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楼主 |
发表于 2008-3-18 13:10:54
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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 I j% a1 C, ~8 Q @" Dglobals[% W: N! _# I/ G
xmax$ r1 G& y0 _4 y& C. E& Y5 ^
ymax1 O7 l3 B4 v# b, }8 N# {
global-reputation-list
2 \- O: T$ P+ ]" W% l/ }/ ?' T9 [& y3 U
;;每一个turtle的全局声誉都存在此LIST中
3 {( N6 h; k4 K0 W$ ]) ycredibility-list
( e/ [( R' q+ B4 l% R;;每一个turtle的评价可信度# s4 d3 W0 H) D& c
honest-service2 P8 z+ M7 g) x; I
unhonest-service
7 Q7 G o) X6 r- q$ J8 a a8 o' Yoscillation6 P6 i3 W' U1 O
rand-dynamic1 B j6 F+ V+ k- e! R5 b; }
]. ]5 o9 R' ~' ?" Y
( o5 @, G$ z5 M' w
turtles-own[5 ^9 }2 Y- {/ Q8 I2 T
trade-record-all/ Y1 Z3 o/ G3 s: c
;;a list of lists,由trade-record-one组成6 W2 w5 }/ ^- g/ x9 Z- L
trade-record-one! y( z' @+ ?* s6 [& e
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录! i; ^0 Y( y# O2 l! O$ K" Y3 b
; Q0 z: j8 S! m5 V
;;[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]]
. h( U3 g6 L* @5 x. ctrade-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], e5 @3 M7 `5 H& c" a! K6 @0 `
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list8 U) @* V. C1 t9 `
neighbor-total
5 P0 n* I# x* j; b+ a;;记录该turtle的邻居节点的数目8 l) Q0 v/ a i2 i2 W1 N- i
trade-time
& M+ v& i! b/ E- }9 U7 {;;当前发生交易的turtle的交易时间
9 b5 B+ i& M9 g- l# z, Wappraise-give
% v9 z; F; K" m) B6 l;;当前发生交易时给出的评价" J! [0 Z) u/ e+ S" T
appraise-receive
' p. }% i! g2 |" U* |! o0 D;;当前发生交易时收到的评价
& F3 K3 z, E {6 P- B$ F- ?- `appraise-time I& D) B. R2 V: u0 w+ X4 [' w, B; w
;;当前发生交易时的评价时间( G1 r3 {0 ? j7 |+ ?8 X, Z% x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 q9 i% z! D8 z$ Q: Jtrade-times-total
2 k4 F+ X W- a! r4 w9 ]" [;;与当前turtle的交易总次数, ~* j( @, [. a3 Z. h$ _
trade-money-total( @: @/ l$ ~$ ^. a f( h
;;与当前turtle的交易总金额/ ]6 }" B# ~# S# p& j+ {' x9 |6 m
local-reputation
: j! C/ F0 B, j1 [" Q9 Q: C" Eglobal-reputation
( @' U2 \5 z9 v9 O' r3 Fcredibility: O& V( Y; U1 A- N t4 C
;;评价可信度,每次交易后都需要更新
# s# |; k4 a$ _0 jcredibility-all4 G$ ?! v; O1 c; k* m. C
;;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, Q9 O7 ^7 ^5 d' ]' o
3 y6 p8 H. R* `+ ?& z: m' p7 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0.5" |- R' ]+ m3 {1 ]
credibility-one
1 r9 }7 m2 o) `: p" p;;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
* d" \ D5 a& X3 W6 } o2 n3 Mglobal-proportion- j- l+ ^& `7 o0 z; P9 L' d, B8 c& C
customer6 p3 x# a8 H G
customer-no, b1 h2 I9 |; i! I- |
trust-ok
' L. H# o( v/ q* c! H) N& M7 a8 Ctrade-record-one-len;;trade-record-one的长度
+ a0 K2 x0 ]$ `0 C" _% `- P]1 i. y+ C8 q0 y
+ |' T/ B: `) f
;;setup procedure
; Y2 s2 f. r+ b- T0 L/ ^) H: O2 A: M8 m2 t G/ \+ |
to setup! q! I. k; u+ O* ?& j) b5 w, z* U
9 @% V& Z% B7 W m
ca7 ]) Q7 [' U- C1 `1 |) ]
3 I$ E+ q' w& E# ?4 F! @
initialize-settings
; H; z# t: \) p# T7 n$ J" ]. f8 Y. {! f$ v: @9 _# _3 v- u/ G
crt people [setup-turtles]
% a; l* y) z$ |+ Z ^/ v
' ~! E( V7 s5 u/ t4 x k1 dreset-timer
: g/ H/ F9 z$ R% z" v3 X2 V* u& y2 C. ?! T! Z+ ]( _7 b
poll-class
h, U, q6 M8 V O
3 c5 Q/ H) U! e) o. Nsetup-plots
- t1 M& O1 }" h0 M$ R8 y
5 @9 l4 y9 x& l8 l# |: F# Mdo-plots
7 N1 h8 f) [* C/ k& B) Mend- E% \4 I8 S) f, L0 Z( ~5 A
0 e# D; y, p. z+ N8 Wto initialize-settings; M+ G2 ~0 `( c) b! }' h
! M( t+ \& [' [5 u5 H
set global-reputation-list []* k6 O- S' h9 [2 W2 A, u1 m* C# I
; X5 ?3 d1 ?, s$ C" d- e' g
set credibility-list n-values people [0.5]- t$ h: r& b6 V4 B
1 B+ f! m: l- Q0 i% g) m+ J) E2 Bset honest-service 0
: ^0 D' u4 f |1 f- v {2 d- |" \4 u7 x- {, R' q
set unhonest-service 05 B5 b+ r" w$ O' _" i
7 ?6 x; u5 ]: o4 x/ ~1 w/ Cset oscillation 06 Y4 s5 c3 w1 I1 |* S
1 I3 q- K+ a. u8 sset rand-dynamic 0" l" o' q0 e- ^7 m7 g! l7 K O5 s1 @
end9 }. ^- @# E0 R9 H
3 a: F7 d# t7 A7 G$ W
to setup-turtles ! S; u" Y' [5 f: r# s
set shape "person"$ e; C# m5 J6 m5 q
setxy random-xcor random-ycor
- g2 X7 R' s7 b* x* c2 d9 bset trade-record-one []
. Z+ i# U5 F4 t5 W U" e
& F' ~3 {6 ^( @6 R1 Eset trade-record-all n-values people [(list (? + 1) 0 0)] ( b" n' E' [3 y' S0 s
* R$ I/ R* {# u9 v. l) u4 U
set trade-record-current []* P: P1 q/ A$ F& y6 [$ z3 }* |
set credibility-receive []
0 f* ~- p X6 Uset local-reputation 0.5
& t/ S" Q' M1 @4 eset neighbor-total 06 g s" D) }6 ~4 B* R- K
set trade-times-total 0% \ |) p& Z8 |) }
set trade-money-total 0# f9 x" V4 s$ _9 C3 N
set customer nobody
- o; h# e, g$ l$ Tset credibility-all n-values people [creat-credibility]& g4 G! s3 O$ }
set credibility n-values people [-1]0 a- S6 B; }- k+ b
get-color
( H T( D8 c V# ?/ X) H! C. O! Y# w- F' j8 J
end
, t8 f2 [( a7 \6 ]2 b* |$ e
7 ^! F% L* i% B# m- N* jto-report creat-credibility( S. X) T$ ^- v9 E
report n-values people [0.5]7 b" P: e0 _% o
end
& Y2 O, k9 r) n/ ^+ V# S9 w/ y6 r$ }' c' ~! [5 L. i
to setup-plots
1 M+ G% U! }: B b7 ^# ?2 G) H
5 x) x3 J1 {% X; m9 J! t( S) Dset xmax 303 t2 S: R' z; W
# `& J) x6 d! X m# B7 q
set ymax 1.0
' H+ p" U- N7 d) ^$ d3 S! x; F5 F) W! m; Z4 w4 x! E# [0 q
clear-all-plots
* V+ L& |, L( K' g/ f
" C6 n1 H+ _. W$ o+ `- w tsetup-plot1
1 s# v, v" a. c- G; X8 E9 h+ k0 R+ e) y9 x K' d; L
setup-plot2
6 M$ x0 _4 `$ \# d
+ k+ N( g1 r6 i$ Wsetup-plot35 s* ] O% ~7 k( t" e T
end
4 q% Q5 X t) |
2 Y/ S$ O* B& ?$ I8 u! X- t;;run time procedures
k7 N3 E8 Z9 J, C- T3 d
3 r8 \, X! F- L+ ?6 c2 Gto go
- J) i, \6 e) L; d' v6 V$ H& k/ r$ X" a. h6 l; e
ask turtles [do-business]
% [5 l1 C' B4 {5 X8 zend) W+ v F1 r9 ~1 b" _
/ s1 J/ S1 g) Q# u. i% B/ Z8 ~
to do-business
6 X! k" u5 ~# q& F2 P- k; M* J7 w% Y* s2 H6 p% z, v o
. ~; \' A% Y" G; J
rt random 3608 }8 E& h- `& V% d
% n7 Z8 E+ F% A/ w6 |
fd 1
$ ?+ R' b( C; |
) V9 e F7 c+ h# t. qifelse(other turtles-here != nobody)[
- P, w9 ?; D% o/ a5 a: @' G; Q. M3 t$ C
set customer one-of other turtles-here( I z; B/ J8 B) p5 F: T
0 A3 r1 S3 a; z3 e Q
;; set [customer] of customer myself
* y( b0 ?2 T% G# _8 d6 U1 g, Q( h4 { z/ W2 c' l% {
set [trade-record-one] of self item (([who] of customer) - 1)
, l% T, |% V" Y8 z/ m, F[trade-record-all]of self4 [, S0 a1 X% I
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) K/ Z0 N7 M" s& d# W
( w+ ?9 z! V7 @set [trade-record-one] of customer item (([who] of self) - 1)4 g: P/ V! u- G
[trade-record-all]of customer" v- X, [; G7 Q
1 O2 [ B) n( U* n% ^set [trade-record-one-len] of self length [trade-record-one] of self' ?* Q0 V9 V0 r
% {( h/ e# K+ m: Mset trade-record-current( list (timer) (random money-upper-limit))
3 q: y0 Y3 k) U# N# A( Y
5 F" U# H+ w" }2 @, yask self [do-trust]
; u% k6 o% J5 e7 a;;先求i对j的信任度& D0 Y+ W; t9 _& [6 K. h0 _
- R) n% y3 A! Zif ([trust-ok] of self)+ l3 k# B& C/ g% [# j
;;根据i对j的信任度来决定是否与j进行交易[
+ z3 o: _* ~1 B, h) D# cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* V3 c/ I! S4 L8 I1 t/ H! I9 q( S9 V
{- U; U! u% L# B$ V# h[: P; g, K' W' a1 ^. N, C
L% G$ F u1 v( \: \do-trade
) h6 f1 P' ^. `: T; D; K# S7 u; S9 A2 {$ c
update-credibility-ijl" U G& a6 Q; d# S0 e7 R
0 C. _# A) u$ O' Yupdate-credibility-list
. ~0 C e9 V& q7 x4 n* A; {$ e8 N# W( ^0 d3 [. _8 d
) F0 R7 }# b( ]& V2 A5 Z) J& z. t+ uupdate-global-reputation-list2 e' z& _# s8 V
7 I. ] N$ y% Xpoll-class
! \# P% C z0 |+ k! ?" M3 t6 K& f6 Q9 C
get-color
: l6 _. \7 R% B1 s: e, t) x' M" a6 W( Z; C# S# ?: ^6 y; U/ N( n
]]
; w8 I' R* a% e2 y
0 N/ W. _+ o- L: h/ P;;如果所得的信任度满足条件,则进行交易
* ]3 W) t- Q6 F" D) F
* Q2 j# c7 h h+ G[
$ D& e# T+ l. R/ `7 N1 r
. k. T! i& Y+ S$ `: E! trt random 360
6 X, o9 v6 @1 F. j1 M
" c. `0 b% ]6 S8 ~fd 10 c+ G- }! j' ~2 u* u" x
& {# Z; Z; }; ^) Z8 A1 z& J]
0 T( c- d6 ?1 X2 a9 H" X/ F7 ?* q" o$ O6 A# q' v
end
3 _5 d+ \3 D9 v. X$ G
0 C, H! H3 B+ W' ~to do-trust
7 G: e3 |! Y4 f$ Z1 {' m7 K$ c2 D) kset trust-ok False: d2 J1 G% r1 P8 f& r
1 d7 f( b7 ]9 a4 t/ z2 a$ o; @' i9 w# b9 R5 W
let max-trade-times 0) k# a3 T& F7 _9 [ w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 r; ?0 ]+ c W) [let max-trade-money 0& N j4 O( A3 z6 L. W; X7 y9 C
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; W- R7 Y! S2 y/ L
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))6 T. n6 B8 D, D$ K- b: I
3 A$ v! _0 P [: r% i3 A0 Q0 O0 f
+ M- t0 m$ i D& B2 K& C; Xget-global-proportion
0 V! m# g' ]* ^7 y `* Vlet trust-value8 k- @# I' P- L$ E/ r& O$ c S
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)
+ y4 [ e' u2 l& g+ M3 P+ J+ bif(trust-value > trade-trust-value)
& w- f; c' P6 ~$ P" B- V& i9 P% ~[set trust-ok true]
$ z( @2 F9 L; e. D$ j9 kend# y! E/ R9 w6 M$ ^0 X; l
/ ~ y( ?" S# \) V7 s& v; b" t
to get-global-proportion
" M$ q. Z+ @3 D% N8 o; D. _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& {1 r4 o/ n6 p" F[set global-proportion 0]4 r( [+ u4 B5 |& D; r& T, m9 ^
[let i 0. c% j0 ?, }+ i5 @, W9 v5 f
let sum-money 0
& M- G1 A, ~6 f' Lwhile[ i < people]! _+ B% T+ {8 v6 q- n+ g" l+ U
[+ X3 p9 Z8 u$ Y
if( length (item i* g) f( D% G+ u9 S; D4 R! J
[trade-record-all] of customer) > 3 )
+ D9 ^* {6 u% y% I7 q/ P: J& H[
1 N) Y8 s+ L: X. D- Bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& E8 k# q7 H( q' k L2 O5 M]- c8 l5 E- I" u* J; X5 W8 P# K7 y. t
]+ U6 I5 _$ E$ Q8 g# w4 J. E4 s5 L; K
let j 01 J# A: N9 K4 G1 K) V$ N# Y
let note 0% T( a, ~. }. F8 M: s9 D
while[ j < people]
$ k. v! D8 T/ B l$ v& l" v! I[) k! f! M" K3 h; E! O7 q H! n) g a
if( length (item i8 p |' A" F# Z6 g
[trade-record-all] of customer) > 3 )5 d4 P% v3 S7 \5 i2 p' Q. x
[. T! W8 m/ {1 ?: \+ Q* P
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& X! d( q! S" o: `3 W2 o9 K
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ Z0 s& _" J' h
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 R4 C- r( F9 e9 |) n, Y" U2 e6 M]
- o, T4 I) k4 |- |6 V9 {]
! h9 ^5 g1 N, ^# zset global-proportion note, l* {/ b% ?: }( [, X: e
]
- T+ i1 ]5 d% s. x$ k! ~end4 S0 J( d2 h* e
" p% Q' e7 p. ~; c2 B' Eto do-trade9 r* Z5 I, t1 y. a/ P7 H/ ~$ q |
;;这个过程实际上是给双方作出评价的过程# k; B8 y2 u! c+ p( T7 c7 x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 m+ _ d W2 P5 D' A; Y+ w0 o" d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! [2 L$ l3 }; S# iset trade-record-current lput(timer) trade-record-current4 A( c# f) t& U2 M% P% t
;;评价时间' {+ L. c4 u" e
ask myself [) b# Q2 Z: v+ T# d
update-local-reputation! c, {( j( T; v
set trade-record-current lput([local-reputation] of myself) trade-record-current8 H" y# c+ t, b$ s
]
) M. u% J+ }0 Y, @3 j- ^% ]set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 b8 l- c1 t+ e) H- m Q$ Y
;;将此次交易的记录加入到trade-record-one中* }! U) p' w0 U1 i- e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ l3 F3 c0 `) l9 N0 m) @( R
let note (item 2 trade-record-current )5 K' [7 x2 d, o: t B5 i0 \* u
set trade-record-current
/ P3 B1 f: k# g8 {+ \' F(replace-item 2 trade-record-current (item 3 trade-record-current)) [6 i5 z* A6 o
set trade-record-current8 h9 D8 H2 C1 ?0 I0 r- _
(replace-item 3 trade-record-current note)4 N+ n' i5 D9 c! J: S4 P
- B& u+ g5 \) D0 ?4 L7 R
' y; F- M ~7 @2 l* eask customer [" ^$ C- p, C) Q, I0 p" u6 ?
update-local-reputation
2 }2 n. I _% m, P) Y9 Q0 `set trade-record-current
9 k3 t& ]) k0 I, a(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ b' u# I$ k o5 ^; ^9 |]! b' E6 z( _" r! m& _' g- w
) Q$ z% i7 |! M6 O2 O$ w
5 R+ m4 P* W6 @& c/ ?- w. |7 d; x4 M
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 p+ _; P0 E$ q* {
; w$ _3 K: [! H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 u6 p$ G% g; E0 H;;将此次交易的记录加入到customer的trade-record-all中/ Q( k! B# y1 b& X3 j
end* F" j( C: b9 Z: N: O/ }6 X
/ ~0 m$ V" z. \$ q: R- F
to update-local-reputation
- Q) O4 X2 a5 |" g3 J7 H$ dset [trade-record-one-len] of myself length [trade-record-one] of myself8 B- e4 Z: d( o. ~5 s/ N
$ t( e2 T" u% f& M
9 h' d; b& ]7 c
;;if [trade-record-one-len] of myself > 3
" O: ^. |8 d0 W" H" Mupdate-neighbor-total3 N; x9 \ L/ X) l; A0 t2 R4 _# h0 c
;;更新邻居节点的数目,在此进行
1 k w9 l9 c; c/ W; N: p) Slet i 3) l* ]- e; a- W! I
let sum-time 0
0 i, x. C4 m8 D) E6 xwhile[i < [trade-record-one-len] of myself]; U% h' _9 ^' H
[
( k3 l; X* [8 b: C. I- iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ T+ c! O! G" |: X3 z: i& Q) Z% s
set i
& z6 G- h4 T9 U1 | L( i + 1)
. X, q2 U- m4 A9 v' l]+ _7 d' p6 l5 b) e3 v' U0 l8 q* J
let j 3
6 i1 C0 F: G1 ~6 [( Ilet sum-money 0
9 ~& a/ c9 I& I5 s% t9 Zwhile[j < [trade-record-one-len] of myself]" C: K0 w0 V9 `) J% B$ {* ^+ ^
[
+ ?5 g1 r, s) T, _: Z' _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)- z7 o' ]& I0 b4 k+ x f1 ]3 E# O0 t
set j0 [+ [+ r6 B* o( t: g
( j + 1)7 m/ p% t/ h# i2 f7 O! H
]2 d- }' K i; O: h- d
let k 3
2 H6 w# X9 _) f- M3 _let power 0
- X+ g# s$ ?( n: xlet local 0
+ i1 ] p! K2 n( _0 i8 C) awhile [k <[trade-record-one-len] of myself]- n' x' X" h7 A4 H& b+ N
[& F- [" {7 I" ^/ k0 W0 n) `
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)
3 O# {- p* h- O& e0 lset k (k + 1)
h9 d2 K- P$ {- V3 ~: d* G]. D0 i8 a8 e g1 U, e- d
set [local-reputation] of myself (local)1 I- F. L/ h, r
end
7 U1 F0 n F0 S. M' \9 e
$ w+ G$ X, _+ lto update-neighbor-total
/ u& } x! `. \! z5 Z
4 V! \* ^2 ^4 s- ]* }8 qif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( L1 M6 N C. G, r: }* q" E- Z' L# _" t/ l. P
0 p; z# C$ X/ V4 J7 X' zend- Y4 N( X# ^3 O! W& b% ]
8 M4 @2 {0 e) L
to update-credibility-ijl
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# ?' s$ J* R$ H, S8 C% j; s;;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。- D7 q5 v& S. u, B2 L$ r
let l 0
9 e3 [; m& m* i- S$ xwhile[ l < people ] L5 t8 j" F# ~+ P# Q4 O- F
;;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 |9 y2 a4 H& e* {& v& h7 Y
[
% N5 f0 H; v0 k: B) {, Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 A" {2 K. H, i* {7 f4 V. |
if (trade-record-one-j-l-len > 3), }! Z$ w) [4 a6 K: s! r4 B
[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. c; y: Y8 }: u) flet i 3
* t0 p0 a. j2 a6 q i% ^let sum-time 0, M. {# w( S! ?5 Q I5 t1 C
while[i < trade-record-one-len]0 a: D p0 i9 U2 i: ^2 S
[: G) X2 e) Q. w; ^' M; [
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 l/ ^2 x8 @- Fset i) ]7 g7 a7 x: q$ z
( i + 1)
4 ?' ^3 b' ^! H" ^; K4 @]7 q2 j1 t, r8 v; s, p2 `0 i7 J
let credibility-i-j-l 0' m' c; ]8 S" I) [' D) ?
;;i评价(j对jl的评价)
# y) y# Q- J: ulet j 3
' u( l2 @9 r, T/ C9 D5 s8 v; C2 y U6 Llet k 4# D& A+ }* V+ r9 X. Q1 H
while[j < trade-record-one-len]" }+ P- Q. k$ U# ] E
[
1 I2 Z4 t s" d1 swhile [((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( ]3 J9 h4 K/ x( a4 I
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)
, T( f1 [3 w' ?9 f1 aset j! J3 [ d( S9 n ?1 o# W) i8 X% A
( j + 1)* Y4 i6 X" K" \7 z
]+ _, \1 M# a8 H2 R. _5 {
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 ))
. W( N/ E+ `% l0 k& k$ R! H
; d( L3 O: d4 n/ q5 D1 b( {9 ^7 o5 k& P; {: a; R/ T1 `3 A* J
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& ]# c! e* H/ p9 g;;及时更新i对l的评价质量的评价
) C- \ x+ S) Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! U0 u! z" |- f2 o5 t" s6 vset l (l + 1)5 G- b- E) M: \
]
. ?7 R7 H6 w* v" vend) M3 ]4 L1 E, [0 X( `
6 o9 O* e* h/ @+ J& h5 r: jto update-credibility-list
3 t( Y! U# ^" z5 P* R5 B% slet i 0 Z+ A- h6 N9 m
while[i < people]
4 x5 q0 Y8 A4 J- `) _2 E! M' C( k[
: M- [: _6 e, h1 {. o% Llet j 0
0 |8 ^% g0 O5 m5 Mlet note 0% v9 J9 L; |2 X4 C8 q5 B0 K7 H/ g5 G i
let k 0
( q9 j, j& H% X7 r2 g5 I1 C: I4 m;;计作出过评价的邻居节点的数目
- S; @; `* h: c7 twhile[j < people]1 D7 [2 E; H+ y2 Y0 R5 ]
[
9 S S( p7 t( Mif (item j( [credibility] of turtle (i + 1)) != -1)$ H7 E. Y' e7 y
;;判断是否给本turtle的评价质量做出过评价的节点
x3 q+ n7 D6 @1 W: ~7 \[set note (note + item j ([credibility]of turtle (i + 1))). d0 D+ A7 b4 ]& I
;;*(exp (-(people - 2)))/(people - 2))]
2 ]! m+ X5 e/ |2 W. jset k (k + 1)( h( L4 W4 H& O9 } a
]1 W" O1 g$ K9 R! m0 a
set j (j + 1)2 G9 g' D. ?& z$ }2 u
]
$ g. K. M# r& q+ y/ vset note (note *(exp (- (1 / k)))/ k)9 M( l0 q9 F% A2 D; U8 v
set credibility-list (replace-item i credibility-list note)
! o0 q' v8 j `: W/ p' mset i (i + 1)
4 b4 ~' [. Q) m+ F]' {+ P% @% |- \+ Z! I
end5 x |0 ~8 c. ^$ `8 @( R1 \/ A% i
; t+ f) @9 j. O8 h o
to update-global-reputation-list
; S) y- d X, wlet j 0" G: h* U5 t' y
while[j < people]
* \! a8 K6 j( x* ~9 W[. G5 _2 o# ]1 K2 q O- y' C
let new 0
; k- W/ }9 I% m z: m+ @# [;;暂存新的一个全局声誉
3 o. ]) }6 K/ Plet i 0: i! A3 u7 O( X1 y5 p; g5 s2 x$ h1 p8 O
let sum-money 0. ~2 d* t" P' \2 f+ F
let credibility-money 0( I( p( q$ l" u1 g0 m
while [i < people]
7 ^& I ` z3 u" I- _- f- a. d[) y, M3 F! N7 H
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 U; I- p: }. `/ t5 `
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* v. z! Y1 a3 R8 [ S4 ^
set i (i + 1)
B w& D* C6 f' [4 Q, K]
: e1 H; }3 G3 F: G( `. N( {0 _let k 0
/ d0 }5 O+ H' u9 T! q& ^; Olet new1 0
1 K: H( Q) `) r# b" q& b( Mwhile [k < people]
% X% G0 _: f5 m2 B* [6 L[2 o' z; l3 X( ]7 L. 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), v$ f9 l2 Z6 A' L" \' C! Z! _
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; H2 M+ e* @, N+ @6 T" ^% ~9 {
set global-reputation-list (replace-item j global-reputation-list new)
s( f% R; C% ~9 f6 c$ Eset j (j + 1)
' ^! b$ @4 ^$ t- k0 _' B]
- Y+ R5 D% j, B& J/ Tend
; e4 b- r% M( k8 L. F2 D. I% D& h" \, _7 W' s; w/ v& S: Z
) o: R2 A% E' Q$ s8 d: r: F; x- q1 \. D) O! f8 q
to get-color- s! A3 k$ B. L1 d$ ]6 y1 E# L
& |9 Q8 y6 |/ ?5 t4 @! T3 mset color blue9 h' h+ D2 L S; V' `
end
( q# e& l; x- [/ _) }( k% C
/ z- p1 C( Z* t4 C3 E& L3 Pto poll-class
$ |4 J% O4 d; z1 _8 m! W# lend
% B, s5 _8 v' G+ P2 k2 o5 m' F# c7 f% S$ ^5 v% g8 v9 G
to setup-plot1- k3 W9 O" p, y" K
& k6 a6 r* _6 B0 y) S7 y
set-current-plot "Trends-of-Local-reputation"
9 Z! L6 z3 [ l2 B8 [1 e$ `/ H4 W: `4 I
set-plot-x-range 0 xmax
# I3 O, O8 a6 }# r, n8 p7 Z, t) O( P7 M( m+ g1 |/ Y
set-plot-y-range 0.0 ymax
- H# o9 V/ S6 T' B. Cend
- V- U t4 @8 y/ j* h" b6 B* o- R' }$ T$ B
to setup-plot2
9 c, L |' Q' x, v3 A# G% m H- @4 ]/ K* _' B1 T9 @- L
set-current-plot "Trends-of-global-reputation"
0 p. A5 E8 ]2 @# n/ i# D1 q' y0 E
! q$ j$ J5 |) h; @set-plot-x-range 0 xmax0 ]$ G# ~& X$ z
* W% X( p5 R8 q; m9 Iset-plot-y-range 0.0 ymax3 y1 a5 w8 H) T2 o3 Z9 `5 i/ a
end# l4 _7 \' V& \' d( d
5 \' {; z0 d# U% E* b- Oto setup-plot33 W8 W4 H, j1 } b3 A' h
" y5 F- @8 C8 ^& f- p
set-current-plot "Trends-of-credibility"
- C7 f$ x* S! [+ H2 Z* H" ~1 `! j& {6 B' ?5 @' n0 p
set-plot-x-range 0 xmax
3 f# m3 E! Z" V$ Z
& _, |. `7 `8 L$ }+ h7 z% U) dset-plot-y-range 0.0 ymax
% |/ t- K; i* fend5 S4 c8 e+ m5 D3 r4 F5 _
@ z" N; w* `+ e
to do-plots3 Q6 _* [1 D" q6 G
set-current-plot "Trends-of-Local-reputation"
% A' e) W4 y7 gset-current-plot-pen "Honest service"
9 u: i7 o' D) r; ^end% z; H# K# p. s. u! E/ P* @6 T
" I# i' e+ H- V2 Y8 \; Q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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