|
|

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- t' @3 i( D! J5 h; t4 X
globals[5 ]& x1 d$ w3 ~4 m* v5 z- t g
xmax9 {+ Y8 ^0 b% n/ j
ymax( ]+ w9 g2 Y1 \6 f( Z" O
global-reputation-list
& Q2 C( U+ W5 i- ]
' E1 N2 j5 A1 Y9 J! \& c: Z;;每一个turtle的全局声誉都存在此LIST中
$ ~$ ~4 b. h1 V$ Y" U" V% M7 }credibility-list
J! K8 h% _( t;;每一个turtle的评价可信度
- |! ?1 r/ P; _ ghonest-service
+ A) T' D) u, S" S- J2 g1 nunhonest-service: `) z) _- H$ h4 d; {
oscillation
% D( t+ v' R! I; w3 Urand-dynamic3 c1 {/ h4 G/ q9 E: z
]' ^$ [7 T* ^7 w$ e0 ?1 A. r
- ?+ z5 }. o- R/ s1 p# Lturtles-own[
+ r! J" \& z* \! qtrade-record-all
" i; v9 r6 d( r K5 S; O7 y;;a list of lists,由trade-record-one组成
) Q9 f$ T7 p5 D2 ~trade-record-one
6 B% ?0 i, }& U4 g% {& B5 d+ 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% [% v' |* z V% l
$ `5 n# y4 d Z' ]5 Z
;;[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]] S. z4 _; D ]+ E3 t) t8 P
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 D$ ?; v7 \$ L! ?0 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list
* F1 Y6 [. z8 N! x$ z& {neighbor-total+ l0 Y8 v9 A/ M; y* r$ A
;;记录该turtle的邻居节点的数目
1 A8 P+ P* S7 K) S! Vtrade-time) \7 C. J3 x$ \ h" o4 Q) J8 B
;;当前发生交易的turtle的交易时间( d: i- Q. i) V. P0 o
appraise-give! r d9 }$ w( H$ z( O4 Y8 B: X+ G
;;当前发生交易时给出的评价! H- t3 s* T9 G' w9 B& G6 f
appraise-receive
X- s! K! {" `4 D6 E1 O" l+ X3 ^;;当前发生交易时收到的评价
9 W% u3 u7 ]+ J" m1 w, r! t- mappraise-time
K1 S' G- V2 Y+ s( i;;当前发生交易时的评价时间
* A, K3 `- c% ~2 I" {1 a3 G# {& [local-reputation-now;;此次交易后相对于对方turtle的局部声誉" F0 M, z: t6 J; a" y; c
trade-times-total
. `$ d/ I: x0 `;;与当前turtle的交易总次数6 f- A; _4 v, k( ?( v6 Y
trade-money-total5 k* Y* Y/ p- A+ w/ Z* z; }
;;与当前turtle的交易总金额* b! A5 c- p: r* L
local-reputation
+ A- S& W' K( dglobal-reputation
! j- c/ H& j& h) Tcredibility# V; e! l9 r2 b# D) p
;;评价可信度,每次交易后都需要更新
% ^' c" h P% j. Wcredibility-all+ M4 l0 |6 S6 p- O2 f2 _
;;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
( v' ~6 W+ N1 |' s+ m. Q0 y- r5 U7 d; @4 u
( b. _' h; _. |2 t+ |5 b! 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% s: f e6 b& r4 c* t
credibility-one
: p( o' Z4 {+ P1 K$ h1 \& |;;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
+ \2 t1 }5 `' g4 K- k# m ?global-proportion
/ ]" |+ \& } x1 w" T; l+ ucustomer* K) s3 H8 ~3 r$ O" t) H6 {
customer-no9 t1 w6 Q- p/ ? `, N
trust-ok* O0 ^% t+ A% p7 H
trade-record-one-len;;trade-record-one的长度 F7 F0 }: r( y: G0 R1 Y
]3 d, J6 S& q" o3 O" Z% M
% v& V( ?. N% _* a8 c0 ^" V- ?
;;setup procedure
) c0 I! r7 Q- M$ @
7 F) [/ q! W L0 q! kto setup
2 ^# z' S# R; N) l+ F. l+ x* S9 R! j: A# w1 Q Y. u
ca6 |' ^8 I$ G, u4 f, j; n* I, O
( @- E$ Z1 a$ ^8 W4 q' v9 ?
initialize-settings& p/ F8 F# \+ @# S
6 t# C' Y, n8 F6 \) s
crt people [setup-turtles]
3 W" j- b$ c J7 b9 O) r7 s' i; |
3 N) ~" \' M+ m$ Vreset-timer
5 W) B/ j; N& A% a: [: r& k3 {2 m/ s
poll-class- Q0 b4 y* [- ~4 D W* v+ A
+ [+ t2 P' O$ i1 n1 L
setup-plots0 w1 E( ~* x8 q! h/ }. @1 j
" B" C1 X3 U& @5 |. Xdo-plots
4 K- J$ M( r! f* s% v$ H! wend
. R- v7 N, { ~! f- _2 O; K
; E# _5 m7 r' C1 Y! B8 Wto initialize-settings1 g' J$ F4 a' U; `
6 u) S: P7 }* Z0 E) p/ ]/ R4 y
set global-reputation-list []
* k! K t; u: I) G
: C6 {& r% H# Uset credibility-list n-values people [0.5]2 U" u$ c* {" o9 H ~; Z" h* O
" O5 q, P7 G; v4 K$ R+ O1 G9 g) b' R
set honest-service 0
W, L* T( ?" C% B' M1 @& d9 N( }
set unhonest-service 0
4 k' D0 D% P! G3 S$ S e, ~7 A
$ J( h- \: V) w% ~2 Oset oscillation 0
7 h1 [# y/ W% L
7 H5 b! I# b6 x. e* O3 ` g+ i' p) u( Pset rand-dynamic 0" x( b8 |3 @) _
end
8 E& A' d% _7 o e3 A2 w5 L
+ B9 a( x! ~! j( qto setup-turtles
. g8 n2 M% l( T# Y2 O9 oset shape "person"
& c) \7 }$ |6 ~; Hsetxy random-xcor random-ycor
3 X" Q) M9 _) y: Sset trade-record-one []
7 I. J' m2 U) g6 O* D& z. a. E- |- b& _5 U
set trade-record-all n-values people [(list (? + 1) 0 0)]
( d& s: L1 f. A' J3 M: J+ M* W8 @0 W0 Z! s
set trade-record-current []
3 `* o0 M! u& J- F+ C% {set credibility-receive []* f/ z/ J7 D v A
set local-reputation 0.5: U9 ?: R k1 ^2 r" p/ k
set neighbor-total 0
g& V1 B4 A1 F$ rset trade-times-total 0
# u1 h1 [% z- Q$ |+ d8 ^# Y; yset trade-money-total 0! V. t8 V7 z) i; v L: I& W
set customer nobody$ o8 a% W: ^+ {/ ]4 E% B2 ~' q
set credibility-all n-values people [creat-credibility]5 i8 e* S' T* P1 V1 ]$ Z
set credibility n-values people [-1]
2 q+ n& m9 n9 c! I. C' j: z( |get-color; l& a% H8 B9 a% _# j
8 t) {' Y5 K+ aend
9 P; L/ }0 J7 T- O- v) ?; }/ a
% A) ~$ r0 P# F9 i9 a+ s" dto-report creat-credibility
6 z. t1 D, r% |# H& p" E9 Y5 X, hreport n-values people [0.5]9 M% B8 T8 A! D* A$ a6 W' G
end
$ Y0 z! l7 Q! r. v
# B& h6 t6 g4 h `1 X! R2 F: Ito setup-plots
$ G" g# \% ~5 [- S# _+ O/ K7 z3 t! J& u2 A
set xmax 30
* B( B6 H) A5 I9 ~3 H; e! G) s# ~7 w) S
1 [( a! W. h# w0 X7 Uset ymax 1.02 j. W, a; Y& \" a# [/ ~6 D+ h8 q9 Y
1 A- ^8 c- A c" m! Yclear-all-plots
1 R2 u' O4 K3 D- x7 ?6 g! Q2 Q
/ q/ p( s- j# a2 d' B* \setup-plot12 e0 \0 _( C" M- S+ L' \
$ ^! W1 G# C0 `) Z2 e# Ysetup-plot2
' J9 o) C7 W' x1 L" C
7 m" k" D* l; e: E3 xsetup-plot3
# O7 Y% v" @- B; I' s9 X) H, Kend/ X. k# v5 _! ^5 X/ l& f* J; N4 g0 B
$ W6 F+ y' C' W G$ |; l( t' J; a
;;run time procedures
0 O4 \- R# R0 y# I+ i3 ]8 E5 a" f- K! e# A
to go6 a3 g# p3 j- J& g2 z) `: E
# U8 A& J- s5 k d
ask turtles [do-business]3 m6 F1 Y0 I0 h, [$ i! R2 S1 \* Z
end; s. @+ Z! ]* ^1 i* q! k9 m; G
; `- T( W+ h. u$ kto do-business
3 z; f( L+ v D* [1 d* g" k. ], N2 h. Y- r
" i' i3 x% M4 Trt random 360
+ e' r& H$ b2 ~( m6 L
9 t# M3 t! H( Y( }2 T: R* a( cfd 1: c& i4 {5 _* k* v1 \ c+ L0 i
1 l* D: J w, E$ P8 e, Mifelse(other turtles-here != nobody)[
0 C% p. L: d6 i' Z$ U! c! x. M/ _( E; {3 D: D' D/ S
set customer one-of other turtles-here
7 W1 C' P8 |, B3 D) F6 f! K8 J
" e3 U' T6 c4 e2 q e& M: m0 ];; set [customer] of customer myself
( H8 M4 s- d l9 k4 t3 A/ e$ `; a' h0 t% j7 T! A
set [trade-record-one] of self item (([who] of customer) - 1)
% G8 }! v' W2 _[trade-record-all]of self" k3 g) Z" m1 `' S+ T
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) C$ m' f+ w- F2 ^
4 v+ b1 A: [0 n% v4 X+ p/ Q
set [trade-record-one] of customer item (([who] of self) - 1)9 X# b) O' t- s' A& P1 N
[trade-record-all]of customer
7 I4 ~, W2 v* u2 r
2 u1 F: T' c* t) uset [trade-record-one-len] of self length [trade-record-one] of self
" Z7 g8 \# y0 j5 |, W& ?
3 k) m7 p/ C* yset trade-record-current( list (timer) (random money-upper-limit))+ H& X5 b! U' X3 o
) n6 ~% ~& x1 U& k
ask self [do-trust]1 Z) Z1 L A/ W6 m9 K& P3 m1 H
;;先求i对j的信任度
/ B# H4 y9 W1 s, i! a2 C+ Q. p8 B+ t4 X5 j( I3 u& H* i4 w
if ([trust-ok] of self)
& t% R( G0 D G" i9 O4 H;;根据i对j的信任度来决定是否与j进行交易[2 l& r2 ^- o8 Y8 p3 |8 ]# V
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( V4 z/ D8 K5 i8 J
* N j+ a9 u* z$ s
[* s5 T4 C M; D% d6 }% ?
* Q0 U( _7 Y- k$ O
do-trade( t! {$ e! A( N* k$ { L
+ C' w; D! s# l7 L# r) M4 R
update-credibility-ijl V d( X7 d4 x) H
3 \0 g9 y& ^8 K' Nupdate-credibility-list, r+ d- x0 P5 {" ]3 D% [* i
9 c0 r3 T2 a- J Z! i& F1 S U8 F2 T/ [
update-global-reputation-list: C( D8 |" {$ M4 s# c9 _) B
, h; |/ [" B$ F2 q" u% Q2 U2 Tpoll-class/ {$ m+ q+ w3 n1 K
) \' I/ F+ [ W" T6 x6 C7 Zget-color7 q. M1 s5 E$ s2 ~2 }1 R- S5 `
& H2 }8 T& R3 [, S
]]
( W0 h& S7 b X' T. }* F- j
0 D0 J% o: T% L$ c7 F! d0 n;;如果所得的信任度满足条件,则进行交易
2 I# o0 X. ]$ d
# [! I' k/ z9 r& ?7 V/ I[
! y, d" v3 A& S2 S
& z1 N! n! A* D" Srt random 360
% I( X& A- o9 U3 f1 A; D; Y9 c% o4 c% l/ _% w! ~7 n2 f2 r
fd 11 j7 q8 N, R0 T4 c
2 g; M4 s; A6 Z- K2 J& @]
( B! _: D0 `# o! I# a+ D
+ H9 S7 \8 V. z& _end
9 `, Z* O% k8 N( z$ c- z" d l3 V: e
8 `6 Q( F/ O. C1 u7 `to do-trust
9 d# E. C# u' \. a; Bset trust-ok False+ ]* h( n+ \4 t, J P1 T
& }& E5 V) ^8 n1 a7 o/ O
( M& M! J J+ t/ R& ?let max-trade-times 0
: l" i! a+ L" E% [ v) P8 w) Rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
A, c6 ?! ~2 {& z* _2 alet max-trade-money 0
1 g4 r+ Y7 e \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
Z) r# T& l- g9 X. Llet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 O9 M/ w/ W! G, i, j! V
4 J7 K5 r T# c3 U
# s. V H' e, j$ k
get-global-proportion. j' L! G& k* a) M
let trust-value
V% R" t: O0 elocal-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% s0 K' n- x, Z4 T* d' C) h
if(trust-value > trade-trust-value)0 F$ k8 s' Y6 l" n: Y) k9 z
[set trust-ok true]3 Y, Q: l# ]1 _# B, {- X& t8 v* Z
end
5 D& t5 U R! a* f2 I; y6 I2 j0 S! z8 s
to get-global-proportion! ~9 D2 u! V4 m7 E1 e
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" g0 \2 k- K6 \* {[set global-proportion 0]+ _7 N( g- Y9 _2 G7 F8 {) B! b
[let i 05 O$ w7 x4 d- ~; S7 e. j- X q
let sum-money 0; I3 _& i6 t" k! U% x1 G' x# d
while[ i < people]; I7 e- V! V) h% \
[4 e y% d2 S5 {# |/ H
if( length (item i6 {) U2 n+ \) B
[trade-record-all] of customer) > 3 )- d: M! _0 P# P5 W) g
[
: J. H8 K. T$ U( D& p4 Aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))( q! h( A: a. \7 M& H
]
* j7 ]6 Z2 }# O+ [+ \$ B]% a3 W: ?: n C9 e( D
let j 0$ y1 q0 _ H6 ]$ Y* |
let note 03 x' G k' k3 _" _9 s
while[ j < people]
; r% i) ?+ w: G[. d) ], ~. l8 Q% h
if( length (item i+ N0 G) A# ?: h: j
[trade-record-all] of customer) > 3 )0 W# ?& N$ {" o( U/ c
[- B. K7 Y+ s5 ?6 |* P2 {$ [/ v0 h
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! U) W" S# C4 u2 V[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ V% L+ X- H; T" c
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. S) g- o( z3 G" T6 e6 S2 x] ~$ {9 c* X: J% X1 B
]
2 I* |( {6 k1 b( Z$ c+ J; Oset global-proportion note
S6 J6 o) A' }( ^# A6 m]' `/ a. ` ?* V0 U9 O% M/ T
end
" Y, h5 `- Y' P; P! r5 {% @) F9 }5 L
to do-trade# ]' u" X+ O ]7 j4 g
;;这个过程实际上是给双方作出评价的过程0 c4 t: D* o8 ~$ \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 p" n; |+ @6 B+ z3 k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: ~+ `+ ~! e) m- i, e7 w# f6 B
set trade-record-current lput(timer) trade-record-current
/ I* O0 d: O6 t" u! P;;评价时间
- Z! N$ Q. I1 n* P# A0 [2 Zask myself [
& \6 }+ V1 X. Q+ @7 P' n% Xupdate-local-reputation
% Z/ k* n& F7 m9 a3 {% I! x! nset trade-record-current lput([local-reputation] of myself) trade-record-current0 F9 j/ |6 c! V3 ^' s( P6 ~% q. u
]
% A9 Z6 m8 I3 z( Pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ ?9 i/ ^+ U/ X$ F7 W% V4 A;;将此次交易的记录加入到trade-record-one中
2 X6 ]7 R7 ? H, P. G' ?# S% F8 jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 j: i( z# C) L0 M/ j8 A& a
let note (item 2 trade-record-current )) a5 i1 g+ K& o; ]6 w
set trade-record-current
1 }: I( a2 f) m- }(replace-item 2 trade-record-current (item 3 trade-record-current))2 |7 U @7 W% s! |3 p- J
set trade-record-current
y' z7 w. y# k(replace-item 3 trade-record-current note)
5 q% g1 |/ a* v2 p& F2 W& d& _
7 s. g# ]" }- O8 @$ B! q+ d0 |) g X J3 y9 i
ask customer [% z6 v4 V. L$ c+ b: _6 t3 G
update-local-reputation
) s8 A" A/ g0 p2 r3 hset trade-record-current8 |/ x& w7 B" r; X8 D) d# k
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 C* k8 e" t) r) h! t' _
]
* q3 {- J: O& w, M0 k! X4 f$ O& {# U/ P/ b; l9 Q" c
5 F0 ~, f2 [5 n9 a7 ]% Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 U0 K+ N$ i) E8 O) x: y
9 K+ U- q0 A8 P# Lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( X( ^ }: F2 u0 K+ D;;将此次交易的记录加入到customer的trade-record-all中
0 L1 S. r1 r5 ~$ P( B$ `" Y# w4 Lend
& V) R! R9 s4 g
/ E9 I8 _% ]/ B* J4 S2 Yto update-local-reputation8 K$ \& `! h/ O& u0 ~& x
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ J( Z& c% b; B6 f1 P" z- _1 D0 |, Q5 E
+ @) Z/ D A/ I+ ?1 \8 ]# c4 n;;if [trade-record-one-len] of myself > 3
& m3 }* ~& z% l; V4 j' V2 Gupdate-neighbor-total/ Z# p" `) W2 l
;;更新邻居节点的数目,在此进行+ L& b$ `6 D2 r' p3 C- G/ g# X# Z4 e
let i 3" y( c2 g7 _5 P
let sum-time 0+ b' x$ m1 h5 ^7 ^6 {' E
while[i < [trade-record-one-len] of myself]
2 v: F" D: J* \1 H$ p* s4 v[; }/ P1 Z3 ]; S1 `6 Z/ S" v
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) L2 e4 ~$ V8 B9 g0 c) f
set i! m5 ~' d7 V, I6 Y; P1 i; A$ a1 m, [
( i + 1): V' v$ N1 q. }
]8 u% z- v, `4 g" K# z
let j 3
7 s' e6 E* H4 [2 A' jlet sum-money 06 X# {' f, c" E! p9 _$ M; Z4 Z
while[j < [trade-record-one-len] of myself]
X' {) s5 |" c5 y( Z[9 M/ O' t5 o. s( z! Q$ s
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- }1 @) h4 k; j3 A4 ~3 p7 iset j
3 [1 ]; V& |$ H* n _/ [, s( j + 1). M W( \, r/ R. Y
]: a) q" Y% O1 o# A; s
let k 3' O% \0 ^! Y3 J, C3 O
let power 0
3 p; a5 c4 G S: m& dlet local 0
) a7 |& s$ y. S; b7 j; Swhile [k <[trade-record-one-len] of myself]! a5 c e2 ~3 T, k' W+ f, j& l
[
- V. y+ n% ^% j" X9 h# B! qset 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)
$ s* u8 i# T+ C4 _) s2 Rset k (k + 1). c. Q5 f5 O' G
]
$ t# a0 p) [& I0 [set [local-reputation] of myself (local)7 p2 I( l* z/ R$ d: @
end
: L* ^. L" }. h2 o r% l
; G7 b- c# p7 s1 T; q& Bto update-neighbor-total
: U- T x" g" b" w6 X
A& f: V+ V( C6 N' Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 E; ^' R& l0 ?
3 D9 u( e2 F% I
; ?; M8 T! j H1 D+ M: `% Fend
9 _/ B+ z. T$ I* l* M, j+ c. n7 Z/ Q" U
to update-credibility-ijl
$ G+ U$ f) }# C6 t9 r; B; f* k4 O# O1 ?: Y2 y
;;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。
! W# h4 r5 h! D2 r4 e9 y& J) elet l 0+ ]* u5 y5 Z& H9 t0 S3 u1 m, Y
while[ l < people ]
4 B) ]& S0 `0 ^, V, M;;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7 ]6 X5 e/ @) C9 W
[' i1 y% }+ c, ]4 d) X j3 U
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( v0 m1 o. z( \; R, ~% eif (trade-record-one-j-l-len > 3)
3 Y$ U* f$ N" q5 ~3 r9 s: M, l8 O[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
, l! F+ E" v1 C- e7 tlet i 37 ^) q9 J4 u: w3 x
let sum-time 0( R' v3 O' m: l6 M% R$ }& V
while[i < trade-record-one-len]/ ]5 J$ v: h/ l% p
[& F( e" \' j0 k6 t( K, |) K& I4 E& [
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# I% O! C# u8 z8 I
set i
7 F+ ^$ D# m2 ~) k C: X& Z7 |( i + 1)
: k5 B. V% [: q6 a/ w3 z# C. a' p+ x]- U1 N% H# O/ a2 t
let credibility-i-j-l 0: M2 D4 g2 {: f) I6 n4 R
;;i评价(j对jl的评价)7 i* r* `" A/ \( j$ V- E
let j 3
# U0 V& _# U2 c3 M9 Xlet k 4 q+ \5 j7 x* t2 b) z# Y+ V
while[j < trade-record-one-len]
% v) k8 h6 V ?! I& k; l0 o% v[1 ]5 \) d! N/ Q) g% ?% J' E
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 g/ S+ Q& m" [1 M. sset 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)
+ y/ B. s" {: i9 p. ?" K% {! Tset j) \. w0 R1 r: }) Z3 T% [1 i
( j + 1)3 k2 W' p9 @; q5 w( p
] T3 s* H3 h# Y' k% l4 x# c
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 ))- f9 _& l9 {! @, N
7 u, o# Z% z) { h6 @5 t
) t* i% S1 ?9 e6 m! D1 ~% @
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( I) [- W9 L! i' ^8 X
;;及时更新i对l的评价质量的评价. i& O- i5 r) ?& z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ j, {; A% W" `set l (l + 1): J7 I& t* w8 X! m7 o
]7 V; h2 j# }% s
end+ [8 p" R+ j; X- w
7 X& F& x1 d( F# j9 |" I( {
to update-credibility-list; X4 C! p' h3 C/ p( F% F2 ?6 d
let i 0
( D+ k- F. l) ]5 B6 H' |9 E |while[i < people]% v! O q: U* S7 g0 A
[
" `& m1 a, u1 Q- N) J% alet j 0
: S( L- S7 x. k' Rlet note 0
6 E6 O; `0 Q! P2 G3 dlet k 0
# l5 u, d6 @. @+ x7 H7 f;;计作出过评价的邻居节点的数目
9 o7 o; ?7 Q9 }0 I8 `" \$ c: Uwhile[j < people]
6 L$ O5 P1 I! ]+ u[
: |. U* L* l( _4 @: Vif (item j( [credibility] of turtle (i + 1)) != -1) Y% d# E1 t* R$ N' {2 ^$ h
;;判断是否给本turtle的评价质量做出过评价的节点6 w0 _- M1 A9 x. B3 s
[set note (note + item j ([credibility]of turtle (i + 1)))- v ~$ H$ ]& I* p$ S: L ]9 A$ u, \
;;*(exp (-(people - 2)))/(people - 2))]0 d1 D, K# K n; o/ R$ p
set k (k + 1)
U# @. ^ y# X! l/ p]' D" \4 T7 {% T3 a8 W- B
set j (j + 1)
@% ]& j$ f: m* N2 \( R6 V]( z2 k- L# A. v& ?
set note (note *(exp (- (1 / k)))/ k)
) Y6 n3 X( W0 d2 H2 H9 \set credibility-list (replace-item i credibility-list note): w$ Z- e3 X: Y. l& Z* E6 b" _6 X
set i (i + 1)" T* p: k6 H1 r3 u
]
& J$ W% Z* l& h6 X; F- n$ u/ vend
/ `9 h2 ]! k" f9 S9 o
$ A8 D9 O2 P) b `3 u' ?+ U+ Fto update-global-reputation-list# z) y8 x8 j5 t' c) k- X( _
let j 0' {( s) r0 [3 \, P- s+ A
while[j < people]
- h0 K3 T2 R, L- h[
9 G2 L: R! X5 f* A- [0 J5 Jlet new 0
& J+ M$ R9 f" w9 [: o/ \' j. s;;暂存新的一个全局声誉
, ~# S& [5 ]: N& m2 M9 D+ `let i 0) i9 T2 h2 y4 u4 F4 w l6 h7 j
let sum-money 0
5 }* w( n) T6 s% p$ ylet credibility-money 0# M% p' T8 t& B2 ?" W! b
while [i < people]' |* Y1 q$ o" D- R) _# ~
[
, p4 W+ A0 B9 I. M7 E) l2 Cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# m5 }0 w% w b- L0 U$ L) W' Nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) G4 `$ h. L) d9 L
set i (i + 1)- d, U3 m9 n( F
]0 O& q- u) ?; ~# n8 K: v$ B7 s
let k 0
8 J- W+ B |' s8 g: ~let new1 0" M6 [! R* z7 w+ R
while [k < people]1 ~5 U; c' r+ y4 ^0 v8 D+ r
[9 o. u/ t& k! l; q4 M% S
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)/ `2 R# }8 _6 x3 Z* C
set k (k + 1)
% m( G& ?+ l6 @) f. c; F) X]
# ~1 S! ?4 |# g5 o4 A! N6 E( X4 sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 t4 X; ^, D" Q) Y( ?/ p/ v
set global-reputation-list (replace-item j global-reputation-list new)
* q+ _4 S- t* j; @; Iset j (j + 1). y# Y3 U; h3 {& F, D
]
( l! V4 C7 w% c0 M" d, |end, ^+ b0 ]: n6 p5 `
9 `2 ?# A+ r c% a+ K/ U1 e" d, Y) N) v- u, k5 \
- P2 w. c2 X* I$ m) e7 o: g
to get-color
+ C0 m: T# V; G: o& ~. e9 z; D
* ~6 J+ e. N5 E# Y, P3 c7 `+ ?; T h6 jset color blue5 J- I# N! F4 @$ c% s; B: y
end: G3 J4 Z1 e8 @+ n/ s/ `: m6 e( H
' c1 y J+ d8 b7 D5 p: w2 \' Bto poll-class
$ K# d# V8 `' Y4 f2 b5 }) Jend
4 T* y1 U8 u+ R) O i' s2 g& }! D) y- G8 Q5 J
to setup-plot1: i' s* b9 q; |/ Y, ~6 z; w
- o" V& o0 N" ~" u& n4 x3 l) ~set-current-plot "Trends-of-Local-reputation"
7 ]) X0 x" g. [- s
( P! U, T0 P* ?7 V7 |/ Iset-plot-x-range 0 xmax4 @6 \' ]4 s; q4 W/ y9 W% _% v5 `! G
4 L/ A1 b, l+ X4 w7 @& B
set-plot-y-range 0.0 ymax9 J- n0 N" @8 E6 i% l
end1 J! t$ Y4 R0 w2 B( u6 Y# O( {8 s
7 i, W' ?3 b, t$ I2 oto setup-plot2
7 V( l8 t1 c, M# j! i9 t: {8 J% `7 u( s$ Q' ~$ p1 D$ s
set-current-plot "Trends-of-global-reputation"
6 B2 m8 k( ^# T, o
' }. J! _& h3 k/ R2 Xset-plot-x-range 0 xmax
8 p, N1 J9 L4 e9 C2 D C7 e9 J: r2 y, P, G7 |+ F c# ]7 H4 J$ C! K
set-plot-y-range 0.0 ymax
+ f, D0 q6 N* u4 f0 v% S0 n) qend, X; S9 P v$ |6 Z; t! U; y0 v: e
. G( @* F% }" a
to setup-plot3
8 \. \# ]# o% U2 _; _5 C$ s0 u0 ^- \9 ]! Q3 S i( X
set-current-plot "Trends-of-credibility"
; Y3 b$ J- p2 T6 R, g( t( ^% {% V7 ~; t
set-plot-x-range 0 xmax5 v0 b- J5 V5 f) b
0 D1 ]& ^, C# C! f! d. O1 c- k
set-plot-y-range 0.0 ymax: H; ]( x1 e @ z; n
end
! J7 i5 Y$ d+ H& w, G! s4 M. i# `. c# j, b
to do-plots; m* [" b# [ b- G) o
set-current-plot "Trends-of-Local-reputation"
! c& }- L) @8 n* \6 d, Z) Z! {& uset-current-plot-pen "Honest service"1 H$ n; e! \# g! U2 Q0 Q4 L( j
end
; D, a0 X0 S) c& F
5 m+ E" c4 L6 j[ 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
|