|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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7 e0 I7 W% M+ C$ L
globals[( j; Z$ W; f* d8 d5 w
xmax3 n& O' i' o7 X" k! y' t
ymax
$ T$ }' I* B& N6 {4 zglobal-reputation-list
1 y" t4 g g' b. x9 y5 s2 ?" t* B6 ]* i1 g, w3 d$ d8 s
;;每一个turtle的全局声誉都存在此LIST中
* L7 B( n" W& ucredibility-list2 R4 C4 t! a; L4 r9 j+ h# a1 c
;;每一个turtle的评价可信度9 C# H$ {% L3 B8 z# r
honest-service" M8 y5 @5 D: ~* W2 m
unhonest-service
* {, k7 L" T6 h3 C$ M( l: Goscillation$ h5 P( ^6 X+ f! E9 z
rand-dynamic
9 ~! ~4 U7 j) D]2 p% o$ \$ A+ L* }0 ?
( e1 @# _7 Q) B [; ?turtles-own[
3 N9 ~% }% E8 T1 c# E0 Ntrade-record-all
# f/ R+ R& u2 O! |0 d& z; ]. ]& T;;a list of lists,由trade-record-one组成
9 |. b) ?* \0 K) h; n% r* m1 Atrade-record-one
& A3 J! x. K6 v6 Q& }9 D- z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
' m( Q& E% N8 A# w H) @% B- g& B! O- R6 [
;;[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]]9 g5 A" a3 }" x6 Q2 V, A
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 k! L6 t6 Q& u9 G+ t; `& [: c
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* ?+ x9 O. q. [% U: }$ O
neighbor-total |+ i; I' i- \3 o
;;记录该turtle的邻居节点的数目
. d5 f6 S7 c; G3 h- f+ @* dtrade-time
( j# q7 G q6 E S \, z) e;;当前发生交易的turtle的交易时间
7 W. F3 G4 t- V5 v' w, Iappraise-give/ T- ^6 f9 g. G: u
;;当前发生交易时给出的评价
5 G' B: F" L ^% nappraise-receive4 G$ W6 E' d* Q; B. v- S& P
;;当前发生交易时收到的评价% X4 o# F1 _' Q
appraise-time
1 _$ k) X& [! l; ]3 \;;当前发生交易时的评价时间
0 v% d0 f; i' ^1 G% {* A3 p. `local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- V+ i0 ]/ ]2 ]1 {5 i: ?! T4 Ttrade-times-total
! c" P! M4 D: t* W' ?8 j7 w1 s6 b$ Q1 s;;与当前turtle的交易总次数4 g7 n5 K2 q6 }; B' J
trade-money-total" G5 y8 R3 c, q' E/ U
;;与当前turtle的交易总金额
W- L. M) a( jlocal-reputation
+ j5 F5 ~$ k% S# v) Uglobal-reputation
7 N* R# z. D# b" {$ k; ]2 mcredibility' q1 i2 w8 ^* ]% u
;;评价可信度,每次交易后都需要更新/ U- w) N, D9 \1 i* l
credibility-all
, o# [" R! |0 G# w2 D;;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
, I$ Q& N8 H, F: v4 N7 E
7 C; _+ ]% i1 _;;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
) B4 m, W0 j& ?& ^8 T2 T% i Ccredibility-one
7 K# k: F1 |* [! D4 q' O& B;;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
, k4 N2 ^- o3 cglobal-proportion& L5 Y) n+ t7 S. R9 R$ Z
customer
" l9 l# b K/ E& K U7 bcustomer-no
/ V2 |1 y- d7 Etrust-ok
) D- _. k$ q* k7 M6 e8 h( htrade-record-one-len;;trade-record-one的长度
6 d7 R. C; R2 j]; a; X* F$ Y/ s8 |% z8 S& _
# n7 d2 x6 J) U) o: C0 a
;;setup procedure
6 v- o. U8 `; j# \( F+ Z+ n
C( Q5 e! v$ Z$ j# e. `to setup5 ^- s* h% F1 D% A, j1 _9 m
2 {" W& f+ A/ i6 ?6 H( Ica
" u& C5 A- X8 G
( Y2 i6 c/ M4 @" \; o5 dinitialize-settings
3 Y/ \6 [( X6 e5 A9 W/ C1 K
- n6 _! A% A% T; ~6 \crt people [setup-turtles]
! ^+ s! b5 ~& T. D6 ^
7 e s& \" b; f! G- o8 Hreset-timer
1 C& O J. {( v# A/ d8 E$ I% L) V, i% A
poll-class
' A% H. ^% S% c6 h8 z1 b
* d2 r8 Q- [$ @setup-plots* O- }+ }& f' Q1 Q7 k
0 M1 L. |7 B! f/ d2 I5 t4 {, Pdo-plots
8 Q& `$ b* s+ T: }4 a ]; b4 Cend
0 \$ L' Q0 b, u u5 d6 a$ F& F, ]$ @2 X4 D, U& o
to initialize-settings
Q. h) Q# L* [
0 c9 @3 q7 P! ^( ^; `- `set global-reputation-list []: A/ M* O9 _1 I2 Z; \ D: C
! f3 Y% g. h: c4 T! |
set credibility-list n-values people [0.5]* p" g9 Q$ ~/ o/ U# h
: }: u% I) Z6 F1 Y# h9 K
set honest-service 0
D2 s; `8 l4 b7 ~ _" d
, `* u5 r3 }# [' ^set unhonest-service 0
& `' U% j" V( E( e1 V
; Z( d/ |' N4 n9 }2 E4 n b8 p" \set oscillation 0* K6 j: r3 G5 X9 b8 D
9 I) A- l/ p5 J6 J* v+ f: p; Hset rand-dynamic 07 ]$ B& W' M5 [) d1 Y
end& E& `; ? p8 V; d+ [, i; X
, P! e! b. B3 q$ r1 Dto setup-turtles
+ O2 j5 g5 O, V% v$ g. @3 mset shape "person"3 L) J# t- _" Y5 O/ A$ m/ E. K
setxy random-xcor random-ycor4 s% Y" y, T: i% R( s
set trade-record-one []' |. V1 w @2 [5 [7 G6 J
4 K" `2 l* a9 r8 n' {5 U2 u* ^
set trade-record-all n-values people [(list (? + 1) 0 0)] ' O; j# V V) V
! _2 a; i, F$ S0 x
set trade-record-current []
. p# x4 R0 c5 U6 a1 pset credibility-receive []( t# h+ u" H% \# U
set local-reputation 0.53 y; N3 E# @! Y) w: m, P
set neighbor-total 0
' Z( H/ O/ g, Y Fset trade-times-total 0
- D9 v0 t- h; ~0 P0 Y5 yset trade-money-total 0
4 [' y: K7 ?! {set customer nobody9 d2 v& N5 {: ?9 C
set credibility-all n-values people [creat-credibility]8 n7 g8 h! n, p# c' b3 `4 s
set credibility n-values people [-1]* j. L# [5 l3 T7 m1 \0 C5 B( k, w x
get-color( x* {4 w |$ L- K$ h. u/ n
4 [0 ~ q% r* R Y
end1 j! l' f. h) [5 e4 x
( V: `) D1 ]0 p p' z ^ Lto-report creat-credibility
8 T, u9 K/ J2 @$ s% m$ J/ E) L5 W- Greport n-values people [0.5]
1 o7 \% [* a3 Q/ U/ O( u! t) aend4 F( C( ~1 a, ]# X
0 A3 s1 p( a0 L! ]' S
to setup-plots7 g S' n" E& O+ q' `% m/ z5 y
+ \5 M7 h: d) J3 M$ m" ?( ~+ G @set xmax 30
" ?% Q0 D# B6 m. w/ t |+ k5 P. p1 b, u; q6 q8 \7 }
set ymax 1.0
3 [0 n0 l- z9 U3 w2 ?- R! X% e# L% f" @( z1 X
clear-all-plots
5 z& X! z3 ?0 u2 e. x* c& y& b2 b5 u, U. b
setup-plot1
& o1 _$ k1 [3 z U J8 m* z) y3 \8 S6 Q# {2 ^$ e4 F
setup-plot2! J) j* r0 l! u$ x3 f" E E; |
; }' a/ p2 o: s& P% Fsetup-plot37 z1 S: c: o: l7 J8 }
end. l& [4 I" ^8 m: w
" u. W* q" F' v7 A;;run time procedures$ L+ H( u5 c K( P/ f; t9 C% L6 q; [
$ d( z; h+ p6 }2 O7 Q( Fto go3 W! u. u& T& M8 n
! S' d+ x$ Z9 t# `' @ask turtles [do-business]0 i; ^: ~. }& f8 e4 p
end
7 J# n) ~9 a8 Q0 j7 Q, R7 `
3 \! X, @: G8 v6 o- e% [4 R, p, rto do-business
: o9 m! t- ^) r" k/ w# e, g9 g6 U8 U& _4 P1 C9 E% i
- `% J2 ^, M; v; N$ ?1 f9 l0 q
rt random 360# j/ J! b) u2 |8 S. ~" i
6 ?* r) w- p9 L: y" j2 m& x3 E8 }
fd 12 X9 I9 F! j& y) n Q5 Y5 n
" p# p u! _' K- W0 K# m- ?
ifelse(other turtles-here != nobody)[
- f( K% e5 T( z r/ M& ~
: h9 [* A5 t; }) ]# ~" p. nset customer one-of other turtles-here
* R, Q) q! S; Q/ {! ]8 k, a& p$ P1 I7 t) B3 c6 K7 r8 R b! I' a8 V
;; set [customer] of customer myself: ^/ Y( ~: m+ ?% _5 d4 g
6 f( _+ F$ e, O9 K9 S. }
set [trade-record-one] of self item (([who] of customer) - 1)2 E5 {$ C; V9 |1 y
[trade-record-all]of self5 E$ Y4 W, ?+ g/ B0 v7 U6 s
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 x! L7 ]! E# m/ q \) P* m8 K w. ~. ]9 k0 L3 B
set [trade-record-one] of customer item (([who] of self) - 1)
: T+ v+ x5 r& O" Y[trade-record-all]of customer! o1 ?1 v' G$ y/ |5 U7 f
8 T1 K/ |9 o& g% u
set [trade-record-one-len] of self length [trade-record-one] of self- \: T& ?& n ^, K! P2 w6 |
, |) l+ u- t# P9 n5 @9 M" n, ]set trade-record-current( list (timer) (random money-upper-limit))
6 x7 G3 N" I1 ^0 j% Y9 s; T- Y7 R' @2 b+ x" y- y
ask self [do-trust]6 Y$ L9 ~; j* R1 K/ Y
;;先求i对j的信任度
n* J" d& g% }# ?. `5 T# t1 }7 t9 Z- ~! n! D
if ([trust-ok] of self)
1 [9 J1 h; ?1 g5 @: e+ b;;根据i对j的信任度来决定是否与j进行交易[
- ^2 w6 q( b0 Rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ a2 P% n, \% K) f7 \/ K% p! L
1 ?, i& Z/ D9 l' u# a( i8 l[) e7 X( D1 | }2 N- F+ b
' G7 ~. n( @! k: O" H! Bdo-trade8 t# w* v) Y+ R) m0 _
) b. J& |' y; E0 X# ~/ }
update-credibility-ijl
$ Z7 N1 c0 o+ f9 N: ~' r& @; F0 a) S& b4 M7 K* x- E
update-credibility-list. B$ v9 y! h( k' V& g
. i2 {$ I3 d6 s- K; ], ]' I: p p
update-global-reputation-list) l2 y1 I) e5 K% {3 C4 w7 H" r
3 l- X n; L* d+ cpoll-class
. |) l- E q1 H9 }( ^
0 E: ]# q) r* x3 Y, p/ w' W" r3 Mget-color! j8 n& K) a8 L& N2 \/ e
9 X* ~; l D% O) A]]
) l) B# Q1 ?' \' k# p5 C
/ `: L, ?1 Z) r7 u;;如果所得的信任度满足条件,则进行交易
$ e: h- U; B5 _6 _" M& B6 ^, O: X- Y
[
$ X& j* u, Q- C7 l4 L, U6 U# p# o1 ?, [
rt random 360
0 i, i5 F0 N$ E2 n" |1 Q, t k& c" Q" r" k- C$ {
fd 1
5 r" ?% Y2 z$ i/ [6 ~7 c8 [1 g9 k3 K0 t6 y ]
]( t7 h; K/ l# |7 e, G, i/ N; [
0 x4 h' ~. Y/ K& s# e% d; Pend$ H2 p0 h6 a* h* G+ c* D9 n$ n
4 s$ p- b9 y1 b1 c8 P- h" I
to do-trust . @/ ]5 M& L/ w% D
set trust-ok False
4 }6 \+ |$ x. w( h9 J
& V4 O# D U2 f$ t+ ~/ ]
/ a' o4 A8 a4 w6 Slet max-trade-times 0
* |3 m; J" M% M& e7 B8 ]; dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 r g( z! W+ l- X9 G9 rlet max-trade-money 0
6 U& P5 W7 s0 M& I1 E7 Mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( L; z9 g \& T
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 B6 l' w; B" K' w' J
( _3 ]/ S8 D# W# f* g
+ x* K* p+ a( |7 O% L, h
get-global-proportion
4 l3 l7 u) D2 n/ ?let trust-value
# P, `# I/ k" T+ Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)8 n, g! _3 H5 c# h" E
if(trust-value > trade-trust-value)
6 U# Q; o- ~ H& x[set trust-ok true]
: u, c% L5 f$ ~6 Eend
5 I4 C$ C8 j Z j% E' U- j% K
9 D4 e) h- b5 U* f) j ^/ Rto get-global-proportion# P ?7 C) Z5 H; g: F' H2 S% T% T( v
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 G3 `: V. p0 Z[set global-proportion 0]/ b6 k* q' G3 A0 ~
[let i 0
4 J2 V. n+ B* M* F. ~. Elet sum-money 08 |* l$ Z1 P2 S6 n+ i
while[ i < people]
# G6 ^! D- b0 o q. o( r[+ s+ k$ Z' x. y# v2 O/ B* J4 e* z
if( length (item i' a8 B2 n/ v/ p6 B3 c
[trade-record-all] of customer) > 3 )3 k, y2 R$ g: o& o3 t! C
[
* a- N. j/ v1 s1 \, Gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))" c" J; g; X+ W0 g% E! B1 \6 M+ w
]+ w: N* v& Q( C; o1 A. M/ S
]
g( x5 x/ y7 r, Y/ P9 wlet j 0% W, j% P+ G; O. J- `; y0 X
let note 0
3 t6 Y+ s# r; h5 D$ C" Dwhile[ j < people]
) R2 k1 ], t; Z8 L% U$ \[, p: P% A. X- a' _* J9 p
if( length (item i
?/ e" M& {+ J2 ^, C7 K[trade-record-all] of customer) > 3 )
: h' W6 p+ y R6 Y; B7 ]- ^[
- L7 u, c8 {3 f6 T; cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ J0 s3 z: ~9 R; d
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 u( {$ K. C/ N, K0 i" O; V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 K* x) E; M# h+ c# f
] `- s9 P Z* Z/ E
]
) Q4 J' L6 p' R, r4 u) W1 Oset global-proportion note5 ~2 ~- ?5 Z( _7 o% T3 \
]; E) V/ \+ d5 h: l
end
* r& Q4 r! ?( L+ `2 y- R, @# C& b( ?7 ~# f! w6 Y0 m6 R- f; q
to do-trade
( J" e. X% k; q- @- L3 Q+ u;;这个过程实际上是给双方作出评价的过程( k3 |6 N6 P3 G7 p1 Q( t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
" Y ^* b ^; D. C9 N8 x% s8 ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 u0 r" }, P( T0 {/ f | tset trade-record-current lput(timer) trade-record-current3 f# b x. m% o$ a2 w* _
;;评价时间, W: i) I% y! F! V6 k& X' ~
ask myself [$ p- Y3 R; L0 M- Y' d
update-local-reputation
I3 {7 q* r! H) ~2 u3 kset trade-record-current lput([local-reputation] of myself) trade-record-current! ~) F, K0 H! z+ f1 o
]; |* x8 U8 Y2 ?4 m' g+ O) @
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 U0 I4 _! n% ?7 [0 J! g;;将此次交易的记录加入到trade-record-one中6 L; _ v+ \0 k: K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ {/ v1 U$ c& @1 _5 @% ~6 t
let note (item 2 trade-record-current )
8 p6 |: u+ w$ q1 G% kset trade-record-current
4 I& v* k, z7 B# o(replace-item 2 trade-record-current (item 3 trade-record-current))5 V5 A) f# G0 C1 [8 w
set trade-record-current& S; D/ q- e/ u: r
(replace-item 3 trade-record-current note). r1 K; u7 @3 k8 X
1 O* j4 G" X3 j6 u9 R# \# F0 G' M6 s/ }* j A, J
ask customer [
- f) ]0 z: ?2 K5 Vupdate-local-reputation8 x# w- Q' X$ k2 Q
set trade-record-current
% Q+ f3 } i z6 y# Y$ N# @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 m0 Y( N) w; e2 r/ ?" ?! j
]
/ s& c; o( p& I8 o9 O& {1 D5 q7 u3 \9 ]) h- B- @( l- N, k& U
7 [" G$ `8 ^8 R B; e( V7 j# [set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 p$ V- d& e1 w! d4 ~* @( w5 b+ k% d5 U
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). ?9 p' q( S7 [) ~8 Q
;;将此次交易的记录加入到customer的trade-record-all中, d$ ?$ j; C; h0 w- D
end1 r! v8 H; a8 I
9 ]$ V% @! i# w; P/ {) \
to update-local-reputation
; n% a2 z8 r P7 Mset [trade-record-one-len] of myself length [trade-record-one] of myself
; @5 k0 Q. s$ m+ G& B3 `8 |' T1 s# T* y
8 @# s5 i% J) V* ~
;;if [trade-record-one-len] of myself > 3 _ j- `; |5 o1 o$ T
update-neighbor-total3 N% F, n. ^8 P. M& s+ d" X1 O
;;更新邻居节点的数目,在此进行
' i3 e6 w1 w4 R& D( s; ]let i 3
( L7 P7 r$ n- ]; N9 p3 wlet sum-time 0. k% Q6 b/ N! r
while[i < [trade-record-one-len] of myself]* V: b, o" r# o" q
[
' e2 O0 Q% d1 p9 C% N0 ^set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 V. f7 \: Y- w) m. uset i# O" s2 a: _5 }; u+ l- o: y
( i + 1)
6 C) z: d! H v]
+ _/ H( o) c% j& F6 S& g& Rlet j 3
+ c( i4 D7 q4 g( J' E3 A- qlet sum-money 0+ `8 Z4 H, f$ g8 O8 A
while[j < [trade-record-one-len] of myself]8 o8 ^) Z4 K3 `) H' I! O0 w' p
[
1 T$ c4 Z: w8 h) {: ^8 `; n4 eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
4 o1 f7 D" g* @1 f8 eset j( s- P3 A# Q; b
( j + 1)
, z6 @) z' n/ u0 {9 }3 o]
2 ?$ F O+ @& H3 N: X% a9 h Glet k 3/ ?8 ^. h7 `7 F9 k
let power 0
" C" h( H1 ]! y* }6 _) Jlet local 0 I+ m; N6 e+ l5 I* S; X7 {. y4 |
while [k <[trade-record-one-len] of myself]
7 w' M* y/ M" N4 w6 [" l( l[8 p% [, ~+ e }" Z3 t
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& [' {5 h# O* g" r
set k (k + 1)$ I7 k. U7 n, k5 ?$ K/ {
]
+ f7 q" C5 y" Yset [local-reputation] of myself (local), `4 G9 p, [3 {( ]. `% T
end4 d: `- I% ^, Y: o
5 V3 N. _! C, A6 j, J# \to update-neighbor-total
& Q6 S7 \6 w, I2 A* Q
4 |& K1 `4 g7 w$ bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. x1 I! P& X0 l K4 ?' x: \+ ~! W
4 `5 D0 p! h- B, C
! C8 _# A2 L% [, Mend
# j( u3 Y2 m+ h9 y
% Z4 Y8 S% z9 Q3 Z/ nto update-credibility-ijl 3 B9 v4 u, n! _" J/ R' g) [! B
1 f! W2 c6 [( F' y1 t;;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。3 r, ?3 u/ X$ |1 f' m$ l% k+ U
let l 0
% q1 J' G) J' D3 C swhile[ l < people ]
+ a( a% \) N- w6 S- D/ h;;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0 i- [4 {3 L4 v! W4 h
[
2 G; k$ I) ^3 I7 ?. h; B/ rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)) S' g$ o) H, d0 j6 K
if (trade-record-one-j-l-len > 3)) V% i; b* G$ c9 U$ x5 e+ d$ H
[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! w; ^/ X' R0 x% m7 S
let i 3' `: X( I* b% J# c
let sum-time 0
7 B7 o$ U7 n# u* s. S4 ]! ]while[i < trade-record-one-len]
) w8 `: z) l/ |$ ^- V! o[3 @7 v4 s6 F" o6 h5 D. ?
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& R7 n- A: P! r V8 U, g* o
set i
) W5 \ f( @8 ^) o8 n( i + 1)
4 M0 _' V: M3 j r! d/ X]
& u' G( q n0 ?- ~ g& N$ J7 a4 olet credibility-i-j-l 0
, w' d1 S$ Z# \( E" ?;;i评价(j对jl的评价)1 v' s. w5 s; m7 I
let j 3
4 G3 A' e4 r. ^$ mlet k 4( d# U! s) f# |! m) e- ^
while[j < trade-record-one-len]$ E6 z9 k" Y0 t7 ]2 G( I$ m4 O
[2 I [' T* F& Q% \; z) h
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
* P# t F7 q. f8 A$ Qset 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)+ |# d+ h: w! k* _2 h
set j
( @+ Z [1 n$ r' t( j + 1)6 G2 u+ Q5 k# h& V) K/ }" ?) Z
]
, Q0 o- o, M3 f$ S; ]5 U' Uset [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 ))
; M1 d- Z9 { B/ s3 {& M$ ]4 E: N) R: E
3 d8 e. ]6 F- Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 S! L$ f0 F# p. K8 h;;及时更新i对l的评价质量的评价
7 \1 v I: l G# K3 kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 N# E% C+ ^5 z2 G) W
set l (l + 1)
% ~3 `- U$ |' M7 x, S]
" W+ {6 J5 O" rend
1 {/ k0 ^' m( Z0 i) r; m* p* D& y% W' s
to update-credibility-list$ {& a7 p" b: L! D; c. Z# e4 K
let i 0
}4 S* u1 _; }while[i < people]
$ _/ x# A' P- Y5 m[$ d5 n2 M. N G
let j 0; ~" J* f2 E8 |2 G
let note 0
+ e2 k& m6 j: r8 }let k 0
& L0 j7 t. E" [! @% Z% [;;计作出过评价的邻居节点的数目
: o: I/ p1 v- ]$ uwhile[j < people]
- j, T8 Q! @: Q* d1 g( U/ R# x+ t[. O5 [( @: j' \
if (item j( [credibility] of turtle (i + 1)) != -1)
& J* k8 }5 J$ _- k M;;判断是否给本turtle的评价质量做出过评价的节点9 w7 P5 f6 P; Y9 j% M) i
[set note (note + item j ([credibility]of turtle (i + 1)))
8 u4 Z" n f" n" g$ F; h6 B2 P;;*(exp (-(people - 2)))/(people - 2))]0 y4 g1 Z: U; w# H z0 J
set k (k + 1)1 i5 M% k: [! G# Z1 B
]% N$ x7 U7 p8 C( h( n" W; ^
set j (j + 1)
i* ?! ^! G/ x D6 a) L" I]
- o" U4 t `) D4 kset note (note *(exp (- (1 / k)))/ k)
\3 Z, \, H8 ?2 oset credibility-list (replace-item i credibility-list note)1 B+ H) e/ W/ D( G2 m
set i (i + 1)% N/ V6 i- ], B3 x2 i% {6 k
]) ^% u( m- q6 f* j# m% D2 K0 R, _
end/ A8 F: F: J; p
4 g! Y' I6 q% T% ~' K9 ~+ M) t6 |to update-global-reputation-list
6 S |. n& b& I% E- Wlet j 0) q7 Y! `8 g7 E; ^
while[j < people]7 n2 y- H6 Q+ D2 y* [( x
[
- _1 Z. s% {: t4 ]) X7 [. Alet new 0
' F- {% ?9 E3 a! A; f, X- Z;;暂存新的一个全局声誉
2 m& _* |' f) ]1 o7 Y Alet i 0
$ S( K( W0 {' g% blet sum-money 0
4 } J. k! x/ f6 ]! w& Nlet credibility-money 0
- h" n0 Y2 C- k g/ Awhile [i < people]
0 g' {' i) P- [5 Y[
$ _. D. e) d8 N: c4 pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 U# l( O# f) w0 F' f
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& Z5 c& @6 B; `: u
set i (i + 1); B' B% T" g) F5 O2 v- g+ d4 y
]+ d8 Y. Z4 O" ~ G% ~- p
let k 09 E& Y3 P+ p+ q2 g N3 H/ @
let new1 0
$ z1 i, n/ d& f, c0 a$ @4 wwhile [k < people]1 y, g3 b" G0 z' c" h8 v; e
[
* c, ~* A) E6 ?; bset 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)0 [# f3 n& }' _1 [
set k (k + 1)5 f- c4 {* t- c3 o6 s6 v# }
]7 a5 Z7 k H% G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% Z, {" t: ?" U ~6 _5 O9 j' Iset global-reputation-list (replace-item j global-reputation-list new)/ j# O3 b, D, o) C
set j (j + 1)
) w% n* U, d4 G$ i- ?]% L# C- M( h: h$ Q4 Q: B" m
end
* a& }% |: a/ q- O! E' g6 Z# V
7 V8 r4 @; p- s! f6 ~/ _) D P
' T5 n N- i c: W( P8 d+ h* P, x) k5 d& T+ y# `4 a
to get-color, D/ ~' f* J! ?
+ v# Z' \* E, o) t9 fset color blue1 B/ F4 f. N' s* H6 S6 n
end
( ~) z' l) V! n3 c3 T, ^) h e0 N- d, ~# T+ T
to poll-class/ L1 M1 j* c' N
end
& ^, _4 C8 A8 Y; ~6 V3 K6 \$ _
, S* U1 Y- `- @( |/ x' _; I4 kto setup-plot15 z7 F& j: V. \! `6 t
0 {3 u/ e' z# m# X3 \
set-current-plot "Trends-of-Local-reputation"
0 y+ p D! A# n
: f7 P* ?( i2 O) P) n8 u% F' cset-plot-x-range 0 xmax
o% t/ h0 w& P# k% o; J- i9 l' h
# x( y- n; g( T; b& q. tset-plot-y-range 0.0 ymax
* Q+ Y# b' ^! I3 H5 lend# J! w+ ^3 ]+ S& @
# l4 ~& u- R0 z) g Z6 J4 }2 b' Q: }
to setup-plot2
" @2 V5 v& S3 \
0 L8 H0 a/ m# z( b# Pset-current-plot "Trends-of-global-reputation"
5 r: F& m" y4 D4 u4 H+ j; {
. D- B" h$ x! P# tset-plot-x-range 0 xmax5 x. a/ o2 W' I
/ b/ @! C1 ~9 p. I6 u4 W
set-plot-y-range 0.0 ymax- w1 w d/ D/ G# C. @# L
end
w' f ^. h( @1 q
* o# m- A( o/ B5 G: s9 O5 ^" ~9 oto setup-plot3( m5 ?0 d! V k0 S7 X1 @: F
9 i$ Q: C: L2 y. \) O4 \( h! {set-current-plot "Trends-of-credibility"
) U( V! }0 c+ u# Q: q$ g, L4 i$ x& K: h+ u: v" t( ]
set-plot-x-range 0 xmax, O7 m, q% f1 J. i5 @
! o. ~& n' _0 Y! t7 h1 hset-plot-y-range 0.0 ymax
* S5 R- \1 L. c* m4 lend
* O* i" P4 |0 H" ]" a+ i" q- R8 h/ I+ x. q3 l* t, k% |% h Q0 e
to do-plots
+ [# G% ?% D) e5 W; z! _' {set-current-plot "Trends-of-Local-reputation"
" l1 E" g% b1 J: J/ ~) {set-current-plot-pen "Honest service"
u J7 X3 N$ Y/ xend
3 G1 k c/ V8 x& F1 U3 @; G- h4 F) [: y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|