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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7 h, Y2 H9 v8 J3 K* l4 b
globals[
1 q6 s& V0 Z& ~7 g4 S- _# fxmax
+ H. \- X8 p2 [! D# w3 t# f* s8 Eymax
3 g# V: v9 V+ D( T& X |global-reputation-list+ a. a4 T+ k, {" B0 y( I
6 V4 X9 a, P, a8 w. S
;;每一个turtle的全局声誉都存在此LIST中
1 U7 `9 b' r% C2 t+ E) }& P8 tcredibility-list
7 j, r: ^% L1 D4 b;;每一个turtle的评价可信度6 t% z9 f( D$ C4 R0 P3 p; `
honest-service
* E: F6 K1 A) ~, zunhonest-service
( Z7 j7 Q2 \/ _oscillation7 ^. V+ ?2 Y5 N+ t# V
rand-dynamic
; l! J; Q$ o( A- C* E]
3 H, V% j* u. m2 L8 C7 L. m
v' m {$ T9 M3 Cturtles-own[
7 |# L6 O' @1 u* Q( etrade-record-all
8 x. N* V, s0 U5 T$ w- `" F* ?. E' f;;a list of lists,由trade-record-one组成
- C# g L0 j5 x. Y2 q( ~trade-record-one
4 ]! f6 ]0 `/ [! C- B% z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
: x) H! a6 Q# J- m# U! ?/ _7 ~1 `% v& P, G+ v& o& {8 C1 D6 Y$ ~
;;[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]]
5 P- y' ~% x/ xtrade-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]
5 o) q. }4 {: I7 P( rcredibility-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 x) q! z( u9 Q; Y% O. Z) q3 V1 Zneighbor-total
8 A8 R% L; p( _4 J;;记录该turtle的邻居节点的数目
) L' ?0 Y0 R( c( Ytrade-time
& d" m, d' K& Q/ l1 u; V) a;;当前发生交易的turtle的交易时间$ Q1 V# `8 q+ Y" _
appraise-give" e( f+ o0 R f
;;当前发生交易时给出的评价
, ~( Y" }& n2 X a6 B5 qappraise-receive% C* f! G8 K6 V0 P, s0 {* w
;;当前发生交易时收到的评价- D L0 ? o: P
appraise-time( I+ p7 `! ]& A1 r% S
;;当前发生交易时的评价时间- s. L5 P Z8 Z' L' y/ W
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 |( j% q4 a$ W" qtrade-times-total
: U2 @8 w0 z& Y' {4 [& Q# Y. I! U;;与当前turtle的交易总次数
U" Y. L( k b3 Y* Strade-money-total- V2 D' ~& C$ c- f# {: M5 P
;;与当前turtle的交易总金额
* o% d/ \4 n7 a l' D' |local-reputation* {% e" B* O1 N0 l
global-reputation
1 @) g9 C! X# z5 x; O( ~2 B% Lcredibility1 \7 E+ e* B9 z: B% F# ~, V% t
;;评价可信度,每次交易后都需要更新
4 X8 P0 |0 v* i0 M4 g9 s' |. R' F1 ]credibility-all3 B9 E* V5 H g0 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2 [& a/ s, \( M! ~3 F0 m- f
, w9 | u6 w7 {
;;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
& v+ F# X* \, q6 A2 x, f) ?& P Icredibility-one
7 E+ J& M2 w$ t. [$ w! O# 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) T' G: m* @2 k6 e4 J$ M2 n7 o
global-proportion
& ? f. x7 x6 [customer
& ?0 G$ L C4 Y, }- v* ycustomer-no' v0 W C6 }3 L7 V
trust-ok
& P: d' `! a1 c4 u+ r8 Qtrade-record-one-len;;trade-record-one的长度
2 ]7 ^) v% g+ c* t. Z; S]" S4 i+ J9 p1 Q! t, k# {
7 F$ x% X* V# k
;;setup procedure
0 k: A" G) c4 z% H
P- M4 r+ a0 X( M$ w+ Xto setup
3 d, c' U" d/ t3 }3 s* b& I8 W% E2 [5 W
ca
8 B6 l2 b8 K! N% r1 I, t
+ V6 g E/ B0 M( d# Kinitialize-settings
" `( r# n5 ] Z5 ~
' u' O# F. Y" lcrt people [setup-turtles]2 i8 \+ Y t0 t$ S
) ?3 y9 A! Y+ P, I/ z1 f8 i
reset-timer
* j+ G4 R% w" c* r
1 y: X7 w v5 X$ Z, ?# z6 F) kpoll-class
2 d6 F ^& R, W `* w
+ p. I4 [% {2 U$ Msetup-plots- s9 _6 r. J2 u
7 Q* m. Y* M1 N! jdo-plots1 ?3 r" ^: l7 _6 V
end# O8 x$ O0 G* l( K+ `- G6 Z" F
3 }% N ]- ~0 ?1 }
to initialize-settings1 |0 M4 Q0 ?7 d d9 |+ ?5 f7 @
3 N2 |) `8 s1 @4 |& q( Cset global-reputation-list []7 A/ z& \$ e5 K) [& ?7 |
* }% m$ }3 p# d* n. Gset credibility-list n-values people [0.5]4 p0 y& k: J# m
% r. z6 e, G6 f7 ]8 |set honest-service 0' D$ r5 w q. g
2 t% g. R' q# A& c1 `; Iset unhonest-service 0 f+ b9 k! {) N, c
# v7 [" ^7 s" Y
set oscillation 0
+ S3 x1 B( N: A" N1 X# N5 o4 C! [% x8 a
( k8 e& g% q8 l5 S& R bset rand-dynamic 0
# {5 Z$ P! K4 F8 w5 rend) W- ^& }+ g" w! p
& p9 k& m2 D" mto setup-turtles
: r4 p! @6 p% \; F1 u( @set shape "person"4 D( l8 a H% d% |# d+ A
setxy random-xcor random-ycor
- L# M1 }- y H/ W7 j8 X0 L lset trade-record-one []
7 [* e3 u2 x2 Z4 r' N6 U4 a- x. x6 M k7 Q9 |$ a& N8 P
set trade-record-all n-values people [(list (? + 1) 0 0)] & B' U# @# z7 v
6 h6 E' I' }# e U( [
set trade-record-current []
7 C; {. b* R$ R* F& E" _) Dset credibility-receive []3 ^+ ^2 Z' o' O! A
set local-reputation 0.5
1 {' Q6 g0 ?4 D- n& r o0 w: Mset neighbor-total 0
8 W$ [" [) [; B- Y+ H# {set trade-times-total 0; x( F9 K" X0 `. j _9 }4 e9 S
set trade-money-total 05 r9 q) ?. D* W& P: [8 z% i1 Z
set customer nobody+ H8 l% n5 Q9 x6 z; v
set credibility-all n-values people [creat-credibility]
, Q* ?- m. Y$ d% eset credibility n-values people [-1]
2 W; j/ P/ b& M- X9 s9 e/ W1 Jget-color* n) D7 O9 n- g! ^6 U& Z
" G2 T2 l B" hend
5 x S+ H; W9 D0 |1 n q$ x7 ]; f
to-report creat-credibility; W7 O6 g6 X3 [' \. m
report n-values people [0.5]
D5 i5 t. u) _( {/ I7 R7 nend4 q# X7 H8 n- v J# q" ~
7 O" l2 x8 K- x4 `$ }% L( jto setup-plots
/ n/ I" Y) S f" b/ p4 p# Y) T, y. ^, q/ N: }. \% V9 i8 A: Y
set xmax 30. q7 Y0 G1 M, Z; Z
' O8 r F: h8 s( w
set ymax 1.03 `/ {. l' ]1 q/ X$ ^
) j* u2 z {+ w2 ~- B+ Jclear-all-plots
: u6 Z. B3 e: ]/ Q
6 l4 z6 e0 n/ ~. l% j6 O$ B7 r; i+ Bsetup-plot1
) f: d) j' R/ T9 t! D& z$ U' V4 e
8 v, N% b0 \/ l$ k& y6 w1 Csetup-plot20 | L6 P9 G2 @. B. I
3 p8 n) r- ?5 J* w2 M; J
setup-plot33 b {" I1 e' \' P
end
* H8 G/ ?2 o7 T
_2 y1 L. m& U;;run time procedures
( \) d* w n; _. c: Z4 ~& n
- l2 u* m2 e% [9 jto go! C+ I- f) U0 _' j1 m
# n, z( p6 c1 L# Pask turtles [do-business]
$ R3 d) z" _0 \6 S0 J: O3 s# Dend' {7 d; {/ p% ~- ~) B9 l! {
; i+ x$ e% q+ w: |$ mto do-business
# a% j* S8 \) a) K
Z% P+ M2 x1 x$ n
. T. p5 _! C. k- j$ yrt random 360
" w6 z' ]) |/ h/ u8 I, _: V# G! o" w6 M+ X2 X
fd 1
% ?. H/ Y3 F) X, @( I
( _6 J6 ^" O2 q) J8 @9 \2 q9 P6 ~ifelse(other turtles-here != nobody)[
. G# w2 V- g& ?1 l" {' S) }4 I5 O% T& r7 u# `( I: G! ~" _ i
set customer one-of other turtles-here- p; F1 T2 s4 u) Z/ Z
/ A$ L5 T- m+ u;; set [customer] of customer myself, W: N9 M. u7 T5 E# D- n
; A! y: @# w+ X9 L1 f% x
set [trade-record-one] of self item (([who] of customer) - 1)' ?) t$ E8 h4 i- m
[trade-record-all]of self
: G$ Z3 [( Y" E1 [( ~7 E;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: N7 ~, d/ b2 @
, |4 ?. L0 G6 {) p6 \4 gset [trade-record-one] of customer item (([who] of self) - 1)
1 j& z# r& q, v# t[trade-record-all]of customer- Z6 ^- z% N6 `; m5 m8 t- ?
8 \$ B1 `; }% V0 m) O: @set [trade-record-one-len] of self length [trade-record-one] of self/ @% s, r) B* A/ R0 V! \/ _
4 \# y2 w0 U$ l
set trade-record-current( list (timer) (random money-upper-limit))1 g" T/ z/ V' j. f7 J- |
: m& k/ h% R1 y6 p/ T; K0 u
ask self [do-trust]- C1 s! q! t2 u! @) C# Y
;;先求i对j的信任度; I: t+ C% [( Q% e
0 C' G B/ B7 r
if ([trust-ok] of self)4 h2 f! d( C* R$ m* ^
;;根据i对j的信任度来决定是否与j进行交易[
% }5 V7 @) v2 d+ Gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
E* K A# J- O0 p/ K* k1 E7 e. W+ R/ {& |0 K' G0 s- V0 k0 ?6 S
[" z. N' z5 U0 x3 \9 I" V' d* c5 p6 r
8 R5 L3 F q# N% bdo-trade( ?1 {9 } p4 W. y: I0 Z4 \
5 ]% r% V# Y5 P" ?" B$ P2 ^4 R+ bupdate-credibility-ijl
4 k. ~3 q* J) m% f. w i6 H/ e
" W$ W/ `# l* |$ E; g4 ?% Y+ c4 K6 z1 Rupdate-credibility-list$ h/ r# n: V8 M% d) x
2 w0 _/ f/ O$ v+ m' \* g; ?- X/ w+ P$ p" L
update-global-reputation-list) S" m1 D; J" s$ D' [. t
$ a+ f2 J1 Z0 u
poll-class$ w* G0 _' | s- D: ^
5 H! H/ d5 Y* q3 s o( M
get-color s! p& N p+ ?: ?
4 k s3 K, r) m1 {5 G8 ^' K
]]: j8 N/ _* l9 E( e" e6 o
/ L0 T7 m5 L [: B( D4 J
;;如果所得的信任度满足条件,则进行交易$ x" m5 G5 g% I6 j- I8 @! l
" V& T( p' g' D. Y
[
( I6 C3 `5 `- G4 @! L6 M7 O! d) x7 ~0 ^5 \' ?6 g& T0 `: u5 b
rt random 360 p* k l t$ z) S# l# Y. X
) f* e: a! ^: L0 D2 H6 p
fd 1
% f2 a- e$ F' ^+ w [ e3 ~. U9 R8 x! e F M7 g
]% A, G# [# b7 w
% J; x6 Q( X, E0 O. O
end% b2 @8 Z( `# T4 u/ {8 w
! j5 r" [, d: G2 h
to do-trust 1 ?: H- }" Q# W. b! D$ N
set trust-ok False: T, R# o5 W3 U9 v# Z
4 N1 A" U8 Y6 z4 n8 j8 u+ W. H5 `( V0 [' Z' t
let max-trade-times 0: T. ]& l: V0 K& e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# s7 |# h& n' j8 |$ e* ~7 u! H9 Dlet max-trade-money 00 Z8 Q: T5 ^% w/ o5 ~: t2 S
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" O# d9 s4 \0 x8 V" M: z3 q
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 O/ `% h; y: R! x. F. G
6 Y4 s9 S- r+ o
' l8 X$ ^, S+ K M! {& I5 p# T! nget-global-proportion6 t/ q! m0 y! R2 n- y
let trust-value
& K6 b% X( v- @9 _* s1 Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
7 q2 ]3 |6 A' I' ?3 ^ u! G% w. M! fif(trust-value > trade-trust-value)
4 L4 E9 R' |$ o[set trust-ok true]
: E# S4 ?+ Z2 x$ h, ?" Zend
( S; C: j* _4 F: k/ i* F1 F9 [, V* Y# }
& d0 @) ?$ W2 c$ |1 _6 t! `to get-global-proportion
& V/ R: k) c' m; U: Z, `ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
, Q! Y9 W3 ?5 J, D[set global-proportion 0] s" R p5 J! E; B! O" m u
[let i 0
4 r9 X- k3 y! Y3 s- Vlet sum-money 03 W- e# ?* f6 q
while[ i < people]
9 |; Q1 N1 Y" [: G[8 v; P V) F( k4 m& V! o* X
if( length (item i
0 G7 d5 Q0 q; I L[trade-record-all] of customer) > 3 ), J6 j/ K! R( P4 _
[
6 `1 }1 z" X" vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. A4 w1 r3 [: n9 S3 _]
8 R! p b5 h7 _ @, e]! Q+ Y7 ?. h5 M M, ?* H6 w
let j 0
2 {* G3 [: @% b6 r- m& Rlet note 07 o8 K5 n/ d4 g1 G
while[ j < people]
) F( w) ~2 q+ v[3 _& F: F% m5 D
if( length (item i
# l8 G L, I7 S h0 {[trade-record-all] of customer) > 3 )3 s- _( \" s* p$ s/ M
[
+ r4 {0 k7 \# c& V |! Bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), H, ?5 w$ W4 j& ]4 _" f0 [. {/ g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( C, B( x5 ]0 i# B; H9 {' N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 g. e6 e3 p4 \- I: ^]
o" _) L0 [% K2 M& w]
, `4 [% f! [1 F. m$ dset global-proportion note
6 P) q# n: @$ v [5 h. c]
7 G2 C. V7 D7 Y! r4 E N) kend6 O4 @/ c7 B9 D0 O% z
% v; H r% ~- b r
to do-trade0 N$ a, U0 G! D- T' G
;;这个过程实际上是给双方作出评价的过程" ^& }# j4 o0 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 c6 Y- J& a2 n7 |, |set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价0 x5 D; n! l% f! g! {$ }9 Q
set trade-record-current lput(timer) trade-record-current9 V1 Z3 e/ @3 }% w, p2 n, ^. u
;;评价时间
1 a9 z; M0 W1 {. Sask myself [3 O5 H X4 G" g; Q9 i/ z, m
update-local-reputation
1 i( |' ?- h& V9 T8 jset trade-record-current lput([local-reputation] of myself) trade-record-current
?8 a3 j: g6 U! I( \% z" f/ y1 }]7 Q* I3 o" Y) D* c& C, C2 k- Z, f
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 O T$ [! c% G, w! t6 N/ X+ c;;将此次交易的记录加入到trade-record-one中
+ y) ~3 r0 p# a+ K7 gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ T$ |( i5 M7 Slet note (item 2 trade-record-current )- J6 F4 b! j7 z1 I; u) c0 W6 {
set trade-record-current% [! {- C; C3 x0 n; J5 z
(replace-item 2 trade-record-current (item 3 trade-record-current))
' p, t/ Q9 p# i& wset trade-record-current
! k2 F% t" A# u0 ], @(replace-item 3 trade-record-current note)8 p3 f' D7 m7 U$ i# C
) k' T! O# W" A+ V j+ r
* j+ t+ K) t7 y5 P/ I4 a! u4 Yask customer [5 t c6 L) q% F( q
update-local-reputation4 z* i" ^ a6 T/ {% f$ G7 V
set trade-record-current" ^- w' l% w+ V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & y' H& \$ f$ g1 m
]
: b9 L: n" i5 P. b# B! L. \: ?9 u) x
3 B7 s& l0 n1 U' k+ m0 K& j; i5 w: k" P; n8 a
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ M) P9 n9 j" A5 u
" L! q }6 l! R$ x3 wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 L/ }% k( }& \7 i;;将此次交易的记录加入到customer的trade-record-all中' x# Y7 {/ P1 A2 h6 f, R' n
end
( |, [1 O" M, E9 `) L Y6 V/ i3 |% o2 E" x( f6 \
to update-local-reputation# r' Q# M5 L0 }' k2 }, w" N
set [trade-record-one-len] of myself length [trade-record-one] of myself
) a+ _* H" J# ~6 Y }- m
5 j4 B6 K1 y: G, k/ m2 S2 o# l
9 J% L2 K6 w( T" u1 D0 b;;if [trade-record-one-len] of myself > 3
% G- B4 N; I5 Z" R" r; N+ D: Q. Nupdate-neighbor-total
4 U+ }9 W* K1 r/ e r5 Q! X& ?;;更新邻居节点的数目,在此进行
6 [( s& ~# h0 I- z6 Clet i 3
9 x/ _) g$ ?2 E3 ]- D2 Vlet sum-time 0/ @1 a1 Z9 [" B5 {- |+ P# k6 [
while[i < [trade-record-one-len] of myself]
4 E, B, J$ {( l- t9 U[
$ U1 a: Z/ y S3 E' O) e ^0 i3 nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 }* o8 |8 q( u( f/ ^set i: V! h- {6 t4 {: O- Y, R
( i + 1)
) V% \$ I3 K: o* ^1 ]! n6 i, g& p]
% I% j6 n+ G/ O0 H: Y* T+ }) C8 Slet j 3
: `7 [) U+ I. B$ ~/ H! Jlet sum-money 0' o7 [7 b J: @1 Y n5 R4 s
while[j < [trade-record-one-len] of myself]& s, ~2 s: G- }. H! _
[
6 b; j; _7 r+ g" o& j& h' e" aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)8 }' Y8 ^4 X2 o
set j, a+ v# A' x S0 x/ g
( j + 1)
+ m" R: Q6 b }. e$ U7 e# {]
) d ~$ T0 ^$ H6 m/ E( |let k 37 S0 r4 ?5 u( j1 }# k1 s0 Q- _, D: X
let power 05 O8 w# z& J3 }2 x+ ~- `; h/ e
let local 02 J' j" Z# a$ S W* {" \5 E x F2 K
while [k <[trade-record-one-len] of myself]2 N: t8 r8 q( j+ [) @' N
[1 y3 H+ G4 J8 J% X0 {
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) % ]: t! z5 t4 @% ]. ]
set k (k + 1)! W* Y3 }3 Z6 k: G. f B
]3 P8 @ s, g) _* k8 w& J, f
set [local-reputation] of myself (local)8 B! L5 }# _+ ^2 c
end# I3 {! z; y5 G; f9 P' B
9 G. P/ N% i: p% ~8 o
to update-neighbor-total
+ L E! F* }) I- Y7 ^( C2 E
0 b) j- F% ~$ Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! l2 g1 O* h- c& B
4 A3 {* B) V6 h% ?$ d+ Z' |0 }
5 W4 C3 ?* G2 W; s# @" zend
9 G+ Z$ [3 i8 }8 N& `9 {5 M2 P7 N
to update-credibility-ijl % q+ U/ B& ?) L4 P" k' D
% @4 p. F2 s; A; `* h) 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。" b: X4 E9 ~: ^+ c! `! R
let l 00 ], v5 P' z/ m3 j+ Q
while[ l < people ]- O' d; U+ O0 @! ]% U
;;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+ q/ _/ @& Y2 _7 ^& k+ ^9 l
[
$ t4 O7 o' |; [% Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, S; Q1 y# ~& }. J: b) \7 a9 Rif (trade-record-one-j-l-len > 3)% N8 }" n# _! J) E5 b
[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' v1 }( x& ~6 _8 v7 Z6 }
let i 3
/ d# y3 c* s. ~7 E: glet sum-time 0
W; Y( e' h1 z; Zwhile[i < trade-record-one-len]
) f- r7 ]2 Y }+ U y[
9 n$ Q8 n4 K2 |: L( e5 ?% @! ~% y* wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& _) p, v) u* {$ j) aset i
' }1 V1 A5 l' ~0 Z9 t. a/ y( i + 1). I% X; M1 I6 W" x' _. G
]
& p0 z" n% ` dlet credibility-i-j-l 0+ g- \- @- `4 j& s& Q! R
;;i评价(j对jl的评价)- ? | i+ a1 H# S+ M) j1 h. K3 J
let j 36 w5 X2 d7 i; ^+ w* r
let k 4
+ Q- p" C7 m; o b, I% Nwhile[j < trade-record-one-len]
( S; V" F+ ?" t( n" P[0 P1 b7 r* A! T k V
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
) P9 n. d8 s+ jset 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)
# ~$ y, k8 ^& Z3 K+ W/ ^+ dset j' N. M+ q# [3 \6 {) j; k
( j + 1)
# q1 Z% y: G" T6 w5 ^$ |- {]% S" E: M; x9 N' P3 \9 D: L' u
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 ))+ r. l& {8 @2 n, d
, {; c8 L; k; s7 @8 T# U
2 N0 S/ q% L& t& olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 q- }; c6 I, B+ G! m+ Z;;及时更新i对l的评价质量的评价4 v7 {+ u p0 U1 \$ e# F2 }, q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. J" G! R6 O2 ^set l (l + 1)
! [8 M- J6 N: [+ B7 _]8 r7 h# f) a1 G+ W+ a2 s$ N# l3 X$ U
end
) h. x& Y3 j0 _8 F+ f
; e# E; R4 K' c$ pto update-credibility-list
g) D5 Y$ ?6 g% C7 T. Wlet i 0$ Z: ?2 `. q% e2 Q8 Z0 F
while[i < people]
. a2 N4 @7 Z/ ^ c* W" q. {! B[3 h5 q& `7 _+ a) L3 E1 e
let j 0
. H. W: b+ H' Nlet note 0) Z- C ?9 f& n, d: e/ g. J
let k 04 n' S3 I: x. ^$ D& O2 n' `9 h" _
;;计作出过评价的邻居节点的数目
$ \1 s% B8 T3 l6 Wwhile[j < people]
" i% V2 A0 L$ @[. R @& g+ N v% I& G
if (item j( [credibility] of turtle (i + 1)) != -1)
, G% Z8 `( d7 Y/ o;;判断是否给本turtle的评价质量做出过评价的节点
9 ~. X7 i7 A1 b; O \) s[set note (note + item j ([credibility]of turtle (i + 1)))
+ K: R0 P( C4 F, S$ w- e# e# q! z& Z- O;;*(exp (-(people - 2)))/(people - 2))]
; B/ H# r, G' Nset k (k + 1)$ {6 x+ w1 N; B6 N8 d0 u
]/ N) F5 u' ]6 x9 ~
set j (j + 1)8 M& k6 B, j) @1 c# B
] }2 s3 ?& r$ P! t' ?& l
set note (note *(exp (- (1 / k)))/ k)0 ]8 E. B$ N7 }9 Z+ e
set credibility-list (replace-item i credibility-list note)3 f g; v( u @2 ^
set i (i + 1)* o2 G8 S* R0 V# E5 H
]; O7 z5 u0 C3 |: u
end& Z# q( E' E3 j( {' X& `+ L; S* `
$ C5 t6 A3 f( P
to update-global-reputation-list/ j1 C! U0 b* b* {. F0 W6 t4 [
let j 09 {+ E+ p+ d1 L2 q
while[j < people]: u' l. S. y- U. B% f/ U
[
! g& J) j" a; x$ _let new 02 @& w7 B; D7 W" {
;;暂存新的一个全局声誉
- p" V9 v! D% \1 z6 D" w6 _6 |; Olet i 07 \! E. o1 U( n
let sum-money 0: i4 N A+ a3 k$ r/ b. r
let credibility-money 0
3 F3 z1 l j* twhile [i < people]9 z: O$ a8 J1 ~) m# }9 O, z+ _
[' o& g8 }8 f# N% S
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( V' V) A3 G& \# E4 K& Q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- m) I2 l& y# n' c# t/ v) a: V9 Fset i (i + 1)
0 G& j1 r# ?) P0 E0 t' ]! w& w]
, z6 n$ d7 K O; ylet k 0
0 v8 \* T% v" C# f, c- Zlet new1 0/ e; n' }) d9 |1 i# e2 @3 S4 G
while [k < people]
4 |. R U l( v! k4 u: U. \[% d! U5 @" C( r: E0 M/ a) J) g( Q
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)
3 I; ^5 k8 ?1 i* C% g* Y" Iset k (k + 1)
Q1 ?. Z% A4 f. \- D, o) J]9 m: o: [: O- q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % }: n& L9 d5 i# j. @% p8 D) P
set global-reputation-list (replace-item j global-reputation-list new)) k% V3 c z7 V7 R& r9 @9 o
set j (j + 1)7 D: A* H7 E# E; a
]
! r: V0 B4 L2 u) T2 Aend
4 B$ b' O+ X( @ f
# ~& n6 r1 u- C5 @1 Q4 ^" n# F3 T3 H7 w+ I1 f
& I2 M4 C' Q" E A/ qto get-color$ b: \; {* g5 f
2 x3 x$ ~) ~/ F& f& e( q7 Xset color blue9 I- t1 A) [8 ` @0 _8 W; \
end8 E( X8 F8 {& E
. ~" |" V+ T& O5 i+ a
to poll-class
7 [/ Y7 o d1 c2 m$ q! F0 Uend: L* S7 ]$ ~1 R, c; z
0 ^/ h% _5 Z; Wto setup-plot1
( @9 w8 o& _% _( n& D9 K: q! A7 q8 T, N
set-current-plot "Trends-of-Local-reputation"
& }9 U$ j9 b7 z2 r- |, ^4 b& K! }4 M
set-plot-x-range 0 xmax3 ^4 V& K* E. r, H t, k$ J
4 ?# y7 Z9 [1 M* [" l8 ]& S1 G+ Hset-plot-y-range 0.0 ymax) x0 C' G0 q/ G, A( z1 {
end+ [' M o* }: ?* s
$ @' m3 s% r) m$ T1 ^1 B1 }0 dto setup-plot2
! k5 k& _' A2 G" g* {- w" k
! }8 W+ p* n* I5 L6 Hset-current-plot "Trends-of-global-reputation"7 J- o, }5 Q9 a6 v* P8 u# [7 F
/ x( F+ f, N# `5 Uset-plot-x-range 0 xmax) `. V( Y. a7 N4 p
; b, l9 j, T7 B5 V% Y: g6 g4 c9 Zset-plot-y-range 0.0 ymax
5 }, Q8 r9 u4 n5 Z% s# H: [7 \end
3 c X; o% [$ m+ I5 M
' M( r# d2 ~' xto setup-plot30 Z( k: D2 Y# {) z3 S. t
0 A* M' W% W, }5 J. M) pset-current-plot "Trends-of-credibility"
# o. b6 x! \* D Q7 C+ U$ |" {2 _+ X) `
set-plot-x-range 0 xmax1 R' _3 K6 N" {# O! j: `* L) G
' H$ D ~$ o/ P! Q! H: c
set-plot-y-range 0.0 ymax6 q7 n1 x, [# l' ?6 j4 H. o
end+ e3 ?! C5 \- k9 {3 \ I! k* f
. k0 g) v" |) @0 m8 ]. M: [
to do-plots
' G' i% B) K1 Q9 O4 tset-current-plot "Trends-of-Local-reputation" |" Z, S8 i, X) P
set-current-plot-pen "Honest service"
6 v, g4 o8 D7 Y4 I4 i- G, R- eend8 O6 ~& O& V {: a7 r
4 g5 r9 P5 Y' m" ~" T* o+ h( S
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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