Petros Stavropoulos
Author directory2026
Towards Multidisciplinary Citance Analysis: A Novel Approach for Intent, Polarity, and Semantics Classification
Georgios Pantelakis | Petros Stavropoulos | Haris Papageorgiou
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Georgios Pantelakis | Petros Stavropoulos | Haris Papageorgiou
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
The rapid increase in research publications, particularly in computer science, presents significant challenges for researchers, reviewers, and institutions in performing comprehensive literature reviews. Traditional citance analysis, which mainly focuses on sentiment and citance intent, often misses important details. To address this, we introduce a new approach that combines three key aspects: Intent, Polarity, and Semantics. Using data from Semantic Scholar we classify citances based on this approach to create CitAn dataset which has 1,165 manually labeled citances from 80 subfields in Computer Science, Health Sciences, Bioinformatics, and Social Sciences and Humanities. Finally, we fine-tune state-of-the-art language models using this dataset, which yields promising results and paves the way for efficient citance analysis across various academic fields.
2023
Empowering Knowledge Discovery from Scientific Literature: A novel approach to Research Artifact Analysis
Petros Stavropoulos | Ioannis Lyris | Natalia Manola | Ioanna Grypari | Haris Papageorgiou
Proceedings of the 3rd Workshop for Natural Language Processing Open Source Software (NLP-OSS 2023)
Petros Stavropoulos | Ioannis Lyris | Natalia Manola | Ioanna Grypari | Haris Papageorgiou
Proceedings of the 3rd Workshop for Natural Language Processing Open Source Software (NLP-OSS 2023)
Knowledge extraction from scientific literature is a major issue, crucial to promoting transparency, reproducibility, and innovation in the research community. In this work, we present a novel approach towards the identification, extraction and analysis of dataset and code/software mentions within scientific literature. We introduce a comprehensive dataset, synthetically generated by ChatGPT and meticulously curated, augmented, and expanded with real snippets of scientific text from full-text publications in Computer Science using a human-in-the-loop process. The dataset contains snippets highlighting mentions of the two research artifact (RA) types: dataset and code/software, along with insightful metadata including their Name, Version, License, URL as well as the intended Usage and Provenance. We also fine-tune a simple Large Language Model (LLM) using Low-Rank Adaptation (LoRA) to transform the Research Artifact Analysis (RAA) into an instruction-based Question Answering (QA) task. Ultimately, we report the improvements in performance on the test set of our dataset when compared to other base LLM models. Our method provides a significant step towards facilitating accurate, effective, and efficient extraction of datasets and software from scientific papers, contributing to the challenges of reproducibility and reusability in scientific research.
2020
BioMRC: A Dataset for Biomedical Machine Reading Comprehension
Dimitris Pappas | Petros Stavropoulos | Ion Androutsopoulos | Ryan McDonald
Proceedings of the 19th SIGBioMed Workshop on Biomedical Language Processing
Dimitris Pappas | Petros Stavropoulos | Ion Androutsopoulos | Ryan McDonald
Proceedings of the 19th SIGBioMed Workshop on Biomedical Language Processing
We introduceBIOMRC, a large-scale cloze-style biomedical MRC dataset. Care was taken to reduce noise, compared to the previous BIOREAD dataset of Pappas et al. (2018). Experiments show that simple heuristics do not perform well on the new dataset and that two neural MRC models that had been tested on BIOREAD perform much better on BIOMRC, indicating that the new dataset is indeed less noisy or at least that its task is more feasible. Non-expert human performance is also higher on the new dataset compared to BIOREAD, and biomedical experts perform even better. We also introduce a new BERT-based MRC model, the best version of which substantially outperforms all other methods tested, reaching or surpassing the accuracy of biomedical experts in some experiments. We make the new dataset available in three different sizes, also releasing our code, and providing a leaderboard.