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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
6 g1 e8 k5 N' f3 i" w5 Fglobals[: L+ v4 c$ v0 n& Y
xmax4 h$ \6 `1 o: f9 s
ymax
, I* w% f W7 j# sglobal-reputation-list
: H7 y" o4 d. f2 s. ]4 ^/ \" x0 e. T2 a8 }
;;每一个turtle的全局声誉都存在此LIST中 c! p4 Z' d4 C6 Q% y9 p4 N" v1 ]
credibility-list5 q) [1 s# U3 D% C' v$ n
;;每一个turtle的评价可信度 a! k1 x8 ?8 R+ S( E3 m1 K
honest-service5 }6 b; z: j; E* z# z$ V; p
unhonest-service8 A7 {$ U% }/ H. A# v
oscillation
K$ c' O h4 frand-dynamic
' O% X8 ^8 S7 |. p9 c2 t]( E( V% s: }& }6 M9 t
; R- B% j/ @% r2 G. r: r+ x+ o: Fturtles-own[
" q- z; [5 B( r3 T/ Xtrade-record-all
5 A# F0 K% @: m& V% f;;a list of lists,由trade-record-one组成( h7 \9 K2 r9 U- n0 O
trade-record-one* ^9 e$ V( M7 D' j8 N5 S
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% O1 a5 I) ?! ^
4 g# ]( l7 v$ j
;;[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. m, s" T8 @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]
' o$ V7 f& n* \0 |7 x* M+ Fcredibility-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
; \- G! z8 c* \7 ~neighbor-total
4 I( V2 E! G9 i" t/ }8 a! f) P;;记录该turtle的邻居节点的数目+ C8 Z6 e5 J3 S- V+ \4 x, N; a
trade-time) Q3 t; D( @6 g- A
;;当前发生交易的turtle的交易时间/ L3 b) O. t! r
appraise-give
& t* p! Q1 z9 B; q% ]. p2 C;;当前发生交易时给出的评价% i7 i& x5 E; K Z2 w
appraise-receive
4 d+ Z) q' G Z7 l0 O;;当前发生交易时收到的评价
* M8 N) x5 M- x4 m( {! xappraise-time
. h( [ U% i" p6 u' i* _, o, S;;当前发生交易时的评价时间
1 Z6 [; m3 _5 p( ]: {local-reputation-now;;此次交易后相对于对方turtle的局部声誉( g" u* G2 V6 N Y6 H$ m
trade-times-total
- b( j9 X/ G3 L ?2 [;;与当前turtle的交易总次数
( o# H3 r7 V6 v, [/ Etrade-money-total
% C6 `8 B! W9 P# v;;与当前turtle的交易总金额
1 q, x+ f( G+ x- l1 mlocal-reputation
( E) C' S7 C A& Vglobal-reputation; _0 M1 o! d0 o
credibility* G! q5 y Y+ Y4 q- v
;;评价可信度,每次交易后都需要更新8 g$ Z/ g; ^8 o
credibility-all% J, {$ C" b9 b. W: @8 m2 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( U& ~$ n0 z/ v' g: P8 h
" z/ i8 M* C8 B7 j; p6 {9 S) W
;;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
( v( U' z$ ]* t/ P, jcredibility-one
: k) P- r. b+ E F G5 E;;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* ?$ R4 _! d( r* m# I1 h
global-proportion
. I, p/ A6 }' @; v1 r' ?; w; Fcustomer
' f. f, V* x0 u7 ~) l6 c: Gcustomer-no
1 P% Z" ~3 U$ b1 d2 i" |3 ?2 Ltrust-ok
/ G4 K% M4 A- X* l' f; Q" }trade-record-one-len;;trade-record-one的长度* S5 M8 s+ {5 ]- ^: T' S, T
]* D8 ]% p" I1 i% W; B
) t4 P3 X+ \: e& K( J;;setup procedure1 Q- a* T& {' N( t" P: E
& l; }+ T" O+ v
to setup
: N% @) I2 m6 w
& T3 V9 K/ {3 k9 x$ \$ C, Y# n1 }ca
5 J, x8 a, q. {1 y) L
- m9 \9 `4 Q. r, C! ?8 h3 ]6 Qinitialize-settings% t/ ^' X2 |. t7 d+ N% F7 a
9 Q/ C$ N! m+ u$ ]crt people [setup-turtles]
( U! m( h- |2 y( Z, w2 x: |. q6 T
l* b7 ]6 U( q6 [. Freset-timer
$ h c# i( K. S0 P9 ]6 Y; A: v0 c
' o/ `# f! W3 qpoll-class
. N S4 U! h) v: \! Z, g' N' J: `. r; x5 l/ u( x) N F
setup-plots
$ Z q& ]- U* S6 ?4 C
- n( h2 k) w9 ~% `0 ndo-plots
6 G7 }5 ?8 T. Y' ]end
$ F$ H6 ]9 Z: R" d/ b3 {3 [& {. i0 u8 p1 {
to initialize-settings
! R3 U p, \" ~, ? g# e8 G2 O5 C6 D! p6 A2 B# ^
set global-reputation-list []
8 }: }( ]. x% B: F' t( ^, g( q& M; p$ X/ }) Z, y, n% z
set credibility-list n-values people [0.5]
9 O5 w s+ d1 p& C: |
% z U! d/ M$ }+ Xset honest-service 0
/ r) k3 ]9 ~% t5 A/ F% e) }7 B( d3 F, O9 E p
set unhonest-service 0 h! H8 _! Q, k5 L
1 b8 _3 h3 }; D$ t: r$ M& @set oscillation 07 j, {. n! }2 K3 @7 _
; z; a9 @& I" \5 M/ a
set rand-dynamic 0' ^3 c' Z! O+ q w7 P! |
end
" ?/ E; A, t4 M
% u t/ a k1 t8 ]to setup-turtles 9 @, y+ w, y' W( z) t C4 Q
set shape "person"
8 y" k; {! d$ G, r* \setxy random-xcor random-ycor
2 E" v4 @& G* ~2 |& j+ J0 V' T! }set trade-record-one []. X- _7 l( D$ o; |
# q1 r: l9 }; B+ r7 @ O
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 {/ G0 o& D- N! r7 C" a
% P, F8 y. [ x( jset trade-record-current []
0 t M! B+ C0 O6 a$ Y( A @: s# O% wset credibility-receive []2 e, r$ c: N% U) E3 p p0 M# \/ V
set local-reputation 0.5
( [' C( `/ g. K8 b# v- D# S9 Wset neighbor-total 0
1 c `4 _7 r8 Y3 o% vset trade-times-total 0* ?/ _8 |/ [5 H2 r* I
set trade-money-total 0
4 ~* G$ L+ `2 x- P, z# Tset customer nobody
$ J0 [' s2 e9 q) u) Sset credibility-all n-values people [creat-credibility]
+ m! M+ ~7 [+ _0 f, c P* vset credibility n-values people [-1]
$ C. v$ ]# W5 o. j7 T' Y) Zget-color
/ X( Q" Z5 Z, G }/ z" l2 |( e" d7 L m% _$ V0 v
end
4 q: n" w3 x) F9 g, H ]. c( A* {; f& ]
to-report creat-credibility' S4 X2 J0 g2 H4 i* p
report n-values people [0.5]
' a7 s/ j9 S# ~' b1 r' f/ }end
) `& o3 w6 I0 N, R9 S" d) [+ Q5 Q
to setup-plots: M, o- O; Z" T$ ~
% g0 t. I1 B, \1 R0 N
set xmax 30. }- M' z W6 h) |, V1 g$ f' S$ z! [! `
+ a, ~4 C3 l, l, h
set ymax 1.0
4 _' f) j( b+ w/ |6 l( i. q6 J! o3 d" n2 D% j( [
clear-all-plots
' n) e# o% K8 a% F
* G: b) C( ?) E+ X7 ?5 C* dsetup-plot1
: x! x/ \4 L0 Y' K: W+ B1 E9 V9 D0 i3 g: w9 J+ Z6 t+ b
setup-plot2+ ~/ t3 c& F7 j: q( E B
9 D0 f. |: L4 b" t# ?' Y- lsetup-plot3
$ W' E# l7 W# X. `# f# ]end
_: S2 ~8 \+ l6 e' G) R. S' x0 Y$ X3 c, N
;;run time procedures
f3 u4 R3 [2 j6 R- e2 }) ~
. f& B4 t [" T) Z& Yto go
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3 O* y2 n. m8 W. t+ W% }3 Pask turtles [do-business]! Y) ]& d( \* P6 t' o; W
end: v( X0 m2 S3 q2 h- U4 Z
4 I% q7 i0 ~9 q- A& sto do-business
: f: H9 E: Q( m% c/ ?! b" D* u0 [; o/ ~4 Z' Q7 H* U
{$ m1 D- W) ?5 {4 S4 a$ C
rt random 360! e3 ^, E5 N$ M% Q) Q' x
. N+ Y6 N: |2 S$ C+ F2 Q
fd 11 o; j1 G: Y: y0 ]2 I7 U' b4 N2 ]
3 [( g. o7 X5 f6 V f* W$ Qifelse(other turtles-here != nobody)[
( {" x8 Z, t0 S6 u0 Z$ w! j/ b* Y8 C7 g9 }& F
set customer one-of other turtles-here
) d8 i) P' Y2 f# y! L
: s( r6 X0 [; Y% m8 B5 F, h;; set [customer] of customer myself
; x R0 p4 n: F/ q. a& m* D) Q; T: @. ~ O3 P' C
set [trade-record-one] of self item (([who] of customer) - 1)2 k R v9 ~. p9 y& e% G4 g
[trade-record-all]of self
x& w2 ~0 F* ?4 b7 N! W, t8 S;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 Q4 M7 ?. J- }) K' j* l5 A {$ X* R6 _
set [trade-record-one] of customer item (([who] of self) - 1)
7 B9 ^/ E I1 _5 q; ][trade-record-all]of customer
/ S$ a4 _# X- c
) m+ E0 f' r7 j; S- x* k. Gset [trade-record-one-len] of self length [trade-record-one] of self0 L8 q5 o# A* C7 w" {- n
2 b7 ^2 C8 _6 cset trade-record-current( list (timer) (random money-upper-limit))
0 I2 Y9 t# J- Q! x& x) R$ X7 ~( I9 c! m+ i
ask self [do-trust]
( T2 i) R8 q Q/ m;;先求i对j的信任度3 T: {* Y! V) f* z" M
, o1 m7 k1 @4 Y5 u X, o9 cif ([trust-ok] of self). }/ a6 B9 M" W
;;根据i对j的信任度来决定是否与j进行交易[* j9 l; G6 c* H" I0 X" q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ Z9 M: t/ Y9 N& u( S2 J5 @; R
3 U7 s! `* i5 O
[
6 K I1 d- N. v- E* A, ~2 }
" F( Y$ ], g, U- W1 ddo-trade
* p' @" `' ?5 d" _( M+ \& L
1 R b; t U& N0 u0 Pupdate-credibility-ijl' Q6 ]% Q' l% n$ D7 D
7 {0 ?" q! k$ j' c- q+ R. cupdate-credibility-list6 B( ?' T3 g8 n7 a p& X1 ~
: v# O/ a; g+ _, y9 V: ~7 h0 {* Z Y, v# C; N4 L/ @9 ^
update-global-reputation-list
. `4 w; ?& A0 F" n/ V7 L
2 v0 [( M2 i9 E1 Fpoll-class
$ S+ u8 a* z, ^7 o5 ?# M+ M. v: G7 u/ c8 l
get-color
* I& P# @. |( {/ ]) g7 \) O8 C4 d/ {2 S5 H9 K- T) D
]]
4 X' @, I6 e5 t, ~
3 ?# v( k% L* j" _2 x: G* I6 @;;如果所得的信任度满足条件,则进行交易
: o' B/ H8 O* ^4 ~
9 `8 b0 u, w6 \5 w- x* T' X0 y[% K( b' L5 l L% h4 j" _
8 }6 }) y5 S( f# |9 g7 Y
rt random 3604 l& m* d j. B" ?* k* x P
- `6 j1 ^( b9 t2 E( F( Yfd 1
( h9 u; @: Z1 B
8 S, F: Q) J. T5 c1 O]
% ?9 i) u! L: D) y. m, T" y* V" m7 ^+ V6 @9 K- E
end
1 R! m, B h6 g+ M4 z p( c6 E+ l* q" A4 ]+ c8 P
to do-trust
4 }* J: I, V. q. m; `( nset trust-ok False
# Y6 s2 J( r+ A* l5 w) r D( b
% n6 W6 B0 d. }4 q# B. L$ y. J! A M
let max-trade-times 01 `- l5 y) Z/ ?, ?% w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] ^) i. L* x t U+ b
let max-trade-money 08 B9 L' o' I2 }4 _) ~4 ?# F5 F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] r0 g4 o: j; U6 {; V# l9 o
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% B9 B# }& C; d6 ^3 {$ B, l. t; [8 U; a: m
. t1 T5 s# ~+ s/ S6 R( f9 D5 l
get-global-proportion, ]2 W1 f" V6 W: t h$ v: K
let trust-value
. u3 `" K. U6 y/ Rlocal-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) l' R; r6 ~1 S( k V, `3 }if(trust-value > trade-trust-value)
+ P$ E$ v! `& w7 N1 W- q[set trust-ok true]
$ \8 v7 j# q, c; A4 mend
. ^0 d" X* r; j4 Q) E. _3 x
2 [& i6 `- e2 c" Z! ^to get-global-proportion
! t. F' S, i; O0 ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- x+ k D5 u% ]5 e
[set global-proportion 0]
# u6 U0 U0 p. ~8 V' ][let i 0) C* @/ M: t% b7 K6 R Y& a
let sum-money 03 b2 ]( f. w; r: _ H
while[ i < people]
2 M z" ~1 ~; l: ^' R& R( a/ R) s[/ J6 a1 k5 Z% V6 m7 `& ]9 C
if( length (item i
6 K* s/ U7 K) j0 y' b6 \+ J[trade-record-all] of customer) > 3 )" p: c) F( {7 b/ P) H
[' _; E1 O% Y; N6 }# i: T% U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' |- ]9 ?1 ]4 G. e# b' b
]* l; ?4 Z4 U! O& ^1 V5 T' q/ B
]4 C' [# L \: U n/ r, @8 W' b
let j 02 B0 M$ v$ O# p C
let note 0
, r, r" \- {9 @! xwhile[ j < people]/ S; C7 {$ a. F! C
[' L; @0 O$ P* C+ | l. ]
if( length (item i+ L `) {4 D" f4 N
[trade-record-all] of customer) > 3 ), ^- I1 k& k# i& s# `+ X+ Q* F% e
[
" {' [. k* {1 r8 L7 y* v/ t8 Rifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 |: J4 f7 g9 ~9 f
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: s! W; M' Y+ F4 \( m7 `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 G& ? K) r- Z. c$ k]
2 }- ]( u. D1 T]
& F6 Z: ^0 `& }( J3 I' S/ wset global-proportion note
% Z( j5 t5 J% L6 T# U]: V7 u) ^# s m; K- t# R, k! _
end
- f) c* i5 Y& V6 p0 b. o
. M9 ~) s4 V( U# ^to do-trade
. m. y7 Q' v, J$ l1 ?& i;;这个过程实际上是给双方作出评价的过程
# z) N% y) U4 E3 B( Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; H4 r( O3 _9 Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 {! C! ~' x2 B& P* u6 J P& wset trade-record-current lput(timer) trade-record-current, ]$ o! H# y8 k& w
;;评价时间
/ b( L* _& H" oask myself [
2 ^$ N2 M7 p2 q4 u' X# qupdate-local-reputation5 [1 N1 m7 ^3 E( w; E# M
set trade-record-current lput([local-reputation] of myself) trade-record-current
& u* Q9 m. Z4 R: o0 N]
8 v( A/ L7 H8 t' Uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! D& u O: H, B9 ?0 d& U, b;;将此次交易的记录加入到trade-record-one中
* U9 E! \1 T8 p* i3 j: J" tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( Z% h8 k0 e% X. ?4 L. p2 X
let note (item 2 trade-record-current ): h9 ~- _: l* u1 g( Q _3 B
set trade-record-current; R7 k( |$ g' W
(replace-item 2 trade-record-current (item 3 trade-record-current))& b3 a+ W. f+ @1 n% T& E7 N3 v
set trade-record-current+ `! v) y4 A ?4 V# H
(replace-item 3 trade-record-current note)1 i: q! E( t. R- C$ A; n
+ |0 z3 f1 M' ~4 O% _
9 F" x. C& Y8 `5 ]5 e) Jask customer [
' V) y0 t0 n1 z4 K1 v. X @" \update-local-reputation0 j1 W# j9 U8 w) a
set trade-record-current) M$ P- }$ C+ f; ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) t1 k& c. Y0 r) V
]
5 `# W6 B4 W2 B5 }( ?& [% W+ `! R* t( Q+ n( X
2 m: x; u d. pset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- }4 `2 A( h1 ^; x
1 b+ o4 V9 z/ ~7 qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% Y4 D. A7 p2 _5 X6 y;;将此次交易的记录加入到customer的trade-record-all中; A) o) s9 u1 f- A W J& P3 F. z3 F
end
- v0 ]0 v* ?/ y( u
, S* e5 \+ l* n4 I6 F5 v6 }; @+ Qto update-local-reputation% K3 {0 }/ q) R% w1 |
set [trade-record-one-len] of myself length [trade-record-one] of myself3 S1 X2 ^; @/ K* y" R1 |. C8 ` ^
' f# }0 G: J1 M( Q0 `
* S( C. a$ ` G2 O;;if [trade-record-one-len] of myself > 3
7 A$ a3 Q; m8 s9 @ Gupdate-neighbor-total& a- ^7 e* A& d1 d5 w. Y @" S
;;更新邻居节点的数目,在此进行4 I+ I) L5 W/ P; E$ }$ Z
let i 3
0 ]. }* L# Q# c7 C1 [) flet sum-time 0
' M$ V0 \" i$ X4 ^7 P* hwhile[i < [trade-record-one-len] of myself]" i1 b* O; `4 F# i" H
[
$ ^7 f6 ~ Y3 e/ \$ t+ rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 w1 h) x( _* a# K& [
set i. x4 e Q7 S8 R" k
( i + 1)5 l- h& [: t9 L" Y( i. I- ]
]+ C- r, E, y) L5 D% B
let j 3
3 r; ]$ f4 B1 z5 olet sum-money 06 i; O, U$ x# D' M! c6 @) ?: q
while[j < [trade-record-one-len] of myself]2 X5 [ S5 u8 \
[
* d$ h/ h+ H% G$ N# ^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)
9 H9 L s, k( Bset j
0 _# M( I! W* @2 ~& ^. q' ]( j + 1)6 a8 p# w5 l2 ^7 R
]
& V: j5 s4 y3 f1 olet k 3
, o5 u4 U8 W4 Plet power 0
. O5 e! d ]' r! |0 Alet local 0
! I. L! u! G5 ^6 h" gwhile [k <[trade-record-one-len] of myself]- C7 ~9 M! ?- ^$ ?5 w, @% t
[0 F' b6 C. X" K$ u# 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)
( x+ o. Y( A% dset k (k + 1)
* K# g$ {! m8 e) ^; M. u1 r]
5 x" N9 j4 h4 Z* rset [local-reputation] of myself (local)% a5 D- j( k" e. [% r# @- d
end/ f, j) X% g7 E; ^( D
' V# _7 M$ X N+ m
to update-neighbor-total1 S. p E m4 a# h" N
# I' O5 A1 b0 T2 dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: K2 X6 Y4 `8 Z) u$ d6 |8 _$ [% D- b
/ @0 \' K y/ D2 q
0 _* U: ]2 K$ [1 }" G# j& iend
. T/ @/ g- b) t! U
p% z) h( V$ {% bto update-credibility-ijl & k; C% X w* P* `' t3 `
+ P" ?$ _- t+ J8 W* Y;;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。
# {0 s! `, y7 K, `7 H Q9 j5 i! `let l 0
, f8 R5 B! [1 c' Q" ]# Pwhile[ l < people ]' X; W- k5 K; L2 s5 o9 v( k) 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+ B6 z% H6 y" v, K/ p7 r7 N1 `1 @
[1 z4 i# J K) {, y& ? n
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 s2 \/ X) T. |' h6 {: x
if (trade-record-one-j-l-len > 3)7 G5 ~) D3 c9 p# [& E/ ]
[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-one4 n+ @( e/ X# ?- l9 N" I# f3 N0 C, b
let i 3! U! a$ P3 d2 M- F
let sum-time 0
& C2 h% l2 x* B' a1 \2 P* g* g; u8 Ywhile[i < trade-record-one-len]
1 \5 Y g! D9 j' ~) E[8 P M2 [0 n. a; K* L1 x
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 O" }6 k: T+ S, M6 P6 }3 d
set i$ D* A1 f0 @( Q) [) n% x
( i + 1)6 Z) i% ^+ ?. R: R- n1 V6 [. o
]
$ p) a$ \- j; o& y+ nlet credibility-i-j-l 0
' ^# ]6 N7 V1 v2 _2 \) j;;i评价(j对jl的评价)2 B' r& T) m7 P, Z0 i7 r
let j 3( a7 s& h. y, e, \2 F
let k 4
$ _5 E& m5 G6 |; _while[j < trade-record-one-len]1 p, J% s' U- z7 D& m3 y* E" C
[' n5 {8 z' F0 Z
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+ X T( ~: [( x, P7 G, r( M
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)
* k, c' @- X+ M- x7 ^% bset j6 M1 n5 c' }' G+ |' M+ f
( j + 1)
1 c. `; b5 M5 E Z# Q8 Z/ a]
! i0 A/ v. _2 J- Y5 I) h2 Xset [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. Q. |0 x7 q9 B: e- n7 i! e0 k# x" z" j+ c# e" `2 |7 y
+ o; Y9 j2 v/ v! c6 ]/ G$ X( Zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 m- a1 G) f0 [9 g) J4 d& ?
;;及时更新i对l的评价质量的评价
* b4 _" ?, _+ nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 S: U7 Z2 \5 \: x1 m
set l (l + 1)
2 Y( \$ q9 O8 O4 H5 O], _' d2 d& P3 Q9 C, l6 Z9 E, g
end9 w, i! N, n3 }4 [4 m
$ e9 i' E( `1 D& Sto update-credibility-list4 F" R/ }' | W
let i 01 e6 n! _7 h/ F
while[i < people]
& |3 y5 i4 f) }( }2 _4 ~8 f$ y/ ^[
* p$ X$ {6 A* s- nlet j 0
, Y6 X& Z$ H2 b0 N3 nlet note 0& T) }- O7 Z5 K0 X
let k 04 z6 H1 ], r5 ?
;;计作出过评价的邻居节点的数目
' M) B5 S R- y9 y. {while[j < people]# \' w \( b, E1 `" c7 a7 [
[
2 ~" V; D; J( b C2 I4 j: tif (item j( [credibility] of turtle (i + 1)) != -1)
# @) N2 i* o. y% ]& x+ V" T F;;判断是否给本turtle的评价质量做出过评价的节点
( P1 U i0 y& ]: Q[set note (note + item j ([credibility]of turtle (i + 1)))+ v, ?/ d; u" c- @) o
;;*(exp (-(people - 2)))/(people - 2))]4 o. M: Y6 u& ~/ e2 d
set k (k + 1)9 Q& b2 Y( F7 K8 N) S
]* W$ ]7 ?- e/ s/ B
set j (j + 1), n: H* A3 i' w, b. u1 N0 [
]: x+ z/ C+ G2 J: V9 l" b, N+ ?( Y/ ^
set note (note *(exp (- (1 / k)))/ k)4 j: D4 p# }2 o% D) W0 ?
set credibility-list (replace-item i credibility-list note)
5 u$ s3 w- \; h5 e5 jset i (i + 1)
3 ^# G( C d D/ S ?1 G1 h) s6 y5 y) r]0 v3 b# o d* R9 r7 z
end
; [; ?# A, a. I4 O
4 C5 s T$ I! P. |to update-global-reputation-list
4 Q! R: j: K" w: E5 q# O7 v6 D1 ]let j 0
" T2 _! C5 k0 e2 \$ \. xwhile[j < people]
) ?4 s5 ^" {% R3 Z1 H% t[/ ]: A2 W4 j, ?0 d: D# {$ v
let new 0
: Z4 G0 [# V. O& p* l2 \$ x;;暂存新的一个全局声誉
+ q# ?! L; Y- x+ j/ Elet i 0
) U, o' n0 s; ~let sum-money 0
9 ]9 m2 K( r. c" R, x1 Wlet credibility-money 0
5 i7 W" T, |8 f! i5 v; ywhile [i < people]
, m2 A0 L2 N( z- J. i9 h4 a( o) y[8 z" z, k7 `, P4 f) k5 c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 {( |* C; D5 J$ o3 B, k3 A
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ |% I7 E- O3 e% o! q: W+ `set i (i + 1)( i- ?* B6 T% C+ c
]1 E! \$ K* P+ U' S6 w q$ m
let k 0, w5 E" { {# [$ k5 t
let new1 0
~7 A: L% h5 R8 e7 ewhile [k < people] J. w( A* n6 B, w# u4 S$ c
[& ?# s6 Y( J* V! q2 y
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)
( E( Y* @: Q. p- z: ]( \! `set k (k + 1)3 ^5 R7 Y! r: X, J, k; l
]
7 C8 [: i* P* _0 I4 T4 zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, T( \( u8 _1 \ V) K# ?: t4 Pset global-reputation-list (replace-item j global-reputation-list new)3 {; E# t; W: a3 X( b0 }! n
set j (j + 1)' e: _4 B! y) F& V0 b* ^' S
]
. @) J* c! @; z% Z, K% S' W$ Cend
+ I0 Y& t" r6 U: m1 z, z2 |7 ^1 `" H& Y2 Y
/ O! t2 |7 l, V8 q+ p8 ^5 {' ]
% D1 l R7 u$ k( m7 j. T% Xto get-color
3 K j2 f* `# w5 i9 q7 e" v8 g0 W$ d: t
set color blue
" U9 R7 K; ]% z% b, ]end3 W! r, Y2 k5 K
$ K! }) m' t. X; X8 Jto poll-class
2 E- i) p* d' M1 u5 g5 ^4 X3 Iend& n6 ?8 b; P+ [- p
4 |7 q+ A0 C0 I" Q) c( f1 N- `! pto setup-plot14 q' Z1 N* Z% s
" _3 L+ @2 K G) d6 H" Bset-current-plot "Trends-of-Local-reputation"
9 }4 i& \8 A. G k2 \1 z: Y9 \; i7 q6 A6 F
set-plot-x-range 0 xmax
. p: W* Z& m$ D8 A- g
O+ F! n7 s( n) l. Wset-plot-y-range 0.0 ymax) J ^4 k$ e; j- H9 C% R
end1 B. K3 A3 p Z3 N
2 ^# ] v( ]7 [/ k9 p5 Z1 `% I( l; R7 b4 Y# Y
to setup-plot2
( O: S: i+ \ B" o a/ j/ @
7 }5 G/ u4 o5 S7 s3 c; Gset-current-plot "Trends-of-global-reputation": j' u; w$ o2 O4 b0 m" o1 y
8 [0 g& g9 x, L: zset-plot-x-range 0 xmax
! t0 l7 b! z0 y# {! { d9 i/ I0 z# q+ y# V2 _. |: J+ S! E, U
set-plot-y-range 0.0 ymax
! I$ G$ a; B# q/ gend
9 v! K# ~* I8 {& O3 z+ f. Z
6 E7 q, F; @/ tto setup-plot3
# b6 X9 r6 w4 f! i2 t3 d; {* p: |- S8 x4 X- Y9 A
set-current-plot "Trends-of-credibility"
( b2 z) V, F1 n' f
% w3 w- w+ V& P" ]set-plot-x-range 0 xmax2 y3 c2 x0 ~' u$ L; l: y) @
! F2 i0 R7 D3 ~+ {1 g8 H/ ~; k. ?6 T \set-plot-y-range 0.0 ymax
4 j+ t$ B5 Q% Z" P3 c7 ~end) Z; |# X+ L; D# D7 k Q) W4 Z9 S' `
, z8 J) P- ]' w. g' [: v& eto do-plots" _- S- x/ }( C0 _: m3 L
set-current-plot "Trends-of-Local-reputation". Q S8 i! j2 X/ m/ i1 \
set-current-plot-pen "Honest service"
' y3 R4 D! N! ?end
# [5 B% j8 ~7 Q; {2 A( @3 v6 E8 E) L5 s/ n
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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