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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& e0 ^ q* k5 @! B- Y4 z
globals[
v7 b+ i' h8 P+ x) L% ~xmax
0 B l3 V; j8 m9 ]: M0 W6 P# X4 Uymax
* Y) }/ g G3 \# ^0 D$ _7 Kglobal-reputation-list
$ g9 k& X! {" G# w
( \& f5 ~6 U; ]+ `5 X0 o0 z;;每一个turtle的全局声誉都存在此LIST中$ ~0 P( Q% r4 z5 P8 G3 E
credibility-list' i+ G$ b' h, |. k( T# a
;;每一个turtle的评价可信度
0 ~0 e9 E4 @7 c; Ohonest-service
8 e4 p* E5 t1 W. K1 |unhonest-service# R7 v. B* g7 P. v! H4 N
oscillation
3 @' C8 K9 O# O: V. Qrand-dynamic' v' ?( t# @" y: P7 c1 v
]
4 c3 u8 O& ~4 m }+ t" f4 ]% b3 D; `8 m8 e3 x' L% |/ ?
turtles-own[
& [/ l9 \2 t. O9 o5 G( Ctrade-record-all6 Y/ ]* \$ w7 L
;;a list of lists,由trade-record-one组成, m( V9 {# R$ P& O
trade-record-one
8 c, v2 K+ y" F1 @3 {, s. V;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 y J% [0 k. u3 X# F( L" p. {6 c' _# F& J1 {/ }: M6 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]]1 W. }- r7 d+ [1 `. Z) R! Q0 ]
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]
. V) \9 T8 o3 y+ n2 g2 ]4 ocredibility-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. g9 S1 y# o p/ [' x+ H3 B
neighbor-total
- y) o" _+ k9 A6 [$ {. J! x;;记录该turtle的邻居节点的数目
! t& K) f& Z4 g/ v' Wtrade-time- a4 }$ B: J1 c, F C. d% f8 J
;;当前发生交易的turtle的交易时间& Q/ }5 w5 L9 Z" Z( k) y1 x
appraise-give- Q$ O) i$ ?% P5 M2 l& x0 U' O! @" Z
;;当前发生交易时给出的评价: R9 m5 ?4 b1 c6 f5 V
appraise-receive7 t# \" J5 z4 j/ o' @
;;当前发生交易时收到的评价. w& Q3 J: X, r
appraise-time
* |( T& W5 k+ v$ N3 }+ z5 Y;;当前发生交易时的评价时间' s+ @. D& z# N6 j" w+ C9 a
local-reputation-now;;此次交易后相对于对方turtle的局部声誉% y0 e7 }- K3 [
trade-times-total7 F4 u; N9 i* Z$ l
;;与当前turtle的交易总次数# i- O' }" c0 g& R
trade-money-total. E& V% w) P6 i
;;与当前turtle的交易总金额: o, h. `4 f6 |- |
local-reputation
3 X! j& [5 ]/ G; N8 I0 ^ ~7 y! ]global-reputation
/ L t/ Q% h) W0 d9 ?; g7 E: Pcredibility
/ Y% M# L4 D/ n% Y& h* @! E;;评价可信度,每次交易后都需要更新 ^7 ^4 b6 N, s/ ]
credibility-all
2 l% H4 O. J; F3 X;;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
! W2 l9 f0 S; O3 {& K
$ i. g5 @. i- }0 B) c! d;;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
. R5 Z' m# t, Z& scredibility-one, z$ M; n5 }7 c. Q- x
;;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! q3 _- d S3 m, w# E6 m$ D+ K
global-proportion! T2 b3 Q$ p( `+ { q3 }5 d
customer$ Q5 k9 Y( q( P% c( o
customer-no4 z7 K# v3 F; B; D+ o4 a7 x
trust-ok4 [1 O) L2 K( p* ?
trade-record-one-len;;trade-record-one的长度& W+ W' w8 F4 X" `) I
]
, q1 b; q# w8 \, S) g! d+ m7 r: S$ ~
5 y1 J a( T# B+ S% @& C;;setup procedure
2 C% R0 M. l( Q. Q( Q4 t% P2 i2 l5 z% P
to setup) M0 I$ }- x& n5 Q+ B; c: _2 v
% O( `0 o5 S+ T. U3 i6 M9 qca
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initialize-settings7 i' i( Z* t2 _, B' Z( L% I& y
+ u) t+ I+ k& Q- H4 D( a3 s9 R8 pcrt people [setup-turtles]0 T6 y, E: G* W6 h9 e2 a$ X
% K- q) Z' R! H7 |$ ^reset-timer
( ^4 [; L, f& s; u* P
4 I# P2 S1 K- W' Zpoll-class
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setup-plots9 }. O* A3 _( s; p) H
& d1 m! G% A3 F9 k! z( E0 `% j+ Zdo-plots" K( M2 `6 R, o% E' |1 E# L
end2 C% j* O. b: H) } v+ g( U3 k
$ |- E) i: y5 H/ q1 x* R% ~
to initialize-settings" C4 l w8 e7 W: u- B3 O
0 e8 k9 q" V6 E' Uset global-reputation-list []5 b5 I: U1 y- d7 X
0 @! R, e1 c6 h3 c( `) d7 Qset credibility-list n-values people [0.5]4 x3 @5 `" Y8 q$ V \
8 n2 `4 R" ^) [- k7 ]" Q9 `4 c, ^
set honest-service 0
3 u& g# W) Z# _1 K: L: O; t, Y, f) c: A0 c# O; J) L
set unhonest-service 0
h( a; o- A* }- D, h0 s. P+ d' Q" [- |% }+ k: e# i( I( Q b
set oscillation 0
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set rand-dynamic 0
4 Z$ _+ ]1 b8 h0 N( k* y: Send8 Q/ W- i7 u2 o% P! h
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to setup-turtles
5 _2 ?) m6 a. ]) t2 a iset shape "person" w- n* U3 _/ E# ], h( `4 y
setxy random-xcor random-ycor
+ p% f1 Q/ @4 p0 `set trade-record-one []: Q5 l: b) j4 q6 i3 U8 T
$ Z- P; p: W b& zset trade-record-all n-values people [(list (? + 1) 0 0)]
1 D( L6 O% ?( _0 Z( ~, L( Q
0 N' Q4 } c. ?3 M' U+ G4 qset trade-record-current []
0 ?( S! g( c' |) `set credibility-receive []
) W. Y& I7 e* B1 Sset local-reputation 0.5
0 \, }% n- u1 p+ D8 Rset neighbor-total 0# @2 o7 y3 }8 {9 x$ E8 F
set trade-times-total 0
+ g2 I( ^4 o2 D0 b6 Hset trade-money-total 0
, J2 t: ^" F0 W4 v: bset customer nobody. U8 Y, l+ Y/ G. U1 `: l6 u6 s
set credibility-all n-values people [creat-credibility]
; @2 [8 O7 U$ b% cset credibility n-values people [-1]1 L; s: x; M) J; Y7 {
get-color) ~$ q! l/ l" ]
8 I0 V+ p+ E9 O0 @
end8 ~; Z5 r& n5 \0 } [2 q3 T
i6 A9 b# O- i$ {9 { s
to-report creat-credibility7 a! z/ ]/ ?0 h
report n-values people [0.5]
, q9 H/ i! U; U1 M3 W0 gend
* @2 ]) B2 j. c8 H% H0 U
7 G- S8 ?8 z, B( K: dto setup-plots u$ L- n" F! ^8 b3 O* H
7 P+ g$ f& U$ U/ _4 d
set xmax 30
. i) t" b5 W+ o/ L' j c" w7 I; t/ U9 X) L4 u5 A1 ?, g# V9 i
set ymax 1.03 ^" G8 Q, ~$ D6 F1 P. d% [* E
* T9 j [% U, o# Lclear-all-plots
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setup-plot16 Q6 z+ Z; K+ c! x9 {1 x
2 @& T7 Y% r. j! Hsetup-plot2
/ y" x" h5 k q% h- m
+ J# M; V W5 y# P7 [3 Psetup-plot3
) I. C, G5 y4 C/ `3 ]$ |, Q: gend
5 _4 i1 w. {0 A9 s- K" {; i. w7 e
;;run time procedures9 }! Y1 n# X2 t8 V v
2 W. w' q" @( q6 o: o9 Sto go
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ask turtles [do-business]
_+ v0 o6 e: K' k8 Xend
1 g3 O8 v9 r. ^$ |5 ^# S9 N% @5 J& }
& z2 E# L( F$ L$ x3 k% f; zto do-business ' V6 P: e7 n+ M' N( [+ ^: G
% ]3 o6 ~% o$ u& @
( a I! }1 a- art random 360, \7 H5 ]6 @- m! s8 w \
1 T0 w0 T; `; u; E: k" bfd 10 S& a/ b. g8 a# P" u, o. |' V
+ S" w! j) i( q$ Pifelse(other turtles-here != nobody)[6 E& i; S6 [" I; g7 A+ L: u- n
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set customer one-of other turtles-here
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;; set [customer] of customer myself
m0 D; y. P; Q1 O8 a9 s/ g- n$ h
, e E* I5 t* b6 R Lset [trade-record-one] of self item (([who] of customer) - 1)# e V2 H: B: y* r
[trade-record-all]of self
4 u& I& G$ O: w3 t' N: A;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( V y: o" l7 Z! i4 t& i0 w# j$ y/ M8 M5 g5 z
set [trade-record-one] of customer item (([who] of self) - 1)
, A8 W. d8 g8 q" E[trade-record-all]of customer& @2 C, M$ P+ V- l
4 f; X! q, K6 A
set [trade-record-one-len] of self length [trade-record-one] of self
* g% P0 W7 m( [$ ?; z8 k: @ O, O% [6 Y5 U, n
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
, z2 G1 k6 ^" A/ p;;先求i对j的信任度
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if ([trust-ok] of self)
: n+ X& J; A% |6 T% P$ m; N;;根据i对j的信任度来决定是否与j进行交易[
8 y! b9 t0 S8 Y1 n1 p0 xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 R/ Y( E/ ^3 P: J1 _3 s1 K) |
4 G A5 u& u5 q. V* V$ n; G, B5 Y U
[' Z( `, N4 u5 a9 q$ \- R- \* L
5 h# J/ \7 i5 ?% qdo-trade
( Q1 r' J* d/ ^8 R/ E9 n0 Y/ T8 s+ o2 D. i# Z
update-credibility-ijl! x% o$ q! R" z; d
9 ]0 s, U7 }9 W% Kupdate-credibility-list; K! \9 X9 H( I
0 d% h0 |4 L$ k: }
6 k7 { O5 b+ L% U8 |
update-global-reputation-list
" Q4 H# A# Q; @, d
1 I3 r M% D; Gpoll-class) t+ [! Z) [( O2 U
2 l& j) i+ I6 S
get-color
- w R# t8 q& d9 u0 O3 h& w' A8 \, `+ k' A3 d' R
]]$ y2 {9 x, f4 X4 a6 s0 |
$ G* B5 C/ b2 J;;如果所得的信任度满足条件,则进行交易8 u- u, {$ b0 Z9 m& _
/ [2 a% F' N: v5 A# K
[, l8 l; _/ e' g0 z4 W1 k, P
2 b7 d& a) g8 A' Z0 Drt random 3600 n/ z0 x% V/ Y( q5 q
0 d1 v# k! x6 c" w/ J3 E1 ]
fd 1
* L& U- l7 P+ M. j4 \2 Z. U5 i! i/ j: |3 P! T: @
]
3 K$ }7 G7 g# c# d% p* I& V. k" A: K( V- _
end4 c1 d ^6 q% ^9 |6 C7 L* ^. v6 N
; N( n# H- z- O- d
to do-trust
c6 |" u1 @. }set trust-ok False" A( h _. D4 g, Q5 d6 _" m1 d* H
' e7 `; w$ R$ t* [7 [2 P
w D. a5 h: ^7 r" z) V( llet max-trade-times 0
T" K: x% B& s- N" D. ]7 bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& V# ]4 B: \0 M9 i) l" X% L
let max-trade-money 0
# m7 a& h) w* U% X" L+ tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 h0 D6 o' V/ j: 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))- D1 ~3 F2 y, m9 F
) S7 b8 p" x1 |0 l0 t) `7 D$ |' a( }) V" \; o$ D+ F' W1 l# z
get-global-proportion2 M5 Y! ?& F$ Z0 f: o5 S& s" I# k
let trust-value+ V* Z4 }# L* A: N
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)
/ F; j1 I8 p Y6 {if(trust-value > trade-trust-value)
! _6 }; h2 D& A[set trust-ok true]
2 [0 l: N0 C$ lend
5 R) I! j# e7 ]6 M7 ^! g+ |; }
& l, D+ \/ D0 t5 M9 Z6 wto get-global-proportion6 ?" X' k/ _1 l9 {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 l6 k# \& I: q9 g[set global-proportion 0]2 `* A9 |9 U( C# L9 J/ H/ C7 a
[let i 0+ _: o) `# T* M1 ~8 f
let sum-money 0- p9 k7 q! V3 |7 A
while[ i < people]( L! v3 o7 a# i9 E
[" N1 t8 B B% i
if( length (item i, z4 h4 M3 f3 r5 w- Z( z+ f( x" ?$ K
[trade-record-all] of customer) > 3 )
+ c+ T# ?+ S7 y T6 i[
% @8 {' ~! l5 E/ k$ s! n3 o; x0 X' R8 Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 C F% v/ D i% {- n# E
]
6 f! @/ r; Z6 U! F* x) ~]
' V5 q; ?7 y( y8 W, b) jlet j 0/ O7 b, u: j! D. G M; _6 Q
let note 0* m* [( L9 H/ f/ r; e; B9 e
while[ j < people]
# _) j+ O/ ?. R& @- `' J8 b* ~( n[
* m' h0 g% x1 T" V% g5 X* o5 N. Mif( length (item i" G' z H0 i6 m0 r. ?4 K
[trade-record-all] of customer) > 3 )
& Z* @3 `( [$ q `3 z/ m[
0 _ n; `3 V3 l( e' n7 f$ eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" s# V& }6 J' z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* v, X2 U8 Y' h/ Z. d! D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) r0 m' ?3 m. O9 o4 y- |
]
7 _7 M6 S1 ^) m1 m. B; \5 A! ~]( l! [; U3 l8 u- c+ k: {
set global-proportion note3 G1 v+ a8 c: V0 _3 Z' @) \
]
F5 Z- u) m& Y! c7 Q$ T Rend
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- t' Y6 r" L5 `: J( K- r8 cto do-trade
/ m9 P2 a6 }, c: ?. ~. y# b2 a9 D% }; };;这个过程实际上是给双方作出评价的过程
% O" o6 d' i( o, @. c: vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" v1 o4 o R9 U$ q* R- O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% ^5 ~ o* O/ Z: J" N) x2 s7 eset trade-record-current lput(timer) trade-record-current/ @, |4 X% o4 n( h" A& P: j& W* \
;;评价时间, ^$ {$ H+ p* d- t, c
ask myself [
D& \! k# ]; ? o# H2 l, \1 aupdate-local-reputation
2 i8 }; u& j$ ~9 D/ p2 Iset trade-record-current lput([local-reputation] of myself) trade-record-current
/ G, [0 a2 ?( B' H" v* c0 c; F) D]5 o$ V3 o) j3 U8 F8 `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; U! F( i, p: g. U7 g e2 q; D
;;将此次交易的记录加入到trade-record-one中
; N/ x) {& G8 w0 L' @ gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' n7 a; ~2 G) f. r5 f* u0 f Y
let note (item 2 trade-record-current )
' H" }/ q: @; y# y+ zset trade-record-current
+ H$ L- M' K% [3 ?0 U(replace-item 2 trade-record-current (item 3 trade-record-current))
4 h1 d2 N) r Fset trade-record-current. X8 m) P7 B# T) J+ J* p% H2 b v6 n2 J! M
(replace-item 3 trade-record-current note)/ u5 f( F# } z) q1 l. F
' p8 ]7 D. t8 l: Z& X
+ ]7 _, a; k. Aask customer [
% N$ B: p8 d8 a7 a2 _7 K9 iupdate-local-reputation
* S( B N0 V& H, }set trade-record-current C3 M( V. [. {$ A K' l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 ?( y# K+ m. g/ q& g3 g]4 f. F* O9 C/ s: h7 W- @' O
) p; ~+ }5 h' Y4 x; W% J3 V5 H* D3 j: n$ @4 V o& G
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( S" @0 b! w4 H; g _
+ f. T9 Y$ S. b# K9 b% }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. S. ~8 |* Q0 h3 P$ X;;将此次交易的记录加入到customer的trade-record-all中
% e! N. z; b1 x& Bend
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: `) X6 l0 l( h( q7 A9 I7 Cto update-local-reputation
6 `4 _* d6 j. A! r `set [trade-record-one-len] of myself length [trade-record-one] of myself
2 ~! i3 x6 E! i; T% `( S3 k" L5 h
1 W# A1 @* y) i9 ~
& |7 B; Q3 H/ X# W7 i;;if [trade-record-one-len] of myself > 3
* Y. W k* e$ f0 ^update-neighbor-total1 x9 A' n1 S! [; v1 e! B) _; o
;;更新邻居节点的数目,在此进行3 z# s' ~# w5 t; d" X+ N
let i 34 e2 K) i& H, F5 ]' Q- Y3 \
let sum-time 03 G2 d8 H" h( P. S) `
while[i < [trade-record-one-len] of myself]7 Q9 R5 Y, ^ a/ A! k8 z: c
[$ A9 _. ?, l0 e6 P' \
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ L9 e' e: j6 @9 W. Z7 a F
set i8 u. z- E- U$ b: y0 m) b
( i + 1)! c5 A) c6 J$ g! w' D9 ^
]
9 m" ~3 J. v* g9 g2 W( }6 ~+ olet j 3
* N0 v. I8 N9 m. hlet sum-money 07 h" M+ g, }; n9 _* ^* r; v
while[j < [trade-record-one-len] of myself]/ O2 g/ s- m4 U3 P2 X
[
) n0 k- d6 O! S0 L2 v) @ rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
/ w" U+ N( U" t% M2 p. ~, o; bset j
m( i0 P7 |7 |( P+ ^( j + 1)
, v) @5 F3 W& e9 D" p7 l* i]
& p) I. Q, X2 R& y. `" r& C, h/ d9 clet k 36 ^ |/ Z/ c( y
let power 0
0 a; u3 k ?$ h: G( p+ Z2 O8 c2 A9 [let local 0
3 v: y9 R! Y8 v9 D$ z$ }' U5 ywhile [k <[trade-record-one-len] of myself]4 G( O( Y* I; g# \
[
* G" h. W* {8 s2 j8 sset 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; y, o: p/ j8 ~
set k (k + 1)
4 V# ?' ^1 w% A2 N3 ?/ f& l v3 s]3 w6 u9 e1 I5 E6 p3 X& b
set [local-reputation] of myself (local)
[" M: j( v/ ?end
: \+ x3 i9 _4 B# k* G; a5 j4 V4 |' N$ |6 K3 b8 O5 f
to update-neighbor-total9 R) _2 V( G: A- w+ k* z
9 p% J, [( l: ^8 ?4 ~0 c* x$ m: I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ ^# d# _% a _
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& M! @4 `! V5 eend9 ~0 a) B- o% w+ t# Q9 ?
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to update-credibility-ijl
4 x# }$ ?( C+ W0 }9 L
6 [* X* n) O$ W$ O;;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。
5 w& ]( X0 q( D; A. G% Elet l 07 P$ H+ w2 O2 i* Z# t @5 ?
while[ l < people ]
, Y$ P. `1 m2 x: F0 V4 U: ];;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2 N) O. v# G9 V0 J+ G+ c/ [% r/ H
[
, _" ]" H I( G8 J3 ` Blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: v$ B+ E3 b! Hif (trade-record-one-j-l-len > 3)5 h5 Y @0 K6 c' B1 t. S1 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
, D, V1 r" A3 w& ?) i- o- Qlet i 3, u( I& A( ^1 d4 X+ Q" X+ Q
let sum-time 04 Y' R4 o8 H- s. E9 n. w X6 X/ s
while[i < trade-record-one-len]
! R) C+ w/ C R* Z[; w% l0 }5 S ?, }
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; G4 @. g' }% `; y! f' @set i
1 p% O7 E/ ^" Z, X& Z( i + 1)
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1 i9 L p, h' k1 H% Qlet credibility-i-j-l 0
6 d0 e9 H- b. c# f" w7 x8 M8 M;;i评价(j对jl的评价)
$ u' f7 f4 |) g/ `7 _- o3 Zlet j 36 b4 b& Y: _; `' Q6 a2 P$ z
let k 4
; h' o9 J# h/ V1 Twhile[j < trade-record-one-len], _" F: z" o- w2 Z; ~- C5 `5 J
[
- z; K4 t7 }8 V' o5 w8 [# }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2 W& ^, j; H' \( T( f
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)
5 z2 X5 X# R7 O# fset j
$ D! r! P0 V% _1 W6 H( j + 1)* T1 y! M: y# O l
]0 w6 [% m' }' ^. t/ C! W! o- |4 \& 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 ))
4 q: [) d# K* \+ F- b
, f& ~8 F+ I" ^+ S2 d
* A/ N& Y, h" qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ H) k0 z0 N. e9 x, i' S$ O;;及时更新i对l的评价质量的评价
/ V$ R) V5 s+ B: U: X7 g) e# ~set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# ]3 k7 Q. L/ B6 n# `set l (l + 1)
9 X' R+ I0 f6 d& u' T]
! ?+ `* [ s# y% M6 q$ `end
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/ w9 u5 n3 M) w4 Vto update-credibility-list/ p$ r* f7 c1 t7 I- k
let i 0* Z4 H X* e. t
while[i < people]
) W! L% q [: J5 Q[
9 s! r6 @1 V* c5 {, ylet j 0
# ~0 |3 _; B! p8 y; Flet note 0
4 E* }" `8 y6 z: E5 e2 glet k 0
5 i" y: p6 ?. e( U4 M) Y# t, w;;计作出过评价的邻居节点的数目
! Q0 {$ l- ?' ^% _) H ewhile[j < people]9 }4 Q9 g `5 l. J
[8 w" S1 O: I( o* i- g1 H& \2 [" U( v
if (item j( [credibility] of turtle (i + 1)) != -1)
5 Q( K" S: v8 D;;判断是否给本turtle的评价质量做出过评价的节点) b8 \/ x( G& w4 c0 w
[set note (note + item j ([credibility]of turtle (i + 1)))9 `9 \9 i/ l1 [6 d1 p+ a. I
;;*(exp (-(people - 2)))/(people - 2))]! ~3 B% O" G4 @; i9 f
set k (k + 1)
8 U4 u1 F! g x; \5 T] y/ J B/ c/ u6 @' ?
set j (j + 1)
; o; L; |4 O' g: h/ L" c" z% E]
, r: X n) Q+ Z7 I3 [' y: Z Z# O) Lset note (note *(exp (- (1 / k)))/ k)) L |) w G' p/ c
set credibility-list (replace-item i credibility-list note)
7 Q1 ^" X2 o! _0 N4 T+ B' wset i (i + 1)% t- ^' f+ w0 L3 G& S" s
]% t; i6 _& P# q7 d( b7 M" o
end
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to update-global-reputation-list0 {% C! I. h( P) l/ M1 r( D/ O
let j 0: K9 o* [) I+ O1 y4 }) J s
while[j < people]
' V {$ {8 V/ j, ?/ J[
3 W, p/ t& O# Z- M3 E5 h* ?let new 0- v3 F# m) Q; S- v0 j* A' ?
;;暂存新的一个全局声誉) X: _! l+ Q8 I) B( }8 h
let i 0
$ @# E# R, {2 D# p+ [5 Plet sum-money 0* U) B0 h6 Z8 S* G3 }4 s
let credibility-money 0
0 e; z4 p/ `0 ]while [i < people]& A+ ~4 l. z6 h" O7 ^" K
[, y/ G5 p6 l& Y7 L! }7 [
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 l+ o6 {( a% Z: |) L% b
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& S- D- a0 O7 b" n
set i (i + 1)* v$ W- h; y/ ?3 F+ E; A* c
]4 |8 w v3 r. \2 T+ F0 B, f
let k 0
% f9 w; i9 S( C s! u9 Ulet new1 0
y1 m9 M m) Y) ]while [k < people]
( H8 ^; b% _1 U6 Y8 k[) |) \3 S7 ?0 J. K4 K
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)
6 F/ W3 a) `* U! ?3 N$ w6 }set k (k + 1)2 X1 [' M7 k3 [" B, o
] i `7 G, K% G$ }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) U' o' D V: ^8 i# H
set global-reputation-list (replace-item j global-reputation-list new)
) E" d- c4 i% \7 z' Sset j (j + 1)
5 T/ c+ U7 N/ A1 L0 g]+ P2 v8 n. @1 K* l6 n9 {) V
end( e/ r x8 b) I# Z& X9 u5 v
5 Z Z! n& h7 a
6 ]5 u! k$ N( R3 ^7 C% d
2 [8 A! l0 q+ B& w; o+ \* y Cto get-color Y2 v% }6 R7 @6 _) z& L
6 R6 a+ ^5 m6 d! t$ C( U: fset color blue$ f' Z& m! l. u( ]! S: F: C3 b" h
end
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to poll-class
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( Z9 W& x$ O$ d f% W L' c
to setup-plot1
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/ I. h; v$ e9 Fset-current-plot "Trends-of-Local-reputation"* V ]* p* L- X( v& [ e9 v/ a
5 P: {8 }4 S8 A; I" a) o, i0 ]
set-plot-x-range 0 xmax1 ?" \# T3 m7 f! r0 J. t
) i5 p( L# a/ a6 z ?. u
set-plot-y-range 0.0 ymax
8 Z( t% p6 t. ]4 b4 Zend* `) v2 H- J! N0 Q6 m- l6 O# g* j
0 \+ g# F" W8 O% [% B6 ]3 P3 g/ Mto setup-plot2; _) i0 {3 c& J( V3 o o3 H' v
& z' m, }$ u9 ~. X8 f4 W/ v6 ~0 ]
set-current-plot "Trends-of-global-reputation"
4 a1 k& E* H; s8 @' W9 V+ u8 @/ w1 m
set-plot-x-range 0 xmax+ R0 O5 l# b, m1 A7 F9 @
* K& W( u5 W+ ^6 _set-plot-y-range 0.0 ymax) ]6 u* k; _% e9 u2 U( N9 ?
end7 p' p2 p5 w Z5 `' Q
, k& j0 |4 J: L: y( c4 S# C, d
to setup-plot3* ?5 x. D2 U+ l0 Y
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set-current-plot "Trends-of-credibility"
/ j& u# r7 O6 p$ e
/ K ^2 Z7 e1 d5 Wset-plot-x-range 0 xmax+ l6 u1 a$ d4 z1 N0 ]
, @# J' j8 j1 ]& | G
set-plot-y-range 0.0 ymax
0 C; J& n+ I& |7 i- J) \, Q& Y6 o* lend
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to do-plots
9 @0 w; i8 w9 L5 [2 Sset-current-plot "Trends-of-Local-reputation"
) g+ w" X* \ N( e0 ~+ e8 F" Y9 W4 }set-current-plot-pen "Honest service"
! ~2 S9 }1 i% `; {8 rend
8 q' k( i" Q9 s1 a9 l- u+ k
% i" A2 N6 z7 | D; U {[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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