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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
& o4 S6 Q _# yglobals[) h! ]/ ~ {: [2 X8 s
xmax/ ]$ m, d8 Z) l `5 I1 e
ymax
5 b. {* T( a2 S( }global-reputation-list5 r' {6 }) ]* h: C7 v1 _
: }& A2 u; w! F, u4 s8 J3 f7 g" h8 C;;每一个turtle的全局声誉都存在此LIST中( m, X. q) ?, g- v- J
credibility-list ]6 L- I' U v9 W9 w
;;每一个turtle的评价可信度4 \9 _- L- R* T
honest-service
9 d1 X- u% S- o8 i9 O% ]. g3 {unhonest-service( s1 o" C' d4 f
oscillation
1 D5 u7 e1 U u/ j9 `rand-dynamic* @' Z) R- v8 t- R4 f
]* J, z& q: D- c$ x, t e4 c
2 v2 b; N [% e) |* f! b
turtles-own[
( G& k3 d6 z) t9 o3 L/ P2 gtrade-record-all
& {: n9 X# ^6 i4 R& W' c;;a list of lists,由trade-record-one组成! P4 c& z5 b! c. y* r$ m% `
trade-record-one
* L; U, r9 j9 h- I, O, h) i;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 p1 u7 S( _7 Q9 ~& ~& G* j& Z
$ K7 e7 d( }4 s, c( Q1 s
;;[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]]$ b* ], {# W9 D# w; E, k
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]6 N/ ] n2 }' c" ]4 Q
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+ A3 K0 U1 q# B: u. [
neighbor-total( _2 s4 L( \. p3 J
;;记录该turtle的邻居节点的数目, [3 H; X) W9 @$ l
trade-time
! o' {$ ^" p. Z2 {; e. O% v# S( d;;当前发生交易的turtle的交易时间; b t5 p& f+ I% V. e7 C' @0 \& O. ~
appraise-give
! c+ Q3 E4 x/ @: }5 `, s+ M1 v+ c, h; ^3 y;;当前发生交易时给出的评价 h: T- o/ r, u- w3 o
appraise-receive
) g4 y; s1 ]" z) i- i$ Q* r;;当前发生交易时收到的评价) i3 n; A2 j: H8 D( o/ ^# O
appraise-time
. |; k# o: k, v- F) @' r+ ?;;当前发生交易时的评价时间* C/ O6 \! H/ M
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! Y# H& U7 R+ q6 @* n. x4 u" p
trade-times-total
1 U) m4 B0 X9 R. h. X2 K5 U;;与当前turtle的交易总次数
3 m/ Q% {3 x1 p& e! M/ }trade-money-total: [$ Q8 z. M9 c5 x0 }
;;与当前turtle的交易总金额
" L- C$ w0 R8 n' l: l4 j, qlocal-reputation4 G) i2 {6 K* Y# a8 _0 W
global-reputation
7 r! W' u1 A% d; b7 _; `1 Acredibility! s: ^0 T2 z2 T8 x
;;评价可信度,每次交易后都需要更新
M4 f1 r' ~( M3 b9 tcredibility-all
2 }7 Z9 w. ?' D3 {, f' Q1 h;;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 ~6 }4 v8 k, ]/ ?2 k
$ L$ l7 a" |1 T3 ?% u" _7 ?;;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 e" Z. y! f2 a0 p8 J. G( w
credibility-one: P4 N, u9 n, d. |5 v1 G3 ~9 J
;;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& ?" J) D- K9 N! I! h, @
global-proportion# B9 v4 G" v7 F' E- w" ^% E. n
customer
2 X# q" B2 X4 x% L0 e4 ?customer-no- s; X; ^# H. j8 w* O
trust-ok
$ Q6 F2 t& R# X" i: u% itrade-record-one-len;;trade-record-one的长度7 g0 [+ B. q$ F9 i; V9 Y- L
]3 D& b0 N6 p% J0 H& x
$ d+ Q/ G i4 z6 @ n# H;;setup procedure
7 W9 D ^3 T' ]) {2 j$ ^
" G) H* z& A) u7 U4 m, z5 Q7 Qto setup
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ca+ N) ^8 c5 M1 @$ h
* a x1 @ t% m- T6 u! v d% cinitialize-settings* |3 J4 Y2 T5 Y6 I
0 p: _9 `, P5 D6 mcrt people [setup-turtles]" n( H1 I( k6 f7 h
6 d3 j( b- N4 k, I' o6 U* jreset-timer) ^' Z. Z* m5 m( L+ r
( L# c, d$ [8 A/ F9 R# Vpoll-class
* V3 F, V& ]7 Q& R- t/ M( P- O# K6 N" U
setup-plots
# I. X1 p) H+ ?4 D8 L
( p2 H3 \/ a2 R, Jdo-plots
3 Y8 x; n# p3 [# Aend
7 v$ _; h* ]. M( ?
# i! O* f2 x0 B* X) e- d4 vto initialize-settings& }: \+ r/ h& V6 a' @' w( O# |
3 ~- t7 m7 ^& t0 ^
set global-reputation-list []
; E' V+ K7 E H5 p5 i; a
$ v' `/ I. r) k: r6 Mset credibility-list n-values people [0.5]0 p" e4 h8 x7 r" f
2 T& S( ~: @. X/ U* P% Lset honest-service 0
, p4 m3 O! h4 \4 `. i" `% Y, f* W. Y2 Y4 {. E A" s
set unhonest-service 0
* ?: L0 n% n3 b: H0 \
$ @8 ]6 V( C7 [7 M! Kset oscillation 0
4 F( u- X% Y7 E4 f# R
) ^# }6 w3 G( D* o; Pset rand-dynamic 0
) ?; {9 h4 l% ]0 V! Send. ~3 Z6 W( M6 q0 y* m( I7 g/ L
- i- b+ z8 S, K3 ~
to setup-turtles
' |, I" @: [: c6 k9 i3 Mset shape "person"
' N0 c& _) a1 |* I! V+ Msetxy random-xcor random-ycor
( j8 G8 ?' r6 Mset trade-record-one []
+ B) D" U$ Y. b1 c+ K' b7 b1 v
; U. j7 R$ V+ A1 p: Eset trade-record-all n-values people [(list (? + 1) 0 0)]
9 b& Y" {4 ^7 U; Z3 C$ K% j7 k& S9 f) I% I0 N# a3 p( h
set trade-record-current []1 j, ~) G* N8 d
set credibility-receive []
5 N: z4 N/ k8 m; O+ o, vset local-reputation 0.5
; f0 o# C( w9 q9 C3 Q3 C& L1 U& Jset neighbor-total 0
2 H) D9 }: F3 @( o, I0 }+ pset trade-times-total 0; C7 b/ d/ W: T0 @6 K V5 B" }! T
set trade-money-total 01 P2 ]3 E4 e- D8 G, Z i: u0 A
set customer nobody" L2 w; {# O; J8 S
set credibility-all n-values people [creat-credibility]
8 @) B# O0 q1 b; J3 Z& Rset credibility n-values people [-1]
+ r8 z6 k2 U, [! f( ^- jget-color9 L7 p1 _- Q t1 o8 B0 P8 K
0 |; y' z& L5 G8 `8 V% E' Z0 t
end; A9 f5 F3 J- ~; \( m1 I
1 x1 N3 \& @; W `$ y% i
to-report creat-credibility
/ x0 r! ?4 u% F' h S) V3 L+ {6 \1 breport n-values people [0.5]/ l& ~9 |( v- \$ B" ?
end' [: |' I S7 Y4 y
+ O4 l# ?" Q) s Q
to setup-plots( X$ b- d j; p
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set xmax 30* w* f) M2 _+ }+ P
8 h. L: [. J- ^" ~set ymax 1.0
* L9 E* z: \; N$ p4 P/ w8 _
z3 O# V6 t2 ^! Gclear-all-plots
+ Q' ]/ @% R. G e8 Z0 ]
/ `5 n7 G' T5 f4 Nsetup-plot1
. T! l8 |9 [; T. ^) x9 h+ x4 T
3 a* Z! t# d, l$ ksetup-plot2% L3 }! {! n& `" K |* x
3 t6 k' V2 F; A" b* J+ i0 isetup-plot3- m# W$ i+ T# P7 N+ t: m
end, g: [4 [1 l2 l3 G
8 E6 J% N T3 _ p
;;run time procedures" E9 d8 p, _; F- D! v# u
- o/ c* Z6 a3 a- G6 Lto go; R% a, }0 F; ]5 S
0 L( [8 q' V% F* _. I, k3 C! Task turtles [do-business]
E& W. a0 ^4 R# m4 y5 Jend! V3 Q; h3 k2 a' f6 ~6 k
3 f+ {# R: S& X7 |% d4 |8 Vto do-business
# b7 L3 f4 _' {: o0 F) k5 `1 n
7 E- i: l) B( B, M
. S" z# D2 {4 H8 u; M6 urt random 3607 l+ c( G4 K c" p
9 h# w' b- H$ _9 s2 F% U' s! }
fd 1
& B0 O; r3 N+ D% O# x1 Q5 K# ^/ t( a) H8 F, m" ^% `& }
ifelse(other turtles-here != nobody)[
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5 ^% y/ U" A. c7 d a7 R" ^set customer one-of other turtles-here, y% [0 m: h4 t# _$ J
! K& g: [) v% d. a2 L, S;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
& i* A$ C% r, X[trade-record-all]of self Q5 T5 q% D6 d: p$ ~/ `) B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; z T- J! m" F0 q0 }1 l @& ^! \4 K; g, ?
set [trade-record-one] of customer item (([who] of self) - 1)
8 g, X2 ^3 P. l O[trade-record-all]of customer+ Q8 j3 a3 P4 g }
! [6 N6 K# }% ]4 \% ]
set [trade-record-one-len] of self length [trade-record-one] of self+ ~$ z' V2 W2 R3 u. Z
1 T) j* R8 v' v; K/ ]( g( t3 Uset trade-record-current( list (timer) (random money-upper-limit))
3 V3 c' I' k, Q; L. y6 h; z% z3 z7 C1 T3 ]
ask self [do-trust]5 M. \3 h0 Z$ R/ I
;;先求i对j的信任度* \( [4 w6 V+ q
* d9 H3 o# |: I" s/ I( {
if ([trust-ok] of self)/ \4 a4 A: ]2 y0 M! f$ B! p( Y) l
;;根据i对j的信任度来决定是否与j进行交易[( r) L4 G, G* B# d, ~
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
E8 a2 [$ u1 y& w+ V! L- E3 ^4 S+ [; V1 ?$ }' j
do-trade X7 r: J8 H3 r, b$ p
1 X6 b9 S/ f( b, B1 b9 R3 ^: _
update-credibility-ijl) z% S$ @4 \+ w* x4 c u- a G" M; N3 N
) N- ~" O. h* I O4 r7 N7 `
update-credibility-list
$ [0 D% t7 c& N9 Z1 p5 K: j) H
7 v+ N$ p' _" j) T) s4 e
1 q5 X: T& T- eupdate-global-reputation-list
$ n& ^" X$ L3 N7 |% s8 E, T, {/ N4 M; x% P
poll-class
* h# S. `. W8 |- v/ Z6 n! _+ b! W) v4 t
get-color" F) V5 D- ^' X+ ^* Z' d: D! a. f
3 C1 _9 v" k: H4 r1 n5 f]]
# w2 ]9 s& F1 `
# N) }1 l$ Q3 J;;如果所得的信任度满足条件,则进行交易
9 Y5 T5 `0 ~6 h) V8 R1 B) W G$ ?" Z8 j
[6 F% [4 Y' P; x, L- @% B+ Q/ \
5 P" ~" D4 j/ |/ G6 u7 wrt random 3605 L3 `5 u1 W) m& I
7 m1 `3 C5 j$ E) p
fd 1
* y! I' f! E x
3 e( J: C% r: V$ I0 t]$ l. |4 M b: [$ u) t" Z+ H& y
3 b \* l' v! _& h( Send
) Y/ K0 M. V6 U' E. V. k' c* L$ T* r9 y: {
to do-trust # _* a M$ _1 e
set trust-ok False
0 J w' a/ B- }8 Z r) J. Q/ a4 ~, B3 P# E4 o( [- L+ X; c; g2 r
7 P6 }$ e' B3 P# ylet max-trade-times 0
5 }1 I$ n; A& F/ Vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 g" E* J3 v8 D9 ^8 J) r: u6 Q* dlet max-trade-money 0
- c0 n/ V K) k3 t6 fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; q6 P4 v% s- q, h6 W8 W3 P
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
; r8 N0 a9 `. h" ~9 m) G: `# t
# b: ]# ?1 W6 @# P/ a
( a, @( M; ?, W f; c- kget-global-proportion
. n# \6 k' @6 x- Y6 Qlet trust-value' ]6 e6 F- e# 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)
" T0 ?% O' @9 |" ]# @ nif(trust-value > trade-trust-value)
' }$ d( `4 X0 ?/ Z4 e8 M; i' C2 |" e( G[set trust-ok true]
3 n4 v7 G0 s k# ] W' P9 jend9 B" Z5 c3 x: Y/ g: E# l
0 h9 a5 m& H! F% ^8 X/ R! P
to get-global-proportion# C8 a7 J2 m3 x1 z% I
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 E% Y' {) W" _! U+ {. ~4 A[set global-proportion 0]
0 n: \6 W6 R$ O( e1 s[let i 0) c) @! {% C. t: w1 u( [% A
let sum-money 03 u5 w5 s. Q4 e/ \* P4 w- |
while[ i < people]
/ z' T- Q1 W& J8 ]! n[
7 B8 D) K0 J! X, n9 W3 Fif( length (item i+ L! N6 m- x7 J* x/ v
[trade-record-all] of customer) > 3 )
, Q& i2 @; _5 l+ u: n3 Y[
, Y W- H2 _% Z/ S9 W3 iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 m: e" v! B! n% o1 \9 M% Y]
( u4 ]* W* B0 K3 E8 U* H0 w: ?]5 x, `2 L' c$ \7 t! u
let j 00 t0 U1 s) S# a- r2 {
let note 0
) `8 l. i2 ~% {; Zwhile[ j < people]
u( ?. U' Z8 Q! D2 ^5 ?[% F9 ]( P5 u/ ?! u }& n2 X
if( length (item i7 I) G% p) ]" l' E2 i; e
[trade-record-all] of customer) > 3 )# }2 E8 T: L2 B: n' w
[4 P1 | i2 V$ m
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) U9 y; b* C8 \: x. o I# ?
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% O1 H; W2 G0 N' W[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 H8 k i: K- K7 F]( U6 T9 |$ b4 w- l+ K3 U
]! K9 N4 t( K* x, K/ j- x3 D
set global-proportion note
5 P! {% j0 f/ U]3 Y2 V; R* b0 F$ e' Z6 _
end
; w; v3 {% \( K# V* k& R1 k( D+ J9 P9 h: F% ~
to do-trade
, B/ |" G& W7 U;;这个过程实际上是给双方作出评价的过程1 t+ w7 O" e% d# x$ h
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% S1 n( A1 w+ L% C9 N6 O, _/ q: u8 I3 _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 r1 m' F5 M g% ^- s: lset trade-record-current lput(timer) trade-record-current
5 d. c' P1 c! p+ \;;评价时间) I3 J1 f+ m0 w0 M' n+ Q5 l
ask myself [1 [+ H& x5 Y1 U
update-local-reputation
! e' a3 f$ [+ y w* t+ n: l6 E8 t7 ?; Xset trade-record-current lput([local-reputation] of myself) trade-record-current
) i( }: F0 K2 ?0 i2 Q, q& W]* a7 n9 C0 Y) E7 S) `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! U# ]; n6 ~+ U$ S
;;将此次交易的记录加入到trade-record-one中3 G3 R1 S/ h7 W9 n
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
# w/ L+ c K( {3 S1 [let note (item 2 trade-record-current )
$ B) T0 i/ s5 P' ~- e& \/ V7 rset trade-record-current' s) M( |+ f1 u6 g( f7 U
(replace-item 2 trade-record-current (item 3 trade-record-current))8 S3 v) T9 [1 h: z
set trade-record-current
* A- c& W1 O( e1 s9 y(replace-item 3 trade-record-current note)
6 W3 U. Y1 P3 X
& q# {+ u5 O$ p$ G! s# u( {% {3 h( U8 A/ M4 p+ A- H
ask customer [
5 r/ o1 u$ d4 Q4 I8 c* G( I0 Fupdate-local-reputation
5 O( G& y/ {" p& bset trade-record-current
/ q! M6 f+ |+ B8 O: Y6 m1 X(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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- c$ b2 t) U; ~# W% \: [, o& x' ]) g. s$ m; G; k6 q8 e4 T2 Q
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 j- g. C! e2 p1 q9 L# o
1 Q" i6 a9 q* p9 N% o
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( z7 W2 V. ~" h0 ?; A! Y
;;将此次交易的记录加入到customer的trade-record-all中& S; w2 n+ O& A! {& R, l
end1 t- Z9 _% B9 m P
9 I N9 |- |* {3 J8 Fto update-local-reputation
: I1 t" ]' Z, w s2 G# Aset [trade-record-one-len] of myself length [trade-record-one] of myself" p* u* [# i' q) g
8 F4 L8 L& k. C# T( g
8 l7 T0 U, C& ?# H;;if [trade-record-one-len] of myself > 3
1 b3 V& J h* c: cupdate-neighbor-total9 O. [3 }6 X/ }0 r! P' f
;;更新邻居节点的数目,在此进行5 j- E: h5 V2 E' T: p4 |( a
let i 3
7 u# V. r# S/ Alet sum-time 0
1 a3 {( c5 G+ v9 h! G5 lwhile[i < [trade-record-one-len] of myself]
f3 j* k8 d5 z/ k[
6 o0 E+ c& O0 q/ nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 s/ t0 t0 D! z* n0 Y' G
set i
0 _) U Q# D2 ^: _, r9 S7 g# \& @( i + 1); r5 z, ?, T. l/ J$ T" J- K
]
8 A3 z/ P) G& u. m( ilet j 3& s1 q5 w3 Q/ a3 H5 {
let sum-money 0. F% A7 w0 w8 `# y3 w
while[j < [trade-record-one-len] of myself]: n4 w! c. A) a' \" `6 c
[
9 D' t. o1 m$ o4 r* ?5 l4 p: fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)* K9 F* p$ J5 W% ?5 S
set j
/ C) W2 [7 u" ?! M3 m( j + 1)8 W) B+ t: S- I' K, X' Q- d
]8 z- a) x2 d( u. j& @1 ^4 o; G
let k 3
5 a, |$ F; H5 j8 [3 y7 ?let power 0
6 ?- W% E2 ?6 T5 l6 d1 x6 c: Olet local 0
0 ?4 v# { ?# g' v6 iwhile [k <[trade-record-one-len] of myself]
8 B. E3 }0 Z( \3 s0 z2 g( a[
: z2 m* `9 Q8 N7 B9 w6 Zset 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)
4 X }/ C6 H8 vset k (k + 1). Z& d- i* k0 }; Z! k \
]
! r+ ?+ Q, y6 U4 \4 Mset [local-reputation] of myself (local): |9 {8 j$ j& t: B8 P2 n3 M9 q
end
$ p/ T1 \- c: Y5 s+ ]0 g2 G7 y
0 s3 P f/ W8 Z: _8 }to update-neighbor-total
% M% L0 a4 o8 u J6 K7 |9 p1 B7 S& A9 G4 e& h5 H1 L7 e! V
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. z g' b" k0 W! T6 t$ Z6 j- b
( R: _1 Z F' q# Z
3 ^; y' e4 o9 d+ u' x
end
* [ R. s1 {0 i: U- n
" x# |% R; ^6 b+ Fto update-credibility-ijl ( h4 c _! J; y3 O: E6 m$ r. _* y/ q8 r- P
, O: E! F* U$ 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。; o0 y7 e, K! ^
let l 0
/ j L" H7 W$ n' ~" d. Awhile[ l < people ]
o5 }% s" a0 f;;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
) [3 W2 @% r$ u. b[
- l/ S& v; m' L6 L2 B0 E% xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 ^1 t/ C7 O; T8 L. r8 Y2 _if (trade-record-one-j-l-len > 3)
# p3 [" l( P3 e9 j6 I8 I4 @[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
; P; Q2 }/ V: N8 Y' llet i 3
) |) c0 s0 G& X$ P I9 x+ _6 ~; Ilet sum-time 0, a! F+ ?; K* {5 C4 @: Q }/ f3 O
while[i < trade-record-one-len]
, K9 R0 O- w2 R0 J |$ ~& k[
5 |3 d( ]5 F5 B& tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 |' |2 v5 i) Z' x( T2 U. qset i# X$ i h( A, c4 J
( i + 1)
" w, ]' P& V/ ]7 l, s]
* x9 j& l2 D/ h; e7 Y# Ulet credibility-i-j-l 0
( T W5 ^" r8 o1 |4 ^8 R2 ]1 ]; [;;i评价(j对jl的评价)' E. C d; Q1 r; v
let j 3
{& n4 j/ ~( y% T" A- x& L2 xlet k 4
# X& ]( i) M+ s0 g5 _while[j < trade-record-one-len]5 S" E/ w" Q ~# w8 g G0 _
[
& ~$ }1 _' J7 u3 C ~& L: kwhile [((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/ l1 {- K' ]' b/ U( ]/ l: V" M) 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) A. d1 A8 z. @
set j3 C& v* s4 i& @- \# P% P3 U
( j + 1)
! }: Q! n& B. D: H]" U$ m2 Q, Z0 e2 i0 b
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 U F4 w7 E/ @. H2 G% I7 e4 R7 g+ L( t* |
$ l5 a# o, A; {2 x* @; |; k J
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" U: S9 r0 ]( `" q$ h1 I3 F2 p
;;及时更新i对l的评价质量的评价
! M7 R |& R" t! I+ [5 }- ]$ Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# l8 }! N. Z8 Wset l (l + 1)
9 e* i, n- \# h7 |+ d7 u]9 X6 E; Q3 ^, a: v9 }$ t9 @
end. ], G) A: [0 X/ `* t4 U: G
* x0 a# r1 I0 ~( v+ l" ?- Fto update-credibility-list
/ x P: j3 M# a; u( U8 f+ k) `let i 0! e+ @5 J" d: G. S3 P: c5 ~% s& h
while[i < people]! ? l6 m" c9 A
[
# ]9 h% @ R* \let j 02 t3 b3 J* ~2 z
let note 0
9 \8 a5 n" @( r( W, llet k 06 U2 O7 @& t, P' U, {- I: @" F4 u
;;计作出过评价的邻居节点的数目
# A* ^+ `; I% H8 c: V1 Owhile[j < people]
" m, v, }( A- z9 h: W: Y2 ]% k" L/ S! P[
2 n, n7 Z" ?$ }3 K+ y1 @if (item j( [credibility] of turtle (i + 1)) != -1)
% G0 U* h+ z( [, r2 _% M' \7 U;;判断是否给本turtle的评价质量做出过评价的节点
) i ?, b5 h4 `+ _* m" [3 w[set note (note + item j ([credibility]of turtle (i + 1)))
! c: Z' t% y+ J6 v7 i;;*(exp (-(people - 2)))/(people - 2))]. S; H0 o# V) k
set k (k + 1)- l" j* v" {. T9 T8 R9 c
]
2 D0 l8 R% @. ]6 L2 z" X# Dset j (j + 1)
9 ?* Z B# o. J2 o4 |5 f4 N]
4 c' ^; I9 u4 c1 Aset note (note *(exp (- (1 / k)))/ k)) c# z6 @4 ?0 E: F3 c8 A. v' p
set credibility-list (replace-item i credibility-list note): E* e# F& j+ |5 \ ]0 w7 s/ Q
set i (i + 1)3 ]% p2 }6 `' t" M: _- M, \
]) k+ h( s/ `+ ]0 ?0 B5 F
end1 O5 z% o- y8 H: R z
% y- O" ^' f7 ~, w$ g0 O, ^0 q. Mto update-global-reputation-list) n1 j" n" Z$ D0 K% D. ?/ q7 f4 P
let j 0
% S k. B6 W9 f) R6 a8 d- Wwhile[j < people]3 f) R& p6 |# Z* c
[$ n4 |" U7 ~- b9 ^
let new 0, E- }" m. y5 l. V& `; \% X4 P
;;暂存新的一个全局声誉$ P# b0 `, T, d! o1 r1 |
let i 0
* |* F3 m! _! i* B0 C U. dlet sum-money 0. N# E' D/ I! `9 M4 {5 c' e
let credibility-money 0 p. {$ @ a3 X: }: K
while [i < people]
. d, {* v0 K; _5 \[
3 e1 o4 K. ]: H8 X" n: R3 ^set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); j& I2 Z% D2 X. O0 V8 p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 S! P' D- p; W% A' P4 ?' W
set i (i + 1)
: \1 b: t3 ^1 g# W8 y. o]+ r; a) U8 j% \8 {# T9 ?/ \
let k 0. w4 t- M t. R8 k0 q* \; O5 q
let new1 0" \. J2 q3 c3 I# ~' `
while [k < people]
- w$ b- z& i* |6 l[
$ m# [' v4 g+ R; U2 h5 Vset 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)
6 e* {1 L0 z4 r8 C( Uset k (k + 1)
7 o; l# d% ?' j( h; u, W]
' H+ w& b8 J- H' X6 {, k" M$ t- j: yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & B) g' _. {- N3 x. F+ R0 i
set global-reputation-list (replace-item j global-reputation-list new)
% E. I$ f# r. e! Q" i" Wset j (j + 1)
4 [; A3 K; l- I3 Z/ O! L]
) P- ?$ n1 n5 h9 {% Cend
5 e0 F! T O' v A1 ^7 _: n7 d0 \3 l, H9 \2 I2 w. U
* c( F" P) Y! t" I/ E" {- l n
# C4 h: S, i7 o; s! r: J
to get-color7 x' _4 x3 T2 O4 v; \; H0 U8 ]9 x$ S7 _
: ?7 a6 y' x+ A" w9 Y' d( S0 _set color blue e1 ]$ q+ ?+ m1 K, I: b
end
( ]1 \9 B |1 F! X
* D7 k2 b/ P1 _0 yto poll-class
, J, |4 Z6 p$ t3 l1 |end) `5 t- t" \0 v$ b9 ^6 O/ z
/ ~& S! K) r& ~3 g6 Z- q2 q6 ?& M8 x1 tto setup-plot1
; p {8 {5 L0 c. e5 Z4 Q; \9 Q3 I! Y P. n# L' P- _
set-current-plot "Trends-of-Local-reputation"+ {: F1 M" Q: b" Q( F
! c& t% c; C: X6 \3 rset-plot-x-range 0 xmax- t, x3 R1 O. N
1 G. m7 p6 _. {5 D) N' V vset-plot-y-range 0.0 ymax
8 x: G% T7 x: gend+ P8 Z0 K* J4 n3 b
. X4 Q9 E8 ~7 D6 j: i
to setup-plot2* n R B7 O) ?, L" b
; v2 E$ {3 [* e7 y) o" _1 X5 R4 W8 Cset-current-plot "Trends-of-global-reputation"+ B, l" }) ~, N7 e5 }9 e
. P& k' y3 `1 Iset-plot-x-range 0 xmax
9 B2 W2 D8 ?: z/ W E
/ n. ?4 A/ D; i* Oset-plot-y-range 0.0 ymax& f' I4 z: S& r# ?
end
O# T: Q/ a$ c& i3 t4 U1 j$ Y( W" H1 z; c
to setup-plot35 J1 B( M) t$ y4 R
! ~# `9 D5 b( kset-current-plot "Trends-of-credibility"$ N. S, z/ R# l3 l* C. T
. J/ P- M$ q) O6 B* v
set-plot-x-range 0 xmax4 c7 C- }0 n% |. R8 T* `# D
2 X2 h' W' s: X( Q8 e/ T
set-plot-y-range 0.0 ymax
0 L! a$ j/ O5 yend
6 k. B7 z+ \1 V1 J* s, A5 w( d& l U% Z$ \! g( t3 j) b9 t3 R# C
to do-plots
, O+ b2 @* p8 ?) J& ?6 Vset-current-plot "Trends-of-Local-reputation"
, \ U6 z0 {+ {1 i6 K1 k2 o* yset-current-plot-pen "Honest service"
, Q7 z, h# c" F, gend
9 a* R2 \4 z$ z9 G6 S8 l: N% }6 L2 }" U9 E2 I
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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