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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: m! X0 G7 U8 s1 |: ]& |0 i
globals[
; e( z( f) T0 O* \; ^xmax
$ g3 d5 x- x6 H5 S8 p& vymax) w' I! @! f2 h' |
global-reputation-list0 J3 z; {3 K i2 x* O: J/ ]; _1 e8 J
1 ^4 T9 t* `. {0 a+ i
;;每一个turtle的全局声誉都存在此LIST中/ T0 Z; @* r' e* g- T
credibility-list1 `, N& G) h# j( o* w5 r
;;每一个turtle的评价可信度
8 H8 [: W0 j! ?& b2 ^9 yhonest-service
; f% L' ?5 p! ], L! wunhonest-service
) m& l0 p) ?) h, [4 Xoscillation% |8 Q7 h. ?, `2 m* L! H
rand-dynamic( l& u/ W( s/ W0 `, R1 d
]
$ E; \* ^/ W ^8 l9 v8 D; \. p+ }2 {
turtles-own[' s) N2 ^/ V* g0 m% U
trade-record-all, W$ c5 Q; [% o3 V
;;a list of lists,由trade-record-one组成
( l9 C& O4 E9 r- [trade-record-one
5 I1 I! s: V. c;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# Y6 E* h5 d7 e" r! A, H
9 |$ ]0 H6 Q/ Y/ p# X;;[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]]
) G- o( d8 u+ R {2 ^% Btrade-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]
* [- _/ s; n# Z- a3 }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list1 _: m8 o, @& I: M- ]. Y
neighbor-total
; {' ]# b; s B# C5 f;;记录该turtle的邻居节点的数目
6 |- V, n! R1 m/ M2 ~* I$ H8 ztrade-time3 m5 a5 }. n4 C' m! D: K) E
;;当前发生交易的turtle的交易时间7 N; z. r0 [9 D
appraise-give
- Z b$ h8 I1 C$ K4 i" a# _0 F;;当前发生交易时给出的评价
# b L: s# D' ~# uappraise-receive! v m) M; v$ C3 z+ N
;;当前发生交易时收到的评价
F7 j9 `3 a5 t* ]( w7 A% N8 S7 Fappraise-time
. M. S4 `0 E: m5 [+ G. B* ~& C- J( m;;当前发生交易时的评价时间# N2 `( N8 T& Q1 m2 L X& n
local-reputation-now;;此次交易后相对于对方turtle的局部声誉& [% ?3 P: e' u* Z! Q4 \
trade-times-total! G9 Z' E6 x) O+ ~' p4 j# q
;;与当前turtle的交易总次数
( S- N! M5 h% n6 o$ Dtrade-money-total
+ k0 }* w7 W6 |: @- |: N, s;;与当前turtle的交易总金额8 u: _( H5 f* k. \/ b% C4 E
local-reputation2 C" Y7 T& q, f: |) c
global-reputation3 k+ Y+ i3 X3 K d9 @
credibility
5 ]% o8 t" {# r;;评价可信度,每次交易后都需要更新
9 W5 |$ n6 y# ~; D' |3 s3 t+ ycredibility-all
! P4 Q9 E: K; T# t' {; H* ?;;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
% A. N6 n! F& ?" f* r3 P* ]
' r3 x! O. e3 ~6 d0 B;;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
& s1 G1 t8 w P& l+ b0 n% hcredibility-one
+ r9 E4 u0 Q; G* W2 D- F8 g, I;;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
7 J" |8 W2 T3 N8 {6 _# Hglobal-proportion3 I/ u; \+ [! K* Q2 m+ ]
customer
7 ?* e7 x' Y5 T* `5 {8 a n: J! H, Ncustomer-no6 Z0 Y' j5 I2 j* V3 ^1 v
trust-ok3 B$ d; \" v0 o. {' ~& S8 Z
trade-record-one-len;;trade-record-one的长度
9 J/ Q6 ~! r7 D K3 s3 q]
C. u6 Y/ w! t5 O/ J$ B
! b/ b8 H1 A) \! p+ };;setup procedure: c2 {* K/ v2 w4 R- i# F( d
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to setup- l! {. m2 s I6 k$ D
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ca3 P$ s6 }- w, G, g% \$ @
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initialize-settings, d, ?4 `% A d, P# u
+ a/ i' _$ H/ Rcrt people [setup-turtles], P/ u: d& d4 C, `0 ~
e0 r$ G% z3 a; V
reset-timer
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5 E0 s/ T4 B, L, Rpoll-class
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setup-plots
, L* c9 {: a, ~/ l" b% M
: B: x* E$ l5 ^' k9 z8 H; [do-plots7 t; [! T( C5 M( v- ?; Y7 e
end" |( x) t, L+ ~. D4 F* e
2 E' u+ l1 d g" }2 r( _; j0 Vto initialize-settings8 c- p; X8 Z! ]2 L7 ^8 ^3 K
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set global-reputation-list []6 b: i$ Q+ i5 ^' b
. W+ T: `) m( s( Z& wset credibility-list n-values people [0.5], H3 N4 O3 z) K
5 \. C* [* H$ o- P+ f' ]6 y6 p( uset honest-service 0
& G: ?/ ]# t* l3 M6 H( R# [
* h* @" g* _2 L- t X ?set unhonest-service 0
6 m( F) L k7 Y& Y$ A' A) |6 _$ Q2 j3 j1 f- z2 g( P
set oscillation 0
0 p7 Z- l! {3 }$ c- I, N
" ]0 Z$ N/ b) I! l/ q9 hset rand-dynamic 0
+ @& S# {4 j! ]end
$ j2 {- L5 g# V# `4 [2 v/ [7 T2 X; F5 a: [ A
to setup-turtles
, e4 w9 I: n+ a$ n' g* nset shape "person"
& w& f/ [6 ?6 Vsetxy random-xcor random-ycor& Z/ R; j* f; g) N5 G' \4 x
set trade-record-one []
$ L' r7 N5 s+ W
) u2 W- Z# K4 D* y F6 O3 h: ?set trade-record-all n-values people [(list (? + 1) 0 0)] % @- b: w3 Z6 X* m, C
) Y2 g- P$ {: [& z2 z: @set trade-record-current []
' J0 L" L6 ^/ d+ ]1 G/ sset credibility-receive []
9 U8 j: n9 S9 y6 u3 U5 C# z; Fset local-reputation 0.5
$ r. ~' `' j( c" d" wset neighbor-total 05 a) K8 T; E- e, l$ `
set trade-times-total 0& E) O8 j* J2 w p0 p7 E4 `/ ^+ l
set trade-money-total 0 e* D+ S1 }! z
set customer nobody2 J; s! t, f9 y! s9 P3 o; m! Z
set credibility-all n-values people [creat-credibility]
4 `* X, }! T1 e6 e+ g7 }set credibility n-values people [-1]
; a# L( D9 b! Gget-color
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5 [5 P& e% d4 x/ Fend, D/ q/ m+ ]4 B
+ Y/ ^8 P5 \. |% @0 z
to-report creat-credibility
4 P, V0 w" U |" treport n-values people [0.5]
# y+ `: h, _# F; z; tend/ @3 X/ }2 z* I
q' S Q' I8 V5 o
to setup-plots* y7 k" v+ j4 V
1 A2 N p$ [, r- H, w A4 Hset xmax 303 R( k# [2 d9 k
- J$ z% W% R: o
set ymax 1.0) _1 I* L" ?; a; S9 [" K! k
6 x1 P: D* e# c' B nclear-all-plots7 j2 \( e* y6 C/ O! V2 }
6 E6 e8 t8 s# Q3 [+ G5 Q6 Ksetup-plot1
1 i3 p! Q" u% U o" U+ L/ U3 F/ e
) V4 \+ z+ P5 ]setup-plot2. \6 @6 S) a7 ^5 M
7 J1 f1 c. v0 m3 ~; _8 F
setup-plot32 ~* Z$ Y8 l: i0 N/ i1 Z4 a) l
end
* ^9 ~( G# r4 T( z$ Z& H1 G3 z6 d: K g* @$ b
;;run time procedures3 y. @/ r. |' @3 i" e7 `" B
/ G6 i9 c/ a# _6 d1 w
to go* ]! Z' o$ p d5 n% J; C
0 X: p/ [. K6 Aask turtles [do-business]
# u2 R. Q& n/ z1 l" B8 N9 a/ \% oend
+ }2 j4 w3 j7 F% a: E2 H0 e4 l. a n
to do-business ! @5 a5 T- C1 }/ M z5 r
& r. m2 j+ ~6 C/ C# }# Z
$ B! u5 o. d v" R. x/ d+ O) G! |2 X
rt random 360
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* i z q. y5 E2 p( w$ mfd 1
) _) i3 w1 A/ K5 W
7 V3 X# z: j3 }, r# Z& aifelse(other turtles-here != nobody)[( T# r. J* C- ~1 k8 \0 t3 [
0 f' e: h# q1 M8 s& Nset customer one-of other turtles-here
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2 j5 m) A, Z6 O: d/ }+ x# |+ s;; set [customer] of customer myself+ o5 c" s. g. _* u$ w! {
) w: ]% u- l1 U- iset [trade-record-one] of self item (([who] of customer) - 1)
" M( S8 P# u" q5 M: a) O[trade-record-all]of self0 D, e; a1 U6 ]9 v$ z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ C$ V( ]! i( h: i# j
2 H+ R( f% S$ r+ `8 G, n9 G% o
set [trade-record-one] of customer item (([who] of self) - 1)9 D5 d/ P+ y4 d
[trade-record-all]of customer
9 V3 d. h2 o, O5 _8 f: M$ H# Q% E/ ^& v4 ?: N' n/ Q
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))3 o9 K0 I! W0 Z7 v! h' X% e
" u3 H# t( h0 Y5 P5 d$ V( {+ iask self [do-trust]+ x: h6 b& I! z' `3 {4 _, q
;;先求i对j的信任度
/ s& B9 d) S* ^ l/ g" [( c) B+ i# y! w/ Q$ G; j* ?. J3 |
if ([trust-ok] of self)* @# x' @# V! X7 j
;;根据i对j的信任度来决定是否与j进行交易[, |$ E5 Y$ E! E4 j- S! L
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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5 j) G. y* @# j1 s
do-trade' m6 m: ]% H9 o# W
9 K' c9 B0 e/ t/ |! q. B& Yupdate-credibility-ijl! o' u8 ~! Z) O* f: G; {8 A
# o _! e" V) P0 @update-credibility-list# { E0 L8 t5 X# R& \( \) t h; @
. u$ p7 s" f( e/ n% ?
$ M* N8 E# G# _update-global-reputation-list5 T( N9 k0 ~: E2 `7 D8 ^5 i: [0 e; S: G
7 M8 N% a2 o5 l# _
poll-class8 [& E* m( W z4 Q6 A
: U& X, f- _8 ~ c) ?get-color
: G2 h* y' T V' L
5 z" d, P5 ~' ^1 }, e4 ]; t]]
* q u0 g3 C* _( B* v% V7 H& l# u/ A$ o$ E
;;如果所得的信任度满足条件,则进行交易2 o2 b7 G8 D- j$ i6 i% V* r0 }3 Q
# S; A, F/ e3 D/ l9 M, \" C
[; O. l6 r8 l, Y+ [
6 J2 p0 f1 k5 l; H) [, B: N! @! ]rt random 360+ \% |; \' G1 E; H0 k. U6 l) z& b
8 f/ v, f' T4 h, j- {) n# |- V, O8 }fd 1
2 a. l1 g* g5 s- c: D# e: j% U! E* f. x! W" H: P- A
]
1 |1 j% s& S6 k8 Q8 x7 U! O$ V8 @) }9 g9 d' b( x; [! f
end u% ~. R$ U1 r% Z) C3 O
$ D! B3 r; Z8 x3 V) Gto do-trust & S/ i: t2 v+ E: q# x8 {0 b
set trust-ok False
( ?1 v" [8 W0 S8 Q$ F& T8 Y7 i7 d' h
0 k' \$ f9 n" p- R* y9 v( ilet max-trade-times 05 N1 _" S* I0 B# {. _
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ w7 ?& j! E) ?' n( G( E
let max-trade-money 0& u" u2 M4 t1 D7 c
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 V3 s7 u' Y. J% V* p1 t
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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: H. u( l Q# S+ r: ^) ?- ^# ~. a9 Q, x. S2 f
get-global-proportion
5 q; A" o) s2 c& Y5 E- glet trust-value0 }; D8 B* O& A+ z# c
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)& ]# z7 y/ [. f* i
if(trust-value > trade-trust-value)
8 q% F6 s3 Y, U$ v- d! H j" o[set trust-ok true]
3 c9 k/ v0 x# Q- ^end) K' j3 y J7 r% x
+ a: j+ K% S! z A2 ]- Q2 _
to get-global-proportion2 \! L4 z1 b7 l# _
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# B' P- h" c+ S6 E ~
[set global-proportion 0]
, F8 ?. }$ Y" P# d( l[let i 0" e q2 z: Q0 [' t: j* ~
let sum-money 02 v4 B5 D6 z; y4 ]3 s/ O1 `( i% Q
while[ i < people] o. K5 Q+ X/ Y
[& g9 u( O! Y) U
if( length (item i0 c/ i5 p$ f: u) b- H0 i) T( C
[trade-record-all] of customer) > 3 )5 ?7 L2 j6 f/ H5 J2 e1 ?
[' F! w2 M8 I! c: O0 q; T
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 o3 `0 k- q6 K]
7 v) o+ W" }3 i; ~: W]
2 d) y( w8 ?5 z ~" vlet j 0# u9 o8 w- L# L# \; h8 `: g
let note 0" u3 s2 J/ A5 o% u5 G8 L$ L
while[ j < people]
) S% m; J* D0 Q+ f1 u) j" P) H[3 O$ n+ G2 ]4 j0 |% a" L3 u5 }4 {
if( length (item i6 [, S0 U) w7 V: V
[trade-record-all] of customer) > 3 )# f# t3 b! D4 r4 U: ~
[* M1 j, J I# ~
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* D' N2 ?' u3 e/ F2 H[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
4 U* j$ S& N! m* [( B" r2 S8 ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- D/ p& o, x3 u9 V3 V" R8 H8 A4 w
]
3 O# O* s3 b0 f! `& m6 O1 }]
! U. x( T3 ?7 e$ [6 Sset global-proportion note
6 T+ q- P* |7 V3 F]
' O( ]' Z" e# S" q9 q: w; dend
7 Q/ o. @6 m4 c) d+ @! _1 m. C w
( m6 S2 C- |3 Qto do-trade
& v1 k7 x J0 s/ y;;这个过程实际上是给双方作出评价的过程
0 A# p5 r1 h! y8 v) r& j, N! mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 @0 L8 d" {# c5 q [' [
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. @/ e9 G: K& T s+ h
set trade-record-current lput(timer) trade-record-current
; e2 H2 Y& x. h; ]0 z2 y5 p$ r( v;;评价时间- \; _1 W9 t: x( i6 d+ O5 ^1 K
ask myself [8 b1 u$ `$ b* [- f# R
update-local-reputation5 R9 [$ t9 ^* I8 m# S
set trade-record-current lput([local-reputation] of myself) trade-record-current
' K; ?0 y1 Y( h]
5 S" p4 R/ f: ]) sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( K$ U& l/ E( N4 U0 d3 y;;将此次交易的记录加入到trade-record-one中
! E2 R7 O8 v! Tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' O! Y+ d. Q6 e# D/ [# O! O
let note (item 2 trade-record-current )7 h- X* U1 N) t" z8 f2 X
set trade-record-current
. Q9 m9 I2 _! k, c# F' @(replace-item 2 trade-record-current (item 3 trade-record-current))7 r0 x3 P0 T2 K! j: D5 D, l
set trade-record-current) W3 ^# ?2 g& i0 F! s& J6 O
(replace-item 3 trade-record-current note)0 C3 [) y) N3 `+ E+ s) _6 z" i
. u, j" ^7 ` j4 t' m7 }: y8 d' L' a8 U9 Z9 \
ask customer [8 t# ]8 H; a- s, z- K0 W5 g- L
update-local-reputation/ {, N' j8 Q% A2 @5 L. n
set trade-record-current
0 S1 @/ {/ r4 M$ R H5 U3 V& m: r(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 F0 W% ]0 t# o/ e]
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& e) N$ e8 X2 c! E5 n% i \/ C( m: w7 p6 a; \/ N6 v, `7 ?3 n; R4 h
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" j" ^ W/ j* z1 t
4 P7 ^$ I6 t+ C2 Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ @4 {/ o: _+ P$ s. {
;;将此次交易的记录加入到customer的trade-record-all中9 ^' V z" D- y L+ F" v- n
end
; I3 t/ h" \ I: C4 I
! a; D9 m3 t! u& V/ `0 f% E, \9 Nto update-local-reputation
6 f/ a# `/ d5 Y8 O. c3 u8 Dset [trade-record-one-len] of myself length [trade-record-one] of myself# V! F9 p/ g: J) _" ]4 O
1 E* q7 R4 S* ?1 C
6 d. x% ]# Z) D;;if [trade-record-one-len] of myself > 3
( x* P$ v& Y: l% E5 A7 r! s/ o: m: M2 zupdate-neighbor-total. Z& ^1 B Z% K6 w0 v- ~% V
;;更新邻居节点的数目,在此进行
7 d Y! k% b0 G; t( [9 H0 F: ylet i 38 {3 ~% X5 b) W7 B% p( f8 I3 v
let sum-time 0
/ Z: u/ k$ V% ?while[i < [trade-record-one-len] of myself]
! p# y4 }+ Z2 ^& X[
% N. `3 n0 c$ n1 K( H3 bset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 T6 V8 f+ `- ~set i1 o5 j+ g' Z; O& ~- B h2 |
( i + 1)- h+ r& j- a4 ^7 {# Y/ M6 e' T
]% x5 H4 q3 `$ k& h- `
let j 3
3 l3 W* w# ]0 y5 d. e$ b2 slet sum-money 0
$ Q t& W# y% E5 D, p& U! Pwhile[j < [trade-record-one-len] of myself]
4 I2 x0 m' D# X( p[* |2 v) C {- e& c8 p
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)! _( G6 |9 p2 y* k( s- W
set j, \4 u3 D: s: C9 v
( j + 1)) q) V; t- j: E% X
]$ Q" ~& t) u U7 |" E
let k 3
# R# C2 Q/ H# d9 Hlet power 0
% v( @8 B K) D8 Q5 i; ulet local 0. W$ o5 i4 l* W" |' t7 t) d
while [k <[trade-record-one-len] of myself]% ?5 X5 ^% P2 n" {) R2 J- r
[
+ t+ } M1 A' @8 qset 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)
% S3 y8 R8 t0 F. K; ]! pset k (k + 1)' v% _" Z) h$ G9 F3 V9 B
]2 B, V B" G7 K% ^( t' L: @0 f
set [local-reputation] of myself (local)
7 V! S8 z6 O0 ~% P0 hend' v/ d9 r* X) L6 P+ P1 w" A
S, |* x7 |5 I7 e' W2 a% f8 Oto update-neighbor-total
& x/ Z- K, t# t( n! M" Q% q
8 Q7 ^% N: \% R/ O- Y7 O5 {( Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& b( _4 q9 h( ]1 @; S+ O5 @% I: O1 x) @
$ z5 [/ s/ o0 D
end: X) t( G+ X" v" E
8 z% v7 z2 g5 S# g A+ Eto update-credibility-ijl
4 A% t3 q& U/ E ~
( l6 s7 I5 i+ i6 L5 J4 w;;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。
) _( y& p/ T2 Z0 X8 Wlet l 0' ?$ a5 q: i$ Z& m, H
while[ l < people ]4 D. a5 i# w9 @$ K, {" U* `' n6 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
% q* y) k+ n' I7 I& |3 u[
! w( }2 y) n# s0 H' {# i/ dlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 x/ J( M- }/ v! zif (trade-record-one-j-l-len > 3)
% ]( R0 L) D' a6 \" X[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
) J6 ?2 Y7 H x( n2 Q) `: ]4 elet i 3
6 v5 e+ \/ t4 O" f6 O3 tlet sum-time 0
* m9 R5 U2 s) z( |while[i < trade-record-one-len]
! c! P5 M i* ~$ d: O# [, N[
8 q$ f8 R$ Q+ P9 X7 g. G* L5 Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), N% L1 w) k; k K1 v/ N) w) H, O
set i
9 a5 L( p5 [" Q" s( i + 1)* j1 P2 O# @" s0 P7 P) J e
]
, P V9 \* P/ M2 j* Alet credibility-i-j-l 0' P" ~/ d1 z' W; Y
;;i评价(j对jl的评价)
) c/ @1 ^0 j3 r+ B. i( L8 O |let j 3+ M6 b D" S4 [" n6 \, o9 @ ~
let k 4! {) I0 a7 r! t5 n5 `2 J
while[j < trade-record-one-len]& L5 k1 ] L$ I/ R w
[) M, ~) N" Q2 s; \$ L4 {
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& L' {, z- I* n
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)
8 `% Y6 Y7 l* ?: w$ `) r! o9 `set j6 E3 Q( E+ [2 U; [5 A% L
( j + 1)
/ |8 e, W5 H0 ]* B5 ~]
& a- U3 x% h3 R( v/ g$ Sset [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 ))6 D, p; l1 Q; g% l: `
s( k; P5 E+ S2 C0 s; t( c
+ @/ Z: W4 ?% N( N1 plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, U1 q- ?+ X0 M! h/ e, k;;及时更新i对l的评价质量的评价
, U! d) E. U& }, U/ B3 g Wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ ]+ b! A- H6 [* U5 X+ `set l (l + 1)
1 P% p% m5 ~4 e# H y/ P) d]$ s0 F, u" R) P1 t/ q
end
) b. I& M& `( }& ?1 a- a) q
3 ]$ Q- Z$ W. a5 Zto update-credibility-list+ P i8 F( M. c+ l0 R- I
let i 0
7 N y: D9 N; F* w, _# Hwhile[i < people]5 f1 U* K1 R- @1 Y
[
9 `- R7 p5 T. H1 ?8 Klet j 0& `' A3 q' I3 ~ ?2 a" a8 M B
let note 0
. M% s) i* G2 ]8 D1 Nlet k 0
! p) f: H0 e1 F6 N;;计作出过评价的邻居节点的数目* [1 c' E! y5 t+ @* y$ N+ m+ B
while[j < people]* V9 h) [" j# j/ _3 X
[- ^0 I) S0 |2 R6 r. v
if (item j( [credibility] of turtle (i + 1)) != -1)
; f. ]2 N" m1 E) y: y% [9 }# Y;;判断是否给本turtle的评价质量做出过评价的节点# W2 b5 f' f: J7 S7 W
[set note (note + item j ([credibility]of turtle (i + 1)))) q, l8 y% r8 q. l% ?! v
;;*(exp (-(people - 2)))/(people - 2))]2 Q' W5 o+ z7 U
set k (k + 1)
: l$ k7 a0 R! `, X! C]6 q. ~+ i, ?7 `
set j (j + 1)
! ?. R( Y% d0 E8 @]
. b! E) H V c/ {3 aset note (note *(exp (- (1 / k)))/ k)
9 [1 e4 N' ~+ r4 t1 V5 ~set credibility-list (replace-item i credibility-list note); ^+ Y U% {( N5 Y' s
set i (i + 1)9 L' N R. I# ^8 [/ X& c7 v& v3 v, t
]
) q: B7 C5 q! }! E) R& Xend
" B' q7 e5 K* L/ C# l. F6 S$ \+ s9 e% n: H% ?: s# B
to update-global-reputation-list
) T B6 j/ Y" g0 C# h! Q0 ^) [let j 0
% U) \9 N$ r4 `% c% _" j8 wwhile[j < people]
8 Y/ x0 B( r7 q+ I9 c; \[
! w% e) e$ \$ P" F9 R( G( Glet new 0
3 ~3 z: e+ ?+ J7 m5 V% d) c;;暂存新的一个全局声誉, n. H7 Y6 H6 o! X' d
let i 0
7 h9 G/ }. a! Z% C Qlet sum-money 04 j' W C0 A+ j7 \( v
let credibility-money 0
( V0 h+ d; U0 I5 n Fwhile [i < people]/ U2 ^* y* }6 ]
[
! l1 R o# f( \1 p2 F7 U/ @( r3 pset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; g! R% e9 B: f6 j! L aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); N9 g; J( x5 [; J5 D2 v2 R- n
set i (i + 1)
: i/ p/ L0 Q# b' A' v4 k+ F]
7 X- B3 e0 a; q; Vlet k 0
+ |, h1 W5 y+ E: `6 O3 elet new1 0
4 V, v; }% y1 X6 }' @/ F0 i( vwhile [k < people]
: L( z7 c- X+ u[- ^( G- Y0 X7 P. r$ M; l
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)" h+ k# X; e3 _
set k (k + 1)
6 }' ?. l9 [+ ?]
( w( ?0 L2 B5 @% q+ Iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% G) I6 Q% g: q& L: i4 cset global-reputation-list (replace-item j global-reputation-list new)" f8 |4 L5 v- L# v* r
set j (j + 1)' d( ~4 C* l! X, }! [% ~6 L1 k
]" R l- z( V$ G: W2 u; D
end
& Y1 E& N1 ?0 `% F5 ~4 D
9 j, T+ u5 W9 l8 j) Z# @9 g
" z# F2 V+ Q- [$ J/ n& C( M, Z" j/ E* T0 D& G) i9 s
to get-color$ h. {5 a6 ^- q8 S) M9 {+ B
- s2 y' a' r# B5 q1 S3 Z2 z0 E/ ^set color blue
' l. x6 [5 F( Q9 H& E. j( tend) s- p- d$ C: K1 h# k
7 X: `: D6 C6 yto poll-class
/ C' o$ {/ C2 N" Cend( `3 m! c. P5 H$ q ]* ~$ n
0 S/ ^6 V% s* q( Kto setup-plot14 [) j2 H2 z1 y. S
& R( Y W2 Z6 @& E" Q
set-current-plot "Trends-of-Local-reputation": x; x' S9 A) f) E1 A$ B
, {7 _9 g+ }, e& |+ N5 Mset-plot-x-range 0 xmax) i9 q2 J0 P z; a4 n8 f
# @6 l" q! J) v2 v D- D2 D- @0 S
set-plot-y-range 0.0 ymax
9 p# c" y, a' u5 T; \+ U) hend) z9 u) ~, F5 Q/ z! X5 j' x
7 M Z- g8 r8 a' Jto setup-plot2
: X7 c, W5 k {2 o0 s
- \+ \+ F: x0 x8 aset-current-plot "Trends-of-global-reputation"
6 b( G! P, n3 C4 D1 ^4 O0 u8 G1 h
set-plot-x-range 0 xmax( R/ L' N5 h4 O/ _6 ]3 v2 q
# h0 i$ t7 a7 v* c8 k4 {% |
set-plot-y-range 0.0 ymax
* [$ f9 E2 @! send
) v! M0 I' W$ N( X- k/ e1 o( n6 Z: `1 p+ J3 ?' S, v- u: \
to setup-plot3 r$ U. {' F9 n7 \) t
* [1 d$ u Q+ k' h" x# Tset-current-plot "Trends-of-credibility"
; f% Y' R2 [ ]# L `+ N+ ?
- o I6 u; t( b+ Dset-plot-x-range 0 xmax% Y! y' o: }* x: T) s
" }9 M6 U9 e; }$ b; X
set-plot-y-range 0.0 ymax
' J1 z; o, e" z( ]6 zend3 C& J8 e2 c! s( z- M$ Q
) l& g0 x* p% J3 t. ato do-plots
4 ]+ w0 b3 W% _* f3 y yset-current-plot "Trends-of-Local-reputation"+ x1 y4 m( C1 t# C3 [" ~
set-current-plot-pen "Honest service"
* y/ E5 `; h! x& Rend3 |: P1 T) s# o0 P/ V' w* \, e
$ z- p- X8 ]9 Y6 G[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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