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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
2 _" J, k& O& f6 ^7 n; X! k+ bglobals[
" A2 b1 W C, A }xmax
* z. m; j9 o" B3 W+ vymax
. _5 Y' p+ i* H' W# O% E8 {global-reputation-list s1 _$ {' y2 h% j) q
: [/ d0 s8 o3 o( s: J
;;每一个turtle的全局声誉都存在此LIST中
% i$ @: R! y1 R% L& ]3 V2 @credibility-list
; d" f0 c2 V$ h) {0 o4 o;;每一个turtle的评价可信度
5 [# @( J+ C c, {7 Khonest-service3 ~1 |$ v+ h( |) {6 K+ A
unhonest-service
3 e) B O1 A6 C/ Qoscillation
0 v) u; n0 h# U' }* G9 |# k) D2 W" srand-dynamic
3 W1 h/ `+ J8 F]0 A, _6 c$ x% w4 u
1 H0 G) j4 c* ` }
turtles-own[8 g- u7 L8 i$ A8 ^2 Z
trade-record-all
8 s# s: @9 d0 n [;;a list of lists,由trade-record-one组成
1 |# q8 i5 m3 g5 p" }trade-record-one& M* G# N8 y; }
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, o5 y- b0 F6 F& v
: _! ]5 g& ]" N D! x* X;;[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]]
% v, T, o4 [% X' Qtrade-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]4 @. _1 _. F+ Y. Q$ n$ p) w. i
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
& o9 O- i2 |: U1 F# mneighbor-total
- j2 K2 g& ]. k+ D6 l;;记录该turtle的邻居节点的数目
% e5 {# e: l5 `9 j; ]9 E/ x2 p. otrade-time
% k; t+ A, H" l& p3 u( R: f;;当前发生交易的turtle的交易时间
& I/ {4 ^9 q+ G9 ], L0 v& `appraise-give
0 [7 P" I$ N q;;当前发生交易时给出的评价
9 V7 e" |$ G; Y$ gappraise-receive
- v% i* }& x4 V;;当前发生交易时收到的评价
8 @# L N y9 p" W7 y1 }. j9 g1 o* Pappraise-time+ _( M, Z& f3 Z* C0 s
;;当前发生交易时的评价时间
; O1 B) b1 X: z( X+ Dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 D6 f) o P: P- G9 r) Htrade-times-total1 { E9 h- ]9 n3 L! H) H' U
;;与当前turtle的交易总次数
T9 `: c+ [% v* v9 t2 strade-money-total
' G! s6 X6 h! A8 U# J;;与当前turtle的交易总金额
% p* m! K) k+ Z+ slocal-reputation
8 o2 r: @9 p3 e3 C/ w( `" Tglobal-reputation
( X/ I U: u4 g6 i" v) acredibility
* J- s4 K9 g. P, P( e$ _;;评价可信度,每次交易后都需要更新& t; `1 \& q( n* u: W8 I# j
credibility-all; g" b5 l2 w2 P+ d
;;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 [- y( c; |+ j$ x) r3 ]; f
$ G- G1 o1 t1 B! 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
2 z2 r5 |1 Z! L3 z! z$ B3 vcredibility-one+ ]( i( q6 Y; T
;;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 a: R. r! s" h
global-proportion
% z) ?( A' J& T# D# K5 m' l; ncustomer3 y+ @7 k4 t' [8 i; s
customer-no
4 L8 @5 Q# L- F/ i( itrust-ok! `# b7 x7 o( }# P" J2 p
trade-record-one-len;;trade-record-one的长度
# h s' C' K4 r3 e) P]8 e2 ^" A9 y1 f
, _, x3 e% n/ l
;;setup procedure( }! g+ O) y0 I
' Q# i( g, W0 c# S+ i9 w( F3 D" B$ Vto setup( y; L0 e4 O( o* l
% `+ ]1 k' V5 o
ca
4 F2 Q u+ F6 \ R$ y0 \3 `
* r$ E/ X: F. \initialize-settings
: b" V2 F3 Y/ K1 Q) s1 _
4 A, L2 y* s( e: c$ |crt people [setup-turtles]5 ~* q" f! W/ r/ A
0 g- ~: ^$ ?/ S( E
reset-timer
# H- _, ^; H. n" C' K0 F' m7 ]! L6 Z
poll-class: E7 Z$ I% g! S) A+ P& L. W% k1 E
' t; g/ b9 t1 Y+ e& w( y$ T
setup-plots
! i, ~( X( q. v4 T+ l, Z
% e" _# w3 B3 J- p; m: J1 n+ Gdo-plots
, Q! L7 u" e+ p# t) _end
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to initialize-settings
! {& C. W6 V4 y& U
- j2 ]: |7 `6 _# X ]7 w/ p- G7 Oset global-reputation-list []# y) g; O9 H! w+ J/ Z$ o
7 ?3 c- {. t6 p Y& t
set credibility-list n-values people [0.5]+ [- v: Z2 o* {3 w
& x c) x/ \6 A. Y7 Aset honest-service 0/ u) j# s! f4 X* _& w( N
, N: G4 ]5 m1 J, k. k7 |, o
set unhonest-service 0
3 d: P" O# |1 Q! ?+ o7 U* F
8 H& I) x) I d3 O. n$ K" pset oscillation 0, G, A t% j# ~( M- M6 {1 Y
( y) q) u3 m E3 Iset rand-dynamic 0
# l3 H1 x. o9 K! wend
! N# e5 i9 S* `# r( K( k# q& B& a$ A
to setup-turtles : R; h% t& L/ E" }0 J9 ~1 u
set shape "person") }, S6 c" E8 m2 D) p
setxy random-xcor random-ycor
' x' m1 h. \( x9 C" Nset trade-record-one []
7 z( D5 S* M7 c3 y) A/ ?7 W- i( I! e+ W( u
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 U9 X c6 Q+ ?7 r( P% p
6 t2 }& C) o* `7 m: i/ V% c3 |set trade-record-current []
( }7 e/ f1 C7 `8 z! Yset credibility-receive []
) z' }7 [3 W& `. B! a- mset local-reputation 0.5
, ^- l/ o% F0 W6 J" a R. |set neighbor-total 0' t( \3 p4 N+ }1 _! W5 D: b9 v" X
set trade-times-total 0
/ q, V" z9 t3 U2 qset trade-money-total 0
. s8 X- ~0 ~5 i; [3 A% r; [% s1 xset customer nobody- R1 \6 I3 h8 A G& s! |/ \7 c m. E
set credibility-all n-values people [creat-credibility]. d7 B6 O$ ^# D' H
set credibility n-values people [-1]
: t7 l6 [# B! k/ zget-color/ U/ R( q6 h9 O% m
6 |' @' `5 Q/ C, f8 q
end
( [- w$ M* G: b) S& ~4 D7 n) c3 |8 X# v; P# _' P/ n
to-report creat-credibility
0 T8 F& n; g/ U; ?9 wreport n-values people [0.5]
4 I; T, O- U5 G. U/ `; Aend
+ r# }5 |' N8 M2 s& n+ H
2 }4 G X- J: t% Kto setup-plots
) D9 p4 M" T. N" C! p+ K S" Q
. Q' ]: ^5 l7 q4 ]( p y& `set xmax 30
3 s4 N/ a+ i9 p, V
3 z* T3 e% O# Dset ymax 1.0* k* ? L8 ]' J( I3 E2 b
- o; S2 b5 _( o! U2 Iclear-all-plots) z0 a' f4 c3 G$ F
( m* k% b& ^' n" w0 c! C& A2 Wsetup-plot1
5 z; |( S" K4 d' q q, }, a4 w+ {! S
setup-plot2+ M0 J( ^) X; P/ a8 h- c9 T
9 G9 k/ S Y1 l, ?5 x# q0 E. fsetup-plot3
( D# L( Q6 u/ J. Z7 E, Send
% J/ d g6 z3 P# h- [
: D2 V% I) ]$ M, ?: T) I;;run time procedures
. c8 W9 L/ x+ y2 @' Y3 r
; ]9 L' j, m! U6 O( [+ y. y0 v1 r; Lto go) m( J3 |2 w% L6 p& B) z* z8 n
0 m2 l" P4 }. u! a5 ]" [) `
ask turtles [do-business]1 ]4 y; m( I: T
end
- L9 v6 t8 V9 a! w) J3 e3 |2 _5 f& j5 U( t( k+ R
to do-business / r) D9 g6 d2 Q- X& o8 g
9 r9 m" [% m- U( Q3 d/ p
9 L# p2 x' u3 T+ B" F' T+ S
rt random 360
7 g8 R3 F! Q3 |3 y1 c$ X8 R p- M4 i8 A% {
fd 1
! n' O M2 Q1 t' z; ~2 l* C3 ]
) Z/ H1 m y# j2 x6 Pifelse(other turtles-here != nobody)[1 N4 Q2 h+ [& I
) k* {5 c B& h: [6 |9 x9 I3 xset customer one-of other turtles-here
/ W1 G! g5 v7 O% H% E5 D" S; B6 j7 P6 _3 N0 l% x5 [" |
;; set [customer] of customer myself
% d; ]7 d0 E) P9 C6 c
$ g. l/ j5 q. s0 w6 Lset [trade-record-one] of self item (([who] of customer) - 1)( P' [' l& u2 l+ c& e
[trade-record-all]of self
/ N( r- o2 r; Q. i% P% K2 T# \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# W/ I- b9 n/ H9 ]/ ?( B
, _7 ]4 u/ e# ]5 iset [trade-record-one] of customer item (([who] of self) - 1)
* Q }7 f; f1 _! Y [4 q0 P[trade-record-all]of customer
" |$ q4 C4 y0 O
Q! l) t% X V, Wset [trade-record-one-len] of self length [trade-record-one] of self, G/ c8 u+ m; u3 X% f
4 M2 t6 K5 n$ m: \$ jset trade-record-current( list (timer) (random money-upper-limit)): F' L( ]" Y, w, v% `1 F( U/ G
3 ?, Q+ K% R$ d/ n/ Gask self [do-trust]
% i; G4 i+ f. z* ?4 \( h! W;;先求i对j的信任度
% a8 p7 E6 A$ x" |' }; u- b1 T* h; r/ w& s: g$ @- v2 h
if ([trust-ok] of self)- a& m- c( P0 t6 `' ]
;;根据i对j的信任度来决定是否与j进行交易[
. z6 s y/ F' ?# A+ ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 o6 E, \! ~- A6 f1 F* _
% k: D$ M$ {3 T E* {6 p/ @& @7 r
[
) d' u0 O R+ k u# P! R
3 A4 {- t$ X8 ~2 F, f2 ado-trade
* ?- F6 C/ D w7 y& D% }/ j' ?0 L7 H, f* a
update-credibility-ijl1 Y& p' O6 P" r( j5 I# X7 w! g
7 m, ?4 U; X! c, W# supdate-credibility-list
1 t0 Y+ i r& p2 {; s+ U7 e* G. _) K2 T/ o% X
; l, }& B+ a5 H0 b( \6 {update-global-reputation-list
5 w" Y6 K# r) B3 F/ J' x$ M" e& ^+ o+ {) b
poll-class5 Q( K" X: \6 v0 s: _" q
" L2 V& ^! i" D I' W% t* G
get-color
) L& l9 x' f2 s! z1 ]) e3 p* @" ], {& a: P7 x. p* b
]]. C2 N( O. ~& S: P' j9 H, m
3 L& k' `- Z) v* [;;如果所得的信任度满足条件,则进行交易9 ?# u7 l N9 t! e8 C
* ~ Y5 ?3 f+ }7 K7 O[6 W0 `9 S2 r' }$ d
8 |& c! t$ |$ [4 ]5 M8 F
rt random 360
$ [$ I( R0 y4 D7 t; ]- x# N7 R( A# g
0 f' q7 I1 k/ R" I( S, Pfd 15 B l. J* P2 e3 S
' ?" B! a; B+ ~; {
]
2 o- w6 D: Q* V5 T. A: v) c |& L/ S
1 h! s$ O0 G& ?7 k6 |5 \$ x3 e/ e9 fend ?9 i8 E& d/ T: M u8 m
3 [, V \, A5 U
to do-trust $ Q( ~8 L4 R% v9 K5 p0 S! Q
set trust-ok False$ U, B% U; ^! K- k
, g6 X6 }# V4 j5 e0 j: l* r$ y2 H
let max-trade-times 0
6 _" T* m( Q9 ^5 U2 |' Zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 Z. F4 \ l8 o+ |; l
let max-trade-money 0
8 ]9 o% j( f( u2 R3 H& i5 Dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 X! n0 d% |% h: Z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 P0 _% W8 J: H4 c+ r1 Y9 G: v
! s) [% R8 {0 ~, ?4 p' D% K) ?
# ~# N- T) e5 u. ~. u' Zget-global-proportion C0 S/ R2 L7 j7 b( \& H2 k
let trust-value
& T0 }) Z) y; A* s, H. Klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
$ a* V7 y6 o* O2 y' i5 [if(trust-value > trade-trust-value); T- }+ m. W4 e+ }' s( \: A7 ^
[set trust-ok true]* j g8 k6 {7 l: x) H6 V; R& z8 Y
end
* @$ Z, F' b/ @0 \
. B1 G- z. s% V' Bto get-global-proportion3 a( ?# u( M! n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 j- \ U# E& S
[set global-proportion 0] t# c: V( T% X" x9 n+ b
[let i 0
4 w& [4 G& P9 }/ Tlet sum-money 0
& S/ o9 o: f6 }: J5 w+ E2 X: ^( }while[ i < people]0 E3 n3 B6 B5 C
[# m/ z; ?: ` A& W o
if( length (item i
4 e# a3 C E0 z L6 p1 c7 n! R/ z/ @[trade-record-all] of customer) > 3 )- t4 u" y0 v" J
[! Y7 L" u7 b$ Q8 i( V' Y8 S) o1 w
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 N, Y1 c) O* k4 A! f
]
9 w; Z' v: m" C2 Q]
4 o5 @1 U, @6 P' ~8 o' Dlet j 0
! f3 W" ~/ u) Qlet note 0
3 a. O5 ?5 N- W0 bwhile[ j < people]6 h! J7 }. x5 U- |1 j+ s. k
[
: @5 A6 V6 j+ w2 pif( length (item i
6 V6 v2 j- t7 X[trade-record-all] of customer) > 3 )
( B6 [9 G% s6 c ]; M2 r3 Z g[/ L9 A, y! l7 L8 _5 z" ?/ Z
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% a! m8 e" L' j% q/ B& V' P' ?
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]9 y* `% c6 z% a5 {% N$ s
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 @* w# J7 n! e, P! _4 g]
2 `. g8 @# e: Z1 L]
2 k* O S4 n, v- Zset global-proportion note9 L$ B6 |* @+ g- e0 d
]- k" I1 e* ~3 C/ ]
end7 q. m( ?& }: y) M
F, y" }7 F/ O* a0 c* I) f1 `to do-trade
3 |3 N. F( s+ n;;这个过程实际上是给双方作出评价的过程
8 I. } W) ]9 W! nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: q9 V: X) W- q2 a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" R' D M- @9 J% d; N) l6 T I
set trade-record-current lput(timer) trade-record-current
~+ k3 p* W9 n* d7 F;;评价时间! Z, B! s( m/ I3 T
ask myself [
* k! v9 E3 W! H7 N ]update-local-reputation$ i, F1 r( n# _8 `; {3 u
set trade-record-current lput([local-reputation] of myself) trade-record-current& r* O" q4 o I
]
7 v! V' d6 o8 q9 ~; \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself l8 c3 V/ E, l" }! y
;;将此次交易的记录加入到trade-record-one中
8 c1 _! ~4 M9 nset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 R' [; m! r8 a5 O
let note (item 2 trade-record-current )3 T4 N1 T" c2 ]& S" q3 Q& Q( c
set trade-record-current
$ L U) y) a+ J2 [. o( b$ ](replace-item 2 trade-record-current (item 3 trade-record-current))
/ i0 @. W8 d5 U ^- A9 K) fset trade-record-current
4 Z$ x0 }, T# d6 A(replace-item 3 trade-record-current note)6 P# d% Z- [5 Q6 Y% l
& {, s# d* I: \/ T, t) q7 d
! t5 o, @0 w: r% X: hask customer [" E1 N9 b o5 @( Z- l5 r! b4 A& {
update-local-reputation* [7 J. m8 a: O
set trade-record-current4 A/ ^. U O: ^0 g
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. Z! H8 X: j5 v- Z5 e]3 S8 U; Q' q2 X
' d0 l/ e; C4 V" M% M& @
; D. E# Y7 I8 V( m7 _: Kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% Z: _; m6 B) z6 f* l% c' Q7 k
" N B" N8 P1 H- M$ M- z, Wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& C7 G$ B+ A- ~. I+ t;;将此次交易的记录加入到customer的trade-record-all中
% G0 b% b' k8 a" S; \; x0 {end- V& W4 \0 }% l2 _- U) n
( C6 Q( q! G+ ]" {) Ato update-local-reputation: J7 V* s/ ?1 I2 R' g4 S1 }
set [trade-record-one-len] of myself length [trade-record-one] of myself" A! c; J- F/ A- K- q
' D9 K. k: a& h: @0 X8 X O" c- p5 G/ O2 }* s$ q
;;if [trade-record-one-len] of myself > 3
1 N1 Z8 A- D4 yupdate-neighbor-total4 ^" A3 S1 {1 L# s; l
;;更新邻居节点的数目,在此进行1 M$ [+ T2 B3 ?
let i 39 l3 H0 t& F) F& k; a
let sum-time 0
* J2 w* Y) ]+ ?while[i < [trade-record-one-len] of myself]% g. h2 H1 t6 |
[
( ]" Z$ G; m" {# A& jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ s Z& I; m: ]. U. F% ^9 p2 V3 eset i4 l* ^8 X7 V& J
( i + 1)9 h* D8 d: H! x p! q- m" F1 ]+ {
]+ ?6 c. Y9 s. s( j" C6 @ N/ \' ]
let j 3
& S/ }% Z: x8 g; K! |: Y! z8 Ilet sum-money 0
. q* x' ]0 ?+ @" A. rwhile[j < [trade-record-one-len] of myself]
1 A; H& J% U% i$ s* M[9 v9 p" ?0 q0 u7 _& \9 y1 V) ]
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 J* w6 b3 X. A1 P9 L7 Kset j
/ H3 D! M5 f" _& G( j + 1)6 m% g- F4 F }& ~. y
]
+ ?! C$ v/ s2 plet k 3; c+ p9 M+ v/ ?* w( e
let power 0
5 `! j, c; @! G9 K; |let local 0
9 x. G" u0 U* [# H; y( x2 Owhile [k <[trade-record-one-len] of myself]
+ L. i% l2 k: X1 n/ l8 x[; A; U/ Q6 _2 `, j; q7 s1 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) * T$ b+ t2 O% I+ M
set k (k + 1)( |6 c8 k l& v
]
2 B& i0 E g3 g% F- tset [local-reputation] of myself (local)" _3 ^% a* B( K0 [# Q* Z. P6 l
end
w& \. D( k' _" }4 h' w; R; V: U% u# K E/ w7 u2 N
to update-neighbor-total
# ?* V. ^& s2 `5 C5 k' m. U/ j6 z- S% z, O: P, \7 v& n$ s
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% `- `; U. z. u# g6 n& _+ E
5 S3 D1 z6 ]7 E! F
* ]# S$ o2 o- u8 {3 ]/ |end% t/ y1 [ c v# |2 g: h
- q3 l$ B# ^: I" z( t
to update-credibility-ijl
4 N* B( G: A; ?4 H3 \2 K+ U1 V) w4 \+ N# n# M
;;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。0 x7 _) k+ p* N' N# ?
let l 0
5 ?: k; E8 F* G7 b6 M2 r9 Wwhile[ l < people ]
1 i$ y! M3 b) {2 y;;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4 g9 Y7 C7 c6 ]4 v& } ^
[; k. A! V" c" O3 e, a" @7 [6 L
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; C! d& o3 b9 C' |if (trade-record-one-j-l-len > 3)
9 u4 t6 ], E5 p6 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) g5 ^8 Y2 z& m2 y+ w. S) Z! l0 J) ], W
let i 3+ Z) M" w) f! W) Q
let sum-time 0
2 o9 k; O# U( x- S# o' z: D8 Mwhile[i < trade-record-one-len]8 f0 M: }9 _1 i
[& X8 ] k' \" |: H) a0 _
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 [( K" c) h+ B1 S
set i
# m V! ?/ @0 \0 [' t" f1 G( i + 1)
2 X- F: T# w5 }5 _* {0 v] t# J0 H0 N2 s
let credibility-i-j-l 0
' Z; _! r5 d! q9 o! ^* g9 H;;i评价(j对jl的评价)7 @7 E! [" @' y6 Z9 B2 Y
let j 3
6 ^( R0 b5 p( L% C5 O Tlet k 4
1 b$ B* R0 H$ c6 [: lwhile[j < trade-record-one-len]' f0 K- L( U! l/ T6 y% ]
[% d8 K5 t' w# s" h3 U0 E
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
2 M. E- j7 s+ n+ k/ c- Z( Lset 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)
3 c }. C! `( ~+ D& k/ _2 dset j
- y& x, r; M4 ]5 g( j + 1)
) V6 F3 I% c z3 @: @3 G]3 P, t7 U3 l% [9 u, M, P: c
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 )): M; B- A( }+ ^1 z6 |* c% F! z
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 w: N" n, j" B4 L% `$ V/ q8 V& M- N
;;及时更新i对l的评价质量的评价( f+ p- `8 O) C0 j* x' d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 S$ G: f$ G3 y f; R( f- A) x
set l (l + 1)+ n$ M4 }+ m% d" ]6 |; c) X7 S. m
]( y6 w7 F, y$ w* ^/ P
end. C, r3 }& B* J# s6 c2 [
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to update-credibility-list$ U2 r! Y- b' O. l
let i 00 p/ H5 l& L7 c0 h& j) V, B
while[i < people]
: B9 M3 P7 e/ p- H4 G[. ~* ?. ^) f. U. F: d& W+ E0 ?
let j 0
6 V5 ~9 K; a3 d: b$ @/ u5 ^let note 0. t! Q: D. M0 Q; k* @; Q
let k 0' v" M5 _# l0 @ x2 T( m" v+ ]
;;计作出过评价的邻居节点的数目7 v8 P3 `7 e6 f) C
while[j < people]5 ~5 K) p ^5 p+ A
[
1 M R9 w |& x3 C- I* u. o& e' `if (item j( [credibility] of turtle (i + 1)) != -1)/ g% `: u3 G. u( E) N' s( P: e
;;判断是否给本turtle的评价质量做出过评价的节点
+ A! f/ H7 D z( k% n& `[set note (note + item j ([credibility]of turtle (i + 1)))
6 G8 a2 _6 U$ ^$ }) Q, K' U+ V1 b;;*(exp (-(people - 2)))/(people - 2))]/ h$ k j6 c6 `: I) `
set k (k + 1). s) a, F& j$ W) C
]" r8 }8 W& p# }% @ F4 P
set j (j + 1)
2 I' D( n& Q2 L]
6 K8 b) u& h0 _% S2 {1 k4 lset note (note *(exp (- (1 / k)))/ k)
2 [) u0 Q, z/ g/ ~# kset credibility-list (replace-item i credibility-list note) {& R1 P7 x- D @! _' h/ Q* W6 F$ [
set i (i + 1)
2 G% b3 V. W$ } c4 J]5 j {+ E/ B8 b2 |) y
end/ M: x" o) D! `$ j4 r0 P
+ |, k5 O* z$ C& K2 M$ G# {, ?
to update-global-reputation-list, S1 j: Z: A% c
let j 0: I" d$ m* X/ }9 P* J
while[j < people]
9 {. R+ h4 d) x0 t9 k[) Z' V7 O4 {7 ~3 S0 y
let new 0" K V6 ?/ L' i5 r Y
;;暂存新的一个全局声誉' k+ B1 f8 I) X& Q. P& z. v
let i 0/ u: n; j/ H# F4 ]/ b7 m
let sum-money 00 H! l3 Q6 I6 m1 v+ R) Z" }+ j T
let credibility-money 0" z' C9 ~' r" _- K6 g8 {
while [i < people]5 M# Z0 q, Y: \) Q
[. v7 B4 i: S _7 m7 `
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) q% a! j8 Z1 tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). p+ Y( x! |. ~
set i (i + 1)% A: ]8 | `6 N
], E( H6 C3 [- \+ p1 u% A5 }
let k 0
: P% A7 F$ `: [ Ilet new1 0
W& [3 x1 {: v2 H4 Cwhile [k < people]
4 x1 f8 S) \% S& z1 g, g9 s6 |" b$ G[$ _& E1 d ^& U/ p9 {* x, ?& z- E k
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)+ Q* n: C. {' ^ _
set k (k + 1)! }& }. P9 l/ s8 M, o* R, M6 q5 f
]
2 \( q* P7 Z2 I4 O5 `set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
1 S% V8 {2 ?; v7 j! Q& Cset global-reputation-list (replace-item j global-reputation-list new)
, D4 O: u8 k! j8 ? {set j (j + 1)
3 D3 w4 K, P. f3 h, P]
. r+ l# z% T" k+ \+ d2 Y* Uend
]8 m6 |" F: l1 G& L7 Z* h1 C; r& ~' W7 @ H4 O- K# `$ H% D
0 x, z0 V3 ^5 W+ K( \7 r! v3 B
3 @, |# u+ S, N- w/ ^- d \to get-color
7 r9 O( r1 e% q$ I! s8 ?) D) |# e& P4 x* l
5 I) L+ p- b/ _, _# I0 y0 ?set color blue
. K7 u4 R8 e; U9 U G% r2 `: M8 Lend
0 x7 G" X5 V* {2 `) g' w+ h, [8 ]. ?. z, {7 N
to poll-class% c. R# p6 `! s0 ~8 `* v1 o
end
1 k- P4 h8 D' F7 m3 L9 C7 D* v* Q+ D7 I$ O: Q- z
to setup-plot1
; U T- q6 l8 d1 E) V
. I2 l* e/ C! r. V5 Nset-current-plot "Trends-of-Local-reputation"' n. E3 b! B ^* D2 B
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set-plot-x-range 0 xmax
8 @* W( s; q; |& P; H/ ^9 o2 o+ o; W1 r
4 t! ]" x v# V, s) c0 o( e# Tset-plot-y-range 0.0 ymax9 {* V. U" [2 z
end
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/ i) |+ ?2 b; j* h1 ^0 J5 R: o2 v! f! Lto setup-plot2+ z* n2 V3 ?8 ^ @
5 h+ a7 |4 S$ w, p* o# zset-current-plot "Trends-of-global-reputation", S: p& R- ]5 T4 B t
- A2 O" q; G+ O) e9 v* I9 G3 u2 J
set-plot-x-range 0 xmax5 v% R7 M; K X& h" V( ]
/ N. C" @& [3 }8 c% _
set-plot-y-range 0.0 ymax. D; I R7 D8 V3 G+ j% G$ |4 N
end
0 Y, i: f& c% {; o0 |; ^% Z% W9 n; D( }
to setup-plot3
8 G! ?; i. }4 X/ m
% ~2 B' Y% R# n+ D1 Eset-current-plot "Trends-of-credibility"2 [' E+ w/ j" r: j
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set-plot-x-range 0 xmax
; l" N& H b. m
6 ]9 n5 c& N; c3 W& m7 ^set-plot-y-range 0.0 ymax
5 ^0 `* k* j+ R& ]" y& nend; c/ x. {6 |6 V$ p) {$ W
4 m, \3 i3 H8 O) p5 t; i: Z8 _
to do-plots6 h- u5 x6 _& S: `- m# T2 v
set-current-plot "Trends-of-Local-reputation"
: Z& w* g5 c/ t4 R$ C3 p* {set-current-plot-pen "Honest service"( r& y+ O: \+ T' Q9 N. Q1 } t
end1 M# `, v# Q2 f3 F8 |
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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