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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
4 D% a/ W8 r0 Mglobals[) W3 r8 y0 u; u6 J
xmax# h* X" h0 W* q/ a0 F$ D5 f
ymax1 I" L1 X" w% s8 `- u3 \6 ?
global-reputation-list# `0 ?, l6 c3 O, W) R" J& O
! K. m5 ~5 W8 V: J; t) a4 z, i;;每一个turtle的全局声誉都存在此LIST中
# I ]/ ]; }- i5 n1 Fcredibility-list6 m% ]1 N) R' t6 U0 ~
;;每一个turtle的评价可信度
, `' c: \) z8 v( z8 @; thonest-service. x0 ~! R" A% v7 n
unhonest-service' d7 M$ c3 C) U+ N/ |6 T
oscillation
6 v4 W7 }: ^2 ^- O! R5 @* U* Qrand-dynamic
5 W3 e5 u, ?& S) Z0 }! K]( o: z1 {. }4 y' y8 v) E( h: H
' k: w$ m6 b5 m" k! L( K K9 ]turtles-own[. ]5 X. i/ V- y9 Q/ t
trade-record-all
7 b, H5 M% h' V: N;;a list of lists,由trade-record-one组成. J' b* r, k8 M4 l5 e1 o& w' ^
trade-record-one
. f! z/ V+ C9 w8 E7 o4 P6 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
4 J0 x5 L- S9 N, t) Z* w
9 N$ i% a" E7 k' q% F# \+ \) t% T;;[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]]- T! }. l( Q3 a! V5 ^4 C
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]
* s" x" y( q" h) {. 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
5 u% F6 [1 g( k/ I% ?- E% Hneighbor-total2 |, B6 t. b. z% o6 W) g
;;记录该turtle的邻居节点的数目
- R! f& I. a5 J) H- _- Gtrade-time9 s/ l# d8 M( p" b: j+ h1 R" r
;;当前发生交易的turtle的交易时间
0 i/ I# R& ~6 M. A) O8 O3 N fappraise-give% K! e- D# d6 [6 b2 T' G. h
;;当前发生交易时给出的评价! B4 L# @1 }. ^* b( a) L, v; c
appraise-receive
- X- P& c0 j, H;;当前发生交易时收到的评价+ ?- n3 L- G& N2 c
appraise-time
- [* X2 J( f# M8 A1 p;;当前发生交易时的评价时间
1 Z. K1 S& q' v" qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉4 S7 @' u- I/ @, g5 ^
trade-times-total3 o/ L& W! v4 l5 M0 F& A S# V
;;与当前turtle的交易总次数3 F9 q) w- r! Q$ A: Z7 q' [0 X
trade-money-total
3 b' X1 x7 n Q' _;;与当前turtle的交易总金额# [" S9 X. p; ^0 o7 f* n
local-reputation9 I( v K0 \& p
global-reputation
# v. ^; t$ x% F- L. Y4 o0 ncredibility
5 z9 Q4 r H2 T2 A0 Z;;评价可信度,每次交易后都需要更新
$ O( D! [8 C+ z- Fcredibility-all# h) ~% L. \+ r" M, {- J- 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
. R4 C5 |3 Q+ G0 M# ^9 }4 e% G( a0 f
;;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
: p1 ~$ C$ B) j. Rcredibility-one
# K4 [+ h; u* j! ^;;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& `( M! [' N" \4 Q) m
global-proportion) p" m X: X# ^+ J+ a2 E
customer
! G( W1 ^0 V: Y) P! r* Dcustomer-no
) `1 |! i2 d" h2 n/ ~8 x! v7 ntrust-ok
" h; W8 N; H7 r, Ztrade-record-one-len;;trade-record-one的长度
! N0 S% [5 \9 r8 p6 w1 L% d]
' C2 w8 V. \( k3 z) H
' `1 x) p4 k0 B+ P5 h# ^( l/ i- };;setup procedure
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( a U* }. {+ m3 r) {* I# U( Q% \, z Fto setup
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7 [- L# x) h9 G8 m; d% y
initialize-settings0 M: Q/ R1 p$ J) ]/ [" L
, `2 K- m! U8 Z9 K) y
crt people [setup-turtles]( l; e" m4 K# ~$ k7 }, v# P
s" {4 a2 B: sreset-timer6 o- s9 l* ~5 L( a6 U$ u/ _$ v$ b q1 n
; T {+ M- y) U* k" T
poll-class( I$ Z9 U/ G9 c% y' Y
0 e, d, }; q) X& ~setup-plots: F/ X q& h" S" D7 ^* K2 M3 J
5 d$ Y% |1 ?( v/ a* F
do-plots [+ w* L9 d2 S, M9 _; ]
end
! b7 Y2 F: L8 y" y+ F
0 W% {3 {5 b& {6 M! W* Z5 j# zto initialize-settings
, m4 S% J5 T& O4 M- }
3 Q; O) M8 C# |- q3 Cset global-reputation-list []
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set credibility-list n-values people [0.5]- c, A0 q% j" N6 [
3 R# p2 I- u6 k' I: f, q0 |, lset honest-service 0
, J# Q/ ^+ C9 g
4 c4 R" u' R; M( [set unhonest-service 0
# b3 S- S/ B5 |+ o7 Q5 w2 {* m1 H" s% J* l5 q% B) x {* V
set oscillation 0
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set rand-dynamic 0. d2 c) C7 K8 Q1 [/ {, c
end3 r$ @! Q1 F8 J' A s3 v( F
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to setup-turtles 2 A R/ Z0 M9 D9 N% _
set shape "person"# |6 f2 H l" w2 |7 Y1 b
setxy random-xcor random-ycor
7 @) n: M/ r& @' c& i5 Vset trade-record-one []# O8 i' V5 n2 y+ X! y3 Q* t
7 T5 y7 ?- @; n, u! Lset trade-record-all n-values people [(list (? + 1) 0 0)] * v: r4 R0 k6 Q5 V; @3 ^$ w
" T( z3 x( D& r& s% f
set trade-record-current []
6 w; E5 @0 Q+ }* x" Jset credibility-receive []+ n7 P6 u/ f0 H5 \+ t
set local-reputation 0.5) n( l, T& W+ `
set neighbor-total 0
1 O5 ~; W2 k/ p& F8 ~# kset trade-times-total 0
K, k5 h2 i6 k L! ^; ?set trade-money-total 08 u/ ~, d0 P6 t$ v' Y
set customer nobody
& Y" ~& l( Z; Lset credibility-all n-values people [creat-credibility]% o9 b0 h, b' T( W( D) L4 o4 J$ \9 j3 S
set credibility n-values people [-1]
8 A& n% G1 _ X8 U5 J8 {+ o9 f; Bget-color
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, }1 C; Z' Y+ M* b8 P0 ^& Nend
9 G- }( X! g8 q1 V8 M! f* d" A+ \* M! i/ [, e
to-report creat-credibility; ^1 e& \. @+ i2 z' j+ Y
report n-values people [0.5]
1 N5 p$ B. x. B( L' M5 Y5 |+ m8 Y1 cend
3 G* d* _5 H. ]9 p: {; F3 ]! }
2 ?/ u7 G: `( s4 y* }# {) ~to setup-plots
& V1 H# k8 `5 f( L1 l% X
2 g' a. ^0 }8 n9 j6 s4 L7 nset xmax 30
8 c) Y3 V2 e/ U. y) E! `1 Q& `) Y1 h ?, O$ p: B% @+ S
set ymax 1.06 T9 g* p. C) M: y; ?
* J4 ^5 S, M) ?
clear-all-plots2 k; O0 I/ N R5 I, I
8 }* U$ c: P) W, O1 {9 E% Lsetup-plot1
6 V5 j. A0 u |: A% z( L3 @
1 }. q+ h7 @9 L: G+ y6 Ysetup-plot22 _: L) ^9 @( b- _1 \
8 z" _9 H+ V' I' O9 m- \setup-plot34 ^6 h5 K4 ^9 z& K
end
7 S4 s2 c/ b7 d: \3 k( l0 E4 o* [- d N
;;run time procedures
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to go- v. P9 j h8 t) G$ x
1 o. l2 Z% ~" S$ g2 a2 s5 sask turtles [do-business]/ A1 _3 Z% r9 W6 Y- J
end
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to do-business - k& O A9 y+ R: }4 R1 I2 i
9 V4 u B8 R- {# n4 _2 [4 w" m! x
rt random 3603 k( i- H, Q) O, B. h. G
* w! i, V" q2 l: V/ E+ }, jfd 1" y3 X: R& G3 [( H3 O+ `
1 w' J5 h! O7 m! j- ~
ifelse(other turtles-here != nobody)[1 y8 L, y. S( ]% H
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set customer one-of other turtles-here
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6 u+ |. {" g. e/ M+ }- Y;; set [customer] of customer myself
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" h/ i% d+ o @ I0 Sset [trade-record-one] of self item (([who] of customer) - 1)
; M: R: `) x7 s[trade-record-all]of self
) f1 Z3 t( {# p. v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 W) f* N I6 n2 E$ \5 `
I! B& N, Y! T- g6 K( sset [trade-record-one] of customer item (([who] of self) - 1)# F7 m. j) U& b0 D0 r2 L1 N2 e
[trade-record-all]of customer
# ^- A( Z, A, }+ q: L" w/ G7 j" R( A) c( J- d z1 X8 L) X* O7 C
set [trade-record-one-len] of self length [trade-record-one] of self! W0 G8 w! C! S# m5 ?1 \' y
- i; T7 R8 R1 O) _) Tset trade-record-current( list (timer) (random money-upper-limit))/ J& t3 w, d5 c9 p
) [. o0 @5 q6 h/ }* Y
ask self [do-trust]3 c: F8 {* L' U3 J
;;先求i对j的信任度
+ `4 X4 H. a4 N$ d8 t7 ~3 P9 h, k) _: j4 O6 t2 b
if ([trust-ok] of self)
% K, P# C6 u; W/ k! a4 l- K1 H;;根据i对j的信任度来决定是否与j进行交易[
: Q. ~, r+ @- {6 j |5 f7 iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 r% U. {# N* ~& s& O% ]' F6 [7 f9 q, F! Z) T2 D* \, }8 O4 X* \
[$ i( d( m& V0 m; U Z+ Q% s2 n
* W0 a6 p& R5 _0 L
do-trade; ^5 f! ~' o2 f
& C6 w" ?/ p% P5 W5 B
update-credibility-ijl7 [0 z3 ~; {- I# A4 r k: X: w, M
, Y9 X% Y' Q+ ^
update-credibility-list+ O# g5 Z4 e8 y7 X# d+ P n
( ]* u7 P* _/ d7 {8 q8 b& u
: h1 Z2 N1 G; Jupdate-global-reputation-list# P$ D4 D( G" p2 ]( ~8 ^
S- `) X( {( b8 `; v
poll-class6 H7 {9 P* s5 A% t+ @
3 ?& V: l1 j- W3 \
get-color$ A3 K+ Y: \/ k; s# ~+ h0 C
2 U- \$ A# v9 Z/ Q]]
$ P( N6 U! G4 W' o: B& i) W8 y0 k( z) O( J' h7 k& E
;;如果所得的信任度满足条件,则进行交易
5 T: k! p' d7 {1 L2 Y$ i* Q$ _" M
. c6 ^/ s# D9 P# b! o! `; K[
2 W! c7 Q( N D1 z1 V8 B
' ^) z. S/ D& e- L( Lrt random 360
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7 | {. G8 L. B( H+ R1 Wfd 13 b5 S, |8 T, M- ?
: Y8 x2 u, {. U0 ?2 f/ C8 u
]) E( w# U6 f Y
( M6 Z: V- N, X6 f0 j
end
) k+ }% K! x" b' n1 y% l% i: b0 e; w0 H5 Z
to do-trust # _! {# {( w! Z( M n
set trust-ok False m6 m5 O6 R, {+ c/ y! k
* w0 f! j. g' e+ f
7 }% k' ]7 U' T6 `6 K3 tlet max-trade-times 0
5 T d- y0 U$ r8 \: y* Q4 Uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 c1 n* S4 U& a! P1 ?. Z4 Llet max-trade-money 0' u# d' M0 Z7 b4 r2 f0 i* j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ V( V6 O& X& j1 Klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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- \) ~4 E, A4 r) x3 V/ W/ k2 p: u
- s3 I8 }4 Y6 G; n/ i, }( A1 {get-global-proportion; y0 A/ h0 A9 C, a
let trust-value
% n. `/ b0 E$ s' {. \2 ?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)
2 n7 O- _6 i* l4 E" v2 Jif(trust-value > trade-trust-value)( s& \& a) F7 u! s
[set trust-ok true]
0 W' G" ?% q$ o* bend7 ^* v: a( e# ^4 O
3 A& E) l6 D' H* D9 Q9 G
to get-global-proportion
6 _' R- W" ?1 r6 q5 _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 _$ ]7 p" p2 L9 K7 `% G
[set global-proportion 0]. w2 r) V* Y7 T6 l3 Q/ z
[let i 0# A8 i, y3 a2 W1 h! c2 n" S
let sum-money 0' U( V. _* I8 Y8 R& h$ S/ F, A5 r. i; H
while[ i < people]
: t: s$ A& g/ b/ y4 f2 L( U+ n& D L2 h! B[) o& v! K2 U5 z \4 h
if( length (item i( c! v0 D* t: c& W" \
[trade-record-all] of customer) > 3 )
: b! |) u! ?7 R: |6 D' k7 f[6 A' _6 |( N, ?, M5 W: U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]: {: {3 z$ J5 D' F
let j 0
# i5 A8 o8 u9 u; x }let note 02 k, [ |1 t) d0 c7 q+ K
while[ j < people]/ I7 C+ z$ c' |5 o( b8 ]9 I
[6 r* W3 d, y; h9 j' W b6 F
if( length (item i. f- _5 V6 X$ f7 M' z6 [1 O
[trade-record-all] of customer) > 3 )
/ }. r+ b9 X2 w# j0 B+ |. U[
" R: b3 r; _: @7 d# i2 M/ j' g! T3 Nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! E: M" R9 ^2 D, s3 Y- r5 M8 S1 ?[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" G2 |5 Y' ]6 N k4 ] ]/ I& X. h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- ]* k4 b; y0 ]6 c+ x4 D1 h]
3 {% T T7 H5 P6 O' y$ I]
: p3 ?1 m: D/ m7 G0 G3 E+ Sset global-proportion note
! x" ~1 p; k% o2 S, g) U, | a9 m# T]: L4 H! P* `- I, P ~0 P
end
9 y# j6 F9 k/ ]' I2 m7 g# L. n* T. ~
to do-trade
4 g! O" p: V3 c8 ~;;这个过程实际上是给双方作出评价的过程1 S4 H: J5 m; l& k: `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 R; Q* p% y, y+ @* A0 d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ i9 N+ G2 r7 E( u- Wset trade-record-current lput(timer) trade-record-current3 \8 {0 |1 N; s" X4 C+ b. j
;;评价时间
9 A( [) a% `- ^ask myself [
( _7 F" G9 V0 I8 a9 D) I+ V! Zupdate-local-reputation. @) K+ [& `3 f/ K& z
set trade-record-current lput([local-reputation] of myself) trade-record-current
4 _" a1 J. X; B& G' a]7 _/ z% T5 V' S( u- w: a- ^$ B4 A1 ?
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) U% e' y1 ]. G4 L
;;将此次交易的记录加入到trade-record-one中7 q) m: B$ ^/ w$ V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) G; N. K) X0 l- K, L
let note (item 2 trade-record-current ), J- c; i! f/ Z' N. v: L
set trade-record-current/ n' E1 U0 N, L1 _5 [4 T
(replace-item 2 trade-record-current (item 3 trade-record-current))# F" ?* j5 g& {9 y) _
set trade-record-current
- Z* F9 B% b: {/ s8 p(replace-item 3 trade-record-current note): U- B; I3 y; V5 I4 S8 q
6 f5 }, G* L6 ~! y3 {, s$ x: H6 d. d& R
% C! z0 s! H. _6 t1 ~+ L# B( M0 R: dask customer [- ?; y& k3 i, W7 N3 h7 E
update-local-reputation U6 s% _. _, o/ v. J
set trade-record-current3 Z" T' i( }& T9 Y" r/ T [
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 e3 Q( @! [" n, u2 S$ c! w/ u$ D
]9 C/ `+ ]' g9 H7 C7 J- d- B
8 A8 V7 e0 g! h# z2 q" k& R& k
% c$ j2 `# O0 Lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& I1 ^& l6 X% C J* a
- _* T: {- M6 b @! D, i: k# a8 Y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
D/ l$ y8 Y) i1 k8 r;;将此次交易的记录加入到customer的trade-record-all中
1 n+ \9 k9 c9 l" F5 t" ]end0 E. o6 G, \4 k
$ F2 j. w: G( s9 [" z% oto update-local-reputation
x$ w+ z, N5 I6 t8 G4 Iset [trade-record-one-len] of myself length [trade-record-one] of myself
6 m# Y- n) a; ^: L: n
& ` E( Z; j" C+ W+ q8 p( ^8 t. n l' `' V" K8 F# v) J
;;if [trade-record-one-len] of myself > 3
, a- c# v; f+ @2 _update-neighbor-total9 |* }# C. G# q. r% Y+ u
;;更新邻居节点的数目,在此进行0 L' f' r9 p9 z" C2 r9 F
let i 3
! }$ Y6 x+ ^, @! L/ u- elet sum-time 0
9 i6 v; q( W. G) N5 _) Z9 K, Xwhile[i < [trade-record-one-len] of myself]5 x. Y6 ~9 k+ y; U' R1 d- a# T; |" y8 _
[6 f5 e9 A! ?4 _: f; R Z" R
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 z& G$ B, J. ?( Aset i% D! o( T* i' K' e8 b- i
( i + 1)
8 O& Y5 L- r3 \& r# N1 r h7 ~]
/ C5 H/ D2 z, |5 Qlet j 3
- q# b, ^3 o5 u( Klet sum-money 0 ]& n/ S$ ]0 v/ C9 _+ J* q
while[j < [trade-record-one-len] of myself]
; @$ I8 ^6 z( l+ C8 \' L9 D7 r[+ K% R6 w" E; ?1 B0 |, F* f \5 Y
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)
- P9 K* k6 \6 R5 H" M; a- wset j
* h. Q9 L- L7 Q( j + 1)1 \$ L$ N# a4 ?4 U: c
]" Q9 ~8 l$ G" T+ Q: u
let k 3. j# r1 }. A8 a! s
let power 0% l& s0 d2 i' K4 S6 |. ]6 ?( k
let local 04 A- i: D/ A1 C9 Q) I
while [k <[trade-record-one-len] of myself]
9 S) y& I' W# E. O+ t[9 }8 q" E, ^4 U& N
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)
2 e4 G6 }, g6 g6 cset k (k + 1); M' l4 `- x% G9 V
]
& p; _2 @; f5 b8 bset [local-reputation] of myself (local)% q* ]& ?8 J }, a
end1 X3 V; W$ E, ?( b0 z
) \9 Y1 j# G! Q/ kto update-neighbor-total
, T+ H/ m- W$ p; H
3 r6 q1 m( s$ k2 @7 ]' a7 Lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end/ y& M- P" c; \; M' i
* x+ D* {, D. @4 B: C
to update-credibility-ijl ' Y: v& p1 B+ l* Y- S }) L& y
b- T- z* s& @( V+ u+ i1 `;;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。8 R: \' J& D( v; l9 @, }+ M
let l 0: y) D. w: i9 G, C7 {2 P
while[ l < people ]
) D( f/ J5 n! t9 C( m& q3 K4 t;;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1 |" o8 ^" V% V c$ H+ e
[- W+ q3 _% w# c; @2 _. j9 G
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); J& b" n2 S0 q8 X! x
if (trade-record-one-j-l-len > 3)1 }7 x+ B1 q( D+ m
[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
' a6 N) v, U; u3 ~* j' K" Qlet i 3
! ]) R- D Q# z% e Y% N n) Y' [let sum-time 09 G6 o; V# _. G/ H a( p6 j4 u
while[i < trade-record-one-len]
3 W% I1 m) ~* ^ Z( q) g8 i[+ j3 e% G7 W) T6 |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 C& X% [1 B( m0 Q$ N! t1 nset i
, r: p1 x s/ s( i + 1)+ N2 L( K) f+ g- l7 q. B! [0 @
]" | e" H2 T# \* q- W' g
let credibility-i-j-l 0
P& O+ t8 }" o' C;;i评价(j对jl的评价)# L0 @9 Z( ?1 |5 |) J
let j 3
) u: d3 K3 `9 mlet k 47 O4 k. R; n2 c0 z2 h& ]
while[j < trade-record-one-len]
L' g5 q1 o4 O& K3 ~[& e2 l( U% [) U
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+ K' b9 G: h/ mset 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)% o7 }& q; X# ~( \1 Y* U& K* K8 I: s
set j
$ W. ?% T2 W, Y/ j: p# V( j + 1)
% n8 ~9 g: S: y' V C7 s. U! q]
* t+ O+ d/ n) r# K9 Vset [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 q+ \+ @* M# M- }0 K; k+ h7 N+ e' D# J9 g& S1 i+ [
# Q1 C. N2 J6 K0 G+ @- W6 Z+ P
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; N) W1 X5 @" i;;及时更新i对l的评价质量的评价; ]6 f. A6 \3 e8 N* i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 n2 {3 K6 A% g0 k# F
set l (l + 1)5 s) _2 B1 ]# z' ^; `2 B
]3 F5 Q' [9 j, }0 n) O
end
8 y+ i( q" f3 Q; Q8 c q' a/ F4 O' ]$ T& l" Z
to update-credibility-list" N- {* I5 k. K6 t4 @/ @
let i 0, i) z" Y4 D2 h, o1 X; I N
while[i < people]
+ ]% _# ^5 R. c! [[) }) [; O4 }$ b- m& g
let j 0
- H3 o. T; D( ulet note 0/ l7 ^6 E2 r% [ J: k
let k 0
1 s' A. w6 E% H+ l; J( G; {# x4 r6 W;;计作出过评价的邻居节点的数目
3 w$ c0 \5 l- Q4 k3 p# Wwhile[j < people]" F6 J" A3 s3 n; Q) x4 L) G! S, ?
[
( L W1 ], F) G1 Jif (item j( [credibility] of turtle (i + 1)) != -1). t0 j9 c; h5 t0 p# }2 b
;;判断是否给本turtle的评价质量做出过评价的节点
0 J8 C( N0 @; I; ]$ s( |* P9 A[set note (note + item j ([credibility]of turtle (i + 1)))
9 w. } Z, j4 u$ Y2 b- S;;*(exp (-(people - 2)))/(people - 2))]& A7 N7 P, y) c6 e
set k (k + 1)
2 ^3 F p8 m/ Q$ C4 j]
& u3 `; N4 K }2 g7 Aset j (j + 1)0 U' O& D0 K$ }" J/ g$ t
]- ^& @: h) `( R+ y! ]4 y! r
set note (note *(exp (- (1 / k)))/ k)
& c& u9 v3 u- S( n: N1 ^set credibility-list (replace-item i credibility-list note)
/ L& D) F: N7 e+ H: i9 w C* iset i (i + 1)& |$ }" @+ j$ ?6 ^7 z
]
, L& V! l0 w- W) Jend
9 }. @2 @1 p: L. K6 u: p% I# X: d9 f/ d9 {, x7 [0 i- o/ }5 i
to update-global-reputation-list* f4 j1 j- a5 i- Z/ f; g3 B/ r1 ]
let j 0+ d N1 x7 [. P S1 M4 A- X
while[j < people]
+ D8 ^, u+ d. `, r i" _/ v. I[
6 P# R5 s: [" `% J0 G7 U. I$ r8 Alet new 0
+ u* t* Z6 R8 t3 |, `;;暂存新的一个全局声誉
1 P, g$ }) i& o% Elet i 0
- d* K7 k0 Y T' ulet sum-money 0
: k4 z2 U4 s0 m2 Tlet credibility-money 0
* P" V- t% g. [2 A8 V: cwhile [i < people]
6 w0 }/ V" L( U/ t% L/ R5 k[
0 j. h; ]! {, L: ~set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ z* I- L/ t) o$ }' j) r/ dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# n/ F& y/ ~$ P, N! `' y) S! ^set i (i + 1)) Q/ M/ v3 z1 w( {% G" t# o. l Y
]3 o) D. N6 m7 a6 M* |7 U( \) O
let k 0
1 G2 i4 v5 m d5 m$ S4 ]3 v+ }let new1 0: A2 v! D8 H5 D) l9 e3 J2 K# p% _
while [k < people]/ k" Y' G1 Y. X3 A0 P. u8 Y% v
[
% }0 d g) t iset 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 H9 F1 \/ C1 b/ U
set k (k + 1)
2 L9 r0 A# j% ]. {9 S7 E5 l2 e R9 P]8 i5 n/ e* _* m( U: ]6 `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& B. ^3 P7 Y6 W" k- Oset global-reputation-list (replace-item j global-reputation-list new)1 k. ~( }( {% p( S8 p2 d0 M
set j (j + 1)
! o- A' s+ {. U+ ~4 \]) o: c% [& i1 ~
end
6 k/ l( b. K9 f/ \, Y3 Z/ ^7 j9 ?% F0 Z- ?4 ]/ U
' h& I7 q% e( L( S
5 K1 L4 V v' Z( t8 H$ o3 S8 zto get-color
( F3 `2 k9 K3 P6 _9 i8 t0 |5 e
7 V* M2 [' R% z' ]7 gset color blue( ]2 A! z" v8 \$ U7 E
end0 ^ y2 U1 p/ T
' |3 ?* \, J' ]( ]& K' H/ j4 M* X% K( Uto poll-class p5 E* r% P8 R0 | f
end
% _) i! E# n/ K! N
3 u6 p" A3 n" j4 ?to setup-plot1
6 I' v g" o& m3 g
4 u2 ?, A8 b" Y3 q6 [set-current-plot "Trends-of-Local-reputation"0 p9 }% B, Y" _: n% z
. m$ W! U1 x1 Y7 ?3 @6 r# A7 T0 I
set-plot-x-range 0 xmax* @0 |: E: U0 K* e7 I: d4 N
Q% r; |7 n; F# _8 xset-plot-y-range 0.0 ymax0 B4 S/ Z- Y2 P3 L- f! f
end3 t! e9 |2 i8 g4 r
- Y; ]5 y* l$ A8 D9 _. a
to setup-plot2
. l- E' E# z& {9 q! q6 Y3 s E% d( o
set-current-plot "Trends-of-global-reputation"
! ?7 Z; O: q4 [/ t! S( k* S8 u. s! t8 w
set-plot-x-range 0 xmax+ z' m. d6 d7 ^! c
9 W0 w# [ ~! ~! uset-plot-y-range 0.0 ymax3 w8 U% @7 R( J1 _' q: `2 ~
end
! k* Z" @5 R" N Z8 C! b5 J% r' I# n K. C; _5 }
to setup-plot3
6 @4 f* @7 r5 o
* }! l8 x9 H2 {# j* h4 xset-current-plot "Trends-of-credibility"( t% R$ D' s1 l7 t
9 _6 { k% g- l8 x; X# `" [4 y" E: g
set-plot-x-range 0 xmax, Z4 N5 ^. x! c7 F+ ?9 x3 o" }& q2 G* Z
7 v5 p- w( m) v/ q+ V* K0 ^set-plot-y-range 0.0 ymax
# o1 I: M8 l" J+ Fend+ @; u$ S3 T f3 O2 J
& h" \& H( ^) ?& a
to do-plots5 A/ ]# S3 w4 r; S
set-current-plot "Trends-of-Local-reputation"
, v4 A$ B5 e' \8 g, L- Mset-current-plot-pen "Honest service"
& Y+ n( i5 {- Q( G. f6 y3 aend
t3 j5 D1 r- R1 G
; E6 k: b8 y3 o5 D- U6 R+ B[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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