Semantic Similarity versus Co-authorship Networks: A Detailed Comparison

Ionut Cristian Paraschiv, Mihai Dascalu, Stefan Trausan-Matu, Nicolae Nistor, Ambar Murillo Montes de Oca, Danielle S. McNamara

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review


Whether interested in personal work, in learning about trending topics, or in finding the structure of a specific domain, individuals' work of staying up-to-date has become more and more difficult due to the increasing information overflow. ln our previous work our focus has been to create a semantic annotation model accompanied by dedicated views to explore the semantic similarities between scientific articles. This paper focuses on applying our approach on a dataset of 519 project proposal abstracts, with the intention to bring value to the current indexation methodologies that rely primarily on co- citations and keyword matching. Our experiment uses various Social Network Analysis metrics to compare the rankings generated by two complementary models relying on semantic similarity and co-authorship networks. The two models are statistically different based on representative project associations, are significantly correlated in terms of project rankings by eccentricity and closeness centrality, and the semantic similarity network is denser.
Original languageEnglish
Title of host publication21st International Conference on Control Systems and Computer Science (CSCS)
ISBN (Electronic)2379-0482
Publication statusPublished - 7 Jul 2017
Externally publishedYes
Event21st Int. Conf. on Control Systems and Computer Science (CSCS21) - Bucharest, Romania
Duration: 29 May 201731 May 2017


Conference21st Int. Conf. on Control Systems and Computer Science (CSCS21)
Abbreviated titleCSCS21
Internet address


  • semantic similarity
  • discourse analysis
  • co-authorship networks
  • social network analysis


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