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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
9 D. k z" _3 m1 [) b; C- pglobals[; A, b- t0 Q1 ]: h) v8 P0 P
xmax
, k( a$ ^2 ^4 q5 X+ l* eymax, U S Q% T; q! j# S$ ~
global-reputation-list. u5 v9 T7 L1 j6 `* G7 L
* C! v' K) k h5 S* j; @
;;每一个turtle的全局声誉都存在此LIST中2 r) D' P; b& R: F0 m7 ^* r
credibility-list
+ d, o& b9 X! |& O5 h7 ]: s7 b;;每一个turtle的评价可信度
0 R4 @- H, W1 d' K; n% M4 \+ Nhonest-service8 g/ Y' H1 p( Q4 J
unhonest-service8 |" Y- A6 P; X5 _4 ^( X
oscillation
3 e2 x. O& A' n, N2 I% frand-dynamic: S6 R+ H I7 I8 \! G
]& B5 J5 z1 O, \; f$ I! _
x# A( e! Q7 q0 J5 H6 i6 ~
turtles-own[
8 J+ V& \) t* s) f$ [trade-record-all
1 s+ H" l2 \8 P$ O6 }* G3 s;;a list of lists,由trade-record-one组成9 y- j0 C" u5 _) W! }( F: ]9 g
trade-record-one
; a- e0 v; ]2 l; W6 ?+ a;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ u; R$ Y! m6 Y v Z' o2 [
6 s% E1 d7 c7 e$ _1 d. |;;[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]]3 P( x' F3 q( p" o1 Z% p
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]+ {# A% X: ]8 j4 q& D) Z, ^
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
: n1 g t/ M& y! Q' L/ |neighbor-total
* G4 F7 h. x" l) u1 \;;记录该turtle的邻居节点的数目
8 Q7 T& B! U i4 S# Qtrade-time4 Q0 j" F$ h6 O/ O% c7 J9 w
;;当前发生交易的turtle的交易时间
2 s( E& X6 i& O, G5 A/ E6 _appraise-give. K7 L7 [* @* d, k N; O
;;当前发生交易时给出的评价
7 K$ J" M- j, L) _4 h sappraise-receive
7 X9 x" o! ?" }9 S( n, @' q) G;;当前发生交易时收到的评价
3 t7 ^$ B* ]. s: \8 {( _appraise-time
* b5 l- k8 ~. x* {/ j; I6 C;;当前发生交易时的评价时间3 o2 a# u3 q( H: G9 L" J0 y+ g
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, n3 K$ ^, R1 q e5 q
trade-times-total
8 Z; \( ~& [/ n5 |+ Q7 m; c;;与当前turtle的交易总次数' k& a2 T/ s6 C: g
trade-money-total
1 i+ G# v4 B+ h1 l, s;;与当前turtle的交易总金额& S2 w* n$ {2 W2 y3 j
local-reputation
/ Y; ^1 D5 p' fglobal-reputation
2 }; Q% s; G& M9 Ccredibility
" p# |6 i5 |: L;;评价可信度,每次交易后都需要更新2 X( D4 z1 m4 }: f$ K
credibility-all
; A/ k' N. |( |- J4 i) };;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% H. w" c h6 ~2 P
; r& [- w7 t9 Y
;;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& ?6 g, i, @; D. L4 q
credibility-one
. ~8 f l. J% A5 u7 Z;;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 c. V- f( _+ [6 {9 T l& Mglobal-proportion
6 q" k+ Q5 f! L2 L% Ecustomer
# s! T' j* L g7 T: R) scustomer-no0 Q" g2 I, W2 P- I+ W3 j
trust-ok7 o9 c5 e' x! Z. q1 f6 F3 e1 d
trade-record-one-len;;trade-record-one的长度
8 p. a+ z- l5 _7 A# p# j]! \8 Y4 r% O* t$ Q q' u9 [ t$ u4 a
' k: t2 K0 R& {# O4 r;;setup procedure1 f; r b5 |' K( D: z9 t: e
( y5 H/ {# r# f' K! k
to setup
5 F0 M ?. J+ Z* a' K
5 T& h l' @4 _% A3 a% nca
d9 M; q' p8 Z
' x7 u/ L* O- g5 U" u; iinitialize-settings
7 K% r" R3 v5 e/ {1 s
: q' d; ^& I, K+ t/ a# tcrt people [setup-turtles] p0 e5 U# C$ t, ~
7 `9 J0 v; p' ?; q5 ?9 L2 ereset-timer
9 C9 `/ l$ `2 v- g, X$ |0 z/ @' f# _, _' k1 g* l. t
poll-class
0 U+ e3 m$ y* k7 h6 s1 G( w) p9 B! o+ U$ G5 Z* A
setup-plots
1 Y" z" v, G8 A5 D2 W% q* u9 j, Z
! \7 g3 S* v L: r/ Mdo-plots& Y2 K6 U- U) O" k' Q7 h3 Y/ f
end
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5 d" ]: G% ^: G! a3 T% ]to initialize-settings7 } p+ o' q# k" v5 ]; P- i# S
, W& m/ e( B( t8 m# fset global-reputation-list []
P; A% \4 I7 Y6 l3 G6 z# l
7 b4 h2 |( k; a- g0 Yset credibility-list n-values people [0.5]
" N/ o- o+ O# |3 c# O
" }+ T3 g2 e7 Bset honest-service 0
a' X5 j+ R2 }1 Z
7 W+ @ W- i- N- M/ c6 Rset unhonest-service 0
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set oscillation 04 w2 o8 J, h+ A- l, F' @" h4 z
! |; }* Z4 l |
set rand-dynamic 0
) k- {) e& ~: U% e* kend
, ~. a! o9 p# ^0 C0 t" r, ^9 H, P& H- s7 K
to setup-turtles 1 T% x0 @0 s& \. W% S0 s& l6 V
set shape "person"
6 e* J' d4 }" ^3 b4 A" Fsetxy random-xcor random-ycor1 _2 R0 h2 {6 c+ Y7 P- y% y
set trade-record-one []
( p5 A% P0 e, Q
3 V7 O! r* b1 ?( }7 r/ iset trade-record-all n-values people [(list (? + 1) 0 0)]
Q, @1 T$ u$ A! t! _& d) [2 z6 t4 ~* H( b+ X
set trade-record-current []6 h9 b5 B6 o1 u9 V# B+ f
set credibility-receive []
0 Y$ Q6 K+ }2 v% V9 y: iset local-reputation 0.5
2 M1 i' Z4 R4 `' {8 z/ Hset neighbor-total 0
* h, F* s/ z1 a% v+ h4 S) Bset trade-times-total 0' s0 Z& p/ ]: r( N9 _1 ~3 ?( g
set trade-money-total 0
1 P J. r. s. H `set customer nobody& W a& S8 h# b% D& c. L+ Q% A
set credibility-all n-values people [creat-credibility]% x: g. `+ c( d- V9 V# [, l0 D' _! C2 I) v
set credibility n-values people [-1]( y) d. j- V8 m( F
get-color+ J% p9 s2 }, U/ V' I
$ I d) ]% k& c4 D7 X
end
2 @" ^ C ?: Y
1 n' H$ F2 _' p {to-report creat-credibility n, W# \1 f- H- c
report n-values people [0.5]/ h2 J7 e3 D& A4 q7 w
end
' V1 I) r- B3 o7 x- l+ P" ?9 R2 B2 [1 ^3 t( n7 y
to setup-plots1 Z, i7 [2 b7 j5 s9 i) O# E+ B
2 V$ P8 {' x, t+ f4 \ Jset xmax 30
6 p0 G& V* v6 t) v- P+ A+ p( `& B3 t: c' k2 A- J. |6 P
set ymax 1.0' L1 Z! x8 |# G$ d
7 v' x0 D8 q* O% O( E3 T5 c
clear-all-plots
$ B+ h( F- x: |' ~5 o" E% M
7 X. k$ T1 U& O& ~setup-plot1
0 p* i: e' s3 ]- l2 N! n/ }" z* X5 o6 z9 B. ^1 j
setup-plot2+ e' j, `8 c! x7 E" M% Q9 D2 H
7 n8 h/ |4 p/ E
setup-plot3
* {0 y, b% M2 a+ Q# Wend
3 [/ [6 F( I% @, U. y6 B; ?9 X$ _" c K9 u& K9 s9 [5 l
;;run time procedures
: ]. K/ e& u) q! x3 u* s; m" ~8 M& a0 S/ X5 C
to go# c1 _4 @. F! @- K
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ask turtles [do-business]
" \( P% s& y: u2 [( c& _# Cend
/ \! c; N+ p/ |& c* P" j, q
K/ m N: C8 D2 Z- {8 gto do-business + X# t# I* Z9 v& X+ D2 G$ U
. P$ b( d, Q( ~0 Y3 O U5 ] X# J
. L. m, c: i/ P" Y: e+ C+ C, Z; N) Hrt random 360
$ ^ l9 h2 \. h" l$ x) k' m3 ~2 N1 W; z5 c
fd 1
" L" E/ |' o4 B' h! G9 n* _, ~9 r, [) r8 V* I/ d g+ @3 g
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here- h1 {) {( I7 i1 H# k8 y6 X7 y
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;; set [customer] of customer myself
m. N( I5 d/ b0 F6 G9 Z
) A' {, ^$ Q( _set [trade-record-one] of self item (([who] of customer) - 1)* A, T; V, U* y7 K, N
[trade-record-all]of self
K; Q- O" [! P; u+ I, M;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( Q2 r0 w; ^ z* ^: t( n' N2 m! t6 }4 F! F
set [trade-record-one] of customer item (([who] of self) - 1)
8 a! A: ~" f2 w! A' \2 D, @[trade-record-all]of customer
9 l! m8 Y: N4 N6 U5 ^5 V& e. R+ {6 U" G. D" W% C: E$ {3 T
set [trade-record-one-len] of self length [trade-record-one] of self7 k! w$ t7 G) n2 N$ m
y' {* X' w/ K& `! Mset trade-record-current( list (timer) (random money-upper-limit)); L; v. K6 J u! Y! d
" p) P) i: z7 S6 {
ask self [do-trust]
' Q( n5 i' y6 C+ q ^/ b& E! w;;先求i对j的信任度. r& a4 p% Q7 \" l4 [
0 T2 \; \; V! @/ U. ^9 h1 u, w% s
if ([trust-ok] of self)% r& [5 F! [, E
;;根据i对j的信任度来决定是否与j进行交易[* {, b) ^' j3 |. S, a
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
" }/ X' U8 b1 r* D- ~8 x. {
- D; o& p* f3 ~/ J% q$ o[
2 S$ }6 X! B, }. g" H
5 I! |1 o* U9 j1 ]3 N$ rdo-trade: S, N- x2 E' h
' \; R6 p" g& h) W4 H% C
update-credibility-ijl
8 |/ n& _8 X7 H" I; [% _
: T5 K6 y" @* j) fupdate-credibility-list8 S4 v" v$ K# v
. B" `% b& K: E# F: W3 S
& ^3 W4 |1 G& W2 A6 b4 ~
update-global-reputation-list
: j$ A: ?- ^) b; z4 x; _" J- [* A" x) l8 S# g6 k
poll-class2 }- ?4 Y9 `" p# l
$ q# S1 l3 R- C6 B! y3 Bget-color
2 z9 B% Q. ]8 U( l$ F2 t, Q* v a% t+ F
]]
# V* S7 t6 f8 [+ D7 U0 ^& Z3 E; K8 r; Z( T1 E
;;如果所得的信任度满足条件,则进行交易
8 Q* ^: K$ d1 B ?8 E, @8 n4 S
& f, \6 @, ~( p# N& b[
5 s( q: N/ n4 I/ q7 _3 A
q' d; w. {2 ~5 d' B: Crt random 360
+ g0 d' B! w# `+ ?9 V! Y& n& [+ D: _; c# A& n
fd 1
) b, x! a* D5 d. b
5 n" O1 }* X/ G+ M1 E! L8 \]
( Y5 m0 j1 M4 i2 \7 M" e7 R! o( N* u# a, Z
end1 m3 G5 J6 @* l* {
2 J9 L* ^4 Q, y% p, y: A$ ~* Eto do-trust
5 H0 a7 t0 h- {' g/ Cset trust-ok False
2 V$ d% W6 y' c+ {; L, x0 u I3 y7 |& O; Y/ T$ K
( Q9 a: D. l2 I* Rlet max-trade-times 07 I4 C3 g* b( n/ H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. v( @0 b" [0 D( T) @# m" dlet max-trade-money 0
' M U7 L' S$ N' oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' G% c9 T) d2 B% D; [# f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! O% Q& P# Q5 Q5 y9 ]: Z! A- E, k- ?! b4 L0 a" l
) z0 g$ p+ L5 t7 o3 G+ ~( yget-global-proportion% z+ K% H+ A" [9 l
let trust-value) P' S2 v3 M* a& f$ M& b
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)
( ^/ U( X+ l9 H* r6 f4 p @2 Rif(trust-value > trade-trust-value)0 U+ l' ^. l! ~
[set trust-ok true]
9 Y; ~% c `! I" G3 P2 j6 w8 [end
* z* @ [4 g9 z: T- t0 N: E0 g( f+ U( K4 N
to get-global-proportion
8 `5 Q! B! Z g( P3 Oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
F' R1 i$ Z6 j7 x0 Z6 Z/ K; X[set global-proportion 0]
. c! i( [% M N% L( i- f, w[let i 0
" g5 Z; b1 F: u! `+ wlet sum-money 05 a7 o1 P |5 }# p( K) w! A) v
while[ i < people]
+ E& R8 _1 t' ]2 J: G[
- Z( ^; V W+ I6 L7 X: y% Cif( length (item i& O9 ^; h2 L% n- H9 G9 c
[trade-record-all] of customer) > 3 ), h0 w- a0 C1 ^8 T) w
[! E, a$ [4 |& B) r( w) {% Y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 a& L; D5 N" r1 E4 d]
9 s$ p& m+ @" b/ F]
* m' ]( _% N! H5 b' b% `let j 00 L% e! q$ _7 u2 J! Q! r
let note 0# R% B1 L% S' Q# i: R) ]6 a
while[ j < people]0 I* R% Y/ _. A9 Z
[2 y8 p$ U7 f) @4 @% B7 l
if( length (item i' v8 `$ p3 K7 U9 N; j. K- f
[trade-record-all] of customer) > 3 )
+ o, ?+ s1 a; s; \2 _4 y[/ H9 [) E; s7 _% u) k' ^( o
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# t8 ^- J; r* x9 Z4 Z) E1 [/ w* z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 v9 H$ p# w, B0 [; ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* K7 H( _' o0 @$ R8 L l
]/ j+ x' A- K; Z1 b0 n' u1 D0 X
]
8 S( G: V+ z x- G0 F) @$ Eset global-proportion note1 g9 M6 F- t& b: W
]
# a, _+ R1 f2 M! a2 `end
G7 a# p% q9 ?- b
& Y* @! {! S4 O! ito do-trade0 s; { }* _2 Y" I0 {1 _; a# v: O
;;这个过程实际上是给双方作出评价的过程& R$ ~5 K7 J5 b9 ^2 O% ^' \$ w! i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ C3 d( s+ k, `7 X3 }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价6 f% w6 r$ s: v% Y" S8 g# H, O
set trade-record-current lput(timer) trade-record-current9 t4 N) }" C7 b# S8 }$ t6 V
;;评价时间* `9 k. o& W4 Q
ask myself [
9 t, D3 g9 K+ @update-local-reputation- {3 K4 S, p& s9 r% o# {4 Y$ Y
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 v1 {. _6 G# x]
7 S ` B/ O2 \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 q8 Q) Z% F- b
;;将此次交易的记录加入到trade-record-one中
+ J- a# @ l. d( X4 R3 p( nset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ s5 F v. n- { ]5 e; J+ Rlet note (item 2 trade-record-current )
* h4 _0 ?# W) h/ r; l8 W0 r4 r7 Yset trade-record-current) `" h9 p0 z% w) i8 y( M# y
(replace-item 2 trade-record-current (item 3 trade-record-current))4 z) i6 j& E' o, P- p
set trade-record-current
# n) ~5 _8 F6 E O# f. G- N(replace-item 3 trade-record-current note)
( @2 y- q3 U( u" D4 H
8 d: I3 R/ Z) V L$ f, v* u# `% @' _3 Y
ask customer [: v) B/ W& @& W
update-local-reputation
! ?' Y% a$ l. X5 ~; lset trade-record-current
$ E+ s' a$ U. [5 g1 _(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) , _' t; p H# L
]. c2 a/ ^/ @6 z5 p: ~" r. W
1 h2 F3 K! H( j! v0 l% r. ~, H
: m$ z1 k! \: fset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ a1 x" u$ ~# Z" o/ @% I* x4 v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
5 E! D% H4 G* p$ O* k& R;;将此次交易的记录加入到customer的trade-record-all中
! j, h4 r. l; C% i& V; l2 D0 ~end6 c! ]8 d/ J$ T i. Q
3 K& L8 o* ]! s8 Nto update-local-reputation
e8 q% J& A3 s/ `2 s3 h" g$ o/ ]0 }! Aset [trade-record-one-len] of myself length [trade-record-one] of myself
; D$ b" r1 A2 z+ |8 g: d& g7 r
; p s" T/ C( I6 I/ ?! t+ J0 k4 J; @: B& P
;;if [trade-record-one-len] of myself > 3 * x" @8 p* E9 u3 e/ z
update-neighbor-total
; J9 p% p* {1 k4 r$ s- k;;更新邻居节点的数目,在此进行
9 n3 N% J- T% j p) qlet i 33 U# x5 x- |& A# e% f. F! Q2 h
let sum-time 0 N+ e" b3 E+ u
while[i < [trade-record-one-len] of myself]
6 a+ C! `4 T, M' Q[
4 H/ I% D/ }# u9 qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
3 p) d5 M2 }* U3 P+ I4 sset i
- q- p+ s# Q; X* O( i + 1)0 g8 t! h0 F& D9 G
]+ ?) Z. E" l# B- B0 x: v
let j 39 v, U- C2 O) J2 B6 D- t5 ?
let sum-money 0
; D9 g d" o' Y. b0 Rwhile[j < [trade-record-one-len] of myself]( _% E! L+ h6 F! x) v
[% w) A7 @8 J- [$ n
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); L. G) H0 k |
set j* R8 }' ]6 h2 k4 L* h* P/ z
( j + 1)
. Z0 C! }2 o6 B, c]! m! w5 H/ @) m/ C, [* p
let k 3
8 X0 I7 f5 f- G {" y3 z/ O: L: flet power 05 ^, z' r! c( |. l* N& f5 t$ m
let local 0/ f) T x8 S( i, Y
while [k <[trade-record-one-len] of myself]
/ S) o Y/ Z3 ^" ~[8 w h) @% m2 b5 D6 e) g
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) 8 Q+ E# Z- X ~6 [
set k (k + 1)
' `/ n, n0 H2 r( n3 ^3 w], d4 L" m$ U( u0 L! d4 A% f
set [local-reputation] of myself (local)
# [2 c: Z+ f" E2 x7 o# D3 i# Gend! }4 H( ~" }+ e5 o6 ] G
" @8 G9 [$ Z$ Ato update-neighbor-total1 o( m0 g9 P$ Z4 @/ u
% C3 r5 j7 @- h! r" N8 e! }, g
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; e# R3 V- v! H- g
& a Z$ S/ l6 ~: r' W: X, ~7 v. O
0 N' t/ C" X5 {3 z: {, xend7 T, h" Y6 P& L. m4 J
! @' }, \% m; U+ h: I7 {; A, Qto update-credibility-ijl
5 X. d, L& U. K% T( r$ m
7 {2 N$ H3 R- t% `) y4 K;;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。6 x6 n6 L$ T8 T% t; }7 r" {+ M. n
let l 0# {# S& ^2 P$ f$ }9 ?
while[ l < people ]
% j6 C: k/ A, J$ g ^2 F* c;;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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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% P, Z! _, F& \( a; f5 C1 o- Nif (trade-record-one-j-l-len > 3)
- E: T. c0 p, H4 |1 ~1 [6 ~[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-one6 {, X7 ?9 n' `2 V
let i 3
! z4 X2 e' r/ M# blet sum-time 0( h4 m$ N3 z/ e3 B& i0 k
while[i < trade-record-one-len]0 P: h7 n. F I
[ ^; h6 ^" B: H/ c+ k
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 r0 ^5 p6 t4 i
set i
8 R4 M; K% {" f) F1 C: K4 s( i + 1)& N0 a0 ]0 P6 t4 i# [
]
. b6 Z0 J* p. c8 f9 d6 I6 o+ Mlet credibility-i-j-l 0
) V1 {$ O+ K- B- c8 l( g* I) S, w0 @;;i评价(j对jl的评价)
! W: j# B% T/ q e1 q: q% R0 Klet j 3
# h" G0 N4 x5 o: t8 Ilet k 46 ^0 j& b7 f2 _/ B3 P( u( I y
while[j < trade-record-one-len]% ?2 [6 e+ G8 V4 z8 m4 X; W
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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7 N ` ~/ f! D) D2 h0 B# ~
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)0 V" H. [" H/ H2 X0 d# z: |
set j
% {8 z& Y6 E4 |( j + 1)
5 A8 Y" U9 J1 T% {$ Y& T: }]- @+ H" ^& R: e
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 ))/ R, e; H* w& _/ v) E
4 A) Z6 G+ J; Q) n3 w
' z* {( l D2 y, Q& i. O: vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 O; r; [! q! i# y;;及时更新i对l的评价质量的评价
; l- w7 S% L4 O$ A) D% \set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ c- g5 _3 r5 j3 v9 R( o
set l (l + 1): }8 C5 k' X% q: T% ]
]+ M" w& X: @+ ^3 D' I9 i' }' x# d* u
end
( g6 D L: I: U7 u+ g
/ \5 S. `3 _; |+ V2 Dto update-credibility-list
1 o& O! |; f7 V4 ?& k- Flet i 0
5 S/ u( W( P5 i! fwhile[i < people]
& F# d0 u3 q( Y& X5 h5 O$ Z( f* Z; p[& v( r; m! k1 A4 t5 D7 q
let j 05 \" _% M0 Q$ r! h& h( u* k: `
let note 0' g3 Y7 u3 z" _6 h/ R2 G! m
let k 07 P% W2 J8 R7 O) y$ x
;;计作出过评价的邻居节点的数目" u1 t, a1 s2 d4 H9 P
while[j < people]
7 Q B: r8 E( J" u0 y4 v% [% o[
4 F9 W: q3 {1 ]0 G' B3 lif (item j( [credibility] of turtle (i + 1)) != -1)( w9 r2 M3 m' i& L
;;判断是否给本turtle的评价质量做出过评价的节点* o7 I4 V) {1 m, b! a3 ?
[set note (note + item j ([credibility]of turtle (i + 1)))
8 Y+ v5 M# T* N* `;;*(exp (-(people - 2)))/(people - 2))]
/ ], y& H, m: lset k (k + 1)7 j! L8 v8 R: F! G5 \% u9 U" j, I
]. Z* R% D2 h. U3 o2 K3 E
set j (j + 1)/ D1 L0 L3 f2 }) \
]
$ U. V G$ w8 Gset note (note *(exp (- (1 / k)))/ k). j& b/ \* `6 @# R# H
set credibility-list (replace-item i credibility-list note)$ T/ C/ o/ c7 _: F9 [! w" e7 _( F
set i (i + 1)% ]4 x+ U! C3 o9 b- \2 L& R
]
* u3 ]) F- x# m5 n7 Iend& e, _( j, g' x
5 v/ I+ x$ e; D0 [/ }6 L" _
to update-global-reputation-list
) D& s5 x$ Q/ Olet j 02 b4 Z8 U) P2 o$ j6 I
while[j < people]
) ?* E9 k, \5 Q _% Q5 N% D[2 k4 C: |) L) A: A/ I
let new 0: v' D* H( P" i4 }- V! T2 g
;;暂存新的一个全局声誉8 E8 T( |" l8 T0 a; [
let i 0- Z- r/ @' @& s
let sum-money 0
- m1 z. @4 }: P- q, Jlet credibility-money 0 F- f& F) i* ?$ K! w
while [i < people]& B; U `) K+ d: R( g
[5 \ J3 \5 {1 _9 J! Y+ o: ~1 M
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' N! }5 s2 _6 h% nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 x3 V% L# [" t& nset i (i + 1)
, H* a2 z: s# H$ y. Q# r5 T]
% ]2 b, i- T, \# l; u/ ~4 r" Rlet k 0( u) w; M! W0 d6 L/ G
let new1 0
/ t, P7 w) [" }/ |* L9 Y+ [3 H5 Jwhile [k < people]* a* f% I0 g) ]5 l8 g
[
4 B% y4 M' Z9 G; V! Y* 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)
$ e" `9 h; m q# P3 j' Dset k (k + 1)
% y0 o6 d$ B3 q0 Y( g]2 P& W* o8 g+ L+ R3 k( `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( `* k7 q$ f: u6 `: M$ R/ Vset global-reputation-list (replace-item j global-reputation-list new)& W8 z/ J" l {/ ]' T, h; ?2 P
set j (j + 1)
- f' }/ [ i& Z0 O3 K+ Z4 a) h- Z]
- s% e8 ], ^4 I+ `. L9 g3 Fend
3 g$ X1 ~+ n! C+ Q5 i" s' T+ a* _
; Y1 F- f' d5 M8 |( |7 ^ `- X: D; v* o' C7 ]
to get-color- s# o- k- [6 @7 O o
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set color blue) m0 z0 r; f: H0 j& R5 Z- ~
end
f5 }4 k% ~; ~" G" l* `4 D: y( p- J
to poll-class
% z9 K, _- D9 kend
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9 I. q) D5 P/ y# b" K' f$ B* r; Nto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
" H e' K+ [. f; d( _4 H5 o
1 X" o7 k k( t2 _* Zset-plot-x-range 0 xmax
0 z& D! N& v; k& S; m$ d& _# y$ J& c% l
set-plot-y-range 0.0 ymax
8 O+ v5 r. x& D, yend- V/ y4 Q% s# F s* s1 y
& A8 E7 y* L! r# W& C3 m7 Uto setup-plot2
, ~7 T" A% z8 d0 O
0 U8 K# j) \' `6 v+ I( Uset-current-plot "Trends-of-global-reputation"
' E, ?# \/ b7 U9 _( w6 o8 h$ M4 ~' Z$ F2 S' s
set-plot-x-range 0 xmax
# d M S2 r6 L' `" D% S# }
, l' ~( r @2 T5 u9 M$ \0 Hset-plot-y-range 0.0 ymax" g3 c. q$ ?' c2 L, Q1 N( b
end
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to setup-plot3
4 x2 ?, ]5 ]1 ]0 d5 I) M) h
& U$ q7 S9 b7 F. w% Lset-current-plot "Trends-of-credibility" i: l- o4 R% _! ~! I, j" U
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set-plot-x-range 0 xmax
- j9 i+ ^( }: @! `3 }
) n' H, q, l3 R. L# aset-plot-y-range 0.0 ymax
4 b3 O F% h* W6 ]+ C1 Mend. i8 p/ k3 j5 l3 v
! Q, u; H: d! N6 hto do-plots
8 @) c* S3 J0 V1 y! c4 Eset-current-plot "Trends-of-Local-reputation"
( u1 ~# H# h! sset-current-plot-pen "Honest service"
6 b1 Y" `0 f6 {( X, f6 I3 N* B$ dend0 K ^3 W( ?9 ^! [/ f
" H: J4 j0 e$ p" _+ w9 i! \6 j
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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