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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- F9 V; ]9 w( j% O
globals[! Q3 I5 J* y6 a0 o7 }
xmax% W* u& g: W# T. V( B# v
ymax8 M' F! m, f% @$ n4 @8 g+ A0 e
global-reputation-list2 n8 C8 ^! b0 h% T- a$ Q
9 s! m* S* Y0 r' u$ R) j) J3 A& ~
;;每一个turtle的全局声誉都存在此LIST中2 i1 U* q- f7 q5 y# ]
credibility-list
7 g5 r/ Y, G4 [& a$ t;;每一个turtle的评价可信度
" s6 }! f1 c7 H$ T5 D& ihonest-service* u: }! A% e9 g3 V% P
unhonest-service
3 \8 R' k" ^8 \4 b' {0 roscillation. I/ u( v" U3 x; ^
rand-dynamic' m# M: |) ^# L# c( }9 f
]
3 @7 i- r' w$ g0 Z6 u& }
* L+ S4 Z7 g# j, O+ Uturtles-own[
- N3 l, k" a' s, e x& ^trade-record-all% D, E% K. O3 b
;;a list of lists,由trade-record-one组成1 N9 y `) ?/ T* E( O! n) q2 ]
trade-record-one
h6 O% j: I7 b;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录( Z$ O) o l/ `! d+ Z
% T% [. P$ j6 i$ G. Y) ]7 c! u' g
;;[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 ]% w5 t1 o$ w) s. p* j9 x. Itrade-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& h+ u1 p3 i* \* O6 ycredibility-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
8 B: ]3 b8 h! {/ {! k3 @neighbor-total
. a% X% @* z+ k* f7 G9 I9 M;;记录该turtle的邻居节点的数目& E2 f" h9 L& S
trade-time/ j% S. g. k6 _9 H+ h8 }/ u
;;当前发生交易的turtle的交易时间7 ^+ I8 ?8 ?2 O$ m3 v8 G! \
appraise-give
: O# h, S9 z. [5 H;;当前发生交易时给出的评价
% X5 C3 k" m( {3 L Fappraise-receive
5 Q d \$ Q4 b;;当前发生交易时收到的评价+ a0 y5 h1 c( N4 q
appraise-time
* N, I* Z: ~! Z: k J$ };;当前发生交易时的评价时间
; u2 y% B; }1 h& Klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
' @- t$ o! z" f" w0 ztrade-times-total
9 e' J: R' m; n F; C8 l0 U;;与当前turtle的交易总次数
4 `& f% }: ^' etrade-money-total
r) h- X. V- E' j* T8 x; a;;与当前turtle的交易总金额8 g6 v" d1 o9 F7 W" p; l- C. Z
local-reputation1 v# l( X+ F& S% ~0 u9 H# w. H1 C
global-reputation% f" G' @$ l( O* o6 |& b
credibility* N* W T! k2 d+ R5 i
;;评价可信度,每次交易后都需要更新: B1 Y1 L* J, {, F
credibility-all% S- {% H3 r7 y2 G2 L2 A) _! s. u
;;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/ G; x% @8 L) n" Y F; z& ~
9 p4 o- O% L) a$ x
;;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
/ U0 L: q. k' p3 X% hcredibility-one+ ]1 T' r. A* O# e# H
;;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* s5 P# ? o# y$ a. B7 v
global-proportion1 p$ p3 W8 X2 S; m5 X
customer$ i+ _0 g( s U& n
customer-no0 Y/ a8 a: [4 \: `% m- K4 P
trust-ok
0 q: R% I: @; ktrade-record-one-len;;trade-record-one的长度
/ E r- U7 }$ a; I$ ?& L] K: m& X+ z. i1 A2 q0 e* o% j
) t* ~# i! L# Z
;;setup procedure
: A ^% g9 n+ ~5 W% o9 J% ]1 w5 h& S- Z& A4 t: j& }
to setup
( {- B. n7 q* b f0 y2 W3 ]& L' q- m% c& W' t& s1 r& W
ca
, y! b( I: u; L4 m: q
! \: V( u ^& R7 r# q linitialize-settings
( |) `" T# k6 l: c: \: k, f8 t% Q4 J% R$ q
crt people [setup-turtles]
5 E; O( o* m/ O9 @1 a: I
# m" C. U" u6 _reset-timer7 @' q4 w, B8 X) L0 y
' q% h K9 i M+ o
poll-class
4 J: m; R6 w: m4 V* [4 J2 ?# r$ _) N+ {* _2 T" d
setup-plots
6 t5 \2 ]6 ^: P8 k3 Q9 g B% j4 B; D8 ^" F' ^& }4 q
do-plots8 d/ f2 j( G8 j" k2 P
end
6 J7 H( c. h6 o6 T# i5 p
. X: K5 ^: U4 [$ Lto initialize-settings/ l9 l { q5 r+ p9 A
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set global-reputation-list []1 @$ g4 Y4 ]5 _$ \( M, C3 y9 l
9 z6 z( q0 D3 I" O# Q( j
set credibility-list n-values people [0.5]' A2 v2 x0 Y: S: e& b6 }7 U$ h
. ]1 M' b2 c# d2 p5 K8 A* g& P
set honest-service 03 |* H/ N" T9 Q$ `
; c* \! a! y* sset unhonest-service 0
@( M4 [2 ?0 k3 e( h; g7 Y4 \9 Z1 z3 I0 I3 g7 \
set oscillation 0, t3 I$ Q7 B- Z6 u! j3 l" E- L# a' v
, z% S$ I6 X/ |0 m
set rand-dynamic 0
; K/ h0 v9 x6 D# o! u. vend3 f: o* C9 U8 z" c
5 w; I4 }! V+ J" K% y
to setup-turtles - O: n- X+ c5 I& }: r
set shape "person"
% t* B6 J. {, v* s4 Usetxy random-xcor random-ycor- h+ F( h7 o# Q7 f0 E- U& c
set trade-record-one []' @1 p1 D( V+ K0 d3 T) N
- y1 N" N- c/ a5 w" u
set trade-record-all n-values people [(list (? + 1) 0 0)] + |& r6 B( ]1 q, K2 @% \
' Q4 T+ ]+ P2 Xset trade-record-current []
& |5 t) a Z+ \ \( yset credibility-receive []
- W+ G1 Y( j# B: Vset local-reputation 0.5
* z; X; Z" H; M; s8 e3 @set neighbor-total 0
: U" G7 _0 c( N3 nset trade-times-total 0
8 N6 }3 F4 V' f+ O. j. L- ]set trade-money-total 0: a* t: L r5 f* k
set customer nobody3 q9 n' m/ i: N0 e' v/ d# {9 v5 [
set credibility-all n-values people [creat-credibility]8 o" }$ I1 w/ ^
set credibility n-values people [-1]% M* t+ c* p. m9 h
get-color7 a+ Q5 t$ U0 `, J% a" T' \+ i7 Q
$ g" i( h4 ]( e) s" Lend
: \' Q9 [) U+ ?: N3 R* T/ m
0 ~2 w) f3 F0 O3 w4 }1 T4 pto-report creat-credibility
6 I# `% b: L2 t8 O- dreport n-values people [0.5], E; V! q9 B i% f, o
end+ ~& ~: c2 e* e" I0 L- z
& V/ d9 G: [8 {, K6 I+ U9 Hto setup-plots/ i3 X' _& m* D6 D
8 G& ]# ~0 U7 M! xset xmax 30
4 N2 E8 \' N3 s$ F: y: s* s) R! ]8 z- l% Q4 Y6 Y. }
set ymax 1.0$ n& e2 ^' t4 Y$ ]; G
2 \6 X$ l8 i& m+ _( Zclear-all-plots
5 y `- c5 C8 m- [9 [& f5 {( m% ]5 V5 X5 l2 {! H$ a( ~$ z# j, B. x0 H
setup-plot10 B) O/ g6 ^+ e! r3 R; D
8 ]) n V5 {1 ]4 N. k+ h, isetup-plot2
' `) R, V* R- x7 e4 e( }5 T" ^4 l. |
setup-plot3
, p1 @. i! b+ H+ a" T5 gend
/ I+ w" R$ r; m! \2 @
4 Z& c) W3 ]/ x$ Z% ?;;run time procedures0 `9 g& F6 ~! ~, t: O+ c9 \; v, b' g
* A; D' H b! W8 h% g/ @4 q6 L8 Zto go
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- [/ s" q) | `1 o/ m7 Rask turtles [do-business]; Q1 [8 J7 B) ]8 ]# ^
end9 [' d% k' w3 |5 ~% W% P" f
1 l4 l" f' H" f T2 h6 B; B+ x' Q1 p
to do-business
7 |! u. {) x3 f+ O ]5 K0 g0 f( j: O4 U
5 n: j3 x& V, R) N/ s+ X
rt random 3609 \ ]1 }7 E, i I0 n. Y: T
4 t' n! B/ Z6 _! S5 \4 T- i
fd 1
! I, R c1 ]7 C- g* S
* g$ t( B" x. j2 s: Qifelse(other turtles-here != nobody)[$ x8 i' d& f# Y+ { D
; ^: X' ?( U6 I9 Tset customer one-of other turtles-here
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]. z2 O! r# F$ X0 ];; set [customer] of customer myself
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; H2 o/ z) P( H' |2 ^5 pset [trade-record-one] of self item (([who] of customer) - 1)
, z$ b+ V: \1 }+ A[trade-record-all]of self
5 F# I. t2 C. V, V' ];;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 U1 b* z- e/ C6 }/ P! m0 I# w$ d3 D7 x0 s) u7 G% [' D6 T
set [trade-record-one] of customer item (([who] of self) - 1)
1 e5 \1 N: o# X- H[trade-record-all]of customer
( B7 O: b* q6 T
8 e; X+ t( Z+ E! Eset [trade-record-one-len] of self length [trade-record-one] of self
& ^4 S- Q3 k& V" [6 ]# Z% R. h3 n9 i
set trade-record-current( list (timer) (random money-upper-limit))
+ b b' B2 Z- }1 b* Z. I+ O1 g4 N: n8 w2 T, b
ask self [do-trust]
6 h" ^# S. K3 _;;先求i对j的信任度
- O4 P( m+ e1 w$ S* _8 j. _
0 v) n" e# E$ W qif ([trust-ok] of self), B8 G- M0 T5 {
;;根据i对j的信任度来决定是否与j进行交易[3 \# X2 M& r8 v8 Q2 S; T' i
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[( d, r: Z6 x4 X) Q4 z
! d5 E" m# R& J" ~do-trade2 X# y1 c2 f* D7 k, h
! c# @/ F5 ?3 P3 Q6 I) F" D( L* A
update-credibility-ijl+ y- K0 w; Z* Z5 c* O) d
j4 I& ^; X- w- J7 X) d' Rupdate-credibility-list
- l4 X# ], f9 g' m. B- U) X& d0 t' ]7 N: p' J6 d6 x; d d
' G. t! V- [5 K5 P) jupdate-global-reputation-list! R, \& {4 V2 r3 _
4 n" m6 k# J9 ?- gpoll-class# Q! ^' K {( I2 r! ^
# u) Z( W5 t* p6 v4 ]
get-color9 }: E: k2 G! R' s' p
' d: V$ f" x6 M6 u
]]
0 O7 Z4 @" |; h+ G/ j; g" Z% [+ l2 S3 c' C# k+ D) f- V
;;如果所得的信任度满足条件,则进行交易; \: O1 z5 Y+ M+ }; S
/ x' W, w# C! W6 {* r+ q! \+ W
[. f$ e. c' ?* T3 e. a
B% l+ o3 u: R5 A( [4 t6 Trt random 360/ {1 R% f8 b$ c! [2 @
; p! V6 S, ~' _/ T9 B) hfd 1, X4 E, \1 [0 Q3 I9 I9 O
d% B2 }' T0 R& ~9 p
]8 t. K6 `- F/ b7 b; V: @# j h
, Z$ y& b$ [# Y: |* B# d
end
3 `! ~7 u4 y' V) u$ H+ N' e9 b9 V, g+ m8 ?/ _) o8 u; i
to do-trust 1 `1 } H' h8 t7 u9 ^8 o
set trust-ok False) B+ n! h$ y9 S5 p" G" i
' Q0 M% x8 R* G8 i2 i4 p8 C* d* w* D% ~6 [+ k
let max-trade-times 0
( C' U, v7 ^ A6 S( Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 h, t( }) {9 {, k
let max-trade-money 0" @4 {( g) y% A8 d0 d
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 Y) A2 W- o) R% X0 @- rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 }( q: y! @+ v i- ]- o, X! ?; D2 z1 A2 E6 P( ~: E- P9 S
& W/ x2 T8 Q* u" ^5 y
get-global-proportion
r# }) k6 j( b+ {let trust-value- |4 }) h" {: h, r& ^% 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)
/ ]" {: S# E! B0 Cif(trust-value > trade-trust-value), B0 P# ?+ u2 }2 D9 x* A8 Q- u' R
[set trust-ok true]
2 X+ Z! b0 f% h eend
3 q- D; \! j- u) M/ k: Y$ o# o9 ^7 I8 _; `
to get-global-proportion! f5 [$ P$ t1 x' Q2 A# q3 ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) d+ V' W) N$ q4 B6 U3 A
[set global-proportion 0]. Z/ {9 f+ g& K6 q$ P
[let i 0
h5 R9 [$ |! Jlet sum-money 0
3 R/ K j6 c3 s' t: ]) d" Ywhile[ i < people]4 \0 T5 v0 S* M, }6 z
[1 F; O7 h' @$ O) C' `
if( length (item i
6 u* [% W: o' e' @[trade-record-all] of customer) > 3 )
0 K( M$ w5 g; C |[
0 U/ H4 M& g) t, C( Lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))( m0 t R$ u; N! Z W- V* l" M
]
Y; C+ m' c. P" D+ W]) w3 f& V! a6 S7 B
let j 09 S( J$ u; w" Z- O- ~9 U
let note 0 X2 d7 H" s6 D) Z' x. i: m( R
while[ j < people]- X) o+ C3 ?1 @: Z8 @
[
# E* o$ G4 _% I+ f9 R1 cif( length (item i. D% J% [+ S/ \& D
[trade-record-all] of customer) > 3 )0 Z, P: |1 i* ?! ?. a+ G
[
6 M% Q: Z! @, X: w" eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) t; y, T% } w( C* S+ ^: M[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, u/ J+ L% _$ R3 Q) }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# j3 a* U6 l% J7 p( A, }7 t) ]. V]* G: Q) H! c X: k8 ]& ]8 C
]6 U( T o# g# C4 q& Z$ x. b, T# r
set global-proportion note
+ K5 j+ U+ K2 s/ C1 []6 t6 K' r& i: {9 ~6 t" l
end1 h8 E8 w0 O6 x
/ n0 T) W# B6 F7 z. ato do-trade
9 i/ ?6 g H" p& F! L+ W8 L;;这个过程实际上是给双方作出评价的过程
/ @5 Q$ u5 n4 x4 |: dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 [8 ~( K! z7 _( h! m2 dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: ?" C) l3 _) m4 y5 H. wset trade-record-current lput(timer) trade-record-current/ f6 r2 j" o, s2 i* c- k3 P* t- j! `
;;评价时间3 L7 d, Q3 f: N
ask myself [2 [+ n# W- `* d+ A% F* B& s1 b! i, t
update-local-reputation- M- ^5 {. g. Z/ x2 N4 w
set trade-record-current lput([local-reputation] of myself) trade-record-current& v. H6 `; _6 ]$ Y3 g2 o& h2 y
]
+ p) G' \; L8 i& D+ Sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 i& ?# {( @, I- J0 L0 e;;将此次交易的记录加入到trade-record-one中
" _% R$ L" }6 d" Xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 z$ g7 u& `+ D0 {1 \7 Ilet note (item 2 trade-record-current )
1 d0 Z |* U$ w- P( X5 Y; Z( F5 A, Aset trade-record-current
$ Q( U, g; d: E, s& r3 V(replace-item 2 trade-record-current (item 3 trade-record-current))
2 _: t4 [8 [( I- g. Yset trade-record-current
4 ? n) W. T) Y8 z! g) g(replace-item 3 trade-record-current note)
2 W+ q) p6 u9 b) \
0 M4 z7 @; {7 {' p% m% {
$ U) d: S) S+ `ask customer [- W K- q" {& k6 n
update-local-reputation* H( m8 \9 d" g4 ~
set trade-record-current
a4 S, y b3 k6 {- M; c(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
" U6 d0 N+ k& e5 T2 T]
, S `3 Y- m4 I t* H& Z* U5 |/ {
( P7 R% ?9 I5 B! z1 _
! w$ }# Y2 ?# o h2 q* j: K/ O1 h$ vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* K4 Z9 D2 `2 D' p1 o% S' {6 \4 u/ W# ]9 i5 L' z4 ~7 G
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) K, g; f- D' u# e# M5 x$ v
;;将此次交易的记录加入到customer的trade-record-all中
, g& p' v- s- ]1 G1 dend' @: y9 ^4 U9 H6 b6 A7 c3 Q
1 }+ C9 y0 Z6 N9 f
to update-local-reputation q/ @2 Y0 ^+ ~; F
set [trade-record-one-len] of myself length [trade-record-one] of myself& Q3 ^% O9 w- d2 _
4 m' ]' N1 l" [- \* l! [" X. i& y8 h8 A$ F! a
;;if [trade-record-one-len] of myself > 3 " h! h" V; {% D- H. ~
update-neighbor-total
$ @5 n) t2 R* n6 a6 { T0 h7 X( K/ s- C+ R3 f;;更新邻居节点的数目,在此进行, n8 a, B9 L# g: ]
let i 3 o2 \5 i; D' Q, ~
let sum-time 0- g: d& {# }9 |" K, n0 I
while[i < [trade-record-one-len] of myself]9 ^' H2 a! x2 y( k, A
[
$ M, m. x: H, c$ v1 e# dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( L* ]# g1 x5 j! H, d
set i
$ g- g& Z3 P& h& U( i + 1)- J3 g# S4 P1 d& j
]
3 S0 ^8 c- J; z7 A- q8 r: llet j 3
4 {. e# \5 Z/ v: H, Z3 y- flet sum-money 0
- f6 Z& @2 S6 U5 M1 ~2 ~while[j < [trade-record-one-len] of myself]) x7 W# J& j' X/ g' I* c5 {
[
! V1 i- }( {0 p$ |# mset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
" s7 X* s) n7 J' Z! D3 i0 k. Hset j5 L4 F! Z. d% R) [0 Z; k; ]
( j + 1)
( J i1 K, b" j N* l]
* \' A- }) w% [ X9 wlet k 3
6 ?# [ a* ~/ B0 {0 dlet power 0+ O ^" e* a( i, C* E! }. B- t8 A8 h
let local 0
0 N( }4 P$ W" H9 mwhile [k <[trade-record-one-len] of myself]
2 v( } n, _9 x) c[
D% g3 r1 [6 J# l$ ^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)
0 B5 a* o8 o3 _2 f" Cset k (k + 1)- m* y- [0 p. N; O4 B
]
- s) E1 M7 z6 A1 j1 cset [local-reputation] of myself (local)" z% t5 ?3 i/ X4 |2 x" M
end
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to update-neighbor-total
/ r- i: H+ b, a0 y5 k+ o4 Y' Q( t2 w7 l
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 s. G h/ T) v/ }6 E( C
% P% G+ j7 Z" U, q/ C: V& }9 f, e) X0 j. U
end% W9 b9 k4 n0 v( X! m
) F( y/ b) _) w# b. v+ L; \to update-credibility-ijl
% R R/ _ b6 n5 }# O3 D% q
( e+ }1 U; B; W2 W* A8 n;;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。: O% d2 {, R. I# E8 R
let l 01 F" S% z0 {1 O7 n; c
while[ l < people ]- n( h* i& j: R. {0 b" Z* f
;;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
( ?( n0 y- Y5 t6 t6 @0 J8 k7 j[
: Z, E/ C. ~) @. A/ Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 |4 w0 F9 n7 v$ N
if (trade-record-one-j-l-len > 3)
3 V; {3 b+ E+ o& ~1 R[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
: x+ Q8 w( w* P- p2 t0 ilet i 3
. [' p& e% S* Ulet sum-time 0
z O @) ~) A% V! s# Kwhile[i < trade-record-one-len]0 t- A C, ?. g* x6 U
[' j; M, r+ d. _9 A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 {% s7 y/ x$ u7 b
set i/ C2 p. I& F; i# L* ~) [
( i + 1)
, R0 o: t7 g% i& x* l]
: z& i! I) Z3 v" a) ]- g& D+ Qlet credibility-i-j-l 0$ z; J) E5 `# E) O, X* y4 I
;;i评价(j对jl的评价)! v5 t6 d6 J0 a7 \6 [1 B. r5 w+ c
let j 3
7 w# J4 s2 w0 h2 ?let k 4
" |. | ^! M9 T4 g/ ^4 pwhile[j < trade-record-one-len]
2 J* v" o4 }* K[" y9 d, b3 A ]' B: x" m# F3 S
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
+ _6 z) j4 U' y; }9 f* g) Mset 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)/ I) c0 A, K) ?8 H
set j
, j# F" L. l' F0 G( j + 1)
- d& T* ~; @& h$ G7 ~1 s]1 l; c3 K3 b* M% p9 }' s. M
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( U3 O$ e% B2 S+ N) o6 u
9 ` B. Q( m1 ^8 ^! Z7 b! G4 x @2 a! V1 s m" F3 f5 O! e
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): y1 A/ y/ W. B g% y. g
;;及时更新i对l的评价质量的评价
, ^( D% H4 i4 D6 U$ I, Qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 m7 W) s# S$ B% E
set l (l + 1)5 s, p5 | ?* r( P& h7 n7 S9 f3 p( U
]! k& u- @. U- G5 ]* K4 `
end0 m& r# w" m$ a
$ L4 C/ ?& {) x1 B; h; gto update-credibility-list
8 J& Q \5 N; V( b' A" ^ ]let i 0* i/ n% c, q5 q/ N5 o1 O% c1 k
while[i < people]
! O0 }2 y& l4 r[4 V' o+ E. C9 l$ Q6 j' V, D
let j 0
$ d6 o. Y- A4 Z+ X% Ilet note 0" b0 E: a3 ]* J8 Z& Y
let k 06 }6 Y! O* R8 I g' S% S: m9 }
;;计作出过评价的邻居节点的数目
" y2 X' y. R( V; r9 U* I6 vwhile[j < people]
" w5 F" v0 X/ m/ { }6 m: i* r[
% @6 V2 r4 B6 X I# [/ |7 Vif (item j( [credibility] of turtle (i + 1)) != -1)2 S% ~! W: b3 C5 j0 V: r: c
;;判断是否给本turtle的评价质量做出过评价的节点
5 _6 y1 ]9 W* t# j* m8 u" D) ~7 N[set note (note + item j ([credibility]of turtle (i + 1)))
+ V9 q1 F3 @! m0 @7 `- };;*(exp (-(people - 2)))/(people - 2))]
* c# v+ {, m! w; B( l. m( rset k (k + 1)
+ m7 c2 m7 P% J9 g]2 Q: E: B) D# j( P; {! H# |. V
set j (j + 1)
9 c9 r9 o+ f; n. z]& K. n* O4 g4 s4 |2 G: s E
set note (note *(exp (- (1 / k)))/ k): }' C- N) v( R9 S" s t
set credibility-list (replace-item i credibility-list note)
7 F& ^: v" i9 m+ [; U' j, G1 E: fset i (i + 1)
* G+ i, h) T' A]! ^$ l5 E" L" {" X( }* x
end
2 l" V& C3 t% o w' b* [
* l$ Q9 h4 Q9 y$ n3 kto update-global-reputation-list' E8 J# z5 f; K z2 a# g
let j 0
+ Q$ _7 T8 t9 C$ o; bwhile[j < people]
* I( t# h( Y+ C7 Z U, T* w[, l/ S/ n; C' w' I1 i
let new 0
' Y. U" l5 d6 j, b8 V;;暂存新的一个全局声誉
0 D- p; R/ B) f2 R- Slet i 0+ [( y; A G( y/ f/ I
let sum-money 0; v3 W' _! b$ p/ Y3 X
let credibility-money 0( l" o$ s! s3 K6 E+ Y, g; E
while [i < people]
1 e7 T6 @* T: K$ t% W' i# D- i8 ]" C[3 b5 O# h. d i# j* f$ r
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ U: ^, _7 [( L* ~set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); g. m; C" |7 M8 h; C# B5 P, a
set i (i + 1)
& w# q1 s( k9 Z2 u6 f6 W; X]
0 o% F: ~) W, ]% Flet k 0! L$ G6 ^2 g, R5 _6 ?7 x0 ]+ A
let new1 0, f* @! q9 M- G
while [k < people]* R4 \7 b& R, a: P
[8 X0 s; _6 L& Q& j' }
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)1 `* R5 Y4 R! b) C; R
set k (k + 1)+ u* }! }4 }8 m/ Y1 ^
]
- k2 l8 b! {% }set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( I) J# {* W% u: Iset global-reputation-list (replace-item j global-reputation-list new)$ P- e2 s: A8 i9 K9 o; H
set j (j + 1), C3 o2 a* I% q9 ^
]
: G L+ x, J# \6 {' ]! @* eend" X0 s$ v: _4 | u
. i1 E8 H/ C4 Y, F+ S& \/ a1 X5 J5 v7 t! P2 ^
l. b. ]2 g: U7 c
to get-color
/ U! q9 _, q! }- u1 X0 W4 I+ m9 n; c5 ?# D5 L) c$ n. }( a) j
set color blue: }& m, W8 V8 u0 W8 h# N
end. N6 R1 \& {# L6 Z; W$ I
' z9 h& ]0 l |! X# l: ^& zto poll-class
. B- z, q% a+ P6 y! _9 r' t. Yend; I9 r, |, [6 D. |. W* A9 O
( R+ Y& l* l% |; } a) u- n
to setup-plot1* E# Y7 s. Q, S9 C
; f$ q8 _# ?* X
set-current-plot "Trends-of-Local-reputation"
% E' o \/ L$ X" S9 ]& M0 P' Z4 a" a9 |
set-plot-x-range 0 xmax
5 }2 k" G# W$ h" N2 Z8 v& M: J- I' n+ E9 I
set-plot-y-range 0.0 ymax U5 t+ F" e6 Q) ^+ S+ w4 B1 Z+ ]
end
( L5 L7 ~& c/ O# g4 L3 `) n& E
. C; G& u4 E4 X9 jto setup-plot28 c- H v9 F. z2 X! B* J$ q( X% I3 b
9 f& l. L& J% V5 Z" @2 k! I
set-current-plot "Trends-of-global-reputation"
. q+ A* d. m& H3 G/ }) A+ ]9 E& z5 C/ U. F! O- w+ Z
set-plot-x-range 0 xmax
0 X" n' V* V/ W3 V( V5 d8 m. M% I/ C4 y' r( q* H. Q
set-plot-y-range 0.0 ymax' D6 Y; U1 v, ~8 o5 y
end
1 e5 i: j/ S/ F: _9 W
( V, w3 ? F+ E6 a8 b& Ito setup-plot3& U6 H. a' t' X6 F3 H L
7 n- p$ A. `. ?; u
set-current-plot "Trends-of-credibility"
. m8 a) t& O1 _* t0 M$ L& u0 X/ p8 b' z* ?
set-plot-x-range 0 xmax
) Q& T5 W6 H( F0 f2 `7 ?
1 j7 d5 v8 P5 J" W( t* @set-plot-y-range 0.0 ymax
) c# y; F- ]- ? Yend
' s# A5 f R4 N$ C a2 M6 X8 Q4 L
to do-plots$ J( }" w% Z6 s/ k7 l8 _
set-current-plot "Trends-of-Local-reputation"
" o% K1 d4 W& \9 _5 z9 S1 Y3 fset-current-plot-pen "Honest service", m: a, P; ~3 I! O: u+ P
end# l8 z1 Z8 J& ^! k/ w( N. P. T5 ]
0 V1 s4 V# d" ?* W[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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