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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0 q( l* X& O9 o0 E
globals[
# P* j2 [6 V1 a) mxmax: w& `. v$ h; {5 W" I2 C
ymax8 r: H ^: O/ W/ P0 p0 n
global-reputation-list0 i6 h) q) ]% V- A. o6 j R
3 v/ ^1 ^0 j. f( l, p% K& S;;每一个turtle的全局声誉都存在此LIST中5 c( K% l; R) @5 u
credibility-list
/ k% e7 e+ N) j;;每一个turtle的评价可信度$ h* j. G# E' R- N0 O- o1 I
honest-service
! o5 z' s- ~' Z& Cunhonest-service
+ t2 i, W/ x! C* Boscillation' H7 n. a1 _$ C& T# d+ }
rand-dynamic, c P8 {% @/ z& m) S) y% P
]& u% G- S/ c& w
/ W* D6 x1 o; k3 |9 U$ N5 Jturtles-own[
/ _% v! D$ n3 I }( Etrade-record-all
: I; O* r6 l5 G) r6 R;;a list of lists,由trade-record-one组成
8 @8 I- }* ^) o- P1 strade-record-one/ m$ E5 \" A1 ` {8 E& Y$ 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
7 ?; F. P8 p- [% b ] F' `* I+ A0 e' A7 A
;;[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]]
: X6 h- u l, x$ t' {, W% m$ atrade-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]; Z& A% w5 f$ g8 a
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
K) }! ^1 V! k+ A! ?! g- Kneighbor-total* W; |. }& |, _; z" `. e/ x6 k
;;记录该turtle的邻居节点的数目. s) K, B0 l2 Y/ Y- w. Z! |. w* A" k
trade-time
* d/ Q4 C2 W& _) A% _;;当前发生交易的turtle的交易时间' d* a. q' J- `
appraise-give- S2 M( ]: a1 l' U) \
;;当前发生交易时给出的评价
! f* ~. H7 W9 P: Tappraise-receive; j2 {' R% Q% G3 J( h0 v
;;当前发生交易时收到的评价4 K5 l9 C" w# O; V
appraise-time
' R: J& e7 {- {;;当前发生交易时的评价时间; [; i9 @' m a& y6 n3 ]
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 ]0 V7 B; z! M/ ?5 V
trade-times-total
5 K7 a/ e" Y# S' g# M1 M- H% U7 }' F7 `;;与当前turtle的交易总次数5 n% g9 U- G3 Z" W- `3 n8 k
trade-money-total
9 u9 N8 L k/ O' {, `;;与当前turtle的交易总金额
% Z$ j8 a: g# t |5 @; v+ Llocal-reputation
( m( e' f2 q& |& p& _global-reputation/ E# u+ K( n; A- Z- D) f0 e9 [
credibility7 y! K9 D( b/ w- l7 a
;;评价可信度,每次交易后都需要更新& |$ |0 \+ M5 X9 T, }' G: Q5 g
credibility-all
/ E& t0 b- f. k% Z9 n, T;;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1 R. u ^. o7 I' r5 ?; J* O& L1 y
# x9 W5 c5 t) L3 C. s' v1 g: 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
% _; } @4 a ~+ e0 l7 o6 ?credibility-one
" u5 W% V' a2 S/ k6 m D;;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
$ w/ q. C$ p& R aglobal-proportion. B8 k7 Y3 c. g0 }6 e
customer1 n q* y4 q! H5 l; w( h6 L% X l
customer-no
# n- U, b8 y3 ?' T- j7 ltrust-ok; y6 H% r- i7 B- L+ s
trade-record-one-len;;trade-record-one的长度
! A2 b3 S- |. ?2 |]
. }7 t, n8 N; z3 O: M% N/ j2 p0 @. v n2 r
;;setup procedure P# e; G% v& u7 d# q
8 i+ s6 N. F- J* ?
to setup' k3 S& A. B; A; q# m* g/ s
0 F( k7 g, G; y4 [; P- l* pca# h7 E; P" S6 E* b- H L
. k* ?1 C+ b0 f3 _( \6 O& Uinitialize-settings0 K' n( a8 |& t( S) N
& c! n# q3 E. M4 I6 g. U
crt people [setup-turtles]
3 ~& \1 K4 h. J9 g& n/ H7 U$ Q- L- D: l% C/ [' {4 T1 E a3 Q
reset-timer& J- @5 i5 y2 M4 x" ~
& j" F5 p8 c" ~poll-class3 F) t7 I) z' i4 R
, L0 p. M5 B& f$ q
setup-plots/ t3 ^) x/ [5 u8 v: x0 O# {
. \4 U) J! o9 _0 i5 a/ Xdo-plots% H6 |; M6 V8 ]( K( D/ Q1 e
end- g* P* @2 V# Z# t' ]& R+ A
9 l% Z- g* Z+ F' u
to initialize-settings
* \, d' h/ K& B+ J+ _- ~2 c1 O2 ~$ }6 q8 M& f( f/ l3 v
set global-reputation-list []( z b: U6 z7 B& d1 K2 U+ k
) F7 s* d2 q* P, b, eset credibility-list n-values people [0.5]
$ j/ U: q7 V" x; U) J2 M# T& r% \9 Q; _* J6 d% \( R
set honest-service 0
' M. ^: }% w: e1 T
6 n7 a& G7 ~ t5 q1 hset unhonest-service 0
/ E8 l1 { G$ t4 U# {6 ^2 b# s; j! u! J0 ~( j
set oscillation 0
+ m2 k d4 q2 w8 y( ~$ ]' w2 G# O+ L6 C- k
set rand-dynamic 0) o5 x: {* l1 r0 A# m% V
end
: \ |' r& N# N9 y
! Z5 C. f3 |5 uto setup-turtles
3 b7 z# T1 D9 Z* Eset shape "person"' V3 D( J2 r( o& r W, j% `
setxy random-xcor random-ycor
% z6 \& k& d/ Z4 u& N( Wset trade-record-one []: n7 K: D# t( t: U5 T
* ]3 W1 p, m- g0 o& J* d2 |set trade-record-all n-values people [(list (? + 1) 0 0)]
! C/ {+ _' H+ q; f1 X" l% r t' G* h$ M1 e: C7 R! z; I' E; k
set trade-record-current [] Q; n: ^8 g! w( l! h
set credibility-receive []) k( R1 c% a( }* B
set local-reputation 0.5
0 L, E7 V- [. D0 s- f9 e! B3 K1 sset neighbor-total 03 L2 i. L1 U; s D& ^3 U4 k' h3 c
set trade-times-total 0
; h& _0 R. l2 @' _3 i5 G! c& Hset trade-money-total 04 T U7 ^, s: j+ p! ?
set customer nobody
, n9 ]5 L4 C" L) l& Fset credibility-all n-values people [creat-credibility]+ M7 D4 R$ m' ~& H- e8 X2 V1 z
set credibility n-values people [-1]
; T6 L! W0 T- q5 s: f. bget-color ~" Q4 _8 k L! ?& o
$ H) m# \ q$ Y2 }* t
end
9 |! H6 l$ I0 S' D
1 q9 L6 ^$ Q- t2 x- c! a* ~& wto-report creat-credibility8 }& s3 U% N5 [" t) x
report n-values people [0.5]
4 E+ Z, m; [! R" a; m3 G9 @+ Qend b9 K- E% F3 B8 Y
2 D- p# g1 a% w2 r- u7 Bto setup-plots
2 t0 \! w% j7 r ~ d+ I6 B: i/ Y7 j/ F \
set xmax 301 P' s8 G2 n$ P* O# I( }
6 f6 E! |6 r$ H9 V; l/ o7 wset ymax 1.0% }5 I, q" W' h" u8 N$ }
5 R( X5 G8 c, v( U3 d- Fclear-all-plots9 P, \4 R$ T- ^7 x& s0 g
' Y" L6 O" q& i5 a5 q6 a f0 |9 tsetup-plot1
5 c/ F9 W2 l* E1 g7 _7 g+ j6 p% ]3 `! g( d$ E
setup-plot2
) b) b! F$ s" ^( x3 V1 N
# V3 z/ j8 h0 W9 t& y* I8 w$ }setup-plot3% Q/ `! y- g; X
end
2 S, v. }. L7 f) P [$ u5 D
4 v4 u! `: Z6 F2 w8 K;;run time procedures! B* j4 V! A- a# k
; U; a- c2 t; j
to go8 `7 E# o$ p+ X* Z
( g' ?" H3 U; ?0 v$ V" B
ask turtles [do-business]" k3 e- m9 f2 r) R
end
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to do-business
4 l9 {/ B( L' w# I1 }) U9 Y
* |0 v/ T Q1 X/ P/ Z
6 F9 {0 _* C; u2 f8 Rrt random 360
, i# P. m8 Q \' |8 h: ]0 N9 Y0 {6 _2 o6 D. Y R* d ]
fd 1. [! d8 G9 Q a }; h
; o# [# {5 H" K3 ?" Difelse(other turtles-here != nobody)[
8 t4 v8 S: w+ W8 Z$ Q+ q/ k' S, Q6 J/ R; M; \
set customer one-of other turtles-here& ]( t* m/ c s$ W* V& J
$ d5 R2 M( S& M0 w# f" t;; set [customer] of customer myself0 E) A. q$ D1 X% {
9 D) n. G) P( k( ~) Q: Dset [trade-record-one] of self item (([who] of customer) - 1)! I( N2 I3 ~: d
[trade-record-all]of self( M1 y, M m$ F# Q" ~/ B9 P& C
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 s+ k' X. y6 z' |6 i
0 e2 g7 _2 h( t4 o1 T6 ?* D( D
set [trade-record-one] of customer item (([who] of self) - 1)* m" Q+ n* a! u' V e& u' R9 l Q
[trade-record-all]of customer. j* Z H2 {0 r, @& p
" U8 |$ I7 S' N2 E) X# z3 Rset [trade-record-one-len] of self length [trade-record-one] of self
8 k, U, f+ \6 N7 j3 m5 X0 q3 J; S5 h; H5 `* ~! a. U$ A( m4 _
set trade-record-current( list (timer) (random money-upper-limit))
; w) @' n' a# M; F& \0 i* a+ c! ~3 w3 |! v1 Q- ?* a1 O
ask self [do-trust]
+ q1 x7 |- [0 I: H/ J! m& m;;先求i对j的信任度
`% D7 Z0 |- ^) A% a% v: `. X" V F& K
if ([trust-ok] of self). u: i9 i2 R% m+ X
;;根据i对j的信任度来决定是否与j进行交易[
7 Q: a+ W# Q5 l. Z$ u- vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 ]$ u# \( ~' z! }4 H8 F2 k9 C8 ~1 _
[" e' A: n3 ^2 O2 }* d6 L; W
/ u1 i' N( R; F
do-trade
+ |5 J0 ?# T+ i
8 p5 L/ G- i+ f# Y8 |1 t/ @" Q# [! Dupdate-credibility-ijl
; t4 W* Y- P! K5 C- T6 _2 o* {* l7 g% L
update-credibility-list
( i. X/ P) S, y( E# Y# u5 }( y
: Y& P. q! L% j: Q; E
. z% a' b3 F! l7 p# a5 \# ^% Tupdate-global-reputation-list% ?/ O. U# i, d3 U' ~& L8 e( l! ?9 s
4 m$ b, `1 z- e; q. G) x) G
poll-class/ ~+ N$ Q# L4 X/ n2 s9 l
, E" ~: p2 {8 d* n5 Z
get-color* Y" q) \$ g! d7 Y/ x
! C5 L! C7 v) o) N8 R& ]! G]]
7 N" i# u( z1 C& v2 x3 J! t i, B ^% C
;;如果所得的信任度满足条件,则进行交易, `3 f" [* G' u7 h4 l" M
5 V- _7 n$ O* g5 [% M6 M$ u[
* {$ j* Z' e$ ]& l9 G( V$ J+ ~' D( I: q" a9 a& F2 n
rt random 3601 _, \) l& N$ N
! _3 P# Q; d; R5 f* t
fd 16 C- X. t0 S7 q) \ A6 H/ c) P
6 x& o: e ~5 P/ n: q& S6 ]
]
& n/ s t7 Z, K6 R& u: h' S" H4 e3 {! f5 I( u
end4 Z. U7 f: C5 v H* S1 f- F
' q2 x8 g& P/ o6 p1 x+ W
to do-trust
; V2 b( f' Q3 d* tset trust-ok False/ r" ]5 R( Q) d
6 K2 s9 K4 R6 `) v2 a5 v, D: D
. X, C9 h- i1 s* K' l! slet max-trade-times 0
' M& c$ ~' F3 P! b9 Y- Cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) `# d, @8 R8 W
let max-trade-money 0
! E0 k3 _$ y& bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; w6 z- _1 h7 r3 @8 T$ Vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 f! z q' c- ]; `) A
1 ^' }) G" J( s6 W
7 P" a9 p: M2 l2 e* ]/ C
get-global-proportion; C, ] z9 x4 {- X$ Z
let trust-value1 ?! J% S+ u) g. D
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)
0 O9 D8 C2 F- J7 R2 R7 J& a- `if(trust-value > trade-trust-value)! s+ ~9 R4 `* Z2 t/ [4 |
[set trust-ok true]
! Z- [6 B) ]# }/ `8 x# i5 E2 ~end
# `* Y3 C; I2 L, ~& z% b. B* E. h h/ ^8 L) ~6 Y4 x
to get-global-proportion
' u1 S3 g. e" I/ Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 A6 V4 o# L2 x/ [! x: i$ z[set global-proportion 0]' s8 U" U; Z) p* m. K; g
[let i 0
/ @( A6 F- b' X g0 jlet sum-money 0' y' M3 j' [& p
while[ i < people]
8 X7 U6 D7 O: i7 a- _5 s: y% B7 x: W[
; O; @- Q. D$ C" P$ K& \if( length (item i; G8 D$ K4 F+ t/ R" ^! E3 a; }
[trade-record-all] of customer) > 3 )) c7 d Z9 G$ s' l1 M' m$ }
[4 z% x& r! Q V7 B1 w2 n( n4 {" Z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" u( e4 F k1 W5 M( p6 M- @]4 u, z7 {# W* G* G2 V& G( a2 R% {6 ]/ K
]' v9 p$ u0 _3 I ^7 _
let j 0
6 ?2 C' r( B( a& `- wlet note 0$ O1 b- j; ?$ t7 _' v
while[ j < people]6 @( _) x2 g3 q: t8 C! |6 u
[
5 y. I7 b* ~# ` Yif( length (item i
' O- R" `, ]( r, J" x8 v[trade-record-all] of customer) > 3 )! \' M9 L* T* n+ \+ @
[
6 t5 }: Y. X% j8 _ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 ^% r+ t9 [: H( b; H5 h. n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, y2 z2 p2 u+ h, |% J J* W[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, E' O4 y8 n6 M, z5 l9 w5 B]8 B2 u) o" ^2 f, K& [5 f9 q2 K
]
4 X8 Q6 i( H/ I) Kset global-proportion note
" V, x! J( H/ Q. \5 L]
' R- w2 g5 |) w: l6 Vend. w' R' M. E' [# J0 F) z, l! D
+ {3 T% l$ I2 v! h5 t% t3 E4 c
to do-trade
# C: z O" ~/ P9 X6 _" Q;;这个过程实际上是给双方作出评价的过程
) A6 J/ ?. L7 N' Q- I* |0 v" ]7 E. e0 Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 V: Q* C9 u" A/ K6 d( r7 O$ q0 @* Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" S" T! h9 c& ~4 d$ hset trade-record-current lput(timer) trade-record-current
7 J# s( M- S, L1 V1 p$ O;;评价时间
/ H" i/ W6 ~9 l Pask myself [
, D) X8 a+ m6 F1 ^1 Qupdate-local-reputation
& |; A7 _5 E3 B; ]6 gset trade-record-current lput([local-reputation] of myself) trade-record-current) i" q& @ m; J% Q
] D& s k7 W' }% R$ I! a
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' e% {! l/ o0 O- h8 a4 [+ k! j
;;将此次交易的记录加入到trade-record-one中- `* S- I P, w- u' ]# M# I
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- ^! Z- s1 g# j8 y8 h0 w+ k$ o* llet note (item 2 trade-record-current )
* y' |) E3 N' Z/ U" x3 S: a. Hset trade-record-current
9 E& [1 Y2 w) l0 c! ?(replace-item 2 trade-record-current (item 3 trade-record-current))
8 n- B3 _% o8 g" }* \9 D2 p* a; Jset trade-record-current+ x/ B! C6 y9 U0 {2 N8 X, H
(replace-item 3 trade-record-current note)
* O \, j4 i0 _$ J8 X* h
8 E& b2 O# Q2 o6 i* u+ Y' u9 h
' R {. v' g& k' h* I$ J& Oask customer [, N3 f! j" O# J/ S
update-local-reputation
! k3 Z0 ]5 Q8 L% J( K4 Cset trade-record-current2 o5 P& M$ n6 [9 \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; K; v- a; G4 P# Q! h
]
7 U) ~6 q. n: ]1 M
0 m) V2 X" q" y5 Y1 l% J0 A' ?4 p; q$ E. \" \
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 S" C, e' ]8 {/ ]3 @6 O) x5 G! o) v2 \. L% @0 }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): S3 _# G' y/ B% }" [0 M3 b' T" p
;;将此次交易的记录加入到customer的trade-record-all中
+ n" K* ]3 a: r x' Mend
0 p! o- ?* P8 c2 P8 f. L
$ c/ F3 ~' J# H9 h( K+ p$ Y, zto update-local-reputation
# ` d. y- Q+ y" G6 l1 kset [trade-record-one-len] of myself length [trade-record-one] of myself* X0 p+ d# Z4 |8 N" k4 r- {/ \7 ?6 p
: z3 W. Y7 e+ F Y
; d2 ~' b, |0 O8 @;;if [trade-record-one-len] of myself > 3 + Z1 E5 n" d1 ^* ?
update-neighbor-total
+ b! i' A7 n2 Z) R;;更新邻居节点的数目,在此进行' c {; R: a+ x: j5 e1 B- U. T
let i 3
! }% v, @& x% [/ V# o2 mlet sum-time 0
% y6 \5 Y0 d4 Awhile[i < [trade-record-one-len] of myself]9 O7 V1 |3 V0 e) f) w- x0 ]1 }6 B
[$ _2 c* D3 S5 g1 U
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) p# y* Q. r1 `0 S- `! y' H
set i
' l! X8 K0 c+ ` Y7 ^* E: j/ B( i + 1)* r5 K5 T4 Y; J- a
]
* h) E' Q$ Y1 c4 g' hlet j 3
: w& a& b$ x; ^$ n5 J! ulet sum-money 0# e4 J( v/ a- h* N' R
while[j < [trade-record-one-len] of myself]
7 b$ C+ a; j+ M$ Z4 U2 G5 o[
/ [, D" w: b# w) u/ Sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
/ y; w) V- N( v& y& wset j2 G. O1 _. [2 J8 f, v Z7 e4 `/ a
( j + 1)6 a5 N' J" e% W2 `4 j1 j1 \$ S
]
) z5 }) _# y2 f9 B" i. p2 Elet k 3
* t0 O; Y1 R# ]: o( q" Alet power 0, ?* e. m& l& J n- a" c. t' K- L! r- r& a
let local 00 E) P7 ^4 o& w6 ]' u
while [k <[trade-record-one-len] of myself]
' y2 h B; m {7 G9 n0 {9 e[+ ?5 n8 X! M5 _6 n$ R/ @! j
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) 6 z% Z) \5 Z! B! u! l
set k (k + 1)7 C1 J) z6 M6 `: l
]3 ?" ~9 G9 m7 j! Q3 s- e
set [local-reputation] of myself (local)
) ]. n% X2 N Jend
' w9 v- V" b+ U0 h7 N/ Q. s6 F
! N) |& B7 O7 ?! h2 xto update-neighbor-total
' G5 K, |8 w) t. @1 M0 B0 a# Q8 c! Y M( I4 M
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. Q' K: f- D* b& E4 H4 w' X
7 P/ w1 j* j6 O7 \( Q
# a# l: K' t+ t3 _/ |6 ?+ K6 lend/ K: W) [2 {6 d4 C; _
( G0 P/ C5 ]& X8 g) Tto update-credibility-ijl
+ l0 d! w! W2 H, C
, V0 O/ N. t5 S0 T B* D;;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。' K1 i- t5 b$ {5 G6 N F
let l 0/ y+ H- M+ p* H$ W6 J& ~
while[ l < people ]6 P. t% D0 t9 y
;;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. @& x: p% {$ L* b1 b/ i
[9 ?$ A8 \% P2 M' [8 ?
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 A5 f4 k' L! a0 A
if (trade-record-one-j-l-len > 3)7 F# B% u9 u5 C# _
[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-one8 W8 O3 D2 x- q( ?5 O/ E
let i 3: [1 a( n" D1 W" _# H
let sum-time 00 ]# S5 @* ?0 Y; r6 `$ a' \5 F
while[i < trade-record-one-len]
% Q! e& W+ M: M1 j; h/ G[
" C1 ]- e$ w+ F8 f* b- E, _! rset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). R- E R8 v/ i, I/ J) `
set i7 Q- [1 t8 J% K, g8 ?
( i + 1)- t- v p' p# h8 y" o
]7 c) ~# r6 @& b* I- x+ z
let credibility-i-j-l 0% ^, x& ? J1 Y! t3 k2 J
;;i评价(j对jl的评价): L u, k r6 t2 E) p: M6 Y
let j 38 Q. w" s `; p! L" q6 Y, F" P9 A
let k 4
; l. ^1 \" B' Owhile[j < trade-record-one-len]$ L) Q& o$ E1 B
[
X0 H8 v" m3 f$ f6 K, Hwhile [((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
: `" d3 V+ m, e/ t2 }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)$ \; g: o1 U5 U+ a. k2 k
set j% O) t6 x0 H; z+ n: E5 ] Y& f; p
( j + 1)
y% ^/ S$ C# |]
) |0 o7 Z( A. O# g* l1 f- G; g* xset [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% K; t/ K6 s8 s1 P; Q0 F. G$ n
1 m. E( c& K( I9 G1 w% F1 G8 _$ Y1 L& |$ {' k
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ V O' G* B# ]9 ^9 U;;及时更新i对l的评价质量的评价
$ g/ i9 {& R. m3 `, i& |set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* @$ G8 D, z2 a. p1 p4 j2 W$ qset l (l + 1)
$ b6 I* T* F2 _6 Q. p: ~* R0 W]; z. r5 |* g+ ~1 w
end
$ N- Q: v# _+ E% ~3 Z$ U" @8 _4 w0 r
to update-credibility-list
( ~# h Z( O9 e( ^- y. xlet i 0: ?1 n' R: t' M E0 f- P0 q+ U" u
while[i < people], `4 a2 t6 F" J4 n; L, V5 F
[* K1 D! o# F9 p! S
let j 02 `* d. d; F6 P5 C/ b- x
let note 0
1 h1 x9 ^! \# {; x/ {let k 08 ~% c' V0 ?* h4 b$ u1 ~: L
;;计作出过评价的邻居节点的数目
: E5 h1 o: u9 J: r4 Vwhile[j < people]& M- ]7 b+ k8 [/ u3 Y7 o2 D
[
) j9 F' M* }& y* xif (item j( [credibility] of turtle (i + 1)) != -1)1 p V& i5 o: D9 N# ?: f& r+ C
;;判断是否给本turtle的评价质量做出过评价的节点
: W) k: d8 r- s7 n[set note (note + item j ([credibility]of turtle (i + 1)))
7 t& R6 |3 f# o3 f5 M;;*(exp (-(people - 2)))/(people - 2))]
+ p8 F" `6 U* v- Y# oset k (k + 1)
+ X, G0 w- C7 G j1 J0 N, ~]
# A1 V7 y$ O! P7 B xset j (j + 1)
& ^3 g8 q0 Q J, f]( l, K( ~) @5 {+ E* ~8 ?. ]
set note (note *(exp (- (1 / k)))/ k)
. h' J) [/ Z+ M/ Q/ Q4 dset credibility-list (replace-item i credibility-list note)
! f9 q0 S) ]7 f- F. Lset i (i + 1)
" o' E) l7 D3 K8 X]8 q+ W) R( L; k4 }$ m
end" T' ]) e- `3 Y" Z8 |9 ~8 N3 H$ e
9 G1 m9 u p: ~to update-global-reputation-list
# @% C$ q4 ~& e1 R5 Llet j 0, n6 k0 s, k% \) l
while[j < people]
6 @9 e) R5 n, l* e" K9 ^[ S) f, I1 U2 N8 L7 W/ B
let new 0' v! U- x) v) _$ U* N
;;暂存新的一个全局声誉. g$ U* X" V0 _8 I5 Z; I
let i 04 z7 ~5 i7 m2 @& I8 N9 y
let sum-money 0
) F" ^ ^1 K! I: h# W: W( g8 _6 |let credibility-money 0
+ j5 ^. P q/ l: \3 P1 Hwhile [i < people]
5 n+ r4 h- @* }1 n5 F4 R6 u[" N# h2 H) L; s, T
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% n2 S! H/ i- N4 C" c' u$ ~+ |set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ ^4 H& _+ T. Y" f0 s6 G. Dset i (i + 1)
+ s6 g* D8 \+ f! n$ p]8 M5 s3 N- L# u7 _
let k 0
6 H8 x" T8 {* p( glet new1 02 {4 a; x" Q# S' D* ?. e& a6 N
while [k < people]( {, ?* h) `9 ]
[
9 Y# u0 j0 g0 v) D7 z% aset 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 U) @; ]1 f- S/ eset k (k + 1)
6 d# D) R( \) x2 X]
- P; X5 {, J/ e. zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* r# N0 N5 i6 Qset global-reputation-list (replace-item j global-reputation-list new)
+ g) G8 l7 I$ u9 H' ~; Kset j (j + 1)9 E( s5 ?6 O' H$ ~$ b8 C' n
]
6 V& h: @8 \/ H+ bend1 F+ F3 ~& y0 D8 R% Y8 W
* v7 y$ t( x ~7 x
6 N" _- a; h2 d: V) R0 K3 Y( Q
: a6 _) r, F% ~9 Z- p* d pto get-color8 ?1 J" B8 ~0 J/ t; d
) U/ \" h2 n0 m+ u0 o, s
set color blue/ f4 I/ V/ e- z. k0 _
end& ?% P D9 r% C3 Q1 Z5 o
0 [, \5 G( n% s1 H' y
to poll-class1 p$ [+ v2 K2 z0 a
end
( R4 y( I/ K/ g$ w* N$ p# K+ P+ p! f5 c
to setup-plot1
, \3 g, I' S- R" q e" @( u: [8 u- d" C p f* z+ }$ |( {
set-current-plot "Trends-of-Local-reputation"# P5 L- F7 h1 n
" O3 G2 u* f2 Z+ e1 {3 Gset-plot-x-range 0 xmax3 E x% V4 I+ _. D! s- _
4 i4 _! Z+ t9 C; [' R# d2 ~set-plot-y-range 0.0 ymax7 h0 R n L9 [2 c8 k0 T3 Q
end
# Z) H! Y8 G# p* f- `" G' i# I/ k+ p
to setup-plot2+ r" l2 d! M ~ x& U
, d7 u& l% Z( G& X: C4 Z7 A
set-current-plot "Trends-of-global-reputation"
- O$ k; P. S& C& ?* w" Q- W. M8 g: U# u6 c2 Q- F4 L7 V8 r
set-plot-x-range 0 xmax: K* u+ e5 v( E7 z5 H! p, p
) M8 M( o8 J5 X3 t# D4 Z
set-plot-y-range 0.0 ymax2 Y$ h' h5 Q* S: p$ ^9 {
end
4 v; Z% j# v0 |0 V S+ U, ~3 @* z9 \ b2 b
to setup-plot3& U8 R1 H' F3 W% K# E+ G
7 V* n8 R) Z7 {
set-current-plot "Trends-of-credibility"$ k8 U( q4 k" H3 \, s# m2 m
9 B, S* p \5 j1 U$ u; T" k
set-plot-x-range 0 xmax
' @* e( e0 @2 h2 N) e. x+ B
6 `0 N3 d$ `! k: a) qset-plot-y-range 0.0 ymax5 p" V5 _5 P- \. ?! J8 i, z
end
7 @0 L6 l5 K* A4 M& ^+ c! V" t
7 I" G0 M; Q9 q ~to do-plots
+ t! V* E0 K9 t; r% Yset-current-plot "Trends-of-Local-reputation"' T3 e) v# f- [7 r4 ]
set-current-plot-pen "Honest service", z0 B8 J H/ p x4 w3 Y4 Z* N& t ]
end
0 \- {" |' t4 ?# U1 K2 y' L7 K: o5 y2 A. a$ C
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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