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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$ N% M. ?3 r; t
globals[- L" { C$ P1 s8 H4 X! R
xmax( y+ ?$ Z- J3 e9 _! j! {/ C% I' e
ymax) ~. k6 y/ v2 H6 s. f3 P; L
global-reputation-list
+ [& n- L4 I, O4 Q( \
9 n2 z* a1 }6 P;;每一个turtle的全局声誉都存在此LIST中
; o. J# C5 v$ r6 |- g2 {4 Fcredibility-list
0 H; P, L0 D+ e( n- q; |: x; q5 {6 U;;每一个turtle的评价可信度
. i& @' g8 m3 r% F0 khonest-service
! {. C* a* y0 _- H1 @unhonest-service/ t# ~3 ]( q( p7 {- H
oscillation# ^: A. D7 i. e1 z$ V2 p
rand-dynamic
6 \& o" e; c. a( u3 i% h]8 { q4 l( c, o1 G+ k9 s- {$ G
6 R# c: v6 C& Fturtles-own[: Y: J+ ^. \9 R7 }5 s" x$ \
trade-record-all/ N4 H+ m+ Y6 i! O% y* J
;;a list of lists,由trade-record-one组成1 m$ C9 i9 {' _; _+ T1 }- C
trade-record-one+ o$ y7 R: h7 k2 z* r: 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
8 O i* l0 q( w2 H
$ }3 c$ X6 V* g. O; m8 ];;[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]]
1 ]& t4 Q& z3 Y+ Strade-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 V& M3 Y. g: `8 @$ L; d2 `! p5 Ccredibility-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
b; d" `' b3 tneighbor-total/ {0 e2 R3 n3 W
;;记录该turtle的邻居节点的数目
9 v9 P9 R" j) Z8 ^/ {4 Ktrade-time
6 d- J( ] L6 N- G" u' p;;当前发生交易的turtle的交易时间
3 H% i2 x6 @5 Zappraise-give
3 F# w4 y/ o) y7 M/ o/ p. n;;当前发生交易时给出的评价
$ d. h# J; R1 ~2 k* q6 Nappraise-receive
, P) s& ?3 W* A6 h. _5 q;;当前发生交易时收到的评价2 ?) A( [; F# J
appraise-time
2 f% g* @8 ?9 `2 V;;当前发生交易时的评价时间
' E$ \" @) Y( S7 D glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉5 k# b& p2 E5 P3 f) ]7 ~2 P
trade-times-total Y( ?9 z& v" `6 g
;;与当前turtle的交易总次数
! @1 T" a! a3 _: d1 G# e$ k" y. @trade-money-total
9 g9 J) P4 H7 Z4 x/ _5 m1 O;;与当前turtle的交易总金额
9 ]6 L* d: S2 \5 Nlocal-reputation" x# D% v" \7 S/ [; R% p$ J+ }. ~- p
global-reputation
9 r! D, l4 `6 Vcredibility
( e' R9 o) a. h5 k* s! d;;评价可信度,每次交易后都需要更新5 i7 a+ I) J) H
credibility-all9 o4 m, r8 C" X7 X5 p: V- h- o$ 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* U6 n/ C$ E) X
: [2 k O; W$ x
;;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
, s- \+ ]$ z$ e5 Q3 \' Ocredibility-one
% Y! F0 ]% I$ K;;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' U8 d3 q5 X6 s6 C
global-proportion* o# H: K7 V) R( K, a9 M% J
customer6 q0 u! I& ?! K8 K3 H) Z6 O
customer-no+ r: O' x$ a3 w
trust-ok
% y; b3 p+ o' O9 o. T- F8 Ztrade-record-one-len;;trade-record-one的长度
9 ?! f6 v6 |+ D; v]+ v1 u/ L, ~8 b6 I! ]* r
# o/ g, u+ Q5 K! l
;;setup procedure9 q; ?$ a- v+ |2 [2 i) ?
2 I; k; \- J% e, |3 f, L
to setup) \. {; S: o- z: O0 B: E
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initialize-settings
7 }* f, A8 ^* Z
$ r, H& v9 s% W% L1 Zcrt people [setup-turtles]: @3 @4 d) \5 @8 T) a- d
9 p J! Y7 T1 \" X* O8 i4 H
reset-timer8 L3 w- D& C# O) ]$ [
' }/ V& O3 b: |) kpoll-class! B' j9 {; F9 f1 p/ e. ]% k
( B" q6 c( R% e* O! W& C
setup-plots5 @ ]! `+ X6 r+ ^* @* I9 }! ]5 i
3 ]6 Q: }7 s+ H) Cdo-plots
- y' o: _5 S) L. T! k- e4 V2 |end$ ~0 W% d/ `$ |' B3 c& e
0 @! C8 `8 ]4 [( }to initialize-settings& f! S9 g4 K2 Y1 n% b
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set global-reputation-list []
5 `/ q. f7 x. o, q" B2 F/ d( N# r s
set credibility-list n-values people [0.5]& D4 \6 T& j6 [6 ~2 T
1 U; Y/ g# @1 g1 r6 e: g0 nset honest-service 01 ]+ ]* r. ?8 ?, }9 y
0 v. I) A- G% ?( Rset unhonest-service 0+ Q) K" b: C5 |) I( E6 H5 f" H
: v" W% V& `! M; E- i* Tset oscillation 0
" b4 r+ @& O! o( ~/ U% V
9 [" T" P. w! zset rand-dynamic 0% G4 P; ^. W# X
end
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* j( C* W ]) J1 H8 ~1 sto setup-turtles
' {% _; n# X/ T; R( ^6 z4 A7 U5 Aset shape "person"5 f+ x# q1 y: s
setxy random-xcor random-ycor! b" }+ ]. y3 g& ]
set trade-record-one []* q3 q, D; i) ^ b/ B
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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. q: t) q9 B p# Q9 }+ A( C2 vset trade-record-current []$ U& \- ~, ]. D" n6 ?" s
set credibility-receive []& Y' J$ A) q! _# T8 M! G( k
set local-reputation 0.5! Q% k; a) O) l+ }% G" Q
set neighbor-total 0
6 S6 q2 v% c& F5 \, Y- nset trade-times-total 0
I7 p6 y! M- T. l7 iset trade-money-total 0$ D3 W4 R, W4 O! J0 @$ x' H6 R0 F
set customer nobody. E c3 V/ n/ {: ?' m
set credibility-all n-values people [creat-credibility]% g# k; j9 s. g
set credibility n-values people [-1]
0 U5 O8 f; B9 @. r/ e: v! n% cget-color! @1 q' H1 h/ f/ H! m
6 x! R9 S. w1 A/ |end2 [- {$ a; h* [2 @9 q% C* n4 t
, k& ?. h$ ?! B2 V2 J6 ~
to-report creat-credibility
/ H4 T# y* P, g4 A( R, e9 y7 sreport n-values people [0.5]
" B c8 j8 b6 h& N" |( [3 ?end
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to setup-plots/ C+ t, D, m, i: Q( q8 @) u$ [
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set xmax 30+ O( v3 M$ W# ]6 l) _- ~
: P. p {4 R$ V5 K9 Zset ymax 1.0) l% c; \/ S$ l/ u) z6 N
3 h0 E# f$ Z; N2 E8 c8 hclear-all-plots
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, x3 @8 U6 C) U4 [0 [setup-plot1& n3 w9 w7 ~% M
7 v+ @4 v3 ~' ^1 J: ~- hsetup-plot2
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setup-plot3' x' _, ^ Y- \0 W9 E$ N4 R
end& U1 e+ `& B# i, q3 a) g% j7 F X
/ K4 _7 T R/ Q: K7 y
;;run time procedures
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& e# o/ _' R2 c3 O. A2 Xto go
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ask turtles [do-business]9 Y6 g& }# I L6 b& k
end2 b+ `4 v8 n2 Y% \$ o: w2 h* E7 O
7 t1 J; k1 f$ ~& C: p1 u
to do-business
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rt random 360
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6 H4 c4 Z$ Z, U, ?) N% _1 Ofd 1* [6 t% r# e% v1 y+ ?2 x7 _- f
6 f/ N) P9 @" z y2 d5 p' lifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself, c% F: |6 j5 }; \% L0 O
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set [trade-record-one] of self item (([who] of customer) - 1)" ], H4 w1 ?/ {9 X% u, w
[trade-record-all]of self
) q5 Z* ?) n1 X;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ {; C- y K- P9 Z3 k
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set [trade-record-one] of customer item (([who] of self) - 1)8 f5 R& |0 W! L- S8 L
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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, @. ^! w4 s: g5 m! S9 ]set trade-record-current( list (timer) (random money-upper-limit))0 U$ ^8 y' y$ w2 F+ f" O
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ask self [do-trust]2 Y1 g5 Q4 w& {1 U
;;先求i对j的信任度
q5 E1 [. P" {
9 r8 J* n0 a4 c! y' B" C kif ([trust-ok] of self)
& y- ]& a' d, T9 z;;根据i对j的信任度来决定是否与j进行交易[
: U$ {. A* W9 Q/ lask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
+ ? g: o$ w. o4 g+ O# p; a( ] q' U
do-trade: K, v2 c4 L: [ d5 h" D4 s( K! N
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update-credibility-ijl
+ \6 x+ N# g' `* x. _
" q" u" d% O5 Q3 |) Supdate-credibility-list9 s8 s6 }2 ^' r# \! h5 c
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/ H; \/ t& _- e0 i) Qupdate-global-reputation-list; P6 b, E2 ?# @8 L& _
1 d% [, J# T/ k3 A, V. r
poll-class
+ w. V, r) [8 N& v2 P5 L
7 D% D* y* Z, i$ i2 a' e- J% Yget-color% ]9 F( I* h7 E+ z& {' p
$ G! e7 J8 U9 T9 [- M8 q8 D* e
]]
~ u* z% b# m2 o8 o% u5 Y/ F7 K$ {% z5 ^' ]' P U/ T
;;如果所得的信任度满足条件,则进行交易
: Z% i/ I: i- P4 C1 G' H
" c* y6 P( f$ V* b6 P# q; z[# }/ B# d5 m$ D J' k. U8 K* B* A
/ p: e5 V/ X+ E6 [; `rt random 360
6 A6 Y) y# o/ @- r3 [& @. v9 n3 N4 ]$ ?# M& y/ F$ u1 c2 q7 w) X9 X
fd 1
( t; _& s; ^6 ~7 k) d3 \
6 \! @1 a' Z' y" u# C, E( G]$ |1 A# y9 ^0 v4 i0 c7 n' o2 X
6 o" ^# V6 l2 ^, L0 Uend
5 P) c, m$ F' Q8 ~0 u
- w, N/ Q9 {, ]" F% G/ {to do-trust
3 I( A0 s; M. T! X2 Zset trust-ok False
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let max-trade-times 0) r4 W' \0 j8 v4 l0 e6 s/ _: H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], Y0 ]" m! C: p, i! b6 d1 ]
let max-trade-money 0$ {7 R0 P; U3 N9 a) ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], p; g9 |4 S& M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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$ W; n {. F7 J, X) g; ]get-global-proportion9 n) A4 U7 M3 ^' W
let trust-value
6 M; h9 b+ N7 c% C+ ?/ jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
" `9 b* p/ ~! y) Dif(trust-value > trade-trust-value)
) M* L3 O) E+ J' s! ?[set trust-ok true]/ \7 E0 _- z/ v [( P
end$ l9 F% t( O1 t( M+ N
" m. e z& J- p( m7 B
to get-global-proportion
, j6 o& D4 s& ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 ^/ `1 d8 R. w$ o2 l[set global-proportion 0]
8 K' ?, G# e' r! j[let i 07 v W9 f; K. C# W# ^
let sum-money 0
4 H* i" n1 ?9 T6 ywhile[ i < people]
8 A8 w3 C# l# ?[
[- [9 n$ W: K3 a1 E/ ]7 @& xif( length (item i( a9 [2 B* f$ ~9 }
[trade-record-all] of customer) > 3 )
9 }+ w) O( f, ?! B[
& H( o, `: X) m# dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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let j 0) V+ \: p; L4 r' F# J* I$ p" K
let note 0
, Z6 K" Y$ N" t5 K( p) X2 ?5 fwhile[ j < people]
& z0 ]: J3 ^; y' i9 P! J[
* v' |1 ?# h' _- lif( length (item i# Q( \7 A7 ^2 `( W
[trade-record-all] of customer) > 3 )4 M1 l! g* H/ K9 B: m, F
[
% H& W* s5 c8 c, G2 C: m' xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) X% W6 `; Q u; c. z4 Y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: E0 R- h% G. L/ C L- l! ^
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" o+ |: _; B! B6 K9 M% G]. |" D& E( ?0 N! w1 }2 y3 c: O4 ^
]- `6 ~8 L3 E/ P0 Q: q: c
set global-proportion note
% @' }: f. T& i+ C, {( F]
$ v& d r6 W! tend
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' m/ y$ B8 S7 l$ F. ?to do-trade
; @4 W0 j3 Y0 t) r& _3 O;;这个过程实际上是给双方作出评价的过程
: f' B6 T: K: ~ @( n1 U1 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 q L; A$ r! j2 [3 V4 bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) i& _- ~9 D7 ]6 x! Wset trade-record-current lput(timer) trade-record-current
) v7 [* R* G$ I1 z3 o6 u" X;;评价时间
& }# X; B/ ?- e2 D, {- J+ r; g& Jask myself [
4 o0 J# O3 H* M- S9 C. b8 _4 q2 Cupdate-local-reputation1 T* |5 A* v: Q8 q9 r
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* U1 I- x6 B9 ~. I/ X% y
;;将此次交易的记录加入到trade-record-one中$ I- x: U& H2 f( c, n4 R0 p2 [
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) i8 x2 K9 H0 D
let note (item 2 trade-record-current ): k P; I' }9 T: }% {. d3 S, }5 x
set trade-record-current% L: c) w1 R* j. Z2 k
(replace-item 2 trade-record-current (item 3 trade-record-current))! a. `. A0 `. i! K
set trade-record-current: `. }' F q( L
(replace-item 3 trade-record-current note)' D! Q/ E! x. M0 h$ n2 f: R! O
8 ^5 [) e! h, b0 M k" N- A* W" x) U) X' P; J
ask customer [0 j0 ]* F( _; r) q4 S0 t: W* A
update-local-reputation# ]( O. V1 y$ J8 C6 l1 E# G+ Y& k
set trade-record-current5 Q4 p) ^% E, ~% L
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 @8 q. N$ U- T
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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: b2 M+ u" F5 f/ L+ m" cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! f4 S( i3 l+ L: i& f B+ O: D
;;将此次交易的记录加入到customer的trade-record-all中! X' F; @5 u+ L, Y$ F. b+ W
end
( t- H/ U9 y1 U1 ]
& f3 f/ r& w$ O |7 }to update-local-reputation
9 j; {1 D, L8 ~9 f/ `% s/ Yset [trade-record-one-len] of myself length [trade-record-one] of myself) h, \$ T: u- {
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$ b% @! z7 J: M
;;if [trade-record-one-len] of myself > 3 7 p+ r* ]' Z! f. a3 B8 x( I
update-neighbor-total
! ~' S" b2 T2 w. r- @; v2 k; B6 z;;更新邻居节点的数目,在此进行
8 {" q2 z6 k* I1 w( N$ S0 p2 t* c( ~let i 3) p+ x, A$ S. ~; C, v' Z
let sum-time 0$ r; h- ?, j" o* h Z" X( s# a
while[i < [trade-record-one-len] of myself]' Y2 r& v8 v; ], ~6 {
[: N3 v [: X: }9 i$ n/ h
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' {0 h- F8 S7 Q+ Oset i
5 k" S6 C: s( i- Y( i + 1)
4 G- x' \) E! ^/ ]]8 P+ H$ q% q. B+ {
let j 3* p5 u8 @; `$ g0 f- Q- {
let sum-money 0
~% s F* ]( ^! Y# ]5 P% [5 I1 Swhile[j < [trade-record-one-len] of myself]$ A: H) N* ^0 _
[) G& W2 P6 }3 @8 m, b
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)
" f2 k' j, r$ Sset j: U* n# ?+ H1 L0 [: I
( j + 1)* o' _% O) Z4 m' V! ^
]: A% M$ z: ], ]8 v$ G( S
let k 3
4 v z+ O: h; L- r Dlet power 04 ~/ Y" y7 p9 b' a) h5 Q
let local 0/ Q: `, p% {: e8 {# b) F8 W( m" Q
while [k <[trade-record-one-len] of myself]
* P" n! M) \, M/ b; m0 z5 b y[
! h; n$ X! {3 J. |) k- |' L4 Rset 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) 8 b& c# g$ l& z% X1 @0 F) `
set k (k + 1)
( [" @$ Q- \( A]
( W) c# @1 u1 t5 Z' rset [local-reputation] of myself (local)% B) P7 @8 H4 ~$ f* `. o3 j
end
1 C. j2 c1 o; Y1 A( l/ L z
) n3 {1 X; d) O! Yto update-neighbor-total% g; [9 Q6 W9 b( ~7 k9 ]# d: {
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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# k0 x9 a9 G! g- Gend
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7 o. f: N0 ?; W. ?2 g" Pto 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。0 i5 y! G5 q9 C* T# T3 K1 |* _' o
let l 0
! l' x* s+ K8 `$ wwhile[ l < people ]! U& [' Y7 l- l
;;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0 z3 F; e/ K2 P/ R0 d# [
[$ L" r0 F2 U @% e; Z
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; N' G! j+ W( L0 `: N5 Gif (trade-record-one-j-l-len > 3)& C; G) _; U7 O2 }
[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-one8 @! a5 Z* p: K
let i 3
) I7 O! ?: W4 R% K7 Glet sum-time 0 P, `6 y: E+ a* h, [7 C: N
while[i < trade-record-one-len]
% o) s. B/ a) |! O6 Y% s[
7 Y- J) O$ s7 L, b' ]set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )0 H6 e* p2 G- _+ R% b/ |4 t
set i m: h$ A l$ [2 M% T
( i + 1)% y5 v }* H$ E3 p% N/ o0 J
]: O( U* K" Q9 F% D V0 s
let credibility-i-j-l 0* @# k, M+ o& P' O* R/ B
;;i评价(j对jl的评价)
" x3 b2 ^3 {6 elet j 3
8 D+ i8 ~: y) |, g" a/ hlet k 4
' ^* Y: w; B+ q" ]while[j < trade-record-one-len]) n/ ?" A0 X, N: A. Z5 G
[% V9 `, N. P) z3 r
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
: e3 c3 \# b! t( f0 X& J4 G/ fset 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)7 _. }1 m, T" l; c, Y3 V
set j
7 z* ~0 c: J, P) f9 A6 T7 f( j + 1). }) A- i$ S4 {7 S- z
]9 R3 n$ `# D0 w5 d) l+ K- T1 a( S
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 ))
) c. C* l. X( L W6 x) N4 p( E# X1 c2 a
' |9 F" G- g9 H$ Y3 B+ nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 f1 x2 f, ^/ L9 E! t
;;及时更新i对l的评价质量的评价
, `% w: j8 K, }# O5 L5 Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ h* {7 u1 c) ~& P0 o- y/ X3 Y ~set l (l + 1)
: F7 F1 v' M- l3 z3 R3 s. T: D]
* c6 U; v: i; g5 N8 W5 nend7 P* w1 W7 v; U$ N+ Q: {+ [
6 K. n' Y/ \: p6 }2 Y; w
to update-credibility-list
9 S- V- G: H5 B+ v" |& q. N2 M. G$ elet i 05 s H0 I" \! C, T5 P! H( X. _8 ^' Y% y
while[i < people]
9 S) E1 \4 ?3 m2 v2 u& n[
7 [9 n9 K+ e, dlet j 0; Y. M) H2 O9 F1 E& y
let note 05 Z2 Z9 c1 A& S2 p9 q
let k 0; e# R3 ^- ?; Z2 S' `. w( H
;;计作出过评价的邻居节点的数目
9 i* C7 z0 Z7 b% \! P. }while[j < people]
) V9 k4 E" n9 a( O+ [' r[
2 D; ^; A1 o7 uif (item j( [credibility] of turtle (i + 1)) != -1)8 ~6 U- _9 v( s0 t
;;判断是否给本turtle的评价质量做出过评价的节点
; V; T. L1 ~% N( f+ v[set note (note + item j ([credibility]of turtle (i + 1)))
2 `0 G2 C6 \- d1 B;;*(exp (-(people - 2)))/(people - 2))]
+ Q, X; ^* e1 p0 ?1 U$ _9 pset k (k + 1)
" q8 U* G3 `: B], Q$ P5 p2 I% i' `% ?+ e
set j (j + 1)* R& e' p; v0 Q. L# {: x
]1 A+ c6 N! \# s; [5 e: ]' M a
set note (note *(exp (- (1 / k)))/ k)! v4 H: q( @6 H7 Y7 t
set credibility-list (replace-item i credibility-list note)
) E; k5 b4 c1 M/ W3 lset i (i + 1)5 o3 f9 ]+ T# F6 Z
]0 y4 \$ O, c) K* R! @
end
1 @) ]- m- P7 |0 X, h/ r
/ y' ^+ r: F- X# E" w: y( o t5 Q: Lto update-global-reputation-list
% q/ K' J! `- X9 flet j 0/ G& M: p# G' `
while[j < people]
; {- R& P! z. B$ \) D& `[
7 l/ A5 _) m9 [6 D: T4 S- t; M2 h) jlet new 0
: ]& K9 e3 X, j8 g. s;;暂存新的一个全局声誉( e8 c2 B6 ?, m% |) q9 Y3 _
let i 0
# |2 [4 ~( R4 P3 R( tlet sum-money 0
5 Z0 s! |: q. {/ Elet credibility-money 0
$ h0 {& _" x$ ]2 _0 Kwhile [i < people]
. s4 ?- X5 |7 n: o8 G[
+ o$ Q/ I/ k: B7 i" ^# x7 z1 iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 n+ S5 l& S3 x2 t0 D4 L
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
: |1 Q5 I2 L& `0 ^set i (i + 1)
) ]; N# F/ p- [* m4 i9 v]
5 I S1 {- v2 g9 i& c0 t" elet k 05 E, g& W/ ?" p
let new1 0
8 k4 z0 t; X4 F. ~9 c3 c! @while [k < people]
+ b7 o% z. z3 q% B b' V, Z[* V$ K, U4 g6 h6 r$ _
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)8 U0 w, x1 l) Z C$ K" q( L5 u6 b
set k (k + 1)
+ Z. B- Z" i0 v) C" u8 v]2 ] X6 W$ y) Q5 B6 `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : f% n* I! F8 n' I" w% e* N! ~3 G
set global-reputation-list (replace-item j global-reputation-list new)
: O" v* S- f+ j4 G# Bset j (j + 1)
; L# T) s; i& p3 c4 o1 x: c; v]
1 `# s! w# b3 N, Yend
( w# K& J$ J. m9 w
) U) i: ~+ M0 e4 t$ ?2 y
5 y% ^: p2 c3 ]( P d l! p0 l; k5 o) N1 A2 _& W) O) k* ` G
to get-color5 ~% v: ]) y( r9 h* [8 s% z
+ d' E. K- Q5 L0 W% a G+ S4 v; P
set color blue
5 m4 S2 x1 {" E3 dend" @ V! `8 t, l6 m' s5 I( W5 ^
: a8 Y2 o9 @7 e0 w
to poll-class
3 [6 E' u/ E7 ~( Aend
7 y& g P/ C, h1 p6 f1 r1 I) f, T! o" V6 k, J; p g/ E0 @
to setup-plot1
h1 l; }, C' m. m. }" \, n
- `4 g3 U2 ^- {4 W5 P" B7 U; \set-current-plot "Trends-of-Local-reputation"# k: e) ~; x% H6 X8 }$ t* N
. ~- L$ _7 T7 T% O; t
set-plot-x-range 0 xmax
0 z) i& I* w. F* | ~$ D7 j3 `8 I/ W
set-plot-y-range 0.0 ymax: f& @5 E2 i% ~% S* P
end
/ Q& d1 s0 r, m/ I7 ~- b
8 x: `- y o, U# @9 ^to setup-plot2* u' p# l0 V4 g& P, ~+ I
! w5 @1 L1 q6 N2 }set-current-plot "Trends-of-global-reputation"* m0 Z" |" G- @, R; |4 B) ]1 j: l
2 p3 N, V. F) M1 Sset-plot-x-range 0 xmax
' t+ C1 ~$ Q9 k" g$ L" [ o k/ N8 A: j( f4 H5 s; C
set-plot-y-range 0.0 ymax
! U/ x( C3 L: y& O0 fend3 p% k" v! \& n6 G
9 ^! N* T2 s ]8 e$ d" Cto setup-plot3& d. X" D) m" z |: b- {
1 w. O o6 u, E. P0 }
set-current-plot "Trends-of-credibility"3 I, w% k% H4 o
# B7 @. ]; _) Y) R
set-plot-x-range 0 xmax* U( B8 X- Q! C* J6 P; I4 h s1 H4 E
/ x+ W) {, e6 H& H! U
set-plot-y-range 0.0 ymax/ t% r1 K1 F$ w
end
( a' k$ n% K( Z6 b- ~8 ^7 Y
1 n8 b# T( L8 g5 `% Cto do-plots
u& G& x/ Y1 sset-current-plot "Trends-of-Local-reputation"
0 p% E- e9 d; r: C6 eset-current-plot-pen "Honest service"
2 l( C( h( g+ xend
- Y8 B# C& ]. ]7 _+ e
, d f# |& h6 |2 O5 R- C9 \[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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