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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$ u: G, S, E1 q& F
globals[9 N! }0 E, T& g, @' ^
xmax o' M9 ~3 t. j- U' b$ m {
ymax
! s/ L- x% W3 a7 o% L8 B. d" Jglobal-reputation-list# }' E3 x* a/ v9 {" h4 \% T0 u
$ u5 [" G% T7 ?2 Y# X) U+ g
;;每一个turtle的全局声誉都存在此LIST中
) Q) T8 q! s$ S) P' @9 B# {credibility-list5 N4 ~' I! \5 C8 E6 I" s
;;每一个turtle的评价可信度
* N2 J+ u. Y' n& ?9 ?honest-service
! k* W; q" o% N- nunhonest-service4 A# y1 N' a3 |4 f4 I6 c% P
oscillation' j; J7 _/ a) o( v- u7 q. ~8 d
rand-dynamic- V% i$ N4 W d8 t* A9 [' }
]( `9 J4 M3 r5 ~
) [8 ^5 i2 {9 Q5 `! j" g
turtles-own[& i2 B1 t( f/ w* C" [) x
trade-record-all
, X, R* j5 @' [7 h. u, ]/ @6 V;;a list of lists,由trade-record-one组成
|$ w! C5 \* mtrade-record-one, h) }* V6 q+ @: E
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录5 l8 B8 Z f: l. P" ~4 b0 c/ g
( C5 s" ?& _( _ V; t8 S
;;[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]] U9 V3 ~( |8 s" c
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]4 w, ^+ B$ p& w' f' k$ F; A% h0 x6 B
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: ~) R# r% v2 }, J! l, F
neighbor-total$ k. Z7 B6 a8 y7 d! u2 L2 C, j
;;记录该turtle的邻居节点的数目
# Y# U9 l4 q3 {0 a+ Ftrade-time
" ~/ P* k; u+ u- B;;当前发生交易的turtle的交易时间5 W$ V0 C0 m% Y( t+ p( k' @
appraise-give& c. H; z8 [3 d; G0 H
;;当前发生交易时给出的评价
- \/ P9 h0 a5 ?. \" Q: d3 ]appraise-receive
& J8 U* {; o9 u% C;;当前发生交易时收到的评价* ^$ b2 }9 g4 v+ Z. ?% T/ [
appraise-time- y! b- J n: ?$ h) h4 u
;;当前发生交易时的评价时间
9 Y% ^/ `( w; L- D0 Jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉: ~3 [ v, d" q
trade-times-total* O4 c4 y# ?" G$ `# K% X% F
;;与当前turtle的交易总次数
- k9 k. B. j }; g* a- k! \" vtrade-money-total( T6 R# s- x9 Q" l+ Y
;;与当前turtle的交易总金额3 p9 G6 q: m# A+ E" d0 x3 }
local-reputation7 v I2 Z. N+ @
global-reputation8 j7 y, T8 x% \, s2 x
credibility
0 w# o9 p0 z( T+ c) a;;评价可信度,每次交易后都需要更新& f. }! N% }" ^/ q+ i, n- c
credibility-all4 \8 H7 m) |' _# i/ A
;;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. O; `6 [3 ` F
) T$ S0 f ]0 ^6 ~, d+ K;;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
: R6 A: i( G- j5 ~, e. z. Icredibility-one
( T7 Q |7 ?2 u1 O2 Y: K; w;;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
1 h7 U3 T6 p; e2 Fglobal-proportion
; W0 n# w5 D1 M) Qcustomer
4 u: z* r# r9 j* V. Ncustomer-no& V8 m8 T$ \* v
trust-ok( i& u f8 m, t$ v; m8 j
trade-record-one-len;;trade-record-one的长度% G! H7 i; E" e: c3 I4 L4 G! |! r
]4 V7 `8 _: Q/ D+ h2 ~
. N; H& M, \0 s8 |1 V7 V) w' G6 U;;setup procedure3 Y$ O- m) ]) t# z/ [ }6 ?6 Q6 O
) j R& u- {0 @+ v9 U3 A
to setup
5 y8 Q- @3 L8 T7 p4 X* _/ w1 N" b3 D* h' Z5 G1 }" f
ca
[* \/ L- W+ A( b
" f; z! }# W4 i+ H& kinitialize-settings
+ I O7 O8 C( Y6 R6 [+ ?3 K( j+ ~! c! t0 @& b
crt people [setup-turtles]1 Q9 b* c, W0 l( S, g! z
! p" I1 ]: \2 C# t/ L- w. D2 |
reset-timer
' S; ~; @, M0 f/ D: L
$ m$ K3 j2 n6 wpoll-class
6 j3 x* Y$ a4 g2 I) X) j) ]% U3 l: r( {
setup-plots4 V9 E0 p. C2 Q
8 x. b& W- X b4 ^$ L1 d: s4 G e: Mdo-plots' Z m* ~; C8 v; }7 P3 [( `
end; B6 h* u1 F' c0 J1 D6 b- l7 L
3 N+ b3 o& x) K6 o
to initialize-settings) x# I( i. G) Y0 @7 o
1 e* w- o! q8 b+ t+ \
set global-reputation-list []$ l" ?5 S. S5 v) V: |1 u
4 E, I @8 V- f7 p. @/ c
set credibility-list n-values people [0.5]
4 ^1 b! H$ D* _) \0 o- f {
3 k- I" [% M) F( ~* s$ Q) i: @- aset honest-service 0/ L- b; d% [- I( V+ X- m( O; Z+ \
6 O* C9 n( k {/ W+ X# m
set unhonest-service 02 ?) a! d ]- g1 y
5 A& T: Z/ X+ }1 F. s ]6 i: W3 p. Zset oscillation 0: w' R3 b& K, Q+ B, X
+ i& w" E, I; g. d
set rand-dynamic 07 v1 k$ A0 w3 R2 o2 p2 i
end
- |( w. F5 i2 P1 n# A' i/ Q) D6 H
to setup-turtles i1 a" {8 @# l0 {1 U9 A
set shape "person"
" V1 F9 {( E. esetxy random-xcor random-ycor
$ x8 C* ]5 d- Xset trade-record-one [], J1 [9 W) ^4 B5 w4 n3 g. w2 G2 M% x
4 ^: E% E1 ?3 J0 z$ @" S
set trade-record-all n-values people [(list (? + 1) 0 0)]
3 [" G! i5 y, x1 K! f, y' v. o, W( f) `, B& y7 b, S$ \
set trade-record-current []; y. @6 Z* }& b' N$ ?( c
set credibility-receive [] o. P! `4 }9 ~1 s
set local-reputation 0.5% {, w% w: T: j! x8 O/ V( y) \
set neighbor-total 0/ p5 ?+ d; K& P9 p
set trade-times-total 05 |6 Q! B0 x+ u9 [/ g1 q
set trade-money-total 0
* e/ \! C$ ?$ O; T, H0 W: vset customer nobody) a6 C: r/ E3 \9 {0 @7 G( ~4 ^
set credibility-all n-values people [creat-credibility]" R: ^; e/ ^& q" H
set credibility n-values people [-1], q- f& o6 t1 `/ u; f
get-color, S3 X$ g0 `; K$ z6 _
8 ^; t# q$ o+ w1 p
end' Z/ L- Q& D/ J1 s7 M; [3 q" x3 t
; {1 |2 T) n4 N2 r; p; hto-report creat-credibility6 i5 V8 _" r5 Y/ Y$ B9 M
report n-values people [0.5]3 [0 R/ T* [3 @ m8 _" S
end
7 d/ z8 p3 c2 \: x) U5 G* ?# i
7 x& k% k* y0 I) Q# Oto setup-plots
3 r8 Q8 R' U. H7 R: u: K# i# }6 Q; n% a% t% D3 S+ o
set xmax 30% I- [7 _3 N! a
) Q% X, ]; I6 t9 d* ~/ q2 l9 s& B. {
set ymax 1.0
& p1 c2 w4 l9 Z+ c6 |
! U6 v6 J7 ?. u+ Xclear-all-plots% E; O( ^& P1 I( M" r1 j
. k/ u& a: K/ M5 Wsetup-plot1
0 b/ y. }/ v, X
* y5 N* S: ^3 Z6 x, O& e; o* p4 gsetup-plot2
7 |2 }9 W8 o+ B# y* c5 X3 o# c
( v$ p- J/ }4 @" \: `: _3 }) qsetup-plot38 W% h8 |+ I8 j8 t+ C7 f R9 `
end) Z5 c7 O- B! S+ |/ A3 ]6 [
/ e: K3 J8 [# B& E& b0 ~;;run time procedures' E Y H+ c' T- M: W
8 @8 l- [9 G8 H% |6 y7 j! Z& A% mto go7 I! s' r( \* `( u) t! m
8 u& H+ q; c* I
ask turtles [do-business]4 [' f+ j8 V3 W5 Z
end
* u# I% s! |* Q t0 e* n. w
1 h$ E& g' w# x( |. m5 wto do-business % Y# G7 \* Y0 d9 V% X2 J( P7 x; W
. V6 @3 r5 ~& \# [- h6 R( P: j* B, ?
% i1 U3 a/ W5 r5 m' R; crt random 3607 D; r9 a; W% e+ [ u, Z. w
/ W3 n# }+ x" n9 v3 W
fd 1
* b1 _/ V/ l6 m( e, X0 b2 c
4 `' v2 b3 l0 U* n) b# o# e; |ifelse(other turtles-here != nobody)[/ ]' F) }1 @: S- t1 R: I) H& o
- x. e* D% k. ^: [3 B3 b( @4 y
set customer one-of other turtles-here0 {5 ]/ t; Z, |- e% s* c
6 t. w( a- V8 i
;; set [customer] of customer myself
6 S5 o5 i; V& `( X& W! X7 R+ q( g8 B. _
set [trade-record-one] of self item (([who] of customer) - 1)
& P+ j4 n& c- f( E[trade-record-all]of self0 F0 m N8 |8 `' C
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. l. l! ~, N v/ K
* @# d7 W7 \& j. Q: Yset [trade-record-one] of customer item (([who] of self) - 1)
' }, o2 m$ d/ i2 w: v0 x[trade-record-all]of customer
+ e% M1 o) j! Y8 q: c4 [) I2 C7 `! V6 ^) ^) ^$ V$ \
set [trade-record-one-len] of self length [trade-record-one] of self& h4 M% I- g e
# w! ^/ A0 D1 g+ E4 l% T
set trade-record-current( list (timer) (random money-upper-limit))! C; Z. u; f( [1 J3 \0 r6 p
/ U# D8 j9 g1 k$ n: iask self [do-trust]
1 F; z* m; `/ Y; y+ x) w: }7 g( {;;先求i对j的信任度- B0 G: x. }* o: w$ Q/ ?
0 c) u" \, l* P- cif ([trust-ok] of self)
7 Y" e* N2 d) K9 M% z o9 p0 G5 W# j;;根据i对j的信任度来决定是否与j进行交易[
$ c( k9 \6 o8 p- z" O5 Dask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
' V+ e7 T" Q% [' U7 }. L# a4 d
[0 n5 B9 z& r% f5 Y! ^! k Z
! c5 |" x0 B+ F, d. w3 Ydo-trade
6 o5 `4 S0 B+ w3 b& ~/ c7 Q3 D' o- E- ]9 q& m7 D
update-credibility-ijl
" o3 ~8 H0 l6 m+ @; ^( [" N& B" @' t% D, V( s
update-credibility-list' s' b5 _/ h5 n; ~/ S! V) ~
5 ]8 S- z5 @% t1 Q; V6 }" y4 H
) i [0 f3 U+ ]5 V( O
update-global-reputation-list0 G5 G" \, b/ L# j- W! `* S; z
. a7 }# P$ L" `) Z9 P( j
poll-class% ?2 G; S4 p$ A" D
& O: w4 v {# Z& w
get-color
, A6 P+ R8 B2 }5 F3 o
# P+ I C R. F- ^" H]]0 S) S; U& Z5 x* Y t& x
( l% X' _, ~& Q: O6 d/ G* g! f;;如果所得的信任度满足条件,则进行交易& I! I% a6 k5 `, e- Y' L9 s! x/ R
6 ]8 s0 i F! i# ]; c$ o
[4 b( v$ C5 i4 r* _; ]
% k' `( U5 d' `, Q+ ]9 G3 J
rt random 360. ?2 k* q$ D& r# P- L
1 z/ @& r8 s: X3 }* Z5 i
fd 1
: @7 I* C# u3 T9 w0 n/ T+ r8 ~
1 y! O O- K D7 J]
8 x4 G7 |8 J/ y" q
/ V; \# p9 z' B, [; |end
/ N$ W% B1 p* e: {- U* b; ]1 t, }4 W0 v# G
to do-trust : Y8 `; Q4 ]7 C' ?/ W( w
set trust-ok False0 b( c4 }0 d+ Y; t! I
, @# E' w& p0 X# A' h) n4 l9 p. q7 }% ]
, Y; L- n. `" d+ N$ L+ L; d& ~2 dlet max-trade-times 0# G P( u' D" y- G- F& P+ @
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 a: b$ |8 [3 A/ K0 s- L' Z$ M9 Nlet max-trade-money 0
# `2 y' r( z `/ {; Q3 x4 ^& `foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 W; Z1 w7 ^1 b' X, U/ ?let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ {9 z p' F! i# u% ~, M; v0 A
, `, T/ c* K" H# b4 S
0 |' [/ Q1 F9 a, a2 g4 A) O* h: Xget-global-proportion
4 O- G- u( c. ?8 ?/ b1 S/ ?( @, Wlet trust-value
# a) w' c# ]+ D9 u' qlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)) P2 H# g4 X, u
if(trust-value > trade-trust-value)
4 S# u( S/ f T) ?[set trust-ok true]$ r, t4 I8 Q) Q- D# n( P
end b8 A* U- X- X" _& M1 l% x8 y
# ~! @' O& _+ r9 s, Xto get-global-proportion
- r7 b+ t1 g4 Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). [" \; Q0 D$ |; N' w9 W
[set global-proportion 0]
8 @2 e4 p: F6 X2 b6 t7 {2 Q4 j' V& B[let i 0- }" ]/ O+ L" C
let sum-money 0. @1 h" l B/ }! T0 ?7 _, ?
while[ i < people]8 i1 X' X+ C0 I3 s( z: K/ i- ]
[
u4 S# r7 P1 M( ~% x/ T0 @if( length (item i( B$ Y: P3 p% R3 ?+ C8 S
[trade-record-all] of customer) > 3 )+ D% y7 H! x; Y
[0 d0 J' j! ~/ b% [# t8 g) V2 \
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ P0 T0 q! ^ `8 t9 I, h]
# v3 C j9 E' D) _. [" Q]
" S! j! n& C. h6 E# Xlet j 0
7 o$ p7 ?7 u. U5 t, zlet note 0! Z v+ N% Y, I' j! {
while[ j < people]
* t' d; x- r) j4 }[( z+ S7 M8 N+ f# [5 `8 `- {
if( length (item i. Y0 y' D8 B2 b B
[trade-record-all] of customer) > 3 )0 ]+ }' `" x4 @2 `7 p$ [/ a
[' I! B# g0 c, y' P/ {1 y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 d; r/ l2 r( F- [3 S( H, U4 v
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- V1 l1 L* s; N6 F% e$ i
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 F6 c1 |1 Y6 G2 V2 O8 X
]
1 ]: Q- p+ A* v* k2 l0 s]2 M9 o2 T' b) F- e8 K! g
set global-proportion note
) F7 O: E% C3 }* v7 L& X' ~]
+ J' h* v# X$ X3 Tend
7 t7 w$ q `' P
) c5 u% }1 z; b, E0 ato do-trade
. s; n W7 @) K. z* i0 @# v;;这个过程实际上是给双方作出评价的过程
$ K" u2 o3 R; w3 |1 S& m; b' Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; T Y) d a+ q+ A; A& Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, n& v$ O5 F% i$ C' A U+ f
set trade-record-current lput(timer) trade-record-current" c9 M7 Z+ I9 C) @9 Y l8 u y- [6 p
;;评价时间
5 |3 D' w. k6 M! f& d6 sask myself [
$ I( R7 t% N& R, bupdate-local-reputation
" M2 m' L, [+ `3 pset trade-record-current lput([local-reputation] of myself) trade-record-current
. H$ @2 X$ o% l7 U& P! U# `]
1 e5 @3 ~. B" ~; g: m# Yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself2 T2 V, ]" H* f& k8 O
;;将此次交易的记录加入到trade-record-one中
# m J: V3 ]& {( A* T `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' b/ @! U1 U) d3 n+ tlet note (item 2 trade-record-current )
1 j9 W+ @0 d+ r: x: dset trade-record-current: z. {# r$ {* I1 _5 t" w3 W' T- U2 e
(replace-item 2 trade-record-current (item 3 trade-record-current))
8 C. p) g2 z: n8 L. Z' {set trade-record-current
& ]+ A: K" B1 Q(replace-item 3 trade-record-current note); \1 M! t5 W; L
' E/ C# `& K6 J. Y
+ B+ r8 M: E! Fask customer [7 g' m5 V4 L% s9 z# @
update-local-reputation
2 G% c8 y) M' v- N7 O2 X( hset trade-record-current
! ?3 ]. k0 a# M! J5 m2 m(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 3 P8 h/ T9 @6 s6 m3 c
]' Q! O6 a: Z; l: J6 P
R. s) h; E- J8 b9 j
* ~* {+ M' i7 }) u4 G
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" r! b7 k* ]* u4 w* K9 M
9 Y: V. Z: U" w$ m5 D, ?
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ O( l1 _( s% p+ S;;将此次交易的记录加入到customer的trade-record-all中
5 a- l U+ r, j3 V( _- rend
. a8 E M. b& q+ H% t E5 f8 s
1 \9 A. ~5 g2 u# Jto update-local-reputation
. ]3 |4 H1 t x0 _# ^set [trade-record-one-len] of myself length [trade-record-one] of myself
7 T5 o7 O+ v' Y; [$ v
( D4 S# n' w$ g
8 V: B+ C$ \, N( D$ N;;if [trade-record-one-len] of myself > 3 0 a1 O$ ]4 c% O3 _5 P
update-neighbor-total
: {8 M; v: o& W e9 x;;更新邻居节点的数目,在此进行% P% b, |( ^, ~! r0 ^( s% Q
let i 3
$ |5 R8 E5 @2 C6 Clet sum-time 04 q: D8 _4 A% P7 q7 I
while[i < [trade-record-one-len] of myself]
m' N# K0 K; E, N' {" H5 H[4 d+ }0 q, }: \% W6 T1 l" q, ]
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), o5 w' \+ d% S f$ o' F. L ]6 ~
set i2 h" u- M7 ]. P7 Z% S5 w' p# L7 Q
( i + 1)
. U; n: A2 `4 \( c# r( g! |, ?]$ O" C# D/ Q& V# g
let j 3
C0 I$ H: l& B5 b- B, [+ y3 J6 olet sum-money 04 c. \; X7 t6 V% z5 i* d7 N# F4 N- _6 \
while[j < [trade-record-one-len] of myself]4 b1 g: f* q# D4 k
[* \' Q" P/ [' K' }- {: O- l! X3 }
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)
3 V; O8 D1 T% { [5 t; fset j6 S9 e. J( P7 k0 q
( j + 1)% T9 G# a2 H" K2 m
]
$ T2 ~9 b7 t9 C% z! @- Vlet k 36 N% Y. g9 I" ~, T
let power 06 ?- L) W6 `1 }1 I
let local 0
- j) B' v2 |. M# T4 Xwhile [k <[trade-record-one-len] of myself]
9 v6 p) G8 F, _: y[( k9 C$ T: u1 R( `' t
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)
: M# R% b4 Q( w# o/ v; Oset k (k + 1)7 N6 n: {* O7 f, m9 t5 Z
]" R2 s9 p, G. _3 i
set [local-reputation] of myself (local)
! f* q. L! H, c! T+ z$ a5 I5 Y8 L, |end5 S0 k. G- h) \& F- S9 u3 h; n Y
, p0 i5 `" m; s5 @4 M9 N
to update-neighbor-total9 m$ b' X- K) i/ ?) N$ n3 z1 e& f# C
) J& n; C$ ~" ]/ {. T3 ^) rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 n f2 P+ g+ s ~4 w
- x2 u5 c/ k. E9 L7 D1 J
5 {; R: F% o3 @; Kend! L8 u$ p% o# X4 Q. o* E( p* k- v
7 b5 E9 S: |5 c& t5 x" uto update-credibility-ijl + \: J$ f) i7 B1 i. b
# l: N" h+ H3 m" W;;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。3 [2 x3 z3 s6 C; O3 b4 B
let l 01 X6 D8 {) E+ f+ C0 L
while[ l < people ]$ @! W5 i5 q# g6 B7 q4 t4 ?
;;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: j- f, G* ^3 q5 A
[& [& h0 d @0 ?$ t5 E {0 ?$ g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 O0 B$ Q6 A7 y
if (trade-record-one-j-l-len > 3)
/ ?3 h7 W$ |0 o8 v[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
' [: |" P: A8 ]( \& ?" Hlet i 3
9 o* T/ N1 L- m( Flet sum-time 0
# u( J" e$ |2 O5 W' Kwhile[i < trade-record-one-len]
6 X; y8 k( d1 a! \ T[1 n* }0 o+ @5 e; j
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); R" [; w f4 a% W! E
set i" `6 r8 f% D3 r1 L o( o
( i + 1): Q1 \' K* o9 K, u; S/ \
]
. Y l P* H4 R' b: m8 Z8 _1 Ulet credibility-i-j-l 0# r/ C1 ^* k( n) @* R- \; r, L
;;i评价(j对jl的评价)" p" j) o# j& E
let j 36 ?# J7 Z8 n8 A) X; r+ J
let k 4
+ G3 O) d# Y9 I U, G$ n. p# Vwhile[j < trade-record-one-len]
! ~0 u2 [6 j5 M* f1 T3 r[
6 I6 n% @ i! X* k R* p5 lwhile [((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
% D5 g6 f! t2 O) bset 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)
! ]9 T3 L& O/ q5 B! P4 q/ w' gset j& r( o: R% Z* Q
( j + 1)
/ t9 R& @: U0 h2 O( B]
8 [7 Q% Q: y, q" z0 |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 ))
5 w5 V8 { v9 e$ g/ e- [, O: D( J* D/ S% ~4 @ R
7 u+ o! Y5 [2 N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* l8 V( S0 T& @5 B! d;;及时更新i对l的评价质量的评价
7 L+ {" X$ n8 S/ h" b; D; m$ ]set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 j- \/ k: `( O
set l (l + 1)6 `0 @2 {6 z0 r0 S, ?
]
' h# u3 k/ C! l! R5 S$ Kend
- c/ ^. Q. N; q# o* W0 ~; `0 ]
to update-credibility-list7 h' D9 n6 k( q! p3 @$ U
let i 0! S. F" [! z0 a% I$ r/ y6 Q, O
while[i < people]! R8 d/ A8 a4 C( w" z& r
[
& ^2 @: r7 v- s- I6 h7 }* o& qlet j 0
' `2 s b) y e [let note 01 T: Q- r' L% \+ F" y/ R* ^
let k 0$ Q8 v8 h6 |" c% d
;;计作出过评价的邻居节点的数目' {6 Z0 C* S0 D) h
while[j < people]
/ F1 m/ q# \' X/ x7 F* e[$ B8 y$ }6 M+ D/ j6 O
if (item j( [credibility] of turtle (i + 1)) != -1)
; o" v( L, i2 G0 i' M2 j+ b' K;;判断是否给本turtle的评价质量做出过评价的节点
7 {' x! b9 p+ s) S! r& S9 h[set note (note + item j ([credibility]of turtle (i + 1))); F+ c: a4 v2 D$ C
;;*(exp (-(people - 2)))/(people - 2))]
3 f- H- Q/ k: W3 dset k (k + 1)1 g+ Y0 ]. W- Z8 S0 c
]
6 }& k. r& H% E$ b8 D: wset j (j + 1)) H# l4 F( j/ m
]
, |2 r8 T0 S7 _set note (note *(exp (- (1 / k)))/ k)3 H8 V: i4 y, ?7 E3 q. X
set credibility-list (replace-item i credibility-list note)3 j! `( e% I0 K, X Q. h
set i (i + 1)' A7 S6 W, c# Y4 Q S
]0 O# K) y' F9 n
end
@1 ^9 ]: a7 p. s: o% i
. T+ j+ W+ K- l9 K/ d# M. E3 v; |3 Rto update-global-reputation-list
6 Y3 O, o( b$ {9 X4 blet j 0
( j$ l1 u6 C m# z1 Kwhile[j < people]+ ?7 f6 U1 o' k. ~" N4 Q' i
[
: V, R, b7 Z0 @) M1 Jlet new 0
/ z6 ~$ Q) }& L+ D [ ]9 j% l;;暂存新的一个全局声誉
4 G% F8 L4 T' S( Elet i 0- l; ?' `5 w" F1 J' G$ U4 n
let sum-money 0: Z& @ g1 Q3 _2 X5 Q2 I. p
let credibility-money 0
- d" t6 K. j+ b2 v' |* k+ H1 Ywhile [i < people]: Q$ {& x4 x" I+ s, w
[$ c1 y+ M. O( K7 D+ i% Y6 F
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 D+ F9 W7 J) ^2 ` X7 W6 A! B6 zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
: q( J' p+ T% Tset i (i + 1)
" U! |; r% R* U( v0 L+ b]# r8 P i- h7 S4 U
let k 00 H" m9 D/ `5 m F: p
let new1 0
% }6 X9 K. q, L+ ~. Qwhile [k < people]; h7 v% e. P x. f+ g6 g5 W7 T
[7 F7 y; p7 @% j: c' \* o8 \/ Y
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)
2 y- k" Z3 d# L! r/ i3 Fset k (k + 1); h* X" ^1 W$ ]4 R$ w
]
9 o: y+ _" G* Z2 |' }1 rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + }( p7 }# L' d3 Z6 Y
set global-reputation-list (replace-item j global-reputation-list new)/ N, n/ V# _% a8 a
set j (j + 1)
/ A3 s- _2 X6 G0 k8 W3 S- [- K6 P]" `" V: I0 A+ x5 n/ h
end
, V7 f' B! V7 K4 G1 @1 i% i$ o5 z% H- E/ t) v3 r: R
' q- L& n- `& C! N# s0 I: O g
{+ n8 {" w* n5 c2 v4 v- ^6 dto get-color5 P0 z. ~& l4 S3 J; M7 {* y
; A" C& J7 i% z
set color blue( _* K4 F$ l6 D7 O n3 b) x( N
end
1 i9 ?6 ]4 n( P3 X& h4 w( r2 h6 X, J( H7 ~3 J: u& Q
to poll-class1 j/ ]+ j& H" t2 ^ T9 @6 \
end6 o: u- L% A3 T. y( }5 i
3 D. m( z; t# `to setup-plot16 @0 z9 g" X% ^' v0 D
# k8 F. K( x2 }- k) g% S
set-current-plot "Trends-of-Local-reputation"
& I: ^' c: _3 F; e! [* ~ a% E# R; Z1 |, M4 y
set-plot-x-range 0 xmax& f" q# d2 `% A) |
2 H' |" T* \/ c3 B& a1 `! a, b2 W0 qset-plot-y-range 0.0 ymax
, M- \- J8 j2 q( t* z( Eend* o0 {2 F1 l% ^# O/ T1 _9 U- s5 L
# y' [/ z6 @, {/ j O; bto setup-plot2
5 g" t4 K5 ~* L$ d
% b% k4 J/ l$ }# g! iset-current-plot "Trends-of-global-reputation"
' z3 }5 O4 C8 b: M/ F
8 V! S; H3 u4 B& X( cset-plot-x-range 0 xmax+ H* ?6 [2 E4 `" M
/ M) @6 j2 M+ Z6 G# R% |$ S- r" V5 K
set-plot-y-range 0.0 ymax
* k; ?. e7 u4 e O. {& _! t( F9 S2 Qend( X% O$ ^+ ~1 i- [/ B+ X
( L" {0 }4 h+ J8 I: n5 nto setup-plot3; m& e! K. V8 a0 h# R- d6 ~
7 j1 @& _9 N! H( g* g
set-current-plot "Trends-of-credibility"
$ t' P4 W5 i. g: b9 {" b; j2 ~0 f9 Z4 v
set-plot-x-range 0 xmax. x" j& z; }8 ^5 C8 Q# O& E1 t
, v* @# k1 m4 }& T. Q
set-plot-y-range 0.0 ymax
- ], e/ X2 {% _* Q0 e; Eend
9 _+ Q$ `" K2 V: C0 y% u2 e
! ]% {; q3 a$ Jto do-plots5 k* i. v9 v" \
set-current-plot "Trends-of-Local-reputation"' \5 H: a Y1 s
set-current-plot-pen "Honest service"' a7 I% R& w& u9 V( z
end
! u2 B4 {: _0 Q1 e
8 t% }% r9 s9 D[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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