|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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) U+ i! d) Z& u' e
globals[
' f: }0 d* {6 R/ \xmax
. Q1 ^ t! w9 bymax
& p) @& Z$ K0 i0 \1 @, I/ }global-reputation-list
, d0 x' q- s* n% j* J# C2 q- |! X4 R, [1 L! S( U
;;每一个turtle的全局声誉都存在此LIST中
6 y; ]2 `; e& c" ?! P% A& ucredibility-list
$ A3 z2 G& D( e5 q;;每一个turtle的评价可信度7 L% j) K) N! M8 {: G& l) t9 v5 g
honest-service' V) @3 |# A2 |+ D" T1 B- \3 K
unhonest-service
( ]' O1 V0 K3 {. B$ Roscillation3 l+ G% O: U, B) q: ^0 Y
rand-dynamic
" G; ]$ X& s: C+ S* V# H]) y/ H0 _$ c! {
) R& p% z4 H7 s7 L! d/ X' o
turtles-own[
- |1 h6 x) L+ E' |8 C: w6 A% _2 @trade-record-all
% X( M! _0 P) R1 x% Q' P;;a list of lists,由trade-record-one组成
* W* u9 z, z9 A5 F* rtrade-record-one8 m' G2 T3 p1 f7 b0 b3 {) Z- W |: B
;;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 G( }& r% j% }* M( p2 x& U* H* {$ s* \
;;[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]]
2 E _: a; @$ ^" E, v* ptrade-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]
0 n# ^0 H5 u4 u7 Y8 d2 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
% h1 R0 l L9 k. Aneighbor-total
0 j: v: g8 |% c' _;;记录该turtle的邻居节点的数目
# F1 |% O, m$ v2 ~" ~" |! Jtrade-time0 ~/ F' R6 F2 R. ?
;;当前发生交易的turtle的交易时间
- r. p' N# [8 t# p/ ]* Uappraise-give
+ U4 t$ b7 P3 e7 G;;当前发生交易时给出的评价
6 V' b& K Q) y0 h5 [7 m* Z% yappraise-receive+ d# q |' {0 S
;;当前发生交易时收到的评价
0 V( ^9 C, J" E( o5 dappraise-time
! `2 D% b4 k \$ @* J- T Q+ @;;当前发生交易时的评价时间
9 Y: C- l: c# K. h1 I8 Plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
& h0 m- w# `# e0 itrade-times-total
! C( ?% a' M% N;;与当前turtle的交易总次数
* M) Q1 b+ q' T; \trade-money-total* q: \( U: K t# y6 D0 r( y5 _
;;与当前turtle的交易总金额
& x# e# x% f3 V1 B+ t/ d3 Qlocal-reputation5 D& s" @+ o4 A
global-reputation; v% @; m: R# r
credibility/ ?# {6 n! g$ f5 r8 f- I# h
;;评价可信度,每次交易后都需要更新
+ t% f2 [) F4 vcredibility-all9 ]- {/ e9 o! w7 L' X2 P
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据7 v5 ?3 R: G+ T& W, P' J, D1 g% H( I
# b2 C' G3 W$ T1 }7 ?) U% J; j;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.58 z/ ~/ d g1 A* ?/ ^
credibility-one
A4 p- q; h5 Q, i/ K7 k;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
. F3 c9 [* e! i1 Z0 T' dglobal-proportion1 o! B# b1 x' D- c% Y
customer
" x3 ]6 F% e; mcustomer-no
7 u7 m l* d6 {- Btrust-ok: R! T Y# m" X( f/ l
trade-record-one-len;;trade-record-one的长度
# c. X8 g# y$ L$ y]* T1 J9 ]% F" t; g K# K5 B; k' |
; ?3 \' d) l& ~- C* V% _! x
;;setup procedure3 z+ N. h7 Y) C: o/ H) E' x
# b7 Y2 J5 z- K: Z" r, q+ O2 o- kto setup+ e2 |- z* w9 _3 Y5 B, y' q
6 H1 Q8 B: _* n1 j) k, cca
# b5 f# Z' _/ n* G, J+ M$ t8 ^3 h; T
5 S8 g, M& o5 M$ b# v) H/ iinitialize-settings q8 \) X6 B; ~. B2 X/ `( ~1 m$ o
j* P- k Z) O! _0 _1 v
crt people [setup-turtles]# h \* M% J L2 |
7 W% K. d- [& n, {4 e
reset-timer
7 P7 q6 `& y s# ^" @+ a8 i
4 t0 ?% p/ f$ epoll-class8 J2 j9 {4 [' y
8 M' Q1 m' J) P; K. o1 Esetup-plots$ b' G+ k5 D# T; T7 Q
, U* v- t1 L! L& b2 d1 y
do-plots# Q1 b& u1 z' }0 y$ L
end
" N' J; c3 e- u; ~* B, P* z
6 x1 Z' E' v. K& L/ h& sto initialize-settings
: y( M3 `6 x; t5 \) K3 S# _, m# }( G+ B% R7 }1 c9 ^5 T/ S
set global-reputation-list []
4 [& J/ C" y/ b4 K3 l4 h' ^
9 ^- [4 |# M f* u1 G8 ~set credibility-list n-values people [0.5]9 E+ g% T2 E" O7 W: R9 l
2 t+ a$ U7 \' l6 u2 g( k+ \set honest-service 0& s" H& N/ _' I+ I. g8 R
, A; z- h) u7 ?% s* K# Uset unhonest-service 0, j2 c$ V2 w7 f6 s5 ^6 T2 E3 v
3 c3 y! S! |* O: j! U9 h7 C9 ?set oscillation 0; \2 ?; E9 v1 i5 @1 J
* ^$ x* `8 w5 _* p) D1 H$ y1 e+ P: m, l
set rand-dynamic 0- }1 S9 Z/ |* Q* y y
end
5 e2 C4 I n4 b8 A) l' K+ H+ g& S! |9 K @) `- ~+ L W
to setup-turtles 5 i! v0 [* m) W
set shape "person"9 m8 {$ | j* L8 o j8 O
setxy random-xcor random-ycor* L: D: {. B/ P2 G) _
set trade-record-one []6 o+ g8 U9 p0 q& i- l
: ^/ q, M* @! y" j9 C+ x+ eset trade-record-all n-values people [(list (? + 1) 0 0)] 6 [+ x8 t) P% X
/ `6 W, o3 ?3 ?! j4 V- [( i3 Hset trade-record-current []3 u4 }6 q0 j+ M
set credibility-receive []
9 k! W" b# k! |5 zset local-reputation 0.5( Z* H, J. I0 o5 Y) m
set neighbor-total 07 L6 y2 p5 e( o1 D0 o2 u5 ~
set trade-times-total 0$ x5 h" S5 m( Z& J7 b) o
set trade-money-total 0) H) n! Q( @, S8 |, ? B/ V
set customer nobody
a1 f9 L* Y1 k( Z; U6 Aset credibility-all n-values people [creat-credibility]* ]* ]) `# _6 q& L# M
set credibility n-values people [-1]
2 y8 b* H5 K8 t0 ]7 S+ ]+ E) Aget-color
2 u+ ~" ^. N; }$ F# c3 |4 k& y; Z( ?3 Y* c9 j
end
f4 z6 p% i7 p9 g/ ]! b0 Q2 S7 e7 O
to-report creat-credibility
. j2 r% }& R3 N& K0 {report n-values people [0.5]
3 V j% [7 |5 u4 o! J$ k; `end
& |- X: v( {' ?
+ K1 O7 b7 e! p( ]( K0 `to setup-plots
) @" M/ G3 A7 J- ]8 h4 w; m% d+ U# F) `( z2 ?) O# x0 Q* e g
set xmax 30
( @$ \, P$ W7 I0 E/ K" B, u% @% h
% L. n. w1 O Q# \* Lset ymax 1.0
4 C8 q% l5 _" ]9 ~
( x2 {' e% h% c- l; U C& Yclear-all-plots
, ]+ X' P/ W F: k& I. i! M
- H0 C% O/ a/ g) Q5 L. isetup-plot1
9 x/ q9 ~0 \5 t3 s
7 ]8 V, {6 \6 p" i, msetup-plot2 u) f( E/ K& }) t
% ]3 K# P6 h# u* x1 K3 c; e; m) ssetup-plot30 u: W( V% _4 W6 c. U0 z8 h' }1 k
end
5 a2 z# C/ o3 {# K. Y# L$ R3 \) k: v- u& H; X4 n5 J- b ~$ {
;;run time procedures8 v$ ~2 J6 {/ L7 r8 F
9 L; B& g' w6 |4 ?1 K! c; v" \
to go" U6 Q. `$ ?+ ]4 T
0 a' O4 Q. d0 l Z( R# s: R9 r
ask turtles [do-business]
7 R8 C) ]( P& Fend
3 K7 o$ z6 ~% b( W3 X: j
/ d: y1 n; z/ Qto do-business
p: g7 H2 I( k- r
$ N' \- F' w& H3 p+ B% F
: k1 b. ?2 Y5 u- a' v: i1 Yrt random 360
# u; s9 i! ?4 d0 B
# f! c- ^: n$ O2 Y5 M. i- V8 |fd 1. {! k5 h& g7 Z+ N( t# G
* v B7 L3 O- u. {, s% H6 n
ifelse(other turtles-here != nobody)[
1 r6 `; n, Z7 [* ?$ l8 ]' M$ m0 F4 ?
% z& l1 y8 O( ?6 s$ bset customer one-of other turtles-here
$ a# Y8 J" F/ n% Z8 h
1 K2 c t9 i: n5 @7 H3 Q4 \2 p3 ~;; set [customer] of customer myself& `9 x& [; k7 q" t3 R' M: V
1 q) @. A& F; h4 D1 r, U7 cset [trade-record-one] of self item (([who] of customer) - 1) f* ~% ~( F( T* }! H* r4 L
[trade-record-all]of self( ?0 R; w# K; g4 H
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( I9 \) H: U/ G2 n0 b1 G! F' M/ ~5 N$ f; i+ O3 w
set [trade-record-one] of customer item (([who] of self) - 1) A$ g6 G+ n6 C6 S1 a3 A
[trade-record-all]of customer
" }/ z) n! A: T
/ t, K3 X( k" z1 s. _set [trade-record-one-len] of self length [trade-record-one] of self
( z) v# l3 h* e6 L2 m8 w
5 |+ i* l+ ]# D2 |5 Aset trade-record-current( list (timer) (random money-upper-limit))9 j# P& Q* M0 b6 Z/ ?6 z% j) N
1 _8 V6 G x& @( h/ z- z" n2 F+ p# G
ask self [do-trust]# a" j7 t- L( a1 x! n2 g
;;先求i对j的信任度+ Q, X6 d" y, i- @) U
2 l6 k9 V; o: j- E- Q" @
if ([trust-ok] of self)% F: ]2 \$ G; z( {% {( O+ c9 F
;;根据i对j的信任度来决定是否与j进行交易[! ^/ O V; K8 d# w
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ E' O& V5 z6 I- T3 Q$ y( F5 l2 H9 u' Y1 F
[
7 O' ]+ E; `+ I& t
" i' h" m, n0 M6 }do-trade
" Q7 K. {+ x6 y# [! I7 w/ ]
" X" X8 d" a0 B% X, x( @: qupdate-credibility-ijl D; p0 p5 o7 ~! j' C/ S
3 W/ u1 H) ~. j
update-credibility-list
( ~* v1 q5 K5 y4 u; n, e _4 r8 a
5 |3 i! S& \' P, m2 G- Tupdate-global-reputation-list
|9 X1 C( O: _6 }" l/ |
9 i1 _* ?* t$ \poll-class* @; a8 d4 Q8 C) Y
# b, e( B( Y% o* z0 x. Fget-color( h9 C, q+ h$ p4 p
. Y2 |: A$ j8 ]+ R
]]- [0 K+ g; B! M$ b$ M8 R
4 L" P& E6 r' }+ d;;如果所得的信任度满足条件,则进行交易
& E t" Y( s1 Z6 d7 Y, B3 h. b' h" w1 I- {
[
% O' N; b* i- k% ~4 e
/ h- p+ q/ S3 j' Ert random 360
8 p. |1 B8 z( W5 ~0 L$ s& \" q& ~2 o1 }$ U5 o& L8 F0 x& I$ S3 K
fd 1
. j) r+ f, E! X9 ^0 Q' k; |8 d- O8 F
]
6 P, W1 Y; H/ s) y1 v% g* X' d) j6 h
end. q+ _ y0 d+ ^4 `. f
) r0 V4 c9 }8 R+ g' H$ d. Cto do-trust & Z# X) _# _7 y) ^. b
set trust-ok False
2 }$ Q# Z+ \' L5 L% a7 q) ]) I) Y+ s
+ s Y6 t& k% e; G: O& Y# l2 c3 w7 b
let max-trade-times 0
1 U- s. S, A$ h7 _foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 W6 d/ e2 |* ?$ s, ^let max-trade-money 01 L9 e( r! U' \# k8 ~3 [
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], ~" N8 k! _# i7 E) A$ T
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" K% Y( X& N* a w
# [/ y! a7 _% q3 O8 M' O
+ D7 o6 a" g6 c" x9 z- X% v, Vget-global-proportion
0 t6 h6 ~5 o% q3 u/ Wlet trust-value
: C" s+ l) i& j) ?% blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
w a! n9 w! A P; A1 y! [if(trust-value > trade-trust-value)
3 S! ~: S+ w! u[set trust-ok true]0 M/ T" I& o* I2 }; g- g
end
- o* e8 V; a) n' L- M
( c8 C$ \/ }: s7 G: J# e6 e, Yto get-global-proportion
9 V8 f$ O/ e+ L8 b" t' a: Vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) J! {" \+ a& j[set global-proportion 0] W3 Q9 w3 ~4 Y) G- _0 x
[let i 0
$ G. q" U- l2 a4 B; mlet sum-money 0
% X9 B. v) N: s# w4 Y1 Swhile[ i < people]
- {5 W: [$ }3 r7 l# i[9 S/ p7 a# u* V5 b* m$ R. M
if( length (item i9 L3 \: E( a: l" m" n" l5 V$ z+ O7 K
[trade-record-all] of customer) > 3 )% F9 d3 B2 o$ Y0 j' D
[
2 w5 y! S/ f& O; |) lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' s+ W8 e9 [* k* }]0 @, x9 ~( q! T1 ?$ U) @
]
# `9 x7 U0 a2 g" Ulet j 0
6 K. F; O# E/ r; C: ~; P5 vlet note 0( X8 V8 J* r' G; `
while[ j < people]
7 |" H( n7 V% ^8 k[
$ {: d* I# V1 ]) qif( length (item i+ f5 e4 p% N" O
[trade-record-all] of customer) > 3 )
i! H: @; W1 B, q& z, H3 N[/ V# Q7 W9 Z7 U: H: R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); c: h1 L. V/ \) ]( h
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- ]7 a A2 r# o" [7 h1 Y" K- N5 t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% {1 X$ k8 Y X$ H
]- M" @4 a9 C* y7 E' ^- ~, m+ Y- g0 h
]2 i3 o' N( m( P% ?
set global-proportion note5 @- M( A" }/ o) m
]
! B! v6 y/ v5 H1 W# G2 @0 @end7 r6 t, K& R5 k' c7 m
1 `7 c0 w; U; V. X1 r6 n
to do-trade
$ x+ E8 I" Z; c;;这个过程实际上是给双方作出评价的过程6 P5 z- }# n. g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( A) T1 {/ J4 J6 B x7 G$ k$ n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 w# o. ]6 F1 i& X3 f1 y+ c5 Lset trade-record-current lput(timer) trade-record-current' \5 d- [* B9 q
;;评价时间+ y; ^1 A* d! s* R- b9 A
ask myself [
b0 q) w7 f; w" Z: [, A4 s/ X8 oupdate-local-reputation
7 g0 a3 c2 k; w9 K6 R5 ~1 gset trade-record-current lput([local-reputation] of myself) trade-record-current. m1 o5 j3 D z& \- n
]
) Z2 ]; X& L8 m% H; gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. ^( q. S7 u' d3 {3 l( w;;将此次交易的记录加入到trade-record-one中
2 ^9 d5 {* f; V6 J* |8 l: P0 _set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" c- _5 }6 u g; l9 llet note (item 2 trade-record-current )8 l3 z* q; B% { f1 T, h
set trade-record-current
* U+ ^: M* g( g(replace-item 2 trade-record-current (item 3 trade-record-current))
, W- Y0 A P. {( ], Oset trade-record-current
5 f2 I' ~9 t5 i9 @; Y4 h( Y: V# F(replace-item 3 trade-record-current note)% [! k. @/ h( A. X8 a
2 C2 @. S0 @0 U+ \7 q% v, ?
' J8 k" O8 n) a& yask customer [
; y" W2 b3 l3 E3 z) ]9 Zupdate-local-reputation
/ O& \7 @3 z& B7 w8 Cset trade-record-current
; ?' l0 q. r! n. A(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 f8 W/ ^" Y5 t0 P
]
5 Q7 \# c, X. U2 X8 r& s7 o# T7 W3 b7 x
! O4 j8 o% F d% \+ \5 s `0 _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! ~+ |, {; q8 g- J3 F) Q
: r0 F/ Y2 D/ pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
]; x7 s- ?0 z; h7 w4 }1 h;;将此次交易的记录加入到customer的trade-record-all中
, z) K. h2 P# |7 ?) p; n6 E! J, j: @end
6 t! Y6 U M. ~$ R1 E, l: I/ x4 i0 ~5 |! X1 B. a
to update-local-reputation
2 T' x, ^" W7 C9 {set [trade-record-one-len] of myself length [trade-record-one] of myself
" d1 @; ^2 o) i
! P( g5 w- }. G1 @( Y" f5 \( O0 Z: c" b7 Y0 D+ \( r
;;if [trade-record-one-len] of myself > 3
8 d' C. p/ F3 ^. jupdate-neighbor-total
' R) I; v7 U, j5 J Z; G; s;;更新邻居节点的数目,在此进行) [% W' }- {8 \8 Y8 k0 [
let i 3+ J7 g* r3 m5 a. U* N% z
let sum-time 0
( ]6 K `$ v% m! V% t9 Hwhile[i < [trade-record-one-len] of myself]: @0 P% Y3 i$ p" D# g
[9 U: U% j& I; d) V0 J' h) P! E
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )9 u# \( D1 G! ~- B6 j' N
set i: b- ?! M# i2 f) {9 Q
( i + 1)
3 F8 M5 I! ^* a9 Q v; V5 ?]1 f5 h7 B; W- h/ t" @8 a& B0 m, P
let j 3
z" B+ X! V; s6 J olet sum-money 0) r' k: |, J: u* s! }
while[j < [trade-record-one-len] of myself]+ B% q3 F6 t; K' k& V
[ ?& `' i0 R6 @- @/ E; P4 B' ^) a
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)& J4 L- ]" Z2 I* z
set j
0 d0 }- V1 d% S( j + 1)" V% [- A, Z8 _/ q
]
0 K3 {6 l3 Z$ r. e/ a" v, n# alet k 3! Y; n6 U. j" Z
let power 0
7 K v+ i# \& n a+ ~! X' tlet local 0
9 i0 M% O, X( t& l, y5 ]" A3 }while [k <[trade-record-one-len] of myself]
; i5 S. \4 Y0 F4 f+ L[
; L- }" ?7 | c, j4 zset 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) * p& S' _9 x* n% E: R
set k (k + 1). ]7 {3 D/ n0 S4 G
]) q1 t, O% I8 G+ W9 L# [$ i
set [local-reputation] of myself (local)
# G# c. O/ Q3 M! l3 B. B, bend0 X/ y! z' P+ U. L1 T+ l* Y
; m) Q8 g' J, T3 ?; {9 I
to update-neighbor-total
! Y2 J+ m \3 y1 C- H: g |7 B" R! r
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ] o4 W! W* H& Z) q
7 m: J$ b k( ^
1 m* S1 M2 \! E9 Dend+ ?0 A7 h! }+ J9 A2 g8 @2 H
+ V* i3 X7 A o, w T
to update-credibility-ijl
M5 H# g% y" w/ b& v
; ~6 X! x) d( F7 d6 W& t: r;;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 }' \2 \7 U0 h( F( S* ~3 }* I' v
let l 0
; j s {7 O6 G" @$ Z) wwhile[ l < people ]
* c: {0 r7 Z2 i9 D;;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
8 r: w1 n* `4 S# F `- O6 Y[' u3 Q5 k U R) W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
6 X V4 G- d3 s: R0 v% Wif (trade-record-one-j-l-len > 3)% |. I* w6 e7 Z* Q, ~2 O, I
[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' O8 `+ w# P8 L/ J% h9 W
let i 3* M$ K7 z `3 q" ]; T
let sum-time 0: }. v, e: b7 q! F" h2 @( X
while[i < trade-record-one-len]6 V, z4 Q- Q8 H9 ?! g
[$ y) B# d- A# R8 G. h
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ g }3 G# u, L8 H- _
set i
/ x- |- n. N% A. n6 V! I" F$ `( i + 1)# B7 c3 V& I7 \3 j Q
]4 c( c6 N# G p
let credibility-i-j-l 0* d9 U! l, \. S$ ~0 i, E% s3 B
;;i评价(j对jl的评价)- s% [9 E% D G: { J/ Z! A
let j 3
; {% [* Q0 ? [& _" |) g6 {! Alet k 4; ~% P- B: a* Q) y& ]6 |. f
while[j < trade-record-one-len]
7 @7 z% V+ I) o% J P[
3 q4 |+ {% w. zwhile [((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* Y5 M* H% `4 Z) l4 Z0 K3 T9 }/ _
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): c/ J* M6 D5 t
set j" K0 Z5 q& L6 q( K
( j + 1)+ i/ a( b! h* a. c/ V4 |0 G
]
& R! r$ ^* k7 \8 t& Q( v3 [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 )): v j2 p' c% j; J$ | P
+ {: v# [% G6 c1 T
% U8 Z d1 f7 Q& j J: F Qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 x/ h, @' c F* d;;及时更新i对l的评价质量的评价$ B( N) u! f( _( Z6 O
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 Y0 H2 y; w; J5 l9 Iset l (l + 1) G% O l% j K0 p0 o# ]7 H
]
# g _* `9 X$ K' ^( xend
1 t+ M9 Q% G9 I* j ^) `9 ^8 B3 j, Q& k; m: Z5 \
to update-credibility-list( G: ]4 d: _2 x' V- J! Y
let i 0
: p" h0 s7 a1 s0 S: U3 g! Owhile[i < people]3 B7 P# `3 Q: r; M# [. }1 l) U$ U6 W
[
- o+ L1 h7 [. R# s; tlet j 02 @6 Z$ O( _! E
let note 0+ G* [7 R( _5 i ^
let k 0( B9 n0 c% o4 ?" a9 v/ L
;;计作出过评价的邻居节点的数目; H, _+ B$ {/ Y2 O2 T- f: a4 J9 E
while[j < people]$ P4 Q5 d9 C3 i0 C4 K! `% S
[; |# p$ |7 k# g
if (item j( [credibility] of turtle (i + 1)) != -1)! U0 n7 l/ ~2 W
;;判断是否给本turtle的评价质量做出过评价的节点
0 w, Z1 B" T( c$ o" ^[set note (note + item j ([credibility]of turtle (i + 1))) S0 p; B7 J5 T2 O5 t) j
;;*(exp (-(people - 2)))/(people - 2))]
# s% U5 A9 A& C8 E' n6 B4 B5 c8 Jset k (k + 1)- Z l, _ ]4 m- a% c8 d4 f, G$ \
]/ A$ f/ ?" G# I v- Q# @) w
set j (j + 1)
1 ?! v; X1 l9 }8 U& W! f]. ~0 C' c+ a1 \0 q5 Z8 ?4 u' j
set note (note *(exp (- (1 / k)))/ k)9 t5 a; ^+ R& [9 f3 Q9 v# {* M
set credibility-list (replace-item i credibility-list note). I: E2 U+ u/ T% V" a# {5 C# P
set i (i + 1)9 N X# c) v( P( I: f% V, B
]
2 T5 U5 `9 D8 ?) }: bend
: k, V! ~# m7 ]: V3 a* q/ {/ h1 l
to update-global-reputation-list5 |4 k& |7 U5 O6 S8 g, U+ x
let j 0
( [$ u, ]$ m# Y3 [" \" `while[j < people]
& J5 q# r) E: v) a1 W[
7 C% z; o$ |2 J G* Plet new 0
0 n( j1 }5 ]' B* ?;;暂存新的一个全局声誉: }: S& }) f7 S/ C, M l3 P
let i 01 a, r8 [' k& |3 s7 b* E
let sum-money 0/ [& e5 v: q& h/ j7 b9 x2 b7 `
let credibility-money 0" q* P* @6 ^0 }- Z9 Y+ i$ Y( I
while [i < people]
, E5 |7 t' ^. Y: `[
9 N$ L! u( W6 K1 Nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ y( Q$ U, n+ X i5 Y* n9 K' P6 sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' q# `( [1 ]7 H) l3 {. P
set i (i + 1)
& D8 \ L T$ U+ l) I5 ?" f]" R9 s7 `3 t4 Q- o) R, c* \
let k 0
3 y/ ^/ N) X6 g' zlet new1 0" x" L# s% s1 A0 ]2 `3 B
while [k < people]
) a% v& ~# j& [# V; O[2 v& t8 I& g4 \8 c- B6 }0 @
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)# I) k- D4 u4 E' s! ]# h
set k (k + 1)
- p: h/ ^: ~! N+ E5 S' m3 M" a% M3 g]& S+ Y2 d H& }! ^
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 h0 n7 r6 `4 z6 f
set global-reputation-list (replace-item j global-reputation-list new) q/ u- M5 L' J# [5 }' Q
set j (j + 1)% e8 [4 \/ O/ r8 L+ f" t
]4 o- A( A1 J: n0 _8 ^5 L" C
end
' t9 z+ b O1 u- s4 H
! ?/ U, L% C; n7 j" o; Y y. V3 @# Q, `( H, d
O, N) S8 s+ B$ e9 D' Sto get-color) S# f0 Q6 `8 D$ c+ f' P
0 A; V. d1 q; D- h: Hset color blue' s" M/ m! ~! ]
end2 N2 b# d0 g; g7 n1 o
; w8 w7 K. d6 f2 i" x+ A
to poll-class
+ }* R4 o" i% E9 ~' j; P# Zend
6 Y& k( T9 Z$ t T( I) H8 e
. F) p; \3 c2 z- F, o* W3 M8 |+ _to setup-plot1
/ S4 D( O8 T9 A9 H; w0 ^& l: v! X- {7 Z, T; k
set-current-plot "Trends-of-Local-reputation"
6 w! V" [# A3 }7 H G4 l* B: x7 c; R+ ~: b* f, y' V& @/ Y
set-plot-x-range 0 xmax
) h. N- {. H4 i+ K
7 r7 Z( Z% v* o( |set-plot-y-range 0.0 ymax0 I2 e( Y Y, s' w9 [$ d; f
end9 h8 H) T8 v. C" i2 e
0 X% [+ s2 g8 Y
to setup-plot2
- L4 s1 c0 S3 K% X
" e2 V/ N+ M/ I; f$ C. wset-current-plot "Trends-of-global-reputation"
8 i' n0 L$ G: b- x3 h# G. ^6 n; p
set-plot-x-range 0 xmax
! T& S, e- S" Z; w3 B2 }
% @: P3 F t( U( E# V8 Lset-plot-y-range 0.0 ymax
- A; Z! v% Z( G$ S+ |$ T8 Q9 `end/ y9 p1 n& [" P$ j/ Q' u; |- t8 S
2 Z1 y) u% t- u& J- ]6 {0 q
to setup-plot30 }, K% ~5 H- J8 K
( ~ Z) f' s! eset-current-plot "Trends-of-credibility"
5 f% `: v& ?3 }6 w0 \2 \- D! Q; R
9 k e4 ?9 b/ u J* Lset-plot-x-range 0 xmax; w( E3 X; D$ ^' m2 t% O3 H* c3 E
) R8 T' Q! C6 _4 O
set-plot-y-range 0.0 ymax b8 Z" ^% }0 v
end
8 I" \0 `: g6 C$ S5 ]' Y; r& Z7 }2 q0 T; C4 f% ^
to do-plots
5 }" D: I4 l, I! b; L: z) X0 \set-current-plot "Trends-of-Local-reputation"
* a4 Q- [3 J" K @ Gset-current-plot-pen "Honest service"1 |: V9 ^- P+ o2 C5 x
end4 s2 I" F0 J! P* T3 u
; n8 M8 l/ K7 m, b! H# P[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|