Uporaba metod strojnega učenja za označevanje imenskih entitet v besedilih

Pečovnik, Aleš

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Title:	Uporaba metod strojnega učenja za označevanje imenskih entitet v besedilih
Authors:	ID Pečovnik, Aleš (Author) ID Ojsteršek, Milan (Mentor) More about this mentor...
Files:	MAG_Pecovnik_Ales_2019.pdf (1,38 MB) MD5: E24B55CBB742BE6525DD8E46EC0F7BE4 PID: 20.500.12556/dkum/374b292d-f5e2-455c-aa17-8cafe984b629
Language:	Slovenian
Work type:	Master's thesis/paper
Typology:	2.09 - Master's Thesis
Organization:	FERI - Faculty of Electrical Engineering and Computer Science
Abstract:	V magistrskem delu je opisano področje označevanja imenskih entitet vključno z razpoložljivimi pristopi. Podrobneje je razdelano področje strojnega učenja, tako nadzorovanega, delno nadzorovanega kot nenadzorovanega, z opisi nekaj pogosto uporabljanih metod. V magistrskem delu smo izdelali in preizkusili sistem označevanja imenskih entitet v besedilih, ki so napisana v slovenskem jeziku. Uporabili smo strojno učenje z metodo pogojnih naključnih polj. Opisani so posamezni deli sistema, uporabljen podatkovni vir za učenje sistema, za tem pa sam potek preizkušanja in dobljeni rezultati ter ugotovitve. Rezultati za kategoriji geografskih in lastnih imen so bili zadovoljivi, obstajajo pa še razne možnosti za nadaljnji napredek na tem področju, ki je tudi nujen zaradi naraščajočih potreb po uporabi takšnih sistemov.
Keywords:	obdelava naravnega jezika, strojno učenje, označevanje imenskih entitet, pogojna naključna polja
Place of publishing:	[Maribor
Publisher:	A. Pečovnik
Year of publishing:	2019
PID:	20.500.12556/DKUM-72860
UDC:	004.5:004.86(043.2)
COBISS.SI-ID:	22123286
NUK URN:	URN:SI:UM:DK:KQJ5EVKF
Publication date in DKUM:	30.01.2019
Views:	2739
Downloads:	197
Metadata:
Categories:	KTFMB - FERI
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Licences

License:	CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

Link:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:	The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:	02.12.2018

Secondary language

Language:	English
Title:	Named entity recognition in texts using machine learning methods
Abstract:	The thesis describes the field of named entity recognition along with possible approaches, where machine learning methods are depicted in details. This includes some of the most commonly used methods from supervised, semi supervised and unsupervised areas. The purpose of the Master thesis was to develop and test a system for named entity recognition in Slovenian texts using a machine learning method, whereby the conditional random field method was chosen. Individual parts of the system and the used data source are further elaborated, which is followed by the course of the experiment itself, together with the obtained results and findings. Results for the geographical and personal name entities were satisfactory; however, there are still various possibilities for further progress in the field of named entity recognition, which is also necessary due to the growing demand for such systems.
Keywords:	natural language processing, machine learning, named entity recognition, conditional random fields

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