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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 d* `0 n% ?& ^
globals[8 X8 _" L, u( l2 v" @( T) C5 A
xmax9 X4 l0 s+ m' F$ Z
ymax
+ k6 D) w7 l, R& G' yglobal-reputation-list
' x C- S* Q9 Q% T' |; C) n( j; N$ H7 A+ _& r
;;每一个turtle的全局声誉都存在此LIST中2 d" W. b! f$ `
credibility-list1 a/ |, J u; S6 y a
;;每一个turtle的评价可信度
. u' m8 S4 ^8 g/ o! Dhonest-service
4 e) l5 P: Y" d! _+ e2 P8 e- ^unhonest-service# w. K! \* I. e' Y2 Y% u- \, y! q
oscillation
* ] e. X$ C6 Y# D& r# trand-dynamic
8 a# [; y' E0 s) O' O9 f]
. c4 U2 H2 R. O- x" s
7 u5 Y) u3 s0 xturtles-own[
4 ^+ V7 F$ w0 Z) _1 Btrade-record-all( P+ k# M6 ^% h& R1 _
;;a list of lists,由trade-record-one组成" \- T: ^$ `! Q( p
trade-record-one: o4 _0 \5 o" ]3 P) a8 I' y9 Q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( D$ m6 a) [! ?) ]$ x% B& l6 U! b! ^
;;[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]]) E1 m; S2 b0 ^4 Q
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]7 X" m( k% ~0 z7 L
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
) L0 @# m- R9 D0 l; Y; uneighbor-total( w% {9 u( G& ]! F
;;记录该turtle的邻居节点的数目
3 \ v+ T s7 k9 a/ y# m4 ktrade-time
: p- u4 s3 o( |. u% ^;;当前发生交易的turtle的交易时间; a9 K( z( A' r7 z7 R0 z9 N
appraise-give
1 Z6 w$ k8 `7 f+ n, E# N, E1 A;;当前发生交易时给出的评价4 g2 e& W1 j c9 J0 O$ I
appraise-receive
3 R5 t; h+ z( c& r;;当前发生交易时收到的评价" |! V" h7 w$ y" t# q+ p- M
appraise-time
& A) s6 i$ f2 D;;当前发生交易时的评价时间
& q* ?- M- X& p" F- P, slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉" {5 S3 u R3 d" |+ Z
trade-times-total. G9 N" \" f% O" Y- Z6 L" e8 _& d
;;与当前turtle的交易总次数
# f6 q1 g7 O# Etrade-money-total
( c, R1 T; V9 M2 b0 L6 [/ a, Y8 k;;与当前turtle的交易总金额
3 j* d2 C6 J Z n/ s7 Nlocal-reputation
& V |% `4 Z; e# T+ O4 l8 Oglobal-reputation1 A& l$ x: E& q5 M& C2 a) `! K
credibility. z( Q, k t5 A/ F" o
;;评价可信度,每次交易后都需要更新2 o2 S- d! T' Y6 y: ^2 [
credibility-all
% s% J& ]2 C% Y5 L! W% 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- P- v) ~" ~! z3 J- f1 I5 {
% w# S9 B9 }: v4 O3 s, [
;;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, X x3 }! m/ ^& }5 X5 \) t& q
credibility-one3 C+ e `+ V5 L& N: Q& ^( I9 G. w
;;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7 @8 V v: z+ L% J# b$ L+ t
global-proportion
- |% t! l! t" l4 P, z3 wcustomer
0 P- m6 V; ]9 N; y7 N1 T0 Pcustomer-no: k8 y _: P$ J; K7 @
trust-ok! Y. k* [" K1 t" \: n( B
trade-record-one-len;;trade-record-one的长度
# r3 K! o ]0 p4 D]
: _( C9 f" o4 U" a9 t' ?6 y2 v- ]7 V
2 A1 v0 a% E; `/ @* w" R, X- Q# g: k;;setup procedure1 m) ]2 r- w- u% o0 H+ B; Q
2 s" i& {) L I: e8 q
to setup5 {- _* x3 @3 {, G
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ca
0 n7 m4 u, ?( a n; {! o, C6 W
* a1 u" y9 Y/ Q; v3 c. {initialize-settings
7 ?: P) l3 f0 q. l% B; E7 l/ @: l1 r9 K
crt people [setup-turtles]
* i9 M0 g$ V% S
' p5 q* s( e; h! Q$ ~reset-timer+ b3 k2 C5 O& q- [
: g5 z V% X: X
poll-class
1 [& \4 n. G/ l
" j# A8 ~7 q, ?9 \setup-plots2 s5 X: }$ D+ Z6 i! I3 J# Y
, {4 B8 y) D! T$ d- Z+ w, odo-plots
3 X0 s3 N7 z8 l) ]- ]end
7 H' j7 d% r: r y- p% ?: g- ]- r9 Q+ W
4 m% _% L) B0 y# hto initialize-settings; l6 B4 g- V( x
6 p- [0 f) r O8 G S5 G0 B# H9 Sset global-reputation-list []
, Z1 N! D. J. E& X# e% f# T+ j$ O, w& e' w
set credibility-list n-values people [0.5]* Q" n5 H( v$ C: y& t! D9 c I3 F
. N0 V0 l: c) f8 P1 lset honest-service 0
: B; w0 k K0 M) _
3 {: T( ~+ E. ?+ t$ W$ g5 rset unhonest-service 05 }1 ~# j3 S2 O$ r' w
. K$ y: c- t4 m) c/ X* }
set oscillation 03 E- G8 J4 |* |( Q
# p) K: s7 i6 O$ s' `6 c
set rand-dynamic 0( m* N7 j; K% f4 \& V: S- a$ v W
end
2 @3 a7 d+ A' A" X9 z3 i A' x
- u4 l& Y- l- B3 }7 }3 U6 W9 R) A, Eto setup-turtles
7 N& D* o: |. M% qset shape "person"
* K5 B. C6 Q: R. ~5 A2 H* w5 Osetxy random-xcor random-ycor* n' f+ G, |$ O9 T5 R# d) }
set trade-record-one []# |4 a, X3 k# e' Q
% B4 p5 q0 [: J0 O0 @
set trade-record-all n-values people [(list (? + 1) 0 0)]
1 ]1 s% L' m$ r* @1 ^; _* }0 `; h+ Z P8 K: m8 _& e/ _
set trade-record-current []" T( u3 u: W9 N' M) t4 Q+ m: a
set credibility-receive []
}0 h5 e$ I* I$ Sset local-reputation 0.5
# l3 q8 x8 E# a( s9 c, e$ dset neighbor-total 0
3 s/ R: l+ [5 C! b+ ]) `set trade-times-total 0
: a5 S- b v* a6 m. aset trade-money-total 0& L q; b ]8 K- T8 D8 z
set customer nobody
% a- B: y. Q T) j3 }set credibility-all n-values people [creat-credibility]+ m8 t1 [6 ?- ?
set credibility n-values people [-1]% ^; S l8 Y3 ` Q f- ?) R
get-color
6 t! W( w! g, ~* e1 L5 U: {
' n4 b# ?& w; j% F3 cend
! C- f- X, g+ Z$ j& E
, N. n2 T( u* ]5 }3 u: L9 lto-report creat-credibility
" ]% T# z; D' S! p9 l# l9 wreport n-values people [0.5]
* Q& C! K6 K9 [& P0 R9 }! Cend
1 i- s3 ~0 n% |: |2 E: r9 |# i/ g0 t; U1 v4 T1 z2 o/ `
to setup-plots
7 y+ }: s. F5 m5 p& F6 g6 Z0 S3 y& o$ v" v0 d5 c: @2 ^* {
set xmax 30
2 r o3 X1 q; g0 R. S& f5 H) g
5 r: _) x0 J- i% ^, H [set ymax 1.0/ p6 S) a( }- q- A, x3 L
- U4 ~# @5 B/ G( u% ~+ K4 w
clear-all-plots% F+ b6 Y# Q0 _: y
% F. g5 [7 o1 ]
setup-plot1
* L& g. X7 Q4 L+ j0 q2 b
2 c1 F! T. B$ M9 y4 ^0 o7 X7 bsetup-plot2; ~* _" J2 X% e y3 o' T$ ~' Y
2 T3 l" V' s* w# {; w6 d
setup-plot34 h, O4 _- A: R, M% {
end
/ P- v* n$ ~ b
$ P/ {8 b+ ], v3 q5 L5 o;;run time procedures# s4 o, P0 b$ \4 H# F
- ~, J3 m* p1 l2 N! I' Zto go# U3 b; [7 f8 l+ j2 @0 S% k+ t' k
' `$ r6 N5 V4 L& ]
ask turtles [do-business]
4 a- I2 j, [: m- f5 d. J( }1 h: Qend$ I# _3 E4 _. ], G9 k/ J7 {+ R+ r- A
' m0 R0 D& w3 B8 B" H- \ r
to do-business
% q5 D% D* `% F& l1 N0 \7 C1 ]6 U. G& t% J9 n
# W. e- W- o) J
rt random 360- f# E+ d' {* X7 T4 {4 B6 I
' ~& V8 Q: r( m e0 R- F Pfd 1( X0 m- b8 `/ n
' Z2 X3 D* V) f9 A% ?; v' F5 m
ifelse(other turtles-here != nobody)[
; p4 N* U7 d) Q; k
7 d% r: x9 [: a7 ^) Aset customer one-of other turtles-here- x8 G! ~: Q; r" J
7 Y' z$ {$ Q" m$ o l;; set [customer] of customer myself
( f. r) I% i, E/ N7 D6 y% V
$ k! c2 N, r/ Xset [trade-record-one] of self item (([who] of customer) - 1)
" [& ~" t+ \8 Q[trade-record-all]of self
, U4 a* B$ i9 N o* _+ s0 R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 M! ^1 C: ^, b* W/ H) M
7 H" R Z% e9 u' ~* _/ _& n3 ?
set [trade-record-one] of customer item (([who] of self) - 1)
6 c6 e8 l Z; P7 C[trade-record-all]of customer
4 U9 F j/ B, O% E. h7 [& r+ X, l6 l
& r3 s+ }, w. y# Aset [trade-record-one-len] of self length [trade-record-one] of self
* r, C" _! Y) I+ \
2 U# V+ l1 n3 ^2 |& iset trade-record-current( list (timer) (random money-upper-limit))' h1 ~* y3 }1 t1 j4 z+ F
, O k& f$ K' L2 z$ C
ask self [do-trust]
2 J( u! K0 M9 S. V+ ?- N* H: ];;先求i对j的信任度
' o, i2 P+ b! C( C/ ]
( E& `/ k* j- W, Sif ([trust-ok] of self)
6 V U7 f, g; E$ R0 T* f;;根据i对j的信任度来决定是否与j进行交易[5 d& E! ~) w. g/ w/ j7 G6 `6 ~& s
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( |) z @! F. G! d. m# H+ ]' J+ {0 ?4 f. Q* h
[
! d- J, L" i" w0 F& g9 X4 H
/ v' u) ^; P% u% J& d8 Kdo-trade
! i; v0 d; @8 N) @; c9 x, g5 `; q* Z* M) w
update-credibility-ijl3 [9 g& t$ }% U5 U! s
& B3 L0 F8 I. D/ s iupdate-credibility-list; ^! ~$ U7 _* W
5 p7 b3 J7 {5 u7 n( M3 {/ I: k
& G, d) V. g1 j4 }1 A1 Wupdate-global-reputation-list" y V7 D- s, p8 O0 a( l) k, m
$ p1 C3 n. o: u0 H. b" F' e
poll-class$ z9 M3 T: q% B9 E2 K) e/ R
4 F0 c+ z' d) B3 B7 O0 I
get-color
! j- ?1 s9 a) m9 Z- G! @; S! h8 _# ~8 h6 h# }/ ~
]]
4 v/ T, N% a c5 E4 ^( T0 {# w6 `+ }- M7 i+ c B. m7 s: G ]# k- d/ g
;;如果所得的信任度满足条件,则进行交易# W$ s5 j, c* a
8 g8 p7 v! i# A
[
3 q+ k9 {# C+ l- _
x: h! f/ O6 j+ s4 k' U2 R" Crt random 360
V9 t5 Q; C& w1 y# K9 f! Q0 A$ ~8 d5 i2 T6 M! y$ q
fd 1
$ n& l# ~% e# Q. B+ n* }9 v, C+ H: u% a
]
; V( c7 S& p( Z, V# J, _
' t* @% `$ h' o# i& zend
3 x# J1 n! I- Y1 y$ v0 B) \& K
; k+ ~7 n/ C( I/ T" c, Gto do-trust
9 a# P' |( x, W5 y! b& _set trust-ok False
! ^( P! I6 y$ Y9 I
# o( H" }: e+ S# l' N) b' c
n) R4 B% ^6 ^" A2 ?let max-trade-times 0
2 V$ r8 h1 u( ]9 Q. @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& L+ k' L5 `$ j0 v+ ylet max-trade-money 0/ Q! m# ]% x, \" E3 R$ p
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; v- f2 @# ?2 l
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 m$ I) p" r9 Z$ v) R1 N7 c5 P# [2 f* G% B0 \7 r* C1 O
6 {, v3 P5 k# {- x
get-global-proportion9 G7 ?/ {- ~, s" q) ^+ _# ~
let trust-value
/ D- y: {& _! ^( `$ @% 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)
- R- I. r* x$ V" ]( A J4 Nif(trust-value > trade-trust-value)
6 q" z( z# N' h6 b o[set trust-ok true]1 {5 ~1 W2 k' R) c% `- z8 o% o2 T! k7 }
end/ O9 B5 e- K( m2 H6 P3 l2 Q S
4 y# j1 F+ q D" _to get-global-proportion
7 k5 N! S9 U1 p5 w4 D7 J% jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* Q' t% ]$ o/ e" y, b6 X[set global-proportion 0]
- e& p1 |! o" p7 Z) p* Y[let i 0
$ n; B: G3 _9 {: _( Y; x$ {9 B# Hlet sum-money 0/ I& @$ V @" `! E( s/ T! v
while[ i < people]. {; v! f- J- n0 ?
[0 r4 D Z+ s+ ]
if( length (item i; k" e" E* a3 u" W/ e/ p- c1 E6 }
[trade-record-all] of customer) > 3 )
' f0 O. w- o; [% l1 _4 S[
2 V) g6 @- D2 r! |% N2 V2 ~/ `* kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, c$ y& v6 ]* f3 R( s]# Q' C) g, t' F5 A. N# a. b# x" y
]
) V9 M3 _$ B2 c: p& c" Jlet j 08 k" V8 I: o% N
let note 0
* u, ^# }, b2 Jwhile[ j < people]' t, d0 B& v2 |+ K: {
[3 f0 ]2 V) W% ^9 e$ [9 f8 j
if( length (item i
% ]& d0 U6 e5 S8 J, K[trade-record-all] of customer) > 3 )! _4 r$ x# ~9 ]0 c) F3 D
[
, Z% M+ C) f( A3 S- o2 Rifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 ^0 U' E! z1 i& N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
. n. j) o0 ^# V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] |5 z) i- A/ W. O& e
]
' c J# {6 p9 Q9 g- U]+ N( ]$ \" E( Q+ J* }9 B
set global-proportion note6 Y# f, A: @% L$ B
]
0 e* Q2 L* v$ M2 lend* K; @$ |& ~4 K5 {! l5 }
3 O7 @& Z* ^1 E4 e' Vto do-trade* ] m/ w) J- G
;;这个过程实际上是给双方作出评价的过程
3 I# _# j5 V; B& P' @+ cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 p( S3 j) A5 p! V0 E: a5 }; z& tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* y. n; v5 P$ P! C9 {" S
set trade-record-current lput(timer) trade-record-current
1 R! C0 P7 C# M( k' k% U2 D- q/ j( ^;;评价时间/ P' v( U! X9 v. p
ask myself [7 c7 H1 \: d9 X- B2 l1 p2 G. F, f+ c
update-local-reputation7 j* `8 \- `; O
set trade-record-current lput([local-reputation] of myself) trade-record-current" B- |1 l& K& s1 v8 A$ T# c
]
4 W4 r1 }. k7 `' d: W7 ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. I2 f( q) g# A. B
;;将此次交易的记录加入到trade-record-one中! C, w' X* D) ?, a9 P3 I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ x/ s2 D4 ?2 X0 \2 D
let note (item 2 trade-record-current )/ B, G; {$ j# ?9 T6 x; J/ L
set trade-record-current4 B% D! H" T9 U* ? S4 o
(replace-item 2 trade-record-current (item 3 trade-record-current)) s, g' V$ L' u! S3 {3 t
set trade-record-current
- A( S9 j& I+ l( ^9 j3 ]- f(replace-item 3 trade-record-current note)
0 L0 n. |# j8 B$ y. Z. Y4 P
. j, ]# r" I# I5 c/ V- C- y% Y
/ x# Y8 H& j, sask customer [3 `/ V* I3 x4 M+ i! u+ c
update-local-reputation* Y; X7 q/ d/ C8 D: ^
set trade-record-current8 E* G- l& e- e1 j) G
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . M9 f- y7 {$ t7 x# a7 _! \
]: y( l/ C1 Z' ^7 F# U
% E- h; z$ Y O- w# A$ z+ m( ~& p/ _1 S, S" S- C- P1 r6 i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 Z2 e* P7 y+ o; d
: I2 k2 l5 m5 ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 M* t) C( |# q% i7 v1 n;;将此次交易的记录加入到customer的trade-record-all中3 x4 g% X: }7 F3 b# X
end
6 ~, X, j; q% ]$ S- @3 [, e" T- ^- A
to update-local-reputation- t# m& r1 |+ z* Y/ O
set [trade-record-one-len] of myself length [trade-record-one] of myself+ y$ [3 X/ J* y' i; s6 x
; v: Q) T9 b$ @* w7 G1 k5 E6 l
' Y# }3 G3 y3 k! F! E0 N;;if [trade-record-one-len] of myself > 3 1 r6 v8 H' f2 Q0 z( Z
update-neighbor-total
$ |- f& `3 [8 y ^! R; k;;更新邻居节点的数目,在此进行0 z* K0 v+ V1 u; L) t4 N
let i 3# C! u; S) O& l! B3 ~3 F
let sum-time 0
, f$ i" f* U) c8 Nwhile[i < [trade-record-one-len] of myself]7 k) r6 L& O: l/ l8 r; X. a9 K
[2 N& c7 }3 K o1 Z, M
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); E p0 C3 Q; L* I
set i
5 e2 ?, R! Z4 \, l( i + 1)
4 ^! ~- k. f P" M1 m# h]1 X7 @3 I+ `. S& ]3 t; `% K
let j 3
: j0 d4 O' l: R+ v3 L) zlet sum-money 02 m7 b" i) n( g9 G- X1 x
while[j < [trade-record-one-len] of myself]2 h' ]" h2 P5 |
[" `3 p, H- i i# L0 S
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 [# g& k4 g! A+ n9 K D3 h
set j; z' ~1 _# Y2 ?+ q+ F. L/ i" P8 k
( j + 1)
* }% ~3 W' l- E]
. K( L1 ~+ D% Y6 X1 X- C0 b* `; Slet k 3
/ b, x8 w7 u) @( p& C B& ilet power 0
8 q! W) p% Q; plet local 0
! C* _2 O" m" B ~# X% qwhile [k <[trade-record-one-len] of myself]' l; E6 T6 r+ s) A4 Z. W
[" z: c6 b+ x, [' f8 W
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) : i" R" w5 C: J
set k (k + 1)7 B- D+ O4 L& ^* ? x2 R. C |' G
]4 h( P- R) E6 F5 j! Q. Z. w
set [local-reputation] of myself (local)
3 ]% n! E9 r) M" \$ |6 t3 g# h! cend
0 x1 v y( \: o4 ]1 C7 `! W; Y, b8 J' Q9 h5 b
to update-neighbor-total b$ Y+ M. d8 i6 u3 q
3 _0 p. w! t/ N8 E/ Jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ [- ]+ j! F* }& d, r+ e% J/ n! w+ \2 v$ R/ I. j- R
( X7 E; E7 G' a
end
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to update-credibility-ijl ' s8 q m% S/ \: ]
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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。- |: h7 `! P; g( u6 m
let l 00 D3 C: V; \% p/ A. K7 d7 B
while[ l < people ]
$ H1 i/ _7 x: E8 P+ V;;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. L9 U$ _. ^8 `, W
[: h/ Q& R0 j& ] a( h1 m
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 c# z( {) x0 B( P
if (trade-record-one-j-l-len > 3)
: @- W9 D2 C3 u: t0 Z3 j[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-one1 U4 o4 j2 {1 E3 o7 s& _3 W
let i 32 g! }. G% T3 t! I. w# z5 R
let sum-time 0) g I( k& r* U" ~# _
while[i < trade-record-one-len]
9 o$ m& ]; S) P& g( ~[
, b6 e B$ a6 c* t3 dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 _# y h% D4 M. S# B3 O0 Uset i8 X/ m0 s) O9 `+ ^; d
( i + 1)
: }7 c# @( |' [; h2 H]
d9 B+ V7 L) `1 F2 x$ f. glet credibility-i-j-l 0
' D; X9 J* ^& N( }5 \( {;;i评价(j对jl的评价)' \; d9 b% ^3 M) {8 w7 S
let j 3% e6 \" \: z5 S- R, [6 m
let k 4) p- u7 k& T- {$ c- L
while[j < trade-record-one-len]
) d, I" ^3 I+ s$ z# u[ x: [1 g8 P9 `$ i4 I5 g
while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
V' h* f+ J, P$ eset credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)
/ W, J: H3 Q3 Uset j
/ n7 E0 E% T1 @ ~( j + 1)5 e% d- k1 c8 \6 K- I! n
]
( V* \) j# F4 j/ _+ |# lset [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 ))
- u+ L* c5 q0 P8 n4 A1 b# _( @
' W3 D o8 j6 f# G- j. y6 ?6 d
. z5 x$ C7 Z- e0 Dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 x9 E! C0 V& N2 X1 t& P;;及时更新i对l的评价质量的评价
. b: ?: N! M4 |' o$ j" {& b3 c+ jset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" V- r2 f/ Y) L# w
set l (l + 1)8 o/ l+ i9 f9 q, C( h
]& P2 {2 ?" [: H( ?5 Z+ x
end
/ T/ \0 @+ U, a: _, p/ }# U$ t4 F2 f
to update-credibility-list
8 j7 m9 [) a. d/ f, Dlet i 0
1 h R5 Q& ~" [. C; ^3 awhile[i < people]
; V. j; V( a" |[
r" [' Q: z9 {% Hlet j 0
! B2 ~4 E3 R( _- [7 O. n g* Ilet note 0
* k" B5 Z H) e( X& V7 i3 blet k 0
+ _' O- ]0 t V4 g8 Y( C( _;;计作出过评价的邻居节点的数目' R7 G* P$ s+ X& d2 J2 ]: F8 H
while[j < people]
. P2 W7 [: o2 v! o1 E[
1 A+ Z g$ e: u' K+ [if (item j( [credibility] of turtle (i + 1)) != -1)
. h7 O) V3 O; p. U7 D" p1 l;;判断是否给本turtle的评价质量做出过评价的节点( `# x4 g# W0 J9 Q7 N
[set note (note + item j ([credibility]of turtle (i + 1)))
, @. S0 t; z2 Q) k; D;;*(exp (-(people - 2)))/(people - 2))]
4 K( p; `' _/ Zset k (k + 1)
. R3 z& Q. p$ t# P2 q]
5 q, y2 [4 t0 b8 |set j (j + 1)/ o# W* H2 o$ ?+ L* a: d
], F9 A" S* [1 Y9 A9 r# l3 m- C
set note (note *(exp (- (1 / k)))/ k)
5 _2 C/ s7 m6 W5 E) C2 _4 M- u8 ~set credibility-list (replace-item i credibility-list note)
3 m; ^0 r9 w# G% d v2 [# Oset i (i + 1)6 N' Z. C" M' S7 s, P0 m
]0 t8 d0 q( P2 Y4 \
end
$ |, Q% V( f) }& `! Z @% f- |8 Z, I3 i9 S5 K4 h
to update-global-reputation-list! W6 }+ [& g9 O( E
let j 0
. P' h& i! R# X! l/ |while[j < people]
& z: x' c' i$ {, V2 l. Z[
5 n2 }9 p7 R: z6 J: g. i# {! W7 v" a' hlet new 0
" D3 n: i0 O) c4 E# z;;暂存新的一个全局声誉
+ b0 m( `/ |7 T+ Klet i 0! o+ i8 T7 I1 d% o6 r
let sum-money 0
1 G7 s% I, P* _5 klet credibility-money 04 W0 P0 h" A) H) L0 O2 h9 ^# Y
while [i < people]
; V+ p' z! u8 e f2 h2 f7 Y' A7 X3 c9 _& U[
6 l9 D$ U; V6 j) O* g7 lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 Z% Q. o2 {; V- ]$ g. `; L6 o
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) I( M9 S; P: R9 [* Eset i (i + 1)
; b; M. f2 x; [' ]+ G) P# H]
9 N9 T4 }7 y) ]3 m0 P- Plet k 05 J7 y0 A& m ^
let new1 0' c p1 s& G1 i+ T7 E0 C/ w/ ~
while [k < people]1 l2 {$ B2 L9 J( I X5 ^
[
) B/ r% Q% ]8 c8 x& @/ T& Cset 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). o g& }# g2 g& A& G K, ]
set k (k + 1)% M2 b* S1 @; @" ]0 v0 p
]
$ \; Y1 |- R* V; i) s5 ~set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
. {" {- `+ K" G& W+ ^set global-reputation-list (replace-item j global-reputation-list new)
6 O/ `7 O( J2 e, wset j (j + 1)
! C, y r9 Z% H% s]
1 J$ B9 o* ~& w6 Z [* e# i$ oend
v7 W5 T( ^! r {+ K$ V" u* _+ Y& C' }8 B. T. X' u
- x2 ?3 w" m& z% Y Z$ O" W- s z8 J! U3 j! _
to get-color# m: u k5 z: ~; j q
1 ?/ ]2 C( U; h2 h: Sset color blue
6 Y/ S: R8 T3 Mend5 _; c# ~$ L$ L$ ?! G" X
0 z7 k* x7 D' F- f1 J9 @to poll-class
+ z3 \; q! p, F4 z+ s; Pend
+ D+ N3 Y/ D B: Q$ d3 z
" O3 K; L+ q. o1 F7 K; oto setup-plot1
7 U6 w% z$ r- w0 |+ X
3 u; q4 K8 D2 \) }& y6 ^4 Xset-current-plot "Trends-of-Local-reputation"
: A2 B: l$ P) k! q. C% c% K
! z O6 G/ ]# `1 }2 }1 eset-plot-x-range 0 xmax$ H3 e" r1 R: c& K# U
9 P4 r3 \* i- ?, F& `) W- r7 T. ^
set-plot-y-range 0.0 ymax
! I/ j9 _8 q7 z" o" v. Y2 dend# ]& x6 E) Q& B8 j3 R, |8 e
5 |. H1 F* K6 r* h' T) D* r
to setup-plot2
, a m" n( M2 W. d" ^+ m$ q* i8 T) P. Q( A G7 z
set-current-plot "Trends-of-global-reputation"1 W. p, }6 O5 r+ j) S
. M4 b" R- S3 }: q. Qset-plot-x-range 0 xmax3 U( d8 J/ w/ q2 G
) a/ P- G3 q9 @" d# T0 [set-plot-y-range 0.0 ymax
+ z% e& B& h& g: D6 G- Q: xend
0 @, a* }/ W3 y) i1 u( a: F5 G3 v6 k! M' C& G
to setup-plot3
* ^1 V7 ^3 ]" V, z {
5 I3 f0 S& Y2 G2 }set-current-plot "Trends-of-credibility"
, x& k, G' R2 V3 ?% b, r
+ m: p G; b2 H) Y! i7 }7 F0 M. Nset-plot-x-range 0 xmax
K# k' {0 F0 w$ }& G1 u7 Y9 K7 }7 P2 u$ n+ d: @3 v
set-plot-y-range 0.0 ymax
$ ~2 ?& B, d6 V0 y! Z* Iend
, n5 u/ Q V9 l/ s9 s; a; q
2 W: S4 G4 _; y) G( ?* i0 Y3 oto do-plots5 A: i5 D3 t2 M- i) E
set-current-plot "Trends-of-Local-reputation". m1 B1 |( O$ ? ?5 f. t
set-current-plot-pen "Honest service"7 q7 r2 C& m% z$ C' E2 I
end+ O+ f6 F( i6 n5 T" K p8 D
) t% T. i0 n' ~" a' ]+ {
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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