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Discovering related scientific literature beyond semantic similarity: a new co-citation approach

  • Oscar Rodriguez-Prieto
  • Lourdes AraujoEmail author
  • Juan Martinez-Romo
Article
  • 25 Downloads

Abstract

We propose a new approach to recommend scientific literature, a domain in which the efficient organization and search of information is crucial. The proposed system relies on the hypothesis that two scientific articles are semantically related if they are co-cited more frequently than they would be by pure chance. This relationship can be quantified by the probability of co-citation, obtained from a null model that statistically defines what we consider pure chance. Looking for article pairs that minimize this probability, the system is able to recommend a ranking of articles in response to a given article. This system is included in the co-occurrence paradigm of the field. More specifically, it is based on co-cites so it can produce recommendations more focused on relatedness than on similarity. Evaluation has been performed on the ACL Anthology collection and on the DBLP dataset, and a new corpus has been compiled to evaluate the capacity of the proposal to find relationships beyond similarity. Results show that the system is able to provide, not only articles similar to the submitted one, but also articles presenting other kind of relations, thus providing diversity, i.e. connections to new topics.

Keywords

Scientific related literature Recommendations Co-citation Statistical model Semantic similarity 

Notes

Acknowledgements

This work has been partially supported by the Spanish Ministry of Science and Innovation within the projects PROSA-MED (TIN2016-77820-C3-2-R) and EXTRAE (IMIENS 2017).

Compliance with ethical standards

Conflict of Interest

The authors declare that they have no conflict of interest.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Computational Reflection Research-GroupUniversidad de OviedoOviedoSpain
  2. 2.Natural Language Processing and Information Retrieval GroupUniversidad Nacional de Educación a Distancia (UNED)MadridSpain
  3. 3.IMIENS: Instituto Mixto de InvestigaciónEscuela Nacional de SanidadMadridSpain

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