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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
x8 U7 H0 W1 N7 M3 ?" }globals[+ I$ N: `7 {: b3 W% {6 z
xmax; d0 D2 K6 t9 U1 J7 E* B
ymax& v! ~3 o" ^5 W c' v# [6 J9 T
global-reputation-list' H# V! I' }: U, L5 {) R
* o% n; ?% `% Z1 n& c
;;每一个turtle的全局声誉都存在此LIST中
' b5 ^( D1 @6 u& r4 d+ dcredibility-list0 W0 _3 Z3 Z1 r! E/ L( w
;;每一个turtle的评价可信度
1 l! u8 a" X4 bhonest-service
3 R3 `: B8 p- h' C4 f: T. Lunhonest-service
2 Y/ v3 `- U8 W9 b6 moscillation
; M Q- E: y& T# erand-dynamic* O9 W% U; L7 H y0 [5 U* \9 @ ^
]" C' g+ V" h1 h W! X! N. b
1 U4 P! R! X9 b
turtles-own[1 u: S8 U! A% m$ i# O; {
trade-record-all
; Y' j0 M7 ^% o. }& K' o+ A* R. ~1 f7 |' j;;a list of lists,由trade-record-one组成
8 J/ a u. C' U/ D. l: ?trade-record-one
3 Y( s# C# P! u5 ^9 T6 R$ [;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- n+ ?3 S9 _1 j0 B, [" T- ^" ?2 {6 @( E& z# e2 Y# T! x
;;[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]]9 c* S1 C1 q) W8 ]; ?
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]
+ Y8 v q1 f8 J; Z% h8 vcredibility-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
9 A1 a- t. Y2 h- @8 k0 ^neighbor-total
+ z" l! \) L8 v+ i; r. o% ^6 x3 ~;;记录该turtle的邻居节点的数目
5 J+ T# `+ B$ K$ f" Otrade-time$ @* I0 N& p2 h* C" E& H
;;当前发生交易的turtle的交易时间
% V0 \( f8 W2 B7 F; p1 K9 oappraise-give% k7 w8 ~$ ^2 N8 N6 Q, W/ x. i
;;当前发生交易时给出的评价 T, P- [& e I
appraise-receive# D! `, F* n; Y9 F0 x
;;当前发生交易时收到的评价
, V J3 y, |9 z2 k" J& h, `, V7 _appraise-time1 E7 v* a- S) k5 Q! [
;;当前发生交易时的评价时间
- z& j1 @- H/ e$ j9 s5 Olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉( s2 F" T2 [7 d# M
trade-times-total0 K, g' u( O- G- b' ]3 r8 o) K
;;与当前turtle的交易总次数3 p8 T. z1 ?; {# l% E) y
trade-money-total* f a! z3 ?2 A
;;与当前turtle的交易总金额
; @9 G! o4 Y' l5 Wlocal-reputation
+ I4 p( z0 {+ Y. b! qglobal-reputation4 c- f, o" ?; m) ~& T! j' E
credibility0 @: g. ?" N: D! j3 E) U! @
;;评价可信度,每次交易后都需要更新' A) X7 H2 R& @0 }: |1 d/ k" @' e
credibility-all2 u9 B) H/ a# k; U$ q* r
;;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. ?8 H4 k I! f0 N. \4 r
9 K+ {; k5 P2 i c7 M1 ?
;;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- q" L) p- w8 P* d+ |4 E
credibility-one
* ]! D" u' s6 q7 P$ I P+ {0 G, };;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 u$ W6 ~% |) z' n: V
global-proportion* X1 V4 V Y: T6 X1 p- E
customer+ a# Z; F5 i* ^: A% r
customer-no/ Y2 a! q% R+ I
trust-ok, h4 n3 C+ P/ ^0 w( `6 T
trade-record-one-len;;trade-record-one的长度
: m4 ^& C# a* `( U" U' ~]
' ~% f2 S, y* |( U
5 F) y# t1 \9 f2 F; B$ |- s: U* L;;setup procedure
8 B# x) t- k/ g; D1 j X9 z+ [9 q0 J- R
to setup
- a7 Y3 j* l" L$ s! i' M+ j. i% p, O9 ]+ |$ M9 q
ca
8 F5 H. ^3 a5 D; B, D/ |. P0 H# r( d8 K
initialize-settings2 M/ _$ Y3 v* v2 g3 s
6 C2 k6 U$ B A; G
crt people [setup-turtles]1 t, X2 H% z7 {; d* L
" ]1 u: W; Z! s9 @reset-timer3 D) v* [& p( Z" q& \8 ~+ T
. q: _- n' d; v/ {! h( Q/ z( G/ M8 e
poll-class1 c9 `. M( o# X( m: I$ [
! x" S! j7 }+ t4 E+ {0 wsetup-plots$ e0 s$ I- g3 U4 S d# d0 ~. _
! P5 O: o" t% ^ B' Q
do-plots+ g. j' Z7 e* ^+ X* P
end3 ?- t6 `1 G. M# w, m( \
7 @( K' }, ?3 G" u- {0 b" D( \to initialize-settings$ }! C" t5 ~# p, x! A# t0 z
2 y% w# g$ G, R2 o8 V) S
set global-reputation-list []
9 I7 Z1 c7 V) n7 J; U( O) ?* G+ ~' `3 `- A2 {
set credibility-list n-values people [0.5]/ z8 s2 x4 F! r4 D f' ^5 `
3 P1 E* b4 j# |set honest-service 0
@: r. \* Y3 K* C1 w T# n
) N$ t' p, W6 r0 x2 l/ Wset unhonest-service 0; O$ m X1 X% b; j
! b1 I8 m7 {0 @! y) f. Q/ |
set oscillation 0- e7 p+ z$ w, M9 T$ \
' V. ]- V. ^) i: \' m+ I: k" g
set rand-dynamic 0
+ M" F {, `4 ]: w6 X% Z0 Kend
# s. F9 }! W/ Q5 \8 ^
7 ^! i+ ]: [2 u2 Q0 S0 n, ?to setup-turtles
" N* n" ?4 k) O9 gset shape "person"
* |% M6 ^# C6 M4 isetxy random-xcor random-ycor1 V! D+ _& C: f
set trade-record-one []
1 e5 R1 A* e- p) R3 z! o
+ W; E3 O& ?, X0 c- T6 Z* wset trade-record-all n-values people [(list (? + 1) 0 0)]
2 N( x" j2 r0 l5 T k8 B/ K# v6 D
set trade-record-current []
) V. K7 S& L& g m$ Q- Wset credibility-receive []! a3 f I' T$ `$ @
set local-reputation 0.5( j/ I8 _; ?$ P4 t, \
set neighbor-total 0) E/ l4 [8 z! V) p- g, V& q5 C
set trade-times-total 0
% u) _% J- ?$ S% F4 m0 pset trade-money-total 0. \1 |9 D4 }: G# ]
set customer nobody5 m! @$ p0 K0 O. [
set credibility-all n-values people [creat-credibility]& V6 ^" S2 k$ W5 N6 l- W
set credibility n-values people [-1]
) S4 `+ m# w# Z uget-color) N+ k0 |& d2 j+ I
% ]4 S$ x4 I$ b9 j- x8 }
end
0 D5 A4 |5 B1 r' I- v
* B$ |$ e0 y9 ~% n, xto-report creat-credibility2 I4 S& t" g" F" d' M$ N
report n-values people [0.5]
2 I0 l3 ^8 ~4 I; @9 Hend, x* M I" O9 j
% c7 ]. p+ Z5 B4 \. u0 b: x9 [to setup-plots
8 z7 K) g+ h5 \2 t S( W# X4 Z# a1 W9 L
set xmax 30
7 \8 ] I' T/ j( A' {+ `: l2 d* q8 |9 t1 _, w+ n
set ymax 1.04 c! C( ?0 j3 @8 H% N4 [, Z2 @
6 b& O* x0 ] y0 L o4 c
clear-all-plots! J8 ^; ]6 V5 _0 ], W" X
* c* A* y' B8 _) L* n5 ^/ q
setup-plot1
2 e3 A2 s7 |7 x0 d8 [9 N* M [) G
setup-plot27 [0 b3 S3 Q2 m0 ?& z# Z6 t& |8 o
6 A& g9 V0 Z! Q8 C3 [$ ?
setup-plot3- l0 |( ?6 s$ `, B
end
" ~9 j! W: S/ e {/ s1 k" [& j
* U- k3 C& I' V4 q1 G+ b- ]3 A;;run time procedures
% j: P6 j0 A) x9 Z4 t
2 h/ C) U) p8 M; U5 Qto go
! ]# N, B; h4 N$ b! y. c( ?/ a. f( p
ask turtles [do-business]& p w: a! K- Q r) W1 t$ t
end3 ^5 k( D) l) M6 u. ~6 X8 D, T4 i
: s. d! } R% H1 k3 e6 p. C
to do-business ( }$ J. Q$ Q1 ~ A
* d4 D5 m* X* i9 _' |6 X9 F* N' a9 ]* X. X# _' f
rt random 360
e% E3 E# n8 [& a3 Y$ H8 h) D! v" p4 }4 D
fd 11 D1 v T- o9 [2 v, D G, J+ {5 l7 F
/ Q0 Z- }8 [5 Z2 I& W3 cifelse(other turtles-here != nobody)[
' ~2 r1 `- e4 d7 g' O- y
5 y& X; f3 I5 y/ d4 Q+ G$ vset customer one-of other turtles-here
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. X3 H: A, F$ |9 @;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)1 ^/ q8 M% H$ j+ ?* r2 h
[trade-record-all]of self7 j! Q* j. D9 U. B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; K2 d4 B% r0 P" i
7 q: c- ~+ l: y2 z. h' W
set [trade-record-one] of customer item (([who] of self) - 1)- ^1 V: H. a+ A9 D) ^+ B
[trade-record-all]of customer+ _2 }! z2 R! G S5 J( L
/ P9 M# y7 x8 {3 w; {
set [trade-record-one-len] of self length [trade-record-one] of self" ]) d% R Q, q) @& K! t
6 P+ V1 A* |; \- U, w; ]
set trade-record-current( list (timer) (random money-upper-limit))1 d J5 d' q! @3 Y* m* A
# j9 B" x4 N5 N# p/ R6 K' `5 Pask self [do-trust], {8 n. A6 t) p4 R% o* C
;;先求i对j的信任度
; }* ]1 U- l! X3 L# S* T
: E2 l' S1 b$ e5 Rif ([trust-ok] of self)
# T( u9 z# ]+ X" i( c4 V% v& O( N0 Q; t;;根据i对j的信任度来决定是否与j进行交易[9 F7 R, f0 ^+ L- }8 f
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) W5 L* _+ }0 e8 O+ l! t4 z
7 |; H6 W, p' z, b, b0 [[- x; }% j! x% j: V. {2 h
: B2 J2 ]: |: i. \# p- j
do-trade
6 E- e* d: ~' C1 ^* D. ]7 ]% X: O3 |6 @, v9 ?7 I a
update-credibility-ijl) m8 C2 ?9 x- T% w
6 b: T" W; [, A+ L0 u* `8 {6 Gupdate-credibility-list! k; o7 H" i7 ?' B( t- f
) J7 @3 X8 V' T% @ {! H, R7 Q( k
& P, u. F6 V3 O" l; r5 Rupdate-global-reputation-list8 l6 o/ X0 M$ Q& t. X6 p
( O5 @. K; w! W4 Wpoll-class* n" _; w1 \7 A. q' ?5 c6 s
8 E# z0 P9 G2 I7 V: r R
get-color
- H/ A0 X2 \' e4 {# F5 z- P; w) m* ~. f8 D0 O. q N
]]
( i) V* z: |7 \0 v
8 x0 d! H; ]8 X7 c3 ]- r5 [5 o;;如果所得的信任度满足条件,则进行交易
7 L) E6 _( h; e/ n$ H; M1 n' ~# G! f9 C8 s
[8 ^4 Y, I, r- A& e# K: y+ K
, ~' ]) q0 d7 ^' E; H+ Zrt random 3604 g- T# Z9 O" z4 V& o& G" t
; M" L& [6 e2 l; z, }+ P
fd 11 m5 e' b, w0 q- F7 t! ~; k
6 `- n% [) ?' D% I6 Y/ X
]
U8 Q, W; p0 _0 b
8 f2 U4 L* x2 _7 u9 T3 \& qend
9 u' a/ S4 C) R0 g: K* Q
/ l0 M2 D, d4 O1 g& `0 P8 L, B1 Bto do-trust 3 }) b1 W. h6 }; ?' Z
set trust-ok False, k8 G Z& q, b/ ~$ _, H
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" z9 ]* m" D' u- M+ R
let max-trade-times 0
. i, S3 L {( O4 ^" P) Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: t4 \. e4 S$ f. @
let max-trade-money 0
# z. z& g, j! _1 |foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" s+ P- F- Q) V$ ~4 P# O& e
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) v D# D4 H' n5 S! [' z# V
. ~8 Z! o( T/ C
, R3 Y8 y j' e/ T7 p7 j& z. t
get-global-proportion: c; _( P1 j" u% ~( W. B
let trust-value( v9 {- |% z* U$ e. q0 S
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)0 @6 z q9 ?; I1 ?3 F
if(trust-value > trade-trust-value)* V8 y4 Q( [5 ]- J$ e* z( V/ I/ t8 D
[set trust-ok true]
! h" _$ k! Q9 Q7 R& s9 j2 Send
) ^$ J3 o4 t# p$ w6 t
& V/ u# S, G" R( qto get-global-proportion
, J* i0 D/ X3 x$ A1 xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
Z: g8 o% U. j8 H. z N3 e[set global-proportion 0]* S& E/ S I- l/ R* J0 N
[let i 0; e8 @0 [+ e+ E o' u2 V
let sum-money 0
/ j. [6 w5 A2 Z2 l N6 L0 u1 kwhile[ i < people]
8 P4 |/ k7 V4 f) j3 |1 x! Y5 V! l[$ t8 p8 H9 f+ o/ q2 U& k7 A
if( length (item i
2 q& M. h% C& b& q/ J[trade-record-all] of customer) > 3 )
3 s4 q4 G/ W) ]4 ~1 Z/ ^2 j$ _[
9 @! j8 Q9 C6 m0 S8 Xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: {: p- [7 S# W]6 v }; k7 \- R8 ]) `
]
& j; z+ b2 D; M X. T) v1 Hlet j 0 j4 W$ s/ d3 y: U8 n- W
let note 0' S8 l" Y( ^+ ]! R& ` J- ?: j
while[ j < people]. Q1 u" p' z8 [& w I, O7 k
[
- J/ b4 p& X6 u3 \8 Z" rif( length (item i# ^2 W- _) V; l
[trade-record-all] of customer) > 3 ), \ r U$ p/ u, R+ z! T
[9 Z, B! n; [" G7 L5 a' s
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* {+ \ g/ @ l2 d! U; _4 a) w[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 \4 Q. I! r I1 t$ Q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 U" ~/ ?2 m1 G J
]# I: Y4 y" R3 b( O6 }) Y/ V# G0 K7 P
]# d: t B8 p4 p. w
set global-proportion note& u5 s# w* d8 E7 j S
]
; S' ^5 x! n7 Z! I1 send
6 O, q% N+ q! I k: [- [3 f2 m9 B) r( b
to do-trade: z" E3 G$ Q; h$ A8 e
;;这个过程实际上是给双方作出评价的过程
( u- r% j9 m. a* a" ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" R. i: W. P, F( \4 r5 q# @* \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# r4 E# h9 I; X) u1 x9 v
set trade-record-current lput(timer) trade-record-current; ~/ N" m5 n& M0 r h7 F
;;评价时间* V' F: }. g: r9 Y
ask myself [ F9 o" A, V6 q( y# n
update-local-reputation
f1 M4 {- {# I0 t9 I! i* `set trade-record-current lput([local-reputation] of myself) trade-record-current
]6 t, m; y5 Z]
; H4 Z, v( R- _, t7 wset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 L; d. i6 D! i* V; K
;;将此次交易的记录加入到trade-record-one中8 k2 G& Q0 V1 l$ f1 F- E1 H
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) B* E) |; t" B" p( s" c3 r
let note (item 2 trade-record-current )( \, V# ?1 z- A, ]
set trade-record-current% U7 Z1 Z9 ^- p* y$ [
(replace-item 2 trade-record-current (item 3 trade-record-current))* v) U3 e: F) ]+ d
set trade-record-current
( h+ R! u$ ~7 W* |. W(replace-item 3 trade-record-current note)
& \. h* @' G% S9 q
. x( j* S1 X2 w3 f3 B0 e8 ~2 b2 U" z- r" M7 Y$ s
ask customer [5 M G. f9 z3 J6 b$ H
update-local-reputation
! j9 `, w# Q4 D; E* xset trade-record-current( U) k/ }. ?6 x3 V" p3 W
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! e- t! S) p. ]- W7 z( m) \( \]( [0 n2 C& o0 J' A
, E" B/ \0 e6 i8 ?. A2 a9 d* B2 k
% T9 F" y: H+ A" y5 A4 T" \set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. s0 s+ ~6 z' G; G+ i
; u0 D% p% `% ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& I. x9 d" @ T5 x& ]# u;;将此次交易的记录加入到customer的trade-record-all中& k6 x5 \# u; H+ E
end
+ T; W( E+ N4 G( Z4 @6 Q
' _3 m6 i1 x0 J, V+ Kto update-local-reputation
8 L2 w5 F5 A# k0 O$ w. [/ Tset [trade-record-one-len] of myself length [trade-record-one] of myself: P" u3 o" a: r5 q! n0 B3 d" ^
$ c, z; s M9 J- O& z
$ N% A4 k! S2 ^" P2 q
;;if [trade-record-one-len] of myself > 3 2 B4 H" ?7 I! h( F- x& Z" j
update-neighbor-total
K( j" E* a6 ]) I;;更新邻居节点的数目,在此进行7 O- |3 Q. e! y& ~+ V% Q% j2 j( m4 x
let i 3
- b3 e) _! L, A% dlet sum-time 0
5 ~. }7 b7 k0 t% V n4 swhile[i < [trade-record-one-len] of myself]
( ^( L% ~" s/ Q[
+ B6 ]0 S$ j& N5 E( Xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 p; i' z& k' m B) Xset i; G1 C. I) ^- Y2 k) v
( i + 1)
4 P3 O* i7 L! H$ ^9 t]
/ ~0 H1 q* |$ H7 s# Rlet j 3/ Q( K4 j* F' a
let sum-money 0$ S6 u) @0 y$ @
while[j < [trade-record-one-len] of myself]
$ C5 Q( O- K0 ^9 B1 X7 x5 V[
1 B1 i6 E/ D4 O, M% `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)
1 p, i% ]( {5 R" N8 Y! p/ vset j
8 A2 h0 M+ E0 H6 G$ Q1 W4 X# L( j + 1)) t/ v* h- {: v* R n9 S7 a% X- w
]
" B5 r1 D2 e8 S3 T v% L7 Slet k 3
+ `4 y/ F& `* N3 {# ^: `let power 0$ s# X1 K9 `) Z7 X) Z2 m% F
let local 0, {8 b" @# y$ ^# C2 O
while [k <[trade-record-one-len] of myself]
2 w# B6 Y- h3 J2 @' f( F' k[' G8 Q# h# X# T- ~
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) - ]4 r) e. r) p: Z: _( Q0 R
set k (k + 1)
) g4 ~! E! b2 b7 o% j! D]( [$ O' L2 b& _+ J+ p1 y" H- _
set [local-reputation] of myself (local)$ l% {2 O" p8 M( U
end# w5 l+ x& z4 q- ], M: n/ q
' x0 a% b% o) ~8 E7 r% q) G) r- U- L [to update-neighbor-total+ x9 F0 {# B, ?$ |* R2 x0 S
7 x2 d$ s: A2 _
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 ? y+ G6 u% P. h
! E u1 K( p, Q# R& v1 ~
& S2 M: i2 J8 w1 e2 i' Oend, I- t- o1 V/ Y6 z" t; S5 m
( @& U% i& G6 R& c3 \to update-credibility-ijl
: Q* g$ D6 {- X' T9 h* l# O _6 [) N* X( S% I6 v
;;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。
( N0 a2 A6 t4 l3 Ylet l 0
+ L8 M$ c- z3 m' e0 Y5 lwhile[ l < people ]. k* A1 k: [' @5 b. W6 M
;;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- g. w6 Y8 Y/ ]% g) {
[8 s1 U M; O& a
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 [' V) ]+ @4 F, j: [if (trade-record-one-j-l-len > 3)& s8 \! j, c3 w! ?
[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
N" ^2 }. F8 R4 t) b, |let i 3% h; y$ `, q5 n6 \ i; a1 ]( O
let sum-time 0
' W# g# |/ u2 k# ?* G, dwhile[i < trade-record-one-len]
" e. Z+ D+ p% w9 A[, `4 C2 U/ W1 K6 n% t' i0 s4 H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- \ o; w7 Z3 i% @: w- z" Tset i) {6 C) _$ N& S
( i + 1)
3 L* O( {( G i% j]
: ^+ y! L4 N6 U$ f9 R" S/ X3 qlet credibility-i-j-l 0" s) Z- w( j5 D
;;i评价(j对jl的评价)
( q+ T* u, D+ P* L" S2 ]4 x% Xlet j 3* g/ e5 M1 M4 _1 Y4 s
let k 48 z# }! o% J! B, A7 K
while[j < trade-record-one-len]! u0 e# u( O: h7 z/ s
[/ a+ s4 L" Q" k0 |: Y8 j: ?" d( r
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 S' s" q6 {6 E9 _4 i5 ^0 K( y' 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)
, s6 q) Q7 o( y8 r: S5 W" o% }" ~ Jset j
& M0 ?5 D6 r3 i( L) b( j + 1)
/ x# @. P: y* p: C# ^" T: ]]5 d% L! u1 s2 H) }, l( Z
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 ))
" \* D$ @ m C8 j2 ?" |5 j/ d+ x- R7 e9 x) V% n: _2 U3 Z- t
' a& b2 M: ~. n; R, N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- L0 }5 f; I/ t# ?. ~. C5 a2 w+ F;;及时更新i对l的评价质量的评价
' F" w2 F5 x; G8 u/ ~& s; Hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] l! `9 ?" }3 Q- w: V/ L# R
set l (l + 1)4 g; l6 d( V4 |! a& w
]
1 V, c9 R/ F* v& a- H6 Lend
( p9 o3 o$ N: ~% e k' d$ V; g: r1 z, S% I1 ^
to update-credibility-list# o! T) w7 p+ u- r% e4 x7 U' w
let i 0
8 F5 X H7 L! F* H& ewhile[i < people]# N" {; z- i' ^1 i
[3 ?+ [& [: @" ~% j
let j 0
* @/ w% }* m& o. dlet note 0
6 f9 e- i X0 n! n; v( zlet k 0 k& b4 g) U+ D
;;计作出过评价的邻居节点的数目1 A7 M; V% ` a' d) ?
while[j < people]' C$ I8 u" }9 g6 \
[
/ j" u; x4 F( \if (item j( [credibility] of turtle (i + 1)) != -1)
5 Q8 P: M) T F) u;;判断是否给本turtle的评价质量做出过评价的节点
! A! \+ Y4 t- I: {9 M7 T% C[set note (note + item j ([credibility]of turtle (i + 1)))
0 o- F6 T) D7 _/ V;;*(exp (-(people - 2)))/(people - 2))]
+ a7 d# i# y d+ xset k (k + 1)
$ ^/ y' W" p$ g4 S* j* O9 o]
9 O1 P5 X1 t9 F! c5 a7 w2 Tset j (j + 1)% p. @$ ~/ q5 V/ a/ T' A
]
}' ?2 K6 Q& U; ^% j' oset note (note *(exp (- (1 / k)))/ k)
# _5 Q6 C6 Q) U8 f8 |set credibility-list (replace-item i credibility-list note)
1 s5 `" i$ k+ _$ c* Jset i (i + 1)
7 o' ]) D3 R6 H1 d" T) r]# U& L2 \# C: D' s1 k# |
end
6 f, f0 L: C% @
6 o# K- _, f% O3 ]& o& ^to update-global-reputation-list
4 O# m1 s( \6 h4 V: \. qlet j 0
: J, R5 M1 l1 z/ C$ ~! ]while[j < people]2 j J' U1 g- M2 u
[/ j7 Q# y) U) Y
let new 0
' n1 p G3 |1 h' `;;暂存新的一个全局声誉
7 p( b$ Z$ t, O! R, H4 alet i 0
1 [7 F, W: q3 Y4 llet sum-money 0
0 u) H$ L c* Ilet credibility-money 0
1 C' v& H8 [8 O* {; X( d" n7 Iwhile [i < people]
) k5 O& Y* K1 r7 {3 j+ |* k[
: K* ^, v! ^$ w4 B6 [set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); a4 D2 i- f" G$ _
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 b' J1 D7 ]4 B! y4 X
set i (i + 1): ^; t+ T7 i) a/ G' @; B
]
8 y' I7 C N- n$ }. b. ~9 llet k 0
) l( q0 C+ j$ r4 w: Llet new1 03 A+ X7 C- u; G+ b! M
while [k < people]
- [2 S3 W3 Z R. q4 J' R/ M[ d; c- g9 {5 t0 s& u: [4 Z
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)
$ T8 a9 N! r l4 @2 v# Z aset k (k + 1)
3 m& u. [, b- l- Q8 G]
6 r6 H C% [+ K" X$ eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' ~. J) T2 M/ \8 A0 S+ ^8 X9 mset global-reputation-list (replace-item j global-reputation-list new)
; c6 o: o0 k5 U5 |; x, ]: |set j (j + 1)* e0 i' x3 `3 S
]+ |, T9 g7 N% A8 [+ C! R+ C3 B
end
2 u6 E0 Q) C9 S; w( U
7 E8 Q* X- I' o) Q
: ~# C) d6 o+ q: Q5 F5 e5 {3 P3 b1 [" _- [
to get-color8 F5 u' k' e% h/ @" Z, y2 v
9 B: p6 H5 S$ B& _# b5 B4 uset color blue1 Z7 J! A7 R6 b* i
end
# W# A7 n) g5 H$ d; U3 Q7 l1 y% B$ u: w3 r' G. B* K6 E
to poll-class
: o0 b! X p( R8 v: o4 kend+ w% P9 x: c U4 o6 g2 q
# b6 d. L m3 x9 vto setup-plot1
9 c- y; W$ M3 @* x5 M* t7 d( S( k* n7 F' z3 |3 Y; e+ `
set-current-plot "Trends-of-Local-reputation"* Y, V% q( c) ^& o" j2 j# ~
G9 ?% Q7 J- X" w" a! K. ]& ~set-plot-x-range 0 xmax
) Y1 i. T8 X, S: i" x
$ f8 ?) ], n2 T6 i# i9 eset-plot-y-range 0.0 ymax# P( S/ D [3 j& Z& Z' ]+ \
end
4 m' B! }3 n" ]. f
+ e. L5 I: W$ X' A9 [: Ato setup-plot2
& D, `! x5 X* M' l" i @0 \ J% f- d
set-current-plot "Trends-of-global-reputation"3 b4 F! I9 G8 C/ e9 d6 T! L: X7 D
3 [( e' P- k& Rset-plot-x-range 0 xmax
: b: H3 p$ u* I# p, a1 e2 G$ N- i) T* [5 I) K2 z7 E
set-plot-y-range 0.0 ymax+ K) j: l' Z4 q1 R& Q
end
. h4 {: t6 f% Y- N: z: ^( W1 R- g- @ C8 e* B7 j3 x$ Q6 ]
to setup-plot3
/ c, N. [9 C. G+ c! T* V$ z" s- Y
set-current-plot "Trends-of-credibility"
( W' l( N& l* L
, x, H4 c* n. H; `& Wset-plot-x-range 0 xmax- F, y% x w( E
! t' N* D2 m M2 o/ F# G4 Mset-plot-y-range 0.0 ymax
5 _) `: ~7 D3 F: D) y+ qend
! ?- ]5 Q. s( _' c; n' Q; F; q0 e+ I( M1 W/ }+ d6 d
to do-plots
' e% \8 p, j) X1 n5 y: X9 n" n+ sset-current-plot "Trends-of-Local-reputation"
8 x2 L9 F+ Y8 s6 [set-current-plot-pen "Honest service"
?' y- w1 ~7 @* Zend
3 n9 ]: {0 `% N( |2 Y3 R0 e/ `4 Z5 K7 S( u5 Z& ]
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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