Search Results for author: Elias Alevizos

Found 8 papers, 2 papers with code

Early Time-Series Classification Algorithms: An Empirical Comparison

no code implementations3 Mar 2022 Charilaos Akasiadis, Evgenios Kladis, Evangelos Michelioudakis, Elias Alevizos, Alexander Artikis

Our goal is to provide a framework for the evaluation and comparison of ETSC algorithms and to obtain intuition on how such approaches perform on real-life applications.

Classification Time Series +2

Symbolic Register Automata for Complex Event Recognition and Forecasting

1 code implementation8 Oct 2021 Elias Alevizos, Alexander Artikis, Georgios Paliouras

We show how SRA can be used in Complex Event Recognition in order to detect patterns upon streams of events, using our framework that provides declarative and compositional semantics, and that allows for a systematic treatment of such automata.

Complex Event Forecasting with Prediction Suffix Trees: Extended Technical Report

no code implementations1 Sep 2021 Elias Alevizos, Alexander Artikis, Georgios Paliouras

In particular, prediction suffix trees, being variable-order Markov models, have the ability to capture long-term dependencies in a stream by remembering only those past sequences that are informative enough.

Parallel Model Exploration for Tumor Treatment Simulations

1 code implementation25 Mar 2021 Charilaos Akasiadis, Miguel Ponce-de-Leon, Arnau Montagud, Evangelos Michelioudakis, Alexia Atsidakou, Elias Alevizos, Alexander Artikis, Alfonso Valencia, Georgios Paliouras

The main challenges are first to calibrate the simulators so as to reproduce real-world cases, and second, to search for specific values of the parameter space concerning effective drug treatments.

Computational Efficiency Drug Discovery

Wayeb: a Tool for Complex Event Forecasting

no code implementations16 Dec 2018 Elias Alevizos, Alexander Artikis, Georgios Paliouras

Complex Event Processing (CEP) systems have appeared in abundance during the last two decades.

Event Forecasting with Pattern Markov Chains

no code implementations27 Apr 2018 Elias Alevizos, Alexander Artikis, Georgios Paliouras

We present a system for online probabilistic event forecasting.

The Complex Event Recognition Group

no code implementations12 Feb 2018 Elias Alevizos, Alexander Artikis, Nikos Katzouris, Evangelos Michelioudakis, Georgios Paliouras

The Complex Event Recognition (CER) group is a research team, affiliated with the National Centre of Scientific Research "Demokritos" in Greece.

BIG-bench Machine Learning

Online Event Recognition from Moving Vessel Trajectories

no code implementations22 Jan 2016 Kostas Patroumpas, Elias Alevizos, Alexander Artikis, Marios Vodas, Nikos Pelekis, Yannis Theodoridis

We present a system for online monitoring of maritime activity over streaming positions from numerous vessels sailing at sea.

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