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Towards Heterogeneous Network Alignment: Design and Implementation of a Large-Scale Data Processing Framework

  • Marianna Milano
  • Pierangelo Veltri
  • Mario Cannataro
  • Pietro H. GuzziEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11339)

Abstract

The importance of the use of networks to model and analyse biological data and the interplay of bio-molecules is widely recognised. Consequently, many algorithms for the analysis and the comparison of networks (such as alignment algorithms) have been developed in the past. Recently, many different approaches tried to integrate into a single model the interplay of different molecules, such as genes, transcription factors and microRNAs. A possible formalism to model such scenario comes from node coloured networks (or heterogeneous networks) implemented as node/ edge-coloured graphs. Consequently, the need for the introduction of alignment algorithms able to analyse heterogeneous networks arises. To the best of our knowledge, all the existing algorithms are not able to mine heterogeneous networks. We propose a two-step alignment strategy that receives as input two heterogeneous networks (node-coloured graphs) and a similarity function among nodes of two networks extending the previous formulations. We first build a single alignment graph. Then we mine this graph extracting relevant subgraphs. Despite this simple approach, the analysis of such networks relies on graph and subgraph isomorphism and the size of the data is still growing. Therefore the use of high-performance data analytics framework is needed. We here present HetNetAligner a framework built on top of Apache Spark. We also implemented our algorithm, and we tested it on some selected heterogeneous biological networks. Preliminary results confirm that our method may extract relevant knowledge from biological data reducing the computational time.

Keywords

Heterogeneous network Network alignment Apache Spark 

Notes

Acknowledgements

This work has been partially supported by Fondo di Finanziamento per le Attivitá Base di Ricerca (FFABR 2017) of Prof. Pietro Hiram Guzzi.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Medical and Surgical ScienceUniversity Magna GræciaCatanzaroItaly
  2. 2.Data Analytics Research CentreUniversity of CatanzaroCatanzaroItaly

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