|
|

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
8 v! a6 T# `. _+ T/ `) Xglobals[
V) V. L" t# x- T' vxmax
1 H* t) r" t' R6 B1 i) e$ vymax) C0 m/ A9 i3 O. B# s
global-reputation-list
( ~, z0 {. {* I" l" T% k
0 t2 G/ S: G! T, y' d1 q;;每一个turtle的全局声誉都存在此LIST中% H2 Q- h; X/ o# ]
credibility-list; O7 L( A0 X% M" W/ J" A7 c* p
;;每一个turtle的评价可信度: o- C: j+ a" M' P- j/ i
honest-service
- U' K( L! [& C: @% Eunhonest-service# u" O1 _, b. M+ K. U% E
oscillation* d `8 C' v1 s, n9 v' l
rand-dynamic. v$ x' K# ?: ^5 v' m
]+ m4 |; L8 G( E! Q
, D. V# `; T% dturtles-own[, m5 e/ W% W# z* C0 D
trade-record-all
9 K' ~( p& l |;;a list of lists,由trade-record-one组成
* ~0 S( X2 v: `, t# H6 }1 ltrade-record-one
, {4 h+ Q& r: F A;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
6 x3 K) Q1 q2 L% C4 ]' R
$ {: G" b3 Q& y;;[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]]
7 P8 G4 v0 ~) `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], X6 C& m o0 @2 e2 F/ t
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
e! V1 U. m/ w/ C9 ~neighbor-total
- j. X$ s) P1 {* Z# v;;记录该turtle的邻居节点的数目/ n7 q. W6 k7 c' b) _- h
trade-time
# n( v0 ?0 T0 a/ M;;当前发生交易的turtle的交易时间& n& v4 M/ v6 K( G2 w0 f1 k
appraise-give6 f; z! g* V3 V- [+ x- Y3 a K
;;当前发生交易时给出的评价
$ C' a+ Z" X- E6 _, Q. K7 Wappraise-receive. N/ D) `/ `1 ?" i c, \
;;当前发生交易时收到的评价' ]( o3 H2 K% |; [2 K. O
appraise-time% F( L" f' n* r) s6 s
;;当前发生交易时的评价时间
# o f8 E; l+ n0 H: nlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉* o2 r" s. Z& I! C2 A9 U
trade-times-total
4 a# ?3 o% D v6 V& z4 p$ n7 F7 k;;与当前turtle的交易总次数5 b, \$ w- ^0 a1 g6 [
trade-money-total
4 W3 b, ~& q- W;;与当前turtle的交易总金额# E5 J0 ?4 M# p
local-reputation4 N1 X9 H# f$ n
global-reputation% [- L/ n8 j+ y1 o# E O
credibility
( q4 P2 {( A' I- l;;评价可信度,每次交易后都需要更新& _9 f# U! J, ^1 d$ _0 q
credibility-all
5 z- V: v& ?+ u# o, u$ ~;;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; S r* X: [3 e
, M4 p o3 z1 a$ n( 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0.5( o4 ~. M; n+ l, W# t6 `" V
credibility-one1 z/ Q5 j8 F& J% F8 |
;;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
/ z# G( {- a! T! oglobal-proportion
3 Z( ?3 I/ Y: F0 Vcustomer4 W* ^) t' W ], }& P! ^4 A
customer-no0 p m- S8 c: P6 b& U- _9 c; `
trust-ok+ ]" ]% G" a0 @$ a
trade-record-one-len;;trade-record-one的长度
: V+ J1 G, a1 w9 h/ Y7 s7 o6 g9 ^! y]
. h4 U& q+ U5 |+ Z! b0 h. C" `4 [; ^* h8 e
;;setup procedure
8 z# R3 _; {: x; n* y" ]
7 C+ \0 i: U& zto setup
7 e8 c$ V: p( I
C# V+ a/ r3 U0 bca
& M; X! L6 n5 |, i. B$ ]! `
# [! b9 m9 v0 ^" `% _8 Xinitialize-settings% j3 H2 f7 P. h0 y* w% q8 n- B
, q& F! T+ Z. v! u3 [+ bcrt people [setup-turtles]# g7 h" q/ c5 _" l+ {
8 F. b4 ]3 o' h3 x7 V# V; w5 U
reset-timer3 Y- G; V# \# P
# i* X) Q' Z, N7 k6 c
poll-class+ O4 S/ g( s5 U/ M! C% Z) A
- g5 x% q M3 ]' P+ t1 Lsetup-plots
8 {, O& x7 |% L l/ D! u
4 `+ x) s0 S2 f! [+ Kdo-plots: Q7 z0 D8 g$ }( v$ u% d, |7 W
end
9 n9 O8 r9 D" I) ~8 Q7 Q3 n/ V; n8 w6 |6 q. q( h
to initialize-settings
5 b7 m+ O5 i' S/ m% z6 U/ `1 l% }* l
set global-reputation-list [] l& B, `9 ?7 ~" Y
' t: m4 b+ S9 i1 c) b5 E; P
set credibility-list n-values people [0.5]
% B2 d: N7 R% a8 i% N/ T# T8 L% U2 i7 \+ u% S+ f8 p( c* |
set honest-service 0
5 |/ V5 T: G# D2 b
1 \' o, m x7 w3 lset unhonest-service 0
9 L2 w+ x2 [9 z7 z( t* U
4 Z \6 B3 d2 W+ \set oscillation 0
, r& |- u1 t( z% c/ X( r2 O8 j3 C* `" ~
set rand-dynamic 0' J2 t+ e. d3 {+ V9 |) ^( z s
end
9 y/ {1 h+ L! A0 {' `, o K
; ^- {/ t; Q3 D/ k8 D8 ~to setup-turtles % s: ^, s3 A, M
set shape "person"
" |' f. D1 d+ G* B% gsetxy random-xcor random-ycor7 V7 [* M: G4 C9 o( x0 |
set trade-record-one []
, L% _- m# u) S4 t9 P1 `4 d- q% c+ o' y
set trade-record-all n-values people [(list (? + 1) 0 0)]
2 k6 s$ O g- i8 U1 ^
7 K0 b& x7 p/ E8 h" I4 Oset trade-record-current []5 A* r7 m) N* p$ L
set credibility-receive []6 C% V. Z/ E" T# m* U4 z- L; U
set local-reputation 0.5; i" @, d7 w6 X! r8 l1 F3 u. C2 a
set neighbor-total 0
. M; e3 K+ i5 iset trade-times-total 01 G& ^. ^/ E V3 X& J9 V% f8 K
set trade-money-total 0
% y8 q& _5 x8 N6 }6 W, H& Q, eset customer nobody. m" b2 W- ?% E- @& o( S
set credibility-all n-values people [creat-credibility]
: }+ O6 U' W3 U; w! D( rset credibility n-values people [-1]
7 D& G0 \/ c/ x6 N% |% [get-color
3 Q- [8 K, z! w p. C
# ?+ n6 \$ \$ P+ uend/ p$ B' b$ l' Z; a$ Y) k& E
9 P5 f7 k4 x" P6 S
to-report creat-credibility
7 \ [/ I+ d$ A0 {5 m5 ~report n-values people [0.5]
2 e$ u6 f3 h' T7 f2 Xend. i5 u$ C# G, p) N# d8 Y+ r& F
! N8 ]6 g0 O) t. V
to setup-plots
' s! E% R- ]; {# M
3 R/ M; x6 Y; i0 f4 ?4 cset xmax 30
& k% _+ v1 a) O$ H& \
0 Y3 L1 A% f- V2 j8 q) pset ymax 1.0- d* t% X9 w" B0 [: i7 o* }
2 t4 b2 S6 S' }$ ?8 T$ V. K
clear-all-plots% R0 N0 N) c- `; E O
! O4 R) {8 @% h X
setup-plot1! b, v, P& U6 F) T) q" u
: ], o) R0 h! d1 Esetup-plot23 ^! i+ @& y5 E$ i" L, A C
8 ?! ?, @7 p1 x& k; x/ {& ~setup-plot3
% I* s9 J# e% L) H: b" m9 d! send
+ x7 \# @1 O+ ^) T% ?* S {0 }" l/ U9 `# i' w' n
;;run time procedures
* B( I4 X! ]- b. g: j. w8 h* K. j4 {" U3 t# x) ~
to go4 \$ Z* Y& }6 L2 A0 [
6 d: M' n: |9 G: B! V& N, @
ask turtles [do-business]
# `. G3 N- e+ Cend
3 n. d8 e2 H. P) c! B5 G k L6 U7 ~1 e
to do-business
& L) P8 g- E8 y2 p% c
0 u4 ^* ~7 h( J+ } ]( s* w- T0 P0 e; z ?( q* v. Z. w
rt random 360
* E$ r& C q- x U9 }& r1 U6 `* B6 A! H; w% `( d- p. {2 h7 u% \
fd 1
& @# g7 h1 C+ ]/ C$ p7 n
1 W1 e9 ]8 U6 S/ n& i, pifelse(other turtles-here != nobody)[
# Z/ ]7 }% x& B* w( M8 Q6 k5 V4 j' o* C
set customer one-of other turtles-here" |7 Z, |! A- D+ K
' z- r, w8 F3 M& j& J0 U;; set [customer] of customer myself
7 }; f, Q" z) r% `, l( o
4 { \, r3 J! D W5 ]set [trade-record-one] of self item (([who] of customer) - 1)
! `4 V$ K: O" F6 k5 h! }& l4 X[trade-record-all]of self
& o0 K9 f7 w, B7 u$ R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' z% u* b$ i4 x/ r: `$ F, ? r
4 R s& E" j( ?: M, S% ~7 rset [trade-record-one] of customer item (([who] of self) - 1)
0 |/ l, G9 {" R1 ^5 A5 s& J[trade-record-all]of customer' O( s! E* \5 @) F p
" w0 a- x8 H0 X) B
set [trade-record-one-len] of self length [trade-record-one] of self
5 b, B6 D% a6 `, Y5 I! p: n y0 P8 |8 v+ I, O! k
set trade-record-current( list (timer) (random money-upper-limit))
: u# j u3 U: m; H4 Q, r) Y& i. P: f; F& w7 _
ask self [do-trust]
; z8 o$ S. e6 c;;先求i对j的信任度0 c5 k8 q" y9 ?3 U5 p1 t
3 B. O0 B/ i/ p, i3 f' Mif ([trust-ok] of self)4 i4 {' ^, o! h+ G) ]
;;根据i对j的信任度来决定是否与j进行交易[
- g, Q" M1 H% D2 yask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
/ z2 L1 A# D; }" B: {# g1 q2 t& g9 i7 {, O
[' N$ O; P$ n* i# L' o+ U! L
5 e+ d% W9 K5 } k6 J
do-trade$ @5 Q& ]1 F- G1 }) Y
1 @' [) q+ d5 Y+ u2 K
update-credibility-ijl
) U8 S. N3 Y3 {. ?6 i- J" q9 [9 Q/ D
update-credibility-list
* n5 i% @9 _6 P! |9 r* P
& Z7 m1 x9 Z3 D8 H W5 L6 F: ?$ w2 q5 \, l5 m" o5 y- T9 W- ^. ^
update-global-reputation-list1 b G8 A) f. E$ a6 x
1 o9 ]) `/ f9 X7 ^; Epoll-class2 N8 r/ s* {5 y8 p r' K
. \# i, F' v1 N( D, O# [$ ` Z$ y
get-color
# m: i2 m' g$ |9 Y- c1 Y; C+ I' e# H
]]
; J2 X2 Q0 C$ T) F* `' w( q
1 r, e& D8 ^- a. r;;如果所得的信任度满足条件,则进行交易
4 Y# z; z- I4 ]3 T: `/ e: W: |$ |( _2 n
[! {# b0 v1 ~2 m2 p, y ?1 }
3 u5 \0 `4 J5 h! mrt random 360! w3 G- x- ]; K" F
8 c( g) _! M% b3 V$ b( s, Tfd 1
- e M# v7 x( X: v" g4 G9 x/ h2 i. e$ G, a; f" t0 u
]
! W* E& L- K H/ |. I, a% O/ Q& s' B! V5 P/ g& Y
end% ~6 v4 I5 N# m5 b
" P$ d$ i+ M {! n& M
to do-trust ; O. m+ x! G }- z
set trust-ok False
N% q9 u7 r: U" M" ~8 {" t9 o% V+ \+ b
" o$ q, E# k. `: A: T: G9 C' dlet max-trade-times 0
! o' c. ]3 E6 o8 F( Rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 g+ |6 ]3 V/ f% e7 f
let max-trade-money 0 B4 s) E) }/ R2 U7 C: \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! O% I. b! Q) t) U2 g! K1 S0 U
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 O4 B% y" }- G" @! l0 F
9 p! w- M/ |' \# u' F% n+ n
6 q! z3 S! k) F2 m3 rget-global-proportion {! A% i1 D. v7 v0 C
let trust-value0 T$ @2 x5 Z1 e3 o# L0 ^
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)7 C: ]. W+ {8 t4 _( c7 p: H
if(trust-value > trade-trust-value)& J1 ~) v, ^: p$ n5 _: m
[set trust-ok true]: O6 r, N; @7 N" U
end
5 I" J3 a; k" F8 U
' Y7 w1 |" C9 q+ G) W. c7 fto get-global-proportion
3 g0 K5 `# j, m8 q) v. \. Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* o( F1 u& z% `0 Z. A
[set global-proportion 0]
( [7 w$ B1 g, ~$ a[let i 0$ v5 j8 R9 O; A8 Z% c9 T) K- [9 M! X
let sum-money 0
* L* o: q# y# E- p8 U9 K- ]" N* rwhile[ i < people]
; v& E+ R' ]) T% A1 X[' e3 f. e S: J' P5 Y- I" R
if( length (item i4 Z7 x" }, Q: S8 F0 C% W
[trade-record-all] of customer) > 3 )) U/ a3 S, Z% K8 L8 D$ S- m4 z
[
8 S( ^( f( M4 q0 Aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 g% T* W. X; M) D3 H3 s
]
. h: V" M. z/ D]
- a% B" h0 ^" g9 ~% }, flet j 0
/ s2 o! ^( g! L, jlet note 0
h8 `, C8 U- K% awhile[ j < people]8 \$ h+ Q( \9 c% s* O
[# i; [$ I, O# B0 \
if( length (item i
4 G$ j8 a+ N8 o8 c7 K' a( ][trade-record-all] of customer) > 3 )
) p3 ^* H0 X5 _2 z3 E; Z* D[
) N2 L; G( ^/ q0 M6 ^ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 M+ l5 U6 t* E1 j8 x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* ?9 `% T+ g( A! R[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ z7 X: c1 u5 D! N2 Z" w
]
' h7 L U. z K5 z" t]
, b+ [% i9 C4 k- Fset global-proportion note2 |2 P- |6 [8 G) d- S
]
* }4 V) T' P9 d ?: w' [& B1 zend5 j V. q. f# u( C. g* \1 n2 X
; ]5 L0 u3 W' ?/ ]+ q1 V$ g/ jto do-trade
$ W% W, n: r7 g;;这个过程实际上是给双方作出评价的过程
9 F/ m8 f$ Z/ m( }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 [( F+ @$ a* D1 ?. G: m0 H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& ]& f3 I! B [# e
set trade-record-current lput(timer) trade-record-current% V" B! T+ Z H5 J" p" }
;;评价时间
+ b" R& g, Y5 X) H0 u' X. a' [ask myself [( G2 a! h# S& P2 h8 n& B$ N7 g
update-local-reputation$ k. \; Z* \8 ?; U- X' g5 v
set trade-record-current lput([local-reputation] of myself) trade-record-current
% C" Q! A. E7 ^! _9 z+ ]5 q]
3 w% F( V( o- T( K) sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; w8 }6 p& E5 \, H
;;将此次交易的记录加入到trade-record-one中
+ g2 I* s& c- r# t9 Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
r. r6 [3 v9 m9 X1 f3 w6 Dlet note (item 2 trade-record-current )3 J: j. `5 a: ]3 ]" g2 Q
set trade-record-current
e, M9 v, \/ L(replace-item 2 trade-record-current (item 3 trade-record-current))
1 f4 w& w' u- r2 Q/ bset trade-record-current5 g% z! ]6 ~: b; w% t( |2 d6 s2 m' P% S
(replace-item 3 trade-record-current note)
+ x% E w6 {9 T" V, n L) O0 v, K- S$ v8 r4 q
$ a+ `% _( _& {ask customer [
7 L2 O( t3 q' ~) p$ z0 _; A8 Uupdate-local-reputation8 P A& W* u h/ |0 C# o/ {
set trade-record-current2 v$ m5 I8 o4 T7 i- Y8 V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* \7 |+ Z, k. U- o& x]! O% }) a/ f3 @: W
; W; N( h! e' y; J2 \* J4 q% }+ `5 L* W9 Z4 |" A j
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 \8 [! |$ C6 g, c$ n% H- V4 X8 e2 ]8 d4 c4 ?/ z& s* ?2 G9 `: Q- d
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- e! V7 m/ T5 k7 k+ J1 z+ b
;;将此次交易的记录加入到customer的trade-record-all中
& s/ E+ e2 N2 n7 q) M vend$ T! E0 }. g7 L
4 Z: Q3 B9 p- R7 h$ A# @2 \to update-local-reputation0 U V* g1 i( _0 Y8 T" S Y) M
set [trade-record-one-len] of myself length [trade-record-one] of myself( x D8 O; w' K2 l& Q& z" w
! o3 g& ]7 k4 J- C2 ^! ?" B; x3 I/ ?- q
;;if [trade-record-one-len] of myself > 3
$ A( H i0 b3 H5 {# k& c7 {7 iupdate-neighbor-total- g, M h/ v2 c; Z& {- s0 }
;;更新邻居节点的数目,在此进行
' ]8 [9 T8 G, ?$ x6 K" _" c6 qlet i 3
* W* c: m9 C9 P+ S% l; X. Clet sum-time 0
# v5 M+ Z: h2 ]8 \. X" U3 `while[i < [trade-record-one-len] of myself]
$ ^( X/ w0 X' D3 P[
5 H0 _* Y) A3 u U0 }8 Z6 W: j; [set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 t, E% t# _- z1 O- h
set i
}9 e" k6 U; P# T( M6 n D0 _* }( i + 1)
! W1 T) S# x3 K- F; A, E0 y, ^- N]
% ]/ C5 w* Z% B; Flet j 3
; e8 I$ J1 K$ x7 c, K6 G2 Qlet sum-money 0
) r) S. Y3 P! }9 Kwhile[j < [trade-record-one-len] of myself]
1 h3 p9 y5 M3 K/ W[
% j( F7 E8 q1 Z/ y+ ^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)& g0 W& X. Z) k
set j
; O" l( K2 W) r& S" T( j + 1)
* l* K2 y C) K6 w+ ^5 b]1 s6 \$ J% G# a2 Z y Z
let k 3# z6 Q2 |6 ~* |9 M8 b' U( o
let power 0
) ?( o+ \3 N$ elet local 0
+ \4 b# B$ Z5 |* P' I) C) I! vwhile [k <[trade-record-one-len] of myself]
0 j F/ q& y4 Q4 ~% I `9 ][
2 x3 [; |8 ]5 S7 X3 T i* V# e* Uset 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)
7 w/ I2 O+ Z- v* r2 J o# mset k (k + 1)1 p: j# w* E# r& Y3 h
]
3 D3 C2 Z" w7 n0 Vset [local-reputation] of myself (local)( S) P* X3 U( I% C$ F- y ^1 Q. T
end x8 M, D) [2 `) v3 u
% e% M& c7 v7 [to update-neighbor-total
0 X2 r+ `1 G! L9 Z$ S3 L0 g2 Q) S# l) L( C! z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]/ @0 m' O9 R' ? P( j6 R8 Q
* o2 \ x6 H+ b) v2 [7 ]8 e
2 h; E5 n4 Y4 i1 B$ [! ~end
, C( n9 p: V) P7 V, r& h/ e# ~ B) F! V( }3 v
to update-credibility-ijl - ~5 { ]% B7 s# t6 _" b; H
" F$ P( c! Y6 i8 C
;;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。
8 D/ |* A* O& s5 \$ R4 c D9 Hlet l 0
6 Q* N8 |' V1 U4 A5 c' uwhile[ l < people ]; Y( ~# _! G% |7 L
;;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+ L: u4 b4 E- C7 T' }: h+ V6 A" c
[
$ [5 d0 {; v9 s' mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 `% T3 \$ P5 sif (trade-record-one-j-l-len > 3)
( Z; ]: i" _8 b$ n" C[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* W5 c. w2 i% l/ l9 F I
let i 3. I, B# v4 `' g/ a1 q4 k9 |
let sum-time 08 o, J/ v6 `4 ^1 C% {! ]4 F
while[i < trade-record-one-len]
4 M7 T! c( |1 L P4 B[0 }. d+ I8 ^" C* k4 v* N" n" C: Y! Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% K. ^" V9 e- r, x. nset i
2 \7 Y" f) o q5 A( i + 1)
$ }7 Q, v$ j2 _, W& W]
: Y" K! J1 f0 r0 |! `+ Y' [6 llet credibility-i-j-l 08 `( L2 f8 e( r: w0 I: d1 N
;;i评价(j对jl的评价)
* n5 N$ c) D) J. D3 ~) x/ j- Rlet j 3
9 Z7 H& k1 ?4 K- [& H) jlet k 4
( D; }, f0 D6 Qwhile[j < trade-record-one-len]
; Y1 x5 O8 |1 q( V/ Y" \5 \ t[
3 R9 L' i6 Y8 Q& J5 |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 f# _4 O D! |+ Bset 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)! A4 b G$ Q. t$ a
set j# n5 D# ~, J' B3 C0 i& `
( j + 1)
1 ?/ k2 g( K3 A" I/ ~& m8 M]5 K9 Z+ ]6 ]1 a& ~
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 ))
) y# D5 K% `; r! ?; T( E7 U6 m B# w7 Q( X* p* r
" V, ]6 ]: ~/ d9 llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ U2 X4 H1 { L3 Y6 B. V% p
;;及时更新i对l的评价质量的评价
% h4 M* k: a+ T& G0 K1 N1 h4 ~' pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 y4 ^' X) f5 ^, V& [' w
set l (l + 1)
# G7 L% h H7 z# u# f]3 G! h' P* l9 L( P, z n( c
end2 k$ l& ~) Z% l5 H
0 W5 a0 P7 L9 H" M
to update-credibility-list# V9 ~2 U. t- [- z: ?8 M3 [ f9 w0 V
let i 0
9 k; k7 C4 _0 A, ?9 H( @while[i < people]9 J+ l8 u& V3 F2 c) ~3 C% L/ y% a2 h$ N
[- x' O+ ~6 v, D1 z3 i6 Z) g2 W. P( m
let j 0# W( s- a2 W. R" C& x- n7 C
let note 02 ~1 b# s! g. }
let k 0; D8 Q' D" o* q. q; g
;;计作出过评价的邻居节点的数目- Z; m" @, y& [% Q- p
while[j < people]
2 r Z$ b' J; y3 U& e; A) L[
: Q) b9 s5 r. z: E* Yif (item j( [credibility] of turtle (i + 1)) != -1)
( |# y/ o1 l$ e5 n+ L2 K5 e/ p3 C;;判断是否给本turtle的评价质量做出过评价的节点
3 Q# Y# u# S2 S7 Y) F- ~, a[set note (note + item j ([credibility]of turtle (i + 1)))
, @7 f9 v% l" T' W;;*(exp (-(people - 2)))/(people - 2))]
$ k/ a7 k+ f: i$ q% uset k (k + 1)* e2 v; O& m& a5 S, F
]
; C# ]! x: L) U) } z r; U. tset j (j + 1)* n; n) f* T6 x$ y8 V9 W
]
( G! S/ \1 I" _$ J! Lset note (note *(exp (- (1 / k)))/ k)
2 Y8 E- f6 u- S4 a) w5 Oset credibility-list (replace-item i credibility-list note)
v# W' _5 Q4 j! D4 L7 qset i (i + 1)
- d: d4 C0 H1 K]4 ^ c( y0 @2 w' n6 f$ J. _
end( b2 B. U; s4 h: M5 V: Z! Q
. j. \! U0 g3 j5 N2 cto update-global-reputation-list
, }0 Z4 J$ Y# M5 w! X0 K6 Q$ S# \6 ^let j 02 S; X- p; g* P$ d
while[j < people]& M5 a- i- _. D W0 K
[- J* h4 T9 k9 B3 s9 K
let new 0
/ D4 I8 q% Z0 G+ R, ?- [( T;;暂存新的一个全局声誉" J1 y' m1 k& |- [7 x& u
let i 04 f8 c% H0 y- l- Y& k, G e
let sum-money 0
2 X l# q0 [7 elet credibility-money 0: M6 H& p" ?1 K
while [i < people]
5 i/ _6 p" X) X2 O% p6 N9 s; f/ e1 A3 i[! ?( p; \5 |, D) Y" m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 k8 K# ?3 e- Qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& i0 N8 i( i) \$ i1 q: g b
set i (i + 1)
9 n' b+ P# I. R$ ?]
- h. O' q: d3 J elet k 0; l4 ?8 C6 G# p- W
let new1 0
! v6 `! g7 G+ ~( h }while [k < people]
" \+ g& \ Q" P1 {" Y! S. j/ @' h[, r$ ?2 F/ z. z% O5 z! A0 v
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)7 @/ h# t5 s! v; ?
set k (k + 1)
( \% l, F, B: R. C]2 {0 c. o) W- O& Z; |% {5 E" r* @
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 I. P) J, C3 s
set global-reputation-list (replace-item j global-reputation-list new)
; H+ C+ F- B1 p" ~' p( Mset j (j + 1)
4 B0 P$ h$ ?7 J+ K4 N- e! A], c" T1 X, P) M; C; Z
end
' P8 D8 T0 P- k. N" g* e; K$ G7 [: @" a1 S" B3 f) c
4 Q R6 }3 @2 A1 X6 t5 l
( I6 p- `4 Q: O6 M
to get-color1 D% l, [. j# N% j* i& p4 h. m8 Z
$ H( p$ K# E6 q0 X9 n. }
set color blue# ^, V. G! E# Z' [6 U
end# `2 A, H y5 | `5 y! k
1 E& q5 W' Q5 z7 m/ C5 L
to poll-class( h V3 L6 R( X* S; D
end* p/ h# L9 O* e3 N$ m; K3 {
4 W8 Z8 b$ y2 u+ G
to setup-plot17 z9 X& s6 Z. ?$ E: I/ Z. A* f
* @+ M6 D& C8 ` @+ J* d6 _7 R2 kset-current-plot "Trends-of-Local-reputation"
2 l2 ^& Z* z9 C1 b& o$ F! a! u7 q* _! X- b
set-plot-x-range 0 xmax4 z7 ~& m. j' z8 ^9 B
- [8 j4 [. J3 ~! U& w) S( Eset-plot-y-range 0.0 ymax2 _: g' b6 _! J- d5 G9 g3 q
end4 x; O0 l1 {0 k. R1 `6 ]
0 W3 F4 C& V# s1 P) x k' wto setup-plot28 r1 t6 g' G, u2 I/ w. W) l
' i9 @& d/ q% L9 {, W5 Y
set-current-plot "Trends-of-global-reputation"0 X1 a. n) P$ j' H# O
2 x' I* C6 N% Uset-plot-x-range 0 xmax
5 U) G# ^8 a6 a: O% X* w% |8 s0 j( t, Q* Q4 A4 p8 h( H
set-plot-y-range 0.0 ymax
. m" L2 q1 o4 N( D1 {: aend
+ P1 `3 Q* E( w: Y+ V
* B/ k# I- T: h* C* D: T4 k5 ?( Ito setup-plot3+ a# [" ?1 K( o* O
. ]( L2 @( q/ J% K" C. P9 g5 Xset-current-plot "Trends-of-credibility"% _+ W; i$ N( x- Q8 n- X
7 }; _+ E8 p+ E$ _& `- @1 x5 S; uset-plot-x-range 0 xmax
* y5 f2 ^+ V8 R8 H- i+ ?4 G: J. H3 Y) q% Z& I1 _4 e# B( J
set-plot-y-range 0.0 ymax
7 O% i+ e% S% a K& Fend
& [& `$ r( x9 Y1 D" O' y* Y! }# D9 D" V1 w* R! ]% }5 Y ^9 g' I5 @- q
to do-plots g- F8 h& n; X
set-current-plot "Trends-of-Local-reputation"
0 R! u( m$ }9 zset-current-plot-pen "Honest service"3 B2 U/ d5 A1 \4 Q0 Z/ _9 S# w
end& C d' H. U! y. w w
% X) l6 q% ^, T& s[ 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
|