|
|

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
, c- @$ ]! f( aglobals[
' K( O9 H$ t: x9 M$ k4 bxmax/ L2 }% Q, W$ Y3 f
ymax, q% `4 S4 W, v+ T1 _
global-reputation-list! K4 w" c4 D/ t. F, U
5 _0 r# Z9 T' }$ P
;;每一个turtle的全局声誉都存在此LIST中! a, Z# m; H& q5 u3 S
credibility-list* r8 Y9 n4 E5 n
;;每一个turtle的评价可信度
4 J) m. R5 G) }$ N; }9 Nhonest-service
/ n4 a! d" o3 a1 _- Yunhonest-service
* V Z# a* O+ v1 K( Q& U* Doscillation8 ^3 n$ K/ \6 B) F8 |/ ^( p. Z
rand-dynamic
$ m9 ]! Q4 }( y5 x9 B$ ]# l3 {]( F8 \. C* ]4 ]: y) I5 c
T6 q- v0 }! \* ]9 r! x
turtles-own[3 J" S9 m# V8 j6 ?% D9 B
trade-record-all
& f+ J4 J% \: a r+ Z, e& h/ U;;a list of lists,由trade-record-one组成2 i4 @- T& y: S" G x# ~
trade-record-one
+ Z! i: P" \' l5 p: U- F9 F. _;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 C }+ p* U1 S3 H
3 E6 v1 p7 @) o; {3 g;;[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 i) _5 p0 k* k! C& l# Ntrade-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]
2 r) ?& `* r5 o* M2 s( x- qcredibility-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list6 g5 A% Y4 ]' @8 J. m
neighbor-total
& Q+ m7 D# U0 q6 A0 i/ p* H;;记录该turtle的邻居节点的数目1 n8 w6 ]9 o/ \) t+ y
trade-time
* j: c7 T4 U2 p9 Y4 {;;当前发生交易的turtle的交易时间# v. c& o( O! C5 [" s1 R
appraise-give
1 _# J& W$ ^' c;;当前发生交易时给出的评价
4 p$ M1 [& W6 J* [appraise-receive
( s# [% T& k7 V( t/ D/ T;;当前发生交易时收到的评价 {9 L c8 e3 {5 k3 e. k
appraise-time
/ k/ D7 c: d/ F* E- };;当前发生交易时的评价时间5 V1 y& U+ V' K8 G
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; |5 j) C7 n G! ctrade-times-total5 g! |3 d" Z4 a, F3 R, C
;;与当前turtle的交易总次数
$ s0 ^0 `# F3 n# Z( C, qtrade-money-total
" n$ [4 W& U8 z M% C3 A' \4 W;;与当前turtle的交易总金额
! _$ t! k4 l5 _6 O! F; m" blocal-reputation8 |0 x$ c7 M1 G# G; [
global-reputation3 W; m2 u. w( M& h( o8 |* `0 J1 ]
credibility; ]. m# k* ^" ~6 ~. W3 O! v7 |
;;评价可信度,每次交易后都需要更新
% s z2 a: z: y" K3 K1 Acredibility-all
& t: p2 l% B" t. \; A( 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
) [! Q' \1 v4 w+ n
0 } \1 V4 y) S3 y/ U/ _& q% a' e;;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
5 y, z9 n& D) G, ncredibility-one2 b% s6 Y7 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
, C \4 j& d1 s; k1 x& jglobal-proportion# v3 N/ |! p+ g2 ~$ ?! k, e) d
customer* @ z G! }7 t+ S F, D
customer-no
/ X1 ]% \; _2 d* z5 c( A; Itrust-ok
3 B) b8 A+ u+ Jtrade-record-one-len;;trade-record-one的长度$ U( Z8 }2 A; h
]' H9 P. O) p) {. T1 H
5 i1 L- y5 j: P0 F% W2 s$ ]
;;setup procedure- M8 k. j V. N5 `+ m) z% ?
) _, S5 \7 B& i8 j& b$ d; K
to setup6 g4 i& Z& H( ?* c6 u
, e& `: Y. O, X$ [# N8 N" z
ca: X+ y# L, F( f
) i8 M4 s; }+ O# ^3 i, H$ \
initialize-settings
M5 y# E* K6 ~% q+ a& k( z* D1 k7 m. J6 d4 M' \/ W
crt people [setup-turtles]8 b+ Q& M% @" J
# Z \8 V/ D0 ~4 c' v- d
reset-timer- q0 g1 ]2 Y6 g% H
- |6 d4 l- W8 T! {poll-class8 ?# ^+ E8 P6 x' Y) L8 m
( |5 b! X' {, F% H5 R( \. q* wsetup-plots
2 M' h1 C8 K1 k: J5 }: D
: j# [7 m! o! k! u3 a7 M% jdo-plots! ~! l( m$ c' n1 J
end
' k8 ~- ]$ I) v0 |! {% H4 N# ?2 z1 }1 r% C! j
to initialize-settings
5 |' s$ B) `+ X% K7 n+ @
* ^" d h9 T l5 T$ e& |3 kset global-reputation-list []
# ]. M! M5 a, I2 ]+ U" W; b/ _/ G3 I2 D
set credibility-list n-values people [0.5]
. v( l% v+ p O; ?$ Y% i0 R
6 A( g! s; q/ O- f* E! Fset honest-service 0) A4 {% p5 O2 g) } G3 e% I
' N* P/ y$ o+ G- c+ b7 V) l
set unhonest-service 0
) ~# t! E, g- l
6 @( x3 y) \" X# F9 [' Y+ bset oscillation 0
N# g. ~% ~6 s. o/ R! O$ ?' r" Y3 n" L6 o4 U$ |0 D, k7 q
set rand-dynamic 06 y, _. x+ l$ W# t* ?
end
" m$ {) a/ q7 J; j" s4 H2 h
/ w9 F# `9 A4 H0 a7 J6 r- zto setup-turtles : f4 I! E( A& t
set shape "person"
) F+ f" l$ y! y7 Isetxy random-xcor random-ycor
N* z" E( j& V" p. F' V6 {, K+ hset trade-record-one []0 y a6 n/ i: ^0 s" j5 O
% d3 `- I/ }8 l6 I8 dset trade-record-all n-values people [(list (? + 1) 0 0)]
7 n+ k3 S: A" {7 m9 E/ }
/ J ], o. }" p' f% [( s5 v8 s' Bset trade-record-current []
; z7 s: n7 Q, t" D+ ~- ?set credibility-receive []9 t# ~, Y u" N# `7 J
set local-reputation 0.5
, s" [ L8 s n7 Hset neighbor-total 0
, l' K$ \( i1 ^$ D- u" Hset trade-times-total 0
9 b3 m4 z5 s# Y, [set trade-money-total 0" |' p- X4 d I+ d7 ? I; s3 Y5 ^( l0 c: Z
set customer nobody, }" W- C% _+ _* p- V: e- g
set credibility-all n-values people [creat-credibility]* [. u( D0 C% _2 i) @2 G+ I! @. d/ z
set credibility n-values people [-1]6 ]$ |2 G1 H8 P" E% U
get-color
9 x) l7 \+ u( R- p$ l$ @; m7 z3 p
end
' h, M: R- o" A/ k
. ]4 p& y/ R" G* k& E r( l" Pto-report creat-credibility
$ E: c$ @6 B* @: j ?report n-values people [0.5]/ Y! a, h0 z5 G4 e' J
end1 s- J+ J6 ~7 c# m& k& a: j1 c
5 y( C2 `* H5 x& L5 m' c/ Rto setup-plots
6 ]+ o# x: T8 `, M) |. e, [; X, e7 h0 l. ^; I
set xmax 30
+ U2 h3 p) [2 ~: w$ y7 @, w- \. N$ f W9 ^# m) f; I& H+ m- I8 g
set ymax 1.0
9 {) @+ n2 @1 }1 i1 r" v/ @/ V* y7 @4 X# \2 a
clear-all-plots4 r8 i0 x+ U6 J$ i: X
. F* n. g& b" }# L, tsetup-plot1
* R6 Z5 {: I6 G
1 U2 v( ~1 B0 f* usetup-plot23 q8 u3 j; E$ D2 \. H
3 c3 g4 b( m+ H( |- i2 |! h7 E6 \, G
setup-plot3# T2 @# Y; R1 k& l9 `0 _4 J
end# ]2 w8 R2 L4 P: J' R8 M1 t# F) ^! Y
5 a; H# O# |" D
;;run time procedures) O+ A6 g6 c3 E& B% S' f
6 U4 J2 q/ n9 j5 v- j; X
to go* N: o* \, y$ p" f
" z) q$ X) {. {: f; y
ask turtles [do-business]$ b/ l v9 K+ ?2 r% n9 ^7 b
end: \$ }* @" h% |4 o3 w# N
7 D4 e; k$ Q# Z+ M1 @/ }2 bto do-business 7 y$ N+ o4 y. l* e% L
' _/ K/ }3 R' r8 W( ]/ F( ^& U8 ~
/ m5 A8 a+ b* [/ n* xrt random 360- X+ a: I9 \0 I5 v, [; B
: C4 L# Q! `# P8 P
fd 15 K& U8 ?3 c8 }# y* G. G, Y7 N& S* @' f
1 a6 B. _" e* c3 ?' h. T
ifelse(other turtles-here != nobody)[* t% j* H( k1 K( V3 O
5 ^* j v3 G; C/ v ?6 Y* v* Xset customer one-of other turtles-here$ w% \% R" F C B P$ @
`5 d0 b8 r: f" i$ _ Z( c
;; set [customer] of customer myself
! |. d3 [, ^+ {' X' d9 k& S
, a% C" G. J. M6 ]; O; j7 rset [trade-record-one] of self item (([who] of customer) - 1)4 a: L+ M2 G+ E3 l% b( |8 {8 n3 t! v
[trade-record-all]of self
( [, y; Z4 T: ^" {' e;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: L7 d7 O. D( U C/ ?1 H) u- U- U* X+ s0 i. }4 F( R/ F
set [trade-record-one] of customer item (([who] of self) - 1)
3 u# O: r. _$ X& Q/ j4 r0 {+ ^+ a[trade-record-all]of customer8 ~4 b0 t& L; B7 c- t" c: e L
, O+ ^' p5 x- }2 e! n" k
set [trade-record-one-len] of self length [trade-record-one] of self7 u7 T5 K6 \. \$ {- v/ O2 s
# z9 t0 L! H$ U
set trade-record-current( list (timer) (random money-upper-limit))" N# ?7 V. {4 p3 E
* ?3 C; M# S" U4 q& q1 s% N
ask self [do-trust]1 {# L) z v1 x' r
;;先求i对j的信任度
5 T% u7 T4 |8 ?5 F3 y% A: b' z* w9 h) v; C& f* Z1 Q! N! k
if ([trust-ok] of self)
" I$ z- X1 q+ j! w% ^;;根据i对j的信任度来决定是否与j进行交易[
/ w( O$ F7 `6 q% q$ a' T- S gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself# {7 u1 H" y# h5 ?8 t+ |
- {: ?6 ^& v% n4 s" @+ c" a' @
[: X1 ]; B6 D3 T1 u+ `8 w
% K% `% t! w: l% ~% I* y! M6 Mdo-trade
, F* U; m( }7 L% H4 j# Q v3 |, S9 h
: z# _. j; i( k% b7 F1 iupdate-credibility-ijl
9 ^3 |/ W) U( z7 P. ]% f3 S8 O
2 F+ R: I( ^1 r) `2 p8 S: t+ xupdate-credibility-list- B7 d: s; K9 L6 {; u7 O
% b6 S4 i; y5 W6 Y1 R0 v
/ y! ~5 S' k- a: T; E( X( A$ i
update-global-reputation-list
8 A. l9 Z4 Q9 r( S9 U, W w! r, s1 y: }& n$ B1 j
poll-class2 X+ e& I' \& C" A8 z) `
: Y' a5 E3 L$ e7 a& G
get-color
5 l& |; d, x8 r s! G$ v6 Q' S3 [5 q V& k6 f- n1 m- v: w
]]
" Q7 X+ Z7 R, [" O* R& e1 _' N- J8 _4 F* F9 k( \5 ]
;;如果所得的信任度满足条件,则进行交易& }" o' h4 o- W2 v8 r, D
$ q* y/ y! u8 ?8 s[
# L, q E3 D/ v0 n6 X
* ^ e2 I9 H* j' X# N% mrt random 360% {# [7 o) k: i
3 q- B, S7 ~0 f4 W; Xfd 1
8 [1 s( t* [+ c+ ]7 v
, n7 T- l8 Q& Q0 X+ M]
8 V8 q3 T/ K; m8 \& d. [& ~: E
end. t# H7 b+ f/ z# i8 f: J$ Z
8 [, r) w! M- }( Y, O. vto do-trust 2 |8 P+ g4 t g/ D& Y* z
set trust-ok False
2 W1 G$ D# R. N6 d- c! [. f& ~4 w" F% ~% m4 m% k" {5 e$ e
$ m" l6 [4 |5 [0 ?2 m- E+ M) H
let max-trade-times 07 [( ?8 B7 R+ [8 a1 h! W, d
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 P& o3 a3 p/ r2 t8 nlet max-trade-money 0
, Y7 T/ M; `0 h2 Y# o5 mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* ?( [" F* b7 F! a) Z3 w# g' c. O4 @
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 U7 G$ t6 y) j+ X* ]4 N
( v1 o5 x5 c8 q) {9 ]$ F5 x8 D4 e6 c9 w) f& m5 q3 [
get-global-proportion' | n: }$ s+ [( z+ T- i, w! \( p
let trust-value
n9 @2 Z# D) H4 p& T- r% X0 F* plocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
0 M* [6 ^* L9 Nif(trust-value > trade-trust-value)
1 H& \* W: e/ K. J9 k; G4 ~% D[set trust-ok true]8 O. i* e* m" ~7 k: C1 w: D
end% P# K" v- y4 e% _* D" b
& q5 E' ]* K9 V/ G0 R0 fto get-global-proportion
! d" X: a$ ^1 k$ qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- {8 L8 c2 \6 n/ ^$ D7 L& K v[set global-proportion 0]
) j$ C9 D, W) c* r; Q[let i 05 Y- ~* k0 P! K- |: h& G
let sum-money 0; p/ v+ Y# ]9 Y6 Y
while[ i < people]
' ` @( N0 l% J' T/ q V$ R[* q1 v5 V7 {; F$ a# } T( h" W
if( length (item i! H, t% Z( S* O% D9 s
[trade-record-all] of customer) > 3 )
; x8 u" L( D: M0 ]7 Q[
5 E7 i. [6 n# R. iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))( n0 x( f) e' i
]
' i3 A. V( |1 E9 K]0 T! B1 `. r: g( H
let j 0/ p" H7 I1 z& _* _. ^& q6 \9 x
let note 0- w! q6 B( H1 e$ h
while[ j < people]
! s6 m8 b! q& Z/ o[
3 g/ X! B0 w5 h6 X1 ?if( length (item i
M1 K, o' z% v( d6 R# J[trade-record-all] of customer) > 3 )
7 p( I3 s1 x+ e5 M[
& L& i' C" Q9 Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# _9 I+ l9 Q* A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( M p1 E1 d7 T6 N. a8 n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 r3 S- |% B8 Y! R; o1 g
]
8 M0 x+ s. f$ x z. o]- J Y; H/ {5 b6 A# h' ^2 _2 e
set global-proportion note! H: d ^4 f, q) g3 |* w: B
]
+ F8 w4 B/ W+ v( k; }+ q. dend
1 u* N4 `# E" t8 H$ D8 ?9 C q
) D$ K s5 }& b+ B' N- zto do-trade
$ B4 A5 A$ d) r* \7 y;;这个过程实际上是给双方作出评价的过程! F l' D8 S# _* G/ w- x# ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 i, B, l* {0 y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 E2 P1 G9 q' Q3 n7 ^; P! i, Xset trade-record-current lput(timer) trade-record-current
9 V& z P7 a1 l. d6 {4 m;;评价时间; J7 j) k* l% N; V D- m
ask myself [
2 h( w/ K# f, d1 g+ X1 {0 ~: yupdate-local-reputation
2 _- q H- u( u" Cset trade-record-current lput([local-reputation] of myself) trade-record-current
+ R! _2 j0 e; x; _/ K$ s]
; L9 q* j; _6 e' U5 P0 F& u8 b( yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 U' i* [' y, ^. _1 ~
;;将此次交易的记录加入到trade-record-one中8 F% g% U2 ]: @1 _7 ]
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) X/ @! x% M8 e6 x
let note (item 2 trade-record-current )
" Z- e. J; g: R6 L9 Uset trade-record-current5 r- y, B- J$ s i. W: V+ K
(replace-item 2 trade-record-current (item 3 trade-record-current))* j% y, G8 b& D' N( `
set trade-record-current! ]+ s+ x* X4 m' C( i9 x
(replace-item 3 trade-record-current note)3 Z5 z. q, l) E- k9 ^2 j0 R
& q. X, A& n5 b3 q/ R* ]
+ P. b: l" Y# u, t% g! R* Xask customer [
- w1 [( y- X' uupdate-local-reputation
1 r; _- q/ C0 a, Yset trade-record-current0 \, ^. O; R3 e. Z9 u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 Z7 U4 O5 v$ k% u0 ]9 Z* P
]
9 _; F1 }$ A- s( d2 I' U; A6 P2 D, Y1 x+ v# N
H- E {) R- h. q* xset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( G5 C. c" d; o: [8 {
8 T& y I$ M5 U: }set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. @# t* ?" b* y0 P;;将此次交易的记录加入到customer的trade-record-all中
2 Y B, @2 M. ?, E! G8 mend
* G) l) E5 Q0 k7 P y+ l
% {* K. d4 R J8 H- K1 \to update-local-reputation2 k; T5 M" A1 e* r- z9 K
set [trade-record-one-len] of myself length [trade-record-one] of myself: t5 B( f+ B2 J4 h K
6 {9 [& z& H0 I Y6 w. {
& I0 X5 j' `2 @: r5 H z2 v6 W# l
;;if [trade-record-one-len] of myself > 3 9 ~+ z1 { @5 e! O% H9 Z7 w
update-neighbor-total
, `2 W0 a1 }$ J0 ?& B% v8 i0 \;;更新邻居节点的数目,在此进行
- L9 K9 _9 l& q; mlet i 3* K, L6 ]8 Q9 M$ I
let sum-time 0
; t1 d3 W+ j# t$ O% b2 `while[i < [trade-record-one-len] of myself]" C! Q8 x; ]* j/ D% v
[
* r3 m" k% D4 oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, i3 P0 ^& E$ H; x! N' J! hset i+ F2 X: q% \& D. ^" B5 [7 t3 }( |
( i + 1)9 y! C$ l' Y4 K5 J5 O
]( g# o( N) x; W4 O# V
let j 3
/ d2 q% ?7 ^) r% i# ^: \let sum-money 0
6 r! z1 U9 c/ n- e" W- M; Ywhile[j < [trade-record-one-len] of myself]
$ p' F, \' S: ^8 q2 _" l# a[& ~3 Z3 ~. X8 Y
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)
* y0 V3 }: M+ g z$ @8 uset j/ @& k; J g/ c1 p' P
( j + 1). x) {+ V) z4 h/ P9 v# }. m3 a
]! Q3 G- i/ ]) g
let k 3
; N! a: _& ~+ N/ Zlet power 06 e6 m0 B) R: E- i0 s2 [
let local 0
$ U) N4 F7 \. H" v, j: ~while [k <[trade-record-one-len] of myself]
$ O" L, y3 Y! d3 C# v' X) A, n[( S7 s6 B+ G: r a: c5 U) I! C
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)
# y6 v! v& I& Q' zset k (k + 1)
3 d8 L/ B' A* _9 P! |' x]
/ Y& g. T9 s4 m5 {6 b) K8 F1 Yset [local-reputation] of myself (local)
3 G; m1 C4 l7 p. M( Vend9 b( R* k' v3 [8 X+ P9 K
# L' D( ~1 u$ V+ k2 x3 ~6 ~* Dto update-neighbor-total
- m, h! ]+ R n* E6 z+ a4 o1 n- ?; A
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ |) \. Q; r& U% N: e7 [
' g" J$ X, H" J* L6 w4 t6 S9 O9 b* p
end
# H1 C* C' L$ w: ?& y1 U+ O! |, W+ D
to update-credibility-ijl
/ Q; Z" \* Q) \5 s5 S5 z
6 k% t% o! T' R. v6 z! F. w6 @;;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。5 d: ]! {) {' w. X
let l 0
6 k3 R+ n! X9 Zwhile[ l < people ]( @8 T5 i7 E+ w$ j7 C
;;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
$ k7 a/ Y0 m! s: D9 c[
6 X" u+ f K: Z# I- b' Ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 C/ ?9 T. \: ^2 Z
if (trade-record-one-j-l-len > 3)
3 n1 C9 Q" x* l6 N& }2 ^, ]( c& 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
' [# P' s/ m8 c! E& alet i 3 L9 A- H* i& z9 }6 j
let sum-time 0, m! f X) F+ G' s. [8 k6 [
while[i < trade-record-one-len]
; R7 @4 [& \5 [: A[. r( o2 |# Q c1 G! U
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ S8 f/ _" p& M7 W& K+ d* j& _) q
set i' _6 X+ J* C0 c. E p S! X
( i + 1), _5 q- c$ v2 n
]
, i! i" E0 {/ T6 J8 ^let credibility-i-j-l 07 p# V; n8 ^( A% @
;;i评价(j对jl的评价)
: h8 a' W- e p) z8 Nlet j 3
0 H- h) b' j/ }; Nlet k 49 T) `% H7 o" p5 a6 S, G" }
while[j < trade-record-one-len]* J) D" u8 A) x" U0 [
[
) y- R: u0 Y5 g, @5 o1 @ Awhile [((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
5 k2 N6 |/ E9 ?2 T7 kset 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)% W2 E6 E O4 e! o, x4 I% V7 f
set j$ F, `0 ~: ^. X9 h# l6 z8 }9 \1 B
( j + 1)& ~) K% v, ?1 E- k& M
]% s- U& {) k8 R' d- R& @8 W1 Q
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 ))
. s2 J0 {$ r$ L0 {: f2 g' w. C9 T$ C! X2 x4 v
: q9 Q a; b2 B' Tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 t5 \5 z$ N& a0 M' u
;;及时更新i对l的评价质量的评价+ G5 }1 j r: }) D
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" S5 U6 A9 t" q
set l (l + 1)
. e \, [* S' [7 R, s0 Q]) N# D. O4 F& e! Z( j4 ]
end
3 p- [- ]) H, Z. C
) x" C* G8 g! x- N, }' z$ Rto update-credibility-list7 M& I- ?' e7 n' |
let i 0$ Y' v3 S$ U: H4 @3 y
while[i < people]
# M9 S" g, r ]7 Y* T[, A6 C& f4 D B2 P; ?( }9 `
let j 0( K! K- @- Z, @) J. f
let note 0
" e+ K: t+ I/ d1 F% Blet k 0# F' Z4 o, j& g; q2 c) G6 q: {
;;计作出过评价的邻居节点的数目' Q1 n( ^. S) ~
while[j < people]
6 Y5 \0 D: |# N[
( C" Z5 D# d8 f0 |# y! N1 Sif (item j( [credibility] of turtle (i + 1)) != -1)$ ~, T% N' g' |. C: V' H- f$ ]
;;判断是否给本turtle的评价质量做出过评价的节点
1 J' K6 [# i5 v% h1 f[set note (note + item j ([credibility]of turtle (i + 1))): `6 d+ W. h( y
;;*(exp (-(people - 2)))/(people - 2))]: x0 B3 p. o8 b% ~8 j
set k (k + 1)
3 d* s. K3 P0 t% |3 a6 p) A]) J% N2 j7 S/ v3 F7 y
set j (j + 1)" ]! |8 }, d& i: C- q
]( \, B' F% s+ \+ s) j
set note (note *(exp (- (1 / k)))/ k)6 N8 ~6 S# c/ L
set credibility-list (replace-item i credibility-list note)
) g' B2 E9 q+ H, ?" ~9 Kset i (i + 1)
3 Y) a3 x3 ]" u]( P$ w& R" |7 G9 ]
end& R& P" f; W2 D) U7 l& O. ^
# }: ]0 q# P+ f* h
to update-global-reputation-list- ~# z" v1 @) w) e( o: W1 @) ~
let j 0
4 q6 g5 T: X# K$ Nwhile[j < people]
: x' R4 i0 B8 u+ z! |2 J[
5 n. D) }( @8 Glet new 0
. }- H9 l" R- j# V% u;;暂存新的一个全局声誉5 l/ A. a4 I, O4 S1 s
let i 0
( Y+ V9 F+ w7 rlet sum-money 0( _: M* D* A1 K. S5 M* [
let credibility-money 0
+ ^% ^2 V6 v$ m. q1 c ^while [i < people]
7 P1 Q6 {" x* e. f0 k2 Q[
/ e* X% v1 L: [+ K/ ?% X4 aset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: `' x$ H7 V7 b$ e+ f. F% Iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ x9 m& ]( Y9 t0 g9 Z3 V. z8 Z. |set i (i + 1)" G2 r% j* J3 [' k0 r0 u+ r* N) j
]
4 {: ]7 q8 l" Y3 p/ ^let k 0
7 i) V( o) O7 r+ C5 H/ ylet new1 0
) v8 t! M4 B$ S: b/ a, M8 uwhile [k < people]
# J7 @5 [+ D% w$ J8 i( y, C[* m3 E. D" ~$ A" u4 @/ h
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)6 ?3 c7 t" \$ X" o9 P- z: z
set k (k + 1)4 t% n& L1 j% E; _/ s7 g' O
]
" H: r# q/ z# G% b; Fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * m0 [! R. G$ ~- t: c# c) W
set global-reputation-list (replace-item j global-reputation-list new)+ P l' L. X6 b$ h2 V! c3 ]& ?
set j (j + 1)
# X% B: B( r0 G% q]
9 p5 [* s3 g3 Y7 n. p3 J( f+ [end
) Z3 D1 @+ [2 c/ r0 D
) m8 d0 F7 m2 h, h( B- `$ L' {% b ?* l( v6 C) q
: m& M9 r y8 Yto get-color$ W j: d) v. X. M W
0 o' N0 w' G0 D
set color blue! F7 h- |+ ?" C0 k+ P5 F" k
end: m( F$ I$ ?% _: o. u# n
- [2 J7 s) _* [$ j
to poll-class
- a p. M$ w9 V) A" C: gend
: A7 f/ J1 e [3 S! R9 M/ O6 W2 D6 z& ~: L8 b/ }
to setup-plot1
. t' x$ i) z! u1 l( _# }- @, K* P6 Y: R s9 \+ n
set-current-plot "Trends-of-Local-reputation"
1 \& a+ V' `8 f- z; H! w
2 [0 J/ Z3 t! o0 aset-plot-x-range 0 xmax9 V9 d Z. D/ `- @' s
q1 ~2 h6 y9 ?4 e8 Fset-plot-y-range 0.0 ymax
a8 y( A- g. |$ j# u( _end
* ~9 W& M. z1 ?7 F2 e& d
% H' L$ T, p( L7 p8 K) \( tto setup-plot2' F" ?" j Y5 e
/ L+ \# U# m. k4 ] b
set-current-plot "Trends-of-global-reputation"7 h% J+ l5 K/ q
6 j( g- B$ l7 q/ w- f3 N) O$ h8 s
set-plot-x-range 0 xmax
0 l! Y4 k% j$ \9 _2 \# S8 d4 n9 N2 V; B, r0 U
set-plot-y-range 0.0 ymax9 n& d8 C: A& P; Z
end
% j2 j! O3 ]4 O$ h7 H9 _! Y5 l/ x! ~' h1 C) j. B# R
to setup-plot3/ w) i* x$ x- C8 t8 K
# Y: y0 {9 A2 H9 e) fset-current-plot "Trends-of-credibility"
+ \4 d& z, O$ `0 K$ ^. C* \' C- a0 h z
- f) M' ]" ~4 g/ U- n- \1 c5 D$ r N4 kset-plot-x-range 0 xmax( B5 G. n) p/ J. C6 W0 M8 z7 \
) {8 D2 a$ T! E* B4 S5 }set-plot-y-range 0.0 ymax: }) ~/ V- C, [: }4 e
end
% m! L2 A H5 t2 M: n* b: }3 j( {) M9 b6 u
to do-plots, `# y0 [) t: Q, _( ~, o0 g% F D
set-current-plot "Trends-of-Local-reputation"
/ s: ]1 M6 p# Bset-current-plot-pen "Honest service"8 V+ c( B/ \1 g1 G l) \" D5 ]2 j4 d4 }
end
+ b' v# V; C& x# o) g* A2 d |) M0 c
[ 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
|