# Recommending Research Articles: A Multi-Level Chronological Learning-Based Approach Using Unsupervised Keyphrase Extraction and Lexical Similarity Calculation

> Research article (IEEE Access, 2021) · cited 15× · AI/ML

**Wikidata**: [openalex:W3214791869](https://www.wikidata.org/wiki/openalex:W3214791869)  
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