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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5 S' T$ z, G3 ^* B% b
globals[
+ p/ V( M. | m1 U4 [xmax0 ^3 U+ I, U* C0 S, w1 e# H
ymax* l8 k& N/ S+ F% m, Q J
global-reputation-list8 D7 x& |) q3 b4 b9 n/ {
0 |2 q. h2 X: f( Y' r" B; m, O;;每一个turtle的全局声誉都存在此LIST中$ `; n) [: ^# a5 T) n+ \4 y
credibility-list
( T& j6 @2 G& E$ g% w;;每一个turtle的评价可信度
3 w5 ~5 H y7 ]3 i9 n, q+ Whonest-service& e( Z" b& K, ^
unhonest-service
. d# D# n! Y* u" m9 Q% i% ^oscillation
7 m7 u3 g! n$ D$ F: s. u3 `rand-dynamic8 G- C& i, p+ O
]. z+ Z7 k( M' O/ t7 _
2 M* Y6 G5 k9 k. ]turtles-own[, z& \/ x; q' j5 K2 g! B& c
trade-record-all' \# v2 Z2 o |& t( w& v9 D
;;a list of lists,由trade-record-one组成
5 h3 n6 u7 d+ ] D! a6 ^( V# Htrade-record-one
+ s5 y3 a r E- y/ q+ f, J, \;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
. _+ I, W9 S2 A$ k5 N5 j' j/ _: |; u: o. D% S# m: Q6 R1 ~( F
;;[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]]1 v7 T! \4 t, `' O
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]
0 K# _' V, z' ?( ncredibility-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( m9 f# |+ l0 P
neighbor-total
/ N% x1 R. r3 {1 }% Z;;记录该turtle的邻居节点的数目' G: I' b9 C% _ \( n8 C- N# u
trade-time
" Z) H6 U/ M( x5 @/ `;;当前发生交易的turtle的交易时间
4 N' F/ q6 k1 eappraise-give# i3 n% T7 c: ]; i
;;当前发生交易时给出的评价2 F: m0 x5 \& B
appraise-receive1 O1 f) b0 x7 }1 X3 H2 o
;;当前发生交易时收到的评价& S* \' H5 X2 ?0 P
appraise-time
1 e& w3 R r7 ~: |: P0 R) c;;当前发生交易时的评价时间: p: V( w! I2 I# L+ J7 m( Z" N
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( I/ d2 C- D2 Z& ?, V, p& Vtrade-times-total
- }2 q! e- A) ~# h- N# l. F;;与当前turtle的交易总次数
% l9 o* d" ?0 x; Mtrade-money-total
+ f# h' p, W: O- J% I8 S) \;;与当前turtle的交易总金额! i" ?# n) p; h9 o
local-reputation/ j0 Z' |. C; N# D y
global-reputation& @) q3 E1 u) i$ D, b9 @3 O: l
credibility
' q7 R$ ^" d8 w- r6 E$ A6 `;;评价可信度,每次交易后都需要更新3 Y8 X6 l! k# Q$ X3 B+ E* }$ n
credibility-all
: ] q G4 p: j& E;;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0 k e1 c: Z4 X1 R( n3 K3 s
7 a/ U6 v. [3 o
;;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0.54 Y z% M" U- q* b; `3 N
credibility-one" {8 x1 h) y7 }/ ^! b; R
;;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: N1 T+ \. K2 n O; p
global-proportion3 ^; o0 T5 u' k
customer
7 ?! O# ]( X- r! W' i9 fcustomer-no' S: A7 M" p' Y- H
trust-ok
; @. s1 p( T3 W$ g/ Etrade-record-one-len;;trade-record-one的长度- U9 W( n. |5 O! M: a2 ?% x! V
]
1 P) d6 H, T1 A% \$ s2 r; q/ X4 E( Z3 V& M3 S6 g( X; |; r
;;setup procedure
% J7 V1 x& E. Q' U8 R% |2 `
, P" C" b) L4 l7 C3 A: v% @- Eto setup
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ca9 Y4 G- z5 N( _+ [$ w) z
( o$ X& ]: Q2 N c2 r' K' c2 M+ A$ F
initialize-settings3 z+ h/ `6 `9 a A6 `$ `( n
/ e! Z; x0 r& V. H+ f
crt people [setup-turtles]
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6 e& w( q: i2 E% breset-timer/ S4 @0 V4 r' J* e6 G
5 v. O5 C. K" Z4 |, A3 a; o
poll-class
+ A1 S# T3 v* o8 c' R0 L' Q5 `6 o# n9 b4 g8 o
setup-plots7 j) s, `8 D- v S
1 J, W1 M N ?3 Sdo-plots7 K1 g" h( y$ D; S5 L; S
end
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0 X$ I! C, o2 V6 B- Q' \: [2 Bto initialize-settings
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6 D6 M8 c# y/ V3 D1 J0 Sset global-reputation-list []
0 ^$ _! q9 T) r" ~4 O l6 h8 ^* R
( n* L l1 q3 @( j. p4 u7 d4 qset credibility-list n-values people [0.5]! v) Y; z1 f: w) X2 h! ]. w. y
. Y/ j3 U. @ Q+ @$ T: v+ E" K
set honest-service 0! r" Z" l y5 S8 Y9 ]4 z2 i
& j% `! V) B Jset unhonest-service 0
) M2 P0 n' Y0 d+ f r# P0 p U' m a, _# N% h9 k
set oscillation 05 `8 I5 `3 d# `" z' U
1 v- E1 U) Y& Y+ v5 l/ {set rand-dynamic 0
1 q( y! Z0 J9 c& q0 k' g* dend
5 c# P }0 x9 K$ M& X1 V
4 X2 Z* V& I7 _. L/ S5 oto setup-turtles 0 n- x& ?& O. l* V
set shape "person"
: }( R* ` E2 q6 d: z3 I; x [- Csetxy random-xcor random-ycor
5 z3 t, z/ v! Qset trade-record-one []" h2 I1 { Z2 V6 x$ d
1 B- L; y5 D* c: h6 V9 b
set trade-record-all n-values people [(list (? + 1) 0 0)]
7 n- ?0 W8 w+ @* B Z
! n3 {' a; r$ b! \" @4 E3 lset trade-record-current []
- j" }3 O, A& v- y0 H9 gset credibility-receive []
* ~5 j# ?" j1 o+ P3 r+ kset local-reputation 0.55 C; x6 n0 l& Y* B3 y9 `9 j( `' H3 _7 a
set neighbor-total 0
) ?+ T r# D7 W( dset trade-times-total 04 f2 C0 J7 e7 T8 e! }) L- @6 Q
set trade-money-total 0
' q/ K* f0 E% Dset customer nobody5 W$ S& ~$ r/ n/ r6 I
set credibility-all n-values people [creat-credibility]
: J# j2 h: ? {- ~* Qset credibility n-values people [-1]$ n( v r7 T9 c( n' G8 P' Q
get-color1 I! I8 o# y& v+ c- }
. O( }+ i; [) C' l$ m- v8 y3 j% h9 hend9 D3 O% l- |2 y7 C
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to-report creat-credibility
/ I [" g& @" r5 @- M$ [/ n& @/ P# nreport n-values people [0.5]6 e2 I# p2 z9 N$ R
end8 C4 v- h# X: {# b% J% t& O8 g
2 S% K6 [4 b. ~! y0 a' \4 `9 xto setup-plots- a3 [0 @, d' y7 |" p
' H! y' t0 E" r$ q4 R& Mset xmax 302 f- v0 w/ x; i9 D" Z# U
3 o( S5 }' j. [$ y/ B
set ymax 1.0
z8 F: ~ {# o; d6 p
) ~- R# F ~! o" ~- k, Z2 d: R1 Yclear-all-plots* f. n. i0 ~2 k0 b$ t8 i, x, I
5 e! i/ X ?# M* I- y7 ], K; ?1 W; asetup-plot1
" z# u* |! w- E2 p
" N7 p* }; G1 f: qsetup-plot2; h1 J7 O2 i( ], K& b) I
4 r; @1 ~: O& \1 n5 V7 P" f* D' Psetup-plot3
8 v2 E' \) J1 X7 q% r; N# q2 aend6 i* w9 \, [$ Y. E' i5 {* m2 I
; O. D5 v: U" `$ h6 Q- Z' T
;;run time procedures
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to go
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ask turtles [do-business]
5 F8 c) B9 Q1 B$ D# W2 }4 u) nend
% g# M- m; q, U7 z5 w9 |% V9 t9 n, P/ B; Y" k8 r4 ?" g
to do-business ( m$ ^6 E- z1 @% Z
" H- {4 I6 n/ M# w6 q8 V' n' A, y `! `4 J% r0 t1 i" K0 S# H
rt random 360$ s# y7 g; Z8 X$ T/ |
1 v# h N1 r3 h! cfd 1
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$ F z$ Y9 t+ ^/ |6 F/ x$ zifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself" S7 a# k" T6 i- o% m6 ~" k9 p
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set [trade-record-one] of self item (([who] of customer) - 1)
4 C6 t& M* F' L( s[trade-record-all]of self
! B' v6 E3 O4 p# V- e;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: c" R7 G4 Z: z- t( |
5 Q; }. _2 Z1 p( O+ l+ Xset [trade-record-one] of customer item (([who] of self) - 1)
* `; B# w$ G& V4 U- G[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))5 a( N1 T: l# ]# m
5 g, h" f; k" U( ?" I4 _ask self [do-trust]
! n) ^- m3 k$ ~! Q; t: E;;先求i对j的信任度* P8 L' R" c$ e: _& \0 F4 U
' x: O$ i% d& |' P0 rif ([trust-ok] of self)
2 R; `6 c( {8 T* ~ k4 J7 t;;根据i对j的信任度来决定是否与j进行交易[7 l: B5 u: P9 U+ h
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* \- _* R2 q1 ?; Q. y' l3 M
+ d" g& z, R+ O. h7 A[0 |" ]1 _0 g- P$ b
4 v* r2 f( A: n( _! qdo-trade& S Y. u& ?0 |/ J
' S% Y8 m6 }# A o$ [" Xupdate-credibility-ijl* o: t* V3 \ l& R: A
6 E5 y4 B5 _ U; X7 Cupdate-credibility-list! ]2 l& O+ U9 t/ Z' o: C% V' K
, A/ J" h/ l3 K7 j& Z* _7 G9 u1 ] R* d" D
update-global-reputation-list
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) ~' j. X9 R. e/ Q# q( Z1 W6 [/ Wpoll-class
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5 U* m9 E3 ]5 Y) ^# s# ]get-color3 z5 F) \) s- ?1 E
# K2 _) p: H0 i% k8 {; M]] |- K; K5 R8 \0 X
( ]- W% Y' v( S8 d7 m3 N
;;如果所得的信任度满足条件,则进行交易
$ Z$ s- S. ]2 P4 G- w" C1 ^& p; O1 m( U
[
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* j/ K' |' M: _8 n9 s7 Hrt random 3608 w# Z2 x5 f' s t
" o. l& q' t+ a0 G: x" c) Ufd 13 J& o7 R1 x) {* I
, J( Y* f. G, K8 h+ w]; a2 j1 ~- r: I: X9 {
5 _7 y! f) l/ e. p& eend
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+ i6 K; j' b5 @* D$ U" ito do-trust ' N- D4 ?5 D( y% A2 X$ w: t: [; o5 _
set trust-ok False' e) c8 q) z2 E0 Z+ _
s1 a& N" r/ Q& N, O) p
9 I R1 _; h% M+ K# O8 f2 M& Y3 b
let max-trade-times 0: @1 G2 q6 Q& ?0 s! e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 N' n. R/ {& Ilet max-trade-money 0, c9 b/ O' e8 ?& z: |1 k; Q: C
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. ^& b7 b Y T: t: l$ Y1 nlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ g( w4 R7 k& ~% O( p% w1 ]7 C# a" s5 y# Q
3 c0 {) B! A6 x. M
get-global-proportion9 [ q+ \+ |- R! j- F$ N" k% c, t
let trust-value
; J+ j7 Z8 v H) \& \5 H/ tlocal-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 V- X. I, A( G8 c! T2 yif(trust-value > trade-trust-value)" [1 x$ w# n( ^" S2 ]- t; Z
[set trust-ok true]
7 ]' z3 z) C$ {end
2 C" j8 T$ ~2 h: T4 y& _
3 ~6 H3 g. }5 S' c$ f( y" o; _to get-global-proportion
; a; b6 O0 k0 e8 Y! R' jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 p5 {+ P1 P, c6 o& }; _) [. T5 Z[set global-proportion 0]$ T* _( R- o& _+ T+ {
[let i 0( }1 R- W# Z: X+ S9 G8 u6 H
let sum-money 04 C/ J6 L. Y' F4 x
while[ i < people]9 i& t5 ^ p* v: B% B' X
[1 {, X8 {% t: @% l& O
if( length (item i
8 V+ n# ?2 B( j0 u- m% {# Q4 c; U[trade-record-all] of customer) > 3 )
/ R2 J# H6 K1 g; T! [6 c9 H5 [[8 X) I% \4 W/ T3 o! U/ Z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))" B ]! T- s% t! Q) |+ I8 ~% g; s/ G
]
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; o! X1 e2 q) ~0 g3 q& d9 c& p5 @0 t" tlet j 0
" C( B" k, N# Q' c2 N" q+ Q9 slet note 06 X! b0 e2 w) V( P) y) u" o
while[ j < people]1 v& G) l8 O4 p4 I
[
" M+ z4 t8 y( U; Lif( length (item i
7 b& }8 @3 P5 k" g; j* J2 [[trade-record-all] of customer) > 3 )1 I! L/ a1 _# b3 b0 N. t6 Y) m. k
[: ]- a! @; R% ^! d4 F+ r0 Q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( U, l$ ?) r3 O9 x/ f
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ {, Y8 \1 N Z. H6 e2 T[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ ?8 ]/ @( U9 P( c+ E8 C
]
4 P7 ^3 y6 R" e) ?$ t9 E/ J% W]9 j! _/ n, Q0 ~6 ^
set global-proportion note
6 I( H' E$ G& A. @]
$ E: r8 B! ~. H6 gend
7 Q& ?) ^8 B8 N& K; q2 K1 ]
7 U+ j0 ?0 D3 x* j6 M( Pto do-trade
" L3 [& U; q* l0 E+ u7 m;;这个过程实际上是给双方作出评价的过程
" H2 _( _; K! W: T+ Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 v! e9 Z' |0 n' H9 K h. N* Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ K" S$ V8 l+ u0 X& Aset trade-record-current lput(timer) trade-record-current' i; F3 j* n7 d: r! M2 [- @/ @
;;评价时间
; e3 A q" Y7 a/ Jask myself [
. d: F5 [0 S6 z, J7 A5 a5 Qupdate-local-reputation( T, B) A* P3 a
set trade-record-current lput([local-reputation] of myself) trade-record-current
, R( a% k7 B3 c2 S]. {2 D! O2 n( b z: i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: r( n! |: k6 _( N7 M( |0 y;;将此次交易的记录加入到trade-record-one中" c7 z& A& u' p0 b- Y/ O. I) a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) k! M: l# \' p. a; S( K
let note (item 2 trade-record-current )$ ]6 a+ t/ ]5 u/ Q% w& g
set trade-record-current/ {2 ~, }: Y3 b; f( t+ i
(replace-item 2 trade-record-current (item 3 trade-record-current))+ q- A/ z; M4 S& P4 L5 M H
set trade-record-current
& r1 B' \- d5 G* M. O(replace-item 3 trade-record-current note)
. ^2 o+ f6 q% F( W3 e- z3 h. s4 b0 a: Y& |/ X
+ d1 `4 l: `# s! uask customer [
p% n5 J' B& supdate-local-reputation
% o4 y7 y5 C, D; c8 ~set trade-record-current
$ b, { c5 n: o9 c% f1 F5 ^(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% X: G; E; p0 p]
5 w' G. j A1 E. Y5 \: j
1 J- B6 v% r4 L6 ?1 d J1 D2 d/ d$ f* U$ ^ |5 T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; K6 V$ a1 D0 }3 q9 q% \6 G* h; x( b
. H4 W, j" ?6 {$ Q/ Q+ zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, S+ Y' j! h k& ]6 w;;将此次交易的记录加入到customer的trade-record-all中' @( \8 K' C! o0 F& \- q& h; T: Y2 {
end
7 P* S* L$ P4 y( M- g* K6 v4 O
3 \# f9 Y% e, }4 M6 kto update-local-reputation# d% i! W. A% C
set [trade-record-one-len] of myself length [trade-record-one] of myself; a; G" N5 ?0 P
% s( J& |2 d4 {' i( d Z0 I0 |
1 i* }$ r9 q9 w2 v;;if [trade-record-one-len] of myself > 3
- i2 z( J$ F. U9 ~7 Nupdate-neighbor-total
: n C6 u1 y B' Y;;更新邻居节点的数目,在此进行
2 N+ _+ b: g5 N0 @. Dlet i 3! t5 q1 ~. q, D+ t* }" {# n2 Z; |9 i7 g
let sum-time 0
, U! c0 Q* _( M( T8 ]# U9 Twhile[i < [trade-record-one-len] of myself]: y! ?. A% ?- }
[( o4 v) K* L3 J' b7 q7 Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ P" I$ d1 o7 c) k; l# uset i
: D7 l. k: }1 y* @9 t4 N( i + 1)7 G- e. O: u: o- D1 `) |/ b
]
+ u$ c. K3 |7 [7 h7 h- n0 rlet j 3
% j6 ?3 ^* K# R% Blet sum-money 0
8 u* A# q8 J) ^. {( \, fwhile[j < [trade-record-one-len] of myself]3 |* O2 O! f8 n q. w+ i
[
) o/ z4 p' c* `: T. R% M3 w4 ^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)4 O- J" X1 ]6 I/ Z: l, U" k3 G, U
set j& k% u* b% R; F* g% y4 e
( j + 1) ^, `- D7 F* X
]
% I3 ~8 N4 J2 g( x+ y5 r! Ilet k 3& ] q. r. V% A+ A) V
let power 02 U1 m6 |% K# x" l4 p* E
let local 0
, _ f# f+ g% O2 V4 D$ ^' H% qwhile [k <[trade-record-one-len] of myself]
3 |- j0 A) x8 o$ k5 |[
@. s- `- h7 k0 A2 B* r- f eset 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) ' p5 r" M( J- d J7 g E- O
set k (k + 1)
( r& P$ o% d; p; P% a0 b]
5 T+ V! D& I7 z/ y* @0 `7 E9 e& D) ]set [local-reputation] of myself (local)7 Z) e8 H6 x1 P9 W& {) K
end2 O( {( c$ _# X. s/ w- n3 A
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to update-neighbor-total$ Q+ Z/ T) z* F, v) f! L) }% m8 C
3 T$ k- z3 M* L+ V2 l* A! pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. y% v! {: i! C& d& M- q
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end# {* |6 Q4 ^3 r/ _& _# a7 P& J3 H
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to update-credibility-ijl
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. c+ u! \8 B' E;;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。5 E- V2 v1 T; Z+ ~( g- \5 A- O
let l 01 N- j$ v- H. h( U
while[ l < people ]1 C! {: q f7 x
;;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
$ |$ q, I- g( {3 H q3 V( I[0 w/ F8 u. I- |0 p( {. e$ _
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( Q. {( y9 N( F6 P$ ~0 T6 H; Hif (trade-record-one-j-l-len > 3)
; \# R' x: G# k# T[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
0 E; h) ^+ u0 ?- I/ j6 klet i 3
6 l4 N* I I& Y9 hlet sum-time 0
0 q; m; K7 Q8 ~6 F4 P% N9 Hwhile[i < trade-record-one-len]
6 V$ i/ v* \ \) H( M[
& u' w! K- ]$ U2 ^set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" g. S, }$ Z) K
set i% s' b2 \% }8 `( k
( i + 1)0 K9 R% L6 f- A. C' V
]
( ], Y* n. ^; E+ s5 e& K3 Ulet credibility-i-j-l 0
$ P f2 e' {7 ^' n/ T+ h4 G;;i评价(j对jl的评价)
% d3 w1 W: ~2 w. j/ W1 g$ flet j 3
3 G4 ~8 F- ~4 B2 b' u( g. w) R9 ulet k 4# c& _" u$ e7 C: S- n1 P
while[j < trade-record-one-len]' W* Z6 p, u0 s3 V1 j1 A1 M
[4 q1 }0 `8 @) G( W# J) O; Q [ K
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
( e7 S( G. n- r- ` Y! |5 mset 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)
# L/ s" Q) m- L& v4 Mset j+ T$ G7 y/ k5 _
( j + 1)
* @; g0 C, T/ E2 L1 i* ]5 e- N] j9 M' M/ m% |4 z; x: I; q
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 )) a* v/ \, M! a) e5 C& [
" n& t* [) }$ g" E* l" @
! t* K. y& J9 k. v8 \+ c" \7 `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) c! x" S# e! j% J2 s
;;及时更新i对l的评价质量的评价
, l4 g8 u0 k1 h6 |. I/ c9 t' y. e0 y2 iset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) C8 F# U" l0 T3 e% P9 q$ f X
set l (l + 1)7 O. ^5 J) h) V6 \, C
]3 ~8 i6 u3 `$ g! L% b& S
end9 s+ v- b' n. H6 R) [4 i' y
% Q. E$ @3 _$ @0 _: T2 O* @
to update-credibility-list2 e( |' T3 k8 _% K7 t
let i 0
/ {" G3 w% i P% X- Wwhile[i < people]
' o7 n' s1 s, d$ e[; U5 Q& K" v- y
let j 0
) T: d& v0 q$ t/ p- v4 y/ ^let note 0
" l" c" m' v, [+ R# Qlet k 04 f/ e4 v+ ], Q# M) ^! J a
;;计作出过评价的邻居节点的数目
- X, U H& y6 X3 A, A- L: twhile[j < people]
5 U6 H0 U+ m" Z7 T7 M% y& X[
& L* n9 u. f, g# Eif (item j( [credibility] of turtle (i + 1)) != -1)
: v+ W3 ?; U& h j+ ?;;判断是否给本turtle的评价质量做出过评价的节点
5 `# C" _8 E0 y) o0 w[set note (note + item j ([credibility]of turtle (i + 1)))
( B/ f- G3 g0 ^4 q$ S0 y;;*(exp (-(people - 2)))/(people - 2))]4 i. N' w% h+ c$ M; k2 p7 @
set k (k + 1)
$ I) Y/ O5 z9 H2 v]% }, ?' u1 l9 {- F7 S
set j (j + 1)
1 ]- J( l7 G5 _( ]& @]
1 P9 [" z/ K' ]1 ?set note (note *(exp (- (1 / k)))/ k)
' v- n$ L- Z j0 C" r; w! Hset credibility-list (replace-item i credibility-list note)
2 l. T) O0 L- A( Cset i (i + 1) [0 u* f; W# a# g
]
! s, X$ ~. O3 U- j; Iend
. D0 L/ }9 j4 H. m& ]5 _2 S* j$ g+ m) C4 O
to update-global-reputation-list
8 c. e( [( \' k1 Dlet j 0
: i$ C8 i/ y" ~while[j < people]) r% |$ w5 W+ }1 a K
[, f; l. p0 ]+ W8 Y
let new 0
/ w- u: k2 R a. ~. z s;;暂存新的一个全局声誉$ G6 c5 ~* U9 z- d. h& N6 T8 ^- n8 @
let i 0: W0 h# d2 x; x+ a7 Q, M) R
let sum-money 0+ |4 @) [0 x/ b( j g
let credibility-money 01 i- \' r' K1 X9 z, K% R( _
while [i < people]
; ^# k1 w: F) O. ]2 z4 |' e, c[6 Q" _/ s( k) a4 P% v' z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ m1 i5 B; W" {1 B8 m
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* E2 v+ k# n5 @) ~2 i- o% z U- Rset i (i + 1)9 u0 ]; G' }; Z) n
]
& |* _# |. p; f- V4 s. _let k 01 _5 E4 T3 o+ Q6 E
let new1 0
$ A* s/ Q) `& k9 \; jwhile [k < people]
+ @5 M# e6 i6 B* T; N6 |; o! o[
; I$ B8 E1 B9 q) d! oset 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)5 f7 V& N& |, W" O- s
set k (k + 1)
/ T! s' z" G0 l( y% {] A R3 s. K: P1 r- i) R
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ M. v' X1 w& Z0 m! Yset global-reputation-list (replace-item j global-reputation-list new)
+ t+ ~1 C0 w/ v; zset j (j + 1)3 s1 D$ P) W k$ b
]
; r, O3 O# f6 O$ \6 t% n$ eend
6 S" j9 e6 Z0 x
% Q9 i3 E# g- [9 U. ?7 e/ K& ]2 D' d1 Z5 I E. L8 @' F
6 S/ `. e4 _: V6 D$ t( Tto get-color
; }: w# J; C1 C. |/ A# G, J
; s: A: q: B, N4 @: D' V* o tset color blue) t1 ^! T& ]: M1 i+ r6 F
end
6 L! Z( _9 ?, D# C7 j8 V& X' ]% ?& }" A p' k4 K& w; f
to poll-class
* s. K+ k# j, ]5 X0 B# mend2 |5 G" G/ C* m M" t
/ [) Y: |% v# @) ~" T( i |5 i
to setup-plot10 ^5 w. H) }/ E5 b5 O7 b. F
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set-current-plot "Trends-of-Local-reputation"! ?( D# J1 _" D* [8 c( L
. K$ @8 z3 [" ]# [2 Zset-plot-x-range 0 xmax' u; R6 f7 p: \$ ?* p# c) m
$ c( P. F# N) }4 Q
set-plot-y-range 0.0 ymax* W) ]! t* _" \) o/ P
end0 L X" M2 M% E6 f
1 s, E$ @! U' s% mto setup-plot2" m- ]" Y' ]& e7 {5 R4 C
" N; U# h5 D; W' u* h9 ]set-current-plot "Trends-of-global-reputation"8 s+ A+ `: W- q& _
" |2 X, n' @6 |9 U, wset-plot-x-range 0 xmax
% ~% E7 o% z- z! M" p, e
3 E h# B5 z9 ^1 _set-plot-y-range 0.0 ymax+ V5 }( z; S) E0 i8 C
end
% M5 S) C8 z7 B2 c7 b! w
5 N. F7 _8 C, V3 t7 F8 U1 @to setup-plot3
`' C$ a/ u! E* k
, P: c% d& y }5 }, Mset-current-plot "Trends-of-credibility"" T/ e. h5 I! o
$ P% s0 u, T4 p8 ]! ~0 ^7 f) _
set-plot-x-range 0 xmax
$ S! n' m& ?+ [& G. q& Z
4 k) z! o, D* N& Z" Xset-plot-y-range 0.0 ymax
1 c8 j( W4 H. b( hend
0 W/ i) r- j# r( s0 G3 M
& }/ x' F0 g8 Zto do-plots( w- y# P5 p' p! s' e
set-current-plot "Trends-of-Local-reputation"7 g& E; n$ U" h: g& r7 x( b. {
set-current-plot-pen "Honest service"
9 I. `4 H3 P' ^: y5 m& _end+ I1 l& [: b, F. C# P- s1 _+ G: w
& l2 a9 u3 T" M
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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