2021
Authors
Azevedo, A; Sousa Pinto, A; Curado Malta, M;
Publication
Abstract
2022
Authors
Azevedo, A; Sousa Pinto, A; Curado Malta, M;
Publication
Abstract
2023
Authors
Azevedo, A; Sousa Pinto, A; Curado Malta, M;
Publication
Abstract
2024
Authors
Sadhu, S; Mallick, D; Namtirtha, A; Curado Malta, M; Dutta, A;
Publication
Proceedings of the 8th International Conference on Data Science and Management of Data (12th ACM IKDD CODS and 30th COMAD)
Abstract
2025
Authors
Fabio Couto; Mariana Curado Malta; António Lucas Soares;
Publication
IFIP advances in information and communication technology
Abstract
2024
Authors
Sadhu, S; Namtirtha, A; Malta, MC; Dutta, A;
Publication
SOCIAL NETWORK ANALYSIS AND MINING
Abstract
Influential spreaders are key nodes in networks that maximize or control the spreading processes. Many real-world systems are represented as weighted networks, and several indexing methods, such as weighted betweenness, closeness, k-shell decomposition, voterank, and mixed degree decomposition, among others, have been proposed to identify these influential nodes. However, these methods often face limitations such as high computational cost, non-monotonic rankings, and reliance on tunable parameters. To address these issues, this paper introduces a new tunable parameter-free method, Normalized Strength-Degree Centrality (nsd), which efficiently combines a node's normalized degree and strength to measure its influence across various network structures. Experimental results on eleven real and synthetic weighted networks show that nsd outperforms the existing methods in accurately identifying influential spreaders, strongly correlating to the Weighted Susceptible-Infected-Recovered (WSIR) model. Additionally, nsd is a parameter-free method that does not require time-consuming preprocessing to estimate rankings.
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