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SubRosa: Determining Movie Similarities based on Subtitles

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2021

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Gesellschaft für Informatik, Bonn

Zusammenfassung

For streaming websites, media shopping platforms and movie databases, movie recommendation systems have become an important technology, where mostly hybrid methods of collaborative and content-based filtering on the basis of user ratings and user-generated content have proven to be effective. However, these methods can lead to popularity-biased results that show an under-representation of those movies for which only little user-generated data exists. In this paper we will discuss the possibility of generating movie recommendations that are not based on user-generated data or metadata, but solely on the content of the movies themselves, confining ourselves to movie dialog. We extract low-level features from movie subtitles by using methods from Information Retrieval, Natural Language Processing and Stylometry, and examine a possible correlation of these features' similarity with the overall movie similarity. In addition we present a novel web application called SubRosa (http://ch01.informatik.uni-leipzig.de:5001/), which can be used to interactively compare the results of different feature combinations.

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Luhmann, Jan; Burghardt, Manuel; Tiepmar, Jochen (2021): SubRosa: Determining Movie Similarities based on Subtitles. INFORMATIK 2020. DOI: 10.18420/inf2020_119. Gesellschaft für Informatik, Bonn. PISSN: 1617-5468. ISBN: 978-3-88579-701-2. pp. 1271-1280. Methoden und Anwendungen der Computational Humanities. Karlsruhe. 28. September - 2. Oktober 2020

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