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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
: Z5 j8 |+ [# ?5 f9 [& n9 Nglobals[
6 P4 W5 c' p+ l8 |" E C7 Txmax
2 T, o+ A' Q9 rymax2 e2 ^) k6 T' [6 A
global-reputation-list
$ [& p6 _2 a/ T9 K, W& q2 l/ T6 T( y
9 i+ {& C4 z+ Z- t3 Y) Y& M;;每一个turtle的全局声誉都存在此LIST中
! k4 c% X; M: c$ I" j8 c- l3 @! C) tcredibility-list/ C& ~9 Q: {1 p8 i
;;每一个turtle的评价可信度- l$ ]! D$ Y- h' t
honest-service
3 U" t9 p9 [0 @$ Uunhonest-service
2 o L0 Q: K( @oscillation
2 e! V; V$ V7 x6 e9 [; _& irand-dynamic9 D0 f; B: U1 `3 u
]3 l5 l+ W5 [8 t$ X6 T9 X
; j V8 ]: Z+ Hturtles-own[/ W5 n7 O* o( Z2 G- l' A" E
trade-record-all
6 V: ?% `& N( Y3 \- L) n; m;;a list of lists,由trade-record-one组成
9 X, }) B( e& d% Wtrade-record-one
# v& @& `0 d8 M" j;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# o! g# A2 D& Y5 D- W& L. F& R. t/ O! `7 T2 E( Q
;;[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]]1 y z& p2 `7 M+ g4 n2 ]/ |
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]. F6 g+ q# E6 \2 X- X, l
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" O, v0 p* e8 j
neighbor-total
0 b4 w6 J: K3 j;;记录该turtle的邻居节点的数目
) Y, y8 W( C1 @& J# p5 q4 a* U6 dtrade-time
3 x" n% k4 v6 R& {9 A;;当前发生交易的turtle的交易时间# x* }' G' o8 J1 N- |/ [
appraise-give- y# Z% g6 P% B! P& _ p, j" v6 o
;;当前发生交易时给出的评价
' Z8 ]. j' {4 G) S( _appraise-receive
% e- P" @* d5 W3 w4 ]) k;;当前发生交易时收到的评价; I' u6 _, W1 v5 N& R
appraise-time
2 l3 s. n) w0 n;;当前发生交易时的评价时间
3 J* E0 l+ f1 f) b- E) hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
; C& N1 W- n8 P& qtrade-times-total7 b* ^) f0 G$ g. a! ~4 _
;;与当前turtle的交易总次数) R. G. [6 m1 q J, a( m3 W8 m
trade-money-total
( b3 K v; `5 M& E;;与当前turtle的交易总金额
( Q' A% ?* B0 J- Llocal-reputation
' s% M& y+ }8 a/ Dglobal-reputation
! [/ E" y' a# |, Hcredibility
: [; i/ m! x! M" g$ y;;评价可信度,每次交易后都需要更新+ \/ ?) B( ?& L, G' W" s' D
credibility-all+ K e" w! b' @( l d6 Y. j7 D9 l
;;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4 v/ f* q+ J/ e' j; o# F' X; C
2 J, Y& l9 ]) O, s5 _0 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0.59 O: \( X; H/ _- x+ l4 @! ^% @
credibility-one
! J: r6 W* c3 B& n;;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
4 k+ Y- G$ G) D! Wglobal-proportion
- c% g5 J t2 z, {% }8 c3 mcustomer
& N: | H0 f6 vcustomer-no
, p( v! g- s3 ^: X: {' |trust-ok$ `$ T7 H! ^6 q4 }% R, v" O: l
trade-record-one-len;;trade-record-one的长度6 @; [ s8 c$ O5 E
]
( ^7 x: u* e, I8 N! V
! Y4 @$ |' R2 M;;setup procedure
! a8 T, L2 J/ U$ ^9 N4 |# f
B) A4 I" s# p; s' pto setup) D6 u2 u1 |7 U4 j* M& ^* W; T
. ?4 D: m8 I4 p6 }; Mca
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initialize-settings
! X* W$ @7 G( ]* j. u4 f) r! w0 ?& q) _ P* z" s
crt people [setup-turtles]- T0 m# K9 N s0 a0 S
! }; H, k9 |# ?; f- i) G! f- b, u
reset-timer
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poll-class& e; J3 K, K: n% N* h
, e5 f3 b$ d& @. R. u
setup-plots
- c% a7 P. ~( l. N- P
4 D4 e$ d7 V, }8 J% [$ s \+ e: C" ido-plots( a9 B( v( [: ]0 o ]2 i9 h
end, h- U4 N- W! F/ D
" i# t/ g% F" ?$ r, z- Sto initialize-settings
+ E2 a, s$ _" S* Y2 ~0 m/ Q1 c& {( B7 j: A% _& z& x) `6 x
set global-reputation-list []
# x% P; \( X( C$ W9 b. W$ x4 |+ M+ D4 K2 u
set credibility-list n-values people [0.5]) f% \' O( `, i
, {$ g& w( z# R" t3 G
set honest-service 0
* I0 L7 g4 H# F" E( h( W0 h7 I6 o; {+ a# h/ X* U
set unhonest-service 0
" ]6 Q5 A% E) T/ d2 D& T: N+ j2 {6 C) A
set oscillation 0
: T8 }. ~4 O7 z' q1 n
7 M, ~. |% G) N4 ` e' [set rand-dynamic 0
. f: I: g+ ]4 D$ G! m8 Dend
" I0 Y, l3 w# S6 m/ J
. M+ y6 [/ S* c8 [ Tto setup-turtles 1 w0 T/ B+ h# v- ^' Y# H
set shape "person"
: W5 q% z* \4 k0 O* Y6 @3 g5 ~setxy random-xcor random-ycor
6 D: J S) J2 h% g Kset trade-record-one []
4 f8 E+ ?+ O+ u/ k( P) m
$ |0 V; F% \8 b: z6 x, Rset trade-record-all n-values people [(list (? + 1) 0 0)] + E0 _* d& b% F
6 S7 c# B4 O A; B% k
set trade-record-current []& a6 o+ ]; M5 w4 t; u
set credibility-receive []
, p) v' A: U8 b4 S- c' U$ F; {set local-reputation 0.5" s9 `! o( L; p8 p7 @
set neighbor-total 0" b. L+ S* I% V; W! `" B! \* y
set trade-times-total 0* j( a' A7 ?" w0 R
set trade-money-total 0
* U4 Z5 t" g' ?) L- V/ [set customer nobody
0 }* Y4 d. o/ Q' k/ H1 @set credibility-all n-values people [creat-credibility]- t' h+ E0 J. k& K, Q2 x7 b* o
set credibility n-values people [-1]
E9 r0 N2 R( K" b$ D! M" i2 i( y8 Vget-color
1 U& x5 k7 g* K$ `6 k: w. c
* `& C8 m" N% B o F8 R- eend
" J$ P! J$ v2 A) v( O0 x6 D7 t1 i* g
to-report creat-credibility7 o& @& f d2 ]1 T4 d4 l& d- C
report n-values people [0.5]
5 M" g5 j7 ^* W. Dend
6 R3 c. g: @, J) ~2 K6 }+ D, A% g& I" m5 N. Z
to setup-plots5 _9 F5 F, s; @( a& ?
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set xmax 301 S G. l8 q* j. r, A
. m, S* d0 [3 d; [9 {) {
set ymax 1.00 o' M& ~& u4 k" f8 Q0 S6 V1 B; a: {
i h, {/ M7 j* {- `
clear-all-plots
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setup-plot1
2 G3 R% J, W2 i* e5 ]$ k
B5 Z0 u4 D- X; ?& z l8 Csetup-plot2+ A& g9 b' ?: R
9 U _0 B( ^9 Psetup-plot3
1 O* D' L$ Q0 B) y. T) G6 K/ s2 \% g6 A' pend" p2 K6 b0 k% U& }; V- e
% H6 { u I% Y;;run time procedures/ Z2 `, k/ Q# G& d" G5 U, |1 p
4 [- Z2 x( w. M3 X. Sto go
" ]2 W. g2 a" v& n4 b$ @& u U p( v+ J8 W5 _: }8 C4 T
ask turtles [do-business]
+ C' @! O6 @% O) K. ?. I; ]end
o& o4 Q7 m- x' R# y( ?4 x1 o) P* ^) J7 i/ \7 O. @
to do-business ( K2 E l( q0 y# {/ ^. Y& m; g2 |6 s
6 x! v+ c8 b w% ` J
# }* Y2 f$ e: ?5 _' zrt random 360$ f8 Z6 a4 V, y o4 m- l
7 J, y/ b+ [; ^fd 1
! X6 A9 x; U a4 O p
; v8 H) F- ~; X+ B& U; Sifelse(other turtles-here != nobody)[
$ f" e) R9 _: q. d/ U
$ p0 v- c( n9 _; J) d+ Kset customer one-of other turtles-here$ _" T9 @" D) J7 p% S
! K1 A7 Y" t1 \) h;; set [customer] of customer myself: U3 Q. J4 b$ l
, k: J, a3 @4 |- I' E3 ]set [trade-record-one] of self item (([who] of customer) - 1)
5 y( A# F0 Y) b4 c[trade-record-all]of self# z0 z' r% F7 \) [5 c0 d9 j6 `
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. b! h1 h, f% A; w& R
s, N1 y' }8 l" p9 R$ O! Q4 n% C* i
set [trade-record-one] of customer item (([who] of self) - 1)+ @: C. L. }; ` e0 V: y1 C
[trade-record-all]of customer
; ~* E8 F8 C# \6 X, E8 a% n+ {
. l: U6 A; |& b8 S* R, sset [trade-record-one-len] of self length [trade-record-one] of self
, D4 _2 ^1 O; y( E, ], g
+ ^9 o" w" d) \$ ~- j0 gset trade-record-current( list (timer) (random money-upper-limit))( S- Y) o; q% s4 f
1 W- h% O2 C; d" lask self [do-trust]
) O$ J9 n4 _% |, f9 C, q6 |; q2 J;;先求i对j的信任度- Q9 o% V+ _. t
0 q9 B7 b, p+ n3 `7 o% b. N0 iif ([trust-ok] of self)
7 s* Q( _2 _( w, k6 m9 h! p* J;;根据i对j的信任度来决定是否与j进行交易[( ^0 b0 M- v. D( J8 O
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 `$ k$ O% R4 R7 |* M9 `
0 J4 O- H! d4 f% a% O! x% A[0 L7 U" H ^( ~9 z q; H
$ ?0 z3 N3 z* X: S6 i" Kdo-trade0 \; g' \; J: ^, L; I. A' i6 g/ T
2 j- I8 T3 |, `7 g/ d+ N, V
update-credibility-ijl% b" @. H: B% c5 K+ ?
8 Q5 O1 C0 b0 x0 Q! K$ mupdate-credibility-list
/ n, S0 }- ]+ x" W
/ r; Y& g1 ~2 Y, s4 }# ^% V3 i5 W
0 Q" X1 v5 H; A1 V z5 {. l' b3 Pupdate-global-reputation-list
- }/ l, ~2 ?6 B7 r C% L
1 Q. G, ~7 l W, J8 S* z- npoll-class
" O e* y& N/ _6 W# C1 n5 F( ^# d; }6 Z, {' c! |# r2 R* {
get-color
* v" a1 \0 C. y! r! N8 d* r6 @1 P) n) t( S9 J& @! p
]]7 X8 U! R4 A- S& i& l7 E
3 \- {0 s% t; ]0 _2 N;;如果所得的信任度满足条件,则进行交易9 Z" _9 M) M. v5 m
( @+ m- W3 a* v3 j6 z% m" ?
[2 n& i6 t- E& G
' r+ B3 R2 i8 ~. l" r; frt random 360' h. E- O: W, C
0 W7 t, O6 L' ]% ]1 g
fd 13 a M0 m2 l; r: j7 H. K8 x
% Y( B( U, O+ e) N1 Q
]
: |& Z9 O6 L+ W( {2 O$ k- D$ |# \, u4 p9 O' i$ g2 c( @
end
4 c4 [! ]: `# X7 k) b z$ W+ m# n A+ d
to do-trust * s' b: M# U J; T' h
set trust-ok False! ^2 e9 t6 p: T$ d- A6 g
, q; C( n& W0 k) b4 n! y3 z
0 v* V- P t' N8 F/ H6 xlet max-trade-times 0
7 G6 ]& W/ Q8 l1 c$ |" J- o% J' Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' Q9 \. k3 B8 x# S4 F
let max-trade-money 0
+ S1 A0 w, w9 N1 M: ]1 h" D& E4 r* Wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 ^+ H# Z" U2 f* p5 q6 k4 }
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 V, o" E) ~0 ^+ A, @, P
2 }( T( B9 ]) r6 c2 N
& \# k J! Z2 mget-global-proportion
) `! P# ~, [2 Y: |$ J4 Olet trust-value
* b( Y+ X$ |* u" k7 jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)1 B' h! F8 H" {" ]
if(trust-value > trade-trust-value)) [! j% \3 E7 v" u' i2 [9 F8 C
[set trust-ok true]
8 [( A+ \5 p. c% c# n5 x. V. Wend3 L3 q+ b1 f" K9 S' e
" K0 z5 P! M& R+ r
to get-global-proportion- n( h! H1 r$ f: g3 a9 G
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 M3 a& E1 p9 Q[set global-proportion 0]
& B3 Y5 B1 a, v" I8 g+ ]: s[let i 0
, d% p; [9 } s R; l: {6 olet sum-money 0
M7 y+ p% @( [) z+ i$ awhile[ i < people]7 J1 t& Z: W; q! R7 o% z
[8 y: i" Z; {, W
if( length (item i( Q0 h0 }2 ?: `3 }2 ?
[trade-record-all] of customer) > 3 )' Q% R6 g$ u; X7 R6 c
[
0 k2 ~$ E+ n, B! `8 ?; Hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 G3 a& `7 t0 z7 Y
]/ v5 L4 P1 k" i) b7 N
]
1 O; `2 J* l! g( p# Mlet j 06 v( x3 o7 k8 G4 q" }8 T
let note 0
" C7 w% k4 s9 E& g- J) w, h- j' Q- G0 mwhile[ j < people]$ h2 `4 |7 F8 N
[
2 G4 e6 A+ q7 d' r; S9 jif( length (item i
: z* t$ [: r+ a3 J[trade-record-all] of customer) > 3 )
( k; ]4 k" {2 i0 j' G[8 \0 x* T, p% e( E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# C" C1 R+ Z H0 b[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 D' l/ F6 C; F, y4 F) v% j
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& F& W) k, }8 m8 u
]) p. @7 d& Z! O4 E' ?, f- T8 _) D
]
1 H+ ?7 m8 _4 W$ D4 y5 f/ y6 eset global-proportion note4 I0 T/ E* k4 O+ U5 a; N, H( {
]
% k5 d5 @; e2 G4 pend
$ `5 H7 F! ~% u& n r3 \6 D% i) d l ~ y
to do-trade% ~0 t; w- ]- V" T& s: |
;;这个过程实际上是给双方作出评价的过程 c S" m4 {7 m! w, f( x( l- k& H# Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 F! o/ s: k" x6 @set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% e: g5 u+ z4 n6 s lset trade-record-current lput(timer) trade-record-current# n4 |' n% v" [
;;评价时间2 s7 l0 G; H6 S: b4 B
ask myself [/ W1 h/ i# p) v" K8 c7 l# `. i. F8 Q
update-local-reputation
2 k6 j0 g3 A4 ]7 V8 s. _: l6 Yset trade-record-current lput([local-reputation] of myself) trade-record-current
1 u1 c, i4 {1 O9 {7 Q/ P8 A, n]
]7 n! F* H( Y8 W- Oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 A& D" U' ?$ p* J/ b! [, q! |' k;;将此次交易的记录加入到trade-record-one中
) v/ ^( x( l: \2 B3 A: cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 J; {) _ Z# C) U
let note (item 2 trade-record-current )
3 W( }/ B }' D4 H! g" oset trade-record-current) L# W, F4 r+ T, I6 J% X! m/ r* J/ O
(replace-item 2 trade-record-current (item 3 trade-record-current))/ j" _9 Y" c; U# F! G. l
set trade-record-current
! m$ J% @6 k5 }' i @(replace-item 3 trade-record-current note)
( `) o; t! s& H* D, ?- E- k6 O- l, ]9 m- C: Z
! G' \1 x4 A% y& y
ask customer [. ?+ ?# z9 M/ E: N0 e) Z
update-local-reputation
3 ?7 c- R. k$ U: ^- W) \9 D- \set trade-record-current# ?9 D/ i% d( l9 @ F: f. B* l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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2 J" A' n' J+ D( ?+ R% S, K' w! |' |2 W! K- |3 N
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 i- v- [% }; W: z
;;将此次交易的记录加入到customer的trade-record-all中; Y3 i; L; l( C# a
end6 r& E) v2 t' H! s* u4 ~3 U
4 u" j0 d! f9 Ato update-local-reputation/ e T1 g$ x _- U' w$ R$ _+ `
set [trade-record-one-len] of myself length [trade-record-one] of myself5 z9 B; ?# u4 W# e
- U7 C# x. \ W+ w4 V/ g9 K' J' |; J
$ |; {( p6 J: i% f' x; {
;;if [trade-record-one-len] of myself > 3 % j7 J" O( A1 N5 Z1 Q
update-neighbor-total
7 i/ S" V- i! L3 x' G3 y;;更新邻居节点的数目,在此进行
* P$ k2 j& }$ o! _+ R ~6 Slet i 3( I2 C* p+ f$ v3 \+ @, W y
let sum-time 0
2 V# S( [- ]& l% l* h4 gwhile[i < [trade-record-one-len] of myself]/ o3 ^9 c: N {+ j; ^4 D! \. K
[
( f( h5 {( W. p. y2 iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); ^. M' u9 j: j; D: S5 p
set i* a7 Q) k1 C4 N1 e0 f, [
( i + 1)
1 w0 ~0 L, @6 U) c5 A]% S% k2 o* \ h& S2 ?! @
let j 32 t3 J7 z6 K3 h9 a& n# P+ s6 V
let sum-money 0
8 m2 M0 Y+ i( fwhile[j < [trade-record-one-len] of myself]
: @; J5 C, ]9 s- Y8 R[
[- L* `& c3 _: D: F( d5 tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)+ K6 V- `& ?6 f% \5 ^2 V; C
set j
' t. v0 n+ u3 e' P) _. T( j + 1)
# J( w# U5 C. ^7 R]6 g+ Q" L! }, z4 ` B( y1 W2 M' U
let k 32 ^/ N- y% ~( J M6 w L% v$ A' ]# r
let power 0
1 X9 ^/ F& M1 }+ Dlet local 0
# I& c. ~! C( N% M" b0 E+ S( Swhile [k <[trade-record-one-len] of myself]. G) `+ y& ? `
[5 O$ R# c/ j* @! E, d% b1 K
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) & W3 B2 F) {9 r8 Z
set k (k + 1)8 G6 I) q Y |# w) ^
]# }5 Z" \$ l/ S" f+ K1 p& y
set [local-reputation] of myself (local)5 f1 E( p/ A0 L0 p: y; u
end5 L9 o2 T2 b9 j7 k' w
9 [/ Y' a& r0 C. m: J* _
to update-neighbor-total0 J: ], I# d; p. n* j" y8 K* p$ o
) M" y+ f4 X+ k
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 g9 B L) H; w: O) ?
, S3 v2 k; A5 ~
; K0 N0 Q" B0 t1 }, w
end9 `6 E+ r' U# M9 V
* A2 w4 q i1 J) s f+ dto update-credibility-ijl 0 J8 _) ?% n) p/ v
! G/ S3 F8 }) e. m
;;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。
7 }4 i+ t0 i) V, g2 r2 v$ `let l 0
1 w1 ~2 j' M: p- r0 C! d' Iwhile[ l < people ]
3 H) S! h: w3 h% q" 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& U: ~: |2 M2 O& A6 a" m
[9 L/ o4 F9 l$ N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); U! f$ x- }4 K5 i4 t9 V, X" I; p% x
if (trade-record-one-j-l-len > 3)) d0 b: N8 X" t+ z E3 \8 g$ B& k- w
[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
& c* c4 B8 a2 n2 alet i 3
: I5 O0 J) O7 h, f' e- H% plet sum-time 0; e+ D# W; M) ?. _$ v
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
* Y( o9 ^" K' \( S6 U7 J5 Y' \ oset i6 }# Q2 g1 P1 _4 L1 d
( i + 1)$ U, U5 O7 c) s4 p3 Y2 j: g
]
8 X% D3 a" R1 C9 V- O# Q& m& klet credibility-i-j-l 0+ Y# G9 A9 {% F5 U5 N
;;i评价(j对jl的评价)
5 {* P4 M) Q. [+ u2 \# r% D6 {let j 3
# T0 l. \) n. O G$ u+ R' mlet k 49 z- D6 m. J9 u% M4 v' M b% Q- e
while[j < trade-record-one-len]
; e1 o. n$ K6 C+ ^ e% v[- y1 c9 O8 {) U6 J! h u! R$ j# c" F
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
) Y7 l5 h0 L/ w* w9 mset 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)
! E3 f5 |9 d* \, E6 A. {: _set j
+ q" D R% o# \0 N% Q* h5 ]. h @( j + 1)2 C1 m" L# C: h$ W
]! q( C) l1 F) h5 l0 R
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 ))
2 S; Y6 s( R, a# ^* v0 R
4 J+ a; s0 p0 r( B! A
. O2 e0 J# Q2 n8 x. p4 X2 i! L# X1 }let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ y, W, q$ E/ l( q: D;;及时更新i对l的评价质量的评价
8 C$ b. A Y3 Q3 Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 J9 D6 Z, x; D( m Gset l (l + 1)
( J) b* p8 P; E1 {$ e3 z]: M! V2 T0 b$ m, F# {0 q
end! _0 q: [8 b' o! b) g1 I# S
% j. O& e. \, X; ~
to update-credibility-list
: D- X2 T0 K+ L1 D( f ~3 plet i 0
! k4 A3 h' p) ?9 B9 ` [while[i < people]
, R' J2 c' B o* a2 J7 a1 e[2 _7 @* ~6 O* \
let j 0
/ ^: R+ Z1 w0 F6 d& M, e: u& Nlet note 0% l4 {0 L7 G2 @# ~
let k 0+ f; S% k+ Q1 R. x0 P
;;计作出过评价的邻居节点的数目
, H, ], v0 D9 {while[j < people]
. H% I9 Z, Z" V5 \( V$ v5 B5 i[' T7 y9 K5 W2 s: F
if (item j( [credibility] of turtle (i + 1)) != -1)
3 R; e& A! Q$ a7 B5 s7 @, Z;;判断是否给本turtle的评价质量做出过评价的节点
% O% t2 Z; a" h8 \% |5 A7 u[set note (note + item j ([credibility]of turtle (i + 1))); U; N2 Y ^0 V: M8 H
;;*(exp (-(people - 2)))/(people - 2))]
' s. i% q3 a! A. V- T1 m( ?/ r$ Dset k (k + 1)- @0 D9 F% O1 F' F, u
]
! I% p2 F, g1 \% o8 T! Aset j (j + 1)
. Z; n' T# k& Y( D* W% n9 F% a]
$ W/ M8 X8 p0 ?) f9 Q9 Y$ D* O8 s/ nset note (note *(exp (- (1 / k)))/ k)5 i7 @( p& o. I6 z* L
set credibility-list (replace-item i credibility-list note)! Q1 p8 @% q& X L' u6 k) W3 H
set i (i + 1)3 U- j4 J2 g0 W2 W
]' [/ @8 m( A, z6 R, i
end
6 T* Y9 ^, s2 J: w8 E( x8 w& N' O! g8 i& s1 G
to update-global-reputation-list+ z* J6 w' S4 N: v* o# j2 x
let j 0/ L$ `" b9 b+ o4 u; D2 T( w$ l
while[j < people]
8 M7 ^) @+ q7 i' c7 k. ~) C* I3 e[
# {+ L# ?0 a: s$ G6 nlet new 0$ z6 |7 g) M5 W- V) }7 w
;;暂存新的一个全局声誉8 S) k7 }+ b9 X: V
let i 0- M4 t8 Z1 N: o$ Q, L
let sum-money 0, `! H }9 P# U9 k+ T/ L
let credibility-money 0, q% Q2 I5 @: [* B8 n0 ^5 S+ ~
while [i < people]* h4 m4 Q6 Z7 M
[! P4 U/ T% Z8 _: g5 z5 U
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 h3 O# i" ^! H6 v9 F9 g V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) \0 b& Z8 d$ y6 A: Uset i (i + 1)! T/ W" u* B( f1 g: V
]
* J& x" Z9 o8 N7 D, h! [6 Hlet k 0
3 L/ m9 V2 h" w: U8 nlet new1 0+ m; E! P6 G+ H% ~6 E1 h
while [k < people]+ q7 |+ c5 i3 [1 H( ~2 X
[
0 @' t6 [) W( j1 ~3 e6 \7 L: Xset 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)4 ?& R, H+ ?5 s2 q- z) A' @
set k (k + 1): F7 W6 F9 R5 y1 U) o$ A6 z# ^
]
) } b2 \6 {- b6 X, p5 q4 Kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 A( \2 p2 R' g* ~set global-reputation-list (replace-item j global-reputation-list new)9 P1 a- D* t$ f) x3 G% C
set j (j + 1)& z B7 M z! Q* [3 m
]
4 p* }$ X' i& s( Q( b1 V7 p: Lend/ a' W. }. q _" C& F
$ e7 N. i' S% D: E6 W
4 F- ~/ y3 `) b0 b' y
6 m- d; X4 w/ Bto get-color
! W* `) e2 c" A+ k+ l: d+ @( J3 M
set color blue
# g3 t; b `1 J8 T6 S' dend* D% Z9 Q$ L7 D, `9 u' G" f2 ^" k
" c* _) |1 ~% q5 Xto poll-class
& p) e ^2 D2 `4 @% ]/ ], aend
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to setup-plot1, P/ W9 A# }3 e8 w% m/ x
- j% J" N# D& \0 H0 W9 h8 rset-current-plot "Trends-of-Local-reputation"
" @1 S+ a0 m& X, ]) P( {
* Q# Q3 i$ j5 M3 O$ sset-plot-x-range 0 xmax
8 C4 V9 D1 \1 v, r$ z$ Q4 Y/ J; V7 S, L
set-plot-y-range 0.0 ymax
( P d7 l5 x' d( _end
0 n5 V' n6 f- g% ]! Q7 m! R' U
6 Z9 f9 S8 K4 Lto setup-plot27 C3 A; w3 K4 i% b. |
& Z+ R9 J( v" y0 O) tset-current-plot "Trends-of-global-reputation"4 q+ `4 m5 `+ B1 _: P* H3 I
; A, ]/ ?5 p4 e: j) F7 z% nset-plot-x-range 0 xmax
+ k$ I/ G7 p9 s+ J D" k( E: J( `! T% o
set-plot-y-range 0.0 ymax/ n" J% C" a( q
end; n3 p6 I, ]/ F! R* Q$ E- k( t
7 w8 z7 `5 B; A q; A
to setup-plot3
: F5 s% x. C4 z# {" q9 n; z0 Y4 q6 Y% M( V0 I$ y
set-current-plot "Trends-of-credibility"
% E" ~) i S N# Y, n1 h
' }5 g$ _& N# \/ h: xset-plot-x-range 0 xmax% K, D4 X" |, K; X9 o7 J
& Z, J' D9 D9 R Tset-plot-y-range 0.0 ymax% y/ [+ a, P/ U9 E
end
/ V8 i+ x# F9 Q" y
( B+ ]* P& O9 q7 Xto do-plots
1 d4 g5 b# z2 [+ z% d* b2 l8 Nset-current-plot "Trends-of-Local-reputation"
: G- I! k6 H/ q2 P7 V1 W5 r, Tset-current-plot-pen "Honest service"2 b2 ]9 K: n: [& |" l, c3 l
end
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2 m0 k3 L7 T, p' Z2 m) r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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