• Non ci sono risultati.

1+7-1-1=(5+7+7) |

N/A
N/A
Protected

Academic year: 2021

Condividi "1+7-1-1=(5+7+7) |"

Copied!
7
0
0

Testo completo

(1)

FEPEO

: .

ALLOWING

NEGATIVE counters

' DEA FE

)=5

- 3-2+7 -

1+7-1-1=(5+7+7)

-

(

3+2+1+1 + I )

FED

-

FI ]

Keep 2 count . min

| /

sattetshneesiponnffouet

f The analysis

for

FIRF

is the same as before

# F)

=

FEI

) -

FE

, whew approximated

with # an F- . iyiz , . . , is , . . .

( if , >.< in ,tD

,

. .

f is, ZD.

.

(2)

@ HFIKFEIFEH

=HE¥HE¥ ]

observations

xo

Hot

=

l¥gittlxIl= ¥

thief the

. "

Prtkoil

>

EHFIDC E[kiD ¥ EIXII

+

Etxs :]

IFH EHFH

Markey

=

ftp.t/ineeueib@E#=te

we cdw bound the cnov in this way

the rest of the

analysis

is uhchguped.

(3)

Interval

queues

< I

, ,t ,> < iz, t, > . . . . .

.li#

. . . .

FF ) FE ) .

tFy

) .

FE

.

's

P

+ Zs

simple query

:

FE

. ]

Interval query : F[x]tFE⇒t . .

.+FE¥¥¥F×

,

=

FIFE

]

Wrong way :

FI

, =

JEFF

)

#

12 expensiveerror is , costadditive

Oftxti ? )

time

(4)

Fg

, >

=

Fsa

+

Esottjizt Fb

°Y?¥ews

is

Tridents

Fi 16

⇒ to

yFkt@tGFgooEEEEEotFFI7FE7FEtED5c78Tcok12DklJknn.g

(5)

old

thus

manydu

There ntnztnqt

counters . . . < 2n

dyadic

intervals and

Fab

Old

When

FE 's )

t=zs is execute , we also perform

Fay

t= Zs

for

each interval such that a

tie

}

( we change

by

w counters at most

)

Given a query

Fxy

, the latter can be expressed as the sum of {

2GW

dyadic intervals ( indeed , if there were 5 consecutive

intern 's on the same level

, then we could replace two

of

them by an interval of double site on the upper level

)

Fxy = Fas fab

(6)

We use count . min sketches on the counters Fab was

#

s

, thus

FI

,

,E¥b

=

1 cost is 0

(G)

time

2 error is bounded

Fxye Fxyt 2e§w

HFH with prob. > 1 -8

Let's see 2

(7)

Define

Xsdp as thegarbage

for

Fab , that is

Fab =

Fatty

.

Let X =

Expo

-

Observe

that ¥

,

Eytxxy

=

Ekxi

and that

)

=

2{GI

HFH

then

Pv[ Xxy

> 2e GNHFD <

E[X×D

¥75 ±

The rest is identical

. o

Note Using the individual errors on eacw

# ?

does not work ?

That is , Pr # Yi >

EHFID

does not implythe above result

Riferimenti

Documenti correlati

2.4 L’evento nella comunicazione d’impresa: per un approccio di Marketing esperienziale:

Come nel caso delle attività, il cambiamento da uno stato ad un altro all’interno del ciclo di vita di un servizio può essere monitorato attraverso la chiamata a dei metodi che

• elettroliti DEBOLI, parzialmente dissociati in ioni e parzialmente presenti sotto forma di molecole non dissociate, rappresentati soltanto da acidi e basi. Ad esempio,

8.2 CONCENTRAZIONE DELLE SOLUZIONI La CONCENTRAZIONE indica la quantità di soluto presente in una certa quantità di soluzione e può essere espressa in vari modi; una

[r]

Com’è noto, uno dei principali bersagli polemici di Canetti fu Sigmund Freud: non solo per la lettura sovversiva che ha fatto di alcune patologie della psiche individuale

Ten-year survivors from the Connecticut Tumor Registry who were diagnosed with histologically confirmed primary invasive breast cancer between 1935 and 1971 had an 80% higher risk

Therefore, glucose uptake and glycolysis-mediated delivery of pyruvate to, and its rate of metabolism by, PDH must increase or the rates of fatty acid uptake