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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3 ]/ I3 w, q, M" P3 a
globals[7 ?5 o( h6 j" ~
xmax6 q9 M$ R; v" X; Q* ^- c- W( Y
ymax
+ G: B, s$ I& m) U7 ^" Z7 R, Yglobal-reputation-list
9 i6 g8 j o) o+ R6 s V5 {! M2 p; F. M% W# F2 J
;;每一个turtle的全局声誉都存在此LIST中$ m7 h1 j0 o9 R! I6 J5 `0 b
credibility-list
; d) ?" H4 N- i8 W& f;;每一个turtle的评价可信度2 L& E$ W1 y b' k1 _
honest-service, q) J m' _1 E; d) S. U
unhonest-service
, i* H- ?8 ~. Coscillation$ I; N5 T8 I( F1 E( f, x$ B
rand-dynamic% A6 I( ^ X/ Y% f0 ^. t3 U% ~, O
]/ }0 t5 l* h0 \1 p; S2 K# [
6 N$ y! T. {2 e% y* i+ fturtles-own[
- g$ \# j5 ~$ X+ I' ~" wtrade-record-all
6 [/ h; k x3 B0 _4 ]4 y' N4 M. ~;;a list of lists,由trade-record-one组成, U [, t* x5 T0 D2 q) x
trade-record-one `& b: w' [6 `; T' ~: f
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( b, [( V0 w. M1 P
% ` T) B2 F Q" J7 {" 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]]- d x; y4 H( |, e9 {& m" ?
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]
5 Z; K& |# m% C6 n% `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$ K/ |: V6 {5 k: p+ Z$ R
neighbor-total
1 h$ r/ W9 j* Z;;记录该turtle的邻居节点的数目
# q' Q& X2 X! O5 @, A% O3 Q' qtrade-time2 f8 F- B4 _/ r$ Z& w' ?: M
;;当前发生交易的turtle的交易时间0 g! O/ y; b; y" H' r( k
appraise-give9 ]/ i$ j4 {) Y
;;当前发生交易时给出的评价
0 }9 ]: l2 R+ W* d% z, V6 o Xappraise-receive4 f7 P8 Z( y7 O
;;当前发生交易时收到的评价! l* I. \6 p( D# m; ]/ K( f O5 `
appraise-time
& ~" R" N( o8 |5 M% L;;当前发生交易时的评价时间- \8 P7 m0 _: n' T1 T1 h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) V Z1 F; K3 z- }& B; B* E
trade-times-total
% h: @/ j* G5 Y" g7 u;;与当前turtle的交易总次数
3 _+ C M$ J8 R+ g x9 o+ }trade-money-total
8 w/ X. N: z+ b( H;;与当前turtle的交易总金额) s! l/ A+ f2 g2 h( w
local-reputation
% \, ?. ~5 c! j# h) L! [global-reputation
: E# P4 C" [/ r _! a) ]4 hcredibility a. V7 p7 j. S
;;评价可信度,每次交易后都需要更新
" @% X$ F0 k, n i! rcredibility-all
. V! H! S; p6 |! {' z4 B;;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6 ]' ?( Z- k: k2 ^- Z: @
; v" r! u& X! D% ]' H3 T) t4 O
;;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: {1 H* h/ B/ j3 W
credibility-one
8 ]- r- Q7 C- s- a; Q* D- X; J' H;;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
5 ~1 \( H; {$ V# p f8 Dglobal-proportion
) C0 U* w# B4 bcustomer8 ]3 {0 F- E& |8 B
customer-no4 ?$ q. r+ J4 C; X. l* y: h
trust-ok+ v' l9 Q3 J" L* ]6 f, j! A' a# ^
trade-record-one-len;;trade-record-one的长度
5 F3 F7 M8 i3 I$ \]
) m, C5 G/ Z1 D2 e5 t
% I, M" X" [ R5 {) a;;setup procedure
% ]2 }6 D8 c, q0 C z( }9 W9 D
3 K. u) ?/ I5 B1 m- Z# i" Wto setup
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ca
6 @/ ]6 o, q( b |0 a- H( A0 _1 t3 l
2 `3 Q7 |, h6 a8 J0 jinitialize-settings
1 [- G+ Y# p5 ]* m9 i& j1 j5 C3 E; N! N+ r7 z2 S$ N6 c" U
crt people [setup-turtles], J. {7 H1 y) P7 j) C0 Q9 h
2 a+ k/ R% ?( ~8 v. C: r/ U8 o1 Y
reset-timer
0 h O- ^5 k# i1 T& K# r$ y* \" J" q5 L% v7 P; j& C+ W8 C
poll-class
! b6 J7 z8 C8 {) a: v- M- q) k, D, f, ?. j
setup-plots
9 e" R- F C4 v- _6 w. M1 e: y
: b* h% _( [$ jdo-plots4 ?' W: ^. A7 x! k9 ?1 U. Z
end% Z" b5 Q3 f; {; O! a# b
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to initialize-settings
9 }9 @# C% H$ s5 s* X
1 ]1 f) H% b4 fset global-reputation-list []
# H- n% }+ s5 p) Q/ D; w: f; f1 M& F9 f; h) u
set credibility-list n-values people [0.5]% S( t/ |. r; A% f% w1 n `
9 p4 X; W* U7 V8 {) U$ Nset honest-service 00 n d' ~: w9 d, |% w
6 e0 F4 y8 z. s& p: R8 z/ _set unhonest-service 0, z! {, Y! q% p5 B
9 i7 y" `' B' D8 R1 n, Z4 Eset oscillation 0
# \& r. Q0 d% V% Y9 C8 w4 ?* {9 s1 }: `. V
set rand-dynamic 0
# U8 C5 C$ t3 ^. O c: Zend
( z) W5 y# \( @* F' }: X
; j2 R& L/ l* M* hto setup-turtles
1 G( Z! Z$ U8 E+ L9 Y0 Eset shape "person"0 v4 A. c: `' X6 v1 T& N6 M$ | _
setxy random-xcor random-ycor
" b! I( h0 C, ]) s6 U+ k+ qset trade-record-one []8 O1 F) T/ V9 [7 `' _6 q, c! j
& |% Y4 M4 A2 o$ i. e
set trade-record-all n-values people [(list (? + 1) 0 0)]
. f X( d; {- k, j
+ _0 M2 P s% D# y/ R1 I# W( z' Oset trade-record-current []8 [0 x2 K9 a. Z( ~
set credibility-receive []
$ `& j; l4 Y4 I6 m7 }( Tset local-reputation 0.58 h/ z/ D5 K( v9 g ?
set neighbor-total 0 F6 a) M8 a1 q! j
set trade-times-total 0# e9 A# M4 J0 I7 C4 E, C
set trade-money-total 0* s( P: a, J2 @. R/ V1 r3 Q
set customer nobody
8 w2 o7 u0 O1 {$ |6 R, t) [set credibility-all n-values people [creat-credibility]* t. D; l5 s1 N" m8 {8 U& C
set credibility n-values people [-1]
K8 Q1 v" m! k6 {9 _. ?$ |get-color
& D. D4 S4 C$ ]+ {& D) |) W% y) H+ `6 G# ^; i' j% g8 G% a7 _
end
" I) W* ?0 W( ]8 D6 ]
9 b# d% [, T2 [ Qto-report creat-credibility
: m8 B( {' s0 c( x' m: h* R( {, `report n-values people [0.5]; \5 Y5 `- z2 J) m; ?
end# u& ?! S4 m* v& A# Y
8 L( V& d, W$ |5 k7 b- X
to setup-plots
6 a2 S+ s( {1 t8 Y% a6 `
! z! p0 N; }1 g: B- f# K" aset xmax 30
' z! }4 M+ L& J5 M# l3 c' p/ K+ U: @3 `# [
set ymax 1.0
" n9 b" O, V* k( ]( X) P, Y/ m% a& z
clear-all-plots
+ D# G( R: [+ L1 J- h; V% A3 h1 L$ f. P7 ?1 B6 ]
setup-plot1
/ h& p* T( }! `- F& S5 I; R8 M
% ^& G, x4 ~" W y! J: ?) ssetup-plot2
" @! p/ ?3 H+ @. a$ f, A5 o- i6 b7 B T
setup-plot3- Y; C' S# N0 V7 {# v$ I9 s
end
" C/ f& u" J4 e" @4 L- y( h" ~: {8 X5 ^9 N: |
;;run time procedures6 ~$ R4 ?- f" l1 {; c7 d9 L
5 t' S4 e- z* Q. `7 C: m9 ]5 Z, Vto go! v, c# C4 X: c; b% ^0 ~& A8 f. A
4 B% [2 S8 D/ w( H( H, U. X" sask turtles [do-business]
+ u! s2 l0 K0 F+ z: Q5 C* {end. n# n( n, Q1 `6 h. G0 g- j3 ^
+ J4 f( \% @! k* h5 [9 R/ h
to do-business
) [6 f, O" H. `5 j" k( b
6 x3 T, V1 u2 O( P" a; z" M
3 H1 w) O/ P# M/ g2 k) \rt random 360" d" O6 i F! n8 o
+ K5 g$ u( I- o' Vfd 1
% C8 F5 D3 g$ `" S3 {
! A) m8 m9 t1 fifelse(other turtles-here != nobody)[ g' Q, A: _ S; s7 N2 r. v
S+ \3 h; i W
set customer one-of other turtles-here
( }* P, }/ ?& o5 N \0 ]$ v
! P$ P& L9 G/ P;; set [customer] of customer myself
* J+ \9 b, X5 s! X4 R- p5 H/ |% d+ L; g X
set [trade-record-one] of self item (([who] of customer) - 1)+ s6 o( D8 o. W
[trade-record-all]of self
, m$ e: @9 ~% d. D8 t8 {;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 K, [5 F; F$ J6 g2 u: O8 z
/ ^5 N' _! f9 E3 Kset [trade-record-one] of customer item (([who] of self) - 1)& s" }. v, B0 W# {0 O
[trade-record-all]of customer
% v5 L7 {( i! L! r1 y9 [6 z4 G& C: S9 u2 e$ T$ e
set [trade-record-one-len] of self length [trade-record-one] of self0 j% @/ P& F# r6 L5 A+ v
6 `4 ^! R3 p5 z+ s8 C' h
set trade-record-current( list (timer) (random money-upper-limit))
, b I- e. ~) G/ A) f1 a* \4 Q5 \+ k; P
ask self [do-trust]3 o, `- G( ], |% u" [4 ^
;;先求i对j的信任度
: R0 _' R( _, |* q. j5 C3 l5 I4 \, ]. X8 K/ [0 \; ]0 ?
if ([trust-ok] of self)
2 O _6 r# L2 i: p6 C( a7 y;;根据i对j的信任度来决定是否与j进行交易[% C" N& i/ y" a1 c
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 X& Y1 ^: c* c
, x' b- D4 P: D' u( E6 I& w[# N" q0 d* M6 s t1 c2 @
, n2 E: L$ X0 u1 d% ^5 O3 x" s
do-trade
; `4 @' v8 }( [* V# U) x! r, K5 R5 Z1 N0 n" p1 L
update-credibility-ijl
. d' Q5 W# O1 @- r- o
2 Q) a* K% h! Y! i& B0 Yupdate-credibility-list
2 ^8 m+ {) F) T3 [* I
8 X+ y4 q' D; \6 l# d; s+ {! J! B6 o
update-global-reputation-list1 a& S( v1 z7 F& B! w6 T* h
% h/ S; h4 C9 v9 H
poll-class: ? l" g; A L' b, T \' t* D: r
* L3 }% z/ Z# S0 y* E- J2 ]
get-color8 u# f" m; g8 T- _ w
. V& N0 t! ~# E z, A]]: I9 o$ [2 C: m6 ]0 J- o* S& G3 n
( M4 h( e3 X: _& k9 \) h5 C;;如果所得的信任度满足条件,则进行交易
5 s/ i2 r0 r4 D8 D" w8 i3 ~* ?9 F/ F0 m! S/ L
[
8 P$ ~. W1 ^! ?9 c& T7 o. N) O+ C3 s% Y: m* O& r; p& m
rt random 3603 B5 u* r) _$ m Z& L8 V; }4 L# m
* f, \9 l X2 S: g$ E& z! l
fd 1
1 B+ N6 t" S& A; y
0 o3 x4 L, ?9 G# Q, V6 Q]
4 s* k* k# M3 \" Y1 M0 ]" O
# z' n5 Z+ {" i% Qend/ G1 N( A- ?1 {3 q! O: k' ^
- N2 u5 _; ^: N9 } u1 W/ G6 hto do-trust / y6 M* W) J \
set trust-ok False2 R8 {9 ]3 O4 ^7 s9 z
6 `* v( j! |9 f _' ~
# @' U* o; C2 Q1 A( V/ b* Slet max-trade-times 0
3 p2 n1 Q4 J0 v2 U0 Q; Mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' Q) f4 o% q% W @
let max-trade-money 0
8 x8 H4 x. ?( m' A" }% k; Xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 G& |6 @& @: P: n- E$ S2 `9 rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( B7 b, M7 m' @) C0 L. W. @% M; T* L8 H" v2 x+ u/ a
5 M8 w( U2 V3 m% p0 v
get-global-proportion" L2 c8 B1 t) v3 V
let trust-value4 C+ Q8 H e% r1 x/ `- r! ^/ B c6 y
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) E- L. `2 a: k6 i& w: x" @0 R% F
if(trust-value > trade-trust-value)+ V ~% z$ G) I! Z
[set trust-ok true]" m5 f# I6 V. d# {3 x5 p
end
% `: z( n$ d( \5 X- ?4 ]5 A
3 \. ?2 z4 P6 e" a: w& lto get-global-proportion2 Q7 F4 W8 @/ v1 ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 \. |9 L! `* ~2 A( Y
[set global-proportion 0]5 {/ f& z/ p, L2 z* k0 t
[let i 02 `! x& @# a4 Z: b' h
let sum-money 0
3 c' a# r) V0 z; k _while[ i < people]. H$ P% H: R8 \; Y$ `0 y- a
[
/ J- d* `6 \6 z, ]4 @7 L! ^if( length (item i$ W, @! }+ c% B" e/ A; _$ M! J
[trade-record-all] of customer) > 3 )
# r( y5 Q' k `6 V3 t L3 r[
, o# y( ]( _, c# i ]( X8 k5 K6 vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 l+ N; h6 p8 w: P( \
]& i8 e; `8 w6 n
]0 B7 b# a8 Q/ Z T9 E8 f D. `+ G, A9 |
let j 0. V+ X( U# D# E( }' i' B J- Y' f2 ^
let note 0. E9 L4 p) T5 R2 B
while[ j < people]
. o1 `* H/ X# W3 t[# u( u) p+ q( _+ ]+ g. b3 Y$ Q: _
if( length (item i5 R- @# }) m7 m: L
[trade-record-all] of customer) > 3 )
! E. b `; r+ b. \- Y' Z. [[
/ G$ G* J) z& K" o7 Cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). I9 o$ a8 `* X; k
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# A9 @' ?, k; m8 R
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 x _$ y$ L* R0 D# x7 V* V]
- [& S1 g! A. Y9 @' z' b]9 J! t$ `5 J& `# R6 m& m; g
set global-proportion note
1 A. a) ^) R0 J% t9 i5 X: x]" Q4 [" r7 {3 ^ l0 {$ z
end
8 k4 @1 d" w3 g7 ?3 Z/ d& g0 T) n V$ k# ?3 J! h9 h( e
to do-trade4 p+ J0 ~: }. E. |
;;这个过程实际上是给双方作出评价的过程
?1 @( _7 f0 b: Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: `9 C3 w0 p+ W3 U! Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. a! m+ p$ B" b% Nset trade-record-current lput(timer) trade-record-current. C: l7 I% e6 v: x; d8 I: Z
;;评价时间: Z4 V4 t" Y; U2 v4 }4 P
ask myself [6 e- E4 S* j2 [( [6 H5 W% R5 @
update-local-reputation
7 y1 w% ?2 W4 v& [9 ]: fset trade-record-current lput([local-reputation] of myself) trade-record-current' U5 S' u7 ?) v) l0 v: \
]0 i* `; f% I0 `' |! i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; Y0 c% ^% z) P) {6 j; D, g
;;将此次交易的记录加入到trade-record-one中
& y8 e5 w# R2 A! Q5 hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 S! ?- B) t X! A7 j3 t1 o, m
let note (item 2 trade-record-current )0 G( D+ B5 f6 \$ X& y1 G- G2 ~
set trade-record-current2 E+ p1 o8 ?" |2 _& G3 v
(replace-item 2 trade-record-current (item 3 trade-record-current))) a+ b7 U9 V# G( _) g3 ~0 E3 T
set trade-record-current$ w, i7 Y1 D @
(replace-item 3 trade-record-current note)/ u3 W& e9 Y* h2 F/ \) R
, H0 j8 y& n* u7 r
! c$ s( B$ O% k+ sask customer [- `$ l: z4 }; M
update-local-reputation
0 r* B7 f- _, ^7 m8 C! Sset trade-record-current
% d5 c( A d! Y) {3 [* }4 B7 }(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 m& R* c' B- z5 z/ s8 T]2 d8 X. {. } C; _2 z0 I4 }0 L; m
# f/ _2 {) f& i, |7 W; z/ i- u
+ _3 ?3 ^) o; q' N0 O+ f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer4 N3 M: C$ w( q( Z* v
: K/ n# ~9 J9 O+ H7 Bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ k5 N# W p( Y0 u;;将此次交易的记录加入到customer的trade-record-all中' v0 ?8 P# R* c* \
end
+ g$ H- ?: `7 x0 ?8 g, n c6 o8 l4 k; p; [5 |: M
to update-local-reputation
. H3 R( R' r; ~" j7 cset [trade-record-one-len] of myself length [trade-record-one] of myself
7 G, b6 |& x1 \* M8 _8 ^: r: E8 h }
* o8 h7 }' D6 `$ a/ R7 H- k5 h1 D;;if [trade-record-one-len] of myself > 3
) x, y J# c5 h$ z, @% xupdate-neighbor-total6 h) g* e* x4 F, W
;;更新邻居节点的数目,在此进行
& P/ X b* {0 o8 rlet i 3' c- F9 T$ x: U: L E
let sum-time 0
3 w. ?# H( w& a+ w3 ^5 jwhile[i < [trade-record-one-len] of myself]% a! P9 E1 T; k4 T% [
[& w6 k! W$ S9 I* {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 H+ a* M. D. \set i
$ T' L5 o. U3 f" }9 n- U$ q( i + 1)
9 i5 {8 x+ C) e3 y' y" H]
, s) C1 Y O3 ` W8 B4 \9 jlet j 3
$ y- y+ D! m o9 C2 vlet sum-money 05 e) {, j# A2 y7 X M0 l1 L7 @. T/ \
while[j < [trade-record-one-len] of myself]
; G# j, m6 R7 M0 R$ v, S P0 J[: O. A6 ]1 A' z7 Q
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)
8 T( z! r" r6 P* Cset j* `* l; s5 i- {
( j + 1)
- g* @1 P3 d, s9 c4 H' m]. W0 x1 V3 d/ C, ?& H# A
let k 3
' s6 h& d: {1 K/ n# plet power 0
% `# n) P& p* [' k" P8 [# x0 Mlet local 07 a) D# J5 ]. ^0 o' m! U2 }/ f7 S
while [k <[trade-record-one-len] of myself]
; U4 u+ v! E4 |; D9 \1 f2 S[
3 ? z3 n! _! m+ x5 y0 Q' f8 Fset 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)
t' }6 u' R" F" t. i. w# iset k (k + 1)8 L' Q' \! p2 T8 |% @
]
/ t* w4 D. `! S( F- N {set [local-reputation] of myself (local)! t( ^9 f, W0 m# t3 G- e
end
2 A* Z' F! ?2 M) k* @
* ^2 W- P1 \2 B, C p0 l7 ]5 P) `to update-neighbor-total/ ~+ [; A5 K z) \! U1 t: F7 g, b
8 [; t8 O* W* n7 N- }
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# V% L6 N2 Q# _# k
* e* r7 @* ?/ b& |
7 s# \" F( a* Rend4 k1 D1 S! |( d* T2 `5 G% J4 M
2 E! w c. d0 o) oto update-credibility-ijl 4 J2 ~6 ?. @7 h5 X
2 Y3 Z3 E, h4 N/ w/ Q/ y;;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。
$ D8 x5 U- f5 C6 vlet l 0
) }' R* E7 F# a) m* V! h; Wwhile[ l < people ]
2 z8 _1 }( J3 J# x: A/ e) };;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
w# m' X7 ^ w4 f[& S" N7 s; t6 Z! P! K& w7 H8 G9 e
let trade-record-one-j-l-len length item l ([trade-record-all] of customer), V% U6 |- b( F3 U
if (trade-record-one-j-l-len > 3)
! B$ b; C& n) h( U1 ^: ]9 P[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
$ c2 ^) s) \; G# r$ s4 n7 elet i 3
5 m. u7 i9 a$ glet sum-time 0& s4 d3 j# b( ^' E
while[i < trade-record-one-len]
+ @' U8 j/ i2 M6 X7 [" s[' y, Z4 \1 d m* k4 U2 \; o8 D
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ D. c6 i6 D1 u& O! rset i2 t+ h2 L+ U7 e2 d1 s1 E9 o
( i + 1)
: s* ?3 |: {" d. G4 w* W]9 V, Q4 S+ c6 J; i( L
let credibility-i-j-l 0" Q' o6 f5 v4 q. l3 O) \( w. \
;;i评价(j对jl的评价). b8 e0 A+ a* W$ I' D" ^8 l
let j 3% Q& y6 y9 m! i9 Y3 L
let k 4
6 p6 i0 ~: U% a |/ A8 S! ]while[j < trade-record-one-len]7 `. v: ^- [0 m
[1 P3 Q M8 U$ ]( _8 k3 T
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. {$ r: }7 h+ z
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 m1 _% i5 N3 J8 jset j+ u, Q% j v7 P' x+ C6 |$ R% Q2 m
( j + 1)" N1 B$ j& g5 x2 a" h8 X
]
, Q: @4 i1 I: w/ U9 gset [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 )). z7 q3 D( \. l+ E* p$ K# F
* F; _! ]' U/ V5 Y, Z5 V7 Y; A. m
: b' j" K U, X4 f; blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 d1 V$ j! n/ B% {% l$ [
;;及时更新i对l的评价质量的评价
2 x: q" }$ R8 S2 fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 N2 Z4 Y& {! |! r6 [4 E* N' F$ l
set l (l + 1)
$ J# B7 S T; E4 F m]4 U7 n3 T0 e+ {0 }
end" \# V& E. u/ @
& O% U- p- H0 n1 ^! @4 j/ x$ _to update-credibility-list$ |. ^- A% y% Q( h0 A, X/ r3 }
let i 0
4 \' Q2 H! ]- I0 A: q% swhile[i < people]0 p q5 b4 y, O
[
" ]% U/ O! C9 K& Hlet j 0' W+ n% p3 Y& [& F
let note 0 L* o# w8 _# L& J0 L+ p& g- @! W
let k 0
3 x$ V" A9 k& N& f+ W;;计作出过评价的邻居节点的数目
1 ]9 j ~0 e7 Fwhile[j < people]
6 K$ N* z( K/ {3 d$ b7 _0 j S' v[) ]; r& E( D/ `( B& @9 H1 g( Q( \
if (item j( [credibility] of turtle (i + 1)) != -1)
& e, _, [ O/ Z( T; D3 \+ n;;判断是否给本turtle的评价质量做出过评价的节点
# P' M( E' V1 n0 O5 U7 Q1 o[set note (note + item j ([credibility]of turtle (i + 1)))
& y0 Q) h, k" `& y) j- i# |5 g/ h# };;*(exp (-(people - 2)))/(people - 2))]7 Z) S Z+ ?- a
set k (k + 1)
/ _$ ^2 g# y8 t' N# }]9 C0 i1 N/ u8 t- Q+ Q
set j (j + 1)
, C" B0 M* U( p5 k( \/ S) I]
& M6 a3 L& u! ^5 u- R2 Uset note (note *(exp (- (1 / k)))/ k)/ M/ t0 u0 A% W& r' [; H; Y( n* i
set credibility-list (replace-item i credibility-list note)
( H9 e( }% O! f7 Z5 [set i (i + 1)/ ^9 Z- t t) y8 U# K8 d
]
l9 R6 C7 J) c' c3 Iend
! i4 b1 [2 v7 @6 r' _6 A1 `! d1 h! V' A
to update-global-reputation-list% f* D8 w% o- Z* R, l1 O
let j 0* r$ w! }5 `! h; P J, f
while[j < people]+ }" G& t* F9 O9 z, ^, T% O. u
[1 A: n$ i) o6 C/ ?% C( u
let new 0# V- p4 E" ]4 K# Y9 A8 D
;;暂存新的一个全局声誉
) h4 r. p/ p7 V; \# Flet i 0
" M3 t& E* t7 c* s2 Jlet sum-money 03 S8 R7 x, f& {. L+ p
let credibility-money 0
% W$ C3 ?! a3 w7 Rwhile [i < people]
/ i! n' R" k9 P+ x' x! a" t0 T7 s[
# f+ p" o# \7 F' ^5 \+ W. K( m( Bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 e# ^$ q) H: u- j# ?1 cset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), o6 d' F7 K6 ?. f2 e5 N% D& J+ I2 z
set i (i + 1)5 h+ u' e; h, s" g) J! v
]
: K! H; m2 M- \6 _let k 0' j# `, `: e8 F# s. y
let new1 0$ u+ ~0 n# v! T5 M8 i! ~ r. m
while [k < people]
/ Y( [, ` K5 t[3 t9 d( q |- P4 i2 l
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). l, y. n2 K* y* D, ?
set k (k + 1)5 o4 x- D& Z- e% f1 ]
]
! }! e; w+ n- D1 X6 Nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; f! d7 S. _- K- w; X/ t
set global-reputation-list (replace-item j global-reputation-list new)
0 t _: x; x4 f+ |set j (j + 1)* B( k3 X( I9 h! U; |
]
2 M. N+ m9 @6 h Aend
6 H$ z0 |& u }3 P: j i3 h2 z% ?
2 |1 n/ v0 C* q0 A* {* ^' ^
& [5 B, {' K+ Q8 P4 t
8 Q) ~4 n1 o) Y cto get-color3 f% k- D6 ^' _
k+ W4 Q7 @& ]! t* Y* m% ~# eset color blue
7 }" j& z" W. p8 Rend
, D' G' ]6 N5 k9 z8 u$ W* }5 F; o) s
to poll-class2 l3 A2 e# y: X, t( T
end; S& o- y. i: G7 w/ V
$ @/ A, @* D# B
to setup-plot10 C1 M8 N6 L# I, _' D. o, P
% H; Z5 Y' d7 c- @" E" h5 X3 uset-current-plot "Trends-of-Local-reputation"$ B& e: ]( }2 I
0 |# v. v7 S7 W3 _set-plot-x-range 0 xmax4 s( B4 P/ e H9 g4 `
5 h% u' S$ p! T
set-plot-y-range 0.0 ymax/ I* L5 o+ U% V
end
' b. f6 z$ x9 e1 q8 Q `6 ]* b, Z( X0 p* Q, d0 C$ \( n- Y% D
to setup-plot24 m4 m1 Q6 ]& O6 T* [4 m4 F
$ R- l1 K/ P/ u$ k) F/ g
set-current-plot "Trends-of-global-reputation"9 z; u y+ ?5 T5 y+ o6 K: |
/ P3 C2 Q: r$ p e6 s1 k' f
set-plot-x-range 0 xmax
9 ]5 F+ q& a5 k
S6 I; x6 I- C. D8 y. Zset-plot-y-range 0.0 ymax
+ H) R! d3 m7 x+ P w; Xend+ P" @! F- E: Q* @3 e/ n, d- A
9 [& ]9 p1 D, E4 _$ ]. t
to setup-plot31 l* {7 i# y) `( L
& X W: Y, a. l0 yset-current-plot "Trends-of-credibility"1 M( J/ X* e' `4 k
/ F: D; w1 j3 Q2 m8 |# H" A& k! Dset-plot-x-range 0 xmax
3 i, C7 ^8 `1 B! y! P+ w' U# t' i* U, |, a. }% l' {
set-plot-y-range 0.0 ymax
$ J4 \/ h& i- oend( N% k( g. m; z" F# f
. F. v2 C( y+ L6 @2 g0 kto do-plots
/ r% A M6 x/ A& g# g7 }9 Nset-current-plot "Trends-of-Local-reputation"
9 F$ W/ P8 C' x' }* gset-current-plot-pen "Honest service"( h$ M. P8 @- ~* g/ v& S/ i% V
end; m: l9 c" K9 m5 L
3 L, a! b! k/ E5 ] a& @1 t, y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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