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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
, O$ z& B4 ]6 m9 H. V5 R+ F* W5 sglobals[: b1 v; n( |. E# p) z. B- ?. K) {
xmax9 Z' W+ u" ~* Z
ymax
6 j$ h# f4 V" R& s; G6 rglobal-reputation-list; [3 f, m' r; h j% d
: L2 n* ?8 r. d5 e. t;;每一个turtle的全局声誉都存在此LIST中 b6 }: y; _+ i; g& F, e# f
credibility-list; l2 v6 ]( d% j- r5 q$ b" g
;;每一个turtle的评价可信度# a- k0 Z8 z; K+ U3 q; o* Q
honest-service
7 N) ?) M& G# B( D: i1 |. @unhonest-service
" H7 H# u6 U4 N, t4 `6 W+ Qoscillation
5 p) O* u% [6 t, frand-dynamic
8 H' m o; y+ J# P! _2 ~9 E; P]% o7 K( M9 E; L% r
+ [' a$ F( Q2 q, W( A2 W
turtles-own[
5 D% j) T( ^4 y( k% Y9 Wtrade-record-all
! v$ n4 H( F+ J, w6 J4 L; e;;a list of lists,由trade-record-one组成
4 v. p" [: u/ P* u. X$ ntrade-record-one
% g6 g, e; R, I0 i2 r;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" _2 j+ n ~* B9 A S! H
; C5 @; C6 s/ ^1 |- E' ?;;[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]]
- y9 i1 Y/ D/ ~6 f, S$ S5 F* Ctrade-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]
% A, E/ L3 k6 W# B& L! ]8 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
6 K4 [: b0 D, \4 v; S) F$ P. g+ Xneighbor-total e* Q2 v: r# {
;;记录该turtle的邻居节点的数目$ L5 P+ d% e5 R/ v/ j0 Y
trade-time& s4 d+ |3 B! n9 R$ _
;;当前发生交易的turtle的交易时间3 ~1 K; O6 o( g6 D$ [- R" U( l
appraise-give0 ?) Y' K# m/ U; h$ z' r
;;当前发生交易时给出的评价) Z3 }$ S9 I+ s2 p! C! F. g
appraise-receive* w/ @2 e5 \" [7 Z9 M
;;当前发生交易时收到的评价3 \4 j0 _0 |2 E2 G. A( \
appraise-time
- K. ~# j5 [: |( }7 _' x% V* X5 k;;当前发生交易时的评价时间
* u* Z9 y9 x! q5 llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉6 [- E. Z6 f5 q7 w
trade-times-total' N+ X8 v9 Z8 U( o! H9 i+ B
;;与当前turtle的交易总次数9 q! P( o9 U3 x+ X* \8 N" e
trade-money-total5 U2 Q) ], i: m
;;与当前turtle的交易总金额) I4 N# X. n) ]2 d0 b6 y' X
local-reputation* }& [/ e& Y/ d7 `0 w% `
global-reputation- z. i% S- e; [
credibility0 A$ n& c- i. ]+ m: ?
;;评价可信度,每次交易后都需要更新0 T }- }" z4 q, S3 {
credibility-all4 N$ z' I/ N( B
;;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/ U3 E) h) r* H8 A5 X8 }
' e# f/ W9 @8 l2 J- R4 `; [/ c# u3 z;;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 V- [, @% T: ~( E# M0 L' S' \7 O. Ncredibility-one/ {, J. `. C' Y0 t
;;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
- F( _9 n( v, }& ]global-proportion
x t6 p/ Q9 ycustomer
% e! P, i8 d+ Xcustomer-no8 k+ f* f) X& E: f
trust-ok
" u) L C; r% f6 i& o, w6 H i6 itrade-record-one-len;;trade-record-one的长度$ s6 B; V* I! N0 t3 j# J
]
$ P7 m/ @; H! K( s: M* o8 T5 A, M" O- r6 B
;;setup procedure4 ], M1 t E+ Q
' h% [! \8 e& t9 ?6 R- Mto setup
9 U$ a" Y7 e5 k8 u
& ^/ L$ Z3 j& f/ |- Q6 _, Cca
; i( W( ]0 |9 v- H: R
& ?7 E: s5 K5 R0 L: winitialize-settings/ q0 [# H( N* _( O8 K
; h, I8 C6 b, d k; T$ u" rcrt people [setup-turtles]0 [3 _0 f; L- O0 f$ q+ M [4 D
3 ~8 H; t7 n" D: L: V
reset-timer: |; B2 P$ G" m+ i- y2 U
6 l6 X/ O* g1 V; z# j, U2 F
poll-class
% D6 x# q7 g8 h5 c" z! h. |0 Q3 E0 `( w2 g$ r
setup-plots! F9 [- p E. F8 I
, G ~2 a% G B, ~
do-plots' o) G- r' n C
end$ I, s/ [/ L3 V3 ^
3 e# p( U! g1 U4 n
to initialize-settings
6 b* T4 o- w: P$ A5 m1 v2 q9 ^. K3 L8 v
set global-reputation-list []$ u/ C2 X2 d5 v& S. q; F0 {' K
/ B% D2 N! H5 U# @7 H4 ~
set credibility-list n-values people [0.5]9 @+ u+ S& p/ ]/ U( G
J) k |' U# W9 l' ?
set honest-service 0
4 F$ i& @5 ~, _' l+ [* z7 x7 o: f0 i! ]3 {
set unhonest-service 0" m# d5 R l1 K( [% o3 w, L
/ |# b4 z% F3 Fset oscillation 0* |9 u) D5 a, A& q: }
+ @5 X6 F T2 N; g, ^4 H
set rand-dynamic 0
! k7 n% y& f) G3 n, r9 Y, aend
* w3 j) }0 l' q% w
@1 F9 T+ c6 Y4 m% l2 Kto setup-turtles - x" {8 \: ]( d3 c9 c
set shape "person"
; E% u* v& r$ hsetxy random-xcor random-ycor
7 w1 c ~0 l+ {4 E* t Oset trade-record-one []$ |1 h& ^# _ r/ \% `
7 Y- c/ _& X1 r: y* U( B$ n; ^
set trade-record-all n-values people [(list (? + 1) 0 0)] & t8 E* y5 S; y* C W" C
1 i( e5 z; x/ zset trade-record-current []
9 v/ @ E: j5 M3 tset credibility-receive []7 Q: P+ {. T4 u- k1 A3 L- L
set local-reputation 0.5
7 i; w f$ s9 w- Y. i$ Z# X3 R7 T& {set neighbor-total 0& e" |/ M. s: @4 x. U
set trade-times-total 0" d' c/ Z* `7 O3 U6 c( V' O( @
set trade-money-total 01 m- l! V: ~; c C+ `
set customer nobody
+ G) v) j% U! F: u# l F. Zset credibility-all n-values people [creat-credibility]
+ ^9 {& x, u" A5 w) Pset credibility n-values people [-1]5 S6 }1 V, E8 [* T
get-color% T" m) B7 W& u+ a. Z' m9 A
0 }2 A4 u+ R( A2 p
end8 h, Y- |; f" \2 `+ q" i* n. C4 |
7 Y, B0 k4 L, K
to-report creat-credibility
7 J+ K! m" @3 `9 z& E$ f- }report n-values people [0.5]
( |" r2 E& U z7 vend; L# i4 M) P+ j* n4 b% q3 I. K" w) x" Z$ w
7 m6 b# |6 s+ ^ B8 O2 H: b) zto setup-plots
9 G" i. {$ ?9 D r/ h& E* e7 `
set xmax 30' ? p# k5 ]0 g5 {/ F1 \
8 {7 R* D4 |: H) a1 ~set ymax 1.0; |% ?1 z! H3 f3 F/ |& R
n% J8 l8 P5 ^0 ?- e4 V2 p( b5 C9 p
clear-all-plots) ]' w8 W' f. l% ^9 N/ Y7 F9 K
: z; B$ p$ k+ Lsetup-plot13 N; j7 H9 v* M( ^- [
2 A) _! H& ^4 H3 w) r
setup-plot25 F3 H- [& w+ s( [6 q
+ c( H' Z. B% _/ P& `' s& lsetup-plot3
" {6 R% p8 Z4 W2 y Wend
5 N0 c( C; w, E5 N5 }* ~- C _) r
4 e ^( W; K# Q- j( l' i;;run time procedures
: m2 ]+ m z; j. o# M' H
! A' |6 r% E% Y, u8 C' Z) Bto go
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ask turtles [do-business]6 R& Y: E- z$ m, U' ?1 ?9 A, w
end2 l5 Z0 Q; `% c' Q) V1 y
8 [' Z$ }) L% L
to do-business 3 v4 ^8 y# ^0 D* ]" {3 p
/ |! \* }1 y: `$ H: y" M; B3 s/ K9 v/ W
rt random 360
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; g# e l, a8 t3 ?! K# o7 efd 1
2 g& f5 m6 T# t; n7 @% _7 |% x! [
ifelse(other turtles-here != nobody)[& `8 B( N! n4 E( Z5 L- G
+ w6 Q6 q1 S" p0 h' B4 k% H
set customer one-of other turtles-here* Y& R6 f% k& p' M& B' Y
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;; set [customer] of customer myself
& T0 @9 z7 r# j; o# e) \# n
6 c. N K* S; |$ |' nset [trade-record-one] of self item (([who] of customer) - 1)% J7 B- G/ G5 u) k) Q
[trade-record-all]of self9 V8 V, ~7 G) E% G; ^" V9 t' |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* f$ [' z) u/ W! }# a& @8 y
7 }8 I7 O: j1 ?& Fset [trade-record-one] of customer item (([who] of self) - 1)
" b p7 d. F; S) Z& V9 E[trade-record-all]of customer
0 n$ x7 P) ^* n2 o) E8 p% `' y
6 b8 `& k5 |- F2 n& G7 gset [trade-record-one-len] of self length [trade-record-one] of self, x$ o- Z, L E: J* O
9 v) b9 A- W5 p% Z6 b2 m/ m mset trade-record-current( list (timer) (random money-upper-limit))
: Y% D( m, {( l/ j# Y7 |! g1 J
& {3 f& L7 K+ b' dask self [do-trust]
4 S2 E# d2 X' x3 _$ [2 E7 h;;先求i对j的信任度
: j6 e/ O; W4 w! b9 S6 ^- C9 t% a: F: T5 w! ?/ Y' B1 z
if ([trust-ok] of self)/ c0 c" F& q* \5 m: }. V' e! u9 P
;;根据i对j的信任度来决定是否与j进行交易[+ X# Y* c. N& m2 c9 R
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 {4 |) G0 f7 Y6 y& e3 ?
; f* a( g8 g+ \; O
[- s: F, |0 z; H4 A2 E
& G$ n. T4 | p% l P1 l
do-trade! w2 m! h& t! ^, P6 [7 ]+ B, Z
" ?' X8 S! o; ]1 w$ Q; j
update-credibility-ijl7 | A7 `7 ~/ G
" k3 N, U. @) ]
update-credibility-list. u# R0 j: a, n; E
, m/ B! C6 d [% v U9 v. O/ H% a+ ~9 m9 Z* e
update-global-reputation-list$ ~ R: W( V3 u
7 Z* y" Z6 \0 |1 E5 k+ x
poll-class5 R5 j' h& O& }# @
5 x$ s6 g) Y* Q- D& H( ]get-color" k8 a$ w4 y% O6 K- r
+ m% p3 f& v; Y8 K% f. [
]]
* W* W, v. N6 j+ {7 O) x! b
% f. ?: @' i9 Z2 l;;如果所得的信任度满足条件,则进行交易
: B/ H) [$ {. I3 o$ ^1 z, k
q. l- p, [) f K; M[% |+ I, k1 C2 v% E
$ y" A% u i( |/ ?( F; Ort random 3608 j7 o' I0 f$ a; J- ^, w
5 A$ r: l) I8 w$ C$ e) y, c1 Y
fd 18 }: b5 x3 W9 v; J; n
5 W! `0 ~- @1 m, v* A9 C]
& U. R4 @2 w% x
/ q1 K X4 Y9 G% G6 f& P6 oend
4 A9 \+ Y3 I9 ]) r: n' U. z6 ~( I, r& ]
to do-trust 1 b; t. w; m( ?' D
set trust-ok False
# @7 e* j1 i; C/ a' P9 H0 _3 ]* a
; \: Y. p: G- O" |
let max-trade-times 09 A$ @, [& S$ o: z" i. T
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 ]6 D0 E- H2 j1 g, E$ f! ]
let max-trade-money 0- \- F; l7 m% ]9 U0 k
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], e/ ]6 W. k* u0 P! g
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ r* c a& I' S. Z7 @6 s+ B$ B" \
: b9 X0 g: ?: C+ a" I* h
& j, z1 M2 o! j Cget-global-proportion0 S2 F1 e( v, O: `4 L- U; k5 {' m
let trust-value
4 t" p3 R; |% T+ ?# mlocal-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 j' m: q: d% n' }1 F) {if(trust-value > trade-trust-value)( R5 [5 w" N. H( s5 ]' y) R
[set trust-ok true]
8 p+ B: R+ P! Uend
* W+ j+ ]: I5 L5 f: n
9 P9 j+ p3 N" [4 d1 w. @to get-global-proportion
W' d" T" F3 c c7 i" Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- [- g- I/ K* z! o2 q$ X
[set global-proportion 0]
0 {6 J; X4 h& v. ^; O o$ Q s[let i 0
$ q5 e8 q% X4 Slet sum-money 0, f5 b/ C- D: y' S9 c
while[ i < people]
* i- `. g+ {3 V& A; t[4 G* u7 j, w. V- ]& d% L
if( length (item i
+ Z# F" M4 A! U4 B8 X. N3 U0 ~[trade-record-all] of customer) > 3 )
& A5 _. A2 v4 ], k[
1 D2 g. e9 t3 |, X: lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))% k/ `) q: C/ `: B, T+ Z( J
]
3 b! t& k0 T3 B# H7 i$ W6 W' I]
$ r( p! [1 M# A% s4 B' Jlet j 0
9 J) `( [* Z- ~: y0 ]let note 0% G; a! A! T: D ?( H& [0 Y
while[ j < people]
: J1 H: |" M& {! N. n: Z[
* j( n) r3 o3 x$ S6 e& o7 O: ?if( length (item i+ E5 g# A* L" F5 ^+ R* n
[trade-record-all] of customer) > 3 )+ S x- M+ t% f v# V5 I7 E
[2 c' r' J$ B5 x! ~4 b0 A: o3 W# a! R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" U$ D/ ^/ X7 {) ` T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( _* C8 U \) F( v1 q& V3 y/ ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 H' G7 [* n/ k+ k( F9 }* j
]# L9 X2 x+ Y0 H0 @
]% a) r- T4 V- C. c7 ]1 ~; V
set global-proportion note+ ?# K( u* C. T! x) t# n
]; M+ V5 p+ Y6 C d9 |
end
* W/ `9 `# K0 D1 W: d- z5 {1 H! q
* q2 [( _ w- C5 b% xto do-trade
% V& q: u# z# D: J# V/ s. E6 r;;这个过程实际上是给双方作出评价的过程2 d1 b2 b# C/ }8 |' p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( a& M8 v' F4 W; i* g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: n# {# |! k: s
set trade-record-current lput(timer) trade-record-current2 G; Q" S8 f! Z6 B
;;评价时间# I Q4 E' S" a! `
ask myself [
" v! L4 C% D3 r' _update-local-reputation
2 J; z0 q7 W2 N( nset trade-record-current lput([local-reputation] of myself) trade-record-current
% e! }* p4 h- L0 @5 d( P]
x& O2 b9 v; \. R( \+ yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 m1 |& ^0 K1 M/ e. {$ A' a; ~;;将此次交易的记录加入到trade-record-one中
8 k1 z T# M' pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 w, \& R$ F. b ?3 ~, ]! U
let note (item 2 trade-record-current )3 d. b1 U) X8 E o, | W
set trade-record-current% [! m% \ d# C, k; a( O
(replace-item 2 trade-record-current (item 3 trade-record-current))
. m% c! q |- [0 Tset trade-record-current
7 j$ T/ j2 C( h2 I! K7 }: o(replace-item 3 trade-record-current note)
/ p a5 p: W& s* t- A% J9 F2 r+ X
8 D% `; ^+ w. A4 |
ask customer [, h' D) d) }! w
update-local-reputation' L- ^: Z0 b+ l3 P: L( X" ~% g4 E
set trade-record-current" j, C1 P5 B: V& v0 ~
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " c1 V( ?! j. G* Y' j0 \ B7 W
]
: q( z* C1 }* u) Y5 E2 j7 A
]" ?! N. B, o& B9 d1 \0 l, c! G; h
. L4 Z3 B; R" X3 U) Vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 A4 c+ P2 F% S G u# A
6 S9 a& P3 {& `2 sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 ~: G$ A( C$ [2 E- v
;;将此次交易的记录加入到customer的trade-record-all中7 E3 {$ k7 w4 r7 {& m
end) u0 b# o9 B' p0 N5 x( ^1 W! _
/ J$ l4 [# [# J- y" ^0 ?2 {to update-local-reputation
& |" ?- c# ]4 r! `* uset [trade-record-one-len] of myself length [trade-record-one] of myself
! W V e% U" I( b) l/ d4 u- d9 J5 ~' z0 a. F$ H( _2 \
5 _6 v! B6 E: l# J4 u' w4 Y7 {8 h;;if [trade-record-one-len] of myself > 3 " S4 \1 M2 R* c4 o
update-neighbor-total: ~# A: I% }/ v8 o0 e
;;更新邻居节点的数目,在此进行
1 I0 n+ I& T: ?7 Llet i 3
& y2 {8 ?. `1 P) Tlet sum-time 0
6 K1 H( T% L! z( f3 H# @while[i < [trade-record-one-len] of myself]+ K# d- Y, j. G- p4 p
[/ r# g8 U/ p; ^/ \ c; V
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 X6 v) j/ o8 x: I* bset i. l, u4 r; K0 a9 Z
( i + 1)
2 ^8 R+ O$ e( q9 A9 m; K& B]$ P$ Y; g9 ~. t
let j 30 v. R0 O) U$ ]3 u- Q& S
let sum-money 0
. n V+ L5 H* jwhile[j < [trade-record-one-len] of myself]
7 M* w, h: A W) N+ I/ J[* u# D6 Y( c+ l$ \; s
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)
5 |# e2 N5 h9 q' P1 O8 oset j/ j1 d: r B" _" L
( j + 1)4 @1 N: l: _/ r& {2 h6 X
]/ K3 @, }* B+ Q
let k 35 c4 l' {- f" F( L8 _$ C( |+ E& b
let power 0' n. U3 Q3 R, k" ]
let local 0
7 c1 o. l( [4 M1 S- jwhile [k <[trade-record-one-len] of myself]7 `; E3 s/ x, @
[
0 _8 V, b% N5 S$ Z0 u* Uset 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)
d9 n4 M( E- h: Bset k (k + 1)
4 Y2 ^$ d9 n+ `0 f/ ?]
9 }6 A+ e3 E; T4 n! p; y5 [set [local-reputation] of myself (local)0 s5 Z1 U- J' s: ?* A1 |
end
& B7 m" o. x4 y; h& E8 z6 F2 V" @# j, S$ \& y1 E
to update-neighbor-total0 B: a4 k/ z* |; x
2 A0 j8 q# Q: |% H9 s
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], o4 O* q5 d( O: W, ^. E+ l+ w8 S
0 V2 d& n% D- a& Z/ l9 D' Y
+ \% r, ]% i5 I, |7 e6 Bend
, n s9 H9 K; V
3 T. J7 k. d2 U% _( H5 lto update-credibility-ijl
+ a/ J6 p# x- G# L
; F2 M t/ v. k5 b) ]1 x;;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。
( L1 ^8 s8 S' n/ X. g, R0 O" P' ilet l 0
- X6 q; i* i+ e( dwhile[ l < people ]
0 n2 @- h2 p) s) n) W;;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) ^% c4 ]2 D# [% `
[
: ^! l( D& l u9 q Q7 nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)" I* ^2 n% h( N& M! l& ] h
if (trade-record-one-j-l-len > 3)
" w) w# H/ O5 L q8 D[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-one0 l5 w- G* M8 R9 y0 r
let i 3
3 h' F7 Z4 Q1 o. clet sum-time 0
' x( T$ E4 @! Awhile[i < trade-record-one-len]
% A! p4 n5 ]1 P( P& j( g[
- a5 H% K6 F% fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% L3 C- v6 g# c, _, t7 N
set i5 Y' C5 M! J7 X" ^( t. a
( i + 1)
, J" Y; \1 G6 Z4 w]
! S7 l# g6 W% E! U3 t2 f0 Xlet credibility-i-j-l 0
H. j. U* r8 n5 X. y' }; Z;;i评价(j对jl的评价)
" k& L& B; ^2 hlet j 3* }2 g- n8 h6 z$ K2 d/ [
let k 40 E8 |+ n. [ \0 a) |$ U" }( t
while[j < trade-record-one-len]
1 ^, m( c, P3 O% F3 M[
8 V7 R) {2 t J4 Pwhile [((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
' w4 S9 U$ S. B$ n. ?7 hset 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)
1 e, U: c1 q- }6 b# ?set j7 D: X9 n+ b3 a+ ?' d
( j + 1)
$ X" ~) u1 x F) m]
8 O) K8 p6 h9 y# L7 o. qset [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 ))
0 x1 D* I- n$ v, e) a( _/ b# o$ y8 p4 I/ ~' x5 H
. v9 s0 x3 T* D; ^1 Xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ _; f' @1 Y. Q- t7 `" {( t;;及时更新i对l的评价质量的评价
$ u% C+ [$ ?& s- b; m! p- O) sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 m7 w+ u5 h. {7 j; O: g
set l (l + 1)
) Q4 s+ _) b0 t0 z- w" l; W: T]) I2 }/ e8 `, ~! P
end/ j( l! M. u1 |7 ?( b
% a) h9 ~% i* N
to update-credibility-list, m+ T* H, S4 l5 Q6 D2 p E2 {
let i 0
# `2 R% Q! F/ M& Rwhile[i < people]
' q4 v) E3 I+ j% g( S2 z[
. a- q' t+ m* Z a2 x' ]. Y! tlet j 00 q$ T5 q6 N4 w
let note 0
- E2 B1 o7 C+ E! m% X$ Hlet k 0, x) n4 `% v+ v$ p
;;计作出过评价的邻居节点的数目. M) p6 ?2 X! K9 }4 Q* `
while[j < people]- l; w% V6 ?9 s/ _ k6 T" U; H# e
[/ x6 _/ y; `0 p* t9 j4 A/ H# ` q
if (item j( [credibility] of turtle (i + 1)) != -1)" ^8 y7 w2 A' q- t( K; ]
;;判断是否给本turtle的评价质量做出过评价的节点
2 g W: n/ \$ s/ T[set note (note + item j ([credibility]of turtle (i + 1)))
/ {9 S0 M6 d- J% ]/ Y;;*(exp (-(people - 2)))/(people - 2))]& P- ? Q2 U, t; Y; c" D7 q9 \; U; ]
set k (k + 1)/ d, s& g u+ p1 e
]
2 x \0 X, G# z/ X' ^! w+ ]set j (j + 1)
/ q- t, B% s1 f]- l3 P) x+ q& h4 \. G2 r
set note (note *(exp (- (1 / k)))/ k)
; Z) ]3 E# o& v- S: Tset credibility-list (replace-item i credibility-list note)
$ c* D# z" s1 xset i (i + 1)+ m0 I( h. v9 r+ k7 B( c
]
6 M3 q# r1 I' G3 l$ C( o; P$ Kend
" j5 E' F; x4 ^3 S+ _2 @
- N- V- k/ H3 a. wto update-global-reputation-list
/ S( K7 X/ S! t+ y. {( wlet j 0
7 n+ _- |" T# }2 E- Gwhile[j < people]
4 Q9 u |* s4 T( `[1 H9 l9 j4 Z2 x3 k
let new 0
# l, n/ @0 g* x. v* C1 [. S2 x7 x;;暂存新的一个全局声誉( b2 g R/ A, |7 b6 ]; D& l1 M& b: C
let i 0
% a' l& e2 t0 b) G+ Q: Mlet sum-money 07 [1 e g' c* P3 y
let credibility-money 0& l5 ~4 l8 k1 P: u: B$ H
while [i < people]
5 n1 G+ i, w8 N$ h _+ x+ i; m$ C[
3 g/ H9 j# m' i! H; ~( g, yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# i# D/ `5 q6 J- _# o3 c" H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 M5 G% e2 ~6 w! N, `
set i (i + 1)) W5 @9 f- |4 a1 ~( c, K
]( w* m" |: M# D& m; ^9 ~
let k 0
( d! H" T1 ]4 F9 c9 e9 Q q: @7 s; ?let new1 05 ]& w( ]) K ]" n/ V
while [k < people]2 ^. L- U Y: y5 ?& ^" r
[
! k# G/ {- W, h; ^7 @+ G. Q" Iset 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)
: S( R! n" j1 A1 H- nset k (k + 1): r7 a) A" O3 R$ n" e' H$ J
]' }7 C* G9 k4 g7 n) H8 b- B
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 X( [: H5 X1 P1 t" n/ ?set global-reputation-list (replace-item j global-reputation-list new)
q1 | \+ k: |8 Rset j (j + 1)8 ?% B$ t/ J8 a1 g, B0 H- W! s
]
8 [+ m" j" v7 |) P. j1 U% ~/ Mend8 @1 I. a! f- L9 i
' ^. f4 E' l C6 t s
/ O5 J ]/ u3 W$ @+ |, v( M! c/ l# l' l$ ?3 {8 }
to get-color
, J. k0 D) [; _; z* s
3 K1 o3 G# ?8 [" M( M% Q. ~/ Tset color blue8 T$ m4 D8 x$ C
end
3 ^' w& I/ R* x2 F0 Y/ m/ y4 R% K! i2 N* s& B5 C N" A/ V
to poll-class$ {! T7 A. u) z! a9 }% ^
end/ @ D \! C% K4 x, A5 l
% J- a6 A. g; [2 X6 @
to setup-plot1
# M2 S2 r( V( B$ O9 f- |6 c" E) k. B
set-current-plot "Trends-of-Local-reputation"1 t5 I6 s# g' v6 e
' X5 f) @- |' u
set-plot-x-range 0 xmax
! e% G: Z8 p2 }. C0 ?; l7 l, J' `0 B6 O: ?/ v
set-plot-y-range 0.0 ymax% ]; y+ N6 R( x, E* r
end
" X% q/ t9 W8 W3 `* ?7 V2 j6 S1 G+ w
7 @( c# a$ {4 g9 q! r8 mto setup-plot2
* |) V2 c+ c3 `) J- P* \1 u
. V; y5 }! g' {set-current-plot "Trends-of-global-reputation"
# y3 s# W5 I: q. n- C4 R- A" Z5 y- u% F1 C2 s9 Y0 ~8 o1 M# y/ `" ~) |
set-plot-x-range 0 xmax
1 k% Z, e% a1 a$ C/ e/ Y+ R& ~9 H( S7 W: u# n. Z u" H; |
set-plot-y-range 0.0 ymax
7 C1 g9 s! O; |+ d& Vend# t G: y- w2 \" ^
$ I! M k: B; n3 z0 @' z( B. Vto setup-plot3
8 e7 a; H' F; C
3 E1 A' B$ H% [set-current-plot "Trends-of-credibility"! M+ n) U" g: `$ b) c% L
+ i7 S/ y1 ` g2 pset-plot-x-range 0 xmax
\" E( N5 `+ o! ]/ J5 G. x
# n) d$ F; e& v) A: z. Zset-plot-y-range 0.0 ymax* R3 s N5 V4 S7 g5 Q! M
end0 d7 t" {' r& n% p* _2 ?- H
, v- l$ F( F9 b9 j1 kto do-plots4 @: U7 f( M, A4 L9 W5 s# I, g
set-current-plot "Trends-of-Local-reputation"
?6 Y: Y8 A( N5 bset-current-plot-pen "Honest service"
9 |6 S+ t$ K& uend( d, L C. v& D# Z2 Z
- K) M7 q, Q# l b* F$ N! z. c" f
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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