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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 x& w/ }& V3 j) b) Y
globals[# g5 u4 e4 b' D, p" @6 _+ r& x
xmax
: q; W6 G( Q8 r- U0 X7 E+ X, ]ymax
. _; z$ Z, H4 cglobal-reputation-list) q; [1 \0 V- q8 l& w7 {
8 I# |3 [, E M: ]% P0 Y;;每一个turtle的全局声誉都存在此LIST中
\8 M& x& ?3 V7 H( D" j# z1 H7 Pcredibility-list( ~& J, C+ P) C/ i8 p/ ~
;;每一个turtle的评价可信度8 ~& R* Z% j1 }
honest-service! K& e( J- b/ v" M7 a: v! C
unhonest-service
# l) S r0 @1 p& \7 Qoscillation
3 q7 c4 u& [6 trand-dynamic
5 @. @+ L" ^; D7 m. P6 W]
3 h/ a- N0 j; ?! b+ S `* ?
+ C' }' p3 z6 Eturtles-own[
& j$ f# W0 @! S* o7 N; [trade-record-all1 f- T' y4 A* |
;;a list of lists,由trade-record-one组成4 a `& g3 n4 B8 _% L# \: x2 [% r7 h
trade-record-one
- ^* M3 H9 \. O6 C/ ?;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; v( d1 v; N) v4 [2 M a, Z8 d- s$ o
;;[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]]
. S# K- x8 U9 P6 Ttrade-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]
" V( k; q1 H O1 h& ~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( J+ D- i+ Hneighbor-total
! J5 T8 L" ?# t) U. Z; u0 q;;记录该turtle的邻居节点的数目
: g7 d7 z0 y. w6 _4 Ztrade-time6 U D: V7 X: I+ i3 C$ Z
;;当前发生交易的turtle的交易时间
' E7 P, L/ O1 Y9 t% Z" vappraise-give
. g5 e2 D, z- L f* f1 ~$ j;;当前发生交易时给出的评价' ]! U9 ~& d0 N# R$ a/ C2 T+ o
appraise-receive
$ L8 \0 Q. ~' z5 \( Q( v: a) a;;当前发生交易时收到的评价
) s4 y9 u9 Q, s+ b% ^appraise-time
- M Q r& ^+ G: F; [;;当前发生交易时的评价时间6 z! ?9 ]1 M Z6 n9 w, T/ {
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" h5 @6 z5 h7 R9 K+ ]+ q3 x( Btrade-times-total
& s$ n% F0 z4 x3 l* j;;与当前turtle的交易总次数
9 Y7 X E# J4 f2 n& U- H) o& ]: {5 _trade-money-total
7 c$ E$ @, k" q2 R0 C/ ~;;与当前turtle的交易总金额0 P( W m- _- }$ ]9 a
local-reputation
1 v" }/ m. U% `2 C3 i& Qglobal-reputation
! O+ g+ Z# J) Q7 C& Qcredibility
/ ~2 l3 \0 v) e a;;评价可信度,每次交易后都需要更新2 r* i0 r7 R' o1 n
credibility-all
, Q# H6 r+ e6 ?0 C/ 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
6 M# A$ d* C* V B6 p4 F8 E
/ j, G9 f: A( }9 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, M# {& F6 _7 Y0 ^+ g+ Y- `+ ~
credibility-one1 ?) `; R; l0 B6 u( f$ @1 }
;;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
$ ^* E3 ^( M+ s2 }) pglobal-proportion7 X/ p7 B* s* W
customer
9 s9 p+ w! J) ?6 T2 a5 q9 ]" }8 ~customer-no
5 G1 m8 C- k; p8 N; B( A! E6 |3 {4 T: W. Jtrust-ok
, Q; O+ ^6 D6 {trade-record-one-len;;trade-record-one的长度7 p$ A) |. f& [. e1 z: Z9 ~& e( P
], l; o# `5 F5 R4 Z" H4 v) r5 d/ h( }0 L
& e6 h C- [" w0 _) ^1 T6 F
;;setup procedure
& j6 \4 Z/ o8 Q! w% ?. N( U+ }1 E: x- _3 N4 @# N/ {# k
to setup H7 s. b$ F, r0 t' J$ b! h
0 g9 ~+ M Q* z% ^- L. tca
3 N2 s1 `" G8 R: F5 l$ {: W6 p! d0 }1 ^# c, Z3 e4 e
initialize-settings
# ^# P2 j8 H _, F3 Z/ b/ W7 }" j F6 L8 L+ z1 \ V% Y) j2 b
crt people [setup-turtles]* B. C5 p' I; _% V
) C* l8 G9 S7 w8 C: ~# `! L3 sreset-timer
4 L' x/ z g& T* F8 N' m2 g. u# I
poll-class
" T6 K1 f" c/ B* s2 f+ ]: X3 I1 F) ` v7 j! W& k: O
setup-plots
. \4 \+ w* P4 S, D! q9 C
$ x3 d5 E S5 D' Q @* B) Ddo-plots
; ]: R9 u) l) n: \% M1 Kend2 v2 }, \; v, d0 s
Z6 r: `' [# x) K, r
to initialize-settings
! f7 T/ T {4 v3 `. h0 T/ @9 u+ A6 w9 Y
set global-reputation-list []
6 W7 ^' G1 K' o. V7 H+ A7 x. n
' D# @2 i8 o& Nset credibility-list n-values people [0.5]; n, a7 s k+ ]$ U
6 t5 m3 r; ^+ l1 I0 p
set honest-service 0
; G/ {8 f& M0 }9 W3 [! E) B% v
( }$ z; G+ w" S! F0 u; a3 Xset unhonest-service 0. L; X) x5 c& C2 c4 i. }' Y7 }
! ~; \5 m" d8 I6 D( { @ F
set oscillation 01 k3 G1 c4 C- u' [ Q/ m% L- q' I! v
: ^* Q, k' ^! O8 L! F) W* v3 oset rand-dynamic 0- n1 f9 k$ E8 Z c
end0 i" `2 I* C+ l0 D# T" }8 v+ {
( u$ v( B1 h) |+ {9 pto setup-turtles ; h+ _4 k2 g9 c1 _4 Z+ T
set shape "person"
8 _# }& Z3 c+ a& T. G4 u7 [setxy random-xcor random-ycor' i8 l2 v: W0 Y# S
set trade-record-one []
* `9 S7 ^: i" W/ g( t: i& L
" q" @3 ?+ d, m& M2 u3 ]3 d- ~set trade-record-all n-values people [(list (? + 1) 0 0)] : K6 }1 ^+ v B2 h" }
5 v0 x* A5 I8 h$ u: ?# y. t- B
set trade-record-current []
3 N4 J6 o1 T* _( l! B. t1 Qset credibility-receive []7 h3 C3 i* q. H( r8 d7 m# C
set local-reputation 0.5. O" A" \% K! q. d
set neighbor-total 06 S4 K8 C4 a' A1 U1 y; i3 V; I
set trade-times-total 0
7 i; k) b" J( D7 |, R- @9 `set trade-money-total 0: }$ d" F" M! R( J
set customer nobody& g2 r+ ?- i+ s/ F& d) ]+ S5 ~
set credibility-all n-values people [creat-credibility]
! n5 ?5 q) c2 `. M6 @set credibility n-values people [-1]
4 R r. f9 C% U" Rget-color, K* Q m# J2 {
6 h/ g5 V; z, T
end
2 U, p% E8 S' o6 `1 h8 @$ c$ [& `6 S) L9 }; I
to-report creat-credibility
# @ }; u! E( Oreport n-values people [0.5]
( X+ b* q% o% z( J+ hend
& f; `9 C, `# }. ?! ?( s: ~+ h( I) |; a% u c
to setup-plots
% u6 E: a" Y7 o8 l6 \( Q; X7 w
; ^* D' Y1 Y& C/ Mset xmax 30% ~8 [+ ~* v! k/ z* w
2 n- K- X; ]9 @! q& ~set ymax 1.0
, J% V2 S) y/ P1 N$ _: O5 e2 |/ V9 s9 j: i
clear-all-plots
1 g9 T8 H" a7 [: X9 _4 t# p2 K4 L2 G7 |# V% a1 j
setup-plot1
# V% p6 S, g4 I/ X6 _
- G# A' B# j+ l1 D! lsetup-plot23 X4 ^+ p( Z) }0 n" `2 e5 Y! g$ i
0 Q+ i2 k- P4 |
setup-plot3
7 Q5 J5 Q, I5 p! c$ Aend0 [/ \. c, |- B& T7 f. x' M, M
/ R4 Z9 N9 @# x+ e4 j
;;run time procedures
# T4 X3 x: q$ B* Y+ z) K7 l
7 W, z: p& J% C2 V$ j& M5 C. Vto go
# [ o. K5 L1 z
) e/ E) W- `- aask turtles [do-business]
9 m( V# Q* V7 Q8 L2 L0 Cend5 R3 e& y3 S3 U! ^1 Q2 p
4 H0 h" Q0 V- s, Yto do-business
M5 e; _6 r, F' n; _! Z9 Q4 J9 q# u
2 B [6 s& }4 l; I- Q9 Y0 urt random 3607 Z6 ^/ P! }8 U+ D8 `9 D
$ f' r0 m# y3 Y8 }
fd 1$ B% y; I' ]; S
! w1 e6 s# c# b' N- a4 I5 P* u8 p
ifelse(other turtles-here != nobody)[* e5 G* P, @" B# S
2 Y7 D( Z# U+ ^4 G3 C. x: c7 p
set customer one-of other turtles-here
% L- j3 j: G- g8 A+ h; a0 Z
4 ?. [+ }8 z$ u) K;; set [customer] of customer myself4 @ f) }. T. i. W( e) T
. [8 H* O0 D- q* \' Bset [trade-record-one] of self item (([who] of customer) - 1)
- _# f5 K7 i x( C2 ~[trade-record-all]of self
1 M: V2 h7 P0 x: a;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# ]* F' N) u8 {/ F* K/ e( }. r9 z8 S4 f3 w2 ~3 ^
set [trade-record-one] of customer item (([who] of self) - 1)
* n# j+ D# O# ~) j& X+ j[trade-record-all]of customer5 U- \$ p, u! @3 L: n
[+ I+ W& l8 r( P7 ^
set [trade-record-one-len] of self length [trade-record-one] of self& B/ k; b5 L9 A7 D3 i2 M0 v
* \: T1 N- i* ]8 _) B6 l1 Iset trade-record-current( list (timer) (random money-upper-limit))3 B- g1 j8 Z" P8 m; N
$ a2 D+ w* `0 |+ U. F
ask self [do-trust]
1 a9 M2 Y% m }( P. Z0 Y1 G- I;;先求i对j的信任度- g6 S ]+ d: L- p, Z5 |
# L* f+ ~9 b" W7 Y& K% ~
if ([trust-ok] of self)
2 t- D4 w: J. T9 @1 i: Z; o;;根据i对j的信任度来决定是否与j进行交易[( i0 I) @" z4 q/ b/ J
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
! @0 m* n2 ^4 E0 x. L) t$ U8 s4 X+ X4 _7 ^" R* o
[1 M7 c, P1 L2 w2 y. V
7 g" J% K8 }4 l( |- }: F; X# m, r& ?do-trade" S4 j% E6 |" g/ Y5 D
; e2 a' H. M* \6 Eupdate-credibility-ijl
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update-credibility-list
3 |7 u8 ~* T! _; F
; ?6 ], z% @ i; U) K( F3 h) q9 q) k, r0 ~" Z8 m6 J
update-global-reputation-list2 _, n. u4 z: H" l6 w+ i
4 s+ E, o1 Z; Q' d' l( T. Cpoll-class9 q8 M2 ~: E# S/ x' A! F: b
6 B) Z1 N* e* @9 fget-color
6 A: N+ n- H1 Y( k
0 V, y# J1 T7 o3 l# U]]
+ g4 L9 S0 Q- ?, P2 |
p; g P7 n. G, T8 C;;如果所得的信任度满足条件,则进行交易
4 Y! M9 {, i- a
1 K6 }" |; q2 d+ u+ P0 b& E[
2 v7 u0 f( `! t
0 G) S7 H, l) grt random 360
; J+ C! P: f8 l* K# ]! R/ C v
7 ?4 ~; b9 x: v% Ffd 1
% V; t- q; T, o, Z/ u
7 z7 L2 u! T4 t# L3 q& ?; z( X]5 a" E5 k7 J1 S1 Z1 I0 u* `, q
; `& `/ h; k4 E! W0 c' m
end
5 Q9 G% V, [/ A5 E1 v7 @) p( a% C; H8 B; \. _
to do-trust
4 Q8 M8 b- ^! a; vset trust-ok False. ]' A, n- W+ M$ Y9 d& L
J2 u& e) ~ T# d' Z( f
% @* l2 Q. v+ a4 ^- N' G S
let max-trade-times 0
$ S2 P8 F. v3 B2 Uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# l5 J* q, |- ^! p
let max-trade-money 02 [3 E4 v$ s4 F% D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, w1 u' @% k1 flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 x/ j& J$ R. D6 B% ?' R" O. s% E8 x/ f+ L% \/ u0 Q, N/ V" E
( g B- l* U/ sget-global-proportion8 b1 t7 g3 P: ~3 s: Q' W$ S, ^
let trust-value% ]2 `3 T' D4 M7 V1 Y1 g$ L
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)
$ k. e! Y1 W) f# t& qif(trust-value > trade-trust-value) j8 W3 p+ j/ b/ Y! t L
[set trust-ok true]
; T* q' I, `7 \: w5 z4 _' ?end M3 ~0 M$ u2 M9 f7 J
3 O) z" h+ r" B& @5 f
to get-global-proportion6 c% J5 X# u3 N
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* A% {3 M5 N$ C- W, _7 q
[set global-proportion 0]
* T! O/ P/ p. J[let i 0
/ s& e6 [9 v% ?, T# I1 q7 Wlet sum-money 0: P( R1 H) y- p- y0 C3 C
while[ i < people]: N% ]) n6 G5 N2 z( s; ~7 p9 c+ E
[
+ Y* h* ?2 ]3 X# @. o; I7 x6 N2 kif( length (item i. a5 d- O% M* Q* R+ N' I
[trade-record-all] of customer) > 3 )0 Q, h9 d# f+ f9 ^
[3 R0 |, |% o; I6 N, I& R
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ Y. h! N: ~: i0 |8 s- v9 J+ q- E/ D]; H9 q# A' |5 Z1 z! T8 D
]3 c8 V& T; {' z' [- b/ ]
let j 0* e4 | P" r' ]% q* L3 ?2 D% K$ S4 I$ {
let note 0
" i/ a# J3 X" `while[ j < people]: e0 X5 y! y C) d) Y( d
[
9 L* W% N1 [0 c5 Q1 A! qif( length (item i# X+ d1 Q; S' S/ p
[trade-record-all] of customer) > 3 )
$ W6 S8 K$ X4 k$ `[3 o1 C% E" W2 M6 C( E# M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* r6 K4 @. i' G& k- O$ z$ N/ m
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! `: x) |9 @# Q) M( H$ I
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], l' S5 Z) a+ v0 t2 f
]
: J+ X* d4 |: n( ^( C8 u]
2 H% ?& F8 t" ^8 ~' Aset global-proportion note2 B6 T5 D0 [9 Y2 l' c+ z8 X
]8 S7 Q, c" }$ A, K9 ~ j$ x" i4 h
end" e5 O3 R2 g! t" n
9 c) ?# U$ M; d4 @( P- R
to do-trade
% j$ X+ P7 B* N7 t;;这个过程实际上是给双方作出评价的过程
2 z" i) W! n3 }/ Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& r) M* `1 ]! T% x: q) G6 Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 q' F* f# L' C
set trade-record-current lput(timer) trade-record-current; ?/ n* [5 h* _, t" L. k0 X
;;评价时间; i l* x5 W' K0 J1 c0 i: t
ask myself [6 X0 v P' ?/ ^% @8 j
update-local-reputation
' v& x* f8 }* N: @) o6 iset trade-record-current lput([local-reputation] of myself) trade-record-current
& a4 i- Z7 }5 X]8 ^9 {2 \& l9 ]$ Z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! D5 ]* P( j3 E; v& v! c;;将此次交易的记录加入到trade-record-one中
$ A. o' x X% V1 ?# N6 p, jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 x) `+ Q" c7 {3 g" f% w! f- }let note (item 2 trade-record-current )6 l$ w. k. m5 Q+ d4 U4 `
set trade-record-current
( o q( {- B+ I u: ~5 Q/ A(replace-item 2 trade-record-current (item 3 trade-record-current))
) V/ R8 h3 E2 F; R9 ^set trade-record-current
5 C3 h& E2 a0 v6 p! a1 K; {; N4 }(replace-item 3 trade-record-current note)
$ S8 q. N( t. D6 R; A" Y! B0 {
, C% L2 [1 Y2 D& U1 j$ P
& ~' H2 p3 X/ E' rask customer [* m% B7 i% J' S! B
update-local-reputation
# s6 m( N2 H" g+ uset trade-record-current
/ y4 R/ m* } s1 W0 Y0 T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: C9 C/ ?+ k* p x]
; [. {# p& x0 D, ]' g% O+ P$ _. Y/ |- [+ o' R: \, l
6 Q7 O7 ]: G) [ ]
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 m+ a+ z3 Y" e3 j3 B2 z$ X& d& A" M4 D
7 q4 {) |8 Z7 q& P) N. t
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): \4 \8 l/ S' h) @9 G( U
;;将此次交易的记录加入到customer的trade-record-all中
2 {3 Z2 F4 m# ?4 Y6 y5 P! ?1 i/ Iend
+ }* d" I9 j2 j! @, B: [( l, u1 q3 u/ ?/ \! o/ Q2 w0 K9 o) \
to update-local-reputation7 ?- X& @$ S0 H8 J0 \& n3 l7 Y
set [trade-record-one-len] of myself length [trade-record-one] of myself1 @% x7 b9 K% d
5 o7 C: i5 M' F( x
, K: J% R( @- x) k3 J/ g;;if [trade-record-one-len] of myself > 3
7 ~( @7 T- M0 uupdate-neighbor-total$ c L: [8 `" m1 k
;;更新邻居节点的数目,在此进行& l, x; T! u! O$ ]! l# Z
let i 3
% x3 i" M, ^! T8 V$ d8 d; dlet sum-time 09 S* w0 u8 c6 q3 V3 m
while[i < [trade-record-one-len] of myself]9 i0 d& r/ P& P v
[
3 j) b4 Y4 ?0 W& r$ Q+ V' Qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* J) N& S& z$ `* _+ I& q
set i' D5 ?% D% t( ^- H2 K
( i + 1)# }# s% d7 w6 | U. Q' S
]9 R! l! v- j D) T1 N: _" ^. S* c& W
let j 38 s( ^$ A- ^; p% M
let sum-money 03 N+ ?3 ~$ j2 C7 _: ]8 Z" _& Y
while[j < [trade-record-one-len] of myself], Y' B8 B6 ]& u, f p# C& v
[7 A. K! a* V. S9 e
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)
: ^/ r6 B6 q* n6 F5 Xset j& Q7 o) D5 e: k9 ]0 R0 f3 w6 B
( j + 1)
" ^; V" _5 Q, O6 A2 Y]9 Q# ~& R3 j3 R
let k 3
- B( F" h- m$ E5 U" [let power 04 T7 ~( q; B! f% Y& X5 @
let local 0' f2 t- G; v3 R2 T' s+ N
while [k <[trade-record-one-len] of myself]
0 I- A1 c( \6 l# ?- H3 o& L[
& v3 F/ g: f3 L) nset 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)
( ~+ _5 A% Y0 P" l6 H/ @set k (k + 1)
& [+ x0 A( t7 s9 J/ W$ G/ {) r$ A]# _' I2 G4 I: |% x4 F5 b
set [local-reputation] of myself (local)) Y- q$ ^: E7 m0 o& v
end1 R3 d$ G# p8 h; q/ ]+ L; Y( x1 b/ N
: y# r0 b& W ~' Z" K1 M$ Tto update-neighbor-total
- y' a" n- T' ~# H- s' O# C) z! r# N4 G( [- W
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], ?2 c: c+ y' y, \7 x! }/ \/ _
) z$ e$ g) ~, n% Q0 i! N& u- B0 t: m7 z4 C" }: F
end* w$ ]. P. i Q2 ?$ k
! D0 ^. d- u, g+ p) \: lto update-credibility-ijl
7 s8 ?' ?/ R2 B' ^* A" D5 a! ~; `2 o6 f$ `8 b( k {6 G2 |
;;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。7 E2 v3 _0 G: k7 i6 B7 E
let l 0
2 t3 G- b6 c" ^6 N6 mwhile[ l < people ]
; v' ^ \# k: N3 I;;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5 D0 Y8 u* N8 X/ I# L" N5 E
[7 c! @2 L, d6 b2 I
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)% h U" A$ ~$ L! M3 A
if (trade-record-one-j-l-len > 3) f# j* n. {. \8 A C/ m
[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
7 i: I: a. B: k' S' F* [let i 3
. x9 j. H5 I( r6 p' U; j. w: y( n4 [let sum-time 0
8 p8 o7 i- s0 U0 b: K' J- `while[i < trade-record-one-len]$ D. B V+ S0 v# n9 }1 l
[ K4 y; Z- p) O- M5 m( v# ^
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ c4 \9 S! ]( h% a2 tset i
6 m9 w! a2 d. h* q7 i' w, R( i + 1)& V+ S; L+ }# G* O. e% H+ ~$ G d
]
% S: h: \ B4 ]: ?2 qlet credibility-i-j-l 0# [3 L/ [1 N2 A2 P, y3 u! ^1 j
;;i评价(j对jl的评价)& D% m8 W; u" R
let j 3
8 w' r& Y# _, L1 G' {let k 4& A7 v9 g5 {5 o$ k8 r! `( P8 z
while[j < trade-record-one-len]
0 H; M* E2 m+ r# q$ @[7 ]+ d/ Z6 p# \" N6 b
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+ x$ b, Q% a2 |
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 P* Q# t3 e) L, v
set j5 p) E6 W- m% d/ y: D' h. q' @
( j + 1)6 `' E& n; C- {' l4 f5 `5 c. \. W* y
]" V8 W' o5 @0 e" Z0 O
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 ))
+ F9 f) H! f* _! I& w
* l* ?/ j5 P y6 M/ Z
1 ~0 @# M2 f1 Y( plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 o8 {4 N6 |8 f* d
;;及时更新i对l的评价质量的评价+ d. u$ g' `9 q6 x Q: B/ x3 J
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 @" k0 u' a% Y
set l (l + 1)
( O' c5 ]) L2 p! E]
( q6 l& ~6 u5 |9 E# a. w7 I; {end
6 ?7 d8 X/ \( Z6 ~: t- m5 W8 Q: O: g* Z6 y k( K
to update-credibility-list; ?0 s2 H" r$ G3 E& Y J4 {
let i 0- ]$ ~8 v% g/ w) r7 q; o1 f
while[i < people]. a ]% T/ A" M. S6 n" ]+ k8 r
[
4 [+ _" Q. w' X9 Klet j 0
3 t5 z! d- Y0 O2 H0 Ilet note 0
. j) t F Y8 z/ Q, Jlet k 0
) W. A. Z) [5 h;;计作出过评价的邻居节点的数目3 ]. a# g/ b+ E7 y( p5 J5 d! m5 e
while[j < people]
" q+ O/ ]) }+ X; _& l7 b[
- h& n; w: S/ }if (item j( [credibility] of turtle (i + 1)) != -1)- Y' m' L. a; P2 M: H8 v$ q" u
;;判断是否给本turtle的评价质量做出过评价的节点9 _8 m* }; c# ~( A+ R8 }5 i
[set note (note + item j ([credibility]of turtle (i + 1)))
, K7 c; b2 U1 L0 m Y; a& T- h;;*(exp (-(people - 2)))/(people - 2))]
# ]0 T" b& z$ M/ Qset k (k + 1)- q I9 n9 n: L; `% Z/ B* R
]
$ x# u$ B, `7 Pset j (j + 1)" j) @6 d$ x. F: o8 g$ j" _
]4 F' |" u) E0 B6 q+ x2 f7 `& u' a& {
set note (note *(exp (- (1 / k)))/ k)
4 Z. B) C5 y" Z0 h$ K: m$ kset credibility-list (replace-item i credibility-list note)
C, C/ S4 k+ a9 O3 eset i (i + 1)
3 v7 }4 Q9 g+ R# r( h]3 I: D1 y& L5 H7 i3 F5 [; @+ V' y+ m
end
: e) ~& C3 G! S2 t( A* @
& a6 p3 V$ `" k4 Yto update-global-reputation-list
% L; |! X" M v9 S8 w" @. u5 ^+ slet j 0
; m/ q# [- k$ Owhile[j < people]. u: A1 t4 r/ _; Y9 `9 k: L9 [, e
[. t3 ]9 W, G/ Z; E) M
let new 0
( f3 G( N/ v7 Z4 @: J;;暂存新的一个全局声誉
- {+ j+ p4 S4 S$ ilet i 0
) M5 J3 h0 x$ Y; x+ glet sum-money 0 N d9 A. ^8 b2 @
let credibility-money 09 z& x8 S" Z- |6 f( s, L4 \
while [i < people], N$ W) H9 a6 p# m& U S
[8 A( o& M8 O. y" l. R* `3 q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); J, e& Z( d6 |
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 s- j4 }/ u6 _1 d' D. [set i (i + 1)+ t) ]& L8 K4 S* D6 V X
]! R' p2 ~+ O9 m" [1 L U* C; c
let k 0
7 b2 R6 e, I5 d8 tlet new1 09 L) F6 d" M: _5 M5 c
while [k < people]: s" ^, v W( X
[5 b+ @5 T: b$ E
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); D6 @" T, J @; T- S p& B
set k (k + 1)
' q+ @- |" @ {& y5 w]1 J5 Z( }. H7 a, f
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
T9 r1 P% a/ J; y1 | p# n7 Hset global-reputation-list (replace-item j global-reputation-list new)
0 U5 \0 X) z7 Z( _: x% a: gset j (j + 1)" `; l& k1 J" `, ^& b2 @
], ~) a; b/ Y: Q/ f+ t+ a/ z
end$ l2 ^% d4 V n6 w. k! t
" {. e" @% c' E* F0 y" d! R) B. ^4 |7 G3 s
# e: K: C/ D$ l1 `$ Cto get-color
- k4 J' |+ U% c$ s+ j% Q, A6 |% x5 K" V" `6 B
set color blue
' @. c/ A5 S; {9 `% M) |0 `) ?end
' w' k9 ~# C, V, G6 M% Y- M0 e; p9 o" t
to poll-class
; b O+ V. g) i" o) send- X. R/ e3 b8 L
6 \6 ~3 `1 y2 o7 e$ r! j, O. T ^to setup-plot1
/ J+ w0 a8 z7 c: [* }! C" h. g" K! O5 h# D
set-current-plot "Trends-of-Local-reputation"
) c4 K; o5 l7 D( `' r8 W# U4 Z* D) {1 V# C/ V0 K+ m
set-plot-x-range 0 xmax _6 ^# u' X. ^/ d- ?
! |9 o9 N# }, F% ^/ lset-plot-y-range 0.0 ymax
% c% z4 w: v) n- o0 C8 Send+ t5 T$ I! u9 F. I. s- v; h* X- M
6 E) S3 @" W, \6 H8 e/ q) ?" W9 z
to setup-plot27 s) j1 O( L$ L% I$ Y
: C; s% } D% O1 b
set-current-plot "Trends-of-global-reputation"
; Z( }. w, Q6 M/ A
# |0 @. z9 q3 j$ Y% Vset-plot-x-range 0 xmax2 s. y. C; F0 A0 R7 D# e* R7 t3 g% x
# N8 H$ {7 z) d) Z6 {& y% T: O6 v$ mset-plot-y-range 0.0 ymax- m w$ x) t7 g8 C6 \/ w
end
- a9 k- I; f: G4 I, R! O4 ]4 r/ i- M: `1 \8 V9 g. A* F g$ Q
to setup-plot3
7 M Z. A3 u4 F8 W' b# v/ y9 Z
( }+ L; c2 m, F# R; V" ?set-current-plot "Trends-of-credibility"; ]4 j! @( v& e. L Z3 B
3 @5 ~0 u( S7 b3 R! V bset-plot-x-range 0 xmax
& ?5 Z5 w$ v2 Z6 S [( e, y' W; u2 ^% a/ O9 T
set-plot-y-range 0.0 ymax
' F. {5 T `1 e) D! B0 vend
# w. g) \( v* \: I" ^: Z4 |' C4 ]" G1 ]. ]7 n
to do-plots" q1 r% \7 G I% q; c: N. D. @- {
set-current-plot "Trends-of-Local-reputation"
, U" `7 t3 t. eset-current-plot-pen "Honest service"
+ q+ x- @) ?3 e9 a3 B' \end
7 ?; a: a# X3 G% Q2 f* D
# r# q }0 G8 a% j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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