|
|

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
$ d+ q3 w& }" ~. Q! J Nglobals[& S* J( n8 F6 p' F' a, ]/ d
xmax
% d/ D' i+ N* c5 Aymax
9 Z, c/ t, Q: U A0 S! Y: vglobal-reputation-list9 L, {% ?& ?2 E- G7 c) Z5 \' O
/ z& q/ U& d/ A8 R" A% w- V% D;;每一个turtle的全局声誉都存在此LIST中3 t, I: G, T/ Z
credibility-list$ V* D6 Z l$ n9 A
;;每一个turtle的评价可信度
+ }, u' v, e+ ?" ~; m7 Q$ Rhonest-service) F& p, Y& x8 x$ b
unhonest-service% t) k& w) p* Q4 J
oscillation0 r: g* `, z6 I9 C6 U# m
rand-dynamic
4 ^/ O C0 E. B4 x]
) V2 {9 I" [7 w8 l& J- J1 P( B o, h; d
turtles-own[
% H# m/ P8 n, x, L9 O n7 |trade-record-all
7 n% ~7 [( i. i, S0 P% a8 p7 |;;a list of lists,由trade-record-one组成
1 U; f" @5 U0 M5 t& R" g/ Dtrade-record-one
3 |) h, x$ S/ |0 [;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, D) r$ e: a$ s1 t7 K" k6 t5 b
) E9 E" c/ e0 ^& g;;[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]]! C0 p; c: e$ }4 x" R
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]
$ o/ [- j5 {: Z( _ ?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
7 R2 F4 m2 c8 U$ d( u4 f1 ?8 p1 _, I. w5 Rneighbor-total* y$ T/ ]* z. t& R R
;;记录该turtle的邻居节点的数目
: O ?4 c% S* ?4 _6 J- A$ Qtrade-time
2 P5 d" [; k- e" b. @% f: b# x;;当前发生交易的turtle的交易时间
+ J( W; g( r- d7 \1 \6 ` ]appraise-give
9 n$ T6 O6 e& G;;当前发生交易时给出的评价
$ i6 v6 }3 ]5 I6 K, tappraise-receive
1 m) G% B3 K+ H% V' Z% o8 s;;当前发生交易时收到的评价
# c6 _4 P! o' ]1 H! `( wappraise-time
4 O/ B# X1 N' }! P8 J;;当前发生交易时的评价时间1 f5 K T# j( D! K2 k, ~: s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) x2 S3 o* ?; q8 O5 r3 qtrade-times-total
4 i' w" C) c6 L7 P3 y;;与当前turtle的交易总次数! ^, d4 c" t5 F6 P
trade-money-total
. J% C1 f: H, o) G/ \- d( };;与当前turtle的交易总金额$ O$ x" B7 ]; t' U6 h' N$ n
local-reputation
3 c5 j$ _' q0 o$ ~2 r9 `global-reputation9 Q& D1 r! d6 d$ V. I
credibility
9 h1 i8 r8 G, J# ], y. u& i;;评价可信度,每次交易后都需要更新
1 l( m: U+ S) b9 T7 ]credibility-all
' J1 y: v1 p \2 P6 @;;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* t- h: F3 a: N9 p5 B4 @% H% y6 o7 w# f
; ?& N6 H6 f+ m" e% U4 a# [
;;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
* [; i3 J4 G t7 |; Z5 k2 jcredibility-one
% V. |; V( P4 G( m$ J2 V) B! 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
# F1 C$ G5 Z4 ?4 j( W7 Hglobal-proportion& e: j& ~8 G" t4 v" x' _
customer( C9 ?& T0 ?" D4 W/ L( {6 t8 N! U1 S
customer-no% h+ O: o$ {% |' S) C
trust-ok% X& g8 S" {$ }$ J3 n# N: Q! k
trade-record-one-len;;trade-record-one的长度
8 o" w, Q6 w+ z4 n$ P) b]
; p! D, A; h6 V, g! Z
, q+ _# m6 @9 N/ E2 G;;setup procedure
2 ]" a# G# o- O- w& \$ y- I4 h( j) ]
to setup
) a# x% v+ _! D
' B9 g W8 x2 k. H, Tca( W4 \# p* z, q" S
4 w! y' }/ b; s- W( X7 n
initialize-settings. L* |" i4 G) l( Z9 Z
4 H& M- w6 Q: |" L$ e0 @2 h
crt people [setup-turtles]
0 m/ t/ a8 ]. Q7 I4 h$ D7 y4 u' B" o$ q" g/ c/ J C% o+ K
reset-timer, N1 S5 w f/ q! Q+ {& s
) [( Q0 R: O" E
poll-class; S$ Q2 {5 R. N. R! A% B
: i: W- [6 G0 j |% `* F' _1 r3 i& Y
setup-plots. Y% N, b7 `6 E4 S0 n
1 u! Q' y) \" X* S) b2 @* n( Ado-plots+ y) D1 R4 f- j% q1 N' E; U
end; k3 u* P# {$ W5 T. `, V3 c4 j
6 D" {# p* ]. f4 \# E1 |to initialize-settings( _# @* A6 N+ J7 t
- ^- Q* l8 |; Z2 A( e5 U8 y
set global-reputation-list []( J) }1 ^" S! M7 N9 d/ v( K: P
' ?# r3 |1 C3 J# c3 L7 rset credibility-list n-values people [0.5]
) e" ~6 `/ y, ?' m1 `2 i! R
5 x# L) z3 N- Oset honest-service 0- r% J' m, |$ x' P) A
5 O$ i7 F1 e0 Z5 B+ f
set unhonest-service 0
3 h# q! v. V$ c% U8 o) P7 E" [5 B( @; Z6 r6 Y
set oscillation 09 E" K6 i2 i8 T/ v" M. i
* \2 I% D8 I! a5 H" l
set rand-dynamic 0
; e" ]$ g: ~7 m- K# B& ]" rend% u% X2 [ k$ N
4 O7 v, V2 f& A2 v) D
to setup-turtles % U- u- y+ |! L- M4 m
set shape "person"# Y" |1 D6 z" {- X( q
setxy random-xcor random-ycor
" T: E8 `# n0 @set trade-record-one []
o# U9 |7 E1 C. o& J4 ^7 E( C- S) ]# j( d! ~- e
set trade-record-all n-values people [(list (? + 1) 0 0)]
8 U0 n+ f0 i: j
2 Y1 i4 ]; B: n; T; p3 {; R" i( Oset trade-record-current []0 h0 y- m' t; i* d0 _! `/ n
set credibility-receive []- G5 o1 {$ P$ V, X5 Y5 y
set local-reputation 0.5( {7 y' N3 L3 @1 M; C4 B( G W
set neighbor-total 0
9 {5 ~( [8 }4 A2 }/ w [set trade-times-total 0$ B. V! D: b/ |! s! K
set trade-money-total 0" Z# d; N3 k- b
set customer nobody
4 H& J( Y7 ]- i p$ s/ |' Tset credibility-all n-values people [creat-credibility]
* n0 e! `8 W2 G. l3 k# M" oset credibility n-values people [-1]
1 r$ D P" f4 Z$ U, Kget-color4 i) W6 j ?6 p2 ]9 Y" Y# G' ]
/ `0 W' i# A+ K
end; ?* s# L$ ]9 L9 l7 |3 k
7 L% b/ q3 h% Q( Z: t+ v7 x5 ]
to-report creat-credibility# j. c/ t) t1 n1 r/ ]1 O
report n-values people [0.5]
4 v) W- g! U' z8 J1 r7 Y3 Gend
: M6 d% ^2 O- @2 d$ H2 [+ i' L# i X2 q: P6 w7 t7 {
to setup-plots9 o! G* [5 D. V. b* Z( a. J
8 g4 ^& A1 i6 B7 o5 e+ Y4 l. D! N# U, Oset xmax 30
, i- E) ?5 w# e& e, [- L/ }( Q( x- ^: l" s% d7 I4 A
set ymax 1.0) E4 n. _$ E! I t9 W/ V
" e: `( D. m/ n2 q5 |. L3 j, ~clear-all-plots
: a" q. r2 F- x6 R0 Z. H$ z- ]0 l# P3 u {. `2 a0 S
setup-plot1! }/ z* F! l9 u, k; w$ I
1 D }* I( Q# [+ @setup-plot2
! R5 E1 w; k+ b& D6 j: H
! d2 R# X0 F# csetup-plot3( L& k$ ^# Y6 ]! {8 Z
end
: V& ], h& e. g7 E
2 k& |; M; G9 q. j% H. p# };;run time procedures" r3 y! ]6 E$ U2 R& u
( E8 ]1 \. c4 L: p& j+ {to go3 z8 g0 r3 j( @# }$ w+ q
2 h) ?% [2 Z" n- iask turtles [do-business]
+ j V0 ]4 L7 Oend0 }3 a) k# W5 n" C
+ A2 U0 C* A( R- o" w# R+ Pto do-business 6 j- R9 R/ N- y8 B. }8 S$ V
9 g2 S9 ~$ p0 { C- e( v+ e
4 b. [2 W$ i, Z s! X$ ort random 3601 f4 ~6 J5 `) i' U
1 `# M) }' V. ]4 V% d7 {" k8 j
fd 1
5 {6 n9 ]2 @8 z/ q# Z7 N/ w/ e r4 }' x* Y) O! z" Y& Q/ |2 o
ifelse(other turtles-here != nobody)[! r% w0 k+ d) u1 g" e
& q. t( |. Y# Q& Y1 K7 R8 fset customer one-of other turtles-here+ U+ j$ Y1 m" P( \7 X5 ]
; a) q2 h9 o g R2 E;; set [customer] of customer myself
' H; @+ o; N" Z
' s3 b0 Y$ p% C" J1 sset [trade-record-one] of self item (([who] of customer) - 1)+ h- |; H. }: `. {
[trade-record-all]of self2 ]* ]1 h% g. [) q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ V( \5 I' W, s5 M9 A. t( f! w
- B7 m0 v g8 d- ~7 x) cset [trade-record-one] of customer item (([who] of self) - 1)
# |2 l6 U5 t1 J[trade-record-all]of customer ^. i3 L; N$ n- C- f
' ~7 c7 S1 p u: B7 y! R6 a& fset [trade-record-one-len] of self length [trade-record-one] of self
6 T N" {1 g& H0 J5 m. j% ^8 t/ B6 b9 h
7 O7 e* H4 M4 m. E) eset trade-record-current( list (timer) (random money-upper-limit))
1 E: T' I& h% ~& U# O# [( ?
/ J4 C3 X; _7 W9 j0 T" Cask self [do-trust]; V! K/ `" H0 a$ s
;;先求i对j的信任度
' P L) E2 c$ G* J2 S
4 U1 n* w; _9 x* {. N: |if ([trust-ok] of self)- A! |1 S" R3 Q
;;根据i对j的信任度来决定是否与j进行交易[
/ G" k0 d$ }0 K3 m. zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; t! L6 g/ R! T1 u
* J# ~6 B2 E& s' F' i$ b, _7 d
[
% K( s! V8 Y* `2 O+ |6 g1 N \ V! K# J: c/ L0 F7 c; X0 I
do-trade
" W# y: [, {) p1 w3 ?
6 Y- T; Y4 u5 }& H4 hupdate-credibility-ijl
& J5 a( a( p6 r( F, Q2 N% Z% M) A& y. U* Q2 N a4 K; m
update-credibility-list- O. H, h7 p# c& c6 n
9 l- U) [) m) S( W8 J
7 B/ O6 K2 o" N7 supdate-global-reputation-list
+ s, o; C- ]4 n9 V. X7 p1 k$ k, V. e8 B6 `) Q/ U( H1 P) v9 ~
poll-class
# a* y3 n8 k" M% }
; B8 n h7 M# o0 ?get-color/ q- V4 J: J, M9 u( M6 H
( W K/ @$ J0 M8 g6 N. N
]]5 _6 w* U1 g- @# e9 E5 r
/ r4 E+ s) Y% I" [
;;如果所得的信任度满足条件,则进行交易9 d+ ]( q8 k; e' o5 u, Y/ \
. _4 S5 z; f6 w! }7 f1 J[
8 [2 _, d X$ J/ D2 G; @% W4 ~# d- P& ?, L1 v! C
rt random 360
0 v5 m; n& _1 c. {( ]- Y# l5 `+ Y d
fd 1& c+ Q+ U+ g4 A$ L8 N9 _& L0 X
- B7 Z* w1 Z$ ~0 J- G" _- S' f( r
]- d) m: A0 L- K$ y5 E
5 k0 U6 e. S. y& a6 kend" t( @1 P8 _" ?2 p4 b
9 ]; S+ X5 m0 E" }# S4 p, O- e( \
to do-trust
# P6 c) M y( a( @$ A% Sset trust-ok False
6 K. \1 H6 m4 h1 C
: q2 N4 W0 C; T' L4 v. |4 C5 B& ]" E/ F/ R
let max-trade-times 0
. x5 U5 ?6 F7 W$ [2 z: m b% Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 O8 U" J2 l4 R1 n+ }& d8 S2 t' Zlet max-trade-money 0
* x* w5 ]" C {0 i4 F& s7 _foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% P+ a* a& v+ I- [: B' p
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
9 Q* Z4 [1 v8 k+ A7 Z. n7 ]
5 ?. ~& o# L5 D9 C' J# R0 t, ~
8 z$ ~/ ?! b& R' u3 K$ zget-global-proportion/ [8 D0 b) a0 l) i8 u, ~
let trust-value
' {7 I" k; ?! f; elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
. v3 p! V) r( ~if(trust-value > trade-trust-value)
2 G! {+ S. Q, `[set trust-ok true]
* D A9 r% j1 L! o, x+ wend
7 G+ G1 R: `* a$ C5 x
- V% s' K7 \! G9 Hto get-global-proportion6 \( y) a9 {! b- d9 ?1 c$ N0 r6 Y7 ?
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). E) ^9 l' o) b- A) f$ L& H
[set global-proportion 0]
0 N$ H5 t' n1 H0 r. Z8 m' M( W0 [[let i 0) T- z7 o. V5 I6 D m+ w6 T6 s& M
let sum-money 0, {/ I( Y5 b1 b& j4 M' x
while[ i < people]3 n0 h3 O1 k3 M+ h' S5 n6 \
[- M2 r; h/ k' d, G
if( length (item i F4 o4 V" I& ?0 D+ L
[trade-record-all] of customer) > 3 )
7 k* Z3 q' h: v" J6 S- n- s w[7 H% q5 b, f8 y* W; O) G5 o/ L" o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" g. q& |4 u, c a+ I$ k]& }" U; E5 P; P8 B- v
]3 e! z3 I, X/ l
let j 09 w8 m' X7 G% L5 A7 W7 e
let note 0 p- {4 v. t S* t; H( ^- w7 [. x
while[ j < people]
# m7 f' i. ]) m0 s5 z[* \6 P, J) r+ K' p; |
if( length (item i4 W3 N* M* J9 ^/ M, R' z& S* D
[trade-record-all] of customer) > 3 )
( i I# l; A9 V& V2 x[
; W/ f, z, s% s) k% G1 mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 {- c/ @$ U. [" F. i0 D6 p+ U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" q& I" C0 L" c4 |$ f1 K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" e. d* J# x- q1 O& V' o]/ a2 R$ F+ x, |8 J7 k7 J- q0 W
]
7 c7 m; Q) x5 v8 mset global-proportion note' E8 v7 l1 `9 d( A3 p
] G; @" s& U( q$ Q
end
8 t- X. b0 |$ o w6 _ V u% n$ S6 F9 K& @7 d1 Z. l4 u6 y5 X# C
to do-trade
1 J/ Z! V! A! E; O, x+ @6 };;这个过程实际上是给双方作出评价的过程
0 i6 e% B: ?0 v! q5 fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) p, E3 r. q6 s/ vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. x; R _; r: E/ b/ |/ ?+ f
set trade-record-current lput(timer) trade-record-current# u% I! G" w& t* q2 _
;;评价时间
0 o6 b1 G. Z( c e5 I0 {ask myself [( w& z& A, B2 T
update-local-reputation
! p9 R8 ~) F+ C- S3 X, ?) nset trade-record-current lput([local-reputation] of myself) trade-record-current
& ^' U" g$ K" B& ^0 d]
& ]: W/ l% P: ?2 g3 h* `; I- v# Fset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" u, ^8 c7 ], h& Z# I
;;将此次交易的记录加入到trade-record-one中 [; [, c5 L3 p) }+ h3 H
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 B( m4 H" s: y* @) |5 Alet note (item 2 trade-record-current )$ \7 `7 u# h4 w
set trade-record-current; H8 E/ O! M1 {" ^
(replace-item 2 trade-record-current (item 3 trade-record-current))( A3 l, r& f6 a/ X
set trade-record-current
( ?" k4 ^& b& ]3 k(replace-item 3 trade-record-current note)4 z7 S# j% ^& t9 v8 K$ J
# H6 f/ [2 R9 x7 W$ y
9 J' L8 @9 e+ b, |ask customer [' i. \! h J( b" d( B
update-local-reputation; r: A( E$ Y+ T' |, e( d
set trade-record-current2 M1 }' y) o2 n) b1 A" {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - y4 n2 E+ M6 c4 b% k
]
) ^* K- _' Z& i7 r. T- ]/ D+ }
4 k/ _$ H! ]: x+ M
$ Z( l2 t. x. O5 ^& Y. Aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 V h- S+ ?7 m& d/ L" V
; N+ N9 t" k# u) G! n7 U
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' N- r5 E$ d" O O" g- W
;;将此次交易的记录加入到customer的trade-record-all中
$ f1 w: d' s. e0 Jend
2 R$ z# R" j+ Q: I7 c- O; v% f+ g/ G: `( b' a/ m8 o
to update-local-reputation e9 j" q$ G: {! _( ]9 |0 i
set [trade-record-one-len] of myself length [trade-record-one] of myself- F" k( p( t7 A
9 V- H1 j) `* }$ [1 n' R
' J3 v7 f) _# R8 Z
;;if [trade-record-one-len] of myself > 3 / G- z7 o9 h) B- Y, F
update-neighbor-total
+ q A+ M5 U% ?- Z ^7 l) a;;更新邻居节点的数目,在此进行
. L- F+ g) R5 k7 F4 K, _, B4 i6 U) t* plet i 3! |4 d* o$ @6 q+ w" P1 _- `
let sum-time 0
" w/ p, w% J0 g. L8 }) H9 Lwhile[i < [trade-record-one-len] of myself]5 o4 T2 j2 P0 D3 v7 t, r* X
[
5 f9 G9 v5 h6 n2 zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) w% E+ o; v$ w
set i
1 }5 \% f+ q+ d& F& C& @% Z( i + 1)
: M( n5 A$ b L/ I3 G$ t]' y, ]# Q* u& V
let j 30 f. N! H9 |+ i a- O/ Z: Q% \- c
let sum-money 0
/ p9 W- F5 g: _while[j < [trade-record-one-len] of myself]
: j2 _ E* g x* Z0 b[# u) B" a7 c& S
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)# z/ c2 L A3 P6 Z
set j
( \( V: l0 C1 ?; }9 @2 k! b( j + 1)
2 e' X5 p- L6 a6 n4 V]$ X2 O* k+ g @* }4 Z/ N1 z
let k 3/ P/ n! Q+ Z& j; ~5 C2 S
let power 0$ u) O" |& x2 [9 @' D+ J
let local 0
G* d% b/ g. _while [k <[trade-record-one-len] of myself]
& i: ^3 u* C1 e \. l& N1 t8 E* m[
& J% S# R3 y" h) y/ ?/ t( u0 ?( Eset 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) Q" M# M. y) r4 B9 Y6 f; X
set k (k + 1)
- o% K+ a1 J# S ?' R% e]
4 Y0 `" B. i: I3 z8 Kset [local-reputation] of myself (local)7 e" }( T5 ]' {9 p/ l
end
" y; A. I1 ^$ k
" ]4 W! |* p% rto update-neighbor-total
3 U, h' h4 }/ o8 u$ o& P
4 d3 n! J* t4 s6 |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ b/ p2 `; { D8 `/ J8 x$ W0 V1 z' t" B8 K* x5 q
1 ?, Y7 \* z4 H c: Q. ~
end- w( P4 L% t" Q& q- k
4 m" {' v3 T' a9 M
to update-credibility-ijl
7 I9 b4 z$ |/ c: p- k L$ a# |2 M% L
( y6 ]: H5 E7 C;;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 o; D/ Q9 P! X3 Y f, hlet l 0
+ l3 }3 q* `* g4 b- S4 O( ], B! Iwhile[ l < people ]; G( W/ ^0 e D! b0 t6 V
;;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* H/ Z. r/ _" M! g" g3 m
[) p. g# }, T/ ~, \8 j+ R* U
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): d l$ X9 E( k9 M
if (trade-record-one-j-l-len > 3)! ? Z( ~2 @7 i: V# G6 B$ v5 v
[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
! G8 k9 Z1 [2 J; |, K( ulet i 38 S) E9 ?; |2 T$ L2 y( v4 h5 Q
let sum-time 0' S8 a6 @& S" \3 x5 O. o
while[i < trade-record-one-len]7 k( ^7 L/ B( I3 j( u0 y
[
) K( ]; t" |6 R+ \9 N5 _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- @8 s1 d# U1 f9 n4 _2 j! Nset i
* \" l# L/ V5 z4 d) w5 l/ S/ r$ l" N. b( i + 1)
5 D7 z1 @6 s1 }, \/ S]
. e+ W$ b, l* blet credibility-i-j-l 0) e* v6 L8 v* w% e0 c1 h
;;i评价(j对jl的评价)
, _! O2 C# i9 _- t: @8 g0 |let j 3* S" c0 I3 [& l1 h# k! ~
let k 4% V+ Q' D! ]/ h9 V z: D, g0 {( R
while[j < trade-record-one-len]
& Y% x$ K3 L: O/ G[
. C9 }- R( J5 Mwhile [((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
6 I# M* }# U* g% c! G5 m# tset 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)
& q8 e# r# w7 ]: z- Xset j
+ Z- z$ b3 Z2 s( j + 1)! b. G$ |- ]" S9 X
]
4 p3 T6 [- B( n9 X2 yset [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 )). K" B0 e9 |3 X/ ~* p
_3 O7 K# g' T+ I. v6 l G" R% G# T4 j0 {* R
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). X8 R; W; ?( }+ O/ s
;;及时更新i对l的评价质量的评价
4 T: D7 y+ c3 O; Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 B5 @8 g( @& ]/ r# H+ rset l (l + 1)% B, L* k; e# D7 p6 B0 g0 Q
]
( y, W5 a* S9 S8 qend+ e; P: l" Z' X ?! t
$ y& Z& `6 x9 S6 L/ bto update-credibility-list
, a6 |! T8 J0 X o; alet i 04 j2 U2 c2 \& J% V# y
while[i < people]
/ k; D; P) L+ [1 c3 d: ~) M[" d- A6 C# X% G1 S7 T' h8 Y. n
let j 09 a/ u. C X2 Q- ~ K
let note 0
4 ~( O' z2 p- ~" Flet k 04 g% \: ~8 t, w- E1 m9 M/ l# k
;;计作出过评价的邻居节点的数目
% `) I4 ]+ h, {- l- O5 ^4 Wwhile[j < people]
+ q8 i' c. o' @[
5 m4 m5 n1 }4 I& [if (item j( [credibility] of turtle (i + 1)) != -1)
/ I; I, j( E9 L! Q, ^/ b;;判断是否给本turtle的评价质量做出过评价的节点" e, g. J9 g: F) e7 X/ I7 ^- A9 ^
[set note (note + item j ([credibility]of turtle (i + 1)))5 D* J4 v2 [/ w4 `7 x
;;*(exp (-(people - 2)))/(people - 2))]
4 { h" Q# V5 X. y' C+ E$ ]' Eset k (k + 1)1 g1 ^/ r+ H% [# ~; s2 K
]+ E5 @1 `: z0 V2 T) a; r( t& p- t
set j (j + 1)8 A0 Y. c! j8 o, `3 K
]0 q8 v+ Q) o; p; V2 {- w6 z0 `
set note (note *(exp (- (1 / k)))/ k)
4 b. L5 ^3 b; x# b! Hset credibility-list (replace-item i credibility-list note)
0 \4 R+ j2 b8 iset i (i + 1)
4 O4 \$ r0 }. L]4 m, o5 ~3 P9 H6 C$ q! `
end
6 j2 S$ B& y7 a0 @4 p/ i- S! u! E
to update-global-reputation-list
: z7 |, M2 O& H- K9 xlet j 05 @" W$ Q* D6 z* I
while[j < people]
" R$ j6 y/ s( ]- h; T+ o. ~6 U0 M# q[
9 `9 a* K$ ^- N! Hlet new 02 V+ \" y& f3 z6 u# h0 l6 ?
;;暂存新的一个全局声誉. w: i9 c. M$ l, }2 A
let i 0$ i4 R0 ^$ j3 o: T3 r1 b5 `) G- c
let sum-money 01 C# e7 ~ k, s- A, g
let credibility-money 0
5 v8 \) T# u' l! o2 y( hwhile [i < people]9 _8 v7 j4 t8 o s
[6 J6 e# G+ ]" C) G# ?2 `( p
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" k2 } h" l6 E9 Q) Z2 bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ E: i: M+ ~+ Wset i (i + 1)
0 [1 |8 B7 g2 _]$ U3 V% N& d0 ~2 a) S; f
let k 07 K% `. f0 B$ T& a) U0 I
let new1 0) `& x, w" g3 e A |" ]5 D8 v+ e9 u! n
while [k < people]
& T5 O% L( O! h8 M% C3 V/ l! ~[
* R5 |6 Z! _# w5 t( Z/ eset 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)( t' `! U$ z: {
set k (k + 1)
0 L6 C3 Y4 f. a/ u* j- r# h]
, J" B* I( t4 P& F" u: y' B! |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( F) r* k0 r1 \: h9 G! \set global-reputation-list (replace-item j global-reputation-list new)5 r) H+ w6 O9 m& I
set j (j + 1)4 i% s/ A0 j$ j- A+ O2 e( M7 n: I$ g
]
6 }: N+ O+ E$ ^0 Pend$ Y4 P/ x y+ \" t. Z
/ y( @3 a9 Q& {1 d9 H
# U$ W/ M. T4 \4 j7 X
3 E* H1 N$ s, _# y! J" V! lto get-color
( J! F, L/ |$ d. D* U
3 q1 ~5 O8 e9 y: n# tset color blue
! ]# T d2 r/ N8 r& O3 h# z' rend6 F; B8 @" Z: h+ H4 A& ~
, g4 i e4 u6 }8 \& q5 @( k
to poll-class8 B! Y) X5 h; B4 k
end# A9 j! o/ c1 ?. D: S4 W9 V
4 C! Q; ~$ a9 n) C: [' b5 P3 }- Cto setup-plot1& Y8 P- X& L1 _; H, }/ H. E: ~
3 b1 L, R% j+ L1 t/ E! X
set-current-plot "Trends-of-Local-reputation"
; _6 x1 h% m/ A" d: F. T$ \9 T2 V" B
" ]! W, t! z" N, c' Q1 P$ qset-plot-x-range 0 xmax
! l3 B6 s- k/ v8 I+ o1 \9 r# Y, y2 }! @# h/ J6 n O+ Z
set-plot-y-range 0.0 ymax/ E; f8 J3 ^! S& y3 x
end2 q* I7 n* @: N/ k" T$ g7 w- |
( b8 L6 c: U/ X. @4 H
to setup-plot2
{5 B- X5 S" k# ^
& H0 @ e* S1 W& _9 p9 s8 Cset-current-plot "Trends-of-global-reputation"
! h4 N. Q; x- P! ?2 f9 D/ G7 |# p5 i
set-plot-x-range 0 xmax; G. g: |5 L ]2 R
* L6 g7 L) m) }1 ? ]9 eset-plot-y-range 0.0 ymax( _) J8 Z% ^* K0 Y% D
end% X$ N, n' R2 _ A U! i, Z
: g% P" O% o6 ^/ n: _& o" J0 V
to setup-plot3
/ P* I" B S! A! r2 j, V' |& |5 G6 g
set-current-plot "Trends-of-credibility"
- f$ }: ]0 Y8 X/ Z* ~2 a
- ` Z+ t* P2 E, f0 G1 b, uset-plot-x-range 0 xmax& j. g0 g% a* t9 ^( z& ^' Y
8 i* {. Y) ?% j8 n
set-plot-y-range 0.0 ymax
) Q: x) t7 w$ \& s" Aend& ^9 j( E/ E3 \2 i% W3 M5 X
4 e% C' [6 e ]* y7 }to do-plots2 f6 p% Q6 P8 s2 n: e
set-current-plot "Trends-of-Local-reputation" y. L& q0 X8 w
set-current-plot-pen "Honest service"
) k }) O' q1 M& ?/ Pend4 e" g' _* G5 U4 E
- d, m: j9 r' X( l6 Y# ?$ Y7 M( {+ l
[ 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
|