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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
" Z2 y& o3 J* s! k5 Jglobals[! \3 X9 i$ w* [7 e
xmax ^/ ~5 X0 c& V9 N: B6 L; `+ P
ymax( U* C5 i9 k1 z# J) [& h
global-reputation-list) O2 I+ M1 g- T2 Q# b- @
& ` W- b: @6 p; `9 s6 i# T; S
;;每一个turtle的全局声誉都存在此LIST中
1 T/ d, ^; X& \' L% kcredibility-list+ \, I i, s# w/ x: p: D# A
;;每一个turtle的评价可信度
~% s6 |; a! d Zhonest-service' b7 P1 t6 h. D/ k! l3 I
unhonest-service
" `& s- @% I" C% m- |: yoscillation
2 _) ^7 s9 Q S( u. s$ d7 Krand-dynamic, O0 H2 R% j$ h
]$ j7 U9 t1 P( `& B% v
; L1 D" S0 E& k1 ^7 Vturtles-own[
3 ?8 A" G- r. I8 a) ~trade-record-all
7 ^" @0 x* A3 x;;a list of lists,由trade-record-one组成" p6 t$ J. X0 s0 g+ |% T5 l% ~
trade-record-one0 W* V# S6 G" t! j. R( v% 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; D) V* z$ N' u6 ?5 T8 b
2 {% C0 k7 j: S: M! E( ^& g8 P
;;[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]]- e/ x9 A& [1 l3 Q5 c( z7 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]
: g, L: M7 ?0 ^' m5 dcredibility-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" h% [- k8 I( m6 E. F4 m+ K: D
neighbor-total" S! I' e1 H: q3 B& k
;;记录该turtle的邻居节点的数目
$ k! m& r7 W/ t: xtrade-time7 J9 _& F% u: M0 I" f
;;当前发生交易的turtle的交易时间
" ^: c; F7 W! c/ zappraise-give
2 o3 j9 c8 W" o;;当前发生交易时给出的评价
; Q% J7 r3 r: u5 y! A- o8 H- iappraise-receive
. U8 S+ f$ c4 l, @( N) y4 D: _;;当前发生交易时收到的评价
+ H2 V' l& ]: Oappraise-time2 C2 x3 R; ~' t! h9 ]0 P/ l
;;当前发生交易时的评价时间1 ] k6 y4 E# {6 S" V7 D/ Z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 C1 B! E3 [. k( c( S
trade-times-total m0 I5 Z5 K/ {$ o4 N, g' q( F
;;与当前turtle的交易总次数6 E. `: y* y6 w; W! t' X
trade-money-total
5 c4 Z. h6 D) z8 \9 c;;与当前turtle的交易总金额
6 J& L d& y5 A( J3 ^1 V' ?local-reputation
% e3 B, N* T) f) h, w7 f. t3 Gglobal-reputation2 k, e5 m9 z* K, o- ~
credibility% M1 k5 O/ Q J3 y! T7 ]7 m; @
;;评价可信度,每次交易后都需要更新8 L9 f' M6 w& D, j3 j
credibility-all
1 }+ o/ c0 \1 l; W& u) f& v* 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
# N" }& F% K5 m) q. ?0 Z
) i0 {- Y+ ^ F! V' l' p, Y;;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
& l# j/ s( j" T" icredibility-one4 c# F+ W0 k; u% W* 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
$ m1 z; o0 D1 X* n3 n: Bglobal-proportion
- q2 w1 V h$ K( O% O& ?( ycustomer
! \+ s2 o7 @; F- f. Hcustomer-no; A# t0 o5 p3 u5 g3 n
trust-ok' W6 ~0 R- X) e
trade-record-one-len;;trade-record-one的长度3 H+ x2 U( u* M" I% f, ]) D4 h7 H& ]
]
% c0 z; R1 c( l
% H1 V! J2 Q# v& p6 [# P \, h;;setup procedure
# X. V+ j6 g0 a; D4 d$ `5 B0 y% `' T7 n7 a$ u
to setup' k I, _4 h! q2 }$ s5 W
: w* S& }; J! M: @ca
: }3 j) L; ]3 a0 a; P2 G; y% C. `0 P* s# F
initialize-settings0 v6 I: x5 x* J$ ^+ q
% k f7 n) v) Q$ ^' l# Pcrt people [setup-turtles]& I0 W8 m, j# ^: m
0 Y" Q+ v; F# d& v! o' p# Xreset-timer2 B2 ~: D# a M0 Q3 o
( S3 |7 o( ?) zpoll-class& a; [# m" b: o" t5 L
( v6 n& B7 h/ k! X& ]0 b" K
setup-plots, M1 |" X" r* c: X6 n% M+ K+ c* k
: |+ J1 t* P" |0 f& |5 L7 g" O6 ~' Pdo-plots& q0 e- k+ M3 \7 t! s
end/ N* B' [/ g, M6 p
1 C: J+ d" N& fto initialize-settings8 q- U! P9 U- ]! N; A* |
7 E5 S5 T1 H# K" eset global-reputation-list []6 P* V: L1 f9 a2 M0 R! d6 e
3 G0 M. S3 d5 ^% x3 b1 A. M) Nset credibility-list n-values people [0.5]
4 e' l& Z3 u. [: z* i# ?1 G! z2 j7 C( Z! ^
set honest-service 0
# N/ l7 n I$ y& N- T
5 I g: q! Q- S8 Hset unhonest-service 0
, R) o6 ~: c0 ^/ y
; b* X3 A9 R+ A* d, w3 U* Zset oscillation 09 x+ u* P2 S: i i: x( O) q
( k6 s) I7 S) I1 Z6 Sset rand-dynamic 04 z: S$ y; Z& L2 o$ \
end' a, g8 `4 \4 R% T* S2 l1 O; g
) e. g# F( _3 O
to setup-turtles 6 R J4 F: [8 ]% S& v) i# U
set shape "person"
+ _) M6 _9 s4 A3 A. G9 n/ y7 Ssetxy random-xcor random-ycor0 i. W9 s- f) F- u1 P) k
set trade-record-one []0 z" h) h, t6 z. `& H. R, h2 T
) ]2 E; W. @, G6 F1 |2 Iset trade-record-all n-values people [(list (? + 1) 0 0)] $ g8 s9 `$ a' A! w2 c/ Z0 v
! o3 p( Z6 B, ^9 d( S8 k
set trade-record-current []/ ]9 P9 y ~/ Q
set credibility-receive []' A3 C0 [( A, B/ W" x5 k
set local-reputation 0.56 N U" J% Z% s0 r
set neighbor-total 0
& M# `$ N) ?+ M" Kset trade-times-total 01 z: ^6 i$ C$ X
set trade-money-total 05 i8 Z+ a7 `& _+ i+ t
set customer nobody
" G* D5 F% x2 n) N4 J. y% I# y# [set credibility-all n-values people [creat-credibility]1 h* t/ i8 C) e) H! E
set credibility n-values people [-1]% s3 Z, x& y D' k4 O" R! J/ j
get-color, @5 n+ n g" |) D: ^
R! d8 m8 U8 y9 ]7 x& p& e1 Y
end
3 k( S6 T! X- R0 O; ? C/ {3 y
5 n* b# @( z/ e# G0 R; `" M$ Vto-report creat-credibility* ^7 A$ j! Z0 ], l
report n-values people [0.5]
/ d$ b" d+ b n" w# {. Bend. o% e' {6 F( W/ {8 K& a! P& Q( `: W O
( `8 _6 @( e; V: f+ fto setup-plots
6 h! _* {1 @) V# o" @2 e8 V% L! l3 G4 [1 S- H
set xmax 305 g2 K6 u+ z# B- S8 }) t: D
; `9 s# S7 o. o+ Z: y1 ?5 kset ymax 1.00 y5 ~4 u9 p2 ^
" l8 {4 h8 ?: k7 c; }! K) _
clear-all-plots8 s @" ^6 J; i5 u
5 F& L" _6 m& bsetup-plot1
; w8 T6 _( U! G T0 }5 q
4 I, U A! Y L4 H8 b1 |" |1 R4 f( J) Ksetup-plot2
( x# F% d$ c. X1 F
5 q* R1 z5 F' y) H, q7 ?% asetup-plot3& e9 W4 m$ r; p/ l/ {9 b
end6 M( \. O0 `: b: p8 _
6 H: D# W: n! P$ k
;;run time procedures
0 ]3 l' ^" c3 C; ~0 N7 R- Z
% w: y+ ~5 b- b, {+ E- R5 A4 S% Pto go
6 x# Z" I8 G& r9 S. \) t( p& H5 w8 J: U$ c
ask turtles [do-business]
& Q6 F+ b: r& D0 M, dend
/ D' ?8 E, H: X& Q3 b* n4 V b* h
to do-business & @+ l+ X; M9 q
' |" C, B% B$ Q1 X4 A8 @( G
8 m, x j5 S" {
rt random 360
F: i+ c0 ?& y% Q7 C' ^# r
D) P% }4 y1 M$ e2 g, yfd 13 J1 v3 }& N8 u& r
2 Z9 f2 l* D1 W4 E4 O# H
ifelse(other turtles-here != nobody)[
9 A( u8 Q0 }& [- O# X" c1 w; Q$ Z) A5 n$ q& V" ^' F1 U- A
set customer one-of other turtles-here
- K) v9 k' G9 r0 w, Y; X
5 {$ \2 B( {) h# p- U;; set [customer] of customer myself
* y' W+ @) U8 D4 Q2 Z N4 U
. X6 l+ i9 S9 y/ O5 oset [trade-record-one] of self item (([who] of customer) - 1)5 \- ]+ ?% S) V/ h) d7 V
[trade-record-all]of self
' q% `+ @% g4 o3 P/ Z. t) O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 s$ t Y6 t: l5 u1 M* O$ c, H6 D/ M
3 C' j: f) V7 g X
set [trade-record-one] of customer item (([who] of self) - 1)
r: M% v U0 ^[trade-record-all]of customer
( p- ^! o" {/ b, p' ^: k# T6 d% P2 a1 w* y& N
set [trade-record-one-len] of self length [trade-record-one] of self
3 ~/ z x7 Y6 {
; n' q, }6 I: p9 ?% ^& a( Nset trade-record-current( list (timer) (random money-upper-limit))
9 Y& O* J6 \8 d4 ^( R( i/ t+ e; ^6 a- K) f
ask self [do-trust]& h/ Y3 T7 j6 S0 h7 c2 f" {
;;先求i对j的信任度$ E" G& D0 J0 p; S1 @1 v
+ }, W) M5 Q+ E* m; X! H
if ([trust-ok] of self)# K) S2 B! M# a5 b! b
;;根据i对j的信任度来决定是否与j进行交易[) A/ a& l; O* @5 c' k. p
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( [) q' x* P% M
% [, i1 }0 e2 l$ G& y* j3 r; V) q r[ Z) B3 C0 c* l, j* U" b6 _
3 c# B: o7 `8 L4 S# J
do-trade9 x4 B* S0 G$ Q$ ^4 ~8 e8 N: Y* T
* }- b! E7 Z* B9 c
update-credibility-ijl# W4 Y h* [+ p# B0 m9 y9 g* @
0 q6 K- x0 |9 f: F2 k% F# \3 J" I: kupdate-credibility-list, S/ R$ p- o2 O5 w4 T/ w
$ F' a. {: G/ b. _
& f i5 r: O: K2 \update-global-reputation-list% } {# l9 @1 q1 A; m( c, j
' E* i$ T* U* K, q5 D( Bpoll-class
3 `9 y! g+ Q) ] ]5 a1 @* O$ Q G- J; H% m' I
get-color8 ^6 X: i0 o1 M' V5 ~4 B
/ L( J2 o) v2 d _$ W6 {
]]: q7 Q1 p% K d4 G. v) \; K( L
. E* i. _1 @1 k1 L1 \;;如果所得的信任度满足条件,则进行交易1 X B1 f/ n5 l( w( u5 A1 o
g, F& |8 v( o& O[7 D2 ] e- H0 ]
* f- S9 Q' G" t F# j
rt random 360
3 p( e; P7 E1 g7 I8 g3 Z& F" g- F
9 i9 g9 n3 ?6 g2 j5 v2 Hfd 1
5 D& m6 }6 n" g! @1 b- |: f7 f/ @' _! P( \" \' |# l: C& C
]
+ V4 P5 S' H5 q7 X/ B$ e5 g9 z$ j9 f u$ ~. B! N2 f+ J
end
0 N) U% Y) U m8 u3 d0 l( N+ H8 z! a' T/ M
to do-trust
5 G; q8 R7 E6 dset trust-ok False+ X6 l% S8 |8 Y8 x. F
( [+ W6 `1 g* d. q, L9 r
3 Y' I2 }! T( Z( l7 w6 P+ n
let max-trade-times 0
8 v& n0 X$ A& {$ ]# ?' Rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 c$ k! O7 |7 G: nlet max-trade-money 0! H+ I) B& Q/ B& p! K( }; b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ ?0 F9 v' |8 @: ~let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ G! _( s1 M( W4 k* f
/ ` F- W @2 p' J, g
4 q/ V0 R9 z9 p/ N. k) I! v+ Wget-global-proportion+ c r! y* }6 Q
let trust-value
+ m' G9 C+ y7 ?) C9 T+ g7 r8 [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)
& a' h) E& w7 p: p# `/ Kif(trust-value > trade-trust-value)
) f" C! d C; E3 _* {[set trust-ok true]
6 x. i# ^- n* P; j# {) O6 I5 q+ o9 zend9 O1 `3 ]$ F# R: b0 l. \, `3 p
3 D! l1 H' Z. {8 a5 z+ p+ m
to get-global-proportion
- C+ b- Q( `/ D) P% Fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): b- P/ u8 c& e. i# ]
[set global-proportion 0]
% o8 K! J( y8 [! ]% n[let i 0+ k$ C0 L' `+ `9 L7 O
let sum-money 0' X, t3 v4 b" M" t; \8 e4 y
while[ i < people]
1 X! n5 Z8 k4 [ J1 X" u[ ]9 U- r7 D9 l/ Y( {8 v5 @/ l
if( length (item i" q7 |9 Y, p7 \' I, T
[trade-record-all] of customer) > 3 )9 L/ J% `! J! }5 Q3 V4 L
[& W% u" j& A r7 P" L# c8 H, T
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 O: j6 p, I Y. F; K* x
]
' M1 h! r& @0 K6 V$ H]
& A# B$ l( y+ ]2 K( u4 m1 y9 klet j 0+ s! ~. i! o4 ?9 z. m% ]
let note 0 h) \7 ~! i1 l3 u" u" ?" o Q3 m: P
while[ j < people]- a* v# A4 C- \9 O+ T2 W& S) j$ c
[
) o; s# q1 ?: ]4 T8 w- r: a1 Sif( length (item i
. r' x) E0 d* n; n- ]+ g0 {[trade-record-all] of customer) > 3 )! I8 v' F, P* q- L3 _2 _0 T/ l
[
; N1 `% ~! B8 S; [! X0 q5 w7 A1 _$ v5 qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 m0 i( {. J9 y7 ~* B* i+ T[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 @: r; ~& [. `( @$ y& @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 ]& W8 G3 I5 \: N* A2 h7 S
]
$ o: {8 e0 J7 V]& b# h- H. i; `9 j
set global-proportion note
! K4 v, U2 _/ I0 D]
7 @9 `& X' z$ {, G9 S& xend
4 t9 G' ]- c, Y
/ U( X& C8 c B: j: v# uto do-trade* f& a' ]8 [; k8 `
;;这个过程实际上是给双方作出评价的过程& b8 @3 L1 S y5 |9 }- W: g# v6 k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
. n6 @3 b0 x; P8 ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' g- z6 c5 e2 d& n; Y. A/ U; Lset trade-record-current lput(timer) trade-record-current5 N X2 O9 P# I
;;评价时间
3 P( d. f8 u/ T \, T" Dask myself [
9 t' j. S) A: p0 E4 b/ }6 aupdate-local-reputation
P* O# m K( `! m( }* A. Kset trade-record-current lput([local-reputation] of myself) trade-record-current" ]4 }, K% S L! |; W( e8 `# r4 F
], R! E0 o) }+ s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ s& l. m) n$ _4 t
;;将此次交易的记录加入到trade-record-one中9 _! p( X* U# Z7 n {
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% s0 Q6 q/ L3 `6 x& Z! L, llet note (item 2 trade-record-current )
8 |3 j+ d0 d3 g4 M, kset trade-record-current
0 ~" ^, P) J+ v) O; m. `- h(replace-item 2 trade-record-current (item 3 trade-record-current))
- y; i/ e, |& V' t: H+ aset trade-record-current0 S! s4 R0 F4 K( o+ V
(replace-item 3 trade-record-current note)
" }5 o0 p- F3 ^5 i7 G1 S9 D* T3 S1 V3 `5 ]
3 J$ O. d0 t- Q# ?( b7 @
ask customer [# Z; ~8 q3 n; c
update-local-reputation+ P. ] O. ?- y
set trade-record-current
% O# H; H+ p6 \6 u) ?: s* G% \+ `(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' i x9 O0 U) x: d
]
' j& O; N4 V7 O7 w6 E. d& B* \' |! M$ z* L7 s
P6 K# u }- O" Z8 k5 n( J
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- q N1 a* v1 {& _
; e. p F( N9 R" O3 q% }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 u8 y: M j: H0 i6 F* U
;;将此次交易的记录加入到customer的trade-record-all中2 o+ W/ o3 {: ^: X- C9 j9 O
end. l1 [ N4 y) T C
; N% l5 u9 b0 Q2 v
to update-local-reputation+ W$ n2 Q4 u3 ^" J2 \# U
set [trade-record-one-len] of myself length [trade-record-one] of myself: x+ N0 e- b. B8 H
- g; L6 D0 |2 [% _. m$ h
& j$ B2 v# I9 j0 Z( Q;;if [trade-record-one-len] of myself > 3
. K) x& q# R- E. ?; c: f2 D, U$ hupdate-neighbor-total& _6 [1 _5 N2 H
;;更新邻居节点的数目,在此进行
2 I, L. @/ D! U7 n+ {let i 3
/ J: A7 R6 z) s1 z7 X; H4 I6 {2 alet sum-time 0
( }9 Q2 Z: J6 C% w5 jwhile[i < [trade-record-one-len] of myself]* n! A3 ~5 X6 P4 ?
[) ~* ^/ O% J" Y) G. M
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 R1 U; L) V9 R( `7 bset i
9 ` Z; m. k [5 l6 Y' p( i + 1)8 x4 ^3 O" t* Q
]! K& A0 ]; Z0 `$ O
let j 34 i4 {. I5 r8 k% ^0 a
let sum-money 0
( M7 i* F& @# Mwhile[j < [trade-record-one-len] of myself]7 a9 T- x4 A! q6 K; T( [+ p
[
* ^. c) J) q5 z/ ^ @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 w5 w# e& i6 z* \set j2 u' k/ a) L) Y* j7 `" }) i4 N
( j + 1)
7 }! @1 Z1 V0 S+ P0 H- Z]' R p$ s' K g" ^
let k 3! [- b9 ^% z: z( r. y% h9 m
let power 0
3 k/ T. v" \, l8 C m* Ylet local 00 P1 j5 L! z6 {; p- X+ R
while [k <[trade-record-one-len] of myself]
6 |2 H: b2 Y* j[' `. j; {0 u, o7 j& {1 D$ P
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)
' l3 p6 R# ~; aset k (k + 1): p- S, H) G; Y! w% g2 _8 F
]3 A7 t" ~: v5 z$ l/ C% i5 h9 f
set [local-reputation] of myself (local)
: o, {. u) K6 @/ M8 @0 o- nend# M$ f4 ]$ R# P. b; O% C
* t/ G$ s# e o6 p. \4 \1 t5 U* d
to update-neighbor-total$ V1 e- t# L- {
3 e# L6 O$ _- u$ } w6 Lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ v/ B% b; Z$ P$ `7 c4 k0 [
! U; G! n7 j3 x5 g8 O6 S3 ~
, D* c1 U1 s/ i9 t3 e4 I9 e+ z, Z
end
2 T* `. ]! K& w1 ?' ?& ~0 n8 }0 ^; C8 `- \; x- x' g
to update-credibility-ijl 4 @/ c2 K" [' V8 c+ b
, a/ [9 V1 U+ _;;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。. Q+ ]8 h+ m: b& _8 I" \
let l 0
- e- h a" a* Y1 K. y: vwhile[ l < people ]
$ p, I4 C+ p% R3 _6 P8 M! d;;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) k' a7 }& Z) h: [' V
[& D0 Z$ G6 H& y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
X8 H! L& b/ T) w+ h& F8 y0 c/ T1 h5 ]if (trade-record-one-j-l-len > 3)
; _' b" e2 Y3 C. c' F- _; \% T& z1 }[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-one7 y1 `, t7 v. ]8 e, Y' e
let i 38 B8 a x" q; [( i) G
let sum-time 04 k' u6 Q: ~# m/ }. M/ x
while[i < trade-record-one-len]
( |/ U. C2 E [( k5 c) [! C" l& k[
, d' `$ r% S6 O3 u, }8 c" d2 yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. C) ]! \3 L( M% r4 [5 uset i
7 V. h$ }. ]: s! c( i + 1)
3 r k; g. a9 q3 c1 `2 o]( I; i1 q: Y( P9 c! g
let credibility-i-j-l 0
( v# B, u, `% ?) ?; F;;i评价(j对jl的评价)9 c; k/ U, J: f+ K4 A
let j 3* f3 d% T- M* X
let k 4
; i! k8 ^( i/ _5 Ywhile[j < trade-record-one-len]8 v1 L$ s3 T7 Q& P: L& y2 o
[/ g2 l. U9 r2 \1 A
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9 B/ K- f% |( n. u
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)
$ N- y& s( [! h8 mset j+ o( a" c- Z- T) F) y9 g& ^& S
( j + 1)/ w* o0 s4 U5 @3 n# o* k
]
# h! G ~9 n1 _: v1 vset [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 ))4 [9 L1 ~' [6 t% O9 }
2 h" h& C( p* C/ [( r, Q v# P
8 I& U U# I" t& alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 B( [; N1 O: m4 T l1 v;;及时更新i对l的评价质量的评价
8 ] |* l Z. e6 D& U4 }/ Qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 b. \ U9 n$ l& f
set l (l + 1)' ^3 V* q6 B3 T" s
]
3 ? m+ @8 H6 U7 d' r# y) Uend- K! U3 o% d7 ~; T8 m
: e ~+ ?3 G0 h& y5 x8 g9 Wto update-credibility-list& A/ X( P1 g0 R2 ~# k# Q3 h
let i 0
P, T$ l7 R7 a( uwhile[i < people]( G2 R2 }2 w0 n) e) ]# {
[
6 }. r4 V( K4 H, P- K: T, Qlet j 0
% a8 [. k( f; s2 Elet note 0( R* a3 ~$ _4 v; R% m# t; s
let k 0
* |4 Z y/ o. {) n3 L! E;;计作出过评价的邻居节点的数目+ |1 ^0 J2 l; P) [. M; B# Q4 l
while[j < people]: A' E2 {; p* h- ?9 V
[
( O4 w; T+ H( Sif (item j( [credibility] of turtle (i + 1)) != -1)6 y. u( T: I. }# s! s) Q3 l
;;判断是否给本turtle的评价质量做出过评价的节点0 I1 {! E! X0 I8 ?" J8 g6 o' u1 T
[set note (note + item j ([credibility]of turtle (i + 1)))
& s0 w7 I1 y9 g7 N: H5 t2 A;;*(exp (-(people - 2)))/(people - 2))]
1 A6 c. x- c) W/ k0 s0 T3 {/ bset k (k + 1)* V& j4 b2 x0 E# ], B
]1 p: L; d+ f6 M, i
set j (j + 1). }/ D: e! |6 N; Q9 _ E
]3 I+ P7 Z+ O. B/ }! P" ?
set note (note *(exp (- (1 / k)))/ k)
+ O ^4 J1 O' v9 R6 k, }4 p6 iset credibility-list (replace-item i credibility-list note)
0 K3 A2 W' K6 |& A7 W. E1 Lset i (i + 1)& d$ i* [) \ P+ X% K- u, w
]
% b1 l7 Q) W' O) i8 { m- R" }: l7 j ]end
. F4 O/ j% G1 g/ p
* |0 Q- W1 w$ b$ \/ N! s' Qto update-global-reputation-list! r! P! I* q, S( p5 e
let j 0" ]/ A3 F; w2 G
while[j < people]
+ z8 [' ^8 @7 R$ r[
6 I# M# j) {2 C% y# h$ z. u8 a! `let new 0
. b5 p" D# H! S5 e: I( P;;暂存新的一个全局声誉
' G$ U/ g: I# mlet i 0
( a; h+ z% R7 Y: H4 }let sum-money 0! b2 W8 a8 f: ^5 V' c1 l% g* g- ]1 D
let credibility-money 0) ]3 {# W4 ^$ @7 K
while [i < people]+ `% M4 v0 x C: o: ~
[
5 x) n# _+ T6 \- F3 f0 |* l' bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 {3 y, x) H( C- X
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 s' P3 G/ L0 H! J3 V
set i (i + 1)" ?: P1 z- l% m; ^, w$ v1 P
]- D3 \) q$ _# ]; b' P
let k 0
# R+ Z P, R# U. a/ V G4 g8 j6 xlet new1 0" J& i$ k; y3 i3 ^ P, o( q: U# y
while [k < people]
/ I( ]! J5 S. N* s& l[6 i4 r! E# u4 g% G# q k' k
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)
) `9 p: H: S- f2 bset k (k + 1)& t2 U( I# T7 D! f
]2 u4 z2 c8 v" W3 n5 `6 I' G# |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 k: Q! D# P9 z* h* X p
set global-reputation-list (replace-item j global-reputation-list new)
" Z5 D4 B9 f0 p) y# Z4 `* c2 jset j (j + 1)
& X. Z5 _! m* W6 q- {]
( k1 U- \1 T2 z; c i" f; nend
$ U$ Y! z( U0 a$ ~
) r2 Q1 l4 m- A1 X4 V3 ~2 h1 E2 d( ]' Y& P" |# I1 F
! q% p3 B) v) F% ?) e. i$ B M$ o
to get-color
& V* _1 [- A1 c/ t4 n+ ]' g4 g" Q b
" t" u: `1 P, Z9 Vset color blue
* u% m1 H8 d* m" G mend P0 Z7 u6 [3 @/ R3 {
' Z! a }! c# c% j- c' Nto poll-class
6 K. ^$ p( h' U4 G% B7 ^0 Aend
2 }! `2 S% W8 ~2 S7 X8 D
2 e5 t1 Z/ u) u: \1 Jto setup-plot1
( X% K; X# v, u4 f0 s1 S$ F# U2 [0 E) b
set-current-plot "Trends-of-Local-reputation"
* z6 E5 Q3 _: v/ \) ?9 Q+ J/ s; Y+ z6 ^ v8 G( y( x
set-plot-x-range 0 xmax
0 D% r# m" Z' Q5 D- ^3 E. b
. T- U, r2 M# f# d0 W7 |4 S* Yset-plot-y-range 0.0 ymax
2 ]+ {2 B& a7 _1 Pend
; \( ~5 p1 T E% `0 _' H, b
6 J4 x) I1 a& ^% j5 O* A7 {$ fto setup-plot29 m2 H1 ?( C2 p7 l' _
* a. m* Y3 W3 r: T; T8 C
set-current-plot "Trends-of-global-reputation"2 q$ i, ?5 ?7 P" r3 J, m$ R
/ X4 t4 {4 H1 n1 N% s. b4 K2 nset-plot-x-range 0 xmax
8 B9 T4 L I4 g" p- y( u
- i% N+ v0 a% z Rset-plot-y-range 0.0 ymax" [ N6 f5 m" u3 l( v$ r- W8 I
end: M) M1 y* k4 y! `4 p' s
2 o4 u7 d# h6 m, Q2 wto setup-plot3
3 r) ] j0 Q# F; X
" o1 G5 @# l6 [; fset-current-plot "Trends-of-credibility"
& v7 m$ K# _" o9 l6 r4 x' A
+ ^: ~7 ~/ q! U4 C2 }set-plot-x-range 0 xmax6 N# S) C# F# \
$ |) V8 @! U9 b3 xset-plot-y-range 0.0 ymax
/ o: G6 l; Q4 p3 O' Fend
. ~3 E* n, K8 C0 h% J
6 u+ m9 {+ p, N( X0 Bto do-plots
: ~! J4 ^; d8 M* n( Y3 Oset-current-plot "Trends-of-Local-reputation"# l% ], p! ]; a
set-current-plot-pen "Honest service"! W+ R k1 h% u% ~, X6 ?9 o: D
end
t# y0 G" w# E& F/ `5 x! _& [% p. I% ]& `' T6 x$ ]9 x6 s" y/ p
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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