Udesh Kumarasinghe | University of Colombo, Sri Lanka (original) (raw)

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Papers by Udesh Kumarasinghe

Research paper thumbnail of HeteroGuard: Defending Heterogeneous Graph Neural Networks against Adversarial Attacks

2022 IEEE International Conference on Data Mining Workshops (ICDMW)

Research paper thumbnail of PDNS-Net: A Large Heterogeneous Graph Benchmark Dataset of Network Resolutions for Graph Learning

ArXiv, 2022

In order to advance the state of the art in graph learning algorithms, it is necessary to constru... more In order to advance the state of the art in graph learning algorithms, it is necessary to construct large real-world datasets. While there are many benchmark datasets for homogeneous graphs, only a few of them are available for heterogeneous graphs. Furthermore, the latter graphs are small in size rendering them insufficient to understand how graph learning algorithms perform in terms of classification metrics and computational resource utilization. We introduce, PDNS-Net, the largest public heterogeneous graph dataset containing 447K nodes and 897K edges for the malicious domain classification task. Compared to the popular heterogeneous datasets IMDB and DBLP, PDNS-Net is 38 and 17 times bigger respectively. We provide a detailed analysis of PDNS-Net including the data collection methodology, heterogeneous graph construction, descriptive statistics and preliminary graph classification performance. The dataset is publicly available at https://github.com/qcri/PDNSNet. Our preliminary...

Research paper thumbnail of HeteroGuard: Defending Heterogeneous Graph Neural Networks against Adversarial Attacks

2022 IEEE International Conference on Data Mining Workshops (ICDMW)

Research paper thumbnail of PDNS-Net: A Large Heterogeneous Graph Benchmark Dataset of Network Resolutions for Graph Learning

ArXiv, 2022

In order to advance the state of the art in graph learning algorithms, it is necessary to constru... more In order to advance the state of the art in graph learning algorithms, it is necessary to construct large real-world datasets. While there are many benchmark datasets for homogeneous graphs, only a few of them are available for heterogeneous graphs. Furthermore, the latter graphs are small in size rendering them insufficient to understand how graph learning algorithms perform in terms of classification metrics and computational resource utilization. We introduce, PDNS-Net, the largest public heterogeneous graph dataset containing 447K nodes and 897K edges for the malicious domain classification task. Compared to the popular heterogeneous datasets IMDB and DBLP, PDNS-Net is 38 and 17 times bigger respectively. We provide a detailed analysis of PDNS-Net including the data collection methodology, heterogeneous graph construction, descriptive statistics and preliminary graph classification performance. The dataset is publicly available at https://github.com/qcri/PDNSNet. Our preliminary...

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