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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
) G. z3 ^2 b* [/ W4 U3 X5 |globals[: b" s9 S& m' X9 [
xmax
& P; i' T6 i: Y- |4 p( u* N2 o" s% Eymax; e: F+ r g B& z3 O; Z! u$ F
global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中3 _( n- A( Z/ s, p
credibility-list- o/ M8 u M) i |
;;每一个turtle的评价可信度: n; _( J1 Q7 [+ F
honest-service" D0 u: T3 k! P( E+ G. l' R8 m T7 @
unhonest-service
: @8 P5 C: E' Z. W$ }oscillation' ~6 w( f- f5 ^3 h: M( ]" f" r! ~- w
rand-dynamic
: Y+ Q2 W$ l4 L8 P' [3 d7 s' Z]2 ]9 U) x% e7 \7 j# \/ ?1 I; v9 [6 D
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turtles-own[) u& ]' K3 n% T" f( Y% D. Y) F
trade-record-all
+ j/ Q4 z) ^+ p% K;;a list of lists,由trade-record-one组成
/ D% D0 L9 Z. o7 o8 @trade-record-one6 C o1 Y- w( w! Z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 S$ n& p2 _) L% y
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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]]4 f5 A2 H. E+ o1 m8 {3 F' z
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]+ H) z$ D8 q( k1 M- M
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
0 Q# R( v# @" N9 | T6 Yneighbor-total- V" I O6 N: a
;;记录该turtle的邻居节点的数目
; v l7 p8 d8 A8 j) ]trade-time
- ?/ h9 d! h7 s, _0 D( Y' `, a7 e;;当前发生交易的turtle的交易时间
+ {/ N; x. F' x4 y+ K. Qappraise-give
4 Q s, ~- a4 b;;当前发生交易时给出的评价
9 j5 z* t# m8 o& A: h( |7 O' ]6 Vappraise-receive& Q+ x% c& Y- E
;;当前发生交易时收到的评价
2 _5 z4 d) s& c0 |appraise-time1 J f+ ~1 y9 _7 G5 J+ `: E. S" \5 t
;;当前发生交易时的评价时间( A7 B0 K+ S# I( ]3 L
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! D( y( K/ x: O9 D* x' {/ {) R. e4 {
trade-times-total
0 z3 p& B+ h! P;;与当前turtle的交易总次数
A8 f) W& W1 }trade-money-total
5 C3 P( K) f* k;;与当前turtle的交易总金额. G( ^ i9 Q2 q7 @0 ^' p
local-reputation; [# J0 c9 D' @; L5 b/ l, O. D3 G4 k
global-reputation
2 i& L/ Y. e4 Y: {( Z% s% hcredibility
N1 E- f& @6 I; s2 ~;;评价可信度,每次交易后都需要更新
6 q: L0 x' k- y0 j3 H8 ~8 P& V* ucredibility-all
( [4 r/ z' s( G' v;;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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;;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& X ^: w# B7 }8 I: ~
credibility-one
+ B q5 @3 T- D! q- U( r" ?* y$ e. |;;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) A! Q% T S# w, w0 L8 ~% E
global-proportion
; Y/ T9 c$ V) f: Y# Ncustomer
! X) q! F3 E. W3 A( K, e; Pcustomer-no
. N2 G( Q! e- e! s! z) } u ytrust-ok0 D2 C( Y$ O1 r& u+ W e2 l+ H
trade-record-one-len;;trade-record-one的长度
4 X/ z: T+ B+ e% r7 W( i* U]
4 `0 U" f. ~# e' F; d2 S, {# h+ I# F& a! b# H
;;setup procedure# U8 i4 L. P4 V
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to setup" e0 _1 _! h1 Z3 f! \
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' _# i. p, I, I1 winitialize-settings7 z% {1 g @ E6 q" B( L
5 J6 c# u1 W' }* Ecrt people [setup-turtles]
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reset-timer. z! r8 } K! _( `6 Z0 [
a$ Y w: I& g$ T) e! apoll-class2 _: D* s6 ~$ l
% M- |7 p" d& V% |1 Csetup-plots
% a; i: J* D* O1 T' x- E v* h$ R: U1 d$ U& N. t
do-plots
0 t; X' m! g; W4 Cend
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3 v$ I6 G; q9 A2 Z1 eto initialize-settings7 c& ?0 \& b9 a8 z6 \- m( v+ C
/ g3 b+ x0 ^: Fset global-reputation-list []6 X5 M6 r2 V, `. I7 k
( U8 T3 Z8 q; R5 M) F; y
set credibility-list n-values people [0.5]' F/ H* Q6 W; E% y+ b9 [2 a* L
; R2 t- _5 [4 J# h A* u( \! Oset honest-service 0
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set unhonest-service 0
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set oscillation 0
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set rand-dynamic 0
' ]* I M4 T+ \end
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2 s) z" n3 H+ j Dto setup-turtles
" V- a9 }) X8 L V9 q A) xset shape "person"
% F$ \( a2 y' {setxy random-xcor random-ycor8 Q9 D5 Q) I% b3 ~: X2 v
set trade-record-one []$ P! |# i4 d2 E @3 I0 y; h
s( [& Y; \+ |2 N% Wset trade-record-all n-values people [(list (? + 1) 0 0)]
K/ B$ f( N: p, l/ Z1 M7 X) e6 T3 ^
! f8 n3 A N O) V7 S: qset trade-record-current [] j% I T! X3 ^: k/ e
set credibility-receive []
: r7 f( z: t2 ?" ` R! Uset local-reputation 0.5+ L! G) _8 b% e, ~2 U
set neighbor-total 0
0 ~) i2 H' c5 ] ?, _set trade-times-total 0
9 ^5 U* k, K- I( ]set trade-money-total 0
" Z- ?0 |7 _6 s! M$ wset customer nobody
, }& V4 e6 s0 c6 |7 Dset credibility-all n-values people [creat-credibility]4 G( Q/ ?( n9 C
set credibility n-values people [-1]2 _+ f. m9 ~9 z# o- E F
get-color
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end+ X; G+ ?5 z# ?% e& b
5 q n6 ^+ M Yto-report creat-credibility- u$ |* a+ N: f' U" g. b
report n-values people [0.5]
6 f) }/ N. v5 w2 V% Xend* @4 G3 \8 G2 H8 J9 V
+ b! x7 D5 }6 O+ z/ Pto setup-plots
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5 ^- d3 C n, |# Tset xmax 30
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( U3 y- s" ]1 ]" r9 O3 tset ymax 1.0
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clear-all-plots! w4 l' Y6 ?* I! r
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setup-plot1
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setup-plot24 o! Q5 n; E$ y: T9 \5 W7 P
. R% \8 I* `$ Z+ W% I. W0 Rsetup-plot3
4 }% N+ T2 g8 E2 |end
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;;run time procedures
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to go
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5 g4 `9 D3 A7 W; L) M3 Nask turtles [do-business]
/ M3 W7 n+ }4 ?7 H! E5 S2 Qend
; T( D6 O2 u; o0 d) `( I! q
W( @0 [5 j+ p. mto do-business $ _" z7 V, R0 e& r$ u
) a8 D4 Y: g# p9 K# J2 S, F
& q! K( H" W4 a1 drt random 360. X" t( D5 Q' [. n: |/ ]
6 X* P' C' m* N3 wfd 1
5 l- N5 i7 D! a! A# ?% I ^" B9 O- S: L7 m4 ^
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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2 f( j1 o0 _' t;; set [customer] of customer myself5 R3 n* K0 F" L5 c
' f- C @. m" ~) H& \# [set [trade-record-one] of self item (([who] of customer) - 1), Q: _$ [" V* T# ]6 i9 f
[trade-record-all]of self- ?, s9 t6 I. d/ S
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. r4 d$ `) N1 T' D
+ ]+ ]5 J+ F$ X+ ?- j
set [trade-record-one] of customer item (([who] of self) - 1)
0 a& H3 G1 T8 m' w3 F' A' Q[trade-record-all]of customer- P3 c1 c. `$ i; X* w; V/ R
% o% ^0 X& T9 B
set [trade-record-one-len] of self length [trade-record-one] of self
% `" ]! k4 E- f J
/ {) o5 ?. A2 ]set trade-record-current( list (timer) (random money-upper-limit))
5 ~7 e* C) P( J
, k5 T+ g; H% j: Xask self [do-trust]
: L* X5 n# @2 \! o;;先求i对j的信任度/ d! o- C9 m: K6 G6 ]
7 G/ t! f2 H: G& e) I- e4 n
if ([trust-ok] of self)
5 ?% h V' S$ X7 D& |;;根据i对j的信任度来决定是否与j进行交易[; d& l5 H( c) \' u) i
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! i; }! C f0 o3 ~! t. B
5 U# X0 n8 ^7 c3 A3 p4 {: R2 ^
[- a+ ^, B( P' y. F. ?
+ N+ o1 m2 G l1 ^. \do-trade
- @8 x5 W: O* W ^& i6 y2 u% H; x1 ? x& S: k( p) q4 V
update-credibility-ijl" w1 i I( E2 L( K8 X, n/ {# |* s
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update-credibility-list
: z/ e- ~0 A& d* R6 @- e4 W# H3 y( N, \8 @
1 k* U; Z0 Q# R s. w
update-global-reputation-list
# t% ?/ Z8 b) N8 f- j- g* f; F$ `( L% @2 a8 f3 C- f
poll-class- a# a& Q- {0 ~4 f9 i) L
& W* k8 H- c8 c; ^; h
get-color$ E4 p {) O5 H
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]]# w, |; `9 V7 o. B# ]7 F l! S
/ ^2 v2 |3 ~+ c% f* y7 b5 l7 V+ |;;如果所得的信任度满足条件,则进行交易$ z) Q5 h1 D$ X6 _! X& K$ d7 t" P
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[
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* {1 X# N% F1 |3 o0 O1 d% [0 z" d8 krt random 360
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3 ?/ Z; `/ @- \& R" E- [4 Kfd 1
+ M6 C( Y) U- I% _$ o1 f
: `8 o# ?0 b8 n% a; ]]0 {4 v- D( F( C5 ]
$ [! `( |( l! a. P, D) ?* g- o
end; X# ~# [; x( l I5 G: A, W1 U. a) N; \
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to do-trust 9 u) x5 {8 M7 H$ ?5 Y4 U5 N6 _
set trust-ok False
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8 Q; `) M& \* m5 z3 d8 _let max-trade-times 0
2 P1 W* _% T- w. X( }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 S3 [( h6 e/ Y7 F% I: clet max-trade-money 0( e; V9 ~! Y1 W
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# f8 J& i9 r7 r/ V2 ?" z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! l0 S; y9 G. ^0 D
9 |# O8 g# c0 F% u% z0 Z+ M, j* s' M2 b; N; ~
get-global-proportion
- a. B. }$ P$ u3 M w: m) Ulet trust-value
6 N" T1 \! y4 v1 Z8 c3 ?& Jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! T2 L2 N2 P& J; ?
if(trust-value > trade-trust-value)$ j2 v& n& U2 r- U1 [
[set trust-ok true]
* _5 _1 e. T! d$ ~# d, D% Xend6 w$ p+ i( f/ F. o X/ W- ]
$ g7 \+ x9 W0 ^
to get-global-proportion5 J" l" x7 n4 @. g' ~/ l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) u% N" t3 Q- `# v! P. v# X[set global-proportion 0]
( H2 x( Y3 @7 Z0 y[let i 0
: a4 a8 w# D: S7 X1 m; Wlet sum-money 0% N7 s7 E" w k0 r+ p6 t# f2 G
while[ i < people]
% q5 Z5 c) z' d/ [[
2 z' Y2 {7 y, X ^: }, @if( length (item i
1 `3 y% `9 o+ J: U, w1 j( D* ?[trade-record-all] of customer) > 3 )7 g8 W) D5 d4 N. B) N
[
Y) N% @) j8 s% r5 @/ fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# b& y. n( \2 T0 K( @' p]
6 S- ~# W1 @( j$ V, d) \. k]$ d& v2 U' l8 f$ [4 y
let j 08 p& [9 t* l2 J1 K
let note 0+ ]4 s9 y/ G: z$ J
while[ j < people]5 p: b9 n. p+ Z3 A2 U; X, ]" }& ]
[* i/ N" O: h0 ?% r9 A: x% D' \2 I
if( length (item i1 [1 o' v+ N( G
[trade-record-all] of customer) > 3 ): X9 R0 j. W. f/ v) R, u
[8 q6 |$ A# ~& z$ F
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 Q8 j$ r, T0 b/ e; [0 A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 {. N- C) F; S. z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ E8 {' Q0 r9 O" I5 g
]# W; H& |: z9 G9 Z
]/ B; E* R9 w. ]1 [& E% [
set global-proportion note! `" I F" a+ M
]
4 c* D b4 Y1 D! f7 x4 K" jend
# n" D. }$ _: @( v
T+ A: ~ ?% I$ q1 ^; n, bto do-trade
5 } C* ~. M2 H* z y/ \;;这个过程实际上是给双方作出评价的过程
0 H! N7 G- c5 q$ r9 }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; z* s9 d1 T" V9 B$ T, d; g% z i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) w' y; [) Z- B4 ~3 [- Z4 |" F( B
set trade-record-current lput(timer) trade-record-current
+ [6 c; U0 Y4 d$ C6 i;;评价时间
0 i0 I2 z. K, W7 S# ?ask myself [6 I6 w$ }6 X8 e7 c; s. u* |0 B6 U
update-local-reputation. Z h3 v- F, V6 y/ g
set trade-record-current lput([local-reputation] of myself) trade-record-current7 F* ~" t& g% j) q4 J
]
9 j" i* b" ?% R( m3 L. Y3 y9 mset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself4 a. k+ f9 d6 |( L5 h. F
;;将此次交易的记录加入到trade-record-one中( }8 l5 {2 F$ m9 x3 H: l K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 }8 ]- w! D3 d" M2 p3 G8 D* _6 X
let note (item 2 trade-record-current ). b2 z+ n0 Q4 @6 g3 }2 n( c/ P& r
set trade-record-current
2 H# S! o8 w4 u(replace-item 2 trade-record-current (item 3 trade-record-current))
" w& S7 y' a( {2 |. @set trade-record-current
0 j* t5 C- ^8 C(replace-item 3 trade-record-current note)8 N4 u" o" N0 t1 [9 C
- g3 V% a, U% b8 F# D
- `9 m- j( @4 [. hask customer [0 v3 `: k5 C' o; Y/ X
update-local-reputation, O* \) x9 G1 E4 G6 @9 t) {
set trade-record-current
4 X, R9 g7 @( Y9 ], b9 |& C(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, N% S/ ^+ @# @' J0 K# `]& g% l7 R( r6 g4 a3 T- V! D* Q+ Y# A
4 j4 J; u$ f! c9 C5 O- z7 S$ u" O, {& v# C6 N
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 V# O8 A) O. m7 c' e5 |
# _5 t% D( F- A! P& g" J9 f8 a2 wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ x5 R5 M( @8 j/ \: d;;将此次交易的记录加入到customer的trade-record-all中5 \0 O5 `9 S3 a2 J& n
end
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to update-local-reputation4 p0 ~2 e. j3 b6 \& m
set [trade-record-one-len] of myself length [trade-record-one] of myself
, `) }. G& q4 o
' A( f9 b' t0 _6 P4 N" H* a5 k% x' e0 K8 B) G
;;if [trade-record-one-len] of myself > 3 9 J3 ~5 }# v9 I
update-neighbor-total0 X, L( b' O( r. y) x }
;;更新邻居节点的数目,在此进行
: f( ]: Z% y$ X) H/ d) K+ slet i 3
0 E2 _6 h: |" ]( `let sum-time 04 v6 e* {+ z+ L$ K5 @! h: C( `4 J
while[i < [trade-record-one-len] of myself]7 t9 G5 U# N# i% F3 e) O
[
5 i% G2 o" @. ^5 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( f+ N* z" ~0 f- N7 jset i
6 C4 ]! M/ m7 E$ o. C4 T( i + 1)
* A$ E$ Y: y8 \' O/ C]& ^! R1 H* _$ s
let j 3$ w2 _; k8 r x9 \: s" s
let sum-money 0
5 q$ P4 g- ]: P( K* N) Y. Z/ Dwhile[j < [trade-record-one-len] of myself]
1 i: E* f/ z4 i8 T3 d/ v2 s" U[' k) ?& v8 `/ F% E/ Q$ q: [4 h! e
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)
: W7 L2 O Y; N# T: n, F1 Zset j3 {3 {- x5 C6 r+ Q" T+ m4 w3 S
( j + 1)
5 G3 Y! u5 b( O1 u1 a% h6 q]
% a" ?. I" B @. n7 I5 X# p) _+ Elet k 3" L4 X& |$ f' \% a) J3 d' c
let power 0/ h6 y+ ~* X/ y/ q3 {: _
let local 0 X) a3 ^* z) s0 W0 U( `0 X
while [k <[trade-record-one-len] of myself]7 k& {7 D1 h% u- t; W8 e
[2 W0 |: L& ^' {4 x( {
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) 5 \* g- Z' w3 w# ]/ \1 L
set k (k + 1); h, `3 l' M8 n. O: k
]1 P6 e- _4 R- u9 @
set [local-reputation] of myself (local): L5 ]% y1 y0 V0 Y: V
end
9 M& B G {% H, h5 i2 R6 N) _- `0 }; D
to update-neighbor-total2 O1 L6 d- N) E* n& X( c( V
5 D3 p% U+ w0 d4 |0 `4 `# ?# @" Qif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 V c7 }; I! c* \6 ~$ V4 V6 R) r9 M# [) S
g o/ Y8 a* U9 w1 C( uend* N$ o) r8 j" x6 d9 p8 B
# a0 G# ^" S4 g4 @: h
to update-credibility-ijl ! B6 X9 i+ j6 r
% f5 a$ s* d$ [" `/ w! i;;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。: g' c5 j2 B |( K2 I( i( Q
let l 0" J' N. d2 j4 Q/ T" \+ c6 o
while[ l < people ]
9 y }9 k( D8 O, n% S2 f. c7 V/ 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
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3 s3 b8 ~6 w( N2 Y1 w; P/ s% i6 mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer). l& j* k5 y& \
if (trade-record-one-j-l-len > 3)
' o- Q% G$ q$ M# 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-one
- s* z) q. j, j4 s" Alet i 3
4 P: {6 ] {3 @! q ]/ D0 ~7 b: vlet sum-time 0
. w1 Y E; F1 `while[i < trade-record-one-len]
. j4 R; @* I+ _& J* k5 k, \[( K! n& k- ^/ u2 O2 v
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, M% e. {0 W3 Y8 K3 pset i) y% J; w5 {, U0 ?3 `
( i + 1)
4 |6 `; O! \/ @: N/ |]
+ _1 o& e6 [& d I5 {/ alet credibility-i-j-l 0( A+ }9 E# q8 J# r5 D, a
;;i评价(j对jl的评价)
% U. D7 j" R/ s- V9 ^let j 3% ^7 E. m ~& s! b. |* v
let k 4' S5 m/ G# a5 M N' b. x
while[j < trade-record-one-len]
$ O8 F2 f0 D% \$ W! c3 A, \5 m: V[
/ h k1 Q. j, s! n$ o! ^3 }9 zwhile [((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# R# I, m1 E) x
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)
% y& ]' {3 ~$ pset j
" F5 `, J) n, }" y9 y1 u( j + 1)3 \, m- w" H! B# S; G1 d$ H: z
]; _8 A1 F0 C+ N0 [9 _* _3 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 ))0 T" m. x" z6 @2 q% n1 i
1 H& S* U% W2 R9 r7 l' i
9 G8 R3 @7 Y' E. D* R! rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! P8 g& V4 h0 U: J;;及时更新i对l的评价质量的评价
0 F0 x3 ^" R. A: x. @. T6 `/ wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] y1 |! |& \7 ~0 |% a* C' h; h2 d% h; s
set l (l + 1)! n+ P- ^, }. E) ~) I
]
$ E. d+ d" a3 J( @end: ^$ e8 P& R" I% I$ E# O
! A& a; h: D5 U( s- hto update-credibility-list
0 l! j' _: M; W/ Q' a0 Clet i 0
) w6 Z/ H! @2 O$ C# T( e5 Swhile[i < people]7 y0 p% T6 \9 e
[
3 P" T" W5 h, i5 b1 |9 I2 Clet j 01 Y) x, h* i4 Q9 U Y9 x
let note 0; I* s: z. }/ S& Z( ^
let k 0
) X5 q7 x; i4 X;;计作出过评价的邻居节点的数目+ F \# J& [7 R7 K# m d. O; T7 W
while[j < people]
1 F% z% H2 p" k2 Z[
6 K3 v1 `" H5 ?. Oif (item j( [credibility] of turtle (i + 1)) != -1)# C8 x7 d8 S A! F5 R% |, `
;;判断是否给本turtle的评价质量做出过评价的节点2 L! S) z. d+ E$ j* B! J
[set note (note + item j ([credibility]of turtle (i + 1)))# s: u3 _: k9 ^+ A( n7 [
;;*(exp (-(people - 2)))/(people - 2))]2 a' `, c' R- t5 r! @/ G% E
set k (k + 1)
/ T4 F! X% a' _0 {]
4 e: I) D! e0 X8 u) z2 eset j (j + 1)$ w9 [0 T; X4 _' X" v
]# V$ [9 A. q) s S- O
set note (note *(exp (- (1 / k)))/ k)# G5 ~. z" U, v9 N) s b- ^ L8 v7 y: {
set credibility-list (replace-item i credibility-list note)
F( ?( N& X: {/ Y- @" A# Jset i (i + 1)
9 m* u6 j& ^0 l* O]9 H" n) y7 ~! s: G$ l
end
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to update-global-reputation-list
9 @ w R" j# J3 R0 P. q; wlet j 05 p) V% {; _& J, t
while[j < people]4 P; K. u8 m s; S8 c- ?
[
2 k+ H; g6 `' A% n* q& clet new 02 Z1 x) f; H2 H) P0 B& w# E) G% c
;;暂存新的一个全局声誉" c6 |$ F: f1 I" s2 y
let i 0
0 d4 c/ L; C# d( i( e9 c) Qlet sum-money 0
& E! `( g/ S* C' `5 {% vlet credibility-money 07 D& U4 o/ Q" n
while [i < people], ?- D6 W3 e: c
[
# l) z5 r& a5 j2 ]+ V. Hset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): @9 _$ W% u) K6 C. g' l5 J
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))3 S! K2 e+ i- p
set i (i + 1)
( ^3 K$ s& v Z+ _( e]/ Q3 P6 C7 a' W, k
let k 0& e6 S3 k- D$ X; R
let new1 0: k( o) k( V4 V0 Q m: ]
while [k < people]
3 E6 r& Q1 R W6 r# k7 Q4 q8 m[
6 T' `4 Z- m- l; [8 Jset 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 `1 @% \! y5 I* @, e# Qset k (k + 1)
6 u5 c3 i/ h4 j+ {" U]% Z# N. R! ~$ p* l: b* s. H6 q, e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * A( q N' ]! S# ]$ v
set global-reputation-list (replace-item j global-reputation-list new)
( J" r4 y2 w& {" C2 h! J5 Aset j (j + 1)5 \ E$ o3 k; x5 _
]
4 e# B J* A' Q/ i# Mend
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% P; I% @ Z6 W3 P$ ~$ K3 M$ _4 u1 o% G
to get-color
( t H& h/ G: _9 j
E b* K$ c' zset color blue/ k# _% n' O3 S0 L: V
end
6 h& w9 ]) Y) z3 W s* s
0 x5 _# f, J4 e# X3 ]! rto poll-class
- I0 g; E0 i Q9 G5 w4 bend
0 I& l; _9 A; o$ m3 N" s: Q# V$ ~- v
6 v: ^6 ]6 w. i& @4 W" j$ i' pto setup-plot1
5 p# u3 Y `! x2 d
/ r6 n. E& v8 z: _2 Uset-current-plot "Trends-of-Local-reputation"
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2 g: O- S: m/ }+ U8 l! cset-plot-x-range 0 xmax8 D5 [; b( l ~4 A. a4 T; _' T+ N4 G
$ s* n/ @ G: N! I, I3 h4 s1 j4 r' h: xset-plot-y-range 0.0 ymax9 C7 M0 S; ?& F# O
end1 S* e- K4 F1 a( A+ }9 z
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to setup-plot2
! P8 U( Q8 {( C5 W8 E5 }) z, c6 o/ @/ g. A: U0 V
set-current-plot "Trends-of-global-reputation"9 W s( V6 H4 G) T1 N
# a: K2 K( N8 i2 ^' sset-plot-x-range 0 xmax
2 f- ?: H$ K0 z8 N- f5 Q' Z. m# C- }3 M S
set-plot-y-range 0.0 ymax, S5 d2 Z: S; G/ Y3 w& F
end
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to setup-plot3
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set-current-plot "Trends-of-credibility"
! U+ ]" c' r' m% A5 F- T
0 s6 N8 L; W9 y u6 y8 s/ x5 ?set-plot-x-range 0 xmax
7 q: E3 `) i& g* S, C; ?
: t1 X' [$ j+ q5 G& eset-plot-y-range 0.0 ymax0 G7 Q: P- i5 e. M# T
end
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to do-plots8 I/ b/ L/ V, A1 u; ^4 S
set-current-plot "Trends-of-Local-reputation"* e5 v& y) ?# `: C% u
set-current-plot-pen "Honest service"
6 J- F. q; n9 A+ H" u- \end# N9 K' a) u( Y& ^" n( d% G
0 D9 j$ v, z, B, j. G. h[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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