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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
Y7 O# q7 @1 cglobals[
4 X$ q2 G/ {' q3 [* W) zxmax
0 r; S. p( {+ |* s: ^; a. d) T ~ymax' t3 F; P+ s! m
global-reputation-list) c2 G' L1 U3 d" _
) ]$ Q" N( I/ q& E) i8 z# ]
;;每一个turtle的全局声誉都存在此LIST中( `+ J5 M: O" y, }/ t
credibility-list3 x, k9 Z- O/ S
;;每一个turtle的评价可信度* n3 K, c/ b0 B$ u: V& G- J: X
honest-service4 ]1 C$ u5 H. m% E/ n8 g& t+ K; V
unhonest-service/ k0 E/ [# b1 o0 K! B# {) C
oscillation/ F- E9 i) l; t' n9 A
rand-dynamic4 n1 D8 A/ m& P7 C2 W1 q5 B
]
7 N+ p: O6 U( F2 P& |3 h3 S, n- C& P
turtles-own[' E- [0 n: y/ D( r; z3 l
trade-record-all
4 e/ Y; H6 o" L' V6 S3 n3 X# };;a list of lists,由trade-record-one组成
2 p; d; j: H+ E1 E4 ^$ Qtrade-record-one; b& M& ?; |. y+ }* T2 g
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录" v4 D, b# E0 p- C3 T1 g. n0 c
2 T4 o7 p; @' g) o* i! M; W' v
;;[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]]& a& w& q; w. r3 \& _
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]+ h) [8 T) K0 o: J; ]+ t
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
3 `8 b- O8 ]6 B: P& F- o, [neighbor-total& z6 ~6 s( m! |% c Z
;;记录该turtle的邻居节点的数目) ]& l0 \' T7 b* Q: [5 D
trade-time
2 s- g) { \2 k: M! Z;;当前发生交易的turtle的交易时间) Z6 s, X( h4 i" a3 ]8 W" E6 V. p
appraise-give, a, f8 I5 I# Q5 ^' S6 Y) S
;;当前发生交易时给出的评价 U$ |0 i4 B& {" D i, Z+ V
appraise-receive
) t' {- w& v* W; x4 H$ g7 s' V- F;;当前发生交易时收到的评价
2 |8 u t* L/ uappraise-time
' h" [$ Y9 Z" |;;当前发生交易时的评价时间
9 f% _3 r8 e+ u$ Z! p8 qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉. M" N" b' Z, e, s# m" Z
trade-times-total
" v s j* G+ n1 T' r( u;;与当前turtle的交易总次数
! S$ d. G! o4 |% h W: q/ R" {trade-money-total
6 m( Q2 |' L! j5 K: m0 l" a5 f; N `;;与当前turtle的交易总金额
- f8 ]# S/ F6 G. h; u' wlocal-reputation
) Z0 D* S& P$ M' }$ X5 n4 j- a& U5 S" Hglobal-reputation0 J+ n# J/ m3 A" d0 o0 ?, Q
credibility" \) o. g2 q: C. H: p; z' s
;;评价可信度,每次交易后都需要更新) N" u5 `! x- f) a
credibility-all
, o- J& T* R2 K! e& e;;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0 K+ _4 X- o. }1 F3 P2 U
) y/ J; W! o4 V# 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
) u# i8 l& U6 j& `4 ucredibility-one
+ V1 z2 D0 h$ L& Q& H- d5 i. W;;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
- k1 `+ ?" h: m) i& m: Vglobal-proportion- U- \1 _" R6 O$ u0 M2 U0 n
customer3 o- U; l3 v$ ]5 u3 J3 m/ N' }! b! }
customer-no
+ e" Q% Q1 ]5 _9 g6 X* Otrust-ok
: K h9 y f; n% Ktrade-record-one-len;;trade-record-one的长度
8 b/ H" Z7 ]& v! H* P6 ^& b]. R% ~& W$ ?" P9 y- {9 R! L
: M$ z$ v( }0 ^0 E: g
;;setup procedure, g, F. M, n1 V' z! }5 f# p8 T
/ r( U& i2 u# ]# Q5 `9 _
to setup
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; Q5 e: E% e; B6 i, W) O3 Jca
0 ^7 F( B: a5 U# F
0 {7 r* m4 A! g% O2 zinitialize-settings- I0 a& j G; c' t' `' k9 Q' ]: s
( R D/ u! \5 s( ?# a
crt people [setup-turtles]8 N. A' v g; f! D5 ~
( X+ C: H/ P) L* a/ B
reset-timer
" x0 F1 ]/ u- S7 @: i% u+ n
! w M) O, F d8 G2 a! lpoll-class- h$ O9 o" B1 w
& T" o1 E3 p B3 w9 vsetup-plots* B' z7 B$ H2 R4 @+ a' p$ r
" }; I `9 I) ?6 V
do-plots3 P. X5 ~) s. k3 M4 x% _
end
5 |7 P2 R% E# B. n; C% J, I5 Q3 f6 j4 S$ H- {
to initialize-settings
% Y% V. j2 B$ ^- [0 }
$ i1 L& J+ s- M; oset global-reputation-list []
X% w6 F* s& b v9 j0 O& Q
+ m( t' j# i% I: c$ x8 ], yset credibility-list n-values people [0.5]4 {! u; h* \3 B- n" F
, |9 b' E% F) w3 hset honest-service 0* N2 Q* T2 \$ `$ O4 Z0 P+ f
8 y; ?* g1 W5 |0 hset unhonest-service 04 z8 v' X$ u7 w( }
5 A3 H1 S( H, h' K+ Z* N2 {; \
set oscillation 07 V5 ]7 {% i0 R/ V
7 e0 l7 E0 ?9 a! x6 Y3 A
set rand-dynamic 05 r+ s% }; _/ x" U6 a& x( Z
end+ |& _ O1 p p$ P
! l- w' y# R8 ~2 r2 _( |to setup-turtles
5 q* [. H0 A9 e# T4 a5 O" [8 Cset shape "person"
3 q" N3 Y2 f5 O7 zsetxy random-xcor random-ycor) K! [4 K; I5 ~' C% m& H
set trade-record-one []
/ }; ^- u+ Q: a0 i1 X" R
: |5 d5 U7 L+ _# hset trade-record-all n-values people [(list (? + 1) 0 0)]
2 v# d4 Y q3 J# A0 G* C7 b7 x0 w7 u/ K7 B4 U
set trade-record-current []
$ l* Z1 U E8 y% `' M& uset credibility-receive [] n# e, h U* {6 ~, P
set local-reputation 0.5
0 H* s# Q. y) [/ x) R7 h- lset neighbor-total 0
& W0 G) r0 f3 F3 d6 ^9 Pset trade-times-total 0
! y4 U; R) \2 d1 `set trade-money-total 0
# M7 b' E4 Z! q- }set customer nobody" Q0 C, k3 x* S) `8 o2 L( i
set credibility-all n-values people [creat-credibility]' C8 N, C+ `7 |% t* f6 r9 b0 y) O
set credibility n-values people [-1]5 a: |. _1 E6 l! \0 b* I, F+ w' O, H
get-color
% {2 c- j6 i+ H
5 I3 F. v4 j7 Z9 E' n. r+ D* Rend* B. Q/ R8 Y; h6 D
$ y! l) D, W0 L5 xto-report creat-credibility" T. c/ `/ u! X% j! g
report n-values people [0.5]5 x; Q$ F, j0 A7 }2 O3 v/ z: g7 F' C
end5 m5 Q2 o/ T$ N' w- W2 }& h
5 c2 g& H) z1 f6 @: ~- ?3 R
to setup-plots) w- k! S4 ?9 z, A
. f4 m/ \; f2 t# v6 y+ Zset xmax 30
7 u) u- [& m8 Z6 c: e* }
; b* ?& w4 V( U& X; {% K( pset ymax 1.0
& H4 C. u3 U: Q- Z. d
7 s ~# M) ]7 N: s1 N W* F& oclear-all-plots
2 a+ q4 ]- Z8 o" j
" G/ i/ M* t) i! Tsetup-plot1
8 y! D# [% s0 V: n" y6 K% |- x9 b/ L' h/ p9 N+ y# Z' R
setup-plot2
) L2 o6 d' G7 q( I6 c9 y1 v1 h
( l" z8 \ z* W* [3 A9 [setup-plot3
. e- S; l" M, i& h3 ?: Tend1 ~4 n7 u5 P' m/ a$ ]
. x, x3 N1 U( r: F& Q
;;run time procedures
& c8 N+ k1 K% _: x4 s& v" `/ ]- r0 x% ?: S; p! c' ?& G( E
to go! F. ~" e# {3 z) x/ l# T3 s( G
% I; u. _6 b6 l; o& q; S0 C: Yask turtles [do-business]: c4 u$ i s- O
end5 u3 z% K' D2 J' v6 R% C7 [
/ U8 ^* O) U+ O& J
to do-business 2 ]6 D7 s' L) g& Y, w
! e1 o0 n* ?5 q) I" L/ [
3 ?% _% i' j: s: krt random 360
m1 y q7 M: q$ j" a! Q% e: { i. g( X& ]# A8 h9 R8 h2 @% u
fd 1
8 Q" a/ |! G8 D& }8 r J
0 G) [. B* f9 M B/ G. gifelse(other turtles-here != nobody)[
z+ X G$ v- K2 j% V
; g: ^7 t- m$ S( aset customer one-of other turtles-here
% ?+ ~0 p( O( o+ i+ j
# t, Z( T" t5 _ v" B;; set [customer] of customer myself
' f. r6 o: [& Z- F+ U( | [: {* [! ]" l% _' _# S
set [trade-record-one] of self item (([who] of customer) - 1)) }0 K" S, ?! M6 w1 @( M
[trade-record-all]of self
1 u- x4 Z. U' P;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ s' M/ r; G$ B
U8 C/ x6 h3 f# mset [trade-record-one] of customer item (([who] of self) - 1)# m, |: n) ^% _' G. n) J2 m2 ^' u. m; a
[trade-record-all]of customer
9 I6 x% M0 r5 t$ H+ x6 T0 _8 v$ {
, y% B8 R/ H! }2 pset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
* q- M# d T' y9 l. e6 C1 q' t3 y5 d) X
ask self [do-trust]
9 V# b4 E s$ f% |9 V$ S;;先求i对j的信任度
$ \+ I8 Y# u4 D3 ?4 P3 G) H0 G
& R* A) V3 h1 o$ a# rif ([trust-ok] of self)' g; j/ r! N) [3 w3 L. O( ]- \
;;根据i对j的信任度来决定是否与j进行交易[( x2 _$ b7 k8 l' a8 Y3 g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! H- K q* N6 S, o
; Q8 Y. v) F9 \8 Y$ w# t8 L[
, e: y; Y% R( S4 c: d) S' j4 Z
do-trade' d" }* }! }" {% R. g
+ n" a6 ^: l; s
update-credibility-ijl
s% b2 t( `! X# G5 V
4 q3 p) b/ `3 k! x$ J5 v4 Bupdate-credibility-list
$ Z: R# h) n3 s9 T& |$ j/ r/ `. w4 Z2 b8 \% I# a2 V$ k4 C
% l) q( |; Q( D! I8 k* Mupdate-global-reputation-list$ X* q: k8 W, ]( H
, S* {6 o4 T+ T
poll-class) e' n o( U. L0 K
# P V* i+ R1 X; ~& V4 X
get-color* ], N: B" R' [
2 n; O) M$ W5 y9 ~% H% y. e
]]( z$ E' ?( _$ w& G( ]
" {& L) D5 y) y. T% Y; a
;;如果所得的信任度满足条件,则进行交易
* s: t+ X" a" h6 Y, H; p; O
- O' {# |4 Q' v% u[
3 r7 {* ~, R5 b. x& B: _7 ]1 L* t4 {9 D5 J
rt random 3604 @) @! g# I$ c" I- I
( X! ?0 F# y3 b$ O; |
fd 1
3 U, Q1 w5 s* F" S; ]7 K4 D
N M/ A. s: P9 t8 v], j# P7 R l- C; O4 E% Y+ @7 {0 W
' {5 j$ f0 F0 X0 j% u/ l% R
end
4 {& r& U V0 {# b+ K- W8 d. h* S. T) R$ c0 p6 s
to do-trust
% ?6 \1 j9 r$ e5 s9 I" A: ~9 `& rset trust-ok False' O. o- K; E% I, U8 r! L
; r. K/ h! ~) e
- c: |; E: v7 W6 Tlet max-trade-times 06 S% [; K6 R6 t& T
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: o# g+ @/ O w
let max-trade-money 0
* V( P" [5 Z1 e" ?2 H2 [foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' o' F/ l3 _% t' L$ Tlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, d: ]! c0 ]. |' I( R# d2 [
/ O$ q; S2 |9 _+ k8 f: P+ U7 _/ n/ x& ~: f
get-global-proportion2 \" U5 M4 O s, \0 V% o
let trust-value3 b6 H0 J, e3 C; R% W' |
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 D$ E4 p) P2 S5 }8 V$ Lif(trust-value > trade-trust-value)" N6 D2 f9 A# E8 B$ f
[set trust-ok true]
) w: m; d! c0 j2 m" P$ Xend l- W+ Y% @+ ? ^7 @* |
. d& } f; Y0 u( ?to get-global-proportion
- j, k' T5 l! P* j, G9 m- ^& |( oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ f$ r9 H6 X s& |5 M: j4 I[set global-proportion 0]$ e* T+ y& J/ z; `
[let i 0
! s! ]' W$ B& e5 p4 b- f( g2 rlet sum-money 0& `2 J6 r6 j2 H" _! b9 v
while[ i < people]
' E/ h$ ?& P) `[& h9 z9 M L' ], ~) V. M- Z
if( length (item i8 l4 o+ N$ w3 A6 a2 g
[trade-record-all] of customer) > 3 )
3 y4 m, U3 h1 i/ m# d" \! f[
+ _- t* I7 R$ j; {$ J: pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))3 D7 q' I3 s/ S6 ^
]
: j8 X. F5 d/ Z# g4 S]
: Y" {5 O/ y4 O4 G3 U- N+ v) T# llet j 0
# ]* y% {/ A" H0 O7 E" w2 w$ {let note 0( \1 v) f6 F: h0 m! A* g# A
while[ j < people]7 |% k, q# o F" K
[
$ V7 A& L& e$ g( q' Yif( length (item i
: M0 J' L# \9 E[trade-record-all] of customer) > 3 )
) I) P4 g) Y4 p[
1 B% R9 w" a# \) o* d/ i" Z! xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( m* @& }' M- C/ @- Y$ q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ ?5 ~3 o" j) j' j- F3 N) }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. u7 \+ x. Q! {7 d o0 w$ C]. x+ t' ~4 [: H$ m4 ^
]5 v/ O, ^! ]6 A
set global-proportion note
3 h3 V2 k9 [" D" J]. j) Z8 ^; O9 a/ w G5 S
end
$ h5 z2 L v' b, i! A- L# C6 f1 c2 g6 D6 L3 H# k) G) D
to do-trade* t Q( o$ | Y( V5 j4 O! t0 H X3 u2 x
;;这个过程实际上是给双方作出评价的过程. a( x! `7 h9 F j( d+ B3 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& b7 x) O' q4 c t' V( Y& y- t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 j, k! q, M+ v3 o2 Iset trade-record-current lput(timer) trade-record-current
- B4 n, F s7 y/ P;;评价时间
# X: t8 T% ?4 ]* ?ask myself [7 J [( r: g/ h
update-local-reputation2 n$ H$ w/ Q- U; d
set trade-record-current lput([local-reputation] of myself) trade-record-current
: g- B/ E2 |0 C" Z]) \& P& ? X& F! A4 V8 c
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 l4 m1 r0 X9 _% V& ~: m9 K;;将此次交易的记录加入到trade-record-one中
# x, r" L- q9 U6 i. z; k! \1 fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 E( _- \9 _; ]* M
let note (item 2 trade-record-current )
5 k; R% Y# S! D5 o3 E# r# oset trade-record-current( L N1 Y! H. L9 c
(replace-item 2 trade-record-current (item 3 trade-record-current))
|; h0 s6 L1 _# L' y8 o" ?7 c0 L: [set trade-record-current
+ ^$ L- n9 z0 K1 o- H/ V6 k: T(replace-item 3 trade-record-current note)
/ _/ [# d0 K% e) K# @3 i9 \5 ~0 w; ^# h; V8 f `9 h
( z x+ G5 T7 K& ]9 i0 q- v, Z4 Q& ^ask customer [ \; m1 L4 U2 e/ v" x
update-local-reputation" J5 v8 u6 o! Q2 m1 v" j
set trade-record-current
- T, m. L2 C2 g! X: g0 N! A6 |(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& Z* b0 S) k) ]) \6 X- H5 q! C1 T]
0 R3 I* x3 R5 o/ \
* @, T; V2 p) H! Z+ d9 x1 U V% z! t: Y3 }+ f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% O* @" z: u7 T4 I! \) `
9 [4 ?# V8 Z# H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) B* A2 u+ C6 Z. Q! H9 Q2 J
;;将此次交易的记录加入到customer的trade-record-all中
, W. J$ H; h1 i+ x1 `end
4 U3 W. ^: K! {; m
& P0 I! r# w: ^. H% U( F2 Tto update-local-reputation
3 t. S- o; l6 r4 @ [set [trade-record-one-len] of myself length [trade-record-one] of myself
9 M$ q1 E- E v
0 [* ^; V5 W% S5 \( M$ p% f1 _$ a9 C" @: ?+ j- j# v( g+ y! }
;;if [trade-record-one-len] of myself > 3 9 b; s M* u( n3 Z& `. H: i
update-neighbor-total# A& W* r' B* E ?3 U$ X
;;更新邻居节点的数目,在此进行
0 l4 Y; h5 A: @; L: ~let i 3
) E& a3 Y3 J e f& t) |, a+ f3 { D* Ilet sum-time 0
; q2 s5 y* k* U- Q' n5 p/ ]while[i < [trade-record-one-len] of myself]
1 f) k' h, \; t( c% u( V[5 C! u+ U' m1 E( [6 h# v6 V3 T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 \( a5 J5 l/ w; `8 ~% s
set i
6 Y* r, f0 _7 N) I1 U( [; i1 a( i + 1)
# T- N4 L* r$ W]# [0 p2 D+ V0 c/ g3 W1 D t1 P
let j 3/ Z; t3 k! l" {- j
let sum-money 0
* B$ M! c& ^+ Y6 N! `while[j < [trade-record-one-len] of myself]& ^( l5 @; V) B1 X
[; i" t/ [0 R V- `7 o. Y
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)
0 Z4 h1 X9 E: c6 b1 i7 i) r' b1 \; xset j
7 A9 c7 |# S% x$ I' {1 @( j + 1)
3 L e+ t7 }% u]
0 j5 ^: l4 g: H: flet k 36 U5 Y, ~8 U! w
let power 09 C4 z& i8 J# J, k2 N9 r* H% L' m
let local 0
a% x7 }, R& g6 [) g+ Z6 L' y, J- Pwhile [k <[trade-record-one-len] of myself], m X$ T% b: ]' J$ N/ @( w; @
[
% M% |( f/ b* G8 A3 pset 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+ z& `, v% V$ A$ u6 P d$ y
set k (k + 1)# s/ r- K; y' t) o4 ?
]
" j/ f6 A4 _. V Z. xset [local-reputation] of myself (local)2 _) R9 z4 k* a4 h: @/ p. T
end
3 g) K1 j6 r7 o Z
6 R4 C x7 W0 z* Z0 H# [to update-neighbor-total3 v; p% Z- d. \
. b; t! m/ t9 w* bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 I8 J7 t* K$ u$ ]# {# R6 b% B, [0 i/ G$ ]: a4 P' J
6 x! a, x" E( X1 h. q( I4 X
end( V# U; G! ?% b1 \( I+ |: T% b
3 n6 v( K, _% q3 b+ _- `
to update-credibility-ijl # E9 v# s; _' s- u. X
8 |& f2 ^6 X, Y3 q5 Q* v# U2 y8 x
;;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。
) l; S* q0 R! h. W9 `/ x" l8 J# Ulet l 0
- @5 T5 y. p( uwhile[ l < people ]
! `7 M) B6 C% c" W3 D;;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" [6 n3 u' i+ t5 P5 D7 A7 I. H
[
7 s' k c2 `: L$ Q& s2 qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 |1 w2 E/ I+ `
if (trade-record-one-j-l-len > 3)
; N$ E; i2 h q$ F# t0 M5 o[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+ `- Q1 `' c% J0 h1 i
let i 37 t8 \5 c! ?, \- K6 E( z8 |4 g
let sum-time 0
/ b6 e0 M4 k: F* ~8 y& _; L7 O `while[i < trade-record-one-len]
3 {6 X- J5 [2 ?# i7 v: n[
' C" i& ^, K& P. p# a1 Q' Qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) V4 \' J [# q7 u: `" R; }# M
set i
( x1 r! _4 o. @4 [; r3 f( i + 1)4 p; F2 a" p* ]/ O. T5 O7 J [
]" f8 |, E* u/ R5 ?5 p2 M9 \
let credibility-i-j-l 0+ X- E8 |' b& p! L2 q' t% {0 o5 z
;;i评价(j对jl的评价)
$ U4 L d# T: ?5 Z; M, U: f5 {let j 3
* s* ] u$ E: Q6 xlet k 4$ w. R/ B* h, F# l9 Q: C0 Z- J" I
while[j < trade-record-one-len]( Z- V c& Z) t9 T. Y# e+ @6 i
[
0 g6 t( \( j. w p) Z6 ^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
8 z$ ?0 ~2 H3 u6 Z8 \# k" H4 T5 yset 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)5 M) ]$ k7 ]% ]# Y: H9 \$ S
set j: M! u& ^# g/ I
( j + 1)4 f, d6 X; D* [" b
]
2 X/ I# t: B8 ?5 t' t5 `6 v Eset [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 ))+ i8 v& ^' }8 z3 k" A1 _7 E
. L0 B" p; I8 w( V
9 N" Z% z) M) D* t6 w9 l0 Y# _) Alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% ^& z6 W d( N+ P, @# d& I
;;及时更新i对l的评价质量的评价 C) s( F" N4 F# c% A6 U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 z6 P4 _. X0 ]- u$ @7 |- t0 oset l (l + 1)1 Y7 e7 w6 ?, N0 S
]
/ @+ i' X3 l- @ Vend
8 y/ S; v6 X" {3 }1 i, J# n. W: e% \# @. q' d4 i1 [
to update-credibility-list
; F8 c% |+ L3 J" d; plet i 0
, q( F L5 q0 a& Zwhile[i < people]
# n J9 p8 e( Z+ S+ O* R[
# h* k" s2 `/ `2 k3 b& rlet j 08 }4 |% }4 f W$ e }! F9 e
let note 0
, q% ^' G8 j5 ~; Elet k 0. X$ D' }+ U: L# i7 u4 F4 U
;;计作出过评价的邻居节点的数目3 p& | @; s$ s( O3 M
while[j < people]. S3 s6 Y& `3 c+ T& l
[
% U' W# h/ Z7 p* z: p! G/ N, @if (item j( [credibility] of turtle (i + 1)) != -1)$ C. X% Q( o/ W R. I
;;判断是否给本turtle的评价质量做出过评价的节点2 t; P7 M- l, M( c" O* T
[set note (note + item j ([credibility]of turtle (i + 1)))9 o4 P" W: e$ w8 |5 W
;;*(exp (-(people - 2)))/(people - 2))]0 w4 P0 |' L, F
set k (k + 1)8 D; S1 n) a" m0 q
]
2 [- E3 N9 s; E; Vset j (j + 1)1 R* @" g% a* X& I( x E1 }& U
]
! [' p& }( K' W" \' F4 H( ?set note (note *(exp (- (1 / k)))/ k)
7 r0 C# [, h! g; L0 b6 iset credibility-list (replace-item i credibility-list note)
! t4 y( T8 W q4 B# V* Hset i (i + 1)
: }' p+ D" g8 g' o]
* _! [* ~! I; |& x4 rend) Z+ R& t- ` w4 F
0 x. |" |! `! C
to update-global-reputation-list
+ d1 |7 H& L" ]+ A6 ?1 }let j 0. N G N. T# l
while[j < people]; |' _8 }2 ]+ ]( p
[0 a- b/ c% `' U. D, T# ^
let new 0
7 Z/ N3 Y1 z6 V$ f/ N3 r3 D$ m- M;;暂存新的一个全局声誉
4 A! f% K% ?8 V; _, E4 Tlet i 0; t! A" Y& n* O8 o) b1 a0 [; k! d
let sum-money 0* c/ b- S! F1 x' e8 }2 O
let credibility-money 0
. k7 `1 P% W; X/ P( cwhile [i < people]) k3 e+ d8 N4 h$ b
[
% K' o+ @; M2 v9 ?% Qset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ g% w* z7 Q( M6 f* T$ X& |set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
: s( F7 z! a$ @5 Bset i (i + 1)
& F0 i6 J" j( O9 Z]# e+ o6 F0 n3 \. h: A8 Q5 V
let k 02 g+ O+ ?, O, c! P: r7 i
let new1 0
) x) }8 R& U9 n- Twhile [k < people]+ q* U7 m0 ^1 |" `" O6 x6 u
[
* s0 X( c) \1 U1 V! ]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)' e6 h* V i& x3 s# h3 i
set k (k + 1) U6 ?; E; B j. {; ?& W
]
% b, e! y$ U& {" A) Y% m2 [set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 x6 {# ]1 G0 J* i1 E7 F% R3 uset global-reputation-list (replace-item j global-reputation-list new)" W( y3 i" ?7 w# N Y3 k7 t, b
set j (j + 1), Y5 R) p% g' I# d
]
$ s% O) N/ G! pend4 S- T* U. ~, o* u/ q6 f
4 s2 E. P9 m W5 C
7 T$ J0 S: m$ B) F4 U$ F' N* G5 F6 [& ^5 J# l2 s
to get-color5 V* a$ Z) b D
( ]) r' c4 W" ~4 [# Y( P( P
set color blue& U1 ?. R% k2 Q3 G( A7 `& q
end
( ^) _! K; }$ b& L2 u3 t" K! e3 S8 ^: X8 j; N7 A3 T! a( U
to poll-class
1 i- V5 B. R, a. Xend
8 h$ t3 s! S4 b
3 w/ S9 a* k/ {0 ]3 V m3 o; n( Ato setup-plot1
4 Y7 M- w( b- N7 D! B# e
' s0 e$ k1 U7 }& b( K' n! Rset-current-plot "Trends-of-Local-reputation"
7 W& l/ R% d* A8 f! ~; `) S6 k- [
) S* K% b& i6 ?! R9 }: r% ]; ?/ z6 xset-plot-x-range 0 xmax) F" @! q+ { h. y( m( o8 X" S
" C; u9 B1 q8 b
set-plot-y-range 0.0 ymax
8 t" c8 [6 G+ G9 d S4 h, Zend+ v( A. d4 I- w$ s, x
3 t; J! p. @& H ]; z2 Z h6 o
to setup-plot2
# K7 E* s" @7 s0 [: v- b) ?6 L% [8 Y, q/ |: y; I+ ]2 t
set-current-plot "Trends-of-global-reputation"% p; o6 B9 f# ^
$ X. `; \! b& E% h9 F. Z& H3 Jset-plot-x-range 0 xmax( s% m0 k. M" s: z( J
( }8 q9 z- h6 ]+ \1 Q9 p( O
set-plot-y-range 0.0 ymax# k2 }% @. e$ O7 G1 X# L
end
# \$ L& o) A; d+ I5 m% ^ W- o* R" T* S8 L: M
to setup-plot3
# x* f7 T. H6 o6 i3 H
3 l% F) i4 n5 D" F+ i1 W, wset-current-plot "Trends-of-credibility"
% u; _( \6 d! U$ J; t ?4 b
0 P" |2 }7 r' _/ S( C$ i" n$ h& U$ N5 K# a% _set-plot-x-range 0 xmax
* _% J* C+ E$ _1 S3 ^8 h' p6 h& ^0 h( W
set-plot-y-range 0.0 ymax
6 c' V1 l d. q0 m6 eend+ y, y+ T: u6 t$ @
( _: c5 B, O4 d& ^/ x4 S
to do-plots
% k7 C/ w: `: M" F- r8 h4 L, \set-current-plot "Trends-of-Local-reputation"# s1 R, W+ z( D# N/ }0 ]
set-current-plot-pen "Honest service"
9 c4 F, T" T$ W. _end
1 e" k8 H A( c% T& y, r b
; N0 l* x; |& k# {) N8 K[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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