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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2 p5 ?9 o, G. X( _; s
globals[
# t- X# f- D5 f% @ exmax f0 J$ B5 P9 z# x
ymax
, H5 u- [; X8 m5 C; Fglobal-reputation-list- W' `6 Z, K& b( {
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;;每一个turtle的全局声誉都存在此LIST中
: w: w' l4 C4 j- O- t0 Q' ~; B8 Ccredibility-list @: n: N6 V" w
;;每一个turtle的评价可信度
; ]2 a6 Q, S2 ~: I* Chonest-service1 ?: a2 u8 t. X) U9 N
unhonest-service& P: a+ [ e8 F
oscillation
7 g4 {9 ?% x* O1 J( Erand-dynamic
$ K4 a3 m( P" ]9 A) ?; o]
7 I9 _$ E+ o/ Y- b0 a
; d; D+ [" p0 u1 c4 c* dturtles-own[- @2 g% l" w& L4 E8 I2 ^5 x
trade-record-all
2 j2 [3 p4 \- k) _;;a list of lists,由trade-record-one组成
! k6 [0 ]7 F+ n4 P& }( ttrade-record-one
* e _& a/ |9 ^( c;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 l# T; u& A3 q) b: O
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;;[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]]! i/ D* v: R r4 H+ l
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 A8 G8 G; P2 j( A
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
7 Q1 r R$ t$ |4 z8 I0 G I1 p% `neighbor-total
1 b% ~7 X) ?) Z6 v3 U& { e0 M;;记录该turtle的邻居节点的数目! f7 m4 i' t4 t/ H8 p4 T1 b
trade-time
9 K7 q; X# o/ o1 E;;当前发生交易的turtle的交易时间$ C* y) A4 p! b f* {" x. \# A
appraise-give
& P" o8 N3 Z6 C" c; z, x;;当前发生交易时给出的评价
3 q0 ~2 I v/ ]1 |5 u5 k" I% S# sappraise-receive! t' F& u. F- G' M1 \. Q
;;当前发生交易时收到的评价
$ r7 G; N& s; w( o2 bappraise-time
\6 M4 Z5 b z8 S& |" L;;当前发生交易时的评价时间# A6 u2 Y2 W' ~) _. {* @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉% S9 M. b9 z7 u, V3 v; O' G
trade-times-total
7 X2 s j' T0 p/ P- e4 Z7 u* x+ @& }4 e;;与当前turtle的交易总次数4 ~1 q0 J8 N% M, d8 |) M4 T7 u2 }( c. b
trade-money-total. G1 @! e3 j% x. w
;;与当前turtle的交易总金额
8 _/ p+ I0 a) _8 u% Z. D- Jlocal-reputation
4 A6 a0 A" S0 |global-reputation7 A" P7 K. E' ^6 L* c
credibility
8 c. K) n9 C$ e$ T6 g4 Q9 K2 u;;评价可信度,每次交易后都需要更新
# d1 X& N1 y1 d$ \* f; Acredibility-all
2 @' i6 b! j f5 M0 \# ^;;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3 D3 T: Q1 K( o
1 t2 ^. i; s: ]7 }& i
;;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
9 w+ t% j, G2 f. Z H& X. Vcredibility-one
) S1 S- \ \, @- N: J$ o0 \% |;;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
7 w- h' O5 Y1 k, ]global-proportion) @! @0 O5 R0 V+ @4 B* s L
customer
* O- Z- K0 r4 y- P, T. mcustomer-no" b+ t$ c' R% ~+ z( w o
trust-ok" a2 q+ U8 _# _
trade-record-one-len;;trade-record-one的长度
6 l' f/ m8 w1 @! d]% u4 I l7 M5 h4 @. q# ]
o9 n" X7 y! C& Y l9 r;;setup procedure
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1 M! T+ C! j' v; `to setup ~& x# Q- U5 h5 z4 I
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ca
7 h/ H/ J$ u3 g5 d4 Y7 m7 ~2 N0 B
0 u6 Q; I5 Q/ p5 e% N; X9 vinitialize-settings
1 ]6 J4 A% {6 @2 M6 y0 T
6 u: D! o" g' D$ r7 j/ H, \crt people [setup-turtles]
3 r) ]# c0 X5 W( m/ F8 U" B
6 `$ V7 w3 e, D. Q9 B3 j7 Preset-timer
7 b9 w" t0 W# T' A- o( T" }
- \( Y* M1 H. ]2 K8 f7 Bpoll-class2 H6 Z% w. K3 l7 S8 k" g: b
% ?9 x4 t3 @- j" @
setup-plots
+ x7 d1 [* k% t | M1 }$ b% X
. @1 G9 ?" \1 Fdo-plots
: J3 I. D. W' d6 S! [) w/ cend
5 z: E, ?6 @0 x- b9 ]. _, b: w
4 R0 A S) H x; F Mto initialize-settings: @) E# z! e* r% I, w- [1 L" w
: I8 C( `! }4 m9 I. j, o3 w/ t# Oset global-reputation-list []
' Z4 \* F& H6 g, p" [8 Y5 ^; d- o) d% c
" U, s* y0 K/ k0 f6 N( o$ Eset credibility-list n-values people [0.5]; q" H) g8 X. _8 ~5 e
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set honest-service 00 \% I* ^- v% k2 q
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set unhonest-service 0& P, n$ {7 \- Y4 C
- d4 w9 N+ @0 H$ ~: n( B; a" L* [set oscillation 0
2 v, q& K- J Y3 }, T. ]; @) [$ _1 f. G$ W1 t, D# Z) L& S- @ K" L L$ l' p
set rand-dynamic 0
: k+ m9 @" q M2 l6 n: pend
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. r+ _2 z; D9 I$ xto setup-turtles ( ~* i% G* L7 A% m! Z* k* e
set shape "person"& `' n! b* n) T; M& ?
setxy random-xcor random-ycor
% o: e) u. I# T+ z/ z( Y/ \) Mset trade-record-one []( k# d' H' M$ ]+ A& o, u
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
: O# h0 ~( }: ?& Z* t4 G6 }) `+ W6 ` }set credibility-receive []
* n* i# o* W' H+ G; y4 Cset local-reputation 0.5
, A* a& h" e, ~, Jset neighbor-total 0
9 z4 O$ I3 T, o1 X; D$ [set trade-times-total 0; X4 b4 G( @8 X; o% J: J- f
set trade-money-total 02 T% J+ Y# U- n( W* A, K
set customer nobody
1 l# L8 W9 [4 w# K2 Qset credibility-all n-values people [creat-credibility]
5 J: S* s! \& |3 @2 `; j- G% eset credibility n-values people [-1]( f" y- i9 m F- V% \* Y# C! ^' y
get-color
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end) v# x" k, }6 A- m
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to-report creat-credibility. O( r/ I; ~. S& T0 f h$ V; s
report n-values people [0.5]: e6 E0 U# i% Y
end i+ T1 H4 m/ u8 T
& \$ H4 @ T, {2 V& u5 x/ k5 m- B* {0 d1 eto setup-plots9 p5 R' F. P& G
2 C7 `* i0 \2 q* B7 Bset xmax 30
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set ymax 1.0
2 w1 X2 V* K. O1 j7 v; ~, u9 _, W+ M2 a, @- V1 I- S. Q$ A
clear-all-plots% j' P Z9 W' V; d
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setup-plot14 o& ^) t4 x4 d% v2 C
8 k$ j9 E4 x2 _3 j! z& Q
setup-plot2- n& l+ D1 Q: Y3 T
, n8 Q3 i) `0 s# g: C1 Nsetup-plot3
% W1 b3 d! K2 u! ^. bend
% j7 G9 @; c( B: C4 Z
' |. E" o' Q8 @! \) Z U a;;run time procedures1 z. f6 |3 i% i- ?6 m& O9 k
& l+ W3 ^! _* ^ V+ G; lto go$ L7 Q1 h* [7 R
& w+ Z* T# [* h/ v2 Y7 C0 [0 M6 v
ask turtles [do-business]( J6 x) o/ c* q
end
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& c8 T, I' I# m& y$ Z; Gto do-business
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& J& M( L Q. Y& z7 c. }& ^( Z5 P% j
rt random 360) v6 @1 L9 P m e
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fd 12 o3 D& \& i/ C
8 [6 R1 n9 M7 T5 y* yifelse(other turtles-here != nobody)[9 A! O* w; x+ \' Y0 q! X. x& q
8 Z& e2 v8 r* `4 F2 n+ ^' C" V+ U
set customer one-of other turtles-here/ {' d* V0 g* @9 F
3 E* ]- H, B& o1 J;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)8 }" c* |2 e/ d" K2 B
[trade-record-all]of self) e" w( P; ~' I' F5 X8 `1 s$ @+ K( ^
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- k* a& x" L9 s0 ?; g; Q
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set [trade-record-one] of customer item (([who] of self) - 1)
' U( A2 x5 e! L8 n& c0 N; _[trade-record-all]of customer; t K( i4 Y: E) B9 W5 n
: U; O6 a1 l( l7 \8 y
set [trade-record-one-len] of self length [trade-record-one] of self
3 D1 d0 `3 b! F" {
, \. j6 G3 J. W" C0 yset trade-record-current( list (timer) (random money-upper-limit))
$ n% i% e5 ~$ A4 Y) `
. }3 Q* `$ ?( x! {2 O( Lask self [do-trust]1 T* j& z" G' k5 [9 B) z# ?4 G5 o
;;先求i对j的信任度1 U4 x0 i* y9 m) d$ @5 B4 s
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if ([trust-ok] of self)
3 u1 v _5 Y. x8 h4 N: _;;根据i对j的信任度来决定是否与j进行交易[ |7 |3 i; U1 z: u8 T3 s' N
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 Z n9 A$ y! b
$ {9 {% U' T, S5 M9 F3 X
[8 O& ?$ ]& Q9 K7 @( j
/ ^* ]1 w7 S% K: O2 a3 w7 w
do-trade: Z- q& m0 C k' K ~! b! c6 k) e
) c: U2 w3 H9 g1 vupdate-credibility-ijl* \5 M% y! b3 }5 Q, \
0 c( m: {. d2 G! ^% I( G1 Uupdate-credibility-list1 F' X$ k6 O0 q) p
4 a; m7 J& v% \- b$ M
7 B9 |! {, k, d0 z; w
update-global-reputation-list5 e6 I+ u( @( K6 ~2 q7 H+ z# I5 T
$ D" a2 ~- o. m; c% A& ]) q
poll-class% C6 ]% m5 ~ @' W& R1 u+ |2 Y
2 Y5 {# {: y1 i3 a: ~5 f/ h
get-color
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6 n5 ]5 x- g- b/ n4 s5 w& d]]
, `1 o! t/ ~4 t- T2 H
% s1 V U J6 W# M+ u5 [& v# A;;如果所得的信任度满足条件,则进行交易
% l, C/ h K. S
7 o: L( C$ x! o[& s+ X9 ^) ]) L; U$ G! u# j1 M0 [! ]
& A& L* g0 s/ P5 c% f; m
rt random 360
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/ l- Z# J% q& }8 z* afd 1
' {2 {& g0 w8 M! V3 ^% o! o
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7 q/ ?4 k! f. R- {end
; ]+ ^; p* a; s
4 P* C% P& B& W( uto do-trust ; ?% I0 T6 N6 O1 N# X: t B
set trust-ok False3 W- I$ c* g) {+ x$ Z4 w3 N. F: A0 A
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) Y$ Q0 O- m% H! z, L v$ qlet max-trade-times 0; W" M, ~ T- H0 v; G/ L6 M3 i
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 {/ r R- o- U
let max-trade-money 0
! l) x; C& H* H0 l1 e+ c% W+ s, zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ e' H$ W# X8 c2 C5 u, 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))
7 Z6 b( z- C/ b. b$ C1 c
: _$ v' ~ J d( \7 }( j3 _6 G
2 Q9 m/ H2 z' ^# y/ e. `/ Hget-global-proportion
2 k, z$ K5 u2 V" \# Vlet trust-value
5 Q8 Z) P9 y* t0 K8 klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)5 D9 Q( E4 o) e; ~* H
if(trust-value > trade-trust-value)
- m7 `; [. v8 T1 `3 e[set trust-ok true] R$ N m6 i7 ^# i; w
end: _2 u: l/ V& ~& l/ p/ u8 `
4 H8 A V u {# l. H" V# P
to get-global-proportion3 w% n% r( S( r5 q: }
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 M' {2 S! F I' d4 m* o[set global-proportion 0]' K! c: y8 L Y% } R4 O
[let i 0( f! x/ o; ` V7 M& w
let sum-money 0
8 X' c& e5 V- F8 o4 @while[ i < people]7 e5 v2 a; N, R. F W2 Z
[8 G: Y& k% q. V& z# s
if( length (item i
; t6 w5 w. ~: h( @[trade-record-all] of customer) > 3 )
8 j G+ l$ \- f9 L3 S* I3 r[
! y( L$ v3 H: @) k1 _2 \set sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ F' R* j8 a E$ y& y
]) r! {& Y+ a- A- Y G
]
9 a0 I2 F3 b" }: P# z4 clet j 0
1 X; I. o$ }4 p4 ]& rlet note 0
; }/ R5 F; O, @' c8 pwhile[ j < people]
8 ?3 W3 ]/ G8 H8 q. e/ g& _[
. l/ X' J$ I& v) L& Bif( length (item i
, y* n: q W8 j4 w" V* K[trade-record-all] of customer) > 3 )
& k0 k9 k; n! m0 ^[0 r- J: s" d9 y! E; F) ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. K y( x4 V4 m[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) t3 \; k7 Q2 N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- f V; S& p, o7 g9 W2 [
]' r* e8 `# S9 c {; }/ Z$ L
]
! P3 M8 Z- v! m( V; }! R" Gset global-proportion note
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end9 X, X/ ]7 a, v% _) B/ M1 e
( u1 @2 l7 x8 m( q* m
to do-trade# n4 a F m6 U0 ^) O8 N
;;这个过程实际上是给双方作出评价的过程
. A+ U: R! l3 l6 e3 Y8 gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 d% A; O4 ~& V) F1 e. \3 X) wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 \: a1 M5 Z: r* oset trade-record-current lput(timer) trade-record-current
$ T& m$ a4 w$ f: _6 F$ W' {+ [;;评价时间5 r a$ U4 j: r8 _7 d8 S, t
ask myself [
6 a9 I. y, z, u4 D( K# V( v% W% i, kupdate-local-reputation: L/ C6 y& M% J% V- G+ }6 @4 j
set trade-record-current lput([local-reputation] of myself) trade-record-current) C$ e( i' y Q7 [. g# L( \
]) V1 t, W$ M; e
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# t5 l4 n! j: _, n0 A N$ k) M;;将此次交易的记录加入到trade-record-one中
7 y5 _ \9 D. a( w# R/ G- ?. w2 \set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 g S+ t% ^- a/ _0 s1 F& ylet note (item 2 trade-record-current ); f# H3 @2 o/ @1 r9 {; d( x
set trade-record-current
$ ^! ~9 t7 x9 l1 q/ ^, N6 b(replace-item 2 trade-record-current (item 3 trade-record-current)), P+ @2 C5 w4 t( L9 `* C5 b* l; V' T
set trade-record-current* i8 T6 n+ C, @! h' |' r2 i
(replace-item 3 trade-record-current note)
9 A- H8 d( x2 }$ H2 F% r% l* k# i% }
# Z4 r$ i" D5 c" _% m6 w9 E
ask customer [' p, ^% q; r4 J! ]2 ]9 t
update-local-reputation
( P' ], j* Y; |1 Vset trade-record-current: _7 |) O; o$ P& B) u8 l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + }/ u+ E2 I, G" z( {4 w+ Y
]# V k3 \! A }0 R4 u% B% {5 [4 S
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8 o9 A4 h8 c! C% W% O2 ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& h$ w" E7 |; N1 H/ B$ z
8 _5 P0 e' z4 }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- Y7 P! h) N6 R+ H. G; ?# u" f
;;将此次交易的记录加入到customer的trade-record-all中! W) l. B7 ]5 T/ x! u
end* f+ F, f3 Z& o) [( ~
5 n+ r3 p. c2 f- Z* g
to update-local-reputation/ I* q/ e/ n' B7 }4 |- A
set [trade-record-one-len] of myself length [trade-record-one] of myself
# y5 \0 B5 P( J0 D* T( Y1 j6 H4 E; y- Z5 D7 F; \" t7 X
/ N, S# L8 [- `3 V, f;;if [trade-record-one-len] of myself > 3 # c# D. F! r4 ]6 o8 x
update-neighbor-total7 Y. ` h) `# B+ {/ m0 G. ]
;;更新邻居节点的数目,在此进行1 X, }. x6 T) i) a6 h0 C
let i 36 |( x+ N. \" a
let sum-time 0
, `' P/ P6 |# F6 U/ V* v( P" Gwhile[i < [trade-record-one-len] of myself]# F$ m5 I$ b! P; J
[
3 [" ?4 k5 T, R& Z3 R3 R3 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( j4 ^0 Z0 A9 r
set i+ Q: F# f4 g( C/ p, c
( i + 1), e% F! H$ \* N; |9 a
]; C& K8 _' ^) q7 _
let j 36 f7 y8 M& I! v, o" E X3 a3 x8 V8 K
let sum-money 0
1 s6 ^+ B" s+ p9 n# n; b$ gwhile[j < [trade-record-one-len] of myself]
- I- J8 @: | S% k8 K) u[
8 D* V" k* {! W sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)5 |+ S- d. ~4 M' j4 X1 \
set j8 G7 n {6 t4 o. ^/ W/ Z
( j + 1); l8 h7 X2 R" O
]5 `! }. s4 V7 u
let k 3( U9 j/ @* a! U$ ?
let power 0
# u+ I2 d M+ {; S, ~let local 0! M2 ?$ C" f5 Z- {1 i
while [k <[trade-record-one-len] of myself]
$ k9 b6 u: y7 h3 S[
( F( l! Q1 r/ C3 W+ K: p& sset 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)
! G4 T! m7 \5 k3 |+ p$ bset k (k + 1); L. z2 k- `$ ]/ l8 V! y5 C
]
6 `7 V6 N0 w1 k8 n1 Vset [local-reputation] of myself (local)
# t/ n! D1 m' E" J$ F" u$ x7 j& d, Zend
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0 w5 _& }* B. y6 E8 Jto update-neighbor-total
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1 t0 I" U- @9 |% j9 s1 mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
8 m G$ }7 }, t
) g# M0 Z/ Q. I8 @3 F$ h( |) ?to update-credibility-ijl
9 ]0 U. k; h- j
( G1 _ |) Z. O; h+ L5 a;;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。6 |' D/ Q3 N% k+ \; |0 z- x5 k
let l 0: g+ Y9 C6 N: H5 q
while[ l < people ]
# ], S8 y: r) R;;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0 C. |* r1 a) `$ Y
[
4 o, m$ y: X. n8 K* ^* @let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) c o" g( b) n: ~, Oif (trade-record-one-j-l-len > 3)
* \& N+ o+ M7 C0 Y' m0 d* 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-one1 M( N8 D1 l% f$ l
let i 3
4 Z1 t2 j" ]. `1 E' }9 plet sum-time 0
4 L. T" ]* g+ mwhile[i < trade-record-one-len]
8 P4 h9 b. p2 ?( k[
. _0 V' h+ X0 lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( x" Z! t8 u* `7 R& B! Fset i
, c6 t& _) f. Q/ {( i + 1)
: \# P6 `2 C/ Y. m5 \: _1 _]
- L! y- X- z H+ mlet credibility-i-j-l 08 F" l1 H' k$ S6 C
;;i评价(j对jl的评价)
; U! ^6 n- I- [' clet j 37 d9 m; Q# A0 \. f1 p
let k 4
( D8 V+ I4 r: P7 i3 n3 {) bwhile[j < trade-record-one-len]; F! `' C. F, C. c* i) f; ]
[
, t. G9 K" y/ _5 p2 e+ b- [; Fwhile [((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- |0 ]( L4 y# e) M7 r2 m- o, s3 _8 L
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)
8 @8 E8 O0 D0 K9 K5 G5 |5 Fset j
3 T. S" z) j0 k& i; d. Q% d( j + 1)( n, Z2 t0 A7 T
]
( w8 }8 L. A- M0 u, p7 t, X0 kset [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 N- x2 i' R/ [: }
' w: G" `1 k } _5 ]6 v
) F i0 n5 g( l+ {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( ?- [& Y9 Q' C0 J. B;;及时更新i对l的评价质量的评价7 u( e2 Y g6 G% d, `( ?8 e0 R
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 V( d4 I1 d# {! `( zset l (l + 1)- E$ ?4 S) m8 y# G; s% y. A
]! F; D: q" [% s- j5 ^
end
5 P" \: K0 _$ b( ~ i3 p& w3 f k7 O, X* y. o* v
to update-credibility-list }, y) m. G* Q
let i 04 G2 v( Q6 s' k: n
while[i < people]5 E- O5 m" m3 [; M1 O7 _
[+ P9 S. o8 Q- k% i
let j 0
. h+ Z) ]$ J4 y" c- J- @! alet note 0
L( W% R# S" u3 E" `let k 0
, a4 }0 ]- G* n;;计作出过评价的邻居节点的数目6 |# D) }+ k; N3 i n
while[j < people]8 ]0 e* R- G" j
[, b4 J: _# g3 ^ s+ z2 n4 s" F
if (item j( [credibility] of turtle (i + 1)) != -1)
* ?% \% O7 r/ A& M;;判断是否给本turtle的评价质量做出过评价的节点
6 x1 X; L; K4 E: N( M" O[set note (note + item j ([credibility]of turtle (i + 1)))
9 H% ? a- |& { Z;;*(exp (-(people - 2)))/(people - 2))]
8 u J% q+ V9 x0 L2 ?+ y& [2 cset k (k + 1)1 i+ A/ M* w1 m z2 x. Q
]
' @% P( g* z. w, W; W8 gset j (j + 1)
8 z7 R$ O: U" h/ z! ]' ?8 _]$ o" m$ w) o; D9 t! f
set note (note *(exp (- (1 / k)))/ k)
0 k0 ~9 c' ~9 A, {set credibility-list (replace-item i credibility-list note)
( L% Y* X% b |+ L. l# iset i (i + 1)
* ]( d9 C, z) S: i+ i+ r% E]3 t( F; z9 f4 T; j! k& d- X
end/ e7 E0 F5 l: Z5 J3 C3 Z
0 d1 s5 t2 R( \% A* L0 n+ V: }
to update-global-reputation-list
* A- [1 h3 l: o% Elet j 0
% ^. u0 n1 U6 F v9 D0 X9 Ywhile[j < people]+ V8 K; i# y5 X: |" ]
[5 R- `# R. ?# m, d
let new 0: _4 v+ Z, v% l0 R, Q& p+ }8 }) R
;;暂存新的一个全局声誉
: u7 m* y: b olet i 0
. y z0 G1 y' k/ y* G0 k4 plet sum-money 0
1 e& Q) j& x Y, Y% y: N1 rlet credibility-money 0: g# A$ H5 e% k
while [i < people]7 v, l# l0 O4 G9 @0 S, \2 ~! q
[% V# ^2 Q& F! p7 Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( X0 p. I( I% _8 t2 Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! Y+ c/ S% r+ ?3 g* |/ j1 L( e
set i (i + 1)
8 a7 j+ g3 n* e8 p* |# r) P]8 D6 J- N8 w" I. V9 E K
let k 0- @! [2 Z7 u- u ? q
let new1 0
H, ^" E8 {1 L4 P Zwhile [k < people]
# B- c. e2 N# j: }0 u8 ?: E8 d1 \[ |% v6 h, [7 p. y$ ^
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)
" G0 N/ ~" w1 c/ c; @set k (k + 1)2 w- R; \/ C' }3 j
]# ~; S9 H& ` `+ k* [7 V
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ W4 Y9 Q. |2 t0 jset global-reputation-list (replace-item j global-reputation-list new)
6 F# f9 Z; G1 \% |% qset j (j + 1)
) u$ F* c: M) D0 L0 o( N]
# n3 k* C0 o1 }end
, G* N1 T+ X1 |$ j1 c' L; Q _ X( D X0 v6 q% [& @( R
" s" U0 p8 A% ]+ ^+ b
- x( l9 X J* e9 jto get-color1 z6 t, I# e) k @; F
: X/ M9 d+ ~. T3 Q1 {2 d) L' B# Bset color blue
! K3 q& Y1 B7 ?" hend b0 N; M6 _ F* I- n0 g. c
3 u. Y, C" i6 J; T
to poll-class
$ l9 k @6 i4 q4 |, {8 S& v9 P2 Fend! o3 A- `+ v6 d. ?1 m
* w j, v' T; l* S- f+ Qto setup-plot1- Y1 j0 x- X) S L( J
5 J5 B$ {( k m1 G5 M+ `5 xset-current-plot "Trends-of-Local-reputation") U* [; d. A% j! i
$ Z8 B" }+ W: l9 ^! T, s
set-plot-x-range 0 xmax
$ r, B# s! k- h! L8 \7 W
$ \; e, C( ^0 g- rset-plot-y-range 0.0 ymax
( k* `9 J$ X- H. O( aend
; s7 L, `8 C! Z' `5 Q/ L9 u9 c" ~$ h% s: u% m. ^7 B' C
to setup-plot2
# }. j& z# M) D! T5 l) t. n/ V1 t1 H7 I) B' E5 p* U1 g
set-current-plot "Trends-of-global-reputation"
* K4 ~" }" T( W9 X. K$ q4 W2 A
& n( a/ J. s3 e3 R. P2 n; u3 bset-plot-x-range 0 xmax
[" p) E3 w" j' n& H# N
& w' F" p5 t& w0 ]set-plot-y-range 0.0 ymax
- |- y2 J) s+ h: kend
1 G7 H1 P) ?& p. s- W
3 i3 i; [' y% X4 W$ M8 Eto setup-plot3 [4 K' D$ {9 C+ s1 i4 d z* ^
4 f& V* i m# B+ A6 ?6 M/ t0 x$ J, w V, R
set-current-plot "Trends-of-credibility"2 u; T; r6 K1 r9 H
7 P/ P: K6 @9 ]% q( h4 Yset-plot-x-range 0 xmax! j# T4 V$ M+ I4 ~( A! ]. L- q
Q# n) Q/ Q3 G$ u1 @set-plot-y-range 0.0 ymax) [5 u; H5 V3 S# v( m+ Q. z
end
3 ^5 n% V* }- x T3 e* ~% e! |7 c5 k) k8 b7 l" n
to do-plots2 [& d# X9 O3 h; i7 ?0 n
set-current-plot "Trends-of-Local-reputation"9 E# e( m( L& Q. `+ w9 J8 C& k
set-current-plot-pen "Honest service"
, K" M8 t# `( {0 i1 s( jend! T2 N& W% m+ |' M+ o
1 [3 q2 e; H4 K3 V8 V
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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