How can an idea be captured?


through WORDS or maybe with an IMAGE? with a GRAPH? a LOGIC?

I am an associate professor of Artificial Intelligence, Department of Computer Science, Technical University of Cluj-Napoca. My current work involves research on meaning representation through different modalities: text, vision, knowledge graphs and, of course, their combination. We have dense vectors, but how can learning be done such that the result is robust, general, adaptable?

Relevant Projects

Director:

  • Vocabulary mapping and duplicates identification - Research project in collaboration with msg systems ag (Munich), Germany : 2023-2024
  • Improve the existing cognitive search approach by exploring semistructured job descriptions - Research project in collaboration with msg systems ag (Munich), Germany : 2022-2023
  • Improve the existing cognitive search approach by extending the information extracted from semi-structured job descriptions and quickly learning from user feedback - Research project in collaboration with minnosphere, Germany : 2021-2022

Member:

  • New Optical Coherence Tomography Biomarkers Identified with Deep Learning for Risk Stratification of Patients with Age-related Macular Degeneration DeLArMaD, PED616 – UEFISCDI: 2022-2024
    See details: Application for resident training
    GO TO LLM answers for AMD questions
  • Extensive capitalization of experience in activities of Space and Security, PNIII-P1-1.2-1.2.1 PCCDI 2018 – member – UEFISCDI - 2018-2020
  • Cooperative Advanced Driving Assistance System Based on Smart Mobile Platforms and Road Side Units (SmartCoDrive), PCCA – member - UEFISCDI:2014-2016

Courses:

Artificial Intelligence

Heuristics for search space. Adversarial Search. Propositional Logic. First Order Logic. Probabilities. Hidden Markov Models

Intelligent Systems

Supervised machine learning. Decision Trees. Linear regression. Neural networks. Convolutional neural Networks. Transformer. Natural Language Processing

Formal Languages and Translators

Grammars. Regular grammars. Context free grammars. LL(k). LR(k).

Activity:

1st and 2nd place for HybridOM at BIO-ML OAEI 2024

HybridOM tool is an unsupervised approach for ontology matching that blend knowledge graphs with LLM for ontology matching. HybridOM was evaluated within Bio-ML 2024 track for the task of concept matching and it achieved the highest values for F1-score and Recall for most of the ontology pairs while maintaining a balance between precision and recall. The proposed method has been adapted for industrial usage in a human capital management product called msg.ProfileMap.

ClujTeam 7th place at SemEval 2025 Task 10 "Multilingual Characterization and Extraction of Narratives from Online News"

Our finetunned smolLM2 obtained 7th place, at 0.025 distance to the 1st team, in Subtask3: given a news article and a dominant narrative of the text of this article, generate a free-text explanation supporting the choice of this dominant narrative. The same smolLM2 was also finetuned to assign a role from a predefined role-taxonomy to list of mentions of named entities in the article.

Romanian strategy for Open Science and High Performance Computing

Strategic framework for the adoption and use of innovative technologies in public administration 2021 – 2027 – solutions for streamlining the activity, SIPOCA 704,
Activity A7.1. National strategic framework and financing instruments for Romania's participation in European initiatives and networks - support for evidence-based policies at the central level
- member of the HPC team working on Romanian strategy for Open Science and High Performance Computing (HPC)

Transilvania Digital Innovation Hub

2024 - Consulting activities on machine learning, Large Language Models, Knowledge Graphs, Retrieval Augmented Generation

2021 - member of the 2nd place team among Romanian teams, 37th place place worldwide

2023-2024 - advisor for TUCN teams participating in WiDS Datathon++ 2024 University Challenge
Global Winners: Andreea Onaci, Petrut Paul!

CLEF competition

1st place in the Task 2 - Biomedical question answering over interlinked data - QALD-4 (Question Answering over Linked Data 2014) challenge.

The winning system is presented in Q1 journal paper “Question answering over biomedical linked data with Grammatical Framework” and it consists of a controlled natural language for querying biomedical linked data from Diseasome, Sider, and DrugBank datasources

Visiting scholar

2016 - Department of Mathematics, West Virginia University Eberly College of Arts and Science, Morgantown, WV, USA, for maintenance activities of CoNtRol. CoNtRol is an open source framework for the analysis of chemical reaction networks. It is described in the paper published in Bioinformatics 2014: "CoNtRol: an open source framework for the analysis of chemical reaction networks"

Best paper

best paper award for B. Varga, A.Trambitas-Miron, A. Roth, A. Marginean, R. Slavescu, A. Groza - A natural language processing system for Romanian tourism, ASIR@ Fedcsis., Warsaw, Polonia, 2014

Relevant publications

  1. Marius Totoian, Anca Marginean, Philipp Blohm, Mir Nawab Hussain. "HybridOM: Ontology Matching using Hybrid Search", OM-2024: The 19th International Workshop on Ontology Matching collocated with the 23rd International Semantic Web Conference (ISWC 2024), November 11th, Baltimore, USA [1] [2]
  2. Corina Suciu, Anca Marginean, Vlad-Ioan Suciu, George Adrian Muntean, and Simona Delia Nicoară. "Diabetic Macular Edema Optical Coherence Tomography Biomarkers Detected with EfficientNetV2B1 and ConvNeXt" Diagnostics 14, no. 1: 76., 2024 https://doi.org/10.3390/diagnostics14010076
  3. Vanessa Mercea; Alin Razvan Paraschiv; Daniela Adriana Lacatus; Anca Marginean; Diana Besliu-Ionescu “A Machine Learning Enhanced Approach for Automated Sunquake Detection in Acoustic Emission Maps”, Solar Physics, 298, 4 (2023). https://doi.org/10.1007/s11207-022-02081-7
  4. George Muntean, Anca Marginean, Adrian Groza, Ioana Damian, Sara Alexia Roman, Mădălina Claudia Hapca, Maximilian Vlad Muntean, and Simona Delia Nicoară. "The Predictive Capabilities of Artificial Intelligence-Based OCT Analysis for Age-Related Macular Degeneration Progression—A Systematic Review" Diagnostics 13, no. 14: 2464., 2023, https://doi.org/10.3390/diagnostics13142464
  5. George Muntean, Adrian Groza, Anca Marginean, Radu Razvan Slavescu, Mihnea Gabriel Steiu, Valentin Muntean, and Simona Delia Nicoara. "Artificial Intelligence for Personalised Ophthalmology Residency Training" Journal of Clinical Medicine 12, no. 5: 1825. https://doi.org/10.3390/jcm12051825
  6. Andreea-Clara Pricopi, Alin Razvan Paraschiv, Diana Besliu-Ionescu, and Anca Marginean, “Predicting the Geoeffectiveness of CMEs Using Machine Learning”, The Astrophysical Journal, 934, Number 2, 2022, 10.3847/1538-4357/ac7962, https://iopscience.iop.org/article/10.3847/1538-4357/ac7962
  7. Anca Marginean, “Question Answering over Biomedica Linked Data with Grammatical Framework”, Semantic Web, Volume 8, issue 4, 2017, DOI: 10.3233/SW-160223, https://content.iospress.com/articles/semantic-web/sw223
  8. Pete Donnell, Murad Banaji, Anca Marginean, Casian Pantea, “CoNtRol: an open source framework for the analysis of chemical reaction networks”, Bioinformatics, Volume 30, Issue 11, June 2014, https://doi.org/10.1093/bioinformatics/btu063
  9. Adrian Groza, Anca Marginean, “Brave new world: AI in teaching and learning”, ICERI (IATED), Seville, Spain, 2023, https://doi.org/10.21125/iceri.2023.2221
  10. Marius Joldos, Gabriel Voitcu, Alin Suciu, Anca Hangan, Marius Echim; Marginean, Anca Marginean, “A Multi-threaded Particle-in-cell Approach for Kinetic Plasma Simulations”, ICCP, Cluj-Napoca, Romania, 2020, https://doi.org/10.1109/ICCP51029.2020.9266143
  11. Anca Marginean, Ralua Brehar, Mihai Negru, “Understanding pedestrian behaviour with pose estimation and recurrent networks”, ISEEE, Galati, Romania, 2019, https://doi.org/10.1109/ISEEE48094.2019.9136126
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