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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
8 k6 \6 M7 b" s5 [' }globals[
$ Y: {8 W5 m: b( v" j% R. jxmax
0 {- Q3 P6 n/ [8 m* L/ Nymax5 X, m# L2 |% F" b5 @5 O3 Q
global-reputation-list
& t* P" ^' d3 C* Q& A( U0 H6 R9 i+ ]# J Z% o0 G8 u. Z" o
;;每一个turtle的全局声誉都存在此LIST中
( ]1 r* G0 ~) U4 }2 Lcredibility-list
4 H1 s0 t, x$ X1 Y+ g( ~5 l;;每一个turtle的评价可信度
M: Z8 a/ z; s% x7 Lhonest-service
( E/ `6 h6 c2 w7 E0 A, @, Z7 sunhonest-service* h! W& C' m+ s) r% f! U1 }
oscillation
* ]8 @/ p- q# ]0 Frand-dynamic
6 v, E7 X" v6 L, t]
) R$ |2 u7 q4 Z. w6 i& ]! X- s0 ^8 Y j0 `0 j/ J
turtles-own[) U" i# U3 l0 k
trade-record-all
/ E+ K4 h4 \8 v;;a list of lists,由trade-record-one组成
( ^; M, h7 J+ y6 {trade-record-one& I* i& \7 X, h$ y% O& U
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ M: k" v/ e! v; q0 @1 l
% i6 z- z# k R4 M) D;;[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]]
6 ?8 K2 y. t P! U6 Y1 Itrade-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]$ |/ B3 q+ w2 T$ o( |
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
. N4 ]* L: y+ c+ i9 X7 T: O/ Bneighbor-total
' _8 Y! u% a& x7 Q+ _+ m+ H;;记录该turtle的邻居节点的数目
/ H% ~7 ^% |4 M. |3 N& w7 Ytrade-time5 v5 Y ^6 e: t0 Q) w- N* c
;;当前发生交易的turtle的交易时间" h6 F9 u% Y7 F7 [" s. K
appraise-give& @) b5 |4 f S9 Q3 Q" \6 z
;;当前发生交易时给出的评价! a8 b2 F, ~: j" \2 d! j! O
appraise-receive( C, ^6 z O: R3 Z$ g
;;当前发生交易时收到的评价7 A6 D, B! T+ ] f' P
appraise-time
- |" g4 S' J' f% Y/ h;;当前发生交易时的评价时间# e, R/ j0 Y5 C, u' c7 @ ~
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 ]9 |8 Z, s3 a! G gtrade-times-total+ M. ~! L: w. W2 q& `
;;与当前turtle的交易总次数8 t, U0 e7 e2 d) E
trade-money-total
& B1 b) A; s& Q' d;;与当前turtle的交易总金额0 Z2 n. b& f9 c
local-reputation& ~% S$ s% k* X k/ l
global-reputation
0 i5 a4 j x V1 e d x: hcredibility
+ g% V6 R+ X- U& a8 `;;评价可信度,每次交易后都需要更新3 S: U' W# [- Y" k ]6 ?! p
credibility-all
! \7 Q% \0 u! ^9 I3 _: q+ m- p;;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
" e* I2 m K, T1 h: l! G+ Y8 h! T; q2 R5 P# g7 M9 f
;;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
( r- g" X2 E; Y# ]) O/ icredibility-one( D) [6 q% h/ C! {! 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
7 b4 ~3 l+ a v3 d5 A, U h% Z: iglobal-proportion
. N4 z' t& y9 j* A& Y: |customer
, z' o' T4 u3 S. R7 i3 |* Mcustomer-no
/ T2 y$ V, B( m p0 itrust-ok
) N5 R4 ]6 e7 m# g4 s3 Ftrade-record-one-len;;trade-record-one的长度
# l2 I0 }6 E" A, _" J% D V* r]3 ^( [5 ] n; |% Q) J) ^
- o( [) J4 v2 I/ }% F4 ^
;;setup procedure
7 f4 x' Q, R5 g" E+ r0 u; n; ^* |2 m4 ^' {5 w$ m$ K, i7 J
to setup
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ca1 t2 Z1 c: W1 w1 D% V
* L# \* T$ i. ^+ Iinitialize-settings$ `' d' N% g9 S' ^
d8 H% D& f6 }$ T. U, a: F. ^1 Kcrt people [setup-turtles]
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5 ~9 Z8 j4 r! l% f8 Oreset-timer* G0 M% @0 ^7 N' D
0 [: s0 P' V0 O) l, T
poll-class
; N- T% I8 ]+ d( s3 `0 M4 h. @5 j( ~+ c/ u1 A z9 C7 C0 p
setup-plots
7 x+ Q7 o! ~* ]( n+ w/ `) e. y" [! W& H& J
do-plots v" D, V8 w. D4 ]
end# c0 B3 {# X4 ?+ T
8 i) p5 V" p. S7 `$ |% rto initialize-settings
6 y" b- ]- l8 i6 j: {7 R) T6 q2 w4 O; A. I% r3 A. i
set global-reputation-list []( h% `" e' Q9 j; w* ~7 V: u$ r/ ~
/ v3 `$ T$ O2 \8 Gset credibility-list n-values people [0.5]
0 K1 m( n3 e( N. h* P
4 Z0 ~8 p |3 p8 }- h2 |% o2 K, P2 ~set honest-service 0
* \7 r1 {1 C ?! C5 w/ D# C# N% g# _) i3 x" g& t3 I% R7 p
set unhonest-service 0( S7 M: Y4 h3 p' m
3 }, g" q5 A/ z' K. i+ Eset oscillation 0
. ^$ u* ^8 c3 I" H) S* a1 t4 n' `% Q/ f! `- [
set rand-dynamic 02 m# s# k4 p7 v' z( a/ d
end! l# Z0 h3 W' y! \5 Z
& D6 [* X" x+ B( M$ v9 \
to setup-turtles
E" |* z' ?2 u+ r/ n9 [set shape "person"/ @9 [2 b- T( p; t
setxy random-xcor random-ycor
: x: [& B& b$ `% G; s: ]5 `8 g. Zset trade-record-one []* k4 m' R- o- O3 x
# n6 a8 D. ^8 P6 g5 [3 {. _3 ]set trade-record-all n-values people [(list (? + 1) 0 0)]
+ o2 {, `8 G7 {9 e- E8 D- M8 o+ ~
, G) W2 Q' P" j; Nset trade-record-current []
4 g" x" i1 N. ^" C Pset credibility-receive []* G0 ?' K$ j: b( M
set local-reputation 0.5* O" g$ g; H& a6 d
set neighbor-total 01 G9 h1 y& A4 J, r3 {
set trade-times-total 07 b( u) C' x0 |3 n
set trade-money-total 0
, Y$ G/ Y: T) ?3 Hset customer nobody( }$ K; W% a6 `+ b- e
set credibility-all n-values people [creat-credibility]) u; j* v& W- z/ S9 t8 M+ N
set credibility n-values people [-1]
' h: V& J2 S# _get-color- E/ R! I1 E2 F/ N6 f; t4 R
7 ?8 X9 u3 p# W2 Zend
( W: Z- E) }. I+ g
% [+ [- A* i6 Q! G! O* n& c; sto-report creat-credibility
; q+ M, t+ F6 E0 |, b( i& A. lreport n-values people [0.5]: A) V! b4 q- l
end6 v& T" I7 D) S# N5 \: {
- T/ r7 d" C/ ]: L3 g7 j
to setup-plots4 p: S) V' a7 S+ n
/ V9 X; c6 ? ~7 ^$ {! ]+ @set xmax 30
/ a5 O+ y+ H) \0 X O4 x- m5 X% V! \% x% z' ~3 y( C2 l
set ymax 1.0
6 n' l' _4 a- s9 N9 v, r- i4 f8 m
5 f6 D9 \7 t Bclear-all-plots+ W5 Q2 ^5 p' d
/ K/ Y# D2 u% y6 }* T' f0 ]6 g6 ?8 C1 qsetup-plot1
1 Q3 i- g$ j E! v& u; C4 A5 i$ O- C' g3 Z: Y6 o7 ]' O! g
setup-plot2
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setup-plot3
; x5 [! b, I2 ^; d1 A. N% A8 B! H9 ~end
1 U' z5 o% B! C2 D, | H
5 j2 ]9 v, K4 f+ i8 ^/ _0 o( {;;run time procedures1 O w! f7 ?7 g$ ]! ?% @8 `
" I* B8 }% D, E8 K8 p& J( xto go- A _: F% D6 M; \
3 N1 [% {% c" w2 U. i9 k( W
ask turtles [do-business]* |, r Z/ \9 j& U# w2 k/ d
end
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to do-business
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% D* y$ T. o4 T* |; O) Zrt random 360/ k) d! W5 Z: r' y+ O. n+ S
' C: Q2 N6 x/ w0 U( w; tfd 1
$ }' H- w( [" \& P6 Z9 N! D4 ^" j. D l! N/ v; w
ifelse(other turtles-here != nobody)[
! m) B& [( p2 F7 ]
?. E4 s5 i, [7 lset customer one-of other turtles-here8 Y6 W3 I _; Y' t
7 t+ y1 {+ [1 P$ |5 K' |* i" q;; set [customer] of customer myself
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6 e" y5 y1 W0 O# }2 ^set [trade-record-one] of self item (([who] of customer) - 1)9 R, s2 l+ n2 Y" t9 _ P
[trade-record-all]of self0 o: P' B9 @) B# h9 r" X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) ]! \$ i/ I# C V. n5 `
' n4 @) v5 r9 z3 ~' @ `8 A6 Qset [trade-record-one] of customer item (([who] of self) - 1)6 h3 k) e$ S! n# x
[trade-record-all]of customer
3 y8 p# n/ c, `/ z' k; g" k5 J ~' r4 h! J. h) j
set [trade-record-one-len] of self length [trade-record-one] of self7 `# l8 q( p5 |4 W
, s0 J4 x' G5 `4 _& n: Q
set trade-record-current( list (timer) (random money-upper-limit))$ h" v6 L/ V8 E4 {% k. F1 L
, [. U+ O* j6 s2 [6 N1 T
ask self [do-trust]) F3 J1 j6 ~0 P
;;先求i对j的信任度
& ~! i' T$ x6 w( U8 l: S) k) J: w; T$ K3 L+ m
if ([trust-ok] of self)
2 g8 Y' z1 C4 e;;根据i对j的信任度来决定是否与j进行交易[
; v" ^$ p; B% N* D3 S! J9 N# r' Q% Sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 _+ e: e% Q1 ?1 f3 n0 I
6 Q) f/ a0 ^, c' g[4 E& K% c8 M1 I' D. y8 L0 y9 V
b% I) l3 P" M1 y# |% n' g# i
do-trade
' W0 O1 `; c8 B/ q R& A& H
+ o' ?! @( L) {% L/ n4 k: Wupdate-credibility-ijl
/ U! {& l* q& V* y$ m" i# z) B; k* K* c( z
update-credibility-list
' _, E1 f% L" s% s. ^
% j% k9 V- P. y: a- |, f: @# _4 q( z ~7 b* p
update-global-reputation-list
3 D( a0 y7 s ~ e: ]) ]: g0 w* ^/ y0 n# X; n" |; s2 r3 m
poll-class
9 k- R) B U) W; W- R* Q* m- J j$ @. B- ]7 Q/ h" L/ c
get-color
! S) s1 f! U5 O# `3 t4 |2 H6 _6 i7 a8 {$ s
]]* H" K. |( d+ u/ M8 t
# a2 D# [3 L' M( S. ^( S, {1 S( ]
;;如果所得的信任度满足条件,则进行交易
! C. `& f* i2 O/ d/ H8 [$ ~* N, m7 N% T9 y- `+ S
[. B% p) g6 V% h8 X5 N
" b2 R6 k/ N; {7 R3 B" art random 360
) W8 D$ B) P, f/ ^/ ~3 o# g0 J5 _) v; m4 B" N
fd 1
; e5 \4 k- Z% P; j1 s# X" R( d W/ Z' {; D; w
]
% d$ _" \; v9 U. C1 t7 k2 ]- a$ ^% U3 d. N, y9 {
end1 l* B+ |9 T E+ J2 T* v6 X
- Z; @3 {7 L+ ^: S% c B
to do-trust
; _; Q0 R8 a# z9 Q* [% ]set trust-ok False ~9 Q- B. [* a- Z* p
8 ]% F$ W5 M8 Y. _! O6 T" ?; l; i7 w5 c" v! V/ b
let max-trade-times 0
! l; E( f+ {2 W, q/ T( oforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 [# |7 r( J9 x* Q8 E. U& @/ ylet max-trade-money 0* ~' S7 q4 n% [; Y2 W% G+ K( D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( O+ k5 m( M2 k$ o# h+ q
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 d9 Y% b% h1 O. w+ N/ E7 p
: Y9 d& v' H1 C( X' J& n
6 j, R$ D* I& L" Xget-global-proportion( j. r8 S6 R& _" Z. j0 I( I: f
let trust-value
* ^: y, |, U! {* Elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' ]$ Y* Q w+ Hif(trust-value > trade-trust-value)9 b. W$ n; u7 J& `( M) H, p
[set trust-ok true]2 H+ b* d. Y H9 [8 M* y) I ?
end4 G) i% C, T; N. k, B4 S+ \
7 q0 P3 } f- s3 `# t H* I7 h
to get-global-proportion
* A% u, r1 n) [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 W t0 G v' n/ Q! ?[set global-proportion 0]
; W! H A: ^; L8 y! k: V[let i 0
( }0 ^' T- j+ A: C+ P; l/ n. Alet sum-money 0. M5 K% ]& C2 p: S
while[ i < people]
! r1 |7 b1 C7 k$ f: N3 e[
. _2 _; K- R1 u( _8 rif( length (item i
& g' L9 D; I7 A1 L( H- P: A" W' Z[trade-record-all] of customer) > 3 )
9 ?/ E$ t) f; |[
) }% p' U0 B# x( ]" U$ rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. ^7 n# a: V! K3 |]9 V4 w9 e# C) a0 b& q' K
]; L" A- u! C- |. r3 ?9 k. j
let j 0* G5 j) {9 c" ]" {8 W8 \+ L3 o
let note 0
8 x# N$ k; P T3 `# {$ `1 Awhile[ j < people]
* t Z# u" O9 q7 j3 t) _[1 ?5 x1 E, P! x- v% S) L2 e$ \4 m$ G4 i
if( length (item i# e z, u+ f! x$ E$ y! i
[trade-record-all] of customer) > 3 )5 H2 m9 W- }8 N( Q- v9 {; r' [; u
[8 W5 b4 |0 g' k' q$ _5 |9 r/ V5 g
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 {( L8 S2 x# K5 ^) m9 l
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: }0 c+ _4 @5 q6 q# ?* J
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
\, b* i" q8 Z, ?# c]
1 J, m! q! G3 R: y3 [. {]
2 I; z. d: J& A" N( lset global-proportion note& ~) Q) x2 \% F6 ~# m P; M
]2 k) X/ R q: O' u4 J+ @+ y
end6 a1 H2 a* \# K4 R1 Y v# p
5 d4 P9 ~+ E: L4 Cto do-trade
( g- G1 A& o1 D9 Q;;这个过程实际上是给双方作出评价的过程, p) z; |0 E* t' j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 m/ g9 w3 a$ d1 W3 @4 Gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 x o. [5 P0 W, _9 e1 p2 r
set trade-record-current lput(timer) trade-record-current* p6 U2 A6 r, F' F z( ?$ {5 Z4 F
;;评价时间# U+ Z4 k9 {* j+ C* H% _
ask myself [/ q; X' J6 C& {0 b
update-local-reputation
2 l, k) ~* ~- S1 C: {set trade-record-current lput([local-reputation] of myself) trade-record-current& L# D8 e' J, V( M: x; M
]/ L2 I6 I4 Z% S& P5 M, C$ x
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% v+ E- x' y( j4 Q7 B: N8 t;;将此次交易的记录加入到trade-record-one中0 ~5 d1 s( J) r, R$ y; ^5 N) V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). ~0 U" T1 w. L2 I- o9 {4 G
let note (item 2 trade-record-current )
$ o! k) A6 _5 x' I) H. rset trade-record-current8 K* A- L2 Q' G! @7 k7 d1 e* B
(replace-item 2 trade-record-current (item 3 trade-record-current))# k$ V5 p# F1 ^# J; k
set trade-record-current
! r/ k# F" G0 v. J$ C, K(replace-item 3 trade-record-current note)
3 h: O' D" E+ ]+ \
& c% O! t! m; _
" S N5 _* w7 \/ qask customer [, S1 U, l+ X3 s1 ~. e
update-local-reputation
) s4 {; w4 K, u* D# f! dset trade-record-current
x- t) |- @! l' x' m0 }6 n* G' Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : ]1 b7 }# f1 @! w
]4 d5 p% i9 z9 W. x' M& ]4 v& A0 q
. D; U( g0 o: w d' H" D6 q, ^" ~5 z
/ U. K& u+ _. v+ Q3 [set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ K& M: j6 t, j& f+ B/ h* H2 P% }
% V) m; ?" H5 z) z/ y; |3 o
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' k; L5 F2 `* ]
;;将此次交易的记录加入到customer的trade-record-all中
# h! o1 {9 x$ f: zend
) i1 r2 ?# O+ o- U+ m
$ W( J/ d4 B7 U, g* \8 K2 rto update-local-reputation; \1 I& s4 a- |9 f% c0 u
set [trade-record-one-len] of myself length [trade-record-one] of myself+ x9 U2 }! w. @& N9 G$ Q
' i2 j4 H* B+ \- o
6 q, M3 }7 k6 ^8 k5 w* i;;if [trade-record-one-len] of myself > 3 & z5 Q, |( a2 F" l9 C
update-neighbor-total. s& P9 l( Q7 k* r" y. b" Q0 h
;;更新邻居节点的数目,在此进行( s& [2 R7 ?; }3 F0 q
let i 3
: N4 m6 j, v# Q0 v( X4 {& \" Tlet sum-time 0, [: J2 O2 T9 Q B) B9 Y
while[i < [trade-record-one-len] of myself]
' X7 f1 P) H5 X' e[( k6 ]4 V* N; A% a9 f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ O# `( k! O7 B( Yset i5 r, [% [$ L6 j$ ]/ D
( i + 1)
% m- m/ {3 B |/ ^( D$ `& m]
3 I; I7 E) J$ E; V6 J- ?* ilet j 3
$ d' K3 a& S. Olet sum-money 0
( l6 }& y1 T/ h9 I+ T3 G9 Hwhile[j < [trade-record-one-len] of myself]
( B$ U/ o; _ F6 l- d* A[
5 K/ V% b |# nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
s g+ F5 `! H4 Gset j( `2 J. f" n; y$ J/ k! F4 _
( j + 1)
9 ~# b, z4 R5 t]4 J0 _9 _" B4 r, Q: c/ C8 Y9 @( v
let k 3
4 P' V* ^" d7 k+ X+ Alet power 0
: Y5 ? E& W4 X( I* Clet local 09 l1 m& h7 r! z( \/ u, q8 ?! j
while [k <[trade-record-one-len] of myself]1 z# U* I& h* A- ~) F
[6 O; ]2 I$ ]8 L0 H9 G
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)
^; n: U; C8 m0 C5 ~7 d3 Y$ R: ]set k (k + 1), ]- E7 p0 j3 Y: ?9 M
]* w* X3 G. L3 l9 _* z
set [local-reputation] of myself (local)
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: @' P9 v4 E1 W( |to update-neighbor-total
9 I- D6 {8 X- X+ p3 _ S2 l, \, }% ]. L; t6 H
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 s0 y( i' }+ E [, f$ B. ^
7 v4 S! E" n, n. u& }# ^8 ]7 S
$ W) @; n4 D/ F) X1 ~7 h
end
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' ~! t: j. }( h0 H; qto update-credibility-ijl + c- G. D" T% I; Y
1 {& N1 V) k& l7 W) R;;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。# d/ n+ f2 i3 {0 N5 ?$ g2 ]1 ~
let l 0
/ H/ L' z1 h& f: V. b, v1 R3 D* owhile[ l < people ]) [" T% L; i" z- R2 o- j
;;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
* N( G) R8 i; K[
9 O L' y# N$ ~0 Zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
\/ R9 C3 O% d7 n# Wif (trade-record-one-j-l-len > 3)
: { \( n/ K+ V5 _( D[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* @, H' z. N" H# H& h1 X8 B
let i 3
- \, \; R% s( Vlet sum-time 0$ b0 `/ ]* { t$ f: e) P9 M
while[i < trade-record-one-len]
# Y" d1 G- d6 _[
6 m8 ], z+ {. |9 Aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ R2 P" g1 V# ^8 m$ O" Jset i
~1 O8 r0 @% s4 {! D' @( i + 1)
- ^0 h8 X4 |5 W" J]
& X1 Y, C6 [% _6 e! N. g/ {let credibility-i-j-l 0
! u4 ^/ V' `# W3 f4 U+ J;;i评价(j对jl的评价)* L3 e) a0 d3 G
let j 3
. d, b% X! `$ y a# u" y8 Klet k 4+ H2 y% P/ A8 j1 N5 }
while[j < trade-record-one-len]" M* W8 a! s, `7 m
[- L/ A# H8 N& x) 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
$ O. W# y6 X7 _, T5 P' e8 Aset 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)
. h: W2 v) J! Q gset j% x) Y/ u3 J+ ^6 h5 v' e( v
( j + 1)
3 S9 A& v1 |: \4 d" Q: h]
]. t, [2 u6 y0 X& ?1 |& Y- K) jset [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 ))
3 r. j2 E) ?. y2 N1 P( [$ s' V3 S9 _9 c g/ L: ^
$ n7 P3 g0 {" r* tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- A) k W- {* ]! Q3 O9 V$ k* {;;及时更新i对l的评价质量的评价
7 x* b) ^2 ? _, q, I! l" eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" a* H: y' y6 b j0 S) L6 y
set l (l + 1). d5 ?* r0 f& r; C( C. b8 z
]8 T0 i% u. T0 @" a$ X T, x
end9 S9 j8 F( D0 {
# h( u, B6 t8 w$ ^4 gto update-credibility-list# r B! A$ x8 Z5 v+ W6 u5 C# [
let i 0 L, K+ K+ U4 D7 `" [! P
while[i < people]
" r; W4 e" R8 d/ j% [) E$ u[
& @1 n0 y# [" Q- }+ P" flet j 09 p( C7 x/ ]2 n
let note 0& {% Z( p! R2 a: i; a
let k 0
/ D6 L9 O. K# T1 N0 }2 r;;计作出过评价的邻居节点的数目! }8 H" `# d! g7 ]* N2 C, ]
while[j < people]/ J0 t* |2 D. `
[
6 z e* Q X* Q0 M! v8 mif (item j( [credibility] of turtle (i + 1)) != -1)
# N2 O6 H6 {0 _5 s;;判断是否给本turtle的评价质量做出过评价的节点
" D1 C3 G. ~6 P" `( S* {[set note (note + item j ([credibility]of turtle (i + 1)))
; }9 w: d' ?- k+ Z;;*(exp (-(people - 2)))/(people - 2))]: ?" f, T& X% b+ I9 w
set k (k + 1)& Y/ N i% B; y! b7 Z
]
4 f& o" S# Q9 u$ O' O! Yset j (j + 1)
% e5 A/ n) t6 V]) j3 R4 K# R0 f/ }9 x
set note (note *(exp (- (1 / k)))/ k)
( J1 Z2 Q1 ]$ o- y" f0 q8 Iset credibility-list (replace-item i credibility-list note). z1 E/ x: {( g% ~* b
set i (i + 1)
6 D( l2 e; w8 E; p1 x]! |9 f# m1 u+ D% N1 C1 f, Z g) L
end
1 N8 K+ _1 p- `3 l
6 S5 ~, [! e, `& ~3 g' H% Vto update-global-reputation-list
& @) e' \" v( Alet j 0* ^, Q: m( v& i7 r( o( {- }
while[j < people]
; I8 O, J! e& \" y[
u% w) u4 e* O& j; `% Flet new 0
5 X, e' ~; j5 A;;暂存新的一个全局声誉% \# k0 Y+ o/ f. @
let i 0
; l V7 }8 l5 w8 p1 Jlet sum-money 0
8 R9 u X8 y! U, W B' i xlet credibility-money 0 g9 ~; I: l1 `1 a
while [i < people]5 E* B& t0 ? T" k2 x4 D! X& W
[
6 ^/ B4 B) _) y5 n( y8 Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 v. L# |0 K4 B6 {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
5 W Q1 ]6 K6 `" z& {set i (i + 1)# E& `; Q$ L% A3 K* @7 ~( N; C
]
! V$ _* T. \5 E# Jlet k 07 n6 A# b7 |1 U! c& Y
let new1 0
/ j1 N( k* F1 ^" t# B4 ~while [k < people], z# d: |5 p4 ?1 p7 x
[
@. s; [; k7 I+ Rset 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)+ j8 q6 f7 T8 z ^/ Q( U
set k (k + 1)
" R9 G( g: G. i7 P7 \7 |+ }+ C]1 V$ I. @9 f7 p
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
F/ z' O2 I N$ e4 @- N# y" Pset global-reputation-list (replace-item j global-reputation-list new)
/ Q* T7 ^. R3 P% u) X/ Cset j (j + 1)
! z, K# Y6 ^1 z0 q2 b]% I. e1 x7 i1 O& |
end/ I @. x) L( l
8 o! u! u) e' w- c
, y0 i( \' \$ _0 _5 O. I
1 [( `( p7 ^' \3 e9 ~6 s" A+ qto get-color# \* x! Z) e, l+ G
8 \! `& n) b$ t
set color blue
( w ~2 U; r/ O! J+ E: A. Wend) M& P; v; _9 D% J
* p' ]( T' M( y0 Ato poll-class
0 C6 U E' u5 ~1 cend' ~. t1 W) R; p% U3 q9 J- T' `- _
% c% K6 p9 h8 M% L8 C7 m$ \
to setup-plot1
) q9 H+ P4 U7 ^1 g' p, j
j l8 o) J9 lset-current-plot "Trends-of-Local-reputation"
6 y& I" p, s- V9 D6 X" `
3 O1 B" |: Q( f, gset-plot-x-range 0 xmax
/ Z5 Q0 ?% Y$ [# C- ]
: z. e. r1 t6 H9 ?+ @1 `set-plot-y-range 0.0 ymax Y/ j& L; ~, @' P, C$ Y( P- \: S. F! T
end
3 i8 D& g" K5 Q% n1 F6 c" A" Z. ?
to setup-plot2
+ h2 {2 n& h+ w1 Y
/ M( b/ S B1 Q' {4 n: g( B4 \/ r; Tset-current-plot "Trends-of-global-reputation"% h0 \, D2 Q' X. q+ k% x, O8 j& {' l
1 {3 _5 Q/ J8 B% }( g# r* l' bset-plot-x-range 0 xmax
2 d$ D- P$ T1 w" t- }' |: z+ w: C; I, h2 [2 S, t0 }
set-plot-y-range 0.0 ymax/ G. h8 d9 ^7 M
end8 j5 ?+ p Y' P" E3 c8 k
/ y: L/ r6 D. Jto setup-plot3
p* f) |2 j7 c8 x5 m) k6 X. c. b' o. m1 y
set-current-plot "Trends-of-credibility"2 B6 X& R0 L( V2 d' H. V8 n& h
) Q) \0 h9 D% y, C$ x
set-plot-x-range 0 xmax$ a8 f( U/ N. Q, F/ K
9 Q, i2 z) m) B9 F
set-plot-y-range 0.0 ymax- \$ q. f4 C) o" v j/ g3 g
end
$ E5 I' f' }6 B8 _. m9 d: Z4 P9 p( h* a: k) ^+ i; A2 x2 C$ N5 w! e
to do-plots
) c% G; s6 `' a1 D. T0 Rset-current-plot "Trends-of-Local-reputation", \4 m# m9 i- u* G
set-current-plot-pen "Honest service"# _* U% p' F; x9 f4 X, ^* Z4 }
end2 b; h- e! ^1 j* Y9 e& a4 o
0 w% R4 M9 b3 P% r! L. U
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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