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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
1 L4 T; V/ |, p7 E8 O- X/ iglobals[) T$ X: h2 P# \1 }
xmax7 @) \' D4 F$ x& u; D9 n
ymax1 W- a3 z3 Z$ v; l& U! s
global-reputation-list
& u- @8 r& D7 R1 [; m+ ~, `: h) U2 s7 ^) L
;;每一个turtle的全局声誉都存在此LIST中0 q- ?5 |( }$ l8 _
credibility-list& R" n: V/ o) ~" C9 N
;;每一个turtle的评价可信度
0 y0 b* r6 j- Z3 ~ z$ yhonest-service
0 F! S1 Z3 B7 ]% ?- Bunhonest-service: f6 P x; W8 Y8 W* u Q6 j
oscillation5 V4 n+ z0 V: Z2 a
rand-dynamic" e" F. G2 T) ^) |
]: p* w! P% T$ Q4 X' H
8 y0 `0 ~' m) r2 s6 C# T9 Nturtles-own[
7 i7 m* }- ^0 f4 strade-record-all! R, _' U2 m" \* X/ G
;;a list of lists,由trade-record-one组成
9 z2 |5 n2 b. N3 [% M$ t- m# Gtrade-record-one
t& x- N8 ?- w9 K c0 I) n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& b" B6 S! \- j* A. N
# Z( K3 K! S" J2 y0 A1 v8 r;;[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]]# v9 O2 q, |( X. h+ W0 U' ~5 {
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], j: n* w- U5 q& h$ H& _; I, I2 l( 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
/ q8 Y2 \# n" Y5 S$ |0 eneighbor-total
4 x# c/ L% R8 M0 B: j# F* m;;记录该turtle的邻居节点的数目
i9 D* [+ E. Wtrade-time
, v ?0 Q9 W2 d3 I4 G k" \;;当前发生交易的turtle的交易时间
2 W5 a' F/ f5 C9 Dappraise-give' g& D) O) j0 L6 J9 C: z% H
;;当前发生交易时给出的评价2 \; D+ {: a `0 r' P$ S, e; _. z
appraise-receive; g, n% Q7 P8 [0 Z* k6 W
;;当前发生交易时收到的评价* W B7 r5 O! {
appraise-time# |/ q8 Q" @) s3 x
;;当前发生交易时的评价时间2 ~& q- w- p7 L4 \/ b
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
, q$ E. Y9 D6 r# p6 s) ~trade-times-total- ]+ q+ T5 Z! p
;;与当前turtle的交易总次数
$ ]# M6 F' {4 M: rtrade-money-total# m x# H, h* u- n
;;与当前turtle的交易总金额
# e l* ], t3 ^local-reputation
$ H6 u. b& D$ Z4 ?global-reputation
/ |& _5 }+ }: _ acredibility: C1 `% g, D- J3 a. N+ `4 n) x
;;评价可信度,每次交易后都需要更新
# L8 d$ s8 o f1 Wcredibility-all
- q$ p. r* b# l: O q;;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
: N* F8 M3 F2 Z6 Y. G# {" E6 l. d% {0 H; s* l6 Q
;;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 \5 R! f3 U5 Z0 U! Y2 }
credibility-one+ C* P1 |) g2 N9 i, ^+ \+ 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
6 \8 A" C$ \% \% l. `global-proportion
7 v: m5 O0 A9 p+ i6 }" n5 Lcustomer
# R7 \; ]4 P# A- Ucustomer-no$ N5 p" K' ~# p% }$ f
trust-ok" E4 Q* _- g- d/ ^' k" R! x
trade-record-one-len;;trade-record-one的长度
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& [! h# f# y' w. [
8 V# @* C$ l0 H* `5 u) Q( c5 H;;setup procedure9 n2 z W' j7 p' [; v9 i' C* l$ p
1 _3 a4 x0 s9 Y9 u, h5 N
to setup
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5 H/ w2 ?0 ? F: r- x! ]ca: q" r% w" V7 [0 \* h
+ |0 T* V: d: o) x$ }* A/ Z2 `initialize-settings U, ^" g) Y4 q" g3 ^+ i
; E& X: w9 }5 q. X( i& u# T. ycrt people [setup-turtles]
" F1 X' k- x( f3 I1 Q) `9 B
. U! B7 l* d |& Freset-timer
# i9 E6 l4 f7 k7 V
; ~4 J3 M3 a( T9 C$ O8 v/ k' @* Y4 s8 ypoll-class' [- c" B* w/ u+ g+ H" i; k
0 }6 Q1 j0 U: u+ h6 lsetup-plots
8 ^+ r) x! M6 ^6 T% E
! y& Q- A1 Y4 d o+ {1 \0 Edo-plots: c8 b% D9 u1 z: e9 y# \
end
; _( k% p8 \& b/ \" r8 R; f
% ~9 b: G. N# n5 x6 w, w5 n( Zto initialize-settings& I$ t8 a9 P9 |. Q3 I
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set global-reputation-list []
3 J: x8 ?! L( K3 c4 V1 B9 V- ?& p' q, Y9 M4 Q
set credibility-list n-values people [0.5]8 U% [7 G# [" f& t4 K
% x4 c5 }6 s+ Z" yset honest-service 01 w! p6 o% c1 Z; a5 A% r) L
/ p1 q; r% g# o+ m
set unhonest-service 0
! e6 m+ M$ {' K5 v4 U% l
. q. K# l k/ e: A/ Xset oscillation 0( ^) f- n! ^5 V2 O, e5 q; T
* A: ~) ~" \" l. B. G
set rand-dynamic 0, t! g! E7 _! |6 H6 L
end! Q1 i& P. H# a9 _
( G4 ^5 `- f) I5 M1 Lto setup-turtles
4 T2 K+ `0 h8 x) _4 nset shape "person"
* F) s' L) V# U) t' Dsetxy random-xcor random-ycor4 {& Q% e ?, ^" L
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] 2 M9 p" C4 N! D# E$ w. K8 G. Q4 T4 |
9 H R5 m% V: L/ X; o! _& I
set trade-record-current []
! o7 x* E8 t0 Oset credibility-receive []# s$ w3 R2 U0 l1 u$ H& n. R
set local-reputation 0.5
# i! {0 j+ I+ l/ vset neighbor-total 0$ @4 K1 ?% Q1 r g$ Q3 u
set trade-times-total 0- N( e# y) L/ J- D: }$ y
set trade-money-total 0% m! V! |2 P) Z( ?7 w; Q. l8 A' p
set customer nobody, }5 F( x, ?, ^4 z' I( m n" U
set credibility-all n-values people [creat-credibility]
8 G0 z- \+ T( Zset credibility n-values people [-1]: l$ B7 A# W; L% R4 A( `9 V6 f3 C
get-color
+ |2 |; H; S. O/ o. Y! |, X1 ^, e! [+ K! T" |: X0 T
end1 ?6 t' V+ f% F/ }
0 x! I7 |, K, Cto-report creat-credibility% K+ w4 ^" [' P5 _6 U+ P
report n-values people [0.5]% z' q' G4 S! e3 j5 ]* X
end2 T' X4 E9 Y9 y; B
/ @; V6 O. m" r% t2 Z$ j1 x" Q( _1 }
to setup-plots" i* V8 ^' t# A- a3 T% m
1 v# s" n4 n% H$ s
set xmax 30( x" }$ m& d% m1 G- G
, P1 m# P' h. x, L( T0 [7 Q% q/ D
set ymax 1.0
% ^$ x4 ~! B% A6 f9 T1 Q
' ]2 z( k" U) xclear-all-plots
+ z+ u4 j9 w0 R) D6 ]* x2 o3 X; _$ A4 l2 K1 J/ L/ m
setup-plot1
* Z3 q! [2 E1 Y- Z) E6 K1 h% b
" x5 M+ ~& h$ Z5 J8 Fsetup-plot2
; Z4 K, X4 _' P
( s; e u; \3 a! r+ @- X. d5 [& s, ~setup-plot38 {. I) ]" u; B3 ~
end0 o" V& [; r2 P7 t) Q9 G) F- {
3 w" m6 W2 K7 r: a& I' c6 O
;;run time procedures
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to go
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ask turtles [do-business]
2 b7 J$ }8 W5 send
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% C3 i* i+ i. q% T2 c z* `/ Lto do-business
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/ v* y+ ]% ?* L/ L* N# e& z, T9 e- ?: L% \+ `! O _) _
rt random 3601 m# t# o9 } ~! `1 j, W5 @& W- ~
/ m# U Y# @( Y+ I% E, \7 D
fd 1
6 l7 k' u1 `/ p8 ~- e8 O+ R; |9 A. ?" y: v! \' f; q
ifelse(other turtles-here != nobody)[ p6 E/ D" H9 c- ?+ V8 t( [
2 R5 s& C; G: s4 I2 e( y
set customer one-of other turtles-here7 d. j. r6 P* n5 Q
6 y: K* o$ s, B a
;; set [customer] of customer myself0 { ^( u1 n) H( O0 t
8 ?9 D: z$ y- G M" j8 y2 B0 uset [trade-record-one] of self item (([who] of customer) - 1)4 {5 t" b' O$ J8 F1 \
[trade-record-all]of self
/ N* \; q. a# Q/ u6 N0 V: Q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" Q1 ~. o+ h7 j O: Q) U8 J6 }* a+ {; E# R9 m5 c z- s" _
set [trade-record-one] of customer item (([who] of self) - 1)
( Q/ h( b' r. V9 Q! l" u[trade-record-all]of customer
/ G2 Z3 i0 w* [, }0 P) o% o
5 {( @+ r/ A( e; ^: ^set [trade-record-one-len] of self length [trade-record-one] of self
8 ?+ k3 x5 w d$ I- n6 b: L# M U+ E9 Q- _. l3 D
set trade-record-current( list (timer) (random money-upper-limit))
& ] Y" v2 O- a6 X7 [
! i: ~, c. K! m9 ~: o3 Y8 l* t* Xask self [do-trust]
( b+ j( E. I+ |% a3 f;;先求i对j的信任度
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if ([trust-ok] of self)9 D& i. L( y* ~
;;根据i对j的信任度来决定是否与j进行交易[2 \# a X3 d5 Q* j
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 L$ m6 F$ J) W$ L5 V0 G4 \% [
5 O6 L( Q+ N: V6 [" V2 ]8 {# o6 [ i[
2 j/ l W6 k. d3 T
, W0 v( Q- k/ |! E7 p: Ldo-trade
6 G4 M- q7 k: L' ^/ a7 ]" z( j; \! b* J% E
update-credibility-ijl+ V4 W) B7 ]- v* ]8 [. s' c+ A
* J2 }/ G o5 `/ d; }7 Q. R# o1 L- ~update-credibility-list
9 C8 `' U; b& J- I0 J9 o. r! M1 I% W9 C& U; U
2 J- ^3 A: u( v T {- p+ s" T$ ?3 |
update-global-reputation-list
9 V E8 p3 }/ |+ E4 d. C% h5 d/ O: n- Q
poll-class
/ ~3 _: c) W% X
, @) B( Q% A& K/ ?get-color& d. j T1 @' e1 _. c
. a" H* i7 N' e& }: d2 `8 v
]]
" L$ {0 Y& Z' v
* _8 n2 P; [/ F2 Y" C' e;;如果所得的信任度满足条件,则进行交易
5 ?3 @+ D9 h1 O5 M. X( C4 G' U5 v3 k# n6 q( t! d& `! l
[
1 b" F6 ^# u5 M1 a4 k
4 E: P$ Y& M1 e1 B$ Mrt random 360$ _- ~' T8 x7 `+ u* w( Y8 k
+ E2 q0 L5 S4 G) i' z' gfd 1* [, M6 ~0 n4 {3 |5 V# B' R: Z
+ P* H4 @/ u2 ~" ]& k& U7 ]5 V]( l6 V- q) q+ P0 d$ q+ G, w
* V, [3 {2 I4 z# x3 U, r
end
/ ]+ |) [& t0 q/ N* _
0 m7 w/ w1 Z' A& m5 oto do-trust
+ U/ `: I" l, _( Q0 f; B0 S& Cset trust-ok False
# n( g! P! R6 E" U
. H+ A: {0 }. Q% |; l8 ~( g
- I. C5 ~; M: _* v2 Olet max-trade-times 0
) f& d. f. Z9 j5 jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ q8 N* v, x4 d. K, A/ M6 ~let max-trade-money 0$ C; s+ P8 S5 M0 n7 f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]# b0 y- T/ K; Q* D1 R, A
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- j" R9 b2 @. \) C. W; M* J o0 l5 A1 l; B% s" y( F& Z
! F# b, l/ M# Q; Aget-global-proportion' P" l' }$ I. _4 m; k
let trust-value' E. k3 L8 D; b$ u( M
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)
$ Q8 d, y$ Q( \ ]if(trust-value > trade-trust-value); }- g0 R+ ?! K0 V7 T* |
[set trust-ok true]2 I4 m h9 l! G! N! O! x; C
end9 V: H; D3 f* c; l
! y7 M" m: e5 P V6 C1 V4 {to get-global-proportion
8 x2 N4 o, T: g7 U! a2 Fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* ]9 r4 b, H* N8 j( G% V/ k
[set global-proportion 0]: a, {9 c4 F0 u h" x) s5 X U
[let i 0! @+ e4 z3 o; b9 e6 k5 h* |
let sum-money 0
' a! O( Y8 J. O, J lwhile[ i < people]- Y# E( Z: L% X/ [
[
6 W' v9 G4 z& x6 N% q* V. Rif( length (item i$ `+ q$ G2 ^4 [) [/ [: R! J/ l
[trade-record-all] of customer) > 3 )' p. E# X* }- N1 n9 R
[! c+ z, [$ h8 Z" {& j
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). J8 y; R4 P F
]
8 V: M, l9 x* |* Z]
% `3 n% V! _+ t$ S9 T7 a( alet j 0: `$ J6 K" I9 D0 |( S% O. m9 \
let note 0
$ W+ P, I1 t: `) U% C% ^! \while[ j < people]% p) D5 x! ]: c* x
[
0 Q- y& X- G8 c* j0 H5 cif( length (item i9 k& o+ m @* |' o
[trade-record-all] of customer) > 3 )! N8 f9 k; p' ]- m1 k$ b; `/ |, g& ~
[- _6 P8 n) c9 c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
X, O' Z$ z+ f" e[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 k( f' C* Z" ^/ q# g/ X[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' a& m8 M V" v3 {" i/ ?7 m/ l]
! V7 `& x3 b( k+ q]8 a& B" A; m' |4 R' N0 N: J
set global-proportion note0 N2 V/ H0 S& B
]( y% I$ g, Z1 ~: ~* f
end) _. M/ \; W+ N. l
! `' B9 ^' y' o/ I7 E. l) Eto do-trade2 q+ s2 Z E5 Q2 z
;;这个过程实际上是给双方作出评价的过程1 Z0 Y4 o7 k( R( n) J* H# ~/ K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 F$ F4 \, _% e* e% u5 L( ~- N+ y; o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# ?% f: K2 D4 Pset trade-record-current lput(timer) trade-record-current
/ |2 K. O2 o8 s( z;;评价时间* v7 g4 [( N5 @. F0 t
ask myself [
& o5 S7 G* X2 rupdate-local-reputation
i8 X/ `+ Q7 n6 Qset trade-record-current lput([local-reputation] of myself) trade-record-current
j$ R& o c" []! p J# y7 ^4 l/ f) V+ W0 E
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% q l7 H5 R: a;;将此次交易的记录加入到trade-record-one中
5 W' b! C) j& j, Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ T7 i% G% @# b8 Rlet note (item 2 trade-record-current )4 O4 m' ^* E- w R6 c1 V; D
set trade-record-current% A; L2 n' c* d+ K# ^. p6 b
(replace-item 2 trade-record-current (item 3 trade-record-current))* B% d. D( u- a! U! r0 I' x5 r, ^' U
set trade-record-current
" y5 Y" q, X0 S5 q4 t% j5 X v(replace-item 3 trade-record-current note)3 w* y4 b, w; \# X* S x- ?
. H; O' f9 o4 t1 o6 z; I- ?$ Y) `
, `, D$ B) Z4 h. m9 Q
ask customer [. ]. T d9 x5 P) O. X4 Z# O6 i
update-local-reputation
, E$ g; I: k7 lset trade-record-current1 g5 J) H% a# L+ J
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 ?7 e& j% ~$ [# w( P. t]. C6 @6 G8 T7 n# c+ R9 c' J7 @
2 W( s8 _3 T! {1 a& i5 i2 v
$ {# y: B- I) x) x zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) c% O) I6 ^7 b% e! @ G: K% l* Z) j- z1 w* O. w8 k7 Z- B8 ^2 ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 z& J4 ~ ~" k& X1 w;;将此次交易的记录加入到customer的trade-record-all中
s H" e m C8 X1 Aend
% g. k. J; ~# L0 p {- P0 M) c/ L4 F
" z: W- u. l* v }% B5 J5 tto update-local-reputation1 w, F# e2 e: `. j0 `. t4 H
set [trade-record-one-len] of myself length [trade-record-one] of myself% R. R5 Q! b9 f [' |; W! U% \. x
1 y& h; t/ c/ i% `% z
+ u0 s3 _' x2 M4 A; I* L9 D) t;;if [trade-record-one-len] of myself > 3 % m$ r3 [$ `; G) h9 E" k
update-neighbor-total
" O6 k) W/ t! F$ h7 };;更新邻居节点的数目,在此进行' ]2 I$ r+ C n: E" M
let i 3
, k; n6 J7 j j6 Dlet sum-time 0
& @7 ^, j7 A* A$ S) ?) u. T7 u1 hwhile[i < [trade-record-one-len] of myself]9 g- s) s% \" \
[
( \7 z% j3 C7 K: y2 g3 C3 X0 g. O& F7 Gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* z, Q. N+ |9 Q% F3 jset i
1 z2 `! }) ^9 v& y( i + 1)6 V8 V8 z) | r }( n- H
] h9 v% s6 b0 H; h* u
let j 3
2 a8 h( Q% [! s4 P# A! jlet sum-money 0
/ x# z* v7 b0 L1 K2 b; Q; [while[j < [trade-record-one-len] of myself]- ]* h/ ^ a5 p: A, m l
[
' D: K# b& D8 O- x7 Yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)% o3 q3 q9 z* ]' ]' I& z1 C& y
set j( D, G% n5 I+ K/ G! k Q
( j + 1)
) b' D$ n1 G v! S+ [+ k]8 w" W# u5 ~0 K& }% w
let k 39 ^4 T: n' Y0 X# ?1 y3 e8 \0 m' l3 m
let power 0
# q6 O3 t( f) U$ i7 ?( Mlet local 01 M: m( B$ O3 b: y) _
while [k <[trade-record-one-len] of myself]
" `( x' H# ^2 t w3 [[
* q5 B4 Q8 C$ Z2 dset 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) 4 ^2 J: @2 u' V+ B
set k (k + 1)3 j6 x; `$ k- c6 U) ^$ q6 J
]! Y: `, Y8 K& _ B' [6 {: c# V
set [local-reputation] of myself (local)
2 Y( v0 S) T- x- q2 s& J7 O9 Mend1 b* t0 F( `+ m
% u- P; z! }& x1 P: b
to update-neighbor-total
/ l* K7 W- {! V+ w' N; [6 ?- y/ N6 F/ g& n5 E. ^7 k
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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X& ^ Y: H! ?5 f, t* i
end
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5 r8 Q/ `7 D) [: ]- X' ~8 Q" N7 _# \2 bto update-credibility-ijl 1 i' ~: i: e0 R) e9 q3 t
# ^3 w9 G4 ?( 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。: r. U7 R& Z" c6 D( F, B5 [/ G
let l 0# U% O5 I3 j4 W! B1 R B: W
while[ l < people ]
# w- X4 v4 i: x/ w$ n4 p) y' W$ l;;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8 Z' E7 J! O9 r% h
[( \7 z+ I# `0 C- b$ J2 h
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); P2 \5 C" L/ I
if (trade-record-one-j-l-len > 3), D( R1 A& ]$ q# ]6 q
[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
5 Q- b ^3 b0 A( H: Rlet i 3
% O9 v8 R2 X. Y# V3 S E" e- ylet sum-time 0+ @1 @+ p L t; k8 O
while[i < trade-record-one-len]/ h$ J( A- t+ r6 m+ B: ], G
[
$ Q' ?9 f- F% I P% T. eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( a- M- c# G4 }+ V
set i
$ I' H3 D' T/ L* I' c4 ?9 h( z( i + 1)- R1 O- `) p* D
]: y2 E0 H% |% p" I% ~2 K5 v
let credibility-i-j-l 0
4 O5 J! x1 o4 z8 K' C; l' W# f;;i评价(j对jl的评价)
6 Q* }$ f2 Q" S& Xlet j 3
: I/ \; Z* ^7 U; Y) x/ H; n+ V+ Glet k 4; M5 z/ y% N: Q+ ^( Y2 `7 @
while[j < trade-record-one-len]
) N% H9 G! V+ J- \7 P! o[' F, [9 H$ \& j. [* H
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
) C, t5 F W- R0 d4 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)
( c* Y1 M- l; D% G* kset j! ?1 W/ T& w; E" e: s1 l
( j + 1)5 }0 \* p3 |. t" p% |: ~
]
4 Q! F% {; ^0 X0 I: }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 ))/ d% y; S3 D' m6 t
. e: S" w, D& T6 R' l J1 a+ |& L; k6 {/ ]$ T
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). x; G% [' b, g( e. e7 P
;;及时更新i对l的评价质量的评价- @$ T6 X" q: ~4 x
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" y2 p# N. o# Y$ E, Kset l (l + 1)0 x3 L3 r9 ?# J' E* a6 P0 `. _! i* Z
]
. u) ]) }( N/ f3 t1 k$ W- g3 c, dend9 n2 z) a8 Q! }0 ]. l( r1 E
# z: J7 }! ]) Y/ _
to update-credibility-list
, X# w3 z2 ~% {! [# ~" t( f/ `let i 0. ^& h' }" Z9 { [
while[i < people]0 m6 ?9 ~* Z$ r, W# a7 r+ y6 z, S
[+ ~1 Q- u# b' j) _8 A" ?
let j 04 r1 w: Z! e2 p p' j) G
let note 0
/ K( S o1 h- ^& A0 u8 f: Vlet k 04 d* U3 `+ F" B, {9 W( i/ E2 t. A5 e4 G
;;计作出过评价的邻居节点的数目
$ q5 V# p- }6 Z7 @" f7 D6 B4 T' _3 ]9 }while[j < people]
2 t. [- S6 L/ `' l4 K. w9 h' O[3 d2 z: A: f& A y) f3 J
if (item j( [credibility] of turtle (i + 1)) != -1)
- i: g) |, C# \3 F9 T;;判断是否给本turtle的评价质量做出过评价的节点7 n% ~1 U) e8 G1 }3 {! p+ P" j
[set note (note + item j ([credibility]of turtle (i + 1)))6 z5 A* I2 |) Y
;;*(exp (-(people - 2)))/(people - 2))]
6 J) s/ R% s8 _; Yset k (k + 1)$ q4 B6 t; O3 x/ ~) o
]
$ i) ~7 E8 F4 \3 Yset j (j + 1)
4 g; L4 _* ?; z- D: |]
+ A$ N. J# u3 ?! b' x4 Jset note (note *(exp (- (1 / k)))/ k)
% n9 i$ ~8 ]2 K; G. |( z$ Aset credibility-list (replace-item i credibility-list note)
3 {( v+ v" q1 T! w) V% @. rset i (i + 1)' v' y5 n" H: s; `$ Q/ Y S8 }
]2 {* v# y) W2 M
end% a: w: |5 m& S+ d) `7 D+ l! z: b7 Q/ J& i
$ P9 v# i% e) wto update-global-reputation-list, n. \. K4 P0 g2 v+ T6 n
let j 0
- M6 |: t9 }% B- r/ P0 Z7 n0 W; ~while[j < people]" t; Z. e+ \( z; G! c& A6 \8 q
[
6 B& h* ?# T0 B" B! rlet new 0
* V& b7 R( r' j% `5 \" j;;暂存新的一个全局声誉; c; V" @. {; G3 |. I
let i 0$ V) n. h; S5 C: Y/ A4 U
let sum-money 0
5 |( [$ |4 E, I" s) L; M, g' y- s8 jlet credibility-money 01 b/ C: M+ Y1 r2 L1 N
while [i < people]$ {0 `# C4 M k% r- j
[. ?" O+ b2 b( y4 x8 x, i3 B
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) X, Y$ K: K3 p- U! c6 [* ]
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' X+ g- G" P+ }9 L$ z
set i (i + 1)
4 `& k, m! z, }3 f]9 k* R4 ?) C. [
let k 0# B2 h; C7 S, ]. `
let new1 0
6 f+ G y. M/ F# y+ }while [k < people]" S4 m7 }) o4 R' W ~+ H1 T
[% U( q2 Z/ `; ]
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)1 Q* e( K" m8 [0 G
set k (k + 1)
6 l1 u% k0 C) x r5 G4 t]# ?& u/ C& y0 D& N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 q8 T% a3 J1 q h5 g. @9 C" R
set global-reputation-list (replace-item j global-reputation-list new)
# o* W3 v; G/ zset j (j + 1)1 c O) ]7 z6 f, G
]/ X& g: M8 y0 ~/ v! e* s
end
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' }% Z* p& K/ q1 y
% ~! q4 N+ W$ G: Ato get-color9 n- M" a2 ^3 R' E& x
& b6 g. x: Y' z
set color blue
# I; h4 ?6 h c/ G' P- o: [end/ \ E/ f# |/ U) V3 J8 ]
# a4 r+ i8 P: pto poll-class8 W9 A0 N1 h/ L \2 J
end: N2 ~7 d( ? o9 z0 f& ?# w E
, }# q. A2 f9 mto setup-plot15 o; v! Y4 m: h; _$ l0 [/ [
3 Z7 M9 t3 g9 ]) zset-current-plot "Trends-of-Local-reputation"2 C' \3 O/ a- l) P
+ }9 ]* y6 {1 q1 ~; m7 U1 B& N0 g Hset-plot-x-range 0 xmax
% t; }) g' \+ }7 j; {5 d' g
& q; V8 h0 }: {" i6 @. Vset-plot-y-range 0.0 ymax8 R' _3 D. h2 l; m: V. M
end
$ A, m, P6 _% @, H" [2 J5 j1 ^, |6 U, Y9 E. O% n) N/ k
to setup-plot2+ \% H% N2 w4 O5 O# G& ~
4 S( I/ u$ S4 {; N+ cset-current-plot "Trends-of-global-reputation"
; S8 b) x P: U0 t0 l
/ ^* m( Z8 [1 h5 a2 c. ?set-plot-x-range 0 xmax0 G1 q% o6 d3 u) w J* m: x
. M* u/ {. @$ Y: f. m" B o. F
set-plot-y-range 0.0 ymax
' Y) y. }' n @; \; l( |* Rend
& Q7 z- m2 k# v) l( [/ d) l& k' Z* U% Q5 S
to setup-plot3
' D; j5 D- ~ G
8 N4 A- D8 k+ p; oset-current-plot "Trends-of-credibility"
0 R h1 G. u. v6 w$ l+ u6 N: ]8 w# y, D: |/ E7 ^. |
set-plot-x-range 0 xmax
& b! H* C+ T# i# q
8 Y1 c' P! g/ d b* C+ k" R6 Uset-plot-y-range 0.0 ymax8 G& F h* s" f+ V5 {- t
end
/ Z0 W* Q3 x" Y+ c) p5 ]! M8 v2 P, ]. @" q/ @8 d5 G0 d: a* |2 |
to do-plots% s5 w1 S [0 Y& N
set-current-plot "Trends-of-Local-reputation"
T; j2 j2 N, ?3 tset-current-plot-pen "Honest service"3 J/ Z. Q% `7 o) @+ z2 T" m
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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