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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2 E0 _' l$ e9 w* J
globals[8 }$ C6 k- z1 I- e0 _, b7 V
xmax5 F" {/ d/ n/ `$ d: L; b
ymax9 b% o9 A3 b5 r
global-reputation-list5 q0 u& G9 I l$ D; \# ?: o
% G2 Z2 E/ i/ W1 {;;每一个turtle的全局声誉都存在此LIST中' P, [! S) U% A: y' S7 X' r
credibility-list" |( g; {! X3 i( r1 L6 i$ z
;;每一个turtle的评价可信度/ k; d) F1 \( o2 P7 ^
honest-service' m, v* }6 E: }6 B
unhonest-service4 Q1 r3 x# J# q- o8 Y
oscillation- z* j5 I1 I6 l8 x# w
rand-dynamic5 u% M0 q% C, ]2 Y: n% i" Z7 ?
]- V$ y2 O1 N3 u. O" V7 j A
1 ~/ p, L. ^. V
turtles-own[5 Q# T+ v) S9 M
trade-record-all, P5 @9 c+ D2 v
;;a list of lists,由trade-record-one组成8 F% `7 G, h1 K( m2 ~
trade-record-one
# x# [2 T. {4 h0 s9 `& {$ a;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录6 L. }6 u( J, d# b$ u1 ?% z5 Q" s
* w: U) Q; |& g& ];;[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]]9 f$ }1 E) L0 x5 K: f9 g y" q" H
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]9 u2 M5 k$ U! N9 U6 r
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" m1 i6 [& w- D C7 E m0 L
neighbor-total' n: C! N. b e1 Y1 U
;;记录该turtle的邻居节点的数目2 r' p3 E7 W1 O K
trade-time: H; {, Q5 E! u# a u8 T
;;当前发生交易的turtle的交易时间2 Y1 |1 o( t9 l/ C2 J. ?% j S
appraise-give- p0 Q0 f5 }2 J4 Z9 q. e
;;当前发生交易时给出的评价
5 x: N- E' E! g. I: Y/ Fappraise-receive! @* X$ l5 H3 j/ X
;;当前发生交易时收到的评价
+ Y0 w4 Y3 l7 d M8 Qappraise-time% M3 G s u1 M' d
;;当前发生交易时的评价时间; V9 i3 l3 `9 O, h q2 ^7 ?% k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉& C5 z p3 M% _3 l
trade-times-total
' l* l% t% i" m;;与当前turtle的交易总次数% o1 f+ P/ t2 K6 o$ X
trade-money-total8 c' z& F6 ^9 ]- d: D- V0 v
;;与当前turtle的交易总金额' t0 w# E3 o8 ?: ?1 `
local-reputation% c" q5 M- G0 ]8 v1 C
global-reputation
' W0 ^, O) A. s! ^% Pcredibility
( Q& }, r7 }" J5 `;;评价可信度,每次交易后都需要更新
. R8 Q, U$ P- z0 ]" S% B. D8 _$ p* P, tcredibility-all. g. K% p7 N/ Q) r P% `/ p1 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
, J2 z+ h; r: J9 S( c) f
8 ^. ^# r2 I8 {& 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+ v+ j/ a. a8 ]9 N& ]: S5 Q! X
credibility-one
! o; q/ O) J, N" u4 }" O;;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
2 O' M6 @; d; u% R s( E: Mglobal-proportion
S1 v0 P0 Y! Z/ o; f$ Tcustomer
3 T& y3 S& I- u* a7 Scustomer-no
5 z9 k! K+ m4 [8 R$ Rtrust-ok6 u$ ^3 v7 x6 f1 d0 [: O
trade-record-one-len;;trade-record-one的长度+ ^/ y8 ^+ I% y/ w! M% J
]
u+ m& z8 M5 ^' @4 X& F5 e8 r6 y
;;setup procedure
3 N' l3 {6 d) F9 r$ r/ R) N* s0 h8 ^ b
to setup- j( s5 ^8 u- {: |
4 w. `1 T4 e6 p2 j& Sca" w) T/ N2 G) i! j/ s
& G* Z0 l/ Z. ?0 u' kinitialize-settings% J' U! i, q( t. c% V6 L4 ]/ Y; d
: n( k+ n' C4 j; V, U4 N- O5 |8 ucrt people [setup-turtles]2 ~( ^2 Q0 U2 }/ A3 r
) h+ y: [3 |) \) r9 oreset-timer, I; I: F; @8 `& B; K
0 Q: R) K6 d; U0 Dpoll-class
/ Y" c& n+ ]7 g; R
0 Z$ O1 v% C* Y0 K9 c7 f' bsetup-plots j2 g& n/ X$ n8 m# t6 }! I- N; V; _
* G. L- \8 Y: ~do-plots
: |8 k `% E! h; f2 ~end; n% @( l, m9 e/ W4 E* [/ u. n' l
6 x ] n4 a+ a" dto initialize-settings
% l& Y O1 ]0 L {% u' S6 }
+ v7 @/ Z9 F* l! E' z8 J9 }; ^set global-reputation-list []# K4 q7 G# w1 Y5 p( S) u$ W
+ ^+ V5 _. g' U5 s; }9 rset credibility-list n-values people [0.5]
) c+ b- A6 V- u. a0 G7 e" h* f. B! h3 h! ?; |" b
set honest-service 0/ m' T7 x3 a& E6 x+ x
1 O8 G0 v: T, x( p, j
set unhonest-service 0
; v8 ]4 H: u+ Z
: p+ u, q1 V3 O( p" q" O F( M. {set oscillation 0
( q) B% s& s; t/ s+ {, ^6 z) L! k+ W& P5 _) c% f2 u
set rand-dynamic 06 b; `6 w" O* u. f: q% {
end
4 v ~/ _3 ?) H0 ^) T8 y c" f; |9 ^% v* I4 k: `% @) P, Y' q
to setup-turtles 9 M" L1 Y' T( j8 y1 U
set shape "person"
$ ?5 M! U! I7 m1 D% s {setxy random-xcor random-ycor
1 o/ f) n5 w2 @7 L7 e8 jset trade-record-one []
- p% ~) g0 J; ]+ U. u- Y
$ u6 K* ~7 I: @- X- ]: ^6 D% Wset trade-record-all n-values people [(list (? + 1) 0 0)] ; q& V8 F4 N" f( |" `% p2 j
( F) p+ k0 U* Q+ Qset trade-record-current []1 ^0 g! `; P( _: k$ Q; f, o4 P
set credibility-receive []
. }; G; t9 ~0 y' M* R% ~) T% n, Kset local-reputation 0.5
r% P- J& r$ S# y, q! {! xset neighbor-total 0
- l' R# L9 E0 Z& {+ D" k' f) q1 Vset trade-times-total 0# y/ x1 Q6 Z' k0 Q+ u$ l
set trade-money-total 0
) p$ h- `# d4 u4 P+ }set customer nobody- i! S q' L0 u3 Y! d# w7 c+ H7 q
set credibility-all n-values people [creat-credibility]+ w: r7 W: S4 F, ]$ [/ D
set credibility n-values people [-1]
/ r% a! C3 r* @# X0 ^get-color7 C( l9 I- A5 R5 D
5 j6 N7 o7 \* G
end$ C/ H I/ N2 I# X6 h3 q: ^1 @4 @: e6 k
. G0 K% H( J8 h1 t, o5 hto-report creat-credibility& y, V4 S7 @' X
report n-values people [0.5]! y5 v, R3 e5 x. U: B
end% n- O1 Q) W) C/ {3 H# F
2 G3 ?4 o) o; B- S% A2 V+ {to setup-plots2 T+ E+ D, ]1 l+ y0 g \: [
, y6 Z8 N' H% R3 ?- I/ A V8 c* {set xmax 304 ]/ Z8 U7 F1 |7 D5 S
9 ]4 n5 Q) u$ A) V/ r3 i1 a3 e9 a
set ymax 1.0
1 t3 o& v' n( a5 p P3 \4 O7 f% Q8 Q3 V% J* K+ ^! j
clear-all-plots$ i( p9 ~8 T: K: W5 x6 D: D: N
2 F. |" ]3 n1 t9 [: b6 t \
setup-plot13 d7 Z( ]6 Y6 Z6 C5 E3 Y& k. K
g! ~* ^. L0 o. l
setup-plot2
8 G# S' m! b; h/ \' `: I. _0 F$ o/ ?! k) k" @2 D( Z
setup-plot3
5 b7 g" t Q/ k) D0 w* l2 X; gend. J+ r; r% ~, n' v$ h7 O
. u; v; ~; o. L
;;run time procedures, \3 `9 S/ t* f7 ~6 W0 a
4 ]9 T6 P. w7 i+ q; l) \1 z4 e+ v" W
to go& i, l$ d, E: A/ Z2 U
+ m1 X {8 n5 Z, p9 J" F, eask turtles [do-business]% `8 l1 v/ \. I" o% f5 @
end
1 d7 Y* o% E& v# J
2 t/ S; s2 T z1 x2 bto do-business n( f/ q+ c: c$ i2 Y e: ?
F- e7 \) \9 X4 z0 r% f
. [2 W2 e3 ]! {& Y8 c
rt random 3600 G; W/ M8 ^! C8 f& x$ h% w: H3 Z7 f! K
" C) ?+ f2 F. Y! x! h( X7 Q) @6 `4 Z6 t
fd 1
6 w- s1 |$ o% X5 C) ]$ H( G! f" H( m
ifelse(other turtles-here != nobody)[6 O! T& }+ H7 m' {9 v d( R% C
0 _: p8 z$ j5 Z
set customer one-of other turtles-here
; a* t6 K% ?; n5 y" Z @
- q; u8 @/ |. A1 a% O$ V) p: I l;; set [customer] of customer myself6 v- X7 p6 \9 k+ y
% w Q. B' k, q" d- P+ P& pset [trade-record-one] of self item (([who] of customer) - 1)
- u4 z# [; s1 q4 {0 U3 g* Q9 {% y[trade-record-all]of self6 P( t! T) }+ i) e
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& D+ C z6 D+ g$ s0 \& |% `6 A; q6 F5 p( b0 v
set [trade-record-one] of customer item (([who] of self) - 1)+ m+ C$ L! p, W0 G1 M/ F) u
[trade-record-all]of customer
* ~& r- W0 @/ O" K# \" B6 C
- ~% E9 w$ @( I3 dset [trade-record-one-len] of self length [trade-record-one] of self
3 _) d. d) q& A8 t0 G x' O8 m- g4 c, l" W
set trade-record-current( list (timer) (random money-upper-limit))* n, V* \* i$ N$ \
! k6 X0 l% K2 y2 k) c- x
ask self [do-trust], o% @& E# ^/ K; k2 o3 Y
;;先求i对j的信任度
; M- }/ X( w; l, s5 R9 G
' }; A2 Z- x3 r; @' [* o" f# E# tif ([trust-ok] of self)
' i, j. I" ~7 {( q;;根据i对j的信任度来决定是否与j进行交易[
5 K* }5 s$ |( I" O& n$ g/ l% Aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 w4 m4 w: S4 r3 j) A- J
4 R: D' `5 t" _& \[
- F# q' [' ^, k3 O: w6 O2 B' t# M& Z. w( T2 B4 X0 p
do-trade
; p* q8 y: f0 w) ]/ v9 d+ t8 E& X( G5 y0 x
update-credibility-ijl4 D4 @1 K( [, o* s# E1 }5 R
! C0 n! M0 u: z1 E3 U/ l* tupdate-credibility-list/ A" f9 i4 @! q6 g- Q/ @! T3 O
; i* p& w2 n7 H) ~3 h
8 I' s6 ~( o i7 H( ~6 s r& ~% @
update-global-reputation-list. k2 R+ N! |& q) A6 C' V4 A
0 Y w7 g$ H3 m) c. ]poll-class; j: q( [" Y! \& a
: j5 B; x+ H$ i
get-color* O1 S' j+ C3 Z/ x8 Q
. {9 @3 e# v u
]]
# A7 }5 r" H. A4 b/ @& P |) D
* l' u3 T, s" c7 Y. z4 f- N' d;;如果所得的信任度满足条件,则进行交易) N7 h' Z4 I; N* U
! A8 S* d% \# d% i9 @& s0 P8 J
[. F" O0 u4 J5 @8 i
4 ?6 s, Q0 Q+ k( C6 b4 y# v7 S
rt random 360& b2 Z x8 r( y* L
E7 `1 h+ ?7 h T, h: bfd 1
0 e3 o1 h/ v& M S# ^1 R( D% P. k" l: L( H5 Z- B7 \
]
, [) j [; ?4 L8 o* W! |7 @$ E) _% g) X
end
# o7 k8 e5 J1 P2 C$ D' G" x8 [0 X( I/ D& U) [
to do-trust . ]. L* I2 i6 k0 P6 S; `+ U
set trust-ok False9 M% t0 X, ^) M# D
( Q4 T% ^4 j/ S# ]" b* n( @
* b7 b" v3 }/ C2 e! d0 x3 W! [let max-trade-times 0/ u+ l. |4 Q4 X, B7 @/ h# ?
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 _; J5 [9 |2 E9 p
let max-trade-money 04 K6 A$ K4 y+ T
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& I" y* K* U6 ? @% ^: N4 ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 h1 Z+ A+ x* A0 {
9 c9 [6 z5 }/ l2 S$ e. l
! b* l2 @, x& U9 I- Zget-global-proportion+ W( f+ C- o3 E% [3 w% v+ v
let trust-value
5 _; h; `' |3 r4 Hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
5 r+ z! @/ _; @- K& Z# s$ Tif(trust-value > trade-trust-value)
' A L( G) g; U) X, Q[set trust-ok true]0 O- _# s1 i. y0 x2 L
end' L$ o+ c; n3 d" o! T' G
: n7 C- ` O+ Y
to get-global-proportion
- S: S7 x M; V9 K$ p6 b% `ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 B% h6 a2 E/ b9 z+ l5 U[set global-proportion 0]0 j1 P3 ]( C2 x/ ^7 A
[let i 0
* D, A! T. v/ w6 dlet sum-money 0" s# N1 k; p9 M- u6 e2 f }/ [
while[ i < people]
4 v! U( M% d5 e7 e7 m/ z- q[ ?: N! e# ?, B& g7 D
if( length (item i
/ s9 Y; A1 T. s' G; }0 C9 u[trade-record-all] of customer) > 3 )( i" O9 Y c& X; `. r. a& K5 P
[
& D# q2 Q4 j+ _$ i; T1 E. ^1 O- gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 r0 N" ~2 W0 y& \9 N, T0 q
]! l& @! V* F8 y% O7 O0 m ]' d
]5 y8 y, l) A8 a" I! b! K' G$ z( Z
let j 0' ?! `/ U/ H g3 j) a/ h" e+ c
let note 0
; w( l# \( R) R1 Z G0 ]while[ j < people]
Z7 H6 Q& d- U- b0 F+ T4 i" m[
" i8 }6 x1 ^8 @3 C- U5 Kif( length (item i7 U: c# u; v; Q/ j6 U
[trade-record-all] of customer) > 3 )4 x- Z! P% n9 { l8 n) N' ]
[
2 a) K d4 h/ V! t6 zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 n( I. F% o: b[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ _8 A. S& V* Z/ Y q- }; q$ [. s" q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# D" P4 ]. R9 Z% C1 D6 X' u3 r' i" E
]1 `9 J2 U- K2 N5 [0 V
]% b3 E- O4 e& _$ B8 M* H2 t, ^& |
set global-proportion note
2 H3 X( J3 {; |/ F: w; [' J, D]( p8 I2 y- } N3 b4 g
end) K8 g0 ^' t% U( n, Q |
( w8 ` k2 S9 w6 v* [to do-trade
) \1 v3 n9 v1 o, c! p! g M0 |" F;;这个过程实际上是给双方作出评价的过程5 H1 Z5 N4 O. @9 y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 l7 Q; o8 q, g- ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: ^9 F# T) D: y" K( M' Q9 S% Z
set trade-record-current lput(timer) trade-record-current9 z4 n3 l5 L( {$ I: s
;;评价时间, A7 h+ e! y5 S% {/ y" X3 F8 k( M# n
ask myself [7 w. D/ z6 j/ s4 g3 I
update-local-reputation
; ]8 C9 h0 R) r* `1 T* Dset trade-record-current lput([local-reputation] of myself) trade-record-current
' D8 q O' _6 ]8 k7 a/ i. X+ K5 p]4 A' i4 @% U& c z' [; K
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- o/ N8 ]1 }* }( l/ ^;;将此次交易的记录加入到trade-record-one中
9 U" a4 X) u. y* B9 b; h( y, kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" }" s" Q! Y; p; S% j* G6 T# ?
let note (item 2 trade-record-current )
8 h+ R3 l! r0 P2 e! i4 Yset trade-record-current
, i a7 r. |. T0 ~& b, c(replace-item 2 trade-record-current (item 3 trade-record-current))/ X8 `4 f! F$ ?( G1 w( B
set trade-record-current5 e# K% U- }9 K9 b
(replace-item 3 trade-record-current note)) ]/ T$ R- l( [
; S' e2 N* K& L& C' u) e
7 x% j$ B. T3 C. G! v5 X; ~
ask customer [
6 N& K1 o$ }) Q k0 fupdate-local-reputation8 t& z# Y; @3 s. q3 v
set trade-record-current: p) {; v# \6 Z9 A6 g6 S: L8 \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ) v( _4 R& Q J5 I; h9 A
]
+ i# v( \4 T( ~! V V5 b; O0 ^+ K5 `8 W% P" V- k6 f j
" t6 ~1 m: k( |: L! w' f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' k ?9 t2 ^) d& \
* `' ~8 u/ c4 b/ k/ t) Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 f/ S; V! b3 ~+ ]- T;;将此次交易的记录加入到customer的trade-record-all中8 E5 k4 M9 g( S) L! X; ~/ K
end- R- L5 k+ P7 F4 r9 M
+ O0 l8 O9 H6 i$ B2 }+ B5 ^
to update-local-reputation
/ z9 v( e- @. p7 B8 @4 eset [trade-record-one-len] of myself length [trade-record-one] of myself0 ?# {5 o' q Q
- _5 i* F4 M3 d9 V( I8 U8 R3 j3 ]
- V. ]9 u, B# B( x+ t0 i;;if [trade-record-one-len] of myself > 3 " _# O1 F/ Y) e4 L% w, o
update-neighbor-total
6 Z, p) g( b; L/ V7 F( R2 };;更新邻居节点的数目,在此进行" }1 b' Z7 ]% F- b3 S
let i 3
- g$ D; u( l- ^let sum-time 00 N! @+ W( u! g- u. ]+ L" V
while[i < [trade-record-one-len] of myself]& F Q6 V7 \( P3 Z8 F/ g5 q
[4 [& D2 E! V+ L1 r( D
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): r+ V g* E. g9 }2 x; t1 l* V
set i7 c, |, Z' \/ q$ |- ~9 T
( i + 1)9 b: s+ w3 x" ?$ y; B: ^. i4 P
]- K5 {0 R7 j2 |. R& O* V
let j 3
2 P+ ^* s9 r9 A9 }6 D3 {# wlet sum-money 05 G5 ~3 a0 }0 V
while[j < [trade-record-one-len] of myself]
& ^# U! w* C2 i7 `2 U[
$ k$ P# _; i. g9 G0 z; O6 Mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 [, [$ D+ z# M
set j
3 b* f1 ^+ W7 [& K- Z C( j + 1)
# U7 N6 p- ^ m7 \7 h! H9 Z]: D1 ]$ g. g1 \$ Y6 s* g5 C4 e
let k 3
4 }( F# n6 M: B- [: n! olet power 0
+ S& S: Z* G: n* C5 M' ], F+ H+ Hlet local 0. e$ V. M" l( \$ }8 R( ^
while [k <[trade-record-one-len] of myself]
& N5 ?3 m/ s `9 @) d- @1 O[: l9 F9 A0 Q* }0 D) l9 ~2 Z" @
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)
- ~+ N3 l+ \% U/ d3 C+ n: s$ zset k (k + 1)& D! E' d+ H, V" K( ?
], {2 p6 @8 o# j# w: V
set [local-reputation] of myself (local). T8 t) i' r4 ?! I& ~
end
' b% u1 m: T7 \# @ D' [' u9 c5 e8 U1 Q
to update-neighbor-total8 Z/ v m: q8 X7 `8 G
+ S9 t" L( ^+ [2 b8 y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 G# D: N4 l5 ^+ `) _, J
$ L) l. j* r; Y. {. N) B: z# h3 F: O3 |% d' V& q
end* ^3 K* {' w; W3 v2 V* w
. Q; t, Y! D4 g: m6 ?5 s+ _to update-credibility-ijl 9 f t6 R; z; _4 \4 V4 f1 m C R' O
- C, X" l& |8 @5 `- A- `: j3 Q
;;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。* A/ ]" M1 ]; R, n1 U( h% }! V5 f9 w
let l 0
( }1 ]- ]! X$ |% b8 qwhile[ l < people ]
! Z# U0 ^* j8 N. o+ v3 _;;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
. D/ U- t9 d+ N: G, O9 Y5 z[
) Q# _) b$ L7 m* H4 p+ o- Q1 H# Mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& T& I2 J* {, [" [+ Kif (trade-record-one-j-l-len > 3)
0 j% ` S9 t; Q0 @& c6 f* ?[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-one6 Q% {, D7 o# }% r9 N
let i 3% u( Z ^: u$ L) ^: m
let sum-time 0
j( `, o, _1 l2 g& Fwhile[i < trade-record-one-len]. g5 `. T+ \2 P$ x& d
[1 W9 Z- @0 @$ \! j
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 v7 B+ e6 i% Eset i
( \# W/ t) ]4 o: }5 `: P! f( i + 1)9 ]7 f: n8 B' `$ I
]
3 P% N5 n% X1 Y6 `* k/ x2 Blet credibility-i-j-l 0( C: @( g0 d" ] \
;;i评价(j对jl的评价)( h3 u* Z& W, {/ {: v+ H% K7 J
let j 3' g$ x7 w. H4 ?; m7 h$ O6 I
let k 46 L; z. P; b$ _+ }( q# S, _) F/ c
while[j < trade-record-one-len]
# A4 \; k4 [3 t- Z& l4 y[3 O# o" { f7 k; f( G. o% 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1 A% @6 G: D$ p) _' M. y3 C
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)
, O( v* z2 T# K2 Q" gset j
6 A. D' }, v v' O& c% g( j + 1)9 y1 j# R @- ^$ s. C
] g' f0 K0 W! S% S) k" J9 e, t4 U# l* P; X/ o
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 )). r. P! X( @! h# Z/ o1 h5 h" a, R4 e
, _+ B; W8 D7 S6 v4 Q7 e6 u9 @5 C
2 F O: f X( w$ C xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- D" [5 P" d4 {& u7 P. H/ X* v; u. M
;;及时更新i对l的评价质量的评价
+ |9 K9 L# f' g: kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# v" O& m \6 G Y8 p) @, p Xset l (l + 1)& S5 O/ U! y4 n2 ^& o! g4 Z
]
0 W: Q; W% L# p; o. r9 |end+ B* k% ]0 Z" u. l& ~/ S. X* E
$ F4 ?+ q7 I! p5 d/ k
to update-credibility-list
# N5 f% I1 ^ m+ R/ _* r7 P: P: wlet i 0) l$ x' I6 P0 y* _3 d
while[i < people]
6 f% U. h9 O+ {& C% N[) o- s; ^$ _# E
let j 0
. W& T" ^* d8 t4 | X4 V( Vlet note 0) B9 y; B8 F! n# _
let k 0
1 `3 J+ z" l# L2 l# h;;计作出过评价的邻居节点的数目
. L4 i* V( w9 e! ]$ r" swhile[j < people]
. S! B4 f% I$ d2 i2 u[) V+ u6 n. |1 n& _' H( D$ [+ M: K
if (item j( [credibility] of turtle (i + 1)) != -1)' K2 Q6 k4 B- r6 T, G! |3 D& K
;;判断是否给本turtle的评价质量做出过评价的节点5 B6 S$ A/ c3 V3 m W
[set note (note + item j ([credibility]of turtle (i + 1)))# F5 X6 X. X* x" x, M& G
;;*(exp (-(people - 2)))/(people - 2))]" j" a. t3 I6 [/ i
set k (k + 1)4 {7 g- k* {" x6 z3 y4 ~7 t( a t
]
4 h- K4 R# x" Z9 x; `set j (j + 1), l) ^ _% f$ Y) o! }$ \
]
& h y/ B J3 y8 f/ m# rset note (note *(exp (- (1 / k)))/ k)4 `) W* ]7 W% B) S8 z' ~/ }
set credibility-list (replace-item i credibility-list note)
$ f5 x6 A! _; Dset i (i + 1)- H6 B8 a/ |) Z
]
q2 M7 d! H( ~end' ]' K `" V, T2 G: y X
8 v/ d7 w) O5 B1 v1 Y; Rto update-global-reputation-list
6 l2 u7 B5 A# Klet j 0
& P4 O) q$ |. J5 Qwhile[j < people]
! ~: ^" P/ x) r3 w6 Y[7 j$ {9 B4 ?' d' m3 g( b* o
let new 0
* ?3 `2 ?( K- F! v3 M;;暂存新的一个全局声誉
9 u( i9 M& } [5 m& @$ Dlet i 0
( o% ^3 h' N5 f3 a/ F! k! ~ ylet sum-money 00 @0 ~( w3 A, }( P, i
let credibility-money 0) }2 e5 r, P% h( {3 u
while [i < people]
; \4 n8 W% {- M, Z" ]3 l' x% _[
. \, g5 w, `, U' Dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' o! }9 Q" h# \8 r9 Y) ^+ [; k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 b8 H3 ^, k" f& J/ f
set i (i + 1)
$ _6 L8 U2 X! m/ v; _]6 U! B- F( A; N" A8 s3 `6 U* s0 x$ v
let k 00 j( w3 y2 l1 B2 K0 P6 t( E
let new1 0
: Q" \0 ~5 P& y, Gwhile [k < people]
/ T; u$ d' u* [) | s( U) ~% a[
5 y* {6 A4 D+ n7 t3 A/ W; tset 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)
- j, V0 @# S5 G* yset k (k + 1)
6 e* Y0 U1 B& y3 ~" k]
) d/ J6 m) x% V. uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) U+ v$ }1 p1 [0 Z# i
set global-reputation-list (replace-item j global-reputation-list new)7 P6 j3 s/ r& {* D) H) ]" C( ?4 _
set j (j + 1)
6 S4 p) i" {# m; x]
+ H* ?5 B0 s; f D2 _1 R4 U, X+ tend6 u" B2 z5 G; d% @: v6 s( u
! r1 J" Y2 P. Z* |3 j
9 \; v. y, M3 r5 {' r
7 Z, W7 o2 B$ Ito get-color
) M# T W2 I" v
& b5 s( N0 z% I) Bset color blue6 w3 J% `7 X4 p- u7 @# M
end
. v( B1 z9 }! V* }. e) p- n$ o* g( l' E4 O* V7 Z- _7 _! L: ]& K
to poll-class1 a) m! I* [) U0 G* U* P& D' H( X
end
# \5 T; J0 L" b' y' f3 i8 v' i2 R) Y% ^. g9 ~
to setup-plot1
2 `4 [( j$ H/ S- U' c) G4 z, H3 O1 x' |6 _9 R C. V. @# `9 f
set-current-plot "Trends-of-Local-reputation"$ h, J7 ^+ b" ]6 B' }
+ {5 n, `( q- k
set-plot-x-range 0 xmax
k% q2 c% P" Z/ _
3 l' I+ O/ |/ U" ^set-plot-y-range 0.0 ymax
2 l; T a" f# bend
" M' M0 i6 @7 w( G' @3 x* Q1 n `! D: o7 m+ Z
to setup-plot24 q! l$ \! c% B; }1 W
+ I8 {- d, s( _" j
set-current-plot "Trends-of-global-reputation"
) `! c7 l3 b! f# h: ~: l! W1 C M5 ~# o6 o% Q) F3 A
set-plot-x-range 0 xmax* M$ n. M; |. P4 D X% ?4 f/ O
I$ u! B& W2 Y P
set-plot-y-range 0.0 ymax: o4 t$ n, j5 y& k) ^8 T! O# [
end* Q- {' q: |( i5 E
- A% I7 e6 Z/ o0 W9 S: _( h
to setup-plot3
+ @" {% K: T9 V1 F0 p1 H: v' q! S5 w2 [$ Z) Y# `8 V
set-current-plot "Trends-of-credibility"
6 l' m$ z9 b: G& y* l4 @6 V* H% X' d4 _9 Q
set-plot-x-range 0 xmax
5 g8 z3 F! s! @. I+ c. e0 h. i
% y N% `" U0 ^* aset-plot-y-range 0.0 ymax
' A2 M \6 K/ O2 |) n9 c) S: bend% [1 h3 l. H# {& u1 f" A
) Y/ p7 @* R- X+ Rto do-plots
( t0 V+ o- [: Yset-current-plot "Trends-of-Local-reputation"9 I% o2 ~- O9 Q; F Q* C5 N* G
set-current-plot-pen "Honest service"
5 _2 `" @# r% S0 E8 Iend
g1 T3 ~) T1 M" d$ m8 R) w, q
1 @8 Q; d5 O) z: ~9 Q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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