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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
9 O; K% e2 F5 Z `! h. ^globals[
1 u4 C- p9 [' @8 R, Exmax
: o( u4 y8 f4 @; N9 a" g9 Tymax
6 R* A7 W+ O( Z( x" Aglobal-reputation-list1 V( }; k( Y, n, P1 U9 L( s0 h
) c' Q( ]2 X. o( P. ^! _- W, U# M
;;每一个turtle的全局声誉都存在此LIST中
9 I/ a: F v: k* U1 zcredibility-list# i0 W2 X* _2 f) X) D
;;每一个turtle的评价可信度
; u) [% w4 f% b6 ?honest-service
* Z1 M# E# ^9 y! funhonest-service
. _" }, b# T4 W2 f1 y0 L9 ?oscillation) K c; X! e, p' Q9 a" U6 ?
rand-dynamic" ]4 k; q9 p, Y" O$ M5 ?1 c
]
. w5 g0 V. R. E( U
! o; [3 L8 x; z, y, Fturtles-own[2 Y, d3 [0 c$ n
trade-record-all' d4 |6 C4 j+ x" ]* s
;;a list of lists,由trade-record-one组成- L* s. _5 i7 Z& w
trade-record-one9 ]* D8 Q4 K$ p' N- A2 D- Y- i
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& \ n+ _3 ?1 C& _5 e" N4 L" K, }' \6 R1 p; n
;;[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]]
. t% x2 l7 {2 N1 G/ J4 W) ~- d1 r- 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]
7 }0 E+ T4 j0 S7 [; gcredibility-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
; j, D9 |9 k$ y y- Vneighbor-total
; N: x: ~' j W! G! Z;;记录该turtle的邻居节点的数目) b& r1 Y% Y# m! M. f
trade-time8 i. u9 {2 Z; Q4 e c: G' ?1 c
;;当前发生交易的turtle的交易时间
6 {: {: x* _9 i! Y" y4 p4 ^appraise-give
& ^ {, j9 w1 `1 ?$ h: u;;当前发生交易时给出的评价7 v! I/ q8 c" X7 ?, H
appraise-receive
6 |: r/ {6 [ ~;;当前发生交易时收到的评价
7 ]; C, h/ C A# P2 s! C. E' gappraise-time* y4 ^0 q% ^. y- `# a: Q- N# A
;;当前发生交易时的评价时间
$ s2 j4 e4 Y3 W t: R4 y4 m( ^# qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉, i2 h' D3 y5 E8 i( `
trade-times-total
8 |6 z! N. ^* M0 \;;与当前turtle的交易总次数
" }8 I' `% g! ], L! jtrade-money-total
$ l9 i' X7 R3 t2 ]8 {; D;;与当前turtle的交易总金额
( m2 b! n( O. F2 M9 L* Tlocal-reputation
/ G* E% m$ C( C2 C" Kglobal-reputation, _% u, x( A: }7 X9 b& X
credibility% K! }# `% C0 e. {" _. c
;;评价可信度,每次交易后都需要更新) `( S: c6 }) q! w# k; C6 Y$ R
credibility-all
* d8 q- U- S" m* @;;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
" _( n7 l: O( _3 e& o5 S" V, x* ~: l
;;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 Z9 j) K' W1 V$ B* c& n! bcredibility-one
. n% X" I% I; ?- r4 h;;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$ F7 r1 ?* X6 R1 Z: l$ ]3 ^' B
global-proportion
! j1 ?2 B& g4 n" W0 `customer
- H8 V' _) I1 j# I. ^customer-no
4 C: a6 }/ P0 `# ytrust-ok
* _: L4 C" M* [. z. i4 Htrade-record-one-len;;trade-record-one的长度8 t! W0 ~: A* o d
]# {: d' \3 ~& S$ Q
, n1 ~( N. o, B: P& F: N R/ s: a/ M
;;setup procedure0 d) D$ ]$ L# ^0 |+ V1 k* ^' X3 @
5 }% M" G; q! c
to setup' }+ B5 j$ Y3 T( X: _/ L8 h8 H
# l. K/ q4 r3 q b7 y ^& T2 n9 kca! q2 b/ @$ x! x' T- C2 H% A
7 R! D# h$ K8 r$ U! q3 Yinitialize-settings
4 K- a# q3 |& d/ @1 F. {; H c2 m, K# z
crt people [setup-turtles]9 |1 Y! k) Q- o' D
% x8 g. i' F/ d& Zreset-timer5 y# r2 f# ~/ S$ ?6 _, R
( a5 a; y$ }9 spoll-class
! n' L% W- ]* N2 P b6 C. K5 r- X, E* B# X
setup-plots" ]6 l6 m6 G6 h8 F; Q: }4 h
" O$ Q/ V7 `, i, }
do-plots
: E) H! b- s/ f2 P% g3 ^end5 ]* w# ^+ Y* @* O, O6 j2 H1 m- w
) u8 o4 m5 K4 N$ I2 ~ q
to initialize-settings4 ~8 d9 z" G5 y* O% ]) Z; t# i7 y/ Y5 \
\! N9 f n" mset global-reputation-list []3 \5 f) L T0 r q. _8 G: g
% I f, L$ \* D! F1 ?5 R4 Cset credibility-list n-values people [0.5]% Y, {7 u; h' T" d. X* G+ m7 b
1 O, q2 b9 K" [set honest-service 0# w+ e# Q1 S1 {0 c# P. |
" c4 F+ u1 [( P+ W3 s
set unhonest-service 0
3 r; J( { L1 Z
+ v3 Q! S* }; i: L6 ?9 }set oscillation 0: `. q t$ q" _. ]' N
6 v b4 c/ I* S8 g1 K3 uset rand-dynamic 0
) o! {2 `- C! Q2 W" I) oend- k# _4 ?* t) J% b
- @- w7 s5 r" x0 D. Q0 o3 d6 Bto setup-turtles
7 s' U( H, W6 r `) o* F9 \. ]set shape "person"% ^' T+ p) v6 n% R
setxy random-xcor random-ycor4 ?3 ^0 l+ _4 }% d: t' |
set trade-record-one []
' g% A7 P" |2 E* [3 m8 x( ?- q) M0 _" r$ J Q
set trade-record-all n-values people [(list (? + 1) 0 0)]
: Y) l4 J4 h3 c2 V. T; j5 p+ x4 j+ a" x+ [5 h$ a
set trade-record-current []7 A! o) L2 Y9 G- P3 f, _$ G, c j
set credibility-receive []# L& B; {: b1 L9 k% |
set local-reputation 0.5
) O% D+ u( R5 G+ P3 ^set neighbor-total 0# Y0 J3 ?" K {$ M& H# ?
set trade-times-total 04 S, t Q) \ M z2 W( a+ [6 |- ]
set trade-money-total 0
! s: P p z4 `set customer nobody. @" }1 y# k+ d/ X C6 m* D& P
set credibility-all n-values people [creat-credibility]
6 v, c3 A9 `& E7 C" ]set credibility n-values people [-1]! \6 t* J. j8 d
get-color- c8 ]1 z% P7 o& s
* R$ {; N+ h2 f" ?# rend8 a+ a; x3 j' ~9 Y5 x
0 w$ B2 k* p8 N3 W3 @0 w1 ]
to-report creat-credibility: u9 B0 x$ w( b2 F( ^' H+ ~
report n-values people [0.5]3 i* a; k; d; l+ L3 P0 D, _# R
end
" \ Y% i8 {5 V9 M2 d# m1 Z3 ^( }, n) q
to setup-plots
( N2 W" z$ X0 [0 i+ M0 N
4 L5 R9 Z" V6 l2 N9 K- E1 X( Qset xmax 30
0 c) l: {9 _# A& O* ? M8 `6 [4 x
, Z0 D9 p j' C* sset ymax 1.0
1 S1 K N) P5 d
) {; k! e5 O$ Vclear-all-plots
; a# _0 C# A, ?9 l4 k/ A, @4 ?3 @7 _+ M3 }0 @# z
setup-plot1
C4 `( j7 A& p# q, D9 b _. Y( y+ k) l6 w8 H, P/ T8 W
setup-plot2! v3 W$ I5 X% X# x
% o- x( B& v2 Y7 |5 f- ~) B: _
setup-plot3$ o/ }4 D6 g6 M# \, O, D, T; h
end- {) M. u7 ?" _. r: B1 J
1 C; b6 V" H( `2 Q" J
;;run time procedures
2 {! Z' V8 e0 Z& ]& ?4 S# x
# R- P H! Q! p% G' c ~5 V2 Fto go
) {4 j$ V8 {/ L( P! F/ g
" L2 B, D8 G/ ?. E4 s0 V5 Vask turtles [do-business]
" e4 |& D2 k. X2 N) @/ xend
1 s2 n! h) z4 b( i5 Q) B
' ]5 p+ a5 f c" Ito do-business
: K, J) a. Z! c3 A0 H* S8 w0 |" f) h& ^- p! i: j& t
- K j4 N: G& zrt random 360, C; ~. L$ M9 l6 \& a- |
+ G0 g1 J0 @, t; y8 [fd 1
, p* s) H, h4 p: e6 z$ i
2 o) r3 g/ r: b: Zifelse(other turtles-here != nobody)[
7 r8 [7 w( a# `2 S" s# U% s7 f& o' M6 s. F4 s1 o: y; @
set customer one-of other turtles-here
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;; set [customer] of customer myself) w- f% \/ \ M( w
; U% U% N1 q2 V' @set [trade-record-one] of self item (([who] of customer) - 1)
5 W1 q9 x- Z# V* F2 `[trade-record-all]of self
3 D' G6 @$ n+ D) e* }; m) P' m;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) P4 I+ k' j. a& E/ m* t, S4 e+ p% g/ b2 | w6 s7 ^, Z! }
set [trade-record-one] of customer item (([who] of self) - 1)- r. H# m& ?) _' e; e# I
[trade-record-all]of customer
, z8 ?. g- |3 |* `7 l. b) d
/ p" {9 b3 i" Y, q9 {( _0 {+ @set [trade-record-one-len] of self length [trade-record-one] of self, H; h) G' |' \* z
+ z$ t) c' q' x s/ ~7 J$ S
set trade-record-current( list (timer) (random money-upper-limit))
, X( t! Q% \' M8 ]
/ c6 \: C2 O4 `! e; B K4 {ask self [do-trust]
0 N" q' Q8 P* {$ _;;先求i对j的信任度
! P! [. l& }; c* L& E7 `2 N6 M
8 G2 k0 T( G( g& _if ([trust-ok] of self)8 P2 r9 x# \0 g/ H4 A
;;根据i对j的信任度来决定是否与j进行交易[
e# X7 [4 i! X& n+ Q+ S. M% uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* n- F. v' M9 y* O9 m7 ~( j0 B
2 t% _) o$ t" M8 E7 l+ h% }[9 V* p- `: Z9 D/ d
/ D& [0 W. c) t: W
do-trade
# Z9 e6 W5 e1 l, E3 |* D I# T$ J" L; O
update-credibility-ijl
+ {9 j5 M" u4 |% Y
9 P& T& n% _5 G) ~: |* y: W% @update-credibility-list
, x! ?" Q8 `% a9 `; e4 W$ o% a
# x; y5 a9 v: _0 f1 N9 M6 f9 p" I0 M0 D( [4 Y
update-global-reputation-list s1 |8 [4 G) c" q+ n
: ], C) l) n+ w$ J+ D5 D
poll-class
$ D$ g5 J& U1 r# H; l
- o5 a, D: c: }; Aget-color) i/ _+ W' H7 T2 q
. O2 a" v+ h3 V" p+ N% W2 V; f7 r
]], G( L0 o* T6 Z* J; C
( r8 M! |) T/ Z;;如果所得的信任度满足条件,则进行交易2 V4 ~% \- o8 c6 A* R% D
* J4 Y2 f- H. |. N( J1 h0 x[
' {2 V/ A+ e- d( }+ e7 L
$ D7 _; {) g* X' b" Urt random 360) U3 K. z3 f/ W" }& a1 ?
# l6 D2 K* Y& h# q0 h
fd 1
! v% m% `$ ?# E$ J# r! q* U) m% C2 D6 x) s# i% N. I4 T
]4 {# J/ v r! w
2 _; ?( L% |% [
end, A" H6 h, ?) N. x6 V3 T
: D- F3 u, w9 tto do-trust
! x3 w6 `% W. r5 t8 A8 ?7 I& e5 fset trust-ok False
$ a1 G$ ]; c8 E$ L. E8 C2 s3 ~" i6 [4 f& u5 G4 o
6 ~. J( b* I5 ]5 ~& j+ Slet max-trade-times 01 u! |$ n3 T9 c) b' e0 G) u
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! C( A: V" ?* e, F+ f9 m
let max-trade-money 0
3 E6 u: y! ?2 L4 h4 F4 p, ]2 bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" {4 h7 d: E1 F/ v) T9 Tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))6 K5 s. ~7 [& C% @: ?
) _' z& F x/ }# ~, ?5 a: ?* L
2 h4 u- ^* G. c) Z; Cget-global-proportion
" j- q$ D* C' m+ j D" [! g( Llet trust-value
( h) |7 [. e1 R" M" Mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
7 R7 j1 a5 t9 _8 cif(trust-value > trade-trust-value)
. |2 w; b% R1 e! e9 t[set trust-ok true]- |# s' s& ^; c7 D0 t# J
end5 E) K% C+ a8 p
8 Y+ E" [# d$ C8 r: N
to get-global-proportion
: I1 ?# p4 T/ V" Y$ A g% t7 b5 Rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)1 G* L" R& C. K$ ]
[set global-proportion 0], a. {% F* F0 G& g: K
[let i 0 G1 d4 w! t& Q& B) m G
let sum-money 08 u- ~- ` p( C0 B& f! Q4 H
while[ i < people]% { B% [" L6 f: z: }( b p& i
[3 X" i" S. _* z, |
if( length (item i0 ?) z+ E9 R4 q
[trade-record-all] of customer) > 3 )6 f' ?+ ^1 H4 _ G: H1 E6 g# b
[ ^' H7 {: g+ l9 x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ V2 M, j* G! v1 H6 V6 {& o]; q) C3 ]9 u" g# n1 N2 o
]
9 h& `. a' o! w3 @3 Nlet j 0, }7 d) x: U! N) T5 [1 R
let note 0
; A- I, K+ n# T4 T7 [) Owhile[ j < people]" x/ }! Z2 E( Z
[
$ j( Y( y9 F/ C8 E' Hif( length (item i
: D6 ?% s9 ^9 l[trade-record-all] of customer) > 3 )
4 l0 w, S) Q. {" ~( n9 |% n, s[( H- R% V& ^( G0 G7 Y9 u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 f* U. P5 K( p1 X[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 @2 a) U5 {: a) y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* G% `: \( e0 l3 @; q. y+ u]6 f. m& u" D+ c. l
]5 \& i. a! V$ u
set global-proportion note4 [; g6 Q6 H; t" y5 P& A4 t# J; m
]
7 [+ e( f* k+ q3 v/ pend* B! a7 C( B. y ^
5 y, k$ M: K" l' ] Z
to do-trade5 b0 ]+ a: }& ]# Q" C5 X b
;;这个过程实际上是给双方作出评价的过程' |# a8 U, f6 g( A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! y5 n7 q" B' xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" P6 t) c/ o7 o" i$ H! [. Pset trade-record-current lput(timer) trade-record-current2 D5 i; Q8 Z2 A
;;评价时间
2 ? \- r+ ]8 {/ [" yask myself [/ @1 k @9 _, u% H8 z, q6 e
update-local-reputation! o. g' _1 q/ F- V/ ^+ ?2 U
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 W1 q+ S. B! K% q]1 H0 Y1 q- H3 k# Y0 x5 M
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 E" @0 `- v ?0 i; P: A- w: \# U;;将此次交易的记录加入到trade-record-one中- b) \ b( C3 X7 _
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: F8 i) w; t3 P3 E$ ]2 Tlet note (item 2 trade-record-current )
- t' T, M4 \+ Z! |1 k! cset trade-record-current
9 A% |+ w" y! C" |2 N3 m(replace-item 2 trade-record-current (item 3 trade-record-current))
" k5 g; Y; P6 K3 cset trade-record-current* v4 F+ S/ \- ~1 d
(replace-item 3 trade-record-current note)' n" M7 A1 h# ]
0 \3 }* g- y/ s# z, w1 l2 l1 i
1 P5 z: z) Z. W# i! V2 o# gask customer [ _. H& s7 d2 x$ K
update-local-reputation- _; L. y3 P/ H% A$ a
set trade-record-current6 m M Z9 \# D* e
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 Z. N0 F3 ^) R, U, I( w* ]% G( d# o8 g
]
7 M2 q' T0 Q- E. ~3 v; {
$ |" o$ G9 T# Q* M3 D# r( ^: @# L3 }: | m0 J
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' }: g* v- U$ d3 z& t
" H6 h4 o: O+ t( F, `3 s& Hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ B$ T2 I8 P# Z- h: |+ y4 J# K, _;;将此次交易的记录加入到customer的trade-record-all中" h) y) t) U6 r4 X, c4 x
end
; z% ^2 q! A# r+ }
" A# t6 l( A/ @) _+ Z$ |* u( \+ oto update-local-reputation
# }7 Y! V4 U0 H. e5 H0 b7 P* Xset [trade-record-one-len] of myself length [trade-record-one] of myself
2 ]1 T4 I* f# A. h2 u
$ U: S' o, B/ p' w5 j1 `" |) Z* F. A
;;if [trade-record-one-len] of myself > 3 - d: ?4 a: ^* h* H
update-neighbor-total1 t- E) Q4 E* _( y1 t$ R# I
;;更新邻居节点的数目,在此进行
5 x/ P* Y' H! V6 y7 flet i 34 S' B, E0 y0 {& }' f/ B. E
let sum-time 0) u! O/ W0 b/ \; @9 y
while[i < [trade-record-one-len] of myself]; [3 _! n. A: R# R
[; J& K( f# }! h2 |. @6 M
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ F" B- W$ D1 G7 L# o' L
set i
0 U6 G4 c, w8 c2 @6 l% V( i + 1)
4 r4 q7 ]3 Q1 D1 H" ?]
" S. d- {7 _6 Elet j 3) y Z& _2 Q* {. y' B
let sum-money 04 C* }( [1 R( z" s
while[j < [trade-record-one-len] of myself]5 l7 b1 O* o5 F7 R/ A
[
' r( t% l; w8 [3 Sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
" n5 f# \/ _/ ]3 n& |- O( {, ~set j
]4 k5 H9 N9 h) ]9 j( j + 1)* U' Q w* R) K
]$ u4 C3 F& ?6 m' g/ j/ I9 i! ^. Z
let k 3: a: G; p- ]0 X' n
let power 08 c) o1 y) s3 ]8 b) B
let local 0; W" L3 U5 W5 H
while [k <[trade-record-one-len] of myself]
2 D& S( C& ]6 E! M& ^# ?( c3 }[5 n0 h) v' `4 j6 M6 y- N( W( M
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) 5 j' I, `' F# N D. {" V7 `
set k (k + 1)
" m! a9 y- Z! n! u6 S]1 J2 ]3 G, r7 T
set [local-reputation] of myself (local)$ s: T j9 Y3 ^1 B7 { g6 E6 b. {7 y
end- z" `6 H: C8 M
, ?. {- V$ H6 v! Q5 p- L; U
to update-neighbor-total/ [" w. G- X: A a! w0 o, _3 W W" J
( C6 }- k2 C/ B4 y% P* E
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 [1 n7 { ^3 t3 f: o$ h2 x) T; O, K" N c- _
5 q: S, T3 G& D, |% q. eend# N! k1 D2 Q/ [- u( z, w# k3 m" D
5 m6 P1 j2 _& Y0 z0 Y
to update-credibility-ijl 2 c ~9 z# [$ p/ b; k) M
) ~ q( B& i3 ~2 M7 X3 c8 }; o, M" o- |
;;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。( _/ E+ v1 z3 P
let l 0
* H r/ d0 ^9 N0 Q+ g" `1 l) Ywhile[ l < people ]
& p! G# S0 C* W6 F% ~4 [/ r+ n;;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. o9 l& z4 H) y. ^( ^ Y" u, u ~' T4 D
[
9 A" ?& I; Z G6 `1 s1 L. d, ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& m% M1 F# P( q! K& Pif (trade-record-one-j-l-len > 3)
% k9 ~9 K. K; W0 h[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
- E5 g1 q, R( ?0 ]1 d# @" R! [let i 3( ~% o( `+ s+ ~6 ]
let sum-time 0% a- X. c! z, Q. u' ~
while[i < trade-record-one-len]* M! v& _* e$ |& A1 G
[
! @7 g! A$ t2 F+ a* `7 {set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) f, @% F" O A; U
set i5 i; w% ?6 d0 i. D- o
( i + 1)' G* ~+ j; R+ j# s7 h- T
]
+ O9 j* O- t0 E8 x6 T! u alet credibility-i-j-l 02 ]; z/ q, O2 Y6 G' j0 y! i
;;i评价(j对jl的评价)) ]) h/ ~, k% T; C! {( }' Q' t
let j 3
9 t5 {) J$ }! ^let k 41 `* t' O" |7 E. y$ Z1 y. L
while[j < trade-record-one-len]
7 ?# x ?$ z4 [4 u[
! z( u4 }- D5 I" J3 J& _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
% |( y5 Z9 _3 {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)! x- N- } {! k
set j. P6 V% d, ^+ Q
( j + 1)
+ v: n/ ~; c9 U] g8 g) ?! U( A9 n$ 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 ))! K$ }1 A1 F' V9 Z" o) \
b4 P9 s' X5 A* |8 O$ u' V0 w
" d6 I+ {* o) d: F/ x2 }" x
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), O l! M& j) f& A. m7 d
;;及时更新i对l的评价质量的评价3 B2 ]1 I: g" X1 k- P/ j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 P& y ?) p- D7 v# Eset l (l + 1)& g( X% ]) i3 W8 l# U6 R: w
]# M, x& b, k( r% C0 w4 S% n
end
7 y: `* y8 C9 C) N5 h
" L( W+ X1 f( }3 m; ~- p, H; Hto update-credibility-list
$ t! B$ }4 c. p' B9 P& Flet i 0$ m# J/ K0 [) v: g& \$ Q- A4 e* T
while[i < people]
7 k0 D/ |2 I! g9 V" z[2 K7 f. V, `0 N" F* H
let j 0
/ l3 a/ n$ R' j3 Wlet note 0( p& O9 T$ ?( A; h
let k 0
! i$ K1 G" T# u! R) \7 a7 l0 d5 K;;计作出过评价的邻居节点的数目
' V T O9 \' P2 M/ f8 ]while[j < people]0 U+ x' m/ C- O8 p) r8 k
[
7 A/ _- P% r+ D F* Q# xif (item j( [credibility] of turtle (i + 1)) != -1)
. i8 _* j1 Z+ R4 R% {$ N;;判断是否给本turtle的评价质量做出过评价的节点% n- n& ?9 V( W; K
[set note (note + item j ([credibility]of turtle (i + 1)))
& Z9 k$ X' l; a;;*(exp (-(people - 2)))/(people - 2))]$ x! V, S+ t) `: ?* U/ g0 C
set k (k + 1)7 B$ @& Y1 b# K z% w
]
7 a8 {6 O0 x; \& A- |8 vset j (j + 1)
, O& N8 E6 @# P" k1 U& ?]
8 W, F, V" x0 ]5 F9 H7 Wset note (note *(exp (- (1 / k)))/ k)
/ S. t2 Q0 ~: J+ aset credibility-list (replace-item i credibility-list note)) ?$ m2 \ W0 z
set i (i + 1)
9 {, S/ t- r7 b3 q]9 ^; ]% y" ?9 o& M5 D7 K2 @ D
end
7 o9 e2 s+ h% ~. e _" ?# @* [' l7 k
to update-global-reputation-list% K( Y9 E* f' L* l
let j 0
: U4 R: W" v7 {9 C0 `while[j < people]
; g# `0 }1 j7 k9 y" {, K[7 _, F' W- ~( \$ d$ R
let new 0
) g% H& ~3 y0 ], k5 ~1 S;;暂存新的一个全局声誉
, l6 D0 ^5 e; I- }3 J, ]let i 0
8 E! @' f H5 c, B6 t2 s+ _let sum-money 0
9 ~6 k/ p8 |' B1 o+ alet credibility-money 0+ V8 q% I* v& m: G5 Z) S) x# d# \+ f% q
while [i < people]4 Q5 z3 V+ l* M' x) |% G9 C4 k# D
[. z5 }( c; C" l# J0 Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" }! U5 C" _4 v- o
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 W& k$ v8 L8 A8 j+ j' M7 L. Pset i (i + 1)
3 _4 b( ]: A2 p) b. l6 N5 T/ E# e]
! H5 n( o% P h' {! Wlet k 0* p& G2 ^' X. |* [ V% i
let new1 0- ?* Q! _2 f. H: d0 U% R
while [k < people]
7 Y K) G0 x. o[1 b& m6 P; J; @% r1 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)
# Y5 t4 X, t5 i5 ~set k (k + 1)2 a: \9 ?7 w1 ]
]7 E: {% G7 x% A( X d) Z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: a$ T, P3 s! z& d7 Q" z0 tset global-reputation-list (replace-item j global-reputation-list new)
: ~* n' F+ t8 D0 [& Z& ^+ hset j (j + 1)0 v( D) z) O/ G1 U$ w5 O i% @# g
]
# t1 V: S: b/ i1 oend
# [7 k" l# a' C! R N, m: {, _/ o' B3 A! y9 f: w
) s3 d5 b8 F, m3 K
, k7 s; r7 R) t- A) Zto get-color" v u% C! T/ ]% X+ r: a
, O1 u2 h/ H0 ]& P5 w r" S: y
set color blue& ], P% {1 R K! w, f
end
* J& B5 X3 ^* Y4 A, i4 `& E2 Q! Y" P6 P# U/ M- M- w2 Z1 C
to poll-class
0 x" D9 K7 `1 L7 c+ iend. Q O0 g$ b' a1 x' T" J
T4 ?$ F1 E) c" g/ l0 [to setup-plot1! e6 Y5 W: l; g R
* H" s! ?$ ^( ]4 j; Q4 _set-current-plot "Trends-of-Local-reputation"
t- b5 x4 A: ~) p( e5 b* G% x; Q% R' s0 k
set-plot-x-range 0 xmax
% t2 Q2 T: k( K+ T
) G. f) U9 B. x5 O' Kset-plot-y-range 0.0 ymax
, Y/ k8 y: t0 H! S. d9 V8 }% Gend. ~4 b- B: ~9 B9 T
7 l9 f8 y, g( ]6 V( Q, n$ C; Q/ }to setup-plot2+ l7 [) T% ]4 S; A
# A4 l. F u" G( `3 l7 f! M
set-current-plot "Trends-of-global-reputation": B1 H8 ]+ l/ w. H
: y: d* Q( u! k
set-plot-x-range 0 xmax
t/ h2 W7 v4 Y0 A* U! e& o, L" l$ S" g; ?! F5 l0 c# ?
set-plot-y-range 0.0 ymax0 G2 Q, P$ ~* h p. L6 l
end0 N' k9 ?" u! m) c( f2 ]
: P. g7 F7 C2 Z( p6 v( Y
to setup-plot3
$ n& S# u5 Y8 x& z9 @* Y3 s3 y' V4 U1 C4 d3 v, C" h
set-current-plot "Trends-of-credibility"
E. @# x+ l7 r; N, c% ~- i+ G2 d q9 r m* E
set-plot-x-range 0 xmax
! L% \8 D8 `; ^' D
( z# B, Z+ T; i. Mset-plot-y-range 0.0 ymax- F1 |* P, M9 q4 `0 J9 I3 j+ \
end
2 j0 }0 j4 x4 c0 C0 H% `, v2 k# P8 u( o1 v2 _0 E
to do-plots
) R1 k$ J4 R) }! q5 J# Rset-current-plot "Trends-of-Local-reputation"$ z9 a3 K4 @3 G% a4 |! m( ~6 e
set-current-plot-pen "Honest service"
9 @4 U6 N8 Q1 K* |9 H* |2 gend) W ^6 @: |: r4 g+ l* L
8 J: y2 @2 O4 p+ F( N( B6 y$ o
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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