|
|

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% K& \5 ]/ p( y% ?5 R% ]% s
globals[0 W: X K( R$ y* {6 ?
xmax" w+ P \4 `9 `# R* K! ~7 B. S6 p3 b. b
ymax
+ v! e2 h1 u7 h: cglobal-reputation-list
2 \" B9 o- ^6 g/ R1 L% R z
; R0 j* Q$ J4 L( |0 N* g3 ~;;每一个turtle的全局声誉都存在此LIST中, }8 H) x& A# V0 U/ G9 c# _
credibility-list
6 |9 m( G/ [4 l" Z7 W;;每一个turtle的评价可信度8 I( Z, d0 ~5 a' w; Z
honest-service5 v( D# p6 i+ y: T" [8 g' X
unhonest-service1 ^/ z' m5 V' h# s6 ^
oscillation4 q1 C) g) _, [ Z: @) ?
rand-dynamic' @ b8 z' y6 I ~1 Z
]3 H! V/ P' U8 S* z8 k
: e1 n. P$ p. Y6 X
turtles-own[
, E2 M) L3 B% z( h0 s7 [. x2 Ytrade-record-all4 ]' H9 Y0 V1 \6 {6 d7 S4 z1 Y
;;a list of lists,由trade-record-one组成3 R* y+ A1 f ^9 e/ M
trade-record-one3 d# G! [2 K' Y) n2 Z- w
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% E5 Z/ E6 x! d( j
$ Q7 j1 {2 h) G8 z
;;[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) O2 N' b/ v* Q: r
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]
- Z' h! B* k, h- Y6 ~/ B% @' bcredibility-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list4 _3 q: w6 ]; p* G# p
neighbor-total1 D2 ]$ z7 C6 A# g
;;记录该turtle的邻居节点的数目4 B) g& g9 T/ i0 Q: C
trade-time
8 R. k' O2 ]+ O7 [; U7 [4 ~;;当前发生交易的turtle的交易时间
: Y/ C2 j/ J4 C/ V" e5 dappraise-give- n1 j' l/ R1 O
;;当前发生交易时给出的评价
) p3 s1 z% ~8 Uappraise-receive
K$ i5 Q5 u1 w/ Q; Y2 c- ^+ H0 o, n;;当前发生交易时收到的评价( j. E$ J; \1 E3 c
appraise-time
5 t5 g0 f9 c, G9 y;;当前发生交易时的评价时间# X1 V- l- K ~% M0 d# ]
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ w- F( C* S2 a+ S8 ~: W: ?4 Rtrade-times-total
+ S5 O+ c8 {' k" c% F;;与当前turtle的交易总次数6 N( H/ D: P& p+ _6 ~* F) Q
trade-money-total
* y/ l" N- i3 M5 q;;与当前turtle的交易总金额% n7 |4 ~$ A9 x+ E. X! ~* U1 y; V% ?. h/ `# `
local-reputation
% ]: [; y+ ?4 f7 ~global-reputation
) ]3 x/ ]. `- x5 }; o5 u3 ]credibility% x) T4 N8 a4 m1 ^. ~3 c/ U
;;评价可信度,每次交易后都需要更新6 f1 F6 x( m4 d5 i
credibility-all/ H4 N9 v1 z9 P4 c; U3 ]1 x
;;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
: E& n% }3 a+ j* l/ a5 R, Q7 }1 ?5 g- _) R; P3 A
;;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
, _3 U# X' e2 G; [1 qcredibility-one
9 ]4 G+ ^3 E2 V. G! 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# g& G7 i y+ @, c$ v" b, `
global-proportion* G. K. q$ S+ S! e a+ k
customer# C8 o1 n5 U. O$ s
customer-no% T# Y" v, A- i$ p; K0 Q
trust-ok) y6 z# c9 e+ [' p, [( U
trade-record-one-len;;trade-record-one的长度 I0 i1 X; c8 d& k/ t& M3 q9 {
]8 q0 h# W# E6 {/ P, G; M
: n% N8 Q2 y! u9 F
;;setup procedure. S5 a( j- C0 f5 c7 u) B) u" v: \
2 W5 a/ m9 s1 ?5 U# [, P( p2 ?( U, Gto setup. f6 Y7 X* z; d* _8 D7 q. j2 d9 V% ?
! t9 j6 K. s% ^& H, p! I
ca
" j, B) C) h# {' ] o- o2 k! e
# D' V. p7 q iinitialize-settings K6 w* {+ h9 I* W) M9 x
# I8 f4 p* V0 S; \' v
crt people [setup-turtles]; Y# G" Y/ U6 m! U
) l9 m# }, d' t1 p
reset-timer
0 B; M5 I4 ^# h0 _5 f: E& N
U- K" ?" M$ S) lpoll-class; w1 U7 f$ e3 j
h4 [( f5 h0 ?, v+ e2 U: G
setup-plots2 M1 t, h! [$ q
7 i) t& Y# Q2 R+ y! A
do-plots3 j4 ?+ m7 U& N/ _' }
end, L$ {# i/ B* r. w1 i) V) L! @8 w- L$ P0 o
+ F) F3 N) i$ f( u; W& Q" i( W
to initialize-settings
# m |# N2 [4 m6 i5 U: [/ r+ v8 S; z: W5 q/ X
set global-reputation-list []. V0 x: S0 B% C8 x$ L4 a4 C( |
b% K X/ \8 t3 B: Y, u5 f* D R- t
set credibility-list n-values people [0.5]
* A' v$ U) T' U7 }
5 Z# w& ~$ y. o: S# hset honest-service 0
0 _3 U6 E5 C: F9 c( X/ c, U- e* k
" v& ]7 W- ~1 N W2 Y& Iset unhonest-service 0
7 A4 u" p. y; G9 ?. e& w: f6 f. S& m* p% }2 D: h9 }
set oscillation 0
8 n% B) i( b( S3 c; V9 v7 F% g: Y
set rand-dynamic 0/ F, t6 G) Z' g) @4 r l0 l
end
4 C# v. S/ V9 r) c! w7 j/ g" v6 \% E' H. T+ ^- e
to setup-turtles $ U' s1 p5 c8 S7 `/ q8 F
set shape "person"
2 }5 q7 {! V" g, h1 [- C; Qsetxy random-xcor random-ycor) N. u7 F7 j! m3 k7 D: c
set trade-record-one []: x/ O9 ?& r4 V6 v
7 k) u; `0 Z( H
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 B5 Z/ I& u2 ?' I8 w) O
: s. g. h0 T& W/ uset trade-record-current []: F9 ^1 L; g* v1 E" u( A+ y+ m
set credibility-receive []
: I* p' P8 `& H! eset local-reputation 0.5
- [! M1 B* Z: E5 g% zset neighbor-total 0
- V) N$ n& G' `$ C. N1 ^) d9 g, Eset trade-times-total 0
- i q5 Q: \ \& Q* y7 Zset trade-money-total 04 x% Q! {" f* ]6 M
set customer nobody
( e% l5 p( W2 C' A0 T' W1 \# cset credibility-all n-values people [creat-credibility]0 Q9 V+ J. `0 _ E
set credibility n-values people [-1]8 {7 |. ]# Y+ q+ @9 A- a9 ]
get-color
* R$ D! Z1 E; ]4 N4 f' p% P% {3 H, u9 j3 h" n5 U% U0 P
end
2 \5 N1 u; |5 J# L4 }2 m7 y$ {4 C# h
- Z; n, Z7 e7 C2 A' E3 \to-report creat-credibility
3 D0 a2 F. b1 V- Y. K8 | }report n-values people [0.5]
# ^4 B# T% ^" R7 Iend: n; a% \# }) |3 M, R# k# g& f
7 B8 h1 Q1 H7 u8 P, x. _$ L3 R& uto setup-plots
4 e, W3 G) g: M9 N- v0 P, e0 q+ B! ?" }
set xmax 30
) u) s& C+ B& D' \8 ]' c, L: d" @6 d8 O* p. u. P8 a7 Y* E* A
set ymax 1.01 ]2 ^, o! ~' ]8 W
1 V$ ]! N% w: b8 |clear-all-plots
( W$ T: y% r6 W) _4 F; v
7 o9 {; s- C: J7 M8 H' Isetup-plot1
9 u* n1 g f$ d; r& z w& H
: y8 B. B' y( u2 m2 h1 n C. u: A" Psetup-plot2; H v I9 F7 X. T
1 _" X* C, w. b! A* U8 p+ Ssetup-plot3) J7 a2 e$ ^! n. Y& N; C9 ~ R
end% Y5 R# N; [- T7 g* W
- d/ O( \2 Q% z; n5 h3 W1 ^' |;;run time procedures, f8 G) W, }+ a X# Z% R
& t% M/ Z0 T, [7 ato go" A9 x. X2 t+ F$ ]6 I7 w/ D; ?/ x) \# u
* }* u3 j7 r: s- i8 A! b; ?
ask turtles [do-business]
- g/ x+ ~- U0 Zend% i- m) p6 v! o& P7 \* v. i
3 z) e" W& @2 L$ o& {, dto do-business + {5 d8 o3 v# ]; h8 r _
# O* F0 R3 {! P- p6 S" @
2 u$ M; `5 R+ i1 w3 P2 F; B+ }rt random 360
+ i$ G. I( L( n' k. f2 t6 f
9 S; R- j2 a' ?# K; Cfd 1
. A7 g' X' E: t3 | ~2 S
6 F) m( M! o5 n2 K nifelse(other turtles-here != nobody)[
0 d* b8 q& n9 {1 e, } B3 G4 f5 H% c/ n# o6 V& d% d* L7 P9 K
set customer one-of other turtles-here
/ Q, h1 F5 a2 U c! `) a- s" U+ V& i. N
;; set [customer] of customer myself" e' R) ~. I9 n: C
% x: O$ G; |0 @1 Gset [trade-record-one] of self item (([who] of customer) - 1)
- T' m. t( L% h# ^[trade-record-all]of self
. d1 f+ l( C5 S9 A;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
! T1 J' w# }+ a7 k/ Y1 r3 v( z
/ ~4 M2 I+ s# e6 m$ N7 ^7 z. Gset [trade-record-one] of customer item (([who] of self) - 1)
0 a y! \5 h* E; \2 L[trade-record-all]of customer
) M$ |2 e |' z* q* @+ b6 m, B. s) p( k% i9 ^- `
set [trade-record-one-len] of self length [trade-record-one] of self( \! v R" f& `4 N
; a3 K( @# f8 S: B. A% Qset trade-record-current( list (timer) (random money-upper-limit))
: e0 `1 m1 M( u3 [7 ?7 U5 T/ x7 V& P; F! Z
8 P8 l; @/ K+ F0 t, h: m% {$ K# Hask self [do-trust]
$ W% j- R8 u' I/ N, ~2 f( {; g;;先求i对j的信任度# y p j0 J3 i8 z% [6 a
) v) r" ^# @2 X
if ([trust-ok] of self)
0 p) A" o% S2 J5 k$ N* ~;;根据i对j的信任度来决定是否与j进行交易[
" c6 v- y$ H5 s7 z: qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" i( J+ \% H# C1 `1 c
/ _$ P9 I6 c2 P
[& N# r; j# x! i k" J' [; E
- Y0 D' l6 u8 c6 Z3 m$ D1 hdo-trade ~& ?# w( A2 |8 {7 V
% t) L8 k9 `; d) Zupdate-credibility-ijl
4 ~5 D$ D5 @2 J9 i6 X, V5 |4 E7 _+ b# y5 s l! M: P, s+ z
update-credibility-list
0 N: K1 X0 I: s$ c2 e1 `
& t8 P) K6 @2 j$ j( A y2 ~( B; F' h$ x4 Y2 i5 u! S
update-global-reputation-list' j" \( |8 W" |- d( s6 y A* W; O
( r. Q2 x6 r8 g9 ^; A. b$ h6 D
poll-class
; j. i8 V% a' v" t3 n2 f+ _; W
get-color) ~1 D. d# O0 O; @
: c8 w# s- x% }$ ~7 X7 I% f5 Z& ^
]]3 ~( U8 J! H0 M, z. ~# R6 w
# t8 a" z# b0 r+ ~/ o' t% T;;如果所得的信任度满足条件,则进行交易
! _# B; g% o6 t D7 z/ V' U2 D$ z# ?( u
[
9 n7 a& p5 N0 t( t5 M, [9 M
1 d8 c/ I* U) d2 A- c$ zrt random 360
6 t$ K5 w" E, T' y Y. U) b) s0 c! T! D
* \! x( a7 W# i. |& R+ hfd 1
4 i* |2 d6 h0 x) l: l% \4 c: F2 E3 D3 k3 Z7 d4 j) }
]" x7 m- J: c% @& T
7 G0 o1 ]" o, S
end
" W2 V& t7 I: e& v& ]! C3 [( t9 Z4 f% Y, V' q, p
to do-trust
& }0 {& W" }' X/ wset trust-ok False" {: E$ B/ U& ` U. J0 m
7 S5 o B/ T) @% H
, b$ s# \5 ^0 A" {let max-trade-times 0
$ T- _/ i/ p' `. g4 G, R" ^foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; m b5 p% Q# H' Q3 E7 {" |
let max-trade-money 0
" O2 c& `3 `$ gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( h+ j' s' ^* _/ H5 @5 h! r4 ]
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& P! Q. D# x, Q3 X" c' x
5 w$ Z2 J% U( b+ ?$ [2 E% }2 L1 m/ O) D/ G( a: K1 Z* b
get-global-proportion
* p1 k& v* o+ Flet trust-value
- p$ J; \* Z9 F; dlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)% N" A! f: }& ]3 h% L0 X
if(trust-value > trade-trust-value)
) T. B7 j% N. D& P[set trust-ok true]
+ Z6 X5 i( R6 f) H* \/ }9 hend
1 y- b* n7 V n: o
$ `" S& ]* P8 R7 A6 kto get-global-proportion
8 _2 E+ u" U( |ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- @9 C6 r7 Q' | N[set global-proportion 0]$ W0 V, p; Q7 \) U3 s
[let i 01 u# M0 ^/ o+ P
let sum-money 0
; Q" X/ [* @9 u+ r8 xwhile[ i < people]
& C# }: x: K2 R[; P8 f$ I5 b1 ?2 ?6 V8 Q( ]
if( length (item i
9 \# a( g$ [+ |& H3 x' `[trade-record-all] of customer) > 3 )
+ b' ?" A9 H: K' ]6 l) o& {[) N/ u4 s5 y. i, ?
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 d q: a+ o: X# }9 Q W. u- V T]
( y3 a2 a3 A3 x# V1 J# }& f: k$ j]: b! {* w4 z7 s1 A& H5 L8 V" F6 p
let j 0
U- H7 O, B& A# t$ k5 olet note 09 d$ z7 n: O# s0 g% B
while[ j < people]$ z: v- v. z" H
[& X6 ~/ w; P$ I! |0 Y% ]4 Z" C4 o
if( length (item i6 P- k* E7 E+ `% n' [9 w
[trade-record-all] of customer) > 3 )
( q9 C0 }* I) r9 \# [[. e3 O3 F; [& `" C. `
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 t' B4 e0 x8 s) Q2 v- s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 G4 g P7 W% A3 w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' l* C; g ]% q }0 E) s]
1 Z" |+ i3 Y3 Q9 W+ M+ b' {]
6 }& }$ o0 l7 O5 h# {4 b4 Tset global-proportion note( d3 I0 a, A: S$ k, Z: i7 [
]
/ V& I @& c7 `end* n/ B; \, I9 n8 s% \" }: Y' x1 l
0 X$ M# `9 {5 Z9 _0 {, L& Qto do-trade6 U% M Y2 y+ o
;;这个过程实际上是给双方作出评价的过程
5 s! ^$ \. Z/ D6 w# b; U) Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 @; U% K3 |( p Q' c5 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ H$ @$ u( N: b+ T+ D8 C
set trade-record-current lput(timer) trade-record-current
: ~/ d7 x6 x& x* j* G+ W$ Y8 b8 l; Y;;评价时间1 b( E6 C& Z4 Y
ask myself [
) S% H8 e' K: L7 v8 P# t/ I( n9 Nupdate-local-reputation0 @1 C- ^ K0 U. t
set trade-record-current lput([local-reputation] of myself) trade-record-current, F4 w L5 b% o% T5 v8 a
]
* K" J9 d8 P" H* Q% j. eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' q( h7 z1 K# E% m! h- G2 r. |+ [
;;将此次交易的记录加入到trade-record-one中$ T" h" h" c x3 [
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! h& f9 {9 S/ L& t8 S2 T
let note (item 2 trade-record-current )
* f( A4 o- t2 {4 a6 jset trade-record-current. m9 H' f) I+ ?+ ]
(replace-item 2 trade-record-current (item 3 trade-record-current)): {) B/ { H& \5 F
set trade-record-current% v X# E1 n H4 U& Y. Y
(replace-item 3 trade-record-current note)
) w. W9 F& K4 F/ A4 m' z5 ^+ V0 j2 _4 D8 B4 J
! {1 p; S- s' g2 J- o, task customer [3 V9 }# y" s T# g- x
update-local-reputation, ?' ?+ j' n$ E* m
set trade-record-current
1 Z8 U" i3 A( F- ](replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 ]6 E. m N4 E% E. s6 V+ v]' ]6 R7 n6 h( ^$ [0 x/ S% q
. V0 M& Q; a1 D/ J$ P3 @- `
9 o, H2 ?7 A- J2 u, [
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 O7 x( T% R/ w
9 |6 M+ k; ^, ?1 S% `set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, ~& w" g6 n: O! K+ I Q;;将此次交易的记录加入到customer的trade-record-all中! {/ O% R. A" |7 k5 D8 z, y. B
end4 }% O( D( s E# A* G. I4 M+ I
, J/ ^% s3 [7 e) n4 ~; qto update-local-reputation+ @# L% w; J, ~0 t: X' X
set [trade-record-one-len] of myself length [trade-record-one] of myself
; Z4 Z; v" k0 ~/ i e: [" a c
7 R; f( @ g" s/ W! j! g4 H3 m' T; C& U
;;if [trade-record-one-len] of myself > 3 , s S6 S- \. ~5 f+ d$ ]
update-neighbor-total; i2 A0 o5 Z9 `$ I
;;更新邻居节点的数目,在此进行4 i1 E1 F Y O) X( U) [
let i 3
* r; ]" T! ~ f8 P" i- mlet sum-time 03 U( i' i$ r6 f7 W
while[i < [trade-record-one-len] of myself]4 J4 E+ C, R4 |
[
. h7 |' o1 q. r0 C! B0 Uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% M/ p) g# l" lset i
- e- Z, S5 N& M, F& o1 E/ L6 R( i + 1); B6 J7 u4 O6 J9 }9 u/ E
]
7 J9 K* A- V9 v8 a& w$ U- Q* Dlet j 33 `0 {/ d' ~3 e
let sum-money 0# m, v! C0 B4 _1 @% j, v% m/ \; u
while[j < [trade-record-one-len] of myself]
1 }0 [8 M! U/ V/ A* n& E1 a7 x& d[- k6 j( ]9 Z* |; c
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)
/ ]& o( k* e) {! bset j
) m- _4 X. s* D( j + 1)# G$ o6 \. C) K$ O" m6 \
]
7 {) F2 L9 f6 P! \let k 3& K+ H; J q1 j9 q: w3 J
let power 0
4 [7 s9 L$ G6 y: N1 b) f( elet local 0; Z3 h2 f5 x, g4 i
while [k <[trade-record-one-len] of myself]. A6 Q9 r8 j/ b8 _5 ]8 [1 \5 g
[
3 ?; u0 c& _* P1 Y3 d8 j6 b' f" ~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)
) ^ r7 P: A/ ? {: ]& p/ C. wset k (k + 1)- F( A9 o: C# e3 e1 g
]9 w- [2 I8 C2 a5 x8 m" M
set [local-reputation] of myself (local)- P" N4 K I; V- b) c
end
# k6 e |7 i$ M# L, b, [ G$ M1 N& D; m
to update-neighbor-total
1 y' z2 K) [2 D* M% U `& G1 h1 n3 `
* S- P& s2 @6 y8 c; K. Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. b/ c4 j; O, m2 E% l# x3 Q. b+ Y% c/ I6 w9 V5 ~
$ H8 Z7 g+ p+ Z2 I/ b: ^end9 C( @% b3 G' Q. j/ c$ E ]3 J0 P$ o' Y
5 Z$ o* L9 n! W+ x- U
to update-credibility-ijl
. ^, V' T* @+ v0 | m; {
" e! o6 j$ M' e4 P. s3 W: w$ M; F;;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。/ n/ ]/ w4 H2 P0 X
let l 0
6 V0 @+ H# v$ Dwhile[ l < people ]
2 \% u; s5 m- l( n. G;;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
; M; _) b% @1 ?1 J) s[# f; j& z/ D5 J! N* g1 U% _7 s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): I: U2 M5 c: ]. A$ X
if (trade-record-one-j-l-len > 3)
# f: N' Z) a5 [' f* T, p[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
3 p8 ^) h0 W( Klet i 3$ }. v0 y Z1 K% X5 s/ Z7 }
let sum-time 0$ ?( ~4 V$ y1 f: e* s# u
while[i < trade-record-one-len]
( D0 T. B1 G) v: c, X- ^5 G[
* B1 ^- q5 p6 b4 `/ R; Zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; Q% P0 p6 y4 k; Jset i
( a" D+ Y% F8 {, m( i + 1); B6 R5 I( S3 I' z. o
]! ~" h% l3 d6 A W7 {2 r
let credibility-i-j-l 0
2 e: y) X" |2 A) \8 {;;i评价(j对jl的评价)
# }! t, ?; X9 h9 ]0 C% Olet j 3
" t2 H! m" m2 A% Slet k 4/ _) f) L6 E/ H4 N& N: a5 s
while[j < trade-record-one-len]' E7 h/ g7 e2 J' W
[/ V9 K, ?/ [ S3 U0 I; r2 s
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4 Y& g* N; c: Q/ H, \
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)
0 l, }% d; W8 q. f: Iset j
' G6 p+ N8 o! U" c1 ?) h9 j( j + 1)
. u9 w. h9 T# @) p& I8 p4 o]
0 Y4 Z( R, {' y4 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 ))" s$ B( J" }: E% v
" I: u) M% u/ D# X
/ a! G5 J S( V( k- j4 p% @* B8 Plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- ~* h; V: f2 ~ R7 }5 c# E;;及时更新i对l的评价质量的评价
. u$ ]- ^! n- m4 C4 d% Y) o) Oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) _& O1 b! u- y1 mset l (l + 1)
( i, T; I5 u( o: ^/ u: b]
- W+ k7 I) ^" h, T8 _. nend
6 Q( Y2 g5 I0 Z1 C- R2 i/ l3 B. J$ s: w9 z. a! K8 H
to update-credibility-list
) ?* z4 }4 Y% |/ L% U- v; i/ X$ dlet i 0, V. X; X1 Z3 n0 y% _+ W5 O
while[i < people]
# [5 y; k3 p4 [+ g1 m, o[- i9 u% H l E2 x2 p' T+ D; `
let j 00 u. C6 ^- g6 U* T
let note 0# I1 M) R4 h8 {, u/ v1 k* p
let k 0( |5 h. N6 D$ G4 g9 D
;;计作出过评价的邻居节点的数目
: q, g/ w: D, r8 l5 x, Ywhile[j < people]
8 u/ ~: v: V0 R: \4 M[
, B- x, S! Q; L9 Q2 X) ]2 q4 ^/ Fif (item j( [credibility] of turtle (i + 1)) != -1)9 r! L8 p( C. \* W$ q9 s! d
;;判断是否给本turtle的评价质量做出过评价的节点
c& z( x3 M2 o8 i3 V' i[set note (note + item j ([credibility]of turtle (i + 1)))7 \. M3 E3 v: B
;;*(exp (-(people - 2)))/(people - 2))]
) T' _1 K* y# b/ T6 d# Zset k (k + 1)
$ A2 T: o6 _% u' c8 k6 a8 G. @% u]
- r2 Q* T- i* T m! ~3 c8 P) M, a" Bset j (j + 1): D G/ T2 ~/ o$ F# Z) p) G/ \ \; d
]
! C' V5 h v4 S0 ?set note (note *(exp (- (1 / k)))/ k)
) C7 E T+ _. \/ S, V, gset credibility-list (replace-item i credibility-list note)
5 U" w0 ` `; R' T9 ~5 k& Z tset i (i + 1)# X3 c' S1 q1 J( { X
]
7 H6 C" J: y4 S4 u1 E+ B" w+ Send
/ m$ P$ I4 k+ x# M. i
[8 b }+ ] U2 w# `# w w) ]to update-global-reputation-list
f: A) z# v9 W4 Z8 L0 Slet j 0$ f5 a7 E$ N8 L$ K, [, _
while[j < people]
& s% J3 |& O! F0 v& J) D[
: N Q! p, h, s* Q w3 Plet new 0
+ X* v9 o- U: q% v/ u. P;;暂存新的一个全局声誉 n" m, e8 ~# w; Z
let i 0
; k; W# `5 b( s* flet sum-money 09 v9 [" e' _& N6 w* O s( {: B+ T/ |
let credibility-money 0
/ Z& ~6 q _* H) ~/ N; {while [i < people] F7 F" O; z# h9 j( w k9 \
[: ?6 Q7 R) r9 V7 x9 ^2 t' h8 m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 R. R. X s, j8 y) lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" j1 d/ @4 Y1 `- {6 m3 Nset i (i + 1)9 Z: k" L! X9 G+ U% K( s1 R7 c
]$ b9 j, j: n% b8 j' t: f0 u A
let k 0
' k: c4 ]: X9 W1 { ^9 Blet new1 0- M; i4 m9 n7 R Z- d3 C
while [k < people]
8 F6 Z' f/ Y3 x0 B4 p[- S. B! v$ N# O3 K1 g- u
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)
/ D5 u# x# |3 \4 w2 g- xset k (k + 1)
5 _% b. C, ?0 M0 Q]
5 E9 i3 ^8 }8 [& h M" Yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : b* T3 {, n% s! C' R& [! M! E5 ]* h
set global-reputation-list (replace-item j global-reputation-list new)( G3 I+ s+ V" d3 a9 {8 }5 ?
set j (j + 1)
1 {8 ~, _# J d2 S& ~7 l]
+ E$ M' `5 a+ `; s8 ^end i1 w% @2 B2 B0 w# w& [$ d
% T+ v4 b" g; w5 i( p
, Q- q$ p) D ?
4 ?6 N J, l/ @- G! i6 oto get-color
; p# ^ X' |: k: e' G/ Z6 t, H5 T0 c5 P j. t* d7 Q* l
set color blue6 o0 C; W9 @4 h+ {" y: t3 ?
end
1 t; W* g- Y# I/ W! \( k+ b/ b R; w
) V! F: \0 _* i s6 a% Fto poll-class
! u0 u* X' }, ~/ send
; z- o" u" Z; t. B ]" z
" U) p! V1 i; q& ^/ Y2 T( L& _to setup-plot1
9 X% Q/ ~& s g$ T b( C- o
& s% D S0 a- r& ^set-current-plot "Trends-of-Local-reputation"5 q( V: L; G, w/ U
- |( v+ A! @, K- g- Q0 s6 eset-plot-x-range 0 xmax
' _; X. T1 x. Z
6 O+ k- S3 ~- p) k8 q" Q3 X4 Vset-plot-y-range 0.0 ymax! o6 r6 x% B: A9 [+ J$ K) i. c( C* D
end
( y1 s' _+ w0 _ O+ Q' o7 B+ v, j9 Q9 d8 Q
to setup-plot2
* Z6 j8 o" W3 L1 N7 K! H* l V6 P6 d, Z
set-current-plot "Trends-of-global-reputation"6 n' s/ b) x6 x$ G9 @6 |9 L4 k
# S8 N/ X v! l* X2 X
set-plot-x-range 0 xmax
( C) S2 Y6 R6 k2 h/ u+ ?3 u1 X2 F! v/ S' {) y o4 g- W
set-plot-y-range 0.0 ymax: l0 T2 b3 y3 @2 Q- C/ D
end; f% l' i' Q- W3 |! H5 R
9 B1 x7 _1 s8 r4 j3 O$ s. V' G" ~! gto setup-plot3
8 F, V1 k6 u; K5 K1 L b6 K7 O7 ?3 V5 s! ]: A
set-current-plot "Trends-of-credibility"0 Z, H7 J5 o& a6 U) s2 `& ?: g
( A5 C- Z3 c) E3 x' h
set-plot-x-range 0 xmax0 ?$ J$ s$ `' `: y
! I; N- u( [% J% U$ I1 i/ @( I( \
set-plot-y-range 0.0 ymax) ?# ^' i6 f0 U
end( V# r& q2 ^% y K* { g, Y( U8 N% e& U
, j( e7 h- D. [ J U
to do-plots
1 o4 ~- t3 g' {( Q* u6 X, A( x) Iset-current-plot "Trends-of-Local-reputation"
8 {/ k6 w1 r) t2 l: h# dset-current-plot-pen "Honest service", x8 R, t2 U# Y h9 F* J3 G
end6 ]6 k' \9 e ?6 Z d* r) L
" ^+ [4 z$ h& W+ I[ 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
|