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undergraduate thesis
Vektorska reprezentacija teksta
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2023. urn:nbn:hr:168:783062
Mesić, Fran
University of Zagreb
Faculty of Electrical Engineering and Computing

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Mesić, F. (2023). Vektorska reprezentacija teksta (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:783062

Mesić, Fran. "Vektorska reprezentacija teksta." Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2023. https://urn.nsk.hr/urn:nbn:hr:168:783062

Mesić, Fran. "Vektorska reprezentacija teksta." Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2023. https://urn.nsk.hr/urn:nbn:hr:168:783062

Mesić, F. (2023). 'Vektorska reprezentacija teksta', Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 18 November 2024, https://urn.nsk.hr/urn:nbn:hr:168:783062

Mesić F. Vektorska reprezentacija teksta [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2023 [cited 2024 November 18] Available at: https://urn.nsk.hr/urn:nbn:hr:168:783062

F. Mesić, "Vektorska reprezentacija teksta", Undergraduate thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:168:783062

Metadata
TitleVektorska reprezentacija teksta
Title (english)Vectorial text representation
AuthorFran Mesić
MentorMario Bukal (mentor)
Committee memberMario Bukal (predsjednik povjerenstva)
Committee memberDomagoj Vlah (član povjerenstva)
Committee memberJosip Žubrinić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2023-02-06, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Abstract
U ovom radu prikazana je hijerarhija četiriju modela vektorizacije teksta. BoW (engl. Bag of words) model sastoji se od najjednostavnijeg prebrojavanja broja pojavljivanja pojedine riječi u tekstu. Njegova primjena je najčešće u klasifikaciji dokumenata. „Bag of n-grams“ model proširuje BoW model tako što uzima više riječi odjednom i time dobiva kontekst, ali pod cijenu veće dimenzionalnosti. TF-IDF (engl. Term-Frequency Inverse-Document-Frequency) model unaprjeđuje BoW model tako što skalira broj pojavljivanja te uzima u obzir i broj dokumenata u kojima se pojam nalazi. Najčešća primjena je u području povrata informacija. Konačno, BE25 model proširuje TF-IDF model tako što za relevantnost uzima u obzir i odnose duljina tekstova te optimizira neke od jednadžbi TF-IDF-a.
Abstract (english)
In this thesis, a hierarchy of four text vectorization models is presented. The BoW (Bag of words) model consists of the simplest counting of the number of occurrences of a single word in a text. Its application is most often in the classification of documents. The "Bag of n-grams" model extends the BoW model by taking multiple words at once, thus getting the context, but at the expense of higher dimensionality. TF-IDF (Term-Frequency Inverse-Document-Frequency) model improves BoW model by scaling the number of occurrences and taking into account the number of documents in which the word appears. The most common application is in the area of information retrieval. Finally, the BE25 model extends the TF-IDF model by taking into account text length relationships and optimizing some of the TF-IDF equations.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:783062
Study programmeTitle: Computing
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
Type of resourceText
File originBorn digital
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Created on2023-10-11 09:48:23