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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1 t. b% N+ y. S2 S+ ^" R# Q
globals[, A0 V8 ~& a9 i; p
xmax
, C n, k# V0 y: Kymax( s5 H1 Z8 h+ t" [; p, w! R% z
global-reputation-list) G5 @* Y( d- z E) R2 d- o
8 @6 ]" X8 P$ M;;每一个turtle的全局声誉都存在此LIST中* M; A. I8 M" r: W+ a
credibility-list9 A {3 T0 d- e6 j9 ]6 n
;;每一个turtle的评价可信度
+ f4 U! n; ?. i3 g# F% ]: \honest-service8 {7 S" F. ]( [( M# M7 \& O; Y
unhonest-service
& U; `7 y" l m+ r; R Qoscillation6 G0 Y# c4 a1 |
rand-dynamic+ j5 p5 H. k2 y1 H9 m3 B" k
]
3 t2 k2 o5 z7 ^: Y' ?
. V5 d1 {1 v4 b* v* o7 }' `turtles-own[
' U# S7 x+ [) x( R, v+ h% Gtrade-record-all3 j" `, U! v k
;;a list of lists,由trade-record-one组成" m5 W$ x- R* H4 I+ B6 V+ w9 m
trade-record-one
. ?2 }' l9 p. ?5 n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) T; ?1 e9 ^8 c2 u4 ]
7 W; H; X7 y3 F5 x$ w0 G
;;[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]]$ k6 q( O0 L8 q( n9 t F9 v" k9 r
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]+ @1 O( R! p0 J- S
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" `6 h b% {/ {; k! h
neighbor-total
* X3 w, q! `" V0 T- O) J+ s;;记录该turtle的邻居节点的数目8 B* t' G& R( {: M3 a
trade-time; V; L9 U: i- L' e! I
;;当前发生交易的turtle的交易时间; y* u, l) Q$ G
appraise-give
& l' H% `5 x/ G4 A- F4 |" G0 M;;当前发生交易时给出的评价
: M! N3 [7 G( U7 t0 F4 uappraise-receive4 b u: \7 z8 p4 N$ W
;;当前发生交易时收到的评价/ v& s8 ^" y7 U. k* a0 d2 o/ u
appraise-time
* q2 X# y" G7 l1 Q6 D;;当前发生交易时的评价时间) C: q+ N6 ~2 D
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( G9 ^% u0 Y6 V# G
trade-times-total
`! f6 A7 x$ t& c* {, R;;与当前turtle的交易总次数, D) [- e$ x7 N
trade-money-total
, A, c3 F/ _+ p- O1 B9 B; P;;与当前turtle的交易总金额
" V; B# ]: C2 ~; w9 K; n: elocal-reputation
* G- B8 Q0 h3 T' i! dglobal-reputation
0 X8 C! f6 K" Xcredibility" j. k$ J# g5 }# z$ a
;;评价可信度,每次交易后都需要更新
$ \8 J8 }/ P: t' h9 E; ycredibility-all& ^- v; g1 T! W% g; b$ |, z
;;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
9 |- z! o0 ]. y9 C0 n) z/ X x+ i R/ O
;;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0.59 X) L; `7 Z; \0 g( r
credibility-one
6 {5 t/ U7 g# G7 \4 r# q;;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' v, T( x+ b, C4 k. o
global-proportion
/ X O: e9 e3 }6 ^. j, vcustomer9 ?! ]3 a+ T7 O4 p, G' `5 U
customer-no
8 G) b& t) W5 E( ?5 Qtrust-ok2 g" M7 o, b2 B: _
trade-record-one-len;;trade-record-one的长度% H j! v% J2 d. y( K/ Y6 N
]$ `; P' _9 Z' p$ A: E
} V' ?+ f4 {! H;;setup procedure' m$ j( G) X7 I" d- l4 k
# I# w" r- y( K. Z
to setup
6 W' a2 _! y5 f) |1 z0 Q) e3 i1 v3 b8 z1 l1 d7 f0 S: D% }; O) {
ca. J: Q* C7 c/ a
% u* ~/ {4 C1 J/ _
initialize-settings
. U! a2 Z' c1 q4 f7 ]8 r" Y; t. r' S+ A6 B5 J7 y2 @
crt people [setup-turtles]+ Z' W+ p d+ f
! A/ [1 h/ `. |reset-timer
[1 U/ i3 Q6 D9 x# A$ ], o5 d/ D2 T0 O
poll-class
9 ]/ Z, A2 [# O2 F# D
* l* G$ @$ u& U$ y, Hsetup-plots( o6 j: a* E. O* e, v4 g
- X+ C* _8 S1 ^; A, Wdo-plots
4 |2 p5 A7 r4 _9 Iend
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to initialize-settings
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set global-reputation-list []
4 C# J* \' i+ C7 _8 V5 A) m( N
. F- A; o# ^' v: [set credibility-list n-values people [0.5]
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set honest-service 0
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set unhonest-service 0
5 i. k' r& `. S! P4 [5 k/ E
) w6 M) S: Y9 \$ ~, Fset oscillation 01 m; O# r: ^+ n Y" @, c. V. s! v
# D9 V8 v: a- w# o
set rand-dynamic 0: n3 `: c/ g) L3 X# S8 [; X5 R
end3 J! j6 c8 r! z0 f1 o
1 j2 U2 T, s, @) j# ~
to setup-turtles " {( M3 H3 G3 Z4 F: R- R6 V! c) E
set shape "person"
( W: b+ a; ^: p3 Q" a5 ysetxy random-xcor random-ycor
# X$ I3 {% Q! d6 M! Vset trade-record-one []" m" h1 o. D* \. O0 A* L
* _7 U& K! ~, H3 ^" Qset trade-record-all n-values people [(list (? + 1) 0 0)]
0 q6 S0 P# \2 B3 ~2 k0 {/ Q7 E+ ]: _8 D+ e4 `# }
set trade-record-current []
8 F3 j/ b8 K2 A8 tset credibility-receive []
7 I, D/ F" v8 {- \* O$ ~: B( rset local-reputation 0.5. T4 G7 Q- @7 C( z4 s0 y* t" N6 v
set neighbor-total 09 w- k6 H2 F, @. G; n& [- g
set trade-times-total 04 f1 n8 r5 O7 ]' _
set trade-money-total 0
6 P- l N( X% q( |0 Oset customer nobody O6 p# K1 r* s" {
set credibility-all n-values people [creat-credibility]* M& Q' l9 x- ^: F
set credibility n-values people [-1]
- j# i$ _( x9 E" D: Aget-color
4 i" Q' I l; j7 f6 A, R" R# p% k
% H; u. F* r4 }0 ~2 D# Qend
* v# `9 P( O* E* D
" ~/ B1 b w1 Y7 s# K9 eto-report creat-credibility' W8 F D$ v, l) [, V7 c
report n-values people [0.5]
& X- n8 ~9 h* o+ Z# I5 vend
8 b" m7 j- b; [+ B, j' V+ @$ O$ p' l* \" E1 z9 H
to setup-plots
4 F2 t. a; ?$ ~$ y- V' ]1 w5 A% v5 T
! M& U3 i6 r& v" a) e; ^' Gset xmax 30
1 p5 ?- j3 \! W6 l' u& K+ u' i. Q" K% g( R/ \6 J3 O+ N5 h+ p& M
set ymax 1.0* R7 V- w5 P) b# l5 e5 |
* w9 ]/ y( v+ Z8 L2 p
clear-all-plots
1 p$ s$ [4 W# a: j6 T: c
5 A. E- i5 v! {4 r: h; Usetup-plot1
+ O0 T% T9 w: b' A2 o; t& h! F* @8 l
0 T! x% J) K/ Z! y$ G8 e3 N8 Xsetup-plot2
: F! L/ q# A3 ~2 h# r+ p$ O1 F3 W- t; a- g& [+ v
setup-plot3
( i6 {( `+ l2 n" T6 Oend
7 s- E/ A" Q; [% o" M- H4 b# o
9 F8 x6 ]0 P$ H# D0 W/ V! y;;run time procedures
1 f% m- {' t( q8 `9 [2 K7 H- j: X2 \4 M. d k" |& }
to go0 h& B# \4 F& W5 }( o
9 I0 j+ t) d& `4 z) s5 F
ask turtles [do-business]% N9 r& E% W+ T; C" ^4 q/ k2 ~$ R: {
end
3 \: ~ T. ~& A, n
: a# a5 p: K. q6 i+ H/ v4 j9 [to do-business # U1 |- M: O0 @, F
# v: g; p0 s4 [. w2 z) ~- F
" \3 A. \9 e' }rt random 360
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fd 1% n7 T2 I' s" G/ |
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ifelse(other turtles-here != nobody)[& q! @% u( L! J, L* ^
A5 h5 ^5 C0 K' ]& `& v' D8 l
set customer one-of other turtles-here
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;; set [customer] of customer myself
, Q4 i- A# c3 I( k! ~" x+ S
( C; `, h. F0 f6 }' Eset [trade-record-one] of self item (([who] of customer) - 1)
& ]- D/ y# w; T0 X J N* W3 p[trade-record-all]of self. C; Y5 c) U j# ^: i5 |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 P9 C% W# ^& I8 }8 V
9 b7 }% q7 R4 ]set [trade-record-one] of customer item (([who] of self) - 1)4 L8 {8 x; S( ~0 _9 Q4 B
[trade-record-all]of customer& b; q/ p$ i5 m: Q
; {* X8 v2 r! v
set [trade-record-one-len] of self length [trade-record-one] of self
! u0 g3 v0 V. s6 v& \, z. T( z8 r1 g* d6 C; D6 ^
set trade-record-current( list (timer) (random money-upper-limit))" E7 A8 s9 y) R6 t
/ g5 @+ e$ P- e) {) Z
ask self [do-trust]
4 K, i0 C$ J, d! @;;先求i对j的信任度/ p9 N% K6 ~# O; O& H, a* c
) L: C( q4 `+ H! L' v' \( Jif ([trust-ok] of self)
# U r& ~, ^# i+ C2 E; |9 O, [! K;;根据i对j的信任度来决定是否与j进行交易[; s: M, K4 s3 K/ q! u0 v! V. I
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 F! W% v& ] u: c7 m8 W
( k: k& ~5 r3 g; h4 ^: G* b[% Q8 D, ?4 Y4 d, ?. @+ A
. I4 c0 d( G3 J8 w0 edo-trade8 N4 F2 i7 x1 R; C) C# k/ n
' x; F$ B* k) S7 V( lupdate-credibility-ijl1 v2 W8 |6 C3 v7 |& {' A/ O4 U
8 V- g& u% C* a2 {. G% {
update-credibility-list
. [, _, m9 v& I2 f& D }- ~, N0 B" C- M
( g: o- w( b0 i4 O P7 |
update-global-reputation-list
+ V' H: G, r0 T; Q8 F/ F& p) C) Q+ @7 f6 g
poll-class! G0 [2 W: v* E2 F9 y1 W5 h$ m
0 _8 {5 u# B# r1 J9 ~: Cget-color4 b' a' z- P" U) y4 k6 o
% b& {8 V5 ^8 g! K5 v]]+ l5 s$ V" F# {* {
! j5 D/ S5 T8 _( G/ p
;;如果所得的信任度满足条件,则进行交易% E7 l9 X; V- T0 }
! W1 F# j0 c: j0 @0 V& A
[3 F. f8 s" f9 f/ P' P, g9 ]1 P% ~
' m2 d* [. a* v" A% W5 H
rt random 360
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fd 1
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& Z$ P! N% B9 J) }- [" v]
: V0 w& R6 N) ?" @/ H! K5 G z5 R- W7 G _/ _ O; `
end
! D* |# k2 x5 |1 X- r/ @
/ H$ T, f& D* }to do-trust
E: F! m) s ~ }- v* J5 nset trust-ok False7 ` v( f& |5 R: Z' Y" _$ R
2 K3 F4 ^) @1 T. k; ~5 u$ s8 F6 u) U- k7 F6 v1 X9 V" B7 W) C' y
let max-trade-times 0
! H2 r g1 Z& q! Q$ a, Hforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; @! S! E8 Q) ^5 V$ U0 `6 flet max-trade-money 0+ j: F% u% M# D( n, ]' C
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 o5 w3 J, l& K1 e. K! F9 R4 H3 Dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 w! ]( t" @9 {" V( z3 i! ]
, u3 y3 F" y9 H
& E' _2 _* X$ ^* L# I, Cget-global-proportion
1 ?. V% X0 \& i: b* Flet trust-value
8 e) R4 Z9 z# H- zlocal-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 [6 N4 p
if(trust-value > trade-trust-value)
$ o' m2 q) f6 }& x' L( e- C[set trust-ok true] W2 l, p2 W; I
end
x+ ~0 Z$ _6 v. J; y
q j7 u+ o7 _ r Z3 ~to get-global-proportion
+ u9 @" L; p* w# u; l! {6 Vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" b8 ?8 m- d i; o( x, G[set global-proportion 0]
7 u' T* I9 `/ k( H8 X- |5 Y$ l[let i 0
" K3 j' \, r$ y! [0 g1 X }6 Llet sum-money 0
5 D& {* m0 k1 n# swhile[ i < people]
c+ T9 Y6 u3 O6 a% L) g# J[
- F% ]( I: f C' _0 _" b& k- \. qif( length (item i2 v3 A: N6 ~8 V0 t7 \
[trade-record-all] of customer) > 3 )* S2 R3 i; c. v& Z8 R
[
/ i+ W% @* `1 f4 n* \9 Aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ u2 R2 S9 {: @# k
]/ ]- o+ i; {2 y, `3 Z9 s% Q3 q
]
( r+ f4 j* s* R6 jlet j 0
: a. |9 {8 i {7 ylet note 0
. d p9 z9 w- ~% c5 Iwhile[ j < people]
2 e/ y- E X. E+ e[
0 R% S$ d N8 Jif( length (item i
X8 g0 u1 }+ ^: Q% g3 m! G[trade-record-all] of customer) > 3 )
1 G# G) s: @' K c/ `8 g. E6 E% G2 o[
& Q \& C' C" |5 z" [ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! d2 O7 ~; v7 ^
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 ?9 ]- ~' A! T0 \; p[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 W) p8 |; W/ J3 u3 j/ K" n* Q3 j1 u]
* j/ B, }9 C: S. l8 ?( [# e. E]
$ e2 V( z9 D0 ]1 ?/ Fset global-proportion note& j; j0 @3 w% b' S4 v c; ?- _
]: ?1 r0 [5 o; A W# A* f
end
7 j f: F' p- B: k4 D& T/ x/ Q1 t& r$ [$ n3 c& w5 w/ U* ~) P
to do-trade) t' N9 A0 K+ m8 u# w& j
;;这个过程实际上是给双方作出评价的过程, @ p# S, m& V3 M
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 N0 ]; C3 G) |. a" N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 Q6 J4 }5 K$ x7 c
set trade-record-current lput(timer) trade-record-current
9 r( v9 z9 I1 U% ~4 k! u;;评价时间+ B3 [& R1 t# w8 Z' j- x2 X6 W
ask myself [% i9 @/ [9 i3 \7 Q1 f3 T( J& M
update-local-reputation# a; u4 ]! F! @
set trade-record-current lput([local-reputation] of myself) trade-record-current
% O3 m% p. ]# @# A/ E]
" \* l8 V% P, w- eset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* w2 U9 x4 X" r6 u/ n;;将此次交易的记录加入到trade-record-one中* x0 p5 \; d9 @# G& Z. b
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 @& E, p3 L: b- flet note (item 2 trade-record-current )
% I9 ^3 A% u" ?: lset trade-record-current
& v' [4 K7 R$ [' z- J2 N( r1 e(replace-item 2 trade-record-current (item 3 trade-record-current))
2 C6 O7 F9 v7 x6 y. c; \4 x Fset trade-record-current+ d6 _7 t- @% g0 ^. N
(replace-item 3 trade-record-current note): ~9 `! y8 |$ r2 G0 V
4 t2 y" W, r1 @+ U! B% n) K, n7 y r, h0 a
ask customer [
; h; H4 |* N, M/ ^3 |) b1 F- S# Hupdate-local-reputation# ~( u$ F' _& `! I: P$ L
set trade-record-current9 o" V, A# x9 q% O7 e
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 D8 C. Y# ?* j
]" n+ U. d$ K q& `0 a. t+ P
; A7 _% N/ d ]' J
6 ~" K& M4 I- |set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! x( `" N6 v1 i, \1 B- a; g
' @4 i4 o% {. x7 Y6 ~+ }- Z/ o
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 C5 O& W& J- y0 j2 Y, \
;;将此次交易的记录加入到customer的trade-record-all中
1 w L8 Z9 h# |: E& f" N8 Uend
+ k2 m4 V" s4 m% |% Q3 T$ G% F2 M' t, D4 i; W; U m0 a8 a: x
to update-local-reputation
1 ]/ O0 `4 ]3 B$ dset [trade-record-one-len] of myself length [trade-record-one] of myself& W$ p" r" G) {: Z+ p2 X2 ?+ \' z" j
4 } n7 k7 Q. C/ O2 B! }. o" C
;;if [trade-record-one-len] of myself > 3 # O# D* j) N& M) h6 i' u6 W1 r! i
update-neighbor-total5 x; o8 o# p0 S/ R2 S/ d% U/ A
;;更新邻居节点的数目,在此进行
+ f; r! Y1 C/ m7 }2 i6 K) ?# g7 dlet i 3
5 I. O p1 x0 w; I slet sum-time 0
& A- x8 M" H9 F: T; Hwhile[i < [trade-record-one-len] of myself]# F' k4 M3 R) Y; E/ s1 m# @
[: Y$ d" [$ E! a/ i3 ]+ O' ]0 b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 K+ Q- Z/ D9 P5 o2 Z
set i
, \8 K9 t+ V& C4 h1 }- W% I( i + 1)
n4 _, u, P' d/ G1 c* J" g- Y]3 J+ g8 C: Q8 @0 s
let j 3: N- I+ B+ M+ \3 X/ Y
let sum-money 0! {2 y1 I$ `6 B1 O1 t* q
while[j < [trade-record-one-len] of myself]# C2 k5 B1 ]& r( o4 t
[
9 \/ Q" |3 b! Y) w8 h& U3 i1 xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)4 e6 C" y, I' q
set j
% w$ m) [5 U+ R( j + 1)
% T! d: I! o" q4 ^& I]% g' g$ G- X- I# n3 c7 r( F5 k& K, @
let k 3
% {1 w# i2 R% x0 M( |' s8 y7 d. nlet power 0
( ?* d0 U0 C3 ]0 ilet local 0- ?. K6 s( q6 g3 t1 _- h
while [k <[trade-record-one-len] of myself]
' {* P1 l9 W+ [[; D' A$ r4 u4 j1 ?; d7 x3 V+ W$ m
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 O6 K; _, P- Vset k (k + 1)% e) b" j4 p# I
]- Z4 f4 J+ w2 c- e5 [
set [local-reputation] of myself (local). v% h0 u/ ?- k* }5 L
end
# ?4 J, r7 I, d1 S" U7 X
( R5 P d, F, d+ H3 o# [to update-neighbor-total
* N' {9 h& j0 p5 w+ z( X* q
( ?- ]0 @: _0 e) Lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 |3 \8 \) h3 V, L% z- u! {' @9 N& S8 q1 Y+ n7 ^8 B
i2 e: z0 P" K+ _3 A0 n
end
" q4 z: M: o! D# [0 W# R: l V A7 p/ d& N
to update-credibility-ijl 8 l# I' o5 c6 @" b* f5 @2 h; J
5 Y; Y$ u1 z) @1 n' n2 M* l0 Q;;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。1 |9 V) J* S1 K6 n
let l 03 P' ~3 ]* F& n" S
while[ l < people ]
7 N& |; Z, f# ^, z;;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 W% l2 I6 _6 \! E) r4 _: y[) i4 l- p8 l3 u3 l+ q3 j
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 i6 }8 m: ~! R8 n% i
if (trade-record-one-j-l-len > 3)
) P3 e+ H; {6 Z, u$ b[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
, Z) b5 T" I! H4 ]# elet i 3
# U9 S$ W. W/ n- Ulet sum-time 0
, Z( R7 W1 g9 A! Y$ cwhile[i < trade-record-one-len]+ L! v N( H; d" ^' Y
[
" Y3 J+ {8 U& ]8 I9 y5 f2 E4 O+ sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. B$ D. f9 e5 ^! n+ |; Qset i
6 _ l8 l0 F, _/ E9 k, p2 q' f( i + 1)
Q. W( k- N7 H6 E]- c9 C, H- f9 e- O) M) G2 ~
let credibility-i-j-l 07 I- P& n' S2 y0 E. I5 u
;;i评价(j对jl的评价)0 E$ R+ u+ E# @1 Z: {
let j 3
q* o" m* P9 F0 G3 m7 `2 mlet k 4; |: I/ R; i' y2 q4 p3 y
while[j < trade-record-one-len]
9 v `# R( ~. c9 T4 E0 E8 @[
* k, M6 O& \/ R3 b5 I- V0 ~+ [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
' ^9 b8 M; ^3 oset 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)6 M9 T. r+ s: q1 E1 C, l
set j3 r* o3 R5 u- M0 I
( j + 1)
* A+ B5 j$ N+ A _, M# u]6 X9 w5 j: t0 F9 a4 y. j
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 ))
$ _0 J* L$ a x) _$ f, a7 ?; S% p5 F' G
$ B* {/ g$ ?$ s& j, \5 t) f3 [6 Clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) g/ M; J% T7 `3 v0 ^- k: Y+ o- Q;;及时更新i对l的评价质量的评价. }$ C8 s8 Q1 d0 ]$ j6 T/ K0 z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' `8 B C1 v1 h. p/ m) l0 T' Lset l (l + 1)# w% \1 \/ _& v' h. f; v: z0 A: [
]) r7 _( n$ @) g7 W1 Z8 `7 Y
end8 B4 a/ u5 X4 @3 [! b/ Z0 V# o
! Y$ [6 ~1 I4 f- E" z7 [
to update-credibility-list7 t2 [, f0 v5 T% j
let i 0
9 v( v$ n% ] n- P: owhile[i < people]
+ w0 J p! ]* G& H$ D F& e[
8 k% T. _- Z; ?' @0 g+ h1 glet j 0
- M: x# z! g0 J) Llet note 0
) w- j6 l6 s+ t" @0 T( Elet k 0
: s4 h' X# a. H! A" Y;;计作出过评价的邻居节点的数目 B# D, t# v5 c' P; ?
while[j < people]/ _# v; N' i, n6 h, {1 L# W( m' \
[
( A; L* z8 {7 d: wif (item j( [credibility] of turtle (i + 1)) != -1)6 n2 T, ~ h- D) U/ x; @- H6 I
;;判断是否给本turtle的评价质量做出过评价的节点 d9 }& \3 {1 S5 q( F8 v# d
[set note (note + item j ([credibility]of turtle (i + 1)))# M' C1 r: A( J; P4 r
;;*(exp (-(people - 2)))/(people - 2))]
% I2 _! m, i+ H$ W' D) a' _' Fset k (k + 1)
+ g9 D. C3 C' K9 a]
1 A" L, |1 B5 Q# y( C% _3 z; k, I) Gset j (j + 1)
! J' F4 O' G3 f3 @. x6 m]3 Z3 N @$ Z+ B, d( i; H
set note (note *(exp (- (1 / k)))/ k)
, u1 I m2 U- n, V) eset credibility-list (replace-item i credibility-list note)- D1 T; M9 o) z6 m0 A9 O
set i (i + 1)3 c/ f) n* C/ C7 [: X0 ~4 V
]7 d( p" D. |+ A7 ?
end7 ]+ S% O) G5 c+ Q
% v+ I0 P* E$ s; R. Sto update-global-reputation-list5 |* x$ ?7 S- `2 w I; y& m
let j 0" r) D/ {; b! A
while[j < people]8 @* g, J" j! E& g( Q, A
[) C; e \; v9 g, w9 W) k# I0 T
let new 0
' h% k+ ?4 @& [;;暂存新的一个全局声誉8 {; U! T+ _7 g6 g! Y; M& U
let i 0
8 }/ |, g6 m, G( r5 Vlet sum-money 0
3 x! b; t$ N1 s; nlet credibility-money 0
) `% M! e$ m( ~! pwhile [i < people]% q& w0 ]$ P! h6 a9 b; x: Y
[
7 E* @/ v) r. q _* F% bset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* i4 t- X, K% Q- J6 g0 lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
V/ ]: q" R5 j6 d# lset i (i + 1)! d0 ^$ T" O" ?; b
]
8 Y/ Z& r8 [8 |0 p# d0 W8 L, x" nlet k 00 E- p A9 Z: a% v' u' N L
let new1 0
3 Y. g e; D- k \% X) s( g; m2 \# rwhile [k < people]
2 v6 O* r% l* d[
- H. _0 \% e, n# h% I6 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)
* @+ ]4 Z: }" V9 hset k (k + 1)
, q5 S; S, Z5 O' _! x]
% a: D, y1 O/ h, iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 U8 M4 L" H& a& f
set global-reputation-list (replace-item j global-reputation-list new)
# Y+ w& F( t; K7 aset j (j + 1)- f6 {' Q; X# A0 e3 p2 M; f2 b
]
. E+ @( U( b0 ]' _: Send
/ G: n/ J; P1 M' B4 I* Q" F- ~+ w/ s5 F3 a
1 W& F. y4 O* P2 M; E4 l9 S6 n8 d4 `& ~4 s8 A( ]( i( r
to get-color
! G3 x- E+ T0 P3 H
" U. r, Y7 H% _3 k( }# wset color blue9 R+ ^6 |* Z! b& X: n
end
; G9 q% L5 W7 W3 q3 a' ~; Z+ i
1 A9 w4 N5 F4 _2 Xto poll-class9 e& n, @' a5 i' }
end
. r5 k& m0 S+ }) c# I/ z0 J
3 z6 c9 w9 g3 ~+ J4 C$ }! U: f3 rto setup-plot1
5 K: i. c. T5 _' A4 H; N" }( _+ q% _( \
set-current-plot "Trends-of-Local-reputation"# n/ j2 E" i5 K- S$ b4 g0 Y
7 p" C% _% q! Rset-plot-x-range 0 xmax4 P: K% |8 Q5 N/ t: J( O; [
" e f) B) E' p$ w& m
set-plot-y-range 0.0 ymax
+ @. F1 t$ L3 e8 ~1 ], [& P" Pend0 ?8 x6 z& O3 U3 a0 p
' D2 ~/ ^) R& l7 E) P0 U
to setup-plot29 g: \& j7 P9 E7 }; j, [" V
, s/ {) O' U5 e) v6 Rset-current-plot "Trends-of-global-reputation"3 I1 q' q2 N* L
( n# k. p, @5 ?
set-plot-x-range 0 xmax
8 H$ S6 o! |( X: i, F9 W/ r# D1 c9 _
set-plot-y-range 0.0 ymax# g1 p0 W+ V1 t0 H w
end
0 U3 m; L' ^' l% F# I0 u5 b& B- C8 v, ~; q. w6 t+ x
to setup-plot3$ E; y" @3 k) N8 i) i% V
) i: x/ Y/ ?# g% n$ p! d
set-current-plot "Trends-of-credibility"/ }& Z8 ~/ P* Y0 M- Y& {/ J1 s, }5 K0 N
( R. {& M* w7 }" n4 ?5 ^+ G5 \% |set-plot-x-range 0 xmax0 h: ^6 @" }) p j6 n' S2 F
1 ~! u- d9 @) p5 l1 |set-plot-y-range 0.0 ymax/ y' k ^6 w9 U$ F$ Y
end
4 R+ R3 B' X3 D# Q- g( _8 R
$ @; y- Q( }7 h) n p5 D. |to do-plots* t- n, }* e. }& d: ~3 \, U( R
set-current-plot "Trends-of-Local-reputation"; d2 a% Y! H, f( q' o+ S0 h
set-current-plot-pen "Honest service"/ U* L; p5 B$ h% E
end. f+ z5 F% l/ ^' x( }9 |; A- W
6 L2 S6 k, X1 b- T v) r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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