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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
1 L s. w* s$ {$ I- Kglobals[
/ i( R1 {# e- T$ y* |xmax
5 ]9 t x# w6 j6 kymax
" [- h2 D( x8 n. ]global-reputation-list
0 W- f* Y0 m( z3 n6 U8 I7 D8 F* M* L- K
;;每一个turtle的全局声誉都存在此LIST中
l# c; V8 R, P% G, N7 gcredibility-list
7 ?0 \( T3 E" T;;每一个turtle的评价可信度& J3 Y$ l6 ^# s L
honest-service
1 ~3 J' H) A6 G. ]& e9 punhonest-service
3 E7 `8 @/ o' E( e: X& a% {; t) _oscillation* N! [1 T' v4 P# d' D9 k
rand-dynamic
% |3 u+ P! D( n" P [# k$ Z4 M6 ?]4 d$ m# |# w# d+ o' Y& k( M) J
; _" Y$ R; l; k3 \0 h( _turtles-own[" l$ a' |6 e$ J/ U
trade-record-all
+ t, n! p& H. ]$ L! n;;a list of lists,由trade-record-one组成: o" s* O0 R% ?2 p0 y! H
trade-record-one5 W! t$ |; l& w3 w! ]
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ I! }" ]6 Q7 j6 ?7 k
: T: n$ f L1 A" v% v;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
: V) D9 }' U: L D6 i/ etrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
! e8 d) O' x( r5 Scredibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
$ {1 U7 x3 B* |) g+ Ineighbor-total
$ q0 k) M. y% }4 a& x;;记录该turtle的邻居节点的数目
' ~/ F4 c. Q, @trade-time4 @6 f" W0 C1 Y% S% a
;;当前发生交易的turtle的交易时间6 g: s3 i% G4 j$ w
appraise-give* ~: z' |1 k* Q! @/ X- E4 j
;;当前发生交易时给出的评价6 H( V4 Q- u C! p
appraise-receive( T2 x7 J \8 K' q% ]# R
;;当前发生交易时收到的评价
' A {9 ^' R/ B# q% V9 [2 i+ \appraise-time( w2 d) s& I, H6 \) v/ a
;;当前发生交易时的评价时间" ^ x" b, |3 ?/ P5 w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( @# e0 r+ C+ O- D0 z6 r
trade-times-total
8 K5 h, R/ ]4 a+ @;;与当前turtle的交易总次数7 a: ?' y4 U5 D: x! X0 V
trade-money-total( z6 `; a- ]$ X) S2 g
;;与当前turtle的交易总金额
- u+ S1 N3 \. i5 n2 |! N: s, Llocal-reputation
, J: B, {4 e3 Rglobal-reputation
5 a3 i, O' @- L+ {* k7 V) Scredibility
( z. ^. K+ a/ S: \0 T;;评价可信度,每次交易后都需要更新
# {- s" @2 A/ @/ L2 bcredibility-all, q. x) n0 H# f5 U5 G) O
;;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
5 x# C" Q8 j. D. g8 s- p( O) R) k1 C. ?/ s- H1 ^& R+ R
;;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) e; O+ Q9 X3 c. |
credibility-one
1 ]$ A+ }- p4 ~: k4 g9 W Z" v. a;;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
$ P+ H/ p( N6 P# I P. z7 ?global-proportion4 Y/ B2 Y( e* ?2 }$ P
customer
! ~$ _% a/ a- ~' b% [customer-no
7 G1 j. G) P. `. P, W8 t% E; _trust-ok
; n% [) `, F1 a8 |3 O, Strade-record-one-len;;trade-record-one的长度
Q" ~4 T* x3 L6 ]]
5 T. V( T7 v: {& @9 D
/ A0 N& O+ o" y2 q$ M$ r5 a;;setup procedure
, y. ~: r/ S2 ~0 z' {- q% v0 g$ j( @7 U- s& K9 v
to setup
0 v6 K3 q8 x! w6 _$ Y4 h7 k) m& `3 {1 v$ \
ca
$ X) p! G( Y7 X9 K% p5 R0 O4 k1 l1 x9 i7 y0 l
initialize-settings! s$ ^) O" h* @' l3 }: ]
! \/ r d2 v) |3 M3 k- ^' f) t
crt people [setup-turtles]
, S( a" }+ V0 u
& W( \; M0 v5 H- Qreset-timer
+ ^0 h3 d6 I: w, n
; s/ I) r, E# C: P3 N9 H: hpoll-class
7 G; N: k, P$ C6 A/ [- I. o
) U. d- U) _0 W Esetup-plots
8 l) u4 Z' b) l7 W/ L3 O
) N* |6 R5 }1 r$ Y& X( ~do-plots
$ Q2 e6 P4 u8 n) Lend' d3 t5 n! N, X( L% B: J8 N' R8 ?
. P% p& H+ q# k1 M7 w
to initialize-settings- C2 U. P) P! G. z
0 G5 Y# z6 \4 F0 }; N9 E
set global-reputation-list []; \: Y2 O# s4 |* o3 E
: V. s$ ]. O4 z: [3 E- D
set credibility-list n-values people [0.5]$ M7 @* j4 @6 Y
* l2 @& R; y$ s: v( a
set honest-service 02 I2 N J; @& `$ G
; ~# s# E- r- \0 sset unhonest-service 0
1 F2 \- ^9 `. H1 x" v; P ]- p0 r& C* V, I7 t* i. K
set oscillation 08 j& b! z ~; V$ k* s
8 Y+ C" d$ T( W8 K3 s
set rand-dynamic 0" i/ U U' g/ U7 {
end$ b5 V, @8 W' D9 Y! H% q& j
, J+ q. O7 t3 z" R+ \1 l' v0 ?; ?
to setup-turtles 0 Y, s# o4 ~5 u
set shape "person"
7 n+ r7 Z0 i* |4 K0 Y# Q; ^; psetxy random-xcor random-ycor
5 N5 {0 z( \' b% S4 O) N; ?set trade-record-one []
5 }- c$ F& T5 K' j4 i; z( T- ]* ?* F- t' h
set trade-record-all n-values people [(list (? + 1) 0 0)] , H5 t1 I9 I0 o) R' B) r/ G
; k- I! ]* E6 h3 `set trade-record-current []3 _7 u0 m) o! \# B. q
set credibility-receive []
4 J: w0 d% K* s! Iset local-reputation 0.5
q) J' l" i7 ^set neighbor-total 09 b+ G7 h# j! @! t. y4 ~% s5 |
set trade-times-total 09 Z. G6 A: p# n
set trade-money-total 0
! W$ w, q- |1 p( R, Qset customer nobody
$ B* e; P1 Z( n$ S/ Aset credibility-all n-values people [creat-credibility]
6 N7 E a* G& g/ hset credibility n-values people [-1]8 [9 b3 N0 K, c& W* |3 x' Y
get-color% b+ O; L/ c r' E
/ `/ Z5 ?& M' b3 Q: x8 r* send/ V$ C+ d1 ~! [
$ m% s, _; D( m8 p \4 z& K' u
to-report creat-credibility
5 c. K) u% a/ `- a* v Zreport n-values people [0.5]
$ x* Q/ A. j! Aend6 M' V+ x9 R4 ~4 d/ t0 i
7 K% y: O& q9 j, v( D w1 V2 S
to setup-plots
- U2 ^* T) b' L$ n7 B) p! Z8 Z* M& b- C7 n
set xmax 30
2 G5 v6 u7 U( N$ k( i9 t
/ v: r: [- E7 `# H# x. vset ymax 1.07 @2 T" G& v9 R
6 s) r: F6 A4 m% y8 d& k' O4 ~2 kclear-all-plots
6 B: Q8 {' Y; I: ~5 g( K
( h9 P0 Q% i0 {setup-plot17 H0 R+ w! g( M7 _+ A( O
1 ]1 i' p* ]% i9 N% M j
setup-plot2
4 T1 Y+ ^& E0 [. Z; P- {5 W; m7 V: T* y- f; K" @
setup-plot35 M; y1 @" A- }9 v, h; s* p& }7 \
end
^" }/ U$ v l& f( F# z7 v, G
- O& X3 |" B$ F, [;;run time procedures
8 B& E, K+ ^3 J# I) C7 L* @9 C4 C! D7 \7 Y, n
to go `, \% b# T1 e+ I3 l) ]
% V6 H/ u4 i9 I2 o( h! ~9 J8 jask turtles [do-business]
! |6 [1 f- z0 K/ ?: I5 o9 Xend
3 d8 T# |* q7 }$ W/ N5 T6 l A
( U+ v! k2 Q: nto do-business : g; E7 g V+ |& E- k
; v4 J4 m) c8 m# r
7 ?7 }0 E/ F# l% W3 O4 Art random 360
' ~. F- Z; A0 k8 p p+ J* m S+ y
( j( O2 ?. Y( m8 Nfd 1
0 e- u% ]' s9 u% \; \! l3 k( p: T
ifelse(other turtles-here != nobody)[, u, A1 X7 V0 S& o# T
" L% v" d1 j8 B2 R6 p) ^# Hset customer one-of other turtles-here5 C2 o2 d4 l, y$ i5 F, ]( U/ v3 x
' q( ?- M ~5 U& o3 Z& ?. C3 X; ]/ ?
;; set [customer] of customer myself
( g: @6 j4 s5 l1 O7 ?
) F% p6 |. o' D) }* Eset [trade-record-one] of self item (([who] of customer) - 1)1 T* P' K4 c( L- i: P! v f# }
[trade-record-all]of self# c7 T# @ ~- j2 q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% y- L5 u4 U0 b3 \; B
/ V4 X- y- n, m- K- G9 g
set [trade-record-one] of customer item (([who] of self) - 1): K1 ?+ n1 Q$ J, H1 @
[trade-record-all]of customer
* q+ v: X& V/ r1 E" ]5 h
" g$ }3 F9 z# |0 qset [trade-record-one-len] of self length [trade-record-one] of self
" X& Q B, w0 x
7 i- D: y1 H4 | v8 T! q# Nset trade-record-current( list (timer) (random money-upper-limit))' P: X3 E! \9 ^% g6 o7 i
@. }3 w* X" @/ L8 z& H( u- Uask self [do-trust]- w+ ~6 r& h) O' u7 k Q$ a) j; f/ S
;;先求i对j的信任度
4 \6 Q6 X6 U6 H5 U7 l' M/ ^2 k8 C8 V- ]% }6 ?3 i Q
if ([trust-ok] of self)
; i* L" H$ x% r0 w5 F9 l;;根据i对j的信任度来决定是否与j进行交易[
' S: o' \/ J5 z/ E! U' Mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" Y5 v O+ I4 U7 S ?
& i$ f# I% X- ^5 F3 |6 X4 w[
* H. M- u$ \# R$ _" X
, ^; p, s6 n) n2 \& vdo-trade+ C7 M/ B3 D. g
2 e6 _7 e& o, @( ?1 |+ ^3 xupdate-credibility-ijl
% V: H( J" I2 T; ^+ n
, N! y1 X l6 c, G9 w: lupdate-credibility-list
+ t* o5 k9 | V& T% a; Y' v9 g) K* ^9 @* H
7 M7 D$ @ x1 \update-global-reputation-list
+ P+ p7 N2 g6 }, B+ B* S4 a3 d% h- T7 P2 s2 g
poll-class: x$ l7 T" X7 ]
0 H; U4 u8 T3 x1 W+ r7 ?, R
get-color
% w1 m4 I6 Z" m8 E; d8 H o* M
! u& }/ _; D6 i$ G8 R8 j& o/ \]]4 N1 T' S; c. J6 s
0 Y% v% ~) }, } ^;;如果所得的信任度满足条件,则进行交易, @. X9 K' O6 F- c; V
# _, H+ o: l1 N) F" P' v1 z; ?[
2 Q/ w- r* W1 p0 P7 [- P4 e1 @1 J6 y0 X7 C
rt random 360! n2 v3 H9 u- t4 e- k2 F1 I1 M9 _( i
3 l# B/ Q$ V, L% g- U" Zfd 1
4 d$ Q; T' x. w6 W: B1 i1 n4 |. k. x
]
^! S) ], b& P+ I% n+ X, M3 U2 V6 |+ ?2 F& R$ G
end7 ], H$ h# k/ C4 O
: s/ R7 p9 _6 K4 N( `$ oto do-trust
+ @# }! `( \2 G" w* @) E+ Hset trust-ok False# Q. z' A2 }; J3 [' x* q( s% C
$ ]" c. ]: |# ?, B7 a8 h! ^# L9 I0 Z# s# U
let max-trade-times 0! z- U7 s% K5 X; r: W0 q; d
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: X0 R }4 d& j. ?5 I, v4 T4 j
let max-trade-money 06 g9 s6 h1 P9 ?# l
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 R# I& P9 \0 d" o& llet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* j2 u! O: t6 l9 V) V9 [. ?; _
1 ^9 G" T8 \! e5 Z# p- c- K) [" E4 u. V
1 t" E7 ?" J# T" d X! ^5 Z( {3 jget-global-proportion6 ~$ [& j" c3 @; `/ z, b
let trust-value
* x. H3 G. u7 k3 @7 z. `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)
9 I6 U2 @0 m" u+ n5 C& Zif(trust-value > trade-trust-value)
9 M/ |" M1 o+ U2 O, ?/ @6 L, v[set trust-ok true]
; j6 x& s5 q0 A, vend
# B: j3 Y; O( U. \ z0 j/ c( R4 `8 l+ P. `% w h
to get-global-proportion
6 D2 O- u/ w o4 Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 p, }6 J" v( a
[set global-proportion 0], c+ X5 ?! w# Q
[let i 0
3 j2 e+ b- a" G* c& J# k; slet sum-money 0
5 T& K% K7 c9 p# p2 e M3 rwhile[ i < people]
( o4 M3 c8 L$ r% M9 i, ?- v[& y: w; g5 t* b6 {' @' l7 ^! B
if( length (item i* v! t( a0 J& g Y% |; ^
[trade-record-all] of customer) > 3 )& h, |1 A8 B [. ]* b6 i
[3 @5 y. W8 B0 H
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# f# r) J3 F+ {5 x4 o& ]]
+ Y. d+ W: g; q; G]
* ^9 s, D" Q5 |9 n& B: y* elet j 0
' C( I4 _+ \9 b0 m0 ilet note 09 E; B1 q1 G4 f1 s( i: H+ A! q
while[ j < people]
0 L( Z7 A3 d0 u- U+ b8 e[+ w+ z F; }/ z: Y3 }
if( length (item i! f2 ~2 a7 W0 c( k. m, s/ r
[trade-record-all] of customer) > 3 )9 Z" o- y, v2 j* j1 [' h
[
' o6 B4 p. c3 d% e+ m3 m! i$ i9 Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 [& }: _; T J( M! y$ T1 v[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% k/ v0 g! M( f3 Z" r# \
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
1 u1 J+ j9 O9 E2 x8 i4 A9 c]: I$ J# W2 M/ }0 _$ @; \
]
2 U1 o2 |* \" D2 D6 Bset global-proportion note
; q _ P3 ]8 V" d]
# b3 _- `* Y3 ]# ?8 E- t3 `end Y6 Y% u( i) ?/ k) W
0 \6 b# q: ~4 `1 pto do-trade
( P* y' T% @: O;;这个过程实际上是给双方作出评价的过程+ Q; ^: D' H3 {+ J6 b1 {! h7 H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 B; p% d: l: ^/ z4 J) x! u5 zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: I F+ ~9 R- a# p7 X: n2 Dset trade-record-current lput(timer) trade-record-current
5 Q( [, b) o* N. ?' _. ?0 R;;评价时间6 i1 b. } b6 t8 [) c/ z
ask myself [
" @0 z+ b& O/ e+ Z3 I% ]' ]update-local-reputation( `! ?: H" a s3 ~
set trade-record-current lput([local-reputation] of myself) trade-record-current2 f G& ^9 m7 m$ n1 X' P
]
+ l9 ~9 Y+ @$ o( p3 zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 z4 y0 n+ Y" M+ j: E7 |
;;将此次交易的记录加入到trade-record-one中& G1 C- K4 E2 x7 w. \, p/ v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ m2 [" D- o" F- T( M! J5 ilet note (item 2 trade-record-current )
# \ W7 k& p" L5 J3 ^set trade-record-current
; J1 a- D+ }5 t7 B6 o, q; P(replace-item 2 trade-record-current (item 3 trade-record-current)): B7 b; Z% L. w" `& {3 ]
set trade-record-current6 ^6 B$ H& Y! e( U/ n# r) e
(replace-item 3 trade-record-current note)& `$ o t. r: N, |
) u+ `4 A2 M2 ~5 r5 C9 T0 x! p7 m: b: D
ask customer [
( v4 }8 V( R( k0 C1 P, U0 Yupdate-local-reputation; J# Z) w/ D2 O! s
set trade-record-current
7 F' G2 x8 w/ l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - m/ G3 G: V+ b: l& u( d! _0 V' f
]
% O1 W" u- {2 D* ]& `2 J: q7 B+ r1 q; t$ {+ K0 B% \
, O. h, g, w( ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer8 \ v: u5 v* t; Y: i1 Q. a1 F
" v. I1 }8 }+ N5 _+ `
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): j- V5 u7 d5 @6 F0 Q
;;将此次交易的记录加入到customer的trade-record-all中' W: E& D4 t; W! A7 b
end* D7 [) n/ \! t) @) t/ O' c( m
: `5 ?, d; @2 U2 o; C3 e. z
to update-local-reputation
; S1 G: W) z3 k0 H) H* `' Yset [trade-record-one-len] of myself length [trade-record-one] of myself
' x3 L/ M% N; l; {) i0 N1 G O
7 O# D+ ^2 ] s* @- b5 f0 I. G6 x! K7 N' O5 G$ b5 T
;;if [trade-record-one-len] of myself > 3 . H6 S' H, l! ]# T. [# k
update-neighbor-total9 F( j: y# N3 `
;;更新邻居节点的数目,在此进行: J. u7 S' @3 t! y- D; Z% A
let i 3- P& e& r; p m/ r
let sum-time 0
- U! \8 b0 E0 ~& ^$ |while[i < [trade-record-one-len] of myself]* K5 Y/ S5 ]+ Q/ ?3 g9 P9 \
[
- S) H4 Q) B; ^3 @% Y8 Eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( H) @# S) M, ]+ tset i2 j; K* x9 Z. N; F$ g
( i + 1)! m/ E0 d4 G* j+ h
]
& B6 z z0 C/ }" t7 X: Qlet j 3
. k) a; I! E/ P. @let sum-money 0 W( x$ p2 h. f* Z7 I& L
while[j < [trade-record-one-len] of myself]
2 M. O9 Z: W; h7 D" S3 c; U' g" Y* [[/ d4 z a, v6 v% Y2 X
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)
, G! r; U% p/ u6 }7 h1 {. |- Pset j8 c$ E! u5 ~$ o1 O
( j + 1)
5 |' p8 i2 i6 ]6 a9 g]
" _; t$ G. h6 z, vlet k 3( B X& L X3 K( P
let power 0: z- j5 l! ~7 s# v# `! C
let local 0! ~: n0 C* ^, F
while [k <[trade-record-one-len] of myself]2 ^+ R- u+ N1 Z. b
[7 B6 v# R5 f8 n; [7 ?, I6 t+ c
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)
& h% r/ P, ^7 x' {, l Z. Yset k (k + 1)' s2 F8 } y- g7 L
]3 K* `, g1 h/ A, `& V# ^
set [local-reputation] of myself (local)5 X' L H$ I! ?- f0 U I }: d, R9 B5 V
end
) C- _6 ~" E6 n* m, K# u! x
$ z' k ]' l+ f' pto update-neighbor-total/ C- s2 n t% b& a! ?- I& `
: |* X2 o6 _8 |5 ^3 n
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 ?/ W/ Y6 K! ]
\! M& u: a9 E' f h
7 x: @6 l. d4 W* C( C$ C. fend
+ E: m1 d" z# t( ^# v
$ h8 E1 ?8 L* d# U8 a5 P4 `) rto update-credibility-ijl + q) q' q) V5 {
; C# o0 x0 D9 T( V3 \6 w Q& e;;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。' S6 j& z, E( n$ H2 v; K
let l 0, _: ^, p; s$ H" y
while[ l < people ]3 g5 `& ?/ R8 ]
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 O/ o! C y. j5 ]+ Y5 T0 Pif (trade-record-one-j-l-len > 3)
; j3 O5 ~. s2 z6 O1 s) {) H3 \' R[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
- u$ f; B3 O* D, ~1 `# T$ S6 F5 blet i 37 F6 L$ t# h2 y- Y
let sum-time 0) B) S# g" x* C* W) H# f
while[i < trade-record-one-len]3 a" V7 D' X. y: }% f: T% C1 S
[
4 P' V7 e0 Y" N% {* H3 Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
. E$ o# y& ]2 x. Tset i6 Z2 D3 ~% [! Y% ~
( i + 1) B3 K" N. l g% A: p7 A# d
]
7 }# m. P0 R7 jlet credibility-i-j-l 0
: B, f# n: ^$ v;;i评价(j对jl的评价)
9 S+ ^& W: s) h y2 H6 ] w6 Alet j 30 @& R+ P5 x( Q1 K3 Q6 H
let k 47 L @$ {: y' m+ n
while[j < trade-record-one-len]
7 H4 Y% n% g2 { @3 T- n[
. d0 v) b2 j/ m* H! _0 Uwhile [((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
/ V( p @; m8 p9 S) j e( @6 n5 pset 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) Q3 d2 v% {+ R) C
set j
5 p* y8 ?, \- H5 R: u6 h( 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 ))+ C+ v* ]! Z( ]: v6 T
+ m# t: v0 q2 z
/ X4 `( U; c8 s# a, jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 }4 ~3 M$ W: ~' w) f;;及时更新i对l的评价质量的评价
! f p7 K& j/ Eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, f+ P$ z( `6 I$ Eset l (l + 1)% F8 \/ K p8 |
]
7 C4 W5 S8 f' Oend! m* u' d+ A1 J) |4 s# D2 \
+ O1 Q) E ?9 E2 X/ F3 J
to update-credibility-list
3 z' b0 j& V& J2 m5 H6 _2 Vlet i 0. i7 ?: |. y# D" u: V7 j5 C0 o
while[i < people]
3 P, Q( P* l4 i$ R' j* a- R. |' R; x[
^" r8 [. r! N( S3 _3 Zlet j 0
: m# \7 A$ F% ^; u. i i4 flet note 0; z7 b4 D; R: \ h# ]: @7 K
let k 03 d0 R0 ^1 _+ m d
;;计作出过评价的邻居节点的数目
. G) n% V2 q' Q( q. R) Ewhile[j < people]
; M" \9 i6 }% b7 v0 g6 c% |[
& ]" f2 u! v5 vif (item j( [credibility] of turtle (i + 1)) != -1)5 g; Q! t0 ]8 k) |- _$ X
;;判断是否给本turtle的评价质量做出过评价的节点- ]# W I9 u* \: S2 f i6 x1 \
[set note (note + item j ([credibility]of turtle (i + 1)))$ x k7 ^, ^. x; U# u, c
;;*(exp (-(people - 2)))/(people - 2))]
$ w* `9 |& p, G4 R( K, T) Cset k (k + 1)+ n+ I2 y1 b3 U+ z1 u7 ~0 e
]
& E) x, n5 o+ b4 H g# b0 G5 r9 kset j (j + 1)7 X3 \- U* w, O/ ^
]; Z% s& ~* ?+ o! n, w2 s% u& y0 B
set note (note *(exp (- (1 / k)))/ k)
) D: Q/ ?% U. j5 q/ T iset credibility-list (replace-item i credibility-list note)
0 O: W& k+ e6 E0 g2 m/ d4 |set i (i + 1)
: ~: X+ L. v; g* e# i1 f3 q* W8 q* ^]. ]: t' f/ _1 p. ?7 _8 C
end! x- R4 C) G& y( c4 m; F% x# s
- j/ w; `3 e4 z3 q: Q* }to update-global-reputation-list- J! a, u! k/ r3 ^3 f
let j 04 \0 G* L5 _( B) w6 C0 }" F3 s6 \
while[j < people] k$ E1 ?' `1 _, J5 T! w
[
1 {4 y* k @/ C; y% _( ?8 }let new 0
9 `- n) K3 _, n5 h( F+ m* A;;暂存新的一个全局声誉) j& l5 @( v2 N" n. l
let i 0
1 ^$ k' `8 ~0 B/ L/ M9 N$ }6 Z6 Jlet sum-money 0! y" T, i8 [- _5 ~% ^! o
let credibility-money 0+ e9 i, I4 H H1 I2 G; P+ a; N
while [i < people]
3 a( A$ a6 x, K v/ V! j% r[& i4 X6 i ~1 {7 Q3 v
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ [) b1 T5 m$ z" L# lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) D( q: \9 \7 V3 y }
set i (i + 1)$ c+ U& `9 h$ o4 y4 ^ o
]7 G" r# ^+ U L( @# f
let k 0
" ^. ?5 \! x v1 z2 {let new1 0
3 w2 x* {$ k' [6 Vwhile [k < people]
5 d, o$ w, F* E& @8 p& L* u[+ [# j/ n& D8 V
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)
" ~* v3 b7 h; F4 g! eset k (k + 1)
( A4 S! W0 z; A, []
' |5 p* G0 e4 y8 b6 F# M3 _set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , L: z7 e# e" D. |
set global-reputation-list (replace-item j global-reputation-list new)% d9 r6 M6 i) m* C$ w6 w2 E6 f
set j (j + 1)/ p8 I. r- ?. `$ o
]5 T8 O6 h4 Y7 Y2 U; B5 E
end
# t# i4 V, J, B* Y3 v- m& J
. F# p' E" O( C
. U( e1 D. Q1 a# x: g6 M& p5 ~& u6 [2 X7 [+ o+ x
to get-color
" U C4 w. L) }1 q; T" M" K
6 y% c2 |0 G* Q- L& _1 F) [set color blue
, i* [5 U9 p/ N) A, _3 H7 Q t( {end e' L' S5 r& i/ M0 R( d
& Q& W8 a5 q( U" i6 M
to poll-class
( z; f: N" ?7 i8 Oend; h5 E+ ?5 j1 Z* Q' j
% d' K) p2 i5 @5 x5 s; J' X! Z2 }, T& h
to setup-plot1
, i9 z) [. F" K- \1 O
7 C6 g6 h; M4 b; u: Pset-current-plot "Trends-of-Local-reputation"' H: p5 K8 m2 Z% n; b
9 j0 U7 Z4 }# D1 H; B
set-plot-x-range 0 xmax; ^0 T/ c% L5 D: t9 \# |- i+ o
- } J) {2 q$ d; z( w xset-plot-y-range 0.0 ymax
# g$ G1 U5 Q" v; J. I: H2 jend
! _( U/ O9 _: h" {5 E/ I3 k, N6 [8 L- ^' c
to setup-plot2
. x& y/ i8 U' F W+ s% S1 J
$ r+ R1 N& u3 N; A( ]9 g3 rset-current-plot "Trends-of-global-reputation"
0 g7 K# m* P! [8 i$ l* U& o Y2 N5 j! C
set-plot-x-range 0 xmax
: n. b5 }/ N* Q1 m1 r% B p: i( J2 v9 W% P" T
set-plot-y-range 0.0 ymax: q+ Z( X' V' l7 U/ f' |
end
, |9 }/ t* O: P6 B! w- z S5 G0 E6 Q, V4 J+ n. g: e/ N x. S
to setup-plot3
" |# M7 b6 B6 A) N9 m$ k# z1 Y! _
7 i# ?8 z0 ~' n% _- M9 [& j+ Zset-current-plot "Trends-of-credibility"
5 f& Q W" d6 o! U7 H. `
- y" r$ b& |: {. i% L! E4 F7 O. V Nset-plot-x-range 0 xmax
0 @6 A* H3 Q- s8 j
0 t5 D3 {, V& bset-plot-y-range 0.0 ymax
$ S$ D6 b" P1 z/ E% Qend: c' Y& {& u$ j# o4 Y* M) |' A% T
- ?5 u- Q9 q0 q' T; B; Dto do-plots S* @! R% W( n( L3 n/ `0 s
set-current-plot "Trends-of-Local-reputation"( u2 ]7 l3 h+ O/ L5 ?+ I
set-current-plot-pen "Honest service"0 O% c" V. z* m
end# W! U( R7 i- y5 w) j6 x2 S
$ K. r; F1 C- x) p" X
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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