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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
8 C( u0 Y3 I2 ~3 p5 R4 y+ b [globals[! P7 i# T/ p. C/ q5 w; {; G" m; _
xmax' O5 n6 v3 O/ {4 t) r3 b
ymax
& k$ S6 I; D5 X9 Eglobal-reputation-list
2 u1 m7 `& h4 j/ j3 m. y" c2 |( Y" I" f* S% }2 w U+ `
;;每一个turtle的全局声誉都存在此LIST中
( B" I' e' x' d4 Lcredibility-list
% o8 c7 e8 w! ~1 a+ B+ B;;每一个turtle的评价可信度
% K \0 k8 I, h- P lhonest-service
0 ~. I! D( B& ~- `5 m& ?/ Zunhonest-service! j/ ^8 i: t9 _& T% j% f- p
oscillation/ a+ Q# s3 d; B" t! o: y9 c
rand-dynamic& p. B5 D; J+ L- y$ w
]& d5 A& D2 T3 s9 E; z4 J
# H; D I! r2 T3 B8 @turtles-own[/ j \5 ^8 p5 p1 e% E' A
trade-record-all4 g) O4 S% u+ ]. d5 M! C* G
;;a list of lists,由trade-record-one组成+ `! L* e) S2 s* S, f5 x0 E
trade-record-one2 o& H9 i3 I0 k4 z. v+ e) a
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 T* D' `4 ?" o: O0 r/ t( |* f# Z/ n1 U
2 p- |) L4 ]: h' W. z( S;;[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]]
& a! k8 p/ q* e: gtrade-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]
, z1 T& I* C6 u/ A" ~; ~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
( q3 u& R* G* qneighbor-total
) N7 ]9 X& P4 j) m;;记录该turtle的邻居节点的数目1 e& g; p. K* i4 l: H! o% C
trade-time$ G; T0 {6 D2 N& w& U' N: g: @
;;当前发生交易的turtle的交易时间4 t6 q$ D( [. O8 Q6 J5 T
appraise-give" O$ i) I* G: [ Z
;;当前发生交易时给出的评价
/ f6 A" E/ S% K! s: lappraise-receive
6 N( H& ^$ I- \% d;;当前发生交易时收到的评价5 l# i* |" N/ _% x0 N, a* S
appraise-time% P0 u4 j4 }' q4 u- K
;;当前发生交易时的评价时间6 V) |6 k, U4 O, P4 s7 A/ N
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
, z3 w) Q( x/ ]9 H0 k( Qtrade-times-total
1 I* z& H( U7 w;;与当前turtle的交易总次数% V0 `- ~' E; Z: E
trade-money-total
) X0 ?- m. J, G;;与当前turtle的交易总金额- T3 I0 p3 }" g* t: g
local-reputation) W; M8 h M8 u, B1 j( p
global-reputation
" d2 Z* d& X7 [5 I; [credibility
' Z3 R1 a' n$ B! J;;评价可信度,每次交易后都需要更新
% g8 m* l& b5 }! k6 vcredibility-all
, m7 `7 q3 f: G7 Y+ N' Q;;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& @7 a/ G) Z% P; {/ Z* |; f) o
4 V" F0 I" L+ 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
. F: U2 m" ] r; |5 ycredibility-one
4 r" e! o0 Q* x) \0 S;;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
& ~. j! H- u0 H* y9 z3 m! m5 Eglobal-proportion2 C0 A8 a3 c, U! f* [" A/ F% r2 q
customer
g' `8 k; { L% y6 @8 B2 ~customer-no9 l) {! S0 j) F; Z- d6 ^4 o
trust-ok
3 Z; X, Y- Z. M2 u+ O: n5 ^trade-record-one-len;;trade-record-one的长度
" y4 b# j% \3 X]# ^/ T1 Q8 D) E6 l% L/ i: U2 i
. C6 a( A, I0 a* k$ @;;setup procedure
- \, T9 H$ t( G/ z6 R L% Y# Q! S
% |* E. l' N" [$ Vto setup
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ca
, S; k: ?- G# y0 [- d) d& t" z Q
# W W- h& ^* I9 }4 `* }3 @( sinitialize-settings3 c+ b7 u8 y$ F5 b& a& S
% k' x5 y6 X' C9 ]- ccrt people [setup-turtles]
g7 e1 {, j" D( B2 s) q& V+ X$ R
reset-timer
7 x6 h0 Z3 k4 P/ k. x( l, j& m; Z5 i! W/ I* V
poll-class
, N) `( N6 X) n; q/ t. W2 _6 o. U% D6 K3 S
setup-plots7 ~4 z! W; P. B# \% Y. R9 g5 b
/ U: D; E; e- q" W, u
do-plots8 \3 E! R# n) m! l
end; E0 h, V& L/ o3 I( D: t
7 I- h) X' i O6 R" U7 pto initialize-settings" L! a% V* L W2 \- S3 K6 c$ N |! r
6 [5 o N7 N7 S- w5 S" L+ F
set global-reputation-list []' p1 Z( v! ?# H+ x0 w
5 j5 d5 `9 N" Q! g' c" l2 i
set credibility-list n-values people [0.5]: i3 P5 ^ ]! ]3 e- D2 I1 z
8 `7 U' T( X! N' d# @- ^7 i8 ~( Uset honest-service 0
* ]- Y' _% K' S
: d3 w6 a9 q5 `set unhonest-service 07 u9 T. ~2 D, W) J1 f0 @" N, n
. N) J, f5 h4 }/ u
set oscillation 0
1 H) h, a/ u3 B: X- Z
2 w- w7 T T1 {6 fset rand-dynamic 0
3 b% V) X3 I. K8 g& ^- Oend
/ T( c7 a- i% Q3 V$ e S
$ x. _, t5 x- W I9 ?to setup-turtles $ W4 H! ? B/ t" `
set shape "person"
2 ]6 W) V1 c2 P1 L9 asetxy random-xcor random-ycor
( n4 }. k5 \' |! b) l4 s Wset trade-record-one []! ` C( k- _0 Y8 q: {
: X$ L$ a [* |! A$ Kset trade-record-all n-values people [(list (? + 1) 0 0)]
$ R8 u; w/ ~4 Z1 }8 p& e+ E9 `
3 c# k2 |) n, T$ \( X& K4 c u. Lset trade-record-current []
- I* T- H: u- `set credibility-receive []$ X, O8 L5 x1 P+ C
set local-reputation 0.50 ]- f/ {: q9 j* o6 Z
set neighbor-total 0
; ]' E8 m3 C; ]' v; `set trade-times-total 0
L+ I4 P+ k o# N% {set trade-money-total 0
' v# d; m Y. I" ~" r) Gset customer nobody: i! O' A; I. h# R
set credibility-all n-values people [creat-credibility]* _' w! z4 J, G+ Q& x
set credibility n-values people [-1]
% x6 I: v' C& ?: ~get-color, Y7 v& C2 w4 B& [' c- V$ k
, [' [! c+ z2 C0 k4 p' n5 D0 @end
: b; o) B$ o' B# e) {, ^9 |: x. v; T% I/ W
to-report creat-credibility. Y4 t' Q. V! k1 P
report n-values people [0.5]
% U! r' @" d, g4 N: [; t8 fend+ m0 `8 G# S8 u# }2 `3 e. O9 x: B
2 O6 e8 J) }3 F
to setup-plots
+ Z" {+ O$ |. l# M6 R$ U5 U% s, s5 w0 J4 W3 A
set xmax 30
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set ymax 1.0
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clear-all-plots' w) S5 }# x+ {* G3 z- N
9 U. K9 k) E" R- Fsetup-plot1 h/ `$ S( T1 t- g6 R
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setup-plot2
* |! ^" v2 g7 n
3 P; t( e8 T/ _9 \6 B# ?setup-plot3
- G' V3 \# ]" i0 |+ aend$ P3 B/ T( v& j. J# c6 s
3 J7 F# ]9 ]: t G;;run time procedures
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to go
8 ] q. p' g2 e p
$ _ d, a1 |9 ]: Kask turtles [do-business]
' Z% h2 c8 a, v, U" qend
% g# h( l8 f$ I, [' s5 c5 H
9 L5 _5 F. o& z# A) d9 D$ U) Jto do-business : X7 v- `: t+ W# ?& p3 [' E) i$ N
" e5 B1 \9 y, m- E' r6 n$ W2 T6 J& C7 j: r0 c1 G
rt random 360
* s, I: P2 h$ [: b7 u$ `3 G3 I5 f- ?( r
# ~% f/ X' V. r0 x$ H& Qfd 15 K$ ?+ D0 x5 f3 B0 X6 x
0 W' {( C3 D2 x- D# z) O7 A" e
ifelse(other turtles-here != nobody)[) o$ Z" j6 ?; t$ C. a, H0 q k
- b, f9 ^. r/ T2 B7 x
set customer one-of other turtles-here; f/ E$ {. t% X9 x3 T3 x5 `
; g. o/ R s9 b' _ A- a6 k
;; set [customer] of customer myself5 x' R/ A8 ~: [5 V3 }* `
) D; P* x8 _ `9 M, y
set [trade-record-one] of self item (([who] of customer) - 1)
, m. V" i. i( Y, }7 E[trade-record-all]of self/ C6 u; a* B/ @! Q* m& _
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 W( Z* z/ n o# E% u. I: N% s: P9 M6 t5 }+ \1 J3 `
set [trade-record-one] of customer item (([who] of self) - 1)$ x/ D0 @- E- U
[trade-record-all]of customer
' l( k- \, |* t# L5 ]% B! @
% `" Z. S/ E; t( ~9 dset [trade-record-one-len] of self length [trade-record-one] of self
; [1 r+ m1 n, @# z7 ]9 U; }
6 F, D# r7 o" [4 _set trade-record-current( list (timer) (random money-upper-limit))7 R5 Y$ q+ i" l |. s+ H) Q' a$ \
2 ?. Q+ v2 H. k0 oask self [do-trust]
! [! w, |6 Y' f# w2 P;;先求i对j的信任度8 X- u5 t: c( C
' \4 g0 t6 q4 `% r9 f0 [& z( f1 i
if ([trust-ok] of self)
0 i3 v* S t$ e1 q( ~6 @% e& w# |1 O;;根据i对j的信任度来决定是否与j进行交易[
' G( a& T6 W# |% y" W$ G9 x L4 bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 {" }+ K! m) }; h
2 y! t j0 V7 M[4 g, j' h# l4 h6 ?' e& m
* e8 D3 h9 p. e# x7 a. T6 S% gdo-trade. X4 x& c3 g( X! q$ D5 x6 @4 C' u
, E6 T6 E. d3 ~( Q* d+ h
update-credibility-ijl
( w& X5 [9 Y4 f0 r: J" j ~% N& }9 L/ }& |; }
update-credibility-list
0 u+ H- Z3 N2 `( ^! J8 V% O ~2 O C" b# i- h- B$ ?/ L
! E4 ?6 A! i6 l4 j% J7 C Hupdate-global-reputation-list
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poll-class
+ F8 ]" G9 u1 Q2 @! }3 i, q7 ^% W' A5 \3 ?' e/ e
get-color( N0 ~2 |& `3 v: N6 |; Z& l
. I! x- m: M. h. y4 Y
]]
' z' U2 a7 j, V! l
4 n/ E8 g/ @1 s8 n;;如果所得的信任度满足条件,则进行交易8 H0 `2 z: P6 `9 K2 z/ V5 ~$ J2 S3 v
# X! u# y/ F+ a+ E
[; g4 R6 o* A' V2 H5 Z) F/ b% `
& F+ g! `$ D! Y: a, L$ }& ]rt random 360$ A) F+ `' s9 ^$ g+ x
4 c: s$ L" E1 @* nfd 1/ R6 E* o( Q' @8 i
/ o5 E3 T E9 d; o8 X$ X- L* q
], @9 F) D7 V5 V' h6 a6 u R
5 y0 T7 l; L0 q. D
end
) i8 x7 f B4 t6 C# E* |2 J! z5 `- m6 k. Z) I
to do-trust
9 p1 \2 Z3 r3 {3 V$ Xset trust-ok False7 u" Y# \, Z$ d: H
: R& ]$ w2 T1 Z
- ^! ^9 H# W& B1 l' ]; [let max-trade-times 0
- R! Y! l0 [9 k) ~. |6 M) `/ Iforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# F/ A8 i1 |6 k5 |% ?* a3 O
let max-trade-money 0 I% \1 z) j0 g! e
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 q, k0 S" o" {) Hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" X1 B: h) j+ s# U
& D9 t3 h( K8 P, X; h1 ]0 F( D& X6 k" l6 ^. o% |: C1 _
get-global-proportion
& {4 g: K$ y, }$ N9 e% ^+ s/ clet trust-value, x g& `: I4 |. y
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)4 w; _4 h7 S5 T1 _4 \( s* G
if(trust-value > trade-trust-value)
5 {& L3 k( m- k; z[set trust-ok true]5 X. d9 N3 H' O. {; }
end0 @0 b" H, z! u9 [8 J5 C" |
0 I" i5 [. h9 n: S1 C3 ~2 c9 d8 ?to get-global-proportion
* S# W& J5 J# {) y! _5 B0 x5 Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" Z4 n; d0 g0 z: a+ R. r
[set global-proportion 0]
; |1 B8 F8 |) l6 G$ a[let i 0
( J. n, V1 \1 V2 |7 @ }( a; P: O$ ilet sum-money 05 Y3 l9 y/ o/ l8 @
while[ i < people]' G+ ^! t% z- X
[
/ N* O8 W5 D" S2 t# D7 z- Nif( length (item i# x; V; H* j& }& F0 g0 B7 G/ i
[trade-record-all] of customer) > 3 )5 t. G# M+ i. s1 m
[
; i6 z1 b% {# w# L0 j, Z! H4 jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 r1 |2 w2 Z, ~5 u7 w
]3 D2 S, }: t( ~7 U5 F8 ?( H( E
]( w/ i6 P# k5 A1 b: T, ]
let j 0) [. \6 f: J: Q$ }. r1 M1 z
let note 0& @4 ~0 G- R0 j+ i( N, a
while[ j < people]5 X/ Y; E4 \! t( W0 F
[1 }' j3 D+ I6 E/ Z: a
if( length (item i' @) |% j) D# _+ {6 E7 a
[trade-record-all] of customer) > 3 )
, ?. I- ~, z! Y% Z; `[
0 F+ c* a. U: L0 r* S3 P. A( {0 fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); R# ^0 Y8 P0 G) N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- w) N- m ~4 ~, p( G& W6 p[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& l7 l3 O& `) U+ U# ^1 H! A8 z]
: U0 T! ] w% U. h3 n]
* r3 ]+ u. Y7 S) Z7 T) {set global-proportion note
4 o& ~1 J. c, f% W3 c2 h]
- P" G% w9 D* w+ k+ F1 b2 Aend
, n+ j) M- ]8 I+ K7 e# K/ j H2 F4 a" r6 y5 Y# k2 P. _
to do-trade
% V2 t Z* q G/ l8 i;;这个过程实际上是给双方作出评价的过程
- Q( L2 I- m0 G3 J4 s0 w ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: s% l- h# m, V, n' R J& q5 h
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 d2 v* q8 I5 q x, b, \9 V1 k
set trade-record-current lput(timer) trade-record-current7 M! Y9 {- }6 @' K7 I7 j
;;评价时间
5 I2 y. N( {0 m3 ]ask myself [
% ~6 U+ h X5 `4 D; P1 pupdate-local-reputation% X; f3 R6 ?2 T D
set trade-record-current lput([local-reputation] of myself) trade-record-current$ O6 ^) K+ E7 x; w; `
]
! c+ o) [* |5 _+ ?! s3 qset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ L- I4 o( r+ x2 m1 [;;将此次交易的记录加入到trade-record-one中8 D5 I$ j- L n% p/ E
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
3 ]' @+ ]& W% F. \' r* `" w7 s5 U* Klet note (item 2 trade-record-current )
! m5 h8 ~* R, Q' oset trade-record-current( J- @$ u, f$ O$ ]6 i, H/ \7 k
(replace-item 2 trade-record-current (item 3 trade-record-current))) ?0 U( L1 W. p" o! A" |& [
set trade-record-current' r! E: l& g2 m
(replace-item 3 trade-record-current note)& z M# m- O: g: [9 B
7 H( g) Y' Q- |7 B4 O3 ^4 Z+ U1 `
! h. U0 j- u& Q8 ?& S0 W0 task customer [" h3 z4 \9 \9 X; D* W. K
update-local-reputation4 q+ a, O/ h/ R
set trade-record-current l6 E# j1 U! V4 V6 s3 M4 _
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( E) K" j1 V5 u4 N]
; `3 G1 M5 g0 c& b/ e2 v% M) X0 _# @% a3 o" p7 }5 H7 o4 m& P
. o( E. G- a9 _( r' p, Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: Y" E$ \# L% Y, M2 F, d) }
% u: \0 a/ f, c7 l$ H3 w& Eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 r- Z7 s9 C' @ Y/ _7 \5 Z;;将此次交易的记录加入到customer的trade-record-all中
' r% S' }# E. m7 K2 Dend
6 \9 d; Y6 K, W: [+ l* W5 m/ f( G: O& r) L8 L
to update-local-reputation
& p3 C/ ]( W. l1 B4 v4 Q' ], Aset [trade-record-one-len] of myself length [trade-record-one] of myself# t; F1 W# g' w: V
# t2 |/ p V3 w- p ~( f9 O0 G
+ y o, `: }* G;;if [trade-record-one-len] of myself > 3 % R0 K+ L/ g4 n/ W% N0 f) E
update-neighbor-total
9 `! Q+ T7 g* S* G;;更新邻居节点的数目,在此进行
0 S/ ~5 F2 i7 b# K/ Y0 ?let i 3' u0 v8 V$ o+ A2 n" Z* f2 Y$ d4 Y5 e3 R
let sum-time 03 b5 v+ e0 @2 _( z3 P7 E* ]
while[i < [trade-record-one-len] of myself]
7 b9 b3 q2 R- S5 c" {' k' l# n[
$ z: `+ `4 U u0 @! H" Rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); }6 L' x0 H& ?/ _' F0 g" u# P7 {
set i
/ L# n2 i$ W. J( i + 1)
7 j' O4 ^; G |7 F: L]
: L0 k7 E8 t3 S8 [! Rlet j 34 L; f" m" `% E# h1 `0 o$ z: v" O& ?
let sum-money 0% {* r( i; B }( ~1 F
while[j < [trade-record-one-len] of myself], R: T+ o0 Y, X
[0 x9 w, d6 _' U+ i
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)0 u5 g+ S# u# U1 a
set j( W) R S* A$ V( s. }' k
( j + 1)) X* m! S) m% V- J0 \5 S& {
]4 r8 n/ S; F( g/ q5 Y
let k 3
1 U2 w+ `0 H) v$ `let power 0+ k7 d" S5 k: |- r5 K7 X+ U5 t3 F
let local 0. J; c$ c( j4 S7 Q" ~- c& W
while [k <[trade-record-one-len] of myself]
$ t! O6 H0 c- W* I! v3 ][
6 H4 D1 V6 l$ A( L j" pset 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) 7 N7 e0 K, Y( e6 p
set k (k + 1)2 K9 O- t) Q6 W/ C. w
], v" s t, p+ S6 R0 ]; \2 T, o$ ~
set [local-reputation] of myself (local)$ W- m) P4 [5 O' [ y i0 M: c
end1 `# f# s6 I' Q0 u( L" W
% d2 {# H; D7 Y" Y4 R" }
to update-neighbor-total
7 G; H; ?! h* _) q, T/ R: j; R+ K5 f: `! U
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" |) }0 l3 X- H Q3 r, ^1 n
: J" k6 I0 ? |. N
) b4 L7 b5 E( o& g$ S- x
end4 z: F5 l6 i1 U5 P+ s6 t8 ~# G" r
. i7 n' B# m/ g# ^4 a* @7 ^to update-credibility-ijl + O% X; U$ u# y: _( |! j
3 \0 D0 k! i! g8 z; r' G' Z;;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。6 b; M) L2 H% N3 S" ]
let l 0. x; q9 n0 o) F
while[ l < people ]
~$ J t; q; K4 w* t;;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$ ^8 |. {% O! i* V- Q' J
[
0 X9 K! g2 b1 L$ P. O1 Slet trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 P6 s, B) C R0 n
if (trade-record-one-j-l-len > 3)
+ G5 u7 Z5 G* |- f3 i; c6 U2 A[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
1 G1 g2 [- X1 \; r6 n. \# ]+ P7 Ulet i 3 z" A" a& P0 N. N7 {" l
let sum-time 0
* _* `' M0 h& L. H" k% @/ U6 |while[i < trade-record-one-len]
+ N0 X$ L% H( f6 F; t/ ?1 c( O[
6 }. X' q) [6 V( |; f. S" |6 cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 s0 v0 U5 b# T
set i
1 q) c4 _- `5 t( i + 1)( a! g+ S3 P% H5 @0 f9 U1 s
]
( ^! [. v% H. N- _let credibility-i-j-l 06 }2 Z) ?# T; ^( f
;;i评价(j对jl的评价)
9 V& [9 P; V/ D1 O/ j& _- A$ n9 ^4 zlet j 3
/ M8 O# n7 H! A) dlet k 4' U# i! c2 H; [0 }8 m- j
while[j < trade-record-one-len]- U8 y* Y1 \, F5 |; j, e9 U
[
U5 r5 R* U- Y' s9 l# M0 X' Swhile [((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& B1 r6 ]* K3 c8 Oset 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)
) n( T* t9 L# n) x8 Bset j
- |: Q5 a4 R0 P _6 ~0 ~! t! G( j + 1)& f1 N0 X! i# e( u
]* {* f \3 u- w$ G8 u. P
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 ))" V) Q0 t! w6 Z6 N
$ H9 t6 k7 u0 W" O; B7 {. S' X" ^2 ?9 a- H
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
J* ]! o9 x7 Y. p- s;;及时更新i对l的评价质量的评价
1 e& U( A- P" b" `+ z$ `set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* u; | v3 n- {- f$ S: ~& c4 v
set l (l + 1)
: ]3 S+ t) f0 t9 E7 n]% |& E. x8 f8 p# n
end
! R: B* ?8 H9 ^! D( Z8 d @8 R! \, u- f& F
to update-credibility-list+ n5 c& ^9 {6 X
let i 0& A/ X# V Y _& G v5 ^
while[i < people]
- s, r/ Z! @: V& M; P2 h# X[ `( H- ]$ k# }! v, a8 o
let j 0 E7 Y. ?6 E" | P9 h2 e4 Y% P
let note 08 l9 e' K7 O& d8 @& U; E' h6 B
let k 0
1 e" j9 I- R& l8 e5 Z;;计作出过评价的邻居节点的数目
: I" e9 q3 @1 [, H0 Y" R3 qwhile[j < people]0 c4 c6 ?$ Q1 k& v# E
[
, Z7 |6 G/ ]9 I+ S6 |5 [. R$ B! @$ Jif (item j( [credibility] of turtle (i + 1)) != -1)
; H4 X U$ N2 T: ^;;判断是否给本turtle的评价质量做出过评价的节点
" b% V. T1 M% ~( Q[set note (note + item j ([credibility]of turtle (i + 1)))/ a" H+ E0 z, K4 N/ I
;;*(exp (-(people - 2)))/(people - 2))]7 A' w m- o3 u K; o" i
set k (k + 1)
$ }- A/ B& ]" Z7 R]+ p3 Z: {; \ q2 P5 k5 b. o
set j (j + 1)4 N" j, h* c- U4 C. g2 q
]
' u. D, r0 u6 r5 w$ ?" R1 [2 Sset note (note *(exp (- (1 / k)))/ k)* \( X d/ M+ w, z+ X
set credibility-list (replace-item i credibility-list note)
L4 ~0 [3 C% D- a) V7 ]set i (i + 1)( U' U8 b# |1 u1 ]( i# \& w
]
7 u) |4 C" W2 J$ c) Kend
7 G; R: `6 ]( l
! C" n/ G1 N( bto update-global-reputation-list4 n/ h% T- B8 `# V) |
let j 0
1 T& `4 n- K% V0 U" \3 y2 C! awhile[j < people]
0 `: M( W! d1 g+ }[ K' `. s4 V+ M* _6 O% h
let new 04 P4 ~+ o+ q5 Q- c B: v& k \
;;暂存新的一个全局声誉1 G. w k4 s- [/ B' j
let i 0# _# n; l+ K: A" W' w- ^; J
let sum-money 0
% Z% f9 {1 |+ S9 A- `5 s4 O0 ulet credibility-money 0
# d; E( ]4 ^9 @while [i < people]2 T! H3 d1 X0 j2 J8 W
[
3 ?4 E' j m) V& o( ]# S7 j# Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); Z. a: c# W$ Q5 G, R
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 H# F5 J: P9 Q, x$ Sset i (i + 1)
4 ~1 O9 N4 w+ p4 D3 b6 c]" w) z e8 {2 y3 z7 v- F$ g
let k 00 L9 T: I- i! V. _! `
let new1 0
4 N5 b- Q9 [& _. B: Fwhile [k < people]9 u0 g8 X( v i( T2 d6 R
[0 I& |6 l W2 N9 o% d. ~. [* x6 t" R
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)
5 G9 o2 N8 o* W$ Qset k (k + 1)
: X0 ^- P" C6 Q+ Z- b]
8 d1 V8 u4 s- v j- P: Q. Zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' Y' n/ a h% ~4 |/ {5 Kset global-reputation-list (replace-item j global-reputation-list new)7 X5 _) c" O; G9 s9 V' i, u7 c3 n8 u6 n
set j (j + 1)
% |3 p8 F: r5 I _; W]) J2 `$ M6 O4 t
end+ z/ s+ @ D2 g$ G( C5 _ Z
, z: V# X# G9 E E/ b
2 L# h* m- D( ]$ X3 i
2 n7 ], E. L8 `1 ?" G0 Oto get-color
0 ]; w+ y3 ~. d7 }, V! \9 x
- _1 Z: ]/ K5 S6 y/ v% I# k) `set color blue+ R* r! i) q0 b2 d
end
) M: \3 ]- A, s3 \ o" n
2 u0 s* S+ Q- x) Q7 i# h6 xto poll-class
' ~0 V% J) I% ^$ [0 e7 a9 J# fend6 D1 ]: d8 `$ B( ~5 h$ `' R" w
9 N, u" f2 `8 V' z4 b8 o/ {# |% Kto setup-plot16 {1 l+ |* o! B( P1 H1 C4 w- E+ c
7 T9 |. Z6 Y: i! y, k0 Gset-current-plot "Trends-of-Local-reputation"
# q( d& n4 c. Q0 [
. ]% y) g! C- Q& ^+ E* u( E" cset-plot-x-range 0 xmax1 z: M4 p$ y- p8 g
4 ]) T$ {$ k% Y/ |7 J2 Nset-plot-y-range 0.0 ymax
7 l* _* ^& n$ q% rend& ^8 s1 B, I; p+ ]0 ?" ~
; F. C6 ~* ? v2 S5 \+ |to setup-plot2, ?0 M3 u/ a* J
" O) _ W" V1 ?4 H1 E$ \set-current-plot "Trends-of-global-reputation"
: [) p( f8 c- i& [/ b
" ~3 V4 t J& ~' _set-plot-x-range 0 xmax- @( _7 N9 A! c! g1 l d3 |! I& R
+ ^" Z9 f! L$ ~set-plot-y-range 0.0 ymax' k0 n+ A S% {0 Z
end
4 N {" W5 ^# H1 r5 {: D1 A2 S Z
7 P& j- p) w/ @! b4 Sto setup-plot35 L! P$ z% |! f# _5 Z9 l z; L
8 y& N- c! e) J3 l* k
set-current-plot "Trends-of-credibility"
/ x9 H, W( G# C' b; ~2 c3 r
9 n2 C: }% T9 C* B9 u4 S [set-plot-x-range 0 xmax' V8 r9 h8 O6 A7 @
L0 |0 Z7 `. v$ }
set-plot-y-range 0.0 ymax
* X( M0 m. Q( S5 ]9 n. Q' iend
: x6 C( Z) C3 ]% x! s9 Q6 M/ q) ^8 `, Y; ?+ ~, ^
to do-plots7 E9 I/ c$ Z8 i9 j, m) j3 {
set-current-plot "Trends-of-Local-reputation"
3 n4 i0 p8 L1 K: w& B& v% }set-current-plot-pen "Honest service"% U$ ~" ^- S2 T3 V
end, g$ m/ G" ^. S; b" {! i0 d: }
0 |$ Q+ [% S- X0 j9 q$ F
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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