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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$ U9 k" @) \ T; y9 I
globals[& h( B# S( G0 j% ^/ l
xmax
3 V I! b2 J3 O" A, Xymax5 i# _$ R' Q6 L7 k
global-reputation-list
# b: A4 z9 N& L
, b+ [* f. H/ e+ _! G8 O;;每一个turtle的全局声誉都存在此LIST中9 R$ M- H4 o* z: s7 _
credibility-list4 w1 ~) O! n, b1 g# b% j0 _# K
;;每一个turtle的评价可信度
9 |0 k9 Y1 Z/ E f- |honest-service
( b/ j0 k( i" I3 H2 a$ g" Dunhonest-service
/ r- y# M% s7 w$ b% Aoscillation% P% c9 Y0 @( `' S' q
rand-dynamic
3 l% H, ~7 I* T]: N* @+ A# L2 f6 D, M
% s8 g4 V. y, ~2 h" }turtles-own[
* ^/ N1 M- N: x2 Y$ Vtrade-record-all
) O( k U- V9 t& G0 p; Y;;a list of lists,由trade-record-one组成/ c2 Q! r2 ?. Y: s4 a$ |- g3 [: X
trade-record-one
# l# j' z3 V3 g& Z" n5 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
) w7 [6 l! y* w
3 p: l0 w s7 J0 ~- i% [( Z @6 l6 k- Q;;[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]]
- j7 H( t6 a+ n3 U6 gtrade-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]
0 d8 y4 R2 `) o$ X6 K5 y' v2 x; D }- Rcredibility-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
5 S( H! Y. G( Mneighbor-total
* b6 I9 }/ K4 r p4 j;;记录该turtle的邻居节点的数目- u8 d6 i% W7 W' u1 \
trade-time
: Q. h& o: [$ d8 M/ [;;当前发生交易的turtle的交易时间
, X8 l" p" t# i/ tappraise-give1 @5 v! \$ V+ G5 N8 m! ^# ?
;;当前发生交易时给出的评价, Q$ F# G; _9 x" y) \
appraise-receive
: X6 f* c5 |7 ^ b0 ]1 W9 g;;当前发生交易时收到的评价* F' N6 p, j+ x0 m) H1 h
appraise-time- }: L5 o; O, I4 Y% k( G
;;当前发生交易时的评价时间6 N L! h6 p" z5 X" l7 @0 ~, I; Y' y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉2 j z7 }" ?( [" L
trade-times-total
- r+ n; B- U+ y* y0 [$ N: x* X;;与当前turtle的交易总次数
& K) w# `: C& |" L3 X- x( ]trade-money-total
. W8 H9 L3 Q6 C/ a7 y;;与当前turtle的交易总金额
' s P# x @& Q/ H1 |1 X7 H1 v' J- _' olocal-reputation
' t+ s; y# c0 W+ O; nglobal-reputation4 X6 {, m" B d1 }( b
credibility) J. G! O1 D5 n2 \- K. Z. B$ P+ D
;;评价可信度,每次交易后都需要更新
" ~# M" B3 q$ z( q" Wcredibility-all
! W2 z0 H$ z9 I$ K;;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, b9 k$ R- I4 `/ z' z2 }8 F
7 m4 z+ c0 T" Y: R# I/ i
;;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0.55 y, x( l: t, b& k) j9 M/ e
credibility-one
5 _4 F4 ?: d: @/ j$ 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
6 g) B& Z' T- I) \4 lglobal-proportion
' u( S& `* Y4 `& s; o+ c% ucustomer
1 I2 D9 Z" ^- k- w8 P- hcustomer-no
$ {" X+ a" i+ h/ ^9 ltrust-ok
) `, x: m8 m1 b8 L# d. b P! `trade-record-one-len;;trade-record-one的长度
! ^2 ~& C6 O+ h]
* @4 p3 Y" A7 ~! {8 i% i- N4 `9 t% g ^* Q9 `
;;setup procedure
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to setup9 u+ b& P: \$ F# Y2 _$ x7 G
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ca
2 T5 R$ V+ ^3 } P' h6 c3 s
F# S+ l' z5 h% i3 y! U" S% o( Uinitialize-settings
! `- |: ^* ? m/ m. R& q
) J0 S# t) y% {% b3 n+ Q- `/ L5 Jcrt people [setup-turtles]( d7 A7 d% q4 v" h7 E
( ?" R0 Z( }( p8 Q
reset-timer
0 T7 S& v& `5 a0 Y5 F& w3 }1 ]. i5 t+ m
poll-class; R8 L: I! R/ u" a
" ~' C2 x' _" E( K# j
setup-plots
% ]7 y N$ N. Y
+ b. j2 w; t2 {% ]% ado-plots
7 d1 H! v! h. U: W& v+ L8 Rend
# E7 f% j( b5 d! Y% E4 F! q) h: {( f y
to initialize-settings
: S A) k0 a& a* g' h6 X$ l# f6 j
2 k% l% ~/ e& O4 I# n, xset global-reputation-list []( E& R5 p$ H5 V. ~: @% g$ ?* K
8 d+ G6 Q6 \# \; \set credibility-list n-values people [0.5]/ M3 H& i+ T, T/ P
7 p! Y6 i# ], y2 pset honest-service 0) Z+ C% t" Y0 |
, [# A- V( Z5 l' R
set unhonest-service 0
% U1 `4 m3 \$ q/ v
- \. f5 K, m6 Wset oscillation 0
& F# Y$ O3 F$ j
/ q! P' @) `0 _6 I+ Hset rand-dynamic 0
/ V2 o" ?) E0 ?" k+ Kend+ L, D; C; e8 X8 K! {3 {9 f" ~
, L5 ?4 j. @$ Hto setup-turtles ) c, \, U2 D) L2 ?. [* @
set shape "person"/ B4 L; q* U4 N7 T2 }5 s
setxy random-xcor random-ycor
$ X/ W S; R! T; Z- h9 kset trade-record-one []- G& Y/ {) P. X2 k
- S" i; v8 Q8 w1 X A" u
set trade-record-all n-values people [(list (? + 1) 0 0)]
: {# j n8 P( R: c% }" {% V `- k- P) Q
set trade-record-current []
3 A% S& o2 X7 T2 eset credibility-receive []2 f( A5 c3 l$ K8 x
set local-reputation 0.5
) [/ ~& U4 O4 S- Y2 Y+ d( b9 [; M; @3 K) Zset neighbor-total 0- S j4 ~: U: f! q0 B! _
set trade-times-total 08 F- I/ r- S- I. {
set trade-money-total 0
! c: e7 m) J. Yset customer nobody9 n* r. \2 D. J; w/ Z) L$ ~ x, n( ?
set credibility-all n-values people [creat-credibility]) o y) x( U) [. H* i! v* t0 i
set credibility n-values people [-1], W- Y1 _2 T+ v, |, A+ q
get-color
0 k ?. r4 o, `# T: {$ i- }! M, H+ K1 D" F
end
3 j0 y+ n2 ]. u* |- B
; H% E$ p7 H/ Y- D2 f& W4 x& R8 _to-report creat-credibility
9 W. y* s1 |3 k/ O" E8 b7 preport n-values people [0.5]
. I* s, h' I9 h5 j8 L$ V7 k3 p4 M3 Qend
j- l& N1 ?: [& {& Y/ Q! ^9 T) Z9 @, k! S1 Q& }! L# ~
to setup-plots
" r8 E* z. k! b; p
$ S" U `: l7 e9 W- W1 O. Uset xmax 30' z; ~. Q A" G" k/ G
% }, p: m6 J$ u" \1 y0 Z* X: cset ymax 1.0; Y1 V+ x' `2 V" S8 g* @ S% P
, o! ~& Q( N1 V6 R- l6 y& j- x
clear-all-plots( A* l' n6 D! x$ w/ l F( P
# V+ o3 r$ Q1 ~" a+ c4 x% P; f
setup-plot1
) \/ t p7 S: L
1 Z: E) h7 Y6 C0 [' Z5 Ysetup-plot2 V, V: H+ }; j8 \7 z0 g2 ]) W
' R( t2 ^( K$ I3 g+ S1 hsetup-plot3! v i" {( i$ {! L/ P) U
end
; G3 x/ K& G- E$ r$ ~3 X( b1 C+ c
;;run time procedures
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to go
8 G G. w& p8 y+ s9 h
% v& C8 j( Y0 f' d. wask turtles [do-business]" J) W1 n" G4 \ B) r
end$ N7 ]$ j2 s) p, B: }- l) V! d) F1 h
; K- M+ `) d) H+ f# Ato do-business
7 D0 \% O1 A* A. ?1 }' `2 o# y. ~' h
% x7 J$ [9 x' ]5 d0 q3 ?rt random 360
" U; B% N4 Y% u ?9 Z; s1 `9 u6 a* [' b# C; }- Z: ]& H* o' @. U3 n
fd 1
7 V ?" y4 h5 |
9 K5 S5 c' B' y* U0 xifelse(other turtles-here != nobody)[
# W9 x4 Q7 G& U# e
; {2 E% O$ P! P, Aset customer one-of other turtles-here
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h- {; O! O% P! i4 j" O! };; set [customer] of customer myself. y& L4 F" g: L5 w% M- }
- [: X, o! q: C- h7 K8 D+ u/ n! Iset [trade-record-one] of self item (([who] of customer) - 1)
9 p- _% {6 M$ ?3 J[trade-record-all]of self
0 d2 G* `' h+ ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) e& Y" j- q2 j; H" ^/ ^7 n
& n' s: X2 {8 d4 f! e
set [trade-record-one] of customer item (([who] of self) - 1)
$ I* p( W, z8 U' M[trade-record-all]of customer
6 P: \8 C( K4 c2 a; j% _8 H5 }! E
: _9 _+ i! ^, A/ {6 a$ ~6 K% A8 Z' dset [trade-record-one-len] of self length [trade-record-one] of self! s2 B/ ~: Q; b
6 O' q$ f) J5 Iset trade-record-current( list (timer) (random money-upper-limit))! L4 D* W& B: d! x
% l, ]* h0 c$ V3 nask self [do-trust]
/ b2 e5 z/ C/ L1 R$ e1 I;;先求i对j的信任度
5 t! u% _' I+ f/ X/ y' {
$ ~% R& c0 x7 P$ Mif ([trust-ok] of self)
, ~& E% Z* S$ r' Y: s;;根据i对j的信任度来决定是否与j进行交易[, V- u9 I! `* ]8 R8 e5 ?
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
, U* R9 f/ P: I% w$ N0 ?
0 o1 {' A6 O! m- ~[
3 | r# I/ r1 V/ C
' Z: P- v) F8 p) c) Hdo-trade
7 E+ E6 x' S/ n( s
2 [. p: [4 `* W K& _; n4 `# j9 xupdate-credibility-ijl% y9 n9 @# |! H" L3 n
" h" C! J( v0 ? C) ?update-credibility-list7 s* Y" {' E P0 `; S# u' F- g
! g9 I T# c. s4 Z4 ]2 S6 i' ]
+ y8 P; E' ]% R" w/ A
update-global-reputation-list
& V4 l$ \" `6 ]. i w) ?; Q- V- F4 @% }
poll-class x6 N; h( _' Y. {
( J. L* e( p o: T& `3 T+ @: M+ T
get-color7 e" H6 h/ J1 r7 Z& I
$ U9 Z5 B. t$ Q3 V# H]]
; _. ~8 d# [9 w) h; R2 l; v' y+ O
# V( O4 E, s+ i( ]" j1 N9 I( [;;如果所得的信任度满足条件,则进行交易
7 C- H9 Q! O: C! K
/ t' D4 S' r$ I0 B* ~: I9 N[
; u+ f4 [% C& ~' Q9 }6 x" i" e% g& q" @$ @! z; L
rt random 360% P% ]+ v2 ^* F' e* t
q) i. o0 \5 B- u
fd 1
7 i1 g- \9 v" w# l2 |
0 h( |+ V9 O# ^; x& q]
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end6 Z/ y2 F* C' a6 X( p" ]
: O+ Z5 C, E) _5 R) R& yto do-trust
, f3 e7 c) K. |4 ] c; iset trust-ok False
8 \3 u) ^. p9 w( l' W! o3 V+ j
4 y7 o' ?4 s$ [4 a2 f! w8 `
H T" s( U# X6 m9 |( glet max-trade-times 0! W0 ?/ T. f, U9 G
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]+ `, V5 @0 J* k% O9 A8 w
let max-trade-money 0
: w, u, n7 K9 ^9 L/ i- Kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; Z* S. Y: C+ N3 tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, P' ?+ h* L3 t N4 j( ~, d2 G# a4 n, h$ J5 O' N
$ ]2 F8 Z6 @ @- p
get-global-proportion, r( z, a# A# X+ k) d
let trust-value; O9 _' _& T* U) u: T9 \
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)
" d6 c0 ^- G) @if(trust-value > trade-trust-value)
5 Z# L: i# s1 C! K- V9 [[set trust-ok true] ]9 H" U7 P+ s# O6 H. @
end
- e4 @$ y! ]3 {6 @( J2 @0 n3 z3 m4 C3 Z+ P: k
to get-global-proportion
5 e, k: v3 f% ?& m# Mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) S) ^% G1 D E[set global-proportion 0]
2 j, g$ q3 b5 V* z/ w[let i 0
9 ?4 _& V v; U Ilet sum-money 0
! q, K$ z% w5 t/ `while[ i < people]- q& |5 E3 K# r6 I/ n
[
2 r2 a5 b* w. O; `if( length (item i5 h* R! [$ ^) W0 n( u4 g$ P$ f$ ^
[trade-record-all] of customer) > 3 )
H% Q$ g( ]7 Y* u) u[' P/ t# o3 ?7 s* [( \: W1 i
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( u4 E+ @: S/ ?0 N$ j. H. a4 P]$ z3 O0 Z# f; J$ R% _
]
: Z( P0 f9 a4 _& Z$ I5 zlet j 0+ z* a- y1 r2 k* ~- C4 Z
let note 0
5 k0 r. w3 A$ I2 F( swhile[ j < people]% H: f. J3 z) \( Q. Q5 ]7 K
[7 l! c4 X2 h" P* U" [6 O: U
if( length (item i
5 j) v, W a% e3 P/ B0 G1 U[trade-record-all] of customer) > 3 )
& t' J$ Q- A$ d0 p6 f; x[6 J& r0 t# x# ^3 |$ f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ V; x2 [7 _6 i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! \/ b% w0 \' d% Z; u5 @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 C, B9 d+ l/ Q; H5 G
]; d( j7 N$ }0 s6 S; Z
]
3 [- A L" I; b5 g7 c" _set global-proportion note
9 Z$ S+ p$ G: `" O' r, U9 O]
+ n* @% e" I# `4 U! lend
! Q% ?0 O3 a8 _7 ]$ B( f1 V- L% r1 Y- @' _+ T, V: j* {# u
to do-trade
J; {6 ^2 j9 Z- ^" ^;;这个过程实际上是给双方作出评价的过程9 I5 J, O# g5 M! K3 z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; N6 r$ X1 I D# Z! ^. U, ?: B0 C! V% B
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 A p9 H( F! x8 J9 \/ i) f) M3 Gset trade-record-current lput(timer) trade-record-current
; D; Q- ^7 b, E! i4 v;;评价时间
) X. z& N) g7 f! J8 J; eask myself [: @; K, K6 L' ?# I$ r
update-local-reputation) W* L- k2 C2 W+ B* B5 g2 [
set trade-record-current lput([local-reputation] of myself) trade-record-current
" h8 `' h; n8 P]% ^+ s" [! K3 j" f! B3 n4 y+ b
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 g- q5 i- }5 Y6 C1 A) R, l;;将此次交易的记录加入到trade-record-one中
0 G, F9 ], q1 X7 }+ ~& mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 C7 C7 \+ T2 f: b* E- z' Ulet note (item 2 trade-record-current )8 ^8 E/ V6 }- Z& C
set trade-record-current- w4 a0 {9 A" |" r: z6 j
(replace-item 2 trade-record-current (item 3 trade-record-current))6 N; U3 n% N' I! C* C3 N: k
set trade-record-current( n" R8 l5 r) `, t' ?
(replace-item 3 trade-record-current note)( R3 m( b5 n" O" C
4 A6 d& E5 B9 P/ B% _
9 x o) S" m& E' b, @5 s3 v2 \) _
ask customer [
- z, L; ~1 J: t4 `1 W- K( }" eupdate-local-reputation
- f, F! ^3 D* f2 Kset trade-record-current
5 J) x7 P8 a7 v I& z# v9 U6 e(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ o- o& m/ m' Z% m9 P8 u]
" q" \' j2 \$ R. X5 [* Q; ~+ c P5 o! R! T: h2 c
5 [2 b# T$ O; ^8 k, w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: O5 ? j9 w6 j7 U$ u& m- z2 C% N% V/ ?& Z( t2 F8 j
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
B, `! D5 N0 s* @3 ^9 G% q1 h;;将此次交易的记录加入到customer的trade-record-all中4 C# ~1 _ i& i% D
end4 a; j5 Q" D! u9 H# y5 _7 d
7 P6 W" [ k; M# s9 W K& H: e( G5 a
to update-local-reputation
# N, B# ~3 `0 j5 E" ?2 k* ]! Nset [trade-record-one-len] of myself length [trade-record-one] of myself
# s7 }& N* \4 q% l3 ~& p% q0 ]+ o& g9 P+ x# ]2 T: k; l
' h' K' T7 X7 A/ F$ F;;if [trade-record-one-len] of myself > 3 6 j% C7 l' Q) W
update-neighbor-total1 T$ M0 ~2 h) \* v* ~- A- o8 L
;;更新邻居节点的数目,在此进行 \# _6 Z& P) y/ ^3 T) h$ M3 {
let i 39 s) ?5 c( I. h( P \% \
let sum-time 02 n- e3 q. U1 `5 ]2 L/ U2 d( m6 ~" d
while[i < [trade-record-one-len] of myself]% D* F) ^4 ~6 d
[
" s8 X5 a% h7 Xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* t* N9 H& Q) i' p2 s6 Y
set i& I6 f1 V1 z% ?$ h9 |
( i + 1)
" L' C2 n" v S- w8 E- i3 h K- g]( _' y5 j# Y F$ ~. |8 V+ ~
let j 3
: L! a7 R2 G# N& rlet sum-money 0' ^3 H7 H8 Q1 `; ?; G# P2 d
while[j < [trade-record-one-len] of myself]
0 q8 D9 U6 M2 p8 J8 \9 Z" J[ D1 w( ~/ S# o
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). h* q( w: t; B$ ]/ s- i3 v' O5 z
set j4 i+ c0 r4 K$ C2 Z
( j + 1)4 q# }- B! R$ s! P3 a
]
. p1 _' z, o: t" u- ulet k 3& K) d8 q1 o1 _5 u/ N" O% a
let power 0% S, k J; X8 l$ c& [8 Y
let local 0
$ A7 S& m' K: R8 rwhile [k <[trade-record-one-len] of myself]
9 F4 l- W4 @ |[
/ B7 p, p7 R5 j5 F) mset 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 o' u1 t: B( i% W; p% }set k (k + 1)% M8 I0 }! [; b+ G& e4 s' L( a
]
/ O: J& V! H8 J/ bset [local-reputation] of myself (local)/ @* v% v8 o, X) ^* h* k9 O) `
end! w# E& P u/ M/ U
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to update-neighbor-total
5 Q3 z; `1 R, x- _- p) A. i2 |1 ^: x+ D3 `6 k: Q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ] [7 G+ o( T! z( X3 J& L
, X2 ]& a. x5 m6 Q& v! i. l' s
! d2 U6 w$ m! K) Z8 D) r$ Rend
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to update-credibility-ijl 6 x: u8 ]: i( a7 R3 l
* x4 s5 F( R- W8 a8 e6 Y
;;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。' `- ^$ p: G1 Z/ j$ I* h3 F+ _: c. T
let l 05 W# e7 ^* ]: b% k+ C
while[ l < people ]( O" s8 i! \ P
;;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) j/ v5 Y) E) P! O2 X8 d& s! a! O
[$ g7 q' H( s6 I
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): O4 s5 f8 A1 d- l
if (trade-record-one-j-l-len > 3)
( C0 m+ V8 A* {8 s5 }3 K5 E& 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* M1 D( i+ U& ^4 Q( Q/ {
let i 3) L5 j, j" x0 |& P+ V% h
let sum-time 0+ H' I0 X) x$ F! U3 p2 W2 t
while[i < trade-record-one-len]
^) ]( J) n6 d$ V) e, i[. I2 j i, B8 u$ O8 v3 J0 g
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 c1 ?( I& @, H6 ^set i
* N* A. c+ e* d( i + 1)% T' G! Q6 Q* J
]; x( C6 f7 e, x+ w. Z
let credibility-i-j-l 0: r9 g. q' q4 s" ^; U) t7 s
;;i评价(j对jl的评价)
' a5 h/ U; _ e6 U; V6 K2 c; {) Olet j 30 d! Q h! N2 u0 X+ U5 G& i
let k 4! s8 `6 q0 D9 s8 p
while[j < trade-record-one-len]) \6 Q; N& U0 H! e
[2 s0 i4 a! P5 [6 g
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
' t, v$ L# {9 @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)
: n3 `5 v6 n9 g' k2 J) z" uset j
- l$ i4 k0 B; [0 P+ ^0 I9 O( j + 1)
. E, k4 C9 P- f, v. T, D]7 C2 @1 z9 j }
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 ))
$ |8 v+ h- n0 A: ^! ]$ G A$ v
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1 [1 G* f! E2 s+ t0 Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! m& Q, }0 [2 C" D
;;及时更新i对l的评价质量的评价6 o& \: W6 L" v7 Y% G: }
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) J7 K" W: E0 g, [set l (l + 1)' M/ ^3 C8 {6 g' F. q4 B, V R
]3 ]1 H4 u2 V! E2 m% T
end! s$ `6 {* Q8 p
7 P: i) E: t m# q7 _7 ato update-credibility-list
" S/ P# \6 d( }0 E4 |let i 0
7 E4 T8 X3 a+ K* N, x2 Xwhile[i < people]) o0 _1 Z9 `% B3 C2 w# n
[- R9 ]4 o" ]+ W; y
let j 0
" N) z Q/ ?& i4 Nlet note 0! s/ q$ Z5 y% L5 C! t5 i- l2 z X
let k 0
0 D( ]4 y1 f* z/ m4 L. Q;;计作出过评价的邻居节点的数目! a L/ v6 R( @( [- {' t
while[j < people]( y8 h, R2 s x6 \, [; j* r/ R3 r2 P
[* ~. b4 u X3 g) X
if (item j( [credibility] of turtle (i + 1)) != -1)
9 Y, k2 ]. V$ X) ~0 d% z/ n5 i;;判断是否给本turtle的评价质量做出过评价的节点- J x7 U3 }- O, b5 k9 L0 A
[set note (note + item j ([credibility]of turtle (i + 1))), }2 ^% F/ N2 u# m8 b6 s% g
;;*(exp (-(people - 2)))/(people - 2))]1 O" I$ M9 ], @/ p. t
set k (k + 1)4 y, E( a: W& ^0 C& g, W* c$ P
]
- A1 Q9 U( H' g) ^' A7 T9 ?4 Eset j (j + 1)
) ~. u, A" k9 N% Z' _% Y2 n7 y]- I/ K9 r1 B6 m: w
set note (note *(exp (- (1 / k)))/ k)
, T% v) f. \; @+ @0 m# uset credibility-list (replace-item i credibility-list note)
9 @5 ~7 x# ~$ T, y- N; K }. zset i (i + 1)
# Y1 E5 m: X6 p7 W+ j], C9 n' B$ b. Z4 |* F, ~* C
end, T. u' \6 L8 ]- y2 b
5 v# ^- Z- K5 E* C! W
to update-global-reputation-list
I$ k4 ? }5 Z# vlet j 03 f& E! A2 Z! C! r9 W8 {3 ]
while[j < people]+ Z/ e$ {+ z/ Y! T9 |* I' f
[, h# `: `7 v9 ]$ ] V
let new 09 j8 E2 v( @2 C) ?# G
;;暂存新的一个全局声誉
$ [- {' O7 t L! M( J9 glet i 0
0 O4 Z% G- B; N7 R$ A& hlet sum-money 0
! f$ R* x8 {6 d' W# llet credibility-money 0
& e2 p+ v. Y3 w' Z4 T9 bwhile [i < people]) |$ y# Q1 E5 X; q/ e& f2 Q$ O+ p
[
: a" S9 s/ Z- }* s2 \" wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 B* h0 o6 T1 |/ z1 Iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& y" b0 O* t& D" f* p' F5 N. nset i (i + 1)6 L: G2 s# a/ \/ \8 K, a* ^! p
]
1 k) t/ h7 C# d% M0 g9 \- J$ A3 `let k 0
4 Q4 D$ _* b6 I2 b0 ^% b1 {/ I- P, ~+ tlet new1 03 o" ]* P% t( o' ~6 G
while [k < people]- ~3 q9 w M3 V3 o6 l% X. C
[
2 @4 \- x( d" {5 ~) |+ Cset 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)
6 b( D; {/ l8 z' u s: j. qset k (k + 1)5 H. g8 T% K8 h1 T5 G# _
]* {: L+ Y0 A r) d) ?- _, P* W/ U9 y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & O- R; t6 W0 @4 _% t! @* A
set global-reputation-list (replace-item j global-reputation-list new)
4 e$ F' l1 s0 Rset j (j + 1)) k- L2 a& @2 w0 _
]
8 H/ P4 F' V. }8 ]8 Mend
/ Q2 F& h S5 m- s8 n4 Z& {. u& A& J6 t7 z }& M. w
3 F6 b6 o1 @/ }
. N+ v0 x* j* Rto get-color
6 a9 ^8 `7 D2 y" f, b- d* h
9 I, G2 {+ s8 M2 H2 h9 ~set color blue+ x }5 N3 t7 Q: k1 `% E* e8 s7 g
end
( i, e' P% V" w( E& G3 i1 I, s$ }! z: g: o' {
to poll-class
$ I7 N. O S9 _7 mend4 v5 E1 T# x& Z. M* M% M8 V; J
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to setup-plot12 u- }: n J: W6 \
: a. H' N7 X+ _0 ]
set-current-plot "Trends-of-Local-reputation"0 f% g% j0 ~! t5 s5 P6 c
8 ?) B8 M8 C3 P6 i& C5 ^( w8 rset-plot-x-range 0 xmax; Q0 B! Q7 r+ C' x
$ V3 O% i/ t1 x
set-plot-y-range 0.0 ymax
% G8 A& Y% f/ [$ R: t$ tend
/ S% P7 D" P0 Z) W9 V, i$ \# D# ?0 J: Y4 c8 }7 ~9 c; j& H" q; x9 u
to setup-plot2" `" a+ z* F1 B2 d
% C( d" C* X g; E8 L! _3 w" Yset-current-plot "Trends-of-global-reputation"/ y( ]' Y# d& t' n
4 k) @" B9 a+ Z. s- z
set-plot-x-range 0 xmax8 O+ q# ~: P" I3 }
2 x" Y0 D% t5 X8 Z* g Q* `$ ^set-plot-y-range 0.0 ymax1 m$ G& {4 \; |$ Z4 A h' g( D
end
8 M9 f' H& x. i
; O2 G1 c/ ]! _- g) y0 V3 ?to setup-plot3+ l# ]# V M- y) B+ I
: s+ Z* b/ n4 G, R: eset-current-plot "Trends-of-credibility"
% }/ @$ k5 M5 T8 i5 a
4 k* P O3 ?7 M! Q6 K8 r0 xset-plot-x-range 0 xmax
, y/ e) g2 e+ x$ v1 c9 A4 l
' h/ n! U( E% p! q& Zset-plot-y-range 0.0 ymax- S! \% }$ G$ x% p7 S0 C C" r
end
: X2 Q" Q; O0 Y$ y9 H) f
( f. ^4 f# v( \9 \# J( ~4 j, G1 Vto do-plots( U9 d. \) P) B. S+ w
set-current-plot "Trends-of-Local-reputation"
1 P& x$ ]0 \( x: f. Z, Y5 o* {set-current-plot-pen "Honest service"
; R3 U8 o2 [+ u, z. ~! Iend; \. t- D( Z" }/ C; y* L0 q
1 B2 X" \: u( ]$ \1 M& A8 r c D[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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