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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 f; a: }8 X* L8 _ a' v
globals[+ d0 k Q V* H
xmax
, j" E5 M' D6 C3 X2 qymax
8 R5 C. L' ?& B/ z, F8 iglobal-reputation-list2 [. @: E9 R. z- N& q
9 E, R2 M4 S# U; S7 f# z
;;每一个turtle的全局声誉都存在此LIST中
# l) {8 r5 i. x' D! t: n% T# Wcredibility-list
4 z- _9 [9 {" o1 C' H2 h;;每一个turtle的评价可信度; m1 b+ J5 E% D @
honest-service3 Z7 ?; z% O/ V
unhonest-service2 H, o; X. Y1 {
oscillation3 e9 F9 p: }5 J) ^: C
rand-dynamic; ~* X* K' q8 N3 Y$ \2 l
]2 V8 x. t) E8 s4 k& P$ q
3 f+ C& W3 r; {
turtles-own[/ n4 C1 }3 `: z# W7 e5 a7 Q `3 M0 f
trade-record-all
* {' Z1 @. g8 a;;a list of lists,由trade-record-one组成* c6 l& P' A, d, q8 F( A
trade-record-one' \( A- `. E1 u
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录5 E$ _# d6 ^& B0 @" H* x
$ x- p3 n* @" u |% s. V4 T5 l;;[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]]
- s, A3 i" d" r/ {2 \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] Y1 {- G1 ?9 P( U
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
: _2 H, W* `" q2 l4 Y$ qneighbor-total
5 J; g$ z- B: [7 G& p8 ~6 s;;记录该turtle的邻居节点的数目& J9 o# v8 A6 q. U* ~$ m
trade-time+ j- e" p+ ]! d, j
;;当前发生交易的turtle的交易时间1 k- k) i: o" Y" L' v0 ^
appraise-give
" E0 z. W1 C% o2 R a;;当前发生交易时给出的评价) b' X3 ?( C2 G
appraise-receive: h, W0 y5 ?: g7 }# O
;;当前发生交易时收到的评价
( p7 L. S3 c) L0 W1 J" F, A9 |; iappraise-time
1 w* n3 Y3 W5 s5 w, R$ I! |3 H;;当前发生交易时的评价时间
% f8 ?! E1 W" J# [local-reputation-now;;此次交易后相对于对方turtle的局部声誉! q$ f3 v1 N _
trade-times-total# Q2 { {' q9 u4 q, Y* ?1 G6 U( g
;;与当前turtle的交易总次数 v: _4 l |" d" O Z" @: P: s
trade-money-total
9 B3 z' c6 W3 q3 };;与当前turtle的交易总金额: ~0 {) N" Z" G: s
local-reputation
( E5 f+ Y& o. q9 T# a5 c1 Xglobal-reputation
4 S% {5 S+ f7 |) b+ ncredibility
% t o0 ~ r" j0 U7 n5 V$ X;;评价可信度,每次交易后都需要更新
5 N; p% C3 D( c* H7 P- F9 ~credibility-all, ?3 j' q2 J, S
;;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) a3 L% g9 i( c' {+ o* ?
/ H- \! j7 w# Y6 Z2 Q' S;;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* I* x! Ucredibility-one1 W- ^7 I" v5 }* ?2 `$ E
;;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+ K$ A3 |, }* _- O: _) ~8 Y
global-proportion5 f" o) [5 A, J/ @2 |# C
customer
" K! C F% ? Q% n, {customer-no
+ O* B, e1 T1 Jtrust-ok
% \# @1 F \7 Mtrade-record-one-len;;trade-record-one的长度
, @/ _7 W) }; C( @4 K]
9 I+ b2 |- H7 D$ m% d: X# e3 t+ p9 e5 Z+ U1 V
;;setup procedure
4 _' \$ A7 o. h. x) u* w3 T9 y3 P9 w6 L# ^, W" p
to setup
1 h) m+ _5 E, ?& m6 K
/ C# n8 N$ ?. `( @ca+ O" Q1 e2 L9 o2 ~
8 G$ D4 T1 _' r% L8 \
initialize-settings% t1 {, n2 G7 ~* Y0 V2 c t
5 _2 p4 O4 g; R. Z, L2 \" x, D: vcrt people [setup-turtles]
1 H( q6 | x% l- Y: d# [
( W0 S8 U+ X6 l( r) V8 Ereset-timer) [) z( e! ~2 n, _, _' x: _$ A: ^" u
8 V! N* U/ O' v2 Mpoll-class
% [" g$ P% O4 }; [+ {* y, d* v4 J7 n) b6 E; C: B
setup-plots
# g' {4 f Z# o. w$ H1 B7 y: N
5 v& y5 [. U/ `. M* N* e: f; kdo-plots4 |0 y3 g" q3 z8 d. |* m0 d; T/ B7 l
end8 b$ Y; k. j: m# k
1 I. c! \- N, K& [! X. V! gto initialize-settings8 h- L, _! n$ t3 r2 ^! Y) D1 r
. B% I5 h; q2 ]+ K8 t: f% u
set global-reputation-list []+ m& Q, \6 d& j& N; l0 r, U
# Q3 c, X8 _. j4 x' N: c2 F
set credibility-list n-values people [0.5]8 F! y$ ]% d6 n
" i" J# Y. ]" N/ [0 T2 l
set honest-service 0
6 H5 c n; v: U9 H, a
4 y( C& x# l6 A/ Wset unhonest-service 0
1 U! n( E' d. I( b0 D+ ^1 l5 P
, O# g" j$ |% p8 W0 I8 ~0 Lset oscillation 0
9 {3 T, }% P6 H' }3 i5 J0 f* I
_. U+ ~! j( R( j, Rset rand-dynamic 0
, v- h% o0 F0 S& F5 Hend
/ B$ M, H) H7 \, s
6 E1 z6 \& `- ?% o# sto setup-turtles 8 {+ m( ^' t' r T2 o7 H/ n1 t4 `
set shape "person"2 X/ C( ]2 x5 |- t
setxy random-xcor random-ycor
4 U( Q) P5 T5 b5 B8 aset trade-record-one []
$ ]8 y+ Q( G: S" K* m$ a1 q# M; V" s- w W1 F9 n
set trade-record-all n-values people [(list (? + 1) 0 0)]
: d8 M* R4 K- H( Y! B1 `$ l! u8 d
' n c8 s3 z7 u" ]: l7 ^ U/ Lset trade-record-current []# r3 Q9 Z. P2 p& {! E
set credibility-receive []6 Y& C, {7 y+ `& W) m& V
set local-reputation 0.5. E! s$ @; Q$ u; h; _9 X/ H4 P
set neighbor-total 0
# x9 ]' D* {: Sset trade-times-total 0
8 D. j6 y* @! mset trade-money-total 0
3 w* p% r! G0 x$ Cset customer nobody
" r" K) T/ u& [! hset credibility-all n-values people [creat-credibility]
( e5 w- ~; l7 [ sset credibility n-values people [-1]- t: Y- D! `6 @$ m" a( T
get-color
4 W' k% p* O9 ?. y, f( {7 `% x8 J/ W1 @: i& F- y; Q7 K6 y. ?
end& K6 a& d. z6 [
6 L9 }# S, D: O# k$ W9 }to-report creat-credibility
5 ^1 C7 d; i0 u4 W. A1 K* Creport n-values people [0.5]
- H9 Q8 G5 d, aend
' A/ K/ m& {6 m8 c8 t1 n
+ s7 s% ^0 o! a9 O0 s) dto setup-plots% i% c6 [% R* ` V) X4 B
; u3 c3 g [8 h0 Cset xmax 30: T' M5 `2 ^7 Q- X( C/ Z
# g8 h3 }- ?5 T$ [# B
set ymax 1.0* B6 M" r! f. P2 \6 _; c
9 p0 y/ D- A Y$ T. }1 D4 F& oclear-all-plots
# y) u9 h; k- d4 }9 s1 T8 v, K7 F: o& L1 c9 U6 K- b
setup-plot14 ]" O: }# s+ d$ l2 f
. E( ^9 C8 c" Z I" \; x- A7 C
setup-plot2( S4 G+ l/ j' r
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setup-plot3, d- X7 w1 i" ]6 B
end+ T# {! f8 ?4 M' Z
; E' \5 ^4 g% ~;;run time procedures1 w' ?: d8 H$ }
) r# {# ?; @7 R$ [
to go
7 i6 R: G9 I J. n% r$ R( e6 [$ _/ d
ask turtles [do-business]
$ j2 m5 `% W- `6 rend
" N; k& _2 H) G+ i. o# e+ N' d+ i
, V5 C. j+ F( J( K& i( j6 K1 } ^$ Yto do-business 8 p+ q; c) H/ Q8 R
4 X Y) U J& R
4 Y q! @+ Q: l/ Q. K n \
rt random 360+ b' ^/ j+ |, c
& ^& ] J& v) P7 y7 Kfd 1
L# p" x% U9 T- w+ c- o v: k. g# I; c$ Q- {
ifelse(other turtles-here != nobody)[
+ S" P: i% y- u L, G) K/ b7 C/ q( O, P ?. a. \
set customer one-of other turtles-here
) k$ w( O4 S/ H% }4 t1 b* x* W/ k8 ^& S
;; set [customer] of customer myself
+ ]/ T+ _0 m* ~; ?! S& l$ n/ @% _- a
set [trade-record-one] of self item (([who] of customer) - 1)
% r* ^; J% F, w R1 f[trade-record-all]of self, H- k5 L, e9 f8 ^
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 i: S3 u/ _! G3 F# ^! r6 y- m3 @, j0 C5 }. ?
set [trade-record-one] of customer item (([who] of self) - 1)3 ] Y8 a' K, V0 ^# G1 U% P$ Q
[trade-record-all]of customer* E$ t$ d& K0 n1 c1 Y
! o' N. |3 U) j( i" r/ v* J2 h, }set [trade-record-one-len] of self length [trade-record-one] of self
0 `8 I5 d s6 @0 q7 C9 x1 M* \9 k4 P- W
set trade-record-current( list (timer) (random money-upper-limit)) X; E$ N' t; J3 x/ }5 X2 O
; x* y+ a2 z# e/ m. V( Q
ask self [do-trust] A7 S) F/ d1 e$ [+ R$ j
;;先求i对j的信任度
n& h# H8 _* g6 ?' z5 K5 k/ y5 x) v1 @
if ([trust-ok] of self)
V6 F" r. a; R: X;;根据i对j的信任度来决定是否与j进行交易[
# ]0 q: v% Q3 U$ F" ? K* Uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
2 L, F( x' ] F1 y7 l( H2 x7 ^3 ?9 l
[$ S* W% A7 v! O
; `: g: J/ o: [- ]9 Qdo-trade' L* d) V0 O) g" I U* K
* O, _* e' O& f9 X9 y
update-credibility-ijl
# S& o$ c9 E# G5 |! H7 X5 l/ s* m" J! D! C; h, h! V9 v
update-credibility-list
1 F5 G; @. R* e) J3 @; I( |
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% Z1 Y- N& b; V4 ?update-global-reputation-list9 Z9 B/ m3 p2 N8 ^+ u! l
! ?5 v8 n E2 z3 p" _
poll-class; C+ \2 J% |; w5 L+ z1 B8 g3 j
0 o0 l7 p, ~6 a0 ~# ?9 k- W' qget-color+ X+ E3 r( J- [1 s
0 K* I) e6 s: F% N, x" ]* c. \. ?) j]]
- r1 W$ ^# ?* v d
: M& Y$ c9 A- @1 P' ^;;如果所得的信任度满足条件,则进行交易
9 S3 j4 l$ j/ ]4 t8 N; y1 I# K
9 q0 W+ X# ^; [. _& P2 m! h9 X[: J( a* p( h5 I' e6 t! N
6 _4 b- w5 B' Z6 Y' Srt random 360$ F9 Y; G6 E4 G: o" B& \* h
' p/ x' d( O# Z0 Z# u9 y. W- a, `
fd 1% H4 k2 Q# H9 m: |, Z0 ]' r
4 M: Q* m+ t; v* Q: `8 j]
- {+ f$ L. ~. x/ Y d
4 b* [2 ]% X' m- k% S Q9 Jend
' ]' m2 L K1 ^, l$ s1 F" J' Z; d" w% M/ ` ]$ n( l( E
to do-trust , l0 l' z% L& x* V0 z. l3 c" \
set trust-ok False; J8 p; T& H3 z0 o6 p
9 ?! _9 x- a" J( [ S
; d t L5 ~' W7 q' i4 F2 @% V! zlet max-trade-times 07 E: U1 w0 T1 e$ [, P+ \
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' a @/ `# ?5 I" i
let max-trade-money 02 P. D" Y1 t- @7 g. r6 ]' n! L
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ Q& R" M% Y1 C$ g' S: U4 Y4 h4 z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' K# w( f, O2 C
' i' L5 T1 ?6 ^. P% J- S' z2 _" z% k! p* \
get-global-proportion
5 v: h+ j3 k' d( _; R) ^' a% Vlet trust-value
0 B# t! f" ]: J. `* t$ Zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
. P2 @* v; L1 A2 Y4 |if(trust-value > trade-trust-value)% D0 `0 A& L9 U4 f: S$ o* q
[set trust-ok true]1 s) N& @' M8 D7 L
end
B5 F. o6 n+ N# t- M1 z ]5 ~" _ b D$ t% u& R5 P7 Z# x
to get-global-proportion
+ f8 y% S& ?" e6 Rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). e! h" l+ G6 ^( H+ F! v: a
[set global-proportion 0]
) e- x% o1 }. F& f1 b5 `" P( W[let i 0
' T5 q& q1 j6 [# U9 |" l1 @let sum-money 0
" z$ h' a7 \- W1 c9 ], |. n F0 `while[ i < people]& |3 r: w$ |4 z( V
[3 p5 u- F2 y6 e& G
if( length (item i4 A7 Y+ ~' c; |$ ~1 t8 c
[trade-record-all] of customer) > 3 )
/ r/ x/ ]1 ^. K- c" C6 R& Q2 h[5 D( t* K" m' ] Y. V% F. ~
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 _: T. s+ D6 ^5 C4 A]
: [ U% w, k4 P' s$ W]' k! ^# `& q2 g: j; _- `$ t
let j 02 I- O/ v1 @- J2 _" O9 r; H* I, a
let note 0
7 P% R# B% f; q" I* hwhile[ j < people]) \; b7 g$ `4 u1 y5 p6 ]( r' t
[! b+ o# R/ ?# q4 {, M( E) n
if( length (item i
0 \0 }* v( M6 a6 w& m[trade-record-all] of customer) > 3 )
9 Q) L9 k0 j% |/ y1 A& E+ P[
* N: l3 S- q: |; k: J y$ s9 M. l0 qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): l4 B) q! q/ K' l, D" \
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ N3 G' q, }9 V4 d" \1 K3 ^[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- X/ g4 O# g; ^$ G- _5 R4 e]2 }, w+ j2 r8 x) \. o: T9 S
]
. F& g. x# p# b; k1 G/ p4 qset global-proportion note4 {" W# x. K1 } d! O/ `# M
]6 F* h- @8 l( H: H
end# M" v' x' U, o% I2 ?
% |) Q2 g4 u/ X% e: t( K' z( o$ p
to do-trade" E& `! o# ]3 K( u# K9 y
;;这个过程实际上是给双方作出评价的过程
9 G3 y* O' G' Z1 F& V; l. ^: _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) `2 E/ O" H; i- E+ jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. e; _. j# d* w+ _set trade-record-current lput(timer) trade-record-current9 I/ H" G# z0 R( V$ ?% N. u9 L
;;评价时间7 V s3 k% L* _% _. x: _. _- j1 e
ask myself [
0 t" a5 f8 ?2 x: O% K% @/ Q2 s. ?update-local-reputation
' Q+ n6 T( @2 h- gset trade-record-current lput([local-reputation] of myself) trade-record-current: P9 [* I0 [( z: k$ P, w
]7 }& Q( O" S$ l. [
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' x2 M2 a, J0 F- z; j- L
;;将此次交易的记录加入到trade-record-one中# D9 E* e0 \) Y2 q% N
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 I& d2 v1 _8 R3 d# e5 D
let note (item 2 trade-record-current )# q/ k& J6 q c' p$ R) N
set trade-record-current
R3 \& @0 S$ S(replace-item 2 trade-record-current (item 3 trade-record-current))
/ g$ c, r# p: ~8 T0 Hset trade-record-current
- D# Y$ U8 j- A- W(replace-item 3 trade-record-current note)" j+ X' Q; a1 g# J) D
2 l8 ?- m7 D, K# e
! j+ e7 Y. b5 h0 iask customer [
) e! P$ L+ ^* Q2 k" X7 oupdate-local-reputation5 c- R W; v' n9 T% Z7 j" W9 X1 _
set trade-record-current Y# b) J" ?' O
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ) L2 ?7 }( x H
]8 v, f. B* f4 o4 |$ h/ V
$ _" n1 z2 n! m' \; T0 f e( O# ^) T! i5 _/ \+ y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 N' Q/ H8 R3 h% Z, z& f
- B4 n/ G, j9 r6 H: A0 Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% B! R1 I& R: _, O
;;将此次交易的记录加入到customer的trade-record-all中
) C6 f! Z7 |6 F3 dend
3 @/ X/ S9 ^* [3 o* z6 S2 q! E8 k8 k# m5 K
to update-local-reputation
4 \) ?! F, |. [: z9 Eset [trade-record-one-len] of myself length [trade-record-one] of myself
) ~5 Z, z. c6 x( O" I0 q, w. ^4 f( q1 j
$ m) Z4 V. K+ n
;;if [trade-record-one-len] of myself > 3
3 B& @1 D4 s1 I$ m/ f, K/ X' Qupdate-neighbor-total
+ e$ w4 O3 K2 f8 M+ d;;更新邻居节点的数目,在此进行
+ D, A3 z% K5 ~- n* t, S; z" Llet i 3. y3 f4 b8 w: c$ q0 @( E6 a! y' r
let sum-time 0
. n) B* `* S P6 P" M4 Dwhile[i < [trade-record-one-len] of myself]
8 c4 p" _$ J. T, \8 e* C: u[+ Q& \% o0 p6 r4 x3 |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 A) T2 D2 R3 ?6 q; U; ~% R# Q' a
set i
# y7 e% B/ ]: @( M# N( i + 1)
/ q6 ^9 Y& R- r! }( r]9 A8 P4 M. [' _9 V' o, L
let j 3! M! t% D! Q; h% e/ j0 M7 z6 ]9 o
let sum-money 0
3 ~) f: m! p# c |while[j < [trade-record-one-len] of myself]
! J z3 f- o! @$ j, k5 b[3 j4 E. b: B l
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)& B1 U. Q* U% h
set j) d# \3 O$ {( }" p1 Z/ P
( j + 1)$ T% D* v! e- y+ d X0 S1 ^
]( [6 k9 z6 h* g4 C
let k 3! U9 N# N9 Q2 l* M2 |% g
let power 0# U: z4 R0 K+ i+ H4 i4 s
let local 0
D1 B9 w& n) ~7 y' `while [k <[trade-record-one-len] of myself]- H& P, u/ r1 Y2 |8 v
[
2 {7 r$ i; q# |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) . D6 X. F W ]: a. ]
set k (k + 1)* Q$ K1 \' ?' r
]$ i! U9 M4 [4 k2 ~8 @
set [local-reputation] of myself (local), B% m( W: j. ?. q
end
& R% i+ z/ x' J/ W/ [+ A% I7 r$ t% \+ E$ v, ?4 r" B1 S
to update-neighbor-total* M o2 Q4 u5 a0 l9 L
! A/ ]5 J* t% L4 m i2 Q/ Bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# q; |# M4 P8 ~- `( u; R# S
$ C& O1 K4 B. M2 N8 ], e- t/ C5 j7 g9 d
end
. Z7 ]- p9 a4 ~. ~
- K' A' V7 `! R2 gto update-credibility-ijl ; Y7 b9 z _7 P) ^
7 B }+ N& Q! x( S u
;;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。
8 T: p3 K2 ]- c9 E. J/ Qlet l 0
2 V5 f- u4 l: n8 Q8 `7 nwhile[ l < people ]
+ i4 A4 I& U- K; s- _7 p1 q;;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$ E% L0 a5 w. ~2 L
[
, x2 A- ?2 d) p% y: Tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)' R* J |; n8 L- d$ N$ L8 _
if (trade-record-one-j-l-len > 3) t% R( X1 P- w) |4 o# A( e
[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( o0 h/ Z5 c- \' {; i9 Z$ v
let i 33 I9 ^6 P0 E# [; b5 ?/ c4 G
let sum-time 0
5 x. b: ^% k0 g6 twhile[i < trade-record-one-len]% V$ b$ K3 U% M; n" l
[
+ a/ R0 H" }. G( \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# O' H0 v% }6 U, R2 E" {
set i& r" P8 D( C( i3 i0 @0 k& Q
( i + 1)$ d+ _8 M8 d' }6 ^1 F, Q, |1 B+ N) m
]
6 O9 z3 f' D3 ^, u1 C8 ~2 Flet credibility-i-j-l 0- A T/ W, w2 |2 q3 r
;;i评价(j对jl的评价)
( R$ |; d6 K# \7 S5 p3 K5 f% y7 _let j 3: D& R. t9 O4 a% m- `* _6 @
let k 4% L5 u% M2 }. K9 O4 A
while[j < trade-record-one-len]; M& [' H w# Z! ]2 t9 G
[7 O9 x) _+ k0 M L0 }
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
' N8 p0 p; F& T7 h6 o+ P' hset 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)9 y7 t# \9 r/ T7 `
set j
3 _& O; z7 s9 M' `8 M1 e( j + 1). ^/ d3 f! N2 i/ l( \: `* F
]/ u6 B% U$ V# Y' T6 w- Z
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 ))
3 p& }& R8 Y0 c& o1 O1 S5 O0 H7 _( o& S) e& S" z5 R! T! R
* k. ?1 O- `# o1 e+ Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) X" A3 k5 l* g0 n) a4 v" j5 @;;及时更新i对l的评价质量的评价0 ]4 ]5 J* }# a
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! |( o3 u" b" F, H
set l (l + 1)8 r& K$ u; i3 K/ M% Z
]
0 T* s# j" S) }0 b; \end- l8 S Y2 s9 A) E
# v- u- L! V4 p+ N8 M( M) e+ Eto update-credibility-list4 U1 s. o2 U& \' S8 L
let i 01 H$ U4 Z. m& }2 t# k( g$ p( h
while[i < people]) [6 L( G% B- W: |
[6 ^ F( s+ z& S2 ]; j9 ?' p
let j 0; V. }& w5 _7 ]0 ^1 K7 z
let note 0
! E& y: i4 ^2 xlet k 0
; ^( @ R7 A6 L* M2 e+ C% f;;计作出过评价的邻居节点的数目, Q( C* k$ S* o7 X* c; F1 D' g
while[j < people]
! {6 d" B. |4 A, S( K0 k' |9 ]5 P[
) z% ^- T8 n. q+ Bif (item j( [credibility] of turtle (i + 1)) != -1); M9 a" b& p4 \. G% r. q* d
;;判断是否给本turtle的评价质量做出过评价的节点
6 D* _' J! G6 _$ M/ O' A1 q[set note (note + item j ([credibility]of turtle (i + 1)))
* Q: a P0 e" n g# F- \! T; ~ w;;*(exp (-(people - 2)))/(people - 2))]' b e- R8 w' g% R6 E0 g0 Z
set k (k + 1)+ I1 I5 u# X$ G% q0 ]
]
" c) F2 h0 k7 dset j (j + 1)
5 g1 L: _6 w8 b7 \]
, r; \. W5 P5 M: C& ~8 g9 @ n& bset note (note *(exp (- (1 / k)))/ k)1 D! x7 y$ j4 ?% P; U7 }
set credibility-list (replace-item i credibility-list note)
, b% W! b; Z; N& J1 i Zset i (i + 1)3 z7 z5 [$ I1 N6 s: p# c
]
/ `1 I+ {& A- E7 N7 yend: _; n3 J# u' l4 E5 H0 o: W W
6 G" ^7 Q! D$ S" F& _$ Lto update-global-reputation-list# i) p1 ]# u" v; c5 E
let j 01 v3 ]* R `( [5 J2 O& p9 F
while[j < people]4 i, I4 X: e) W' Q$ e/ ?
[
' B. Y& Q) ~, l) H( h7 Olet new 0
; o! I! ]" ]2 [5 x( @;;暂存新的一个全局声誉
% X/ S" a9 z( Q6 U& b" J0 H$ alet i 0. e2 I* R; P" M; c6 a" x9 n
let sum-money 06 k& d1 ?: \2 ^5 T5 |2 y
let credibility-money 0# ^. x2 L: {. H9 c2 `+ k, y
while [i < people]8 n) r3 N' U( N6 ^0 C* a
[3 I8 d) @: H' z% Q+ o; R5 S# G
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 v ]$ `8 h7 }' K
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- B6 R/ j0 x" ^6 B
set i (i + 1): X4 @# E. G. |5 i) [: }; O6 B
]
: f4 `0 u0 V: B! \$ ylet k 0
, e9 o0 @+ L3 p% vlet new1 0
2 E% T* b+ |9 u b# S2 w! f1 U# @while [k < people]: i( d' Z8 x4 p
[; A6 v) Q* e7 s+ R: `! g
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)& V$ y7 e4 ?$ J
set k (k + 1)' m ]% F. \& K$ r8 ~
]
: \" e% Z( X# o- E. \% k5 ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% K0 `, w$ I1 X3 E r! G- W$ n2 _set global-reputation-list (replace-item j global-reputation-list new)
3 A2 C5 E" s' y$ @' u" b* aset j (j + 1)% [3 l2 G) b& g B
]
; o4 @- _& K$ g3 P0 t) v4 D5 ^' }end8 l' E& ~4 X3 ^
3 z2 H* a$ ~0 q7 {$ G' z5 T4 B
+ R; p* G2 Y* r8 h# g4 w& Z- E# H4 }! w7 P1 C+ S
to get-color1 e: F7 F; k2 P4 R3 P
" F% V( z: u% A' Z! l8 e- ^
set color blue
% S/ [, g; D' w8 C7 C9 U( Q2 oend
% C$ j1 F% b1 A' U8 }
. i; U* s/ t2 f8 t cto poll-class
% n$ Q I. f; Dend$ l( J0 L9 N% C8 G
/ D4 F8 G1 ]4 |
to setup-plot1: F/ Z! ~/ E2 n$ H- n* h
: s& s- e [0 {7 `set-current-plot "Trends-of-Local-reputation", F7 P7 l( J p& U
4 B( H" g a: n! U* T' J$ m
set-plot-x-range 0 xmax+ M" `4 b" F4 U; A& e& O
- J& f" D3 R3 e B
set-plot-y-range 0.0 ymax
. y7 g% J s5 v( c# Oend0 e5 v6 u9 S9 Z1 }' a( z
' W! S/ ?4 {! s; qto setup-plot26 w. Y! N0 `0 }( k$ G7 a2 x' S5 l
* G; e, I% O: j1 S! X& r
set-current-plot "Trends-of-global-reputation"
- X8 j- \6 J @+ B( N9 ]3 J' x$ f; f5 K0 W: U, ^: ^* e
set-plot-x-range 0 xmax6 t \* ?+ W: |* @
0 J. R2 b: h/ |2 v. b6 c9 o
set-plot-y-range 0.0 ymax
. ]3 j* c) S, C4 j5 d. C- vend# F% N9 M8 q7 ^( h/ n$ U3 h
/ l: K: }! B& B! ^to setup-plot3
" r& L0 G c/ f/ x) A( y: W5 u7 m2 H5 E4 @9 \; e
set-current-plot "Trends-of-credibility"+ n. c% C' \; `- {0 G4 v0 \% w
# ~# @5 b& ^" I2 c P$ H1 l8 x
set-plot-x-range 0 xmax
) d9 D' `+ c7 M Y m- s) @! _1 Z; x" b) e
set-plot-y-range 0.0 ymax! g* Z8 ]. V3 ?
end @8 K/ D/ x/ y( j3 I
, |% v/ k# Z @' N0 D1 ]to do-plots
1 `4 |% ?# X0 T: t8 ?set-current-plot "Trends-of-Local-reputation"
5 m9 A' T( ^. [) [set-current-plot-pen "Honest service", Q1 V, L' _( o' |$ i; g
end) A) Z* E9 `, x& V
; _: {8 V& S5 J8 O
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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