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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
: \( s9 Z: a2 a& i3 L2 rglobals[4 V* [) Q& k8 b
xmax
% ^ R. S- z* \: }" p1 w6 ^" zymax
; @0 Z7 q9 u! Cglobal-reputation-list
4 r1 O' Q+ T! l: L6 `) p
. M3 m" c3 j/ t5 z* c r9 q6 k6 a;;每一个turtle的全局声誉都存在此LIST中
. V" h' R a3 n+ T( ecredibility-list
& Y- ~: y+ b6 p1 O2 x5 D;;每一个turtle的评价可信度
$ S* ?$ F+ S% Q' O& b3 Vhonest-service
: ]9 ?- { e0 v9 w f2 Z3 B, o$ wunhonest-service' `4 T2 Q) t" T& a' T; p: g8 Q9 x' |
oscillation$ A4 N9 J# z W- ]6 E/ F/ ?
rand-dynamic% D y0 W8 ? G& O2 D: y) h# E
]+ z0 T# j- W0 t1 D/ i
) l8 i1 Q/ A: ]/ N' d; ^' a1 |
turtles-own[, D. ]& `: c* @/ ~
trade-record-all
& C& u( u4 _, B1 D;;a list of lists,由trade-record-one组成5 m- s* t4 I( X- N( [
trade-record-one. v9 a# R6 K3 N/ s
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* h. ?$ a8 Q7 j2 a+ T+ f$ X0 p4 o$ k$ \! R! f3 f: u, ?5 ~. N, v3 B6 W
;;[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]]
0 M9 e- T. k2 |- e4 c1 H8 z8 u# F# ztrade-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 z2 N+ E) H) [. ^4 hcredibility-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! C9 S- `$ ~& C5 A& |
neighbor-total \: |& q: W* p1 U! v
;;记录该turtle的邻居节点的数目
( O y% ?1 H! J/ Htrade-time
6 N% ?1 Z8 `. ^4 W; k: z;;当前发生交易的turtle的交易时间; |" l7 Z: ~( L" Y
appraise-give
7 O+ a) ]- S) p0 m$ U$ K;;当前发生交易时给出的评价
, q5 i0 p, O: _7 n' n1 ^6 |2 p1 dappraise-receive
5 F* G1 x# ~1 q5 Q;;当前发生交易时收到的评价* Y% Y1 B! x: L: r
appraise-time
1 s6 P6 I- u0 K q1 g. G;;当前发生交易时的评价时间
# s* Q% x+ j0 E8 ~0 olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉3 j( ], ?( w8 Z
trade-times-total
: B% v0 x& x* r7 C;;与当前turtle的交易总次数
5 m0 W4 @8 ?' } _4 u* mtrade-money-total8 K6 ]) {% `' a+ q- u5 t7 e
;;与当前turtle的交易总金额- u4 o Z( V1 a H) }6 h8 _6 M
local-reputation$ l3 U6 Y+ `" Q
global-reputation
( {" m5 g3 T5 n% l/ q: Ocredibility( Z1 z, N7 G5 Q N
;;评价可信度,每次交易后都需要更新
" J" {* K% D1 C+ Zcredibility-all! c7 T1 G% A2 h
;;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
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;;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
2 `# X) \+ Y+ [# _; \credibility-one9 a- \, E) g! b$ H0 V- D$ k, h9 |
;;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: b z1 A6 y* J) c0 J2 ?
global-proportion7 A( L$ p; D U6 H2 }& ]
customer
0 n# n8 l' q3 X7 }& bcustomer-no
0 v$ R4 A1 J9 [& W& h$ l( j Rtrust-ok. Y* J6 Z( q: f0 A) {
trade-record-one-len;;trade-record-one的长度5 j+ S$ k5 m5 I
]/ V9 Y% c- i, _9 I9 d) O& [
% R" O9 f8 R- p' h: I! f
;;setup procedure
1 d: f, Q' T# P; _7 E2 ^' B
; K7 }- }# b% Q( L% Xto setup
c% ^9 Q, E& H, x2 T6 v* a% d
2 ]8 v6 y' V! ]3 O% |! q& pca
6 ], g! C7 `) O+ t* @. Y' |) |* V0 Y- n7 K" b, N
initialize-settings# \9 W* w. I2 M
7 J, R0 e3 G# r2 `5 |crt people [setup-turtles]
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reset-timer
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, Z9 _* u3 ^" O. X0 z5 Ipoll-class0 ^; P1 Q; ^" b: z: L
3 _& a! j7 f- }
setup-plots! J6 i" o; z2 T Y
- B5 n" f/ l: v: I) H Cdo-plots: r' a0 n1 W- `, X K0 B
end
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to initialize-settings# _5 g, n: y! S8 ]5 a
/ ?, s% H; `/ P' U# C3 w% o9 z! xset global-reputation-list []
2 o* p' l; L9 K3 D0 i; O4 L4 u7 ]; F, I
set credibility-list n-values people [0.5]4 f/ B% ?3 I7 ^" l
6 ^+ \( f* n+ q' F# _9 W1 |
set honest-service 0
& ~4 H l& O; e! F/ L! z# F
( M( z. _' ]( o+ g8 [: S7 jset unhonest-service 0" U; o+ d& h2 ?; f
+ [ ]0 R) k/ e- S! f5 O- w, f1 l) ~
set oscillation 0- k$ y1 @$ K* U! @, V( |4 n+ ]
4 B$ q" a, X6 s: c6 `1 Q( w5 @/ @; ]
set rand-dynamic 06 O" P6 l) \ g! x$ a
end
" }5 ?! J) m D4 S# o& q0 c7 n' t3 b& y u1 _. {' k
to setup-turtles
: R$ s& \& R9 F+ y1 s% V5 J V" wset shape "person". E5 M* S! U' a, V q: `& B4 |
setxy random-xcor random-ycor
7 k3 N/ S5 Q3 { w& H+ e% Hset trade-record-one []/ g( B9 F3 y6 }7 x
# w( }( Z# |* s( }% fset trade-record-all n-values people [(list (? + 1) 0 0)]
2 Z( d5 [5 u- {) O1 N) |- T+ _. N- l( N: e+ k) r+ {
set trade-record-current []
: T5 t# L) `- Y# qset credibility-receive []+ O# f2 r$ J- \0 b" n
set local-reputation 0.5
& Y9 \! c/ n; f! B3 ~0 |, Aset neighbor-total 09 ^- ^7 Q$ e( J6 h, o
set trade-times-total 0& O4 L/ }8 T& _
set trade-money-total 0+ C: d# J0 N' j# \! W$ T' |5 s1 L
set customer nobody4 p# S$ W* o& p+ Y% U
set credibility-all n-values people [creat-credibility]
/ u& t7 U5 ?( p0 b1 g5 E# iset credibility n-values people [-1]
8 g7 b. P7 ^+ |' L5 a! S( O- c, Eget-color& ^7 N s2 u3 K3 W
2 G: i0 H: E- U9 Eend( R2 R# h1 [8 u
* ~6 A8 M% \; I0 r0 G' nto-report creat-credibility$ D/ O' e' t o# R+ P' a# W, o4 a) ?6 {
report n-values people [0.5]
1 Q) s" d$ [3 F# O& d: n7 uend
0 K) k. D4 }6 S- l
6 [& X* b7 o, Oto setup-plots
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set xmax 30; \7 o1 j$ o0 g
6 m! K% C; V* ]1 A$ F: Xset ymax 1.0
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clear-all-plots- c9 f* d/ |, Y- H) Q+ N
" d1 F7 u- P0 B- g; H! Qsetup-plot1$ a" B& Z0 Z* }
2 t4 \/ ^, E8 e3 s9 ssetup-plot2
4 r: @, P, f7 `: l- D& w6 V$ e' T$ _% H& I
setup-plot3
. `- y5 S" F/ t! d8 D% m: ^end' I6 g" ]5 F2 V4 |" o1 o
# q Q2 u6 i0 A9 d& l: Y;;run time procedures% D2 b1 T/ d/ s$ I& \/ r
" P6 P' }0 ?3 m. o- _* U
to go7 O, R2 O: q7 K1 Q9 H; C7 @
0 |5 J6 u; J1 N5 ~ask turtles [do-business]& P2 _7 F: b+ `# J, h* V
end
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[7 Q; K3 R' h: cto do-business
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! G: n% @$ o5 d% P
$ v- w" ^- `* I9 o! Z& S- R; nrt random 3604 G9 \& @9 j/ ?
7 s* x/ O2 C, B, c! M" l
fd 1
% k3 e! j! j! W. y7 s! L
7 T! h- W+ h1 K% J5 w: mifelse(other turtles-here != nobody)[0 C5 p" Y9 j) T0 F- u7 I6 V
3 U8 q- R" x% y6 Z
set customer one-of other turtles-here
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;; set [customer] of customer myself7 w1 Z; S- K# N+ P: X5 p
* Q# W7 [1 V& U
set [trade-record-one] of self item (([who] of customer) - 1)
: n& V8 D/ H! M$ S: @! r[trade-record-all]of self
( n+ V/ H8 Z' a% e;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 n) R& b5 n0 h" E
' G$ t9 n- l; u: o* rset [trade-record-one] of customer item (([who] of self) - 1)& u+ e. \. z3 w6 f( t
[trade-record-all]of customer: N" z% H6 y! ^" L: u$ G
4 n$ ~9 O& ~; [; c) x& Iset [trade-record-one-len] of self length [trade-record-one] of self
$ T: M: y; n$ O* h) J! e
( H. a/ B1 `: M5 k. i" J; n4 ?set trade-record-current( list (timer) (random money-upper-limit))! A" C$ ~+ ?% I2 x9 m. W
$ ~* A% F8 l k1 G+ D
ask self [do-trust]& T3 `3 l4 P/ l u5 D
;;先求i对j的信任度
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if ([trust-ok] of self)7 h$ |+ L2 n$ U' y! a% G1 B
;;根据i对j的信任度来决定是否与j进行交易[
+ t( B& A8 m: ]+ {! ^ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( [6 t# e' r. X* v
/ x+ h8 s# r3 p" a1 h7 I[
- A8 q1 Q5 F9 E' s0 V/ Y, g0 n" V: c0 \; }' ~; S
do-trade
( P1 k0 b0 U1 Y& b& v0 y7 O# F; k: B0 ~* K8 s9 K
update-credibility-ijl
+ s1 O; I! t8 K0 j. c1 G# |& H. b9 r* B3 m% X ?. E7 X0 Z8 w
update-credibility-list( w8 y0 @5 }! ]! P
7 [& G& A& n9 j$ X3 g: ^* R( d+ `8 j6 m1 {+ r+ C
update-global-reputation-list2 M y# Z- K+ H2 u
5 }6 z! |0 f0 l% Rpoll-class% Q3 Z2 l9 L0 u% g
T. u. v: {0 T$ y- F& i) mget-color
' O8 r. D* m) j6 f4 F! P3 p4 g+ M q. C& g) V6 _1 h
]]! F3 N g+ h$ E; K+ r6 F; t
5 r% Z9 R1 Z" ^# C9 N;;如果所得的信任度满足条件,则进行交易
2 p$ ~3 E5 [0 `0 V
. O2 n8 A: r9 u$ d" g# P1 D2 a! }+ T[9 q" s- j- F: z% q; z8 ?) _+ H& O
* p4 d0 O" c# o ?1 s& \; j
rt random 360
+ z+ s8 J) n" l! M) @$ {
" k* t1 G3 x/ s2 Nfd 1
: _" \& D3 z- U
3 | |, m, T* r5 C]
1 @2 a1 y0 @4 W' f) x' M; S5 }2 o( F0 q; ^+ \8 e
end2 q7 r6 Z$ p- r
3 w! ^9 S, b' l# B& T5 F
to do-trust : h" u4 L4 B7 L5 ]. C: b
set trust-ok False
. j2 B+ v8 z) c C1 a- ~% S
* f0 }- V. U, x9 q0 S2 w( _! e0 z- x# P5 D, k
let max-trade-times 0# C- P( E" K$ r& v' e, c! S2 P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ G$ g' I) `6 y. `- Q1 b: s: C
let max-trade-money 0$ N0 x1 m: e, l: u
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 ~* C. N/ z- \/ 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))7 T1 _1 t5 \8 z8 W) c- w3 ?( w1 l
0 s/ P9 \& J/ n/ C: n8 t ^
7 l# ]. p$ r* s0 L4 V# pget-global-proportion; B2 ^7 z j0 E; ~
let trust-value
: o4 p5 {5 r) y, Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)/ z6 {+ C( u) G) k/ {5 r* p; D. H
if(trust-value > trade-trust-value)
3 M1 B8 L- Q+ J! s' \* E- D1 B, ]: v' e# B[set trust-ok true]
$ Y# h* X* V8 [/ `2 |; E4 cend
) u8 J$ T" R$ Y% y; r4 x3 H! f) i: }$ X" M
to get-global-proportion
# U: h! t" K1 Q( E; a1 cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). d! W7 x3 _ {9 X- l- N& }5 E* S
[set global-proportion 0]
+ l; }) r& r; x[let i 0
8 I+ f/ J# h5 z6 ?- N& L! N' flet sum-money 0
! Y( l. t0 \! R# M+ {- D% gwhile[ i < people] ?. p2 o# k" ^
[- p2 u+ p, J( U& B+ x1 L
if( length (item i- m# p( S6 W4 Q. c
[trade-record-all] of customer) > 3 )! C& n7 \$ p! U
[' m- G1 O( B1 `! T
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( A% Y( z i2 f- A) \" W* t/ S, h]
: D! d1 z) \* y# C0 M$ i* o]
- d3 @4 N9 q3 F3 \7 Y7 Wlet j 00 ~+ L$ ^6 Q4 h: l
let note 0$ r" Q+ D/ G* O+ h: W3 S
while[ j < people]
6 I' { M9 z$ T; a) p! Z[: O- a' f& L: l9 |9 s
if( length (item i& w' b) J/ G2 Q3 i- ?) ^* S
[trade-record-all] of customer) > 3 )" J! i3 d" U& F( N: S! N
[! a* ]% V$ E; Q* _& ]9 i1 _
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! {, |& g h/ h- q% v
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- k* L, {' S* y7 I- m3 y8 Z% R[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- {: M n& X5 M]' V; | c' }5 b' l8 U
]& }8 `1 v9 M! b; A" A& _4 f. [, C9 W
set global-proportion note2 Y8 }3 o% ~6 B1 p! Z' N9 G+ s# j
]
/ a$ r! q, d2 s4 L( `% j2 B$ Y* iend9 x5 w* M1 z( t2 _+ B
) I4 B1 [8 v& G
to do-trade
; k8 a' [' \" ^* G;;这个过程实际上是给双方作出评价的过程" o. Y9 f+ \1 s7 ]; V8 J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 o9 x' H9 N+ k2 d8 [2 s+ x% w# kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 F0 j5 t: g4 Q& gset trade-record-current lput(timer) trade-record-current
) U ?; T4 G! M! I& V;;评价时间* }& C+ Y8 N! @, k
ask myself [
7 a: W' {) H9 Y% _update-local-reputation
. l( X2 ~+ z3 I" |" a$ L& T* Jset trade-record-current lput([local-reputation] of myself) trade-record-current" {- k& M& x R
]0 l- ^2 W9 f; W/ K" h
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 j7 G% U" g$ V. q! L$ Y;;将此次交易的记录加入到trade-record-one中
; C8 }, B0 g# c3 o# {$ R$ q ~set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* r7 w( h2 K4 v* q! h2 n* V% K, s: @let note (item 2 trade-record-current )5 @, @0 G+ I# a# y
set trade-record-current
E% f5 h' h7 x( B( ]4 O( S(replace-item 2 trade-record-current (item 3 trade-record-current)). x8 y! k4 |2 P6 r3 C
set trade-record-current1 M7 C+ N0 e3 Z9 ^8 g. H, f
(replace-item 3 trade-record-current note)% a" U* Z) Y( r# [' V7 g
0 J2 r. X! e9 Z$ M2 j& ]7 z& [
0 h& A7 X& {2 v# P8 l0 g$ U5 Rask customer [
0 a. t1 ^3 Q4 T. ^update-local-reputation
, e2 t4 i* o5 ~/ r- q- P0 {3 oset trade-record-current9 ^) u b9 B+ ?6 K+ \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! r0 w/ \* Z" o
]6 q3 `' a3 J1 `* u# M
( L. V; t* r' d
4 T. k* \9 [8 L6 L. P Yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, @ Y2 c( f" e5 b0 A" Z0 w
5 Z3 Q# M: H4 O) T' i* `set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ d. x& V6 {/ W7 m! E- C;;将此次交易的记录加入到customer的trade-record-all中
5 }* _# Z7 c* Eend4 z: Z+ ?4 F% i) W6 e; O
! m2 P+ c+ j* u! p& c S8 L- ]: oto update-local-reputation, ]' V: k$ s$ h' W; K# s
set [trade-record-one-len] of myself length [trade-record-one] of myself
1 @4 ~" s3 c$ w! f
! I, J8 i: p' u9 q
& c) e; q x. P1 S" W% w* `' _4 f1 a! i;;if [trade-record-one-len] of myself > 3 9 y0 Z+ z0 m6 |
update-neighbor-total
2 z& m) b# U! b( h% {- G8 g- q" M;;更新邻居节点的数目,在此进行
( L2 J9 g( \: y/ d! G; ^, [* `let i 38 U% c( s8 |# ?! I& q9 r
let sum-time 0 P( @) e1 x5 s/ h
while[i < [trade-record-one-len] of myself]
$ y1 C5 @" L2 G[. f+ q$ _/ @& Y& Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ O- M" K0 N' d# @set i& X; n6 s5 ^- {1 z+ \. d" b. N
( i + 1)
! |2 o% U2 Z' j! J]
: ?& m0 X; E* U( w5 ]- mlet j 3
; G* S6 t P B7 t4 I5 D0 H/ q9 Slet sum-money 0
/ Z% C$ J0 n/ o5 n* l# D1 v swhile[j < [trade-record-one-len] of myself]
4 Z, r5 h1 f$ j& |2 Z[
; u2 o6 q5 r0 Y* Zset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% ?7 E6 @" M- p& O" o W3 O; tset j* \/ ?9 F+ @# \7 S5 \% w
( j + 1)
% F* m' @& o @ I3 U2 z" t. g]
( Y% X$ g M T# Q. w( M" ylet k 3! T5 C8 n( ]( z# |
let power 0) s ]( X6 b! q! J8 r* R# `
let local 08 q) G" |4 u4 A. ~5 \
while [k <[trade-record-one-len] of myself]1 U8 ]0 L- L H3 j8 u# g- b6 b
[4 B6 f2 T- G4 b% n
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) 5 X+ }0 c' S) S6 {6 Y- G' |
set k (k + 1)
6 F0 \5 h, N+ O7 I b]
~& `! o5 R4 w' v+ uset [local-reputation] of myself (local)
) q& k0 L6 E1 aend( @. j S6 I: _5 [2 ? q8 u( G
8 a4 X; V% Q5 E! k' Cto update-neighbor-total' {0 o. k3 E2 r7 v a; l( [% U
2 g7 p# m$ O. X8 Q! f$ s! Tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( w# c: O4 ^* o" G! c( Z5 O: J' \% y3 I0 \9 {
5 y% r3 \/ `3 U3 D2 @- H3 ?
end: z7 [5 Y, u8 U6 v% L) q+ D' Z n
" O2 l$ S6 I6 Hto update-credibility-ijl
' N" {* b G6 X' H
2 G& c% }( q5 v5 Y3 y;;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。
% u; @, J! @- N+ G* p6 y8 ^let l 0
* L+ O. t1 Y2 f, g" c% lwhile[ l < people ]; P9 E- U, ?! w
;;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
* {( X2 u! _, V( {9 l[7 [- ~9 z/ t% O4 b% N$ ?* y/ \2 ~
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 R( s# E$ e( l) F* u7 Z4 x# [- }# b
if (trade-record-one-j-l-len > 3)
: j3 t- J& y3 }7 T/ 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
7 }4 ~" N, U4 l' b0 J( Qlet i 3
5 n) }9 ^! L V+ {" {# Slet sum-time 01 O7 e6 ]6 C' ^3 k" y
while[i < trade-record-one-len]3 E% r4 U+ q5 D0 `, O/ r$ E+ ]* y' r
[; P) d1 P, V6 f- b! ^. N3 q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
9 y3 e: D( W4 d: A! H% z2 xset i. Z0 j; w( k$ [5 t
( i + 1)
& Z7 t n- I5 h1 i& a3 F$ Z]
% v7 K+ |6 \8 Hlet credibility-i-j-l 0
4 m. X' h( {8 {6 Y" B$ \0 [' f% P! s# ^;;i评价(j对jl的评价)% C1 f6 l G3 i9 d3 u
let j 34 |/ A: M. J: i3 J. _
let k 4+ ^2 k0 r `% }! D+ {& t
while[j < trade-record-one-len]; w Z ^) w: i
[
, s% q+ i. |; d' @; Bwhile [((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9 [! Z- t7 E% y# A2 M K
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)
- Z7 {( P0 e m2 X' l% N0 u: Wset j
4 J5 B6 [7 z3 }! t# R9 j* N, z7 F( j + 1)
2 k* K% q6 O/ ]3 I8 D]! b) U8 d& r0 }/ C$ U( a
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 ))
2 N: N1 u' ~1 M
, b% ?. J0 Y* h- ]2 T: K% V8 @- ?$ s% l6 Z7 [+ Y/ H/ M
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# P% q2 \; P8 b
;;及时更新i对l的评价质量的评价
( S% Y1 d# [3 y. g) y7 \6 fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. c5 G8 s: ?2 O! f% X! S" Eset l (l + 1)" Y. z6 q3 Y3 N
] u9 H# _ r7 x( J1 ^
end
8 ^& K- D" b( s4 m4 V; f% N# W3 W
to update-credibility-list0 b" z _4 X' b. V: t
let i 0
4 M/ w( X$ P& V. l( I1 {while[i < people]
. @5 \5 s5 K# v3 M( Q; q[
3 I" [, {& ~+ t0 p% } o8 Dlet j 0
: U5 Z5 u, g' ylet note 0' z- d; l# P! q8 ~$ _6 H
let k 0 {. H: W; a1 ]
;;计作出过评价的邻居节点的数目/ n- @- O$ A# K; z0 ]+ j
while[j < people]* n( m( C- L" V5 S: P( }
[: C& W, a1 n. }4 p$ r0 S% ?
if (item j( [credibility] of turtle (i + 1)) != -1): o% T$ u& g% e8 X
;;判断是否给本turtle的评价质量做出过评价的节点5 u P7 A; K$ P" K8 c$ _9 ^4 D' |
[set note (note + item j ([credibility]of turtle (i + 1)))
# ]3 X( u' S* \- y; @; n& G% L9 Y: Q;;*(exp (-(people - 2)))/(people - 2))]
$ t. m2 u2 J/ X. d! rset k (k + 1)
- p* N, j. m! K$ M5 [+ @, k]
5 X! M# ?3 d, e4 Z# cset j (j + 1)( `2 T, ~6 \# [* T
]* v/ Y, M$ F1 ~6 D( P+ n3 ^" A
set note (note *(exp (- (1 / k)))/ k)+ }0 ?! u$ ?4 X! E6 o3 V b
set credibility-list (replace-item i credibility-list note)' `9 I% m/ |/ \1 E, Q
set i (i + 1)& m& ^1 j3 N) c2 j; L- l4 ]" @
], e2 d) G$ u1 k
end+ l8 b: A4 K) h$ H! S
0 O1 X& D/ k& ?, m) {" V' ?to update-global-reputation-list
5 p0 S& T" p7 }; f7 Q) j& Y; hlet j 0
* W/ [1 C7 B4 ~7 w2 {while[j < people]
, h% }/ }. e# q% r9 J( S7 v[. _, v' M+ m+ w" f4 b: \9 F c
let new 01 s0 W) C; u8 n" s1 S
;;暂存新的一个全局声誉: \4 u+ ?3 H' {: d2 x3 a4 l
let i 0
) A, x4 [0 s6 E* |. v3 u/ f% e# K' Ylet sum-money 0( k' Z8 M c" G% k" Z. [
let credibility-money 0
3 f' h( E" m/ Qwhile [i < people]+ K0 {2 T3 T1 P* Y& t @2 A% t
[
+ {) u! `3 w8 L% t* H& Mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 I7 l. G4 n4 U1 X. E0 Y6 F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! _# M9 R5 \! {- Q4 [, V/ |set i (i + 1)9 f' W% F3 _! y9 z$ ?
]
2 G, i+ ?7 `% h; L# Olet k 0+ {0 a) b/ }" O' ]: r
let new1 0
2 V& L9 U0 ~% W* |( ^8 o; Z v& jwhile [k < people]
9 A3 [/ j) T6 `+ w9 z) C/ L2 U5 o4 \: ~[6 |; k* ~, d! u1 N5 J/ H, u: a0 f
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)
& x [ Y5 U8 P2 ]9 Y+ ?) R9 Jset k (k + 1) K3 E7 z. v/ d8 z8 ^: ~& ^$ J& x' t3 o
]
9 v& ^5 g# _* ^) [, T- w2 r/ O! B5 mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) + V2 ?8 N; Y- v- [
set global-reputation-list (replace-item j global-reputation-list new); T. e0 T I" B2 b: E: v
set j (j + 1)
$ m( n: |7 C2 v S' v e! n]
& q0 ^* v8 H- ^! g* B- Gend/ W% |7 F) H" ~7 A
) T9 v3 E l5 M6 N3 x. A8 c, x% t7 z: t* I9 O" H4 d
* ^- Q" ?0 O6 a8 I7 o
to get-color
0 R! w9 C$ G0 O$ c I' e7 w) F! y. t1 B1 a
set color blue
1 Q- }$ h9 d8 q) H/ S1 U4 R4 jend- j$ ~/ [5 ]) {2 M4 X, {! D) U
0 \; y3 u+ q# U# w! g# ato poll-class
1 p# M# v. N1 t3 w. Y1 ?end: r# k2 ~8 K& V2 P
5 v; G/ j. {) }# G
to setup-plot18 R( S4 [( \* ]) U
% W! G, b! m+ B1 s; Nset-current-plot "Trends-of-Local-reputation"
7 q6 _. R! V: B
: O& D3 o' D/ h4 V( Kset-plot-x-range 0 xmax, O2 o/ H; G2 a' j+ W/ a& Q* \
; g) P& x% d4 v2 z0 O+ c
set-plot-y-range 0.0 ymax
9 |2 D" W7 T. Z5 H9 ^end; d |5 S% r% P0 A: f
$ u, ]" m3 E0 d5 p% y C! ]to setup-plot2
2 r% p, e: Q7 e# K s9 {5 m' T+ W/ w4 t) E {" g0 i' M8 q: ^
set-current-plot "Trends-of-global-reputation"
; X" b5 ?' @. j* c( B' H# s9 X- I9 L5 S! v7 G$ _' k3 J0 Y
set-plot-x-range 0 xmax0 }9 n0 S# o/ Q+ a& k- x
" ]8 r; |! I3 I cset-plot-y-range 0.0 ymax
& f3 Z h, x, kend( G0 b/ r) N$ a$ ]) C8 f6 P5 @
" G2 s3 g0 k; l v$ o2 I% Rto setup-plot3
" ?' t6 ^/ W& g$ \# N5 X) j
% A& f( m* b$ y7 Y( y- c \' p) }" H' Xset-current-plot "Trends-of-credibility"
3 e* m1 B! c% l5 W1 U/ b9 P+ p
* r. v C0 c9 ?& s1 L9 vset-plot-x-range 0 xmax( T3 @; l4 C. Z! [1 f9 [% r: {
4 Q; E4 r6 M) c- ^2 hset-plot-y-range 0.0 ymax
' b* R; x8 l) @ Yend
8 T& A& z9 ]8 ^+ _1 J* ?. K& c7 y+ M) R* q
to do-plots
) H/ o3 I& ?; \& W( U" b* zset-current-plot "Trends-of-Local-reputation", K8 g/ y0 F& n: b: S7 P0 _3 n
set-current-plot-pen "Honest service"' \% p- _6 I) J+ s! O/ D& h
end
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& ~3 F0 A* x3 M* k2 o: I[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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