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|
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This file is a solution template for:
\end_layout
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Talk at a conference/colloquium.
\end_layout
\begin_layout Itemize
Talk length is about 20min.
\end_layout
\begin_layout Itemize
Style is ornate.
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status collapsed
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Copyright 2004 by Till Tantau <tantau@users.sourceforge.net>.
\end_layout
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In principle, this file can be redistributed and/or modified under the terms
of the GNU Public License, version 2.
However, this file is supposed to be a template to be modified for your
own needs.
For this reason, if you use this file as a template and not specifically
distribute it as part of a another package/program, the author grants the
extra permission to freely copy and modify this file as you see fit and
even to delete this copyright notice.
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\end_inset
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\begin_layout Title
Pridobivanje podatkov iz omrežja DHT
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Pridobivanje podatkov iz omrežja DHT
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status collapsed
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optional, use only with long paper titles
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\end_inset
\end_layout
\end_inset
\end_layout
\begin_layout Subtitle
Analiza pretočnega prometa skozi vozlišča protokola BitTorrent in prenos
metapodatkov
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\begin_layout Author
Anton Luka
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\end_inset
Šijanec
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1
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\backslash
and
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S.
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Another
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2
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status collapsed
\begin_layout Itemize
Give the names in the same order as the appear in the paper.
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\begin_layout Itemize
Use the
\begin_inset Quotes eld
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Institute mark
\begin_inset Quotes erd
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inset (
\family sans
Insert\SpecialChar menuseparator
Custom Insets\SpecialChar menuseparator
InstituteMark
\family default
) only if the authors have different affiliations.
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Anton Luka Šijanec
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- optional, use only with lots of authors
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- if there are really lots of authors, use
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Author et al.
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status open
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1
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\end_inset
Mentor: Andrej Šuštaršič
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\backslash
and
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\end_inset
Gimnazija Bežigrad
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Ljubljana
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2
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Department of Theoretical Philosophy
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University of Elsewhere
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status collapsed
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Use the
\begin_inset Quotes eld
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Institute mark
\begin_inset Quotes erd
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inset (
\family sans
Insert\SpecialChar menuseparator
Custom Insets\SpecialChar menuseparator
InstituteMark
\family default
) only if there are several affiliations.
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Keep it simple, no one is interested in your street address.
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Gimnazija Bežigrad
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optional, but mostly needed
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\end_inset
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\end_inset
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\begin_layout Date
15.
maja 2023
\begin_inset Note Note
status collapsed
\begin_layout Itemize
Either use conference name or its abbreviation.
\end_layout
\begin_layout Itemize
Not really informative to the audience, more for people (including yourself)
who are reading the slides online
\end_layout
\end_inset
\begin_inset Argument 1
status open
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15.
maja 2023
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status collapsed
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optional, should be abbreviation of conference name
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If you have a file called "institution-logo-filename.xxx", where xxx is a
graphic format that can be processed by latex or pdflatex, resp., then you
can add a logo by uncommenting the following:
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The following causes the table of contents to be shown at the beginning
of every subsection.
Delete this, if you do not want it.
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}
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}
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If you wish to uncover everything in a step-wise fashion, uncomment the
following command:
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%
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Pregled vsebine
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LatexCommand tableofcontents
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\begin_layout Standard
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Structuring a talk is a difficult task and the following structure may not
be suitable.
Here are some rules that apply for this solution:
\end_layout
\begin_layout Itemize
Exactly two or three sections (other than the summary).
\end_layout
\begin_layout Itemize
At *most* three subsections per section.
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\begin_layout Itemize
Talk about 30s to 2min per frame.
So there should be between about 15 and 30 frames, all told.
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\begin_layout Itemize
A conference audience is likely to know very little of what you are going
to talk about.
So *simplify*!
\end_layout
\begin_layout Itemize
In a 20min talk, getting the main ideas across is hard enough.
Leave out details, even if it means being less precise than you think necessary.
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\begin_layout Itemize
If you omit details that are vital to the proof/implementation, just say
so once.
Everybody will be happy with that.
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Uvod in teoretične osnove
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Opis protokolov
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Opis protokolov
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Protokol BitTorrent
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P2P izmenjava podatkov brez centralnega strežnika
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soležnik, roj, torrent, metapodatki
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filename bt.png
width 40text%
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\begin_inset CommandInset label
LatexCommand label
name "fig:Shematski-prikaz-povezav"
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Shematski prikaz povezav med soležniki
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Opis protokolov
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Protokol DHT
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Kademlia — veliko vozlišč, povezanih v graf
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Shematski prikaz DHT
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Opis protokolov
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\begin_deeper
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Protokol DHT — proces iskanja
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Kompleksnost iskanja je
\begin_inset Formula $O(\log n)$
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LatexCommand label
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Drevesno iskanje soležnikov
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Protokol DHT — proces iskanja
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Vsako vozlišče
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Ima naključno generiran ID
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Hrani seznam soležnikov
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Hrani usmerjevalno tabelo (seznam) drugih vozlišč (usmerjene povezave na
grafu)
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Poizvedba po soležnikih
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Zahteva: UDP paket z zgoščeno vrednostjo
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Odgovor:
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Soležniki (če jih vozlišče ima)
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\begin_layout Itemize
\begin_inset Formula $K=8$
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vozlišč iz usmerjevalne tabele, ki imajo ID blizu zgoščene vrednosti v
poizvedbi
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Osnovna predstavitev koncepta
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Vozlišče pridobiva seznam obstoječih torrentov s shranjevanjem zgoščenih
vrednosti iz poizvedb in nato za vsako zgoščeno vrednost poizkusi prenesti
metapodatke.
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\end_deeper
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\begin_layout Plain Layout
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filename p2p.png
width 50text%
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Shematski prikaz grafa vozlišč DHT
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Namen raziskave
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Namen raziskave
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Namen raziskave
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Predstaviti metodo učinkovitega odkrivanja podatkov
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Podatki se lahko uporabljajo za
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analizo vsebin, ki se prenaša po omrežju BitTorrent,
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analizo reprezentativnosti programske opreme,
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določanje izvora uporabnikov omrežja,
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predvidevanje preferenc uporabnikov omrežja (korelacija tipov vsebine),
...
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V nalogi je podroben opis implementacije
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Podobni obstoječi projekti
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Podobni obstoječi projekti
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Btdigg — odkrivanje vsebin
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\begin_layout Itemize
I know what you download — določanje popularnosti vsebin skozi čas, shranjevanje
identitete prenašalcev
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Izpopolnitev v tej nalogi:
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Odprtokodna implementacija
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Začetek analiziranja
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Opis koncepta za preprostejše nadgrajevanje
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Praktično delo
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Program za iskanje
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Program za iskanje
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Travnik v C za POSIX
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Povezava v omrežje, prenos vsake datoteke z metapodatki
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\begin_layout Itemize
Brez stanja: možno iskati na več strežnikih hkrati
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Neinvazivno/nemoteče delovanje za omrežje
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Poganjanje programa — raziskovalno okolje
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Poganjanje programa — raziskovalno okolje
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Domači optični priključek: en torrent na 29 sekund
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\begin_deeper
\begin_layout Itemize
Težava: veliko UDP paketov ohromi linijo
\end_layout
\end_deeper
\begin_layout Itemize
Dva VPS GrNet v Grčiji: en torrent na 3,5 sekunde
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\family typewriter
rsync
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Rezultati
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Analiza podatkov
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Pregled
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Razčlenjevalnik torrentov v Pythonu
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Obdelava v Jupyter Notebook
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\begin_layout Itemize
285000 torrentov do 22.
marca 2023, prejeti od 174000 različnih IP naslovov
\end_layout
\begin_layout Itemize
Metapodatki o 15 milijonih datotek v skupni velikosti 1,55 petabajtov
\end_layout
\begin_layout Itemize
Do 14.
maja 2023 pa 773000 torrentov
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Primer strukture torrent datoteke z metapodatki
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Analiza podatkov
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Primer strukture torrent datoteke z metapodatki
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Zgoščena vrednost:
\family typewriter
696802a16728636cd72617e4cd7b64e3ca314e71
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lstinputlisting[language=json,firstnumber=1, breaklines=true, basicstyle=
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Programska oprema odjemalcev
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Analiza podatkov
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Programska oprema odjamalcev
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\begin_inset Graphics
filename ../dok/odjemalci_1_ods.png
width 115text%
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\begin_layout Plain Layout
\begin_inset Caption Standard
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Reprezentativnost odjemalcev, ki predstavljajo vsaj odstotek populacije
(
\begin_inset Formula $log$
\end_inset
skala)
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\end_layout
\begin_layout Plain Layout
\end_layout
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\end_layout
\begin_layout Standard
\begin_inset Separator plain
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Tipi datotek, ki se prenašajo v torrentih
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Analiza podatkov
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Tipi datotek, ki se prenašajo v torrentih
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\begin_inset Graphics
filename ../dok/reprezentativni_.1_ods.png
width 72text%
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\begin_layout Plain Layout
\begin_inset Caption Standard
\begin_layout Plain Layout
Reprezentativni tipi torrentov, ki predstavljajo vsaj en promil populacije
(
\begin_inset Formula $log$
\end_inset
skala)
\end_layout
\end_inset
\end_layout
\begin_layout Plain Layout
\end_layout
\end_inset
\end_layout
\begin_layout Subsection
Spletni vmesnik za iskanje datotek
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\begin_inset Argument 4
status open
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Analiza podatkov
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Spletni vmesnik za iskanje datotek
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\begin_layout Itemize
Načini iskanja: regex z vsaj
\begin_inset Formula $O(n)$
\end_inset
, iskalni indeks ključnih besed z
\begin_inset Formula $O(1)$
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\begin_inset Graphics
filename white.gif
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\begin_inset Graphics
filename inkscape.gif
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Primer uporabniškega vmesnika za iskanje
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Konec predstavitve
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Konec predstavitve
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Hvala za pozornost!
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\begin_layout Itemize
Vprašanja, prosim!
\end_layout
\begin_layout Itemize
Izvorna koda programov:
\begin_inset CommandInset href
LatexCommand href
target "http://4a.si./prog"
literal "false"
\end_inset
(git)
\end_layout
\begin_layout Itemize
Izvorna koda članka in predstavitve:
\begin_inset CommandInset href
LatexCommand href
target "http://4a.si./clan"
literal "true"
\end_inset
(git)
\end_layout
\begin_layout Itemize
700000+ torrent datotek (~31 GiB) pošljem na zahtevo.
\end_layout
\begin_layout Itemize
\begin_inset CommandInset href
LatexCommand href
target "anton@šijanec.eu."
type "mailto:"
literal "true"
\end_inset
\end_layout
\end_deeper
\begin_layout Section*
\start_of_appendix
\begin_inset Note Note
status open
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All of the following is optional and typically not needed.
\end_layout
\end_inset
Priloge
\end_layout
\begin_layout Subsection*
Zahvala
\end_layout
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\begin_inset Argument 4
status open
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Zahvala
\end_layout
\end_inset
\end_layout
\begin_deeper
\begin_layout Itemize
Oliverju Wagnerju (
\begin_inset CommandInset href
LatexCommand href
name "oliwerix.com."
target "http://oliwerix.com."
literal "false"
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) in Adrianu Sebastianu Šiški (
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LatexCommand href
name "ass.si."
target "http://ass.si./"
literal "false"
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) za pomoč pri obdelavi velike količine podatkov
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GrNet in njihovemu projektu ~okeanos (
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LatexCommand href
name "okeanos-global.grnet.gr."
target "http://okeanos-global.grnet.gr./"
literal "false"
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) za brezplačne VPS za raziskovanje
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Literatura in dodatno branje
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Literatura in dodatno branje
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ne navajaj vseh virov, samo najzanimivejše, navedi seveda moj članek
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beamertemplatebookbibitems
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Start with overview books.
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LatexCommand bibitem
key "Author1990"
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A.
Author.
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\emph on
Handbook of Everything
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.
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Some Press, 1990.
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beamertemplatearticlebibitems
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Followed by interesting articles.
Keep the list short.
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S.
Someone.
\begin_inset ERT
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On this and that
\emph on
.
\emph default
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status collapsed
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\backslash
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\emph on
Journal on This and That
\emph default
.
2(1):50–100, 2000.
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Viri slik in dovoljenje za uporabo
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Uporaba generiranega dokumenta je dovoljena v skladu s CC BY-SA (
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literal "true"
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Dovoljenja za uporabo LyX kode pa nisem podal!
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\backslash
doclicenseImage[imagewidth=2cm]
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Slika
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reference "fig:Shematski-prikaz-povezav"
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: Scott Martin: spremenjena, izvorna pod CC BY-SA
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Slika
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reference "fig:Drevesno-iskanje-soležnikov"
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: Limaner: izvorna pod CC BY-SA
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