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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
# a8 R3 U: ~. |0 J' p) q4 Y4 Jglobals[% \) r/ w( _1 i2 g( j' _
xmax
0 G' ?' M) k$ b( d* Nymax
|5 ]! V, f* o( R& R( b# vglobal-reputation-list
2 p/ G" D, e* c R' U5 q; P; q" G' l
;;每一个turtle的全局声誉都存在此LIST中2 s$ b' _. {, D( x
credibility-list6 D' i5 c) V* X3 e# ]( q: i
;;每一个turtle的评价可信度
1 y+ L, d# h8 R% ~! G, `/ f& ahonest-service
' u. f. f4 i1 p) H( dunhonest-service2 O8 O$ [4 S/ D6 n
oscillation
9 Y) H5 K( D- C% Z. h% Prand-dynamic
9 e) n* n+ o. ?- N$ m5 M) n% ~5 j]* v- A. C6 ~7 m5 n; Y9 a; x" G+ R a( f
( o9 `9 U8 `5 \9 ]- i* g# o; f- Q
turtles-own[
3 k5 M8 i* A2 O, p6 {trade-record-all' r4 a) G! I* i& j( Q* F0 x: C
;;a list of lists,由trade-record-one组成# [) R7 o: G+ u. x4 j; j& P
trade-record-one
5 r$ O6 H% J/ U% ?2 _;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
$ n0 h* Q6 o( f$ V1 |
" n4 d- h1 w$ V1 M9 t$ }! V+ n' t;;[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]]7 @- j; j3 z% I9 [% z. B
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]% c% l5 l1 @* ]8 B9 q0 w9 q: 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list2 D! i! f! H; }6 S1 K
neighbor-total
) ]; z9 g, K) d! O4 V9 f;;记录该turtle的邻居节点的数目* |# P% a3 i0 F+ e
trade-time6 \7 r( k6 o6 Q( K2 v
;;当前发生交易的turtle的交易时间
. I2 `6 _, Z3 v6 M) T1 Sappraise-give( s+ [2 @7 Z( I# l5 d
;;当前发生交易时给出的评价
0 X& E+ t t; J+ R2 j2 E- c9 Tappraise-receive+ h& Y! X; @! F" v1 A
;;当前发生交易时收到的评价3 k" Y+ m' y1 T8 a4 U
appraise-time
0 h G/ w- b6 y) @6 `;;当前发生交易时的评价时间
3 @3 {1 `, W+ O1 zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉% T- v$ g$ m4 z9 {
trade-times-total
0 d; ?# Z/ k9 ]0 g1 g;;与当前turtle的交易总次数
! E6 R8 I) N: vtrade-money-total
# ?0 B; J, B% u7 s5 E2 Q+ U7 c;;与当前turtle的交易总金额8 `+ H$ u K8 k# @
local-reputation
" g; V! f: d9 `+ Y& Oglobal-reputation7 a9 u, t) s3 T8 ?) T
credibility# e7 I+ G0 n5 i
;;评价可信度,每次交易后都需要更新
9 V0 ^! s4 ]) s8 O$ a; i L: Ucredibility-all: X: u) ^/ X6 @. A4 l) |: A0 f
;;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
7 K) `3 J- }( v: v: J/ x- z* W8 B& W" p$ D% x6 V! m. M
;;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
' \: I& k# I; j! m' ucredibility-one
1 t; z9 a. y- F0 u9 U# w( o5 w;;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
! f. a9 d# d( W- d- @& w5 l) e$ Wglobal-proportion
: {* U+ A* Y; N& a( B- |customer4 A! ?/ Y* ^4 n" F. ^) f+ U
customer-no
4 V" {2 ]" g9 |; O$ Ftrust-ok! [% R( J8 S' W6 T. B) c4 Q1 g
trade-record-one-len;;trade-record-one的长度
/ N' B' e0 A8 c- c]3 c6 A2 I( i" W4 N4 ]0 t+ b3 J7 z, F
9 c9 p; D$ _' Y# F6 b+ H. K2 d;;setup procedure% k6 W/ O1 ?: G4 m
& f: b+ q. B' q- z* j( t7 v3 a
to setup
' Z9 k" z+ }8 F* Q" ^9 P2 [0 w! Y# s, ?% r
ca7 X2 `0 X; i+ y% J- c$ k M
6 t; C6 J4 d$ _* K8 J/ Z0 ainitialize-settings/ l5 {4 p: c' V4 U
! k* F6 S6 Q$ G( [crt people [setup-turtles]9 A0 \6 A; r' X( t" L7 T$ A1 e
& y' j# R# j! Y6 @; m- i
reset-timer# y7 r3 l2 M2 A' G3 |, z7 r. Y3 H
9 H1 X0 K/ K4 E) a* M7 b
poll-class
3 `' F, K- Y1 u$ D) ?0 ~
4 V& @9 }, R7 @% hsetup-plots
; H5 i3 W! c& c z8 v( f
/ t3 s) M6 M! sdo-plots
) b+ x! l9 P, n: a! R9 n8 D. {end% z& l$ g$ W$ j& B
3 _! V* k; x7 j, d6 p- u9 mto initialize-settings
0 }; T: n& m+ C. l% A+ z9 G- |/ ~. d( U
set global-reputation-list []
5 i4 W2 Q' c) J% v% [- [% }* Z( ~; g
set credibility-list n-values people [0.5]
" f2 ~0 |! K/ z
8 A3 @$ Q/ r0 p/ T6 g3 {0 fset honest-service 0. F! r- `5 q4 W2 u, p& L. O
- s# v, y& H9 i& M# y- b+ Yset unhonest-service 0
: f J. Y/ }/ a
6 H. s+ q$ h% T' ?' u9 Nset oscillation 0, `9 {, d- P5 H) a8 d4 f- g. e. I
; p; r4 Z$ W3 b* g# G: _set rand-dynamic 0' @9 d0 I2 }) w* f7 e
end
8 i! a% s, `( h8 f6 [0 K. k
" F- q! A6 f- a: R3 C6 Oto setup-turtles # G5 W/ m' P, ~ ]9 C3 M, h8 o; ]2 A
set shape "person"
& i% P" O, ?. R7 \% S- z3 T6 Wsetxy random-xcor random-ycor
0 g* z$ @% m6 Rset trade-record-one []' b* `0 S- Z, c
7 W. Q3 Z' k) E; _& n+ [0 n: Aset trade-record-all n-values people [(list (? + 1) 0 0)]
5 j" h# F: b/ f" l8 B1 |9 Q& `
0 B5 Z0 _! \9 p1 C* ~' ?3 P* l6 Gset trade-record-current []
1 z+ O0 K4 z, D, c9 D8 q& V& ?# Kset credibility-receive []
1 z; M% b% a. I. Cset local-reputation 0.5
( |+ z* `5 l. L9 Dset neighbor-total 0( L o/ a+ I* I5 `- L4 F8 i
set trade-times-total 06 O* W3 e Y: a# E5 B
set trade-money-total 0
. V- A3 C: h. q" C3 E5 b! Bset customer nobody( h- _; L1 c+ y f$ v6 c" J
set credibility-all n-values people [creat-credibility] M5 K. m( c$ ~, a# |
set credibility n-values people [-1]# i- }, _, p$ B
get-color# {& ~% O& E* k# ~5 T A
$ T8 |3 K/ x- bend- H/ ?" _3 R2 M( I: I2 w5 o- W& g
5 K) {2 \4 B: Z4 @( O- g/ U5 P& |0 n$ Fto-report creat-credibility! k1 r7 q; m% }3 e; b2 M
report n-values people [0.5]2 L! A$ o' y* j$ t9 ?
end
! K5 d8 K4 U* n
3 n; N' t) r' `5 mto setup-plots* @8 b# L: H4 d- E
5 j! P; n5 o0 j+ E4 B0 F
set xmax 30
6 m5 b+ ]- g* S$ i% q/ ]3 k4 u5 j5 V. c+ H& x' o/ b. G" W" q
set ymax 1.0
" ?6 h( [+ N' S8 F/ m3 K
0 S8 P% m" y) f- kclear-all-plots
2 q1 I! o r4 q) }( s- e" X( y* h& u
setup-plot1
k. r" ~9 ^* d& b" B
# O5 m6 }$ k/ tsetup-plot2) }1 [7 P, s* H: |+ m+ H
6 S ?" t i/ ~% C1 D8 y
setup-plot30 H6 f# E& ?- {( t% {: E7 M' g
end
! s5 v3 G( B1 v- @& {7 }. G* y* b" d) z5 ^
;;run time procedures
( \7 v5 D' a. ?5 \% z* ?' F) E7 D( S4 ?) u" m
to go
0 _5 ]( V& f' }8 u s: W9 O/ e
0 y1 @2 }3 p9 c% Bask turtles [do-business]
( \: g# N0 C/ l9 B; y- |end- Y3 }1 ^$ ~. i( c0 h
# z$ S% O$ x! v# K8 q. eto do-business
+ q6 R0 m" f$ k8 q1 x( o% O
* j8 d3 D6 G! s+ g6 g4 G5 \1 Q% Y* X
rt random 3605 ~: P( b% [ P* n5 j+ x! J$ x
1 d/ ]! q' A, l. hfd 1
0 b" G! S+ C* r, s& ]+ ?
/ o5 |1 Q9 F& cifelse(other turtles-here != nobody)[
' X+ [! E, k0 m# ^, V0 t+ m9 m" U$ `6 s
set customer one-of other turtles-here- Q( l! a% Y4 |* u
+ z/ ^4 \6 g. a+ T" u) f;; set [customer] of customer myself
0 X0 e/ d8 i$ _5 v& Q) X- @0 R3 ]( o4 g; ^! A7 Y) P
set [trade-record-one] of self item (([who] of customer) - 1)
/ t, o4 |' r3 A% z[trade-record-all]of self
& s5 {2 \5 |: @, ]( X9 g* \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 t5 c/ N, p- s5 i9 A% ^- k: U
?0 q* w6 ?3 d: [
set [trade-record-one] of customer item (([who] of self) - 1)
1 b9 Y0 U6 J9 c) L; h0 i2 L[trade-record-all]of customer
, F s9 \4 R! ^# ^- U. S, V" H" U. ~* s' J8 X" S( z6 D7 w+ Y
set [trade-record-one-len] of self length [trade-record-one] of self* k/ w; G$ S& ^! Z
) A9 |5 H0 _; H' n# E. P/ `set trade-record-current( list (timer) (random money-upper-limit))- W. Z8 W" Z) v. {5 A; c# a
" m3 n1 w% L, lask self [do-trust]
0 D9 V v. A( Z8 Y8 B8 @* b- g" X! O4 t;;先求i对j的信任度
# k, c0 b3 e" T8 ]* B$ ~5 y
% b1 f+ I! w; @: _# jif ([trust-ok] of self)2 v7 [) E: U8 E
;;根据i对j的信任度来决定是否与j进行交易[& Y& {8 A# ?" c ?( _1 h
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 T% g& p8 l) w Z5 D8 j# f/ c: p
, l: H7 D; {3 O; Q) T a3 l# e5 o
[. j4 P4 G6 S1 Y( L1 {
! u+ N& G# J0 u# t) ?: h
do-trade+ N6 }9 i* h/ x/ i n% [
& L. j2 J1 [+ u# O; e( A6 d0 Jupdate-credibility-ijl
* m( B- [ `/ l4 g. _) E
2 E% D9 E* s+ @! S3 g" Nupdate-credibility-list
! J) i, U* n1 j4 e( t# N2 H9 B6 s! Y$ b! S( M, I
|+ m2 j, d/ Y3 ?2 k* fupdate-global-reputation-list$ w, D4 Z& S, }' E4 Z0 O
2 g% v: o2 Y' W' q6 P9 |poll-class
8 k: i; A9 }' {! Q/ }0 @. |+ H4 v) Y# |0 ~; _
get-color y& c/ T3 h( X6 W
7 G; k# r% T5 f. C# I# M* o2 h- u% K
]]& _2 I( \* E5 z8 W4 X7 F
& ^0 i2 v2 ^+ N$ P
;;如果所得的信任度满足条件,则进行交易/ Q- @, l/ J* b: `( G
; }1 _+ }9 x# [( H- f
[# U8 A/ p; z. H% w! u, l4 A* d% P
3 w; R2 `1 O# J# [) _' ?; f
rt random 360
% t& e( ^! N, {2 C5 ~, }
8 V$ @5 S6 {$ N8 G" Z9 A, ofd 1! ^0 i/ E- e! C t+ r6 b0 D }: ~
# {5 b E4 |* x* K' T8 f6 T]$ Y: @) g0 x) |
7 s6 x2 `+ S9 C. I
end
) `7 V5 `! [' l- B3 f5 {, }- L3 I
. A7 R( V8 X' M/ ^to do-trust - q, _4 j m; S, V
set trust-ok False8 E# O% U2 w( _% m$ E
4 R: e" Z- c. Z2 _/ m! ~5 Y( {6 @, X6 L O1 E4 M
let max-trade-times 0
, Q2 t6 X3 ?/ z- xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( K0 ~" a$ }' ]! L- {( k0 v
let max-trade-money 0
/ R1 v) {9 f9 jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# U" ?. e7 s3 O$ d T$ Z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# y4 [& E5 D) D7 j" V2 `1 S8 G0 p1 [; X7 m! t* A7 v
" Q: h: d* c# ?# m; m7 e
get-global-proportion8 h8 B( J) h7 }
let trust-value
9 }( @+ y/ |* u: n9 z Z+ ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% V/ {/ B/ u* cif(trust-value > trade-trust-value) i5 I; o, x* T
[set trust-ok true]& s' H4 g# P z5 r, D
end
, P x! j$ a8 R+ U# ?: I
9 S/ j7 g7 R# \to get-global-proportion
: ?- D2 W0 f" ~% z! S/ w; x* H8 Uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. ^" y) w8 |' d5 N[set global-proportion 0]9 m' ?2 W5 I# N! p9 ?$ V- @
[let i 0
( o# P! a) U8 E* H+ d v k- I8 }/ {let sum-money 0
+ A/ U7 L8 f+ p2 L$ E( Gwhile[ i < people]9 l3 g( K2 M: {! o X" ?. K" R3 A
[
. D `# M3 a% Tif( length (item i
) h7 q, F6 N" S( @. f+ q0 y[trade-record-all] of customer) > 3 ), z5 d5 ~* K( F! ~
[
* o! X* E2 _6 h3 Z; j" r Sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))) m3 h$ n ?/ o! W
]
! [- v5 u, B3 S6 D4 T0 D3 P]& h' Z2 h( t: U: } g# `. f& \ y
let j 09 b' J; ^# B. |5 t$ D7 }2 \
let note 0: ^& F0 x; w7 g P2 h- Z% j+ ]
while[ j < people]1 S# [, ?1 B2 @8 O& T$ Y8 @
[& p* H! X# b" W5 Y
if( length (item i! R, y( o4 w3 i( W; w. B
[trade-record-all] of customer) > 3 )
+ C K# y0 d1 V6 ]: k[
; n- v2 s2 |+ lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) \& D J& t4 H" c( V
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 D4 y2 b9 Y+ J( l" o+ u: c7 y$ R
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) H3 t, y9 G* F7 H
]4 i5 X8 m( [ w$ A+ @4 p
]
6 I9 P8 t$ s) ?1 jset global-proportion note. Z: z! I& j( T9 y' @
]# K% m8 v- ~5 O& S, ]' Q
end: l& Z4 I8 F: W+ G, ^ ]: g S' O3 |
1 V+ u; l! q& [! V: `3 P
to do-trade
, n7 ^- ^+ B3 ?* F' `6 O;;这个过程实际上是给双方作出评价的过程2 c0 F2 ~' ?: h& Y+ ]" {' O8 |, {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ Y% l; \4 f: u2 g1 v9 P; D& a; A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 o q& {% b' _* G& o7 i% a# Tset trade-record-current lput(timer) trade-record-current' \& w2 a$ v! O6 I
;;评价时间$ K: e( q0 t; v, Q9 S% o
ask myself [+ C ^% ^: p' _5 p9 }. Y2 {- n
update-local-reputation
: Y+ L3 Q2 D+ F( _1 e! V; zset trade-record-current lput([local-reputation] of myself) trade-record-current6 v6 C8 s( @+ _( W# U& b9 W/ K$ W
]
2 u! U4 I0 S Y2 ?# ~3 Z1 Iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ v! f' P0 w8 Z
;;将此次交易的记录加入到trade-record-one中" K$ L0 G% g( l% t7 m* B$ X
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) {; Z1 e/ E. O' V8 r
let note (item 2 trade-record-current )
! N# P: j: F. c' ]set trade-record-current
( c, A) s# D5 n8 C(replace-item 2 trade-record-current (item 3 trade-record-current))
: `# z. O o8 K: sset trade-record-current1 s( j$ J0 r: n' j2 X0 N2 f/ {
(replace-item 3 trade-record-current note)
4 t' f& H6 M$ f x! p8 A' `) m, S% _+ T: M7 w
, q/ P; Q! L8 `2 t/ d7 l
ask customer [
5 M% g: R. C: }2 Gupdate-local-reputation
9 l% b. x5 ? r! _ W4 Xset trade-record-current
# x& y. J, @, k& p9 X+ r/ d(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ H) l, Q! c+ v1 p5 J
]
" C+ j; X% M$ y# f9 q
% f7 l9 B1 v. C: r; P
3 M6 {# j+ k* o8 @0 Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ D2 m7 j" j" q" k# E2 K" `+ S: s
5 m0 U, J3 i3 R: F8 a2 q% Jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: \( G a+ N/ v B& t;;将此次交易的记录加入到customer的trade-record-all中" v9 \) L* R. u& b# u' V
end
9 Z5 O" n; C3 n$ |
, ~5 N$ N! C8 H# {! R0 c3 @to update-local-reputation
- S1 j+ e4 b- `& ^" _! Wset [trade-record-one-len] of myself length [trade-record-one] of myself# L; @8 s/ U8 \ ]: ]9 u/ O
! L2 l6 F- H3 ~0 K; ?6 l3 `# E1 M
8 {( J4 V4 @/ |. w% J P
;;if [trade-record-one-len] of myself > 3
' E8 @ E: G8 U. [; o2 g3 U; ^update-neighbor-total
; `; w, y% r" g+ @; T- w5 i6 D! z( z. O;;更新邻居节点的数目,在此进行 Y" n% u; z- y: M4 t5 }* S$ p
let i 3
/ c+ S U$ {* z1 h, v5 @4 Z8 h; ilet sum-time 0
5 n: i2 w0 N4 L$ s( x9 ?% ^while[i < [trade-record-one-len] of myself]' s& }: m& ^6 |5 l. z
[
) G) J* E# i dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' }2 D$ `9 ?5 x
set i7 r; i0 f0 [+ q- y+ `% d* |% }
( i + 1)
E2 X" }# q8 g: P4 U; W]
4 ~% X; K! D h# k- x# g' E5 Glet j 3' X- I! z/ r9 D
let sum-money 0
( n. n0 A2 H9 Q- i) k6 I1 V0 nwhile[j < [trade-record-one-len] of myself]# |# \) i8 k. J1 h$ n" @
[. }, H+ H3 k, k
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)! f3 c+ U8 V2 }
set j& `# g l0 x' ~2 U1 p! U v% d
( j + 1)7 q g& A1 F# d) _6 s2 B6 T$ ?# w
]
! @$ K2 X4 q! b: G3 _let k 3
1 p$ P4 i& @7 f; ]let power 0. N* ~' g: D( P; `8 [0 a6 B0 C
let local 0
5 o8 [1 H, Q# F& x0 Ywhile [k <[trade-record-one-len] of myself]
6 Z- d) ^0 `& N- {[) [- t h0 C4 g$ D
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)
; n7 Y8 D" z/ j- a) \5 dset k (k + 1)
/ L5 |: @5 X- E" s# L9 [0 r" [* z]) ]! q+ W4 |* T4 {7 J2 b& H( T: e0 v
set [local-reputation] of myself (local)
- D7 `1 _1 v! P, O7 C* K1 Rend, Q7 S2 v) u( R" g$ ^
8 }% X3 h) }* N& @2 h+ I6 x* ^
to update-neighbor-total
) V8 j% y# Z. q/ T8 R' H" g& }# E7 ]
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# t; E5 n4 n# ~/ H# C+ \6 D0 V* i+ H' P) y+ o, v0 a
2 [: Z4 X: M ]* kend5 o v2 b% p" O5 q$ b% G2 }
; k* k% R; A U* l9 C& F
to update-credibility-ijl * h8 S/ z% k3 I. Q( u! l
+ O1 G+ {- P' L% D: D. V* e& m;;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。
1 |% x) W$ {, B$ B. f8 `& a/ B/ `let l 0# M( t6 i# ~" t9 i* J2 N
while[ l < people ]
. A# [3 P& {) b' X2 v;;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$ P7 T4 O! c2 j* ]
[' ?* {; M* d" D! P. s1 L: F
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 _1 f1 a4 D6 z2 N, i3 Y
if (trade-record-one-j-l-len > 3)
; b$ _8 P/ t' f7 y6 l[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" N, |- l7 S# a* ]* F
let i 3
( r6 V- K! h" V4 [2 n- qlet sum-time 0
7 e: E5 d6 U r0 w8 }! }6 C% u; qwhile[i < trade-record-one-len]
& ?2 W1 l' J3 n[: M; X7 p9 n/ z( {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 ]. h ^$ b! N7 o Oset i* \5 H, O. r" f" s7 z \. [$ W
( i + 1)
5 s& [4 i! \- S5 q]
% v- q9 k/ x1 B- U) `let credibility-i-j-l 0
* y5 n$ `( I* N% b5 P;;i评价(j对jl的评价) c1 k( D, e% M. g, G" w# \$ d
let j 3
4 F0 a) i4 l' Q) p- \' I4 Ulet k 4, ?: o. y# y1 j+ y
while[j < trade-record-one-len]
# v. U c" ?# D% W[+ H5 w+ a6 I* K+ P5 [$ ?+ N# I
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
1 ]9 Q6 I$ Q: V) L7 uset 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)
2 m1 j8 u$ T7 ^( Gset j5 S2 P+ e5 O" P& d3 @/ D3 i
( j + 1)/ w. d/ m9 A) \6 F$ A% V1 @
]
" r: c, H0 S b! k ~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 ))
: R- p8 P, n/ [5 K$ V, v
6 z- X! Y- s. p* }. N# {3 ~5 O5 Q- ~& ^: `- C" T$ w- J3 \
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 F* {( K. Y9 n7 y! _% X;;及时更新i对l的评价质量的评价% E w& C$ S: s3 q3 E( p1 r
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ a7 e. G8 q5 {7 q; mset l (l + 1) o, W( a( s" q0 `
]
) |' s/ }" C1 a. \* @/ f5 Bend
2 J6 }& W5 P4 ?8 s
/ ]# X; ]3 S7 o6 qto update-credibility-list
7 C3 ^; h7 Y. E/ s, e- U# _6 y! s, Vlet i 0$ l6 G8 @- k- y4 ~2 I9 D" s7 K7 k) m
while[i < people]
" Y2 ~! _9 U4 @: c4 v[' b+ V( I* d" t* w B2 w: Z
let j 0* w$ A; T6 I6 Z+ O/ X* a2 |9 y6 @: G
let note 01 q) n' Z' u& D" w' a# X4 Q n
let k 01 R& ~: |" M) y: j/ q
;;计作出过评价的邻居节点的数目
. U& D* H& F# N& |. Awhile[j < people]
7 N' g3 m+ X4 y4 R0 r[
- \% o' G4 N9 M4 s4 ^ iif (item j( [credibility] of turtle (i + 1)) != -1)
% G# \8 K$ X5 k! j$ C;;判断是否给本turtle的评价质量做出过评价的节点6 s, R: S8 o/ v* n0 d5 f
[set note (note + item j ([credibility]of turtle (i + 1)))! M2 w/ U4 @" d9 T+ ~8 @- `
;;*(exp (-(people - 2)))/(people - 2))]
7 v% [$ q0 f6 j# {2 ?- z' dset k (k + 1)1 s5 h" H2 E: S3 {! K8 W
]
2 q, {- s$ [ x2 A, I$ W. W1 iset j (j + 1)
1 c9 |6 b4 X& B: b/ F) H% E5 P f: Z]' o, {2 B: L+ x8 r! w# _
set note (note *(exp (- (1 / k)))/ k)3 X3 U$ W% X2 r% M
set credibility-list (replace-item i credibility-list note)
$ W" K5 Y {% p3 k9 v; zset i (i + 1)6 w! Y8 F$ t! t$ z7 j
]
% p2 P1 W' Q. z9 z5 v! rend2 ?- S/ \# l/ ]; J, E% W; f3 d
n- F/ z& z# h8 C' d0 p3 k; X: \to update-global-reputation-list
0 q1 I4 e4 F( i Glet j 0: ]2 @5 R+ F2 z5 a
while[j < people]$ o, p3 R9 S% Y4 U; z3 n
[
( H& r! K( _# R, |let new 07 B6 \6 ^3 T( r2 F( T/ ]6 h
;;暂存新的一个全局声誉
5 b1 u6 T% e5 `( |0 X& Qlet i 01 p" t R0 C2 c0 k
let sum-money 0
% A/ Y# l& ~6 M- A/ B8 A1 Jlet credibility-money 0 \5 K+ }$ }2 j' t6 a+ h5 M
while [i < people]8 _* [- {+ n+ o% E
[
0 R! v' t, E0 s" Z( X. ^4 d0 @2 Qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' a% P! ]2 L3 D! r) F6 d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 {% k7 y. {( `
set i (i + 1)$ w7 L0 z1 q% f# u, r5 g
]
- I$ h( B- ?: x( q4 i' zlet k 0
' t4 y n: k5 llet new1 0
x* A: X* A8 Q# ~- j; a5 q9 J9 Uwhile [k < people]5 }9 k' Q9 M& O0 g4 t. O7 T6 h
[# X/ l U7 ?) E
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)
( g. }" g% R4 ]. O$ J; r7 C) L- _. Hset k (k + 1)
$ |, {) V4 p. Q% n1 Z& E" z]$ \- ]7 j: E/ f1 |& n) L1 F- P7 W
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ r+ C5 q' \! `6 j3 h- iset global-reputation-list (replace-item j global-reputation-list new)) w- b; S3 H* ~! z# `3 S- y3 o
set j (j + 1); V1 m. V: C3 z" A: e+ [* ^0 L X- q
]
8 k! V9 ^5 y* Y( N/ eend- j% w- f9 t. b2 |$ W
" ?. {4 E2 h/ v5 m! W3 u: \9 V
; n5 \/ ~% Q% O% i5 Q
9 R- w' F8 U% m' rto get-color
" C$ L" }" W' {9 k: F$ p: g) P8 t3 k+ q4 L! I+ H$ B9 Z/ k
set color blue
8 ?* P- A6 T. U5 fend ?; I; l' b+ j" ~/ S1 p2 T
' R5 X9 m" o. }1 i* ^" I' @3 gto poll-class7 u% y+ E4 Y! h
end
- y* {. ^: I( Z3 `3 K& e k* i6 y1 ?; O$ y) Z' ]
to setup-plot1
0 h7 W9 E; ]6 C8 x u7 V. a& l" @5 a
set-current-plot "Trends-of-Local-reputation"
+ Y) n2 R5 z. t5 ^/ x8 s2 I( }- V" G
set-plot-x-range 0 xmax5 l8 ^; ]$ V6 \( X7 j r) n
4 O5 f$ @5 ~3 J6 q3 O" _# b
set-plot-y-range 0.0 ymax1 _2 C1 F+ p$ p8 c" G* V0 o9 z
end9 I* f" f- \" E) p0 [1 y z
4 h; x. w0 s: j# s3 }to setup-plot2
3 S. ^6 D# z9 `; s9 P
2 K( B( q1 K& P$ e" C, x' Y$ Cset-current-plot "Trends-of-global-reputation"
! M- @0 A& W; B; `$ G! }
$ X5 t6 h4 e" t) Y- m4 x9 d# r! bset-plot-x-range 0 xmax
# ]$ P6 P" a: }$ u. ^. d9 R, ~1 R' ~( J! n2 T# l- I- x3 m% C
set-plot-y-range 0.0 ymax
) M' i x2 g; B& d3 q- Jend
" w( ~, y! K6 f8 @9 p2 a
& U+ w3 m3 r. [8 v F8 F& dto setup-plot3) X3 P1 g3 J) B
3 Z) A+ L* B1 jset-current-plot "Trends-of-credibility"
* C4 F. @3 R6 {6 l: w
+ R9 ]' a( o* k) N; d$ Pset-plot-x-range 0 xmax
; x, E0 Z) n9 U! g9 t. h$ f( U4 K+ x3 E. b
set-plot-y-range 0.0 ymax" _, P8 M) y- n! W. H
end3 P% x) K2 ?- n9 ~6 _' t: A6 b
% w7 [& {: m$ c. L0 A
to do-plots
9 ~: j& j2 W% ]! Y# Jset-current-plot "Trends-of-Local-reputation"
& B& `2 V! N8 _/ p# q' Vset-current-plot-pen "Honest service"
3 e" m. c* m& b( Iend R! K# b2 o0 x& w% {
7 ^7 `6 ~1 V) E# ^) n7 ~0 S0 C[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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