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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
. { T! C/ a, t- U/ L2 a+ Hglobals[
3 ^; u- u: e- }* @7 X; s4 mxmax
, S) L1 O) Q8 y6 Qymax
8 e$ v- T9 f: M$ y; T! rglobal-reputation-list1 u+ J/ m: R" [# P; e& x
2 T F& X3 t8 S& Q
;;每一个turtle的全局声誉都存在此LIST中4 Q6 u2 y/ G% C4 `+ z
credibility-list
" M0 [' @2 j3 {7 I& };;每一个turtle的评价可信度9 x/ q: [+ V* h
honest-service! f, L# d6 B; N* l$ A4 p0 X! d
unhonest-service6 S8 a- N9 `$ G0 o. w0 N
oscillation
, y& b" H3 M6 n! T( Orand-dynamic
3 ~3 b+ `8 F% Z8 y. ~]/ P7 _3 H' ~* i; C9 O
% p/ H" N9 R' b9 [( W, D0 sturtles-own[/ @$ E) T$ o0 U) Z/ l* r8 h2 v
trade-record-all: }; `4 u: B! {8 Y; x& w) X
;;a list of lists,由trade-record-one组成5 W: o/ G1 R" `- {% h! O3 j7 {
trade-record-one5 k4 v4 x: A% B. V# q
;;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 M$ a9 l$ C) J6 a8 s+ H( U5 j; K
;;[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]]
' {4 \/ o9 R5 H! qtrade-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]8 V/ B" t( Z- W7 S/ f9 E
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list( f* j# a$ L$ V, x* d
neighbor-total
0 ^( [( w) {; D9 l* q7 i7 C* h2 K;;记录该turtle的邻居节点的数目, @( _4 a+ [5 [
trade-time- K4 Q. \( s# A% o; |2 l4 o
;;当前发生交易的turtle的交易时间
' P3 L! X% D0 n/ @ Aappraise-give+ e, y& a3 e& b
;;当前发生交易时给出的评价% N# n6 N! Y2 j- l
appraise-receive" q0 h/ H+ a# v" Z" T
;;当前发生交易时收到的评价( {( a6 t# P/ \' |4 ~4 K$ v
appraise-time' L0 P) N$ J3 ]( [" y4 D1 {( L
;;当前发生交易时的评价时间0 K% i/ a9 o% \+ ?5 E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 l4 T! J4 ]- o( ztrade-times-total
) z! G. s8 _9 G4 T0 I( R5 F;;与当前turtle的交易总次数9 ?1 C5 i* Y" V: ^
trade-money-total& W& r( s9 ]9 D+ i4 U
;;与当前turtle的交易总金额# m, i+ Y8 n6 U3 o
local-reputation
5 W |, ]9 w% j; F" I+ T3 a x) rglobal-reputation
) t% \: P/ c% ]8 ~+ x P6 X) b4 Lcredibility0 y; m6 K3 Y7 a4 i1 t7 ^
;;评价可信度,每次交易后都需要更新
: T) l$ j U+ R7 o6 b) ]* Vcredibility-all' t. Y' P# `+ x2 h! H- ~9 f* r3 F
;;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
& ?. A$ y5 j, H N# Y4 ~% l# {5 r$ O' C
;;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0.54 i! {* c( _! q) }
credibility-one' ?! q1 W$ N7 N/ \, O5 B
;;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: G/ l" Y# L/ n+ w. X
global-proportion7 t2 f+ s( m6 d, X
customer
) x) _0 v$ I" l9 j( lcustomer-no7 |" R8 A, A# J- H* m/ j( o3 F
trust-ok
( ]) E' \ o- E q! x: Atrade-record-one-len;;trade-record-one的长度
+ U" }4 b; x! X5 G]2 W5 ], z! l* M
& |# m# C' r+ c$ D' e* U
;;setup procedure8 b3 J& z1 o' z
( A/ z* V/ |% [( A
to setup
7 o4 k, T. J, {+ n6 k8 s4 e3 I: p' q' K
ca
6 ^, Q) K; N" ?7 N$ W$ m* U1 ?9 t
/ O8 Q) S; r% N& s% u" y5 cinitialize-settings
: J# S+ j4 [' E2 s0 j0 U
l) [! u# z# Z0 R _crt people [setup-turtles]' v) W( q# K+ j% x
1 N, y) ?$ ?' O+ J9 q, ~8 g# rreset-timer, J$ q. O# Y6 ?+ ?- j/ i
Z2 C" P! K! H1 r5 X) z
poll-class
; d3 f+ U. Q2 ~! K1 d, i( R; c: U) C+ r' V7 X+ {: F
setup-plots
1 ^7 `- p9 k' ]/ f3 x7 c' U3 g! @8 r+ i7 B$ U/ \
do-plots
7 l+ T9 Q2 ?( Z6 d7 i0 }end3 w; z2 j2 d9 Y/ F, A
: `. j! M: ]8 p0 a6 [, R3 q2 W
to initialize-settings
! D1 v% E3 [$ D4 w7 C
# r0 {; m& }6 Iset global-reputation-list []- j- X2 C5 g8 |0 s3 m+ [ f/ _
i0 b" v# U: z7 S; o
set credibility-list n-values people [0.5]/ Z9 J6 P+ ]. T( h: a \
q# t$ O7 h0 h1 ]) u1 Y/ S5 [& Rset honest-service 0
' ]8 d- _# g* i$ S0 W: ~: U& W4 \
set unhonest-service 0
! ~0 y W! w+ A' w3 C1 i- w- \
set oscillation 0/ \) o, B) Q* z
) P) W7 x0 r# S( b! Wset rand-dynamic 0( R. ? I6 f2 k$ x1 x
end
9 [. R0 w' q6 Q) l* E0 j/ g( [& K/ w7 K1 T
to setup-turtles 2 X( P/ x' B0 n
set shape "person"
4 G% S" Y' Y7 q: q' F8 s5 A7 [0 g$ esetxy random-xcor random-ycor
3 v4 }9 l( A! d ]( I/ {set trade-record-one []+ J# C) I7 i8 Z$ s9 Y' y
$ w" F. z: p& x4 D! ?( Xset trade-record-all n-values people [(list (? + 1) 0 0)] . ~ q- E, d) p) M; t
) ?5 d# S+ Q e7 oset trade-record-current []
: \9 l$ g- ~0 a& |set credibility-receive []6 G- B& p2 y; p% j2 X6 B5 b
set local-reputation 0.53 x8 h$ [% r% d1 Q; P
set neighbor-total 00 `' d7 l/ R9 d' h7 f" c
set trade-times-total 05 A G; D G! a$ j
set trade-money-total 0
5 y! ~5 D1 G G qset customer nobody- X0 _0 E# C9 W7 B
set credibility-all n-values people [creat-credibility]+ z6 c( \" }, v
set credibility n-values people [-1]
+ Y5 A* Q3 f1 R8 w. X& q& e; a7 xget-color' c! q# E. `/ H3 p7 Z+ b
, x$ z2 j# X4 G
end* J+ B% W K9 J" b
/ k9 L2 J* _& _4 R
to-report creat-credibility
: d* X/ \4 g$ dreport n-values people [0.5]
4 X) ] t7 P+ v# h. f( \% e8 J1 ]end
. R* `& H p# s, d1 `2 z" M* N0 ? r# T5 [- e' u
to setup-plots. o( ^+ O7 l. I7 W$ |( G% p$ u/ N
, l) M9 i6 V; S! jset xmax 30
) D7 K2 [. Z- K; b5 o4 C. [; {7 U
) t% c5 e6 A5 c4 r7 T4 W: Lset ymax 1.09 U1 ?5 t; z* b/ i' k2 b5 \- q
! m7 U% L |1 \6 _$ Hclear-all-plots% ~/ \# C: i7 u) p$ U
4 v& `0 \& o' ?: c, e5 h2 a+ R- d% Isetup-plot1
4 _" X% h( ^6 G4 k1 k3 h& Y0 v) s+ p. y5 w( x% b& s: G
setup-plot2 Q- H1 A6 `1 A# r
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setup-plot3# x. P( F7 ^ p$ k* F
end o% E5 G8 P2 q; C: S& n
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;;run time procedures
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to go
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ask turtles [do-business]0 O! a% E/ f& E9 I' }7 M0 B- M
end1 D0 U7 H& R' _% Q" j
% I- I, l3 D7 i2 Q/ m7 C
to do-business ) [4 p+ j4 q, \. s. p
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$ u6 k) k5 z; Q) U3 Z! O6 P' [! d+ art random 360
* f0 K/ V& e# Q: v0 y4 O( N' i* s7 ]' u
fd 1/ E! y1 Q$ K% k, ~/ J3 X
' w5 C/ J; w- o: Aifelse(other turtles-here != nobody)[' O3 S% M1 Y7 u- h! K" Z
% B2 E; x$ s+ {$ N5 [! K" k; E/ k
set customer one-of other turtles-here9 b& e) ~5 O. Z% |1 h& d/ Y
; M0 e% f( Q8 n; i
;; set [customer] of customer myself& k) a4 X+ U& S7 V
( \8 I- T( U6 \9 Aset [trade-record-one] of self item (([who] of customer) - 1)
/ P: j, R# Y% d4 K7 c& L1 L+ k[trade-record-all]of self2 @4 j) b8 c4 g
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( ^" h# Q6 R# U5 \" ^; L# n/ t2 Z9 }* [" T
set [trade-record-one] of customer item (([who] of self) - 1)9 [* ?7 @7 N5 v) S& E
[trade-record-all]of customer6 i2 S+ E0 w' G% ?1 K1 ^; r X
( F! W9 }8 q& J# ^, V9 O% `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]* J* y2 [3 a7 w2 l
;;先求i对j的信任度
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if ([trust-ok] of self)8 g- _$ _" D* L: x) }3 b7 ~( `
;;根据i对j的信任度来决定是否与j进行交易[
3 l/ T4 n+ Q6 w7 k; Zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ f3 u/ P( h) h5 b
) R- v, P' b. ^- f$ B[# ^/ E s; e7 E8 O4 y6 q, A) u
' f0 V7 w" \9 V+ ~5 ?! ]" D5 {
do-trade* i8 a1 p# J7 Y3 R
2 _* T8 R2 s' ]
update-credibility-ijl ? [1 }% ^/ o7 Z& u
" }& \8 a+ `% G9 ]' xupdate-credibility-list& }6 k9 L# o. c" j# T5 @1 {' j
. }& I% C" h. q# _) d$ `
4 P4 D" a% A: ~' F J' [! i' H* e7 v
update-global-reputation-list' d. U9 i) D6 d
3 i- g( [( W0 u. R& c8 B) ]# T0 epoll-class% J4 \9 `2 c1 e2 ]
6 R, X2 g6 }, r6 O u$ u |get-color
% y7 C) [0 V/ m6 I$ F3 W; z
: z$ w$ H. {+ X5 E8 N]]$ s- u8 G/ ]5 [* E5 \9 a* u
& x& _8 B2 q- e3 |( t l$ M. e
;;如果所得的信任度满足条件,则进行交易. ^9 D# r! o O- m" p6 K
. x* p+ L/ E- c. o8 V7 R, o [[
9 q8 H* ^; f" v! z9 z+ P: D1 z8 u9 o1 H( C! X
rt random 360
) S6 Y$ e/ l$ @+ K8 r/ J$ o$ o" E: E) l' [+ W( ^
fd 1
, f) e6 _; e- g! s7 B6 _* g
- F, @) u1 [+ ?2 ]]
( p9 g- g: R. Y5 w; J. t0 f
4 Y1 ]4 a, |. w6 g3 Y& g7 l& Kend' Y5 ?: m2 O* `( ?$ n4 B' A9 C: C( T. N
, a z, L# s+ Y( I8 X( x. j6 nto do-trust
, U x% k% T K# X4 s2 t7 y1 e, Hset trust-ok False+ C+ P9 \4 o3 b2 i7 f; B/ N/ I
3 h# b; S7 R* k3 \# D
6 r6 L, T, X) ]$ O- l' G
let max-trade-times 0& H1 |% v5 q# \# [9 n0 @
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 b" X1 o4 I, w. a2 R
let max-trade-money 0
3 ?/ x: s/ ~( K$ V/ ]0 }/ U5 K- fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! b* D9 W6 G- ` L' U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" I7 @4 ^( B* M
; V, N$ P3 I, q$ A' N1 V! t
; ]1 }3 v/ h7 h! C9 }+ e! Oget-global-proportion
) }- J& I; C6 S8 W# K5 c) N2 rlet trust-value
' J/ a: m! ~) H' N3 O3 o5 l3 A5 slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
& F- G m# i0 X' kif(trust-value > trade-trust-value)1 K, x B4 z6 v
[set trust-ok true], u+ V6 a( _+ J l
end
) T2 W# ?, ?" q7 z2 x5 Q/ t# x2 Q# L/ K! N W
to get-global-proportion: I: v' T8 o: {4 N% S% A7 o7 r7 L: ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
3 z5 H: }) w O6 u[set global-proportion 0]
R7 Y- Z5 T: @1 I& ?" j[let i 0
8 d* \* R# |0 E& Llet sum-money 0
1 W% [5 g: U! |! t5 Y& kwhile[ i < people]
: o) S9 b \( V: i3 o3 K' q4 p# _[: p4 c) @/ a7 J: z
if( length (item i3 l3 U8 O8 J7 S" `: m
[trade-record-all] of customer) > 3 )6 ?2 R/ Z- H& Q8 W# R# z/ @
[3 r! V8 o# H8 l4 `& I* L7 i4 Q, N& C
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" X* `6 R z% e" [8 @]8 T! U( a1 n7 f0 b' q
]
% R% p7 T% @3 o; }let j 0
) m2 \* ]0 ~- y0 ~+ I" E& Ulet note 0# R/ |) K5 F4 B, \4 i
while[ j < people]1 c2 w- P' `: |: Q( Q
[1 m9 y( z9 r' A3 |/ l
if( length (item i+ {) i% X4 m$ `8 f
[trade-record-all] of customer) > 3 )2 S5 ^& }' f- _
[
: T/ B% P. ~3 q" V( I0 S0 Qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( h2 v7 B; i* v# {+ f8 I0 k[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" y7 v4 m7 Q9 _* ~, ^7 f2 O[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% S' v, W0 K: l]9 A2 f$ o- I- n+ ^+ @9 f
]$ P% J! q) D$ w
set global-proportion note, d2 ~+ `) t9 d5 r0 J7 u
]6 |1 u3 M4 u0 {6 x! Z
end' @1 e& D, ` R3 U* H
2 f8 C5 B- ` ~9 z8 O& J
to do-trade
/ j+ _1 d6 C8 K+ _;;这个过程实际上是给双方作出评价的过程" B+ F/ k6 C5 `) {1 o: |$ A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 u* c7 u: s9 V4 H2 q! ~3 [. Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" F S3 c4 s0 i& ]0 S! x" Cset trade-record-current lput(timer) trade-record-current
: d6 x5 b$ I% z/ I;;评价时间# [# l- t+ E5 w( l) h F) K4 U
ask myself [0 c8 s: f# l0 ?0 @7 [
update-local-reputation3 A* d- e) a) X9 Z7 l! a' k
set trade-record-current lput([local-reputation] of myself) trade-record-current/ B1 S, H& k! H7 s6 c8 e4 W
]
8 I: D: O' M4 p* i& r! ]; x# zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, {6 Q1 p0 @$ t8 o" ^; H7 Q! b;;将此次交易的记录加入到trade-record-one中9 E) ?2 k) {6 @' B: @% i# h# Y. \
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" F, O6 \ G7 j3 t! E, e
let note (item 2 trade-record-current )# @) I) I" [/ z; w; a: E8 W
set trade-record-current. A: Y* Z; R- @2 X S/ ]7 w
(replace-item 2 trade-record-current (item 3 trade-record-current))/ m8 |, l, A+ O& Z$ V6 \
set trade-record-current
8 M+ F. L& H/ B( Q# K; k: w(replace-item 3 trade-record-current note)8 }8 t+ i. e4 T4 e
; g t( w4 |& e. Q- @. l
) [. n9 U/ w% [: m4 Q8 dask customer [
7 C5 u% B; N3 u2 Vupdate-local-reputation
/ @2 p) [0 H5 s% o6 `3 E( j% C' mset trade-record-current
z% ^: c6 I: w6 S, l0 @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" w( Z$ X) z2 X]) k! D5 O8 f5 c r
3 F) j) E, R% ^
& P9 I( b( b# F: Q l4 q2 h* y7 {set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. H; G3 r2 ~ k( X) b" Z+ u, N: y4 N8 b4 J# U9 V' ?7 W* e
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! {, s9 B' R$ r& n
;;将此次交易的记录加入到customer的trade-record-all中, j/ e4 ~7 U* |& E* V- A
end
6 d5 }: c6 P! ]: \
! m- S: M7 N/ N: E6 {* hto update-local-reputation# c' N$ G% g2 o, \
set [trade-record-one-len] of myself length [trade-record-one] of myself% [ K3 a, m3 e% C B$ n
5 R1 X$ W2 g, l% E3 u
* b% b5 D/ I; H. T. B2 ]: ?
;;if [trade-record-one-len] of myself > 3
5 q( ?; @' L% y( H9 M$ v- D& lupdate-neighbor-total2 l x# n7 N3 x) ^8 L+ i+ u
;;更新邻居节点的数目,在此进行. G5 `7 n( M9 }
let i 3+ M R0 q, p/ M5 H6 }
let sum-time 0) S' `% x" B6 T+ a3 j- i. q5 p* L
while[i < [trade-record-one-len] of myself]% {0 @' V( [: y: T5 m2 q
[
" P8 m4 N, @, b% J" F7 Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ @. c( Z0 O$ x+ S5 }0 gset i1 v- J6 g6 D' n; d- {0 w. x
( i + 1)
& W2 X# c7 V5 ?# P0 }6 ^. P/ Y]. m( r5 A& J& m5 a4 w* t. V
let j 3
4 q6 }- n3 j) L6 E5 W3 Slet sum-money 0
5 Z e7 t+ ?/ o" F- H) {while[j < [trade-record-one-len] of myself]
8 u# v. O. N7 d[
' a* r _+ ~( J% @9 o- eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)6 y: v3 S* B! n4 I: p, f, n
set j. ]* s6 ~/ ^9 A# p$ }
( j + 1)
( _; I$ [* b2 f6 _% X- _' d. Z]
; ?% t* @+ Z( M+ U; W7 Blet k 3
* D; N% z3 g: S" x" }let power 09 f+ d) Y: m/ T0 x) o9 P; c+ |
let local 00 `+ ?+ W1 X3 e& ?# ~
while [k <[trade-record-one-len] of myself]" `: X K7 Z4 d$ @; j
[
& F: x$ M0 m, Q% i" B+ M7 Iset 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) 4 F' U b' E" |- g/ o3 y
set k (k + 1)
* Y% @) `; J- f* n- g' B]# t! n0 n) W4 B8 E( b- a
set [local-reputation] of myself (local)2 T4 t$ g( s! u! e, Y1 D
end! W2 z+ U% V. U+ p2 O! Z
2 |( C3 o, k6 W- s4 \) F
to update-neighbor-total( R: r/ ^& l$ n0 z; ^
* h; f8 X% w; X' C, \
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; u& Y$ [7 Y+ h% f2 b5 L
+ Y. P( c( E Z' O( [( E+ D7 ]: p/ p. D4 v$ `" R' |: Q( }
end
" |/ v( H: }( e& @4 x9 n$ h. I
1 n- Q( p6 g: Y: G. c( B" H6 gto update-credibility-ijl % M. `0 c' ~4 p& A; A
( g5 |5 F6 A# ]+ n5 {9 u" u6 m;;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。
: B9 o( m: F2 Z5 Mlet l 0
1 W& D7 F0 |9 i: T0 m# y" {while[ l < people ]
5 p, O" D! W/ h+ {3 L$ z. x;;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
0 w5 ^/ C, s4 ~[& v" ]+ J0 o, E
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 D6 u0 o; F0 ?! W3 T# O
if (trade-record-one-j-l-len > 3)
9 F6 F- I! x1 X: Z( r/ I, B7 s[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
/ W+ E1 ^/ S7 H d# _9 _7 slet i 3! \' _( e5 Y3 R/ p' ]+ \
let sum-time 0
3 b( d1 A* j5 ?3 dwhile[i < trade-record-one-len]
) b' e; p3 s& W) z[
. d7 d+ E, X! lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 b4 Z8 |0 k! h \' O4 ~set i7 N( J: V6 H, y5 {# ~. t( @9 J
( i + 1)
9 t+ [3 j. Z5 F* I9 e2 h]0 t' |5 h [3 f
let credibility-i-j-l 0. o6 l+ r* E0 \& K# T& W( [
;;i评价(j对jl的评价)
! S+ l/ }6 p5 y3 zlet j 3
2 l) w& L0 r" Qlet k 4
/ x; k- |5 f: Z: P! p @/ H! Swhile[j < trade-record-one-len]( q. |, d: Z" l( j- w
[
" F1 V- [% T, G3 y3 dwhile [((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
9 I- l% I" W$ q0 c0 ^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)! R4 ^, B# E; v: i
set j- _1 {5 w) _) A5 {- a }
( j + 1). r* b# o1 Z! E: q
]
, Y7 X7 p$ Y1 Q& [8 E0 xset [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 S& ^" x/ D% M
0 z5 I$ S# F5 {/ ^+ d, o
. S6 o- ]% a$ E2 V, d% O
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 z5 C* V3 H1 y( e& j0 @# p
;;及时更新i对l的评价质量的评价
, y( X4 `' _) Z# x" Fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( ]8 S, \! c3 ?) v8 }& _
set l (l + 1)+ I( v8 a- @5 M9 B$ N; `% R
]
5 \7 d1 |- ^# H& W: g4 n$ ]$ K* Uend
+ i$ l$ N0 V9 p! O6 F( r l6 G: k! c1 j5 J* v$ h
to update-credibility-list
0 i1 B6 R2 n2 olet i 03 k. g1 `9 g2 S
while[i < people]4 C6 z o3 J' q9 t( u
[$ X% a5 ?& Y+ L2 v$ ~$ R4 o
let j 0
4 t# N6 t3 ]5 O klet note 0 ~( q. l/ k% v" l. I% T
let k 0/ D: m- |' [% ]6 E$ M$ Q/ ?; x4 s
;;计作出过评价的邻居节点的数目
" _8 h* t$ m! w1 e2 Y Q* cwhile[j < people]
! ~) m- |4 M2 C5 p9 M[' H: b! L9 v: Q: @( {
if (item j( [credibility] of turtle (i + 1)) != -1)& \* ?0 J: d* U6 z% U
;;判断是否给本turtle的评价质量做出过评价的节点' s0 a! _" {& N# c
[set note (note + item j ([credibility]of turtle (i + 1)))* G" t% H# V/ @4 C) [6 W' s
;;*(exp (-(people - 2)))/(people - 2))]
u( Z! V7 G, k# o& Qset k (k + 1)
) |2 n3 _1 c8 T( ^& i]+ Q2 P/ q% [ b+ w
set j (j + 1)
, a( j W* O# ^- ?; a8 A& N+ x8 g]
) @+ y" S5 v* n6 A' t1 f2 Zset note (note *(exp (- (1 / k)))/ k)
: ?9 o g5 ? P' d9 rset credibility-list (replace-item i credibility-list note)+ U) P* N* U* M8 D- r
set i (i + 1)5 Q+ [0 z w1 n$ I: X4 A: u' a# L
]1 B7 k% B' P! ~! s. S6 z& [; R
end1 p. p2 y" I/ [2 e
) s6 D) N. ?2 N: L3 Dto update-global-reputation-list
9 x1 ?4 E# b# K) e3 j4 Z& Wlet j 01 `9 E/ U, c/ i7 Z, E* P+ x
while[j < people]
6 q: [7 f2 h8 S) n4 {8 }, V h[
5 M% T0 B, A0 P! f6 d! {let new 0$ y2 k! ?: C R" G! a! x
;;暂存新的一个全局声誉. I& k/ C9 i2 X' P/ A+ V
let i 0
) S7 h! L( ~% Q5 |let sum-money 0- J% q2 e" L* Q! n- l% B: T3 I+ I8 q
let credibility-money 0
: Q- ~1 j/ i& e: g; S0 pwhile [i < people]
5 n% N# w0 L8 n/ V# K9 i" A+ Y[
- e1 U4 U0 H9 I* P5 x8 w0 Q% {# xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" k( t8 d4 v4 W1 v4 D+ R& Bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 ~) b2 ^0 [. A8 J9 d, l- X
set i (i + 1)7 t3 A1 P: |& Z* m. N
]- o8 g) L4 a( f: S1 m' p1 Z
let k 0
% l$ i$ N2 @6 m, g+ Mlet new1 09 h0 U K D4 t
while [k < people]$ c# U% _3 A: m( u. A0 n! O7 ^
[7 J& T$ Y$ a6 T6 k6 i
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): K1 U Y& K% H; g' H+ B4 ^
set k (k + 1)
8 Y6 T5 w8 A6 \0 v; G; e' ^5 y9 p/ {]
. t3 U$ `9 _* ^- I) p2 bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; N! V' L) c) N, N- b6 M4 h
set global-reputation-list (replace-item j global-reputation-list new)4 B, L# G' s. R( N- v% y) }% R2 }7 J
set j (j + 1)
% n: w, r d) ~( _: y]
, E4 J6 h% ^5 send
. I! ]' C4 H9 ?9 \* q# G
& o+ ?# e( _' ]0 f/ o8 N3 s* u, | n! k
3 s- M, m6 I) rto get-color
$ h3 O9 V! W) D$ |3 ~4 W+ E% Y8 ?" h0 W; C
set color blue' M) D: J, `5 n0 n. R$ T
end( w; P" m3 O+ U' L
4 @, c: j& A) v. |0 l+ u5 ^' m. I
to poll-class
1 |1 _+ j! _7 D7 c" Aend
7 S/ |/ k. _& u( M4 y: N$ K) |4 y/ X3 z9 j- G, g* e
to setup-plot1$ E. @ f: a5 {% h( G2 q6 A% N; k
u8 h% e3 d! @8 N& lset-current-plot "Trends-of-Local-reputation"
% s( {* X1 x* Y7 G9 F) t9 b. V% U
set-plot-x-range 0 xmax% L( P$ {# m* h' m. v/ _0 f: u+ o
) z7 `: v( C- }, c* ?; u
set-plot-y-range 0.0 ymax
; m- `( I$ f) X g ^$ Vend
. _, U7 e+ j. x
8 E+ _/ ]) O' h9 b) v: u4 A% xto setup-plot2
2 h* a" Q" |1 s3 j, l& Y# [. F: E0 f1 H+ p. F
set-current-plot "Trends-of-global-reputation"" B; D4 a# h+ {% q5 g
* W/ {( [: H$ I8 g3 Wset-plot-x-range 0 xmax
$ c$ q* P5 }7 F' ?2 Y4 T! N7 n2 r# Y, f
set-plot-y-range 0.0 ymax% [4 \' \* h# a6 ]
end6 U0 q) F, t; d; z* [, `$ S
2 f0 J) J2 Y+ j# E' o( l! H1 m5 \
to setup-plot3. l1 }4 h, m: _3 V; k4 X
+ f5 ^6 ~/ X F# ]4 vset-current-plot "Trends-of-credibility"6 f# E% k' D q5 g& X Q/ L
0 o& M1 t! _3 U8 n6 J' U9 \" fset-plot-x-range 0 xmax
" t, h8 P6 l+ l% r: _7 {0 h. m9 n, L+ W4 {+ t
set-plot-y-range 0.0 ymax
/ L% [. R$ @5 ?4 p& z" g$ G% @! Aend4 k. G9 m0 N& E8 A+ }4 F; Z
: Q; G8 o! W& U! x! T. x. Z4 Vto do-plots
6 x" i1 N0 x' |4 a/ A. c3 uset-current-plot "Trends-of-Local-reputation"$ M9 h- O$ L3 h* l) @- n
set-current-plot-pen "Honest service"
, t& b9 m! w& q- g7 jend
* ]) {3 D+ I1 j& z" `
+ \; ^# o: Z/ k' M[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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