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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
5 D9 ^* Q0 e5 S$ M, c6 X3 wglobals[7 d9 G/ }. ^/ O d
xmax6 J b' {7 i, \: y$ ^. R$ {2 j
ymax
: G5 p1 |3 b* h& H( _; Gglobal-reputation-list
/ W' {" S5 j' l9 n; \- J
( g2 d6 E" u: u8 g2 g% m9 S;;每一个turtle的全局声誉都存在此LIST中
2 w0 }( D8 G* p" v5 zcredibility-list4 v0 _, }' w( ?9 Z
;;每一个turtle的评价可信度. O3 N- p/ e% E5 R- o
honest-service* g/ u1 B' N, w1 p+ _
unhonest-service, d) d* C g; \! A$ }
oscillation1 g0 G0 e# z1 f- N% J
rand-dynamic
7 w' l& m2 @9 J' f]
' Z, |: h& D( J3 _5 o, G( a2 x- `( L* o5 J9 W6 u0 \
turtles-own[
* [1 W, w7 M, ?7 W' o, Ntrade-record-all
9 X3 n2 t% g q+ b, g+ \6 W. s;;a list of lists,由trade-record-one组成
8 C, A1 B p! b5 W( Y/ N- p2 Ttrade-record-one
8 H" e0 N0 u. 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" H: C1 f( P; |; R; Y+ J
9 i# n- x! f* g+ S+ s0 w: f;;[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]]
: |* d- q) e8 C9 ktrade-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]
, t% K1 G0 N7 A# wcredibility-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
8 _4 h0 g! f# q% ~7 F Z% ? q, @* |neighbor-total* g3 z0 K$ L. U! |
;;记录该turtle的邻居节点的数目
; a$ u) i& |1 F4 K) F( e1 ftrade-time1 T7 Y Q' H7 T
;;当前发生交易的turtle的交易时间
5 A7 l6 G4 v6 [- x) p# Vappraise-give
+ W/ D+ C* Y3 T& J1 l$ d' } L9 y;;当前发生交易时给出的评价
5 s+ g- ]: y0 M, S9 Wappraise-receive% F# h; f5 P' T1 o/ v; F' D4 g
;;当前发生交易时收到的评价5 ?) [2 S& b5 c& W W
appraise-time
/ w) K7 ~! w& ?/ {5 N8 W4 x;;当前发生交易时的评价时间
" y7 K( h" y2 L/ rlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 t- p$ X; z" }$ r" J. r5 X2 otrade-times-total9 m- O7 A, O- L/ B" t) N& O
;;与当前turtle的交易总次数
6 G2 _& D& r3 i( ltrade-money-total
# ?- o7 E2 g6 E( X; K. d5 d;;与当前turtle的交易总金额
. m" v2 b M& u& Hlocal-reputation8 f) ?" }' e1 h7 r( V
global-reputation
: k1 A% E! E# |credibility8 P/ a0 w1 |: t! b7 v ]# M( ]
;;评价可信度,每次交易后都需要更新
9 h8 b2 z# u$ Z; r: D$ @credibility-all0 h) J4 B) [! j
;;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
, D7 M! Y9 R) b2 ~ D
9 V9 W4 x5 \% s;;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
( _' t8 I# S: H/ Y/ q" m8 x- k7 L/ Lcredibility-one
- ~. Q. Z% X. b& l: a: z;;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+ Y* n. F+ O3 _5 A, k" L3 `. o
global-proportion. [- ?7 I/ r& l/ A( `6 X
customer
, k6 e1 L# S2 q: p0 T* gcustomer-no* F4 Q8 l# m' m: K1 C; M0 s
trust-ok- g v$ {. T9 t9 h1 q
trade-record-one-len;;trade-record-one的长度9 [# V6 W* N/ M+ z; `
]
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+ ~' Y3 [" J! T; |7 L0 `;;setup procedure
) N5 d. f# S5 S c" F$ o: R8 b) v, x' [6 a$ f2 G: T! j! H
to setup
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ca
5 H* Q1 q' `- S/ Q/ z5 _3 w' M
" z7 o% j) D( R" q# q" O0 V3 X$ ninitialize-settings5 G& ^3 \+ q; a- w' F' ~4 j
) w" ]& @' u0 Icrt people [setup-turtles]# ]7 J# N* |" T- [+ y
( s4 g2 b! F9 J- Zreset-timer0 S; a: Q% f' u' j' X( f/ O5 |9 J2 I
4 C( L/ Q4 P" m$ A, Npoll-class
7 w# p1 w& X4 H' Q, ` |6 i1 [" Q5 A4 |/ Y
setup-plots; W' A8 y/ t/ a. H
3 n! H+ i) v4 L( ^# W6 y: C- Vdo-plots
: N q' O- a; Iend
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to initialize-settings6 i; ` x& h' r) d# ^
! p" { N: c. F" T' Q+ b6 ?set global-reputation-list []
% `0 z" V! ?& ~4 T6 P3 F6 Q4 d5 ]' M/ E6 B. }+ x. B4 d' t; A: h. J
set credibility-list n-values people [0.5]
2 m* E) U: T, b
0 t9 D! z4 X% N6 _/ bset honest-service 0, c, }7 }. Q' R8 k+ w
+ n& [$ S2 x1 L# _
set unhonest-service 0
* }2 D/ u+ z# ]( F8 ~% D; p! L3 N
5 I/ {/ X# r3 Uset oscillation 03 C" S2 B" `0 @- S% y; L
/ h4 g/ \) ~, v) Tset rand-dynamic 0
+ ` h3 t4 @4 x* j$ m* ?end+ V3 H2 J3 \* v5 H4 y, p
6 p; D2 j) s* o" M" a z
to setup-turtles
- f$ e2 N% l- xset shape "person"
: V8 v7 O9 j0 Isetxy random-xcor random-ycor/ L/ U3 N- P" A
set trade-record-one []
% H4 o" ^* j; N4 o1 O8 r% H; `4 G7 U8 f4 M9 V" s' }4 m
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
- {; V* N" L( h, m5 c8 N' ^ \( J( Z7 c5 uset credibility-receive []: a- D$ u) h+ `& f3 n2 |% k( e
set local-reputation 0.5! w2 o1 S7 N; |4 ?3 e. P, ?" a
set neighbor-total 0: g. e" h$ g/ B5 e4 d1 u; O# @, J
set trade-times-total 0' p6 f2 g6 u C! [2 C
set trade-money-total 0
. [) z6 M6 R- q/ ^% i! f4 Y2 nset customer nobody
$ V. n% x. t# a+ g W- V7 L. v8 }* \set credibility-all n-values people [creat-credibility]
3 f2 O6 L4 |9 n/ pset credibility n-values people [-1]
; ?& I1 g& v3 D: J2 H" z }: s8 Cget-color9 N* U! k, F7 h- R3 b) V& y
6 N8 |; l! d `6 U' s4 f" U
end
" c$ b8 y$ M- Y. b9 \: [- G9 k) x( l/ O2 j7 S% [" {
to-report creat-credibility3 @: R3 W5 V& o/ F) Z- Y
report n-values people [0.5]
3 H: u7 ?8 x9 _end/ Q" t5 W; [, J- l' o, i
8 A2 p- k9 L1 h5 ^* ^( t
to setup-plots+ {- _; Y7 g+ Z3 |
5 V# U- h, ~& A8 v4 f" D
set xmax 30
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( k6 h; _& S- _; c$ _set ymax 1.0
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/ R2 k$ T4 ^( E* a4 Sclear-all-plots
& O7 q7 Y$ v; @( E& W8 l5 l7 j, |. }8 ~6 W, z
setup-plot1/ l% J S' w7 c, |9 V
* }: D4 Y6 C$ B' T% _' zsetup-plot2
$ j3 y9 ^. b( w! |% C
: W# \* ]. O/ b2 Y; e3 tsetup-plot37 w. ^& i2 N) N8 V, Y0 {
end2 H" X% T: d" G8 }. U+ c8 X
+ q+ X& g$ O- X: p" {! O! f$ \: t0 X;;run time procedures" G0 r4 ~3 ]9 Z) H$ a$ e
6 |/ l1 t' [% S1 uto go
* g* \' N8 \8 w* m) p4 T
4 `# U" U0 b5 W% d0 @) D u! uask turtles [do-business] @0 I4 P" T7 \- [3 e, F
end
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6 g1 y5 S' \, R, v$ Oto do-business 4 Q; I7 a7 p% {- N' J+ I
+ G3 p) a$ l, o! H3 j& D( r% H( \, u, v! b- `' z
rt random 360
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fd 1
[. y% d5 Y1 q$ ~
- k! `: b8 `/ k. D: l. p3 iifelse(other turtles-here != nobody)[% I2 E2 `% A& F; b$ S( X
- v! u7 A3 a" V2 e O+ eset customer one-of other turtles-here
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# P4 _. i9 f" F- s7 I" X- @$ H;; set [customer] of customer myself
4 M0 ^5 X+ B+ b& N! R# R" E2 u$ a4 b* i* ]
set [trade-record-one] of self item (([who] of customer) - 1)
) s# _) S% n2 H' V9 j) t8 s[trade-record-all]of self
; D. A" Q8 m/ s" W5 v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 j) \2 ~( ]- l4 o( D- a) x& Y8 x
9 Y: y2 O3 v' ^- e* K+ x4 d
set [trade-record-one] of customer item (([who] of self) - 1)
( F- l" U8 ^: e! e5 @$ E[trade-record-all]of customer
; e* r' x$ U5 @
# y: W& ]0 y3 k8 A i& mset [trade-record-one-len] of self length [trade-record-one] of self3 I$ b' v J7 {5 y
( {& h+ a# r% _1 k3 _' oset trade-record-current( list (timer) (random money-upper-limit)) q! D( ?* Y8 V* \& x% s
: m1 [3 ?# d" A6 jask self [do-trust]$ w( s w7 y- |% v& |! m
;;先求i对j的信任度
, t1 }" `6 i+ u
+ P+ R1 u% L e( @0 z, ~if ([trust-ok] of self)
- V0 F/ o1 A3 |- ?! ?;;根据i对j的信任度来决定是否与j进行交易[* e; m6 X$ A" |/ I' A" w1 S$ X
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 P, m2 F8 _) ~8 Q: ^
- n+ U0 [: \! J$ A[. [) P% f4 W* y; S# o: a0 _; y0 V
0 r: p I% D+ ?" f8 j* \" S- udo-trade: b% w2 U3 j; ^1 N1 p
$ d; Z1 N6 R* S$ E8 n
update-credibility-ijl
" P/ t7 k0 [9 E# R6 @
& p3 Q, t, s: ?- b) K/ Fupdate-credibility-list
3 D0 M, u% b1 U3 I" Z3 C
- {5 t+ Q Q3 m; P! D2 f1 J! M! A$ q/ K7 s1 q. }. h- A* I
update-global-reputation-list' g4 [& f3 n& d( [& k5 i
/ f% B4 R q+ |$ ]& B( g) ppoll-class! ]) T7 Z# e! x" ]$ i2 c6 E
$ _: Y( K! a9 N: f3 rget-color @! ]$ ~. O8 `" Z
@! S8 ]9 r* q3 W/ @
]]) U# N# p3 {1 B3 {+ a: Z
: v$ @$ T8 {1 Y/ U
;;如果所得的信任度满足条件,则进行交易
; z, x* N( T# H4 K
1 c0 t/ r% Y; s) b* m9 z[/ N( Z) _/ W" ?5 K( ?& E; c
4 ?* [: ^0 R# Vrt random 360
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fd 1
V8 ~& ?" ^) w6 u+ T
& M" P* S. `* O. H]
; o# Y/ K# j* m. H' Q* p: x2 Z
& B. Y$ X4 T+ y; g; {5 B) ]end# B+ z! d# u2 \/ P0 m( J! K
4 ~& T. f- }) b) @3 b; mto do-trust
# V3 ]4 `- g; \set trust-ok False" |# \+ M# u. r0 g5 l" z
5 \& t6 _# J0 r& [/ [
+ W* a; {1 J; y6 mlet max-trade-times 0/ x5 q: `2 I% `1 b D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ f3 W4 A6 U0 C5 E+ N# ` blet max-trade-money 05 h J0 R. Z. X( X2 D/ h ?
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
i& z2 _, b1 }2 f% X2 N8 Elet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 z. c& U% @. V; \
( F( L3 @ Q" `& M) r* a% N! Y8 r6 a3 g5 r% M6 Y I
get-global-proportion+ ~9 S l. q/ e/ J( m
let trust-value
7 V4 @8 C/ M- H/ W! Clocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list). Y) ~, @1 d: H2 I8 l
if(trust-value > trade-trust-value)/ g6 z2 _4 e: b3 @& x6 Q0 Q
[set trust-ok true]- C9 D) p/ ]0 E4 e
end7 Q) c% t+ m) L' @2 A/ b
4 W# x3 n. b* ]3 H) Wto get-global-proportion" J& ^6 R3 E5 L& y) t2 `3 V' K6 l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), k2 m1 K, y: z: Z' X/ F- H1 i2 J+ n2 Q
[set global-proportion 0]$ [4 b3 D# O4 _+ }0 {6 _$ _' o
[let i 0" A4 k* w9 X" T0 n7 T# j+ }1 X
let sum-money 0
* s* E0 ~( y8 cwhile[ i < people]
# i! t# Y, J1 I[
; M! e& K1 s& bif( length (item i0 C4 _0 @/ M- ]. c) b L
[trade-record-all] of customer) > 3 )
* a! s4 J2 e9 D0 R# t% f& [- w4 S[
# V5 C# D' i7 Y. M! J- wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ O& h; t) K, d]
% g, r& _6 W, E! ]2 B' R& ?]: J! H( P$ R( g+ I4 j. k/ i
let j 0
$ ~2 d- c4 A# h. q/ Slet note 0
7 K4 O( M" o9 \# _% s. ^' D& pwhile[ j < people]+ c' o" s! r# H4 I. c
[
/ @5 @' j; z( q7 Nif( length (item i
& k2 k/ B( d+ Q0 k. C0 [/ y[trade-record-all] of customer) > 3 )" @+ `1 ~5 X' }8 }$ Z) G! ?& ]; r5 ?+ F
[
, f A- J* ~+ ]! \ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 _& ?3 L2 l5 p. Q0 @1 P8 E# W# y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 L2 F, X* Q; T, }) v9 Y- g' |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. Y F. l+ B" p1 O! W* Q" t
]; F, }4 Y T) O7 J+ D$ Y( C, L
]
* c: r. h: q* _( `1 lset global-proportion note: M8 W& J7 s. Z" h9 Q% G
]
) O$ }- a6 |( w/ M' U) U' Z* qend
/ N2 i' n+ Y2 H- f8 Y8 j$ S) h* \- O7 L$ S9 y
to do-trade
; A( X* K3 v; L;;这个过程实际上是给双方作出评价的过程
# D8 V2 v( C" L" f! F/ a& Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 g9 c0 d5 }1 x+ `& lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% u7 B) H# d- d# k: }set trade-record-current lput(timer) trade-record-current- O4 w' N! @5 M9 }( H
;;评价时间
' D" _& Q+ s' V3 V" rask myself [) {8 G8 J' l: _, |' f
update-local-reputation
) _- F/ T# U8 G) w' U( ~/ bset trade-record-current lput([local-reputation] of myself) trade-record-current
( s1 T7 ]- u! n+ ]]$ r; p+ u& a4 a, P4 o
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! B+ n$ j$ u& v+ v- I3 S;;将此次交易的记录加入到trade-record-one中+ @% i6 g6 ^& b* J
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
. R! p1 g# x: B: W# T9 p) }let note (item 2 trade-record-current ), I/ W a6 L3 i: w$ \
set trade-record-current
8 g9 q( U+ ~) B9 M0 `7 T. m/ j0 i(replace-item 2 trade-record-current (item 3 trade-record-current))
' m+ {$ y0 b9 qset trade-record-current' [; P+ l* p+ f& e& {
(replace-item 3 trade-record-current note)% K6 \, }5 i( g3 O3 D
/ G! ~. Y; c% {, ^8 o
: y& H7 B N* P Q6 P2 P
ask customer [# Y4 k. U0 A0 N* |4 }
update-local-reputation3 d9 {4 N) d. |
set trade-record-current
! `7 b- u6 t6 j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 K2 l: L9 e3 u$ W+ b( e6 O" M]
* s7 z6 u& X [& M) T3 a( e& w
, J5 l0 @6 x" p; _3 e+ G \
# B6 i& U3 a. ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 g' r9 }2 ?7 K# _7 Q6 u4 r
6 t. N; u/ c, f; u6 H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): O6 b' G3 M! F0 K
;;将此次交易的记录加入到customer的trade-record-all中
& b; ]$ F" Y5 mend
( W# S+ p% W ?$ o5 A+ X7 T3 W% H
to update-local-reputation
6 S+ ^9 U% ^+ V% D; O* k* l0 Oset [trade-record-one-len] of myself length [trade-record-one] of myself
4 |1 b& @* s3 v( ^# H; _0 b8 y' Q2 m: A2 Q A) N8 t" Z+ g! r9 n
2 `2 d; `* I \8 m4 p' A$ g
;;if [trade-record-one-len] of myself > 3
3 H$ @4 i3 |3 g6 H) x. q3 f8 y% hupdate-neighbor-total* X; z: p1 x; R- T3 s
;;更新邻居节点的数目,在此进行 g* _$ ^, R; K0 C$ I3 H
let i 3
' r. a! N X1 l" X- A6 {% S8 j Jlet sum-time 0% n5 A: c! l/ j' Y F# T
while[i < [trade-record-one-len] of myself]6 F1 K7 m) V8 U& N5 S# h
[, o" Y& ~7 e+ I( B# A: E& T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" c3 _" W% q% P
set i
( w2 R% \. \7 k( i + 1)
& N. h2 j2 V' ^- @; h# G]
' ]& Z. f2 U; X- B0 `6 ^let j 3, t T) ^& U% B B0 M. ^
let sum-money 0
. l9 _8 U- x4 s7 R" O& xwhile[j < [trade-record-one-len] of myself]
* v' S) q' m7 r6 S' n* t) [% S[4 I) `% {/ x9 ]$ E9 V9 v- P
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 @" f3 u% e/ t2 i+ D1 u ]
set j
6 T$ Y) z _# I: l3 ^% Y( j + 1)8 E+ v8 K" H ~" x
]1 O Z' _5 P) V& ~ x
let k 38 C6 E) G* ?8 b2 {) J$ p2 h: c
let power 0+ n. r7 P9 k" k
let local 06 m- ?( v0 w- E. e
while [k <[trade-record-one-len] of myself]
% a* S+ _4 g3 L' y: U[
1 `# \' I, l! X$ q$ Vset 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) 0 E2 u7 j6 D5 a. d9 {
set k (k + 1)- O4 U8 ~4 e4 k$ }
]
$ ^9 ?) X0 {. k5 i8 j/ t- mset [local-reputation] of myself (local)1 e9 F6 y& @5 U$ i) a0 b6 B" @4 j
end8 z3 I1 e# N3 i8 n+ g
; r, [: o8 ~' F# g) U; Q1 N
to update-neighbor-total" ^- ?2 z* F0 V7 c1 ]& z
2 a& l% ?( }: a+ ^* rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" n3 q7 b: }6 b4 Y2 q# C* _% y6 R& V$ J* b& k9 i$ Q- U
S Z V3 x0 k* s0 c$ m
end
5 ?2 V! h* q6 D8 B7 z* C- |8 D) g' P$ l7 S
to update-credibility-ijl 8 C9 m' V9 v G0 s0 \
+ [; R% E/ V. V;;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。
2 z0 r3 w# N8 L& x/ ?5 Q- Llet l 0
/ R- ^8 S* ^9 _% |9 W+ owhile[ l < people ]
4 Q s. a: a% F6 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
" Z8 P3 D% Z4 {# N! K- d- y7 Y* ~[* t" `7 Z( s* |$ x: R6 y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& W4 ^8 o1 F) P7 rif (trade-record-one-j-l-len > 3)9 B, e0 K. j: q/ v, ?9 ^, w
[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-one1 p, [! r& X3 U
let i 3
# L r! K: M2 q! {( nlet sum-time 0& X8 P4 y7 P+ y$ |: Z
while[i < trade-record-one-len]
( }) ]6 u; y% m' g W A[! ~( L: N! v3 |6 U Z: o# R
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ `/ p: i J: c* W
set i# W5 c0 m1 L: R& m3 t) e$ h
( i + 1)/ t8 E& {5 c. S1 J3 O4 [- z' P
]4 l( H/ N. s' y, Z- K
let credibility-i-j-l 0: c+ D# }: c' ]" z: C" A8 G
;;i评价(j对jl的评价)
4 H6 t+ O" v8 u/ Z8 `# V4 hlet j 3
) B& B# a4 l& x2 n9 ~: W# {* Rlet k 4/ g# y/ M+ o' A( }) G! {
while[j < trade-record-one-len]
! U, x: }( w+ w" P# S x[
4 R+ u& g# `" J6 q8 A0 y7 ]( owhile [((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* ]+ K3 w1 v, X* w% A7 ?: Z b
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)' W* \+ m/ J* @6 E3 `- S
set j1 g. ^( u0 s1 k+ ]" K- {$ S1 \& |. m
( j + 1)2 F9 f2 h# v7 F K9 O3 y
]
9 O( }8 S3 M" N+ }3 G, w0 yset [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 ))
6 G5 f( i% R6 u- y" Y. v: ]: v. K- `2 Y {7 f
) e, F( g: O$ l7 w/ S3 {
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, _5 t& O; A! l$ {4 @) Q# g;;及时更新i对l的评价质量的评价% ?9 ]& A$ U" S% l+ \3 L
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 [- L: x" D1 W' g) \/ Fset l (l + 1)
5 I/ C) |: `+ ~# L]
6 Y: K4 i1 T# Oend
$ Y0 e3 s$ p6 f
; i( {# y* Q. h) Lto update-credibility-list
. b1 y2 \# L# m) w/ Llet i 0
& f8 M4 z V1 |0 X7 d' w% wwhile[i < people]) |7 }/ z4 E& w$ b# D6 h
[0 i# q; O+ _$ b4 |) U$ ~3 `- e- c! w
let j 0
$ w& u7 l* E& r8 ]& |! clet note 0
$ ?, W" U. q( q$ t; _* e4 ?7 Llet k 0! T- i/ }9 ~. D" @# ^: |
;;计作出过评价的邻居节点的数目! p7 w. G' i: W( ]- m9 E
while[j < people]
8 k! L% z7 ^! n+ S4 q[# i8 q: j1 h1 }5 f
if (item j( [credibility] of turtle (i + 1)) != -1)
3 W$ U7 F/ c% T+ k4 {;;判断是否给本turtle的评价质量做出过评价的节点
, p( F, B. r9 _) Z[set note (note + item j ([credibility]of turtle (i + 1)))
5 _3 b6 f5 T) W4 j1 C7 t;;*(exp (-(people - 2)))/(people - 2))]
1 b2 _( r" |5 mset k (k + 1)
) L+ N% p G+ b: _" C]
8 d& C5 k% r* J' gset j (j + 1)
( h+ y, N( s4 p5 T]
+ L+ t! c& n* U# ]set note (note *(exp (- (1 / k)))/ k)
* k( u( m/ X1 U% S* F" Oset credibility-list (replace-item i credibility-list note)
& I9 Q9 \0 Z& |) u6 uset i (i + 1) ^2 p9 a$ ^9 \6 m
]
8 v2 G0 g ` J- {5 I4 Y0 x/ U# Vend: i( |& d7 Y5 `/ ]2 `& P
& e! t3 \( }/ s' F# S# `- Wto update-global-reputation-list
( t& \8 x0 F8 u4 Olet j 02 [, b2 Q/ o" `1 G, k: Q
while[j < people]- @3 t2 i6 B0 v, H
[
% I$ s$ c, O: \$ }& _4 f( t$ h' }let new 03 c d! J! H, {. E: [( |" n
;;暂存新的一个全局声誉
3 v9 f) x+ }- Z& O$ t Klet i 0. n) S5 {- X3 U% t) V& j8 d( P
let sum-money 0
5 \0 y- E, |3 M! w4 s& I! X6 Ulet credibility-money 0, t, o# z) H7 \
while [i < people]0 k& M4 D9 E1 C# q0 c [* Y, U; X3 F
[" S5 [6 [0 x2 @( ?* p/ U& @
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 M3 r6 [# [* c3 E+ Z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 A8 B! B6 Z# z7 q( X
set i (i + 1), W8 L! m/ _4 [
]
8 h& t u. r. W# R, e! slet k 0& l; u( d' R9 M
let new1 0( p4 [5 E. _- n1 ^5 n, l' k, k
while [k < people]4 u. X7 v; \5 k. C" b
[
. S. u, T( g- Y: M1 o, Aset 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)
2 m( [' @1 _0 yset k (k + 1)) h2 P/ E* ]2 ?9 f" T9 b
]
- F4 N4 Q/ V" C& `$ k5 mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * b7 o8 u4 {* H# b! t
set global-reputation-list (replace-item j global-reputation-list new)
. n4 Y) j# T7 [9 hset j (j + 1)7 o- d3 K2 l; `1 y0 S9 D, g* n1 \
]: f7 H+ g0 s; U, a6 o8 ^% }1 m- Y' O
end) r0 v% V* [* p7 d
8 C! Q: [! ]( `% Q) s d G6 A c: `4 R+ G) n
, \6 j( x9 ~0 v+ Y4 x- ~/ ito get-color p P/ n/ M$ u& u
9 M( j3 u+ ]0 A ]3 q" kset color blue
( I: {5 E: W/ f `. jend
. R# l+ ?1 v# ?. o8 x: k# } Y; M. N4 t; l9 F1 N
to poll-class
8 ]8 w5 e3 Y2 S0 Wend9 ]; b8 n/ }2 p) ]
t7 ^1 r$ W" c# X9 y2 ]; ^6 B( S+ H
to setup-plot12 H: Q* E8 r& s+ u# E- G
- }. z9 E) a) N3 ^$ m+ h* M9 \. G. M5 Cset-current-plot "Trends-of-Local-reputation"
# y6 F/ z, Y6 {8 f* @
8 [1 \( Q& o% w s Oset-plot-x-range 0 xmax0 ?9 U5 h- `# }9 I
* ]% O2 h: g8 Nset-plot-y-range 0.0 ymax
1 l/ P3 S/ i! J: W5 }- jend
1 U5 ?2 V% _3 X- M# q
3 _0 {- B2 L3 z' b9 |to setup-plot2
' `% N; z5 O i$ h# |6 j6 \: a. s3 ^& H# m) [; {
set-current-plot "Trends-of-global-reputation"
3 X$ N4 W% ^# R& J3 o. ~7 d5 j
: n0 p7 e# G9 U8 z" {4 eset-plot-x-range 0 xmax
, R$ K4 K: \6 f5 \; q% R! Y) m# H& E- y1 s* v
set-plot-y-range 0.0 ymax
: e2 ?" A9 E" [3 Q) v2 W5 o Eend6 y$ x- F$ D% ~# s) k% q$ `! O
. ]: n# \4 l3 g* j# c; ]* ?
to setup-plot3
: u t) h* ]* d9 J3 z- R
( O9 j' M* G2 J# zset-current-plot "Trends-of-credibility"- q/ M, R6 L+ W9 s9 g0 T* H- N5 I
1 F6 ~, s/ F1 x4 Zset-plot-x-range 0 xmax5 g$ ]# |5 {0 h. F
9 b' l9 I7 V. q/ c
set-plot-y-range 0.0 ymax
( e( s; u$ b8 t5 Z6 |end
- q! d. j N6 _- ?0 o' h0 n/ P: i" i. B1 B; _$ u d w
to do-plots' [2 v: @8 G' _; v2 G
set-current-plot "Trends-of-Local-reputation"
: U! @0 m4 g9 Rset-current-plot-pen "Honest service"
5 Z9 d0 _9 ?. L& h& i# Q. eend3 F0 R4 v, o3 ]4 J( e
& b' P& ?! Q& D4 M/ y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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