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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. c6 H0 A: r e
globals[
( ]$ S2 g( W) Z- dxmax% h. `6 ~/ H5 f: R
ymax
5 u' G, b2 h# H6 x1 O. E. zglobal-reputation-list
# y; r9 h" n0 x3 v, r% B4 ?
0 \& R5 H( _8 S3 V3 n;;每一个turtle的全局声誉都存在此LIST中5 g* @7 i3 d" r4 L! @
credibility-list
m/ a9 F; ?# q8 V o;;每一个turtle的评价可信度+ K) Z {) k/ i& _( X* w2 }
honest-service2 J) s: t/ s9 h- ^5 Q4 Q0 k; q9 T% Y
unhonest-service8 @( B9 G- o8 T' f( O
oscillation
3 z# ~8 Z* x/ |8 ], |1 U5 hrand-dynamic8 ?) C; X) ?$ L9 `& y
]! B. O1 Z6 b9 w
' Z" Z M' i' }) @# {* w8 }
turtles-own[
+ i0 u0 H2 n# T$ W V: ^trade-record-all! N" K6 P8 R; m% U8 C. J# M
;;a list of lists,由trade-record-one组成
; P6 R- k T: S( S7 o; etrade-record-one
. o9 m" Z6 r7 b* B* [;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
) \- [) p8 p" P6 R2 m) z" ` E! n$ K6 e/ e
;;[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]]
& |8 U# I" [* q/ \, ]1 etrade-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]
* E3 x! B% I2 {0 ?( D! t3 H7 k! Z. 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
) [2 h7 b$ F* R+ f$ ]" ?1 hneighbor-total# d U/ V: @5 T* d& \; b( c
;;记录该turtle的邻居节点的数目2 |- O1 t) A' v3 b' \
trade-time
I+ y4 C' Y8 \5 b;;当前发生交易的turtle的交易时间
' G9 I/ P5 ]5 j P; l2 n" fappraise-give
$ j) ~7 [$ [: @; ^2 Z;;当前发生交易时给出的评价6 s# ^* ~, a7 `/ a% }
appraise-receive3 ]3 q6 Q% n4 Q, d$ F N
;;当前发生交易时收到的评价 x( @7 |0 H8 h$ a
appraise-time
0 m' r8 Y6 I3 y- \% s: e;;当前发生交易时的评价时间$ \2 c" [% y3 I1 @. b9 ]7 r( [. h
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; K" G: g# l m& T$ i$ S" ptrade-times-total
( d+ e! L. L9 D- g6 p;;与当前turtle的交易总次数
8 z: Y. T; Z/ M; r9 ]trade-money-total+ P* m/ M. F4 `1 h' ]
;;与当前turtle的交易总金额
* I/ w! }: }% Slocal-reputation
! A$ P! C, R0 Q j M. vglobal-reputation/ c4 e5 y/ Z" P! U, ~" j
credibility
; r% i2 d8 d& `: j;;评价可信度,每次交易后都需要更新& `# l! D2 m+ c: x
credibility-all
) }/ \7 `! h1 a0 `2 m;;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: R1 s3 v* d( g0 A6 Z9 c+ H+ [/ I" g1 v4 b! J( E
;;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0.55 o; `& A' q' z: X. O
credibility-one
2 A' ^; R! ]% a: h, V: C;;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 k* |* `# \- x+ I# K: l& G
global-proportion
6 k2 ?0 V4 \: C+ m8 b3 lcustomer& Q6 n9 b/ e/ N; f
customer-no1 O8 k/ k8 B+ B5 H4 O/ G3 y
trust-ok
' E1 L% [. k" B: N. ~trade-record-one-len;;trade-record-one的长度2 w1 ]9 I4 W& [% `
]
0 C$ o0 N" a2 f$ Z" E/ ^1 H% M* F: f8 I
# Q: O p+ D- y& Z; ~7 w;;setup procedure
, J+ U; n! a8 J6 w
+ X. c0 T) I% H3 b q* V9 W5 {to setup; q! P u$ _+ b8 d9 l% u g% g2 T8 V1 {
! Q# P' {; f5 s1 ?& c3 x
ca
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initialize-settings$ D/ p3 `, j( ]5 {+ U" [# D0 M/ i
2 j( b4 A' r* c! w* B4 H* ycrt people [setup-turtles]
% H5 g( B! ^% j3 o/ n1 N( G0 |$ ]3 v
reset-timer
: x! A8 Z" N, w$ O/ K9 \3 M7 ~1 f6 h/ t+ N% A9 X" g% D: p
poll-class6 }$ I* w8 a4 C2 t
8 `4 X$ p; n. K. K% s3 `9 {
setup-plots
$ l& ?1 @+ M D% o
! Z# Q# T# X4 F2 x: e$ x; ddo-plots
7 Z( e6 q% i: R6 f+ a. Iend
3 W3 @8 Y' T# ]& t" y8 x* N! W- R& d- K+ ~' P+ e
to initialize-settings
9 ?/ X) l; K" c/ |& E
0 @; }3 [2 f+ R6 oset global-reputation-list [] T4 p2 _: _& O+ q, t# C7 D+ f
4 w" q7 y; `) v# p( ]/ ~set credibility-list n-values people [0.5]
$ l; j- |, W/ P# X
2 K5 g4 {. l) ~& m: D1 hset honest-service 01 ]- H+ p" R# J9 B0 }7 W1 g: x
: m" [* G5 [. P! q4 n M; T
set unhonest-service 07 \+ ^: W+ i2 O
% O: J" w2 @) i& F
set oscillation 0
3 \+ ]) W! ~! t4 A1 D" ]. v" [: B0 c! Q$ \0 m: D3 [
set rand-dynamic 0
! W$ ^* u- _" a5 _end
6 z4 ~1 h# E, E! N
: _9 q' f- }0 U0 `5 P# zto setup-turtles : C2 J- Q S7 W% \. q
set shape "person"! r# Q& |; g6 B, l
setxy random-xcor random-ycor& _) D$ P& P9 W6 N4 D
set trade-record-one []
9 }0 B+ Y) R! b8 ~
* ~3 R' s6 p8 sset trade-record-all n-values people [(list (? + 1) 0 0)]
- K3 b3 K( a# [1 ~7 x- O+ Z% r; |2 g9 {: o
set trade-record-current []
' X# [( B. q; fset credibility-receive []
4 Q. y! x1 I/ w- x) p( @) ]set local-reputation 0.5
4 f/ [0 P/ ?5 f% i3 k, t/ yset neighbor-total 0+ d, e) w. Z2 z; V2 z- V
set trade-times-total 0
" B6 _. g( I# g5 b& Mset trade-money-total 0( \# l" L" u3 H1 J$ ~: t: N# I
set customer nobody
7 e6 _. F8 [" g) aset credibility-all n-values people [creat-credibility]
, r* s& z3 J6 X- m3 {set credibility n-values people [-1]
: f5 O! C% V$ A* u4 nget-color
0 K+ M( l. O$ z0 A4 U
; w) ^9 F" u! j6 L7 Z4 mend1 B" D7 e- M) p+ r( ]8 I% a
: h' C! I0 a8 J) J& \) W) Q; v
to-report creat-credibility
: I0 @& z3 T" D) t0 {) D* @report n-values people [0.5]$ t7 K9 B0 u6 X$ U% ?( q
end+ X" f2 @! G, x: G& C
8 p5 D2 }/ j+ o2 tto setup-plots$ ?0 W9 N; X" y4 W. C/ k5 ?
3 v' e: H4 `% B4 V. r# @7 V" R) k
set xmax 30* S* `% H, f" v- F/ T
. d2 e& N% X% R9 tset ymax 1.0# F* j8 R$ k! O
6 r( ]' M, S$ }, M5 g% k
clear-all-plots0 u; j! D% k7 w( e" j; D! i
& v* u. o6 Y+ z# a' |6 N4 o7 ~+ c' f
setup-plot1
3 M; \: K# H' l3 S6 ~7 [
Y Z' Z0 X& S# xsetup-plot2& F$ a3 `8 d V: Q' A
* v% r( c# \. Q3 X; L! o+ D. t, d! Asetup-plot3
& c/ _' D- c$ _- \! m K9 B# mend
/ `. S# t2 t2 f }- e! A9 p
- k7 R8 i, Q! z. y& y6 L* I/ |6 |7 \ x;;run time procedures
+ n4 \6 |( Y. U
! e5 `' @$ X! L/ H {5 @% vto go6 A7 Q6 i+ O" a; `4 k6 X- |0 @! m% A
+ G4 y. v5 J! h! \$ N/ u: W+ F
ask turtles [do-business]) G+ j1 w$ e9 y, D
end
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to do-business 9 [+ Y7 \& x R% I
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- X; \: I6 r, A
rt random 3601 X: G! R# `2 b9 p, }! Z% r# a
5 `6 h* m# m+ B1 y5 Q( u g* {
fd 1+ `. g7 j# l# ?6 z/ ?$ S
E+ ?" ]/ c' y0 ]
ifelse(other turtles-here != nobody)[- S/ [3 \' K/ A4 l9 k( \: n3 H
9 I. p0 A* g8 k1 R* e$ m8 fset customer one-of other turtles-here
2 e: Z2 Q* J; Z
' ~" I- c% Y( z4 b. U g;; set [customer] of customer myself4 \" z! `" Y) g; X
. w5 ]0 N2 u d k+ Cset [trade-record-one] of self item (([who] of customer) - 1)- H8 w. {: E( _+ o: ^
[trade-record-all]of self
* D3 f+ Q. g2 P. \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 Y+ S; m" q% Q& v+ a, b$ ]7 R1 q; }2 S
$ K% f. K- J4 }0 W c) x4 d% _
set [trade-record-one] of customer item (([who] of self) - 1)5 B9 ]) j4 i; B' O5 e* n0 @& M
[trade-record-all]of customer5 e$ E$ W- r/ R Q3 S9 p7 x
& X' v0 [& P$ z2 R, D
set [trade-record-one-len] of self length [trade-record-one] of self' o0 n* `3 `9 v' J2 M
5 c( P. s" E2 y3 G% ? N5 }5 U
set trade-record-current( list (timer) (random money-upper-limit))
- e. d4 p, e7 `
+ V# h4 o( ]2 o* Y1 }ask self [do-trust]1 p9 |* Y) W7 n' h# j, w9 G
;;先求i对j的信任度# Y* B( L! G, M) e1 y
$ W" E, Q% ^; A- \0 Eif ([trust-ok] of self)
0 E4 h- u A3 p2 X, f0 M4 e;;根据i对j的信任度来决定是否与j进行交易[
9 |$ i& \. P d2 a7 u+ ]; ]ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
* L6 `+ j; [1 c, M) W, @9 j# b+ z: J$ c7 e) c8 |, x- H% w3 n
[
4 g$ }& i8 r' S% Q7 o
0 U! ~+ X# t! j2 Odo-trade
7 y1 Q1 ]) g5 Y% n c: r7 T A! `8 h4 F3 I$ G7 A" F7 \
update-credibility-ijl8 h4 n3 E, ~5 C$ y, w. q
' P2 I" x, V+ j9 n* n. J
update-credibility-list
6 m8 F+ f8 n" P, W% {
. P5 ~9 p; c$ i9 Q5 I4 @7 j
. N/ h6 j4 C+ G0 }) m0 tupdate-global-reputation-list
' B( [# b9 d% L/ I9 O V
' ?/ ^4 A& Y! Ypoll-class" h" v8 J1 h$ a A6 @9 z
|8 Y6 w' J! `% nget-color- F+ }# d+ f# Y- H6 X% @$ g6 G8 F) y
6 H- d% {* [2 e3 x; j]]
. S' r6 Q+ p& {" a+ D9 N2 x, z9 y9 k; N$ l3 `5 o+ A8 D" Q
;;如果所得的信任度满足条件,则进行交易
8 F$ j/ i4 x4 ? l7 ~) D7 I- \8 C$ x8 j- ?0 ?
[8 a9 S; D/ J- S
8 ~6 b& q* k) Y6 B9 r
rt random 3606 s# J/ c( R. U
2 A3 ~! u4 @, e/ f2 {) kfd 1- n' a# {+ P! i3 K) z0 ?( c4 G) I
8 Q: [/ Z2 h! E/ Q8 R' L, H2 []
; ~: L! | A: V( Q1 u0 o
7 U" }! S* `2 C8 }+ `end
5 T L; a! O t$ ^/ \% d7 P5 X+ K' n4 q" o2 x* X& o
to do-trust - R0 } T0 C$ `- X( d
set trust-ok False% f/ }' m! c+ C, A9 A; _' H
# C6 \3 V4 J0 x2 s1 F* {
3 H" @6 K8 \) X* hlet max-trade-times 01 F; f, \0 h, @2 D! v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- F H- q) h! i
let max-trade-money 0
6 ?7 [$ ]7 a7 s7 U) c6 |( I; A- ]foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ B; d7 [2 x5 K* P+ F6 r
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 }+ g( y, m" X$ Q9 l
6 }/ `6 U1 ]3 h0 l
, }8 @" @; E3 r' Qget-global-proportion
3 m* e* u& D# {! p( ulet trust-value3 Z# u) `5 N7 j( ~7 n+ _
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)1 S- K8 A. H( f* R% l [8 a! [
if(trust-value > trade-trust-value)
, h% j9 b6 @# ^3 V[set trust-ok true]' b7 @* l% u# ~% V' r
end3 w3 ]5 U$ T! j2 ^9 Y4 G6 ^; q
6 n; v5 I1 q) H, \7 Q
to get-global-proportion/ E6 B5 ^% c- a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 n o# h) v4 M% l/ B, y- B
[set global-proportion 0]" T# j" S1 V+ ]8 C- O
[let i 0
+ E* Z7 g: `" j- [3 U% q9 ?let sum-money 05 ]$ M5 k. z& K o4 V$ q! ^. w
while[ i < people]6 h- a9 K3 e W
[& x( `1 o0 T; N% f! j: W! C
if( length (item i
& h6 O F7 X0 I* p+ b2 d8 f& `[trade-record-all] of customer) > 3 )( l8 s- m j7 ^/ L! B' K2 h O
[
" I" h8 _. p5 X! _set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
" k. G8 Y: a' e9 v. b; g( Y]
, k: f8 S, r" P& T]( O% }2 C2 J5 P/ m( s) E
let j 01 _: L" T2 @5 S- H
let note 0( A* l/ ^; d @' i' c4 ^0 D
while[ j < people]
% P0 ?# T. m- A6 n# d4 t" |8 Z[$ m. Q1 I% C9 m5 x( ~/ f+ u
if( length (item i1 M% z$ U+ k3 X4 \7 e+ S/ z
[trade-record-all] of customer) > 3 )4 q+ d0 N2 W& [ z0 S x( F
[# h. O; _' W o; a" X; B) o
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 s# l2 C1 Y$ z( s[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! P5 y; E3 H8 L+ m& F[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 k5 Y! p& g P4 J* z6 H]& P. h! R4 q" l7 f- x5 o4 V
]9 I, m6 g9 z# N: ^7 r
set global-proportion note
3 X: C6 M* B4 J. M, O]
3 |9 ]4 p. ?; l2 e$ d! }% send8 b2 E- p# U+ k
' j( B: I/ m- H$ q; W* H0 jto do-trade
3 O$ s- a$ B; j* k;;这个过程实际上是给双方作出评价的过程# d a i3 d5 q5 \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 q3 S7 [5 B5 h, D' H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 d# U: K1 H) v& t
set trade-record-current lput(timer) trade-record-current
: F6 b5 D* Q1 u0 h! \ @. ~;;评价时间
/ X* o5 v4 ]3 T' u' S: K6 j4 aask myself [1 @& _, O+ W7 o" l! t1 `
update-local-reputation* C, _# z) U4 d/ ^* h- }* n1 a
set trade-record-current lput([local-reputation] of myself) trade-record-current. v% W1 n5 q2 }. i9 O
]
B) q3 j6 E( q" ^" \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% i' M0 E! X4 G4 d: v- f8 v0 V" K
;;将此次交易的记录加入到trade-record-one中- u# ]7 |3 w0 ~8 h9 U- H
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)# C3 R' ?& ]. }$ U1 c
let note (item 2 trade-record-current )6 v/ z0 e! Q$ f5 Q! F/ A; p; n' R7 ?
set trade-record-current6 H. w0 b8 g4 \ b
(replace-item 2 trade-record-current (item 3 trade-record-current))
: X/ t2 x P/ \4 U8 H% G9 nset trade-record-current
! l2 R6 z; X9 s% k" h5 J) u8 X(replace-item 3 trade-record-current note)! Q; ~6 k4 }0 H% [; h
\5 y9 L2 b6 l% n7 w( k$ z
6 R9 |/ r4 Y, \ e8 Vask customer [
X6 w; S" u+ I9 E8 }+ tupdate-local-reputation
8 q& J/ g- o0 P4 g% f/ W& ] W8 ?set trade-record-current
6 L, W+ H& H. Z$ n3 u, E(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - `% I- [; @( H3 B
] [8 f7 R8 ?& j" l
+ [* ]8 I7 Q% E( d2 A% @
( e& ~6 K N" ?
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' {1 M; p, {* {- w; s1 Z! B
" k8 S" x0 c; H, N1 zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 y( h1 B% r8 a' Z! U! H8 S I g5 D; D;;将此次交易的记录加入到customer的trade-record-all中3 c& V- g, J p2 M; C- s
end
g6 c$ d" ^% D$ @( B6 K* B( c4 P
( h+ h% Z% x- T# b' P wto update-local-reputation# t7 T% J5 G0 o1 G" E1 i
set [trade-record-one-len] of myself length [trade-record-one] of myself- t) j3 R$ D4 b- U
. ^( S5 a/ i4 S d, c1 _
2 B# ~, E- u% Y" D4 l2 [( U+ I t;;if [trade-record-one-len] of myself > 3
8 b& |! R B/ s! c+ hupdate-neighbor-total7 w1 C' M, I$ I% e. }/ h+ D+ ]
;;更新邻居节点的数目,在此进行! X$ N) j+ i1 q, D, J
let i 3
- c' ]& M- t! @8 M1 rlet sum-time 0" ~2 _$ V4 w$ ]
while[i < [trade-record-one-len] of myself]- m& g. o# |( R: j7 A+ h6 W) L
[0 m4 I8 W4 F3 G( ~- @+ C2 g) y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ [9 o. K$ h. }/ q8 P- k9 eset i
% \: h# A8 D4 F- A1 T X" i3 g( i + 1)
1 K- ?! m0 A: e# A* W |/ Z]
( g' w4 P2 x6 ?) Z3 ?let j 3
& Y1 g k3 Z7 J. Blet sum-money 0. j2 s, s5 O) t* f- Z
while[j < [trade-record-one-len] of myself]
) W! y" {. q& Q9 O[
& c$ b, t2 c0 @& Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)) Q) R. G0 b0 h w7 L2 G
set j
3 L' J- }7 L* S, J( j + 1)
7 @6 q4 l. N! f0 `5 |]
$ E" m2 Q7 `3 b) R2 I- Blet k 3
( S+ ~% T* L5 I `" J' o: Zlet power 02 X9 q; A+ R. c2 a S1 t( s
let local 0
$ w; B% o& L* L4 j: Hwhile [k <[trade-record-one-len] of myself], Z2 Q2 g! {, J6 n
[
5 W6 V+ E% d- mset 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 K) L& Y3 o/ ?& v) R6 J9 Aset k (k + 1)
4 n: U/ F5 `( A$ L& J]. O! ]3 N% c- @& `4 R- M
set [local-reputation] of myself (local)
! c6 N( `+ U5 i3 xend
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 D( Q9 ]/ f7 _$ z: x- ~
+ T5 ?9 \$ j6 W* Q8 i( z4 g
* D% B3 k! A/ e$ T
end1 I2 h8 ?! b. G" m) B' ~1 X( U5 S$ b/ v
3 J8 L; F3 y9 N: F, P( f
to update-credibility-ijl
z9 g* z, r7 q- x6 U
) M- ~' Y: U9 S i) ~* 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。
7 r$ v* W$ ~, ]: f8 {1 o) W" U4 a0 Rlet l 00 ~! _8 F& s6 g. Y i+ O& i6 _
while[ l < people ]
! t x7 y" U8 ~2 o% |% G- D/ q;;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5 q1 ~& ~4 u3 X1 O% [ v
[
& `8 x( u& }5 P; Clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 v+ B! ]4 V. N2 @* Zif (trade-record-one-j-l-len > 3)0 K) o0 i @! Q# X- B0 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/ w7 U1 b* o' z. _+ B: U4 C2 c
let i 3
* \7 E; q! M8 [! alet sum-time 0
# }' L, c- o: y; U7 dwhile[i < trade-record-one-len]
3 h! k) r2 B( h9 ]3 w$ j[( [$ l. `: `" j7 Q; p- ]' ^) i1 _; W- Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 @6 D# h) R+ a6 t, L# k: ]* Nset i, U% h( L F! ^0 R- p5 q Z
( i + 1)( o8 M* h, P$ u; c: Z
]
* G0 J6 [8 e- P6 @let credibility-i-j-l 03 ?- S3 R3 s) z
;;i评价(j对jl的评价)
3 ^8 U; R! W8 a. l* Q) U. llet j 3& h2 n0 ]# o# ]$ R" Q
let k 4" l$ G. T* p: l% ]. f8 N
while[j < trade-record-one-len]. r: e0 L' `9 k/ \& K8 a4 K2 H3 b
[1 q0 U" Y \3 g8 ?" i
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; I5 A1 `' e& h7 `$ J* p H( V; ]
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)
; i) S) h# n6 _* a2 ^6 d7 [# Z$ Jset j2 |, i# ?, ^ }/ M" M% ^8 c w. r
( j + 1)
( B! y8 m" b1 F], Z: [" N( p8 }; e9 G0 w6 p
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 ))
5 b3 S! x! T, `8 K/ L+ _1 N( M
9 u! A9 n1 @7 ? p: |& O
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 n0 t, x2 J3 z9 q* J0 z;;及时更新i对l的评价质量的评价
. _- N) \7 ?4 I4 X6 Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 c% `+ [4 [) F! n2 G8 O
set l (l + 1)# b% @. `1 P3 c, v) D4 `8 f6 s
]
& s# w# g( j) \: g3 Uend' S2 H! U! W6 I) `' Y/ C
' Q! S6 b! ` O2 ^, ^1 x5 |
to update-credibility-list
. W1 w0 c% y4 @2 ]+ a" U7 vlet i 0
+ m0 n9 i1 f1 \6 t6 Rwhile[i < people]- i$ ]9 k$ |) e% z+ g+ t
[6 ?* n! }9 t- L( H, u
let j 0/ z# j; Z. A) Z, |/ o8 r
let note 0) m, J5 F- n: {% \4 F8 {
let k 01 E! ]) e4 F3 h% B' R
;;计作出过评价的邻居节点的数目
$ Z- X8 f! P3 v0 _) O, Dwhile[j < people]
$ j$ G. I7 ^4 L. {" l2 r% Y: i[
: Q p M/ y; z2 wif (item j( [credibility] of turtle (i + 1)) != -1)
7 w9 e1 k- ]* n5 d; ~6 X3 t: `;;判断是否给本turtle的评价质量做出过评价的节点2 D' S! V0 Q+ ~3 w& s0 D
[set note (note + item j ([credibility]of turtle (i + 1)))9 P* \+ V8 k) p* x$ Z/ E% T# q
;;*(exp (-(people - 2)))/(people - 2))]; d, [2 N) h* H/ W# @/ I% _
set k (k + 1)4 e# J+ h' |% J. C: i
]
) G/ _: p/ w8 }+ t3 rset j (j + 1)
/ a6 Z, L; o7 C+ c: K]
8 e9 h0 F5 L" R6 t1 mset note (note *(exp (- (1 / k)))/ k)/ H$ G& _, W: K
set credibility-list (replace-item i credibility-list note)
& {$ \& K/ Z0 Y1 o. \; a( H0 ^set i (i + 1)6 H8 `/ V/ Y8 k d, V2 w* J
]
* a/ r3 K& ^. n' [4 N: P1 O. Cend
& T0 k A# {/ p9 ? o: v! X3 u& T( Z- m" }0 X
to update-global-reputation-list
$ ~$ ~0 z5 t8 n: @let j 00 j, ~( u) M, x
while[j < people], Z$ R7 Q2 v! f$ j, d. K. Z1 s$ i9 O
[
) ?# Q: `6 v( Alet new 0
6 M0 Z* y8 T. E: ~8 M) r% x9 ];;暂存新的一个全局声誉
, ^' T6 Y% X2 Rlet i 0
$ W* Z5 x( U* {) D# ]3 u& ^let sum-money 0
. R! M, E) C) B- q" m: ]: elet credibility-money 0
u% G! h( S9 `8 v; ?9 ewhile [i < people]7 H9 x& Y% {$ o
[
# z, x0 |- T+ ^( Kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 I1 S' M9 X: k# sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 }3 p. I; ^& Y& j7 c- Gset i (i + 1)
1 ?4 A2 n2 y. f m$ G]* t- p* \: G$ | l+ C: A' J& S" [/ F
let k 0
3 @* w3 U& A* z% l5 x8 {let new1 0
0 W0 s, B* ^+ a+ T6 uwhile [k < people]
# E- F w$ y8 E[
, |9 O" u/ R5 N r2 B& Q2 oset 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)2 K4 n8 X; x4 O# g+ {( S1 G
set k (k + 1)- W/ k& x9 I+ u- T* `
]4 W {- }$ p4 _ W. |" \
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% H: a8 C% t' }+ o) d0 U. mset global-reputation-list (replace-item j global-reputation-list new)& g- x; I. b- l) V: `$ |
set j (j + 1)
! T( @% H+ I' a" |]
; F, H X' o. }; ^. pend: G% v# r1 B. Y) @5 u
9 G+ u7 G" g! i( c( [
s. E: g* I* J8 S# B E- N
' h4 m" s& `0 J' pto get-color
$ V+ x, I- ]1 o% n, c) Z5 k5 R
set color blue
% \2 O& L7 B. Cend. Q# Q( }& i& P( n" u7 I2 R, i; _0 U( V
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to poll-class0 U& z& L' M" S6 _1 W# Z6 E
end2 I" q8 ~( M! D3 R% \' M6 Y" C
% p- @8 X' r1 u: Q
to setup-plot1. U5 N3 l, E5 }$ F
_/ o0 O9 ~ I: s8 x/ d
set-current-plot "Trends-of-Local-reputation"
5 S- Y: _) F* ~! e6 r6 X, W+ g2 H, t9 z a
set-plot-x-range 0 xmax
( y5 [6 k* V# T6 T0 u
: c+ o' l$ D0 X, d J0 v% s! Vset-plot-y-range 0.0 ymax
- ?% Z0 m& b% C$ v+ Dend0 G7 y7 L! P* h: n' v. M/ l
( a7 N H# z/ V9 l! F8 W& rto setup-plot2" D- b" N5 q, c6 d5 D& N2 ^8 R
! `. X0 h& v# Z# N& R! \0 B
set-current-plot "Trends-of-global-reputation"
7 N: u* u/ [8 p2 }! @2 d! l _
set-plot-x-range 0 xmax
: @% [/ g5 {6 j3 |5 I
m, u$ v+ a5 }; s$ x! C5 Q' x" kset-plot-y-range 0.0 ymax
8 O O5 E- Z# l6 T+ \. m4 vend
/ L: u8 T( e4 ]/ R! t
5 ~" t, F$ S! q1 }" ^to setup-plot3
2 z0 k( i( E- e3 i$ J6 [3 ]2 x& N, ]* N. |/ W5 h* X
set-current-plot "Trends-of-credibility"6 |8 l" K) v, `. ]9 b& a* s: s
5 z; F/ q) t' R& hset-plot-x-range 0 xmax5 K. R; ^: `6 s7 f O# A
% `3 d+ c% T& u% Q1 c& k
set-plot-y-range 0.0 ymax
6 f" k1 L" p: Y% Z* r# Aend( z& }; X* M- C0 }& x: D4 W) k& e* N, U
2 K1 ]; K. \: e" b" y
to do-plots- i5 }$ `) F3 E/ _! ^) f3 X
set-current-plot "Trends-of-Local-reputation", K6 R* V4 v: h/ b
set-current-plot-pen "Honest service"' F% r5 J+ F4 O7 {
end: \3 |$ G2 b c3 T
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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