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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# O- l# o: q& b: R# K# q
globals[
e5 a! z3 ]8 L7 X6 Wxmax
" d" E$ A0 W8 M; i% Nymax$ R' v2 M. B! U& n! e) w
global-reputation-list
0 s. g0 ]) Y- L3 U
) D& V$ ]0 W# r9 v+ y& s;;每一个turtle的全局声誉都存在此LIST中- X7 B, `. C7 g5 |; L! N/ y
credibility-list G( O' G4 O2 X- Z+ J+ q
;;每一个turtle的评价可信度* x) U C, ?& q% b' W5 L* d0 d
honest-service1 o8 t) P5 x1 m% z
unhonest-service
; b( B" P3 }* P# ]7 ^! boscillation
8 w( k! v8 _5 i: Crand-dynamic
7 R. u; G' i+ N9 E* p5 z]! R8 J, f' H9 C
% o' b) n. _' |( Jturtles-own[& e2 c6 ^6 b l+ R' f" |
trade-record-all
5 n7 y$ f* ^2 i7 c6 o;;a list of lists,由trade-record-one组成
7 y% x5 W- u9 L) C8 P) ftrade-record-one
. ?, j. c( f- n x;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
! v6 m# |) C9 u
$ P/ w! l. ?+ Y" P: `0 ^;;[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]]2 y3 S/ f/ f# `# H6 y T% U) h1 s5 E
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]
1 Q0 b1 s) U+ q2 {4 b' Rcredibility-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
; z% I+ N3 D2 V$ l4 J6 Oneighbor-total+ a. a$ a1 G9 H+ h7 f
;;记录该turtle的邻居节点的数目% h, x. [" e7 R" Q
trade-time+ I/ b9 c) w2 K+ B
;;当前发生交易的turtle的交易时间
" t% ]# K. M9 j/ wappraise-give
- A9 V; V; W8 }4 \ x;;当前发生交易时给出的评价
0 Z/ t r# u3 R. K5 R4 bappraise-receive7 |& S" B6 q! s- ^/ ~
;;当前发生交易时收到的评价) z, j$ u5 Y) c9 }9 b3 `
appraise-time
3 |9 U- i5 ?5 | z* E# s" @;;当前发生交易时的评价时间
; G& l/ e& f& r, g6 u6 m2 Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉! I- Y8 W% _% ^7 H( d7 w* t; Y
trade-times-total
% U# o _7 L1 I0 j;;与当前turtle的交易总次数% ^+ _% o5 ?/ Z ~
trade-money-total7 @5 O8 n- A& |, D/ N
;;与当前turtle的交易总金额4 e2 `! M2 t% W. B; L0 ~* C* \
local-reputation
' ~! q5 x5 l( V qglobal-reputation
5 N! ?$ x/ m5 w" b( n' Ucredibility; {2 I+ n" p. M) @( k' B/ V
;;评价可信度,每次交易后都需要更新
8 ?) `1 A( J8 B2 g; B4 m0 Ncredibility-all
$ F2 d: a' l* b! T4 N* k: V;;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 y% T- w; x( }5 Q B( L7 u: b
& |2 k2 H- F& C$ Z
;;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* \. Z3 w" n& O5 ^ e2 o2 ?, S
credibility-one* n& i5 S% B/ z) K4 B# d+ b$ p
;;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
: b) o _' @" X+ a' Hglobal-proportion, i1 R1 S; W ]: ~ @
customer. [; N: e* {7 G
customer-no0 p1 @9 ]' \6 c, @# g) H; W
trust-ok$ ]6 x' J# K& p, i! [6 f
trade-record-one-len;;trade-record-one的长度: S: a# p, {8 F& w; f) i- q! |9 e! Q
]/ Y2 r9 O. ?- W; a3 w" i
; T2 U/ {; q$ j5 L$ q4 I/ i
;;setup procedure
& a9 B, m3 D, }; Q7 A' C0 f) ~) n; G# Y* S& a
to setup
9 B% o. P+ W% X5 {# y) ^* N" R2 v" P) z/ X
ca
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9 ~; y* y+ ?' V$ g2 e$ @/ ginitialize-settings
. ]3 H- v( l+ ?& X9 i% G2 B; D" A) D2 U7 {3 _0 J3 l
crt people [setup-turtles]
0 ]7 J, s" E# v" K
8 Y3 g2 s; g3 W, T( O8 a! c7 greset-timer
4 ~2 Q8 y- B4 B# H/ h3 ^0 @6 M7 m
9 b f1 T! G% d6 m6 C$ F! V- Y/ zpoll-class
; K L, i5 m& e5 O* X& h; t' U. @ i1 _7 N5 o9 }
setup-plots' f' B4 z. v+ ^' S l
. z, O R. A" d* P7 J5 Y, e- Ydo-plots, d3 v/ u( _2 n( c
end
4 C' y! A7 b* r* ?* I
* L5 C( J- N) L' d J. r# pto initialize-settings% ^( b8 ~& G! X& V- z
! O( q2 h i% e/ iset global-reputation-list []9 w* D3 {0 j0 b& T' B
+ }1 O4 Q e8 t
set credibility-list n-values people [0.5]
3 U7 j; [) S0 f4 L7 L
' Y3 u* L" M- J5 v# O, cset honest-service 0& G, g9 O6 _4 ^' y
2 D! }: w6 a, |& Q' F J. ~set unhonest-service 0
9 g; D( _. I4 D# L$ `- d% d; w" `* G" m6 I" A% V# g
set oscillation 0- r! @5 ?* s/ P) ?. u8 ]% I. P
/ P0 I3 B2 l3 h0 n& t
set rand-dynamic 0
) B+ r# k3 [& P$ P( \0 A: E" r! X( Fend! i8 E8 _* q2 G0 B
! X" b$ _' E3 D1 G5 U P R3 Wto setup-turtles
( [6 `. T' d% G m" `& Aset shape "person" s' |5 p6 m9 \8 f% B; i
setxy random-xcor random-ycor. ?1 e& M- x2 M: H/ B* m
set trade-record-one [] }/ l4 k n2 y& a& G2 n
! o' C6 e3 r2 l7 A4 Y
set trade-record-all n-values people [(list (? + 1) 0 0)]
/ D' k+ r6 j2 S- G7 J G. k. l( |/ s- y
set trade-record-current []1 ~: X3 \0 @) U+ {+ W1 V
set credibility-receive []5 n* o, Q0 y; v. C: [
set local-reputation 0.5
$ \* w& ~' ^2 g }( Q. g8 yset neighbor-total 0; x7 m( Y _% G0 y
set trade-times-total 0
4 C& V- { r4 _& x; P9 d$ vset trade-money-total 0
# G( n8 [6 f x9 K$ U. @: Rset customer nobody
" g6 T7 S) x8 ~' W* A# n8 sset credibility-all n-values people [creat-credibility]
" I5 T: B& I7 z% N* d9 J/ xset credibility n-values people [-1]) Z7 {* v5 P. Q5 N
get-color- A: } s. k" d8 Q( B
. j. w7 U) m% j! z
end
' Z, D. r' s1 J1 a m) l: M9 u1 ` `4 ]* P
to-report creat-credibility& ?" \% O; c7 A, i9 s+ v. i
report n-values people [0.5]
2 w m- ^6 M i, w- h7 c0 Q0 fend
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to setup-plots
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set xmax 30
, M `5 s z+ o2 |5 i* M
; V( ^6 G$ {& y3 k4 I% u, G2 }set ymax 1.0# X4 l: X1 B+ v2 l" q
+ j9 w) Z0 O6 i8 z: Qclear-all-plots1 W( Q* ^4 H2 g a7 N
; I' c& y0 k9 t1 O5 a' u p, b3 H
setup-plot1( G9 p. \( s4 q! U( A2 R+ p
0 e9 Y8 d7 k; \% J' }setup-plot2/ n" Z/ k- K; \: g, {0 d
( A" T5 x7 y+ s; v% v# L
setup-plot3' U' i" o1 K( K4 ^. l
end
) o" m% d7 @4 t5 V% v2 g5 Z7 U+ ~' ?; a0 z1 }& A7 k8 V( _
;;run time procedures# n/ |1 x+ v! \: _: @* t6 P) |% c
2 {0 Y- K0 G: I; n1 _) z' Mto go: Z% A! U& F j; J' I
+ Y2 S, C9 ^2 R4 o" z# @2 e( T
ask turtles [do-business], U* ~2 ^+ }$ |; {/ W$ M
end
2 _4 A ^2 i( @" t, |/ u) X1 |' b
3 M9 j2 o2 K/ R7 w T# W, mto do-business 7 ~) C9 |4 q& u- s. F
3 b$ R8 G5 ]4 j$ V- O$ M5 ~$ X8 m% V- \/ p! u
rt random 360
% w9 P5 K$ g' [3 V6 r4 d! s( b+ k, p- w" y j- }# \1 E. m+ o
fd 12 e* `: {7 K- B1 n6 P
+ y4 O4 B) _0 b' Y7 q
ifelse(other turtles-here != nobody)[
3 z' E- @, h6 B" u6 \7 c! s- \. O2 h: q' U
set customer one-of other turtles-here, l- T' L* h7 ?; P" p
' Z) z+ M5 r* q! j8 f7 J
;; set [customer] of customer myself0 S8 W$ |3 T$ U) h+ M/ K
: L4 u/ s. j; O1 e
set [trade-record-one] of self item (([who] of customer) - 1)
- \3 {7 J6 \ ]. p4 `, b4 Z[trade-record-all]of self, y S9 l" F! f ]5 e* X8 ~
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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* ^$ L( E. o l1 D# l zset [trade-record-one] of customer item (([who] of self) - 1)6 C' y$ w2 U* G" K$ I+ D2 }5 f
[trade-record-all]of customer
6 s$ M7 n+ l/ a5 v: i" q
5 R2 X: T' i v5 Z' i; Aset [trade-record-one-len] of self length [trade-record-one] of self
5 R* v6 J0 i1 o9 ?6 E
- q5 @- M& [9 g" rset trade-record-current( list (timer) (random money-upper-limit))/ c- `" [- h5 g8 D1 X O
3 E! a/ R$ }( K2 E" d! C- l# }
ask self [do-trust]
* ], p/ Y Z3 S2 N [;;先求i对j的信任度* g: G4 l7 x q
* e( W( H. x2 c/ d2 Y* z/ k
if ([trust-ok] of self)
; M4 D5 K5 {3 o N' W2 r* s6 R;;根据i对j的信任度来决定是否与j进行交易[
: N8 e1 Y+ |, p a6 q) P9 W' ^ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! w2 t, ?6 [% }! \. {& J, Q& u7 E5 y: u& I
[) L; j+ C( y% l0 {
x; e! f" ~1 Z+ j" v7 y
do-trade- Y" Y/ a6 {6 l: H
4 p$ F2 R* M0 _1 i2 Z/ [, uupdate-credibility-ijl; ~& V$ ?% G" p* c' }4 W6 f ~
/ U" f/ {) h$ d4 v" p8 ]/ u
update-credibility-list
' Y+ W4 |1 { T6 d( h& |, ~) _; K8 C
; p: n, m: d& P& t* T) ^% Q
update-global-reputation-list
0 c- t# x) g# b" ~9 I$ w5 K
: R. r/ i0 [8 @ }! J$ n$ U! G% ppoll-class
" i& E t1 V' }- H N5 P5 ^4 \+ V3 T; _; Q2 |5 M2 A* E. Y
get-color6 N. }7 V. D% q* Y% F+ a6 b0 p
) \' t' l7 d/ v, r]]( D- i' W$ E9 J5 ^/ }$ Z; ]
& {2 @# \2 g2 Y% X& Q: ~! N;;如果所得的信任度满足条件,则进行交易
7 J& R& q# C+ i+ q
2 J7 r+ C2 R3 C2 z* X- U8 N* g9 w[2 L) D+ H a7 Q9 J6 w, r2 f
6 ~1 Q% `4 B2 Z
rt random 3603 v# X3 _; n+ e7 b
1 n) U# F" D2 z1 K Z& K7 E
fd 1
5 Z9 p) _* w4 L! K, O$ N% \% n. a8 B5 P8 w
]+ ]/ _ ~: B! G+ r0 S* F0 C
. W6 |& n, o+ L3 P# r+ Send) V9 U- J! C& F+ H# Y; X Y- d
- f; p9 p( O9 I+ N4 nto do-trust
], d! N4 \1 C$ i9 Kset trust-ok False) I6 `% P6 L* P1 j& ?- N: c1 F
. A* V& F5 d/ M8 n, p" c8 R. R7 A3 O
let max-trade-times 02 ?4 o, j z/ }& M
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 D' d6 R& G& m
let max-trade-money 0
8 _* {+ g; z/ }% v( j' [2 w) \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 T" r; q2 ?# v6 g" P7 D1 n) K
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- `* |1 v. [$ t1 F! h
# [8 A6 [: I; N* S
' E0 }* p, M3 Qget-global-proportion
! F* J( z9 L5 @- d/ W; Mlet trust-value
( V# J7 N4 o9 a0 T8 l8 slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)1 v6 I9 G) a6 E5 n
if(trust-value > trade-trust-value)
1 d/ [ h7 f! }" @" z. o[set trust-ok true], q" j) `1 v9 @' N" e
end( z- a7 P. ~( L, v5 L% g7 M% _
3 B7 a0 z2 L( Y9 t& {/ Q4 [7 f( v
to get-global-proportion
$ u/ c( B. t$ w7 E* _' u2 nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ Z' } k t: ~! {% t D' a
[set global-proportion 0]
9 O9 C N* C8 t$ ?. z[let i 0' _/ E$ d9 |2 m& A
let sum-money 0; A3 [3 `9 t$ i8 D {: _7 j
while[ i < people]/ G6 [: q$ L* r) d$ j/ ?: c+ |
[) B8 T6 }* n# \6 H7 Q# X
if( length (item i+ O2 ^* L0 C+ c' b
[trade-record-all] of customer) > 3 )* J/ g) s6 Y, e
[; E# j4 ^8 e3 \4 ^' r" f" X
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)); d! k6 P% @: j9 ?
]3 j8 E o9 x8 H3 N. K3 o+ r5 R- |' [
]% X2 w; \: B$ R( Q! o9 n1 Q
let j 04 N4 X. h9 m8 z5 a- w% k
let note 0% J' _7 g+ r# \% a3 _0 s9 _1 w' c' k
while[ j < people]
1 T; f9 h7 @9 ?+ C/ n% Y[
: [$ R. G D, l9 Y1 lif( length (item i
. p$ y" [; O0 r$ J6 `0 b[trade-record-all] of customer) > 3 )
+ }8 k7 |2 M% K* T) t/ Y[
5 x! L4 s4 {/ _" m+ j2 }4 k; }6 Y. bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ A, o/ K- w% l' K6 R* u' z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 K9 x- @1 Y' u$ i2 K: x' p
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], p9 L( R& g2 i* `
]
# s) c3 @+ z( C/ k: g: J0 y]7 l! d4 t6 V0 x) D8 r) m
set global-proportion note
* ~" F4 K/ s; x2 @0 X]
8 T: c( J* L; Oend
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to do-trade
# M) V% ^/ K4 P! ]" `: `;;这个过程实际上是给双方作出评价的过程+ `+ u% `+ x. h0 Z* `3 J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( B& F6 v8 D. H( a+ b' Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% T; M% f1 _' @. w5 jset trade-record-current lput(timer) trade-record-current
6 j1 [4 X% X6 V- H;;评价时间0 d [+ Y9 K8 V
ask myself [
9 K" O% q; d1 d2 z2 K3 R# ]; }: pupdate-local-reputation/ Z w$ z. E7 R3 m
set trade-record-current lput([local-reputation] of myself) trade-record-current
) i; z3 x- E: u! e]% E* ?, ~ m% s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 Y, b7 o0 [& ?0 a& C# j;;将此次交易的记录加入到trade-record-one中; v& Z1 Y. Y7 U; X3 I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" R3 j* U6 C$ B0 N9 plet note (item 2 trade-record-current )
* o+ O; ^( i7 z- Aset trade-record-current z/ A# q# y- r* e' B: _' T# H
(replace-item 2 trade-record-current (item 3 trade-record-current))
' R4 Q( F, O7 L" a- t" G4 Q3 Iset trade-record-current
" P& d) c C1 h(replace-item 3 trade-record-current note)
+ C, U r \, Y m9 F
5 R1 V9 ^7 ~! J/ B* X4 c, ~8 L% B4 @- m( ] X$ R
ask customer [
. ~: l: W0 k& W' hupdate-local-reputation' {$ X: D% }, p, J
set trade-record-current/ J0 a) e6 g: E- y5 A8 v r3 o
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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, y# t" W8 L9 g7 u7 j1 @
, F: n& s! Q7 n: E, ^( L4 Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 f! L; y2 E. f0 u% n$ L& Z% [- f, D9 G' R, U4 k# Q/ i4 V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 P2 ~! _1 D2 h5 j: p* h
;;将此次交易的记录加入到customer的trade-record-all中
* u; _( [$ L0 J: zend
, l! _8 C: L/ r( p
& d3 P. |$ z& D; sto update-local-reputation
! y) O' N8 C# ^) s2 f, Bset [trade-record-one-len] of myself length [trade-record-one] of myself# q6 B) s+ c* O, A
4 c% K- D/ u1 \
s5 _1 w2 u. _
;;if [trade-record-one-len] of myself > 3
! W4 s8 \* o; c; f: c( {update-neighbor-total
' K) s$ L* d: M" m;;更新邻居节点的数目,在此进行. p# Y' p2 ]# Z( u8 Z6 W9 v. v
let i 3
. x$ C. p, h' z$ D# [; S% o/ Klet sum-time 06 }' W9 t$ { t/ ?6 m7 W8 i
while[i < [trade-record-one-len] of myself]$ |1 x z0 _ o" q8 F# Q
[6 k- k# n$ Z7 i; b. _$ x1 ~! S% l, G
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 b' A! B) x7 P( c3 y* z# |set i6 b: [' f# U8 l9 H% X" k
( i + 1)0 C0 S% A m# T C8 {
]
: H( I' m: \# \/ e; \8 _4 _let j 34 M& y8 l, p, u$ [# f
let sum-money 05 X P! B" `5 Y2 W. C7 E
while[j < [trade-record-one-len] of myself]
4 B M5 v* {# u[+ [& V$ M: k: R/ U
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)
/ B7 {4 m1 a/ e5 S! I1 [set j
X2 O m, x0 O3 X/ H9 v' J( j + 1)
+ ]' |% h# ^) Y- {2 I2 w]3 A( S! ~- B2 s
let k 3
4 B) l6 C. o2 I# m$ Q4 `let power 0
5 M; ~1 d; ~6 A: z! }+ Llet local 0
2 w9 D U" u1 Lwhile [k <[trade-record-one-len] of myself]! C/ x/ a$ d9 j: H6 P3 `! N! H& A
[
2 q: O! t8 n1 W C) |' Mset 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)
; E7 K, F4 P. b1 qset k (k + 1)
" @1 h9 T: E) c3 X8 N6 o M]
z" G6 w# u9 I% t& r! k, g( }set [local-reputation] of myself (local)
0 X# w) h, x3 R @# bend
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* f: B0 Y! d& h0 V: ~% k" R5 Kto update-neighbor-total/ v, E- n* z9 m& s2 f2 a0 H* H1 A G
! t. W. `& s" [' N
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 a# L0 j' m( M( ]# q3 O6 J
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end, u) K$ I( ~# T( |3 E! P! A$ T
% g, t2 C# ~% G5 I b- z) G6 bto update-credibility-ijl 1 j3 ~0 _6 Y8 t9 _1 V
; i1 }$ K5 |" J! r% T' q0 f$ t
;;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。4 Z! q1 a, C& |/ |- ~& E6 z" h
let l 0! D! K* Y2 Q, m, b2 n
while[ l < people ]
) s, I3 Y8 Y& z;;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
4 u( c. ^9 W2 }& y+ k[3 e8 e# _2 {4 n. ]7 G
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& u6 G- L4 {# g1 jif (trade-record-one-j-l-len > 3)1 z. B ~5 h3 P$ D" x a
[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" c9 Q# S; l, R
let i 37 [/ ~" j0 T+ Z; W- u
let sum-time 0. S5 D& s( z0 Z) K3 q
while[i < trade-record-one-len]
. a- C, v3 s, K[# A" B x' ~, X
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): G: J$ H' H; O3 p+ O
set i/ Z8 \9 |9 R, P1 Z5 T2 Z$ }
( i + 1)
6 o% v1 d! P/ N# Y6 i' S]8 W7 e8 K+ d3 h7 y, V
let credibility-i-j-l 05 V/ J" |5 H% I
;;i评价(j对jl的评价)' N+ Y' P1 r6 R. v1 S0 g, h- A2 z
let j 3! a- J' X- Q# H/ n' r: B
let k 49 j1 `& {2 ^5 p0 R
while[j < trade-record-one-len]
+ z: |; k, Q! {6 o[
$ B! F! `# e* @* I6 ~% Nwhile [((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0 _8 ?0 v8 W2 j, |
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)0 E9 M7 h5 i& p P# P
set j1 ?: U, c" \+ @; k' w% q- S6 a3 o
( j + 1)% @! \6 e/ `. A( V' N/ S, N u
] v. t& _; Q- X' F! T4 \
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 ))4 D4 R3 B: U! ~& T* v" U$ M$ ^
% @. Z; j8 a. b, {+ J& x* S! Q8 }; g) t- _0 z8 H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 {% J% o; P6 X+ h/ F. m) ]
;;及时更新i对l的评价质量的评价
3 |6 O: l9 f5 ]: E2 cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ ?! ]8 l4 y6 I8 ?0 R* j9 Q9 C% Qset l (l + 1)
2 k2 F% `) ?7 t9 ?; u9 s]
! p7 _0 x0 a3 lend
5 u- N. b. I$ W
; |0 l0 {: t* A+ e7 b7 q8 |( Z4 Xto update-credibility-list( J3 H( v/ I4 c% K7 i# M3 h6 H
let i 0- z5 M* o1 g/ ]* f' g
while[i < people]
6 |# A. O9 O" o2 x* ~- W[
1 m+ H$ x5 a v3 I& X" Y# {6 \let j 0
& G9 c2 y/ p- U! n4 A' F! ^, d- plet note 05 u8 H! {- O( O. H& A7 E
let k 0' A! f- X, s W. d2 v# n* Z
;;计作出过评价的邻居节点的数目0 [6 A7 R0 C1 _" u4 ~4 X
while[j < people]* w. f5 w7 ]) o" |) c. ^3 D$ {
[
. \5 Q# c8 O4 j9 `' F# E6 h4 Xif (item j( [credibility] of turtle (i + 1)) != -1)1 P# n$ e+ H g1 L4 Z2 `
;;判断是否给本turtle的评价质量做出过评价的节点
) K/ L) D1 a! Z: E* R[set note (note + item j ([credibility]of turtle (i + 1)))
$ V) H$ L1 Y- d) z8 b1 u;;*(exp (-(people - 2)))/(people - 2))]
+ r( B6 I2 ]% e! |8 a" b* @$ o% vset k (k + 1)
, J8 @9 C* |+ K! w; N]3 L+ D/ j8 G$ M
set j (j + 1)5 \' Q9 A, Y# b! J. Y9 Q' y
]# f4 O, i4 X+ I. L8 X
set note (note *(exp (- (1 / k)))/ k)
1 m& l3 x/ ]4 L4 @, K; Hset credibility-list (replace-item i credibility-list note)
' u% ? o* E, Z' y/ p7 gset i (i + 1)
' t' g( ?( g% r]
" v: M' H% P# l+ m7 R4 iend
7 K. B- e5 l3 l! i& O; }7 g! P s: d5 T4 f
to update-global-reputation-list
3 h* m6 p" o: i" _let j 0" Z! w- Y6 Z6 n% l8 k' r- M4 P
while[j < people]3 K& c9 E8 a- I8 T( z
[
" S c4 o7 u Plet new 0& g5 N4 y7 |) g0 A% e" F! {
;;暂存新的一个全局声誉
8 z4 y0 g: ]8 d# R) w \let i 0. w& `: y% d& o% c2 v! z
let sum-money 0
! |* a- ?, y! q' U {! d P" clet credibility-money 0 K* Z3 B- }8 T, C* d
while [i < people]: M6 S% S" F/ V1 J& y/ M& {- t& [
[
/ B5 g- L% F2 c$ C3 N9 P7 y p# tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 [4 @) N& f7 g. \8 [- H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 ^; h5 D/ d9 e# s) D
set i (i + 1)
: H" j: i5 K) p]
& D: n, n- `& O# i9 b) {2 flet k 0( P+ z/ k1 J) Y7 F
let new1 0
0 Q- ?: m, \: iwhile [k < people]
( C% j! E ]. I[
* U z" U; Q% F7 _" s+ @3 `5 ^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)- x7 H2 M4 Y8 g$ l# i: P6 Y. A7 q( A
set k (k + 1)
4 l( J4 G% R7 d9 @& f]
' S6 \, K' o( I* a3 T5 j0 P# Dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! d4 |. k' h. b& Oset global-reputation-list (replace-item j global-reputation-list new)
. g& e, c% N% @! c, @5 Hset j (j + 1)
6 S" F8 N/ K% |4 A6 P8 `]/ U8 X% e8 H- I6 J
end- j7 [% P4 `( O1 d. Z0 e* |
1 t( R B% K3 A! B- P8 r ~* ]6 M( V
, v9 o5 C/ [; x) |
8 Y! l. u, Y, q Kto get-color: `0 }7 N6 t% v) {
, Q6 h7 n. b" U3 r- n- Yset color blue& w% C2 t( |: A) t
end
+ k: ]' x, ^/ l- E# z- ~$ S7 N* k7 I! x P
to poll-class
; \ n3 z, |9 a/ [end
; r- u3 i6 x/ {* }4 ]6 Q" | n) S. X0 Y) ` _2 ^
to setup-plot1
3 u! e( z* |" S; N4 `" C5 U4 U" E, u- z; L0 X3 c
set-current-plot "Trends-of-Local-reputation"0 l- N2 y( r9 U/ W
5 x2 E; X+ e1 m! tset-plot-x-range 0 xmax" X3 L1 C9 p, }/ X8 I+ w1 ~' r& M
$ ~! r2 J, s* ^4 \
set-plot-y-range 0.0 ymax
1 }: C4 P' z0 S! i! Kend
/ v/ ]" w, T1 h! C
) E3 B' t( w4 V: nto setup-plot2
6 \8 f9 t/ t2 U" ~! |
% f' Y$ v; _+ o. cset-current-plot "Trends-of-global-reputation"
6 V7 d5 e4 ~& e4 g. Z' K8 [
& G& V5 X# b8 T0 Rset-plot-x-range 0 xmax
3 ?8 G: l! ^& V ?' v" q; i' t# i( b; ^! k
set-plot-y-range 0.0 ymax* P4 g# }* l T
end# V, F9 F5 X& |( r5 s; h9 G
/ G3 k6 W. X& o" Q2 B3 V
to setup-plot3/ o3 {& V" F! q5 Q
: I6 b; G6 o. k3 x& r% s
set-current-plot "Trends-of-credibility". J) z5 |' w/ G4 T; x
& D$ ]; Z/ q) q+ G1 z* r
set-plot-x-range 0 xmax
& t: q$ m9 p) _9 I) F8 v6 }0 p% @& O, U
set-plot-y-range 0.0 ymax
7 W( P( W6 M8 w: ~. q8 `end7 \+ ~ P$ q- n i
3 h5 P( Q: L. h, U+ mto do-plots" {6 b% H3 k# [3 R
set-current-plot "Trends-of-Local-reputation"$ N g) {$ M7 F8 _7 [
set-current-plot-pen "Honest service": ?% S# e% ]7 M' |" b
end# N( ^" B* |; A4 u9 U. Z
+ u: |$ a7 B9 E5 o- Q( o4 a
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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