activity
20122026
most citedOn the asymptotic and practical complexity of solving bivariate systems over the reals

77 citations · 108 across the 8 of their papers we have counts for

collaborators

8 papers

cs.LG2026

On Imbalanced Regression with Hoeffding Trees

Pantia-Marina Alchirch, Dimitrios I. Diochnos

Many real-world applications generate continuous data streams for regression. Hoeffding trees and their variants have a long-standing tradition due to their effectiveness, either a…

cs.CV2024★ 7 cited

A Review of Pseudo-Labeling for Computer Vision

Patrick Kage, Jay C. Rothenberger, Pavlos Andreadis +1

Deep neural models have achieved state of the art performance on a wide range of problems in computer science, especially in computer vision. However, deep neural networks often re…

cs.CV2023

Meta Co-Training: Two Views are Better than One

Jay C. Rothenberger, Dimitrios I. Diochnos

In many critical computer vision scenarios unlabeled data is plentiful, but labels are scarce and difficult to obtain. As a result, semi-supervised learning which leverages unlabel…

cs.LG2019★ 10 cited

Lower Bounds for Adversarially Robust PAC Learning

Dimitrios I. Diochnos, Saeed Mahloujifar, Mohammad Mahmoody

In this work, we initiate a formal study of probably approximately correct (PAC) learning under evasion attacks, where the adversary's goal is to \emph{misclassify} the adversarial…

cs.LG2018★ 8 cited

Adversarial Risk and Robustness: General Definitions and Implications for the Uniform Distribution

Dimitrios I. Diochnos, Saeed Mahloujifar, Mohammad Mahmoody

We study adversarial perturbations when the instances are uniformly distributed over . We study both "inherent" bounds that apply to any problem and any classifier for s…

cs.LG2018★ 1 cited

The Curse of Concentration in Robust Learning: Evasion and Poisoning Attacks from Concentration of Measure

Saeed Mahloujifar, Dimitrios I. Diochnos, Mohammad Mahmoody

Many modern machine learning classifiers are shown to be vulnerable to adversarial perturbations of the instances. Despite a massive amount of work focusing on making classifiers r…

cs.AI2013★ 5 cited

Commonsense Reasoning and Large Network Analysis: A Computational Study of ConceptNet 4

Dimitrios I. Diochnos

In this report a computational study of ConceptNet 4 is performed using tools from the field of network analysis. Part I describes the process of extracting the data from the SQL d…

cs.SC2012★ 77 cited

On the asymptotic and practical complexity of solving bivariate systems over the reals

Dimitrios I. Diochnos, Ioannis Z. Emiris, Elias P. Tsigaridas

This paper is concerned with exact real solving of well-constrained, bivariate polynomial systems. The main problem is to isolate all common real roots in rational rectangles, and…