no code implementations • 24 Jan 2024 • Ignacio Segovia-Dominguez, Yuzhou Chen, Cuneyt G. Akcora, Zhiwei Zhen, Murat Kantarcioglu, Yulia R. Gel, Baris Coskunuzer
This framework empowers the exploration of data by simultaneously varying multiple scale parameters.
no code implementations • 24 Jan 2024 • Baris Coskunuzer, Ignacio Segovia-Dominguez, Yuzhou Chen, Yulia R. Gel
In particular, we propose a new approach, named \textit{Temporal MultiPersistence} (TMP), which produces multidimensional topological fingerprints of the data by using the existing single parameter topological summaries.
1 code implementation • 25 Mar 2023 • Yuzhou Chen, Yulia R. Gel
By invoking the machinery of persistent homology and the concept of landmarks, we propose a novel topological pooling layer and witness complex-based topological embedding mechanism that allow us to systematically integrate hidden topological information at both local and global levels.
no code implementations • 20 Mar 2023 • Sinan G. Aksoy, Ryan Bennink, Yuzhou Chen, José Frías, Yulia R. Gel, Bill Kay, Uwe Naumann, Carlos Ortiz Marrero, Anthony V. Petyuk, Sandip Roy, Ignacio Segovia-Dominguez, Nate Veldt, Stephen J. Young
We present and discuss seven different open problems in applied combinatorics.
1 code implementation • 24 Nov 2022 • Cuneyt Gurcan Akcora, Murat Kantarcioglu, Yulia R. Gel, Baris Coskunuzer
Second, we introduce a pruning algorithm for graphs to compute their persistence diagrams by removing the dominated vertices.
no code implementations • 14 Nov 2022 • Yuzhou Chen, Tian Jiang, Miguel Heleno, Alexandre Moreira, Yulia R. Gel
Nowadays, it is broadly recognized in the power system community that to meet the ever expanding energy sector's needs, it is no longer possible to rely solely on physics-based models and that reliable, timely and sustainable operation of energy systems is impossible without systematic integration of artificial intelligence (AI) tools.
1 code implementation • 13 Dec 2021 • Yuzhou Chen, Yulia R. Gel, H. Vincent Poor
Simplicial neural networks (SNN) have recently emerged as the newest direction in graph learning which expands the idea of convolutional architectures from node space to simplicial complexes on graphs.
1 code implementation • NeurIPS 2021 • Yuzhou Chen, Baris Coskunuzer, Yulia R. Gel
As a result, the new framework enables us to harness both the conventional information on the graph structure and information on the graph higher order topological properties.
no code implementations • 21 Oct 2021 • Ignacio Segovia-Dominguez, Huikyo Lee, Zhiwei Zhen, Yuzhou Chen, Michael Garay, Daniel Crichton, Rishabh Wagh, Yulia R. Gel
As multiple adverse events in 2021 illustrated, virtually all aspects of our societal functioning -- from water and food security to energy supply to healthcare -- more than ever depend on the dynamics of environmental factors.
1 code implementation • 10 May 2021 • Yuzhou Chen, Ignacio Segovia-Dominguez, Yulia R. Gel
There recently has been a surge of interest in developing a new class of deep learning (DL) architectures that integrate an explicit time dimension as a fundamental building block of learning and representation mechanisms.
1 code implementation • 10 Apr 2021 • Baris Coskunuzer, Cuneyt Gurcan Akcora, Ignacio Segovia Dominguez, Zhiwei Zhen, Murat Kantarcioglu, Yulia R. Gel
We derive theoretical guarantees on the stability of the new saw and multi-persistence grid functions and illustrate their applicability for graph classification tasks.
no code implementations • 15 Mar 2021 • Asim K. Dey, Vyacheslav Lyubchich, Yulia R. Gel
Insurance industry is one of the most vulnerable sectors to climate change.
no code implementations • 24 Sep 2020 • Marwah Soliman, Vyacheslav Lyubchich, Yulia R. Gel
As per the records of theWorld Health Organization, the first formally reported incidence of Zika virus occurred in Brazil in May 2015.
no code implementations • 22 Sep 2020 • Cuneyt G. Akcora, Sudhanva Purusotham, Yulia R. Gel, Mitchell Krawiec-Thayer, Murat Kantarcioglu
The number of blockchain users has tremendously grown in recent years.
no code implementations • 4 Sep 2020 • Yuzhou Chen, Yulia R. Gel, Konstantin Avrachenkov
Due to high utility in many applications, from social networks to blockchain to power grids, deep learning on non-Euclidean objects such as graphs and manifolds, coined Geometric Deep Learning (GDL), continues to gain an ever increasing interest.
1 code implementation • 7 Jul 2020 • Mustafa Safa Ozdayi, Murat Kantarcioglu, Yulia R. Gel
In addition, we also provide convergence rate analysis for our proposed scheme.
1 code implementation • 20 Dec 2019 • Yitao Li, Umar Islambekov, Cuneyt Akcora, Ekaterina Smirnova, Yulia R. Gel, Murat Kantarcioglu
Blockchain technology and, in particular, blockchain-based cryptocurrencies offer us information that has never been seen before in the financial world.
1 code implementation • 28 Oct 2019 • Umar Islambekov, Monisha Yuvaraj, Yulia R. Gel
While the applications of topological data analysis to change point detection are potentially very broad, in this paper we primarily focus on integrating topological concepts with the existing nonparametric methods for change point detection.
no code implementations • 25 Sep 2019 • Yuzhou Chen, Yulia R. Gel, Konstantin Avrachenkov
Due to high utility in many applications, from social networks to blockchain to power grids, deep learning on non-Euclidean objects such as graphs and manifolds continues to gain an ever increasing interest.
no code implementations • 18 Aug 2019 • Nazmiye Ceren Abay, Cuneyt Gurcan Akcora, Yulia R. Gel, Umar D. Islambekov, Murat Kantarcioglu, Yahui Tian, Bhavani Thuraisingham
With emergence of blockchain technologies and the associated cryptocurrencies, such as Bitcoin, understanding network dynamics behind Blockchain graphs has become a rapidly evolving research direction.
no code implementations • 19 Jun 2019 • Cuneyt Gurcan Akcora, Yitao Li, Yulia R. Gel, Murat Kantarcioglu
To our knowledge, none of the previous approaches have employed advanced data analytics techniques to automatically detect ransomware related transactions and malicious Bitcoin addresses.
Topological Data Analysis Cryptography and Security Distributed, Parallel, and Cluster Computing
1 code implementation • 8 Apr 2019 • Xin Huang, Yulia R. Gel
We develop a new density-based clustering algorithm named CRAD which is based on a new neighbor searching function with a robust data depth as the dissimilarity measure.
2 code implementations • 10 Aug 2017 • Cuneyt Gurcan Akcora, Yulia R. Gel, Murat Kantarcioglu
Our goal is to provide a concise but complete description of blockchain technology that is accessible to readers with no prior expertise in the field.
Computers and Society