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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) C2 m/ y7 f Zglobals[ f. ]/ q# E, N' j; C
xmax& Y6 d; E% D9 S) B* H, S4 w8 i
ymax# r! r# E) ]5 C7 g1 A# Q6 m: f
global-reputation-list/ @7 i# f. I% P
3 h2 s8 E4 J6 }# ~1 N5 `;;每一个turtle的全局声誉都存在此LIST中4 R+ W* D& e: O( @ k$ ] k M
credibility-list
3 C o$ ?* F. h" Y6 K7 u& ?5 j;;每一个turtle的评价可信度
+ x: l2 Q( g3 t6 [* l2 Dhonest-service/ b2 d0 b9 p3 f7 u5 ^8 n9 n
unhonest-service1 U5 L3 _0 p8 O) c9 x, ~9 p7 i
oscillation# C0 Q7 x; Y2 |
rand-dynamic& y9 A5 z9 c+ {: c: S1 M
]
; ~: ?$ [( l: N2 k6 u+ E3 X- e7 L+ c: K J! o0 J
turtles-own[! e) F. m! o% r5 |
trade-record-all2 A& m6 J$ `$ F. s$ a7 N
;;a list of lists,由trade-record-one组成
k6 E8 A& U- J+ {9 i" wtrade-record-one, b# `: G& b; a/ x
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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$ f4 g; [/ A) O- };;[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 X/ O7 w0 F2 m4 E' h: ktrade-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], W z. o: x1 _; z( |9 B( j1 u
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$ Y$ ^ A9 L0 X, w# h G: \# \, A
neighbor-total
( q6 }9 G1 w/ E$ Y;;记录该turtle的邻居节点的数目
4 u4 R3 n6 e9 l' {trade-time: `$ ? G+ P- e
;;当前发生交易的turtle的交易时间9 B0 d' ~1 }% R/ f" O' j- O
appraise-give2 v2 R" C( T9 ~7 Y
;;当前发生交易时给出的评价
6 a% h# z M; v* mappraise-receive
. a3 J2 K: o4 I$ I9 `! | [;;当前发生交易时收到的评价$ X& h% b2 \9 k; }
appraise-time
+ q" s) O1 K& H5 ]. l: E;;当前发生交易时的评价时间+ C* C$ M( H: u- o; D0 p/ ^% L3 f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉$ O" x7 r4 _! V: Z
trade-times-total
! p( a; l8 u0 v6 M: t$ n2 n0 H;;与当前turtle的交易总次数" _* Y* u ~; X* N' O! k
trade-money-total. l4 u7 I) b3 r0 s
;;与当前turtle的交易总金额
5 U* N3 E ]* q% c1 A7 ~5 M; w4 zlocal-reputation% M4 e% G. r C4 b$ F$ g. X
global-reputation$ E) v* G% r8 Y. I
credibility4 v; R, a0 ` a! v
;;评价可信度,每次交易后都需要更新
: A# b9 L [3 V2 ?# O) vcredibility-all
" |8 p9 x3 l/ }3 x2 J. [;;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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1 u6 V2 b) f3 B( R `% N;;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- `) Y4 b- h' P$ e N
credibility-one9 E/ j' {5 T+ o/ a
;;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8 D9 ?6 H r0 J) X& O- [
global-proportion" i/ E5 t* b" _9 u/ [. c `! g
customer) n- ?: |8 b) h
customer-no
2 B, Y! U [) ?, y$ n9 {trust-ok
1 y) T4 X# q; ^% Strade-record-one-len;;trade-record-one的长度
- z2 R& }& H( H6 v: y" n3 a] H3 t* f) J% V
* B0 M, F/ H, S8 m9 \
;;setup procedure
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to setup
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ca
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. s, t( z/ ?. l( ]2 M5 ninitialize-settings& Z4 w1 J# C4 y& k
8 t2 p r; E% Y: S8 l" n. Ncrt people [setup-turtles]
9 T [: C! z2 v9 R. C1 e& B8 H
; ?, w1 N+ C0 W+ m6 S1 W: Hreset-timer
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poll-class
; s! n9 d6 |0 T* x. D" ^0 D( W& B
+ F$ T/ X, p$ _, w _6 I D5 [setup-plots( R! p" w/ }% d ^$ u! V
5 k: ^$ s) z& M% i6 @) E0 cdo-plots3 B# a0 |, v8 X
end
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to initialize-settings! c) J$ ^' C2 J& e/ a2 l! s
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set global-reputation-list [], j' e5 l+ p1 f' u% u1 E+ B* u
; z. }9 B3 l3 @+ o1 A: c+ ~
set credibility-list n-values people [0.5]
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set honest-service 0
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l8 O5 R, b. ]( ?" g. x+ r, m5 s4 Zset unhonest-service 04 i; W3 R+ K _7 }
+ S4 V: y7 w- F* [set oscillation 0. _- q8 b4 Q0 F! a: C' f1 g
$ W5 O7 n2 }2 g$ @# e% |
set rand-dynamic 0
3 _' A' b" J0 [4 h; y" E. k1 Rend
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8 M. Z+ p! {. n. K" Ito setup-turtles
. r% R5 G$ h* m% g& w7 I2 Eset shape "person"
3 N K0 ~0 S6 ]4 nsetxy random-xcor random-ycor
; K& F6 c# `1 c; L4 Q7 lset trade-record-one []
~2 E/ A K& D# q+ a j, v' K
7 f4 L1 D+ t Y' J6 E6 ^set trade-record-all n-values people [(list (? + 1) 0 0)]
m6 ]# ^( m: z8 Q7 O" T& M
! w- X3 ~9 w( N. n3 j* y. ]4 Yset trade-record-current []
2 A$ V( e# x# f: f5 uset credibility-receive []
. ?1 q0 T! O- l1 z. z; L+ ?% uset local-reputation 0.5+ d! h+ ~' V) u; t8 n9 i3 I6 {
set neighbor-total 00 Z, m' W* M1 {
set trade-times-total 04 c2 c _7 ^" M
set trade-money-total 0+ k3 [6 x+ n4 k D! c4 r
set customer nobody
$ |+ S! E5 W; c; A$ Gset credibility-all n-values people [creat-credibility]1 P5 U3 x) y- i' x4 F, g0 P/ Z
set credibility n-values people [-1]
# F) l8 {! E! A% U9 G3 A" d Jget-color
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end* h2 S( x% F4 `& u& r
2 w, l4 }. F' S( P$ V1 D' D A2 C* Xto-report creat-credibility7 V6 K# z9 N4 e& p( w0 u
report n-values people [0.5]
) G2 x9 e, K; ?end
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- Z. t8 D N1 n7 W5 Y% F. Pto setup-plots
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- Z1 }' W2 J' X: D$ Q: v3 I ^2 ?set xmax 30
$ M5 g' v) a- d! }; K P/ @) d; g* S
set ymax 1.06 U: e3 f4 W, l6 F; X/ o
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clear-all-plots
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8 D1 I. B. O# V8 K7 _2 Qsetup-plot1+ d& Y% K8 ?4 t1 n/ j. q) U5 y
# q6 H1 n" V! h8 ~setup-plot2
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setup-plot3
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# A7 \8 S1 t( q l/ c
;;run time procedures
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to go* A1 o. i' k. q# S
+ [# `+ i* W3 o3 O) f- O. v* Zask turtles [do-business] Z/ s) p: k$ F- _% [5 i% C1 y
end
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to do-business
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7 k: v8 w2 J4 Q) `3 @; \9 \$ j
rt random 3601 u( c8 r0 F5 D
0 \3 w" e2 S) U, f% [
fd 13 W1 p2 @2 Q7 A/ J# W' d- T0 I
# [7 q1 a* ] d" k" n; A$ L7 B2 U0 |
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here& l- E( v$ b: C+ s& s
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
$ v/ r4 N9 \ A! [* r[trade-record-all]of self
8 J; | P) S, K;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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" l6 }* `) U" R# y1 Z$ I3 Mset [trade-record-one] of customer item (([who] of self) - 1)
' Z8 T, ]7 ?3 k6 B7 _[trade-record-all]of customer
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. q* s& _7 h7 \2 [" S9 X) Hset [trade-record-one-len] of self length [trade-record-one] of self E0 V b7 G+ h) W, c. D, A8 t0 i
7 V$ n6 o( `. a3 E, a6 w2 N* \$ y
set trade-record-current( list (timer) (random money-upper-limit))5 |! ~7 e3 e# h* O+ Q
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ask self [do-trust]7 T% h) E. [8 P. q& u
;;先求i对j的信任度
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4 g4 R! b3 v- b4 G5 }3 Yif ([trust-ok] of self)9 Q( O' y% J. G- W: O3 ?4 }
;;根据i对j的信任度来决定是否与j进行交易[) t9 o/ _2 K! n( D" e
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ E }8 x2 N3 Q6 |3 n( d/ e3 V2 n
! m* p, U* c) N[7 g, a- Z" Q# _/ ?" T! c: |
- S# H. o2 {# {7 t3 j/ wdo-trade" X2 ]! k% g6 `* M. f5 x9 M
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update-credibility-ijl3 D- \7 v8 \* O+ ?5 b
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update-credibility-list
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update-global-reputation-list5 ^# q" f6 _, E: ~& A
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poll-class" K# M- s9 f2 _8 A) z$ k
( u# m, O0 P" {+ s
get-color
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5 F/ r1 i! F( [ B: B]]
: p3 V% T$ O7 g, e' l; N; x. }( k8 M
% ^; }5 r6 j9 Q;;如果所得的信任度满足条件,则进行交易+ x" M2 h! M0 ^7 K0 c' n0 J$ k
/ z2 K1 @% _; Z- I6 T6 y
[/ V3 z T5 I* C" k( r+ m; u
2 E6 u; P5 r7 _0 r0 n
rt random 360
& F# x0 {" d: e6 p3 i7 c1 l+ o2 _0 T J
fd 18 s+ x! B/ ?9 l/ ~$ a8 a1 g
9 N& R$ ~0 y! K9 T, q" s]
: n1 P0 Y: a8 x, {) g
$ C r( r1 m: w- w' p/ \end
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+ c7 ~; x G7 j, D" X/ R% Oto do-trust , _8 e' F9 u' {( R
set trust-ok False
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# {( J. z- j$ B9 Nlet max-trade-times 0
: c3 I5 \+ p3 \) J0 ^/ b3 Cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
' H0 j( Q+ {1 J' a! Klet max-trade-money 0
) @$ _8 |* B( q* |foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] Z- N* z ~ O$ 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))
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2 f7 b3 {! G9 }0 n- O6 i( H
get-global-proportion. l% u2 o2 @4 _: \
let trust-value
' r# H6 Z1 b# u! u1 } B) x/ A( i6 Tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
@' V7 f& Q- C2 \if(trust-value > trade-trust-value)' K& f6 ?7 Q, g
[set trust-ok true]4 Z+ M/ N3 A, {% S3 f/ }9 y* C+ ~
end& o. ?: n" F8 R' o) {. I* K8 C
, Y( M( a2 Q7 X# D9 N! ~to get-global-proportion
0 r- I! _! \. J3 [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 y. |$ J3 o* Z% ]0 }3 c7 L* Y9 `# D
[set global-proportion 0]
1 x9 R: U3 ]. f+ z- T[let i 0" z" z0 w2 b# @# b3 f' A! @
let sum-money 0: }4 B0 d3 f# E) R4 h7 d$ z. w
while[ i < people]
4 C! z: U6 X' j. c l" I- d[1 K) v7 {! C) i# e1 V! d/ S8 h( V. z
if( length (item i
9 S3 Z' M) v o3 V; ^) q; g[trade-record-all] of customer) > 3 )
+ K5 {. H P# H; L; j3 W[
5 z9 Y7 f" D9 _! x- @9 V' kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; H9 E1 v! G# Z" B0 s( Y8 g]4 f' q0 M$ ^) V! o! a! N6 Q
]
) L9 ~7 A9 d) \1 wlet j 0, W# E. R [2 n' P7 A
let note 0' v5 h0 O8 P. u
while[ j < people]
; `3 u8 r& H. |+ E[& v4 Q. `- W T* J# Z0 { R% o% N
if( length (item i7 P7 k Y/ Y4 \, j
[trade-record-all] of customer) > 3 )# T" f; s7 n/ k3 F( f7 @# Z0 Q) k2 ~
[
# h5 ~0 Y& r# `: l# V0 ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 z' Q2 ^+ w: Q% |* L* B1 }
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! {& h7 M3 [, \6 {+ ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 e4 K1 X8 l. |0 M
]
, O2 @0 s3 z& \7 k0 u% \]
$ ]+ C3 i9 o" L! cset global-proportion note. a/ N7 M7 u0 J3 }7 V
]( B/ y3 P% \ ]" ?
end
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to do-trade; n& f) i w8 H6 V
;;这个过程实际上是给双方作出评价的过程# F: W- C. C" j0 q7 z" k2 A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 A" a0 E8 n& K$ |* C( O3 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( m; M s6 a1 \. o$ p6 Rset trade-record-current lput(timer) trade-record-current
; ]! I* A, d9 c# g& V; M;;评价时间
! i- _% s0 X+ j: C8 x, pask myself [' }' T* w: G" L b
update-local-reputation
4 G; y/ t( J9 [$ o' J# e6 bset trade-record-current lput([local-reputation] of myself) trade-record-current" p6 T0 T5 x7 K, {+ c9 ?
]
; r$ i6 p. g" V8 k4 Q8 ^set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ u* X% r% S$ G; g2 u; ];;将此次交易的记录加入到trade-record-one中8 o' D0 V$ l( T2 f1 d
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 I" F) W" s' z' D- ?( u9 O8 Nlet note (item 2 trade-record-current )
: }: a v2 \% @2 g/ Qset trade-record-current8 f" {3 K" E# T6 N2 o$ R$ A
(replace-item 2 trade-record-current (item 3 trade-record-current))
7 f0 l3 @ K, L. \4 H" l7 m; I Gset trade-record-current
S. P% J( x/ G! Y- `+ P1 }4 n( ](replace-item 3 trade-record-current note)
2 p4 r. p- b. D- m w% w; W! q0 w3 T& a( T
0 H0 I: v$ L( d9 e1 a0 a
ask customer [& m9 u- c9 D7 {; k7 X% ^( [
update-local-reputation
2 ` }1 q! [3 s9 U7 p/ H+ Mset trade-record-current
4 X# T8 s% Q$ l9 i+ P0 g+ Y( W. r(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + h7 ^1 J- Z p* ?% E
]
+ M( ]4 }; R1 `/ F/ } H9 O* Q! @: Y1 Q
# g2 K& g# T8 J0 w9 hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ u I5 g. S' W% F: x5 S. s0 V0 A: D$ i
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! d( L ?1 `$ K7 S! n8 n* ?. n;;将此次交易的记录加入到customer的trade-record-all中4 n! C" N2 X( [5 Y! e
end" r5 H( m" Y8 f; ]& q3 _, H
+ D, ?* y( \+ f3 f+ [3 K$ Oto update-local-reputation
& N) E1 d; m, z5 Wset [trade-record-one-len] of myself length [trade-record-one] of myself8 b C% C! |6 p9 y% U
: W. k, z& `) g" c6 ~2 J2 T4 V4 m% Y
2 l" a- |1 M: b/ p$ X# o3 C
;;if [trade-record-one-len] of myself > 3 5 m3 J m" v1 k) s
update-neighbor-total5 A; o; D6 e9 _7 G
;;更新邻居节点的数目,在此进行
% Z" @+ @( U9 I/ k! }" f& f* F) glet i 3& |( S3 b6 a0 E, d( n' g
let sum-time 0
& K# i) z! v7 D" Swhile[i < [trade-record-one-len] of myself]
2 A% W, F. v# ~! v[0 Y9 ]/ q3 W1 e" z/ ]& b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 D' q V6 D( n2 B- W' M
set i
! \4 s0 q' p, \( i + 1)
; y5 @) |+ R; _]
7 g5 A) @+ v H B! f+ ~let j 3
3 ~! M! i/ y4 P- A) c- \" m8 N3 Ulet sum-money 0) r! A& b, B3 Q6 O# M
while[j < [trade-record-one-len] of myself] R3 R$ ]$ `( T1 t) ]1 z' r6 M; |
[
0 @5 `$ l4 `7 K2 L2 V1 ?: Jset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
! X; D- J8 M( ~, Q8 c2 A' Qset j
$ q R1 {2 y5 t4 s9 N( j + 1)
: C3 V" L+ {% o []
# D$ C) i) Y7 p+ H8 [* a8 ~let k 3
$ j6 X) o; f! H9 u6 Flet power 02 y$ g! k; |* g4 U- G5 h* b
let local 0
4 y5 A d' o' d7 a! Wwhile [k <[trade-record-one-len] of myself]! V: j, o H: G, O3 x6 k
[. X* Y6 q/ i" O" H; K: s& N. 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)
M5 k) S U7 w/ k, C1 ?4 _2 Lset k (k + 1)! S$ V- G# o) H* M( Y
]+ B1 G1 J) y# I
set [local-reputation] of myself (local)3 d7 t0 B9 l, Y0 Y' t' A% y0 m! O
end; W. g3 N( h j9 N- ~: y
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to update-neighbor-total
0 c0 {7 y. j% y9 X" m8 l+ M5 w& N& {6 {! a, _
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" x& W. Z% V! y/ a8 A% L- r
7 g) T' N$ s1 j4 n7 |. l% H# G4 e& \4 l6 I9 }1 A7 }
end
" q9 A0 _" F7 l
9 a. g4 ^9 g" Q' |5 l) Rto update-credibility-ijl
" j% l: E" S# B2 O. E8 }
3 @- {6 s9 v3 j9 \;;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 d8 I2 C& E# I( h& Z5 D% p
let l 0
3 K. g. j: q% I& N1 |; Z/ m4 Rwhile[ l < people ]. K& i- G8 A$ _/ o4 q; B
;;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. O. C; R4 c Q5 |; k
[
7 E9 F, [! H1 R- i/ u2 x8 _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. W7 y' b* V! I% }- F& l+ {& jif (trade-record-one-j-l-len > 3)
+ `$ S, _ ^. ~4 ~[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
+ ~3 L' U( b( z1 t; l; u- ^let i 3
# }( N i1 ?' H1 Slet sum-time 0
" q5 X/ B1 x/ N& u8 @4 x5 F2 T- hwhile[i < trade-record-one-len]
8 y# \, m' i6 r# X" `7 ~9 l[
: S) R5 N0 J1 n3 M/ \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ f" k. q4 S9 `1 Wset i" p7 W1 z# ?' J
( i + 1)
1 Y* n# g6 {8 `# h7 l0 p c] u/ [+ o; I4 ^# X4 e
let credibility-i-j-l 0. X. J& m0 R4 ~% L3 G
;;i评价(j对jl的评价)
, M" q, u w/ U. H- mlet j 3
: N# b) Z' v' c# k- R6 Plet k 4
/ J2 @8 D% ?( r) b" ^while[j < trade-record-one-len]8 Z6 s& f* k8 k6 b* }9 q. Q- U
[. K8 u' z5 @/ m& a% @
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
0 a {( g- k+ {/ k* 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)
8 L9 Y* l: }0 U" u) Iset j2 N; e7 n% U* i
( j + 1)* P Y# {& M8 v3 s8 Q
]* Q9 ~$ |4 B- u# z) ?% x& j5 K3 Q! _
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 ))$ G8 Q! u0 F2 M! W
9 R' p) \; V% N) [
4 }+ z- ?& c' F$ m
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ E3 Z' Y8 _0 o;;及时更新i对l的评价质量的评价( f) \1 V( ]& l/ M2 M4 d) H2 m/ a2 U# C
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 J/ T, |$ r+ D: u
set l (l + 1)! O/ R9 L) I R& X; {+ L' z
]
% h2 ?, @3 g7 F ^" U) E* iend
/ F6 @2 \- K% O7 N/ w( y3 X# N
# v: m0 ~ ^5 B0 M6 x& Hto update-credibility-list
" C3 c0 t& t* s W8 llet i 0; i$ P. o" o) |! w3 B7 w, N
while[i < people]
; Z* F* ~- @# f7 K* q[
) U$ B* {) F; e; Q2 d: Xlet j 02 {3 T; p% K4 m
let note 07 t1 m! g* f% F* K% C
let k 0
# m; \( Q$ h6 X) k$ o, S7 J;;计作出过评价的邻居节点的数目5 k$ e4 e: O8 a& ?5 L
while[j < people]# R) ^2 h. \. x$ E- g/ h
[
2 Z, M8 t6 p$ z& D( l& Gif (item j( [credibility] of turtle (i + 1)) != -1)
X0 K. S/ r- ]4 ];;判断是否给本turtle的评价质量做出过评价的节点8 j9 k+ K9 A% [2 O; d1 y6 s5 D
[set note (note + item j ([credibility]of turtle (i + 1)))* _5 p/ N2 a% B+ V6 b
;;*(exp (-(people - 2)))/(people - 2))]# X8 u2 b! D* ?
set k (k + 1)* B9 F Y4 f- Y# Y% u8 Y) t! Q
]
" I5 G4 e% O; \6 eset j (j + 1)
: a' `6 j( T" V0 D7 o, m: m]
1 N5 B" X" G# K* r+ pset note (note *(exp (- (1 / k)))/ k)9 e' q# c' b0 I, ~+ e' U
set credibility-list (replace-item i credibility-list note)" x) l: ?1 M @ \$ K( P& B
set i (i + 1)
3 d; K6 }: c; `]) ^2 ~' }0 T! G' r4 T4 P
end
# ~) R- _. c- W% [0 M9 A1 i( W4 O* J) ~0 \$ Y8 g. c5 P5 H
to update-global-reputation-list
1 c; u! [! y6 ]let j 0+ d9 L6 h" ]* D
while[j < people]* V5 l+ k; Z+ x2 P* R& Y
[
) T( `: r( S% q/ hlet new 09 w) x5 m" f( {' ^5 M* O6 t" x
;;暂存新的一个全局声誉7 k" I. L( A7 B3 t
let i 0
& D5 y1 A# q# Zlet sum-money 03 {# j& P. E0 }5 A: {5 B8 b- n9 Q
let credibility-money 0$ V! Z/ B1 R" T4 b0 x( W2 _, ^
while [i < people]
e, `* S1 M# K6 I[
/ D( W8 W2 Q" a; r: jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); p1 @6 r. x/ Q) `, O4 n9 T
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 a* ?5 l' q7 S6 }3 ~% C& Rset i (i + 1)
( O s- a7 S, [( a]
0 u# Q G- j( K; a2 Blet k 0" u$ D. Z3 [, X8 ]- F
let new1 0; J ?5 d7 l$ u
while [k < people]
4 F. Q) i# q$ v0 ]* w[
& C' v9 r& T! i5 _( g; n$ 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)
! V- t) ]' [- o5 }9 p- ^3 Eset k (k + 1)
. O) b5 ?6 q$ l. X7 r7 U]- Z* C3 G) X9 Z: |4 p
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 b- O L6 R+ F1 Dset global-reputation-list (replace-item j global-reputation-list new)
1 w" R. x" l E' a9 fset j (j + 1)
! ?- h4 l+ Q& C: }9 Z/ v7 p]" ^9 f' A$ s& i& ]( m, B5 F: ?, A+ P$ G
end" K* ^! L; I/ ^, V* L
. R" k9 O8 W. D: h, B1 H, n5 T$ {
; v! D8 L' g3 Q* G) C+ q2 h( g
to get-color; m0 V; o" {5 }8 a
* I$ G, ~( _* k- \3 q
set color blue
! U) A. \) O+ U1 i) {end
! y2 s9 D Q( T& y" S3 v( D. U( i
to poll-class& A2 {: ]+ M L- i2 \" t
end
5 P2 P+ [) H, H6 W. `8 E- \1 {& o/ @$ W+ _/ Z p8 `/ X' @" N
to setup-plot1
, S0 Q" \( w& Q# C
6 j1 T( m. @; q" |set-current-plot "Trends-of-Local-reputation"# c" N9 M: I$ B& }9 S
# V1 F9 u1 O; P9 l! Iset-plot-x-range 0 xmax: C4 k9 a& [" K3 N$ }; J
. |* Y5 n4 v7 t0 P( hset-plot-y-range 0.0 ymax0 o( x- z( R) P( Q$ h
end
0 I; c+ E" `9 X( W
. e/ K& F% f7 d3 x9 cto setup-plot2 \1 W7 P4 V% S; B9 k7 l0 r" D
# j+ ^5 S1 `+ i# E7 T/ x! C$ @
set-current-plot "Trends-of-global-reputation"
6 S8 O* L" p4 m/ P. Y) ]+ W+ v0 }. K, L2 o8 {0 s0 J
set-plot-x-range 0 xmax4 A& q) A) v- U/ H" D: ~! ]& M
( E- E B* e$ s! P: W" w
set-plot-y-range 0.0 ymax
1 v- ]6 C, z, C: h# ?4 kend/ B) E! e3 n* ~, y4 R$ M- z
$ Z2 ]4 X! I% G7 `, D1 Z Y
to setup-plot31 \9 u! [6 c- `0 V5 x! D
2 v: @) e+ ^- C& F
set-current-plot "Trends-of-credibility"
: i: B+ T% R. I8 V Z& K4 o# l& \9 b+ j1 p2 {3 O! ?; B6 t
set-plot-x-range 0 xmax5 ]3 C4 L) f8 K0 q+ a* J
5 K! w6 }. R' s( n8 kset-plot-y-range 0.0 ymax
4 J; ?! M5 F. zend
) U( J) Z% O- t l0 V
% P8 h3 H& j+ { O3 fto do-plots
$ u( c; E% Y' R7 F0 gset-current-plot "Trends-of-Local-reputation"
( k- {0 x [9 L' G# pset-current-plot-pen "Honest service"; {! k/ c/ o0 Z2 N0 \3 {- J+ a
end
3 M+ L1 W' K# \8 d N) q) _" N9 N' D' R8 U4 N2 }+ Q
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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