Publications
Robustness of Real-World Networks after Weight Thresholding with Strong Link Removal, JM John, M Bellingeri, DS Lekha, D Cassi, R Alfieri, Mathematics 12 (10), 1568 2024
A Procedure of Weight Thresholding on Complex Networks, JM John, DS Lekha, 2023 International Conference on Emerging Techniques in Computational … 2023
Effect of Weight Thresholding on the Robustness of Real-World Complex Networks to Central Node Attacks, JM John, M Bellingeri, DS Lekha, D Casdi, R Alfieri, Mathematics 11 (16), 3482 1 2023
Network Science and Climate Dynamics - A Mini Review, AS Babu, DS Lekha, Proceedings of the International Conference on Artificial Intelligence … 2023
The median of Sierpiński graphs, K Balakrishnan, M Changat, AM Hinz, DS Lekha, Discrete Applied Mathematics 319, 159-170 2 2022
Network Representation Learning : A Survey, RT Paul, DS Lekha, INTERNATIONAL CONFERENCE ON MATHEMATICS OF INTELLIGENT COMPUTING AND DATA … 2022
Climate Change Misinformation, N Krishna, DS Lekha, 4th International Conference on Computational Intelligence and Digital … 2022
Need for a Realistic Measure of Attack Severity in Centrality Based Node Attack Strategies, JM John, DS Lekha
Complex Networks & Their Applications X: Volume 1, Proceedings of the Tenth … 2022
Vulnerability of link-weighted complex networks in central attacks and fallback strategy
KB Divya P.B., Divya Sindhu Lekha, T.P. Johnson
Physica A: Statistical Mechanics and its ApplicationsDivya P B, D S Lekha, T P Johnson, K Balakrishnan: Vulnerability of link-weighted complex networks in central attacks and fallback strategy, Physica A: Statistical Mechanics and its Applications, Accepted, 20 November 2021
D S. Lekha, K. Balakrishnan: Central attacks in complex networks: A revisit with new fallback strategy, Physica A: Statistical Mechanics and its Applications, Volume 549, Pages 124347, DOI: 10.1016/j.physa.2020.124347.
K. Balakrishnan, M. Changat, A M. Hinz, D S. Lekha: The Median of Sierpiński Graphs, Discrete Applied Mathematics (Elsevier), 20 Feb 2021, In Press.
D S. Lekha, K. Balakrishnan: Central attacks in complex networks: A revisit with new fallback strategy, Physica A: Statistical Mechanics and its Applications, Volume 549, Pages 124347, DOI: 10.1016/j.physa.2020.124347.
K. Balakrishnan, D. S. Lekha, Sunil Kumar R.: Analysis of Co-authorship Network Based on Some Betweenness Centrality Concepts. Inderscience International Journal of Data Science 4 (2), 162-179, DOI: 10.1504/IJDS.2019.100322.
M. Changat, D. S. Lekha, S. Mohandas, H. M. Mulder, A. R. Subhamathi: Axiomatic characterization of the median and antimedian function on a complete graph minus a matching. Discrete Applied Mathematics DOI: 10.1016/j.dam.2016.04.013.
M. Changat, D. S. Lekha, A. R. Subhamathi: Algorithms for the remoteness function, and the median and antimedian sets in l1-graphs. International J. of Computing Science and Mathematics 11/2015; 6(5):480-491, DOI:10.1504/IJCSM.2015.072962.
M. Changat, D. S. Lekha, I. Peterin, A. R. Subhamathi, S. Špacapan: The median game. Discrete Optimization 08/2015; 17, DOI: 10.1016/j.disopt.2015.05.002.
M. Changat, D. S. Lekha, H. M. Mulder, A. R. Subhamathi: Axiomatic Characterization of the Median and Antimedian Functions on Cocktail-Party Graphs and Complete Graphs. In: Ganguly S., Krishnamurti R. (eds) Algorithms and Discrete Applied Mathematics. CALDAM 2015. LNCS, vol 8959. Springer, Cham., DOI: 10.1007/ 978-3-319-14974-5_14.
Conference Presentation
Attack Vulnerability of Complex Networks : A Bibliometric Analysis, Jisha Mariyam John and Divya Sindhu Lekha in the 8TH Satellite on QUANTIFYING SUCCESS, NETWORKS 2021, July 2, 2021
Security of Cyber-Physical Systems Under Budget-Constraints – A Complex Network Approach in the International Conference on Discrete Mathematics and Its Application to Network Science (ICDMANS-2018), July 7-10, 2018, BITS-Pilani, Goa Campus, Goa, India.
Budget Constrained Security Model in Power Grids in Workshop on Women in Cybersecurity Research (WCR ’18), May 25-26, 2018, IIITM-K, Kerala, India
Axiomatic Characterization of the Median and Antimedian Functions on Cocktail-Party Graphs and Complete Graphs in First International Conference, CALDAM 2015, February 8-10, 2015, IIT Kanpur, India.
Expert Sessions
Research Problem Identification and Formualtion in DTE Sponsored FDP on ‘Trajectory to Success in Research’ organized by the Department of Information Technology , Govt Engineering College, Palakkad, 29 October 2021
Bibliographic Data Analysis (Online) as part of Refresher Course in Data Analytics and Machine Learning, 02 March 2021, UGC-Human Resource Development Centre, University of Kerala.
“Story of Unexplored Networks” (Research Explorations on Graphs and Complex Networks), 12 March 2021 – Online - as part of WOMEN on SCIENCE - Lecture Series 2021, St Teresas College, Ernakulam.
Research Writing, 25 March 2021 as part of Online FDP on Research Tools – Online Hands on Training, NSS College of Engineering Palakkad.
Citation Networks as part of Refresher Course in Citation Network Analysis and Exploratory Data Analysis Using R, 20 February 2020, UGC-HRD Centre, University of Kerala, Karyavattom, Thiruvananthapuram.
Research Methodology as part of Faculty Development Programme on Computer Science for Higher Secondary School Teachers, 13 February 2020, Department of Computer Applications CUSAT Kochi.
Hands-On: Network Analysis Using Python as part of National Workshop on Graphs and Complex Networks, 03-07 February 2020, Department of Computer Applications CUSAT Kochi.
Invited Talks
1. Complex Networks: underlying patterns in every system at National Conference on EMERGING TECHNOLOGIES IN COMPUTER SCIENCE, NCETCS-2019”, Science, Sree Ayyappa College, Eramallikkara. India, 9 February 2019.
2. Finding Center of Outer Planar Graphs: A Dynamic Graph Approach at Seminar for Discrete Mathematics, Institute of Mathematics, Physics and Mechanics, University of Maribor, Slovenia,18 June 2012.
Reviewer
IEEE Transactions on Information Forensics and Security
Physica A: Statistical Mechanics and its Applications
Journal of Complex Networks, Oxford University Press.
Discrete Applied Mathematics, The Journal of Combinatorial Algorithms, Informatics and Computational Sciences, Elsevier
Visited Institute of Mathematics, Physics and Mechanics, University of Maribor, Slovenia in the period June 15th to 29th 2012, as part of bilateral Indo-Slovenian project on Graph Theory.
Masters Thesis Intership at Tata Institute of Fundamental Research, Mumbai (Jan 2010-April 2010)
