Incorporating Deep Median Networks for Arabic Document Retrieval Using Word Embeddings-Based Query Expansion

• Published in: Journal of information science theory and practice Vol. 12; no. 3; pp. 36 - 48
• Main Authors: Farhan, Yasir Hadi, Shakir, Mohanaad, Tareq, Mustafa Abd, Shannaq, Boumedyen
• Format: Journal Article
• Language: English
• Published: Daejeon Korea Institute of Science and Technology Information 01.09.2024; 한국과학기술정보연구원
• Subjects: arabic document retrieval; Arabic language; automatic query expansion; deep median networks; Information retrieval; natural language processing; Vocabularies & taxonomies; word embedding; 문헌정보학
• ISSN: 2287-9099; 2287-4577
• DOI: 10.1633/JISTaP.2024.12.3.3

The information retrieval (IR) process often encounters a challenge known as query-document vocabulary mismatch, where user queries do not align with document content, impacting search effectiveness. Automatic query expansion (AQE) techniques aim to mitigate this issue by augmenting user queries with related terms or synonyms. Word embedding, particularly Word2Vec, has gained prominence for AQE due to its ability to represent words as real-number vectors. However, AQE methods typically expand individual query terms, potentially leading to query drift if not carefully selected. To address this, researchers propose utilizing median vectors derived from deep median networks to capture query similarity comprehensively. Integrating median vectors into candidate term generation and combining them with the BM25 probabilistic model and two IR strategies (EQE1 and V2Q) yields promising results, outperforming baseline methods in experimental settings.