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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5 o. f! B3 q, x# w/ H9 q
globals[
* a. r- U, Z4 m8 ?0 _' B5 n. C, i% Ixmax
* H# \& i6 Z% k. ~ymax
( g9 K5 O; f+ `" j, {/ dglobal-reputation-list
8 \" `* Z- s/ ?5 z7 r1 l
$ M; k4 L- a( B: c8 g, ?;;每一个turtle的全局声誉都存在此LIST中" i' l$ G4 V1 m
credibility-list9 p( s" y& b, G0 Y4 N" T. l
;;每一个turtle的评价可信度
8 D$ o! l6 D5 g4 ]0 L" _2 N2 Chonest-service: Y# C$ R4 U) R8 x1 b' T( E% |- o
unhonest-service" r- R) c, o4 f8 {
oscillation. W6 m4 ~8 B6 n: T. @- F
rand-dynamic$ |! a7 [9 D- t& g
]
; v, ]+ e$ s% B6 x0 x. v% v# }* U/ Y9 ?: B( j
turtles-own[* L- m) J! G; k9 z# J
trade-record-all
! A+ n Y4 ~+ T$ }( F8 l b u9 \ U;;a list of lists,由trade-record-one组成
- `$ \, r }# U# qtrade-record-one: Y* m+ r7 S4 L; G
;;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% I5 ]' q" W8 n% F1 j8 m- u# h1 G4 e, 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]]
) x# t$ l1 p4 u0 ptrade-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]
( D% ^# B, e% b- ^ w N3 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( q$ m+ _) `, a
neighbor-total6 B" f, G v& I9 G, i* n
;;记录该turtle的邻居节点的数目5 L- S- J9 n& D8 h, M$ }
trade-time/ L8 ]& A5 Z% d; }5 q3 ^# I+ f
;;当前发生交易的turtle的交易时间
S$ g! f2 f& Kappraise-give
7 F1 z: S8 P! f$ N/ I" \;;当前发生交易时给出的评价
/ ]+ A2 @, H6 u, Tappraise-receive
3 r# o7 W( Q. k7 _9 A8 e;;当前发生交易时收到的评价7 e( E- Y, i* m
appraise-time* d6 H" |" I2 k" z0 h
;;当前发生交易时的评价时间
& m; q# w3 i: }0 x! L Z$ F! ]6 E' @local-reputation-now;;此次交易后相对于对方turtle的局部声誉
+ w! o( L; s) wtrade-times-total5 v: f6 D1 }( i. ~5 y2 ^& H
;;与当前turtle的交易总次数# K" U) J) D8 K
trade-money-total4 c# \) O/ E# e( N4 a% i; Q
;;与当前turtle的交易总金额
, [& _( I' J3 \4 V! @6 [local-reputation
% T1 ~8 ?5 F( @ t' s1 b( A0 `global-reputation [. B0 {# O6 p; I, ]+ o- r
credibility
: {2 ~; t K' }- z) q' t;;评价可信度,每次交易后都需要更新. \) N8 Z* c0 p5 [
credibility-all
/ p, }5 p | x' W+ D;;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
$ Z. R H" A0 o# F- Z$ }9 ~; i6 ]! ^+ g1 U
;;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 y. W. n4 ~0 ]credibility-one
$ n m. j: u8 g7 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2 R$ L4 K$ B1 w0 N) x1 t- q$ a
global-proportion
, c% B( N2 c- T0 A8 N* Xcustomer: b7 w3 C9 S# u/ ^/ [
customer-no
* W, @" }7 V; m! J9 P5 Etrust-ok
7 I! L! {! s+ u Q" }2 P; z7 q/ k" Ltrade-record-one-len;;trade-record-one的长度
' \" ]8 _4 ^* O7 T]
' f0 r1 r& _/ Y ^; y6 G
) O; x2 U( R& V3 M, t;;setup procedure
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to setup
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ca' E) s' {% [5 w/ [: d6 b1 Y( {
' h- ?# q5 r2 C" f8 H6 g1 }
initialize-settings% L) Q3 i. p3 V( x
: B5 l1 A- f' g! E0 K# c* a+ y; Pcrt people [setup-turtles]
( r3 n" r) f- s1 x, W+ ~- e
/ m' `' i% H$ H2 u$ freset-timer
, a( K" Z, K* N( W, [7 [: o9 z8 ^; a* j3 X. a& P' k* i
poll-class
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setup-plots
+ w3 i& n# f5 V( p3 b) W' F a6 O
do-plots
6 T- ?3 T4 N1 l5 t9 Kend) X0 M5 Z/ S" `! Z+ z
% J# U/ v1 n4 }# W: o$ q
to initialize-settings
/ u) @. o# A- Q! K) T2 J7 W: L: G( r& s, a/ R+ i( g
set global-reputation-list []3 r4 c/ {* n' y
/ b/ s; u. f, |: rset credibility-list n-values people [0.5]
4 J' w4 P" B8 N* H" T! A5 o- }4 h# ~" n* N- ], k! S8 c) E
set honest-service 08 O3 f/ ?) J* i- V
6 K0 S6 G2 u" @$ g( p; Hset unhonest-service 01 L: X0 s4 E2 J% d, [3 n
, S! @: T% L# ]& |& i7 Mset oscillation 0& d* t# m2 v6 c8 f; c; B
& Y0 _0 {/ T, s7 A# G
set rand-dynamic 0
/ W) ? j; S8 A7 Y4 w% w6 I' d+ Mend
3 \( q/ ~* C% s2 P& W( b. t8 |: _3 Z3 y9 l' p2 B' B
to setup-turtles 0 h& \4 {1 X2 |% I% L/ a
set shape "person"
: n! C* E# p, d7 U$ J7 Y5 isetxy random-xcor random-ycor& U1 c4 d4 G6 `# J
set trade-record-one []( N. w% G% I7 c$ N( o
5 C% S/ M8 F* uset trade-record-all n-values people [(list (? + 1) 0 0)] - j- t9 c7 [) G, G# S6 }/ E
3 Q& `" B& _3 X% q+ x& O% W+ j4 \: vset trade-record-current []
% I$ v6 T) C X( Zset credibility-receive []* v. c: Q1 x3 Q9 ]5 A5 X
set local-reputation 0.50 W4 ]9 j- \ L$ O8 b
set neighbor-total 0
/ E6 a5 a. r- e4 Bset trade-times-total 0
7 Y; l. h8 E8 v8 P5 oset trade-money-total 0% O& S, k9 u Q. }4 l; V
set customer nobody
' _6 Y* u# {' `# Y. tset credibility-all n-values people [creat-credibility]
8 {( Q# }: |- ^, ^) {" r# [1 hset credibility n-values people [-1]
, e* i+ }! F. I0 @0 I% g8 Tget-color4 R3 f# g+ `; O: e
( O6 Z( p) I2 G& n' e0 ^end, j! F* ^1 l6 i+ T( n! q
0 D3 \$ f, H; v% q& z7 a: v1 {
to-report creat-credibility
3 n1 g; @5 S6 `: R7 J+ Rreport n-values people [0.5]5 x d; @# v! A, I
end
: o0 {) U7 C9 u4 q4 M
. |7 H, U& H4 zto setup-plots% u h; P- S. W1 l& [2 c( V
0 U# B7 P- N3 y3 Fset xmax 308 f l- Q: t5 o5 ?
- ^& M2 t1 w+ P: c3 h% V3 tset ymax 1.09 B7 q5 l! f7 P$ m
% m4 v" ~, x1 |0 I( k, G. `& ^
clear-all-plots6 z: N7 _% q8 n! E9 F
9 ~7 ?2 w4 N* L( X q7 fsetup-plot1
* o q' e: w" w1 w4 _
+ ]" D' e v/ j# Vsetup-plot20 v, y2 t/ D* M U
; R8 G$ P2 U# k' d9 b4 B
setup-plot3
7 C ?( x" p& v$ i! m4 p/ T$ Oend8 t- }; ?% ?) x i1 }; N/ W' N; F
+ W5 g& ^, ^" o/ j8 W. y
;;run time procedures
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. v7 n0 @2 T- M1 }3 f8 J2 Vto go+ }0 z. d4 r/ I- c: d- `
K. `* T9 C* ]; ~4 Jask turtles [do-business], W: k: G ~2 K
end
t4 P. s. r1 j, s
) M( ]; ?6 |2 m4 d! Gto do-business ' K' _' O. n, ]4 S% c
O" f" z& m6 {% y4 u3 a1 E- C( S
4 |/ [; L. b1 J Art random 360+ }# ]7 m" W1 a f
4 y" w5 [# m$ j; E Z( c: \* m- H$ _
fd 1
3 j7 @6 [( o# N; m H8 m: g( m! V) G
d$ o z/ P0 e2 nifelse(other turtles-here != nobody)[8 Y% R/ D2 J5 {6 S5 B I
0 _2 E" `; o) A& l+ b: E7 E% q
set customer one-of other turtles-here8 L5 L' B$ g* p' G1 \* \
% |4 p- ^0 T) } {3 M5 c( |
;; set [customer] of customer myself# Z& n+ C! B% v7 Y* G6 b& t
* i. J4 n% d! o5 ~- I
set [trade-record-one] of self item (([who] of customer) - 1)! A8 M; V0 f/ a/ ?- {. F) }
[trade-record-all]of self
4 R( o; P! W$ s. H2 d8 i;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ i& ?1 ~& K6 H3 |1 J- _: P
+ A5 S, E$ [/ I; M' sset [trade-record-one] of customer item (([who] of self) - 1)% m, b& j. p0 O2 A( h
[trade-record-all]of customer
8 b X4 }* C( b( z# c" ~- y+ _) R8 v6 e( t2 o
set [trade-record-one-len] of self length [trade-record-one] of self2 ~' E% [3 i) ^. [7 ~* ~+ G
% k' x3 G3 p6 z1 X0 s! i) s0 g
set trade-record-current( list (timer) (random money-upper-limit))
. M4 i. _, D! i( E
" z5 o, s* x/ `' D$ N4 J- d# Hask self [do-trust]
I' f6 p1 `. Y8 `: f1 l;;先求i对j的信任度% P: `. Z" I! d" P
: i9 l' D3 r2 C4 iif ([trust-ok] of self)
! `3 S6 k s# r* B# };;根据i对j的信任度来决定是否与j进行交易[' l3 i6 q! W5 L- N8 b
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
Y/ G$ S+ `/ x
) j6 f" K1 X7 M' Q' M7 G[
7 p9 p- x; C2 T9 l+ Q7 D, Y8 c* x+ a* u) l/ `. Q' G/ O
do-trade& w- g( N9 W- P8 J
* {( |+ z, _& S( }: X0 e8 a4 o4 }
update-credibility-ijl( ]1 m$ z; p. X2 t" R+ `
4 c- p4 O8 b1 Y! s& uupdate-credibility-list2 U" I: B! P% i0 ~! F
' V8 B' D* g* y) u( H
- v. E, ?* B/ k+ Gupdate-global-reputation-list
, W" q5 w" a* m+ k2 L' o2 B s1 Z' \& W9 ]$ @& e: i
poll-class0 x8 e) O; f. ?/ D0 O4 q. `3 T
! U/ W' P4 O% q" V: P8 R
get-color9 k$ ^9 W# J- m5 `5 ^: b/ i
$ i9 P! `* b# K% V# ~0 k: m* X' K]]
4 \6 B+ c9 O* t: _0 g
; a7 K) i: E: k5 R& T+ Q$ G;;如果所得的信任度满足条件,则进行交易
; H H) `+ \+ f0 k
" { n* I8 y( b1 {' X( ~+ S. n[8 r8 d, t8 L; i/ O% A0 c
! v" M) _' s0 v. ?& Mrt random 360( q! y$ ~2 m L! U4 P" C
$ C6 F. v I+ W4 Afd 1' [5 L6 w" w: Q: Y L
0 ]2 d5 p! ^8 a- P. V
]" a0 i5 u ~( T' `) N8 Y+ w& q
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end6 x6 H5 g& E8 a
% |. N, e# s) ^6 f& g) B; _* L
to do-trust - @* u; B5 X. X$ R6 C/ Q4 V
set trust-ok False
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Z: N' D8 A6 Q: D( w- y# E8 i( \ ]5 }9 L+ ~8 F
let max-trade-times 0
( ^1 G& `" h# o# c8 Yforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& o4 {3 Y+ c2 z& m. O8 h: T. }let max-trade-money 0
o* v# q# y8 h9 s" D$ Vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 |, H2 x: w6 {# [2 s) Y5 n$ Q! q) s* \
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); V, Y4 A2 p0 ?1 i5 B! X. K
' L2 m+ ] e: g. s/ [2 O; d6 q' \4 d6 V# P/ P1 p) |0 V# p/ b% a
get-global-proportion
/ i# g) k2 N1 L# \( g u( Glet trust-value
+ U, X' Z Q, Z3 R" N b4 Llocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list); l Z! @: O9 U6 O* [8 [& M+ r
if(trust-value > trade-trust-value)# }: N Y( h5 W) P( W8 x0 c
[set trust-ok true]6 N7 S o6 h6 L7 x
end
2 R) k$ d u+ A4 I! j. [4 S" ~% v( V0 u u: r7 x4 Z0 Y8 @3 Y! o
to get-global-proportion% y" o4 K! F9 N$ G4 ~6 k: ~7 b. c
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( ~, X9 F% K$ ]8 ^# r4 f$ h0 q
[set global-proportion 0]5 [) Q7 L- m; S' C" ]- y
[let i 0+ y+ ~1 p- u- c4 X3 l8 t
let sum-money 0' n9 K3 x% x1 d- g) k
while[ i < people]
: H: ^! E( V A[
7 K; V S) b1 _9 wif( length (item i
9 ~9 \& u @( ? a- o[trade-record-all] of customer) > 3 )
3 g( ]" @, _& Z% z[8 E l4 d h! h! f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# A6 g( u" u: e* y) x: L% @: h# j
]
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5 h$ w4 Q6 U" h! C* @$ N' Vlet j 0# r# p. s7 Y+ v8 Q/ k8 `0 i5 d# c
let note 0. B* V. r( Z9 x3 ?& i4 f/ _. d
while[ j < people]% f$ {, Z+ a8 @0 m7 @* g
[5 Z3 `# _7 `- I0 \& j% P; R
if( length (item i
$ K5 {* }; {9 f" n3 [[trade-record-all] of customer) > 3 )( b% h4 J( a1 x |: B' P, {& M& m* Z
[4 [) @) B0 x! s1 T
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 `/ a/ |8 q" K
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 M) |( {8 _2 a) ]# O
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
m$ {5 x* L! q a, u/ l' g]& L' I4 L9 E; Y) [9 H
]
) p4 X6 {; X% L; ?- Sset global-proportion note' ] _2 q5 N8 K6 |: B6 |+ z# \
]/ O) g% ^0 G/ B. I
end. @5 u$ B+ E; h8 j" a4 E$ ]# @
$ B! x, S5 G, wto do-trade- p- h* M! R; H. M3 y
;;这个过程实际上是给双方作出评价的过程
% w: P) d3 ~1 l3 g& }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. f1 g% F# G6 ~* ?: d$ E
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" Y4 S$ t7 C0 W Cset trade-record-current lput(timer) trade-record-current* F5 O$ h, H8 c! d7 f1 ?/ ?
;;评价时间: f% B3 n, f) i" s. P7 D1 t
ask myself [
- M9 d& N( ?: Wupdate-local-reputation
K7 h1 \0 m/ |& d/ E: D4 xset trade-record-current lput([local-reputation] of myself) trade-record-current# i2 f5 J. X4 J- i" Y
]6 {+ T! N8 S. F* K' k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 j) f, O" W C# @
;;将此次交易的记录加入到trade-record-one中
5 @) L: i: ] d/ f) p. [0 C0 X0 E$ q7 Hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 L. @9 _0 t9 ~) w) c! {( k
let note (item 2 trade-record-current )
9 k# f" w7 |& }3 n5 d) @! [set trade-record-current
* D3 e5 ~! ~1 e/ x5 ~) A- i(replace-item 2 trade-record-current (item 3 trade-record-current))
, [4 C; G- _. [" [, Q1 pset trade-record-current
5 V% ?" p, a- Z% z: O(replace-item 3 trade-record-current note): ^) l: \* I( w
, t& O" S% q: _+ } d# W$ K, S2 C5 ^8 g! m6 H, A- _
ask customer [
5 ]+ V+ S3 _6 p# U9 l% c5 mupdate-local-reputation) Y Z8 n6 y7 A k" L
set trade-record-current+ m0 A1 b6 b- j. p) ]. B
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 7 Z' A8 ]2 u* n' ^ i: b
]( B, j9 Y: s# T8 B4 z3 F
$ `9 g6 y1 R2 f9 r4 F* Z9 l( c1 N) i7 _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- k0 E" ~( ]7 S$ A% e1 H- M: [
+ v7 }& Q( u9 j x$ A+ W! a. \set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( ~1 I# A& b4 ]/ {;;将此次交易的记录加入到customer的trade-record-all中
# F& o: f1 U0 F1 B9 H3 tend
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to update-local-reputation B' E4 |8 {. H/ ~( N
set [trade-record-one-len] of myself length [trade-record-one] of myself
8 v* B1 o1 B3 O9 ^* F U; q2 W) i: s5 e/ a" B% B- _; v
- u. f4 A- f) \ I* a. l
;;if [trade-record-one-len] of myself > 3 ' Q. C* U6 y, b/ F! R4 ~1 y
update-neighbor-total: z3 N& k& m# Q
;;更新邻居节点的数目,在此进行
# F5 x: S& N, w( _6 }( e: r9 Jlet i 3. {8 e) a7 s4 n+ ^
let sum-time 0
% z7 S# }2 H) z7 h1 I( n ywhile[i < [trade-record-one-len] of myself]6 r& A4 n2 E3 e F i
[/ h9 {3 ^" X$ P8 V4 T/ a
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 i9 T( @' K8 ]; Z( J. F9 H
set i
& y6 B3 ]/ r3 j0 F( i + 1)
5 [" D; B% @0 v]$ c1 d U( H$ v1 T9 q5 _
let j 38 a' t4 s2 p! T4 @/ [1 ~% ~1 p
let sum-money 0
9 S0 E8 H, h* \; |while[j < [trade-record-one-len] of myself]
# C% ^9 z6 r, t# f[ l: S# K7 y" b# X9 C
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)9 E# j: g6 H/ l) ^" K' f- B
set j- W6 g7 n- N) h6 g5 m" X1 F
( j + 1)/ e1 p5 C. u5 q
]. l! R; I, b- W9 @! e
let k 3% n; \5 ]- i. r6 _4 w' T, c2 H
let power 07 j6 Q2 A: k5 B; r. e3 q# D0 j
let local 0
6 V1 c4 Q& f+ J6 L( bwhile [k <[trade-record-one-len] of myself]' Y& O& K$ g: _( g2 |/ e
[0 d, t9 ]8 X0 ^6 m) h9 o v0 F
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)
' c; ]( W" ~$ w0 X4 xset k (k + 1): k! M0 [ t# ~ E. F2 B
]
! N" J' W, A! |" _3 F5 ?/ _set [local-reputation] of myself (local)6 u! y' U# a: d5 d) I$ g0 s8 T- w
end$ M8 Z, n' S; ~0 m' G2 {0 x
2 s- L2 O! I2 [- `2 R3 x: R2 V; t+ vto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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' Z7 E9 r) r; ~end
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to update-credibility-ijl " E" ]; J; }: q% i
2 K- B+ O8 g# F& ?$ @
;;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。2 d; v9 W3 _; R
let l 0
k# e) Q& J& Vwhile[ l < people ]
9 J, [ P# ^- ^9 ~1 y# a8 s% 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
: ?2 s- i/ I6 A[
4 M+ P4 X) r( k; g3 S* }3 Klet trade-record-one-j-l-len length item l ([trade-record-all] of customer) a7 x3 T; {! S7 u- B- _" g
if (trade-record-one-j-l-len > 3)
* n4 A: o3 I. N$ [1 _" f4 c[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/ s3 p: c, F# `/ h- u2 w9 H* c
let i 3( x' l5 s- [0 U" X2 O9 z2 o# T; u+ V7 |
let sum-time 0, t5 T4 J. @' I. f0 b$ o" w6 U$ b/ G
while[i < trade-record-one-len]
- i+ k+ W! W" M( A[, |: ?. b6 ^ \
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 U0 P% k0 e: q2 q! {6 M" L; \set i
" p! t+ D$ Q& L; F; _6 J3 i5 z8 u; j( i + 1)
6 ~. o; q8 d0 v) d8 v' S6 {9 z3 o]0 Q5 I2 F% F. Q D8 g3 L
let credibility-i-j-l 0) @$ j4 x" N$ O0 [
;;i评价(j对jl的评价)+ y' K$ \0 [, \
let j 3/ s0 S9 K Z# L: U
let k 4
& P" @' P" C2 _; xwhile[j < trade-record-one-len]
& }% ]/ f$ c1 D& U4 n[
E( c& m$ c- @5 z1 @. Y- mwhile [((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' f, J: `7 ]$ n6 K9 g+ |% ?
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), Q" P4 ^8 L# Q5 V2 N
set j
7 \) w' V! O: p+ {- z8 R) I5 `( j + 1)# ^4 Y8 p- D8 p' t( V6 P
]6 H6 n- f: V/ y5 ~4 Q
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 ))( N; R. q# E- T8 |# S5 N* s
7 }1 a5 Z" m3 j# A& Z
2 d3 X. t7 ?. M/ F2 }, p* s- n! Blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* l# z! _# K6 q- o, w;;及时更新i对l的评价质量的评价3 k! o8 o% p2 Q; {4 s1 c7 P
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 v& s$ y% ~" A- |( e8 Vset l (l + 1)
- z* G: I! n; C' c- t]8 H6 h6 j5 F8 z) p: [" v2 b' p
end
* U5 a- P, F/ L2 R# E9 [. g6 T" y0 b/ T. {. T5 s
to update-credibility-list# k% W2 a; [% `) N3 z- a+ J3 A
let i 0! L* {6 Q: a! }# U
while[i < people]5 E/ n" ?% Q2 p. }1 p
[
- U# }. `2 K( z. m O9 i$ J0 Y: Mlet j 0
$ O/ `5 g" W2 Alet note 0! @* d. I# J5 h) f$ L5 u; `
let k 0
' M6 I/ x8 i2 m3 u$ \( E- P;;计作出过评价的邻居节点的数目
) X2 b2 M0 A0 _! A. vwhile[j < people]* l1 {: s. ?, J
[
& \+ ^; {* q/ S& L( o* @9 l4 L7 Hif (item j( [credibility] of turtle (i + 1)) != -1)4 M7 U! P% T" [4 S7 |8 I
;;判断是否给本turtle的评价质量做出过评价的节点6 D. i# J* u6 Q+ T+ o
[set note (note + item j ([credibility]of turtle (i + 1)))0 \9 C3 l8 b, g& b. ]# r
;;*(exp (-(people - 2)))/(people - 2))]' c& b6 @. I8 I3 Q7 \% M! |
set k (k + 1)/ [4 ], n& g& \3 M. A, ?2 m" c- d2 O
]9 @9 {8 Y5 |: ~6 G" \
set j (j + 1)
) `# t$ y3 \5 g% T! B* ]1 @]
B4 h$ ]+ m" q! A/ Gset note (note *(exp (- (1 / k)))/ k)& r. V4 p8 d/ _5 f# v- C+ n
set credibility-list (replace-item i credibility-list note): H1 W& k3 V6 M4 s
set i (i + 1)
3 e$ u2 K9 _, {6 j/ K# y7 e e# E]
0 v' W: A. Z3 |. O/ j" I$ r" mend" C% q: w6 T* o1 y q
! K5 }$ L1 @, D* x% U0 ^6 \ K
to update-global-reputation-list
7 T) b: b" l4 n2 m& R/ Y$ rlet j 0
0 c* z+ h" f! V8 t) x- p5 Y! bwhile[j < people]
& P3 M' X, k" a$ Q1 j[
* m' P( e a, ^- e1 Z' T6 slet new 03 y; D2 b. B, I
;;暂存新的一个全局声誉
0 K! K/ U$ r- d- d# h6 Alet i 0
" l/ g+ Q: t: M8 Mlet sum-money 0
5 t) H8 s- p/ A0 D! U9 f. g, Slet credibility-money 02 x. F: |0 n% Q1 h# z5 R
while [i < people]4 m; c& X. U: L- [
[) v& u/ g( W, J3 |& s2 |. c2 n* i5 _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ t9 p! o5 Y7 h# k% k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))5 f" n0 g- V/ W4 \9 u7 h8 o- [8 V
set i (i + 1)* M0 s" b( R5 j2 ~6 x; m9 j
]
) K2 a7 j! I7 _0 E' Q8 slet k 0
. a% R* p$ e5 E, wlet new1 05 B9 t6 t0 _! r+ W9 M9 |( e/ @
while [k < people]
) w' b! q* W- O/ \[ o0 h$ C& t% R& F; s
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); B, ]& U4 v; ~$ h; @' i
set k (k + 1)
+ W5 m; @0 I" z/ M' I+ N]
Q+ T0 n4 `& S. Sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # R/ K/ W( o* l! J
set global-reputation-list (replace-item j global-reputation-list new)
- w$ {- \( e" f: G/ T5 kset j (j + 1)* b4 b6 h& y8 g h- W) w
]9 Q8 G# W; a' Q- T; u
end2 x9 u3 L3 _$ b( H: Q4 Y L W" U
- R& e: }" V2 p3 [5 z/ `
* G5 g' D3 l2 f; Y( `
1 T6 Z6 p1 [& F( J8 Zto get-color
1 I# w* s7 O A- o- b
$ ]: p% D; t \1 i8 L% e2 lset color blue0 `5 c- o3 @, w4 [. F
end
9 q( n4 E" g/ B0 X, _( j) ^/ V: @6 q0 o+ H4 I- A; J
to poll-class& D# C) Z7 S5 F& z# Z& ?
end
! l1 Y6 x$ R- w% [% H% o
' S# N7 K" `. T# Xto setup-plot1% P9 W- H. U! _- E+ j
. w* C2 u. f! Q
set-current-plot "Trends-of-Local-reputation"
/ Y6 S `1 o0 n& p
7 E r3 E- i& N% ~% D5 Rset-plot-x-range 0 xmax
1 D1 r1 @: k+ c9 D$ L
1 y- N) q6 J K6 w: sset-plot-y-range 0.0 ymax
1 L* ?8 p; R" w2 xend
4 r5 d) r: U8 Z! {. a
3 H3 }8 [- p$ {# y8 J/ t* @ F, yto setup-plot28 j$ f0 \/ }+ I5 p
" m, J+ v p' j0 X4 D( w7 Q8 xset-current-plot "Trends-of-global-reputation"
/ m# _0 K, ?7 R- q0 t7 ^7 h
2 E: t" z1 c1 d V$ n* Wset-plot-x-range 0 xmax
9 g1 P/ _" ]6 h
* w+ l; g' C2 O) e/ X. S: Vset-plot-y-range 0.0 ymax% g! Z1 |% M2 P1 g4 E' L% |
end+ }0 k" n, _& a/ n" A& Y
7 Y- m' l& p* Fto setup-plot35 N6 o. |/ V, |# @. K$ M
- h7 C, a9 }( |set-current-plot "Trends-of-credibility"
$ b7 J7 K4 r+ x* }. k# [5 |" j. m2 y) `" M
set-plot-x-range 0 xmax. u/ ?1 M1 {. v! e
; d4 E2 A$ _- {8 ^( y1 d! I
set-plot-y-range 0.0 ymax& H6 i) K4 ?) W/ g2 u/ L
end4 ^5 N$ P: Q9 c9 B
( h7 q3 r' W* Y" c+ A! S3 n+ Fto do-plots
* G" h5 j( Z/ J9 Fset-current-plot "Trends-of-Local-reputation"' T! E [. x8 `) k# q2 b6 b+ c0 G: S' z
set-current-plot-pen "Honest service"
( d6 D6 O* r% n4 F& o; q; Z( Yend
7 f. t) L/ o. W0 i3 x' W" v6 t9 c+ Y( [- ]
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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