|
|

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% i; G, P4 [( e4 k" b
globals[
" g" n4 `, \3 Y/ o& m" rxmax
( ^2 W6 |% z& b& K) ^( Xymax
6 m$ o$ \# D+ m( m" w4 bglobal-reputation-list% h P/ }* q+ i: a& _# G W
2 m& T; i( [( E) [2 J: ?+ S
;;每一个turtle的全局声誉都存在此LIST中0 E; s. K. q+ K! G
credibility-list
7 N3 e% I+ `& Q;;每一个turtle的评价可信度
* R# @4 ]* E" i& R3 |2 x+ R. nhonest-service
" ?% Y8 t2 i% S7 P6 M( uunhonest-service& L. u% e0 O$ k
oscillation5 q; ^: A. U4 @5 |
rand-dynamic" t* n) k+ i0 N) a$ @
]
3 O+ |+ J6 L7 V+ c' F3 F
8 R2 I& t$ I3 e6 T0 eturtles-own[
- `: e+ e2 r: wtrade-record-all$ C4 s3 T* _& v
;;a list of lists,由trade-record-one组成
! Z6 e3 d5 \" y3 M5 D! [trade-record-one
3 `- j; r* j3 `$ y) 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) m/ R" r8 c0 k7 g
' _3 ~* t. x, k' ?/ E;;[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]]9 S! j; C, A0 K4 o% z4 [- ?# h* F9 P
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]
# Y& y3 A$ p' \7 ocredibility-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list5 y) W, ^* A7 |5 Y
neighbor-total5 e9 ^: n9 {3 J1 K9 m! L0 a6 a+ {
;;记录该turtle的邻居节点的数目! s# F2 c; B9 ?; r8 `3 w
trade-time0 ]8 o" ?4 J. y2 V- q
;;当前发生交易的turtle的交易时间
1 }- J! [( l: F! u9 m q6 d( xappraise-give7 Y3 t8 {( Q, @
;;当前发生交易时给出的评价
9 ] n( }2 h dappraise-receive
; d- {! F- _ e, |;;当前发生交易时收到的评价0 X; S: @$ s. L7 _2 r' R
appraise-time( G3 Q9 K: C& y4 B
;;当前发生交易时的评价时间3 ^+ i. i1 B2 l8 x% N2 m
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
W/ t; m( R4 J* I/ w" Y' jtrade-times-total
1 z/ Z2 |+ r' { h5 E0 H( l* K;;与当前turtle的交易总次数
1 f% k) ?( n6 c. d, L6 ztrade-money-total
1 J7 {" _# L5 j1 v3 u;;与当前turtle的交易总金额
/ d/ F" X! i. o+ `( a5 W- o( M4 slocal-reputation
2 I1 D. Q0 ~( u! x8 `7 ?) I1 `global-reputation) Q8 w5 b, @/ D$ }
credibility) n) }# X! Z" ` [$ v
;;评价可信度,每次交易后都需要更新' M; u# x) ^+ ], M7 E/ ]
credibility-all
! X8 o! N9 I" i# ]5 Z: T" b" C# d( W;;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
# r( S0 K* ]6 A8 l# J6 K; y# y) a, c7 Y% 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
+ k8 R5 }" N$ C' _; } [credibility-one8 Y/ }4 G# x- u5 k" s( b; ~
;;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- I* ]5 N& m9 {5 K- K
global-proportion
( |( m; |" x) J" j j) I! Icustomer
$ ^9 w. ^0 G' ]8 z3 W+ Lcustomer-no
7 X; B1 l( l6 { R+ [trust-ok# \2 b& ?; s' h; N) N
trade-record-one-len;;trade-record-one的长度$ C+ f/ H1 f- J; n) l9 W
]4 Q" a: H+ L+ c2 U
$ J, Q& i3 ~/ v+ N- ]
;;setup procedure
' v3 e4 g6 k: G. ?' U8 V t. s
) i" C: B3 c# w vto setup
+ j3 y% I- y; `1 T8 k' {. N* V, N* E9 ]8 ^4 D! m1 F) y6 ?9 \
ca
& f) e `5 O$ B( s8 n* {4 D
+ s! h% Q2 R% }) E- s5 {) Pinitialize-settings" K3 O2 \7 d' B! R* t" F
; }: F# `' Q+ H& |
crt people [setup-turtles]
1 c8 e& n. K" P+ D, X& \7 g# i w, ^& i5 X" {- N% s
reset-timer
$ Q9 p" r- |( I: ?' Q1 T. x) a/ N! K! Y
poll-class0 X( l' b5 T* g& c
# l: R$ q3 l3 G1 V0 g2 c+ \8 K( ~setup-plots6 h8 t* [# r" f
$ q+ V) Z4 }) l0 G/ Sdo-plots
& ^) t9 F; f0 _* P8 m5 Y6 G- X0 d1 Lend3 n% t% k! U% O& J7 w
( Z1 Z" O2 {6 P4 k2 _% L* R
to initialize-settings
8 A% S! D4 I/ J' |1 ]& e; h0 o$ z# C$ r9 O
set global-reputation-list []
; x+ |. w7 K( K9 I- T) a' y4 s4 m( Z5 ]5 w' r- Q/ f
set credibility-list n-values people [0.5]: q# r V4 H2 M u0 m: W
) G ^0 B( D9 V5 q9 p- u( q }2 Dset honest-service 0
9 k i2 h1 n( x% @% V4 U$ u/ X. K3 @! H0 O$ l
set unhonest-service 0
, y* @! v% X$ a6 f8 p
# g! _: ^ U% L5 J5 S5 u& y* p, B( Zset oscillation 0
/ [3 j, h5 u- n
" R# n7 q9 l) S) E0 i( Lset rand-dynamic 0
9 }! @1 A ^* p% @& Pend1 G1 {9 B$ C7 m
5 u X, H, O% n5 nto setup-turtles
1 P0 O4 P$ ^2 L% u$ V1 w, Tset shape "person"- c& c5 j6 u) q5 R, V2 ?! }
setxy random-xcor random-ycor
& {) S5 t* k2 ~) Xset trade-record-one []
1 {. i1 {' ]# z0 K6 n! V: a3 j; E' N- w! Y: f4 A
set trade-record-all n-values people [(list (? + 1) 0 0)]
M! t: k4 |+ i$ d$ j- }- p9 o7 f4 C; Y7 U3 E7 m
set trade-record-current []# ]9 m' u1 U8 y
set credibility-receive []
; C# j3 C% }% U* h" Oset local-reputation 0.58 e, w+ D+ M! `( y
set neighbor-total 0. ?" Q- T. N$ ^
set trade-times-total 0 k; F/ z! c* Q: @3 i$ x0 C7 d
set trade-money-total 0
6 w' U8 F+ C& Iset customer nobody7 A- ^) W! u7 S; Z5 Y
set credibility-all n-values people [creat-credibility]/ V) H- p( |8 K0 Z) R
set credibility n-values people [-1]
- _' B) i% @* |$ h) Xget-color E2 P! d: ^. R. l: S
5 B+ W. i4 j: X3 u2 K# pend a- q: r. X6 ^) L
4 x5 {4 |2 Y3 Y; dto-report creat-credibility6 p- Y8 b) N- m+ x5 l) C. b
report n-values people [0.5]
0 P2 L4 K9 m# B, j+ o$ [0 ?end
; d9 d$ T0 f2 H) X# v0 b6 [$ N" t/ i) f3 I9 c2 N3 a( J
to setup-plots' N( i- h6 w: V
" u; Q9 s2 T" a: bset xmax 306 x# p: Q/ [" \3 Q5 \1 O% B
- o/ I; g, P- H' u2 i
set ymax 1.0
& c% Z8 B( ~. ?, s4 M- j) `5 T0 |7 I& q/ S6 g7 F
clear-all-plots/ I' z" |0 r3 B% q2 E1 S% ?5 Y. F+ D
% O b. Q& T/ ~: J( jsetup-plot10 P3 Z1 Z2 V, A7 E% \
. J2 E6 Z: b8 t% t9 _) |setup-plot2; i3 N/ q, L+ n8 h5 o$ H
" M4 f4 n+ P3 U) C' P8 U
setup-plot3/ V- D' F# C+ `
end! _& _ k# q1 y) z
`4 C" `( y6 J7 f4 t9 O' a6 i+ B;;run time procedures
+ i9 W, l( C) j" ]) m w6 j$ k$ c8 Q2 J" y& Y, k) V
to go
" H6 `4 I. _5 @* G# ]. u6 h- V* y8 \# ]6 Q, `* |( k+ _% k
ask turtles [do-business]
1 f) U" C) ?% S% mend4 \2 I* c- N3 w+ H' B( @) J. v* u
3 G- R R! G+ t! g5 q9 D; p# @! L7 G+ Vto do-business
6 q3 n( {' ]: I' A) c) l6 o
0 Y4 H* L6 [. c& M, A& q, | L8 N. r
3 s) s% h- U# brt random 3609 @7 ^& v9 s/ ]+ J$ x; g
1 \0 h. P9 e4 I" Wfd 1/ p& |+ i& p! L' l6 E
( V9 x& w& T1 j, \, M2 E
ifelse(other turtles-here != nobody)[" I: N3 A$ K+ w! E8 s# L, I
* |5 ]7 K0 A+ G' v$ x' P! z
set customer one-of other turtles-here
8 g4 h& S. X/ l, D2 h
$ S" D$ G% D; {, i* v;; set [customer] of customer myself/ B: ^' N2 {$ `" K5 @
% `; F8 \+ L( D" N1 H" G' w" Rset [trade-record-one] of self item (([who] of customer) - 1)& s2 O( U" R3 ~7 J( X
[trade-record-all]of self
8 D% b! {! X) B;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; ]& Y- z: |6 t" c" X6 J- | l3 X$ w
" I. J" c* L6 `' ^. G/ T/ ~4 |
set [trade-record-one] of customer item (([who] of self) - 1)
7 \/ F/ y! ~3 k5 Z, B[trade-record-all]of customer' ?( a: A5 o# Y& a- A; t
# C1 ?5 S; H- w! q" Fset [trade-record-one-len] of self length [trade-record-one] of self
. j8 s0 P4 G; a* {- a& K
; `3 r4 P# G- b, z: s: H: \; jset trade-record-current( list (timer) (random money-upper-limit))
1 c) ]8 ^) ] j' G5 s. Y. r7 ^
7 E8 B+ Y8 z& t1 u+ Y9 E+ E' Fask self [do-trust]! a0 |7 z0 l n
;;先求i对j的信任度
! W$ d! Z: f3 q3 A7 [" f, a# n% L, w0 ^6 D$ j8 @6 Z
if ([trust-ok] of self); s% W# T& f2 h7 d1 T5 X7 }( R
;;根据i对j的信任度来决定是否与j进行交易[
; E, t" D4 u1 `$ K9 d+ m0 \9 D: pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself B$ j. q% `$ P d& e& G
$ Y8 T" o- y# r( k: [* y[
* _# C0 o/ J2 w; K' \
/ D( ~9 C) p/ ~# W8 W+ n4 b9 L& x4 [$ [do-trade0 g# I5 a& n8 _; a% F/ c
: r% E" u' }4 h, x$ z& Mupdate-credibility-ijl
) p1 K! [8 p' ~) g6 U/ ]
, D# ^+ `; e% @$ p+ b! T1 Jupdate-credibility-list. P* M- `( n& Q+ G
3 v5 j5 E6 P$ ^) K
' S% H5 B9 \* @update-global-reputation-list( R) c$ D2 c/ s* [- O
8 |6 X! l1 _% K0 v$ d1 W. r
poll-class
5 @$ y( X! v; g) j
8 h2 q2 c9 f1 ]( R( pget-color' L4 q; Z4 F3 h; N% ?
4 K; E% [! a+ @+ ] j6 B: ~
]]
3 q8 d/ _- j4 O9 M1 G. q2 z' O
- T# J9 P' `- N( w: ?4 o" D;;如果所得的信任度满足条件,则进行交易
4 Q/ X$ l" ~& B, a7 E8 W
: f1 a+ }6 N+ ]$ h[' g. ~. I( b# q$ ?$ k+ Z
! }$ m6 a( R7 E
rt random 360
' F8 F' g" Q- H4 c2 G( j# {& M0 i+ J6 u$ K; v
fd 1( h3 O0 S( |. b+ f- m+ R
8 X, e H. W. n4 }$ Y! d
]
9 X9 g5 x j, y" x! J) Q2 @
3 @5 A! w/ M1 W. s9 q# a Jend4 G6 h& m4 V! q) W' I) P3 c. z
$ s* u6 @( p7 L3 x# _0 W
to do-trust : i/ t k- q7 s2 v& g7 W: \
set trust-ok False; c" d4 C! o9 l5 W
7 Q n# f3 y% C. w! ]8 g( ] |) h, u
3 r) Q5 b% ^7 R) {
let max-trade-times 08 i8 y8 Y+ q$ D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 }1 L; W' c; u1 P6 Xlet max-trade-money 0
, Y* R+ A9 u" `8 N) ~foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 ~3 f2 l( j* V& U+ d
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( @0 s4 {4 \$ Z8 Z, U: \3 _ ^4 Y" ~) Z* ^$ ]* y5 M9 p* ]
0 a. `" D) T4 b T; A c; k/ J4 a
get-global-proportion5 E \7 }! F" K9 a" }% l% L8 ~% |
let trust-value
7 h$ I( T5 j4 h' {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)1 c9 L2 w- V+ i' B) \
if(trust-value > trade-trust-value)
3 _5 M4 b" S) c* G$ A6 A[set trust-ok true]* Y- O7 Q7 `' b( W
end$ R4 m" `3 L* S, i- x( g
' D0 G2 M y4 @" D1 v. Yto get-global-proportion
) ]$ N, M' F5 d/ ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ S' P3 c1 i, x[set global-proportion 0]3 {2 d" x9 {/ f- ^1 G& @' d6 j; u* [
[let i 0
0 J4 E5 I& Q6 Dlet sum-money 0( R9 n( e) N% \
while[ i < people]2 x4 _( }# q1 B
[
* I: e' k. J# g# M Z% vif( length (item i
8 A1 x+ t% j7 X4 C+ Z( X# x[trade-record-all] of customer) > 3 )6 {' ?" o( Q6 Q: F
[
: Q8 Q0 D2 @( l4 W7 S; w$ hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))# B1 P2 w4 {2 f. F
]
. l3 \& D# G0 N0 B A] B! u( ?1 B' I$ [5 C
let j 0! H$ ]" r- K3 {
let note 0$ a/ h: v7 P! `8 J9 { o
while[ j < people]
6 i1 Q2 H$ ?: ?4 X0 {# g8 c[7 n( }0 H& q; o; Q3 X
if( length (item i
1 S, p$ a% ~4 q* L/ ][trade-record-all] of customer) > 3 )
0 P6 E4 R6 L3 d' Y G& V2 E# V- t2 I[# s- I- `3 J. t$ p, B f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ s" x, M o* u6 k[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 i! N* g# q7 F/ i
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. W3 Q. t/ i- Z9 l/ A
]2 B3 \$ R! g9 a! i
]
6 ?0 n+ Y5 }/ s. V6 {6 d0 Cset global-proportion note
+ D4 y7 V! m$ Z% z]
* n, D$ h' k. F' Fend$ O% _4 c0 w' l" l2 k# A' Z" C* b) d, ?
% j7 k S. |3 e
to do-trade
/ q B2 e, V! R( |/ p8 u% ]& v;;这个过程实际上是给双方作出评价的过程
# @+ T1 Z2 @" b' G. D& ?9 pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 X" n# m; q' tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ ]! A: `& ^& K3 `$ F: F& ?( t
set trade-record-current lput(timer) trade-record-current6 E& A* R- m, W
;;评价时间
$ D: K: E3 f9 o1 }9 kask myself [
, r+ o) M- Q) k- e* lupdate-local-reputation. u* Q4 M% m$ k, `- `
set trade-record-current lput([local-reputation] of myself) trade-record-current
$ ~" u0 M: V8 []
/ s1 Y: f/ W) G: ]% \ oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: C! O" a( i- K" q5 V' I, b
;;将此次交易的记录加入到trade-record-one中9 J$ Z" B" A5 r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 M. o% d3 f$ j* ?' |3 x4 T; }7 w* e' Slet note (item 2 trade-record-current )
v" @' C0 P$ K4 K# }- @4 Aset trade-record-current
! o, V4 {+ M0 { Z8 r(replace-item 2 trade-record-current (item 3 trade-record-current))
* A% n9 W/ H; Z- D* p8 fset trade-record-current4 [# X4 H8 c7 a3 T# f
(replace-item 3 trade-record-current note)
$ O( E8 @+ H5 s% f5 C. E+ G6 ?$ X+ @) C# n- h
D/ N6 |* m# X3 E' r D2 f
ask customer [4 Z* a) V8 o8 q
update-local-reputation
2 L& ?% Y7 m- O. d8 R* gset trade-record-current; G0 D! [5 n7 e$ L" K P/ i
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 I$ w6 `- |# X* T/ o5 f# o1 f]" E- T7 O# R# q6 C
: Y0 w6 O, S) V. m/ R# u& ~
# \3 C1 J9 b, s( H6 F7 \9 ^& yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 ~8 u; C) D l
% Y5 }1 K' W1 S5 t9 t2 c! v/ J1 K
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# w% n; \# a* u! S;;将此次交易的记录加入到customer的trade-record-all中
' ?1 v$ E" C7 e. W( M2 Cend
7 Z M$ P2 u& N- N
1 p5 ~3 d5 `' U9 sto update-local-reputation
8 r5 V( Q5 X2 H+ Y- q6 I& Oset [trade-record-one-len] of myself length [trade-record-one] of myself
1 v8 P4 v, W9 O3 U( S5 H% B. N
* I, H) [1 m) }' _ c
. S- F# `- G) R3 \3 m;;if [trade-record-one-len] of myself > 3 ( v* N8 h/ ?3 J" ?0 _ l. Z
update-neighbor-total4 d$ P$ D# C8 U, m# t( \
;;更新邻居节点的数目,在此进行
* e8 b4 Y' M) B9 i' c9 n1 y8 P# {let i 3
" K8 X) F2 K A6 Rlet sum-time 09 q3 p4 m) ?8 R n
while[i < [trade-record-one-len] of myself]. e* I# y& s) ]) B2 u8 \0 d) f
[7 J8 p+ ?. [3 N9 V1 j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# A8 F% I) N h! r& X8 q1 t1 bset i. I- S k" d0 k9 w6 G5 @
( i + 1)
1 O8 v; c3 K0 F9 z/ Q]* R+ N+ m' _/ a0 @
let j 37 }1 K0 U- v5 J8 [
let sum-money 0+ O/ Q1 {& I7 o) v8 `
while[j < [trade-record-one-len] of myself]4 |) n9 W' ^) F/ }' O/ |
[
& Q& ?6 K" b8 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)
9 h% B- I9 w* ]6 T M4 n6 Q* vset j
+ i5 G+ |; q4 T. b/ A0 E; A4 g( j + 1)
9 Z9 Z5 _/ u0 v* o+ K& f]8 y5 @2 b4 n% u7 z# }/ W0 n z
let k 32 `1 z! _, \+ e+ {' D( `" x' [* S7 K
let power 0$ f9 R+ W; k0 L: D( T7 q% T
let local 0+ ]! b3 g3 j5 ^7 o- h& a+ l( |
while [k <[trade-record-one-len] of myself]% o$ I0 X* n' ~8 Z/ d
[) [" D7 u' ~- d9 j5 j& K/ c: A. g
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) $ y# `# k& g' H
set k (k + 1)
' O" | E% N! Z. X5 R9 Z) f4 e6 b]
T% O! N, _. W* a K/ Bset [local-reputation] of myself (local)
# o7 }9 S, h2 \% R# P4 Aend
4 P2 G! z8 e* r, x/ Q1 g+ i& j" O3 s* G3 M
to update-neighbor-total, c0 F+ Q" r. n ~6 U: a( B1 n
. w# u* u/ G9 Q1 E; D% Z5 r
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 R4 I: r7 j9 C) D# J! F
( k8 n- u( y" j& ^. K3 `: X: `9 }+ k
) ~. V& g- V2 [. J/ D9 gend
% P5 M& ~7 R! f4 o/ C, d% [: P/ T3 l$ u$ z7 m
to update-credibility-ijl 1 ?( j0 f5 g3 a% @7 G1 B( {: L% t
0 S$ T( S+ ]/ T) H/ j;;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。" g2 I. m6 N3 M) r+ b0 V
let l 02 b9 O# S3 |/ @5 j/ b% | F
while[ l < people ]
. \* w5 N, U2 F: E) ];;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
. U) e# n' A. z- Q% t[
* C! y3 B3 M6 [8 `$ ^2 Flet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& o J* O) s0 ] K* C" f+ e& Zif (trade-record-one-j-l-len > 3)
. a# w. \) z$ j' |[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
- Y* N/ v. b6 A, S. \- X7 D, Ilet i 3" n# ?) S- j- ^1 w$ m
let sum-time 08 o* }# d$ H) }$ y' [( Q* {7 s
while[i < trade-record-one-len]
/ Z9 N0 i5 W; N0 f# U4 Z: N9 x[) X2 r# Q5 j1 w' g. B
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 d+ T6 u) ^0 v! j* h# l4 p
set i
; F% g$ B2 I! A( i + 1)
, K" S' i1 p) A* q# I0 Z' N]. \$ _- f6 a# \
let credibility-i-j-l 08 S3 f3 S9 V' r6 R2 V; E
;;i评价(j对jl的评价)* k+ K% ^5 Z) v. x
let j 3% f' ~$ a1 a8 o, Q& q
let k 47 P% M+ \9 |5 J0 i2 _
while[j < trade-record-one-len] C2 p$ x7 K& z2 g8 i8 |/ ?' f# l
[; c: E7 s0 U( p* G: |* E
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
# `5 U* o5 K& q, x, f; Wset 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)6 W. M; m, M' m, K* t, \; x
set j
V( h# ^0 ^$ w3 |4 \) X( j + 1)
% Y7 a0 w F# g1 J]
/ Z3 G9 N2 o! m c, Hset [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 ))
0 h \6 a t9 \8 w+ P4 j# Z# z& F" Z5 g; l9 [
. k0 m1 @( U; [, `$ mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
[( {4 ]- c+ |;;及时更新i对l的评价质量的评价
5 t# Q$ R& l4 m1 R& Oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( E! I* K- L" `, c" s. k, {set l (l + 1)
1 H% L3 ]5 b3 b2 D! n0 R, @]8 v2 H* h2 m. }9 P' j- t, F
end, I) s2 t# r7 L4 M1 R: A! ~, y) ^
% M& ~! Z( c/ l2 b5 J% \ e: sto update-credibility-list
% v7 \# Y0 X5 U; d0 plet i 0
, H* f% s' L: D$ S( Nwhile[i < people]
* E! x; t+ N- }( J[' V9 X- z' e3 t8 Q9 E9 y
let j 0
& v) K5 ^$ `! X" A! }let note 0$ S+ y# E T0 g! }+ ?* D& Q7 u
let k 0
0 L9 z% t, N, r;;计作出过评价的邻居节点的数目
0 q: H- Y# R; t" n" R* Wwhile[j < people]
3 C/ |; x! g" c[+ E+ O. a7 I' t0 C0 I
if (item j( [credibility] of turtle (i + 1)) != -1)$ a4 B' M8 Y/ U+ ~
;;判断是否给本turtle的评价质量做出过评价的节点3 b6 B- S3 h) J8 a! w' C7 b0 ^
[set note (note + item j ([credibility]of turtle (i + 1)))" M$ A- ?4 p, }5 X& U5 U; d$ x+ m
;;*(exp (-(people - 2)))/(people - 2))]* Q! i0 W* Q' t9 _2 f
set k (k + 1)
5 i: [8 |% K9 J+ d) o8 \% G) K], t5 V) x% W- B; M8 i& X5 U
set j (j + 1)
; L2 o9 u' L; F8 b1 j: l0 e# q+ O5 c]
* n# c; U1 ]: a8 C2 d% g: Lset note (note *(exp (- (1 / k)))/ k)
2 V" L- ~7 j3 Y8 x8 F* iset credibility-list (replace-item i credibility-list note)
- S5 M* t2 s' z3 j$ _set i (i + 1)# P; _; x7 m' M) H. e0 w
]
2 q8 \( N/ v' Uend
* e" U/ L3 _$ x7 i# o* N( y$ @9 O( q, ?: y6 R, A- ?5 ]* O
to update-global-reputation-list
" C R# s/ F& u& m' J7 P, O4 Clet j 0
) d3 {& `/ {; h' Cwhile[j < people]* h: H% }( M. F# S
[
6 S# B+ o. z' @3 {+ mlet new 0: O) _! N8 l8 P- h7 L0 U
;;暂存新的一个全局声誉
. P* [0 d9 n. ^ p. Y* E! l+ Nlet i 0
0 O* U1 z2 t; D0 D( C5 Tlet sum-money 0
! h8 Y: }0 Z, C/ E$ w, v3 F6 ilet credibility-money 03 n4 a1 p' y# N! T5 E! W8 x- a9 x- \
while [i < people] [# `9 A( m1 h& s7 ], D; i/ `* J
[
$ D8 o# h z8 Wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# C. w( \) j4 |+ e0 jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% C( K& w# P7 d7 X' T1 P- B0 K9 d Z
set i (i + 1)
+ {) ?3 k, {4 i8 C$ \! l/ D]" a& P P( F8 E/ J8 x" W& A
let k 0: J4 x4 e% j0 j- [: z2 q
let new1 0" i* \/ E* `0 a5 Q
while [k < people]
p. s0 }9 j# f2 {9 c6 S+ X[, j8 }4 g$ y/ o/ _2 A; ~1 H4 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)( `# B1 f: R* J0 |& W4 B
set k (k + 1)
" _/ f: g+ l& A" I, B5 m]
+ f! U7 o1 ?7 F2 {0 ?( ]0 oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 _9 f, Y2 X5 K% i0 |set global-reputation-list (replace-item j global-reputation-list new)% L# S8 X* q( A4 r
set j (j + 1)
7 m4 l. h; }- h: e* }( Z9 {7 K]% h0 s# |+ {3 `9 R i
end
- J3 V0 \6 s/ c$ q& @2 [7 R1 c) r/ {- N9 W! o
7 k4 w! t0 I) K' U* o7 w# x3 R3 |( Z O( P
to get-color
2 U+ C8 A0 r9 E; ?: ?5 M% n/ g9 M* }; J W7 j7 Y
set color blue/ r) r0 v4 u ~* @
end
5 }2 D* }6 R% E$ L+ Z7 U( Z. \" ^7 f5 X! G. D4 J$ q
to poll-class
* e) A; K* `3 u9 M" {2 [end
% t5 w) X0 u/ S1 V
. H/ E' G' j) w. x4 a: A5 yto setup-plot1/ ]0 Y% q6 o+ n$ i
1 t( l" r h B5 \2 ~) Y% iset-current-plot "Trends-of-Local-reputation"- ]0 l$ W+ l: h1 |; H
8 @/ Q/ c6 ~/ N/ o# vset-plot-x-range 0 xmax7 o; G2 |& w6 L+ E6 l) n
% D# b* K) O2 m/ E& [2 Q0 x
set-plot-y-range 0.0 ymax" m9 V; b# v2 t( ]- I& m7 D" k! E
end
1 w& X8 W! V& P* H3 l
/ Y N {: s7 T( B5 S7 P' nto setup-plot2& V+ S; R* O1 {/ H! @0 E1 [( u! }7 U3 \* K
5 O, e9 f& z) l m! k8 H
set-current-plot "Trends-of-global-reputation"6 @5 b, ?8 G; U0 {/ h
5 O7 A1 d* k& dset-plot-x-range 0 xmax8 T( m6 D4 r4 p9 h
- B- m/ `; L; W1 {+ U/ c
set-plot-y-range 0.0 ymax
. _: x5 w7 [5 z) ~end
) I0 M6 I3 V( G7 B4 L! X- x* |% `. ~3 [+ @" }
to setup-plot3
' m+ }# R5 X# @1 _* Q7 w4 k. [+ f l, T: \ q, Y: I; v j
set-current-plot "Trends-of-credibility"
4 q( y9 f) [/ N" I) k/ p
; P- I! a1 B/ @4 z$ \7 `* fset-plot-x-range 0 xmax
! C/ M$ L4 Q8 @7 D/ Q
; S, v8 H* V! A1 Vset-plot-y-range 0.0 ymax. @! n/ k8 y$ `+ x
end/ H2 d+ Z9 Z6 n# I9 i, D
' t. U, b% ^$ i7 L/ e% Y( z
to do-plots
; m. u I$ J' ~7 B/ E( n% }set-current-plot "Trends-of-Local-reputation"
) l- W B0 r& j" \* bset-current-plot-pen "Honest service". j! o" ?; U( c! e! X
end
# ]+ x* F9 L% z$ T7 D
: U6 y" j; r& d( P1 q0 u[ 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
|