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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
" s) s4 }# f! }1 k* N3 hglobals[; W8 K9 J6 `3 l+ o. W% K+ i
xmax
6 ?8 C- L: x' M. Y7 p/ j S" _ymax
" _+ l! c2 {1 L$ z4 \: [global-reputation-list" D& `" ^7 {) y$ L/ Z2 y) r/ {
0 _, H/ U/ _6 T;;每一个turtle的全局声誉都存在此LIST中
# j+ x3 d2 M3 }credibility-list( h" s' x) @; T
;;每一个turtle的评价可信度' z" _" k4 Q) ?
honest-service) a: w0 r$ }0 V9 U# U0 J( O
unhonest-service
. v# y; p, W3 v9 H. P/ Toscillation
$ t" f6 B) i: Grand-dynamic
: X' V5 R) `* V]$ P9 L6 Q! ]! P w3 p* H& H- X7 y& n
9 E/ B% {7 A; D: tturtles-own[8 T/ v8 z) I" G: B4 I" y3 E: O# d! E
trade-record-all
) F$ V; p4 N2 d+ E;;a list of lists,由trade-record-one组成, J& ?+ P* }7 k# a3 W' F
trade-record-one
( b$ q1 r( e' C2 W7 t" N: m;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 B2 F+ ? Y) D" r. {' {; N7 H7 x; ?& y, W, b5 @
;;[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 L5 B# q0 @2 s; b4 W! A; t
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]) j9 H# p; b1 P% u' G
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list9 V9 v% G0 N/ j
neighbor-total
# v! F5 ^6 D p# f u0 h;;记录该turtle的邻居节点的数目: @- U# q; Q6 i( m- x
trade-time
( C2 _" c4 K/ P. ~/ Z5 y* i;;当前发生交易的turtle的交易时间
* C' ~% N; f( E. O+ y. Pappraise-give7 t' d0 r( v' |& Q/ ?
;;当前发生交易时给出的评价
" y1 k% {5 k6 ?appraise-receive
: a+ G* Q. p2 j( b;;当前发生交易时收到的评价
' U( Q" @* e x& eappraise-time$ V" Q- T1 R" o9 l% E0 @
;;当前发生交易时的评价时间( j7 T* }1 ~6 K1 r. `8 X/ G
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" t/ m/ Y) v- s( A) m; Ktrade-times-total
2 ]: e' g% \8 D0 T5 q;;与当前turtle的交易总次数1 v3 X9 Q2 j5 O7 U/ Y
trade-money-total
, @6 }+ l5 b; p7 r" {. P, [;;与当前turtle的交易总金额" Q8 o1 H6 |+ i" Q9 Y
local-reputation
& b4 i" f* s1 ?global-reputation
) e) E. z0 S+ B/ f& l: b, |credibility
3 ]+ r& ]; i9 E6 d;;评价可信度,每次交易后都需要更新
3 i0 V& R6 w* [3 ?1 I) k4 `credibility-all
# l( k: L* u) q. k5 H1 F D;;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' t; j" Q$ m7 j. f, u" h4 c% F
; t% Q8 ~4 j3 A5 Z! H( O8 G9 ^2 q3 @;;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
: d/ {7 B8 O T: `8 v2 ^credibility-one7 O" Q! ~. E- ]4 `/ w$ s
;;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$ _ H8 x- H2 L: e" i3 W. i
global-proportion9 s# U7 H3 `; `! y
customer S5 y' k' w& [
customer-no' \ G+ L" p. E6 Z! l$ [$ q
trust-ok1 l( G; r6 `" e k3 Q7 n
trade-record-one-len;;trade-record-one的长度
0 d% k; i5 n& I6 g8 L" d5 F], e8 g0 i+ Q5 z3 Q( h' T
& ?5 y$ X' O( f8 l1 a
;;setup procedure1 J* h9 i: ~8 s3 ?% K0 g2 N0 R5 ~
* p+ [! l& r9 r1 `+ ^, w4 ~to setup) x6 @, C1 p. {) ?
9 `* }( F& t; O
ca8 J& l3 a# ]( b U' K# f4 M
+ ]0 f+ J1 `1 \! y
initialize-settings7 A. U4 _! y* c! J# U
. v# o; x6 ~ j7 T
crt people [setup-turtles]$ Y4 P" M4 M' W, ^* P; h% z1 S
' ~$ m* T! M- T$ U: D5 |reset-timer5 O+ o& r1 @$ J+ Y
1 |. N: S; c6 Q+ u. z. w8 q* I
poll-class
' B2 A8 Y- x3 c0 q4 Y1 V0 ?' z6 \5 d+ N. }. |- m$ W
setup-plots
+ x4 S* b8 {9 o0 Y! y
) D. L) N Y( S$ g; Q& Ado-plots
) T# b! T/ K! W- G+ e* [0 qend5 F* A: U) D+ }. r8 ^+ L
% s* L3 J7 }7 ?+ j$ V/ Tto initialize-settings- u+ J, c6 d6 a% ?; u8 A0 B
( V! c$ C' b! S C2 M9 k" ^set global-reputation-list []$ @3 U3 D( r- U# Y; g' q1 O5 v
5 |3 U o5 G. B i/ l8 Aset credibility-list n-values people [0.5]
K8 }+ J$ D' |5 d% b; f; V
0 |/ w) [( \3 [; Lset honest-service 0$ w* a# y$ t" p' l3 {$ | v
3 \# I' i: s- h+ w7 Y. _( y: N
set unhonest-service 0% @# L+ p8 A* r+ D- b9 L# A2 B
. _" r. V: K( M/ ^- a8 D! r/ w8 N
set oscillation 0- l7 A* H9 J) {& V: `. f$ D& o
# l" K( P3 r3 z# o4 H4 i2 Hset rand-dynamic 04 M& j+ w# }/ u4 z5 V7 K
end0 K0 a+ p( G/ B2 k5 R
: M! ?6 J9 J* nto setup-turtles
7 ^4 h; e6 f# K; k# l( i$ K6 ^set shape "person"0 J* f, t5 N/ J0 N n
setxy random-xcor random-ycor- w' J' t" C. R: |: z
set trade-record-one []" {$ D: z. G& C7 b% T& V2 ^3 Z
. H$ F& a+ }9 e3 J
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []& j( N3 J p$ G! A& [
set credibility-receive []. N! Q2 P; c+ {8 P7 a
set local-reputation 0.5; y7 q7 u8 K: x$ D5 u
set neighbor-total 0
, S V t! m5 Z0 ^& P0 ~& [set trade-times-total 0
0 N2 _/ Y9 H8 r# Z# k! a5 q7 Bset trade-money-total 0
# X/ Z# s& K# t+ [set customer nobody) y* n( C; b: i& p4 D
set credibility-all n-values people [creat-credibility]9 h0 V' s; p6 m
set credibility n-values people [-1]
& U0 t, y7 z3 h5 Zget-color1 I$ l+ X9 |, {* x f
5 t: N8 ^$ p7 v7 P5 C# ]; A' I$ cend
' Z1 A9 ?* J( z+ ^6 p
8 @. d8 J& D: p7 G/ H- P3 }to-report creat-credibility! ]8 {* N* d' G f/ a
report n-values people [0.5]8 l: ]( K# i$ Z9 g n5 Y- G' T
end
4 J) X+ h: d* K1 K* y1 M1 B5 f" I# `7 W% I* t5 x& v
to setup-plots) X! F% I3 t' c6 c( J7 h
& }! N o' B( r& nset xmax 30! p2 c: T; `# C8 q4 P
- c% S# W, L& o) B+ b+ h+ K) Q% z
set ymax 1.0: X, N; d' X8 M- L
2 o7 @2 [: ] \: k+ a
clear-all-plots
4 O: P( x6 O* l- y
- h0 j' I* z9 p, \ r6 O- `8 msetup-plot1
8 \, k) V& c7 g0 ]( U
% R/ ?$ P) F! p' h9 ~setup-plot2$ C, x: Y/ x: G
* p$ P1 Z! m( O& l, ]- f, D ^1 I, Fsetup-plot36 b2 _8 A5 u" [- B
end" B" f! d. x3 A; F7 a6 l' M% ~) ^
}0 r+ X: w2 f9 `
;;run time procedures3 F: w5 K5 ? ?1 N" m
+ Z: e+ G0 Q. oto go
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% c% T5 T0 w( S$ Q& M6 M- _ask turtles [do-business]
' C+ t- F2 [, ]4 |. |9 {6 x$ @end' ^; ?2 ~' p L. i5 a+ q9 X
# l8 H$ C2 v: b
to do-business
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" c7 Q6 J2 U9 ]) { r0 yrt random 3607 |+ u/ ], G, O$ A
5 j3 R' p0 z7 ?6 l9 ^/ e( X
fd 1# l8 p1 s6 {. V, ~
- T1 R2 T B ^7 zifelse(other turtles-here != nobody)[9 d4 E4 h, c; x6 U- \
, b% V- A P5 m% @4 I, N( O7 Uset customer one-of other turtles-here
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9 m5 [1 |/ }, c# Q1 h; }8 Y. T;; set [customer] of customer myself
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3 ]( e# u9 j; B4 \- f1 bset [trade-record-one] of self item (([who] of customer) - 1)" y" p( |! Q7 g
[trade-record-all]of self( z3 z& R$ o: ?9 S1 j6 }0 i* i7 i
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( `( q u3 h7 F' F( A; ~: a0 b
, r; {! [4 e7 Mset [trade-record-one] of customer item (([who] of self) - 1)
" ^* Q, Z1 Z. {' w[trade-record-all]of customer8 i# |3 S4 e, m" J9 e( w% R+ A
% @# \) D- C7 v5 b0 i5 fset [trade-record-one-len] of self length [trade-record-one] of self
7 o0 _& G) c) u P
! I2 e( Q$ E/ t9 M" `( rset trade-record-current( list (timer) (random money-upper-limit))) j' ?2 `7 s1 m) \8 F. K, `
* Z* @0 i/ @, rask self [do-trust]
8 g9 K0 z5 v) S4 a% i+ P5 e;;先求i对j的信任度
' ~; C* g) ?* _0 a0 F% O# H; ?( M' V4 _% e, q3 [ a7 V
if ([trust-ok] of self)
d! W! O' ]* d9 P7 |. E;;根据i对j的信任度来决定是否与j进行交易[
4 Y% V4 Q( h7 y+ _8 h; |1 L, _( G& vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
2 l) ^; I6 i# h. i, z3 B! `
) t G+ D8 l" B: i3 l7 Y[
! ]4 S8 X1 W7 c7 Y
8 g9 n* y& i* c8 p( wdo-trade( e/ h& h+ Q& Q, C6 ~
( f7 {( ~3 a: m4 a K" Tupdate-credibility-ijl
7 H h; t4 W% K0 k3 l: C. h
' {+ ~4 H9 Q1 W7 kupdate-credibility-list
g# j& K( i5 v7 C! M( F' e
! M* v3 x/ Y7 u X1 S9 V B2 n8 u6 N2 q6 ]. X3 I" ]
update-global-reputation-list
( q+ S9 T; [' ?# r" g2 ?
) o8 P7 G b% c" Dpoll-class) Q/ F9 ^, M0 W' B O9 U" d
. A3 V3 k( D" a' p
get-color
4 j- ~- \% f3 u7 _. F
( f/ ?2 S0 x9 Y]]1 q; T- d0 R' Q/ }$ T5 P+ j3 F k
7 n& d2 Z! Z5 S; R$ K6 b
;;如果所得的信任度满足条件,则进行交易
4 R X" W& _. x1 d c
9 s( | J* n* n* y[
- s8 U- ^5 R7 K) Z/ ~
& c: s0 f3 ]5 rrt random 360" Z l, S4 |- Z1 c" z! S
" f- y z! M( N& W3 }' jfd 1( o+ M& }( T6 O0 h. W
' ^- y/ Z/ l- V; S$ M3 Y5 i
]( B; B3 l0 i2 t( g; a
2 s6 D9 N4 a% ]% q% V R
end
* z: \0 K5 u9 F0 E- u# `
7 w% l" r% U+ R8 v. Xto do-trust
6 V# u$ ?! L4 G1 `/ Q D( T7 u8 Tset trust-ok False
' Q) I5 F0 A5 w. i+ k+ J( ^) }) b7 O1 U
" u4 D9 a7 @7 D6 S( plet max-trade-times 0, Q6 K: Q$ c/ E! X/ {4 [
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 g/ m M( B: M
let max-trade-money 0
: K# `( v" ?7 a$ F1 v2 A* t+ yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 `1 [$ L! p/ alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) W3 x2 M3 T' }' D1 J. A# R2 j
6 Y+ Q/ }2 n2 A/ ^( u: B, e0 P
0 d5 F5 ?. ~- g# m$ o3 p$ ?get-global-proportion% v+ i4 d. P# r- E4 K. q& K" q
let trust-value( K0 t$ _; v! l( \
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)5 b$ f* Z0 ^) `7 [- S6 i& C2 e: E" y
if(trust-value > trade-trust-value)) S& m) c& }$ i. x4 D) f
[set trust-ok true]
1 ]- r% a0 c4 U4 O/ C: ^- Q5 Eend
1 f7 r) x1 ^: l( h' \0 o
7 h! G, V# Z W) }to get-global-proportion' l* E5 ?* y, M# W8 g2 T
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 [+ f: R* s" U% \8 _
[set global-proportion 0]
& d# p! |" M8 |3 d- w R[let i 03 u% h) k+ S4 b$ m9 `3 t
let sum-money 0
: M/ F' m" n) W' [0 Awhile[ i < people]# V( c; L8 ~) |. ?. R& f. D5 v
[, X# {# ^8 G! b) S$ U
if( length (item i8 j: E- Y, e! c0 g- G( w& T+ d
[trade-record-all] of customer) > 3 )
& {6 N. E' ]! K5 u. T, ?[! E6 X; Z$ q9 Z- _! U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( d. E! C$ s# \. i! D; t]
: V6 C, r, h% Y6 b# q]
1 z1 ], R' c) n, x# L6 E" f6 [let j 0
3 M+ J @ G) c$ w8 Z1 ~let note 0
( j5 O9 D$ h- m: E5 F+ O* twhile[ j < people]3 N( ~+ S a% w Q, K
[& t% \* U$ ~7 B+ W1 @$ l
if( length (item i1 _8 V1 ?/ e2 e& m2 m" W
[trade-record-all] of customer) > 3 )( O- @' N+ m0 S. c
[
/ _4 `+ T/ b4 B. [9 oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! b+ z# r/ Y, }* H$ J5 N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 o+ e6 J# ~$ y* ~* X7 w4 B[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* f8 [. W* D' R) u' i5 o$ c]# S1 H$ }& g1 e( ~8 V
]) r$ {% L5 Q& B7 E& t
set global-proportion note
/ b% q: t0 |5 R |( `7 K7 Z" R! m+ q]
/ h7 S' q8 C1 W1 Kend
5 y1 {/ j. @6 ^4 N/ c# ^* O2 I! O% W9 a) s) b$ d- }
to do-trade
8 R" Q% W: ~) ]! ]& `# B' B2 m# s4 ];;这个过程实际上是给双方作出评价的过程
6 B6 v! q) [# `- x* D# p% wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 |' x. q1 S9 \. Z& o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# }3 Z+ ]* }8 O
set trade-record-current lput(timer) trade-record-current' I3 C/ i' z% N8 c
;;评价时间- \8 Z" K% O) v% b
ask myself [. |0 w# ^" ^) M- s7 B
update-local-reputation# _) _: t7 E8 {: D1 Y! F( I
set trade-record-current lput([local-reputation] of myself) trade-record-current
! l2 u& O! L: H. ^2 ^2 }. o% T]& @7 f$ s9 W3 ^: T5 w: b
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 M* }2 P3 k5 T' b;;将此次交易的记录加入到trade-record-one中
, E# A9 N1 s/ D: N% Kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ B3 m6 G- p" _- Blet note (item 2 trade-record-current ); n1 g8 S0 F; ?8 H {. Y4 A
set trade-record-current3 M1 a! D* z1 I) }3 s
(replace-item 2 trade-record-current (item 3 trade-record-current))
2 j+ J2 D: l% f& |set trade-record-current, s5 N2 V2 X' i3 b+ N* P, c
(replace-item 3 trade-record-current note)2 n5 Y n/ ?. t. |; T2 A6 {+ d
" E! V- [8 T' t9 V# R$ Q4 ?6 x7 o7 k
1 o, v* _: s% Q
ask customer [: ^- k+ t5 x' j, |$ Y/ B9 N8 q. |
update-local-reputation
1 s5 O0 ^6 A- H- K) Oset trade-record-current; R. u$ k; n9 O4 }1 |+ J) V) w2 u7 H
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # K( H0 n: a% j8 e0 z. S: u# o1 [
]
6 J, P+ ~6 i8 k9 C1 n) y5 W0 P
J+ N1 u2 P; ]( q4 o$ c0 Y2 y+ T* c0 t5 M" `& y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer i" z. }2 f b; I, K
0 B& k/ [+ N6 `8 f3 [) c3 nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 r# P4 ^7 A5 j4 D, q
;;将此次交易的记录加入到customer的trade-record-all中8 K4 ~2 G% E5 O s: u
end8 T- w w1 `, [0 M6 B k, H, c* o0 Q
8 v/ m! b& m% n+ _6 ?
to update-local-reputation* k' K! R& X+ ]6 r6 T& ~9 _8 D! V
set [trade-record-one-len] of myself length [trade-record-one] of myself
9 N( E, z& m7 L( f: X% J0 N8 s
j( P) q2 [9 d+ F; R: e1 d! |) F3 h X7 C/ J4 A& p
;;if [trade-record-one-len] of myself > 3 ' h' b: J+ `# E2 p% F3 g
update-neighbor-total1 S, t# l. `. ^# i8 \) `4 ?
;;更新邻居节点的数目,在此进行) V' D9 F6 B* m' n @: d
let i 3
$ @- G* v' P, Y( F* rlet sum-time 0
+ q, y+ h }" V9 {& v- iwhile[i < [trade-record-one-len] of myself]7 b2 t* v i& W
[) ~, Z/ |; z; H: p/ [6 j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 W9 c( [/ x9 D' c1 [
set i
- W9 [& {9 F( b( i + 1)
9 [3 {: R" m! `1 E. G7 D]2 k6 p5 Y$ S/ S2 l9 r: g! K& u1 K7 C
let j 3
0 P, C: n) o: N9 X- ^let sum-money 0
) D, f1 `+ b/ b2 qwhile[j < [trade-record-one-len] of myself]
( C$ _( p c' P, O1 k o* Y[& k3 y/ e8 t" Q$ T9 S% @
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)1 @; Q# I. J& T
set j F0 |: C( r" Q; g
( j + 1)
! ?, d! N3 c2 f7 V$ q5 K( d* G]8 K" F- j. b- g
let k 3/ V' y: ]# G6 U7 ?! z" H ?1 p
let power 0- C9 P1 ]4 h& W, H l* C' z$ o
let local 0
5 ^! p1 q# _$ L. L% f w; c3 Nwhile [k <[trade-record-one-len] of myself] W* v9 t; g/ u. ?6 a; x2 l. {% M5 C9 @
[
5 D: z7 `9 k5 o) Sset 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) $ B2 v W0 M4 E4 W0 Z* M) l! t$ o
set k (k + 1)
4 i- J, A+ X7 T( a* U \, R+ M]
$ \6 v/ h8 x- pset [local-reputation] of myself (local)
0 W" f! h3 ~1 }1 i% v& e& Q6 d1 aend7 `# ^4 h( n# ]- g C. s! |& p
% z% D: E8 T- x, w5 ^
to update-neighbor-total- }: {* M- j& T
8 `1 v. }$ D q8 w8 g; f
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
9 `0 s+ k( a$ u9 J& R2 y I/ W( C n
- U9 m% l1 n9 K) \" @8 J9 a4 Jend
7 m1 h4 w D0 z' P" J1 u- L0 A( i- ~" \9 R. |2 D( {% ~
to update-credibility-ijl
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;;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。
$ U; p. @( B/ r$ jlet l 0' [4 E. d* x) M
while[ l < people ]
; h8 c+ `9 O' `- ]8 z- c;;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
c, X9 M. D9 [ R/ ? l# g# L/ \[
" h7 S! m5 ~1 |/ ~let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 t' v6 k4 Q9 f2 [' y6 Z# ?$ C5 j ~1 e
if (trade-record-one-j-l-len > 3)
% Y: p% a! h+ V, Y( N! h[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
7 Y1 c. u5 G, l& x9 Ulet i 3! U* h0 ?$ T* u- A# z) ~ F' t) P
let sum-time 0
- O1 f/ C5 \$ B4 w4 p! l dwhile[i < trade-record-one-len]! V' n4 ?1 \" U9 j/ m0 @
[* o* a% P+ O z6 | g5 |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* N! t, r" P1 ?. q. E/ u1 f Q9 j! `
set i. e7 z7 e/ G: j
( i + 1)
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2 w4 v+ p) L7 Elet credibility-i-j-l 0
/ q+ R8 f9 r( d6 w1 J& Q8 [3 R) c) z;;i评价(j对jl的评价)
! ?" ?2 ]9 b5 y4 e0 _% Ulet j 3
: H# e% b$ b' M! Z* xlet k 47 t) K. U# }) P9 W8 h5 N
while[j < trade-record-one-len]; }. Y0 Y5 F9 ]* C
[+ i- ^% K1 d. n( B& k
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
# \$ i$ W$ w: j/ N7 @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)
! V8 g1 v. X9 E3 N, nset j
: I: e9 C2 G- t4 l( @: a, ` a( j + 1)
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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 ))
! v1 X$ P4 p/ Z' H5 Y$ a" N2 O& n4 n" o, n ]) A- k2 { ~6 y' Y
- e; I: @/ ^( _; M" \3 x& c+ i/ M) }let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 t) ~3 V$ K0 p( U* c9 v2 d;;及时更新i对l的评价质量的评价5 n# y- |; i& a3 T& `' E
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# S, u# G/ \9 s+ e2 P Wset l (l + 1)) _1 D! c4 S2 ]+ M
]3 q" K& O" x6 h# C1 E9 b! ^/ r/ p! `
end5 T4 L4 n! p7 y8 t
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to update-credibility-list& `1 L. Z' r2 h" x0 N, t1 y
let i 0
& W- `' n% J4 {1 h8 U2 K Nwhile[i < people]" M2 ~, E1 J1 c& f5 h9 ^
[
# Q: Z1 h+ D! K5 c. Dlet j 0- L7 o4 o1 C6 \5 \1 O3 X4 ^
let note 0
5 W, l4 A7 o# T0 V* g. `let k 0% x8 P/ h6 b8 P. V
;;计作出过评价的邻居节点的数目8 p0 Z1 }! E' _# h
while[j < people]
+ s/ c4 l6 C8 F, v3 t: u[
( U4 z1 U$ N( F Lif (item j( [credibility] of turtle (i + 1)) != -1)
! D% R u: k% X;;判断是否给本turtle的评价质量做出过评价的节点* X* p2 V( q# P$ N
[set note (note + item j ([credibility]of turtle (i + 1)))% ^+ H8 @6 n' f; f* o7 u/ M# M! n) R
;;*(exp (-(people - 2)))/(people - 2))]
0 g2 r& w' L; r7 m4 r" T- b- Dset k (k + 1)+ Q. e, G; x: y8 }" t
]
3 u. u8 G8 D' N& \set j (j + 1)& c: t* g. Z# H9 s4 Q
]- O4 u; y2 _$ o/ C {7 f( z1 o# C0 z
set note (note *(exp (- (1 / k)))/ k)
2 p" `0 b! i$ c& hset credibility-list (replace-item i credibility-list note)- e* \% n, u9 _( \2 T
set i (i + 1)3 j* Y Z0 U3 |! R0 p
]
# {' J0 K) ^2 K: c3 C9 C. _. Eend
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to update-global-reputation-list% [+ x1 d) `' ~
let j 0" ^6 _ y' ?" S W
while[j < people]
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let new 0' b q8 g5 ]9 r5 v9 O" r4 M6 O
;;暂存新的一个全局声誉* G C& L. S. q+ \$ p+ A9 p+ E6 S
let i 08 q7 [2 a1 W5 f0 s
let sum-money 0
3 F0 f+ {# M3 I/ Z. p' @7 d4 E& ?let credibility-money 0
: j$ c1 W: w9 g* jwhile [i < people]1 Z5 f+ R: q5 p) C! `" S- G/ c
[
! z8 y6 M6 X* T# V' s/ I, xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) E/ S. _; D! p% i9 o' }9 jset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* F7 T& ~ |2 D3 n7 D G$ o1 uset i (i + 1)
& U7 \/ I! q# |% w* a7 B]
7 y; D& y( m- t* Llet k 04 E" W& W/ ~, w( s( J
let new1 0
$ e, I3 Z! `( ?while [k < people], @# Z9 Y* J0 z& W
[
% |! a4 f* I! f9 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 `' ~. r0 D+ U6 l$ z# Uset k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " h: }$ M% G/ O5 q1 m
set global-reputation-list (replace-item j global-reputation-list new)* O6 Y) o, Z2 I' D9 }- p
set j (j + 1)5 @2 N1 {/ H f2 V1 O2 n
]
2 x- {$ ~8 R# b4 Pend$ `5 R+ e/ h$ x8 U: V3 F& {
4 Z2 x6 I: G3 ~% W) h1 z" G( q5 o: `1 |" s9 J
+ t8 S; v* M. A5 V4 Oto get-color
+ R1 y8 d4 f3 p+ u% L1 u
$ n9 C9 t7 M& t& G; q! O6 ]8 Nset color blue3 R) c( v0 h# z* H. a
end
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to poll-class- h) l/ ]* `1 {. Q! f
end
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' F2 U$ _8 ~4 y! z0 O4 J) R& l% Pto setup-plot1" w' b, X# ]0 w& ~6 U$ N
. Q" c- n3 j+ d, Iset-current-plot "Trends-of-Local-reputation"; R" \# U" B4 c4 N) M
4 c* h W$ O; O4 `- L; c9 f6 f; qset-plot-x-range 0 xmax
0 o- A! f- T. i$ S, L R' U/ x) Z+ s' e" p
set-plot-y-range 0.0 ymax: F! Z8 A5 F: ~3 K) d: Z
end# K7 U1 d+ {/ c" a
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to setup-plot2
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set-current-plot "Trends-of-global-reputation") L6 T7 P- D5 d7 U6 d3 ^$ U
# C5 t) J, y$ J8 w; L% y, Lset-plot-x-range 0 xmax/ o9 r" L: O8 Z
% M3 V" ]4 ~+ C& a& q+ ]8 cset-plot-y-range 0.0 ymax- U$ L3 Q( @# z2 n+ _- I
end, Z* s0 p) H* p# z- d. Y: r
0 ~3 e0 Q, Z3 q; @- i/ `. mto setup-plot3
4 Z3 {; D: d* I4 Z
* S2 l4 |' \! s! wset-current-plot "Trends-of-credibility"
* i2 X u$ [- D2 f
1 w' g- b. d! s Jset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
6 F( P1 x8 r6 Aend# j: B& N6 S- i k3 L- O; i7 j+ `
) Z4 }. U; T; k" X4 m* x5 X
to do-plots$ e, f9 y0 p2 Y% I! F& u
set-current-plot "Trends-of-Local-reputation". X. c* {8 D1 u, B# R; P' \
set-current-plot-pen "Honest service"
2 @( s% i; h* Xend
8 R" k! L& _. I5 n8 u2 ^% d/ U) @
5 F! a1 m/ B9 v @[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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