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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
6 B& l3 m4 s, t4 s" Lglobals[ g3 C' p" D0 G/ U2 F/ o. j
xmax
" o9 [0 Z ~, qymax
+ h' d' x$ W' `global-reputation-list( o+ K+ ]' Q' Z
- f! L; I) L( o1 X2 j! i;;每一个turtle的全局声誉都存在此LIST中3 b! U. n" P B, S2 e! J2 y' z+ [
credibility-list
m8 ^+ @& l; n;;每一个turtle的评价可信度
# j6 a4 ~$ e6 mhonest-service$ N# P1 o3 R- _( o8 N- b' b
unhonest-service
W& Y" _+ M( h; ?8 goscillation
7 C* ~4 T8 Q) Orand-dynamic8 {- f; ~+ z- T" j
]0 L8 }3 A- G8 ]9 B# N1 s
( D) g" G6 `& P/ P, S) cturtles-own[) T1 M3 K# ^; _2 M
trade-record-all o0 A( k1 q) q& I+ B* y4 G
;;a list of lists,由trade-record-one组成
$ M* ~9 \0 f, A1 k' g2 `% Btrade-record-one
7 U+ k% U$ s' y) `1 w;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
: _, Y8 i9 E! Z! i. l: b2 z% [* ]- f" m- t% o( c
;;[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]]. D9 ^6 Y9 J% ?9 X
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]
! e8 p2 P" D0 {; t7 Kcredibility-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 s/ c& t/ b& R: \
neighbor-total
- S, l: b4 l: a;;记录该turtle的邻居节点的数目5 }0 H8 M" M4 o' f( n
trade-time
# u8 B4 R0 _0 }" {3 K# q;;当前发生交易的turtle的交易时间1 J. E* v- ]8 g P. x8 f
appraise-give9 O5 _; _% U1 j2 k7 v( k+ ~& K
;;当前发生交易时给出的评价) i3 x# G9 Q8 [5 A l. o" R$ A' L1 Y
appraise-receive
+ W, W3 p% h+ i: J: T- Z" E8 o;;当前发生交易时收到的评价
* A# t0 ]# K# ` X4 H2 W# `7 N7 @appraise-time
7 Q. F9 A9 G6 J. O1 C;;当前发生交易时的评价时间0 ^3 Q) z! F; a/ f p
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# s7 p! L. ^! _) S7 l# [trade-times-total3 v; _" X! j. l
;;与当前turtle的交易总次数
9 s6 Z, }+ r! K% ctrade-money-total
, D7 C* S x) D( R& ?7 @5 D: D;;与当前turtle的交易总金额4 J: ^1 X' V+ ~+ F) I& {# }
local-reputation
! z' n5 K* i& d$ Nglobal-reputation$ ~7 J7 R7 U5 O* J9 C+ u) w
credibility
2 U& R- C6 y: a8 d/ Y, X7 u;;评价可信度,每次交易后都需要更新
( [+ I$ d; `9 J- @0 Fcredibility-all
: o- p- f; X" q;;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 ~" g/ K" ], h: X# S6 r
H& m7 Q) o! ~5 Z" s0 J
;;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
. I+ J# v a6 k+ G0 ccredibility-one
; J1 l% g1 ~& E2 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
I! v+ y3 L5 Q8 y( {6 B/ t, `global-proportion
- H' v: U/ b' H8 T, ~( t, ~: y; Zcustomer5 P& P- x! y- m6 b! b
customer-no' H1 j% K) S4 g0 W. c
trust-ok# H: G- L6 |0 M+ B& ]) i
trade-record-one-len;;trade-record-one的长度
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9 Z; F, f1 c. ~" j# O" |7 w
4 {: @/ ~1 U( i;;setup procedure9 j. W$ R. w0 K
- O3 I; Q% q+ e1 b, Tto setup
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ca
R J' Q4 v" W. T R0 {/ Z8 l5 C% |
initialize-settings
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crt people [setup-turtles]1 p% t0 F. B v+ S. w
9 |+ n) {* r$ W: r* Kreset-timer3 r9 T* d9 |6 Q
( j9 _, r) T6 lpoll-class
5 J: q# l( n' }7 ]
" }/ S' ^+ ^+ D+ ]) y. a8 y% p" |setup-plots
& ?6 I, C4 W8 l( k9 j5 B! U! v
do-plots. r! F$ u0 b' }% P; D1 X# E
end
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1 o: w$ H* }& [ Q. R6 j1 Fto initialize-settings* b3 Z* H; b( i* a$ s$ \
7 C7 Z4 s" F. V9 Yset global-reputation-list []. l& e( Q* n2 W6 v' {4 j6 n( G3 N
) H: @. t- R: B0 `9 E" h- E
set credibility-list n-values people [0.5]# B }% ^# h; O3 o3 G- x- g
" \$ V- r2 ?) I) X
set honest-service 0
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; l5 o' I, y) Eset unhonest-service 0
2 _4 }8 Z/ C) F- w. L' t; Y% B; }
( i0 K5 x! v% O S6 u, gset oscillation 0
! F, Q. a+ w$ m8 I; x$ h, S: h S( Y0 d/ q$ d* ~
set rand-dynamic 0! ?% ]7 S- i! u
end" J1 F; e" J5 W6 u' o( {
/ ~, d! Q$ ?! ?, ]* Mto setup-turtles + T" X: ], i7 J; k0 N
set shape "person"
3 d4 l E( _; Y. bsetxy random-xcor random-ycor# K* p- k6 m( L) ?' R
set trade-record-one []
, A3 u/ q1 P. R# E1 X R' I/ x
2 V5 r0 n4 F5 G2 S, Kset trade-record-all n-values people [(list (? + 1) 0 0)] 7 V- n! m2 |6 }7 q! [
( {; q7 B5 g% d# P5 e! I cset trade-record-current []
1 Q' j' s- u3 v, Xset credibility-receive []
$ c1 F2 X7 `5 {8 @# W/ oset local-reputation 0.5
: g- C. e& l/ }3 T, uset neighbor-total 0) U- f, G) d, O- x" [# R
set trade-times-total 0
3 v1 D k% A- v9 _+ n$ g2 ^set trade-money-total 0
: p5 t$ E" h- X' Z: [set customer nobody, L' y" W, s i% V! b- Y
set credibility-all n-values people [creat-credibility]7 S, p- \+ j6 w" ?) k9 i
set credibility n-values people [-1]4 \* c( `$ \* n
get-color+ @3 E- M1 Z! s
& d! H: l6 R: x- E
end
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" A: T4 E2 V1 z2 rto-report creat-credibility1 h5 u. U3 C' f6 y+ F3 a7 D) n n
report n-values people [0.5]6 L$ `8 ?6 C% T( j
end! i9 n% p, G8 c; g% i% _
: n* H. b" g) V* h. E% _+ `8 J" g
to setup-plots
# x+ M! k6 {! s" U- F! X L& u
8 }7 V6 y) L8 ^; G ]! Jset xmax 30
! d1 ?+ b2 ~4 Q6 v8 i+ h
3 \; {3 z- ~$ N+ Vset ymax 1.0
& @& j: o+ @9 G0 c' E* b
) E1 F- i( g( M. Z- ^clear-all-plots
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setup-plot1
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! T2 X j* v8 \1 Bsetup-plot2
6 L. J Q& X$ S& i U
$ _. } h+ i5 j% f3 N4 Qsetup-plot3
! e! T9 ^% `9 R$ l$ A9 Pend
9 n; q) p) n3 c) }8 z. I |9 F* x' n' ?: Z. V$ {( \
;;run time procedures- }; R" Y0 U+ Z) K
$ q) u2 q5 Q F V1 Qto go; s) W% b7 h( `2 W) m
9 v8 E) b# v1 t+ \" @ask turtles [do-business]
$ M+ d- X3 \) R iend
5 k2 X [: S" X# I) x1 O2 N! m" j) d
0 @: j1 l W- E2 b/ w5 kto do-business
$ p/ s& W) L: ?9 O l Q |, @: Y$ l2 G6 D) F' E
2 S- \+ C; z4 n: Trt random 360
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fd 1; }5 }1 m8 @" q2 K7 K$ M
5 g7 M* Z# M+ s( |2 d% |. ]: R. d
ifelse(other turtles-here != nobody)[
" Z8 H5 r( v: q& h! I0 v8 G) v5 }- `3 L9 Z% h: p* ^3 F( _
set customer one-of other turtles-here3 g' O7 U ~5 Q+ V# L7 [+ K
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;; set [customer] of customer myself
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4 r, L2 Z+ Q: {# y4 Wset [trade-record-one] of self item (([who] of customer) - 1)" B- s% `5 a/ J2 A. z
[trade-record-all]of self8 o/ |1 t( q- U1 D1 Z$ s0 {
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 j& M8 {9 }( [( i; D( U1 j( C4 `* R2 P( I$ @/ x' D
set [trade-record-one] of customer item (([who] of self) - 1)
; j' k; d o, h9 j" V0 A4 K[trade-record-all]of customer
4 ~% w K# f0 |( q+ \4 u. l/ ^& u" T$ {% J
set [trade-record-one-len] of self length [trade-record-one] of self
0 h( k; T, H) ^
' b; e/ h1 ^( [$ t7 Jset trade-record-current( list (timer) (random money-upper-limit))/ |3 r P* c( R; Q1 n
/ u) x4 `( |4 j6 ^8 I- h% n
ask self [do-trust]
& D7 h* d' c q;;先求i对j的信任度
; k w$ b& x8 R0 V P) H s7 W. U" A6 P) @- x) o0 t
if ([trust-ok] of self)9 ^5 }$ J; W6 n3 x7 u% x( h1 N3 J
;;根据i对j的信任度来决定是否与j进行交易[
; m6 S6 c0 W8 a. J4 t1 Q5 Wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ L, ?& R( V( Y O4 ~
. {' z4 S3 a4 [9 M! [" ?- R! W% j9 D[
7 H, B `- u- ?) G8 c) ]' Z# Y$ N) L* k
do-trade
7 M; C6 x6 j6 e# V1 p* v
. I. e! _; Y/ D* A4 H0 v9 [) L1 Supdate-credibility-ijl
4 n9 C4 }1 O3 e: e, A* n0 T7 [, r) ]8 |; @
4 x# O6 p, Y, ?. m. p7 I( [" {9 o2 wupdate-credibility-list: E y8 X U9 |0 f3 R" K7 a
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. u; {, f( z( r. B9 E
update-global-reputation-list
+ R" J/ d' _: w) v( f, y% |6 o# g6 A2 I; p
poll-class6 K2 D8 J; l2 u/ N
! u# c# J8 T' M; }- [
get-color6 E! h% X, t, e" Y' W1 m; Q
! n3 r7 o$ N4 s3 g
]]- k" \7 ^& T/ `& b6 A
- P( n( I' _3 i9 X+ x! ~;;如果所得的信任度满足条件,则进行交易" f: A8 R, P# ^
! Z6 r3 _/ |0 a- Z% R( e- d
[
4 A$ z) |1 y8 |3 O; n- F- X, h4 G5 ~3 i2 @# ^1 I
rt random 3608 {' }; k& \# I0 `! Y0 k
- u! h, W0 {! E" qfd 1& B5 Z8 _8 I6 ~. V+ _
8 n# R6 q$ k6 }]
; C: X9 `! g5 k" u0 D3 a
8 l3 a# B z& b6 Lend1 B# y- [& j& y7 e
/ B/ n% y: {/ y6 ?- nto do-trust u8 Z; f" E* q
set trust-ok False; q1 C) h a7 U; N! n
1 ~* s& n, @. i+ W& E, l& V9 ]0 S4 [" j
let max-trade-times 0
9 O/ I6 w6 f3 ^% }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 k/ I+ ?; x/ B) T6 K) qlet max-trade-money 0
" J/ K8 P* ?9 i; {7 P* gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; X2 W D. _& n' B* ?6 N
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
; W/ K5 }! I3 @/ @$ O( `. G
2 }& |; @1 B9 k* p
& E9 i7 c" W8 n. m& B: j( k; Nget-global-proportion
3 A4 x) r5 y! p+ f5 b4 G- K; Plet trust-value
- O" [4 ?1 `) Z5 K4 mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
2 {( g, P ^! t) Fif(trust-value > trade-trust-value)
5 q8 _5 N# A! H2 A[set trust-ok true]
7 l1 k6 y- }! ~- ?( fend% i+ k6 N* K6 z
" q9 S" x' X. N& D
to get-global-proportion
# a! o$ C. `# y) _( W8 }+ bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% t) O, |0 r- P/ K[set global-proportion 0]
# \5 [8 l4 X/ N% m* K[let i 03 V$ L& p' Z$ h% U ]& ]
let sum-money 04 Q2 ?+ K, L8 D C4 }* ~( t; y
while[ i < people]
( W& p# z- K( s4 E$ U; g! x[0 N2 i5 S2 [* j6 X6 ?4 [. d
if( length (item i
+ p3 e- Y7 y5 }% @9 {[trade-record-all] of customer) > 3 )
# y& d L' ?$ A( U3 p3 M[6 m" E* l3 D* q$ s
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))3 c0 _/ n/ N, |6 e
]
8 E: h' i/ h$ B]
0 M1 a" i/ \3 |2 Zlet j 0
6 n% e* u- d) `# R" vlet note 05 J2 O! \3 T0 A- H# d) X& U9 p* _
while[ j < people]
0 q [- k* U* ][ T) T+ j* R1 Z5 I J$ p2 L
if( length (item i
% d) E' j( K! a0 |[trade-record-all] of customer) > 3 )
3 H1 A5 K# f- ?[
$ j, P9 x+ L( }ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 r: z* L a, z1 X3 i; {
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; N( B8 k! ~' j8 J[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& h& s, m! L. G3 v C$ B
]$ ^" t8 }$ U, J5 W' v. [
]
0 \' {# _ {$ R: P2 B: Qset global-proportion note/ _; K0 L# d+ E, N0 m% {, q1 ^
]5 [- t3 j# C: ]0 w' l
end4 b3 i5 }6 D! p* G2 r# L$ h: Q; v% {
0 E6 ~' w( F# {8 |to do-trade) }8 h7 R# u) c
;;这个过程实际上是给双方作出评价的过程
# O4 n$ X- ~0 m" a8 V4 M; Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价$ X4 _9 }+ ]/ n- k" J* E- h5 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 y& K, I% U( o( cset trade-record-current lput(timer) trade-record-current5 ^7 {* N* D. ^3 f( m/ |
;;评价时间% o( J0 r7 e1 j& I( n
ask myself [( v# W9 m' O+ s& c+ H9 n7 f0 u+ h
update-local-reputation* A0 Z0 ?1 D! r5 y* Q0 P9 t8 q
set trade-record-current lput([local-reputation] of myself) trade-record-current
* _/ {0 K, x9 k, V. d]
( s9 f- R( G( a- W4 vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 e5 [* ^# ?" Z- Y;;将此次交易的记录加入到trade-record-one中9 a& v: r2 P( D1 l3 O1 }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). H5 p+ Z& w2 t' q4 F
let note (item 2 trade-record-current )
o, R6 O2 g$ n5 L0 G ]set trade-record-current" f, s( L1 S3 l- a9 n
(replace-item 2 trade-record-current (item 3 trade-record-current))
8 A2 `0 Z5 I" e7 D4 Wset trade-record-current
! C+ u7 n) P* Y! k, N- J% _$ m(replace-item 3 trade-record-current note), D7 O' s/ r/ r) R
! g) r' s. m( h1 t5 e! d
, c: q3 s5 M9 B) a( N/ M5 v6 mask customer [
) q8 h) H7 Z( ~& n! `4 kupdate-local-reputation
- c8 T6 {1 u, E! R$ K+ T% Mset trade-record-current
; E: l' T2 t9 Y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 T: e( f% u3 e" B
]% r) k! X: {9 S( b# Y1 c
5 n6 t. r3 d2 \! j3 k1 w
( G B( r' K5 w: Fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# B& U+ P6 l( K/ |0 G6 W v" d, f& t
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& F: K/ c2 ?8 g& O8 `' D7 Y;;将此次交易的记录加入到customer的trade-record-all中* f/ I5 b. f/ h9 E1 e, R, v. W! n! _
end9 n$ |5 e+ p8 n& \: }! R
+ E" A9 k4 W' c0 Z8 e3 v& i; y2 z; vto update-local-reputation, E( ?9 o5 x: ~' w+ h# }" Z
set [trade-record-one-len] of myself length [trade-record-one] of myself) p' k9 [7 v; @! z0 l9 L
E' w. H3 O7 s4 h( Q
/ N" A: ~! Z# N. f0 X6 i4 s;;if [trade-record-one-len] of myself > 3
/ I% a, J& B6 X$ E6 I4 gupdate-neighbor-total# I+ @; B3 j6 d. n7 T5 S8 x& i
;;更新邻居节点的数目,在此进行7 q$ d5 w. X: J
let i 3
7 W9 y2 N7 t5 C9 klet sum-time 0) r1 `+ u( m. h, O2 v, A. n
while[i < [trade-record-one-len] of myself]
a5 f$ g7 l- l% ?[
2 H/ U; a$ i6 Q2 ^. R) |! Fset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 Q' O: E9 T8 D, h. D0 P
set i7 a3 [8 W6 n( h( z- k: r: D
( i + 1); q6 Z e; o5 J4 z+ ]. p
]* Z8 }- F L/ ?
let j 38 |7 m! S7 f+ Q) w1 T4 t
let sum-money 0
: c# ~7 g# [8 g$ k: Swhile[j < [trade-record-one-len] of myself]/ C* z' e- J& [$ j
[
/ \, K+ v3 x5 i3 D1 w* |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 P5 {3 Z6 q% yset j( E8 C" k2 o& g$ g* l
( j + 1)
% }& E! X; \0 s& y7 _]
& f8 [+ g0 A, t9 p/ t" W; alet k 3/ |$ f! u* q: W5 B* Q4 Y
let power 0
2 H9 Y! P& V) A. U2 i9 ilet local 0
8 _: z w9 ?" y3 E. bwhile [k <[trade-record-one-len] of myself]! L) _' v( V! K- _: K
[
@5 x- b X+ r7 q" Bset 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) - c: P$ c* u: ]* X5 F6 i$ B9 D4 q
set k (k + 1)% s; L/ \; i8 p9 p9 f+ }
]& @. ` G! Z3 i
set [local-reputation] of myself (local)
; m( P! m( E$ ~. I4 E/ gend7 b( R( Z" k% Q: Q8 |
5 H2 y) t) E8 a6 k. D- T' d
to update-neighbor-total7 ^# b! b, V! H
, b9 o) n j+ z' Lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]1 ^) ~9 Y8 h. w% R" |
6 f7 b7 k& X7 {) X& L% E
" T9 z; ^1 F4 A3 r% Uend
& k2 F$ W r* o, }& c* ]0 c: F; h0 f F3 \" J4 r; r: c+ _
to update-credibility-ijl
+ @+ C) e7 V, l' I" x4 A2 O% p1 W' G3 ^- K q" H
;;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 B- k- V0 |. N5 }
let l 01 [1 l( J5 [) K- o
while[ l < people ]
* J# A7 h5 K3 }6 Y: W, K P2 D;;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& }. c* s( o: Q- Y$ c! Z! W
[* L8 l9 w. K& y j# L
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" f5 J6 J: p' S7 h0 h/ L: L$ eif (trade-record-one-j-l-len > 3)
# _7 o! y7 U- W& t+ E[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 B2 O8 ]8 V4 E- S6 n. K, P: p7 p6 c
let i 3/ o0 U) V: c. c5 u& U2 ^
let sum-time 0
+ U8 Q$ _* g; x# t8 I3 }! \while[i < trade-record-one-len]
, }# B O3 @6 `9 u" K# H[
, o0 v- @' I% K, j, ^' }4 e- p" ]set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ D k9 w( E( C" r! p
set i- {/ h+ l% x1 C+ S
( i + 1)
6 L+ Y2 N1 m+ y1 A/ j]/ ] M( n8 d$ x. \
let credibility-i-j-l 0
5 @1 a" @( F4 P;;i评价(j对jl的评价)
# L3 j( f* c6 `let j 3
$ w$ t3 |+ a4 G9 v$ h6 Zlet k 4
" h0 l0 g# y! S: j5 X9 z5 \while[j < trade-record-one-len]6 @0 F# S- \/ F# b: p% e/ r3 d/ a8 [
[3 D& X! U; @" m3 C% q& F- ^* n6 B
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 \6 D1 E) |. l( v! @) L6 b8 D
set 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)# F/ I( V9 [! V/ u* u% x& `6 A# U
set j
% h7 b8 w6 W3 V: H; e) @1 g( j + 1)7 k0 Z( p* c+ S
]7 I5 T$ K9 E$ K% K
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 ))
+ ~7 b: F _6 A& G
! o6 i/ w' g) G' d
1 L: @0 J6 y0 n& Q9 z/ v$ h6 J4 w/ `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 d, D0 T/ N+ M: w* U8 ]
;;及时更新i对l的评价质量的评价
- X" n1 G- ] T4 J$ [set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 j1 w. ~# S' K1 y' O
set l (l + 1)
, [+ K* r% B% ~1 t; s$ P5 u]
$ M+ ~( R8 s. j0 e. }; Nend
7 z; {% n2 i4 L6 u: x" @
( c4 {3 m; v: Q: B+ ^to update-credibility-list4 E7 h( y* |& ^" c$ g% G6 c
let i 0
+ f$ j: A' m6 B: `7 Kwhile[i < people]
; C. V3 _$ E H9 X- V" |[
$ H+ b1 w; z+ o/ O1 P& Q8 Alet j 0
3 J e& ?( F' ?% v8 Olet note 03 y" m) ?" s: `6 T; \5 Q, Q1 a3 N
let k 0
. {7 _- }8 H1 `# x6 d0 _;;计作出过评价的邻居节点的数目
! O. ], n: l- z) P! ]4 |while[j < people]
1 w1 a. ^# {% D/ d1 z' `$ X[0 ~: f1 T4 h* R) ~' ]
if (item j( [credibility] of turtle (i + 1)) != -1)& n, `2 V8 N3 ~7 M7 |
;;判断是否给本turtle的评价质量做出过评价的节点; ]& o' D3 T* K
[set note (note + item j ([credibility]of turtle (i + 1)))* V# ~9 G% J7 x! I
;;*(exp (-(people - 2)))/(people - 2))]- H/ P6 G3 h2 H/ W" g) m
set k (k + 1)
/ K; h+ ~* r+ f& \6 i% D]3 _7 y5 D) f( G& \/ A8 v' @
set j (j + 1)
* O1 S Y4 o9 f% l- {]+ o% }9 c/ s: m. b) p' `
set note (note *(exp (- (1 / k)))/ k)9 [7 B0 R6 S0 E4 P( j. }
set credibility-list (replace-item i credibility-list note)
/ S1 Q/ p7 [, t8 qset i (i + 1)
8 u0 O) |" H' ~9 ~6 d]! w3 k7 {3 d$ x B# F
end
5 q" j# t# R h5 r |" A1 @' l( y1 h( |% B
to update-global-reputation-list
2 d$ u) i% y( D+ Elet j 01 f% G; \- H9 {7 K
while[j < people]
" U7 k( r7 U; E[. }( |- w7 W" I
let new 0
8 A( \+ C0 u) a6 p+ X;;暂存新的一个全局声誉
3 A. L; h: W$ d% jlet i 0, A, U& I- t' l3 k" n, l/ H
let sum-money 0
% h2 S) B6 Y( ?+ Klet credibility-money 09 k/ S# L4 V% |5 g" k; [ [' d
while [i < people]5 s* h: z4 M9 [8 D4 _+ \9 t4 w, s
[
/ k5 U. x2 [: }set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* h8 l* ?. ?, N) l# z+ v/ [' ^4 v
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ E5 T# Z' g( I0 k* p
set i (i + 1)
+ b2 @- R( T$ x% t9 \- A! M2 F]
. o8 B" f0 R: W4 j9 b F5 R, j7 `let k 0
: I- L( w% T' w) d! `6 y8 F( v. k& @* h/ Ulet new1 0! i3 p( ~- X8 s
while [k < people]
; D* W7 ?3 }' T. x[( Q2 e3 k6 j1 S6 b
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)
5 n9 }! u% }. E1 D: M) h) m1 Tset k (k + 1)) `. e& r8 O1 m8 {. l0 F" n e
]+ ?4 f! Q L. t8 t: r3 L6 K' m
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : z" O+ f+ {2 i
set global-reputation-list (replace-item j global-reputation-list new)
6 Q. Q. @- o* A+ O$ r/ L: mset j (j + 1)
2 C$ n0 c- P' z$ V# s]
. W% s) `+ |9 c: _* v1 W% Nend
9 |& b, D- p) ]% t6 B* C+ q0 d$ h
" l1 C7 a* {& M! d! Q- U& [: E
7 |( _8 _) q. W3 H5 F" g
to get-color
) s) U5 @, k- q- `
& f! l: R" Z' D5 T! o% l1 F/ a/ O& `" {set color blue
* ]7 W; B" m) Q! Tend
4 q8 ~$ \+ h6 d( v4 [
3 Q: k8 \& [* ~ L0 Tto poll-class1 \; T0 d# t9 d9 c7 E, M/ M1 [
end
# H) K2 K7 d6 u9 y1 L
7 q. T6 J, T. w, ]0 Z* Rto setup-plot1) ^2 `3 o | C$ f6 k# [ E
0 Z2 C$ D) l: A/ R \
set-current-plot "Trends-of-Local-reputation"
& g3 k7 X/ d) g5 w" o% I! G' j9 J' E" V& g0 a
set-plot-x-range 0 xmax' j0 c4 z' O/ c e/ l
4 [9 W1 a3 |, h% b& \
set-plot-y-range 0.0 ymax
: I& s u% s. f% w: N2 k4 k8 dend
1 P+ p7 C9 u& s: _' a3 j. \! t
" c( \8 Q& a" e. K; ^4 [to setup-plot2
; V3 Z+ l/ V: E; k: x) c+ e3 i( f
( N7 O+ o6 x. H& Tset-current-plot "Trends-of-global-reputation"$ f* r* w6 c! X1 U( B
3 {( F& c4 q* l7 ^. w& O! K, x
set-plot-x-range 0 xmax9 _; V: D# |& b& g6 n0 n
- D2 E- k& s% \/ P) J; ]
set-plot-y-range 0.0 ymax7 G1 M4 a0 ?0 x! l
end# F; b/ R+ x. M$ R; R/ r# c6 @
2 r- ^3 I: h _ d" k* N* O/ d
to setup-plot34 _, l2 V! Y, d+ `) P
! c8 L* S4 M1 S2 x" f9 k W! c- Iset-current-plot "Trends-of-credibility": C# w$ A/ K7 {) d+ p
$ W: \9 o" E9 q% Wset-plot-x-range 0 xmax
& M& `' D s" B5 G# X! n6 c0 n5 O" G+ }( u& U
set-plot-y-range 0.0 ymax
5 K$ e% g* Z3 A- m. T* xend
w1 [. c% ?7 d0 ]" `9 c* U% A: E$ a- J* o9 b6 \+ G, @" { X$ Y
to do-plots& V/ H5 X$ ?" A- K: v, X
set-current-plot "Trends-of-Local-reputation"$ @5 r( \' {8 R/ e
set-current-plot-pen "Honest service"
' }* Z+ E. d3 i! i: h+ {) h0 Q0 S" y$ pend2 E8 z0 s+ L% [* A% K k
, ^5 U! [3 q# I' z: r
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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