|
|

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0 W+ F" U2 X/ q; P
globals[: m6 V6 V6 q0 g1 h/ }! `6 j
xmax% c9 i- U% @- K; ^
ymax! s. B! V& r2 M! c1 r0 s
global-reputation-list; f5 {; V% j# d6 M+ a0 q# s
6 l0 u; ?, h3 t+ v( ?;;每一个turtle的全局声誉都存在此LIST中) P) e* m2 O% D! ~
credibility-list5 z/ ~0 g3 X- U6 i# D: `
;;每一个turtle的评价可信度7 D- G& N% X* O: X
honest-service' p/ {( G; `7 V t$ w! y0 G6 q
unhonest-service8 @$ |' Q! d9 U9 n/ H) G
oscillation R( ]" X- G; t% X g
rand-dynamic0 L' |3 J9 `8 y. j& a; l9 O* g
]9 a1 W: C5 }/ I" ]# f
4 `- \1 j/ r( @% h, o. jturtles-own[( x$ I! n- [: K! B% N/ _% M
trade-record-all0 O- X) T. z9 A& b/ n, Y3 f |; f G) n
;;a list of lists,由trade-record-one组成0 h6 z# r5 f9 g
trade-record-one4 }. K" z4 ]5 B' D
;;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 ]1 \7 w; x+ ^+ W
! h7 ~9 O. u7 p8 F _;;[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]]' x; a& a- r* q& q
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# p2 S! B7 r6 u8 `1 ?
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
5 o; z* k0 ~8 U4 g! b; D% P; r5 _neighbor-total+ Y. |5 ~2 M9 ?$ g! Q" I% e, |
;;记录该turtle的邻居节点的数目 f9 F1 h, G4 n6 l3 z. q
trade-time6 z2 j- J& k. x) u+ ~
;;当前发生交易的turtle的交易时间
/ o% s3 \6 C9 X% u9 e# Pappraise-give
0 i2 f3 C9 ]7 D3 R;;当前发生交易时给出的评价
; g# P+ l! a& B8 h$ t, l4 i6 }% nappraise-receive/ Q' |8 M; o% n. u
;;当前发生交易时收到的评价
/ F* ]5 W" K6 ~$ h9 _9 o& v) Mappraise-time
+ r4 s* u2 u- y$ G o;;当前发生交易时的评价时间, T% h* B# D: M# \5 p' z! K
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 Y) ^8 E! i$ D( {7 L8 A+ `
trade-times-total
& S& V$ n* t1 G4 |, S+ D* d) Z;;与当前turtle的交易总次数0 S; ?) v. q3 t& l' {' u6 c
trade-money-total
" W- y) n/ A: p$ |: O; V$ P;;与当前turtle的交易总金额
" S8 }# Y; `4 Z) X& Tlocal-reputation; T/ W4 h6 P( e& m9 U: [" F
global-reputation$ F4 _- F9 ^9 e7 v% O
credibility& H% ~5 Z* Z* Y+ d+ r2 O
;;评价可信度,每次交易后都需要更新
& B, E! i( t, I8 r7 Pcredibility-all
% [) v. X$ \4 k: `" j;;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 E2 @* B+ `, _3 r' P6 }- ]) O7 V! o5 u5 t9 F9 Y8 A4 {8 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
9 m) @7 a5 g" ~1 b7 Ycredibility-one3 i v9 p0 j# S K$ k; c
;;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) J/ g2 G0 S/ j, U
global-proportion1 i, `2 ]- S; x/ Q: G# y E0 ]
customer
* G: T! d7 [, u' x& Ecustomer-no$ Z2 r& a0 i V* r1 z% ~/ D5 F0 ]
trust-ok8 m7 r: Z: c7 u0 z! y+ C3 |* w
trade-record-one-len;;trade-record-one的长度9 Z9 P* ?" _# w
]
# u6 x) W# w2 P5 d# @, ^
6 U! T- F- E$ s$ j9 B E;;setup procedure% A. T$ Y* v d7 J' U- {! U( H
( w. M ?2 }+ u: Q
to setup* F' K$ o* E6 ]1 a6 T+ \( P* h k
' B5 e5 b/ F6 A/ Q; A, f3 X/ |
ca
/ R1 j! a' _. h# |' ~# O/ B) _+ I$ V& J5 ?
initialize-settings9 l8 e. x. B( m. {! l+ s1 |3 I
6 J6 w, l. S: I. g* f2 Ucrt people [setup-turtles]# p" w' B. X7 ~( E/ ?$ w; o5 e+ F
: I2 M% H5 C k2 d' b
reset-timer
n, \4 B$ ?7 W. |7 A( v
3 E! g8 [5 ?0 xpoll-class) c$ E* W4 W2 Z
/ ]7 `* X) w8 y( q$ Q3 Ssetup-plots/ V# M; N/ M6 W' ]
1 j5 X( p, y7 n& }+ o
do-plots! P' S+ Y3 f: B2 a; [! X
end9 P; W" P C% L$ r% \$ [! X% |) |
# k4 [. _0 y% n( e6 I' X8 G& X* }+ wto initialize-settings
+ o) k- v! ]( V. a: D; z( ]% |2 y' z c7 q& h
set global-reputation-list []
! K m6 G! \, x* r
; g' f# G% y; o" Z# R5 vset credibility-list n-values people [0.5]
& ]- c* g' `$ I# {
( Y& k+ X/ P2 Q- w2 iset honest-service 0
( m0 N6 |9 M/ F- x" O: |$ n( ?9 O" ?: g, v* S) V- M/ e
set unhonest-service 0
! D" B8 J* }" `1 p- g- m8 ?" R8 Z- l# A- n' k) O+ y; d
set oscillation 0" t' ?" a0 j6 z3 }, t" h
6 e5 I9 L5 s% ^set rand-dynamic 0, Y1 n5 I5 Z! h2 H, l
end
* L, E- G1 b$ i4 B/ ~8 M/ |# t6 ]: u8 \: e- q
to setup-turtles " V$ L S5 N/ y8 S
set shape "person"/ V! O c+ Q! k" v( O
setxy random-xcor random-ycor, B+ y: Q0 T/ w8 P
set trade-record-one []& C& R5 ]/ V/ v4 h- p3 @
% b- `( g' C$ [+ K! o" _set trade-record-all n-values people [(list (? + 1) 0 0)] : o" @* Q0 o% e/ M4 Z# y* E$ e* H
" H# p8 ]8 O! q) d! B
set trade-record-current []8 }9 V8 p) Q0 a# I# J
set credibility-receive []
; A) T( s; T$ S* @! g; Uset local-reputation 0.52 d* I. t' i. p" u+ b0 d
set neighbor-total 0
+ @; S$ T# k6 vset trade-times-total 0, H$ j, z: f# D* n4 C. U
set trade-money-total 0
b; V1 Q* Y: D# F/ O) o6 g8 i7 `set customer nobody0 t! f) M2 J; I% _' h! o
set credibility-all n-values people [creat-credibility]
3 F" a3 k0 r B. nset credibility n-values people [-1]5 V6 o7 }+ D4 B. I P; R
get-color' f |5 W4 R/ H6 Q) ?% T
( M' n# Z1 _! c- `( Z+ T/ L. nend, F6 V; Y0 D3 @9 S5 Z& X+ f6 D
/ |1 a) g: Z! k7 \' t
to-report creat-credibility
9 T1 R: z; p. P* D' i; e: b9 Rreport n-values people [0.5]
( k! e4 T/ j: ]' m4 Tend
3 H1 b: [3 G1 E5 C) N9 a2 _
! e7 U6 x2 M3 fto setup-plots
/ }8 Q/ `/ n- i( f' E
$ h' S! l, ? p2 Uset xmax 30$ d' B5 r/ a1 e# j7 i' L7 J* [: c
, f2 B! q" \! ^* n) g4 ~
set ymax 1.0
9 E& E% J/ L' d) w6 k h
2 Z$ j# d5 z7 p1 c( Y* ]clear-all-plots
8 ]8 i! G$ a) T6 \6 l5 J S8 p9 o9 K) A+ ~/ [6 V) D$ v' y: h. i
setup-plot11 t% }3 J5 [6 b
- ?: [% ]9 {! y+ ?" k( ^4 ~! ~
setup-plot23 E! f6 F# X; I' V
; Y ]3 o* p7 q
setup-plot3( ]0 g( q. V/ k" c2 D
end( T8 V* p& E3 o6 |( X1 k/ g D4 l
- V4 j1 U" Y% \" E;;run time procedures! d3 N. Y& [% F3 x/ \6 I; G
- u/ [5 o, y' I# D
to go+ j5 t5 C) K. l* |- a. Z
. K$ s3 r& f0 h1 K$ U% U: ^
ask turtles [do-business]6 \, g& E/ V, F7 ?& {5 m; j
end: I4 l j0 e$ O% _, J- |
/ j( S6 d9 `1 u3 Gto do-business / ^! P& \4 d7 Y
7 \5 {9 r f4 k$ ]/ x
+ z# n: x1 l: j( f* Z# v1 Qrt random 360: Q1 ]# C3 A1 _0 @
9 z6 B5 @0 p0 Y" h: Kfd 1
0 U1 i4 i. P9 [5 t4 v' V5 O7 k% [! H; t3 G& [- `3 Q
ifelse(other turtles-here != nobody)[4 X2 O/ T0 B' r3 e* S! c; h) O! }
$ |5 g1 P( N6 i- d4 w. X
set customer one-of other turtles-here
0 P5 I: H3 X7 v0 h2 `7 E
' T6 f0 [2 d# d' x& k;; set [customer] of customer myself5 C+ u1 h- s( Y6 @
* \2 ^. T' ^9 T4 L1 d, o4 [set [trade-record-one] of self item (([who] of customer) - 1)- Z: Q4 N+ m* K9 }# m8 R3 J
[trade-record-all]of self5 T z, k, @7 j& |4 `" V2 Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& \/ ~8 F6 ~0 R1 Y& y
' ?- V# [2 p4 V' t6 `; Eset [trade-record-one] of customer item (([who] of self) - 1)& F- t! c( M, Z$ A2 L
[trade-record-all]of customer& H" ^) [$ r! [6 s0 B
' A: P6 P6 ~1 s# h0 w9 lset [trade-record-one-len] of self length [trade-record-one] of self
; w% ]! a0 l7 a5 b7 f8 X
) x1 ]# k: K& r1 Zset trade-record-current( list (timer) (random money-upper-limit))" e6 c2 q5 y& H5 Y/ O9 g$ Q2 z# Y5 }
Q. ]3 w+ E# M7 ]/ E) }; G
ask self [do-trust]
. V7 S N- T/ j% r B# h;;先求i对j的信任度7 L }$ P' Q: g9 u% H
7 E# R# y; u+ O) X# Wif ([trust-ok] of self)! F( y0 G5 x) p$ j/ ~
;;根据i对j的信任度来决定是否与j进行交易[8 }3 `/ y, e1 e3 h" t) M
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ L/ t7 g @! ?1 E. [
5 A. `3 }/ m+ l[
+ ` G T" ?8 c$ y0 X( Q/ L" m9 f" n3 o% O# }0 c; c
do-trade; N" ?* _( K1 J% I- ?4 @: a h" j/ j
# Q J: J% q1 ~0 ~" L( H# \" u) ]) oupdate-credibility-ijl) O, h- L; [' ^' _- Y( N
1 |! p7 I( c) _! s+ g% s% X7 supdate-credibility-list/ Y9 k- L2 u" X3 U5 b
" h( V- E" ^3 t4 [* D
$ p# K8 E' c- ]- E D0 M4 n$ Nupdate-global-reputation-list
' G/ d/ x# \3 }* V( E3 [! d; z0 ?0 }7 @$ L( \5 @
poll-class
6 Y5 N( N3 k: w4 d. B6 o- J& A0 F$ y7 f, _2 T, r' O9 o
get-color
9 l& a1 H$ u* O2 O7 {2 w w. G, G; q! M/ R+ L( E4 N
]]
+ h8 @9 g; G( V, ?, j% v/ |/ p3 L5 p; Q
;;如果所得的信任度满足条件,则进行交易# T+ X* T% c! A0 O" V R
4 z; b2 G1 i& P0 K[
3 R7 {4 g, O3 ]1 I, C W! S6 H+ g2 z8 n, {1 n% ]0 J
rt random 360
0 H4 H4 s' J, p6 B) |# i
8 j6 |" m$ S! G% \" M1 H% _! cfd 1
: f5 i# l5 z( u
2 f! r; R3 M3 s# ~]
7 c- f7 O* V( p* N% \+ u# N" z8 P8 {2 ]$ h+ Y2 H' Y) o& R/ j
end
@' x1 D2 p# M$ @8 |1 V: z: Q1 L& B4 e% Q2 {) }. H
to do-trust " O: O( m0 J4 o( w7 L }
set trust-ok False3 n/ g5 g& N, o1 e# l7 o
/ h4 o7 F9 q8 n" b |
2 L# @. u% P7 F9 |
let max-trade-times 0
4 q! ~4 r q# \- x: j) @( Mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 b% P1 U( y# v) s; z
let max-trade-money 0
: k ]/ [! p7 Y) v( W4 _& N: [foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 x q6 H" `$ E$ [
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ B! C' I( e0 a- d; q) ]( O# _0 ~6 G& f" R( c8 f! E* R. L# _" X5 t
" q+ a! Q b! l8 @) ?
get-global-proportion# _4 k/ d5 P q. b4 X
let trust-value6 l' f& Z- V c) E4 o6 L8 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)
4 e. j8 \- C# `% M! G, uif(trust-value > trade-trust-value)0 e& [1 g- p9 G2 W+ ^( J4 e, {
[set trust-ok true]
! e9 ?7 @5 I0 I, S$ w2 Uend- Q( o3 O! u$ `7 A5 j+ U
+ `2 s9 H0 q9 T9 K8 Ito get-global-proportion
' X/ s8 d, e: B/ tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% Y- W9 h; j" L: O O[set global-proportion 0]
: a8 @ M( @; w# e; F; u! s4 l[let i 0, W) h9 c. u& i' e! p( `" b
let sum-money 0
0 }, P" u' {) wwhile[ i < people]
) Q5 N7 [# k; v0 e" n[3 I' n& v9 B# q+ a: i5 K$ `
if( length (item i% j/ m- b* `: |6 {6 J
[trade-record-all] of customer) > 3 ): E ]! _) R, T) ?
[4 y5 }$ M2 ^5 \/ O$ [; x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# `* W5 E$ p, []
. S/ ]5 L S. w]1 N* A2 U h5 |3 e
let j 0
|0 k+ ]9 m; @: p5 s# P7 A0 ]let note 0
( a8 ^" j" b6 V) m0 `while[ j < people], i* @, w! v, E6 w( K* d. Y
[$ H8 J7 b5 d# m7 g
if( length (item i
0 g. c) R f" r1 y( i+ p' e3 }[trade-record-all] of customer) > 3 )9 K8 v: F/ Z$ C- z
[; K" p% V- N. w( [8 G: d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ ^3 O' D$ B# V
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" a" k4 C/ L3 k: g5 Z& R* J[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: f$ y3 w% z9 M7 v B! ]]! L$ w8 i7 V; @# r9 A
]5 O# J( ?# ^6 `
set global-proportion note4 ?( L" N0 W% D E) R, ]
]8 V! w- B1 ?% j0 L% X& ~0 a
end, C u' n( x9 a3 _. k
3 J4 R: |' P5 r/ r$ Q" H
to do-trade" s7 d9 Y2 C2 h2 x6 S4 W. Q! v6 r
;;这个过程实际上是给双方作出评价的过程
7 x+ S) n# G4 l" Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- u! k5 c, A5 M/ o, e, ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 s2 ?* W) {7 c4 L5 m$ q8 j
set trade-record-current lput(timer) trade-record-current
U- U; K9 e, [8 P0 D;;评价时间) a/ d: t( U4 ~
ask myself [9 o2 Z. ]: E6 B: b' N0 U r) g
update-local-reputation
4 q! G5 l% T; b, s+ Kset trade-record-current lput([local-reputation] of myself) trade-record-current6 L9 S& g3 I- ~
]0 [+ y3 o d* j/ w7 x9 Q2 m( c
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
' H* q: d9 d* Q0 a5 {) ~;;将此次交易的记录加入到trade-record-one中' J1 {+ Z* b5 b6 G5 }4 c
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& \5 E' n+ O1 Z
let note (item 2 trade-record-current )
{) b* K+ `! u# Q# s+ Z3 `set trade-record-current6 B0 f# ]- t9 T' a; F
(replace-item 2 trade-record-current (item 3 trade-record-current))
, o8 C, [& \- q" B1 ?set trade-record-current; i1 v- ^% {5 [
(replace-item 3 trade-record-current note)
0 P$ E1 l& a$ D& [
) M) V6 {. d1 Q: \% e; y9 `! m
; U$ ^, y2 w# d5 o: Mask customer [5 o; J( I. G/ T+ O6 p2 k
update-local-reputation
& N5 p( L0 e1 P: sset trade-record-current3 J) H0 ]% y2 d/ H( K6 P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
- ]% A9 n. j7 W]
S9 {' R5 T! ^5 |7 B2 L6 I
3 k! e* E4 A' b! h6 i" [' u9 ]8 Y5 J m9 l3 w: C+ N
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: U" `. n0 s# Z# V: ?! M
# Q5 L; J5 m8 v" F0 m$ vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ N; Z; c) K8 N z. N, i4 y
;;将此次交易的记录加入到customer的trade-record-all中: v2 |9 [/ A# Z. f* n
end
" Q4 b, s! ]. A; i; O- _
; j" v, y7 R" X) ]) pto update-local-reputation* D$ @9 I0 U" h
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ \/ h% [0 z* _" ?7 j+ K5 [$ U
* |. g' Y4 s/ N# A1 m* g0 t% f1 W& f
;;if [trade-record-one-len] of myself > 3 4 A( X \6 ?" m0 q. C' w0 k
update-neighbor-total
% }. i; h, E7 ~ n( f) `;;更新邻居节点的数目,在此进行
1 l9 X/ J5 g2 g' H. b& t4 Plet i 3
, y( W; h; e% _. D1 K8 v/ Xlet sum-time 0
/ p9 n, h- q% Z; S& Rwhile[i < [trade-record-one-len] of myself]
0 u, g2 U. j' F+ c3 v9 K1 S3 a[
! a" W" U: O5 |5 m3 h- Gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
3 Y8 }8 E/ A9 `: v3 B Jset i8 e+ x* H, s$ ^3 J& g! x& a! P
( i + 1)
4 W4 \/ j9 \& o, } a+ p]
+ R7 X0 x: H" Jlet j 3
/ ^+ @& Y, s; \8 slet sum-money 03 }: [/ X1 }$ {) B1 N# o
while[j < [trade-record-one-len] of myself]
9 K) c$ `" h* Q/ r$ ][$ ^" m' K" w7 e, |
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)
" Z) a/ V: y/ e) C$ l* Lset j
6 y0 B( B* c' K( j + 1)
) \; S; x' F# i]
5 k W% [9 C, X# \8 a" i7 Wlet k 32 u' g8 C+ I* a3 J7 b# H: D
let power 0- e! B' w! ] [8 w5 G6 X) y1 \
let local 0! ^7 y' x) Q% ^4 s) h- q
while [k <[trade-record-one-len] of myself]
$ {2 }* z( L& N- N% Y. y[. a% ?8 p" ~0 u
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) # c8 B' l- `8 x5 k9 I
set k (k + 1)
, n% N+ _. ?) ]6 I- }) F. T]" u, h. _) H k- n" r3 X3 C
set [local-reputation] of myself (local)
/ m. D5 \" c8 {4 q8 z" j! Uend
0 C1 l' b- ^0 Y$ I# B
4 A2 n) h9 ~' Y# Gto update-neighbor-total
9 x0 o- a& i) `( b# K9 e, L& v9 \4 l# g8 o0 V/ R
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; p+ @# C. u% `* q# A
# Q, P- t$ D, R3 q( w* {6 f: w" V- T+ W0 F+ h% _# u( o
end
0 L& A' Q3 T* w `6 T. g$ ]6 U
# O, i) F/ |+ p% ]) X6 ]# K dto update-credibility-ijl
+ z4 d: n, U, X" y5 N
4 v$ q6 G s3 T M: Q;;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。. T. @# z1 s; ]) H" h" W+ R' y, D
let l 0
6 j8 l6 Q4 o, L. z1 l( X: c7 {while[ l < people ]3 F: c: _) z4 i: y
;;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; w% u: X5 b3 b9 l T
[
) j- o. \7 U7 n; y7 s; Hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer). Q2 o, h, _ ?! q! @1 I3 O! i
if (trade-record-one-j-l-len > 3)
1 N$ `- a9 _0 m. h[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. W! ?" H. @% P) V$ [
let i 37 H8 H* @- R, A* s
let sum-time 05 a% T/ b9 K2 u L, U3 L
while[i < trade-record-one-len]; }% I% Z6 P. r: J
[
/ v9 y, P1 K# `4 Fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 b h( {6 u! S X9 mset i
5 x4 A$ I/ }0 w* C$ Y; |( i + 1)3 m/ E$ V4 L: `( m* H5 `
]
& ]: V% E ]! W) b3 e9 `' J# elet credibility-i-j-l 0' [; k5 S8 }$ ?! I, B. S
;;i评价(j对jl的评价)
; U( A% Q+ ?3 T0 elet j 36 Z8 k) R5 B4 a8 j1 b( {9 w/ Q
let k 4
6 @8 M" h7 \; m, ywhile[j < trade-record-one-len]8 k0 M6 R0 \) y4 V+ E1 O
[( G8 q0 {$ i8 Z+ a% f
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
$ U* m! `, e- b: k3 C: q }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). |& U7 T$ r& ?9 Y
set j
4 e' h. s& H, D7 O9 o( j + 1)0 P' F( F, w( ^& ~$ q2 s; X
]
! v6 s0 D: |6 j- e+ ]. Jset [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 ))# u0 ?+ s/ S' L, M- w% f7 c( M z
( r% g; `1 ~8 P
& w8 ]/ M6 }. ]* X1 Qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. h% w" D J/ i: c! O# q/ k;;及时更新i对l的评价质量的评价1 G& B$ [/ k$ Y5 T# {% Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 F/ B' R4 j$ A2 r7 M U
set l (l + 1)4 J! t5 L& Y0 r* ~1 S: E
]: S* P! x: D1 K+ ^
end
- w" Q( g! }9 q+ s9 F* l2 H& m8 R5 \4 z( o; W, {* V
to update-credibility-list2 f5 f7 A4 H" D/ Z+ t* S$ ]
let i 04 D% v/ d" |) b1 {" C
while[i < people]
9 ^& B& [% R+ t* M[
" _7 i: x3 I+ [let j 0
( o0 T9 c5 t/ Hlet note 0
7 m; w- C+ q, L0 ^; {. dlet k 0
# h/ p" b5 q+ N/ [( V3 i$ Y: ?;;计作出过评价的邻居节点的数目
( g5 H' S% o0 i3 Gwhile[j < people]* Z7 `. Q/ e: m! |
[
4 M9 S; H. p, F% M @" @) i: Kif (item j( [credibility] of turtle (i + 1)) != -1)
( J$ `5 }" S; q$ x8 U;;判断是否给本turtle的评价质量做出过评价的节点. E8 U& t1 }3 n- c
[set note (note + item j ([credibility]of turtle (i + 1)))
/ c0 n* O; a0 G+ T) a0 g1 o;;*(exp (-(people - 2)))/(people - 2))]5 w# D d {4 R6 ?) i+ A
set k (k + 1)# R X% {. \' ]7 I
]
* B/ m3 V8 \% r' F; G, ]0 Cset j (j + 1)$ G1 N9 c( T" ^# `1 @* V$ v& b
]+ a6 I7 }( w* I9 G/ o! A; ?
set note (note *(exp (- (1 / k)))/ k)
' K# x7 s: s, q& X, Fset credibility-list (replace-item i credibility-list note)5 k$ K7 F7 q- [ I3 g
set i (i + 1)
, H: k, q4 O- h1 j, k3 ^9 M0 v]( Q% M+ D6 B0 b
end2 t" }" U, {8 Z
) V- I$ u0 N; [( Y P- w0 Qto update-global-reputation-list
: U" @) q. _/ Q# k3 Nlet j 0
1 |: k* H8 W! T: Z+ W. Q" @while[j < people]
7 I" s6 ]! M* x! t[: }- y2 U% I, t# @
let new 0
$ ] N2 e- p- R! N1 r;;暂存新的一个全局声誉 J$ j& s B$ z' `1 |* a9 X$ g4 r
let i 0
; c7 D" ~. O C) }let sum-money 0
5 z. W- E- v% plet credibility-money 0/ A( O+ t" f7 Q+ T
while [i < people]/ o& A) ` }' s# v
[% V8 B+ h4 X" k
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; a a- ~) w E; ?8 Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% ^+ m/ v- S; T$ V* V$ V. Qset i (i + 1)1 d& ?0 I/ Z0 ^, |, F% {
]
% p- |1 C" C) z* o7 P4 X% a, Q0 Mlet k 0
" r: p5 k% K1 l' s7 m; r0 K1 w' Xlet new1 0
+ B3 Q' }; N( T# c( F' _; d+ U; y% bwhile [k < people]# o8 ^. y% l% K$ E( h& Q
[- i/ d0 ^# r6 w+ X" e
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)
0 q. W* Q" h* V. v" mset k (k + 1)) b" j- @5 e& v5 z1 f) ^
]
3 [+ Y. o: C, k# M( w7 iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 ?" T4 L4 n* N$ I
set global-reputation-list (replace-item j global-reputation-list new)
( v* b- y0 B. oset j (j + 1)5 G6 o& Y# p5 l; E4 [) u
]
* m5 a: R4 h/ b& yend
8 B; R2 B7 ?, @5 L, U9 A; F$ [5 U
+ \; T4 q9 F, y- t* h& _9 h% U: m0 ?+ V3 k2 G# f; m
to get-color( f& ~) U( G1 D$ u; x9 h
( ^. M" p9 B v0 Y8 Eset color blue
, V7 J% e. f' p. _" G% wend8 a( O5 C3 b) c' T
N+ N! b _* a# X0 u- c x
to poll-class
) C) y; E; |" n! Y2 y! }) Fend/ ?# [, Z- J: K7 P
5 l# K, }; B! Y( @
to setup-plot1. R+ D; D+ C8 F& O
. O+ G; b* X9 |) q* J" C, H% Kset-current-plot "Trends-of-Local-reputation"
! z0 h- \0 B7 u5 u6 z& n- T9 F0 }
set-plot-x-range 0 xmax( j1 K$ H1 {1 W4 U
M: g" E2 v5 a" m& i
set-plot-y-range 0.0 ymax5 G4 K& M( M, X9 D
end
% n# A3 N* g: U f; e+ `; S2 j# x
to setup-plot2" I4 k. c' I0 e0 U9 U, h( ~- q2 s
' ^5 ?# l% ^ K# v. x1 v
set-current-plot "Trends-of-global-reputation"
6 R" V: p( l3 Z, r& {2 t
+ I2 ~, J) M" y+ d5 Dset-plot-x-range 0 xmax
: f/ G3 [9 U! E2 j* a4 v' b: l9 K5 V, O+ V/ y
set-plot-y-range 0.0 ymax
/ b( M- z2 b+ T5 ~) v' q( ^end- L, X7 ^$ L3 c; D2 ^. k& B
$ l- n% M4 Y0 E9 ?; b# t2 X$ L
to setup-plot3
8 s, f, d9 [0 J3 Z2 P3 W: J9 T6 d u0 f2 m" B2 E
set-current-plot "Trends-of-credibility"9 @/ a P ?3 h2 G/ P# y+ \7 k& F
! F; }, n, _# C) ?3 _
set-plot-x-range 0 xmax4 I) p8 u6 g- s
* G- S) Y( O9 S0 W# V vset-plot-y-range 0.0 ymax. h) L& p9 l- F
end$ |: @ W3 k% A& P
/ U: q% l2 {" o5 |to do-plots) g A+ a& ], y" Q; n0 \3 A2 Y. t
set-current-plot "Trends-of-Local-reputation"/ T9 U' }2 I' E1 }& z" ]
set-current-plot-pen "Honest service"
) q) q0 K( [ ~/ Hend
3 @! n; d( y1 B4 y" R# t2 t8 l: |2 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
|