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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
+ h ]4 @! S- K# aglobals[5 Z; V; ~8 m, ]; i9 }( L M7 I
xmax7 y) B3 k7 A* a3 ?) M( x
ymax* S) f) U0 i, O
global-reputation-list
( j7 W/ _: g" C) @+ [8 [
' R6 _5 ^/ l W/ b: u9 j' C1 s3 D;;每一个turtle的全局声誉都存在此LIST中9 B* N# H& C9 o
credibility-list& e: x. x; Q3 r+ V& a
;;每一个turtle的评价可信度6 g! V; {. O6 |( h2 y7 T- [
honest-service3 c+ h/ l; Y( g
unhonest-service
7 O" e8 V- ^% \+ f3 y1 Uoscillation H, _. f/ W/ F A* B S! y. @
rand-dynamic
0 i$ w# c7 n5 K k# j7 p% V]
& q& Q9 b5 \$ @) b% n
# p9 d. w( v4 \* aturtles-own[' Q* p; T& z' u v
trade-record-all1 _" U+ a' g4 |# `0 c0 X) `& p/ ^
;;a list of lists,由trade-record-one组成$ r4 P: E3 \( | ?
trade-record-one
6 _! ^8 W; U1 a8 H: t+ r2 h6 Z5 V. p;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. S0 D" F6 c1 C% D: b7 r
. O& O' R+ ^% Q;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
: W/ z3 z6 L6 S( H! Rtrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
. @, s$ L2 h: |# {credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
3 G0 F2 |. W8 N7 m, Mneighbor-total
1 i& @& p! Z% z;;记录该turtle的邻居节点的数目* j: U+ F- u, v2 Q& N: K
trade-time1 g/ g2 x# s# _$ { e
;;当前发生交易的turtle的交易时间
* _5 ?# E3 a" v1 }appraise-give5 X& M, `; x. r9 E
;;当前发生交易时给出的评价
; R% S# r. B0 [appraise-receive: J% _4 h$ k! p$ J @& ?5 {' S
;;当前发生交易时收到的评价
: N2 `9 V; {; v+ v' ~6 qappraise-time
% ^9 x* q# a: z4 N X9 Z& {;;当前发生交易时的评价时间
! D/ a8 V: T' ^* `6 xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
, N- V% i/ r3 ttrade-times-total* H8 k4 i* f4 w
;;与当前turtle的交易总次数# R4 Z7 N6 r, K: L" g
trade-money-total2 T+ Q0 l0 [% `% A5 [+ C9 p
;;与当前turtle的交易总金额7 r: r a: i2 a' M" P1 M8 \) V
local-reputation
3 A1 X- ?* t, A, j+ W6 sglobal-reputation- s+ o( E' S+ N; V' j' P
credibility, D$ K1 J" k. d* I7 H( D# t& n
;;评价可信度,每次交易后都需要更新( @7 Z8 @" U( e$ D: R( P3 W" F
credibility-all: ]3 n7 q) |5 T4 M/ m+ G f3 a. @
;;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
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! J" J. _( }9 U f6 W' |% Z! y;;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/ y! `% s. T% F1 V4 i) p# |
credibility-one4 }+ A8 [- r" Q9 E5 X6 I4 W. }- V
;;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
/ _* O" C6 U- K! z( l# pglobal-proportion
9 Z- s$ X+ k% k0 Ycustomer
K' R0 H! z( l3 gcustomer-no
E9 t# t# L$ N7 [7 E1 itrust-ok a/ m) u4 l* s1 k
trade-record-one-len;;trade-record-one的长度# @* L7 f) M0 t( f' `, b+ W+ I* q1 w
]
?3 m- s: b) L# m# e* E% [
5 |5 t3 P: ?1 `; g3 O;;setup procedure$ A% p! [0 R0 ` x9 E z z
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to setup9 r& i( b* J# n5 N, P0 }8 J3 a; R
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ca
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initialize-settings0 l- ?/ `4 g( X6 k1 c5 z4 g
& g9 K: ?7 C/ }* f4 [! p- ccrt people [setup-turtles]
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& A+ z1 D- j$ f8 I. rreset-timer
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poll-class: V7 O' A' A5 O9 ]4 {
6 _& W. I4 @- N4 d. t
setup-plots$ W! `% ~% O% n3 N! V
* F' D( ?8 W7 p7 ~% `3 P2 o1 Cdo-plots
3 j3 f# Q2 D+ e& _end
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6 S' q: J# E( i4 i' k7 |# qto initialize-settings! F; J, D1 }3 [+ G
0 p3 Q2 Y6 e2 g1 v% l; d7 x6 Cset global-reputation-list []8 o- Z" B3 @2 t1 ?' A& D& s8 q- V
5 E. ?" a# t/ H& N
set credibility-list n-values people [0.5]
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set honest-service 0
$ C1 }( C X4 g( _$ F( y
, w$ m; r' I" r3 Y6 N7 rset unhonest-service 0. K1 T' D. m- a3 c" T. c
$ F8 i3 g" }3 j
set oscillation 04 M: @% s* N4 l0 h5 Y4 J
: S+ S6 J8 K( v/ `) o& Qset rand-dynamic 0/ }6 h" t l- u6 y8 W" K+ t
end* P9 ^" Y5 A/ s' X
7 H" D( @' D$ r& p1 P% U) d+ tto setup-turtles
! I) D. c L" a$ ]! @" a; sset shape "person"* z& l* X; {8 u9 f9 K9 v( W
setxy random-xcor random-ycor8 A3 u% x, O6 G
set trade-record-one [], s1 p9 {% u& A3 n1 k' ]
; W( v+ T& {% }1 y+ }' r( M" k( @set trade-record-all n-values people [(list (? + 1) 0 0)] & k& q- X+ D0 t: N$ g
# \3 K# b8 T# j# {$ o: Z9 K6 i
set trade-record-current []
$ X3 x3 J; H4 }set credibility-receive []! t, A- J+ n/ h: O, `* N2 m
set local-reputation 0.5
4 J, C, v6 W' M/ Iset neighbor-total 0
3 g: m3 x7 Z9 R0 Eset trade-times-total 0
5 ^. c: ?$ v5 `) Q7 wset trade-money-total 0. m* M- q% z1 S4 \- p' O
set customer nobody$ D4 b7 y* `% S- G
set credibility-all n-values people [creat-credibility]
* {* c0 O- z4 }9 aset credibility n-values people [-1]
; q6 O+ |$ t/ W& D# _4 ]" {4 K9 P* Iget-color
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( L7 H7 E' V8 a' F; ]end
3 k) o H1 k- P1 u1 X( H
7 `& d2 O" p7 L9 d0 h7 Yto-report creat-credibility
, [4 t/ [5 r( _5 ^report n-values people [0.5]2 S% k2 g N" V: E
end( O* d" K. i" Y& N
+ X/ \3 N6 B W( Q
to setup-plots; }4 m8 F$ X- f5 l) i( N
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set xmax 30/ }3 e& S9 e4 F: ` Q1 r: H- _
: t" ^$ `7 c, E2 f( uset ymax 1.0! o8 j/ o+ @ F; X
7 n2 I+ q1 l. W* I1 \3 a# k" ?7 ~4 Yclear-all-plots. F, k, r( t" f b! d- P0 v
' x% e* v4 t9 {6 b. m3 T' ]) csetup-plot1
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' {) Y9 F1 z7 L1 _- `setup-plot2
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setup-plot31 m) P# x# q8 \( S
end
/ Y& h3 H, ~+ }
* g: Y F8 ^; m# a;;run time procedures
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to go; ]6 f# e* `" L1 x& H+ z. {! o+ }& }
; x& F' v) Y4 Q7 J- o( Cask turtles [do-business]
& ~2 C& H/ k4 G" Cend
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/ s" F/ `3 o4 ]* J; w. \to do-business
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9 [7 I- [: @; c2 k. r6 @
rt random 360
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fd 1
* |5 [+ x5 @; }7 l3 D5 {6 X+ o( e# g+ x7 d
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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& k% Q8 G" t6 g) Q% E7 _;; set [customer] of customer myself5 |* L1 J1 C R8 F
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set [trade-record-one] of self item (([who] of customer) - 1)
! g# Z4 d3 [+ y1 [' B[trade-record-all]of self: X" }1 t# p; u; s) N" T4 y& W6 A: @
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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# A0 d% U: H: k S; w' L1 jset [trade-record-one] of customer item (([who] of self) - 1)
- t& S# l; @; M, q B2 P9 Q[trade-record-all]of customer) q. R- X2 e" G9 m. ]
+ u3 r1 h; w5 C
set [trade-record-one-len] of self length [trade-record-one] of self- X' O* d$ L- v) d* q8 U3 p G
+ j3 p: n8 X5 A* N- eset trade-record-current( list (timer) (random money-upper-limit))
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) W u# [- W7 j; @5 A$ P+ Vask self [do-trust]6 j- _( w# z3 \4 o$ ]6 U
;;先求i对j的信任度
. {' ?/ {' T: `- \7 a' c% u6 x( p' w6 s. u. [5 ` |% M4 c( Q2 c# `
if ([trust-ok] of self)2 O7 O' {: s$ G- t
;;根据i对j的信任度来决定是否与j进行交易[
7 u# H! X9 U6 P4 [0 G' H5 Cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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1 a+ S) M) k0 B[5 I. t/ U# G- C& r6 O/ z5 U4 a
, N8 v; m) ~: b! \1 X5 |
do-trade
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update-credibility-ijl
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0 ]/ C5 ?. z' i: \ p6 v* G# Yupdate-credibility-list' |$ r9 M# c' N
$ K8 F4 h5 g: i; u) R9 u1 }1 r8 j; J
update-global-reputation-list/ @8 Q) p. [8 w5 h# S8 K
Z0 ]% v9 o) [poll-class
' {, x8 ^" |8 J- p7 ^: ^: n1 Y+ l9 ]; M$ ]. h) g% Y* x
get-color9 Y# r* F( C+ f' k
4 {( }+ D/ x7 H, N]]
A [% T* t: H H7 S0 T4 I+ h( I1 c0 g* {; A4 x+ u: y
;;如果所得的信任度满足条件,则进行交易/ \+ w" t. C+ a" D, f. Q
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[* j$ j7 c' l$ ^" \
0 o2 R& X) h; x4 G
rt random 3609 k1 z# n% z. [, b) q* D
8 D# _+ W) e) V @4 L# O& h o
fd 1
* i% s5 F3 d: ~8 ]) r q4 _& j! m
]# [- f0 \1 d. X) q% R/ i
( U* }: g" F2 J6 u$ r& @end
8 a. }8 S3 L6 I! M. F" p0 M
$ ~# w' t0 ~; l0 s4 E) Eto do-trust
$ g# q; ?, `' _; fset trust-ok False
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+ m1 r& B) }6 `$ e( b3 |3 K5 V9 I* O" E0 q1 `
let max-trade-times 0
& V8 [6 g ?, tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* u, k, g5 L% wlet max-trade-money 0! e, V, H) _% y5 }! i
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 d- h) X# m6 {$ f% w
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 W7 C! |# I1 C( X# a* s4 k5 U \7 I/ Z1 Y
3 B7 X( a4 _, [* kget-global-proportion# Y& w0 S' d( t0 u
let trust-value1 @4 B {9 v7 c8 `
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) u/ f5 \3 M5 c2 H! U. B, o4 |" E- b
if(trust-value > trade-trust-value)3 E, f. Y; V* g& m2 u4 d
[set trust-ok true]
9 |* u# K" @) G$ Rend0 a+ F$ p. b$ P0 F' L0 Y( J* J, d
: m1 @5 F! N' Y8 F* d9 g0 s( u) Pto get-global-proportion5 M- N. d- p# O! V4 L4 R7 T
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- H: w0 Q N# Z7 F[set global-proportion 0]8 e3 B) o/ u6 f1 C: _: R- e
[let i 0
1 ~( q7 F: e* x. i1 B2 ^let sum-money 0
8 @3 w& b( y3 _. y: |+ z. Kwhile[ i < people]; @7 l/ h- i8 j2 g: @0 f- _
[, N7 b2 Y i+ b# I L
if( length (item i
9 w E7 T' E7 w7 `- f4 ^( K[trade-record-all] of customer) > 3 )
& J, D6 U7 v$ b$ c) h[! ?" ]2 v" c5 S' W; e3 `1 t- p
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)), h% Q# T& m7 u2 X
]
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let j 0( h6 W* ]1 S2 {+ N( h- _% T
let note 04 y! B6 k0 M9 `' x
while[ j < people]
8 ^2 L* N0 h; g H[
+ |2 V+ u% ?& f, R; G; V& Fif( length (item i9 {- ]8 e( B' t
[trade-record-all] of customer) > 3 )
F2 J8 S9 ?1 h, d- P[
9 P5 N5 M" R Q |ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 b, R' y# J) Q- J[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 N2 }2 r/ U- W[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]2 P4 k/ S. V$ n
]
1 v, Y' [9 F! O1 u]
1 I& t, o9 F) X3 [( Y7 k& a+ ~set global-proportion note: M, Q% W; L# j/ ^
]( h# Z# V4 Q8 x8 a
end
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to do-trade
' q6 S5 _3 {( `- N) a;;这个过程实际上是给双方作出评价的过程0 T* A+ J, _) X4 E3 M2 l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' u! q% y' n+ k q- \# o* {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 a. M6 d* D' g1 e9 Oset trade-record-current lput(timer) trade-record-current
+ D# z( {- O9 d% ~& E1 V% i;;评价时间/ N. {& t, F" w9 T
ask myself [+ ]: u- I3 \/ ^2 q: G8 _* M' _6 E" L
update-local-reputation$ M2 d3 j/ t# _" s( M
set trade-record-current lput([local-reputation] of myself) trade-record-current9 G' d7 g# A5 r4 N
]
4 O7 N1 Z0 U) C( a$ S/ [set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 X! V+ ~, c3 `4 F
;;将此次交易的记录加入到trade-record-one中
( s" C" S6 b/ t2 ]' aset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* l/ u& X4 G1 {$ d2 J, @
let note (item 2 trade-record-current )
( v( u1 s5 O ?/ b5 `: C% b9 rset trade-record-current3 e7 {5 Q# L% i4 x& a0 K
(replace-item 2 trade-record-current (item 3 trade-record-current))
: U* ^ o% R* Jset trade-record-current* P4 Q# s3 J9 @
(replace-item 3 trade-record-current note)
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) i, Q n$ @% }3 i4 [2 J! \& V1 ]( s0 C" H1 |: ?; H
ask customer [7 p- f% e# g( K! L2 t* O
update-local-reputation
; o2 ^1 r+ n- q( |5 yset trade-record-current1 T. i% a8 j7 U: z* ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 B2 y( n$ b! e) X! D8 f# a
]2 S" W7 ^ S' z- s" I
- r- l; |) L U5 @$ D! p
7 J- ^& u5 p% ]6 }" _& Vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 q8 Q# k& T( m+ d2 M' n5 V
' t7 h6 w( F: g, e& M+ oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* m! J/ \( O7 g* \
;;将此次交易的记录加入到customer的trade-record-all中
+ G5 e8 i# z5 [2 ?- |" f7 b: Iend
0 h: N3 ?9 {9 [4 t: ~9 w3 o, I5 m- ?( a3 f
to update-local-reputation
' U# ?; P; E' {8 Z% oset [trade-record-one-len] of myself length [trade-record-one] of myself
% u7 M( m6 v2 f2 Y+ G7 U) x6 v, { [
" n" J* _( E/ V; B;;if [trade-record-one-len] of myself > 3
6 ], D h3 x, Tupdate-neighbor-total. q8 k% {+ W3 a$ \
;;更新邻居节点的数目,在此进行* A0 g) S; n J7 ]( M
let i 3, n6 H% r" k* B: ~ y
let sum-time 0
9 E4 b p- q% s' Y* ?3 Wwhile[i < [trade-record-one-len] of myself]% Y6 G" c% ?/ b; z3 w
[
2 @% F7 r% X& d C( }set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# t+ r* \1 v; w
set i
7 R& F2 M! F5 j. k4 M( O+ M( i + 1)
, n; |( Q1 g1 t# {; B]% Z7 o9 |: G9 Y: L0 |: B$ l" h
let j 3
! U# a) U7 V6 r4 D7 Xlet sum-money 04 n R+ X, `3 i0 ?2 L
while[j < [trade-record-one-len] of myself]5 U! q1 c$ o4 `+ Y- W
[
. X/ D2 }( M% o5 u. yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time). l8 W: x8 h" P8 a0 Z; C H `$ K; @
set j6 O# z) Q. ~7 r9 W* c! H' f1 g
( j + 1)1 j4 H% `" D' L! S+ x- b
]
; e. N% @5 Y0 Z% _5 n- d/ Vlet k 3, u0 i4 c4 p' `! L* J
let power 0
5 n$ ^4 Z: A; J& ulet local 04 z, B; k, i/ z+ @' F' e9 C" @
while [k <[trade-record-one-len] of myself]
8 g# F8 s) h2 _[ Z1 `% _) }7 Q. J) W6 P$ d
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)
3 A1 F3 X5 \- h7 t& z3 }: C: w& x8 N7 ~set k (k + 1). e* B' u" O1 E( ~! @8 |
]
6 P" j: S) {3 j& T$ H" O: \set [local-reputation] of myself (local)7 _- E2 q( \$ O! a9 u9 H( s
end
3 N, c; Y# \, ?( g/ n
H- Z2 W6 y* G. r( c, ~0 ^+ H" `! q8 Ato update-neighbor-total* W+ I& [, E3 b. f0 K1 F5 E# W
5 q4 t1 U# c8 j z+ |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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! K4 L! L) Y. v ]; bend
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* J o( [# @: J4 t" `0 _to update-credibility-ijl 2 b3 l9 _) Z6 n3 ]) Z( ?" B
! M' I. I% t* q) i( E5 i% J# ?;;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。% d# l! |( K9 a; L
let l 0
. `3 x- k0 u( v2 E- z* h; qwhile[ l < people ]
* t/ i, ?! }6 n0 {- e;;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7 L2 n1 w3 P- g h$ @- V' @
[7 ]# F# Q8 o) a+ W7 C' }
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)" H7 p. M5 _7 o+ t- G* g& ~) \% p) Y( o
if (trade-record-one-j-l-len > 3)6 z- [0 y" N+ J
[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
8 |- O. b# B: f' a# D% flet i 3+ y5 a1 P* t3 K8 ~, ^
let sum-time 0
* f, r) C5 Y* owhile[i < trade-record-one-len]& Q7 m" H+ M, \9 P! ` c1 u
[
7 N4 x! x W/ I- W7 ?: Xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 p/ P0 n# `! L* L E! Q! d9 ]8 M: W3 `set i
h* o" A# e4 p& [) G5 p) `7 T+ e8 d( i + 1)
& b- N4 D. p! e) X5 C- F8 v) w0 |]7 T4 R% z) G4 O6 c1 a
let credibility-i-j-l 0
4 P/ b i6 X3 w+ c+ v;;i评价(j对jl的评价)
$ [' V- q- I8 v/ z" ^" H# alet j 37 P8 m3 ~& f6 f* m- w
let k 40 X4 N6 o) Q; V: {- q7 O4 E" |
while[j < trade-record-one-len]
) }" a) O; i' ]! h7 @[ J7 y4 H5 k) x. H. R: s
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
% j5 |( Z, n. u) C6 C( z, 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); f/ U$ V4 }& a8 Y# J
set j
3 N/ W2 e$ G: }, T) X8 I7 D( j + 1)
R3 s6 l9 [, e% R9 A]1 l& W$ G4 ~3 f
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 ))/ ?( j3 x3 k8 i+ M+ M" d
$ D2 O3 E% _4 Z$ w$ L4 m
/ q; |- |# a# ?) Q; Klet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! e( \; N5 @ y" k: l
;;及时更新i对l的评价质量的评价
& { x7 |& i# V$ E" aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" H' Y/ I; Y/ Y s, r
set l (l + 1)
' Y% u2 u, {. Q7 ~& p5 ~( j+ D& Z]' z' h+ q$ n" p. i! q3 j
end8 b7 P$ M7 N% u) {7 |9 [( \3 |) |/ p
b+ a: J6 b- z" `( g2 Hto update-credibility-list
- @* ]$ Q/ |, m/ F7 J9 qlet i 0+ {; {& q1 [8 M
while[i < people]" m1 u; F$ ?; p/ \8 V6 C5 @
[
0 N5 Z7 h5 H/ \5 ilet j 0
/ c- v% k5 A' Vlet note 0
5 O8 z- m, d5 ?8 B4 rlet k 0
" y7 M5 Q$ h+ M3 e7 g- p;;计作出过评价的邻居节点的数目
6 u: U% B& Q7 ?5 ~1 twhile[j < people]
0 U4 f! I' a' P[, K2 V3 Y9 X! ^
if (item j( [credibility] of turtle (i + 1)) != -1)
" q9 @/ }$ M# F;;判断是否给本turtle的评价质量做出过评价的节点7 Y" [& ]) W+ y" t4 m3 G
[set note (note + item j ([credibility]of turtle (i + 1)))
$ v# J' Y0 k- R;;*(exp (-(people - 2)))/(people - 2))]2 r6 v; ?; `3 s2 {
set k (k + 1)
5 _) C3 {7 {7 v2 \]
0 ^) v1 o9 k& x( D: Wset j (j + 1)
; h0 \! R6 m0 x0 y: F( |+ \- O+ K]. V- p& ^4 N4 {9 N
set note (note *(exp (- (1 / k)))/ k)
& z) r6 X% v# G* w3 h; |set credibility-list (replace-item i credibility-list note)0 Y, n- j. V* v( O( H0 a
set i (i + 1)$ h7 C& D8 I4 ` B. `' J
]
- F0 G o' J( Qend
: D7 w# y4 i. z! h# ^* ]/ P P
& g, u) @' Y) X2 g) o7 \to update-global-reputation-list
" ]& a. B, q+ P9 D" y7 |3 Llet j 0
( E. o" W& S3 b! O) ]6 m& O) z5 awhile[j < people]$ Y) a; b9 [8 ^$ k) h$ {
[
' e4 }2 ^" l2 Jlet new 0: r- w# q/ V! c& J4 U
;;暂存新的一个全局声誉! d9 J& c2 Y. J+ V" R' b
let i 0
; z Y1 Q2 f# x `0 _8 t* Klet sum-money 0" m: O% Q/ G: p. t
let credibility-money 09 T j2 P" {9 C$ J5 P
while [i < people]
2 A7 W1 m" v5 S. a) H" r9 D4 O[
7 P8 R( Z) b$ ^+ c% Nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& ~+ O2 ?. E' _) Zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 [! w) k) \; v, Fset i (i + 1)
2 V: z. B" ^' ]' []3 S$ v' m& V" F; [
let k 0/ x& {, \3 p; t. V5 y: G
let new1 0' t8 m% M, C6 |; J
while [k < people]3 u( q6 u4 j8 l$ T, H9 I" J& C
[
7 H: O) r# 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)
l+ V5 P, z- P$ Tset k (k + 1)
2 l; e+ O; Z2 n9 l- `& g( Z1 }* ^]
" c" q% p- J" ^& H0 a( s8 D5 l9 r0 E- \set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " v3 e6 X) n2 `6 z1 e' U( _
set global-reputation-list (replace-item j global-reputation-list new)$ g+ K$ j# s* A% q6 N* t
set j (j + 1), `9 i' G! w0 E( b
]
3 Z5 ]* \( i; v. xend) }; Q, N4 e7 h) E+ o* _
7 z2 ?, G& e# p; }* U/ [ Q
$ O0 e5 q# H# @ m8 F Q9 [3 l& N# J
+ B/ Y% T B! q T5 p8 Y2 [to get-color
. U1 O! \+ }' n2 Z( N% o4 K4 l; j# ]; g' r
set color blue2 m! [# b6 L4 p$ C
end( S- M1 q/ r, [; H: T4 `* [1 W
2 `+ `. B+ z& T# h+ s1 F; @$ w7 A
to poll-class& x3 b' p* t+ C' {. p' d) p- m
end
5 {2 x2 |9 m+ }' q6 V# ]9 X, o1 W1 L
/ F, T$ X: ^. E- qto setup-plot1
; {/ N( S+ l" I4 |& p F* [: P( {7 G9 y$ j, L- T/ j
set-current-plot "Trends-of-Local-reputation"& ? o, N) V8 o& M( k
9 j# c( [% M2 s6 o, L& R, |$ ]
set-plot-x-range 0 xmax1 D' L; b) l* ^2 O- p* L0 J
+ Z3 U2 V4 `. C& ^( U- Bset-plot-y-range 0.0 ymax. N9 H3 o, ?" u0 `
end" j4 P. G: @5 U( G4 t
5 P# G0 T8 {7 [1 r: X
to setup-plot2
' S0 {+ G9 `$ R4 O, V7 `6 `- h
4 J+ J. c) {+ }5 F, Tset-current-plot "Trends-of-global-reputation"2 X0 q6 p$ R# L, Z/ x# Y. Y
! }- n2 l0 X0 Y* L5 k6 Kset-plot-x-range 0 xmax2 ?: h6 ^3 k# x1 m: l
2 {3 O Z) C: P4 p9 o c
set-plot-y-range 0.0 ymax
: Y' T# D* o6 ]9 z- aend
' b" ]5 c( t7 s( _& k3 H
: a7 J3 C, j" Q+ c+ bto setup-plot3! a" D8 e$ C# J+ j0 i* k
9 s, o; b9 w+ t+ V) c3 [- ~set-current-plot "Trends-of-credibility"0 J* ^0 C1 f+ W. L
/ M2 K( y' M! [# C) ]& x
set-plot-x-range 0 xmax# n0 y& y$ _: q
( O! s. x7 [' J# X6 @
set-plot-y-range 0.0 ymax9 P( }" E% G$ V' l4 h
end$ o4 x# _# K8 j4 Y. Q `
8 H6 X1 ^; I1 l
to do-plots
% W* P- z1 S' G6 p& x% |set-current-plot "Trends-of-Local-reputation"
; T2 Z2 x: V5 Q, Aset-current-plot-pen "Honest service"
8 q% ?' L A8 I+ r \" Fend7 N. b/ f/ m( ]8 }, F. U' e
$ O w5 T/ W/ s9 @0 a4 h# s[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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