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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, L% Q" j2 g+ Z$ V% d, T
globals[% }) ^6 e, d7 K3 q. l) w4 o
xmax
4 W) k" S/ Z9 Z4 P7 r$ Uymax
1 b8 x5 |# Y+ C- {' s1 d$ S ?global-reputation-list
8 U* V4 ~9 @2 t4 h
! j* L- V n* [2 c;;每一个turtle的全局声誉都存在此LIST中+ B+ R* z- J: L9 r: h) i
credibility-list5 Z" A3 d+ v( p# k* e
;;每一个turtle的评价可信度
8 W+ t6 o! c3 r$ chonest-service
1 o; H6 z+ m) Nunhonest-service& ~/ y" x8 Y! w- x# Y
oscillation
/ W7 I1 _3 M4 F) \rand-dynamic
# r3 \& P' ~3 `/ }7 i5 j" N]; ?5 y$ d3 D6 I' Q! r
( ], q* ]- `+ O2 `, Q
turtles-own[) g e6 B/ R1 b7 p7 b- ?% f
trade-record-all2 c" Y' Y' X) p$ t' b, n
;;a list of lists,由trade-record-one组成
- O4 P5 z" Y vtrade-record-one
% V. e, F c* X# C;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 `! r& _/ p5 Y6 @. v- h. s; s
3 A% L3 k4 a+ b1 F8 P" L; R;;[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]]7 x8 t" r1 m6 C
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]3 D5 V0 K1 P/ g/ {' t% A+ P
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list9 b7 q+ o: E5 G
neighbor-total
2 ?" t7 ^& N* c$ T& J;;记录该turtle的邻居节点的数目/ \- a) F% I7 C6 n# m
trade-time
1 A$ ~2 \) X" W1 o! ]# m0 ~+ @;;当前发生交易的turtle的交易时间
' n- N9 i0 f4 {, n0 X$ j; Pappraise-give
: G, H1 V! t" }! }# @, @/ i;;当前发生交易时给出的评价
8 e: U. S7 T8 o/ Jappraise-receive; F: ]4 W ]4 J% j7 }) a
;;当前发生交易时收到的评价
1 p% q! ?- N- \4 `' k6 e1 qappraise-time! p" k9 n2 Z; `8 C! g' w
;;当前发生交易时的评价时间
2 ^% P; s. z4 X" }" M5 \local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 e% F/ F3 z+ m h+ s+ W
trade-times-total
+ S3 @+ b' \- `1 L;;与当前turtle的交易总次数) o% |0 O) ]# t" L, n
trade-money-total: \% B8 h! [* A
;;与当前turtle的交易总金额
; j R4 v8 {, l# @1 C; zlocal-reputation+ N+ |- F, ]- H
global-reputation
% X* u" ~ V1 P' Bcredibility" X9 K) }1 S0 |
;;评价可信度,每次交易后都需要更新
( B& p9 V5 i$ R/ c/ Y: mcredibility-all
* b. n, D/ ]* V" K) r3 k) i* H7 F;;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 f. N$ C' F7 ]. Q4 o; \( f7 j9 D7 I6 ?) {3 x% V
;;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) L5 A7 a1 ?% F* @7 _9 |/ g
credibility-one# K9 f5 B9 e. R# v7 d
;;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" L; k( h( @ y% H+ Q5 l% f
global-proportion
: D/ V! R Q& J' g+ ?customer
0 ]3 U, G; \& ^& F& O/ Ccustomer-no
1 a8 R' L7 R6 o. I: ?- V- M) Ttrust-ok
- S; z! Z# y3 i3 v# ytrade-record-one-len;;trade-record-one的长度0 d' @, j8 _1 g0 I; X3 U) p* P6 T
]
( C0 r$ M2 D" a3 E/ y6 x
' {) D' @& @" e# ?0 u& X' Q4 T3 p;;setup procedure. T/ P) o0 ~3 j$ f( D
' } U, m7 M5 C. G/ A' r+ u% d4 t2 |
to setup( Q" c3 L: Q( y
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ca
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" i" K0 [4 H# N: }initialize-settings
9 G3 r/ _ _* G5 Y
/ W6 `; E0 |0 zcrt people [setup-turtles]+ t" l7 n* c& s4 f2 d
; _5 b2 }- z* q- S; V; O5 h- W
reset-timer9 t, c7 F$ @% f2 y# _
: q8 G$ K- m" U1 f! k! Epoll-class# L8 U {6 J( J7 d
) m+ K$ g' V5 z" A& @- W
setup-plots# q$ | c) e2 Z- C: c& b& j9 @
( }7 \" R, [9 ydo-plots5 `/ x/ E! @* G; K$ R
end& m7 y: A* M( O N9 [
+ q& b9 H3 b$ H$ Cto initialize-settings
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set global-reputation-list []) M2 ^; X/ B" R8 K6 i; U5 U# G
) c$ I4 `% R. ~& p7 ]. U1 f
set credibility-list n-values people [0.5]; \/ w- o( o+ u3 A
. d1 D/ W6 {' X0 {, {
set honest-service 0
Q8 Y2 f/ Z0 Y; j& c+ u! A# R
( Y* X, {. A- mset unhonest-service 0# C/ D7 |4 \7 n4 X
; N; o* k6 h( t* e# O. i9 Vset oscillation 0
% g& a- ~8 E5 @$ H: D) x2 h$ [
3 ]$ t y: f B5 o$ O7 a2 [set rand-dynamic 0. F8 P- ^+ z" g1 ^! G# O, i% D1 X
end, J5 J8 E7 H* f+ Y4 |! g. I0 T8 D" U. E* X
/ L" D( R3 p) {7 ^ C
to setup-turtles
8 i5 [1 O# g4 ^2 jset shape "person"0 H* D& t& {3 N3 T i* x
setxy random-xcor random-ycor
; Y8 u( K" G6 O1 bset trade-record-one []% \& x! [$ Y8 m; C# e
) m8 e: d( y; j' a+ F
set trade-record-all n-values people [(list (? + 1) 0 0)] ' j" }& F: Q% M8 P
6 z, k& R1 L8 t9 q: h0 }6 sset trade-record-current []
: C; }: F3 ^) L7 s n2 T$ h* Xset credibility-receive []1 x4 a$ C9 n9 E+ ~( Q
set local-reputation 0.5
2 o; m' E0 b& X6 F( c0 z; G. o$ ?# r8 v" Eset neighbor-total 0
( F. I# K2 Z# rset trade-times-total 0( v! \/ x! ]/ i1 m7 q. A
set trade-money-total 0, K, R6 G" J6 m& C/ b
set customer nobody0 V) d6 O: g! l* P" p) W* i
set credibility-all n-values people [creat-credibility]
5 S3 O+ e% C# I: z2 |set credibility n-values people [-1]1 @; J9 J7 M% _# P6 P
get-color" A% z9 O( }, A7 G, I: X
) t+ E: ~$ w5 I/ L; `9 Jend) {% b/ M! ~ ^1 D6 ^# _
3 b7 S2 N8 C2 {, t# g
to-report creat-credibility
$ b- S, ^/ U' C5 V- V/ ] ereport n-values people [0.5]+ |- R, X9 A; L- [! K3 g9 A
end
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to setup-plots& J9 c- ~4 B7 m3 s3 U, x; j
+ O5 D) `" W% G5 D' V- qset xmax 302 r/ v3 S: r" s8 P
: b6 b* i2 s0 D2 x5 R9 c5 r; X, B
set ymax 1.0" [2 I0 x3 i$ F' V4 @) z/ l
' R/ e0 b) }: l: B6 Xclear-all-plots& A/ W6 }; f: e1 m1 _* `$ n
( c6 {, B4 ?$ P) G% ^( h
setup-plot13 J- M% h& r* z6 ^
1 [+ k, u, G* ]: q' v9 \- {2 g: @
setup-plot29 ?- Y( ]; `2 @' ~3 _$ r- s; H
9 x9 Y% \3 @- u' ?0 Z: _9 ssetup-plot35 M+ j! A. C6 R- T
end
8 K O6 Y, p% S0 M* P" O
& j D e! u2 H+ d" k! q$ m;;run time procedures2 X" u9 Q* ^3 r4 I
( f+ j: t! {. ~& I: J# X7 ]& C9 R5 jto go
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' M G, u) S1 \/ v( h6 Y- K+ Wask turtles [do-business] o1 V& ~& Z- G. j+ R- S
end; c1 f( E2 p5 a) P/ c! [
; F3 K% v2 a" [9 r; J: U: l: lto do-business 2 o3 W* {, A; K# o6 S( H( B
" C p+ M& h. ]
# \3 E% Q) \0 _1 b/ K& {7 @% Crt random 360
% ~0 a# w' z" Y# h: A2 Z: ]! K5 M" p3 K
fd 1$ C& l5 Q/ z2 |1 |
K9 _0 x! W6 _ifelse(other turtles-here != nobody)[
/ A h, I. c& J/ y* W; C% m8 o7 b1 X
set customer one-of other turtles-here; w7 ?: ~8 z, }# `, z, l: G
F' r( E' O# {) j4 [1 g9 I9 h
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
) s3 B6 \3 l6 c8 N% F" g$ Z5 A[trade-record-all]of self3 E1 F: y; _( p) d
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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# \" h$ F! ^5 E1 Eset [trade-record-one] of customer item (([who] of self) - 1)
6 @4 W3 O* i% C# V. V+ b$ L[trade-record-all]of customer/ Z F4 Q! x4 j& j
/ K: T" ~ T3 {
set [trade-record-one-len] of self length [trade-record-one] of self6 C7 L, c( o' `& [" f! x
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]$ v# Z" R6 _' v g* o. {+ H
;;先求i对j的信任度8 i2 L* U0 p' ?* M) _8 i" c
+ C5 X8 Y# r6 I" i. Kif ([trust-ok] of self)
7 ] f6 ~4 @/ a$ }( g7 L5 ~;;根据i对j的信任度来决定是否与j进行交易[6 u4 d( x4 ^% ^- B
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( m9 M6 c$ R, [$ V- ^
" v' s ^ x0 V( r$ b[ v! G2 }7 o/ M; ]/ k' {, o
0 c% I5 `) }( e7 L6 `* b
do-trade# Y5 S( L W) c
$ g/ W) d; N2 w# X5 l7 y6 P7 b2 ]
update-credibility-ijl3 M. ?! I8 N6 C8 E! F
0 w. Q) M; F& ]4 oupdate-credibility-list6 B; x7 u2 L8 p/ Z
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update-global-reputation-list
3 `1 y& {% y! E2 ?8 C
1 K6 l' \) b/ N" d% N: V, w& Lpoll-class
3 a$ o/ @9 i& j+ ~7 J+ m; g; }
9 I, Z T' ~" I9 O% K2 Nget-color
2 i2 O3 @$ h' ~: @3 O
% _2 W) G7 Y/ o9 H' ^4 y]]7 |- K* B# S( J; S
* ]# K- k6 h+ @' @0 F: \7 E- g;;如果所得的信任度满足条件,则进行交易- {% o4 ]) \/ ~9 Q1 Z
0 s, g3 v$ v# t4 m9 o: I( k# U: w[
9 F7 a4 M- I* i# f X3 @0 n5 U" [: D, }
rt random 360
^5 ~3 A( l" o/ T9 w0 n/ S+ x F# [
fd 1+ ?* n2 r- n2 v7 Q- j) q \) j9 m K
_8 ]/ D5 Q& h4 ]], u$ ] D8 G2 L/ e/ t
6 N+ W3 s& [$ E. O, {4 ~/ Vend; W+ q3 x3 q4 k6 V# D
% z3 n& f' O# r* I3 c8 v _+ w8 D* q" Cto do-trust
! m! ?/ W! i j4 c! z- [! L& ~set trust-ok False8 M4 f& L1 W* N$ M4 Q
0 j" J _: s5 y/ C) A( B6 G( y+ y# ~" S
let max-trade-times 0" R z j/ \/ X5 E Y+ W5 u' e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) L3 M6 ]' j0 I" a4 c3 r$ a
let max-trade-money 0$ F3 M W& V7 ?% s% w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 K, Y4 X4 a, X' a, T2 l) J8 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)). A, O* e3 e( S$ i" S
g2 Z# p/ y' F- t5 X0 G9 ?% ]; L! W) L C: ^7 A
get-global-proportion
; h s. w* S# E% h Tlet trust-value. g* F) w; P- h2 ~% o
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)
) S+ r" B' N2 [4 |if(trust-value > trade-trust-value)
; W0 d7 ^- N! F* J9 V$ c& a[set trust-ok true]" W8 K1 c& N8 F! K
end, E" g6 Y% x$ |2 @1 `
; p Q9 N! A* n$ u
to get-global-proportion
4 K. r# t( l- {/ [, ~9 jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)$ ~, L* l Q- d* d' |/ }/ I
[set global-proportion 0], T; p) b6 O/ C& k7 V* E. s
[let i 0
4 e" T! }" a6 P( `let sum-money 0$ j. I7 y+ y2 n5 l: F5 S8 `
while[ i < people]
. P' w% Z8 g( Q! O5 @1 P[
5 v% G U$ K0 v7 Kif( length (item i
0 W p- m2 @0 n4 B2 V[trade-record-all] of customer) > 3 )
- a1 d& L+ ]* C; x5 e) o0 q[% g4 P7 e. i0 v) K9 t# q3 j
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 M1 M( m; `1 `) ]; ^]0 e. v5 x% K" x" j7 R
]
: I3 g: {$ Q8 C/ i$ Y8 f/ e4 Tlet j 0' t- k9 U1 C' H2 o- ]! M
let note 0) X5 Z' ~( h9 |3 R% n% S4 M
while[ j < people]
' e4 d: ]1 ^; m. D4 C[
; a& S% t; G, m) z: X& |& z* ~if( length (item i1 T$ i# {& m, k5 f1 j4 ^) u
[trade-record-all] of customer) > 3 )! G- U5 h2 a' F: q" p8 Y
[: I* U, |- C$ f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# V( {# L2 r1 j8 F9 a
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 i; m) n7 ?: t; i
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; n3 c; r; w2 j. P& M2 }; b( u: W]
/ L |3 D0 o) F- }' W! O]
# @ ?/ d6 C1 ^& V: rset global-proportion note; w2 V+ c/ K3 g4 O) s- t* I
]; ?! L+ a$ q9 P. Z* a* y
end. s2 W) o! d* I/ @% |* x
7 A; d- O* P" ^; nto do-trade
. N& f) j$ F* b' i8 P;;这个过程实际上是给双方作出评价的过程
9 Y, t2 f* w& K {, ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, p( H; C) F0 `: ]9 m" v9 V% t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% c1 S8 S( @1 ~
set trade-record-current lput(timer) trade-record-current3 p G3 U9 b8 C" \6 ]$ { X
;;评价时间) w" @& e7 x( L+ ~# d* g
ask myself [) p- c0 B' o1 r% a/ D* ^5 @
update-local-reputation" Z' T( b7 M7 S( q. ^
set trade-record-current lput([local-reputation] of myself) trade-record-current- A2 Y, s7 n, ?2 W" h+ N, ]
]
+ @# M. N% Y. h) D0 l: fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% m- L9 w& Y; K0 c2 N
;;将此次交易的记录加入到trade-record-one中
* b8 E+ c; q1 W1 Rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- n8 K$ `' R+ K
let note (item 2 trade-record-current )
7 D0 h$ \: b5 U$ q+ Aset trade-record-current3 C n {- f: [" M. a: ?7 l
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 X% v& P) K! B7 |5 }+ pset trade-record-current. W8 |2 b" F# y- R. _
(replace-item 3 trade-record-current note)
6 q' h4 C$ @% g/ G. z( Z* O0 R0 q5 T3 \9 f( Q7 \; V. ~' i
7 z( p* x8 g" G& w
ask customer [
6 x6 C. s$ _' I B8 s& qupdate-local-reputation' h1 b+ k' g' \. l
set trade-record-current0 g7 M+ D. k) ]8 |; X
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 g+ E& L: K7 O" m/ {4 f/ Z
]# \& @% S5 `# b& `# z' g# B2 r
4 b1 d; ] d; a: @ m" F
* A( a4 E: \3 G1 o. bset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* [7 h/ l0 d7 ]$ J' t8 }
7 h; f! N7 X. @. I
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 ~/ |2 X) b; I* U/ Z;;将此次交易的记录加入到customer的trade-record-all中
* }* W) _/ G! _end. } p5 X5 {; U G* {& a
3 b4 c5 I) I$ x2 cto update-local-reputation
1 u ^% E' |: n; z! P2 o: Aset [trade-record-one-len] of myself length [trade-record-one] of myself
1 w) a+ O' z' W/ |
0 V1 n3 Z0 z$ R& d, T
% W" L+ q* m1 H" `- w;;if [trade-record-one-len] of myself > 3
. Y+ ~- J* ^! j& |% @; Lupdate-neighbor-total! C2 e0 ?% h, i4 q0 @/ a
;;更新邻居节点的数目,在此进行" [- D& @7 y* f6 Z- v
let i 3+ P4 }3 r, n4 [+ T& p/ L
let sum-time 02 V+ }- g8 x9 g. Y0 f
while[i < [trade-record-one-len] of myself]* d, P* s8 c: e: \
[1 i9 \5 @: o _# Z' G1 C
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; i: L; _& Q; Jset i
/ K2 N/ o) y% y4 g' l( i + 1)
: M# k- ?8 A3 a, q, F! Y]
3 q6 L+ e' } F/ dlet j 3' z- [/ f& H) B( m& w3 A
let sum-money 0 E" q. y& ~5 L5 { j7 E
while[j < [trade-record-one-len] of myself]
G4 B$ P# o) }% F+ z[/ N; \7 k, T: W0 c* L0 V) g
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)
- a5 f8 Q$ N$ u/ ^# y4 |8 E+ z3 E( Vset j/ Y2 z: Y7 ^3 m! X9 a
( j + 1)! ~7 C3 ^0 {2 i$ h+ D. e# W
]- O' U* I2 X& }) K, R( k3 v
let k 3
& _8 Z3 {& c5 x* ?6 \# N0 c# alet power 0* Y, l4 ~+ T5 d* h8 ^1 ~ S# Y
let local 0
3 C3 l' Q0 F9 J: i) Vwhile [k <[trade-record-one-len] of myself]$ g- J% V; x' {' p2 b* x
[
+ D* h5 J$ i4 T% q+ [( _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)
! n" U. q3 t( s; i# E0 w! n8 kset k (k + 1)- H1 L+ Y2 J J6 ` C/ j: e1 D L
]( \& f, ?: {; [. B7 m: Y9 g: z
set [local-reputation] of myself (local)
) P! z( h2 {) Y$ d& Q) ~: Xend
' [+ ~4 u$ r( v. g% ]) _) q& m) [/ N. G+ r
to update-neighbor-total
$ ~8 h: a: Z) @/ |, J% ~& f' k7 l6 G6 Z5 k7 E! J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 h4 f0 U! z# i) a' Z" ]9 u1 P/ p( t9 b# J3 H
, Y. D( s6 Q( `7 {2 X
end! V- }$ B1 Q2 @( u% }
7 `' m- f$ K1 z" U5 j) [to update-credibility-ijl % f2 N' K, r& `& e
; F1 t% P& o+ l' V. \" F2 L;;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。( ?! y) M! u* S7 y# }7 q5 K2 `- w. C
let l 0/ e) B/ N+ N6 a1 i1 g
while[ l < people ]
* w, ~: P _* c2 P;;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
3 |* g$ K/ r$ j& g; a) G[
' |0 m; z8 L1 Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer), x7 U% U0 S; M2 P6 }
if (trade-record-one-j-l-len > 3), H; Y' R% e5 S5 {) {& B6 [
[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% X4 P* t7 M6 ?! e n
let i 3
% k% N, V6 K% t; B. c2 Hlet sum-time 0
% L; Q3 J' i: `, b$ F: V8 `4 qwhile[i < trade-record-one-len]
: j* r( l$ O5 E8 N9 \# H[7 `9 c$ Q, H8 R( R' x: Q4 A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), R/ k! X+ w- J7 I. d5 ?' }
set i0 A) \) ^: @0 \0 _
( i + 1)- N3 c8 ^: o2 }# d/ Y
]. \: h4 T1 Q7 j/ ~
let credibility-i-j-l 0
) W0 ^% K2 J2 I! l$ k& [$ f;;i评价(j对jl的评价)8 R, a5 |, ?. P" v3 _. ^9 `5 F
let j 38 f. W/ E J: O. C5 C, [3 M5 |
let k 4
/ X. x8 k9 Z, }9 |; |! Gwhile[j < trade-record-one-len]- I A' W$ J3 M% g" b; Z% c8 V
[$ h2 n7 A- K S4 C
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
8 |: f, ~. H7 ^# hset 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)
( c# |, Q; d- R7 ?, d7 m: y, Oset j
" \, R+ x2 D& {# W6 S) e* Q( j + 1)
2 c* `* h8 R) Y( A* ?8 k |; q]0 J& g, @3 [; C1 S5 {7 }
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 ))
% B! Q( h3 n3 t
% p* C I b/ V2 Q, z5 X
- ]. Q( X0 w( Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 P, ^( | |' D& O4 k3 L
;;及时更新i对l的评价质量的评价
: E7 Q3 G6 _# N& j1 vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' {* C( s2 k+ m/ _5 g
set l (l + 1)4 v0 K# H. _8 y1 T# Q( D
]
; w% b$ f! y6 n8 D$ i/ n2 N$ Y5 yend
" h1 `/ t8 z- v/ b- J" M
- ~3 D4 h8 s3 F3 i* n: Wto update-credibility-list* K+ p0 u) D& f
let i 0
' b E+ B% U, n m( N' L6 C. awhile[i < people]
. a4 e: E1 l' x[
. M# ~. k9 `! z6 x( G/ Glet j 08 {& ? m1 F, s
let note 0
2 g0 q- V; x1 H# a& b8 d$ N5 Wlet k 0
7 K& W, w' \7 c;;计作出过评价的邻居节点的数目& T: e; [# a F) b& k) d
while[j < people]
" e8 G* ~2 X/ Z[
9 H/ u! n3 z* |3 Z/ t2 xif (item j( [credibility] of turtle (i + 1)) != -1)- p" ?; L o! `( i* w6 Z$ A5 k
;;判断是否给本turtle的评价质量做出过评价的节点' ^) J) A2 C6 w$ O# [
[set note (note + item j ([credibility]of turtle (i + 1)))- `1 Y2 Z, Y. Q' p) h( e0 q" Q
;;*(exp (-(people - 2)))/(people - 2))]; r6 O5 e- N \/ s) z' v8 P
set k (k + 1)* ]/ w3 e% o) j0 b- G
]/ V$ ?' t8 g# z5 Y* |
set j (j + 1). c2 E& E: } [
]
; z( v @* m8 ~- }' e+ |+ ]9 a+ Aset note (note *(exp (- (1 / k)))/ k)$ J1 x. _+ |- N1 L* A* G" t m* G% V. @
set credibility-list (replace-item i credibility-list note)* k7 F+ r/ r0 q# c
set i (i + 1)/ w8 ~3 k# J& Q# y4 f( C
]
/ D0 U% Z+ ]# p6 cend
6 N1 `/ d, w% ?' e1 e5 ? Q& R. G4 N& m$ g
to update-global-reputation-list9 S& M6 G: [. M' `+ B" y$ M, [. F
let j 0
! Y+ C' Q4 D& c+ b7 Q; s) u# _while[j < people]
3 T& C# m; q7 Y, w( J; m[
% Y! [: K$ I. F C* ]6 j$ olet new 0
+ l$ u) U2 G; \" e) w, z6 a;;暂存新的一个全局声誉
; I- {# c" F1 ] u2 olet i 0; U3 d; r' p8 _8 y& e* `
let sum-money 0
) {1 z% u' m) G$ \' Q& Y, F/ zlet credibility-money 0
9 J* B" a5 t, B6 P; N" Z- jwhile [i < people]1 \1 A* [9 O5 o' t8 M
[$ `8 O) n+ b5 l, ~9 S6 s4 X
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& f. `$ I0 D5 h: R# W5 a& M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! R* q! _/ D- b6 R- f' c0 F2 r
set i (i + 1)" s" G w1 p, @" c
]
4 t% t( j$ R2 {+ X* T/ I4 D6 blet k 01 D+ W0 P, m) [- I$ i* [
let new1 0# g2 Z& y$ i7 e. @ {
while [k < people]: o$ P" X* x# H, j
[- G8 w* I3 `. L; w" G0 P
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)
4 h+ }, b" U l* a& k( q {set k (k + 1)
9 m" N/ y! @- a( Z) J$ V# ?! T], g$ F2 G0 w [
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / P f* Z- U: V
set global-reputation-list (replace-item j global-reputation-list new)' P6 k4 V S0 m! n) |: }( P$ ^# E
set j (j + 1)
4 D* ]7 A8 T: j* B# ?; Q+ B2 ~]: P5 K G9 C# L; }/ }8 _* W; E
end# \) H/ l& O: J$ Y9 }+ D
7 P5 q5 L9 G/ W8 l1 b& F3 z; Q' ^: E0 p8 N+ w9 U
; h4 R! M6 C O- c
to get-color
6 C, m7 u' G" F' c* m9 g0 D# U4 u4 f5 k1 W" _
set color blue6 O- @) E; @6 B' N/ Y. b2 q
end
0 E$ U) ^0 Y# S& W: ?
' |* ]3 O, U% F4 Bto poll-class t- y9 i, P! N! v* v g, f
end2 n; u# u, P: l& P) N$ S9 ?1 t
$ [- X7 s3 e; @# C0 i( yto setup-plot1
: \2 B/ K4 s9 c0 k2 D% [3 t/ ^
+ x. z: w) ^; l6 v3 o1 q: mset-current-plot "Trends-of-Local-reputation"
# N i+ O/ E# c: J( I& D
* j8 P2 _8 v& D+ bset-plot-x-range 0 xmax9 C: E- R7 Z _, |
$ c2 s5 K# r+ X. mset-plot-y-range 0.0 ymax
' {" s1 U1 V8 u) Lend* q+ z, g* u0 o
' h: m, C9 A* O) |- E9 P- \0 gto setup-plot2. Y+ T; U; \1 t% f8 a/ O
0 Q0 t7 ^6 y8 k% d
set-current-plot "Trends-of-global-reputation"7 |" X$ G' n) U
4 w r* R0 n \3 j( J/ b
set-plot-x-range 0 xmax; [: e/ i4 F5 r' `% c: `
& u; a% ]& P0 s# ~9 w! @- M, c
set-plot-y-range 0.0 ymax
, V- v4 U3 g$ O) Y3 D `! U3 k# W! Vend
- I4 a1 ?, x1 N, v; G; S! p
! [7 Q9 n1 t8 r0 Rto setup-plot3
. e* j; w: {0 }0 ?/ u1 j' A% E
7 H: \0 L2 S4 x. c& ]& Hset-current-plot "Trends-of-credibility"
, c9 B$ }2 M/ Z1 _0 C8 Z1 n8 x& e8 O# Q
set-plot-x-range 0 xmax3 K/ l% `+ C. z
& t, B/ n3 ]" I5 T
set-plot-y-range 0.0 ymax! Y* L& l5 {3 b2 W
end
/ x7 V# g7 ]- H& c6 {2 l& L1 l' _5 v/ v9 {& ]" E. E
to do-plots
3 m5 ?8 n: ~5 nset-current-plot "Trends-of-Local-reputation"
9 W$ J3 h. F# B# M4 ]; vset-current-plot-pen "Honest service"- y- R/ b: {) Y
end
* } \/ s5 V5 X4 Q+ o( R% V. Q
]5 S7 F% X4 G# C[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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