Zobrazeno 1 - 10
of 2 480
pro vyhledávání: '"Christopoulou AN"'
Preference Optimization (PO) has proven an effective step for aligning language models to human-desired behaviors. Current variants, following the offline Direct Preference Optimization objective, have focused on a strict setting where all tokens are
Externí odkaz:
http://arxiv.org/abs/2410.05102
NSVS 14256825: period variation and orbital stability analysis of two possible substellar companions
Publikováno v:
A&A 691, A115 (2024)
Recent period investigations of the Post-Common Envelop Binary (PCEB) NSVS 14256825 suggested that two circumbinary companions were necessary to explain the observed Eclipse Timing Variations (ETVs). Our objective was to search for the best-fitting c
Externí odkaz:
http://arxiv.org/abs/2408.15358
Autor:
Fountas, Zafeirios, Benfeghoul, Martin A, Oomerjee, Adnan, Christopoulou, Fenia, Lampouras, Gerasimos, Bou-Ammar, Haitham, Wang, Jun
Large language models (LLMs) have shown remarkable capabilities, but still struggle with processing extensive contexts, limiting their ability to maintain coherence and accuracy over long sequences. In contrast, the human brain excels at organising a
Externí odkaz:
http://arxiv.org/abs/2407.09450
Low mass ratio systems (LMR) are a very interesting class of contact eclipsing binaries challenging the theoretical models of stability. These systems are also considered possible progenitors of the rare low-mass optical transients called red novae.
Externí odkaz:
http://arxiv.org/abs/2405.10614
Large pre-trained language models have recently been expanded and applied to programming language tasks with great success, often through further pre-training of a strictly-natural language model--where training sequences typically contain both natur
Externí odkaz:
http://arxiv.org/abs/2402.05783
Autor:
Christopoulou, Georgia, Di Paola, Cono, Elzinga, Floris Eelke, Jallat, Aurelie, Ramo, David Muñoz, Krompiec, Michal
Catalytic processes are vital in the chemical industry, with nitrogen-to-ammonia conversion being a major industrial process. Designing catalysts relies on computational chemistry methods like Density Functional Theory (DFT), which have limitations i
Externí odkaz:
http://arxiv.org/abs/2310.10478
Autor:
Papageorgiou, A., Christopoulou, P. -E., Lalounta, E., Lopes, C. E. Ferreira, Catelan, M., Drake, A. J., Xantzios, P., Alikakos, I.
We present a multi-band photometric analysis of CRTS J163819.6+03485, the first low mass ratio (LMR) contact binary system with a period under the contact binary (CB) period limit. The unprecedented combination of mass ratio and period makes this sys
Externí odkaz:
http://arxiv.org/abs/2306.11607
Autor:
Papageorgiou, A., Christopoulou, P. -E., Lopes, C. E. Ferreira, Lalounta, E., Catelan, M., Drake, A. J.
We present the photometric analysis of three ultra-short period total eclipsing binaries in contact configuration, CRTS_J172718.0+431624, OGLE-BLG-ECL-000104, and OGLE-BLG-ECL-000012, mined from massive astronomical surveys. Using the available archi
Externí odkaz:
http://arxiv.org/abs/2212.03838
Autor:
Nora Assendorp, Matteo Fossati, Baptiste Libé-Philippot, Eirini Christopoulou, Marine Depp, Roberta Rapone, Florent Dingli, Damarys Loew, Pierre Vanderhaeghen, Cécile Charrier
Publikováno v:
Cell Reports, Vol 43, Iss 10, Pp 114797- (2024)
Summary: Human-specific genes are potential drivers of brain evolution. Among them, SRGAP2C has contributed to the emergence of features characterizing human cortical synapses, including their extended period of maturation. SRGAP2C inhibits its ances
Externí odkaz:
https://doaj.org/article/ab29ea019a3841c2913019173516f455
Autor:
E. Fountzilas, J. Souglakos, J. Alafis, K. Dadouli, A. Koumarianou, N. Tsoukalas, A. Nikolaidi, D. Mauri, M. Karagianni, A. Anna, A. Psyrri, G. Rigakos, A. Avgerinos, M. Theochari, D. Pectasides, G. Oikonomopoulos, A. Vagionas, P. Papakostas, A. Christopoulou, G. Fountzilas, Z. Saridaki
Publikováno v:
ESMO Gastrointestinal Oncology, Vol 5, Iss , Pp 100073- (2024)
Background: The superiority of paclitaxel/ramucirumab over alternative therapeutic regimens in patients with gastric cancer has yet to be defined. Our aim was to evaluate whether second-line treatment with paclitaxel/ramucirumab is superior compared
Externí odkaz:
https://doaj.org/article/54f878d61a0c46cf82ea8e716f6a28fb