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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
* O5 S/ X9 v# j B. o( m' n9 ]; Bglobals[
) Z9 P: s: s- E/ l( q) kxmax
{2 M2 y: I/ C1 I3 l$ Symax
! E f0 I" q# Z' _4 Tglobal-reputation-list
* b1 r: I1 q* C2 s3 S4 |7 C9 a3 f2 B% I( Q+ S& |, m M
;;每一个turtle的全局声誉都存在此LIST中
* K, p% u Y0 b" K, ccredibility-list7 ~+ Y1 Y, B' {6 }, D; Q4 s ~
;;每一个turtle的评价可信度
4 ]& ?6 x2 h% Ghonest-service5 }6 e" h, f* V" i- ~: |
unhonest-service
8 R/ q7 Y7 g0 {oscillation4 l2 `, x# ~1 c; i# N3 p' z3 {4 E
rand-dynamic1 `3 y! n x5 S5 E8 Y O0 ^3 b
]" t' E) ~) a5 S' k, R) S, M8 N+ i
_4 E# K& n- }turtles-own[
4 H& Y% z( s- qtrade-record-all0 g% u' I5 X# V8 }# C
;;a list of lists,由trade-record-one组成5 l& Q2 B# B! W
trade-record-one" c4 S2 ]% _6 z3 @' }7 r# Y
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
' d' g1 S7 R* x2 o5 W/ n4 G! I7 w
;;[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]]& i( l$ g6 r+ D5 h3 _9 C0 r
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 Y, Z- [, ]" P5 |- o2 vcredibility-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 g0 J. z+ r# M/ j( J# f1 v9 }
neighbor-total+ i% p) ^; l5 b' o5 L) z& M
;;记录该turtle的邻居节点的数目# I- @, X% r+ e
trade-time. O+ T; w; b: O: {0 O1 u+ C
;;当前发生交易的turtle的交易时间
5 P: e; y& ~; T6 Uappraise-give" T; I# g5 \: Q0 ]2 M$ [6 y0 w
;;当前发生交易时给出的评价" E8 |+ `5 \6 u1 C" _* b
appraise-receive9 p7 U4 Z+ ]6 q1 m5 v
;;当前发生交易时收到的评价
% R# b, Y7 [' L$ [$ F1 t7 vappraise-time6 p* |2 o8 H2 O% i4 _. ~! a) i
;;当前发生交易时的评价时间; U C$ H8 q. B$ W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: H3 n0 K" T* o, o
trade-times-total& T/ {+ b4 ~) n; h& Z3 @5 X
;;与当前turtle的交易总次数" I/ P' l4 `0 l9 a/ r% S) L( u
trade-money-total
" d/ x. W4 G8 D5 _, U! {4 i;;与当前turtle的交易总金额8 {0 ?! ^" ?# w$ H/ z% h
local-reputation& K& \9 ]. \% p% T* G
global-reputation
0 b# A6 V: ]. |2 z1 [* w" Acredibility$ a6 T, E8 t& i9 G! ^; E5 ?; W
;;评价可信度,每次交易后都需要更新
* }8 k7 K. d |, m- n9 l9 t' Jcredibility-all
" y6 [3 N. d! H/ n8 X;;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- A* ~( y8 J T9 U5 h D1 w; `; q0 Y
;;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
4 }6 c* q; J! H1 }% Q0 M: Y% j# Icredibility-one" d1 E& O3 ]% l5 z
;;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
# R2 Y7 _3 p) `: |- w. b2 _0 Xglobal-proportion
: F6 T0 ?( i+ s" d: Jcustomer0 p+ q9 z, _! G3 i
customer-no1 M# H, t% N' |5 l
trust-ok
* [1 t _9 |5 `trade-record-one-len;;trade-record-one的长度
0 p6 e3 X* p- U0 `) ^( W! Q) s- X]) _% r& @9 v1 s7 G
! U' V7 \( _! h$ M! ?5 u$ V;;setup procedure
$ L/ t4 h& Y9 ~* P; q/ q9 k$ F, C
to setup
, x4 I8 l& ~ J$ @! P" g' x3 o4 t
7 F2 S* f1 H( Y7 i Zca
2 q4 j" O/ i3 y8 c% \0 z/ F! [% H0 N# z7 ?$ j# R* u2 ^
initialize-settings
# B0 w2 W: q( K1 W/ d# U3 V1 }; X! o0 d6 C6 A" u
crt people [setup-turtles]) u: K L9 H6 ~* T
& H- |. Y" A$ V T" V
reset-timer1 @) J6 V% l3 j: r
) T0 t. C9 x. V$ Y$ H. }2 r3 D4 d
poll-class
+ b, @& Y6 R& ?+ j3 M0 f& u. l
) y: A: L# E9 {9 C4 P0 csetup-plots
9 I/ |/ v( f, C$ J
4 C8 \+ A' Y& s, A5 X: t; Rdo-plots
# T* l1 d! k6 v8 D2 nend) f# y. A/ k, H( M' h1 \
$ _* } L0 O0 b4 s% K$ {6 S; ~
to initialize-settings
; G0 ^, a! f( c8 Z1 k7 V+ }: T, X8 h" x' [- _& r
set global-reputation-list []
8 I8 G1 @1 L/ U) L! }3 E( P' `1 n9 n F8 v
set credibility-list n-values people [0.5]
3 m+ x5 J1 W% u
0 M4 \( b" d2 v* g2 E* ]! p6 S4 _set honest-service 04 h5 T5 L. K8 Q) u6 |
& |# _, c6 B2 t# _
set unhonest-service 0
8 q- X# N5 t7 C8 R3 [
! i( k; @$ X4 d- qset oscillation 0
8 b" Y5 |. E& l6 I( K' _+ `+ R' t& d1 u( E
set rand-dynamic 0
2 b+ k& |& m( y. E9 k& H- c4 K3 Mend, L. E% \* @9 U+ `
\0 }0 n( Z8 Hto setup-turtles + h) }- [& ]8 d. V; a+ M: |. O) z" ?2 Z
set shape "person"
: m! y) J% s9 _* S) C! W" csetxy random-xcor random-ycor* Q$ g& {+ c* A
set trade-record-one []
+ I, j3 ]# X( R1 r3 U6 x
! z/ X( r5 h5 i3 W4 Q2 [1 gset trade-record-all n-values people [(list (? + 1) 0 0)]
# G) X! o; J# ^: e; O+ o. P& f ~! ~5 Y/ u" Y! O
set trade-record-current []
7 u/ b8 ^1 V# v* Uset credibility-receive []
$ N. m) l( L! Xset local-reputation 0.5' D! y @* S* z# Z2 {
set neighbor-total 0
# A" T* S; Y! G; O! rset trade-times-total 00 h( |6 A2 c3 d, U
set trade-money-total 0, q; K2 u8 v v7 Q
set customer nobody3 y. c/ X; \. _- `
set credibility-all n-values people [creat-credibility]! c0 y: ?2 G$ O, m+ `- d: U
set credibility n-values people [-1]
+ ?7 ~) S- T2 p. Y" wget-color
8 i# b1 b7 O: J5 G+ B, S
& p* [8 |9 h9 X3 [$ Uend
2 v5 T+ e5 {2 O8 D
% h4 p+ a- H, T0 ^to-report creat-credibility
/ N; H& ]- y' A0 Xreport n-values people [0.5]
! m8 i1 N8 W+ K, ^& K4 z& tend
3 P1 j9 U# v# D$ k
/ b. I5 |$ ~2 Y* kto setup-plots1 Q( z( A# d: y8 p( v* Y
+ @3 M" y& a4 r/ a( Q0 e2 ]" s, \
set xmax 30
8 S/ L& S: P0 |) [! I
6 W F8 c ^. v9 U" n) @7 y. Xset ymax 1.0; J2 k) H! J* F- D# X0 x/ e
' c) n7 J+ z* A* ^0 O- Kclear-all-plots
1 }& l; `3 T/ Q/ u8 A
6 q: E( \1 w& ~setup-plot1
8 x6 I! A" y) V/ h1 m. P
' w2 I1 D* E; b9 M9 ysetup-plot2
* v* B6 s% \9 T- G) i# x
, j' _# Q8 E, V" b H8 a+ Bsetup-plot3
, N7 ]2 S4 U. P2 Bend* x! C4 k$ [1 f6 R% P5 R; A
, M; X# l- H* X" L9 m9 x
;;run time procedures
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to go
/ P: f3 H4 c7 Z+ a4 Y$ ]* m; c1 _' R2 |
ask turtles [do-business]8 H1 |6 h" Y% W/ y" j' \2 k
end
# ?) ?/ n0 h! [
1 p- ~* d9 t8 Y, O8 {to do-business 9 V$ h$ R0 o8 T; j7 O4 Z$ N3 v; a8 _
9 y3 W. |3 c% _1 a0 f# i8 F. d1 V* D
4 Z% J7 r* k+ r( \! nrt random 3600 G. n/ {) D# [/ I, Z% b' e
5 T/ V1 E0 A+ j! f
fd 1
2 ^; J0 W! ~0 z# z( ^! |4 s3 K7 i0 o2 b
ifelse(other turtles-here != nobody)[8 I: Y. [3 y, r$ Q9 m
4 ]6 X6 b% ]4 u* W8 Q( gset customer one-of other turtles-here
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;; set [customer] of customer myself' M. s g. B: Q; n% T: j. A
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set [trade-record-one] of self item (([who] of customer) - 1)& ~4 y: }! {: K; H
[trade-record-all]of self; g& p' u( [1 @0 X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" A8 C; [3 f& q: i' _- T, [3 B+ {* a* ]+ S4 C0 I
set [trade-record-one] of customer item (([who] of self) - 1)
" { C- {3 c# t3 h" M[trade-record-all]of customer
2 K# j/ ` X& V% f- v
( \( p7 k( ~% i3 |set [trade-record-one-len] of self length [trade-record-one] of self
1 E2 I' M' q) q* J8 z
* r2 i4 c* k( b/ Z4 Bset trade-record-current( list (timer) (random money-upper-limit))
{% y5 L; k, i8 W7 S: L
" ~! Q% Z' r2 T& P! @ask self [do-trust]/ _! Z3 z) p/ b5 d
;;先求i对j的信任度% Z# r; X/ a/ |; g/ n
, V) T4 ^: e; u2 Z" V0 q9 p$ K6 Xif ([trust-ok] of self)
% I) p) v/ Y) K;;根据i对j的信任度来决定是否与j进行交易[
0 q% ?: ]4 S: B/ Jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& p8 q* ^1 c% j7 v1 w' T
4 s* S h4 R" S; \( G- \[
2 w+ ]' p0 K- T7 i- U
- k S4 S4 q: [* v; mdo-trade m4 e' n) G7 W: q6 ]
7 _4 T3 K) j. i7 u
update-credibility-ijl
2 O, V1 k8 N) G' A, x
1 ~* w! t# I9 z" J2 gupdate-credibility-list
3 R% @. u, l4 L& f- a# E; C) [4 l: ?: ^$ J
+ T2 ~6 X9 T9 w- i! p2 {3 |update-global-reputation-list' T- ~' g+ O6 L& t3 A9 a8 D% s
0 v8 `4 H) D. fpoll-class
. p0 T" s9 S7 I( R& G4 \
9 c& I& O* _6 {) s. f' x9 i3 Dget-color8 ^% a9 O7 Q2 s2 o8 b* o
$ b3 j6 W1 q2 ~( ~
]]
3 p G e1 [$ c: D
( Y& F) E5 A5 V4 ^: i;;如果所得的信任度满足条件,则进行交易
& |5 U. p% i# y1 j+ Y3 P( v' n% s: Y' w# y' J- M& G
[
1 Q" W3 t B, [8 D! x+ M, E+ E* A8 N5 v
rt random 360) N; l( q8 R$ K6 `2 R4 J# G7 q9 \" t
4 ]# ?. f" y0 _& U: J, I7 @ `fd 1" R* k- ?: Z3 }+ n+ U( [0 l
6 [9 `0 A; Y; {* E
]0 j) o2 m/ T6 ^. A/ C0 g
+ A/ E' H2 T9 f! {
end/ [2 s$ @0 b/ Z" F% m
' A& ^2 z. T! Fto do-trust x5 q/ P& |* F% I* T
set trust-ok False" H1 {6 \- h9 c) w1 H; u
6 U, m& `# V( o2 q6 A- M
; z9 X7 [: E' T F6 a% G' `let max-trade-times 0- _9 L+ x9 ]+ K7 J, m7 X7 R; r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 y: Z# c3 n( u' }7 n% i" O
let max-trade-money 0- V' S5 g2 |) L) l. o: [
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) _- W% X; F9 U7 Z5 P* olet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# m+ x9 p+ R5 F9 g" i' a4 z* O
8 ~+ n* @( g; J" n+ \& [1 a9 _& ?: ]* \9 _5 `( n4 X% L
get-global-proportion
3 ]# K0 u/ F8 i. n1 f0 }$ Y* {let trust-value6 G z& C8 E' L6 F% i, z" z* ~; B' w
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)% }2 D* |' p* d+ w, W
if(trust-value > trade-trust-value)
" ^/ [, B, ^( {- v; Q2 I[set trust-ok true]' l* s) A. d4 L W, W ^8 R! _
end1 {) E/ K" x" G& s* j
0 n8 F( G6 K0 @* ?& eto get-global-proportion
" S2 F( l" A1 ?; ?4 Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ J0 X; T' B+ Q8 ?
[set global-proportion 0]1 U7 t8 Q# g G1 U
[let i 0+ ^* i2 _" s P x# f1 t5 J4 B
let sum-money 0( {9 d8 O7 i2 q3 s
while[ i < people]7 a" G9 Y7 e8 G5 j, W: j+ d' E
[
( a3 n) h3 v4 y5 fif( length (item i
1 r7 @: [5 A5 b% g. a" o[trade-record-all] of customer) > 3 )
' e. T8 L9 n, {3 ~; \[
9 W7 p m8 a# A) p0 R3 Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 o9 A! s1 g0 U) G! j7 t
]* e% V+ f X3 \! N8 T: H& [
]
% s8 l7 }, d$ o& Dlet j 0; ]0 S3 u f+ `$ Y5 C# c
let note 0$ C1 p! w6 e+ |# t. g0 ?
while[ j < people]- m9 i! ~' z& c- L* o; G
[
" l( `) u' T, ^2 ^" bif( length (item i
4 w0 o O) B X+ `[trade-record-all] of customer) > 3 )6 T/ ?4 K8 w+ k E* v7 F+ D& |
[2 O$ o6 j/ r: Y Y' q/ l% ?8 A4 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 v* t0 H, j ^: ?0 w7 x
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, Z2 Y, I3 B- B1 w) i* O[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* a2 H* P2 n; A0 Z7 O
]" V! e( R' m3 W" b* N
]
* w0 m- ~5 u. O+ F1 D3 `set global-proportion note
/ [* A- F! t9 A9 \3 w: o]/ f E5 o* n0 r4 g. n
end' S5 X8 b# ?( f! b- ?
+ \+ a" D) D. c8 Kto do-trade2 w4 h: v! E7 G- t* s0 x) o2 \
;;这个过程实际上是给双方作出评价的过程7 A& b+ D9 y5 R; u' N* k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 q+ }5 b9 \8 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& S5 j8 B3 t( t2 M" }2 ?set trade-record-current lput(timer) trade-record-current6 `9 m* Y' m" j* w
;;评价时间
9 p* C8 a( S" V( s0 [) l+ w' E8 Fask myself [; r' z+ k: V, M' i: ?
update-local-reputation; s: `3 }0 g; ?
set trade-record-current lput([local-reputation] of myself) trade-record-current
4 ^; |# P* ^/ v4 w& t' z$ J& V$ `* I]& g8 l, ]) d) A4 m
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' q' u) k3 t0 v9 ~ d9 k;;将此次交易的记录加入到trade-record-one中
7 u* r! Z) d+ X# Z7 k, T$ |set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 d; K$ F7 h6 B+ ]let note (item 2 trade-record-current )
# b) i% u: w+ i8 n' ]8 R, e/ }/ G( Vset trade-record-current+ D) Q3 ?+ F/ a c
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ @4 v" _/ s3 t+ q+ l+ lset trade-record-current
: Z1 W5 [& V. D+ s* C(replace-item 3 trade-record-current note)
: y' `5 T9 \3 P- O
, v7 B" b* t* O3 q$ H( ?- O2 C' A
# J) y" o, G9 w' k/ Bask customer [1 K" o7 U4 @' _# b9 e
update-local-reputation1 w/ w6 N3 \! |, y0 M& O+ {
set trade-record-current# q: v0 l0 _# n! m( s9 N# M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * h1 I/ q' j* h) U! W% D: t
]4 N( ^4 R9 }% t! F" u
- @: t; X9 o8 R: R9 H4 n
; W, c/ g. R: [2 l% yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 K) r% C( E# P
1 [) P4 N/ S& i+ C/ sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! i( R/ g3 Z. s; j
;;将此次交易的记录加入到customer的trade-record-all中3 s, {7 x& I( Q$ h
end
* Y; R" j+ ~/ d( |; _7 L- X1 K- n: }: D
to update-local-reputation+ ^2 `" {( j5 t: j( G
set [trade-record-one-len] of myself length [trade-record-one] of myself
1 |/ c; v4 B$ Y/ _$ {3 z6 H& B( ]6 y7 ^$ _( e# T) }2 q& q( ]7 m
, i8 {' `5 j9 g" q# s) |
;;if [trade-record-one-len] of myself > 3
# G0 [6 c }5 Vupdate-neighbor-total) ^0 o9 q: K1 ?) [. G* r4 U
;;更新邻居节点的数目,在此进行7 k- M. U, X! r6 }% r
let i 3# m$ K* F# D! U4 I5 B( v' X& g
let sum-time 0
6 x2 R: I- t$ h% C7 I0 twhile[i < [trade-record-one-len] of myself]" W+ c7 e" w' }- I; ~
[
$ u' p# x7 i1 X1 Kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 M4 F/ ?4 T0 H- b! w
set i# J5 U( H' H* V/ `- ^
( i + 1)
7 e' `1 S; I2 Z" P4 N" I]
+ a3 d7 @ I9 x: u( [let j 3& F0 l& o; c" f( I
let sum-money 0' K e6 M: D6 ^7 g
while[j < [trade-record-one-len] of myself] x8 R4 W4 r+ G/ r3 E {
[
9 v" H8 V' `; y' 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)
: A2 L4 v# x0 I% Y+ dset j3 N9 L& B% q' `7 H; W* V$ g/ r
( j + 1)
9 Z6 D0 d5 g1 O& q]: W. y y* Z P5 u( j( t* V
let k 3% k+ M$ U) i) y3 c l6 l
let power 0+ H! [2 S9 L t; O: T' b. W* L
let local 0
0 W4 @; t% { j% T( f6 F3 X6 Jwhile [k <[trade-record-one-len] of myself]
; t" f4 `" L) |) a k! f( ^[, U6 E" g3 b" a4 b
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)
4 a ~9 e+ E' v+ Q9 F/ [2 zset k (k + 1)
9 O0 Q. B% o6 K; B! B]9 v/ {8 L3 g% ?1 y0 {( |
set [local-reputation] of myself (local)
- e( [- T k, c# t6 yend/ P4 O% O+ f* y# e8 W
% U* h/ H2 ]7 g
to update-neighbor-total! @. O" r/ h) L2 A
+ K: J2 t( }4 ~; M& s* X
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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# }; \2 o0 D9 D
end3 p8 M$ }$ R9 \/ }3 b& P
; B) @( ^ f: `" jto update-credibility-ijl
0 m3 U. [& e6 W. t" ^
% n: A' E5 E8 g5 \$ o. H;;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。
8 ^/ F4 D: I4 C) V& H% A* E( [9 flet l 0
9 v2 E3 f/ P Mwhile[ l < people ]; d% P7 Z% d+ w
;;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9 A) ]$ r, d% M9 S+ {3 U8 d
[( \9 G# Q! A z( c
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& Q7 _8 d, y1 t u5 M* I" m, z0 uif (trade-record-one-j-l-len > 3)6 [+ ~, n' C4 E5 {' g4 w' H( a
[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-one8 p6 `: T @4 M$ s9 Y& s) o
let i 3
& r, D& C' x0 q" d) N J) Slet sum-time 0
; `0 {6 `9 `3 P, f+ Z+ Swhile[i < trade-record-one-len]; ?1 e. o5 \5 B: F. L# ~9 r
[
1 n; n3 z8 @/ \8 e6 f. Vset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ [1 f$ F. T' d: m
set i1 z" w" }3 [+ A b( q
( i + 1)" q: H7 T4 i3 h5 i
]+ S2 A! i7 g2 t/ F% l0 L
let credibility-i-j-l 0+ M$ p+ h r+ Q% A/ h' K$ n' w' ~
;;i评价(j对jl的评价)
" o# A! e2 i# ]" s/ F# Klet j 3
_- t5 V) \# R, zlet k 4
+ @# I4 I7 w& M; `& e wwhile[j < trade-record-one-len]
- S9 p: `; k: H4 v/ X2 W, C[
1 [- t( _& |# `0 S/ 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. D5 k* D7 E% l
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)! J* `9 L/ p8 p. d+ B& C" h2 r3 E6 o
set j
/ n- M8 J; R) w: B, \: l6 I! H, m( j + 1)+ Z! x6 j3 c6 l9 s: C& J4 w3 v2 k
]( s2 q1 L+ V" ]
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 ))! d: I& p3 y( M% f5 F' [2 C; Z; ^
: x$ k- k4 |+ t$ K7 ?1 W' i
7 w( h W; X& }& f. \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 Y4 a/ N) z5 P; k
;;及时更新i对l的评价质量的评价3 ~$ H2 z' u; i5 Y1 ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 ?+ o: ]; K' p$ g: j1 u$ B
set l (l + 1)
6 Q- N1 i, t' D! P]
( ~; k4 T4 r$ \; W; nend( R6 V- J3 p$ e" e3 Y( {
2 b* R% Q' u6 ?! m( p5 ^) ]" K
to update-credibility-list
G; q% v" R: D2 @let i 0
: |8 A: D/ z: n8 F. R8 owhile[i < people]
1 v, k! K9 K2 M; t3 q6 [5 P3 ?[* S% H4 R) ^/ W! v& T
let j 0
% c4 q d! ^5 N* ]let note 0# H3 B( H/ ~) _$ o, w
let k 0
, |; ]5 {; \& U+ p;;计作出过评价的邻居节点的数目) a/ e/ \ c9 m4 ^% G: Q+ N
while[j < people]1 |1 W( `/ ]: h+ ~# T3 S
[
, g1 _0 m3 N5 e! e- P+ `2 A$ Vif (item j( [credibility] of turtle (i + 1)) != -1)
$ [6 H5 v1 H8 B9 ^" g9 K;;判断是否给本turtle的评价质量做出过评价的节点. K- V+ U$ Z- k2 s) m: o# L" c/ Z
[set note (note + item j ([credibility]of turtle (i + 1)))
3 D j% v5 I g1 F8 z;;*(exp (-(people - 2)))/(people - 2))]
9 g: ] o u) C1 d: Rset k (k + 1)5 s1 }* ]* g" K {
], T3 Q Z, p- i+ M* `
set j (j + 1)$ \& I& P7 Z$ {* E, P0 \
]
4 n7 B% v1 _3 Q7 [3 [5 Uset note (note *(exp (- (1 / k)))/ k)' P4 e2 i" h& d7 w2 ]& n: v
set credibility-list (replace-item i credibility-list note)
4 [" U. [4 t: n7 vset i (i + 1)
& ?4 [2 s# Z. z2 r/ H]
2 I( s: a5 z" J, N) o9 Hend
. @4 W& Z l y2 B! v4 u! d7 e1 o5 J
# I2 }7 u( w& H( gto update-global-reputation-list
6 G T3 b$ g8 R( U' flet j 0
5 l4 q. E1 V- q& B0 Uwhile[j < people] N& K7 i: C3 V( |+ o( P& p
[1 I& Q% j# d$ w$ e" T q; [
let new 09 n( l0 b7 X }) ^% n. r. D& o
;;暂存新的一个全局声誉" z" T R$ f4 m; L) e" G* R9 z7 @
let i 06 }; U: A" d0 A& Q6 z% A u! T P
let sum-money 0
' V4 v) m+ e6 H' llet credibility-money 0
! Y, p' c% e0 `9 y6 n1 @+ Lwhile [i < people]
! e! b4 D7 Y3 Q, a( ] `[2 `1 H6 C) t$ C0 V, a- D8 g" E% A
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 ~! j; W6 \/ [% r. F$ ]5 N E
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% Z y7 O3 ^6 Y- c w0 B2 O
set i (i + 1), i) O' F/ Y8 ?# \: w
]2 w; R; b4 i- u' D
let k 04 m2 H& S3 b3 K X4 b
let new1 0: B; N& u$ o9 P! @/ m3 m) l
while [k < people]/ a$ `( D( g: ?9 {4 C7 Q
[
3 h+ R% {1 M) D# P3 f1 n0 {$ t# kset 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)
) @ g" d* Q" ?0 ]7 z& bset k (k + 1)0 j. D( F& \2 S' p& V$ N, r
]. I# u* D9 W, X J! x
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, a O' S9 U' O \# U* _set global-reputation-list (replace-item j global-reputation-list new)! d' F1 k8 Z. i$ z* Q+ U
set j (j + 1)
$ R4 y9 e$ E9 o6 U; k+ }]
+ f2 G1 S0 `- c mend& | A" ]% o9 N" j
" x* s) G! X+ i
& L3 r' s( g/ C$ P+ M
% M, A$ `' L6 T) n. Uto get-color2 A6 y3 d$ P3 J/ |6 W
8 I G6 m$ B; ]" pset color blue) I; ~% V n/ ~- b7 T
end4 A3 T7 B. b0 R( H, m1 {/ \! j
: X9 J2 n/ C- s6 _8 [; uto poll-class+ l0 [6 r8 y) n( q+ f
end8 \7 e) |0 X$ `8 K4 t
2 @& K* m) ]5 i- b* W
to setup-plot11 t5 p( @& N' m+ i5 `6 w& q, B
2 p" Z% ~( A* s+ W3 R+ j
set-current-plot "Trends-of-Local-reputation"/ C5 S+ j$ \" O4 d
9 q( t3 l: p4 g
set-plot-x-range 0 xmax( ]0 {# y, x5 @; P- m0 ]
' Q; i0 }* m# _! j) Rset-plot-y-range 0.0 ymax
P5 {4 l4 M$ v+ U* `, Tend
' d" P3 |6 K1 b7 _# O. Q v* v
2 b. s" Q w$ a$ I7 U- @+ U. k# fto setup-plot2
! E, Q" }6 o& t
! x( V* }% V0 w9 {+ z% Z% B* X7 F$ Q- rset-current-plot "Trends-of-global-reputation": |6 Z. k* ^$ ~& X k
$ L# a" u+ t; y1 Y
set-plot-x-range 0 xmax9 b0 F! J8 r' y
( ?3 w/ s6 A0 L7 e4 s
set-plot-y-range 0.0 ymax6 R4 f/ z! K) ] T
end9 @+ ^' @/ u- M4 P( ]: S
3 @" c$ Q' N' F! t# Z& r/ b
to setup-plot36 K$ r$ X! D: p, Y# d: {* L
$ M( P) D* K. g' c5 c1 g4 x
set-current-plot "Trends-of-credibility"" _+ e1 ^3 u/ O8 J T
+ \5 v& T) a/ w7 I: zset-plot-x-range 0 xmax& h4 I4 |* |5 r( @' Y: T) t5 [
# x1 v) F; ~, t. S& ]1 Kset-plot-y-range 0.0 ymax
1 ~3 t8 N$ ^- X# ~! j; k# ^end/ @& J: j: R$ D, \& B
{% v" e4 ?4 C+ ?) fto do-plots3 j( G0 Y4 }0 O/ i- h) q
set-current-plot "Trends-of-Local-reputation"
5 Z/ v. I- {! u8 o9 m# Iset-current-plot-pen "Honest service"0 h/ l4 b) v3 N! V. t; `
end
r( c8 O. V" n9 j3 F
/ I' C* l/ T1 k) q$ i5 y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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