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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 w& A7 L: d4 J! Q1 ], v! e7 S ~ Zglobals[6 j" @& w* d; T( ?" v% E, j6 V
xmax% ~" C- p7 R O4 b! d7 y7 z' \
ymax
+ `) D7 [$ q% f8 [* pglobal-reputation-list3 k9 C1 L: @# C- V3 j% @& T
k' g# Z+ s8 o' f& t9 E;;每一个turtle的全局声誉都存在此LIST中
* Y- ?# }6 w6 q- P$ C0 X# `credibility-list
B, } N# I2 W! l( y( X! R8 [;;每一个turtle的评价可信度
4 z" E1 u, }5 \6 E f6 E6 xhonest-service
& ?8 Y- H% l; v; L7 n- D" Kunhonest-service' w8 O+ N/ |( \
oscillation
( Q- }) D+ j7 zrand-dynamic6 w& r% H H2 f5 m
]2 H$ h* a- |9 s! u. H
) u7 L7 g. P* N/ b( B* pturtles-own[2 I; p9 b. T9 `
trade-record-all
' d8 H4 E( _# X* A1 V/ c$ _;;a list of lists,由trade-record-one组成
( x' B2 z( J& L. l |trade-record-one. c! d+ V4 w8 {! S
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 S# f5 Y( ^! z, }1 | {
7 x1 c4 T( t+ K- f- m 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]]
) O- _8 K( S* i( 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]
; H" P0 R* O1 y+ qcredibility-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! k; s7 o" Y4 E7 d# H/ V! A
neighbor-total, C. g' J/ O( ?) V# R% X' q- p
;;记录该turtle的邻居节点的数目
0 [9 j" z' G5 n) h, Ntrade-time
( _& q. {6 P) w6 ?7 h! {# h) u2 |;;当前发生交易的turtle的交易时间: M* {7 j8 s" O7 T* n# e
appraise-give
# m$ u7 P. K/ H;;当前发生交易时给出的评价2 K3 T2 @. x; `( g4 V
appraise-receive9 h* O$ C J3 y0 h6 i
;;当前发生交易时收到的评价+ d: Y- k+ ~6 }: H
appraise-time
1 B; w7 d. U3 s4 |# G! _3 J;;当前发生交易时的评价时间
- R; g3 B+ Q' I Tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ b- d: j- O9 ^trade-times-total
8 d5 x! c0 Z) ^;;与当前turtle的交易总次数+ u, R8 R8 @0 C1 C9 H# J
trade-money-total
$ P2 S4 `/ r: N, M q7 P;;与当前turtle的交易总金额
: |! N' x5 {$ m4 ^; f5 F3 dlocal-reputation. R ]! M, u7 H/ F- g) v
global-reputation4 W6 D, S; w0 Z" Q o3 A# m
credibility! l, d! s: F- i" t6 m4 I2 k7 u
;;评价可信度,每次交易后都需要更新
. `+ ~1 w9 _4 W% j# Scredibility-all
' C1 G1 h* [1 v8 A7 I2 `4 N! o: 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
2 i, ?+ o7 l5 J5 i, T3 D; ? k/ d% p" o" t
;;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* W. s. n% D2 V3 ^* ?/ w% S
credibility-one+ O; S* k) i6 _
;;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 X9 _7 `* q i( o
global-proportion
7 Q1 Z: A& g; P' f% d1 qcustomer
3 F' {9 F$ a" I* L& t9 i$ ecustomer-no% C& o: m8 t6 U; E' g8 C, B+ V
trust-ok3 [2 t9 Z0 p, R
trade-record-one-len;;trade-record-one的长度8 l. s& [8 X k- G) H. W, {
]& H& J' K- ?( M. {# L) \
+ a0 N& ]! H( r9 E! M) `& Y;;setup procedure
) t: ?8 ]8 ~% `5 C' \" h4 J' @% p6 E2 F7 o; Y& F) c: a! y* t
to setup
2 r+ G; X! D3 D/ x# k! x' w7 K. R3 J4 h& M8 R6 a' K
ca
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initialize-settings
9 U+ O# s, O ^6 O" l7 q' t5 W% C6 f) L* n
crt people [setup-turtles]! a, u7 F8 F" ]
% v# [2 W4 r- y, E, \- O. Vreset-timer
$ P- n; O& u/ Y/ V8 Q& P$ m$ Z* X( @) x8 u! W/ Y; N& K6 ^+ N0 o
poll-class c0 A& }" W( ~. M( n8 ^
5 l; {/ L$ c9 \. Osetup-plots. e G% k7 t. }) Q" {
5 }. h$ [! W. O: d9 Vdo-plots( A7 Y3 h. w$ R2 | E
end; ^% z+ s2 W) {5 F
" `. S& R1 J) f+ Xto initialize-settings. p' p7 B9 u' y' ]4 N2 w
; z9 z8 T% r3 I7 z3 bset global-reputation-list []
3 t- d e6 K: u# G' ]% b1 q) U6 ]& R5 v. B
set credibility-list n-values people [0.5]; A, V; J p2 F2 p2 e1 |
1 R+ w5 `( ?# T2 |" I. W0 Mset honest-service 0. x1 \8 `8 _& I4 n2 U) H2 F0 B
! [# G2 z2 p8 Z% g# H9 z
set unhonest-service 0
1 _ h' U/ Z% J% h! Q& N2 ~+ t0 F; G3 G G- W; Q' z8 Z
set oscillation 0
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set rand-dynamic 0
* y' l* e2 ?6 X$ M& u- A* gend
$ H* f4 X7 _0 u, W4 x1 C. q1 A) N+ y- L; `- Y
to setup-turtles
8 s3 d6 k# y e" t; P' |set shape "person"
% l0 N% e' h. x3 ^% Z; l. U6 hsetxy random-xcor random-ycor C0 D% z& C$ K9 P ~$ Z
set trade-record-one []1 u2 U& \, z- e
+ m0 u1 Z( ]3 [
set trade-record-all n-values people [(list (? + 1) 0 0)]
0 h- }( V) R D9 a. S2 {
7 X8 V! c, D$ j2 V- K3 T9 M& pset trade-record-current []5 i: y2 C. b" K1 c% [- v) G
set credibility-receive []
" v/ i/ o& o: hset local-reputation 0.5
v8 ^3 w( \% ?4 p8 Aset neighbor-total 0
; |1 i. a0 D5 i3 d; }5 V: Dset trade-times-total 0
`, d1 Z. g5 \9 Gset trade-money-total 0
2 y- G. R* [; h9 d; }set customer nobody
5 u+ v2 p- O3 I5 w3 j, O6 h0 Qset credibility-all n-values people [creat-credibility]
( f0 Q# V, d. P. {! {. ^set credibility n-values people [-1]% b0 i6 ]+ C2 q$ D8 r" Z1 Z
get-color
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end: x, j5 b6 ~! @/ m
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to-report creat-credibility
( t/ g; k3 c) f) T& p; wreport n-values people [0.5]# }9 {" _0 G; e
end4 f+ y9 k, A& h% X: R
0 J. u- d2 C4 g0 R' K' m% o) F
to setup-plots. Y$ Q( a: v- H) q' O
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set xmax 30
. p( G" X4 F, W+ l3 l- B0 Y3 R$ M$ n# u0 D+ Z: I
set ymax 1.0" w# O- y6 ~3 I. v e& l, \& |
. D0 T2 F4 d- Z D6 kclear-all-plots) D( i) Q! D1 M; h9 U
7 P/ F( {$ y8 W& n$ n! v* zsetup-plot1
% _ r: V" F$ p0 y
7 R0 m0 F4 B" T& A0 O; msetup-plot2
" S; U) j- u; w+ J' F7 O- S( l3 ~- p& S) _) w
setup-plot3; f R' a7 d- G: R
end
1 T- I0 R) a$ J s* Q9 |4 [" x
' o; C! Y) J" v1 b+ |/ Y' `; u;;run time procedures
/ O9 X0 R5 y$ h$ g/ Q
9 p- w; f2 t9 @# H9 B3 I8 R& Qto go. X& ?+ U; U* m
% t# @ d0 Z) U Q# q+ F3 x
ask turtles [do-business]4 p( m: `" L- m# @ Z
end
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to do-business " U; M7 ]6 G2 o! s) x, ]- b2 t
- F) ?$ y) }6 R9 }5 D
& _" }- F/ x n
rt random 360
% |3 D9 w! m/ [4 W/ [2 ^" c& k* \* f7 p2 B! `$ I$ s
fd 1
: W* ]/ Z' ~9 D: r% y. {6 e4 A5 c- i; _% Y' `/ I, |
ifelse(other turtles-here != nobody)[
* e: {$ f1 f# a4 h# i* k- h" [4 i) V4 w J
set customer one-of other turtles-here# f, q0 j- }# n
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;; set [customer] of customer myself, l( _' v# \% b
. R9 g6 A( Z# U+ Rset [trade-record-one] of self item (([who] of customer) - 1)
+ Q- v# B) ]" `& N/ V% Y. p[trade-record-all]of self1 Y3 J% {( k% x' j; |" H
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& B3 L E: T$ t' ?
5 u# L: g( Q" c' Uset [trade-record-one] of customer item (([who] of self) - 1)
{) G4 u: M' n% ?# R( W[trade-record-all]of customer& x5 A* [8 L x% L* A
' ^; w* J e0 b# ?" a+ b) b
set [trade-record-one-len] of self length [trade-record-one] of self
4 A: N6 q9 l3 z( p) [5 N' r$ U& J$ C& `" Q8 l* J% F/ S# Q3 ]
set trade-record-current( list (timer) (random money-upper-limit))3 M+ h+ A+ U( F1 R* f5 m0 m% r6 v1 I
, k) A1 _6 \1 ^: F7 b: g3 e8 Xask self [do-trust]
9 I# a8 h. D: M/ A) W- b- `;;先求i对j的信任度+ r: F( h2 G9 s8 A8 V, U
) ]# i8 n' v& Rif ([trust-ok] of self). y- r4 H1 F. B* C& P' f
;;根据i对j的信任度来决定是否与j进行交易[
' a8 M$ J& L' p% f, @' ~* h& ^ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 r& v$ S p# _4 S" @9 J9 O/ ]
4 _# |9 H9 c" x: D9 ?[
' G/ f' L) W% P; W4 V
2 b8 n$ R6 e/ ido-trade
' E- u2 `1 U x1 T4 ?# k9 G# z n1 p* b
* {! n1 `; w8 _- \' P0 `update-credibility-ijl
3 } f! f: l' f, Y/ p( } ~; M; T2 J7 z
update-credibility-list7 q9 M3 }& M- `6 t
9 T' e# R0 ]0 l; C. q& i9 \- `; z6 w2 ~) i+ g
update-global-reputation-list1 g9 k' R. W& e
2 W K% ~! c$ c% j$ ]- {8 ?( Spoll-class
4 n; x& S( ?* m% U* d4 m9 Y8 r4 y! F M9 O
get-color
( l [ i( H9 N$ x4 t! ~! q8 T; ]) r" t6 B; r, _. f
]]+ j% a; b+ x1 Z" I+ x5 f9 C& V5 V
! n/ F$ ]$ s$ l1 }; `# M;;如果所得的信任度满足条件,则进行交易
' u8 B% j. w# n, ]- ?6 X& S) S, ^- t' V! n: S. W# C8 \/ G
[
- g$ H- c U3 G$ J& q! t
- Y' V) k/ S+ e7 x! Urt random 360
0 O& i' e1 H* U1 y1 m7 H" D
* d* s4 x& j! X# z) bfd 1
4 i8 _& [7 f( e% V: `. L
! W0 G$ O4 O5 _! ]6 V]8 \: g' }5 ?! }; P! E
. c, _6 e9 @6 ~end
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6 |( E b' V7 V0 o: a+ Eto do-trust
7 K$ f% z6 ?5 z+ {- T. i+ iset trust-ok False
$ h" N# y8 I7 C6 F d) A
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) o$ U% S! Y+ p8 blet max-trade-times 0
' b; R. M- s# X+ h j$ q( tforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 M) F5 h, C9 U3 g5 T/ elet max-trade-money 0
& K/ H+ s9 R: jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 [6 j0 c! t' a9 Y! s9 G* Rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). O0 L, q" d1 ]8 `0 J7 Q) ?! X, s$ W
8 m i' m" S+ e/ \- Z
9 F8 W# C# T5 P- M' S0 }get-global-proportion
$ g$ }. |9 f- t* u5 C* Xlet trust-value1 s' G( D$ x; u' M! Q+ V" b% p% a+ |
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)/ T! i; F& j; c! z
if(trust-value > trade-trust-value)
$ y! |* [8 ~" d% h. T3 u4 U[set trust-ok true]1 }* C, O: a! k
end
f4 \2 s8 l; N8 ^- o7 u/ m9 I9 K$ `
to get-global-proportion
9 X( w" K! R( ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& d) P- e" `' Q$ O- G+ v[set global-proportion 0]& i: i- U. z( v* U
[let i 0* h7 a. E; P0 c! Q* d
let sum-money 0; G' x; O" K, U
while[ i < people]6 |: x$ r; E& ^4 V' Z) a6 B/ I
[+ j6 k& C' }6 h. ?5 ?) v- m
if( length (item i
$ a5 q3 Z1 Y7 B" i! e) w% H[trade-record-all] of customer) > 3 )
: ?% O3 K% j/ }* v; d) }[
+ {5 D! k+ Y5 L& j% p* Rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 _, U8 g5 f& i. ?8 \# ?, J
]
! p8 _6 A, W: t* \: J# v" j]8 S" M8 U- h0 s4 a7 ?5 m5 a
let j 0
# E% s- H/ ], b" _1 y0 clet note 0
: @ f" B. u5 ?) \0 H# b- {! rwhile[ j < people]
6 h4 B9 a8 I& R7 s) B' }$ f[( }2 R! R8 _" r, o R
if( length (item i
# n: y% P' C$ ^2 p[trade-record-all] of customer) > 3 )
. p/ Y& { K/ W4 F* ?. f6 D- I+ w/ K/ g' M[; H& D% E2 T; q$ p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 w0 L* N; Z9 @( T- V, u
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 c- N' Q" H7 ?3 ^* @' @. Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 s; ~0 {: X9 h+ ^7 v- d/ m. ?
]2 N7 }' s4 w, k+ f' `7 _
]
' G6 m* {( N: d; @+ O, cset global-proportion note$ c6 \* f- Y4 ^! e
]
, |# {# w7 d0 C0 Zend
( {# {! B" `9 W2 Z( B( P) z& n* {( L) \
to do-trade% \1 C- _ |9 y) J4 ]
;;这个过程实际上是给双方作出评价的过程
7 R- J5 ^( |- L' N, j, nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 h" [1 A, q) }; ~7 J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( @* k$ k2 v- ]3 [, \
set trade-record-current lput(timer) trade-record-current. A& r; z/ d _* n' Q$ T
;;评价时间
7 M$ ?7 F; L' L; S" Q4 u2 f+ Gask myself [
# F+ C6 y0 P2 F3 iupdate-local-reputation
: l- T" k0 [- D, X5 s9 C( r' a0 Y6 bset trade-record-current lput([local-reputation] of myself) trade-record-current/ E* q0 I" f d6 d" t' D& W( Q5 F
] f K: ^3 O- d1 ]
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: I0 C* ~/ N8 P( R: I/ [* `$ h2 x
;;将此次交易的记录加入到trade-record-one中
( ?* B5 V8 ~' _9 |set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! \; k* Y' `7 l' o3 C8 @let note (item 2 trade-record-current )' P: t$ e- S" p6 G9 ^
set trade-record-current
2 y0 I$ K8 h+ J$ ^6 z(replace-item 2 trade-record-current (item 3 trade-record-current))
( K+ P% U( F3 f8 E6 kset trade-record-current# W- U. V% C7 |$ x. t
(replace-item 3 trade-record-current note)
; U: O4 L6 R; q: y
, T, U4 i1 ^9 K$ v0 [' n
V0 c6 G5 }* M( t4 \% zask customer [7 i0 C0 A- N2 y
update-local-reputation
: I& i; N' v# B# Zset trade-record-current
( Z+ p( b" k' o" n(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " Q1 \% `+ P$ K/ E+ c4 I
]: t7 H; R2 p* u9 S' M
( K. K2 k0 U, e8 |) g: l
K0 v6 w4 c- I, \0 G. N7 zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 t4 D- H+ {" S' h
- M! t% H2 J/ [. v: p/ ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* D& S8 z, @" U;;将此次交易的记录加入到customer的trade-record-all中
9 {+ e7 D0 _2 I8 {) \+ V+ `, Cend- H0 E. T$ F( h5 Z( h2 u
, F, R! t' _4 P9 ?( D7 ?4 Vto update-local-reputation) a' S1 j+ f* {7 @ T1 w, z( p' b
set [trade-record-one-len] of myself length [trade-record-one] of myself3 X# O# g6 o2 R, ]
; ^, Q% l' Z. C$ B; h1 f9 ~' @! S. C
;;if [trade-record-one-len] of myself > 3
. T0 b" t- d0 z$ n- @* e$ ?$ Zupdate-neighbor-total
2 D0 [: c) c3 ^ q5 Q% O;;更新邻居节点的数目,在此进行1 Y, O; |6 c% O. {$ C$ b
let i 3
- t. W5 N7 }/ }' h- _& [# tlet sum-time 0
8 U( S( e: V% y# z/ m! Dwhile[i < [trade-record-one-len] of myself]9 E+ j7 M& ~9 f) x8 z& M4 N3 d
[
1 c: S r" O* W5 Oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 L/ L# F: r0 \2 K$ X W2 Sset i
1 N2 V" ^0 ^, W6 H, G( T6 p8 O' U+ E0 f( i + 1)6 ]3 T! h* Y& o% T7 g
]. H) U' c; q7 }( ~% Y3 }& \! G
let j 3
) p/ y8 l1 Y* O; ]' tlet sum-money 0: i' z$ I: U: U0 X5 s) Y5 u
while[j < [trade-record-one-len] of myself]
9 ^" Z, [ y, e+ ^2 ^[
0 ?' _1 ~ T$ G( |: a( Qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)+ r o% ^/ M8 ]9 y- }/ M
set j- x$ i. f9 h+ l( g+ J
( j + 1)
# w7 ~) [" ~) X) R]
) W: U$ V% t2 |# l4 c+ r1 ?let k 3( \) t5 a( C( \$ g
let power 0/ V* F( `1 m+ ^# q
let local 0+ [# v) i- L' V% l3 G
while [k <[trade-record-one-len] of myself]" W( J0 \+ D# l2 X& U; g
[" M) T; t* ?, x$ N* \# T( i4 \
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) & b+ @# c0 E u3 d
set k (k + 1)
5 O! ?0 G, h$ q' i& Y]& f! a0 [1 ?$ o; m1 y
set [local-reputation] of myself (local)
' K& E1 W1 a% }; Nend5 |! f+ Y2 O" Q5 v* Q# @
) e1 z, C0 D0 K! h4 v1 i0 zto update-neighbor-total
* a/ X9 ]7 [/ g9 j4 v5 U9 U" C6 a
1 |( o/ }( l7 Gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 y' K' J: ?9 N1 a! m. f: E
# J& X/ }' j* |
9 H0 F$ O# _2 l; E6 Y+ Xend
) ?* E( Y6 W$ T; d0 {
8 V5 j* m7 M( D+ z7 t6 x2 M- Y/ Nto update-credibility-ijl
. [+ X" T! G5 [4 t0 C8 L
, E* b; L7 a0 @& j/ P! L7 F0 X;;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。5 i1 w X- Q( p4 d$ ], Y
let l 03 P6 D) u3 z& j' k) t
while[ l < people ]4 R8 ?1 X0 ]( W+ Q& t j
;;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)/ ~! ^7 A1 p) ^$ K% M1 b' `
if (trade-record-one-j-l-len > 3): V. b; M% u; Z! |/ U7 D
[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
! b" S& c+ x5 x, f( ]$ Q5 d" E5 elet i 3
# c: S# d0 p. @' {let sum-time 0
) J* O; ^( k9 ]6 d. x$ \% @while[i < trade-record-one-len]$ `; x: _: w8 n1 w$ [
[
& V! }+ i4 }/ v$ aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 R/ n' H5 V1 i& s2 xset i
2 @3 T) U. D5 R5 \( a' n( i + 1)1 |# k/ }! _" C; Q
]5 h5 z6 L1 D. u- Y x+ f; ` r( b
let credibility-i-j-l 0& e' d' Z" L) B5 `
;;i评价(j对jl的评价)
- h; R" O/ j" q1 R( rlet j 3# x1 c0 I- g7 r- U1 f7 O
let k 48 n X% U2 A B' U
while[j < trade-record-one-len]8 B& p( w! G) ]8 _' M
[
( a) e6 X7 X* A% g% P5 Gwhile [((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
, k* g1 y, U) r4 }! P1 wset 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)
, r7 X2 ?2 N+ H8 t7 ~9 d1 P# Tset j6 c( C! C6 _+ T$ k- q
( j + 1)2 X, K& l, X6 q @# o. o
]
( d& v' k" e$ N/ U( x" |. nset [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 ))
c4 y/ h4 b; c, [/ N9 W$ K% m1 S9 L0 \# w: C6 O- f" U- X
2 I+ ?3 b8 ^1 M% w$ C) e: T/ |let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 O; V; m5 ]+ i: s' y! O
;;及时更新i对l的评价质量的评价
" V# m+ o! Z3 ^ t8 A4 o+ d0 b; r9 Kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! E7 c8 H% A7 x0 j# |
set l (l + 1)5 F! l* o# \, B# c, |0 Y
]
8 ?/ Y7 ?) D( p/ o$ a; Fend0 Q. F8 Z) d [: \$ r! n) Q7 D
2 S" U9 ~5 \$ h. j4 E
to update-credibility-list- S H) n. N2 T: b& }5 `- n
let i 0
/ |; d! L& @2 D0 Y$ J6 \while[i < people]! |7 D: N; `% X, c% r4 `
[
; _% U1 w: N- H1 p r( `let j 0
3 U% D' b. _5 Xlet note 0
7 \: K" |! u. K3 Q7 olet k 0 Y( t" Z: X' j- Z, N2 I
;;计作出过评价的邻居节点的数目
3 _, D$ r8 ~4 Q) S: r0 y! owhile[j < people]
* I6 ^* I. @6 X; v" a: B! N! Y[2 X7 u @; {) `% s4 ~
if (item j( [credibility] of turtle (i + 1)) != -1)) o* ^2 L0 F& z
;;判断是否给本turtle的评价质量做出过评价的节点2 C4 t. O2 d1 c( k' \
[set note (note + item j ([credibility]of turtle (i + 1)))9 B. I8 `4 j! e n& S4 \) m
;;*(exp (-(people - 2)))/(people - 2))]
1 x$ {$ ]7 s# G/ D1 O5 uset k (k + 1)
- l8 L4 N5 z9 L4 W9 l- a" I2 m]$ X. ~2 T9 C* B/ E) B2 D" M7 m
set j (j + 1)
+ G1 ?& G' I, J7 F3 S$ }+ F]
( i4 ]* h y, ]& Q& s8 B( X7 B, ?! ~% Bset note (note *(exp (- (1 / k)))/ k)
9 E5 q! j/ {. ~& @* R) ^; M& cset credibility-list (replace-item i credibility-list note)
( k4 {; \! ]6 M' }set i (i + 1)
; h4 W' v3 o3 y7 O; U: L3 F]
2 i5 I4 P3 w Q! I! Q, @, ^end
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4 A) g8 T( O, f% a( fto update-global-reputation-list: y% d5 U% `, ~$ m7 c7 ^
let j 08 ?: C3 l" Q' @# _4 M. \. c7 r
while[j < people]
6 ?$ @6 s& [8 I1 b" W$ J, M I[* c. L# W( P1 J' [
let new 0- ^: T! x$ k% e
;;暂存新的一个全局声誉
0 I) B7 t9 \$ l& Qlet i 0
' r8 t ?3 ~7 \# Plet sum-money 0
4 ~ K7 z# x& o) {5 X- N, d% m7 ]let credibility-money 0
- X8 Y* \# R) a; K6 ewhile [i < people]* z- K8 j7 D$ ` ]
[
" L7 |/ u6 K4 j2 A& mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& M# i+ S+ T7 G: t6 i6 Bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))# J" }- U6 b; q5 E, a, ?
set i (i + 1)
& u! l, @$ M1 A- U" q( g]1 [: D6 K. U7 {6 q; ?# g# Y
let k 0
s8 J+ T- g/ ?4 d6 qlet new1 0" m s: g( \& ?& T$ `+ B
while [k < people]$ H8 G0 V7 ~0 c; ^$ |4 r* H
[8 P. \/ r* q) A
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)* H4 A6 C) @+ {5 f
set k (k + 1)& z; x( q) U7 i+ b8 K# C$ l" n
]/ D, X n. W3 |0 A
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) H4 z* `, M) M- sset global-reputation-list (replace-item j global-reputation-list new)
8 \' I" ?4 L3 Z! ~8 `set j (j + 1)
) d, g$ t, M# [9 A3 {8 c# }9 ?]* E. O) a3 u1 w1 d
end: o! r0 K6 h8 @, w) n
7 Y; R5 z5 E6 J7 K2 f& y8 u
. s, k% I1 P8 B& O- |& T* F
$ c$ G- |0 [; _to get-color. D5 ?0 E2 c* v; a
G: [: }, U) B4 g: I
set color blue2 ], \9 A ^7 N/ K& J
end
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to poll-class& f! S* N; ~* K7 m* F6 N9 ~/ O; G( [
end
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to setup-plot15 b) n: p. @' U1 J' `- A
! j4 U* C! }. A3 u0 G3 u- X( Q
set-current-plot "Trends-of-Local-reputation"
/ P4 }( I6 W; b5 e8 G$ v: }( h) u, w3 Y# I* k+ q* B2 O
set-plot-x-range 0 xmax: y. O m" [) m/ i
8 d( N, N5 h& l( _& nset-plot-y-range 0.0 ymax# Q( l! {7 W1 F: u- [
end
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to setup-plot2
6 w* q# G; V0 X
8 |: O I0 W+ b1 ]+ M* v7 yset-current-plot "Trends-of-global-reputation"
: q/ E! Z6 e7 R/ i& T/ }5 J B
! _# r8 ^' z/ F/ n$ Sset-plot-x-range 0 xmax
! U, Z' q5 [$ c& d/ n( Q+ Y h: w& t3 d/ T8 C3 T- B
set-plot-y-range 0.0 ymax
+ ?9 a9 e5 I: D& H, L" k% dend6 _& w4 m! p; `; n) J
v6 N6 f% S+ f9 [to setup-plot32 A, R" k8 A# l* k }) ~
. F2 Z' Y9 P7 u2 R3 m R2 p( h
set-current-plot "Trends-of-credibility"
; |; N9 p S ~9 [8 q7 w8 C6 _) u; `: V; U T/ t7 L5 w
set-plot-x-range 0 xmax/ |) }4 O1 Y% I( I
& e$ d2 i. \8 ]' O4 t/ M2 p
set-plot-y-range 0.0 ymax% }) @) }$ D; {: e9 F: ]
end
# I0 f% @" a1 @% l- E @4 D7 J {5 d( L( b+ r g' y
to do-plots
% A' i' j1 l/ T4 N* z2 t; Oset-current-plot "Trends-of-Local-reputation": X& D- V8 m& S+ W9 }. I/ f2 K
set-current-plot-pen "Honest service"* Y' N' Q4 l/ ~: D/ X1 p+ I# l
end
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$ f0 u0 n9 v8 A4 R7 g9 Q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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