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diff --git a/inf/rn/dok/lyx/Summary.lyx b/inf/rn/dok/lyx/Summary.lyx new file mode 100644 index 0000000..1facc00 --- /dev/null +++ b/inf/rn/dok/lyx/Summary.lyx @@ -0,0 +1,282 @@ +#LyX 2.3 created this file. For more info see http://www.lyx.org/ +\lyxformat 544 +\begin_document +\begin_header +\save_transient_properties true +\origin unavailable +\textclass scrbook +\begin_preamble +% enables calculations +\usepackage{calc} + +% increases the bottom float placement fraction +\renewcommand{\bottomfraction}{0.5} +\end_preamble +\options intoc,bibliography=totoc,index=totoc,BCOR10mm,captions=tableheading,titlepage +\use_default_options true +\master /usr/share/lyx/examples/thesis/thesis.lyx +\maintain_unincluded_children false +\language english +\language_package default +\inputencoding utf8 +\fontencoding global +\font_roman "lmodern" "default" +\font_sans "lmss" "default" +\font_typewriter "lmtt" "default" +\font_math "auto" "auto" +\font_default_family default +\use_non_tex_fonts false +\font_sc false +\font_osf false +\font_sf_scale 100 100 +\font_tt_scale 100 100 +\use_microtype false +\use_dash_ligatures false +\graphics default +\default_output_format default +\output_sync 0 +\bibtex_command default +\index_command default +\float_placement h +\paperfontsize 12 +\spacing single +\use_hyperref true +\pdf_title "Abstract" +\pdf_author "Your name" +\pdf_bookmarks true +\pdf_bookmarksnumbered true +\pdf_bookmarksopen true +\pdf_bookmarksopenlevel 2 +\pdf_breaklinks false +\pdf_pdfborder true +\pdf_colorlinks false +\pdf_backref false +\pdf_pdfusetitle false +\pdf_quoted_options "pdfpagelayout=OneColumn, pdfnewwindow=true, pdfstartview=XYZ, plainpages=false" +\papersize a4paper +\use_geometry false +\use_package amsmath 2 +\use_package amssymb 2 +\use_package cancel 1 +\use_package esint 1 +\use_package mathdots 1 +\use_package mathtools 1 +\use_package mhchem 1 +\use_package stackrel 1 +\use_package stmaryrd 1 +\use_package undertilde 1 +\cite_engine basic +\cite_engine_type default +\biblio_style plain +\use_bibtopic false +\use_indices false +\paperorientation portrait +\suppress_date false +\justification true +\use_refstyle 0 +\use_minted 0 +\index Index +\shortcut idx +\color #008000 +\end_index +\secnumdepth 3 +\tocdepth 3 +\paragraph_separation skip +\defskip medskip +\is_math_indent 1 +\math_indentation default +\math_numbering_side default +\quotes_style english +\dynamic_quotes 0 +\papercolumns 1 +\papersides 2 +\paperpagestyle plain +\tracking_changes false +\output_changes false +\html_math_output 0 +\html_css_as_file 0 +\html_be_strict false +\end_header + +\begin_body + +\begin_layout Chapter* +Povzetek +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout + + +\backslash +addcontentsline{toc}{chapter}{Povzetek in ključne besede} +\end_layout + +\end_inset + + +\begin_inset Note Note +status open + +\begin_layout Plain Layout +adds table of contents entry +\end_layout + +\end_inset + + +\end_layout + +\begin_layout Standard +Porazdeljene razpršilne tabele (angl. + distributed hash table) so razpršilne tabele, ki podatke, ponavadi so to + dokumenti, strukturirani kot vrednost in njen pripadajoč ključ, hranijo + distribuirano na več vozliščih, kjer se podatki shranjujejo. + V računalniških sistemih se DHT uporablja za hrambo podatkov v omrežjih + P2P (angl. + peer to peer), kjer se podatki vseh uporabnikov enakomerno porazdelijo + med vozlišča in so tako decentralizirani in preprosto dostopni članom omrežja. + Ker se podatki izmenjujejo znotraj omrežja na vozliščih, ki z izvorom in + destinacijo podatkov niso povezani, jih lahko vozlišča v velikih količinah + shranjujejo. +\end_layout + +\begin_layout Standard +V raziskovalni nalogi je preverjena praktična zmožnost pridobivanja velike + količine podatkov v omrežju BitTorrent za P2P izmenjavo datotek, pridobljeni + podatki pa so analizirani. + Vsaka poizvedba po seznamu imetnikov datotek vsebuje ključ podatka v DHT + in se prenese preko okoli +\begin_inset Formula $\log_{2}n$ +\end_inset + + vozlišč, kjer je +\begin_inset Formula $n$ +\end_inset + + število vseh uporabnikov v omrežju. + Ker vsaka poizvedba obišče tako veliko število vozlišč, lahko eno vozlišče + prejme veliko obstoječih ključev v omrežju, s katerimi si lahko prenese + metapodatke v omrežju BitTorrent. +\end_layout + +\begin_layout Standard +Naloga se osredotoči na pridobivanje metapodatkov v omrežju BitTorrent, + glede prenosa datotek, ki jih ponujajo računalniki, pa se vsled njihove + velikosti ne opredeli. + Metapodatki konceptualno sicer niso shranjeni v DHT (namesto metapodatkov + o datotekah so v omrežju shranjeni seznami računalnikov, od katerih si + metapodatke lahko prenesemo), vendar odkrivanje njihovega obstoja omogoči + DHT. +\end_layout + +\begin_layout Paragraph* +Ključne besede +\end_layout + +\begin_layout Standard +porazdeljena razpršilna tabela, distribuirani sistemi, P2P omrežje, podatkovno + rudarjenje, BitTorrent +\end_layout + +\begin_layout Chapter* +Summary +\end_layout + +\begin_layout Paragraph +Title +\end_layout + +\begin_layout Standard +Harvesting data from a DHT network +\end_layout + +\begin_layout Paragraph +Subtitle +\end_layout + +\begin_layout Standard +Analysis of a data stream going through BitTorrent nodes and metadata downloadin +g +\end_layout + +\begin_layout Paragraph + +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout + + +\backslash +addcontentsline{toc}{chapter}{Summary and keywords} +\end_layout + +\end_inset + + +\begin_inset Note Note +status open + +\begin_layout Plain Layout +adds table of contents entry +\end_layout + +\end_inset + + +\end_layout + +\begin_layout Standard +Distributed hash tables are hash tables that store data, usually documents, + structured by key-value association, distributed amongst many nodes, where + they are kept for longer periods of time. + In computer networks are DHTs used for data storage in peer-to-peer networks, + where common data are evenly distributed amongst nodes. + Consequentially are those data stored in a decentralized manner and are + accessible to every node in the network with low complexity. + Because the data are exchanged across nodes that are neither source or + destination of a datum, they can obtain new data and store them in large + quantities. +\end_layout + +\begin_layout Standard +A practical possibility of harvesting large amounts of data in BitTorrent + network for peer-to-peer file transfer is presented and harvested data + are analyzed. + Every query for file providers contains the key for the queried-for list + and traverses over around +\begin_inset Formula $\log_{2}n$ +\end_inset + + n nodes, where n means the number of participants in the network. + Because every query visits such a large amount of nodes, can every node + receive a large amount of existing keys in the DHT that can be used for + downloading metadata of BitTorrent files. +\end_layout + +\begin_layout Standard +This research paper focuses solely on harvesting metadata, not on downloading + shared files, primarily due to their extreme size. + Metadata conceptually aren't stored in the DHT (instead of file metadata, + lists of computer addresses, from which metadata can be downloaded, are + stored), but the DHT enables their discovery. +\end_layout + +\begin_layout Paragraph +Keywords +\end_layout + +\begin_layout Standard +distributed hash table, distributed systems, peer-to-peer network, data + mining, BitTorrent +\end_layout + +\end_body +\end_document |