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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
4 w) H! z* J" v+ Z' m. lglobals[
' S# T% l2 s+ f' R6 N+ T- d1 Yxmax+ ~. m9 M9 k1 e
ymax( | _' W% v( E) B& I
global-reputation-list
# ^" T+ n- q8 d3 q+ l+ O9 S/ L( b7 x( B, S
;;每一个turtle的全局声誉都存在此LIST中
6 @8 M2 j' W% j7 xcredibility-list; u' l! y* w5 z* \1 a0 ^5 o
;;每一个turtle的评价可信度
9 t( Y7 @ w: H H5 z: dhonest-service
1 Q* P: z6 |+ v4 Y4 d5 eunhonest-service
9 v/ G; Y# P" Z' w. E1 hoscillation6 k2 q! r J. U+ f* d& b
rand-dynamic
( k5 O" @8 {0 t3 k, k]% n2 S1 P! F. b
0 [1 P5 h3 H7 _. l* l) Q" K5 U9 ?3 K
turtles-own[
8 z& x# [' c6 l6 C: U" x& D jtrade-record-all) m; D$ N4 z; O# l% s
;;a list of lists,由trade-record-one组成4 P- o* q& i8 g5 W* z
trade-record-one
/ ~' u8 g. s3 h. h. 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
, U( ?, w: Y: L, r6 K$ H i5 \0 N1 T' C
;;[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]]$ S5 `" j( ?, \- m8 a+ s
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]1 o9 {1 F6 P, ]. o x3 c, G, g
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 O _8 S% z9 W# r7 e8 H6 t8 f
neighbor-total+ Y& r5 Z) T/ V; O5 L
;;记录该turtle的邻居节点的数目) ^$ V+ {; `8 F6 \
trade-time/ G$ }2 n8 h b! C I3 B
;;当前发生交易的turtle的交易时间) c4 Y" ]. n: n- O7 H0 P. C
appraise-give
9 Y2 h9 h# h6 g8 v b8 L7 I;;当前发生交易时给出的评价
$ u' D8 D+ R2 p* M4 O8 X! |2 ^+ |appraise-receive- I- D( R/ s" M$ H0 c: k
;;当前发生交易时收到的评价
) {- j( S; u0 y. t Fappraise-time3 r3 @+ g9 ]; Z% k4 x2 \6 B* r' K
;;当前发生交易时的评价时间
2 P4 Z1 w6 {1 wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉* H2 r& H/ ]# [( @ X
trade-times-total, L- z- l' e7 D9 Q2 x: I
;;与当前turtle的交易总次数
- J9 \7 E2 g2 M- b. u) L1 ktrade-money-total0 u8 n1 V) o* ~3 a: r8 b( L/ T
;;与当前turtle的交易总金额
7 |$ M( p& k( _0 flocal-reputation/ X& `, e2 D7 D! y
global-reputation
2 R l7 _; E4 f1 e0 d% V7 Fcredibility* Z" ~8 s' X! g& N7 @# T
;;评价可信度,每次交易后都需要更新
0 @! h( ~& a9 ^( r* acredibility-all, |6 Z6 r5 ~. s! A- u
;;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* _2 {, i' p$ A |! W
7 ^) u/ L; G/ R3 R( D! g4 w. 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. m4 p& p8 a1 P6 ? \ w
credibility-one
7 n4 J4 \0 z- w2 W/ F, a;;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
, x* a F( h2 S+ Hglobal-proportion* R% E |' R8 t5 w7 U' i/ W
customer; A# C/ [- ~; q5 i# \
customer-no
# D# w* O! J# I5 d$ g9 r. U5 {trust-ok
2 {% A8 s. G1 `! Z4 l$ _trade-record-one-len;;trade-record-one的长度4 z- _( `4 u7 }/ _) b/ G- o6 y
]
5 K1 l: G1 d3 ~( t+ {4 D3 J6 A
; M+ _* i4 U- A' C" m" X- W8 x! K;;setup procedure
4 j! o3 N1 E$ v' k! w# I5 g6 @# ?9 N2 c! i4 r& Q
to setup
3 `6 m' o. @6 `, e( ~ T+ G# D
H( P* ]! ~$ R; ~ca) Q! }5 g+ b: j
9 @: B9 z0 c6 u4 Y5 o" Y4 g9 Xinitialize-settings
' ?7 y* j5 W0 K5 |
. L' J( k* E2 M u7 O8 H$ ?) e3 fcrt people [setup-turtles]
$ o3 L7 Q- I8 \
9 ^8 t- m9 Q' C3 w% v& Greset-timer6 q. o" u/ T* P* ~! X4 X/ s
; o' }/ T6 l! Tpoll-class) `+ l6 v) d( `: v2 E* n0 g$ S/ c
+ D+ h# `3 `3 S- F+ F% ?
setup-plots9 J F- i0 ^! |+ P1 E2 V, u
+ R3 h5 x* @6 U1 t) k4 Y4 w
do-plots3 M5 o* f' \' M% |, i
end( }) r, v) w- x6 N$ d' [+ B
0 S% G, G2 a- i* U- Kto initialize-settings
2 e0 Z$ F$ m4 q* K4 f, X) o6 R9 e/ w$ W& k0 k
set global-reputation-list []2 T; N! q+ x$ i+ s! s1 y
1 X1 a! Y% V2 G9 C$ `
set credibility-list n-values people [0.5], Z, e" ?5 }9 V5 G
. t& I' h+ O/ D( Q: j, cset honest-service 0
/ e' O O- R6 |+ k3 f+ E
0 E, i/ n8 {. m# A9 b" b1 C% Iset unhonest-service 0' I: b9 C, q% X4 |$ i& z
A; d2 t9 g" e7 u) }0 b/ ^set oscillation 0' j6 L. l8 ^6 a4 H* ~
8 Y0 m, f# J, H, `- x# r% S9 r; u8 eset rand-dynamic 0
8 r# e ]9 H9 v* D. _end% S+ f- _- Z5 O9 m; x! p, s
, L4 l: @" l8 q8 H0 jto setup-turtles ) O, }+ ^$ }+ l9 W
set shape "person"- F: Q6 J8 @. R2 c+ q
setxy random-xcor random-ycor' q# T5 f8 \2 s( U: |- p, M( H& b
set trade-record-one []: Y h" i- n( j, V; H' |- Z4 x* u
; I+ d4 X- j; W* \3 x8 l' J
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 _$ @/ W" h; I' _& m2 s* [3 [8 Q3 H: a) v4 x9 S
set trade-record-current []4 o. |6 F% e' I( p$ k/ N
set credibility-receive []
- t, s: P. d+ r) q* Hset local-reputation 0.5$ F7 m+ P6 |- y& G; ^" o
set neighbor-total 0
, P( j! P' l) `3 n# e% v) w$ T" xset trade-times-total 0, j7 E+ \% k, @* x' l
set trade-money-total 0/ ?5 b1 s6 C% l! Y
set customer nobody5 \& ^7 c4 N( N
set credibility-all n-values people [creat-credibility]
W; w- `$ x3 D2 y) Z6 K1 ?$ cset credibility n-values people [-1]1 m' K# [6 Y' @, p
get-color
( `# v9 f j, h% |) c @" O3 } X9 w; {* I
end+ o. E0 L. h; l1 ^) f$ b# p( Q
/ R8 Q0 _, b4 c, s* _+ k6 Q$ Bto-report creat-credibility2 i* x& |. U9 V r T
report n-values people [0.5]+ B' o- N2 G8 a) S0 I1 R
end
0 }! h% ?2 M) t& Q
: D9 s0 T8 X8 R1 u8 y/ E8 [to setup-plots9 {" h/ r3 E2 e; [3 t
! |/ b# u. t1 mset xmax 306 }* m4 ]& J! J" k' ]
\: P& J1 q% }5 B" S7 Sset ymax 1.0* \; \- H! G& |0 l
3 Q7 M& o" J6 V) J9 J! Kclear-all-plots# w& Z+ g2 B: k" K+ d' d
. D# G& b% [% _4 b
setup-plot1 I( F+ r+ P" N0 U
+ T- {* y8 z- W3 H3 `+ o+ U
setup-plot2
. ^+ r( V+ T) y% O: B; e8 R" H4 `! S5 u; L5 y0 O, {
setup-plot30 M% ^/ w- q9 g7 k! y/ S( z# q
end
; B$ Y/ e" ?0 [" b- A3 @
% m7 f; {$ U. i, ]' G/ O& x;;run time procedures7 Z, p1 `3 M* A
% N' _. v% J e0 N; h6 y+ k
to go
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5 L& r* E7 d" X4 h' Hask turtles [do-business]0 g' Z J1 S+ b( G5 c2 c, b3 r
end1 v7 `4 X# e- j/ l$ q2 g
& U3 X: i* ]; k3 ~& R4 t+ A4 V. M- eto do-business / @/ \/ l4 D0 o: V i$ ^0 t: Y
4 `* _& u! j) p$ J s5 Z7 Y% c0 T
: c% t0 q5 A3 _, qrt random 3605 C2 o- i5 n |1 t! y
/ C/ [; M r y" a: p% F4 k V
fd 1' [/ c% z& L9 n. J: R
% K4 g2 x- ?% G- @ifelse(other turtles-here != nobody)[
) ^! G" R8 b- a+ D- Q; q; [: x
" [( a. p( h7 V0 Mset customer one-of other turtles-here- t U7 ?" Z0 U9 h; A
7 A6 H' d( o: F$ J" `;; set [customer] of customer myself: i5 w6 V, F2 J1 }
; O) r8 F/ |' K: t# d j" U- \* tset [trade-record-one] of self item (([who] of customer) - 1)
# P' b$ B4 G% h# E5 m" E8 h[trade-record-all]of self! x8 U% B+ T/ `# m) y' V
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: C1 k, L* Z, |. A5 A9 |& M) h* P! u
! i* j) q( E( B7 W4 s ~- @set [trade-record-one] of customer item (([who] of self) - 1)# N* o! ]: r0 `8 H$ S
[trade-record-all]of customer9 E. {7 j- o; X' Y% \
& y) }; E K2 M" sset [trade-record-one-len] of self length [trade-record-one] of self6 W6 u3 p( w$ J
+ ?: b4 a: C0 Z% }; q5 {% ?set trade-record-current( list (timer) (random money-upper-limit))" U9 Z; F' n# p: O
" I8 b4 J: V& @' Y6 V
ask self [do-trust]
* d2 F# R4 i& N y;;先求i对j的信任度( K4 a) q2 e" s$ o# m3 e3 X0 I
- S$ {! |3 G/ J5 ]
if ([trust-ok] of self)
" P9 J) O2 z& Y5 r. s# E;;根据i对j的信任度来决定是否与j进行交易[
8 Z/ E1 L' u+ k+ pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ u' `9 T" O5 G) z( V9 b
* ^9 J0 K6 x* q[8 D0 B; F7 g# a6 e! g
) \0 x$ N- O/ k# j
do-trade- I) L" ~4 d2 |8 o! @/ ]
7 |# G% `% e- Q
update-credibility-ijl9 d3 \) r& P/ ?& @) f! D5 t" M
1 [9 x5 H* ^) ]# Supdate-credibility-list
' ^+ C! e6 ]( k8 k, L, C9 ^ M# h5 J9 `2 X$ G/ A
' ?5 ~7 v& r* o6 N1 w2 o7 ~3 w
update-global-reputation-list
: m2 c8 Y9 u% M9 `4 n9 P. t/ T2 o0 j, h5 \
poll-class* @8 r! }6 Y- V! p+ x' f
3 b; q3 R- T% S ?7 _& |, \$ p
get-color' L O: N1 a( b0 _$ e. l
/ F2 ?' S' }. D. W5 ^
]]3 w7 Y0 [7 U$ N3 v4 i K* V& b( t
$ g" S9 z% w- _8 t$ ~;;如果所得的信任度满足条件,则进行交易& r" O. K5 f" l
6 F3 a. M) Q N- n6 o, G- L[
* H* |; J' A9 a s; W( |5 o% r' G( w- U) ~3 j
rt random 3600 W: ^) c: A4 c& h
7 T+ o% a5 @! U' h4 Y/ b1 e9 y% ]fd 1
2 `$ b: B6 n, `& ]( Z3 i: Y+ V* B0 o, W$ U) l. d, }3 d
]
2 y7 B @# o; Y8 h$ R/ Q9 X: D! G) A! t( i3 ~4 f' T: x% F- `5 C; ~
end: W! s2 o# U/ W
8 E9 \% C! L+ c0 c
to do-trust
6 p( f- }# y5 `+ y0 q7 `0 R# E% \set trust-ok False" G* s/ H- v @; ~2 g
! j- U: L( E5 O- ^: B$ n1 y
* T3 b: K' B. x8 \' b. H) B l. dlet max-trade-times 0
0 e7 t/ M, f. |. @4 a5 G+ }. X$ `foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) U# ?* Q3 p2 i L2 @2 h
let max-trade-money 0
( I/ I% }; s; u1 J4 F, z& Qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- Y+ x! F9 I' V: Q, k
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 f4 B! q) z" b( I7 g# m- y) [/ t4 H! H- p1 L5 ~; e& D
' A0 I8 P# E! n# i; S1 O! l- ~
get-global-proportion
5 c- C# Z- b2 klet trust-value) T3 L2 g9 f: r- `1 @7 m4 `1 S$ a
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)2 J5 e6 e. w8 @
if(trust-value > trade-trust-value)
7 F& q! }! r: w4 q/ `2 s$ w[set trust-ok true]
1 p" k* F3 e2 G4 Zend/ N8 V2 a! B- V4 G0 m: a
- M' M: f5 i% T" o h
to get-global-proportion5 G! T7 V% h" X" ~/ Y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). r. B+ j( [0 K5 S, D1 |" o) _% _
[set global-proportion 0]
7 _+ L: u9 f5 c3 B8 p; E1 }7 }9 F. U( |8 |[let i 0. w* ?) ~5 `3 l" S! L
let sum-money 0. Z7 M$ i3 s& u4 k8 G" \+ G8 g
while[ i < people]0 Z" h. ]- r$ u9 H
[
- a0 O" M# J! }: Tif( length (item i4 A- s' `( M# t5 ?
[trade-record-all] of customer) > 3 )" ^* n, H# ]+ |$ [) w
[
1 C3 @, o R+ E* M. y+ C3 E uset sum-money (sum-money + item 2(item i [trade-record-all] of myself)). z+ V" ~8 `9 r/ F* J- e( R( a
]
7 h7 f: R* ]6 n& m7 m$ I]" X g5 q/ r- P4 Y; \( ]: q
let j 0
2 d, K# ?3 W# q( D: \0 O- j9 |5 ?let note 0& S: m4 y8 K9 Z- P' E/ k% |. X
while[ j < people]
- v: U S" T" \- S[
4 Q. c; ^3 \; |if( length (item i
4 ?) Z# Q( p+ S2 z0 z[trade-record-all] of customer) > 3 )
; [/ ]: Y6 s, V( O[$ Y& `8 i8 _6 d! S# C1 E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
E3 a2 U3 V- U! y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! c5 s, z$ p% p9 G9 e2 q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: O# {. \; g9 l8 V/ F]
% S4 M P0 M% Y' W T# A2 O; | k]
8 b7 N8 c% i5 W* b! c& ^set global-proportion note, f8 ^6 a3 X8 v& a
]- n( l3 f; w3 [- ?- x
end
* l- d, G. T; z8 D# E* N
# O+ Y6 a! t+ [to do-trade+ K! b$ i x7 |% Y
;;这个过程实际上是给双方作出评价的过程
; y8 o- I1 u2 v6 O# `9 @set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# H% y T/ N$ W6 @; E1 d5 ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 e( T) {, J! J5 r
set trade-record-current lput(timer) trade-record-current s( a; h p! E7 N6 k* P
;;评价时间/ M8 F2 n5 K1 B3 L1 m8 d0 y8 i
ask myself [3 Q- {( b+ U/ @8 F2 ?* V0 @
update-local-reputation, m0 T) N. Y- k/ J+ |
set trade-record-current lput([local-reputation] of myself) trade-record-current$ Q! v) ~+ b) V* S6 [
]
0 Y/ x, T" [ F# v3 Sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
G. ^( M/ W8 {2 `5 T;;将此次交易的记录加入到trade-record-one中4 |/ G- E" N- F5 w; j6 r3 A
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- W. c1 v0 U. L+ C: V
let note (item 2 trade-record-current )% C% @3 v/ K$ j2 s$ u* m, a
set trade-record-current0 a# U( [0 U# D# T+ E, }+ y" U
(replace-item 2 trade-record-current (item 3 trade-record-current))
! L! i( x ~) p$ a: [set trade-record-current/ A0 L& n1 l2 T) V
(replace-item 3 trade-record-current note)
5 M; I( c' @6 S$ Q. y/ ~+ H$ K/ X7 {/ M3 q8 h5 b
6 ]* {4 K# P6 v1 Hask customer [5 Z% M7 m: @1 M. r* K4 W
update-local-reputation0 e" M$ J& L* n7 y4 k5 _
set trade-record-current, n% R( v- R4 ?$ A2 }# o( L9 W5 [
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! ^2 r; H4 R1 h! H5 z]
4 t) r$ o9 Q/ r. Y* A' n* a4 M( |/ O7 C1 f. k* N, X+ U3 M
5 P q) m9 P" F( l% r; p0 J
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" `' S0 @+ M1 ]! i7 \
: `# P$ q% F. o0 \7 Z+ J6 H2 Hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 o2 ^) @* O8 i" y& `
;;将此次交易的记录加入到customer的trade-record-all中
5 z" H( j+ b+ m8 d* y* ]end
$ o# s( \% d5 j! _4 t/ ?* _; g& s$ m
to update-local-reputation
4 U0 ^6 ~1 @. Kset [trade-record-one-len] of myself length [trade-record-one] of myself
( H9 T2 @) b, y1 D' B( K6 P: ~6 E( o+ P! Q; C/ ]- {
# Z$ ]+ Z( s" n, u% a
;;if [trade-record-one-len] of myself > 3
9 J" i6 |/ l$ L% N" C' Gupdate-neighbor-total
) s8 X. F& O- w( [ D, O+ @;;更新邻居节点的数目,在此进行* E! G6 {# w+ V% M& {3 M
let i 3; W. U R% e; Q. T
let sum-time 0
: a2 v$ \1 R' N* ]* G+ Z0 j: ^while[i < [trade-record-one-len] of myself]: _; _4 F) s" |, n8 F! M
[
1 m6 O3 _6 [1 zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 J0 j, }& F) X6 N6 h5 D: W& ~
set i
$ o8 \; w5 `; a# _% |* x* t' o( i + 1)
$ k7 O. S9 B0 F1 J- ]1 J9 ]]. w+ u U/ h+ k/ P T
let j 3
. G4 H! a% P- C. z: ^$ Elet sum-money 02 R' E4 J0 i& u" b* n
while[j < [trade-record-one-len] of myself]; Y( [ A i' W( X/ O
[5 O* V* E: n, |0 J
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)
. r) D! j* z. _1 ]$ v8 gset j
9 p; Q. i+ e% r! `( j + 1)
: J) F5 E x8 q. b0 j]
2 c: K6 V% S8 u& L/ `' l V M. Zlet k 36 O8 S4 O5 H) H; B+ F
let power 0
( G& d/ z9 M1 W+ l4 W& hlet local 00 s# k* q4 `' m$ E1 x$ T) u
while [k <[trade-record-one-len] of myself]& s; N' `$ J- V) X: V J* z
[
C/ y0 ]! v* g) |9 dset 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) " K& W/ Y2 h+ \$ p3 z( `2 @
set k (k + 1)5 o1 M0 K4 ^6 P4 K
]1 \0 W: d2 I5 r
set [local-reputation] of myself (local)6 N% }: G2 t( [$ f7 K5 d v5 v
end
" v; d4 G& R- ]7 \9 W
) D$ a, f! L" z8 s q6 eto update-neighbor-total' Y1 I' z: C c/ ~
! R: A, B' ]1 J, y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 d& g; F( u3 e* i0 ~% m
" N7 b0 o) R/ K" q4 V% l% j' t# i$ L3 I. S1 c1 b: {% s9 g
end! e9 T! H4 F2 J4 X2 _
% m7 }2 p# ]3 b3 T1 r" r" Gto update-credibility-ijl k# x T+ m2 X) X& C0 u
8 G! S) n7 N/ T5 ];;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。
, W7 t. I3 S" q! R3 @4 hlet l 0
) o0 T" i. ~; |; |8 X' x9 Qwhile[ l < people ]
7 S5 Z' Q% b5 Q3 t;;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
0 R& l) O' ^" j% Q& @$ y[
4 c! y0 j# o! Y9 d: O. |1 nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 m. @2 ]; L% J
if (trade-record-one-j-l-len > 3)
, t2 l+ Y5 t h3 g% k- V* o" E( 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-one! B( I. p7 C- z" m6 ]
let i 3
% o, A8 n* n2 j% Mlet sum-time 0
( W# t* O3 X, y) r; z8 xwhile[i < trade-record-one-len]% Q7 t) I% M8 h
[. [ n8 i) q2 H# ~9 B' [! f' d- L
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 i6 W( `( C4 Z! m4 a7 w8 bset i# P7 J2 t+ ^' J: u
( i + 1)
! @3 c- n' B4 V1 v7 D]' d, q& {; A' T8 Z5 a
let credibility-i-j-l 09 O8 t1 Q1 z# E/ {# t
;;i评价(j对jl的评价)$ V% g' r' { E
let j 3
" R- R+ R5 I/ _3 Y" E" t/ M' Qlet k 4% ~- _7 d) ]0 G. X
while[j < trade-record-one-len]- ^/ H7 i# y' r) `$ ~: J/ K
[
2 u2 v5 E, q. U0 K: p* pwhile [((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 I: E( K* }+ _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)
8 e2 o# Y% q& n0 S% Pset j, \' Z4 w0 Y% I( I+ J9 z7 \
( j + 1)
2 a7 \. b( _' u]* R& Z. Y* A# ^3 E2 z1 U+ C7 x: b
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 ))3 }4 y% h+ z% H* K! U1 {* j
- }5 x; T6 _$ @" J" k/ [7 z0 d2 V" ?- E- R
; {0 a' s: C' G/ g1 d! W mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 g1 B8 o/ m* S- T( s;;及时更新i对l的评价质量的评价
* Y# S3 r! x& m9 k% R2 C8 |set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& L" o X3 }5 h3 y" p- wset l (l + 1)! l0 R6 y7 W2 x/ o+ N7 o3 d/ V( R Q
]' T3 w: \3 e0 X" Q5 n7 q; D
end) g- F5 W8 R. m
, y8 ]' R0 N) Q* A: x0 i/ J; N
to update-credibility-list
: U4 e% ~. t, _1 o' ^let i 0) O- E& L' x& a9 ~3 E) @
while[i < people]1 f/ ?2 }; K% N2 X! @0 \# L
[
; p9 t+ T4 F& f1 h# flet j 0 H8 O6 D- o/ \4 g) [/ e
let note 0
! j$ g* m, H k3 X# Z; `8 ulet k 0
! @$ |# ]* ~1 {! ?' t% k; a9 o4 |0 D;;计作出过评价的邻居节点的数目; p4 ~* j5 I6 h8 j
while[j < people]
" `$ }* s4 I2 }( g! R& R; L[
) k$ Z$ t8 C8 \: E | L8 Hif (item j( [credibility] of turtle (i + 1)) != -1)! S; I/ L' D, A: M& R/ q( o
;;判断是否给本turtle的评价质量做出过评价的节点: n6 n1 i! @1 H: a" {
[set note (note + item j ([credibility]of turtle (i + 1)))
2 g1 h2 N$ X! k) K& |' G( T2 d;;*(exp (-(people - 2)))/(people - 2))]7 W( C, M7 J7 |9 s6 K/ Y" [
set k (k + 1), Y! w% a- V: k; i# `3 g$ d8 j
]9 A5 X7 N R$ Q$ N
set j (j + 1)
( [4 q9 l9 W" Z2 I! y5 \]
' j8 o# G, d2 E+ P& Zset note (note *(exp (- (1 / k)))/ k)
2 i- \6 w6 V8 N6 {0 I: p a' m" Lset credibility-list (replace-item i credibility-list note)
: w* n/ q# x. h6 B0 W4 gset i (i + 1)
3 p7 N" c2 Y" ^! B$ m]' r% i6 [" T( V/ M+ ]
end! b9 l1 A+ t% o# V3 Z
& o1 D. q- _0 d: x8 D+ F4 h4 f
to update-global-reputation-list4 G) X& r* Y+ T0 ^
let j 0% {7 w: M" D9 G& r, ]! _4 z
while[j < people]
5 I* h2 `$ g# o: {3 A4 j4 `[- j1 h0 r. a8 I# ^; H
let new 0
! G& a R$ t0 S |/ y+ d5 r/ H;;暂存新的一个全局声誉+ b$ T& V. L! V9 W! F
let i 0
: }; [( l+ R7 V$ o8 I+ flet sum-money 0
: J, V; [! U- k9 q( }, p) X4 dlet credibility-money 0" l$ j, t; h c! f" c
while [i < people]
6 Z. S# b7 }6 v9 @. J% ~6 {[4 |9 j! W9 \# T2 G
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) Y* j) k3 q Iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), I1 @) s& Q2 K$ g( B1 O( J) A
set i (i + 1)
9 u+ K1 T3 d# U! u& d]" K ]9 |3 r" X2 C9 t
let k 0+ S8 W9 c3 C) j6 Y) C
let new1 08 ?4 K5 j+ V5 u5 b4 G( n4 B: j
while [k < people]: ?2 Y E6 ?) C& C$ |
[
& N. I, C6 X- J0 Yset 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)
! ?( E8 w, e" |7 u: B' T3 Lset k (k + 1)' z: L$ n' ~* S; }3 X+ V9 G. ]* w
]# b- A N# A' z3 [- z8 G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , [ t0 }9 e" R- M
set global-reputation-list (replace-item j global-reputation-list new)
% U7 G8 r8 v, o; v7 Z5 m9 E! Uset j (j + 1)
( F2 U9 T# X- U8 _8 B8 |) \]3 F9 ?; A" Y1 x' [
end
& p/ A) G+ s0 N+ l% r% e5 W: N' F- Y( o X' J4 m4 J
- [2 |* a* ^4 O: k: v
* V, S3 }) i. ?/ v5 A% U: {3 _to get-color1 h( v1 F% l! e* ]
, L" f( X1 ~" f, f1 F0 K( G/ cset color blue
) e% }- E6 k- ^9 k- g3 t% qend
; n* R% y. W" \3 ~; X2 o# Y% _1 \7 X( ]
to poll-class
% v+ @: ?! O% J7 ~$ _end
$ E6 y9 { B3 Q! G' Z: }- C0 O# i
to setup-plot1$ d' s+ ?6 g6 z$ C) `
, ~# s8 G1 M2 H$ A3 h# L
set-current-plot "Trends-of-Local-reputation"! b$ x- t* D" {. B: H x: D0 \
: h- ? Q( T+ jset-plot-x-range 0 xmax+ N8 g0 `! A2 r" n/ A$ l% E' Z
- M, q. U' M2 ~) g( P) L- |8 ?set-plot-y-range 0.0 ymax+ R/ R( \! O# s$ m
end& [$ |6 O9 Y; R' b. G' }! D
' R" B" z# p/ N
to setup-plot2
9 L X* {; D3 W' f: i. f+ M' L" q, k% X. `2 J+ j/ H2 E( Y
set-current-plot "Trends-of-global-reputation"$ R8 Z+ T. P8 B) @ |
$ |( p$ V2 E" V. e, r- E8 D% N9 Uset-plot-x-range 0 xmax3 s+ ]! s; M! {. s1 D
) U5 G0 z, t3 | D& U! ^5 Qset-plot-y-range 0.0 ymax2 J4 u% U4 b' C; ?6 ?/ _9 i. D
end+ ^4 ?2 H: w) s5 q6 _' m
& d' T( K1 ?4 l! G, r
to setup-plot3
) k# f, T$ u6 @6 h2 H& ` M& r1 x8 p5 ?3 [6 V. e2 |/ o: c; ?' k
set-current-plot "Trends-of-credibility") ^/ E* B! \8 g$ d: I# B/ T% b
+ B9 i# w' r& ? K) |set-plot-x-range 0 xmax( }; V2 t+ Y9 p3 {2 v C% v7 x2 K
8 r" o7 D6 z, _2 {4 t9 qset-plot-y-range 0.0 ymax2 ?( i1 j4 P2 ?- K }- i! ~0 J+ P' j
end4 n" f- o' c5 e9 r
+ y. v3 g! j. w/ d, q# k& A0 Dto do-plots
. ^* K& L* O8 V4 u0 Fset-current-plot "Trends-of-Local-reputation"3 B3 Y1 B# ^3 \, a( _# M
set-current-plot-pen "Honest service", w6 }% X& m; E! U$ X
end
* ]. K( p* ~' |% h# s! V5 G2 t/ s" ?( w9 n- v
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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