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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
1 r# Q1 r8 k. w7 D0 ^9 dglobals[$ s1 u5 w" R- H N8 N. i
xmax
( ~5 W" C; U0 I$ n# D; [7 q9 v: }ymax$ X% M* W) T- p* U
global-reputation-list. y, U: L' V+ Z* L
, o: b* y* K: P8 F- Z
;;每一个turtle的全局声誉都存在此LIST中
9 a) B; k& G# Q1 x4 m! I7 vcredibility-list
% C$ l% I' [! h8 i;;每一个turtle的评价可信度# A: m" `0 P; f+ F2 R' A$ h) Y# m
honest-service
# |/ v9 f' Z1 J3 i% ]unhonest-service% s4 x8 {+ \. K* K; M( r! F0 {0 v
oscillation( p6 `: J6 g6 h& ?1 W
rand-dynamic
- Q" E+ S- {% L' V]
/ _' {$ I" }# Z) l( K0 e8 O: C( i" `5 e( a1 K/ `8 B
turtles-own[2 T- y9 j" z: b7 ?% u* q2 k4 z- ~ P
trade-record-all
. X! \! J5 j- i3 w* X0 e. \;;a list of lists,由trade-record-one组成
9 U- y, G. Z! Q$ \* Atrade-record-one; g5 \' J5 i* [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
. Z; e& D3 `4 p2 t( N5 E1 {0 R' V# b7 y8 J" ]+ f) s: N
;;[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]], z& A: m& W+ _. p7 x: d
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]& e# G7 r7 h/ I/ f2 [4 x- Q
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
3 g; s [# x; U Z4 Y4 X4 A0 Oneighbor-total
4 t! k# f* \% d! u' U;;记录该turtle的邻居节点的数目4 Q: h, v$ n/ i, N+ A" f8 l
trade-time
# a3 c# \) L4 F$ O9 _" Z1 a+ Y;;当前发生交易的turtle的交易时间
7 Y3 ? d0 G; B E9 d- J* e* fappraise-give
, Q9 {* f1 c$ G# Y;;当前发生交易时给出的评价
0 F' a/ S0 v3 {- P' i% P6 _) Qappraise-receive* w ~: w0 H- [$ I; A7 Q% G; X
;;当前发生交易时收到的评价
0 V- X& z! P% M4 c' L6 m$ Aappraise-time
- T3 M# e1 D8 S4 K- _0 S5 M8 D;;当前发生交易时的评价时间9 q G& A% A; A3 W5 M4 V0 t% ?$ Q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 w9 B- p6 ^! V& E5 _: ?
trade-times-total5 E9 s5 d* i6 J2 r
;;与当前turtle的交易总次数
+ [6 W O8 v; w4 r' y7 P! V4 @( btrade-money-total! U/ B* T3 H/ u( K8 B. F1 G) A
;;与当前turtle的交易总金额. K" t, V, p% O
local-reputation1 Q+ V) \& L2 j+ t
global-reputation8 F' f: I$ Q% u+ m4 M @3 l F
credibility: ?! F5 V$ o4 P8 x" g7 [
;;评价可信度,每次交易后都需要更新
8 u$ `: R% D4 V, z, b% t- ]credibility-all9 o( S: W! [+ A/ g6 |1 R% S
;;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
& Q9 M% |& \$ N; O2 c% @7 ?) U8 M; s/ s; [- u
;;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+ t2 m% n0 C/ E: N! g. I3 [) i
credibility-one
) w: ~# A$ l% i" ^( l3 K: b+ U;;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9 `- r& T, R8 Q9 c5 ?" s
global-proportion4 P$ F/ X# K* \1 V
customer
6 M+ g! L0 b% b. g! \5 r. Lcustomer-no1 H, V9 E; f5 s' P: D- t+ G
trust-ok. E. \; `8 D& T& Z8 Q
trade-record-one-len;;trade-record-one的长度. e7 j2 u$ l( m# y
]
! W+ m9 `7 _- Y% w6 U
6 m! C3 x+ ~% a, c- l2 ]* j3 \;;setup procedure v0 z& d6 H' q: G- s( d8 u8 H
5 X) v) _# V( R" dto setup4 i5 W& ~$ r3 C5 _) X+ F( @/ ?
% } ^" ^1 M- w- [) j) s/ a3 d" R
ca, J, `& [! I! L3 @- C
' z! _. I* U z9 h/ iinitialize-settings, b2 Q! |! E$ Y
& q+ N* @$ o8 a j
crt people [setup-turtles]
# s. ]! m; C y# ~0 _5 u( o* z; q: o& H# v1 ~+ l9 e
reset-timer: {# X- K; Q6 }! o0 X$ L$ f
7 W$ n, j9 O$ ^5 H7 o) t5 `
poll-class) U# ?; W4 I# I" U4 c) B$ t
) S' t2 A' \" n9 ]5 N2 Psetup-plots8 j- |* M4 V Q3 i, r* I/ ?! U. q+ k
$ Z; v. G' K2 T7 hdo-plots2 e. p; b" h6 }6 _- L
end# G! U! R( ]6 E1 F% L c, P2 [
% D* C: e" ]8 e
to initialize-settings' p9 k! M4 }& l
3 o. I, e H! ]4 _
set global-reputation-list []7 }2 E( S' w" U, V
' K. @4 w+ }% Gset credibility-list n-values people [0.5]
) T1 \- W' t) e% G4 y! i$ U
) L8 d9 X+ c" Q0 Y* _! ^( Hset honest-service 01 C& L) n$ K$ n' ^! u, {
' [+ _ Z0 m9 z- `: v7 F! eset unhonest-service 0, V) J U$ |7 _2 n' n
# d9 R }1 t D7 p2 c8 \set oscillation 0' R. H. g) r" t: y, _
! e8 z2 G) G8 p) ], Sset rand-dynamic 0
0 h, `0 z7 _1 I/ Yend @8 Z! Q) D( v6 Z7 X
+ P6 x6 L f. j t t) N. vto setup-turtles
& U- h7 e" }2 _0 o9 w* fset shape "person"
) c/ T% H6 Y% F1 X' Dsetxy random-xcor random-ycor
- F$ G5 O) u8 b8 p# j/ t" T( Yset trade-record-one []. s* ]7 l+ R) A. t F0 E
( S* r4 P6 Y: e4 {set trade-record-all n-values people [(list (? + 1) 0 0)]
! u/ H( V8 Q( W7 z8 `
8 }" D3 u; p" B2 ~% h7 k. [- Yset trade-record-current []
' |& y* r& T1 P+ v% |, g/ ?set credibility-receive []) ?* [7 E# w* {
set local-reputation 0.5- f& d( l4 W' l, I
set neighbor-total 0$ x1 e1 d6 w+ X$ o" w) Z+ U
set trade-times-total 0
7 W: b5 N( J9 q9 Q+ ~: } ~7 {set trade-money-total 0- o; }7 ~" v! y# |
set customer nobody x) i! Q0 b4 n* P
set credibility-all n-values people [creat-credibility]
' J2 v! }0 N7 Lset credibility n-values people [-1]
- x6 B! C, G: x! O; p# Fget-color: x: M5 `; T. v" U1 _7 g
& k& k! X! a, a3 I
end' _2 D+ s' Z5 s* j7 H7 C# ]
3 T) {, r( ^1 F- S7 R
to-report creat-credibility
/ \" i. K$ ?$ Nreport n-values people [0.5]
& z- V% v- u: S @( hend
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to setup-plots
: `1 U* r( l% L2 v/ n: B+ O V) f6 G) l! c4 U
set xmax 30
+ x6 o! ?2 I( i# F5 D
5 r# D3 J7 X, {# iset ymax 1.0
; u- u" W3 c) h+ ^6 l
# [; V& {- M% e! R) n& [+ x2 A6 uclear-all-plots
/ e0 z3 t& s" ^% e- j( R3 _$ j9 J; {+ W9 N
setup-plot1/ w# J( c( t$ Y& l- n; F6 M
/ j/ x* D. a/ o( \2 T9 W7 D! u' hsetup-plot2
$ t' \1 e1 R# d) t) X' ?
" h8 ^8 h c# g# M& _. O: @setup-plot3
: D/ N! |0 d( O% I- `! Gend
3 ~" k. @! `/ ^5 ~: d
9 C5 K' c# F- r* h: A4 A;;run time procedures
, n* \$ X5 |) O. H" H5 o" h
- \6 E/ R$ w5 i, m! J( qto go
& `* U3 K B' X1 N% ^! \
! }( u* W+ K! G3 } D4 f1 rask turtles [do-business]8 L L* c% q2 y& b
end
: z2 Q& j7 R) z; P0 S$ b% F+ ~9 ?9 ~# d& ^( B: Y S( G# X
to do-business ! V) [( G$ b, f/ d
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( u& Q6 b `0 n# { J8 j) R+ w
rt random 3607 e8 E2 C% @" X8 J) ^2 c* e
0 T6 W0 v. f: C4 W3 Qfd 1
5 F- t# G, p2 ~4 y9 ] v8 p' t/ y2 s7 a( z& o0 H
ifelse(other turtles-here != nobody)[
: k" ^1 {5 ]1 K: H$ h* K* S" w( L/ t3 ^0 R) n+ p% [2 {& h
set customer one-of other turtles-here" x3 Q& x, j' R9 D% d
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;; set [customer] of customer myself
, D6 U6 T- ?9 |9 ]
; F( V, j8 }+ A& f# _set [trade-record-one] of self item (([who] of customer) - 1)
7 b l5 V5 T* @1 z) L3 T[trade-record-all]of self
, ^& A! ~5 H6 ^! E1 j3 E. @6 E% _+ |1 p$ Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 d- X( E4 E# w. @* r/ K1 K- V& E8 B6 \$ M8 A6 L ^9 t
set [trade-record-one] of customer item (([who] of self) - 1)
1 X& r3 }3 b% f$ X @+ S M[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
! w7 v( c9 F8 D% ^" ^3 ?, F4 l/ p9 ]( P/ J' q1 m# \4 }
set trade-record-current( list (timer) (random money-upper-limit))0 k- h: a( j% ~! ]2 r/ q
; p- K4 X# s9 t( x+ e; l# ^
ask self [do-trust]8 F' y* D" t( A
;;先求i对j的信任度0 i% P# q1 j) U9 _6 u6 T7 G$ r; o
" t+ n( F4 @0 E- _! P
if ([trust-ok] of self)
8 m9 x+ ~8 X N;;根据i对j的信任度来决定是否与j进行交易[
3 C/ G0 a# n/ c4 f5 c( \ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! l. `5 t' U% l$ Y# m* [3 L# K
' c X4 m6 ^( N/ e, F
[
# F. r' S b2 ?- f' p+ _ n7 b1 D7 B! G) S: b( D# V, W$ H% Y- H+ \
do-trade
+ z, v) Y! C V/ X9 W7 n" s0 _
0 c; v1 b. v. j; B/ D) |update-credibility-ijl( e( @9 n$ f$ }6 L% T) }
1 `( Y0 L# Q* H" o" R5 @$ k% Q
update-credibility-list" x9 L$ g" n0 |9 ?$ Y |2 @
0 b2 W$ `9 a+ t/ M8 A+ Z
" g0 ^& e g3 ?* ?' D; C
update-global-reputation-list
- I2 m+ x0 B4 E) _9 X) q# G. s% j; O$ O$ N
poll-class
9 V5 Q% ]2 [' E$ ^
+ ^4 P" M' B6 J1 U5 I7 ~get-color
' y2 e, P8 ]" n
% ?5 M. x2 j. v, a1 }3 D]]& R1 b5 P0 J: X8 k$ L3 M4 R
. M1 O! n( f6 @2 ?9 r7 \1 H; T6 t;;如果所得的信任度满足条件,则进行交易
! J z( x4 {8 b3 I' d6 G; l) [
3 G1 c) n* d( a. a4 P- |[
4 c; k" e# z: s( Q$ D) b4 Z* p. W
+ j9 r- [8 m' Frt random 3603 e/ o+ v6 f( u+ _
+ e7 I7 @8 Z x0 v" j) R- r# afd 1
; t1 y# L; z+ v6 B8 [4 j; l7 m R* Z( @
]# ]9 ~/ ~. y6 K# j- @; f& K
; V6 a4 G+ r9 w6 ~
end/ `, ?9 W# e7 @9 o% J; z3 x
& w4 T/ u" T7 w( x
to do-trust 2 z0 I6 U c! S$ w
set trust-ok False
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% Y" |8 z E1 C5 J- I# Q) @. @" x5 T
" |7 x0 H) M# e" j2 `let max-trade-times 0
3 `$ ~+ H) C1 i8 R# ~! iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" @& K- z+ K' b; h" C( r& a
let max-trade-money 0
' l% f/ N9 z: P; jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; |% ?; n4 A# s* D
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); v/ B5 \6 i& o8 U
0 z0 [9 a5 V' L& e- {# }6 z T1 e; F' U3 T. r; Y7 w: J
get-global-proportion
3 J8 ` `' r( k# ~# E3 llet trust-value
( ^$ ?5 B* r* R! h( A$ c ylocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' d$ { B; e! c4 r+ r, G0 Qif(trust-value > trade-trust-value)' D5 F2 x' h# F
[set trust-ok true]8 v, l z5 j: @6 }; q
end9 f. }$ u8 U4 x5 ]/ k2 G7 A
9 b, w7 ]+ M% Z0 x9 Nto get-global-proportion
% L% P- i; C c- zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) G! ]/ t; N2 D- x. e
[set global-proportion 0]/ S" T% ~7 T1 Y5 D5 L
[let i 01 ^# @" v9 y9 O5 h; F
let sum-money 0 J% d, _2 d, c4 ^1 `5 d/ G. ]
while[ i < people]# Y! x, ?0 m- q2 s# F" ~/ e1 b
[$ I2 v' O" b, ^! U0 L
if( length (item i# s P9 O1 Z2 r. U: o6 L
[trade-record-all] of customer) > 3 ). b7 C* D' d/ P( |& r1 S
[
0 ]3 p5 J- n/ N" F+ A8 Qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 _ f% Q$ j/ J8 K]
! S* v9 N3 n. e]5 }; e# E+ N( u
let j 02 K9 t7 A, Y/ N
let note 0# I9 x c2 g4 y) e; V B
while[ j < people]4 y+ c9 |1 O4 b9 a0 }: _/ a' ]: D8 b
[3 E7 x9 |+ f% J5 g3 k
if( length (item i: F8 L @7 R" |. M' H* W
[trade-record-all] of customer) > 3 )# h$ u& }8 o/ W$ @4 }
[
9 n9 y$ N) s+ X2 V9 L" H$ i V& Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 B' o5 s6 Z1 s' o4 R[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- x' A2 e4 {6 m6 {) X* r/ E7 g
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" D! s" ~/ c7 [+ F& y
]" ^ y! x! r; X6 O
]! X! U+ v% f4 \( h$ L- w: Q; ?, b
set global-proportion note
0 f' H% s, z3 Y: G& X! e0 p! g" z]
& ]" b+ P# m8 L) |4 ~& c. f, mend! c: B; i/ {! d6 Z- Q- Z9 S' T
a/ ~5 j7 L8 I
to do-trade
0 `( z! d+ ~, F' k) ~# B;;这个过程实际上是给双方作出评价的过程; g( o6 e2 p2 v$ F3 Y$ \; a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ w. ^) }* c- A+ Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. x7 R# `, i4 |set trade-record-current lput(timer) trade-record-current& f2 ?! o$ Y9 y. x
;;评价时间! G, _0 o# v; g% T2 A9 _' H
ask myself [
. O+ X6 P, f) v4 e( {2 }& Z' }4 v$ nupdate-local-reputation/ B6 r5 `( j q( K
set trade-record-current lput([local-reputation] of myself) trade-record-current
* A, ]: ^# N/ b2 W! P; e7 a; d]* L4 e; m) ?2 H- T8 k& v
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" C% v: ~' c8 R3 i;;将此次交易的记录加入到trade-record-one中/ U. d, j, l0 t* Y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; q, t; {" R1 `+ {& @% y! ilet note (item 2 trade-record-current )
I% Y& `$ J G, q* b: o( hset trade-record-current
8 Z7 s+ ?5 b- h' o. g2 t6 k(replace-item 2 trade-record-current (item 3 trade-record-current))
+ I1 o& \! I$ @. C4 Cset trade-record-current8 f5 p' Z5 `4 Y6 Y
(replace-item 3 trade-record-current note)% i) V2 N# U p0 W
& j; z( y) ~& E/ f
8 b3 d! }" v( |$ L! Yask customer [6 Z3 N5 h3 y, m# z- r
update-local-reputation" m; U# U8 r' R4 [+ J; _( A- H/ D+ u
set trade-record-current @1 N0 b+ _' K
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; e, d( v0 b# o. r* {; a( a5 T0 Q]4 ]0 O' h; D3 F5 M0 C% A
. h8 E' ^/ x3 S' ]) Y$ D
. z s, J( G D: q' o2 @. u
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" _# o* H5 n* m7 {- O5 q& X/ c+ {6 m2 E, E2 y& Q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ W, m3 N- k' F. U. w5 Q3 G0 @;;将此次交易的记录加入到customer的trade-record-all中
& {, g( Y1 B# s6 l5 ~end
, ~( @1 {% V& S. Q6 [. Q$ A1 E4 I
2 d# S7 Y# z6 s! s4 B% {; Q( {to update-local-reputation, r$ l/ v4 I6 m2 X9 t
set [trade-record-one-len] of myself length [trade-record-one] of myself
$ |- w: L9 x! o
3 U( w1 u/ V- C, M2 Z0 a3 }
7 M) S3 ]2 J$ b" j& _& \;;if [trade-record-one-len] of myself > 3 ! l4 q3 B4 B" I6 \4 k9 U/ z7 ]6 l
update-neighbor-total
7 b% \; S$ `, O, ]/ C;;更新邻居节点的数目,在此进行
) j f- k, s& [( P" \let i 3
1 W4 P& ?. }& l: \# q" [let sum-time 0
# I4 W" j: z1 G# awhile[i < [trade-record-one-len] of myself]
7 E; I; F$ l+ i& i9 C4 {: S: \/ X[4 \, r: i$ E# v9 }# d/ K
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" K7 @- V5 ~ D& _/ S
set i
\! U7 ]8 r1 ]: r3 a4 ~9 A' V+ i( i + 1)4 Q1 c, n4 ~) D5 N# ~# X8 a% O
]
) k' l Z& N. Glet j 3
e! X* R* N0 a! ]/ Vlet sum-money 0% Z0 k! X1 m5 D1 f( o
while[j < [trade-record-one-len] of myself]4 k M1 n& h2 y6 V. N+ Y# C$ h, h8 ?
[/ U$ I0 z, G& X( b$ X6 {5 g( A% \ U6 l
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)
6 v7 |, e) E8 S& E4 mset j
3 {& ]3 V r# x7 i8 @- ~( j + 1)6 z6 t9 A3 W G' t) a& @6 h
]0 @# z h7 ?/ x, K2 G
let k 3) [0 i7 V S3 n
let power 0# X0 K8 U$ \; P& D; J+ @2 M
let local 0& w$ D# |# C6 c* {3 O7 Z
while [k <[trade-record-one-len] of myself]
" N, H( j; E d! z' R- L[$ Y/ T$ W* r( M& }
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) 7 N- e ~( K. m2 B1 o( g4 D- J
set k (k + 1)9 y3 o. A) W, T, D/ x( w
]
! @+ R& E$ ? M! Nset [local-reputation] of myself (local)
) b% [9 y* @/ J' j3 l4 q1 Send5 D( ~' c( H# k* L$ O
3 _: t: g/ p/ z9 c8 A. e% ~
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: T, m* l7 \( N7 V5 m$ z9 s
W' v2 n7 G2 v/ ]7 r) k( |
- G9 B$ ~" P4 B2 C* Nend
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to update-credibility-ijl
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;;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。
( d: O+ a3 c4 `! Clet l 0
/ X# B0 a" Z# P+ K% Y7 zwhile[ l < people ]
+ \6 y2 v+ N5 e7 N5 w9 t) G e# 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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 B6 e( Q0 ^3 ^1 x# J* b; V1 X
if (trade-record-one-j-l-len > 3)$ ]* [6 Q7 u i% Y
[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
- S7 y% N `+ j6 flet i 3
0 q i% {' k9 P- P Tlet sum-time 0
0 Z: x3 Q1 _) e* k/ `: z7 I; H/ dwhile[i < trade-record-one-len]
( [2 }! w0 { x9 p3 z[
# n0 K4 o! g% {1 q w2 n. Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, ?' y6 ?' N/ x8 A4 zset i
# D$ c) g' ]! ?5 ^7 ]8 | S, n( i + 1)1 Q! B8 z6 v( D. H: N
]
" g. a0 }5 b% F( s$ G, dlet credibility-i-j-l 0# ~5 c" `: q8 `: H
;;i评价(j对jl的评价)
1 m+ T! v2 z3 y! v3 B( M7 wlet j 3
1 D& V2 d' f8 m4 m% \4 ]let k 43 A9 ~! p. O5 e* ^- c; A
while[j < trade-record-one-len]3 C+ K; _6 `0 N8 h
[
/ `) [3 _7 b/ l. Mwhile [((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
$ U+ d2 }$ H/ D' [3 `# M) e6 t. 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)4 m/ `# T' b! z3 V
set j& f& ]1 \. f- L& K# d6 A
( j + 1)
+ R4 h: U9 ~- N, j' []. n3 o, _0 H- n4 i3 v
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 ))$ a3 F8 H3 B# |* @# H# \
7 Z+ k/ p. v! W# E
) c/ T6 \( H7 rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* ~. [) Z5 |( f" i- n;;及时更新i对l的评价质量的评价
9 ^3 H' e0 m: Z& h0 o0 mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% `# A$ l9 l8 [( u9 a. Dset l (l + 1)' D) W' K! |3 h* @
]
! P f& {( G# W8 |end' c- F ]' ?7 | W, V3 U! A
8 p- S, Z' p+ p# y! t6 T" ~7 n- nto update-credibility-list% f2 R0 z# @6 |, g1 q1 G& ~1 Z" A
let i 0
& r8 ^' S5 W/ W* x' rwhile[i < people]
4 B% `" H, m6 U8 ^4 |[, j( t6 E! ]' x5 X. h! J
let j 0
# O, q- o+ e6 [+ ]let note 0
; s/ d8 @6 L$ y% A) i* Clet k 0' F2 m C% X, a. {* A
;;计作出过评价的邻居节点的数目
! v$ Y& |" x2 u. l; {while[j < people]) F' w1 ?6 [; K7 Z
[0 Z! Q1 C7 ~5 @) r r5 {* g
if (item j( [credibility] of turtle (i + 1)) != -1)9 h1 ]8 i; q4 n) q& s6 W; J8 d
;;判断是否给本turtle的评价质量做出过评价的节点2 R2 G9 v9 x$ M( C
[set note (note + item j ([credibility]of turtle (i + 1)))2 h, e) a2 X+ ` u
;;*(exp (-(people - 2)))/(people - 2))]
+ ]* e/ E: ?6 q( B$ e% kset k (k + 1)
2 q+ i8 Q( w. C+ ~]
) l& c* m b2 z7 ^set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)# ~. }( ~ T. T9 T5 I
set credibility-list (replace-item i credibility-list note)
; X! U- I5 E8 k! W8 D% m$ F+ E! tset i (i + 1), K0 S" ~3 B8 F9 q
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end
+ O+ z# r# D) S$ j! ?: s0 X+ E, A% m4 x" B) m. S, }9 c& y; Y
to update-global-reputation-list
r- ?, U( f0 d2 Q2 L* {/ slet j 0- `' V' w- B; @1 L1 N4 r" `
while[j < people]
' s, x) U* f9 I4 J2 G[% g& h7 c! w4 x
let new 0
' g6 g$ X/ G0 [; M+ V4 m;;暂存新的一个全局声誉
; }4 z" |9 \7 S B F) i# h) T) vlet i 0
5 Z8 i0 t3 F# q/ z; blet sum-money 0
, z. v$ Q* }' x3 g/ ]8 J- \8 Slet credibility-money 0: ]9 a4 m% f, n4 m* E
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 Y. U2 m3 ?2 M1 h# v% a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* q- N% b8 N8 c2 o$ lset i (i + 1)
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let k 0$ ^. i3 V. H$ Y' E& y
let new1 0
! S" V2 H" ], A Zwhile [k < people]
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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)
0 a0 q9 f5 M K& Iset k (k + 1)# [7 E3 ?& G5 d s! i2 @0 ?% A
]
) `. ^: R5 _4 | b% J N( Q7 L+ {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ) H. B. `5 [* T. E# H" G7 K' ~
set global-reputation-list (replace-item j global-reputation-list new)6 _2 `& ^7 V, M2 u7 S
set j (j + 1)
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8 y0 G: G* s' p, `! o5 _( W, p* z7 E, tend
: }9 j! @ M& s q- Y8 U! s5 o5 Y' c* U' J% J$ i
3 q' n" |! z6 E: v
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to get-color
" }' X6 ^% O1 \, d" ?7 t! o1 f% t) z- h' n9 l% G7 w; `
set color blue
9 p/ k# A3 U4 E2 B8 cend
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to poll-class
6 u6 b+ K& W, B. Fend
" b# O: @, T! o5 l/ m$ u- m
0 R: O2 @( N' L% o _to setup-plot1
: Z, V1 l( m( R3 }, f" p! M
* z& i/ m$ d+ c+ G3 m8 {set-current-plot "Trends-of-Local-reputation"
% c+ U0 I0 ]% S }
4 P% W4 G* Y6 h4 y2 [) Y/ e' uset-plot-x-range 0 xmax
; j" ~) j+ L9 B) k V1 u* N, O& e; z/ H4 w) \8 g& {# Y
set-plot-y-range 0.0 ymax
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. |& I: L2 }, b7 P( ?. R9 sto setup-plot2
; Y9 u9 {3 R& Y& ?
4 S0 ~0 x6 y2 x; _7 K) ]set-current-plot "Trends-of-global-reputation"/ U: I& @9 ?5 \% V% |0 O
; r j0 N, l: }* I2 G* a0 z1 [' eset-plot-x-range 0 xmax
0 U8 R6 J1 e' @, n+ E. I7 V# L/ P6 c' Q) L9 j' w
set-plot-y-range 0.0 ymax+ g1 Z$ }) ?/ N( N9 _; n( W; X
end
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to setup-plot3
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax2 T- i5 t! k& v- V' m6 N1 W
" o8 y" _- q" R8 y/ L# V7 fset-plot-y-range 0.0 ymax
" M7 u$ ?& e2 W4 q% |5 oend0 {6 `3 D% p( G4 k: _
2 ` z$ L% H0 U% X% {3 D: zto do-plots7 d" G: M+ E: L7 e) ?5 |7 K
set-current-plot "Trends-of-Local-reputation"1 [5 I4 F/ s/ U
set-current-plot-pen "Honest service"
' d1 H$ r* @* ]end
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7 `4 K* j# y" T[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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