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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
6 s# A" _9 S7 c! Y) W" o9 ^globals[
; Z2 p" {( R, ]% Dxmax
" n- m4 v2 V( w2 ? Q- p5 x1 Bymax
% K7 W6 Y1 n) y5 [global-reputation-list
$ W8 w0 u7 x- C% x2 v
; {8 h. i" x# X( E. };;每一个turtle的全局声誉都存在此LIST中5 P! w: z t+ R. Y/ f
credibility-list2 t4 X7 N) ~0 k v
;;每一个turtle的评价可信度
; g" v/ M# j, y: j/ S# @% V7 a+ Dhonest-service$ m G3 i G# w) w) R
unhonest-service! ]3 H2 y2 X n0 V4 `& [
oscillation1 @- v& n# q& r/ a
rand-dynamic4 \; S# l Z+ N' {
]
0 t( ?1 ]9 ?2 p% J0 O' J5 x9 C1 b( S) u7 d( y0 d
turtles-own[4 i# p I2 W" s: h9 c$ W
trade-record-all: W; }# K. v; Y
;;a list of lists,由trade-record-one组成
# o$ u( G/ @ k1 F/ W( h6 J% Wtrade-record-one- G3 ^( G* ?4 a. j6 z3 E8 L
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% V; P+ u0 n1 [2 M2 `$ }: a6 s1 B
5 O& N$ N2 s% @5 ^9 q% x9 Z;;[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 Z% C0 B' p5 x& X% _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]0 k$ c7 @9 q. S" Z9 b4 {
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
+ t+ v* o6 M' x7 Z' ?) Y$ b bneighbor-total
" |. t x6 R0 y) Y- T3 i) e4 y;;记录该turtle的邻居节点的数目
1 g& ]! \7 C: htrade-time
( b- v- e# t+ I;;当前发生交易的turtle的交易时间
3 o4 K7 S% l* ?* f8 M( qappraise-give
# j% B% U* f1 J+ G! r" k;;当前发生交易时给出的评价
- U) O9 N9 C' r! w7 Fappraise-receive
! u7 a$ F( u, I8 K- ]9 r;;当前发生交易时收到的评价
0 g6 c6 O2 G v5 I( L# zappraise-time( \4 X& O, o2 c/ A$ N$ E
;;当前发生交易时的评价时间: _' I# g( j& p. O
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 b1 o( U2 }8 e, q+ [& S( `/ ntrade-times-total
+ H8 R: Y& ^3 R7 r& _/ E$ E;;与当前turtle的交易总次数
+ C" e4 m9 ^2 {. L) Gtrade-money-total
4 L, Y) L8 Q; [; y;;与当前turtle的交易总金额: Z6 K$ Y x/ c- S- S& h# A8 f
local-reputation" C2 C" Y- u; y: A
global-reputation2 F7 L' ]9 h8 @* A; d
credibility
3 K- g$ ^# A* E- ?;;评价可信度,每次交易后都需要更新
% l5 l5 f% O; \- q/ `3 C, J- k/ {credibility-all. n' E$ {0 e& w1 z& o, Y8 p; 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7 x! X! Z+ G0 C7 v* Y r+ R
+ o, g1 g0 c" ^$ q k/ [' s8 D
;;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0.51 j1 v. ~9 w/ D
credibility-one
1 M2 C9 a/ C3 M) |5 };;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
! c- |. j4 q3 l/ Nglobal-proportion
1 Q7 I5 g' b1 `( l& Ucustomer* t2 w6 t; R6 \# r: f3 D. h
customer-no
7 r1 a8 P/ O; I. t; ~. j. T* Ttrust-ok6 w/ b% i% O& ?9 r% n! K3 Z# j& `+ B
trade-record-one-len;;trade-record-one的长度
; X N# O* G5 y3 s" Z% [" W/ ^$ {+ D]0 Z2 F7 h0 l; S1 w3 L) M' O. ?
* }( ^1 T. Y. W( P
;;setup procedure M, T+ }/ f" y% U* \( ]
* _# B3 M, { ]3 N
to setup) K7 c: K+ y# d7 B6 I6 J
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ca, ~: M( L) d* I- x
8 S, G- l: C; t6 J7 F, _& Y+ E8 i
initialize-settings
, o5 T# d* i2 q4 T
6 [2 o+ Y2 p9 O1 n+ w% wcrt people [setup-turtles]
1 \- J0 ? G9 x) a* L2 ^" K
! U9 D9 h* D( ]' I0 wreset-timer
: d+ {8 f" M, f# I7 }
% e6 \ s9 p' r" n4 f. O% zpoll-class& S4 Z, E* m! S
% S# |4 _' L; x. y9 Usetup-plots
. Q' X4 X- X8 i+ Y& d) Z/ b/ }8 a' w& e$ J' _/ H
do-plots
" c- A* {" [$ x/ T3 M/ Rend$ |7 r" K4 d% N1 d: i$ o
% f, ?9 q' M e: ^
to initialize-settings4 V+ Y0 k: g2 ]! x) |) R4 p
7 C* U% ^2 m9 d0 Qset global-reputation-list []
, A. f* I0 x1 a& u! c& |2 `
0 G# C! ^2 N9 Aset credibility-list n-values people [0.5]. T8 r" e8 F ^! @6 J
( L! S+ O# R1 F* L9 {set honest-service 0
: J* z/ w7 r4 }: p# ]0 C- |. |2 |1 N; d T6 m/ t/ {
set unhonest-service 0
, Q& I1 f: T2 [5 U/ q2 f
& c8 B: h% d+ b8 n7 {set oscillation 04 |; z6 `% c8 D, q
$ W$ Z: ]7 a8 Z% V0 J* X
set rand-dynamic 0. V. c. h; X) f5 B* f& t
end
# R& O+ A; U! w: r8 Q$ e, @5 ^# K/ `
to setup-turtles 8 {- W, U7 T: M8 s0 _+ j4 H
set shape "person"2 r% ?) t; g$ R0 h
setxy random-xcor random-ycor& W1 N* X/ X. o/ H9 T
set trade-record-one []! O: X" e0 P9 [9 \2 A
/ u) z% d& l( }0 ]+ @9 cset trade-record-all n-values people [(list (? + 1) 0 0)]
7 R7 P b, Z/ D, e0 H
% N. a; `7 R( \% g2 Kset trade-record-current []: F9 F! b$ L' {! D7 N) N
set credibility-receive []
+ R6 ~! h, F- M+ a0 }6 v' iset local-reputation 0.5
9 u# Z0 P' ^# I' j* Cset neighbor-total 0
4 h* _1 v7 Q- { R% }set trade-times-total 0
6 k0 u# k1 Z8 T/ Q2 J% }6 xset trade-money-total 0
3 l7 l4 [. H+ W: ~( V: m7 Pset customer nobody U# Q2 g7 t7 K U) X) z
set credibility-all n-values people [creat-credibility]
* V3 L. q6 R0 V p2 iset credibility n-values people [-1]( a! F! n& c& N
get-color
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end
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to-report creat-credibility
: Y9 o) n3 R7 G; greport n-values people [0.5]( \( l' P4 x7 V+ P; O7 |. Y3 U
end, x! i& ] v$ K1 j
9 V" X, F; q, k* B- g# w% f: ^, Dto setup-plots) k9 e7 Z+ {. N$ R+ O
; @7 v( b2 F+ ?; _7 | O7 Y* `/ ?set xmax 30
) m7 ?( f+ R. ~" h! ?: b# w D; O9 Y4 l6 ^4 R1 u4 F
set ymax 1.0% j; t. h7 k' I* P4 x3 F8 o
3 T1 P2 `8 j$ _- M
clear-all-plots8 @" Q6 h& a# `7 x; D H) j
$ O5 ]' i$ z/ o! h- F4 d5 ?
setup-plot1
) u8 X' W: [8 t2 _
) D( V! g$ p( J& ssetup-plot2
% E0 o- b, {+ x" {) x9 g, v
P$ o- B6 }. Jsetup-plot3
, v9 f* A; j- F8 W! v: _end% X" w! l2 |6 ?" m6 u, u
/ u1 J2 s" f: b' z3 |0 u% Q
;;run time procedures& f, i0 e9 W5 E) { r5 y
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to go) _; Y6 K2 t/ \9 n- O+ O
& }3 G( w, s2 q* X4 Q9 }
ask turtles [do-business]2 N# U5 r, Z7 F4 u9 n
end
$ j6 U' U7 w$ d K2 c6 g5 \7 \ J D# r5 ~6 `. U1 H. t
to do-business
% T' E8 v3 \. o! ]) D `
" J' f: H1 f9 Y* K0 s" m8 }$ S
. H- F# G5 w/ G" e* S# N' M8 ^rt random 360
2 {* i# Q9 K8 g
& H* ?/ w1 y, Efd 1) n1 ~- k1 e3 [9 h) e( W
0 V4 n* Y0 i% _/ l* Sifelse(other turtles-here != nobody)[6 Q9 I! `4 j0 f7 u- S G
' _$ G& V2 J* Z/ q1 `% b# nset customer one-of other turtles-here
* ^" c! ^% z& E$ z6 f
6 M1 y w& w$ J2 z3 l9 g;; set [customer] of customer myself
" B6 ]1 B! K" S7 D1 K+ j M! G/ j, @9 i
3 s; y: O$ `3 s0 w: M. Jset [trade-record-one] of self item (([who] of customer) - 1)1 `2 _9 T3 r# G& W: s4 S/ }
[trade-record-all]of self
( L0 d) P* ]; m, f! }8 K$ A1 G;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 q, I4 ]8 _! ]; J
" }/ L/ n/ T1 \7 lset [trade-record-one] of customer item (([who] of self) - 1)
7 _# C! @- s- G+ `; T% h[trade-record-all]of customer
4 Q. U. e8 w& Y7 Y1 |4 a6 i# g
set [trade-record-one-len] of self length [trade-record-one] of self
! r7 K9 [1 e: U. r5 ]! h& W* V" u. ]# _" ~3 b$ V9 t) B; [
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
/ Y- L$ @9 [0 B3 k" x5 N$ K. B;;先求i对j的信任度7 F1 \9 {6 j; T) X. v" X+ Q
3 x+ u) Z W+ ]3 n5 W& ]' ?% U
if ([trust-ok] of self)* H" Q6 B- T3 W, |( B( u
;;根据i对j的信任度来决定是否与j进行交易[
. L( w* N3 \. j) Task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; j2 x# \6 X6 Y3 E+ c
7 a! U0 E+ ]$ Y[( O9 c8 W" s# _% p
6 h' j3 a, X; i" f) `do-trade
. S# q7 t9 E( `1 |6 h: q6 I, E0 C( k8 V$ `5 r
update-credibility-ijl$ T; i, A7 Y" @0 m. D8 ]
1 W3 U- @2 p0 a+ _8 C- cupdate-credibility-list" `1 b' z: a$ C$ c: y+ K
. t8 X7 |* V) p5 \# X
' t. I- l7 x# ^' Wupdate-global-reputation-list
* J. F& p+ {) _1 J8 ?+ w& k
* `: E3 m6 k1 `% ]$ l. vpoll-class
* C( d0 ?+ {9 d( a: _4 G& q* i- w1 F
% H4 o/ k5 a. P" x6 B. o$ S' Oget-color$ q8 o3 d9 o, s( k+ d
& [* m8 X+ x# y) x: i
]]
. S1 v- u& [2 P* K
! ?( _* L: Q! h;;如果所得的信任度满足条件,则进行交易$ _8 c* i: F4 G, y+ f/ z, n
. M H2 Q; j% P2 h[8 n; J; F3 j. T" ~$ N
. F) H6 L! q& L: D* s* vrt random 360
8 D Q7 O2 ]6 h6 }9 C9 k* ` Q
' r% Z0 K* O- b- W! f& S+ d1 yfd 1% t/ u8 Y; c, R+ E4 q
' w9 `/ p: e5 v4 q]8 ?8 ]1 Q/ n6 m3 w" |" H
* e+ m' d, d; `* \ P% ]5 f
end
% o8 P0 Q w; }4 [; z- u1 L" F# m0 A% s' d0 d6 t9 g5 S# w* g
to do-trust
" ~; n/ z9 Y( p, e# Vset trust-ok False4 W& r Q, m' H; F1 u3 ]. P
' Z( g8 L- K. q! |: @
1 N# l; U# I6 ?* u" D
let max-trade-times 0
! q' I6 \5 A" d; a, B5 x4 Jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 q/ b$ p7 F8 ~/ v; O) |) Rlet max-trade-money 0
7 d; a: e7 |. {6 e# tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
% o3 ~2 h/ u, X9 d$ o$ Mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ ]: C# t# y2 n' `4 G C. E
% S- q9 a; A0 Q
: R, \) o( ^ b- D% m
get-global-proportion
6 @& F8 R5 X4 W L# _7 Alet trust-value/ Q1 e) ]4 e2 J( `
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); U7 \0 ]9 a2 {: _6 z
if(trust-value > trade-trust-value)
$ I( V; F, k1 e Q, R[set trust-ok true]
* ~! x7 ?( b/ i& W5 ~end# A! g- l0 K6 c4 f) S3 M
5 U# g+ E2 y7 ^- V
to get-global-proportion
# |$ {+ G: v. N# B* M6 xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* J1 [: X5 T% t. L, E# H7 `
[set global-proportion 0]; k V/ O! H" l5 h* l
[let i 0
$ X) T& r- Q7 @0 a! Y2 mlet sum-money 0
9 J; I% o# F( Z& o: }( V: t twhile[ i < people], t/ I# z: g* h1 `8 z& T, l1 a
[/ \+ J' s: n# m( e- q
if( length (item i
, Z T _9 J2 x( u% A[trade-record-all] of customer) > 3 ) S* ]" K Y, {5 k
[
5 m: x" n- G7 C( xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 p$ ?( D: U* O0 X
]
6 g, C& q8 g, Z9 `# |' @8 |- A- K2 S]; E, S! N- X9 a' z3 @, q: E
let j 03 W# i. b$ V% {1 _8 ]( t
let note 0' E( A1 L: y5 A4 ?- l
while[ j < people]
f* Z A+ K0 X' [+ X2 p[1 `8 E3 v! s* R1 I
if( length (item i
. p; ^6 G- S$ V0 g, R% N- p: S+ d[trade-record-all] of customer) > 3 )
. T) O5 W8 K2 A, S4 b) m9 `2 _8 y+ B[! v( D8 K) P) {0 Z. d( i( }$ `
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, N: N. d9 k" I; a3 g8 M0 o[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 c/ n% @! T. [) U[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* v5 Z# o! t. h+ \+ E& ?, }
]; @7 v% }: C: P6 P: ~9 i9 P0 E
]
, W/ b F* P4 [/ }5 C" zset global-proportion note. S1 z$ U) X: l# c% A: A* U9 x* b0 [# E' ]
]# r" Z j% B4 L
end2 W: I' i: c% m9 s/ l9 K
) M7 R7 D/ Q# i7 z3 V9 v, ?5 [to do-trade/ Y4 A/ d5 G4 f* b8 V9 i
;;这个过程实际上是给双方作出评价的过程
8 V" S9 ? Y$ `+ Y: b3 I5 m4 tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 v& |; y1 V6 r( \3 ^/ p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( M5 n3 N7 h) {, t; e* \' `" x
set trade-record-current lput(timer) trade-record-current0 n; x& I$ T; _3 s# ?8 g
;;评价时间* A' E& n- \& w B3 z
ask myself [0 M0 y. e1 A0 j; K; d$ s$ |
update-local-reputation
R9 e" H0 M2 V4 e3 |3 Yset trade-record-current lput([local-reputation] of myself) trade-record-current$ ]$ S4 o8 u) H# n% U+ H7 u
]3 Q4 C( i% t$ \3 y+ W8 n9 N/ s1 V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! f! x, A% y# j;;将此次交易的记录加入到trade-record-one中& n. _/ p& I, v2 k* s
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! O- |' x, o- m8 Ulet note (item 2 trade-record-current )
5 h) j; o `& X6 Qset trade-record-current
. m# L* ?. p- V: N1 ^(replace-item 2 trade-record-current (item 3 trade-record-current))
! O* Y! w2 Q5 a) Lset trade-record-current( c, `$ }5 f. h- `
(replace-item 3 trade-record-current note): L: _! L$ S3 V7 }; E( {6 ^
, R- R/ g- H& _2 o& [5 a8 L {3 Z/ p j: C/ S2 W, F4 \0 b% B
ask customer [
9 ]- p$ K8 {8 p$ `% u/ n& Hupdate-local-reputation" B3 u* t5 E- l/ ?2 w- H4 \
set trade-record-current" D+ q4 G0 |& V. ^+ R9 N$ Y/ D
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( S; ^7 [6 V: s: Y6 V
]
6 A$ U8 }- [8 I9 U9 O- o9 x. W( n6 o) u* S
" n3 W/ F: B, r8 t8 V# J) a+ Z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 M0 }; I8 j( A4 M/ A% z7 q) G. j. i
4 r0 {6 F, H, p- Y B. W* Fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% k9 G% q+ X6 T+ n2 f;;将此次交易的记录加入到customer的trade-record-all中
8 h2 _% W: K$ \( a! h, aend+ N) _7 a) X# _3 S( M; A, a
8 J! D, E5 D8 ?/ V7 \
to update-local-reputation
/ }: t/ d5 P3 Z) Z1 m- m% N1 }, r" [& rset [trade-record-one-len] of myself length [trade-record-one] of myself
6 x, r# @/ q; o& B3 N; [3 _% l
' D0 i. h! x h0 ?+ f
: Z3 s8 }# z3 k! O0 ?;;if [trade-record-one-len] of myself > 3 + L2 {3 [' u8 Z& F! y$ d: [ B( k
update-neighbor-total
8 a9 |5 B# a) A7 n;;更新邻居节点的数目,在此进行
1 d# U% r) L; _/ Z& Ylet i 3
3 B" m! @# C/ f }let sum-time 0
( P% _/ s! c" `2 @while[i < [trade-record-one-len] of myself]
, t5 v! r$ n: T3 [# G* {: G9 A) N[ ? ]# r& j0 ?% {! ?% F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )- F5 f. I4 l: n3 [. }5 D/ ]% d
set i% ~6 |' b( R+ [% u
( i + 1)
0 n: l# p& B6 Y' j" P], I( g. k8 b6 v1 d! L; s- C( m! g, L
let j 3' M) X9 f7 @& n% v1 P6 Z) I, ]
let sum-money 0/ }: H# F: i6 Q+ C, X3 M
while[j < [trade-record-one-len] of myself]9 U9 Y! U& ]- y8 B& k
[& r& h" d5 Z. P( n5 G
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)- R7 ~! q4 R7 y4 r/ o2 J6 ~6 f
set j6 [& Q; o- O6 w- T. H
( j + 1)- Z) k9 ^' `: Y* y7 O
]
" @- S, e, V$ u* vlet k 3
0 D0 B' F6 g+ ~5 m8 u: Vlet power 0+ {" d! q2 J! ?: K8 B$ m9 R2 E
let local 01 K7 u6 l- k7 k. I& _0 b
while [k <[trade-record-one-len] of myself]/ s5 R' x& D: y( I
[
3 E3 z9 ]1 U# @) b3 f1 W7 m) I" Pset 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) 5 x8 c9 h4 X& h8 I6 n/ g
set k (k + 1)) J2 z# r9 f5 C4 Y7 q
]% R1 ^. T/ J+ w1 V% \3 d7 S
set [local-reputation] of myself (local)
" B6 Q3 b. S, k1 F) l, k4 hend
, v, l$ [0 b, J7 R( m$ v
! o* @$ v( B3 c7 o! @to update-neighbor-total
) ^% t- e- q7 K
( U% i% I8 v; lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 Y9 l' p9 v' c# Y8 K6 `
9 O+ g& I6 Q8 T, d) Y- v2 k
! T0 y# V" u3 b! V" Wend
5 n9 y6 ~6 l7 i: S: j6 C& J
# N* u. b# D; Ito update-credibility-ijl
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;;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 x5 ^+ s1 I; `: E5 {
let l 05 j- k @! C9 k2 H# D* Y( y
while[ l < people ]) E) H1 A5 K4 f# |( p- ?0 x5 d; d
;;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
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2 ~0 t" A, M" R. x6 H5 w. V7 mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 b, D! O: N. z# y. h( _
if (trade-record-one-j-l-len > 3)
' Y+ f! n C+ I: G; h8 P[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
+ E: e" o; L; W+ V* Ylet i 3
! @$ m b6 l% D) c7 x- L1 n3 llet sum-time 03 u3 r+ Z- U+ E) t9 X. r
while[i < trade-record-one-len], }% G% h* Q3 N4 ]* t W
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- n/ N1 e, f. o7 }2 jset i, v" K9 f& o9 y. z9 A
( i + 1)
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. D$ h1 ]! h( s3 Glet credibility-i-j-l 0
( d G4 ^- W) Z! [% E;;i评价(j对jl的评价)+ m- H7 T) I7 p% A
let j 3
) F# u5 `) Z# U2 K; B) |9 llet k 4* Y4 s; ]3 [6 P ?, f0 r
while[j < trade-record-one-len]7 E3 i) ^3 ^6 n5 Q7 q* M: ?3 W
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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
( g7 m; A+ t- a4 Y7 {9 {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)0 Q: H$ a6 m7 F' I9 [( R
set j
/ h7 ]( F6 ~( y: M, c1 J! k2 I( j + 1)
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' s! C+ ?6 |, oset [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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- q+ a9 ~1 Y4 r$ g4 Z" p/ {;;及时更新i对l的评价质量的评价
7 e, [* @( R' t- G; @6 l6 |2 Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! l' L2 ^; p, V9 E6 W+ U
set l (l + 1)* c& \% p* {# w7 y
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end
# l8 g+ j6 ?. S
9 o+ z& G: X) `1 V. J& k7 Rto update-credibility-list \. o+ P- k$ H: [- l
let i 0
7 I: N$ z! |7 y* c/ p4 x* H+ U8 U) cwhile[i < people]
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let j 0( c, {" y" e3 m. [3 Y% t, s( m
let note 0& B% }6 e- R2 v' }
let k 07 M% Z& w, Z; W; ?. q
;;计作出过评价的邻居节点的数目9 L. v( `& f/ C" k: L& }& B
while[j < people]; o% a' {$ T* _
[
/ E7 q' x- v3 W9 Lif (item j( [credibility] of turtle (i + 1)) != -1)! c8 F3 H. a3 f, a' [8 R) o. l
;;判断是否给本turtle的评价质量做出过评价的节点6 f- G% L& y! U' f; q( f' t+ c' Z
[set note (note + item j ([credibility]of turtle (i + 1)))- Q. n$ @* _- a8 T: U
;;*(exp (-(people - 2)))/(people - 2))]
% L* N C, y6 _6 E2 k) oset k (k + 1)+ |' k9 F1 X- s6 e
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set j (j + 1)
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# q1 f% h8 E% M0 Z& M6 u4 a- Aset note (note *(exp (- (1 / k)))/ k)0 _# E+ o& g) Y7 T+ S! |5 p
set credibility-list (replace-item i credibility-list note)
r; d( Y! R0 }! W* f& D6 hset i (i + 1)3 R% ~3 v0 i+ @& u# K/ {4 I
]. N) j0 H5 @, B( O. m
end3 ~5 `1 d$ S0 d. O9 ?/ ~
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to update-global-reputation-list% g+ c+ ~4 X% b$ J) g
let j 0
! t! B/ [4 c" z- lwhile[j < people]
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" U) I* F# y( S/ p) C- }let new 0
, ~: `2 [4 B6 E/ L. H! }1 E;;暂存新的一个全局声誉
- n0 L/ ?, \$ flet i 0" E" R8 }! P. n0 p3 m
let sum-money 0: a, g2 W* Q# ?) W4 j4 _
let credibility-money 08 _% Y& y2 ]$ ?% _
while [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" ]% n6 r$ i4 @9 O wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ \4 U5 ~, n- v+ p( a. g' q
set i (i + 1)6 q4 [ Y& n2 h9 R$ j' ?
]
5 j: `# m2 A' f! D; f: Ulet k 0
8 b2 t; p: U( M% L' @let new1 0) Y" u- d3 [# j
while [k < people]3 W+ t' P$ r7 U7 g
[! X, [ e7 s- k) n [$ N9 s
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)# j+ \5 S" }/ q; J, ?3 ~) B3 V
set k (k + 1)
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- f5 D/ Y* R# t/ l5 ?set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
W0 h# X8 L8 [7 W% @( Z: B4 @set global-reputation-list (replace-item j global-reputation-list new): a, t$ U" ?: m* D
set j (j + 1)
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/ q% H! y5 `. K0 z( f; Jend5 z7 J1 U7 q1 Y2 z+ S5 x' ], v
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to get-color
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9 X) c* H3 W( Q: X& o$ xset color blue
* g; G. r+ B! f" e7 gend
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2 }. @# n) L9 Q& c; U8 [to poll-class, ~- ~' B2 b6 H& N- J+ U7 j/ Q8 n
end
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@* k' |/ F; Z( \8 Oto setup-plot1. V4 N! V2 G( n5 j$ W) d( b' P
4 L+ O8 u" ]; H! ?set-current-plot "Trends-of-Local-reputation"5 |2 s' V/ F1 Y
3 T1 i: n; K, t; D& p* D# X% U2 d* G: gset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax( i" K1 H: `5 t: b c2 i" `
end+ Q1 v C, i% ~6 |# E
# j/ I) r$ f) b: k9 G4 i; k1 nto setup-plot2
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1 Q$ b$ u, V/ x$ V) G& Sset-current-plot "Trends-of-global-reputation"$ m7 R K/ w) x) C, e$ q
( B) z1 V3 T& B4 I3 Cset-plot-x-range 0 xmax' m ~; ~& m# K) ?( ]- k4 u% C0 R) I
* C/ x' J6 t8 M3 @. ?5 w; fset-plot-y-range 0.0 ymax
! H& W0 R7 C! A# B' kend
6 T3 v8 \& U7 g! S% ?1 @% A1 ?! D8 U( V5 G6 C) q' v; s; s
to setup-plot3
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax$ ]1 H8 z f5 G" K7 T
4 z3 I$ t2 ~- q: q
set-plot-y-range 0.0 ymax
5 k0 {. @ f2 B( H$ w/ M+ V1 zend/ E$ _; q; P! }' L3 ]
' h) T8 c# R% w7 Y8 s/ wto do-plots6 v' j% \' S6 {$ N
set-current-plot "Trends-of-Local-reputation"
0 q! M, e9 v e0 X: J$ i) n2 \set-current-plot-pen "Honest service"% E( y: U: A* Q# q4 k" y/ ?3 @- x
end, N ^+ ]* G3 D! L/ \
% e" m* |9 y% U0 g[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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