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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0 V. E) d4 U3 A( L- k
globals[# W8 ]* M) A" U. B' ^
xmax
- l% L3 G! @. p* dymax4 r, g5 h: m; G' [9 j
global-reputation-list
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. a n5 Q6 ~9 r9 X% v# K; H6 V' h;;每一个turtle的全局声誉都存在此LIST中* G V* K8 O% }+ m* ?
credibility-list/ X2 h5 g: k: E5 {% F
;;每一个turtle的评价可信度
# A) y A$ |* R4 zhonest-service
4 x- s+ g/ `- G" W1 C+ I/ r8 B# Bunhonest-service
" \# j9 U2 s2 g7 W8 f0 a ~; Moscillation% a' R$ o+ i) e( D n' d- O
rand-dynamic
* f8 T% U$ t# a! x( O! i]
4 h. }5 H. ~- x8 i3 j1 d* Q* r
# `* B0 F% w% X/ F% K% f. Jturtles-own[
7 J5 x7 e" W/ t1 }trade-record-all8 j }/ k6 W# P1 O2 n" O) R
;;a list of lists,由trade-record-one组成
! A S2 r7 @* ^+ k1 Strade-record-one0 F5 Q: m0 b0 [2 m8 G
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 {- }8 K& c2 d" \& I
5 a' i; E2 i1 w( 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]]* x; C6 F9 q7 J! s
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]
, C& R- _! N% M, qcredibility-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list7 e% y& b$ Z- |" a) y4 E
neighbor-total
: b% a' ~+ K9 c* @# };;记录该turtle的邻居节点的数目
: \9 {8 I3 F8 @4 z' j0 Jtrade-time
3 L0 N: y+ I3 h4 ?;;当前发生交易的turtle的交易时间- `" D3 p5 e+ u2 _1 m
appraise-give+ L; O+ a+ V# ~8 c: f
;;当前发生交易时给出的评价5 y" q5 \& D" ?2 `' J
appraise-receive
3 @ e0 H% |+ K) Y8 J;;当前发生交易时收到的评价
- g8 a' C; Z$ h1 a0 E# Uappraise-time
) w3 f" t Q* w1 U( r; _# g& i;;当前发生交易时的评价时间
9 p" W+ q; R V2 {+ e% e" Zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉! @+ X+ K4 ~/ p8 M% ?
trade-times-total
3 ^: g X) J/ W5 }! u7 \;;与当前turtle的交易总次数! Q \7 W, G+ B7 _+ o
trade-money-total
Q. @; T9 r; S! o. ?. I) A- l;;与当前turtle的交易总金额
/ Q7 g% u0 r1 x9 d' Vlocal-reputation1 d, `1 x& z. {) S! t0 v) u6 V
global-reputation4 h% Z4 s# Z+ h1 E7 U% b) }0 N
credibility7 x1 K" a9 V& D( h& ~, a. ?
;;评价可信度,每次交易后都需要更新
& i% I. t7 I/ }2 |1 \/ ]credibility-all6 V f6 L" S) A7 N' v0 u8 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
" h2 S+ ?2 [/ i. _
- L& |3 z9 F3 z8 u# v6 z% _;;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! v, B2 R5 d/ i u4 [$ Q( N! ^& G
credibility-one/ r2 c, X! E' t4 c
;;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
' {' r- }/ ]6 y# Kglobal-proportion
8 b8 z/ ^: q3 r5 C% bcustomer
2 S2 n2 P5 ^1 ]/ r# bcustomer-no$ P' Y3 S, B" U# x( v, i$ Z
trust-ok- ] O0 @7 e6 s# g: K0 g
trade-record-one-len;;trade-record-one的长度
% \4 M/ z3 K7 x% f& d6 j0 R8 w- J]
4 E% p! @( X5 g/ V3 Z
$ n/ D( R N5 Q% ~6 p;;setup procedure9 w) K7 c! U, @0 z. n
9 i! s* k2 g' }. T/ f: {to setup
3 a' G l* D$ ~0 b# p" }" k' u1 W# b( ^: E8 f, d+ _1 `- B
ca
/ P0 d* m0 h& X
- H8 Z# [! i @initialize-settings
7 F$ p$ ]; Z) x2 \/ f% a3 R# l
& V0 t7 g) ~8 ]! Dcrt people [setup-turtles]4 Y# r" s2 w" |9 k3 c8 j
0 D, s' l, h0 r( t
reset-timer
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poll-class
1 Z' N2 p1 W. {: g
0 ~+ t) e* g5 D1 |* c* o2 bsetup-plots9 b5 U/ d, N' G# X4 R$ x! m
& k0 R1 i! s, e# k3 L( r3 {do-plots( b1 x) A; W% i0 J9 l- U
end
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to initialize-settings' P# A7 G1 z9 \+ W7 K1 O
' c$ I$ O* d9 i/ N( }; xset global-reputation-list []/ I2 b- o( f( M; J# C
) R- v1 m r f3 N, W( Kset credibility-list n-values people [0.5]3 f- }- Q8 T6 t- ]5 O d
3 Q5 ?( } X- {1 R% y# q* Pset honest-service 0
6 [5 y, e7 ^( s8 V. Q5 w: ~/ p$ o
: g* h5 U; Z; y. s; |# \" R- y# Q" s, {set unhonest-service 0
" t3 E, J( v1 v7 t C: j: \9 v$ J4 c
set oscillation 0- j4 @. E2 F2 v4 y4 x/ |
3 ?9 r/ }( |1 p- u# |( Wset rand-dynamic 0# L( x+ p. `3 q# m4 r
end( W+ \6 {7 ]9 J8 ?. {# N
" ~- y: `0 ^$ X+ s/ h; ^; Kto setup-turtles
6 p3 Q5 g! K5 n+ P# @5 Lset shape "person"
3 d g" q6 u- A4 e8 r& N$ ^setxy random-xcor random-ycor6 y) T% v( H" b" B
set trade-record-one []
9 i' _! p+ F) j. s* B
5 B# c( J7 t( G1 g' B- }set trade-record-all n-values people [(list (? + 1) 0 0)]
8 ?( f Z, p* e; G3 B
+ Y, d% C6 r( yset trade-record-current []1 Z' G" p. }& \$ R
set credibility-receive []
9 ]1 [# `" b! d p6 g5 @set local-reputation 0.5- Q7 D, q/ A& |1 ?
set neighbor-total 0
S% i) `2 d; U3 eset trade-times-total 0
5 Y2 r# W4 m2 E3 J/ ~set trade-money-total 07 u4 D* A+ t$ |8 O
set customer nobody. O4 V, z5 T8 `8 ~( D5 E0 u9 X% G6 v
set credibility-all n-values people [creat-credibility]
4 o) @" Q9 K2 S* nset credibility n-values people [-1]
+ C: j2 c8 U2 J7 O4 pget-color
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end U8 o, m$ W$ _" B
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to-report creat-credibility
/ I! K0 \! f5 k. C% s+ k7 @2 ureport n-values people [0.5]& p8 U1 D6 p* q0 \) J$ O- L
end- G5 W7 X! g6 O# b/ T! n; }
$ W/ V# N" W/ \ e+ w! Cto setup-plots d% N' K. b5 [" g$ U6 E- U0 J
+ G+ q- x7 Y6 h# Y& _set xmax 30; g S: V4 M0 b) H) ]
& R8 d! t4 t8 ?6 R4 d+ v
set ymax 1.0
' F J- j- X* @+ u B' h! _- o% k- C3 }- Y
clear-all-plots
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setup-plot12 _/ U& n `. g
4 G2 f$ I! u( v- U4 `setup-plot24 N) s3 d5 i9 z% Q% `0 c
5 O* X) [ _: i* m/ ]4 a0 nsetup-plot3
% \3 {3 T- R3 G$ l8 Qend
* N# t/ N8 R9 ^: Q
9 h, a1 ?: T" h# X# P. g;;run time procedures
|! g& }; h0 |! e1 C- p8 \9 |9 P9 p1 i- m: ^. q5 V
to go& K- _ n6 x" t1 {5 {4 r
7 C) d& A' a! C$ P, P$ r1 [, pask turtles [do-business]
# a& c9 `$ L9 d% mend
9 R6 G* s5 e2 d; t* `$ G9 O1 h6 S8 r8 G: ~5 J/ c: U* Y- o
to do-business ' _. w F, [) w8 l5 B
1 L" ^6 Y4 t4 H% m
9 z! ]$ |7 W# l# V# x3 ? C0 Q
rt random 360/ f+ x5 [0 Y. S( p# H% g/ F' L/ Z
+ c2 O& T8 _1 g2 M* D
fd 1
$ J. ~- s8 a; z. U4 _- o4 G* ?1 |0 F$ O- N- T L6 a; c
ifelse(other turtles-here != nobody)[; O: b( w) _# v, p8 z
+ ^7 D1 d$ P0 h$ p! ?- n/ uset customer one-of other turtles-here
+ o# x. t8 f, m6 |
5 C1 J# b j) s7 o3 V' N;; set [customer] of customer myself
$ b' E) C; n: i1 G4 ]8 x8 r
& k% B& S/ Q$ w) H- L G, `& uset [trade-record-one] of self item (([who] of customer) - 1)( j9 s( y( l0 Z- U! b, R: H, C
[trade-record-all]of self6 s+ G6 S8 q# F9 i( R1 j
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) ~& n/ E9 M4 b. M
% e$ x& P6 ?1 R" aset [trade-record-one] of customer item (([who] of self) - 1)
* s" P% V. S& L/ [, I$ E[trade-record-all]of customer) W$ ]4 {6 S$ \, l7 Z
! X% i7 b" I1 G
set [trade-record-one-len] of self length [trade-record-one] of self8 \+ R; q1 w6 r5 T
& L8 Z3 R; s' y* F; @) m
set trade-record-current( list (timer) (random money-upper-limit))9 \, M9 {# S* ^7 U/ n4 r4 U( V
2 C' _, S2 T& [4 C- T) [+ xask self [do-trust]. m- J7 W! _9 Q/ Y% b6 j0 q p4 [+ L
;;先求i对j的信任度8 F- H. j/ `3 @5 |8 W9 Z; G6 X
9 o, _% {" f! w9 O8 pif ([trust-ok] of self)
& S4 l' S0 D! ^0 {1 t" W' I) c;;根据i对j的信任度来决定是否与j进行交易[
: x; \$ g& e0 V: fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
+ m7 F- `, o2 ?7 X5 W" a' z0 q& D1 W* \' Z7 c: S1 d
do-trade
) Z7 C: K3 ?6 V# ]+ r+ @/ i
3 E) }8 y2 a9 F/ Xupdate-credibility-ijl
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update-credibility-list
: \" O, b- u& x3 g x( y) O8 s; S8 e" O6 @7 G8 S
) d( L! M9 [7 z* A& R5 W) _update-global-reputation-list
Y! G2 n, f( W& i9 g1 k. D# j9 t7 \/ y, [3 m" s
poll-class
8 i) D- J/ N7 l3 c$ G Y
) S' h, i# V4 i4 o0 I4 \get-color$ t( X, D. U5 O* A7 ]- a6 p+ s( [
: Y3 s9 s4 n# i3 Z k6 Z8 D) U
]]
7 x" `% e# {) L! d
4 a9 `6 B ?: `& h+ @* [. r) E2 };;如果所得的信任度满足条件,则进行交易. A" G( E! x" w, |
) [, o5 t [6 P6 z# r" n
[
( i% k- I1 Z! F3 ?. ~) o
- b+ X @0 p. O% }0 l3 ~rt random 360
3 j$ A. B0 J5 p( p, p
1 R0 v9 J6 f7 ?' j1 Rfd 1
2 f/ m$ S2 Z% B ]8 C; i) u/ z8 U, W. h! s5 n. b- v7 T2 U9 L
], D' I, {9 U% @: T2 Y6 C' o4 F( ^% W
1 S! T4 l" W6 ^) H7 H/ i- qend/ N: p0 |4 A6 ^5 _5 K
- j5 Z- ]+ r! e8 l3 B+ ~% O9 Oto do-trust
2 O+ [& b1 a( D, ] Iset trust-ok False, Z5 t4 F; R6 K5 |/ C$ f
c: J* Z# r9 ?) i& W3 ^
0 w) c5 v, F0 u+ W2 F" T" {; \let max-trade-times 0 u- i3 g$ M" ^+ E
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 q$ e/ d8 `6 d1 H0 nlet max-trade-money 0- @3 X/ F% v+ n/ L8 j2 \5 K0 O
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: k/ N# u) z f2 H7 o# S* t d
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
8 H, s0 w* e. ?' I- v& k8 C3 h; }9 j
' x5 W. q8 R1 w5 m4 h/ I& yget-global-proportion* U$ E% J. S) V, u9 a `/ f
let trust-value. X0 e Z0 j9 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)! G: ?3 E8 y9 E, i3 A9 E" T* t
if(trust-value > trade-trust-value)
, V' t$ y- d( c8 @4 c[set trust-ok true]
6 U% K6 h9 ]* bend0 I( U, m. M) `. x
4 e: O3 f; `& i7 L* \' i2 a; ito get-global-proportion
. B6 C7 M5 y/ e1 F) m2 v% F Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- P+ L q& x" r& b5 e* Q# C$ M8 G% n
[set global-proportion 0]
/ h) u$ s, ^7 b# ^% W[let i 0
" \; r% k. J% ^2 u; t9 [1 I3 h$ Xlet sum-money 0( I/ L) X% \. d0 X
while[ i < people]
" E9 \: ~& m( U7 t& r* q4 z[
; f: m) A% d9 G5 b0 Kif( length (item i
* L! X! \! T8 P[trade-record-all] of customer) > 3 ); H3 M/ K" }* `
[( O ] D1 `* h6 ~5 b" ` f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 K% j( l7 E/ i p( T+ K3 C]# Q' |1 l9 E6 D8 R8 V( H
]: |3 C1 e- ], A4 `
let j 0
& l5 J, p4 K# w' {let note 0$ M; z+ Z% l* w/ p
while[ j < people]
- }% Z0 s- z& s% C n! W$ X- `6 `[
2 K9 D: d f, Y$ t& }if( length (item i
; [$ j- L2 }$ p1 F0 n[trade-record-all] of customer) > 3 )/ T: B8 U2 M& w+ }, _
[6 W6 c# J. o; e/ ?. Y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" Q. B1 j, {" a8 l* U[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 o" ^+ _" ^- a( V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' w3 `5 ]0 r) g2 g! ~' o7 s]
$ r- V( ^* x6 I5 x* D8 h]* Y6 B% B" r# [- o3 o
set global-proportion note
( e2 a% x: ^( l3 p]
+ k/ |4 `* Q; @end
' P8 Z. O7 H- @+ |& [, s z( t( j3 U1 A+ O' M% p( q& Y6 t9 f
to do-trade% [* R* F& s( W3 ?3 [: v0 p$ a
;;这个过程实际上是给双方作出评价的过程/ x! {' y6 S% ~2 E( X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 @& H6 ?& U4 rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; M1 p6 G/ D% [4 f6 Y) \" s
set trade-record-current lput(timer) trade-record-current
" T) f* w6 Q: t+ Z0 N9 O* l6 v;;评价时间/ L% w, H; W: d1 z/ G% v
ask myself [
1 u, ~7 J3 p% X. Tupdate-local-reputation
8 p' u. v2 S9 \- W5 U) _set trade-record-current lput([local-reputation] of myself) trade-record-current* w4 t! O# P: X( V/ h
]! p" |, @. ]( V% z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ a+ H/ j1 W* c;;将此次交易的记录加入到trade-record-one中
& y0 r0 J a, O4 O wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 I, G( z' ~- \# w- \+ ? H" M7 w
let note (item 2 trade-record-current )
u% y3 N/ d( U" Lset trade-record-current1 {6 b" A8 y& F" s2 f' J5 ]
(replace-item 2 trade-record-current (item 3 trade-record-current)); \, O( o: E+ q$ ?
set trade-record-current, q% f. Q0 A4 U& i
(replace-item 3 trade-record-current note)
& w6 f5 F3 J/ `1 |6 G2 Y0 |6 u9 k! y( J: c2 \3 n# I
9 {5 _. G4 _/ L
ask customer [8 a+ t+ s1 e3 `5 M
update-local-reputation) C/ x9 N/ F+ c) [ q7 n
set trade-record-current9 g& ]/ I; ^/ u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( W) w7 _2 R2 w2 k+ B* |6 Q" V! k]
0 H& v# \1 X4 A6 ?# q3 p
, `0 V a( {& K- _. {
* A& u: w& t4 Z& M" u4 Zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ P" P/ p1 I% N( B C! O% O) L1 X$ c( x( C* J5 r
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; T/ m- `% q2 `! s3 w4 S;;将此次交易的记录加入到customer的trade-record-all中( E3 B# `4 D$ {% c' V1 M
end
# i4 H5 O- Y* L$ R" f
' O$ x8 F# `. w' m: Lto update-local-reputation( a0 r" d8 U, f$ d3 _
set [trade-record-one-len] of myself length [trade-record-one] of myself8 i1 p2 w, L" A% L9 Z# _1 X
0 x$ \5 ? j0 j. t5 s
1 B4 r) k& {6 V; d, g& Y' U/ R;;if [trade-record-one-len] of myself > 3
+ P: K3 \6 ^; A+ d0 \4 O# fupdate-neighbor-total
3 x+ W" m' ], B+ X' v& g;;更新邻居节点的数目,在此进行
, Q8 n' N1 H1 Ilet i 3
5 s, |8 m7 `. e* e/ o( @( e1 Xlet sum-time 0
! l# J% \' P. s0 Z8 M+ I# y5 @* xwhile[i < [trade-record-one-len] of myself], l0 y% @) Z4 S. X' u9 A( T
[+ Y1 b1 Y6 a2 \( C
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% g/ v# c# @9 h+ o8 Y
set i& t! I/ f, X/ T0 P6 z( U
( i + 1)
8 e: j1 b: o" ]]
' N/ F: N9 ?/ M3 |$ F7 slet j 3
* i0 L: l; k E7 |let sum-money 0
& l" c% z0 w1 E3 Dwhile[j < [trade-record-one-len] of myself]
3 @$ a$ q9 o& [' _( Y6 ~) O[$ ~( T9 ?6 c6 M. T1 A$ j
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)
/ z* W) N+ O d( J% k. zset j8 N* [' i, g* m Z I" L; m
( j + 1)1 v, E( M* O0 q. R6 a
]. @7 L* u7 Z. c* E/ N3 ?
let k 3
7 {$ y9 p; s+ ]& u3 ?5 U2 Clet power 0
4 A3 l/ |4 m, E4 D7 [* E" Olet local 0# F4 N" F! |) {+ r# C5 A
while [k <[trade-record-one-len] of myself]) Z' b) @* p( S' g, K z
[2 u, s* \! ~; X" e) t4 p+ v
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)
5 ?. J9 c7 y# F! S" f: R5 a. e; cset k (k + 1)0 V5 M+ c, d Q
]
" s. a! q& j- @, f$ rset [local-reputation] of myself (local)
+ W- a8 l: Y4 e5 U8 Wend
( X/ ]" H }+ S8 @6 k# D
+ I; s, \5 Y# [2 Bto update-neighbor-total( L3 L1 Y7 v( a5 r
/ H2 P9 ^; J, m6 u+ p9 U& @' S
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; L1 k+ h% m5 P8 {7 ?
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K- S9 ~# k: v& x3 r
end
+ ^' G0 U# @/ q+ ^
U; B5 Y5 A* q& a* E) Y: Kto update-credibility-ijl . t9 y0 Y5 }# @$ k% b. g
! q7 L, O0 w! s0 G% J3 m! O3 r5 F
;;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* F3 ]* O& b
let l 02 i* ?* K$ B' Y1 h; H% @! U
while[ l < people ]4 T. {* g3 C, K* G/ D/ R* g8 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+ |8 @' Z; f3 O: m: ^
[) K+ ?- G- Z. ~' i0 _0 a0 p0 v
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)$ }- A ^ D& X0 W6 l
if (trade-record-one-j-l-len > 3)% J# N4 P. p6 j+ O9 j9 r; 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
) i" G) Z$ D( o: F2 J4 e( `let i 3" M: K- J* e4 G6 |% m$ z u
let sum-time 0
3 {& o% `2 ^8 S! \ Pwhile[i < trade-record-one-len]$ n O/ N% P( k0 X1 i% V9 A
[9 A, q. O2 v, y# _; g, {% |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, K) N9 m' F- u3 I' z) v" s0 sset i
, u- g) q" ]$ M% e( J( i + 1)
% i7 k, ]) m# g, F* z% {5 e]- D1 t x0 J7 j! G
let credibility-i-j-l 0
9 F- Q, @4 \6 f! };;i评价(j对jl的评价). L1 n& ^3 n4 B+ g. [5 N
let j 3# _( R3 J, S) L1 e& C
let k 4: N6 D$ U! l* |7 N
while[j < trade-record-one-len]4 G2 p+ `+ c: {4 R4 M; ]4 ~% D
[6 B) u6 F$ O1 h) q
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
9 D4 t# l5 s- i, P' r4 F+ e6 E& N% tset 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)
! ]# B+ I: `3 M& a2 `' K1 ]% cset j9 R1 w& j- m+ g3 p( S; `
( j + 1)
' F. o3 g! |5 E! K! g! Z; c]
d4 C- [7 p9 D4 u! ^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 ))
0 ^5 {. j$ z2 j3 F6 D1 p) D" s& T! d; `; F# d; u
0 x$ k' L4 A9 g+ u$ [' r
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 V* _; _* V2 ]8 ]! i4 T; C;;及时更新i对l的评价质量的评价0 p5 Y- N5 R1 r/ [4 u9 y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 C3 J! ^# G$ E" Vset l (l + 1)
! X& |8 ~6 o$ P( k3 u* ~4 N) V]
8 ` [# i6 w0 ]" p+ ~! @# }end+ E6 V3 ]; n! c( y8 R
1 \# z4 l( U7 E7 oto update-credibility-list
3 w/ M0 ?5 a0 x+ a* `let i 0
1 o; P8 C& m# w5 \+ r9 Pwhile[i < people]+ P& x( `- q, n
[
! `% b. `- k# j" Plet j 0- B8 }7 \# ~" {3 S) _. k0 ^
let note 04 t# {( M6 [ O( ]
let k 02 r, p; @ d* a; j
;;计作出过评价的邻居节点的数目
' \( T0 _- g- [; lwhile[j < people] b( ~" j# J2 |2 a: a8 V5 K$ j
[
/ e% P" ?4 i( \# q$ ]" bif (item j( [credibility] of turtle (i + 1)) != -1)) S- P9 L7 r& j) G- L2 b) |0 f
;;判断是否给本turtle的评价质量做出过评价的节点
' F8 d4 ?- C+ f+ C$ a4 x[set note (note + item j ([credibility]of turtle (i + 1)))
: C& g( ^" s5 M. j; Z2 @' {;;*(exp (-(people - 2)))/(people - 2))]# S r' g( Z/ T0 O: R6 _$ l
set k (k + 1)
6 d/ |0 r1 |6 O/ Q- C6 w2 Z]( e2 B) q4 ~# Y6 ~. h$ V" _
set j (j + 1)
& d6 x: Y- [- e" C) j]% r5 m, S% ^; x, s7 v4 u) {! O
set note (note *(exp (- (1 / k)))/ k)
5 [( v* @. r. Z! b9 X( uset credibility-list (replace-item i credibility-list note)2 E8 z/ b! k3 d4 |/ h1 S
set i (i + 1)
1 w; [4 E3 g& X8 N' ]& j) r) i]
6 A! c! Q! I1 K0 c. A" d; Jend
w. a: s; _4 B5 k2 W0 @: [/ m
/ G G! T6 i) @7 s j. j. uto update-global-reputation-list; R9 N, ] l& L$ Y' K4 F6 w: X
let j 0* b5 N" x: U6 P
while[j < people]& R: Z. }5 w& Y' _
[
; U$ }' B$ V; ?( jlet new 0
& O6 Z0 U/ `8 V; j7 r;;暂存新的一个全局声誉# b3 L7 H" O% e- z
let i 0- ?; M% y6 J8 y: ~3 e
let sum-money 0
: z5 O3 U4 |0 H; \9 [; {% Glet credibility-money 0* L. x" g) }& F, d6 q& J; S; y
while [i < people]
/ i9 ]; W: ?+ K2 ?* s" g[$ G. v, Q/ P ]8 e
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
b. ^; \9 [' b- s7 l2 hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% \$ s% g6 D- p& B$ Cset i (i + 1)& r6 X7 e' c7 m( H+ O2 v2 l
]
; x, r0 T d) hlet k 0
/ N/ \. G( w- v) V& Slet new1 04 W* n; W2 X. }2 u
while [k < people]6 p6 p* K6 ~, n' S0 w
[
1 T& `1 h. i u7 u7 kset 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)' o' L4 T3 z1 x4 D! _/ k
set k (k + 1)
7 _0 Y6 m2 p; I& q( Q( D- b]
2 u4 p1 B q* X f* J% sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % e+ p8 G% L% V! W
set global-reputation-list (replace-item j global-reputation-list new)
8 [ { h9 |$ q- t" b/ T2 }' tset j (j + 1)
% F, Z! U. t/ a0 A]
, {* @7 H2 [6 H" J! {end
8 @ L- n; a# Z& P% l
6 o9 n- m7 f2 W: c2 n6 P7 U$ G* v$ z' N% D9 H1 u* ?
5 }) ~$ ^7 y( ^
to get-color: V5 S+ X1 W& L6 a6 m' b/ I
$ m: E4 Z u' I9 C& m. X" @
set color blue
! }* B% r) Y J! U/ |end
$ T; P9 Y* N2 W- L- s- N. [$ B8 x1 z% G% R0 j
to poll-class
# P# R) B' _ R2 D% f* v/ e* [! rend
9 z( ~( [7 G5 ~2 p& U/ o! i- g' P" K$ ~9 U. J1 ]
to setup-plot1
/ L& m" {8 T3 u+ g; O4 B5 p, f8 j
set-current-plot "Trends-of-Local-reputation"
# L+ J4 z* p; f# A; c# ?/ c# s+ |2 _: J" u( g8 ^+ i
set-plot-x-range 0 xmax4 s6 z9 r. G, ]! r- w
( x+ s* |8 x' I( R) ^set-plot-y-range 0.0 ymax
8 N% A! X" T; G! \8 x1 B: R v4 x+ dend
0 y8 N* e( F2 X% w6 W7 u: j
3 f/ H3 U4 d+ `9 A6 X1 rto setup-plot2+ p; A" W( S& G. K! _
' O3 k& r( U$ V. D$ w- e+ o
set-current-plot "Trends-of-global-reputation"+ t: r+ ?0 | ^- X& S/ v
" U2 w5 H m: V9 _. d2 |set-plot-x-range 0 xmax
6 _9 l# A7 O" M, z+ P7 c& r7 @( i! v6 N* q6 |7 |7 r( T, G2 N
set-plot-y-range 0.0 ymax, W, b% C9 B" V b% N8 b) K* w. M
end0 {2 _8 E; A g- p0 {8 ~' M. b
( \1 _; Y! g8 r0 |' b3 p# `2 b+ Y
to setup-plot3( g1 e0 [: y/ M8 J
1 a; l+ U+ ] ~) p% I+ T& @ nset-current-plot "Trends-of-credibility"
" y6 t* U7 L$ [, W3 t: m, f3 N; ?* A0 K6 f3 u
set-plot-x-range 0 xmax
/ f' [1 `7 _ d( \* I0 @# [
0 x+ ]9 S; s7 R) P: b$ G; k/ Tset-plot-y-range 0.0 ymax3 @1 _8 S: v5 X4 D7 o1 l- u, M( G
end
, V) g9 F- L" l! W' z3 ]/ s7 o; z# T. f: p6 o7 R* r& U
to do-plots, G# F* K; o* T+ S: E* c+ C
set-current-plot "Trends-of-Local-reputation"
6 T& F9 r; U5 v/ k1 Fset-current-plot-pen "Honest service"
9 H( }5 R1 J* b5 c! S' s* `end
/ o( E2 {8 i5 D" M9 M0 }! G1 G* i( N1 K
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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