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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
5 j2 m# C1 o1 e: H3 z& o/ Bglobals[0 i: j' r4 P, `/ v
xmax1 L0 m* e: R- c m. O
ymax
2 q. R- b. u z" h; bglobal-reputation-list; p9 b0 i# M/ w& R' [ I6 s
9 \/ W9 x! [( P% L2 z) ~2 w! k8 ^: U. F;;每一个turtle的全局声誉都存在此LIST中+ I! e- W" P7 E; e2 x" a k
credibility-list
/ I d+ S- k; w1 p;;每一个turtle的评价可信度
[, v' H8 _4 G T% W9 e) j$ ^honest-service
8 z/ _: m3 ~% m: ?* @4 g/ K) ^8 Yunhonest-service* x; v6 a9 q% x9 [" C1 I* z
oscillation
+ c% f$ \4 }9 b$ F" l8 Yrand-dynamic
; U' K8 i6 R0 _. E9 g0 e/ T]
1 [: \$ H4 p, p/ U% X) d, z& e; E9 ^) l% A/ H6 s) P5 E' k* W
turtles-own[
9 I3 B) X+ e- L1 j' l& atrade-record-all5 }9 M T, W F% a. k; ^
;;a list of lists,由trade-record-one组成8 ?& G. r' }0 `
trade-record-one
+ `- N. E2 ]; ]7 d8 a# q9 t i;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
$ |5 A X8 y A: a( H
6 n: K1 ?7 L. x( {; [5 G5 J;;[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]]
, J/ m, t. N G4 c S( I8 e& W4 Strade-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+ X; w& E1 k1 Y2 ~8 _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$ H7 J2 ~) x2 D) Y8 c
neighbor-total V4 r! j8 a: l/ u* E0 b) F
;;记录该turtle的邻居节点的数目
s% t( i! [4 Q4 _( M# Utrade-time
( g K+ j# n4 j: `+ h Z1 H H' Y;;当前发生交易的turtle的交易时间
- P4 @- J) S0 P$ w( r3 [appraise-give$ _# V) L# a3 p: ~: G y
;;当前发生交易时给出的评价
! J7 A/ s- J9 q, Aappraise-receive
4 W3 b% X, C c) w X5 ^$ P;;当前发生交易时收到的评价4 @5 l/ `/ U$ O: ^
appraise-time8 X0 N7 ~8 p" S/ Q& M# V! |
;;当前发生交易时的评价时间5 t" F8 t3 ^0 k4 L2 {5 t
local-reputation-now;;此次交易后相对于对方turtle的局部声誉! A' _0 t2 j* J& V6 }" A
trade-times-total; K( l7 M+ z; {& `# V
;;与当前turtle的交易总次数
# O+ b- x- T8 B5 g) a/ M$ w! R! Ztrade-money-total
6 C0 C/ l( c e+ R3 h6 g;;与当前turtle的交易总金额7 _- l4 k0 o9 ~0 J6 F- {
local-reputation( N; \ T4 `" g4 \5 }
global-reputation
2 ]* F9 V4 z" W* U* n+ k3 Ocredibility. ` R0 Y5 {0 \( S* [( f8 \
;;评价可信度,每次交易后都需要更新1 a; @8 V2 t$ I( \
credibility-all
5 C- }: k: k' F' U; J9 K;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据9 o0 }4 Q# H" E- ]8 Q+ X- |- L! q
6 c3 g/ L3 N3 H" X+ c
;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5' r7 r8 v& a- w
credibility-one/ X' r) h" z! ^/ `: s# ~) A8 e" _
;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
3 \% d. N1 l" k) zglobal-proportion
y4 W7 s: {5 a# L& Q+ Jcustomer3 L4 d/ x: A! `0 ~) m
customer-no3 O! z# S2 T% ?# h
trust-ok: c: ]( Z6 d5 {
trade-record-one-len;;trade-record-one的长度( W @4 K+ `# Y' g+ j
]+ i( R C' y5 H0 w# {7 d! W5 C
5 D U8 d8 A! Z;;setup procedure7 z+ u1 ]$ ^" [' q' g2 Q8 m
! M8 p1 j# h& S: c, z& J' |0 Z& V; h
to setup
M5 x0 K) K+ e8 ~! ^8 Q2 l( y) b: u0 }/ z: ^& S4 M c
ca
$ y. y+ _" @: P+ n: d- @3 g8 |9 t5 ^$ B7 x& f
initialize-settings* z& G. Q( W- D& p, J- A
% Q9 O, m0 ]8 \) G
crt people [setup-turtles]
- _5 M$ M: D% n7 m$ E0 [; _5 \& K
reset-timer
% w! ?, T. c f3 e; M% `0 X
& r9 U& H( a$ D' `: X8 Fpoll-class6 T$ N0 J3 G; y
* D) h! E: m9 Z; @8 F/ |setup-plots8 V0 A& H6 w/ R
8 ?, E. F) X8 `! y9 x* x6 B
do-plots
( C2 J& T* k/ }end
- p: J, Z3 p! @/ A% t' V/ k- M' o3 W1 c2 J
to initialize-settings
. t! B/ T5 V2 u) {' u4 G) f2 s
6 X' O4 k) g: i% V) Vset global-reputation-list []
' ?1 P7 j5 v" S9 _9 d' v
& E1 }- z; g. Tset credibility-list n-values people [0.5]
7 G( ^+ L' g3 F0 g) N6 U8 g2 e" b$ Z, N6 R4 e* Q# s
set honest-service 0
$ e3 U0 u Z2 W2 n
5 h* b5 d3 e% M b6 D% w3 kset unhonest-service 0! h8 _8 q9 H3 g* O3 R9 |
1 n& F7 P1 C+ T
set oscillation 0) b$ p% m7 y! a! I+ B r
. e# a9 |+ F) p- w, Bset rand-dynamic 0
4 c1 e ^* a N8 E) s0 ?end
% C, ]# Q+ |3 B7 {5 Y9 j$ k% H& Y0 d+ U% [$ G" F. v6 z
to setup-turtles
: F% a" R4 y- p/ y$ t6 U4 C& s" Nset shape "person"0 f& ]2 ~! y& v( U3 X' ?
setxy random-xcor random-ycor% F k7 `9 {1 y9 _ p( J6 s! Z' `
set trade-record-one []
( u" l4 f; p* A6 m0 N' ?7 [1 m1 b+ Y7 A i9 [( W1 [8 d/ M
set trade-record-all n-values people [(list (? + 1) 0 0)]
- {: n3 }3 S$ T! {
" `9 z0 ^2 \) M4 aset trade-record-current []
# E% b$ ~6 R/ w1 _7 k: Z* Qset credibility-receive []
$ x: Z1 i9 y1 \, T1 Nset local-reputation 0.5$ i$ j* c2 T0 Q& f: Y. {
set neighbor-total 0
8 M& `. U, j$ g9 L! e7 U9 zset trade-times-total 0
4 `( h% j: z, P* }' p9 z8 tset trade-money-total 0! y" i1 n# S) g V4 |6 z
set customer nobody* b# y2 S P2 T5 L: i' D
set credibility-all n-values people [creat-credibility]
" b A; N, [+ |4 A3 P1 Vset credibility n-values people [-1]
: Y/ P J- q3 F- Fget-color+ {+ |0 v1 |/ x0 `
4 x0 V2 _/ x: X4 X, @' P& E$ Uend
; i$ j8 ^9 ?$ C r; X8 g0 \
3 \! t6 M: T/ q+ F( Y1 r4 lto-report creat-credibility* F) r+ x6 E* M
report n-values people [0.5]
3 Y( b" n+ i: ]; Q- Cend, R5 ]3 b: i2 p$ w4 g1 E( s
& }7 c# ?! G, \7 O- Rto setup-plots9 y- Q% ^& g. H& z
$ K- h0 [1 r5 z% eset xmax 30+ i/ Y; |) X- u' H4 P
]' @' h2 r4 i( Z' t/ p8 [/ y
set ymax 1.0
5 J9 @3 Z i5 U; o, A1 b3 G% k# l: J" l# d8 `& v( ~2 J4 f
clear-all-plots( v1 ?+ @6 I) [: A; C. l
% o/ K7 c3 i8 Z( b
setup-plot1
( d; P$ S3 I. \- e( ^/ ^$ [- r
setup-plot2
0 x* l' w9 g% x( m: [6 d) l9 G% ]% u
setup-plot3! F0 g- u$ R( w+ R& L
end
% L4 h, J( k, `. y4 i% y
+ a# X" ]8 j6 i2 {# b2 w0 u;;run time procedures3 h* i( ?6 Z c4 D
. ~5 m9 g+ s" |7 h/ p5 B+ C% tto go8 w' ] D- `! w
- A; i7 y9 w5 d$ [. B" r* O5 n, X
ask turtles [do-business]
$ }$ A) P, o8 {: Z& S l1 Aend4 l5 _! d2 E. S0 Q K5 D! c6 R; [5 W
3 Z W/ B0 m4 b9 Uto do-business
9 D+ c; J' J4 ]8 f: M4 Z& ^% L& @) j" C1 g% f/ Z4 d( _* D! {
. |2 a; U6 j1 P; e' E8 \
rt random 360* H2 u7 i* N" q' |4 y6 d" ~ _$ `
1 n y) U) @5 I7 H. \* A/ {fd 1
: L6 o( ~" `8 k' @6 y
- u5 z: H! b$ M, u6 P: pifelse(other turtles-here != nobody)[
- p8 {% x3 e2 x% @+ O" h% j( K0 u1 i
set customer one-of other turtles-here$ s; D# ~- K! V* ~3 r
3 {- c; S7 o5 ~0 {5 ^( m, U7 s* Q1 r;; set [customer] of customer myself
: R1 E' F, h- y9 H& |; F6 i7 m# P
+ Y( i5 U: c C6 k Tset [trade-record-one] of self item (([who] of customer) - 1)
2 U9 ?/ C+ x' T. K+ T2 _6 Z' p1 \[trade-record-all]of self: M3 ]& B" @( L1 b9 T* c4 a2 S
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 [( C7 C- a% e6 a4 z8 b9 s0 J R2 H' R) R d4 [
set [trade-record-one] of customer item (([who] of self) - 1)
& @$ [" ?/ ^* g# W9 w[trade-record-all]of customer
/ }4 k+ I' S5 m* C; P7 l4 @* b. k. ]
$ ^9 m4 g: a! m/ D* z8 `7 n6 dset [trade-record-one-len] of self length [trade-record-one] of self
; X( d# d" v8 S" C/ T/ e7 B% O8 ]9 o% w+ _( I# L7 c/ X5 {
set trade-record-current( list (timer) (random money-upper-limit))3 b7 [) a4 J9 D/ \$ @
3 H* k) N; w. rask self [do-trust]
2 F/ H) F# L: y7 t/ @3 [2 }; R;;先求i对j的信任度: j; M" W; q- A" K5 m8 x2 X# q
. A7 f. K/ a4 j0 {0 i9 S& i, |
if ([trust-ok] of self)
4 c- u" ^1 I& E. S, v8 S;;根据i对j的信任度来决定是否与j进行交易[
6 `2 F. n; \. a" w: Q- Task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 z8 l. c" R9 P6 m' O
1 K9 F; ~- |+ G+ G; T[ p2 K6 ?% ~! C3 k; F% l7 D
8 p" w# \8 x/ a' C" |+ E& Udo-trade
, u: v/ M: r, v6 d/ `3 x1 l; m8 q5 i1 m/ G% M/ I
update-credibility-ijl
/ W& _5 {* t( a4 T' X( [; S$ w4 V. A. J9 O. T7 Q
update-credibility-list
/ k0 [. z- [/ c7 [" }) l% w; \2 Q: O* u8 e6 x, {9 o8 q e
; K) y' D- q4 s' r4 r
update-global-reputation-list7 X; H x+ t1 g- L! v' c0 w0 y
2 E3 h& ?, k- G8 V$ m# A: K
poll-class
3 ~& U: t/ s* Z8 B& }& T. ?4 l4 k: y p8 r ]( y
get-color
" t6 H. @8 O6 f! E- A9 k* i1 ]% w1 N7 u( U( o# V+ Y# |
]]
! q- A" s6 N+ Y& H# o# u! V# V; Q: u$ j4 @
;;如果所得的信任度满足条件,则进行交易$ ]6 J" r! F& s& {! o
1 ?, U$ h4 Y& F[
8 X. Z. W$ n Y
4 |+ E9 K6 E. M) p5 M( [5 Jrt random 3605 p$ G9 q8 A- o9 c. ?1 M2 [: \
+ x# @$ ?+ y# f# n; J# V! M8 Ufd 10 |* L( p, @$ v1 L/ z6 N- Z
9 i: H' {# \% K* A]
" ~0 g0 p8 m, C' g8 u2 _' Q" B- o! }, n8 O% x: _4 }# q
end) [$ z- ^% s0 b
1 I. L( [: P, Z% {: J/ p8 b
to do-trust 8 z, d1 y3 d P/ k5 }) V0 K
set trust-ok False
/ V, J z: a/ n9 ]; [- x2 P d
4 `) ^! E+ v3 V* h3 r2 K! |+ e3 @2 O4 h& _3 |& h. e
let max-trade-times 0/ a7 d% u& c& P& Y; W" _, h. P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 ]7 _; Q1 e7 o! |5 @! e$ d1 _
let max-trade-money 0
7 U D/ t6 R" n J5 gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 \ h5 a& n* V4 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))
, P( |" m& W; g0 m( T7 A2 S d* B$ e' z3 X
0 e% Q5 `4 ]7 K+ n0 j/ Z! X# n4 f: |, q
get-global-proportion9 x9 j5 ]' }7 C4 N4 I
let trust-value
0 w4 C5 @2 t: a! r& d' h2 e( rlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! x4 N, r' m5 h( N9 W
if(trust-value > trade-trust-value)
; \0 ?) L( `5 m7 }* ~$ z[set trust-ok true]* `6 F$ T9 U, u3 X; C% C
end
! S4 L- e2 r8 I$ @: z" R2 y9 u- @# Q+ v0 K) ~
to get-global-proportion
" Z, F) V8 r0 f# I9 k) V3 V3 Uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# `: x( I9 N! x0 @# B[set global-proportion 0]2 i. k) w9 m+ d2 I
[let i 0
! K* d" A& s8 rlet sum-money 0
- h: a1 I! G' U/ Y% Kwhile[ i < people]
: Y1 Z; T" O. p: P[
6 i( l, Q8 g" vif( length (item i9 i; z1 T+ ~$ z/ M
[trade-record-all] of customer) > 3 )) ?$ X0 |2 X. [! S! @! }) g5 \3 o
[+ }' ^% H' u# v, L
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ T% t. W6 b+ r9 K6 G; X& n6 w]
5 z) n4 ^# k+ w5 L: \: P0 \]6 d# E: B) l# ^
let j 0
4 v% }+ v X$ t7 ^7 Flet note 0
2 U6 i/ G9 x( O1 a' zwhile[ j < people]
" f: |* G4 k9 _: ~% {# v[
2 }* S8 X+ Q9 [# y qif( length (item i
* N/ C- J0 u' p4 Q& Z[trade-record-all] of customer) > 3 )
J+ i% {3 L; n j1 U4 C2 Y[2 j0 g0 r$ q+ P A* F: d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' ?% D* Q$ s2 B: ?7 m8 L9 |
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! [: G4 }8 Q" [- J; U( _# _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 `: E b: ^5 {
]$ ~4 m& H: d6 N1 H
]2 ]& Q3 |2 S( O- F, U+ l
set global-proportion note
0 W5 ]% [7 r! T]$ ~- R* r6 `+ F+ m u! I
end
% ~% {% N( \% N* W2 x
6 g% o4 p" B5 \0 cto do-trade$ I! J! y' O1 W+ n" R+ G
;;这个过程实际上是给双方作出评价的过程
! ?$ E2 E. \$ z5 P; Y# Y2 w* Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. x' e$ I8 {+ o) |3 M4 L* f+ X7 t! |, A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 L5 |& a' [% m) _( F4 g3 o- L2 a
set trade-record-current lput(timer) trade-record-current
6 s. }0 A4 d4 v2 U5 k;;评价时间
5 g, i, u b9 T/ X& |ask myself [" ^! c% G& n+ [. j' m0 K
update-local-reputation
3 j# d* m0 r4 N6 c" u6 u7 ?1 w) qset trade-record-current lput([local-reputation] of myself) trade-record-current9 a! M9 M4 [# G: E3 c# e% J
]5 f( [* ^$ ^+ i \5 W
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) ]& G! d5 \. b# P" x" C;;将此次交易的记录加入到trade-record-one中
+ R D% ^! X3 p% Qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
^5 a: a2 g) R! ^- blet note (item 2 trade-record-current )! ^% z; c! P4 \8 l. m
set trade-record-current
! F7 d' ^5 p- O+ {6 v2 }(replace-item 2 trade-record-current (item 3 trade-record-current)); N8 {, l- o ~+ y
set trade-record-current" g5 Y0 E6 f5 M/ v: ?3 b- D. A
(replace-item 3 trade-record-current note)0 d' f9 i- b- p0 K# C
8 z8 ?7 X' B& V) K+ ~) K% v5 F
, F9 Q( ^7 l$ Z* }ask customer [
) _* K( Q6 s; R S3 a% S" Xupdate-local-reputation
' Q+ w) q6 F1 W, Rset trade-record-current
; O4 F4 z: m5 T( N- j, V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ Z4 f% S2 v c( h) ^% O2 V: ]
]0 J" a; `0 I: G0 Q! j3 }! z
& M4 l1 N+ N. h6 I; g, M' C/ t- y! o2 \3 g
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' ^$ \+ u( v9 [5 D0 \
4 S2 y) g& E" j1 l" U
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: N# n) M' T( W: j+ J9 t;;将此次交易的记录加入到customer的trade-record-all中2 ^& [7 V# B: X/ `0 ]3 K5 B
end: ?9 m3 _* L. u- ]
* Q- w$ l, u, q B
to update-local-reputation8 E4 A) A' ?# ?* S) |' M; B7 D$ ~
set [trade-record-one-len] of myself length [trade-record-one] of myself8 T+ m+ Q- g+ A
$ V0 Z; E9 K; G% v) c( \5 }3 l/ b4 e( s. X0 s
;;if [trade-record-one-len] of myself > 3 7 w; I# I% Q. X& r8 c+ ~, z2 G6 s
update-neighbor-total
' S, M7 X# }; e9 z/ f1 P+ ~6 c;;更新邻居节点的数目,在此进行
/ o' G/ ?6 Y1 p% M: B* Flet i 3
+ I! W1 q& \! d8 l* Mlet sum-time 07 J8 B; q+ p: V1 I9 e6 p
while[i < [trade-record-one-len] of myself], L: v6 n# U! p* T+ S. @
[3 S I5 ?5 Q8 J8 r/ q2 V
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 Z9 K$ d1 W% ` J* Mset i
0 S B2 M# z1 V/ C! o( i + 1)% a. j3 z5 ?' r; e$ _
]
- o6 c8 V. _9 K$ Q: s7 {let j 3 `3 d) A2 v4 [ l' P
let sum-money 07 l6 Y: U! J7 R1 h/ t( y5 a
while[j < [trade-record-one-len] of myself]
; _" W/ P* v: y& Y4 ?- q[1 |- W+ `$ v0 f* Q- I" l( f
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)
- y7 i9 A& i7 q% Lset j0 l) e( K$ ]& j" g7 p
( j + 1)
8 V0 j- E1 h) G]
! C: h, w; O+ X) S, V/ I Dlet k 3/ f3 Z( J+ o( \5 l
let power 0
: {( G: N$ f" R+ H6 j+ clet local 0
7 ?; `$ h+ K. s" e* E9 Jwhile [k <[trade-record-one-len] of myself]% h3 I2 [, F! @
[
0 H& f% ?8 a1 oset 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)
5 u' O8 ~9 f* u1 cset k (k + 1)
9 I! J! d. J% K]$ [- }0 R \- o0 o. ^: e
set [local-reputation] of myself (local)
% s5 A d9 o5 r2 Zend9 u2 k' I9 }- i: G6 j5 X
2 V- {4 f* I8 _& vto update-neighbor-total0 o( t" x2 d& D8 H2 ?3 A
; G. |5 C" u. {! f
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. _& k% ^5 u" j7 [7 V6 N* k( P0 C3 I+ ^6 }
8 L- Z+ e. K7 z6 O* vend
2 }3 u; J! T8 q- D4 ~
8 A9 T* N! q' w4 mto update-credibility-ijl % B4 b) D! o+ K! k, _# _
/ c% I6 S4 b) F( }1 r- `
;;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。
& [ p3 ]" z/ `: c$ d- Dlet l 00 i2 K2 W% Z9 a) ?* e' w
while[ l < people ]
9 U4 k6 @6 A- r/ h;;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
7 k( s' A9 e# {6 C4 K6 J, D9 g5 p[
, R$ }% T' F% Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
0 K7 U3 R P. M8 t1 Yif (trade-record-one-j-l-len > 3)
1 z! n" E& B( Y[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
2 C5 y' L! `# `$ nlet i 3; x0 j% x8 }* y5 f2 }& ^/ O
let sum-time 0! J& J( \ W2 F. c; X1 [
while[i < trade-record-one-len]6 i! l8 [! }" l( Q* X" ^6 p
[
0 V9 X5 I; s7 |2 |7 @set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 s* L3 B* ] I/ M
set i) z1 z8 E8 F$ Y/ J! B; u6 y
( i + 1)- R& d. T1 F/ b Q# F
]
# ^7 S3 a c: B1 flet credibility-i-j-l 07 y3 H; @- i8 k& V2 f
;;i评价(j对jl的评价)) O( V/ F) q' Y2 t; L9 V9 G
let j 39 I+ C$ t2 e; v- I: O$ M$ M: w5 V
let k 4
4 g; C* \" ~; \$ ~. Lwhile[j < trade-record-one-len]- m: {( Z$ B# N* Y* Z& j7 g
[- D! n/ s1 }7 v# [' A
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4 t* K) x9 g F
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)
. A3 F) U$ [( q8 `! vset j
8 D7 B. |" H# j; A0 r" c4 |# a) v( j + 1)4 Q7 V0 S! B9 O8 ~* ]
]
, T# B4 w" z J* \, Pset [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 ))0 {" @# x! q2 f; s* h! ^
( A0 J' u" r S: t) c4 I8 d8 S
6 w9 B. [) @. k; a: a- hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, i3 p C; v4 L* a;;及时更新i对l的评价质量的评价
0 p9 @" N7 ? x4 e3 h6 W0 k4 Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 V: b! F, T" y p. x* D8 h
set l (l + 1)
4 e" d; i: N- U, b]
; J# [! r$ V: {: Fend
% o) F& ^% O$ Y( N9 u4 _) t" L* x( k2 X8 u
to update-credibility-list* K- ~* X: ]) }7 M: {0 ]
let i 04 Y. D" l( J& P+ @3 l/ y$ J
while[i < people]
1 c7 X, [5 @3 J, o' \+ i[
' @- O& v% n+ b4 J3 b+ Plet j 0. g4 _' ?, v0 [* n' H+ `$ J6 m
let note 0# c# Y6 J2 |0 v" n
let k 0
, F9 }4 h# j1 i# n- g1 L9 r2 B;;计作出过评价的邻居节点的数目& l, O0 _) J$ n
while[j < people]* d& {! s8 I" h' w
[
7 C3 W2 k- K" w2 u8 |if (item j( [credibility] of turtle (i + 1)) != -1)
4 ~2 v7 R9 S5 o4 v& t# C;;判断是否给本turtle的评价质量做出过评价的节点9 T8 L! c* B4 e/ t& M5 N1 Z
[set note (note + item j ([credibility]of turtle (i + 1)))
u: _( @1 P/ m% ~/ Q;;*(exp (-(people - 2)))/(people - 2))]7 U' u) @5 D- A8 Q# i
set k (k + 1)
1 U5 F$ F- c4 d: G# T. Q7 l5 P]
# L9 f) }0 W! O% u! Eset j (j + 1)
6 F% b) V; u% N# d2 Y]
2 o/ ]- F I" f) \; p% ?" s2 Z& k: pset note (note *(exp (- (1 / k)))/ k)
) x+ w9 C! r6 bset credibility-list (replace-item i credibility-list note)
% T" Z/ p( z- @8 N& bset i (i + 1); \/ P# Y) i+ L3 i
]6 e. ^# c5 T8 i' G: ^/ }$ T- V% W
end+ k6 W. e: D7 l y
" ^* m* T8 T* S y5 U a ~to update-global-reputation-list
' T1 s$ u2 s4 C3 j- Q( Zlet j 0$ E' e* A# f" j
while[j < people]9 ]8 }% Y/ W3 F5 h2 q# p$ `
[
$ i7 r9 M" s* c. ?/ Y1 ilet new 0
4 w/ U1 r T5 H4 ]- G;;暂存新的一个全局声誉0 s) [ v9 g' v( B0 S
let i 0
$ R* t* t5 [( l3 L" v7 N# j: p$ Glet sum-money 0% F# G, l0 N+ z3 Q) Q- f0 {2 p
let credibility-money 07 G* C1 H1 J' J) j+ @' Z5 X% n
while [i < people]: l* R! X0 M) S+ O3 k, A: V5 y
[
: o& t; x Z6 Q$ B- i3 xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" `' ?. t4 A }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; r' }8 H5 @6 h) `+ rset i (i + 1)) q0 i& K; X+ ]" v1 [4 q
]: K. h1 }) n! ?- i4 o; R: }
let k 0
! t- \8 c2 W3 E7 {+ k6 ]let new1 0
2 P) e+ [8 a9 J$ A5 B5 h2 S) [6 owhile [k < people]0 p8 }& q6 _/ E. J. U* Z
[4 i5 [7 K8 w3 v8 P% s: 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)
6 J# o9 u' m1 H$ v) v/ Aset k (k + 1)
+ O+ u1 K4 H1 J/ ~$ B" v. t7 v7 @]
! t' G1 [4 e( G$ `# B8 wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 g0 y! I2 B5 \+ D" j4 cset global-reputation-list (replace-item j global-reputation-list new)! L _/ k, j2 a1 V3 e* S' E2 K5 l
set j (j + 1)
/ V- ?2 \! L: u0 ?# k* P; U r]5 |/ |0 j" O6 Z; i; s0 ?5 G2 h
end$ ~! P2 H( ?( b3 n# o8 B* K6 |, S
6 k( g8 B' q F/ Y! P
3 l. e1 w$ v& N! k2 n
6 d/ z3 F4 l! A4 n$ g1 S: @' l8 l
to get-color3 X( A. e+ n& |& F k. g0 v/ M
' e$ w$ Q4 { ~4 T0 A4 R
set color blue
5 k5 G. S1 \' b) Yend( N7 Y6 l5 f9 r4 q7 Z' @: o5 w
+ u; J+ c- t! ~to poll-class! ^: o( k8 K3 ~& J2 y
end
6 \9 d t2 v- d9 o0 H. Q# U+ S( z2 q6 R0 T
to setup-plot1+ V. B( J1 m7 D: D
/ x& V" o) A3 ^/ n- K3 j( oset-current-plot "Trends-of-Local-reputation"
9 @- C" r9 G3 n. x" j# {- t; q0 N8 @0 `) Y, z5 A& A" b k
set-plot-x-range 0 xmax- B. I. V v3 ]1 K* K
+ U7 {$ O9 m/ U
set-plot-y-range 0.0 ymax# K$ F/ w# i7 i; k/ h
end7 E& x2 k5 W1 L# F" \
( `4 {% I: W' u4 u6 `to setup-plot2) w5 t* B) o( m0 F7 f5 l9 K# {
# l- q% X, F% `: X0 H2 w
set-current-plot "Trends-of-global-reputation"
) x' L# v3 q, v- N* G' P0 \* [% ?' X3 h; `/ {& t E
set-plot-x-range 0 xmax' b( D. X: c* R9 |0 `
# ]4 J$ U" G9 g: B1 a
set-plot-y-range 0.0 ymax6 j* D6 ~* n I
end" `- C: X5 s! e
& P- p# u- b& O# u: I5 Bto setup-plot3
# i# Z4 s9 j1 T4 C) |6 v% e. p" l
set-current-plot "Trends-of-credibility"
. D) [4 L3 @5 _& C8 E, r* a# j+ g8 B" s, n# ?; G
set-plot-x-range 0 xmax
; F" R2 \4 B+ `! `, `9 w; G2 A3 Q6 O0 l% e
set-plot-y-range 0.0 ymax1 S5 Z, s7 I x
end1 G* @2 k+ ^7 K8 C0 Y/ E
3 C" r- A( Z2 d: Xto do-plots
- V( V& f# p1 l+ @7 Zset-current-plot "Trends-of-Local-reputation"
0 G6 W- M9 j* B8 F: g. `set-current-plot-pen "Honest service"+ U; Y- L. u G- V
end2 E) {- Q; ?' g! J' i ?
7 B% M8 W" O7 J5 y0 G[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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