Hš vinte anos atršs, eu achava que 480p era uma resolução ótima para vídeos e que somente filmes muito específicos (com fotografia excepcional) justificavam o uso de resolução de 720p, que ocupava muito espaço no HD/CD. Mas agora hš pouco estava assistindo um videoclip da Loreena McKennitt em resolução 480p na minha TV de 42 polegadas e mal conseguia distinguir as imagens.
Em parte isso é porque nossos cérebros ficaram muito acostumado a imagens em alta resolução. Mas, principalmente, c…
A new study has found that
eating 50 grams (1.76 ounces) or more of high-fat cheese a day
correlates with a lower risk of developing dementia.
That includes all cheeses with more than 20 percent fat content,
like brie, gouda, cheddar, parmesan, gruyere, and mozzarella.
The extensive, long-term study followed 27,670 adults in Sweden for around 25 years.
The findings establish an association between daily consumption of high-fat cheese
and lower demen…
Calibratable Disambiguation Loss for Multi-Instance Partial-Label Learning
Wei Tang, Yin-Fang Yang, Weijia Zhang, Min-Ling Zhang
https://arxiv.org/abs/2512.17788 https://arxiv.org/pdf/2512.17788 https://arxiv.org/html/2512.17788
arXiv:2512.17788v1 Announce Type: new
Abstract: Multi-instance partial-label learning (MIPL) is a weakly supervised framework that extends the principles of multi-instance learning (MIL) and partial-label learning (PLL) to address the challenges of inexact supervision in both instance and label spaces. However, existing MIPL approaches often suffer from poor calibration, undermining classifier reliability. In this work, we propose a plug-and-play calibratable disambiguation loss (CDL) that simultaneously improves classification accuracy and calibration performance. The loss has two instantiations: the first one calibrates predictions based on probabilities from the candidate label set, while the second one integrates probabilities from both candidate and non-candidate label sets. The proposed CDL can be seamlessly incorporated into existing MIPL and PLL frameworks. We provide a theoretical analysis that establishes the lower bound and regularization properties of CDL, demonstrating its superiority over conventional disambiguation losses. Experimental results on benchmark and real-world datasets confirm that our CDL significantly enhances both classification and calibration performance.
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Hoy he desinsalado Nova launcher. Uno de los principales motivos es de sobra por aquí conocido, el dev abandona (o le echan) el proyecto y la empresa que lo adquiere no deja que sea open source.
El segundo, y no menos importante, es que lo compré por 0,49€ allš entre 2015-2018 (no recuerdo la fecha exacta pero son los años que estuve usando el Mi4), y a día de hoy sigue siendo exactamente igual que por aquellos entonces.
Certain results on selection principles associated with bornological structure in topological spaces
Debraj Chandra, Subhankar Das, Nur Alam
https://arxiv.org/abs/2511.04038 https://arxiv.org/pdf/2511.04038 https://arxiv.org/html/2511.04038
arXiv:2511.04038v1 Announce Type: new
Abstract: We study selection principles related to bornological covers in a topological space $X$ following the work of Aurichi et al., 2019, where selection principles have been investigated in the function space $C_\mathfrak{B}(X)$ endowed with the topology $\tau_\mathfrak{B}$ of uniform convergence on bornology $\mathfrak{B}$. We show equivalences among certain selection principles and present some game theoretic observations involving bornological covers. We investigate selection principles on the product space $X^n$ equipped with the product bornolgy $\mathfrak{B}^n$, $n\in \omega$. Considering the cardinal invariants such as the unbounding number ($\mathfrak{b}$), dominating numbers ($\mathfrak{d}$), pseudointersection numbers ($\mathfrak{p}$) etc., we establish connections between the cardinality of base of a bornology with certain selection principles. Finally, we investigate some variations of the tightness properties of $C_\mathfrak{B}(X)$ and present their characterizations in terms of selective bornological covering properties of $X$.
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A questão pedia para utilizar derivadas para esboçar o gršfico de uma função de terceiro grau. Como a derivada é uma função de segundo grau, eu esperava que os alunos calculassem as raízes e aí, a partir da concavidade da paršbola, descobrissem aonde a derivada era positiva ou negativa. Mas a aluna, depois de obter os pontos críticos, simplesmente calculou o valor da função em pontos aleatórios entre os pontos críticos. Sem explicação do que estava fazendo. A princípio eu achei que ela estav…
Sequoia announces that Alfred Lin and Pat Grady will be elevated to firm stewards, succeeding Roelof Botha, who led Sequoia solo since 2022 (Dan Primack/Axios)
https://www.axios.com/2025/11/04/sequoia-capital-roelof-botha-pat-grady-alfred-lin
A year into Trump’s second term
MAGA’s internal contradictions can no longer be ignored.
The movement that had promised an end to foreign adventurism has found itself torn between an alliance of ideological noninterventionists and realists and a hawkish national security establishment.
Trumpism promised a revival of domestic manufacturing,
yet neither the president nor his advisers have decided whether this means tariffs, industrial policy, reviving organized labor,…