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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/ K* m4 o8 |9 D" b
globals[* P4 z% m3 N% Q% S
xmax; P' Y: ]# y% n U& ^
ymax, B+ z- M* o* D' ?2 e2 I t
global-reputation-list" T" g7 U; m* W* u0 r7 o" Z
7 v9 u9 R y( q2 }& t* a
;;每一个turtle的全局声誉都存在此LIST中$ s! B7 M6 e" A M6 c! S
credibility-list; L" Q% \7 B; n, A, e9 b
;;每一个turtle的评价可信度
4 ~/ X* b y2 s' U8 U4 l8 Chonest-service
* B5 O$ I6 h3 }9 j' ^8 @7 F' ?; N( vunhonest-service: n, U0 d: K+ ?: p
oscillation
/ |6 p8 t& `; y8 g! O/ m6 Zrand-dynamic) T( I; B! e2 N& A; K1 g
]6 r* b, K, L* Z
2 t3 M1 p5 a4 X$ B% ~* Aturtles-own[: }! w# Z. ]& `/ h) e$ Y
trade-record-all
/ @0 I& O) k8 P;;a list of lists,由trade-record-one组成- b$ Q/ }: e6 A8 \5 }" ~
trade-record-one
& x1 d, z6 ]" S# ^9 ?;;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 B4 e8 r7 `9 Q N' V& B1 F3 Y& W, a C) l3 f
;;[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]]
# t. W, m) {6 q- K, |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]
1 b" X/ g* p& B( H2 Ccredibility-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list0 D& A) V. g7 [4 C
neighbor-total; }9 }( f+ [5 M
;;记录该turtle的邻居节点的数目" u& g+ q. A0 A
trade-time. c- V3 B+ n* Y3 w$ q( ]
;;当前发生交易的turtle的交易时间
0 L% ]* b2 ~( ^appraise-give
" @ p3 f( Y0 O1 Z# K4 y' z;;当前发生交易时给出的评价: a! P2 X% ~% n; \0 q
appraise-receive; U2 o$ ?% [8 o; z
;;当前发生交易时收到的评价
" o! D$ N" F2 ^) \2 o& {) T5 cappraise-time
9 w/ }! u8 I# A- ` ^) g* Z;;当前发生交易时的评价时间+ }6 [" K- X6 S' \/ Y7 z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 F" p* g @$ D! ktrade-times-total
$ F$ U) K3 U y( Y7 _9 A;;与当前turtle的交易总次数2 Y4 f1 P; m% G$ S
trade-money-total x. j& p* m, Q% Z) \
;;与当前turtle的交易总金额
4 s7 V. u) \4 z' D& Olocal-reputation O; C' }8 {% h# G' P2 Y
global-reputation
+ b$ l2 Z+ q6 ^5 gcredibility
) P- a; c# ]1 G( k. m;;评价可信度,每次交易后都需要更新; d' C7 \3 Y9 N8 f2 r
credibility-all
+ U1 m0 _' A: W;;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
9 i* y5 M% m7 G- J2 P3 f2 k+ v( {1 |3 c) I' j1 z% j
;;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
" I5 i7 j' n2 h- C8 p( M! Ncredibility-one2 y5 }$ a9 O3 V6 N5 d
;;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+ [) @6 }9 T4 f4 t% P3 U
global-proportion
. D7 d9 N+ i- P; e0 wcustomer
+ e( H7 c0 A/ t: s3 Icustomer-no
! V3 P9 R% n* Y8 r8 Ntrust-ok! g7 p' B4 r8 x) ?& V' `8 ^) J
trade-record-one-len;;trade-record-one的长度
" i( Z( Z$ G" d]
8 _$ l9 }( S) L7 N+ [2 E! J+ X d
- |- X7 w$ T: W4 Q9 v3 a( A& X3 Z;;setup procedure/ e8 C9 D0 k. ~ E! ^
5 y. P4 a, H; ?- C# T( u% e
to setup
8 L3 U$ ?, ?2 _% }1 f P- k* I. |2 {
ca
/ t" _6 V! y4 f7 u. H0 F' ~1 z% z5 F( w3 E
initialize-settings
6 S2 ~4 N' a2 o8 E( B% G6 L8 P+ x! J: ~; u! p1 u
crt people [setup-turtles]9 H/ V" z7 H2 f
`1 l0 `' b8 m9 i
reset-timer
" h& b2 Q/ L5 @: z
# I1 |+ n' `3 s a- Y8 spoll-class4 i7 T; y4 s7 R5 o- |
3 d+ B! Z- X2 [/ f( asetup-plots
U2 t$ @4 P& z5 R, w: N( N
- V5 n% t9 Q% \2 m* n; e3 z" c, `do-plots1 m5 N) T0 S. V" [2 ]% i2 N2 l8 \3 E
end* ~) g: L& c/ @' a! @' S( G
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to initialize-settings' X* h2 _: `. J, i' w
$ \# w' x1 w H% H2 `$ G2 ]
set global-reputation-list []: {7 A, z9 o% S
4 u# L0 n, C4 _, @' G- `! ~5 E
set credibility-list n-values people [0.5]
4 G _3 W: |1 M
9 J7 E" V% D$ r" L0 z2 c# Fset honest-service 0. N8 V C. l& D- O# o# l/ Z
2 \* A) V, b9 b3 vset unhonest-service 07 Y. U, s& Y* S7 |; }3 C- S
. t4 k& w% R$ R! _/ [
set oscillation 0
5 I6 h6 e) S7 d& l/ i2 G( d% G7 U( N" U& Q D
set rand-dynamic 0
' |4 s$ s( O+ nend: R. p) y; E4 t$ ?' m7 R& |
: X0 E, c! w/ z7 A; U2 o& c# m
to setup-turtles & t/ e- }. h2 P F- h) f5 c
set shape "person"1 \& l& K; M0 v8 l( O, _# B2 o
setxy random-xcor random-ycor
f5 \6 o- S" J3 Y3 D1 _set trade-record-one []7 }9 T2 {3 E3 \% \
6 g2 ~9 J2 k# E7 X, l% ^+ g3 x% P
set trade-record-all n-values people [(list (? + 1) 0 0)]
X* z8 g& Q% G2 ^: `* \6 [- e9 e1 a/ @! P- _6 @; X
set trade-record-current []
! U: K7 T% y' C0 d8 G! pset credibility-receive []
- h* {! |1 Y5 z8 ]/ o; C8 ?set local-reputation 0.5
/ C( X1 y' V& x8 B7 d+ {7 \set neighbor-total 0
/ M, |' L6 u9 w5 f( y ~set trade-times-total 01 |6 a2 q* S d" x
set trade-money-total 08 l: H7 E; `4 o
set customer nobody) l' ~; c( p# H; p9 }1 h
set credibility-all n-values people [creat-credibility]1 Z7 j. Q" y/ d5 ~: n3 p+ Y+ Y4 W* C; Q
set credibility n-values people [-1]7 }% u$ |! h( E( @
get-color5 o5 z) k' {* Q3 d; e) A
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end6 _+ a: i6 d+ E% G6 r! D
% a( w9 g6 _* P6 q" k- A$ I
to-report creat-credibility: G* g# N% K6 O% T5 I/ u
report n-values people [0.5]0 \) \. ^: r6 M# ^
end
9 o, R) w$ S" O3 e* T+ A0 S7 E9 H1 c: \2 M8 A5 y) n% M
to setup-plots( \4 m- A$ y j* V3 z
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set xmax 30
- e4 Z/ I3 h! x& r8 A6 V q
1 ~9 ]) N- M% ~6 r( Uset ymax 1.00 S- ~& M& q) K1 C2 n. `' Q
7 ~& H H; D2 U, l6 }8 p* Yclear-all-plots% N2 n; q% @ G6 X* P: E0 k; p/ D
$ J$ ]: ~( H$ ^setup-plot13 Z3 i: I- b" m+ i( t
! _; h1 k5 O7 R1 p; gsetup-plot2, K: u$ x2 p U* n
( s0 }9 E3 n4 k# v) p3 Csetup-plot34 a- G5 k6 h' h5 ~8 N
end1 R# D7 a' B. f( m$ O5 \; r
3 f" v2 I) ]& }. |
;;run time procedures, Y3 S9 z: M3 q. _5 J8 U
3 f, o) _9 D% r3 k, e
to go: J! z* j1 c' ^" w
2 ]6 b) h5 P, o. l9 S/ X% ]
ask turtles [do-business]7 B0 q( n& k U! d f) n" ^& z5 v- b
end- p# z/ h {% E) k+ ^! M
: ~$ {3 X: B5 A3 v$ P# H! v# Y; U
to do-business
7 C7 I4 K1 w& ^) N2 t, Z) c, _* Y# [
" a; t& M7 ~* [2 i' Q
rt random 360
$ n/ U' x% a0 ]* D2 C6 m5 I5 x1 g! E
fd 1; t# j1 _" a# ?9 `2 s
2 `: O( Z1 c5 M" V1 W3 J4 yifelse(other turtles-here != nobody)[* i" d) f+ N1 q! \( {& l0 S2 {1 E
( a |- M5 k5 S" ~3 H7 a8 \set customer one-of other turtles-here
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. s; @. ~. a# ~% F8 Z$ `. f, y;; set [customer] of customer myself, b, X( C) A2 y: }4 A7 X9 m
& S0 A r1 d* Lset [trade-record-one] of self item (([who] of customer) - 1)
! @# j7 ~: a6 K- ]0 U[trade-record-all]of self5 @, K! K' }6 Q8 G* j0 a
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# G& p0 n' [2 J$ l* H
' M( s5 N3 `1 @- z
set [trade-record-one] of customer item (([who] of self) - 1)
# w5 b# ?+ q1 t( f; B; S7 r- C[trade-record-all]of customer
- E9 z2 _) c' |% \: {, I* o J
- ?+ O1 i" b5 D: d4 {4 \4 Kset [trade-record-one-len] of self length [trade-record-one] of self$ `$ D' T0 e+ R4 I
8 w6 y% f# z8 B# |( jset trade-record-current( list (timer) (random money-upper-limit))# d8 ?$ n7 Q, h: w' O% x/ ]
& n; Q1 s2 [ ^4 x/ Hask self [do-trust]
* a" x1 `% a& E! Q;;先求i对j的信任度
' n7 P. U, ~ j
6 y' X: j o+ D3 H9 L: dif ([trust-ok] of self)1 K2 L6 ?$ f0 p$ G
;;根据i对j的信任度来决定是否与j进行交易[: b8 m& o5 z: ^5 }7 h! g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& X; T$ |) {$ w" R/ m ?3 A* s
( k8 B! y1 c2 a1 v[$ w! V T+ E" \+ a4 k/ k' r9 \+ ]) \
b; x+ J+ N# p i2 V6 ]7 W: H
do-trade
6 |- C/ g5 {; x# s/ B( F8 i5 U, w/ n) U" A5 F
update-credibility-ijl) w3 q2 }: S1 Y; E1 {& M H
2 C9 L2 @9 `) S7 @; H0 X9 ]update-credibility-list4 }" w& t" z* x) j
& o( I; _) {0 N0 D
) V% i4 _8 C* Y2 hupdate-global-reputation-list% N( K# j- E8 {
9 f" `3 I/ T# G ]$ i7 ]8 u/ u9 _poll-class% O# r) d. M `+ a! U, ]0 o. S8 ^
: h7 g0 t! A, e cget-color3 d% O! B7 G! W% h) h
" T' A- q6 f+ \4 R7 i6 m) W! U
]]
. m0 E- r4 d4 a" r7 m \+ u
! K* j5 Z. E7 J1 B: \;;如果所得的信任度满足条件,则进行交易) R0 U/ m' [0 X6 e+ n- |
# A* ?" d5 {) |$ K5 i3 S, r, n
[
! w* _/ p( |3 G2 G8 Q. Q& D# G: T- I+ m+ v! k) \3 w
rt random 3605 ^! a' L4 B: ~6 P6 Q7 ~: \
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fd 10 {) v, f5 m, b R. M# V
/ l) O% Y& q2 T* M: O
]
( j* T' V: ], W6 u/ z6 Y% A5 t. J# N
end
( S) a% {/ S/ q! e! b* H
( ^# `) H# V1 f& @0 H* {4 jto do-trust
+ L: f0 D$ |6 z& ^. Nset trust-ok False
! S k% @1 n; w9 T, J6 V8 \0 E- r. {) u1 R
. x. C* f+ H/ vlet max-trade-times 0
! f8 t* {1 q( d) q% \foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 @( S# r) S5 _! g8 U# B& k/ Q! |/ C
let max-trade-money 0
& P0 h |6 T- Zforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 T9 q, K2 m( j7 q+ s) ~/ Z a. U ?let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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. Y: ~) S, ^% p# ?. H2 j
get-global-proportion+ H( s4 v/ e; t8 j, {6 `- X: Z" d8 A4 i
let trust-value
, ~" V6 H+ a% Plocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)- w/ N- y8 K8 {; j9 s3 P
if(trust-value > trade-trust-value) N) n8 {7 \& F V
[set trust-ok true]
$ ~ F3 m1 m" t2 s/ p0 m! P# Rend( \/ `" P( V0 `5 o+ |' t* E* v
' l3 {$ X% w& e9 e5 J& V. B t
to get-global-proportion
: a" T5 f! P: V% B4 q: nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
6 Y3 N6 u) V0 @" x: S) K0 l[set global-proportion 0]
! S$ b. d* U/ y2 Y2 l) X[let i 0" D2 l) f* N. D' D" K
let sum-money 0
7 g) [9 m+ d! s+ o. g* i& gwhile[ i < people]
, z# a3 T. d' Q$ N& L8 w[
F+ U: e8 f- c9 _" g% f0 K! C0 Pif( length (item i
$ |& i9 q7 w$ U! \[trade-record-all] of customer) > 3 )
- l2 S/ V3 e8 L; g C1 H0 e/ \[9 d( F \3 y8 ?+ I. b4 @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))" V8 D+ g5 N3 ?) Z
]
0 \" h$ {9 a8 K, s" [! |$ _6 i]
2 }3 p8 n2 M2 R* b) Tlet j 0, u" V1 F. H i% ~& y
let note 0
. G6 P% t* L4 t! s) d" q- h. |5 \while[ j < people]
, Y" _8 _. B$ e/ B[/ ?" `9 u. I4 f: Q4 a2 p
if( length (item i
& u7 t9 [7 E6 a[trade-record-all] of customer) > 3 )
: y0 ]) W. Q: R6 x9 A[2 n/ [$ x" B3 M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 _/ W/ d" I/ J1 b6 p# |$ T. m
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 p2 j6 N' j6 w8 _) Y/ ^. {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ u' @5 |" T& k4 I; [, \( f]' e( I3 c. t! o/ \9 E
]+ T: P8 K5 W7 B7 e9 j1 D, o
set global-proportion note; ]+ i+ S+ b2 e! R4 u H& ~9 a
]
7 b: W' U, p5 L0 B7 ?9 Nend- O+ ~9 @, R0 d. J( j
& }& M$ g1 a6 F& K0 S
to do-trade
0 w$ G2 z0 |9 f1 D, h& o" R+ A# ~' A;;这个过程实际上是给双方作出评价的过程! l- ~! j. S# k! j/ p3 K) g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 m0 u8 I: j$ o2 u& k! x3 D `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 H1 ?6 m) S& P6 L: y, A2 Yset trade-record-current lput(timer) trade-record-current
0 ]7 d, ]' K- O0 w) }3 h;;评价时间) g4 ]8 [/ `! K+ @" T
ask myself [
* z+ g* l4 S4 Z0 V# d5 N0 qupdate-local-reputation5 B+ b: a$ `' r
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 P1 N7 A2 ?; O) q9 l]- ~2 Z" Q6 r) D! T. t( [; `! P
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: t- M7 d; u2 v2 u' N
;;将此次交易的记录加入到trade-record-one中
& C7 }: X8 _+ Lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself); f( ^2 J; O! Q+ q! M# M4 d
let note (item 2 trade-record-current )
4 v# M' T: _& {" e* }8 Pset trade-record-current
9 K6 K" U, K; `4 N: d(replace-item 2 trade-record-current (item 3 trade-record-current))
4 N( V [- o' `# ~2 ?set trade-record-current
, M8 L# ]" ]4 y+ c! t% T8 y(replace-item 3 trade-record-current note)2 `! X, h$ P; ]6 |
! E, P; ~2 \8 ]
- U+ i3 b- Z+ p/ E9 r' ]; Nask customer [
. }( B f/ g+ M2 b* zupdate-local-reputation( X' ~" k- ?1 M' O
set trade-record-current
) U7 }* E& R1 q, `(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 n2 B) Z+ Q% E* V7 [! _# ?4 z]" E6 s8 z+ x0 J1 C- N6 m- J2 X
$ [( K# h f. E X" ?
! d) `+ b0 v9 `0 w3 K1 D& q. Q
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; S% B# J1 L% {) ^( t
0 k# p1 ~ z ~* w* cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( r# [$ D1 ^& ?$ a;;将此次交易的记录加入到customer的trade-record-all中8 G! O5 g& s8 k1 \1 v4 H
end& l& M+ y3 h1 R' L; C
( W% r4 P% x2 hto update-local-reputation
# l: R4 ~0 |- R. ?set [trade-record-one-len] of myself length [trade-record-one] of myself
- w* X) q1 \" o3 Z
" M `6 N: d- o8 x; a9 H' K0 ~3 w7 N0 @% l' x; [9 p3 n
;;if [trade-record-one-len] of myself > 3
/ g$ @% K7 z% t/ M3 ]update-neighbor-total
" j9 j, T- c* q- ^;;更新邻居节点的数目,在此进行9 ~) W1 K& p* J( P+ i$ n/ t
let i 3
) n1 ?( V8 i p9 a: zlet sum-time 0
2 V1 G! ~7 u; K7 zwhile[i < [trade-record-one-len] of myself]3 o4 W" F+ n6 ?3 U
[' p3 g1 {" H+ Z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ G* E c8 @% H
set i) M2 M! ]3 I6 [! U+ h- E* ?
( i + 1)- |4 [$ V' q4 E
]
. f$ _6 T8 a! H0 y* ^+ slet j 3
4 a6 I. O# g& p, @let sum-money 0& R( g! L- h/ D3 E
while[j < [trade-record-one-len] of myself]. `& p; @! y( q$ c& Q6 A
[( G7 ~* \2 t& Y5 T1 z
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). D8 C; A( S* n/ z' p
set j. {; v6 F$ ^3 E3 _
( j + 1)
( w0 l8 x* E6 U]
; {9 Q. ]9 D4 X: Plet k 33 m+ {' j8 p, j* ?* J* C
let power 0
B# ^, K) p/ D5 Hlet local 0: V& V- c; V. r& Y
while [k <[trade-record-one-len] of myself]* ]; d6 b6 C5 u7 @
[
& {7 W% G) s- C( \/ Kset 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 ~7 t& ?+ Y- j0 a. Uset k (k + 1), r! k9 U9 }( t; w2 C
]
8 q! o$ Y, r) U: t- Rset [local-reputation] of myself (local)
; n( X& R' |; S" q/ t' ?3 Fend
; w4 \! R" s2 I& f% b5 w D2 ^4 x) n8 m+ R, p& |
to update-neighbor-total
8 _ |+ M( H! a# x- B; }& V* \" L& G( T* ]
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# k- p1 `6 {2 k& d* I
. C& {; a, L }+ k
% ]: y" |0 c- o: z
end! z0 f! R$ S# S) F; C. _ ~
+ ]: J! I8 a* L% G
to update-credibility-ijl - l2 P: j3 q8 l
2 R- I( C R! F+ w. d- O9 ~$ g
;;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。4 \. N1 w; }0 T
let l 0# o9 u, \4 A5 K5 `& q$ @
while[ l < people ]5 |0 F. W4 S) c; o+ S6 }
;;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
, J8 u7 E. O2 O+ k. Q; O6 ~! \[
$ Y% @5 J5 K& z* Z" Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 h( D7 A$ P6 \% E8 z4 O6 [if (trade-record-one-j-l-len > 3)+ g6 ]2 O! x7 x0 T! B/ e
[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
. h+ q7 B0 r: m) [( T5 Tlet i 3
0 ]7 p1 q8 U) @9 s8 U5 K2 q/ Mlet sum-time 0
8 c/ J U: ^8 Wwhile[i < trade-record-one-len]
8 V4 K1 B* s5 g* D( D% Q2 C[
* q& D4 m3 |7 A7 O% fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 E' V! ^5 E3 O" p9 @
set i
2 ?7 Q7 R N- X0 W" Z. L( i + 1)
3 O8 u g2 C% `% T]. e$ t" s3 l& L- ^+ M- E5 k
let credibility-i-j-l 08 x, u& d; o5 S* h
;;i评价(j对jl的评价)3 p, w- ?' t) r/ v- |. }
let j 3/ J5 k7 u) r/ O0 f! {4 I
let k 4* c- W3 G/ Y. z0 m/ l
while[j < trade-record-one-len]
! w6 b, }% _% [# f[
$ B# b1 B# r6 O& f4 Y4 _" _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! a7 T7 M) U& I5 Z
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), [" ^6 @) ?/ V/ n) X1 w |9 a
set j
2 R2 {) C! Z8 J* E( j + 1)
4 h/ F- i: w; S# Z! w. e]
; F" r! c8 N9 c8 [" ]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 ))- Y2 O0 }( T% u! |5 \ @6 c3 W0 Q, g
6 V3 k/ j0 m. Z$ W7 S! W1 p
8 Y: J/ e8 [4 C' {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))$ _% l/ N) e1 m
;;及时更新i对l的评价质量的评价
' E, B0 t# {+ S5 ?4 kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]& C, D* p: ~& [! y8 m
set l (l + 1); t; y& @' F7 y
]1 n9 S) W1 k* g# @. q) C1 v1 J
end. w- I- z0 n! w& \
- S; {0 Q9 i8 {$ s1 U4 p
to update-credibility-list
: I% y7 b' c7 G/ `0 Ulet i 03 |3 c* T: K" n* k {
while[i < people]
. |& e" b& Y+ @- x( R- q: z4 p& d[
0 K* v& U6 {6 y$ [# T. v! x. Mlet j 0
5 w% }. e8 ~( G- u: K% @let note 0
9 d- ?( z* `+ N) k. flet k 0
3 R A' _/ I, {; N9 z;;计作出过评价的邻居节点的数目# u; C7 J! k6 ` }% I
while[j < people]
+ g a/ I; @. f) H2 @( T[
$ N7 w6 K6 `9 E* rif (item j( [credibility] of turtle (i + 1)) != -1)$ j( y( |5 D% {& A4 y
;;判断是否给本turtle的评价质量做出过评价的节点
# F, c$ P3 b7 z" k* Z& X" s, B[set note (note + item j ([credibility]of turtle (i + 1)))
3 Q2 z, A6 z' j6 W9 r* \;;*(exp (-(people - 2)))/(people - 2))]- C6 p; X3 v2 v0 J9 q! S* |5 B
set k (k + 1)' t0 ?/ s* A9 [4 K
]
0 p# v3 s% p" I5 r$ L2 m3 ~& Oset j (j + 1)2 D5 f6 h' u7 S" Y1 a
]4 J) y) P' a6 A! h/ `
set note (note *(exp (- (1 / k)))/ k)$ X% _8 H. M0 d9 ?5 y
set credibility-list (replace-item i credibility-list note)* l. w1 y6 X5 E
set i (i + 1)) b: A$ \( l( H6 t8 a1 n8 s1 X; o
]
) C) @( u* }) p$ I& Wend
% |0 S! i0 i: Z4 N# f2 I% m c/ a+ P$ v* Z2 D$ Q: r
to update-global-reputation-list
; X1 T$ L% b: t/ G5 klet j 0
( R- _' a# w4 _while[j < people]
$ b% d0 S- l4 p" u: v3 B' ?[
) M- c4 F4 j T6 @* ]2 C- hlet new 0/ ^% z8 p- c5 m
;;暂存新的一个全局声誉
5 Q6 x' A3 w! m! W* {let i 0
" C c- l+ k, I% K2 Y7 b% Elet sum-money 0
D. K' a1 F) w& e. R$ vlet credibility-money 0/ B6 I6 A8 J q' t" K a$ J
while [i < people]
- N7 q; j" v5 s" J6 [; g, q[
`0 l2 \$ ], aset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), t, D2 g' [8 s/ H. C/ `) h: P" W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 E6 P* @7 K# \set i (i + 1)2 d, m8 o1 {" d4 ^ _, Y) f# Y
]
" B" a4 I q- }% S3 O! o% o8 Alet k 0
" }& b( Q6 |' D0 W& c G Jlet new1 0
! A; M; Z' \+ C" {while [k < people]# D5 l' k f X3 R K$ K# M9 Y
[
8 N3 D* S5 E, { p( uset 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)
" w) K) O* F- E) L. dset k (k + 1)% i3 k: I' z9 A+ u% _- H
]1 V! W9 D" `3 @% \$ o: P
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * D6 v. S" F* b* k
set global-reputation-list (replace-item j global-reputation-list new)6 g& |' `( s+ q( W* k( L) f
set j (j + 1)3 l) o. w& C, Q- h# L
]
( L G8 l" U) Yend! i7 E+ P2 x3 I% A; b+ c' N
5 H8 S" P$ ~, J# H0 i
7 v6 Q2 L+ Y6 k0 o- p7 ?( a
1 l. b8 E, ?& [
to get-color
3 s1 [( ?* Q/ j# }% @. G$ A) w2 v! H, k$ s4 g4 K( G U
set color blue
1 a" b7 j: t; K( Oend
! F$ ` E2 z' `' m; D u% @3 r' G" Y* c% O' K$ I
to poll-class
" u' i1 e, d- F# _$ P" x' A7 w3 s+ @end+ I& w0 w* [2 Z7 R9 v
+ I; M& [! N2 W5 l
to setup-plot1* Q5 [/ I, I2 P1 Z
/ b, _6 l: V$ O; J9 L& ]$ m+ N7 y% O
set-current-plot "Trends-of-Local-reputation"+ S: @6 D1 n5 r2 m
C- {0 P" v; \
set-plot-x-range 0 xmax% r& i9 ~, W+ G& N
+ k( w9 R$ V' W. g( b% } ]
set-plot-y-range 0.0 ymax
+ v0 U$ k! [5 ~7 \& S3 }end
/ T& q2 Z, ]9 j$ _
2 F) B2 }. s1 m5 D: P5 W6 l6 \to setup-plot23 ]4 H- x" a9 _1 ^% [
8 e( s- d9 g# }. Tset-current-plot "Trends-of-global-reputation"+ z6 s. {5 b/ `
2 h l, Y! L4 p! h, }set-plot-x-range 0 xmax
! {- V2 j) W3 r; R
; G8 A( Z6 D) ?0 H, kset-plot-y-range 0.0 ymax O/ W; a# s$ F
end
2 y- B9 ?8 Y+ |* K- F* x, J- k7 w- H: x4 Q
to setup-plot3
, V" Y; @; x+ O* ]/ I7 y% ^8 m
+ ]! W8 T5 t2 fset-current-plot "Trends-of-credibility"
5 t# R3 B% g3 v6 {, F
5 v5 l8 B, y$ J0 X; B# T cset-plot-x-range 0 xmax
! g) F5 J( m9 j ] E/ `/ r+ D A7 i
set-plot-y-range 0.0 ymax
! ]/ c- f2 n; H# c: Y) xend# S% `, v' v8 O/ q: b9 o1 Q& l5 m$ j
3 E; l ]0 ?/ x
to do-plots; M1 `* q6 ^* C: |
set-current-plot "Trends-of-Local-reputation"& ?3 z1 m; ]) X# t
set-current-plot-pen "Honest service"5 T0 v. L4 ~9 x$ U
end a$ A- A( B' z( e
+ Z+ l( d! J1 ]" g
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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