|
楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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* \- {* m4 g9 k4 a6 Y+ x" m
globals[( b# E# T$ w4 M" E+ O
xmax$ o- [2 V9 J- W1 m1 b( _ i
ymax
1 F5 f M; F! s6 o- }global-reputation-list
8 z8 J: j& x7 {$ s2 t3 I7 i1 W& h; C! n4 a+ u/ A/ t* P0 e9 P
;;每一个turtle的全局声誉都存在此LIST中% q9 K& I @. @. f: S5 R3 v3 A
credibility-list
5 v' i( Y5 L& R( A;;每一个turtle的评价可信度9 ?! {' m: o( Y9 I. b, b/ a
honest-service
8 n( B1 m& U& iunhonest-service
6 V! e; j# t6 v, J1 ?4 S* woscillation/ V' W1 ^/ f% V$ H5 I# o9 c W4 R' N
rand-dynamic
; c( B! f, c- l: |2 y* \]
5 P a7 O$ V. g2 c6 |9 Z1 h0 s* v L8 r5 W$ Y4 `" |1 O
turtles-own[4 \& {; |$ F6 K' Z
trade-record-all
4 F9 X0 y* [! @8 r0 x, p2 T) S;;a list of lists,由trade-record-one组成
3 B& X" |" V, Otrade-record-one8 z9 v1 ^1 F, K4 i! i6 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
/ ^( Y9 H! T8 P9 V4 M% O: h0 ~, U* y# N+ I. B
;;[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]]
! P* R: Y! ^" ^; Q; l, i3 \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]
" E; r) w0 p& T/ D- z ?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list1 U* c9 X- m( ^" V% g& v
neighbor-total
7 h% \/ J' [: k2 d% |3 J# N;;记录该turtle的邻居节点的数目- ?4 \1 R2 h+ N7 A3 L+ D3 y
trade-time* T1 G: m) w+ B5 K' B7 `6 r1 Y
;;当前发生交易的turtle的交易时间: i& H! ~9 z# B6 e: K% O9 k. b
appraise-give
0 Y! d# h4 L% M4 w;;当前发生交易时给出的评价
, Z# E% `' @0 x2 j0 y3 Iappraise-receive1 \2 B, K% |4 i: V
;;当前发生交易时收到的评价
3 e# s: N0 E5 i( @6 P! C& i" U; b4 ^5 qappraise-time
& C- D4 d6 \% P h. y4 L5 I: R* h e;;当前发生交易时的评价时间/ ^( R. B3 V( M; I! e. M9 S
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! c5 E) {+ W" W, p) I$ ?" t+ ^trade-times-total o3 Y2 ?6 N4 I# q: }! w+ s
;;与当前turtle的交易总次数
! u3 [6 o' K& R K4 ?" Dtrade-money-total7 G; T$ I5 I2 o2 r; x# n
;;与当前turtle的交易总金额
+ H0 c" w6 ^% t1 u% f$ B2 ]local-reputation7 F, ?0 W" u G4 A
global-reputation) b& ^. x+ a; A, {- [4 i
credibility5 b/ f: w( m8 X: u; b O2 `
;;评价可信度,每次交易后都需要更新
' k; s0 c8 l" r8 L/ F4 ?credibility-all. U' m: K: A& Z& S! W
;;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
& U( _ {* G n9 u" S( R
* u6 j) d* ]# V6 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
7 A3 g! K {! ~# i8 q9 B! tcredibility-one
9 X1 r! n5 R: M;;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7 c, Q) Z/ z/ u/ r9 T! x
global-proportion
! d2 M8 ?% i) H4 M! E- Y, Zcustomer) i# R$ l6 {* q! H) o
customer-no! ^( G, g8 k* ^6 ~
trust-ok! h) z/ E4 d4 [& q
trade-record-one-len;;trade-record-one的长度$ r2 p9 @, V9 P6 d7 L; C0 O) g
]
$ a: x2 d* Q: \+ `, m: E/ P
: o }, Q- }* W1 E;;setup procedure. I( L& P- {: ~
6 `+ B6 \- ?0 |0 J( v0 Q
to setup# N1 P' P0 {6 _% _) A% ~
- k1 }$ G# y. K h7 C4 s1 s5 h/ d
ca+ k& k: O# ^/ o. h: \, D
0 [0 P4 k; o2 N' g) w4 j; linitialize-settings: U: P/ k$ N6 }% n1 h
1 ?2 j+ V8 D# b+ N; c+ j& B% }
crt people [setup-turtles]) I: m$ S% \/ {1 R! R$ G- h7 V* Y
8 H- A+ ~4 f3 I# jreset-timer1 f4 {7 C8 L9 F5 P, y
2 x2 ~, o0 g6 P+ Z: P$ ~) }# ~poll-class
8 ]* p) m% T5 b# _: _( u4 l
% h' F* O) a7 Tsetup-plots
" @" I4 O) V$ b8 b. Z1 |8 Z" n5 b! y% E; j& v, \: _" _
do-plots) E: `: o$ r8 O
end
; \4 c6 u% x: E, s( x: k5 ^" a% K$ Y% }# {% m
to initialize-settings
O" F" w+ b7 t6 V
: K9 H8 ]( A" H( |: Kset global-reputation-list []
' b% D* x8 \$ U2 l
5 a+ q, y4 z; b: J1 b4 V& J# o1 Wset credibility-list n-values people [0.5]( X I" ~" ]9 T3 T3 i5 m$ o
- I# J0 r! s! M7 }9 g7 C
set honest-service 0
* N0 }# z C1 K' X: N4 S9 x
# h k/ j) w) G( i. r* cset unhonest-service 0! G6 V: n2 S6 ]$ D
; f1 ]- Y) Q1 o" P+ s" [9 g
set oscillation 0; F; `* c: L# e# v9 V& v
^* H* f4 [. P. E! rset rand-dynamic 0
6 S1 |8 G [5 s, `end
+ m8 `. V' B$ l9 B( x- o3 n
7 f! ~! w# V% ]5 Z. fto setup-turtles @+ u1 ` ?5 A: _& p% Q3 ~' s
set shape "person"
2 i; l: _6 N: c! X s( I0 Q1 j' L: Tsetxy random-xcor random-ycor( ?8 Y ]7 w1 V7 R3 R$ P- M
set trade-record-one []
. o- h" A; x: K" n0 }: p: X# c# O6 D0 \
set trade-record-all n-values people [(list (? + 1) 0 0)]
5 \' K$ Q3 D" N+ a
$ [' V- g3 u) ?set trade-record-current []" J% e5 U, x$ ]! Z8 V0 {
set credibility-receive []
3 I$ I' }" S1 n. b& m6 eset local-reputation 0.5
& z0 C5 A8 y/ p& o- Q/ Mset neighbor-total 0
- J4 X- E7 v# Y8 ~( Uset trade-times-total 00 [: b6 F( g( e
set trade-money-total 0
6 b( B$ p$ h7 O, y' n- U9 Z* Gset customer nobody
$ g6 r# x' t& O' _set credibility-all n-values people [creat-credibility]* B- A7 K V7 R& J
set credibility n-values people [-1]( e( h) X$ P( A0 O8 D' F0 X: g
get-color
( G; W3 @- f$ C( k6 E+ M; @/ A$ k5 z2 t" G
end) K1 {, A7 x6 u, k5 K% D% j
, H1 t4 P) X. l8 ]to-report creat-credibility
# Q$ {9 i4 h3 a8 d; H# hreport n-values people [0.5]
0 N. U$ P3 c1 @ F1 o, |6 Dend! q5 W) Q( g4 B, L
# W6 K* P2 Z" @9 Q6 N& E s! h1 w, f
to setup-plots! g. F. u: v7 g. c, L7 u% {. r
5 t) g& S1 T! p. X3 h9 {" iset xmax 30( ~3 `' c/ p$ P$ ^5 r; L" Z
* y8 v) [! k9 R/ j! n' P3 @5 dset ymax 1.0( f! q) ]/ F/ P; S, w U. {
- V+ q6 [! J2 F# |clear-all-plots
% _0 v7 J" }$ d1 }) ~9 g# M6 M7 W) ^; d" \9 L* R* c2 o
setup-plot1/ [! d* E0 y2 |; m" V- V
6 P6 E- d% p4 |1 T! `* n% H7 f2 y
setup-plot2
# ^/ M$ I7 l% G* q
& y7 n {" }* d3 @setup-plot3
+ W! |! H$ h; z1 Send3 n. a* _6 v9 I+ l3 L
0 a& o$ b1 D+ K. Q;;run time procedures
1 U6 Y( E/ ]1 E" V, x. `. h5 B% L; }$ A* u2 F& a4 y
to go
' p; ~) C4 l* d6 f) Z4 \
# u+ E1 p. T4 |ask turtles [do-business]
h4 n, j }- S7 A$ I% xend9 p8 w5 n$ X. T8 d$ U2 L
V; n% m% _# Z% l
to do-business
9 l" y4 V$ f' V+ |
" F P2 m4 o" D8 c' k, P$ v; c+ `
rt random 360
. z( m8 N F7 E( U2 O7 K' G- P6 @( U
fd 1
7 s6 ~, i# G( M) d, j' [9 h9 S: C0 N* G4 [6 q" k
ifelse(other turtles-here != nobody)[
/ R: q3 b8 d$ Y0 @: k
2 X% c0 F0 L) F* |# xset customer one-of other turtles-here
9 r3 \9 U8 M) X" {, W' M4 B
& ?+ m4 d4 G* z0 y3 };; set [customer] of customer myself; F0 h* v" [# i9 h6 |' C6 }/ W
8 `; R, w4 P6 a K9 zset [trade-record-one] of self item (([who] of customer) - 1)9 }7 Q% U$ o1 X0 q# W5 i
[trade-record-all]of self
" M; R" s: @6 {$ S4 t8 U;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' ^9 n! m) r* y8 l( q7 \6 w
9 L s0 j) G( Q( Zset [trade-record-one] of customer item (([who] of self) - 1)/ O9 V n1 V0 _2 C- f/ G G
[trade-record-all]of customer
) \2 {: d# W8 I5 C! M' C2 X. k
: x1 }8 ~4 f6 a" {set [trade-record-one-len] of self length [trade-record-one] of self. M1 h0 ^# n8 v: O; x6 O- s
. B }; d* [8 s. C# p, |
set trade-record-current( list (timer) (random money-upper-limit))
/ m0 m. ?1 X5 ?) N* B$ Z6 @2 w; b' E: S R9 o9 R \' P
ask self [do-trust]) l1 R$ q3 N) M
;;先求i对j的信任度
# n3 d4 L1 ?2 c' E6 y+ K5 x+ m3 h1 \4 Y6 D/ [+ b8 F% y
if ([trust-ok] of self)0 `- t% ~- c8 _( G6 U
;;根据i对j的信任度来决定是否与j进行交易[$ v: U8 m2 p/ ^
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: d6 m. w! X, w$ ~
4 {' f- X- g7 V( l8 D[0 a0 b1 F9 {3 S( u
* ?( K* H* H) b: S8 M6 d r
do-trade( z7 K) w. N. }; j. j, [& N
& ]- J' D9 \" @- |+ I" o: a
update-credibility-ijl6 r2 Z, C, z: T4 T9 u
' B. @; I/ o& y" z) t9 oupdate-credibility-list
+ a# r g! f- H% Y9 Z0 y' a7 p- e6 @; ^" N
: l# _7 z& b0 v" C9 N n
update-global-reputation-list: ?! ~% ]0 _4 S4 Z3 m" C# V
1 t* R, f" d' C& P( V
poll-class$ G: o, X S( N. n4 n+ T( e3 s
6 x* i4 T# {% T" v& P- m Fget-color" X2 z5 p5 ?; ^- U4 S) x
& s# t! z; L% b4 i4 l7 C( n]]- c, C, t% c8 D) t+ @) @5 P
5 K( ?7 d' @0 o) h( z( l% p;;如果所得的信任度满足条件,则进行交易
8 I5 O# e4 Q3 [& i4 E8 v. V
- z* f: @4 V1 T1 \2 A# W& e! b[
3 M8 K" A% t/ s4 a; ]8 m# f& a L$ A( i" z! q* _, |' Y) |5 A3 K
rt random 360
. | [- E6 Y o$ G$ ^
9 v9 x4 g7 ^# e( Bfd 14 d3 t- ~7 W5 G/ ?: l
% r) ], w9 E; x6 I+ F, R5 Q
]
9 h( b+ D# U. o8 g
' G. g+ u7 r! Y. ~' h O1 gend' t: q' |2 _5 O7 M+ ~, I- |
5 a2 @! a7 c2 D4 o
to do-trust
) |3 {* j5 j% d i# xset trust-ok False; \! |% r# U* v. w; w
% Y" d: ^0 U" _" I! R" U* X$ `: Y
7 ~4 |/ \5 d9 W% ?$ e) b2 Clet max-trade-times 0
) X0 V$ ?" A8 n s- x& \4 Cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" H, {/ F, `, P( E3 P- a. G
let max-trade-money 0
. E) p, R3 w; x) _foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ o, |3 ~' H+ h7 T% w2 K: h
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 Y2 p7 g# h% g! j7 P6 H/ f
0 ~( L. L: X( O# h( W* t( `: P: r% s$ t9 A
get-global-proportion3 S7 R4 k6 `+ n0 o
let trust-value
( A$ Y; b3 m: ~( Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)4 y& O! t( g% h4 ~7 `3 ]4 D
if(trust-value > trade-trust-value)7 `' j2 l2 }; n) K
[set trust-ok true]
" b9 E& o8 A. x0 z. e, e) Jend
7 c' P# I" |. `3 ~/ L8 }. F) x. l4 S }9 |; G7 E5 l1 o* O0 D
to get-global-proportion
( _9 x- e$ ~: l9 q5 S( \+ yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! E# c D+ }8 [[set global-proportion 0]
# C5 N( O$ A: {4 s. Z[let i 0+ H4 k8 P4 X: H5 z# n* o. b4 ?
let sum-money 0# h9 F& F2 D4 e% l- v" S
while[ i < people]3 Y1 L# i/ {, L( q( ?1 U$ T5 U
[" T+ [' n" o# S) o u# m/ ~: x$ T# i
if( length (item i' L( ^2 G# ^8 U2 v$ P0 M
[trade-record-all] of customer) > 3 )
% e+ m$ }" A- ^3 M! ^1 P[ E- {7 M: l( R9 E J
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& V3 @# K: a/ x; G3 I
]
9 G+ R% |$ e5 h], j+ u5 s% S1 f8 |
let j 0
9 V: R. m9 k' T( E0 \% Ulet note 0# t# z- l. j( ^# G, b& c9 l3 S7 z
while[ j < people]
, _- { \! n2 L[" z" O; j, l- z3 V, t& P5 |
if( length (item i
) y' _' J: d6 R3 d. ?6 j[trade-record-all] of customer) > 3 )
: F" w9 e1 @5 ?7 I2 ~[
/ d- f: o& f4 x i5 Fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ t& O+ N3 }) t' E7 X- A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% j. P1 B' i8 |2 D7 S
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# V4 o1 D% Q, I' L]
+ g0 t1 `4 P) q8 I! E]
- h! n- C7 W2 J5 w" i: qset global-proportion note
) H. J# z2 c, A s! {]
, s9 D& ~7 ]7 `9 qend# a x) y2 B( F- @
: |7 m* \ D1 V# h9 E+ ^- n
to do-trade
& ?% v7 r7 `0 q! L7 R;;这个过程实际上是给双方作出评价的过程
" S }% f s3 {. M! j1 N0 \! Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ m+ S7 w# S& e! sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# b4 z# o0 @% Wset trade-record-current lput(timer) trade-record-current/ x3 i& P3 p, ~
;;评价时间" n, b$ r5 n5 t! x& b0 ?8 `
ask myself [& Z* B& Q3 t# v) [$ L3 ^! q
update-local-reputation
2 n# a S: h* x5 A/ w3 r7 {set trade-record-current lput([local-reputation] of myself) trade-record-current! E) E7 ?0 C) D% @# w
]
6 d: B/ n( @- uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 K6 h2 A8 Q( y- ^# i ?9 P7 a: z! u
;;将此次交易的记录加入到trade-record-one中
' M- e" J- U) X( x2 b# Qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& m( c; v7 y# c; ? [$ T' z- x; @
let note (item 2 trade-record-current ): q' z0 d0 @- ^& w p% v
set trade-record-current& c7 E J; s" L$ A7 N! C. n0 h$ M- P
(replace-item 2 trade-record-current (item 3 trade-record-current))
% V+ a# ?* `9 w9 fset trade-record-current
4 H8 r6 ^# D! ]: H" N& H(replace-item 3 trade-record-current note)
! b3 C3 c9 E$ V; Q! @* `4 Z" Q$ Y# |+ y4 }+ F5 C! q
6 j% L$ _& v. ^; a: b1 R
ask customer [
6 F! Z0 w! R5 @ R. G8 b) _! Eupdate-local-reputation
$ Y1 i# A4 C& ]& C6 lset trade-record-current V- s, L1 V8 G6 a, B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: G1 y* r9 _* l" g/ i( L]. e6 ?4 L+ K1 ?5 c
( m) K5 G- x2 a2 j @, A
* {0 r* s2 W+ y/ sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 S4 G3 W/ l. [) Y; {5 b/ G6 @) m
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 U& ~3 E4 f9 [$ A1 A2 r- B' m/ `
;;将此次交易的记录加入到customer的trade-record-all中3 R' g5 B5 @" S0 }* N2 y! S
end4 d5 U2 @7 t1 ?8 o" r/ X
& I i" z! q$ ]# t j: ^/ ^& p( [
to update-local-reputation2 B4 F; p; j. g3 U4 r" L2 K
set [trade-record-one-len] of myself length [trade-record-one] of myself
" o* ~- t1 X' @: j4 p2 w! M- P- S3 V6 K8 }7 P+ y7 q2 h$ e: v
* `9 P9 w# G6 [9 T- S;;if [trade-record-one-len] of myself > 3
0 d9 ?" P. ]2 ^3 j) Y7 Nupdate-neighbor-total0 b8 z# ~& i2 k2 I$ Q a( C% \
;;更新邻居节点的数目,在此进行9 b1 P4 |/ D) h3 @& p) S1 F) k3 j
let i 3# X7 \# ^0 V5 G. _
let sum-time 03 X1 h4 l; J# }$ c5 d
while[i < [trade-record-one-len] of myself]6 Y! I3 S0 i; X7 q, H b
[8 L- n7 D$ S/ M- @
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 p% R& B: q, l4 \
set i
! s% c6 e- \1 A& K( i + 1)
* }" E( _ ?6 F- D0 U5 P]
/ k6 t- E; ]# `+ f4 B+ J6 ~/ clet j 3
7 V) [0 ?( c2 ?4 }: T m# dlet sum-money 03 ~4 V6 P% L: s2 r; ?
while[j < [trade-record-one-len] of myself]
0 U% T8 N' U9 ^' J, \$ z) @/ F[4 {8 {/ i9 r9 e; D6 O( K
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)1 P b: Y& B2 r5 @9 l. ]% f
set j; }& S. W& q# K2 l3 a+ ~
( j + 1)
, x( A* C' |1 O; s# L]4 W( A) m( P, C+ C; r
let k 3
|3 T- G! k. a3 n7 _8 a) nlet power 0$ ^% @4 W9 H: O0 x( e
let local 0# Y+ q4 i- {$ R# v
while [k <[trade-record-one-len] of myself]- H6 i8 u4 O3 P
[
) j# h: y7 x& b3 B/ |6 l0 Vset 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)
8 Z( G# U& Z0 s' `8 E i( Pset k (k + 1). s. D- k% J, f0 g0 I$ D$ C; R0 k: b
]
' C$ N3 D+ ]2 }! [set [local-reputation] of myself (local)+ A* r2 \% m- P0 m6 O
end5 V3 |/ N3 b4 U* w
5 x. b7 n, F* N- G" k
to update-neighbor-total
% \0 A _! _9 [
1 s) Q( x& T2 e9 a7 F+ Gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, s b2 m* t( W; L1 N8 ^
2 X- L ~ u. T# `/ Q
8 r5 A& K0 m* R3 C: I9 h9 @; w) xend+ h2 _2 W' M6 A! }
9 w8 G4 @; \+ ]; Yto update-credibility-ijl
?- t3 U+ t M+ O2 x+ W9 {4 I) A8 R, S" w3 ]. n+ W6 r- c1 n# c
;;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。2 \ p1 i( p& Z
let l 0
* {3 q& q! i$ X) S; }3 @; owhile[ l < people ]/ I# r8 y+ p: v7 b) R
;;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( R* N1 M9 D, ]: _9 q
[7 J! ~- c. N& Y' X/ h3 k8 ~+ |
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): F! X" Q6 ]* T/ m; ?. p
if (trade-record-one-j-l-len > 3)
$ [) W- G9 g4 {. x3 _) \8 I9 d) O5 R5 u[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* o7 N- s8 V0 Z' g5 D
let i 3
8 }8 v/ l. a& {3 Plet sum-time 0
, w7 c8 F* i0 w6 |) d9 Awhile[i < trade-record-one-len]: t5 C* @6 ~& h: B! K' k6 V" K: p& h- Y
[
% Q, x3 D" y9 N! S) S# ~* pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 c* d( {, Q, bset i& b6 d. Y X# [! t' m
( i + 1)
& d# y6 G1 F B* _]0 l, F2 q$ |4 p5 j% T/ E4 M
let credibility-i-j-l 0
6 j: M# D& w# f) {: y% S9 k2 Q2 J;;i评价(j对jl的评价)% s0 j( _6 g$ o2 }
let j 3/ ^- s* [" f& s2 C2 T
let k 4! C3 o' G% K" I$ u3 }4 L
while[j < trade-record-one-len]
$ g/ ~5 f% P; m2 E: X# x[& U; T9 Y! d- O$ o" p: v. h% [4 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
* d* O8 l; m# B+ Z8 u1 ?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)
: `' Q: {, P$ y, C* a9 j+ h6 U/ X2 ]set j. _$ O5 @) B0 ]( B+ N
( j + 1)5 X! c+ B. S5 q. z" e, v) P: e
]1 M' J! Y" M2 E, 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 ))
4 ?; ~( G/ q, R, a7 a, g/ ^$ ]
& X1 R. ?5 \6 Llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ V8 B5 {! D! \0 Z;;及时更新i对l的评价质量的评价
- L& p' o# `) [set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 p* Q, U1 Z/ v7 ^) h8 m7 i4 b
set l (l + 1)
B; b' x) h7 Q* P% Q4 m]( ]" R0 L9 \/ B" ]+ d. s
end
" s% T4 e* X! u1 ]% A
6 s3 _2 k# e# eto update-credibility-list, L4 H7 T, v. W5 ?/ b
let i 0! ]9 [- P: C) `% i0 [
while[i < people], ^7 A1 l& W" _8 J3 t/ D7 _
[ t- {2 K! y* [# M4 j* }2 C/ {. i; K
let j 0. T3 r3 ]/ b- _1 `5 U3 g# Z$ ^4 b
let note 0
" L$ X" g' X# {, A* u& Alet k 0
* i; b$ `( j2 U7 c- D# F;;计作出过评价的邻居节点的数目* g1 c& m0 P1 u/ c: a2 h1 k- c- Q
while[j < people]
) E/ o; H7 E% m! o6 I[
5 b( z, l- ]; Rif (item j( [credibility] of turtle (i + 1)) != -1)
0 d H+ H3 `5 v: d' A3 {;;判断是否给本turtle的评价质量做出过评价的节点
8 z) }" s+ o( H[set note (note + item j ([credibility]of turtle (i + 1))): R1 t, b t/ C' D9 k5 l
;;*(exp (-(people - 2)))/(people - 2))]+ `6 u1 i7 h1 s6 C8 r9 K
set k (k + 1) r4 X2 P8 L! c1 |# q* ^. g1 S
]/ w# r% y+ W& \7 x/ _% B
set j (j + 1)
+ q7 K7 C% m" C$ g3 `; \9 Y: C]# K1 p9 V' w$ E2 b+ H/ u
set note (note *(exp (- (1 / k)))/ k)0 F& S* T. e, K$ ?1 T, t- X" L
set credibility-list (replace-item i credibility-list note)) ?$ b5 ?. P4 ^
set i (i + 1)
( |. w- E, S/ x, l2 r]
- F b, M% B6 f3 F; }end4 F8 d4 \, @- N
, g2 _9 E8 ~, m' ato update-global-reputation-list
- ~8 {# J g1 {9 h8 ?* ~0 ulet j 0
# ?6 o F, X5 _+ X6 Dwhile[j < people]
8 O! n0 C, V1 k% Y/ p/ x8 S3 C7 H[
1 @! l+ o$ L/ x# U; ]; |let new 00 F5 U0 ^0 l- ` s1 c, V4 X
;;暂存新的一个全局声誉5 h$ K0 a3 i! ~4 l
let i 0
# T4 }2 g+ v- Ylet sum-money 0
# K# g/ F. L! P. }/ \let credibility-money 0
% a; K) {* T# Q# M% `0 U' `8 |$ Qwhile [i < people]4 \0 L% H$ o- R6 A/ v0 L
[: C+ s) b7 e V' |/ _& F0 h9 e
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! ]) Q6 x+ _& _) v8 j" ]4 e
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* j9 ]1 y( ^. U! Eset i (i + 1)5 j" Y0 J, z/ \% C U
]5 M* k) l N! `( u2 u8 F
let k 07 a% ^: i: M9 `' J! F2 P/ s
let new1 0, |+ A4 m! `7 K' k _
while [k < people]
+ {. k5 e& a- \* a; J, Z[1 R" y; i( k: C. G+ 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)1 F G4 E, S! R# Q
set k (k + 1)
+ X7 }1 G" [* p; D* M]) J0 |% U S/ y" R3 P, J0 L
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 y" `* O8 R! _+ }- ~) n y
set global-reputation-list (replace-item j global-reputation-list new)6 e9 f( A+ t; P$ Q7 U
set j (j + 1)! E2 t! ]! j3 m$ w! \1 d- ^
]
# v% {+ t: }( J" {end' I/ _" I8 I7 L5 j
- t5 x+ O4 o |* N3 ]! L
' Y9 ]7 P- e' B, [) G' T" h7 K0 u! N: s6 z' n) N
to get-color
9 d1 r! Y' a) ?/ p" K' ~. V
( t0 g' n1 h- ?0 Z, lset color blue' N v- U, z* E, L0 b
end
# J! `: N" X4 n) s0 w. W# W: e# c9 Z" e* w2 p9 O. ?; J
to poll-class# v4 J o! M0 ] D5 J0 a' P; N
end; ^9 v7 k8 W$ ?, F2 H; Q, s
' t3 @. ~: A; d( L! C* |to setup-plot15 V& c/ t7 `# {! w3 G& K* U
+ z; W" s' J. D- m4 [6 k
set-current-plot "Trends-of-Local-reputation"
- N5 b' h3 _6 g& J" y9 \/ k% c4 q% j6 b1 A- h
set-plot-x-range 0 xmax1 `/ \9 u2 c! x) I# C2 c, R# r
2 r% T! K; K5 H" c) ~+ nset-plot-y-range 0.0 ymax
7 A: x( v6 e2 Cend' \0 |; \! e! ^' w1 t2 i
5 i; e/ B: ?7 C" r$ G
to setup-plot2
1 F$ @0 h8 F9 v" d- a6 `
( M0 @9 F' l4 [$ l% g4 Zset-current-plot "Trends-of-global-reputation"# C9 y) w' w( y& ^( N
! a" w6 m+ V" C( Tset-plot-x-range 0 xmax* {2 n2 `0 ?4 X4 g
' c b' F# N# k5 W, M
set-plot-y-range 0.0 ymax
2 o7 S( t3 |. g: S. i3 rend
/ ]5 V! @; V& W4 J! V) ^( [; M: s$ m7 P0 H6 L! w, @- O
to setup-plot31 x1 |) l0 M) Q2 f
; Y# ?. h% p/ w# v3 wset-current-plot "Trends-of-credibility"; n* O2 ]; W# O1 o! X; v
( M Q9 z- j4 z0 L; uset-plot-x-range 0 xmax
' |. E4 C. }: N2 |/ c2 I' j8 Q1 L
* x8 [: q6 e' n! K/ O6 Kset-plot-y-range 0.0 ymax
3 G7 K& _8 E* wend
% p8 G I/ y7 r! l3 T5 }# z% m3 w
to do-plots
; K9 m/ [0 R3 e/ O- eset-current-plot "Trends-of-Local-reputation"2 M1 v, v- K: q1 N# W( J: N
set-current-plot-pen "Honest service"
! b6 C8 d: x) J5 u* I( vend6 W/ M! W1 | t1 q4 H+ @$ y
% K; K5 P9 C. ] D8 V( n) f
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|