|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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# E( h" W: h* S1 ?7 p
globals[
6 m" d" Z1 ^2 l- K6 M" j& Txmax0 v1 n, o$ B% q `: D: r* z$ v9 a
ymax) E$ @% p: A- [ [9 ?
global-reputation-list
% ] o }5 i# u" L: p' q6 `# M9 }) c7 i+ T+ @ A: b& G8 E$ a3 C
;;每一个turtle的全局声誉都存在此LIST中
* B1 B( \0 {! z) F/ rcredibility-list
3 v" N4 @" ~- r& C' M( P6 |& t;;每一个turtle的评价可信度
7 G% `% u0 f& C/ W: `. z2 e5 `honest-service
9 U5 u& t' k1 A1 Z) runhonest-service
$ q# c2 s5 c; J; W9 ^7 g3 Voscillation% `3 m! \" @ b# `" @6 `5 Y I
rand-dynamic$ l# T' v, x* G. w& q# S
]
) I" j3 s0 r) r* t1 g9 Q. a F
" |/ h- w- d. b1 H6 E' n; Uturtles-own[9 r% ? Y4 e3 n; Y" n0 V
trade-record-all
( R+ A* a: j* _( Y* t;;a list of lists,由trade-record-one组成) G$ V4 p+ h( m' n0 Y
trade-record-one) y5 S. D b. p9 z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 [ y" o5 A" }7 O- K, `: P; z5 t: [
/ }# J5 \2 l7 {" f1 n;;[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]]$ F8 |. s3 ~5 z7 ?: k
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]
1 w, ~& q N m, y0 pcredibility-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
# r! l/ ?9 y4 Y7 ]neighbor-total
9 W, m2 f9 j5 D9 J;;记录该turtle的邻居节点的数目
3 |7 m8 I. p7 L! T% ztrade-time
! H! l t; Y) N- w8 l6 B;;当前发生交易的turtle的交易时间$ m9 X& U. @+ q; f
appraise-give
) [, e' x! U* P# y: |) K;;当前发生交易时给出的评价
# x/ G/ m- b7 v9 ?) y. Q6 zappraise-receive
' I% ?: g \: o;;当前发生交易时收到的评价
! ?! o$ {3 T2 q9 E% C6 U' Kappraise-time3 |$ a8 W; k# ]( c' T
;;当前发生交易时的评价时间3 i7 x3 S) b; J" j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 Y3 `4 A9 v [0 Ytrade-times-total
5 v7 J e( a# y4 v5 f4 W& T* g i;;与当前turtle的交易总次数/ t* C( |+ i1 N$ E) S
trade-money-total9 s4 s: I9 J+ ]" T- {
;;与当前turtle的交易总金额
, X# Y- s& a# ]local-reputation3 Q+ G3 q: W" u# x* F
global-reputation
: B% E$ |0 b7 u0 j( ecredibility
8 z0 V$ S* P" r, C;;评价可信度,每次交易后都需要更新! K8 I! J6 e( u9 H
credibility-all
+ p- {' S3 Q4 [ ];;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
+ ]1 h1 l, X0 X* b J, v+ l- Q7 q- r
3 y$ F: ?* h! @% o* l1 D% o7 V: C;;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% [( W: f, _/ U/ F9 b( a6 ?
credibility-one
' ?4 V5 S- w! V$ N3 w3 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: L, V' c+ A' l6 ?
global-proportion
4 k1 t# }) [' ycustomer
. L. h5 G c M9 u7 dcustomer-no$ n; j7 Y% P# V1 u# d) t" ?1 V6 Y; q
trust-ok9 E' F: o; H& Z& h8 \3 a
trade-record-one-len;;trade-record-one的长度& J1 B2 u/ ?% Z: E% [; r/ t5 u
]' Y. N7 s7 h8 h# ~" \
: f# W9 j: r- s4 F2 P# A* _;;setup procedure9 l5 w: D) C+ v! x3 |0 ^! b! `4 }2 I
' ?8 q0 f2 w0 C! j2 o' i$ T+ F( s+ zto setup
9 J+ o1 C& u. p- ~, p3 P% d/ \+ `; V. ?$ L! s F3 ?% p
ca
4 h* d9 o& H w" j% `" M6 A4 i( y% @4 A% Q) K
initialize-settings
4 A4 f5 X7 S& ^, x' ~& \$ Q! y8 M2 \$ ^& t3 z& \: B
crt people [setup-turtles]& w$ V9 k3 p* q& b3 A0 M
- m- s5 W I" c3 s7 Z
reset-timer9 K8 b8 o3 Q; g a4 {
7 i& b! r8 L# }$ Z2 N0 _poll-class
! r# o1 Y5 q" Q' ?5 J: f/ ~ w/ B9 R# H
setup-plots
- n/ d! Q+ w/ S, c" P* r9 [) c/ J; ^# D" s; P* H9 u8 C% H
do-plots y/ {7 O" z" _& i5 O5 S
end: D1 V. f5 M, O" M3 a
$ s5 q4 |7 o) Bto initialize-settings
" y, a0 c* X5 r) m V# X7 E* I$ p" a% h: v/ w
set global-reputation-list []
( I* v+ v1 O/ d7 E/ V
4 g S5 L% _2 O0 ~, D) X; O3 e1 {+ X/ tset credibility-list n-values people [0.5] r1 W5 ^0 B. a3 k
* g. L: u( L' ]
set honest-service 04 ^, P, P! W' \: g- Q1 a
$ m) N4 c" B; C" c9 X2 M% E9 B7 J
set unhonest-service 0
% M3 V- [3 ~) T% a, z3 f: }
; Y3 @0 d; o2 ?3 M7 vset oscillation 09 K% ], r3 Y' E7 \, A& b# S
8 {0 a5 Q% w( J, [; v/ z
set rand-dynamic 0
& K5 m6 }: u2 A% r; O( |* i7 kend
: j( i) A. l* Z0 i
; H7 O' C0 i' [0 ~$ t2 ^9 A! bto setup-turtles % b; f' _' c! g# r% _
set shape "person"
0 i) W$ F- h2 O8 a& q$ w& C V+ psetxy random-xcor random-ycor
8 M; O8 `. m5 g& \4 aset trade-record-one []
1 Q# C% G* Z# a5 G. M k" H* j( x- A0 F
set trade-record-all n-values people [(list (? + 1) 0 0)]
+ a3 k! L) f4 D( T/ I# L9 f# q5 w1 O# Y# Z
set trade-record-current []
& I: z4 l( T; x4 \+ pset credibility-receive []
3 {2 J3 {0 n3 v$ t- J. v7 Gset local-reputation 0.5
: T; f; m$ I9 ] x* oset neighbor-total 06 a6 K' t8 Z9 s; H2 A
set trade-times-total 0
$ c) w: ? E2 V, N. s: ^8 J- m* |set trade-money-total 0
% U0 r8 ?+ j8 _' a/ O( ^$ _+ `set customer nobody
4 U, `; B0 J, g4 X% Mset credibility-all n-values people [creat-credibility], l8 ^ \7 ]: P& ?
set credibility n-values people [-1]7 c* s9 _+ A% S$ ^% t( e4 d. I
get-color
* j. k Z; {1 J1 D8 Y0 J
& F8 q; X K2 J& a1 iend
6 m' I: q/ ?! V0 N( D G/ G" G+ Q. n9 y& k9 b, l4 t* g. p6 \
to-report creat-credibility
- j& U( @) s3 B w& }report n-values people [0.5] S8 k+ R* _3 _1 e- s; N5 J- Q
end6 R% H6 r7 C6 ]: l, O) c6 t
9 z1 m2 ^% U5 m+ y Oto setup-plots7 {7 m8 g2 z+ H, \4 r9 P* Z
) ?8 z- b4 e/ }5 A$ j8 K
set xmax 30
* c S3 B( L- W5 B( ~0 m$ V/ }9 D/ r9 H5 h0 J5 g M. b
set ymax 1.0
, |% l6 }$ m# P3 I, f G+ W( N- U% _* B, w- G9 u
clear-all-plots9 C% B$ f8 B* I3 C/ M# r! `' Q2 V
% C6 h1 U& A ^, w1 @2 H9 v
setup-plot1
8 ~" R- E( R+ l ?# D! ]6 ^* F' Y% i& @* U& q) S
setup-plot26 K, @6 G8 f" L" @( y# \4 l
: ~+ i# P- V/ D! O g: M4 k
setup-plot3
! y# q6 [7 B5 g1 R. Z* t+ wend' x$ [9 h' o3 |
( V' E$ q1 U! I; q8 ` ]
;;run time procedures
. _. l! ]- `; V) t1 K# t( f3 ^) M; ]. [! \6 ?+ x! v9 J
to go
?2 y2 D* I7 M7 K' T. q, P0 e0 x: ]4 A% ^- n- l ]1 R
ask turtles [do-business]6 k5 H8 E; S- x8 R4 W5 @
end) [+ k" p4 L8 C2 c/ t3 L
* M4 W" m& u# U# }2 ~8 E5 l
to do-business 1 B) l" u8 o7 n
* N' Q$ j+ S% s6 S4 @
% ?8 M& }4 r; x3 ?' ?1 ~$ Z
rt random 360) b s2 q7 I- K$ B3 O
* `5 z9 Q3 M9 t* z* P' I/ F
fd 17 T& ?, Y: U% x2 H
& Z- ?. B6 l& N5 u/ ~
ifelse(other turtles-here != nobody)[
4 P5 _$ V' O% ?
3 d) v1 o( \! n7 @set customer one-of other turtles-here
. U# y) r/ G# q5 p
8 A6 o/ Y3 l: I;; set [customer] of customer myself
: l: O! x4 q9 a
0 Q1 K. I: Z0 E5 Oset [trade-record-one] of self item (([who] of customer) - 1)5 C1 _3 `" h/ g4 P. @
[trade-record-all]of self
$ {+ W9 Z: E- t! T;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ T# N; z* w* ~7 s+ l' O6 m; g$ j" y4 Q( o5 X$ K2 l
set [trade-record-one] of customer item (([who] of self) - 1). u% c5 B0 V7 T! j7 C0 R
[trade-record-all]of customer: _: R7 A: D/ W' `+ v8 [5 Q
/ m8 e. ~# ?4 y* a, H5 m9 [
set [trade-record-one-len] of self length [trade-record-one] of self/ Z0 ?- _* Q: t9 c5 |
7 G* ]) E' k: J& H8 Z' \set trade-record-current( list (timer) (random money-upper-limit)). L; x5 {/ L$ ~) b: b' s; `
5 f D, q8 a. fask self [do-trust] k; P7 Y7 p) Q' n6 \" _
;;先求i对j的信任度4 u; d) u: g9 }6 n3 c
1 n! F: V" S0 }& L7 U( Q0 n; ]% Nif ([trust-ok] of self)
8 }! c: Y' R0 B* p5 A;;根据i对j的信任度来决定是否与j进行交易[
! a. D* y* {0 cask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself A4 V% m0 Y) j0 B
b/ B& _( Y# b1 n/ ^( J
[2 J) w- m5 H! n& A
. x' C7 m$ W" v5 h5 d' r$ ~1 pdo-trade
# V6 c. Q9 F" k" A; G! T% u; Y
$ A9 C; w/ u8 g5 g4 Bupdate-credibility-ijl* h$ a' l' e5 c, G8 H5 n3 z" R
. U1 ~7 G: h9 V v/ Hupdate-credibility-list& r9 a8 Y1 R0 G3 p( P
! ?+ u2 j- [2 E$ D
" i$ R9 n: G; R0 {" @. jupdate-global-reputation-list5 L! y4 z$ I7 A" {7 [ |9 H T
( e) c# ]' y7 a. k, dpoll-class7 s2 v# q, R& P* A- Y' m
" r/ l; P- o; L3 N
get-color
- l: Y& B: B- c1 n. ]& j. P( M( b% f% Z
]]
4 D; C* Z9 |) f6 u$ A4 B4 r0 a3 v8 |7 l* N1 V3 D3 _, w8 ]8 m
;;如果所得的信任度满足条件,则进行交易3 r o, @+ k/ I3 c
J" y: }9 `5 j8 Q/ ~: t, a
[; X( b9 |0 o0 R( z6 U3 p+ D4 ?
6 H4 `9 \* a4 G5 a7 urt random 360( l' X0 n/ ~3 r1 X
6 |" B5 x; R5 Y" n2 V- f: dfd 1% F- l! c- J9 d1 e+ P# W8 u; P
3 G, ?% g$ N9 M4 x]) i3 D' H# e, f6 H$ T
# M, g7 t$ B2 ]- n& ~end
* P2 h5 E- c; O/ ~5 Q! N3 c. l8 M5 z
to do-trust
+ I+ C, @6 h' t1 i/ Oset trust-ok False
A; O' T O) _$ ?1 K& n
. j8 S: {5 H' M% y; o$ U) f- A# e: ?" E0 A/ O7 A, n" m
let max-trade-times 0
0 o& W X+ p5 ]; Z7 V( w/ ]7 [foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 A6 ? m9 J8 w9 m' h
let max-trade-money 0" T) ?6 K) o( V+ f. ^; ?5 \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 A& Z2 r. l! L6 x1 g- b
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 b, A1 \3 N' o F6 G- B2 g5 u; p& A
+ j5 ^# S1 \3 Y+ Z) A8 M U
" S( B/ \) c& f" S( ]+ Vget-global-proportion
9 p$ n$ d0 A# v& ?& alet trust-value
6 X; L! F/ Y1 ^1 E5 ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)- K O- f) k" R5 _2 }
if(trust-value > trade-trust-value)* E' J' M8 h/ ?4 W3 T
[set trust-ok true]
. A$ l" r2 D+ q+ W+ nend- I6 P6 x9 _: E( w
" {5 A6 B0 z# K- T, L4 L2 mto get-global-proportion1 L S9 x* ^6 @' S* o
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
2 |6 \9 ?3 S2 y% J) J" k! a% R[set global-proportion 0]- t4 i' i6 f! U( G' B$ ^
[let i 0
! ?" s# L( V# L5 c* hlet sum-money 0# T7 v" }; v6 `7 i6 r
while[ i < people]( y3 T& A K' D8 Q& S( d, B
[
: c( t) H, R4 O" ]. X+ `if( length (item i% W4 f8 ]5 A6 M9 G/ `4 Y
[trade-record-all] of customer) > 3 )
) @. I$ L ?" D5 X/ z ?[# c" M) K3 {2 n$ S# @0 ]
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))( R( o+ Y: u2 r4 ~$ b" N
]. r B- v6 R* n+ Y# g" Y- x4 Q0 R
]+ Q _$ c, g+ u0 c* h3 N5 `7 [( A( p
let j 0
. b* z; S9 S% b+ `* tlet note 0! A( ]/ ?" X) r
while[ j < people]
4 G: L% s8 f6 T[
7 C* S) e0 e4 J; C- P1 V) Y H" eif( length (item i
0 M- [8 p& _$ i0 Z[trade-record-all] of customer) > 3 )
7 I: b% e$ @# o0 a[( R4 W3 Y! E9 {
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* K0 K# u( w% V) D2 l
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" O4 y: p& v: I' h1 P3 _5 o1 u! b[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 q+ G4 M2 B [8 Y]
( B0 h7 p, G" N6 E. B7 C]
* f; W% {) N) y% l2 S5 `) \ Y {8 Fset global-proportion note+ R+ @% l2 J- H
]
" l: d+ l0 `! @& nend+ l) D! b1 F# q- G
2 |$ R$ B9 o! Y% q0 Z2 Yto do-trade( t4 f; I3 ?9 t7 b2 _5 E
;;这个过程实际上是给双方作出评价的过程# L7 j! W: R5 v2 ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 f0 ^; D/ |3 j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" \: K6 O) ~) E9 oset trade-record-current lput(timer) trade-record-current
1 ?+ k; }( K, C" K( E;;评价时间
3 J, ?3 R4 D! w. e, X: h0 Pask myself [
; T& u7 X5 |8 n+ W: M/ E7 Y# `# hupdate-local-reputation, Y+ e% y6 I0 p+ t2 V: r
set trade-record-current lput([local-reputation] of myself) trade-record-current
& Q5 d1 C6 r2 M# `], M! ?9 K9 V% l2 Q3 h+ v
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 _& b/ d! w% E3 ?. {% N3 c
;;将此次交易的记录加入到trade-record-one中
* ^7 u& l4 T. J0 W* l9 xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
+ x' _% ^9 O1 H. Q0 l' k0 Jlet note (item 2 trade-record-current )
1 U- L, |/ l' S' K9 v s$ w, p5 C4 \; iset trade-record-current7 G. r0 `4 p* G
(replace-item 2 trade-record-current (item 3 trade-record-current))5 P- Q/ f4 y& q4 s4 I
set trade-record-current8 J0 g( v8 Z1 I# Q, O1 G
(replace-item 3 trade-record-current note)
: G% e$ S% `8 D
( X$ T2 X6 h9 o$ N# f& Y; ^2 I, Y- F# \+ g
ask customer [
; W9 u) y' n3 }9 w4 K* Aupdate-local-reputation; G: }- k J+ l- b, j5 q
set trade-record-current
/ Y* G9 `- F) s. Q; t, y1 @) b- z! t(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ X0 p7 l8 I# _+ l# o% t]
`4 U; E& C/ L$ F# n, j4 v1 i! Z0 [0 N! `
+ |. B: T7 ~: }; b2 n, b
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ Z* C$ s3 j: k0 f! d9 @+ ~$ T; k0 {5 @; u
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- i0 X# ], F' d1 {0 }8 ?
;;将此次交易的记录加入到customer的trade-record-all中' J* a9 b* v$ s
end
+ z' O2 p, C0 v4 d8 N1 i$ ]& b
to update-local-reputation/ l/ h+ z8 _& D' K, K9 s
set [trade-record-one-len] of myself length [trade-record-one] of myself
x7 V- X0 P) U. t+ X3 J% N' Q- C6 v1 O) O
9 e0 D7 J6 m! a, T
;;if [trade-record-one-len] of myself > 3 , E8 a0 f1 f" i+ u. m- x) _
update-neighbor-total$ @" B3 Z8 B5 i/ \" \# H7 s/ ^5 F
;;更新邻居节点的数目,在此进行7 R3 ]8 V% n& \# K3 E8 \; t8 a
let i 3
- p. I" Y. L. k; ylet sum-time 0
: R4 W% T# @# `5 S4 | e7 swhile[i < [trade-record-one-len] of myself]
; F" a+ e& w* f. v2 T2 Y2 q0 t; R[: g* f& R9 d! I* J6 u- Z4 G- L
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* r) m( k; M" k" Dset i- |) a' m, {% R9 x% K; t
( i + 1)# \/ ]+ o7 Y$ W& I1 r! x& X; v& ~
], H: M& }: R- n1 \+ {5 M0 T. g
let j 3
; J3 ]" F+ q0 O$ E/ w# x7 tlet sum-money 0
# U; s( B+ G8 K" V4 l9 Qwhile[j < [trade-record-one-len] of myself]* i4 a/ ^# _+ x/ w$ p1 B1 z
[ v& E6 E) @/ s5 T9 K! ^- f
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)
, K6 o; x2 d% S$ iset j; F9 I( N. D& p3 Q. d9 J
( j + 1)
* j4 o9 g9 P& B7 X]
5 t% K. x8 p" M/ Qlet k 3
9 v+ C5 @. l O& Dlet power 0
2 }2 L f" [' t3 R ulet local 04 {" f$ m% d3 Y2 y' l
while [k <[trade-record-one-len] of myself]7 a" h* u' z2 k- x: P6 X& \, x
[
- e: J7 e, i8 Y: ^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 F+ `) ~9 N% R7 m* Z. _ ~& I
set k (k + 1)
( `3 J7 h( n* h$ h, x]
6 j1 ]; g, [/ r' Q5 ?set [local-reputation] of myself (local)
4 J& y5 m+ A/ v% |* [* [end
8 m3 n8 O: W2 b2 e5 `5 k ~' l: k4 j. t6 G3 n9 E v" U
to update-neighbor-total1 _% ^, ]. }: z1 ]$ ?) P( H5 C3 j
# ~9 [# n' ~1 \
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 v0 D H9 c$ i5 D. x0 S9 a' z6 |3 w3 Z
% |: e) F0 |- n* {end( W+ K |6 G ^6 Y: j$ X4 z
8 `# @( ?+ B4 U" U2 gto update-credibility-ijl
3 s6 Z3 }( D# S1 _* }) ~1 F' d( H7 v( Y# Y P' w2 V- @
;;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 q& d* W5 d! f4 G/ u
let l 08 l# J0 ^0 _/ B# l8 L: K+ m; T( i1 M
while[ l < people ]4 G0 n* |+ q* m* O$ p
;;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
- S2 I0 C5 W* }; A, Z( d[* r2 \1 v. w5 l7 [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 r) e. t! P* q. hif (trade-record-one-j-l-len > 3)( B/ X8 W8 p1 L7 m" f
[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
2 v6 J2 ~7 e. @% K8 ^8 Flet i 3
2 j" ?5 I) _8 P. ?let sum-time 02 s4 D3 T* A( e. g8 V% H8 ]
while[i < trade-record-one-len]
: p7 h9 v1 ~1 w* G[$ {7 r, x# z8 @9 j! J: V( q3 A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% h& I: N( _$ L. t; }1 u4 T+ M8 b
set i
7 R- z; O+ \6 O/ ~$ F8 O( i + 1)
" ^8 W9 Z) B1 v7 |7 _! d0 o) S]
: N/ ~' c5 ?$ O' Ulet credibility-i-j-l 0
( \& g3 Z( @3 {9 ]9 W+ |9 f; D, H;;i评价(j对jl的评价)
% Z+ c- ^2 S! O; T! m( Ilet j 3
7 Y a% }% [- A, Ilet k 4
( ^3 D4 K! P) O3 L8 w2 k4 ]7 Rwhile[j < trade-record-one-len]
0 u7 N/ k, g* Y: G3 [0 i, N[0 U2 p! [ H% K2 z8 N
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
" f" H& \- g% S* C; @4 o& A; Xset 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)
6 g9 ^8 t8 j" [; I! k1 ~5 K9 Oset j# \3 @8 M+ J _0 M3 y: m# ]
( j + 1)* r2 b. n c. P/ E$ V
]
) y6 g$ K, r. V. x* [* Vset [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 ))
- B4 B; N7 P; _( o# t; S& \% t* \1 o$ [0 F; O$ v
% k* \, Q( O, T
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ M( j$ Z5 C- P& P" Q3 B# u/ i;;及时更新i对l的评价质量的评价2 k% T& k9 A9 i, L
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]/ ] {# {# v' b" V: N5 y$ u
set l (l + 1)
* l- ~; X, P/ E+ O! U] h+ Y7 {7 r- A8 b" Y
end
$ F" ^2 r, ~# o$ R6 k( R2 |% [- K. V9 H" j+ Z7 T
to update-credibility-list
- l" ^0 F! |3 Y& }% R. {* x3 J/ k" Klet i 04 r& k# k* m) W3 C+ E# z& Y& c1 o. @3 Y
while[i < people]
8 M: g0 G. ?0 u4 B6 F! g[
1 H I- p& t- d$ z/ S; M' F8 G) {let j 0
: K( w p8 e2 |& h4 H0 wlet note 0
4 {/ |7 {( O; wlet k 0
. w; @" _2 U7 q3 ~9 Q6 B# a: W;;计作出过评价的邻居节点的数目
f/ V9 x( o9 r& O' N" K) j& Uwhile[j < people]
4 u. u# M) K0 b. c+ b. S[* I: e" ], Y6 z
if (item j( [credibility] of turtle (i + 1)) != -1)9 @, G. o& J% z4 C, t6 \% C [
;;判断是否给本turtle的评价质量做出过评价的节点
* R2 l; u6 k5 H: }2 T[set note (note + item j ([credibility]of turtle (i + 1)))$ {4 R o+ g. }
;;*(exp (-(people - 2)))/(people - 2))]7 f' U' \5 [+ h3 P
set k (k + 1)4 ^3 v; x1 X B: u# e. _3 _0 F" g
]3 @8 k+ ~6 r- t+ w2 X+ l
set j (j + 1)' s# U4 w0 C4 C; f2 u- ? m8 u
]
9 ]5 r4 {7 {9 eset note (note *(exp (- (1 / k)))/ k)
# q+ Z4 N0 a. Z. Rset credibility-list (replace-item i credibility-list note); V( J6 G3 m5 N0 d o b/ M: C8 i
set i (i + 1)
# _. q0 H/ E, H; x( N]
/ v2 G7 o3 @; k' ]( g! F+ {end2 z# E0 E* n I2 C
. l7 x8 ^+ N, |- yto update-global-reputation-list. Z( E" Y, _# H+ Y3 W% ]; T# }3 W5 M
let j 0
' D4 Y R) J& N# G. Ewhile[j < people]
% Z% N& v7 y! f0 W6 K[# m7 w* B* B0 j6 b# O/ f
let new 0
% b+ L4 A% Y; S1 X( F" n( x;;暂存新的一个全局声誉- I3 Y7 h% y' b3 k
let i 0: _% [( Y6 S4 t" \
let sum-money 0
* r/ Q: \" N1 T9 g- O Zlet credibility-money 0
. V% Z" a# t. X/ P& owhile [i < people]0 D+ ]2 r( L, b* Y/ e, B
[0 B; X) r; Y; _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& M# Q% r! g" Kset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; s3 _! _& _. g. C2 Uset i (i + 1)
+ M$ Z+ r; t! V]
1 @# K+ Y. H% U* W5 F1 _# Blet k 0
+ e; C1 }/ ]& ~0 P; V4 b1 glet new1 0! T4 D' N$ q/ Y* M h% ?1 ^3 U
while [k < people]- O; f$ C' i7 O p: b
[4 F& S/ ?( i3 _* Z) _2 }/ F0 x1 y
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)% K& l! S/ @1 R9 G
set k (k + 1). `, Q5 K+ B2 N6 p7 q: d
]6 @$ Z! r4 T+ v9 z2 |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 C4 N W8 R) f' X( Uset global-reputation-list (replace-item j global-reputation-list new)% t+ R# H' o$ D' t$ w- @
set j (j + 1)
% s: M+ R/ M) z% q1 x; |]% c: Q) O1 l7 e% @" a5 @
end& E* \9 ^; d8 n2 v8 I( w) c
* U- D% h% h0 W' H3 r% ?+ A0 G; Z3 q
$ E" l5 D. ]1 zto get-color
- Y5 M6 d3 |( y. l3 }: o3 f
. a4 H; A2 G" u6 V+ V) h1 M9 Pset color blue d% R- F W- u$ O, ^4 J
end v# ~# K$ o J/ Q- U/ | n
/ Z: i. H. f$ ~, }( o
to poll-class2 O2 o& |# E3 N: C( g
end
# K& Q% U+ R+ T) @7 d6 I
- ]8 x" c8 o& f, R5 x. bto setup-plot1
" e7 q# o/ M# A) X
. z3 Z% w# {2 |) j- _8 Yset-current-plot "Trends-of-Local-reputation"
g/ r W6 r1 ^* W; W2 q7 L' X
: v) K! R! P# v8 M7 T2 x! H0 Qset-plot-x-range 0 xmax
3 W r2 z4 B0 t+ j5 i) |, u6 d6 j2 M8 B5 d1 d! G! U9 `( i; V
set-plot-y-range 0.0 ymax8 ~* R8 A; B+ Z+ y9 L
end
& L4 x! e+ | K r2 h2 H
) H( Y6 k. I& l6 ~+ Oto setup-plot2
9 r. Y# [# K: L7 J
, u/ f7 R% I! t# Y9 b+ |set-current-plot "Trends-of-global-reputation"
6 X7 ]) S' v0 E# f
; ?& t9 D) m6 k7 D% Cset-plot-x-range 0 xmax
! ~& |: i) D5 l6 u" t$ R: j7 V" O0 i. p. _
set-plot-y-range 0.0 ymax
@3 e! w7 X% M+ Send
' \0 [ ]2 L# V- A3 W& H6 {1 n0 n1 W
to setup-plot3% ~' a* o% l2 z: k6 @1 @
' l9 y- i0 F8 r' J) d
set-current-plot "Trends-of-credibility"
; v+ e( ^+ \1 W: U$ e5 u* h
+ h7 g+ a, `7 `* u+ z- r( ^ rset-plot-x-range 0 xmax6 d3 |! V+ u `7 r$ c7 Q! k
5 A- n2 f) H# ~3 Dset-plot-y-range 0.0 ymax
# X4 e. X: X0 v8 o+ f! G! V9 f* ~1 p3 ?end. m$ ~4 ]+ E, j; t9 K
3 j# |2 h# Y) a, A7 m4 q5 h
to do-plots& P8 R7 k- t- ?# t" H& x# a
set-current-plot "Trends-of-Local-reputation"
1 K* ]7 b. V8 t6 uset-current-plot-pen "Honest service"
$ w7 r; D, G u' Fend
' z# {$ I# L% ~1 f' i( a% G3 G/ S. R) j2 E, n* A: W5 @
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|