|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
* [( e8 g/ b/ [0 t# f' r* z# eglobals[4 C% s2 W+ T( I" s8 L3 P" \& h
xmax
' B5 z! g$ Z' p8 M7 M7 Pymax) _5 G8 h3 F0 I8 T
global-reputation-list1 R( _/ B/ b' [ o8 ~& [, a
_7 v# q2 j& k4 {. v, W0 {9 k
;;每一个turtle的全局声誉都存在此LIST中 A) g& H1 P1 E8 P2 k- ~5 R2 E& i5 |
credibility-list( v4 W' n# q l# ]) W
;;每一个turtle的评价可信度
9 e3 j: E6 V3 P9 M7 } E! jhonest-service" d" H) n0 u# y& I+ L- P
unhonest-service1 b) x4 U4 J6 s4 v. f* W* M2 Q
oscillation
( P" @- C( R5 _" B" [/ o% arand-dynamic
2 {( ?4 d: ~2 ~# r; I# R]& i/ |/ v5 M8 `5 }% k8 D7 \. ~
$ w5 [7 b4 i! Q5 S# L, kturtles-own[5 s g/ S# S! k" e! y, ]3 a. j
trade-record-all
' Y, E1 H9 |, A- H;;a list of lists,由trade-record-one组成
( t7 C, V" ^& p, N" s) Ltrade-record-one1 Y+ c) |/ p0 k! {) |
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. W8 x9 s. l3 r/ H
* ~4 a: W; P% J3 w' J+ E! ]2 P
;;[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]]
3 \+ i( l3 R( m% S1 [5 [% Utrade-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 i- o- o$ {4 a% [& e7 K2 [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
" c S) _9 A& rneighbor-total5 y7 R' H, x e, v) q2 m6 o
;;记录该turtle的邻居节点的数目 } h f: z8 O9 e6 S% }5 l0 j2 q
trade-time
7 K6 Y8 D8 K- D$ g( L;;当前发生交易的turtle的交易时间4 ~. j7 g( z4 g
appraise-give
9 L2 o' a+ _# u7 Z" q7 \+ W H$ T;;当前发生交易时给出的评价
' s' R0 ~. C4 c( E6 Gappraise-receive# I& ^& Q5 v) W4 r3 [
;;当前发生交易时收到的评价
. N$ s6 i) }: m' ^ v1 \ I! r* tappraise-time
5 i! F5 f) ?6 O" C;;当前发生交易时的评价时间
% [* i" O/ g4 a$ {local-reputation-now;;此次交易后相对于对方turtle的局部声誉
& W3 |$ O0 j: y3 J y& itrade-times-total) d( B3 y# {# K: a0 o( m% @& k3 C
;;与当前turtle的交易总次数' C5 r1 T; x5 q/ E1 R/ P) g% ^/ m. p
trade-money-total
. l$ J& M2 E& g! C- s" f;;与当前turtle的交易总金额
4 o* n9 E* ]: @9 d/ Flocal-reputation8 f# d1 m7 n0 y
global-reputation
: L" R+ S3 {$ Dcredibility4 W( R! {0 ?! S/ r# f- c! v6 u
;;评价可信度,每次交易后都需要更新
' P/ Z1 S6 h! N" N( scredibility-all1 U! s/ K: l% W# S/ j! y
;;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
8 D7 M" z" |- c" h: e3 Z% T- `% \' A
; Q) \" X1 X1 Q6 ?; n;;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
5 g) j Z- i: Zcredibility-one
/ [+ P# Y) m7 o8 N5 g! A2 v8 G- g;;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4 X: G# c+ p9 Q' x% h; h' J/ u
global-proportion+ j: [/ A7 y8 H0 r' U4 n- h
customer
4 F: V( v9 |, k- f7 S. v; z5 j# Ncustomer-no ^! Z. J$ j2 y, l
trust-ok
1 q5 m8 e7 `5 D) K2 i4 K0 ?trade-record-one-len;;trade-record-one的长度
+ \& D) ]1 d+ F]- c4 f S( \) p3 D3 O3 }+ g+ q: v, ?1 k
" @+ L- }# B H5 a @- i
;;setup procedure$ H9 }3 J F4 b; G6 O9 W) i
7 @6 ?* `# a( |7 Tto setup1 ^$ n3 f6 L6 f$ X( b8 b4 ^
8 _4 a5 B- z( K, P( Gca& Z& k: v/ y4 F- l5 E; ^
8 J- o5 z0 M% R" ]* y7 Rinitialize-settings1 Y& t9 G# F: R% P q
6 I9 ~" U5 z! {# e
crt people [setup-turtles]
2 g. u% ^2 v) l, ~' D+ ~( U: x/ C- O V( |5 P( Q
reset-timer! P. B5 P/ k5 X
5 J$ T6 S, r% p9 c8 D" B1 k2 v
poll-class
0 B) F4 E, h( B! _( Y, @, H+ |' E" l, W4 l% @" H
setup-plots+ e2 r6 g' v- T. J1 _* U0 A
& d$ F1 g2 K/ j3 b
do-plots
o. C8 ~; t7 f# Z9 iend
2 F. i+ ?" i s! X) U0 L; q8 i# M2 y: d' ]! D! N
to initialize-settings+ J4 E6 k X! \8 s+ ^6 R
4 G& T' Z: K3 x
set global-reputation-list []$ |4 Q- H$ i. B
1 h& p# W8 G% A' w7 {
set credibility-list n-values people [0.5]
8 Y+ J9 X0 ?+ A8 I4 U: C; B
' ~/ l% z: g# v" ]set honest-service 03 B9 y6 G2 \: B7 Y
1 y0 G$ y; d+ q! N) a
set unhonest-service 0
1 V' X$ ?7 G: o( R! X/ i0 Q, w/ o/ c/ S! e0 A% C
set oscillation 0 X0 y3 G# G- h+ Q
$ m0 z u2 ~" [2 A% `+ xset rand-dynamic 0$ H N& m, S4 E! A- N# t/ B" M
end5 k/ w- c* p `
! h2 s& c( Y0 c' @8 }" K
to setup-turtles
$ s+ c+ O1 R8 c& ~2 R& ?$ z& lset shape "person"
: [9 U h k6 M9 y/ f$ Gsetxy random-xcor random-ycor, A; X% z% M F6 V# f
set trade-record-one []
2 w7 j( n2 H9 [- \$ N1 v3 D0 a9 k6 x( x4 d; R
set trade-record-all n-values people [(list (? + 1) 0 0)] : p L/ ^2 w* _
2 y1 M* a* C5 y; p) M
set trade-record-current []: V2 t( F' L; G' Y3 q$ k
set credibility-receive []+ l8 G8 w8 U6 y0 L
set local-reputation 0.53 o' d s3 Y8 d
set neighbor-total 08 T/ A/ S- f3 i. e* O& _
set trade-times-total 07 K9 P$ |+ W% u9 S2 J: o$ k3 _
set trade-money-total 0; F, r# s5 I( U7 V
set customer nobody( t7 q- ]% d& a* M% o, N
set credibility-all n-values people [creat-credibility]
2 ?" `8 w, ~4 w9 R4 S( N8 H/ Tset credibility n-values people [-1]2 f) G6 d( F$ E& H
get-color
" @, X- @5 s: P) E( y( L1 G+ D) T. s7 d8 H" g$ F- m( M
end
0 [# o: y/ ^) _; b. Y Z" d1 j# G( Q
4 V+ V0 p. B5 E5 j6 Bto-report creat-credibility+ Q2 n/ X) F3 v1 V, I( m/ v
report n-values people [0.5]3 z! ~% E( l, N& A+ Z# | x! d
end% [( M R5 a; S0 p/ M( D( Q7 d
0 d3 ^0 T, @. r' J* [' T# p6 A( L
to setup-plots
& n+ c; ?& t4 e B$ Z5 u. h3 }/ {- ~6 `5 T+ C6 G
set xmax 302 ?3 o' F9 F* `; k ~3 Y
- z$ n* Y! f# G8 o9 x; mset ymax 1.0
" y6 p$ B9 ^% |' d- I6 w3 q
' e% d- H' i% vclear-all-plots1 B9 R/ T5 ~1 C5 s4 q
$ |, p! g. J( S7 m3 G% Hsetup-plot14 K1 S2 p4 k! A/ a
3 {2 H4 H3 g# u! w7 Lsetup-plot27 J; E. M5 f; U6 c* K
9 E/ U* d+ G$ m% xsetup-plot3. a* R+ t$ z( b6 R2 H
end( s- V( i- n: t5 y
) G/ `; P7 A3 x4 D5 P7 r
;;run time procedures
6 C: S3 ~3 S; V2 U; x r
6 h1 D/ ]8 }% n) lto go
; p. g0 z9 s1 O) Y) a2 y9 ^# S8 D% ~( B' P' v
ask turtles [do-business]
L0 I% {/ L+ e0 nend
$ w+ M- L% r( M1 _; _- G8 a( C. B5 c$ F. I8 {' `
to do-business $ a! i5 p+ ]0 ~
0 M9 k1 X, k& U' ]. Z6 a" |* I& b
9 f. {6 D& q3 ?: d& a
rt random 360
/ z6 }) f( I6 H) x2 {% M0 a5 P) b/ ?8 h6 ?% F
fd 13 u! x+ _: N# T$ H: Z, e4 y& F
0 i- Y" K! |5 Q; r: H5 l4 ^' l& Difelse(other turtles-here != nobody)[
: A* ?3 d! Z! S' x, G8 B E1 S1 t; U
/ J. Y; L# H- n' fset customer one-of other turtles-here: W5 w/ N% F- c
5 j. B% f1 h, n. E; {' `$ p;; set [customer] of customer myself- B: _- R7 m) R4 l5 e
8 d: e3 `2 A) M& `% C1 K
set [trade-record-one] of self item (([who] of customer) - 1)
3 F* {' U! B& B+ [[trade-record-all]of self$ u5 {3 W5 J8 q# o7 h
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
3 k: M L9 } ?' o* g$ I
4 D1 w7 d9 ], L/ [set [trade-record-one] of customer item (([who] of self) - 1)
: T" A1 V2 W! c[trade-record-all]of customer$ N- v' B" ^# l; I, `
1 s% m5 h) Y/ a
set [trade-record-one-len] of self length [trade-record-one] of self9 Z( G2 M) l3 d9 ]
; j& ]' C2 h0 N# s, o m) L0 u
set trade-record-current( list (timer) (random money-upper-limit))1 k! e+ D0 z v% l" c
$ B* E) \3 Z/ [: z% k% M
ask self [do-trust]
8 }; i' m3 g9 u2 Y/ h4 G;;先求i对j的信任度9 G2 C ? v. {$ J9 N5 Q7 C
" h; F) ~; s" n! K
if ([trust-ok] of self)
9 A; t C7 Z1 Z; |, {5 n- T" m;;根据i对j的信任度来决定是否与j进行交易[
; P1 Y) M) P$ M" ~* ~7 u& uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
* O. F, a& g3 l1 d/ x+ B( s
, l! [6 A# W, Y9 `5 s' }[, }4 B9 k- Y4 X% r: q
( `+ Q" f' P b- q& |' h) |
do-trade
; p! v3 T4 {% u9 Y4 h) ]: V
1 p$ U% d4 M ~- cupdate-credibility-ijl
: \$ I( N4 v# f
, J5 U/ G4 P5 H' Mupdate-credibility-list
3 C3 j6 V. n1 [9 s! a, ~; b" o$ P. r
: j6 s0 r4 J7 N* ^
0 F8 h/ g3 _/ \! h# {update-global-reputation-list1 a) e% ~0 u Z( A- ^* T* [8 K
7 T9 a$ I5 K. r- B
poll-class
9 `7 J y9 s: u
0 x( {7 E8 s& ~' Z) y/ V: l4 wget-color
5 i5 K; c% y, I7 V& D
+ d' B' q* k1 Y]]
8 e, I1 v: x: I8 ^ r' g. s; ?* @2 Z# c7 M- X, g5 D1 S( `
;;如果所得的信任度满足条件,则进行交易/ s5 A) f9 K- c) a$ L2 F! u# _
/ m1 Q4 t$ k6 _; P* ?[
s( ~+ _# h" j5 D3 C' ~; A% I: M3 Q) t) t& f
rt random 360
+ r. P \* }3 k6 G; D0 A1 p8 c
X$ s' D0 _, g6 \' ?fd 1
* \; e9 }3 H/ h: }* }' Q6 a
?* f6 y0 h4 z( \. l# ?5 E]4 o j0 p- b% j1 |9 Y& M* ^+ |
3 ?: a0 \' x& Jend7 a' x2 `& ^. |9 v8 K
: o- x1 |' N5 ^7 B/ U- z
to do-trust
7 w: r |! W/ y4 H7 J. iset trust-ok False
: J" r4 Z6 n1 l0 V6 B- s
4 J" D1 Q# Y( m- }( C/ ]( }6 ~2 _; N% Q s1 I! V8 _ [, p1 H- M
let max-trade-times 0, C2 x( t0 m. P2 |+ K( X% h" g# y
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 N- i( q( X' c& I* ylet max-trade-money 0& y D- `4 G* {# a/ A o: h- ?: P
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; L4 T/ E U1 |& ^& `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* v8 G4 I! F& G
6 _/ K$ Q3 C& A( ^7 H
/ n; v- Q6 {6 e l' rget-global-proportion
+ R8 X( @; {8 b p' [6 u; Y+ alet trust-value
, y' ~9 ]. X: w" T" vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
3 \. \. k }0 `' _2 lif(trust-value > trade-trust-value)
6 K( @# k0 B4 F# Y+ t8 k[set trust-ok true] h% J+ R2 a& C" E" g. V
end
: Z2 u9 o- v, e! F" R; q
) l2 t- n2 w. P1 u# D8 _! `to get-global-proportion
* J, b! z* m$ @2 s0 Fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# k9 i" p' O& v7 @* E" k5 T- N# u[set global-proportion 0]1 T) M; p" `( p8 [6 L
[let i 09 i9 T- _1 C) r. {
let sum-money 07 G; g* |. t3 Z" ]9 H, I% U) X
while[ i < people]5 |% \8 J/ z+ R/ W; {9 U. a
[
9 h% g# U* e: l9 V: nif( length (item i# D* W7 @2 d8 b' N" O6 |8 t
[trade-record-all] of customer) > 3 )
3 G8 n( j9 C- `3 _[
6 X! s8 P# a8 N$ P( _: [set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 t, b3 R0 P) q. H, i7 b5 x* R/ B]
- }0 i2 _8 C9 z9 x]2 Y3 Z/ F2 u( `- E( F
let j 0/ r7 A6 ~/ _) z5 ^
let note 0& K. `# B; s( t5 h, k
while[ j < people]
- j1 ^2 X w/ h[, H: U5 ~% | ~* b4 C' b
if( length (item i
% ^0 e4 P" Q2 U9 }" m[trade-record-all] of customer) > 3 )
( M2 k* Q# ^$ @1 n[
' E. e4 x, ?+ `& k4 _ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ M" P4 B) o% y1 Q: ?) L[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! q7 c& i# X+ X7 B[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 i8 O. P. ~, j3 N- k4 V( Q]. `$ b O% A3 P* R3 [# Z ~* L
]2 E. b7 F _! a+ Z- C* Z U
set global-proportion note+ j3 W6 r o+ c7 a. S1 Q1 _
]
' H: A ]3 u3 v; iend
' S7 ]/ V& ~( E! a& I
5 Y3 {3 h \; w: {7 W0 b" Uto do-trade4 [* E7 o1 G: n5 I+ {& S4 i. L3 B
;;这个过程实际上是给双方作出评价的过程
8 N& h5 S q: ~+ `( Q$ aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) s" n) U+ T7 r7 y+ aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& P4 l( x6 n" k: G& A- Fset trade-record-current lput(timer) trade-record-current% K9 m4 B+ o2 [. M" i; K
;;评价时间
. Q" o+ c7 j* hask myself [$ H* I+ y, U& z! M4 N
update-local-reputation
; l/ K) h; S( J( D: Vset trade-record-current lput([local-reputation] of myself) trade-record-current
" O2 M" X1 l, U& n3 m& d]% {9 L [# {& S+ ^
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 z6 G# z' k' m$ Z2 U9 B
;;将此次交易的记录加入到trade-record-one中
/ |, j5 S$ S- ~! H3 w8 lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! w$ C! b V: f# ilet note (item 2 trade-record-current )
' X I/ q6 t7 P) kset trade-record-current
9 J m3 w5 h6 |(replace-item 2 trade-record-current (item 3 trade-record-current))' t3 j/ n4 b+ @# y B) E: `/ c+ I
set trade-record-current$ r a. V5 U* Z2 ]9 ?
(replace-item 3 trade-record-current note)4 j' R3 g' m: y k. i, W
% q- Y% ^6 G t/ z0 m
, q! B* j- E; {ask customer [
0 l& |3 F( w$ A! ]: bupdate-local-reputation# N Q$ g+ w& O+ ~
set trade-record-current
7 ~2 g! z+ }' U6 e) t(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 k5 j) G9 c) `: K) J; p- z! `% W" p1 I
]' F2 Q; W5 X" m+ Y2 `" i/ {; k
# T- `# v: q( O5 ] t9 E) w) s
$ D. I5 @) @5 B" W V1 I; p- \. \set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 _1 g* b# }& Y( a
# v" T7 E' r6 uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! F9 ], k( s1 x;;将此次交易的记录加入到customer的trade-record-all中
2 v$ s- o) S( J. U' gend
- z: X: ]$ G2 A- h% z" p. I
; L& Y5 |2 h/ Y% ]to update-local-reputation1 p, E& G" j' ]8 G
set [trade-record-one-len] of myself length [trade-record-one] of myself& \9 l: I" L6 N: H* @
; [7 x# y1 _3 y6 D h' Y/ I
1 N8 a6 Z/ ~7 }7 d9 ~; x;;if [trade-record-one-len] of myself > 3 " n+ k( }* L+ f8 B
update-neighbor-total
6 W) D- ^1 a* g6 |+ C;;更新邻居节点的数目,在此进行
( @( Q* i; E0 J: U; p. Klet i 3
: J- B" }. a" u( b: t, \1 elet sum-time 0# h" w$ ~& E! T
while[i < [trade-record-one-len] of myself]
& D1 Z) ~3 S+ v2 o- F5 R9 B[! o- ]" X% S, f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! F# s4 a' X. E* ~2 s
set i. o6 ^* \9 ]( i& _! I
( i + 1)
@+ K) c4 h& @* B8 Q4 G] I5 q5 d; L+ \( D# M5 i t
let j 3
+ p9 e5 R3 `7 u3 H2 R$ `7 a& S8 B) e% Elet sum-money 0
z" N ^1 S+ A. g* t1 i4 L& awhile[j < [trade-record-one-len] of myself]( A' g. E/ Z$ B9 y
[ c: k, {4 S) {" a! f3 [
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)
; a& z: k! n2 w+ O8 V& n# Bset j
4 I& z6 |- {- G" I! J, U7 c0 q& Y( j + 1)7 U) ~5 @- P& i4 ?
]
( J+ K X b% m+ q# vlet k 3
c- I$ O& N8 z) {: H2 R7 r. dlet power 0
G, R0 m$ Q5 M! B( _6 t& B5 C$ B- ~0 [let local 0
, v) I4 T) j' y3 q, r6 c; i% p3 Kwhile [k <[trade-record-one-len] of myself]
8 ?6 f4 K* F3 U8 H1 g[& ]$ K0 Y. f6 P" F+ C6 e$ E2 b' g
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) / Z3 S& L! B* I. _! g' ^5 R
set k (k + 1)
" v$ u# Q% s1 w( n$ ?1 l. u]6 A5 T! b0 |! Y6 I5 w4 x" P+ G% ?
set [local-reputation] of myself (local)
4 Q$ t2 y4 E8 {8 s# A5 fend
7 J% b6 ^% A* B+ O4 W$ \
% k3 f9 z7 ]- c5 u3 c: Eto update-neighbor-total$ B6 Z2 A! N7 N, v4 P- u' p: v. t$ w
) Y- r4 F( Y- R2 aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( S6 z* M' n! K6 e3 ~ i
4 V0 U4 ^4 C9 J8 l! d, D9 z) T/ v8 l, w' Z1 d' U' R) B
end
( F( q$ ]& b- y. O% D4 O: k) g4 u& @9 ~: i' }7 d* |! w3 G
to update-credibility-ijl - E3 i- _- K. }$ O- k! q s
i. _& H, k z1 a+ z* K
;;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。
- D" t" ^. x9 h: blet l 0: M: Y. @1 c. o# y0 t+ e
while[ l < people ]
) `7 c: M4 f5 w9 K6 B @;;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- ?. O! S& h/ m- x6 Y/ D6 i1 Z
[
6 t% B0 o' G7 k/ ]9 F5 n" ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ @! F/ R z2 X5 Y4 p/ w! Tif (trade-record-one-j-l-len > 3); \% R3 e( \$ ]4 P* x
[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
; }5 b6 r" `3 G( z1 tlet i 3* ?9 N1 P: }' [8 x% d, m' @
let sum-time 0' c) U2 u) F& E1 r- |0 g* |1 h
while[i < trade-record-one-len]" M: i# `- x) g9 U" |; L0 D r
[5 p0 O' h& P7 x4 V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! x/ _0 a; @7 Z* F4 N! h) y; O
set i
5 i F, i/ ]( H* p+ h( i + 1), r# L3 G3 n7 [' U2 z
]4 _4 z9 n. z* |2 {
let credibility-i-j-l 0# Y! e5 a! l5 c) `8 V9 A
;;i评价(j对jl的评价): p# m5 B; n8 ^ {+ a' @+ c
let j 3
5 o9 t. U, F6 D+ D% T0 k( vlet k 45 @ {7 o# b% G" s# k& {# E
while[j < trade-record-one-len]7 N+ ]1 }1 p2 h$ a8 l0 u. E( n
[$ C- M( G m+ r4 j& E
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: _4 v7 W: X0 s( M
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)" { v& O) k$ w7 o; h9 x; [
set j( v& Y* f. A) b( H+ `
( j + 1)
' g5 J, j: l1 k3 f]) u2 U* q4 C' G0 J8 G
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 ))* Q3 m; u. Z V: C4 c" n8 D
) l2 E# E, o5 O6 U2 v
- |! v: ^- f1 H& g& dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) B! W3 [2 R' q C
;;及时更新i对l的评价质量的评价! n5 [2 m; y8 R3 i% N% N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ M; ~& Y/ q7 M2 N$ G; Yset l (l + 1)3 \8 |# P% o2 ~& K
]
: M) j( p7 G$ ^# ~7 xend2 J' O/ M" |$ E) Q- q, w/ x- J
% x+ T& L3 F7 N' B& T# C% o
to update-credibility-list$ w2 e1 N( H. x# S- Q% Z* c0 ?$ u
let i 0
5 }9 C+ w; g. }! K- P3 i; |1 I, b2 Bwhile[i < people]
* d# i; H ^) g9 D; l u; }5 v[& a J# Z0 X& _
let j 0
* Y/ |, W' \$ _let note 0
4 f) O, x, R& `let k 0
6 {, z9 z3 J) Y/ R, {' V0 f;;计作出过评价的邻居节点的数目) S- t" h% ?" {' c
while[j < people]$ P b, \, w8 o) M
[
' i% v" x& J( n+ r+ e7 k0 ?if (item j( [credibility] of turtle (i + 1)) != -1)
+ S0 I7 L6 ?/ ^$ f5 l+ ?& H;;判断是否给本turtle的评价质量做出过评价的节点) X1 x" D/ F4 F* N7 f
[set note (note + item j ([credibility]of turtle (i + 1)))8 k, S3 N% |( M
;;*(exp (-(people - 2)))/(people - 2))]
" `* M, x9 T% k, g) q/ |set k (k + 1)
1 Y: q0 Z7 k2 |0 S], z K% t) T Y
set j (j + 1)' b! t: R5 H& S8 V
]
3 Y# V# u: X; U$ X) Q4 g2 y. o3 cset note (note *(exp (- (1 / k)))/ k)
( e6 Z/ v' N2 g4 Z. {set credibility-list (replace-item i credibility-list note)
3 b! `7 O8 R% U ]. x V hset i (i + 1)
2 H! R/ [0 G; s3 y) @2 `) F) ~+ ~]! P" H/ c( d$ K; j$ w
end
) p! a6 z" n2 `
; y. X! w4 |8 c8 ^8 wto update-global-reputation-list
9 j9 ]4 ]7 M; M9 D5 X. u7 b) Elet j 0
8 y* `% h' j; }8 z0 { z3 i- Iwhile[j < people]
! ~& S! ?2 ?3 v) @+ j0 g: l[
( @& ]* n8 n- ^- p- S6 plet new 0. o1 r' |- H {) t3 p2 R) A
;;暂存新的一个全局声誉
! j, n( e [5 wlet i 0" l5 Y9 _0 N s y
let sum-money 0- k7 x& S+ y' B, y1 T
let credibility-money 0+ p. X7 f9 L) t7 I! @- u
while [i < people]
9 \- w0 f s) Q[
& e7 r# r! B( p* ^* _set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" S* b7 D. L! S1 V2 @, w' Y3 f
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& T, O* n: j& o4 z- k& R: E$ x
set i (i + 1): t* D" c; Y* ]- k+ c: h- n
]
1 _3 N& e, |8 y$ flet k 0
2 I0 N% x# T w9 z, d, h2 {let new1 0
$ m) A0 ?8 Y* rwhile [k < people]
I0 x; Q1 k Z. f2 K/ [" i[5 r" A/ j& {6 f2 P
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), {- B8 e0 s _. p8 y+ f
set k (k + 1)% c% W1 C6 f0 x
], ~3 U v' R+ M, ~5 V+ }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
. t- i4 Q4 [$ y) w& C5 y) kset global-reputation-list (replace-item j global-reputation-list new)
- k; S- ^* R. I( dset j (j + 1)5 \" e1 T4 w1 W" J4 k) I! w9 _
]
2 G8 A1 N, H5 Q( z( S* x. nend
* ~$ Y! p3 _' [0 L, P; T; v* z: M K% r; J4 e
9 C) d+ }. F; ?8 [9 A# P3 e4 y3 }% \8 [% d
to get-color
4 L: _( b! q& K4 _) u. s9 h) c, m7 T4 r0 a1 w, k3 N
set color blue
2 G& _2 }( Z% a% o ~( d0 E3 Hend5 q: @+ E0 ]2 d& w( `: h7 V
j" o* T9 R0 {% Y0 ]to poll-class
6 t# }1 @ ~& E- i2 aend1 b9 v6 ~' n; n7 w8 a7 }
. T2 ?$ ]& ]/ p8 B
to setup-plot19 H, B4 R+ ~4 I& j7 B" o
, R+ y" n& J8 K% U4 M
set-current-plot "Trends-of-Local-reputation". @2 [3 e& [' X1 A
% x+ M& ?+ |: c% B( sset-plot-x-range 0 xmax
" a4 P0 D0 F, j- _/ d) P( O0 v! w/ L6 ?. Y) J4 u- j1 w
set-plot-y-range 0.0 ymax6 E. L9 h: v* F ?' C
end
9 k- a7 F9 [4 q+ }8 f5 D4 O5 ?, ?: J9 {+ R& S) G
to setup-plot2
2 F! i5 c) v0 V4 Q2 J, F" U6 q0 G# x& h/ V8 T! O
set-current-plot "Trends-of-global-reputation"/ S: Q0 o. p- l1 H5 B- S+ a) w! ?
4 Z' u* ]: ] w7 l
set-plot-x-range 0 xmax' u/ |* f/ j; L
7 ?; i: Z) `3 Y, Y. C- \" X( aset-plot-y-range 0.0 ymax
5 m/ }/ n9 i1 }6 ^end9 s/ M3 H: n" X4 u. i
+ {( O+ Q4 e$ g" A% D/ p( N' qto setup-plot3
" \* I5 X* M3 Z% ?! I% ?5 o9 x, F6 s: ]
set-current-plot "Trends-of-credibility"
' C+ a3 I1 [" ?6 |, N6 ^. m8 d& O, u" k4 k; H9 u" c
set-plot-x-range 0 xmax" A/ L) M( d# c5 v. B
/ ]6 T, b6 V" \+ ]$ dset-plot-y-range 0.0 ymax
" k% L6 Q! ?: Fend
4 m9 |, @8 ~4 L- N) r. k) a4 f. X+ g9 v! S( w* G8 S0 E; q/ I( [
to do-plots
3 ^5 M; o5 Z1 w' ~set-current-plot "Trends-of-Local-reputation"* U( f# @' I, b$ T
set-current-plot-pen "Honest service"
/ D7 h& S6 m. f' Jend6 `9 Q* u. Q) s, P
8 ^3 S E0 F1 ~) n, e9 c[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|