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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+ ^+ W, O- h- K2 Z) |3 [
globals[
! f4 L/ z8 k3 w N0 Q& E' }. axmax" Z! P$ K9 n) m
ymax0 L% \8 F. I7 s6 x' `+ G6 d
global-reputation-list. ?' W) Q1 R: V. H% |
, a7 B# F) R3 O+ w" A1 U;;每一个turtle的全局声誉都存在此LIST中+ v [8 v. X9 ^7 b/ h( z! X# F
credibility-list
* g& v0 W, U7 X" d6 k- K;;每一个turtle的评价可信度
* ?7 A% U7 _. ]" N$ chonest-service
4 B- w/ p& F! R' [# y& y; ^unhonest-service# u- p5 V* n/ G# P
oscillation/ {# L' O* R: g6 l4 m, z$ {
rand-dynamic
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+ T4 J- s4 K) Q$ W& B/ w
) b3 z( C6 ~# Q) G! t! `' eturtles-own[
4 ~; R' s4 Z# F/ c: Jtrade-record-all
) D3 W9 |6 }, ]% R0 x;;a list of lists,由trade-record-one组成4 i9 ~; D7 n* U$ ~2 U
trade-record-one
Q4 l9 T1 t# W. K: P* k9 g3 |;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
/ E. E( p7 }+ u: A: h9 s9 ]' n1 R# v2 ^, P: W
;;[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]]
+ [# a$ q9 V$ v$ x# Y: ~! r& Otrade-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]0 l9 A, S: [0 y8 |
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# s+ j0 K. I1 E _2 u, K7 b0 o
neighbor-total% Q2 C. W, V) ~6 q0 ~- U
;;记录该turtle的邻居节点的数目
2 v' h9 M: O& _trade-time
3 |: k! f6 M/ b& D$ H/ w;;当前发生交易的turtle的交易时间
' L! e. [7 X+ f" n- Bappraise-give. u( ~* U) }: \! E
;;当前发生交易时给出的评价6 N3 l' _* T/ `, c9 l; M
appraise-receive$ T% f9 n7 F7 Y' `
;;当前发生交易时收到的评价' K+ [5 Z9 r. f2 ?
appraise-time1 I, Q& o; C" [, ]
;;当前发生交易时的评价时间6 t6 ^4 u5 _+ l( ]' V1 d* u' @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, V* P; T8 A+ @. I0 r
trade-times-total
( z( y$ J( X3 V. t;;与当前turtle的交易总次数
9 I8 J$ t8 C0 ]- t: G/ [) `; `8 {trade-money-total6 L/ s* I+ S# }" E! v8 [
;;与当前turtle的交易总金额) J6 u# Y. o+ D* f; t* g
local-reputation
3 D; g4 S4 ^" [/ j7 U3 Tglobal-reputation
' x5 [9 S9 @7 y0 L) S* Q, \credibility
1 w0 D0 q9 |: ?* P X;;评价可信度,每次交易后都需要更新
- j2 y6 H/ \/ p# s# h2 `1 {credibility-all# r- ~( n$ v5 u" q, U# 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, t! H9 k7 A# R; j( @# W
7 @. y2 H' D: q# `: k, S& G;;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
+ J W* s1 ]5 K; e3 f- rcredibility-one
8 s8 F" c4 x% z B+ r$ y; ]$ A. e;;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
' [/ ]) W$ z/ l1 {' L: eglobal-proportion( `- Z3 b, U. S7 Z0 ~' X
customer0 n% Z- A' | ~9 q% D
customer-no: S7 ]; d7 E8 z
trust-ok1 Q7 _9 O0 s4 N0 E0 H
trade-record-one-len;;trade-record-one的长度; T n; T" L( m N6 h
]& f+ f# i- m" B, A- A' z
/ e2 b4 k' [ } K# Q;;setup procedure$ J4 I6 i, z1 T1 F6 ?; s% s" X
9 a! _) [! v- t }to setup( m* H1 x+ ?9 n) p7 z/ a. r s- X
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ca
7 J. t9 f- k# }; k* W( |" {$ P0 }5 u+ M5 g+ T ^2 h* [* u
initialize-settings3 C8 o: o7 i" b, C6 h
_0 {& B3 H$ r% n) g' Y- Lcrt people [setup-turtles]
6 _8 j; U3 Q, O E0 j$ ^" b3 u4 E
8 |' ^2 U' F% S: Q) Z; I; y+ Dreset-timer* H1 |1 B+ v! G! y- l2 `
" F" m: X) X& Y4 ~% O/ j9 R, V6 Fpoll-class
% [$ w! d7 F* ~: `3 H. Y
5 w- T% O5 }3 v) v, A7 u/ a% l& e; ^setup-plots% V, s9 N5 k! L' [/ W9 ?! A( P
7 e. T4 b) D3 J' k; ~do-plots; i) C \ h& R6 N2 ~
end
" `4 {7 M3 E& Z8 x' h/ r7 h1 u: {' f
to initialize-settings
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) @/ `& y% i9 b2 k, Yset global-reputation-list []8 P$ M& s, G3 b, Z
$ X/ p' E v* i! |1 ]& [1 Tset credibility-list n-values people [0.5]9 d) t8 i$ J8 I4 H( n, i/ Z/ I# Z
- L9 k! b. B2 s8 Yset honest-service 0
; e X. M1 x% C$ r4 q/ ?
7 t5 v. P( I4 H' ?5 i% ^set unhonest-service 0
9 L3 p6 E) f- M/ h
( v. D! h2 S3 V+ [" Z$ b/ \0 f# Q" Sset oscillation 0
1 k# N- q$ B) m' E
- L. r4 l& J; d8 z* d" l! p4 vset rand-dynamic 0
& A5 z. T& v r/ q: b7 C7 Bend
% E) Q6 @ Q4 A A6 b$ b U0 c2 G# V
! u5 W0 E5 S: |- [9 D) _) f- q% {to setup-turtles 1 T; Z3 y9 u' Y8 p9 x
set shape "person"
9 \# M+ Q3 K/ k. Esetxy random-xcor random-ycor
1 ^7 P4 u7 X j7 Iset trade-record-one []1 b- ]6 ^7 A2 p7 r
2 k& a/ t% U+ X4 M( q% ]) h7 F) _set trade-record-all n-values people [(list (? + 1) 0 0)] . `" p, D8 Q) a! u; M! T, v5 m3 k7 L
% j* T2 f7 V9 e* ]
set trade-record-current []; n# j$ N0 U2 f/ t) ?
set credibility-receive []! Q7 Q" g2 p9 a6 g3 \, H$ s
set local-reputation 0.5+ Z+ x; Y$ ^% w% h
set neighbor-total 0% |5 z: ~/ c6 |' D1 T' l
set trade-times-total 0# s A. V% V6 C1 |4 V8 O$ t1 k
set trade-money-total 0/ y3 G) @; S2 s5 C8 y3 S( X
set customer nobody8 f% a1 E- v4 @, S4 N U; g5 h
set credibility-all n-values people [creat-credibility]1 T- B+ H$ x, k: H& m# P
set credibility n-values people [-1]) ~% Q5 b9 H" ~! s
get-color
1 r2 {0 O7 ~% y5 r2 ]6 x* e3 _* X
end! f3 }3 [# H; x" g
' [) R" n1 m. s
to-report creat-credibility2 C- o! D9 h$ U- m6 z7 J
report n-values people [0.5]( Y. W5 b0 c% T
end
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/ Q# {3 P! Z4 q/ _' o9 o; ~0 cto setup-plots
2 D; ~" X# `: s x! F: {; l( f% q" w% n* q( G
set xmax 30
D+ I/ z: ^: {3 u+ P' G, {0 k- f
set ymax 1.0
8 X( P |+ a9 g+ m! D7 G c
# H6 o; z+ W9 V$ N( l! _; Y% Y: J) [clear-all-plots- y. F) ], b0 \
2 G5 |. T& O8 l6 |3 n5 ksetup-plot1
6 d6 I; [: H7 Q, W. \: c, B7 I0 m* d4 {# D
setup-plot2
+ A7 Z1 l- ]: A- Z3 c' L h; E" U: y: Y* ^; N5 E$ y }
setup-plot3
) v( E. M( R: _' y* c: \0 X+ {end
" z$ \: L0 `& x- r* P* U
! G/ Z0 ]; d& r- _;;run time procedures$ d9 k( u* }1 |; b1 f9 [
+ F$ L* v$ h w2 O: d& ?/ D( B
to go3 `. g$ \; X( B/ H+ k
- h2 B! q! C- x4 j# [
ask turtles [do-business]0 w ^- J" f$ D) `" E
end1 L' f' l( a8 c" F" }/ [; r
4 V+ g, Y5 M; T4 H
to do-business ; Z( E$ v" @" U
! U. `* B) S( r$ v4 x% V; N* f3 C& U) d' N5 G
rt random 360
2 d# R L/ [0 I6 e+ H5 x& T
& {; o2 l. } p2 J8 o/ l* h8 lfd 1! Y/ K, r7 q/ R; _* v
" I" L/ N% I* u% V. p7 g* P0 Lifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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+ O0 Y6 F+ P% z) i;; set [customer] of customer myself; H/ o! r+ n/ [9 ~* C& _
0 v- L0 O% `/ Z& S. d7 N: H) F. ?set [trade-record-one] of self item (([who] of customer) - 1)2 I1 s+ G/ q! N' i& T! j# i3 D8 ?
[trade-record-all]of self
2 A* ?+ b5 l4 G- n9 ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. @7 K7 R1 D' g/ L
# v- y/ k. y6 f! q& C+ `: Dset [trade-record-one] of customer item (([who] of self) - 1)1 P$ V2 A% Z( n+ X- z
[trade-record-all]of customer( F$ ^4 u) I8 p) `
0 E) q, j- u0 P
set [trade-record-one-len] of self length [trade-record-one] of self; I3 q) T) e5 [6 a( ?) B
% \! u% s8 n. E% _set trade-record-current( list (timer) (random money-upper-limit))# g. n. O7 x. L& }- q6 d
6 C9 m2 D2 Q: dask self [do-trust]
0 w. s% ^1 I0 q( J;;先求i对j的信任度
+ C4 [0 F" t( Y! Q5 @( }7 K; r6 H, H( |% s
if ([trust-ok] of self). A$ V" v" O: B$ [+ c6 S
;;根据i对j的信任度来决定是否与j进行交易[# f% o5 p0 X+ I0 z: A) p
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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H* _9 Y3 g% _$ |3 }[- X. Y/ q& N5 }! ]; x3 _5 E) J
* X. j2 X# Z0 o9 M, l1 bdo-trade9 i3 `4 h0 j( S) n: a
" g) ~2 h* S/ P5 m! Vupdate-credibility-ijl2 _$ {1 V+ o& C5 U( ]+ M
3 t5 [& b& { h5 T- mupdate-credibility-list& F7 b: s7 e" [' S) W! c$ w$ H- t
3 W) }/ u, ~8 a
- G! i5 u% Q4 R$ P: x2 Uupdate-global-reputation-list
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poll-class
' W+ {3 r* b G3 q4 h! E& a0 ^1 {' R& k
get-color- P/ ]) d3 L5 M V
# {- z! l- m; l]]. }" p4 Y6 \2 ?1 ^6 I B
) E( R. b( b% v2 G
;;如果所得的信任度满足条件,则进行交易
( }/ x" q4 z3 z$ x" p: |- F9 T2 l; L$ w, c* }
[
2 e( [ x" p5 l/ y$ j5 l( r% W) o9 {0 U9 y
rt random 360
5 `( c) V& O [, a
% b+ k1 z! D! y/ M, t; sfd 17 `. W" {5 ?# S! ^# b5 o
; m. `0 e2 U0 q$ R9 c' h, \# D
]
- K* v' H% ^4 T6 c) \! x. S' E# [9 _; s2 L+ |/ V/ @# I* K
end
; s# t4 \; |6 ?1 }9 R) b$ {: t
& F: a( }4 ~, ?) ] ~to do-trust
1 q' o* T' y$ Q5 ^6 Nset trust-ok False' z+ o8 o& W2 \+ ]# d
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let max-trade-times 0; G- z. M" H- j0 x4 T, k- c
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 o+ q( B1 D/ b+ }let max-trade-money 0
$ ?; e0 v) v8 H0 }+ uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- J. X+ G! X, Z' C7 Elet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 k( Y+ u. n6 W# Q
; F! S% @! O7 z$ @* x
9 y& O; U2 r9 S4 Xget-global-proportion
/ p" ^/ v( K6 R0 h- ~let trust-value7 `9 {. h# r7 A: A* E7 V
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)' }0 q; w$ \) Z& o- M# P
if(trust-value > trade-trust-value)4 J9 l6 U- B7 D9 j( N& p
[set trust-ok true]
1 ~9 c1 ]" I% z1 cend0 ^. Q+ l4 k) x& x4 j1 i
" z! E) {* S( i
to get-global-proportion. s: W) W+ A- v' h; Q8 K, ^# V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' q; F! z7 c; I+ G
[set global-proportion 0]
& z" e5 W9 S! {+ j[let i 0
+ Y: e+ E, C, k. [8 D' o" f7 hlet sum-money 0
) x: Z( @1 w6 wwhile[ i < people]
a- m8 R! A# K[
. @" K" N: X. X D+ {; Zif( length (item i7 e! |- Q0 N# [2 g9 u8 c$ C
[trade-record-all] of customer) > 3 )0 l6 t& c0 A8 l* Z, e" l, ]
[
% E# \- C5 x+ a8 T9 ]1 B6 Sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! T6 J8 W% }/ V3 o2 g]. R" t; U+ y( W9 ]7 l+ v, j7 X
]
8 N" e9 G1 V+ a; E3 g) P6 x0 _let j 0/ G. x6 v' o; F% L; }! H, M0 T
let note 0
7 ~3 T0 H. S" \2 N$ L: ~6 E! I. Owhile[ j < people]
4 e1 O: a; Q5 v4 D" B[
( H5 X \! |- r* M7 o( b" [if( length (item i
$ x& m: W, @% t[trade-record-all] of customer) > 3 ), f: d6 D' H. F% T' @$ L2 c
[
2 D' [8 T% r; ^; U9 W: Bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 }6 {/ G. H4 ^. W2 |[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' D9 c' z9 ~# G- ]+ \[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: Q6 k' |9 O+ ?+ Y; w( | F; S
]) O: t6 X& l5 }
]$ n S% G0 `, H0 e W4 W
set global-proportion note
$ h6 v; e% m, n) h- f1 v]- @* ^# ?7 g! K8 N4 Q7 S) ~0 L
end" w$ p" @: U0 @1 O' M. v4 V
: D3 h5 C/ W) m& ato do-trade
4 f$ A% T9 {* p" F9 b;;这个过程实际上是给双方作出评价的过程# V8 p' m# Z! S f6 L
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 s0 h3 `+ T9 _4 u7 |1 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 W* Y* f2 `1 n& S# uset trade-record-current lput(timer) trade-record-current
9 M" l2 ]! |0 f% }" R' c( N;;评价时间
2 H0 K: _$ c3 m% Wask myself [
: E- B, Y& _! w4 w; |$ j$ t, d& `update-local-reputation
0 x8 b& K b& ?' N$ jset trade-record-current lput([local-reputation] of myself) trade-record-current
: L h7 P* S1 o]
+ B7 y8 G* U# x+ b7 w, U4 Eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. _& d, \" U5 _" L& u;;将此次交易的记录加入到trade-record-one中
' s# Q: v2 D& h0 T" S; Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; h& w4 ^& r, ?1 b o: I. Slet note (item 2 trade-record-current )+ r3 b1 v% m2 r- I8 I
set trade-record-current
9 i9 I1 i# N( |4 r(replace-item 2 trade-record-current (item 3 trade-record-current))
9 D8 K( a. i, I% g( Rset trade-record-current$ E( K" ]9 _+ t. U9 H% S
(replace-item 3 trade-record-current note)' }0 d( I! h# g- ^4 m( t
3 C" Z' K! g: ?6 s# U6 p
! z' x; A& B3 T9 f) G( o
ask customer [4 ^5 Y7 N7 |# e( R! X. r) d4 l Z# m: x
update-local-reputation5 {: `# D, ^# L
set trade-record-current
/ W+ V% A% Z& ?' o! y6 h1 C8 N(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 o+ E' _: w) |2 j0 }% D& [/ G
]
1 A" Y+ A4 g* \! G9 @& f0 N3 u
3 w; U/ Y, [& A8 S; Y2 M6 x' u- Q3 b3 s7 d* m2 ]& W y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 [/ f( }0 M- [ l& _" T! X6 H7 b9 |3 b6 A. Y! O5 }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) X2 }5 g5 v8 O- F0 ?. O7 A# z
;;将此次交易的记录加入到customer的trade-record-all中8 x% u9 x6 W' ?# k5 @
end
) n3 y0 u3 I6 {8 C5 \( m) P1 d1 _, T9 M9 w7 S" ]1 R
to update-local-reputation
8 P& b9 r: o& n6 xset [trade-record-one-len] of myself length [trade-record-one] of myself. ]5 S. W& [% N, V
5 ? @5 u C1 \7 q+ _1 t
0 c! Z4 }- T N$ A9 g;;if [trade-record-one-len] of myself > 3 6 D' T& w; c. A
update-neighbor-total
% g/ I. ]2 S( c) m( I;;更新邻居节点的数目,在此进行
. Y" X d `0 w( M! d. ]let i 3
4 @* W5 } ~- }3 c# W* [4 o. Elet sum-time 0
' p; i, b& y4 [3 R9 W) \" Y+ U9 k; uwhile[i < [trade-record-one-len] of myself]
: u$ B, B$ s4 S) f8 R' t- [, z[2 ?; |5 E m3 P" R* }1 \2 h# l$ n
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" E7 R$ e& c* L2 w( A+ i5 b3 Y( uset i$ O3 ~8 H; A/ n
( i + 1)" A' r2 v% m$ W5 K- [, K9 j
]
4 i' m& P4 E0 C6 Plet j 3
- O( b5 v" Y# N5 r* A2 Nlet sum-money 0* P: ~$ Y' Y; g4 u
while[j < [trade-record-one-len] of myself]# W" k0 g7 o0 M; K$ w& h
[& ]2 V/ q2 g6 _& a$ F7 D
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
- J! j' I3 H( ^2 t5 qset j: k. T+ y" y% \) l t$ y& A+ j
( j + 1)7 ?6 J+ p% x7 g( e$ ^; b3 d9 M
]
! L: M3 s z* m: alet k 3
( z8 u2 e" _1 T% l- E. O8 z- Alet power 0
( O- n" I; K9 ^) `) A3 Y2 klet local 0
2 s' m5 r* J4 Q0 @; S: t! b' Awhile [k <[trade-record-one-len] of myself]
1 v c- g5 V" _* J[
: S; z8 Q; B( q8 ?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)
/ N* B1 w0 M* u0 Kset k (k + 1)0 R- p, r2 {0 @! ?5 e" l" H
]- u% V/ ~) ~8 D6 G# C
set [local-reputation] of myself (local)
( j+ c! ~& {% M: A; ~9 D0 @$ Tend
?4 e! q' k/ ?: {% M
$ T! Q# D: }- u& Q1 W2 e* P# Ito update-neighbor-total0 E- L( h7 V, I1 T% t+ g% d
$ G8 |4 z7 t: J0 e1 A2 N! Oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ C) r3 z4 @5 v! s4 k1 o0 j5 d3 S
/ ~& X. X8 E4 B) U+ ?
1 F2 _ J1 x9 e2 Y+ Fend( f8 N- Z6 d) ]
1 X5 o( n! v3 J/ V
to update-credibility-ijl
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& A6 g4 x/ u/ X' Z I% i) g" |;;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。; w& |0 F- X+ d
let l 0; o2 T* f1 G- E6 G" F
while[ l < people ]
* w$ H2 _7 [2 h;;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7 r$ n! D6 ^: d* ~8 U$ O; f
[2 m! ]! W) w0 l
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- a$ u3 O. r0 N6 {5 oif (trade-record-one-j-l-len > 3)9 \3 z2 F c" \6 M3 o
[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
j9 J+ ]+ m2 _let i 35 |) i9 t/ d0 |
let sum-time 0
$ }5 O2 x F9 b) v {while[i < trade-record-one-len]6 Z+ M1 s$ S$ U5 K
[
. `* r" z/ ] c0 z, A- c5 L) kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" g" c4 A3 ^1 u
set i9 y# ^% ]5 U! `; a2 \6 m( s
( i + 1)
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2 l" R, o* v& }5 o% O/ t4 Klet credibility-i-j-l 0
0 @, Z6 ?5 x+ l7 V" A;;i评价(j对jl的评价)# P& {4 D9 ~$ w; `
let j 3
, [ H, }1 C1 G& z: P ~% Dlet k 4
" u: h5 ^/ ?# h8 }1 q. ?# p2 Jwhile[j < trade-record-one-len]
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- H i- O p7 f% u" t* Mwhile [((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
. R9 m7 f% E+ N! A7 z; Dset 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)' O: N5 b$ r# z/ [, @
set j- j. w) M$ N* v/ H7 p- S
( j + 1) P$ X- |3 U$ ]7 H
]8 x- R9 Y2 e8 j, y, U* v4 E( v1 [
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 ))) d9 _2 n9 c. e
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+ e6 l6 c$ j6 M" C- J$ J& F* M2 Z
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 s, {, g: G) s% D% c4 \, y( w; a6 d;;及时更新i对l的评价质量的评价
, |: g1 T, ]) a; L$ v- P! }; jset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' t% N, x( U* b/ ^+ ?
set l (l + 1)2 s/ }- d5 c1 a1 n8 R, t" [
]
/ C& H0 E/ f3 cend
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to update-credibility-list
4 U/ D6 c! R+ B- J5 R7 O" H8 hlet i 0
; \+ T* }1 }' m! |while[i < people]( a8 t# F. E, I6 ]$ A
[
: x7 s6 A6 o1 h: B7 Y3 vlet j 0
' s& g% s, W% C' |* ]$ W6 N) L$ b0 L8 Dlet note 0
5 _) [! Q! f9 Ylet k 0# a: c( J: S4 d" J, n; M! k! o
;;计作出过评价的邻居节点的数目+ d# p1 u5 z; ?$ c( T. k1 U
while[j < people]
% r2 C% e0 g( g# a0 _" ^[
( c; A2 _- P- d; Z: e. Lif (item j( [credibility] of turtle (i + 1)) != -1)
2 V0 A$ P0 h, G! F/ \8 F6 A9 h; {;;判断是否给本turtle的评价质量做出过评价的节点1 H' u1 |! i( ^9 J
[set note (note + item j ([credibility]of turtle (i + 1)))
" M0 ?5 T. k' q Y% L;;*(exp (-(people - 2)))/(people - 2))]
8 _7 m2 W. Q- C$ i/ O& wset k (k + 1)5 x4 s1 Z6 E4 O+ D* Q5 X1 A2 S
]% L& p4 Q1 G* B
set j (j + 1)9 L/ V3 \0 t$ a
]$ C+ u" W* c: c7 M
set note (note *(exp (- (1 / k)))/ k)
: ]. i3 a) {1 x" L* gset credibility-list (replace-item i credibility-list note)6 M2 O0 U* X* e1 G$ Y
set i (i + 1)
2 m) t4 m) l( \. U]
9 D; @2 k2 v8 m! |( cend% [+ E) I" d1 Y6 n7 w
! Q. `4 o% j* M6 |( ?% ]to update-global-reputation-list
% {! R. z) y1 ~4 s! D. ?( klet j 0* R* S j9 E0 T6 a. m
while[j < people]
+ u* I9 M# M* \/ t5 O[
! n' T* L C5 \5 v/ Rlet new 0, b# D0 J- |- P' a8 l# A' ?& E& t
;;暂存新的一个全局声誉" K- g' C0 E2 M5 y, W
let i 0, R$ Q+ e0 E* Y6 p# Z3 L0 G
let sum-money 0
& Q4 a, W0 r3 l8 t2 U9 elet credibility-money 04 }6 [$ L# l) G' c+ o! A
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( n0 {6 Y4 ?) _+ M8 [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- H% ]: c, s+ T0 n7 lset i (i + 1)
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let k 06 w& v+ B3 M" A0 F: k5 R6 l! I
let new1 0/ U X& o1 J% @9 X
while [k < people]" K$ Q* X3 K! D4 x {
[$ J- M3 J8 U" I9 c- a; a' P1 ~
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)) c, E+ h3 |4 A, w& c2 c
set k (k + 1)
7 l- N0 n7 [' o, ?& u( \]
- ~! s/ ?1 l4 P( b+ q8 @set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % P2 x1 I7 Q0 a3 |" E4 Z
set global-reputation-list (replace-item j global-reputation-list new)+ r' n' G! ?* k4 J7 J
set j (j + 1)
) B" o+ u+ d" I* W]
1 o' _; {: b/ b E- ~end
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1 s1 _- a: D# {) P
to get-color
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i0 K( } b8 @$ sset color blue( d- m C6 D K3 E
end0 W, {% ^+ P; H' E- I: T
2 w" D0 h5 E; ~5 |5 p7 x( pto poll-class3 c9 T: }5 R& N$ v# S3 B
end& e- i7 g4 ~3 _
- ~- _3 V4 t; v+ @0 V( u/ x
to setup-plot1
& k$ W) C1 @3 D B, b% _) E
% @2 n) S0 A: R( Wset-current-plot "Trends-of-Local-reputation"
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* Y+ O9 f+ q) Z# ?* _* u, P3 A$ nset-plot-x-range 0 xmax
) s. a n& p( r& b& Y
6 h; x9 i& m" j) @( l$ n3 Rset-plot-y-range 0.0 ymax
; ~: ~, B2 s( t; f4 Y8 send) n' ?6 O+ ?- f: G' e* m e% p
. F7 {1 J+ L" ]* m* Z% `to setup-plot2# J7 v: F3 [1 _3 o7 \
, N4 a: k+ f, \0 F+ @8 j- ~set-current-plot "Trends-of-global-reputation"- Q3 P2 O" a& g% W
' s( `6 l' c0 s! y" U9 a
set-plot-x-range 0 xmax
+ v" `1 }( r+ O3 F7 Y1 ~+ c) D( |2 l! U1 @
set-plot-y-range 0.0 ymax) \/ r' Z8 w7 f8 r* K* `
end: T. s9 q' w" M# j
' A9 w% {. R* c/ n* }+ W
to setup-plot35 D' s+ g* R( w# u7 r, m
9 q2 x% [: Y1 |, a. lset-current-plot "Trends-of-credibility"9 t( i* C4 U; J3 F: B$ t7 K
/ ~7 ~+ B6 z& U1 B* Y. k" [
set-plot-x-range 0 xmax |5 I0 f4 A) R9 ~5 e
9 x H7 N& m! v8 t' l4 L- W+ E6 j
set-plot-y-range 0.0 ymax
0 k+ u* H+ W* r u: G) k& l, e2 rend; y: H: N' q1 @. ^
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to do-plots
t, w; _7 m$ I, {1 ?( ^) Pset-current-plot "Trends-of-Local-reputation"& g2 ~- |. |6 W; X, n: i6 m$ P) e
set-current-plot-pen "Honest service"
- I1 X4 n4 i) Uend4 W+ y! ?- G9 I
& S4 V+ B& a M, r5 p! p[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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