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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+ I9 X4 j r" P) L# T8 P
globals[/ \- r8 a2 ~' Y) y+ W
xmax
! I3 |. }0 v6 u! S7 W& [ymax) O, K, g! o4 h. r8 U* [ w; ]; G
global-reputation-list
2 X* Z) U) y" U- f: U# N! ^) ~, M' X( m" d" `, D# `" ?
;;每一个turtle的全局声誉都存在此LIST中
! m$ n( _; Z* R0 A, V3 S' N. ocredibility-list/ i0 F/ d6 [; h1 _3 R3 [* q' i
;;每一个turtle的评价可信度1 R" _8 p( D, g h0 M6 j& I( H
honest-service
) S+ `/ @3 }! y0 x. T1 eunhonest-service y- F3 f4 Z/ l( D( A8 P5 O
oscillation
* ~6 {0 K! v( o) o; ?& nrand-dynamic2 q" k! j5 j( i0 F; b; O% ]
]
4 b4 ]' h) d4 s0 i2 Y
J4 ]! X* X! k) X6 ^1 l/ C) {turtles-own[
0 m1 K) v0 [5 v- K( }! m Dtrade-record-all( \* p0 B+ ?% E& K2 W% t- @" U
;;a list of lists,由trade-record-one组成) y, m+ E. k! t1 }' \
trade-record-one
/ _; L5 O: I$ o ?" d+ h! U) ];;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; p* k5 O K( G' C: f
* d& c9 y% U6 e! ];;[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]]9 W3 K/ r X H$ a
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]: {. q) e6 ], w O7 Q7 p$ M( |
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$ M4 i) p; K: Y7 ^0 A7 `
neighbor-total
2 P% B' t' ^: n Z% F: N% v) o;;记录该turtle的邻居节点的数目
9 P. N p# h/ k( I; A# k# d: Ttrade-time
0 s; G+ m9 U; N;;当前发生交易的turtle的交易时间; H% U# w3 A4 ^+ @
appraise-give3 G# a z2 g5 A
;;当前发生交易时给出的评价
) c4 ^' D! i: N6 I3 p/ Q/ `appraise-receive
/ X* S) [, C( G& d/ ]! C; n# H;;当前发生交易时收到的评价5 N; I- x+ n$ R: e
appraise-time
3 I, n% K% o; c; t* U3 \$ N;;当前发生交易时的评价时间4 O" y2 k& ?5 b" m# O4 `+ w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- D' o: q' K1 o' s2 I3 q W
trade-times-total! ?8 p3 d( }+ R1 K; r
;;与当前turtle的交易总次数
% x. U! d" E! jtrade-money-total
/ a. W, O. m; ~/ M# E;;与当前turtle的交易总金额
/ O! _9 a7 {3 Q2 W+ `local-reputation
/ r T) J! W- `8 Y6 bglobal-reputation
$ N' W( F% }# r2 Zcredibility
1 x h6 j7 Y8 g; F6 W4 K;;评价可信度,每次交易后都需要更新
2 w$ [$ Q+ ?! N8 ~, y* j& Ocredibility-all$ N F. V5 b4 X5 G
;;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
5 n7 U, h3 m* m$ k% A
8 W L4 R( X0 C4 c1 b;;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& M' ^0 [$ w6 p7 T8 g* |
credibility-one
4 ^ ^3 f3 ]4 n/ s& Y;;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# @% ^. v& L. g3 w1 R0 N
global-proportion
+ o4 `9 R# ]) l) v) c' ~+ t# ^. zcustomer! H7 F4 C# D1 G4 U
customer-no
5 h6 t% Q; E _' Htrust-ok# x: ~3 n! G5 X
trade-record-one-len;;trade-record-one的长度1 {7 u/ v2 f* p# ^$ d1 Z" D6 ~
]; ]; F6 `- u: o: l0 ^3 {+ f. g
5 _, a; ?2 z/ T$ ]# ?4 I7 L/ Z;;setup procedure
! z' h$ s8 p% v9 J
/ p# W& U6 a/ d3 s0 p/ u4 Yto setup: s' ]" r+ B+ p
8 b2 t, h0 t0 y
ca' G* d& d- ^4 q& D" ~
' ^) X3 C/ s R9 g' J8 binitialize-settings4 f( _1 }4 |5 r) b0 I I
0 u0 p+ u; Y- I6 z9 J0 [% lcrt people [setup-turtles]
7 r2 G3 U# z; Z! f$ a
" d9 L1 h/ t6 [/ F6 w# m$ ~reset-timer) G8 g; @/ J; O/ p2 M# L! v
2 }. t$ c* e+ g4 q/ I* H6 g
poll-class+ g2 @) \, T" F4 z0 C
. U: F8 b$ m" D% |setup-plots+ f1 x4 u2 v: Y8 r1 V* h/ W
- }) I0 \- w) ]7 ]+ G
do-plots" W6 E( \. C) ?8 ^- d, {
end* C2 K9 }- j( h1 S! M
# q6 D( |) \0 Yto initialize-settings
- [$ O7 _8 h1 T9 S% p o
8 M, x8 n- J6 ^set global-reputation-list [], }0 x2 Y/ m( {# j( ] E: B
2 G" R O& H9 ]' _$ i- I2 H4 \
set credibility-list n-values people [0.5]
& ]& ^2 T( j+ D+ ?
% H% k3 S* j' k ?set honest-service 0
2 L* c9 K- ~9 N8 D3 M3 _6 x
+ `8 I$ L4 H3 g8 @& i4 cset unhonest-service 0/ \( s8 d4 E9 `3 ~; ^8 F
+ t4 n+ n3 R5 e6 s- B# Oset oscillation 04 z& c3 V; y/ f. p" m7 F
* a: ^2 ]4 {2 D% z
set rand-dynamic 0
' k) K: o- n: I2 Oend
& X) I d) K/ m* i4 W4 B( I8 a7 w, F. @- J" b
to setup-turtles
) n) L7 C) | P$ s0 ^/ }set shape "person"
$ J% V4 l: a3 B! I* ~setxy random-xcor random-ycor" ]) H" j2 m9 |3 `, n5 F5 ~
set trade-record-one []; Z% q0 O. O6 F
+ L8 H6 }1 e! Z/ T0 Z9 |' g. eset trade-record-all n-values people [(list (? + 1) 0 0)]
( F3 C3 i% n5 ]+ ]" A9 L: j+ {( G5 M, Z' C
set trade-record-current []
' Y+ J) A( B9 a& k6 @" t1 P; Aset credibility-receive []
3 r( j4 b' M5 J+ Uset local-reputation 0.5
# U' y( W A/ a9 |2 X3 r, qset neighbor-total 00 O s2 n6 f: S; `% _
set trade-times-total 0
* L" t( w i! c: j5 t1 b1 Zset trade-money-total 0* l: o. I1 d. M$ ]" Y" y7 c
set customer nobody
+ }3 ]$ a6 q' O3 m, E6 |8 _set credibility-all n-values people [creat-credibility]
4 \# ?3 J: \5 {! {; H' Dset credibility n-values people [-1]
* O7 P/ k! x$ iget-color3 E7 G" c& F% \% [3 d
6 L' w, j$ a2 H9 |& s
end
5 L$ K, i+ ?2 u6 _
- r+ R* M( \* _( d! E$ @to-report creat-credibility& t( \4 ]. d+ L
report n-values people [0.5]
- Z4 Z' w( _0 _" V: ^end
4 ]/ k( b: i7 u( j% z0 l8 V- A: k
' h2 r5 x1 f8 d7 z8 s- lto setup-plots; p+ j+ n( H' g" ?' n
. c. W" |5 H% S$ ^- Hset xmax 30$ U0 {- w- A6 x6 D, D" ~1 R( l9 j
8 S7 [6 H' }+ `: z W( c# lset ymax 1.0# c5 A$ K2 {0 q: z
4 n# ~2 h* Z5 V$ @# B' @4 pclear-all-plots5 Y. p6 H7 M, J% N* V6 p* k) n
. U' g( y2 g- t, Y- Wsetup-plot1& t' v9 x _% D: a0 C
. j& z% t. x6 I2 d
setup-plot2
) \1 Y1 ]: y% i- c& v# |6 L
. ]% Q0 p' ^( |. X0 t1 L; ^, P, _& Csetup-plot37 Z4 q, k4 P$ K, r
end
2 ~. ?" `8 q% R4 |" a) Z2 K/ z: l& x& {' q2 \; T9 b5 ?
;;run time procedures
1 z `2 @3 N% O0 o3 U U# T. k; y# {# }: R4 y5 v4 g1 [% Q! G' p
to go) z( e+ F9 d$ Y$ \9 i; b# R
- P& I; b3 u9 o
ask turtles [do-business]
+ L& n h- g1 q0 z, Send
1 }* L) l0 o* D4 l& ^% E+ z( t+ F% m2 k* h9 _0 F
to do-business
3 }& W6 @4 p; R5 S5 ?1 L1 T5 A8 f ^+ K
# u0 V, V7 [! L! s: L
rt random 360 a7 T" u, K' }5 S6 v( b( M
% |: S5 S5 @/ c7 u' V1 v
fd 1; I' F5 B2 A3 Y F8 [, B, B
3 k7 Q$ ]( J- ]: x, C* e) V3 m, iifelse(other turtles-here != nobody)[% ~: k! I' v- g6 V; i
" V2 x+ s. F5 N4 A5 _+ mset customer one-of other turtles-here! I5 ]: A/ C/ E# c4 m
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;; set [customer] of customer myself& X) |/ o3 L- \( ^* V
L6 g: S) i8 Z
set [trade-record-one] of self item (([who] of customer) - 1)
; w# _* r1 b' ^1 m[trade-record-all]of self2 c' S9 x. n! g: i2 p
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# E8 `0 k o& B0 W+ Z4 F/ l
C; [- T4 {' o
set [trade-record-one] of customer item (([who] of self) - 1)
9 d5 x8 x0 _$ v# W& S# l" _; E, `[trade-record-all]of customer
* h2 W3 }" S/ G9 F7 l6 |0 |) Z4 ^5 N6 C2 ^3 p
set [trade-record-one-len] of self length [trade-record-one] of self8 _ o" E. a4 K w2 f; o, H
0 ]' e! p7 f3 u/ F+ `+ R: |
set trade-record-current( list (timer) (random money-upper-limit))
5 g, n# [( u/ Z$ c; A$ C! Y8 U, t. B
ask self [do-trust]" p$ y- B" |2 m& r9 _
;;先求i对j的信任度4 H7 w2 f0 A. U) n
u7 m4 [/ J9 h+ B
if ([trust-ok] of self)9 C9 M' X6 Y8 M1 R) ^5 n+ h
;;根据i对j的信任度来决定是否与j进行交易[
( w" U" w3 Y& x8 qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ `$ C$ d1 u4 L! C9 V$ `0 r
2 L/ b2 G* X& u5 @" u* P[
6 m [) B% v" C, g% p* B9 G2 R/ H" S. N) R3 n# U" w3 K2 l
do-trade
+ }/ n0 @$ a# y% g7 O/ Y" N4 k+ i' q2 l/ c* }
update-credibility-ijl
3 E, n4 R- n) d
r3 |/ {1 |/ F" ?1 I$ l$ W0 Hupdate-credibility-list
4 R0 k5 L) U3 Y
, A: ?/ k+ ?* o, k& E1 w3 v0 W7 W# J% P# [- K5 E) R, C
update-global-reputation-list- N+ F+ l+ ~+ c1 u C5 g* v
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poll-class8 f0 J0 U9 J9 m- M' R% f
3 Q& d, R# s+ z0 P4 z8 m4 Oget-color
: g) Z* n& O9 `6 `
/ c- e4 U5 O' s1 N& f. U, W]]" ?' U0 L# y: q7 H2 u9 R3 y
; B0 f# C% n; }$ R. u7 n;;如果所得的信任度满足条件,则进行交易
, A! `) T) D; y! Y- y
" ^- |, h3 C2 f& w7 j[
, P8 u4 d, q) T8 I+ h1 {/ B: A5 ~% L
rt random 360
+ z3 p# d/ g4 s8 e4 K9 [. @
, ^) h D& t: V/ m. Z+ W7 G$ Q% m% @fd 1
; u; Z7 \6 x! k2 a: b6 O3 ~+ y+ ?; y3 C
]+ i H- f t D) b" m
: w( h% t# e. m y; x
end) R( T4 g8 h% x& d1 f& W
3 O5 s- O2 [$ Qto do-trust ; j' i# n, M p0 G1 ^2 {, f
set trust-ok False
4 R" H4 u' A; B( C# p% J8 F% i+ n' [; B$ J
3 Z* k. l. j3 ~5 e$ {let max-trade-times 0
5 S0 A6 O; X3 F2 Y; ^% q3 ]! u2 Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- Y: O& P6 F+ _3 V1 E
let max-trade-money 0. b' O0 \& u _' w' M, y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# @0 c4 m- G3 d, r" vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' e- Z/ ?7 I4 y4 @4 `# S2 h
9 S& l/ N2 t5 V0 o. |, T* e8 k9 l* W
get-global-proportion
; d& @% s7 u m2 J2 A0 ]0 n' Rlet trust-value' k/ ?5 }; ^4 U' Q6 T. B
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)
$ I2 Z: _4 W% L* dif(trust-value > trade-trust-value)
; n) @* m9 O* G3 F0 E( r0 b+ i[set trust-ok true]
4 T/ u7 t/ B. j; d- u% uend
1 j% r G6 a, }% J" @# v7 S ]
to get-global-proportion
" Z5 q$ h! k' g' mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* R3 `/ W+ _8 n$ N7 W( k0 C. `' k
[set global-proportion 0]3 i* d5 g6 n* |; A
[let i 01 O7 P# \; D- D7 }" R7 F9 Q) |) [
let sum-money 0
& h1 k7 e! c/ V$ g# k8 _4 lwhile[ i < people]3 C; [* L) B* q; x1 j
[
# S( y' s2 @) r: \+ l- Jif( length (item i
( z* V# w7 Y- N5 Y7 a[trade-record-all] of customer) > 3 )+ ~) e& k% Z4 M7 Q3 R& Y
[ L+ r; S# y; E; X0 X
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! L* u' _4 T. u- Q$ E
]
+ e! s4 ^. Z7 e6 a]0 f; R! u* t3 Q7 {* N3 Z& z
let j 0
! g: A: T6 x# \9 j0 \) Alet note 0
4 N6 t6 I. }3 Y+ c& q3 o3 K8 @) y! Gwhile[ j < people]1 Z3 Q& j. h3 @0 q/ s5 w g
[
5 a- Q" t+ f$ N( \" E \1 h) kif( length (item i
# ?8 x' N' ` _: _# z[trade-record-all] of customer) > 3 )
$ j1 t7 `1 n7 G[
1 ~0 [ `% s# }4 ?ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) V; F" B* B( M5 |# z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 E( {3 u6 Z" F1 x6 k' b[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ G9 Z7 z$ Z- b4 f9 W8 z- c7 N
]6 Y. E- a6 T- F+ ^
]8 @$ u# @" o- ?) e- P0 w
set global-proportion note- K( q; ^9 s' p* i6 ^
]2 C/ \0 I3 L( A8 x, t- ~0 F
end
) ^3 v$ K, j# w; g7 [4 C8 o4 m P8 X* l2 t' y# j! J
to do-trade7 R5 p+ f! x Y0 b/ K
;;这个过程实际上是给双方作出评价的过程
+ T' i; F8 A0 [$ O! S6 I1 _/ jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 T! V" Z1 w/ m. Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* _& q$ [* `: f( V$ ~
set trade-record-current lput(timer) trade-record-current
' V1 B$ v1 Z) u* v;;评价时间# w8 f. f" v( V1 F( r/ j4 u
ask myself [
( ~# S# t0 K$ h; b* c; Kupdate-local-reputation; `" U! P0 W6 M7 u7 D, Z) z
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 T" k3 j; E# O- Z: V' L]1 y( F7 K. q9 L: {' y c" }
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ w+ |! F# I9 b4 x6 h# L% G;;将此次交易的记录加入到trade-record-one中 ]+ v1 t' _) ?" }# C
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% O. l9 ~ s8 w5 I2 V a4 f4 Xlet note (item 2 trade-record-current )% E( `7 }) f0 d/ Q) g8 {
set trade-record-current. i* W3 b4 ~/ T' G7 X
(replace-item 2 trade-record-current (item 3 trade-record-current))8 d9 `3 M6 L# B7 W
set trade-record-current
4 f+ e% j8 `* l7 d(replace-item 3 trade-record-current note)
: Q! e& D' ^! x% a' E' `& e8 s- ^# Z9 w- s0 p, ^4 a
# `$ i# `) ^* j E' Task customer [
/ p; l7 x: E$ `6 f: a) iupdate-local-reputation2 n$ Q0 M1 v S2 _
set trade-record-current
* X* y% [, _) X# b! t+ m4 v; W9 j3 U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# x& {! _ r1 `4 b8 F$ R- l]
- k8 n& ?, R* f r3 g6 o: t8 Z5 l3 Q# E3 a% ~& ~4 {( F
# r1 o8 k% X8 f" s/ ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 a7 r, Y: _& c( k; \) a) }8 r; i: C/ B+ D: A0 A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* z- ^( h* n1 Y# ?% h: J. O. _;;将此次交易的记录加入到customer的trade-record-all中, t" ]& m$ {- b4 z3 E5 i
end9 F; C0 _; r" x5 S
/ E# a! Z! @8 f1 e- uto update-local-reputation
# c) ~% L) j; o4 m, Sset [trade-record-one-len] of myself length [trade-record-one] of myself
5 I: X' t% F" v. ]5 f( y( R4 s* v1 \ C
! z$ o* A$ g* R" ^& X/ M;;if [trade-record-one-len] of myself > 3
; G$ S1 |9 R1 M$ Z7 K; tupdate-neighbor-total' \7 s) v! J; {* |4 s* z
;;更新邻居节点的数目,在此进行/ x8 ?' o7 `3 a* F7 Q' ]+ J
let i 3
- l p& N! a- F h0 e6 ^let sum-time 07 W7 z( z. J X! z9 {3 }7 h
while[i < [trade-record-one-len] of myself]" N Y9 T/ X v$ Y8 _' C: [) w
[. P5 u/ V2 r3 c" [8 `' e
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( T4 w* V6 P+ N$ j4 b, Zset i) Y/ E( U9 N+ W F4 g
( i + 1)
0 f1 t m+ `3 {! G; L; C]8 u4 `5 R: t6 x; O3 T
let j 3
/ s% l+ }# D9 G5 [ {+ Qlet sum-money 0
- G- P* G' c9 V* C' ^+ n7 m5 p' twhile[j < [trade-record-one-len] of myself]- i8 |; [0 T0 ^1 ~: P6 g
[
- U/ g5 ]9 C* V0 aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ _+ \, o$ j; h5 R( }set j6 [6 L9 b! E; @: E4 m( }
( j + 1)
7 w& L8 x! J X7 R1 R] G0 R- n! q! }$ w8 _
let k 3
0 c+ R, ? h+ V- v- vlet power 0
/ W0 L3 F3 J$ {- clet local 0
8 {; m! q2 Q$ Z2 f* C1 _while [k <[trade-record-one-len] of myself]
# j- _% }. E$ |[5 X1 y& p" \# Q4 c7 F! L: m% J& J% N
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)
9 ?: ]' m( w& t2 }0 {. Mset k (k + 1)
- N4 h& z" T9 N) u0 J' B' i5 M]# ~! c! H- y- {+ c$ `; f
set [local-reputation] of myself (local)2 p" H: u) a7 O" g) V* r
end8 ~8 e# A: s" H. J6 a3 K
* Y) j8 `7 a. G1 pto update-neighbor-total: g( [' Q+ X3 }9 H. [; k- G
3 w! }) i+ N( o- \# v) i' @$ M4 \if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. [. e. y/ `5 a* R9 c4 B: y2 P* ]' P5 s1 I' p8 b! A' X- r3 S- J
x {' W) B- F0 e+ P9 Pend
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to update-credibility-ijl
; {5 I' e* L! \1 O0 y# c5 E* U$ o' ?2 E% v# w8 y* m) U
;;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。, Q t2 E1 K( Z8 R) j
let l 0
9 d1 W' H6 B2 l" n" O4 Xwhile[ l < people ]! O9 b6 l+ Q9 t! a$ q v
;;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# p# I. b& K" H' t ^! V* h
[1 x% }7 x9 }" Q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( p. S: i) F5 ]2 ^5 r6 ~9 {if (trade-record-one-j-l-len > 3)
& [* ?6 C! D1 P' Y$ W[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-one3 r8 v( I2 p9 H! W, G
let i 3
4 O$ f/ z. E/ p8 _, R; \let sum-time 0
/ Q {' v' L0 f! M3 m6 m+ j; d' j8 `while[i < trade-record-one-len]( |9 p& D$ Q: r; `7 o& D5 V
[
$ Q- p ^0 ?: F- o. Xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, |- a0 J) o1 F5 r8 e% p- oset i8 [1 T0 t4 u' T/ Z7 ]& E i8 E
( i + 1)
. ]2 d8 F0 h9 []
" C+ n. a, ]+ ~2 Glet credibility-i-j-l 0+ s5 K0 ]! M7 g" J4 R
;;i评价(j对jl的评价)
" \- t! x1 z5 G! @* ]5 |let j 37 T' l% }6 @2 V& z; _ A
let k 4
/ k) X+ ^$ M8 }while[j < trade-record-one-len]7 y" P7 I' [2 H, m5 B, j
[; S4 a* ^! W! s
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- C4 g: c4 F L
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)4 F: \8 {8 \, r* N
set j4 M" w9 a, H( Z( x" c6 Z( H( g# B
( j + 1)
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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 ))! m& v! t, M: s, R/ h1 j5 b6 m4 p
8 ^% V& v( {2 j
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 {) N, c% o' S;;及时更新i对l的评价质量的评价
l9 M0 |' V* `% S5 K n0 Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; v- c% E) p. M0 }3 V; N- _set l (l + 1)
$ U9 `2 T3 n, Q$ t: S* P]
, ]# T8 f' R9 K: ]end( s2 G7 I& D+ G A, l
6 b0 ?4 E, O& i/ C
to update-credibility-list
6 q# I4 o* {# ?$ |# V; t$ Vlet i 0& T6 s. H- ?1 V0 X( p* M
while[i < people]/ O( H' D# h. r& i
[. w5 B F8 n: Z% C8 _& R
let j 0
/ [3 L: d b8 v3 m% wlet note 0
1 r& ]8 |+ z0 t0 X$ A4 `let k 0
/ c( z1 o8 J9 s6 c$ {;;计作出过评价的邻居节点的数目
! x Q9 ^' X0 E2 v0 R/ fwhile[j < people]
5 K, }0 V% e% J" ?/ k9 [[
# d2 t/ M; u; r! O |% _0 ?if (item j( [credibility] of turtle (i + 1)) != -1)
, ^) H8 B" F% F1 t( j* f0 S;;判断是否给本turtle的评价质量做出过评价的节点
$ q" q5 B2 t& l) u% T[set note (note + item j ([credibility]of turtle (i + 1)))2 ^& d6 u$ [" L. \
;;*(exp (-(people - 2)))/(people - 2))]4 Y9 [" C5 ?6 R2 J
set k (k + 1)
6 t$ S" q4 E4 `9 m1 T) k* U# s]3 V$ f( @% W0 N1 T) _# ?
set j (j + 1)- H8 c3 I* D2 G
]
" z1 S$ _$ s& j" S; a6 Mset note (note *(exp (- (1 / k)))/ k)
7 G) w. h6 @! s: J1 X' \set credibility-list (replace-item i credibility-list note)! @% V) i# n/ ^9 H c
set i (i + 1)
% E' F# A; `6 `; v- \]
/ m2 D, X- C( R% nend, @0 h2 Y y- E0 s5 J
1 G) q, ]+ ]+ u6 c' u7 e8 v
to update-global-reputation-list5 V0 W4 x- [. o4 }" }+ ?
let j 0& u3 |, i8 g! t! ]
while[j < people]3 j* P; F' K2 a0 G$ v' Z. F; H
[
! `+ O7 Q! P6 u3 ?let new 0/ Z% m: r; ` y; ]- c! Z7 p' [
;;暂存新的一个全局声誉
0 Z# m4 E6 t' k! b0 Mlet i 0
7 D# i5 O9 @% H+ A( E! c: _let sum-money 0
9 w* p$ F* c6 p- W0 Alet credibility-money 06 [% z+ @$ x$ N
while [i < people]0 t) K4 q- M4 R0 U* K
[
1 H+ }# V" Q# Z- L# mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) R# f/ p6 l6 v2 Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). a+ O: F: T# L4 k- F q2 n8 B
set i (i + 1). S- P% G$ R3 V* G3 f
]
% d6 t% n1 R- D. `. Zlet k 0" O$ w% e8 s$ ^. ]" O' f/ z
let new1 0
3 v* ?3 }5 ~" Q! i" b/ Wwhile [k < people]7 s# N& V: [# n c2 h% X( J( g
[4 R5 O: A& ?- K: Q/ T& @
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)$ L- R$ G' f8 x! S/ G
set k (k + 1)
$ _, c+ Q# q! x7 J1 s; [2 `]7 J; J1 t+ t0 i/ q1 @
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* l/ i% m. P- dset global-reputation-list (replace-item j global-reputation-list new)
: H+ G( I A6 L) N; g5 ^) V7 l( O/ q. fset j (j + 1)
6 A+ x, r' H! o+ ~8 p9 _]
4 w6 D3 Z& j. V5 _# p/ _) r% H1 Rend
/ r% c/ q6 _8 O! B0 p7 I' m" v, T. V- i; \! A* ? v( C
6 o/ ?7 L2 [+ d+ V+ D/ r" j5 T% N8 Z3 q+ e3 e1 k
to get-color j0 L8 r4 N/ {; \6 \
" [' E9 F7 |# k7 o' Wset color blue$ n; \! Q& r! Z: i1 e3 s% S
end3 |4 J- _. K4 B8 \
$ D/ d- o+ Q |( K& ^to poll-class4 c2 V c4 i2 ^
end3 O o" Y/ ^) W$ l* T: M
" Q0 B& P0 V& {0 K& \7 u! S5 ~) @to setup-plot1
9 W2 Y- E! ^, o3 \8 w
+ [6 Y8 L2 u( X( U) Mset-current-plot "Trends-of-Local-reputation"2 ?( F. y0 Z0 M2 n( ]6 S) s6 d7 r
8 V$ x D% o {! i7 m
set-plot-x-range 0 xmax- b! b; W/ f, ]. b, [% D
& q1 H l4 Q3 S$ mset-plot-y-range 0.0 ymax; I! d/ r2 ~8 f9 n- I, C
end
+ O4 ], S, ]$ d5 S8 l& f7 X$ A0 J" x2 e
to setup-plot23 F" Y P- r4 Q5 O
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set-current-plot "Trends-of-global-reputation"- U6 c0 e1 I0 }4 Y
0 }3 D4 W+ g+ `4 K" p$ P; l
set-plot-x-range 0 xmax
$ f! R" H) r; I" }. J+ c: K6 y; [; J8 c( y! N
set-plot-y-range 0.0 ymax
0 d- _! ]3 I- Z% i5 L9 N4 |5 d! \1 d" ]+ Oend
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to setup-plot30 j. R( J, K F; [' r" L
7 X/ D0 ^2 x5 I' P
set-current-plot "Trends-of-credibility"
8 K' g+ u9 W8 p& L8 B' s5 ], K8 w& P
, E/ h9 F9 X" e* d: Yset-plot-x-range 0 xmax8 E S' i- N$ F& b
. ]3 _* O( u" s' P% v) J
set-plot-y-range 0.0 ymax- O( P& I! x# n" p
end8 g8 w8 h# n5 R/ P$ k' [7 u
* R" I- V9 ~2 e- ]
to do-plots! z! W2 k: C: @: r
set-current-plot "Trends-of-Local-reputation"
5 p! Z% W4 r( ~1 i' Zset-current-plot-pen "Honest service"
/ A! s( U8 F8 a3 _' I) \end, n* v' n' a) E6 i2 j! {- \* k1 m
7 o1 O* Y8 h6 I; J8 K- `3 d[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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