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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# b% {9 L- v5 O' m9 k+ r, o
globals[
5 y4 z: S% Y* x+ K" o0 c" kxmax
/ e0 Z: ^8 J$ V" i$ jymax
' d6 o! E$ Y5 o! @3 F. Xglobal-reputation-list4 V0 ^5 [6 u, b5 L' v+ l2 @
% X6 d& l! q% e$ f3 }$ M8 w
;;每一个turtle的全局声誉都存在此LIST中
5 E) v2 `* K$ K0 O; R: S* ]) l1 M6 Jcredibility-list
( U3 O- F; H6 A7 N+ u4 z;;每一个turtle的评价可信度8 \9 Q3 | u$ [6 w8 Z" r
honest-service
9 x; K, r" P9 b5 L0 n6 l" _unhonest-service
, M5 \" ]0 e! Yoscillation( q# f8 T/ l n8 [1 l
rand-dynamic
& L$ [6 T; i* Y" e4 o: l4 F+ h]& q5 f* i. P {. _/ U m
9 N. @2 Q% `% o8 k7 q0 o8 |8 Iturtles-own[
9 p2 {) l4 A2 Z0 v! ftrade-record-all
, ^: m4 W: i5 P# h- ^;;a list of lists,由trade-record-one组成 U( v# v0 |; f/ y- Q: r
trade-record-one% V2 k8 c9 ?& Q7 _
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) f8 J: @1 ^* A0 @. o Q7 v# c
@: S- W% P2 v;;[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]]
6 H5 ~, ?, C; f9 F+ j0 Atrade-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]/ W: ?3 W4 n% V( B8 h* W' x5 \8 \0 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
/ g0 `5 M) i; G9 ~2 vneighbor-total) _/ T C' ^) p+ z. }
;;记录该turtle的邻居节点的数目
1 y, A! B/ Z0 }+ Ttrade-time
+ o. q6 z. E" V( J& f;;当前发生交易的turtle的交易时间
/ c e/ X1 {4 H- uappraise-give- p! D5 T. J: h' o2 E% `
;;当前发生交易时给出的评价
. @+ K! j0 S. [+ M' O0 |appraise-receive
; K, R, J4 Z5 Q+ t;;当前发生交易时收到的评价
V. {6 Q5 B! m3 l. happraise-time
$ z) L. f3 _3 X& \- [% w/ G;;当前发生交易时的评价时间, ~1 _6 u! A' C. i Y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ U0 f2 I4 D$ P% U1 ~ f/ ]trade-times-total
- ~( }6 B- @0 a* N6 ^ q) m;;与当前turtle的交易总次数+ Y0 ]; U ^; Z3 E* ~2 G/ e: O
trade-money-total
0 r w" O& U. p) J( i;;与当前turtle的交易总金额, W0 |5 i6 L b# H
local-reputation
7 u- j$ O" M8 ~ x: gglobal-reputation% j+ b- N4 _4 g( F" M W' V0 n. c
credibility1 r9 O4 \ V$ T( h
;;评价可信度,每次交易后都需要更新2 c6 j' j9 I5 B
credibility-all
( v9 Z3 x/ z/ [3 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 V P+ s$ b! j) A
U, F% I: C" @2 l s( L6 J, V1 D% \;;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0.52 C! w) E0 Y2 {+ N
credibility-one
' j: ^- \! ~5 A' z( {: b+ };;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7 Z6 U% J5 `9 I: S( x. U y) _
global-proportion6 o) f# J: X/ O' d9 g: p
customer9 w1 q/ f0 z1 ?. J
customer-no1 Y+ K- p8 `+ E; w6 O
trust-ok
8 F) c. B1 T) ]+ k/ }3 e' Htrade-record-one-len;;trade-record-one的长度5 j4 i/ n1 E( j2 J7 a
], e" ^( c% ~! f X. n
$ | S. ] K C- i
;;setup procedure8 N: x, k. E# x+ o3 n' ~& D
8 b+ K$ q( E% w: q( {
to setup' y6 y! N; D# A3 `* f
& c% j1 p& J8 J7 V, g' dca9 T; v! S2 q7 \* ~+ {3 w0 B
. e [$ l' |: p4 p9 [$ iinitialize-settings/ B$ L, _$ R& ~0 X6 k K% J! C4 t
( v4 O' Y O2 e. Ncrt people [setup-turtles]; t" I" ?/ j0 m X8 O6 ?; Z' W
0 Y% ?+ s! [9 b* m
reset-timer1 P$ X- y ^! P4 Z- O) ^2 x
2 ^, J3 {# r2 y" jpoll-class1 S+ ?! Q) \5 k
( q* f: Y- }+ g9 D& e! ?
setup-plots3 v" L% W9 W' I
( z6 f8 Q& z* f, X" U
do-plots! s( G7 F$ P6 A5 g
end% X9 q2 G7 t7 G( j2 N9 y7 Q7 f0 i9 K
8 `" i5 t ]0 e) Y2 V# m0 }7 Z
to initialize-settings$ b: H6 ], m- c
3 Z. Q, k/ H Q
set global-reputation-list []
$ q7 }; C- ?* t# r7 F( o5 g! O2 N! t( x/ d1 Y1 o
set credibility-list n-values people [0.5]* f0 x& c4 R) B! _9 b& O6 E
8 L7 y# O. U4 H& U0 K* fset honest-service 0
* l9 p6 L% r( X; {# E' t9 }
) `( O: h. `: p8 R1 Y# [. J3 g) cset unhonest-service 0) v# `. x5 f) Z7 Q; x1 r, j- e* [6 P
& A' V/ [% }& r: s- x6 W& ]( f
set oscillation 0! U# a* N: n% A0 j2 Y1 z/ B
) f& @7 q7 x; {( ]- f
set rand-dynamic 0 D, J2 W+ a' A" s- `" k
end
" L4 Q0 X7 N8 I- _( T4 j4 w9 ?1 n: [) Y; f# A9 y6 k2 A
to setup-turtles
9 S4 h% _: G+ X+ Pset shape "person"3 J# ^( Z8 B" K' R i1 b4 b
setxy random-xcor random-ycor
) L" t# i: s, m/ [& c" U$ Vset trade-record-one []- S U$ w: Q2 ]+ b6 e
4 ^% K- z, V. \8 C: X: `" t; N5 f
set trade-record-all n-values people [(list (? + 1) 0 0)] % W& W/ T' Y# Q m/ S
# B0 o D, x5 d' U4 d/ w6 {set trade-record-current []* ~, o0 u, d' n. O+ F; h" A
set credibility-receive []
9 T. W) x @* U& R: p* l% [set local-reputation 0.5, `0 k4 }: } S9 M/ G
set neighbor-total 0
: w2 t3 [) T( r$ R) G oset trade-times-total 0
) B6 ~7 G7 L5 e1 P3 A; C2 R8 Z% j5 |set trade-money-total 0
6 ?0 H e8 w. l; o5 Yset customer nobody5 D" c. {+ e6 o% {+ {" X
set credibility-all n-values people [creat-credibility]
; U( @% F9 i7 U& @7 U+ D+ z) wset credibility n-values people [-1]) h2 L' p" Q# @0 l7 f4 F
get-color
) I; Z# _ P7 p d2 n1 q: w. f: p# L, Y
end
3 S0 m* q+ p; r9 }. A
4 H" a- z, z4 Y* K8 Eto-report creat-credibility4 l) O. j0 T V: G. U
report n-values people [0.5]9 |6 }! N4 \% A' |6 O. g
end
" P& w9 L* E7 T; |8 A1 |# M- j* R' \4 x O) B1 ?( i ~2 }9 |
to setup-plots1 v+ R- E( q6 I: X1 b( a$ c" j
4 d9 R) n/ j1 m2 hset xmax 30
/ ^$ @5 n9 a0 u$ c/ q' i6 R- j5 W) m7 n
# o/ X4 N; C) [set ymax 1.0$ j$ m/ Z& P5 i* D& M3 H
) z5 u" s) u( ^- z
clear-all-plots' [0 b' K0 Q: J/ J1 J4 ]9 K5 Z& V+ n y
1 T% {+ Y: Y+ ~2 ]' ]
setup-plot1
0 X& y7 \! L: W1 P2 a$ E+ B# x) _
% p9 D- n7 t, k* a% u b' Ksetup-plot2" [6 U1 B" p) ]- N8 `
* w6 e0 z) D* y' ~. j
setup-plot3/ y/ r. }3 J g! q
end
/ Q( Z& M$ @0 w ]2 m: t" i* d _) j' K. _0 h$ l# ]( h# V
;;run time procedures
0 D1 Q; h! w1 Q& H$ H
3 I/ S5 k9 B0 d) k+ F- T5 k+ k" Sto go
* t& b/ Q# E& z$ {0 k
9 l/ v( J: u' W9 B- fask turtles [do-business]! h& Y* `8 t$ A' R
end
+ p) G$ Q9 t1 \- Z7 @! J' P0 `4 l- n0 s l
to do-business 8 ]3 K% i8 g% y# {0 C4 o/ j- O
3 g+ R; J' H; G8 [6 R: z% n3 f: h& r6 r1 _4 i
rt random 360
3 m! ?* d0 z4 ~& a h' ?, i. S6 Q& g& `4 R: |( q& |; {
fd 1* y2 B4 b$ R- c8 E9 [; g3 @
& c- x! Q" }) F1 I/ b/ Hifelse(other turtles-here != nobody)[
1 I- ]' ]- z7 Q/ f; {3 e
0 ?) j5 n2 t; d4 V1 f$ ~& ~set customer one-of other turtles-here
1 {8 \: e% G8 G8 B/ @2 ?
* a* B9 h, p" }; W;; set [customer] of customer myself8 w4 F, V, m' I0 h4 j" X6 r1 Q& }2 i
1 Y9 M7 }7 b5 J& F# `0 u* W' ]8 p) @set [trade-record-one] of self item (([who] of customer) - 1)* x N# C( y' B @% z
[trade-record-all]of self7 |! x9 ] Y/ S( g
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 p1 E( h/ V( |0 G3 v
8 V" i y' U$ D: t0 @( ]0 L1 f5 Uset [trade-record-one] of customer item (([who] of self) - 1)
$ T, a" _3 a1 ]9 O9 ^" x+ x[trade-record-all]of customer
/ X0 \/ B% n- |1 A( J
! K# Q! f/ s# u' ?# W I& @/ sset [trade-record-one-len] of self length [trade-record-one] of self" f; n% j* N9 i* C
. @# S* Q/ g6 x* h. U. s, e! zset trade-record-current( list (timer) (random money-upper-limit))
$ Q0 X& }7 C- P. p6 q, H6 ~
0 ], o% [0 m g& K* r2 kask self [do-trust]1 N! q* G1 ?( C+ v4 ?
;;先求i对j的信任度+ D( t# I6 q" N9 H8 @% g
: g8 [. l, E( c+ z9 W; K2 V
if ([trust-ok] of self). q; ]2 M' V6 \& s4 }
;;根据i对j的信任度来决定是否与j进行交易[
* D5 B1 c$ ?8 Pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 T1 U! E3 X. f$ t& A( w
6 ]6 d! X2 C& p6 ?. C[
' q; M! b% _& w4 A$ V& ], Q5 x$ U# }
do-trade3 `4 v1 b3 u' _9 A1 Z8 @
0 m. [" B3 m) l- i: {update-credibility-ijl1 [# X3 D! Y/ p. i& p/ E' ^
. L. D5 Y/ P2 l) |- j! c8 T
update-credibility-list$ O, G( e* W- [* G: t' p0 q
[! q8 Q5 K3 {3 Q: n
' w% o2 r" W1 Hupdate-global-reputation-list+ V6 i4 h1 ^& W) F' e0 z4 e! E0 W
; a2 Z9 a* p9 H4 T/ i/ ~poll-class( |3 V; F3 c1 Q( v3 B. p) N
1 f$ b5 a- N3 @& m
get-color9 P; W( \+ R% O+ ]
5 z3 u. A! I/ Q* o6 V5 [
]]
) k9 e* y( |" |! M- |, f, y
3 s! e! K' j& u) S9 a% l;;如果所得的信任度满足条件,则进行交易
. T, z, X( R$ Z. E6 y6 z6 ?1 U2 D1 e2 @0 s/ C# Z
[; u P+ }& @% Y. o
$ h" _ V, W/ s2 A0 }
rt random 360
# [* Z. U0 S' v# ~: U' B. n( b Z
fd 1# T% o9 ?# V& F8 P2 S' w' D8 f: ?
0 |/ ?: N8 F6 v2 ?5 E8 k2 J! C+ _, T
]
( J$ _. K0 q% U$ ~% w
; Z g+ e- M! {9 ]end
~% J$ c/ { ?/ p# G( d( W+ \7 b, J) B5 |; E4 A* n
to do-trust
9 ~, K3 G$ g8 f$ I8 a! p$ t% oset trust-ok False
! U1 Q: I7 R4 W+ |/ N
$ l# Y8 H9 M3 |' n# ^* o! L4 v3 b/ h3 d. ] P1 v9 n- O
let max-trade-times 0
l. m5 r; ?# R# q! \+ y% L5 Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 b: `" s+ j& g8 Q Klet max-trade-money 0
, ` k* K. S6 v" Nforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. T5 p# P6 u- s% Qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 Q# o4 D. N) o& j( F
# C6 {- Z5 p# G) l9 q
3 a! ~& v6 w* {, k0 f5 Sget-global-proportion6 {! |$ |" p( x5 z9 d
let trust-value
# ~* i& _: i7 a# i& V* l; slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
1 [' p8 A. m' L5 {' pif(trust-value > trade-trust-value)
2 z, K8 Q& P. ~5 A& }[set trust-ok true], Z3 `2 G( P2 J8 v& o
end, K& T3 p% X; M/ i* Z' Y7 Q
! a) w4 T) e" Oto get-global-proportion
8 G" f( {5 E; F6 c; difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 E5 ~7 t* n7 ^, @; C$ V' O K2 t0 k[set global-proportion 0]& {% | K- u4 Y8 ?7 P+ @4 H
[let i 0
8 A2 M4 Z. S# ~& `let sum-money 0
; Y4 f/ ?7 ~; t7 ywhile[ i < people]' u1 s; {& h$ [6 f4 X5 h3 r
[
8 j2 o$ q$ \& P' o* l5 _6 Wif( length (item i4 e; ?8 v9 t) s: k
[trade-record-all] of customer) > 3 )
# c7 y1 I- c- E; D C2 i0 w[
2 ^6 m* l! o2 e5 eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 T, |: }. m9 |; c( H& m
]
* v/ U7 L+ h, |5 a& e3 F]* O" M6 g/ g. x: y' o
let j 0
) ]2 ~$ M# m/ l, o1 E: s0 vlet note 0 x7 c& B1 A% ~, { ?; r
while[ j < people]% a/ ~8 L# V6 Z. w* Y! v, E
[
- r6 t: F* i% Y: Aif( length (item i
$ E7 V5 A, z2 C) `5 Y$ M2 L[trade-record-all] of customer) > 3 )0 T$ f% M: f- l, }
[
& y1 z3 ~0 ^ D( i+ Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 l) r( L) e( X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
d* n2 U9 P7 @7 y/ x. S[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! o1 q) C6 A8 Q+ O]
8 `; b4 N! I0 M) q# A% {7 s( t]6 D# N3 J, P, u$ R2 e' M
set global-proportion note
& b) G) U4 o! I4 F1 }1 z]
# U; e* q& I. M# y+ xend& _5 {3 f; k$ U# v
# g1 P3 l5 X. \$ ^9 |- T3 v! n
to do-trade5 y2 h* Q8 ~! x/ [9 H; P
;;这个过程实际上是给双方作出评价的过程8 P/ d( f! `6 W+ ^( A A; ] i. S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 e3 B* r# ~3 Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, h# y: ?4 g. R8 y. U
set trade-record-current lput(timer) trade-record-current' `! V) A6 Y* h; Q/ x% w% ?
;;评价时间- z% n* s# i( g2 _5 _7 d* w+ T
ask myself [
5 M ]! S- Y! X1 [4 I3 Uupdate-local-reputation$ v: r! V) W% t( s/ o: m
set trade-record-current lput([local-reputation] of myself) trade-record-current
( D& c; }' E5 v]1 H( f+ ?, H& D5 n+ s/ @+ }
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% s& t# M! h( K4 w& |" J. `;;将此次交易的记录加入到trade-record-one中
: |- C( n$ r, q. u" Vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' v1 o. o' e4 ^let note (item 2 trade-record-current )2 ]: F* r% L8 h/ p/ R' E" m
set trade-record-current# i9 X0 v8 j2 R
(replace-item 2 trade-record-current (item 3 trade-record-current))
+ H3 s) C/ |6 O' l' S+ `: Q2 }# ~- bset trade-record-current
/ K$ q, L7 M q% Y(replace-item 3 trade-record-current note)0 y8 [3 r' i$ M+ C
" s+ I$ S( E9 M8 v& A C$ L. n$ T7 T. L- l) q. x/ @
ask customer [9 b: r' Q5 F7 r
update-local-reputation2 a8 F- L! H, C+ ^* U9 `8 f* `3 V
set trade-record-current
1 x# f- x5 b0 c h" b9 V- C/ D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 M+ H5 v3 }1 `$ {]
4 s* F# S7 _; Q( J y+ D; w0 \# G& s2 Z, E1 G
# @) j* H; B8 e5 T: G9 G1 c* @, ?8 @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: l2 e3 d$ ]) q6 D2 w( D7 L k
" t' [; h7 h2 u+ \; @: A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 Y$ U% Q3 p6 K. T
;;将此次交易的记录加入到customer的trade-record-all中
" y8 k* o: F8 G) C B$ Dend0 w& Y5 C+ }) p) O1 z: Q! E
2 U% y6 [% j4 B8 g; V
to update-local-reputation
) }9 D" r) Y) \- Wset [trade-record-one-len] of myself length [trade-record-one] of myself
* D' h5 x1 M, w- I8 Z! \/ p9 i
+ |) A, W. @$ M, p6 ] N8 A
+ F# B( M' x9 ~, m4 p- F;;if [trade-record-one-len] of myself > 3 2 O! D" b7 c! S
update-neighbor-total- r" ]% y* k+ e( w1 X" \
;;更新邻居节点的数目,在此进行
3 y0 ?: h- g8 [1 I0 F5 h) Nlet i 3
* z& U+ r8 l2 |: b, Blet sum-time 0
' I, b) T! [% c) S5 u+ q2 m# ?while[i < [trade-record-one-len] of myself]1 M" r& f3 T( i# M/ `+ l
[4 e( A: z8 _- u4 @: o
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 h1 \5 t5 ]7 k, f; Tset i, h7 S( o9 e/ Z! \4 }/ M6 f
( i + 1)
# @1 B8 m/ e2 e) O: I+ w% d, Q! V]
+ T& S' o+ K4 y( K9 K6 n) Z" C8 E: wlet j 3
/ I$ o& h8 ] C$ G5 [. |5 } s% C Elet sum-money 0, i" F" ^' W. l, B' T' ~" Q) G
while[j < [trade-record-one-len] of myself]
% ^. `5 m, |. g* r0 o3 s[
- r( |1 J* X) c! a" kset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)3 c! }& ~: G4 t d+ N6 T2 ~& W
set j2 T6 z6 c6 {& M R/ r
( j + 1)2 g; o. ]) U- i. H. T8 S
]
( L: e, U `) D' r* k1 v+ Zlet k 3' o. R8 k7 x& S) i
let power 0+ R3 }% a) ?3 V: T# T& v# \
let local 0: T( H: p' ]- \. a$ L, A7 u
while [k <[trade-record-one-len] of myself]
9 Y: S1 G2 b2 F- m2 G' u[
! G1 a9 J( ^& {# ]# v: `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)
6 u3 R- d+ A( g6 Lset k (k + 1)) {. M/ Q& u4 ]7 j$ ~7 d7 n
]8 J! }, p7 H- T
set [local-reputation] of myself (local)! J5 J g: A( Q* S7 n9 [/ N, _
end
6 c6 N( L/ F% U: N: X. ]. \
2 H% w/ m2 U, Sto update-neighbor-total, Y- J5 m! }) a& ]# v2 D6 H) J6 Q
+ V3 z; _8 e$ f1 g2 N9 kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# K/ [' f. N: C- c1 k& j
) `3 N; D6 L/ s! x
& D$ K1 H( C* }, c8 F4 I: r+ ~4 Z
end
* {8 w* J5 Z2 L- _/ d/ N5 `1 z, F! g
to update-credibility-ijl
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5 I! Q' L" p( J" H; F$ 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。
$ u& B [3 r% H( ~let l 0
% z7 D1 i7 o7 h6 U4 I7 N1 @while[ l < people ]
9 i8 E1 [% K( s0 }* Q% X; 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0 }/ ^1 I: N" Z" {& d& n
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 m. B( e3 |, Q6 S2 Z+ w
if (trade-record-one-j-l-len > 3)% u* Z% x; @( y4 q4 d* c; M; s+ ]- 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
% L9 Z0 ?" a; u+ P alet i 3
( o: M8 n# b( D0 P3 tlet sum-time 0
" w4 K1 N m+ a! }; U! [while[i < trade-record-one-len]* z; q1 h0 G0 s+ S
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; f+ n1 `' b, d: R9 jset i1 x; \( J, b% R) ^ u* W4 b
( i + 1)5 z, l8 }1 V/ s# {
]! S* r- `/ b# j+ O) a
let credibility-i-j-l 0
1 S# m J9 O" s9 I1 h- o2 T;;i评价(j对jl的评价)+ @" o5 o6 p9 n3 Q! J# X$ z/ n
let j 3 j, S! [7 ?' X2 I
let k 4/ G- d( _5 z1 z y$ X
while[j < trade-record-one-len]
& o; k# ^7 S! e* S( |( M[& ?1 y4 b+ ^( [' m" _3 H- N) w
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
4 j9 G. b# n7 c9 u. [+ Y1 a, Hset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)
2 W- R( n/ ]$ a0 g, T& _/ h' wset j
N7 g6 p2 k8 L+ z& o! u; M( j + 1)' U. J- H2 L: l* \. o3 P' p: w8 j
]
. F ~8 J" A0 J% @6 S, l0 e7 aset [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
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) z) }, ]9 _* s7 v9 W. l9 `# m3 t9 H/ m/ Q& ]
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 L3 w" m' a9 |% a5 r! j$ R7 \, D v. D;;及时更新i对l的评价质量的评价# z. A& W( C4 y. N' R. u0 y1 t
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 q- [$ z: T. P( s0 s, pset l (l + 1)* I% f9 _& t( ^4 k
]& F# G0 b' `& u
end% ]* U, f2 J0 x
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to update-credibility-list* t/ d1 f" R8 d9 u1 e. @8 g
let i 0
# ^3 n& }4 ?4 Q8 Swhile[i < people]
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let j 00 D. h7 b+ h1 h! V; k5 Y t5 O; f% j
let note 08 _" d4 X. ]6 x# r; u( _
let k 0
& W, y! I6 c" t8 O% |" V r;;计作出过评价的邻居节点的数目
4 q! ?4 \9 U: ~* ?0 ]while[j < people]
/ J9 l4 n% o9 k2 h( k[
$ \) O5 {& d, a5 L7 |if (item j( [credibility] of turtle (i + 1)) != -1)
D! E! y7 n3 ~& ]' S' j, _;;判断是否给本turtle的评价质量做出过评价的节点& n9 r7 R- P! n
[set note (note + item j ([credibility]of turtle (i + 1)))/ P/ {' f3 |+ a+ a/ t4 i- y
;;*(exp (-(people - 2)))/(people - 2))]
( y' {1 y8 M5 ]( s/ {( Mset k (k + 1) ~4 W# l3 v6 L5 }$ B+ f6 O
]
8 d7 |, D X+ }3 s" J0 s2 L$ lset j (j + 1)1 @$ C" ~1 M: b! f, O! ]4 R0 t
]
! I6 W9 Z3 ` i7 g, {set note (note *(exp (- (1 / k)))/ k)
/ b9 p5 q) D2 V4 {! r+ pset credibility-list (replace-item i credibility-list note)
8 ` S9 i2 g6 y9 n- n6 Rset i (i + 1): x4 E* O; {) w: p( v" r0 ]
]5 b, P' x2 C m+ I
end
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to update-global-reputation-list
; a$ \$ ~& @ \8 n* k: {% p2 hlet j 0
4 g3 F- L. k) ~5 fwhile[j < people]
% q& x- [0 J, L& r[( y K! e9 I$ X# [2 q( V. M! Q& t
let new 0; A" @1 U( j- m
;;暂存新的一个全局声誉 K# ^' J: g4 b
let i 04 z T1 Z# K8 X4 x
let sum-money 05 m' N$ t8 f8 T$ G; x6 B
let credibility-money 0
/ V1 i$ X% E: l4 ]0 D# Lwhile [i < people]4 }) p5 {( e' `1 m1 X' i s
[
+ V1 A6 ~' b1 Q4 R0 Q+ o; sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; g( l& a6 L7 Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. s. P% E6 U5 @0 @set i (i + 1)1 c+ P* f. C4 i$ }
]
' l) a2 }$ @4 D$ C% a# N$ Ylet k 0; A5 F2 w+ u$ ~
let new1 0: X2 S1 h6 ^% K: `6 r3 P
while [k < people]2 E7 c1 y# S; J: S: L7 C/ z
[
& q; c; k$ R b; yset 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)0 g- {& M1 `2 r8 `9 f0 d, T( f
set k (k + 1)6 W% c9 y) u( ^( |
]2 @+ ]; E. j( w3 `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 x+ B5 V) x$ ^# p
set global-reputation-list (replace-item j global-reputation-list new)5 j4 t' p2 U5 g5 c3 M
set j (j + 1)
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end2 W& L, Y& I- _5 T
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to get-color
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set color blue' A; A3 t9 p& h+ f4 \9 {1 t- Y( e0 G
end
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& e' E3 Q+ P: P; V# ?! G# Ito poll-class
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to setup-plot1# l7 S+ q- ~; O- Y) i
: N$ t$ f& A4 L1 C1 X |set-current-plot "Trends-of-Local-reputation"
5 x( D' y p! f
/ W$ S [9 Y6 \' N' p3 Xset-plot-x-range 0 xmax" W6 v" i2 Q* g3 [, U
% H; y# t# H0 C: f X, h2 E# @0 _: f
set-plot-y-range 0.0 ymax
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to setup-plot24 o" w1 r. |/ `) E* V* x7 ]1 X: o
+ r+ f7 I1 W" i1 @$ `set-current-plot "Trends-of-global-reputation"' u4 H+ Y! d0 c) B7 H
6 A; L4 O# @: B( @9 O# P$ Xset-plot-x-range 0 xmax
+ o3 B" h' f6 D- q) {( A
$ _# M r* L9 \set-plot-y-range 0.0 ymax, w0 k, M5 p, M. l
end
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: W3 S- T& D3 G2 m4 b. xto setup-plot3
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4 v5 f5 r& O5 O: ?( Kset-current-plot "Trends-of-credibility"
$ O- ^+ E {1 F5 s; E" [5 h* m( y: O6 k: F
set-plot-x-range 0 xmax
+ a; F" n: Z3 R+ |0 [% |' h: L' R* [+ Z* i+ [
set-plot-y-range 0.0 ymax7 f, C$ M+ A( @8 I; E. ?9 U7 d
end8 u' |* A; t* |2 C0 @
* A6 J$ [0 x I( B3 Fto do-plots# L; i' G! m/ ] A
set-current-plot "Trends-of-Local-reputation"$ Y" K$ [. I, O b2 a! b" D
set-current-plot-pen "Honest service"5 C, y6 Q3 ]% u% M l$ _
end: x- R6 E3 Y; a1 A' j' V, x
* F8 X6 H; [7 y+ P5 O( \[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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