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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
4 v8 V% \. B! \; Q' s" h gglobals[
, r2 n; N6 B* n/ }9 G4 ^6 T% G" jxmax, ?& @! C' f" ~0 s% E* g* z
ymax
: V0 j' N6 |+ K4 v" N7 c3 hglobal-reputation-list0 ]! L" X g! X$ A- Y9 r
9 q& ?2 G: t5 M) I;;每一个turtle的全局声誉都存在此LIST中$ z, S) \( i( i: _; D
credibility-list
0 i2 U" s. K) Y C9 Y4 ];;每一个turtle的评价可信度 G+ Y, v- R% M3 a
honest-service8 w+ Q7 \& P b4 N4 {7 b, S$ ~& Z S
unhonest-service
+ o* n4 _8 M' B1 @oscillation
6 Q9 j" W, y) X' Xrand-dynamic8 l+ z+ y8 ]) E! B
]* s: O1 n& t# x% u7 x( Z, u* z
/ d0 x) X* b' ]# @' @' B
turtles-own[# |7 a+ i. E3 G' x' ]
trade-record-all
6 f) D4 w: E3 y6 t. _; g;;a list of lists,由trade-record-one组成3 O% A. {8 P% G+ Z; m
trade-record-one
' R2 E4 ?* A4 ?0 i9 {$ I* y- E" g;;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 c2 `4 y# \" V6 w3 F
6 t# j4 q$ ]+ _ N6 D% x, v7 m;;[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]]% d1 `$ C! m( V; d8 j! d
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]3 f4 m3 M6 e; F3 r
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list4 J' d' g) b$ j9 N2 ~4 w0 @7 a
neighbor-total g5 \( v$ S$ q. j* k' K! v
;;记录该turtle的邻居节点的数目2 C0 a& B$ `9 U
trade-time @' R, l: I: g" }+ R: C* n' m% i
;;当前发生交易的turtle的交易时间
{" c4 a/ _# J) m- Xappraise-give
& w6 L, o7 v- k;;当前发生交易时给出的评价
5 ?. U( Z0 Z, u- T; s0 rappraise-receive
. K& R6 ~' N& q" h& E! j' l$ f) p;;当前发生交易时收到的评价3 R: M& ^8 {0 A1 F, x/ q4 @; r
appraise-time2 |% M, b$ a& G2 \
;;当前发生交易时的评价时间) O# a$ | ] k2 J2 y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉' I( C. U Q' N" @+ W T/ a. a
trade-times-total
: o7 u8 l; u6 P5 q;;与当前turtle的交易总次数8 [) t6 J8 ^4 r/ \3 K3 ~: r
trade-money-total3 I5 h, f( V& H+ q
;;与当前turtle的交易总金额) {- o% ^, ^# i/ s( j
local-reputation# I6 O, {) Q/ B. ^0 M2 l2 }7 d
global-reputation: K9 Z9 z1 M6 ?* z9 e
credibility
! E6 S9 q5 `8 a; F w;;评价可信度,每次交易后都需要更新) H) E7 e2 k( O3 K
credibility-all y) P# S! R) [, Y
;;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
+ W5 ~ }" y }7 f
! e' p4 u9 |) P) H% T4 j;;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
, ~* O# N4 E; w7 jcredibility-one
: ?6 E# ]3 X% I7 `9 N: s1 |;;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
1 l8 V( b7 ~& X$ c5 l7 {/ ]global-proportion
% {) G0 E: _' D! scustomer
" v; S0 ~ C* Ecustomer-no
& M' B4 R/ o+ d& Ktrust-ok
/ n3 z/ s) C5 }, j; s8 b! Ktrade-record-one-len;;trade-record-one的长度
# j F' }* c" R5 z: r$ b]
2 n* x. J- w3 E$ p+ t! ^' v: B) X2 }9 X0 ?. {( j; @
;;setup procedure, x1 V i. i% X& O
' T2 x) K, E- a. F" lto setup
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ca- N8 G: B& \1 ^! r/ o) z: `& l1 X
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initialize-settings
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1 P% x3 {" p. r2 z/ [* qcrt people [setup-turtles]
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reset-timer' O& F! Y7 a# W- O, |! F
0 `" S% W+ p5 I( a) _
poll-class
$ I& z2 n6 L/ g$ D" I3 \ u, Q
& Z5 s2 r0 k6 u8 t0 R+ T qsetup-plots+ g, \% k7 C+ ?
7 _/ R1 {2 f+ u( ado-plots# M! u% `' d" t/ S$ ^: _
end
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, o+ Q. O n' |: b, u/ kto initialize-settings3 N9 E9 U* ]7 `
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set global-reputation-list []4 E2 n5 e1 q Y& n: H+ g
* \6 i0 E' R# Q, aset credibility-list n-values people [0.5]2 d0 A) y: s; c5 F1 I* g: ^8 F2 V! t
3 c, @ l. R/ P. S' T
set honest-service 0
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set unhonest-service 0
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set oscillation 00 ^, z, K! x& w
0 k. g {3 q. w* w8 `/ R
set rand-dynamic 0
% N% o- r3 W; Pend& ?+ X( H R' y4 j U- N9 D
$ L3 y% _7 C- [. y; j uto setup-turtles + H M+ ~9 w5 P% L& W @
set shape "person"
7 a# ?* |+ N) ?1 N- E- s0 H$ psetxy random-xcor random-ycor
3 |% B& W! z) r/ Uset trade-record-one []
3 w: h' ?. |& B+ w" i: U2 B
0 X0 V! a- ?3 xset trade-record-all n-values people [(list (? + 1) 0 0)] $ ^/ p. w+ I: i2 s2 n8 T
. }) Q9 k/ v; X1 k. d* f; P) {set trade-record-current []
$ q0 C7 N. D8 }set credibility-receive []
' K- h0 q8 N. s; u* |set local-reputation 0.59 O- w7 h( G5 \$ e9 U. w
set neighbor-total 0
3 b9 G! c D5 E. m6 ?set trade-times-total 0) M1 t9 h, w P( w" ?
set trade-money-total 0; a' Z2 j: L9 c, ?$ \7 g8 E1 V
set customer nobody
5 B! h$ s1 y2 ~set credibility-all n-values people [creat-credibility]
( d5 T% W& c$ a; Q" [ v/ o6 Mset credibility n-values people [-1]
, A6 [1 A: ?9 h& w8 ?# G+ @get-color; l9 O0 w$ g9 H5 _. w6 S4 y
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end5 X" K0 O: Z# v) a) A
$ ~; C5 I+ ~$ w5 ]to-report creat-credibility3 d" I: J1 k4 M
report n-values people [0.5]
( i: n, r' K0 U+ D( X8 o5 `5 xend: h& o- X! p% \# H# Y& s% O
0 W9 c0 ^! m8 m. ~to setup-plots
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set xmax 30* h }( Q2 H; f* G7 y ^9 v8 A, C
3 s5 @# a6 i6 q8 @' O! W
set ymax 1.05 t/ L7 v2 @, E. ?8 X
8 A, x X" J' C. tclear-all-plots: m% }3 T0 R' f6 i/ z9 f
# Q8 T: H9 t" K) z. Tsetup-plot19 w$ w1 R2 w# v4 m' N: h
# |( e$ I; D. }8 C" |
setup-plot2/ f) s8 O E- b% O `
, H& t- H2 \( Psetup-plot3
- i# j5 N# @4 L( W9 f2 eend
1 Y2 D$ ]" Q8 b/ P0 {" |8 W T8 R {
7 r7 B: E+ z7 @ ]5 ]7 i3 _;;run time procedures2 t2 Z5 z2 s& E/ Q% N) P" d- L$ z
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to go
' R- I" R( s1 D3 X4 x9 R% V! k1 W. E v" K. k: D8 b' r4 `* G% d8 x
ask turtles [do-business]5 R. q5 q3 q; `: U9 K X* z6 n
end
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to do-business ) W# u% h5 M+ W9 P- m) V+ l9 h
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" y# N" x5 ?6 O zrt random 360
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7 Q/ p% p/ V+ i/ d, kfd 1
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/ ^) n1 F& p7 f, s# J3 Jifelse(other turtles-here != nobody)[
# o2 A m% d3 o2 B* \3 ^
; a f9 P) J& Gset customer one-of other turtles-here2 Z9 t3 W" J% W' i7 e5 j( l
9 {; G$ r* p8 L5 n;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)3 O' e7 w% U; J0 M
[trade-record-all]of self2 w) y4 {- a; l0 K7 @- l4 ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% [& s) `# E) I+ H0 B
& P8 t9 [. X/ U- D/ j" u
set [trade-record-one] of customer item (([who] of self) - 1)% `7 K4 y! T. @ s9 e: B
[trade-record-all]of customer
% e# f2 J3 X4 n6 e( ?0 q
( R; p; F. b, A! U( q% I5 [set [trade-record-one-len] of self length [trade-record-one] of self% q( M9 V* K3 v3 G4 l+ t4 A
$ }! }) T' ]& V; o1 T" u, d0 mset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]9 E. `; @- D. c. ^- w7 Y
;;先求i对j的信任度
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if ([trust-ok] of self)4 n% ^4 O0 y4 C' A, y
;;根据i对j的信任度来决定是否与j进行交易[1 C( S5 C) P3 k4 F
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[$ Y: q( T6 N$ @5 g2 K$ @+ C
$ h4 ?: a1 q1 U; ~: ]
do-trade
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update-credibility-ijl, x# h- z# e1 k7 t/ ~% d2 X: ?5 u( `, Y
: R+ c; T3 m y# X7 p- S( _: l9 E4 ~update-credibility-list0 J5 r# v" l# C4 _/ g; {
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' t3 |( F7 h& d5 b# d: Rupdate-global-reputation-list
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3 _0 `+ ^% H1 Npoll-class7 M* m) L. L, D7 K' u# w
0 {6 U' r! S# f2 y; g5 fget-color& x* C9 Q; G0 C
5 z- V! E1 C) d: p/ I$ _5 k
]] }" ^# I; ~* Q4 _
/ {3 ~. y; B& U8 e ~# u3 a;;如果所得的信任度满足条件,则进行交易+ @ F+ n" a4 ^8 @2 O
' e8 R2 R: o# |* O: ~+ b: Q8 ]: X[
- E" g( K$ S% s1 n' e9 b. |2 E# U
rt random 360
$ z1 f9 E# w' o0 i6 l% p( ~* k8 `: q/ g2 u" R% N
fd 13 \8 t8 ~9 j" b) G' ^) n
8 e0 F% G% t: j V4 N2 ~] r- e. W2 B, Z l! b7 m
, M8 c( I/ E1 z$ F& D+ h9 Gend
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to do-trust
d6 r0 J) ]" N; l q: K2 Dset trust-ok False; A8 X' }. X' R7 o3 g1 g- F
6 O+ W( e2 e* S$ Q6 M* ~
; ]( v9 h" _4 u5 {' J9 S7 Blet max-trade-times 0
. m3 H7 c( V* F+ O1 Uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 M {2 |; D0 i% t( s/ ?& nlet max-trade-money 0
- J" v9 f! k5 P' |foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% W# D* N w4 b! k' C
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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+ H6 S% _* _0 t+ yget-global-proportion
) C& c4 Q) o$ Q: W! y8 I# R* Slet trust-value
9 k1 ^9 c: @0 h# Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
! S' A: ]4 [! _8 hif(trust-value > trade-trust-value)1 r \( i0 n8 D+ e
[set trust-ok true]' X& O3 |$ v9 \4 |
end
! u- Y; Q- v. |* u/ p
' c* V- y9 E) }& q% zto get-global-proportion" u2 W* c9 c$ y" u; p
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 I: v1 }% e8 I5 |9 y. {[set global-proportion 0]9 ^ D" i% [2 d, G9 V9 I
[let i 0
5 l- h% K2 t! N; B) S. @! C# U7 w) `let sum-money 0& J! g/ R; O) f6 _+ a' J
while[ i < people], _* f/ M: `% ~* n- f# l2 q. e
[
, S' f5 ?+ ~6 G/ y, T. {if( length (item i
, |8 `4 A/ t- k- ^) q+ T[trade-record-all] of customer) > 3 ). h- A# {( V& o! {+ J$ z% C
[
7 ]" c7 H. i5 z4 n1 ?1 C* Q. h" r& sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 z2 Y/ b: ~, M4 A+ ?' m
]
; a0 u ]: B ]% x' j]
% o! |3 E1 {# x* E8 x7 slet j 0+ ?+ C- B* F& o6 b" ~( A
let note 0
+ w& R0 F7 a$ U" D: I* Lwhile[ j < people]
% W4 J9 @# N z8 n; `8 V[* G O4 I3 q( V) F# s5 j$ `" i
if( length (item i
, E8 R' ~. z6 S& ^2 ][trade-record-all] of customer) > 3 )
: l V. i+ s+ m2 q' w[ v) Q7 z, K6 o8 f7 H
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 m: ]0 O1 W$ u% @7 C9 A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 o( N6 U; K, `8 l L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% E2 L5 `1 k8 }. E; p n( N
]) X) `, h+ G c4 I
]# B4 r* p$ E+ G1 Q
set global-proportion note: E+ S6 V$ V( t% i, o
]
: o7 M' L; j) E+ ~end L' |! s4 _& R: }# c+ k
# r- U: d! o. F
to do-trade
( z3 B3 I- H6 g; L7 Z& C c$ X( U;;这个过程实际上是给双方作出评价的过程6 U4 {+ _1 K3 y; K4 w+ H3 l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# g/ o& ~& M; uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% K8 \8 d3 s4 U; r fset trade-record-current lput(timer) trade-record-current! U1 P$ c. p& {* h
;;评价时间$ w& \5 B1 E$ e7 q7 M x
ask myself [
. q6 \ Z* J, k) ~+ d, m5 |update-local-reputation; @( h% s) L6 j
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ A' K, `5 S& w, C' C+ f
;;将此次交易的记录加入到trade-record-one中
W4 j; M _- rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 _" f4 w( r6 |let note (item 2 trade-record-current )
# S" a5 }7 V3 x2 xset trade-record-current
% d( _5 X) {! q/ E: E(replace-item 2 trade-record-current (item 3 trade-record-current))! ]5 k1 [9 Z$ v% B* Z) L" E
set trade-record-current% W6 v p; c# v) I
(replace-item 3 trade-record-current note)
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$ p1 X3 X$ ~, Z' `# E4 m0 `( I2 l/ d4 k1 W
ask customer [
! q ^- k [ n0 F7 O$ }, [update-local-reputation& r8 }$ l: b, n
set trade-record-current7 F! p2 v" i9 A4 f, b2 j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . }/ \: \5 s8 K" K$ U
]
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3 X. _# q/ O6 p7 o/ _. S0 v# I( Z* Q6 M8 v. c1 {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ H) E/ C9 I7 p% i
q' I9 Z* }) n$ L) I$ m# S
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ R( Z" C S1 G& U+ z* X$ Y. D: ]- j8 A
;;将此次交易的记录加入到customer的trade-record-all中
" h6 Y+ u) m- M4 w, u" t' T: Iend
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to update-local-reputation
$ H# |1 d( a& h) h) u0 Dset [trade-record-one-len] of myself length [trade-record-one] of myself
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;;if [trade-record-one-len] of myself > 3 6 F7 b6 m% I# t% F+ l; r
update-neighbor-total
5 \( B8 i6 m( ?$ U. s;;更新邻居节点的数目,在此进行 b$ y% p: V8 k1 V
let i 3% h6 f: E) V1 R8 s
let sum-time 0% v O3 H6 I2 N
while[i < [trade-record-one-len] of myself]
& B! l; {. A6 \[
. M* G0 @& w+ ~ x$ wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 x3 Y) ^- P9 M; w
set i
9 e2 Q7 B% I* |: W& t7 B) p/ ^; _: ]( i + 1)) V9 T! w# _0 F* d
], \. a3 c( }! @
let j 3
6 o5 z* Y5 ^) _- D! Hlet sum-money 0
/ f/ c& n* }4 [' |! X o1 q* X( f, s4 wwhile[j < [trade-record-one-len] of myself]. m7 c7 f3 b3 F
[2 r, I& t, `0 W
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)
. W( C/ H, {8 R# V+ ?& O) uset j' r& g w3 g d1 Y' M
( j + 1)
2 v. d8 p. q# B$ O8 h" q3 i& []' X* l* ~8 c8 t4 L/ \) _5 Z5 |5 u
let k 3
3 R4 v- E& J N1 S6 e! f8 I0 Q1 L) Xlet power 0/ x) L% @) r [& p* Z
let local 0
6 |7 l. F5 b. z3 B) hwhile [k <[trade-record-one-len] of myself]1 M; g: Q3 i+ U5 m
[5 ^6 u D" A, b4 ]0 P* [: R) Q5 T1 Q
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 ]4 x& R- M' ]) e6 L
set k (k + 1)
4 d6 H- z& w0 d# I4 u]
" l) G8 z! \, |2 D- ?& Xset [local-reputation] of myself (local)* C) e# [2 t1 x8 |+ I
end3 m0 O+ W4 L! q# w/ ` e u! u
3 T9 ^3 [. R8 ?8 Z4 o5 }! s
to update-neighbor-total# M! N3 Q8 y0 M+ {# X
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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3 A9 _# z$ B1 o; d8 tend
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to update-credibility-ijl
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. \# a/ ^. e+ e6 t; o7 C; I1 [;;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。2 x9 z7 c0 q) n4 O1 Y
let l 0; R6 ]: R" X* }! J5 {6 A% O
while[ l < people ], b# t. | ]+ O4 i9 b2 O
;;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
2 `$ C7 K {6 n: s1 C4 g[+ J9 F; p9 u5 T( D4 Y9 m) q& S! C
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); Z. F2 G4 d2 y6 r% i, p% o
if (trade-record-one-j-l-len > 3)$ V j- N& w0 S' W* H* N- T# {5 l
[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
) u( I& p+ X( I* S: qlet i 32 f* ^) X+ J4 v
let sum-time 0
5 s# Y: t. t0 h7 f( z. Y/ lwhile[i < trade-record-one-len]4 D5 P# c4 m: @6 [. p0 U
[
8 F* V! G4 L2 }, M4 Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 `- T9 b' x8 j6 ?3 y* f \set i
* N2 p" o" q( V& V( i + 1), c2 @/ u7 `) H% W- X
]
8 w7 v- S* m, z6 c% D g3 Wlet credibility-i-j-l 0! B; S8 X% x! S) ]; _) z
;;i评价(j对jl的评价)# Z; [. H' Y( p; ~" K6 B
let j 3
6 G: \( R/ S5 C. m* R1 I, plet k 4+ X& W2 C, g' r! C
while[j < trade-record-one-len]( M" \- j, Q# M. I( ^& H
[
0 Y9 ` x2 d6 R% y, V0 {4 T9 M: dwhile [((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
6 o' e. w) [4 p" kset 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)
: e% y" e& c3 X0 V' f- ]set j( M% P9 H9 i* o. V/ m
( j + 1)/ k% d$ K' N5 y$ n+ D
]
9 }7 m! O+ S: W+ a0 rset [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 )). _3 z* ?! V2 B1 @5 W. L& O4 R$ ?/ A
- u+ e$ G# W" A' c6 x [
/ }' \6 A5 d$ ]$ z& _% m% u' tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% Z6 E/ B6 U1 ^( e9 C;;及时更新i对l的评价质量的评价& b5 T* b m: V7 A. J
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 P# \; l( J {2 \set l (l + 1)
% o: M' `. i2 Z j], r& F& H9 `/ g" _7 q3 E# z
end
, ?5 a: K; w) G+ l# g% \
( v! H# ]' M! u& ~- \ ~' D9 O/ n/ oto update-credibility-list
0 o2 |7 G# \8 Y, l. }2 Tlet i 0: K U, i! e1 w0 l
while[i < people]
3 ?: f5 V' u0 x! o. T$ w, r[
' p6 x. `0 o$ \. mlet j 0
. w$ G S/ }; J4 D0 T, l; \let note 0
5 `2 e- R" r$ `5 rlet k 08 a4 k- f) e o# B
;;计作出过评价的邻居节点的数目' ^$ D$ \! S. Q8 t
while[j < people]
/ s7 T& g- ~. \ C+ ?; I3 m- T[" K! s/ I# x( {% P8 A
if (item j( [credibility] of turtle (i + 1)) != -1)
4 z- `5 i7 Q* L+ Y; O# M) Y;;判断是否给本turtle的评价质量做出过评价的节点
6 a+ t* e& f7 L! E8 U, X( v[set note (note + item j ([credibility]of turtle (i + 1)))
: {9 t' j% W; e% @;;*(exp (-(people - 2)))/(people - 2))]7 _( r4 l8 \, o9 H1 G5 t. L) N
set k (k + 1)
, x) y) z/ }+ @, d]5 q0 Q, R+ Z$ @
set j (j + 1)$ z1 F% \8 w8 L: {# x$ k
]8 N% d& ~) Z9 `% y/ n, r6 s
set note (note *(exp (- (1 / k)))/ k)
( H5 J h' ~5 M1 ?1 Q: W' u6 k# ~) ~set credibility-list (replace-item i credibility-list note)
/ k: K* w6 \: t J+ S, Cset i (i + 1)4 n6 D' Q* w% G9 i, F4 V; V
]
7 [0 w a3 c- b0 D$ q3 B9 X7 F) ^6 C( Aend
+ @( z. B1 C' W& {8 _, ~4 m7 ^/ k+ R9 u
to update-global-reputation-list
I* t1 \5 X o" Klet j 0
0 G- v; i9 R, ?( A# dwhile[j < people]& v$ A0 N. |+ X6 J
[% X/ I+ Q7 Z' X3 M) L, C
let new 07 {" c+ T) ~4 h
;;暂存新的一个全局声誉
g4 K; O* c. x& C* Nlet i 0
# I3 t4 E% R5 X8 {let sum-money 0
0 O( _; f" |# r2 Qlet credibility-money 0, F& c9 V3 m; @9 _$ y; K
while [i < people]
$ l0 v" |2 ~& K q[' e. \; O! u; N9 r3 I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- B+ v5 i) \! A9 E
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
4 D' ?1 P4 x* l$ p7 i; b. y7 R2 c: g/ yset i (i + 1)
/ y! v: q' j0 D) v1 v' q]
2 @5 h3 M p$ U- O) Q4 @: rlet k 07 L1 d, K+ S5 D6 C6 K8 B
let new1 0
1 d5 H8 k# S" Mwhile [k < people]% { \7 ?/ `, |- [9 l- P. O- v
[
& q3 L& K8 Q0 K8 dset 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)" y) F1 c: c6 J5 O" ?5 t" F3 F
set k (k + 1)5 L+ [# P' Q5 Z9 X! X
]8 S. ?9 K( G' |. g& L5 H
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 i! }. }; A/ O; l v, P
set global-reputation-list (replace-item j global-reputation-list new)
& Q0 F, Z# _( d' S( X3 {% _set j (j + 1)
3 n) b- d' Q& n]& g" X) {- u7 I
end, a8 Q9 _5 }" P R
- i; w" @+ Y Q _) n5 T5 @
+ x5 I/ b3 l9 a! A3 U5 E
- T* m H3 t4 I' [to get-color
) u, ^1 C1 Q# i T _- u# s7 Z! j9 h4 Z7 J8 E
set color blue. H# \# z* d! S! d2 K6 B
end; y" F# d" M n! Z# N8 w* H& e) l
) W8 _& a& _6 `6 ~+ h( zto poll-class: s5 B. z& | i G. ^# t
end
, ]( q# y8 h9 r1 _3 q% N$ F2 j, G' R& r# d) r" S. S
to setup-plot1' }; Y9 B8 r' Q1 f. D) l3 K8 p
g" Y4 X$ q. O, _
set-current-plot "Trends-of-Local-reputation"7 T: |. ^7 }* ^2 e4 Z/ Z, ?
+ T# G" _5 ], s" Z
set-plot-x-range 0 xmax
% ], `4 w7 k$ x- Y- C7 _/ {4 w; b3 i7 V. C( X. O
set-plot-y-range 0.0 ymax9 a3 p" J4 O6 Y
end/ ?, F& ]3 v3 t) Y8 U
1 A, L0 e3 V# l0 s/ A" Cto setup-plot2- R. j* Y+ z s" i, ]" {4 j
$ E! L a5 T! Y% i* G
set-current-plot "Trends-of-global-reputation"9 Q3 A& y5 r p& n* K
" H W2 G0 V7 v9 ^5 U) Z9 Sset-plot-x-range 0 xmax: g& J5 I) R1 K5 ]# U3 a7 |& z
0 Y* U" i8 I7 t O% Y' M/ ?
set-plot-y-range 0.0 ymax& h% Q- w0 V) c, M2 ]# L- M
end3 `6 i, ?! t! K) d3 D; M0 i. w
4 X; n# \# E4 L
to setup-plot3: { {) J, R& t, q3 k1 Y
1 M. ^2 X W5 J) E( x! c3 Mset-current-plot "Trends-of-credibility"
/ c& R s8 ^: t; K" T% y1 v* O9 Y8 S6 e, H( r4 k4 I5 O
set-plot-x-range 0 xmax8 q/ r' j; ]! o" {' |
$ D0 t$ i: \7 f* U* j4 w
set-plot-y-range 0.0 ymax3 n9 }: ]! g$ y4 r4 f+ x; T0 d
end: g8 H( K8 h$ A7 t) \( ]) r( E+ F
: o7 l% G& U% ^! x( ~1 h* m$ W1 l
to do-plots$ q9 Q- {2 m6 A& R8 m$ {" `5 I
set-current-plot "Trends-of-Local-reputation"
& D* h" O% b2 r; p! p4 Nset-current-plot-pen "Honest service"8 S1 m" Y6 a* c! Y
end5 b8 I: F* T9 u' C9 j$ _* D) P1 @, x
0 x0 G( m7 a! h6 w. D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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