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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 G& V+ E: o* {
globals[! V! b" p8 a/ ^1 x6 b3 T" G0 \
xmax2 o' @9 T. e" T! {: Y. }9 P
ymax
0 b, Q' ?' a5 Z! I" sglobal-reputation-list
. F, d) t% Z4 U; {9 i' i1 a) l+ R# `
;;每一个turtle的全局声誉都存在此LIST中# m) [8 `4 f4 L1 F( y
credibility-list
: `6 A9 h9 l5 A. F+ y ]% A;;每一个turtle的评价可信度- R4 G I6 \$ Z& E/ n
honest-service& L9 r+ f+ V7 w2 o. Q
unhonest-service& m( p4 e, I5 J7 [5 _ {
oscillation
4 w8 I: K8 W4 [rand-dynamic) h" }2 T7 H1 k
]$ ^; ?% y$ n6 b2 ?8 N* ?, ?, a2 K7 Z
- B d' x# X' s/ K% c5 m T
turtles-own[3 U5 R' a. ^! e
trade-record-all
* t3 u! L% {+ K! p: q' \3 b;;a list of lists,由trade-record-one组成
5 M; u9 i. O8 H; Z4 W6 M$ [trade-record-one( w" N9 ^9 @! ~1 z' \7 @1 k
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
' Q) ?! h" V/ E' K. S
. \; e: Z1 p6 g- ]- C- G;;[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 G- ]: H0 [* y, p) I" b
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]
+ J: V# n8 X) b! w, u8 wcredibility-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
- Z$ k* t( A3 A9 F. Aneighbor-total
) S( h* y( C4 l: [;;记录该turtle的邻居节点的数目: J, l- Z- |5 b! I" V. E
trade-time( A2 }- y3 S& n6 m- C
;;当前发生交易的turtle的交易时间# g% `, ]* A, d0 h9 S$ _, Y
appraise-give* }% c3 j- ], W3 M9 a. \, x
;;当前发生交易时给出的评价5 Z9 G" \. W0 Q4 V$ A6 p- f; }
appraise-receive
0 h& a! m' k. l0 e# v$ }( i5 e;;当前发生交易时收到的评价" ~ ^2 N1 G6 L
appraise-time% N4 `6 f1 D+ K1 n9 i v
;;当前发生交易时的评价时间! p/ P/ x- g& o2 }
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 w- o( g5 N5 R3 R/ X8 G" N
trade-times-total
5 M8 y; r+ U% };;与当前turtle的交易总次数
% s F$ a, P' Ytrade-money-total
& X% b+ [* z: z) v: g' f7 u;;与当前turtle的交易总金额
1 z! U8 V. {% q& w4 Z8 Elocal-reputation
4 R4 \7 |& ~- Y4 h4 s9 v1 [' K) mglobal-reputation
u* ]& i7 { h# x( Lcredibility
. U7 N) H2 I4 r. I/ ?. N& k$ n% s& I; Z;;评价可信度,每次交易后都需要更新8 I. ]9 X( r( K; @5 H7 h" l/ M
credibility-all& a+ S2 j0 r4 O5 }! b3 g
;;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
3 U" @4 v8 g$ s0 _. K5 G$ O
- C+ J# b. |$ V& p% 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
' D- Y, O, U3 m0 B/ r3 `credibility-one
: b9 _' N% C3 Z& a) O;;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; \. ~4 [ N5 `) ^6 a$ G7 k
global-proportion% j p0 A4 ]" h" D
customer
+ j( i9 p% a3 m: [customer-no
1 c+ ?/ S8 i1 D/ H2 jtrust-ok9 O [4 m8 Y2 R* ^0 W
trade-record-one-len;;trade-record-one的长度. D, W% {0 g. K. d1 F y" s
]
# S4 N, U+ P! L: _# h5 Q7 }% \: V7 e" \) ?/ e5 y0 M
;;setup procedure& B( P1 s3 P/ H" [+ D! f
2 u/ }, T: D" sto setup
6 V- p! }4 W: n m" m& r1 c( [' N, e3 D1 c+ U, X# b; p
ca
3 P! N/ X1 [1 ]- t9 J" J% y4 i4 x3 |( p8 v2 [* _, B+ P# M! d/ ^! v
initialize-settings; i4 B- \- t$ `9 w! ^( G
9 s# x- f% t: E/ F% U& V# S
crt people [setup-turtles]3 g8 F' P; N' i7 A: e* ]9 k' h
# @( x9 |) J2 [) S' Y, K
reset-timer2 N8 W- }0 [2 m- F
4 d4 B' F7 Z* p+ [; Rpoll-class: d4 o3 M+ M$ |
4 y: Y& q$ M* [' S" y& esetup-plots2 S" |' i' E& [5 S% ?
" j# Z# t+ s; ndo-plots2 \; s6 n1 i$ ~* R: C9 |
end
$ |4 a) A& N* Q# ]2 L# ?* F3 m: n
0 K/ e1 v! R1 L/ v9 {% y, qto initialize-settings
4 L# a# n: N% F ?3 m, ]% i6 i* x |$ L5 u% n
set global-reputation-list []( ^, v2 q5 t/ S! Q$ E, |
" |. ]6 m5 {' Y4 q2 M1 ^3 l2 aset credibility-list n-values people [0.5]
' ?4 V, t# T3 ? G7 S7 K1 j8 S6 }: L7 R2 p
set honest-service 05 a$ v9 Z& K* ^' O" f+ P, f
$ r( L. E+ u, T4 Y! x6 f" A1 J
set unhonest-service 0
. D6 n/ D z$ N3 c% X0 U: F; ~) m+ ?0 A
set oscillation 0# x! n n( o0 p) K/ k |: U! i/ H
, V8 c6 S/ B$ s3 V6 q0 x+ ]! e# C
set rand-dynamic 0
6 P2 t6 R$ W3 y7 ^1 y2 t2 O4 ]end
0 ]4 y8 C3 q' t& a! @0 C2 P: `/ \- @% ~
to setup-turtles
+ f$ E/ Y* I9 h) A) }+ A6 G7 Q' m: T' nset shape "person"
8 s e3 e- {7 @2 m! J' ~1 K+ `setxy random-xcor random-ycor) Y2 y I, S" Z
set trade-record-one []3 ?' B) N; N) S4 g4 c [# a% A) q$ {
9 w; O$ l( n% W( V* u% Y, Rset trade-record-all n-values people [(list (? + 1) 0 0)]
/ e/ E0 b M @! t/ P' Y- u3 w# E5 O& p! g0 W
set trade-record-current []
$ `) \! T7 w: K1 e; J) Cset credibility-receive []
m% a: v7 O9 \set local-reputation 0.5+ b1 F! H' q w
set neighbor-total 0
" [) ]4 o8 W) i4 Aset trade-times-total 09 O0 ]& I0 @/ e2 Q- g! t3 W
set trade-money-total 0/ }6 a! N% @0 ^! f. r( t' f
set customer nobody3 f, q; `0 E. b1 L
set credibility-all n-values people [creat-credibility]
* D& h; a# X: h0 Iset credibility n-values people [-1]
7 K1 d4 p$ v1 x0 `' ]' \3 e5 b( V; uget-color- M* ?6 I+ l' L
+ {2 s, C& f9 | g1 A% F0 Gend/ }1 b6 b% J8 B1 M1 M: r# n
, i3 e* d! H( P1 n* s6 Q
to-report creat-credibility; ~2 v a2 e; A1 Z, q+ `
report n-values people [0.5]
. v6 r1 g/ n* Hend6 c9 [" N$ c, x3 e
. h* j* |8 |8 L& z$ h, i4 b5 D9 m
to setup-plots
0 t; t8 k7 ~$ A: m0 d; U6 y% K d) p. ]+ _
set xmax 30
" F1 v; o/ k/ l. M5 C' u6 o0 F6 ~3 A5 a
set ymax 1.0; ~% L; o9 K4 \
) a9 B. D* e9 f9 J; t' b) Cclear-all-plots
; m. h1 {& s% f1 d3 w' S; G" s6 b0 x* l/ u) H6 f% w' ~1 \' b
setup-plot1. d0 g* G- h8 t- \, y
3 r9 |9 C( M) L, t
setup-plot2
2 t( }6 s- t+ U9 ? {& M- g2 W! J; D1 S) I) ` ^2 `! M
setup-plot39 b# p4 z1 [5 E6 C0 k8 ]
end
w& _( u: i) Y) Y" L( u1 D3 _& i" ]2 g; ]
;;run time procedures
; Z3 {0 l) W. ~# O: e- s$ o/ ^; U8 H- [
to go9 P4 o( n+ R' X( V6 \! f5 E" H; p; i
0 G9 a& s X% o) O+ C* q- [ask turtles [do-business]
2 f$ K; x1 E. k# I' fend$ t/ {1 T; u6 t, C7 Z
$ }6 X$ t7 f/ A* I+ _ d
to do-business
0 s% b' o8 D" v. W
$ }" y% i: D! P/ A& h+ Y
0 @7 j$ t/ d% j* x& w+ nrt random 360
4 b4 R* k% T0 k. q2 F. ]- {' ]- S- ]- _4 P2 m ~) H& O- L% A! z
fd 1
4 t9 J0 _4 c w
: Q: M7 d0 Z' P% q( B9 A" N' Qifelse(other turtles-here != nobody)[2 ?& S2 h' R: _" S: [- ]0 f R
7 k X/ I' e- B% H8 B1 T% E! Cset customer one-of other turtles-here
6 b, v2 A5 L0 Z. w. V8 i- w8 |, Y: Y: K4 n7 N
;; set [customer] of customer myself% A7 ^+ O6 E5 i* ?" M F9 ~( _
- P3 N; j; C" E7 j! _+ F4 Fset [trade-record-one] of self item (([who] of customer) - 1)
; B+ @+ a4 P4 z$ u& N& p[trade-record-all]of self& s+ } G4 g4 _) ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 i8 }$ T, x7 e
9 ~1 i' Z5 J1 h1 `/ D/ I
set [trade-record-one] of customer item (([who] of self) - 1)
5 A6 O( E: K9 n, u' |[trade-record-all]of customer* S/ W' T5 f2 ~
* v6 e* n# X( h
set [trade-record-one-len] of self length [trade-record-one] of self
" ?* L4 @3 n B( f6 B
0 z7 Q3 y$ ?" a3 g3 }9 M7 |& Rset trade-record-current( list (timer) (random money-upper-limit)): o- q$ p$ }8 ]) o0 ]5 q6 E7 N
" Z4 j$ Y; _( i, l y! D1 L6 k+ q+ J
ask self [do-trust]
/ x/ d$ y# M$ [7 };;先求i对j的信任度' v% r. s! d9 W% Q5 s f
2 D9 a1 H6 m1 |( V% C& H7 q: |if ([trust-ok] of self); a9 P, A! n: v2 C
;;根据i对j的信任度来决定是否与j进行交易[
" {! I6 A( W! @! Q8 ^# O2 Pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 n' Y1 ^3 w- z" V; {% c
* J4 L' Q! W! c; s8 t( p6 J
[
' T& s7 n: p$ ~& k
2 ^( L$ o. E0 C! fdo-trade
l. D4 S5 a2 v- m+ S$ c2 W1 P7 V2 O' f8 Q$ B
update-credibility-ijl4 O: \' {; F2 P
+ I! T. k: T! h: c# F! ^, A' ?, Hupdate-credibility-list
* w, X1 v% x% \. o' w$ |! L% @# X" X& \; C$ }" M( p1 g
( d0 J# v! l) X8 u4 v5 F- I% g# Eupdate-global-reputation-list
6 \- v/ k- ~8 m: i/ `! [
9 M# _5 z$ p0 C9 h. T5 vpoll-class
; o% J; l+ f& h- g
+ P {/ }( U. |( g M5 U' ^get-color4 E$ V! D% H: f
4 W! n8 _/ w# h6 M! M8 n3 x
]]0 u4 R+ f7 x& t. n; U. W
" i4 E2 ~- T8 p( T3 z, V2 D Z;;如果所得的信任度满足条件,则进行交易$ Z& B1 d3 e) A" T0 S
$ _. c% M2 m' s7 n
[9 y- N3 P3 `9 _9 W
5 `0 w. `9 H1 q) K& \3 F( ]
rt random 360( l" g) N L$ e1 F
_1 `! u: Z" N( Kfd 1
: s% }! f1 f. b5 }3 L# T1 i+ L" _3 D6 j9 W2 F
]/ S n Z. |6 O# w3 f
# X3 }( L$ O) r4 r! q" h0 J4 @end
6 a+ m9 e4 Q9 a0 R* @) J& T# v8 w( J b0 T# O# k4 {
to do-trust
1 Y% j! h0 O8 ~1 oset trust-ok False) ?6 I- C" J( r4 j+ g& }
- R+ D" I. U6 f3 P u e. B
$ h* Z( v% Z: E! O
let max-trade-times 0
' g: B* [# ?5 aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* O+ h8 ` s1 |9 J* r$ f7 P7 T
let max-trade-money 09 I" f1 n5 g$ P. C# d3 B5 d& }
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# H0 M3 g* {# f7 p0 x) _/ a3 g
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 G+ a" }: O0 G: y- M# I
# Y# ~6 f) B) ?+ {6 h& k' C; g0 b+ O7 r+ T8 H
get-global-proportion
) k. Q, ]! `7 d( Y0 j. X, D' Xlet trust-value
X' f7 k/ [' ^- o( @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)5 u# h9 g( M3 a+ d
if(trust-value > trade-trust-value)) |7 |, H o- ]+ U; z9 j
[set trust-ok true]
* G* L- m/ I' u7 d4 I4 Wend0 N9 x" C& H5 e& k) f) l9 j
( n9 |8 j- e$ Y9 Tto get-global-proportion: B4 I! l6 o9 x6 w
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( M1 a+ y" Q: \2 Q: Z0 s[set global-proportion 0]
) S: R2 I& P! |3 T6 v[let i 07 C9 e% w S8 x) @% l
let sum-money 0
$ s( Y& m3 G% i& F- g3 C3 T5 kwhile[ i < people]
* ?5 ^& b' p- {0 O, ^[/ k1 ^7 M1 n' Y1 m+ S) E' x
if( length (item i
2 p3 \# _' @/ V* `[trade-record-all] of customer) > 3 )
$ u9 m7 A- y7 g! j6 f/ i[2 U3 Y _0 Z% J# {/ b
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ t @4 i3 R9 Q* u6 ~2 ~]; e$ R) S z' k$ j
]! L. @. X( W2 G5 Z" G0 A
let j 0
% R4 H* P* x( Q" N6 ?9 xlet note 00 I" Y! L2 c! o
while[ j < people]
6 n4 Y5 P. {1 o- P2 {; q& ]% ~9 ^[
4 N2 Z' ^9 w0 m5 l" T: bif( length (item i; Z9 ~' V3 s/ ?3 @+ E' Z$ _
[trade-record-all] of customer) > 3 )
0 `' [. o" o. |. W: h6 @[/ h. O: U% h3 z1 c: y) F9 p6 v% U
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- N+ N- k& X6 F8 g' o
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 l6 J# Z' c0 }1 k[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* e$ n( V; j) `# S/ F6 R
]
1 S1 V: H& Z* k]' T* m" d) }# A& L
set global-proportion note& q0 M3 T% r9 t. C& T$ s$ Y
], v, Q. W6 ^* m! U! Z* l$ V- ?
end3 Z6 M$ d; ]( T# g2 q1 l
. Q& K' |. K3 A* `
to do-trade
9 C' g, `* W7 ?+ }2 d) z;;这个过程实际上是给双方作出评价的过程3 `/ Q- {0 s+ k# d0 z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& i7 U8 r0 v. J5 ]& ^ fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 M6 U$ S! M/ ?; l
set trade-record-current lput(timer) trade-record-current
3 `$ A' `1 p& W1 k6 G- W% Y$ r) {;;评价时间! l' C/ I' k- [0 m
ask myself [6 h% ~" k' C1 J
update-local-reputation
# P# E" `9 S jset trade-record-current lput([local-reputation] of myself) trade-record-current( X! ^7 k: w$ e( |6 c- v' b3 w# J# G
]/ O: p- v1 u) H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( p& r: s- {$ m7 q;;将此次交易的记录加入到trade-record-one中
# k+ G/ A9 F7 g$ _* i6 ?% P @set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' ~) `3 l: ^+ p
let note (item 2 trade-record-current )
. p/ U" P* \* n+ cset trade-record-current
$ T d# q# f, _: i' ?(replace-item 2 trade-record-current (item 3 trade-record-current))' I# q$ \. t3 @+ E' I1 m! L
set trade-record-current
+ G- @. j% Q8 x' f(replace-item 3 trade-record-current note)$ P- f" m+ j% T8 X- H
- ~: y1 v/ u0 y a' D1 l3 M4 M) X3 J) E
ask customer [
6 \5 W' ?, I; Z) p3 vupdate-local-reputation
! `' ]- ]9 a3 m8 G fset trade-record-current
! D& C9 ?0 c4 T! U6 a8 v: ~ s, U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* n- B: Q2 u" H]& O- o- D6 R; S3 ]% i, {
( L( u; B9 V2 E. O5 ]) I W, O8 m! ^* [. u" y9 Y7 A4 \* u0 S4 d
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% g6 o- d& b9 l% o8 A) Y- p0 m
6 V6 Q+ A) {6 K3 B; D `3 |2 l2 ]set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ a: S+ m$ J8 R0 Z6 L
;;将此次交易的记录加入到customer的trade-record-all中3 W5 N, o! q, ~/ _- i
end/ s8 ? ~. S. I7 k9 x1 u
: W$ I) n/ Y8 v$ g
to update-local-reputation
4 _! e8 B, _ v' g9 k% g* Iset [trade-record-one-len] of myself length [trade-record-one] of myself
- Q# L; A, k- E* W; _# t
- u, |( }" Z5 m( S# h2 S: i h
) i$ Y) i+ `8 G* v( M4 v% l0 c;;if [trade-record-one-len] of myself > 3
5 D) [" S4 I+ X3 k/ ~update-neighbor-total
- D9 \; C9 m8 G& }; C' F! J3 E;;更新邻居节点的数目,在此进行: W5 e) c+ g1 M( B( w4 j
let i 3
8 o' ~( A, {" | x3 J8 w* wlet sum-time 0/ }; }4 U0 @% h; ^6 {" L: G
while[i < [trade-record-one-len] of myself]
- P Z7 d1 @! U* w' c[- H" R) Z4 _ w4 B: }% R& }$ ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 C; b1 X, ]8 i$ n+ Y
set i3 b- M) M1 B' O1 L. n0 t5 u; l, r
( i + 1)$ m9 Y& z! l' h2 H0 {
]+ s7 j3 r) n/ C. a7 [- u0 {
let j 3
& T3 w/ Q* A z, v8 N8 c. Elet sum-money 0
$ x8 ?6 ~* U$ q$ I6 d! z1 S% ]while[j < [trade-record-one-len] of myself]# C2 I( J( ]! F: |- [8 `4 n
[
5 P7 I* ^* g! k4 Nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) U5 H$ g. z @9 `set j: w0 \0 ]# C! A7 l. k9 l$ y' k
( j + 1)
h9 Y- a2 u7 a4 o]+ r- O5 z" @) \4 A' ~$ Y
let k 34 Z3 R( Y3 ?# y1 v1 W
let power 0/ q3 @# i# O+ F
let local 04 i- X- P6 b) e5 r* d% j
while [k <[trade-record-one-len] of myself]/ t# |5 i/ `2 X
[1 I3 L3 n2 a3 O( G
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) + r0 ~3 [! z4 n9 z- F, Q9 ?
set k (k + 1)( E& z& J7 \9 f" w$ U
]
" w% t& i( K+ A3 l `+ B/ w# zset [local-reputation] of myself (local)4 t u: p. _4 @
end% v$ c- H1 @5 l
; g7 ?& |% p+ h; b8 P9 `# r) ~to update-neighbor-total
; Z6 \/ G1 }5 K9 B. g) x; D" ^2 {
0 t. g5 d# I. i2 f2 H" q! uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, d# @ V! C1 C- s5 r4 j" |1 M" A, d/ G
* t. K( e# |1 A# W: lend4 x/ Y' _: P% r ?6 m) I3 p
; y) t9 f( f8 w, C, S; @
to update-credibility-ijl 5 Z$ k7 L f9 X6 ^! I5 s
1 p" T$ u/ N% V; i$ W3 ^
;;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。4 V. f6 h' @* k4 Y2 c) }4 [
let l 0
$ f& u; ?( {3 d5 G. ^4 l+ o {while[ l < people ]# j+ q( [ r% P! _* X
;;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
A; a# T0 g3 c9 J[
) F; a8 z7 C7 Mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 _7 O5 n% v6 K. r! Gif (trade-record-one-j-l-len > 3)
9 U+ b% q! N! f& w4 {[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
6 B/ t C- G/ flet i 3
) t; q( c. S. O4 \* B4 E, R* W4 w* mlet sum-time 0* E4 V7 v# |9 a Q' U- {
while[i < trade-record-one-len]
2 |: ` F4 ]/ ~. Y% B) [8 ~[
! t: ]; B# q7 oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ H( y- M6 d% G7 D7 |0 ~7 |; k- s
set i/ Y7 s2 t' p& X( f5 s! v$ d1 T* ?
( i + 1)
5 l# Q7 a- i2 ^4 T; I, C7 c]1 ]4 P. c* ]. n3 [ H! \
let credibility-i-j-l 0& w( b3 U% {- E6 ?
;;i评价(j对jl的评价)
" Y) J8 X4 c: h6 zlet j 3
' o* D( I0 p" ~' jlet k 4. b2 ~5 m8 [/ }0 K7 i5 M
while[j < trade-record-one-len]5 g- W% w' [0 L3 w0 n
[
* n, r$ h% C" I G5 r6 `& ~0 j/ Pwhile [((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
1 o1 ~3 A% Y7 \" b- ]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)
$ o G5 r- ^6 W X2 s' F% }4 oset j
, g4 w0 n4 v; s# }# F3 L- @% u4 r( j + 1)# ]5 T' l! O! H2 W) j1 G1 _
]
# k7 I7 X$ q. R8 ]! k) T8 }8 }2 y7 N4 qset [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 ))
" J. W1 G9 O( c" G5 P( l! t- `1 r+ t% F
1 h0 n! G) _5 i9 U, F9 ]
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 U4 W+ O( x8 R0 N;;及时更新i对l的评价质量的评价4 Z T) \& R% W- X! t; |- P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; G, ?8 U) E6 ]set l (l + 1)
( V8 a) |! S# K S" w]4 G# \" |4 o: z- Z3 r. S/ b
end
+ _8 C2 A9 M3 F1 u6 N3 S, d' g; r3 g% X+ D, r @) q' _) E2 Y
to update-credibility-list! L% \! e. k! y* \; f: A- h
let i 0
: \' d0 I0 a6 a owhile[i < people]* j4 |# K( H9 X1 Y( R+ D
[2 {8 b2 X; @4 `7 w7 X( ~: k" S
let j 06 _, C1 m5 o( h9 Q& n
let note 0
6 f! y l& ?: P! w" n2 D9 U$ k* ulet k 0/ S8 }) A0 L. ]5 @% q
;;计作出过评价的邻居节点的数目
9 \4 B' B7 v( |8 gwhile[j < people]" H+ V' U0 O) O- n( W' Z$ i
[
2 D1 T; B. i5 t# }0 T/ Vif (item j( [credibility] of turtle (i + 1)) != -1)
7 a* o8 J/ @2 n, ~) T$ D;;判断是否给本turtle的评价质量做出过评价的节点6 Y2 P. G* V8 o
[set note (note + item j ([credibility]of turtle (i + 1)))8 F( P& M% u# q1 L% c9 i
;;*(exp (-(people - 2)))/(people - 2))]8 L% K5 g5 S& N
set k (k + 1)
* a; X0 ^9 L3 c1 q7 P4 ]2 S5 G]! f2 B( `* ?. K5 M/ O. N; ?- X" f
set j (j + 1)8 k q2 O: B5 w# a G1 F0 I3 d
]
4 Y$ X8 o% b; B' Yset note (note *(exp (- (1 / k)))/ k)
2 r! Q$ w3 g& }/ mset credibility-list (replace-item i credibility-list note)
2 h! k# J3 m$ j4 `set i (i + 1)
" ^% m1 B: K; j& l7 ~+ D! U& W1 i]
0 O- A$ `" h) ?; Mend
- n( F) `9 w5 r6 b9 s% ~: M" M
- e2 }& ~; E1 ~# kto update-global-reputation-list
! l( Q7 W, Z, o1 n# k$ d Slet j 00 q+ ?3 K2 G. X( F% M" T o1 i7 G4 C
while[j < people], A% S$ O/ l5 n( C& W
[) \( r! f% C& K( ~" e3 m' K6 x
let new 0
7 {7 W9 D/ U: R2 r3 o;;暂存新的一个全局声誉
" Z# \0 o( A% }( ~, ]1 [8 vlet i 0% T. b, o6 W L: l3 U
let sum-money 0
3 P) B- ~# r% F; o+ y8 g% n6 ]% Llet credibility-money 0( F3 b8 m" _ b6 ^! @
while [i < people]
* r% b1 J9 X" O- [' R[
1 ]% g: a. M# m" Mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 _, J! o' w; A$ k/ y N0 c3 Pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 z v6 I/ T4 K5 b7 J! h
set i (i + 1)
% i+ p T0 D! M; s+ n+ |] T: |% t1 p0 o' v9 p! V3 b" N
let k 0) P+ _9 _" [2 G4 X
let new1 0
% l9 w0 ?" J4 ?+ E5 ywhile [k < people]
0 [5 h$ O1 Q7 J" M5 i4 j3 i \[
" m! D$ i1 V! O" L5 d4 {' ?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)
- ?) E9 r4 | @! }1 lset k (k + 1)
6 e. `5 M* D) o, i]
+ |; V4 s' C1 gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 [1 O8 c1 @- d; cset global-reputation-list (replace-item j global-reputation-list new)
# w& a8 r* A9 f1 [" nset j (j + 1)
' W/ |- k% J. o1 b- p% B]1 K; @9 O1 ?+ k$ k
end8 m- b& U. I% D. x9 U7 J$ E
s. n9 i) P! T/ a
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' x# W/ h* d0 L. K
to get-color
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set color blue& p+ D8 L) e+ r& [. F9 q2 \4 y9 ?
end
$ G }+ B3 u# w. x9 w/ d
* s# d% j* q; cto poll-class
F9 T2 W8 X+ U, x# Kend' a6 V8 _0 ` L; ` m- v# f
9 r/ @4 K( ` ?' t. \; Kto setup-plot1
t# F! J4 J; s4 p+ [9 I% E8 [3 W( m7 p) C
set-current-plot "Trends-of-Local-reputation"4 c" M, i; Y ^
9 s5 P$ o; {8 q0 Y* Z; oset-plot-x-range 0 xmax
- l3 W# P4 t5 H; ] n& n9 |* }
$ G; |+ Z* y7 m c2 U) nset-plot-y-range 0.0 ymax
( S2 u1 w/ N. q. p8 e6 J4 Dend
2 G* ]2 R( N8 z# n5 D2 e- X% ]3 ~% b4 |7 s( S6 Z& O7 X7 j
to setup-plot2: X6 K, z8 {+ ~* l
/ f/ i& V; Z8 E% ~: S5 O) A' Tset-current-plot "Trends-of-global-reputation"8 @. |) c: P K4 S/ g
6 U0 Q: y% ^+ T& W4 J" z8 S
set-plot-x-range 0 xmax0 _: \3 }, e) \6 _
% q. ~+ R3 c$ T, @7 u, _0 z* yset-plot-y-range 0.0 ymax( d0 Y* m k9 x: t3 S
end
@& W0 W2 x/ `3 a7 i& Q5 H: o8 m2 C9 `! E$ c) r! w3 L' K9 `; ~! x
to setup-plot3! w3 P) T" V/ s6 M# ]/ J
3 U0 G$ F' q) [9 H4 t) ]# ~0 Uset-current-plot "Trends-of-credibility"
; N& o1 x1 I* ?# E# {: Y) C: J3 d1 a" S3 t; l
set-plot-x-range 0 xmax4 |" f3 F" M; e G& O
* L F6 ~( i! l o$ G2 ~. ?
set-plot-y-range 0.0 ymax
+ T, C/ Q# ]" o) R7 d( r8 gend
0 D7 Q8 S9 v- j+ ` m a8 \! ?. _7 J' n
to do-plots
3 a* O0 b; w U( ~0 [& {1 h1 aset-current-plot "Trends-of-Local-reputation"
5 {3 m6 y% {' Z) ]set-current-plot-pen "Honest service"6 [5 T! W- c: C9 \! l7 W/ F
end
8 x5 a9 e! P# g* G9 K3 i+ _; E: m! x+ s8 e A. c3 ] p! E
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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