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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5 \. L5 O1 E! x
globals[3 A3 W2 _" A* Q, D
xmax
4 e& [; @+ K% t2 C" C: `8 gymax$ W- T) J) }( u. ?6 ]9 J; ^5 k: }
global-reputation-list
6 \, z( u# P# L' \' n* e! S4 u* b
;;每一个turtle的全局声誉都存在此LIST中
" a+ b( ^4 ]$ k3 h6 ycredibility-list
& c5 P: V/ Q$ I' E' e0 F) z: ^5 ~;;每一个turtle的评价可信度
* W& b- Z* Z( Zhonest-service5 a' y& W- |: r- A' D4 ?" b
unhonest-service5 ?& Y3 b: g4 l$ y
oscillation
+ I/ `5 r% y9 Trand-dynamic
0 n; K# S1 B4 J$ u) {5 q: w]4 ~- E: r: a$ }* Q
' `* f( e H! Hturtles-own[ L- k! r/ j7 P* R6 I$ o
trade-record-all
2 P; s( s' G4 S: q# \& s) U* d( M;;a list of lists,由trade-record-one组成
' C( {+ _+ z- F1 h+ y n6 J, gtrade-record-one
/ z3 c6 D+ _6 w+ V: i. w' 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
0 V5 R6 J/ ^! B) j
' S+ Q- f# W% G" f! m;;[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]]% w% T {- X) y, w( @
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 q( ~6 {0 F$ W6 |$ s
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$ p% z$ ~# g8 h$ |$ ^
neighbor-total: H! N! Q& r+ k4 P. \ C2 K9 S
;;记录该turtle的邻居节点的数目 y1 l- Y" x: l/ x7 ?5 w7 c$ d
trade-time
! [6 Y8 C k2 v, c9 t) M, y o8 k6 b6 J;;当前发生交易的turtle的交易时间3 V% k) l* V3 N7 o( n" {5 |" h
appraise-give3 F6 F. T' K$ n: U
;;当前发生交易时给出的评价( d- a- K2 ]1 I( f+ s& z1 t9 N
appraise-receive4 l2 p, H" G# w. X
;;当前发生交易时收到的评价( R2 F/ [/ q* l8 f
appraise-time
& L& X6 T( R- b2 k/ @6 Z1 H% z;;当前发生交易时的评价时间
$ e& q$ \/ `. @! |2 y2 tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
( |& H$ s% ]& ~trade-times-total$ l1 R# @3 Q: k( h9 V. h
;;与当前turtle的交易总次数
4 F. j7 c5 J/ E, h& ?; M* mtrade-money-total
$ j8 F3 H2 r' x;;与当前turtle的交易总金额
/ o) ?0 ?9 t. K/ J2 J8 y- Nlocal-reputation
: T8 E" w! n3 M& oglobal-reputation6 n, s1 k0 V* H6 O. D
credibility6 b- ^9 ^! s# Z, ?( d! ]) U
;;评价可信度,每次交易后都需要更新
! C. m3 b6 S0 P4 Vcredibility-all
' B; W4 _" ]0 [4 _* c- 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- x3 e8 a* G8 x# X1 r" _+ I/ N$ B7 Z
4 B* g7 V2 e+ Y, i: w0 ]2 ]
;;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 |% ^4 @( c% d3 S- p9 R$ ecredibility-one5 T3 O1 \0 l/ Z9 x( E: t
;;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 u/ p& g: p1 a+ V
global-proportion
8 L8 s5 |0 J9 Jcustomer
/ J' Y& ~( C2 Ucustomer-no9 w, E" ^- k8 A+ d/ G
trust-ok
& v/ I6 a. o% ^% l9 }+ ^: etrade-record-one-len;;trade-record-one的长度
6 Q, ~2 c: k8 L' q0 b3 r]
* ?* D9 F; t" Y U8 {- r4 ?
% A- K' l: g+ [& J4 o4 B;;setup procedure6 o4 [$ s6 k( P) t3 N/ }' V2 D
+ a2 U0 U7 F: @
to setup
0 G. D& f! O; ~$ l* k$ Y
$ i; \; c. ]! a& G% a5 Y# |ca
# j1 N4 [# p- A- E6 @5 ^ R7 X' g. l& Q
initialize-settings0 h1 O# b+ q- s* N" ]
" z0 G. H' d0 `5 o( Z5 j6 {# M
crt people [setup-turtles]
, E8 U5 z8 N% X; ^$ W+ N( x# J6 x8 c* C+ E( s7 X
reset-timer/ H3 e9 n) W T& e \
9 N$ b$ X% D/ W7 J0 j: H* t+ ^% Ppoll-class
. @- z' r: L% P2 l* g: Q5 a- q) v6 `
; E0 |7 g# E& L0 {, o4 fsetup-plots
6 }2 V% ]& N2 V1 b4 v6 }: k8 R( T: f" x% D1 S1 n* U& i
do-plots
; s+ ?& _& z4 u/ nend( Y# B0 }7 I1 z S
; \$ U8 B; o7 w0 e0 z8 h' N7 O- g1 b
to initialize-settings
& t: h5 u% k! S" d
! Q( c7 M: Y) I" c0 \$ k6 \set global-reputation-list []
% R) w% g. G: Z% F& b
|3 Y2 N! p5 ?# w+ m/ \set credibility-list n-values people [0.5]! q3 _2 `6 Z( _5 h8 v
. v( n. E2 k: d6 y( b$ Uset honest-service 0
6 a7 `+ R3 z( V& C% w7 }' ^, Z. r8 z4 h
set unhonest-service 0' G! `) ^7 B8 C; B( @ E6 ^
* C* h$ n5 s: w$ c* `5 G; F3 W' s$ i
set oscillation 0, V$ w* m i/ w0 c
: Q& X9 a( d6 D G0 sset rand-dynamic 0& D( z: x; E: M: t; R
end' J+ M8 }& @& J2 q$ j$ U3 q& k/ D
\9 k9 W, [2 s( Z, r4 Xto setup-turtles
& ^( z: M- o* `5 @+ Kset shape "person"
0 C" [/ P& q: a2 l, @( jsetxy random-xcor random-ycor
8 R; {( P# W* {5 J4 fset trade-record-one []
+ p' S! z6 C* }+ D* P! q( J
; S) O2 k. `$ v: [$ S2 mset trade-record-all n-values people [(list (? + 1) 0 0)] % B- \, ~2 ]/ T. [0 @* D
4 C7 q! o/ j# I$ u* j. y3 bset trade-record-current []
8 C4 T, c, r6 a. w" Wset credibility-receive []
" y U1 W3 c: [0 p, f. ^. V0 oset local-reputation 0.5* C0 g' A4 T3 X7 D; R: H( \
set neighbor-total 0
/ ?6 p6 t& w3 c9 t7 l# w! O; h: Oset trade-times-total 0; }/ H1 E; Y, f* K) J8 y
set trade-money-total 0: U/ l& j }6 k1 ?7 S: l" z: F
set customer nobody/ X2 _0 \- h! I, e8 ~% b
set credibility-all n-values people [creat-credibility]
1 ~9 ^# Y. ^4 nset credibility n-values people [-1]
& `; U1 a. K9 b2 t: N# r2 sget-color
7 W' f$ I: S) c* d1 ]
8 d$ n* j1 c6 ]" O& rend
4 S2 o) h3 r/ \. p4 _% S( C0 S }4 S9 J- F: l: I4 I3 S/ Q
to-report creat-credibility* I6 }5 `. n6 d. w( F1 o
report n-values people [0.5]
# V$ `3 ~0 P: Yend; c; H' `$ }, ]; i& ?
: |. ~2 x9 h0 V7 K
to setup-plots
# f' O( z- f. M* w( m) F' j- e& V* k
1 q, h- J) @, j0 uset xmax 30' A, U. S$ x- w {0 m! P1 ?
2 _( y1 M1 L% n5 A/ d4 D6 \set ymax 1.02 k) H4 M: h% d h; {) E3 x. ]: o
$ b% e5 T( }! B7 ~% B9 I2 ^clear-all-plots+ [, z+ F& N( i7 F3 q2 y4 E/ h7 q
2 S& e7 X. J5 dsetup-plot1' \- A+ Q6 B, y
2 f6 o# \' x9 V9 i/ Asetup-plot22 K; h0 O0 `% {& b, D) C1 [! p) d
, t$ r& j4 L' k& I# n1 @setup-plot3
# k, K. ~, K5 h1 b3 s% a9 t4 iend
: X4 e( m0 ?( a) @# r3 z2 A7 h3 |/ w2 @2 w! E
;;run time procedures9 w: D2 x* `3 j5 `: w
: t# _ b2 u4 i+ S$ V) d7 b& R
to go7 p6 L% ^* \ J3 M0 H
1 P. p# f. {) U( P' Xask turtles [do-business]
5 Z0 B: t' v2 F7 \! i) N; Uend
( l$ y' J% K# B p! S5 F7 B" d5 o9 }& x) e1 g% y+ w, G
to do-business ( P8 ^* K1 a' X7 e
+ F4 p6 T$ h) I$ \
/ Z# L* H5 r! s" X+ X
rt random 360( i% A3 U# t/ y/ M8 t! U$ @0 l: a
9 T; g9 r' m6 vfd 1
4 o$ P; L1 e/ I, z4 D) T7 j2 q) }4 Q7 B: c6 x
ifelse(other turtles-here != nobody)[
, }# E7 `# Z: b# ]" j8 U
/ P* r1 f' Z0 z5 g0 bset customer one-of other turtles-here" I1 _ G' ^3 X- c, S. W' R
5 E) H. `- D1 [8 P
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
) d. s$ I" n( ~& G$ {[trade-record-all]of self
- O/ K' [) c6 | F2 d1 G4 }0 [% n;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 Q8 Q; j) I( E0 i9 [# O
) N4 Z1 n- m, e) z% R& R G/ N ~- Dset [trade-record-one] of customer item (([who] of self) - 1)
: g5 N0 o5 s. t[trade-record-all]of customer
: p% U T9 R1 U8 H. X$ @
& X8 Q4 I8 c* t" h* s$ j, Eset [trade-record-one-len] of self length [trade-record-one] of self, t& k) n2 w2 o+ J9 W
# k' A8 G8 G( S7 X. vset trade-record-current( list (timer) (random money-upper-limit))
. ?' B% S& s- _* G! }6 y# P; \
/ H: ` d9 }* L* c. j5 M1 Zask self [do-trust]& A2 w2 d, U( C! U0 b$ k
;;先求i对j的信任度0 e3 k' |: v) v6 M: M
0 N, x. E$ L6 d- b; n
if ([trust-ok] of self)' b3 B& |+ T! ~$ E7 `% g$ C! a
;;根据i对j的信任度来决定是否与j进行交易[
& f( R* [' {( b9 r3 y; iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) {' w+ ~' u" z A: e
) P! r+ Q3 W9 }$ G) A; r
[
9 }6 @5 I7 z- a0 L- s2 n2 f6 Z8 I( \
do-trade" e2 Y0 y! r* a6 N" _$ P8 f
( @3 D- g$ a/ u! {$ b
update-credibility-ijl7 B4 f# @: U8 G/ J$ h
3 c7 z: ?$ \) ?9 X, |: U& B" G
update-credibility-list
4 m3 d4 g) U. s* B% l3 Y# B, Z! b% T4 J. T. d6 w; S
+ W+ G! N* }7 [# |: x7 W
update-global-reputation-list
( |# A; g% L$ e! g* G) t' o" O* q( m3 G# K Z$ `9 n
poll-class: @$ d- H1 G. L% L6 ^
& z& |4 s$ K8 b9 n( \! k5 V+ e1 @' P
get-color
0 s0 _! x5 Y" T3 U$ }' O
4 V* P1 S1 T' v& g2 W0 ?* F7 c]]
1 Q x: q% G& Y+ w- D+ L* n) ?, V4 V6 G- ~( _" [. y/ |6 t1 a* h
;;如果所得的信任度满足条件,则进行交易/ j Y) G# {- K+ Z
: x$ q& T8 x% l: Z[
- l0 m0 D- l' y- t% o0 `* G F8 T6 O& Z3 z4 W1 x! e
rt random 360
6 b3 w V# o" B' N/ ?
+ P# K8 A$ a/ s0 n6 [# ~5 F4 Wfd 1
$ i g$ M" L2 z9 H9 Z- a+ A' X" a1 v% v
]% T' t' S% a1 o T! `
* a) q2 a d# i: J1 v' c! c
end
6 K9 d% L9 ]1 X% h
" i* M0 K1 k4 [% jto do-trust
' \' O) V7 J$ p# {" |7 rset trust-ok False
; j* U6 y% B% n& z( E# ?/ s! ~( c7 G& u+ h: v$ y* f [6 B9 j
7 w5 ?4 c6 t" t" \/ Glet max-trade-times 0/ X( S2 E; j1 ]! z! \+ l, o
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( e) J: q b6 A4 Tlet max-trade-money 0
; K: W; L. S! D% e* ]/ r$ {foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' B# J; C6 O# }& f9 Q- Rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 m' l7 j3 y* A5 @( T) C
- v6 e' @! ^4 s8 a, ~
9 Y( }# u8 v% kget-global-proportion4 @) |0 t$ ~$ U2 Y# f8 J
let trust-value
* h" l; P* ?7 b* d( elocal-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 l1 x+ O f2 {# I$ Q2 B- @4 Fif(trust-value > trade-trust-value)
$ H" t4 S: X( ^) @[set trust-ok true]
9 w; d9 u* K, i# V# cend! D. |1 w' {0 a9 [' h, r
) n5 o C5 w; x sto get-global-proportion
6 S( f7 q6 `& x/ y; b6 p9 ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 q1 V4 P. B1 \0 q
[set global-proportion 0]% |1 Q/ V# ^3 q! p8 O
[let i 09 G, Q$ {3 s+ q( I" b* P6 ] S
let sum-money 07 G5 t7 \5 k! \: c: ?
while[ i < people]1 P5 ^( Y, G) Q& G9 ?7 E
[
8 l1 ~1 w' u) o) F) b- p5 h" Qif( length (item i- A& m: l5 Y0 u Z
[trade-record-all] of customer) > 3 )* [) `& \* D. Y) C3 {! H0 q6 R& D6 Z
[, |) U, k/ w2 {0 K
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 ^8 ]; x3 W; U+ j* k: b
]
% R, A. z: x9 R2 H( \! V2 ~* V]7 Z. ?, {% {( V! {
let j 02 x- @ H0 c0 j' x* P( ~
let note 0% O0 v% M C+ k4 X6 H# h/ w6 e
while[ j < people]0 O( ~" l/ D3 K* B
[2 ?0 L2 m j1 g! [8 R8 `1 L- @- d
if( length (item i
" N1 |4 X! y5 v m1 S# |' l. ?( G' E[trade-record-all] of customer) > 3 )6 V1 D8 G1 P, O8 e9 ^
[% Q6 y9 {( w5 W3 e, k
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 e( ~* d# q# }( g! ~% O5 ~
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ p: y1 C# ?3 g. U+ V: Q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. z' C3 E ?8 J6 p]1 u# M/ c$ w( U' X. u6 h* l
]( a5 ?1 O. S, _6 y0 Q
set global-proportion note& ?' G1 u/ l* l1 C
]
( x" o. v( Q4 cend
1 L2 O( X# c$ b! N5 W1 v! Z# s; Q& f
to do-trade' W0 {" U. l# Y, q+ V. [6 u9 l
;;这个过程实际上是给双方作出评价的过程1 I$ ]+ T% o# D. Z' R9 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* L* o) m' J8 lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" ^8 d N3 J6 y1 ~4 A
set trade-record-current lput(timer) trade-record-current
3 }$ l9 { I# Q2 V8 u;;评价时间" O l+ z% C3 w! `3 z( r s
ask myself [
% d |3 _4 n. ^; |5 I6 Cupdate-local-reputation8 P4 e8 z( d j% N `+ \1 b/ I( j. J
set trade-record-current lput([local-reputation] of myself) trade-record-current) E4 b, `+ J) d- Y0 ~
]
+ t9 e3 k$ L3 y9 pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself2 o& C: H5 O t! I$ m
;;将此次交易的记录加入到trade-record-one中( e7 _; _* r8 A5 S2 @2 E2 @
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 _ W+ l6 h: o. x5 u
let note (item 2 trade-record-current )
3 E) I7 i0 F7 vset trade-record-current
( p* a6 }( G S1 Q1 H! ?(replace-item 2 trade-record-current (item 3 trade-record-current))) z0 k5 ?5 Y$ b2 ?' k9 a
set trade-record-current2 u+ R \0 J! T- ^, L v2 }
(replace-item 3 trade-record-current note)
" r3 k4 e$ \) m0 j0 J
/ ]2 D$ ?* V2 W( j6 b
/ [% K9 m. L' y; B; `9 |2 B$ X8 I3 Cask customer [
5 Y& k5 M) b ^/ Y+ \update-local-reputation* I" L5 x5 w! R* B1 l8 u) g$ L
set trade-record-current
- R. l; \: p, N0 |5 w }' e(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 b2 j& g+ ~: y
]1 D1 \* m3 G. d3 q: g
, ^, R6 d. J; v7 ^ q" d2 k1 @# S0 L5 C) {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 D/ [) O$ v5 o& S* K+ R8 a
$ O$ n% w* y3 m- Y4 {set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 ~. g4 ]/ `+ _ ]) j& j* r7 w
;;将此次交易的记录加入到customer的trade-record-all中- s% f8 x% {) O
end
* @/ N( V V# u. W9 n$ h$ a( s0 U# _7 Q" {) }. k1 W
to update-local-reputation# k" e. Z/ }, R9 n
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 J9 G+ R# f+ L! Z- Z9 j1 [* S& _4 _# D# F& C3 @
O6 z" P. S, m0 M; i
;;if [trade-record-one-len] of myself > 3 ; F0 D8 i% R5 _$ f; w0 k5 v; m& \
update-neighbor-total% q0 b& l: x# @
;;更新邻居节点的数目,在此进行; h4 z1 o2 s% Q- m- q
let i 3" f9 ], o1 D' }' [
let sum-time 09 h0 M2 L" v6 S; q" O
while[i < [trade-record-one-len] of myself]
/ ^7 c% O, n w% ` U[& m9 g$ d( b7 e( i5 z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# Y3 [" R$ [) b1 i( s8 _! c
set i
0 Q/ H% d% [* y7 y( i + 1)
, {! a9 l9 X0 M& s' I, W]
: m" L. T' d* i; i, {let j 32 O4 r l/ i# o# @3 {, N$ Y
let sum-money 0
& q/ u+ ^! D2 [1 cwhile[j < [trade-record-one-len] of myself]% ~6 A; D* f3 e3 Q3 d& ^
[
0 S s2 C8 g m/ B$ e- K0 ~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)
" d9 `! V) U' V* wset j/ a) \7 C! t& _) _. r& Z- R- x- y: }
( j + 1)/ {5 y+ }5 B) {
]) `( [# N: m) t' m
let k 3, Z) [: ^0 G6 l5 \" w2 K- {* P
let power 06 W4 T, O0 E' M) {" S
let local 05 S* \. s) Y: P& L
while [k <[trade-record-one-len] of myself]! F# b) ]7 R5 T# v8 k9 o" ]
[+ E& q: A- M. Z. j# Q* m7 L( ]
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)
1 D% @( R! P$ j5 V' r+ lset k (k + 1)
+ m1 n# j5 l2 F1 W" m]& e5 O# B n+ i, v$ U: o
set [local-reputation] of myself (local)0 p* q) |& T! @; N
end
9 Q) F4 J8 k# t% X' S- l5 X; ^
to update-neighbor-total
7 C' U) p+ x9 F7 t5 P2 X7 s. g! m4 p2 O: ] Z7 [% P
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( d4 d: d% c _
. m$ W7 P! w; ~. [8 H
* K0 `1 ` v* ~5 \0 Mend
9 L# k! h j; J+ G1 v) i0 t' ^: l* l: n: M4 K# e" Y" ^5 ?8 s" q; q- t
to update-credibility-ijl
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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。7 }! G0 w- d. p/ _4 {$ A2 w
let l 0
3 Q0 |: ?- J4 C( u8 F' ?6 twhile[ l < people ]
; Z: |1 |0 P/ y; @+ I3 C;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, F: I5 a! _. Sif (trade-record-one-j-l-len > 3)
4 H: i" n/ m/ R" f[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$ d0 K; [2 e1 \2 g3 u# i, c
let i 3
0 M3 |: @4 e: _. {( clet sum-time 0
$ p% m1 N" K0 x8 |* ?3 bwhile[i < trade-record-one-len]
' M; J# C0 N) M1 y: ^/ c[
3 V/ {, k& W4 B9 ~4 E9 cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( e9 ^+ U6 N! P r, fset i
# a4 R6 B T0 m, q( i + 1)0 ^) V3 c! r( ? E% c
]
+ d$ e1 ~" u! Hlet credibility-i-j-l 01 {+ R% H) V( w1 ^
;;i评价(j对jl的评价). w" p) C+ ^7 D+ e6 R! e
let j 3
( e- t9 ^% E( T* N' Glet k 4: ^. f4 C) E* F: a# J+ A: a
while[j < trade-record-one-len]
1 }& i Q8 w2 r( E* [: ][
7 i6 M. |; _# p, m" N3 ?8 Z5 t$ Cwhile [((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$ P7 o* k8 Q: j9 F
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)) T+ @: C# Q( Z" R: o( g1 h
set j
- `# E1 \. h* g0 s0 U6 ?0 u) \( j + 1)% y; ]. y: w9 B9 r
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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 ))
2 y; x% I1 D1 O% W
! { @/ h2 b2 o0 z
" o# Z' j" p1 D+ L5 mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& O2 F; Q( }1 U3 V9 j;;及时更新i对l的评价质量的评价
6 D2 B- t5 a$ I. ~9 O' _# `5 b r! Dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 n5 H' P- y6 b6 T& W. Nset l (l + 1)
Z7 u/ t) G: F& E) @" V]
9 W, d9 q d% Z/ A; dend
& I9 ]( b j7 g9 z: E- c
( P2 N* W* }9 i" eto update-credibility-list
6 P9 X4 R4 O& Z8 `# Llet i 03 k! Z1 E* A9 f
while[i < people]
3 P8 Z( Q: \; @( c. o" _[
' w, d% D# T; N* [; L8 Flet j 0: r: e( N5 E' W& l% H
let note 0% G& R3 c& w c" [. r
let k 0
( P2 C* G# s, U' C5 N;;计作出过评价的邻居节点的数目 g/ |2 `& ^. G1 s, ^3 t# l
while[j < people]
- ?& k' F% J2 b; c[
- H( k6 T4 \6 Wif (item j( [credibility] of turtle (i + 1)) != -1)
5 T+ u1 x; q5 l;;判断是否给本turtle的评价质量做出过评价的节点
, B/ r# H3 z8 v% k$ D, n6 b3 S# x u[set note (note + item j ([credibility]of turtle (i + 1)))
* \, X( |/ i# @/ ]4 H. D) y x;;*(exp (-(people - 2)))/(people - 2))]
* ^2 w9 V8 j7 S- u; V" `, _5 \set k (k + 1)
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set j (j + 1)
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: P% X# p; K" Z1 o% zset note (note *(exp (- (1 / k)))/ k)
9 u: v" x1 X# _! G% }: ?7 Yset credibility-list (replace-item i credibility-list note)! N) T" F" ]6 P
set i (i + 1)% {' d T$ R2 ~5 K: T
]
5 w. [1 }" `. q E: a- [end
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2 _: x+ {) l A( e) J* k$ t, h! Rto update-global-reputation-list
/ T w- J/ g/ A6 l0 Clet j 0
c2 ~! C, l* i5 Z: [- nwhile[j < people]& y, J \4 \1 u% ~0 d/ d9 e* [
[
! v# v' J) V( ?" l: Q+ t8 Plet new 00 d+ Y0 F) p# J
;;暂存新的一个全局声誉$ n* [+ |- w3 S: g: N. G& n
let i 0
7 M2 p4 \' D+ N& y. z' V* j3 X' C) `let sum-money 07 w W: O+ N8 B; u9 b
let credibility-money 0
. y& t' ]/ E* b( ^/ ewhile [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 B/ r0 U6 ~9 F: i
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 h& j, }3 w2 R2 H
set i (i + 1)( @& i% E3 J/ W8 X- T; U
]
& j( H: Y5 w A0 N$ h! D3 ?# zlet k 0! S% f" c& h/ j k, X% [
let new1 05 O* r+ U1 e0 K' t9 G
while [k < people]
. k4 | j h; I4 G[
9 o: ~: g, S6 O1 rset 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)
. D" W( M0 `% s7 k5 A2 e! K* |" P; ]9 gset k (k + 1)
5 q* {1 |1 e: S0 T]
+ R3 i, H8 ~) o! gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 W7 ^ x& x0 |& S% Lset global-reputation-list (replace-item j global-reputation-list new)2 [8 R6 E7 t2 ~$ G
set j (j + 1)
* m2 Y ~# A2 ]]- E3 q+ R5 o4 q% M
end o( q1 M( U* Q
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7 R/ d# F: Q9 P/ v7 f
" L# Z; y. P8 {& q3 Rto get-color
$ T+ R! g! u+ U2 t
' Y' H/ U3 O8 C2 K; \) Pset color blue
7 p M6 k6 k: J3 Oend% e0 {6 l' ~! |! m- I0 F% ]2 ?
: u' |/ F( l9 b: D, j9 Y
to poll-class4 l! U4 g: m; o1 Z# R
end
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to setup-plot1* [' V: `: a5 S8 A9 X/ r: J
7 x P1 W5 @/ b# kset-current-plot "Trends-of-Local-reputation"
( [- F5 |4 |3 Q! v$ R
/ I1 d% w$ r$ g Vset-plot-x-range 0 xmax" r9 c4 f0 L/ w7 t; N9 X
1 v) ^3 s4 w# u( d; J; g4 }) t
set-plot-y-range 0.0 ymax% t F# K$ ]3 B/ I
end- u* X4 h; C3 Q& v/ B* |8 X3 a9 e
2 C1 ]/ X0 R Mto setup-plot2
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set-current-plot "Trends-of-global-reputation"; B3 B7 Z3 ~0 @1 h5 L5 I
# {7 U. w8 s, y" ~/ i( b/ a
set-plot-x-range 0 xmax% Q3 d5 [; r7 @- c2 q- {
0 x9 W8 \; s1 Q1 u6 Pset-plot-y-range 0.0 ymax" t+ p4 O6 h, c3 s" C# O/ r
end
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to setup-plot3
( l+ u+ \0 O0 K/ ^# k
' {) I V: r, A `0 \, g2 lset-current-plot "Trends-of-credibility"
' ?$ @0 x i5 n
. I8 Z g7 _, z+ n- }set-plot-x-range 0 xmax# M L" e6 ^8 v' U0 }+ u
% H* p" h" y; q- e2 c! q
set-plot-y-range 0.0 ymax
6 B5 p6 ^ Q9 X4 _! B. b' M0 ^end
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to do-plots
L9 C+ S2 v# ^ c6 Oset-current-plot "Trends-of-Local-reputation"2 ]$ j$ k0 ]. r5 ^" L, P$ P
set-current-plot-pen "Honest service"
, J \# W7 V+ ]: K( _end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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