Search Results for author: Aristidis G. Vrahatis

Found 4 papers, 1 papers with code

Graph Neural Network approaches for single-cell data: A recent overview

no code implementations14 Oct 2023 Konstantinos Lazaros, Dimitris E. Koumadorakis, Panagiotis Vlamos, Aristidis G. Vrahatis

Graph Neural Networks (GNN) are reshaping our understanding of biomedicine and diseases by revealing the deep connections among genes and cells.

Data Integration Graph Attention +1

Approximate kNN Classification for Biomedical Data

no code implementations3 Dec 2020 Panagiotis Anagnostou, Petros T. Barmbas, Aristidis G. Vrahatis, Sotiris K. Tasoulis

Regarding the classification process for scRNA-seq data, an appropriate method is the k Nearest Neighbor (kNN) classifier since it is usually utilized for large-scale prediction tasks due to its simplicity, minimal parameterization, and model-free nature.

Classification General Classification

Real Time Sentiment Change Detection of Twitter Data Streams

no code implementations2 Apr 2018 Sotiris K. Tasoulis, Aristidis G. Vrahatis, Spiros V. Georgakopoulos, Vassilis P. Plagianakos

Given the fact that Twitter messages are generated constantly with dizzying rates, a huge volume of streaming data is created, thus there is an imperative need for accurate methods for knowledge discovery and mining of this information.

Change Detection Twitter Sentiment Analysis

Convolutional Neural Networks for Toxic Comment Classification

1 code implementation27 Feb 2018 Spiros V. Georgakopoulos, Sotiris K. Tasoulis, Aristidis G. Vrahatis, Vassilis P. Plagianakos

To justify this decision we choose to compare CNNs against the traditional bag-of-words approach for text analysis combined with a selection of algorithms proven to be very effective in text classification.

Cloud Computing General Classification +3

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