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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8 W% H( M# T5 d' `, _
globals[+ P. _& V2 @+ {( ?6 ? E
xmax; ^. T$ T9 o5 h9 H- y c0 t
ymax
" O& \) a y" D0 Hglobal-reputation-list' G5 ~9 L H i# y
4 }$ C r$ ~! b7 B9 r! W3 B2 X% s# o;;每一个turtle的全局声誉都存在此LIST中
0 k+ ?8 H( Y" H! F" kcredibility-list
& Z* ^/ E: ?! u" ?- {8 J;;每一个turtle的评价可信度
8 d6 ?/ @+ ~# }/ b0 yhonest-service) b- u% ?* z1 {/ I. s4 W! g% X
unhonest-service
% \' m+ W! C, p: V, H, Toscillation
* c: P5 r3 y/ n+ C4 T/ Zrand-dynamic) r4 }& K! Y1 h3 I! x
]
/ i3 E' M. }' ~9 e; g2 P+ B V; j
j5 H W2 f+ K' @0 dturtles-own[) T; A. q+ r M+ @, k2 n
trade-record-all, a: ^! P4 n6 c& ]* t; Y+ U% W
;;a list of lists,由trade-record-one组成
' |% ~* o. ^7 m& Ptrade-record-one( d6 l6 I( h9 b% u% s
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 K8 Q* M( Y3 m( |! X% Q4 x" n5 F$ E P" G& J8 r
;;[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]]
3 B' |+ d3 o" ?, ~9 vtrade-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]
% d7 y& l3 y4 v- Q t6 S8 x# ]* Pcredibility-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
, C9 j0 [& T- i- Z( n, I( Zneighbor-total
: j$ F% c( M" `;;记录该turtle的邻居节点的数目: h5 z; q. f' E
trade-time
" X8 A( A" k/ P, T;;当前发生交易的turtle的交易时间
* d5 P: r. B& ^# O0 y5 S& [appraise-give) q' r" { W4 G8 g8 B
;;当前发生交易时给出的评价, j$ C( I$ @: l; [3 M
appraise-receive, S- l J; ?9 b: S! r
;;当前发生交易时收到的评价
, W5 F+ a" r2 M7 k5 Happraise-time2 k; d" {2 k, D
;;当前发生交易时的评价时间# m) I2 |+ Q! F2 d+ V8 _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉" D: _5 L" p) K# K
trade-times-total9 u( G- e" ^0 j. a& |
;;与当前turtle的交易总次数# u% P1 C1 q. D4 O
trade-money-total* u6 x0 M( p0 u" {% A8 V b; d* y
;;与当前turtle的交易总金额. I1 D, D( \3 j
local-reputation
8 Z+ h2 }+ H7 _& U+ qglobal-reputation
0 T; F: j5 |( ]% Kcredibility; C; I/ U. z1 n( D& C0 r" \( ^. S
;;评价可信度,每次交易后都需要更新
B" I0 R8 s- H2 b3 ?credibility-all& f: Y7 U7 ^/ M5 B3 G3 I
;;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
" G/ |1 r; O9 A$ u" b1 w' b
0 f% F' q1 ~1 [$ 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( \ ~' D, D B3 T ^4 }! s G
credibility-one
6 Z- M# V& g1 }; J' a4 k;;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. k3 s: ~% r& _' r$ { U
global-proportion: ?( W0 n# y* S/ e6 Q1 b. N
customer
! t7 Z* }7 y! r3 |& |customer-no
2 U; F" c/ |& c" h) D, ktrust-ok
: U. r. e4 S2 p3 vtrade-record-one-len;;trade-record-one的长度7 G* v4 ^) D9 M t2 \
]
4 u4 ~0 T# t) M% q: V v
z( r# X- ^$ M% [. a;;setup procedure
. r7 Y( `$ P0 q; r) H: p7 }0 ~3 `* Z* ]) `7 O
to setup
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ca
+ ?% B4 O- a( b# K1 `4 \- }" M4 Y0 ?& T
- I7 F! m$ M. d8 X4 ~8 C4 Dinitialize-settings7 y" v& `( D6 ~+ a" v1 E5 s' p% j
% B$ G' s2 ^8 l: D( A% c: E" j
crt people [setup-turtles]: r: u$ ~$ g5 i; c4 S/ D
. U. d5 E) {; |9 o. l9 u$ {
reset-timer
* d3 N7 L; K* [. N+ F3 _# T! o
; U* F3 w* G2 b( d" r0 @. z Upoll-class
6 x# g/ v5 Z2 a0 A$ p7 s' N4 p/ s" K7 m* a: _! _0 w! M4 L
setup-plots
! s; c" Z5 m" {% S. A! Y5 ~* ~* c4 S+ M* T
do-plots" u! u! b" D9 | L' G
end
, W+ @9 u7 p+ }6 d, u: F' q
+ ~# L& f A# C6 D, _) \+ Wto initialize-settings
- {: C! V7 X4 F) D5 u& `# ?1 s6 `' L8 n- J1 l% H4 x1 S" S# X
set global-reputation-list []' m5 F: \% b$ |1 q, o j3 _2 M
1 _* H/ @# B1 _ U# {6 E- z* i& w" S! h
set credibility-list n-values people [0.5]
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set honest-service 0
. p5 }. v6 E- r' L" U/ o8 @+ Z1 r2 a" w2 |2 a
set unhonest-service 0( |) F1 P5 v4 b. N# X
! F7 \1 a# O' [
set oscillation 0
; Z3 t) n8 k ?. T2 V% ^
! L# E" R* F% d) }6 Qset rand-dynamic 0, ~% z Z. P4 z& N- n
end
! ^1 Y& m* e& G0 [* Q7 A8 G2 N. |4 w, ?; {( a/ q Y& Z; [* o
to setup-turtles $ x$ l1 u) m% H
set shape "person"# _: o* X4 }2 p! @$ X
setxy random-xcor random-ycor
" Z$ o" f4 u) X+ E' e8 Uset trade-record-one []
: K% ]( q( L3 N: J9 h" j+ m" a& _* e: T9 K9 Z8 G( s5 |
set trade-record-all n-values people [(list (? + 1) 0 0)]
4 [. Y% s6 B1 f
4 ]8 C' N/ ~$ v' }' _3 L5 pset trade-record-current []$ g$ ?9 S. A7 s* |! }1 R- w
set credibility-receive [], Z* o4 ]/ y/ c0 J
set local-reputation 0.5+ H+ K6 Y3 |6 ?9 B
set neighbor-total 0
2 J+ W% [# d8 g6 x' o# F+ w% Xset trade-times-total 0
8 M! l3 g' r- _( Yset trade-money-total 0
' ]: J# b8 M5 d2 ~/ fset customer nobody
) d2 D" C9 E" l3 H* n6 g) rset credibility-all n-values people [creat-credibility]
% V1 O+ L! c( Q2 m; T+ ~set credibility n-values people [-1]$ ], b% ~ G+ Z9 y% h
get-color
2 K* a$ G& g- J
! q( b5 \: Y0 ~end
' ^/ |8 S6 T: Z: n) @8 k, A% `0 m) l4 j( I3 K4 Z6 t( G3 R, Y: N7 b; R4 {
to-report creat-credibility" a) B5 E1 D1 W2 P7 C
report n-values people [0.5]; X& _: Y* l" E- W
end" y+ Y% N* Z+ f# r+ w4 H8 y' I6 y
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to setup-plots
( n! M: X4 I0 x+ I+ u2 E+ Y# o3 B+ y9 T+ c) M: a
set xmax 304 A5 m& Z" Y% {$ J' s
l2 {3 R$ a5 {" ^% m
set ymax 1.0
: O) s: G' k6 ~5 I: e p7 }' h% _: N- j
clear-all-plots
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setup-plot1, ~7 ?3 Z& P( a: T& Q/ ?% o
; K: n/ ^" Q+ q) H/ k8 Z+ J2 _setup-plot2
2 M* x. y+ h/ C0 C, a
! o0 k0 k: W) C/ @- Qsetup-plot3
e0 k5 Y6 ?( J! h) ?" Gend
- Y9 J# @5 v1 z, g9 I
6 [/ z# ]" N: D$ ^;;run time procedures
`5 F2 f+ I! o
+ V2 v: t- @+ L9 ato go
/ \$ }6 ^1 A" ]/ Z9 c: e: s7 Z1 |6 ~) ?' b
ask turtles [do-business]6 A# _' s4 O: a8 E1 l! N7 z
end
* E* c8 m: ^; M4 |5 W/ j5 ^
& g& W4 s+ Y. T S& ?to do-business
! _# U# ~2 a. R7 T* [
' s5 _$ S8 ]1 G6 O6 c& D$ a1 y* }/ l1 J+ b3 Q0 Q
rt random 3609 v+ w5 t9 @+ X" n$ F" p7 d* j9 o4 c
& b2 S, E) y& O& J" M: M9 ?& g
fd 1
/ ]7 H" S0 h' n4 s3 a6 ^
1 \' w. Z. w( I' Cifelse(other turtles-here != nobody)[# g8 E+ ?/ _1 Q) U! s
* y( C# z$ Y+ vset customer one-of other turtles-here/ a9 z; y6 B& S+ ^ W2 r
- a" O( S# F. h$ ]/ o6 t( E;; set [customer] of customer myself9 i1 _( w5 t" N. J, q: f
' t0 r5 W; H' w; d$ ~
set [trade-record-one] of self item (([who] of customer) - 1)1 f$ P& S, m% a" [( x Q
[trade-record-all]of self
( \' y/ _0 N7 ]2 S5 J;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 @+ t; D; I4 `- P7 _
3 Q; N- J' y4 E* U! ~set [trade-record-one] of customer item (([who] of self) - 1)
% ]& N7 G6 u: b ]/ a9 l! D1 Q7 p[trade-record-all]of customer [7 q3 j8 A% w
) M/ P1 g9 U9 u& Y: C6 [
set [trade-record-one-len] of self length [trade-record-one] of self
* D& M+ f8 O0 j' h ^- m$ q: B* R5 Z# z8 i8 P" S
set trade-record-current( list (timer) (random money-upper-limit))
8 Z7 d" P0 h8 V. o( E/ k% R; H+ y. R$ S% Q' {
ask self [do-trust]
8 f) f$ L: ^( I;;先求i对j的信任度
8 v$ y* n3 @( }1 a; _1 W$ k: A0 H2 s" T* Y
if ([trust-ok] of self)
- x% u Y r1 s. c, O- _2 s;;根据i对j的信任度来决定是否与j进行交易[
2 Q" Y4 q4 F! W- }; g0 ]. H& Task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% J3 X* E3 O) X1 {# X( m" G4 g7 X6 ~/ D9 e
[
2 Z j4 T$ ~0 p7 I6 l( }0 e
7 _$ q7 S/ I$ i. W0 Jdo-trade; r4 q' R' }% F: W. [
4 b% F2 `: F4 d' cupdate-credibility-ijl
- x, V; ^$ T& E' q3 z/ C5 q- ]& y3 y
( {$ W5 W9 A @update-credibility-list
' w& X1 V7 p' s& K% r) y
+ R+ F s4 m1 X& J* M' C" V% }/ G
5 r5 T- z* J h j5 Xupdate-global-reputation-list
" T3 H q+ C& }4 {# `9 M% \7 h6 I. [( U9 e! Z: E, g1 l
poll-class
0 V- E. G' U' j0 I6 O9 J0 O% M2 L2 u( ~+ U; V
get-color
4 H7 d" u3 P" y* B( M% a# O% T1 b* O! J
]]
1 x) p9 ?" R a5 `& s, s8 s- I/ p! H0 a6 S& b4 y# r
;;如果所得的信任度满足条件,则进行交易
1 E- V/ u5 j6 k# q* _0 j8 @5 b
. u% F7 e5 x+ y. i, V% M' R[
, a; g/ F% S# N( j8 ^: G! q2 y% y9 ^3 |: E0 b& E
rt random 360. Q& @" k9 w8 l' H5 W) Q
2 S) d# l4 J- x. @1 r$ \
fd 1/ T- E# o: P3 y: z' r
1 K. V) y4 w+ d+ V
]
, s8 b1 ? @% z, x( w& A
" }/ |" r# R& l/ h a6 V- b4 u$ rend
2 \& a2 y7 I6 P4 ?" o e$ f. @3 T2 d# H: c. Y
to do-trust
/ v/ b# c( J) f% T$ l3 ^4 k; Jset trust-ok False8 N7 c3 A# h; D
% B6 r* } Y# S6 j* r5 _
; x5 J; O" v/ _ P1 q9 H$ ^4 ^4 Ylet max-trade-times 0
% G |# T8 C1 n8 K/ Dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 ^ c* W' G0 R8 n l" j
let max-trade-money 0' K' K% o8 {9 w2 O3 {8 [
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 `9 ^" H0 _' P5 I& R- j1 Q; @let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( l4 l: k6 N+ _/ x8 ]
; c& N# L* D+ |+ F9 I q4 F
( T; |6 x- L) Z$ k/ u0 E3 b" tget-global-proportion
7 V- n3 j! }4 U2 W2 E0 o9 @let trust-value% y& t4 K, }4 o& _3 H2 S0 Z+ M
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)
2 h( g1 R: x9 `3 _$ O; Xif(trust-value > trade-trust-value)
4 }4 {7 |) d' x* L/ [4 K, ?4 L[set trust-ok true]
1 z9 [' ~$ v0 z1 ^$ fend
8 V/ B! [) s' F& \' N
: G7 g9 u- Y; e% z) o: T& bto get-global-proportion
" E6 A1 {1 }! s4 P7 c1 y5 Yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- y2 x( Q3 J6 z6 N
[set global-proportion 0]6 c0 ^$ E- |8 U& O; `, T
[let i 00 l6 z+ [# p- e n. Q
let sum-money 0: M% T& u1 c3 H$ l
while[ i < people]: |) }- G, n" z- O% V' a
[
1 L1 I% u1 H; ]; ]" [% Y/ [- Yif( length (item i( p2 h( \) O; u6 Q+ b
[trade-record-all] of customer) > 3 )9 y3 n7 E: w( v- z. g0 `+ M6 c1 l0 k
[/ f( K/ E# k' k Z
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)) h/ x/ ^7 g( ~. } S
]
9 S n4 v6 f/ A- }+ o]' {# t; H$ |" N6 ~) k5 U! J
let j 0
! e3 R4 t) z5 I: Flet note 0
- |8 |$ a/ `" s1 d5 Mwhile[ j < people]! ^/ p6 {+ `2 Z, Z3 z' Y
[
) v7 W8 N9 O3 u T8 m Iif( length (item i7 n: _- s8 o; [9 x9 ~2 A4 f% y4 ^4 f% v
[trade-record-all] of customer) > 3 )& T& [ V6 g& ~3 R7 C) W1 c
[
# a2 X# l# k/ B4 H9 H) bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 W" q3 }# N$ x4 H M[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 A$ Y6 Y( \# M' g5 V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) r" ~, t+ U8 s; X. N; w1 g K
]
' m" ?( V6 u8 L; `, P! r4 F6 g. a]8 R- p0 u* b6 s5 A6 ?0 w3 h
set global-proportion note
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9 m6 V4 k& x4 M9 Y* v" v2 H; Iend
* @( Q3 F& c+ x4 w+ N- W* g! Z, Q/ U1 M; F
to do-trade N% J* [- n9 i7 ~2 b& a0 z
;;这个过程实际上是给双方作出评价的过程
, e- p7 F6 q, p! B! B; ?& l- eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 N; e# u0 X3 [* U9 D1 T. {& U! fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
' z3 {5 x* t- a2 J6 f2 D. m4 aset trade-record-current lput(timer) trade-record-current
7 |" _& B0 N2 S7 N- t" D;;评价时间7 O1 t# G' `; z9 e1 ^
ask myself [
0 C5 S A' s% e+ C0 g* u' ?update-local-reputation
- J0 w; V* f) _7 e5 Nset trade-record-current lput([local-reputation] of myself) trade-record-current
; s, l* m. j/ t7 U]& i: V) ?( @# _/ L" [* S
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* e, H1 F( P: Z3 s/ @;;将此次交易的记录加入到trade-record-one中
( B! G _, [- _8 N2 t% U% Gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# O% f7 W( h: Y1 Q4 @9 G7 P1 [let note (item 2 trade-record-current )
6 N* P& a" h u/ {7 ~2 Gset trade-record-current
) v) X0 a0 E# M% P }(replace-item 2 trade-record-current (item 3 trade-record-current))
) |9 W) ` R) |0 g1 ~set trade-record-current4 G# `: s5 ]* k) P9 C R
(replace-item 3 trade-record-current note)4 ^% C: F6 v5 m) L
$ {6 A! a9 ]' H: c Y3 W. L5 t5 }4 s4 c! k% B T0 F
ask customer [
6 e8 O$ J* h, Zupdate-local-reputation! d R; F) n) m! G
set trade-record-current
3 _ c$ O9 Q' X6 d/ c# F# F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ X1 p6 | u0 m' U$ U
]
" x9 i4 p1 g0 ?, m! H' l
( q% }( [! q1 a- `# ~) Z% k
5 o/ M" _! l4 l) F gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' k. o4 ?5 [, [* V$ R
4 l) ?- c* g7 L: f' ~6 l( p) X/ Wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 w* M+ B$ o# ~;;将此次交易的记录加入到customer的trade-record-all中" [* ^( B2 B7 N D+ W! c
end
7 O8 F9 F- A! _8 W: m* m+ C% u( ?" K: |: P! d5 e
to update-local-reputation: Z+ [: ^9 ~2 R$ v8 g
set [trade-record-one-len] of myself length [trade-record-one] of myself. @! ^* i/ m7 r+ G: k9 \! d
3 y+ h& U# ^, N! [" W) S1 W" [) B2 w* }* A+ V8 ?" E
;;if [trade-record-one-len] of myself > 3 % S% C& |: k0 K5 ? X" @* e
update-neighbor-total! H* e6 g9 @+ ], x/ u- u. ^" P
;;更新邻居节点的数目,在此进行
( b6 _" m8 v$ y0 R$ l0 ~0 olet i 3
P% p E6 k$ {let sum-time 0
. m- \ C. \+ v, R7 o! d+ Awhile[i < [trade-record-one-len] of myself]
( O0 S( `. {6 l& B6 t# `[
) Y. C- c8 W* y: d+ _" b1 hset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) Z" ^9 _7 X: U; P1 B7 v. `7 w" C
set i7 m0 \9 v {. Z, o
( i + 1)
* X5 Z8 r+ @5 C; t% x! d], ^4 D# |( ]/ O5 C" p; }7 ~
let j 3+ V' i9 n2 h0 x$ a# j ?) B& q' y
let sum-money 0% S% d4 O) [3 _4 ~* T! P. ]( Y
while[j < [trade-record-one-len] of myself]) B( X q/ m% m) v9 `0 U
[
4 [6 r4 U6 v/ s0 y4 ]! P0 ~6 Nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
! E! {" ]6 i7 a; J! o7 @3 {set j" C. A! c, I. N9 E" Z7 s
( j + 1)
0 `1 I# E8 g4 K% y' \6 x]
$ d# t+ E. |* q* N9 }7 U' \( t* D2 mlet k 35 y& p/ B& D; \6 _( {7 P9 l
let power 0& ^+ \( H: j7 `# q. {6 T
let local 0
% L. s: K7 b* y3 k7 j D! N4 Iwhile [k <[trade-record-one-len] of myself]
& M h2 G4 L4 P$ A3 x" ~[
# a, j2 X. h" _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) 7 R6 e+ Y: t N5 |4 {1 \; b# L
set k (k + 1)* R; a* `& E8 w$ @- Z8 H% a
]
! g; T3 Z7 D. h9 ?' _set [local-reputation] of myself (local)
* V/ [5 e* v" I# `* ]end7 o5 M& ]+ J* L( k I9 w' }
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to update-neighbor-total
; H9 i- k: k4 ?( h, `
, s/ ~+ d z2 h) P9 Eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( R3 i- H w4 g) H1 M) Y; I
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end
( ~" B& Z5 M/ y! E& r2 f' ?& M" b- ^0 M1 v6 V( o
to update-credibility-ijl
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" k# K' F4 O/ {$ S;;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。" @) b* {# D6 M7 U
let l 0
* k6 u7 x" [& p Cwhile[ l < people ]3 p& @6 n0 i9 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2 b2 d6 N% V' @6 T: X9 [! C
[5 y1 Y) D6 A; M
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 \8 C$ _ n- U: B4 S
if (trade-record-one-j-l-len > 3), U* r f# S( S% o4 i( h4 C
[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 @' Q6 ~3 C# v( I) t
let i 3' I8 q( G4 V. o, G! k
let sum-time 09 {/ g9 Y3 D6 {1 X1 J
while[i < trade-record-one-len]) i" `! k- v( P! |% o! D
[
* v v6 X+ Y ]0 z- F6 G1 lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! g! w# O' o9 O: G2 O1 j3 mset i$ ^1 Q, A6 M' v9 O( q
( i + 1)
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let credibility-i-j-l 0
/ S8 U5 r0 a8 v6 |! E;;i评价(j对jl的评价)- l. L: A! F. J5 I0 Y/ z
let j 3
9 y* ^- I7 y3 d4 R$ g3 ~let k 4& p" i, |9 E1 ^/ y- T
while[j < trade-record-one-len]) p- s* k5 V" `0 y6 S
[
6 X9 {! C- P7 ]6 [4 Y0 S0 l, lwhile [((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
" `; m2 I6 J5 X0 X B6 u6 Pset 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)( i2 O3 D: @ }9 B% Q$ u
set j
' m& o0 t0 m/ R( j + 1)
- y5 j! ~' y) J9 }2 u]+ k c9 e0 X( i& ~. v% C1 }2 t
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 ))( ~$ J, L8 z( ]6 T t6 \( w
1 [5 B6 d# E t3 C) v0 m
- L$ O+ G' Q3 {8 |let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 O0 Z- H1 \$ i6 Q! b5 Q* q# r# O w
;;及时更新i对l的评价质量的评价1 R& n* Y: [# Y/ H/ v3 {1 P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- w% N" K( ]' n4 ^5 Xset l (l + 1)" B; u5 L+ D8 w# c
]3 X) @; c# y* Q" K" z
end
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to update-credibility-list/ G+ U2 N) z+ g" U+ f0 O6 L
let i 09 ?( s% {: `7 _: C
while[i < people]6 u& s$ o+ G0 N0 o- ^
[
8 D4 B ?) f6 n! R4 klet j 0
1 e+ C. P& y, e2 plet note 0" U: h5 ~9 U/ Y n6 K9 i/ M
let k 0
' u4 e; E9 b4 s/ x: S;;计作出过评价的邻居节点的数目* z5 ~+ r4 I5 ~2 _( S
while[j < people]
0 z7 l3 L& S$ q, z[1 [8 h# l- M: c8 I$ ?- `9 ^+ ~
if (item j( [credibility] of turtle (i + 1)) != -1)
' T; ~4 P8 m; u" m, Y8 i ~;;判断是否给本turtle的评价质量做出过评价的节点
' o2 @7 n& ]& F6 @[set note (note + item j ([credibility]of turtle (i + 1)))
$ o |6 j3 w9 }4 L K5 E/ ? J0 E;;*(exp (-(people - 2)))/(people - 2))]6 c! ~+ S: q5 A# j: [
set k (k + 1)! Y4 s8 t: v; A
]
3 {- s# }3 Y' l) G4 F2 i9 _0 d; t4 cset j (j + 1)( l) S9 w! Y! t( ]7 F5 T9 `" ?
]
& ?! k+ P' Z5 G H" W: B) b bset note (note *(exp (- (1 / k)))/ k)
% |: d9 ?# @/ P1 yset credibility-list (replace-item i credibility-list note)
& W3 K1 C9 _: P% G- B( dset i (i + 1)
/ h" a9 J) Y, l2 T]
0 U+ C* O* X1 p0 @end) G. n" d8 c' u7 `1 C/ T
4 V: Q ^/ M* m2 fto update-global-reputation-list
- B5 ^! e$ t+ e( _8 i$ y! qlet j 0
3 J6 c! M* |0 o2 q) _" {$ P1 ewhile[j < people]
1 s3 ^, o1 e( Y ~% V[
( V+ o# P) \* ]1 S1 E$ _let new 0
- R/ F& U3 }5 y- t5 P( g;;暂存新的一个全局声誉
5 G0 x5 {# \! i+ d* |5 C9 n4 a2 ~let i 0
# A4 u+ b; ^( u7 Y6 Tlet sum-money 0
2 u, K* V) B$ D4 Llet credibility-money 0& \5 E) Q( S& C C, O+ d' g8 D
while [i < people]
% e7 n) O$ ^& f# y9 e, l% I& d[
; s8 Q- p0 y3 E) P# o7 Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- h1 @: x3 ^( G* \8 b! Z3 Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" ~1 n+ \- C6 m; n) U cset i (i + 1). L. j' M, Q7 H* g. |
]
6 |2 K; Z0 x* u" ^. Q7 S" \let k 0
1 y' e. ^% T6 N3 I# q+ f& Alet new1 0
" |. w3 Q; I. o) G7 N4 ^8 e8 ]% Twhile [k < people] L: I. d% Y6 ?) k8 X
[9 @" a5 f3 O7 n$ q, [! z
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). \/ A/ n; a& `# l
set k (k + 1)
1 T4 X4 Y1 C7 ^" |! Y0 a$ C]0 x b9 [/ ?- M3 o V5 u
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ D, |/ Y# |0 z( ^, o8 z5 H2 M
set global-reputation-list (replace-item j global-reputation-list new)" y* r: r: O7 N1 i" w4 P" z5 D
set j (j + 1)
6 ]" H8 J5 c3 v. H6 |8 k5 M]
7 {+ O( s) h% I) Q* l; S# send
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# c; M2 H/ \& F u! m+ w( w
to get-color `3 Y5 E+ z$ V5 d! \1 T
0 r- Q' J! H" }% Z! w) A% r1 C* q& p8 ^
set color blue5 Q% _ e% t) Q |+ N' x
end" D1 `8 i6 n, I
3 ]+ b& I: M: G
to poll-class$ J; Q8 V9 L* _$ l
end
8 W, _5 Q" S$ W9 @2 X: Y/ K1 Z* W- ]3 M' ~2 ]
to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
q% X/ K O1 r, W" ]9 h
! M; h% Z, x) w* {set-plot-x-range 0 xmax) o: m! z- H) |' i! C
! Y# n# ]" f8 N6 xset-plot-y-range 0.0 ymax
5 {8 k( d9 z4 o5 g x5 zend. o5 o0 d7 M/ U5 J
8 x* D1 l5 A) [; S# k3 ?8 t
to setup-plot2
+ @2 }& p* f# r# f
7 c) }, a; N2 [8 a {$ Hset-current-plot "Trends-of-global-reputation"
) d+ V, b! ]+ H
$ o2 S, F" _) A, U/ mset-plot-x-range 0 xmax
* ~$ Y' r" F, e( K3 e Z0 y, ^# U) j
set-plot-y-range 0.0 ymax
( h: ^% _) _% s* ^2 w, c9 x* gend) o4 a$ B o- D
* P2 F3 K! p K/ z3 v* @to setup-plot3
3 |- r4 i0 Q7 ~; B/ L# ], W, y9 C. }: W/ d7 _4 p$ k: }" y* s
set-current-plot "Trends-of-credibility"$ L) k3 m- L" L. }5 p. f* t
5 v+ ~( r% }4 M
set-plot-x-range 0 xmax6 k" I: u2 [ c1 a; l# e$ a
$ S2 R9 ~5 g. f/ N
set-plot-y-range 0.0 ymax8 ?' _: c5 {# w
end. a& d- B! ^) m
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to do-plots# h* l2 S; b+ H. W2 `) @& P( D4 P
set-current-plot "Trends-of-Local-reputation"9 @& [0 \" q+ O4 J
set-current-plot-pen "Honest service"5 {, s3 `3 Q3 i* _
end
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6 g9 |% C% P5 a$ l% i9 j; E$ p, V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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