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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+ z! ?+ K/ x2 w: T- ?1 R% y6 k: p
globals[ d" R0 {8 q8 f% o+ ~3 v' V
xmax6 `5 x, P! Z# R7 K
ymax
! D# a" M+ c x% ~global-reputation-list1 M4 v7 p" ^: O% Q+ e9 d0 {
& B" ?7 b* n& Y" \( y/ {
;;每一个turtle的全局声誉都存在此LIST中
. x& z3 v9 o% Q9 p4 |credibility-list
: P+ w7 }8 E1 x6 O7 W3 \, I;;每一个turtle的评价可信度
6 z% P W8 q5 w* v5 d7 rhonest-service5 N" }# g) ~2 J. E( o* j
unhonest-service
9 u F$ h& ?% ~% v8 U4 Goscillation
& g2 j; W2 E4 O5 C1 Z2 w7 }rand-dynamic
+ Q: r' e* n4 Y- A]
) M3 M: f3 m% A1 i/ D& {; ?# C! G2 N5 @) ?5 |6 x. v
turtles-own[
" l4 Y8 V" h+ t; u! i0 l( itrade-record-all" n* b! g) V6 R" ^4 _7 `
;;a list of lists,由trade-record-one组成
7 S. i- M* F" ]9 Y6 ?trade-record-one, p E) `: l6 x/ N/ G0 `, W
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- ]8 }1 X+ b, {) X1 b
3 k* Y( H& I, U- ?( O8 H$ }6 q;;[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]]
( e9 J* S4 Z/ I/ D. d1 |9 A0 jtrade-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]
; ^) [( g; X, Jcredibility-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' B! P* h- L/ J/ M0 j
neighbor-total3 ^6 p8 H- [9 S' O
;;记录该turtle的邻居节点的数目7 M2 r3 D' r) S- R! r E$ J& E
trade-time
4 O! |/ ^. U1 m! I, ?;;当前发生交易的turtle的交易时间2 ~+ ]4 V" y, J5 o8 ~5 y* `
appraise-give8 i: V9 }3 S& k2 {; A4 u
;;当前发生交易时给出的评价
0 w1 C5 n% ^$ S6 yappraise-receive$ U) a5 |& x& {2 U, k8 a
;;当前发生交易时收到的评价+ V1 |, d( F8 u. J" @0 J
appraise-time
, D: g, l; v- F;;当前发生交易时的评价时间' p6 K; I' q( B/ L( i7 n) ?
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 Q2 X$ D- }9 T% C) [trade-times-total
* N/ t/ K8 k- y6 L;;与当前turtle的交易总次数
' l) R& L) [% }2 N5 Utrade-money-total
# g) |: y& U7 w$ S7 p" D% i% h;;与当前turtle的交易总金额
" R5 D( o7 `' O* u4 X) x+ flocal-reputation( G% v I1 n. O" ^6 Q
global-reputation+ A* d5 O. v. V( F
credibility9 N2 O$ S; G# w. i
;;评价可信度,每次交易后都需要更新
8 F% p9 c! H# M! Ycredibility-all* ^+ T& N9 }+ E7 l( s! C$ E S- T9 P
;;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" M9 l/ X% E- W4 o! ]
- n4 w |9 E' s6 D: R+ F# `;;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
! f; U" Y/ b- w7 P& v I" zcredibility-one
4 x2 |+ m6 o. \1 j;;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8 \6 {( u c+ a2 E$ q
global-proportion
2 _' i9 X& U, ?6 V$ p! [# ?8 Mcustomer; E2 K1 N) x; [! p6 _
customer-no
( a/ ?; l9 I; R: Ctrust-ok/ k7 {5 u7 k0 C5 V5 x: Y8 V e
trade-record-one-len;;trade-record-one的长度
4 f: h, H1 u; P% k+ q]
* J' n2 m+ ^! h6 Y& D; a
- R0 ]: T& N3 Y8 e' \7 t! k4 S;;setup procedure
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to setup$ U) m: x E+ I6 D2 [, d, m
2 c) K7 j+ B1 t5 [( R9 Y4 ^$ Hca
! l& w( Q2 d3 Z* \! M2 B4 B- Q0 A4 q7 E0 A3 @# a7 f. C' ]$ U
initialize-settings
% R8 u0 h! c: T* v: y
& Y) j# \6 b2 b f& e+ L) K2 wcrt people [setup-turtles]
/ t4 `: x. Q% A4 p$ f+ C* a$ A0 e+ g3 L$ Q4 i1 q
reset-timer
# i$ A4 H; A* {0 N
; L: ]6 t/ Z: bpoll-class; L; c7 e7 e6 v v
8 g$ I/ K! h6 o/ E( |3 Rsetup-plots
: N) u: l( ?! T
# G0 {/ y' }4 jdo-plots
0 K2 g9 e0 v$ G8 ^8 u% S$ V/ cend* }" J8 }) ?: }2 x" @+ M& z- Q5 o
4 u: s) {/ q7 j* Tto initialize-settings! c3 U/ g# A8 e
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set global-reputation-list []
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X4 J5 b# Q; oset credibility-list n-values people [0.5]# v+ g' x- n! p8 k% k0 D% W5 \4 \! k1 O
6 b; b/ a3 J2 j s" T6 [. S
set honest-service 0
( S9 r! i$ L4 H. D+ D& p
# t) _8 O' f: F1 Kset unhonest-service 0
^* P8 l( m" m3 X6 a, I5 J
9 h6 W, X, ^- Y6 U3 q B; [( yset oscillation 0
" ]6 \: \# }2 n+ S2 Z# n% q. \6 X+ j( k) y1 j) ]
set rand-dynamic 09 s3 D6 E% W' N/ X, G/ M, N
end
$ [" q/ Y6 e3 ?* k' \! G+ n! M/ [6 u" |& i- j' r$ T7 f& C
to setup-turtles 4 W7 Z1 F0 F8 ?1 f' x" A" {
set shape "person"
$ [. {% x, a/ d: k+ f7 Esetxy random-xcor random-ycor; B" @" m9 I/ |% `& E
set trade-record-one []
0 A# @& m9 e( F: T. D! ? d$ D J E% o7 M1 d
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []/ g1 z7 J2 K, P; \$ c% |
set credibility-receive []: N# @ M9 J7 T! z9 C
set local-reputation 0.5
7 S/ v& K2 `0 ^( |/ ^set neighbor-total 0: N) R. c/ M) ?: e9 d
set trade-times-total 0. P: W# L1 ~1 L% W) k7 I
set trade-money-total 0: N; q: M( k& x" b, n) F- X
set customer nobody
7 T5 E2 j9 y( lset credibility-all n-values people [creat-credibility]
V3 S* _' \: }set credibility n-values people [-1]$ ]$ Z o' R: v5 }' g* H
get-color
+ Y( S: O H# T% i, L' @$ W2 b
6 j* k: D$ h/ w; y, @end
5 _4 q" i& k; ~. J
C( e3 r6 W. v1 E E( `1 Jto-report creat-credibility$ E$ i/ l7 A9 K: I( T8 f% l
report n-values people [0.5]3 R& b8 x6 u! v
end$ o6 J! `- h# d5 Z! f
3 M7 z' o k* @( f- u G
to setup-plots2 G [" k8 W1 g* [( D% T
" z2 _3 y7 D. a0 H9 vset xmax 30$ h1 \3 L) g, L/ ` ~: }& F
/ B$ {. G j+ yset ymax 1.0# y8 B6 u9 I! B9 Z8 H- s
( Q$ ]3 H6 j# g& T1 bclear-all-plots
# y' {- J1 ^0 v8 |& t, x5 l
( y9 V8 j- r3 Z: o" Msetup-plot1
( {: w4 ~0 U+ H4 {/ @, n/ a* w4 D8 n5 Y; e, {
setup-plot2* F) c& \% }. G! Q, L# K" s' V
3 M8 t4 g& ]4 Z' Ksetup-plot3
. ]# v0 w& P" d. D3 Jend8 E# m( u! a2 L" s2 f, c4 c, X6 Q
& B" b8 `; K' F6 h
;;run time procedures
. t+ b, c) Z, z
1 \' U& l$ q, a. [0 A: h3 sto go9 g8 j# Y& F& y' C3 }
. b/ Z J8 ^, |5 l" w0 w* r/ n" ]ask turtles [do-business]
4 q8 X8 o& v5 m, L/ p" `end1 u! K* V4 S1 v( O/ H) u/ Q
+ I# V2 M+ ^" n( n7 G
to do-business * |9 R6 L, |& k" r* r& S
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& i. d; y5 o9 ?. Z( J
rt random 360
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fd 1) t1 v3 c' J/ ?6 ?$ B3 W% H- ^
( C4 ]4 u" k# c3 h! q% Z
ifelse(other turtles-here != nobody)[
6 k2 j1 O* x/ D V) ]
& e* A0 z8 a9 t8 C1 @& lset customer one-of other turtles-here$ v; X; z1 m# t
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;; set [customer] of customer myself E6 U1 J& }. X3 m
2 b" a6 q% C! O1 U% a2 p
set [trade-record-one] of self item (([who] of customer) - 1)5 K- r. P0 v& @- ]) j4 K
[trade-record-all]of self( [2 p4 R% p+ s q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; A1 E/ g! B* _
. l/ L- S1 l' {
set [trade-record-one] of customer item (([who] of self) - 1)' e$ z7 a( }) P W" Q
[trade-record-all]of customer
! x5 R) e% l- W, t Q2 {) h6 }) C4 X0 p4 ?9 t
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))
& Q9 A1 Z$ F3 B) Z: [
: t9 ` t" v; E" task self [do-trust]
4 M/ s0 O) z7 |$ Q( I;;先求i对j的信任度7 k1 {+ d4 R4 T4 t
# M6 ]! M5 |" b+ h
if ([trust-ok] of self)2 l+ Y0 H" j+ }, G
;;根据i对j的信任度来决定是否与j进行交易[- [) M) i% T+ F' Y& U
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' h$ R' b/ H: g9 W
+ {4 Z, X. Y! n* S9 A
[
0 O! T& C+ X0 J" I7 Z& w) e# P+ m0 p4 Y- a7 `2 R3 V% m3 X
do-trade
2 D. ~9 |2 H' g, ~* g+ E b [& b' U3 W, J' K u
update-credibility-ijl F8 L: B! C0 g1 l: a- W9 M) _
8 F _# R! E# Z! m- M: T! V) yupdate-credibility-list8 C/ w0 E F$ t$ \. |
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# P3 m! D( q k" e) ^+ l
update-global-reputation-list
3 `; K1 n$ V% h( i# T& t- C. ]
2 | |. ~5 ]" w4 H% C+ x0 H( Apoll-class. l) ?; a2 {" i7 n/ u7 j9 Q" G$ q
! e. b; {+ n0 A' i0 a+ s: r) k. L
get-color2 v: Y: P% t: o8 p% |5 w; O
( a1 k& ?) w( }- w1 L]]. p+ w0 P0 s; _
3 S9 N: {1 b+ w. i$ S- e;;如果所得的信任度满足条件,则进行交易
4 y: K' w H ^) v$ V
8 P: J3 k, y0 V$ ?& ?, H[
# Q( g. G0 n& R8 y' L( x. p$ F: k$ y8 Z
rt random 360
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fd 1
8 d r+ n$ B; I3 i( E0 \1 ]" C) }2 d% P$ S1 x+ Y
]
4 a6 Q1 Y4 q+ U6 }8 j) ~2 j& n' h$ ~* d
end6 G5 T; w4 Q. l7 F2 ^
. Q5 |- A0 o( i. n9 Z Nto do-trust
% p/ B) d7 x9 `set trust-ok False _( [* r' K% Q, {6 }9 k9 Z$ } t% @) }' v
8 a# T( o/ T0 f2 E" V
0 O3 c+ E% ^. O; ylet max-trade-times 0) \& ?- C6 `1 t, {
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 \- Z) A: y) O9 T: o5 b7 H
let max-trade-money 0. T, O# r9 j; f$ ~! X% S
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 g: L/ D+ M# q$ q- i+ d
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ }$ b' b: H" _1 V
8 S5 h/ G8 Y" s# `3 j; Z) x# _( _, a% b0 n. b! Z( U! M+ ?5 w& r
get-global-proportion5 U5 j, T9 M3 T- [' \8 i. r3 j4 D
let trust-value
i' p2 X2 G" K0 m2 P ^- ?3 Elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
* p4 K* g6 ~' Mif(trust-value > trade-trust-value)1 w0 e" e1 J7 j
[set trust-ok true]
5 F! b/ ^/ n) z- P# l2 v2 V6 w" oend& q, s& S, Q9 Y3 ?
) E% N# V0 m3 G/ t
to get-global-proportion. |/ X1 j# J; v' t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). h# ? t$ z1 r1 \7 t, w2 ~7 O
[set global-proportion 0]& ]1 o, y$ ]/ v
[let i 0
& T1 P' u+ j! ]- L' N' rlet sum-money 0+ R. N8 t) @2 S3 J* ]
while[ i < people]2 X) Z) Q, n# O2 G! Z2 D
[
* c) z. a/ w4 W( R6 Z" tif( length (item i0 j* u' m8 |0 U3 d% w/ u
[trade-record-all] of customer) > 3 )9 ^' x4 p* ^5 N2 g( O
[
) F9 w! I1 t2 ~set sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 [- q3 r$ G# i
]
- z, R- q; k* h/ P. o]
0 W9 R3 X' j; H( Hlet j 08 U8 u& ^5 G& i- @7 j+ s9 `( t! W
let note 0' [- X* N+ F. N* K
while[ j < people]9 L! H# F# V! Z# I! a" g7 A
[
9 c; {3 h! C7 R! U' Mif( length (item i/ e# P* ^( Z3 \$ l
[trade-record-all] of customer) > 3 )
: v/ ` s# o; M/ v3 l[/ U* E. l% k( v2 i. ?# u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 a7 \7 G! u$ R0 V8 j' _
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( P- U* Q! b/ i1 K! b" E- V9 g[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* b- ]6 q6 y4 A* P- {) N
]
, |- `; b4 ~% A7 S2 @! D9 g! j1 o]* ?; D7 j: [ c* j. ~- ]0 s
set global-proportion note0 j; Q5 E. Z- R6 l4 ?6 n+ _4 A5 Y# F0 _! L
]
" k3 q* F8 N9 k& cend2 g* s F# H) f9 E1 ?# D- `
5 j/ V% }) E- D8 _5 X6 r( x0 eto do-trade7 s T9 X' n0 a
;;这个过程实际上是给双方作出评价的过程
4 m$ o" ~0 a- u$ ]! M0 S& {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
_# l# g# s1 a, ]' A3 Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 n3 i$ S$ C+ Z6 D" F9 yset trade-record-current lput(timer) trade-record-current
% ~0 {0 |$ x; Z& G8 |1 W;;评价时间& K; q" u8 S6 J
ask myself [
9 S. U3 s3 N- l" X& N5 Wupdate-local-reputation" R! ]+ O8 V* u
set trade-record-current lput([local-reputation] of myself) trade-record-current
' G$ G3 w1 j, Q4 J$ G; ^- \]$ @/ ^" F& R0 z6 y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: L7 W- o. I( R4 K& x+ P;;将此次交易的记录加入到trade-record-one中
, m0 P, n1 f, R: a3 Q" S9 a% Tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
O3 L& G0 G% Wlet note (item 2 trade-record-current )
; S9 v; r- x3 {3 |4 J) Tset trade-record-current8 Y# j% L; a4 ^( U. D4 K
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 f7 s+ X+ {* U( Yset trade-record-current2 h3 I* M# z0 A: A: f: v8 \5 i
(replace-item 3 trade-record-current note)
/ F0 C n% d( R2 y: |& \
# [2 @8 _1 W: G- s2 h. P$ |9 z& S$ A2 d* O, g# u
ask customer [; F8 V2 S2 g# P( H' e# H% J& w
update-local-reputation4 D, y3 A6 {7 ]! o, P
set trade-record-current
9 B; a4 b/ K$ Z) t- E(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ _8 ]' E" _5 b" m( {6 A/ p
]
0 ]! a1 ]4 X* s) n7 I: T$ e4 D9 M k- Z" [0 |! W
; c2 n. `8 |9 sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" D; }; ~" @, T/ Y% J/ P& D
0 z1 h+ c6 q6 i0 I7 p5 n1 O1 qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 `! b2 | K D6 `;;将此次交易的记录加入到customer的trade-record-all中
2 ~1 o7 J& ^ i W8 N0 Eend0 f9 p( U. F( ]- c' |9 k
5 t/ b0 v! H( \! Z/ o
to update-local-reputation
8 Z2 {3 ~: ^& ?8 P2 J9 Kset [trade-record-one-len] of myself length [trade-record-one] of myself
2 m/ \' y6 Y4 N) r, W V6 x- j9 R" ?3 x x0 `% u: P# a
& H& k* _+ d, ?;;if [trade-record-one-len] of myself > 3 3 L" W2 n, ?' _% I
update-neighbor-total. F9 y8 [0 u# Y( n, b7 ` e. }' I2 ~
;;更新邻居节点的数目,在此进行( Y! \8 T: C- D) z: X, M
let i 3) C! L$ b/ ]1 N* G; i2 W: |
let sum-time 00 V- \7 {. L9 }4 ~! z' `7 W
while[i < [trade-record-one-len] of myself]: ^# s" \% n0 L/ O" t6 {3 Q+ V
[ V9 G6 p) q! v* ~$ |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; O" @# A, _1 vset i& r. E A0 p. W0 O1 L+ Z- S
( i + 1)! N1 ~4 {) G' Q, Q; k
]/ _* M2 f% s4 J3 l. Z g( | a" a
let j 3
C. b& p( t4 V6 }let sum-money 0. a7 |3 ]" p- A- d. a( ? Q; Z
while[j < [trade-record-one-len] of myself]3 E; J0 S4 k& k# Y4 ]
[
8 ~% d" G* j! W, u: i0 U4 p) dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)0 \+ `2 {: L A5 G$ j' r+ ]
set j
( Q! v+ k8 R4 {: u: e; Z( j + 1)
: q7 T. U2 K! `: J% ~5 B6 m# i]
/ {& c2 T8 D/ r7 @let k 39 O- D7 a' g8 X$ f( |% S
let power 0
1 w I, p! H& \0 Klet local 0+ b2 |. m7 y5 q# x) D6 T! h
while [k <[trade-record-one-len] of myself]
# M7 U! l- J: O9 Z& J2 r) l[. p9 n" ]9 i/ T* d* }/ w7 T" Y' 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)
1 ]$ m1 m' \4 k: |set k (k + 1)% |" R. E& t& i5 K1 I
]
/ _7 Q9 O% Y! Qset [local-reputation] of myself (local)& _; r) b, ^/ u5 Z( ~: Z4 E" p
end
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to update-neighbor-total
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$ `6 }: I5 y/ m- }if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]% ?. o, V& Q/ G5 b4 {$ _- F
4 N' k E4 Q- \3 _/ ~/ {# J; C6 J7 U. n# U8 Z6 v3 c
end
! m, F9 o# W; p3 e9 h( V
- ]% E. v$ @% ^: Vto update-credibility-ijl % U3 {3 f: n0 s; k( K
: K1 [" v" X3 R1 P' @
;;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。
% G7 c6 C0 b8 {6 J5 a# @7 V7 plet l 0* k3 b: z' n7 E
while[ l < people ]
$ V, P: }: s) M: ^;;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1 S, p: [2 a R* l" R9 G
[
! {% e9 ]2 l0 ]0 Elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 ]8 ?& x. t% u7 ?7 ^$ H5 z9 aif (trade-record-one-j-l-len > 3)
) M, q$ P6 r; B. P: m. W! i# C7 G[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
( M9 Z) ~7 l, L% Plet i 3
8 k% F- m( {0 H9 m! k, p' S) blet sum-time 0' m+ K# W' K* \! I6 o2 s
while[i < trade-record-one-len]
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; a. v! ^0 d! Z) A. d. mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
N1 D5 P. \2 `. {5 bset i
A) B8 ], ~( c0 x" R* {4 \( i + 1)
5 G7 ~' U5 k5 o8 f5 z1 x+ ~]
. a, p! w% ^! w) t, ?: F) dlet credibility-i-j-l 03 _0 D6 S- }* L8 |9 L5 M
;;i评价(j对jl的评价)
/ \9 R9 a1 _3 }2 I8 L+ wlet j 37 U5 Q5 {) W" H* Q
let k 4! O* N! Q& B6 C1 E( ?
while[j < trade-record-one-len]( P$ S8 L! Y- G) ^5 @
[
, \+ b( q! d7 H5 r7 q }' Iwhile [((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7 c! p: @# R1 x) X
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)
* p# e+ y" n! }7 t7 Q0 ]set j
8 {0 E0 O, N5 o9 }' P( j + 1)+ z K$ x" `; {3 r
]
! ]6 G1 L+ |/ _; W( a. Z' @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 ))
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: y7 H2 [/ P7 `1 Z* O5 ~, Hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 S# {. w- X( @5 b( H. \;;及时更新i对l的评价质量的评价
3 g4 n/ Y! ]: O$ sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 T7 B6 A& h! C( |0 P) @1 d' ?set l (l + 1)
+ F+ h1 H. T7 {% F- P! Z, t, y. n]! }9 Y* }, ~* n+ d( \# B( q2 z
end# W0 Y0 g; Z0 d6 e5 D7 E: |: f
$ U: ?4 i/ g; L
to update-credibility-list
( c7 V. B* y! n# M }; {& Alet i 01 l* f; C; j9 Z: j& J6 t
while[i < people]3 Q i2 D& P' K7 s; ^
[
9 [8 g- e2 N1 o( g0 g1 Plet j 0
2 E! f* @) v' x' }! {& Nlet note 0, u! X _' t) l' f- K! D$ e2 g
let k 0; Y h) z. ]' c2 ]( D# `3 |: x
;;计作出过评价的邻居节点的数目# x% | p0 Y2 Y, g3 ]1 o+ R L# n
while[j < people]
9 w6 h9 C( y0 A8 M( P[ u- Z- w" \! M3 d
if (item j( [credibility] of turtle (i + 1)) != -1)- |( i' Y( @2 ~0 R) \' t( `
;;判断是否给本turtle的评价质量做出过评价的节点 u. I+ e9 F, }% o& g. s
[set note (note + item j ([credibility]of turtle (i + 1)))$ {9 y: a( @ B4 P% }! x3 h8 f7 T
;;*(exp (-(people - 2)))/(people - 2))]# ~9 N. l; ^1 \" ]% A
set k (k + 1)
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set j (j + 1)0 d( D) s1 z, z" A, d: ^- H/ O0 T
]- J7 M2 o; v/ L7 {+ X+ E3 }
set note (note *(exp (- (1 / k)))/ k)" D9 L1 Z( e# d, O0 j$ x
set credibility-list (replace-item i credibility-list note)
* r7 [: k7 e3 Zset i (i + 1)
# k, y+ ]" a0 e7 j$ ~4 x]1 g4 ~+ K% G3 _4 B/ t* c, |% L; V, m
end% W) Q7 X' E' F5 ~ k5 s3 s
- [) o! W' p' Q7 [0 R2 X$ q* tto update-global-reputation-list
* W. n# W) m9 H' clet j 0
: W5 t% V, J; ? v5 S1 Q ?8 x( qwhile[j < people]
4 q5 y. y/ `# p( X[
6 Q$ L3 _3 N8 A- j3 blet new 0# k8 i2 I7 [. q3 b7 g. _6 X2 u
;;暂存新的一个全局声誉
( o+ g2 J# c8 C# F6 s/ E4 Y2 v% Llet i 0) I; @8 p: ]- ~
let sum-money 0
; J' _( a' k: A0 M H, [! tlet credibility-money 02 z/ m: k# C9 B. a" j
while [i < people]# R. p1 y: W- Q
[
( E ]3 J& E6 q! b: o! mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 g% y5 Q. T) b# x6 ~6 R0 ~! pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- g9 v" q% w/ |( O$ z2 x; t4 q
set i (i + 1)
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8 T2 N: |0 ^) U3 b8 T" ^3 M% @let k 0
1 a; G1 {, Q6 z! J! N( O* e1 |let new1 0
3 ^! ^$ k3 y' M) }while [k < people]
! ~/ B" N. a. t4 g& x3 y" E[
3 b9 C3 F, v! q. p4 |5 vset 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 r2 z1 x/ B/ x' U
set k (k + 1)
/ b' ]6 d- e+ D9 E]
8 m6 ]1 Y X& J9 qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 F, ^* @2 u& |' x9 B
set global-reputation-list (replace-item j global-reputation-list new)
, W6 `) X, B5 X) Z' mset j (j + 1)0 O$ i, ]0 h3 X
]3 }, n, r! {5 M9 s3 i2 ~
end
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5 V/ f# R+ q: Z* X) \
: B7 f& H5 ?6 Bto get-color! _, o+ R9 X/ _0 H N# G, u" y$ ^
( P5 x$ V' q. w. s+ I' h" u2 ^set color blue
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5 t3 ?. T+ E3 P! _+ \4 C# oto poll-class4 q8 ?! `7 z& i4 q2 m
end& i. F% P. Y$ x! M% _) S/ w- S
/ r1 N% w0 \- Nto setup-plot1. b- A/ o4 y: W
6 I- |1 H+ q/ b" U: K Oset-current-plot "Trends-of-Local-reputation"( L- I1 F4 {. m* y5 ]
, i$ t% Z! U' F/ h
set-plot-x-range 0 xmax
* G6 S q! R5 c
; d4 I' e7 b6 ^5 a3 `set-plot-y-range 0.0 ymax
# q# `3 ~) [/ ]8 i+ f' oend
9 [: U* l* b4 d( x$ L& H9 `6 m
% ~/ ?' V+ s7 c7 Z4 [* gto setup-plot2
$ Q9 E& u% @/ D/ C- [ K1 C1 h& `9 D+ U% { L8 B$ ]
set-current-plot "Trends-of-global-reputation"' u9 m0 o+ y. ?& J1 W
4 U4 p2 `9 _- W# o5 y5 J/ V5 j
set-plot-x-range 0 xmax
8 m) f9 o$ q6 h1 ?% K" P6 U& q3 F) }/ G* e' _# N$ [; @
set-plot-y-range 0.0 ymax, w# n2 U9 d. X" i
end" N! j! _! G% S- T& K R/ E& s
8 L! ^6 P, X/ }1 Cto setup-plot3
$ h- d- h' J' ~& r( R% X/ V& ?. I- ~7 \: E% Z- z- y6 A+ J) U
set-current-plot "Trends-of-credibility". {: M; u* V# w X% d2 C/ t1 A
9 V3 g5 l$ I8 {
set-plot-x-range 0 xmax
! {7 \$ a/ {3 z, {" @
+ R! A7 i# K& i/ ~set-plot-y-range 0.0 ymax
2 X+ x T% x! A7 pend
/ X K1 H7 C8 x& B! `
, o6 D5 x0 U$ X% _5 c* B' P7 Wto do-plots) x" O3 i: K+ b9 W$ ?8 H
set-current-plot "Trends-of-Local-reputation"
Y, J" H% }; |7 E R( qset-current-plot-pen "Honest service"! V8 s, O& c7 x- \: F
end$ C- d; K, `9 }% L; u: Y5 w* X) R
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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