no code implementations • 11 Jun 2024 • Boya Ma, Maxwell McNeil, Abram Magner, Petko Bogdanov
Furthermore, we demonstrate the scalability and quality of LRMDS in both synthetic and real-world datasets and for a range of coding dictionaries.
1 code implementation • 18 Sep 2023 • Maxwell McNeil, Petko Bogdanov
In some cases side information is available about the tensor modes.
no code implementations • 24 Dec 2022 • Lin Zhang, Nicholas Moskwa, Melinda Larsen, Petko Bogdanov
We address these challenges within an unsupervised framework for joint subnetwork and instance selection in network data, called UISS, via a convex self-representation objective.
no code implementations • 22 Sep 2021 • Abram Magner, Carolyn Kaminski, Petko Bogdanov
We highlight one such phenomenon -- temporal distortion -- caused by a misalignment between the rate at which observations of a cascade process are made and the rate at which the process itself operates, and argue that failure to correct for it results in degradation of performance on downstream statistical tasks.
no code implementations • 25 Jun 2021 • Maxwell McNeil, Lin Zhang, Petko Bogdanov
We propose a general, dictionary-based framework for temporal graph signal decomposition (TGSD).
no code implementations • 7 May 2020 • Wei Xiong, Karyn Doke, Petko Bogdanov, Mariya Zheleva
While critical for the practical progress of spectrum sharing, modulation recognition has so far been investigated under unrealistic assumptions: (i) a transmitter's bandwidth must be scanned alone and in full, (ii) prior knowledge of the technology must be available and (iii) a transmitter must be trustworthy.
no code implementations • 24 Mar 2019 • Lin Zhang, Petko Bogdanov
In this work we propose an optimization framework for discriminative subgraph learning (DSL) which simultaneously enforces (i) sparsity, (ii) connectivity and (iii) high discriminative power of the resulting subgraphs of features.
no code implementations • 19 Dec 2015 • Xuan Hong Dang, Ambuj K. Singh, Petko Bogdanov, Hongyuan You, Bayyuan Hsu
Data mining practitioners are facing challenges from data with network structure.
no code implementations • 17 Oct 2015 • Victor Amelkin, Ambuj Singh, Petko Bogdanov
In this work, we introduce Social Network Distance (SND) - a distance measure that quantifies the "cost" of evolution of one snapshot of a social network into another snapshot under various models of polar opinion propagation.