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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
, ]7 N- `9 q0 Kglobals[# x) v8 t' M" f7 q7 c1 I
xmax
! o( v G* R1 B: l% U _. o# g" [( Tymax
: N4 {, V$ r. D8 b* Qglobal-reputation-list& o2 K* A# P ~! K( y1 a1 \4 D' W
1 k& J% _ Z# D8 x4 K6 y5 l, x+ U;;每一个turtle的全局声誉都存在此LIST中9 C. f) h: N9 I. h+ C5 ]& n% u
credibility-list
5 M( e- `$ o: n% F- l" K;;每一个turtle的评价可信度
9 v! E1 Q2 c, j- @7 g3 p- ?' yhonest-service
8 {9 v y" F% }9 T( \% ]unhonest-service
1 X" a* U# d8 C& ^8 d& Uoscillation
; W/ |: z H& c5 T& r2 srand-dynamic
. J. P o2 n, k2 r; o]
7 H8 R# `& j! D: u& d! l$ P( t
* x& Q: O0 ^ V4 hturtles-own[
8 g" _9 x$ q5 Xtrade-record-all' }" F7 B9 p% L$ w! j( f
;;a list of lists,由trade-record-one组成( P! a4 U, G C
trade-record-one
0 A! V; D- p% e) g# S+ m) o& Q4 x;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# P9 P: Z" v6 E" P3 J- x
( Y. Q( i+ p/ \ q$ o0 ~;;[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 E, F8 z% l: F3 }0 s1 a
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]
% B" G. u, I) ?' |2 Scredibility-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
4 J" ]0 o b* ~$ \neighbor-total
/ B' {- K* k" ^ U1 @, O+ o;;记录该turtle的邻居节点的数目3 W; X6 G) [; o0 _8 _
trade-time5 [: d( R5 Y4 u \2 X
;;当前发生交易的turtle的交易时间! x q* e. o, [
appraise-give
5 \/ ?9 k+ P3 |/ A/ x;;当前发生交易时给出的评价4 s4 H& x' ]2 Y& a
appraise-receive
7 V0 q2 `4 s' r) X: {% D8 ~;;当前发生交易时收到的评价3 }- ]' W+ E5 B# A- J& }3 }$ \
appraise-time& I" Z# u' G4 q9 ^
;;当前发生交易时的评价时间
1 K3 s4 A* z, |$ h) P/ Hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 \% y0 C: D( Otrade-times-total
2 e; u0 A1 B. [4 K* @;;与当前turtle的交易总次数
, ~( A8 s% A2 N1 S3 C# z4 D+ Htrade-money-total w- t& T: j: M$ D$ J [6 K0 l0 V
;;与当前turtle的交易总金额7 u( ]7 i( ~; U s
local-reputation ]8 U3 W S9 q4 M/ p
global-reputation! f: e# c9 l" G$ h8 N
credibility
. Q$ w. l7 |5 C;;评价可信度,每次交易后都需要更新' Q' o; Y& l& V+ i D. A
credibility-all
0 T" Y/ J5 `0 t' e;;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5 ~1 Q! Z4 S0 \2 q1 E. }
4 |# R6 z0 f, @7 R; j;;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0.58 r: I7 B* A/ Q3 s n
credibility-one, G2 {6 I( U# @9 Z W; X& h$ F
;;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: j) U- f0 N7 w9 Eglobal-proportion
7 x9 ~0 J5 ] C7 l4 a Pcustomer
- b- M" ?5 [2 M% r7 E& ^0 ?# `( hcustomer-no
; v5 |1 I8 u" itrust-ok2 U7 b3 @2 Y+ r3 m* t8 ~* T
trade-record-one-len;;trade-record-one的长度3 S4 B- ~$ `2 i+ v
]$ q8 \ x; Z2 r
# V9 e' I: a. i; V
;;setup procedure
0 |4 n {. p8 r- i5 R
4 k4 c; G( i) k4 e2 h: J% ]# d+ x6 Mto setup
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ca
) f$ B5 y2 ]4 C2 p. t+ d3 A* n) y8 W; S s* c# a0 t
initialize-settings; E6 b( w5 |+ r2 }
& @( M2 D3 I2 `: t: E" Y; {. S D4 R
crt people [setup-turtles]
+ l. u( `3 f0 m# x- }! y
: b' {# p! N: d! m `( C Nreset-timer# g2 x4 L2 d" M& H
4 v9 R5 p9 s/ d" n" x) \poll-class2 O! c) \" i# ^' N, }
0 _( ^' O- y/ R, H5 W8 u7 xsetup-plots1 d }8 N D1 Q1 V9 W. |) G
3 y& X2 g% U9 D% U) ?
do-plots% Y1 o+ F; I7 V! ?2 l. O
end
7 {# c# f6 E) i: E' f" |$ M* Q, C* B2 d l( a, \" |
to initialize-settings
s' u+ S, Q! ?; x( s
- \! n* V. J' P# @set global-reputation-list []( s7 H% b. R/ E+ _0 t: N% E
5 l* G! [/ `* ~0 C5 gset credibility-list n-values people [0.5]
: _. x, _( N' _+ q; l0 U4 n/ D K9 e& V2 Z" ~: V
set honest-service 0
: g! p3 N* Y/ l$ L, b9 L0 b
1 L+ c8 p7 j9 K4 @$ |1 sset unhonest-service 0
* h7 Q. I4 d y5 a
2 d. E+ }. R6 k* t$ r9 M0 mset oscillation 0
+ ^& K. H; n! u1 m3 P( F5 F: L# j4 K/ U3 K) I! y
set rand-dynamic 0
' a% }# A6 b ^4 [end
6 P* s5 U. q) E
9 K' B7 `( o' x6 V) V" |: |$ _2 bto setup-turtles
0 \9 n4 m# b7 s" ~8 _8 s, hset shape "person"
: c# G1 D/ l; x/ ~' ksetxy random-xcor random-ycor
+ y6 X2 Q7 q" G0 [set trade-record-one []
+ @& N2 R5 q% r3 O( P+ e& v, g7 D6 T8 A
set trade-record-all n-values people [(list (? + 1) 0 0)] " m/ Z6 E" d, {$ L
2 }5 ^5 g) o7 f6 u. W; U( y0 p
set trade-record-current []
4 \2 f1 X% L+ J* hset credibility-receive []4 ?2 B9 [( V0 x9 _
set local-reputation 0.5& |+ X" N8 ^5 z, @- Q* s2 H! d
set neighbor-total 0
' O, i b0 }$ D9 X6 iset trade-times-total 0* [6 Y2 w2 I) r' D7 [) _
set trade-money-total 0* S Y7 s" i! F# H; \1 o- J$ R
set customer nobody
& V5 z( |8 ?2 A' r& `- p9 m4 e, Rset credibility-all n-values people [creat-credibility]
. S1 J& G8 O2 g2 p! i* I2 {% W- Aset credibility n-values people [-1]3 H8 ^* J* X, V; P ~! b
get-color
4 U- Q6 S0 K" b4 ~5 F
6 a/ h) ~+ ^1 }+ F; t) b9 U7 Hend
, z' `7 P* j( G
( N& ] X A+ nto-report creat-credibility7 t0 A6 k+ t( g& b+ R& E' D. X' p& T
report n-values people [0.5]/ @$ j* t; X9 ~( R2 i
end
- u* @- m7 O$ b: H' Q1 f; y5 d5 v
4 W: W, v k' |% W5 x( yto setup-plots
/ z1 u/ V9 g! O9 E9 @
& w& V8 ]' J/ r3 gset xmax 304 q3 }$ ?$ [+ E; b* ?- c
1 o! M* c; V& gset ymax 1.0. v1 e4 a* {9 J. O
$ R0 ~6 k4 i* z! P/ Q2 b
clear-all-plots1 E+ U& M4 p9 q! Q( Y9 i7 d/ a
+ Z$ T6 `1 D4 @/ W2 [setup-plot1
b+ p9 O0 i+ ]' F5 ?/ ~2 z7 u' w) N6 p5 L
setup-plot2% B" U- D4 c0 Q- @- }- R/ d
( a2 y, V; }$ Gsetup-plot3 k B# u/ M4 o! [3 x( j1 Z
end+ p/ ]9 @+ N9 V2 ?6 A2 F
3 p% H% { ?/ m; ^) z# D; A
;;run time procedures4 N' P ?) ?8 y/ L$ [
' T; d/ F' r" z; O: S- _2 ?to go* i+ D5 `& o" O
3 I- Z& ^ q4 w2 Q4 @; vask turtles [do-business]
* x q7 Y% b) F/ R7 w7 Mend
* ^1 @2 n5 o u' G) A& s) O( ~8 b( v! l, K: [1 N
to do-business
0 l3 S" S8 l+ }9 K9 S: ]' A! `& k' ]0 J" h; c
" `0 y) `! ^ i3 ?4 I
rt random 360
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fd 1! K. A/ |) G r% `: O
6 H7 b! W- v! K% `
ifelse(other turtles-here != nobody)[" |# M9 g# N v
" z7 Z6 H7 Q; e2 \set customer one-of other turtles-here. J, }/ S% q+ n g
5 c* w" m( ~) j, w;; set [customer] of customer myself, G# `+ e, W4 v( y, `8 Y
" s7 _( }7 H! M8 R M7 i, W
set [trade-record-one] of self item (([who] of customer) - 1)
# B! r8 f4 @$ c; M; W[trade-record-all]of self& N4 W" `3 @+ {+ o! P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ s9 i# A& n8 ^
4 }% Q, y4 @6 |7 J1 W9 o! Q P! ~3 T
set [trade-record-one] of customer item (([who] of self) - 1)
, r: e8 }& m6 }1 X! q% L[trade-record-all]of customer
) Q! S# x: u5 Y0 q' T/ {
3 S% x e0 n2 j Q5 b1 wset [trade-record-one-len] of self length [trade-record-one] of self
( D% Y2 B& h" R: q) I/ c" [0 v& p
8 q s2 n4 Z5 l8 q+ Hset trade-record-current( list (timer) (random money-upper-limit))
, v0 ]! F C+ I: U7 |5 o. J0 [& c* z; ~
ask self [do-trust]
+ H" D. h X5 ?; M j* S;;先求i对j的信任度* I1 Q( Q$ |' ]+ O) m9 m8 ~
* W. A X" w) c I% n4 N9 W
if ([trust-ok] of self)
" p: F* |! z" E( P& W;;根据i对j的信任度来决定是否与j进行交易[
- i3 \; A& }* Rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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7 V% C o, H6 M" p( k3 H[1 J( M) f. _* n S- ~/ i& W
7 g+ n, Q* i, zdo-trade
% D" l* ]$ }9 {8 m5 w9 \
3 e8 `7 a) f9 U! t/ A: hupdate-credibility-ijl
8 A- ?, D% n2 Q' _' _) y
$ O0 d$ f& W* i. s/ E& H5 cupdate-credibility-list' Q: n- y" t& N V6 t
% A% C6 s+ |& u! y9 w' L) N
. t' _% Z R3 n) t% W
update-global-reputation-list0 \- s, I* @% P7 B1 B/ A) [2 r
. g' A9 ?8 u2 O% Upoll-class# m8 D: i& v, G& J
% _2 q( S, M/ ?; ~$ I
get-color
- F. J) P6 N5 f- i0 n; o" f9 o, i8 L
]]" V$ W5 |& o( P
; g! m d" F. v9 q6 M. _/ V0 H;;如果所得的信任度满足条件,则进行交易! V$ {# M9 E5 U0 W3 M* ?: K
9 `5 p: i8 J7 ^4 H[
- q7 \5 N0 }/ j7 ~* {! w4 w z9 S* |9 [ t7 B5 I: C: V* \) B- {3 C6 I
rt random 360: f. |6 Q! ]4 f$ q
9 [6 `$ I+ V4 }/ z x& pfd 11 [4 l2 Y# ^' V
8 b9 H# G: n' R# l- f2 @
]
6 ?1 n x3 [" ~$ m
: D4 I! v' a* Rend
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to do-trust ) i% v3 }8 m, D1 h) e* `
set trust-ok False
( [3 r$ Y- E" p6 U R( ?4 s# z
. N. j6 ^3 P( K. v
- y1 ^, w8 P& w) Rlet max-trade-times 0
5 R$ j+ E5 e6 N0 E" sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 |& o# l8 M# e9 V p7 `5 A
let max-trade-money 0
. a/ F8 R( D S. @2 ^$ Q) e! a5 Fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) k3 s! y( z- B- Mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
D* p: d8 n: o( i+ x
# _+ t( ? V# d! X) e/ j% l" _+ |/ N+ U& i) P* i& z C9 h: i* a. m W' ]
get-global-proportion
1 ?/ z- ~; i j1 X$ ^# Blet trust-value+ \+ J- {0 ]8 a _6 B/ P& E
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)
0 @' Y' ?# r1 ]3 aif(trust-value > trade-trust-value)
: {/ Q2 X# E; b+ L[set trust-ok true]) i3 E+ a% ^4 [+ U X5 {" g1 K
end2 u% ~. p# _: `$ p* z, I8 ~
) w" P! o) s. N- ^to get-global-proportion
& ^8 `( K1 @* k- Q& D2 G: |8 E; i5 Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. W. K" O Z, @9 b[set global-proportion 0]9 z$ C( L* e$ u6 \2 M% R" ?
[let i 0
) g4 f% c) h8 R+ wlet sum-money 0
! x: G. e, u% Uwhile[ i < people]
1 |" A% I! j4 c" t" y[
6 S# I3 z/ y) gif( length (item i/ b6 \7 Q2 k' }
[trade-record-all] of customer) > 3 )
% u2 T4 O2 E; j( y% V# z[: ?, Y0 L0 E" Q; V* M' L0 V
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
8 ? r* x8 x7 b0 H2 j]2 \* x l W6 `/ a3 `
]$ |+ j* S( c. F7 Q, m2 k
let j 0
/ _+ A; C: _2 \2 Q0 P. ~ [# i* Llet note 0
/ Y- }* j! D7 n; m9 D& z# i5 \while[ j < people] s" h3 B. r& k
[
# H" Z) `) E# l! Q$ Sif( length (item i
[. S) l9 n" s4 P+ k8 \2 c[trade-record-all] of customer) > 3 )+ m* X5 Z1 B: c7 K( h5 U+ f, ]. ^
[
1 _; O4 O( }7 p- {0 @+ \! qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 i1 f) K8 I) S1 z5 m5 O9 V/ A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( _7 T/ s* l- ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 _% ^8 _# g% S4 H0 L
]% t) b! G4 n) Z) S9 r
] C3 D8 w8 D: Z( [' ]3 i# `
set global-proportion note
% {8 S y e7 w" m]
% @( n. O! a- P4 `' N) Rend* h( Z2 Y( W, ~0 O
# r/ V/ l! H! r$ y0 ]2 O8 z7 {3 u
to do-trade
8 t: w7 l1 X% L# f+ g;;这个过程实际上是给双方作出评价的过程# x, y- C8 p9 i# {8 i4 B
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 F( K# Q- K. C: ]% a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价- j! B |, s$ H! S9 \* f
set trade-record-current lput(timer) trade-record-current! U- C; _( X& I' l: Q4 I- \6 m
;;评价时间
+ ~' @% V7 Q& r) ~ l8 q T1 F: iask myself [
. B+ H5 h* S9 X% Iupdate-local-reputation$ O0 P u, W; ~' i! y& k( f
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 n6 l$ m1 v+ S* V! z& U]3 W& U+ s2 ?5 l& \" n
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! n0 O! `! r- y, U& R4 n( W4 R$ V;;将此次交易的记录加入到trade-record-one中
: J, D4 `" E% [ m8 pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 Q9 z' {4 I% Jlet note (item 2 trade-record-current )8 \4 \- ]; \% f- W A
set trade-record-current
G E* N8 r$ h" n- G1 _7 v8 J(replace-item 2 trade-record-current (item 3 trade-record-current))
, {0 a6 [" \% {3 N8 @$ ?6 fset trade-record-current0 m) K t9 y& K( Z, g
(replace-item 3 trade-record-current note)' [$ R! d- H' _
4 I) J& E; A8 b' K6 w) t
# A) I. [3 `2 u, i( ?4 Z' D! oask customer [
; m0 A3 U! Q3 G8 t* H' q: Jupdate-local-reputation% c: h5 \ O3 F: _
set trade-record-current
6 j) L0 w+ j( s7 T. X/ X; e6 r(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 @ _1 Y- A4 N6 N0 I; @& ? F
]. w9 y* K9 T& H2 Z" W
, j8 e# J' r- f* d2 `4 F2 E: |) g) g/ e* \: h$ R/ A k8 W% {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* P( b1 V. H: O. R
6 R5 q9 y& @4 W9 k/ V+ cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, u2 D! o) T% d# C$ c;;将此次交易的记录加入到customer的trade-record-all中
) ~) a; W/ w. t5 bend
' s6 Y+ j6 w! R
. h0 O- C) y |6 kto update-local-reputation$ r% O8 F& E9 h
set [trade-record-one-len] of myself length [trade-record-one] of myself
( l' g, J! I& Y( e. p( }3 f
8 D* J# f" B v. G1 h8 c
$ R0 ^8 K4 u& z2 O;;if [trade-record-one-len] of myself > 3 6 X2 S/ Z0 X- d* a8 e4 }
update-neighbor-total
& |- |" X) K0 G, r. Y;;更新邻居节点的数目,在此进行
8 h; U6 Z2 L9 Y* F/ D4 |; Blet i 3
" u# a8 |/ K* i! ~% rlet sum-time 0
& u1 ^6 i6 G ^5 h# m( Gwhile[i < [trade-record-one-len] of myself]
) {) ~ d6 L: I[& \+ E3 q: b1 F( ~5 T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. E- g1 D: Y' g5 m* @2 ^set i
3 w5 y! N' c& L) d# t5 q3 q( i + 1)
" {! o( U/ L7 k; E3 X8 D0 c" r, `/ q]9 T! {' i9 n0 S$ u: v. U9 r
let j 3
1 i4 R% [( e: I, v# b, Rlet sum-money 0
4 \* o& Y- R x! A! T- z# S+ V1 `while[j < [trade-record-one-len] of myself]
) {) z: c' X: O' E. k ][
' O0 y D* {& A, ~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)6 S) P8 g" t% b" ^# b
set j
/ Z1 t6 I9 D4 s/ P3 Q) C( j + 1)- a5 ~' p$ D8 ]! a: v1 J
]5 ^, \' v, {+ I* f, D9 {1 {
let k 3
- x9 g8 J$ e* h1 Z% Q* b9 qlet power 0
8 O6 P) R6 E5 @3 r& d6 f7 w; vlet local 0& o% p7 h! b4 |0 B3 T( F+ T
while [k <[trade-record-one-len] of myself]
5 y1 p5 \4 l( ~; S: X# n[3 G# b5 I& G. j
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) ) E0 V2 e, g& d1 v
set k (k + 1)
7 e7 i. c; i) E]
+ l" j( D. ^6 J. b2 J' iset [local-reputation] of myself (local)4 m# a1 U5 Y# X& f
end0 \% L) z2 ~5 d7 c
# J6 e) m: r7 b6 s" I% U
to update-neighbor-total
+ |4 w& q/ `3 w5 E+ [8 c; ]& Z9 o6 I- Z! Q) Z2 `: e& i9 K/ {
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* o, j) G0 T! \, W) g4 v
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3 q) l- E" U5 G8 Q8 rend
' c) Q+ e* ]3 R. u5 T3 B. P1 H2 H j- G; Q A M
to update-credibility-ijl
: u8 e* i$ j0 \6 y. q3 }! Q! m& G! o0 h" i
;;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。% I& [! ?$ n4 o( { `
let l 0' a: v& }# h0 H$ p- d* S' p
while[ l < people ]
) M1 r' }. o1 W6 k0 `' @& \* z;;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2 t. {6 t7 h1 R0 o' F" J5 H
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 c' S8 s0 W# ]* `if (trade-record-one-j-l-len > 3)
2 A, q4 W& m. Y' g: R[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# o0 m: f3 h8 B+ z' s4 r. M$ L
let i 3
* _7 O0 a" A! B; [/ Z- ?let sum-time 0
2 n% k! C+ J. c& U) e4 Lwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); K' H9 r3 f$ f) L
set i
$ h2 i5 z, x! T5 k( ]. \/ e( i + 1)3 t2 Z1 j/ V a7 U1 z; h1 N
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let credibility-i-j-l 0* w/ N k: ~# `4 `5 }
;;i评价(j对jl的评价)0 ^ M# Q" j& R! R/ k4 T+ Z
let j 3
. U- B4 o8 s. a2 Vlet k 4
6 Z- c- t5 b$ j! b2 v& ?" twhile[j < trade-record-one-len]
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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9 i$ M$ d3 e+ {! ]" N
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)
5 I* }! x# u) p: u* V3 F) Fset j, }: `- J6 e5 T4 ~9 J. s
( j + 1)
e/ J6 |; I# M, N' V G- p; d], L: Z7 b- i: Y8 b8 p6 M' ^
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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! i' ]4 `8 v p2 D;;及时更新i对l的评价质量的评价
5 _3 k" j% p4 q" G1 m* ^set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 m. K6 m H/ ~% w6 @! V# v( \3 aset l (l + 1)$ e, p: E0 u$ E+ o
]
& }* `% V# w0 N3 O% D, O: nend* Z9 c) m& O* L H0 w5 u; Q
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to update-credibility-list- Q( m% E t4 f
let i 0
& j' l& _: n* C# S2 x) h- wwhile[i < people]
2 y7 n, V: k' R% V4 x1 E; x[5 j! y4 i. D+ [
let j 0. w1 Q2 b0 I2 Y f0 Z- A
let note 0$ M4 R0 M' N# H6 R1 V: W u- o+ W
let k 0
( X, U" |- x4 D8 J5 h;;计作出过评价的邻居节点的数目/ B" d% n: c. B) o( z3 C
while[j < people]* t1 t, i. l& |* X$ E0 H0 Q
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if (item j( [credibility] of turtle (i + 1)) != -1)$ p3 t) g8 y, A" x U4 E C
;;判断是否给本turtle的评价质量做出过评价的节点
1 J, X9 |6 S: ], j3 b |$ H; i[set note (note + item j ([credibility]of turtle (i + 1)))
) k9 D( ]: Z7 E* ^# Q3 A$ m2 ?;;*(exp (-(people - 2)))/(people - 2))]- n0 B$ K4 @# V+ d' q' y ^
set k (k + 1)0 ^" A0 y& F: I, l- m1 X# h
]4 F d! I5 @4 b! H
set j (j + 1)
7 u0 E4 ]' `; r]
: T5 T0 m% R# f& u2 t N5 P% Sset note (note *(exp (- (1 / k)))/ k)
3 v; B4 c& B( S# B/ }0 N! Rset credibility-list (replace-item i credibility-list note)
5 [0 ?! D" ^7 H" p& v; aset i (i + 1): K' \( S) j; V9 N" S
]/ }# l2 C* u8 d0 o6 K, {. K# M
end, Z9 j6 R. `4 y4 ]& a3 ]
/ E1 J4 r0 ~; @- rto update-global-reputation-list
: D B" J" a& jlet j 02 P: O, @: `9 \1 y
while[j < people]
6 t7 @" o' {2 j- {5 W[
8 k: R- m1 n6 t5 ilet new 0
1 g+ k# ] q3 H( s+ _' g* J p; @;;暂存新的一个全局声誉4 F# N' S. s! Y9 j& r
let i 07 G% G1 Y% ^+ e4 z- F. @6 S
let sum-money 02 o# m8 I3 H) {
let credibility-money 0
( Y/ E: \# B @3 z/ g9 S2 v/ R! Kwhile [i < people]
& b6 v( L, k. k; v: {# K/ V- X# l[
* Q/ t' g* ?4 w0 `: bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& b! X' q5 H* _/ s* f0 G! a3 Qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 P( D& ^9 v$ d# _4 Wset i (i + 1)8 j' \0 a5 n& W V- @0 T& }: |) m
]
. g3 k \9 x, l+ Z) A" q8 L% Clet k 0
9 D2 ~+ N7 s+ j4 C8 @6 S3 e) wlet new1 0
; ^( @8 h7 { I7 uwhile [k < people]5 n/ n: }! E1 n+ ]
[
% T9 C) [) u) h( \# Cset 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)* Y% k4 N/ I% r! F6 }
set k (k + 1)
" W4 [; y& Q: s5 T1 O/ h6 v]- E) e6 d" `; B6 p6 C# S& E
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 j/ T8 M" k" s' W$ H( ~$ x; [
set global-reputation-list (replace-item j global-reputation-list new), ?0 q, I; G1 n+ s
set j (j + 1)6 S& d9 C4 }7 W
]
2 V6 `. p6 E8 f6 wend# Q) j' z. R/ s/ R8 B7 f% p' T
! I" w7 {$ ], I C5 |# C: M2 _% K: q7 B" T5 I' W; j
% ^; V. S" g# \
to get-color! W% q, ~9 H v! K5 k6 H. B( T8 ^
& N1 g5 p$ N7 J* v- z
set color blue; |& }3 K7 K8 l2 A& `7 L
end
" g# j* t. U$ [2 u' v; |2 w9 b$ S. G5 ?" N ^: ^6 e
to poll-class
5 T c; ~! x( O N; ^: e( \4 Hend! t) p* p4 ?+ y" x5 Y9 R" a% }
0 k! m7 C) H( i4 H- a+ @to setup-plot1
1 |& k, K* W; f$ L( A" S+ v* T: x# l; l1 j' J5 G" r' k
set-current-plot "Trends-of-Local-reputation"0 z# W4 E% R# S) C& J$ Q- W
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set-plot-x-range 0 xmax c( h. S; q6 ?, e# X
2 |" u$ u( d2 a }* v5 p1 @, bset-plot-y-range 0.0 ymax+ I2 z$ e- G- s/ t! \9 h$ a
end
- {0 U0 h: u2 a- \2 p& l Y
* I( w0 l, l) ?8 Ato setup-plot2
/ C8 ]( e# C/ }/ H8 @5 o3 m
7 M& z a' Y; D W6 a$ H; S' jset-current-plot "Trends-of-global-reputation"
$ t+ |. B/ [. d( h7 U# p1 a' n
1 C' z4 c6 X! D/ ?! _" t3 vset-plot-x-range 0 xmax7 M" g |, Z8 u' P( w; j
: P, G' U! K8 `" Q
set-plot-y-range 0.0 ymax, q: i* J: v/ X( W
end' H! W: R# O- ]& D, n5 W
0 l! T8 {& ^2 dto setup-plot34 r) d: H* P: U
~, v% t3 J2 R- w: L: K7 L7 M" y; yset-current-plot "Trends-of-credibility"0 ?/ t5 G+ A" l7 Y
) t% T% K- E- i2 y7 a
set-plot-x-range 0 xmax
: P# w. w9 r7 V$ N( N6 O
1 C+ b# Z4 |, g& X( jset-plot-y-range 0.0 ymax
; F. Y- w, N$ X& _4 w9 send+ [: G6 f% C. K' q a1 S. { a( L
* v3 S& j% k: N4 d6 qto do-plots3 @, L- Q+ x/ f1 I( K2 e
set-current-plot "Trends-of-Local-reputation"
) h/ A& m$ l k' s+ Oset-current-plot-pen "Honest service"' X5 t# ]7 c) S; d9 D( m. c1 ]
end
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" [9 c, R" f' a7 w1 _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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