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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. G$ Y6 M& p, j$ J
globals[/ A/ H' \) W! n+ H6 z/ ~
xmax$ c" w& ?2 D8 c5 U
ymax$ Z- `, Q. W7 ~: x1 ^9 T6 c
global-reputation-list
2 G1 a2 w* b! z: t4 a Q0 T5 h+ z6 \; a" U" O/ c
;;每一个turtle的全局声誉都存在此LIST中' [& q4 S8 `1 F4 T2 \* _ { Q
credibility-list- T4 f) N! }! F4 f- h
;;每一个turtle的评价可信度$ Y5 g8 Y2 V% D4 }! y/ ]" z3 y
honest-service$ u7 N/ g% o. I! y) \9 R
unhonest-service! y/ F1 Y$ ~5 M/ @
oscillation
# @& T+ D+ k; X0 Xrand-dynamic
' ?5 j% A. c( B* Q R]
8 ~/ l* Z) O& X- N
# c0 Z4 J+ A& I9 wturtles-own[" L4 B4 U& `* k( D. F* `
trade-record-all
2 l; R& n& J6 [8 c;;a list of lists,由trade-record-one组成
8 _& B- N" r2 P+ g2 Mtrade-record-one
7 ]0 k1 d1 n; l, d;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录6 @1 } {0 G7 L
. y0 c5 I$ w% e9 p' b;;[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]]
$ m- J+ y! W) @0 o( c2 _) Ktrade-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]
# D4 @4 I/ Z7 C. [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
A- R( e+ z1 L: _6 T* R' a' Cneighbor-total- V7 ?- T. g8 y6 q3 w5 I
;;记录该turtle的邻居节点的数目) H. f3 g8 U, ^+ q& [: f
trade-time
/ u; w9 z; F# y) E. Y' M0 G. ^;;当前发生交易的turtle的交易时间
7 N# T# p: h* E7 Mappraise-give
$ x# B% {% ]$ V3 b; O6 R d" F/ F;;当前发生交易时给出的评价0 s; G1 l( J; U
appraise-receive+ t! F5 |$ H, G/ P5 x7 y
;;当前发生交易时收到的评价& k* T: e( L$ r9 {# S' m, ^
appraise-time
9 A y+ ^/ a8 u, h& w;;当前发生交易时的评价时间
7 g+ ]7 D, m1 {) {0 v5 i* qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" f. ]# n$ x* r0 C1 A' w& o- itrade-times-total
/ B b! a& ?( u+ G;;与当前turtle的交易总次数
2 }0 x2 g& V; M' Mtrade-money-total" v) N. B9 a5 h
;;与当前turtle的交易总金额0 J0 M2 v+ L/ m$ z9 h
local-reputation, b* w6 |, `' C6 }( Y# }. L7 `
global-reputation5 K: f# N( h1 }6 T
credibility
2 J. X w# l8 s/ K* B;;评价可信度,每次交易后都需要更新
8 {% x8 k/ t4 [$ v, O9 acredibility-all
+ _2 z! y" ?6 B* X* J;;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! e' L# Z* R1 |" T' L
" S) r1 l5 `% M;;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* _) |+ X, c3 S. ]
credibility-one
6 f+ J# ~1 R/ w. |' p;;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
1 j1 U6 i% V4 Z( b# s$ _! C4 \global-proportion
3 s" U; a7 x1 h) i! kcustomer; ]& ?- T, U- e7 Z0 Z; D1 ^% Y
customer-no5 v" Y% v# l# V( Q J
trust-ok9 O) s# q5 A1 {" D# O8 ]( F: R
trade-record-one-len;;trade-record-one的长度4 l* T9 P. W( C1 J0 u4 g
]8 Y+ U. L3 Z) V
5 B. j# s0 G# N. T) g$ U
;;setup procedure8 M8 R4 j2 `! n9 }: V) ^
8 L3 o$ O" N. x
to setup
5 a; s" L: t( f" T" P1 g* V8 |6 f2 f# p4 z% \
ca( @" A# P( r$ W0 ~0 |# ]) o
$ W; x: W9 W1 z+ [
initialize-settings
& r2 R" Y, ~" x. a6 ~0 l8 k% e2 S# q% Z! C- J3 N8 P, w
crt people [setup-turtles] I. |5 A# F/ a0 S2 Z2 N
0 t5 f# F. Y8 X/ Y" g: `
reset-timer( N) B* P7 j; h$ D2 _% b( z) I
2 \ b7 u( q9 A9 j
poll-class
- Z. C" E2 ]- A3 }7 ~ d7 x; d3 l$ g3 G0 N# t1 q
setup-plots2 f* C- u7 u* [/ W2 _8 {* p
0 x8 N U6 E* c) \
do-plots
' p0 E0 `$ T5 |6 R8 yend
/ t+ Q3 Z' L" A0 D4 }
- [$ e, [4 a3 E* _( G4 P& Zto initialize-settings
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) G/ D8 a( s2 V( w. ?& h; Y4 jset global-reputation-list [], N4 a5 x9 c1 A' I0 B/ w+ m
' X, I8 s1 {. k3 Q
set credibility-list n-values people [0.5]
- G: V# U. H2 P, F' |
" z J2 ]6 S7 A3 b3 Z, j) v( Dset honest-service 0
& y4 Z' l! D8 @) E! [ E
2 |3 M/ X$ `1 _+ a" S4 yset unhonest-service 0
2 S- C: O8 Y2 |; t4 K
$ x! `/ E$ e. Y5 e$ N9 {set oscillation 0
L2 h+ [0 l: J$ h) @: J1 X! k2 S; F& E5 q6 i1 j4 k. o5 }# n
set rand-dynamic 0
. M/ g" j3 T1 qend
& t" O$ f9 v/ k8 Q) k# X: G$ [3 y+ d6 t' u/ \1 O& w
to setup-turtles ; f, X/ x0 B# `# u4 k2 g) @
set shape "person"6 X! j! l3 T6 l" y/ T( J
setxy random-xcor random-ycor" P% P! I" @4 l1 ^
set trade-record-one [] h" ~& s' {) a$ D# g- q# j2 ?7 x
4 J+ A2 e2 r) ]- e
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 Z$ V g9 u4 c+ V
( Y/ \% `+ d; v: R3 j* F
set trade-record-current [] \" B6 y8 n% i3 Y+ ~$ |" X
set credibility-receive []
$ }! z t5 [9 R7 G5 T* Eset local-reputation 0.5
: E1 Q0 A" a8 e$ u* B4 h$ yset neighbor-total 0
& r6 o9 c, {& Cset trade-times-total 0
1 n' f: J* M4 r0 W! l6 v: [# zset trade-money-total 0
, ?( O/ ^5 k- ^0 T5 vset customer nobody1 p. y7 v) j+ _0 J
set credibility-all n-values people [creat-credibility]
+ A7 T; M+ K, R5 ]2 a% P2 ~set credibility n-values people [-1]! k6 C( ~2 w2 ]7 ~* W3 k! _
get-color' L5 X6 {% j# F) f% Y$ ?. w/ [
' H5 f5 x3 K) ~& y
end+ I1 V1 a; F% q6 |/ s z; k2 z
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to-report creat-credibility
/ E4 K: }( [1 b8 U' v {report n-values people [0.5]. B8 n# r8 s: y+ U8 Y9 z
end
+ C2 o! m* ~! p. ]) ?! v' q; x% k N+ `. }1 E
to setup-plots
0 U; k8 c- Z+ B3 V& g
( @- S3 O- X* iset xmax 303 g/ |3 v8 b, F Q! f4 g6 Y7 i, O
/ J% S. @0 {7 h. Z9 y( P6 f) ]set ymax 1.01 @6 D! F/ `% k$ `! H/ G4 z
% A* e& t" ~' y: b7 ^- M4 i
clear-all-plots
4 t0 M: B! J. b- s
s! B) }6 g+ Z% ?0 n; msetup-plot1
3 c5 \ ]: ?5 y4 q' n2 k) u; X0 y) e* V* L
setup-plot2
. \$ |! d0 u( U$ V0 O! j+ \" L( ?0 f, o
setup-plot3* p2 v z. l7 T5 n& b7 i6 y+ n
end( \4 [" f0 T) _8 Q, w
) A) n% j" m$ k
;;run time procedures
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to go
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ask turtles [do-business]; w1 N/ T3 W6 w# L
end
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! ~$ q( j8 v6 I" q- e0 z- cto do-business , z% A9 e7 u; u* h% i
1 G1 z f- ?8 D5 a- Z8 c
; ^1 r: W! T, \8 ]2 x6 Lrt random 360, W" e+ L! j' c+ }1 M% N+ o0 L9 [/ H
& M* ?/ _/ P# {1 e" H- W3 G
fd 1( V" h7 x3 q3 z" u
7 [6 E' O7 y# [" l8 x" |; {6 z
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself5 o$ j# A) d2 t- v6 d
9 b9 y, ]# o* n5 P. |" Dset [trade-record-one] of self item (([who] of customer) - 1)- m8 `6 @! A) G
[trade-record-all]of self. j z; Y- n8 {$ ^* n6 \
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 R9 k- \' e% x0 N) l# ^9 t
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set [trade-record-one] of customer item (([who] of self) - 1)) p/ ^+ Z% l# M R. R o* v
[trade-record-all]of customer! E) w- P& Y" C
" q! Y% i4 S; m% }set [trade-record-one-len] of self length [trade-record-one] of self9 `. ~1 G7 H6 n* T( E; A$ s/ w
9 t$ d5 N- c8 N, b! x) k- C. ]" o0 Qset trade-record-current( list (timer) (random money-upper-limit))
M5 W, B- @8 `* V6 L/ N7 ]
; G, U$ S0 F' k% hask self [do-trust]
( h' s, o7 P* h: ]" M;;先求i对j的信任度6 e% s0 g; k2 k* U8 X$ N: t( ^
+ w7 z( v, }/ A {7 G
if ([trust-ok] of self)
( w4 t# S' a9 f& ^' b;;根据i对j的信任度来决定是否与j进行交易[9 t* f( a7 x/ ]1 g3 J N. O
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 ~4 w, A- W1 Y: s S
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8 e8 p+ B4 h; ^0 T. W; Ydo-trade
. A0 Y; t( X3 t* b
: ]+ Q0 h) I, wupdate-credibility-ijl
: r- k$ y! ^8 ^$ H
; Q$ a# l( Z4 [3 k- Kupdate-credibility-list
& r6 U$ J8 u1 Q5 k
6 A' N7 u/ r- ^8 M5 n( g
, X9 D" s' ?- _. qupdate-global-reputation-list
Q6 G) }4 r& g3 n! c1 n2 l) F7 ?( a& W2 @9 c2 ?. n. D
poll-class0 r, T2 V8 P! u
6 s. i" f2 l( v+ Xget-color) s# O! n2 [5 j5 l0 d# }( t
) o9 {# d0 f* e. E
]]
- v0 V4 q8 j# y- D0 a& r1 W. v: j6 K: f& [
;;如果所得的信任度满足条件,则进行交易1 M; t& v$ J$ A+ o8 z$ q
$ R9 K; P2 M) n w3 h/ \[
3 p, d! l5 D$ @, u
5 O @3 O$ R: ^0 w Wrt random 360
- ~# l( S' o. t4 w( C. Z ?4 H ~
7 c9 o! s& p, p9 h% ?( X. ]fd 1( T7 M# F+ h1 t5 I" v$ A: d* T
6 D! h$ K7 E$ H1 F
]% q* o: c( W1 l% \; k3 }
% t. z% a9 d& y3 g. [. m
end- D& D" I. {5 P' K( [
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to do-trust ) r- k$ U/ d5 l; n {. Z( ~
set trust-ok False
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let max-trade-times 0. a# |" \4 v( C9 ?; j5 M/ h9 g8 D( k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 [. G6 h* U" w( n
let max-trade-money 0/ G' Y4 w8 x ]1 C
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& a/ M% @& ?" Elet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 I# |# d: r, }3 ?( g. F
3 h3 P4 K9 T: b! o/ H
. n) j7 Y9 ^4 A* Q! O; ?get-global-proportion
/ J; x, S3 b* U# r5 [let trust-value0 A2 X* {& S' l
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)# U1 u+ B3 L; E, p' m" _
if(trust-value > trade-trust-value)7 n, h, R( C4 _
[set trust-ok true]
( Y( J+ F: X! k v0 q$ Dend
. A4 V% `0 B) R
' o; D1 x) J% F$ fto get-global-proportion7 r L& |% d& F6 r; E
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 z! M& ^) y9 a5 T8 }& v
[set global-proportion 0]# v5 w1 J, C& O! s
[let i 0
6 ]) u# ~9 z6 P+ o5 ]+ j( C# F3 f+ zlet sum-money 0
! v* j1 ?% ?! wwhile[ i < people]
& S) s9 w" J/ G; M( U/ i5 a[# h/ s- B5 w, ?$ U/ `6 O8 ^' \- f6 A
if( length (item i# [' |+ h) k+ O0 u" O& Q9 h. R0 v
[trade-record-all] of customer) > 3 )
3 H% P. j9 d+ C7 F[4 p$ n) p& K4 m+ U! }/ G2 o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 `. t+ f8 T: N' Q1 v
]
7 i! \* `1 `, ]4 ^8 N( E( X]
0 s( Z' t8 M9 H( j& Hlet j 0
7 e$ _& S, Y4 z3 klet note 0
- i+ P3 t1 Y% s3 Owhile[ j < people]
& h/ P/ t# y: N7 O[. R* O; { I& H3 V1 ~
if( length (item i
0 |+ Z- I6 i! w9 a7 B$ y, b[trade-record-all] of customer) > 3 )
+ Y" F% O! G# U( V$ I[
7 T) V5 l b3 ^/ \4 `9 [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! k; ~- `1 m4 ~ W9 q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 g5 T; m9 e- U9 S
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 L7 G' V8 R b+ r5 r( e% s* O) W$ l]) V$ y4 _5 B' N' X! ?& k# J
]
0 D: c9 k+ X4 jset global-proportion note" ~" I' z) r( o) t) J
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end1 L* n& F( V1 O8 J3 x' F
2 B; g- J9 e# p" gto do-trade
8 |. q+ i. h/ M7 D0 I" q;;这个过程实际上是给双方作出评价的过程
( r( F; ?! z2 L1 lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" t# ~0 G0 Y- ~" `- e+ ?: S6 n" B
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 j/ b7 j* H1 c( O& E2 x* [ oset trade-record-current lput(timer) trade-record-current
' b; [2 y" q+ k" W;;评价时间! k/ \; J- d# E; e4 w$ w
ask myself [" a# v- j# }# [$ f) p
update-local-reputation
' I5 l6 W: C X8 J8 [& [- xset trade-record-current lput([local-reputation] of myself) trade-record-current
/ ]: r# v2 c& E5 ?1 G# z) b% h]' m. V& b; x- ^7 h: M* q" Z, m, `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 C3 q6 Z! r2 k; K! d, s/ D! l' w;;将此次交易的记录加入到trade-record-one中: \/ m8 r& \: @$ t+ ?% W
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) e! k9 v- O" p: A7 Q
let note (item 2 trade-record-current )" Z2 C1 g. I! @3 D3 A$ A! a" l
set trade-record-current4 I! m) r! v) ]5 P- W! l; b
(replace-item 2 trade-record-current (item 3 trade-record-current))
1 g' q# E9 {+ r% aset trade-record-current% V, B h ^0 a' Y2 _
(replace-item 3 trade-record-current note)4 \7 _% @# c$ J" m. q. C7 q0 I' A
8 H$ D w2 G; q9 n" n8 j
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ask customer [5 z* j* n8 e0 z {
update-local-reputation4 _* X3 p% z! K8 e& N" e4 Y
set trade-record-current$ o2 ]2 n9 f O4 Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - t1 \! {5 j9 D0 o+ ]' c0 m
]
* R+ q. Z* p5 m% |0 M$ F8 Z7 B: d% G6 M* i3 O6 V$ P: D( X
$ j8 V; \4 X. \# _4 ]0 i5 Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) S& x C$ p$ t7 k7 C: k* J4 P; p6 X1 j4 f$ y- F% e- i
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 G+ v( n5 L, e. e e1 \ q
;;将此次交易的记录加入到customer的trade-record-all中
* c" P1 y* M+ }end
' s, ^; Q! o& K# C- q! [
: p1 {. s. u! |' t _; cto update-local-reputation5 X$ D" `& x/ Z# ^) \$ O5 `
set [trade-record-one-len] of myself length [trade-record-one] of myself
& @) R$ i/ u' v. A/ u6 F1 ^6 j4 j& C, |, o+ h+ r3 Q
; L8 J( |+ t3 \; {# K7 M& T;;if [trade-record-one-len] of myself > 3 6 Z& G* k, W$ @9 I8 r. f8 ?
update-neighbor-total" i9 L! \" D. D1 G) ^
;;更新邻居节点的数目,在此进行
- N1 z$ W) _3 y4 H! D7 L! Clet i 3
! h+ ?& p3 r4 y4 tlet sum-time 0% K+ H$ ?6 \# X! x. X6 t
while[i < [trade-record-one-len] of myself]
+ e* Y9 p. o# {+ b[6 [" p( a5 B- a* p
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
n% M0 ?% G- U! L; fset i
+ V* i7 P% H4 l" l# k( i + 1); u; k6 Y: V- T- w! T: e6 J
]
) x9 [5 z8 j$ T; Plet j 3
6 t2 H$ P3 I9 o t9 Zlet sum-money 0
3 K/ e, z- O: p7 j8 o* @1 Z5 Jwhile[j < [trade-record-one-len] of myself]) U: T, |! c6 a2 I$ H
[. k! `; h/ V& m) h: r/ ~
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)
# v0 y* N5 I5 W+ Gset j
7 c. S5 u+ c# A. U! Y( j + 1)
* A1 O& P8 [( s. M6 o+ i: @$ W9 |]
* R8 V) W+ ?7 L) {- q+ Q% Ilet k 3* `8 r& r# @6 L n
let power 0
) q0 _; X4 X( [7 f& klet local 0
) H, k' `' }" e4 }" s0 N; {while [k <[trade-record-one-len] of myself]* O1 l! ?% y/ q m3 s1 @
[' U: P0 \1 S* e) E' d
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)
( q! F) }; C! p, Nset k (k + 1)5 x) _2 A: C: i
]
# f/ g& C# {# U1 ~" |3 q* [( kset [local-reputation] of myself (local)
- r) F% F; D$ Q3 D# Cend* B) j Y P9 ]! o* D
) ^( {8 S$ d0 q( c* u+ }
to update-neighbor-total
) s. F: M. n* j ]7 t, ^3 d1 `7 ]& D
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& |- Y5 ]! n. r0 O* C8 ?( _
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end
8 {* J% b- W: d9 J/ w3 d/ O% i+ ~2 Z- c
to update-credibility-ijl
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;;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。
( E: q; d; c* i9 ]& |5 Slet l 00 J$ |' H: b* K' ?9 A
while[ l < people ]
$ k% X" p; M- q' z: B& `( \% o/ Z;;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 u) v1 E8 q4 X; l+ k8 J( v$ K! k8 S[' ^$ `9 h4 t+ m* `4 T" f
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ p) G2 h* m# _$ y3 y9 Iif (trade-record-one-j-l-len > 3)5 k$ f J* D( [ E
[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
2 g L2 x# j% clet i 3
3 H" g1 g9 ]* _let sum-time 0
/ v* x% F# y' n! }% U4 a" P6 j( ?while[i < trade-record-one-len]
z7 F& h; w) K1 w0 V( x% a: p[
2 E9 g* L# X8 n5 Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; Y6 y" s, p0 ~% X. c; Xset i8 [$ X! e7 T9 E; h" X
( i + 1)+ \- o4 f. b; ~' g# y6 Z+ S4 j8 C
]
4 C- W" u/ A$ S6 D wlet credibility-i-j-l 0 Y: W4 u. I. ]+ }+ J) o
;;i评价(j对jl的评价)
, p7 w" Z: l1 zlet j 3* R# J o. o; v8 S, P6 M
let k 48 @* a7 g i9 Y$ k/ \8 h0 s& {, Z
while[j < trade-record-one-len]9 A/ V4 Y- T- T# w& f
[
0 z+ _ V" r7 L) V, l( J5 wwhile [((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# r+ T7 J; \8 L$ s; c* C
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)$ l# K' W( v q. X1 ~
set j# t9 C) c* A, N
( j + 1)
1 D- A0 S5 T! p8 f] i$ o8 ~9 p. g! K
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 ))# _: N6 v2 e( H. L7 Q
% ]9 r, X+ `, k7 b6 k7 z# I& x6 e. R6 o) K6 T2 Z
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ R( D4 A& r: k+ T+ o6 P& Y; G;;及时更新i对l的评价质量的评价
2 w6 V/ T. m( Q/ Y% v o8 |set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 C9 M1 g* C) i# s9 r* U
set l (l + 1)! Z- e" ]0 C7 W" Z' j' i. }
]
# S2 y9 P# v( D& c' D# nend+ J" B% t4 K5 y& m8 X( b2 r- U
+ V8 Z- F: i; T6 P0 d% ^+ d# W* X: D$ b
to update-credibility-list
- {4 R1 `' L& p: i* t! plet i 0
4 ?9 J0 v; x/ m5 M* K: v& x4 r0 N* dwhile[i < people]
; R& J& O, i B6 R9 H& [[
' N1 O6 @% {9 E, L* \/ [" q" o/ Nlet j 0
; {7 g& I4 Q- U& zlet note 0 ]/ y. z! Y0 @
let k 0
/ a( P0 f- d2 M;;计作出过评价的邻居节点的数目: x! S* ~7 Z8 F* L8 k
while[j < people]6 ]$ L+ Q* T0 A, g+ Q
[+ H( t, _3 ]' U/ ?$ G
if (item j( [credibility] of turtle (i + 1)) != -1)
" r7 ]( _- f5 i' }& D;;判断是否给本turtle的评价质量做出过评价的节点
/ y$ o- O: N2 [+ U6 Q[set note (note + item j ([credibility]of turtle (i + 1)))+ e* y* B( U/ I0 |& L, z7 x5 T
;;*(exp (-(people - 2)))/(people - 2))]
5 t! e( V4 F3 K7 p: Sset k (k + 1)6 m6 Q1 ]4 c4 w9 S
]
# M% N3 J3 i6 k' lset j (j + 1)) C! k) D( c8 ~1 n% o e- F
]4 d/ K+ c# @8 z6 u7 m3 V
set note (note *(exp (- (1 / k)))/ k)6 L5 j; {0 A8 `: R# H
set credibility-list (replace-item i credibility-list note)% L" q a3 d- z* ^4 o/ l" e
set i (i + 1)
( K5 c7 p: q9 A- A$ K$ F# R& M]; {8 d9 M5 ~3 F7 C; X d# h2 S
end
1 V3 _. w7 y |3 K) F/ `: C9 H" w3 o6 s4 O v7 b
to update-global-reputation-list9 s, y5 n+ M' v n: M$ P0 C7 ?
let j 0; m: f5 E. i. N# G7 z
while[j < people]
8 J/ ~( ?3 F- P ][
_ x: j: O! h6 e/ Ylet new 0! E9 V. X, X9 R) R/ l6 G
;;暂存新的一个全局声誉& N5 b* D4 H3 C# X# g) v. e$ v
let i 0# O5 m7 V- K: Q0 C% Q
let sum-money 0
, _4 M( c# K$ l; O: ^: D. H. p" olet credibility-money 0. D6 y# ]! i! O
while [i < people]8 N% r! E7 Y! f9 r: S
[
p& t8 P) o& [8 D! Qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 V$ `( w1 i6 g. rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% T& Y' L* j5 H8 K3 o' [9 W" V7 Jset i (i + 1)
. A9 i- G1 e; q0 E]1 I: ~/ v& D8 C' a
let k 09 A+ k& S' v9 V5 I- d& ^
let new1 0
- U5 `; X/ i0 R. Cwhile [k < people]8 _7 w& H' l5 P; \! I6 R9 A
[( V1 c2 T7 `' n/ C: }9 n& b5 q
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)' L& E. ?6 L! u+ k N! ?5 a$ y
set k (k + 1)3 E' v" l( a5 ?- H( k
]' B$ x3 Y7 O1 S. A4 N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" l! Y p; ~5 L. ]6 H; ~ W5 `+ {set global-reputation-list (replace-item j global-reputation-list new)
; t+ J9 R- Q- s7 W f% r5 v3 kset j (j + 1)& _/ j0 I; b. K# ?# H- R
]
% T1 {* |1 N. h- r/ i* x8 Vend
# }9 `, [ n% J ?/ t3 N: y$ _+ m/ b5 \) H! f1 J% r
, Z" B! ]: j2 b6 X* z
9 @$ b; l, E2 S# j# vto get-color
+ [3 L+ t, a) b7 L- A8 O4 c
3 W" d* p. c1 _& F b& dset color blue1 b+ M" O: Y8 a5 b2 g. |' f
end- b3 Y" F7 v. n4 t- E7 \
8 _( [* H: L( }% @6 B! h. Oto poll-class, |% A, ]- l3 f8 p% k
end
5 w8 R7 K: J9 i3 |! W! X) O; c' T2 d3 J ~" Y, D, @
to setup-plot1
) Q' I3 [3 Z$ [: O2 Z: M+ s- e3 J3 q) R
set-current-plot "Trends-of-Local-reputation"
p( E# {+ Y7 P) r: ~" o8 |
! z! `- ]% z4 I! |6 l$ Y# qset-plot-x-range 0 xmax
6 h3 F& a& s6 C- N4 v$ A* P# ]- H# y" O0 m* H1 i5 u
set-plot-y-range 0.0 ymax# j* ~5 ~$ |' W) x" T3 L
end g. D% y, n/ R5 B% A# i; ~; r- P
9 p! ~3 v" d4 T2 v" jto setup-plot2
# n6 a* y& s, ^% ~! {
* d- [4 ?6 v+ V! Pset-current-plot "Trends-of-global-reputation"
7 s2 n- F4 o- H
4 a: e% ~9 u* m- s/ Sset-plot-x-range 0 xmax. O) l" q& b* w. X
( w3 l0 }! [: _* I1 lset-plot-y-range 0.0 ymax5 U. y! q/ Z8 w' H* ], f- E2 e
end4 L' X' i5 }) H, @2 Q
! o c" E! [0 a5 k, K2 C$ nto setup-plot3
3 c% x; @' C/ l/ P" ~, V- X! ?
: F9 I4 q: `& [7 k9 J0 i6 \& Vset-current-plot "Trends-of-credibility"5 x4 t, S- Y1 z5 w- Z: _4 Z
6 W( V& H& d" `+ H, _
set-plot-x-range 0 xmax7 v9 b- p! \ D- V/ I
# J: k5 ]/ y) ~/ `1 oset-plot-y-range 0.0 ymax
# ]. O3 q* }# ?) O' Z4 vend8 k6 }, K1 @0 X8 M4 s8 u5 q+ u
$ K9 C$ P( D/ }# y! Kto do-plots
/ \$ Z' X6 U6 o' P% y' pset-current-plot "Trends-of-Local-reputation"
! ~$ `6 w, m1 kset-current-plot-pen "Honest service"
+ _% H" r# F+ u* {end
0 v$ d3 y4 n6 o6 {: q- K3 F2 ~$ U2 b# Q7 E; R& g* e) D: T7 ~) ]
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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