Search Results for author: Ljupčo Todorovski

Found 9 papers, 2 papers with code

Efficient Generator of Mathematical Expressions for Symbolic Regression

1 code implementation20 Feb 2023 Sebastian Mežnar, Sašo Džeroski, Ljupčo Todorovski

We empirically show that HVAE can be trained efficiently with small corpora of mathematical expressions and can accurately encode expressions into a smooth low-dimensional latent space.

Evolutionary Algorithms regression +1

P(Expression|Grammar): Probability of deriving an algebraic expression with a probabilistic context-free grammar

no code implementations1 Dec 2022 Urh Primožič, Ljupčo Todorovski, Matej Petković

We then present specific grammars for generating linear, polynomial, and rational expressions, where algorithms for calculating the probability of a given expression exist.

regression Symbolic Regression

Comprehensive Comparative Study of Multi-Label Classification Methods

no code implementations14 Feb 2021 Jasmin Bogatinovski, Ljupčo Todorovski, Sašo Džeroski, Dragi Kocev

Several studies provide reviews of methods and datasets for MLC and a few provide empirical comparisons of MLC methods.

Classification General Classification +1

Probabilistic Grammars for Equation Discovery

1 code implementation1 Dec 2020 Jure Brence, Ljupčo Todorovski, Sašo Džeroski

Equation discovery, also known as symbolic regression, is a type of automated modeling that discovers scientific laws, expressed in the form of equations, from observed data and expert knowledge.

Symbolic Regression

Equation Discovery for Nonlinear System Identification

no code implementations1 Jul 2019 Nikola Simidjievski, Ljupčo Todorovski, Juš Kocijan, Sašo Džeroski

In this paper, recent developments of the equation discovery method called process-based modeling, suited for nonlinear system identification, are elaborated and illustrated on two continuous-time case studies.

The Influence of Feature Representation of Text on the Performance of Document Classification

no code implementations5 Jul 2017 Sanda Martinčić-Ipšić, Tanja Miličić, Ljupčo Todorovski

In this study, we measure the performance of the document classifiers trained using the method of random forests for features generated the three models and their variants.

Document Classification General Classification

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