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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
+ B) X+ F4 f& Q9 S. d- h3 j% oglobals[
1 s& o) Z5 T" W j; Sxmax
" Y% N5 x. x$ C+ t* Xymax, |1 `0 Z) j; a* M
global-reputation-list R/ A' _4 R$ U T
* l6 t* x, N& d;;每一个turtle的全局声誉都存在此LIST中
* M, T: @# e) ?1 ~& ]credibility-list `2 ?; h/ S* A& g1 Z
;;每一个turtle的评价可信度
" z! g+ [1 X5 h. z5 Q; l% [: `2 lhonest-service
5 [9 P3 C. [- nunhonest-service
5 `" w2 }, |- w# O7 Q4 z8 Joscillation c+ F3 m9 K* u3 q2 G1 p
rand-dynamic6 @" L+ U# {) B1 F
]
" S+ @1 ~% L+ s2 i# Q3 g8 x7 n% h6 i# g
turtles-own[
4 }" f, B# h1 T/ K, itrade-record-all; L4 E& r% ?4 J% Y6 g G, X' b
;;a list of lists,由trade-record-one组成
+ a5 z1 P, D3 a! A, Y% w3 Z Dtrade-record-one7 @, r. u% y" a5 Y( y4 G
;;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% |$ r. h( \% c: O
+ H$ Y3 a$ o# o3 E$ N! `8 {
;;[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]]
2 {+ `& A1 A' Z H$ x# ftrade-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]9 ^/ c/ L: w+ K$ m
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
" G. k. o3 b' _8 M# rneighbor-total
, s) ^7 f$ n7 c' h. a) d;;记录该turtle的邻居节点的数目
3 q; Y. j6 l4 v/ z3 H Atrade-time# B5 p, f: J# D+ X
;;当前发生交易的turtle的交易时间
7 D, t, I% X! x+ Fappraise-give! N6 g8 |2 b# o' ^! q2 X% i Q! M
;;当前发生交易时给出的评价; t$ I' |2 z( e' v0 x1 z
appraise-receive$ C1 [* u4 N# J; ?
;;当前发生交易时收到的评价# m, |2 I. w) O6 ~4 y9 ]7 k
appraise-time+ A7 j+ L8 {7 \( X. {: l. e
;;当前发生交易时的评价时间
4 W5 i6 I4 a/ b% i |local-reputation-now;;此次交易后相对于对方turtle的局部声誉
% q% s" D; Y9 y2 ?# Ttrade-times-total' s* P3 p+ a" U+ e! F. r
;;与当前turtle的交易总次数1 d: X! x" S6 M8 g. h _# }& H
trade-money-total
# f# g0 u7 R6 F;;与当前turtle的交易总金额' C" `! @( Z! t) D1 d, v4 v8 S) d4 y
local-reputation0 Q" z! b9 P, }
global-reputation# N$ H. Y' _+ M% v) A3 y
credibility, O) F3 ^' V1 b6 x N9 J0 e
;;评价可信度,每次交易后都需要更新
& d' D: b" a8 T. S2 R, ucredibility-all2 H' ^ x+ ?: K* R g8 B
;;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" X6 K" B# ^5 J# V
/ D3 V8 }: i h$ t, A; S
;;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, t5 Z9 B6 } @' @$ b
credibility-one
8 Q; {- l' g9 |;;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( \- f4 a- s! x& i+ p ?
global-proportion' x1 c- F; \& p4 ^: B. |( M
customer
4 I* c0 F( F! k6 S# Pcustomer-no
6 M1 q) Q3 v1 K! P/ o9 a/ l7 Wtrust-ok5 x' P; \2 |; |* F' ]: n6 q
trade-record-one-len;;trade-record-one的长度
& Z. ~* D) w+ Z7 a+ M: i& R( L1 ?# c]" ]0 Y9 g8 t4 S
# V. ?3 t7 X. O8 g8 ^
;;setup procedure
) `) X( b6 G# ^
1 _% W) L3 h9 Z9 {7 Pto setup
1 p1 Q F4 R+ a4 [/ S
O% w2 l5 [/ N+ H. S# aca. D% `# j' G' Z8 c
7 b, U1 C; V- e7 o# Q2 b% E7 ^2 ?initialize-settings
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crt people [setup-turtles]% T6 o7 ?, p, o$ ~
2 e1 c' y5 v) [8 B
reset-timer: w7 o' N# w+ @% A9 }
s! j; w' x4 x! M0 N* ~) H5 xpoll-class+ G4 d) l$ v* G7 V+ l @! j2 x% |0 Y8 J7 O
) I$ f! F$ w A* Esetup-plots
% e, B9 `/ W% g* x/ _+ ]+ {; w" C) g ^, z. |2 ]
do-plots* Q7 S* A# Q1 H+ o
end% f( z' Q9 K- T e) a3 C3 k
# C7 Q! A5 S/ m, k/ a. kto initialize-settings
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set global-reputation-list []1 c% g; O3 d# n, f
2 U- a. ` e6 s7 qset credibility-list n-values people [0.5]1 Y) Q4 d- m. |* V
, ?; O9 m2 L% z r( z
set honest-service 0
" @; d G' q- o8 B2 a8 \/ X
8 L2 ], D5 y' y+ }7 c1 E& lset unhonest-service 0
* y7 Q: |! l. f& L3 v; P/ x' ?% @9 ~; t+ {2 `
set oscillation 0# d: Y- f) ?# M% _
1 S" T3 T/ u u7 q" h, Y1 Gset rand-dynamic 0
2 j9 R+ p( T: y2 Iend: S; w( D7 |+ c, t
* c. h u2 I/ @4 |! N) s
to setup-turtles 3 q4 V; u+ q) ], _4 g
set shape "person"
" d' q- y# A; O8 y5 l% B3 @setxy random-xcor random-ycor
# j0 v, f( g& Jset trade-record-one []
# u+ t4 t2 m+ _( [( b$ j, ~
: p+ g. n+ M) H! ]0 p1 ?set trade-record-all n-values people [(list (? + 1) 0 0)]
- z8 w7 c7 C) c
4 V/ d2 A2 v' {6 a6 sset trade-record-current []: E- o; z) w2 c+ w$ {
set credibility-receive []
' I" M- B# w" c) gset local-reputation 0.5) q. |4 }, z3 h3 z- H# a
set neighbor-total 0
6 V! n. ]: A' L4 J& G* f* Oset trade-times-total 0
/ p! F* N. R9 ^2 ?) d5 l; ]( A+ {9 eset trade-money-total 0
{- _9 W1 Q1 s6 c& d% P# p8 Zset customer nobody
( r6 H7 }: z; b5 Oset credibility-all n-values people [creat-credibility]
* ^& n# s9 F7 r1 p& ~0 cset credibility n-values people [-1]
- `( r1 ^- @! T# V3 M2 bget-color
. j5 z7 s% z: X1 _
$ |5 {$ P" x& V- F5 M: Bend5 m4 G3 N2 \) D' M7 m4 v( R3 Q2 x* B. g
0 N$ n6 A% M6 e3 z$ e8 R7 Yto-report creat-credibility
3 B- x+ V( y& I) t9 ?/ creport n-values people [0.5]
: w2 z& h! u# r, }5 N7 Uend/ s" ]+ [& W/ G' A0 i+ _
' J2 B0 k8 r2 k6 _8 F6 q0 c& I9 f
to setup-plots3 N; [% \( D( h3 S( V& ], I5 Q9 X
4 V+ Q: _+ Y: xset xmax 30
2 l" X8 K$ f1 J. m$ V# W5 `: s' B5 a. q9 [4 W
set ymax 1.0, \* n" C8 g6 Y) y( ~
. t1 t- C8 ]! S p$ O
clear-all-plots! g) U( D! L" h& @! c' u
$ }' W2 M A+ z1 A# h# Ysetup-plot1
) e0 o1 X8 W& _7 d% X3 G2 t4 \
! t" _$ B) k2 E) N+ W6 h6 x! Vsetup-plot2. O/ D- U1 b, r1 A) w/ U$ y
/ \) U9 ~+ ` x Z% jsetup-plot3
_8 K, H# g, j: o* c+ g! c) Send
7 X7 |2 q7 ]# e' g& M
% |" H- c j8 V;;run time procedures
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8 T7 I) O& E7 l3 [' W5 Wto go5 M$ x: m c; {$ r* a) T
6 M6 B5 r: ^* M6 I
ask turtles [do-business]* _; G ~3 D, y0 m" A
end% M6 b4 c3 X( V b Y
" j! ]) ]- K! s$ oto do-business ! @ V; Q+ A9 Y& H; W' x3 I1 ?; L
, x! U* U) b& ?
# J& F7 w8 c5 P& i* A! u6 @! ?rt random 3609 f# a5 o6 P3 B$ T- z$ _* t
3 q5 G2 A4 B: r3 ] O3 e6 }3 o
fd 1
6 a1 W" [* |& l, j# g
% K" L; l N5 }' i) e! t/ [ifelse(other turtles-here != nobody)[
0 L& b. J& z5 S6 b% X
' W a( e6 }+ j* E& Zset customer one-of other turtles-here
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6 a* P4 o- I! `, M: M* h;; set [customer] of customer myself' @4 ^+ }# ?3 i: a3 v# O
8 t( n6 P* Z! q' ]# S C
set [trade-record-one] of self item (([who] of customer) - 1)3 w) ]6 h( X7 H
[trade-record-all]of self5 L# w( ^ F& k' {
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
! b/ r \* I$ b& p8 q+ b) a" h! O% X8 _- w; F; n; p
set [trade-record-one] of customer item (([who] of self) - 1)
1 A# |1 u$ h- h& Y1 }$ j" L( g" L[trade-record-all]of customer/ j$ e ^) ]- R$ V. Z
F# l3 n' n- M$ V
set [trade-record-one-len] of self length [trade-record-one] of self
- [. L e: m3 { S& R0 P3 X
6 C( j7 Y; a- F! E3 D/ ~set trade-record-current( list (timer) (random money-upper-limit))
. O9 ?3 O6 ^2 O
+ t+ C4 U; ^- p2 S1 n4 J' |5 w% [3 Bask self [do-trust]
: {+ I# M; r( K# Y1 s;;先求i对j的信任度
9 M7 s+ d8 a8 H% ?# Y
, h; }9 q" P: a( eif ([trust-ok] of self)
% b0 R' G: u. ~- b& K. i% x7 ^;;根据i对j的信任度来决定是否与j进行交易[. Q) {% d* a4 g" B. y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
# g- C6 r. q1 |" X! E! u& T
3 O$ @- U8 X' P. E+ S[( W, M) P ?0 h [) ]8 z. q
1 }: ?) _/ B5 X* rdo-trade3 j1 y4 `; O/ R0 L, w
! G0 w( n1 J% Y+ V! pupdate-credibility-ijl; p1 H# ], C* L% l1 ^* L
; i u% L8 c" A, v, U8 @; \update-credibility-list
& h% e) c4 Q9 J! e3 ]: A
7 E8 S; z8 Q3 X$ Q8 ~% _5 ]4 ~5 Z& Q; Z- H
update-global-reputation-list9 x+ K* z7 b8 ~/ R) }! P
+ I7 x6 ]4 [3 e1 |poll-class4 g! x h" G2 P. V% U5 }* @
; N+ c* q! M% a8 S" _' }
get-color
9 z1 Q4 K# d( R+ T. k8 O* g2 x$ Q
]]! _* I7 L" R: k' L E1 ?
6 b' q) w$ G: Y$ f1 U8 N* d; V+ s;;如果所得的信任度满足条件,则进行交易
c5 N. w, d; ?. Y; L) O, o7 a2 [/ M
/ T5 R! X+ G: h5 w2 y6 C[
1 C1 z/ f: v" @; ~" o1 ]& \ G1 x, `
rt random 3601 {0 J b# p ?- K" q
- @6 J2 D& _9 S6 Ffd 1. o" J7 u+ Q+ ]; V4 s: \' l+ w. L
7 t+ L$ ?& ?, ?% `. v9 M. h
]
+ L& j0 }0 |$ a. z- z: m# P! p: ~" x% o, }
end, ~' H% s" y) K0 D, t
+ t: A; S& l4 A5 p/ |1 J7 Rto do-trust ; Q% y5 i+ l: T5 e7 b" S( t6 M
set trust-ok False, h2 \7 f6 w3 Z1 c
# S' x7 F+ M4 E8 M* L8 U9 d
) Z+ s+ j+ ?, F3 qlet max-trade-times 08 h" j g5 @: t/ k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] p& T6 t5 Q& B& P6 n3 Y$ w
let max-trade-money 0( x; }5 P. Y1 F5 j6 P
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]] R$ t& ?. A2 U, D
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ n: j- m9 ^2 Q7 `
3 y9 F2 g, U7 f6 d3 i( g0 b
7 I9 W+ d+ G, z9 ^9 a: x4 a
get-global-proportion
2 i# {7 U8 i( olet trust-value2 |; r, T0 B H4 i
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)( [1 i! q7 _+ _
if(trust-value > trade-trust-value)
+ j. o+ |' E3 a" q5 U3 j" Y$ I3 d[set trust-ok true]
- W5 A9 r- M$ l. Hend0 s7 R2 h, ^3 z
+ K$ G( \' p+ ?4 S7 }% w* ` Eto get-global-proportion
1 ]' b' D# K7 q: w! m1 lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" c2 Y7 {! Q; m
[set global-proportion 0]$ X& @2 N* t# n
[let i 0* m3 J7 c% p9 G4 _1 ~, f; Q
let sum-money 0
3 m" H9 i0 [- T$ ^' nwhile[ i < people]" T) x9 n* i) H2 x1 W% ]
[
: ]# V( f5 Q# F' lif( length (item i
0 x1 H, h; J G6 [5 x( A2 M[trade-record-all] of customer) > 3 )0 o9 D( `) l6 ]
[
, T( J* x* T6 q. |0 I( lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 g: ]0 }: e$ s- t! A]4 S8 H2 n4 H7 K) M' {1 s
]; J8 V& J/ w, e0 |5 M; L4 H
let j 0
; m! e# h" [* Y, G) W0 H- s, Dlet note 04 K3 o' r( l1 Q2 }0 c
while[ j < people]& k* H! s" n/ V& ^9 v3 B' q; b
[
7 O! J$ r) F- j8 i, vif( length (item i- U8 A6 }+ h! t. O
[trade-record-all] of customer) > 3 )
! f0 W' z1 ~) I @, z2 x' W[8 J$ F7 [8 t6 E( U3 I/ g% X
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( f- w; w1 }! @6 J/ w$ ~[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; j% k7 e4 Y0 a% ?$ R[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# n6 l d s. s" P6 i]
4 z: }& Z% e% j8 ~. ^]
8 c2 @& Q7 u6 U/ M" K( W, n" [set global-proportion note$ E# v9 R7 o+ G( q# `/ l& A) z
]) e$ G" K- y; g4 |* h& U. s
end
& ?, I" \) M! u4 d; } `
3 a2 e# ^1 z: q) Oto do-trade
. N' M1 D; S; k/ Z" @, U) d;;这个过程实际上是给双方作出评价的过程' v9 ^: d$ a! i% K4 s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ q1 E* h6 W0 _2 W4 y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
7 `: Z9 S4 C/ y# T* f6 Q4 rset trade-record-current lput(timer) trade-record-current7 F& c) K! H! T9 Y' z O6 ]( h
;;评价时间
" s+ T/ ?1 |" g0 Z: X8 V8 dask myself [
# ]/ F! m$ s4 y" x; B. \update-local-reputation0 {3 j K0 G5 n
set trade-record-current lput([local-reputation] of myself) trade-record-current) B4 |# Q! ?, X4 M4 u
]
4 ?! Z/ m8 f% u& zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# s$ l. o0 z1 k9 ]" u/ I! C$ [
;;将此次交易的记录加入到trade-record-one中
( R& }4 N. w; r4 jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) d) F o" d4 B& k- D* a d u
let note (item 2 trade-record-current )8 e6 Z5 f1 q$ i) V. J+ J
set trade-record-current
! X0 K N% F$ r& ?(replace-item 2 trade-record-current (item 3 trade-record-current))
1 `- o+ j8 t1 s& R) V0 ?. O# _set trade-record-current& D0 I' i2 r+ Y! r+ p
(replace-item 3 trade-record-current note)+ o; p8 e! w3 O
4 U$ q! ^% u6 y, @4 E% h: w4 c: N" C
$ E' ?; S, Q1 I# mask customer [. R: U- q* W0 \1 [9 J4 G0 ~
update-local-reputation
2 M/ T' R3 o$ a9 i: o( rset trade-record-current
* r# J; p( d* i+ b1 r O* ?( _(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 0 V" c2 ^5 h [. O5 P) Y6 ]
]
; d9 _. r# o( e a+ ~' S! P3 n$ o; O% L$ W
0 ^9 n% G1 s( Z. G6 w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 d P6 K, r0 ~9 L5 U8 ?" N+ _) @0 c W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 Q O, e3 J& V;;将此次交易的记录加入到customer的trade-record-all中
2 x! `0 x+ ^+ E( ]) Tend
0 T3 {1 p3 n; ^* w% P1 v3 p; }3 @ j0 e
to update-local-reputation6 o# c l, l8 r7 m
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ i0 y m. r( d$ u3 p' U3 ]$ r
+ F6 g# ?8 o2 v6 w( p: O$ [; p+ r4 O8 Y; O8 _
;;if [trade-record-one-len] of myself > 3
1 f8 C A4 e* ? J8 U" }update-neighbor-total/ s; V1 U' a6 W
;;更新邻居节点的数目,在此进行 S4 q& d8 b0 K" `6 q; _
let i 3; K: ] j4 |$ d5 H! Z
let sum-time 0
# |/ g' |) A( Y; J b" pwhile[i < [trade-record-one-len] of myself]
, k% P, ]1 h6 b" Q( b6 r0 `2 ~$ I[- p7 Q% R: N/ j# U8 L
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( f4 J; j4 j5 x1 I2 O7 E0 f
set i
" N$ A! j X: {" I% F( i + 1)& G' B4 }4 U; ^4 f; ?4 M' s# B
]! m4 D' n8 ]' i: Q
let j 3" ~* o) O+ S# s
let sum-money 0
9 t0 a5 k* P1 o5 U4 v# N8 Hwhile[j < [trade-record-one-len] of myself]- T2 O- t. E* b% |( k
[
M% B1 J% P" ]( o& H7 `! {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)
: D" C+ X; g! E# t( ~6 v S8 X9 nset j0 }- c3 n: D0 C. `$ m; [4 [3 v h) {
( j + 1)
; w6 U+ ?2 H+ C; H5 i]7 k% z, _& c) n
let k 3
1 N9 V( F2 Q C% D- Y' q3 Slet power 0
, r5 m+ m$ X5 ]let local 09 d7 b5 s6 U3 L: y$ Y
while [k <[trade-record-one-len] of myself]
* I9 N9 D r& z. N3 u ]7 ~- I[
8 Q& u/ q1 H6 b/ Y+ D& ^8 Qset 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) ( h# c% S4 F, ~# z6 ~! B2 ~- r
set k (k + 1)2 o( O5 ~# m' q* L; S
]
7 k# Q, T) b! }( Jset [local-reputation] of myself (local). j" v, ?; r. c, d
end. W) N$ E2 ^* b9 k7 \2 p
( O. Q1 |7 F5 Q* U+ o7 X
to update-neighbor-total8 b4 q& r% ]0 Z6 O
/ ~: i! G s) n- x4 M4 j; b' Cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]$ h( ]) r5 s) b. _# C: c9 U6 `
+ E0 Y+ I+ X6 } G& s+ C- R/ S6 P9 v! z7 h% a+ p& A! w( H
end
# m; ^. v/ B [0 g( n0 n
9 v; V' G5 T0 A, l% @- y' \! Bto update-credibility-ijl
F/ o$ L9 ~' b$ d0 u+ o/ ?: z6 o, `3 z8 O0 o5 G4 t# E
;;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。
1 S% B! d! Z5 t$ b$ W% s% m3 A& ulet l 0- N7 F$ C& W2 c/ B3 u. R+ y, r9 z
while[ l < people ]
% h+ \$ L N, U5 [;;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
; Y5 R9 T* S8 q F, `" [[
: | i9 |9 \1 A' W- l; {+ ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: m; t$ N3 `7 i5 n7 nif (trade-record-one-j-l-len > 3)# [4 n; z' h" W) h# s' J
[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. ~4 c f7 R* V# g. X# W3 J
let i 35 }8 z: l; G& |& N) z' E
let sum-time 0
0 t8 W& |- w# cwhile[i < trade-record-one-len]% J5 H) _; S( i& p
[
: z3 Q8 e z' z* _1 Yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' X6 F& _. }8 ^& f4 \; s
set i9 H1 K4 g" X) t4 l. Z, c7 P
( i + 1)
: _" Z$ I3 U! m* h s]
( F" n* t( M1 E. xlet credibility-i-j-l 0
) V( L: E/ f5 k/ `;;i评价(j对jl的评价)
& U9 ]5 U1 d7 Vlet j 35 @( ^+ B+ |9 V
let k 47 N, g$ U& g+ |
while[j < trade-record-one-len]
) |6 p3 w0 n x# x. ?" K7 e" O) V[
* T# D6 C. ~# @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
( k8 K4 p6 Q& m7 D& 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) {5 H" Y6 \3 G6 b( k9 A1 T
set j
. p2 t) ]3 c! j, W' A( j + 1) r5 K6 K' f# Z- \% A
]9 b6 Q4 B* p$ R7 q, e8 Z
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 ))3 @6 X# U4 l' A h) ~, x
4 V& o* b: f7 d' V# h6 ?
. R$ u3 |5 R B: Y2 u
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))1 d% E! f3 A* H1 L
;;及时更新i对l的评价质量的评价
* S3 o- h5 O; b) ?" xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 k& n6 Q7 p+ r1 L7 _" p1 kset l (l + 1)
- s# p) O# {( R4 I1 f3 ^]2 _1 {- B- j1 H: o4 W' O4 t
end7 z5 { Y/ K$ Q+ U9 ~- ]
+ L4 Y% @- i( |, Y: Jto update-credibility-list4 s) |! i8 W0 L) d! [
let i 0# Z* H. A! V M: r% q& K' |) P
while[i < people]
8 h$ g1 \. Z# N9 [% t9 L4 I, t[% c! P3 y: X5 ]! M
let j 08 o8 n4 ^3 e0 _! m& u
let note 0 }8 C! F7 l$ s7 x
let k 0
* Y$ u k$ k. G* a5 ]& F: [;;计作出过评价的邻居节点的数目
; _2 r5 _+ {7 y( Wwhile[j < people]0 _" g; J" Z" X8 X8 g% r' U" Z
[* J. t9 _2 ^/ m3 n2 K8 l
if (item j( [credibility] of turtle (i + 1)) != -1)
! ^8 Q' a! l% Y;;判断是否给本turtle的评价质量做出过评价的节点
. K9 @1 A, d9 e9 U0 A) A0 |+ c[set note (note + item j ([credibility]of turtle (i + 1)))
6 x, J- h1 v$ L3 C( |" V- Z;;*(exp (-(people - 2)))/(people - 2))]
& B+ A( p% q1 _7 K1 {* [6 T+ \$ Lset k (k + 1)
- j. ^9 E3 }7 p" G) n4 n]/ }4 a; B1 D% b! T) B; c1 @. d
set j (j + 1)
* O! L" f% X d) z) B! v" v]8 j {; Y' e; d% r2 ~
set note (note *(exp (- (1 / k)))/ k)" d+ O4 H+ B/ |9 b4 V- H" O& v8 a3 R
set credibility-list (replace-item i credibility-list note)
4 S% S6 L. J# uset i (i + 1)
/ ^9 Y/ Z: N/ O0 Y& J. b]
# s. a$ p, B- w% O0 x! Dend
8 F. t: a9 a3 B7 @2 `: m( O; p* ^1 \8 ?: Q( X* `
to update-global-reputation-list
0 W8 }# K; r; T& ?4 Z1 w" |. Mlet j 0
' _8 m/ @6 O; N3 J% E @while[j < people]
& D8 r( X' J' x c[
6 c9 G% e' V& ^! G* ]let new 03 A2 ?. @3 f2 g; n9 r6 ?) X: q
;;暂存新的一个全局声誉
$ S+ G) _% H$ P6 f! \let i 0
1 q, ?( j0 C; u. t! l3 X2 ~let sum-money 0
- [$ [! p' P2 l: e3 S. _let credibility-money 0 E4 g' v$ W; l: \! u, x
while [i < people]2 R/ d3 r! w! f% D
[
' m0 y3 P6 F- o' w- N. Lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 H5 Y/ r+ W1 S9 K$ \set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 I: z' S; X. b* z+ Uset i (i + 1)
. l/ O% n8 m w9 _: ^]
9 H9 q9 t/ l- k8 rlet k 07 ~' P7 {! L" y+ D% [+ o
let new1 0
$ ~1 O7 x4 P" v- z' ewhile [k < people]
; W, Y, _* ?" H% b* G+ x7 M, W[
: _0 k2 C: l. U. p1 O0 \8 _& Lset 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)1 a. W' B' K& S& y$ K! _% m7 A
set k (k + 1)3 q. [$ ?/ Z. b {: d
]5 X9 Z2 e5 w# o/ I
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 X4 l% p7 D$ x- n# uset global-reputation-list (replace-item j global-reputation-list new)8 r* T, c4 {$ g) F9 g
set j (j + 1), |# T' z7 t0 l1 H2 {
]
' x5 P' P6 H7 ^; E- \1 Lend
' G6 J r& ~ q$ _8 d5 }
. i* ?! |( N8 e$ K- k/ N3 H% q _! T3 H1 y; G/ _' ~
" y7 [! T& B. L' ~' I9 o6 ^to get-color( Q# ?" l* G v
8 K" _7 D, S1 M$ p: k. u2 Z; X0 I
set color blue: {* F" ~- V8 q
end+ ~& Q/ e: k: \+ B
; \/ f( S+ n- B) K1 a( S
to poll-class0 d) h& {! a: ?" z
end
& h& U% T( ^4 ?- k" _5 p% E
4 X8 a, y1 v- ]& I& ]% ]1 s1 pto setup-plot1: [3 w) o, B# l# l
# D+ G! f' E0 h6 g
set-current-plot "Trends-of-Local-reputation"# ~ W* k' w/ ]3 x
* \3 e: c: W; G) a- B& l
set-plot-x-range 0 xmax
9 N- G; _2 o9 J9 q! i( t+ s# J' ^9 c5 f
set-plot-y-range 0.0 ymax: p+ c. N, p% R2 ^' _# G _
end
l! s8 ?' ^& O% k! r9 d( d2 P
2 z' g6 l1 ?6 Z7 x" cto setup-plot23 Y% l7 l# g% H+ _, d
! w: D' p' ?" g4 }3 f: P# cset-current-plot "Trends-of-global-reputation"
: I, P2 h! i, N/ Y- u, y/ X8 C* b9 D) f4 b6 ~0 V; R
set-plot-x-range 0 xmax
5 Z3 h& P9 J) H% h
. h0 H+ o- }- \0 f- r( cset-plot-y-range 0.0 ymax; G( t3 P5 U" o" T& G
end
! i$ z/ V3 S$ z9 ^
+ y( z" c8 o7 p' y9 `; b5 E% y( m# p* Uto setup-plot3
! i0 l) H, }% p# B% m! U7 @
% q6 w! L9 l0 \: k" }set-current-plot "Trends-of-credibility"9 V7 u y3 d1 w$ \' p1 j' M0 ]2 J. P3 o
. L" a+ ~1 P1 |, ?5 mset-plot-x-range 0 xmax
! G' O+ m9 s' @
0 k! y# q& u: h1 f! G1 W- uset-plot-y-range 0.0 ymax z( }2 [6 Y: f% }3 g
end
9 |- [* T. W( B' F# [
: N5 a& |- T0 W+ dto do-plots
7 m' ?+ q. a( C8 D4 d4 g9 Dset-current-plot "Trends-of-Local-reputation"' I3 O$ h9 d. W$ g: Q9 N2 S
set-current-plot-pen "Honest service"0 X9 F4 e7 w# c H; i+ @
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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