|
|

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
; E/ b. Z E" P+ Y- @globals[& |# o( z8 x# G9 S5 l8 M
xmax
! L+ {' ]( K( j0 }ymax: e7 D% m6 K" ]
global-reputation-list2 S L W8 d R' t, v
; x) x# q9 l6 N- b
;;每一个turtle的全局声誉都存在此LIST中& k1 k- C( m! D; c. w0 \
credibility-list
! }$ M* ]* s+ z1 k z. c;;每一个turtle的评价可信度
' e. f, k! X" P& a: W! x" @honest-service1 ]/ o4 ^8 ?) Z" O: U- t5 ^
unhonest-service3 b1 ]' s$ b6 U8 e7 G' `2 _
oscillation
" m5 ]4 d- @& {' F- {. N$ crand-dynamic0 T! W1 N) H" Q$ u3 [
]9 z, K6 f; o4 @1 A7 _* ]7 R$ J
& g! J1 y! T* \+ v1 D2 Zturtles-own[
5 r% j. `- J5 S+ {trade-record-all
* {- `. z8 ^; z+ z5 J5 v0 ^" N! b;;a list of lists,由trade-record-one组成
, t, c3 b1 R* Mtrade-record-one7 x7 _5 E9 o/ [5 k, i- B- S& \
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录2 L$ x+ U& w" K- X
; z. O3 b* x6 Z8 J% [- H
;;[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]]
1 u* i) Q- x7 U- t' ztrade-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]2 Z7 e8 K* w' p2 z0 P a q
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
/ [' f9 X4 u+ p* R9 v2 s+ @ Wneighbor-total) F- ]5 N$ i* B& A; u
;;记录该turtle的邻居节点的数目; m2 c9 |$ d. i. m" z! K
trade-time" p8 P( I R* N: e9 p L
;;当前发生交易的turtle的交易时间7 m1 ]" `' @2 D; p3 x
appraise-give
: o; v8 o+ t% T0 M;;当前发生交易时给出的评价
0 w3 m: q, T+ o# M8 Q) ?! Jappraise-receive
" Q8 q% i |, I- U& k! `;;当前发生交易时收到的评价: S: e/ W7 O! X# S5 H
appraise-time
2 S B! p5 S4 X. H! z5 w, v$ q& x;;当前发生交易时的评价时间 z7 x. {6 L7 ^6 R, X4 m
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 P- W. `/ P5 X; n9 m6 Ztrade-times-total
$ u7 d0 Y: J o$ n+ B1 B( |;;与当前turtle的交易总次数
6 J( H& R( X) e3 btrade-money-total
" n6 E: y" e0 _) k0 {3 h;;与当前turtle的交易总金额 k; N l) G4 _4 N1 z1 y3 r0 a
local-reputation
G* Y8 j+ b1 P# O. lglobal-reputation
# A, J& {8 |' T+ m# h3 `credibility2 x2 n( |1 F: C& V) f( J' B
;;评价可信度,每次交易后都需要更新
7 Z: f# e8 L% B7 y7 [credibility-all, [# }) h6 j. _3 a
;;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7 c+ k) z) T; R A. [/ r
6 }) Q; X% H* y, ]
;;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0.54 [7 `9 u$ X$ j* l; M6 t" a6 f5 [
credibility-one. I9 M1 b4 a+ j
;;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 |+ k0 i+ |; ?( o2 v4 Wglobal-proportion" ]/ I5 Y# E9 A+ j6 t- @
customer! q6 B6 ~# `* g3 w$ ^; z. b
customer-no, ^) K$ i; |: p9 S9 O
trust-ok. Q4 |# [; Z# Y5 E
trade-record-one-len;;trade-record-one的长度
2 c1 h c+ ]5 `5 P]
- h$ \, B1 c: M @/ D) K) Z* o0 o. k
;;setup procedure( o3 S6 O" ]$ B! Z! B
" d/ D. L* B. h; g6 Y/ P, fto setup/ f' n5 X. r7 m3 B7 F0 t
" d/ i! Z. B& P$ ?ca' {2 T, Q0 U) c2 K, N" s( z9 H
" d% q; a' G+ C. U6 w
initialize-settings% ~, q) }* V& q
1 F; ^2 L% I& Y* L$ T# hcrt people [setup-turtles] T( L% L$ z: Q$ ]; {$ `& R* P3 w
9 t2 e- V/ J6 j# a
reset-timer2 M3 N( O& n, \8 L$ o
. j; j9 N* P2 b) K. t9 V& Y3 B
poll-class
. n* s9 {5 s& [+ ]1 r N
' @3 O6 {% ^9 |2 }7 usetup-plots* x0 J5 e p) K$ [- ^( j
1 o4 `2 D! y- _
do-plots
3 D2 p6 B1 y3 b5 tend }8 p6 x: ]9 s
: K! E" l- Y& F( Q7 \# I# s4 Yto initialize-settings$ `2 o/ o: n7 p8 a6 q- r
9 e% {: x4 e. w7 d& z. z% `3 E4 {0 z
set global-reputation-list []
1 l) Z# R4 b+ R* O: S! G6 B) l* d; q1 @
set credibility-list n-values people [0.5]. f! S- D, K/ F. \* Q. B2 b
6 c2 j, N X7 i4 V) k! P* p( g% Iset honest-service 0$ A4 E. O+ @5 W9 g4 \
1 `. t( g/ @) e! p8 {
set unhonest-service 0. r- m. N7 n7 ?; x! y
5 K W# \ S, G7 |+ }7 m* h' I6 yset oscillation 09 z7 Y) ~/ P# f: b6 A, S7 [
8 E9 m' B8 D* \9 qset rand-dynamic 0
: h9 E) w* {8 o$ kend0 }1 a2 w6 ]$ ^5 m9 W7 W1 A( y
6 `8 D7 V _7 o1 l3 ] L0 {to setup-turtles ! z! s. O. t9 m4 g! o \
set shape "person". k' j' C# Z. E0 W% t
setxy random-xcor random-ycor3 L1 u+ m! R( `0 [* @) G' L, F1 _% u
set trade-record-one []
5 `8 U+ q0 V; ?, E' s
7 w; s+ `7 l2 ^5 V. _. B/ I1 cset trade-record-all n-values people [(list (? + 1) 0 0)]
( E' E1 b _% F: c' u+ Z
# Q7 H7 T) W6 f, x+ Pset trade-record-current []
) l; w t& t2 t4 S& Gset credibility-receive []
5 C! o5 q+ M, {3 E9 ~set local-reputation 0.5# O% o% t+ j8 L5 _
set neighbor-total 0
+ ~' d+ J0 P3 s3 N, w5 Pset trade-times-total 0
3 F% w$ j) }+ nset trade-money-total 03 [# e, J3 C! v0 t; E
set customer nobody3 x- U# p- K8 }& w* m. I0 `
set credibility-all n-values people [creat-credibility]! y$ e* `' p1 F" p, |
set credibility n-values people [-1]
( j* F/ X0 S0 u; y, A3 hget-color3 B1 F7 v; E1 }+ R' X& D( C
+ n: i4 r) ]4 G$ Qend
* r4 l6 P3 z' K: ` D2 d2 b
, ` g, x7 ]# X" l9 Q: C1 cto-report creat-credibility. B9 C* N% s* C. x( g( e& a
report n-values people [0.5]
- [1 h7 ]# E2 O- H2 D3 J3 \end+ \% r1 y( h% _7 R
# g& o6 w; N- F/ z9 }to setup-plots# ]1 j. q5 {5 a2 v0 b: s
& f9 n6 h. r8 @+ w) ^set xmax 30
% `, t2 c# z" @ J1 g, y3 n
5 x( v" q1 j) F0 Kset ymax 1.0+ e) B3 ]2 r; Z9 j
% B7 y/ I1 h4 V& Y Wclear-all-plots" d5 v8 ?$ h$ d: J3 p
4 t7 v6 }% b" C* A- Ysetup-plot15 r6 z0 w% [; s
, U% E, ]6 t8 J* hsetup-plot2
- c* E1 e, u3 M, H3 G/ ^3 g" ?
) @" a5 H; R8 n: n6 D/ V9 ]: tsetup-plot3
, p, M* z* X0 i' Yend+ @; x; g9 }1 t) q3 x5 Q0 C
/ M- G; e( d8 X- y) E! U;;run time procedures- x" m; b, V# j$ w# o
* Y! h! J* N! j4 ^9 l; }
to go/ U1 B1 V4 n- ]$ O2 d8 G# R/ ^
/ n; q8 M: R/ n Y8 k' mask turtles [do-business]
, F8 S+ R6 C0 x2 Nend
- D; Z& c) z+ b2 M* x& K
) ^" x- T0 h3 S# N' w5 ?to do-business . _5 y8 d2 {$ C; a2 m! H% Z( M
" \0 W. v' Z3 w6 a$ X0 W2 a
* g2 R' `( }' A& e2 ^rt random 360
/ i4 X. o* }) V3 I; q" |' a. U. f# }- e, C! N9 ~0 q+ ?
fd 1
( Z. N; ~9 ]9 G3 Y p7 ^0 P5 a- ~# I R& M r
ifelse(other turtles-here != nobody)[
! Z3 P1 V+ N) F5 F
# F) _7 u$ G4 U ]set customer one-of other turtles-here
. N; D+ G% O6 Y3 X, Z5 ]# o0 S( u4 ^0 l: Y D w' Y
;; set [customer] of customer myself
! {# K- G& c, p# r4 a7 I9 Q
: I, O) z- u) ?0 }9 [" b; oset [trade-record-one] of self item (([who] of customer) - 1)2 {0 h+ S/ H* @( T& G
[trade-record-all]of self% ]2 a& w# H0 |/ x! x" d4 J
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& |" U- S# x& l0 u+ @. _. r/ p
5 W1 A% M; L: [9 P/ l5 Xset [trade-record-one] of customer item (([who] of self) - 1)
; x- Z$ x, |1 l+ {* x, E[trade-record-all]of customer& [ y8 V/ @. m! X) Y ^/ c
) B2 I* |& @1 C9 V! Y
set [trade-record-one-len] of self length [trade-record-one] of self
. A) u5 K+ G7 C4 A$ n# }! }, u) m7 x" ]0 [" _( w3 N0 M) D
set trade-record-current( list (timer) (random money-upper-limit))3 \5 g# g- \" k6 m7 ~( m9 t
' V, F4 D6 `& Task self [do-trust]( W; R0 ]# k9 z8 s
;;先求i对j的信任度
- W6 b; k$ J2 b' g; W1 Y
: j! d7 T7 M, @# q$ S& y+ yif ([trust-ok] of self)
0 I& S. K5 l) |8 R. ]- o;;根据i对j的信任度来决定是否与j进行交易[
6 d* f: q5 _, w; |ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself S- C, C/ F. K1 D: N5 D
' b4 H) r @# t7 r- ][, S# [- V9 s9 G( I& p9 ?
$ v' p; w4 } o4 c4 S
do-trade
! ]% n/ q, R! s, L3 J" K. q3 \- A' y* I9 y/ ^; A% C
update-credibility-ijl. J, \+ I* ?# V0 M5 B0 v/ z
2 L+ t" ~1 @( f
update-credibility-list
* G0 h# m5 w2 N( G9 x0 M* O. O% q. p1 D! t6 }; ?4 [
2 ~; _4 `# h7 R9 B
update-global-reputation-list
. N# I7 {$ m4 t& K/ K" z0 v
5 z4 x/ a/ f* P' X! A* ppoll-class6 q0 W6 H& \: W0 s4 w# e& k* ]
{6 [3 Z/ m4 i5 x: E1 i
get-color3 f& \) W6 u& {+ |8 H
, S6 R. ]+ @6 A]]
+ q3 ~* `7 F: t# Y* e
" [+ ~' Z, u) ]4 k: ~" U;;如果所得的信任度满足条件,则进行交易, A: _7 U \1 b* n) b
: [) k5 D t8 Z% \% M% T) C[6 I5 C2 Y0 Q0 c& Q; T
1 `. Z d9 Q' d3 F) j: }+ E; frt random 360* @* F" {; H, U: C
0 n0 x2 N; F3 K$ f1 u* B4 a% efd 1
& J2 a, b- J8 P# u* `* p! }* ^1 B9 C4 N
]4 \) r) s% E. o/ D
& v& U5 f3 a6 V) _) B: ^1 cend
" i# N) q6 z5 a! X+ ~" L" v9 ^
3 N7 O6 z% U, w! u( A2 `to do-trust 9 K6 Q: |: P# Z6 [. v6 r6 Z
set trust-ok False Y1 @! n7 ?/ L
+ k$ Q! y- x$ S2 a. p: r0 E( z, T7 C. x( _/ }+ k/ s$ F+ v) K- v
let max-trade-times 0
: L5 U5 {( W2 |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 L0 p+ X/ L3 C9 U& Q, flet max-trade-money 07 P5 ~8 ]: {1 |6 C7 Q6 A1 ]0 V. e# F
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- g+ R$ ~: Y8 [" \# 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))
1 x1 p( e9 y# O, B6 e1 T6 C) |# c6 b4 P2 S1 H! M
: G0 X: e! u: _, i# c+ d5 C
get-global-proportion8 D2 c o+ k8 @2 M: j9 ?: M9 t
let trust-value
1 X& m1 Y& X2 ^( |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)
6 f( l* U! W; d. U }/ l" Iif(trust-value > trade-trust-value)
1 g" a+ C7 F0 U9 J3 k[set trust-ok true]7 |) u0 d1 C3 d( N* Z6 C# |: |
end, v: a1 d7 W, U+ D- s# H
% s; ?( z3 ?$ z9 @5 c1 t1 a$ N+ G
to get-global-proportion; m1 g% J4 B1 \3 {; Y# b) T
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' T! n; M3 ]. c$ R9 t
[set global-proportion 0]" g! C, n% N9 s" Y2 y. d6 ~
[let i 0
5 o4 A' [ `8 Z3 d; v* [% O+ [, olet sum-money 0. R9 q2 W" Y& Q# B
while[ i < people]* d8 t. I1 J2 W* ]
[$ W* w! S" C- X7 G9 r- e/ b
if( length (item i& ^+ E u! ^* `
[trade-record-all] of customer) > 3 )$ @0 ]$ F4 L6 C) D& n
[
8 D3 Q% e8 i# k3 Uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 ?$ J" `( ?2 w L9 f5 K+ V]
z& O+ ]! S( W7 C! Q/ c! ^* I7 O]
4 t/ d7 C0 x7 D% t; n% O/ ulet j 0+ d4 b4 t9 B. e1 [7 v% p9 n3 y
let note 09 G* O& H# |; E* A, F
while[ j < people]+ M- ~! K/ |# b
[7 k. ~) N& `( h' v( B+ {
if( length (item i6 f3 e N' |" N! [3 V
[trade-record-all] of customer) > 3 )
) x) A* A: ~% H7 K( U[+ A! R/ y" [! N" U
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& S4 E' D2 a3 ?/ A) E" f
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% B; o$ @, Q6 u' V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& V3 u4 L, c+ \8 ]
]
2 e4 S1 Z& r8 H]# U/ j$ H. Y2 c. j6 q( }
set global-proportion note* u: l- |7 T6 N$ S
]$ O" n# o' O- Z/ i0 g9 R
end
3 ?& P& l" d7 [' z/ f6 B q; n: H# Z H) S8 `
to do-trade7 I4 `# k$ e) J9 |" q& @8 X
;;这个过程实际上是给双方作出评价的过程
7 Z. q4 K# z2 C1 @. Q/ J1 w2 {8 D; kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" b0 f1 k* o% c+ X! T/ K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ l; K2 e; c" \' o" V3 dset trade-record-current lput(timer) trade-record-current
) ?) a4 i) V! {. Y/ F+ c;;评价时间
C( v/ `' V+ h7 L5 z$ Kask myself [
% ]5 l! S! X- t5 v$ I( U+ i, \! N9 Hupdate-local-reputation" _1 ?- p- o8 V4 ^0 _1 Q8 p
set trade-record-current lput([local-reputation] of myself) trade-record-current
3 D- K0 Z- K: g' {]. r. [: T6 O: \. I; C$ H' P
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 d+ y* K, x8 x2 c" u* D;;将此次交易的记录加入到trade-record-one中% q! y) i- { r8 ]! @* D8 L
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 a3 [+ ?( e" U/ i, {7 W
let note (item 2 trade-record-current )
' w9 i0 V" n/ m: D, t7 b$ cset trade-record-current
" \: X3 ]1 }1 z! y( \7 L# w6 k(replace-item 2 trade-record-current (item 3 trade-record-current))$ X& H* `; B1 V: `2 V7 _2 V4 H
set trade-record-current
. w; G6 ~1 ~5 V+ ^% i. q(replace-item 3 trade-record-current note)/ C: q( E/ q* O2 @- }
. e* `: f! x* v+ ?- Q+ X
& E% o5 J) E7 U: E' Y) Gask customer [; E* j; g8 Q2 }* B' R1 I+ }
update-local-reputation
- F8 `1 r# @4 O1 T. K1 @* rset trade-record-current
$ f+ w( [4 [% F3 N8 r(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( r0 D; D( B! o F& u$ M
]0 l2 ]/ e1 B$ _& y$ ^0 T8 S* K
- y9 c+ \0 j9 `/ m8 ~, l- \7 ~( m* E; \% \# M
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 y1 }% j$ A! ^9 V! V" x9 a
1 h! X1 M% {, W, ]) Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* b. N+ @$ W* u, f;;将此次交易的记录加入到customer的trade-record-all中
3 V- j+ F5 j/ e/ |( U. Kend
$ H8 \* A6 y9 u2 j) K6 o9 a* {' l1 t g3 z! }' P
to update-local-reputation5 R4 I/ w# `9 k: Q! \2 z
set [trade-record-one-len] of myself length [trade-record-one] of myself
* W! I5 j' X }+ K+ h! _! v! x* [0 n& D4 ^
6 O3 x& _1 h& }( J% _
;;if [trade-record-one-len] of myself > 3 , E) r9 d6 X( s8 `5 P
update-neighbor-total
" F1 i! H- j9 R) m J) w1 ~6 f; J;;更新邻居节点的数目,在此进行
, }8 V7 H* b* Q5 Blet i 3
, _3 M' J# }* g( o! Hlet sum-time 0
6 o8 w% R4 z7 Y X$ A+ fwhile[i < [trade-record-one-len] of myself]
2 N. K3 L N# f3 Y[& [/ a: x) x4 o! T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; Y) c$ } r* `% b2 R% l Z7 @set i
3 f$ q$ S) x1 h( i + 1)
* H, [- B1 \" q4 n1 a5 ]]
6 s: M- ]+ K! C! c/ `/ Plet j 36 C* C4 v S+ k
let sum-money 00 j8 i1 ]* S0 k4 Q
while[j < [trade-record-one-len] of myself]
0 L% m' f. D' {- s& F) ~[
6 Q/ u4 `" g5 o0 N- xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
4 p3 E8 s' l. R# E+ Q3 R8 l' z* bset j3 f9 ?. H) q- C/ ~, C$ m, D
( j + 1)
. V, h/ N% a' _7 n6 f]! Q2 L2 o' I0 v6 F, x5 D
let k 3
# K6 O) d" a/ N7 R5 K5 \* [# Plet power 0
& ?) p9 o+ H' K( V8 o2 Mlet local 0( y3 }2 N% W5 b9 n" s$ s. v7 B
while [k <[trade-record-one-len] of myself]
7 G2 u. J/ l7 K9 D[1 V- w$ O! I: @3 ^
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) ; h- o3 H. E& {& E
set k (k + 1)
& a$ }4 \0 y8 W4 E- Q3 O]
; p) P! G" @3 lset [local-reputation] of myself (local)5 g2 `9 A4 q& P0 D, t
end2 Z2 |+ `: W5 G5 J! \
}+ ~; N( Y1 N7 ?2 [
to update-neighbor-total9 k. G2 ~0 X% F0 G% s) k
; \+ {: _& K& R1 x/ r0 Y& y. Mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
7 c- h6 y7 O4 M* h; F! @( K5 A2 A" Z, U+ X2 D; a0 E) A8 N% a$ C8 k5 N
$ f! A4 n- A, r2 t0 ^' S; E4 h+ Aend) l" b/ C& X0 a4 i1 W
( F5 O9 L A4 ito update-credibility-ijl $ X8 e# h: |1 n" z
* T2 h+ V! i; t% w$ Q
;;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。- @9 F! Y, n8 U" s4 x1 o
let l 0
) [/ J1 c4 `- F! ?/ }: uwhile[ l < people ]
1 J8 }0 i1 q! a; c4 _ m# T;;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! |3 P# r* V9 z8 a
[! W5 K, u; m: Y: ]; p- I+ g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% J$ h8 g+ o$ k8 x- cif (trade-record-one-j-l-len > 3)& z# B+ P! n w( c0 d8 t2 j, n% \
[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-one6 @& D, C5 V/ J$ e
let i 3" _8 L8 o. H7 U" X. U g
let sum-time 0
: w8 ^1 |7 m8 q5 n5 g7 y' C* owhile[i < trade-record-one-len]. C0 C0 a) V- Q9 s. G9 A( J
[+ B+ f- [+ W+ I- e$ n
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' I1 u* F+ T' l2 |set i
* F5 P6 N* {0 o6 e! [$ L) W( i + 1)
, K3 k7 c! d; d$ p]+ F4 k" K h: i( s# V+ [, f
let credibility-i-j-l 0
$ G: j0 \5 B4 O r# {;;i评价(j对jl的评价)
& e( @7 g# }) P5 d, Elet j 3' V' ^3 o- @6 l" d1 R
let k 4
r; ^+ K! v3 z6 k* |2 f' Cwhile[j < trade-record-one-len]
1 B. V: e& \, P9 G( c& t[. \7 V/ t+ \3 z0 t0 j
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* G! U7 ~4 C( @% ?6 \" r
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)
, z6 k5 @/ p! p) b# R, gset j
! z' U3 N3 Y4 z: h( j + 1)
. E0 A7 d4 q2 {0 }1 L8 d. {]
- T" M0 g6 W+ J( p( a* V' Fset [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 ))
. E3 n, ]3 j5 N3 a' G
6 ^. I3 {/ G+ K
) @8 { U1 e/ S+ @5 b" W2 Jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): f* q& p2 o8 U1 z7 |
;;及时更新i对l的评价质量的评价
* s5 |7 m; I9 @4 R0 _( Oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# I& N; {7 i3 p. [6 R5 m# yset l (l + 1)
- Y" ^+ X: C* x5 K. r]
- u7 W7 W% y3 k$ F rend
4 z: {8 t+ @% g y7 R7 u/ U. W5 q% C" F/ b
to update-credibility-list q: Q* S3 \. y! `- h# ] a" q! B: c
let i 03 \4 i5 X. v8 x' i3 s, ^: F
while[i < people]. E, o5 f- [2 }2 @
[! l* q0 U c- y7 E8 I% x1 \
let j 00 x6 Y! w# g. Q; L
let note 0
+ F" V, T2 k/ {* D- [ alet k 03 q6 @ X8 i1 E# P! f8 E& J3 W) P
;;计作出过评价的邻居节点的数目 w. O, H6 `& g! C
while[j < people]
+ ~8 Z1 ]8 n6 C* B4 A0 f# T9 Z6 y[
/ Q( }- d# ^" tif (item j( [credibility] of turtle (i + 1)) != -1), v- C1 T, I8 P5 P U1 |8 G. w
;;判断是否给本turtle的评价质量做出过评价的节点
! m) ~% D- Y3 |) J; A0 A[set note (note + item j ([credibility]of turtle (i + 1)))% z7 q& h7 k/ e/ L* D; a, w6 Z! l, D
;;*(exp (-(people - 2)))/(people - 2))]4 R+ A% U) J3 R8 Y
set k (k + 1)' j2 O8 n9 _ L
]
6 I$ T' K3 j* Hset j (j + 1)
* ~3 k5 _1 j! e! X N( M3 o0 H]
% y; W/ F ]" h& T+ I* J& P1 sset note (note *(exp (- (1 / k)))/ k)% p: h& c4 c/ o5 \* _
set credibility-list (replace-item i credibility-list note)
% Z8 O3 V5 O$ Y! p$ Dset i (i + 1)
, X) U3 `5 K& N$ d; S& G# \$ e]
3 W( K2 A* }0 M- I7 N5 Wend P0 h/ z& {3 P& Z' B- J
I+ p8 J% \3 @% Sto update-global-reputation-list
2 {# n: s+ [3 c: g$ K% l2 T4 ^let j 0
' g* `' ?0 f! u* k$ C/ n$ pwhile[j < people]7 T' W8 ]! r) t* Z! E
[
1 B$ y& q+ h4 h# @let new 0( q9 ]% q( I$ ]/ c4 `7 ]2 d+ c% J" P
;;暂存新的一个全局声誉- F; S9 G6 `8 N
let i 0; [# L, N v5 |( A# n; t
let sum-money 0* H. G4 ^% N. O( a' N- X6 V1 L8 z
let credibility-money 0
' t0 F% G# Y2 s1 E" M9 r* ^& zwhile [i < people]) b5 O: G' O: j4 k* w
[
: M' b& e2 v/ z& J: W- e% @set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) d& w' d7 V/ @6 Y# ?7 {; K6 X
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ V. g, X$ F( q$ j6 o
set i (i + 1)
6 G4 A# m$ U) n]. o3 N3 @& M" [# I7 D
let k 0& v6 y8 `1 X' z0 @4 s q5 K6 U
let new1 02 c X" ~% r% S+ V; _4 P" C
while [k < people]
0 r" R$ d* F, |7 [[
4 Q8 T9 P; o2 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)
, f4 d* f T' F' _; ~% d6 |9 B0 bset k (k + 1)
1 \& W9 ^1 n/ v; r$ v( q]
" ^0 G# c0 b2 x4 q9 u3 \set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - a X1 m0 S- l5 S
set global-reputation-list (replace-item j global-reputation-list new)7 F3 @% G5 ~$ O1 ~
set j (j + 1)
& p8 m% y3 x: L9 c# O# D k9 u7 e]. N; H6 v/ J" q8 G
end% q& ?4 w) v7 {4 I Q' Z8 y
) A' Z2 y/ |1 H' m: O" [+ I+ }; J
, j- }$ i+ \$ ^9 Y* ]
$ S. b" Y" Z3 M( { ]. S' y$ Y8 \
to get-color3 m( X, g8 A0 a+ K9 p
' p$ N! x, P: R* G1 v( S% P% Z
set color blue& w5 |1 `' A- p
end
' B: D2 x X% G. |2 s
0 t+ H, s4 h* S0 ]to poll-class
, n* s" D, o* r' }0 u: S) \end- |. i+ |' g0 a0 V. m* F
: U& U2 h/ V! w- l8 |. z7 B
to setup-plot1
. f; ]) B% u% y# t) }6 h
4 @2 B/ d" y5 I% ~set-current-plot "Trends-of-Local-reputation"
7 }& s! `% o' d2 z; r b' {6 e- h: u7 Q; v' c' o" U7 s4 N7 x
set-plot-x-range 0 xmax
0 l$ r! @6 I M3 r: l% W8 `! A$ f+ K
set-plot-y-range 0.0 ymax5 j8 A9 i/ W$ |/ E# n6 K
end
. B _1 N4 Y% J0 F6 W" B- o L4 k- {( Q- } N4 V: v8 P3 }2 S
to setup-plot2+ h! l" t. L8 V. F9 e- p
) {1 E2 n# k/ [set-current-plot "Trends-of-global-reputation": o# w+ ~& E" {4 Y4 |
+ o: {8 o) I- {/ \: N" Qset-plot-x-range 0 xmax
n1 C; j5 M* O+ t. e5 ~# m! n' W' ?6 @$ ?6 V
set-plot-y-range 0.0 ymax, Y) m& K1 R* ~2 }8 f x
end
& o* E7 Y. T- m8 K" n* ^1 @/ |- }" q; s' L% U
to setup-plot3
g: M" T& i' Z1 ? N# t3 Z9 G( ]# ?- Q. C5 O) N: M
set-current-plot "Trends-of-credibility"
, `1 ~* x+ @2 Q' A1 N3 j* Z4 E& P; D4 Q' [( v' `7 p, G
set-plot-x-range 0 xmax+ Y* s" t/ Y {) ~' N' e9 j
5 N; T1 k) I, z& y5 o7 ]. d
set-plot-y-range 0.0 ymax5 N$ Q4 `( U5 ~4 P7 p# S! d; u$ P8 {
end
" n% S. _0 ~2 x& v( Z# a
% c' ^/ e2 ^6 b. nto do-plots
' i5 p8 N2 @4 ]: a. _set-current-plot "Trends-of-Local-reputation"5 Y, U, L' V: [& Z8 D
set-current-plot-pen "Honest service"
: O m) e5 Z* K1 Z1 |7 J* Cend
% u: q' g. }! [" T1 G0 ]# v+ R0 f& x. I
[ 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
|