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Ion Androutsopoulos

As seen in: Wiley Online Library, arXiv, First Monday
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Articles

[2503.16505] Scalable Evaluation of Online Facilitation Strategies via Synthetic Simulation of Discussions

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By Ion Androutsopoulos, John Pavlopoulos
| arXiv
[Submitted on 13 Mar 2025 ( v1 ), last revised 11 Sep 2025 (this version, v3)] Title:Scalable Evaluation of Online Facilitation Strategies via Synthetic Simulation of Discussions View a PDF of the paper titled Scalable Evaluation of Online Facilitation Strategies via Synthetic Simulation of Discussions, by Dimitris Tsirmpas and Ion Androutsopoulos and John Pavlopoulos View PDF HTML (experimental) Abstract:Limited large-scale evaluations exist for facilitation strategies of online discussions...
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Bank Competition, Loan Portfolio Concentration and Stock Price Crash Risk: The Role of Tone Ambiguity

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By George N. Leledakis, Emmanouil G. Pyrgiotakis, Ion Androutsopoulos, Nikolaos C. Gkoumas
| Wiley Online Library Verified
Introduction In the non-financial sector, stock price crash risk has attracted the interest of both academics and practitioners over the past few decades. The consensus in this literature is that stock price crash risk is explained by managerial bad-news hoarding through earnings management (Andreou, Andreou and Lambertides, 2021; Hutton, Marcus and Tehranian, 2009; Jin and Myers, 2006).
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[2402.06948] Should I try multiple optimizers when fine-tuning pre-trained Transformers for NLP tasks? Should I tune their hyperparameters?

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By Ion Androutsopoulos, Prodromos Malakasiotis, Stavros Toumpis
| arXiv
[Submitted on 10 Feb 2024] Title:Should I try multiple optimizers when fine-tuning pre-trained Transformers for NLP tasks? Should I tune their hyperparameters? Download a PDF of the paper titled Should I try multiple optimizers when fine-tuning pre-trained Transformers for NLP tasks?
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