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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
- W( O* u- M4 L) E- _1 V3 V" }+ B3 Wglobals[
x8 w f( ]9 pxmax. M; K* a7 Q1 j6 f/ D
ymax: P! _ c7 S# m7 I
global-reputation-list
! J1 r8 K' K' U: U& z. l
, E$ I+ k/ T" C+ g& }' x+ K( {;;每一个turtle的全局声誉都存在此LIST中
! Y1 o( Z5 Q$ i: k: ~- b Vcredibility-list
$ s/ ]+ n( W$ o! b;;每一个turtle的评价可信度
) Q/ _1 `' ?( J Y* B4 ?honest-service
, P$ \8 d2 M! v8 h3 Vunhonest-service9 |+ h* A# h0 I4 N: a5 }
oscillation
/ j2 ]. ~! j4 g( Frand-dynamic
G/ k4 O1 z6 \) K' ]" H1 Q]
. R& w! O2 b; G) n& k7 y
6 I, I1 |# t# @2 Cturtles-own[
+ ]6 r, B# W! w& B3 K2 Ptrade-record-all0 b- K* ?" N V
;;a list of lists,由trade-record-one组成
- m0 ^' ?- U) z7 u( Ptrade-record-one
7 y' o1 ~9 J% \. }- W6 N;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; k' C4 v/ b- D
, u# J" B/ o: N* N: E# q6 l5 _9 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]]- k, ^1 G( h( k
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]
4 t% M- |5 S: m% I% P$ d/ ^3 q1 Dcredibility-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
3 e- ?+ q8 l4 q5 v, ~+ L9 t* yneighbor-total8 j$ o* A7 E2 N' K' N" k" Q
;;记录该turtle的邻居节点的数目
?1 w% v* l) l* ]' }7 Y( ~trade-time6 [% w& v9 D, ? q' @7 h
;;当前发生交易的turtle的交易时间
8 H. w, \; w3 D: T$ J# Iappraise-give( w$ y/ b. ?, {* H
;;当前发生交易时给出的评价
% l- s) t' i% q! D! jappraise-receive1 r3 i% g$ X; u/ y6 G
;;当前发生交易时收到的评价
' v8 d) f) z, U# P3 Z" l. Aappraise-time
5 g: h$ \) n! e/ h$ r;;当前发生交易时的评价时间/ x- G6 h* ^ D# I' g; z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 n' k2 U! ]# g y( F: xtrade-times-total
" ?2 \$ ~ o. Y3 C( e8 [8 z;;与当前turtle的交易总次数
0 V- i1 U1 x: }trade-money-total
1 A7 ^0 L( Y9 l$ j6 g5 ]. v4 p;;与当前turtle的交易总金额% J8 r# d# @$ n: F
local-reputation0 _: G z# {! y/ u! o9 K
global-reputation' J$ \$ \! c2 p: J: M* ?
credibility3 z" S9 `8 e7 ]1 z' B# T
;;评价可信度,每次交易后都需要更新
7 ~9 i6 n) C& J# ~9 X8 ` q5 gcredibility-all
- V+ b0 X. I" L3 B$ W;;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
' A. b$ ^1 h! N% O; b7 G5 w1 `
! `! }7 u9 g# z* x+ x- W;;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
9 [& @- h$ f. J0 j2 ccredibility-one% G0 [, V H/ ]. \
;;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
; M% k4 ]8 M+ v3 F dglobal-proportion
0 K: H- S }. X! ncustomer
5 H+ o2 _, w& w6 h6 v; ~customer-no
, v* R1 a9 z4 k$ U) b2 O5 Ctrust-ok
0 ?8 K. K1 Q4 ^8 ?; [! _$ ~7 i. i/ O) ztrade-record-one-len;;trade-record-one的长度
( m, E- v1 V. U: w2 P]
% U9 S1 e; b) N5 h+ I9 _
/ _4 K- {# z1 R: l: x' V. };;setup procedure& u" d2 \! m9 `8 q/ p" U% n
. }; i, ]2 e5 x3 y$ \) xto setup
( A4 C: E/ K: E8 p# h& f x: A8 f5 k' ^' O' f
ca
6 U$ {* r6 M. ~: \! M
1 F% C8 a6 x5 j$ Cinitialize-settings
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crt people [setup-turtles]
. u+ V) y' Q$ U% A* g2 K8 _' Y% `& S7 o9 v/ d: T7 U3 t
reset-timer
, ?* u( r9 |' ^$ L* }" P0 e0 s2 q: O) Q
poll-class
7 }8 f; B, |* |5 d: F) r$ ^" a/ ?+ S- t+ k
setup-plots+ `- f/ ^, ?" s- |3 k0 \
" C6 u; D1 I7 l
do-plots
$ v- |* i- H) s, S4 Cend, }+ S6 E5 t7 Z( l: | D0 Y/ {
# U( Z4 E0 O% {( L% ^4 @to initialize-settings# g. l# M, G8 \8 q- C# u% D6 [
, d' ~! c G& i0 v0 S9 jset global-reputation-list []
9 F( Q& y5 C* K3 k. t9 x* b4 E; ?
8 ~* h7 W# k4 z% C1 C* Mset credibility-list n-values people [0.5]/ _4 V) l m( |
* X$ g3 k6 ~# h" t/ y
set honest-service 0
/ V7 O9 F7 Y7 w3 p9 |
3 \. F4 z+ s1 B+ Nset unhonest-service 02 V- \/ z K* C, K( u0 V
: Z, [8 Y0 W7 b+ r7 k) D. lset oscillation 0: b% w7 w6 @# g# C; D; w, h4 C
2 i) l9 B/ V0 q B8 ?& i. u cset rand-dynamic 0
: f) }# K* r0 send. e% Y% U3 t6 l, D& J) e2 I
) C# r9 z7 |/ ?* M' r
to setup-turtles
* O5 h: S$ M3 M0 ?, uset shape "person"
3 M* d7 A" ~1 }setxy random-xcor random-ycor
. e4 q+ Z# K1 [( @: r9 Rset trade-record-one []
. D' K1 |: _. c' K C! N; {3 S4 K1 e+ O; q" [6 s! K
set trade-record-all n-values people [(list (? + 1) 0 0)]
" A, n% H: ]# d, j6 J0 U. Z- _! b
3 E% [3 @; y7 P( a, p1 G- Zset trade-record-current []
7 C# J, e7 L% x, Zset credibility-receive []. @9 H; r* S7 y8 f' |; Y
set local-reputation 0.5. L9 f; [) }7 ^* d8 P5 t
set neighbor-total 0
( d6 j9 s. t) U5 _! T$ V' o* bset trade-times-total 0
/ V2 {! q) t% Z( ^7 K) t, {9 y. qset trade-money-total 0. b3 V+ W& Z8 m1 |2 q) [5 A
set customer nobody
/ i) x0 F! m5 ^, `set credibility-all n-values people [creat-credibility]
4 {- j" b/ B3 W* v) Hset credibility n-values people [-1]
3 k/ l w4 C) M+ `9 d) Nget-color
p+ R9 J) x* h0 `. P
5 }# o! w2 v, J6 Rend8 E, t6 c) _, i
# _: J1 R, |, y# w; k
to-report creat-credibility8 U' s) ~+ I I1 c) w' B* _
report n-values people [0.5]
4 `% L' H0 L& ^2 [* bend5 E, V8 K4 T* C
. |% C3 U2 T" t; r) G
to setup-plots8 m( K8 K- T" Q; l/ }/ f% X3 y
2 y; X# e1 @- b7 a4 Z; U" e
set xmax 30
+ O( T# y) O% m; q5 V
{% Q6 X3 `* X4 j/ Y" ~set ymax 1.0# U. U# W1 Q' R! F0 g r c
. c2 a& s8 u' Q" }
clear-all-plots# W0 B) i( b/ X& k6 ~6 m# q% P0 R2 M
$ X+ L# Z, C3 ~- U; n6 V2 ]setup-plot1! ^ r5 j. S7 j; e; ]2 g" c2 b5 ~
* [- k0 ?. N) x7 Psetup-plot2( ~" N; o# N0 t1 N1 |* [$ k
; W& C3 q- Z- ?3 @/ ksetup-plot3
& Q1 m& @; {$ {, D' _ jend [$ ~5 \& R: g8 L) N
+ b5 G% \# v" Y3 W: C: D;;run time procedures; }# @9 g9 p6 ?& s" U; u5 S
( T% ?+ ?6 f3 `to go: f: G! z2 v3 `/ C# J" ^
9 \; b3 Z3 p t: | u6 R
ask turtles [do-business]& E! p8 L* }' Z% @7 b! o
end4 |" c! c/ x, }. U( x1 W
9 f# {2 F! q: eto do-business : y+ F) O! D0 _) Z& J
9 S3 a2 L0 v7 q" Y" e& P5 g8 ]! Q4 h7 c% i' D
rt random 360
" K' [1 |5 {& b6 q# z1 q s
+ v, H9 }$ E/ hfd 1
" K p. q% Y% u7 @, A: {
" N |1 }! F' [; B& Wifelse(other turtles-here != nobody)[
2 e* x: G T) w3 s% m: L, w
4 i' b3 r" Y; vset customer one-of other turtles-here
8 d% \% }7 b) r% [" N! a1 f; D" v0 ^: s/ w5 Q5 T
;; set [customer] of customer myself' C2 R$ _3 w w% K; J, V
! y$ J2 f* z. X" r7 {/ q! f) z
set [trade-record-one] of self item (([who] of customer) - 1)& [* s% g- p( K1 z
[trade-record-all]of self
8 K+ j, H I: Y3 b; k1 v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) m! o u5 F j# \% B$ v4 g8 d# a/ n6 E) F: j3 S4 K" R1 d
set [trade-record-one] of customer item (([who] of self) - 1)
+ ~2 e5 m: p9 d) t[trade-record-all]of customer! ^6 F7 i) d5 B+ T& d
' b8 N, X! O5 v4 ~7 Kset [trade-record-one-len] of self length [trade-record-one] of self& Q* t. k) W8 F" [* r& Y- v0 e
8 ?" |. W7 f0 X; F H
set trade-record-current( list (timer) (random money-upper-limit))# r! ]6 x K! ]+ Q
4 w# g! T. i: L6 qask self [do-trust]
5 c, R6 V3 Q* B* ?* X) l+ X, M: v4 P;;先求i对j的信任度* s+ y2 m" b- j- b
4 U( X8 M2 u( C$ _7 G( Aif ([trust-ok] of self)3 g' I0 ~( `) J9 T& j- A
;;根据i对j的信任度来决定是否与j进行交易[
- c/ ~- H9 [- s% }" G: P" |, n3 vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
) D% [0 y" g3 {) C# O! ~. G* w( L, n* u/ c' e0 z% p' t
[
: Q y/ T5 B/ C" b) h( N' R9 u# y* l" c
do-trade
! }+ ~& T4 F" S, T4 r& a* f# J& j. |; [$ b" ~, }' g3 J
update-credibility-ijl$ C& G" g6 }* B; n+ d, T; p: F
; E5 @& Q5 M& [$ I: @6 [# ~update-credibility-list
- E) E7 m' X4 \8 t. W! E
4 k. Z& ] d5 u5 Y, Y* \ @
3 G. U2 n1 a8 S/ x" y8 R6 Iupdate-global-reputation-list
2 D) [3 |, l2 L- N4 k8 @, t/ `' ]8 D0 x' E2 `7 |
poll-class
6 |; h, |. b( w5 S' f$ h8 y
5 ]1 R" C0 L$ b) _2 c0 ~4 Qget-color
7 N0 n+ q/ v# }$ r6 Y5 U$ }5 g1 w8 \" O& H/ V1 `1 f
]]
( u: C+ Z0 |: R0 n! k
4 x+ t& T, D# ]6 P$ m- {* k;;如果所得的信任度满足条件,则进行交易* c0 R; v- k, O [; ]" ?& s7 Q
T+ w9 x! \! R' t6 f. `- A
[
- U) L8 x! |" C" u" z P
- k! C/ ]. C. ?rt random 360
) a3 ?* ~- y) d4 y2 Z' J4 `, o0 j. F! G* D0 d _
fd 1" A- G8 O0 `! t
5 T, p* A4 I/ W5 p: Q5 ?/ g
]8 k0 W4 d( _6 S
o0 \5 m: Q. h W( oend
: J) ?9 m8 A; C; C/ U
7 U% D) g- I3 fto do-trust
4 a4 u' k6 H5 v* ]6 U* _set trust-ok False
/ U9 a7 N w; r; V3 t: |# o! G+ F3 |! _. d: ^
6 t3 b3 T, Y3 {( b1 M- ]let max-trade-times 0% h' K$ |5 J# z/ I+ O3 D+ A0 {
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 S0 }& G9 ]& }, z% K- G
let max-trade-money 0: r" Y& G2 B$ U, C3 }$ C
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; u G& h1 B9 j" P6 n* X
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) M3 x9 s4 Q9 z; u- S& @9 x1 p* n2 q, h" j- s
( E! R7 @" c0 X B) Lget-global-proportion8 i) ^1 ^2 t% J
let trust-value7 N4 o, D' h* D1 B
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)7 w) c6 [2 j0 m7 h) k) ?/ M- P
if(trust-value > trade-trust-value)
9 o, x, ~6 t8 G& m% E[set trust-ok true]
9 d# y3 N+ ?0 cend* V5 |. I8 d/ P& i
! ]2 G/ |( f2 R7 kto get-global-proportion
% z( k$ T4 E, l# A* gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 ]: d. `1 b. y) Z- b3 T
[set global-proportion 0]
/ r f) O% a( ][let i 0
: k6 \0 ~) ] V! Glet sum-money 0% D3 Y5 Q( V; _, i( m
while[ i < people]9 X0 f# J# g% u- p: w
[; c. ]% ]- ^: h$ ?6 V0 }4 r8 Q
if( length (item i$ O! o% H. p9 u, A7 L
[trade-record-all] of customer) > 3 )& P. t; F5 `! P6 ~. b$ y8 ~$ J$ x
[) C" l. F8 _/ r
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( o4 v* K9 o Q]/ z1 i4 h. ~" J
]% o. T3 c! Z8 G
let j 0% S9 i) D' q. p- s8 U1 s O
let note 03 _9 ^) W7 m. H g- K, r+ @ _
while[ j < people]/ X9 g0 Z3 i9 y
[. A: {9 k; Y% T
if( length (item i
, T$ }8 w( Z; t- u) M/ k[trade-record-all] of customer) > 3 )2 O! o+ t5 T* @
[3 u; w( c* D+ j) o* T: M, b3 I
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 D* c. Q( A3 B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] c4 ]) n/ s( Y& V) `% C( a1 m5 S
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! H0 P4 I( N: x+ {' U) d
]
/ O8 `6 m) I: R, d" q3 p]5 L" e) X3 o8 x, |3 @' }) m
set global-proportion note @+ s, t' Z# X" ]2 O
]
( Z$ |2 t o. \: send* Y5 S3 K0 }$ v& ~$ t) f; F7 u
* I5 G) L$ m" V4 Hto do-trade, ~/ H; L) S6 l9 U/ I* j; \
;;这个过程实际上是给双方作出评价的过程
9 S, z3 W, E8 S, C) Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 [2 _1 S7 C2 S* L& @5 E7 c
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# L- E I0 U8 C+ v) T5 }( M
set trade-record-current lput(timer) trade-record-current
2 y* N4 o2 f- { i1 _0 Y;;评价时间- a2 Z# _8 n6 c, A9 _& H
ask myself [
f& M8 d: q$ z, L1 ?update-local-reputation
% e& ]1 u# Y: m; M! kset trade-record-current lput([local-reputation] of myself) trade-record-current
5 S l% [4 Z1 s/ C" z]8 v; }0 \* w1 i; ]3 q1 F
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 k6 n$ r4 u" M2 |# W
;;将此次交易的记录加入到trade-record-one中
8 d/ ?) q2 E; {5 O0 C4 E; Z/ iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! O) @0 U% T7 Q Z) }& k
let note (item 2 trade-record-current )+ z7 Y/ S6 [! t
set trade-record-current
1 k& } w. c+ X6 F(replace-item 2 trade-record-current (item 3 trade-record-current))
! Q O; J& [/ @: Pset trade-record-current8 H5 h% ^( T* g
(replace-item 3 trade-record-current note)+ j8 e1 Z R: A+ H8 T6 P# v: F
: a$ l, @5 c% T; z& k3 z. T3 U& V
+ @: K5 [8 z2 C+ v: f
ask customer [( I# ]7 B5 W+ N, e: p0 [' `
update-local-reputation' d* y' D2 A1 i9 _
set trade-record-current
6 L# t9 Q' {( z" S(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 |0 ~1 K* A: {- ~
]: d) q) o: y1 k) s9 U9 D
& E& }# ^' ]' t* z b
/ ~" G% q; M( D; V7 v$ wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 u0 T; G* m& y+ N
* W; a. c& Z' ?# |, i' L( gset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# O1 @: ]# `0 b;;将此次交易的记录加入到customer的trade-record-all中1 k3 t% j0 ^ Z$ }7 P& V4 C: P3 [
end
3 F. i3 ^0 i; _7 Y2 W" f
" P i, y, F f Kto update-local-reputation
S; ]: H+ F* Hset [trade-record-one-len] of myself length [trade-record-one] of myself5 m: E8 m1 j d8 r/ K) H
% `% m% d; L" |' \: L, f5 M. |5 Q1 r `2 F( o- y+ q7 ~
;;if [trade-record-one-len] of myself > 3 / B% n8 n7 e. ]9 | P) K
update-neighbor-total, k( |6 {( D: `
;;更新邻居节点的数目,在此进行
; w, [9 h, h% Qlet i 3, ~ B3 g5 @9 l6 Q
let sum-time 0
% B$ F. J9 c3 R% e, h! dwhile[i < [trade-record-one-len] of myself]$ j- g0 q. a# Z9 m. r9 S+ R
[) Z6 R2 q, c7 X+ I
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 T# r/ P' q0 E$ m; @$ E
set i
2 W1 | ^/ W( U3 M4 R @! r# C( K1 N) T( i + 1)/ B/ y1 V( O& ~3 J$ X r7 Z3 y; w
]( } c: O5 W$ X) i: h# H: h, y
let j 3
$ h! t' T+ n0 b& x6 ?: Clet sum-money 0
) Q: d7 o* j$ }) a0 f# p6 g. qwhile[j < [trade-record-one-len] of myself]' Q, Y9 L6 `; M2 |
[# w. i2 U2 c$ L
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): V# b3 p" [2 C% I; ?) J
set j2 \1 |: Y; i l, w' `
( j + 1). z Q7 c6 n# T) W0 m* U. m
]9 |" W; G1 ~/ o; S
let k 3
) \' _% Z0 T8 G% a' llet power 05 C7 u& Z6 j% q7 L& m
let local 0
* q+ n, ~, T& `/ Z4 S+ Zwhile [k <[trade-record-one-len] of myself]9 Z- P6 | ?; b+ e4 @
[
; q( ^) e9 M- x( @$ A1 ~# |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)
$ P- h/ l4 ~& N& j5 ?set k (k + 1)
! j2 c# j @$ C# f& p E]
$ b( R2 ^2 F2 B( [4 n# Xset [local-reputation] of myself (local)
8 p( N9 q& o( |- Vend0 j5 M% z$ a# s, z9 C4 E
* s4 `9 N9 F7 x' }" _
to update-neighbor-total! U8 o$ a! H( I2 x8 x
- e x& K( i+ A* L O! k- k1 V: a4 d
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 m& ~) ]. d( w- {, Y& E! A
6 i' U; K6 R5 A8 l1 R
# f" b m% ^7 j/ |6 F5 q
end
5 n$ P5 ~4 f1 n) {% h
: d' }( Z6 f J$ b# _to update-credibility-ijl , y5 j& a, U4 w; X2 I
( [+ q" l8 j S; K1 c# k;;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。0 ~- u, W; y( j5 T- C+ K
let l 0! k- ]+ q' M- D2 l3 t
while[ l < people ]
: z) e* y/ P, X, i5 G;;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# _$ B. }& M3 a5 W4 r6 U
[
6 H4 p7 x0 D* \' d$ hlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 S3 U/ h. ~$ S t, P6 e, E
if (trade-record-one-j-l-len > 3)9 G( ?& \! t" T$ B0 ]
[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
& i, _" e% m9 q, `1 zlet i 3
+ r3 w$ q* W" b3 C7 M* C slet sum-time 0; a) Q2 N9 L4 I9 ~# d0 N- f
while[i < trade-record-one-len]- U7 n$ E+ c. S- `8 _& M
[
4 _0 x8 F; ]0 X: J5 ]3 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 O& q: H% M N
set i
* X4 Z, F/ B. O' }( i + 1)
# I `+ `" B7 o# l2 `8 X]
: J& G, }; U0 L( ?2 g' \let credibility-i-j-l 0. Y( w2 x5 S% X9 I( y: [* f4 {
;;i评价(j对jl的评价)# C5 [* s7 E7 ?7 U4 u0 k# L
let j 3
! t$ z/ Y- Q- Q3 M/ Nlet k 4
% G1 J* N% Q6 ~- O2 lwhile[j < trade-record-one-len]5 n" ]1 K$ n! M7 a+ Z, G4 Z
[
5 A9 h8 l$ A( {% v# U& n vwhile [((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, | T& K; I/ u% ?) g4 R% ^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)
) W! m. C. A6 ?7 J9 D& v- Pset j5 C# H* J- Z8 Z8 N" Y k& k$ x/ r* \
( j + 1)
- T( u' o; j- U, s4 S- |( z]
6 r5 P( w0 l8 e3 V$ ^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 ))# E9 x4 i e" r% |1 X5 T' f+ }# K
3 e0 W2 P8 K7 s* m3 Q. o" ^
, C3 I4 y$ q! {1 q. H* [, dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); \8 S/ K' o( _! L. ]6 F; S
;;及时更新i对l的评价质量的评价
4 c+ q" G5 x" ? o! w, ^1 Hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 j ^* B8 e" @$ `set l (l + 1)
0 f& w0 L. O5 j1 ]]1 f' k" W( ]& X# S( ~9 l
end
# Y2 Q' P+ d) Y5 s( ^! o
, l% ^# N! N: Hto update-credibility-list u0 `* E5 u: D# c
let i 0
! x- k& N* l8 {9 G; F. gwhile[i < people]" H# b* c$ d$ H, H2 `; D
[6 ?, ]6 U; [+ w u6 b$ T
let j 00 _$ Y' ? l" ~7 ]: @4 ~) J
let note 0
* A- F( c( n. R. Olet k 0. G/ |5 i, c& u; e1 |0 G5 O5 \! r% o
;;计作出过评价的邻居节点的数目# x7 F, O7 t9 v! I3 j
while[j < people]) H+ h: \' L% ]) x9 J
[; X( w9 s, S" B' D* @
if (item j( [credibility] of turtle (i + 1)) != -1)) R; L: i( }1 [ F5 A- w- x, V
;;判断是否给本turtle的评价质量做出过评价的节点6 @% j) ]2 l2 O# ~* x7 a* s
[set note (note + item j ([credibility]of turtle (i + 1)))
' i0 y7 w+ }, R$ E! s9 l;;*(exp (-(people - 2)))/(people - 2))], R. U) U3 ?( v$ E
set k (k + 1). R6 A, S& S" c) v
]2 R; v3 q# F9 s, r# c1 R( ]
set j (j + 1) n, I% ?; t+ U
]
3 [4 i6 S5 U; V% Sset note (note *(exp (- (1 / k)))/ k)7 l8 u6 ?+ ?* G4 `- c
set credibility-list (replace-item i credibility-list note)
% i A+ U9 |: ?( u; T' G- @0 {set i (i + 1)
/ F. }, }. y) f" V* Y8 P) {]* O- {5 Q* G- S/ ?0 y6 `2 g
end
5 l2 ]' s1 f& i2 }9 D* ]# O8 ]/ q
to update-global-reputation-list" v, U% V: v1 }
let j 0- @1 G+ V9 `9 V @1 d6 O
while[j < people]7 a2 q6 t% m3 C( I5 |
[' ~% I) y5 T! [/ s" Q W( x" ?* X
let new 0
. |+ f6 ]' q# P;;暂存新的一个全局声誉& Y5 k0 o" s l9 c, T
let i 0
) @6 n3 A# W5 X# Slet sum-money 0# g4 [: u2 q+ I; G: g
let credibility-money 0# t/ b+ {, d4 d8 [
while [i < people]+ @* u8 |5 o$ Q3 x5 W
[1 v* }( r, D9 r5 j1 o5 {4 D h
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ a. R7 V" v4 G# X. a" N. Nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' e- [9 L- C1 N+ [, g6 I6 v, vset i (i + 1)
$ i9 H7 f3 s7 U* Y8 O+ C. D]
! ?9 C+ h- v* A8 r/ ]- }& @8 Qlet k 0
: w7 ^/ k- Q; c$ V) Elet new1 0
# d! O2 h# x/ X2 f, t- \8 K/ P- n( h Ywhile [k < people]
# p9 h. _$ h1 c( x[+ q8 K6 g# N5 H) d
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)
5 A6 ]0 `3 F3 V' ?6 c: zset k (k + 1)' p9 C1 Z1 a' N' \9 G& u0 F2 t4 k
]& x, o. _* q7 L- R& ^7 |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! G# {5 e9 P4 Uset global-reputation-list (replace-item j global-reputation-list new)' x0 n1 |# @0 H0 [
set j (j + 1)! E- h3 Q4 c' N/ `
]
" k6 Y2 O2 g" F( M- I6 Nend
% W& v0 ?1 e8 |; \+ c% h7 }; I( {; B7 y
0 k9 T G# F f% H6 ~, G8 W7 \! m" x5 @( i! h# T5 n
to get-color2 K8 |; T s- {
* S4 y( g8 S# @2 a/ Xset color blue, t- m: s7 y: h7 W+ Y6 t1 q, }/ y
end; E# I% |' H, @6 ^1 W5 u% T3 n- K
; \; y" Q" x& ?7 ]# P: l! g
to poll-class7 u/ F( r* R9 }
end
, k) ?9 g" B' k8 T
f5 q. S9 O6 D9 z) D6 C/ a3 S) M1 X- Nto setup-plot1
$ _$ q* Y; S3 n7 I7 K8 U/ p8 h
: W" ~ N* E; b7 v4 `set-current-plot "Trends-of-Local-reputation"( G/ J( j& j% L9 J6 b6 c) b
; w9 d5 \) H& R7 `. ?; o7 qset-plot-x-range 0 xmax
4 O) K6 L( ]! g! n, D, I
3 S5 ^9 Y3 e% o5 y+ j) V/ \/ p N4 gset-plot-y-range 0.0 ymax3 o% u1 a6 J/ F" b
end
: b6 M" A% ^3 m5 M
5 U9 r! n, T3 p5 H5 eto setup-plot2
- A8 y8 ^3 o" M
! B/ p& D$ d6 D! y$ e% R8 ^. Kset-current-plot "Trends-of-global-reputation"
+ j: C1 K4 I2 m3 C
# Z Q7 C. Y; w- cset-plot-x-range 0 xmax
& A5 W1 d% j3 ^: F% E+ z
$ j. D, k/ d* n4 jset-plot-y-range 0.0 ymax
& U/ V2 y7 e& {4 D/ g0 bend
! v T- P% k8 H2 g O/ b, ], l- u2 ~8 d7 G! C1 c
to setup-plot3
( Q7 F. o+ J% i) W- e2 J+ F7 B: V% f1 _
set-current-plot "Trends-of-credibility"# g, ~/ d& ^2 R' ?
- @; B' G6 j3 [5 i! \7 c9 \3 ^6 ~
set-plot-x-range 0 xmax# Q) Y" {- D/ D# R
! M: n% x- ]$ W7 e; U- I! G: ^2 F0 jset-plot-y-range 0.0 ymax( Z; U, V( ]: o- U
end
" h4 y& s" J9 E E6 A4 r- v
/ L8 Q4 X. G- Z8 ato do-plots: W3 ` E1 H2 }0 T* `4 `1 V
set-current-plot "Trends-of-Local-reputation"
, p6 a( `7 C$ s' w" x# Tset-current-plot-pen "Honest service": s4 W6 c. X! M
end3 _! E) |! a" M
! @4 _* g2 K6 g: s
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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