Search Results for author: Gjorgjina Cenikj

Found 9 papers, 2 papers with code

SAFFRON: tranSfer leArning For Food-disease RelatiOn extractioN

no code implementations NAACL (BioNLP) 2021 Gjorgjina Cenikj, Tome Eftimov, Barbara Koroušić Seljak

The accelerating growth of big data in the biomedical domain, with an endless amount of electronic health records and more than 30 million citations and abstracts in PubMed, introduces the need for automatic structuring of textual biomedical data.

Relation Relation Extraction +1

TransOpt: Transformer-based Representation Learning for Optimization Problem Classification

no code implementations29 Nov 2023 Gjorgjina Cenikj, Gašper Petelin, Tome Eftimov

We propose a representation of optimization problem instances using a transformer-based neural network architecture trained for the task of problem classification of the 24 problem classes from the Black-box Optimization Benchmarking (BBOB) benchmark.

Benchmarking Classification +1

PS-AAS: Portfolio Selection for Automated Algorithm Selection in Black-Box Optimization

no code implementations14 Oct 2023 Ana Kostovska, Gjorgjina Cenikj, Diederick Vermetten, Anja Jankovic, Ana Nikolikj, Urban Skvorc, Peter Korosec, Carola Doerr, Tome Eftimov

Our proposed method creates algorithm behavior meta-representations, constructs a graph from a set of algorithms based on their meta-representation similarity, and applies a graph algorithm to select a final portfolio of diverse, representative, and non-redundant algorithms.

DynamoRep: Trajectory-Based Population Dynamics for Classification of Black-box Optimization Problems

1 code implementation8 Jun 2023 Gjorgjina Cenikj, Gašper Petelin, Carola Doerr, Peter Korošec, Tome Eftimov

The application of machine learning (ML) models to the analysis of optimization algorithms requires the representation of optimization problems using numerical features.

Benchmarking Descriptive

Assessing the Generalizability of a Performance Predictive Model

no code implementations31 May 2023 Ana Nikolikj, Gjorgjina Cenikj, Gordana Ispirova, Diederick Vermetten, Ryan Dieter Lang, Andries Petrus Engelbrecht, Carola Doerr, Peter Korošec, Tome Eftimov

A key component of automated algorithm selection and configuration, which in most cases are performed using supervised machine learning (ML) methods is a good-performing predictive model.

Improving Nevergrad's Algorithm Selection Wizard NGOpt through Automated Algorithm Configuration

no code implementations9 Sep 2022 Risto Trajanov, Ana Nikolikj, Gjorgjina Cenikj, Fabien Teytaud, Mathurin Videau, Olivier Teytaud, Tome Eftimov, Manuel López-Ibáñez, Carola Doerr

Algorithm selection wizards are effective and versatile tools that automatically select an optimization algorithm given high-level information about the problem and available computational resources, such as number and type of decision variables, maximal number of evaluations, possibility to parallelize evaluations, etc.

SELECTOR: Selecting a Representative Benchmark Suite for Reproducible Statistical Comparison

no code implementations25 Apr 2022 Gjorgjina Cenikj, Ryan Dieter Lang, Andries Petrus Engelbrecht, Carola Doerr, Peter Korošec, Tome Eftimov

Fair algorithm evaluation is conditioned on the existence of high-quality benchmark datasets that are non-redundant and are representative of typical optimization scenarios.

FoodChem: A food-chemical relation extraction model

1 code implementation5 Oct 2021 Gjorgjina Cenikj, Barbara Koroušić Seljak, Tome Eftimov

In this paper, we present FoodChem, a new Relation Extraction (RE) model for identifying chemicals present in the composition of food entities, based on textual information provided in biomedical peer-reviewed scientific literature.

Binary Classification Relation +1

Less is more: Selecting the right benchmarking set of data for time series classification

no code implementations29 Sep 2021 Tome Eftimov, Gašper Petelin, Gjorgjina Cenikj, Ana Kostovska, Gordana Ispirova, Peter Korošec, Jasmin Bogatinovski

By observing discrepancy between the empirical results of the bootstrap evaluation and recently adapted practices in TSC literature when introducing novel methods we warn on the potentially harmful effects of tuning the methods on certain parts of the landscape (unless this is an explicit and desired goal of the study).

Benchmarking Time Series +2

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