|
|

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
2 X3 z" V& R. K( p& b, Zglobals[
) y" @8 {4 _8 `0 Oxmax
) }. T% @; Z$ G$ {ymax$ G w5 ~* ^5 ?$ ~% n2 s" I
global-reputation-list
/ ]- Z* A8 O( h5 U0 c
& H) K) o" A0 q) E+ K8 ?9 q( G;;每一个turtle的全局声誉都存在此LIST中
6 L, _0 [& d! i+ ncredibility-list, V* U8 W) |9 b
;;每一个turtle的评价可信度
0 K% r: T2 [) y1 \% Rhonest-service
1 O3 t6 F/ R4 ^3 }# g. Y% ^/ k3 C! t0 uunhonest-service$ U# y; m; {* ~1 c$ s' ]
oscillation( ~ v6 k5 [/ y
rand-dynamic
}- \3 G: R& r `+ J# R/ z9 R]% V# x' x' ^) W: J" Q" A
+ y5 Z4 Z* p1 e4 B9 \turtles-own[
) o& C; d$ y: ftrade-record-all
; f+ w3 o& v: V: a) @. U5 C/ K;;a list of lists,由trade-record-one组成
9 C: {+ I) m$ E1 [' U$ qtrade-record-one
# g2 ?4 u) A8 y;;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) i' u7 A) ?8 f7 f' q
% }( P& K' _' R% u
;;[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]]
$ q- K' _ f0 ~. K" rtrade-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]! ~! B9 o8 F' i$ [
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list5 f9 u- ~8 F* r/ z, M/ `5 e
neighbor-total
' {, ]0 R% _1 W8 s2 V;;记录该turtle的邻居节点的数目0 K" P' `" O- ~ F9 i
trade-time% S( I$ j+ V1 }5 a& ~' W9 ]
;;当前发生交易的turtle的交易时间
L/ V; B8 b# A: _7 Rappraise-give+ U. [6 b( v7 ] |
;;当前发生交易时给出的评价( U; _+ j/ D! s( u: n5 N, ~' P( E
appraise-receive
9 e9 F) j* i& c$ i;;当前发生交易时收到的评价. Z4 s/ H l1 K0 Q/ d
appraise-time0 ~5 [' r& U1 w- X/ _2 ~) _7 J
;;当前发生交易时的评价时间4 K @4 }: G# c4 d
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 n+ Z* i2 o- t, z/ s
trade-times-total
: a" L% g7 }( y+ a: c% H Y;;与当前turtle的交易总次数
3 J& g% i& v" z. ?trade-money-total' v) i7 j5 U1 m. g; u
;;与当前turtle的交易总金额
& h3 [6 v7 p3 A( ~local-reputation
8 b+ o. E# G( I/ b" `& }global-reputation
4 M8 x# w8 }7 k3 Z" B, lcredibility3 M9 j8 \6 g) @/ l1 r
;;评价可信度,每次交易后都需要更新
( Z( U5 @- r# fcredibility-all5 [ c z) j8 T% T
;;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
; U; J7 N+ n" L2 x3 u) ?- v' C5 `" _4 A5 t6 ?/ L: j& 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" A9 Z3 ?! `$ a6 a7 R
credibility-one) W1 j( y! W$ R6 z% y( v
;;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
" j) E% Q( ~# f4 Wglobal-proportion* U. j$ Q8 o0 b* p
customer
2 U2 X, d- \/ }/ Ocustomer-no8 T1 j7 o3 ], ? v( i. u5 S$ R1 i
trust-ok
" F) g, y7 q- s$ j$ P2 Q' M+ Ytrade-record-one-len;;trade-record-one的长度, I. M' ?6 D- u, A) s) h
]$ g1 o* J# K4 g( R8 q$ O
M. ]4 l6 a# t5 D$ ]( i+ r4 R;;setup procedure& m% B0 g: p9 X
7 r' a2 k' ]/ U' z6 ^# Pto setup- c6 K3 e+ S" h8 H" q! F( v( T
2 Y2 V2 v p0 ~6 _: Q5 s# xca" S) t3 m0 d: ^; j; g! K
% R7 k/ l( M6 U8 h3 }initialize-settings
& |* M& ?% j# J- a' m
5 Y- f9 T. ]; pcrt people [setup-turtles]
# Z- N! G+ \( M, W1 S9 U" T8 Q
" k) T5 m7 }2 m6 G2 k: C8 W7 M4 nreset-timer
9 R0 p" ~0 k$ N' H7 u. [
& X5 \& S/ `4 ^1 |/ y9 vpoll-class. O! i4 O" a, y O# F3 p
( y( z6 q. m+ v2 B* ]setup-plots2 p! ]7 s3 }! }9 }! }
% q0 z; U) d: j4 Z# m) ]- b+ d) @
do-plots
Q& }- p* l6 M2 _* [end! O5 h, j0 p6 ?1 m- o
3 D& G1 r: Z9 @* X. E) H9 j9 T
to initialize-settings6 s# G0 B) t: T1 H1 k3 j
; r6 j/ Z. A0 U3 N) j% o: ~set global-reputation-list []
& B$ G; N: O% N# ]! p- H* i& T: \3 z! h9 m
set credibility-list n-values people [0.5]
* x4 L8 i9 z; f! r* Z# K \( t, k8 w: d% h) V
set honest-service 0
8 G2 F4 O1 G* M x/ f% w) W: }
& Z$ a8 D2 p( Aset unhonest-service 0' [. q- ?' e" s
/ T/ p9 J2 z) T8 k, ^5 Fset oscillation 0% f' _! v$ d& a5 l9 n- X0 x
' U! R* p% e. G5 ]: Cset rand-dynamic 0/ _. A* b9 b6 B! }4 @
end
8 L* s% C( i: A7 J3 R' q b2 H3 S
+ a& {$ @5 q" h5 s% R+ Zto setup-turtles 4 H; r. v1 Q9 l2 w
set shape "person"
2 n0 m3 @+ Z5 S D& X dsetxy random-xcor random-ycor
, _3 Y+ q' a4 o( L& `+ {set trade-record-one []5 G9 c2 r d6 q/ }1 f0 _* ~6 b
* C) M8 T+ Q- h- B1 }
set trade-record-all n-values people [(list (? + 1) 0 0)] ' t. V- D5 Y9 K Q) K, p& Y/ q/ C
+ B( ^1 V* Q% T
set trade-record-current []9 d' S! A9 e; s
set credibility-receive []
_$ D" U. I2 ~7 Qset local-reputation 0.5
. z# R9 w8 t. y9 z4 `0 z m$ s# }set neighbor-total 09 c) Y/ D: M; o
set trade-times-total 01 }" u- f& C9 W" V
set trade-money-total 0
) l" n* J# K) f' hset customer nobody( [ L1 B" I+ _! g' U
set credibility-all n-values people [creat-credibility]
8 e) f0 J2 l6 Q" `, M( O9 i: z" Gset credibility n-values people [-1]' G) e1 j0 t5 N
get-color) w- L3 ]& v% J- S, E1 H% ?
7 l* l7 o* x4 W" V" S
end
4 P7 w" H/ L2 h/ N9 p) S7 p9 H
5 u: M5 _: b% W# i: eto-report creat-credibility
) H( X# T' \* ]6 V6 s2 preport n-values people [0.5]4 q4 \, b' @$ b, ~
end: Y/ k, n! ^$ e. r2 J3 e
5 F4 `& K# g3 j0 d! p" c+ R8 Jto setup-plots4 v9 D* u7 o, O' C2 }
$ w2 d' E4 C3 b& G
set xmax 30. N i- @6 b+ N3 A1 \
, [) ?- x$ W3 E% ^ Fset ymax 1.0 b) R/ Q$ h- @3 y2 c
% X9 z0 c0 H7 |' Zclear-all-plots- ^* B2 t, l4 Y; A5 P( M" q& q1 F
4 a0 {# s y( u0 ~) X
setup-plot13 i8 _: @6 K/ i& I4 q$ l2 J
* l5 u$ H' F7 ] \, M% N2 R
setup-plot2
/ ^' s& e4 r6 O/ y% H8 b0 j/ _0 J) Q, y7 Q7 ]! u& }
setup-plot3 g4 J) i/ c [3 a% |9 S0 N
end
$ m4 S; A8 U" `0 q9 ^9 s
; c5 j6 L" O( K6 e: r4 I;;run time procedures4 g" o/ i# y, l: o5 k- r
0 J: b& G+ u' h- S
to go
! w# K8 G4 R; N+ [; J, Q8 s3 N% e+ z$ M# {* [
ask turtles [do-business]
. ~" X! t8 U0 {6 p* h+ m* d, i5 jend
: U: K- a% @* w& B) a
|$ T: p: \' r4 Y( [( I7 E; hto do-business & d! a- H1 j+ W6 v
; k; _ f! T, x2 A: {9 D
' N. u6 A( `) Art random 360$ s# s* `# k2 V+ Z- M. i% I O
$ n4 A0 W/ ?3 L' N3 O3 z
fd 18 d k4 {' ~* y5 p
) u1 l1 ^" g) N8 Mifelse(other turtles-here != nobody)[
: x4 z0 }; }/ R7 c9 d/ b1 f3 Q& ^# H# _
set customer one-of other turtles-here+ F. r5 y" b: C8 s0 q
h" V" W a) P) t;; set [customer] of customer myself
" M$ E! \! x' m, o4 P8 U, v) F9 U6 E, c8 a# T" w# D
set [trade-record-one] of self item (([who] of customer) - 1)
* e2 J/ r0 W; L[trade-record-all]of self& V8 C& `/ V6 x* c5 C
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, d" s Q1 A" o( G/ `
" t5 D/ v( L5 u! Vset [trade-record-one] of customer item (([who] of self) - 1)
5 b! @5 w3 T- v9 h" a% L) q; C[trade-record-all]of customer
3 f; o9 V* Y: x0 y4 H
2 ^1 k, q- S* W. ^% ~set [trade-record-one-len] of self length [trade-record-one] of self9 l+ H; H* ?, P% _7 U: A5 ~' t
' X. \8 V7 ^, K2 Z* |+ ]set trade-record-current( list (timer) (random money-upper-limit))& T) E C1 T5 N5 y* b l* D
0 R$ j0 n H" S$ u9 j$ ]1 h
ask self [do-trust]3 K. D4 r; [4 I3 O% _0 z# g* o
;;先求i对j的信任度
, f3 i* F, e* R) W. `( \
9 C' X! L. D: L" m2 {if ([trust-ok] of self)6 _0 P' h" }5 P, |; r% |
;;根据i对j的信任度来决定是否与j进行交易[
- D5 G* F) s, q2 F/ G9 {ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) T# z! ]3 H9 K3 i& r' \2 T& K* M$ ]
6 T4 ?. H K9 ~( D% f/ j[
# K7 c; g- J1 S. _4 k; Q3 S$ L9 R! y; I p6 r9 Y9 o& l5 j
do-trade+ ~- e7 ^- ~5 h( R1 V
2 f% L) E- B& I, k5 r! o' p
update-credibility-ijl
( ]$ f7 K) m e3 K& U- ^. K# _6 }0 Y" B' z
update-credibility-list3 ?+ Z# r- \: U( h/ [8 r
7 z/ m$ B# _+ ]" H! Q* }, H' P; N" Z
update-global-reputation-list- r2 {( E/ z) Z. S g) }
6 z; N; x4 M# h8 D8 X; Mpoll-class% S. |& L. \- x- e8 p8 r
! u+ u/ X" V( Q. b$ q! s
get-color# v5 T' J' t: }& z7 o9 ~
9 `+ @ S2 _- t]]* p$ [2 m7 B7 F# ~
g" Q( V2 B8 k p# B
;;如果所得的信任度满足条件,则进行交易% x+ D# I# c7 n3 ^
& @' L: d" ~, e6 I[8 Z. A. M1 ^5 S- c7 W" V
`( ]. A8 {/ Q. g& F' Drt random 360! s/ W: S; @0 e, |/ m" F
4 Q4 x& S) h6 ]& t# b* Jfd 1, z# v0 Y3 B$ n" K3 L3 Y4 E
- s3 a! m+ ^1 i$ \: V
]7 X, ]& U6 i2 Z
$ x3 a ^0 p& a( Yend
$ m9 b4 ?5 K5 ^3 Y: z* d3 s4 b: \: z& w- j# F# t1 c
to do-trust 5 Y" E# q) N# U$ p
set trust-ok False
6 v$ c4 C4 Y, G* j0 N7 z3 d/ B4 V8 r5 I' O6 o
* N5 V8 a' U. O, F; o; \, e* O) llet max-trade-times 0
: n+ h! D8 @+ }# Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. [8 f& G3 K3 j+ B
let max-trade-money 0
' ~8 i$ @7 r+ C. C& Vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! Z% ~% r/ d( w! y4 ^3 Hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ w4 g/ G+ _& P$ K+ K6 A8 {: w5 t3 E8 N, B# d" ]0 W% {+ a P. G
: e0 D0 Z1 n6 ?% m) n
get-global-proportion6 q- Q: b( x5 S/ Y+ Z' f3 V. D
let trust-value9 ]1 g( z5 S* ~/ h9 t2 }2 J, I+ S# N
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)3 V) `" c( n; k
if(trust-value > trade-trust-value)# g0 Y) u9 `$ q$ Z% ~5 @
[set trust-ok true]
4 \) } |3 B ?5 yend/ ]' e* s. D* d
/ ]6 g; z% [' H' {7 m/ Cto get-global-proportion
, `% k) p( b! w; T1 k5 yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 E5 }& t2 [' b3 z; Y9 i; ?" g; S
[set global-proportion 0]7 z" f& y' F; q6 Q7 _
[let i 0
# L a! v( ^; ]% x, |let sum-money 0
% w, C# B# u% W2 v& C* Iwhile[ i < people]4 ^: `# e7 u2 }
[
- c! c- M# C+ n+ R6 E8 ?+ g3 x1 Jif( length (item i2 P9 k5 L; z4 ~4 q0 b2 {$ O
[trade-record-all] of customer) > 3 )
% ^3 p7 j" x% X+ a[5 I9 F! e; [9 r$ C+ m! b2 r- E
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) E0 t+ R4 `" `8 A6 q; s2 e
]
; c( o. y7 n) @]
7 x( \% F$ K" l$ `0 I4 a* ^, `) ]let j 0
$ e9 Y; d0 ?% k2 `: P3 K. alet note 0' F6 X) d9 ~ S0 Q6 d' G
while[ j < people]+ u+ R# E6 s$ d5 m' w5 M
[
$ X9 x6 o5 }8 Z7 J0 cif( length (item i; s. J8 E% k: D; A) L
[trade-record-all] of customer) > 3 )
( e. F& ]" `& W9 O3 w' h& k5 r* ]" s[
3 ]! y1 I w: w* g* Z) _ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* i, y. o0 X) Z) s: G
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& |* i/ m, V' |. D
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* h- e* k# S$ A]
- I4 z) u X7 a, G; N" K]
& o' f' A- W; Tset global-proportion note/ Q& ]% D, f. o: f+ ]
]* B' G# ^5 n/ _& n9 E9 _
end8 n# F6 X4 w6 O1 d. z
5 u' E- L Y* B/ t; u+ K
to do-trade
: I& u+ h/ @# L* e9 k4 p0 a/ G;;这个过程实际上是给双方作出评价的过程! @+ W, V x; b o# K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' }0 G3 D8 y9 U. ]+ `
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( H/ N$ p/ {) p* gset trade-record-current lput(timer) trade-record-current+ }1 ]: L/ W- A. n
;;评价时间! O" w4 ]1 Z- d! V
ask myself [
0 h0 k4 c- `; H2 yupdate-local-reputation& w7 E5 K" f Y! T
set trade-record-current lput([local-reputation] of myself) trade-record-current
7 x: O9 o+ f0 `) f2 |, F# W. N]
! |+ p3 \0 Z* C/ m: y; zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself I$ L( Q( V1 }; O
;;将此次交易的记录加入到trade-record-one中
7 G: c3 |$ C" Xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! f1 G. X2 X! ~2 x+ ?! ?# @( J" a6 l
let note (item 2 trade-record-current )
j. e* w9 G8 hset trade-record-current5 q$ L4 U, J9 D
(replace-item 2 trade-record-current (item 3 trade-record-current))) r/ ]' e! `4 H7 t* ?1 I
set trade-record-current" C* a" `6 X/ o# C3 M4 _# v
(replace-item 3 trade-record-current note)# F' @1 z/ Z$ \5 v1 w9 Z7 P. j
/ z- |& Y& h1 i" G' b
" E. c/ [" @3 y7 D: j$ M; ~) w, gask customer [
0 q+ E d' q( i- b; _8 Lupdate-local-reputation$ Z* G2 @# c1 @7 d. ?, K3 V
set trade-record-current
8 p9 p9 H, Z6 ^0 ?7 x, J(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - e. D; s7 |9 V) {
]
& V0 C4 T$ d! y; ^, i
# P* m7 ~: G1 t" o- l3 M* X, X6 n* m& ~/ }1 d
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: d$ b/ x0 T9 y+ h% P- [) D8 S/ J0 {, }* {& U
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), Z& V$ @0 h+ I) L1 m
;;将此次交易的记录加入到customer的trade-record-all中# j L. N$ i) f5 Q! m7 a/ R
end$ Q# i! R! H/ x6 p( P
8 [6 U0 F2 [ qto update-local-reputation9 K% t( H9 v( {1 G- j6 @# m) A5 p
set [trade-record-one-len] of myself length [trade-record-one] of myself9 y$ }7 V* c2 F$ l
& Z! ?1 A9 O. L/ \2 n+ y
: d3 U9 D# t7 h;;if [trade-record-one-len] of myself > 3 * h/ k3 B+ ^" o4 u! W
update-neighbor-total
! T, ^3 f: C9 ^# n;;更新邻居节点的数目,在此进行/ O- j1 @8 v# r% s/ u
let i 3
* l) d' ]( r [5 X8 f0 nlet sum-time 0
& l. i. J( ^2 F. Iwhile[i < [trade-record-one-len] of myself]
8 E: H, z4 F# V[
7 I$ d5 q, x2 [' F$ pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 A: F7 M; v) F4 G4 {$ }
set i
1 `! J: j2 i3 B; _: O z' S! p( i + 1)
% g7 {' x, P, }2 f]+ {1 `& H4 q2 i8 B2 w5 p
let j 36 y3 ^7 D( S( p, x, A7 W7 x+ a
let sum-money 0
% N& T! \# \$ r! X4 s, y. T' Y5 H/ cwhile[j < [trade-record-one-len] of myself]
& A5 F# O4 ?. D# j) y[7 V: E( @: G. s6 \, 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)
# E; J% T/ w; U5 I' P$ f0 h* g# Yset j) V# C( u- |8 P
( j + 1)$ X3 U' Q( L! c% h, {" ^% ?5 w1 N
]
- m& B) ` w% {+ C, Mlet k 3. B% u! d& d1 h1 e' F
let power 0
6 o; R; h: [/ Klet local 00 u1 F# Z k6 ?* m. {6 @& L
while [k <[trade-record-one-len] of myself]
, @$ [: M# w: `& p0 @2 |3 V& m% b[
% q& G0 W) b# v) d# Y% f1 b K8 v/ q0 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)
; B/ f- f# ^, R7 |set k (k + 1)
5 z3 N5 j& j& p# l2 D! ?# C]) M/ ?" L8 R8 J8 H# [6 [
set [local-reputation] of myself (local)
. O0 N* V% m/ c# O P' I {8 l# Iend* T& B& t5 M& m2 V- j1 R
1 M: j! q5 |5 V( R5 L, ato update-neighbor-total
% m: }+ e, {# f. I3 T& A# w* W2 h2 Y7 n) F9 l5 w, \( M0 X) ]7 w
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- r4 N4 a" W: F' D8 m* o& x9 N
; @* N5 Q2 g0 R) G* y5 k6 l/ i. t* I1 O9 B: `' g8 j
end
Q) ]1 I" D2 H5 p; y/ s
4 f: ?6 E# G7 j" b# |' H6 oto update-credibility-ijl
% N1 U, c; c9 z) _
5 x0 c6 T- j" D;;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。5 f$ d2 K, Z9 J( T, `% e
let l 0
& R; Q6 j, F& u5 J7 kwhile[ l < people ]
) s' ?/ D6 y! b) n; Z" x: u9 Q6 U9 J;;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
( Z& C% N2 `& b: v! d[
6 N6 m: o/ {8 t! m) {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 d* ?& Q5 d; r% q$ `
if (trade-record-one-j-l-len > 3)
" e8 h+ j W3 I0 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# k! k, t4 ~& l L0 o" u" S
let i 3/ v- C( S! o) ]6 ^0 |$ Z
let sum-time 0) w3 ~, H7 I7 I; y4 }# _9 C7 {% a
while[i < trade-record-one-len], F8 q5 Z# _' w7 U
[
3 {0 A0 H% y6 r9 w7 |set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 W0 U+ P4 ^" k7 N: k: [* N
set i
! z- M6 p% r, \3 Y( i + 1)
, H- r9 c; v8 j5 D b" q]- q _- n. R4 b0 _0 E0 W
let credibility-i-j-l 0: W) u/ H9 X) b( |1 v" b
;;i评价(j对jl的评价)
( p7 p3 C, R. a {& y! U8 tlet j 3: k k- d' P. v; l5 F8 ?; u
let k 4( l- N3 R; B' I# H/ k1 a! [
while[j < trade-record-one-len]! V. H$ R- n- m0 a, f; v6 G
[
. `2 U; l8 v: Q# _- Lwhile [((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' {4 R) Y9 V z0 f% I. P
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)# | \/ R: i; ]$ g, s% ~% ]7 J1 ]
set j
$ J# A8 j6 O3 b% l& h( j + 1)3 m V- R$ A/ a$ l& u2 P/ c
]# _& H; |+ m2 \7 c# T3 t. X. }
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 )). G3 u2 T) X- {' z- b O
3 D/ [+ O) l' F7 `! V6 j3 l O% V' K9 |+ b0 F; j6 j
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& S- w# B- G z/ |;;及时更新i对l的评价质量的评价
3 Q& h9 N! y' z( L, _( q" yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# s- M" x% X& v4 x9 S7 p+ P0 {: Qset l (l + 1)8 }5 t8 j4 s9 @" {+ F6 M+ w8 \
]
! Z/ p; p2 @$ r, iend8 O! ^% y! y, P0 p
3 c7 x6 t/ l0 n
to update-credibility-list
# T# l, c. n3 `2 K7 [5 o4 T- Rlet i 0/ }2 ]+ V" c) U! @
while[i < people]
4 Y% D7 R; |: Y& n, p; H' S6 Y. s[
) ^* Z6 }3 c- {) t. T1 Y$ _let j 0! P5 I4 x/ D7 q& l7 g
let note 0& m/ w/ x5 T, L; h- l
let k 0
! C. ~' ^( B: p1 b;;计作出过评价的邻居节点的数目
1 {* z8 r* m+ `; ewhile[j < people]
: K7 b3 _3 T3 f5 z! a( c! u3 g[- R5 s+ N! k2 j9 L! Z4 y/ X
if (item j( [credibility] of turtle (i + 1)) != -1)
/ `0 O+ _: p8 i' j+ {: y0 b: x;;判断是否给本turtle的评价质量做出过评价的节点
, O1 }4 M" | V6 d[set note (note + item j ([credibility]of turtle (i + 1)))
+ l9 x% q9 C* H1 A. E/ ?;;*(exp (-(people - 2)))/(people - 2))]
e" a8 N! r. {! [! Iset k (k + 1)8 r* g% B- j' S' B5 J1 `0 b) o
]
% L N3 E& S. @% o# |8 I5 t9 Sset j (j + 1)& Y0 D) u9 Z# F* h
]
' O: B, O) e. O. i1 G% [8 ?! \set note (note *(exp (- (1 / k)))/ k)# q0 `- b4 K3 g7 i9 t( t. T
set credibility-list (replace-item i credibility-list note)2 C# G4 v7 `" a- e8 k, u3 B- o" ~9 V9 M
set i (i + 1); Q5 R0 Z* s* X* M1 K2 X
]
% O+ F& I# M/ m0 ^end3 K7 P" k! n; W9 F8 U
+ n" F( f4 \, N. U
to update-global-reputation-list
8 ^( v. \' }0 k5 v1 E* k0 o, ]let j 05 M! \1 e& e# O0 Q3 S- F
while[j < people]
5 n, W7 T& c8 A& e8 O: G7 X[
! f- i- M$ u3 ~0 j, y5 K% nlet new 06 @; b& U* r2 H8 O) _) Y
;;暂存新的一个全局声誉
, ?# W z F& a. U# U8 alet i 0
& U7 G5 \( O4 b; T7 X* c6 z: Q& blet sum-money 0* _6 o5 ?3 n# P$ a3 C
let credibility-money 0
1 [ L! L( C, u, ^" o0 Iwhile [i < people]
/ [: H* z1 m% T7 Y" t[
: k4 h5 I, Z2 X# W% [" z2 qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
3 U( p6 p! A8 m- sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); a( e0 l! E4 M. h& N+ l! j' D
set i (i + 1)
, B `( `; b* A) ^9 u7 J2 L]
Z5 [4 A8 f6 ^# m/ i# N; qlet k 0
8 n. ~; i; x3 p7 J- k1 R2 x+ U6 dlet new1 05 u, s. i4 a i
while [k < people]+ ~% J2 N5 h8 R* X7 w0 q
[: s- x) A/ ?8 F4 f6 T
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)
! [: @4 c0 y9 }7 M* `set k (k + 1)
$ ?2 j; _1 G8 M. F+ ~( A* h]4 Z$ x7 V% ?- }# T3 `, W
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( k7 C+ E( D' w; Y; uset global-reputation-list (replace-item j global-reputation-list new)
4 g' F2 k* @8 X) U! ?+ n: lset j (j + 1)
( A7 B" y3 @& p! t, ^8 R]: v% z4 ]6 T8 U1 i
end& S4 C/ i( o$ `1 @3 s
, y0 G) u# h G9 H/ V
& {( t; f9 |( W+ ?: E9 }
0 \9 F) K. j5 @6 i2 z5 G
to get-color, f* O8 g4 W0 d
. S& l: a5 D c. b
set color blue0 ^; d, x$ i9 S% j" p
end0 q1 l6 r+ j' g
- \/ y! d5 t) B
to poll-class
3 u$ y g" e% e# B( kend
; G* M: I* p. ^) p! [: _4 H0 I. x/ T# h& @3 l4 T- A4 Z; P) ]/ [# e
to setup-plot1' @/ J: c; Y+ C. [ ?* \, @
* D1 T, U4 x* o$ ]( P9 t U7 {6 @4 eset-current-plot "Trends-of-Local-reputation"
; p3 |0 h5 ^, v0 C4 T; k& M# C/ t. a, A8 e9 y; \4 {
set-plot-x-range 0 xmax
# R* x" l* _0 @' r& D( M3 Q8 y& R
, d! R) r0 V# D4 t7 V+ t {: Kset-plot-y-range 0.0 ymax
/ O' Q# v+ ?& O1 f0 mend+ e5 x- h0 B( N$ N1 x
x, r( B6 I$ x' p; A' h
to setup-plot2& u, i4 p! \" e$ Y0 ]) H: c8 ?9 ~/ F
& l. c4 m7 \& V5 ^
set-current-plot "Trends-of-global-reputation"
; Y( U a) V. U7 m$ t" b- ]- n( A; }
set-plot-x-range 0 xmax
, p- v9 ` j. X+ h3 G! p/ b8 j/ o* o8 }; P7 N! N
set-plot-y-range 0.0 ymax
. C, g3 x1 ~* S# L% ~. J+ H# \end; v: C) b8 Z$ G9 V& j5 `5 T' x1 |: g
/ B1 N I/ [) B \% O {to setup-plot36 b2 e8 |$ x/ W# x# q# H
" k7 r) P6 U6 m
set-current-plot "Trends-of-credibility"/ p. j" W/ H B
( v# x/ R9 |1 `- c! @4 \set-plot-x-range 0 xmax
# ^" D1 ^+ d1 o: N- S: H+ {7 F6 ? q7 ]! @; x% O- g
set-plot-y-range 0.0 ymax0 }8 ]5 p0 p/ c7 h* Q8 i9 S
end
5 a# z6 ?. Z! l3 n" l% j6 h" }- ` \+ s! K( d7 z9 V' w: o1 Q! z
to do-plots
* |0 K- N0 v/ n8 z* o0 Bset-current-plot "Trends-of-Local-reputation"3 M/ M! O3 s( ~0 F. H8 z7 U. a
set-current-plot-pen "Honest service" F% ?2 ^0 v1 Y5 b3 g4 }3 j" h8 ?
end
/ @1 a) h5 t! u. Z+ P
- q2 U6 ]# t2 m' }[ 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
|