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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 Q" m' g6 C/ U3 l* [, k/ {4 Y
globals[
. w8 M/ J8 s6 ]0 G# E6 ]xmax
+ v1 z, s" q# ]$ j$ \) c7 ?ymax
9 I0 w. n7 ?+ B$ jglobal-reputation-list. S W9 S$ ^5 g, P9 B
' \. A4 |7 R# k# y( ];;每一个turtle的全局声誉都存在此LIST中/ H( a D( Q% q3 q" s
credibility-list
3 d7 h7 M8 a2 {/ N;;每一个turtle的评价可信度
8 s, J9 M6 n9 B8 B' i+ Z! G bhonest-service
. r8 q( C% d5 p/ J0 N, h1 m- r$ [& o5 Uunhonest-service
* @/ ~/ W# n$ ]oscillation
3 S, B/ y; L6 D: Q( Yrand-dynamic- V& c, l2 F! S, R
]
- ~8 v E3 ^* E! m3 ?$ N4 d* [. h7 a
turtles-own[
8 [$ R$ i+ b. k; d. r: ~- s E' W9 Jtrade-record-all$ c: y" ~6 w+ o; Q1 {) N
;;a list of lists,由trade-record-one组成# z$ z# Z! i- c' u: B' W' m: q- y5 i
trade-record-one
9 {+ I, W6 B# |;;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 ^" v# x& U S
- j5 ~) _$ n( ], |1 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]]
y# ^$ s# }- r( N5 Btrade-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]
) D6 x, I' l, M- @ M" pcredibility-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 p$ x& ^& H% T
neighbor-total
& f4 [# j' _" Z/ r;;记录该turtle的邻居节点的数目
' h5 Z$ i, ]* i9 n6 dtrade-time
" S2 d% e9 f9 p2 ~, b+ ?8 F! L# H;;当前发生交易的turtle的交易时间, m1 N2 |# S! C; a9 {
appraise-give' H& ^. N' U! j& T2 i
;;当前发生交易时给出的评价
( Q5 a0 ]; L7 j3 B; Jappraise-receive
. k2 l* `+ f2 K3 J: |' o8 v;;当前发生交易时收到的评价
* D; ]8 A3 Y$ _8 J+ c+ Q# ?appraise-time
4 p( V$ M2 T8 ~( R- D* m# n;;当前发生交易时的评价时间( C5 O9 ]- {. ~( W+ [' ~2 f) x; T
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 N7 p) k8 _& n1 c- R- ?7 Jtrade-times-total* g' U+ q7 q* L
;;与当前turtle的交易总次数
4 a/ j1 C# R1 G2 M1 ?trade-money-total, m! u" ?! R2 E" C6 N
;;与当前turtle的交易总金额& `1 v2 P7 r! K T4 i+ G) D l
local-reputation, }5 l& y8 ?0 o# {4 P
global-reputation$ h! Y& R* d, s1 G5 S0 u6 K/ v7 L
credibility
" V1 n( B A3 z;;评价可信度,每次交易后都需要更新
: B( o- u/ v0 J; vcredibility-all( r/ ^# T# d# g& ?" |) O
;;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
3 K1 d% }5 T) q( @/ n5 @! s
a z# x, L0 P;;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 I% \ b; s9 ]4 \4 {* l8 ]9 u' Ccredibility-one
$ G* a" j; w v$ N;;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. W4 p8 n5 R$ v! N; @) ~/ ~; Z3 _
global-proportion
$ X# s. b' m C8 H* k3 z- H, Qcustomer' ~. y, ?+ K& T
customer-no, D+ p+ Z$ ?- v, ]- r4 K) b
trust-ok3 V* o2 [5 s2 ~/ J, T8 N
trade-record-one-len;;trade-record-one的长度) @5 B2 ]+ U. V6 K2 n/ V9 A
]. P- T; P+ W& \" N" H
( q# ~' r+ A6 R1 I: [9 L;;setup procedure2 @6 R1 T$ R% h; i5 z1 n& R
+ F& B# `: M' F% ~$ ito setup7 Y6 I, E% o6 |" X
; U3 D. v4 D: |& d' x$ M* k2 E: S% Sca! ]8 r8 k `% B0 U2 E" |
; h9 k) @- [6 a* q2 I1 hinitialize-settings
; `, }! ?8 o3 B' c# s; w0 ?' H2 Y( v( i) v6 `5 Z% ^$ n
crt people [setup-turtles]
1 u3 E/ H: z5 h4 ?2 m2 E( s2 r, |
reset-timer
! G" Y+ a3 ]/ ^$ a, O( [ _9 y0 x2 z F3 v) e
poll-class
; w+ R7 S$ v% q E' k/ P. _7 `% { v* m3 r
setup-plots, [2 E% d1 H, T5 e. n1 \, Q
2 F0 F \9 [; f: c' e2 n- C" cdo-plots1 G, a4 k# O4 [% _
end, C5 p% s4 P6 z- H
) g7 t9 V) ]5 F3 b/ e# Z
to initialize-settings
/ t1 j6 i2 R) S( F% |& Q1 r2 k0 B; @
set global-reputation-list []4 d4 A4 W- s1 {
: c( v) D1 S; V8 ]) `1 Z
set credibility-list n-values people [0.5]
' h2 {! _9 Z1 N# d
/ k5 t6 h: q7 z! W; |3 F6 u: jset honest-service 0
! _# ` h, Y7 e
$ o% u, l8 C6 `* {/ e1 f+ J ^set unhonest-service 05 m. q0 o. _! z2 s5 I9 f# r4 a
. @ Y8 G6 V! U/ Pset oscillation 08 U9 s; p( g$ K; J- V
& b. D6 p2 j8 ]/ G3 \$ H7 q
set rand-dynamic 0* N& F1 b ^. u* X n
end* j4 F9 S# u% f) g0 B
3 c) {7 l: H4 y( @to setup-turtles
0 f: e! X% r/ @. [/ f/ j! [: Bset shape "person"* M9 [8 j) V- N( p* f a
setxy random-xcor random-ycor0 V* l: N& i9 |! p8 o9 A# c
set trade-record-one []. _0 {* F) B, |. C) k. i$ Y
2 ^8 J8 e8 s- o
set trade-record-all n-values people [(list (? + 1) 0 0)] ! ~& q# H, f" h6 F! j+ u4 ^
3 x4 W; ~/ O! M: F
set trade-record-current []2 Q! G6 z- A% t( g
set credibility-receive []
/ Y8 q: g) m0 E; J7 n6 Rset local-reputation 0.5
9 e9 X1 d7 J2 f: Xset neighbor-total 06 l* V7 y3 E7 n% c
set trade-times-total 0
* J% L" t1 V3 y/ \) ]% eset trade-money-total 0
- ]. u5 ?- S; L4 z; K1 t- @set customer nobody
+ j& C$ r. L; Dset credibility-all n-values people [creat-credibility]
* |. c3 p! r' `2 q- nset credibility n-values people [-1]
5 a2 \& K( y' E8 Q& pget-color
$ ?1 v2 a0 T0 _; I! J; Y! @4 `: Z2 N/ J% e' ?- r
end" j, e4 C/ I! D6 N
! H& d; I4 m% e# T1 \$ C+ rto-report creat-credibility$ Q n# ?" b1 f1 W9 i0 v
report n-values people [0.5]- p7 x5 ~2 A# H/ v, a7 D# u
end
- o) ?5 E3 z$ f- m- r7 ~5 F8 w! }) H: ^, s4 i- Y: M
to setup-plots; _- q& M) K0 N$ i/ Z
D# i+ _- w8 P j# k0 Gset xmax 30& u& @# N+ @$ _7 M
- R/ |- c/ s6 P" S8 M: S5 _
set ymax 1.0
" Z- |7 s; {9 U7 ?8 S4 C' V, m, c: f; T3 W
clear-all-plots5 v, q: C6 |( B
4 m+ v& f+ p- o( s& U: Z9 O
setup-plot1
& A/ V- t! Q. [, K1 {! T2 K
4 n# |0 D" @: k& Wsetup-plot2
5 j2 _" l# u4 s" ^! A" B* R0 V4 O: V% Z, S8 @
setup-plot3
: `; Y! q3 G/ {( g1 Tend
3 s& S/ G. H' {/ j- b
/ f/ _4 X( O- `% j;;run time procedures; V& C/ K S2 [0 s
) s6 m9 \6 q$ G2 s6 d
to go$ \3 M1 _( k$ N1 G0 h3 Q
& z9 t( I: d( f: A3 G. A9 Nask turtles [do-business]
4 f- t) Y" S+ H3 O0 r0 {. xend
# b, x/ F2 g. g
! R" h( d( b( R8 ^to do-business
& e. ], D9 G6 x: [# c, I% y ~ ^% [( f0 w% Y
. Z: z- E/ t: O6 Wrt random 360
( Z: V! x, g9 J% B
, G6 Z, z& R* `# Lfd 1/ V" W& U. m/ P/ e* S9 `
) u6 n% r x* ~3 G. ]' }3 r% \
ifelse(other turtles-here != nobody)[; z- |: m3 T. q* e# ~. j3 z
5 |' G6 P% q) z# E
set customer one-of other turtles-here' ?0 ]: M" g1 k2 R& f8 m
, w N: O. B% ~5 [;; set [customer] of customer myself9 P; m! p3 N0 W
( z. |! y& p- a6 `' D& [set [trade-record-one] of self item (([who] of customer) - 1)6 ?% E; ~. r' k9 t; S" K
[trade-record-all]of self
) S4 F _! F! P' x7 E' Q# ]' f4 K;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 }) M! M' _2 x2 ~* \0 j
; U* y+ H& y& ^/ i8 Lset [trade-record-one] of customer item (([who] of self) - 1)0 V; z7 b+ r9 i7 |. S& `% ^& X
[trade-record-all]of customer
$ }$ e& I X& X) f& B8 e) y& l( a0 j# `) o' C, l) _& W% m% x( l
set [trade-record-one-len] of self length [trade-record-one] of self* k8 d& G1 q. i0 b
$ Q- s2 H1 ]+ n; ]$ {set trade-record-current( list (timer) (random money-upper-limit))
( Q: x: x6 K e# Z0 J
, T* T7 a' ?) f: Y9 s7 Rask self [do-trust]
' k# G: z' ]9 S8 R: k, j1 i# T;;先求i对j的信任度
7 ?+ q: {" Z6 o6 ~( t0 S# @' |" Z- {
if ([trust-ok] of self)9 N" C/ j0 u' V& g% |8 n
;;根据i对j的信任度来决定是否与j进行交易[
0 |8 j5 O& C+ Q% Mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
3 k2 G- w2 `" @. A
. _# W. w- m9 ?2 s/ h' [* Y[
4 t5 Q6 x) H8 ~3 p( [2 n0 w! e, O1 [4 A) E, O" M( G
do-trade
/ \1 t3 T+ l9 s7 T* B" W9 q5 f% a0 g# {$ X" g, ]& n& `
update-credibility-ijl
8 v) D5 ?3 t6 @/ T* u4 \# Y3 |; G/ P. y$ B4 Y/ {" d
update-credibility-list
6 s, X$ H1 X5 s6 z" @, y+ Y3 g5 b' |) i0 O/ A5 o1 m$ @- C* A
8 i% u" Y L2 aupdate-global-reputation-list
7 u( k% A" _; W* l/ Z3 G# t) f0 E/ \2 t& x
poll-class
) l3 t0 _( {4 N5 U) \$ \
: @. h( w- P5 J. Z1 p5 ~, Y6 gget-color
( j T$ A; C( @
5 J: ?' |- a/ P* n/ i3 d]]
# r# i% c. J3 @
$ u. L' o" Q- i7 Y5 o8 _# d. k* b7 M- };;如果所得的信任度满足条件,则进行交易+ m3 l+ b4 ~4 ]+ [ [0 ^
, R, U6 I5 v/ c0 k+ ~& J2 ^
[
7 A0 v. \- E. L7 M) {# B, a" C4 L# ~: z' v
rt random 3604 d& V) {" q9 T+ j; K( m
; ]9 g2 t& M U2 b7 L% C- Efd 1
* v/ Z) Y: S; e2 k% }
0 M% t+ \" x1 b6 Y" o( F]
% g- \6 F3 v5 \ R5 V3 J
2 ?: I6 P7 b* e0 z- B# g" S& r: T4 ? eend7 R( Y: q4 I' n
7 C4 A* H( h. l/ Y+ ~to do-trust
) p+ x6 R. W! `set trust-ok False t0 ?! c3 ]& I5 ]
# n# d6 j6 H" U# ], q3 Y0 a- B8 d" A) Q* V8 b
let max-trade-times 0 B2 u! [# ]3 {: V9 |2 I& ~: q1 Z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- G) R5 v# O& [4 v) H
let max-trade-money 0
* c9 `) u* z9 I7 q. {& R, wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 u, _7 a, ~% O8 ]; A/ H
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ l% d. D6 A7 [+ ], a5 N
* F& Q3 e5 p* v
# S$ Y0 J* E2 n
get-global-proportion
, l& M6 L1 i- F% d0 {/ {let trust-value+ \- d3 Q+ s% z& M" m" T7 t- z
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)* o& \! v$ [+ ?9 d
if(trust-value > trade-trust-value)
8 N. t% k h4 f1 |0 J5 |[set trust-ok true]8 K0 H, h+ y6 V( `; s* B3 w
end+ I6 i+ {% j$ d" r/ U p
. e( ]2 v" t/ I
to get-global-proportion" `9 I0 t6 J# A* T* H% j
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* v: p$ W, }& \/ n& a. B4 @[set global-proportion 0]. D, ]- D" Y/ }
[let i 05 e7 m( M B9 l7 U- {
let sum-money 0
$ w1 z) I# J6 j) f$ Jwhile[ i < people]
7 o& ?1 a8 v! }0 n1 C4 | x& F[2 ^4 v* L, L0 A% b
if( length (item i3 a! P( |7 g& k
[trade-record-all] of customer) > 3 )+ B6 y. @' W' @
[
3 g& K/ h1 g! V" ?) Z* Tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' z6 {2 B" p) O& a! v]
0 ^) l: k; ^( w# t* u]) O! o* m2 E- h6 w. u
let j 0
4 j1 [5 X( A- H- |- B3 Y6 slet note 03 ~& F$ f7 V# [# _6 L
while[ j < people]+ _" P6 N; A$ o6 x& Q
[% l8 v0 ~$ V6 g+ s+ w
if( length (item i
2 z0 a) _& w: R[trade-record-all] of customer) > 3 )$ _3 O; F% A4 `7 B, d G) j
[ T1 z. z) v5 H8 a5 `
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ X- q ?7 B+ W[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( c/ |6 f; l% p6 i[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 C) ?. Y& U3 U5 i# v$ G& j]2 g# e' O5 o8 `0 ~1 k+ q
]( \) U5 r' I9 q, h+ D1 p+ Q
set global-proportion note) f1 p5 m* z, x# c- S
]
! Y! Q+ ^; A2 J2 I2 Y; B7 Cend Y) c. T% v8 D! a. K8 x; \ T
- E) G3 H5 i" j1 D+ h
to do-trade
X0 X! |- y' M1 }" Q;;这个过程实际上是给双方作出评价的过程
- l/ X+ U- X! a4 V* j/ O5 k" h* kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 z' M/ x% h: Z6 |2 C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价6 N7 r0 Y/ ~2 O; X- q
set trade-record-current lput(timer) trade-record-current) A! c& F# m0 f+ m. J
;;评价时间
5 t) W- C4 n) Z1 I# `ask myself [
8 {. P. B V1 {$ V6 Z. [: xupdate-local-reputation1 _% F! ]0 P) s9 `9 K; E |
set trade-record-current lput([local-reputation] of myself) trade-record-current" C; {& h! o2 h" `) x/ P
]
8 \- k' [' v" q' P( I. cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! Y. P {) P' L; N9 s/ d
;;将此次交易的记录加入到trade-record-one中" q5 M, _# t, R, C% V j6 u9 i9 H
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- `9 R+ k& q0 ^! J/ W' o7 S0 _8 }let note (item 2 trade-record-current )% Y2 S' C5 z9 y0 D( L7 ^
set trade-record-current3 ~( O! i, Q1 p( ~2 G+ ~. t
(replace-item 2 trade-record-current (item 3 trade-record-current))% L0 v; `8 R8 `& {& g% _. W, q
set trade-record-current
) L6 O( Z) S! [% k) Q! c2 l+ e(replace-item 3 trade-record-current note)
- ?+ I n* w; j6 x) W) W
& B: `3 m! P; p4 X& B$ M$ E' | c4 ^
ask customer [
( Y/ ]& a* H3 T+ j- y* Kupdate-local-reputation
]* @1 g, D+ J f. z5 k. rset trade-record-current
5 ]6 r" s, S8 ^& I6 j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # o3 L3 g* F! P9 u* t
]
' n0 a2 C. f( R* ?) I+ B& @% ~' N! t
6 n9 Z3 r& o3 j- T5 X& R9 H1 e/ Y3 X" W
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- q' o8 s6 \7 R; X
3 m6 h; c0 { C7 R) ]& c
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 E7 l/ ]) b. F+ f, q;;将此次交易的记录加入到customer的trade-record-all中
1 D ?9 d8 H$ M6 i( d- X& M- Bend7 Q6 B5 C' d, B( r, R8 f. E
5 S* D" K4 k' I1 |
to update-local-reputation
( s& [0 j" i7 d4 i. F6 l1 C4 iset [trade-record-one-len] of myself length [trade-record-one] of myself
& G& y; a2 z" j6 X' n$ c: r6 ~) d; X1 X. d+ X0 P9 [ S" @$ ]
# f; j' z+ i6 a8 m! B( u6 M;;if [trade-record-one-len] of myself > 3
. O: J$ G( T! }5 lupdate-neighbor-total) ]% l, }3 U: n ~
;;更新邻居节点的数目,在此进行. H, u/ `; B$ |& m
let i 3
1 n; N/ R7 q* rlet sum-time 0
8 b: `! H. G( t9 L. [2 Kwhile[i < [trade-record-one-len] of myself]
! h/ f. u- `" {6 c[
2 ], P7 t0 n8 J6 A4 @, m: ^" {* jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" `) q6 }0 y. f( |0 m: A
set i2 t2 g3 F& O/ S5 W
( i + 1)
" d, P) R' a, o N3 J]* p, _0 o o7 s5 Z v1 c
let j 38 }5 y- D% o3 }
let sum-money 0% \4 F3 K) a C& ^: P# n( F$ h
while[j < [trade-record-one-len] of myself]
+ p8 J! i: m. a3 p9 o4 {[0 t! s% s& D7 N/ b Z! h1 P! @- Q
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); T( f v z0 t) Z( P; l
set j
& g% G% h! B% J( j + 1)
8 I* Q7 k$ p! ^6 P% q) }]& N7 ^: W: g0 Q' e2 O2 p- E/ e: h
let k 3
0 Y+ B% W, k& ~$ C/ x1 Q$ mlet power 0
6 [5 ]; C8 M- N2 v6 olet local 0; b% F* ~2 S/ n: K8 g1 M/ _
while [k <[trade-record-one-len] of myself]6 c3 N7 L9 j! G4 N" v5 d
[
# ~; J- L; \/ L4 j0 C' c4 u# uset 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)
& T v2 m) _7 F/ f3 J4 A2 m3 Tset k (k + 1)0 b3 ]& w- T B5 y- F8 h
]
9 }2 A6 b6 D, S: p8 ? Aset [local-reputation] of myself (local)$ ?# Y( \9 D6 @9 j. t# l
end6 {, [6 y: N5 V% Y; l- z H/ O
4 Y0 ?1 H. C9 \1 Q4 w
to update-neighbor-total
y! B+ P# u2 ~% p
# d8 X: {# u0 D" D, M5 M" ^if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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i3 s) `( k' W! x/ E) j" n s
. a% T- ]! ~, j; |end1 P# z2 A- T" _ l
6 ]7 y& G3 T- ^' d( Gto update-credibility-ijl # @: c* m2 l R( c
& F1 a2 j; _; m& z: _
;;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。
4 l( x. T+ r9 _0 l2 dlet l 06 i4 r1 C9 N4 j0 n: ]! G/ F
while[ l < people ]
i0 n2 z: n' ^" Q8 M+ n# S" ];;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 Z. P2 ]/ |( N: J! e9 G[3 L( z! e2 r4 V/ z+ J
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- b ^$ ^/ R% @ V/ g. Rif (trade-record-one-j-l-len > 3)
: i5 [+ _9 Y0 F/ _3 f$ ][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 z& [- P4 e: N- [7 |: P; D3 r
let i 3
5 f8 E! z8 |5 b! b A1 V: }let sum-time 0
3 J. d$ o+ J; J# Iwhile[i < trade-record-one-len]5 {9 i$ R" z* U6 u! d( c0 t, E* ]
[
1 v% y% l$ ~% b4 \; W9 u3 c6 [4 L+ @" [set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 a9 C/ I, _7 p/ Eset i
& r' g/ d0 b4 @+ R( i + 1); O1 E3 }, _0 ~* i; k/ ~( C
]* N, ^2 o4 I) p
let credibility-i-j-l 0
( F) q2 A. m+ ^5 E1 n `;;i评价(j对jl的评价)) ^2 k+ f$ E3 Y# W2 n$ y
let j 3
8 C( @3 r! B4 C0 K: D9 I2 \let k 44 _$ X# g3 d/ }+ Y, h! g8 X
while[j < trade-record-one-len]
' s9 M+ u; X+ p9 e4 a! G8 q[
- Q; H" x2 \2 s6 m6 a- e: i6 }5 awhile [((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8 ~5 Z2 b7 f) B/ D$ e j. Z
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)
9 B2 }" O6 {7 \/ t* U# J, E+ v6 hset j
% P$ B( Z k% ]9 |/ C9 T( j + 1)$ d, Z; S6 K2 G! u
]
' a3 y0 R' p* D3 M+ k, Yset [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 ))
4 y7 M n! z' b/ \3 T
6 t m* A* T$ ]+ }
- H9 l/ M. S4 plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))4 [" q& h8 F9 T. ~5 f4 x
;;及时更新i对l的评价质量的评价
/ v; O: E; [6 [' W& E+ Lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 _ s2 c" r" B. S
set l (l + 1)
0 G1 G5 `2 t4 \* }# N+ d/ P]
" P5 y* g, k n- k- F5 q6 \2 nend
* a1 o! c% J; X% U9 t3 s. g$ T2 z e
to update-credibility-list) I* m8 n* I' E3 f& j5 p( t
let i 0
. e' p! t, \# E5 _while[i < people]
$ _( ?- I3 K, O2 O6 T3 ?3 q; A4 M[
: N# {% ]' H/ t% `' e, j$ j! m8 o. glet j 0
% R2 Y/ S/ W" H' ~0 ~4 q2 ^let note 0
1 m, K: [) b1 Q xlet k 0
( {9 q1 m, _, w. U" D;;计作出过评价的邻居节点的数目7 v) k7 A1 F" B2 x3 ~
while[j < people]
. B5 c2 A5 S0 |1 J" E[" R6 ~6 w1 N% W3 y
if (item j( [credibility] of turtle (i + 1)) != -1)# D4 z4 a, H9 L0 p9 P
;;判断是否给本turtle的评价质量做出过评价的节点7 x% }. t0 L. s, L- ]7 ]$ K
[set note (note + item j ([credibility]of turtle (i + 1)))
& k" C# d B' e: S;;*(exp (-(people - 2)))/(people - 2))]# h% s1 n5 w G7 j) `: y( e I
set k (k + 1)# b- R! s- y& R* ]. u
]/ |: K o) W( k% E
set j (j + 1)
. t4 W8 k0 l( I, O# j4 J# P]1 Y- D2 u5 G8 b& c
set note (note *(exp (- (1 / k)))/ k)$ m4 Q) r7 Y) R& j
set credibility-list (replace-item i credibility-list note)
Q: r$ A2 u! t. D/ Oset i (i + 1)7 @+ V/ a1 ~# j' d" X# g* H
]
* Z) k2 t5 e Z7 O! _end
7 w4 f$ F" O8 g2 l7 X4 C o- s2 C1 p9 ^+ r# O$ I8 X/ p8 j
to update-global-reputation-list4 U: a. g4 B B) o" m
let j 0
3 @% D: D' R* ^( Vwhile[j < people]' L' P9 m9 Q9 I$ G
[
. a5 i) ^; j: k. \ C2 g7 `let new 0; J+ ?: h0 e2 ^
;;暂存新的一个全局声誉
8 |8 r3 }/ [: n# elet i 0
8 H: B/ v" D y& g, `( E- Rlet sum-money 0- _) F& I: a5 k' M* \* X
let credibility-money 0
$ d: z6 y# L1 j Iwhile [i < people]) }: I8 h4 \0 Y7 ? M8 q
[0 ]5 x+ q2 s/ I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' Y0 {1 R# d$ n% p! Eset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ N5 T5 c, z( [ D9 Z) `set i (i + 1)8 g4 ]* V# L) u6 I2 [/ |3 I9 N
]
) e9 j# k4 C# A1 |let k 0
$ D4 V( K- I7 G* klet new1 0
- E* [" H7 V1 V m' [while [k < people] Q* J' Y8 ^# [/ H$ L9 u6 r
[2 l" k7 N8 r- K8 {0 a7 R
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)1 a3 N) Q# A$ W. E; }+ j" u
set k (k + 1)) I$ ]8 B( t2 P; u
]
2 C9 V$ Y) E3 o- Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % E( E) }* F+ [, Z) z: W" Y
set global-reputation-list (replace-item j global-reputation-list new)4 I4 ]" j$ J9 e
set j (j + 1)$ D- t% e5 z) P4 p
]( ?6 ^. i: W* x8 t" f
end ^ N! [- E0 E8 Q0 ]5 |3 p, C
0 y5 o/ V1 d# i) f" `9 R# x- b: P2 R0 m8 Y7 b- D$ j! D0 M
3 c D0 ^1 Q* D! u5 m+ O( x
to get-color1 u8 z) x7 w8 |1 ^
( X- W- `5 i- V2 ~5 ]; u& H; jset color blue
& H5 m8 E9 { p! r- G+ J; ~end
, _* [/ w) a5 B3 z1 ]+ I" N6 O
0 I$ }1 ^% ]+ k! K# O6 N5 N$ Hto poll-class
- P4 u+ Y) w+ O7 G* kend
7 g" F ]3 `$ @: E
$ E# U6 ~/ Q/ pto setup-plot1: v$ v D' a! j6 ] e
9 l' M0 S0 g& x/ cset-current-plot "Trends-of-Local-reputation"+ C2 V; c4 Z; u/ V$ c
4 J: l- t- I! m ^5 H/ u# G9 yset-plot-x-range 0 xmax
3 |% l( w8 D1 M0 Y7 k
, n5 ]* h6 N2 j. ~. ]set-plot-y-range 0.0 ymax# N! N# S1 h0 m
end: _; k( z0 y7 t( z4 y, g+ E
0 \& W% G5 N: L& _7 d
to setup-plot2
n& ^$ R. Q1 Z+ I6 \* i- k/ l6 [- G3 ?3 G
set-current-plot "Trends-of-global-reputation"1 h1 E: \7 }% W4 R# q
9 Z$ H. X" Q1 V9 v- E" _7 b, Q; N+ P
set-plot-x-range 0 xmax+ U2 m# H2 _8 n: i2 @ I! O, U) G
) d1 Q; }7 ~9 [6 e: O! Iset-plot-y-range 0.0 ymax& B3 t( {, T0 ?' f1 O
end
: N7 }! \8 `' H+ E4 o
5 |) L% S3 w- mto setup-plot3
$ n( j- z! |7 u0 a5 b1 i# [2 k5 @1 R+ i
set-current-plot "Trends-of-credibility"
5 \& L( @# s* y. ?8 a" z- V
1 z) a- J- I8 G4 xset-plot-x-range 0 xmax
6 R2 m2 @* a' s z; u6 W2 e/ o3 T0 V. B/ V' o1 s
set-plot-y-range 0.0 ymax
! `% \5 A: r, b* b! d8 Send# m" C) B: Y! c
0 E3 i; L% Q+ e; @) R( H9 e9 Q
to do-plots/ U5 p' z' G# K z# ~' R2 \) o( S5 Q
set-current-plot "Trends-of-Local-reputation"
+ ^9 K- O; e9 bset-current-plot-pen "Honest service" ]: V& `2 q7 a( k5 s3 l
end+ p! s# o+ @1 Z4 C
& h: Y) h7 m( P! v[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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