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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 S" Y' `# a z: e* p. C
globals[& o7 c/ } u W( v) T: o9 h% F* _$ u2 G
xmax
% o$ s/ v( W- `: D5 A2 Zymax) Q5 d4 R7 P1 ?9 n
global-reputation-list" n9 r* y. q- r L
6 \" |5 r" N3 w! U6 i8 y1 O4 X;;每一个turtle的全局声誉都存在此LIST中
$ T1 K# g* m3 A* G/ b& Fcredibility-list
2 \- t% k9 j3 {;;每一个turtle的评价可信度
$ N1 K; v& l6 Ohonest-service' \! l! X; o. x9 Y
unhonest-service/ x& C% v/ C* T
oscillation
8 r( e! ^9 C! V9 C$ n) v! t* l2 x3 frand-dynamic
# D% i7 t3 k/ l' s! ^3 r]; D) E! n. K7 z7 Q. |
/ ?* N7 c6 a. B, }- k( L/ dturtles-own[9 t/ [! J- u' D6 q* @
trade-record-all
7 s9 F/ e" N& B" n3 G7 ~/ ~! E;;a list of lists,由trade-record-one组成
6 b6 c7 q+ u1 b+ W0 e8 ~trade-record-one
" r j( U8 ]4 x X8 {;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 {, i$ S2 g2 e8 t) Q. s, _3 C! O( C6 T2 q& @3 Y- o
;;[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]]5 a7 h* n9 ~! ^
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]
# B- u% I9 R6 Q, r) K5 p( 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list1 u) y2 G( i6 Q
neighbor-total
! X5 b! V, r7 i;;记录该turtle的邻居节点的数目
& a) b% ]& ~* z- dtrade-time
% P# i. i4 g9 {3 T" ]0 p4 s& g;;当前发生交易的turtle的交易时间: [5 Y1 F0 F6 S. A( F- S/ N
appraise-give
S$ n% Z) f/ [5 g4 B) @* |% t; R;;当前发生交易时给出的评价
. r2 O) }( ^/ S3 O, rappraise-receive4 R! r6 }; K4 ^4 |5 Q. f1 `1 E( }& C
;;当前发生交易时收到的评价
# k7 v( w* z5 E8 uappraise-time9 Q- ?0 h; m$ c. F. [
;;当前发生交易时的评价时间4 j/ Z) T' i0 ~- H4 @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* _) U2 ^7 y# P+ ~0 R
trade-times-total
% W$ U3 ?0 q+ D9 K# l# f3 Z! m;;与当前turtle的交易总次数
1 J# q Y3 r6 U) ^* _3 {! d5 Gtrade-money-total
: x* H6 \; Z, F" d/ M;;与当前turtle的交易总金额& q( Z: C" S5 ^, X! B' A
local-reputation& N# g$ G9 U$ m' p! k3 x
global-reputation# n6 J) Z4 c7 X6 r1 q1 t
credibility
% R3 [& E( [) x;;评价可信度,每次交易后都需要更新+ n, }, D2 I& ]0 [9 U$ g
credibility-all
* e8 h: w4 K7 `5 v! _5 ~( 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
5 C% Z9 A2 ^- P7 x* U' H% C8 W9 F( G$ Z- w
;;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
& K# a K! m. Tcredibility-one
2 T# i/ H2 R/ O. ^, {7 m1 x. r };;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
3 s5 \) _. P5 k9 s. N! xglobal-proportion5 v( {# z7 ^' P7 Z$ |" X
customer
8 s) N4 b" g! \# ^7 ~) z& Y6 s" {customer-no' v5 A3 p9 G$ r6 {& S
trust-ok7 h# F. `" S) c. b, v4 f4 n
trade-record-one-len;;trade-record-one的长度+ B8 ?; c. a+ L( s/ m4 K D% a: E
]
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2 S. e. a9 I1 t3 v3 E;;setup procedure- \# s# C* C% l2 }( V
4 Q y$ f% P6 I2 v
to setup
5 N8 [( \5 p, Q; Z+ Y$ G/ |5 {: Y) C9 o9 {9 z- I7 p. n* m) g
ca
/ S5 C4 e7 H2 U* j( m
$ v- Z+ z4 ]( c# d4 _: c' g# y9 Pinitialize-settings
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crt people [setup-turtles]2 K9 a2 L. J3 e
% u' j, I, Z1 n2 T
reset-timer7 T( B8 L0 b r$ r7 g: F+ k: G' L
/ b D3 S' g7 C7 F, f7 ~
poll-class8 _) b" B) \8 Q. j, }
% a; n) A x2 w M/ X3 A0 W5 s3 }setup-plots3 P& Y5 B% E; m6 B0 p. O. s7 p# j, v
, p( F7 h4 x5 W% q: a
do-plots6 T% C" m( J7 p; f: ?4 w# k
end1 g& o$ Z' j; B/ h" s2 [0 t9 k* y
( i9 n! ?: M7 M! |5 u1 C, [to initialize-settings$ y* O0 k. Z4 ] C2 N* N/ _- Y: `5 k3 O
8 V8 a- q. ?& ]9 U4 [! d8 T
set global-reputation-list []$ D s9 M; M3 v4 a
7 A7 Z. S" u* N$ x. R7 ~8 l$ L" g. kset credibility-list n-values people [0.5]4 R" _+ g6 g8 w& Z- E
! N/ q1 J1 }# S( L: f( u: H' W
set honest-service 06 j S+ _) V* j8 _. S& ~
; T4 e0 R" i, S9 v/ ]7 l, U iset unhonest-service 0
4 u6 B4 l9 N) O7 d* v$ ^( ^: A- | _6 `; V% S' |* M* M
set oscillation 0
" I/ @" z1 n) q/ }6 M4 Y) i$ p# ?
6 p9 ~" U- x! J5 _$ F+ f' iset rand-dynamic 0
& `" {8 a- G) m+ z, _end% g0 J1 `" u7 h& u
$ w' O% y2 m# z7 q# e' ]; Z( b
to setup-turtles , ?& }) d/ w2 ~/ K* D( }" H* C
set shape "person"
4 v ~) |% `, O. a7 H( ]# Isetxy random-xcor random-ycor& N9 f7 f3 X/ G( ?- x
set trade-record-one []
4 D5 w( P1 G* O" |! g+ ~ }2 E( B* |+ W! N
set trade-record-all n-values people [(list (? + 1) 0 0)]
" ]/ q, j3 x3 @2 h
# g! ^3 R* q9 c# O5 L! _set trade-record-current []
% l$ b8 ?2 f, W% X3 Uset credibility-receive []
) K! {$ V0 v f2 z" z" f0 N5 Aset local-reputation 0.54 f0 l" w8 J2 ? y9 [
set neighbor-total 0
5 \' {/ N9 R6 G1 m- aset trade-times-total 00 v6 |8 W, u; z+ _4 q4 r" r
set trade-money-total 0& z% h$ V4 `3 m3 u; @, Z
set customer nobody
2 M+ @1 n* [, j/ S+ d! |5 `: sset credibility-all n-values people [creat-credibility]
' t; u# v0 M) u8 f/ g' }set credibility n-values people [-1]
, q$ d; s: Q# w7 yget-color- z0 O+ s+ T' b( {3 O# T4 M
4 e- v9 K( j' v( F' k9 Vend3 M$ ] c( ~; ~3 g2 Y
9 r0 D5 {+ {( G1 ?1 a, X8 kto-report creat-credibility" x% i: `7 z+ }
report n-values people [0.5]* P6 O- E2 R# B# ?1 a
end
p" T6 _- ]8 |% O( b! ^, E0 v' V+ P. B" X7 `
to setup-plots- A4 u' x8 ~+ M3 C
* U! l9 G. n+ Y5 G' K2 J+ q
set xmax 30; d% T( Q$ D! k
- \5 w5 f$ u8 e( j* u! a' h) k0 c
set ymax 1.0
( c! e& u$ I+ ^9 B8 y" `
* [# g# q4 r* | m: k# jclear-all-plots" |+ ^5 ]3 l/ t- A; j
! ~0 M9 E. G% ^4 X# t! isetup-plot1" f8 P4 x# [+ T9 X5 P: o
8 M/ Z. O5 b) h; p! l2 j2 k
setup-plot2
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7 f. r, b( y' R' D# j$ j1 Csetup-plot3
& ]0 K, ?) B* m3 B; \$ Gend0 j* R5 Y& m3 i
% H3 V: f0 R5 h! ?; G;;run time procedures8 M0 S6 g) w1 _, M/ m( ] {. ~9 J
8 j E4 }. l, W) z8 }' m% Cto go, b: X1 y, |* ]; C* W
+ k3 A+ A& G; m& B$ c
ask turtles [do-business]
+ M8 ]2 r9 G! H) |end1 [- h# [: g# ^4 c+ Z: [
( V6 V3 e5 C, m$ Z) v9 Sto do-business $ }5 X5 v" \- F" u1 e1 r/ J
, C" a$ z. O' }6 o8 V
8 r& {& ]7 [$ n8 lrt random 360
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) d' p" r5 e: I1 lfd 1
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ifelse(other turtles-here != nobody)[! R" i9 j! h5 E/ D& z8 s" }
( a- y5 d) [; T+ n2 X9 N: W& {
set customer one-of other turtles-here
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;; set [customer] of customer myself0 Q. b" J5 o2 o
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set [trade-record-one] of self item (([who] of customer) - 1)5 |- g) D% |6 E( z; ~+ l' J
[trade-record-all]of self- Q7 r" Q( O; a7 ^+ w
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 u9 A4 _" H. v: U$ Y
4 A* Y, F+ B& `8 w, |set [trade-record-one] of customer item (([who] of self) - 1)
! T% H7 ?0 L( o* r( E$ c; A; H[trade-record-all]of customer
& F8 {# O9 d( }
/ R4 a8 z1 E. M7 K9 o2 v! b2 fset [trade-record-one-len] of self length [trade-record-one] of self. m% z: A f$ f" W# f T' c
+ j/ [5 E+ {3 ^# U) K+ Q/ gset trade-record-current( list (timer) (random money-upper-limit))
: {2 x9 i" A! m" Y2 f! N( r
1 p" ?5 c# z: e4 O: F/ Uask self [do-trust]7 W! ?# L# y9 Y# q; L
;;先求i对j的信任度 c6 M+ m; O. r- l* Y
, J0 w8 w- n, U$ o8 A
if ([trust-ok] of self)
" D- s2 [# Y b! r# y# E;;根据i对j的信任度来决定是否与j进行交易[: g R. b% v( h$ Y2 j" C0 u
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 f8 V' i% b6 V5 v6 c
! m7 e x' O9 X
[% d9 F! ^( ~' H' T& u9 ~" t; J
& h# f% Z3 Y# x9 q
do-trade3 ~# L3 z) m6 u) _
, ^( ]! s3 R9 x1 a( r/ ?1 [update-credibility-ijl5 L: B; D3 D* X
5 [* A9 i$ B0 L- o
update-credibility-list
& T @. r5 I- x$ x F4 i( J
) J$ }) S* o2 w) l/ D( b/ p! m. R y, [6 [9 }" p2 n u$ B z
update-global-reputation-list
# L* k* \: \, d3 P7 s% T3 i
# x9 G5 M; s( u @1 o. wpoll-class$ A9 [6 C3 Y+ j6 G. m7 G+ S/ g' r
& a' I. q6 N8 w' q, v
get-color$ ?2 t0 R! V( A1 q
3 O5 \, g. H# i$ b/ v, k
]]& E5 ^1 E3 F" r O
* M2 V" F5 ~' H4 _+ f& l2 E
;;如果所得的信任度满足条件,则进行交易( g$ o! K6 b& S( X( A+ \! D
' U6 o" E) V& ~- L5 i1 g
[
1 q, a0 R: ]0 X6 x- i6 G7 A- f8 ~! q! l4 x M
rt random 360
! p# D0 x1 D- P- s/ u
) i# C: }) ?( K1 O4 S2 D& `* `: Vfd 1
) n* U% i% I+ N
$ t! m/ F% k4 s) ^/ Y8 q! X B]
$ j! k9 J- b2 L/ S( B; w6 F* v
5 F% S, | `2 R6 ]2 Y( ]2 g. Cend2 `% X: @8 G$ b9 P; d
- j% r5 A2 m* }9 ~" ?5 ~6 P' k
to do-trust 9 w" h" f" @! V+ S- h0 T
set trust-ok False2 Y8 d% `$ x2 u# L7 R+ F
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; ]& x' K# h3 d, E4 Y" A
let max-trade-times 04 j& M! N# d3 h+ Z: ~3 N, H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
N! O8 e: I" X& q1 hlet max-trade-money 0
& t& i: O' M2 E1 v0 Y4 kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 q) w9 d! ]( C# Q# v& Ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
8 ?8 ^7 R5 g0 `
3 D1 \4 L9 d; o9 ^$ d9 t: W& d3 e" T; w
get-global-proportion
$ G% R& s0 d n4 ]let trust-value: I' {$ }6 {2 Q' V( u4 u
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)
. N8 w, `0 u$ f9 ?8 i7 u7 C& }if(trust-value > trade-trust-value)' ~- i/ n l8 O# O& m. O( u
[set trust-ok true]! b+ r6 K- F& D0 c
end
, P/ l- o1 f& G8 K
n2 q6 x1 N$ Z, ?# Jto get-global-proportion* ~( T u% l0 @- K! q3 I
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 B3 l3 h i {[set global-proportion 0]
& v4 R+ W g2 w6 R C) R" w[let i 0
" ]9 A1 e! H$ w, ]/ ?, Jlet sum-money 0
, D0 ^3 R! J6 M0 V2 Z+ a" Zwhile[ i < people]
/ y: X, a" [! E C3 ?" e0 Z# T[$ S4 U2 ~# Q: @+ A/ I1 @
if( length (item i
2 ?6 a$ I2 ?' t" d' [# k[trade-record-all] of customer) > 3 )) d/ W3 e. c; o' m0 f: D
[
0 q( o% s9 ?& b6 L3 [4 B2 g0 Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 J; z6 n2 k" g) M]- T4 Q. {5 o/ \: }; ^
]
, [ g* k) |0 Z) }9 k9 a" hlet j 0
1 A, [5 `( l; G1 ]6 b# llet note 0
" |5 ]: h$ r% p0 k$ r& }2 N6 ywhile[ j < people]
% Y5 d9 a {7 D# `: }* E& y9 }6 H[
# m: t V$ R7 x- N& X+ I2 Eif( length (item i$ |$ ~/ q) y- f- f O; v: u: Q9 F
[trade-record-all] of customer) > 3 )
0 ^7 N, [3 ~8 N6 ?[8 w8 v M! p# W/ C) o
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ M/ O& L8 S6 l: c
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]$ m) y/ ?; o' \& ~+ [6 Q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) `5 C4 k v" ] Z7 g
]
0 d) B" y+ T) Q' E1 o& F- |" N0 I]: g, y1 |/ q0 X
set global-proportion note5 n+ z3 c2 ?( @' Z9 m; X6 K
]
: b" V* ]* Q4 nend
7 e8 v7 _: m4 H s# {6 B7 A5 u" t7 D
to do-trade, [ f1 R9 P- W4 h4 f
;;这个过程实际上是给双方作出评价的过程
9 {) O5 F$ ?4 h8 N4 p/ m6 d3 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: c3 o" [6 f8 Rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% I2 N) K! H0 J. m6 S& _ g" Dset trade-record-current lput(timer) trade-record-current
6 v3 C4 I( Z$ u, n2 X1 E;;评价时间
. {/ w1 q. X! V, C- L* I9 A# t9 O7 lask myself [3 @/ y) o* q' h2 v) d8 W
update-local-reputation
; O9 p) [2 z# h) rset trade-record-current lput([local-reputation] of myself) trade-record-current
8 L# g8 ]- @# D6 x+ w9 T2 b. {4 Y" w]* c9 _: G% Z" x' x& O; ?3 l
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 I- W- i2 s0 Q0 f1 H
;;将此次交易的记录加入到trade-record-one中
" e$ X* J0 A, n+ O9 hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 @. s- ^+ A5 n. W# m+ N! Llet note (item 2 trade-record-current )
4 m, H' J- ?- ?5 |/ ~3 Q& P I* u& gset trade-record-current
$ ?; U" h6 L8 Q& i; c(replace-item 2 trade-record-current (item 3 trade-record-current))
8 W- `/ J4 C% D: Q$ u# H4 z- I" A3 sset trade-record-current' p2 T3 n* ~* [# F- x+ n" q' @
(replace-item 3 trade-record-current note)
7 s$ p4 X t4 S* T. R) K8 n" y: o9 j. e( A
- m( Y9 Y. k* V+ o/ ] [ask customer [$ l( E: X2 T; G1 S d
update-local-reputation0 C/ R# V, |9 i5 q7 I; w1 E! S
set trade-record-current
% c3 i/ U7 ?5 X* Z0 y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ @6 H* ]1 [. A. v! X$ B( i]
; \" i" o( p3 E7 N2 M1 k, G( i% d$ _1 m
, M1 B. p1 W9 `' E; d- v' D
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
t, e$ v, `$ Z3 {" z2 p1 J& k9 ~" W
1 R |0 h" c( ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 ?+ A5 A4 T. m
;;将此次交易的记录加入到customer的trade-record-all中8 _ a3 x. V' P0 n# \
end
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to update-local-reputation8 _/ |. n# J" K% y3 ] h( l% o& P
set [trade-record-one-len] of myself length [trade-record-one] of myself
, ]; v# f9 ^1 t9 N% x/ s7 @, l# U# {; P/ w! \) h
5 v" d, A, I% q/ }. Y
;;if [trade-record-one-len] of myself > 3 ; ^% ]( C7 N3 Z9 \+ e
update-neighbor-total8 W8 |0 w" w( ^# M( L
;;更新邻居节点的数目,在此进行7 Y- k6 w o* X
let i 3# h0 o( J+ }7 o: D
let sum-time 0
9 `- [% m' D1 ^! Z5 ~1 rwhile[i < [trade-record-one-len] of myself]
+ @9 Q( r3 i; d! D! M& q$ T8 h[2 } k! e9 w; \* b* q# x3 F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 r: R2 k) ]/ X. [- s& V
set i
7 _/ D0 M& @/ H2 Z' K: o) y( i + 1), l5 w3 [9 C& \4 h5 D1 [( u# B2 B# T
]$ m2 r& O4 h. R1 Z/ U
let j 3
& I: Q4 N n, u) Glet sum-money 0
0 A0 Y$ F1 K, K6 }" n+ nwhile[j < [trade-record-one-len] of myself]
, t% q+ {5 D9 m- ^+ V. Q5 t9 D% f$ J5 w[
4 R6 t+ G8 `4 Vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)* k0 T: g7 F7 U3 N1 b7 N& U
set j2 j1 [8 T& f. u% d ~ k/ {
( j + 1), ?4 e3 a1 X# A' ^
]0 T K& N7 h! T% ?
let k 3
5 s; d, O! m+ @2 f! Y6 e; ~/ z" ?let power 0- U1 _% ` D; c" A! K1 Z( g
let local 08 w0 C# ^, `! d
while [k <[trade-record-one-len] of myself]0 m& E, f" _5 A* p# o( e
[
" P, ?" x9 ]" Y) J" K1 O8 A* ?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)
0 d- O* w& k+ @+ `set k (k + 1)/ e) J, M& O2 f! j
]; {6 A5 V5 H1 @: E0 k) ^
set [local-reputation] of myself (local)
8 x3 m4 q" {$ P1 ~( p- W: h( qend, H7 @* A2 N3 j
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to update-neighbor-total
8 |- Z' ?* W+ e5 X! E# Y' v; k7 I4 k( V5 o+ E
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 c1 |5 Z# r' [8 [$ p3 K+ Y
; @( y" ^+ w: o5 q
. k2 ~% R$ Y4 S8 ?5 b+ F4 l4 J4 B: kend
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to update-credibility-ijl , b4 [9 J7 A; N6 Y* U
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;;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。
9 u. X: X9 K+ |- v! Dlet l 0
! v; `3 j+ l6 l! v% g* o" j/ uwhile[ l < people ]9 W; M5 ~* y; b3 b
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 U) y+ s" h4 q, A5 ~& i& |if (trade-record-one-j-l-len > 3)5 f5 W' S( _, s1 d9 v2 l: P; l' L
[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- a ~2 ~/ g1 P5 r4 B* k0 ?9 P+ V i
let i 3- _# U3 m1 P# p9 E
let sum-time 0
# \0 j6 {" e2 H+ ~- ]while[i < trade-record-one-len]7 a; Q8 O3 A* g! D0 d7 v
[$ ]- d' p' b& E8 h# {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 A3 W. ~9 c. }
set i6 ~% T! `" m% O' ^/ @2 t" }8 I9 `2 j/ U! N
( i + 1)# I. |0 n6 \, K: n4 u9 a, W
]+ J3 ^; u! _9 T$ w" q0 |
let credibility-i-j-l 0
; K5 E( n2 g/ j2 t! @% C! v# U;;i评价(j对jl的评价)
0 C0 `' Y2 F6 Alet j 3
4 @3 a& x9 K& i: r/ I5 dlet k 4
* B& @( b9 D; K3 y# r. i4 g% swhile[j < trade-record-one-len]0 N: c6 E$ Q0 F2 f' f( S: v
[1 `( d/ k- D9 D/ i3 E6 v- f1 G, f
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- N; Y3 F# S7 A* X! v8 E! 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): \6 _; U- A0 y# b# D! _3 Y
set j
! J! l+ Z6 n2 l7 [, Z4 B1 q( j + 1)8 _' S E9 ?" S
]1 K& i& { E! _! p: d, j" j2 i
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 ))
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( |7 ^1 a2 [; w) ]+ o- w5 D o) E2 J
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 D c8 [3 k \+ C! m ?: R' @2 P
;;及时更新i对l的评价质量的评价
/ \7 R4 x7 g+ ?' n' Dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 C, \" f% c8 V* C! b, X# T
set l (l + 1)
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5 h; `& T5 P; G7 N, jend! l5 m/ i* c0 r
: p: U9 U8 Y! u9 G* V" I" sto update-credibility-list
1 z% x2 l$ i) Y) Q U1 Dlet i 0
& ]- W D/ q, g) |8 n( Y3 a' p: b0 bwhile[i < people]
7 X7 A% `$ c/ A[
0 ?& s$ C6 j2 D* Ulet j 09 ? Y9 O. ?* ~
let note 0, o" c y# u1 [/ `( j! r+ s
let k 0
+ n/ d( W2 O/ F0 S;;计作出过评价的邻居节点的数目- r, W8 m- L9 U/ T' @% n
while[j < people]0 ]6 f0 o0 E+ p, w& J1 N
[
# u+ x4 G8 a$ z( U# {# J& fif (item j( [credibility] of turtle (i + 1)) != -1); i! ~1 C, C' a+ ~
;;判断是否给本turtle的评价质量做出过评价的节点5 w i; F) T: F) H$ ~5 Y; A9 Z
[set note (note + item j ([credibility]of turtle (i + 1)))
: k1 T, i2 G( L& G8 T;;*(exp (-(people - 2)))/(people - 2))]. E6 h0 o- O) q3 ~3 D9 ~( b
set k (k + 1)
! E. u( n& x) @]
3 j, _3 A, A& P, M' V; fset j (j + 1)
6 d6 a& G5 t) C0 R# Y( @]
* d8 T4 q$ v2 z* Kset note (note *(exp (- (1 / k)))/ k). N" e4 R3 K1 }, ~
set credibility-list (replace-item i credibility-list note)" o6 ?9 @! E# }3 q
set i (i + 1)! \# x9 V2 o' C9 v4 H' v) ?
]: N4 C q0 A3 U1 Y0 D
end5 [- x. T) D7 B' \5 c3 f
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to update-global-reputation-list7 r# C$ T* k3 l# n7 K
let j 0
+ k& ~ C8 D9 x6 k% awhile[j < people]
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let new 04 h! k1 `3 L& p% G( x
;;暂存新的一个全局声誉
8 _ n7 f7 \& o7 R) ~' Xlet i 0
4 F* z, L2 ?: ~let sum-money 0
" l; L* d/ P3 O. h6 ]let credibility-money 0
: j4 |- L# F/ d# ]* Q& P6 H0 k0 gwhile [i < people]
6 e1 X7 Q$ H+ S+ z[
W3 Z \: w( d" H6 qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' V% t5 G i& [4 J) ?set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! b& y% {+ ~) U' \# O& bset i (i + 1)
) y- R$ i- [6 D9 G6 X$ |. Q: @] f% [( }% a' f1 [2 Z* x" P! ?
let k 0
5 v: A& s9 K3 Alet new1 0
7 H# M$ n9 x/ |: e3 {6 B9 [ a% Mwhile [k < people]
8 A- V# i" l$ \9 D[8 V/ u) }% J; 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)
, I6 z$ ?$ e) g/ R; {set k (k + 1)
, d6 V0 a) }& p9 h1 q; `* s. o]7 ?& r$ e: l; r$ {. r7 m8 L
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + G) |) W }+ `1 K# r
set global-reputation-list (replace-item j global-reputation-list new)
( ?$ |; W4 I# G( k2 Yset j (j + 1)+ h9 p \& X; m
]
' S/ U" I, l& Kend! j/ ~- I' Z1 _! A
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& M5 _, u% I h
$ ?7 ~# r- u/ d: O, A' Q/ f* x
to get-color/ m; {8 o$ L/ e. w7 W* x
# D( j. ^, V4 S3 Y1 O# j
set color blue+ M3 Q. f/ e) G& K- W$ L+ H
end: T g$ _# n6 G; ^# F/ f& F
) U. b8 Z; p! r& X9 t$ _6 eto poll-class; M* q: c, I1 j; |0 ^) S" k) G# U
end
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4 m, U& S/ ^" V& t2 |& Cto setup-plot13 L5 r) p& L# [: ~/ i$ |4 \
" Q0 g, |2 w2 u1 x" e4 M- T6 \set-current-plot "Trends-of-Local-reputation"
1 }( F0 V9 g- Y$ G' P8 k8 D) b, `: |! V4 W
set-plot-x-range 0 xmax
" J# m) ^+ |8 Q% n0 `) }6 D) ^3 }4 v
set-plot-y-range 0.0 ymax
7 O! ]& w# _( e' e4 p( @end
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# s# d) a* P( a1 Z* \+ d& ?to setup-plot2+ {- J( U4 L6 X. m2 q/ j) b8 Z. p V3 v
# a% d# `: |3 M! _
set-current-plot "Trends-of-global-reputation"6 G! X3 _2 Q4 s/ y) r
0 `8 v) m$ I' l2 I3 r/ k0 w% D+ S# M; ~
set-plot-x-range 0 xmax3 C; }0 K( @$ w; _
, f5 L: C/ e' Z/ O9 V" U6 U' @$ Wset-plot-y-range 0.0 ymax, H6 d' M+ T: L5 M
end
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. k+ z j; }+ Qto setup-plot32 \# H( B7 B* O4 c/ `5 w* }, A
3 ^; W* J( ~$ J: i8 v" v7 ~: D
set-current-plot "Trends-of-credibility"
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8 }; ~2 S8 p5 x! `9 I8 q% M. Kset-plot-x-range 0 xmax
/ u# J4 Q, L7 j( q
% y' V* s3 C/ w& W$ J$ Nset-plot-y-range 0.0 ymax0 M, u5 H1 Q# t ]! g( O* @
end, u0 Y* Z( l6 b/ W. E
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to do-plots
: p/ I. |# a& e$ o& t! N) `set-current-plot "Trends-of-Local-reputation". t) ]$ o1 J5 I% q
set-current-plot-pen "Honest service"9 q8 s0 {+ V4 A& T
end
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1 V& x3 G+ f n7 V' m1 c; L7 P[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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