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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
, J/ w4 y7 U. H/ u- `globals[+ y1 w8 F/ R1 g# o: s$ X4 T
xmax: G# H/ N% z; v, G1 d0 C# C) F
ymax
# l1 Y/ o0 @' b5 z/ d0 G$ X9 k* Nglobal-reputation-list
) y2 D* L& G- y7 Z
, `# Q) o4 k( [3 U1 _ i- V;;每一个turtle的全局声誉都存在此LIST中9 F" I, J! T& v" H" n2 @
credibility-list
1 f. K0 Y+ M( W- c) L$ K' l `;;每一个turtle的评价可信度
: w: L' B% O0 _0 U. a0 `0 jhonest-service
6 a* U8 C; O) h X1 _5 S4 I/ cunhonest-service
0 Z+ n/ N; K& J: R4 V$ Ooscillation
* _$ {4 ]* L; F3 Q2 R, m' K) drand-dynamic
( ^% [* Q0 X2 k0 {2 p) `0 L]
2 C, F! j$ e1 u9 O) v
: I, u+ o, q. r f l2 p; ?- ^turtles-own[( ^( \0 m0 [# V
trade-record-all
, o2 H$ y6 A+ e) k;;a list of lists,由trade-record-one组成
5 S5 m6 L7 C U" Vtrade-record-one
& L) N$ k% H& V, z1 t;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" V) r1 e0 Q9 k& }1 e* K( Z/ L* q+ \. n1 L
;;[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]]
7 h( ?" L6 R) G- Z# 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]
, s0 V+ P! p1 \+ }, x& ?1 dcredibility-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" e: r) q9 v+ Z# k6 h$ i
neighbor-total
! T- j q' n1 [;;记录该turtle的邻居节点的数目( F* o1 Y9 `0 n3 e; ~
trade-time7 K! d. }$ X4 Q
;;当前发生交易的turtle的交易时间
% J/ O3 _% R2 S$ N/ ~8 ^3 Oappraise-give+ t, ?3 v3 x8 |, i
;;当前发生交易时给出的评价
" `; U5 l3 B2 v$ u5 u' @7 Q9 G7 Xappraise-receive7 q3 u f0 ] C& _
;;当前发生交易时收到的评价
' N; e. m; Q" Happraise-time5 C3 X6 G w& f' f' }% Z- A0 L/ C8 M
;;当前发生交易时的评价时间
1 g) U2 u" V4 A! flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
% Q8 r5 S& [: I/ ?' x" ptrade-times-total
u1 \, S4 F( V2 I' S+ b;;与当前turtle的交易总次数) _& ~/ U& j# i0 S7 Y% B$ d
trade-money-total
3 s' J+ v3 \5 ]+ _;;与当前turtle的交易总金额
+ s2 Y4 g& e- @" \2 j" s. P) xlocal-reputation
- d; M+ j* B! qglobal-reputation
) G: H5 y7 \3 V) m7 w1 Dcredibility
7 e' T: a! Q% G/ Z;;评价可信度,每次交易后都需要更新
9 [' N1 s2 G6 c1 ?credibility-all
7 O+ B1 m8 S+ P+ Q' Y9 K7 l;;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8 u y: k9 F: a: h
* z% Z$ z2 D- a5 U;;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
# T$ w h) t% T: u p' ]! B0 Rcredibility-one
8 |4 }/ r! Q2 G7 n9 c$ a* @;;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( }' ]( X0 U4 [global-proportion) G9 C0 H& @1 I
customer
( ~7 ~: F3 A% a, A' o9 u2 fcustomer-no; o* X& F$ Y+ \% }' }: M, F& ~- Q6 V& F
trust-ok4 t# \# ?% z! ~# O: u4 U! P% I
trade-record-one-len;;trade-record-one的长度. Y: G9 x! P' b+ e! W' H
]
, p) _% i2 P. q) v9 x' @" x: I; p" L0 Y. M+ A2 r) ]3 w
;;setup procedure) V @- [9 T$ Y, A# G, a! G G1 {
6 ]# S0 c2 G# _* E! X7 ^. v' }
to setup
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& L# R1 y N: o. f# b+ |ca
: h: Y. d5 ?3 \8 ^2 h7 T% o. B
3 r! n& l3 ]- _1 a2 Rinitialize-settings+ {$ ^* k# A# j3 S
' J# F( |5 s# s: e" D8 p4 \; m& C, Hcrt people [setup-turtles]
( F6 A) j9 p+ Y7 v- ^$ v2 v+ g
+ D+ s1 \6 ]' I! \reset-timer; `* ~7 X9 V& j5 r3 L
2 v/ T5 y& k. ]6 s' W. p; |% w$ Bpoll-class( o' _3 _/ f: Z9 F; j
3 M; [9 i; o+ U! `0 Psetup-plots
* W: x- ?" ` F" D; M8 q# ?* l3 P4 G% L; s* K
do-plots. k/ X$ q% N( T8 c! [5 q6 v1 \
end$ c- ?8 n# J# q9 P# v3 \% b
+ q0 L6 P) b/ d# Ato initialize-settings, {9 x! S7 p: U6 \
% P: f0 | H+ v5 S( G7 l
set global-reputation-list []5 n( ?2 w( w3 p0 c
1 Z1 u4 J' m! Z* o' Eset credibility-list n-values people [0.5]
- L4 p& ~4 s3 {/ I% u* V5 {( |" Z% m
set honest-service 0
7 F# v. f! I0 o0 k* j: k+ _+ w% r B% v' _3 ~
set unhonest-service 0
! r6 A* A% {9 w ~, E
. |. D: d7 W* a: D/ f0 bset oscillation 02 a" |: S+ O) R0 ~/ V9 \( F6 B
2 G; G& C R1 d0 [set rand-dynamic 00 Q4 e0 h" P, v5 P Q# B+ J. a
end
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to setup-turtles / r5 U( e% Q$ L3 A4 b$ ^$ O4 w0 l
set shape "person"
8 I" ]1 s( }2 x e5 S2 n; jsetxy random-xcor random-ycor
0 I7 [; V: }* |& j% |+ `set trade-record-one []
, u8 f3 e/ v! T& p+ `
* G4 {0 v* }( z8 O" M' x. Dset trade-record-all n-values people [(list (? + 1) 0 0)]
) ?( k/ q: t5 ^" F' A* Q; m
& H3 |, v" o. F% b- Nset trade-record-current []7 p% ^8 c9 F! w. ?) H
set credibility-receive []! k" g4 I" ~' G7 {
set local-reputation 0.5+ a; _ L4 @5 p5 W4 C2 T3 y' o
set neighbor-total 0
1 T, D% L1 S* P Hset trade-times-total 0
7 J: v' _/ J2 S5 Y" z& A4 Aset trade-money-total 0
8 x9 W7 t* [- z0 n) R wset customer nobody
: n: g6 m6 D \) zset credibility-all n-values people [creat-credibility]
3 [+ q2 r/ p& E3 qset credibility n-values people [-1]
; c5 U; I4 X( i) t1 _get-color4 a* o) B8 \/ a- R/ Z( ^3 Q
8 w$ G: Q) s/ @: o% }7 r- bend
* v/ I, c5 F1 w' z5 n
( p+ C+ e! Y4 a4 r" k9 |to-report creat-credibility
* a* n- ^/ a3 U# Qreport n-values people [0.5]
9 T, O5 e* b- C& r7 dend+ h* A2 u1 v: b- c
6 {. B3 C" G( W% E; Gto setup-plots: S7 l8 K3 ?) L' D7 O1 _9 b
$ _* N# S w) n+ c
set xmax 305 m/ \3 _5 I6 |( H7 u8 K0 o& L Z
9 K3 ~; k1 w$ i) ^: w3 `
set ymax 1.0' ?1 |: B7 c1 S1 H1 o4 c1 c
6 R$ F e- c& z: g `2 Y" d4 b! }
clear-all-plots
% Q% a0 p: N* j/ l1 \/ ^/ Q& W+ x8 y( K
setup-plot1( T- P- `; A( Z% l% B5 X5 w
% O, V& w+ T% }
setup-plot2$ }6 E" c- M! N: b/ L# M& ]2 d1 N
% r6 w3 ]( h {8 o+ V, t8 c
setup-plot3' U0 m# c6 J" f
end
3 J9 K6 N5 G( F4 x' N
4 y1 O9 J7 `0 h" m;;run time procedures4 a O# \" \3 s
( f! {* i2 W( a# c2 Xto go/ u. w& H) U' ~( n/ C1 |/ \) f
a1 {- H) ]8 `( }. X7 Q
ask turtles [do-business]
' U. Y) ~9 @ y- [end6 d; B; [8 s" g2 Q4 `
0 \& C7 @, A. ]/ tto do-business 3 Q) K( \. V }% N0 L
$ M ~3 J2 }1 n4 G C% `& B" D
3 i: m3 K! |9 q$ t7 {, N0 u; V4 M8 Ert random 360
8 e% d& C4 K J# P5 u$ T; I3 T' w4 ^" {- T$ G* p/ e4 r
fd 1
" e4 i2 K1 J& h7 a, e" \: s% K- u- e6 i
ifelse(other turtles-here != nobody)[' S' q( P1 y6 Y3 o
- o% K' h( Y- a3 J; M9 b
set customer one-of other turtles-here
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6 ^# b- }* _3 W& n2 d$ N( P: u;; set [customer] of customer myself
% `7 c, a. Z% O: l8 |* ?) J/ Q1 h# B S7 l' |3 N
set [trade-record-one] of self item (([who] of customer) - 1)
9 s; p, y4 b3 x1 ^[trade-record-all]of self
* F( p. F$ y5 s$ f8 Z: x;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' i/ S1 T1 p& d1 ]5 J0 A0 ` e2 Q8 c; a0 O! q2 m5 |' o
set [trade-record-one] of customer item (([who] of self) - 1)
: g+ Z' G8 z% f8 ^- Z+ O[trade-record-all]of customer% b% A& q. I1 ^: B+ n
( G r/ W% w! i* n Y& e9 D! }1 u
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]6 P1 t5 D7 s- G! `8 w' ~# k; [
;;先求i对j的信任度% [1 n( N$ |: i1 v) y# h4 R
" V5 L' r) F# Z0 [; \% `8 n
if ([trust-ok] of self)0 t) z- w7 y# ?, x- v
;;根据i对j的信任度来决定是否与j进行交易[0 ~, f. n3 h4 i
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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2 b- u% ?: A; \6 S: b[7 d7 \1 L( ~; q" C
, M) @& Q$ q& p$ o: M! }& r
do-trade/ R4 [ ~5 Z& v6 m
; O: H2 F( t: I8 G% c pupdate-credibility-ijl! @2 W1 Z6 G1 @6 l2 j
# Y: Y' N5 u- N( cupdate-credibility-list
4 j) d+ i% [. L& p
/ }, z, M( x6 U6 f) K( n0 l% k, m5 ~5 v! ]
update-global-reputation-list: Y$ u# K$ {# @$ ^& [/ e* z7 g; Y
) D9 t) J. b! \$ m P s5 W( b
poll-class! K( J" d) n" G5 y6 S
0 P1 [; {7 D( ?; }; gget-color
$ `- y$ B' D$ _4 P" i! |+ y
$ d9 ?. U0 \. Q! j: n9 S]]
( B9 n' K7 f' T! x, }& p
# G5 y7 X9 z' Z; r;;如果所得的信任度满足条件,则进行交易
2 D- I4 C" s+ h
$ r* g$ @! m; C6 ?[+ ~0 F A( ]& G/ [ b9 x5 k
~) @2 M( x9 N* c
rt random 360 D6 _8 V2 _6 F7 q& I$ T& `) a4 }
! r# }/ E; V# s$ j( T
fd 1
$ k! m" I# l/ O7 n+ [
0 D1 T* u% b/ w+ g) I]* X; ?( }9 L, @- C4 i) t
: ~7 f6 n$ H0 o: Z( F
end+ T2 b) R Z m3 i( F" Z/ e0 C
- U1 s& h9 A* t6 g2 G
to do-trust " l6 ^# W2 f' N* J+ `. e& n8 p
set trust-ok False( ?/ \* a4 Y# m! [9 A
5 ~/ A- [2 I. A5 Z, ~
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let max-trade-times 0" v$ H4 B# a% N; t$ j
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# E- J6 j) x3 l) l7 o( A
let max-trade-money 0: c- e! ]. |5 o" v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 [3 x9 \! p" W; n3 p
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 \9 b/ s4 z3 J0 {* L- G
T6 i! ~% u( l7 O, i8 [! {0 L/ u- Y" K3 u
get-global-proportion- S8 c2 T" C0 F! e7 \2 u
let trust-value2 \+ Y7 U/ ?' R* ~+ W4 e3 |) Y
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)4 P& Q$ U* u2 A- P. E
if(trust-value > trade-trust-value)" `3 g, C0 {6 i3 P; c" @
[set trust-ok true]- _7 g/ x6 b7 Q+ B2 o
end
' w$ f- e0 \ r7 A( L3 K* }+ N7 ~1 M8 A! k8 L/ K
to get-global-proportion
+ f% W: o! C: N2 o) V* hifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
. I4 K: ?5 c0 G* w+ c[set global-proportion 0], _8 h( N: }6 J5 N9 `1 b4 Y. d
[let i 0
# h+ S2 d3 l) S6 f: tlet sum-money 06 u! r( j. a" x/ `: Q- v
while[ i < people]
* u: c, [! X$ n6 h( ]2 K4 P! Y[
4 y$ I0 Y4 {# p% jif( length (item i
7 U- @3 c* R/ ]8 v4 ?[trade-record-all] of customer) > 3 )& b, G! ~, @9 m0 ^% ^
[) \ O) i' _6 c) S* y! m$ b6 {
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 T; l. T2 M; ]' i3 V: _8 q]
5 k% m& L# y$ J$ w0 f8 _# U& j]9 o/ U7 h. ?" b. q! G
let j 0
( l, p* k% O! u, x' alet note 0
$ p8 G8 H7 I' d8 ?while[ j < people]" E2 {, d; P/ I) s/ J+ ^1 ^) K
[
$ N/ ]& f" a7 T) z9 rif( length (item i
) r8 B. j3 {8 \$ q[trade-record-all] of customer) > 3 )
) Q( e& c/ _- G; E+ w# |& q[1 p! n4 ~9 ]% j( i
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( E' S; z: U/ G0 ^; E4 `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] ]0 |: }6 e7 q+ T9 \' y, }$ x. _
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 S+ l# }1 a! r2 G
]
+ H3 S- Y) o7 k% M$ m]. {8 V0 t( q5 C+ C+ X4 P# R
set global-proportion note
' W6 R# l! Y* F% l]
5 x9 S: r$ C: z) Z y/ Eend
6 b1 o) y5 B: }* W# w1 y9 X7 }- _7 x; x- @4 I! P6 \, A
to do-trade
! y0 I( f: d. C2 H8 F;;这个过程实际上是给双方作出评价的过程
2 f7 I6 U- ?* } F% S7 hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( q: G& B: ~! K: d {3 l) e4 Z$ D, ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; @7 O, J! J9 a( P1 qset trade-record-current lput(timer) trade-record-current& `6 s- Z/ n9 _6 a! g
;;评价时间
8 V0 H2 Q$ }; w# V& `ask myself [6 q0 v& }& [- N* _. D$ }
update-local-reputation& z; A5 I# h. j1 o- K& u- q
set trade-record-current lput([local-reputation] of myself) trade-record-current0 K% a; Y- Q+ |! |" @& t2 ]
]
6 V8 b7 ]+ L6 L2 {2 | @6 U. }7 lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 K- W$ m2 q: S' D x0 P0 U;;将此次交易的记录加入到trade-record-one中
6 S" ]. G2 A* c; p$ O. Y, z% _$ }: tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself); d- q5 ~# [- o% A& O" F7 m2 m6 O
let note (item 2 trade-record-current )
- z& y! J2 N9 r6 pset trade-record-current- h# @- W" K, I7 o
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ j5 }& `& x" l& A% W2 z& Aset trade-record-current
# q$ g' k: L( o' q* |& ?1 i: A(replace-item 3 trade-record-current note)
* _/ p' k3 H' \/ t# d8 l4 W
! }( o- ]9 ^+ ]; T
, l' N5 v" `6 O) _9 z) S9 aask customer [" L4 J5 J: ~$ N; H
update-local-reputation+ @. y+ u# K9 ]1 b1 Z8 b& c0 M
set trade-record-current! ^9 h( I# U- ~. G
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* Y( ?6 [# ]( q5 ?]/ @3 p E# x9 P; _" _1 z( r# K3 G
6 ^ D8 N5 F) g, M: m
" K* y2 p3 r# Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# p" h. z9 e2 R9 R! J# o5 D2 F; F9 c& b! x/ e% F5 H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 n: u% O# q) P; h;;将此次交易的记录加入到customer的trade-record-all中
2 C0 N" q8 o; y- O' M' P/ R) B send" I6 P: q+ _8 Z3 o U% W
5 B* I* `0 |% D5 t" h1 Uto update-local-reputation
; w% ?" l" c) Q) }$ Tset [trade-record-one-len] of myself length [trade-record-one] of myself! O0 |2 d4 _4 u9 ?. F! o2 b
( H; w1 c* x A9 F/ K* u9 `- k: v, g
;;if [trade-record-one-len] of myself > 3
9 m3 b0 A) @4 [/ \update-neighbor-total# w8 U4 e; m" u0 t$ v' [) y
;;更新邻居节点的数目,在此进行
: X( J# L# i( y& {: b Blet i 3+ w6 a: @% V& Q1 W8 ^ k
let sum-time 04 R2 n7 T( n: X( |# T& V& J
while[i < [trade-record-one-len] of myself]5 K$ @) }6 h/ e* r( r. L+ p: e
[6 z) l% Y$ M" @) z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 E( R$ u2 \6 iset i1 e: M; u0 P* D: m4 M$ W7 } d/ w& c
( i + 1)9 ^/ \) I& R9 k# u* d& S: c
]" \) _+ P7 h/ ]! p
let j 3, K2 r _$ N/ r2 `8 f, K
let sum-money 0: U4 E) g8 V3 a* s
while[j < [trade-record-one-len] of myself], B9 W; j! D5 @! q
[' ^( S% }5 f. w8 T3 X6 s* ^) U4 w
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)
; g* F) Q8 Y! N8 C2 b% |2 M- X6 Bset j
& @+ b( g4 I- D2 P: X! O4 Z* U( j + 1)
% p5 C) q: i/ v/ V8 S% Y6 r]
( r" |6 U8 @0 hlet k 32 M z) P2 W k; C( f
let power 05 B( {: S9 y# d8 N8 X% v3 Z
let local 00 z# c3 O0 ]; z! X- n9 ~
while [k <[trade-record-one-len] of myself]0 }& }2 O7 r3 B5 n
[
2 q9 g2 } 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) 8 G2 b# c4 n3 F+ @8 k w$ }
set k (k + 1)& |# J, {/ Z' ` X& P, K
]
5 ~' ^4 y0 N" a0 t, D6 @' Nset [local-reputation] of myself (local)8 }# O. I" r9 X8 K: Z- W
end9 Z) M0 \6 A# n5 Q5 J! M1 P) `4 f
8 s/ q U- N, A6 z1 rto update-neighbor-total* ~# u- B5 W( X' T- N
0 ?- p2 ]) m9 i' _if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], Y5 W0 I% V, f5 c# Q
; q8 {& S+ y' e5 Y+ _
. X( D5 j& G% X7 `7 L6 _end
( F8 Q/ N- @: X* l7 i; R- a N. _5 D" j" S
to update-credibility-ijl
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2 g& E" F) P- V$ 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。
& Z! i+ M9 G% i7 ` i) \( v( h0 Wlet l 0
" Y7 q1 N Z: d: V6 I" }9 fwhile[ l < people ]( ?; c" R7 a; N, f- R y3 W% h$ _
;;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7 |/ p3 g2 E' p/ `7 y( d3 _
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) B$ j' A2 U! ~! Q+ Qif (trade-record-one-j-l-len > 3)6 I# B5 ?: ?3 a4 U' d0 L
[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
. o, v; E. Z# C7 w Wlet i 3) E- V7 V {6 [: B" ]# u
let sum-time 08 I$ h4 H. d1 }
while[i < trade-record-one-len]. a9 ^2 k8 j% o$ j# a$ y
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 g1 w7 d* K0 D. M) F
set i
! b J3 J' t) C8 y& E" o8 I( i + 1)
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let credibility-i-j-l 0# A. }7 `3 I+ n: N j
;;i评价(j对jl的评价)4 G) \/ K3 x4 r$ K, G! c- K
let j 32 d# R- N/ [: G- ^
let k 4
, n6 ]3 Z5 i; n9 y7 Awhile[j < trade-record-one-len]2 c8 {! s ]8 K
[4 {# ~1 m7 `, `
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
8 w1 I% O3 }) s% p/ m6 s( X( u' v" 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)
$ l5 z, O, t' Xset j
7 o: G1 k" ^( G' F8 |( j + 1)
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$ u; {# R+ s4 M8 V" r: zset [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 ))9 J0 `7 M6 k4 V; ^$ a& @
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ M. F- m& s/ |) Q7 A8 y;;及时更新i对l的评价质量的评价- ?& Q" |0 Z+ q& c2 Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 _1 O' P: G! J d4 uset l (l + 1)
* U; h: w( ~1 r! d1 |+ {]
$ U: y- H8 e i# yend
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to update-credibility-list6 L2 V" v# _( D' S- H
let i 0
* G) r1 g' z1 x% wwhile[i < people]% E7 m3 [4 C* Z
[$ b" F* B. ?2 E
let j 0
D7 Z$ b0 h: P6 H/ Ylet note 0
3 o) o9 O+ N3 E/ g. ?let k 0
1 d6 x9 z' h4 c, B;;计作出过评价的邻居节点的数目
0 B' I; {/ \5 I7 i+ \" swhile[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1); ^! h1 r* ?2 i2 {8 [8 c8 m- s" P% J
;;判断是否给本turtle的评价质量做出过评价的节点
" Y/ ~. T6 E! p[set note (note + item j ([credibility]of turtle (i + 1)))
2 C# `: q+ `3 t3 I;;*(exp (-(people - 2)))/(people - 2))]
* s' f! m5 \9 m7 X. Eset k (k + 1)' `9 v( ~ D T+ t) F& l
]: ]/ [( X0 e0 `4 A% a. ^% F, Q
set j (j + 1)
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1 u5 H2 c3 U$ j9 q2 Dset note (note *(exp (- (1 / k)))/ k)
' G/ Z5 K- l% I4 o% ?set credibility-list (replace-item i credibility-list note)( z$ `% T5 W& @
set i (i + 1)$ o. Q* p$ r, n3 Y0 \6 o4 I
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end4 k- I& K/ u: K
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to update-global-reputation-list5 S: J* c+ @* ^! O# N3 \. v* I
let j 0* B6 V# ]4 a8 Z& Y1 r3 g3 T+ W/ A
while[j < people]" A/ O9 K/ [1 A6 a7 a% r
[- n) i8 ]$ y- t
let new 0- Y! v, y% ^; |* ]1 T: q4 }
;;暂存新的一个全局声誉
: |5 _& q( Q' Z$ v2 Q/ q( p4 ~let i 0
) S, I: q! N$ Q) h* tlet sum-money 0
7 ~4 u0 ?' ~2 y5 t2 P. t1 v$ W% C/ Zlet credibility-money 0
4 l, S) C' S5 E$ q2 l6 kwhile [i < people]
7 m9 \1 Q+ s) V' c& y9 D: a[
1 F. ^& g- G4 cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 b7 A# }; a2 j7 F+ qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) Q* I5 i9 P+ q- f; M1 kset i (i + 1)1 L P4 x6 A4 Q+ d7 b5 R0 U
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let k 0( E1 g7 M8 z9 @; E0 R/ H
let new1 0/ X: P9 Q8 v5 d. j7 V/ g1 K
while [k < people]
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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 `) U, g& O2 Z, {: h# w: e: Z
set k (k + 1)" _3 N2 V6 {5 D! _- S7 ?5 h
], C9 O I( G9 U, }* H P+ \
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 [0 _' l, ?- m' vset global-reputation-list (replace-item j global-reputation-list new)# N% j# r3 {# ~# A- y* g
set j (j + 1)( I2 k* O9 f x2 E, b- U' s5 T) k
]0 k3 Y+ T7 D- y' ], ]
end
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f/ B2 R( k; i" m7 R5 b4 {% U' r: W$ {8 J9 t0 ^: `7 o
to get-color! j8 z0 |9 v' C& g' J% T }- G
9 ?9 W! N4 T0 Lset color blue
2 V; L" U* |. n2 D9 Qend
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. G% z3 x0 V: s! p8 A# K7 p) bto poll-class
1 a/ _3 {- R" a' Nend. F* }; J( c- a- B! X7 j
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to setup-plot1- c8 B a; Y: f9 Y) S
$ y5 u* \. z$ K9 l" t) ` E
set-current-plot "Trends-of-Local-reputation"
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2 D+ p2 i5 u2 K% }8 h5 M9 oset-plot-x-range 0 xmax2 y( N, ]5 C6 I d# y
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set-plot-y-range 0.0 ymax/ K; t4 c6 i* j- j: B
end
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: \( e: E) l$ ]0 `to setup-plot2
6 @5 h+ q* V+ |7 K* Z% U
( K! G9 ]/ e/ J" P2 uset-current-plot "Trends-of-global-reputation"+ s$ `+ H% \; m4 H$ B
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set-plot-x-range 0 xmax1 W' {- H( {( I( I# Z
! D. o( ^7 @4 c; `9 U: nset-plot-y-range 0.0 ymax4 Z& R/ a2 u: b) o; s7 W M5 v
end
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/ [1 g: u- N* g* c, wto setup-plot3
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set-current-plot "Trends-of-credibility"5 a% ]$ g0 N/ |# p3 N! n
$ v, \, ]* P1 P5 t9 kset-plot-x-range 0 xmax
$ y, Z$ z+ _8 ?% U; Z# z9 S7 l, {# m l: a
set-plot-y-range 0.0 ymax
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5 J: A1 F; ^, c) mto do-plots5 y, |: K- L2 I- {$ X# @; r4 R
set-current-plot "Trends-of-Local-reputation"
0 e2 t4 H' a. {+ d5 Zset-current-plot-pen "Honest service"
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8 c" R( M: D- s[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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