|
|

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+ r' O; O" @6 n }0 q' ^/ d
globals[' {4 O. p0 @: A
xmax9 x0 L- X; M3 D- V' o
ymax
: l h% B0 r* g' a9 L. sglobal-reputation-list" u* {7 Y5 l h2 f: r R& A
~0 n8 S( |/ ]9 q5 P9 |* O" Q1 |. R;;每一个turtle的全局声誉都存在此LIST中
/ P8 K3 Q8 ]: Dcredibility-list
6 `( d% T( W2 O- B' n. u;;每一个turtle的评价可信度, D' {/ B& v7 K" I. v) q! Q5 m2 x; l
honest-service
, t& t9 @; ]4 hunhonest-service* g- G5 D D5 n: S" \1 Q& O
oscillation
/ D$ F8 d9 u1 wrand-dynamic
, g2 G6 y; e' T* l]2 F4 ?6 X4 Y3 E, m+ d( y
2 W2 n- E) X& B4 {! ]0 Yturtles-own[
9 f% Y0 E+ v2 H) V1 }2 ~( E/ E. R+ htrade-record-all. \- _% q6 `' F+ l
;;a list of lists,由trade-record-one组成( h2 B% L( Q7 S2 u( D! X3 m
trade-record-one
# B- w; B% p( V4 U0 b2 ]+ F;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 \4 g e- M' ]1 U
4 A( b8 A! ]2 l9 ] P7 P" Z7 h9 a: l b
;;[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]]
: m1 j: H: S) f) i4 X. G" Atrade-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]( a) l6 s, k6 B1 }% x t C0 \' C
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list
; J' |1 f% Z7 M6 ~7 {( Bneighbor-total5 J5 z0 P1 g1 k. g( \9 b% e! b
;;记录该turtle的邻居节点的数目% F1 q2 K4 ^" d- S+ Y
trade-time. p5 G' P+ g; \
;;当前发生交易的turtle的交易时间
k1 b* v* g9 r& k0 r( c8 ~7 Oappraise-give; n1 }5 T: @2 J2 {
;;当前发生交易时给出的评价" V' X; c9 e, c+ S5 w, u6 T! s6 h
appraise-receive
; p4 I0 \. V3 ^/ _! h) Y( D;;当前发生交易时收到的评价/ W( o, @/ f: |" i% M: ^8 a- \
appraise-time
1 ^! Q, d) W4 ~/ r2 K9 s;;当前发生交易时的评价时间8 @( x# `' s9 ~5 e# V$ ~/ Q# P( x& Q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) K5 X9 O7 E- c9 c% t5 P, p! Qtrade-times-total# g( w2 f i- N2 N* i3 X! P
;;与当前turtle的交易总次数
) }. g' U6 Q% @. l. |trade-money-total
9 ^ u: L& C( F& S;;与当前turtle的交易总金额, w* p4 M+ x: ?$ n9 f- T
local-reputation* i, P4 }' c2 g
global-reputation6 a* |: @4 x& a" v& N
credibility, p" d4 o9 g3 x4 X
;;评价可信度,每次交易后都需要更新2 _4 u) I& s5 x' x) |: Y9 _" `! V6 }
credibility-all
: L# O3 s! A5 }1 B;;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. ~+ `3 Y N2 L5 Q: i' ~) T' T
1 K6 y& n/ U v [;;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
8 }' j2 k' p3 {, K0 ucredibility-one
- S7 g; M- ]; o0 U5 T;;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8 R1 c l) Q$ G. c' H/ I) y% z
global-proportion; V5 E; g- G1 T( `7 Z5 _
customer {. ~; T8 i i- ^
customer-no
! _ m! p* T+ Z( I2 t$ H; Ytrust-ok
5 ~% y" m, J9 c. Etrade-record-one-len;;trade-record-one的长度
7 t0 e4 L+ w- o' |]
, ?, ~4 L! |" p1 i0 b
* ?: P: Z1 [8 P2 L;;setup procedure1 Q1 h& C# r; d E5 r; C4 a( @
. j e. a, y; E9 n' w( w
to setup
. b& X! `5 b8 p' q0 K! r0 m" `
6 t/ L" ]0 W3 t. ~4 Rca
6 k G0 H: a& o4 A. c$ h6 l0 V" }/ k
! U% Y. P3 [6 {) A1 i: i2 ginitialize-settings' m4 m( A% j: J( ~# o9 A0 m
; f% p5 A; a5 @# ~5 z: Vcrt people [setup-turtles]: c0 U0 _3 h4 w5 C% _% U
0 s! [1 M/ ^0 \. y3 a) hreset-timer
8 B) b w7 k1 E# |2 E. @1 P# q5 j4 Q; R' |
poll-class" V! v* `: g" L* }2 U& B
% g5 i& u* M5 U7 q" S# g1 c/ vsetup-plots
1 B4 D( M& J0 ^. }
3 }% Q+ M2 x: _: Tdo-plots! J" ?$ P$ i: ^
end
% A/ o- ~9 ^# b4 {
3 r6 E/ ^' J& M: N. x+ j( |to initialize-settings
8 z3 W9 c- M' \/ }" l+ R' Y
5 a, A. C _6 z# V2 U; R xset global-reputation-list []
/ T) J, v8 i; l& U3 a
. j+ A8 [: f) Bset credibility-list n-values people [0.5]
& I6 B6 U" [$ M9 J0 K/ P! }1 A0 m# z
set honest-service 0
! Q$ t! c$ |% @7 [3 T' B+ [! T
set unhonest-service 00 F7 G+ H, p( M0 N
6 b. j: H" h0 F( v8 j/ Uset oscillation 0
4 `9 y! e' ~. ^
/ i. B' `$ X7 j1 Sset rand-dynamic 0
+ ]5 Z# @" {( O$ g4 p/ V8 Kend4 ~& U% k" R+ |- `
6 I m/ s4 o' V/ ^+ mto setup-turtles % P; I$ P1 L! z3 O! ~1 R
set shape "person"
; ^- h! R) O* X' ~setxy random-xcor random-ycor
$ D( `, e* X3 E* O# \8 O/ M1 {set trade-record-one []
' n+ v" a: e) U ^( c
* Y( E7 b6 U( ~set trade-record-all n-values people [(list (? + 1) 0 0)] W: k* s5 a+ f6 W' i
$ B( X2 v! G W/ Z( f* Eset trade-record-current []$ J K6 G( Q- f9 ^/ A
set credibility-receive []
0 ]) R6 V& d' ^5 p% nset local-reputation 0.5$ Z0 l( I: n4 @
set neighbor-total 0
1 u: T+ H+ p& I0 C \! C0 Lset trade-times-total 0
& O) h# H/ d8 q& Wset trade-money-total 0
5 O. @7 n. b# K) [4 v7 h4 dset customer nobody% [4 C* s3 g/ F2 k8 r
set credibility-all n-values people [creat-credibility]! g+ \& g2 ? f
set credibility n-values people [-1]1 A' R7 M! k8 n d" d! i1 R. ]3 O1 \
get-color3 Q) o; [. L8 L8 ^' y
1 l a# o1 {2 V0 F6 z. pend
3 b% I0 l& I' H5 O+ |' Z' v$ v% @( U
" g; b( I! g2 N+ L% F! |% K( Yto-report creat-credibility8 N* }1 C8 ], T3 R5 C7 \6 P& x
report n-values people [0.5]
+ G( X% {2 M: Q$ W8 ?end/ E; S) \' L& o8 ?( F2 r
/ ]+ ]/ z9 ]. L. W$ L6 {5 Oto setup-plots
: C2 y+ J% w5 k) S( W4 n: R, E; F9 V, R9 D
set xmax 30
9 r6 E- U; x: X
/ V$ A: b3 G$ i3 ^set ymax 1.0* S1 K5 @6 c9 L' ^# U
% X; l O$ b6 o; Q6 b# }4 M
clear-all-plots) J0 ~3 a5 j9 h& f* G/ m, h
! B; q0 T$ n) a' O) z
setup-plot1
& ^* `" t! r- c( D0 \" H# ^# ^& p3 l1 C* R+ g+ e6 Z2 n6 t' F# q
setup-plot2
7 e- p' n N A. w
2 n0 b% B7 F1 E* h4 S: dsetup-plot3* S" r% d) V/ l& r! b! o
end
: a& b: c& Q# K5 i# q9 j4 r8 X" v4 P
;;run time procedures
& V4 u3 v8 }$ q* ~# @/ o0 r
. F$ m& ?/ C% j5 e3 c/ P# M; }to go
2 u8 W5 Q8 M6 D; n/ o( R7 [3 I4 O# R5 n1 t$ Z1 f1 s/ T
ask turtles [do-business]- z1 a5 [& `; S0 N# k
end7 W) P+ M; [* W7 A- C
4 |8 [% P( s& Kto do-business 7 b- [0 }0 P) `( M$ J
6 z; [+ u* b7 F2 m) R5 Y+ C7 q
7 q7 B- ]/ b$ V; r5 Crt random 360. _( H* U( X; E! \0 ^3 o
( |' _6 g- p" t& h5 }# O# X+ q+ H2 z
fd 1
4 \1 S+ p% O3 i: a0 t/ i' ~
+ M* J9 i- B7 T& h7 R% v; H6 Iifelse(other turtles-here != nobody)[ y, s) o- }. h: b, v9 G S
$ g& a2 b3 S# ^! d' o( S9 p) Uset customer one-of other turtles-here8 U, j9 I; r( P* `
- C1 \2 M( o4 J6 N* S
;; set [customer] of customer myself- F& ?/ t$ V' e* l* i e
# M7 X: O9 p% H6 O0 X, Q& {, d F
set [trade-record-one] of self item (([who] of customer) - 1)
4 x# i% ]' L( F[trade-record-all]of self/ H9 |. j( X3 {) k1 o3 Q5 p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" d4 k& e6 {5 C; N& {4 d6 P/ |1 Q/ @( q! _6 ?/ {0 I
set [trade-record-one] of customer item (([who] of self) - 1)8 Q. h) K5 [9 ~4 J3 \% b- {
[trade-record-all]of customer U# ]% m& Q: u
2 t& u1 i; _+ E8 I; P4 E) _" f
set [trade-record-one-len] of self length [trade-record-one] of self) N* N0 A2 b, x- Z
, @: L( X- n' D/ b5 p" v6 I, _set trade-record-current( list (timer) (random money-upper-limit))
9 S9 ]3 [8 S. | w. ?6 y5 F# D7 Z1 _
ask self [do-trust]# b5 z$ e+ _$ E; }: Q
;;先求i对j的信任度1 p7 K( |: X& E1 u7 B
7 ]7 ]# ^% u% S
if ([trust-ok] of self)7 q% e0 S1 x7 u
;;根据i对j的信任度来决定是否与j进行交易[
( z+ Y3 {' \( s+ lask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ U, |$ W5 Q0 T5 y( I/ r) g& W7 a; _: w
[
( Z8 B1 t- e: L( p, |* ^& e @. Y3 ~; Y5 E( w4 p: J
do-trade. Q V: A) Z9 b9 C# k1 j
1 d0 y' N( {# X1 kupdate-credibility-ijl* q* f+ P: u* i( [( q" n
$ r `8 \! E0 n) d4 J5 Q/ A. \
update-credibility-list' x$ w* Q) p: |9 ~6 O
5 d9 l( j; g8 N3 Q- U& l
. `9 A: Z- `4 d P
update-global-reputation-list2 ]; B$ m$ X6 {
9 M, f3 `; ?1 \3 v, Q& _poll-class9 E( Y7 {5 H2 @# K+ N# o# }
' n+ G' ^% _. D7 G& M/ o/ }; G9 B
get-color% s5 o) A+ n6 e( L
1 Z5 [( v$ R- t4 q5 z3 g]]9 `( f* K3 l1 S
: x! Y0 d* k' Q! S/ c;;如果所得的信任度满足条件,则进行交易" F+ F9 R2 M) U4 W0 V
) c3 g" e# l" X$ C" o! ][/ y5 P# A% _8 `/ g& |4 T! h7 I
, U4 z! {+ O! T) x0 i: z0 A. ert random 360
# o/ T% d3 r7 ]1 n+ `0 s3 l7 P1 O7 G+ Z; X; I2 l4 b# K
fd 1& H2 v e% l N# \) }
5 o9 z* ?6 e4 M/ \/ I. r4 ^3 W0 G]* z+ Z b3 W, l. I: N
0 t7 B/ J* n, ^. \end
' {2 }% T/ Z& X! R; k$ d& W
+ w; y2 j) [) Gto do-trust " a2 O1 [8 r6 t5 M0 D
set trust-ok False
9 Y- w; d8 H W. q/ k0 d: K" ~; C8 g( U' [
@# r1 i% ^2 X7 |' |( B
let max-trade-times 0
7 a3 v7 T# t5 k8 N# f, j: x- Iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
H+ Y- V/ c; p, slet max-trade-money 0
s/ S' @7 {% p9 Hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& {; }0 h( x) Q" ~) E2 C
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# f5 E1 J% J ^9 j6 T# \
( J4 {& I7 _0 Q; \" ?
! V8 {3 J: B. e1 e; J3 F4 g
get-global-proportion; k4 U5 d% m5 [/ {! V4 P( w1 _
let trust-value
7 f' [% w& d7 [8 u: {& qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)2 V* L* k- u; ~, B5 r: e3 F
if(trust-value > trade-trust-value)1 g# N8 {% c4 ~$ V- S. M
[set trust-ok true]
) T- Z# _. G( n+ ^+ V" E" U3 b9 Yend# E( Y1 d& Z- m% p e6 q4 |2 y
. B& w4 c' n k$ l: {& A1 }' K! J* ~to get-global-proportion
. q R' l1 Y8 B% `$ t; [( b/ s2 ?' e: Pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 |& I- ]5 t! `! E& r
[set global-proportion 0]
8 ?0 B. d' J) p4 D D7 r[let i 0
% L3 h2 U3 n. _9 K- Y4 d" vlet sum-money 0 o- n3 f5 q N4 f z
while[ i < people]8 t1 }3 h4 b4 d
[& F2 D% i% Z1 O, V
if( length (item i
% _: u3 f; e0 `/ L" w0 p. A8 r5 r! V5 s[trade-record-all] of customer) > 3 )9 \& G' m$ _3 Z, G) n
[
: l5 _ o, n- F w( K$ qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 l f/ D$ l( I) d$ Y]
' ]% ?0 Z' N0 U' K, \* @]) U' a1 U" K! z1 r, [$ g% P
let j 07 ?4 I+ l8 y% _! Q
let note 0
2 z5 o7 H/ j' b5 {# M0 @while[ j < people]
' \. Y9 P+ O3 i/ u: l% d) ]8 _% Y[
5 D& I& H# C& p# ?if( length (item i8 c- ?( Q$ k( J4 ?0 ~1 Q
[trade-record-all] of customer) > 3 )
( a( i, o$ a' {[
0 l) |$ Y& T# R: R \ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* L8 m4 _/ V# @/ E1 I* }) V3 o[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" K* Y& G0 E& U" X- S[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. x: W9 j4 D" P$ F7 h. i2 z: O. S
]
3 i; i5 n, d" Y, F Q' L) W]' G" _" m, Y. R" y
set global-proportion note
2 n6 ~. G& n( l* s7 w8 b* p]* V- i$ _, J( K
end
3 l! O, ]# F! R
; I1 Z" Z' Y/ g0 w0 M9 A9 K& uto do-trade$ i8 d/ d) N& r# \. h$ _
;;这个过程实际上是给双方作出评价的过程
) C }: \' G1 A# ~/ h. Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 T7 |/ R8 E% \- e% `# w: Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* w' _" I6 E5 ?& |! [) J* nset trade-record-current lput(timer) trade-record-current2 w, S; p* ]& @% X1 r/ N; P
;;评价时间
2 m+ F+ ?8 @& Q9 `0 `9 oask myself [
3 o, U/ L, x ?5 L4 c4 Z* }" f* |$ I: o+ dupdate-local-reputation
5 h, U6 ~: b4 a# B9 ~set trade-record-current lput([local-reputation] of myself) trade-record-current8 h9 j7 ~3 P5 J/ ]3 a0 |( _
]
. g, z8 U3 c; F2 x" F. Z5 Mset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" v; b1 `3 l+ K% c f8 t% }
;;将此次交易的记录加入到trade-record-one中 g, T0 N* K. j
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ H) X8 P2 {. I$ d! z2 ?. \. dlet note (item 2 trade-record-current )
4 i) l+ s7 B. b8 t/ I5 Sset trade-record-current
8 V$ v1 o: {8 D9 `( k( O(replace-item 2 trade-record-current (item 3 trade-record-current))8 M2 s5 |6 F' i) k# q/ G
set trade-record-current' p7 v! k2 k; n4 v2 I! d
(replace-item 3 trade-record-current note)
% c5 h+ u6 e3 E
8 v: {4 L" C- [4 ]* r- W0 C; E& @2 F; `: u1 D3 b7 c! d6 p
ask customer [
7 x0 |% }% l1 fupdate-local-reputation- S! U* \4 c5 A# \' m
set trade-record-current
2 A# S8 {% p. N; T8 @4 \( u0 X) M(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 B7 z* S4 N4 y# ]
]
) b' o$ q2 Z4 r/ L
2 @3 Z( ~1 z, [( r0 |; F4 p) A' s' C7 h2 G9 e
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! o8 h0 M( q: v3 u: c
& H: A0 k* f% D, M. h) S1 Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: Z) _: P- ]& W! F. I4 _;;将此次交易的记录加入到customer的trade-record-all中
& ~! y6 [% t; C; A9 T8 b% \9 Wend
^0 k% r/ C! R6 S+ V
/ S( q# x/ W+ D9 Cto update-local-reputation
: i! S8 Z# c# q+ hset [trade-record-one-len] of myself length [trade-record-one] of myself; B7 ]6 G2 K& R2 h4 z
( w; n+ o; l6 E5 C- @+ O
# M% l- ^& K" T3 i9 _
;;if [trade-record-one-len] of myself > 3
( m. n# v/ G9 i" F: bupdate-neighbor-total
1 A" o0 N) S# |. _" p;;更新邻居节点的数目,在此进行- n7 Q6 R* }# g8 y- L
let i 3
: N( {; o$ ~1 V4 E+ S- alet sum-time 0' o; d- c6 c: O d- T
while[i < [trade-record-one-len] of myself]
; B. g4 q/ i" ]3 I9 L8 f. g[2 }6 u1 | a" X/ n: a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) F8 g5 ?" Q5 R- ?6 Z' v
set i
* @+ S0 J( V: q% u$ n5 @/ f( i + 1)
0 N) y) N" w' c; r: A# j4 m9 P]8 m0 H4 `5 p" u- c. A6 X2 Q! I
let j 3
$ y( N2 \5 J, s) j. l# V% `let sum-money 0
~- U1 K# @& j# E/ ywhile[j < [trade-record-one-len] of myself]
3 Q0 e% Y* g2 W3 ?$ M# l[
9 U: Y4 _5 e. i5 ~2 \1 s; l9 ^5 @ 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)
/ q% S0 v6 k( o) r; J. V# Nset j
# _/ F: D, K" k; o( j + 1)
9 Z8 x* q* \2 K, x]0 I- m J: N; C/ L* A* H
let k 35 y+ V. c8 n0 [, o+ Q
let power 0$ R" X- u. Q7 O) ^/ r8 g
let local 0
. ^0 @$ M( G' j; I$ fwhile [k <[trade-record-one-len] of myself]5 o, `* ~/ o- D: ]8 s+ m: V6 _1 {
[
9 \* {7 ~ ^0 }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)
: q% ?2 o2 N Q" T# F! Yset k (k + 1)8 h0 s' D. A; B% K
]- o& x; s/ Y! A1 \
set [local-reputation] of myself (local), u$ h% g- P2 N6 v+ N$ r
end9 G* ]. M8 ^/ n1 ]6 c' g( g
! U( w4 i, K# R4 P. _2 \* J, ^# x1 P V" _
to update-neighbor-total
: c/ n# Y1 P3 c% n' H( p. \0 X7 _+ I9 t5 u4 v0 J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" Z% k3 x( H/ g* v
$ T/ O9 ^: ?$ u1 N0 T4 o
( g$ Q7 V5 k$ cend
) t8 {- T- i2 P9 b" ?8 G5 \0 f' o
- H, D& A0 k Ato update-credibility-ijl
! D6 |: }) d1 M N
% }) E4 @, w' ?& ?;;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 ]. W$ i" g3 k# p- D3 c# r
let l 0
5 L" t7 R1 l! d0 x/ I nwhile[ l < people ]
0 I r- f! S% `" 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! Q+ w4 k, z0 X3 [
[; t& w' v3 n; x. D, b7 ^
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)' i7 l* X! X* D! n" M5 m& F: `! K
if (trade-record-one-j-l-len > 3)* }0 Y( {3 Y/ s0 O6 m% X1 h6 a
[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
6 R; \ Q/ A G# C5 j4 U; \8 c; \$ flet i 3
' |# a o# J+ [2 _( {let sum-time 0; a2 `0 g! s! z3 r4 f7 b N9 P
while[i < trade-record-one-len]
+ X5 \1 N& }1 z[1 W, M& k8 b6 E% P) Q0 I
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) C: ~6 D7 Z/ U( q% }set i9 W7 y/ X* X- f! V! N
( i + 1)" ]7 o6 J; b9 L, U: i5 q
]
! b1 ^. N# J- t* d: H% _3 Clet credibility-i-j-l 0
: t1 S2 O4 L5 f) s) B;;i评价(j对jl的评价)3 L+ J& m2 x: Q2 g6 j! _
let j 3
/ |( d" Y$ D: slet k 40 v8 _+ B% W- y y: I* I
while[j < trade-record-one-len]0 F+ c, ^! s: g v2 {8 I
[
& P: ^- y5 ?2 ~+ w1 B: 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
! ^6 ]' Z% x0 F7 I; S) Mset 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)
, l1 P4 {9 H9 r$ o1 Iset j
" c# n% ~/ G7 a. o7 f, }( Q( t( j + 1)+ {. f( s3 I1 l- K+ }
]) k0 N. I1 Z ]% n2 O+ O! y
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 ))) ?+ d% ]5 j9 ?$ N, z, K
8 m1 {8 Q, t* y8 |* G% ~
7 m* Z! z5 y! U Q4 A
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% r$ C3 |$ m3 Z( Z, h;;及时更新i对l的评价质量的评价
& O* j, g/ H: B! F7 t+ Tset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]& h$ i& y: o- S$ G
set l (l + 1)
6 R0 F" f7 J) S' o% ]7 {]
* t% \2 x0 h9 y# T/ z' ?2 {end
. b- ?& W: v3 s7 o, i8 ~3 \: m7 k
to update-credibility-list
4 I2 w; m% \. W* |2 Rlet i 0
$ `6 G) I, ]" e, o. F; N+ m: awhile[i < people] I# e) ~$ L1 V2 s2 M' L; l
[
' \$ y n9 u$ ?. p' c' _let j 02 i7 }' I, V2 {" F1 b& R
let note 0; h, ^- A! M6 U2 `
let k 0. W" G, B7 U. w% z1 ~
;;计作出过评价的邻居节点的数目
# R# P& J8 Q+ N/ I' G" Vwhile[j < people]1 Q4 z2 e1 J/ Y0 b. ?
[/ C. ~# ^, Z! @7 _
if (item j( [credibility] of turtle (i + 1)) != -1)
. o q. `9 r% [) G;;判断是否给本turtle的评价质量做出过评价的节点
3 w8 S7 S% x" ]- ~4 W/ X7 D[set note (note + item j ([credibility]of turtle (i + 1)))
0 o0 p, ^# C1 t& ]* l) F;;*(exp (-(people - 2)))/(people - 2))]- k$ {9 z0 d% R+ q3 |! h. r
set k (k + 1)" w5 D# e# N/ r2 F) F
]
- S9 N8 o4 Z$ |set j (j + 1)8 l/ b) M" d/ U) f# y, w) I5 l7 Y5 @ j
]
1 i4 { }9 @& j- g& p: |set note (note *(exp (- (1 / k)))/ k)- }- O* k8 C9 N' m7 L
set credibility-list (replace-item i credibility-list note)
5 C; C" l# W e6 @! Xset i (i + 1)
! N0 ~( l# X- U$ }/ P9 K]
6 f1 o5 G2 q2 f! l1 H" I) oend
. x1 H M0 K8 k$ G1 G; T! e, D; c% H! W8 `% m/ _& K X1 `
to update-global-reputation-list5 k2 e( c9 Q) I& W+ `; D
let j 0
- [9 ]' B3 i3 a& w$ w4 C1 F7 dwhile[j < people]- C( l6 [, G* G$ h6 L! ~
[
6 M. H/ K6 [) Z ]0 ~let new 00 Y9 @, C/ ?. H
;;暂存新的一个全局声誉
# V0 j; g% T' E! \1 r$ g1 wlet i 0. x' @7 C9 s0 B3 H. `0 u1 g' M
let sum-money 0
' s: V) \+ @" Jlet credibility-money 0$ V% W- [6 {: B
while [i < people]
$ G' M. t6 D$ L6 j( |[
" T. d) X( m+ Yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); w& N' ?+ Z+ ?+ ?
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) O1 \! b, y5 o; g* b
set i (i + 1)
5 g! O# v+ P- T0 `]
) ~" ]! U1 c+ hlet k 0
# H F$ A2 k, R, r' K+ S! r% U: Jlet new1 0. R9 {9 |2 ?" K% z
while [k < people]
6 t* @- G8 n3 Z) c[
6 {5 e7 z$ ?1 lset 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)
: |; t n- j% mset k (k + 1)! g" K% E0 t8 c
]6 u" z- V, [5 `% w3 [. i5 n( x& `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 {( k) M2 b: t( |, Nset global-reputation-list (replace-item j global-reputation-list new)
/ J9 J; [4 l7 {: {: q9 X7 e/ ~set j (j + 1)
% }0 |- U7 d5 w( z3 } C]
" e* c4 H% y, E- D9 n: eend
( i" ]" S! U1 E4 o# j3 j' x
: Y! P- ]/ m' C; q3 g) ~: x
, N7 P$ ^: z. r; o. Q: s* e
8 G5 S) D \- u3 sto get-color) ?' h7 W/ `& W! [
8 b) e5 g* W% X( C, _
set color blue- x7 r$ r' V! D- P, X8 {
end
1 {0 _+ M/ n5 X' N* a ?8 S9 Y; [5 |/ w( Z; P2 z6 N& \
to poll-class
8 A" S$ D# H! U8 l; k$ f$ oend
; v. |& u3 B/ m9 H8 S# I& I7 r* o- @! J2 h
to setup-plot1. T$ T- x) J6 e8 x/ T4 r1 `# T
) n7 Q! R0 Q- }0 E) v( F3 P4 v
set-current-plot "Trends-of-Local-reputation": b7 _" \ d% m* s4 w8 Z/ h
0 l2 O- P/ b: A$ k9 [" V
set-plot-x-range 0 xmax
. W* S# M3 \3 H# P4 y: {6 H) }7 g' d' }, [0 y
set-plot-y-range 0.0 ymax
- G' q% D9 |; D3 i6 Jend" r) z! k9 g! z* X# B
' F6 F% S6 R) Y* O3 C: f
to setup-plot2
6 a: @' {8 E2 X/ u5 @* a
) W; b5 f7 V/ S) ?% @set-current-plot "Trends-of-global-reputation"
4 @, k' S3 v( t: n% Y6 f9 Y
* j0 O' C; f0 ~. S) Q! J5 ~1 ~. sset-plot-x-range 0 xmax4 T G \3 s" Z' a- ~
. F" _' Q( J3 {' {
set-plot-y-range 0.0 ymax; q: s' Z7 i9 U* l
end5 I8 m; N& X$ X& k7 p: @7 D# i( {5 }/ `
b$ o' J; t/ j }! k! Oto setup-plot3- U# ]6 b. P) F* y; l( P6 T
0 C" [7 ~# F) R9 H4 }; U3 [5 c7 o
set-current-plot "Trends-of-credibility"
( E9 X0 f. ]* p) u w3 E+ K2 y
* F1 V, H8 O3 Mset-plot-x-range 0 xmax
8 `5 }% }5 n4 m# s7 q2 b8 f- ]% J# ~' M. J: k! p+ ?
set-plot-y-range 0.0 ymax2 Z0 F& N7 _: x2 [& _9 p
end) M5 J4 n$ E. b- F
8 n. x3 J9 ?9 e6 D/ uto do-plots
9 r% I3 B, o: {0 U( _set-current-plot "Trends-of-Local-reputation"8 n/ _1 Z8 \& x9 d7 O
set-current-plot-pen "Honest service"- U* z/ R; L+ d" J) O
end3 @ e$ ~5 Y3 ?; l7 p
2 a! R; {' N' q0 i6 }[ 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
|