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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- Y# T! F* |+ R7 D
globals[
. D8 t4 x/ u& H4 sxmax
$ \1 H8 _5 }6 w" W+ `3 x% Yymax
$ {1 a. c) n$ i' Q) Pglobal-reputation-list/ [9 H2 A( T5 S3 g
/ r0 i2 w- t6 H: }* e;;每一个turtle的全局声誉都存在此LIST中7 _; C( O: J- R. o) l1 L1 E; Z9 T* n$ Q7 j/ F
credibility-list
* v& l' d9 Q; T8 L/ O;;每一个turtle的评价可信度
5 y: ?3 S3 x% R: |6 O9 \2 Whonest-service9 j& T& A' J# X t
unhonest-service
5 M% H+ q7 x+ t5 H$ }, H$ {oscillation5 H" [9 K. w$ t8 Z
rand-dynamic
. E% W8 p w/ ] i# ~4 d]" C. Y# m: P' n6 L d+ x0 {
9 }3 i: l' ^1 w- i- Wturtles-own[ z5 N b) q9 a/ ^8 m4 e" r
trade-record-all! B7 O) Y, S' d
;;a list of lists,由trade-record-one组成* o. U0 u8 k. U) W1 G" s
trade-record-one
5 }, M7 _, c5 H% o5 M4 D$ j/ 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
$ P# A7 H' V- c
0 U+ A* L7 f: C, Y7 z8 I+ 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]]- O& I4 a9 c5 Z" D& h. q
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]* o& u& Y8 x4 J# d' [: s# N4 }
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
8 s/ V- x! P: u4 `neighbor-total
6 {* `. t% F0 \2 v& O6 T;;记录该turtle的邻居节点的数目0 m7 N6 ?$ h7 d) h# K1 d+ |1 ^
trade-time: S. B) C2 N) q, p) ?
;;当前发生交易的turtle的交易时间& i$ i& o& R4 Y8 t* {) o) R7 o. E! z+ j
appraise-give
" V" `, _; y: i: a8 Y( P;;当前发生交易时给出的评价
/ R+ y$ e! T# r# P9 U9 Sappraise-receive
& ~. \- |0 a& j# ]0 o. @;;当前发生交易时收到的评价7 a0 h! v, B& i/ x1 ~6 f) F: D
appraise-time8 s1 L8 @: x0 a4 t
;;当前发生交易时的评价时间 v% g/ D+ V! ?* Q& _) a$ w8 v5 C
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 Y6 \: e$ j. E* l7 btrade-times-total
& s- \1 m* H( Q2 j6 \6 P;;与当前turtle的交易总次数
7 z' i8 }9 d: F9 ~trade-money-total
+ K- X( h4 b% V4 l( ~5 v;;与当前turtle的交易总金额
) |" t3 |3 }4 {' d- jlocal-reputation( g% S' M% T; j: U
global-reputation7 z+ w/ X- m; [3 `2 Q- r) T
credibility
, u8 L7 n, r; p6 r1 T;;评价可信度,每次交易后都需要更新' l3 B+ F( y( B8 D
credibility-all
3 g" \8 I O; };;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
0 b4 Q9 `$ @( z- C3 c6 j5 D
5 U' S% K$ `. R6 k, i3 f;;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/ F9 k) f, i, C8 C/ v; d: y: ?
credibility-one( _# B8 V$ ~8 P4 f- B; ]% ?0 c# i* ~
;;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1 v5 |6 t1 U0 N: g4 d8 r9 F1 N5 r9 Y" |
global-proportion8 w0 R5 }' s8 F+ K
customer* o- e' o" i% }/ g0 Z) {
customer-no
* U; a- E. c Z$ u$ c$ O0 Qtrust-ok3 R6 G8 B/ Z! W% z5 I9 r
trade-record-one-len;;trade-record-one的长度# b j/ F$ J2 ~3 s
]
# d [' |9 M; h% j& u. y7 }/ J: o
9 J& G7 A& k5 ^* Q3 b9 _9 p;;setup procedure
5 q4 A {8 E( ?$ x/ B& T. q3 M: T3 J( Q2 h
to setup
' U# q. g% q! k+ L _$ _* d7 j
8 q/ A g# f. ?1 Yca
0 x3 ?% V# a% D+ i8 L3 o
# E O/ ?& _% ?6 O9 K3 Finitialize-settings" t" k& p# ~: t! i6 ?" m X$ b
9 ]6 A! V, V: B7 Ncrt people [setup-turtles]
: ^9 u7 o7 J3 L' w. ^9 d2 M4 F6 M9 l9 |, L
reset-timer- r( E9 t5 f9 A6 G+ N
6 @; ^% t$ O) u4 O; Ypoll-class0 Z$ m& h4 [, u- c0 b1 Y* W0 Q; K3 |
9 }: i) N5 _9 ~ R+ j
setup-plots) S0 L& N6 b* _: g2 z6 a8 |0 e
: H6 \2 D+ Y& A
do-plots7 M1 R* f( @9 e. x& r6 K
end4 M; j( t2 L8 n' y) ]
& P: {% ]9 C1 C, k/ D# Wto initialize-settings- @6 t+ O9 z' w
9 R" J; P, r3 S8 a6 q3 kset global-reputation-list []( D ^% y. d' x2 e% F- `( h' n
2 w1 v. E# z+ ]9 M8 }( I. R4 P) Y4 `
set credibility-list n-values people [0.5]
4 c& s8 K5 K1 F+ E7 `
7 h0 o5 `6 h! v- bset honest-service 0
" M4 A& G3 Z3 [6 h6 x# m0 M9 ~0 G# [/ E/ I# y+ R/ q! W
set unhonest-service 0
/ f. N, w$ K* F8 \2 A6 v
# O8 O% j5 y4 Dset oscillation 0
; ~2 z, d5 M# Z$ B7 m9 u- R
8 S! h9 A L# D2 g& [set rand-dynamic 0
- W) ~7 ^9 q8 n& W$ D+ pend- A2 m+ k+ P% i
- P) `0 r( \7 [# I& L
to setup-turtles
+ W" m, R/ W2 n7 x9 M$ Qset shape "person". s; \. N! b' |
setxy random-xcor random-ycor: y+ w; S5 K) S8 E/ p6 w
set trade-record-one []
; p' y" c, t0 T/ ?& R6 L5 N) A0 M8 k! t2 B1 h6 l
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 C, I. g% M* C3 V: V$ J
; \: y4 ?2 w9 W6 V( J4 w
set trade-record-current [], b2 p' Q' c: O, k0 j
set credibility-receive []) [' H1 M' X+ D% m
set local-reputation 0.5; m& @+ X0 S/ G8 s( S) }1 b+ k; x: N
set neighbor-total 02 o {5 h" q" p. U
set trade-times-total 07 x M% b. z& q: I/ F3 H, q
set trade-money-total 0
' p: A' _0 p7 n: nset customer nobody
- e4 B/ A5 i: q& @set credibility-all n-values people [creat-credibility]0 e- q) v! b# A4 o4 M+ J8 g
set credibility n-values people [-1]
/ V: |+ @2 P1 m) J$ ]4 ]! v7 V5 dget-color( q8 q- r' o. I. p
! P, k( e1 ` q, W% o5 Aend' S" i9 {& {; ]5 I) ^1 _" q
# S1 g, P2 A# e+ b J }0 ^2 }
to-report creat-credibility
- b4 z3 B& S/ y2 Ureport n-values people [0.5]
: _' V# z* B; [* o* W$ t9 _end6 ]7 p% |1 U. U2 o+ e; a6 B
4 _6 V" Q: y L2 Q, `1 w& o; T
to setup-plots8 K- G- L! } r! Z
8 [. A6 Y9 I! B
set xmax 305 y( ~0 k$ C$ `; r9 u' p$ X
2 r/ Q- p0 v) a* W3 T
set ymax 1.0
3 F- s% M) `: t
3 ?: `! O/ D! N! i% F: k; Aclear-all-plots* I; s& x% V. |+ R9 l
) i& V- x& R2 L0 d' J$ ?
setup-plot1
* o( \. _. ~4 r4 G$ y! J4 B7 r9 i% D1 o, K! D. t5 u i R3 L; u$ q) [& i
setup-plot2' I. k4 @4 c; R+ B8 ]$ S
6 c/ v/ Z* G# S# zsetup-plot33 O @+ v* |# @2 m6 E" N# \% z
end& F$ ^# z6 ]" E$ E4 Y
) Q+ R8 g0 O" Y8 o5 P W+ ?& Q/ j
;;run time procedures) C% d0 D6 q7 y, H) g, |) D
" N) l9 N7 E4 c4 M: j5 V
to go2 c6 t. [, m1 E. J2 A) T
+ z8 C- \1 n& Q+ ~7 M0 ]! a
ask turtles [do-business]4 ~2 R. H- X9 x* L) o6 x
end
1 }" p m5 |7 [; g$ \
+ h. k9 E8 }( S* S9 L3 kto do-business
4 l# r3 F( @3 \$ }1 o: k9 _0 K/ P' n% K$ y; |4 ]! H6 j/ V9 B
( w, e. i8 ^5 u m* d/ y+ Ort random 360
4 h. I+ |4 x" h6 s0 A/ w C" Q J8 }/ ?% x! `1 r2 G- x$ n2 E* u
fd 1+ g( Q$ a; V5 _0 v- B5 ]2 E- w
; M; i* z9 w( M. r0 x4 Y1 ]+ C% O9 B
ifelse(other turtles-here != nobody)[
* E T7 G4 ?' K/ K- Z4 y: p
) z1 Y2 K4 k, \set customer one-of other turtles-here
0 R* g* g: w! s+ }
7 {* I8 }% x8 ?1 c;; set [customer] of customer myself
3 t4 g3 P3 y& S( G) T5 U
/ I& S" a7 I1 o. \4 Yset [trade-record-one] of self item (([who] of customer) - 1)
5 l) p6 x7 O8 @( g5 U! l6 a[trade-record-all]of self
% `3 k1 n; C& ?( u;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 k& L4 b4 H! h* @
2 D( m0 s' A o0 fset [trade-record-one] of customer item (([who] of self) - 1)$ g2 r# z6 Z. @' q# m, ]
[trade-record-all]of customer
6 c8 L* W: U6 {. x1 W- k' u
6 x$ z/ t, K7 Q% E/ H3 {3 Z/ X" M4 D6 zset [trade-record-one-len] of self length [trade-record-one] of self
, i& W+ V7 g ?4 D! {3 E1 M) B/ L
6 l# u5 R8 n# x4 [* \) I) K, G" Xset trade-record-current( list (timer) (random money-upper-limit))$ H% S k r" t
0 q- d K Z* ]3 J8 nask self [do-trust]
+ i9 f$ f) }1 i1 j" @8 h/ y1 p, r;;先求i对j的信任度
4 ^! ]! {" r4 i; |8 L9 T- b
6 {5 |2 v2 i9 z; e" t- \+ W1 A+ N3 Qif ([trust-ok] of self)
, e! J% ?# F5 G1 g2 W) f2 {$ a7 R;;根据i对j的信任度来决定是否与j进行交易[
, ]* g7 h6 W* B" o4 w- Gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
2 e0 r$ c; q9 n, A# h& K' b! {3 {# A* f
[. A- ^* ]$ F( f/ [# W5 s [$ c ^
; f: s% ?) S& L0 `6 ~! a. {' @do-trade' d' m9 A/ U8 e0 n& L5 j m" u
3 I$ o! m+ S9 f( y) L
update-credibility-ijl
# Z4 E6 `( [* q( t7 x/ R: M
0 m6 ^9 {% K) c; M7 S: a) {update-credibility-list& j" c- p9 ^, B" S* {1 X
! C2 z3 b9 b$ M1 l# T& ?: X b
& t: [2 ~ f9 a: M* Q3 p: [7 X3 v: q
update-global-reputation-list
' {" O( W- Q) x3 ]( M
: I; B2 d+ _, J) J( o' y; e) `( [# Ypoll-class
$ D$ w- P! h I! E1 T$ T/ l6 M+ Q4 T Y' x! W4 e# W" @! S
get-color
0 x0 }6 e; ~) t4 P4 U! ?2 V/ Y, m7 T: M
]]% j" G5 z. Z& n/ c3 R3 g
( E Y2 d w1 n7 c# \/ T. i
;;如果所得的信任度满足条件,则进行交易3 y6 M& v6 l+ H1 [ u* {0 P3 F( l8 r
0 i/ l6 A2 b" A4 Z2 p7 _
[- V) B, H9 D5 I, Q3 p$ O. Y! N, k$ f
% ]! j0 \: u( g8 a3 }rt random 360
* q7 u: ]* z6 C0 w2 q. V8 v0 G4 K. p5 n+ G2 F) `+ p0 W
fd 1
' Y. Z! D6 K2 x! w h
1 R2 G5 ]/ |" E]
4 e b% f, ~5 n4 F. E% E! l: k1 M8 c: ^/ M: u. Z* W0 F
end
. y q* V0 B; d5 r2 o- Q( r
6 g/ d, l+ k% W" X$ U- f4 g( cto do-trust
9 F5 _% C+ ]# W! _6 eset trust-ok False9 A6 f! }- I' E( r
9 N" v& M% V& A' z# n, ] t! D
! X$ j% q5 Y' J" @$ clet max-trade-times 0; s/ e/ f! d( J( T8 W% P9 A
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
4 ^8 I) n8 G6 r# M% Klet max-trade-money 0
. k5 o5 M) U6 d' cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], g9 y) _) r$ p. o
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- U: [* Y9 s) l# b* v$ X+ O" U
! o$ T; h' H3 ?# r- L
5 S/ t& @7 n2 F" T; Sget-global-proportion
9 }) O1 n3 M- p* ~$ e0 [let trust-value
7 \% q0 t) [, x9 n$ dlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)/ g# x. U$ N( x Q0 h
if(trust-value > trade-trust-value). E, b1 I5 w: o2 N: j
[set trust-ok true]; C3 n" p' {3 L' u3 ?5 L
end, }& l% H1 I4 F2 x# F' s
6 C" K/ g* a7 e" b3 H2 V
to get-global-proportion
. |( J8 i, t) C) P) J4 wifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: A9 H. U& |) n |, @ j6 t[set global-proportion 0]
& A) [) g; f3 b9 S4 N4 L8 C1 Q[let i 0: R7 G2 a' ^8 D) y9 ~$ o- s
let sum-money 0
- ^( @; c( d; d! F7 ^4 Hwhile[ i < people]3 d( e* A2 ^% Z4 p6 \) j
[* ]5 k! a4 i. S6 g! P( n$ s. p
if( length (item i) b- a2 B# z! A8 Q. f+ x
[trade-record-all] of customer) > 3 )
1 v" K. @$ C; ?[
- L9 \ C4 L; ]7 J2 l6 h! y/ Wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
h) J/ [: t: I0 C' V9 T6 k& a]: W, F* | w& U5 W2 W1 q+ O( n9 p, h
]6 v1 ]% D+ r% s
let j 05 _6 p; k: c- `+ U1 J9 ]5 x
let note 0
. }- _% m7 c# ?; D1 @/ K2 nwhile[ j < people]7 c/ u8 O/ J1 n4 d, y$ B
[$ B% {2 Z" W5 s1 ]" H+ j; w
if( length (item i& W$ n9 K0 E( Z& N
[trade-record-all] of customer) > 3 ). `- e7 ~$ x% ^
[: p7 D% n5 O) K/ o8 [
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 w$ C. g- e7 v% n6 N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! R% g# m( K! k[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ X' o: [3 n6 j. q( p2 m]
0 b( b/ `. |5 | h4 G3 W]
5 p8 W( K" \9 C! Aset global-proportion note
2 A- s& [# {1 d/ m; B; B]; S- D* h u5 U4 ?: G% c8 i
end
* V+ ] I- W1 v
+ q; ~# w5 A7 zto do-trade
2 H) x. {* G4 s) T;;这个过程实际上是给双方作出评价的过程 @2 ~. |7 j' s2 X! R5 c1 H% Z6 a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
* f& g7 _" |& yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 Q( E1 Q6 u, g9 p) z
set trade-record-current lput(timer) trade-record-current
0 i7 ~; L% h+ f h: E, d" S8 C2 y;;评价时间 ^/ l1 s& e3 n
ask myself [8 h7 c# G v [
update-local-reputation6 z4 W- w, S7 E) {( ~( z
set trade-record-current lput([local-reputation] of myself) trade-record-current* Q5 o" H v; Y- Y: d4 o
]" T" E1 v* K' a
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! X$ ~. a) r5 X' o0 H, ?8 m;;将此次交易的记录加入到trade-record-one中) U+ T L( v2 H
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( Q: f* r7 X& f
let note (item 2 trade-record-current )
% |* y+ {7 q- r* V0 P4 h7 A; I/ ~7 cset trade-record-current: N4 B& m8 k2 t, {
(replace-item 2 trade-record-current (item 3 trade-record-current)); T" |* `- |" c% h& b& j, s
set trade-record-current2 N6 a9 z9 E3 \2 @
(replace-item 3 trade-record-current note); I( ~% u5 E S4 j$ A7 ?, Z
& y7 J/ B) S* V o E
# r8 E- n; ~0 P5 |- {2 V9 j# @ask customer [
! A* u7 a. ?$ v, i" zupdate-local-reputation
; o- U/ O" w- W/ n8 qset trade-record-current6 b/ x5 l+ B* a4 R% L, B. g% Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 u. B) u9 K& J/ i4 @4 E
]* U* Q/ ?4 v: O6 k4 b2 N
3 l" P( X. k6 [! s( {
% C6 w* j7 y' N, `, `5 cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: w5 v& i1 e9 N1 L
& g6 J* D; i! Q" ^set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 Q$ t D. L; t+ t x
;;将此次交易的记录加入到customer的trade-record-all中4 l* }" H- }. K4 q- {# K3 p8 D
end. p4 l" u+ S' D$ Y: ~3 t
* C9 n8 K$ u7 u/ T0 i/ L' Z9 l
to update-local-reputation* E( X5 n9 O" k; g/ i
set [trade-record-one-len] of myself length [trade-record-one] of myself
! k; T( T" s* F# D0 `% A0 q1 z1 ?
' f( O1 y' p. z;;if [trade-record-one-len] of myself > 3
9 O" i0 J2 O( j% u9 l. h7 {update-neighbor-total
+ p% }- J' u; B- v;;更新邻居节点的数目,在此进行
! m+ c1 x) ~5 Hlet i 3
0 A" N1 K' m. llet sum-time 0
3 U6 ^! q \/ n' z# Y! Pwhile[i < [trade-record-one-len] of myself]3 ~4 C! t% N% i& O& j
[& U: d5 \9 w4 y9 o; x/ _5 f3 H
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( e6 U/ ^, Q/ Y' F+ \% iset i
w5 s9 W: l) L0 x( i + 1)4 \4 Y, s9 L8 W
]3 E! Z e( Z; A
let j 3& e- Z4 y- Z! z* Z4 }' H& E6 s _6 l
let sum-money 09 G& J( k/ |6 p: f! i7 B6 J- m$ d
while[j < [trade-record-one-len] of myself]4 b+ @6 U( n, a/ A5 J' h. E
[" Y5 Q( m+ v( E* n" V
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)
0 i" `4 M1 ^ S. Q8 v. J, Dset j
1 u/ a! f; e6 G4 X( j + 1)8 }7 m$ m! r7 v: n2 j# [( l
]
1 p4 X& C! I/ _. l8 J {let k 3: J# n* |: V/ E) Y
let power 0
2 ]3 n( S3 |( _3 X" ?let local 06 w' m3 I5 Z o6 W
while [k <[trade-record-one-len] of myself]4 ^" L2 e7 p$ e& i
[7 I2 ^+ p+ x4 Q+ k+ _5 L g
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)
3 ?$ A: |( m4 M) H+ I0 lset k (k + 1)" _5 S) m( V4 S3 \6 D3 l* `) b: _
]
' k6 Q' w: z0 T# Pset [local-reputation] of myself (local)
; L& o9 T* _% `5 |8 yend2 o; X- B( r' F) L2 l
8 j( j. d' b, ~7 T1 Bto update-neighbor-total
) s$ s4 Y7 t2 o5 Y3 N$ D( g. _9 O" O2 X( V. O4 J6 K1 Z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- h$ ]/ }+ m+ S; f. G* O; w7 C, C" _$ D% Q% L7 @
4 U3 N) J( ^# a( @
end
3 F0 N3 _; z% G' M: d; @# ^
' z8 Y4 p; ^! c" D* s0 Vto update-credibility-ijl % \8 A7 Z; `$ Q
/ u% y1 N) I" \( D
;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。# c, S; h/ v6 E+ A) T9 O
let l 02 F: k) u5 V: ^1 k; u0 n f) x; _
while[ l < people ]
R$ _% V1 W! k# D5 p5 U9 R;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价
: h( H6 p" s8 n" L! e: o[8 V5 q' I0 t& Y# B3 A/ v, ~+ z2 K
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
) K6 Y' d: ]: \) B: {+ Oif (trade-record-one-j-l-len > 3)3 w0 k4 g, k0 r" n- s* 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-one0 C; I- Y' x3 w1 f* O- i9 a3 F
let i 3
7 }4 R5 |3 A, u1 ]. A @3 V; Olet sum-time 0: _$ ]" ]1 d* h
while[i < trade-record-one-len]
/ Z0 x( _3 g# V# Q9 k& P: z' n[7 b6 Z7 Z* D/ f- f7 R8 ~9 E7 l
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 l+ j* N$ Q4 oset i' S- x! I3 g* c9 p- V8 j* V
( i + 1)3 Y! Z ?. E/ L$ e0 A( A6 w
]& v' Z; G) z4 ~$ v9 Y1 g
let credibility-i-j-l 0
* l1 X- ^/ L4 V: f4 U7 B: Z6 x;;i评价(j对jl的评价)
) E+ ]0 B1 q" Plet j 3/ s i) g7 q8 o4 w3 U' l
let k 45 @; G6 p1 b& D- o
while[j < trade-record-one-len]
% P' n9 o1 t) n* S7 S& B* i* e[
+ X0 n9 H; h* W4 G& W- F! H! `1 twhile [((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
) O! u4 T$ ^: Y0 gset 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)
# @& Z7 V" T8 Q0 b5 Cset j
+ V& C! ?% z# r# k3 q3 n( j + 1)# v0 g! O& y3 z) W! H
]8 C- Y5 M- n. V% o/ d8 u; f
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 ))$ e# F W/ c0 k5 O
! e" s) X) n2 E, ]+ n
/ E+ F8 K+ X9 f! ^. l7 Slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); H4 ~ _/ ?& E h
;;及时更新i对l的评价质量的评价& x; s- Y+ g4 s( c$ O& t7 @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 r$ O6 h2 {1 m y" e
set l (l + 1)
8 p5 c6 n* N4 g]' e, ?! p n( u. n' n* v3 m
end
1 o4 _2 B, u m Z$ z! m
7 U$ r1 ]# i! e% o4 Hto update-credibility-list
6 q- ^/ }0 q- [1 T) ylet i 0
% z) e, L& ]0 V2 v# P2 ^+ vwhile[i < people]
6 G: [2 e8 f8 h9 s( m8 F[* W. P. J' l. U3 F5 w. D1 a
let j 0
$ e8 \2 F% L# J/ D% v# ^let note 0( Q6 X* F% ?; e/ X
let k 0% Z) k% A6 r0 _" L+ D
;;计作出过评价的邻居节点的数目! A: K/ C9 ~" b6 z; W. Z' |
while[j < people]
6 C4 k( }9 I; R# j[/ }* @2 m1 o* _4 r. z
if (item j( [credibility] of turtle (i + 1)) != -1)8 W- U/ H3 k7 I2 E; q. t
;;判断是否给本turtle的评价质量做出过评价的节点( _: P8 ?3 d6 e! @# J
[set note (note + item j ([credibility]of turtle (i + 1)))* d V2 l5 X+ I4 `/ N. @0 y
;;*(exp (-(people - 2)))/(people - 2))]# f# s1 R/ x% j) ^3 C4 j/ I/ a
set k (k + 1)
! _% h' f, g+ \]
$ R- v8 J& l9 t6 ?9 h( |set j (j + 1)* D0 d: Z. ?3 s; W0 A( n
]( @1 @. c! t& y; [6 `$ L
set note (note *(exp (- (1 / k)))/ k)8 Q5 K5 O' P" ^4 K9 x
set credibility-list (replace-item i credibility-list note)/ ~5 c m* m! e5 ?
set i (i + 1)1 w0 ], H1 X1 f* y' I8 B2 b2 Y' O6 G
]8 p9 t% ^+ N9 {
end5 e' [0 [' s x. j s$ O
% c1 m/ I4 h/ Z qto update-global-reputation-list
8 S; q; R8 R9 Olet j 0/ p8 v2 p3 x% }! V4 e7 g8 M
while[j < people]7 ]! O W) R' ]3 Y. F6 e2 [
[% K6 I% p% P6 |2 j
let new 0
% \1 s6 A! B ^; _6 J' s/ v;;暂存新的一个全局声誉3 i& l4 N! [- g* G/ m- o6 n
let i 06 x3 q. s" U; u g1 O2 x* F1 y
let sum-money 0/ {* z* l! ?; u/ D5 k N6 `4 |
let credibility-money 0
+ R+ p( B; C4 Y) t8 ~% o/ l5 a* rwhile [i < people]
1 L' C! {5 t; B$ L2 p/ J[
( x& e G, {7 jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))); T* J8 H2 [5 H) a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- c2 Q k+ Z+ pset i (i + 1)
; S* h$ j& i9 ]5 t0 N- f]0 j l2 E6 r+ S3 F
let k 0
, P9 {8 [5 |! D' q) t4 _2 Clet new1 02 y6 ^# W, v: }' u
while [k < people]
5 l1 [: }- H0 ]* a6 A$ T[
5 Q) \0 }( j! {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 G- _7 d0 q! b; n) n% T+ {set k (k + 1)/ j* u& U4 I, ]% X
], Q2 _9 s# q# C$ r2 i0 S3 y% F; R, C
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& u. z' T% a# _! _set global-reputation-list (replace-item j global-reputation-list new)
# a* Q3 Z( A2 \% M3 E ]5 L0 ]set j (j + 1). j0 g" c2 w* O% c3 a
]) K: p( D b4 H3 f1 i% A/ S+ E
end* e. D! a# `! v5 r( _) X' _
$ `2 a5 h9 z$ E% G
: ?; O9 y2 f, E- j
$ u B; z* ]1 k: q; H
to get-color
" e$ f4 v4 [: ]4 A6 _% B/ y7 i. T, F& M7 n% m3 e
set color blue3 @0 `( Q4 r% K% l
end7 p# {' p: P* B* F9 i
4 ^" U& w" g3 \) i1 O
to poll-class9 Q: c7 ^: R+ h; e6 q
end' y' m9 h( L- `
/ F5 A4 B5 W* x8 Q( N9 ^to setup-plot1
2 W4 f/ J3 i7 Q. P; g" r# `! I! l% [. `3 g9 u
set-current-plot "Trends-of-Local-reputation"0 j( |; V3 s- v* J# X- ^) S u
; Q+ Y: z5 d( J/ o6 K# dset-plot-x-range 0 xmax
, q6 c; }0 U3 A0 o# v& b
1 f; T' C, k! |1 Iset-plot-y-range 0.0 ymax i; Q' a( X- A# L, T
end
" J K9 I# n5 a& ~# n1 J3 }* B; L' R& ~6 E
to setup-plot2
3 t( l# R* @# g. [4 s: I5 ~) Q$ ]7 v& c/ h- ?7 x
set-current-plot "Trends-of-global-reputation", c( i( R# n- D
, X! J6 U: Q9 T T7 N9 M3 rset-plot-x-range 0 xmax
; a X- G3 a2 G2 s/ G8 P
2 X r: l! ^# a3 jset-plot-y-range 0.0 ymax
d2 x3 `+ A+ r- E+ ?end
' [, _1 C* g4 [, h. z2 g: j Y: {2 y! ]; h" }4 i, H4 q
to setup-plot3
" r+ Q+ j8 {: E1 \& o
. U8 h' v3 I& @% O' hset-current-plot "Trends-of-credibility"
$ ]( E' e* u, P) B; w) l, R8 g1 ^. a L4 U( ?: f; j9 W
set-plot-x-range 0 xmax
2 m+ I; A/ _; T+ ]. V% Q+ x( y7 e# i
set-plot-y-range 0.0 ymax' x/ U' l) f3 v7 g8 J& S0 G1 ~
end! {4 C! a6 s2 {7 z3 K$ A# S
* d( t( m n4 T' ^$ O# T
to do-plots
7 ~4 V$ {0 w1 e9 V8 Uset-current-plot "Trends-of-Local-reputation"
6 l' M" X4 O/ ]$ u3 F/ Hset-current-plot-pen "Honest service"' r# \$ N( O$ R* F. o# ]9 q' r
end
% S3 ?5 V( w! z6 u6 I) b8 h2 w; B1 c B8 ]9 ~8 s
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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