' b" V: s$ C1 `2 k
credibility-all
6 [, N" F7 T" n1 f5 `* l5 d4 u;;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 g' m" x, A- w$ h8 q
/ J. R0 r7 v3 R% d! M+ Q
;;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
# W& e6 Z# a& J' X" s4 \ Mcredibility-one- w* f Q1 M$ |* f( R
;;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
9 m3 h# n- K3 r0 B5 Wglobal-proportion
0 E8 C4 A8 D5 x" w0 ~" U- Icustomer: ^& N/ V+ E/ P$ g( X; z
customer-no
% [% j) K# M" s9 ]8 G# A2 Ctrust-ok6 K$ A" A5 Q& f3 n* s
trade-record-one-len;;trade-record-one的长度
4 U4 ~; a+ o7 n]: x$ A3 X9 X8 D; [6 c) u, A
3 G* p! |3 n* a3 n" X1 v;;setup procedure5 |7 I8 e) R9 N! X4 F9 V4 l: z( J
/ a) z% ~. c4 x4 O R4 vto setup
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ca
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5 b; v- j% R3 r) einitialize-settings- i- i: E4 p" ?9 x
% E" H3 D9 W( @: ncrt people [setup-turtles]4 Y% g* T! i9 ]( ^5 t
3 l9 e |# W% jreset-timer
y, y1 T2 W8 p( y# y$ a
9 a( a4 q0 }1 @5 }$ Mpoll-class% d5 L! f+ Z# E; G* Y7 d1 z: J) W9 E
8 F; z! ~6 T) v7 |( z
setup-plots R" G5 j9 _8 G3 @# m
7 M) q1 E+ u2 t/ Q9 A- V# Vdo-plots
6 _2 o# q Z k. l( C6 h( g6 iend
! J! [, H0 m& G: X* b: `. X3 {" y2 S3 c$ s& `+ L8 E) O) v9 Q
to initialize-settings' t, [1 T; B8 e$ z
$ W8 k2 N6 r+ W- v. {
set global-reputation-list []( e- F+ f9 s! |2 e' S" a
# }7 i% \! H/ h+ P! sset credibility-list n-values people [0.5]/ F/ O3 O4 j- v: C' S6 u
5 @8 b" l; J a) j& Gset honest-service 0, f- Q6 W# i: s% F
7 [% t# e6 y/ L
set unhonest-service 0
3 [1 Z9 P' Z. P
" A$ C) K! z- Z) I5 v$ C# Pset oscillation 0, ~) D3 c* I1 x1 w+ C4 Y" W
! O/ H" H! t. x3 Z; Q6 j
set rand-dynamic 0) a* I, D+ w4 t* M: s
end
0 n. ^1 S2 k' I7 z1 H
0 J! i! V* q! q( ~8 o6 Tto setup-turtles
7 q0 `- U/ ^5 n3 p6 {1 Wset shape "person"/ Z3 e+ j" T# q
setxy random-xcor random-ycor
) l1 d* m2 H' z9 ^set trade-record-one []* n4 ]9 W7 ]0 g
& S% e3 E4 {( |
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 e/ U8 \9 r8 ~: b, _' J. m
/ E8 ]. j9 K8 z* T' y
set trade-record-current []+ R$ h- r0 G# j: w/ k
set credibility-receive []4 |$ g' U) s; N
set local-reputation 0.5
# m, p, c8 W' t$ B7 ]2 Xset neighbor-total 0. n+ {" y& z) n0 Z6 G
set trade-times-total 0
. ?! _" x; h9 N% m3 [" o7 \( Oset trade-money-total 0. L0 u* y7 J# ~2 }8 n' ^; Z
set customer nobody
! m0 U2 u6 h" y& A4 I5 lset credibility-all n-values people [creat-credibility]' M0 `+ X; C: V7 B9 q0 l
set credibility n-values people [-1]
% f3 ^7 y# P0 j+ @, L4 Pget-color
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end6 y+ h& y) }6 H1 q1 c; ^7 Y( n6 o, b
7 o) r( p) _+ F
to-report creat-credibility
9 M0 o( T) l/ a) Preport n-values people [0.5]
% W7 y# U' m* e o3 Xend
* M# d2 z" s% H" Z( [% l8 c9 x n! j; t* M4 @! F x, P
to setup-plots2 l# ^8 u' l9 n- g, d3 h8 f
5 c& g9 R0 h0 B+ N/ I8 K, ]set xmax 30
* N( C3 `1 X+ U
- q# ~+ h/ n! s7 Z( r) iset ymax 1.0' H( J1 p7 S# `0 @' Z: N @
! _) p' u" n$ v* Q9 N& t
clear-all-plots |- H" @: ]# Q* s3 a9 o' l
: f+ c# i( X B% [setup-plot1! p# g8 C7 d+ n" Y: @. {
# Q& B0 e! a- C& c! P8 @
setup-plot2. g: D1 q B+ v5 H8 V% i# K
/ L1 y5 V$ ^. B8 f) i
setup-plot3- \( A8 h7 m) Q W' b9 i! {
end
3 O% h2 q( L9 r9 t; W
9 d3 Y' p7 f# ], { B+ ]4 h9 D;;run time procedures) [3 y& b# [# t4 p: k* s
6 c7 C1 U! }+ U" |' n d% R6 U% pto go; L$ U% D& {: v% u& [
- p3 R8 a( M8 L) n
ask turtles [do-business]
# \& S- Q8 o' K2 Q3 z0 Nend
) n5 x5 z( i5 y& X" x* q7 b+ W) r
6 f4 y: M/ O/ G8 tto do-business
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6 ] m; m" d/ _) p- r: F7 `
6 P$ l4 C: t; z. g! Prt random 3606 b: w' U+ o% Z4 `9 z4 S( }
1 t" C2 @( o4 B* [( s, \" s ~fd 12 Z; i" z/ c0 j& y$ C: L+ c
, ]5 O0 `3 S x* l
ifelse(other turtles-here != nobody)[# n: t# A4 V8 W% k$ k
; d' C7 |0 ]" q8 [' Lset customer one-of other turtles-here D/ E" {, J+ B; z2 d7 D y8 d" t
! ]: f& c5 N% o$ F& y: H
;; set [customer] of customer myself
* }7 S1 O( v0 ^5 G3 S0 n$ H
* p; s0 N* P# @. H4 b3 O, Qset [trade-record-one] of self item (([who] of customer) - 1)* w& m' h9 V h" V4 z5 [% s" m' L
[trade-record-all]of self% C% W/ J5 _( l- f, V6 `
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. C3 l$ z/ A) e. Q5 m' u, y$ c9 h }/ e+ u) C
set [trade-record-one] of customer item (([who] of self) - 1)2 }: v+ F% H4 d& w6 h( E
[trade-record-all]of customer
# ~* T. y" M$ L
3 \( r* {( y8 W* _7 K. Z3 Vset [trade-record-one-len] of self length [trade-record-one] of self" B# M4 F, `) ?
; R9 A( f) S8 q& M" q" f5 gset trade-record-current( list (timer) (random money-upper-limit))# J, y! u: K& o; [/ B
( `7 s0 N: p& r5 ^
ask self [do-trust]
7 b0 K: `0 P2 h$ W7 y. T;;先求i对j的信任度; ?+ G/ y# h* S' y6 h7 l
& Y0 i; n$ Z+ y, j6 g
if ([trust-ok] of self)
6 T3 C) h# X8 s' R3 g* o;;根据i对j的信任度来决定是否与j进行交易[
% a+ N. P2 [8 [- s" {, I0 I/ L1 a7 Mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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5 S( z j- ]2 _0 L+ u5 J7 {% A6 T
+ |6 v. L6 z n. I/ wdo-trade
9 Q3 S5 |6 X# a) F& @+ `# f/ o3 \4 w! B0 A) @
update-credibility-ijl
% [- A* f% R' _0 f% u) r7 Z0 B( n
4 l' \/ J1 ]( `/ g: H; aupdate-credibility-list
& X. j$ s6 `! r( A: z" L n; I
9 g& K+ E& t0 N2 M/ E7 z3 U R9 J5 E" U9 ]1 n
update-global-reputation-list ~# n% {8 R) l
% M, \* ?9 A8 K
poll-class* V9 D/ K9 ~2 s; @
! X: \; A, r( jget-color/ s5 ]: X- D& B, v- r8 D3 }
6 Z& q: [9 B$ _; t
]]
3 \6 @) |2 ]$ d M7 Z' Q$ M9 f& i) F* ^& f) a! S
;;如果所得的信任度满足条件,则进行交易
; M" E- a2 q2 h+ B3 e$ k6 t+ Z
# ^0 W- j4 k6 s% D+ M* Y0 k[
/ B5 b' _; l8 p& S' y/ U, Y, \ ~4 X5 U' a8 @& k3 \: K
rt random 360
2 f, y4 h) u! J4 z: e0 Y$ t
3 ?9 X# i" r7 Y" b9 A3 c& |$ Dfd 1
) w3 E$ c- p+ ^
1 L0 Z' G2 O8 ~6 A; U2 h]1 z% d3 S. ]! K+ g/ d* c6 L2 \
7 c$ ^6 W! f$ K
end2 K; h* K' _4 E! [
2 i- {2 U4 N/ cto do-trust
1 q. j, `) ~. j+ H7 w# Z Gset trust-ok False
- o ?( u0 d" [# B6 W4 `* |
/ H* t: b! O' j$ |3 l* i, \
8 Z/ }1 u2 X) J2 r4 llet max-trade-times 0
$ D N3 f- h) y9 H/ Fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ V9 o' b+ E" G9 ^* Flet max-trade-money 0& S$ c: V* Q% d, q; L) _
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
* E3 }/ u u+ S- X% E* ^9 B4 alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% p* K/ _7 B: N4 u' k' M$ T
2 Q5 }4 f- o) s' \8 q; |( ]1 [0 F) j$ F
get-global-proportion
. O n3 ~4 H% }& ^5 Plet trust-value3 }' d) g2 z- w% |, W) }2 r
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)
6 N5 u/ t: z* R$ v4 Zif(trust-value > trade-trust-value)
* a- D4 Y( m& t) c5 G! ~1 C: r[set trust-ok true]
* `4 R) M/ X- y6 f, F+ D) @end
& ~2 K y& j. O/ M3 t+ A( Y6 }8 m4 \
to get-global-proportion( ^2 _8 `6 m; |5 u3 L8 `) D
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! [# [5 z9 E) J; `- z[set global-proportion 0]
6 D8 X& F4 M% j5 z[let i 0, M, z# y% `' P
let sum-money 0 \0 k! q- W+ q' |
while[ i < people]
. _- c/ Z7 v0 t! S: _[
+ r5 ]; S* {9 a! hif( length (item i
9 r9 D) A" U/ T[trade-record-all] of customer) > 3 )- `, o) L: k5 a- T3 v9 u! V
[6 k- i# P) ~2 h8 w% F) _2 `
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 D {6 W% n" L- v, x$ `! t4 y9 d]1 m5 G( d7 M: m. H2 n
]# @2 Y0 B/ C0 [4 z: ]
let j 01 e+ s; g3 ^& @
let note 07 @1 [% ~0 ]( m$ w
while[ j < people]
! o* ^; T4 E! o! ^1 [4 Q* j6 _[5 q' z5 Q4 c! k$ f( l* W3 a
if( length (item i0 S" H0 e( a2 H
[trade-record-all] of customer) > 3 )
* v. Y' I# H H[7 R/ r, d r% E1 y) n
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ g. R: _9 B1 ?! ~8 ?[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
/ ?4 x" d7 _% a( |& a; Q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 r6 k' D5 e% @& B, t) K" _" r9 P]8 r; F. T3 G# R' B0 b; \. m
]% `2 w- x9 `! n! a! p4 R) |; ~
set global-proportion note
4 h9 n) C) K. X% {! A, q) A]: b9 P6 X: ]" d2 N8 P3 G ^
end
5 s* Y2 I c0 A9 w0 e9 n3 O7 H, b2 i, q; V: T2 B6 o, k
to do-trade
* f; d# X2 S6 ]7 X- `;;这个过程实际上是给双方作出评价的过程6 q& a, T1 K& ^5 C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ N. [/ H3 O% m; ]$ hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 q) T. P) Z/ x7 D( j
set trade-record-current lput(timer) trade-record-current
. X! o! ?. a: V;;评价时间; L/ v2 X4 X. n5 \* @4 w& b8 ~) a
ask myself [
9 ^ E* v& ^3 Bupdate-local-reputation
7 I; z" r0 `1 @, ]9 Bset trade-record-current lput([local-reputation] of myself) trade-record-current
( m# ~5 C8 H1 E- G]2 o# s5 n' n. b
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 U4 P0 N% j0 m( X5 x; ^; g
;;将此次交易的记录加入到trade-record-one中
" M$ q2 a* r) C2 k" \( q/ L4 bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 C* j8 A" O$ c" Clet note (item 2 trade-record-current )" M, o+ S+ ^7 J. m5 h9 h6 Y! m
set trade-record-current p+ U4 I3 q3 Q9 F1 w, s3 g
(replace-item 2 trade-record-current (item 3 trade-record-current))+ x( K/ r0 j! T! ?
set trade-record-current, [5 {! F* u# l
(replace-item 3 trade-record-current note)
6 q5 N; }1 W4 Z
/ }+ h2 g& K$ c% {% ~
# F3 j0 [7 ^0 ?' kask customer [& M4 p N8 Q9 E6 ~+ [% G9 g. B7 l
update-local-reputation
$ A4 Z6 p& Z1 B' d1 V( d" mset trade-record-current
! r# c2 n! D3 Z! Q(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( F" T5 b( b/ d( }( M0 @
]3 h1 J) B4 L' W/ D" B
. [4 }& r& x* ]/ _4 h% E& J$ u& F2 n+ v) @# @6 J
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 O2 P, n7 u" i) U" y2 u; O
" l; m' j2 x. A3 h+ L( sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' p9 X8 x" W4 [+ `5 ?, i$ c* {! u& s;;将此次交易的记录加入到customer的trade-record-all中/ e; r6 i( P* e1 R: o+ g, t4 F
end& h3 v& u, B7 s R8 u/ l: T) V- ~
; Q: K' P. i f& S* B. Tto update-local-reputation
. _# I# ]! `/ l6 S9 O" b& T$ qset [trade-record-one-len] of myself length [trade-record-one] of myself4 d( u9 G0 A0 ~. m. k7 v' O \
: ~) T3 C# w }, |; O4 v4 [
. P2 Q% {0 V! b; j;;if [trade-record-one-len] of myself > 3
. {4 ^. I2 s& h$ Bupdate-neighbor-total
1 I ]7 a1 @' l1 A;;更新邻居节点的数目,在此进行
; ` m7 O1 I1 }5 |/ U$ ^$ Y3 ylet i 3
" @5 K, |* D4 ^1 klet sum-time 0
8 N& X9 Y7 w2 f7 [/ Fwhile[i < [trade-record-one-len] of myself]$ Q! }, d7 V- S
[, X0 R, {4 c; o" o& s: f3 |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, x S. f3 S5 e$ u& @5 C( C5 p2 b% Hset i* x: o( g1 {& N* g9 k
( i + 1)
3 i; t0 F6 L/ G' V]1 s0 t! ]3 x% i8 P
let j 3# `. S5 G4 ?4 Y$ O8 l$ j0 x
let sum-money 0; U; d8 q( s- i) ? G- |! [
while[j < [trade-record-one-len] of myself]1 ^) c7 o: t, v. @- ]
[
A) ~6 S9 Z, @# @8 p: pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ |& A0 m, D" K- Qset j; ~% w; x& N3 o; f
( j + 1)$ I4 I+ f$ h" E" g/ E0 ~2 k
]" X5 R& u6 C+ A5 a
let k 3 Q' Z% |# c5 i ]) k
let power 06 G3 [3 D" b/ k& _0 b& Y
let local 0
/ ?8 X+ X( H9 C, m( @& o# T8 c4 Pwhile [k <[trade-record-one-len] of myself]
3 \: w) a; v- i, y[! c9 g) n+ u/ P. j
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) * ?+ @/ w$ v) X* X( j9 Z# Q$ i5 e
set k (k + 1)9 k, }1 Q: n) V3 t
]
' j# N5 W0 w) ?9 W; N: `set [local-reputation] of myself (local)4 p$ G# U8 ]% Z! Q* b. p) Z+ Y
end
5 ^ H7 a. q- W3 t3 N/ P, N' E2 _2 L
to update-neighbor-total
! \7 w) E" \1 I" E# c8 @
8 \# G) B1 `8 \% h: tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! [6 m9 k/ m' q, s; p/ N. U
* |8 U5 ?8 G' D# a
u s, D& P* D+ ]/ x6 L" rend; l- w% N* r4 t& L/ B" [
. Y1 n+ e R- E* ?! O2 Ito update-credibility-ijl
9 @, {% i3 N, M6 f, E$ |
8 b/ ^& Y7 T9 b' P( t;;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。/ |5 i$ Q4 k% _0 q. v5 g
let l 0$ p* E. S9 r }
while[ l < people ]$ O) i8 l! e; W+ [# |# d* ]5 l
;;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. P% T3 `" B4 S. U
[
3 H/ J) }: X8 G0 klet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' m! ?% I2 c* C+ sif (trade-record-one-j-l-len > 3)/ Q4 ]5 i4 r2 d) `
[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-one6 _$ P l, D0 E4 s: o! g
let i 3! y& k: [8 C9 a/ s: B
let sum-time 0
- y; x4 j- }# C/ i3 Q* y- nwhile[i < trade-record-one-len]
: e& \+ i9 N2 I7 I! _. Q[
% S3 h1 V6 S$ Z) W3 Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) o+ l1 I2 `! a/ u# A+ M( F/ j
set i6 L' r! {9 }: S: H0 a7 t: ^
( i + 1)+ q( a. I: i0 f0 [5 l6 t- ]
]
2 F1 W- L B" plet credibility-i-j-l 0
9 T1 P( p: n/ L' P;;i评价(j对jl的评价)6 u8 M( t6 W8 ]2 S) c' r
let j 3+ r. W, f9 p1 Y k
let k 40 L$ R+ c/ y/ |+ w
while[j < trade-record-one-len]
" u6 t9 {& y, k/ @, K5 n* @4 d* D8 h( V[
: ~9 ]$ ~+ v/ zwhile [((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 e q' F% |: f v* ]( g$ H
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). r: ?' Y, X* b( J
set j
0 k( {4 [0 b0 y7 [ D/ ~( j + 1)
" R$ R# e) Q* E: [1 H4 p, B]) k# g6 j; }; g3 P' \' b; z
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 ))
' t; _( O0 }+ {. }5 J7 i( X4 B# i% m: v; f/ t, m
9 D% y7 X/ V/ x3 x- u) zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 G$ q. ]1 G0 J4 N& B( u" m;;及时更新i对l的评价质量的评价
+ Y* I% { a+ `set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 V" D3 E, |# S/ i8 ^set l (l + 1)9 a1 C, I: X. B# V M) k
]- n R. L3 V6 `, f t$ }+ h( T6 S
end0 p" d4 Q- Y: t3 V4 F. @. P
( g; F1 Z+ i0 O% m- u# Lto update-credibility-list
4 i6 X% F, S$ r# a6 Z6 `let i 0& @* e5 s. _- i! i& c& s
while[i < people]
% p c7 b! ]: f/ O0 T/ ~) Z[
% ]- `$ s4 g: o9 ]0 slet j 0. }6 `! b0 K# \: X
let note 0& @3 J- b+ ?. s5 `0 C v5 E2 G
let k 0 ?% v, z+ a p7 X+ I5 Y$ J, c' L
;;计作出过评价的邻居节点的数目3 R1 h6 V' P) y
while[j < people]) ~3 w9 ?: }) h1 ]! u0 t- [( P
[+ b( `0 {1 D: `3 u
if (item j( [credibility] of turtle (i + 1)) != -1)
3 H( j* q$ S. T& g6 b: q. H( ];;判断是否给本turtle的评价质量做出过评价的节点
5 ~( A' m& V; H& P[set note (note + item j ([credibility]of turtle (i + 1)))2 K& P) r) c/ W( y# [: E. d# C
;;*(exp (-(people - 2)))/(people - 2))]
4 |. ~/ m/ ~& S _set k (k + 1)9 g: G( L( X4 d; I: R( l* Y$ l2 J
]
$ W( v9 h" p2 O# Tset j (j + 1)
7 R5 m |2 Y7 ?' Q4 ?$ H]
4 J( x G- ^- n `# n5 xset note (note *(exp (- (1 / k)))/ k)$ t1 f- J! Z* w" d
set credibility-list (replace-item i credibility-list note)5 \. N, ~4 f- o% M# C) B! l
set i (i + 1)
0 a' N) d0 ^4 d" ]" m/ U]/ o+ }6 q' E X( G# n" X
end
! b7 F, i1 [* _' y7 }7 k& J
1 ~, \0 ]4 a& g0 xto update-global-reputation-list" Y1 i) N0 @1 `1 @2 f* F
let j 0
" a2 G" P" ^: g4 _5 pwhile[j < people] t1 G# S% ^8 E. {% d
[
( T( u3 n7 k- }, @) Olet new 0
; X8 ~% H5 [& k0 Y8 v;;暂存新的一个全局声誉9 @! R/ Y7 S7 r
let i 0
7 A0 v3 f! o1 rlet sum-money 0
/ D: ^% p r% y+ }let credibility-money 0% G [/ V4 H- k/ q% T
while [i < people]
7 v. ~! A2 J5 ?' H. z, f[
! S. D% X+ R0 b1 ~, Z% l& Kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ {7 e. \+ m! ~! n! rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' i# a& _. G. N$ ?" y7 j9 r Dset i (i + 1)
7 S0 F0 @& b3 [3 u]5 s# ^1 c. J( ?
let k 0
$ ]$ X4 {: r7 G( K! elet new1 01 l, Q3 x" [/ ~! G, a, t
while [k < people]8 z% l9 N; s( l9 Z9 v
[
) j. ^7 h* N3 i; `% H# Hset 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)
, ~( J5 I- p R4 @set k (k + 1)
/ J J4 ~$ _9 v3 m% I* N]
. e/ m0 A; L# |( u, uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; ]! j7 G1 @7 N5 r; R
set global-reputation-list (replace-item j global-reputation-list new)
2 j/ F2 @! }) g7 K) Y4 Zset j (j + 1)/ w* i+ F$ v4 ` M3 k
]
: j; p5 f7 F( E1 v2 O3 Eend3 y' S/ c3 W, w: f
% o: g P1 Z. L- z
; e+ K: @% v$ `4 i
$ a- b- T- S/ }7 [% w9 ~ t5 Zto get-color
' i5 Q# \) h. M0 Y- D
. S; M3 f+ `$ Q/ r3 {" oset color blue
- e- c: y& u' n, b9 l* I% I* aend
4 r. i( X% d) B' H' z) s/ l% l) s: {- b3 ^8 V: r
to poll-class# n9 w5 P9 T$ _6 q
end: b* F$ M T( y' L7 r* w: X, w* V
3 N' [4 V+ ?- m$ w7 q5 ^
to setup-plot1
" G. E6 ^3 u l* ?7 a
6 q5 O \- q: mset-current-plot "Trends-of-Local-reputation"
; z0 h0 K* b% F# T2 S0 K5 R6 k0 v: M0 X4 R
set-plot-x-range 0 xmax. `! q# w `, s9 e
: t$ U' n [0 @) N, \9 w% Lset-plot-y-range 0.0 ymax
# s7 p6 M( K' N5 T1 y$ cend
1 E7 O j5 ?" I8 ?. A2 @/ W X A7 l/ M' G0 A9 ~
to setup-plot2
3 F) e1 i$ n3 f6 `# H
+ B5 o+ h- J) h T1 Iset-current-plot "Trends-of-global-reputation"
" K5 c. ?. U: i2 L* q9 e
7 @0 ?) d- Z/ H* [set-plot-x-range 0 xmax2 |8 n* y8 ] V
* O$ A) g/ e* t4 k& O" vset-plot-y-range 0.0 ymax, j) s3 e$ k, B7 K* p" C" W2 g5 K8 Q
end
5 V! O" A% D: z, B* r9 m/ D
, l( |% x5 `/ L. ?1 \0 Yto setup-plot3
3 C4 Y& x- k2 K1 W" U
; y9 ?, y6 P$ P0 x E2 Sset-current-plot "Trends-of-credibility"
+ Z( t5 x) U* U( ?( l
# f0 H, b: Y. i; wset-plot-x-range 0 xmax
y F, z& J" Q2 E- S4 [
: k4 E+ f/ U) g! H* z0 r J1 w( {* Iset-plot-y-range 0.0 ymax
" o7 k+ F( m1 b# xend
: Q7 z& e7 w% W- G: O3 N; p. ]7 L1 l" }& Y1 a+ ?3 I+ M
to do-plots
7 Q5 \. J. c# B- u; @- \, m2 v7 c( Oset-current-plot "Trends-of-Local-reputation"
5 N" m) U) T0 oset-current-plot-pen "Honest service"
* d' `- W% [; f) m: H# j5 Iend
8 N: B; ?5 }6 P8 @0 p1 g0 g, t* W# U9 b% z3 }4 Z/ l( `- M
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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