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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4 `3 M' }/ v/ `9 Q4 s' j
globals[
- {* F- m! A/ `+ Rxmax8 Y: v$ S3 I- \5 {
ymax" y$ L$ ?2 Q3 w# T- [" P5 ^1 G- T
global-reputation-list
- D; J) L# ]3 n/ n4 O
6 E. w1 m& c* f9 z- @;;每一个turtle的全局声誉都存在此LIST中, u* h' w) C& {% L- X+ x
credibility-list
a, F" L0 ^5 J i;;每一个turtle的评价可信度
" C+ R. c; X8 m: _) D+ h. zhonest-service
8 {1 L( G, z1 E9 o" vunhonest-service
2 ~; o1 C, P: R6 [oscillation
& E, m* \( B4 D, g$ e7 ~+ xrand-dynamic
( D8 w! ^* d5 X& p, {]
; A; m7 v, w* @8 d" P4 f0 I z4 }9 K c& G; h+ M, |( ^" W
turtles-own[' r$ T _! }, b9 r. L! O8 B
trade-record-all
0 A4 H/ ] ^9 J+ C;;a list of lists,由trade-record-one组成' H& U& b7 d% Q9 F2 `/ O
trade-record-one
8 s2 w8 a" s# X: F. s7 @& 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
5 ~/ n0 V. |6 ~3 G. |
H; @2 K& a5 `/ y;;[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]]
4 S4 x/ l3 ~ h! l7 l) vtrade-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]% ~9 K" J( |% W. {& n: d" X; _+ S
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
1 K! \2 N) K0 j1 }0 L# kneighbor-total
0 O) I7 D$ f& }- B+ s* h4 ?;;记录该turtle的邻居节点的数目
; S& `- k# l& n! [0 K: T! x$ r$ gtrade-time
9 |/ V" R& i0 N8 Y" N;;当前发生交易的turtle的交易时间
$ p8 [/ K- w+ Lappraise-give6 v/ s( g- C$ s: t( n7 }, A
;;当前发生交易时给出的评价, w0 R& O" o& o; f$ j. S `
appraise-receive) k b/ }0 r8 T; p& e% r
;;当前发生交易时收到的评价2 [* m" T( r, t" D
appraise-time0 U! V4 I/ j/ A; _* g
;;当前发生交易时的评价时间! o+ _2 `- H- ^
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! P6 \9 @7 y9 m" Z7 G, y6 i* n' d
trade-times-total. f/ \: y, e3 ?, ^! P4 C# W6 z
;;与当前turtle的交易总次数/ x2 J. I( u6 e0 _
trade-money-total
, B' B& Z8 m' s/ {;;与当前turtle的交易总金额
- {! z0 [& t( G2 P0 |local-reputation
8 `( ~7 F* A% J$ K/ Zglobal-reputation
; f M* ?! Z3 p7 W0 ?$ n( R0 u$ Ccredibility
' D" Z4 k8 [' ~* l z# M;;评价可信度,每次交易后都需要更新/ R V0 n: T& j$ y
credibility-all1 }1 B, _& K: \ E
;;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! I( r! F0 k' n! C, A+ V8 P
6 f/ H8 l: ` s. k5 q7 V;;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- N! |+ R+ [7 B% M
credibility-one
, s- X# o# D# C" z- d;;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 @* J7 s1 V+ Jglobal-proportion' a [6 D( |0 v" X& g# w
customer
( S9 q: ~& b& O* X9 acustomer-no
9 I) P3 B: u$ p# Xtrust-ok
. }8 _5 c4 M0 N$ x+ _1 u) g( g: Strade-record-one-len;;trade-record-one的长度
: }( R8 u% d( h6 C0 }]
$ X+ Y: z4 X5 I$ f; Y2 U1 n! F( f' s4 q, D
;;setup procedure$ S( A( K! X q0 C. c9 g
% B" ?! u3 y0 w3 e5 f9 L( K& Tto setup
: u8 |. X' u4 F7 Q X5 _
L. E3 y% T7 m+ C/ y$ A) Dca
! R( h2 s' @# z! z6 U3 \% a B7 M2 A* A9 a# n
initialize-settings+ [4 J+ q, i' s* B/ B' K Z
( Z* T+ ?4 V- ]; @* b) U; \crt people [setup-turtles]: A; p( Q P' g$ h; d/ S4 I0 G4 \7 |
( @% a/ L/ Z! T
reset-timer. B# U, Q2 t+ R1 Q
8 c: z* E6 i) o' J. E' }7 H
poll-class( K( }/ f( Y2 I* {* ^* d
2 ^9 ?$ T5 X. u; @9 q( r' nsetup-plots
9 U1 G9 Q( s) O. g, d3 R2 C! G5 v4 s/ G' X+ }7 ^ |, U
do-plots
% |( h+ |+ l# `( Send; m% G- f: V8 g l5 T6 w
/ B, `$ W/ K: n& h# Mto initialize-settings7 p: V s4 o& {' w2 S: A3 d& K0 Q
; W" i/ \5 s) r9 }, R
set global-reputation-list []7 d# M9 k" z0 i) f% V2 P
_, f' y9 F1 g6 v% H6 X9 ^' Mset credibility-list n-values people [0.5] x( G5 V7 Z2 j1 q( E7 p
9 k6 X6 j3 d8 P. ~set honest-service 07 b, m2 ~& n$ \% i) @8 k
" D/ m9 q. [4 E7 j9 c! Y1 [set unhonest-service 0
& K, p0 I2 J, F* w
/ v1 t& b$ J9 O! pset oscillation 0
# c% |* c8 b0 |+ h# `# e! i# u. W- h+ v3 x' J+ ~3 _
set rand-dynamic 0
3 t: ^8 M) k4 o) c; t3 Vend9 ]8 _3 s4 L5 H4 v
: t5 t7 Q& L4 X. X0 S- O
to setup-turtles
3 P* N4 N! o9 b' [, @" Z+ d# B* Xset shape "person"7 A, x5 I2 _$ C+ X t
setxy random-xcor random-ycor0 M# X3 E" K; [" N
set trade-record-one []
2 K* _+ f/ R& q9 j* c! X- Y4 ?5 r4 @! y
set trade-record-all n-values people [(list (? + 1) 0 0)]
: W3 v! }( f) S5 o8 @% M1 V! a
3 S; J0 e1 q8 q0 }4 S- j# ?' |set trade-record-current []
2 B% X' {. O' J9 s, P9 Cset credibility-receive []* o1 @ V- Q D0 V% N% {0 V
set local-reputation 0.52 {+ Z% L5 q( T( l3 d' g
set neighbor-total 02 ~+ \* K; |/ w. M: L
set trade-times-total 08 M3 e" M3 U1 Z0 T
set trade-money-total 0
3 O9 p3 p8 q# `! h2 D- ?+ |# Cset customer nobody' \4 z9 C# _4 \( H+ g+ b0 b
set credibility-all n-values people [creat-credibility]& q$ z1 U2 c; U7 C) y5 F% ~
set credibility n-values people [-1]
& i/ f& R3 H! A, ~+ ~get-color( R: Q6 w5 n) x4 S/ v4 y
( Q2 K8 J j2 ^+ B1 ]- E
end& Z b$ {0 B- v s3 x6 d
5 m$ v0 R3 m( _to-report creat-credibility( g8 V5 x! f% h5 j
report n-values people [0.5]
) t: ]# t7 ~# @5 q( c" S6 H! nend
7 M1 C% U, h2 _" B: u) I# z$ g$ v* B
to setup-plots
0 \1 o8 d- M& c; k4 `" ` I* g$ g# b. m; G! Q, T6 b9 [
set xmax 30( L# l, j, |8 `2 J7 A
( h/ S! {/ @+ A0 }( Z' Bset ymax 1.0- w! i: d0 G3 a2 q
9 U) {& b e) i8 D2 S5 N& Hclear-all-plots- f6 ?8 B1 b& k1 A! B6 h) ]+ S6 l6 L
& }* A D, o1 P; i" R
setup-plot1
0 a4 T6 ?) e; n4 K& x0 [- ~& F' p
8 Q9 }' Y2 G. G1 z3 v6 wsetup-plot2
/ ~- x, t( p# F! \
; L6 `' u4 [1 g+ q3 osetup-plot3
2 V$ l. |. N# Send" f3 j) `1 Q& V1 z* q: A
9 b4 z3 \9 \/ s0 p% Z3 j1 l
;;run time procedures; ~7 U" b% d5 f8 F
: M: R, g6 A+ x& H, M x6 ato go% B8 d( E$ j: c( n9 U
2 B0 X( B2 H' O% a# L# i6 d- S: l
ask turtles [do-business]6 r! B& G( x e* |! w2 C- m
end
6 W6 k. z: y4 }! y6 c1 `' @) I$ Y5 t+ C2 A. y' h
to do-business 4 d( y# X, F- z
A/ J4 v% P+ r# G( \ ^
% H) ?( K5 _4 y& k4 k
rt random 360
) a) p3 c. o/ e
6 Q: z: R& ~3 z1 F: zfd 1
9 H1 b) _/ E, b* z8 i+ D" f; _ I; J3 x: L5 j4 n
ifelse(other turtles-here != nobody)[
/ A" n" X9 @: V, H0 a6 W& @+ q* d' _: y9 @: Z, g: T4 Z7 v
set customer one-of other turtles-here* _6 I" R; L% a* \. K( s* m: B
7 h5 Y, O7 |6 _* q. p;; set [customer] of customer myself( I- S2 r3 s6 `
& k' D% }, h6 K) Q% ]0 h6 y
set [trade-record-one] of self item (([who] of customer) - 1)
6 p5 e6 b1 d5 a: Z; Z$ _[trade-record-all]of self
- d" {4 M) J8 u9 T- R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' r, x) `$ ]! _( [3 M
3 G- ~+ i9 _7 _3 y; Oset [trade-record-one] of customer item (([who] of self) - 1)
8 q; G2 K; J. A6 K# f: i[trade-record-all]of customer3 P: W h. J6 W5 g) Q: B
8 [$ ?# o3 f6 V3 w$ f6 Sset [trade-record-one-len] of self length [trade-record-one] of self
5 k+ q- }/ P( v" @& m
$ ]5 q+ |& K1 v1 D. P% pset trade-record-current( list (timer) (random money-upper-limit))3 d; Q0 ^. J( ]7 l
* [, U* P4 G) m D0 a
ask self [do-trust]8 u% n5 V% Z( H h1 y
;;先求i对j的信任度
- q- D, G. o G2 V0 `' r3 ~
) A K- u% G9 u. K Cif ([trust-ok] of self)
`/ T" j3 \8 j;;根据i对j的信任度来决定是否与j进行交易[1 W+ {* w# v; f/ ^' ~4 Q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: u" g, Y8 C* I/ f6 T" n; t6 E" k
% Q! K9 K$ _5 M# P
[
) ?/ K1 T7 U9 a
. r+ L2 g v3 h" n' j8 Zdo-trade
9 J4 w0 N9 l$ b: n# j" M/ h4 k
% @1 M0 q* r- N# N+ H2 }update-credibility-ijl
3 O) n, U% e" Q3 Q6 h8 ^4 J, }* L: o
update-credibility-list
; f1 U( B+ z9 t! P+ D
) e: P& u' s( ?/ c0 P4 s2 i+ a" @. \7 F( u" S# g. ]/ `
update-global-reputation-list
, E; C; @9 S; `! n7 D% Y0 N, `; b: q) v5 |. v% Z6 |! F2 ] y) D! q
poll-class
8 s! j+ F* Q; [* x8 X
* N* M4 S! n1 A; i( S" ~: u9 Wget-color
( F3 g/ {, [7 A& d8 M( ?- D9 U9 _6 [" @5 J
]]
8 Y& b" }4 C- k1 b; {1 V8 i
9 p' b4 o: t. ^! j;;如果所得的信任度满足条件,则进行交易
" p* V9 k+ R- S+ H/ C. J- A; V2 M' r3 V$ [' J# X
[5 |( |3 }& p) A5 u$ g' S, \
" Q8 v8 r/ g' \" ^0 _
rt random 360
, ^$ }8 L( b8 W1 K/ r- {0 f# I# y# Y
fd 11 Y7 h+ P" y, Y0 k" Y
$ R5 [" I7 d0 |8 |]
$ |) C0 |( K9 J9 R& I Z6 _! Y3 z6 M% t
end
t! P# i: _: P* v. n- _3 w. m; W
/ ~9 B2 Y# I/ c1 N. dto do-trust
2 e# A( m: C8 h. L7 O, Nset trust-ok False
2 [" I# K* g* [; V3 ]$ A& n0 }1 @$ \6 F- V- A+ n
: Q9 ?' ^! _9 U5 v' elet max-trade-times 0
3 W: I7 F. I8 S, t$ uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 D: v3 u8 T1 d$ |$ ]let max-trade-money 0
1 p: S6 v* x. @: pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 z5 e7 L+ c' @( o* j+ Ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 Q v0 U, I& L4 b/ C7 q
" j8 s4 U8 P- v, G6 @( ]
) i$ u% P/ ]2 L( H) C& }0 O* {; e7 @get-global-proportion8 [( {% [/ z. f/ A, b' X+ d
let trust-value
3 a7 h9 E9 I( w8 Klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
, b" j1 q- `$ j1 C& xif(trust-value > trade-trust-value)
( L3 I) t) G: x/ u \6 [# L( I[set trust-ok true]
! ^# X7 N6 v7 }' K$ |! F* Pend
! N, C: L# d9 d3 |7 `$ D9 y6 ?$ P- S* @2 ?
to get-global-proportion; r! p( M6 V$ G1 O3 P
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ z6 G9 F" K% d5 T0 l' E1 q[set global-proportion 0]- E; ~3 a7 ]/ j$ B6 T' x
[let i 0
% g6 V3 w# `# m" e# }9 D* \/ |3 [let sum-money 04 I! x: c( i$ z; |
while[ i < people]7 V; L! Q( X: o5 V) R
[
! a( t2 b3 N; j8 @+ L1 @/ Y. ~if( length (item i
7 C% p! N/ {1 ~' k[trade-record-all] of customer) > 3 )
" Z. r' G, v, i( w! W8 N4 f& [[# H* a0 ?4 O0 m' K2 f1 v
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 ?# r4 F z" F. x2 S* w
]4 S) O" c! i" V
]2 j+ v2 ]" [2 r1 m
let j 0
9 z, i$ Q' A0 H) A7 Y% [3 k6 J. m0 ?let note 0
0 x2 |, \- h1 @# u3 }. uwhile[ j < people]" z: `7 ]- i$ ?9 W. {1 B
[
9 s! ]" f9 }7 @if( length (item i; t3 \0 h( Y( i
[trade-record-all] of customer) > 3 )
1 n& S {( l$ S/ |# e[ E0 x9 }$ s7 c4 e, _* F
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" d; @) j% ~1 b" @/ R# t
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 M$ @9 o" H' `) `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 N- F8 B: `7 @
]
# D/ q! g/ a& O- W& z]* K, ^+ M" d5 R# R
set global-proportion note
# K- l+ g3 q0 F$ m& Y. o]
4 V" {4 v- t r% ]. G, Oend
! }/ a v+ ?+ N( h
8 }& o( T0 [8 @to do-trade$ E6 I1 X7 V1 X+ Y2 |
;;这个过程实际上是给双方作出评价的过程7 Y' C; |5 c e, l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) [) Y8 u( f0 i4 h# G- Y3 {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" n8 k; X# H2 ^9 ~. J% Eset trade-record-current lput(timer) trade-record-current# \" `! A# u8 [& B0 v
;;评价时间
* y, H9 H" D* cask myself [% `! p3 a& _! v( V& X
update-local-reputation# T6 m0 u4 ?" Z4 A6 s
set trade-record-current lput([local-reputation] of myself) trade-record-current. `( _9 L" `1 K1 Y3 i+ q
]
, ?; B9 N% o. z' hset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ V: L5 A; x8 k
;;将此次交易的记录加入到trade-record-one中
8 t! h' K( f2 a: {% X' Aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ s+ _ i Z5 D* hlet note (item 2 trade-record-current )
% u1 J& _2 T* Bset trade-record-current
, ]6 \3 C$ n6 G, v(replace-item 2 trade-record-current (item 3 trade-record-current)): \0 c4 K6 c6 u) u5 R( ]* b
set trade-record-current: \/ R& P7 L$ g& t3 O
(replace-item 3 trade-record-current note); H" C: x- Q' G
8 W3 X: A7 n c0 x6 C" U z; ?( f# E9 h
ask customer [
9 X( g" F7 r/ l# T3 qupdate-local-reputation
/ `9 t& p* F6 z g+ I2 `9 R: V4 iset trade-record-current4 F% ]: \( G7 M. H
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ O' J3 }8 {# L]) z1 X8 l5 W! m- B& B0 e' L
* V6 Q& d7 t# ]) B
8 K( {7 I3 ~; r, Gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& d4 p" y/ o" j6 W8 T3 D
" b' C/ y h7 e
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 F. f! @" U: };;将此次交易的记录加入到customer的trade-record-all中5 o, I c3 v% z0 z9 I# h; X# j3 i
end
7 Z6 c4 y% {% J9 n
' ?$ b( u; r# ?2 Y" v/ U' z# }to update-local-reputation
% Y: w* O5 H/ e6 S$ ]) ?: X# Yset [trade-record-one-len] of myself length [trade-record-one] of myself. h3 N4 c& c. G! u0 W
2 K& S8 Y, L- T
5 |/ Y3 d$ h$ ~2 u
;;if [trade-record-one-len] of myself > 3
F! x+ W+ ]2 i% \, C, m$ Uupdate-neighbor-total
; u2 A7 e C% {;;更新邻居节点的数目,在此进行
: b1 o* K4 b$ B; e. T7 zlet i 3
/ d: l3 E; T4 W+ b2 u% Z4 Plet sum-time 0
3 V5 z4 C- `) F1 k. I: Zwhile[i < [trade-record-one-len] of myself]
" [! }4 T; p# M+ e* b5 o: \5 c& a2 e[8 y0 U5 I5 ]3 d9 K
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# |6 h/ y4 A* p* Q- `8 B% O
set i
. D! U" e$ A6 B. l$ M( i + 1)
* ~5 b9 {* Q$ A# Z; z) E]. N1 t+ a) [9 F5 q1 A
let j 3
' e G! y$ e4 Wlet sum-money 0
, f' j$ f( R% ^0 J/ ?5 `while[j < [trade-record-one-len] of myself]9 [8 j2 I! z# A
[
1 O w& G; S! C% Vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)* v4 _# j$ f+ R& K- @
set j
# ^: y& \/ M( h2 a1 r5 C' F7 n( j + 1)6 p, X& D! p4 S& Y$ {0 g* a
]
1 {5 B/ v6 c* V: ]let k 31 j# r* L4 P3 [ c+ T# l) z3 ~5 [% U
let power 0' k4 {/ Q4 h2 D# z
let local 05 C0 v& ^% K6 E: l1 m8 e3 j
while [k <[trade-record-one-len] of myself]
$ b- I! n0 o. G[# R' t& ]& d1 }) T
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) * z9 v# e9 H, {5 H1 N7 o
set k (k + 1)! ]/ ~1 o- n0 R9 Q( l0 Z
]
5 ?" i7 A0 T/ ?4 H5 Wset [local-reputation] of myself (local)
$ j5 K9 J' v7 E% tend. I* H6 l( t9 m
* N5 S! l% U5 Pto update-neighbor-total
7 S( K- y$ [ Y5 s0 g5 ?: E6 n
9 x3 \- \, F4 s" N2 tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& o9 R5 B& @; Z7 [9 Y
. l) l2 Z) C- V1 ]* q( A) ]
6 ]0 M: T2 H; D' x) Z& m3 |0 R5 Dend
& z- d$ D. j$ T" w5 a' L" K" D: P! H7 b# ]. g/ d# N3 g! h4 `
to update-credibility-ijl 0 D$ a+ s" c" D
' R- T7 W) g* e' }: E;;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。% f9 S8 @4 @* |: I) {) ]4 L
let l 0. _! u3 n* s8 N9 w, R7 ^
while[ l < people ]/ k9 f2 A3 y; Y
;;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& X' S7 W9 B9 Q- v, O( |# y
[
# P, {- W& a8 X/ Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
0 g, u- S5 {9 u0 z5 z5 C3 [5 wif (trade-record-one-j-l-len > 3)
) m9 N) U0 [! _& B! i, \[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
z+ T. b7 Z- Elet i 3
0 y: m! Z) v) Q: H' t. X+ N, R' }let sum-time 0
3 E) E% @' }- Zwhile[i < trade-record-one-len]
9 n6 Y- B' M7 t! z6 V[
$ s6 H0 d5 k. U: v2 v' j' U2 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 a: Q+ x6 h/ o2 H1 K( Tset i, w% N n( `% q
( i + 1)
^0 @) `, W' o7 @- f& i]
0 l v9 W" s% p6 K( O7 H; G. }. ^0 Z/ dlet credibility-i-j-l 0
% X& o# r' q4 ];;i评价(j对jl的评价)
$ F1 G2 K3 |* i7 a: b, O# elet j 3
: {& b4 Y& A/ o/ ^1 o0 A1 tlet k 4: G% m {. _& s0 U, k) q/ v; G% b8 @8 \
while[j < trade-record-one-len]8 A: q6 _% D' L; q, U, S1 M
[' c' O& S" {% S0 ~' f- o4 ~% 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
" e9 n, w6 D( l9 F: w, d* J. I$ t* {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' i6 }* h, ?0 y+ K- J0 Pset j
5 l! T7 \/ L! z6 \7 x( j + 1)
2 H2 w& r/ u) _]$ E3 |" u% U' D+ i/ G8 J4 ?
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& w/ u( W+ \3 \0 z8 S% q& g$ F
0 c& Z, v0 @! @; z. H# Z9 K) _4 i" x# o9 v6 i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) H6 H/ A z4 T5 T6 v;;及时更新i对l的评价质量的评价! }" U! i1 B* }; H+ V
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# B; ~ }$ \1 l2 j7 h1 Dset l (l + 1)
' D1 A z8 z) r$ h: e]
2 o" h- Y* K; k( H. e/ vend
; M: c4 S* W! [- u$ m1 r2 t2 [7 \* I6 W3 B8 R C
to update-credibility-list
# \' q+ ?, T9 V0 vlet i 0
0 q! n w( V# V' E! r W3 V) rwhile[i < people]% U. E( v5 q- H
[
7 a+ k5 p- a' D& M* }let j 0
+ j9 ]0 [* ? K, w5 O5 Q* S* e0 llet note 07 `4 w; [7 ~3 t3 ~
let k 0
1 r% h7 y6 \4 s ^4 k;;计作出过评价的邻居节点的数目; g1 q2 R, s% u# n5 U$ F5 F
while[j < people]
! ?8 H; A; x0 _* N[0 q. M% X; a4 [2 V
if (item j( [credibility] of turtle (i + 1)) != -1)
2 n. f7 A5 B% p9 @7 i/ G e;;判断是否给本turtle的评价质量做出过评价的节点% i# w9 X, r; G7 @7 k
[set note (note + item j ([credibility]of turtle (i + 1)))
6 K) J7 G# H; f% E) ~$ c5 x/ S;;*(exp (-(people - 2)))/(people - 2))]% n$ q1 o, I2 Y! H1 _; Y
set k (k + 1)2 p% O' F6 w( Q9 X
]
+ d/ \, z$ u$ {5 lset j (j + 1)
0 M9 x2 n. @; j: X; S]
- k; q6 A0 J# [( ?4 Z* P Cset note (note *(exp (- (1 / k)))/ k)
/ ~' ^: Z) R& @+ U$ Fset credibility-list (replace-item i credibility-list note), ]( Q4 }# S: r& E1 ^
set i (i + 1)# _% U( ^0 E' i" f' T4 `( k
]7 b) |; b7 O6 Y# a) X& x0 l! j
end
2 k4 \: P7 Y3 M4 ]- e, ~& ~- ?- V* p- [* A
to update-global-reputation-list& p0 V4 g* m% k' e
let j 0
$ ^# {( {1 K: V) swhile[j < people]; }8 j1 i2 x* Q5 u' @
[2 T* T8 x8 [' z" ?
let new 0& Y( T% D. @5 ^, J& p' A3 Y+ ?' w
;;暂存新的一个全局声誉4 G) V8 z; c& w& y0 v: S- d( W. ]
let i 0
m% M( X7 L/ Y/ Ylet sum-money 0( k1 V" _$ e5 J5 }1 l4 N% T
let credibility-money 0
5 G5 a$ j# u8 f2 L/ rwhile [i < people]
' }; G7 ?) D h! Z[# N# V0 z+ m4 S: X+ D
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
V9 D$ }3 u0 S# I. rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ s9 T6 T, }( o+ E2 E9 Wset i (i + 1)! x. n% U$ L! `5 U
]
& h3 K' R4 T- v& N' c: l X) Y8 ilet k 0& C& i5 h2 n w! \
let new1 0
0 p" ~! D1 a% [9 o& hwhile [k < people]
/ |1 K$ Q! U Q/ |[
* M+ w. u; A( \" w/ Sset 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)
9 m# U: K' G! Q9 d* Z' |' sset k (k + 1)2 h8 K- o8 y) n$ ]2 u( f
]
* M- d4 U- p$ Bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( T" g) P- M# s9 r% E
set global-reputation-list (replace-item j global-reputation-list new)# u! ?; F1 J2 \* B$ F
set j (j + 1) v+ S+ v/ _7 f6 ]3 i" P1 Z
]) N+ C) V1 \, W/ g- f
end5 @' N3 p4 \) g4 q
9 _2 w1 Q6 o6 d' S w! ]. P' c" q; z0 c) R3 ~9 i# _
5 |) P, S; f9 N1 J Jto get-color- u3 Q4 X% b% `
, a r A' w! Xset color blue- F, S* n3 a7 h! T
end8 C/ M1 }) S- T9 U0 K9 R7 J
& S; r: L7 E5 r- q7 c1 J- Y, ?to poll-class6 z% R3 P4 S* \& C) y3 c9 C
end3 q2 Z" ~$ V8 x% M1 }9 W/ J
2 p8 c* z) W: R7 Hto setup-plot1
p2 a& r- I6 {8 ^) g4 L/ [/ R) m$ j g
set-current-plot "Trends-of-Local-reputation" M% p5 D/ h$ L* S9 d) v' @$ S% S8 p
/ _0 ^: F u3 C; r% P
set-plot-x-range 0 xmax
. u4 {/ t0 l9 Y1 B, p# }2 {: w4 D) j+ b* T) Z/ ?
set-plot-y-range 0.0 ymax- r5 ~. i+ D n% b Y5 M
end+ K" {4 S/ I6 z, t Y
7 c, G' i" z8 A9 x( B/ n0 {
to setup-plot2" n) H, U. p4 d& X
8 ^" ^" _1 h3 D+ x! I* Y3 bset-current-plot "Trends-of-global-reputation"
+ Z! |+ Z" }, {3 P! K7 `2 w9 [
( D/ p( Q# C, X: G1 sset-plot-x-range 0 xmax
0 W' D& i0 c" x* o) F4 Q! f4 h1 S6 A3 u+ W" O# u
set-plot-y-range 0.0 ymax, Q3 ]$ \$ U5 \9 ?% C8 F
end
8 l0 Y% p0 Z- [- M3 \* Y( B/ [5 Z5 g% w* \
to setup-plot3
* w( n& t9 s( a( h4 j( g" A. n9 f# B9 Y5 R& b- S, v
set-current-plot "Trends-of-credibility"
0 n2 V* l" A3 z! b2 C3 |+ B" V/ t, `7 A, k3 u
set-plot-x-range 0 xmax9 D* A. e( a# i' p0 }
" ]: T' x) `' V& u& T _) @set-plot-y-range 0.0 ymax
4 Q: o( t- U# o8 \end
: V+ f+ t; _; h- Z+ L
% Y! w, K8 w' Eto do-plots
* A! U0 C2 Y3 W1 [set-current-plot "Trends-of-Local-reputation"
- c1 G" D9 R* M, p0 c- cset-current-plot-pen "Honest service"9 e! l; ]8 V! W' @9 v
end8 E$ B/ Q. o$ e1 R
. J8 a+ T. ~8 ~4 u2 ^9 e! D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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