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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0 a, r: r7 u' @; ^; D
globals[. A& [ x% l* L; r0 C3 }
xmax
7 m. h' Y Z; s1 T+ v8 Uymax
2 O# `4 X: p8 l" F9 P6 ^( bglobal-reputation-list
2 F; D- n# K* }$ i8 l S( u7 f/ t+ F5 x5 t' X& N( G2 J4 y
;;每一个turtle的全局声誉都存在此LIST中3 _( u$ s( s3 T7 p6 S
credibility-list
; Y0 a% S+ M3 H* s;;每一个turtle的评价可信度
# E) d3 h* v. @+ fhonest-service4 b5 O0 T% U9 [1 L. }# q
unhonest-service
" K. s( l$ K' }7 R- @5 h$ toscillation& L5 f/ L3 B: B
rand-dynamic
" G% J( Y1 h& q]
+ Y" ~9 E# e4 i' S$ L
0 C: E; Z: v }" d' s" Vturtles-own[. @% a q) |! P( F
trade-record-all" J2 o& l. J. h. |- c7 c
;;a list of lists,由trade-record-one组成
- i. ]' o: m7 ntrade-record-one% U0 ^. C# R" V2 O& l* `
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ k* d; `# r- V K I2 A
# p- I% g. t. F 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]]
/ B/ V2 R7 T* N: o! V3 O: A1 @0 btrade-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]2 r. D& X Z' p$ a j, 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list4 Y$ d$ P: ^" @0 } L
neighbor-total
% G0 `7 C# {+ j( P: z& p+ ^1 y;;记录该turtle的邻居节点的数目/ X- ?- ~% g# M, c9 q1 I4 t
trade-time
' J9 V) [4 a3 @- S+ [2 M. J;;当前发生交易的turtle的交易时间
3 u# ?! G/ e- v. D0 h; }8 bappraise-give+ M* M2 c( [- A. c( s; w9 j7 }2 y
;;当前发生交易时给出的评价
9 f7 r: Q: ~4 o# Z4 @* Uappraise-receive
" h! m G h' a/ y; \& Y! L;;当前发生交易时收到的评价" Y$ r' E$ Z# t" c1 ? @
appraise-time9 ^8 W4 X1 P; T. u
;;当前发生交易时的评价时间
9 D! N8 u# p9 L* F" M& i+ R7 klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉- h3 Z/ }* g8 y0 g4 |" f; M
trade-times-total3 N+ D6 T4 b7 g: q' i& G
;;与当前turtle的交易总次数8 \. i, z; K' m7 M9 @
trade-money-total1 z4 A8 y$ k ~' s/ P) A( X1 I; t/ i
;;与当前turtle的交易总金额6 V F8 |7 s7 X
local-reputation
! R& R6 T& m e" x8 Eglobal-reputation; x6 |* q" M- ], e6 y4 i
credibility- x( L$ j! W. e8 a# P
;;评价可信度,每次交易后都需要更新3 m# H/ B5 ^. v$ I/ h
credibility-all
8 e: g0 }. x9 \# a3 m3 {6 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- E! _# ]- \% p( A6 |
& e( [. |, K' B% m. N: @* D
;;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0.57 H: a" k ^/ ]; `: T5 {
credibility-one" t! v/ N8 q/ G
;;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& I% u+ o. ~& D1 D
global-proportion
" a* J/ a _* }! Icustomer8 P$ f. w/ W% d' q9 v( _; h
customer-no
* Y/ P) B1 ^" e" ?5 d9 wtrust-ok
6 A& U5 }' }7 x6 g4 utrade-record-one-len;;trade-record-one的长度: p* p1 t3 t' c `! Y6 l0 x
]- _" u, j/ e: K% P' r
+ F+ N0 v/ [$ X$ o; A5 C;;setup procedure$ Q& J" f6 ~6 `& t( V
- _' ^* W( g% f9 ?( eto setup1 [# D! {; p# {7 `' j2 _. e$ C
2 Z# `& z; I. l6 {2 T
ca+ i6 m; b3 l: c3 h
_, ^1 c B, K8 F5 minitialize-settings- @# | [ _2 z y3 n
& [) R2 b6 W, K7 O+ e3 `; t) v7 icrt people [setup-turtles]
# j, \& d. t) B w" P/ v6 V7 ?- h. ]% _
reset-timer
" r+ Y: f/ w6 \ F- Q, w$ [) Q: g, F1 U0 Q1 w0 v9 ?; p
poll-class
! t; N4 c2 A- | a) P# o+ D0 j5 E
setup-plots7 f5 W7 f" Q& l- q7 V% E/ j' B& D
, J& W2 H. D% J7 l, j6 K0 ]do-plots
# k4 N* l- l- @* E3 `: @# l: E# Oend
d4 {/ Y G) @+ f" ?6 b7 Q
# m$ r, ]3 ^( `2 o5 g3 D: u4 Kto initialize-settings
?6 k$ ?* w$ P) u
; X, \( }: f+ T4 u" hset global-reputation-list [], v* J4 C6 o2 Q# N# F, g
, V- G5 P/ H4 t- w( X& Bset credibility-list n-values people [0.5]
3 P. i) x% V& r: n4 r6 ]6 x+ a5 s. I: ~) w- K; [0 e
set honest-service 00 s3 |6 V$ z& d+ [+ l: J+ \
% D% E9 O! \8 k6 `1 Qset unhonest-service 0
5 V: y9 x" o; {) x
9 h5 b% s& d* g0 _set oscillation 0, D3 K+ p3 [! Z$ j; p, m
5 O! o. t9 o6 Zset rand-dynamic 0
, o0 @- T: @! W5 M7 u) Yend4 w- ]: K( d, a
) Z2 b+ s4 M8 ^1 e% q: U0 oto setup-turtles 6 I9 M' T; m9 Q1 z& @0 X
set shape "person"
8 H# o( f& k) U$ `' \setxy random-xcor random-ycor. _& u6 |4 ^5 P- f8 ]: S3 N
set trade-record-one []
. v8 a3 ~: ^0 {4 _* `, j
7 m% x7 a7 W$ P% v# d. fset trade-record-all n-values people [(list (? + 1) 0 0)]
$ o ~9 P6 s. t$ G3 U6 y7 H% Y; S% O) {% c; c
set trade-record-current []
; a' A3 U# M3 M$ X6 U2 e! tset credibility-receive []. ~! l$ k9 b, e# B+ R S) ?
set local-reputation 0.5, d$ v9 H* S0 m0 L: x& X4 C+ h
set neighbor-total 0! D! r0 S+ C" N
set trade-times-total 0
& _" O( y E1 R8 Aset trade-money-total 0# c! h5 q0 A) Z8 g( E! z
set customer nobody
& g7 b: \: O( Pset credibility-all n-values people [creat-credibility]0 S4 _" O w- b Z7 s6 E/ v& C
set credibility n-values people [-1]% G6 Q$ `4 `7 J6 P% @) J3 I5 Z
get-color
1 r4 V2 N1 S: Y2 W/ i
( k! b5 p7 r" q d5 l9 q: N- ~end
6 d4 _6 \& v1 u j% c4 r" {( u6 `6 V t$ M+ @
to-report creat-credibility0 B+ m y- P: x5 [
report n-values people [0.5]
3 Q6 m2 v+ B: H! z) t5 e/ w- f1 Mend3 j! Z, w6 f8 m9 u3 [, I, `; ]
! ?# L- T/ e# \7 R! N, d3 Oto setup-plots$ {$ v0 W0 }; {: E" Q% _
8 k7 j& x9 i7 C6 X$ ^
set xmax 30
# b# H9 t$ U7 H( S5 ~
) T' w# w3 A, H/ _ Sset ymax 1.0
; B u/ h: f! Z4 A& z) ]3 k$ |( Q4 W2 m0 e1 P
clear-all-plots7 E* {5 V+ t+ w! W
/ J' n; S, A3 f! b N
setup-plot1
5 G* D9 n) P$ s9 n& K
+ ^, {7 u" M- l7 E5 Ysetup-plot2% u, N) o3 O3 D0 w9 [$ U" s0 W
6 ?. ?! v+ @: Z7 `: W( e$ l
setup-plot30 @3 q3 G( y8 i; q4 G
end
$ B! ^# a. L) _2 a5 G7 D
Y, g3 e( ^6 N9 F };;run time procedures+ [2 _0 g) u9 [ R4 o" e7 d0 r
/ _- v- R( N/ O3 f
to go
' E0 V; h6 }4 k- v; `
5 H/ J; h( P2 P; [8 Kask turtles [do-business] e1 ^8 Y4 n5 I
end
8 a, r9 k- G( J; s* m( m& k. p
# Z& T+ W4 u- K- l7 _- bto do-business
6 s: p% w$ ^* q9 _0 v0 |# ^# |" n2 \1 X
; L8 u* e+ e# S* K6 D6 ?8 ^
rt random 360
! L! `! a7 M% q7 [7 [* r& ?- G( ~ a/ _/ Y, `3 [# k1 H
fd 1
, |4 d- W3 R& p- N$ Z+ j* h
- ~! ~! _7 U' T( q0 difelse(other turtles-here != nobody)[3 {+ P/ }5 O- ~1 T! l9 T% @: k& `
0 K6 y: r8 A$ O
set customer one-of other turtles-here
* g+ Z% y _8 R0 Y
: |5 g( `# R6 Q, N! r;; set [customer] of customer myself
" s a" I7 q1 F% Z, S
& m- P, c* Q8 D) Zset [trade-record-one] of self item (([who] of customer) - 1)/ V- E4 Y. ]; d" z& [1 [7 w
[trade-record-all]of self) u6 g5 D$ j B5 D; m
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 C$ F+ S# A! b6 r9 D( U3 k- q
& o9 C# O) `/ G7 u( L; aset [trade-record-one] of customer item (([who] of self) - 1)
: T" E7 U4 o( f, l0 q. w5 y0 g" k[trade-record-all]of customer
1 u. `5 d: H3 B1 @
3 y6 t7 Y0 N U9 [set [trade-record-one-len] of self length [trade-record-one] of self# ^9 i8 G& g, d9 Q( z/ l: V
5 B+ g* \' O4 V4 b5 B! w. I' Oset trade-record-current( list (timer) (random money-upper-limit))' n Z3 C, j$ T' n
% b, n# k5 @& B( o6 ~
ask self [do-trust]
% I3 @! g& `7 n) l: k;;先求i对j的信任度& w& `8 ?; b& ^) q8 ]
+ a2 ]* I5 f& s1 r! r
if ([trust-ok] of self)/ E- B3 U2 S; ?( [ P* {! \% s
;;根据i对j的信任度来决定是否与j进行交易[" i9 F" j; @* N; T4 E
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
$ w! N& i) d: S p
8 P8 T0 a' U' j# ^) C[. B# G6 P! t+ }9 O
4 k" A v7 C2 _do-trade# o- m3 V/ r) V: D& b
6 I! k5 _) h" A! u3 J6 v
update-credibility-ijl
: \5 ^& ?0 V: ^1 c t0 j c' g/ _
8 L0 G# v5 r, v- M$ u3 W5 Fupdate-credibility-list
; F2 |5 V8 m4 R5 g7 e) w2 H$ [+ h
# M+ C2 N6 Y: x
update-global-reputation-list) {9 v: j" s: j/ ?. s9 `) H
+ L! E0 E) C/ M; Z
poll-class
" @- T* m0 n) H' o* Z/ c! j9 I; N" u4 q- b/ @# }
get-color- v$ z) R7 @% G2 u! o: g' H5 V* j, S
) p2 s" G* a! b! ^, i]]
* t9 t+ z* d% Q5 H# H9 r
" T) v! @+ ^9 A) {;;如果所得的信任度满足条件,则进行交易. R; Y7 c+ }7 E; J6 D6 F( a
7 E9 \" Q8 s6 Z( b
[
( }0 R9 }! @- S, V: X
5 A( M! r" M( G& }8 grt random 360
! w+ @7 d" v! A9 d3 c0 q9 S& G5 F" p* g* W0 f0 g6 r$ P
fd 1
U5 u6 a2 \( _; o/ D' X5 V: X6 r
1 Z! g# u' c2 q ~& q* v/ ?; }]
" D$ C$ M+ _( m) b* _1 u) [( O8 ] ]0 d5 a: _4 ?7 R( Q
end
8 Z( h3 ]( b7 c% \4 a$ \$ s5 A2 |* e1 H8 L" r
to do-trust
$ n6 r' o) B* t+ Cset trust-ok False; ]" |( |9 B, A/ X
4 I( C% g. J) V7 H; r3 a$ q
/ R3 f8 l5 d3 ~5 y
let max-trade-times 08 [6 k/ [4 S' s6 j3 `
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& h# c! ~5 @' Q3 T. i" v0 e: qlet max-trade-money 01 O, R1 B0 T9 A5 R
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- x2 M$ n3 S6 [% W9 y* Z9 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))8 c0 Z' j( P. i/ n
* E/ f, }- p* i6 P. t( b9 H# H( q
- O( U. s6 Z, o. ?- ]0 Y
get-global-proportion
4 \" h+ D( ^- E1 Zlet trust-value& }6 p! C& y8 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)
, x {# Q; ]* x5 s7 hif(trust-value > trade-trust-value)
" y) f, n' I7 H% s6 ^[set trust-ok true]% l: |5 R# R6 C
end) R- J* z- i7 I4 k
9 f1 h ?1 Z/ p8 K; g
to get-global-proportion' D4 \7 e1 F# @( L
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)$ y4 _2 d9 N3 C. Q
[set global-proportion 0]
l! A4 }) {# S% r9 D[let i 0
" H: j# @- Q$ l1 t/ ulet sum-money 01 E9 a' F" F: P# d9 h0 X/ R7 A1 B
while[ i < people]
/ [1 d4 q. W* p0 [6 [9 q" O[7 M8 o& I; x& [4 j! \1 m; {
if( length (item i' m, V& E" @, s
[trade-record-all] of customer) > 3 )
, g. ]3 M, B, [[
! l6 r7 Q7 {4 O. F( b! Z8 M5 ]$ W# i# v/ Aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 V3 o7 |) {1 T3 P
]
& O7 ^7 A) _" U5 z( ~]- i& ?7 S& u# k- v3 z
let j 0
4 u) X4 M6 {6 u3 Hlet note 0. e, A7 R7 ^; F
while[ j < people]
& b. | j& [# X) `5 Q+ F6 K' @[
( n1 j! e% u9 L) |1 x2 K- }( a5 w+ Zif( length (item i
/ Q* n- k& \3 v* z* S* O) V/ d8 Z- g[trade-record-all] of customer) > 3 )
8 ~* H0 n7 p" v[
6 q' u8 |% x a& d- m% mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; N# F; V: g% [' x[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 Q, \& B8 B" `4 H7 }& i
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ T5 `$ n6 P% o6 B! c4 N6 \2 I' I. U]
, [! \# ?" @" _0 o]
% r4 P# e% J+ _$ `$ Rset global-proportion note
+ v8 _+ w9 k& }$ n]9 c! s+ m0 a) k7 |
end
) Z. n; ]3 `2 l2 `$ d* w3 A" P9 _0 x6 L" h* ]$ x
to do-trade
) U9 z# A; B) T' l5 @4 A% M;;这个过程实际上是给双方作出评价的过程
+ R' R0 q. a1 E- {. g/ D- J D& bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- f! _: g: e# }, v3 qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 V: C. r: d- N3 D0 Y
set trade-record-current lput(timer) trade-record-current
% R3 O3 u( v/ W' N+ B: g% K;;评价时间. @5 o6 ?8 A, | f( s# j
ask myself [
/ y0 \! M2 c3 i8 X+ @* z) Pupdate-local-reputation2 T1 u" q) z- X" y7 p9 R: ?) c( a
set trade-record-current lput([local-reputation] of myself) trade-record-current
7 [1 i- B. h# ]3 N/ U1 |2 ~]
) r$ @7 v+ L% L0 u' lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself) ?; O5 f) b9 ?6 @
;;将此次交易的记录加入到trade-record-one中
% ~+ [; d9 B/ }6 N2 yset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 u9 l4 h5 _8 ~3 u0 S
let note (item 2 trade-record-current )/ v( c2 x7 D7 g$ A+ W0 ~+ Y
set trade-record-current
" F$ H& v/ x# y$ b/ ]; P# \9 u(replace-item 2 trade-record-current (item 3 trade-record-current))
]2 z+ \" F& z4 _4 L% Q5 L. J8 r4 Fset trade-record-current
! {( E2 r2 u/ Z* u% w* q6 Z(replace-item 3 trade-record-current note)# O: L. n# L5 u. `) K7 P% {: z6 G
. q. v( U) }' v" T
/ k# x$ I: R! @- Yask customer [, t' u% r4 Y: S/ a5 G: k
update-local-reputation, U) ?3 Q' ?/ [) |# h: ~5 [
set trade-record-current$ R% u, k/ \* Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . Z t( Q' e; f# j7 k
]
* S; P* I" E% q, P
& V/ o. \! G$ Y$ f7 `( B+ I8 _1 F2 e2 K7 _+ i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer4 G, y4 v; K7 k/ ]1 p5 c0 ^
. B4 M, `# E7 w; f) A: } p$ W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& ?" p9 o' U) \8 c% E% b0 W
;;将此次交易的记录加入到customer的trade-record-all中5 [8 I0 D& \. f! M& P, f
end
4 Q; F/ G+ F/ n$ L; M5 a2 @$ F/ o. N; s* g: C& s
to update-local-reputation
8 ]! Z p0 l5 L( q; Cset [trade-record-one-len] of myself length [trade-record-one] of myself1 ]- H% w3 `" J( y
0 V* _% b5 y5 s% K
) d( i: g/ p: ?" p% D;;if [trade-record-one-len] of myself > 3
8 F: O# Y) n0 O- o# ?. jupdate-neighbor-total
% M! w0 U" p+ V8 a& K, w;;更新邻居节点的数目,在此进行
/ f p& A6 M& h8 `# I& w4 Llet i 3) T6 F! Z. E: l2 r7 Q- p, m y Q0 Y
let sum-time 0
0 x( d: q/ x* [/ swhile[i < [trade-record-one-len] of myself]1 Y/ {3 \. j7 n! ?
[
* v. N: \8 A8 B6 a/ X2 i7 Yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 g7 A3 E$ {( n6 M; ~
set i6 i, u" A) p6 M5 N8 m% x
( i + 1)3 R8 g) W' ^4 ]. ?) v4 d4 V- S( s
]; `3 ^2 [. U7 N8 g0 g. d
let j 3- V) \+ {! e4 r- h5 K8 k- o3 s; _
let sum-money 0, W: r4 x; f" I5 { t
while[j < [trade-record-one-len] of myself]
$ z9 u% Y4 C; ]" e' p# O& K6 O[! s( D6 M3 p- q; ^
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)3 T7 o( q. m0 }: o0 h; S7 _1 Y
set j
# {+ Q* ^- e6 H& V7 d( j + 1) Y4 l/ v) {- |, b9 Z$ n! x
]
& t/ }+ d# t. q; J" p! [, B: ^, ulet k 3
& N, ^/ C" l4 B0 ]+ M# @* xlet power 0
/ r5 l/ P4 \ `) f! o0 u, z- P# zlet local 0& }8 g, u |+ S8 n5 a! ^
while [k <[trade-record-one-len] of myself]
# ^1 z8 c0 V$ S6 Y" m/ A; i[
; y5 N# f7 D6 _3 H( ?/ y. Jset 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)
: z( e9 [ X7 _; z/ }9 Z7 J8 Mset k (k + 1)
+ }6 `! J2 M- W1 w]' I$ P! l: A/ ]) @) j, f6 J' z
set [local-reputation] of myself (local)
: b. j+ l3 o& z @3 \& Kend
# p" T- |# C" I N( p& A# m& o% h! B1 I
to update-neighbor-total7 e' W! S n7 i5 A. r. i
1 P. h4 q+ H! g/ J. `
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 X9 r8 z l) S# G- D; Q" T7 r! [+ r" d$ N4 i
9 X5 X3 c y! x& D" l% J
end
' I; ~6 X( n- w& o0 l# K
+ g; C# T* O. u$ D" ^4 Oto update-credibility-ijl
0 \/ J+ Q8 ]: n1 \8 T" j( R: o. [1 \2 {
3 n8 \/ w( ?; o9 x' B;;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。) q7 D0 O# A+ D
let l 0
, r; \! Y4 B1 @7 R2 E/ {8 nwhile[ l < people ]" a7 J r' m6 t2 d* Y& f
;;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
3 L* h v; ~1 A5 j P9 n: v( c[
: I7 s0 Z! m1 U* W( H9 v! Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer); k: R: G) w1 U M# P. ?
if (trade-record-one-j-l-len > 3)2 x: n5 o! f w
[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
6 O# Z. I6 X( Y9 `/ tlet i 3
) X% F) q+ g! V _$ n& slet sum-time 00 i5 z5 z. ?7 S) u! K8 G1 B% k9 V# D, B
while[i < trade-record-one-len]5 r8 A: ~) K# m4 R
[4 f0 @. b Z" A2 I$ u' N6 K) G
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( J3 d9 o4 M' ]" ~! ?set i
8 i! E8 a* { b% @& k8 `2 }( i + 1)! C" y& A/ f, L D( r' w: }
]5 O8 }" S5 O3 B# _7 o$ |4 Z+ M5 H
let credibility-i-j-l 0
; z0 k1 H. F5 w7 `9 b- `- B;;i评价(j对jl的评价)
/ z# u) Q9 Q$ P+ plet j 3. Z- d n" \, T2 ^7 D7 A8 c
let k 4
d) ]! w, G" |) q: \4 }while[j < trade-record-one-len]
2 W% V0 n3 I' \- ?9 ?- e7 u[
1 G. w- ?# I) u) A1 l% j; L# ewhile [((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
# G) S. y: @4 o, n" `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)
& }* P% e8 o7 }7 B% ~& Kset j
. c& J. q d) K$ f2 z( j + 1)
6 R5 \7 F9 g' f]3 k2 P* s! h( }
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 ))2 i/ z9 z, s1 V- Z/ `: B' ^/ ^) @
O4 W' q- \+ S! q5 k" c
, F' W. q& u6 m. tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))' ]; r/ \/ D) n
;;及时更新i对l的评价质量的评价! c8 f$ T0 e1 @ C5 m+ h
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 |* o8 c4 f: e1 ?0 s0 V
set l (l + 1)5 L. h) O d( v/ c, |5 U
]
" t( N. J% ^9 A) w9 Xend* c2 R$ w; L. T
4 Z- H: b9 d$ Y, u8 {8 ito update-credibility-list5 D5 t0 b6 ?# z s/ M5 r
let i 0
; ^7 o' E+ `4 R: |' u. S/ U" kwhile[i < people]" l+ D; C/ E5 _" O) v- {
[
; [9 g) J8 V+ V# y# k" P8 i8 Y- Dlet j 0 K# X. H( X4 u$ L" ]! S# Z. k
let note 0( p9 {) L$ o) J3 E" n& }% Z) M! u r
let k 07 G- o; ]6 N0 D0 }6 S8 q
;;计作出过评价的邻居节点的数目3 S: ~. ~/ k; `+ H3 e: C
while[j < people]
. J7 x+ V9 S& I) m7 C& w/ \[
7 ^/ R' K) C3 x% O- }. Tif (item j( [credibility] of turtle (i + 1)) != -1)
9 f5 }" O6 k% V;;判断是否给本turtle的评价质量做出过评价的节点2 l( ?. u1 U1 B* v
[set note (note + item j ([credibility]of turtle (i + 1)))
' b4 Q n0 Q% d% @;;*(exp (-(people - 2)))/(people - 2))]5 \3 o3 r/ l( {* V9 o+ R
set k (k + 1)
9 U( U% }& j; j0 h7 z \]
e+ K2 ~3 H, ~set j (j + 1)1 m& e1 w% B2 [1 G: z) i2 |/ x4 `2 W0 k
]
+ r% t, z J! N% ~ j hset note (note *(exp (- (1 / k)))/ k)- l) ~, J6 z6 |5 D v5 h
set credibility-list (replace-item i credibility-list note); \6 n. Y/ k* ^
set i (i + 1)6 m% z% I1 e& i- S% s! o
]1 E: b" w5 }! I* \
end" F3 U6 V/ k/ [+ Y, y
% O* n" E' [( @ d" d4 P9 l* nto update-global-reputation-list9 m* s- G* S: ~8 ~
let j 0
- B" R' Z0 m6 }5 C$ E* _while[j < people]0 V4 t* N( b. x+ X, r! ]5 U
[: ]& v0 v* L, \ c k) G$ v6 p
let new 0
% c- b& P+ t/ p5 d% |8 w. L/ X! w9 J;;暂存新的一个全局声誉
8 m. X: q6 L$ `let i 0
8 Z. y3 o( H& Alet sum-money 0: O1 ?3 Y( c# z& f, o+ D5 }7 C0 r
let credibility-money 0
- |& k3 |6 U; D- Z- Rwhile [i < people]4 k1 {9 B' H; i# @8 J3 R
[
3 x, L! s8 m& B6 v3 A. C+ |set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& J C% H- Z* Q" n7 b% W( b
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ x- m* l2 R7 W, s& L5 p
set i (i + 1)
; g. {! M( D( y: t]
' C6 [% a) h; I8 c+ Ilet k 0& ]& r# m# `& r; k5 l& {/ d. T) Y
let new1 0
! m+ r1 D. L4 L$ g6 O* qwhile [k < people]( s( O$ \( A" B/ Z2 m3 ~; a
[
, ^9 j) @2 l; o8 `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)
/ R+ M' v9 v9 Tset k (k + 1)0 V8 Z1 j8 N$ z" N
] w6 J: H; P5 z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
8 w1 Z, i$ y& L- Z' Cset global-reputation-list (replace-item j global-reputation-list new)
c, S8 `0 l; e$ a! E- Aset j (j + 1)! `3 h p( k" A# P' z1 d
]
( _( \' M- R6 p/ d7 v7 L; wend y4 `# C# ^# n0 ~, w# e
" L; }. L. |. R
W- x& u' ?3 o
7 W3 q7 S( _. o+ x" d7 _( `to get-color3 Z4 Z. W' \' [, |
5 O' D+ @5 X2 l# xset color blue: V0 K% j) {/ x1 a( M# z' W
end5 c I. ~* b2 M/ M8 ?0 r# T
* Y7 g- Q ?. o X: v$ T
to poll-class
8 W7 @6 a# W3 x8 T8 [end; Z2 k' u5 k% M6 |0 y1 T
5 g; {+ a; G( K% s; T f6 {
to setup-plot1
$ ~2 L* X, M/ |5 {7 {8 x! D
- x4 Y" Y5 H C8 r% V! _; bset-current-plot "Trends-of-Local-reputation"
0 ~2 ?" M; I3 V2 x7 ^" I7 o; a
- f& E" Z H4 U) \% o5 Q1 \set-plot-x-range 0 xmax
6 f0 e3 H1 ~# \& s+ N) c+ K
) Z! N/ O: k( wset-plot-y-range 0.0 ymax
n$ a0 Z( e! z& zend/ T2 N5 u, U- O3 M; {
; A0 v( D7 B- d7 j- x( @2 Kto setup-plot2
" S& f# @' |# Z: I4 f+ n' S# A. V2 S' {
set-current-plot "Trends-of-global-reputation"1 K- E9 L% I9 x$ G5 t
2 X7 _3 T1 |- D0 \+ I1 n/ o" p% i
set-plot-x-range 0 xmax
* R( I. E6 V1 r# A* U8 Z
" [( ^7 p9 W2 v& V/ |5 uset-plot-y-range 0.0 ymax
* |/ E4 ]( ^- s1 pend5 Z# i) `/ w. O
/ W* f. `( m8 w- o3 Q8 v. {! pto setup-plot38 H0 K) ^6 N; `! b
- C9 ^5 a# }( e: T6 |set-current-plot "Trends-of-credibility"
0 `2 C+ s: n# a' X. N7 q' P9 Q* }; R1 q* h8 h C6 n4 ~
set-plot-x-range 0 xmax! i# \- I) ?7 j! Z3 a; j$ X7 l
7 n; D+ Q. b0 ?4 b7 k2 c* ?
set-plot-y-range 0.0 ymax
8 v/ ~2 q6 u1 R: D; d5 }! Bend( `- a( Z9 B; s# A s3 J! ^
. _4 K8 b+ w6 i! u* A" C6 \
to do-plots8 `& M% I+ W/ w# d" E
set-current-plot "Trends-of-Local-reputation"
! i7 R! K' F& ^. f, x5 @set-current-plot-pen "Honest service"
& l3 Z* D: Y* p t ?- dend9 a: d$ O8 }! ^0 Q
# P# m a" z$ s# z[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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