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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
: [ f3 `/ X+ N# V, n4 Gglobals[: k1 m$ T, l+ r
xmax) V6 j+ _( S( {
ymax/ N' [9 P2 P, ]+ R- j
global-reputation-list
& Q6 S* Q3 C3 F6 k* p h& s
5 i! k+ y1 W8 s- @5 F' K;;每一个turtle的全局声誉都存在此LIST中
/ j3 V' i- t' f6 ] N& ocredibility-list( ^2 F3 t5 t2 E) j. `; g- z L
;;每一个turtle的评价可信度* F' }" e* ?) N
honest-service; ], u$ I4 [/ R" N6 l$ `
unhonest-service
+ M2 u* u, \# i4 Joscillation
% |4 d C! O1 [; drand-dynamic' F" F" b0 R- _6 A
]5 I' U7 M4 h9 |
9 H |: Q2 ^4 k; dturtles-own[. |; R6 c' ~$ |' C* c: r
trade-record-all$ d. W: U3 v* C1 e
;;a list of lists,由trade-record-one组成
; v5 o! M9 Q: @3 B8 T- t4 Gtrade-record-one* `* r" m& F6 d7 l
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ O) D4 m4 P/ A7 a% u
/ x: m& Q9 u( {" P;;[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]]$ u: p+ e a, V& z
trade-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]- D, t: e" d' o7 w# g7 b
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+ V2 O& p9 A" R2 O
neighbor-total
3 @& P1 r2 p5 x+ T$ r, Y;;记录该turtle的邻居节点的数目$ w, e' S8 s6 y, ^0 ^" k) `* J
trade-time* u/ ~7 @4 n2 O, Z
;;当前发生交易的turtle的交易时间
N* O: K& B& y" D$ sappraise-give4 M! i+ x7 X9 P% r( l# }& [* Y, ?
;;当前发生交易时给出的评价
2 i) G6 }7 V/ @" o0 j8 I9 Bappraise-receive; d7 o, p6 n0 p( c! f0 }7 K
;;当前发生交易时收到的评价6 `5 o9 Y: q1 I1 A# Z
appraise-time( g, r3 h% w3 q3 q6 }; I( s! U
;;当前发生交易时的评价时间3 e7 D" c3 [3 c0 ~! Q# k/ R. Y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉# d$ x, w( S) p* l4 f8 C; \
trade-times-total
0 S) w) Q- x7 y4 C$ i6 D( H;;与当前turtle的交易总次数9 ^4 c8 G& {! f! x Y) G( V
trade-money-total
* y6 [8 o& O5 w6 Y+ s;;与当前turtle的交易总金额
# k$ s/ x O2 \4 Ilocal-reputation
3 }8 d! N; \9 F3 S' Iglobal-reputation/ o. V R U8 l/ {' Y
credibility
- X. m7 Y. y& j" g2 R6 };;评价可信度,每次交易后都需要更新
# t, ]0 n* U6 j) H. Zcredibility-all
( k( M: s% ^" A1 {2 S M5 h;;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. r( v4 i) T/ ^! d7 w, L1 P" `8 \
: \( m6 M5 V S0 B& };;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, r! r q) g& z
credibility-one M: c/ S& Z& b! m x
;;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
, n& E8 }3 c( g% iglobal-proportion5 s1 M! E& J$ G& t, f( m4 _# k2 \
customer) R* D! Y% W% X0 v- S9 ~
customer-no: E9 B* l3 F% c6 K) M7 f4 l3 U
trust-ok; P2 V8 o- e- P) o9 ?& M y
trade-record-one-len;;trade-record-one的长度, S/ o& H1 J" X; @1 a( n- }/ i$ ~
]. t8 b& V1 b) S3 n1 [3 @3 S% ^
! H" X+ d X$ L9 K;;setup procedure
# w: Y* I/ m- g6 [& r+ g, c* L2 R0 Z6 v b& I" t' e
to setup- L- E' \' o/ V6 c6 ~" c
, k# R/ i( f0 x& X! r* Kca
% I9 I- I- g5 n# p8 h7 D' ? g' R* O" w$ M5 L' ]
initialize-settings
/ e! x3 g) a! w; F7 b4 z2 J5 a& o* Y
crt people [setup-turtles]1 j3 x1 S& [, t5 T( }4 i
5 K6 { P m3 X) m# |, `+ {! R6 \
reset-timer
2 D# `7 {" B6 N& T
4 f4 k& b' w3 N, E' j5 X9 y( xpoll-class
H9 M, I2 S) |6 e( U: R
( n: X, v9 Q2 ^4 W& Esetup-plots
8 \. O/ |: p, j% z$ z
( I8 Q* ~ Z' c$ B/ @do-plots
9 G4 f2 C8 P( q- O* k" dend
) V3 H: l' u! S+ G' q% K2 R$ y" I
to initialize-settings+ v- Y1 A. P3 C/ L$ X* ]
# d+ F' p- Q8 }set global-reputation-list []5 ]2 n7 n- a3 C0 m6 F, i' B9 }0 P+ X
! Z4 J& Q2 C/ w5 r. L* A4 _
set credibility-list n-values people [0.5]
8 Z5 ]! k2 I7 w/ ]5 |: b* [5 d( R$ V9 P& h6 B
set honest-service 0
! ~2 Y; t2 i, M. B3 _5 \ Y: s* P4 c+ x6 M0 U6 [- L/ c/ ?
set unhonest-service 0( q1 f% s5 m4 m% P0 {
6 S/ o! k4 Y7 D) ?. F7 s/ F
set oscillation 0
$ W3 `0 \& R7 x/ Y }0 B) N; Y3 {) Q: H8 c; M z
set rand-dynamic 0
, E5 I& J9 S3 t* h7 t5 xend
2 [3 Z4 w" C1 w( S; p3 ]: X) t5 y' q2 g
to setup-turtles
3 Z& x1 Z' U# p9 L! vset shape "person"3 v, |$ V z# n, k4 j! q
setxy random-xcor random-ycor( N9 B" }1 e# o$ k3 O: Z( I5 o
set trade-record-one []
- a% y$ E& E, c: f/ V0 d, v$ q/ X
7 ^4 M1 y4 G2 P, y1 T8 J, Kset trade-record-all n-values people [(list (? + 1) 0 0)]
, F1 Z, v' k+ e- T3 u
% d/ K* F+ I) R; }# Z; iset trade-record-current []
. \" y% f8 x. A; Q! ~2 }set credibility-receive []7 ^1 w! C6 o# z; J. h) J) D8 y+ x7 ?
set local-reputation 0.5! a. V# a4 q/ { p
set neighbor-total 0' L* L. I8 }( h
set trade-times-total 0* q. `) n; o/ T( W: D
set trade-money-total 00 d7 n% s; x8 N' n# p; N
set customer nobody
$ M3 k: F4 ^) I. j( V ]$ m* Sset credibility-all n-values people [creat-credibility]6 t3 B: G) _8 o/ X8 A, L8 e2 v# B
set credibility n-values people [-1]
1 z: U- ^$ i+ U U9 P+ [% mget-color
9 ~; v+ f: w1 X5 X m7 F7 R; ]7 d* [" h7 e$ j
end
6 T- R+ U: |3 l2 u' B& y/ d
& p. h$ S' G: o* W0 G+ T2 f6 @$ vto-report creat-credibility3 E2 G# {* w+ d5 Y, t
report n-values people [0.5]; w: f1 `9 Y. Q1 y+ a
end
7 `, R) n4 B* g, T
! C# Z" \5 x, B$ |* y6 Xto setup-plots6 O1 o8 C$ r* J. b
$ u6 S( l, B0 a5 [set xmax 304 S$ o: M% u( O* n
: ^% o6 V" \3 {$ T- fset ymax 1.04 l$ I1 o. w* X% ]2 b& D/ }
4 e& V1 g5 e' `0 t4 Bclear-all-plots
' {* O/ p' c9 b: n& c# |( ?* o
; a4 Y+ Y) x/ N! q# [+ F0 o! wsetup-plot1% v) e5 y$ m s5 x! N
2 o( P. q, z1 ]. o3 f' s+ Ksetup-plot24 l' v5 f7 L) N1 j: E6 Y- |; t; t; T8 Y
& x+ s" V; l4 l* }7 n6 a8 asetup-plot3
) f6 n6 U) K! J8 Q2 m; z. y( {" Hend p) f# ?2 ?" i% v
1 w' f- \& e' D$ [7 G4 A3 S( F4 R4 s+ J
;;run time procedures
7 S+ c( o1 ]% N9 r, ?0 \, i- I0 B4 p' B! J: u' C
to go# ~& R" n% V; a$ R- `, ?- P
8 S. f. ~/ Q% `ask turtles [do-business]7 N+ Y1 {) G0 v. e
end3 V! f- S4 c: H( q( {, W
9 m; O T. `1 }& H% u- nto do-business
0 }" `" y F: u* [- l% Q! M( X1 o: F, O# }# L. e: M$ e% o) ?
! \! {0 J f# Q( T0 [* e9 E w
rt random 360
" x4 u9 J6 w( d+ n+ a4 ~, ?- X" O- h) i+ P. V- ^
fd 14 L8 `; |3 `, F ^+ M$ I/ A6 U) F
/ s" u) z; Y7 y ~0 N8 y
ifelse(other turtles-here != nobody)[6 n# t2 d2 F6 i, N, _0 t% M
- ?' }: v, ]9 R: l/ J( N
set customer one-of other turtles-here
7 [ ?) v( {. g( [7 {2 m
# P& R4 X+ c; z, l;; set [customer] of customer myself
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/ P7 b$ ^# m6 D% G; V- Dset [trade-record-one] of self item (([who] of customer) - 1)
0 z) ^2 A4 u y' V/ s[trade-record-all]of self9 P/ p* T6 x" v& f( \: o3 y' O
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) [5 S+ u2 e5 s% R9 X$ K) W& u v
; i3 Q. H6 [" h7 D! @set [trade-record-one] of customer item (([who] of self) - 1)) e: j8 W1 _7 }* O( w% w9 P
[trade-record-all]of customer
" F$ A6 I) h b: \( Z! i; k$ C2 M# m. ^2 u1 c/ w
set [trade-record-one-len] of self length [trade-record-one] of self
- i# _& ^6 s) M& w, i% o! g' |: n; b. |/ L( e
set trade-record-current( list (timer) (random money-upper-limit))7 t5 }9 B3 X D' e5 `/ i3 Y! O
8 @7 m4 ?4 v5 p) F
ask self [do-trust]
4 j8 u1 V" W. i- g4 D: C+ M! f2 {;;先求i对j的信任度1 v9 R6 m& I5 _
' h- n7 K5 G3 \/ i3 P. c, z( [if ([trust-ok] of self)4 a& |' H* }" J# z
;;根据i对j的信任度来决定是否与j进行交易[
& q" Y @# P3 k7 u" w( Mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 o- |: ~+ }* a7 Z
# w. w# b3 f& i! i; h, A4 V
[! N5 ~& N9 v$ } `& S
/ l7 [" {; z2 i* f" M# d6 Ddo-trade
8 \) n( X% E; K9 o& K
- s& q- u4 V! M r! x8 S3 dupdate-credibility-ijl
9 D! a! ~: I! H: w
# Z$ f8 W/ T/ @ x9 ^update-credibility-list6 b: _0 q9 K$ s, N0 Q! ]1 S' {$ H3 P1 Z
3 V4 \4 C' X! s
6 t) K0 R t+ h$ a1 p5 f: m" Uupdate-global-reputation-list D, r f, N# z6 j. A
3 z I S2 ]/ n9 c
poll-class L" G% w0 Y3 ^( A
# \/ G" S3 R: j
get-color w' H9 j6 j4 T; G }6 I J4 H6 G
. a3 L K: ^$ F2 C]]1 C+ H# g+ R0 O
$ c1 |. F, ~4 Q3 v3 N) A;;如果所得的信任度满足条件,则进行交易0 H p4 n" o2 r. m" c# I
0 H! b* E* O; @) N7 X3 ~; _
[
8 C( S q4 y% L4 V" M# ^; c7 m: ^# U. U9 O$ g. S4 u
rt random 360) X# a3 [) J+ v/ [ B1 B* U: l; X& a4 C
$ U% j5 U/ }6 F W+ r8 E( M4 H0 ^fd 13 v' s- Q/ p! r, F
' f( U* y4 ?" _6 _% N
]
9 ~# a c. i/ I7 _+ L3 ], x! r7 G* N r9 H) ^
end
q, A% T( q" {# K) F5 z
/ e9 E0 p9 g0 S) L% _, Xto do-trust
$ |& Y3 J. [/ |5 i iset trust-ok False
: F$ B: v- K5 N: X% Y
2 O ~' S9 f5 U8 X. N& x7 u
9 {* @* C! k0 R& z7 B( f) j; Plet max-trade-times 09 {9 P: i, I$ l* v$ x
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 q: Y( e" l& q6 E% V" }0 u6 T
let max-trade-money 0& H1 ^: c, G& k$ } O
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 f6 N: w8 L; e; W6 L
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( b0 n' P( i9 w, T7 I4 {; V* r3 T! `# l2 g* E
' L# m2 K, W! E0 {! zget-global-proportion/ k$ x' B# X1 H
let trust-value. h& w/ k* [7 `) @- @( X' W7 |
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)5 L9 C! T0 o0 C; [
if(trust-value > trade-trust-value)
6 m2 d1 A) ~* `7 d[set trust-ok true]$ M6 ^* } P! ~' U$ D
end
1 C6 O v& |! W) G+ z- C+ y" ?. l7 \0 h
to get-global-proportion9 |, ]5 x* J2 l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
^$ |2 F7 U+ G. F! s& t[set global-proportion 0]" D. _) w/ P, O: E R- f, L
[let i 0
( u7 U( ^ B J- h& g$ Clet sum-money 0
7 c/ y# b/ z: j) S. E. u* g4 jwhile[ i < people], X7 ]2 s+ h* I+ H; N
[
+ N5 U8 d" U& ~. kif( length (item i' ?3 q, t1 Y0 V3 {/ Y, L! j
[trade-record-all] of customer) > 3 )& k0 u! b0 R6 T
[: I) N0 P& b5 S) w
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 l w/ e, T* W& h
] Q8 ?" t3 O; |0 ]! v5 j! e: B# S
]3 a/ X# X# v8 c" ~! O! d3 |
let j 0
" g5 T1 m( v# T3 N) ^let note 0' I; R% v0 @7 n
while[ j < people]
4 J5 `1 p, h% X# y, V[
8 A7 t$ e1 L( x+ wif( length (item i
+ b2 C4 B' H4 [; T[trade-record-all] of customer) > 3 )
( h7 |( [4 [( ][, P" p2 ]7 E9 I! X- D& R3 }! I3 D
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% Y" e1 F7 Z6 r9 g, o9 T6 ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
. n& N5 z" W+ c8 ?[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 h- g4 d# s) u/ B
]; D V. R: Q. I* e" @+ ]1 C. s
]
1 }2 T8 G9 }, @+ c, eset global-proportion note
1 m! v+ E& U ~' H: s+ {4 m]
, h% _/ ]$ Q) d J& L( ?end9 z$ x9 o; d9 z, u
u6 N& H# K1 G. Vto do-trade
1 i) _, Y- h6 {6 q: `;;这个过程实际上是给双方作出评价的过程" J+ {7 q: ~4 C# ]; r) s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ N0 K3 @( ?( D/ X+ ]" \4 y+ g2 Q7 ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价! V; u) q5 W. a5 i! B; q
set trade-record-current lput(timer) trade-record-current/ b' J& s# F0 `1 w( I
;;评价时间
0 r( p. a" J | e) Aask myself [
- Q; h# b+ C; [8 s$ Y$ Aupdate-local-reputation6 }' N" R2 E: E7 p* l" L& z9 }
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 E2 V8 \/ m: W( y; j* L5 M]. ]' R8 t Y$ `7 O
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% g; V( u% k, P# m7 u# _;;将此次交易的记录加入到trade-record-one中 ?0 ?% O$ H* u; N* r) E" l# n+ Q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 b8 x3 I5 P% N& w. m7 E% v% dlet note (item 2 trade-record-current )
$ y5 Y/ S4 k5 o ~+ J M8 Mset trade-record-current
; P1 m" p6 r( Q) i5 D(replace-item 2 trade-record-current (item 3 trade-record-current))
' j# _$ A; \: N4 e# x0 ~set trade-record-current* C) V4 M1 R4 P* U, \* _3 s4 p
(replace-item 3 trade-record-current note)
) B. x( l, ?) A i# W
& r. d' V; ]* ~, I3 D2 d, Z" y$ g8 Q% r, N, G
ask customer [
' m+ k5 y7 U9 \, u- X0 G' k1 W8 `- Gupdate-local-reputation& z6 u0 N' F7 X& C. Y' y
set trade-record-current
6 @" W& O( {% i% i$ \8 I(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 Q! E- M& y' J5 A
]) n$ T. j8 p- Q6 A
" W) e! K& {0 H, D. c3 d$ P5 D4 e
8 v$ d) _6 r& b; W1 dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 T, \( M' Q5 B9 j: U) O( e% Z7 N" f5 _6 |8 m& }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, [+ E \" v! Z$ \; ]. e7 q ?$ D; c;;将此次交易的记录加入到customer的trade-record-all中8 X7 g/ \1 U2 E2 E* O! y1 P
end# `- A5 Y f5 K& h. {% ^+ ?: r. T
& w/ X/ z( C. S9 c$ y: Cto update-local-reputation
1 c# b) G- i+ ~4 P5 v- iset [trade-record-one-len] of myself length [trade-record-one] of myself
8 Y' k7 n. _6 q: ^; d) m% v$ |, Z
5 E6 |& l9 n) X; ]5 z7 n
;;if [trade-record-one-len] of myself > 3
2 y+ U. l0 e _9 z$ xupdate-neighbor-total+ x9 @% a; e" x0 _/ {/ v# m R
;;更新邻居节点的数目,在此进行
- l) s) D9 ]7 h" olet i 3, f6 n7 x* q. b- m3 l
let sum-time 0
N/ d7 j) }& l# {while[i < [trade-record-one-len] of myself]
- r' ?6 ^( _* ~+ B2 v+ A# g[2 S% e1 w W/ B4 E6 X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* r9 f6 j6 e& z" z" x- n# w# U
set i8 q- j1 A1 A3 D1 n6 ^
( i + 1)
1 v3 G) q( W, }]* Z7 u/ c/ `& p
let j 3) ]8 C' Q" _& h- l
let sum-money 0
& [* @5 e, c' f, p* z: C: q1 {while[j < [trade-record-one-len] of myself]& q$ F$ V6 v* \0 g B* w
[7 `7 C( P% E( M& e( b1 f9 C9 s+ b
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)
* ^6 F) C7 A( O8 C7 w! w# mset j
& A7 o9 l+ s, y& m# F: A( ~& ]3 v: @( j + 1)$ A# E7 P5 N8 O( w7 W& ~, ?
]
# v* [! Q7 a) g# Q5 ?' Klet k 3
g( ?# H& r) clet power 0' u \: e. v5 _3 O
let local 0/ X0 p, _3 }% T8 X4 k* G* @
while [k <[trade-record-one-len] of myself] \; J7 s9 H2 Y' I' Y
[
3 \" P5 Y/ `+ }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) : {% S& `- X8 ?' `) p
set k (k + 1)
% U" u% f/ @% ^: t0 [3 `]
0 n4 j2 s7 l$ B Q2 O* }* B3 l# Qset [local-reputation] of myself (local)3 E; g% ]% o* s1 y3 P( y1 I- a
end
4 c6 y! n6 {! A7 Q& m! v p( a, @- f+ c1 A, x# Z8 u% @ ^3 V3 Y
to update-neighbor-total
3 u+ K8 n% g& e5 t) C, P3 Q; u, s& |" [ x3 F3 F3 y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 S$ e# C2 D+ [5 _0 `4 M9 {* w) p8 k( N
# V4 g& o% n$ a
end: x: U: s* ?+ R( e. o$ ?( v3 x* S4 q
# I" H$ L4 H& g! `4 Z
to update-credibility-ijl
7 O( ^: Z; V/ ?( v( p$ V1 z, V1 [% a3 G/ [: b, d
;;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。; N; H5 P9 e: _9 {3 d
let l 0
4 q& `, F& [9 u( Zwhile[ l < people ]
; N, P a3 V5 O. w5 T" F;;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& N* m+ y- ?" P
[
! [# ]+ Q, e+ b4 |/ \% Plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)( I7 {2 x& {) o$ J; V) w' m S
if (trade-record-one-j-l-len > 3)6 Q7 ~; z0 c- f3 e& H+ h
[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( ~, A/ k. G6 ~- S
let i 39 W7 p( S9 \( \
let sum-time 0
+ ~- g- v& g5 c6 L" dwhile[i < trade-record-one-len]
- b( e5 `1 h- a% ]2 b% D& I[
+ e }* |" f3 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 A1 b, t4 t& Z+ g" x, [- pset i
* K |- n" H7 s( i + 1)
) e. a# q: [$ U& K]
& n8 G1 m; m' T1 Z1 ]let credibility-i-j-l 0
! o- L! D% M+ ^, _' C1 y. b5 [;;i评价(j对jl的评价) F: T. y: q Y
let j 3+ W& E9 q- d7 Z( ^
let k 42 G4 k/ t9 N/ m" f L3 `/ | k. q, c6 y
while[j < trade-record-one-len]7 W! Y3 n" a7 T+ t3 A5 N
[
. ~2 V, p- {9 M2 \3 H# m: cwhile [((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 Y8 ]. B; [% e* x. |0 [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) m' w& f$ H: P' \" ~
set j+ c J3 t# q9 i/ a
( j + 1)+ H6 H3 B$ Z. v" g; p( O
]
/ h! [7 \: l1 n8 B Dset [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 ))" R3 @, ^* L! f8 N3 P) a0 Q6 C
, g+ X, }* v2 P# U* |
8 W8 @! A$ z( ]5 n7 vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# N2 s+ Q( u/ O4 M9 u1 V* O;;及时更新i对l的评价质量的评价
: x3 i3 v0 k2 P" D# @set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 Z$ H' W$ m7 G4 c z4 b8 Q
set l (l + 1)6 E s1 j. y6 W
]
" K6 F6 _7 }+ \* ~" Q) r. u5 Iend9 M3 G O, E0 e* q3 @
$ S% B4 f3 d: i/ wto update-credibility-list
, }. N$ o6 M0 U. Slet i 0
$ K2 g; i5 q) [/ r$ a- d1 U7 `; Nwhile[i < people]
: Z2 k$ X0 h* P1 d0 q7 `* C* b. \[; ^, s$ ~( f! k/ |/ {: W+ }% A
let j 0
9 r1 `7 d) Q8 rlet note 0- M, {! a6 ]# k: T4 O0 [0 m
let k 0 ?: N; N- U5 t4 u. w
;;计作出过评价的邻居节点的数目
1 N1 y/ w% Z! V/ U& n3 R* }0 {while[j < people]
_" f3 r$ R9 `% k: ][
* S: u5 F1 P& L6 Gif (item j( [credibility] of turtle (i + 1)) != -1)# F- x# K2 r, p3 g k( I6 _
;;判断是否给本turtle的评价质量做出过评价的节点8 G- `, D/ ?. F
[set note (note + item j ([credibility]of turtle (i + 1)))6 x" Q: I* o( P1 O* u
;;*(exp (-(people - 2)))/(people - 2))]
$ G8 Q% Z8 P' Nset k (k + 1)
; Z$ L5 ^. K( I; x5 @" V3 H& t]
! q+ S/ s9 j; A/ V7 M0 f3 Fset j (j + 1)
, i. b% l2 |0 I3 \5 p& L]
; r( t7 ]' p1 e4 L5 ^( p8 p# ~set note (note *(exp (- (1 / k)))/ k): A; v6 F7 ~/ j. I
set credibility-list (replace-item i credibility-list note)
- t6 ~; s/ x/ q7 E! x* D. t' @set i (i + 1)1 n# p4 I, t4 L: x' U
]4 M9 \4 k! ?& V7 c1 g& P2 t
end8 m7 F* B$ t' t9 i; I4 y7 S' B& U
0 W4 o& }; k2 @0 I: G" wto update-global-reputation-list
9 ]% _' E% q g0 D, ]let j 0! S/ n/ L, }: S! |/ Z% ~3 p
while[j < people]
3 d3 G# @ s0 m; r[
1 @; \/ d; X+ a2 E vlet new 0 e; A6 k1 n% p7 O3 R; C. N M2 D
;;暂存新的一个全局声誉
0 n3 c; ~9 c! }: X( q4 Nlet i 0
+ h( C. }( n; T+ f% Clet sum-money 0/ L4 g. a5 Q3 m) A" Q
let credibility-money 0: V: o% J8 Q8 Q3 {+ a* T) H1 I
while [i < people]
$ [& w1 `; C- K+ _" U" y/ v[! I1 W, {* H8 C1 r7 b* {+ P$ K' y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" _4 N _+ P$ ?4 Bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 S! }! f# ^' p
set i (i + 1): X) _0 m$ }: X' u# q3 T) k3 B) u
]" o7 X0 H, h& a: j3 R$ ?
let k 07 s- x, U% h2 T* h( A( X
let new1 0
. {( M& J! a5 d; Zwhile [k < people]
0 p2 _* E, [& d/ T( ~/ u" S[
9 w. o$ _8 [! x2 Z2 `+ S" X5 f' Eset 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 M" n" W/ M3 z2 b3 p! Kset k (k + 1)
* G- ]1 v1 e9 G8 [$ {" j, C6 x0 {]
% i2 _5 C, Z& Q2 e* u3 Oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * z( P- |/ w( ~' t
set global-reputation-list (replace-item j global-reputation-list new)
* c+ x0 A1 g, ~" q" q$ cset j (j + 1)
w, a. @" R# ?0 @ s2 \- L; D]( f5 q$ Y2 B. G' N, s6 B2 ]# U6 [$ D6 }
end' Z8 e, C* c& K7 _7 f" V( a% o! }4 _
8 o: G. e; N. B* r$ \& V
5 k9 Y8 \8 r" A: I2 S. u$ N3 c# C
1 {: a' ?/ J# c, H; }
to get-color- b) @8 {3 k6 n
6 O. a* ^5 s+ J( p- xset color blue
& \% A+ c9 N' U, N/ A* f' bend
0 N( H0 J0 B* k, @; z
/ m# E- j- x8 eto poll-class( N M/ [ V4 ` {, {( n- {
end; V! h) d/ }- Q' B! S" A# B
4 e1 o" y4 e) j. F) tto setup-plot1
$ G, c2 n! T4 ?$ F
. i& g1 K. F& k4 b! ^. Y4 o; Xset-current-plot "Trends-of-Local-reputation"
, w7 u. M8 |( T ?" ^7 b9 b: Z$ v5 f# x
set-plot-x-range 0 xmax4 q+ F8 u y! T8 Y
0 W/ q& d; u+ s- A \: rset-plot-y-range 0.0 ymax
( |0 ~: W. x, R4 ^2 Send/ b# d2 e6 T& _( P+ V$ r6 \- D- Q$ ]
5 l* O& S0 F/ [# L. e: Q4 {
to setup-plot2
! h! x: I) H7 c- k2 d
! C" {; q8 T1 Tset-current-plot "Trends-of-global-reputation"0 h! U( R0 s4 ~
7 ?6 n+ h. R1 P* m5 {7 A/ Kset-plot-x-range 0 xmax. f3 b4 o/ s# r3 k4 ^" y
% e: S) n- S9 _/ ]9 e
set-plot-y-range 0.0 ymax
* W0 @6 ]2 D, v- t) Hend
0 N/ j S& ? Y3 j
( ]/ s: }; {3 q+ ^* l, Dto setup-plot3
- J: |. ?& [8 ]$ ^1 n& w
' Q& v4 L# ?3 }5 g+ p, _4 ? K; Q p4 }set-current-plot "Trends-of-credibility"
& `7 ]+ C0 p7 P: A
, S: Z ]& ^4 L: V6 Kset-plot-x-range 0 xmax' M6 B" U, n7 I8 O
- U0 g- j8 R& U9 D3 f) d; U
set-plot-y-range 0.0 ymax* [) g0 J* R: h" M4 K
end
4 }2 }2 e1 z8 f, m: @9 [
0 D0 m7 z, q6 O. g J4 ~to do-plots, F3 h t. j. m/ T0 a& b
set-current-plot "Trends-of-Local-reputation": q' e& T( l/ G" g- j6 x
set-current-plot-pen "Honest service"
& z7 V! H9 X1 Uend
* C4 Q a# a3 ]- A0 V, O( y& X3 c# {' Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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