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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% K7 i' `2 \$ K5 ]+ m4 n
globals[# G! e! I& _) S3 s5 Z8 k& f* Y* j1 {
xmax. g( T+ K# U1 C8 u2 P/ p
ymax4 z9 b9 C4 r/ N6 I3 y6 G4 w1 d* p
global-reputation-list4 j b1 k3 _2 Z8 n* ?1 u" H: D3 Z3 Q
. ^- o/ o- O4 W& O7 n8 x8 G" H, D;;每一个turtle的全局声誉都存在此LIST中
: A- Y& e2 b1 w* j8 P0 D# X. e$ Xcredibility-list+ @9 [5 C$ W- C& b) w! A1 W) {- M
;;每一个turtle的评价可信度
8 H/ I& o1 i8 V- o @+ ]0 I0 w+ \honest-service
3 g5 a5 X4 \' C6 Punhonest-service
3 n+ Z/ B1 c6 [; Q0 f4 p. ?4 ioscillation$ `* Y/ l& s7 R6 Z. B7 `
rand-dynamic( a. `& ?/ I. q
]
5 ]& @( O2 U' a9 J/ D6 ?* R6 g% l! ~- L8 r* q' n: v: w8 ?
turtles-own[ G8 G/ X9 h; S; g+ x4 `% F
trade-record-all
: |; B4 C0 I6 u- S+ @' J. E;;a list of lists,由trade-record-one组成
6 j. s9 v4 c ^trade-record-one
* n' P9 D' _1 G;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录$ C- k: ^/ P4 Q8 N$ s8 \( u( U+ P2 n
3 ^8 a+ ^& j6 V) s* h# K
;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
5 z T F2 d" x# ztrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]1 N1 j- b5 Z( Y' p$ |
credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list* H: [/ p5 \) P* {3 I
neighbor-total/ Z+ W. \! S! {+ ^" d8 o% x
;;记录该turtle的邻居节点的数目
' U+ ^2 l; P+ e0 Z5 v) ntrade-time
1 N& E F% ~" O+ q$ E;;当前发生交易的turtle的交易时间
' A0 X: a, l' k7 C: Nappraise-give
* t* b. s2 S+ R6 o: ?3 f) i;;当前发生交易时给出的评价
+ P' _7 {& j" F; U" b! C- Qappraise-receive
9 t( F; R5 W- D6 f;;当前发生交易时收到的评价; \1 C. }: W' h
appraise-time( e5 m. q& ]8 q
;;当前发生交易时的评价时间
) E; F3 g3 B8 o1 ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉, k! d6 E2 z* v! R7 ?. O
trade-times-total2 E0 _" b) X4 B* p7 i7 Y6 |
;;与当前turtle的交易总次数! S3 c9 a2 m* k6 x% I( V7 r e2 o
trade-money-total
1 U6 N1 l! E) D9 }- e6 O7 U- C;;与当前turtle的交易总金额
; P& m# S& C4 @+ N! O, N2 vlocal-reputation6 i0 y! o2 O! i0 T1 h
global-reputation
. B4 `/ f0 P2 B. \credibility
9 {1 Z, v5 f5 N;;评价可信度,每次交易后都需要更新
2 @/ i# Y- }2 }7 d7 r6 ocredibility-all$ \# A* r( ~9 z5 z! q
;;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
: x) f0 h+ h2 w$ [" r
9 B+ }- P( A- U3 s;;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0.59 o5 `2 ^8 d! o
credibility-one
& f, |; i0 T$ g& M% ^* A;;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
7 z+ I- G( b/ o: Q I9 Eglobal-proportion6 }: E% A. F" ]7 t
customer
$ C$ N. y% B7 ]* Z& Dcustomer-no
5 r1 C# y4 H$ Xtrust-ok
2 a! m- |8 r5 a6 ctrade-record-one-len;;trade-record-one的长度: a6 z- X' |: f7 h7 c6 X
]
8 i/ J9 h6 f; }; v) [ g ]8 h8 l5 |; }. H! e. y
;;setup procedure
) `7 c! a7 J" L3 Y, U! F" F% ~
; i5 N1 _6 ]* \" \to setup
3 A* e* H, e6 R- B4 r$ S! B
$ U) K+ W `( i; P; Jca0 e' j6 F- L$ s* \
D$ [( ]7 J; H
initialize-settings! c/ |" Y# ]- D5 c. Q- Z: a: D' o
+ b S( r5 h% k8 `
crt people [setup-turtles]/ P2 r, u# u* k4 \/ L( m
4 i% U! l: _7 \8 jreset-timer
6 M) U9 T! x) o3 b% C4 z* [
) X$ a8 a+ M. g$ bpoll-class- W( t. F: ?; O) `' H
1 S, ?. y7 W p
setup-plots9 A3 b3 e% s" J, K1 n4 U2 ]2 x, `
{% O7 }2 ~' W( k, Odo-plots& Q: r# A: |- ^& T3 t; n
end$ g9 B: s0 v" a" f. f' k
& G. o) E1 _0 q, gto initialize-settings
! X0 ]- m% P" w, e5 b# R- O! e8 _
) \- L( }5 @8 D9 |! U2 U$ v! [6 A* jset global-reputation-list []
6 I' J0 E$ [# A2 r- f3 M3 l& `* q4 ]# \" `& R6 T
set credibility-list n-values people [0.5]
' p$ s. D& U+ X# c# D2 X, C- p) X( d' _8 \: d* s+ J
set honest-service 0
' `- s6 y6 F1 I% f- H# _9 o4 g1 b5 r9 p& v; b- Y
set unhonest-service 0( |1 N5 h4 d) J8 x% @& L8 E h1 ?
$ r; v8 z) U; t) u3 ?set oscillation 0! k. q" K5 e( I- l" A
8 w& ^1 L4 L: L- bset rand-dynamic 0$ l$ c0 j6 ?+ a
end
9 ~3 p1 p* d; `
3 i1 |5 e5 K9 q( d' Q) rto setup-turtles
' h3 c* ?6 k/ n1 ]* Pset shape "person"
2 T4 X$ ?* H2 W& x* `9 \2 v& C$ Qsetxy random-xcor random-ycor6 j5 N, f* J9 R; A' ?: e
set trade-record-one []
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1 U: a/ z0 I% @4 Q5 |4 qset trade-record-all n-values people [(list (? + 1) 0 0)]
" r( s Q1 K, r9 \
# I9 Q' j$ G& g+ b; t9 Yset trade-record-current []8 H w0 J4 P( t
set credibility-receive []& I6 F" _1 ^6 G3 h1 [
set local-reputation 0.5
0 X# B, Q- d# }" P+ c* M5 zset neighbor-total 06 F3 g# Y; u( r( H+ S" C, o5 @
set trade-times-total 0
3 ^/ v5 z3 e" z, O4 yset trade-money-total 0
0 U/ G( ~* C% Q# r! u1 x7 h) T" u& xset customer nobody
- m u- H/ p& q+ i5 W$ C& S2 Kset credibility-all n-values people [creat-credibility]
1 s+ X0 Y# [1 q5 dset credibility n-values people [-1]
. t M9 h2 l% R" t/ K# ]get-color
$ A7 G2 {8 f$ H9 q8 J$ R5 |( ^5 ?: G, B# g$ z" O' M
end- O: \" O+ L8 S6 b" X: a7 J+ A
: b' D3 R3 X+ T- S5 j6 ?/ x. E+ A
to-report creat-credibility
% Y' K# P% l& l9 r8 E- [report n-values people [0.5]
1 X6 X; J/ E3 F, N5 f: Bend% G% J9 O# H, P; s
8 {2 K* I) N9 U. V7 z, _# S- N2 u; u H
to setup-plots$ ~7 z7 z( ^- k1 o( \- @
$ b1 K& R* f0 Uset xmax 30
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3 u7 Q, n, T; b0 a% Cset ymax 1.0% V7 A+ E6 x& i
6 _3 d# d" v, `$ r3 D+ V. kclear-all-plots
& a6 Q7 j. G' i0 r7 l: s' U( s% D- i1 S) R( h4 Z2 M3 j4 |
setup-plot1
3 @9 q3 X( O9 J8 y% X4 d. |4 h1 ^1 c/ k1 c, p r
setup-plot2
+ n8 R! G& L3 J. j* l) U
- O% I' ?$ o7 u7 B/ B/ T$ usetup-plot3% J( q5 }' c( ?
end2 T e! a0 i+ m4 ~# h/ z
: V- f% d# ]3 K! {) m% h- A& W;;run time procedures. l( i! d( U4 z Y6 d
, p) m, g. J3 u' f; y' f/ qto go; ^6 e* n- J% b0 o% T+ y
5 O5 ?( P/ _, @. s qask turtles [do-business]! M2 m, b( K1 J' Q& V6 z9 o2 n
end. X# z# I6 S9 q: ?, j8 R2 f; P
, e9 y' ?+ E' Y. y, W, w2 m
to do-business
4 P. N. f" P; l
& T# f" \( M }7 ^8 I* L# ]9 {6 C; E* ` T3 c i s- D! O
rt random 360
2 b; s; E/ G1 H' A. @# P- L- ^* Y; y3 m; \
fd 1; s; N1 o: U' @7 \5 {
y7 r2 K4 D" M8 Cifelse(other turtles-here != nobody)[
4 t: `5 \. c4 x/ o
! l# Y8 v( v! ?/ |1 h0 d/ B! W/ mset customer one-of other turtles-here
' r1 L2 f$ l) Z7 d
' K: h7 {7 b" I) a5 ?7 A U+ u4 e;; set [customer] of customer myself7 P' z& U3 |' b* W
% I, h) L0 u$ S6 p) U+ t \set [trade-record-one] of self item (([who] of customer) - 1)
b w- z, l1 y0 e! Q[trade-record-all]of self& z8 ]! C/ c/ n+ W6 X! ` e( t% g/ W
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: q; t% V8 v* y! W! g1 U# L. g% z! H9 }/ @0 w
set [trade-record-one] of customer item (([who] of self) - 1)
5 N8 |- y6 ]: b. k( |+ B& r[trade-record-all]of customer
2 P$ x& A0 p1 Y. @; [7 P: T& [+ q- G
set [trade-record-one-len] of self length [trade-record-one] of self
. m/ i7 Z5 Y# ?% F# J) y
2 H3 H" L7 N/ W6 cset trade-record-current( list (timer) (random money-upper-limit))
4 W+ Q1 l7 ~4 H0 n8 e; r
2 Y# T1 ^1 C/ @ask self [do-trust]
- C# q& {: p) j! ~- V/ C;;先求i对j的信任度
: a# \8 f& r/ Z2 e; v: n' ]% D y" t% A; Y7 G, W! b; X/ n
if ([trust-ok] of self)
% G7 r1 J& Q; c {. l. G+ @;;根据i对j的信任度来决定是否与j进行交易[
# Q8 Y. d! K- Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! @/ n% g( K H2 l1 J0 {! k( ~$ {% Q1 Z, B. T; a
[9 S# Q' \, k0 g& ~
6 G) y: U; }+ C9 T0 c
do-trade
1 d* v/ X: e- U. D. y- a* y' P3 z- T
; a: K, E, m% Z! M- ?* I! ?8 ~, Y0 D( }0 R" kupdate-credibility-ijl
1 j3 R( x9 S% j
" o# J( c% ^# T P/ p7 Xupdate-credibility-list
/ a( A% ]( B# t4 l% v" |$ A; o* L6 a4 p) h* ]/ E- X1 F3 H
, \5 w0 a. ]. @) e" }# H6 f
update-global-reputation-list
5 l" p/ R8 x* v F" L- D
1 r9 T( H- D! `poll-class4 |1 A! q) U6 u* w! W/ D' f$ {
- k$ C6 L% u$ e4 E' ?/ K; Sget-color
/ @# S4 x3 {8 b7 \% j6 z8 S5 g4 L6 [9 M) F$ W* ^, T# o
]]; E+ [8 o. F1 y% o
$ z# R3 d9 e3 y& H, V
;;如果所得的信任度满足条件,则进行交易
7 f% f, d. b3 x% X
6 q* w3 N& E% U: S2 A[
: B2 ~* a" A4 e' a+ C0 E9 z& R
: T$ |) `% l/ R) o8 G2 Xrt random 360& R/ D+ ^( e) @6 ^; h4 U
7 w* \8 X5 `) d3 A3 B$ |6 R
fd 1
2 n7 a0 Q2 F4 k- w6 M
, d8 v+ A% Q5 Q) F]
4 U) Z5 M. D% O) a# s* G; Q) {3 C( `! _
end( l, C, D+ K, ~: r L
5 A3 i1 g2 m+ q) p: U$ ]to do-trust
* @0 @8 U. C5 t) H( S+ q. sset trust-ok False& j- z# P7 v5 |5 ]$ K. q
1 H% l) B: m8 v* ?* d$ Y' w+ Q" i$ ~) U! `
let max-trade-times 0
3 h' l( X; Y: D9 Bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" G5 ^4 W/ l* Z6 Ylet max-trade-money 0
/ P; b, Z$ K7 b" vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
% g" l7 Y. {8 B+ Ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 U% c9 w. I/ g p: U
6 l) ?5 g) G: H6 Q
. @# @& V6 @7 Hget-global-proportion
! i# p$ P8 @# ~6 ?) [let trust-value
$ w3 }. `$ M1 F. P! c1 s! Z. b* o3 M# nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
) e7 e: ~) F; W" t+ R' G1 Tif(trust-value > trade-trust-value)* p8 K& [, J. J" X k
[set trust-ok true]' K; ~5 O* [! Q2 U4 v0 C
end
1 i2 N5 E/ M7 U+ F3 C
( v' K6 N! s( N9 a* rto get-global-proportion' \, |, U/ U: B( n; s w# _
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 d) I1 {- r. S `1 R[set global-proportion 0]
0 `0 W. [# z" ?& F[let i 0
" c8 G- q- [. @# A2 `) N4 L$ B9 R+ ilet sum-money 0
0 k! I$ h( u" A+ c8 k. L1 owhile[ i < people]+ [9 D; B* [8 J0 K- Y$ z
[) K, W1 W* [2 e: d; i* Y6 B8 U1 \
if( length (item i9 I Q/ K5 k( n/ u
[trade-record-all] of customer) > 3 )
8 l: {: X0 }0 ?6 f. m[, i9 N3 U* @# s) r$ ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: q5 J1 o3 b8 A& y/ s! s3 h]
5 c* S$ z! ~6 ^5 R. w; n E]! o8 L6 g; z' O3 W. T) g) p- u
let j 0
; ~ e! ^* V. Q ]let note 0
' i, ~/ e: n: e4 R' Lwhile[ j < people]9 O/ U' b( ~) Y! f
[
6 A1 X. q9 o8 Mif( length (item i
3 W0 t( C# ?+ z c/ l! F[trade-record-all] of customer) > 3 )
, ~1 D5 \- X6 M; u[# V: O' M) ?! ^1 H F
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ D+ {7 R: T/ ^! j; X* H/ t
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 c8 ~( y: a. b* k9 U2 e% G: O
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- m4 ^+ K" a6 p( t* n7 M
]& J6 P6 o3 Y, I/ C) I7 W' U
]
9 f- O" J4 @' nset global-proportion note8 [, O$ z% W+ c8 }; ]2 f2 q
]/ F7 |* f, n6 Q3 i6 F
end
% Z) ^2 l3 [" t# K. J% m! z5 {& y* c
to do-trade
5 S' m2 i; v8 Y5 @;;这个过程实际上是给双方作出评价的过程$ w7 @, z& t r5 x+ l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 \5 r) c! E$ x) r# Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( D1 _& x* r2 t/ ]set trade-record-current lput(timer) trade-record-current- F$ g; M i: R" l
;;评价时间
+ i" C" ]7 T$ aask myself [( ^& a* i# Z% s8 `) h A1 I
update-local-reputation* a9 `! G8 k1 i; U: K3 e6 y- W" {
set trade-record-current lput([local-reputation] of myself) trade-record-current3 v6 E0 }9 z5 w# M
]
j/ |1 e+ B9 _/ dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 I( |& P3 N% \* ~/ I0 K;;将此次交易的记录加入到trade-record-one中
n, [- K) B+ G7 H4 r# P9 f' `+ @set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 o! z$ I8 Q# K# l3 Y/ f. k* u- `let note (item 2 trade-record-current )" v- H; @+ @) b8 G6 ^) K! s3 f1 ]. ?4 v
set trade-record-current* i7 w8 F7 e- @9 Z! [, a( ?. m
(replace-item 2 trade-record-current (item 3 trade-record-current))
" E4 \5 r/ J! J' x0 pset trade-record-current
: s k8 ?6 ]4 ~! p* `(replace-item 3 trade-record-current note)! q9 \" k* ^! I- y
/ g& Z* w2 |' Y9 `) Y& \. c
) }! {4 g; m$ z H; m# K3 Rask customer [# o' ]& j' u+ f
update-local-reputation
. w; o; a. z- ^- p7 ]: x/ ]set trade-record-current
% ?3 O% p! n+ J% n" Y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
/ h# P$ l: W* k% |1 d1 H6 b]% S& Z' D0 r. H
6 g4 ?5 B9 v: C
4 E. @) |7 g5 d* h9 l/ [+ e1 O2 {) z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" ~2 k- F- W- `4 q9 w5 @! f
9 X, ]5 o+ ^5 q& H- E
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ [9 r5 I, O4 K J) h! f; k
;;将此次交易的记录加入到customer的trade-record-all中( W" o# A0 @/ d F! a# G; I6 c$ e
end
' w1 F- K1 ^* J8 u9 b; V" b) Z/ {+ s4 x2 w( x4 M: d- ?! {! Z5 A
to update-local-reputation
! O% F( A* s0 Z, kset [trade-record-one-len] of myself length [trade-record-one] of myself
8 `+ v* `1 L2 D7 {9 m/ ]/ j6 r7 o# X# |5 E4 l7 @! n: s; k0 p
8 W: u) h4 \) v. F;;if [trade-record-one-len] of myself > 3 ' f# l' N `) ]1 q
update-neighbor-total
; ~* R! B2 z0 N) H( {9 ~* x( x. r;;更新邻居节点的数目,在此进行
8 r% l. f1 E" T9 Alet i 3* V4 F, f4 a: U
let sum-time 0
( x$ ^% V$ B! b) I# Fwhile[i < [trade-record-one-len] of myself]& {# Q6 \) @( _8 m; d9 j
[
; c9 i6 W" O+ @& R1 L5 r. _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). |3 q* y# u: ^
set i" d) K7 A. U, u9 ~- f
( i + 1)7 I5 a7 h9 K1 D
]
, E6 y/ f1 Z n$ Plet j 3
, ^4 y$ F0 s7 f5 y( Elet sum-money 0
5 V0 }/ Y- x& a3 hwhile[j < [trade-record-one-len] of myself]
* T2 w! [: _* ^# i% Q3 s5 D[8 x: E4 X2 M B* w- o
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)
[- D& q) t8 m5 f+ F: lset j0 w3 D/ c/ H. o4 k' }+ P; J
( j + 1)
" j; b& \4 o! R( I; v) t]3 w {' I* ~* ]: V) E
let k 3
6 A) }# K2 q8 ~! q3 jlet power 03 n9 Q1 @9 {9 z) I! ^1 o
let local 0
1 X0 B0 w/ T% K- X( L: B) Gwhile [k <[trade-record-one-len] of myself]2 \3 _; c9 s8 E
[8 S/ h1 ]: s" r& c+ J% Z* c* o
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) 3 D- ]4 N: l. @ t' ]4 p: V; X U" f
set k (k + 1)
3 y/ f) T4 v0 X8 n5 i: W) \]
4 g- q4 F% U4 j. p, T8 U! \ ]set [local-reputation] of myself (local)
: r ?+ ~* E: a# ^end
! W' I' [# ]$ u; d& d u1 }6 c7 z/ l7 G/ p8 ^* P' B& S) R% Z
to update-neighbor-total
; M1 ^6 T$ S, z# @8 i5 E4 B4 _2 |1 g' b& W1 @4 w8 ?
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# ^* B1 i+ x/ p$ W% x* O
+ E" R( Y7 T5 I) P* r
3 \2 P2 B+ r- |end
% Z$ l, \+ ~% b9 F
& W2 w: n7 I1 p3 ^to update-credibility-ijl
, [# U% w. U* m8 |1 S2 ~. e! X3 l+ ]& Y8 B5 v8 O3 S$ ?
;;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 z z$ u+ J9 m' u7 z
let l 0
0 _- y9 J5 {8 k V/ r) Dwhile[ l < people ]
* p' n6 C$ K1 D s3 d o9 Y/ u;;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
: ~* s+ x+ o2 w {: y) z' h[
) ~8 Q( K+ o8 M8 C) b' nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 ~* d+ ^. Q7 q) b3 @ B
if (trade-record-one-j-l-len > 3)1 I5 j$ N) F( a( o1 f* e+ n( 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-one4 E d) o8 @ X
let i 3# H3 F$ f: { F+ u9 f# C
let sum-time 0
% z, d9 c. F8 ?; Qwhile[i < trade-record-one-len]$ ]: x6 j$ t8 d
[3 ]) f9 Q8 @ g' y% l7 X6 G$ [1 D1 j
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ v/ V. v0 p$ E' N1 v8 w3 ~
set i3 k0 n: F8 ]1 M2 @- F
( i + 1)1 n; ]5 q' z( T+ A3 N7 x
], P- `" Y$ E4 G% `
let credibility-i-j-l 0
: G6 p# z" W4 Q2 x# X& `0 D( D# w;;i评价(j对jl的评价)5 ^( m2 ~5 t' O1 _# k
let j 39 z. X) e, Q9 h8 m8 z# _
let k 4
: I6 k4 m3 E" ?$ }* ^1 wwhile[j < trade-record-one-len]
' P( a9 ~/ P( v) J: z: n& }) a[
, t' G1 U4 f: i' o5 m- O @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
2 V" F: H5 Q0 k1 Q2 K# bset 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)& z7 o1 s- K' |* c5 M; c) [
set j
4 f$ j3 a( d1 G' C( j + 1)5 u2 U+ V5 Q' w0 b2 }* V; h
]
: N/ t- v; V, I. K% V4 _8 Sset [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 [8 ^, ~ @8 L( |
$ L4 z' O" B7 j0 T" T, w
7 m, F- I) n6 R% }. Jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. M; {( }5 X! ]- Z;;及时更新i对l的评价质量的评价
j' d2 Z; | }4 H0 l: jset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" o/ {6 C1 ?- ~! A2 Z# c; iset l (l + 1); i# f# t1 ^8 P
]
+ K7 O9 ` U" V8 K1 B; \7 Dend0 h" u/ L: f# W F) r" A/ p
8 Q% D1 `8 P+ F! Bto update-credibility-list
* J2 t' R/ g: Blet i 0
$ Y$ D! O# o! ~* C6 { Lwhile[i < people]+ ^) B" _* V l+ o3 b5 b3 V/ D
[
0 ?/ ^: l7 j6 c' D- H Elet j 0
' F" n( w" p4 Clet note 0
g% T8 c, B' Plet k 0
& S& F" g2 a& V7 B5 u" e;;计作出过评价的邻居节点的数目
3 V4 B9 R" o9 J* \* b2 Zwhile[j < people]) _; p4 J9 m! B1 v1 ?+ D
[! F+ `3 l) b+ L; e; h( G1 g
if (item j( [credibility] of turtle (i + 1)) != -1)+ U/ k0 R, u8 e E9 [
;;判断是否给本turtle的评价质量做出过评价的节点
- ?# e( ~6 |( Z M! z2 w: l( w. j[set note (note + item j ([credibility]of turtle (i + 1)))+ \- V3 W6 o% i$ s
;;*(exp (-(people - 2)))/(people - 2))]
# l/ |- f' U# F+ r9 u' ]set k (k + 1)4 \* W$ k! j" c3 |: [" [1 o# P
]& j5 d+ Z+ l" N, s0 A8 u1 V
set j (j + 1)7 f* c/ b! h1 f3 E6 m* H c
]0 o: Q* s% M, }5 \ a
set note (note *(exp (- (1 / k)))/ k)4 f" l2 b4 P$ v8 O/ I" F2 ~1 b1 M
set credibility-list (replace-item i credibility-list note); v: c; \+ R! h: [0 ?+ L8 a" V6 N
set i (i + 1)! k: e2 _$ a3 W+ A! x
]
2 `8 G8 w' b* d8 ]4 ~$ Y3 Tend
6 v, f- Z8 O: H3 [! m
/ F8 Y% D! r2 \* vto update-global-reputation-list) t' D3 ^2 r1 [# }+ w# [) x8 R+ f
let j 0
3 J: h: }# m* i# |! ~while[j < people]
0 X, S. g$ A3 o% v2 g q[
1 M- K$ i& |# N( `$ rlet new 0% Q! g# K. ~0 r* w* Q
;;暂存新的一个全局声誉& [% R1 v4 _7 j$ }
let i 0
$ [! b' A) S7 e' T* ~( u ilet sum-money 0
4 z4 q8 I4 m2 N8 t' Q" A5 Wlet credibility-money 0
- E. p. Z: b( {while [i < people]# O4 y5 V m1 y T) F- s2 O
[
" Y) u3 {) U# q7 G4 P3 O/ Yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ H8 W- ]! r8 C/ ] H# E) Yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ c$ e, a) j0 m( F. M4 M
set i (i + 1)
$ t; k" ^; w) b& H]
, m9 Y; w# w1 T9 B+ Q& blet k 0
/ ]5 b* W8 ^% [let new1 0
; \$ E ^6 f. }2 n8 d7 iwhile [k < people]
- U9 s7 l" S" N m( N[- u8 k& v% S# h1 k- M" u) a
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)2 b9 u% p8 X; O7 R$ A
set k (k + 1), A0 {/ C8 A4 w$ U) C+ s: C" ?* B6 t6 l
]
7 a( d6 N; U5 y6 d/ I& aset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * J" B0 X( G/ w, b) G4 N
set global-reputation-list (replace-item j global-reputation-list new)
5 n# B2 v( T4 Y( y+ P tset j (j + 1)9 G) f, v' Q2 ^/ W- w$ t; H4 Y
]2 l2 v' T# G: Y6 t$ x4 ^2 e! r
end
0 ?2 ]+ B6 k6 Z6 x e0 u8 ]& b/ n
" [ Y$ S3 S7 M( P7 ]% }/ k
! k1 q+ K' @4 eto get-color
" e4 i- Q9 v! [( Z' Z4 p- I' Y' C! M p [, X
set color blue
" `. @' N2 U6 u3 Send
0 f1 Z v: ]$ H# b+ A8 ?
3 p2 E4 ?9 y1 }to poll-class; Z' X4 T" j5 ^6 M: a
end) M# }& c4 \5 q* j1 Z8 l
2 ^1 Q! k+ ~9 i6 O3 j. F6 O4 O
to setup-plot1
7 m' q3 P6 |1 o$ K" f
: l( t/ n9 w' Q: t) d/ F6 N, m) m tset-current-plot "Trends-of-Local-reputation"
/ o: v4 J' @% p7 y' Z
9 Q% r# ~' ?; N0 L7 @/ C3 u. q& b8 Zset-plot-x-range 0 xmax
0 J* Q- r" {2 p" f+ i# l/ {
2 N) t. M: a' P: U; W; { }set-plot-y-range 0.0 ymax2 o/ y: F# q6 p4 j
end
( w8 U7 c. e0 n! h2 [$ T# I9 L N+ f7 S+ _* F: t" J
to setup-plot2
0 y& L! j8 B# T4 I; e
/ c/ J4 T# [7 O8 l- E4 Hset-current-plot "Trends-of-global-reputation"
9 T. X3 l; d3 }. s5 I
: H% _6 h2 d( k3 U7 Pset-plot-x-range 0 xmax+ D, }7 d0 ]" Z% O3 { j1 f8 E, P7 \
7 h* n1 ^* @" u. |5 E' y& s
set-plot-y-range 0.0 ymax
9 T: {" W4 U+ ~! |' R" z5 d9 ~end7 n. a& C2 F5 E
7 x8 | q; e" D! g8 G3 m4 `' Q9 Bto setup-plot3
, ~. V! P( T Z* c: p
+ p5 Z6 X: B+ B% h4 T2 zset-current-plot "Trends-of-credibility". i2 r. e% q2 r# n
* w" \; x2 J( E+ g) b$ C
set-plot-x-range 0 xmax
! ?: V; S: L$ m
9 ~( j) f6 f' F% }set-plot-y-range 0.0 ymax; c2 @# ^2 |7 g) ` X# | _5 b
end* T) Q6 h5 W/ l; A. }9 H
7 j% \% I! W8 J5 t& @
to do-plots
1 J7 Q6 t9 D$ U, dset-current-plot "Trends-of-Local-reputation"
9 f) q( M* u3 H1 q) g' jset-current-plot-pen "Honest service"" z3 O1 f5 p! V4 ~! A0 ]' m
end9 u& s# I. T/ H h5 p* x2 K8 |
0 Q$ |7 m; o% p8 l% c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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