Author

Hristina N. Kulina

Observed names: H N Kulina, H. Kulina, Hristina Kulina, Hristina N Kulina

Institution: Plovdiv University

Observed institution: Plovdiv University

ORCID: 0000-0003-4200-773X

Observed ORCID: 0000-0003-4200-773X

OpenAlex ID: A5089541658

Assessment of Students’ Achievements and Competencies in Mathematics Using CART and CART Ensembles and Bagging with Combined Model Improvement by MARS

2020 · Snezhana Gocheva-Ilieva, Hristina Kulina, et al. · Mathematics · 22

Predicting the 305-Day Milk Yield of Holstein-Friesian Cows Depending on the Conformation Traits and Farm Using Simplified Selective Ensembles

2022 · Snezhana Gocheva-Ilieva, Antoaneta Yordanova, et al. · Mathematics · 13

Investigation of binary orthogonal arrays via their distance distributions

2013 · P. Boyvalenkov, H. Kulina · Problems of Information Transmission · 12

Multi-Step Ahead Ex-Ante Forecasting of Air Pollutants Using Machine Learning

2023 · Snezhana Gocheva-Ilieva, Atanas Ivanov, et al. · Mathematics · 10

Polynomial techniques for investigation of spherical designs

2008 · Silvia Boumova, Peter Boyvalenkov, et al. · Designs Codes and Cryptography · 10

Characterization of metalloanticancer capacity of an agglutinin from wheat

2012 · Vanya P Bogoeva, Lidiya P Petrova, et al. · Molecular BioSystems · 7

Interaction of Wheat Germ Agglutinin with Porphyrin Compounds—Potential Anticancer Agents

2011 · Vanya Bogoeva, Lidiya Petrova, et al. · Biotechnology & Biotechnological Equipment · 7

Investigation of Equilibrium in Oligopoly Markets with the Help of Tripled Fixed Points in Banach Spaces

2024 · Atanas Ilchev, Vanya Ivanova, et al. · Econometrics · 6

Modelling and Forecasting of EUR/USD Exchange Rate Using Ensemble Learning Approach

2022 · Ivaylo V. Boyoukliev, Hristina N. Kulina, et al. · Cybernetics and Information Technologies · 6

Nonexistence of binary orthogonal arrays via their distance distributions

2015 · P. Boyvalenkov, H. Kulina, et al. · Problems of Information Transmission · 6

Using principal component analysis and general path seeker regression for investigation of air pollution and CO modeling

2015 · A. Ivanov, D. Voynikova, et al. · AIP conference proceedings · 6

Guarded Language Operators as Contractions in a Length-Based Ultrametric Space

2026 · Hristo Hristov, Atanas Ilchev, et al. · Mathematics · 4

Positive Definite Solution of System of Matrix Equations with X−k and Y−l via Coupled Fixed Point Theorem in Partially Ordered Spaces

2025 · Aynur Ali, Cvetelina Dinkova, et al. · Axioms · 4

Modeling the Tripodal Mobile Market Using Response Functions Instead of Payoff Maximization

2025 · Aynur Ali, Atanas Ilchev, et al. · Mathematics · 4

A Research of Adolescents Physical Activity During Their Free Time in City of Plovdiv, Bulgaria

2019 · Elena Merdzanova, Gergana Petrova, et al. · Journal of IMAB - Annual Proceeding (Scientific Papers) · 4

Data Mining for Statistical Evaluation of Summative and Competency-Based Assessments in Mathematics

2019 · Snezhana Gocheva-Ilieva, Marta Teofilova, et al. · Advances in intelligent systems and computing · 4

Integrating of competences in mathematics through software — case study

2018 · Hristina N. Kulina, Snezhana G. Gocheva-Ilieva, et al. · IEEE Global Engineering Education Conference (EDUCON) · 4

Classification and regression tree analysis in modeling the milk yield and conformation traits for Holstein cows in Bulgaria.

2015 · Antoaneta Yordanova, Snezhana Gocheva-Ilieva, et al. · Bulgarian Portal for Open Science · 4

Preliminary Characterization of Glyceride Oil Content and Tocopherol Composition in Seeds from Selected Wild Plant Species of the Bulgarian Flora

2025 · Zhana Petkova, Ginka Antova, et al. · Molecules · 3

Furniture market demand forecasting using machine learning approaches

2023 · P E Yaneva, H N Kulina · Journal of Physics Conference Series · 3

Ensemble Learning for Predicting the Tensile Strength of Alloy Steels from Chemical Composition and Processing Parameters

2022 · Hristina Kulina, Mariana Koleva-Petrova, et al. · International Conference on Electrical, Computer, Communications and Mechatronics Engineering (ICECCME) · 3

Time series modeling and forecasting of deposits in foreign currency using CART ensemble and bagging

2022 · I. Boyoukliev, S. Gocheva-Ilieva, et al. · AIP conference proceedings · 3

Random forest models of 305-days milk yield for Holstein cows in Bulgaria

2020 · A. Yordanova, H. Kulina · AIP conference proceedings · 3

Binding of Antitumor Compounds to Wheat Protein

2013 · Lidiya Petrova, Hristina Kulina, et al. · Biotechnology & Biotechnological Equipment · 3

A Novel Cytokinin-Binding Property of Mistletoe Lectin I fromViscum Album

2013 · Vanya Bogoeva, Ivan Ivanov, et al. · Biotechnology & Biotechnological Equipment · 3

Works count: 40

Citation count: 167

H-index: 7

I10-index: 5