|
|

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9 A0 P% q7 Y4 Q" L; _4 X
globals[
4 K8 P% p* C% Z/ yxmax2 e4 F; m6 F5 s! `
ymax+ u1 C- i o2 }3 ]& x( }; Q/ n# n
global-reputation-list S% {1 p3 }9 {2 i6 M9 {6 ^
9 W2 P; G) V9 o# Q
;;每一个turtle的全局声誉都存在此LIST中
[4 p& J7 n6 S1 zcredibility-list
4 d! ]4 D" G+ w) {0 p, w6 N;;每一个turtle的评价可信度+ N% ]* A' q9 w; ?4 e: [' v( L2 K
honest-service
" @* {2 F: ? S" funhonest-service0 x* X# f' o+ Z0 g& `. o
oscillation+ p% `6 Y" l0 |2 ~( w4 J/ M
rand-dynamic, B6 S3 {9 u% ^/ n+ s
]
0 y3 M+ s. r* r9 B- S2 C P( C0 c4 B) N, _* b9 i7 T% \; ]/ ?
turtles-own[
# W# i+ B. v9 F6 J1 X/ k5 ?trade-record-all* |- V2 d' l9 h G! m
;;a list of lists,由trade-record-one组成 _& C5 H" g) t2 F2 }4 f$ ^, s
trade-record-one3 a, }. \2 z: r5 p/ Z$ H: A
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
6 o, A0 T% W7 E0 y% k; [; S0 `( w
- y8 h; H& Q; v' P;;[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]]" v7 Y# Y' s' ~3 j
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]
2 K( `5 X: Z: jcredibility-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
' ]) z; [6 f3 G9 g* ^" Lneighbor-total
# ^; E- ?' z. y, b;;记录该turtle的邻居节点的数目
# Z: F% C( C! w, k" i) ~; f& Gtrade-time9 x; M0 {( i* }4 J6 U
;;当前发生交易的turtle的交易时间& Y2 C# V2 d/ p/ I, O% @& L( _$ M
appraise-give
. i0 [5 }/ d2 U' Y! ]0 M8 T R;;当前发生交易时给出的评价
4 `* x* j+ L1 e8 Aappraise-receive
6 `9 E" m5 x) v- x: @" R i9 B' t: k;;当前发生交易时收到的评价1 b6 H/ |5 A$ W' y9 X& L
appraise-time7 O; G& O0 F0 f) A9 O/ Z
;;当前发生交易时的评价时间
- T' ~, E- Q4 V3 T5 j6 xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
- v" I" V/ \6 g) F. x) u5 ~2 Rtrade-times-total* k7 T( ~0 d, {2 R8 p
;;与当前turtle的交易总次数
+ J* Z/ i, z0 y2 F' Y' vtrade-money-total, s- l3 b1 b& P8 c/ N7 X
;;与当前turtle的交易总金额
, G+ C: H* x1 }7 K P+ olocal-reputation* C- \: A+ S/ t% R3 O& e+ ?9 n
global-reputation) e/ a V4 w( S \* C
credibility; D' H5 p( t1 w/ }6 \
;;评价可信度,每次交易后都需要更新2 N+ i, k( L' }" Y
credibility-all) Z6 s" `- J( q/ a/ U
;;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; ^ @: g( |/ U/ |4 G8 f
~3 K5 M' R2 h;;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0.53 ~* d, E1 z, }3 @- A2 {
credibility-one0 h$ ?" X j/ z# ^1 V
;;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3 q; {" t4 h3 h
global-proportion
$ B5 P) u8 C% C' Zcustomer
2 f: L" t+ `( j, W$ y$ h+ i! tcustomer-no
4 e$ r' ^& z! @- a: \trust-ok: V/ Q* T! N3 o
trade-record-one-len;;trade-record-one的长度
4 K0 p/ T- }) H5 y& k% e]$ D: O$ _+ B. @$ D" [% A
3 {9 X$ l/ p5 f6 t4 O( B
;;setup procedure
( `3 n- a7 r# |% h6 f, Z$ b- v" `3 u; ]9 _+ g- f
to setup# X& _7 x# Z, o6 D/ ?& h/ B J7 ^3 e
. k& m) z; u% W- P9 e2 j i3 mca
) h" }. f5 c* Q6 q, r: X) T6 V
# `2 D- Q8 h) Y, U6 uinitialize-settings) a" H" c& P8 ^! V% z; \- n7 n
4 C4 f2 B: `0 s1 Z& C4 D# P& r
crt people [setup-turtles]
# ]5 ~% U: v+ L6 R* _: c0 L3 `" @3 U- J
reset-timer
& a% c7 g2 t* q! I" V/ }; V/ H9 i3 B, k. m, }7 K5 @" S
poll-class" n) m, _9 b2 u: C/ w Y8 ]5 J
# z: m0 U* c5 Q$ F# O
setup-plots
- L5 s! D" o& H; a
4 f7 q ^) _) \# F: R2 R) W$ Edo-plots# h# ]) }, z# s) q7 ]
end
' @: |, A4 y) K$ F6 e% [& x+ n- ]* `: \2 E% x
to initialize-settings+ g2 J0 l. { p" B7 ]
/ C8 d3 X) J8 [9 E% [( ]set global-reputation-list []
" V/ k! O$ d, ?' k" _# c& `: \. }* a- ?
set credibility-list n-values people [0.5]1 ^' h6 G: ?6 [& r6 O$ I
0 a1 I: O/ g$ f
set honest-service 0
) U8 d" J: v7 y" U. J% I7 v0 b' D" B9 S3 D- r( o
set unhonest-service 0( y; u7 d4 x2 h5 {1 \' p4 X9 n8 \
6 x( ^- @3 }4 j3 Oset oscillation 07 u4 |/ I1 p. A, l# \1 d
4 {+ o, R7 E9 C) {6 b5 g! b
set rand-dynamic 08 u: |1 F! O5 o) p( o; P* w3 Y
end
# Z0 G5 t/ q5 Y( g) y8 w E/ e8 u! r1 q
to setup-turtles
! x( U" n) |9 r- G1 jset shape "person"2 g' H- M8 z! @" b6 }
setxy random-xcor random-ycor# Y* q+ O9 F. e& Y% J+ \
set trade-record-one []
0 j6 P1 ]2 Q" [$ ^4 E7 {5 S- u$ f9 E% f: C5 O7 z+ K2 a
set trade-record-all n-values people [(list (? + 1) 0 0)]
- C; j" ?. w3 A( @# u, s* I# {7 h& `& {# z% r
set trade-record-current []( I/ [( W) H' y8 i6 g- C5 h) J }
set credibility-receive []( `$ h2 @8 N% D9 B) Y: i
set local-reputation 0.51 t( ^0 W+ |6 d, X- k$ T
set neighbor-total 0* H" r* l$ n R
set trade-times-total 0
; L9 h5 M& C5 u, `' R1 y; v) s" Zset trade-money-total 02 j. W5 |7 Y# F; | K( G( C
set customer nobody
( B g) r/ D" x' w- s+ rset credibility-all n-values people [creat-credibility]
# g$ {5 G6 o, s+ @$ N- q( S7 o* yset credibility n-values people [-1]' @6 c" L f0 a" W @7 I
get-color% K: J5 Z& k! C8 v6 w$ |0 W" S# r
; `! U1 M8 p8 v4 @/ }. Send
: h" e: H3 e5 T0 n
$ ?1 |1 |; W) H' }to-report creat-credibility: m1 u. g0 V, F( ~1 U6 H! N
report n-values people [0.5]
2 K/ |8 H8 q8 D7 kend
- e. A( S* @, m! ^9 d$ S7 {- b {; Q' v+ } X
to setup-plots
5 h7 f* |3 ^9 h- N
& Z7 k. Q& r" a6 P5 x1 ], f k/ Hset xmax 30+ w6 } F6 \9 G; F
& A }4 I7 L, c7 P+ t8 lset ymax 1.0% M+ _; I( f8 x0 ^+ [8 E& S: o4 c
, I) u0 l3 C4 G ?clear-all-plots7 W ~; S6 B# Z& [2 B3 @
- f+ y7 q) O- E% ]9 G
setup-plot19 M5 Y5 t1 z: w3 Z
/ |6 A' h4 E* _setup-plot2+ H. Q2 s% \- U9 C4 b( E7 }/ d
$ h% |5 ^, Q, c8 d7 L7 A+ dsetup-plot3- ~& f$ N8 W$ |. S, z
end
- f' o4 P. o% l1 m1 F8 j9 U p+ y( [! ^" {
;;run time procedures, K W+ g! q' a4 K, B5 v* Y% Y
6 `; a3 M. t% u( Tto go
* I0 l8 S( ]; {$ N
/ i( I) s8 }8 c6 y- K6 [. Iask turtles [do-business]- [; e9 w# L6 E2 K, Y* M
end/ Z0 \& z$ @% l, k1 Q
+ ~1 H* g: ~) C
to do-business
2 n- n$ L$ t" }( g9 `/ ?: K- C6 Z0 g# N2 T$ I: Q* J; ]3 }
* Y j. U2 u: m) n9 O, J$ f0 p6 _0 D
rt random 3606 a/ R' l* U# O9 v0 U
- Q6 G5 M6 g7 y; Pfd 1
8 E) l" y5 }- I. K. Q
$ f3 ]+ U9 N8 Vifelse(other turtles-here != nobody)[" E3 G' _" g" \; J5 P1 |2 m
- t4 S( g! [9 R; Z7 Eset customer one-of other turtles-here
% ?' H2 i, l) L. i& x; A: t
4 n) X$ j4 F4 d;; set [customer] of customer myself
; m! T3 _1 v4 X4 Z6 {% L8 R+ [5 y9 A2 a' F1 ~6 I
set [trade-record-one] of self item (([who] of customer) - 1)2 U/ o( X* t4 G+ c- s+ D6 j/ J
[trade-record-all]of self
4 }7 R% r" [7 ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
! M O9 h7 O" V+ [! L7 f
; m; A9 u4 P% M V, W8 u, I& Eset [trade-record-one] of customer item (([who] of self) - 1)2 _/ J2 c. l' G3 x
[trade-record-all]of customer
) n6 l; j* @ q3 K, @% b7 M
9 d1 g( R- W& `% rset [trade-record-one-len] of self length [trade-record-one] of self6 ~0 _% l) q8 i3 `
" l0 b' U1 K) w$ n. b, kset trade-record-current( list (timer) (random money-upper-limit))
1 ^- ]) e$ A* w3 ?6 h, l' k5 }/ C# A1 W
ask self [do-trust]4 Q3 B' U R1 m" H: _6 K0 ~. C6 M
;;先求i对j的信任度
9 O% k3 Q1 u& \$ K# c$ X: @3 o, R0 T2 b4 p/ Y: M% K
if ([trust-ok] of self)/ g- W" ]8 K" s# s
;;根据i对j的信任度来决定是否与j进行交易[
; T9 k; d0 U1 \% zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. o9 d& r( G/ A; n( }! Y
" ]8 j8 G' @5 w) I[
) @' u7 T: D* i7 j9 H7 ~* T2 M. v. A6 R: b5 k
do-trade% @) r/ ?( k. U. r( G
! F6 k3 ?! i5 D) O2 a9 l
update-credibility-ijl
/ o: t/ S% d3 V* {: F7 W0 I5 T5 t" Q4 F8 f
update-credibility-list# S. S) u* O9 u! z) ?
+ a4 _- h: q. K' T9 U0 ?" ?, u% G3 F8 V6 D+ U* Z% }
update-global-reputation-list1 s* Y3 T- k0 u u
0 n5 k7 k _2 T2 B2 ]6 A& npoll-class1 Z) M4 x8 X" y) a
$ B* E$ a. C& e+ U; H
get-color
5 |5 W3 v0 M p: e7 B) G6 Z4 q( M% v3 K' W5 e. Z/ y" ^# t
]]
4 r. s8 |8 F7 w( K6 c9 `; x) i
0 ?; X% W& x& T) s2 T;;如果所得的信任度满足条件,则进行交易
8 n' z+ z! V& r8 G% p. o4 \& {' i$ x! l5 `' e3 Q$ s
[
: ?+ e, \/ L \1 | v: D7 W+ Q3 G' T4 l- Q" o- N0 _: D, F
rt random 360
3 i# u% v F% Y* Z0 i# a6 D" ~- v6 ~
fd 1
9 y2 _: ?' d* C/ ~, ~3 K0 B- H1 Z8 Q6 E# m. x4 g, p
]
, T( A1 i' M0 ^; @1 R* E) Z Z ~2 o8 A5 p
end3 F( @7 T1 j! e$ g7 A E+ S. R
) R8 c9 g( D, n
to do-trust
5 g/ c- v0 f" {8 Y3 f1 y5 ^set trust-ok False$ f# S- Z' {3 g% \
0 p% S6 O3 L5 n/ Z4 c
: _3 q" ~2 _0 J7 s$ R0 y% D% b+ u8 \let max-trade-times 0& }6 L" c$ X+ L$ d9 X
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: E S# c$ |# A, n, H$ d; F
let max-trade-money 0& C2 q- e: @" E# A# ]% E' p) J
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 S' B* I5 z0 H! {& B0 \, _
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' Y% ?( N7 R) n2 p6 i! I$ K
" ]' R( z0 G% a; Z ` N9 \
: R- n5 u4 ~8 ^8 |
get-global-proportion
3 p: E9 c$ i, |' }let trust-value
+ T0 G+ [# ]( K& K9 D9 {2 Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)) b0 E5 [7 O! l( k
if(trust-value > trade-trust-value)+ V5 B, {2 ]' F" |
[set trust-ok true]# Q7 I! P: r: f# _- A
end1 Q5 Q0 J/ O) i% K, s1 I8 [; x
* v/ Z0 o, U! W0 x7 s* kto get-global-proportion# I. X" ~7 N; k* w1 u
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' s4 x- V1 {* n7 `" d
[set global-proportion 0]
7 r+ x5 W( d2 X$ r9 R$ @[let i 09 t6 P+ O# W+ j: D
let sum-money 00 C [0 L1 w( C" v9 z4 I3 ]
while[ i < people], u6 q( a l1 d; a# L$ `+ H3 L
[
) _2 k# Z2 |. P! ~if( length (item i
2 n% X: y9 S# @( [7 g. |- c! @[trade-record-all] of customer) > 3 )7 ?/ C3 G) P* w9 y' w
[/ \2 K0 |6 G- N
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 ~' {0 M' `9 ]* I. q]
6 R4 [( h: Q! ~. e6 n3 ]- g! B# p! \]! h1 Y* z# z3 J* w5 m4 p
let j 0
+ k* o9 a& [ I0 |& Jlet note 0, Q7 T, j4 i' _+ p! g
while[ j < people]; ]( p2 F6 k& L
[2 G$ l. C" b4 W8 O6 R
if( length (item i
J) C/ _1 |* E9 U+ ~# O[trade-record-all] of customer) > 3 )
: _; U% A6 Y, H0 Y. B" Z[- x2 g2 E5 M8 E/ N
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ s* L! x& W3 ~2 ~7 j[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% }% N7 M. s. n/ O2 r[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 x3 C( [9 C( w/ w& V
]- C% n6 c' E6 u5 C( ?! ?/ k1 j
]
+ z: [8 n0 q3 d m- K! Wset global-proportion note7 S8 E$ P+ w. e G
]7 a% F0 ~ [4 y: b
end
& V: u5 e3 e! E" n4 a4 D( ~
! x& [# C4 c: \8 A! b9 W) o2 Wto do-trade* _. I0 ~( d4 [- P8 J$ A! R! ^
;;这个过程实际上是给双方作出评价的过程% ?% C8 E/ I3 [6 E; Z. R2 |6 t1 {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 g/ O3 k% q* _4 h8 I7 xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 A' D, Z$ @2 t$ V) V# |
set trade-record-current lput(timer) trade-record-current5 t* K P8 X; m7 F' ~7 ^ Y
;;评价时间
+ W h! d5 D9 Z. o4 V' H2 Kask myself [0 \# o$ z' F( [7 n0 {
update-local-reputation) `( b; N% u8 w4 N4 `/ t; [
set trade-record-current lput([local-reputation] of myself) trade-record-current, M( R" n/ O, F0 n# J3 ~5 A
]
9 \% W1 D: E0 z' n3 Cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# B, o% [" g% g, Y% };;将此次交易的记录加入到trade-record-one中2 e( E5 Z' M0 m5 O/ d# v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 U# l0 G: C1 T9 n* k/ v& I
let note (item 2 trade-record-current )
% o7 u/ d1 T* j8 Zset trade-record-current8 _4 h h0 v/ O0 ^, s+ R' ?
(replace-item 2 trade-record-current (item 3 trade-record-current))( H% F$ @8 K0 m m7 U
set trade-record-current2 L2 c" _6 S, P
(replace-item 3 trade-record-current note)! O* J- f1 J; l
, k; c; X8 Z; s/ g- u }% o
3 I8 {3 b1 z+ e8 U/ n9 l8 o* M7 Sask customer [) E& X2 i( p2 ]! d! m* K
update-local-reputation- Q2 y& t! Z5 J6 q+ H: i; l
set trade-record-current
$ |4 l8 B' g9 I! S+ ](replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, A; g6 z I& h5 l/ x2 M] j/ l+ S* N# Y) z
1 j, B/ I5 a6 t% P& |" L
7 t* j/ r e0 k! y& Y" v5 D2 rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; O. P7 X Z. j/ b4 a
3 u: c; F H! Gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% F3 G/ Z4 J H& y$ y- F7 u;;将此次交易的记录加入到customer的trade-record-all中0 ^3 p# l x2 b# H$ O2 S
end" S. u8 B" d6 Q& j) a
. }+ M3 `% G7 g# |9 r
to update-local-reputation, G% l, N# O0 n- o
set [trade-record-one-len] of myself length [trade-record-one] of myself
7 U/ E0 @5 O' p$ J
+ T# L( d: q6 r, O+ F
0 j+ r( Q; U7 h6 o- X8 Z;;if [trade-record-one-len] of myself > 3
- G" a9 K& r; j! A5 C7 Vupdate-neighbor-total
# e0 i4 l* ?4 b$ o7 A# ~' C;;更新邻居节点的数目,在此进行
- ^$ H" H# K qlet i 3
& j* ^" _- p* y) Alet sum-time 0. p0 J1 K, N1 a" l& j: b% }' a8 v- x) O
while[i < [trade-record-one-len] of myself]5 h0 G: c5 X+ n0 C* Z* C
[
8 g/ e! K& V S( Bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 _! ^$ u1 A y3 `: T- E4 zset i& K2 k; _ \% ?- P' O3 q( E
( i + 1), }! ~2 L" j1 n& X
]
# P4 I! S; H% \& f1 G4 elet j 3 l8 `+ z2 f2 \) A7 E
let sum-money 0
' R1 Z, k A2 qwhile[j < [trade-record-one-len] of myself]
8 }9 [' b1 c# ^5 k# J: Z[
4 K/ m' b @" F9 c# c% oset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% e( O. F% J: u$ j7 ~: T- qset j
2 b# Q# _* \' K" \; n% b( j + 1)
3 M) C" T5 R0 w" j" b6 x]
' H1 Q* ?0 @* a- Glet k 33 I1 g3 q6 G# ^
let power 0
; v) y# B* `# ^. n( U' Klet local 0* \$ R f4 ~; s1 m- y+ M/ |
while [k <[trade-record-one-len] of myself]
+ {$ u2 R) G6 l$ a1 m1 y. S[
1 d) ~9 K' E( E. E, lset 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) 5 `" g: E1 x* z3 y; `
set k (k + 1) ^0 e6 Q6 }5 j( u
]* `0 m* I& u9 h+ g
set [local-reputation] of myself (local)/ j) g9 p! k7 L- K7 q
end
2 m* }$ \4 ?' q, Y$ n7 B2 {; x9 B3 g, Y0 Q7 y) ]; k
to update-neighbor-total, o4 w, z5 L& r. }
, ]. R# F# q& T9 h
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 v+ A! P+ s: Z6 r; T& v" m/ ]
* ]/ @: Z* J- F4 I
; ~& j7 J5 d& w2 f1 Q
end
! v% @+ _* {9 D- Y1 A; \' @' l0 S, m. {6 e7 U/ K
to update-credibility-ijl 4 |" p- w' H& Q
4 K S' m! t7 e& P' [- p: x. M+ ~: |3 G
;;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。 A. D1 e# i5 L1 [
let l 0
$ H$ K' G* z, e! {while[ l < people ]9 h( I& y$ a" p5 r
;;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 s+ {! j# C1 z[3 D3 t P1 k! Q% w3 g ^4 Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) q1 r3 p' r6 @$ Z& E, f+ W: H
if (trade-record-one-j-l-len > 3)
" p m7 S" ]: p. O. |6 ~[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
% s# Z/ G0 C! X( m0 t9 Alet i 3
7 p! p2 @6 l, A) ]let sum-time 0
$ Y. n- {; A. D2 R# @while[i < trade-record-one-len]
n- S' U \, |" Y[& c5 q, B+ W. n
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ M" {3 J9 |9 _- n/ Sset i) a# {9 B8 a) X2 s% U/ k1 T
( i + 1)- m/ A0 ?' O Z
]
# x$ p" ?+ c2 H F% K- W6 ^! tlet credibility-i-j-l 0
3 f, T7 L" ]) S0 T# w' E. ^9 d5 ^;;i评价(j对jl的评价)+ p: T/ o1 g' ^1 C2 U1 p
let j 3
, X5 b, }' b! g6 ~% P+ _" s7 flet k 4
9 Q J1 e! M+ j4 ^% A) r% ~7 D+ wwhile[j < trade-record-one-len]. T+ z5 E6 [1 H0 Y _+ l0 [
[. e6 P2 k6 ]9 b6 W6 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/ {" B2 g; y+ B7 l" u* z" D- ?/ X+ T
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)
, i$ X' d& W* T+ y7 Hset j4 G- K4 F$ H- m4 X9 T% D; Q( z
( j + 1)7 z# M4 W+ ?+ c9 h
]
$ ?$ R# z* ]8 s* H6 ]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 ))
5 B4 B* t$ P9 u' y0 f* J, M0 S1 f% `' J- ], b9 x# m
( b% f: F w/ F4 t
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 k5 w0 b5 p2 I
;;及时更新i对l的评价质量的评价: F% n6 S S% a% e# V
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( J( G0 l; @. q% L7 Rset l (l + 1)8 i. F0 X- |2 B. \- u- S0 x
]" X/ e3 p: B7 G2 ~ b
end
) ^- h7 h4 J. c; m9 i9 N6 H
0 N |- W2 {4 ^1 Qto update-credibility-list+ l1 B0 O# H) R, h# z2 c
let i 0( E* ]0 o$ ?& o* E$ h, g
while[i < people]! A8 b3 [/ Z6 m# S( v
[! i( l+ ]- A. P2 @' A2 D
let j 0
6 ?1 A- |, q+ Ylet note 04 a- l; ]+ p! A
let k 0* T, I; e, }; n6 ^0 D; y2 K2 w4 O3 \
;;计作出过评价的邻居节点的数目
; w7 L5 R( W2 T& R% Q* S+ [9 Iwhile[j < people]
n# r5 H4 P: y5 e X[
3 g/ S) P0 S+ I; q D2 p: bif (item j( [credibility] of turtle (i + 1)) != -1)
1 R: L* s9 b: h5 _" D7 H6 @;;判断是否给本turtle的评价质量做出过评价的节点9 }$ P; B/ C! h5 `
[set note (note + item j ([credibility]of turtle (i + 1)))
1 d0 d6 d* {, p; |' v( A) t* {;;*(exp (-(people - 2)))/(people - 2))]
1 H. ?7 q6 v6 G7 \- Kset k (k + 1) W* R) `( Z; l( z$ c
]
1 |+ U' K! `% |$ C9 a7 `set j (j + 1)
+ H# A% Q+ }% x]
3 L+ b% ?( _. r; ?, ?set note (note *(exp (- (1 / k)))/ k)
0 A' M9 x* A1 s, d. D& U# h2 A& e1 mset credibility-list (replace-item i credibility-list note) b' A+ h5 t x# i I
set i (i + 1)/ A6 X8 z* }/ g) g
]
0 J" ^ b J% x6 e/ i5 wend8 a$ u0 _& V4 v3 A2 ^
; z- D$ W% w! M4 f- ?9 R; @2 a
to update-global-reputation-list: A5 E$ h2 j5 z/ Z7 I3 J
let j 07 |% A* M, S4 c4 j) x
while[j < people]
% s6 q7 i5 ]! h5 ` {! T[
+ V9 q g- l) g2 blet new 0
6 j% V5 h/ e8 Z;;暂存新的一个全局声誉
1 G: t/ j# O6 |$ o( a3 I+ Q8 Jlet i 0* m, X& i& {% d1 |7 ^3 f0 n
let sum-money 0! O, E' F9 j6 p0 U9 @
let credibility-money 0. f9 w# Z- n: d
while [i < people]- Q( ^' |7 u) t h/ v1 k
[! q" r7 H* e3 [5 d Q& g2 F5 n. g
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 g# t1 {6 f4 y& h$ l) r% [6 B u
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 Y& E+ V+ x& X! H* T& ~ g" _
set i (i + 1)
7 ]( Y+ i2 G& p" a2 n0 c( C0 R3 \]
@4 B# N9 J7 @" i% | v {let k 0
6 ^4 {1 L: V3 b* Y+ c; V, xlet new1 0) \* K( h' A0 a' P3 o
while [k < people]
9 ]. C0 N. z( y( B' s) D) H5 ^[: N' }3 H4 p! a' Q% O
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)
: Q* V. H5 v5 D% T, H d1 vset k (k + 1)
! p- T; S( C, X# q# k1 i% s' u; e]0 k/ @1 X9 M s8 ~' O H
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- O$ S, o8 s1 j9 ^# G+ zset global-reputation-list (replace-item j global-reputation-list new)
9 s1 C( q5 t& L9 x+ J! n, Gset j (j + 1)
& V9 l5 | [5 E& z]
0 ?& t4 W4 k0 l2 `5 [end5 Z/ h h% t8 a7 X
- Y9 v8 q% d4 E8 n) |. D: {5 G3 h, [* x
" Q' C4 H7 A5 J6 R) o. ~to get-color1 x9 U4 E1 K7 A8 Y! N* h
6 T% B6 s8 b4 v3 ?. {' Iset color blue
7 d) n! ?9 H6 Fend
" P" N ~" m, u, p9 A! ]7 J r
8 p/ ^" n/ ?! S& y' `# [to poll-class
9 f' _ E7 ~6 r% h- N0 `2 ^& Xend
" f, s" k/ a/ L- M
" _! t2 s+ Q5 e5 qto setup-plot1
* V- L# F. ^3 b' X3 `/ C- t! E7 d9 y8 _4 y
set-current-plot "Trends-of-Local-reputation"
2 n' i1 f6 W+ p/ K1 v) u
3 b/ u' m$ i7 zset-plot-x-range 0 xmax
4 i# X2 [ f1 ~% C& z, t" v C! G" ^& j: S8 o$ n& c
set-plot-y-range 0.0 ymax7 z/ m k- `# C# k6 K9 q
end
9 @! R* x+ u7 c) h0 i% L5 M" L |& {8 [: G1 y
to setup-plot2) }) {! V/ i3 ], F
2 b4 C$ T- ^/ }2 l ^. L7 w
set-current-plot "Trends-of-global-reputation"
- J! `' V" q+ ]% r9 x$ Y9 v3 }- V( Z) Z. y* ~
set-plot-x-range 0 xmax
7 e& j! c5 `( j" M T+ @
( D! G2 \# v" G& h' b: _set-plot-y-range 0.0 ymax
1 }0 I7 ~. u. mend+ `2 h- N# D, a0 {) G: Z
3 | j4 b0 {0 ~) u7 S% y
to setup-plot3; V P9 G; _4 u
3 i; ]# [7 `* c0 C7 }set-current-plot "Trends-of-credibility"9 x) z6 _7 _1 j. E, J
/ g0 i9 N# W( [- N0 Jset-plot-x-range 0 xmax
( F C. O; f* ^1 t4 \
" c% S: H s9 R$ a |7 x7 ~# Pset-plot-y-range 0.0 ymax
* B- b1 `3 n1 K5 a, A" send
9 J2 K# @' [6 Q2 {
- ?! n T; y( [( E$ x% Ato do-plots2 x! s9 k" c$ n- n" T' }6 Q
set-current-plot "Trends-of-Local-reputation"
5 F2 i5 W# [7 E- i4 Sset-current-plot-pen "Honest service"
' n* ~- r9 H0 r: I1 o6 T- E8 ^end
% C, D+ p# L! p/ a: p# C) M5 V( R5 A6 m- \) L0 }
[ 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
|