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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
) p [* p2 D. r. Y8 Pglobals[" l' C: k0 h* ]3 H
xmax2 Z/ C' i1 A2 y# ?- W8 f2 q5 K
ymax! ?8 z# R& E: F. Y0 @0 A. u. {
global-reputation-list
- w4 E- S! [/ T" d' E- m$ D( ]6 g; W' ]( e# D
;;每一个turtle的全局声誉都存在此LIST中
, t: y ?) E# acredibility-list
2 t6 _( j ?7 J$ a;;每一个turtle的评价可信度
% Q( s% ^ |& Q" d) K6 _- B! m: Dhonest-service
% `' {+ Y e0 s4 R# V- d/ Hunhonest-service0 m) C c; f! Y3 ?1 p& l
oscillation
' [. K5 |( Z! L( v3 arand-dynamic
4 e0 N% a0 v- Y1 i$ O& g] B! K( S; d) h# A; t
+ ^' E) P) z6 o/ h+ tturtles-own[
# q; y$ A# z9 wtrade-record-all9 \! _7 s1 U P! z* i5 d) A5 Q: b% o$ X
;;a list of lists,由trade-record-one组成+ L4 A+ }, X1 @0 Y6 ]
trade-record-one
/ Q6 O4 ~4 L* d4 Q/ T0 u& I;;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 r- v! E0 D! a
7 {5 l4 w& }; X. v# m5 O M s$ |2 f- ?
;;[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]]/ U) R! \8 H% ^ j. J$ g2 q
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]
, L/ U, M/ v P' k' `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
+ U: P9 u) O* C; N1 Sneighbor-total
- `" l3 P; u7 p6 a* M;;记录该turtle的邻居节点的数目2 a- y; Q, p8 [4 O& I7 R
trade-time
% \1 Q3 A3 o6 z1 u9 d;;当前发生交易的turtle的交易时间
* O9 P8 ]" d: s) {$ yappraise-give7 W& q4 ]! o& c6 e
;;当前发生交易时给出的评价
, `3 U2 W4 r+ e5 |% E$ u0 A+ jappraise-receive
+ v% n7 x9 ~2 g;;当前发生交易时收到的评价
7 i/ ?4 g+ N; p% u& i* Kappraise-time
: m8 Z) }0 {8 G1 F( c; D! m;;当前发生交易时的评价时间1 N% y) |1 k1 }+ [ e- {8 p, K4 }1 `
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! O4 j3 q" I6 M f' V# r5 W8 \& i
trade-times-total
+ l8 K: Z' `; E% _;;与当前turtle的交易总次数
5 ~4 m/ O7 L4 N5 [+ _" Xtrade-money-total. O9 d( d& J9 n* e" ~! E0 j
;;与当前turtle的交易总金额
{; H. f( X2 A7 clocal-reputation! i* y8 E5 H* }8 S4 l
global-reputation
5 n$ s, U" E* O4 w( f. Z9 [" Kcredibility
; j- }/ t; S) E7 y" w;;评价可信度,每次交易后都需要更新$ Q2 |: s8 B! p% b
credibility-all5 n0 `+ @7 D; o5 g/ X- F
;;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: q/ b9 t, I5 s l. Q+ v
+ j7 H% J$ M: R( h- N" 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
+ R& R0 }+ I% k/ f. `: |# r" Mcredibility-one/ d8 n; }- h0 Y9 ?& t3 g3 s! o
;;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1 ^+ O2 Z) O6 W( u0 d
global-proportion
& x. w) p( T: r+ ?% z$ V4 @8 Wcustomer% i0 }. W, b0 Q* J" W( x
customer-no( \; [2 H' n4 Y8 j6 [+ T
trust-ok
( b+ {. c+ y5 [! T f' ytrade-record-one-len;;trade-record-one的长度
: i* j$ ~* v, M6 \]
I/ |3 j/ R# h: }" R
6 S3 [6 ^0 V! p! ]" P3 O5 J- ?+ R;;setup procedure
) `: _4 f8 F5 R5 {( x
& W+ H& {* G2 F" Oto setup
6 a% y9 k7 u. o$ f7 V; ~( b
' p) s9 M' r8 g0 D) D: U+ oca) M* ~- z, Z1 Q4 Z: I
; ^; M, }& g: ^8 q/ r4 G1 b; rinitialize-settings
5 }) b4 W" O4 \. _" \$ E! k+ |8 n& v' B. s: j
crt people [setup-turtles]
2 F; q! a; t/ I
) h% J @# l; c' q& Dreset-timer
/ W" q! h( R2 K/ q' p* t* D2 v. A# K* P8 L7 {0 G5 v
poll-class5 I) d- n+ o. ^) e/ m7 d k
( P$ F9 f: \4 g) p: t* d7 C# M7 |
setup-plots/ w5 S" @* i0 T) O Z
( B2 {/ H I8 B! Z6 zdo-plots# B% ~% R! m; @$ f& X+ H' g, u
end
' B+ b, |; Y- Z* M* [! b7 f3 o; _3 g2 L. w8 l4 A7 m
to initialize-settings1 [# y1 x8 h$ u# F. |
8 ^% B, g9 w* d7 c! K( c7 e
set global-reputation-list []& t" J6 B' h0 ?5 q) J5 |
* C+ p( r E" @7 u, m; h% d& Q9 t
set credibility-list n-values people [0.5]
9 ?+ `2 ?* [) E/ L8 ?4 l. V: D1 E/ c
set honest-service 00 C: m+ P" q8 E: P) V5 e6 [; {
6 h+ Q% A: b( p! U
set unhonest-service 0
! O# Q3 m/ H$ U4 n, l& ?% a$ ?5 n2 S) U* h3 i
set oscillation 0! B- F) w( K6 e
7 m4 R; a- X) h( w1 k4 C; Bset rand-dynamic 00 {" W/ ~* n; \8 Z
end
" d5 b2 C9 V, Z2 E$ l7 W1 M7 q! a# _, b
to setup-turtles K, U% Y, H! f3 c, Q' D/ q3 G
set shape "person"
9 q7 m4 H7 t* P2 `setxy random-xcor random-ycor7 Z2 z v: j% b4 r
set trade-record-one []. M4 h8 _+ @4 p1 _
% j2 U: H& w% o' G
set trade-record-all n-values people [(list (? + 1) 0 0)]
+ \7 L. b" E1 j5 e* I% K
( z% |1 k- W }6 \set trade-record-current []/ p: v3 L* s3 F7 D4 T
set credibility-receive []( H8 X# d7 G9 A0 ^( Y* J& x
set local-reputation 0.5: p! g; F5 }/ N; u# _
set neighbor-total 0
5 U# L! d5 [5 ~' g0 |set trade-times-total 0' @" m/ M+ {- T" @( @
set trade-money-total 0# P# z- q" \( K8 E) b q
set customer nobody- O Z% j$ q) o1 r1 v1 R0 e, y
set credibility-all n-values people [creat-credibility]
6 E" a- P' X9 f2 m9 Eset credibility n-values people [-1]! ]0 c) @, ]; T7 b0 n/ n
get-color
! A7 W2 R5 b2 h& z+ X |5 z
- L* b2 o# X3 [1 Cend C6 h# I- x7 j7 d0 L2 u3 Z& ~1 e
/ p+ n7 z& R( l. i' p
to-report creat-credibility6 |+ X: L. f4 H/ U9 e
report n-values people [0.5], K6 b- [% z# D3 g9 [. e2 n' H" O
end9 i+ ~$ n5 F) N: K# L* r) ]
; U) a9 `3 b2 J, qto setup-plots
9 a: P: k* I2 p% e
; X) c& ]( S* N Cset xmax 30$ G! J' w/ {) ?7 W
4 r& |0 Y, O7 [
set ymax 1.0
" ~2 n; Q) d+ q. L5 U) I
9 R) ]5 I% ^0 ~' m( V) Xclear-all-plots
# g: s f3 r* _$ j% E# T* y# ^
: u" M0 S0 T3 ^+ a3 ~& C9 I& u6 ksetup-plot1
, X0 J5 F: p9 R3 K( [+ n
( c9 R2 }6 H5 S R) T* h# Gsetup-plot2
; c% b3 n W5 U9 J& ^) W0 ~
* _8 z% F3 W* Z9 V8 ksetup-plot3) N9 G! L$ ?" G
end, D9 e% L- D& T. v5 V7 B k) J
6 X, x) \7 B. X' r- w, B0 m;;run time procedures
$ o; F5 I/ y5 `8 ?+ m3 b6 `0 W
) A: q" j, ?% C1 vto go
/ ]+ u" m7 k! e# B! A4 r# R j5 a- U3 ]' B
ask turtles [do-business]
, u) ]( _* n/ T: x8 z. [6 Fend% c* `9 W4 I$ S/ {2 v" j+ n
/ {2 d1 B) u3 _( W7 O
to do-business
R4 F- L* m" C
4 a9 J$ I5 `1 \, ^2 v, ?4 Q( o( |9 _5 G% Q- p
rt random 360. P/ J, u4 v3 N# K+ x* f
j8 w9 X) T3 K' T o, X P
fd 1- F% ?# `* Z9 u$ f. y Y- M
) C2 H: M) T4 P; s8 t! Yifelse(other turtles-here != nobody)[# C. [+ H7 P( T8 [! E
$ D8 l3 B1 W! v( H4 Z+ Nset customer one-of other turtles-here
0 v1 h8 u5 |- m* B5 B& H
6 c# s9 r& c; G0 b% v* P6 }" w" F- |;; set [customer] of customer myself# k% ~ V/ _% e/ {4 K$ ^/ [
% S! H" _" R! i/ ]set [trade-record-one] of self item (([who] of customer) - 1)- F2 `% K7 F4 V- _$ l
[trade-record-all]of self6 s `5 e6 F' ~: e2 V: t
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ Q5 O P8 c$ u! i: Y$ u
. d6 K% V$ Q5 m, Aset [trade-record-one] of customer item (([who] of self) - 1)9 v! h) h. o8 ~, f C+ X& M' A
[trade-record-all]of customer
! Q& C+ G- i$ ~% e: ^. w6 v5 y0 d9 s! Y4 T1 p$ B9 Y
set [trade-record-one-len] of self length [trade-record-one] of self$ U1 I; p% a% q8 X+ L2 }
8 a0 S. R: Q% q$ ^3 T) W" Bset trade-record-current( list (timer) (random money-upper-limit))
5 Q6 P9 `- x) F* p/ s9 L$ d" E
7 q* k+ \$ \% _! @ g0 Qask self [do-trust]5 T. @! G: l( b- ~1 J* k. A) c' S
;;先求i对j的信任度9 u1 y6 A- D/ p/ i; @; w6 W, X9 n
5 m- J% l$ B" z* _/ E4 D" d
if ([trust-ok] of self)1 j+ v1 L7 F& t; Y5 y
;;根据i对j的信任度来决定是否与j进行交易[6 `3 r0 [. [. h+ H
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; q+ \ @; T' r8 b7 e
4 D& x% c6 A- p
[
# o# C) J; s6 z- E1 m1 B
% m! p% U8 J! Kdo-trade
# C, G' J! f# D) P/ _
) b4 A1 C( G1 A7 [6 p) `' iupdate-credibility-ijl
4 u* m8 r4 O4 G5 p
* n+ Q+ i8 ?' o. A; s/ Yupdate-credibility-list+ V* k% F. Z0 V3 @5 A
; J# X% i; Z3 p' t
" ^4 x) X- j3 e8 y) supdate-global-reputation-list
& e/ }, t L1 K. j1 I# Y+ O1 f* s- C1 e
poll-class2 _" h5 T+ U5 L# b, |" ~" x
$ c& |" q& w% F# V" S* E- i8 E; B$ Dget-color1 D7 r% I1 f2 x' X
# m2 G2 p9 r8 H4 J]]) E" V p/ _* v# \; q$ m
9 [0 G) R7 o! M0 h0 m) V. a
;;如果所得的信任度满足条件,则进行交易
0 E' ]* E- S' _/ |! H* T4 X- X% j7 V& K, F
[3 d/ L* N* l1 A
, Y/ J% W3 h% B. Hrt random 3601 s+ B" {+ q- ~6 g; M& |$ {
# S$ R9 e# L8 t1 X# T8 R6 ~
fd 1
3 U, q, T8 f$ v1 h) h ]5 T, L" J8 e3 Q9 ?+ g
]
7 V7 G- l6 s/ }# t2 C. @* D% l, A
7 ]" j( D- i5 L& S0 V1 K, `! Hend
+ `5 Y7 z5 m( P1 u- C/ k# r
9 w+ E: X" g6 G) K$ Ito do-trust
3 Z4 c5 j" Q1 P- g8 @+ m# x5 e% Cset trust-ok False& o O8 _/ P! j9 E- q
6 P# x) H5 I2 a: z/ X4 d, R) ?8 |& u
let max-trade-times 0% B0 s ~, b& x- z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ |0 z7 `! ?3 G4 n" I0 e7 A6 o6 Elet max-trade-money 0
1 r% h* a3 r) l) R2 T' @' uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], r! U' l# u) U6 s; i
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( C- P7 t& b- U/ R8 ^) I
8 G- w; _* B9 Z4 v5 q" Q" v3 H# w
- a$ W% J* c( s }9 f1 k, b/ Bget-global-proportion( @( ^+ }0 q j6 ?
let trust-value
% ~ q- C0 {7 \8 Jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list): `6 `; M0 c0 }$ \8 F
if(trust-value > trade-trust-value)
, K% s8 @, p' i" V[set trust-ok true]
4 a, V" Q5 G% x! j v' R! zend
2 {' ~( _1 J5 X0 ~4 k1 ~
: @1 v0 P: C- z3 |$ f; ato get-global-proportion
) [1 R2 n: z2 }. b: z- L, vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 `! m Z5 V' e
[set global-proportion 0]
4 W7 z1 G7 t; K9 J* X9 \* K% }. D$ Z/ F[let i 0) q- F2 e& J" M! }" J
let sum-money 0+ Q: j& [! t& v& {- c& o
while[ i < people]
" a1 e0 q5 g4 l" h7 }5 s[6 w- R* S$ D. e+ J0 V
if( length (item i7 v3 Q% y$ g0 Y' [
[trade-record-all] of customer) > 3 )% u1 R8 g8 B2 z$ \/ [
[, \5 ~6 c7 _& q' L7 G' q0 ~' a
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# B D* F2 l D6 y& w1 ]], Q% w) p" ~7 y! V% t
]) n! y t' h0 L
let j 06 O4 q% _* ]. D8 J4 U1 u n
let note 0$ R+ V& y( W S( k+ |' ]& b$ O
while[ j < people]
( k4 M* j0 @) E& s$ K[
5 r o q5 x" ]if( length (item i0 A* \+ u- L- b, G. H" _ X
[trade-record-all] of customer) > 3 )
1 b. \2 P/ s9 R( l K" u[0 q" t/ _# l8 I$ U! u# O
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): p5 P9 B) U5 q+ ~ M# z6 W
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! d' i \# i3 L$ t' p5 k8 K6 h
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ A& ` H9 o* V0 b8 N]
( e9 d N) a/ @ K) N( x# z& W7 c]7 `; c1 T* M+ e. X8 w) h. |
set global-proportion note
+ |" F% w Q8 }% v! _/ C% p* {* e2 S]4 Q6 _6 A$ r6 U% a% w* ^) u! j/ [
end" j% t0 @+ Y. y" K' f) v
7 A- k. @* [: L3 W& i2 h0 z! K5 P
to do-trade- b, K& C5 R N/ p: ~) v8 u# C
;;这个过程实际上是给双方作出评价的过程
9 M. a h- J7 kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. w3 u" b$ C# [: B d' C7 U: j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; I! s3 r9 ~- E2 o
set trade-record-current lput(timer) trade-record-current
3 n" v% j( Z) e3 B;;评价时间
. U% P6 ?+ s- R: Aask myself [' t! |% ]8 d; y/ t8 v( o' ^/ `
update-local-reputation$ r3 c% [+ k( U% y! F$ G. m
set trade-record-current lput([local-reputation] of myself) trade-record-current
: x- O% l' C! A0 T]
}# f: e6 u: U7 c/ A2 `8 X( N, Jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 t& s6 K( n" e% m) };;将此次交易的记录加入到trade-record-one中. |( m4 x/ l; x0 f6 ]0 e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 ]( t% x& @/ b9 ]
let note (item 2 trade-record-current )0 E" y _ e! t) N0 o! S
set trade-record-current1 X6 v- M+ G1 p& r% k
(replace-item 2 trade-record-current (item 3 trade-record-current))
! z" x% G' f/ j3 W6 y+ nset trade-record-current& i- V- T8 G" j: P5 Z$ A
(replace-item 3 trade-record-current note): i; m5 h3 u9 A8 U- F' o$ l+ A, ?
1 V, J; T |' V7 c* x) ~
5 {% t4 S+ T' C% N* ?ask customer [% R; u7 ]9 c; c# N" Y
update-local-reputation: H, _: E# |, {3 z" O( l' \
set trade-record-current. ?" D& y# M0 |* T0 Z6 a
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 O/ K' e2 Q8 E" o2 ?+ W]$ j% \! |6 C n0 ~0 U
$ n' V$ [5 s. B" I8 V! r
4 v: u3 U1 B! ]0 d- D
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ a( `# K) |/ U( r( z) T0 o t+ I" l
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" r+ i3 ~, x* ^! k+ i# |
;;将此次交易的记录加入到customer的trade-record-all中; o r0 C+ Y- W( Q. g
end
% ?: f+ t e6 a' Q1 ^2 y( W- B3 K# x( z) v
to update-local-reputation
# F4 W$ Y; c4 P8 `1 ?8 dset [trade-record-one-len] of myself length [trade-record-one] of myself- F; x) F# n% _' x/ V+ A
4 C" |0 y0 P1 a5 N* u2 M
1 f9 M! J, n- \4 ~ i3 K. q- N. r;;if [trade-record-one-len] of myself > 3
: R9 n( K! V5 c7 nupdate-neighbor-total
5 L' O: G7 U: P" j; l% w;;更新邻居节点的数目,在此进行/ ~5 y; ~2 [( C6 t) E, J
let i 3; n1 P- [$ v; Y5 Q6 F5 r
let sum-time 0- K3 h& W/ }& Y8 v2 Y6 p( K6 k
while[i < [trade-record-one-len] of myself]) U! I g0 R; ?2 h
[7 t6 E9 v' ~, p$ w+ E) g+ b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). D+ r% c; P- h( [
set i
! O$ T) g. W0 C7 @% ]2 U* W( i + 1)( @! p& J% x( H- n( w
]
( @2 _( |6 }% e. E$ g9 Tlet j 3) U- |1 x5 Y# c! X$ u. L+ q
let sum-money 0
2 c$ ]% C m" Fwhile[j < [trade-record-one-len] of myself]; b1 @# j, g* A' l5 |& |
[
4 ]/ q, Z% a/ m. Kset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
* B3 _7 a5 b3 Y- X' J- W; yset j
9 g2 ^6 B5 {$ v( j + 1)
' I& i6 s, f+ n) M9 g/ B3 n& f]
$ _% @, x: g3 G$ F* @9 Jlet k 3
; M H3 ?' O' |let power 0, d& f. O8 _6 |) Z7 e% _
let local 0
8 T, a. M$ f% `while [k <[trade-record-one-len] of myself]5 w5 y, N3 J& b9 x+ Z
[
& U" J4 s7 r* f6 H7 _4 Zset 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) % n: e7 N, O! W9 w# x. g' q! B
set k (k + 1)" r) `- A# |9 [& \
]
. }0 I n2 j: r7 }set [local-reputation] of myself (local)
6 v1 V9 J4 o, @2 v( i9 w: @" wend% U1 G, G! X% ~
- p! Z, v0 g" t. H9 \6 |to update-neighbor-total
) V4 q1 o6 l u: F! { |
- K/ ]( [2 K k0 I3 Uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 S/ h6 w" x5 A6 ^7 P
6 f0 m) T) c& x# t
( a1 r ^- h$ k1 x& v0 |end
. D( `8 i4 d1 v$ {) z0 v5 K" C4 G h M4 `
to update-credibility-ijl + k' k2 a+ F2 s3 _
( Y% @4 q, q7 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。
! D3 w4 n. r7 X" I9 N! alet l 0+ k* R/ {1 M E/ S
while[ l < people ]; Q" v, i5 v+ e: I* t/ i5 a
;;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) V# _3 y3 P; ^: t
[
9 A0 K! ^4 a H9 m3 plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 k# @3 ` K5 V- C: x/ H% Pif (trade-record-one-j-l-len > 3)
w: w5 F' g! B& U, _[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-one9 p4 C8 z7 G0 f* k
let i 3
8 p) I) `6 c7 Y( Xlet sum-time 0
- m+ q' R# l2 H& lwhile[i < trade-record-one-len]
4 _" v5 u4 o: G. F4 ]6 R: W ~[* D) b! b' w x9 D" ~' x- W, N
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 S! t5 Z! I, N. ~$ z' c
set i
" t; g& m9 E4 U# D& q8 M: ?( i + 1)$ h8 f$ d5 ~5 s" a! M7 A: O( y" P
]
& L( E2 b4 |. l( H7 Z- S, rlet credibility-i-j-l 0
5 g* G: c. x& [! ~;;i评价(j对jl的评价)
& c/ e7 X. ~% O8 B& slet j 3
* t [/ T7 [' vlet k 4$ n( o- l6 M! G/ |& f+ x! A
while[j < trade-record-one-len]6 m1 m4 U, O0 |( ]7 r
[3 s* c5 D- d6 R& _2 t
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( I6 M9 V/ A) W0 y' T
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); _: m1 `1 k7 b" J
set j
N7 Z. N" e" c. y' E0 c( j + 1)
) P& m9 m4 {5 H5 _ P+ k]& |- i1 x) T/ R5 j+ f7 G8 F
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 ))
" N2 z5 g3 m0 @/ p O5 B% F5 d: I! z
L7 q6 [7 d7 } M! Slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( S% Q9 U2 p) ]8 A! L, z3 O! Z;;及时更新i对l的评价质量的评价2 c q* @: |$ z' J- o4 i4 I
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 U3 M4 N2 @0 C! j: X2 ^- g% Oset l (l + 1)
4 i9 Y6 F* o4 s2 B]5 g) B- H$ M; H: o) @' G% O
end" U" s, Z( _. K4 g8 B2 Q7 F
/ S2 q. z; j/ A/ g. P' k
to update-credibility-list
6 n0 U5 U. t, }) n3 {let i 08 J' O- e1 z, S" o
while[i < people]
6 u7 \, F5 G$ M% Y[: b$ `& P7 V0 u, e$ d
let j 0
* O, x: q% }0 o4 ?let note 0
- l; r( e8 O3 I! j0 t- m6 c! ^! klet k 0
# M, @0 @1 q8 K% I7 _3 X. \;;计作出过评价的邻居节点的数目4 [/ ~& i$ e8 u( f
while[j < people]
& y1 M2 c, u- U6 Q: a, e% h[" ?2 Y: m7 O3 W3 K f/ K& ]
if (item j( [credibility] of turtle (i + 1)) != -1)
$ z- j+ S0 J1 w7 Y1 R) p3 Z;;判断是否给本turtle的评价质量做出过评价的节点
) Z1 w7 v2 d% T8 \$ C0 u[set note (note + item j ([credibility]of turtle (i + 1)))
$ w/ g1 v" _5 t;;*(exp (-(people - 2)))/(people - 2))]3 g" T; s) U2 {+ T* _
set k (k + 1)
) K( |0 k2 I) [. N0 `( K]' a8 ?6 O& ~2 e6 l1 v
set j (j + 1)
! n, o! |+ g0 I+ J1 U7 `1 U]2 X2 r* l0 K+ n% h' d9 }" p
set note (note *(exp (- (1 / k)))/ k)
. N6 k8 y. \3 t2 K; y) ]4 tset credibility-list (replace-item i credibility-list note)( S* R" h: q1 E( {4 l
set i (i + 1); J, X. K3 S: a0 _- D4 G) I
]
! e& s- l x8 M' U$ ?4 V, oend
: `8 |4 t5 A2 t" l& t" U- D9 V" |! e, w
to update-global-reputation-list' z, E: @ j) J: u, J4 c
let j 0) f5 a: w+ t6 `- X* j: e( d
while[j < people]
& J1 \9 o; `$ M/ B. v[$ T( I* Y7 u+ k
let new 0$ S& l6 \/ p- o; v& a
;;暂存新的一个全局声誉
+ c5 o7 r$ H3 W+ L, Plet i 0
7 h& G" |, k4 ^1 plet sum-money 0) H/ D" [, O9 l0 }( ]5 P7 E
let credibility-money 0+ Y) x7 s! j5 z" g
while [i < people]
+ f/ u2 A3 m2 A/ f3 P[) _4 }& Z' b+ u3 o- U* ~! t2 c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- c- b- w6 t: y& g6 C3 X8 \5 M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 _* f8 F/ C% A6 [8 _' hset i (i + 1)
7 O; B2 R* X! C4 p, \8 h& H]
& {0 S' r1 q" [6 Plet k 09 [8 X r, t" |* o& y* V" R
let new1 0, c- x/ |" |7 v5 R5 q+ |
while [k < people]4 {6 L8 J& b/ L$ T8 W4 b( H
[+ {& V; X2 z) Y0 U! w
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)( D; Q- D: _8 N1 ~* i) ]+ I
set k (k + 1)
1 ?/ R- q0 F" @% B5 |4 N2 r$ k: ?]
. a. A: ?/ d7 Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" E" t4 c/ V! B6 d2 ?set global-reputation-list (replace-item j global-reputation-list new)
8 Z- f8 x) W: y0 c; C( p9 ^! Pset j (j + 1)- P7 m3 | y# w6 [: J& Y5 E
]
" j$ o% n2 {! N, t; R: I5 i8 lend& M- Q% Y- L9 ]: S. R
9 J9 l% I# V, W" j- W6 B
* d8 }* i+ z% f3 }$ ]2 S* G
6 D* F8 t9 e& r* A \" y7 uto get-color
# X0 l5 n& Q0 s3 N" n' I- t. `# u; ~; Z
set color blue
% l- X4 u& s7 \: Y6 Eend
, D- O4 I; F% l+ m) s6 m: H& V4 s6 T$ o# r# G
to poll-class
! b S7 M/ r5 J- f0 c. ]end
1 a* Q+ y* @+ A: Y4 A9 b# c: t. s+ U; ^! ?7 K- o9 D
to setup-plot1
, L& e+ e* u9 O" a
' R# N- v( c8 Vset-current-plot "Trends-of-Local-reputation"; N {+ T. d" z5 m' D1 L; |: |6 [& M# l2 V
3 |; J" N; j! n) M) m
set-plot-x-range 0 xmax
) i) d1 {* V/ R w2 T
) O8 }6 X3 s9 ?2 C3 |% Fset-plot-y-range 0.0 ymax. j2 u. { l( L/ k# s9 y: J
end
& V2 D3 h/ B2 E" ?4 w7 X" Z1 G6 T& C) c A7 A' s
to setup-plot2* L' z1 {! K6 X; Z, `' r
9 B: ~$ x0 K" @ C8 o: b. h% i
set-current-plot "Trends-of-global-reputation"
5 o3 y* ^6 \1 p& Y0 B3 u' Q( y% \2 A: p$ c( }# K* X2 }1 Y
set-plot-x-range 0 xmax7 t N. P# h; |4 D/ {/ L5 p7 N% S
* B/ q3 u* r7 J) q$ H7 M: Q% {
set-plot-y-range 0.0 ymax% g! Z ]+ U$ b0 Z* g8 B
end! B* X3 g; v! x; R
( I* l6 \3 _) B& M% e0 n
to setup-plot3; C( A2 l+ C9 z9 d3 c3 P1 @
3 j& d+ V( S, B
set-current-plot "Trends-of-credibility": N4 P6 S: f1 ?4 F# v! M$ Q6 D4 _
+ u, m" L& X6 C* d4 C* Q! z3 P" |set-plot-x-range 0 xmax
! ?; z2 R0 b5 y3 X" w4 ?. I/ S1 {+ B+ Y0 d" Q
set-plot-y-range 0.0 ymax: U. { k/ x) f5 Q
end: D* O& a# O" d# C! e. [
4 A3 W" e0 h' d0 ~4 S- eto do-plots
- Z4 D0 a% b# Nset-current-plot "Trends-of-Local-reputation"
7 P! p; i6 N6 {# y2 aset-current-plot-pen "Honest service"- c. A) A0 G1 s; Z' K8 ^
end9 I+ Q5 ]4 P% ~. x6 e' u: M/ A/ }. y
) B' c# b% k" w! o+ j[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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