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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( n* I+ R% J1 d- |' w
globals[6 ` i( }. q- x; }
xmax
( d8 r& W4 V' d& i+ Aymax
& ]* B! o2 x3 f8 h' M, Sglobal-reputation-list# H" D0 b/ X) J
3 F" b9 |; m! G( k" l; @& p Z
;;每一个turtle的全局声誉都存在此LIST中$ \% n# g3 E5 j) d" d
credibility-list
7 ]4 b0 Z6 x9 t7 [;;每一个turtle的评价可信度; L9 u6 n8 z j/ l/ }- j
honest-service. }$ [* l4 r- m% x+ w! D
unhonest-service
2 Y5 y. L/ Y- O, _; W' n" Qoscillation
Z8 L: J! a: C5 a! i$ B9 I8 ?rand-dynamic
: H# U9 Y$ ]6 O8 \]
5 d2 }& r U( k. N- E( f' N3 }
" [( C; R7 n: U1 Tturtles-own[
# _$ L: I# s G( \2 a7 U2 ]: Qtrade-record-all5 T" G& k6 {. W( B+ N
;;a list of lists,由trade-record-one组成
1 C% E2 h1 D2 s$ R# [trade-record-one
! `' S$ V( S- X! \6 q$ ^" m& y6 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
# G6 g' O4 l# I. N7 c3 M
* [! p' Y2 g1 D6 _5 w; r( ?;;[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]]
" r, @( U' _: m- f' D* s5 X7 ^) x' }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]
0 s" j- d8 }2 ]/ G9 R4 Acredibility-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
" H! T0 \3 O" y' Nneighbor-total. d- N1 ]/ p0 ]% z$ s5 _7 ?+ P9 F
;;记录该turtle的邻居节点的数目0 z3 f6 T. Q5 t' G m! S$ x. q0 h
trade-time# Y$ i' `' C$ S9 d# Q2 ]
;;当前发生交易的turtle的交易时间
7 k/ |4 q7 y5 e! N& E2 A; \( Eappraise-give6 I7 }, y. o. [& l
;;当前发生交易时给出的评价) f5 q( z% I/ O
appraise-receive
' Q9 i6 n! X6 j9 v;;当前发生交易时收到的评价0 F+ A3 L9 Y/ i9 M( d
appraise-time$ D* ~% B z5 w7 |- v6 K" j/ x
;;当前发生交易时的评价时间# Z" g* Y5 K" ^. `4 _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: `* d& H3 K' y9 O. @
trade-times-total9 g2 x" l0 W( x- S c9 h" n
;;与当前turtle的交易总次数
5 p$ ^4 E8 D% j$ Ttrade-money-total
0 ~$ q6 ?% {4 R# g7 a;;与当前turtle的交易总金额
5 @9 p5 @: |( I% Q( m8 N+ xlocal-reputation5 X; p% } y- U1 u" l
global-reputation
( G% i- _/ p$ `, F; O8 Hcredibility& U( Q! g! ~" K5 q }+ e! |
;;评价可信度,每次交易后都需要更新! k9 Z+ V8 X! _9 g
credibility-all2 r6 K$ D4 s( m) r
;;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
! l7 J' d; I) J) B* a) `" L' O( {6 q1 F
;;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
& {& k0 {; k: u) s- Zcredibility-one
, ?* D7 j: `' U+ E; 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
- y7 W8 |! ]- d9 J1 pglobal-proportion
. r- c% s* }& C) ]( Qcustomer
5 ^3 p2 w9 q: L2 q5 ~customer-no
) a# P5 Z' F2 J* g* K$ `trust-ok( h9 |2 L+ `, v& Z- w4 t6 B
trade-record-one-len;;trade-record-one的长度$ z# E5 _$ K1 j7 ]' t" I5 |) n
]
, n; D, H6 H, d# r8 f; }7 j! O+ C# X2 l1 L* D6 x
;;setup procedure/ B' n3 c. G R1 `% Y8 Y
# k4 v( S: U' o* w# V4 ^( wto setup$ n0 F3 e! L9 @# u, a9 E
% z3 M' e% D% n" u) a* B
ca
( ]* T' q9 W D! O+ Y, h* z! [. @- H; s! x9 K- d0 I
initialize-settings; f- i! Y" q6 F6 [: b
4 d) Z5 c; o. F1 a
crt people [setup-turtles]
% z) o+ ~3 B: t5 \
7 V4 K) s: S/ ?9 H" [2 @- ~reset-timer
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poll-class
4 Q" z8 m+ K* d( R
/ ?- f- p# w9 q" w' rsetup-plots
' Y4 `; |3 ~1 N1 P# t1 t! s
" h( U9 U* H! K( ?- K* |7 Ido-plots
8 ]7 R' `0 P/ V3 l/ q6 |end( Q4 {! o% d& X/ \8 U" S4 {' M
+ x7 _+ a4 v6 D
to initialize-settings
+ ~3 `3 h/ S+ W, M; N2 ]
" Z- I M3 G) K! G, oset global-reputation-list []+ \% Y* G0 P1 ~# n9 |
( t% I4 o5 f- n- w. E" C
set credibility-list n-values people [0.5]- |- W4 V$ |: Q3 b- N; O
5 }- k" K9 O& A& I+ ?
set honest-service 0& F& Y3 |% O$ ~$ M
9 y% N# u: d, _6 \, Yset unhonest-service 0* c1 P" N& z5 W4 m( N9 C
" I% Z( |' u. M- }4 m5 k
set oscillation 02 m2 w( ?8 F; H! b w7 E
8 j0 s5 f" ^ |" Rset rand-dynamic 0
8 b" _5 i$ j" [2 v* Q' D4 pend
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to setup-turtles + A* L8 o( w# O8 m
set shape "person"
4 D, G [* U$ E2 C0 usetxy random-xcor random-ycor d+ K6 H0 l0 N2 e4 k8 h9 g" ?
set trade-record-one []- ~) _; X; `% x5 M$ J2 G
) h- Z; X) b/ r/ F' l2 V' i( Hset trade-record-all n-values people [(list (? + 1) 0 0)] 5 g" T8 F$ P4 E3 \2 T+ X: j" q5 b$ b. b
! Z- E7 C4 @. _6 B3 n4 s1 x$ {$ b
set trade-record-current []' ?" N& E* z8 A( F
set credibility-receive []" r- _% R" u, A* t" ^- _
set local-reputation 0.5* \8 A4 I2 P& d$ \1 _" Z
set neighbor-total 08 z8 Y+ d; v% e5 y! s& U% _/ Q* r+ i
set trade-times-total 0. |- t! {0 B# M( i, [6 I8 D5 L2 b
set trade-money-total 0$ b6 V; M: }! J9 w2 m" d- v' x
set customer nobody( D+ _' b! i2 r1 C$ W
set credibility-all n-values people [creat-credibility]" i# d, L. s2 f8 }3 j- X' }
set credibility n-values people [-1]1 c6 S4 l7 Q7 ?6 A. M/ O0 Y
get-color
6 ?. _* X$ R+ U. H
0 N0 @0 c! c, p% m& Mend
& W6 j+ B& j% |/ X* ~7 `* I: k' E* K8 C! }+ R$ m! \
to-report creat-credibility
, A) F. Q# I0 h9 o! Sreport n-values people [0.5]! [6 s' `* C7 A: M6 d
end5 X D* |7 a, Z' F3 v2 M
7 f. \/ _# u# H" P0 O5 {
to setup-plots
& M$ C! T" m: r
+ N' @* C& @7 s W* b% rset xmax 30# T e" ]1 C2 j* M8 O Z. g
6 a, _) V7 w, \6 u) J. `" I
set ymax 1.0( Y/ X2 r9 r( Q9 f: Q. V
* f+ g1 h/ ]! p2 Z: s. Sclear-all-plots# ]9 V8 a, x" A! B$ E
" o: n1 s. d" O$ ?: F' E4 b# C
setup-plot1
1 y3 `+ d# A$ C/ ]- O, e) D5 n8 Q% }- E) D5 s
setup-plot2: `, @: `6 y3 N- d
5 P6 Q |$ {% N' i/ Y4 usetup-plot35 }. `+ W+ T W
end; v% d- l0 L' w) k2 W9 P
: H; ?5 `) E' G3 G;;run time procedures: m* l8 ~3 f3 T% l& {
; z' O6 }/ d4 v. N% K# Q( z2 \to go
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ask turtles [do-business]
! ?4 r# N- H: L+ k7 i0 ]; X; R9 gend
7 W8 d; l( M0 Y+ q
' b, ]1 C4 r2 fto do-business # w7 {1 {* J. q `4 x' l
I& d) n$ B+ P, J
; i0 }* w7 c! c, R# Z: prt random 360# L! c& ]0 d3 O5 N4 v5 {
$ Q" t0 ?2 w0 ]# _ }" K
fd 1
% k# l. b5 @3 e7 B2 p; H# N! U+ q/ c9 F$ t4 _
ifelse(other turtles-here != nobody)[/ G/ [; N/ w9 Y( b. |! f2 O
+ r) `+ v4 v* `# m$ J8 |set customer one-of other turtles-here. j* q' {, d' w# Y- ^. z
9 z8 ^ z! n! [& X;; set [customer] of customer myself; `/ D/ s! t7 P1 S) i
# W8 R7 h) R" q7 x i
set [trade-record-one] of self item (([who] of customer) - 1)
8 `; y# d3 `" e& L) H[trade-record-all]of self
2 N: h9 O% Y7 L- O0 H$ V+ P4 v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# m0 @' T9 c {$ M; Q$ N
" I9 [/ W9 A5 g' k9 ~& w/ v. G+ y: M
set [trade-record-one] of customer item (([who] of self) - 1)+ E/ P" w, N" p% c6 K. i
[trade-record-all]of customer2 k4 i }3 @* c6 |3 Q; \2 Q
. w; J( V1 S+ {# S: K7 m
set [trade-record-one-len] of self length [trade-record-one] of self9 L1 w: d' `% N8 F9 G
( n2 \7 _" M5 w. c! T1 C9 H0 h! |0 ~
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]; N |% o. O: s @* E
;;先求i对j的信任度& W) o* D; ]9 |8 F4 _! f! Y
& l4 X0 ?' B. c! [
if ([trust-ok] of self); D+ I# \0 U: j0 Z, `" F
;;根据i对j的信任度来决定是否与j进行交易[
7 G) e) m7 B) M3 u7 N' h sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, z, F! w: ^0 c
% u. ]3 a5 }: _. l6 s[7 A$ B4 R* @. z+ d( F
n9 }, U6 v: A& ]/ j& edo-trade/ |# Z5 [1 H9 {4 G0 U6 } R' Y A
, S" [8 |4 ~ ~& u7 E$ L; Lupdate-credibility-ijl3 E) y, B3 o3 D" p) S
5 K3 ?1 W5 V/ I. {5 Q# o' c
update-credibility-list
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[( T: ~6 Q* W1 Fupdate-global-reputation-list
4 O* X+ v) a% O7 L: b) u* c! o# \
( h7 Y* L- g7 R- P' ?& } p* Mpoll-class
+ R0 |* e- Z4 u7 g7 X* f! x( ^ \# q
get-color/ i( |7 Q7 m7 \- D
; V, _1 C# A$ P8 f
]]4 ^% |' ]9 h) w+ @
, }- M' O* N9 m$ ~7 [7 }/ u6 N
;;如果所得的信任度满足条件,则进行交易
) I& l- c0 Q8 U S) C( i6 F5 D$ F9 m
, V5 l4 V+ I- y$ g7 j: ^% v[
1 R- S9 P. m5 X1 d2 }) t+ T' P4 u* e& z8 L) \2 ~# ~) y' u
rt random 360
$ B+ y# o3 G- k5 p9 p* L' Q' M2 ~0 x4 J: L5 H0 J
fd 1) }$ b) M; q# H& w7 E
9 o4 M2 H1 U; g7 g: ?3 `]* k9 A2 l, ^6 R" s6 ?
1 v/ }; f+ v; a8 m9 K. k
end9 d/ ~8 \- a& F% N! H6 B
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to do-trust
" F6 G7 ~ W( Y# Q! fset trust-ok False5 x0 E& k4 e9 C- i. d' E4 \) `& G% a; i
3 s" W6 q3 p" T% l( q5 ^
! f/ @& M6 @, ^1 E7 f+ vlet max-trade-times 0! _3 N) i- ^; q: c' x/ b! o' P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ E! |0 d4 R2 v4 Z0 p9 d6 ?let max-trade-money 0
' K% w# V4 m* N4 [% s% q9 J9 Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" g$ o0 _( K2 S' k4 X# k. H
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 d* U1 E8 K) }% ^4 }9 @# V+ P1 }) O* \6 ~1 N: [" D8 B
: X. y6 u. A7 j4 }1 P; w4 |get-global-proportion* N, a* ]% t! K2 n1 \' s! Z4 S/ @% L
let trust-value
) B1 y' a8 y7 J9 U5 }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)
$ E# u0 O4 j% r; H& M; I1 oif(trust-value > trade-trust-value); S( f, w5 I9 [5 a& L
[set trust-ok true]
% r# r; J( O% l6 Gend4 p. L6 `- T+ P( n
' H+ h& v' e' h9 ?; t: d
to get-global-proportion6 _% {0 m. ^" b7 V( {7 Z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& s3 A1 p A- I8 e n[set global-proportion 0]
" L& q/ `4 W& C/ j[let i 0
4 o6 V0 j; M, L4 O" ~let sum-money 0
; h8 w f6 j7 c. r* P8 s$ @while[ i < people]+ C; Q# `$ |0 b: L2 `/ \' ?
[3 B J7 I5 e* `" y5 L! V& M
if( length (item i% m& I- g1 |+ C g! O* J0 F
[trade-record-all] of customer) > 3 )
K- b% h ~6 T* l; x+ N! Z+ m+ x[0 e8 Q% P- R. m% L. |
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# z8 p a h0 U; }" k& p
], i" X* A* G/ V7 W
]
3 ?1 V5 w d. H# c9 c/ Slet j 0" z+ J3 y2 e$ | N% N. N* o
let note 0% r! \! ~6 b) f/ x* m
while[ j < people]0 j) a+ ^5 [3 f' C
[
0 m# } J* @! b- }9 c) a8 v0 vif( length (item i
9 E4 U. D. @$ M6 o( L7 |[trade-record-all] of customer) > 3 ); G& |9 T9 c2 w8 x. Z6 f9 ?4 T
[& d6 N6 j/ R6 _/ m; u3 y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( l; i* ~' u/ F; B[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! L: E1 w. \2 ?; i1 {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 I' R1 g4 ~/ u]
/ @! {( _, ~& {( u* t; u7 d% `]
U: [8 L, w9 w1 [0 m- Zset global-proportion note
: [5 A7 E8 H" _( [1 m- B; K- O) Y6 W7 a] X6 m4 k$ x/ A* s% k
end8 d4 y4 I- y) }1 K; @
+ d: I V7 @. r" nto do-trade3 h4 d3 L4 q5 V
;;这个过程实际上是给双方作出评价的过程
& [3 {, g" {% C3 y% ]6 M6 [; kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# {4 F$ S# E) W6 W8 J& j8 N+ nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
! k" A& j0 w' C, \8 K" Tset trade-record-current lput(timer) trade-record-current
) d5 b; U0 l" J9 k: r* h& A;;评价时间
0 f, y- _" U4 Dask myself [
5 ~. J" [2 W3 W+ @0 t! D/ |update-local-reputation3 m- l; ?/ ~' z6 ]: `7 q
set trade-record-current lput([local-reputation] of myself) trade-record-current
. _3 Y- q& _$ `5 P8 R; s]
" F+ t9 O9 q4 b1 Xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself ~" E0 j3 y/ L2 w3 j1 q( F4 {
;;将此次交易的记录加入到trade-record-one中 Y, `. t6 A0 B( K/ U+ K1 o
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' v3 G' ], q+ |3 F% h' alet note (item 2 trade-record-current )
; ]. \! b3 I) I2 zset trade-record-current. f. s) j% Q9 {' s* c& b
(replace-item 2 trade-record-current (item 3 trade-record-current))' ?+ Z# a- K. Z8 I z( D$ W) C/ J3 p
set trade-record-current
2 j u7 z9 J1 b- U" O7 K(replace-item 3 trade-record-current note)
* _. }5 y0 e2 Z/ L5 F* C7 s5 I" J# W) E$ L1 u
% _+ a) ?, I0 @8 j* X1 V$ O
ask customer [
5 ^6 k2 l, D* Z$ h# c7 ]# u ^update-local-reputation2 _) t3 F3 d. W
set trade-record-current7 | u% s. b4 j9 s$ k- r1 X
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
) p$ n+ q' N& s ~( D* R# j]/ r" @* ]' b [
`1 A, U( k8 `% G n
% Y' X1 Q7 A; Y) k6 T1 S2 e
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 E! }; D/ {" i2 u+ ^' P, f- i
+ Y- }* \7 R$ A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ s, a" t, q) z
;;将此次交易的记录加入到customer的trade-record-all中
5 Q$ }. \/ P, H7 [& t% D2 W8 Mend7 W; n) O" _5 o( {# b
$ Z. h- T, H4 K5 ^: b5 f% ^to update-local-reputation |' p( ], p0 w; F8 }2 H8 N: ]
set [trade-record-one-len] of myself length [trade-record-one] of myself A' G8 z. g, ~! r; ?
+ ~5 P' n8 K Q, p1 N3 I5 M' f$ P+ [$ |+ n h$ ~/ T8 ^
;;if [trade-record-one-len] of myself > 3 v! X' Y: S5 I$ G& [2 i! E
update-neighbor-total# ]8 a1 t7 m! _3 I+ Z9 m' N
;;更新邻居节点的数目,在此进行! N, _4 ^' L% o/ t' z# C
let i 35 k' C' q% U5 @, {# m
let sum-time 0
% T% n" D, K5 Q" r" z# dwhile[i < [trade-record-one-len] of myself]0 z' G* }9 w: ^9 F5 K& Q" x, i6 D9 r
[
4 c7 x' n0 L6 J" O0 ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! p/ h7 n4 u+ L7 [* m4 V
set i& \& Q7 x' j1 e) T1 B7 R
( i + 1)
# y& L* x0 P# k- x% }0 B], G5 `3 V6 R9 _- f
let j 3. F" w+ E4 h! q; y( g; i
let sum-money 0- {" d; K6 c' ~0 y) T1 o
while[j < [trade-record-one-len] of myself]# d0 l/ \' L: Q! S( Z
[+ Z9 W: A' O# _ I& ?
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)1 ]9 X9 U# Q8 h$ I. U, E
set j
- F& P3 }' `7 l2 {( j + 1)1 ~ m i* t. B% y8 V: R- p) N
]
) `0 I0 H3 G5 ?let k 3
' @, ^8 [" M. B( A) A# {let power 0
( Q9 u( ^+ S. g1 o$ h' Qlet local 0
* X9 J- C6 m% l h8 U7 lwhile [k <[trade-record-one-len] of myself]
- g5 ]+ I( _9 `# Q6 l[+ ~$ X$ D! x: K* a6 W& {/ d
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) 1 @4 U1 m4 P" X8 h/ \3 i1 J( X
set k (k + 1)
K& H+ w- d R) O8 @ l]
4 P. u, A( _; g! hset [local-reputation] of myself (local)% H; V) Z- F) f2 s
end% [- ]* d( ?, ?7 M/ V0 K% _+ e3 \
& u1 {4 Z$ R N O
to update-neighbor-total1 c6 ?& [& S6 v$ d( m
- m! F/ l$ O1 T) _! U; s! c ^8 Q! Cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" O- F5 [0 y' z$ n8 g( G( t4 j" X
- W8 N: n9 r- u4 J- i( ~& r! q4 f) h, d& a5 |' I- c$ }
end
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to update-credibility-ijl & r3 x, o. _, f5 e8 w! I7 z
$ d9 ^1 |4 F1 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。0 D2 O s8 R4 Q
let l 0* @( `" k8 y D2 K7 O% b
while[ l < people ]$ B4 Z- m0 L' O
;;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" d9 K' d' B" E5 ^
[) F+ E- A9 g. r' D4 } g( T( W& N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 T9 B& Y7 b% wif (trade-record-one-j-l-len > 3). Y8 s' d' _) q* a' g! P
[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
& `3 N. @5 Y1 G. ^let i 3 o- L" u! `& Q& B
let sum-time 03 c4 T. v H9 U4 g
while[i < trade-record-one-len]
6 h# z6 |# ~6 C7 e+ e& I; R1 h[
6 s$ ]4 e; R+ ~5 Z4 Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), k7 }5 d1 h) q9 B4 p" _
set i
9 ~# l1 Z# G: g0 m7 d" b( i + 1)
7 C/ p; y- @5 j/ j]+ ^1 q9 N; W1 i8 v7 ]9 a
let credibility-i-j-l 0
4 k4 k6 t" w4 d% Q+ F;;i评价(j对jl的评价)/ b- `: K! ^! M' x* J
let j 3
) |' b z5 Z7 g8 }8 Y5 B* \let k 46 r" n6 @. `# a2 {6 B) D
while[j < trade-record-one-len]
1 [' M: h" T0 _* @+ l5 O! W3 q[' F4 U1 x% ^9 z
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
p: E- k0 p+ l* `) n% C% R, Aset 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)* l/ [4 }6 c& v% ?& P
set j
. |1 n* S2 n& G" L0 s& T# l( j + 1)
: [% p6 |; o3 C* C' x]; M; H1 ^- x$ c3 B; E0 W
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 ))
. ?' z+ V9 Q2 Q
6 N u$ K* n7 s
& K+ d( }' u% X5 B l: O( Rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. g4 g# F/ [' ?, H;;及时更新i对l的评价质量的评价* N0 I$ J$ h. j. l+ ~3 f
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 T( E3 W5 i. }3 A& O
set l (l + 1). Z1 L9 O" w% k! K! c$ B1 U& U
]
6 s; Z# A* X2 o7 T; R; k; U2 Pend& C7 K# o' U3 I0 n
5 w! r4 N; g; E* }& [9 G9 m( Wto update-credibility-list2 O- R! X/ N/ d* ?
let i 05 p8 s9 U2 A! k
while[i < people]1 |/ ~5 r+ _( \( t- c
[
& C, L7 V! J( C9 slet j 0# m& B- |; a( b- x3 F7 s
let note 0
4 q' h" S; a, p: T4 Rlet k 0 K* P2 p; I% z" v4 W
;;计作出过评价的邻居节点的数目" f6 B" H4 Q9 T8 j1 E* h* y* S
while[j < people]/ l3 h! `1 \, ^2 S' q
[
) L9 ~/ c# g: u# X( U( ^$ Uif (item j( [credibility] of turtle (i + 1)) != -1)/ e) o9 P, D1 @' p
;;判断是否给本turtle的评价质量做出过评价的节点
3 G# B6 T" u6 y6 `1 T* k8 y[set note (note + item j ([credibility]of turtle (i + 1)))+ A" L6 o0 G! o3 \5 |
;;*(exp (-(people - 2)))/(people - 2))]: @( J! G' e+ x/ ?' a* C2 d
set k (k + 1)* z/ G' ~- E9 d1 n
]
# f' G' C' q0 W4 `5 I. U( p+ z5 |% |set j (j + 1). d8 n( O+ e3 L- w! c
]1 K2 D i/ e) C) F% u& D# K% f
set note (note *(exp (- (1 / k)))/ k)
$ [ @6 H& |. M0 y$ o6 zset credibility-list (replace-item i credibility-list note)
/ z5 h. U0 l* Lset i (i + 1)
( o1 a0 V$ h1 U0 f( I# g]
7 [6 H! @0 N$ h/ g' [end* i7 e7 y0 M+ K- F/ T. ]
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to update-global-reputation-list& d' d) _7 d; V
let j 0
2 w% X. k/ j# `! j1 `while[j < people]) X& C2 w0 V/ r' G. X
[
% ?- N/ ], A- v) B; G9 \) flet new 0; b. g' J6 G- f6 i$ V/ S
;;暂存新的一个全局声誉* u0 ]3 \. [3 Y) e
let i 0+ X/ w& n0 i# ?5 G
let sum-money 0
7 B4 z3 D j/ B2 W0 Blet credibility-money 0% ^, I, x1 h+ z' G
while [i < people]
9 |5 a, z- T; D8 l6 u[
2 ?- w5 x. n0 [set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- L7 O* E+ y2 q: lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% t4 s1 N8 l: F C) P$ r- l, vset i (i + 1)4 v/ ]5 w& {/ q- `( a* f
]7 I% x( {% y/ s* H$ k3 e
let k 0/ M( Y( n; j" Q2 b1 b& Q
let new1 0' r) G. U' r3 R" r9 H
while [k < people]
% H' d# b! h6 j9 L! x( \4 U- P[" m8 k8 E9 {; @1 Q
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)
* X$ O$ h& ~6 ~3 B" Lset k (k + 1)/ ~( f- [5 b$ P7 L8 k9 a# u
] @5 t: I9 r- ]: b+ W# g
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) p& H; N8 Q- S9 m. Z$ x3 }set global-reputation-list (replace-item j global-reputation-list new)3 S% c. a6 y1 |4 ~9 |# ~- h5 V3 Y1 K6 C7 @
set j (j + 1)5 d6 o3 I2 `, i4 d. l2 K8 H8 N2 c
]
8 X. y7 X% E% H) n P# V Eend
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1 z) ?$ g6 N2 ?$ F5 B- L) T( b3 s$ ~( |
to get-color1 b: q& f+ J+ y, c" K
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set color blue4 E. j% \4 w- \* W: U
end; l6 U: @, W2 i r/ `
! a9 \4 d& Q6 U& K" A) y+ _to poll-class$ L0 s. D' a9 Y5 |, @5 C% }
end
" H, B) J. c) O* z& ^0 N0 ]6 Y8 \; V% Z+ H1 I0 G% S
to setup-plot1
) S! {7 d9 S& ]' z' {! h0 D; P9 T5 M( I: R: C- U
set-current-plot "Trends-of-Local-reputation"/ w# S2 z7 E7 ], ]) B; ?: ^
9 F+ R3 N+ q+ }
set-plot-x-range 0 xmax' |- l, k9 H% b5 `/ ~6 |1 R/ }
* e |9 p. M, }* T5 D( D+ F s+ o
set-plot-y-range 0.0 ymax
+ }1 M# Z' A$ ?: Cend
0 G* @ h; [* C# V5 z
$ o8 I+ f+ N1 C/ U# n5 ito setup-plot2% l" M- V9 O2 }" V, ]9 N& a4 C, t3 j
. g9 Y0 ~+ N" g9 T0 N/ [9 L
set-current-plot "Trends-of-global-reputation"2 ^1 o0 y# Y9 p5 |0 E
1 s7 n% y# X x6 A6 ]
set-plot-x-range 0 xmax0 W/ j+ g d- Z
; \; y2 v# g+ z. I% e" w0 p
set-plot-y-range 0.0 ymax
! M% J( T- f) r7 T, f) Zend3 ]% w; O! M& \7 y" W
& R# j7 n5 h; _8 R
to setup-plot3
8 [! Z1 Z+ [& Q
5 J0 H3 V' G% C0 pset-current-plot "Trends-of-credibility"
& @) }" S+ `) {: ^4 y# ~+ I& C2 L4 m' g, f
set-plot-x-range 0 xmax
# v" o: E0 j3 j5 e9 m0 ]- K) ~
4 K, F0 l+ A. H6 uset-plot-y-range 0.0 ymax
* h7 a3 Y9 E% t6 X. f5 b: jend" M s o- r# p. S* ]6 x9 l
& n* _+ X3 ^% u. C" W/ T" q/ e& p5 jto do-plots/ m- m, N& ?7 k- P
set-current-plot "Trends-of-Local-reputation"* M! m( X( ]3 `' [- G/ d
set-current-plot-pen "Honest service"1 h6 I T* K* o% S' o
end: s& V) u$ C1 S I; P: @% j
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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