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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' v9 ~( k$ R/ A
globals[+ i' k$ U$ \ O
xmax
7 z/ W2 K7 h: H6 c" Symax
1 d( [; K9 Z' p" u$ _- c! vglobal-reputation-list
& A5 T* ?+ {; \; V7 I' {$ A/ e1 I. C5 P
;;每一个turtle的全局声誉都存在此LIST中 t. M+ b N) ]9 b7 x9 b& j+ y ^! O
credibility-list
) V2 g9 K6 P s& d;;每一个turtle的评价可信度3 C/ ?9 L8 w8 J4 X9 e
honest-service+ @3 m8 v8 r5 k/ @ j6 i9 Y
unhonest-service
; a9 S6 w0 O% M- Noscillation8 l% X, ^9 L. U" F6 b
rand-dynamic$ D* _* e& E6 z- a1 I9 L
]; w% S" ^# `2 t2 P2 `
6 D1 i1 B# f8 Qturtles-own[2 U: g) @1 N) ?: p
trade-record-all
' [: g1 X* A" r. U M: b1 p;;a list of lists,由trade-record-one组成
3 ]0 a! a* i, b: ~1 K, m4 Mtrade-record-one2 _$ }. b, ?; Y+ m5 t/ P, c3 K) ~( z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- |, }' d' c& [/ g1 B0 Z6 t4 V8 {: n8 I' B; C* ~. k5 ?
;;[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]]
# p+ d5 t1 U6 Q; p. A8 t( K% m3 xtrade-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]' Q5 c% t5 U" D' {
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
9 i D, P: ~8 i- ?& ]neighbor-total
Q! h0 M- c5 {4 l* n/ Q;;记录该turtle的邻居节点的数目* k0 _/ _# t, o
trade-time& T1 y% J3 O8 K! n( k
;;当前发生交易的turtle的交易时间
- s$ N/ z- K- v# iappraise-give
$ N( A! N f$ \% k: V;;当前发生交易时给出的评价
9 ]: p/ m f0 x1 l/ U6 m) q1 g$ } p& Gappraise-receive
- I- V6 q+ b( u; l! ~$ { i;;当前发生交易时收到的评价
/ n$ r4 E: w# b* R0 d& u. bappraise-time
$ Y0 \" B4 l' w+ A7 [9 V;;当前发生交易时的评价时间+ Y4 U- }: K6 {6 N. X0 @5 e
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 u% q9 M8 n# v V) {) Wtrade-times-total/ b V4 T* o- M
;;与当前turtle的交易总次数
/ }7 ^ r+ x3 _# B9 e, ftrade-money-total [: n/ [1 z/ t) q
;;与当前turtle的交易总金额, _0 v6 ]* F0 w# T( y$ o; O6 t% u
local-reputation* ]( K! X q- y
global-reputation6 T3 K2 H) j7 s a+ R
credibility4 n ~7 b6 B+ D d9 ?6 g) ~$ l: e
;;评价可信度,每次交易后都需要更新
1 p, v/ S2 q h) S$ p* `# Ucredibility-all
3 R6 d% @& b+ }0 }2 r;;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
. M1 _( I J+ ^. t7 U7 x; f/ b2 [1 S/ Y# ?+ X& U% p& @
;;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 G$ C; I* C+ W: |0 E9 J
credibility-one
) `& d6 ~* k6 _+ E; e! |+ U;;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
3 M* A$ R1 {: H7 o8 vglobal-proportion) V3 T1 z0 v6 ]1 e
customer
$ ? o9 F- U" n+ L- n" Tcustomer-no* O% A# Q' c& i3 e
trust-ok
. o. t1 p7 o9 s L/ b/ F; Mtrade-record-one-len;;trade-record-one的长度$ m ^0 w. E% j
]
8 U, d1 j+ u$ ?! W' S
: C" _) ~- J; N& c0 ]; \2 n5 M;;setup procedure
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9 d' C- Y( o' Z7 q; p0 c; Hto setup) O; M6 P+ v+ X4 K
/ [: a6 A+ D. V; [" I* b& ~
ca
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initialize-settings) z- Z5 x& x7 |1 F1 m5 t% V) c
3 q# G8 h2 {/ @! h0 i8 w5 e" f2 _% V
crt people [setup-turtles]- X) x" G1 o/ B- l& w8 [4 i+ s
4 @$ S, B4 z3 Freset-timer
) T5 |6 q9 t) a- Z3 A- T/ ]; ?5 U( h/ _! z3 V; m/ W
poll-class! M/ V& P- |# L7 g* ^
6 V% B- _: i* _& c. j7 r3 Psetup-plots
8 |* j' E' _, V( J/ O* ^- _0 F9 ~8 T% R6 [7 C! j- t3 Z
do-plots; b6 Z2 g! j9 Q o/ j% h/ r
end1 d0 }, N' x/ I# X
2 }) i4 s3 ?" i8 f& H& wto initialize-settings% c5 J5 Y9 U6 |
' w4 C6 a# Q5 G+ p5 u1 T/ C6 u7 cset global-reputation-list []
+ ~& T' A% t. F( V% d# j9 g! ]) N8 v$ F8 g: }4 E9 B+ ` t. {
set credibility-list n-values people [0.5]& }- a; k( @9 C% o" E
# n, ~( e: a8 E' r) C
set honest-service 0
" j# O/ m6 J. n% z! V! ^- k/ @: W" l& j9 N8 @4 v' H
set unhonest-service 0
1 B$ _' t' c/ L! q* \% I$ u
4 G) w S0 M! B2 sset oscillation 03 v3 s9 V4 d0 r& O
2 ]& u: i8 U$ }* r, r3 |
set rand-dynamic 05 v2 g2 A/ L/ B5 z3 |) v
end0 e$ w+ w5 z0 S, A6 H
: }2 |, y- `$ c, s1 V
to setup-turtles
1 y3 y, b9 @# A; [4 rset shape "person"
3 ?5 N' r: h+ K% ]/ ksetxy random-xcor random-ycor
: ^/ M5 `9 J# N$ A4 bset trade-record-one []* _! }- f8 j4 ?/ D' g* ]
+ B2 Z2 ^' x. [! R6 k
set trade-record-all n-values people [(list (? + 1) 0 0)]
( ]8 S' m0 K: S4 p7 p& N3 I( H+ u+ R2 J" T! B c
set trade-record-current []
1 y' p$ ~6 \. r# | t0 Z% U2 ]set credibility-receive [] q2 ?2 d% N- ^
set local-reputation 0.51 V' _- j; g: F0 A
set neighbor-total 0 F5 Y: Y( ]9 J! z
set trade-times-total 0
; w: G5 U& o& Y: h* U6 Cset trade-money-total 0
% Q: R( i% j, D) y" P% C9 H5 Jset customer nobody
0 I5 t3 O( g1 }$ e9 J4 T6 \set credibility-all n-values people [creat-credibility]
6 t! a3 S2 ~$ ?set credibility n-values people [-1]
" P; C* z7 p9 rget-color
3 D- p, ^ J2 x1 e0 }+ t2 ]
" O2 I. B% o9 ]; g1 x0 wend" C* c* _, X, ^4 v3 m
- W, ~% [3 i2 P. k4 F+ P4 oto-report creat-credibility% x2 R( M" L; A$ R4 Y& u
report n-values people [0.5]; v; e' a; \0 I' |3 Z$ i- u
end
! c: m6 ]; z; @9 y: I; e4 x+ k$ Q+ Y$ I
to setup-plots# W( M; F5 l" g; R: c% n
$ g: _9 q+ T- X- J
set xmax 30
" d$ n1 W: U, \! f# M! |( V2 n; q/ D3 Q
set ymax 1.0, A5 k. O6 ]/ @, ?6 Y9 U6 B: h
! x' l4 w3 F* G( @" e zclear-all-plots3 U) C( v6 v- F; V* Z+ Z$ F
0 e- l; ]2 H* e5 d& i$ a, X
setup-plot18 v% p3 Z2 O! q
$ ?! g- t# C5 I+ Ssetup-plot2
. \5 t8 ], M: ~! J' Z& n/ Y& u1 t3 I
setup-plot3( M8 M7 N: k: o- J2 \1 k( k6 j! u
end# m) T% L- ]* |5 m% _7 k I
6 l* s2 n7 [. z7 };;run time procedures- g' ?) {1 n. M6 _2 @1 e0 G) n- x
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to go. i: H. Y2 X# t4 A% ]# B
. f$ t% E! a, p7 i& l0 ~5 W7 ^
ask turtles [do-business]3 X) o# R! x x3 R& G" k# r
end
, E0 ?- _! O; b' J- U% ~' [) l$ r9 d; Y- r) s! `* t2 C
to do-business 7 M' t) c0 }8 i% C- |4 u( `+ X
. b/ |3 {! u- M) y% m
7 g7 a7 B! B) grt random 360
, a# G9 L6 G- T# Y) v/ h- X; G& \/ L% M! T' V: F& i
fd 1/ T$ U7 l( c9 h {! }
8 T0 g6 ~6 {' n5 Yifelse(other turtles-here != nobody)[
+ q' J8 Y: u( c* D0 r8 k& d0 g z$ u
set customer one-of other turtles-here
0 ` h# U& v; V% u. Y
2 p( }( u N8 t$ J6 _% C;; set [customer] of customer myself; e/ E. a; z! L% ?" E
4 p2 |2 z6 \5 p) tset [trade-record-one] of self item (([who] of customer) - 1)$ a+ ~ L' E" ^; ?! K
[trade-record-all]of self
7 r* p9 ~4 A+ v+ v9 D. M. F' H;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 u$ k- z2 w4 u( L
% d1 l7 o' x( Z5 L3 g2 Oset [trade-record-one] of customer item (([who] of self) - 1): Z8 S3 L" V( U$ O% U
[trade-record-all]of customer" Z# J& l S; C/ H" i+ Q) S
' w8 V# E) |* t) u8 J7 x9 @( ]# H
set [trade-record-one-len] of self length [trade-record-one] of self
8 c6 n. H& o' P6 X6 i' C! E
9 [' \8 w; e, r4 o# N Iset trade-record-current( list (timer) (random money-upper-limit))$ c4 ^ }. j% g+ U" Z4 x7 q0 ]! b1 W! P
\$ L/ I8 f5 jask self [do-trust]3 q2 x6 J9 c3 O" x2 H9 w! ~
;;先求i对j的信任度, v1 u7 v/ S5 Q. |
6 q: {4 y+ Y {+ a- R7 R) Z8 {
if ([trust-ok] of self)
1 l; s' q, r) K) W; h% H;;根据i对j的信任度来决定是否与j进行交易[, a& w6 E) q; }: b
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( k6 _9 L( {$ }: }6 H( [* y
3 r) E( }* t- N- o6 X. @6 J0 v
[. T7 z; r3 l P; e) l
3 F% M+ K' y. d
do-trade
1 w! z! {1 W# i% G. K& z' S* K/ g( U( F: w& w3 C" u- I
update-credibility-ijl
$ f6 y2 T) U0 ]+ H4 ]/ ?* I, a/ T8 t9 h* y+ ^% t
update-credibility-list8 ^0 ~4 I% R% z3 M- @
3 {" J \, }2 U# [0 X3 j5 P/ `+ o" f9 e. ^8 ^
update-global-reputation-list5 B# Y& ^. B; n8 w! i. n( I
5 W" y; L! S& Wpoll-class4 p$ J9 s, S" Q) F
* a d" l1 ?( {" B- O; Sget-color. @" }, a% ~6 s- s, k! K# q
8 q# U! X# N& p5 e4 ]/ h2 b, U
]]& Q" v& t: k0 K7 m3 S( S
% F, R+ g: f1 R$ b; g& G;;如果所得的信任度满足条件,则进行交易
3 j6 C' H/ i3 m7 p, O; |" D9 d7 O) U$ O
[* y! \* q/ j3 z4 v. F: d$ n( S
+ h6 l) w% [0 `! D% P L urt random 3600 b9 O; O' w- u
, h' H2 n$ `. y6 V7 J' k
fd 1 d: p1 x2 z# }( M: n" d
, R# [9 ^1 \5 d& X" v( i. m
]0 `+ J/ E7 m8 [; k4 N
g0 r: |/ S9 P; M) send3 b, n5 n. s) f( |1 W+ N' L) D
7 U" \9 d# Z. V, O W+ |+ H! Eto do-trust r% X8 N2 c$ c4 P8 i
set trust-ok False% W$ o5 p4 }! }2 ^4 v0 N: g0 g" A: z G
( v6 v4 R) M! c7 z! ~8 A" z$ t
6 B9 s5 {) p5 o7 [4 Hlet max-trade-times 0
8 ]+ K2 v! G7 {4 T3 e; jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 O# v% H' b P2 [' W) Y: t% elet max-trade-money 0
& R1 g, X! l' }: g$ tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ w# u! z( U4 }let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)): O: u |. X# N4 ] r' o; ?; v' f. m
9 b9 K- }5 P/ P* U2 N- }
+ g v. c4 j( G2 v# ^: eget-global-proportion8 w1 H4 g: b/ h
let trust-value6 c' k/ I% g! F7 R$ \: M1 ]$ 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 C G3 d/ z4 m1 I# }; Z, h, H w& aif(trust-value > trade-trust-value)
& ]2 M* J/ E' A% V[set trust-ok true]" q- d( N' b& `% m* x6 H
end
$ @. z& X( Q9 W- O9 r1 a/ {! S3 |
# _8 ~# i$ b' x6 tto get-global-proportion2 X) o* }' ` G+ t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) ^9 _( |0 X: I5 x5 h
[set global-proportion 0]
$ }) e5 M* q3 ^* V[let i 0' B5 Y; S+ M2 q$ T& G" t- N0 X4 i/ \
let sum-money 0
K- a7 P% a2 Q/ _7 o) y; h& L; _. awhile[ i < people]
- f! G( B5 j& Q) c& a" ~[$ _4 I0 u3 a# {+ q: Z
if( length (item i
! m2 C6 T7 j: ~( _8 S[trade-record-all] of customer) > 3 ): I$ R8 y+ r; }. @ \% g
[
& v- p& W7 k! w: G7 N8 G8 Q, Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 ]; l% A7 k0 n) S! C4 h- x# R
]( t7 r0 M; H" a2 Q2 Z) {7 p
]
4 R8 V" k9 U) S+ }/ @1 Plet j 0
1 `5 q2 q9 f1 Y' K9 R* Qlet note 0 T& z0 A/ C8 s2 h3 i1 S) h
while[ j < people]
b: n" d) v9 o: ][& E6 I$ A* u. e! b5 r# J" T
if( length (item i
/ J8 h5 J# C2 [[trade-record-all] of customer) > 3 )0 L- a% ?! |0 h: D/ [* F
[3 T9 D, {; U3 e
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); i8 n0 c2 [2 {* f! q& m" N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( U$ Y, m9 l" d c3 A
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 `+ h7 n9 I+ P5 z! V1 h/ z! A
]1 K; r7 u; t5 d7 q* d
]
* X% n& b3 _! ^8 Gset global-proportion note
, U8 c" x+ a2 A* C4 m]* [3 n9 g! n, a- Y) C* l
end, \8 p8 Q6 I! B* }9 b
# Y7 h3 I1 D3 w: Z2 y0 \% Zto do-trade5 D$ |; W; x' ?: ]& K2 |( l
;;这个过程实际上是给双方作出评价的过程
4 b4 b+ L7 j8 N( v0 Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 a3 t8 P: p0 ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 o, a) _) x! K' f; d0 D1 ?" I% b3 G
set trade-record-current lput(timer) trade-record-current. |0 ?4 W) r5 |' p! M7 ]1 e6 I$ J
;;评价时间
! O9 b. d" Z3 v" O) v2 K% F. E* |ask myself [' x2 w: N" ?. ~: x' R
update-local-reputation2 ^# M. [" i5 W1 T) t3 y* @% o0 x
set trade-record-current lput([local-reputation] of myself) trade-record-current- W4 |, v6 \) n! u0 A
]* S8 w) J1 {$ }$ g, f o* i$ u8 s
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, g4 c: @2 }. i% `
;;将此次交易的记录加入到trade-record-one中
( S6 s$ \2 w. u) Bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ |; f! @) w" |/ U+ q
let note (item 2 trade-record-current )( ?5 ~# A* g2 }3 `3 ~) S; G
set trade-record-current
* s: B0 k9 n& i4 Q8 W: k6 `. j(replace-item 2 trade-record-current (item 3 trade-record-current))
& h8 h" W2 ?) ?: ^7 G- h% [! Kset trade-record-current
! J1 h# M0 @- N! T7 j0 G8 D& ]- j) J(replace-item 3 trade-record-current note)
7 d- }$ g$ E/ v. B3 A
6 f6 x6 ? @+ m& L* T# |4 T6 |, f& U( w0 n7 Y
ask customer [
( X2 ~! h& U' x& C) w# vupdate-local-reputation
8 t) k# u" v& N& jset trade-record-current+ M3 U; b# m2 r* G
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + l/ Q9 R7 {& P& F
]" {' U0 _/ w( W2 U( R& K
, r( _) n% I5 D9 A6 Z3 M; N9 t
( v. h1 F9 q( X' V; ~0 }2 Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 J u+ z O8 `, y; D' X
! ?6 J. P# ?+ d& I8 o: u% Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 T( p+ m1 }1 G8 y- x: I# C;;将此次交易的记录加入到customer的trade-record-all中
7 ~6 Y/ z# B) W! u* ?# gend
$ S, F* a' i2 h) L% t9 c6 L
# V( q8 N3 Z n) j/ F5 qto update-local-reputation
5 Q6 p) K; F+ W5 y2 {% }set [trade-record-one-len] of myself length [trade-record-one] of myself
5 M3 A6 X8 Q$ K; t
( ^7 n$ }/ D( W* U9 m
4 J) Y. o. O0 f+ d$ g;;if [trade-record-one-len] of myself > 3 8 X$ ?9 b5 x1 ~* g- l+ g& i6 M
update-neighbor-total: m9 H. A2 ^! |
;;更新邻居节点的数目,在此进行
3 F: {. r( Z6 k2 x/ `let i 3* B2 K% t( o% w
let sum-time 0' T5 j J. M8 }3 v( |
while[i < [trade-record-one-len] of myself]
- Y" x) C7 }5 V[8 t2 Z. h# T5 u& @4 a: [
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 l: v i! K$ M
set i
L) E! {" R( J% L r( i + 1)! g8 U% c: [/ @9 I8 H6 ?
]) j# V) b4 p7 J1 p! ?4 I
let j 3
. f2 Z1 |( @7 @. v! W, m: b4 C- Dlet sum-money 0$ j7 E+ o8 E# @& {+ f
while[j < [trade-record-one-len] of myself]
; H5 O( }7 o* V; @" j[
+ q- d6 f& y+ _" `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)
0 M/ e8 {) h2 W* N7 c# K4 E. u/ Wset j
) T0 W) b c. h& t4 U2 ~5 F# G( j + 1)
3 p, I; {7 x) X3 p" l]
/ @3 i/ B/ v9 W0 jlet k 3
* h) i7 E5 }7 `. \/ blet power 0
; r5 X/ ?0 O, Clet local 0
6 K0 v# F( |5 uwhile [k <[trade-record-one-len] of myself]$ X' C: A9 f9 A' A. C' L* i
[, y- V+ [" s: ]( O# i, {8 X
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)
; s, q# c7 h8 G1 C* ?3 ?7 iset k (k + 1)
/ a" j; R) f5 w]7 c R5 M# E# u. U- \
set [local-reputation] of myself (local)1 `0 r- U( Z% \9 Y- I
end' }3 o+ R% m( u! ~! E
6 u" t* ]( i3 |- i) K
to update-neighbor-total: K& |! @$ L; T6 g5 A& `
% C% W, X* k. c9 D5 @8 ?
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 k. ]3 x9 t' D$ m
/ U$ J9 p s7 `
X1 F. `+ r7 m5 F ]end
! ?4 o0 ?) v7 s, d1 _# A3 ?( I1 m: M# c' X! [: T6 ~0 v, ^
to update-credibility-ijl
4 ^% a5 z( p6 u# ?3 A1 k) |
/ B6 ~1 v- M) R& ^9 F;;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。& }5 T) O3 G; \. d
let l 09 X- t! ?) s, v7 \9 }# [4 {
while[ l < people ]2 E) T! }3 a8 R' H ]
;;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
7 ^2 u9 v/ s$ X" r8 P; A2 C[4 `9 R' x4 E# l4 }) v) M: {: n. O
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; b% }+ G2 }- J1 _% {9 X5 [" uif (trade-record-one-j-l-len > 3)
; {& u; p ~9 L" i9 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-one6 F- ^2 r* h8 i$ a+ X7 w H6 O
let i 3
" U' ?! {$ _# L, o4 e0 C( y/ {; ^! D: Mlet sum-time 0
. A4 |6 i5 N- v/ m0 W5 ~6 h( cwhile[i < trade-record-one-len]7 v/ A: Y3 w& F
[
2 Z- F3 C d. J$ p* @- sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ F# V& `5 _: e% mset i% G2 P# L9 H0 O- G$ s% b- F, _- |
( i + 1)
* l- ^4 q& b6 p* z]0 G5 a( _. G$ l- H4 y4 _' o' I
let credibility-i-j-l 0
S0 Y+ ]+ S) J( m;;i评价(j对jl的评价)
9 }4 |' z; I" e$ U: q* C, rlet j 3. l/ d# Z; Y+ }, [
let k 4
& v2 }6 B. F; [2 gwhile[j < trade-record-one-len]
0 j ^9 P3 l$ r4 v! {[
0 p8 m# v$ M4 Owhile [((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
A/ V9 Y- K4 K3 Cset 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)" C8 |; I+ u0 ~. W1 Z
set j
5 |0 J. H: q- y8 W( j + 1)2 K# J; R% y* n7 R# |
]; M' k6 j1 @2 V* A- 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 ))4 S$ E2 V" {. h9 P
! v0 _7 W$ y4 }3 o
: [6 L' E! U; U$ b& n( olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
^$ z% _; B. [;;及时更新i对l的评价质量的评价
2 Z$ A# _2 U! b1 C6 dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) z7 r" a+ I( ~& lset l (l + 1)
9 a2 c# O) ^8 ^; z. X]1 w7 \2 O2 b+ q' B2 {
end* N) }$ n0 V1 D8 I* o( @5 ^& |
6 Y, Y+ `+ W: b2 a( j
to update-credibility-list
0 Z" V% ], B# blet i 07 w% m* A0 v2 l4 b- b
while[i < people]8 s% \) }2 K, x, U3 D3 A/ J
[
+ R0 m4 _4 K+ q, o% C% clet j 0 e1 K# E( u4 v% ~: ^
let note 0: |0 d0 M" X( U! U8 s; l8 B
let k 0# g) R; T. S( G% O
;;计作出过评价的邻居节点的数目- \1 k' j( M3 b+ f
while[j < people]
% Y6 i; q# ]6 E9 \. k[
* F( {7 ~* \1 q+ N7 A; }if (item j( [credibility] of turtle (i + 1)) != -1); T2 d/ z3 x9 y; a6 q* l% w
;;判断是否给本turtle的评价质量做出过评价的节点
/ E. L6 g: D; B Z* q7 @* q* K$ L[set note (note + item j ([credibility]of turtle (i + 1)))
/ O6 W. ^& E/ b# K- K;;*(exp (-(people - 2)))/(people - 2))]
$ _9 U9 A& ^6 G6 e. G# ?set k (k + 1)+ |4 P4 ]$ b5 O9 o; Y) N3 P
]
$ z' K' Q% ?) o$ P2 Yset j (j + 1)
5 I$ Z1 L" g0 H/ Y5 x# N6 b]: l6 H ]( x6 x/ i* X
set note (note *(exp (- (1 / k)))/ k)' h' A, y; \3 q- s
set credibility-list (replace-item i credibility-list note)
# X4 e5 ^! a |" L- [2 C6 rset i (i + 1)5 a$ }0 F: j9 f) P/ }2 H
]
& s& f& c# D5 u) J* wend; z% N* T6 n7 V
; Y4 k0 V# P! T+ `& @" nto update-global-reputation-list
! g2 `; T) ]) Llet j 0
. k- i' @% |2 l# Gwhile[j < people]
+ S! y M" F4 `4 M3 y& t[8 ~+ a! V# ~6 D; w1 m
let new 0
, Y Q5 o5 P5 Z6 u;;暂存新的一个全局声誉6 I8 V. [" G/ l2 L
let i 0
9 s" `9 E" } C1 D# X9 flet sum-money 0
3 b& H% V$ u2 V E; rlet credibility-money 0
/ ]8 x+ k4 E7 ~- b, O; ]. `# |while [i < people]( r* w, Q. W7 j" _: z
[! Q6 v4 o! H8 q$ U0 }4 s# _
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- T z$ S6 d$ s, m! l. [' b# a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ e" f3 p* \/ x Z8 e9 cset i (i + 1)
3 q0 D+ n) v* []
& Y3 q* g9 ~6 m& Tlet k 0# u. e& c4 M2 U d
let new1 0
" _4 w7 B' ^: lwhile [k < people]
# d# J- }0 C4 Q c[! I; d. Q- \' Q% X, t8 A. p8 q" e. k
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)% a( a% R( ~3 ]# V, a$ B0 T' t
set k (k + 1)
; E4 V8 f; @$ h1 N- y! }' k& y4 C( B]
+ ~4 P6 Y/ s8 A8 s' q8 h# nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 |+ ], { @* i; r# j5 y( ?- r! f
set global-reputation-list (replace-item j global-reputation-list new)9 l4 L" v; Y1 B7 ]3 H4 s4 ]" O
set j (j + 1)2 H% m, s5 J4 [, z, L! |
]5 S1 ~* t7 }0 {2 O6 x0 ^
end" ?% X- i J9 E
( S* \; L! v$ B b% n% |# P
5 V6 U2 \/ l q2 ?; V/ e9 Q2 [/ m; Q
to get-color1 U6 z, Q, N& M/ ?7 z0 }/ J' h
$ u" q \& N" y4 R
set color blue% a8 w" l* D; j5 N6 R, L: e7 f
end6 E. p. K& I3 Q0 `9 ~: A
6 b* T4 l |7 `: r3 r# F: i0 L7 `
to poll-class
! e; B: w7 V5 z7 g% Q" tend
# p& C4 {( _( P1 a8 R9 _% o, k4 k! ?8 a/ S3 f }
to setup-plot1 M5 k. p k6 S- f+ W
& o; Q+ @/ r+ M9 q7 N8 G
set-current-plot "Trends-of-Local-reputation"( U9 E) f( ]8 o p9 Y: @& O" l
' n3 T2 F' k2 I8 Y! S, F9 Vset-plot-x-range 0 xmax
- G& m2 T" \! E' y! o1 P9 k+ t% H- |# X8 j2 \
set-plot-y-range 0.0 ymax1 R: r0 e2 G* M( m$ e6 e4 a* J* j
end
; U/ k' j9 u; H
9 n) o& f. {# w4 Z( l. H2 V8 _ eto setup-plot2' R4 M6 M' f/ B" ], N! t M: }+ n
/ X4 M& }& m5 M: W1 k) _
set-current-plot "Trends-of-global-reputation"
, k% F; u& y' {4 H3 x! {5 f* @1 v) J5 J) r
set-plot-x-range 0 xmax
7 T; ~& H- }6 C) R5 `, p, p: _% M0 Y# S& g/ i i
set-plot-y-range 0.0 ymax
. o- B6 R. k0 d: h' Aend
4 c0 L& g( o7 }0 a& x3 N
+ n: f3 r3 }9 |3 S+ Q" S3 b0 pto setup-plot3
- e# U# e5 R: R9 w4 }/ J
- [3 ?& w# r4 R( l4 ~set-current-plot "Trends-of-credibility"
1 y- T9 b$ _6 l' P0 v! M5 E5 v1 u+ [8 X
set-plot-x-range 0 xmax3 q! P! S8 g8 j1 c4 L2 `
& S) x$ K6 g- [& V! w) Q
set-plot-y-range 0.0 ymax) X, [/ `( N8 m4 S. i5 l4 N2 n
end
# d+ m7 c: N2 ?% O m
, t' E* z: n8 o. I, ^6 Kto do-plots
0 e Q, I. K% ]1 L aset-current-plot "Trends-of-Local-reputation"! m7 s. `2 ~) h9 g! B o1 c* O3 @
set-current-plot-pen "Honest service"
. U& X, K% ]7 v9 X& r$ V% i6 K+ \end' D2 a& }7 b/ n& ^/ j3 F. |4 W
* e* K g+ t3 e/ t4 {
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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