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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. r3 J+ J( _/ f3 a
globals[& |; T% s) v$ n, S r
xmax
, r8 j; i3 j% q: T* jymax
& O2 T: j$ V, r Sglobal-reputation-list
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|" U) D) D0 R; ^( F2 g;;每一个turtle的全局声誉都存在此LIST中& U& b# [0 Q4 a. x
credibility-list
/ `) J* K4 K" n5 H$ y8 m. j, y;;每一个turtle的评价可信度3 n* m. j6 t) }- l5 }
honest-service
$ d( N# ~# E; R7 `0 B! o! Lunhonest-service
) [6 A4 @6 J: qoscillation
( L; f$ M; t$ M9 c' e4 ^1 e4 l& Jrand-dynamic# u" |0 n3 r$ M4 \7 t' j$ d' f. m
]
4 {6 U, i: i, H2 S
% x9 N8 ^: G" \% T5 Y, Wturtles-own[% A1 w! p& B9 V" k! M/ B2 `( D4 m; H
trade-record-all
) ]9 y! M+ `% l;;a list of lists,由trade-record-one组成8 k; B. {! Z- K8 w
trade-record-one
! m3 i" S( M8 L1 s: i;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录! }2 E0 d5 g& I# |" _! W5 Q
% m- d4 \" S, C# ]% K& C
;;[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. i" |+ a c+ X3 ?- r: c3 ]
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 T' d! R" f" ]8 T4 A7 b7 P6 Z4 Ecredibility-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
% ~5 j& d# D& o* m: eneighbor-total5 H5 p" u- z: r5 m- F
;;记录该turtle的邻居节点的数目
# }7 p/ i. ^/ @5 M4 |1 ~+ btrade-time
2 d u8 A4 T) ?; {) c;;当前发生交易的turtle的交易时间" M8 \: O6 g4 T$ f+ u5 T
appraise-give& u+ H! P" E8 a; w2 }
;;当前发生交易时给出的评价0 L* x" ?& I: D. Q, B. {! A+ T
appraise-receive9 o; ~7 g: P% p/ m( f% D+ a
;;当前发生交易时收到的评价
" s3 G+ Y- m. N* M; k. P6 `& m, `appraise-time( a( D) m; M; j+ T. o8 m
;;当前发生交易时的评价时间 K5 ~4 j0 r+ _' |
local-reputation-now;;此次交易后相对于对方turtle的局部声誉/ u6 ~& F9 _2 m! H7 ?( ?
trade-times-total
6 I' t6 _1 ~0 d# P& \ g5 o;;与当前turtle的交易总次数
& Y& P+ c+ L& H: L) u4 P* vtrade-money-total
. G* o$ Z) r1 s' v& v;;与当前turtle的交易总金额# M) G* Y. G0 C2 W
local-reputation5 t% o+ x* A2 R. |
global-reputation
% c) N; a' {! }3 ycredibility
* S, ~9 t/ [; W; d7 N;;评价可信度,每次交易后都需要更新
# t1 b4 @( r; G$ y9 x7 wcredibility-all. A: x G( Z2 P# Y3 ?$ D5 x
;;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
9 [# e2 W9 _, u$ z) ?- a/ H& |5 U
;;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* z9 `( [" R# |! D
credibility-one; @! z1 Y4 a9 c4 G
;;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
" a2 @: S0 o8 R, N9 C7 o1 o: N* Dglobal-proportion
/ ?# `8 ?0 W+ Z, L5 f* x3 _customer
- V/ ^* m0 ~4 _9 ~customer-no* U$ t9 L+ d+ z4 v
trust-ok. M# y- X6 y9 e4 ]4 \: w+ e# t" B
trade-record-one-len;;trade-record-one的长度 I- \" k# Z6 w9 F
]
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' ^, E3 w; a1 i( w" |;;setup procedure0 o8 g3 T0 O, F7 |4 A4 N. H
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to setup5 M5 h- b( f/ T: w0 f& W
2 ` w2 X) F. l5 v- j+ K6 _" Sca+ w% T1 p4 |: E e
9 T( O8 U2 f D1 D& g- T4 r" @+ j4 ~9 _initialize-settings
% A7 {5 A7 Y, d8 J% h0 y3 V3 F& w- i8 W1 x+ s
crt people [setup-turtles]/ N* a, x) h( i* d' V! B1 z9 ^
( O% @) N: M: z
reset-timer
0 q5 s5 e1 N$ d, j6 ~3 ?
3 U5 i8 x9 I6 z2 s) w5 V" jpoll-class
' S, ^. n' a! @7 `' y/ N; b6 `. N/ z& n6 N3 S0 H
setup-plots
9 P% I' m& G( u4 y; _% y1 E
+ P! D# F7 Q% l! mdo-plots
i0 Q: i2 y5 R8 r, o; d- [end
5 C+ o2 h) i$ A; ?% I& n5 \% b- u9 m( C5 l' U
to initialize-settings
0 m9 [+ e& S' _' g+ X+ W
4 e, G8 W: A* V. C( _set global-reputation-list []
, T5 D1 J7 b/ W" |, r8 D7 m
. ?! t* L M' G# u8 g% Y# Uset credibility-list n-values people [0.5]
2 A2 c3 b6 A6 E3 l6 n6 N1 h, C y
W4 G/ s b5 C; ?set honest-service 0, H& c& H/ T4 H# h5 p
* G! s. c7 ^* @6 \* }! n9 d
set unhonest-service 0- q3 O2 R) c6 H! o. V
) I5 r3 D# A/ n" Vset oscillation 0
; F! U7 d( b1 y0 e8 J& ]7 l: o! @# S. L" ^$ c
set rand-dynamic 0
3 U" _6 P$ I% Q& r/ B9 Z& Y- n( oend! b+ _: L, U8 R7 O' \ j% Y- P1 v
- b" c l+ C- H0 u# D0 Y2 X
to setup-turtles & e {8 \/ f! t9 j3 e: q
set shape "person"
% _, R' `: U: nsetxy random-xcor random-ycor
$ v/ e% z8 v+ x4 `# fset trade-record-one []+ `% M% n. [7 g5 p
3 w! S# h& A9 t: x1 ?$ m. B A. U; }set trade-record-all n-values people [(list (? + 1) 0 0)] l% D, W5 w2 ]
3 Y/ k9 y+ e- S# ]9 E
set trade-record-current []
" ?* \! y+ e( L/ H$ a- [. Yset credibility-receive []
$ a0 z' a3 T6 g1 P. X/ w a& gset local-reputation 0.5
! Q* N C, k- |' m+ g# P5 gset neighbor-total 0
X, W) I! }" r' `- `0 f. fset trade-times-total 0
, a1 h- u" J I) |9 Aset trade-money-total 0
6 }# {* Y) L3 r5 \& kset customer nobody6 J4 T: Q' _; c9 @9 j. s8 l
set credibility-all n-values people [creat-credibility]
8 `5 E) G6 w4 P& y# ]! Hset credibility n-values people [-1] |+ P6 |1 _- |$ g) s9 ]2 D1 q6 _, `
get-color) l5 e# I$ U( {6 r) J9 W
9 z2 ?6 P: _& H* S" K5 ^" ?0 @end
) x5 y" P% @$ Q- K* i
" O, Y$ V2 Z l& _) Y) ]. Hto-report creat-credibility
9 e/ t( i2 t) `. freport n-values people [0.5]
0 B. H) w3 Q* z1 H- Hend
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to setup-plots
: [% F p& r8 a- M! ^& R/ C7 |5 z3 O) J1 X0 n4 `+ q: e
set xmax 30! N# j/ p7 @+ N# t* L4 d4 K$ t
( o7 N+ A8 q8 O5 q$ u9 @( A6 v9 Yset ymax 1.0
; u p" h! m2 e$ J* u/ z6 G% [* M: O- ?
clear-all-plots
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setup-plot1
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setup-plot2" z. y) b0 } t- n
, U0 H: B, E" k7 e$ G+ `% Csetup-plot3
6 G; ], ]- @3 ~/ [( L, eend
7 q$ I8 {. s/ o% U8 l/ _ Z
, B- k/ m! f/ x/ v! Z;;run time procedures$ d0 x: V+ v9 G0 c! R
$ H/ F: P, z; n3 @0 b& z
to go9 U& |5 Q, Z+ C* G
; m8 H. R8 I- b6 Mask turtles [do-business]! n: T- ?( d( F3 b# m+ W
end
) f( o" z; w/ [) k" G* }
4 Y/ J0 q( j( `! fto do-business
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, j+ Q' b& y1 |) ?+ D% z, Z" ]4 d7 g( m
rt random 360
2 ^. z9 F; \9 H+ q" s. A
; ]; C+ E$ U! B0 Q+ V9 gfd 1
4 } |4 _, K$ Q
. s* L0 b- G. b3 I fifelse(other turtles-here != nobody)[4 B: X& w! Y% |2 {! A$ Z9 B
[% q7 v. w! j% ?
set customer one-of other turtles-here9 `3 C9 b. b6 `/ P
) a3 A' T- E* Y1 w: x+ X9 {;; set [customer] of customer myself
* ~1 \' U0 [, |( L* e! j6 S L. y1 a j* O
set [trade-record-one] of self item (([who] of customer) - 1)
- ^/ x* Y6 T: Z[trade-record-all]of self# d# v# D4 C" Z- j+ P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& z+ \. A0 N+ ^8 N$ z
T! ?* N$ T {set [trade-record-one] of customer item (([who] of self) - 1)
, d7 t. y0 D# e( |4 Q[trade-record-all]of customer
" {" w: r- u4 @" @5 `% l* t. i; @) T1 P
set [trade-record-one-len] of self length [trade-record-one] of self% M( c( o/ M, v+ ]/ I' v
+ G* G0 z3 o7 h2 `: [5 o. S
set trade-record-current( list (timer) (random money-upper-limit)). g% \, @$ x$ @& `0 N4 I
/ ?. F$ ]" [8 w# j' A, I
ask self [do-trust]. p6 |! F, ^) C3 q; g
;;先求i对j的信任度6 ?, ~/ Z9 v) `6 |* X( ?
# T4 I9 k9 Q0 e+ S6 V
if ([trust-ok] of self)
0 D' e. x, r/ d/ I* _;;根据i对j的信任度来决定是否与j进行交易[$ V- j( {+ K7 u# ]% y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
$ I, O, B$ h' v+ D% B0 Q8 Z# K g ]* b/ Y% ~3 L Q/ H
do-trade% c1 d: x8 a& d
5 E k$ M/ \# t* z
update-credibility-ijl. }4 Z/ x# E. E k+ f, ^. j8 G
1 D/ z! O @7 ?# R% l! e% E! _3 Bupdate-credibility-list4 A4 v, i) i+ Y# X! o6 c
& A" r* @& {6 ^7 Y [: D
. D2 {2 R$ X( ~: F, _
update-global-reputation-list
* D9 n& W8 t' I8 T5 P- n6 `, G& k6 f9 g7 D0 x
poll-class
& ?# s( c- ?' ~ C2 p$ v8 J/ D- p$ t4 H+ q
get-color' t) |, S$ ^$ H7 V6 E$ `
3 X4 S' P6 ?0 b4 H]]
, F* V, M5 k7 f3 f. ~: P
D* g9 Q- f$ }& L6 F/ ?2 _;;如果所得的信任度满足条件,则进行交易
2 }. _ h/ }& q
4 h/ z2 L7 p5 _0 Z1 N6 u. g[3 x$ z& w* H* ^3 q
- L) k0 x5 S/ L, a* s6 _% z
rt random 360
" Q2 G, [( @& K. k H( `5 ?0 b `0 Z" ^- q, U
fd 1
7 Q( r! U, b! k1 o/ n9 d
, K T( w8 f+ f8 F: A6 f]& c" W, h" N, b9 k
% i/ l" f* j* R9 E- o; x
end
4 ]8 U! A- C R. r y$ v% |9 E3 n* K/ @% s( n2 L; o2 ~# H7 D
to do-trust 8 [4 p' S6 E& [# Y/ [3 q7 X5 `2 [: a
set trust-ok False0 L) W: c2 ^- f. Z
9 ?& b9 ^, O2 N5 P: s; a
' F7 L( c- x9 c: \. Rlet max-trade-times 08 f- ^) X7 a& r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& x0 W* s! E3 h3 v2 d
let max-trade-money 0, B' z4 k( ?0 a' x2 b) ?( V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 K# @5 w4 @! M* h; R
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), i5 D6 X8 w1 x5 z, y, e0 A; E2 |
% w+ R4 N* V" G* @! A& i9 z' g9 d! e. ?. g- C& U1 _3 h
get-global-proportion
8 n/ f e& q. |9 R# Z+ a0 ulet trust-value
0 B8 U V& b0 C/ d$ s& ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
5 M( N5 p3 x4 u" ?8 a$ w3 N0 uif(trust-value > trade-trust-value)
% g+ K* R7 @7 W! ~[set trust-ok true]) Y: J4 P9 {. L' Z9 ~! n' m5 H
end
1 D2 C( A+ ~) x: M: s' C
4 e4 {1 Z; A; F* U: B! Vto get-global-proportion
8 e5 L, E7 Z* |# ?+ _3 D! v0 T: w, Difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), I# ]+ o0 |& g* ^7 k4 i% p
[set global-proportion 0]
/ v1 b8 @& z4 t[let i 02 q% R7 X/ E$ C* i
let sum-money 0) {* m$ K0 h; s m
while[ i < people]
) X- ?8 i6 i+ Z7 B% x2 W" U' C* B4 _[5 w' ^& S+ `+ U# N5 L
if( length (item i. k/ R: t5 D! g1 e3 o4 V
[trade-record-all] of customer) > 3 )
! W! C( p' S7 [ I# t[ n0 R/ D+ R2 k, i5 T4 Y( x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) _3 w3 }* Y! g! M
]
* `* Q& I h: h5 k. W5 T. P& R]( n U' b# c; y0 _2 r/ S
let j 0
$ ^$ M2 o$ j) }$ J- F) alet note 0
/ M7 Z3 S1 E8 c8 n4 N7 ^ fwhile[ j < people]! L2 u' i. G; B' ]( H6 Y% y
[
, @% c7 V; O& ?( Mif( length (item i& t6 Y, b: p5 S9 l
[trade-record-all] of customer) > 3 )5 W( r9 Y/ q4 E& D; F) X
[
3 D& {" B' l- M5 d- q. N" t0 L! Gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 Q. a3 r; D2 {8 x0 E- I- T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. j! J) M$ K) w7 V3 v1 P3 ^4 u
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% G- M, C9 M5 X% e* R5 W]
2 I% ~0 P" R- u$ n) {4 e]
3 h3 H2 o/ e( v2 r! }& ^set global-proportion note
, k- l' U0 F; U9 K6 E. n]3 V: L2 y: e0 q4 w* T
end
( p% v5 @: i8 F5 {0 Q+ d- H5 d. i$ K# g: D+ G u7 x/ E
to do-trade1 w, X4 ?" X( K0 f% X/ A
;;这个过程实际上是给双方作出评价的过程
1 N) y- i0 r) H' P2 g# }) Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# R e* ^0 T) j* Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 I$ i6 k0 w& c: o. @2 Sset trade-record-current lput(timer) trade-record-current
" t2 k% E# h; m5 Q( c. z;;评价时间# s: s* S0 `1 J% T" N2 C
ask myself [
0 B8 X2 ^, g+ A$ O. \ s1 mupdate-local-reputation
" M% i; }, N0 h* [ Lset trade-record-current lput([local-reputation] of myself) trade-record-current
7 J, [8 J8 V/ Y+ O5 O c]
2 _9 W; ?/ e- [$ Uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% b9 A/ M% j/ f8 R9 K;;将此次交易的记录加入到trade-record-one中8 a. }" _' @8 [" Z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 v5 F& d" P( l7 M
let note (item 2 trade-record-current )& }- _9 B0 W" o
set trade-record-current
! n7 x% H. ~5 P; J: I% Y" C(replace-item 2 trade-record-current (item 3 trade-record-current))/ I" [' `! b4 ^2 \
set trade-record-current
# T1 K: a' a* v# I$ o(replace-item 3 trade-record-current note)
% M c0 E9 s6 C3 S8 N2 P
( u3 F* j! z. R7 c: P, F8 ^
# O1 E# ]/ V! f8 H8 B" B% h; o- d: Qask customer [
4 S2 k/ @: D9 v3 ~update-local-reputation
7 N2 b* Y: n Kset trade-record-current8 G, C/ S7 B/ D- n
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" z# `* C4 k M$ C# e, j/ n]% W' i0 h7 r3 B; c4 m4 L
- P) Z: `% `: V m. X# Y0 D ~: ^& c0 E4 S
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& L- C; y1 }% j& P; u# ]" ^: B' u0 l" J) l: b, \; c b$ g
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( [; H' h* o" l1 x) k6 B; q
;;将此次交易的记录加入到customer的trade-record-all中- g* | c0 D1 V" b9 s& Y
end
' w3 r& {/ J; o; ^4 p1 y
) Q: D# q3 |5 |to update-local-reputation9 K0 ~, h( ~* Z3 S
set [trade-record-one-len] of myself length [trade-record-one] of myself
' }1 K, N# m) N: c! m/ @, [$ \$ e# V2 \* f: ~4 w9 t! |5 h
# n& W; v% k# D; }0 J7 z6 M- Z: v! h+ z
;;if [trade-record-one-len] of myself > 3
8 U* u! w: P* Supdate-neighbor-total' P- z, v8 c+ G
;;更新邻居节点的数目,在此进行
3 E2 |4 C" _9 Zlet i 3# f C! T. Z, a! @; g2 n; H
let sum-time 0+ {4 p- H9 O# n% |8 r0 m
while[i < [trade-record-one-len] of myself]
1 N$ f+ M, Z$ r! p[2 ]% |5 j" v9 Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 x) j* T/ l/ Dset i
+ J( V* w6 x& `) G( i + 1)/ p! f2 m3 l8 [
]: j A4 D9 `: @( {( _
let j 3
) y' z @9 V2 ~) N% hlet sum-money 0
6 Y" B, L6 |' ^; v" j; mwhile[j < [trade-record-one-len] of myself]( e3 L6 b0 \2 R. `, N% W& J
[
$ X* w3 Y3 R7 O- b5 }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)
. [, e% z q6 \7 Sset j
9 m9 `- q( P5 A( d9 G. O6 _1 {( j + 1)
5 t9 g8 h* C; i% d]- [" A$ x) h) {
let k 31 w$ Y0 w8 c; m. _1 Y2 e
let power 0# {: h& e E! U/ O% d5 V
let local 00 W! _1 a) r$ }. {
while [k <[trade-record-one-len] of myself]" t, l+ S+ Q4 ~6 Z; Q6 {# Z! b
[8 c2 E* Z, n7 B2 |/ P* Z
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)
/ J# {) z4 ] sset k (k + 1)
; `8 a8 a( j* y* S( x. w]
9 Z( P& u1 V( S0 ]9 ?6 Eset [local-reputation] of myself (local)
5 N' u1 Q" J% Q- G7 \3 K4 dend
2 B8 d: y& Q, l3 z* X" A" ^( `! F2 ?# r6 O4 Y; m. a8 P+ w
to update-neighbor-total
2 r9 c' U4 X" i) J& O; z7 m5 L/ |6 z/ O# m
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
o, O, V/ Z0 c. ~5 B0 W' A0 @& J+ C4 X; H
. _" U% U) i- C O) p6 Nend( U+ y- p% T% u; j/ [( z/ f& f& Y2 }
x% l5 G' A! Z r6 Eto update-credibility-ijl . u; i( d" z! k" Q3 g. L
2 E3 p4 x6 d `" j c;;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 f9 q# T: m& h) ], ~let l 0
$ u, i! a, | ]4 Vwhile[ l < people ]
( Y1 B5 [. X4 ~. `2 i;;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 F7 A4 F: e- u) O# O# q[# Q, w R0 o2 W% j3 K
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 q+ q" d [+ w9 h3 cif (trade-record-one-j-l-len > 3)" c, f& ^+ B+ m4 [3 O$ X
[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
1 j& @, F: E* b! vlet i 3& x4 V* F$ I! c$ l6 q O
let sum-time 0
5 t- e. O, z/ h* |1 l* Fwhile[i < trade-record-one-len]! H7 k! w$ ] B4 {6 |- Q9 I7 r3 @
[
3 I8 R$ p! i% C* m x. I2 mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: v0 L7 S5 S# o% _8 R+ r2 @set i/ K( ?' F* ~6 D e7 E. N& w
( i + 1)
1 s D0 D8 [4 n- S]
* G2 |8 `' p$ s/ J) r8 wlet credibility-i-j-l 0
! m, x- B+ \) y' ^! a% Q' i" ^6 U;;i评价(j对jl的评价)
+ A" N5 O. U. ?) M8 Flet j 3" V5 l4 I# l7 ~, ^. o2 i8 L9 F
let k 4
: s# x* D+ D# N" G, nwhile[j < trade-record-one-len]
0 s% \1 Q6 \) P6 e3 T$ U+ `[
, a$ |: ], V v7 `, U6 A7 B2 rwhile [((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
( D$ h) d; E( d! R8 v" }3 c0 vset 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)
. l$ x$ Z; B. x7 t+ h: ^3 Aset j7 q. _( S2 x0 U9 d0 O0 M
( j + 1) U: k+ y }, g/ D; m
]: E8 ~- K+ l/ r7 {4 o
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 ))
! Z% d) G- {$ B/ J: l7 ?) `* F. E; U: ~' Y5 H: q# Q
; t6 U1 ~2 ~' m& n8 ~; ?+ ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ T. S* ^. j" _9 j) e3 P;;及时更新i对l的评价质量的评价
/ }. T* K) t @; @+ t5 X: S# lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- A& a* o% g/ V; f2 Rset l (l + 1)0 L2 V# S9 h6 P( R; N
]
# z0 I: y8 o1 wend8 f; t1 U6 r# p
. W8 c- I' p0 _: G u
to update-credibility-list
, g5 h( ~1 r4 x; ^. clet i 0$ i- F% A" q" [/ f: x% Z
while[i < people]
5 b7 B" z" e* J7 X2 }' v& J[0 l/ b6 a4 s: N+ w
let j 0
/ a: s1 g5 a) z T' I- q( {let note 0
# j( _( B* q- u1 Flet k 05 X2 o: C Q- H7 h7 C4 l
;;计作出过评价的邻居节点的数目* e7 D! k- o- K# e$ |) N' f
while[j < people]
, k4 _9 b. n g1 o4 T& i[
, s* b4 t/ T E4 u5 o: pif (item j( [credibility] of turtle (i + 1)) != -1)" o( @6 f& g' L
;;判断是否给本turtle的评价质量做出过评价的节点5 J3 ]2 J6 J$ C5 `3 T9 |* j; p3 h
[set note (note + item j ([credibility]of turtle (i + 1)))
. a' u3 K( \3 D1 `- E;;*(exp (-(people - 2)))/(people - 2))]
: R _+ K3 q# Dset k (k + 1)0 g9 i0 R1 `! A E1 J7 c
]
" f$ p+ d; P9 v5 y3 X+ p) ^6 Tset j (j + 1)
/ V/ E: s; t2 W9 ?, x# g3 \( []1 P: h2 r9 [. z3 t; n( r
set note (note *(exp (- (1 / k)))/ k)
! e' J: q7 H1 s+ ^set credibility-list (replace-item i credibility-list note)
7 K5 e0 f5 c9 c/ vset i (i + 1): Q6 ^- u" q# X, |, M5 x' |
]
7 ?0 \: ~ `) Z t5 |8 _end! u5 b+ g$ H( ?) R$ v: `
: m: C* w( m" J6 Sto update-global-reputation-list5 ?; N7 z5 Z% ]
let j 0- c4 Z% t' {. t8 i- v
while[j < people]
5 Z9 M" l0 |% Z[' s( H4 `5 ]/ M
let new 0
4 W! Z8 z2 E7 ^4 d1 R0 E;;暂存新的一个全局声誉
1 p( o, D/ _$ ~let i 0( |! M" Q! \( R+ g* z
let sum-money 09 N2 Y; A) w- n' p( L/ h0 Q) R/ m
let credibility-money 0 K8 f: X) H% e2 z3 Y
while [i < people]# V% T, y, x0 J! |9 s" H( e9 h
[3 s: e; F- P) k; Y0 q6 P
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 U# g3 V% u6 s/ ^1 K; o0 ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; s9 G6 o3 \) {/ ]9 j( t. Pset i (i + 1). l0 ?. @* E6 C8 o- B2 F2 U5 o
]
" W r5 b: |0 xlet k 0' \2 x/ ~* q$ y6 V& e( `
let new1 03 L9 Y6 Y0 _% P# b$ l) D& E! Q! S
while [k < people]! u8 B8 q5 ~0 J# m, D, r
[/ q( R9 o" ?0 p. g
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); U. ^' o/ ^, R J% w4 I
set k (k + 1)
4 i4 j) o5 Z( }# q]) x7 o# r, M8 C! M- ]
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 M- {3 u, o* b. h" F5 m
set global-reputation-list (replace-item j global-reputation-list new)
) x3 r. X4 n+ O# f, X3 f' E3 Kset j (j + 1)
) P: H# {9 L/ H/ ^- D* [$ X4 G* r6 k]
N5 D: I" q/ Dend
1 I, L1 G8 l2 I6 L+ Q) Q7 j$ y7 `- b: j1 G2 z2 P% M# u9 P5 }
: Q3 ~5 m w1 i; ^3 J
G P# J/ d- a
to get-color
; P3 o$ t W7 E" G# g' w- Q5 f+ \" W0 ]& w; C
set color blue
1 _ i8 _2 O& g" K; ?( N" b: W aend7 C3 a5 o$ n2 a/ g% z- \
- H0 \/ M! z } z/ n, Uto poll-class& g+ N! j, K1 U" q
end9 C6 }: y4 O' ]. r; g2 l, K
9 S& ~) x) U# Xto setup-plot1
" N$ U4 z( ^" o& L0 K/ U
Z3 @9 g* a- b; fset-current-plot "Trends-of-Local-reputation", X" U5 Z$ f: C h
& a7 f: r/ q# I; X8 i
set-plot-x-range 0 xmax
2 z' g. b+ e' E4 T) k# n* D$ {0 p' `0 r6 x4 G% `
set-plot-y-range 0.0 ymax
) B6 @# z. E& qend
/ p3 d; U% q, n6 I
2 m/ f& h' f+ u! Fto setup-plot2
! k9 z. U0 B* z5 z/ T) G
) B! d8 c" l4 P0 e0 f$ ]set-current-plot "Trends-of-global-reputation"
9 c4 ]$ l9 A' T
! G" `3 D/ N' bset-plot-x-range 0 xmax1 a' `- a) O4 Q2 x% \( Z* o5 o+ k
' J. ?7 ^( b- zset-plot-y-range 0.0 ymax/ P2 Z0 [! p/ k4 U9 H h
end
) B" T) o$ d; G8 ?1 l0 C7 j' F
' o! m7 \/ q' Y% M1 g7 e$ zto setup-plot3
2 z8 N5 i, t, K5 Z8 ?3 J; r$ o [; f; f' |' Q
set-current-plot "Trends-of-credibility"
+ M. ]( p; {# ^4 H' R1 k% o, ?2 ^0 X
set-plot-x-range 0 xmax
+ W3 k S9 P0 z6 f& X, q- P
& Q' A1 Q* a* M' j$ K- Mset-plot-y-range 0.0 ymax
) v _2 f+ {% M4 lend
5 n. Z2 C( P( Z* ^3 j1 V' \; ^ ^8 \6 M
to do-plots
( Z5 H# P( u+ h& F2 I8 K% g- @set-current-plot "Trends-of-Local-reputation") K' c5 T+ W4 K! M2 b
set-current-plot-pen "Honest service"! y: Q1 ?! Q9 J" z- q- g! s
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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