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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
9 c' y# U! K) W4 C- Gglobals[
" _, U& D9 Y1 O$ w' K( }1 Wxmax0 _2 V7 n, s0 I/ r8 F5 |
ymax
+ b: f0 O8 S& q$ a; @global-reputation-list" Q) f4 r! m* b- {( |
3 G# j. a2 G4 F! J* W
;;每一个turtle的全局声誉都存在此LIST中/ @3 R4 _$ p2 R: L/ X# _, t
credibility-list
6 |$ e' E0 m4 b0 S* a5 F) C) o;;每一个turtle的评价可信度
" u9 h" o! Q5 b7 M; d4 dhonest-service; h& N7 p. p7 e8 R; z( ^
unhonest-service
! a2 r* o, T. u, Xoscillation
) `, [; s' Y: A* _- ~4 w$ d( Drand-dynamic) v$ I5 Y$ I3 Z x6 d
]: v' o. b! c/ g: S! q9 }
+ h, y# R" K5 I v$ z
turtles-own[
% [% f6 ?. T4 K F9 D5 Ktrade-record-all- j( U9 V0 c8 C
;;a list of lists,由trade-record-one组成$ o3 [& t3 t' e( P
trade-record-one
5 o: B6 |3 N L9 {;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 Y4 P/ t+ F) K
9 j7 F/ }" c: W: G- y8 J9 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]]
^$ g) ^& R7 s6 Ttrade-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]& s9 ]$ i( Y$ d. b. {; l2 n+ A
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
" V* f; O- E* B# T* Nneighbor-total5 I7 F3 Q! s+ e/ ~
;;记录该turtle的邻居节点的数目8 K( s- ~6 I% F
trade-time
% N3 U3 l$ M9 ]/ A3 B) C! J6 E* K;;当前发生交易的turtle的交易时间
1 {" k& N/ ~1 R& G" [appraise-give% I+ T8 d6 n9 e3 P4 D
;;当前发生交易时给出的评价
0 e" t2 ^" C! [* B% _; ^0 L) x* w+ pappraise-receive
9 |& P s% r) v$ W# w2 Y% z) ]! u;;当前发生交易时收到的评价
4 z0 _( k0 H% w7 q l' S* vappraise-time
7 ~% D8 u: p5 ?;;当前发生交易时的评价时间0 u0 g+ \2 t6 z7 f1 ~' G( n r
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* m. p# n/ G7 ctrade-times-total: o: K" u' U J+ L5 I
;;与当前turtle的交易总次数- a% B% u: d& ?
trade-money-total5 x6 a; z, ^! s8 ~
;;与当前turtle的交易总金额
7 l- ?3 d, N7 A2 @) ?+ U7 vlocal-reputation. }8 |( _# t( h8 h
global-reputation
7 b" @! R- O" kcredibility" H$ Z' s5 z/ v6 Q3 H
;;评价可信度,每次交易后都需要更新
5 h+ ]8 ]5 V* U! A( g! U1 m6 V" Ncredibility-all
( k! d+ Z' U9 E;;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
, H8 @# S8 r/ v4 n4 {; _" B6 P0 a! a/ {) A" L! ?6 v
;;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0.50 B9 U7 Y+ d1 i) C2 E' E* H
credibility-one& b& g% p$ h4 m0 E2 H3 [
;;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
) i F4 |+ X$ p& M2 Lglobal-proportion
9 G6 S% R8 j& w6 W$ g0 _customer
: v. a( P G! v* o ncustomer-no
, A% \3 D$ D/ O& `, u$ T: Vtrust-ok
5 F8 K3 T6 T* R% xtrade-record-one-len;;trade-record-one的长度+ v4 K. N# B4 l
]
% N) v1 k5 S# f) f
% F' N& g8 ~5 o: b3 k" `4 e;;setup procedure
' S) k# R: K& T* g+ b- Q \$ R6 N$ U% r5 G# m$ J! }+ {
to setup/ c+ U: p) b; a! o' D" T. W. n U
6 K5 C0 M6 k: q" q
ca7 Z( l# m% y# e; ^, b
& A( N$ Q6 e" Ninitialize-settings( q! F; K6 \: f9 E9 {1 g0 w
4 p8 e; X |+ |# [" {crt people [setup-turtles]" l, k' i( D! U0 [
3 O) i2 V4 ?0 i" z
reset-timer. s+ Z) z1 F6 K7 b
: K/ M) S# u8 Q! dpoll-class
" m, [& M( N/ m `$ p
: r: q9 N, {7 q6 Hsetup-plots
; P* ^' _: |4 h4 u6 H x* S V+ C p' M: v/ D; X+ I; y$ }
do-plots$ v. c5 h& H9 ]* [& W9 [
end$ P! ]5 {; l( F9 N) M3 J5 m" m
6 W8 o4 o, [6 ^; S0 Nto initialize-settings
% @( R Q& |: k: `5 E
e: u% e- Q' P F" ^2 S# xset global-reputation-list []8 ^) N, G' v" }/ Q4 Y! p
0 J% l( y. R/ k
set credibility-list n-values people [0.5]
! \9 S7 v3 G- G' w4 p, y0 {* _( a& ]9 G
6 f: ]8 ?. I1 Pset honest-service 09 q2 }1 J+ L2 I* c
% \4 @! u) K3 f0 `
set unhonest-service 0' ^$ ^3 c$ A2 n
% M" _3 F& `+ I$ V; n- O; S( _
set oscillation 0
1 G' g2 J6 v# G5 m1 }8 T' m$ r( v4 X2 z1 N. h& Z: c
set rand-dynamic 0
2 O) P; s0 J4 }( B0 _3 Rend
( c, D: a# N6 } q2 d/ a+ a) G, Y. V$ }% b& r
to setup-turtles ! K! O* X$ u. V0 c1 y) M( B4 S
set shape "person"
; [/ F+ t6 e: `9 Hsetxy random-xcor random-ycor( J( R. ~" Y; u1 K3 R
set trade-record-one []
* {4 c8 E! k' K* E8 d+ e) M) @2 i8 i# M# k# S( l% F/ ~
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 ^) Z2 I% ^% \1 L) q
8 a7 v X( p9 `, S' i2 r# mset trade-record-current []4 V" R* U% s( W) g2 E- Y
set credibility-receive [], e* N" n d# A2 S( w
set local-reputation 0.5
% T8 m( g$ R7 z" ^set neighbor-total 0, P' ?& o1 `: Q9 B9 x
set trade-times-total 02 A7 ?# G. ]& q
set trade-money-total 0
3 U3 o+ g0 {9 k% X9 Uset customer nobody
: Z9 e: t5 H7 A8 r0 Oset credibility-all n-values people [creat-credibility]3 J6 ]# c! T, G7 t4 X `7 {! p
set credibility n-values people [-1]* f8 o, A8 j0 H1 \# v
get-color
6 u( @8 a Q1 q% A# ^+ R
4 K. q0 r3 z) {1 l! y" zend* \9 I$ I; o) f
, Z( D4 A i# P3 x& A3 D) M
to-report creat-credibility
0 O( [* |! p- Ireport n-values people [0.5]
1 I& a5 Z0 F: q; p2 B$ aend
( y8 |% J! A# D5 y8 ?* v* u y" Z' I. l5 ?; @! m
to setup-plots
5 |6 Z% Y# Z3 N* s/ p5 e. d0 \; w- k
set xmax 30
' c6 F7 u' t1 L1 T0 u
8 T/ j' n, ]+ \, E! U6 X5 f! eset ymax 1.07 z% l5 p5 x6 m' U h1 j
2 j1 n$ b3 t, H) T; s2 h* Dclear-all-plots
# T6 ]3 F, k1 ?$ w+ V5 g' ?
: d* T! E. p- H9 Fsetup-plot1! ^" D' _/ ?0 U7 b: x" n8 m
: ^& \! g8 Y8 c* Csetup-plot2# f/ K+ c5 ]8 g7 Z: A) ~8 ?
: U! V/ F: T- S# j
setup-plot3
0 o$ N+ n5 G' R; x7 o. O. `end
/ D o8 K: x6 ?$ g1 |2 x) O' G. V: E6 n( Q: l- B1 I
;;run time procedures
8 e/ b1 M( O, j
/ g$ B- ~2 O) i$ O! S. Qto go) H4 p; W) V1 w
3 Z, ^$ T) U$ `ask turtles [do-business]
' o# d7 X. [7 i' F7 Xend
$ t' r( c* o/ K6 p5 I. T& X& B, e7 F: H4 Y/ j2 K! ~0 E
to do-business ; E/ V# e0 D6 k! T# k
T$ ?$ ?* P+ V; q( T( _5 t
' X1 a- Q8 f6 a* n" w3 l, Zrt random 360+ ~; n4 {! ?' Z5 @
, |4 a: M; d+ s0 f: jfd 1
( K" p7 q y" k6 Y3 t+ ^+ d! [, K5 y1 N
ifelse(other turtles-here != nobody)[' B$ S [9 V( v
( Y' ]% W p2 @8 G8 y( xset customer one-of other turtles-here
$ P2 }$ y5 z2 p3 F& {+ g+ S2 u! K: K. \! C- p8 j
;; set [customer] of customer myself3 X* t8 a/ d; j( z8 o1 |
8 ]7 l4 {: L5 \$ c# A1 ^set [trade-record-one] of self item (([who] of customer) - 1)
9 c$ A& h7 C( T! l' S. M2 `[trade-record-all]of self# J8 ]9 e( z4 u: F- U* Y, Y3 Z
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. W/ N+ Q" M+ ^9 B1 \
1 L. O- E& }" Z5 n, J- Dset [trade-record-one] of customer item (([who] of self) - 1)
, C) A8 p+ ?! C" l( y[trade-record-all]of customer [! R h4 z2 X; O/ U( k# a6 n
7 y# R$ c6 [& ]1 [6 V {
set [trade-record-one-len] of self length [trade-record-one] of self
' S! l" J/ ~3 T& }* w' P& A7 |2 N- H% z. d7 @5 {* f- L: j
set trade-record-current( list (timer) (random money-upper-limit))# m5 V2 A. Z7 ~- S
0 h( v' p3 M. b' b( F
ask self [do-trust]
$ m! W$ I( ?) n3 E. g2 I% j+ j% ~# U;;先求i对j的信任度
- W2 g* |3 [9 n. L1 e( f1 O
3 z* F( `4 O( b" H. Zif ([trust-ok] of self)
5 W5 h8 v3 ]7 q3 r) n9 Q5 k;;根据i对j的信任度来决定是否与j进行交易[
x; Z! E% V2 I/ hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself y! v6 I, c$ E8 O j! F
: b3 i0 b- p& r- s
[
% F& s N& e3 T3 B k& x
# P' t% K4 E/ U( I7 T1 h' sdo-trade/ i3 _) F$ A0 I5 C) `. r# A v% U
3 I$ J H* D/ P$ X& w! `
update-credibility-ijl
+ p" X1 b" o0 }9 L$ x* L1 e' |# v" Y8 ]) y
update-credibility-list/ q* A5 p5 C: L) \/ Y0 c" ]$ \3 l
. V; I9 C8 [7 L% y7 i
1 i6 n( t m9 m" q: h' V# Z+ k
update-global-reputation-list
- y) j. u N/ A/ v; O3 ^% ~- c" e( g
poll-class: z, k) k6 G: r, Z% c
4 W- [/ @% l- U& W+ T0 Mget-color5 C, @' Q" O/ v3 a, C5 _* u
' _. Z: V* n7 _2 W]]+ W* X H: J% u9 _2 v) q# l* Z. d
( a t) o/ o; }9 O" m
;;如果所得的信任度满足条件,则进行交易
7 V# R, B4 k1 J8 u% ^
2 E: @" I P, W& G2 i' X, D0 E% D2 M[
1 u4 r! w4 Q+ T# _" ^4 t8 A2 x1 \
. n: g6 }) D6 K7 h* _, v% Rrt random 3608 t) d* V Y9 Z; V# `
6 l' k& F0 a: M' W' m: Rfd 16 E. U* ~# |4 t, [; S5 ?& l+ E
8 k, k X% e% E9 G
]4 @, @9 J f0 H; K" Z8 Y/ A9 O V% o2 w
1 p, M; Z3 _1 n8 l, h7 u2 Yend
% C( n; j1 M7 y
; t* f* _; K1 N6 T6 n: U; S1 t: p0 lto do-trust
, v7 L9 h5 B0 Y/ Q& H$ e* sset trust-ok False
/ z" m5 o# e' m6 ] E' i" k7 C, E" s) f+ y& e& P. B! ?
. {2 Q9 e% E- R9 elet max-trade-times 0
1 t+ S' X2 F8 X+ q9 M1 X G% K Jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]* V! f5 y# k0 J! t
let max-trade-money 0
* ?2 J: {1 H# E1 o- N9 Bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ y3 R5 s9 B$ V. `/ Ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 |9 E2 s( d% w' P% `
. s0 o4 M& ?" J/ O6 @8 T7 f8 z4 a; b) W* _5 j) e
get-global-proportion3 f- T8 H j0 d: X* k/ O" \0 b
let trust-value) N* U0 F' G" e, G, ?, }
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). M, t/ M* M# \1 W2 ~6 c4 Q
if(trust-value > trade-trust-value)
+ O4 q M; g4 A+ t4 a0 K4 e+ G* M' F- \[set trust-ok true]! R7 r) g' e) A9 ^
end, L6 u3 A) n' H( @
$ l$ }' `4 ] j x( ^$ x8 [
to get-global-proportion- h- [: C6 e- e7 N
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ b, o, V7 s2 C- S; z8 S
[set global-proportion 0]9 Z: b% x0 w2 v; \' e; m
[let i 0
/ W8 ^: N* W( z0 j+ E9 s) K4 X xlet sum-money 0
4 J v6 l/ ] y2 p- c& \while[ i < people] @9 s @" X9 c$ h, m) J
[- i$ ]: B. o' Z3 ^! A( S/ h
if( length (item i
# N8 g0 Y. X+ t) U/ H$ Z- v[trade-record-all] of customer) > 3 ) y- z4 T- y" w2 X: w2 p* }
[
! I; U& y* R* n. W5 Xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
- u1 O9 V/ u/ T& J5 R]( q( }- j$ O" G! N8 ^
]7 n6 G! q$ r- z$ Y; Y
let j 0% \; O( C4 F, ?9 }5 q6 I s- `' m
let note 0
|6 `- w& x, v% s; w' s) w7 Qwhile[ j < people]
8 a8 P* ?6 r" y0 j( g: @[
2 g/ u) G& c: |7 O6 }if( length (item i
) V# k$ h [8 O; e& o1 G; m[trade-record-all] of customer) > 3 )% u! P- `/ U: I* M3 S5 ?1 l
[- _8 V0 W( R$ \
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 y* r D8 b1 ]% o* Q A- R[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( L- ^5 h$ w5 m2 {; y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" [1 ~5 _/ T( E* K4 }% ?
]5 X4 P+ {/ X2 Y# Z) d; i* r1 w
]( c1 o1 N1 u" y" U% }7 Y# x
set global-proportion note3 t& ]; F4 j4 Q a$ u1 W6 {
]1 { V0 Z O! }( V
end4 z6 h' A) N! Y( ^
* F: m' o3 K, V2 p1 m/ d) v/ U
to do-trade
4 h/ T% p2 k; S;;这个过程实际上是给双方作出评价的过程
, I5 t: Z* v1 u; |6 }3 J4 Z% @7 @set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 T* b( N; W2 K; v" n v+ U' Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 m, ~1 c1 R. g( Z1 g
set trade-record-current lput(timer) trade-record-current
* r0 P+ g6 c& K/ |4 m2 h;;评价时间+ x2 [! S! S* S0 _% K6 `' P0 g/ [
ask myself [
/ v* U3 R) Q6 a6 Vupdate-local-reputation
; A" b6 A9 C+ q4 I5 \( W- [set trade-record-current lput([local-reputation] of myself) trade-record-current1 c6 z. Z- N" k4 f( n0 @
], k @5 {. d% F! F# t. H: r, [
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ n' I" h2 X. H j j;;将此次交易的记录加入到trade-record-one中, e) N7 S& u* g, h6 N6 }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
( @! r3 t; l" C. Plet note (item 2 trade-record-current ), }1 F( v" Y5 [5 \ \
set trade-record-current% Z1 U/ h: R1 [* G$ u
(replace-item 2 trade-record-current (item 3 trade-record-current))& S% Y; Z [& i$ s! `
set trade-record-current! G0 p4 @6 J6 Q7 D
(replace-item 3 trade-record-current note)+ d, y& c6 u$ Y1 L% v
$ z, y4 J8 m0 h
! m4 D5 @! o. yask customer [. Q! E1 Z+ o& t' e4 s; Z
update-local-reputation' o3 K$ @) n6 u5 p5 T `
set trade-record-current
% z7 m3 t: T# A. r8 [(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
1 R6 H7 X4 A3 m0 I4 F" m; S/ k4 l]
* Y8 S9 k9 q" Z' o4 I& F1 t
7 \9 {$ d! Q1 n& f6 \: K% B7 ^- |
8 F' V$ @6 H, X7 ^# N. ?set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( D2 o* W/ _4 R' I
# x! p0 `2 I, C: e# k1 v$ Oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 L6 e! z; q4 k, b h
;;将此次交易的记录加入到customer的trade-record-all中
I& b* C% n7 b J: Fend* k& L8 s( r0 l6 [* d7 K5 y5 Z+ r
( B6 Z5 a9 z) M- z5 q& L) rto update-local-reputation( l8 l) O2 G8 q: P$ l( ~
set [trade-record-one-len] of myself length [trade-record-one] of myself) s0 c. A7 u% P' T5 g
6 ~& J- b, S/ |3 z+ x, e9 r1 ^ h. B
3 a# Y' |4 I0 `;;if [trade-record-one-len] of myself > 3 5 @0 F7 B- s+ }, ^, w
update-neighbor-total
0 ?2 [. @. U- I' P- C, }! h;;更新邻居节点的数目,在此进行) i, B1 @# T, Z R1 x
let i 31 n5 y8 e A( O% x* X. T* X5 E+ n
let sum-time 0& H8 @; D0 Y% l; [/ F5 T
while[i < [trade-record-one-len] of myself]- }5 L+ b+ W2 @, B2 x' e
[
. N4 i% ?7 [7 n3 V. G) v, ] eset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 e8 D ~ ]0 s! Fset i
+ Y9 P4 r% P/ }$ E( i + 1)/ N: o! R9 y! z* _6 o
]
6 G1 g* o$ C- h% Nlet j 3
0 b- `% c$ x; p/ u8 Elet sum-money 0) M8 k c' t8 P4 y% b
while[j < [trade-record-one-len] of myself]/ }! R; Y! w+ F; U* J
[
8 n4 ^8 V6 d6 Y* r8 h) oset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
( i1 x+ W$ E% q Y, lset j
8 k& M% X+ W2 t2 ]4 z( j + 1)
8 B: u! ^2 v+ Y0 w* S]
6 b- D, V# x+ `! mlet k 3% P) [& @9 X' H" `
let power 0; A0 s1 l) {6 O8 s
let local 0
, D+ k7 u+ T7 |/ ]: Bwhile [k <[trade-record-one-len] of myself]
6 o5 _2 C4 j S0 j8 T0 M[
& r) l* Z% r" v3 m4 @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)
6 B3 u# A0 ~, Q9 N5 ]' \0 J0 \set k (k + 1)/ Y6 C, A \- g8 O: {
]6 L; ?/ h% p1 W5 p; T
set [local-reputation] of myself (local)7 S' ?$ l" w% {
end/ g! _; x* \' f; P9 z
' x- X" N0 W O5 U% l! pto update-neighbor-total6 j/ a" ?. @ I% A3 g ~; j
. e' V% V) ^- F: `6 Hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# u, k9 S# Y' E% S" u: }: t' `3 Z# f
- c) R8 G; N/ _. k3 P- v! Q
end
* v# s1 ] E' ?+ p! e
+ p# ^, P0 a1 @) c$ w. mto update-credibility-ijl 1 Q" S: u" U. P3 Q
( w: n# ~& s" R% t7 t;;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。
; {" \3 j2 g/ p/ I) dlet l 0. o, E7 j1 T3 U- Q. O: Y6 c! M
while[ l < people ]' g9 z( h% l" S3 e' _* X/ |
;;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3 X7 p6 E; ?& _. ?7 r( h i8 E
[$ o9 A0 s3 N% e* w
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* z3 y" G3 P1 h5 ]+ bif (trade-record-one-j-l-len > 3)
) C" Z0 |' j# o& \# g[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
; g% q' y1 i+ X/ I- a( |let i 3
1 O5 s' [- H `let sum-time 0
( K( z7 H; b( Nwhile[i < trade-record-one-len]
+ o! `1 t" e& r9 p; \8 j* e I[- b B, p" d: A- c' `1 @9 @2 X
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )) U7 N6 _; ~9 l& Q& A, J% V
set i2 c" u% X8 x0 o' J
( i + 1)
9 X6 g2 Q3 }" ~# `! _9 r' x]
! n# p9 O/ A7 P% b" m7 C& Wlet credibility-i-j-l 0
' r- H4 i. B" w& D) V" G3 ];;i评价(j对jl的评价)
, i! Y, D2 R! `let j 3* T& a* m' K3 H+ H" {- c& p0 w
let k 43 e) Y+ ~ c4 c# D: F' T
while[j < trade-record-one-len]4 I- [9 a% o& ?2 J* \2 o3 ]
[' c7 t# Z3 Q, h* v* ~( t2 P: G
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
5 x7 ~* E: x2 v3 N( Uset 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)
# e2 d7 D: o; j, g- uset j
/ Z' k0 K ]+ b' [7 B0 J( j + 1)3 i4 K3 A+ Q) L0 F& ^# t
]3 T& i7 I5 g8 _4 ~. ?; {0 d
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 ))
* b4 n! a" m: ?# a6 B3 Z Z& e; D( m- I9 ^5 e( @, n
4 j# b7 w9 L9 E9 clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 T) d9 j1 x& P1 h
;;及时更新i对l的评价质量的评价
, s+ ]& T4 L% x+ T( E6 a1 S, bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 Z1 c9 i* s2 V2 Bset l (l + 1)
; k. m( [' q0 ~]
; A: ^& y+ _7 r2 n' z! C- T/ zend5 {: ?. ^4 J8 \- L
( w6 \( K: @/ K9 w# l
to update-credibility-list+ {6 x6 a; r5 b# _" S4 \
let i 0/ ? V! r$ u/ w3 v% z" z9 I m
while[i < people]
! Z) N5 b; ~, h1 w* x- Y# m[5 s8 a/ y" x$ u0 z! S5 q$ u3 }; c3 S0 c
let j 0
, K# O4 K2 B6 c) blet note 0
, J0 m2 }1 d; H( }& h; y, nlet k 04 X' c" G/ p9 o" K' A( @
;;计作出过评价的邻居节点的数目, L- Z" L( w3 P0 w u1 i9 x! K2 }
while[j < people]
4 f8 i- }* r/ b- a5 Z[' U' ~, H9 y+ [% U
if (item j( [credibility] of turtle (i + 1)) != -1)' w( `, r2 J: \0 Z: D; t
;;判断是否给本turtle的评价质量做出过评价的节点
( g5 A1 C4 p& R- P8 K7 B[set note (note + item j ([credibility]of turtle (i + 1)))0 x% ?( \* ?4 T2 k0 I9 K! N
;;*(exp (-(people - 2)))/(people - 2))]
9 q1 A' F. s$ h1 tset k (k + 1)
( j% K' U, t4 ^]
0 E8 B+ [; J$ L+ E+ cset j (j + 1)1 r* @0 w- S3 L# N
]
6 z% s/ z" s" h. t* p- Dset note (note *(exp (- (1 / k)))/ k)
# z9 W9 y- j# x7 S5 E, \- [set credibility-list (replace-item i credibility-list note)
5 i, B8 g0 d9 t+ g& g' \, Nset i (i + 1). c3 V! ^0 D8 K, \3 `
]( V/ B3 z* ?9 j
end
e5 c, P: w3 B ?( G+ _5 e/ j& R
to update-global-reputation-list
9 A) P* q$ o6 C5 _: o( Ilet j 0
/ Q: r( r. f+ h5 `* {; V1 ~while[j < people]
4 v8 t& M% _5 H) C7 M/ V[
3 s9 X) n' ?& g4 e. }let new 0
8 x3 v$ {" S& ~+ L7 j3 @;;暂存新的一个全局声誉+ u2 y7 y, {) N$ i" d
let i 0" _) u2 p& @" z, c: J' K5 ?
let sum-money 0 e7 \* K8 r& u& d5 w) Z
let credibility-money 0
0 g/ N/ ?% X3 I: }7 }while [i < people]
# \* l( Q2 I1 S( P, {3 u" U[
' M( q; _7 g$ S x2 V) ?set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ ]6 E8 h3 @6 M0 b/ C2 |0 B9 U
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! b: G$ Z1 d1 B4 i/ u0 l7 `set i (i + 1); h4 i. P ]7 P) l
]
4 X4 v+ I5 P9 w1 o$ _( o; `let k 0
8 {* r- B, X) C9 Hlet new1 08 [$ S" C j) ]) N/ Q' G
while [k < people]
( o) E9 d3 P. p* t' J[
$ F5 y# j" @* D% B ?- z/ U7 Z; v% dset 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)
R, n6 o% I8 Bset k (k + 1)
2 k7 b: n! ]# w9 \' T+ W" U]
. i8 W- i* O' q8 k8 {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 l1 C* G8 F0 U+ l# D0 g* X
set global-reputation-list (replace-item j global-reputation-list new)
8 K+ j6 [. _, |- p! g/ R- oset j (j + 1)6 l, R- W# O) b( X
]
5 K0 |' b s/ e s _* Kend( ^+ W5 ~& U0 T- |3 u$ X, }
9 u; H- n |) z# f& Q
" B# Y" Q# }" t; X! u4 Y6 Z; e/ z( M3 U+ f# y& l
to get-color
* z" t# I/ K4 {1 H: Q- [* t
# K7 r; i! _6 M$ {set color blue
9 f7 F5 g$ ?7 u" \) a, ]/ l, gend9 H+ ^" ]5 x0 h$ y
+ u& ?7 r1 Z* q9 S8 S& cto poll-class$ X; Q, ?& Q& ^0 { T0 W$ V+ ^ i6 C
end
/ J: C9 B' {7 S' g: x2 _2 N6 A/ q; }" _/ W# H3 M$ a0 l9 S: w
to setup-plot12 U7 i) C0 @/ c* r6 H
9 D, O3 N5 ^5 S) }& g# q- uset-current-plot "Trends-of-Local-reputation"5 Q0 r# Z/ u W! D; y
$ c* P' x0 {3 f% I! F# M- g( Hset-plot-x-range 0 xmax
. |- s J, S4 ]) d- F$ b5 s) S. K: J2 a8 t S1 r0 M7 `
set-plot-y-range 0.0 ymax
# f; C8 O/ Z X2 l( m) s! aend
5 k, ?+ w0 A% e9 N5 ?7 n, Q8 @5 `+ o" T+ n* U5 U: z6 }
to setup-plot2
' h: |. W4 k, ]2 T
( a d5 x% {2 O) ?& J% |set-current-plot "Trends-of-global-reputation"3 F& P0 s' ^3 ]' j
, o. U0 d. f, o. T5 a9 U
set-plot-x-range 0 xmax
% N3 T! ]; t) G/ ]! |4 z
& x- r- V9 O1 r4 Q S bset-plot-y-range 0.0 ymax" @( q0 _* G; t) V9 `
end8 E2 r* b* C6 Z. i" ~: G. H" i
( R. }( h3 t' e* ~: W7 D4 q" cto setup-plot3: h) R1 \% [2 a
1 K) g* F8 A4 b5 w) k" y
set-current-plot "Trends-of-credibility"
2 ]) v, e$ q9 p8 T0 A6 o9 B3 t& ]& ]) y9 a# `/ y
set-plot-x-range 0 xmax
4 d: v* D9 }6 N. \; Y/ ?+ K# p2 a1 ^7 Q* a
set-plot-y-range 0.0 ymax3 e6 h! O$ z7 A
end
" x7 Z$ w3 p8 }1 x0 z8 N% `: |4 `" c. `+ r% }( {3 r
to do-plots
1 t" R' g. T; {: T! o- y8 C7 e* a8 pset-current-plot "Trends-of-Local-reputation"
0 H4 ^; j( ]+ i* u/ }/ B3 y8 I( nset-current-plot-pen "Honest service"
3 x9 M3 w* T9 ?+ |1 w" a# M7 Aend
% K8 a4 k2 g1 z) n9 u) P y1 I7 h) J- X7 b! u7 K+ P' ?- m# S
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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