Zobrazeno 1 - 10
of 7 332
pro vyhledávání: '"Silva,Ricardo"'
Autor:
Li, Kaican, Xie, Weiyan, Huang, Yongxiang, Deng, Didan, Hong, Lanqing, Li, Zhenguo, Silva, Ricardo, Zhang, Nevin L.
Fine-tuning foundation models often compromises their robustness to distribution shifts. To remedy this, most robust fine-tuning methods aim to preserve the pre-trained features. However, not all pre-trained features are robust and those methods are
Externí odkaz:
http://arxiv.org/abs/2411.19757
Instrumental variables (IVs) are widely used to estimate causal effects in the presence of unobserved confounding between exposure and outcome. An IV must affect the outcome exclusively through the exposure and be unconfounded with the outcome. We pr
Externí odkaz:
http://arxiv.org/abs/2411.06913
Autor:
Chaves, Antonio A., Resende, Mauricio G. C., Schuetz, Martin J. A., Brubaker, J. Kyle, Katzgraber, Helmut G., de Arruda, Edilson F., Silva, Ricardo M. A.
This paper presents the Random-Key Optimizer (RKO), a versatile and efficient stochastic local search method tailored for combinatorial optimization problems. Using the random-key concept, RKO encodes solutions as vectors of random keys that are subs
Externí odkaz:
http://arxiv.org/abs/2411.04293
The fine-tuning of pre-trained language models (PLMs) has been shown to be effective across various domains. By using domain-specific supervised data, the general-purpose representation derived from PLMs can be transformed into a domain-specific repr
Externí odkaz:
http://arxiv.org/abs/2410.14375
Autor:
Pognan, Quentin, Wu, Meng-Ru, Martínez-Pinedo, Gabriel, da Silva, Ricardo Ferreira, Jerkstrand, Anders, Grumer, Jon, Flörs, Andreas
Neutron star (NS) mergers are known to produce heavy elements through rapid neutron capture (r-process) nucleosynthesis. Actinides are expected to be created solely by the r-process in the most neutron rich environments. Confirming if NS mergers prov
Externí odkaz:
http://arxiv.org/abs/2409.16210
Autor:
da Silva, Ricardo E., Osório, Jonas H., Gérôme, Frédéric, Benabid, Fetah, Webb, David J., Franco, Marcos A. R., Cordeiro, Cristiano M. B.
An all-fiber dual Mach-Zehnder interferometer (MZI) based on an acoustically modulated hollow-core fiber (HCF) is experimentally demonstrated for the first time. By attaching an acoustic driver in between the fixed ends of an HCF, we fabricated two a
Externí odkaz:
http://arxiv.org/abs/2409.09148
Field-Effect Transistors with graphene channels or GFETs are an interesting alternative for the detection of analytes in biological fluids since the electrical behavior of the channel changes when exposed to a sample (among other detection strategies
Externí odkaz:
http://arxiv.org/abs/2407.09656
We consider sequential treatment regimes where each unit is exposed to combinations of interventions over time. When interventions are described by qualitative labels, such as "close schools for a month due to a pandemic" or "promote this podcast to
Externí odkaz:
http://arxiv.org/abs/2406.05745
This paper proposes a problem-independent GRASP metaheuristic using the random-key optimizer (RKO) paradigm. GRASP (greedy randomized adaptive search procedure) is a metaheuristic for combinatorial optimization that repeatedly applies a semi-greedy c
Externí odkaz:
http://arxiv.org/abs/2405.18681
Autor:
da Silva, Ricardo E., Osório, Jonas H., Webb, David J., Gérôme, Frédéric, Benabid, Fetah, Franco, Marcos A. R., Cordeiro, Cristiano M. B.
We demonstrate the acousto-optic modulation of a hybrid-lattice hollow core fiber (HL-HCF) for the first time. For many years, optical fibers with reduced diameters have been the main solution to increase the interaction of acoustic and optical waves
Externí odkaz:
http://arxiv.org/abs/2405.01779