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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5 `% M) l5 u7 g8 T
globals[
+ q6 |+ }/ b! X+ o) S6 C+ n5 Txmax
1 v" S1 e) e$ H/ L, Qymax
9 z9 D, N, \4 }- Z9 oglobal-reputation-list
* U' } ^: F* R$ R
7 K d( H( B/ t! B;;每一个turtle的全局声誉都存在此LIST中$ ^3 q) h s' R% p
credibility-list
( m ~6 ?. H. s6 {* C;;每一个turtle的评价可信度4 x% \. a! K: r! d5 S0 U
honest-service
6 Z) }0 m: n" g3 eunhonest-service( i/ n$ J0 t4 [( R7 V
oscillation8 S3 r' ^8 z( C8 t) P. B
rand-dynamic. }& D+ _0 ? P: E6 G0 k, J1 c
]
d+ S" |* W. f9 @" R6 x* S1 x8 l$ R6 Q* ~, M" l0 @
turtles-own[
^- W) V. t$ q4 [trade-record-all9 C5 b" c, O! {7 p7 X5 i+ w
;;a list of lists,由trade-record-one组成) ?9 A, G1 w4 m/ h/ f1 U
trade-record-one( P9 T4 N/ j g& [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 Y& y/ S+ e' K/ P2 V
, ?- E& G+ t3 q+ E" j;;[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]]
* M; K% h, E! ?8 N# gtrade-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]
4 D+ z/ ?# B8 f+ }7 hcredibility-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: z7 a7 t9 k% c# r1 i7 y
neighbor-total
: V# B& Z3 @" @8 W;;记录该turtle的邻居节点的数目
( a- x- e+ f6 `trade-time
4 W, m1 B2 ]6 p) C, |, i;;当前发生交易的turtle的交易时间+ P6 y$ ]; f* G3 j! I' X
appraise-give
0 A! l% M5 Z' w1 i" h;;当前发生交易时给出的评价" e1 |9 s+ L4 P4 Q2 Q
appraise-receive
- f) c* P: E& g" {;;当前发生交易时收到的评价4 z! h3 H" J# |6 L4 _
appraise-time, ?, g1 x0 ^9 b5 T& z! H
;;当前发生交易时的评价时间- R' C J5 o) `7 ?1 g
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! M( L6 f, ^) C/ u% U3 I0 b. V0 o# Mtrade-times-total! W& ?/ s! n, R2 b& m8 q
;;与当前turtle的交易总次数
; t N0 A0 l* Z0 n$ a' J- rtrade-money-total
# e+ L9 |. P( Z* d;;与当前turtle的交易总金额
" E0 R( Q6 R7 r! _+ clocal-reputation
% N! J. E5 C Aglobal-reputation: _/ l. t) F9 t
credibility
6 V# U0 J: Q* W9 S. b;;评价可信度,每次交易后都需要更新 @* U- ]1 Y& R# ?
credibility-all
9 i6 w( X* o0 }& o8 `;;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8 Z/ l) z9 \ k' V& G
7 E) l$ `7 F, K
;;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' `. A# Y! U/ F+ l
credibility-one
! c/ O1 I9 H3 }! h;;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/ g/ z" ~) H6 F
global-proportion
) p3 V) Z% v- X! q7 J! i( `customer3 E6 k) n: f2 ?: ?
customer-no
. n0 e9 v* N1 H X) p6 ftrust-ok. l4 ?# E: N- a2 Z5 Q" ]. `
trade-record-one-len;;trade-record-one的长度; K! m' E* r$ C& C# l/ W3 T: v7 U
]6 l O1 Z+ @0 Y
, _% C& [- j$ N Q;;setup procedure
$ e' {$ E- T1 D' {: B
h$ M9 l- J) B2 ?( d4 S; Rto setup
8 V0 C6 K3 m" f) b+ M7 `( ]' T. E2 m6 r& T B
ca
8 [. c% M |. B4 [; { w& o
0 i0 x! y; T/ A2 s" ?initialize-settings: ]0 i( E5 s3 E2 y
) o0 u4 r& X; v" V8 x; Wcrt people [setup-turtles]
7 {: E1 g( s4 x( I: d) ]
& @0 R4 J% V6 Mreset-timer
\- n2 p4 I' J6 c! s: P0 j/ w& p% Z8 }. k! k. I
poll-class* |3 |1 ~- P# O* j
8 T: Y( L: Q8 W# y) I- k
setup-plots- v/ p, h1 r. z3 j: w b% C( D3 |
! ~5 I+ c) [" Y7 s, Gdo-plots
3 ~0 {0 I3 B/ u, fend, W* w- V6 D3 c" H8 N- p
# i# F% P1 ^) ?( }- S- [to initialize-settings4 M4 G* Z6 D- o
4 y# ^4 E6 v a+ y% k( n* _, ?set global-reputation-list []$ J* N! W) [; Y8 g
$ V& k0 G% b6 S
set credibility-list n-values people [0.5]
' a( o8 r! M3 G0 M9 \8 D- f9 u/ M- {% [2 i9 i, ?
set honest-service 04 g/ F P4 ~' J; X3 z& D1 a
_1 ?+ a1 j- ^: Z& e6 z7 p
set unhonest-service 0. T& [. B. J! a2 R& [) i
4 G [4 w6 B y5 U3 gset oscillation 0$ @) J6 ^ |$ l w
! G* Z+ @- p7 ]7 Y1 Qset rand-dynamic 0- F# v5 {, t: i$ ]
end; S* L- V$ r2 A) J4 h: ?% @6 ^
, Q7 ^# S4 K F {1 ? A; W( ito setup-turtles : c$ }' v% r/ H6 E
set shape "person"7 _8 V$ U) y2 @ z- Z) D* C, C1 K
setxy random-xcor random-ycor
0 F6 D/ p0 ^- r& B: u& V% xset trade-record-one []
" Q" O) Y& E0 ]( F* X* K' _4 B2 U: ]) ^
set trade-record-all n-values people [(list (? + 1) 0 0)] * ~; J/ Q; t: z+ ^! q
7 a$ _4 P' E* D4 R1 E! ]* iset trade-record-current []3 k5 w, B; B }) u# R7 K) S
set credibility-receive []
9 O. T& X6 i0 E' \9 v1 Z( P. Cset local-reputation 0.5
n' J+ Q1 d, j4 X2 ~0 Mset neighbor-total 04 y6 g$ o+ C* k# m
set trade-times-total 0
: g7 g* m; w6 U+ k. o3 i ?set trade-money-total 0$ j3 i2 y. n' l$ C$ q
set customer nobody
% f! @) O! Y+ w& H; qset credibility-all n-values people [creat-credibility]" t, k6 k& r2 U' m' E/ |% j
set credibility n-values people [-1]
' u! K- `) _% G: oget-color# K) y" Y! C8 s. k. v
4 ]. U6 W& o+ n& d# v2 [/ c
end
; ]1 c; r# s7 E4 I( |+ j' d, b2 S U# Q7 Q
to-report creat-credibility7 ]; G0 m8 Z* o9 r$ ~% o
report n-values people [0.5]
/ X8 t' F& V) kend8 r& s3 l- Q: x6 J
0 j6 e0 e- O- m+ q% \to setup-plots8 n) V# s/ G8 T7 L* \
! e, V6 R9 q$ ~! B' |1 x3 n6 h$ R
set xmax 305 R, R. E, R5 r; t8 f k
& Q: |9 U- x/ Z( r @% N; n$ y
set ymax 1.0
8 p ^: p( w$ c: H
2 h/ x1 Q, }( ?- a; Zclear-all-plots" l1 g2 X! B, Q e
3 n% j, p/ N, Z" j5 _8 w( J7 Gsetup-plot1
# r) \ I' F5 a# `
9 r$ `% N5 N* xsetup-plot2
0 N& M/ J3 R! w: V
S0 b- p: f7 Q! n8 w5 Lsetup-plot3$ |! q# J. O& O/ o
end7 ?/ t, ]1 `! E* C( w
* j) l; |' S9 k8 Q3 ]
;;run time procedures
( }2 t% |+ r8 Z9 s& E+ F1 K/ Z9 }. E2 \5 V9 Q, i7 z/ Q
to go, [% }+ i O" ]& o0 ?8 E6 }% y# y
) ~3 G0 c y7 e9 j& g
ask turtles [do-business]$ {, @3 n/ |. p' T2 ]
end) S. m; j$ J0 A3 X3 q. [
5 _1 } G( z& ]$ c
to do-business
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* t8 Q. s) \/ k r/ K7 x& h' ^6 R o5 I
rt random 360
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0 N$ `+ [# C; d/ y% F6 Nfd 1
& }" P8 \8 Q3 _8 Y% g9 R
, f9 x5 b' E) Y1 Q0 W$ |0 W: hifelse(other turtles-here != nobody)[/ O" I$ s$ I7 k/ J/ M0 k9 r# V
+ J. L9 T+ f9 B4 o8 O& W# nset customer one-of other turtles-here
( `6 B3 c N# A. N# U# e' n3 z# r- u
;; set [customer] of customer myself
+ |8 o4 f U+ t; z2 {! X
2 _ a: Z9 [# P6 D0 I& gset [trade-record-one] of self item (([who] of customer) - 1)8 }$ E% L, n, y5 \: ~$ z
[trade-record-all]of self, }4 [" ]. W# P1 `6 T! C0 L
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 l( N' i% L4 M4 F
2 E% u3 x, q7 o8 V( [
set [trade-record-one] of customer item (([who] of self) - 1)
# |2 s6 d6 z8 B+ f& T[trade-record-all]of customer) l$ ?4 S, N" s7 m: \5 ?
- z: E, d* t. m+ f/ n
set [trade-record-one-len] of self length [trade-record-one] of self; [+ s9 F0 I" @
$ T8 z. j; P4 t E$ X; L$ w- dset trade-record-current( list (timer) (random money-upper-limit))
- w; R5 h* }7 D0 X+ l3 l8 A4 h6 k! f4 o8 f! G! H
ask self [do-trust]
) e$ O3 @' F; o8 [' [;;先求i对j的信任度
7 \+ l+ v+ z0 k. j }' h8 _! ` q+ V' }
if ([trust-ok] of self)+ t! q1 C& s f6 o" l
;;根据i对j的信任度来决定是否与j进行交易[
7 d+ a. `' k) y8 x' H; j0 Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 z& ^3 J- _5 ~# E4 F0 v1 o2 Z7 O0 u; ~8 C/ |7 N1 ~; m
[# n# Y# h/ k, a u/ K; o
% a0 S; N+ u+ Kdo-trade
" b$ c+ R& c+ N/ J* @( C a
9 ?4 F! L" i. Y$ D% V5 q* _update-credibility-ijl
7 `, ]4 f. w9 [7 n/ O9 T! S4 o- a% \1 l3 K. c
update-credibility-list
& k/ \* d. G, I' _) j3 C. j4 a, P$ M, r) v7 B- g
! u( p$ B3 }$ \( t% m# g% Aupdate-global-reputation-list; |7 M9 J* A: h: |* H& N6 d* c
/ R: W6 D+ k' K+ T) Mpoll-class/ v) M4 B6 I, ~$ Y. v% k' k
" \. j9 K1 c& w1 @+ H
get-color+ M2 G5 P5 k% G z% w, y3 S5 P1 y
$ S& Y: y* Z" B- G
]]
/ g D, d/ f5 N9 |
0 n* q6 D: S; s1 G& p;;如果所得的信任度满足条件,则进行交易
, b* ^. [5 L; p5 x* ` E! U$ m; p/ r" q8 J, l5 J
[
) _. s- A* n* X, V. [, Q8 u
8 q7 q4 ? d' w' Irt random 360
& r- f1 s- f$ g. u0 x( M5 z5 `8 a
2 A6 q: |5 K }$ O# [: m; m3 Z( l. Qfd 1/ E$ j8 \% f8 T$ L! V' R4 x; o
2 R$ m5 X% L! A4 o& K5 |
]* w$ `+ G7 ^7 K1 ]- J" ~
% Z2 V! g$ O) x h9 Wend, k, O# F% a+ ?
9 c6 h4 n8 h8 S: K1 x& Zto do-trust
; y" e+ ?8 ~. L- Z& O- D7 r" iset trust-ok False- n" N# {% f1 Y' f
( T: K3 s0 z7 u" d! i& y: S) e& y$ w" R# S5 Q
let max-trade-times 0
# N5 ^$ O% A% o: ? `+ Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 m, K" |& R: S; m" Y! e: B2 v& Hlet max-trade-money 0
+ x7 m. t, X H. ~, Mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" O3 {: Z& t9 U5 D* E9 U$ vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% S X# ~$ F& v1 U7 F" x# n. @1 h$ G
- l5 k; H+ \6 k7 |$ A5 Y: ?' f
get-global-proportion% p% i ?2 r. J4 i5 z% T8 w [7 ]
let trust-value
2 R" c5 F* d2 _8 {6 o# tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)# M z* p; Y5 a$ ]; q. T/ i
if(trust-value > trade-trust-value)
- H$ O0 \- n4 f( q; Y" ?0 b I[set trust-ok true]5 S' J& b, T7 Y4 _
end2 Z6 p6 S9 J- }
1 f, Z. `2 c4 j/ E* ]# d% M/ U' Pto get-global-proportion% E' F3 H' e8 s3 T" w
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), [4 j+ |. O6 Y" [( |8 U1 e; J
[set global-proportion 0]4 T; t6 A# _; D/ L
[let i 0
; ]: n) z4 ]0 G2 Slet sum-money 0
$ [% V3 D$ b* B9 b/ Cwhile[ i < people]+ E1 F9 y7 r5 } u) ^
[
* }; k( `) t# N$ o* H% J; [2 jif( length (item i
* I; m. p/ U6 ~- C$ i' k1 @[trade-record-all] of customer) > 3 )
) F1 t& L7 i& D; ?[6 K! \5 ]1 ?/ R6 T: e2 X5 G+ `7 m4 M
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. F$ K( k. p! @& p], n- N3 t7 G; n0 t* U
]5 d0 c. T, \$ J
let j 0* d2 g" I! }0 x' S5 g
let note 0# ]1 g0 Q6 A1 x, W& K6 g
while[ j < people]
4 J4 x# @* D3 x g0 U1 ~) P* r; l[& E& y1 a- g/ w% g2 T
if( length (item i/ c0 J: r4 e# p! v- U
[trade-record-all] of customer) > 3 )
, @8 A6 T6 K! R' a C G0 ^[
7 t" w4 _6 t0 O3 z3 o: ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). a6 c$ `8 F8 e) L- ^6 T" }3 {
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ y. K4 d# v% c d) ]
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ _3 N. o# o# C$ `
]$ v- e5 c' z; W+ \! X
]. w- L' l d4 ^' H
set global-proportion note
. ]1 M' u4 g: Z7 |1 u]
/ B2 E1 d$ L' c8 U3 Nend
: {. s- [4 q' N V1 J- a$ l+ ]4 R, |& Z* M- {5 h6 q4 Z: r
to do-trade1 v. B. l9 G+ y
;;这个过程实际上是给双方作出评价的过程
) f& o* N/ a8 _6 D8 `. P3 Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* p9 q+ m: ?+ e9 Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 E8 |- |7 [0 D: |6 I- a" d
set trade-record-current lput(timer) trade-record-current; h- V8 C4 w7 {+ L- ^0 \0 R
;;评价时间( i* y }6 O. }) a' a
ask myself [- r, ~ Q% b3 K/ ~( e. x
update-local-reputation
3 Q( D$ |3 f4 Q8 p8 q) Mset trade-record-current lput([local-reputation] of myself) trade-record-current9 w$ }. r7 @( h9 t
]" M B+ \8 P* I! q, Y0 Z: W' H6 {
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 N( U( J4 A' N) g! b/ b' @
;;将此次交易的记录加入到trade-record-one中' w4 r! m* D; Y6 s% r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; |2 x2 P6 p/ |let note (item 2 trade-record-current )
( U' [! G7 s0 W: E8 s& ~: ~' qset trade-record-current L5 K8 }* b/ L3 g/ R
(replace-item 2 trade-record-current (item 3 trade-record-current)): N8 E0 O$ {) X# T: u$ G
set trade-record-current
3 _% Q+ A& }' Y& D(replace-item 3 trade-record-current note)
]5 L9 ~ q; |1 {$ C5 U5 _3 h" I7 V/ K4 w0 Y5 \
$ o9 Q7 g6 y( c# {- n9 f2 j: eask customer [
- P1 \7 e$ e; L1 B. U( l2 x, I$ ^5 Gupdate-local-reputation
4 c" L+ ^! w( q. i3 T: P4 Xset trade-record-current% x# m0 y7 J% g, Z4 f* {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . Z6 _" O& p& X9 c
]
" {. p+ V# |6 n2 G! X4 J
Q9 C& ]. e0 P; `* \! I* u. J$ n% R k! I$ F' u* b7 T; A% E
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 \7 y5 ~0 y# Z; [0 y/ Z2 t1 }9 f! H6 c) E" n, P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( b/ ^/ d4 J: w2 C4 @7 l& K
;;将此次交易的记录加入到customer的trade-record-all中7 t& D. R- x( H( h3 _/ b( V: e' u
end
0 u* s5 z, H1 h1 _* E- T0 O5 Q' U; W! Q9 n
to update-local-reputation% @/ p" D5 Q! m' _! |" ?% J
set [trade-record-one-len] of myself length [trade-record-one] of myself& O! J1 p! Z( B& ^, u/ |' ]6 K
6 v' I+ s+ m, E. I) g7 |
/ r6 ?9 a0 H! R+ d- |! F- [# J
;;if [trade-record-one-len] of myself > 3 ) [) |0 l9 b' Z6 }. A' e1 |
update-neighbor-total
8 X" d1 ~% i" X) ?;;更新邻居节点的数目,在此进行* m, J. w4 Q x- b/ s/ p: p8 u
let i 3
2 v) c6 J" a& @3 i$ `( Y2 R* q" H8 elet sum-time 0
- V1 N8 r1 W; N: m+ f3 s, E5 Mwhile[i < [trade-record-one-len] of myself]
- x- j; N2 k9 X& y& p+ r4 N5 d[3 d6 g. _ ?+ a0 ?- g; |# c# i* _
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 @1 B$ d( Y, s# ~& ^
set i
" D+ w v$ |# M7 a* H0 n, \( i + 1)
( N$ y5 B1 l- L: E]
6 {& ]0 J) o0 ?let j 3) N$ d4 ?7 Z7 ]4 Q/ R2 W
let sum-money 0' j: ^- |/ W- `% V) C% d0 [) ]
while[j < [trade-record-one-len] of myself]
& q( T! I, C# }, H[
( D; I) s, B5 }. ]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): ]7 y/ w) E' Z( N
set j2 d. z6 G# c4 ?5 Z. r# \; ]
( j + 1)* }4 a7 R' L4 l; H4 ~8 I' B
]& R' n \% X; @. I# t* H0 k7 F
let k 3
0 V) y/ ^5 G1 o7 s3 Zlet power 0 r3 I5 }6 L( N5 m q" D
let local 0
y& A0 [ F+ V2 h0 m Ywhile [k <[trade-record-one-len] of myself]+ ~- R8 U. z8 Q( t9 L. j' t
[
! }2 _* v* L, D/ G0 s0 [6 I5 wset 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)
0 g! i# N6 A$ ~& E6 D9 Qset k (k + 1)* J9 U6 n) s2 V3 l# T
]* q @9 x: D7 o2 H- h
set [local-reputation] of myself (local)
7 D' g3 `3 V3 w) j4 M# Mend
: [8 P7 c) `8 @, d0 K# i" Q, G: s$ { d. G6 ^" F
to update-neighbor-total- X. l( @) l+ a$ q! \* x) I7 b
1 {* s# p1 n5 D6 v+ {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" X8 t0 S' T( L1 z2 ^& P5 W+ R0 `' E$ q' c% O# B5 g# D
1 N6 G" ~0 J' W$ o
end
; K6 B8 _0 N% e: k# ~$ T/ p7 ~" b5 f: a3 M
to update-credibility-ijl 7 U! o0 ^+ o% o* H" {$ _1 a( \2 j
+ o6 J: _4 z+ g% N1 d# x0 E;;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。+ Z/ L4 C: P6 x# k, {
let l 0; g$ l& ~4 \! x- ~8 V; {/ E
while[ l < people ]# g. K1 g5 W, d% I1 N
;;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9 a; b5 x* o: x& g0 T
[7 J9 R" G9 o% G1 a8 Y. D
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) V$ ]7 F9 [, e1 ]
if (trade-record-one-j-l-len > 3)
N! {5 I4 Y3 T7 ?7 [[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- h" K8 k5 [3 X" O' o4 L
let i 3; h C2 ^; o$ S4 y
let sum-time 0 F, E, v7 p0 R' O1 `6 X* B
while[i < trade-record-one-len]5 y! B C8 a' @( Z
[9 X- |9 I4 w. O2 \7 a0 X X, v% [) s
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 ~- T9 z9 n* l1 P8 H) a6 ]
set i2 {- E5 I- Y' _8 @+ ]
( i + 1)! h. F4 B8 Z6 n% x& Q5 G
]4 L/ X* z1 l, A9 q
let credibility-i-j-l 0
5 z! R+ f7 }+ x3 L. e;;i评价(j对jl的评价)
! U, l+ Q5 l& _% H' M9 F# Wlet j 3
: o. o. v" S1 z5 X1 [% {4 ilet k 4
; G) }$ H6 X9 Y7 o, ]) cwhile[j < trade-record-one-len]
% Z! u8 |4 w. \4 a, _( a& s[3 r) [& ?; l! b8 ~& k- r' `% y1 F
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8 x4 t0 k/ a1 t
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)! B' H, ]/ f) K; \, n$ u
set j
+ N2 X b" c$ Q; m* X( j + 1)
: u' O7 |7 s# E( b& l( j( T) ~] ]9 H! m5 }0 A, P
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 ))0 U. Y/ p& l0 \9 B b
: f/ O% n) z. ^, ]/ j
: a9 t r( u) o& ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; A x% V% B- q# b6 }2 v6 C; `+ U0 y;;及时更新i对l的评价质量的评价# F3 X2 h: N% f! A" B% V
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" u( s; m8 \. |# A9 L+ b, p* ?( K" c
set l (l + 1)
4 M" j: ?) q; X: W8 H]
/ w) G4 x1 m! m3 lend
8 D" P) q, `* J$ C& f4 t/ Y1 ?, h9 \& z- M5 D* y0 r" H3 _3 S
to update-credibility-list
. h- M- C1 |$ }' V2 a+ Qlet i 0
! a' v1 F) I! n7 v6 H. l8 w5 Dwhile[i < people]
- a8 y. u0 s1 ~[* d! \" p9 m& w- W
let j 0- u9 e+ B! {9 _
let note 0: G3 W+ N( |: |0 r' M: g
let k 0
( T+ i0 l+ ^7 n$ D. ?: }2 i! @: b( P;;计作出过评价的邻居节点的数目
, W8 C1 M3 |; J# u+ Ewhile[j < people]% k' r+ g9 B2 V; u5 c+ H6 h
[
4 E8 w5 l. f% A7 `$ M) }if (item j( [credibility] of turtle (i + 1)) != -1)
& a- i [) x- X$ C;;判断是否给本turtle的评价质量做出过评价的节点- e$ Y! X3 Q4 _2 H* g
[set note (note + item j ([credibility]of turtle (i + 1)))1 r) v: Y% U4 L* J, P, [* t8 I1 ^
;;*(exp (-(people - 2)))/(people - 2))]
4 j3 U T) W2 xset k (k + 1)
5 Z* K, s8 x% A# e# b/ j+ |]
; y8 K. \0 c4 U5 J) m, h: ]set j (j + 1): ?7 A0 F, V) O6 y$ P
]
1 s) g+ r9 A: b+ Vset note (note *(exp (- (1 / k)))/ k)
6 v0 Q1 @8 e X' K& wset credibility-list (replace-item i credibility-list note)
9 L* }8 p' {( Z$ G% Dset i (i + 1)
' V9 {$ I7 j' V! R" []0 {$ b* B% z) Y' {- H7 f# t9 l
end
# y5 \! y; a/ E) ^* `2 s1 e: }* D9 t. G; J0 |7 T& A
to update-global-reputation-list
Q6 r6 K* T# Z) u, jlet j 00 |7 \9 i* o; z7 a, }* c' a
while[j < people]3 Q- X% j* T' x9 l8 k, l; s: N+ O+ {
[
& Z4 q; G' d! ylet new 03 l3 K# a: G: p R4 R& D
;;暂存新的一个全局声誉3 Q2 @+ {/ A) Y9 q/ I
let i 0
0 {4 f, h" q* z" llet sum-money 09 X$ K- y4 Q. y4 n' O! Z2 @
let credibility-money 08 t( c# o8 H/ \9 L7 P( u! l
while [i < people]6 F3 P, x1 F& h* g& C* v
[6 L: {7 n' @& A
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ x6 N4 z. ]+ l+ j' P+ `5 w
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 @& E3 S+ E% B i+ n6 R- t9 Uset i (i + 1)
" o. t- e f( d' l& @3 T! s]# K# J& C) ?0 n. P
let k 0! h! E' `" }8 v3 d
let new1 0
* u0 G9 W( q6 iwhile [k < people]
3 J/ K9 H7 y7 i" J# F' w[
: T( M& J3 A/ H; p& s4 ?5 q% Mset 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)
S/ I, c; D1 ]' Q4 H" R, `+ iset k (k + 1)
6 W$ _+ D* [ ^, s4 @/ h]
* j% p! A6 Z/ s" bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) i R! g3 O8 ~% L, M9 l4 [, @
set global-reputation-list (replace-item j global-reputation-list new)
, I9 h# s+ g& k5 kset j (j + 1)$ t( z9 ~# W4 h: z& n5 Z
]
/ R2 ]( J T& G4 _- tend G1 C8 s8 @; q9 j x/ l
% o/ Y5 k9 A; g' j1 _4 u, R1 N1 K# O! k/ X% I6 [
: F- Z0 P1 D3 S4 b2 f5 g& `to get-color
$ c! s b7 V( ]/ ]2 w6 ^4 g' U; b: n. ^5 D% C/ L/ v, G2 V; l# c
set color blue5 S; m8 |" O% O; g# a8 l
end
4 X4 _' @2 ]8 C7 K3 D# b8 N' _# Y5 l S1 J1 U: i' r
to poll-class+ L* p8 ?* J% f
end9 {9 p, m. o. b" B: N1 S* a4 _
, Y+ M3 ~3 X% m- ?9 M8 `3 K3 L) bto setup-plot1% J' I9 g' L. i6 _
3 O! }$ H8 `5 U3 {3 sset-current-plot "Trends-of-Local-reputation" z0 M+ t3 }* t4 K
# v9 _' ]1 }9 C8 @) aset-plot-x-range 0 xmax
; ^8 Y( \3 ?. }% y7 l& }3 T: Z- E/ ~+ k# B
set-plot-y-range 0.0 ymax
: @5 L7 N: Y$ Y7 D8 j# Y: a0 ?end/ r6 w% Y) `3 z: d
( b" e! ^: ]! K- l& d4 j
to setup-plot2; V6 [" I# x7 C9 ?
; N7 _5 b V+ h# S- ?( uset-current-plot "Trends-of-global-reputation") \& i( G1 U9 G F
: F% j- _7 v2 u- t$ t2 {! \. _
set-plot-x-range 0 xmax& ^1 x3 s+ L" v2 v4 Z. ^
# ^# b8 a- B0 u1 Gset-plot-y-range 0.0 ymax0 X3 I( w: S# K' r" p9 M2 B- p- P! k
end, K8 x6 E$ a6 Q
. o* a# E8 @( N% \6 \: {
to setup-plot3
3 |2 Y7 Z3 G0 c% O) _6 ~" j6 T$ k2 j! N1 d7 n: f
set-current-plot "Trends-of-credibility": r% B7 A7 Z1 j4 H3 @" w
( S1 O) g$ q0 _& H. E B# O) B
set-plot-x-range 0 xmax; i- E' T: t- n
9 T- B" y% P# Y7 J2 wset-plot-y-range 0.0 ymax) ^0 D& ~- a9 r1 V7 ~
end. r* M4 @' [8 T% \ _' ^9 H
& Q! F; _! [) e. o* n! Q+ r' l6 }( Bto do-plots/ A; R! c! x0 P8 w
set-current-plot "Trends-of-Local-reputation"
9 f3 l& C) g# e, C3 Z$ g0 Kset-current-plot-pen "Honest service"
# H% a' u+ |4 u& X5 @end! @" T* c( G% p& b( y2 I
$ d: w7 c6 x$ y$ W: V- ?
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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