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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
3 Y3 B* I8 d6 T- {/ B8 k- }globals[' a( |& G. v/ D. c
xmax4 c' I# |5 p& `- |; O4 `
ymax4 @5 a9 X1 L: \' Z& S# C
global-reputation-list
5 {2 z Q Q6 N7 U" A0 @! R; }, Q( I) D' Y- g! z
;;每一个turtle的全局声誉都存在此LIST中9 e8 ^! W9 ?9 c2 p- F
credibility-list; W% i# g0 k. V" W% ~! k! R9 @. T
;;每一个turtle的评价可信度
- {0 u1 b. C+ f$ x# d# f5 y2 Fhonest-service
/ Q: i" z7 Z+ V7 ^8 D! Uunhonest-service8 t! ?( t( U! s5 Q
oscillation, e7 x7 b3 U5 K) B; y& B
rand-dynamic/ b; Z" l$ {7 _
]
# ]5 G' o- X/ X* F8 ~8 |6 l7 u* ~# Y7 V+ K
turtles-own[5 z+ n% u2 N! ~8 Z* Y
trade-record-all
- @6 D* `3 [' W* n3 N6 K* o4 `; b$ K;;a list of lists,由trade-record-one组成, X5 `; N' B3 b* [# {7 g: ~
trade-record-one" b. p+ o+ f4 P* w5 L9 Z! [' J
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# J3 W' U! Y5 n* g
F Q3 G! B8 v, K;;[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]]. v9 R o5 e6 t o& @
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]& R0 W, A. t5 W' N& o3 r! D# j# I
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
0 l# |0 U; V/ ~1 M2 Y+ z, x K9 C4 Hneighbor-total& R) _+ w5 \' p5 X3 S2 `/ @* W
;;记录该turtle的邻居节点的数目0 Y# u/ |3 f6 Y( d
trade-time4 `# _* T$ \; b
;;当前发生交易的turtle的交易时间" p0 p& X/ P* D- s: Z3 F: [1 i5 p
appraise-give8 D0 Z/ ]7 c! D4 I! W
;;当前发生交易时给出的评价
9 e" y* z) M; L. gappraise-receive4 z6 A0 N" }, Q
;;当前发生交易时收到的评价3 E8 e, Q; O0 L* L, S+ ` x. Y
appraise-time8 `/ V& \; Y8 g( P2 q5 u
;;当前发生交易时的评价时间- O4 X1 X' Y! C3 y
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 v1 \# o$ l! xtrade-times-total
; R) M# `# `( W* q: X% J$ `5 a8 V;;与当前turtle的交易总次数
- A# y1 G2 B4 u8 I$ Otrade-money-total
& D' _ Z) }% W9 J: R;;与当前turtle的交易总金额5 I( q7 U: o( j) R; W
local-reputation, c1 ^+ ^. n, _: N1 m
global-reputation
& A% p2 q$ P6 W+ Acredibility
, S$ {7 ] \1 t( ~% Y( l5 [, R& \+ N' x) b;;评价可信度,每次交易后都需要更新/ ~6 \* f/ a+ k% y
credibility-all& e8 a U6 o/ J `" ~3 K
;;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
8 d" X, p3 d( `2 g( ]
2 _0 i) S0 S) h0 Y: f;;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
5 P/ i2 D6 h4 Z4 r, o6 ~. }; n I. Ecredibility-one) f( W! V, ^3 A7 u
;;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
( s1 {( O# H$ \8 {global-proportion% B; v: U( E- G, a% V. Y( a" I3 [$ D, h
customer {" X; e0 S6 a
customer-no
$ n* O* W Z' @1 O! [: D+ K0 wtrust-ok7 P( c4 ~# z% D+ ^" f; w
trade-record-one-len;;trade-record-one的长度) N8 l; ?8 H0 |0 O! s% m, d* N
]
/ i, X' E! {, L A6 ?; r, n
7 ~$ \* W" i' p9 c, Q1 e& F;;setup procedure* i+ B/ z- A4 |# A2 x
7 E2 E4 N0 ^) h/ ]5 a8 D: k* cto setup
) t+ {+ p; u2 r" L$ K) w( _! M0 U
@, m- q) L: Y6 ]/ Cca4 j# w) J/ c& Z
. a. B0 r3 B. k( J% \1 | Minitialize-settings; P% D2 B7 W' `/ u
! ^) r4 O+ ` d9 N
crt people [setup-turtles]
9 L( ^2 b* d2 v& h6 ]8 Z. \7 _! e" |% @$ M4 \; b9 U
reset-timer5 _' D. M; B `) y
0 P7 X e& f6 `poll-class. Y- B C; I" C/ o, I
5 s5 \4 f) \ t, U t6 w L- asetup-plots. g! h* Y e5 d& J
: {% h9 B8 z5 X% Z; H6 Q+ }do-plots
, I6 {$ {2 w: n! o% j8 send+ s. \4 v3 a8 j+ o' n
+ Y- A1 g) h. j, A/ U5 Vto initialize-settings# ^1 g3 m( F4 _ c1 I
" u4 `- c, V8 @( H0 uset global-reputation-list []! ?9 J3 Q& G3 ?! u# M
' J# _% Y L) R; V2 b
set credibility-list n-values people [0.5]
6 R: W4 z" J; I
( m. R, L7 i4 S3 Hset honest-service 0
. g- |2 \4 E3 F" ~) G( x
2 g- a" ]9 A8 Z( Iset unhonest-service 0
5 f7 Z- Z9 l" j \
# A! p- Z1 @- a9 hset oscillation 0
5 j$ L% Y. P& Y" z. Z/ b4 c$ l9 {; x0 x
set rand-dynamic 0! }) b6 E* R8 o1 Z" y+ J
end
; t* L0 ?% |3 r6 C" W8 W/ `! b4 ~6 g1 x; q8 O% I6 s8 X
to setup-turtles
( F6 u3 y$ e8 i" v' U) Rset shape "person"
- r0 Z# |9 {& c6 A: y, q+ I# H+ Isetxy random-xcor random-ycor& m) d. p7 g, D. L) |0 W
set trade-record-one []
# F; [$ z; i7 Q3 x6 x6 o+ v! U$ c4 ?6 |
set trade-record-all n-values people [(list (? + 1) 0 0)] , z% q# `$ t: H9 H/ K" Z
1 m6 f9 P# l$ O9 h( M; R$ lset trade-record-current []
9 I8 a, x- m. a. [9 Cset credibility-receive []2 a1 x+ E6 \$ F8 i4 e' v! l1 o" B6 J
set local-reputation 0.5
0 `2 U" P5 P6 Dset neighbor-total 06 x" Q7 \" z4 b, o! w3 D) j f8 d
set trade-times-total 0
) H( u1 c) l) M4 J- e. O# k: }; vset trade-money-total 0) a' l; t9 m v. L( F
set customer nobody
6 v: g; d! k+ }1 o/ \set credibility-all n-values people [creat-credibility]
1 |+ t# N& S' ?4 vset credibility n-values people [-1]
5 K# `! S7 y) a8 r7 jget-color; O7 D t& n" M. Q! |
( f0 W% f3 v! A
end k( `6 J2 u7 M3 g
- J2 }5 B- R% W, Z) s3 X) P0 vto-report creat-credibility
6 h/ W+ }/ R: A. J. y; n' h! zreport n-values people [0.5]& K" x, r1 i* ^. r- f+ y) o! V0 a
end; }2 b v3 Z+ y
' j* | A+ j, J0 [# A. j0 lto setup-plots$ ^: D: \( T3 q1 o- O! l: a
+ f) Y4 \( ?4 R2 R' R
set xmax 30; V& t: a* U3 C8 |
) A0 x3 c; H4 M; f3 u% u: Jset ymax 1.0
4 z. A, ^% v* N: c1 s5 U* [' o/ ^' N0 q" ]; K
clear-all-plots
/ @6 r( M q8 v) X
/ F4 X8 m C7 Q, V; a3 p0 c6 rsetup-plot1, N1 o U% Z3 ?, G5 A
; f4 `1 B. g4 }) U9 ~- h) s* {; n
setup-plot21 |4 r8 h) L; c) L' M, g
- ]3 ` O* M. I% c9 A% |
setup-plot3
$ N" Y) Q1 r9 \/ l! W4 k" G H( iend5 W6 B( y+ o; @
% N' w( H0 A w0 B' E' [;;run time procedures
$ r7 R8 V# s" _$ x. T. H8 K. c& D) Z. f3 M
to go# A$ c0 y+ J* \) E
! T' K5 j* ] L3 v2 Eask turtles [do-business]/ o7 r; S& O. h. I5 v5 I
end
6 J$ L. g% F |% ^1 ~" T+ Z9 d2 k4 q$ D; B' B: S
to do-business
% _4 g; m( U/ @8 T* A! p t0 p# R! v; Z: W# M
7 g& \/ Z" b; {5 p/ u7 R$ d! [5 irt random 360
0 K0 c) }. ?, o* _ O: ~$ Z# T
( j6 A7 |$ a+ N( W- qfd 1% E% O* X/ h( k0 h! s9 a% n( O
6 o# }$ B, x E1 aifelse(other turtles-here != nobody)[
7 j, x. X) N8 q) j" n% E. D& q. Q2 F. j
set customer one-of other turtles-here
- P" U0 q: W( V8 @6 E& u( h+ o; i9 F" ]4 {$ T6 L
;; set [customer] of customer myself# |; X4 E. S3 m" h( v) \3 J, R8 D7 G
8 ^3 n& d/ K9 f; Aset [trade-record-one] of self item (([who] of customer) - 1)
" Y T$ Q- g8 x[trade-record-all]of self! E; \0 A6 i: W/ F4 k
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self* b5 S# U% ^) h6 A7 }
% {4 |! y2 A" x1 x. {$ T+ Cset [trade-record-one] of customer item (([who] of self) - 1)! w" d$ x% M9 i& Q/ }0 q9 R
[trade-record-all]of customer" Q Q$ ]* G2 r2 ?4 o5 j
( Z5 l) u1 k2 i4 Y) j
set [trade-record-one-len] of self length [trade-record-one] of self
/ B) u" p% K8 v3 F/ Y& f" j" T) D0 V' Q' |: C. f. O
set trade-record-current( list (timer) (random money-upper-limit))1 ` P) ]: D, c! t9 s' f8 V
( U& F. g& ^& j2 Y7 C6 fask self [do-trust]
: y4 P! e; I9 N7 W* S8 g6 X;;先求i对j的信任度0 w& R, C# Z5 G& d( [# L7 E
: T( {( A5 M6 ^- z- _- pif ([trust-ok] of self)4 y3 T0 h& \# w; V: T1 }0 @# @) E
;;根据i对j的信任度来决定是否与j进行交易[* d! [7 k4 V& g9 Z" c2 V
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 V7 M5 ?7 O1 E! n: H9 v6 T( D5 H' L
7 V- A$ r. H% l9 P: ]* S" K4 L
[
7 d) [4 ]8 c- C0 t& Y9 u; Q" H+ k8 c# T. R: y
do-trade4 S5 J" V- A: P3 S- @
6 R* G1 U6 S6 J& Tupdate-credibility-ijl+ W/ a/ g5 V# F* o# a0 H! K5 G L
" w C6 [) O* r: D9 Uupdate-credibility-list- V% ~, d" k1 T7 `% {) V+ Q$ k
, Z" I2 I% H0 v1 E, h
( A, S3 |7 f/ [, d, s% s9 l5 g" yupdate-global-reputation-list
0 a3 O5 F; o# f E; H! }. R5 h* d' T$ h; i
poll-class: J+ D6 k/ v# [& `
- o3 |' h0 ]- h9 N$ i" Cget-color$ r% O& E0 {$ ?2 {, B; `1 j
( b$ n# G0 ?3 ~) I. {4 r]]& z0 Z$ j. u: U5 R( Y
- N0 J3 {8 t" u' w( l3 c$ V& };;如果所得的信任度满足条件,则进行交易
$ Q( x6 @$ ~, z. H$ m$ R1 r
& A5 a/ T) o1 K4 ^# b5 u* s[
8 p/ }1 `7 G3 x k5 _5 Y+ y; F6 \" ^ Q- }7 Z2 I7 P( \2 b' Z5 k
rt random 360
; S$ K/ S+ r I7 |2 T1 y t/ d
/ @4 G% b! x2 H5 Z" mfd 1# d4 ^4 s8 Z, ~( G5 e H8 H8 M
" m r$ {/ l! b! q6 Y
]1 m/ O- ~( x4 d- b( i. d# @
0 A3 x0 p) h$ i8 x" j+ g1 t2 u
end
0 O1 g4 { W1 X6 ?3 A9 ?1 M
+ n+ d A5 I/ O/ ~# B" {to do-trust ) C( W& M) s) b8 R! r0 N- F
set trust-ok False
* n; V5 \" F) }. V+ _
% A* x8 f) K. p: n* j4 h0 g. M+ d; ?: ~/ `; o/ k9 B0 j
let max-trade-times 0! t7 b: i% y- L5 s" N4 q$ |7 m4 r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- K5 a, ` y- f* Ilet max-trade-money 08 E' q& f& c' i1 v
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 t* m' W* A/ U) C& 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))( M( s, b9 z( D- \5 C+ S$ @
w3 m: y# q* x, {0 ^' a' P# A6 g$ V) o" e
get-global-proportion! B8 k9 u" M3 ^1 L$ \5 x. T+ O
let trust-value
& @/ v, N* |' N% ^6 [. m" ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)& U8 K. w) F4 P. l& @
if(trust-value > trade-trust-value). u4 C$ g, V2 b
[set trust-ok true]
0 f, p! Y( | f* B- B% gend
8 T1 ^0 K. R: U# q, L
0 u# c; X/ P2 Xto get-global-proportion/ W. J! k9 u- M0 a5 V6 ~
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 E) \% ~/ F: A! v
[set global-proportion 0]
v3 D b* u; I+ ^( u4 _[let i 0- K* M1 x8 c) y: O, ^# s6 s
let sum-money 0: x2 X- F1 o- H
while[ i < people]
, L3 m* o7 P1 i) W6 t% Y2 n4 s[
, b7 Z0 r I c( ]6 i$ H' Aif( length (item i
' L4 w7 n' y. [% b* o+ T$ A[trade-record-all] of customer) > 3 )
+ ~" b1 `9 r3 ^[( u, @9 l9 n. p
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)), z+ o0 D: g6 d' f
]
( g9 T1 m5 ?4 E]1 W! r% _* a) @" N9 y
let j 0
. c7 }4 z6 B! g4 Y* r3 ]/ _let note 0
* k2 s: |2 i/ c$ Z$ ewhile[ j < people]
7 H; M' o8 f- J[
! _9 d( i1 C6 z1 D" hif( length (item i
0 i$ V. H, ~9 m' I" z( X[trade-record-all] of customer) > 3 )
- M% Z3 d+ v& C4 D- _! O[3 O8 |+ t( s# o1 \9 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! v! @" j' c+ Z' l+ ?[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 o( |) d7 s, d8 u; G. y4 h
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 U: n# O* c! i) x( O+ f1 k5 i l4 o]( I2 W! g/ a* \3 J$ l2 z
]
' D" W, @; a; h; g" E: o0 H% f2 A: kset global-proportion note& P7 i$ n7 ~9 F6 a4 B7 e. |- v
]
b' s4 Z! ^: A- \# vend
' |& f. q6 z# s' z1 S$ Y v" I9 c7 }( O% A1 Q8 C
to do-trade- b5 [) C, S* \, H
;;这个过程实际上是给双方作出评价的过程
6 Z1 h3 }6 C8 @9 T/ Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
. f6 \* V2 L n, m2 xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# r/ T* |( }. n0 q: s" Z
set trade-record-current lput(timer) trade-record-current1 j& X, }1 x- K4 u( g3 y6 v/ L
;;评价时间7 ? b% X Z( J6 J: E, Q$ [2 A
ask myself [
& _, }; l3 T: i7 f0 B& Mupdate-local-reputation' Q5 [9 y. D0 V
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 s6 F6 w" i: H* `]
5 J, o+ }. `# \. Bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) @; \, u) x& A+ g;;将此次交易的记录加入到trade-record-one中
9 f5 v! `- ~0 O: uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 d) r w5 R, U( `. C. P. Llet note (item 2 trade-record-current )2 ?( T) C* C4 A- }) D/ `$ h
set trade-record-current
: f( f. c/ p- M% F0 o(replace-item 2 trade-record-current (item 3 trade-record-current))
, ?# I2 M# w# a0 T2 Uset trade-record-current
* A) w4 p6 h+ J) s7 v. T(replace-item 3 trade-record-current note)
8 k; @$ n) k ^8 s4 l, k5 m9 \1 ~* ^3 a i( L% ]1 I6 }8 I
, T ~4 d$ ?8 \3 u! t( Y
ask customer [
1 K! I9 p2 Z6 y" U3 w) ]# _update-local-reputation
! b A* ]+ M' n: D9 ~2 c/ Q4 \set trade-record-current+ P6 Z% E! c2 _
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ N; Z" k) I. t+ f7 U]
# \9 b, V* j' p5 c: h8 {. }+ M8 ]' c
1 \1 A2 o$ d" x& m( Z' Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" O0 Y% j% @3 x$ X" E
- w- J8 x1 ?0 m& lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( s: l1 a+ D3 y- e+ H
;;将此次交易的记录加入到customer的trade-record-all中
" M% d7 \/ t' I l V: l! yend/ M( R5 o1 Q! M0 B1 f0 {. T2 f1 B
' t5 {, i6 a% Z; x% Zto update-local-reputation4 P: b9 q% x: h% B- p$ n
set [trade-record-one-len] of myself length [trade-record-one] of myself( i0 X6 a, W; v7 E4 k. C+ A) u
* s. O) h2 Q4 J& M& I' k
' J8 @" }* A2 `8 s: ~! }: R
;;if [trade-record-one-len] of myself > 3
" U/ `+ [$ A$ w$ ]update-neighbor-total
0 [7 T8 d) [8 r; s f& {;;更新邻居节点的数目,在此进行
0 d! k- Q; h* c. w2 H6 Flet i 3
% f4 q" F5 Z( Olet sum-time 0
8 z% }! @0 A0 a8 [while[i < [trade-record-one-len] of myself]3 i" T. g# R% O4 g" h! F6 o
[
* q7 q+ `& Z; {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 h. r' b: a) N4 p1 q: M* tset i
" A C% H) u, }( X7 k7 y( i + 1); o3 @- R' M' R
]
- K, U7 g# Z! k# x+ [ F0 S$ ?let j 3
+ p* d8 z4 n4 G- S' g1 _& Mlet sum-money 0: d7 M: T' D# R; z7 D
while[j < [trade-record-one-len] of myself]9 P0 c# _4 z1 M. u! j
[/ T# w* P! y7 C' r* s! G& j
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)
. d. l9 E; F' t5 y7 b/ `' k* aset j
5 u" `* O- t) A/ d+ I; L7 s* Q* Q5 m( j + 1)+ e3 Q; j* z/ g" \
]
% Y2 L( A7 l0 c% T$ ?% f: ylet k 3' \: c% _2 V0 t9 G$ C8 `
let power 0
$ S8 r0 e2 {3 c6 O0 `let local 0( ~. f1 {4 E- V0 Y
while [k <[trade-record-one-len] of myself]7 Q9 O+ W3 g8 R& O" P% W9 n. B
[
: ~! j' s+ e& o# ^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) 3 p1 w- `* T$ U" B. w. {( _" t
set k (k + 1)) q2 [1 A# n, H, t b0 g6 F
]& k' V7 f) ^% `, i3 x
set [local-reputation] of myself (local)
$ ?, s/ Z! a S6 s' Uend. \; n f p6 d2 e6 w! y; D
2 \7 b6 T A8 L3 t8 Z$ r$ uto update-neighbor-total3 t- `) H4 } t, ~& A$ [
7 [5 v/ m% N& N4 S' [* O, ^if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
5 F- U7 A" Q3 F" L5 l: K" W6 R/ Q6 h" ^3 Q# {( z7 N, e7 T
7 k4 D* K3 d4 d3 \end0 R8 K/ z4 m, B, v2 m) B7 a' A
2 G. L7 c# [% v+ o! v
to update-credibility-ijl ( {, f0 n3 b8 E" ^9 A2 N
: S: i: p! {& A
;;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。
- X- M$ _ J0 N: [4 zlet l 0
+ S# c, m& r* ?7 C3 Nwhile[ l < people ]
- E1 a( z h9 e% u1 @& x;;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5 w- q6 d2 H* ]5 W
[6 A/ P3 ~/ j1 O
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. @( |; `4 r Y: v% ?if (trade-record-one-j-l-len > 3)
* E, L1 h' j+ y4 o[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
# J: ]$ x& g% h0 b( `; `% Mlet i 3
4 {7 u& B3 e" J3 a9 C- M5 T8 Glet sum-time 0
0 \' f1 d& t2 S& t( z8 d; nwhile[i < trade-record-one-len]2 O+ \* Q) }" ~4 s5 a2 p! k' T4 c
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 Z7 [" g; Y: e7 W, Dset i
6 @: @. \( y& z( i + 1)
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let credibility-i-j-l 0: W. {2 B% @9 i I
;;i评价(j对jl的评价)
, U# `3 W( a! N4 R5 ]5 Hlet j 3
: G- E. |7 z8 r9 F G' I8 alet k 4
5 Y8 b9 D: U* Z/ X: `while[j < trade-record-one-len]3 _: n) d/ _/ V! r3 [/ C
[& A% u. o n v X
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5 D7 u( v. r! g/ u% T+ x# J
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)! i& `8 `, F( H2 e5 t; q% v
set j
* `1 ^( c! z2 F( j + 1)
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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 ))0 c2 s/ F1 h- O
% M: A% f4 q9 D* E& I* }2 g+ {
5 `7 p( B, A/ o5 i* R' t/ Z+ y4 Olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 Y7 z4 _% \- g& w/ o
;;及时更新i对l的评价质量的评价+ I' L1 {: m! k$ E) q) n2 @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- e1 _' _3 L/ l) }+ i6 Kset l (l + 1)) o& }% n9 B/ ]- t
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end6 A! S$ v; f* t/ S- W! j
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to update-credibility-list, e1 ^1 A/ l/ K
let i 0: B$ c; h6 V9 f( w9 h' @- r
while[i < people]
. }, D) N- j) ~+ K1 p[1 G8 H, W9 M$ L: s
let j 0
' M& T( U0 g, flet note 0
! a1 w! R% Q& E- b& `) qlet k 0
$ D8 t' f0 P# x( t$ X;;计作出过评价的邻居节点的数目
1 q; M' F& ^5 ~ [5 i( lwhile[j < people]
1 ?2 H) l5 }5 }8 R3 s. Q: {7 R[
' O- _. c" k4 C. E. B0 s# h" s( g7 Hif (item j( [credibility] of turtle (i + 1)) != -1)2 ?! U9 E' b- E7 d; J/ S
;;判断是否给本turtle的评价质量做出过评价的节点% u" M1 g7 L& i: f# R+ S9 L
[set note (note + item j ([credibility]of turtle (i + 1))) X: @& `4 f- w* t- f) ?% U8 E: U0 w1 P
;;*(exp (-(people - 2)))/(people - 2))]
+ p5 F- z- B; S- t) B7 V* A: Rset k (k + 1)
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set j (j + 1). @- ^- a# _: Y0 d
]9 I6 O F0 g# _9 x
set note (note *(exp (- (1 / k)))/ k)
7 Y- V. D0 {6 l( N( u; pset credibility-list (replace-item i credibility-list note) B4 x& i4 i9 t
set i (i + 1)
- ] B" W# m5 ?7 ~( y]9 a2 h9 a. Z9 P0 P
end4 n: R/ g* r: f5 J
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to update-global-reputation-list4 ?2 u+ p, P! Q/ q# w6 q
let j 03 i7 P9 z+ R$ W% G) e7 M
while[j < people]
5 B5 H. A7 D' _0 U j& P% t[, u: H2 i: n5 `, ~4 K2 t, G
let new 0
! E& V5 @( W5 R;;暂存新的一个全局声誉' S. S4 w; @0 A# E1 N8 }
let i 0
1 h$ e+ O+ Q/ S% O! qlet sum-money 03 h, W; a" A$ S! E
let credibility-money 09 p2 g* |( c; M |
while [i < people]
1 A- b& \' E2 w" @$ Z5 \[3 u9 b+ o" i: u. c0 } p/ y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 S* I6 l( d t/ J# s
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 f7 ^6 C7 a4 d5 G$ }
set i (i + 1)
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let k 0! ^) v& [. w- b$ Z0 M5 h& d+ H
let new1 09 C' M) h7 L7 D, t; \
while [k < people]2 r2 |$ i2 p0 U" H5 a
[
% j: Y: c2 J! n3 Y2 c6 g3 h3 Zset 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)* O0 ~$ T) W( r3 P
set k (k + 1); s3 {$ ?0 N7 i( ~
]: ~7 [. r/ D9 N8 @; O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 C3 K! ?; g% X* H' f6 j( C/ ?! g- sset global-reputation-list (replace-item j global-reputation-list new)
$ u+ A2 Z1 k. N( g0 b( ]; ~set j (j + 1)" Q1 Q$ a: J( g- P- ? ?. I
]
0 e9 U" x' U o( N _3 ~end/ A R) T/ \6 l# }& C& n* W
^) @7 X- ~+ l: M, L
! H- n: Q4 |( c7 N7 q* v2 V
2 {' b2 b0 A8 F7 Uto get-color7 c3 P" y4 a- a+ w. G# J
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set color blue
: m! E" P. w" _# s+ m6 lend
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$ J3 a! e8 y7 }' T2 oto poll-class2 v2 j0 x2 q8 Y0 B
end& Q7 X4 V2 { E" l3 F! U
z, T/ M# [/ f1 B9 T
to setup-plot1
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9 B8 }: K) T$ O: mset-current-plot "Trends-of-Local-reputation"2 E. l: F. q. \
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set-plot-x-range 0 xmax `$ Q: }$ t3 ?4 B. I9 b
8 p& q/ _9 C) q4 I h
set-plot-y-range 0.0 ymax
% R- l! r1 b0 t# j# ]: |6 Gend
5 K7 s/ z# |4 r& y8 E$ r
2 H( Z! }/ V' Y8 e' fto setup-plot26 b+ u% W0 T' ] f6 r5 P
* u( _! u0 x1 r1 g
set-current-plot "Trends-of-global-reputation") T" y0 i8 ? t. k( y; Y: D
& k" n" N6 w4 g' j+ iset-plot-x-range 0 xmax6 R" T9 |) g) l# A ~! c
% b) i& E2 {* I2 o t% lset-plot-y-range 0.0 ymax
2 Y7 Z1 J. l3 i2 ]7 ]end
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7 ?8 N# h/ L" L$ p6 w( Xto setup-plot3+ s- }$ k, \; r9 K6 p
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set-current-plot "Trends-of-credibility"( p; i9 r$ I6 ?; R6 ~# Z0 I
* c0 z Z' h; j( M" oset-plot-x-range 0 xmax7 ^5 f/ \- b T# R
* j/ y" ~# _$ y4 M5 Y1 ~
set-plot-y-range 0.0 ymax# m( [" G- A+ T: c+ I; L/ W1 ?
end
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% T' ]' ]0 `1 Q0 |' b$ C0 V! Z+ Lto do-plots6 \" A$ G; ~$ q2 G! Y, n
set-current-plot "Trends-of-Local-reputation"2 n3 C& R8 |! J; }3 j; j! M
set-current-plot-pen "Honest service"
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! y7 V7 \/ q4 O2 p1 J& [6 b$ q4 ~[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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