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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7 y+ L2 r$ O ?' |9 m
globals[
" v5 F5 b, Z+ J8 Z+ ?xmax: O+ X* ]' a% ]+ L$ t+ S+ P) A
ymax4 c( f4 I6 J- C6 b
global-reputation-list& Q5 {, `, f1 i* L% A
2 j$ b/ N* P1 \) ?;;每一个turtle的全局声誉都存在此LIST中/ N/ ]2 ]7 K. C% ~+ y% k) d6 G
credibility-list4 x- ]$ P$ v) B& _ `$ X
;;每一个turtle的评价可信度$ m7 u% z. Q- ~, H# y
honest-service
( V, @7 L5 b: {1 x' m0 k, }# ~) Kunhonest-service
5 u Z, u* I5 _, K. Doscillation/ {5 R) A- G: q, H+ Y; |# h
rand-dynamic5 Z" C( `' K! Z
]
: Y' k4 k: K; c! P3 T/ C6 H3 x0 n: c; C: n7 z9 X: T( o
turtles-own[
8 a7 ?7 I+ ^$ E5 t" Gtrade-record-all$ h* [+ {: q1 w9 K" D2 F
;;a list of lists,由trade-record-one组成
! n% L4 @, d, R7 t6 C" ^trade-record-one
) K- _, Y/ R6 b/ ~% a;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) Y1 E7 n, s( Z6 P! ?
" x ?" j z+ s, N7 W
;;[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]]& ]- h1 ?+ s9 H/ V0 B
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]
6 H5 _. H* B5 n4 U# Fcredibility-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list2 T4 E* j' D/ _' b
neighbor-total+ }% w; b7 R7 w2 ?
;;记录该turtle的邻居节点的数目 J" u1 _# E: T: W: g6 _
trade-time$ ]# M, F* N2 }, V/ t
;;当前发生交易的turtle的交易时间
: _8 }' D" W" M) ~ K+ F- v3 rappraise-give. H3 y4 ?( v- P( K
;;当前发生交易时给出的评价
$ {# i. @# O0 q7 L4 Z( Mappraise-receive7 X" Q" W$ K- X
;;当前发生交易时收到的评价
8 g# T* Y) x) J/ kappraise-time' P6 |5 J6 }( P) {5 f, z4 {1 Q8 r
;;当前发生交易时的评价时间
' y0 |/ e+ w0 d' ]local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# p. ^0 ]' c4 ?. K. strade-times-total
- W" [' \3 ?6 y5 f' U/ O9 v# y;;与当前turtle的交易总次数
3 B2 E5 o3 ^" @1 U+ F7 U- ~trade-money-total* U$ y/ f" ^6 Y; F
;;与当前turtle的交易总金额
6 O2 U: A/ }1 M! m# d' A: slocal-reputation& w j3 b* G K% E; L0 x0 E
global-reputation4 A/ Q( [ L I. ]/ e
credibility
V l1 U" P( _$ [% U& \% _( E;;评价可信度,每次交易后都需要更新& E+ u1 V8 S* y: X/ k
credibility-all
3 T- m' n0 b# t/ Z8 E;;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
1 v( z; _% w% D# A; s# O
: a) V9 w+ V" R% d8 Q;;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 M# w: N4 Y, W% Q
credibility-one
' I3 r4 ^" Z0 t0 W;;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
' H& ?% N" E$ C# V6 `global-proportion5 K ?6 v$ P7 @9 {
customer
( U! c. T u& o4 i7 Bcustomer-no
1 w, @! Z0 d7 v9 `0 X# R9 gtrust-ok& n2 B$ ~' }- o" z
trade-record-one-len;;trade-record-one的长度
4 e. U v9 M* v- C1 S8 V]
$ {0 r5 r" P, _3 q! w8 s8 N! A5 T5 S8 @ o/ z
;;setup procedure
# c. o8 r: D8 S' A3 @5 Y b
( O0 R2 Z( N0 d8 G2 A0 Oto setup$ U+ q- m; j; o. w
. A4 T/ ]9 E# z1 Y
ca
2 j; v5 [* d! w- P" V; j& e. u) V/ ?- }# n$ `& ]
initialize-settings
8 M4 f L! r9 g
! ~3 k2 T$ N4 F5 bcrt people [setup-turtles]& M* `; S" s0 m( T1 A7 X
3 f# Y% m5 J: f7 M) C% Areset-timer; |# K+ H5 }: \, G
- X, y: ~2 o+ c" |
poll-class
3 @( L! v+ R4 k! v* N
& S- M- x# S; \3 Z- D psetup-plots( F* |) L; X: b6 ^$ d5 @
9 h5 n& s* ]- H# N
do-plots. e1 Q1 M5 W0 T# z, r! b
end2 G/ Z- Y1 Z6 g, C& S* L* ]- W
) i2 Y( Z" |% @to initialize-settings b* O! c; a" C. j6 O- Y1 q
@6 t* O4 S6 v' S- E/ ?2 \& \) d6 lset global-reputation-list []
; V; y% k+ m( m4 b5 o! d) y6 j( h: P1 _
set credibility-list n-values people [0.5]
$ w$ }, o5 i) E) B+ H
" |9 F8 C3 N5 aset honest-service 0
& |0 Q3 S; f+ ]2 ^( a7 R6 _( N5 f2 w/ j5 w
set unhonest-service 0, N) P: J/ p8 E- K- n! T. X* p
+ w, j- C) p6 ?
set oscillation 03 O0 O& e: q0 @) S
2 b( c, [7 ]: V3 y/ N$ wset rand-dynamic 0
3 W# g' U5 e/ L- K* Bend
8 S k& [3 y* n' @: x' C1 B
9 _: P( ^- M! U( }+ ato setup-turtles
; A( J _) G* _set shape "person"1 k0 n& ?- c) W! w/ ^
setxy random-xcor random-ycor
0 i C. `) c- R( o0 ` S, |set trade-record-one []" P+ m; t& `% n9 f8 m# o
5 z( |. x' J0 Y" N- \
set trade-record-all n-values people [(list (? + 1) 0 0)]
1 p- D( R" k( Y0 U) S5 t
4 M+ n2 C. ?& T2 P$ m5 E& o2 Eset trade-record-current []0 v$ ^/ O9 t9 x* |; W3 q
set credibility-receive []. A: Q, I X5 `( K$ j
set local-reputation 0.5
8 \ p# [. A! jset neighbor-total 0
* q) Z4 D$ s4 V9 \2 K. Rset trade-times-total 0. H: W1 w$ J0 U/ c, p" w/ ^
set trade-money-total 0
& u: X9 j. Z4 w& Q: K" G8 u1 x9 h- iset customer nobody
|. Q7 c$ t4 o, [4 i0 |. [( Cset credibility-all n-values people [creat-credibility]& ?1 G2 s9 \; W1 s
set credibility n-values people [-1]3 x# O1 z) P- a5 Q% q
get-color" e: @- e/ A- a( J% R
4 y! r2 K$ L4 C: L+ d1 q6 j
end5 f; v# T! N" M' d9 Z* {* p8 f% o
% Q8 K7 q A6 O+ x! ~& t
to-report creat-credibility
! v) l1 j+ h* w+ B* j: L' A/ [report n-values people [0.5]
8 U6 }1 D8 _% z9 q5 u$ f ^0 u* _end& H. \& U$ u' G
/ b' Y; ^# T" b3 S
to setup-plots
7 {1 X% E/ X0 K( u: S+ E6 w5 L
, I5 s6 Z; B8 ?set xmax 304 \" @0 N. ^7 V$ v
( Q0 W. J# ?4 H; u; _) z
set ymax 1.0
8 Y) w4 o" \, z* ]( s5 [( H5 }: l/ o( }' L' J5 f* h: e. X
clear-all-plots* u4 Z/ w) e) _) G0 x8 p, E9 ]
/ ?% c7 @# f4 J
setup-plot19 y" T, G3 `* G& u7 E3 w; p
) D5 z& C# ?; Q2 N( A6 X1 X1 C
setup-plot2 ^1 k0 ^# ^$ d* U- R6 x
$ z; [" T, Y J& u' k/ s; g. ?
setup-plot3
4 M7 c$ q% Z" d6 `, K/ {8 S zend X, X+ f j4 O% X0 X1 S" O) l
4 o) h* l; \) \7 T$ d* J- }
;;run time procedures
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to go0 R4 a9 r# G Q g
8 K) X' r# Y( E! } d/ ]9 g! A% l
ask turtles [do-business]
" k" {6 o6 N- P5 F) x( T) W, R( T4 [2 Hend' n) Y. G8 p- p
8 `8 Z% E' b8 t% L; w$ U7 cto do-business : J' n* p9 {; D8 j5 b3 s% o* b
! ^) T+ k% T3 M3 J
7 ]7 O( v& n, T# V3 t! F- yrt random 3605 v" v( [0 E) x; ~0 x8 [
$ L1 {( J& i3 `$ ^/ B7 K
fd 1* A& Z3 N: l0 D' ^2 [4 s
8 p2 V. \, J1 ?3 d1 |" \9 z! ^ifelse(other turtles-here != nobody)[9 K8 K- O0 [7 U0 e- r6 N
1 i7 O4 V0 |/ aset customer one-of other turtles-here/ i; b4 v0 R v% X
1 s% O3 I3 r v, u4 J;; set [customer] of customer myself$ U/ Q: s. M/ J8 p* o$ \
( ]- u/ o3 h I( v. z$ ]set [trade-record-one] of self item (([who] of customer) - 1)
( v& J$ z( d& [. |, |/ v[trade-record-all]of self6 Z& R6 ^8 e: d1 ~% Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)+ i, W- o) l+ U% ]' x- i& ]
[trade-record-all]of customer
2 c: t; n g0 ^3 L/ {. L. I$ E
& b7 g) ~2 s2 ?3 Y/ r5 Xset [trade-record-one-len] of self length [trade-record-one] of self
+ _$ L$ s" ~. r4 g! J) m# C
+ G) x. E8 D/ q! {& b% M4 Fset trade-record-current( list (timer) (random money-upper-limit))
7 i2 l; ^ }& L8 n5 F" e
0 i$ t( _2 S. m% M( {5 cask self [do-trust]3 N0 b9 G- y- G n: \7 o& T3 }
;;先求i对j的信任度
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. H6 l" u! C5 D9 sif ([trust-ok] of self)
F6 z+ a4 g3 d1 w9 D& E) z1 E;;根据i对j的信任度来决定是否与j进行交易[6 S* {8 q8 t- n/ c
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 l j, B4 A) [! f8 y1 X) N
q, k" W4 i; j
[
! U) Q" H* _$ U$ X+ t
1 t- [- A! j: o4 p7 Odo-trade7 h( M Q9 s E7 ]' d4 J
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update-credibility-ijl
O. `% U. q8 l7 y4 O6 [
d. i- V/ K1 {8 mupdate-credibility-list
# _+ d2 r) \. \& v; r, `$ n) y, y* T0 a. a" Q" R
8 P& O8 w7 T3 Y3 j% Y# W2 E
update-global-reputation-list
3 k! K, A$ y+ N+ ]! N9 ^0 K9 q; T$ n
poll-class
J; `6 v( W9 P# x6 |* K$ _! b9 C9 b7 a
get-color; n# Y, s* \# J1 [% I
- h( [2 ^/ |2 X( g
]]0 p! [; |) F* ~, B. @2 T& L4 B
* O: E( l- }7 M9 e' E;;如果所得的信任度满足条件,则进行交易; _, m" n- R9 `# ?4 v$ Z
. |/ u. } @! L
[
8 [! l1 O. x# z0 N( D: f5 J$ ^% M" n6 J7 |) P/ f1 Y: `" c; s( C! F. {
rt random 360
# \% L: D1 t% A1 o6 G$ `2 A; S. I" l9 x' C0 G1 W, C
fd 1
* C# h8 \- l4 y: n# `; Y4 x8 }( X% L* F8 V
]
. B) j& O- e" F" d; r9 C5 Z0 E O% Q8 V9 W, F2 j
end* h1 M# i7 b$ n# y9 B' ]- H- [4 q
+ N5 k$ F( i( x3 y% h0 s, t/ ?to do-trust
6 U% J5 \# A1 e2 c( x. w! yset trust-ok False
8 j. F% X9 Q" s+ d
4 G# s8 ?4 u; H/ r/ b9 \0 k, b. ?/ y3 u4 L1 A3 S1 ?; P( s. P
let max-trade-times 0
6 e2 P- f0 d5 n& b/ tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 m+ S- M6 A8 {5 u6 z
let max-trade-money 05 d, U' D5 h- G
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* E2 Z1 g8 j* l: A; m6 Y2 p
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- Y. ?5 r. Z& V8 Y$ x" @7 P# D
6 A$ d$ R+ ^8 _0 O+ H( n
, B$ |' j3 f5 Y0 d* aget-global-proportion5 p& r) J+ l% s* C# K" u/ Z# n
let trust-value1 b. e/ X) D5 K# j3 Q
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)
- n! @/ j1 k2 R$ E' G1 D4 c2 rif(trust-value > trade-trust-value), b% ^5 u3 r* }5 n0 S4 w
[set trust-ok true]' v4 {% ~5 a9 v; B
end
3 P$ s! T; v, v+ G' p# O0 ~/ |. p, g! r* _, H) E; {0 S( I
to get-global-proportion7 [% Y! ^2 B1 a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ q4 ?9 ^/ f% }& ~: i0 ^6 Z
[set global-proportion 0]
+ A h6 A2 ]$ X& _/ C[let i 0; ?+ _ m* j( C# K9 E
let sum-money 03 u: `; P& ^1 y2 [4 e" P! ?) ]9 P
while[ i < people]
4 p* V$ L" Y" n2 k. B' u& N* K[
8 W) ?1 U/ K" h3 s/ d& |if( length (item i) M- o* S$ Y5 z& m5 ^
[trade-record-all] of customer) > 3 )
6 @1 z0 V8 a( Q! f# \[7 k. U" K4 H6 k+ z* w
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! W7 z0 T6 n- B5 F- h- P$ H]
% n1 t& {4 ^( P3 R6 P, }]
7 _$ M3 A. p% ^6 z! q2 Ulet j 0
$ b4 A) K! V0 C/ z% |, k( qlet note 0
. ~- O' W2 P' W# s3 Mwhile[ j < people]
. K7 ~+ ^) U4 U" z[
% u( |; U, {$ Q4 Lif( length (item i3 V! D. C3 ~: u9 W, u/ k6 M% l
[trade-record-all] of customer) > 3 )
% u: t3 q4 {6 T; O" J$ n" a[
) o( F& D9 @% Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)9 t4 M9 [& ?9 B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 ~% q( R+ d, I7 w
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 c2 q: a& A( Z9 Z* [& N( ~8 E( m3 h]+ K9 I" t! Y9 u4 b
]+ ^$ W8 L2 N7 }6 R# q% L
set global-proportion note
4 [6 N6 ]; t* d% t2 r6 u]+ H: P) G) ?( L, S( R& g) W
end/ j9 h6 |$ O& I: E, r
+ t% \ A5 R }: {+ f2 Gto do-trade4 `; f6 M, Q* P
;;这个过程实际上是给双方作出评价的过程( w* d( A$ p# T8 F7 b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
$ U" ^4 _- r4 q. Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 k X2 @2 d' X" a* F- e( q- }
set trade-record-current lput(timer) trade-record-current' i$ X Y4 c/ G
;;评价时间4 K- a+ S V( ?! N5 f7 z, N
ask myself [2 J$ z+ a! e& o6 g% H
update-local-reputation3 ]1 b6 w; C& | |! e3 r, Y
set trade-record-current lput([local-reputation] of myself) trade-record-current& y, c+ u" i3 j+ V
]
+ L; s; _4 [0 h2 F( i( \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 B4 }+ J; e$ _( W+ q+ K& H1 Y3 o; s1 T
;;将此次交易的记录加入到trade-record-one中
; `# h' p% ?2 Q0 l/ gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 }) H, L @0 u! A1 @+ f F- ?let note (item 2 trade-record-current )8 ]/ z; G' C4 C4 [2 L( F D
set trade-record-current5 a+ A1 B, Y4 X. i1 k& Y0 W* n
(replace-item 2 trade-record-current (item 3 trade-record-current))- u) ?( B8 b1 Y3 u9 v- _8 |
set trade-record-current
- }- I# v: R5 F: ^6 \(replace-item 3 trade-record-current note), f6 y5 f% p2 V+ ~" z% q
; `6 P+ Q6 ^2 o1 w7 Y# P
; G, _( s; J& W- n; Cask customer [
) P0 O/ Y( k) F/ D$ ^9 H* D/ ~update-local-reputation R, e* ~- @# h& C# q1 ^
set trade-record-current0 c9 ^5 b/ V! P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 }5 ~) a, ~9 m" N
], s' P: U+ w: |5 c. N; p
2 D! a/ }% M" D" C1 c7 r3 V/ x2 H1 u7 ? `4 X$ Y% ]; E- i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 N+ L" G! U4 D; R" M8 F0 R' f! q# q+ ^
( D4 h" k" H! V# t4 Kset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 W( u1 `% f& {9 e, \
;;将此次交易的记录加入到customer的trade-record-all中
9 P: y! |/ N% y1 c9 c& j8 [( y: Tend
, T- L, q u6 e6 j9 L3 R) w+ F/ P, ^
to update-local-reputation
' h+ }* Y- y, y- E7 Q5 o4 `' F& Qset [trade-record-one-len] of myself length [trade-record-one] of myself% x. U8 T" M9 k+ Z2 v
6 m8 ]" A2 ~: w$ j5 S" r% E1 C9 z8 O4 G* x: ^* W1 w: t5 `
;;if [trade-record-one-len] of myself > 3 & E" s" B& z0 B+ r {) T
update-neighbor-total
- M _* x4 M2 o; H9 l9 C;;更新邻居节点的数目,在此进行
6 c. ^3 Q3 X; w: k1 Ylet i 3
G5 L* A1 @2 Z; d z' Slet sum-time 0
% q3 J% m* \7 w- Y% {* n# x" s( Jwhile[i < [trade-record-one-len] of myself]
! W# \$ o( I- ~4 h7 B3 y7 L5 ?5 C[
) b$ W2 l. s( {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& [! @ F8 A( C5 u0 Gset i
/ q `- u7 p9 Q- K- p( i + 1)
; M4 Y. j8 O$ ^# L3 O4 k6 w9 o]* x2 l9 e& D! G1 j% e9 K& T
let j 3
& ?6 c+ w6 M) [" _, [8 Dlet sum-money 0
9 ]# v: {. i) { t4 t3 bwhile[j < [trade-record-one-len] of myself]
2 Y5 r+ d- R+ [7 k3 C& v8 `% |[
2 Z: a' v/ A1 _$ O& 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)8 {& {) m* s$ O
set j f5 \$ C, K) c
( j + 1)
' u7 ~: ]; i- E. |0 R0 }9 m]
: g7 h6 N2 _7 ~9 B. ]. ulet k 3" x( U( ]0 f- I# Y
let power 0" o6 r5 S1 V9 U1 I; X# o/ ?
let local 06 K+ d/ o% U4 L1 p$ f& f) a- l
while [k <[trade-record-one-len] of myself]
. }, S, g- b4 I/ V( R[
' @7 z/ H4 i7 b( [& i0 q5 sset 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) $ N. h$ Y v2 ^% W
set k (k + 1)( U2 ^8 p+ C. J# @; i/ v5 Q
]
% r. B) l9 J3 X2 O* l$ ^set [local-reputation] of myself (local)' k* D+ V2 C1 O& p
end
8 o4 J( K& e& T7 y. f4 n% u) t9 c8 l
to update-neighbor-total" H# e% | l3 F2 S$ y- ~5 v
4 r3 L/ p. b: S4 Dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, o1 k$ S1 t$ n& K+ [
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5 ]2 g; Q% Y1 ?. d6 Hend
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to update-credibility-ijl , `9 k _8 Z3 b) E
$ T7 A4 E( {/ Z' A& ?$ p+ a; o- g
;;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。
# d2 M" ^! `7 r7 `5 o: ~' Vlet l 0
. I5 _& q4 j1 [8 e% v8 ] kwhile[ l < people ]
, }# R: a, h1 s6 Q6 D a! K;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' \" @+ K5 F& t( U+ z; a6 d oif (trade-record-one-j-l-len > 3)6 o$ R2 H( p' v4 |9 h, M
[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
J8 e" P; R* b/ v, y: Vlet i 3
: n) h: J3 {1 t% z- Qlet sum-time 01 ~) z9 t' \" N. d2 Z
while[i < trade-record-one-len]0 O# _# N+ Q" k# Z1 D0 o! Y& \
[
8 Q# b1 W& S* P& hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 `/ m% K, y( E* Gset i$ Y: i4 [! `( D4 b" d6 j1 b) {3 }
( i + 1)) q% j0 E) W! a0 c% `
]
# t m( M6 r& ^9 G. F- z/ [" `let credibility-i-j-l 0$ `( q: S" a9 c+ Z6 j
;;i评价(j对jl的评价)
' d- m, R; K$ k" q, l2 x$ v# zlet j 3' x; `) c2 g6 D& o6 H
let k 4
: t- V4 u- A' z" w/ Swhile[j < trade-record-one-len]
; ]: [* }5 j) _. H[
1 K: W H- d0 v5 d2 k% 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
! s) F2 [) O* C# C8 m* |( i' oset 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)
/ Q$ k1 v; T0 t- Iset j# ]0 P% ^ e0 B' P# e9 f. ?
( j + 1)
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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 ))5 ?9 Q6 F. s' {$ Z" c& l
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y" S2 Y! x7 m' G. x! _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 q8 k! l }' a- b ~;;及时更新i对l的评价质量的评价
" S) }2 @) @+ }5 b9 j+ f# }set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- ]2 s+ O5 N% v% z6 Iset l (l + 1)
" R3 l; ~! s1 @]
- G# L3 O5 Z; a8 M$ Zend
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- ^6 o9 N6 j" v7 J; V# h9 Mto update-credibility-list
$ O$ i1 l' }* J9 V7 J% k( V5 Q0 s9 Flet i 04 K7 Q9 k2 j/ ~
while[i < people]6 w% u+ T; O! d
[+ J0 p8 w, ~/ H: u* M" k: i C
let j 0
( X; m4 k" ~- M' rlet note 0
9 L* s* {+ e9 C( T9 }- X! [let k 0
) a) U7 i* L2 `: E* n; {;;计作出过评价的邻居节点的数目9 b: ^4 q( v1 _/ N8 |: ^; _. b
while[j < people]; Z; D- O- z3 O
[
# I, ~% \) b4 t% A3 f, S0 q/ j6 N; @if (item j( [credibility] of turtle (i + 1)) != -1)
- W5 Y! `2 |, g/ w P7 I;;判断是否给本turtle的评价质量做出过评价的节点
& L, W M. [2 M( r# Z, D `) D[set note (note + item j ([credibility]of turtle (i + 1)))
3 H3 f7 n* R1 ]" }# s% J0 e;;*(exp (-(people - 2)))/(people - 2))]; C! K2 r5 \5 g6 _1 F+ b
set k (k + 1)5 H( m5 F2 n s/ o6 {
]
( s# P1 \# ^9 w8 i% B, hset j (j + 1)
/ `! N3 {; T, Z1 O3 []
; B$ H+ V" c7 U$ Kset note (note *(exp (- (1 / k)))/ k), ]1 g9 T8 y7 t; h+ i
set credibility-list (replace-item i credibility-list note). ~" z. R+ Z8 S4 ]* A- X4 P' Z6 j
set i (i + 1)
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end8 d3 x# X- P5 K- M
3 y) y1 V9 v) }; b, C6 w& u7 T* \7 cto update-global-reputation-list( ]) `2 ~, [' n2 N3 F% @2 y3 u
let j 0+ _ ^" l3 o( s+ a, C w% @
while[j < people]
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* A/ Z3 ^% S6 x- _8 ?let new 0% q v9 a; @/ A" E0 R* J; e
;;暂存新的一个全局声誉* v- e& R3 H6 i& i
let i 00 }8 s! E3 M! B |
let sum-money 01 s9 s, t! X$ \5 N4 k4 ]4 x
let credibility-money 0+ H4 A- t/ Z: V4 s+ W8 z
while [i < people]+ Z+ n& D5 R# g0 j% y1 I/ O
[
1 ^' a& r& ~3 [9 l6 Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 s# R7 e8 z! }! F$ m" i
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' L5 K2 y# |( _/ A( A% z- T
set i (i + 1)9 S0 \5 D" ^3 J
]; N- d% q6 e) f- G
let k 0
8 j( [- p0 e* D, c9 w# Q6 Slet new1 0
* ~; K7 y' ]; v" H3 mwhile [k < people]
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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)
/ \( {+ n7 i5 c7 lset k (k + 1)2 H8 W1 \4 }2 E g2 G
]
2 D% N+ e5 P$ S3 Zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( w% e8 I. |3 m `$ iset global-reputation-list (replace-item j global-reputation-list new)* _% b4 r) n; c) {% e0 j: R
set j (j + 1)" K9 O) O1 a' O" C5 D9 V, K0 }3 U
]& H4 L$ \) _/ G6 O4 h! m
end
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to get-color
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set color blue
2 L6 ?% O, I1 S- h9 y- oend5 }; t+ `7 ]& }4 W' e; {# ]
+ l2 f- P2 [- Pto poll-class" @! u- J8 H, B7 B7 c; z
end+ |- E F4 y" ~4 `* ?
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to setup-plot1' N l- e5 D5 L) h/ B, p! Q
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set-current-plot "Trends-of-Local-reputation"' M5 {3 q2 v2 w& b8 q" W0 t" {6 s
; e/ B4 b0 u: {6 X+ }3 s! Kset-plot-x-range 0 xmax! m* v9 u4 C" k1 E
6 q0 B& j: y5 i% N2 yset-plot-y-range 0.0 ymax0 S' d8 Y9 T& l2 v }' B8 h
end1 r& q. x' G- k" p- b3 g, J
% o' h& R: h b; i
to setup-plot25 N- q' M/ Z6 A q( u) S
) S* ~5 }& N4 H. wset-current-plot "Trends-of-global-reputation"& t/ f! r' v' `! ?) x: N/ Y+ A
4 S' l6 r+ m/ A2 ?; F/ H
set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
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- g' q0 { x7 l: m. }
to setup-plot3
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X* s7 l/ r3 w8 ~' `set-current-plot "Trends-of-credibility"' M2 _& S2 \/ Z% k( }
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set-plot-x-range 0 xmax }% e3 e2 M( S, m& b, P
9 Z7 i7 J3 v, w' B2 C) O, m" Zset-plot-y-range 0.0 ymax, P/ h. \+ O% p" p: I
end! C; b s) y3 K
, [- }% I9 @5 y5 {& `" G0 A' i6 Jto do-plots
, Q- Z% Y i# A2 _ l8 [' X5 Y. V1 uset-current-plot "Trends-of-Local-reputation"- q, Q" ?% ]( |1 Z$ j9 ?
set-current-plot-pen "Honest service"
! H/ N% s0 @2 f/ B, _3 Pend' K `2 S1 h( g0 N8 R; ?
1 D* }/ H4 o9 [ e* E[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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