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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
" X ]! U* Z& [* ~ iglobals[* r4 g. {! T7 l# s$ C
xmax" F! l- O- O: B" v' {; L* ?8 w2 @
ymax/ {# U1 B, i& e" _! z1 a( O
global-reputation-list3 N* b# o3 k. l
& [! l& g: A( O; \( y4 E
;;每一个turtle的全局声誉都存在此LIST中; j" H4 {+ ~; i
credibility-list
+ a" V' K2 G% z# J a& n8 K) c/ N;;每一个turtle的评价可信度# K B% T; c% A# [; l- a, Z
honest-service, i( l" k3 O: V5 u- Z$ H
unhonest-service( V/ J" _. b: z7 S6 c
oscillation; r! R, B% D9 c6 A7 @8 X3 O* [0 I
rand-dynamic; e7 q: O, y2 Y, H! X0 ?3 J
]. j+ {6 `, k0 }6 w9 C1 O9 n
- T3 y- ^5 R7 T" nturtles-own[
& z: n* i9 q9 y- w! Q; htrade-record-all0 Z7 _0 o% |. \
;;a list of lists,由trade-record-one组成
( \6 a8 R! R( Z! ~8 h0 K9 @trade-record-one
2 q$ F& [; C2 Z7 g% y) [' e' q;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 s$ [6 _/ V5 Z [* w- p" d
/ m1 P7 C" i! P6 h# N;;[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]]( L, E5 ?# O1 Y& l y5 ^
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]
* _8 C' O' Y" }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
+ K/ b, b2 i% C1 _0 @neighbor-total
8 O0 |' r' v4 ?5 w0 f9 _;;记录该turtle的邻居节点的数目6 T, O8 m$ S7 H4 O3 X- P
trade-time; h1 p* R4 z7 `$ y } G6 P. x
;;当前发生交易的turtle的交易时间
: K j5 D5 R) s' [: z0 d% r Eappraise-give
% e/ C% [$ J: W1 [1 ?;;当前发生交易时给出的评价
+ v" L* D9 K. a2 H% iappraise-receive
/ W' q M9 \* q( b;;当前发生交易时收到的评价
( ]. n [5 f# f: |3 ^. j9 \9 T% eappraise-time
$ D5 \; V' j' f4 |8 Y;;当前发生交易时的评价时间/ i& [6 h8 P( w. k3 y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
c& c$ G2 |/ h& ~2 O3 q, Y9 A0 itrade-times-total
! R+ m9 M, v, t;;与当前turtle的交易总次数4 p! w( q! \7 D7 @7 Y
trade-money-total
' K9 a4 @0 g9 G4 v;;与当前turtle的交易总金额
8 e; F$ Z! Z" A5 [, Nlocal-reputation x# e. ?5 n. T% y3 K$ A$ K% ~ p
global-reputation! c- l6 I* Y1 Y6 ^1 w s; T" M* V
credibility
/ u1 Y) K6 V. B- m;;评价可信度,每次交易后都需要更新
# D \$ |* {* w9 ~ L9 {credibility-all
. [. |' P1 X9 s;;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
& {4 q5 ]$ d- j* y, ~: K6 p: R/ f0 f: D, ?$ [( _7 L8 k, j. p( g% I. k
;;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% c# Z# M; J' M: }
credibility-one
5 E+ W: E8 @" n% ~/ y2 b;;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 |/ ]( k) l/ i- Z
global-proportion
/ e f/ e9 D4 W) b5 ncustomer" w2 t2 d2 g7 o) ^
customer-no
4 b6 `+ @) W1 r6 \9 j& ptrust-ok
1 K7 o* a& O% o. P1 \9 F2 @. Vtrade-record-one-len;;trade-record-one的长度& E1 C+ y( b$ m. T6 ]7 p
]
' }0 ~5 d+ n! E" S C
( T+ m8 i. h' c3 G! R;;setup procedure1 v; ?: ~% Q5 r
# }: g- L- o3 m* e# y+ O2 B- i6 |
to setup/ J& U4 O$ k( R8 X [& k
, ^8 k8 i: {! C5 o
ca
4 u# N7 k' z2 x5 E, J3 [7 L" k: n$ B8 ^. v- a/ U2 G. ]
initialize-settings6 O$ v6 I( e% ^* `. p6 a N
0 G. \1 y! _7 w+ l7 U
crt people [setup-turtles], ^: u( N: P% ~8 v! u9 c9 M
+ M, s/ ?, J# o p+ g; K- L7 Ireset-timer
# m, ^$ G$ Y2 _& `
7 q, @, m+ o0 M( V6 A$ Ypoll-class
7 v9 F5 ]2 Q/ t/ E) O' I# h1 u" j2 x8 \# |& ]
setup-plots
' T- ?# h* ~, y1 w- M* C2 T2 B5 ~! C$ r0 \- P
do-plots
+ d8 K+ _7 |7 _( \& T% v, _; Jend9 V0 w3 c4 E% l5 j k
! W; H9 |6 G" D$ W4 Y
to initialize-settings
/ W0 K# g% ^/ N3 q! n" U% u3 z( W0 S* S, S8 ^" }1 j
set global-reputation-list []6 ~8 Z* @5 i' t( r7 E
" J/ Z1 I/ r1 K
set credibility-list n-values people [0.5]
) Z8 H6 q! m) {+ f+ A3 Q( h: n, @" d
set honest-service 09 M. h- ^. e" B9 O; a
. q/ Y( {1 t- s5 T) wset unhonest-service 0
( g1 i, t% b. f& i! i6 i1 F% [1 K" B! X
set oscillation 0
, V# W( t& @/ f2 |9 W4 Q
/ E, R) A' k& U, j* u, {set rand-dynamic 0
2 z4 \, H9 {- r+ nend
3 p9 N. g- j! }$ }- M R9 l2 v# I
+ {% H6 N& K jto setup-turtles + d7 ^; {0 `" U R+ p
set shape "person": A# T! L ?! |; }6 h5 P
setxy random-xcor random-ycor: x5 v5 J+ o/ q* s
set trade-record-one []
# }5 q% N* d5 ?* r1 n2 O( d2 s. V: E0 V! A
set trade-record-all n-values people [(list (? + 1) 0 0)] : M, m! `& a1 }3 Z+ H
% l( X' i; @0 t' i
set trade-record-current []- h9 l" T3 k4 B& k7 z
set credibility-receive []
( n0 f! y3 L- z6 }- oset local-reputation 0.5- K0 c, x: j$ J5 { q# O- Y
set neighbor-total 0
c. R4 c: ?2 z( r1 n2 rset trade-times-total 0
* C& u+ c$ e3 B2 |" Y1 Dset trade-money-total 03 M* ^" @ ]8 [# V
set customer nobody0 y7 h1 M# Q8 i9 O; S0 l
set credibility-all n-values people [creat-credibility]
+ Q3 u; g7 Z* j1 J* t8 xset credibility n-values people [-1]9 V8 h C$ `4 a& X
get-color
* O: b# b9 f- I# I+ u8 j% r4 E+ P
end# d/ Q, @' Y/ F- T
n) ^* s$ t: j1 f) V
to-report creat-credibility& J& e) y2 [2 h- `4 P- D
report n-values people [0.5]- U" x/ F: f8 m8 e' \( y
end
9 _+ N0 X1 A4 m1 T: F/ j0 I" J: ^ y: D
to setup-plots7 e0 P9 A1 ^1 A! w
( K% C+ l6 F& W( L& b2 M5 xset xmax 30
: Q$ [. [- ?% g! B" ?8 T
/ B5 B7 V3 p. l }set ymax 1.0
# C" Y$ Y! e! m% }3 t8 y7 L$ O
+ ?( u2 @5 n6 jclear-all-plots
( N: [) L- l* H- r P& t+ a% n% o# `6 }
setup-plot1: l+ |& S9 i( v8 V! w& i% `4 u# Z& O" \0 @! {
) o0 K; ]9 g! f8 Psetup-plot2
4 @6 ^, m& @+ y
" z2 ~; b4 C# j0 T4 A( osetup-plot3
. D! {/ C3 d5 T C6 Q* s1 D; Pend
" o5 f# ?/ _; n/ ?) |8 w
! L. N' [ C; o& Z) |! ]; Y1 a;;run time procedures& M# A$ B4 H1 k6 v9 ]
. ]; t, {8 ~1 D H3 Mto go6 s" @. \: h' @. s3 a6 ]
- x+ k9 Y, n) R+ O) O
ask turtles [do-business]; k) x i+ j4 @$ g3 D
end5 d$ M9 H% O: @3 p- B I) q \ K
* U$ B+ y" |6 M- N0 ^
to do-business
# V3 V0 G. }" c7 L6 i- r5 c, H0 [1 T* P
" m3 E |4 e0 D1 J9 |: I irt random 360
5 v: q/ @! _3 d- o
2 m) E6 c1 H1 F# R' @fd 1& G1 m* B V# N" J0 p) G6 R. A1 Z
, T2 ?$ g( d7 V) j: iifelse(other turtles-here != nobody)[
! X' ^' f2 Q/ |4 F P/ Y! Q) I/ }+ T# \( A% A
set customer one-of other turtles-here9 R0 y" x8 m. S e3 [
- S/ p( O. W, f" u;; set [customer] of customer myself* n- C4 ~, ~) S5 ]' v
, r, @5 ]# }0 m% b; Jset [trade-record-one] of self item (([who] of customer) - 1)( o5 |2 G* w- {; D. X+ g8 u8 Y
[trade-record-all]of self
1 X, p- i; f, n& r;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 @1 I" o3 [- L/ u5 X; [& ?9 ], U1 o7 U E
set [trade-record-one] of customer item (([who] of self) - 1)( y: [+ O' r3 N8 m6 p2 n
[trade-record-all]of customer; y/ ~* E$ r3 D- j% u
% E- e: j# e& | j3 H2 b. K5 \set [trade-record-one-len] of self length [trade-record-one] of self
. D( p- V: ]# T( Y+ q# b/ V, C" I }3 Z/ O5 U7 e5 H) ]
set trade-record-current( list (timer) (random money-upper-limit))9 m" g; W4 G! O( _
, _; W! x/ h- Q: C+ Q1 ?
ask self [do-trust]4 F0 L! N: A8 Z5 [0 E& W1 P- i8 q+ r% q
;;先求i对j的信任度' _6 }8 \, j. r+ O
% n: I/ y" j) ^$ m0 m
if ([trust-ok] of self)
: I6 K% e7 c' L) j5 g;;根据i对j的信任度来决定是否与j进行交易[/ |, c/ Z7 ?. ]" z4 W- D4 O0 W8 H" N
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; \" `: p6 j* V7 s
& m9 N8 O6 v8 n5 H7 y
[
, g7 I! P* C ]% d5 n( R' g* ^7 J* l8 Z/ W3 k3 G; {9 J' J; q
do-trade
. \; r6 V! X, B4 i
# o& g) T" b4 A/ U4 pupdate-credibility-ijl5 s2 m- |! l5 \2 _/ N, n. ~" \% y
9 S, A- C9 p9 i6 A1 ]& _
update-credibility-list
l, j+ y, U$ w/ d% n) w! o
. h8 N. P$ q+ _2 P- F0 r+ N/ d
3 O$ k8 Q) M: B2 [8 Qupdate-global-reputation-list3 K* z/ s) \# r6 d* T0 ]
4 z. W. C. v+ k' r( [& p
poll-class0 Z: a3 \$ E' R5 `' [
O1 R6 }" v: H& E- B+ q
get-color
+ t6 H- [0 X* Y9 f& o
( F9 X% d! k' U3 I+ `]]: ?2 E# q7 G8 q
! H4 @& ^+ o3 d( Y( t* N8 t% w
;;如果所得的信任度满足条件,则进行交易8 y ^ F' t3 Y
# n2 n' I- S# @8 U2 y& K, P
[" M; n/ Z8 e) j- E6 ?
) X4 P0 [0 _; e: D0 S
rt random 360
6 Q$ `3 C2 u, I0 S5 v) x2 |* L/ y$ c1 Z2 S7 w! X
fd 1: }. ^- w& z' Z4 u% z4 ^! u7 ^0 @
, @& l# F" O6 A, ]% N3 u], {% {) `7 i; T7 M
, u3 p$ m; b! u0 G$ W# Tend3 ]# [% Z: V9 [, w8 s3 v, ?9 M
$ H5 \/ N; \( d$ Z/ @3 W
to do-trust
. X- U1 r8 b$ F2 N* \$ P- xset trust-ok False
! e6 m9 k; ]! f3 ?7 o
1 J0 ^ }. d# Z+ K4 Q; j
?; a: ?; b0 j- B# P. M8 Zlet max-trade-times 0
& ~$ V- `3 F, O; |( m9 gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* j2 f, }; Q U1 Q' `6 N
let max-trade-money 0
1 h8 A' B& `/ Wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 N$ _4 r& X1 U3 ]1 W* u& J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 t7 H) ^6 ]" H! M% `3 R
; M: k' m5 E2 }, o. m$ }7 Z l5 z; k( b5 F+ y) @& k# V
get-global-proportion
; ^+ V5 j: p4 @! R# t! ~) h g5 |let trust-value
8 B; h$ H' d9 f0 ]* U5 Mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
) c0 W# U+ U( n5 V& e) jif(trust-value > trade-trust-value)
, y" P, E* H" w6 w1 f# r[set trust-ok true]8 U1 y# J1 ~2 W' M
end; ~. u: m' k6 g) W' V
( ~# i+ D5 X4 C- `# Xto get-global-proportion1 F9 F7 m5 x* t- T
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). S6 X2 X0 I. A' Z. a4 b
[set global-proportion 0]
5 p; Z" j! D) w! |) I[let i 0
- B2 \" ]8 X9 l; clet sum-money 0
6 v& c+ B% g r' ywhile[ i < people]
5 x) r- p3 O F1 W0 z1 ?[: ~: z/ n9 M5 u4 g- h8 m7 t
if( length (item i
- }, T# M' E1 V1 j* F# F% p[trade-record-all] of customer) > 3 )5 h: l( l0 @0 {+ ?8 Z; }
[6 |% P! ]. G) U1 V! h
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 b1 m. b, f! @! W1 h
]
; Z2 ?7 d; v- V W]% i2 {' b5 k" C" i i( f
let j 02 u+ p' J+ W; e' h$ p
let note 0- B* B9 c! \3 H
while[ j < people]
4 E) Q/ b( E( P[
, o/ a2 T8 Z; X: w6 i) oif( length (item i6 ~7 Q' J/ [2 K+ x( {5 i4 q, N+ `
[trade-record-all] of customer) > 3 )
. S1 k8 p8 E( f3 X( X; o[
( A6 u6 t8 i: Z6 I5 E, Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). ?4 i, z% p, q2 W
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' Z' @9 i, G: J/ x' T' j* ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ r: ? R) c" t. i4 Q4 j9 X]% N7 E0 ?) `' X8 b' m# I( }+ ]* O' O7 J
]
" E& `+ I. w6 D3 r- [* sset global-proportion note
- d4 k0 H+ v) W) }. Y+ Z9 F: D1 x c% ~/ O]2 H5 }+ H) y; c6 `: Y l) T
end
' Q1 ~9 k) {; c5 @1 v4 Q: F
% G& b4 [* z9 p* M& w) f! x7 Zto do-trade
: A$ _) i. W n1 L;;这个过程实际上是给双方作出评价的过程; v6 X0 m3 w# H8 {2 Q9 a2 q: X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 m9 A, o4 E& ]& ~- u3 ^% d+ @ C4 D0 S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 M. j) _/ [7 r1 O" m
set trade-record-current lput(timer) trade-record-current
$ r4 V( Z4 L1 U# t6 [, ^" R;;评价时间
3 W1 b/ n! ^3 h2 a( O6 jask myself [
- k+ v7 b: k i; v, T) fupdate-local-reputation9 m1 g4 U, f- t& e' ~- F$ U, ]
set trade-record-current lput([local-reputation] of myself) trade-record-current
: G6 `. ?# S" f& U4 h+ M: t]8 g+ [- \7 t$ J+ }5 U3 b; |" z, f0 `4 P0 ?
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself; |; e. F: s) b6 z$ r6 n7 E
;;将此次交易的记录加入到trade-record-one中. o. I& ]% }3 V# B7 \. |* A N* _8 R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): t9 g3 E3 H$ b$ U! Z7 Z
let note (item 2 trade-record-current )9 b# M' w8 N; `8 O! n2 d4 w- C2 V7 A
set trade-record-current
: P: N( k5 ^) B4 u! t3 f( K(replace-item 2 trade-record-current (item 3 trade-record-current))
# Q* Y, a7 _. s* j. o3 m% C9 nset trade-record-current
/ d" Q. O* C- O8 c4 S% l(replace-item 3 trade-record-current note)
) }) C- F$ ~) j
5 |0 s' \2 E7 h# |* A& Q
: s4 U2 O6 i. T9 Q5 b$ s; rask customer [4 f- U2 H) J! Q
update-local-reputation
- O7 B* X9 h4 Z; gset trade-record-current8 Y9 K3 b. L7 \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - C4 R* _1 p& i* @7 \
]
( \$ I: X: V1 ^ g4 e. K* c3 P8 h* L/ Q9 D% w7 R. s2 s
0 V! _+ j* K# i- p
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; J, _7 o: e, m& V0 o( n6 {
! D7 m8 Y9 x9 O' d. N+ Jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! V- |1 |" f6 {" A
;;将此次交易的记录加入到customer的trade-record-all中
. h0 Y3 b5 @ uend
* ~0 D, X1 s' k) \
! O K2 z8 W9 H9 Pto update-local-reputation
: i5 Q3 x& x! B5 b- Y3 ]set [trade-record-one-len] of myself length [trade-record-one] of myself
3 _, d9 E9 l5 J. e' j# p$ D4 e' t& Q$ C0 n) U
3 b! {$ ?+ {5 C2 G: J, E8 z;;if [trade-record-one-len] of myself > 3
8 ]2 V. N4 ~: X: Gupdate-neighbor-total
7 p# D, p* A# Z/ i- f% M;;更新邻居节点的数目,在此进行
" D) A* X4 ? V! ~( \8 Y6 w2 F8 v: I: wlet i 3) }- j3 b: k0 O, ~+ p& m
let sum-time 0' ~( _$ `$ D/ R; Q# K" O6 u
while[i < [trade-record-one-len] of myself]
- T' d- U6 R! A5 P[
: W$ Z; b2 N6 A& T. p9 Bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& P& Q+ B0 @" e" bset i! e" ]" z% Q% t4 Q- ?4 T9 u1 J
( i + 1)1 ^* E. f' ^* U* D
]
6 R9 \& w! Z2 L* ^let j 3% m T& ?9 D9 [# ]& ~% C0 Q! v- u
let sum-money 0
( T$ L, S. a" E. O: }, n n- owhile[j < [trade-record-one-len] of myself]0 \' U( }7 p3 F" t) ~( M
[. Z3 M6 u% A2 Q5 M6 `8 e U
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)& y! h. F9 l ?* b4 c4 v$ Y" ^# Q
set j
- w0 G6 j0 ~' @8 Z9 i0 G7 @; c, |( j + 1)
. B& }; {; w- m$ b]& B4 @" f* c# L# K( a2 E! y
let k 3% X, b# C ?# o6 p- z* I# T
let power 0
: r, F$ a$ ]8 \ ^# {: [/ Slet local 0
! R# w" X1 i4 r0 \) w2 pwhile [k <[trade-record-one-len] of myself]9 G: l0 ?8 S- G) i) ?( Q( z4 O
[
" r' o, G# o9 r. l+ F8 F7 G0 y& Q& Gset 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)
/ C" Z* o1 G( [& I, b& S4 z* q2 Kset k (k + 1) R- E2 K1 A9 M
]6 ]( @4 b% g; [
set [local-reputation] of myself (local)
* v- i/ [4 V, Y% u3 j' I4 kend) ^# l7 G) Q- k8 r* [0 `3 j
/ T9 }# ?( S7 O( z. q7 Pto update-neighbor-total1 n4 B% t' |3 s2 A" Z+ j
' {' r3 G$ g$ b3 T% y( C5 U$ xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]$ p1 b/ o; Q$ W5 g; v# Z
5 B; W" z+ M2 |
. S# i! [6 }3 U0 A. ~/ G& N! m, G' Z
end3 p4 J1 L- |+ h4 [: n- J" d8 d
+ U7 ]( w# |, e/ L# i
to update-credibility-ijl
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;;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。( E# {* f& J7 X7 K' J5 c4 y# L
let l 0& u. B8 k9 K$ k2 t) ]0 A
while[ l < people ]' X6 v: n2 m3 P* e& N; U; L1 O2 u
;;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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" q- v& |0 D! vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* w% b# A* D+ Nif (trade-record-one-j-l-len > 3)2 Q u% g; G- @9 }0 W9 Z N
[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
7 R" w: c& V# ?1 d, Llet i 3
" Q+ o% p8 ^* V6 g# Y6 Xlet sum-time 0
9 u D2 W; S9 M( f7 xwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 u9 @6 `9 G# @4 K1 S- Kset i: {# x0 p. S% `# k" z6 [% D
( i + 1)' V4 s9 X! b9 K6 K) j
]
; }" `; I) C$ G8 ~& [# jlet credibility-i-j-l 01 q- m0 w! t* a) z4 ]' |
;;i评价(j对jl的评价)
9 {8 \1 L- N$ f- w% B! A) \& x$ i$ ]let j 3
9 m( ^$ o% k. q0 o; b" i7 x" y ~ G* Clet k 4
3 Y1 G; ]; ~! k# [! {( O X% i$ owhile[j < trade-record-one-len]7 ^; \; M0 `8 o+ G# w9 q# L9 u
[
" w; H8 f5 {) k8 a' [7 P4 C* Nwhile [((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2 D, K1 @& G8 m
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)
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( j + 1)
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+ d) ]! r/ @* E, Y+ l3 x; Y5 W5 ]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 ))' g2 W! b @2 |5 o# e" [6 _
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( k: S0 ~; G9 o. ?. F$ p;;及时更新i对l的评价质量的评价
4 K& L7 M: [. I) J* y: zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, G; C( z1 Q& Eset l (l + 1)' d- Y5 Z Q8 f( i: [
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end y* Y. `" v: u! a3 @ K, x' u
/ d, d/ z$ @& K$ [0 f6 K- n, Pto update-credibility-list% n5 O- ~& Y7 L( |! L
let i 01 b2 E9 j7 B" Y9 t- _# p
while[i < people]
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# Y4 z- \( W. ]. Q0 m ^5 L, \let j 0- D! Y w) r4 [' P4 j9 ?0 p
let note 02 c, r! o* e5 g. @1 Y
let k 07 e/ A6 Y! J! b# K0 g. c0 m
;;计作出过评价的邻居节点的数目
[) ~. F& ?3 y! jwhile[j < people]4 J. \; W9 F( C/ K; C' N1 d% l, s
[3 `: h& X1 u& m, }5 L) l0 S$ @
if (item j( [credibility] of turtle (i + 1)) != -1)
- r$ |5 g, u5 s: L3 B1 Q/ y;;判断是否给本turtle的评价质量做出过评价的节点
! T4 w/ z' l$ g- v[set note (note + item j ([credibility]of turtle (i + 1)))
' v/ A% a& ~! R+ @/ i# c" T;;*(exp (-(people - 2)))/(people - 2))]9 T# \; o1 p3 C$ o* x+ W. Q
set k (k + 1)
; o. h& w, y W; n y1 x]* D0 u# y! i8 x! w
set j (j + 1)
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, n; k' D( y1 x# Bset note (note *(exp (- (1 / k)))/ k)
+ e- S- i( Q3 Z* D9 Fset credibility-list (replace-item i credibility-list note)
2 O- |3 l7 A; t& z% ^set i (i + 1)
9 F$ d5 [% g- @1 t]# D) \- H+ x4 J; I* B
end
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to update-global-reputation-list+ D) C" @; [: }5 o& ]
let j 0- Y+ H6 Y( ?! q$ B! q
while[j < people]4 c9 l! Y! G( s- n) {: t& F+ Z7 B
[& E+ j0 E5 D _. V
let new 0+ a) {. Z0 f7 n
;;暂存新的一个全局声誉
+ p7 T, l: F3 m3 r/ j; a1 blet i 0
$ a \1 O# `5 n! d% l! L. Wlet sum-money 0
: \7 ~# v6 w9 s. ~let credibility-money 0
6 a7 P1 h9 a' Kwhile [i < people]
5 _$ Y4 v8 G( h l3 U! t[
' z @) g/ m4 }; l& O7 L2 qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ T. |3 ^1 m0 y1 tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' |0 X( B' }5 e+ @4 A$ r
set i (i + 1)
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2 S+ w1 G* V1 tlet k 0# s3 O7 u; S* y/ M
let new1 0
, }9 q: D2 e# O6 x& R8 `/ X# h9 _while [k < people]
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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)* ^8 X0 T+ r1 A% J
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " P: H! s+ B! `& G4 j- @5 y
set global-reputation-list (replace-item j global-reputation-list new); K" N2 r$ }6 y! a k5 Z
set j (j + 1)7 h4 f( T8 h, } f3 m( d
]
" q. j5 G# X3 o: b# N* p/ e& n4 a. a. Cend5 X( M: s2 E1 a, ]$ v/ z
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0 s- w: Y+ d% P* h0 B+ D7 `$ u" d' Q
to get-color
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set color blue2 m' j$ ^* J# V0 V, F7 W4 |' ]
end
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- B7 ] m/ N' t1 Rto poll-class( M8 A/ Z+ g) K p7 P
end
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1 w, A# C' t& R4 }- ]to setup-plot1; W) C1 X% E {4 C+ T
" N' @6 v) Q, }& K, Oset-current-plot "Trends-of-Local-reputation"; w( V3 O0 I3 N' b! h
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set-plot-x-range 0 xmax3 Z' x/ J) }! S0 l2 v
: l+ N+ `8 b; g' q% O+ D! s9 Xset-plot-y-range 0.0 ymax
9 U- e, q! ^3 B/ E1 v' pend
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' N( p! r3 L* m* Y* T3 Nto setup-plot2
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/ { i+ J2 [0 M. S% |set-current-plot "Trends-of-global-reputation"1 I5 `8 |+ s, ?, Y1 z/ l, q
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set-plot-x-range 0 xmax
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( K- O/ N7 I, q8 ?6 yset-plot-y-range 0.0 ymax
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& i5 _1 M- x2 Y# {% w
to setup-plot3
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
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6 N3 {' P4 ?( {$ T# u b, c4 G9 Rset-plot-y-range 0.0 ymax T! s. C7 p1 j" ?7 g0 j5 t
end1 f; w9 E/ M- i' B
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to do-plots* n8 Z8 b5 H0 M: O' H' p( V6 j% n
set-current-plot "Trends-of-Local-reputation"5 b( R7 ], v: r9 V7 i8 t3 a/ B2 s* d
set-current-plot-pen "Honest service"
x' }; c1 l- {' R" n: Y! I+ Nend8 H; L3 j0 O b" ?) F6 e
4 A( o9 L, c0 |& X4 l, [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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