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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1 a' G& U: _6 ?2 B5 L1 J; I
globals[$ R4 s( Q: w2 |
xmax/ R6 b6 m. y. e7 g, U
ymax o$ [& B- i5 H' Z' y
global-reputation-list
. m# k" V; I7 r/ V/ C4 Q2 O% I+ t
3 v; ~$ f2 e R; q, U;;每一个turtle的全局声誉都存在此LIST中
9 c! K" x' k* z% N/ t% U Ecredibility-list8 {+ X5 l# E; |- n
;;每一个turtle的评价可信度
8 D2 q7 W6 F9 c. F% `1 Ehonest-service8 a' x) p8 {1 ?( g
unhonest-service9 f) ^5 g n) e% ]1 z
oscillation
# f9 ?1 _9 W$ `rand-dynamic
! d: ?. x: v1 v% [5 e5 j! `! ?. ]]8 O! ]( {) x, p* g& ^" U4 _
' e0 ~% W1 o$ | Z; Tturtles-own[
- Y; V6 I; B/ ?8 X" d: qtrade-record-all
% g- T& h! B# ?3 v; E;;a list of lists,由trade-record-one组成/ E1 {, {! `7 b" u6 `
trade-record-one
{' h' d4 @: G4 c! S4 h;;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/ V2 D3 m* R3 T4 \4 J W. M
% S8 c) i6 A6 l8 g# }
;;[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]]3 V( g0 n( c! S
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]
+ X% ~& q9 [8 M& T' N W+ ucredibility-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% M4 N1 U1 s/ Z) i
neighbor-total& l4 L2 [" k: Z7 f/ b1 B! `
;;记录该turtle的邻居节点的数目
& P+ L( F1 n9 d6 a7 t1 @+ Y1 ttrade-time' t q. g4 j+ f( p! f: _5 a9 l
;;当前发生交易的turtle的交易时间# N4 `) v6 z2 N7 ^8 T* Z
appraise-give
8 d9 @% S! P; }) g( T;;当前发生交易时给出的评价
0 V2 Y+ B+ v# q# tappraise-receive
2 U! Y9 d1 ^+ P; X* b4 W3 I;;当前发生交易时收到的评价
' @/ Q. C$ u; d& H B: Happraise-time
/ j/ G0 ^, b# E;;当前发生交易时的评价时间
+ q1 m, c& ^5 j/ t5 Llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
* M0 U1 W, r; m4 J2 etrade-times-total0 g# W* ]$ j" I5 N7 Q. B
;;与当前turtle的交易总次数% Y; i3 p6 x" _9 V0 d" j' Y
trade-money-total
0 }8 f, O k1 e5 l1 m;;与当前turtle的交易总金额
% f) K9 C% [ [9 y4 {! Q/ P# Elocal-reputation
' N# W/ y! `5 W- L4 qglobal-reputation& q; ~" E r w+ |$ V; g4 q/ v
credibility
0 Y; W) Z; \: `' C' X;;评价可信度,每次交易后都需要更新
2 A& u$ S- a: l9 n0 I. ecredibility-all# u; [1 p% _; ?" q+ H/ 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3 ^6 s4 w" O7 A4 b8 |: u- R) A# T/ d
. c0 j6 C' B' G; D* H0 Y$ W. c4 ?;;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# u# @& \7 J/ W
credibility-one' Y9 Z) W7 E7 t9 M. a1 C4 X
;;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
5 E9 ~& a, K: Rglobal-proportion- t' b; G6 ]; T) @7 X
customer
7 K5 j5 k/ P9 _% e; ncustomer-no3 e. q' o0 L( h, n: V
trust-ok
) u+ }0 ^! e' ? J) Ntrade-record-one-len;;trade-record-one的长度
' j" I4 A' v1 b9 ~]
: y/ W& {7 ], Y* w! K3 d, Q' D8 [% G* K' o
;;setup procedure
+ a% \% U, K; t' [; U' q3 w" G4 G% b! f) p. m! u, q* U
to setup
9 \9 N! d9 h2 \& ~+ t( r) K l
) f4 I6 @. H. n8 e jca
+ C1 r4 t% D8 ^7 R2 t8 Z; X! n4 j3 r# J8 ]) E' X
initialize-settings$ ~( R9 ]! o8 M$ q$ G
2 I( P: H6 x& j3 i" Ucrt people [setup-turtles]$ x0 z/ I( Q( Q9 Z) [
: K) M; t! E: x% k, vreset-timer; }, S3 g. o z8 y1 L
& |* M9 X- q6 d3 V( e
poll-class
9 G* G# u0 ?) d7 d% i- W4 r$ P% J9 R! `) U
setup-plots
! G7 b: h4 A2 a% z7 s
8 _- n" H% w; |7 r! Rdo-plots# {, v4 |! k1 m
end
+ z, q. H3 o; k( T8 P, p! w: a: X
to initialize-settings
' L" H8 @# f9 [$ Y- J& ?, C
" N9 s$ J* s! @7 I: Cset global-reputation-list []
7 ? f# x! ?' O6 f! G
4 k1 j6 K F. r, a) pset credibility-list n-values people [0.5]: M5 }* k9 U( V& N
w6 M2 y0 s$ _5 R# s" dset honest-service 0% J/ ^) b1 s1 k" g9 T: W
, D. G ~6 u0 ?: h0 Zset unhonest-service 0
* i+ I% w8 X; ~' b. w3 G+ @' {5 [$ Z. w2 p! ~" X! o% T' g' I/ S
set oscillation 0
8 k$ K2 D) ]# ^! ~) @& s. q; D0 M" e' X
set rand-dynamic 0
6 x6 Q4 ]1 ?0 [end
0 b" F; [+ G h( u- ]
: u; c* }* m) Y% j3 K4 Rto setup-turtles ) l! p5 ^- F) d2 O5 O8 n. O
set shape "person"' _" ^/ d( n4 A1 M# B0 W( e& k
setxy random-xcor random-ycor" C. ?* C" H D8 W' I* R8 A6 {
set trade-record-one []
0 ^( e6 J* y' E* `- Q: t1 A! K
$ v# z. E7 g% @! S6 ~5 \set trade-record-all n-values people [(list (? + 1) 0 0)] 6 M6 T: \4 g; H g) @! r+ z0 ~
% X3 _9 p. \/ W4 {0 y( d1 _
set trade-record-current []
4 ?4 U& {9 z. f8 h1 i( }$ ~; Hset credibility-receive []4 z# Q; @$ p5 U" f; b
set local-reputation 0.51 \" k/ z; p) ~
set neighbor-total 0& b. r( R$ Q0 t N- l6 z
set trade-times-total 0' R$ }. p0 X9 v
set trade-money-total 0, s1 n+ n4 X5 T2 D
set customer nobody
. g1 i. L3 n" o, b( [set credibility-all n-values people [creat-credibility]
- k5 f: {+ X; ~7 r$ j p, {set credibility n-values people [-1]
; ~, A/ \) o4 }1 v* k0 e6 Bget-color
4 m; L, i- o3 W6 r
# c: Q4 d' G. m. r; Cend
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to-report creat-credibility
! n; q5 s( Q4 E6 Freport n-values people [0.5]7 e( i" R, h8 @
end
/ i) _0 a J$ U
" c. ~ _: [/ S8 o0 Uto setup-plots
( V! L P- k/ ~
+ K# I( }: J$ b, y2 H: X! E; rset xmax 309 B+ L& R2 n6 Y6 F8 h1 ~4 {
& {) C- Q: |" t9 L# x! iset ymax 1.0
, F- _0 V; \5 l6 |! f
% W( _% a0 V" n% K0 }! N* x/ C1 Kclear-all-plots8 h" }9 d. E+ X/ f! J
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setup-plot16 ?0 m7 H: Y0 J* ]( \* N g
6 L, G( v7 c* v8 J& v' [' _/ J% ~setup-plot2( O- a/ y; m2 C/ B0 ?" K
& _ F. y0 I9 H1 X: g( ?
setup-plot3
9 p6 o1 M5 @, ?* mend1 Y" M7 E& U, Q% G
* p) N, T$ {) F. x) c- Q, x# l
;;run time procedures
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to go* m0 F1 ]1 n4 f
q0 K9 Q8 s. Z+ \* Gask turtles [do-business]
[# q2 M$ ?5 [' C$ `$ I5 F& \end& z7 s2 h1 C& f7 {
4 ?5 c9 r( \0 v( Z6 ?to do-business . x, f6 [( P9 u- V0 @6 R. E: @
1 T2 `% B/ i7 v2 `; ?
( f( x& G \$ q. P
rt random 360
3 S! S" }+ J" x6 `& q1 z
5 N# E$ F8 C) |fd 19 S; I& X( E( E. _8 n: i! B3 g* R
4 A w3 G' ^7 l, ^9 S& iifelse(other turtles-here != nobody)[2 r& i. R. D# k! c; I
* b6 ~4 S- w; z# G c6 k! b4 i
set customer one-of other turtles-here3 y v( m$ N0 K; I$ d
( ^' S$ G2 x9 K( Y! ?6 P;; set [customer] of customer myself/ m+ d2 m+ F4 d, t5 H
7 s! L9 p9 r# ^
set [trade-record-one] of self item (([who] of customer) - 1)& b* |1 G7 K+ Y' @, @; f1 X
[trade-record-all]of self, I8 q8 r3 ?( k% D) c
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ D$ E Z6 V' B6 C3 `3 H4 T! q/ n% r! o0 F8 i1 I
set [trade-record-one] of customer item (([who] of self) - 1)$ {. J+ W2 ]/ r% ]1 b( h$ K
[trade-record-all]of customer
* f- @5 T/ M' R9 q8 t7 ^, b S8 a$ g' F! Y9 T# f
set [trade-record-one-len] of self length [trade-record-one] of self9 z" P/ l! _! e' P) m! s1 q
; w) [; `# E- `% C/ f5 I
set trade-record-current( list (timer) (random money-upper-limit)) G% l" A5 p- L
' @( v, t% T4 y# f* eask self [do-trust]9 t+ t# Z) H4 [
;;先求i对j的信任度& ~; d+ B' ]4 x: Y+ f
2 w& _6 }; P8 D
if ([trust-ok] of self)
4 r; _1 L# A/ M$ q; j;;根据i对j的信任度来决定是否与j进行交易[
$ I/ ]/ A6 m0 Q& t' ~$ Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ ^$ z# S/ w) S0 }: ]: |' h! A
: R. o5 \( u4 p. ^7 m' m6 d4 k[5 I% l; L* t, L% b7 W5 t7 ^0 w/ V Q
, C* T2 \+ ]/ N* I3 M, D& S! \do-trade
7 }& p; A9 s( s2 N7 [1 Y# h, \
) m/ K5 Y) q+ f& w, ?6 ?update-credibility-ijl& K' f2 V; T7 q- `, Y) O
, W+ W b* S6 y$ K/ f: pupdate-credibility-list
& e6 V5 X( E: d, a/ g" E7 ?& d
$ A$ g/ s: M0 Z. H2 l8 s
: n) d; x% b/ Y8 Iupdate-global-reputation-list
: @9 Q8 k, L8 p3 \+ D: z2 J0 m$ y9 G5 ~5 o0 a
poll-class- t- a. _2 m* X0 Y( |: o
( L' K4 |$ h% U0 S5 }: g- zget-color% e R7 Q; U) L! @5 L5 z9 ]
$ k+ ^8 j& r6 [7 A. ^; `! E]]
) B# T3 y. h% x* `/ K
+ z7 M u7 ~8 Q6 {0 n+ H7 v;;如果所得的信任度满足条件,则进行交易
3 ?+ u8 g \) {# H
- w3 B+ Q/ y! N[
: d. D; }4 M8 h. E
5 `: }; s" z/ z/ Z- i0 p7 Krt random 360* o; J5 i) b, s) ~& R7 g
3 s. c3 W) c$ Qfd 1( v- S0 K3 z5 D+ @& [
, G1 N6 z" t3 K- n) d) r. c]/ J6 p( P% S- J2 {1 Z2 ^
: m" J R3 l; v0 ^
end
. t/ E6 T' d7 X: S5 X( `' `( V, w3 D2 _; O5 r$ i2 t, R
to do-trust
9 `+ w3 J; T) l8 F/ l( L( tset trust-ok False
. Q5 l$ W$ P, a4 B6 k# Y- E6 @3 v! b
2 Z( f, K7 I. U3 a: E& g0 X$ k Y7 g: S4 E N& L
let max-trade-times 0% V1 {+ I( D8 S2 Q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ a: f7 ^. v& L$ J8 @& Ylet max-trade-money 0
0 i8 @% i5 I. Q6 m n! Wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 u& n( C- \6 P0 olet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' z. U4 V3 U( ]& i0 D7 K' k
' v0 O, U% {1 ]
) S8 _* Y& b- C6 }! f% Q- @get-global-proportion
1 G4 O0 o+ F/ k' N9 f: dlet trust-value
! n+ \. ~' w- F0 E- w- j# W4 ^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)
9 u! X( u6 G! p8 Y8 qif(trust-value > trade-trust-value)
# D7 f1 z+ f+ d( Y[set trust-ok true]
) T i7 r3 }& i7 G6 A' ?! Jend- B; E z4 T' y+ ^+ Q( c
8 ]4 R7 b* S: z! f F6 Z& V
to get-global-proportion
2 t/ `% V+ V3 qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 {4 I* J# _" x: m0 }
[set global-proportion 0] s3 [' D' o2 p( q5 N+ C# `
[let i 0
3 U& m$ j# g1 ~let sum-money 0" y. i$ k+ Q5 k/ |# @
while[ i < people], l w/ V9 [+ K7 _
[
% I, [+ R9 ^* g0 w" Dif( length (item i
( I: ^ e4 G M f9 |[trade-record-all] of customer) > 3 )
- U& D$ A8 j3 J7 l2 ?# b[
( L1 {0 w0 |9 oset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: Q. J5 Z) \' h$ ~]: `- ~* X+ ]9 N3 r
]
& h4 N+ E N# R- w" U9 M1 zlet j 0
& Z) T9 K7 v) a9 `% l9 T. elet note 0, \- ?" u \, c& ?
while[ j < people]
* m3 W$ g2 G0 r: q$ F8 v# W) O[6 ~% [) g5 H6 A
if( length (item i
H0 P2 i1 D! M e. X1 ]8 S- k% M[trade-record-all] of customer) > 3 )' ~% v% B# {! M4 H
[' n' z; s; q; G2 w( A
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% Y0 u& a/ G% |: R: Y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! y% }3 e5 t% Q$ C+ Z- e) K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. |* @1 M, j/ {
]
" h8 L, l. @9 _/ @; v1 ~]: V N# e6 ^, o
set global-proportion note
! Z& q0 c" r6 Q) u! G' Y]9 N$ y5 Z9 z8 z" y& f9 B8 R* O& o7 s
end7 X2 [- k+ ` B8 D
+ F2 _; @! J! T# E% P- j/ p7 @to do-trade1 r1 F5 G- s7 u3 }: C6 ^6 `/ X
;;这个过程实际上是给双方作出评价的过程
! j. a5 ~4 O6 |% D9 l, x4 [% @set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
I) p$ W% \- H4 ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. [: Q/ k) C- q$ N6 z& I
set trade-record-current lput(timer) trade-record-current& j* U0 j" ^5 E
;;评价时间- G" k* f& b7 j5 A
ask myself [
c L+ `% f' W5 E' c, \update-local-reputation, z1 f! x. i" [9 Z$ ^) l! d
set trade-record-current lput([local-reputation] of myself) trade-record-current# `$ u; ]# n$ v( a; y6 n
]
. m: _' l( N# dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ O% v. W5 q8 m& f;;将此次交易的记录加入到trade-record-one中
$ I: R4 U% }! g3 Tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) g6 S4 y! w$ a) b8 N9 F% {' _
let note (item 2 trade-record-current )
: `7 x, B& g) N7 lset trade-record-current5 D( |; f; L/ D6 E3 m( P5 R& @
(replace-item 2 trade-record-current (item 3 trade-record-current))
1 }' W# O5 }1 t7 O+ ~set trade-record-current
! H2 t4 @6 F4 R3 x k(replace-item 3 trade-record-current note), x' F" ] X: d, x( y4 |% N9 W
/ @; k- y8 U. G7 n- U' w# B0 k# ]! r% M
ask customer [
' q3 M, } S# L- e$ u6 x6 H& zupdate-local-reputation
6 ]0 Q( F" I$ x1 R3 Z/ sset trade-record-current
; v# i: d9 Z. M' l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 j1 R+ u7 e( I s5 s% I
]
7 N% ` i, U5 G* X7 n D% R) K) h5 [8 @0 F$ R& P6 k
- ? t4 V5 u% v% b* \$ ^% n+ \) y' b4 kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: T7 e, P& ?# @* U9 O Y
4 U7 D; P( M+ M7 \set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& a5 t! r) J3 w+ K4 G, m$ c' z; o;;将此次交易的记录加入到customer的trade-record-all中, p _2 n( [2 L
end
# y: M% V& M/ L& |% I
& v/ U3 | F* m9 Y9 P. L0 ito update-local-reputation, \, `3 k) T6 U/ Y$ }
set [trade-record-one-len] of myself length [trade-record-one] of myself9 F% a G7 x5 }
6 ^" g0 f- s I I" y
) L: R" {6 T' t8 Q/ W/ c;;if [trade-record-one-len] of myself > 3 ; g% K3 l4 r- L0 L
update-neighbor-total
% c0 |2 s6 v0 B$ [$ ~;;更新邻居节点的数目,在此进行+ E! X# R d5 v4 \3 K) L" m
let i 3+ L1 i5 d2 J; a& B K
let sum-time 0) L) o5 s7 e9 ]0 L/ a
while[i < [trade-record-one-len] of myself]" ?. H# |& n: g5 C
[
" h, Y6 w: a( i6 hset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* j, Z6 j, r- T2 A0 F, zset i7 \- ^, W% Q k4 X; {
( i + 1)
5 }1 A5 k- ]: z, M" `; n% O]/ E8 l) I+ ]* }4 c- w6 g0 f
let j 3* ]. G8 l: k4 N* y9 L4 b
let sum-money 0
# r* `4 \% O1 E# K7 \: b Z/ ~8 wwhile[j < [trade-record-one-len] of myself]3 ]0 u( I- j4 `$ C# A* O
[, W, t1 C! O7 C0 y' Z9 L) v- a
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)
9 N% u. U2 M/ @) C# n, W0 E O7 y$ F% bset j k. c9 e Z0 j4 t
( j + 1)
, {1 c; z/ I( U]
8 Y& @" |9 Q8 p, _: llet k 3- _# \8 Q" z& W
let power 0
$ t+ T7 t! q5 k- l' `let local 04 e3 g- W$ A4 {5 O k5 X# N. N, [
while [k <[trade-record-one-len] of myself]0 } T9 [3 B. _/ t: ~! U
[
" t1 u9 T# c: Y* [" Z5 z- bset 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)
- n" y9 K+ W: J9 p) `set k (k + 1)
7 s" v) K. \! [! j* E# K( X]1 v# z8 l& z% s2 C0 a
set [local-reputation] of myself (local)2 Z! v& G4 L9 Y' c# ?
end
7 H/ M/ g; t. B6 I
9 c0 |! F/ ?1 G. @% p' Sto update-neighbor-total. I }5 m; ]/ S: h1 S
) Y% ]) @( j# o9 @' b! jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 e& @: d' k$ ]" z2 S
; ], F6 @9 n" V6 t$ N7 p* f, I" z/ V7 `+ t4 x
end
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to update-credibility-ijl : S& R3 a, S1 P6 t% m' O% q! }: h
2 E% O0 |7 e& T4 R: D;;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。) B1 @$ H* s# ^7 l4 x& v
let l 06 d8 g7 E2 J, @
while[ l < people ]
0 K: o2 K: f3 c Y0 F& \1 K% 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2 M+ m6 T8 A/ z7 _" v
[2 z' K _$ J9 k
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* U6 |3 p" `9 D" j
if (trade-record-one-j-l-len > 3)
7 H# t# z8 \0 i$ b" t; ?[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
) i2 R8 Y7 ~3 v7 K$ a8 S6 nlet i 3
! c: N: j( S% h& V" ?let sum-time 0
# y2 B7 e j& H$ @, H J& m8 Uwhile[i < trade-record-one-len]7 R4 T+ x1 A7 z& g
[. v: E/ w& P" E1 G
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- n6 }. x% D. w
set i. u- B( L( H8 h$ ?; n' v$ g) S
( i + 1)' s( Z6 h; l$ D) u0 \
]
8 c- K9 c2 t1 |1 K* D. wlet credibility-i-j-l 0
# s( q4 K% @6 _( T# z7 k+ n;;i评价(j对jl的评价)$ e$ n$ t/ }; Z
let j 3
& b/ O) m) o6 N2 X9 g `let k 4
" Z; B3 i, H5 j0 n. b: w7 |, P: t: ewhile[j < trade-record-one-len]
6 I3 s* Y4 z( D3 V$ k8 U8 q8 r[! e3 H3 |) @2 r" c7 v+ B; d
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/ n3 { m! o% ]/ S* W/ d6 I' q! H. C$ 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)
q& R1 v4 P$ q7 d" W# o$ \. Qset j
6 X s/ P3 C) }& r( j + 1)4 ~1 q/ m' z: T+ m$ y0 K
]$ a! A- H! ~' C
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 ))
4 g8 K$ I# w& o. z+ {+ m3 }. N' a b9 T' [) H2 U1 s
* p& l1 q( F9 o' ?4 Q7 f9 }
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 E' F1 r. v2 U- y
;;及时更新i对l的评价质量的评价
7 f% ?, J3 ]6 y* p gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- {# k3 ], w1 T0 e
set l (l + 1)
I" [% u- K0 j/ a$ \& C! e]9 P4 ]4 j8 f, T7 I
end) R5 B$ y% V3 Y+ p% ^& X
$ Q4 _) J5 y P* z3 `/ m3 G
to update-credibility-list
3 B4 b* a" q& y2 }let i 0
# n5 A$ K+ l6 n+ ^while[i < people]; ~0 m$ T ~( Q0 r3 w5 A
[
. T; a7 D& D. ^+ O A3 \! Zlet j 0; E, F7 K5 }5 w' o) O9 o
let note 0
* n9 T. }, Y6 t, Slet k 0
/ b8 j+ {- r8 Z4 F;;计作出过评价的邻居节点的数目
, Q9 ?/ D% ? g+ u0 Y. Fwhile[j < people]2 I& o1 K; J7 b6 }
[
" Z7 n+ J7 d6 m4 {% _# {) Iif (item j( [credibility] of turtle (i + 1)) != -1)3 u9 ~) J# g# @' Y+ {: b8 E5 `/ n
;;判断是否给本turtle的评价质量做出过评价的节点; l6 |" g+ X" j
[set note (note + item j ([credibility]of turtle (i + 1)))
# {8 d4 \5 M" H, v;;*(exp (-(people - 2)))/(people - 2))]# D7 R, l4 A6 G( z4 l2 O4 u" ~, U
set k (k + 1)) D. I. P* W2 I
]' j) z# a* w9 G$ g1 K5 e2 Y
set j (j + 1)
! C# g- M3 m, I6 S) u( O) m]
7 d& A* C j; u# G% x+ O& Bset note (note *(exp (- (1 / k)))/ k)
2 h: t5 s6 K% u5 f0 t+ Qset credibility-list (replace-item i credibility-list note)
9 T4 _$ u' Z! t8 ^7 N9 @6 o8 mset i (i + 1)+ j$ B. u' ?* x* @! b
]
9 s" w9 t: l3 H2 X0 w1 m. Oend9 \8 ~4 T8 E9 ~
4 z. t$ V3 F) V7 u' a
to update-global-reputation-list' x4 Y2 B' _ {0 a) Y0 Z% Y
let j 09 l. @! ?% g1 H
while[j < people]; i- ?; e ?; P3 Z5 h
[
) m; u. \- p" E* |7 Qlet new 0, `0 [+ a! |6 e2 K |2 J
;;暂存新的一个全局声誉6 w$ p4 S' m9 {4 a. S. b; a
let i 0
9 @# \7 K; D9 h" f; a6 S: Llet sum-money 04 w& y+ v% I2 O8 ~
let credibility-money 0
+ B3 m; P4 \6 c$ G1 `3 t4 hwhile [i < people]
6 k! P. } `8 L[& ]! e* C2 L" b: K# P- Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( E3 ~; T) k, U4 k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ X, O. j5 B* v9 @3 I+ y; B
set i (i + 1)
% C0 `# @+ w6 t8 o/ j8 Q8 X7 v]; g$ ?! _& b g4 s9 T
let k 0
3 D, G* I$ k, y& `% blet new1 0
5 R& o8 A+ ?7 x4 `$ dwhile [k < people]9 c1 G% S; C0 G# k2 H- c
[
" ?& X- E6 a# ~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)
$ e3 D! w, e) O: @set k (k + 1)
k8 f6 r/ K: o]6 y, _+ `1 Z$ ^' _3 w. U
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 p+ `' V$ a- T3 C
set global-reputation-list (replace-item j global-reputation-list new): H$ ?2 S4 I& _4 q
set j (j + 1)
6 p6 ~: g+ Z% s* j]& B' L5 y0 v6 ^! u1 u+ U. ^/ O/ K
end
: N# ~$ G5 t" l6 V
- t5 b3 h. e* Y* A, U
7 R1 |+ r. M: U, J% ~
8 f* I5 [: p6 \# P. U0 Bto get-color
: [$ F; j a8 F6 C0 X. E/ v, H) j1 v
set color blue) u7 z$ D5 n3 U5 f
end
9 Y6 K4 b- @# x% Q5 y
" ~4 i7 Y, @ {" s7 Sto poll-class% z) \! I4 C- {& w
end
5 n/ p6 e1 k* c w
% S/ ^2 j7 \4 j8 K4 ?6 H# g" D# Eto setup-plot16 U+ I! U% P3 y3 d4 V7 r
4 @% Q! K* ~6 i; l8 o+ k6 Zset-current-plot "Trends-of-Local-reputation"
5 Q- F! C1 X0 W0 c6 u' H! `
1 @ x: h( L) f$ }set-plot-x-range 0 xmax
3 [6 {% i3 t" i0 _4 j9 `7 b. ?: K2 G: m4 ]0 c" {: s3 X
set-plot-y-range 0.0 ymax) L1 S% x6 U4 P3 v6 O( C% _! S
end/ r5 }+ `6 Z/ N9 j# L) A
9 r6 G8 e5 h8 {+ Q+ Jto setup-plot2
; u8 G; p. y" |, G
& o, m$ m0 |/ H) N) `set-current-plot "Trends-of-global-reputation"
, W( w- ^% V" }2 j( {0 G/ P0 \
9 c/ g3 p9 l* g0 O2 a3 Uset-plot-x-range 0 xmax9 Q# h5 L5 e( L' o7 A& H- Q0 ~
1 m5 c4 V" b- G+ [' |" k
set-plot-y-range 0.0 ymax" N* [+ G/ q# @
end& w/ t' Z9 Y* H; A! B8 z/ v" D
! U/ B2 ]! Y+ o0 j/ i+ ?4 M1 o
to setup-plot30 m/ Q1 W1 \% D# {' _
) }+ h# t1 ^* F* N2 Mset-current-plot "Trends-of-credibility"
2 }& h5 Z5 [9 F0 |! @: ~2 _
) {2 [" E* @2 d2 nset-plot-x-range 0 xmax
3 k, x$ u' ~# ^# N' y0 L, n+ s; w& v
m& w% H6 x8 V, ?( t' `7 Rset-plot-y-range 0.0 ymax! ]6 W! X# u. s& o. G9 j5 |: Q6 V
end+ a' ^6 b! F. n) ]
: o8 \" K( t0 Y! s1 @ ]to do-plots& u3 Q! I& E; U" k7 v: v, ]0 \
set-current-plot "Trends-of-Local-reputation"% Z: m i* ^* q3 j) u
set-current-plot-pen "Honest service"% S/ O! x3 T. K7 P
end
% t# t1 z) o/ K# k* C& ^! w( Z
- B) D$ Q6 v, L: q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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