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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 Y2 C- [globals[# o. P" c* P3 B8 r) f$ ]' T
xmax4 @( s) {. \+ c6 d4 b
ymax) e. P1 D1 v4 X& E5 _ V( `9 t# T
global-reputation-list7 n/ H" q8 ^( c& p' F
! k j( U/ v( x: \; `) F
;;每一个turtle的全局声誉都存在此LIST中
5 m( {. j \& z; k8 x4 l0 gcredibility-list! F0 A8 J9 h* S) x& _& o3 Y# ^9 ~
;;每一个turtle的评价可信度0 q! R, u$ u4 U
honest-service
4 {% k# t: F U4 w: wunhonest-service0 L8 ~/ n; A! g* x* J7 M/ O' w
oscillation
) d4 j# I. d1 d) w+ w5 H5 h5 Qrand-dynamic
; Z# ?) J L$ `6 }]
+ J6 n3 L8 q/ U0 e6 D8 g
/ [4 k/ G$ S0 w& o1 \; u6 oturtles-own[3 F1 ]1 U% e& k% k6 ]4 m
trade-record-all# o' Y% P* ?/ E+ L- s d
;;a list of lists,由trade-record-one组成7 b/ e4 m: ]! \! R# M
trade-record-one
$ \$ k% l: V8 G/ U/ P;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* a% | m7 h- B9 Z' m" L- M4 v) }' a7 V3 Z" o, b/ `6 `5 ^ h
;;[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]]
+ ]# A5 N( F' O! }7 F/ ^: N+ rtrade-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 M0 ?: ], a8 F& d8 S- Qcredibility-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
' `* g+ U; s- F# Bneighbor-total8 z x4 q2 f* L4 ]
;;记录该turtle的邻居节点的数目' E9 i z. _$ Z8 P
trade-time
5 x( n. g8 P M! F* Y& @8 A% {;;当前发生交易的turtle的交易时间
' h0 Y5 r8 s2 S0 [0 h. ]3 ^4 q5 Zappraise-give) y' I3 F; v/ K# D8 a; d3 T j/ T, \
;;当前发生交易时给出的评价
$ _ ?+ l( g7 d' Yappraise-receive
0 ^- l9 X/ F2 c, e( i# I" y7 w;;当前发生交易时收到的评价
0 F% T0 G% ]+ \/ D) r8 wappraise-time; Z6 n3 z- o( s, q- s; H' |8 o4 V
;;当前发生交易时的评价时间4 J& F3 o2 s5 |" G1 p
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 a v' N- c1 c% G
trade-times-total
9 F% v7 M: z& i7 X% l- L6 e3 e8 V;;与当前turtle的交易总次数
! J2 v$ {8 m$ o$ G; P4 Utrade-money-total
* C) e+ F" `' m5 P;;与当前turtle的交易总金额
/ b; A/ Z8 X/ alocal-reputation
. b% c6 W. K5 |global-reputation# p4 Z0 C9 \9 P$ n/ y# V7 I
credibility; B+ a5 z/ j+ ~" c7 V5 q
;;评价可信度,每次交易后都需要更新
$ {0 ] q/ ]6 bcredibility-all+ S: a8 X& g4 k" N- ?7 U
;;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+ A. F" @8 |) s
6 i5 O# ?% H+ s3 g6 j
;;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( m0 f& Z# Z$ m: t n
credibility-one
7 A+ N+ j% p0 b: j;;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6 r( n8 W3 M! ^( B0 O; b; X
global-proportion1 e" ?( H2 x# X
customer/ y% l8 v0 K: J, z$ I o- J- E
customer-no- K4 M& R# J0 ?1 z) D
trust-ok
; D) |9 [6 j8 Utrade-record-one-len;;trade-record-one的长度! Y, g6 I. D. |( p% W1 p# Y# _
]
" |1 e- F7 P# h4 H/ Z
- N# s- |1 H! G* W0 w;;setup procedure" g! ?) ?: I7 ]+ Y% Q
+ n/ Y8 Z& @$ S0 |( i1 }$ R
to setup
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ca$ i4 T) Z" m1 z
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initialize-settings
' W3 M' z5 g( K$ X- n( X' k! P. e
, ?8 e0 q% g: s' P. L. lcrt people [setup-turtles]4 @' d6 j0 U/ Q8 L
, }- r9 M9 z, [. I( d/ f/ Oreset-timer
9 [2 i# D8 N; ?1 k" _1 G& Y0 r5 m, E+ ?7 b) \1 O r
poll-class
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( G* t. |7 v: C, `setup-plots7 {0 e. _. s$ s; h
9 c0 U1 D0 L7 m5 C( b9 }# w; H
do-plots
* @6 D3 X3 ^ s' J" w8 Yend
; K$ ?" v! _3 u* e& ]
- M& [* ^" `4 R2 J! F6 A5 tto initialize-settings
: U6 V& q9 e- I" I* }3 `8 l) u2 o; l
set global-reputation-list []" Z0 R, p3 d& }9 Z8 y) j, }
5 N/ K( X+ D6 w3 bset credibility-list n-values people [0.5]
, u7 b8 y) T7 H% ~7 G& Q/ O) u6 W
1 k1 n) E) x- [set honest-service 0
# X6 }9 n9 a8 a& j3 M% S" @ M3 ^8 z, S
set unhonest-service 0 \0 N' v, W; `2 g
. Q2 }. L2 l( sset oscillation 0
6 R2 ^4 W: T4 p0 Z5 z8 @3 A0 _
! X) ]% R6 E2 G' L; ?9 Jset rand-dynamic 0
6 S* I. I/ e0 Jend* z/ J+ n5 ?) Y" q- O
* c2 ?+ R" d, }& ^* Q
to setup-turtles $ T1 I1 Y: Y9 r% M# C
set shape "person"3 u \+ F/ ]! @- w( B; v. \0 n
setxy random-xcor random-ycor
; c3 R: |$ N+ [8 U4 P3 _set trade-record-one []! s% D- K9 {8 ^6 W
: o% e: y" ^& W
set trade-record-all n-values people [(list (? + 1) 0 0)] $ `) r1 {/ t! t6 t9 [2 n
' P+ J. ]4 a3 q" p8 E0 o
set trade-record-current []
+ o/ s9 [6 Q! Y6 tset credibility-receive []; m7 P* \1 f1 G# q0 A! t. k
set local-reputation 0.55 q, S* V u; D( t! r/ J
set neighbor-total 09 b1 q* K4 y: ~5 `) S7 E
set trade-times-total 02 v! K4 |) U& ?, D6 k/ r+ I# Z
set trade-money-total 0/ }( l/ C- j, A. U: a$ M# O
set customer nobody
1 }8 F- l2 s0 j' Lset credibility-all n-values people [creat-credibility]: R! G9 J4 b. F" s% X( f
set credibility n-values people [-1]( K1 b9 q- ~6 l7 p9 _ {3 B
get-color2 q1 g$ F/ f- P4 {! ]
6 m" H$ N3 O" P- Z4 j* i
end
5 S2 T0 S% u( I$ ~- u
! F: b, I( L" d3 e3 B( v5 |to-report creat-credibility
! o: ] {3 R& p* V6 O9 Areport n-values people [0.5]( Y& Y# K% x9 Z5 u
end/ c4 s# C. e- M4 b( q9 {4 a
* h" q- j1 H3 X- K" @6 u/ [
to setup-plots
+ u& k0 s" \1 M2 W' \" k' _1 D+ w5 N2 W9 r" g3 x0 b
set xmax 30
6 {+ v* ^ d! H+ c( i8 K/ h' w: v! }) o& U+ b& U+ o" [
set ymax 1.0
" V: \3 L# U: x2 f5 _1 Y' B* S, t% B) P, H- _; l
clear-all-plots5 Q4 [. x" ]# T/ e4 A
1 m& A0 o1 Z5 T2 R, w3 ^. bsetup-plot1
$ h$ N" X, y( c4 Z1 D7 Z2 E
) ?! @0 Z O+ a0 e- q- Ksetup-plot2
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setup-plot3. x4 v k7 E+ s5 E8 t8 x7 Q
end
$ p. _9 }" R0 r i, G9 X0 t
' D: ?7 k; q2 X; |;;run time procedures4 `, z$ i( U0 G% ^) a. ~0 o
; i5 m) S* ^( Pto go" y! @) g! p+ f! D4 s8 S
n1 H% c8 P" p7 T: F, C# R4 Fask turtles [do-business]
0 Z3 }: a3 T3 G' e- ~1 |- L" ~end
: `, R/ N' T0 Y9 n0 x: H! w5 {' y1 W9 N. S1 _, a: H2 Q) m
to do-business
j, c; ?( ~" g: N' V, i5 g2 ^4 g: ]& w: F3 |, e
7 o4 D, I% s4 _3 W) Nrt random 360
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/ ^7 b4 v% l7 z, j3 w( V7 I- M, zfd 1# v' Z4 [" N3 E$ F' I
" ^9 p& h0 w8 R9 \ifelse(other turtles-here != nobody)[
5 }1 _4 `; i- a+ D* q9 X
5 f3 j2 O, N3 N; ]/ Cset customer one-of other turtles-here
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;; set [customer] of customer myself L) `! R5 K A1 r9 ?6 a% m
, T; i* U% R. @2 B: N0 Z
set [trade-record-one] of self item (([who] of customer) - 1)
" S' T# C% Z# }% t[trade-record-all]of self
3 Q; I, H8 b. j9 d/ R' z4 m;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; J2 p, b; E: f5 s
8 g1 M! N6 u, E& q0 aset [trade-record-one] of customer item (([who] of self) - 1)7 C# m# G! Z& }
[trade-record-all]of customer
4 \+ N/ N0 @6 s0 D. q/ N/ e/ X) }" s
. b( B$ P& l/ C" J( m$ [5 nset [trade-record-one-len] of self length [trade-record-one] of self5 e8 j+ y. {+ I6 x5 }5 F2 C
0 U1 C5 x. q7 [
set trade-record-current( list (timer) (random money-upper-limit))8 F7 }+ f, _& G Z, t. Y1 i* f+ \
) i; ~* ?( X# \' ~' C; f; L/ @2 v. n6 K
ask self [do-trust]$ h* ^& [+ u/ X2 R9 F/ T1 X C
;;先求i对j的信任度
# Z/ c+ ?3 K& x w: [6 i
8 N! K3 q \4 O$ q6 M, C7 u' Aif ([trust-ok] of self)6 I# ?- T9 Q4 J5 P, s/ `
;;根据i对j的信任度来决定是否与j进行交易[/ w5 T- s# f1 k3 w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
0 M4 [0 Q$ r3 f: u
# R" L% r! m* x$ l6 i9 C[+ z$ @- Q+ I6 P
* \3 j D: ^) R* u' G4 u5 R
do-trade
8 i/ z/ F: |$ U# r& S! L- A* e9 C: H( `; G9 K$ i, M f: w' T
update-credibility-ijl5 M1 t: |& g& x3 H, A5 }) g
7 L" A6 q( `; _" _. |0 [- ?
update-credibility-list
$ j$ Q+ M! ^/ L" e
+ D6 a) s" H7 }0 z# ]" i5 p* s$ S. I* I; p/ b
update-global-reputation-list
5 @5 a) O0 t3 G5 b2 b M1 c
; b, D0 y2 d& ?% w+ zpoll-class
& W/ R: V. }4 ?/ P1 v# @$ k% p, [
" N! a n+ m+ y( O' C f; Pget-color
1 e' G c, k4 c' R1 P/ G' X( i1 N' R
: H* |$ i. o/ _/ S, q]]- q* f9 c0 W s/ e, ~/ e# v0 j" |
/ v S @* b: i' X, [;;如果所得的信任度满足条件,则进行交易. b+ Q( }5 o: W) s
, j2 d! q9 O; n' e, q[0 ~( j1 g* e9 r+ t! z+ E! a0 j2 r
6 v6 F% L- A( P( T% q( M
rt random 3603 z$ n# N: z' W1 M
' n" M, g; o2 {* d& `! K4 l: sfd 1
! g7 z! b. r8 M6 d" t& J' `% @: m1 g) H
]
1 E% u! Z0 ^4 C5 E) i) i3 K9 v
8 R) ^% _/ K$ U! O+ T: p* k. Tend
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: ]# N* R3 [$ gto do-trust + d; s0 d4 v5 {) G G# l+ \& d
set trust-ok False
: z& |8 `: {& I L8 @; K5 _. X
@+ K+ M+ D' e6 J8 r6 ?
9 n" p p; P5 Q# w! Z; p! S& wlet max-trade-times 0
, `9 A6 f( Q- Y( Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 b2 E2 D7 y1 k4 n
let max-trade-money 0 ]' c3 q+ S5 _2 D. O) r
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], L* M, z0 x* 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))3 s+ [- j; X( @* b- I) z2 g) g
, ~9 f; y2 f* I" N
; _) X; j& ^2 _8 Qget-global-proportion% V/ P) S |7 i
let trust-value S4 L( E" I$ ^' N. q
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)( b, Q2 h/ C3 {1 w7 h6 b
if(trust-value > trade-trust-value)8 `% W0 o# F* V: \0 _: r! x3 v
[set trust-ok true]
3 q+ ^9 T! f" k F! x" p( P7 Bend U# e% ~) B j2 W5 T1 a
, Y* A0 C. Y$ k) l$ Tto get-global-proportion
; o2 d- R8 Z9 K6 F$ Uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 [- T d6 C3 z- ?1 F9 v; r; t
[set global-proportion 0]
5 L2 N0 Z/ b+ o7 T. N% g. R[let i 0
0 ~, n F8 c C; ]let sum-money 0" ?7 d4 F) e. M2 L# `3 g
while[ i < people], j- A$ x( ]6 I$ z2 i }% C6 ?
[
: ]8 g; T0 t# \% ?if( length (item i& ?- V/ s" L* a! s
[trade-record-all] of customer) > 3 )
# Y V7 c7 C/ g7 z; b! Y[
: s7 w' z4 M/ r( W* o, ], a3 I, ^6 tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 _1 i1 D5 T3 Q- B5 w
]
" ^* V' Z* R+ E& P# v: m, Z]
1 q" N. X7 V8 [let j 0
# T4 C4 e4 B1 E! z, [* V* u4 Dlet note 0, I h% g$ K: X$ b: _: q
while[ j < people]# m6 s2 P: O- W2 U3 ?
[
8 R9 p2 d: Y# ^& W1 Q! b) qif( length (item i
8 }+ |1 B9 o; ]6 L. M# p2 ?1 y[trade-record-all] of customer) > 3 )# k$ k! \! w4 [+ [9 s
[* J" T0 d; `$ ]: J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 [! ^, [5 q& Q2 X/ x
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ H/ r! B% B) W2 n4 V+ C- L9 H+ w[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 s9 e/ d/ ?2 N5 C( ?5 c
]
( T, d; M' @4 o]& |6 e( e& H" R$ c" O
set global-proportion note
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end4 t! l M* P, o8 O7 @* u) I# H
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to do-trade3 u- b* ~7 Q( E( F- f. p7 l
;;这个过程实际上是给双方作出评价的过程
; a: s) g5 s% J- m s! M$ Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 A1 Y( z8 F0 A Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, L5 O7 O5 r6 d2 Y0 t* P* [9 J& ^
set trade-record-current lput(timer) trade-record-current/ G1 n# N/ l: j% ~
;;评价时间
( Y1 l, G4 m; o7 p: Sask myself [
" P; K% {* Y0 Q* V9 t: fupdate-local-reputation
y$ I5 F; o P2 U' nset trade-record-current lput([local-reputation] of myself) trade-record-current& L/ `8 I. A4 V/ U# v
]' q7 i1 l* k6 Q4 g% a0 Q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( H1 o/ t4 s {& }! U% H
;;将此次交易的记录加入到trade-record-one中' U; B/ p- A: J9 t4 V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 _3 W1 q5 P! q& X% x( t2 g h" H4 r/ S
let note (item 2 trade-record-current )
3 R$ D# @& s/ F! y$ aset trade-record-current
2 b1 G6 D1 g- g: y0 y/ i6 m(replace-item 2 trade-record-current (item 3 trade-record-current))
( B/ Q. D+ t0 T9 v# Y) Mset trade-record-current
: ~1 D' s( D# D; w(replace-item 3 trade-record-current note)
; |( D0 M! a# j( M
! @- ^+ c/ J; I; I3 s) `
- g- O y9 o) z0 cask customer [
: V" D% |8 p" {9 Jupdate-local-reputation9 u" [5 Y9 G! N; T. d
set trade-record-current
: B! T0 @ N; S(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 E0 ^9 x( a [5 x7 k! T0 c
]6 f1 R2 r, \2 M
# W! E, y8 {, H, i$ c$ ^, U
9 \- e, N$ t6 ]6 d6 sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 ~- ]0 r4 m* o+ j
( Q' T4 ]$ Z2 S6 ^- K& tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; E. l) }) u4 f) F; K;;将此次交易的记录加入到customer的trade-record-all中+ F$ I! u4 g9 M' I; n
end
, B8 x8 X' |: t9 \8 K) a. G) w2 k# c$ g% E
to update-local-reputation2 n# h/ C1 ^# ?
set [trade-record-one-len] of myself length [trade-record-one] of myself
% U# A9 r- H: i5 Q9 ^
6 h3 B4 Y: [9 Y! C$ a) I9 G' H3 D3 O3 b9 A
;;if [trade-record-one-len] of myself > 3 8 r* b7 K4 V9 A$ C1 |
update-neighbor-total: i- K4 d$ L$ { w
;;更新邻居节点的数目,在此进行1 A6 x* m% W5 Q t; o, d
let i 3
3 i Y3 q$ Z9 p V" w8 Dlet sum-time 0
% J7 x& h5 s# F# b2 R, W3 i$ O: ^while[i < [trade-record-one-len] of myself]+ ~, ^( h' h8 @
[8 I J6 U. B e% g
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 V% J3 y$ X' H" |: @. Kset i" g% K. c/ F2 p% v$ U
( i + 1)* Q8 y9 R8 u" S/ t" U% S. ?/ T0 U% e
]+ Z7 F) q# t/ m6 n2 O$ W
let j 34 v4 a- D% _! }5 r9 O* b, J
let sum-money 0# Z' K( m- j/ X* ?
while[j < [trade-record-one-len] of myself]
2 X7 X# R6 k* J[
3 u& G5 I3 Z# H9 ?/ _/ |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)2 o7 e) `* T: S+ L8 K. _3 J' p* L
set j
: S0 d( A8 B4 b7 _! q( j + 1) z, D5 N8 j/ a8 g, t7 e/ ?
]$ F1 s, C# V) ~% I
let k 3
" ]8 i$ h1 H( Blet power 0
% b7 c5 ?+ ~( t Slet local 0: K5 I- q0 k4 U5 X5 `+ a( a3 C J
while [k <[trade-record-one-len] of myself]. n+ q5 D+ M. m* H# d0 D- ~
[4 u) W& _0 x O# D
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) , X" c+ B7 Y4 _" S
set k (k + 1)
+ m+ y+ P {6 W' a5 c6 u/ i]
6 v, l1 Y* M. B, R' ?set [local-reputation] of myself (local)
( j- g( c E0 r6 z0 G$ Tend( l1 }/ G( E3 s( p7 c% }
# D s2 w* b7 A$ i8 @1 cto update-neighbor-total
3 b+ ]& ?' N6 W: K% V. s f, C! \3 N# _" l
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* S2 L6 u/ _( \6 `- r1 o- K
2 \% s. E% r" q2 i8 m
1 ^0 p y2 D4 [7 e( [- c. S1 oend
. k: y0 n4 x% ]/ w& S3 X+ U$ u; f1 f: J. s! L) a
to update-credibility-ijl
+ o7 }4 y! U1 F9 x
5 K. n3 M4 B- T( @2 t+ V% d( K" Z;;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。7 t+ t M. ?0 J, `% G
let l 0
8 `! L5 a- o! z2 `4 h6 Dwhile[ l < people ]* T/ y9 |3 O2 B q* ^. u8 f0 _
;;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
# M+ O% [! k8 W2 s! f) I, x( q2 l[
( P7 g% Y/ B- l* y' e: ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ V1 [; L5 V5 f- Z
if (trade-record-one-j-l-len > 3)
2 k) r$ P1 z" o7 l1 H4 C$ W. _[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
) [. H7 s9 W' a/ c0 q: l7 ilet i 3
; K" ]' k2 l, b+ E8 Glet sum-time 02 K. c, q- E. d( [
while[i < trade-record-one-len]/ b% {- p; t; @8 d6 l7 R
[
7 C% q& M5 A3 j$ Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( P4 `* G5 b, d+ S4 q" ^" e4 fset i
+ E. `( K9 ^7 x( i + 1)
6 R; O0 A1 j! Z/ f) @+ \]
q. b( ~5 S& s! N* R' k2 Zlet credibility-i-j-l 07 ^2 @( s9 T% R' @) l4 Q& d
;;i评价(j对jl的评价)* e& W6 c1 ]& s, Y
let j 3
2 R5 V: H: C2 z# N' ^0 o' [let k 4/ S$ }2 D8 u7 \6 S6 W' v
while[j < trade-record-one-len]
: H3 K) u0 O1 l, o4 C[6 I% R+ Z/ I3 d& y
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
) Z& c, V' i. `1 o! I) v% Q/ Wset 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)
2 I$ P8 n% U% G. z3 I5 E& g" ]6 d2 kset j H: X; {- Q7 v, ^
( j + 1)
' G+ O& \& r6 v4 k+ k5 L9 d' H]
2 T* A4 r4 _( v3 eset [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 )), U1 K. d" Z8 J, R1 |' y% W4 F1 R* K i
0 U: H+ i& E w( s
; {0 o& W2 n/ x* slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): g6 R) T' `' U, L- M2 {( h$ Z
;;及时更新i对l的评价质量的评价; Q5 a; w# H, `: l* }
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, l) e$ l1 j/ a9 Vset l (l + 1)
; k h3 {; T/ A1 O3 Q( I]) ~2 ~( E2 \" p5 b/ X( i# j: w
end L* ? S, Z3 }
1 @5 [2 u a7 j" y
to update-credibility-list
- n% f1 W' y! X, ~1 E' c' Q8 z+ tlet i 0/ D! J% ^1 _# n" f& R: [
while[i < people]2 t0 `; d: l! a5 ]& x$ f
[1 Z: ~* c9 T" I# Y4 K2 W
let j 0) {) T7 v: p/ [) [9 p9 `! D
let note 0
, y% L/ `: g. [" ?# X& dlet k 0- H6 y7 w% L4 R
;;计作出过评价的邻居节点的数目
. Z* S" g7 z4 ^' c2 R9 ^, Owhile[j < people]
2 T3 u& c8 ~, V. k# W5 ~* M9 O[ U# z0 i/ L+ F3 O$ M$ \1 u' v
if (item j( [credibility] of turtle (i + 1)) != -1)
6 z! `1 k. O# ?;;判断是否给本turtle的评价质量做出过评价的节点 [/ A7 I9 K( k. a- J& x- Q" m
[set note (note + item j ([credibility]of turtle (i + 1)))
8 p% |, w/ H/ Q7 k3 k0 }2 |+ F;;*(exp (-(people - 2)))/(people - 2))]
' H( q2 j& u" G' n( ?; s+ cset k (k + 1)
' H+ F4 s! p6 M* J]* X' l$ o' l. v& q+ Q. s: v! O
set j (j + 1)9 u% ^1 `1 {1 Z9 |, q# Z
]! q; y$ w# ?* e7 R0 S0 s
set note (note *(exp (- (1 / k)))/ k)
9 v% M4 Z6 Y4 Nset credibility-list (replace-item i credibility-list note)3 t, [8 J0 v6 N1 N
set i (i + 1)# o( ?* Q2 W& h! l! `- U3 v1 S6 t$ g
]1 x$ r7 c. t8 `1 B
end2 q# F: V c$ I& N
- n% |: K" ?- s; T* M+ d0 ^. E% i
to update-global-reputation-list
6 g8 _9 {$ |8 _let j 0
* V* u2 C( W# U: W4 P3 g( ywhile[j < people]) Z' a: |: V. {- e
[; Z+ l$ a( \% X6 o# R( `! r7 |+ g& e
let new 0
; t+ l% r3 ?5 Y0 z" o;;暂存新的一个全局声誉9 m0 G; _3 E0 Z2 }, W
let i 0
- I9 G+ i2 ] Zlet sum-money 09 M% o2 Z1 O8 X
let credibility-money 04 e3 Z+ c% K& U: t
while [i < people]
# ?* K8 S/ X5 U8 }2 U$ F[5 \ a" P! P3 l# R; B; C
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 r* b" W3 _% i7 R2 p6 @
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# x' ?7 e2 {2 @! zset i (i + 1)
+ g5 x+ V0 M8 ]/ S" X2 L% }! R]
$ c; ^) G. g! l- dlet k 03 x: k6 ^9 Q/ ]4 K
let new1 0
. r- u8 [, z& m$ Awhile [k < people]
* R3 h7 }1 E* g5 }% ?& E# h[
: H: K6 B1 N1 t# {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)$ R6 ~% h2 g& e% Z8 S
set k (k + 1)+ E5 W" g' R" b7 \% R% s. S
]
* k' _- m. I( Q; h* Y4 [. A* }set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 G. {0 C6 @ S$ B3 `1 l0 ^1 \set global-reputation-list (replace-item j global-reputation-list new)
V- X1 [4 a1 E1 dset j (j + 1)) I2 `+ O3 y w4 j% i( E
]
: I" W5 _; X! a& l: lend
) |, e6 m0 P: E# k" h! r
$ E* r. G* J% U) I; G5 ^: s, v- @8 R# Q( W$ \4 i) x/ |/ ^
4 |& z6 M9 a l* @1 U! k/ A' |
to get-color
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set color blue
x2 Y k1 ]" f6 Q; n2 cend; t7 V8 T" F# q- |2 T
& k2 P: Z6 l4 H+ Hto poll-class" r& D, | h8 B% [( D
end
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1 o% i+ e1 H/ }- N# Yto setup-plot1
7 c+ q- w" O7 f9 P$ Z) {' c; T+ S3 P/ M3 s
set-current-plot "Trends-of-Local-reputation"& t- U0 i8 d, ^- Y9 X L: d2 F
# W; t& T4 f+ @0 \5 N) }6 K
set-plot-x-range 0 xmax, ?5 w0 x1 A0 L3 U7 q
, B+ [/ a2 X5 Zset-plot-y-range 0.0 ymax
: }* S6 ]; w" A- ?- [5 Wend4 ]7 e9 l N" w- F' Z
8 _4 J9 N3 `4 {1 Y
to setup-plot2/ [2 I: `# H' j4 d8 y R8 i# U
/ I: K4 c- p" W) D, B7 V6 Mset-current-plot "Trends-of-global-reputation"$ q+ \, k7 z8 F0 s5 S5 I9 ]
- Q2 F8 ~ J3 d+ h
set-plot-x-range 0 xmax
) n7 t7 j9 y4 u8 u6 t, \2 ]2 X* l# v8 T+ ]! P$ A
set-plot-y-range 0.0 ymax
( F/ l1 a6 u* T' ]5 Y* ?/ @9 Nend
0 I2 v( M9 q) B/ n3 V ~( P" x5 m' z5 | h: ]( @. C5 I+ f
to setup-plot3
) o: C# K- S9 S' ^1 m
. L9 L; O) d0 Q/ D9 N3 Lset-current-plot "Trends-of-credibility"
) t5 J8 w! T ]6 i# n
1 V/ b$ p1 ^& I8 F5 J1 c' l; j- eset-plot-x-range 0 xmax
8 \% w0 a. X. V/ a, \* U# z2 M( Q6 E# \! ~, T5 C9 s. Q) A
set-plot-y-range 0.0 ymax4 r$ a2 m; ?) X' |& g
end" w; a) U& ]- j4 E3 N- Y3 ~
5 X: W* v# |, G6 ^+ ato do-plots
6 A% V! x) J1 A/ S1 c; D5 `set-current-plot "Trends-of-Local-reputation"
9 }0 B4 j4 b4 l. c! B& lset-current-plot-pen "Honest service". b9 ` k2 G, B8 ?* p
end2 Y; B) X7 L8 u5 Q' y! Q# ]
, n3 y$ t3 ~: x% A. L[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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