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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6 N; M& j6 d! E& a& |3 @9 o" u
globals[; b1 L2 G0 z" c: M
xmax& y& X- d9 a% h
ymax& `; z3 K& w( V! n, {9 t9 ]* S
global-reputation-list d! Z# J# X8 y; N7 |* s
6 F( Z* R8 C, I' J, f
;;每一个turtle的全局声誉都存在此LIST中
, @1 Q. F3 {1 O/ Icredibility-list
1 P# t$ E9 p' w$ y& a! {4 y! N% H;;每一个turtle的评价可信度
$ i9 F: p8 K* c1 @honest-service. H7 t' [9 S: r7 _ R
unhonest-service
4 w# H) ^9 p1 q+ q, }oscillation% C5 r1 ?7 P* y, E+ _5 X0 `
rand-dynamic
3 V( e0 `% l& M3 A] q+ V; {# A1 p8 _% F
' }5 C+ L6 \6 @& {
turtles-own[
6 \4 M( s4 O/ {! F8 u: Ytrade-record-all
" j4 \$ I% m0 w/ j8 u;;a list of lists,由trade-record-one组成
* T! ^0 e9 c: n3 u6 {trade-record-one+ o+ ^% a2 z; z' J
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, w6 I/ b4 l( r0 R$ d6 E; u
# K. F4 |% e2 |7 q4 V;;[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]]
2 n) Y$ N4 n( `6 X4 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]
$ ]8 D+ P: ^4 J1 i$ _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
7 H# N6 g% V( s0 g) bneighbor-total( ?3 |) G W2 z
;;记录该turtle的邻居节点的数目( N9 K* L3 O' m
trade-time* o. y, n/ E5 w0 {1 @- c; g
;;当前发生交易的turtle的交易时间! o$ j2 e5 h6 e% C# O
appraise-give
6 X1 D C3 N( _ t1 |;;当前发生交易时给出的评价/ }; \3 l4 i+ d' Y& d% P* }9 n* \
appraise-receive' D, i! Q) C# o, {* V* u
;;当前发生交易时收到的评价
- I" v3 s+ a% U5 Q- w5 g# [appraise-time
* o, J! Z" _! t4 D& F6 N: p;;当前发生交易时的评价时间
9 K8 R8 G- J+ H0 [local-reputation-now;;此次交易后相对于对方turtle的局部声誉% H( h: P" F" x
trade-times-total
# r) }2 k: B* v;;与当前turtle的交易总次数$ {% D j, h/ n, ?
trade-money-total- V2 {2 f0 _6 K/ a" g, L; l
;;与当前turtle的交易总金额
! a. V4 {: K% X5 b/ Y* f0 l7 Clocal-reputation
% P: @2 x% ~. v! Z7 K6 w' ~, s1 [; gglobal-reputation
3 k0 _7 h* t8 y% B3 scredibility
& D0 E4 o/ [3 ?! x;;评价可信度,每次交易后都需要更新
) d6 x g) s, @/ H6 bcredibility-all7 @& q8 a( C/ w- \3 W8 D
;;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
# @4 Z; |1 x- K( \: \/ e1 j; Y
2 ]+ ~# u4 E8 w$ Y: j L. ];;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" X% \6 U" n- \3 \! c. Dcredibility-one% L I w4 c' R/ x5 e. [2 J& Z! V
;;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
! |& {' E9 T* k" jglobal-proportion) R7 O k8 S9 G' a$ m" J
customer
/ i1 k; q" o, H$ _' x9 x" h8 tcustomer-no" d( b# O' H5 z9 V
trust-ok
; u, s# S# e1 r3 N; i! O6 Ctrade-record-one-len;;trade-record-one的长度
- z7 o6 L0 Q/ n0 j+ |% W2 N: I4 A5 L]
: R2 p3 `4 t4 ~2 o& A, R' x5 W# v5 s- x* y. }
;;setup procedure
8 c2 B% l& f& V; H
6 g! q3 I6 E/ C6 }to setup
6 |6 d; c& t! L# D' r' d, R2 L: Y* ?/ n
ca5 t3 {. ^4 u: ^9 ~, r% C
" P. W: \+ k6 O+ A2 y- y
initialize-settings
: X' J$ |1 B: s9 e# L) I. \; W
- \2 M. ?1 q1 A' Q0 Gcrt people [setup-turtles]6 g# B. t3 D4 M3 V; O
5 ~' \2 h6 r2 u6 r: dreset-timer% I, N- |/ Y3 {/ L2 x3 u5 L, h
! m6 C8 T% k7 ]0 Q
poll-class$ t7 j7 W' X ~# H+ n" ]) J% @
) y! b: p* r7 Dsetup-plots( }7 w' W7 \' T3 z* a: \
6 g1 o* u& A5 A; N2 H, ~do-plots; x; V5 T) u1 a ?
end1 ~; b: ~3 b& Y! f2 H
( X- q4 X6 q9 p: l- w# x" K- f2 H, rto initialize-settings
! j. |, f, G+ g! w1 C6 u: n# [0 W0 D- _2 F$ b8 N! {
set global-reputation-list []
4 B1 ]2 ]4 v9 Q1 K3 `
( G4 Q! a9 [% j8 B) x3 `) @ Uset credibility-list n-values people [0.5]7 o9 T- W8 O/ o' c. m
$ }2 @3 J" b* X8 {8 G- Z6 A; \* y
set honest-service 0
( r) X+ U9 w* R# s
/ D$ A1 c1 G* r! h+ k/ Yset unhonest-service 0
6 W( [- F9 |' T3 k% L& ]8 C' s9 {1 y8 L+ R8 _ g5 B- S1 @' L
set oscillation 00 p* c9 i( B1 Q7 l/ i- }
8 D4 J3 o) f, J# X F. @: Y$ {' f: E
set rand-dynamic 0
+ |* G1 G6 t% i* D" pend
: ~1 B8 p* @* C; \
! x L6 k S/ s/ y, z, f8 s/ @. rto setup-turtles
6 Y, I% ]/ z4 L+ _+ O7 ^- @set shape "person"
( G1 R4 K/ E ~8 v4 lsetxy random-xcor random-ycor" X8 J3 W" |! N6 h3 _! z
set trade-record-one []
4 M: A3 O; _; O' k p+ Z$ L5 J, Y* [$ A- c2 F
set trade-record-all n-values people [(list (? + 1) 0 0)]
. g) J9 _8 I$ X: s
4 w0 E8 u, M9 i aset trade-record-current []& Z+ T( _+ P5 ^0 x7 F
set credibility-receive []
4 r, m$ g* X8 U/ i, D( L& ^& W5 gset local-reputation 0.5* ]" H8 K7 X; K! }8 x" N* r
set neighbor-total 0
" F& | T) V. [$ `1 Tset trade-times-total 0
, b* w5 \2 {3 Sset trade-money-total 0
' J" {6 X9 v4 Q! m Tset customer nobody3 s( `+ F8 x7 g1 j; M, F
set credibility-all n-values people [creat-credibility]5 L6 e9 t3 Q$ n4 S( P% C
set credibility n-values people [-1]
+ C3 X9 D! o2 p. Z8 ?get-color
% a0 P4 E9 _: D# q( o Y! C
9 a7 f% {! D$ Nend
! M+ }. l9 \% }% x2 H# x$ n }+ B2 o% N
to-report creat-credibility
! p3 e: k' K4 J0 Y* {7 O, @report n-values people [0.5]
; n5 x9 ^ c5 c# F4 |end
. y4 _. D" R: g% k& B! R S5 Q' v3 |. Y" P
to setup-plots/ b4 [& b! G5 i' W
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set xmax 30
9 l9 |4 ^0 b% J3 ?# F/ H7 ^9 t) r, v8 [3 u
set ymax 1.02 B( M5 `9 w [
3 n: d! T' |- g7 l$ Rclear-all-plots
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setup-plot16 O4 w& Z0 _, |
# ]8 h9 B( L$ E5 M! S
setup-plot2
) b) w0 Y) r: ^. o5 g$ ~& j
$ F# F9 a6 s" p) }' xsetup-plot3
8 l2 {! m* a Q3 c7 U+ U+ ~) F; h" Gend- r5 E8 Y# R& B- Z9 P) K
; c' \: ^2 ?5 X1 Y. A$ U7 h
;;run time procedures
6 f. U. H# o* M! n! ^# a: p3 W0 z' z. ]0 f% Y" [
to go% w3 Y( X! Y2 x5 V
- Y& O0 C; r. |# k, b+ }ask turtles [do-business]
: y) v8 o7 N4 S& ~end0 \4 F/ z4 B; ^( M9 o% L
2 f4 }) }% }* \3 cto do-business - r% ^/ s. y6 X* h
4 A1 T" E' L. l; E/ i1 a
7 e4 ~" b5 S; H% @% F/ E
rt random 360
- N$ U: T" W% U- d
0 b [ y* R+ z5 d Vfd 13 E+ a4 s7 Q7 ?7 X
- Q1 {+ n: M+ f/ @; Z6 `# W1 E% Mifelse(other turtles-here != nobody)[( _ v# U$ D( ]$ m2 ]/ N
+ D; t$ d2 E+ X! g- f0 Y
set customer one-of other turtles-here) I# O6 g K* C7 y3 [- _
[4 x% K. \ ^5 H1 A2 W/ p2 f;; set [customer] of customer myself5 ]* y" c4 Q! O z& u6 |; f
' P6 c" d- h2 s s3 q: F/ kset [trade-record-one] of self item (([who] of customer) - 1)+ R* A6 V% Y6 a8 }: n
[trade-record-all]of self
1 A5 {+ R6 K" t% r5 B;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# F! w0 F; V) C4 h4 q3 n' ]$ Q7 F# h: R \
set [trade-record-one] of customer item (([who] of self) - 1)
# F" { }0 Q' b) _ C& t[trade-record-all]of customer& W: E% e d+ J9 |1 ]7 z
- u1 \, [5 H( t6 w
set [trade-record-one-len] of self length [trade-record-one] of self
) N+ M" f$ n' n8 J& m6 V/ \ Z2 ^7 j" J5 p
set trade-record-current( list (timer) (random money-upper-limit))
$ z( `) p, z1 F" x) j6 m6 F; a2 ^ q' ~/ ]* u8 C8 Q
ask self [do-trust]
4 R7 R$ O+ T7 {8 V8 Z; A;;先求i对j的信任度
1 w7 N X5 l C, r, F2 O- O- ?, U; X0 z
if ([trust-ok] of self)/ W4 h, U" M9 ~8 ]9 _
;;根据i对j的信任度来决定是否与j进行交易[8 y3 O) ]; N" A9 c+ ?/ O
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ }: `5 R5 b/ ^4 z
) N, M; m3 G& V, [2 \[
& q+ J3 Y7 A- c0 F. }/ ^ G9 O2 f# |/ V4 E5 h( f
do-trade
. T/ r* m1 `5 O2 E3 Q9 |" d# t; C$ F' s! F) p3 C I3 o- ^
update-credibility-ijl% N! P6 L8 I8 {6 R
( E- O& l) H8 x, A( `
update-credibility-list
8 j q/ W% ]7 b; D8 j
" P2 {- Q* W& n: |8 J- f
$ ]: f9 J; L( G& h5 T, W, Supdate-global-reputation-list8 U6 O) |3 m& n% ]
5 V- U0 R# }% }" @6 _/ N
poll-class
+ u2 s" W8 o) L
: X" N6 t! x" m9 t0 ?& t$ {$ Vget-color
) E2 j7 K/ z8 X" Z1 O ?5 F3 N7 A. ?# s, b
]]+ t! O' r; h; k4 u) _. E1 u7 {
+ F1 h6 E2 K ]$ `' h;;如果所得的信任度满足条件,则进行交易) j4 T8 Q* D. n% q4 M3 U
7 |. I, D) @% c* H1 S
[" S& @* J @" n" X E
6 K' g4 u6 L" N- X" P5 e' Y
rt random 360
8 C# P0 v' s4 y( {: S) g: z- G
" R3 i# D5 C4 V5 `5 l8 [ Yfd 1# f N; ~( X; Q# z8 p9 P
8 d1 C2 d$ a. c4 k
]
' H8 [) e7 ?0 O K8 Z; H! C5 j0 K# G4 {' j. b& ~' j
end
! a$ F. S( ?8 I# h% j
) T: B( G1 P2 v0 ?7 R. zto do-trust 2 n: M8 B2 Z% _2 F) D/ F8 F2 }
set trust-ok False( a6 }8 w+ N3 E9 F) d, x
! k }+ o/ v+ R; U: Q" K! \. q) M* S& F: @9 z' e3 F
let max-trade-times 0. x# H1 r; F* E
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. q4 _7 P/ }/ y, j: l6 plet max-trade-money 0
+ @/ }' q1 K- ?' Y! X, S- i& Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 I& O. n) s5 B( n+ i2 j+ p. J' R& a
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. d2 S- Y* K4 w2 W) v8 Q: B+ U( X" o% O
% u4 I; x; L# l4 A: j
get-global-proportion9 v( K- V; T% e% ~- `+ c2 O
let trust-value
5 [* @0 V0 \- J5 Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
) j. M& g# y$ M3 @& H2 ~2 g' bif(trust-value > trade-trust-value). A8 \+ @! r1 Z0 ]
[set trust-ok true]0 I% s* K S/ H; k; x
end
+ Y8 x+ I6 p" X5 [( O4 ~4 `/ T7 Y- z( R6 X
to get-global-proportion
, y. _1 F" t" s8 y2 X, ~ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ }; h5 ~0 Y Q4 g) N: ?; A
[set global-proportion 0]
% G: L8 l% C& q! w[let i 0
# M& D6 I c$ I2 u, s$ L" ?+ P+ slet sum-money 00 }0 ]" i, k3 l1 h
while[ i < people]6 \3 C6 o. @+ o. P
[8 V' ?$ f$ D. P) `6 w5 s: E* z
if( length (item i
1 J6 f2 z! P2 M& U0 Z) c7 J; K) _) j[trade-record-all] of customer) > 3 )
0 B7 `5 v0 x5 E. f! @2 z6 S2 I[
" r3 O/ J9 I/ ]+ H. T, M3 m3 ]set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 X" Q" }0 ^: d l0 M& o7 X v, R
]) n& t5 B/ S k
]
2 M2 g4 _! g; r$ v3 }! V% Rlet j 03 d1 l) E! x8 o0 C; l1 f$ e
let note 0' \, V* f& A* F Z6 j V
while[ j < people]$ \9 T! x) x, l$ m
[
4 w* ^2 q% i$ p+ E: h/ m" w$ \7 dif( length (item i
1 b; U" I3 X3 m& t; P[trade-record-all] of customer) > 3 )# A N# @% E8 Z8 t1 z9 R2 ?# z) E
[
8 ~& [& L$ f* C8 B8 pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 F3 ]: D5 h2 x- t1 G+ R5 R[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 T. r9 K" ]7 F" ~/ D: }6 `% ~3 O& e
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 d* \1 Y9 K- U/ d' Y/ Y. P7 a4 c]
9 }4 F! j) K0 ~( ]& i0 `9 x; i]+ H; |7 E0 M6 } f' y
set global-proportion note
1 i- i6 j7 ?' r9 a]: [7 I3 z3 g* H! u1 o
end
7 {! k# L# w8 W9 J3 V! x
! v" @( `1 t3 a# C# ^( v/ i: Ato do-trade$ r& b5 P! b' g& ]# m0 }4 [5 ]/ o2 F6 ^# J
;;这个过程实际上是给双方作出评价的过程% Q( W2 P; j. y2 N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# I( }& U6 D: gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 L7 ?6 c6 c* t- n$ L$ Nset trade-record-current lput(timer) trade-record-current
. T I4 N6 b) F6 Q! b) U;;评价时间+ i5 k1 d& A9 d
ask myself [# B7 V. {3 z5 A: t ^
update-local-reputation
4 D; l+ q4 t5 n$ tset trade-record-current lput([local-reputation] of myself) trade-record-current1 }6 T E, P9 z$ g4 n
]
8 |9 U& j0 W/ W! H) t) N* B# Bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 B- U% ]0 P8 F" z4 J% f: n;;将此次交易的记录加入到trade-record-one中
( R& t6 }2 h' ~0 @( U- `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ i4 S! ]% a# f/ o5 dlet note (item 2 trade-record-current )4 P ?- {+ y( q
set trade-record-current; V) X6 }6 a: |+ p, _4 f* K4 u
(replace-item 2 trade-record-current (item 3 trade-record-current))3 b* [: P7 y7 v, U5 a
set trade-record-current* A& U* B9 V; A+ i1 F9 |! s
(replace-item 3 trade-record-current note)3 y* m- q$ W& j4 A! a+ \' x
6 p5 p7 R) g, X3 L
I4 f; l* R$ }1 T/ f# i# rask customer [2 {" m7 q7 y. k" x
update-local-reputation, q3 l l' h1 B
set trade-record-current- _8 b6 G. O* r; k2 ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + J6 I, j5 O6 I) ` U$ {; G y/ l( C
]
# w! B8 L- q* [2 N$ {1 ], w4 Z: T. K3 }
! O( W1 D: c s: Z9 M0 g- J) r. w7 h& {/ H
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer# F6 \& B1 K5 O: c+ K: Y
1 ^2 d% t$ r* a9 r9 T" u- ^set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), p% N7 p5 z* a
;;将此次交易的记录加入到customer的trade-record-all中. C$ m6 U8 n. H- l
end
" ?& x: i6 S, F8 E7 P/ N' q, L; y$ q) S" [
to update-local-reputation
! U- @& }* W* l T2 o7 \set [trade-record-one-len] of myself length [trade-record-one] of myself+ E$ B# {- \: J# [; U, r
/ I9 V. E) C& R" F
* V3 G/ s) ~0 G( V3 J- `
;;if [trade-record-one-len] of myself > 3
7 o3 I$ j% Y. u. ~! w# D0 vupdate-neighbor-total% | p1 m3 ]2 w; i" Z. P* [
;;更新邻居节点的数目,在此进行
0 K9 o0 e! _1 ~; klet i 31 Q% a# L$ R. r+ W% k
let sum-time 0+ V" n% a! M P& ?; G" h& r
while[i < [trade-record-one-len] of myself]) r1 q. f' y) M) x- f/ `/ A& x
[
. |; W0 e6 e, Z* t. eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# B V2 b1 l9 y5 D9 n3 jset i2 J6 t- e/ T' \2 q! ?+ m
( i + 1)
. A3 z4 f1 s$ ?5 t]
0 R1 Z0 }9 l- B* ilet j 3
" |* q& D u8 R! z+ _let sum-money 0
/ B( A& u+ q) u5 pwhile[j < [trade-record-one-len] of myself]& T f! s) k: A3 ?" Y2 @7 T7 o
[
& F u; G2 c1 y2 A6 G/ k9 ]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)
& _( Z' z& r/ j' Qset j
0 k/ I8 E: W, K" W( j + 1)
' ?4 P7 ?0 S4 U- p3 M]& V; ?+ q* V, J6 s9 l
let k 3- P" e' O5 x! y# H& [
let power 0% s2 h4 n9 G: v" K/ l! D% N
let local 0- X1 H2 |6 ^) M p+ e1 V
while [k <[trade-record-one-len] of myself]6 u/ c) W0 _4 }2 B2 p
[6 A3 `# j* V, v0 M* N, D
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)
4 Q u0 D, ~( L/ P7 D Vset k (k + 1)
; s) Q2 `4 M( D0 t- h! D]+ F" {0 R: N+ U% n! x5 I
set [local-reputation] of myself (local)2 P' j& d2 Z1 P+ I, ?
end' X/ V; A8 ~& B9 o0 B5 u+ F
. o% ], m0 k( f9 ~+ d, ito update-neighbor-total! A& d0 T& Z- F9 X
! q M# R1 f: m2 J: Z6 @) a/ ^2 |9 I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" r0 c* \ m P" Q- w& r" D
- E: X4 e. `* d5 d3 g- `/ \# L: Z0 p" Y4 `' }" c }
end
" f6 Z8 a+ ~) m6 _! ?
+ \9 P5 P% y7 H( }! K% g7 Jto update-credibility-ijl " d2 i/ M' O: b* j6 t
3 Q. M) f8 n A- b" L! Q;;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。
/ I; J" J( m( Z9 plet l 0
# O+ j0 `+ n" v/ b6 \( ~9 R2 jwhile[ l < people ] O1 _; T+ s/ @/ H7 z
;;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
3 ]7 t5 `5 i3 Y4 u[8 T! v: _: I4 C7 m# k: [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
- n: o1 f8 |+ ]2 s# n, Xif (trade-record-one-j-l-len > 3)
) z$ ]9 A; T5 u8 R& V7 G+ [[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 h/ g& ? \7 o& x" i" z& l
let i 3- s! }5 K8 X, `1 k& X2 K% X
let sum-time 0
4 @5 I' `+ o9 k) _5 w* ^ G- kwhile[i < trade-record-one-len]+ m( R0 e, B& G# j* X
[1 K5 p) e9 k% l- i+ j
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 h: ]. G4 p2 ?# tset i
. s. I) g) y% R( i + 1); X9 J9 v4 x& x) Y9 f/ M
]8 A* U. s/ P1 B& U6 F
let credibility-i-j-l 0( e3 n ?1 P, n
;;i评价(j对jl的评价), B. P7 ]- I- K4 o \1 ~9 r* U
let j 3
9 C& ^ \, B) R' L4 mlet k 4
/ Z. v$ o. a' P2 p5 f1 j, u: Ewhile[j < trade-record-one-len]
9 |8 z' K: B* F; o* W[: l+ j3 [: S7 X# z/ z7 z
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7 E3 b8 e- G! I, n3 B
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)9 w9 G7 {: X8 |# w
set j, H/ T& h* v2 U, }, J6 [
( j + 1)
* |% D6 a( _& B& K7 l# s]5 E3 S" ?1 P& y: W6 }
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 ))
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( `3 Q" [& w" T" h8 f" `# i1 F
4 e+ I" B' x) U4 Olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 ^2 y3 M+ y) ]( @% @# k;;及时更新i对l的评价质量的评价
: }8 @: c9 [ pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ z8 s0 S0 C6 Q7 W( H3 |% @
set l (l + 1)
% e+ P- _; \1 d5 \. T" a; |$ s' P]; `7 k# y, s8 a; B3 j( x
end+ O0 p' T% a4 |
9 ?( V" X3 [; H @
to update-credibility-list- E/ g- |& l8 n. g& t9 D( b
let i 0
9 U- |: [7 V* F; h lwhile[i < people]
/ e2 G2 E8 `4 Z7 ]- S/ W[
& g+ s [. y5 ?, M! O0 blet j 0- [" e. ]1 I1 k X; \) E; q
let note 0' j5 _3 v1 |$ i
let k 0
, g3 `8 d1 `3 B4 w( H0 U: n Z# l;;计作出过评价的邻居节点的数目( M+ c+ ~+ I. Q
while[j < people]2 Z6 ]* x9 `' Y- f
[
* I- o9 D4 h/ G# l2 o/ kif (item j( [credibility] of turtle (i + 1)) != -1)
3 O) j- a3 k* d5 c: D: w1 T8 \- j+ s;;判断是否给本turtle的评价质量做出过评价的节点/ ]: { Z, r' L: T- N- x' `* r" \) R
[set note (note + item j ([credibility]of turtle (i + 1))); t( h- R! d& N& n
;;*(exp (-(people - 2)))/(people - 2))]' I' r3 E# F1 p) T9 m4 H- C; z! m
set k (k + 1)
0 n4 D7 z6 _2 x' ]]
, b4 k4 Q: f2 [! x' c0 I6 Z9 Z# b- aset j (j + 1)8 h% o* u" _9 Y% w4 Q: a
]% O4 z' i, S; z, i
set note (note *(exp (- (1 / k)))/ k)- E/ n: j+ E9 z1 _
set credibility-list (replace-item i credibility-list note)8 W- }0 S4 Z: e- J* D
set i (i + 1)
4 B4 M( o) |6 k( ?' _]5 l+ e o- R! L" i( G
end! B; N2 k" m% Q4 h6 h. W
' B/ l2 w) R3 x1 G6 A/ Wto update-global-reputation-list+ q7 k! W7 K; d6 ~& S+ M
let j 0
- i7 `' @9 m3 Mwhile[j < people]8 s6 e4 }4 d0 Y4 `& J K
[ Y* i; F4 A: ?& K' c7 q- X1 v4 v8 A: u
let new 0
- r7 U6 ]% J6 I. K1 O;;暂存新的一个全局声誉8 o& l: l( A; J q
let i 0& t7 ^) G1 n; j
let sum-money 0
5 h) p6 [/ h0 X- H9 ~; R9 s$ ulet credibility-money 0; M/ B; L' ]7 J% U) h/ g8 h
while [i < people]
' k3 Y' A5 k/ C[
% a0 m9 b2 c6 q" L$ yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# j" \, g2 N; M* }7 ?set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ w: A, G/ T" J$ E6 aset i (i + 1)$ K5 s7 c$ q. y7 z5 j+ {: h1 c
]
& ?! b; i) M+ v1 V# i6 p/ B/ Xlet k 08 q. _2 d2 ]1 Z- ~0 U; v
let new1 09 l/ |- k8 l0 J; Y; a
while [k < people]
1 x* a, Y1 I3 G- `. \5 ^ M) k1 m[
) T4 O, ~- a3 t" |( w% r( Xset 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)( W: `3 L$ a N4 U+ u" v
set k (k + 1)
$ [1 T, Z+ G; F. w] A% r) r4 b0 d& `2 J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) V8 S4 X& }/ |$ dset global-reputation-list (replace-item j global-reputation-list new)
* u" J! ?6 o: I r# N6 }7 aset j (j + 1)
# y( ?( d' U3 ~: i5 @]
% |9 g* |" n7 m/ \end1 o& X% I- z# H5 d0 u% y
( f9 p8 Y! i8 X. a+ u4 p
) m2 `! i$ N% D
% S, {0 f+ F, |3 U1 i, l$ L1 cto get-color( _9 u' x; X* D
4 z8 s! J/ H4 xset color blue; `7 D/ H- V/ ?5 D! Q7 J( G' g9 F4 V
end
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. u3 \: R# `7 \& L4 F$ zto poll-class1 W }- F- t# Z
end
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to setup-plot1
3 r; z8 w* T- Q, I. ^
+ s* F _2 q: S v8 q4 g" ?9 t# Zset-current-plot "Trends-of-Local-reputation"- S( U2 J# V9 e0 v
+ H3 l2 l s7 R! `! o. G; zset-plot-x-range 0 xmax9 \9 b' E4 b. t5 N
* [* |& q! `" g* `. Vset-plot-y-range 0.0 ymax
! l; D! c: f) y. `end
5 O/ ?& W7 T; ?' K6 I- W( p
' ]( X) k' A( |! F& h, x9 X( Vto setup-plot2
, L9 x. b6 c% ~) o2 |. w
6 P1 y; E! S; y/ Hset-current-plot "Trends-of-global-reputation"
5 R" ~6 p9 Z/ r# V+ k! K" ~: a0 m
9 F- m y/ n) U6 n Zset-plot-x-range 0 xmax: X0 p% W# y' W5 X9 L6 B/ s# C% A, B4 q
* L( r- ~( J! R4 |set-plot-y-range 0.0 ymax
G& r5 b- _% t3 Nend% j$ }7 v. R/ x! l
: p {; l6 B+ L" [( Gto setup-plot3' E% l* e. X" U9 Q
. x0 Q+ Y+ N5 e, l5 f; v- D
set-current-plot "Trends-of-credibility"
/ |( x* B! U% G7 B: u9 K* J; G3 z- ~; P- V! V$ ]
set-plot-x-range 0 xmax
5 _ D( v; b( M; {, H: Z$ i; b. r" w: o' s1 r& X8 [5 T- ~. R
set-plot-y-range 0.0 ymax% G, ]: i% P- a4 S/ U9 f
end5 q A# E5 C- \1 {8 p; T; n
% J2 s0 y2 L, M. K/ \to do-plots4 F& H b/ E; f: y. d1 M% r
set-current-plot "Trends-of-Local-reputation"8 h7 g+ p- X, z: G' R
set-current-plot-pen "Honest service", ^: t/ r( i& C I( ~0 Y
end
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; [ x; R. J" {: i, q: S[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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