|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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0 I5 `1 a0 M5 `" Y
globals[
4 W) b1 e* f$ \# c* L% G! Qxmax- V0 n' i' Q1 X* K
ymax* c/ A$ d! s* L m! x8 O
global-reputation-list( `% s7 u) v' s# G, A6 y
8 A! S1 L9 l5 h& ?; P$ O
;;每一个turtle的全局声誉都存在此LIST中
' q3 }0 t0 G# \( Xcredibility-list
' m0 Z7 x& A' k4 h3 Z+ ];;每一个turtle的评价可信度
9 J; e& x% p+ J4 m6 P1 `5 ?honest-service2 R) S# F, z; d( n
unhonest-service+ ?' ^0 B; N' I5 P8 t$ j0 M1 K4 v( Y1 s
oscillation+ k' L j+ Z" m! P+ T
rand-dynamic
; R1 l# \/ M) S m! j. P]$ q& A! d- _/ {! G9 Q
+ r8 w. B& C4 \4 X5 B+ P& vturtles-own[
) f$ \9 ~3 g! Mtrade-record-all
8 R. P, d$ v) F8 s: l, K5 ? e;;a list of lists,由trade-record-one组成
( g7 l* m2 ~; V& D/ ^trade-record-one, E/ I. w8 C# m. W; f0 [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# G4 i; ~2 z2 S# a( t
' k8 r) c& W7 m
;;[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 e" D0 G e" t2 f6 R" J3 ?) ?0 |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]3 |: }! T5 L! e% Y0 q0 Y
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$ ]7 u& j! ]1 I1 N4 ?& v
neighbor-total
9 Y% K0 D' P3 r1 q9 ?, {: g* g2 V+ H;;记录该turtle的邻居节点的数目
5 ], q4 B* C2 A8 Q7 Ttrade-time& x$ C+ t$ U6 w
;;当前发生交易的turtle的交易时间0 e. d8 y% F0 W. K+ @% E
appraise-give! S( K( k: w0 j* i# ?% F
;;当前发生交易时给出的评价- z8 K2 \7 _( l& r" a
appraise-receive& \* V* R# O, F; c5 M: y* R
;;当前发生交易时收到的评价1 Y8 |9 ^( o5 E; w8 C' Q0 h. U
appraise-time) f- z. F& m$ v. J1 _+ O$ c0 q# e
;;当前发生交易时的评价时间 _) r2 b$ I& {, h8 Y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉9 M5 t. d# I: D/ H
trade-times-total: k0 {! m6 N! o
;;与当前turtle的交易总次数
, F! g- D5 w; ]. f/ d8 btrade-money-total
# T( q4 k: b! x' m0 w! b4 \' T;;与当前turtle的交易总金额 u' F# ?# _1 d
local-reputation
# r. ]; z1 a3 r7 _" Oglobal-reputation
+ v# }/ ]+ D! g( O, Q4 Xcredibility
) e# J1 {2 m' g) a$ ~' r; _7 d;;评价可信度,每次交易后都需要更新$ ~0 C( N( B+ ^2 w" |' r
credibility-all# \2 I- G) N1 S; ^; A
;;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
" Q9 F! I5 b4 }* q5 W$ x' s) o+ r9 V- @* y- F8 g) P
;;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
. k, l2 n# u5 c: Y6 i8 Vcredibility-one
2 C8 j6 w, x& _3 p4 J' n;;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
) ?2 l, h9 R7 @. M/ b% Fglobal-proportion
, k( V# P5 U7 F w+ ~# l( lcustomer8 V& t _4 j* ~; O' j
customer-no
2 {: r3 ]1 I4 |# I" wtrust-ok2 r8 P8 O8 U# ~7 d! ^5 M" }
trade-record-one-len;;trade-record-one的长度
- O* ^3 v7 R( b s& R9 \/ q, z9 n$ \]" {$ X2 h; ?# Q9 n; a6 K7 ^! O N# e
# Y. W& x3 o1 y5 g& [5 H3 t% j;;setup procedure
5 X+ u' O r$ M: C& |5 Z/ i0 Q5 U+ r$ ^
to setup# z$ D* s" i0 J$ ~8 P( G: v
# l8 j4 b t4 e6 i T- {* N& Q
ca! i. W0 N1 S) s8 o' _
$ A' [# e, d4 g+ v6 m2 minitialize-settings
! K- X5 d$ w: K+ ~2 n. V k* l) ]$ i5 M; c- M; u
crt people [setup-turtles]0 N$ v" F4 @. {7 `0 y# f, L
+ }6 e. O/ [" i C( E' {* A! \- Qreset-timer
8 B: s! Z, x0 J' [; W
3 i( D- |% B. J7 g$ @6 n1 U7 b/ Wpoll-class( m1 ^; _' g4 @0 j5 F' F7 p
* D6 y, W4 o/ ^& o4 \5 v
setup-plots
6 l; e6 y% ~: G* L Y- O
2 C4 X+ o# S8 q" M W; V' Tdo-plots
, [: p. m1 J$ h* M; M7 W; \end
1 |* U) {+ C! ~! ~5 O3 t: ^, Y: Z# }8 D
to initialize-settings
& ?4 J+ U( d8 t4 \' k& w U6 S( t9 E8 f9 H% S9 U8 \% a( C
set global-reputation-list []
: A+ U. M) U2 q2 b% {% W) X) q& @; U7 r+ R8 S, l6 A/ D1 b, ?
set credibility-list n-values people [0.5]- f( N% U7 x8 D+ n" T. b* l2 `
5 T' M8 g: y: x- I3 T( m- Z' X6 {
set honest-service 0
, T' M* r, k6 H4 G) i5 I# G1 x, P5 _" b# Q" U$ `+ `1 K
set unhonest-service 0
M6 h- h& w' e; w/ h7 v
$ b; [% k& D% T, q, Gset oscillation 0
+ B# z! P+ x( E; f; }
/ Q5 v+ s. I; U, F$ tset rand-dynamic 0- i: w7 r w. L
end
5 s4 N, \! U l$ O
0 o y3 X+ W# ]5 N Pto setup-turtles
5 E; U5 w/ T; d+ [2 k- Vset shape "person"
0 V, o* L5 ]+ Usetxy random-xcor random-ycor
, A h6 q) T6 {" _) P$ B+ Jset trade-record-one [], H& G! }2 H' M1 C# p. T+ g
4 s D2 p& a3 @. [ S( {- f3 ]! Z3 mset trade-record-all n-values people [(list (? + 1) 0 0)]
: j+ T6 W, ]3 P: o
D: S, }0 [+ u, _+ ^) q! h/ ]set trade-record-current []
% ]& R: ?1 N0 N7 ]6 U' M6 Nset credibility-receive []
6 u8 V9 |2 P- d8 [" n; O( uset local-reputation 0.5
- f$ T6 F0 R$ q6 i: E8 @9 zset neighbor-total 0
_9 x6 @2 L/ I$ Rset trade-times-total 0& Y5 B( k8 d2 ?
set trade-money-total 0: G: y* u, D% {: H7 o7 ^% e
set customer nobody
7 X0 Y4 Y# B) Lset credibility-all n-values people [creat-credibility]
& F/ f/ D* p, w1 Q6 w3 x8 {) l( @8 h' gset credibility n-values people [-1]. _5 c6 i& G# G( Y5 E3 w. _
get-color1 Q, ^/ Y" t- j( G/ T& n
4 d+ B! l" x. W3 p# w+ Lend) _4 h+ F6 W" d
9 B* ?3 e; H& U9 Ato-report creat-credibility) T/ b6 v% J6 i0 s/ f
report n-values people [0.5]
- W( |) c7 ]! D+ u) ?end
: L5 J. N9 ]5 i7 T9 r3 W
; t' w. A" R6 @to setup-plots
x/ v/ _) Q0 q2 ~) d. `3 `1 s' a# K9 @* T, X
set xmax 30
8 t" S. E/ i M2 n% k9 T7 u" J \2 s8 x) _! _9 _; O* W6 O
set ymax 1.0% Z$ m; A6 v ` _
. B$ ~" k& d/ K8 V& W- ^
clear-all-plots* p' |( Y* `6 V; ~3 u
- ?, O6 u6 c# C r; isetup-plot1
8 T+ D: I! q3 J& O
1 `* W/ T; H! M6 T) W9 N; Asetup-plot2' q) F# H& i0 N" k0 u5 T
: q- \% w- d. d t) c7 S6 b4 _# k1 v* ]setup-plot3
) L; F2 j5 @" K( p- Lend
% }. y" S! T- L- |
! u' A) r9 T' Z+ N* l( i! k8 \$ K;;run time procedures. \0 ?. I# g5 y9 B; h* u
8 w2 X# ~4 @3 R- Y0 p
to go
+ P% F# B$ [ d s4 Q+ D
) L6 m( h+ P s% {7 vask turtles [do-business]
1 V7 ?" o. @, Z; \, F |end
Y' Y$ a9 G! [5 }% q9 \; ~; u
& s. f' D; s: i5 m& kto do-business
; t1 }- G& w4 K5 N! }4 |
' g& G1 R# v( g+ X4 V# O
6 Z; \8 J2 u' L/ Srt random 360: L3 T+ q1 T. ?& G: v" O+ L) l
' }0 b: E& d( Z; |! F( ]/ u) Nfd 1( \4 J( u* ?9 x
$ F9 C. h* H* g- z
ifelse(other turtles-here != nobody)[. l4 D1 H& m/ E, \# x& v
0 v$ h& J- \9 F1 j
set customer one-of other turtles-here1 }! Z% L* `/ J/ _; @) `
# m L6 Y$ |2 d$ o! N9 q
;; set [customer] of customer myself+ S+ ~: s; b2 ^, V& a
$ d% O/ |+ t) u0 V R( B6 e8 m
set [trade-record-one] of self item (([who] of customer) - 1)
7 i# R( A; h; R- a+ i+ y: w9 g; p[trade-record-all]of self: P2 z/ ^, |1 n% E+ c* a- Q$ i$ l
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- Y v0 W" c$ B( t; S
& _) h, j6 U- u
set [trade-record-one] of customer item (([who] of self) - 1)$ B% P# @( F+ [" D2 n
[trade-record-all]of customer# [( Q4 _6 l6 P m* `
\) c* g/ m q! Eset [trade-record-one-len] of self length [trade-record-one] of self' y7 F8 Q6 q% W; Z* D" ?
8 P( \% a# _+ y( J- ?' Tset trade-record-current( list (timer) (random money-upper-limit))
1 P9 U) b$ G$ e6 k
) ?. G4 C. D T$ Eask self [do-trust]$ s& o2 g1 O: b6 l$ l
;;先求i对j的信任度
. O2 Q1 N/ U* q& K9 ^7 i- u
" K X D" o# ~/ v( S4 Bif ([trust-ok] of self)! `, ~3 o% @5 R3 [4 Y5 H
;;根据i对j的信任度来决定是否与j进行交易[
! S, \ j" Y9 a) X1 v2 P8 Rask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself- R5 C: V; ?4 V8 ~0 V( i* T& @
! b: v2 ^! Y: Q9 C) r
[ Q5 v2 O2 k8 s9 ?: z
0 _) K1 i9 G& H! F5 ~$ Ado-trade, d: |# t7 I$ T- o1 a+ x' R0 [
8 G, }. X3 v: M6 N: C. W
update-credibility-ijl
0 }# A. T2 `' e# C6 Y
) ~. O% m0 T3 m- bupdate-credibility-list: l$ w1 Q, A, W7 f" Q; f
( ^6 Y! D. S4 h1 H" I2 b* l
1 P6 t. c4 w7 ^3 }2 C6 f2 b1 E
update-global-reputation-list- X2 o- Q% V# h5 p
3 P* G. W, t7 q/ _ Z
poll-class
" h5 s2 V' t; L5 _$ D9 w z& w" U; S! d" N
get-color0 l4 y8 N$ J" W! C4 `
2 X! c- x. [8 q( i! f
]]
7 C$ p) I. S) Z% Q
4 X7 |4 e& A' _+ R# d6 N;;如果所得的信任度满足条件,则进行交易! `. s7 s: A8 v7 }& _( o' L
& t9 O' r: U i. _: n* w0 f5 Q
[6 w4 H; i; |0 _
5 ^8 A; Q5 c* T
rt random 3604 I% B5 f! u7 q6 @
) [* l/ o! N6 Z
fd 1) B# U5 A$ M% R+ \, [
% B9 B: B6 R& O
]
' _$ H2 k9 D! M: S9 k: u' ?1 R9 T0 r5 e2 {+ J0 j
end
6 {' } E. e f, a) {* ~/ e5 a" U' B& p( e' T
to do-trust
5 _7 y; B* O% pset trust-ok False
2 }& F, i$ P7 r# E6 j
& z& ]0 G- q# D9 ?+ S6 K3 r$ l% J$ R* @+ X, ]1 B5 W4 h
let max-trade-times 0
9 Z7 c: Y p0 U% _* }' G& }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 @; ~' b8 d* |' Tlet max-trade-money 0
3 j! u. u2 T, L1 n- j0 I# [9 Wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" _" L7 x$ a, {8 k9 f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' u/ ?7 G. _' h# w; X- d1 n
# j l( u7 W3 m- Q2 c4 D6 K- x
% Q9 u3 D9 L: p4 q5 D8 s: ~get-global-proportion0 |! L: J, U- @" n0 ^. L' z
let trust-value/ e2 }& X( D4 a& ?2 e
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)1 D5 G1 ^/ ~4 _1 g1 Z0 s4 {
if(trust-value > trade-trust-value). v2 h, C. _( `/ D# ~
[set trust-ok true]. m, }/ w5 F/ h1 Q# U2 x. d. j
end
. d0 Z4 }" W; y3 G7 J+ H5 c3 I0 l
! @9 m5 ?, Q( k) M) Mto get-global-proportion
- F/ W& q7 O" P# @& d( }1 kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- f" K7 j1 [6 p0 R" G/ [- D( M
[set global-proportion 0]( H( X( G" G1 d6 \( b0 o' s9 R- r
[let i 0
u3 M& }1 b$ W+ B! i4 w! B2 o- jlet sum-money 0+ M$ z' Z: s e" f. k1 j( ~: D2 |
while[ i < people]- N) {% b' \) i/ v B8 L. k" R# V
[
7 @$ c4 ]1 _/ Z3 g2 a5 \# `if( length (item i
6 v8 f+ T9 g3 Z* W4 g+ z[trade-record-all] of customer) > 3 )6 ]9 r' t5 E! O: r
[# W8 u9 m& }! f/ O
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! P$ @- C& c. ~) O$ i
]$ U5 n$ D' |- m3 X, Q
]- C: _& H: }, M* m a2 B( @
let j 0
4 S* f8 `8 Y$ N/ llet note 05 @% U" U! c. d2 w% a. V+ v. T
while[ j < people]6 S' N9 P6 `& h. A+ Z
[
1 n7 u) v( u% Pif( length (item i, ~; Y* C! b" g+ E% D& G7 I7 C
[trade-record-all] of customer) > 3 )
8 _) y& F; A- ~+ C# X[ i* f4 w- i+ a% L1 ]" ?* f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 E; r5 x$ A" P+ Q+ U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! {" C* \2 b2 z6 b6 x[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; R8 ~4 Z1 I: q, C' i
]; D2 ]1 E1 ?, c) a
]
1 z8 x; C1 w ^' f* e5 Yset global-proportion note$ t$ H( z. |2 s& f/ E8 p, I2 C6 Q
]& S7 t$ k7 W2 U! B, R- w, r! ?
end. {2 G |! y3 q( `. G8 i4 D1 d
+ _2 a, _2 Y7 |
to do-trade
. ]! g. q* X- p. N/ I& {! H& V0 t;;这个过程实际上是给双方作出评价的过程. @* e# _" ~6 B9 W% G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 P2 S, t. h3 q4 I% i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% |( d% f6 K9 l) m& x: F' E' S
set trade-record-current lput(timer) trade-record-current
! A7 a; c9 |" l5 B+ a;;评价时间9 h" T* d/ |( C5 P ?
ask myself [
$ o1 C, k) {9 B7 ~: ]update-local-reputation
6 X: \9 m F! n1 \* Sset trade-record-current lput([local-reputation] of myself) trade-record-current6 X+ j7 K: r6 L( r
]
. a3 {8 M1 p# E& U, {& Lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 s4 n: q3 p( \3 i& T3 z5 w& [7 g;;将此次交易的记录加入到trade-record-one中3 o) R% Z' T) |
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- l% Q/ k& g/ ]1 J
let note (item 2 trade-record-current )
) N4 V. S" ?, g! a. J* C/ Oset trade-record-current# z& W% q4 H. n
(replace-item 2 trade-record-current (item 3 trade-record-current))
$ P. @, \; v% x5 g" k* mset trade-record-current- n* h2 N! ]: \/ l% V
(replace-item 3 trade-record-current note)3 z2 L2 T% }) j2 L, I3 A$ [7 g3 ~1 s
9 P$ k% b( i4 M5 J N: ^, J
' j- Q& k* @# g8 Q Zask customer [
# H; {7 T7 l' _" Fupdate-local-reputation- J1 _. F$ {7 N e6 L" t
set trade-record-current
/ {, s- u3 u$ B6 U1 P" }(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ Z& a6 K, r [1 U8 w7 T* P]6 v) `5 H. w8 A, f) D3 S7 d
- y$ I, W X/ C$ S- O3 j/ i
~7 }& Y0 R: m9 j1 ~- g- T0 Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 v; l$ o; e8 c. G/ r; q/ z* S' y4 c/ f2 N8 M, h
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); j. c" b" x: |
;;将此次交易的记录加入到customer的trade-record-all中0 b. Y% p2 Z; A4 M
end
1 G3 n: e7 k1 Q6 Y6 |8 i
5 H, Q) |6 G1 g" m* b: [' g/ `" x) K tto update-local-reputation
$ j G. I/ r( W, V# Fset [trade-record-one-len] of myself length [trade-record-one] of myself: q( M/ [3 G0 s2 f4 P' w0 O0 @. G5 ^
6 i, s& C# o, n* N. }
, A* ~( A1 ~0 x. F0 n5 b7 _, a3 u
;;if [trade-record-one-len] of myself > 3
7 F/ j7 g0 b6 X5 mupdate-neighbor-total) ^0 v! q) w) a1 `
;;更新邻居节点的数目,在此进行
# L3 Z# t( d" F- R+ Xlet i 3
1 P- d$ B' \) w! T, f) K5 }+ Hlet sum-time 09 O( j: c0 F2 m( `$ T& h6 `% C! `
while[i < [trade-record-one-len] of myself]
+ e# b6 s/ U+ [8 P. j[; }) M$ T9 \* x. } m
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% h' C) e% m: @! |- Kset i
% C: P7 d+ \ Z+ f8 h0 m1 e( i + 1)6 x# P1 w8 E$ p5 p* C; v, e$ |
]
. d) `. i4 S# o8 |let j 3
) T& G: ^$ t, G8 s7 W* Flet sum-money 0
6 W% B3 k# X5 Y8 mwhile[j < [trade-record-one-len] of myself]% T% ]0 {1 Y. k. D7 t. I) R" ~- N
[
. h1 P( |) r/ G6 ~6 }$ rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)5 g- f5 n! O5 N2 g8 K' I8 z- h4 K
set j' k1 r t/ i0 H- B
( j + 1)" Q% f% w ? _/ d, G
]
* h m$ Z7 q8 g1 m, Y, Blet k 35 k8 _' k* M# z1 x0 ?+ V
let power 0' c3 D6 ?9 z! o7 I9 P( H: o1 J
let local 0
5 N, {1 i0 J0 x) L6 m3 I twhile [k <[trade-record-one-len] of myself]
3 J8 A5 C/ W. F* w! U[
' j: Z. c" \6 T$ J5 v1 Z" mset 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 M; M; x9 E3 J2 ^% {4 n
set k (k + 1)3 J" r/ ~* v, K( K; y- x9 x
]
/ @7 u2 m; p; r+ K' N' ~1 cset [local-reputation] of myself (local)* A& S" ?4 q( F# E
end
0 J. h! z& O2 V. e, n! T0 E
2 N b4 T- k+ g! W, _6 ?/ x6 Nto update-neighbor-total6 d. X& k; D9 h. u
# e0 ~- B# |, `0 i# ^
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 P0 n9 O4 G% R& F& e7 e/ A0 p a/ o# [+ z! D [
- F5 }/ g# R: C9 j+ F! J7 K3 lend7 B/ x5 ` a3 A# J( E. d, g7 h
3 P" x, Z4 E! T1 Jto update-credibility-ijl ! T; |, d4 M, S \5 `. F( Y
. f% u2 g1 [4 K4 T# l
;;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。
7 n1 g( v& B$ A# u' k- K9 qlet l 0
$ ]9 A! }" b' M) a' c- F) Awhile[ l < people ]- m |4 S: Y! u, }4 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 X; W0 z' {; p5 c2 c8 j
[& I. C6 m3 w; B) ^2 ^0 [* p
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ v) t/ ]# m3 ^/ h
if (trade-record-one-j-l-len > 3)
8 }" z8 Z- o2 D" _4 M5 D; V. y[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-one7 T( A" Z, z2 f" s, N
let i 3, |! X& e" V6 M& R
let sum-time 0
% Y& b; P5 o2 k g: P2 V. uwhile[i < trade-record-one-len]& C; U: V& i2 I8 x% y( S
[0 ?+ x3 Q1 @! b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 X. E: R% o0 q! k, J9 w
set i
& X8 u) }/ U# N7 M. [& h1 d! I( i + 1)1 x. N6 I2 ?$ U u7 u( z+ s
]% B" [/ F1 r/ N( ?% J0 w
let credibility-i-j-l 0( z/ z9 E& k ^1 G, p0 \5 t" ]
;;i评价(j对jl的评价)
, D! c, }+ G" j; Y( ?& l3 Jlet j 3
1 p; O- D- T$ l% l. n- ]let k 45 n% R" w: ?% R( l) `5 u2 y, T
while[j < trade-record-one-len]2 p+ F. u7 I+ v
[9 t8 L# _# t( Y1 d
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
: @ |: ~+ P" eset 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)
9 C) I/ g- ?2 F. [% D- bset j) k5 b7 p3 E1 y1 T% o2 ]/ ]
( j + 1)
. e- x/ o1 H: w]
, Q3 s* S* h( z0 e$ d& v5 |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 ))
. P3 m7 i0 l. P2 M0 _' r- a4 R8 J
; m m4 L9 r! s2 O# u- l5 Klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% K( S/ x: c" s
;;及时更新i对l的评价质量的评价
) f0 y; i) y* R6 e3 g2 Xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 ^, H2 c& H( P0 L7 q
set l (l + 1)$ l) l, @6 w, }# K* c) [
]& F7 b B% c3 i7 P+ `+ {# x
end
$ f! Q2 E9 k0 s, C. N
) x3 h0 |. G' ?& A; Ito update-credibility-list
9 \9 V4 v' x2 _* \- p7 r6 i4 m, r7 ulet i 0; r% F; v6 x/ x4 E: i
while[i < people]
. h% t, a& f( {$ h9 c: @[) b( V) \ M' V3 q- f$ B% s- f
let j 0) X) F- h4 S/ b% q
let note 0) b3 x2 a% O+ Q. P# _
let k 0. `3 b8 J# A+ w: X" B
;;计作出过评价的邻居节点的数目
" ~; g! ~2 o: ywhile[j < people]. g( Z% l. O e( A
[
: [" W; j, x! {0 X# K) J8 Sif (item j( [credibility] of turtle (i + 1)) != -1)$ h; ^6 A9 Q y- c, [5 T$ N1 [8 C$ t
;;判断是否给本turtle的评价质量做出过评价的节点) G% q, p; A$ K0 g5 k- n) _
[set note (note + item j ([credibility]of turtle (i + 1)))+ n" B+ Y3 i: o( K1 u2 C
;;*(exp (-(people - 2)))/(people - 2))]- B( S5 X/ n. D7 d0 |4 l
set k (k + 1)
1 v! }' Q% ~+ g" k1 d& g! @" u9 P]5 x3 ~, Q. k2 y: h' r# A' Z
set j (j + 1)
) o+ W$ j- `# Q) @: m9 l]
6 o' T/ D5 s6 E2 u* `3 m3 ]set note (note *(exp (- (1 / k)))/ k)9 \/ V3 r( t% D8 Y
set credibility-list (replace-item i credibility-list note)
' f- o0 `! b) }2 zset i (i + 1)
. g$ U$ K* P( j% l]
. F( X9 C' f" C) Y+ dend s2 x# g& q& i" r
0 d* N' r4 S; t
to update-global-reputation-list
5 O- q6 W. w& Y- `let j 09 O9 s; k" r4 Q3 p8 D
while[j < people]; ^1 t; x) m2 `% F# c
[1 i+ l' Q4 ^( Z) z
let new 0
& m8 u% a) g* _. w7 @- s4 x' O;;暂存新的一个全局声誉, a" F! s( z8 T" d+ T
let i 0' w) L8 y" h% M. K, i$ [' r
let sum-money 0
$ @- f( O) Z3 b4 b- ~let credibility-money 0
4 E* M- K0 U" U2 o7 L* R3 `while [i < people]
9 d* W8 y# H1 b5 `( d[
* x$ l: F0 u4 Bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( z& {* o1 l# }* u$ _9 ^: ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). n4 T) E) T6 y
set i (i + 1)' V: p2 ?2 O* G, Q
]4 q1 Z q: P: h3 e
let k 0
, A& S5 Z9 t. p# {let new1 0
{, h6 y' x( H, Z. dwhile [k < people]
5 R' y( u) L, H3 r0 V[4 W: n, A/ l, z& ?0 @5 X( R% |( e
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)& m, X! S @; \
set k (k + 1)3 U: e9 P0 k/ a- }* g% i( ~
]" T+ u/ p6 R- n4 p, z- @
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 N+ c7 |) p. Z2 G2 U/ sset global-reputation-list (replace-item j global-reputation-list new); r% W6 X0 e' y, s2 y
set j (j + 1)$ T/ ]- i: d9 \; n! }: B
]! I" s( a: m" ~- e) _9 T
end
1 h' Q# @2 L) O/ O8 v6 T; Q) Y& R. _9 D! Q0 k* t
- k f$ l& c$ j' m! l' Q+ d" \! y) r% L' [% X2 [+ \
to get-color: ~* U- f. d2 x; t$ j i$ e
W8 i1 \+ x) s/ n) M
set color blue
/ f# U" K7 ?2 A+ mend( L& h( j9 @9 m( f, s
" J: L, T! `/ O2 | Y
to poll-class
" g1 d. W* p* [9 g3 p* ~end$ q, G: u) [# S, D
9 t U1 N9 |- [/ G# f2 ]
to setup-plot1
9 r. J: ]+ W5 L4 ]4 M
6 w1 X/ C$ c, j8 }# ]+ w2 Dset-current-plot "Trends-of-Local-reputation"1 X0 d7 \+ h: s: S% c, n+ l
% r. e6 Z1 I$ _; n8 Q
set-plot-x-range 0 xmax2 V }* {1 @' n( D8 l/ z
) O/ L& f/ _: `' }. y- S- Lset-plot-y-range 0.0 ymax
U: z& c3 E! ?+ Vend' T/ f& ^/ x3 H/ G8 l* x. l
! S* i1 U% b# Y4 e8 c" m
to setup-plot2
4 N' \. t: f. p4 {9 @7 V; _$ \; p2 m/ r3 U
set-current-plot "Trends-of-global-reputation"6 ~- N9 _. D5 r, t9 L9 y4 z
, {9 e' r3 f7 e' p+ }+ yset-plot-x-range 0 xmax0 e r0 f) W3 ~' i: m
- ? j5 U2 O* G/ G4 y" zset-plot-y-range 0.0 ymax
% G) Y. Q) H( X( Kend: Z: Q% K* P. r p# _
1 N# P: q" w6 w- ~2 ~5 Q# bto setup-plot3
2 X& @" i# r: k- Y( _5 K
: t% S3 n' V# L" Iset-current-plot "Trends-of-credibility"" m/ m# o& T" f/ S3 p9 w
! Z( A ^" N: E! gset-plot-x-range 0 xmax
0 `8 M/ w( e) q% x: q w/ E. v( p1 |8 y4 ^1 D# s/ C* e5 M
set-plot-y-range 0.0 ymax
' r5 ?0 T" K; q# c& { P: i/ mend
8 V" g0 Z( L4 I9 N6 i& _7 B! V, _# l8 A
to do-plots
2 W _% L& I" }/ l/ F" pset-current-plot "Trends-of-Local-reputation"
. k9 ~8 ]- y' |$ Hset-current-plot-pen "Honest service"7 g6 _0 J3 w5 |. G
end
8 c- b ]8 P7 I6 l# X- F2 x$ w; z9 ]. U
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|