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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
$ U. N: {! f& Z0 v# F" Aglobals[
, s q3 u; F3 _xmax% } S7 p7 B. j. K$ L! R, \3 l# Q
ymax
/ t+ N4 L1 u& a. ~! t0 z @2 zglobal-reputation-list, {3 S8 q: Y7 p8 ~
1 z$ A# ~4 l3 ~1 y: G0 m# ^
;;每一个turtle的全局声誉都存在此LIST中
' V ^" C/ @! l: E8 w+ I0 J$ [2 Jcredibility-list
3 O9 _/ y5 h0 m4 t2 {! p$ `# C;;每一个turtle的评价可信度
' F, D* d% \8 U. Phonest-service9 H# m3 \0 Q8 h- l, N
unhonest-service1 H# ?% S/ v1 Y% h
oscillation" O, Z3 |4 |7 |6 M1 j, ?
rand-dynamic3 l/ U9 T# D" D% S
]
! [7 y; u) y8 g% t! w( ^* D2 u0 g: |, L# n9 u8 V
turtles-own[! B4 Q$ V6 W# F9 @8 |2 o+ G; B# v- L
trade-record-all8 I" Z: |* S% V, ]2 U: u0 O
;;a list of lists,由trade-record-one组成6 y* ^6 O$ a! k) _" I; T
trade-record-one- Y+ M% m. G7 |. E1 v
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
) h: v) I7 _. ~3 V3 `" w' t
" w. u, [5 [$ K;;[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]]
, w8 Q$ c" n/ _) Dtrade-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]5 |% Y: T) g6 c9 e) F; n3 ^
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* y' `7 q/ O" C2 J# a2 ?
neighbor-total! V- q0 [9 l' e9 f8 N+ E7 R5 F
;;记录该turtle的邻居节点的数目' b; N! U& k- t) F4 A# Z5 c$ J2 i4 F5 {
trade-time
" P" v" ^% {' G1 Y S, r* w;;当前发生交易的turtle的交易时间9 o; x5 Y: t/ I
appraise-give
1 |; U% }% K8 x& v5 c;;当前发生交易时给出的评价, }4 w7 [& e! i* u
appraise-receive
) f4 `# u1 k6 h% V;;当前发生交易时收到的评价
# J( ~+ m1 d& F3 b; X- eappraise-time4 R. x% ^7 O" Z1 z# {9 E' ^
;;当前发生交易时的评价时间) l+ S2 C. K0 F" m6 X% j# F9 z' C4 D
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) b* c" J9 |1 _2 J4 P& z7 W! _0 G
trade-times-total+ q/ Q- `: Z m' s' j/ I% s/ c
;;与当前turtle的交易总次数9 B) l; a+ U% u
trade-money-total- ]+ `) f* W( q% `/ z9 f. x4 ^
;;与当前turtle的交易总金额
l* B: Z, F' jlocal-reputation& s. X6 I& d8 r' H, V/ @) b
global-reputation, F$ s( X' `% r) F8 w
credibility# e" j! a$ m, ^# ]# q/ ^; I4 v
;;评价可信度,每次交易后都需要更新6 r8 T2 z V1 J5 y M. ~7 [
credibility-all8 N& _+ ^8 L3 m+ O- e# S' m6 {$ c
;;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
8 M2 |2 e5 B9 G2 F$ R2 E: ?4 X b) f4 N. v
;;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
& q8 N0 p. c) ~credibility-one' P+ N* [2 |- S; [0 m
;;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
' V3 a; {4 \% jglobal-proportion
# f) b: T7 _8 Z7 X& r7 s" F$ Mcustomer
" w7 v$ Q8 u' l9 D( A$ E( |customer-no
# u5 j3 o0 C- a* ]' ~trust-ok
' q, ?# M ?* T0 J, A3 }trade-record-one-len;;trade-record-one的长度
1 {0 A0 ?( U5 d! K* I4 K]9 y+ N( R5 j! f6 R6 T0 A7 Q5 m8 g" s
9 S! f) a' a: p% G;;setup procedure
. u8 Q$ I: Y7 e
2 A1 {. b, \$ m/ q' D7 c$ ito setup
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5 G+ D8 H& E2 qca
2 R7 m: k7 K2 P2 V. p( ~' O0 @! Z- m6 ?' \; A0 B: |
initialize-settings# z: u1 j- x8 A: c* M% ?
9 h! `5 R: @3 A+ ~crt people [setup-turtles]7 B8 i9 J+ E5 U
. f3 z$ C) J2 ^1 H: f/ A rreset-timer
6 E8 V N+ v: c) n
% ]3 R1 f/ o3 {! kpoll-class* K- Y# F4 q5 E- X. V8 T
) E. E1 d% }/ [9 S, P# t
setup-plots
7 b; p# q6 ^7 n# m) S6 G; O Y1 S7 [2 n, R, ?# P' u
do-plots2 ?; p2 n& L& {' r# I( M
end
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to initialize-settings- b7 o- N: W* g) p
3 u E+ Y5 d1 ~set global-reputation-list []
4 }. x5 V( u& }5 e0 M6 R( x$ W k
% e/ @( u; g3 H8 k! W4 \, [1 Tset credibility-list n-values people [0.5]1 i! {' Y( \6 z Q# }$ n8 S
% ]8 L- Z& l, h
set honest-service 0 E& n4 b" G: _4 B/ R
+ q- c, N5 Z, @5 s' Uset unhonest-service 0 [" M# G' |; R
4 H: k8 j; p8 g1 Zset oscillation 0
4 @9 ^, f$ \2 L) _- t4 g! F( z5 R" ?/ g# s* {& W$ D9 C. {
set rand-dynamic 0
2 B9 ~9 h! z1 e" x) Iend
7 y+ b& V4 d6 C/ [* y% _# d
! a5 s1 \4 x' C! X0 |; L: h! [# h8 Z5 hto setup-turtles 0 w9 s$ h3 w$ L
set shape "person"
6 I' z& m, |5 a9 {5 fsetxy random-xcor random-ycor p N% s: u; ?7 Q$ u; M( E1 n8 j
set trade-record-one []
3 ]- `4 X( X" @4 g p; x% q1 S0 _
set trade-record-all n-values people [(list (? + 1) 0 0)]
( m9 @5 D' q# V# {0 J' q5 j. e+ x' M+ l3 \9 f8 E
set trade-record-current []
% h3 z8 N8 T" O: \1 w2 R p4 Kset credibility-receive []; D3 \' k# C! ]8 d8 _. \6 _7 [" Q8 ?
set local-reputation 0.5 h4 q* V, T6 u7 c/ B4 D2 B! D% M
set neighbor-total 0
) k' l+ R9 f( l% \! N# ?: i2 e# iset trade-times-total 0, [ ^4 ]& N3 ^4 V" ]: o
set trade-money-total 0
: j# U& e5 y" T: E [/ S0 @set customer nobody
: @" c2 f4 U4 g6 Q) F/ {0 vset credibility-all n-values people [creat-credibility]
# c, Y% u/ T0 ^9 Y; U: W6 W5 i) Oset credibility n-values people [-1]/ t' M! _* B0 X8 |
get-color( @6 P$ k: `7 m& ~
. D! N0 @/ C$ W9 g* |% ~
end
0 ~6 d* @6 Q# j, k5 Q. G ?3 ^% ] n- K: O* t% B, Q
to-report creat-credibility
* z4 e; M; L( A+ mreport n-values people [0.5]
6 i, o# N2 @8 L$ m! fend
4 X1 }' L& l0 ?& o9 F. u4 r! S m2 t$ [% b2 ?
to setup-plots" A8 ~( s. g: u
) l- D4 m$ a+ n: o( b- |0 L0 u
set xmax 30& c3 x0 R# |$ G d- j
# J5 Q0 n) b; }5 p- e8 _
set ymax 1.0
0 W6 Z$ Q' O, ?! ? r' ~; y" _/ c: Y8 P
clear-all-plots+ a$ | e0 N1 y; u2 p* m, v
; l# t$ r- m; C5 }setup-plot1
$ ]6 }$ ?# @; P$ h4 T7 Q4 ]
1 k3 u; k$ ]- D4 K9 `setup-plot2
5 ^* ?& k+ u. d+ C, u @2 Z/ u, b% N6 K
setup-plot3- x6 Q5 X* ~8 {# r. k
end
. J8 i6 L- N; ?. O
1 w' f( @: g) C3 ]! K" i;;run time procedures
% o& ^& b7 N5 G, D$ U- X
0 [' D& Y: Z; a* n. Zto go3 W& U d2 V* v/ G+ v
0 y. n" j" V, v3 dask turtles [do-business]
' i# e6 }* |7 a) [6 l' wend/ i1 _/ R% b; H
$ q8 W0 I3 y/ Y9 {; X9 `; n
to do-business
& y' A: b b( K t- c' Z) P% p; e- ^, R& j0 T3 F
& O& ]7 o5 z) N6 j: v" n
rt random 360! b2 L* j) P3 B
$ q8 O* } q9 L4 N8 g1 y3 |; Hfd 1) `% H: u- v1 z+ [2 B; ~
' N: i: C, X6 t- y1 ?
ifelse(other turtles-here != nobody)[- q: h( y* I. E) x1 d+ o; d
! c3 Z' V" R, aset customer one-of other turtles-here) R( _( j$ ^; n; E
. K5 }( x5 V0 i$ P5 q) y;; set [customer] of customer myself, M7 p3 ]" M. {$ `9 N+ G6 ^) i) l }
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set [trade-record-one] of self item (([who] of customer) - 1)3 ~7 D* `+ R( H- l$ V" D3 |
[trade-record-all]of self
+ L% }4 M- j/ @4 f;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
7 J. h4 ?# G! {& U$ B+ }
# R* ?% d, `! y7 J) tset [trade-record-one] of customer item (([who] of self) - 1)
6 [( |( {& V9 z) L/ n/ @[trade-record-all]of customer
5 F" |4 [7 z u* Y. g* F/ |) e- D; }# K* d( x) w- S
set [trade-record-one-len] of self length [trade-record-one] of self0 o- ~6 W/ ^. b, I
7 @! B! p0 @, s: _# w
set trade-record-current( list (timer) (random money-upper-limit))
' \. r" B5 N% [, X# N3 t* Z" y
1 L' A' ]- s* O, \ask self [do-trust]
5 _( \4 d& B3 o' L$ ?4 L7 B;;先求i对j的信任度# n6 B7 D7 B$ \* [, l
! ]9 q e) s( ~0 B0 b, v- T4 U" rif ([trust-ok] of self)7 j1 U2 P1 _/ M [
;;根据i对j的信任度来决定是否与j进行交易[
W+ ^" t0 I6 Y) X6 U- F. Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
7 h2 E' f$ G/ Q3 _9 |' a- q2 a, y3 b' l4 t% e2 V" |: n
do-trade
7 i' b4 Z9 j' {, F& r3 n0 X& }5 e$ F$ G; N
update-credibility-ijl
, x2 P% A; r* m! y/ S% Q+ w# {! X) ?( t- a O
update-credibility-list. |4 Y0 L- L7 r+ ]1 d
+ G6 b& ]5 i6 I1 A# q- x. h
9 z: {# ^9 L+ t9 _9 u8 } W9 Gupdate-global-reputation-list, k* U+ T: R/ k: Q- R7 S; \$ x
7 h& |( f! O, K2 n9 k
poll-class
8 Y% _" V, L6 G6 ]- u0 G) N* p! y
( n8 k9 x+ o% S% v0 bget-color/ H( j9 S- R3 e6 _" \7 D
; t5 T3 n( e" y& Q' a c# T]]* ?/ l# a9 N% d$ K
' A3 x, o/ p. H( o
;;如果所得的信任度满足条件,则进行交易" a5 M, v2 @5 S# W4 j4 b
+ P9 I" }4 O0 z' r
[
\/ c1 B+ S; Q, @; o% f4 k! `- f3 n1 N* u% D
rt random 360
9 K' M8 G& B0 g7 X) s% _
I/ c. F3 L# ^% t jfd 1' |$ n) [# J% h/ V# r* v
, |. r* \( p! {. t% T
] ]3 c6 b# _' X% e; P
1 D2 S4 a. l: G) t/ y6 ^
end' j5 ^& F& G( {) S6 L* k: C
k$ C/ ^9 ~- x0 q0 _: a
to do-trust
) c8 ?6 S3 ^% z( b0 iset trust-ok False
$ N0 Z! N- O3 U: f I. Y5 h
! ]/ z, p0 i8 x( o$ }
9 l' r! ^, j% c: n, _let max-trade-times 08 Q( m. P7 l" Z$ w; d& @
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. B2 p4 Y0 B* c4 qlet max-trade-money 0, G* X2 y: x6 Y. L" E2 f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; k5 P* Q% v7 f) Blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# a8 Z/ m- A/ h: i
9 u o3 v: m$ P% j2 O g Z/ W) N+ P o- R
get-global-proportion
- [: C+ @6 k7 t, ?6 i4 _let trust-value! {" y% K: g) Q; @+ P( F* F2 _
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list) U7 t/ [* A; n% w" @
if(trust-value > trade-trust-value): L( ]: b, t0 q6 z( o
[set trust-ok true]
/ w# |3 ^* F$ e% y* wend j; A0 \) U2 J$ v8 u
: J+ L% v4 y& q% U; d8 `1 h
to get-global-proportion
% |; k3 v& V }' u$ U9 y+ Kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* K9 L1 D2 f, B
[set global-proportion 0]
" F! \3 T8 w1 H' Y; `[let i 0
, E7 L. F6 W* t9 Q$ M4 K7 Clet sum-money 00 z9 [! ]2 i4 T! Q/ B' R* Z( ?
while[ i < people]& C" F9 K5 t1 ]+ F8 ~( T O" U
[* C" ^+ {, l! \7 w
if( length (item i
2 D- t' o- l4 H/ c! S[trade-record-all] of customer) > 3 )
7 h' Z: U5 b% ^, d* e9 _1 G: ] Z- P[: ]' U5 X( w# N/ q' f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 Y8 Q4 u6 a( b
]
5 J) [1 t5 Q$ P+ i* g( C6 f]0 g# r" M Z$ `6 M
let j 0) ~5 X' \! s# v3 z
let note 0
8 |6 t Z, q/ Qwhile[ j < people]( U0 g, S" \ p3 i; y% W7 M* H2 ~( g
[
6 z, ~: |# u/ K6 }( ]2 r' c' o4 {if( length (item i; a( Z3 I! q$ n1 V. }3 \7 L
[trade-record-all] of customer) > 3 )
" v6 V& e/ {8 B0 y& p1 B3 Z[' f# w' l! \* g6 ?3 V N
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& ~3 V- k' P5 Z, \7 ~7 J: V[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] z. R; ?0 \, y5 i& ?( C, M& ~$ R, N
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
m- I7 L3 z8 _) R]' E: t* [( X7 W3 G
]* C' V4 [5 u2 ]
set global-proportion note
! B# J2 }! c" n/ i# ?- H% \$ t7 b2 }]3 M& C* R' U# G! U) ^: R( _
end, ]4 h8 e& f& S/ C! p, U e
8 K \: a$ e) W/ d8 uto do-trade! J" a# V6 o( v: m
;;这个过程实际上是给双方作出评价的过程
: w: v3 k6 e% B4 Mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! Q" u6 G! @) {# v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 u9 i7 c0 Q: ^1 S8 z; H$ z9 y7 u
set trade-record-current lput(timer) trade-record-current0 [9 a+ Y0 i- ~6 ~
;;评价时间1 ~1 a Q9 b' ?( ~# {. k, F
ask myself [% l6 p; t+ _( `0 M
update-local-reputation$ C+ q4 |+ O# L- Y! J$ p$ ^
set trade-record-current lput([local-reputation] of myself) trade-record-current
+ H7 b- ~3 u7 `], j( E6 Q; g; H( y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 C" W7 Z5 k5 M2 r a3 P9 X;;将此次交易的记录加入到trade-record-one中
) m- q* u+ m8 L4 u& q2 G0 H wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 J9 P/ \: O0 I b2 Q
let note (item 2 trade-record-current ); Z- C6 _2 j9 S( v6 g5 _" N6 f
set trade-record-current
* Z/ v. g" \! q; _+ X/ |(replace-item 2 trade-record-current (item 3 trade-record-current)). c. X" Q, I# F- e W
set trade-record-current) {( J2 ?: ?0 T$ [
(replace-item 3 trade-record-current note)3 P/ e; q0 e8 z: O2 A
6 f, b* O+ d8 B9 a; O, V: C2 m
& [' I& v6 w& X/ Z. Gask customer [
3 y! g) L- O& } l9 hupdate-local-reputation8 X; {) e( d& t! j* q* C4 W- V
set trade-record-current7 I" J: V! L2 H& W) n+ _9 {/ t
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % n6 g2 L0 Z. ~1 S2 G& t0 o
]: C, P' c' f5 S; v W ^2 z
0 Z: M6 x( V+ d0 R. G! r/ M W! X. J5 d. I
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) Z& h* O$ _% g
* l& r& S# B7 I m* ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 W5 g; S3 P" S( f5 x, Y;;将此次交易的记录加入到customer的trade-record-all中
2 @5 i) N* Z# G8 S% H& qend
3 u' ?: B5 t5 J0 R( m' P0 l7 l+ G) r8 E4 \
to update-local-reputation5 A3 Q+ M# i/ P9 C
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ e2 x0 e& \3 L/ H0 S; `, ?" g0 m, u1 Z' d- P
K7 U' }/ E* Z1 t5 q: m1 L;;if [trade-record-one-len] of myself > 3
# F7 N( w0 E0 R$ p& Supdate-neighbor-total# r2 W$ ?4 ~) m
;;更新邻居节点的数目,在此进行1 H J4 j4 u# o' B+ G( o
let i 33 n# `# ~$ V& H; L) S1 ?
let sum-time 0
1 { w+ o0 L" F: j2 g5 X' Jwhile[i < [trade-record-one-len] of myself]+ e' N2 H$ F. }7 y1 Z A
[
* X2 @3 `: q( m- L' f9 V8 M1 R8 h3 @+ iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# B0 Q; v) ^! O. `2 {set i" n8 m1 ^# i6 A Q, Z) l8 i
( i + 1)$ s" k! N# @# J) t- K4 D
]8 B0 x( T: M# r0 j, y
let j 3
7 Z* O! D2 Y; z, nlet sum-money 0
* N, D8 A+ N) Y- n' zwhile[j < [trade-record-one-len] of myself]5 U+ @/ l* W7 i
[
( U$ V" Z9 D& ~ }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)
8 [; ^( ^2 W! Z, Fset j
" r8 L0 q9 a; U0 \! N( j + 1)
" @! I; _ v% `2 k1 A% q! y' {' }]; Q% u+ z! |/ l. x: [
let k 3
/ m2 d& y v5 m$ X% A& Slet power 03 Z. { O0 d+ }( \
let local 0
7 v3 |- t0 _9 X, Z; c+ G) F# a- ^while [k <[trade-record-one-len] of myself]7 `! s- t2 V `# ?- P' O& q
[' i+ { |' M3 f5 |
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) 1 o+ h$ B! Z) J6 n9 `; X
set k (k + 1)( `) x, e4 l' E W/ ], e
]
# l3 d( b T5 j$ G. rset [local-reputation] of myself (local)! z' } x5 U6 V0 H2 T
end) c% B& |6 x7 k3 G( {
+ m: t3 A! r( q! O- F G
to update-neighbor-total$ [/ {$ Y0 e# w& B/ F; c
( ?- s. L% N. p
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: T" \# e% T- ]! b2 [/ {6 y2 q% ~. K! r( {. k
7 a/ [% ~1 l3 [end0 c6 A/ \9 x+ |$ B) w
; {" C; a i; ]( h4 b% Vto update-credibility-ijl % U0 z" z2 T$ f- {( c9 _- s( X
- C" A' `3 b9 s4 O; `7 h# r;;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。) Y7 L( y# |* U3 ?% [7 m
let l 0
, g+ ~- _2 F0 r/ A$ lwhile[ l < people ]: W) A. y+ Y- K B! p# X
;;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)* M+ ~, a+ }. n# ?/ u9 ?: h7 I
if (trade-record-one-j-l-len > 3)
3 M9 ^& w8 Q1 r: O5 v[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
, B4 h* k& i" \% alet i 3) l3 B! q. w! `6 [) J2 b3 o# d
let sum-time 0
+ F% e2 k' ]' B( Q2 d2 U( Uwhile[i < trade-record-one-len]
) W$ B: y; Y" l, v4 [7 O[) @4 v! V/ \* P3 A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 y, T& ] `1 K8 d4 B# V8 Bset i/ u% o) c0 r1 i2 s
( i + 1)
% J2 x8 ?2 n6 q6 i/ i( R]
) F3 o2 p# \9 B* A- @let credibility-i-j-l 0
) _1 P5 i8 x6 x/ M* E# H$ ^( J# x0 u;;i评价(j对jl的评价)
* \% m0 \5 L7 e: C* d3 xlet j 3
3 F2 M0 u; ~# Y5 j8 `5 B6 W8 }let k 4
# Q6 o- i4 |& {8 ?while[j < trade-record-one-len]
$ F" n/ N3 W, `& j2 L$ ]% Z; I[; b5 K1 v) p$ E7 f% ]8 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
# n: t1 K" L V8 o, T; Sset 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( ^; S$ K% E4 B/ A! f) F \4 T
set j. D6 k5 z/ r0 t+ j0 C2 I
( j + 1)
& e% N6 K" O- D. f: Q4 I]% k1 M' O! k1 @) N
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 ))
4 `6 S; e2 V; S" L2 m& Q) K; F( K9 l7 Z% h+ E8 T" M
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 M* @. K$ _( K% @7 T;;及时更新i对l的评价质量的评价6 H! f8 j) J/ v2 |! @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 a: c9 A8 i- T6 d" l& O4 pset l (l + 1)3 j) ]; q2 E& `. E/ e
]
5 ^% }# m7 A3 t% R6 Qend
6 @0 S* G! }% x+ [ k# y% b4 ?( o9 L Q; K' O" W( d4 P
to update-credibility-list
/ ~6 h+ R6 e, u! I" {let i 0
8 \6 D% d' y4 O" I* [& C+ b0 m8 R3 k, Rwhile[i < people]
- j9 f r/ w" ~0 A; [[
0 R+ h6 b; d( `( h$ Y3 Elet j 0
7 H% ?9 i5 {# z/ _0 J' Ilet note 0' `5 E+ D& u+ x6 L
let k 0
8 p7 g/ U q3 L;;计作出过评价的邻居节点的数目0 a i2 U7 g7 S/ c1 G) ?7 b1 C% t! M G8 Y
while[j < people]1 |, t" q. r4 L' `/ z2 q
[4 w5 ? D) `$ V) w
if (item j( [credibility] of turtle (i + 1)) != -1)
9 {% U. m9 [7 X1 Y! z$ r9 a;;判断是否给本turtle的评价质量做出过评价的节点
* u+ C: A. r, {1 s J) f[set note (note + item j ([credibility]of turtle (i + 1)))6 ^3 [5 M* J8 J1 b6 K
;;*(exp (-(people - 2)))/(people - 2))]9 L$ A& `3 g+ f, l
set k (k + 1)/ M g# }+ `, N1 ]/ C7 }
]
8 e, ]' u2 F4 Hset j (j + 1)
& F; V* ^/ z8 L" v7 i6 z]$ U) l- O' ?! E }
set note (note *(exp (- (1 / k)))/ k)4 b$ Y# Q, U4 j8 i m2 W( k
set credibility-list (replace-item i credibility-list note)
8 N5 C- Y/ [' t6 k9 U( _set i (i + 1)! V* i5 m% s% O$ G) @. T" Y' P
]1 ^' O( B% f; ?: X, L2 o; y$ V
end. D, ~4 M1 }1 [) t7 N( d
8 u3 c( Z3 M. s1 Z+ c/ B8 s2 s
to update-global-reputation-list. {! ?9 O, e) n! Z4 \
let j 0
{! C, e8 G; F, o* ^8 mwhile[j < people]
% ~ Q( m% ?2 I9 V5 B[
A) @1 _( @( n' slet new 0
/ l+ J" z- L3 A;;暂存新的一个全局声誉! r( V+ \" E5 K7 F( o5 f9 B
let i 0
5 m! Q7 F+ P7 X6 d" l5 olet sum-money 0/ h, W' Q" H& A) b& N
let credibility-money 0: K" j& S4 k% g3 }. n
while [i < people]* i6 o; d& a; I9 h! Z
[ ^" t3 Z" [! {) T' K
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 }+ s4 u# W3 h
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 y9 d( S, v5 d) c2 T' L. Oset i (i + 1)
' m' \$ j+ G+ b* J]
$ C4 }+ y" q6 x; _/ clet k 0* y- F% R1 K& h7 w" ~$ e8 Y
let new1 0
2 ^; N( H" ^1 X* Pwhile [k < people]
5 m$ p( l7 c6 A8 i% v[
% c7 f8 E: b( ~- Q; c Wset 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)
; q8 V5 {+ D+ ]/ Rset k (k + 1); W1 J. H" I7 y0 G
]& @1 j: C( ]# L1 B4 ?" I+ [
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 q6 v2 n3 J3 \ T
set global-reputation-list (replace-item j global-reputation-list new). Z' G+ B" p* f1 g# \' n$ a9 c/ f! O _: q
set j (j + 1)8 U7 U" Q& P0 X6 N
]
Q% R& D4 Q B( k) Zend
9 P* k) Y, B/ u9 Z, {1 e M! X
+ {- z: ]9 p+ `% u$ r; C5 @( n# K) k. t; k
# o7 c- K: x0 m+ g
to get-color
, i9 Z& P1 k% w+ }$ u# p8 E! L' o, h
set color blue
/ y a% Z0 j% o& q4 a, W; [6 aend
* k6 h" C$ s3 T8 m/ X3 a
" @* O1 x, Q7 F* U4 d! u# Jto poll-class# M, i, X+ Y: _: _" ?6 P$ C \
end7 H- h1 L4 Z7 \, V
4 j0 ]6 f5 ?1 c* R0 u3 k* w! eto setup-plot1$ v; G0 |4 o# s" U
- _( o; |# w h1 i6 x
set-current-plot "Trends-of-Local-reputation". C+ \% x! F" `. U
9 d& }) _9 e- ?, v0 k6 p* s6 m+ [
set-plot-x-range 0 xmax, K1 K% N: r$ d p" P6 K
7 P& R5 v; X3 Yset-plot-y-range 0.0 ymax
K; @1 y' A- W6 v( k, _% A8 N8 g# ~end1 p/ @- o5 [! V& h* K' L
. K. K% ^7 a/ O4 ^2 r m% t/ j$ i8 Wto setup-plot27 B3 ~ C7 s/ i( U9 i
- u8 X1 h$ l- s* d8 U- `$ r
set-current-plot "Trends-of-global-reputation"; Q! Z2 y, B- |: R* H& W6 K
* Y& p; {" m) _* H
set-plot-x-range 0 xmax. L& ]- u' S: c' e5 f
* q# h. X5 [0 W, q! o* Qset-plot-y-range 0.0 ymax
% r. E: \) j) T- Jend
- ?- z f" }. u7 m
8 V; ~% B4 E% q K. {to setup-plot3$ F3 X$ @ i8 D$ l: j
3 A t8 {7 D) o
set-current-plot "Trends-of-credibility"
9 l. ?0 r6 s, L7 z9 ^
- a7 d" \/ F/ O8 pset-plot-x-range 0 xmax
2 T6 }6 H# w, F. u* r; x$ l. M* G$ ^9 {" V. O+ O& W( H* B
set-plot-y-range 0.0 ymax
' u b" p6 \ z, Jend
& M; f0 ~( s7 c! ~/ q$ f& U
0 D/ @7 @' p" X8 n/ Gto do-plots0 q: R1 e4 N5 ]7 e2 @7 z
set-current-plot "Trends-of-Local-reputation"
' m: H5 p3 C' ^/ L! U/ e1 zset-current-plot-pen "Honest service"
, P! Z" M6 v0 C" x% N6 iend" a# V: ?+ t4 g, p0 [0 i
& f% H2 ^$ }. R$ B$ L[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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