|
|

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
- W7 E# y6 M( s6 ^3 Nglobals[
3 h* @" a. o' T. ?. d& @xmax2 K- G& R; e. i2 e# d
ymax
2 ^/ n' k F: x9 xglobal-reputation-list e& N1 i. U, F
8 B5 I% D" ]! T6 Y, {7 v! J! l
;;每一个turtle的全局声誉都存在此LIST中
% o9 z) T2 b; e( s! jcredibility-list
" n5 g* o/ X7 Y" g;;每一个turtle的评价可信度
) u/ f/ p5 }% E+ ?* e0 P6 ihonest-service
8 ? x; Z! s8 B1 }. o2 z: r0 E3 eunhonest-service6 C& D- ]6 u, m6 H' f
oscillation% Q4 H2 Q3 U$ u( s
rand-dynamic
' l5 w5 `1 `; s4 I- ?$ R! K]+ n8 O+ Y7 z0 `1 M2 W
& d& j6 T3 s" R: Y
turtles-own[0 b, L! ~3 j' Y6 B; B
trade-record-all4 u+ w9 p! H! w$ P
;;a list of lists,由trade-record-one组成, K- J5 g* C9 J! c5 C
trade-record-one
1 K8 P( m5 W3 Y y; Z7 R; o9 X( p;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; C2 _" ~# J+ M2 ^+ V2 v! Q& A
: g7 O2 T8 \! j9 S+ M;;[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]]/ ]" {$ T1 p& R2 U! B! t
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]" B, ^+ w) t/ B
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list7 _( C8 K- j; A" {# F" t
neighbor-total* }: K- x4 P' |
;;记录该turtle的邻居节点的数目$ }3 X* I. o7 m, L
trade-time' j$ Q! L" ?- K h
;;当前发生交易的turtle的交易时间
1 r8 [. E- [) J4 m& Q7 vappraise-give
7 v$ N. k! T, _6 ]% x& q;;当前发生交易时给出的评价 n# P; D0 z; X$ f4 @
appraise-receive+ K! o4 { h. K9 a( M# L
;;当前发生交易时收到的评价
1 e; P8 s Y. H: aappraise-time
5 j7 Y) y( `8 x;;当前发生交易时的评价时间
: a# O8 H; ^& H9 Z. Tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉. q% L, ^4 c9 ^* I5 n o+ e4 U
trade-times-total: M& I0 u% j% H, n! J0 ~7 P |9 j
;;与当前turtle的交易总次数
+ o" Z& W2 K$ Y+ H+ U1 |( Ytrade-money-total/ z0 {* d- w5 H9 Y: S& ~
;;与当前turtle的交易总金额
$ T# F0 ?+ l* A; a# p( b" tlocal-reputation" w3 \0 Z1 g3 Y3 r( R. e& P" O" c
global-reputation
0 F% i/ b1 t- T+ d8 G$ {9 Jcredibility
2 W. o' S- y7 X6 _5 F* n4 u;;评价可信度,每次交易后都需要更新) S7 ^* B2 E0 K) Q* ~# Z
credibility-all- d5 z1 N, A9 b2 l9 s3 V/ L! e7 f7 C
;;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 ~5 V7 P7 j {; d6 `' a
, r/ R$ x6 e+ _;;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
5 Q3 Q' J+ i1 k" C5 w8 w) Xcredibility-one: |7 N8 M1 [/ _0 W2 R
;;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
& ^3 g, p! j& k% V& S, oglobal-proportion
v* o8 [, Y8 Qcustomer
( Q( e h4 G* u4 [customer-no
6 M" R! z3 }1 E1 z! |5 I- R1 m C8 @trust-ok1 v. j4 r4 p6 g+ Y; R9 l; @
trade-record-one-len;;trade-record-one的长度
6 ` i& o! A. d1 G) S]
# n+ y4 S/ U. y( c. Z7 d t- [! J7 t
;;setup procedure5 K2 f) K# D+ h+ q6 `; G
5 g5 o. S5 G1 g' V4 T; L5 S: v! Dto setup7 d7 J! g) t, P
3 q; ~+ d8 v8 X" q- O" f
ca* i4 n! Y; T: v+ T' n0 O
# w& v( |" [* ?3 {0 a! ~7 e
initialize-settings
C1 `4 J$ U$ Y# A$ |; Z/ ^, b" s9 g) l7 S
crt people [setup-turtles]
# h% t0 W: ]- d3 Z: g0 _, M: V! U; a% T' x# Y
reset-timer
7 \; L: P6 p) [. `& n0 I& [( T3 P& ]6 Y: ^
poll-class, V0 N" q& s% k! s
: q* R2 {& x: g/ asetup-plots1 L/ q- `1 j6 _6 x6 c
+ [( `8 z7 g' Y0 Z' T7 O" wdo-plots
* z7 |. S' D' |end& Y8 U: z- _9 D4 p' N5 N$ L
, G; N; z; A' l! L, k6 m: Y" lto initialize-settings
) X3 P4 r9 _ B: U I0 a+ {4 {! ?3 B" z- l$ F
set global-reputation-list []; K) L" w$ d5 z8 h3 o
. e5 ^# w# y, v/ Z; \set credibility-list n-values people [0.5]
/ }8 @9 {; n* H* F) s. v" {4 F: h1 F' s' `6 _" {! l! V
set honest-service 0# a, M* H2 R l6 l* _4 E
9 Z4 P0 o! I4 p \( z4 j, `( Eset unhonest-service 0" b& E2 @6 k6 x3 P% l
% T7 m4 [# B+ g8 ^: l0 z
set oscillation 0
( S7 D* w! o d, o# q) N( `" Z6 C" z2 r* a. ^0 I7 L
set rand-dynamic 0
% Y: R9 k3 k8 ~2 B2 Nend2 U1 V$ m+ w, W' H0 @0 G" j- d' }
5 k& q- g' J" u6 t0 b1 Uto setup-turtles $ \# Y3 ]# s( C3 v, O. E% ?
set shape "person"9 |% }7 ?+ g* i- P; r; Y
setxy random-xcor random-ycor
. h% Y, M( B! i/ Y5 J1 N8 Jset trade-record-one []: l, @& E- R5 a& S% {& A, y
/ n7 P& r4 A* ~! N& x' P
set trade-record-all n-values people [(list (? + 1) 0 0)] * U0 m5 z# W% b C% T. H
0 k& q4 x! F+ P
set trade-record-current []
+ w( G4 ]- O" ~/ ?" d* k$ \set credibility-receive []3 h1 I5 |+ ~7 z5 A4 _2 ^9 I
set local-reputation 0.5
' B" r: G7 {* n# j( O% w/ m. M: `; sset neighbor-total 0
* A3 D9 `7 m0 ^: I) L" |) Nset trade-times-total 0
2 L/ J. ?# Y% d0 fset trade-money-total 0
Z6 \0 w6 T( E/ T9 }3 pset customer nobody) S. d v5 ?1 H+ c/ ~
set credibility-all n-values people [creat-credibility]! W( a7 R9 ?* j( L3 Z3 `9 s
set credibility n-values people [-1]! \4 d- {. k# D/ `5 g/ e
get-color9 b. F: z5 y' F0 |2 ?0 P' ~/ T
6 _* I- G: @* W# O# r
end, @0 z N6 h% E: p0 _* F$ G
) a# O4 C7 ]* M" z0 J
to-report creat-credibility
* W9 _/ g4 X7 Q7 e5 oreport n-values people [0.5]
9 U% _4 ]' f: F& t- g! h4 Uend
2 y( H9 f7 b4 O7 M/ W
; `& Z) J% Q* }( h7 i# Cto setup-plots
4 B9 R7 H3 k1 Z" V
5 j* k$ z5 e$ @1 ~set xmax 30
- [) \; Z2 j6 f& o2 e+ ~3 h3 b. \
' K8 z2 l2 K H1 J8 j6 Z3 Cset ymax 1.0
; g6 h: O+ {7 z4 e+ L( W- i" o$ I0 j+ C3 e' [
clear-all-plots
2 P1 c& A1 f$ K, C+ }- E% C# `+ `$ P
setup-plot1 x2 v8 k9 p0 r) O* _4 Y' S
% Q2 `& f' T+ X% p' D0 p- v( E
setup-plot2
$ I& r9 C8 F J# k3 f
6 i R& t/ Q% r" zsetup-plot3
# X7 k4 ?1 E+ F! ]: T! F3 W$ Uend. R* i1 l$ }3 P
W# H( g3 E* \# G7 ?6 Z5 Y;;run time procedures9 ]! H. u) S9 R y- |1 T. X' }
, i/ x1 o/ t6 {. d; h
to go" _: p" Y" }' Q% U
. {) k* b; R4 c3 y7 p0 M- B* j% _
ask turtles [do-business]
: ]3 H9 w3 p5 Rend
/ a$ _" i/ k) l) E, W; A5 x
; N; @' k4 u9 j3 i8 b2 Zto do-business
2 e! q7 q% `: Y: l/ |) T: H" j+ R( k* S* V7 z5 r
1 f2 o& ?8 X% c! b- krt random 360
- u$ a! w6 L% T9 j9 E
8 l* w! J, p. \fd 1
1 ~; w2 C* H+ Z4 v+ i. t6 `1 D/ m9 o6 \! X8 w# `: e
ifelse(other turtles-here != nobody)[
/ K |. a$ @7 x# I; k/ t4 u, b2 R2 W- H8 x, I' D
set customer one-of other turtles-here
0 \' Z% t7 |- |# {; Y3 r% J) z2 F
;; set [customer] of customer myself
% n) j1 _+ Q; u4 P& f0 i% @$ ~2 I* M- J! U1 U4 j
set [trade-record-one] of self item (([who] of customer) - 1), H8 s3 m7 B1 G5 I
[trade-record-all]of self
# e9 q3 m* m6 a2 j% R3 V;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 t, P$ U# Q$ d; f# G" @0 ~* @4 |" j
set [trade-record-one] of customer item (([who] of self) - 1)( N9 d7 O; A$ m6 g3 r
[trade-record-all]of customer1 ~! ^! b, Y1 Q" q6 O
9 t9 X, Y2 t+ Y* Q& ~, H
set [trade-record-one-len] of self length [trade-record-one] of self+ B6 m1 F1 l& Z J3 Y7 A& I
: P& O w% S7 e) \
set trade-record-current( list (timer) (random money-upper-limit))
: S% f) e; `* I: X
9 Z: c: u" q: X1 K1 u7 V$ sask self [do-trust]# r+ `7 b5 \3 A7 C' x' {
;;先求i对j的信任度
0 J% R. ]& b3 {5 a; x9 E% a% ]0 _' H/ E" K. c5 S
if ([trust-ok] of self)
" l7 G ]# i" Q;;根据i对j的信任度来决定是否与j进行交易[
" O: j" l \2 u1 t& S4 ~ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. z: t" e' U/ I. N+ b. Y6 |8 K8 A0 s+ H) H; F$ t: S8 k
[
1 ]7 b. G# S' {7 |/ M9 B, b
( X! {0 g1 o' O) r- Ndo-trade
6 {8 v; K4 U& F& @% n3 Y/ a3 j/ K9 j5 H8 E H, ?
update-credibility-ijl2 ]: D4 o( v6 t I7 t1 x* I( X
7 `* z+ i5 j0 x4 q5 M) @$ ^0 g
update-credibility-list
, L& f. K0 O Z+ i
[" p" z |; S) Z& G3 Q3 b I8 C: z2 ~0 x5 F
update-global-reputation-list3 |9 D$ M8 _/ E* x
, ?3 w3 L4 \0 Y3 o+ f
poll-class
+ f" X9 W& ^2 Z' Q& U' }+ Z+ x, Q; X( I# Y5 O. e4 l$ T0 ]
get-color
) R6 }1 Y0 _: H- e1 w I5 d( W% J6 W* U3 ^& j2 n
]]" C& a/ s% |; M! Z: _7 N
. D$ Z% q2 x( s; ]' I T. Q;;如果所得的信任度满足条件,则进行交易& C! p$ k! B% X3 |( y( b
1 [1 b: A/ o4 s8 ~: Q7 @% e" A# K# n
[
, Q3 V( h( _; E; @ j) c
* I- [$ A- q5 p. Y% K' g* ert random 360
- e4 e3 r7 N( _5 D5 U. y A ^
4 X! E& n% F/ m# f. C# A/ \' E# Bfd 1
! t% @4 _& m9 ^9 m, ?
# r, j- B1 ]/ l* j: T7 a]7 p1 e1 p& _2 D
1 Y9 D8 A* A! d# c$ v8 p L
end
. `+ a7 U+ f5 E' e$ H0 w u! T) |7 i7 }. G/ j' i
to do-trust 1 s4 }, K0 t# w# i
set trust-ok False# a4 T5 C- w) I5 V# h$ u
( F& e* U6 r- \ V
: y# { [8 j$ r" n' y2 X1 M
let max-trade-times 0
+ X# \: T3 _2 O# |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: e9 g. N& v+ R; E3 P9 R: ?- w6 [let max-trade-money 0; A8 g. V. k q
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 K$ {, K ]9 C* \; E l+ M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ K" A- I! Y1 k5 u% U, Y4 G6 N
# X$ Y3 Z& U5 t& S# C6 K, H/ y) L
2 v p2 e/ I" F5 K+ bget-global-proportion8 I8 P2 ~2 Y+ Z
let trust-value
% G6 T1 Q- B. \5 f9 klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
- W! R+ x5 E [% jif(trust-value > trade-trust-value)
. A) P6 h! B! ?6 |, g0 J[set trust-ok true]" S3 K+ L) {1 H& m/ ~& H
end
! S/ D% L4 Z: a$ |8 l9 \4 Q( N: v( E1 z8 i
to get-global-proportion) a: \: [9 n& Q- W
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) F, j {- P- R
[set global-proportion 0]
& ?" U9 j/ O) x& V; s* U0 E0 T[let i 0: x6 e: d( ]; s- Q7 ]
let sum-money 0
" `: k$ ~/ A- v' J8 m/ M* owhile[ i < people]7 z7 d9 v2 { l) m; b8 s, a
[. @6 L; C# A$ e; P* a
if( length (item i. f8 \" w/ m V' y' ^
[trade-record-all] of customer) > 3 )4 D6 C& b! x* y3 y. E
[
: W9 J% o7 X7 [" x+ kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 b% W7 J% I. a3 j# c+ N
]) w: v& U4 D9 |1 H; A
]
3 p4 z x$ X$ k* elet j 0
) K/ Z) r' Z! b; V. F7 p! w5 Klet note 0
+ b2 j+ W1 B; c. Y' B8 \while[ j < people]
- g/ u" N5 y4 _; Z: b0 r0 a3 g[' t1 u! Z% C" g( v5 x% `
if( length (item i
5 [1 g6 H) B, L. C4 T[trade-record-all] of customer) > 3 )
8 e; i/ ]5 L, O7 \! `4 b[. X. w0 U2 S% P, v
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" U* Q8 n% j3 q1 B3 ?' p[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 H" A* A4 \% o+ C! k( U8 a8 [[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 F) B, l" {" a& A4 o8 X$ C
]
0 h p( }/ o, S* h]
4 ]& q a9 Q) W" N& oset global-proportion note
2 c" s. j% t& L G]3 M& b: x( }& Q. Q5 K; h8 A9 H
end! I) R9 ?" ]* u. x0 ^$ ?
0 i7 E# S) {1 Q2 }$ I# f1 b% r+ r4 ~8 C
to do-trade
3 z+ m: g& U. u% C;;这个过程实际上是给双方作出评价的过程4 g3 a$ T, n( z4 k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% ]& x" D" X7 O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ e3 E7 ?" w* b- r6 Z- B% L3 |; Sset trade-record-current lput(timer) trade-record-current
2 D- l0 ? u0 e5 i, j6 \" N;;评价时间
% L; N4 ]. j( _; Dask myself [
6 Y" d; E- L% rupdate-local-reputation
8 N9 \& m! [: d$ v2 zset trade-record-current lput([local-reputation] of myself) trade-record-current
, j# z% H# S A/ G9 S4 T o]
5 d; _/ D) u6 n8 n# p! b2 E2 w5 {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ u4 C2 S7 C: R) _/ D1 `;;将此次交易的记录加入到trade-record-one中0 R! j2 o/ |2 R5 l2 C( _
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! V& O! l; M2 E) Z
let note (item 2 trade-record-current )- Q) k8 t/ @. C- E0 m! k9 ?0 |, G
set trade-record-current
/ j2 f$ S7 R' X) K+ y) B" X$ s(replace-item 2 trade-record-current (item 3 trade-record-current))" F) m- }' _! u8 E3 J/ a
set trade-record-current
" t9 z0 x5 _6 n, h* [(replace-item 3 trade-record-current note)
( i- `* [" R/ E2 M5 `" b* M2 G5 D7 m
$ s$ H1 e+ W b' x. F2 b5 V* M3 p
3 P" o" U. |# Rask customer [
3 `3 z- a7 ^! _* w# h+ o1 Vupdate-local-reputation
) ~3 ~+ R/ t7 @) I6 Rset trade-record-current
. M; z! V" W3 i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 b5 F/ \9 N) n2 n+ k5 v0 D. X]
6 |0 ], @8 e4 w* k8 ^, P i9 G# N% z0 ~" M+ y. F
( ?! h; f6 F+ y, m$ Rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 q( h# _* S4 D' k+ v. `3 P3 `7 U6 h: I
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 a/ L' z+ U3 J" t& _# S% i
;;将此次交易的记录加入到customer的trade-record-all中
4 K5 Y" v0 Z3 P/ B1 |% iend8 E9 Z9 ?8 p, p( O
' c' B9 ^1 u; E5 A) L4 q! d& T+ p% l+ wto update-local-reputation
x: o7 c* P2 v, oset [trade-record-one-len] of myself length [trade-record-one] of myself
% D1 R. z' b' d2 _" a4 ^0 q# n* |; y$ t: x
2 I, F3 g C( H8 Q; K: H: C
;;if [trade-record-one-len] of myself > 3
\$ ~8 n8 q8 Zupdate-neighbor-total
: T R% }" E+ N;;更新邻居节点的数目,在此进行7 w2 Y; K2 n! ^5 K, f! l/ f! V% `7 o
let i 36 a1 F3 k+ Z" H5 Z! F
let sum-time 0" n( e: P) | w& J
while[i < [trade-record-one-len] of myself]" C% N/ _: r2 Y
[( f* Z3 J5 I6 f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( U& q3 X; v# Y5 e: x8 U
set i
+ j$ j, b" [: @" Q- L' }" x( i + 1)
& R) l& a1 Y- J! k! F]
1 v7 A) a7 [4 s. Dlet j 3" \1 n6 p8 Y! ]; F( s& t
let sum-money 0+ Q+ ] q2 [" X
while[j < [trade-record-one-len] of myself]$ d! h- R6 l; f8 E4 {! k" \/ L) C
[- o% M: L0 b% Z* A# Q1 M# h) r/ u/ t
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)
. s% D% J, _! l: S( \$ |7 q* b6 f1 \6 Qset j; [ z& M- E) X0 k% r9 l
( j + 1)
# O* `, b7 a6 t8 u+ P0 r; c6 d]( i* j4 P" N7 k& ~# ^
let k 3
* m; {6 j7 }& @$ a" E3 {5 Z$ W9 q* ulet power 0 V) o. T: A+ S# a2 c( ]' \
let local 0+ H, F, n0 b0 m/ N$ \* a
while [k <[trade-record-one-len] of myself]
: y8 V, }3 f4 f% Z5 z[, ~2 y: p9 A$ B N# l
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)
+ e7 E* `& A/ }set k (k + 1)
, u; o' {) H8 F# f' v; S]4 |& {' C" V# f+ z0 H) s
set [local-reputation] of myself (local)5 H( o$ X! C2 B$ ~1 T
end
! q7 p0 D8 M. ^ a
8 U' K- w5 Y2 {$ I1 gto update-neighbor-total
; R- u. A' [' K! |6 F% h3 q. B1 k7 P6 }: t2 |. F2 |8 I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ V; W( b/ F" `; B3 M0 A# I" ~+ x. G" B
0 F4 y! `6 s) e9 L1 Eend
/ B8 m. t |" D- U. n ~
1 X$ y, h% c/ s9 d3 h& w( zto update-credibility-ijl
* G, h7 i& Y1 w* n2 M
9 C; `7 c7 y0 g;;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 m. U) F) Y0 d- d, ]2 X2 tlet l 0) C! g# y0 j6 Y" V- e5 [& H1 G
while[ l < people ]
/ v1 r4 T% O1 I;;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 v1 F- @ J# s
[" h1 X( ^' `6 }+ k! \3 `
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 p# u p* t5 l' U; ], |
if (trade-record-one-j-l-len > 3)
% \) f7 F1 N; A" t6 f[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 t3 I/ f ~ Q) k0 I1 M5 Blet i 3* ?" c$ E& ?( a0 q7 |4 L
let sum-time 0
$ ~/ f1 M2 O: K4 i9 n* c/ Bwhile[i < trade-record-one-len]
4 S! ^% ^- z$ u0 n- w& H[) s |7 w6 n* {8 Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 N3 d1 S4 u! I, K( b5 W* c, l
set i" o3 s- w$ u. t1 d; i P8 t% u/ |
( i + 1)
) N! ]" ?- F2 O0 a' x]- \3 _- h b$ O$ l; F
let credibility-i-j-l 0
: z* b' z$ Z _' i( e; ?;;i评价(j对jl的评价)
; Q, t' h6 i& k, zlet j 3
) i+ k- O: t* B2 F& h* Clet k 48 V# I# U9 W& u* d4 {
while[j < trade-record-one-len]
- J% V! F: |/ U: V8 x0 U! Y5 y, k[* ^* p; `) c0 d# R2 N* U3 V5 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0 J0 a. e7 r6 z6 o6 x
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), t3 @1 r/ {2 ]( N, E
set j$ J, A; [) R1 x5 p" m& K, ]
( j + 1): W* u6 r$ `/ c) B
]/ S. o! ?; g$ m# z& c! E
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 ))
% ^. l \5 ]: h2 [& L& a1 v9 e$ M+ I% V! N2 P$ ^
+ Z. F$ h4 C3 D, S
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 \5 c; m3 X+ }4 l8 y+ Z$ g0 L D( w;;及时更新i对l的评价质量的评价1 J% r N. }% _- L( t K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: c* d2 ]4 i3 `* g7 K8 Nset l (l + 1)/ j- U6 Z- G, A/ y) W1 z
]
+ Q6 L P; a. Y) ]% E' r: l: g, zend
' {6 X6 W2 S+ h) ]0 k' E/ ^2 c3 u# g) m% y) j) T- n) q
to update-credibility-list8 s% o3 O" Z" C- s N/ h9 F
let i 0
8 _2 S/ |, j4 X ~* j, H0 Ywhile[i < people]( L& c2 ]" S) n* t1 y8 F& N r; }
[: e0 b* H( F0 u# ^
let j 0
# R. }9 j9 R4 @% O: K! O# k( Glet note 0( i" j( j) T5 S" H8 M$ V+ t
let k 0, P- g& T4 O) o! D" f- ?0 L
;;计作出过评价的邻居节点的数目4 V2 Z- X1 f. t1 u
while[j < people]
, O3 F" F; v; A# f[, A( {! @* Q) m+ l6 E+ M
if (item j( [credibility] of turtle (i + 1)) != -1)
6 D/ F# M6 m F d# a' @) w;;判断是否给本turtle的评价质量做出过评价的节点
3 `" s+ I$ p& P8 ]2 r6 Y N[set note (note + item j ([credibility]of turtle (i + 1)))
2 I7 k5 m2 [8 ?8 T3 ^" v;;*(exp (-(people - 2)))/(people - 2))]
3 X% }7 y4 w1 N! h' z! F& Uset k (k + 1)
) w2 I- `. |; t1 O]+ o* g3 F7 b$ a& L# q
set j (j + 1)
0 i( J% M2 j/ a: @2 V& ]% v]1 p. T/ Y& M% B2 n' s
set note (note *(exp (- (1 / k)))/ k)& U2 {* }) r7 l% J7 z
set credibility-list (replace-item i credibility-list note)
* E. \- X7 q: C, z: fset i (i + 1)$ F4 m/ t' {: D/ u9 v* n. c- x
]
% A/ [% l1 X/ e3 O- ] K8 Eend1 Q7 [7 w6 f5 f1 l4 d
4 }% i; Z! H' i) u; l+ o
to update-global-reputation-list7 \, S ^1 g. h4 q8 u
let j 0
3 [( a' m5 L3 X# nwhile[j < people]
" {/ [4 A9 x8 a$ f# f- ?& g$ u& A3 V[. I5 A2 K. u( j- l3 w8 A
let new 0- g* m/ c/ K" A
;;暂存新的一个全局声誉
" l1 z( ~* Y$ V0 C5 z1 y. r* B' r9 Alet i 04 S P0 N9 [9 A5 K8 Y/ L* y# w$ t1 w8 C
let sum-money 0
8 a# M# ], p; p. Z! ^5 @2 t. ]let credibility-money 0& I0 v/ S+ T2 m1 |1 l C
while [i < people]
: |8 D# \6 ]4 o R[, a2 Q& f- p D r/ G% \# Q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 g6 ~7 Z0 T5 }& T0 v7 |9 W! M0 Aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): X5 y/ N z: D# A
set i (i + 1)' P$ ~( R3 e: K
] K- S: o$ i2 P. \$ j7 ?- d
let k 0
1 `4 U# d( _, r$ F; |4 W( ~let new1 0
. D0 Z% l5 ]9 ^; S' M$ H5 hwhile [k < people]
$ n" R% B' O0 ]7 ^8 p[( d* M- W% Y1 z( G8 d4 Q9 a/ B) E
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)( r. H5 S0 p7 P& z1 b6 g% g
set k (k + 1)
; Z* c' F5 u) y8 c& q, x) K; k]% f3 X5 g8 o. i
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 m/ z: ], H; h: h* T9 O' k5 _set global-reputation-list (replace-item j global-reputation-list new): }$ v/ @. c+ [: o; X9 f
set j (j + 1)
. t" \1 d" e- d/ U]( |( V* N$ P6 G
end
1 C: A3 f$ Q$ k+ b* y2 ~3 U& d$ k; m; w. I: y
& h V; o0 k/ n5 _3 d" W* J6 T$ o
to get-color
) }/ P. i5 @% S) y1 Y/ b) ?; w8 n( K7 Y& O/ u$ S1 o9 F G* R
set color blue
% E" U8 I- k! c+ {end
0 [- Z0 N! G" E+ n& t& M
# Q3 ?* F0 }; h- mto poll-class* j0 D8 i2 R T# v0 f4 z6 b
end
8 n4 f# ~- x8 u6 z& ?" h- ], Q
H9 Y, B+ R# d8 uto setup-plot1
( [" H6 e3 ~/ [6 W8 y, ^9 d8 [5 H
( ?* S2 K" Q" b0 @* ]8 @ xset-current-plot "Trends-of-Local-reputation"
0 h: ^& E: e, E, v9 `7 i& k; m" `; ?, R# }4 s( F+ x
set-plot-x-range 0 xmax
3 p( L J0 |$ Y! p1 [7 D, K
0 Y6 l- n9 t; x+ ]6 zset-plot-y-range 0.0 ymax8 w( m! F- H# N; h* d$ A
end! u+ `5 x! X! L; d6 t
; I# J0 v# c4 Q2 v8 P4 J2 h# G
to setup-plot2$ V; ?) i, v/ X) ^& Q" k n- y5 m. ^
/ j! s' X. |( K0 p- V3 Pset-current-plot "Trends-of-global-reputation"
) T8 T9 a# B2 }' M3 t
! T4 w7 P( X; [" f S+ qset-plot-x-range 0 xmax9 E& ^2 _2 ^3 y" [
% x9 o, Q- v$ a, |& _
set-plot-y-range 0.0 ymax
0 h+ t/ Y( Q$ |" B& Y5 M7 eend2 Z% K6 I9 E7 f( O
0 o/ g+ r& a! P: k0 ~- u
to setup-plot3
6 C# n) A/ M- A" M8 C4 O/ f4 j) s' T2 g5 _; v0 l3 ~
set-current-plot "Trends-of-credibility"
; R" |1 `, t9 d5 X/ u B3 J7 R
4 i& h) a+ r" r7 F/ Rset-plot-x-range 0 xmax
) h) m& A5 H- S* ] D( m' y0 v' J* |* D: I
set-plot-y-range 0.0 ymax
# m& a! X% x. w! O/ mend, S. {2 [9 d' t+ l
: M( M2 s3 j; ]$ V1 u$ }0 uto do-plots' ? j# x9 |# g5 [
set-current-plot "Trends-of-Local-reputation"
, ~5 L1 H; P$ U/ n7 l( tset-current-plot-pen "Honest service"
+ N( A, @$ Z, L5 p ~/ U5 send- z- z9 W' U, q- E/ X O
) h" K# D a. h; 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
|