activity
20152026
most citedFast k-NN search

51 citations · 124 across the 9 of their papers we have counts for

collaborators

10 papers

gr-qc2026

Binary Black Hole Parameter Estimation with Hybrid CNN-Transformer Neural Networks

Panagiotis N. Sakellariou, Spiros V. Georgakopoulos, Sotiris Tasoulis +1

The detection of gravitational waves has revolutionized our ability to explore fundamental aspects of the Universe. Traditionally, modeled gravitational-wave signals have been iden…

cs.CL2024★ 3 cited

Who Writes the Review, Human or AI?

Panagiotis C. Theocharopoulos, Spiros V. Georgakopoulos, Sotiris K. Tasoulis +1

With the increasing use of Artificial Intelligence in Natural Language Processing, concerns have been raised regarding the detection of AI-generated text in various domains. This s…

cs.CL2023★ 17 cited

Detection of Fake Generated Scientific Abstracts

Panagiotis C. Theocharopoulos, Panagiotis Anagnostou, Anastasia Tsoukala +3

The widespread adoption of Large Language Models and publicly available ChatGPT has marked a significant turning point in the integration of Artificial Intelligence into people's e…

stat.ML2022★ 4 cited

HiPart: Hierarchical Divisive Clustering Toolbox

Panagiotis Anagnostou, Sotiris Tasoulis, Vassilis Plagianakos +1

This paper presents the HiPart package, an open-source native python library that provides efficient and interpret-able implementations of divisive hierarchical clustering algorith…

cs.LG2022

Supervised Dimensionality Reduction and Image Classification Utilizing Convolutional Autoencoders

Ioannis A. Nellas, Sotiris K. Tasoulis, Vassilis P. Plagianakos +1

The joint optimization of the reconstruction and classification error is a hard non convex problem, especially when a non linear mapping is utilized. In order to overcome this obst…

cs.LG2020

Approximate kNN Classification for Biomedical Data

Panagiotis Anagnostou, Petros T. Barmbas, Aristidis G. Vrahatis +1

We are in the era where the Big Data analytics has changed the way of interpreting the various biomedical phenomena, and as the generated data increase, the need for new machine le…

cs.CL2018★ 18 cited

Real Time Sentiment Change Detection of Twitter Data Streams

Sotiris K. Tasoulis, Aristidis G. Vrahatis, Spiros V. Georgakopoulos +1

In the past few years, there has been a huge growth in Twitter sentiment analysis having already provided a fair amount of research on sentiment detection of public opinion among T…

cs.CL2018★ 28 cited

Convolutional Neural Networks for Toxic Comment Classification

Spiros V. Georgakopoulos, Sotiris K. Tasoulis, Aristidis G. Vrahatis +1

Flood of information is produced in a daily basis through the global Internet usage arising from the on-line interactive communications among users. While this situation contribute…

stat.ML2015★ 51 cited

Fast k-NN search

Ville Hyvönen, Teemu Pitkänen, Sotiris Tasoulis +5

Efficient index structures for fast approximate nearest neighbor queries are required in many applications such as recommendation systems. In high-dimensional spaces, many conventi…

stat.ML2015★ 3 cited

Minimum Density Hyperplanes

Nicos G. Pavlidis, David P. Hofmeyr, Sotiris K. Tasoulis

Associating distinct groups of objects (clusters) with contiguous regions of high probability density (high-density clusters), is central to many statistical and machine learning a…