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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
: Q% ~3 r1 J3 L. fglobals[$ U% j% N; K! c) x; O0 d7 R
xmax4 [9 Y `; m0 n* L6 E% x# r7 H9 i) s
ymax
! h: B& U% k& Q, Cglobal-reputation-list
8 B% J. }7 m( E8 I0 g' |$ F3 S- _ N' k6 W3 m+ r8 l3 r' Q% H& `
;;每一个turtle的全局声誉都存在此LIST中
# p" s! U5 t0 n, a0 rcredibility-list) f+ A( P; k) X& h5 z- t3 _
;;每一个turtle的评价可信度+ B+ X7 J9 K; i
honest-service
" w. x! P* z, u; Yunhonest-service r$ t' b8 n! q. W1 f# |
oscillation
& c0 h0 _' a1 U! Y, u/ _% p6 Orand-dynamic/ e" k: j+ x0 h" ?; F
]
! ~' ` M9 r; b n
% x: N) O8 I0 h- S& g- z; Uturtles-own[
) U+ O. B# ^5 r; K' mtrade-record-all
; B( k+ l3 v0 d! ];;a list of lists,由trade-record-one组成
( m2 n5 ]' {. Q1 }6 Htrade-record-one; F6 G& G* T3 O: B. F% Q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' x% h0 S4 w# S2 m/ m
4 g" D. L2 D" c6 A# U8 k1 b8 o& S& };;[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]]
" j% M! x* }; T9 [6 ?7 w# ttrade-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] I2 }9 {* @+ ]- g+ Z
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
2 I* W0 [5 k7 ^" F# v6 qneighbor-total$ e/ ~4 ^# t& F5 z# s
;;记录该turtle的邻居节点的数目: J+ u; p1 V( o- ?; z, v( j4 b2 o
trade-time0 t& b5 J7 l' c/ _& F
;;当前发生交易的turtle的交易时间
6 _: O$ Y0 W& w; k& Aappraise-give7 x# N* s; Q6 y+ i% l
;;当前发生交易时给出的评价
3 ~( M7 W# w1 vappraise-receive
! G8 v/ W" W% c;;当前发生交易时收到的评价
5 j* Z. w* a$ \6 s& Z9 L2 \- Fappraise-time
& ?) B' R. i$ u% t! O3 D;;当前发生交易时的评价时间1 Z/ y" O0 A8 m& t& @' Q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉6 |8 A/ ]" t' n9 D3 q9 s" J
trade-times-total/ m- D3 n6 q* x: d% V4 ^) B( F$ p( b
;;与当前turtle的交易总次数 [ A3 S' L* P
trade-money-total4 [! q4 r) w) o4 o2 g# z
;;与当前turtle的交易总金额
L8 i9 }5 r: a4 l/ Slocal-reputation$ V. u/ d, g" }* ~% {8 _
global-reputation
7 T* B! X4 V( y5 M I% Z8 T1 E- Ccredibility
# X+ _/ R- B/ f5 L; I* O; n;;评价可信度,每次交易后都需要更新
% V8 d3 o7 m1 R3 R; Z/ j$ v4 zcredibility-all
3 L' `4 {, _1 O9 W9 t;;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- F, |( V& F5 _
5 t l$ @3 L5 k8 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# P/ K& e9 E& ^( l7 e7 @, U
credibility-one
% v# k5 w9 u& |+ [;;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- `7 ^% ^9 R# w9 U
global-proportion* [0 J& |! U; _/ M% Y6 l. m" h7 {
customer
) [! ]7 X: t! |customer-no
8 k( v7 ~, C2 N+ _0 X; X9 B5 W/ k# qtrust-ok
; r* }3 `4 k r! r. l5 dtrade-record-one-len;;trade-record-one的长度
. h9 D2 _' l; V p3 ]1 o A]
3 L% l5 m$ L$ ~- O/ A; `6 J' h( Z/ m9 i% r% n- J% o
;;setup procedure
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to setup3 ]0 r9 E5 E m
! h; K" f0 k& D+ X; W c& Kca
3 ], j% k$ A/ m
* U4 r) [% X3 Z% y8 V; D- Yinitialize-settings0 @. x$ s N" `- e( Y- O' Z
" J2 x7 H1 d, K) tcrt people [setup-turtles]
$ T4 Q) h2 t. l4 w" q* o; ~0 ]$ f7 N3 A$ m
reset-timer
- q7 y5 e. O# I6 V' g6 d6 F: E. |, d7 t8 O
poll-class3 B; D7 n9 K' L3 G* g, A+ C! t/ o8 O
1 o/ @8 P0 L$ k, T
setup-plots- n( {9 C( ~. i* P
5 m. Y2 v: _9 @+ A
do-plots
1 K* `# H; @5 D; P- p, `# I" F* lend0 _1 S' z- k, c
- e1 V3 ~$ F5 ^) L
to initialize-settings
" I7 }3 b/ X! I# e3 [
/ l3 g6 w/ g4 t5 U' P8 nset global-reputation-list []
9 }! ?$ _ D% L# k- D
; l6 `# j& W) u& m2 w; Kset credibility-list n-values people [0.5]9 E' L) c# x1 z/ O' G0 y& ^
2 F0 p0 \8 S8 Q1 P6 b6 q
set honest-service 0
& c2 ~ Z% V) R5 g4 }6 a
6 `. w6 e! h8 t5 g, k K( Sset unhonest-service 0
, ~( o- d0 G9 r2 } \, h; C
8 s6 n9 L2 a- Aset oscillation 0
& b" S0 n3 A( ~8 C: L% t' {9 ^$ P; ]0 k* }+ m' O
set rand-dynamic 0
! E0 E8 y0 @8 P7 wend
, D V1 ~9 U# I* ~" B3 O" B: e3 M$ d( u" g6 h
to setup-turtles
& q4 |& _7 g! q9 nset shape "person"# d, {. K1 k6 V8 W. S9 y
setxy random-xcor random-ycor- A* N. t( Z0 ]0 x- s. _7 G; C
set trade-record-one []
, A1 t4 V8 m! Q3 X2 ^3 E: A4 w+ [" N' @
set trade-record-all n-values people [(list (? + 1) 0 0)] 2 G/ z. s \+ ~
/ o, E$ j, h5 v2 b9 L
set trade-record-current []% p7 G9 j" |6 Y! s- l
set credibility-receive []
4 q0 `4 H. @8 dset local-reputation 0.5
* e; p: g8 r8 j& rset neighbor-total 0
: X9 w8 ?2 a) Z5 xset trade-times-total 0
6 N0 N s$ J2 q( T0 E; |set trade-money-total 0
& K+ Q8 `8 }$ D6 q# Q" h) Bset customer nobody
9 l; ]% r! }5 N+ A! B% _set credibility-all n-values people [creat-credibility]- P: G4 R/ }; g
set credibility n-values people [-1]8 @( h. A" h. `4 ?
get-color
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end
! b2 c5 T# V+ r. x4 f6 a5 W: v% `, p7 _9 M; \1 w' {: V0 I
to-report creat-credibility6 `& B' K# {% |( J* ]
report n-values people [0.5]- y4 g& X* B/ w: X+ f
end- k* A' t1 E- u5 N$ G+ ]* P# k
9 J* ?# g( k# B2 t3 B: fto setup-plots
/ I2 l3 Y! E( x2 u, |& V) E- w2 u( l! ^' z/ x
set xmax 307 h+ e7 @+ z6 e. [" g
& Y7 ^1 s$ r& w: A/ x, P* Z
set ymax 1.0 G0 ]2 L( e1 D
, n4 ^7 N. K* j- B( {" D5 b+ s5 y1 l
clear-all-plots
; ]! A0 |( X* u" x
) |, l' Y2 n- [0 K/ |' \setup-plot17 Q8 n/ l1 ^; W" t
) S5 I3 T8 B2 p( y4 Ksetup-plot2% d0 L/ S l& d0 C4 q$ ?
1 U2 S1 p- Q" q, [8 Xsetup-plot3( _, r1 M9 I1 M! L& H) |
end2 Y! t5 T/ w5 X- a% g
& ?2 U; N z, F' O1 ]) l! P7 o;;run time procedures
+ y! x, J$ i+ Q9 l% N. p% A0 f3 ]
to go
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ask turtles [do-business]
# M! ?% c, y% m; T( pend
$ D6 E5 ]; E2 [0 ?4 g' c7 h, k# A& h! n
to do-business
8 h: d1 T" Y' R2 R# ^8 B9 s
& l& U0 U0 b# c+ T
y# X. u2 T$ Z p6 \rt random 360' b% F% G$ b2 L9 a$ Z/ u
3 U) Z- P, q$ {) q5 dfd 1
) Y9 t6 |6 v5 q- i+ W- T/ W( v
5 n: f# q* O: T$ H$ ^! Y9 fifelse(other turtles-here != nobody)[" j1 H+ Y8 |9 d& x, `. w# R) S
+ S2 X. t) A! b$ nset customer one-of other turtles-here# |% c7 M) ]% b4 b* d
0 e/ ?# h, |3 H/ z# O4 ~0 s;; set [customer] of customer myself% o$ n: d+ A! ~0 \
7 w2 p: n) K$ Y& Dset [trade-record-one] of self item (([who] of customer) - 1)2 b0 K8 l' `6 y$ [' X2 W4 h* s
[trade-record-all]of self; }$ P1 u* }6 [( K" q8 s, Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 @7 v5 \2 J6 u
/ ?5 B$ _, q$ {set [trade-record-one] of customer item (([who] of self) - 1); a: D A) J% z. H
[trade-record-all]of customer8 d0 e+ e& f- j: v1 x
$ {' `: b8 R, g( t6 m3 ~
set [trade-record-one-len] of self length [trade-record-one] of self. ]. i6 M9 T7 k
k* \# c8 W5 I- j4 [set trade-record-current( list (timer) (random money-upper-limit))
$ Q* w3 R f8 b# h
7 i( p# _* [8 G- r) Jask self [do-trust]
* `" _0 p2 _, k+ |;;先求i对j的信任度
$ l/ ^1 }/ r; S& x: f$ p1 e2 c# r3 K% X) p( C
if ([trust-ok] of self)5 q$ f/ S( x: W) b- S
;;根据i对j的信任度来决定是否与j进行交易[7 U. Z5 }9 u5 K% F7 j Q2 V
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 ~& g) M2 f1 K& P5 c! T w7 ~7 Q; `. N+ T" S; V! f4 d; N" [5 E8 i% h
[
# F' u/ Y/ A" J, O
$ c3 }! C3 B! Q9 m$ C9 ido-trade
. H% r" R& U* N0 }4 `
$ S" J. e) F3 k" |/ {$ S" \update-credibility-ijl
: \2 V6 [$ l" T" O5 W: t z' B
H% Y4 @0 D& c1 W9 ?update-credibility-list
. o' w% Z0 h( I2 G$ R( |$ e- q- ^: S. c; I" `1 W; P) l
& r2 B s o! v; V# Oupdate-global-reputation-list
) t5 |. Z! C( _+ K) m& a' Y' p6 l5 g& b7 j* M. J
poll-class. Q' J, ^& a1 d+ f7 H4 W) k4 R
5 R9 B9 x/ j$ m
get-color
! S/ h4 m9 b* w$ f- O6 T S
{6 Y5 f0 F& @4 |3 D2 B J]]
$ k1 K5 X& s: k9 r% Z. Z! g) ~( x k
;;如果所得的信任度满足条件,则进行交易
! g5 G! h* E8 d1 @
" q" p5 b/ w$ c$ y: A4 g/ R[% {1 t* H! g4 N5 J! [3 K! {! R
& g! _& A! c! `5 g9 N/ {: e
rt random 360
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fd 1, ]& S, O: i( t2 Y7 b- H8 \
. O0 o) M8 A; P) z]' U5 I i4 C7 v. f8 D
9 q# O! K+ ~) g( X' `end4 r! z5 v0 g- R- w5 w& g9 @/ q7 Y
# a8 v; s- x. e5 ?& i" Q+ U) k% g
to do-trust " \2 T5 \6 T F# C8 t
set trust-ok False
0 ]- C# e' w" N- q9 ~, z. ]. [% q- S. I s6 K+ y" }
& n+ {6 o2 g. ~1 i- V8 x: n) elet max-trade-times 0
# `& S) ^6 E0 Y0 l. [8 @! O6 {foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& C7 h0 p; r* s2 ylet max-trade-money 02 ]/ {# C) y; x9 \( d" x. _! @
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& g, U6 h( y* l4 t1 A' U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 j8 P i, j, R9 j
9 Z2 {. ?( d, k4 y: b) P9 p- k& ?
8 J# f. t! M! ?$ f5 B2 ~get-global-proportion3 ^7 M& |, ]) ]" x7 `$ \6 E
let trust-value! A5 J: Y" [9 H; l2 W6 G
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)# L. K2 ]* i4 Y+ E9 h
if(trust-value > trade-trust-value)& q4 z3 f: w! y! }5 u' M
[set trust-ok true]' V1 ~" d" W5 i# x+ t; Q* }1 _; ^2 U
end
- l7 h+ M' ~3 V
, f& D/ u6 q v" b& |; zto get-global-proportion
- {& i& }! j- A, j, q& l0 cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* I* K6 K8 z4 A[set global-proportion 0]" r0 W; i7 Z. ~; ]7 d; W# Y
[let i 0
9 }! W8 v$ k: S4 Wlet sum-money 0
- F/ Y' d% e- o/ y9 n0 R, lwhile[ i < people] M. K* s! Z9 f8 n: X
[
+ d+ s* r+ x4 s) ^: h: e/ {7 }$ Nif( length (item i+ W: a! x2 I- A: t4 M4 ]3 ?/ w! ?; ^
[trade-record-all] of customer) > 3 )
+ s! a! J- n. G1 W[
9 r! D" J* U2 u: y ^7 [& Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" [9 o9 W6 m9 {4 f+ Q. m+ j0 E6 B]3 a9 u1 P% U# j; ]3 Z" }
], Q* N0 v' G" D2 G
let j 0$ J: f4 y) Q. m" ~* z
let note 0! E' e+ \% b$ W( k; G8 a6 j
while[ j < people]
- c' H2 L& e, U. a! M2 X[
. o* S1 _' [2 f9 H# k7 Hif( length (item i0 `3 m0 D f- z) Y& ]
[trade-record-all] of customer) > 3 )
; N1 D3 {) ]* {" k0 `5 ?[
3 U4 Q; L! ]# d+ t: f: M2 Nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# A8 s' ^4 R% V. F8 w d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 {! P! l" O! o9 z" b0 t' R[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 L8 R9 ~% w2 p
]$ \! d" b6 B4 a1 H& C9 K) V
]# O1 ]* J. B* k/ j* t+ E l
set global-proportion note+ \7 ~$ |' C5 N8 q! l$ J
]
6 Q' J6 g+ h/ |( yend
5 y) o; V6 d% _- b3 D; ^% L6 s8 t, N/ m
to do-trade- \. t/ W' a: _
;;这个过程实际上是给双方作出评价的过程
9 w" x8 }6 q; r- T, B- \- Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# Y" u8 C+ W6 k$ D$ }5 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) }/ ^9 t6 c5 [! w; kset trade-record-current lput(timer) trade-record-current
5 U- x; l; d" c! q) m, ^;;评价时间
0 O1 {. c8 p7 Q9 c0 M! I; h# }ask myself [& l1 S4 u9 K' i5 O
update-local-reputation
@ m N; B3 r* u+ D% _5 z mset trade-record-current lput([local-reputation] of myself) trade-record-current
V# Z% G5 R4 w/ i( h( \/ c]
4 I$ j! R! }: ], P. E1 _$ Kset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 C$ `. T6 ]1 L2 Q* w
;;将此次交易的记录加入到trade-record-one中
5 y4 B7 H- J! W. P1 a( T8 Vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 n+ l% ~% l4 h2 L7 e4 C# V
let note (item 2 trade-record-current )( l0 {$ q) J% v8 @
set trade-record-current
& o) E. b" s5 l7 _8 L(replace-item 2 trade-record-current (item 3 trade-record-current))
3 R. c" K7 P3 S8 |% o( Hset trade-record-current% y' _2 }+ X/ w; F$ `
(replace-item 3 trade-record-current note)! P9 t; L. A; E
( c1 a- {7 d' u h; t7 X
, e5 U ] ]; @! }5 xask customer [+ M) S, a* A' [* T4 J4 \. ?% w2 t
update-local-reputation, ?: I6 H, Z# ^2 Z% s
set trade-record-current+ R' ~# l( \, Z- Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( I* ~0 t, b5 U; e]
! D) V4 \3 s2 ?3 b8 r i
" K8 l# r7 }( C3 D" ~% a
. h5 q4 M; _8 Q: ^+ C: ~7 Wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& F9 N6 ^5 X& F+ s: M0 n/ c# Y9 j9 g2 P3 c! f
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): Q8 ~3 o/ u4 b |" T+ h+ X
;;将此次交易的记录加入到customer的trade-record-all中- U1 E5 s0 ]6 G$ c( O) e
end
7 ?+ I* V1 q% n ~' m4 l/ } x7 |* u* b% n
to update-local-reputation8 N' N- O' P$ s7 D S( T9 {* ]( D
set [trade-record-one-len] of myself length [trade-record-one] of myself
& Q5 G" J# N1 Y! R
" \/ L) C1 }- D; }1 b, C3 |* B8 E2 O% T! v7 d7 ]+ i- ?
;;if [trade-record-one-len] of myself > 3 8 N) K5 P) X. T6 |& w; X/ x. M% R# y J
update-neighbor-total: A6 M: S) W1 K" [' s/ W$ x% P( E
;;更新邻居节点的数目,在此进行
- M0 r% V0 n/ ~let i 3, [3 N* v Y$ G( a( i3 c! @6 B% z0 V
let sum-time 05 @8 ?* |5 g/ Q% o+ O: I
while[i < [trade-record-one-len] of myself]3 o" A; F9 I1 j$ q5 k v. K, Q
[! \# i7 x# S) ^
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ A0 h, e1 I, l! Q* n3 F
set i4 W9 s2 x6 l! M7 ?3 ^' k
( i + 1)
; C1 [. S+ T5 E# V w8 x2 l. b+ ?# m]
z* x6 l* w; zlet j 36 s8 e/ k, }7 z3 B( h
let sum-money 0
- N/ s* L% @/ q7 E- \: N# rwhile[j < [trade-record-one-len] of myself]- g% z0 u# r, a& D" k$ Q
[
. } k$ Z' |7 G) i& Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
: P: F3 g7 ?! }set j: H5 d1 H: `+ x
( j + 1)+ G9 i9 m- q# x
]
$ a0 f/ C$ t; c$ b/ O6 @# o" a! jlet k 3: I1 u" i* Q' W
let power 04 W0 D" H" Q4 T: }5 u, F6 e/ X" b6 t
let local 0
" C; _1 b( e7 j- M$ owhile [k <[trade-record-one-len] of myself]
$ X0 `' m. i. M[
( s3 b8 O6 ^& M; J0 i* ]. ~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) : N5 S: b! z/ Y
set k (k + 1)
J& D1 l& ]% F! }. I' o]4 i% D. R. x- s5 V8 J
set [local-reputation] of myself (local)
6 n. f. ~, I1 I3 p4 `end4 g2 d2 J0 n X- M
' e! ^1 o0 g) M9 j8 ~2 K7 w y8 e3 w
to update-neighbor-total
# f5 b& d9 A' D, N+ X! `0 N
2 C7 W# Q/ o! J9 \if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- X' K3 u& N6 k% R/ S5 a) H$ c# ~: L. X# f. u E
' J t( T' M% U6 H: i4 @. R5 aend" a9 R2 p% _* y2 n# O: k! n! X+ U0 N
: ~) \2 \* Y; O+ w
to update-credibility-ijl & d( i' Y" f S L% w6 ^
" B% }& F( S; U0 ], [;;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。
' P2 k9 |& h E6 d) u2 U4 elet l 0/ ?7 T3 U: r! p: P- \- [
while[ l < people ]3 W; C5 M" y7 _! t
;;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
( R9 O% L% E( w* A* G5 M[8 _) D- y( \5 D& {
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 g2 P- q# }( g1 gif (trade-record-one-j-l-len > 3)& h0 Q: x4 C! N
[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
4 E! k) q6 ^; J. K- z& ~let i 3& C# U! K# e" q1 }7 v0 s
let sum-time 0" B: t1 i! D4 s [% p$ c' s
while[i < trade-record-one-len]' j/ A# X' k+ C3 f
[/ ], F9 ?* I# |# c
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# J2 Q' x7 ?# x4 D' {0 c6 z+ pset i% G7 P" J+ a) M' X) j3 {
( i + 1)
/ S- \3 z+ q) R5 B]3 w; `; V) h! T7 f! G, T
let credibility-i-j-l 0
L) s f1 C) y! ^2 Q;;i评价(j对jl的评价)5 i5 l* q9 h6 i
let j 3
; S* i& n4 {2 clet k 4
/ C3 q4 b; E @$ X. P& N! k2 s( }- V6 ewhile[j < trade-record-one-len]
Q* X( r4 d7 a" w1 r& i- x[
& l0 |( f) Z5 C, R! Q' l+ z* q, iwhile [((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% E) T$ u. v' @$ e
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): F+ t9 N1 h) B& }. Z
set j
: [6 F$ \% }( N; d. c k3 }( j + 1)
x1 l2 a' P) b: u" \]8 t! M+ r+ M1 ]$ E
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 ))" [5 }( W8 j2 W3 o" [
: J! Y) ~7 A$ f& z; b! i* M. P2 S
' }7 W& E7 q1 j' Z$ L6 M
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 d. d1 e* h! p$ F) W9 |;;及时更新i对l的评价质量的评价
) p: W* s8 J7 V3 f- o7 ?% Jset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; _! X$ ^; D0 s1 ]
set l (l + 1)
8 z0 ? v1 _# i8 U]# v- c0 B% v1 x5 v- ~7 B+ D
end
: w/ x; F# a/ j$ k
9 N& e A! D. N, M1 n& ~! sto update-credibility-list
1 h6 u5 I" ` g, ~& E; Z/ F% K0 dlet i 0
: t. L6 p0 o5 y8 |! j# vwhile[i < people]
; `9 A# d8 ?1 e6 n3 q[* T3 @2 M! ~* o. O3 x
let j 0# Z1 R4 O& _& E4 f+ n0 ^3 f
let note 0) X0 O, ^5 P5 R
let k 06 h0 U, n3 u/ t
;;计作出过评价的邻居节点的数目
: G ^/ F* _# x% ~! xwhile[j < people]
% N7 j' l: E6 G9 ~0 M[+ W I* h% [. {3 b8 b& ?
if (item j( [credibility] of turtle (i + 1)) != -1)
1 w$ P7 a: d' K& |) u- z;;判断是否给本turtle的评价质量做出过评价的节点
/ X' {5 B: t+ H$ ?0 s: g6 H[set note (note + item j ([credibility]of turtle (i + 1)))
5 Z- |& }7 N& ^1 A8 p;;*(exp (-(people - 2)))/(people - 2))]
2 P& e) K; j6 @# B* c7 `9 Lset k (k + 1)' r% U: E. h4 [& m6 k& X
]0 D8 x1 g/ N% P
set j (j + 1)
1 d$ `! w2 e6 O]
* A; u2 @& v+ A8 Wset note (note *(exp (- (1 / k)))/ k)4 [; q4 l1 J0 D ^# | J& a
set credibility-list (replace-item i credibility-list note)
, d8 O6 Z4 W* N/ ^" |# Dset i (i + 1)0 ?( U# @4 c- O7 |
]
3 |$ s1 w$ X2 _* w6 d. Vend
4 u. G/ O: N: ]; h) X F6 J) v
! x( k: s' V @8 f6 ~5 Mto update-global-reputation-list% v' U0 \5 ]' G) @# i+ U9 y# O
let j 0' e$ a6 [1 H! A" C8 t
while[j < people]
5 J3 p2 e8 T) t3 J: v% B4 c[: ~ e7 x' X, J7 E& Y
let new 0
4 ^9 W7 h% o- _8 S2 R;;暂存新的一个全局声誉
. g3 e( V# t. d% e: r$ Ilet i 0( K& ]6 R9 M g2 q, ~
let sum-money 0/ w/ o8 X! W- t6 |/ q" t8 f
let credibility-money 0
. F5 q$ @" J3 h! m$ F4 awhile [i < people] R, [, L) _# N5 j
[- l- O: P& l9 J+ X' Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 m7 ^ T; V n! e6 |8 b+ A: I! L9 fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 l2 B3 V& o7 Z9 y1 K( S
set i (i + 1)& d$ c5 \+ C$ d# t) l
]+ m2 ~' F- X1 E+ \& m# a b. b- j
let k 0. p% e: x4 a% M1 _
let new1 0
3 J5 j; N. R4 \. k/ k& V0 Xwhile [k < people]
! x& _; m7 w- H, @, M: Z[
' y( M5 Y& c. K# b l& c! 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)! U) F+ @! b6 ~% A, i. N+ [' Y" P
set k (k + 1)
. d9 z- ]* o) i6 ]1 i. n]
9 X: L( d* w7 C$ V. @- kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ R, _7 z4 M5 pset global-reputation-list (replace-item j global-reputation-list new)
4 m! n% t4 p) b& p0 t2 bset j (j + 1)
* m0 {6 S+ G0 ^) i" c]2 n. l0 n- t/ L7 C, M9 m
end' u! b, M9 ?* [/ c8 w
! Q9 |' j8 L% n8 I& b- h; W! z L
9 u$ r& o* Y4 W0 {! @
! W h& o: | Q8 c3 k3 T3 eto get-color; S" ~ ~' r; `1 q# }
( r% q9 k2 d/ \) a$ W% `2 c! n, U
set color blue
- Y6 ]! h6 b" ]$ t3 M, p+ P9 Rend
7 k! H; h |8 l& i7 x$ l3 l U
. I( s" ?$ `7 W. k, Wto poll-class/ j- Q7 ~+ Z$ ?, ^( {$ |
end6 I' K' M( M) R6 A
7 o% S+ }. ^5 \( b; {2 R4 |* jto setup-plot1, e" [5 j2 C8 T* ~
" D5 h/ \3 A3 V9 n2 B( w# v4 C/ bset-current-plot "Trends-of-Local-reputation"' T# l0 C: g! p2 s! l5 {; b: p
. |7 k6 H: \ V4 N& E+ l- V
set-plot-x-range 0 xmax# n0 C; `7 Y6 z& f/ q
7 h1 D8 a% k3 u+ b1 v* b# ]
set-plot-y-range 0.0 ymax2 Z+ P# q, l' Y! t
end
D& d4 W6 j2 J' k: X, R; |( k
to setup-plot2; _7 [3 U( [8 T7 O7 }0 ?
/ ]; e* D; q0 j( P6 i9 @
set-current-plot "Trends-of-global-reputation"
6 x9 ?8 R) Q, {. J9 O! `
( V* h: Q- g8 D8 lset-plot-x-range 0 xmax% o; H! ~' e7 Z, J( i
$ Z( B2 T/ F% x& M& f
set-plot-y-range 0.0 ymax; M6 C3 @6 L* a, t; T$ B/ ]
end3 U" j7 a4 Y% \9 n5 D0 B8 b
+ l- _3 S3 ?0 c8 D7 S9 nto setup-plot3
" k8 i8 A. O1 F/ @$ o$ | U. `* E0 j. B" H
set-current-plot "Trends-of-credibility"4 N6 r2 S8 H$ h: Y* X
/ q& |4 U0 S7 }6 x% B
set-plot-x-range 0 xmax. Q8 o; _4 m4 b4 E
, K; I. S+ ^* R; X) q- Fset-plot-y-range 0.0 ymax
: D+ r* z0 ?3 `- e3 i" ^end
; o0 P: y z9 A7 Q6 O7 \$ l) x
to do-plots* _; q0 F7 }3 e9 b) z: W( W% g
set-current-plot "Trends-of-Local-reputation"
, C0 B0 C& ~' ~/ S1 J" hset-current-plot-pen "Honest service"
2 B: ]6 i7 V1 E& B* z* i7 {9 Oend& p3 o+ I4 L' a: S5 X3 R5 F
5 E* u' O0 O+ _. j
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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