KP-USE: An Unsupervised Approach for Key-Phrases Extraction from Documents

TitreKP-USE: An Unsupervised Approach for Key-Phrases Extraction from Documents
Publication TypeJournal Article
Year of Publication2022
AuthorsAjallouda, L, Fagroud, FZ, Zellou, A, Lahmar, EB
JournalInternational Journal of Advanced Computer Science and Applications
Volume13
Pagination283-289
Mots-clésDeep learning, Embedding technique, Embeddings, Extraction, Graph-based classifications, Graphic methods, Key-phrase, Key-phrases extractions, Natural language processing systems, Performance, Research topics, Semantic similarity, Semantics, Signal encoding, Statistical graphs, Universal sentence encoder, Unsupervised approaches
Abstract

Automatic key-phrase extraction (AKE) is one of the most popular research topics in the field of natural language processing (NLP). Several techniques were used to extract the key-phrases: statistical, graph-based, classification algorithms, deep learning, and embedding techniques. AKE approaches that use embedding techniques are based on calculating the semantic similarity between a vector representing the document and the vectors representing the candidate phrases. However, most of these methods only give acceptable results in short texts such as abstracts paper, but on the other hand, their performance remains weak in long documents because it is represented by a single vector. Generally, the key phrases of a document are often expressed in certain parts of the document as, the title, the summary, and to a lesser extent in the introduction and the conclusion, and not of the entire document. For this reason, we propose in this paper KP-USE. A method extracts key-phrases from long documents based on the semantic similarity of candidate phrases to parts of the document containing keyphrases. KP-USE makes use of the Universal Sentence Encoder (USE) as an embedding method for text representation. We evaluated the performance of the proposed method on three datasets containing long papers, namely, NUS, Krapivin2009, and SemEval2010, where the results showed its performance outperforms recent AKE methods which are based on embedding techniques. © 2022. All Rights Reserved.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85129921696&doi=10.14569%2fIJACSA.2022.0130433&partnerID=40&md5=880d07ce539281dced3a51a82de6a16c
DOI10.14569/IJACSA.2022.0130433
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