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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( f$ A! ? ^2 A* u
globals[
; A1 c8 C: |. r( O) |7 b! }9 O7 ixmax
1 y& T4 [6 P3 p' Z, _7 d$ Iymax
+ I; x4 K. V# q/ E$ k# lglobal-reputation-list
4 H1 i; _& o6 H# P( t s
* x$ G/ s& _6 l1 Z z;;每一个turtle的全局声誉都存在此LIST中
/ l' Q. d7 _" [8 Xcredibility-list2 t: u7 e2 I# I2 }5 A2 `$ S
;;每一个turtle的评价可信度
. g& u4 i. ?$ ?5 fhonest-service9 i. H! a' x" r9 F+ {
unhonest-service, }- C2 c, {8 z( Y0 K- e
oscillation
# I, U) H# a- Y- B2 @2 Rrand-dynamic- @+ t1 Q) e" V
]
6 A3 m3 ^) s" ?7 l- K4 M
) }: W+ i. [3 x+ J$ xturtles-own[- h K5 e) C8 _% ]. H0 h
trade-record-all
4 Q, H# C7 m$ G% K1 D;;a list of lists,由trade-record-one组成
( h4 p- @) e5 _& Wtrade-record-one
! Z N: E& h- y' ?% k;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; @- E/ ^% m6 _/ m
1 Q5 F- l' x% {;;[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]]1 H# v3 A2 Z6 G) I, Y |
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* B: ?& E$ G0 s1 O
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 v# N, @' j, c' C, O
neighbor-total
9 E/ H, G/ m: x/ H1 U/ c;;记录该turtle的邻居节点的数目
' l. G+ I9 x+ `, @! Otrade-time! n0 z% m5 ~" ?% G; t( H
;;当前发生交易的turtle的交易时间
; R4 M) h }8 @9 s6 {appraise-give
0 d: R. {% a) q;;当前发生交易时给出的评价# p q1 D3 K8 b7 O
appraise-receive: J; q; |4 b* x, j8 w3 f: w9 M
;;当前发生交易时收到的评价
8 G# r5 [0 U. ^5 U0 {' q* mappraise-time
; ~' B; q9 H/ ~, {9 T. y5 J. l;;当前发生交易时的评价时间3 x/ O' E9 r9 t8 U( [* k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉% `! f4 E2 }3 ?+ U H! W; i
trade-times-total
/ X0 b( `) c( J5 R; X4 G;;与当前turtle的交易总次数
# W! _0 i" D6 ftrade-money-total+ e' ~3 s) b3 a
;;与当前turtle的交易总金额, | a' c u/ l) S. P
local-reputation/ n/ a0 o5 R" _( E
global-reputation
2 b3 P5 q( x) F7 _4 B' Ycredibility
0 M& I4 r0 g6 R;;评价可信度,每次交易后都需要更新% F6 W) n+ I0 c- z1 ^1 `( M% K( S4 a
credibility-all2 m, v& y0 f2 K4 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3 N, ` G% g' M9 _% \+ [2 o5 m* [; f9 b
0 T& O4 h! l. a" ?/ q& I& c
;;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
) p8 w) ~4 Y! `9 b# k) Scredibility-one
' `0 U4 N+ ^6 d;;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
q) E" z6 W, c7 j& t( I2 Mglobal-proportion2 m+ ^+ m0 B+ Z; l# q
customer
$ Y# o) G- h9 Fcustomer-no
5 i4 ]& k! H% `) Btrust-ok
T( k& N% g2 C3 w; \! `trade-record-one-len;;trade-record-one的长度( L4 ^' a# u! r5 S; h8 Z9 H8 Q3 S! p
] d T) c1 t# v5 D8 H
2 [& N3 _# o: C' Z o, |$ |7 ~4 s
;;setup procedure% Y: X" E8 \1 A
2 h6 j! b U& H7 n/ P
to setup
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ca. t/ ~' U% s1 R8 Q e: t8 c! R
- |2 n5 U+ s/ w' k' `9 uinitialize-settings) E7 U+ R7 v8 V1 A
4 v1 I* `, f( Y8 N+ ycrt people [setup-turtles]
+ M/ X9 X" Y4 S7 W9 k( D8 P/ g! Y" o
reset-timer$ w% d- {& \9 m; {# K
" }+ p2 r. W/ c5 x& Vpoll-class; z* l6 X$ j: Y3 ]' y
3 M: X+ ?1 N; o; c. X" s/ Y
setup-plots
* N. Y; `' ]1 r; [" j
2 v" z) U: N1 }; O! W' @1 X8 Ndo-plots
* h1 R: v7 W( V9 \4 p6 Vend
. ]5 M' J" L# D# n% u1 Q2 m% N T6 c1 }( N' Z( p5 b
to initialize-settings
4 p% m3 r3 P, q- H
* p# c) r0 a0 p I" c" E# }, kset global-reputation-list []
; |' `% g% H8 J
/ z, i) v1 c( [; Mset credibility-list n-values people [0.5]8 R# g c& O9 M4 [* D, b! O
8 H; ]# Z4 K6 F5 j0 ^) {
set honest-service 00 _3 o+ ~) p$ R5 a) r1 T b
* H3 V0 B* B, E8 b9 l* l# S
set unhonest-service 0, m( _% E8 G* i
$ b3 ?% E6 }0 \& l2 jset oscillation 0
0 i$ U, B" ^7 N$ ]& K- Y; v
. N" Z' F$ t( }' A. {& j9 ^& x5 m7 F& Nset rand-dynamic 0
) A0 g) [7 N% }0 Y" Hend* k, y& V' R! x. V
; }+ |: e1 t/ |& v3 J8 }2 |
to setup-turtles $ {( O% }: {$ l) K; I
set shape "person"
2 f& _$ v" U* i6 \" }: x9 E6 ^* M" Dsetxy random-xcor random-ycor0 v9 l, {$ e* `6 f& D2 e0 z& z' P& R
set trade-record-one []2 _8 z7 w1 C; i1 Q5 W8 r' v
4 z: d, Q) i* A- \set trade-record-all n-values people [(list (? + 1) 0 0)]
8 t; @8 ^& I/ @
! Y% \ j/ l* g: y0 N Sset trade-record-current []4 a+ r- d/ Q: V" g0 p# q* V! P
set credibility-receive []+ m5 r, T3 r ?8 c( g! g
set local-reputation 0.5
5 o( }5 x- V5 ]3 Cset neighbor-total 0% r! t- M2 Y4 j$ x2 S
set trade-times-total 0
2 f% b4 Q- O7 u4 I$ K4 f& Rset trade-money-total 0
% F$ M: f1 F: @8 wset customer nobody" ?# Z( g' m5 Z3 |/ Q* g7 s' S
set credibility-all n-values people [creat-credibility]; s3 h9 Y- A" i9 G2 ~
set credibility n-values people [-1]
5 }% c! Y7 ^- Q8 iget-color
( E" ~' Y R- `" ~' x( J" S- A( U7 L7 `8 Y
end
, w% S, R' b f( m1 S& w
4 g1 o4 W4 ^ t/ ]- J% O& Eto-report creat-credibility- c; s! y' Q6 x! n5 S
report n-values people [0.5]
4 M9 @; L7 R q+ ]) ?8 Vend
! ^$ ?" ]; E" y3 r, K
! M- ^7 G' x( x! y* {+ Z3 Gto setup-plots4 M9 `1 j3 i: @$ ^- T6 d
" @: i2 X Q+ s# z0 g; o- u6 c$ y
set xmax 30! i: W5 Y3 n( D9 B/ q0 V1 ^
( F' t1 ?/ o6 R( Q. q+ I
set ymax 1.0
# `& i) m/ K7 y7 z7 n$ A% K; M3 C% S7 Q
clear-all-plots1 I& e7 S, A" J: E) M4 g
, V* m6 D: _0 ]2 ?2 A" D, {
setup-plot1
) N1 ?% w' K+ W9 O4 {6 ~- z
2 p s+ @) O$ c9 h" {- ssetup-plot2
% R+ I {6 a0 p# O
7 b& e1 @1 e( G: V, Rsetup-plot34 J3 [2 v. }0 H5 {
end
5 c2 ]( }5 K- P# }6 H) {: E2 n. n* `
& Z. j. f9 F! U5 a1 B6 k;;run time procedures4 V! o+ R5 R# o% t' E% z' e
: {! {! c+ {2 n/ ?) Y* hto go
. w' B2 z- f& r% e! ^
/ n. x7 q7 O5 Z; E" J/ k2 U' Q) cask turtles [do-business]4 s* m0 F! K1 b
end
$ [) a8 f; ]5 X! W& y A
7 C6 O7 \' z- n# K: Ato do-business
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1 E6 n3 E( v. x& s0 K( X! N0 l# S; P0 e2 M1 S Q5 \. D6 Z
rt random 3600 {5 K+ r7 P3 o
4 ~+ _9 s( U' k# q$ sfd 1$ D5 P5 ?4 L% C2 W% d( d+ ~0 y1 \
" T7 ]3 D/ o9 K9 d$ [6 ]' I1 M
ifelse(other turtles-here != nobody)[
0 ]4 ?# K& E% u9 B* Q) ^' n, q" W \8 k+ N# K
set customer one-of other turtles-here" l4 w/ ^7 \+ R" I; Z/ ^
- o+ _% O; M( D
;; set [customer] of customer myself# G6 Z( I' |! P7 c6 S h
. X( ~ }3 ]1 C6 B5 { E8 Rset [trade-record-one] of self item (([who] of customer) - 1)
( _# H3 j- y8 F3 c& o4 ^[trade-record-all]of self
& s: x) `6 q" `0 I- {! i6 ~4 {% f;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! f1 ]5 f; R/ ?
& @. ~$ H$ q) Y! U# `# B
set [trade-record-one] of customer item (([who] of self) - 1)
9 Z2 U0 c) m% R9 H! a8 J8 g; }; w. ?[trade-record-all]of customer
+ D$ L( F g7 H% b8 G. {! t
6 e; v! F4 E. x7 G. ~set [trade-record-one-len] of self length [trade-record-one] of self
T; T. s+ u6 q4 A* f, D G9 V2 E% E! H
set trade-record-current( list (timer) (random money-upper-limit))# R: s" j" r) C# n- W# Q( z- [
' [) }' V# Q, E0 aask self [do-trust]
6 Y v, f+ L; _;;先求i对j的信任度
4 X, m3 L# Z2 _1 B- q* K: _) Q7 I; s
8 Q6 H5 Z. N. j1 L& m9 h- Sif ([trust-ok] of self)
, _# C6 K9 f- k' _, P' V;;根据i对j的信任度来决定是否与j进行交易[
- L5 I! d; L. Eask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 p+ B, Q; u$ A0 b- |
& S" ~& h+ b( M: b1 X/ s6 ?
[
0 @6 S. X% a9 x
3 O' y _# W, C; |! Tdo-trade
- ?1 W" W7 i" s( Y _" l j5 t7 w" W- [& Q
update-credibility-ijl& g! }, c; ?+ M+ i. i
8 B. ]) s$ H8 S. u8 ]update-credibility-list
- u9 m! M8 G2 ? n8 l% f. F- G! D, d
5 W9 t( X- U7 j/ o: W
update-global-reputation-list
+ U' \/ D2 E1 }. w* v0 W; F) Z8 i
, L' d" J+ m) g% m" w+ Cpoll-class
- L/ }1 d8 a" u5 b% H1 z+ w6 W* F$ m6 x( |
get-color% }8 v: [0 `$ i4 _; R* |
2 i/ e( J8 R! S$ v]]
0 `/ P. U* `2 X. [- e' j9 L# j) ~! ?3 }6 ^( N: o+ R: o. _" ?
;;如果所得的信任度满足条件,则进行交易! V! D# H" j" M K& d1 v0 b/ n* J
1 J& x) e! J# \* E( v+ {# I[
( m8 @# d r ~ ]1 n/ P
7 {+ r8 b% A+ |0 grt random 360
5 k" r' Y0 f% u: v- F. l
0 J/ k9 W8 K3 w ~& hfd 1& m, B7 a; m0 [0 z6 W' K& N
U5 L# q; B3 W" p]
4 A U A; \- [, B% x3 Y+ w9 w; j- s: s+ Y2 B2 \* p5 R. C% X
end
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* Z( i- z; s7 J/ H" E2 qto do-trust * j8 p( d' b( @0 ]2 g+ v1 z
set trust-ok False" |( `1 c3 _' I% b, e# T! z& w. X
7 P2 i& K/ L& Y% a! [
+ C1 [. L7 `9 d6 Y: e4 y
let max-trade-times 0
" ~0 `4 c q2 Fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 k: y" j; M6 y+ r: C5 @/ [let max-trade-money 0
: B% e) L! ^3 N H% h! \! |" Q Lforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 B; G8 [ S+ h0 v& C7 f% L
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 q% \/ l2 e7 J* ~( a
8 `: U& F% \1 w' E) ]) I+ J1 {7 u$ |# L
get-global-proportion
1 @, m T2 x3 q' F$ Clet trust-value
4 p! o5 @/ r3 O9 _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)4 P" l$ j' P6 A. m/ {
if(trust-value > trade-trust-value)
7 L, y7 `6 f9 q5 P' Q; Z0 R% ~[set trust-ok true]5 U/ K# R7 F& L4 i5 L r5 t
end
+ A5 w# \& R/ r8 H3 s2 [2 t
2 J5 g* U; z; H! Yto get-global-proportion
6 q# x4 ^/ P' ^ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). N* D& j( p% O8 h0 {
[set global-proportion 0]
- V/ \+ k) y7 l; o[let i 0! k" |$ W" E. d. W/ n5 T. Y
let sum-money 0
|& e2 S2 m* k2 n7 \. |. D* d( vwhile[ i < people]' `& S+ J/ E r
[
c5 |# i$ N0 J) Z5 F" i$ Gif( length (item i: ?+ f a! {7 J( H$ H2 D. e
[trade-record-all] of customer) > 3 )4 v! n/ p1 V% l& y: @# [& j5 z# C
[
9 f/ \/ [" ~4 H4 S6 F# I. vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 {' u. F" `# L. ?+ L! e' H
]/ f9 v; j4 Z) p- ]7 L2 i% x: ~1 _
]
S% p' ^2 t) |) I* Klet j 0
G% H+ T; P# e' O0 s9 Slet note 0
# M- [6 f; G' ^3 hwhile[ j < people]' h! _! Z- J8 q8 X+ m/ e% k0 T ~+ h
[
/ ^* J( h. E# O$ f8 Rif( length (item i" i v0 H/ U' V; x) r: j! g& S
[trade-record-all] of customer) > 3 )5 Q' W% p; z& y0 b9 j
[
8 O/ S; P4 p( ^. N2 S9 ]ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% f: @" s* n5 [4 E" E% G5 p[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 l5 M+ F1 [+ S' Y) D8 |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 P" g3 E6 _; ~' N( C, |]% k& L X2 ` G9 z, a6 N
]4 K$ m+ r/ [+ N( b0 W2 d
set global-proportion note/ @8 X8 s0 ?+ B6 L1 z6 N
]0 N' F! R% K& V9 h0 F
end
. b7 D' C0 f9 U" s' h& d! A: n+ g( f
to do-trade
* J5 [7 P, Y& V6 B9 a' v;;这个过程实际上是给双方作出评价的过程
# B, O' a. N) g. {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( y6 Y" l: l5 ~( X+ K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ j) i6 I/ t) z, s; b8 Hset trade-record-current lput(timer) trade-record-current: \# E9 D7 t, Z' F4 ], ]* N
;;评价时间
9 D$ Z: f6 X6 S0 v6 S" task myself [7 B7 d0 d/ _+ k o% A( | S5 O' T
update-local-reputation
- ?& f- U: J, `6 j( dset trade-record-current lput([local-reputation] of myself) trade-record-current
, `/ Z. S1 g4 V. v/ n]$ s$ ]) Y: g4 R0 K
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. C" W8 i! U- H9 \1 p* s( M, P;;将此次交易的记录加入到trade-record-one中
+ ?0 ^' X( u4 F4 K4 ^2 T* j% rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 p0 a( M- \+ P, K
let note (item 2 trade-record-current )! l/ K6 @$ }! t8 C4 ^
set trade-record-current
- L `- C6 g- P6 m5 F(replace-item 2 trade-record-current (item 3 trade-record-current))
8 n, F2 X& ~! G# U) k Cset trade-record-current
7 A* I; W. A* B(replace-item 3 trade-record-current note)( |3 n3 j8 _' E$ Q. x
& n8 q, X" A- ^8 o( l7 [
) r$ E1 y' M5 Y! U/ N+ _6 G
ask customer [
. J, q- e9 `5 K/ Nupdate-local-reputation* n3 M# n- B+ u$ h' W
set trade-record-current
! r' W; c8 g& s6 N7 d$ J(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / R/ W/ v" ]2 B8 ]6 f* D! F
]# `9 y/ S7 o3 }% U2 U) |& g
& a2 ?6 B, y$ G k* A1 y, y% m6 R P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- h! l7 _) G4 v# }0 R. y
/ z8 b+ n/ }" E( Dset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" e l4 _# O/ e* {
;;将此次交易的记录加入到customer的trade-record-all中; A. h' ]& t) ~& \" `: o+ H
end% f$ p+ Z* P5 X/ S4 \
0 Q+ q8 }( \. tto update-local-reputation C! W6 D# i2 j' x7 g
set [trade-record-one-len] of myself length [trade-record-one] of myself
* G5 U! {) A4 I& h G# X% `3 _% e7 m9 F# Y% J$ E6 z3 H/ W4 I: m
+ v* x2 _3 C4 r3 q. q
;;if [trade-record-one-len] of myself > 3 ' {# t( M+ u# L/ q
update-neighbor-total" P5 s: L0 u ^7 K1 T2 R. L. u( I/ D. D
;;更新邻居节点的数目,在此进行& Z) M# U* @7 d3 \0 w
let i 3
1 p- y0 g9 f6 T6 O4 ?% Z, Clet sum-time 0# N: o- l1 o" @) K2 W( D
while[i < [trade-record-one-len] of myself]0 J% b6 ~/ g& @+ L
[
/ s5 G E4 [) y3 x: M k) D- M6 iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& q8 T/ | ~0 ~/ t1 v. o+ h7 ]
set i+ G- d4 [3 g+ H
( i + 1)
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let j 3
: B# R; E" y0 s5 I5 C" ^" z0 C4 ylet sum-money 0
; _) e+ v9 D, }. \0 s, |while[j < [trade-record-one-len] of myself]
6 u) R( f( [. I- W[
: i+ L6 b/ ?9 Qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 H! K& `& J/ s3 Y1 F! T2 \
set j
6 G, l1 D- S8 k2 c; L( j + 1)
0 Z- P [, J8 ]( `% ~, }9 P2 E6 ^]: b# e/ Q, h- n$ Z1 p$ F5 T0 O
let k 3
& f# j7 S1 G! Y! S7 b9 R8 \ Llet power 0
7 s( [3 M6 \0 m/ clet local 0
7 c5 d y& d5 N* dwhile [k <[trade-record-one-len] of myself]
3 v% w6 n6 N( k% ?3 [* n' ]- r2 U[' g( h# S# L4 @- i: O( _. F
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)
: n1 S9 ? [6 D$ l& v7 Wset k (k + 1)
4 F/ z7 S1 \9 x]2 n( s- M) o. x4 c
set [local-reputation] of myself (local) `+ c% W) i) S# n
end0 }, s0 j- [& C
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to update-neighbor-total: l5 o W7 K* b. c& X( @2 F
# z u1 m2 \; ]& u# Jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 l) y+ w: s' y1 ^ o7 v* d/ L
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end
4 _5 I. [4 o/ A$ Y% R# i6 j
1 X$ T( Z0 R# F' K7 Q1 Ato update-credibility-ijl
d! r/ c* D2 }7 a% h0 b/ d2 C% K" J2 W9 [6 K# ?4 u! ^2 r6 ^/ U
;;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。
: ~) h- y/ j8 F% G4 W& G Glet l 0
: L! G3 }3 H1 e( F2 swhile[ l < people ]
; V, u3 X& K! _7 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2 Z6 v. T1 g1 _$ O$ L; |
[
" H& n2 G6 }; m5 _let trade-record-one-j-l-len length item l ([trade-record-all] of customer); H* n1 h+ h% L5 H9 K5 V
if (trade-record-one-j-l-len > 3)) E: d9 v4 C3 x; U( m: Z
[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
0 e& @. u" ]% flet i 3
i7 q8 e1 H2 T. A) hlet sum-time 0
/ X s' K2 ]; } ^3 _while[i < trade-record-one-len]
4 f( V5 Z5 I' J' N2 x[
! n, y' _; l0 Fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 ^( U, m+ U& h2 I/ `set i) }& S4 l, k. F* p/ v
( i + 1)6 {4 ?( D* X8 V4 o% Y6 O+ H4 P
]
$ W. F6 A. ]/ q8 b2 G& llet credibility-i-j-l 0
. Z6 T. ]) u8 w3 k1 o1 Q;;i评价(j对jl的评价)
+ m B T. i: M7 @: r; t; Flet j 3
2 V# Y! f: B8 a. f5 Nlet k 4
% H, `9 K& I1 L n$ k3 Bwhile[j < trade-record-one-len]0 Z5 ~4 Q z& R8 E6 ~% P! `
[6 d7 j# U# K$ ~; b/ B2 r0 k* P" [
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
5 r1 K( w7 H$ h3 O7 C1 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)
5 z9 R' B. z5 }! c% X/ fset j
4 Y6 K: h( D' m7 N0 {( j + 1)' X4 K' a% e/ e% E( }
]
; X# c; `, f. J# a. V6 J: Tset [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 ))
" J& V: }; z: T; _/ _. U" R
: G ~5 K) N" p; _6 e3 v& @! m+ Q
, ~2 D4 X, _ Qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 ?" _# j3 A4 r. S' N
;;及时更新i对l的评价质量的评价
8 `; V' ?; ]* U; {5 ^3 t" Y9 L: Vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' R: O, i9 |/ ~* B/ N& @set l (l + 1)- @ T0 c5 @; Y( S- E! n4 q
]
& R# |; R. G. ^# H B6 Wend& U$ K& I! F/ ?6 S; l1 h3 {
0 o* H* j& N4 f. `8 W* i" }to update-credibility-list6 _8 r% F1 {; M" u
let i 0
% o2 d: O& j) p, Pwhile[i < people]. V$ d i. t$ \ C# }; J
[
) a& z T' g$ }; E& Z' Qlet j 0+ L5 X9 L, }; p' `
let note 0
; v% }9 i: i) C1 Plet k 0) P. Q# Q1 w$ A6 l
;;计作出过评价的邻居节点的数目
5 Q. o l5 u: ?2 w2 {9 O# Owhile[j < people]
8 H$ [2 r g( b& w1 f' {5 ]4 Z[
' Z( U7 C* g8 `- u/ L0 ~% Eif (item j( [credibility] of turtle (i + 1)) != -1)
9 c# e- d/ f" ]2 l% T;;判断是否给本turtle的评价质量做出过评价的节点+ c! ~0 v5 u' v6 I2 U! D
[set note (note + item j ([credibility]of turtle (i + 1)))% ?; p8 Z) S! a7 T, ?
;;*(exp (-(people - 2)))/(people - 2))]
1 Z( t; H: g* k* g9 gset k (k + 1): x0 h9 l; }0 ~( @+ I" U
]5 M7 e3 I) r* b" C0 c+ c5 L( H7 q
set j (j + 1)
2 ?( D! {, ]+ _) D- T$ L. c Z]
) P: b' `% ^/ `* t& ~1 y7 rset note (note *(exp (- (1 / k)))/ k)
p' @ J, g0 q$ D" p! [5 s, R* sset credibility-list (replace-item i credibility-list note)
( g8 q$ t7 i [) S( Pset i (i + 1)
* ?1 C, t$ q; u% t" \, s/ t/ m4 f]0 Q4 E [, o" d# F& k. t4 _7 j
end% G6 I4 S3 C1 c: c5 E+ d- p
# J2 l3 W7 j4 d: tto update-global-reputation-list
# Y! ~+ t+ L/ n3 a7 F% M# }) ?let j 01 S S, R; M/ }
while[j < people]( E$ ^! |# h6 V! H* n! P/ ]5 N. E
[
! N. G' L$ I3 `: ?. ` `, klet new 0
: T1 ~# F M' o* y L; z;;暂存新的一个全局声誉
7 k1 F3 ]1 V8 K6 |9 n' S, ^let i 0
, W" f# C/ A% |3 G/ S3 d0 L7 ilet sum-money 01 p4 N4 I- ^0 B% `; f2 S1 j) }& t3 l3 l( e
let credibility-money 0
0 y1 T# [' N6 e; nwhile [i < people]6 V) V! _* f) p, c) R- R) _- l
[* T+ N% Q T1 C6 E+ t# ~+ Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 u0 N4 k$ Y9 t) ]. \
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ R. `& |! u* _9 ^; }set i (i + 1)
7 Q2 H) l- W0 D: {" P]
! @2 B3 y; |$ A# q4 h% wlet k 0 ?# A9 @5 ?" b+ m& ~
let new1 0- W- [2 F4 r' K' w/ S
while [k < people]1 n1 p* V! t, I: P+ }: v% ^
[( q; T5 Q3 {4 w2 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)3 A. c1 N- D* H; Z' h* Z
set k (k + 1)
6 Q( I, A; D: X7 c1 }4 ]]+ B% L0 F8 M) {6 x* d
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) - f1 i: {) K& ]6 F
set global-reputation-list (replace-item j global-reputation-list new)
+ }9 f- a9 ?% ~( n0 P! S' c# `! sset j (j + 1). r7 Y: ^; Y* O7 E2 g: P2 J
]/ W1 `( R; o! A) F+ W( Z$ M9 h
end3 ?! V; l1 J! V, g' _8 R) s
1 d/ h; {0 ~$ I5 h3 [# @5 m$ ~3 |" D
# S' u3 @$ _( N& d9 G$ j" X& F3 [; \: r8 ?
to get-color
" {7 J; q6 r6 f, B0 N' C) v, I( O. }& c6 l, i
set color blue: p) v. E! k# o+ z* _4 D
end% C6 B6 x' g9 S
/ Z |/ Y/ A+ X. {3 O" ]to poll-class6 H) |, D! X1 s$ }* V
end+ i4 a$ D( H( ]- i2 }9 h
* ]& c0 b5 R6 Tto setup-plot1
# {7 X P3 x5 u- a# P( h/ U' f7 j T+ u% `, B8 U
set-current-plot "Trends-of-Local-reputation"
; X5 ~5 Y! h' G6 L& k- `" C
6 D D$ u! p7 V# v8 [, k/ i& E8 X& Oset-plot-x-range 0 xmax
" L1 ]8 O/ F4 c! x8 ^2 q& |( e- d% i* v! h& d" b
set-plot-y-range 0.0 ymax |$ T2 i0 m- r- e* Y* B
end
4 `3 t$ `4 r5 Q8 q$ q
, U! O/ A% K/ E, D; _to setup-plot2/ T$ L6 g3 @. V" O7 V
/ z9 D: M1 C. v* ~6 Sset-current-plot "Trends-of-global-reputation"
4 ?* }( i) f3 R& I6 b# h! S8 F; b1 n& C; h* M, e
set-plot-x-range 0 xmax
3 I4 E- n, S+ T& `' J7 v7 I" f! H! y8 j, N* Q. |3 Y
set-plot-y-range 0.0 ymax+ Z! J O( t' j) e0 o, v
end1 h. f4 F( S4 C( k1 D0 f4 P
5 z; |! u$ b0 x# x; ] z a
to setup-plot34 C0 M3 C' D% U
# K: ^( f4 t) |$ p/ u$ E( Fset-current-plot "Trends-of-credibility"
6 {3 N, U* Z5 V5 [) ]' y* v
& p& T7 v. f5 h, J: Dset-plot-x-range 0 xmax! z. q! |. b [
- L# O, [% I( y1 z1 b3 t# E [set-plot-y-range 0.0 ymax
! Q. k( d- S5 B1 O! [0 w. }end
, L1 d2 O8 M8 {
' V2 B h$ @$ v$ e/ G2 j5 C9 |* Q" P0 \to do-plots C, o6 r. h3 H
set-current-plot "Trends-of-Local-reputation" B( C( R3 w2 Y0 ?9 C- @
set-current-plot-pen "Honest service"
0 b3 F i9 A; k* p8 g f0 R* vend
% A: a9 ?1 F. k; m
0 l' j% @2 f9 P+ x( U0 H[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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